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   1 /*
   2  * GLSL pixel and vertex shader implementation
   3  *
   4  * Copyright 2006 Jason Green
   5  * Copyright 2006-2007 Henri Verbeet
   6  * Copyright 2007-2008 Stefan Dösinger for CodeWeavers
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Lesser General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2.1 of the License, or (at your option) any later version.
  12  *
  13  * This library is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public
  19  * License along with this library; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  21  */
  22
  23 /*
  24  * D3D shader asm has swizzles on source parameters, and write masks for
  25  * destination parameters. GLSL uses swizzles for both. The result of this is
  26  * that for example "mov dst.xw, src.zyxw" becomes "dst.xw = src.zw" in GLSL.
  27  * Ie, to generate a proper GLSL source swizzle, we need to take the D3D write
  28  * mask for the destination parameter into account.
  29  */
  30
  31 #include "config.h"
  32 #include <limits.h>
  33 #include <stdio.h>
  34 #include "wined3d_private.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(d3d_shader);
  37 WINE_DECLARE_DEBUG_CHANNEL(d3d_constants);
  38 WINE_DECLARE_DEBUG_CHANNEL(d3d_caps);
  39 WINE_DECLARE_DEBUG_CHANNEL(d3d);
  40
  41 #define GLINFO_LOCATION      (*gl_info)
  42
  43 #define WINED3D_GLSL_SAMPLE_PROJECTED   0x1
  44 #define WINED3D_GLSL_SAMPLE_RECT        0x2
  45 #define WINED3D_GLSL_SAMPLE_LOD         0x4
  46
  47 typedef struct {
  48     char reg_name[150];
  49     char mask_str[6];
  50 } glsl_dst_param_t;
  51
  52 typedef struct {
  53     char reg_name[150];
  54     char param_str[100];
  55 } glsl_src_param_t;
  56
  57 typedef struct {
  58     const char *name;
  59     DWORD coord_mask;
  60 } glsl_sample_function_t;
  61
  62 enum heap_node_op
  63 {
  64     HEAP_NODE_TRAVERSE_LEFT,
  65     HEAP_NODE_TRAVERSE_RIGHT,
  66     HEAP_NODE_POP,
  67 };
  68
  69 struct constant_entry
  70 {
  71     unsigned int idx;
  72     unsigned int version;
  73 };
  74
  75 struct constant_heap
  76 {
  77     struct constant_entry *entries;
  78     unsigned int *positions;
  79     unsigned int size;
  80 };
  81
  82 /* GLSL shader private data */
  83 struct shader_glsl_priv {
  84     struct hash_table_t *glsl_program_lookup;
  85     struct glsl_shader_prog_link *glsl_program;
  86     struct constant_heap vconst_heap;
  87     struct constant_heap pconst_heap;
  88     unsigned char *stack;
  89     GLhandleARB depth_blt_program[tex_type_count];
  90     UINT next_constant_version;
  91 };
  92
  93 /* Struct to maintain data about a linked GLSL program */
  94 struct glsl_shader_prog_link {
  95     struct list                 vshader_entry;
  96     struct list                 pshader_entry;
  97     GLhandleARB                 programId;
  98     GLint                       *vuniformF_locations;
  99     GLint                       *puniformF_locations;
 100     GLint                       vuniformI_locations[MAX_CONST_I];
 101     GLint                       puniformI_locations[MAX_CONST_I];
 102     GLint                       posFixup_location;
 103     GLint                       rectFixup_location[MAX_FRAGMENT_SAMPLERS];
 104     GLint                       bumpenvmat_location[MAX_TEXTURES];
 105     GLint                       luminancescale_location[MAX_TEXTURES];
 106     GLint                       luminanceoffset_location[MAX_TEXTURES];
 107     GLint                       ycorrection_location;
 108     GLenum                      vertex_color_clamp;
 109     IWineD3DVertexShader        *vshader;
 110     IWineD3DPixelShader         *pshader;
 111     struct vs_compile_args      vs_args;
 112     struct ps_compile_args      ps_args;
 113     UINT                        constant_version;
 114 };
 115
 116 typedef struct {
 117     IWineD3DVertexShader        *vshader;
 118     IWineD3DPixelShader         *pshader;
 119     struct ps_compile_args      ps_args;
 120     struct vs_compile_args      vs_args;
 121 } glsl_program_key_t;
 122
 123
 124 /** Prints the GLSL info log which will contain error messages if they exist */
 125 static void print_glsl_info_log(const WineD3D_GL_Info *gl_info, GLhandleARB obj)
 126 {
 127     int infologLength = 0;
 128     char *infoLog;
 129     unsigned int i;
 130     BOOL is_spam;
 131
 132     static const char * const spam[] =
 133     {
 134         "Vertex shader was successfully compiled to run on hardware.\n",    /* fglrx          */
 135         "Fragment shader was successfully compiled to run on hardware.\n",  /* fglrx          */
 136         "Fragment shader(s) linked, vertex shader(s) linked. \n ",          /* fglrx, with \n */
 137         "Fragment shader(s) linked, vertex shader(s) linked.",              /* fglrx, no \n   */
 138         "Vertex shader(s) linked, no fragment shader(s) defined. \n ",      /* fglrx, with \n */
 139         "Vertex shader(s) linked, no fragment shader(s) defined.",          /* fglrx, no \n   */
 140         "Fragment shader was successfully compiled to run on hardware.\n"
 141         "WARNING: 0:2: extension 'GL_ARB_draw_buffers' is not supported",
 142         "Fragment shader(s) linked, no vertex shader(s) defined.",          /* fglrx, no \n   */
 143         "Fragment shader(s) linked, no vertex shader(s) defined. \n ",      /* fglrx, with \n */
 144         "WARNING: 0:2: extension 'GL_ARB_draw_buffers' is not supported\n"  /* MacOS ati      */
 145     };
 146
 147     if (!TRACE_ON(d3d_shader) && !FIXME_ON(d3d_shader)) return;
 148
 149     GL_EXTCALL(glGetObjectParameterivARB(obj,
 150                GL_OBJECT_INFO_LOG_LENGTH_ARB,
 151                &infologLength));
 152
 153     /* A size of 1 is just a null-terminated string, so the log should be bigger than
 154      * that if there are errors. */
 155     if (infologLength > 1)
 156     {
 157         /* Fglrx doesn't terminate the string properly, but it tells us the proper length.
 158          * So use HEAP_ZERO_MEMORY to avoid uninitialized bytes
 159          */
 160         infoLog = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, infologLength);
 161         GL_EXTCALL(glGetInfoLogARB(obj, infologLength, NULL, infoLog));
 162         is_spam = FALSE;
 163
 164         for(i = 0; i < sizeof(spam) / sizeof(spam[0]); i++) {
 165             if(strcmp(infoLog, spam[i]) == 0) {
 166                 is_spam = TRUE;
 167                 break;
 168             }
 169         }
 170         if(is_spam) {
 171             TRACE("Spam received from GLSL shader #%u: %s\n", obj, debugstr_a(infoLog));
 172         } else {
 173             FIXME("Error received from GLSL shader #%u: %s\n", obj, debugstr_a(infoLog));
 174         }
 175         HeapFree(GetProcessHeap(), 0, infoLog);
 176     }
 177 }
 178
 179 /**
 180  * Loads (pixel shader) samplers
 181  */
 182 static void shader_glsl_load_psamplers(const WineD3D_GL_Info *gl_info, DWORD *tex_unit_map, GLhandleARB programId)
 183 {
 184     GLint name_loc;
 185     int i;
 186     char sampler_name[20];
 187
 188     for (i = 0; i < MAX_FRAGMENT_SAMPLERS; ++i) {
 189         snprintf(sampler_name, sizeof(sampler_name), "Psampler%d", i);
 190         name_loc = GL_EXTCALL(glGetUniformLocationARB(programId, sampler_name));
 191         if (name_loc != -1) {
 192             DWORD mapped_unit = tex_unit_map[i];
 193             if (mapped_unit != WINED3D_UNMAPPED_STAGE && mapped_unit < GL_LIMITS(fragment_samplers))
 194             {
 195                 TRACE("Loading %s for texture %d\n", sampler_name, mapped_unit);
 196                 GL_EXTCALL(glUniform1iARB(name_loc, mapped_unit));
 197                 checkGLcall("glUniform1iARB");
 198             } else {
 199                 ERR("Trying to load sampler %s on unsupported unit %d\n", sampler_name, mapped_unit);
 200             }
 201         }
 202     }
 203 }
 204
 205 static void shader_glsl_load_vsamplers(const WineD3D_GL_Info *gl_info, DWORD *tex_unit_map, GLhandleARB programId)
 206 {
 207     GLint name_loc;
 208     char sampler_name[20];
 209     int i;
 210
 211     for (i = 0; i < MAX_VERTEX_SAMPLERS; ++i) {
 212         snprintf(sampler_name, sizeof(sampler_name), "Vsampler%d", i);
 213         name_loc = GL_EXTCALL(glGetUniformLocationARB(programId, sampler_name));
 214         if (name_loc != -1) {
 215             DWORD mapped_unit = tex_unit_map[MAX_FRAGMENT_SAMPLERS + i];
 216             if (mapped_unit != WINED3D_UNMAPPED_STAGE && mapped_unit < GL_LIMITS(combined_samplers))
 217             {
 218                 TRACE("Loading %s for texture %d\n", sampler_name, mapped_unit);
 219                 GL_EXTCALL(glUniform1iARB(name_loc, mapped_unit));
 220                 checkGLcall("glUniform1iARB");
 221             } else {
 222                 ERR("Trying to load sampler %s on unsupported unit %d\n", sampler_name, mapped_unit);
 223             }
 224         }
 225     }
 226 }
 227
 228 static inline void walk_constant_heap(const WineD3D_GL_Info *gl_info, const float *constants,
 229         const GLint *constant_locations, const struct constant_heap *heap, unsigned char *stack, DWORD version)
 230 {
 231     int stack_idx = 0;
 232     unsigned int heap_idx = 1;
 233     unsigned int idx;
 234
 235     if (heap->entries[heap_idx].version <= version) return;
 236
 237     idx = heap->entries[heap_idx].idx;
 238     if (constant_locations[idx] != -1) GL_EXTCALL(glUniform4fvARB(constant_locations[idx], 1, &constants[idx * 4]));
 239     stack[stack_idx] = HEAP_NODE_TRAVERSE_LEFT;
 240
 241     while (stack_idx >= 0)
 242     {
 243         /* Note that we fall through to the next case statement. */
 244         switch(stack[stack_idx])
 245         {
 246             case HEAP_NODE_TRAVERSE_LEFT:
 247             {
 248                 unsigned int left_idx = heap_idx << 1;
 249                 if (left_idx < heap->size && heap->entries[left_idx].version > version)
 250                 {
 251                     heap_idx = left_idx;
 252                     idx = heap->entries[heap_idx].idx;
 253                     if (constant_locations[idx] != -1)
 254                         GL_EXTCALL(glUniform4fvARB(constant_locations[idx], 1, &constants[idx * 4]));
 255
 256                     stack[stack_idx++] = HEAP_NODE_TRAVERSE_RIGHT;
 257                     stack[stack_idx] = HEAP_NODE_TRAVERSE_LEFT;
 258                     break;
 259                 }
 260             }
 261
 262             case HEAP_NODE_TRAVERSE_RIGHT:
 263             {
 264                 unsigned int right_idx = (heap_idx << 1) + 1;
 265                 if (right_idx < heap->size && heap->entries[right_idx].version > version)
 266                 {
 267                     heap_idx = right_idx;
 268                     idx = heap->entries[heap_idx].idx;
 269                     if (constant_locations[idx] != -1)
 270                         GL_EXTCALL(glUniform4fvARB(constant_locations[idx], 1, &constants[idx * 4]));
 271
 272                     stack[stack_idx++] = HEAP_NODE_POP;
 273                     stack[stack_idx] = HEAP_NODE_TRAVERSE_LEFT;
 274                     break;
 275                 }
 276             }
 277
 278             case HEAP_NODE_POP:
 279             {
 280                 heap_idx >>= 1;
 281                 --stack_idx;
 282                 break;
 283             }
 284         }
 285     }
 286     checkGLcall("walk_constant_heap()");
 287 }
 288
 289 static inline void apply_clamped_constant(const WineD3D_GL_Info *gl_info, GLint location, const GLfloat *data)
 290 {
 291     GLfloat clamped_constant[4];
 292
 293     if (location == -1) return;
 294
 295     clamped_constant[0] = data[0] < -1.0f ? -1.0f : data[0] > 1.0 ? 1.0 : data[0];
 296     clamped_constant[1] = data[1] < -1.0f ? -1.0f : data[1] > 1.0 ? 1.0 : data[1];
 297     clamped_constant[2] = data[2] < -1.0f ? -1.0f : data[2] > 1.0 ? 1.0 : data[2];
 298     clamped_constant[3] = data[3] < -1.0f ? -1.0f : data[3] > 1.0 ? 1.0 : data[3];
 299
 300     GL_EXTCALL(glUniform4fvARB(location, 1, clamped_constant));
 301 }
 302
 303 static inline void walk_constant_heap_clamped(const WineD3D_GL_Info *gl_info, const float *constants,
 304         const GLint *constant_locations, const struct constant_heap *heap, unsigned char *stack, DWORD version)
 305 {
 306     int stack_idx = 0;
 307     unsigned int heap_idx = 1;
 308     unsigned int idx;
 309
 310     if (heap->entries[heap_idx].version <= version) return;
 311
 312     idx = heap->entries[heap_idx].idx;
 313     apply_clamped_constant(gl_info, constant_locations[idx], &constants[idx * 4]);
 314     stack[stack_idx] = HEAP_NODE_TRAVERSE_LEFT;
 315
 316     while (stack_idx >= 0)
 317     {
 318         /* Note that we fall through to the next case statement. */
 319         switch(stack[stack_idx])
 320         {
 321             case HEAP_NODE_TRAVERSE_LEFT:
 322             {
 323                 unsigned int left_idx = heap_idx << 1;
 324                 if (left_idx < heap->size && heap->entries[left_idx].version > version)
 325                 {
 326                     heap_idx = left_idx;
 327                     idx = heap->entries[heap_idx].idx;
 328                     apply_clamped_constant(gl_info, constant_locations[idx], &constants[idx * 4]);
 329
 330                     stack[stack_idx++] = HEAP_NODE_TRAVERSE_RIGHT;
 331                     stack[stack_idx] = HEAP_NODE_TRAVERSE_LEFT;
 332                     break;
 333                 }
 334             }
 335
 336             case HEAP_NODE_TRAVERSE_RIGHT:
 337             {
 338                 unsigned int right_idx = (heap_idx << 1) + 1;
 339                 if (right_idx < heap->size && heap->entries[right_idx].version > version)
 340                 {
 341                     heap_idx = right_idx;
 342                     idx = heap->entries[heap_idx].idx;
 343                     apply_clamped_constant(gl_info, constant_locations[idx], &constants[idx * 4]);
 344
 345                     stack[stack_idx++] = HEAP_NODE_POP;
 346                     stack[stack_idx] = HEAP_NODE_TRAVERSE_LEFT;
 347                     break;
 348                 }
 349             }
 350
 351             case HEAP_NODE_POP:
 352             {
 353                 heap_idx >>= 1;
 354                 --stack_idx;
 355                 break;
 356             }
 357         }
 358     }
 359     checkGLcall("walk_constant_heap_clamped()");
 360 }
 361
 362 /* Loads floating point constants (aka uniforms) into the currently set GLSL program. */
 363 static void shader_glsl_load_constantsF(IWineD3DBaseShaderImpl *This, const WineD3D_GL_Info *gl_info,
 364         const float *constants, const GLint *constant_locations, const struct constant_heap *heap,
 365         unsigned char *stack, UINT version)
 366 {
 367     const local_constant *lconst;
 368
 369     /* 1.X pshaders have the constants clamped to [-1;1] implicitly. */
 370     if (WINED3DSHADER_VERSION_MAJOR(This->baseShader.reg_maps.shader_version) == 1
 371             && shader_is_pshader_version(This->baseShader.reg_maps.shader_version))
 372         walk_constant_heap_clamped(gl_info, constants, constant_locations, heap, stack, version);
 373     else
 374         walk_constant_heap(gl_info, constants, constant_locations, heap, stack, version);
 375
 376     if (!This->baseShader.load_local_constsF)
 377     {
 378         TRACE("No need to load local float constants for this shader\n");
 379         return;
 380     }
 381
 382     /* Immediate constants are clamped to [-1;1] at shader creation time if needed */
 383     LIST_FOR_EACH_ENTRY(lconst, &This->baseShader.constantsF, local_constant, entry)
 384     {
 385         GLint location = constant_locations[lconst->idx];
 386         /* We found this uniform name in the program - go ahead and send the data */
 387         if (location != -1) GL_EXTCALL(glUniform4fvARB(location, 1, (const GLfloat *)lconst->value));
 388     }
 389     checkGLcall("glUniform4fvARB()");
 390 }
 391
 392 /* Loads integer constants (aka uniforms) into the currently set GLSL program. */
 393 static void shader_glsl_load_constantsI(IWineD3DBaseShaderImpl *This, const WineD3D_GL_Info *gl_info,
 394         const GLint locations[MAX_CONST_I], const int *constants, WORD constants_set)
 395 {
 396     unsigned int i;
 397     struct list* ptr;
 398
 399     for (i = 0; constants_set; constants_set >>= 1, ++i)
 400     {
 401         if (!(constants_set & 1)) continue;
 402
 403         TRACE_(d3d_constants)("Loading constants %u: %i, %i, %i, %i\n",
 404                 i, constants[i*4], constants[i*4+1], constants[i*4+2], constants[i*4+3]);
 405
 406         /* We found this uniform name in the program - go ahead and send the data */
 407         GL_EXTCALL(glUniform4ivARB(locations[i], 1, &constants[i*4]));
 408         checkGLcall("glUniform4ivARB");
 409     }
 410
 411     /* Load immediate constants */
 412     ptr = list_head(&This->baseShader.constantsI);
 413     while (ptr) {
 414         const struct local_constant *lconst = LIST_ENTRY(ptr, const struct local_constant, entry);
 415         unsigned int idx = lconst->idx;
 416         const GLint *values = (const GLint *)lconst->value;
 417
 418         TRACE_(d3d_constants)("Loading local constants %i: %i, %i, %i, %i\n", idx,
 419             values[0], values[1], values[2], values[3]);
 420
 421         /* We found this uniform name in the program - go ahead and send the data */
 422         GL_EXTCALL(glUniform4ivARB(locations[idx], 1, values));
 423         checkGLcall("glUniform4ivARB");
 424         ptr = list_next(&This->baseShader.constantsI, ptr);
 425     }
 426 }
 427
 428 /* Loads boolean constants (aka uniforms) into the currently set GLSL program. */
 429 static void shader_glsl_load_constantsB(IWineD3DBaseShaderImpl *This, const WineD3D_GL_Info *gl_info,
 430         GLhandleARB programId, const BOOL *constants, WORD constants_set)
 431 {
 432     GLint tmp_loc;
 433     unsigned int i;
 434     char tmp_name[8];
 435     char is_pshader = shader_is_pshader_version(This->baseShader.reg_maps.shader_version);
 436     const char* prefix = is_pshader? "PB":"VB";
 437     struct list* ptr;
 438
 439     /* TODO: Benchmark and see if it would be beneficial to store the
 440      * locations of the constants to avoid looking up each time */
 441     for (i = 0; constants_set; constants_set >>= 1, ++i)
 442     {
 443         if (!(constants_set & 1)) continue;
 444
 445         TRACE_(d3d_constants)("Loading constants %i: %i;\n", i, constants[i]);
 446
 447         /* TODO: Benchmark and see if it would be beneficial to store the
 448          * locations of the constants to avoid looking up each time */
 449         snprintf(tmp_name, sizeof(tmp_name), "%s[%i]", prefix, i);
 450         tmp_loc = GL_EXTCALL(glGetUniformLocationARB(programId, tmp_name));
 451         if (tmp_loc != -1)
 452         {
 453             /* We found this uniform name in the program - go ahead and send the data */
 454             GL_EXTCALL(glUniform1ivARB(tmp_loc, 1, &constants[i]));
 455             checkGLcall("glUniform1ivARB");
 456         }
 457     }
 458
 459     /* Load immediate constants */
 460     ptr = list_head(&This->baseShader.constantsB);
 461     while (ptr) {
 462         const struct local_constant *lconst = LIST_ENTRY(ptr, const struct local_constant, entry);
 463         unsigned int idx = lconst->idx;
 464         const GLint *values = (const GLint *)lconst->value;
 465
 466         TRACE_(d3d_constants)("Loading local constants %i: %i\n", idx, values[0]);
 467
 468         snprintf(tmp_name, sizeof(tmp_name), "%s[%i]", prefix, idx);
 469         tmp_loc = GL_EXTCALL(glGetUniformLocationARB(programId, tmp_name));
 470         if (tmp_loc != -1) {
 471             /* We found this uniform name in the program - go ahead and send the data */
 472             GL_EXTCALL(glUniform1ivARB(tmp_loc, 1, values));
 473             checkGLcall("glUniform1ivARB");
 474         }
 475         ptr = list_next(&This->baseShader.constantsB, ptr);
 476     }
 477 }
 478
 479 static void reset_program_constant_version(void *value, void *context)
 480 {
 481     struct glsl_shader_prog_link *entry = value;
 482     entry->constant_version = 0;
 483 }
 484
 485 /**
 486  * Loads the app-supplied constants into the currently set GLSL program.
 487  */
 488 static void shader_glsl_load_constants(
 489     IWineD3DDevice* device,
 490     char usePixelShader,
 491     char useVertexShader) {
 492
 493     IWineD3DDeviceImpl* deviceImpl = (IWineD3DDeviceImpl*) device;
 494     struct shader_glsl_priv *priv = deviceImpl->shader_priv;
 495     IWineD3DStateBlockImpl* stateBlock = deviceImpl->stateBlock;
 496     const WineD3D_GL_Info *gl_info = &deviceImpl->adapter->gl_info;
 497
 498     GLhandleARB programId;
 499     struct glsl_shader_prog_link *prog = priv->glsl_program;
 500     UINT constant_version;
 501     int i;
 502
 503     if (!prog) {
 504         /* No GLSL program set - nothing to do. */
 505         return;
 506     }
 507     programId = prog->programId;
 508     constant_version = prog->constant_version;
 509
 510     if (useVertexShader) {
 511         IWineD3DBaseShaderImpl* vshader = (IWineD3DBaseShaderImpl*) stateBlock->vertexShader;
 512
 513         /* Load DirectX 9 float constants/uniforms for vertex shader */
 514         shader_glsl_load_constantsF(vshader, gl_info, stateBlock->vertexShaderConstantF,
 515                 prog->vuniformF_locations, &priv->vconst_heap, priv->stack, constant_version);
 516
 517         /* Load DirectX 9 integer constants/uniforms for vertex shader */
 518         if(vshader->baseShader.uses_int_consts) {
 519             shader_glsl_load_constantsI(vshader, gl_info, prog->vuniformI_locations,
 520                     stateBlock->vertexShaderConstantI, stateBlock->changed.vertexShaderConstantsI);
 521         }
 522
 523         /* Load DirectX 9 boolean constants/uniforms for vertex shader */
 524         if(vshader->baseShader.uses_bool_consts) {
 525             shader_glsl_load_constantsB(vshader, gl_info, programId,
 526                     stateBlock->vertexShaderConstantB, stateBlock->changed.vertexShaderConstantsB);
 527         }
 528
 529         /* Upload the position fixup params */
 530         GL_EXTCALL(glUniform4fvARB(prog->posFixup_location, 1, &deviceImpl->posFixup[0]));
 531         checkGLcall("glUniform4fvARB");
 532     }
 533
 534     if (usePixelShader) {
 535
 536         IWineD3DBaseShaderImpl* pshader = (IWineD3DBaseShaderImpl*) stateBlock->pixelShader;
 537
 538         /* Load DirectX 9 float constants/uniforms for pixel shader */
 539         shader_glsl_load_constantsF(pshader, gl_info, stateBlock->pixelShaderConstantF,
 540                 prog->puniformF_locations, &priv->pconst_heap, priv->stack, constant_version);
 541
 542         /* Load DirectX 9 integer constants/uniforms for pixel shader */
 543         if(pshader->baseShader.uses_int_consts) {
 544             shader_glsl_load_constantsI(pshader, gl_info, prog->puniformI_locations,
 545                     stateBlock->pixelShaderConstantI, stateBlock->changed.pixelShaderConstantsI);
 546         }
 547
 548         /* Load DirectX 9 boolean constants/uniforms for pixel shader */
 549         if(pshader->baseShader.uses_bool_consts) {
 550             shader_glsl_load_constantsB(pshader, gl_info, programId,
 551                     stateBlock->pixelShaderConstantB, stateBlock->changed.pixelShaderConstantsB);
 552         }
 553
 554         /* Upload the environment bump map matrix if needed. The needsbumpmat member specifies the texture stage to load the matrix from.
 555          * It can't be 0 for a valid texbem instruction.
 556          */
 557         for(i = 0; i < ((IWineD3DPixelShaderImpl *) pshader)->numbumpenvmatconsts; i++) {
 558             IWineD3DPixelShaderImpl *ps = (IWineD3DPixelShaderImpl *) pshader;
 559             int stage = ps->luminanceconst[i].texunit;
 560
 561             const float *data = (const float *)&stateBlock->textureState[(int)ps->bumpenvmatconst[i].texunit][WINED3DTSS_BUMPENVMAT00];
 562             GL_EXTCALL(glUniformMatrix2fvARB(prog->bumpenvmat_location[i], 1, 0, data));
 563             checkGLcall("glUniformMatrix2fvARB");
 564
 565             /* texbeml needs the luminance scale and offset too. If texbeml is used, needsbumpmat
 566              * is set too, so we can check that in the needsbumpmat check
 567              */
 568             if(ps->baseShader.reg_maps.luminanceparams[stage]) {
 569                 const GLfloat *scale = (const GLfloat *)&stateBlock->textureState[stage][WINED3DTSS_BUMPENVLSCALE];
 570                 const GLfloat *offset = (const GLfloat *)&stateBlock->textureState[stage][WINED3DTSS_BUMPENVLOFFSET];
 571
 572                 GL_EXTCALL(glUniform1fvARB(prog->luminancescale_location[i], 1, scale));
 573                 checkGLcall("glUniform1fvARB");
 574                 GL_EXTCALL(glUniform1fvARB(prog->luminanceoffset_location[i], 1, offset));
 575                 checkGLcall("glUniform1fvARB");
 576             }
 577         }
 578
 579         if(((IWineD3DPixelShaderImpl *) pshader)->vpos_uniform) {
 580             float correction_params[4];
 581             if(deviceImpl->render_offscreen) {
 582                 correction_params[0] = 0.0;
 583                 correction_params[1] = 1.0;
 584             } else {
 585                 /* position is window relative, not viewport relative */
 586                 correction_params[0] = ((IWineD3DSurfaceImpl *) deviceImpl->render_targets[0])->currentDesc.Height;
 587                 correction_params[1] = -1.0;
 588             }
 589             GL_EXTCALL(glUniform4fvARB(prog->ycorrection_location, 1, correction_params));
 590         }
 591
 592         /* Constant loading for texture rect coord fixup. */
 593         if (prog->ps_args.texrect_fixup) {
 594             UINT fixup = prog->ps_args.texrect_fixup;
 595
 596             for (i = 0; fixup; fixup >>= 1, ++i) {
 597                 if (-1 != prog->rectFixup_location[i]) {
 598                     const IWineD3DBaseTextureImpl* const tex = (const IWineD3DBaseTextureImpl*) stateBlock->textures[i];
 599                     if (!tex) {
 600                         FIXME("Non-existant texture is flagged for NP2 texcoord fixup\n");
 601                         continue;
 602                     } else {
 603                         const float tex_dim[2] = {tex->baseTexture.pow2Matrix[0], tex->baseTexture.pow2Matrix[5]};
 604                         GL_EXTCALL(glUniform2fvARB(prog->rectFixup_location[i], 1, tex_dim));
 605                     }
 606                 }
 607             }
 608         }
 609     }
 610
 611     if (priv->next_constant_version == UINT_MAX)
 612     {
 613         TRACE("Max constant version reached, resetting to 0.\n");
 614         hash_table_for_each_entry(priv->glsl_program_lookup, reset_program_constant_version, NULL);
 615         priv->next_constant_version = 1;
 616     }
 617     else
 618     {
 619         prog->constant_version = priv->next_constant_version++;
 620     }
 621 }
 622
 623 static inline void update_heap_entry(struct constant_heap *heap, unsigned int idx,
 624         unsigned int heap_idx, DWORD new_version)
 625 {
 626     struct constant_entry *entries = heap->entries;
 627     unsigned int *positions = heap->positions;
 628     unsigned int parent_idx;
 629
 630     while (heap_idx > 1)
 631     {
 632         parent_idx = heap_idx >> 1;
 633
 634         if (new_version <= entries[parent_idx].version) break;
 635
 636         entries[heap_idx] = entries[parent_idx];
 637         positions[entries[parent_idx].idx] = heap_idx;
 638         heap_idx = parent_idx;
 639     }
 640
 641     entries[heap_idx].version = new_version;
 642     entries[heap_idx].idx = idx;
 643     positions[idx] = heap_idx;
 644 }
 645
 646 static void shader_glsl_update_float_vertex_constants(IWineD3DDevice *iface, UINT start, UINT count)
 647 {
 648     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
 649     struct shader_glsl_priv *priv = This->shader_priv;
 650     struct constant_heap *heap = &priv->vconst_heap;
 651     UINT i;
 652
 653     for (i = start; i < count + start; ++i)
 654     {
 655         if (!This->stateBlock->changed.vertexShaderConstantsF[i])
 656             update_heap_entry(heap, i, heap->size++, priv->next_constant_version);
 657         else
 658             update_heap_entry(heap, i, heap->positions[i], priv->next_constant_version);
 659     }
 660 }
 661
 662 static void shader_glsl_update_float_pixel_constants(IWineD3DDevice *iface, UINT start, UINT count)
 663 {
 664     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
 665     struct shader_glsl_priv *priv = This->shader_priv;
 666     struct constant_heap *heap = &priv->pconst_heap;
 667     UINT i;
 668
 669     for (i = start; i < count + start; ++i)
 670     {
 671         if (!This->stateBlock->changed.pixelShaderConstantsF[i])
 672             update_heap_entry(heap, i, heap->size++, priv->next_constant_version);
 673         else
 674             update_heap_entry(heap, i, heap->positions[i], priv->next_constant_version);
 675     }
 676 }
 677
 678 /** Generate the variable & register declarations for the GLSL output target */
 679 static void shader_generate_glsl_declarations(IWineD3DBaseShader *iface, const shader_reg_maps *reg_maps,
 680         SHADER_BUFFER *buffer, const WineD3D_GL_Info *gl_info,
 681         const struct ps_compile_args *ps_args)
 682 {
 683     IWineD3DBaseShaderImpl* This = (IWineD3DBaseShaderImpl*) iface;
 684     IWineD3DDeviceImpl *device = (IWineD3DDeviceImpl *) This->baseShader.device;
 685     DWORD shader_version = reg_maps->shader_version;
 686     unsigned int i, extra_constants_needed = 0;
 687     const local_constant *lconst;
 688
 689     /* There are some minor differences between pixel and vertex shaders */
 690     char pshader = shader_is_pshader_version(shader_version);
 691     char prefix = pshader ? 'P' : 'V';
 692
 693     /* Prototype the subroutines */
 694     for (i = 0; i < This->baseShader.limits.label; i++) {
 695         if (reg_maps->labels[i])
 696             shader_addline(buffer, "void subroutine%u();\n", i);
 697     }
 698
 699     /* Declare the constants (aka uniforms) */
 700     if (This->baseShader.limits.constant_float > 0) {
 701         unsigned max_constantsF = min(This->baseShader.limits.constant_float,
 702                 (pshader ? GL_LIMITS(pshader_constantsF) : GL_LIMITS(vshader_constantsF)));
 703         shader_addline(buffer, "uniform vec4 %cC[%u];\n", prefix, max_constantsF);
 704     }
 705
 706     if (This->baseShader.limits.constant_int > 0)
 707         shader_addline(buffer, "uniform ivec4 %cI[%u];\n", prefix, This->baseShader.limits.constant_int);
 708
 709     if (This->baseShader.limits.constant_bool > 0)
 710         shader_addline(buffer, "uniform bool %cB[%u];\n", prefix, This->baseShader.limits.constant_bool);
 711
 712     if(!pshader) {
 713         shader_addline(buffer, "uniform vec4 posFixup;\n");
 714         /* Predeclaration; This function is added at link time based on the pixel shader.
 715          * VS 3.0 shaders have an array OUT[] the shader writes to, earlier versions don't have
 716          * that. We know the input to the reorder function at vertex shader compile time, so
 717          * we can deal with that. The reorder function for a 1.x and 2.x vertex shader can just
 718          * read gl_FrontColor. The output depends on the pixel shader. The reorder function for a
 719          * 1.x and 2.x pshader or for fixed function will write gl_FrontColor, and for a 3.0 shader
 720          * it will write to the varying array. Here we depend on the shader optimizer on sorting that
 721          * out. The nvidia driver only does that if the parameter is inout instead of out, hence the
 722          * inout.
 723          */
 724         if (shader_version >= WINED3DVS_VERSION(3, 0))
 725         {
 726             shader_addline(buffer, "void order_ps_input(in vec4[%u]);\n", MAX_REG_OUTPUT);
 727         } else {
 728             shader_addline(buffer, "void order_ps_input();\n");
 729         }
 730     } else {
 731         IWineD3DPixelShaderImpl *ps_impl = (IWineD3DPixelShaderImpl *) This;
 732
 733         ps_impl->numbumpenvmatconsts = 0;
 734         for(i = 0; i < (sizeof(reg_maps->bumpmat) / sizeof(reg_maps->bumpmat[0])); i++) {
 735             if(!reg_maps->bumpmat[i]) {
 736                 continue;
 737             }
 738
 739             ps_impl->bumpenvmatconst[(int) ps_impl->numbumpenvmatconsts].texunit = i;
 740             shader_addline(buffer, "uniform mat2 bumpenvmat%d;\n", i);
 741
 742             if(reg_maps->luminanceparams) {
 743                 ps_impl->luminanceconst[(int) ps_impl->numbumpenvmatconsts].texunit = i;
 744                 shader_addline(buffer, "uniform float luminancescale%d;\n", i);
 745                 shader_addline(buffer, "uniform float luminanceoffset%d;\n", i);
 746                 extra_constants_needed++;
 747             } else {
 748                 ps_impl->luminanceconst[(int) ps_impl->numbumpenvmatconsts].texunit = -1;
 749             }
 750
 751             extra_constants_needed++;
 752             ps_impl->numbumpenvmatconsts++;
 753         }
 754
 755         if(ps_args->srgb_correction) {
 756             shader_addline(buffer, "const vec4 srgb_mul_low = vec4(%f, %f, %f, %f);\n",
 757                             srgb_mul_low, srgb_mul_low, srgb_mul_low, srgb_mul_low);
 758             shader_addline(buffer, "const vec4 srgb_comparison = vec4(%f, %f, %f, %f);\n",
 759                             srgb_cmp, srgb_cmp, srgb_cmp, srgb_cmp);
 760         }
 761         if(reg_maps->vpos || reg_maps->usesdsy) {
 762             if(This->baseShader.limits.constant_float + extra_constants_needed + 1 < GL_LIMITS(pshader_constantsF)) {
 763                 shader_addline(buffer, "uniform vec4 ycorrection;\n");
 764                 ((IWineD3DPixelShaderImpl *) This)->vpos_uniform = 1;
 765                 extra_constants_needed++;
 766             } else {
 767                 /* This happens because we do not have proper tracking of the constant registers that are
 768                  * actually used, only the max limit of the shader version
 769                  */
 770                 FIXME("Cannot find a free uniform for vpos correction params\n");
 771                 shader_addline(buffer, "const vec4 ycorrection = vec4(%f, %f, 0.0, 0.0);\n",
 772                                device->render_offscreen ? 0.0 : ((IWineD3DSurfaceImpl *) device->render_targets[0])->currentDesc.Height,
 773                                device->render_offscreen ? 1.0 : -1.0);
 774             }
 775             shader_addline(buffer, "vec4 vpos;\n");
 776         }
 777     }
 778
 779     /* Declare texture samplers */
 780     for (i = 0; i < This->baseShader.limits.sampler; i++) {
 781         if (reg_maps->samplers[i]) {
 782
 783             DWORD stype = reg_maps->samplers[i] & WINED3DSP_TEXTURETYPE_MASK;
 784             switch (stype) {
 785
 786                 case WINED3DSTT_1D:
 787                     shader_addline(buffer, "uniform sampler1D %csampler%u;\n", prefix, i);
 788                     break;
 789                 case WINED3DSTT_2D:
 790                     if(device->stateBlock->textures[i] &&
 791                        IWineD3DBaseTexture_GetTextureDimensions(device->stateBlock->textures[i]) == GL_TEXTURE_RECTANGLE_ARB) {
 792                         shader_addline(buffer, "uniform sampler2DRect %csampler%u;\n", prefix, i);
 793                     } else {
 794                         shader_addline(buffer, "uniform sampler2D %csampler%u;\n", prefix, i);
 795                     }
 796
 797                     if(ps_args->texrect_fixup & (1 << i)) {
 798                         /* RECT textures in OpenGL use texcoords in the range [0,width]x[0,height]
 799                          * while D3D has them in the (normalized) [0,1]x[0,1] range.
 800                          * samplerRectFixup stores texture dimensions and is updated through
 801                          * shader_glsl_load_constants when the sampler changes. */
 802                         shader_addline(buffer, "uniform vec2 %csamplerRectFixup%u;\n", prefix, i);
 803                     }
 804                     break;
 805                 case WINED3DSTT_CUBE:
 806                     shader_addline(buffer, "uniform samplerCube %csampler%u;\n", prefix, i);
 807                     break;
 808                 case WINED3DSTT_VOLUME:
 809                     shader_addline(buffer, "uniform sampler3D %csampler%u;\n", prefix, i);
 810                     break;
 811                 default:
 812                     shader_addline(buffer, "uniform unsupported_sampler %csampler%u;\n", prefix, i);
 813                     FIXME("Unrecognized sampler type: %#x\n", stype);
 814                     break;
 815             }
 816         }
 817     }
 818
 819     /* Declare address variables */
 820     for (i = 0; i < This->baseShader.limits.address; i++) {
 821         if (reg_maps->address[i])
 822             shader_addline(buffer, "ivec4 A%d;\n", i);
 823     }
 824
 825     /* Declare texture coordinate temporaries and initialize them */
 826     for (i = 0; i < This->baseShader.limits.texcoord; i++) {
 827         if (reg_maps->texcoord[i])
 828             shader_addline(buffer, "vec4 T%u = gl_TexCoord[%u];\n", i, i);
 829     }
 830
 831     /* Declare input register varyings. Only pixel shader, vertex shaders have that declared in the
 832      * helper function shader that is linked in at link time
 833      */
 834     if (pshader && shader_version >= WINED3DPS_VERSION(3, 0))
 835     {
 836         if (use_vs(device->stateBlock))
 837         {
 838             shader_addline(buffer, "varying vec4 IN[%u];\n", GL_LIMITS(glsl_varyings) / 4);
 839         } else {
 840             /* TODO: Write a replacement shader for the fixed function vertex pipeline, so this isn't needed.
 841              * For fixed function vertex processing + 3.0 pixel shader we need a separate function in the
 842              * pixel shader that reads the fixed function color into the packed input registers.
 843              */
 844             shader_addline(buffer, "vec4 IN[%u];\n", GL_LIMITS(glsl_varyings) / 4);
 845         }
 846     }
 847
 848     /* Declare output register temporaries */
 849     if(This->baseShader.limits.packed_output) {
 850         shader_addline(buffer, "vec4 OUT[%u];\n", This->baseShader.limits.packed_output);
 851     }
 852
 853     /* Declare temporary variables */
 854     for(i = 0; i < This->baseShader.limits.temporary; i++) {
 855         if (reg_maps->temporary[i])
 856             shader_addline(buffer, "vec4 R%u;\n", i);
 857     }
 858
 859     /* Declare attributes */
 860     for (i = 0; i < This->baseShader.limits.attributes; i++) {
 861         if (reg_maps->attributes[i])
 862             shader_addline(buffer, "attribute vec4 attrib%i;\n", i);
 863     }
 864
 865     /* Declare loop registers aLx */
 866     for (i = 0; i < reg_maps->loop_depth; i++) {
 867         shader_addline(buffer, "int aL%u;\n", i);
 868         shader_addline(buffer, "int tmpInt%u;\n", i);
 869     }
 870
 871     /* Temporary variables for matrix operations */
 872     shader_addline(buffer, "vec4 tmp0;\n");
 873     shader_addline(buffer, "vec4 tmp1;\n");
 874
 875     /* Local constants use a different name so they can be loaded once at shader link time
 876      * They can't be hardcoded into the shader text via LC = {x, y, z, w}; because the
 877      * float -> string conversion can cause precision loss.
 878      */
 879     if(!This->baseShader.load_local_constsF) {
 880         LIST_FOR_EACH_ENTRY(lconst, &This->baseShader.constantsF, local_constant, entry) {
 881             shader_addline(buffer, "uniform vec4 %cLC%u;\n", prefix, lconst->idx);
 882         }
 883     }
 884
 885     /* Start the main program */
 886     shader_addline(buffer, "void main() {\n");
 887     if(pshader && reg_maps->vpos) {
 888         /* DirectX apps expect integer values, while OpenGL drivers add approximately 0.5. This causes
 889          * off-by-one problems as spotted by the vPos d3d9 visual test. Unfortunately the ATI cards do
 890          * not add exactly 0.5, but rather something like 0.49999999 or 0.50000001, which still causes
 891          * precision troubles when we just substract 0.5.
 892          *
 893          * To deal with that just floor() the position. This will eliminate the fraction on all cards.
 894          *
 895          * TODO: Test how that behaves with multisampling once we can enable multisampling in winex11.
 896          *
 897          * An advantage of floor is that it works even if the driver doesn't add 1/2. It is somewhat
 898          * questionable if 1.5, 2.5, ... are the proper values to return in gl_FragCoord, even though
 899          * coordinates specify the pixel centers instead of the pixel corners. This code will behave
 900          * correctly on drivers that returns integer values.
 901          */
 902         shader_addline(buffer, "vpos = floor(vec4(0, ycorrection[0], 0, 0) + gl_FragCoord * vec4(1, ycorrection[1], 1, 1));\n");
 903     }
 904 }
 905
 906 /*****************************************************************************
 907  * Functions to generate GLSL strings from DirectX Shader bytecode begin here.
 908  *
 909  * For more information, see http://wiki.winehq.org/DirectX-Shaders
 910  ****************************************************************************/
 911
 912 /* Prototypes */
 913 static void shader_glsl_add_src_param(const struct wined3d_shader_instruction *ins, const DWORD param,
 914         const DWORD addr_token, DWORD mask, glsl_src_param_t *src_param);
 915
 916 /** Used for opcode modifiers - They multiply the result by the specified amount */
 917 static const char * const shift_glsl_tab[] = {
 918     "",           /*  0 (none) */
 919     "2.0 * ",     /*  1 (x2)   */
 920     "4.0 * ",     /*  2 (x4)   */
 921     "8.0 * ",     /*  3 (x8)   */
 922     "16.0 * ",    /*  4 (x16)  */
 923     "32.0 * ",    /*  5 (x32)  */
 924     "",           /*  6 (x64)  */
 925     "",           /*  7 (x128) */
 926     "",           /*  8 (d256) */
 927     "",           /*  9 (d128) */
 928     "",           /* 10 (d64)  */
 929     "",           /* 11 (d32)  */
 930     "0.0625 * ",  /* 12 (d16)  */
 931     "0.125 * ",   /* 13 (d8)   */
 932     "0.25 * ",    /* 14 (d4)   */
 933     "0.5 * "      /* 15 (d2)   */
 934 };
 935
 936 /* Generate a GLSL parameter that does the input modifier computation and return the input register/mask to use */
 937 static void shader_glsl_gen_modifier (
 938     const DWORD instr,
 939     const char *in_reg,
 940     const char *in_regswizzle,
 941     char *out_str) {
 942
 943     out_str[0] = 0;
 944
 945     switch (instr & WINED3DSP_SRCMOD_MASK) {
 946     case WINED3DSPSM_DZ: /* Need to handle this in the instructions itself (texld & texcrd). */
 947     case WINED3DSPSM_DW:
 948     case WINED3DSPSM_NONE:
 949         sprintf(out_str, "%s%s", in_reg, in_regswizzle);
 950         break;
 951     case WINED3DSPSM_NEG:
 952         sprintf(out_str, "-%s%s", in_reg, in_regswizzle);
 953         break;
 954     case WINED3DSPSM_NOT:
 955         sprintf(out_str, "!%s%s", in_reg, in_regswizzle);
 956         break;
 957     case WINED3DSPSM_BIAS:
 958         sprintf(out_str, "(%s%s - vec4(0.5)%s)", in_reg, in_regswizzle, in_regswizzle);
 959         break;
 960     case WINED3DSPSM_BIASNEG:
 961         sprintf(out_str, "-(%s%s - vec4(0.5)%s)", in_reg, in_regswizzle, in_regswizzle);
 962         break;
 963     case WINED3DSPSM_SIGN:
 964         sprintf(out_str, "(2.0 * (%s%s - 0.5))", in_reg, in_regswizzle);
 965         break;
 966     case WINED3DSPSM_SIGNNEG:
 967         sprintf(out_str, "-(2.0 * (%s%s - 0.5))", in_reg, in_regswizzle);
 968         break;
 969     case WINED3DSPSM_COMP:
 970         sprintf(out_str, "(1.0 - %s%s)", in_reg, in_regswizzle);
 971         break;
 972     case WINED3DSPSM_X2:
 973         sprintf(out_str, "(2.0 * %s%s)", in_reg, in_regswizzle);
 974         break;
 975     case WINED3DSPSM_X2NEG:
 976         sprintf(out_str, "-(2.0 * %s%s)", in_reg, in_regswizzle);
 977         break;
 978     case WINED3DSPSM_ABS:
 979         sprintf(out_str, "abs(%s%s)", in_reg, in_regswizzle);
 980         break;
 981     case WINED3DSPSM_ABSNEG:
 982         sprintf(out_str, "-abs(%s%s)", in_reg, in_regswizzle);
 983         break;
 984     default:
 985         FIXME("Unhandled modifier %u\n", (instr & WINED3DSP_SRCMOD_MASK));
 986         sprintf(out_str, "%s%s", in_reg, in_regswizzle);
 987     }
 988 }
 989
 990 /** Writes the GLSL variable name that corresponds to the register that the
 991  * DX opcode parameter is trying to access */
 992 static void shader_glsl_get_register_name(const DWORD param, const DWORD addr_token,
 993         char *regstr, BOOL *is_color, const struct wined3d_shader_instruction *ins)
 994 {
 995     /* oPos, oFog and oPts in D3D */
 996     static const char * const hwrastout_reg_names[] = { "gl_Position", "gl_FogFragCoord", "gl_PointSize" };
 997
 998     DWORD reg = param & WINED3DSP_REGNUM_MASK;
 999     DWORD regtype = shader_get_regtype(param);
1000     IWineD3DBaseShaderImpl *This = (IWineD3DBaseShaderImpl *)ins->shader;
1001     IWineD3DDeviceImpl* deviceImpl = (IWineD3DDeviceImpl*) This->baseShader.device;
1002     const WineD3D_GL_Info* gl_info = &deviceImpl->adapter->gl_info;
1003     DWORD shader_version = This->baseShader.reg_maps.shader_version;
1004     char pshader = shader_is_pshader_version(shader_version);
1005     char tmpStr[150];
1006
1007     *is_color = FALSE;
1008
1009     switch (regtype) {
1010     case WINED3DSPR_TEMP:
1011         sprintf(tmpStr, "R%u", reg);
1012     break;
1013     case WINED3DSPR_INPUT:
1014         if (pshader) {
1015             /* Pixel shaders >= 3.0 */
1016             if (WINED3DSHADER_VERSION_MAJOR(shader_version) >= 3)
1017             {
1018                 DWORD in_count = GL_LIMITS(glsl_varyings) / 4;
1019
1020                 if (param & WINED3DSHADER_ADDRMODE_RELATIVE) {
1021                     glsl_src_param_t rel_param;
1022                     shader_glsl_add_src_param(ins, addr_token, 0, WINED3DSP_WRITEMASK_0, &rel_param);
1023
1024                     /* Removing a + 0 would be an obvious optimization, but macos doesn't see the NOP
1025                      * operation there
1026                      */
1027                     if(((IWineD3DPixelShaderImpl *) This)->input_reg_map[reg]) {
1028                         if (((IWineD3DPixelShaderImpl *)This)->declared_in_count > in_count) {
1029                             sprintf(tmpStr, "((%s + %u) > %d ? (%s + %u) > %d ? gl_SecondaryColor : gl_Color : IN[%s + %u])",
1030                                     rel_param.param_str, ((IWineD3DPixelShaderImpl *)This)->input_reg_map[reg], in_count - 1,
1031                                     rel_param.param_str, ((IWineD3DPixelShaderImpl *)This)->input_reg_map[reg], in_count,
1032                                     rel_param.param_str, ((IWineD3DPixelShaderImpl *)This)->input_reg_map[reg]);
1033                         } else {
1034                             sprintf(tmpStr, "IN[%s + %u]", rel_param.param_str, ((IWineD3DPixelShaderImpl *)This)->input_reg_map[reg]);
1035                         }
1036                     } else {
1037                         if (((IWineD3DPixelShaderImpl *)This)->declared_in_count > in_count) {
1038                             sprintf(tmpStr, "((%s) > %d ? (%s) > %d ? gl_SecondaryColor : gl_Color : IN[%s])",
1039                                     rel_param.param_str, in_count - 1,
1040                                     rel_param.param_str, in_count,
1041                                     rel_param.param_str);
1042                         } else {
1043                             sprintf(tmpStr, "IN[%s]", rel_param.param_str);
1044                         }
1045                     }
1046                 } else {
1047                     DWORD idx = ((IWineD3DPixelShaderImpl *) This)->input_reg_map[reg];
1048                     if (idx == in_count) {
1049                         sprintf(tmpStr, "gl_Color");
1050                     } else if (idx == in_count + 1) {
1051                         sprintf(tmpStr, "gl_SecondaryColor");
1052                     } else {
1053                         sprintf(tmpStr, "IN[%u]", idx);
1054                     }
1055                 }
1056             } else {
1057                 if (reg==0)
1058                     strcpy(tmpStr, "gl_Color");
1059                 else
1060                     strcpy(tmpStr, "gl_SecondaryColor");
1061             }
1062         } else {
1063             if (((IWineD3DVertexShaderImpl *)This)->cur_args->swizzle_map & (1 << reg)) *is_color = TRUE;
1064             sprintf(tmpStr, "attrib%u", reg);
1065         }
1066         break;
1067     case WINED3DSPR_CONST:
1068     {
1069         const char prefix = pshader? 'P':'V';
1070
1071         /* Relative addressing */
1072         if (param & WINED3DSHADER_ADDRMODE_RELATIVE) {
1073
1074            /* Relative addressing on shaders 2.0+ have a relative address token,
1075             * prior to that, it was hard-coded as "A0.x" because there's only 1 register */
1076            if (WINED3DSHADER_VERSION_MAJOR(shader_version) >= 2)
1077            {
1078                glsl_src_param_t rel_param;
1079                shader_glsl_add_src_param(ins, addr_token, 0, WINED3DSP_WRITEMASK_0, &rel_param);
1080                if(reg) {
1081                    sprintf(tmpStr, "%cC[%s + %u]", prefix, rel_param.param_str, reg);
1082                } else {
1083                    sprintf(tmpStr, "%cC[%s]", prefix, rel_param.param_str);
1084                }
1085            } else {
1086                if(reg) {
1087                    sprintf(tmpStr, "%cC[A0.x + %u]", prefix, reg);
1088                } else {
1089                    sprintf(tmpStr, "%cC[A0.x]", prefix);
1090                }
1091            }
1092
1093         } else {
1094             if(shader_constant_is_local(This, reg)) {
1095                 sprintf(tmpStr, "%cLC%u", prefix, reg);
1096             } else {
1097                 sprintf(tmpStr, "%cC[%u]", prefix, reg);
1098             }
1099         }
1100
1101         break;
1102     }
1103     case WINED3DSPR_CONSTINT:
1104         if (pshader)
1105             sprintf(tmpStr, "PI[%u]", reg);
1106         else
1107             sprintf(tmpStr, "VI[%u]", reg);
1108         break;
1109     case WINED3DSPR_CONSTBOOL:
1110         if (pshader)
1111             sprintf(tmpStr, "PB[%u]", reg);
1112         else
1113             sprintf(tmpStr, "VB[%u]", reg);
1114         break;
1115     case WINED3DSPR_TEXTURE: /* case WINED3DSPR_ADDR: */
1116         if (pshader) {
1117             sprintf(tmpStr, "T%u", reg);
1118         } else {
1119             sprintf(tmpStr, "A%u", reg);
1120         }
1121     break;
1122     case WINED3DSPR_LOOP:
1123         sprintf(tmpStr, "aL%u", This->baseShader.cur_loop_regno - 1);
1124     break;
1125     case WINED3DSPR_SAMPLER:
1126         if (pshader)
1127             sprintf(tmpStr, "Psampler%u", reg);
1128         else
1129             sprintf(tmpStr, "Vsampler%u", reg);
1130     break;
1131     case WINED3DSPR_COLOROUT:
1132         if (reg >= GL_LIMITS(buffers)) {
1133             WARN("Write to render target %u, only %d supported\n", reg, 4);
1134         }
1135         if (GL_SUPPORT(ARB_DRAW_BUFFERS)) {
1136             sprintf(tmpStr, "gl_FragData[%u]", reg);
1137         } else { /* On older cards with GLSL support like the GeforceFX there's only one buffer. */
1138             sprintf(tmpStr, "gl_FragColor");
1139         }
1140     break;
1141     case WINED3DSPR_RASTOUT:
1142         sprintf(tmpStr, "%s", hwrastout_reg_names[reg]);
1143     break;
1144     case WINED3DSPR_DEPTHOUT:
1145         sprintf(tmpStr, "gl_FragDepth");
1146     break;
1147     case WINED3DSPR_ATTROUT:
1148         if (reg == 0) {
1149             sprintf(tmpStr, "gl_FrontColor");
1150         } else {
1151             sprintf(tmpStr, "gl_FrontSecondaryColor");
1152         }
1153     break;
1154     case WINED3DSPR_TEXCRDOUT:
1155         /* Vertex shaders >= 3.0: WINED3DSPR_OUTPUT */
1156         if (WINED3DSHADER_VERSION_MAJOR(shader_version) >= 3) sprintf(tmpStr, "OUT[%u]", reg);
1157         else sprintf(tmpStr, "gl_TexCoord[%u]", reg);
1158     break;
1159     case WINED3DSPR_MISCTYPE:
1160         if (reg == 0) {
1161             /* vPos */
1162             sprintf(tmpStr, "vpos");
1163         } else if (reg == 1){
1164             /* Note that gl_FrontFacing is a bool, while vFace is
1165              * a float for which the sign determines front/back
1166              */
1167             sprintf(tmpStr, "(gl_FrontFacing ? 1.0 : -1.0)");
1168         } else {
1169             FIXME("Unhandled misctype register %d\n", reg);
1170             sprintf(tmpStr, "unrecognized_register");
1171         }
1172         break;
1173     default:
1174         FIXME("Unhandled register name Type(%d)\n", regtype);
1175         sprintf(tmpStr, "unrecognized_register");
1176     break;
1177     }
1178
1179     strcat(regstr, tmpStr);
1180 }
1181
1182 /* Get the GLSL write mask for the destination register */
1183 static DWORD shader_glsl_get_write_mask(const DWORD param, char *write_mask) {
1184     char *ptr = write_mask;
1185     DWORD mask = param & WINED3DSP_WRITEMASK_ALL;
1186
1187     if (shader_is_scalar(param)) {
1188         mask = WINED3DSP_WRITEMASK_0;
1189     } else {
1190         *ptr++ = '.';
1191         if (param & WINED3DSP_WRITEMASK_0) *ptr++ = 'x';
1192         if (param & WINED3DSP_WRITEMASK_1) *ptr++ = 'y';
1193         if (param & WINED3DSP_WRITEMASK_2) *ptr++ = 'z';
1194         if (param & WINED3DSP_WRITEMASK_3) *ptr++ = 'w';
1195     }
1196
1197     *ptr = '\0';
1198
1199     return mask;
1200 }
1201
1202 static unsigned int shader_glsl_get_write_mask_size(DWORD write_mask) {
1203     unsigned int size = 0;
1204
1205     if (write_mask & WINED3DSP_WRITEMASK_0) ++size;
1206     if (write_mask & WINED3DSP_WRITEMASK_1) ++size;
1207     if (write_mask & WINED3DSP_WRITEMASK_2) ++size;
1208     if (write_mask & WINED3DSP_WRITEMASK_3) ++size;
1209
1210     return size;
1211 }
1212
1213 static void shader_glsl_get_swizzle(const DWORD param, BOOL fixup, DWORD mask, char *swizzle_str) {
1214     /* For registers of type WINED3DDECLTYPE_D3DCOLOR, data is stored as "bgra",
1215      * but addressed as "rgba". To fix this we need to swap the register's x
1216      * and z components. */
1217     DWORD swizzle = (param & WINED3DSP_SWIZZLE_MASK) >> WINED3DSP_SWIZZLE_SHIFT;
1218     const char *swizzle_chars = fixup ? "zyxw" : "xyzw";
1219     char *ptr = swizzle_str;
1220
1221     if (!shader_is_scalar(param)) {
1222         *ptr++ = '.';
1223         /* swizzle bits fields: wwzzyyxx */
1224         if (mask & WINED3DSP_WRITEMASK_0) *ptr++ = swizzle_chars[swizzle & 0x03];
1225         if (mask & WINED3DSP_WRITEMASK_1) *ptr++ = swizzle_chars[(swizzle >> 2) & 0x03];
1226         if (mask & WINED3DSP_WRITEMASK_2) *ptr++ = swizzle_chars[(swizzle >> 4) & 0x03];
1227         if (mask & WINED3DSP_WRITEMASK_3) *ptr++ = swizzle_chars[(swizzle >> 6) & 0x03];
1228     }
1229
1230     *ptr = '\0';
1231 }
1232
1233 /* From a given parameter token, generate the corresponding GLSL string.
1234  * Also, return the actual register name and swizzle in case the
1235  * caller needs this information as well. */
1236 static void shader_glsl_add_src_param(const struct wined3d_shader_instruction *ins,
1237         const DWORD param, const DWORD addr_token, DWORD mask, glsl_src_param_t *src_param)
1238 {
1239     BOOL is_color = FALSE;
1240     char swizzle_str[6];
1241
1242     src_param->reg_name[0] = '\0';
1243     src_param->param_str[0] = '\0';
1244     swizzle_str[0] = '\0';
1245
1246     shader_glsl_get_register_name(param, addr_token, src_param->reg_name, &is_color, ins);
1247
1248     shader_glsl_get_swizzle(param, is_color, mask, swizzle_str);
1249     shader_glsl_gen_modifier(param, src_param->reg_name, swizzle_str, src_param->param_str);
1250 }
1251
1252 /* From a given parameter token, generate the corresponding GLSL string.
1253  * Also, return the actual register name and swizzle in case the
1254  * caller needs this information as well. */
1255 static DWORD shader_glsl_add_dst_param(const struct wined3d_shader_instruction *ins,
1256         const struct wined3d_shader_dst_param *wined3d_dst, glsl_dst_param_t *glsl_dst)
1257 {
1258     BOOL is_color = FALSE;
1259
1260     glsl_dst->mask_str[0] = '\0';
1261     glsl_dst->reg_name[0] = '\0';
1262
1263     shader_glsl_get_register_name(wined3d_dst->token, wined3d_dst->addr_token, glsl_dst->reg_name, &is_color, ins);
1264     return shader_glsl_get_write_mask(wined3d_dst->token, glsl_dst->mask_str);
1265 }
1266
1267 /* Append the destination part of the instruction to the buffer, return the effective write mask */
1268 static DWORD shader_glsl_append_dst_ext(SHADER_BUFFER *buffer,
1269         const struct wined3d_shader_instruction *ins, const struct wined3d_shader_dst_param *dst)
1270 {
1271     glsl_dst_param_t glsl_dst;
1272     DWORD mask;
1273     int shift;
1274
1275     mask = shader_glsl_add_dst_param(ins, dst, &glsl_dst);
1276     if (mask)
1277     {
1278         shift = (dst->token & WINED3DSP_DSTSHIFT_MASK) >> WINED3DSP_DSTSHIFT_SHIFT;
1279         shader_addline(buffer, "%s%s = %s(", glsl_dst.reg_name, glsl_dst.mask_str, shift_glsl_tab[shift]);
1280     }
1281
1282     return mask;
1283 }
1284
1285 /* Append the destination part of the instruction to the buffer, return the effective write mask */
1286 static DWORD shader_glsl_append_dst(SHADER_BUFFER *buffer, const struct wined3d_shader_instruction *ins)
1287 {
1288     return shader_glsl_append_dst_ext(buffer, ins, &ins->dst[0]);
1289 }
1290
1291 /** Process GLSL instruction modifiers */
1292 void shader_glsl_add_instruction_modifiers(const struct wined3d_shader_instruction *ins)
1293 {
1294     glsl_dst_param_t dst_param;
1295     DWORD modifiers;
1296
1297     if (!ins->dst_count) return;
1298
1299     modifiers = ins->dst[0].modifiers;
1300     if (!modifiers) return;
1301
1302     shader_glsl_add_dst_param(ins, &ins->dst[0], &dst_param);
1303
1304     if (modifiers & WINED3DSPDM_SATURATE)
1305     {
1306         /* _SAT means to clamp the value of the register to between 0 and 1 */
1307         shader_addline(ins->buffer, "%s%s = clamp(%s%s, 0.0, 1.0);\n", dst_param.reg_name,
1308                 dst_param.mask_str, dst_param.reg_name, dst_param.mask_str);
1309     }
1310
1311     if (modifiers & WINED3DSPDM_MSAMPCENTROID)
1312     {
1313         FIXME("_centroid modifier not handled\n");
1314     }
1315
1316     if (modifiers & WINED3DSPDM_PARTIALPRECISION)
1317     {
1318         /* MSDN says this modifier can be safely ignored, so that's what we'll do. */
1319     }
1320 }
1321
1322 static inline const char *shader_get_comp_op(DWORD flags)
1323 {
1324     DWORD op = (flags & INST_CONTROLS_MASK) >> INST_CONTROLS_SHIFT;
1325     switch (op) {
1326         case COMPARISON_GT: return ">";
1327         case COMPARISON_EQ: return "==";
1328         case COMPARISON_GE: return ">=";
1329         case COMPARISON_LT: return "<";
1330         case COMPARISON_NE: return "!=";
1331         case COMPARISON_LE: return "<=";
1332         default:
1333             FIXME("Unrecognized comparison value: %u\n", op);
1334             return "(\?\?)";
1335     }
1336 }
1337
1338 static void shader_glsl_get_sample_function(DWORD sampler_type, DWORD flags, glsl_sample_function_t *sample_function)
1339 {
1340     BOOL projected = flags & WINED3D_GLSL_SAMPLE_PROJECTED;
1341     BOOL texrect = flags & WINED3D_GLSL_SAMPLE_RECT;
1342     BOOL lod = flags & WINED3D_GLSL_SAMPLE_LOD;
1343
1344     /* Note that there's no such thing as a projected cube texture. */
1345     switch(sampler_type) {
1346         case WINED3DSTT_1D:
1347             if(lod) {
1348                 sample_function->name = projected ? "texture1DProjLod" : "texture1DLod";
1349             } else {
1350                 sample_function->name = projected ? "texture1DProj" : "texture1D";
1351             }
1352             sample_function->coord_mask = WINED3DSP_WRITEMASK_0;
1353             break;
1354         case WINED3DSTT_2D:
1355             if(texrect) {
1356                 if(lod) {
1357                     sample_function->name = projected ? "texture2DRectProjLod" : "texture2DRectLod";
1358                 } else {
1359                     sample_function->name = projected ? "texture2DRectProj" : "texture2DRect";
1360                 }
1361             } else {
1362                 if(lod) {
1363                     sample_function->name = projected ? "texture2DProjLod" : "texture2DLod";
1364                 } else {
1365                     sample_function->name = projected ? "texture2DProj" : "texture2D";
1366                 }
1367             }
1368             sample_function->coord_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1;
1369             break;
1370         case WINED3DSTT_CUBE:
1371             if(lod) {
1372                 sample_function->name = "textureCubeLod";
1373             } else {
1374                 sample_function->name = "textureCube";
1375             }
1376             sample_function->coord_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
1377             break;
1378         case WINED3DSTT_VOLUME:
1379             if(lod) {
1380                 sample_function->name = projected ? "texture3DProjLod" : "texture3DLod";
1381             } else {
1382                 sample_function->name = projected ? "texture3DProj" : "texture3D";
1383             }
1384             sample_function->coord_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
1385             break;
1386         default:
1387             sample_function->name = "";
1388             sample_function->coord_mask = 0;
1389             FIXME("Unrecognized sampler type: %#x;\n", sampler_type);
1390             break;
1391     }
1392 }
1393
1394 static void shader_glsl_append_fixup_arg(char *arguments, const char *reg_name,
1395         BOOL sign_fixup, enum fixup_channel_source channel_source)
1396 {
1397     switch(channel_source)
1398     {
1399         case CHANNEL_SOURCE_ZERO:
1400             strcat(arguments, "0.0");
1401             break;
1402
1403         case CHANNEL_SOURCE_ONE:
1404             strcat(arguments, "1.0");
1405             break;
1406
1407         case CHANNEL_SOURCE_X:
1408             strcat(arguments, reg_name);
1409             strcat(arguments, ".x");
1410             break;
1411
1412         case CHANNEL_SOURCE_Y:
1413             strcat(arguments, reg_name);
1414             strcat(arguments, ".y");
1415             break;
1416
1417         case CHANNEL_SOURCE_Z:
1418             strcat(arguments, reg_name);
1419             strcat(arguments, ".z");
1420             break;
1421
1422         case CHANNEL_SOURCE_W:
1423             strcat(arguments, reg_name);
1424             strcat(arguments, ".w");
1425             break;
1426
1427         default:
1428             FIXME("Unhandled channel source %#x\n", channel_source);
1429             strcat(arguments, "undefined");
1430             break;
1431     }
1432
1433     if (sign_fixup) strcat(arguments, " * 2.0 - 1.0");
1434 }
1435
1436 static void shader_glsl_color_correction(const struct wined3d_shader_instruction *ins, struct color_fixup_desc fixup)
1437 {
1438     unsigned int mask_size, remaining;
1439     glsl_dst_param_t dst_param;
1440     char arguments[256];
1441     DWORD mask;
1442     BOOL dummy;
1443
1444     mask = 0;
1445     if (fixup.x_sign_fixup || fixup.x_source != CHANNEL_SOURCE_X) mask |= WINED3DSP_WRITEMASK_0;
1446     if (fixup.y_sign_fixup || fixup.y_source != CHANNEL_SOURCE_Y) mask |= WINED3DSP_WRITEMASK_1;
1447     if (fixup.z_sign_fixup || fixup.z_source != CHANNEL_SOURCE_Z) mask |= WINED3DSP_WRITEMASK_2;
1448     if (fixup.w_sign_fixup || fixup.w_source != CHANNEL_SOURCE_W) mask |= WINED3DSP_WRITEMASK_3;
1449     mask &= ins->dst[0].token;
1450
1451     if (!mask) return; /* Nothing to do */
1452
1453     if (is_yuv_fixup(fixup))
1454     {
1455         enum yuv_fixup yuv_fixup = get_yuv_fixup(fixup);
1456         FIXME("YUV fixup (%#x) not supported\n", yuv_fixup);
1457         return;
1458     }
1459
1460     mask_size = shader_glsl_get_write_mask_size(mask);
1461
1462     dst_param.mask_str[0] = '\0';
1463     shader_glsl_get_write_mask(mask, dst_param.mask_str);
1464
1465     dst_param.reg_name[0] = '\0';
1466     shader_glsl_get_register_name(ins->dst[0].token, ins->dst[0].addr_token, dst_param.reg_name, &dummy, ins);
1467
1468     arguments[0] = '\0';
1469     remaining = mask_size;
1470     if (mask & WINED3DSP_WRITEMASK_0)
1471     {
1472         shader_glsl_append_fixup_arg(arguments, dst_param.reg_name, fixup.x_sign_fixup, fixup.x_source);
1473         if (--remaining) strcat(arguments, ", ");
1474     }
1475     if (mask & WINED3DSP_WRITEMASK_1)
1476     {
1477         shader_glsl_append_fixup_arg(arguments, dst_param.reg_name, fixup.y_sign_fixup, fixup.y_source);
1478         if (--remaining) strcat(arguments, ", ");
1479     }
1480     if (mask & WINED3DSP_WRITEMASK_2)
1481     {
1482         shader_glsl_append_fixup_arg(arguments, dst_param.reg_name, fixup.z_sign_fixup, fixup.z_source);
1483         if (--remaining) strcat(arguments, ", ");
1484     }
1485     if (mask & WINED3DSP_WRITEMASK_3)
1486     {
1487         shader_glsl_append_fixup_arg(arguments, dst_param.reg_name, fixup.w_sign_fixup, fixup.w_source);
1488         if (--remaining) strcat(arguments, ", ");
1489     }
1490
1491     if (mask_size > 1)
1492     {
1493         shader_addline(ins->buffer, "%s%s = vec%u(%s);\n",
1494                 dst_param.reg_name, dst_param.mask_str, mask_size, arguments);
1495     }
1496     else
1497     {
1498         shader_addline(ins->buffer, "%s%s = %s;\n", dst_param.reg_name, dst_param.mask_str, arguments);
1499     }
1500 }
1501
1502 static void PRINTF_ATTR(6, 7) shader_glsl_gen_sample_code(const struct wined3d_shader_instruction *ins,
1503         DWORD sampler, const glsl_sample_function_t *sample_function, DWORD swizzle,
1504         const char *bias, const char *coord_reg_fmt, ...)
1505 {
1506     const char *sampler_base;
1507     char dst_swizzle[6];
1508     struct color_fixup_desc fixup;
1509     BOOL rect_fixup = FALSE;
1510     va_list args;
1511
1512     shader_glsl_get_swizzle(swizzle, FALSE, ins->dst[0].token, dst_swizzle);
1513
1514     if (shader_is_pshader_version(ins->reg_maps->shader_version))
1515     {
1516         IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)ins->shader;
1517         fixup = This->cur_args->color_fixup[sampler];
1518         sampler_base = "Psampler";
1519
1520         if(This->cur_args->texrect_fixup & (1 << sampler)) {
1521             if(bias) {
1522                 FIXME("Biased sampling from RECT textures is unsupported\n");
1523             } else {
1524                 rect_fixup = TRUE;
1525             }
1526         }
1527     } else {
1528         sampler_base = "Vsampler";
1529         fixup = COLOR_FIXUP_IDENTITY; /* FIXME: Vshader color fixup */
1530     }
1531
1532     shader_glsl_append_dst(ins->buffer, ins);
1533
1534     shader_addline(ins->buffer, "%s(%s%u, ", sample_function->name, sampler_base, sampler);
1535
1536     va_start(args, coord_reg_fmt);
1537     shader_vaddline(ins->buffer, coord_reg_fmt, args);
1538     va_end(args);
1539
1540     if(bias) {
1541         shader_addline(ins->buffer, ", %s)%s);\n", bias, dst_swizzle);
1542     } else {
1543         if (rect_fixup) {
1544             shader_addline(ins->buffer, " * PsamplerRectFixup%u)%s);\n", sampler, dst_swizzle);
1545         } else {
1546             shader_addline(ins->buffer, ")%s);\n", dst_swizzle);
1547         }
1548     }
1549
1550     if(!is_identity_fixup(fixup)) {
1551         shader_glsl_color_correction(ins, fixup);
1552     }
1553 }
1554
1555 /*****************************************************************************
1556  *
1557  * Begin processing individual instruction opcodes
1558  *
1559  ****************************************************************************/
1560
1561 /* Generate GLSL arithmetic functions (dst = src1 + src2) */
1562 static void shader_glsl_arith(const struct wined3d_shader_instruction *ins)
1563 {
1564     SHADER_BUFFER *buffer = ins->buffer;
1565     glsl_src_param_t src0_param;
1566     glsl_src_param_t src1_param;
1567     DWORD write_mask;
1568     char op;
1569
1570     /* Determine the GLSL operator to use based on the opcode */
1571     switch (ins->handler_idx)
1572     {
1573         case WINED3DSIH_MUL: op = '*'; break;
1574         case WINED3DSIH_ADD: op = '+'; break;
1575         case WINED3DSIH_SUB: op = '-'; break;
1576         default:
1577             op = ' ';
1578             FIXME("Opcode %#x not yet handled in GLSL\n", ins->handler_idx);
1579             break;
1580     }
1581
1582     write_mask = shader_glsl_append_dst(buffer, ins);
1583     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], write_mask, &src0_param);
1584     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], write_mask, &src1_param);
1585     shader_addline(buffer, "%s %c %s);\n", src0_param.param_str, op, src1_param.param_str);
1586 }
1587
1588 /* Process the WINED3DSIO_MOV opcode using GLSL (dst = src) */
1589 static void shader_glsl_mov(const struct wined3d_shader_instruction *ins)
1590 {
1591     SHADER_BUFFER *buffer = ins->buffer;
1592     glsl_src_param_t src0_param;
1593     DWORD write_mask;
1594
1595     write_mask = shader_glsl_append_dst(buffer, ins);
1596     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], write_mask, &src0_param);
1597
1598     /* In vs_1_1 WINED3DSIO_MOV can write to the address register. In later
1599      * shader versions WINED3DSIO_MOVA is used for this. */
1600     if ((WINED3DSHADER_VERSION_MAJOR(ins->reg_maps->shader_version) == 1
1601             && !shader_is_pshader_version(ins->reg_maps->shader_version)
1602             && shader_get_regtype(ins->dst[0].token) == WINED3DSPR_ADDR))
1603     {
1604         /* This is a simple floor() */
1605         unsigned int mask_size = shader_glsl_get_write_mask_size(write_mask);
1606         if (mask_size > 1) {
1607             shader_addline(buffer, "ivec%d(floor(%s)));\n", mask_size, src0_param.param_str);
1608         } else {
1609             shader_addline(buffer, "int(floor(%s)));\n", src0_param.param_str);
1610         }
1611     }
1612     else if(ins->handler_idx == WINED3DSIH_MOVA)
1613     {
1614         /* We need to *round* to the nearest int here. */
1615         unsigned int mask_size = shader_glsl_get_write_mask_size(write_mask);
1616         if (mask_size > 1) {
1617             shader_addline(buffer, "ivec%d(floor(abs(%s) + vec%d(0.5)) * sign(%s)));\n", mask_size, src0_param.param_str, mask_size, src0_param.param_str);
1618         } else {
1619             shader_addline(buffer, "int(floor(abs(%s) + 0.5) * sign(%s)));\n", src0_param.param_str, src0_param.param_str);
1620         }
1621     } else {
1622         shader_addline(buffer, "%s);\n", src0_param.param_str);
1623     }
1624 }
1625
1626 /* Process the dot product operators DP3 and DP4 in GLSL (dst = dot(src0, src1)) */
1627 static void shader_glsl_dot(const struct wined3d_shader_instruction *ins)
1628 {
1629     SHADER_BUFFER *buffer = ins->buffer;
1630     glsl_src_param_t src0_param;
1631     glsl_src_param_t src1_param;
1632     DWORD dst_write_mask, src_write_mask;
1633     unsigned int dst_size = 0;
1634
1635     dst_write_mask = shader_glsl_append_dst(buffer, ins);
1636     dst_size = shader_glsl_get_write_mask_size(dst_write_mask);
1637
1638     /* dp3 works on vec3, dp4 on vec4 */
1639     if (ins->handler_idx == WINED3DSIH_DP4)
1640     {
1641         src_write_mask = WINED3DSP_WRITEMASK_ALL;
1642     } else {
1643         src_write_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
1644     }
1645
1646     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], src_write_mask, &src0_param);
1647     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], src_write_mask, &src1_param);
1648
1649     if (dst_size > 1) {
1650         shader_addline(buffer, "vec%d(dot(%s, %s)));\n", dst_size, src0_param.param_str, src1_param.param_str);
1651     } else {
1652         shader_addline(buffer, "dot(%s, %s));\n", src0_param.param_str, src1_param.param_str);
1653     }
1654 }
1655
1656 /* Note that this instruction has some restrictions. The destination write mask
1657  * can't contain the w component, and the source swizzles have to be .xyzw */
1658 static void shader_glsl_cross(const struct wined3d_shader_instruction *ins)
1659 {
1660     DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
1661     glsl_src_param_t src0_param;
1662     glsl_src_param_t src1_param;
1663     char dst_mask[6];
1664
1665     shader_glsl_get_write_mask(ins->dst[0].token, dst_mask);
1666     shader_glsl_append_dst(ins->buffer, ins);
1667     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], src_mask, &src0_param);
1668     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], src_mask, &src1_param);
1669     shader_addline(ins->buffer, "cross(%s, %s)%s);\n", src0_param.param_str, src1_param.param_str, dst_mask);
1670 }
1671
1672 /* Process the WINED3DSIO_POW instruction in GLSL (dst = |src0|^src1)
1673  * Src0 and src1 are scalars. Note that D3D uses the absolute of src0, while
1674  * GLSL uses the value as-is. */
1675 static void shader_glsl_pow(const struct wined3d_shader_instruction *ins)
1676 {
1677     SHADER_BUFFER *buffer = ins->buffer;
1678     glsl_src_param_t src0_param;
1679     glsl_src_param_t src1_param;
1680     DWORD dst_write_mask;
1681     unsigned int dst_size;
1682
1683     dst_write_mask = shader_glsl_append_dst(buffer, ins);
1684     dst_size = shader_glsl_get_write_mask_size(dst_write_mask);
1685
1686     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
1687     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], WINED3DSP_WRITEMASK_0, &src1_param);
1688
1689     if (dst_size > 1) {
1690         shader_addline(buffer, "vec%d(pow(abs(%s), %s)));\n", dst_size, src0_param.param_str, src1_param.param_str);
1691     } else {
1692         shader_addline(buffer, "pow(abs(%s), %s));\n", src0_param.param_str, src1_param.param_str);
1693     }
1694 }
1695
1696 /* Process the WINED3DSIO_LOG instruction in GLSL (dst = log2(|src0|))
1697  * Src0 is a scalar. Note that D3D uses the absolute of src0, while
1698  * GLSL uses the value as-is. */
1699 static void shader_glsl_log(const struct wined3d_shader_instruction *ins)
1700 {
1701     SHADER_BUFFER *buffer = ins->buffer;
1702     glsl_src_param_t src0_param;
1703     DWORD dst_write_mask;
1704     unsigned int dst_size;
1705
1706     dst_write_mask = shader_glsl_append_dst(buffer, ins);
1707     dst_size = shader_glsl_get_write_mask_size(dst_write_mask);
1708
1709     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
1710
1711     if (dst_size > 1) {
1712         shader_addline(buffer, "vec%d(log2(abs(%s))));\n", dst_size, src0_param.param_str);
1713     } else {
1714         shader_addline(buffer, "log2(abs(%s)));\n", src0_param.param_str);
1715     }
1716 }
1717
1718 /* Map the opcode 1-to-1 to the GL code (arg->dst = instruction(src0, src1, ...) */
1719 static void shader_glsl_map2gl(const struct wined3d_shader_instruction *ins)
1720 {
1721     SHADER_BUFFER *buffer = ins->buffer;
1722     glsl_src_param_t src_param;
1723     const char *instruction;
1724     DWORD write_mask;
1725     unsigned i;
1726
1727     /* Determine the GLSL function to use based on the opcode */
1728     /* TODO: Possibly make this a table for faster lookups */
1729     switch (ins->handler_idx)
1730     {
1731         case WINED3DSIH_MIN: instruction = "min"; break;
1732         case WINED3DSIH_MAX: instruction = "max"; break;
1733         case WINED3DSIH_ABS: instruction = "abs"; break;
1734         case WINED3DSIH_FRC: instruction = "fract"; break;
1735         case WINED3DSIH_NRM: instruction = "normalize"; break;
1736         case WINED3DSIH_EXP: instruction = "exp2"; break;
1737         case WINED3DSIH_SGN: instruction = "sign"; break;
1738         case WINED3DSIH_DSX: instruction = "dFdx"; break;
1739         case WINED3DSIH_DSY: instruction = "ycorrection.y * dFdy"; break;
1740         default: instruction = "";
1741             FIXME("Opcode %#x not yet handled in GLSL\n", ins->handler_idx);
1742             break;
1743     }
1744
1745     write_mask = shader_glsl_append_dst(buffer, ins);
1746
1747     shader_addline(buffer, "%s(", instruction);
1748
1749     if (ins->src_count)
1750     {
1751         shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], write_mask, &src_param);
1752         shader_addline(buffer, "%s", src_param.param_str);
1753         for (i = 1; i < ins->src_count; ++i)
1754         {
1755             shader_glsl_add_src_param(ins, ins->src[i], ins->src_addr[i], write_mask, &src_param);
1756             shader_addline(buffer, ", %s", src_param.param_str);
1757         }
1758     }
1759
1760     shader_addline(buffer, "));\n");
1761 }
1762
1763 /** Process the WINED3DSIO_EXPP instruction in GLSL:
1764  * For shader model 1.x, do the following (and honor the writemask, so use a temporary variable):
1765  *   dst.x = 2^(floor(src))
1766  *   dst.y = src - floor(src)
1767  *   dst.z = 2^src   (partial precision is allowed, but optional)
1768  *   dst.w = 1.0;
1769  * For 2.0 shaders, just do this (honoring writemask and swizzle):
1770  *   dst = 2^src;    (partial precision is allowed, but optional)
1771  */
1772 static void shader_glsl_expp(const struct wined3d_shader_instruction *ins)
1773 {
1774     glsl_src_param_t src_param;
1775
1776     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_0, &src_param);
1777
1778     if (ins->reg_maps->shader_version < WINED3DPS_VERSION(2,0))
1779     {
1780         char dst_mask[6];
1781
1782         shader_addline(ins->buffer, "tmp0.x = exp2(floor(%s));\n", src_param.param_str);
1783         shader_addline(ins->buffer, "tmp0.y = %s - floor(%s);\n", src_param.param_str, src_param.param_str);
1784         shader_addline(ins->buffer, "tmp0.z = exp2(%s);\n", src_param.param_str);
1785         shader_addline(ins->buffer, "tmp0.w = 1.0;\n");
1786
1787         shader_glsl_append_dst(ins->buffer, ins);
1788         shader_glsl_get_write_mask(ins->dst[0].token, dst_mask);
1789         shader_addline(ins->buffer, "tmp0%s);\n", dst_mask);
1790     } else {
1791         DWORD write_mask;
1792         unsigned int mask_size;
1793
1794         write_mask = shader_glsl_append_dst(ins->buffer, ins);
1795         mask_size = shader_glsl_get_write_mask_size(write_mask);
1796
1797         if (mask_size > 1) {
1798             shader_addline(ins->buffer, "vec%d(exp2(%s)));\n", mask_size, src_param.param_str);
1799         } else {
1800             shader_addline(ins->buffer, "exp2(%s));\n", src_param.param_str);
1801         }
1802     }
1803 }
1804
1805 /** Process the RCP (reciprocal or inverse) opcode in GLSL (dst = 1 / src) */
1806 static void shader_glsl_rcp(const struct wined3d_shader_instruction *ins)
1807 {
1808     glsl_src_param_t src_param;
1809     DWORD write_mask;
1810     unsigned int mask_size;
1811
1812     write_mask = shader_glsl_append_dst(ins->buffer, ins);
1813     mask_size = shader_glsl_get_write_mask_size(write_mask);
1814     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_3, &src_param);
1815
1816     if (mask_size > 1) {
1817         shader_addline(ins->buffer, "vec%d(1.0 / %s));\n", mask_size, src_param.param_str);
1818     } else {
1819         shader_addline(ins->buffer, "1.0 / %s);\n", src_param.param_str);
1820     }
1821 }
1822
1823 static void shader_glsl_rsq(const struct wined3d_shader_instruction *ins)
1824 {
1825     SHADER_BUFFER *buffer = ins->buffer;
1826     glsl_src_param_t src_param;
1827     DWORD write_mask;
1828     unsigned int mask_size;
1829
1830     write_mask = shader_glsl_append_dst(buffer, ins);
1831     mask_size = shader_glsl_get_write_mask_size(write_mask);
1832
1833     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_3, &src_param);
1834
1835     if (mask_size > 1) {
1836         shader_addline(buffer, "vec%d(inversesqrt(%s)));\n", mask_size, src_param.param_str);
1837     } else {
1838         shader_addline(buffer, "inversesqrt(%s));\n", src_param.param_str);
1839     }
1840 }
1841
1842 /** Process signed comparison opcodes in GLSL. */
1843 static void shader_glsl_compare(const struct wined3d_shader_instruction *ins)
1844 {
1845     glsl_src_param_t src0_param;
1846     glsl_src_param_t src1_param;
1847     DWORD write_mask;
1848     unsigned int mask_size;
1849
1850     write_mask = shader_glsl_append_dst(ins->buffer, ins);
1851     mask_size = shader_glsl_get_write_mask_size(write_mask);
1852     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], write_mask, &src0_param);
1853     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], write_mask, &src1_param);
1854
1855     if (mask_size > 1) {
1856         const char *compare;
1857
1858         switch(ins->handler_idx)
1859         {
1860             case WINED3DSIH_SLT: compare = "lessThan"; break;
1861             case WINED3DSIH_SGE: compare = "greaterThanEqual"; break;
1862             default: compare = "";
1863                 FIXME("Can't handle opcode %#x\n", ins->handler_idx);
1864         }
1865
1866         shader_addline(ins->buffer, "vec%d(%s(%s, %s)));\n", mask_size, compare,
1867                 src0_param.param_str, src1_param.param_str);
1868     } else {
1869         switch(ins->handler_idx)
1870         {
1871             case WINED3DSIH_SLT:
1872                 /* Step(src0, src1) is not suitable here because if src0 == src1 SLT is supposed,
1873                  * to return 0.0 but step returns 1.0 because step is not < x
1874                  * An alternative is a bvec compare padded with an unused second component.
1875                  * step(src1 * -1.0, src0 * -1.0) is not an option because it suffers from the same
1876                  * issue. Playing with not() is not possible either because not() does not accept
1877                  * a scalar.
1878                  */
1879                 shader_addline(ins->buffer, "(%s < %s) ? 1.0 : 0.0);\n", src0_param.param_str, src1_param.param_str);
1880                 break;
1881             case WINED3DSIH_SGE:
1882                 /* Here we can use the step() function and safe a conditional */
1883                 shader_addline(ins->buffer, "step(%s, %s));\n", src1_param.param_str, src0_param.param_str);
1884                 break;
1885             default:
1886                 FIXME("Can't handle opcode %#x\n", ins->handler_idx);
1887         }
1888
1889     }
1890 }
1891
1892 /** Process CMP instruction in GLSL (dst = src0 >= 0.0 ? src1 : src2), per channel */
1893 static void shader_glsl_cmp(const struct wined3d_shader_instruction *ins)
1894 {
1895     glsl_src_param_t src0_param;
1896     glsl_src_param_t src1_param;
1897     glsl_src_param_t src2_param;
1898     DWORD write_mask, cmp_channel = 0;
1899     unsigned int i, j;
1900     char mask_char[6];
1901     BOOL temp_destination = FALSE;
1902
1903     if (shader_is_scalar(ins->src[0]))
1904     {
1905         write_mask = shader_glsl_append_dst(ins->buffer, ins);
1906
1907         shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_ALL, &src0_param);
1908         shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], write_mask, &src1_param);
1909         shader_glsl_add_src_param(ins, ins->src[2], ins->src_addr[2], write_mask, &src2_param);
1910
1911         shader_addline(ins->buffer, "%s >= 0.0 ? %s : %s);\n",
1912                        src0_param.param_str, src1_param.param_str, src2_param.param_str);
1913     } else {
1914         DWORD src0reg = ins->src[0] & WINED3DSP_REGNUM_MASK;
1915         DWORD src1reg = ins->src[1] & WINED3DSP_REGNUM_MASK;
1916         DWORD src2reg = ins->src[2] & WINED3DSP_REGNUM_MASK;
1917         DWORD src0regtype = shader_get_regtype(ins->src[0]);
1918         DWORD src1regtype = shader_get_regtype(ins->src[1]);
1919         DWORD src2regtype = shader_get_regtype(ins->src[2]);
1920         DWORD dstreg = ins->dst[0].register_idx;
1921         DWORD dstregtype = shader_get_regtype(ins->dst[0].token);
1922
1923         /* Cycle through all source0 channels */
1924         for (i=0; i<4; i++) {
1925             write_mask = 0;
1926             /* Find the destination channels which use the current source0 channel */
1927             for (j=0; j<4; j++) {
1928                 if (((ins->src[0] >> (WINED3DSP_SWIZZLE_SHIFT + 2 * j)) & 0x3) == i)
1929                 {
1930                     write_mask |= WINED3DSP_WRITEMASK_0 << j;
1931                     cmp_channel = WINED3DSP_WRITEMASK_0 << j;
1932                 }
1933             }
1934
1935             /* Splitting the cmp instruction up in multiple lines imposes a problem:
1936             * The first lines may overwrite source parameters of the following lines.
1937             * Deal with that by using a temporary destination register if needed
1938             */
1939             if((src0reg == dstreg && src0regtype == dstregtype) ||
1940             (src1reg == dstreg && src1regtype == dstregtype) ||
1941             (src2reg == dstreg && src2regtype == dstregtype)) {
1942
1943                 write_mask = shader_glsl_get_write_mask(ins->dst[0].token & (~WINED3DSP_WRITEMASK_ALL | write_mask),
1944                         mask_char);
1945                 if (!write_mask) continue;
1946                 shader_addline(ins->buffer, "tmp0%s = (", mask_char);
1947                 temp_destination = TRUE;
1948             } else {
1949                 struct wined3d_shader_dst_param dst = ins->dst[0];
1950                 dst.token &= ~WINED3DSP_WRITEMASK_ALL | write_mask;
1951                 write_mask = shader_glsl_append_dst_ext(ins->buffer, ins, &dst);
1952                 if (!write_mask) continue;
1953             }
1954
1955             shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], cmp_channel, &src0_param);
1956             shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], write_mask, &src1_param);
1957             shader_glsl_add_src_param(ins, ins->src[2], ins->src_addr[2], write_mask, &src2_param);
1958
1959             shader_addline(ins->buffer, "%s >= 0.0 ? %s : %s);\n",
1960                         src0_param.param_str, src1_param.param_str, src2_param.param_str);
1961         }
1962
1963         if(temp_destination) {
1964             shader_glsl_get_write_mask(ins->dst[0].token, mask_char);
1965             shader_glsl_append_dst(ins->buffer, ins);
1966             shader_addline(ins->buffer, "tmp0%s);\n", mask_char);
1967         }
1968     }
1969
1970 }
1971
1972 /** Process the CND opcode in GLSL (dst = (src0 > 0.5) ? src1 : src2) */
1973 /* For ps 1.1-1.3, only a single component of src0 is used. For ps 1.4
1974  * the compare is done per component of src0. */
1975 static void shader_glsl_cnd(const struct wined3d_shader_instruction *ins)
1976 {
1977     glsl_src_param_t src0_param;
1978     glsl_src_param_t src1_param;
1979     glsl_src_param_t src2_param;
1980     DWORD write_mask, cmp_channel = 0;
1981     unsigned int i, j;
1982
1983     if (ins->reg_maps->shader_version < WINED3DPS_VERSION(1, 4))
1984     {
1985         write_mask = shader_glsl_append_dst(ins->buffer, ins);
1986         shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
1987         shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], write_mask, &src1_param);
1988         shader_glsl_add_src_param(ins, ins->src[2], ins->src_addr[2], write_mask, &src2_param);
1989
1990         /* Fun: The D3DSI_COISSUE flag changes the semantic of the cnd instruction for < 1.4 shaders */
1991         if (ins->coissue)
1992         {
1993             shader_addline(ins->buffer, "%s /* COISSUE! */);\n", src1_param.param_str);
1994         } else {
1995             shader_addline(ins->buffer, "%s > 0.5 ? %s : %s);\n",
1996                     src0_param.param_str, src1_param.param_str, src2_param.param_str);
1997         }
1998         return;
1999     }
2000     /* Cycle through all source0 channels */
2001     for (i=0; i<4; i++) {
2002         struct wined3d_shader_dst_param dst;
2003         write_mask = 0;
2004         /* Find the destination channels which use the current source0 channel */
2005         for (j=0; j<4; j++) {
2006             if (((ins->src[0] >> (WINED3DSP_SWIZZLE_SHIFT + 2 * j)) & 0x3) == i)
2007             {
2008                 write_mask |= WINED3DSP_WRITEMASK_0 << j;
2009                 cmp_channel = WINED3DSP_WRITEMASK_0 << j;
2010             }
2011         }
2012         dst = ins->dst[0];
2013         dst.token &= ~WINED3DSP_WRITEMASK_ALL | write_mask;
2014         write_mask = shader_glsl_append_dst_ext(ins->buffer, ins, &dst);
2015         if (!write_mask) continue;
2016
2017         shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], cmp_channel, &src0_param);
2018         shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], write_mask, &src1_param);
2019         shader_glsl_add_src_param(ins, ins->src[2], ins->src_addr[2], write_mask, &src2_param);
2020
2021         shader_addline(ins->buffer, "%s > 0.5 ? %s : %s);\n",
2022                 src0_param.param_str, src1_param.param_str, src2_param.param_str);
2023     }
2024 }
2025
2026 /** GLSL code generation for WINED3DSIO_MAD: Multiply the first 2 opcodes, then add the last */
2027 static void shader_glsl_mad(const struct wined3d_shader_instruction *ins)
2028 {
2029     glsl_src_param_t src0_param;
2030     glsl_src_param_t src1_param;
2031     glsl_src_param_t src2_param;
2032     DWORD write_mask;
2033
2034     write_mask = shader_glsl_append_dst(ins->buffer, ins);
2035     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], write_mask, &src0_param);
2036     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], write_mask, &src1_param);
2037     shader_glsl_add_src_param(ins, ins->src[2], ins->src_addr[2], write_mask, &src2_param);
2038     shader_addline(ins->buffer, "(%s * %s) + %s);\n",
2039             src0_param.param_str, src1_param.param_str, src2_param.param_str);
2040 }
2041
2042 /** Handles transforming all WINED3DSIO_M?x? opcodes for
2043     Vertex shaders to GLSL codes */
2044 static void shader_glsl_mnxn(const struct wined3d_shader_instruction *ins)
2045 {
2046     int i;
2047     int nComponents = 0;
2048     struct wined3d_shader_dst_param tmp_dst = {0};
2049     struct wined3d_shader_instruction tmp_ins;
2050
2051     memset(&tmp_ins, 0, sizeof(tmp_ins));
2052
2053     /* Set constants for the temporary argument */
2054     tmp_ins.shader      = ins->shader;
2055     tmp_ins.buffer      = ins->buffer;
2056     tmp_ins.src[0]      = ins->src[0];
2057     tmp_ins.src_addr[0] = ins->src_addr[0];
2058     tmp_ins.src_addr[1] = ins->src_addr[1];
2059     tmp_ins.reg_maps = ins->reg_maps;
2060     tmp_ins.dst_count = 1;
2061     tmp_ins.dst = &tmp_dst;
2062     tmp_ins.src_count = 2;
2063
2064     switch(ins->handler_idx)
2065     {
2066         case WINED3DSIH_M4x4:
2067             nComponents = 4;
2068             tmp_ins.handler_idx = WINED3DSIH_DP4;
2069             break;
2070         case WINED3DSIH_M4x3:
2071             nComponents = 3;
2072             tmp_ins.handler_idx = WINED3DSIH_DP4;
2073             break;
2074         case WINED3DSIH_M3x4:
2075             nComponents = 4;
2076             tmp_ins.handler_idx = WINED3DSIH_DP3;
2077             break;
2078         case WINED3DSIH_M3x3:
2079             nComponents = 3;
2080             tmp_ins.handler_idx = WINED3DSIH_DP3;
2081             break;
2082         case WINED3DSIH_M3x2:
2083             nComponents = 2;
2084             tmp_ins.handler_idx = WINED3DSIH_DP3;
2085             break;
2086         default:
2087             break;
2088     }
2089
2090     for (i = 0; i < nComponents; ++i)
2091     {
2092         tmp_dst.register_idx = ins->dst[0].register_idx;
2093         tmp_dst.modifiers = ins->dst[0].modifiers;
2094         tmp_dst.token = ((ins->dst[0].token) & ~WINED3DSP_WRITEMASK_ALL) | (WINED3DSP_WRITEMASK_0 << i);
2095         tmp_ins.src[1] = ins->src[1] + i;
2096         shader_glsl_dot(&tmp_ins);
2097     }
2098 }
2099
2100 /**
2101     The LRP instruction performs a component-wise linear interpolation
2102     between the second and third operands using the first operand as the
2103     blend factor.  Equation:  (dst = src2 + src0 * (src1 - src2))
2104     This is equivalent to mix(src2, src1, src0);
2105 */
2106 static void shader_glsl_lrp(const struct wined3d_shader_instruction *ins)
2107 {
2108     glsl_src_param_t src0_param;
2109     glsl_src_param_t src1_param;
2110     glsl_src_param_t src2_param;
2111     DWORD write_mask;
2112
2113     write_mask = shader_glsl_append_dst(ins->buffer, ins);
2114
2115     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], write_mask, &src0_param);
2116     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], write_mask, &src1_param);
2117     shader_glsl_add_src_param(ins, ins->src[2], ins->src_addr[2], write_mask, &src2_param);
2118
2119     shader_addline(ins->buffer, "mix(%s, %s, %s));\n",
2120             src2_param.param_str, src1_param.param_str, src0_param.param_str);
2121 }
2122
2123 /** Process the WINED3DSIO_LIT instruction in GLSL:
2124  * dst.x = dst.w = 1.0
2125  * dst.y = (src0.x > 0) ? src0.x
2126  * dst.z = (src0.x > 0) ? ((src0.y > 0) ? pow(src0.y, src.w) : 0) : 0
2127  *                                        where src.w is clamped at +- 128
2128  */
2129 static void shader_glsl_lit(const struct wined3d_shader_instruction *ins)
2130 {
2131     glsl_src_param_t src0_param;
2132     glsl_src_param_t src1_param;
2133     glsl_src_param_t src3_param;
2134     char dst_mask[6];
2135
2136     shader_glsl_append_dst(ins->buffer, ins);
2137     shader_glsl_get_write_mask(ins->dst[0].token, dst_mask);
2138
2139     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
2140     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_1, &src1_param);
2141     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_3, &src3_param);
2142
2143     /* The sdk specifies the instruction like this
2144      * dst.x = 1.0;
2145      * if(src.x > 0.0) dst.y = src.x
2146      * else dst.y = 0.0.
2147      * if(src.x > 0.0 && src.y > 0.0) dst.z = pow(src.y, power);
2148      * else dst.z = 0.0;
2149      * dst.w = 1.0;
2150      *
2151      * Obviously that has quite a few conditionals in it which we don't like. So the first step is this:
2152      * dst.x = 1.0                                  ... No further explanation needed
2153      * dst.y = max(src.y, 0.0);                     ... If x < 0.0, use 0.0, otherwise x. Same as the conditional
2154      * dst.z = x > 0.0 ? pow(max(y, 0.0), p) : 0;   ... 0 ^ power is 0, and otherwise we use y anyway
2155      * dst.w = 1.0.                                 ... Nothing fancy.
2156      *
2157      * So we still have one conditional in there. So do this:
2158      * dst.z = pow(max(0.0, src.y) * step(0.0, src.x), power);
2159      *
2160      * step(0.0, x) will return 1 if src.x > 0.0, and 0 otherwise. So if y is 0 we get pow(0.0 * 1.0, power),
2161      * which sets dst.z to 0. If y > 0, but x = 0.0, we get pow(y * 0.0, power), which results in 0 too.
2162      * if both x and y are > 0, we get pow(y * 1.0, power), as it is supposed to
2163      */
2164     shader_addline(ins->buffer,
2165             "vec4(1.0, max(%s, 0.0), pow(max(0.0, %s) * step(0.0, %s), clamp(%s, -128.0, 128.0)), 1.0)%s);\n",
2166             src0_param.param_str, src1_param.param_str, src0_param.param_str, src3_param.param_str, dst_mask);
2167 }
2168
2169 /** Process the WINED3DSIO_DST instruction in GLSL:
2170  * dst.x = 1.0
2171  * dst.y = src0.x * src0.y
2172  * dst.z = src0.z
2173  * dst.w = src1.w
2174  */
2175 static void shader_glsl_dst(const struct wined3d_shader_instruction *ins)
2176 {
2177     glsl_src_param_t src0y_param;
2178     glsl_src_param_t src0z_param;
2179     glsl_src_param_t src1y_param;
2180     glsl_src_param_t src1w_param;
2181     char dst_mask[6];
2182
2183     shader_glsl_append_dst(ins->buffer, ins);
2184     shader_glsl_get_write_mask(ins->dst[0].token, dst_mask);
2185
2186     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_1, &src0y_param);
2187     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_2, &src0z_param);
2188     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], WINED3DSP_WRITEMASK_1, &src1y_param);
2189     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], WINED3DSP_WRITEMASK_3, &src1w_param);
2190
2191     shader_addline(ins->buffer, "vec4(1.0, %s * %s, %s, %s))%s;\n",
2192             src0y_param.param_str, src1y_param.param_str, src0z_param.param_str, src1w_param.param_str, dst_mask);
2193 }
2194
2195 /** Process the WINED3DSIO_SINCOS instruction in GLSL:
2196  * VS 2.0 requires that specific cosine and sine constants be passed to this instruction so the hardware
2197  * can handle it.  But, these functions are built-in for GLSL, so we can just ignore the last 2 params.
2198  *
2199  * dst.x = cos(src0.?)
2200  * dst.y = sin(src0.?)
2201  * dst.z = dst.z
2202  * dst.w = dst.w
2203  */
2204 static void shader_glsl_sincos(const struct wined3d_shader_instruction *ins)
2205 {
2206     glsl_src_param_t src0_param;
2207     DWORD write_mask;
2208
2209     write_mask = shader_glsl_append_dst(ins->buffer, ins);
2210     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
2211
2212     switch (write_mask) {
2213         case WINED3DSP_WRITEMASK_0:
2214             shader_addline(ins->buffer, "cos(%s));\n", src0_param.param_str);
2215             break;
2216
2217         case WINED3DSP_WRITEMASK_1:
2218             shader_addline(ins->buffer, "sin(%s));\n", src0_param.param_str);
2219             break;
2220
2221         case (WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1):
2222             shader_addline(ins->buffer, "vec2(cos(%s), sin(%s)));\n", src0_param.param_str, src0_param.param_str);
2223             break;
2224
2225         default:
2226             ERR("Write mask should be .x, .y or .xy\n");
2227             break;
2228     }
2229 }
2230
2231 /** Process the WINED3DSIO_LOOP instruction in GLSL:
2232  * Start a for() loop where src1.y is the initial value of aL,
2233  *  increment aL by src1.z for a total of src1.x iterations.
2234  *  Need to use a temporary variable for this operation.
2235  */
2236 /* FIXME: I don't think nested loops will work correctly this way. */
2237 static void shader_glsl_loop(const struct wined3d_shader_instruction *ins)
2238 {
2239     glsl_src_param_t src1_param;
2240     IWineD3DBaseShaderImpl *shader = (IWineD3DBaseShaderImpl *)ins->shader;
2241     DWORD regtype = shader_get_regtype(ins->src[1]);
2242     DWORD reg = ins->src[1] & WINED3DSP_REGNUM_MASK;
2243     const DWORD *control_values = NULL;
2244     const local_constant *constant;
2245
2246     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], WINED3DSP_WRITEMASK_ALL, &src1_param);
2247
2248     /* Try to hardcode the loop control parameters if possible. Direct3D 9 class hardware doesn't support real
2249      * varying indexing, but Microsoft designed this feature for Shader model 2.x+. If the loop control is
2250      * known at compile time, the GLSL compiler can unroll the loop, and replace indirect addressing with direct
2251      * addressing.
2252      */
2253     if(regtype == WINED3DSPR_CONSTINT) {
2254         LIST_FOR_EACH_ENTRY(constant, &shader->baseShader.constantsI, local_constant, entry) {
2255             if(constant->idx == reg) {
2256                 control_values = constant->value;
2257                 break;
2258             }
2259         }
2260     }
2261
2262     if(control_values) {
2263         if(control_values[2] > 0) {
2264             shader_addline(ins->buffer, "for (aL%u = %d; aL%u < (%d * %d + %d); aL%u += %d) {\n",
2265                     shader->baseShader.cur_loop_depth, control_values[1],
2266                     shader->baseShader.cur_loop_depth, control_values[0], control_values[2], control_values[1],
2267                     shader->baseShader.cur_loop_depth, control_values[2]);
2268         } else if(control_values[2] == 0) {
2269             shader_addline(ins->buffer, "for (aL%u = %d, tmpInt%u = 0; tmpInt%u < %d; tmpInt%u++) {\n",
2270                     shader->baseShader.cur_loop_depth, control_values[1], shader->baseShader.cur_loop_depth,
2271                     shader->baseShader.cur_loop_depth, control_values[0],
2272                     shader->baseShader.cur_loop_depth);
2273         } else {
2274             shader_addline(ins->buffer, "for (aL%u = %d; aL%u > (%d * %d + %d); aL%u += %d) {\n",
2275                     shader->baseShader.cur_loop_depth, control_values[1],
2276                     shader->baseShader.cur_loop_depth, control_values[0], control_values[2], control_values[1],
2277                     shader->baseShader.cur_loop_depth, control_values[2]);
2278         }
2279     } else {
2280         shader_addline(ins->buffer, "for (tmpInt%u = 0, aL%u = %s.y; tmpInt%u < %s.x; tmpInt%u++, aL%u += %s.z) {\n",
2281                 shader->baseShader.cur_loop_depth, shader->baseShader.cur_loop_regno,
2282                 src1_param.reg_name, shader->baseShader.cur_loop_depth, src1_param.reg_name,
2283                 shader->baseShader.cur_loop_depth, shader->baseShader.cur_loop_regno, src1_param.reg_name);
2284     }
2285
2286     shader->baseShader.cur_loop_depth++;
2287     shader->baseShader.cur_loop_regno++;
2288 }
2289
2290 static void shader_glsl_end(const struct wined3d_shader_instruction *ins)
2291 {
2292     IWineD3DBaseShaderImpl *shader = (IWineD3DBaseShaderImpl *)ins->shader;
2293
2294     shader_addline(ins->buffer, "}\n");
2295
2296     if (ins->handler_idx == WINED3DSIH_ENDLOOP)
2297     {
2298         shader->baseShader.cur_loop_depth--;
2299         shader->baseShader.cur_loop_regno--;
2300     }
2301
2302     if (ins->handler_idx == WINED3DSIH_ENDREP)
2303     {
2304         shader->baseShader.cur_loop_depth--;
2305     }
2306 }
2307
2308 static void shader_glsl_rep(const struct wined3d_shader_instruction *ins)
2309 {
2310     IWineD3DBaseShaderImpl *shader = (IWineD3DBaseShaderImpl *)ins->shader;
2311     glsl_src_param_t src0_param;
2312
2313     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
2314     shader_addline(ins->buffer, "for (tmpInt%d = 0; tmpInt%d < %s; tmpInt%d++) {\n",
2315             shader->baseShader.cur_loop_depth, shader->baseShader.cur_loop_depth,
2316             src0_param.param_str, shader->baseShader.cur_loop_depth);
2317     shader->baseShader.cur_loop_depth++;
2318 }
2319
2320 static void shader_glsl_if(const struct wined3d_shader_instruction *ins)
2321 {
2322     glsl_src_param_t src0_param;
2323
2324     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
2325     shader_addline(ins->buffer, "if (%s) {\n", src0_param.param_str);
2326 }
2327
2328 static void shader_glsl_ifc(const struct wined3d_shader_instruction *ins)
2329 {
2330     glsl_src_param_t src0_param;
2331     glsl_src_param_t src1_param;
2332
2333     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
2334     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], WINED3DSP_WRITEMASK_0, &src1_param);
2335
2336     shader_addline(ins->buffer, "if (%s %s %s) {\n",
2337             src0_param.param_str, shader_get_comp_op(ins->flags), src1_param.param_str);
2338 }
2339
2340 static void shader_glsl_else(const struct wined3d_shader_instruction *ins)
2341 {
2342     shader_addline(ins->buffer, "} else {\n");
2343 }
2344
2345 static void shader_glsl_break(const struct wined3d_shader_instruction *ins)
2346 {
2347     shader_addline(ins->buffer, "break;\n");
2348 }
2349
2350 /* FIXME: According to MSDN the compare is done per component. */
2351 static void shader_glsl_breakc(const struct wined3d_shader_instruction *ins)
2352 {
2353     glsl_src_param_t src0_param;
2354     glsl_src_param_t src1_param;
2355
2356     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_0, &src0_param);
2357     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], WINED3DSP_WRITEMASK_0, &src1_param);
2358
2359     shader_addline(ins->buffer, "if (%s %s %s) break;\n",
2360             src0_param.param_str, shader_get_comp_op(ins->flags), src1_param.param_str);
2361 }
2362
2363 static void shader_glsl_label(const struct wined3d_shader_instruction *ins)
2364 {
2365
2366     DWORD snum = (ins->src[0]) & WINED3DSP_REGNUM_MASK;
2367     shader_addline(ins->buffer, "}\n");
2368     shader_addline(ins->buffer, "void subroutine%u () {\n",  snum);
2369 }
2370
2371 static void shader_glsl_call(const struct wined3d_shader_instruction *ins)
2372 {
2373     DWORD snum = (ins->src[0]) & WINED3DSP_REGNUM_MASK;
2374     shader_addline(ins->buffer, "subroutine%u();\n", snum);
2375 }
2376
2377 static void shader_glsl_callnz(const struct wined3d_shader_instruction *ins)
2378 {
2379     glsl_src_param_t src1_param;
2380
2381     DWORD snum = (ins->src[0]) & WINED3DSP_REGNUM_MASK;
2382     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], WINED3DSP_WRITEMASK_0, &src1_param);
2383     shader_addline(ins->buffer, "if (%s) subroutine%u();\n", src1_param.param_str, snum);
2384 }
2385
2386 /*********************************************
2387  * Pixel Shader Specific Code begins here
2388  ********************************************/
2389 static void pshader_glsl_tex(const struct wined3d_shader_instruction *ins)
2390 {
2391     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)ins->shader;
2392     IWineD3DDeviceImpl* deviceImpl = (IWineD3DDeviceImpl*) This->baseShader.device;
2393     DWORD shader_version = ins->reg_maps->shader_version;
2394     glsl_sample_function_t sample_function;
2395     DWORD sample_flags = 0;
2396     DWORD sampler_type;
2397     DWORD sampler_idx;
2398     DWORD mask = 0, swizzle;
2399
2400     /* 1.0-1.4: Use destination register as sampler source.
2401      * 2.0+: Use provided sampler source. */
2402     if (shader_version < WINED3DPS_VERSION(2,0)) sampler_idx = ins->dst[0].register_idx;
2403     else sampler_idx = ins->src[1] & WINED3DSP_REGNUM_MASK;
2404     sampler_type = ins->reg_maps->samplers[sampler_idx] & WINED3DSP_TEXTURETYPE_MASK;
2405
2406     if (shader_version < WINED3DPS_VERSION(1,4))
2407     {
2408         DWORD flags = deviceImpl->stateBlock->textureState[sampler_idx][WINED3DTSS_TEXTURETRANSFORMFLAGS];
2409
2410         /* Projected cube textures don't make a lot of sense, the resulting coordinates stay the same. */
2411         if (flags & WINED3DTTFF_PROJECTED && sampler_type != WINED3DSTT_CUBE) {
2412             sample_flags |= WINED3D_GLSL_SAMPLE_PROJECTED;
2413             switch (flags & ~WINED3DTTFF_PROJECTED) {
2414                 case WINED3DTTFF_COUNT1: FIXME("WINED3DTTFF_PROJECTED with WINED3DTTFF_COUNT1?\n"); break;
2415                 case WINED3DTTFF_COUNT2: mask = WINED3DSP_WRITEMASK_1; break;
2416                 case WINED3DTTFF_COUNT3: mask = WINED3DSP_WRITEMASK_2; break;
2417                 case WINED3DTTFF_COUNT4:
2418                 case WINED3DTTFF_DISABLE: mask = WINED3DSP_WRITEMASK_3; break;
2419             }
2420         }
2421     }
2422     else if (shader_version < WINED3DPS_VERSION(2,0))
2423     {
2424         DWORD src_mod = ins->src[0] & WINED3DSP_SRCMOD_MASK;
2425
2426         if (src_mod == WINED3DSPSM_DZ) {
2427             sample_flags |= WINED3D_GLSL_SAMPLE_PROJECTED;
2428             mask = WINED3DSP_WRITEMASK_2;
2429         } else if (src_mod == WINED3DSPSM_DW) {
2430             sample_flags |= WINED3D_GLSL_SAMPLE_PROJECTED;
2431             mask = WINED3DSP_WRITEMASK_3;
2432         }
2433     } else {
2434         if (ins->flags & WINED3DSI_TEXLD_PROJECT)
2435         {
2436             /* ps 2.0 texldp instruction always divides by the fourth component. */
2437             sample_flags |= WINED3D_GLSL_SAMPLE_PROJECTED;
2438             mask = WINED3DSP_WRITEMASK_3;
2439         }
2440     }
2441
2442     if(deviceImpl->stateBlock->textures[sampler_idx] &&
2443        IWineD3DBaseTexture_GetTextureDimensions(deviceImpl->stateBlock->textures[sampler_idx]) == GL_TEXTURE_RECTANGLE_ARB) {
2444         sample_flags |= WINED3D_GLSL_SAMPLE_RECT;
2445     }
2446
2447     shader_glsl_get_sample_function(sampler_type, sample_flags, &sample_function);
2448     mask |= sample_function.coord_mask;
2449
2450     if (shader_version < WINED3DPS_VERSION(2,0)) swizzle = WINED3DVS_NOSWIZZLE;
2451     else swizzle = ins->src[1] & WINED3DSP_SWIZZLE_MASK;
2452
2453     /* 1.0-1.3: Use destination register as coordinate source.
2454        1.4+: Use provided coordinate source register. */
2455     if (shader_version < WINED3DPS_VERSION(1,4))
2456     {
2457         char coord_mask[6];
2458         shader_glsl_get_write_mask(mask, coord_mask);
2459         shader_glsl_gen_sample_code(ins, sampler_idx, &sample_function, swizzle, NULL,
2460                 "T%u%s", sampler_idx, coord_mask);
2461     } else {
2462         glsl_src_param_t coord_param;
2463         shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], mask, &coord_param);
2464         if (ins->flags & WINED3DSI_TEXLD_BIAS)
2465         {
2466             glsl_src_param_t bias;
2467             shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_3, &bias);
2468             shader_glsl_gen_sample_code(ins, sampler_idx, &sample_function, swizzle, bias.param_str,
2469                     "%s", coord_param.param_str);
2470         } else {
2471             shader_glsl_gen_sample_code(ins, sampler_idx, &sample_function, swizzle, NULL,
2472                     "%s", coord_param.param_str);
2473         }
2474     }
2475 }
2476
2477 static void shader_glsl_texldl(const struct wined3d_shader_instruction *ins)
2478 {
2479     IWineD3DBaseShaderImpl *This = (IWineD3DBaseShaderImpl *)ins->shader;
2480     IWineD3DDeviceImpl* deviceImpl = (IWineD3DDeviceImpl*) This->baseShader.device;
2481     glsl_sample_function_t sample_function;
2482     glsl_src_param_t coord_param, lod_param;
2483     DWORD sample_flags = WINED3D_GLSL_SAMPLE_LOD;
2484     DWORD sampler_type;
2485     DWORD sampler_idx;
2486     DWORD swizzle = ins->src[1] & WINED3DSP_SWIZZLE_MASK;
2487
2488     sampler_idx = ins->src[1] & WINED3DSP_REGNUM_MASK;
2489     sampler_type = ins->reg_maps->samplers[sampler_idx] & WINED3DSP_TEXTURETYPE_MASK;
2490     if(deviceImpl->stateBlock->textures[sampler_idx] &&
2491        IWineD3DBaseTexture_GetTextureDimensions(deviceImpl->stateBlock->textures[sampler_idx]) == GL_TEXTURE_RECTANGLE_ARB) {
2492         sample_flags |= WINED3D_GLSL_SAMPLE_RECT;
2493     }
2494     shader_glsl_get_sample_function(sampler_type, sample_flags, &sample_function);
2495     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], sample_function.coord_mask, &coord_param);
2496
2497     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_3, &lod_param);
2498
2499     if (shader_is_pshader_version(ins->reg_maps->shader_version))
2500     {
2501         /* The GLSL spec claims the Lod sampling functions are only supported in vertex shaders.
2502          * However, they seem to work just fine in fragment shaders as well. */
2503         WARN("Using %s in fragment shader.\n", sample_function.name);
2504     }
2505     shader_glsl_gen_sample_code(ins, sampler_idx, &sample_function, swizzle, lod_param.param_str,
2506             "%s", coord_param.param_str);
2507 }
2508
2509 static void pshader_glsl_texcoord(const struct wined3d_shader_instruction *ins)
2510 {
2511     /* FIXME: Make this work for more than just 2D textures */
2512     SHADER_BUFFER *buffer = ins->buffer;
2513     DWORD write_mask;
2514     char dst_mask[6];
2515
2516     write_mask = shader_glsl_append_dst(ins->buffer, ins);
2517     shader_glsl_get_write_mask(write_mask, dst_mask);
2518
2519     if (ins->reg_maps->shader_version != WINED3DPS_VERSION(1,4))
2520     {
2521         DWORD reg = ins->dst[0].register_idx;
2522         shader_addline(buffer, "clamp(gl_TexCoord[%u], 0.0, 1.0)%s);\n", reg, dst_mask);
2523     } else {
2524         DWORD reg = ins->src[0] & WINED3DSP_REGNUM_MASK;
2525         DWORD src_mod = ins->src[0] & WINED3DSP_SRCMOD_MASK;
2526         char dst_swizzle[6];
2527
2528         shader_glsl_get_swizzle(ins->src[0], FALSE, write_mask, dst_swizzle);
2529
2530         if (src_mod == WINED3DSPSM_DZ) {
2531             glsl_src_param_t div_param;
2532             unsigned int mask_size = shader_glsl_get_write_mask_size(write_mask);
2533             shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_2, &div_param);
2534
2535             if (mask_size > 1) {
2536                 shader_addline(buffer, "gl_TexCoord[%u]%s / vec%d(%s));\n", reg, dst_swizzle, mask_size, div_param.param_str);
2537             } else {
2538                 shader_addline(buffer, "gl_TexCoord[%u]%s / %s);\n", reg, dst_swizzle, div_param.param_str);
2539             }
2540         } else if (src_mod == WINED3DSPSM_DW) {
2541             glsl_src_param_t div_param;
2542             unsigned int mask_size = shader_glsl_get_write_mask_size(write_mask);
2543             shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_3, &div_param);
2544
2545             if (mask_size > 1) {
2546                 shader_addline(buffer, "gl_TexCoord[%u]%s / vec%d(%s));\n", reg, dst_swizzle, mask_size, div_param.param_str);
2547             } else {
2548                 shader_addline(buffer, "gl_TexCoord[%u]%s / %s);\n", reg, dst_swizzle, div_param.param_str);
2549             }
2550         } else {
2551             shader_addline(buffer, "gl_TexCoord[%u]%s);\n", reg, dst_swizzle);
2552         }
2553     }
2554 }
2555
2556 /** Process the WINED3DSIO_TEXDP3TEX instruction in GLSL:
2557  * Take a 3-component dot product of the TexCoord[dstreg] and src,
2558  * then perform a 1D texture lookup from stage dstregnum, place into dst. */
2559 static void pshader_glsl_texdp3tex(const struct wined3d_shader_instruction *ins)
2560 {
2561     glsl_src_param_t src0_param;
2562     glsl_sample_function_t sample_function;
2563     DWORD sampler_idx = ins->dst[0].register_idx;
2564     DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
2565     DWORD sampler_type = ins->reg_maps->samplers[sampler_idx] & WINED3DSP_TEXTURETYPE_MASK;
2566     UINT mask_size;
2567
2568     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], src_mask, &src0_param);
2569
2570     /* Do I have to take care about the projected bit? I don't think so, since the dp3 returns only one
2571      * scalar, and projected sampling would require 4.
2572      *
2573      * It is a dependent read - not valid with conditional NP2 textures
2574      */
2575     shader_glsl_get_sample_function(sampler_type, 0, &sample_function);
2576     mask_size = shader_glsl_get_write_mask_size(sample_function.coord_mask);
2577
2578     switch(mask_size)
2579     {
2580         case 1:
2581             shader_glsl_gen_sample_code(ins, sampler_idx, &sample_function, WINED3DVS_NOSWIZZLE, NULL,
2582                     "dot(gl_TexCoord[%u].xyz, %s)", sampler_idx, src0_param.param_str);
2583             break;
2584
2585         case 2:
2586             shader_glsl_gen_sample_code(ins, sampler_idx, &sample_function, WINED3DVS_NOSWIZZLE, NULL,
2587                     "vec2(dot(gl_TexCoord[%u].xyz, %s), 0.0)", sampler_idx, src0_param.param_str);
2588             break;
2589
2590         case 3:
2591             shader_glsl_gen_sample_code(ins, sampler_idx, &sample_function, WINED3DVS_NOSWIZZLE, NULL,
2592                     "vec3(dot(gl_TexCoord[%u].xyz, %s), 0.0, 0.0)", sampler_idx, src0_param.param_str);
2593             break;
2594
2595         default:
2596             FIXME("Unexpected mask size %u\n", mask_size);
2597             break;
2598     }
2599 }
2600
2601 /** Process the WINED3DSIO_TEXDP3 instruction in GLSL:
2602  * Take a 3-component dot product of the TexCoord[dstreg] and src. */
2603 static void pshader_glsl_texdp3(const struct wined3d_shader_instruction *ins)
2604 {
2605     glsl_src_param_t src0_param;
2606     DWORD dstreg = ins->dst[0].register_idx;
2607     DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
2608     DWORD dst_mask;
2609     unsigned int mask_size;
2610
2611     dst_mask = shader_glsl_append_dst(ins->buffer, ins);
2612     mask_size = shader_glsl_get_write_mask_size(dst_mask);
2613     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], src_mask, &src0_param);
2614
2615     if (mask_size > 1) {
2616         shader_addline(ins->buffer, "vec%d(dot(T%u.xyz, %s)));\n", mask_size, dstreg, src0_param.param_str);
2617     } else {
2618         shader_addline(ins->buffer, "dot(T%u.xyz, %s));\n", dstreg, src0_param.param_str);
2619     }
2620 }
2621
2622 /** Process the WINED3DSIO_TEXDEPTH instruction in GLSL:
2623  * Calculate the depth as dst.x / dst.y   */
2624 static void pshader_glsl_texdepth(const struct wined3d_shader_instruction *ins)
2625 {
2626     glsl_dst_param_t dst_param;
2627
2628     shader_glsl_add_dst_param(ins, &ins->dst[0], &dst_param);
2629
2630     /* Tests show that texdepth never returns anything below 0.0, and that r5.y is clamped to 1.0.
2631      * Negative input is accepted, -0.25 / -0.5 returns 0.5. GL should clamp gl_FragDepth to [0;1], but
2632      * this doesn't always work, so clamp the results manually. Whether or not the x value is clamped at 1
2633      * too is irrelevant, since if x = 0, any y value < 1.0 (and > 1.0 is not allowed) results in a result
2634      * >= 1.0 or < 0.0
2635      */
2636     shader_addline(ins->buffer, "gl_FragDepth = clamp((%s.x / min(%s.y, 1.0)), 0.0, 1.0);\n",
2637             dst_param.reg_name, dst_param.reg_name);
2638 }
2639
2640 /** Process the WINED3DSIO_TEXM3X2DEPTH instruction in GLSL:
2641  * Last row of a 3x2 matrix multiply, use the result to calculate the depth:
2642  * Calculate tmp0.y = TexCoord[dstreg] . src.xyz;  (tmp0.x has already been calculated)
2643  * depth = (tmp0.y == 0.0) ? 1.0 : tmp0.x / tmp0.y
2644  */
2645 static void pshader_glsl_texm3x2depth(const struct wined3d_shader_instruction *ins)
2646 {
2647     DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
2648     DWORD dstreg = ins->dst[0].register_idx;
2649     glsl_src_param_t src0_param;
2650
2651     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], src_mask, &src0_param);
2652
2653     shader_addline(ins->buffer, "tmp0.y = dot(T%u.xyz, %s);\n", dstreg, src0_param.param_str);
2654     shader_addline(ins->buffer, "gl_FragDepth = (tmp0.y == 0.0) ? 1.0 : clamp(tmp0.x / tmp0.y, 0.0, 1.0);\n");
2655 }
2656
2657 /** Process the WINED3DSIO_TEXM3X2PAD instruction in GLSL
2658  * Calculate the 1st of a 2-row matrix multiplication. */
2659 static void pshader_glsl_texm3x2pad(const struct wined3d_shader_instruction *ins)
2660 {
2661     DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
2662     DWORD reg = ins->dst[0].register_idx;
2663     SHADER_BUFFER *buffer = ins->buffer;
2664     glsl_src_param_t src0_param;
2665
2666     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], src_mask, &src0_param);
2667     shader_addline(buffer, "tmp0.x = dot(T%u.xyz, %s);\n", reg, src0_param.param_str);
2668 }
2669
2670 /** Process the WINED3DSIO_TEXM3X3PAD instruction in GLSL
2671  * Calculate the 1st or 2nd row of a 3-row matrix multiplication. */
2672 static void pshader_glsl_texm3x3pad(const struct wined3d_shader_instruction *ins)
2673 {
2674     IWineD3DPixelShaderImpl *shader = (IWineD3DPixelShaderImpl *)ins->shader;
2675     DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
2676     DWORD reg = ins->dst[0].register_idx;
2677     SHADER_BUFFER *buffer = ins->buffer;
2678     SHADER_PARSE_STATE* current_state = &shader->baseShader.parse_state;
2679     glsl_src_param_t src0_param;
2680
2681     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], src_mask, &src0_param);
2682     shader_addline(buffer, "tmp0.%c = dot(T%u.xyz, %s);\n", 'x' + current_state->current_row, reg, src0_param.param_str);
2683     current_state->texcoord_w[current_state->current_row++] = reg;
2684 }
2685
2686 static void pshader_glsl_texm3x2tex(const struct wined3d_shader_instruction *ins)
2687 {
2688     DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
2689     DWORD reg = ins->dst[0].register_idx;
2690     SHADER_BUFFER *buffer = ins->buffer;
2691     glsl_src_param_t src0_param;
2692     DWORD sampler_type = ins->reg_maps->samplers[reg] & WINED3DSP_TEXTURETYPE_MASK;
2693     glsl_sample_function_t sample_function;
2694
2695     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], src_mask, &src0_param);
2696     shader_addline(buffer, "tmp0.y = dot(T%u.xyz, %s);\n", reg, src0_param.param_str);
2697
2698     shader_glsl_get_sample_function(sampler_type, 0, &sample_function);
2699
2700     /* Sample the texture using the calculated coordinates */
2701     shader_glsl_gen_sample_code(ins, reg, &sample_function, WINED3DVS_NOSWIZZLE, NULL, "tmp0.xy");
2702 }
2703
2704 /** Process the WINED3DSIO_TEXM3X3TEX instruction in GLSL
2705  * Perform the 3rd row of a 3x3 matrix multiply, then sample the texture using the calculated coordinates */
2706 static void pshader_glsl_texm3x3tex(const struct wined3d_shader_instruction *ins)
2707 {
2708     DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
2709     glsl_src_param_t src0_param;
2710     DWORD reg = ins->dst[0].register_idx;
2711     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)ins->shader;
2712     SHADER_PARSE_STATE* current_state = &This->baseShader.parse_state;
2713     DWORD sampler_type = ins->reg_maps->samplers[reg] & WINED3DSP_TEXTURETYPE_MASK;
2714     glsl_sample_function_t sample_function;
2715
2716     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], src_mask, &src0_param);
2717     shader_addline(ins->buffer, "tmp0.z = dot(T%u.xyz, %s);\n", reg, src0_param.param_str);
2718
2719     /* Dependent read, not valid with conditional NP2 */
2720     shader_glsl_get_sample_function(sampler_type, 0, &sample_function);
2721
2722     /* Sample the texture using the calculated coordinates */
2723     shader_glsl_gen_sample_code(ins, reg, &sample_function, WINED3DVS_NOSWIZZLE, NULL, "tmp0.xyz");
2724
2725     current_state->current_row = 0;
2726 }
2727
2728 /** Process the WINED3DSIO_TEXM3X3 instruction in GLSL
2729  * Perform the 3rd row of a 3x3 matrix multiply */
2730 static void pshader_glsl_texm3x3(const struct wined3d_shader_instruction *ins)
2731 {
2732     DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
2733     glsl_src_param_t src0_param;
2734     char dst_mask[6];
2735     DWORD reg = ins->dst[0].register_idx;
2736     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)ins->shader;
2737     SHADER_PARSE_STATE* current_state = &This->baseShader.parse_state;
2738
2739     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], src_mask, &src0_param);
2740
2741     shader_glsl_append_dst(ins->buffer, ins);
2742     shader_glsl_get_write_mask(ins->dst[0].token, dst_mask);
2743     shader_addline(ins->buffer, "vec4(tmp0.xy, dot(T%u.xyz, %s), 1.0)%s);\n", reg, src0_param.param_str, dst_mask);
2744
2745     current_state->current_row = 0;
2746 }
2747
2748 /** Process the WINED3DSIO_TEXM3X3SPEC instruction in GLSL
2749  * Perform the final texture lookup based on the previous 2 3x3 matrix multiplies */
2750 static void pshader_glsl_texm3x3spec(const struct wined3d_shader_instruction *ins)
2751 {
2752     IWineD3DPixelShaderImpl *shader = (IWineD3DPixelShaderImpl *)ins->shader;
2753     DWORD reg = ins->dst[0].register_idx;
2754     glsl_src_param_t src0_param;
2755     glsl_src_param_t src1_param;
2756     SHADER_BUFFER *buffer = ins->buffer;
2757     SHADER_PARSE_STATE* current_state = &shader->baseShader.parse_state;
2758     DWORD stype = ins->reg_maps->samplers[reg] & WINED3DSP_TEXTURETYPE_MASK;
2759     DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
2760     glsl_sample_function_t sample_function;
2761
2762     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], src_mask, &src0_param);
2763     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1], src_mask, &src1_param);
2764
2765     /* Perform the last matrix multiply operation */
2766     shader_addline(buffer, "tmp0.z = dot(T%u.xyz, %s);\n", reg, src0_param.param_str);
2767     /* Reflection calculation */
2768     shader_addline(buffer, "tmp0.xyz = -reflect((%s), normalize(tmp0.xyz));\n", src1_param.param_str);
2769
2770     /* Dependent read, not valid with conditional NP2 */
2771     shader_glsl_get_sample_function(stype, 0, &sample_function);
2772
2773     /* Sample the texture */
2774     shader_glsl_gen_sample_code(ins, reg, &sample_function, WINED3DVS_NOSWIZZLE, NULL, "tmp0.xyz");
2775
2776     current_state->current_row = 0;
2777 }
2778
2779 /** Process the WINED3DSIO_TEXM3X3VSPEC instruction in GLSL
2780  * Perform the final texture lookup based on the previous 2 3x3 matrix multiplies */
2781 static void pshader_glsl_texm3x3vspec(const struct wined3d_shader_instruction *ins)
2782 {
2783     IWineD3DPixelShaderImpl *shader = (IWineD3DPixelShaderImpl *)ins->shader;
2784     DWORD reg = ins->dst[0].register_idx;
2785     SHADER_BUFFER *buffer = ins->buffer;
2786     SHADER_PARSE_STATE* current_state = &shader->baseShader.parse_state;
2787     glsl_src_param_t src0_param;
2788     DWORD src_mask = WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1 | WINED3DSP_WRITEMASK_2;
2789     DWORD sampler_type = ins->reg_maps->samplers[reg] & WINED3DSP_TEXTURETYPE_MASK;
2790     glsl_sample_function_t sample_function;
2791
2792     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], src_mask, &src0_param);
2793
2794     /* Perform the last matrix multiply operation */
2795     shader_addline(buffer, "tmp0.z = dot(vec3(T%u), vec3(%s));\n", reg, src0_param.param_str);
2796
2797     /* Construct the eye-ray vector from w coordinates */
2798     shader_addline(buffer, "tmp1.xyz = normalize(vec3(gl_TexCoord[%u].w, gl_TexCoord[%u].w, gl_TexCoord[%u].w));\n",
2799             current_state->texcoord_w[0], current_state->texcoord_w[1], reg);
2800     shader_addline(buffer, "tmp0.xyz = -reflect(tmp1.xyz, normalize(tmp0.xyz));\n");
2801
2802     /* Dependent read, not valid with conditional NP2 */
2803     shader_glsl_get_sample_function(sampler_type, 0, &sample_function);
2804
2805     /* Sample the texture using the calculated coordinates */
2806     shader_glsl_gen_sample_code(ins, reg, &sample_function, WINED3DVS_NOSWIZZLE, NULL, "tmp0.xyz");
2807
2808     current_state->current_row = 0;
2809 }
2810
2811 /** Process the WINED3DSIO_TEXBEM instruction in GLSL.
2812  * Apply a fake bump map transform.
2813  * texbem is pshader <= 1.3 only, this saves a few version checks
2814  */
2815 static void pshader_glsl_texbem(const struct wined3d_shader_instruction *ins)
2816 {
2817     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)ins->shader;
2818     IWineD3DDeviceImpl* deviceImpl = (IWineD3DDeviceImpl*) This->baseShader.device;
2819     glsl_sample_function_t sample_function;
2820     glsl_src_param_t coord_param;
2821     DWORD sampler_type;
2822     DWORD sampler_idx;
2823     DWORD mask;
2824     DWORD flags;
2825     char coord_mask[6];
2826
2827     sampler_idx = ins->dst[0].register_idx;
2828     flags = deviceImpl->stateBlock->textureState[sampler_idx][WINED3DTSS_TEXTURETRANSFORMFLAGS];
2829
2830     sampler_type = ins->reg_maps->samplers[sampler_idx] & WINED3DSP_TEXTURETYPE_MASK;
2831     /* Dependent read, not valid with conditional NP2 */
2832     shader_glsl_get_sample_function(sampler_type, 0, &sample_function);
2833     mask = sample_function.coord_mask;
2834
2835     shader_glsl_get_write_mask(mask, coord_mask);
2836
2837     /* with projective textures, texbem only divides the static texture coord, not the displacement,
2838          * so we can't let the GL handle this.
2839          */
2840     if (flags & WINED3DTTFF_PROJECTED) {
2841         DWORD div_mask=0;
2842         char coord_div_mask[3];
2843         switch (flags & ~WINED3DTTFF_PROJECTED) {
2844             case WINED3DTTFF_COUNT1: FIXME("WINED3DTTFF_PROJECTED with WINED3DTTFF_COUNT1?\n"); break;
2845             case WINED3DTTFF_COUNT2: div_mask = WINED3DSP_WRITEMASK_1; break;
2846             case WINED3DTTFF_COUNT3: div_mask = WINED3DSP_WRITEMASK_2; break;
2847             case WINED3DTTFF_COUNT4:
2848             case WINED3DTTFF_DISABLE: div_mask = WINED3DSP_WRITEMASK_3; break;
2849         }
2850         shader_glsl_get_write_mask(div_mask, coord_div_mask);
2851         shader_addline(ins->buffer, "T%u%s /= T%u%s;\n", sampler_idx, coord_mask, sampler_idx, coord_div_mask);
2852     }
2853
2854     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0],
2855             WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1, &coord_param);
2856
2857     shader_glsl_gen_sample_code(ins, sampler_idx, &sample_function, WINED3DVS_NOSWIZZLE, NULL,
2858             "T%u%s + vec4(bumpenvmat%d * %s, 0.0, 0.0)%s", sampler_idx, coord_mask, sampler_idx,
2859             coord_param.param_str, coord_mask);
2860
2861     if (ins->handler_idx == WINED3DSIH_TEXBEML)
2862     {
2863         glsl_src_param_t luminance_param;
2864         glsl_dst_param_t dst_param;
2865
2866         shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_2, &luminance_param);
2867         shader_glsl_add_dst_param(ins, &ins->dst[0], &dst_param);
2868
2869         shader_addline(ins->buffer, "%s%s *= (%s * luminancescale%d + luminanceoffset%d);\n",
2870                 dst_param.reg_name, dst_param.mask_str,
2871                 luminance_param.param_str, sampler_idx, sampler_idx);
2872     }
2873 }
2874
2875 static void pshader_glsl_bem(const struct wined3d_shader_instruction *ins)
2876 {
2877     glsl_src_param_t src0_param, src1_param;
2878     DWORD sampler_idx = ins->dst[0].register_idx;
2879
2880     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0],
2881             WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1, &src0_param);
2882     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1],
2883             WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1, &src1_param);
2884
2885     shader_glsl_append_dst(ins->buffer, ins);
2886     shader_addline(ins->buffer, "%s + bumpenvmat%d * %s);\n",
2887             src0_param.param_str, sampler_idx, src1_param.param_str);
2888 }
2889
2890 /** Process the WINED3DSIO_TEXREG2AR instruction in GLSL
2891  * Sample 2D texture at dst using the alpha & red (wx) components of src as texture coordinates */
2892 static void pshader_glsl_texreg2ar(const struct wined3d_shader_instruction *ins)
2893 {
2894     glsl_src_param_t src0_param;
2895     DWORD sampler_idx = ins->dst[0].register_idx;
2896     DWORD sampler_type = ins->reg_maps->samplers[sampler_idx] & WINED3DSP_TEXTURETYPE_MASK;
2897     glsl_sample_function_t sample_function;
2898
2899     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_ALL, &src0_param);
2900
2901     shader_glsl_get_sample_function(sampler_type, 0, &sample_function);
2902     shader_glsl_gen_sample_code(ins, sampler_idx, &sample_function, WINED3DVS_NOSWIZZLE, NULL,
2903             "%s.wx", src0_param.reg_name);
2904 }
2905
2906 /** Process the WINED3DSIO_TEXREG2GB instruction in GLSL
2907  * Sample 2D texture at dst using the green & blue (yz) components of src as texture coordinates */
2908 static void pshader_glsl_texreg2gb(const struct wined3d_shader_instruction *ins)
2909 {
2910     glsl_src_param_t src0_param;
2911     DWORD sampler_idx = ins->dst[0].register_idx;
2912     DWORD sampler_type = ins->reg_maps->samplers[sampler_idx] & WINED3DSP_TEXTURETYPE_MASK;
2913     glsl_sample_function_t sample_function;
2914
2915     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], WINED3DSP_WRITEMASK_ALL, &src0_param);
2916
2917     shader_glsl_get_sample_function(sampler_type, 0, &sample_function);
2918     shader_glsl_gen_sample_code(ins, sampler_idx, &sample_function, WINED3DVS_NOSWIZZLE, NULL,
2919             "%s.yz", src0_param.reg_name);
2920 }
2921
2922 /** Process the WINED3DSIO_TEXREG2RGB instruction in GLSL
2923  * Sample texture at dst using the rgb (xyz) components of src as texture coordinates */
2924 static void pshader_glsl_texreg2rgb(const struct wined3d_shader_instruction *ins)
2925 {
2926     glsl_src_param_t src0_param;
2927     DWORD sampler_idx = ins->dst[0].register_idx;
2928     DWORD sampler_type = ins->reg_maps->samplers[sampler_idx] & WINED3DSP_TEXTURETYPE_MASK;
2929     glsl_sample_function_t sample_function;
2930
2931     /* Dependent read, not valid with conditional NP2 */
2932     shader_glsl_get_sample_function(sampler_type, 0, &sample_function);
2933     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0], sample_function.coord_mask, &src0_param);
2934
2935     shader_glsl_gen_sample_code(ins, sampler_idx, &sample_function, WINED3DVS_NOSWIZZLE, NULL,
2936             "%s", src0_param.param_str);
2937 }
2938
2939 /** Process the WINED3DSIO_TEXKILL instruction in GLSL.
2940  * If any of the first 3 components are < 0, discard this pixel */
2941 static void pshader_glsl_texkill(const struct wined3d_shader_instruction *ins)
2942 {
2943     glsl_dst_param_t dst_param;
2944
2945     /* The argument is a destination parameter, and no writemasks are allowed */
2946     shader_glsl_add_dst_param(ins, &ins->dst[0], &dst_param);
2947     if ((ins->reg_maps->shader_version >= WINED3DPS_VERSION(2,0)))
2948     {
2949         /* 2.0 shaders compare all 4 components in texkill */
2950         shader_addline(ins->buffer, "if (any(lessThan(%s.xyzw, vec4(0.0)))) discard;\n", dst_param.reg_name);
2951     } else {
2952         /* 1.X shaders only compare the first 3 components, probably due to the nature of the texkill
2953          * instruction as a tex* instruction, and phase, which kills all a / w components. Even if all
2954          * 4 components are defined, only the first 3 are used
2955          */
2956         shader_addline(ins->buffer, "if (any(lessThan(%s.xyz, vec3(0.0)))) discard;\n", dst_param.reg_name);
2957     }
2958 }
2959
2960 /** Process the WINED3DSIO_DP2ADD instruction in GLSL.
2961  * dst = dot2(src0, src1) + src2 */
2962 static void pshader_glsl_dp2add(const struct wined3d_shader_instruction *ins)
2963 {
2964     glsl_src_param_t src0_param;
2965     glsl_src_param_t src1_param;
2966     glsl_src_param_t src2_param;
2967     DWORD write_mask;
2968     unsigned int mask_size;
2969
2970     write_mask = shader_glsl_append_dst(ins->buffer, ins);
2971     mask_size = shader_glsl_get_write_mask_size(write_mask);
2972
2973     shader_glsl_add_src_param(ins, ins->src[0], ins->src_addr[0],
2974             WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1, &src0_param);
2975     shader_glsl_add_src_param(ins, ins->src[1], ins->src_addr[1],
2976             WINED3DSP_WRITEMASK_0 | WINED3DSP_WRITEMASK_1, &src1_param);
2977     shader_glsl_add_src_param(ins, ins->src[2], ins->src_addr[2],
2978             WINED3DSP_WRITEMASK_0, &src2_param);
2979
2980     if (mask_size > 1) {
2981         shader_addline(ins->buffer, "vec%d(dot(%s, %s) + %s));\n",
2982                 mask_size, src0_param.param_str, src1_param.param_str, src2_param.param_str);
2983     } else {
2984         shader_addline(ins->buffer, "dot(%s, %s) + %s);\n",
2985                 src0_param.param_str, src1_param.param_str, src2_param.param_str);
2986     }
2987 }
2988
2989 static void pshader_glsl_input_pack(SHADER_BUFFER* buffer, const struct semantic* semantics_in,
2990         IWineD3DPixelShader *iface, enum vertexprocessing_mode vertexprocessing)
2991 {
2992    unsigned int i;
2993    IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *) iface;
2994
2995    for (i = 0; i < MAX_REG_INPUT; i++) {
2996
2997        DWORD usage_token = semantics_in[i].usage;
2998        DWORD register_token = semantics_in[i].reg;
2999        DWORD usage, usage_idx;
3000        char reg_mask[6];
3001
3002        /* Uninitialized */
3003        if (!usage_token) continue;
3004        usage = (usage_token & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
3005        usage_idx = (usage_token & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
3006        shader_glsl_get_write_mask(register_token, reg_mask);
3007
3008        switch(usage) {
3009
3010            case WINED3DDECLUSAGE_TEXCOORD:
3011                if(usage_idx < 8 && vertexprocessing == pretransformed) {
3012                    shader_addline(buffer, "IN[%u]%s = gl_TexCoord[%u]%s;\n",
3013                                   This->input_reg_map[i], reg_mask, usage_idx, reg_mask);
3014                } else {
3015                    shader_addline(buffer, "IN[%u]%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
3016                                   This->input_reg_map[i], reg_mask, reg_mask);
3017                }
3018                break;
3019
3020            case WINED3DDECLUSAGE_COLOR:
3021                if (usage_idx == 0)
3022                    shader_addline(buffer, "IN[%u]%s = vec4(gl_Color)%s;\n",
3023                        This->input_reg_map[i], reg_mask, reg_mask);
3024                else if (usage_idx == 1)
3025                    shader_addline(buffer, "IN[%u]%s = vec4(gl_SecondaryColor)%s;\n",
3026                        This->input_reg_map[i], reg_mask, reg_mask);
3027                else
3028                    shader_addline(buffer, "IN[%u]%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
3029                        This->input_reg_map[i], reg_mask, reg_mask);
3030                break;
3031
3032            default:
3033                shader_addline(buffer, "IN[%u]%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
3034                    This->input_reg_map[i], reg_mask, reg_mask);
3035         }
3036     }
3037 }
3038
3039 /*********************************************
3040  * Vertex Shader Specific Code begins here
3041  ********************************************/
3042
3043 static void add_glsl_program_entry(struct shader_glsl_priv *priv, struct glsl_shader_prog_link *entry) {
3044     glsl_program_key_t *key;
3045
3046     key = HeapAlloc(GetProcessHeap(), 0, sizeof(glsl_program_key_t));
3047     key->vshader = entry->vshader;
3048     key->pshader = entry->pshader;
3049     key->vs_args = entry->vs_args;
3050     key->ps_args = entry->ps_args;
3051
3052     hash_table_put(priv->glsl_program_lookup, key, entry);
3053 }
3054
3055 static struct glsl_shader_prog_link *get_glsl_program_entry(struct shader_glsl_priv *priv,
3056         IWineD3DVertexShader *vshader, IWineD3DPixelShader *pshader, struct vs_compile_args *vs_args,
3057         struct ps_compile_args *ps_args) {
3058     glsl_program_key_t key;
3059
3060     key.vshader = vshader;
3061     key.pshader = pshader;
3062     key.vs_args = *vs_args;
3063     key.ps_args = *ps_args;
3064
3065     return hash_table_get(priv->glsl_program_lookup, &key);
3066 }
3067
3068 static void delete_glsl_program_entry(struct shader_glsl_priv *priv, const WineD3D_GL_Info *gl_info,
3069         struct glsl_shader_prog_link *entry)
3070 {
3071     glsl_program_key_t *key;
3072
3073     key = HeapAlloc(GetProcessHeap(), 0, sizeof(glsl_program_key_t));
3074     key->vshader = entry->vshader;
3075     key->pshader = entry->pshader;
3076     key->vs_args = entry->vs_args;
3077     key->ps_args = entry->ps_args;
3078     hash_table_remove(priv->glsl_program_lookup, key);
3079
3080     GL_EXTCALL(glDeleteObjectARB(entry->programId));
3081     if (entry->vshader) list_remove(&entry->vshader_entry);
3082     if (entry->pshader) list_remove(&entry->pshader_entry);
3083     HeapFree(GetProcessHeap(), 0, entry->vuniformF_locations);
3084     HeapFree(GetProcessHeap(), 0, entry->puniformF_locations);
3085     HeapFree(GetProcessHeap(), 0, entry);
3086 }
3087
3088 static void handle_ps3_input(SHADER_BUFFER *buffer, const struct semantic *semantics_in,
3089         const struct semantic *semantics_out, const WineD3D_GL_Info *gl_info, const DWORD *map)
3090 {
3091     unsigned int i, j;
3092     DWORD usage_token, usage_token_out;
3093     DWORD register_token, register_token_out;
3094     DWORD usage, usage_idx, usage_out, usage_idx_out;
3095     DWORD *set;
3096     DWORD in_idx;
3097     DWORD in_count = GL_LIMITS(glsl_varyings) / 4;
3098     char reg_mask[6], reg_mask_out[6];
3099     char destination[50];
3100
3101     set = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*set) * (in_count + 2));
3102
3103     if (!semantics_out) {
3104         /* Save gl_FrontColor & gl_FrontSecondaryColor before overwriting them. */
3105         shader_addline(buffer, "vec4 front_color = gl_FrontColor;\n");
3106         shader_addline(buffer, "vec4 front_secondary_color = gl_FrontSecondaryColor;\n");
3107     }
3108
3109     for(i = 0; i < MAX_REG_INPUT; i++) {
3110         usage_token = semantics_in[i].usage;
3111         if (!usage_token) continue;
3112
3113         in_idx = map[i];
3114         if (in_idx >= (in_count + 2)) {
3115             FIXME("More input varyings declared than supported, expect issues\n");
3116             continue;
3117         }
3118         else if (map[i] == ~0U)
3119         {
3120             /* Declared, but not read register */
3121             continue;
3122         }
3123
3124         if (in_idx == in_count) {
3125             sprintf(destination, "gl_FrontColor");
3126         } else if (in_idx == in_count + 1) {
3127             sprintf(destination, "gl_FrontSecondaryColor");
3128         } else {
3129             sprintf(destination, "IN[%u]", in_idx);
3130         }
3131
3132         register_token = semantics_in[i].reg;
3133
3134         usage = (usage_token & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
3135         usage_idx = (usage_token & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
3136         set[map[i]] = shader_glsl_get_write_mask(register_token, reg_mask);
3137
3138         if(!semantics_out) {
3139             switch(usage) {
3140                 case WINED3DDECLUSAGE_COLOR:
3141                     if (usage_idx == 0)
3142                         shader_addline(buffer, "%s%s = front_color%s;\n",
3143                                        destination, reg_mask, reg_mask);
3144                     else if (usage_idx == 1)
3145                         shader_addline(buffer, "%s%s = front_secondary_color%s;\n",
3146                                        destination, reg_mask, reg_mask);
3147                     else
3148                         shader_addline(buffer, "%s%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
3149                                        destination, reg_mask, reg_mask);
3150                     break;
3151
3152                 case WINED3DDECLUSAGE_TEXCOORD:
3153                     if (usage_idx < 8) {
3154                         shader_addline(buffer, "%s%s = gl_TexCoord[%u]%s;\n",
3155                                        destination, reg_mask, usage_idx, reg_mask);
3156                     } else {
3157                         shader_addline(buffer, "%s%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
3158                                        destination, reg_mask, reg_mask);
3159                     }
3160                     break;
3161
3162                 case WINED3DDECLUSAGE_FOG:
3163                     shader_addline(buffer, "%s%s = vec4(gl_FogFragCoord, 0.0, 0.0, 0.0)%s;\n",
3164                                    destination, reg_mask, reg_mask);
3165                     break;
3166
3167                 default:
3168                     shader_addline(buffer, "%s%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
3169                                    destination, reg_mask, reg_mask);
3170             }
3171         } else {
3172             BOOL found = FALSE;
3173             for(j = 0; j < MAX_REG_OUTPUT; j++) {
3174                 usage_token_out = semantics_out[j].usage;
3175                 if (!usage_token_out) continue;
3176                 register_token_out = semantics_out[j].reg;
3177
3178                 usage_out = (usage_token_out & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
3179                 usage_idx_out = (usage_token_out & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
3180                 shader_glsl_get_write_mask(register_token_out, reg_mask_out);
3181
3182                 if(usage == usage_out &&
3183                    usage_idx == usage_idx_out) {
3184                     shader_addline(buffer, "%s%s = OUT[%u]%s;\n",
3185                                    destination, reg_mask, j, reg_mask);
3186                     found = TRUE;
3187                 }
3188             }
3189             if(!found) {
3190                 shader_addline(buffer, "%s%s = vec4(0.0, 0.0, 0.0, 0.0)%s;\n",
3191                                destination, reg_mask, reg_mask);
3192             }
3193         }
3194     }
3195
3196     /* This is solely to make the compiler / linker happy and avoid warning about undefined
3197      * varyings. It shouldn't result in any real code executed on the GPU, since all read
3198      * input varyings are assigned above, if the optimizer works properly.
3199      */
3200     for(i = 0; i < in_count + 2; i++) {
3201         if(set[i] != WINED3DSP_WRITEMASK_ALL) {
3202             unsigned int size = 0;
3203             memset(reg_mask, 0, sizeof(reg_mask));
3204             if(!(set[i] & WINED3DSP_WRITEMASK_0)) {
3205                 reg_mask[size] = 'x';
3206                 size++;
3207             }
3208             if(!(set[i] & WINED3DSP_WRITEMASK_1)) {
3209                 reg_mask[size] = 'y';
3210                 size++;
3211             }
3212             if(!(set[i] & WINED3DSP_WRITEMASK_2)) {
3213                 reg_mask[size] = 'z';
3214                 size++;
3215             }
3216             if(!(set[i] & WINED3DSP_WRITEMASK_3)) {
3217                 reg_mask[size] = 'w';
3218                 size++;
3219             }
3220
3221             if (i == in_count) {
3222                 sprintf(destination, "gl_FrontColor");
3223             } else if (i == in_count + 1) {
3224                 sprintf(destination, "gl_FrontSecondaryColor");
3225             } else {
3226                 sprintf(destination, "IN[%u]", i);
3227             }
3228
3229             if (size == 1) {
3230                 shader_addline(buffer, "%s.%s = 0.0;\n", destination, reg_mask);
3231             } else {
3232                 shader_addline(buffer, "%s.%s = vec%u(0.0);\n", destination, reg_mask, size);
3233             }
3234         }
3235     }
3236
3237     HeapFree(GetProcessHeap(), 0, set);
3238 }
3239
3240 static GLhandleARB generate_param_reorder_function(IWineD3DVertexShader *vertexshader,
3241         IWineD3DPixelShader *pixelshader, const WineD3D_GL_Info *gl_info)
3242 {
3243     GLhandleARB ret = 0;
3244     IWineD3DVertexShaderImpl *vs = (IWineD3DVertexShaderImpl *) vertexshader;
3245     IWineD3DPixelShaderImpl *ps = (IWineD3DPixelShaderImpl *) pixelshader;
3246     IWineD3DDeviceImpl *device;
3247     DWORD vs_major = WINED3DSHADER_VERSION_MAJOR(vs->baseShader.reg_maps.shader_version);
3248     DWORD ps_major = ps ? WINED3DSHADER_VERSION_MAJOR(ps->baseShader.reg_maps.shader_version) : 0;
3249     unsigned int i;
3250     SHADER_BUFFER buffer;
3251     DWORD usage_token;
3252     DWORD register_token;
3253     DWORD usage, usage_idx, writemask;
3254     char reg_mask[6];
3255     const struct semantic *semantics_out, *semantics_in;
3256
3257     shader_buffer_init(&buffer);
3258
3259     shader_addline(&buffer, "#version 120\n");
3260
3261     if(vs_major < 3 && ps_major < 3) {
3262         /* That one is easy: The vertex shader writes to the builtin varyings, the pixel shader reads from them.
3263          * Take care about the texcoord .w fixup though if we're using the fixed function fragment pipeline
3264          */
3265         device = (IWineD3DDeviceImpl *) vs->baseShader.device;
3266         if((GLINFO_LOCATION).set_texcoord_w && ps_major == 0 && vs_major > 0 &&
3267             !device->frag_pipe->ffp_proj_control) {
3268             shader_addline(&buffer, "void order_ps_input() {\n");
3269             for(i = 0; i < min(8, MAX_REG_TEXCRD); i++) {
3270                 if(vs->baseShader.reg_maps.texcoord_mask[i] != 0 &&
3271                    vs->baseShader.reg_maps.texcoord_mask[i] != WINED3DSP_WRITEMASK_ALL) {
3272                     shader_addline(&buffer, "gl_TexCoord[%u].w = 1.0;\n", i);
3273                 }
3274             }
3275             shader_addline(&buffer, "}\n");
3276         } else {
3277             shader_addline(&buffer, "void order_ps_input() { /* do nothing */ }\n");
3278         }
3279     } else if(ps_major < 3 && vs_major >= 3) {
3280         /* The vertex shader writes to its own varyings, the pixel shader needs them in the builtin ones */
3281         semantics_out = vs->semantics_out;
3282
3283         shader_addline(&buffer, "void order_ps_input(in vec4 OUT[%u]) {\n", MAX_REG_OUTPUT);
3284         for(i = 0; i < MAX_REG_OUTPUT; i++) {
3285             usage_token = semantics_out[i].usage;
3286             if (!usage_token) continue;
3287             register_token = semantics_out[i].reg;
3288
3289             usage = (usage_token & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
3290             usage_idx = (usage_token & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
3291             writemask = shader_glsl_get_write_mask(register_token, reg_mask);
3292
3293             switch(usage) {
3294                 case WINED3DDECLUSAGE_COLOR:
3295                     if (usage_idx == 0)
3296                         shader_addline(&buffer, "gl_FrontColor%s = OUT[%u]%s;\n", reg_mask, i, reg_mask);
3297                     else if (usage_idx == 1)
3298                         shader_addline(&buffer, "gl_FrontSecondaryColor%s = OUT[%u]%s;\n", reg_mask, i, reg_mask);
3299                     break;
3300
3301                 case WINED3DDECLUSAGE_POSITION:
3302                     shader_addline(&buffer, "gl_Position%s = OUT[%u]%s;\n", reg_mask, i, reg_mask);
3303                     break;
3304
3305                 case WINED3DDECLUSAGE_TEXCOORD:
3306                     if (usage_idx < 8) {
3307                         if(!(GLINFO_LOCATION).set_texcoord_w || ps_major > 0) writemask |= WINED3DSP_WRITEMASK_3;
3308
3309                         shader_addline(&buffer, "gl_TexCoord[%u]%s = OUT[%u]%s;\n",
3310                                         usage_idx, reg_mask, i, reg_mask);
3311                         if(!(writemask & WINED3DSP_WRITEMASK_3)) {
3312                             shader_addline(&buffer, "gl_TexCoord[%u].w = 1.0;\n", usage_idx);
3313                         }
3314                     }
3315                     break;
3316
3317                 case WINED3DDECLUSAGE_PSIZE:
3318                     shader_addline(&buffer, "gl_PointSize = OUT[%u].x;\n", i);
3319                     break;
3320
3321                 case WINED3DDECLUSAGE_FOG:
3322                     shader_addline(&buffer, "gl_FogFragCoord = OUT[%u].%c;\n", i, reg_mask[1]);
3323                     break;
3324
3325                 default:
3326                     break;
3327             }
3328         }
3329         shader_addline(&buffer, "}\n");
3330
3331     } else if(ps_major >= 3 && vs_major >= 3) {
3332         semantics_out = vs->semantics_out;
3333         semantics_in = ps->semantics_in;
3334
3335         /* This one is tricky: a 3.0 pixel shader reads from a 3.0 vertex shader */
3336         shader_addline(&buffer, "varying vec4 IN[%u];\n", GL_LIMITS(glsl_varyings) / 4);
3337         shader_addline(&buffer, "void order_ps_input(in vec4 OUT[%u]) {\n", MAX_REG_OUTPUT);
3338
3339         /* First, sort out position and point size. Those are not passed to the pixel shader */
3340         for(i = 0; i < MAX_REG_OUTPUT; i++) {
3341             usage_token = semantics_out[i].usage;
3342             if (!usage_token) continue;
3343             register_token = semantics_out[i].reg;
3344
3345             usage = (usage_token & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
3346             usage_idx = (usage_token & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
3347             shader_glsl_get_write_mask(register_token, reg_mask);
3348
3349             switch(usage) {
3350                 case WINED3DDECLUSAGE_POSITION:
3351                     shader_addline(&buffer, "gl_Position%s = OUT[%u]%s;\n", reg_mask, i, reg_mask);
3352                     break;
3353
3354                 case WINED3DDECLUSAGE_PSIZE:
3355                     shader_addline(&buffer, "gl_PointSize = OUT[%u].x;\n", i);
3356                     break;
3357
3358                 default:
3359                     break;
3360             }
3361         }
3362
3363         /* Then, fix the pixel shader input */
3364         handle_ps3_input(&buffer, semantics_in, semantics_out, gl_info, ps->input_reg_map);
3365
3366         shader_addline(&buffer, "}\n");
3367     } else if(ps_major >= 3 && vs_major < 3) {
3368         semantics_in = ps->semantics_in;
3369
3370         shader_addline(&buffer, "varying vec4 IN[%u];\n", GL_LIMITS(glsl_varyings) / 4);
3371         shader_addline(&buffer, "void order_ps_input() {\n");
3372         /* The vertex shader wrote to the builtin varyings. There is no need to figure out position and
3373          * point size, but we depend on the optimizers kindness to find out that the pixel shader doesn't
3374          * read gl_TexCoord and gl_ColorX, otherwise we'll run out of varyings
3375          */
3376         handle_ps3_input(&buffer, semantics_in, NULL, gl_info, ps->input_reg_map);
3377         shader_addline(&buffer, "}\n");
3378     } else {
3379         ERR("Unexpected vertex and pixel shader version condition: vs: %d, ps: %d\n", vs_major, ps_major);
3380     }
3381
3382     ret = GL_EXTCALL(glCreateShaderObjectARB(GL_VERTEX_SHADER_ARB));
3383     checkGLcall("glCreateShaderObjectARB(GL_VERTEX_SHADER_ARB)");
3384     GL_EXTCALL(glShaderSourceARB(ret, 1, (const char**)&buffer.buffer, NULL));
3385     checkGLcall("glShaderSourceARB(ret, 1, &buffer.buffer, NULL)");
3386     GL_EXTCALL(glCompileShaderARB(ret));
3387     checkGLcall("glCompileShaderARB(ret)");
3388
3389     shader_buffer_free(&buffer);
3390     return ret;
3391 }
3392
3393 static void hardcode_local_constants(IWineD3DBaseShaderImpl *shader, const WineD3D_GL_Info *gl_info,
3394         GLhandleARB programId, char prefix)
3395 {
3396     const local_constant *lconst;
3397     GLint tmp_loc;
3398     const float *value;
3399     char glsl_name[8];
3400
3401     LIST_FOR_EACH_ENTRY(lconst, &shader->baseShader.constantsF, local_constant, entry) {
3402         value = (const float *)lconst->value;
3403         snprintf(glsl_name, sizeof(glsl_name), "%cLC%u", prefix, lconst->idx);
3404         tmp_loc = GL_EXTCALL(glGetUniformLocationARB(programId, glsl_name));
3405         GL_EXTCALL(glUniform4fvARB(tmp_loc, 1, value));
3406     }
3407     checkGLcall("Hardcoding local constants\n");
3408 }
3409
3410 /** Sets the GLSL program ID for the given pixel and vertex shader combination.
3411  * It sets the programId on the current StateBlock (because it should be called
3412  * inside of the DrawPrimitive() part of the render loop).
3413  *
3414  * If a program for the given combination does not exist, create one, and store
3415  * the program in the hash table.  If it creates a program, it will link the
3416  * given objects, too.
3417  */
3418 static void set_glsl_shader_program(IWineD3DDevice *iface, BOOL use_ps, BOOL use_vs) {
3419     IWineD3DDeviceImpl *This               = (IWineD3DDeviceImpl *)iface;
3420     struct shader_glsl_priv *priv          = This->shader_priv;
3421     const WineD3D_GL_Info *gl_info         = &This->adapter->gl_info;
3422     IWineD3DPixelShader  *pshader          = This->stateBlock->pixelShader;
3423     IWineD3DVertexShader *vshader          = This->stateBlock->vertexShader;
3424     struct glsl_shader_prog_link *entry    = NULL;
3425     GLhandleARB programId                  = 0;
3426     GLhandleARB reorder_shader_id          = 0;
3427     unsigned int i;
3428     char glsl_name[8];
3429     GLhandleARB vshader_id, pshader_id;
3430     struct ps_compile_args ps_compile_args;
3431     struct vs_compile_args vs_compile_args;
3432
3433     if(use_vs) {
3434         find_vs_compile_args((IWineD3DVertexShaderImpl*)This->stateBlock->vertexShader, This->stateBlock, &vs_compile_args);
3435     } else {
3436         /* FIXME: Do we really have to spend CPU cycles to generate a few zeroed bytes? */
3437         memset(&vs_compile_args, 0, sizeof(vs_compile_args));
3438     }
3439     if(use_ps) {
3440         find_ps_compile_args((IWineD3DPixelShaderImpl*)This->stateBlock->pixelShader, This->stateBlock, &ps_compile_args);
3441     } else {
3442         /* FIXME: Do we really have to spend CPU cycles to generate a few zeroed bytes? */
3443         memset(&ps_compile_args, 0, sizeof(ps_compile_args));
3444     }
3445     entry = get_glsl_program_entry(priv, vshader, pshader, &vs_compile_args, &ps_compile_args);
3446     if (entry) {
3447         priv->glsl_program = entry;
3448         return;
3449     }
3450
3451     /* If we get to this point, then no matching program exists, so we create one */
3452     programId = GL_EXTCALL(glCreateProgramObjectARB());
3453     TRACE("Created new GLSL shader program %u\n", programId);
3454
3455     /* Create the entry */
3456     entry = HeapAlloc(GetProcessHeap(), 0, sizeof(struct glsl_shader_prog_link));
3457     entry->programId = programId;
3458     entry->vshader = vshader;
3459     entry->pshader = pshader;
3460     entry->vs_args = vs_compile_args;
3461     entry->ps_args = ps_compile_args;
3462     entry->constant_version = 0;
3463     /* Add the hash table entry */
3464     add_glsl_program_entry(priv, entry);
3465
3466     /* Set the current program */
3467     priv->glsl_program = entry;
3468
3469     if(use_vs) {
3470         vshader_id = find_gl_vshader((IWineD3DVertexShaderImpl *) vshader, &vs_compile_args);
3471     } else {
3472         vshader_id = 0;
3473     }
3474
3475     /* Attach GLSL vshader */
3476     if (vshader_id) {
3477         const unsigned int max_attribs = 16;   /* TODO: Will this always be the case? It is at the moment... */
3478         char tmp_name[10];
3479
3480         reorder_shader_id = generate_param_reorder_function(vshader, pshader, gl_info);
3481         TRACE("Attaching GLSL shader object %u to program %u\n", reorder_shader_id, programId);
3482         GL_EXTCALL(glAttachObjectARB(programId, reorder_shader_id));
3483         checkGLcall("glAttachObjectARB");
3484         /* Flag the reorder function for deletion, then it will be freed automatically when the program
3485          * is destroyed
3486          */
3487         GL_EXTCALL(glDeleteObjectARB(reorder_shader_id));
3488
3489         TRACE("Attaching GLSL shader object %u to program %u\n", vshader_id, programId);
3490         GL_EXTCALL(glAttachObjectARB(programId, vshader_id));
3491         checkGLcall("glAttachObjectARB");
3492
3493         /* Bind vertex attributes to a corresponding index number to match
3494          * the same index numbers as ARB_vertex_programs (makes loading
3495          * vertex attributes simpler).  With this method, we can use the
3496          * exact same code to load the attributes later for both ARB and
3497          * GLSL shaders.
3498          *
3499          * We have to do this here because we need to know the Program ID
3500          * in order to make the bindings work, and it has to be done prior
3501          * to linking the GLSL program. */
3502         for (i = 0; i < max_attribs; ++i) {
3503             if (((IWineD3DBaseShaderImpl*)vshader)->baseShader.reg_maps.attributes[i]) {
3504                 snprintf(tmp_name, sizeof(tmp_name), "attrib%i", i);
3505                 GL_EXTCALL(glBindAttribLocationARB(programId, i, tmp_name));
3506             }
3507         }
3508         checkGLcall("glBindAttribLocationARB");
3509
3510         list_add_head(&((IWineD3DBaseShaderImpl *)vshader)->baseShader.linked_programs, &entry->vshader_entry);
3511     }
3512
3513     if(use_ps) {
3514         pshader_id = find_gl_pshader((IWineD3DPixelShaderImpl *) pshader, &ps_compile_args);
3515     } else {
3516         pshader_id = 0;
3517     }
3518
3519     /* Attach GLSL pshader */
3520     if (pshader_id) {
3521         TRACE("Attaching GLSL shader object %u to program %u\n", pshader_id, programId);
3522         GL_EXTCALL(glAttachObjectARB(programId, pshader_id));
3523         checkGLcall("glAttachObjectARB");
3524
3525         list_add_head(&((IWineD3DBaseShaderImpl *)pshader)->baseShader.linked_programs, &entry->pshader_entry);
3526     }
3527
3528     /* Link the program */
3529     TRACE("Linking GLSL shader program %u\n", programId);
3530     GL_EXTCALL(glLinkProgramARB(programId));
3531     print_glsl_info_log(&GLINFO_LOCATION, programId);
3532
3533     entry->vuniformF_locations = HeapAlloc(GetProcessHeap(), 0, sizeof(GLhandleARB) * GL_LIMITS(vshader_constantsF));
3534     for (i = 0; i < GL_LIMITS(vshader_constantsF); ++i) {
3535         snprintf(glsl_name, sizeof(glsl_name), "VC[%i]", i);
3536         entry->vuniformF_locations[i] = GL_EXTCALL(glGetUniformLocationARB(programId, glsl_name));
3537     }
3538     for (i = 0; i < MAX_CONST_I; ++i) {
3539         snprintf(glsl_name, sizeof(glsl_name), "VI[%i]", i);
3540         entry->vuniformI_locations[i] = GL_EXTCALL(glGetUniformLocationARB(programId, glsl_name));
3541     }
3542     entry->puniformF_locations = HeapAlloc(GetProcessHeap(), 0, sizeof(GLhandleARB) * GL_LIMITS(pshader_constantsF));
3543     for (i = 0; i < GL_LIMITS(pshader_constantsF); ++i) {
3544         snprintf(glsl_name, sizeof(glsl_name), "PC[%i]", i);
3545         entry->puniformF_locations[i] = GL_EXTCALL(glGetUniformLocationARB(programId, glsl_name));
3546     }
3547     for (i = 0; i < MAX_CONST_I; ++i) {
3548         snprintf(glsl_name, sizeof(glsl_name), "PI[%i]", i);
3549         entry->puniformI_locations[i] = GL_EXTCALL(glGetUniformLocationARB(programId, glsl_name));
3550     }
3551
3552     if(pshader) {
3553         for(i = 0; i < ((IWineD3DPixelShaderImpl*)pshader)->numbumpenvmatconsts; i++) {
3554             char name[32];
3555             sprintf(name, "bumpenvmat%d", ((IWineD3DPixelShaderImpl*)pshader)->bumpenvmatconst[i].texunit);
3556             entry->bumpenvmat_location[i] = GL_EXTCALL(glGetUniformLocationARB(programId, name));
3557             sprintf(name, "luminancescale%d", ((IWineD3DPixelShaderImpl*)pshader)->luminanceconst[i].texunit);
3558             entry->luminancescale_location[i] = GL_EXTCALL(glGetUniformLocationARB(programId, name));
3559             sprintf(name, "luminanceoffset%d", ((IWineD3DPixelShaderImpl*)pshader)->luminanceconst[i].texunit);
3560             entry->luminanceoffset_location[i] = GL_EXTCALL(glGetUniformLocationARB(programId, name));
3561         }
3562     }
3563
3564     if (use_ps && ps_compile_args.texrect_fixup) {
3565         char name[32];
3566         for (i = 0; i < MAX_FRAGMENT_SAMPLERS; ++i) {
3567             if (ps_compile_args.texrect_fixup & (1 << i)) {
3568                 sprintf(name, "PsamplerRectFixup%u", i);
3569                 entry->rectFixup_location[i] = GL_EXTCALL(glGetUniformLocationARB(programId, name));
3570             } else {
3571                 entry->rectFixup_location[i] = -1;
3572             }
3573         }
3574     }
3575
3576     entry->posFixup_location = GL_EXTCALL(glGetUniformLocationARB(programId, "posFixup"));
3577     entry->ycorrection_location = GL_EXTCALL(glGetUniformLocationARB(programId, "ycorrection"));
3578     checkGLcall("Find glsl program uniform locations");
3579
3580     if (pshader
3581             && WINED3DSHADER_VERSION_MAJOR(((IWineD3DPixelShaderImpl *)pshader)->baseShader.reg_maps.shader_version) >= 3
3582             && ((IWineD3DPixelShaderImpl *)pshader)->declared_in_count > GL_LIMITS(glsl_varyings) / 4)
3583     {
3584         TRACE("Shader %d needs vertex color clamping disabled\n", programId);
3585         entry->vertex_color_clamp = GL_FALSE;
3586     } else {
3587         entry->vertex_color_clamp = GL_FIXED_ONLY_ARB;
3588     }
3589
3590     /* Set the shader to allow uniform loading on it */
3591     GL_EXTCALL(glUseProgramObjectARB(programId));
3592     checkGLcall("glUseProgramObjectARB(programId)");
3593
3594     /* Load the vertex and pixel samplers now. The function that finds the mappings makes sure
3595      * that it stays the same for each vertexshader-pixelshader pair(=linked glsl program). If
3596      * a pshader with fixed function pipeline is used there are no vertex samplers, and if a
3597      * vertex shader with fixed function pixel processing is used we make sure that the card
3598      * supports enough samplers to allow the max number of vertex samplers with all possible
3599      * fixed function fragment processing setups. So once the program is linked these samplers
3600      * won't change.
3601      */
3602     if(vshader_id) {
3603         /* Load vertex shader samplers */
3604         shader_glsl_load_vsamplers(gl_info, This->texUnitMap, programId);
3605     }
3606     if(pshader_id) {
3607         /* Load pixel shader samplers */
3608         shader_glsl_load_psamplers(gl_info, This->texUnitMap, programId);
3609     }
3610
3611     /* If the local constants do not have to be loaded with the environment constants,
3612      * load them now to have them hardcoded in the GLSL program. This saves some CPU cycles
3613      * later
3614      */
3615     if(pshader && !((IWineD3DPixelShaderImpl*)pshader)->baseShader.load_local_constsF) {
3616         hardcode_local_constants((IWineD3DBaseShaderImpl *) pshader, gl_info, programId, 'P');
3617     }
3618     if(vshader && !((IWineD3DVertexShaderImpl*)vshader)->baseShader.load_local_constsF) {
3619         hardcode_local_constants((IWineD3DBaseShaderImpl *) vshader, gl_info, programId, 'V');
3620     }
3621 }
3622
3623 static GLhandleARB create_glsl_blt_shader(const WineD3D_GL_Info *gl_info, enum tex_types tex_type)
3624 {
3625     GLhandleARB program_id;
3626     GLhandleARB vshader_id, pshader_id;
3627     static const char *blt_vshader[] =
3628     {
3629         "#version 120\n"
3630         "void main(void)\n"
3631         "{\n"
3632         "    gl_Position = gl_Vertex;\n"
3633         "    gl_FrontColor = vec4(1.0);\n"
3634         "    gl_TexCoord[0] = gl_MultiTexCoord0;\n"
3635         "}\n"
3636     };
3637
3638     static const char *blt_pshaders[tex_type_count] =
3639     {
3640         /* tex_1d */
3641         NULL,
3642         /* tex_2d */
3643         "#version 120\n"
3644         "uniform sampler2D sampler;\n"
3645         "void main(void)\n"
3646         "{\n"
3647         "    gl_FragDepth = texture2D(sampler, gl_TexCoord[0].xy).x;\n"
3648         "}\n",
3649         /* tex_3d */
3650         NULL,
3651         /* tex_cube */
3652         "#version 120\n"
3653         "uniform samplerCube sampler;\n"
3654         "void main(void)\n"
3655         "{\n"
3656         "    gl_FragDepth = textureCube(sampler, gl_TexCoord[0].xyz).x;\n"
3657         "}\n",
3658         /* tex_rect */
3659         "#version 120\n"
3660         "#extension GL_ARB_texture_rectangle : enable\n"
3661         "uniform sampler2DRect sampler;\n"
3662         "void main(void)\n"
3663         "{\n"
3664         "    gl_FragDepth = texture2DRect(sampler, gl_TexCoord[0].xy).x;\n"
3665         "}\n",
3666     };
3667
3668     if (!blt_pshaders[tex_type])
3669     {
3670         FIXME("tex_type %#x not supported\n", tex_type);
3671         tex_type = tex_2d;
3672     }
3673
3674     vshader_id = GL_EXTCALL(glCreateShaderObjectARB(GL_VERTEX_SHADER_ARB));
3675     GL_EXTCALL(glShaderSourceARB(vshader_id, 1, blt_vshader, NULL));
3676     GL_EXTCALL(glCompileShaderARB(vshader_id));
3677
3678     pshader_id = GL_EXTCALL(glCreateShaderObjectARB(GL_FRAGMENT_SHADER_ARB));
3679     GL_EXTCALL(glShaderSourceARB(pshader_id, 1, &blt_pshaders[tex_type], NULL));
3680     GL_EXTCALL(glCompileShaderARB(pshader_id));
3681
3682     program_id = GL_EXTCALL(glCreateProgramObjectARB());
3683     GL_EXTCALL(glAttachObjectARB(program_id, vshader_id));
3684     GL_EXTCALL(glAttachObjectARB(program_id, pshader_id));
3685     GL_EXTCALL(glLinkProgramARB(program_id));
3686
3687     print_glsl_info_log(&GLINFO_LOCATION, program_id);
3688
3689     /* Once linked we can mark the shaders for deletion. They will be deleted once the program
3690      * is destroyed
3691      */
3692     GL_EXTCALL(glDeleteObjectARB(vshader_id));
3693     GL_EXTCALL(glDeleteObjectARB(pshader_id));
3694     return program_id;
3695 }
3696
3697 static void shader_glsl_select(IWineD3DDevice *iface, BOOL usePS, BOOL useVS) {
3698     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
3699     struct shader_glsl_priv *priv = This->shader_priv;
3700     const WineD3D_GL_Info *gl_info = &This->adapter->gl_info;
3701     GLhandleARB program_id = 0;
3702     GLenum old_vertex_color_clamp, current_vertex_color_clamp;
3703
3704     old_vertex_color_clamp = priv->glsl_program ? priv->glsl_program->vertex_color_clamp : GL_FIXED_ONLY_ARB;
3705
3706     if (useVS || usePS) set_glsl_shader_program(iface, usePS, useVS);
3707     else priv->glsl_program = NULL;
3708
3709     current_vertex_color_clamp = priv->glsl_program ? priv->glsl_program->vertex_color_clamp : GL_FIXED_ONLY_ARB;
3710
3711     if (old_vertex_color_clamp != current_vertex_color_clamp) {
3712         if (GL_SUPPORT(ARB_COLOR_BUFFER_FLOAT)) {
3713             GL_EXTCALL(glClampColorARB(GL_CLAMP_VERTEX_COLOR_ARB, current_vertex_color_clamp));
3714             checkGLcall("glClampColorARB");
3715         } else {
3716             FIXME("vertex color clamp needs to be changed, but extension not supported.\n");
3717         }
3718     }
3719
3720     program_id = priv->glsl_program ? priv->glsl_program->programId : 0;
3721     if (program_id) TRACE("Using GLSL program %u\n", program_id);
3722     GL_EXTCALL(glUseProgramObjectARB(program_id));
3723     checkGLcall("glUseProgramObjectARB");
3724 }
3725
3726 static void shader_glsl_select_depth_blt(IWineD3DDevice *iface, enum tex_types tex_type) {
3727     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
3728     const WineD3D_GL_Info *gl_info = &This->adapter->gl_info;
3729     struct shader_glsl_priv *priv = This->shader_priv;
3730     GLhandleARB *blt_program = &priv->depth_blt_program[tex_type];
3731
3732     if (!*blt_program) {
3733         GLint loc;
3734         *blt_program = create_glsl_blt_shader(gl_info, tex_type);
3735         loc = GL_EXTCALL(glGetUniformLocationARB(*blt_program, "sampler"));
3736         GL_EXTCALL(glUseProgramObjectARB(*blt_program));
3737         GL_EXTCALL(glUniform1iARB(loc, 0));
3738     } else {
3739         GL_EXTCALL(glUseProgramObjectARB(*blt_program));
3740     }
3741 }
3742
3743 static void shader_glsl_deselect_depth_blt(IWineD3DDevice *iface) {
3744     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
3745     const WineD3D_GL_Info *gl_info = &This->adapter->gl_info;
3746     struct shader_glsl_priv *priv = This->shader_priv;
3747     GLhandleARB program_id;
3748
3749     program_id = priv->glsl_program ? priv->glsl_program->programId : 0;
3750     if (program_id) TRACE("Using GLSL program %u\n", program_id);
3751
3752     GL_EXTCALL(glUseProgramObjectARB(program_id));
3753     checkGLcall("glUseProgramObjectARB");
3754 }
3755
3756 static void shader_glsl_destroy(IWineD3DBaseShader *iface) {
3757     const struct list *linked_programs;
3758     IWineD3DBaseShaderImpl *This = (IWineD3DBaseShaderImpl *) iface;
3759     IWineD3DDeviceImpl *device = (IWineD3DDeviceImpl *)This->baseShader.device;
3760     struct shader_glsl_priv *priv = device->shader_priv;
3761     const WineD3D_GL_Info *gl_info = &device->adapter->gl_info;
3762     IWineD3DPixelShaderImpl *ps = NULL;
3763     IWineD3DVertexShaderImpl *vs = NULL;
3764
3765     /* Note: Do not use QueryInterface here to find out which shader type this is because this code
3766      * can be called from IWineD3DBaseShader::Release
3767      */
3768     char pshader = shader_is_pshader_version(This->baseShader.reg_maps.shader_version);
3769
3770     if(pshader) {
3771         ps = (IWineD3DPixelShaderImpl *) This;
3772         if(ps->num_gl_shaders == 0) return;
3773         if (priv->glsl_program && (IWineD3DBaseShader *)priv->glsl_program->pshader == iface)
3774             shader_glsl_select(This->baseShader.device, FALSE, FALSE);
3775     } else {
3776         vs = (IWineD3DVertexShaderImpl *) This;
3777         if(vs->num_gl_shaders == 0) return;
3778         if (priv->glsl_program && (IWineD3DBaseShader *)priv->glsl_program->vshader == iface)
3779             shader_glsl_select(This->baseShader.device, FALSE, FALSE);
3780     }
3781
3782     linked_programs = &This->baseShader.linked_programs;
3783
3784     TRACE("Deleting linked programs\n");
3785     if (linked_programs->next) {
3786         struct glsl_shader_prog_link *entry, *entry2;
3787
3788         if(pshader) {
3789             LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, linked_programs, struct glsl_shader_prog_link, pshader_entry) {
3790                 delete_glsl_program_entry(priv, gl_info, entry);
3791             }
3792         } else {
3793             LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, linked_programs, struct glsl_shader_prog_link, vshader_entry) {
3794                 delete_glsl_program_entry(priv, gl_info, entry);
3795             }
3796         }
3797     }
3798
3799     if(pshader) {
3800         UINT i;
3801
3802         ENTER_GL();
3803         for(i = 0; i < ps->num_gl_shaders; i++) {
3804             TRACE("deleting pshader %u\n", ps->gl_shaders[i].prgId);
3805             GL_EXTCALL(glDeleteObjectARB(ps->gl_shaders[i].prgId));
3806             checkGLcall("glDeleteObjectARB");
3807         }
3808         LEAVE_GL();
3809         HeapFree(GetProcessHeap(), 0, ps->gl_shaders);
3810         ps->gl_shaders = NULL;
3811         ps->num_gl_shaders = 0;
3812         ps->shader_array_size = 0;
3813     } else {
3814         UINT i;
3815
3816         ENTER_GL();
3817         for(i = 0; i < vs->num_gl_shaders; i++) {
3818             TRACE("deleting vshader %u\n", vs->gl_shaders[i].prgId);
3819             GL_EXTCALL(glDeleteObjectARB(vs->gl_shaders[i].prgId));
3820             checkGLcall("glDeleteObjectARB");
3821         }
3822         LEAVE_GL();
3823         HeapFree(GetProcessHeap(), 0, vs->gl_shaders);
3824         vs->gl_shaders = NULL;
3825         vs->num_gl_shaders = 0;
3826         vs->shader_array_size = 0;
3827     }
3828 }
3829
3830 static unsigned int glsl_program_key_hash(const void *key)
3831 {
3832     const glsl_program_key_t *k = key;
3833
3834     unsigned int hash = ((DWORD_PTR) k->vshader) | ((DWORD_PTR) k->pshader) << 16;
3835     hash += ~(hash << 15);
3836     hash ^=  (hash >> 10);
3837     hash +=  (hash << 3);
3838     hash ^=  (hash >> 6);
3839     hash += ~(hash << 11);
3840     hash ^=  (hash >> 16);
3841
3842     return hash;
3843 }
3844
3845 static BOOL glsl_program_key_compare(const void *keya, const void *keyb)
3846 {
3847     const glsl_program_key_t *ka = keya;
3848     const glsl_program_key_t *kb = keyb;
3849
3850     return ka->vshader == kb->vshader && ka->pshader == kb->pshader &&
3851            (memcmp(&ka->ps_args, &kb->ps_args, sizeof(kb->ps_args)) == 0) &&
3852            (memcmp(&ka->vs_args, &kb->vs_args, sizeof(kb->vs_args)) == 0);
3853 }
3854
3855 static BOOL constant_heap_init(struct constant_heap *heap, unsigned int constant_count)
3856 {
3857     SIZE_T size = (constant_count + 1) * sizeof(*heap->entries) + constant_count * sizeof(*heap->positions);
3858     void *mem = HeapAlloc(GetProcessHeap(), 0, size);
3859
3860     if (!mem)
3861     {
3862         ERR("Failed to allocate memory\n");
3863         return FALSE;
3864     }
3865
3866     heap->entries = mem;
3867     heap->entries[1].version = 0;
3868     heap->positions = (unsigned int *)(heap->entries + constant_count + 1);
3869     heap->size = 1;
3870
3871     return TRUE;
3872 }
3873
3874 static void constant_heap_free(struct constant_heap *heap)
3875 {
3876     HeapFree(GetProcessHeap(), 0, heap->entries);
3877 }
3878
3879 static HRESULT shader_glsl_alloc(IWineD3DDevice *iface) {
3880     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
3881     const WineD3D_GL_Info *gl_info = &This->adapter->gl_info;
3882     struct shader_glsl_priv *priv = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(struct shader_glsl_priv));
3883     SIZE_T stack_size = wined3d_log2i(max(GL_LIMITS(vshader_constantsF), GL_LIMITS(pshader_constantsF))) + 1;
3884
3885     priv->stack = HeapAlloc(GetProcessHeap(), 0, stack_size * sizeof(*priv->stack));
3886     if (!priv->stack)
3887     {
3888         ERR("Failed to allocate memory.\n");
3889         HeapFree(GetProcessHeap(), 0, priv);
3890         return E_OUTOFMEMORY;
3891     }
3892
3893     if (!constant_heap_init(&priv->vconst_heap, GL_LIMITS(vshader_constantsF)))
3894     {
3895         ERR("Failed to initialize vertex shader constant heap\n");
3896         HeapFree(GetProcessHeap(), 0, priv->stack);
3897         HeapFree(GetProcessHeap(), 0, priv);
3898         return E_OUTOFMEMORY;
3899     }
3900
3901     if (!constant_heap_init(&priv->pconst_heap, GL_LIMITS(pshader_constantsF)))
3902     {
3903         ERR("Failed to initialize pixel shader constant heap\n");
3904         constant_heap_free(&priv->vconst_heap);
3905         HeapFree(GetProcessHeap(), 0, priv->stack);
3906         HeapFree(GetProcessHeap(), 0, priv);
3907         return E_OUTOFMEMORY;
3908     }
3909
3910     priv->glsl_program_lookup = hash_table_create(glsl_program_key_hash, glsl_program_key_compare);
3911     priv->next_constant_version = 1;
3912
3913     This->shader_priv = priv;
3914     return WINED3D_OK;
3915 }
3916
3917 static void shader_glsl_free(IWineD3DDevice *iface) {
3918     IWineD3DDeviceImpl *This = (IWineD3DDeviceImpl *)iface;
3919     const WineD3D_GL_Info *gl_info = &This->adapter->gl_info;
3920     struct shader_glsl_priv *priv = This->shader_priv;
3921     int i;
3922
3923     for (i = 0; i < tex_type_count; ++i)
3924     {
3925         if (priv->depth_blt_program[i])
3926         {
3927             GL_EXTCALL(glDeleteObjectARB(priv->depth_blt_program[i]));
3928         }
3929     }
3930
3931     hash_table_destroy(priv->glsl_program_lookup, NULL, NULL);
3932     constant_heap_free(&priv->pconst_heap);
3933     constant_heap_free(&priv->vconst_heap);
3934
3935     HeapFree(GetProcessHeap(), 0, This->shader_priv);
3936     This->shader_priv = NULL;
3937 }
3938
3939 static BOOL shader_glsl_dirty_const(IWineD3DDevice *iface) {
3940     /* TODO: GL_EXT_bindable_uniform can be used to share constants across shaders */
3941     return FALSE;
3942 }
3943
3944 static GLuint shader_glsl_generate_pshader(IWineD3DPixelShader *iface, SHADER_BUFFER *buffer, const struct ps_compile_args *args) {
3945     IWineD3DPixelShaderImpl *This = (IWineD3DPixelShaderImpl *)iface;
3946     const struct shader_reg_maps *reg_maps = &This->baseShader.reg_maps;
3947     CONST DWORD *function = This->baseShader.function;
3948     const char *fragcolor;
3949     const WineD3D_GL_Info *gl_info = &((IWineD3DDeviceImpl *)This->baseShader.device)->adapter->gl_info;
3950
3951     /* Create the hw GLSL shader object and assign it as the shader->prgId */
3952     GLhandleARB shader_obj = GL_EXTCALL(glCreateShaderObjectARB(GL_FRAGMENT_SHADER_ARB));
3953
3954     shader_addline(buffer, "#version 120\n");
3955
3956     if (GL_SUPPORT(ARB_DRAW_BUFFERS)) {
3957         shader_addline(buffer, "#extension GL_ARB_draw_buffers : enable\n");
3958     }
3959     if (GL_SUPPORT(ARB_TEXTURE_RECTANGLE)) {
3960         /* The spec says that it doesn't have to be explicitly enabled, but the nvidia
3961          * drivers write a warning if we don't do so
3962          */
3963         shader_addline(buffer, "#extension GL_ARB_texture_rectangle : enable\n");
3964     }
3965
3966     /* Base Declarations */
3967     shader_generate_glsl_declarations( (IWineD3DBaseShader*) This, reg_maps, buffer, &GLINFO_LOCATION, args);
3968
3969     /* Pack 3.0 inputs */
3970     if (reg_maps->shader_version >= WINED3DPS_VERSION(3,0) && args->vp_mode != vertexshader) {
3971         pshader_glsl_input_pack(buffer, This->semantics_in, iface, args->vp_mode);
3972     }
3973
3974     /* Base Shader Body */
3975     shader_generate_main( (IWineD3DBaseShader*) This, buffer, reg_maps, function);
3976
3977     /* Pixel shaders < 2.0 place the resulting color in R0 implicitly */
3978     if (reg_maps->shader_version < WINED3DPS_VERSION(2,0))
3979     {
3980         /* Some older cards like GeforceFX ones don't support multiple buffers, so also not gl_FragData */
3981         if(GL_SUPPORT(ARB_DRAW_BUFFERS))
3982             shader_addline(buffer, "gl_FragData[0] = R0;\n");
3983         else
3984             shader_addline(buffer, "gl_FragColor = R0;\n");
3985     }
3986
3987     if(GL_SUPPORT(ARB_DRAW_BUFFERS)) {
3988         fragcolor = "gl_FragData[0]";
3989     } else {
3990         fragcolor = "gl_FragColor";
3991     }
3992     if(args->srgb_correction) {
3993         shader_addline(buffer, "tmp0.xyz = pow(%s.xyz, vec3(%f, %f, %f)) * vec3(%f, %f, %f) - vec3(%f, %f, %f);\n",
3994                         fragcolor, srgb_pow, srgb_pow, srgb_pow, srgb_mul_high, srgb_mul_high, srgb_mul_high,
3995                         srgb_sub_high, srgb_sub_high, srgb_sub_high);
3996         shader_addline(buffer, "tmp1.xyz = %s.xyz * srgb_mul_low.xyz;\n", fragcolor);
3997         shader_addline(buffer, "%s.x = %s.x < srgb_comparison.x ? tmp1.x : tmp0.x;\n", fragcolor, fragcolor);
3998         shader_addline(buffer, "%s.y = %s.y < srgb_comparison.y ? tmp1.y : tmp0.y;\n", fragcolor, fragcolor);
3999         shader_addline(buffer, "%s.z = %s.z < srgb_comparison.z ? tmp1.z : tmp0.z;\n", fragcolor, fragcolor);
4000         shader_addline(buffer, "%s = clamp(%s, 0.0, 1.0);\n", fragcolor, fragcolor);
4001     }
4002     /* Pixel shader < 3.0 do not replace the fog stage.
4003      * This implements linear fog computation and blending.
4004      * TODO: non linear fog
4005      * NOTE: gl_Fog.start and gl_Fog.end don't hold fog start s and end e but
4006      * -1/(e-s) and e/(e-s) respectively.
4007      */
4008     if(reg_maps->shader_version < WINED3DPS_VERSION(3,0)) {
4009         switch(args->fog) {
4010             case FOG_OFF: break;
4011             case FOG_LINEAR:
4012                 shader_addline(buffer, "float fogstart = -1.0 / (gl_Fog.end - gl_Fog.start);\n");
4013                 shader_addline(buffer, "float fogend = gl_Fog.end * -fogstart;\n");
4014                 shader_addline(buffer, "float Fog = clamp(gl_FogFragCoord * fogstart + fogend, 0.0, 1.0);\n");
4015                 shader_addline(buffer, "%s.xyz = mix(gl_Fog.color.xyz, %s.xyz, Fog);\n", fragcolor, fragcolor);
4016                 break;
4017             case FOG_EXP:
4018                 /* Fog = e^(-gl_Fog.density * gl_FogFragCoord) */
4019                 shader_addline(buffer, "float Fog = exp(-gl_Fog.density * gl_FogFragCoord);\n");
4020                 shader_addline(buffer, "Fog = clamp(Fog, 0.0, 1.0);\n");
4021                 shader_addline(buffer, "%s.xyz = mix(gl_Fog.color.xyz, %s.xyz, Fog);\n", fragcolor, fragcolor);
4022                 break;
4023             case FOG_EXP2:
4024                 /* Fog = e^(-(gl_Fog.density * gl_FogFragCoord)^2) */
4025                 shader_addline(buffer, "float Fog = exp(-gl_Fog.density * gl_Fog.density * gl_FogFragCoord * gl_FogFragCoord);\n");
4026                 shader_addline(buffer, "Fog = clamp(Fog, 0.0, 1.0);\n");
4027                 shader_addline(buffer, "%s.xyz = mix(gl_Fog.color.xyz, %s.xyz, Fog);\n", fragcolor, fragcolor);
4028                 break;
4029         }
4030     }
4031
4032     shader_addline(buffer, "}\n");
4033
4034     TRACE("Compiling shader object %u\n", shader_obj);
4035     GL_EXTCALL(glShaderSourceARB(shader_obj, 1, (const char**)&buffer->buffer, NULL));
4036     GL_EXTCALL(glCompileShaderARB(shader_obj));
4037     print_glsl_info_log(&GLINFO_LOCATION, shader_obj);
4038
4039     /* Store the shader object */
4040     return shader_obj;
4041 }
4042
4043 static GLuint shader_glsl_generate_vshader(IWineD3DVertexShader *iface, SHADER_BUFFER *buffer, const struct vs_compile_args *args) {
4044     IWineD3DVertexShaderImpl *This = (IWineD3DVertexShaderImpl *)iface;
4045     const struct shader_reg_maps *reg_maps = &This->baseShader.reg_maps;
4046     CONST DWORD *function = This->baseShader.function;
4047     const WineD3D_GL_Info *gl_info = &((IWineD3DDeviceImpl *)This->baseShader.device)->adapter->gl_info;
4048
4049     /* Create the hw GLSL shader program and assign it as the shader->prgId */
4050     GLhandleARB shader_obj = GL_EXTCALL(glCreateShaderObjectARB(GL_VERTEX_SHADER_ARB));
4051
4052     shader_addline(buffer, "#version 120\n");
4053
4054     /* Base Declarations */
4055     shader_generate_glsl_declarations( (IWineD3DBaseShader*) This, reg_maps, buffer, &GLINFO_LOCATION, NULL);
4056
4057     /* Base Shader Body */
4058     shader_generate_main( (IWineD3DBaseShader*) This, buffer, reg_maps, function);
4059
4060     /* Unpack 3.0 outputs */
4061     if (reg_maps->shader_version >= WINED3DVS_VERSION(3,0)) shader_addline(buffer, "order_ps_input(OUT);\n");
4062     else shader_addline(buffer, "order_ps_input();\n");
4063
4064     /* The D3DRS_FOGTABLEMODE render state defines if the shader-generated fog coord is used
4065      * or if the fragment depth is used. If the fragment depth is used(FOGTABLEMODE != NONE),
4066      * the fog frag coord is thrown away. If the fog frag coord is used, but not written by
4067      * the shader, it is set to 0.0(fully fogged, since start = 1.0, end = 0.0)
4068      */
4069     if(args->fog_src == VS_FOG_Z) {
4070         shader_addline(buffer, "gl_FogFragCoord = gl_Position.z;\n");
4071     } else if (!reg_maps->fog) {
4072         shader_addline(buffer, "gl_FogFragCoord = 0.0;\n");
4073     }
4074
4075     /* Write the final position.
4076      *
4077      * OpenGL coordinates specify the center of the pixel while d3d coords specify
4078      * the corner. The offsets are stored in z and w in posFixup. posFixup.y contains
4079      * 1.0 or -1.0 to turn the rendering upside down for offscreen rendering. PosFixup.x
4080      * contains 1.0 to allow a mad.
4081      */
4082     shader_addline(buffer, "gl_Position.y = gl_Position.y * posFixup.y;\n");
4083     shader_addline(buffer, "gl_Position.xy += posFixup.zw * gl_Position.ww;\n");
4084
4085     /* Z coord [0;1]->[-1;1] mapping, see comment in transform_projection in state.c
4086      *
4087      * Basically we want (in homogeneous coordinates) z = z * 2 - 1. However, shaders are run
4088      * before the homogeneous divide, so we have to take the w into account: z = ((z / w) * 2 - 1) * w,
4089      * which is the same as z = z * 2 - w.
4090      */
4091     shader_addline(buffer, "gl_Position.z = gl_Position.z * 2.0 - gl_Position.w;\n");
4092
4093     shader_addline(buffer, "}\n");
4094
4095     TRACE("Compiling shader object %u\n", shader_obj);
4096     GL_EXTCALL(glShaderSourceARB(shader_obj, 1, (const char**)&buffer->buffer, NULL));
4097     GL_EXTCALL(glCompileShaderARB(shader_obj));
4098     print_glsl_info_log(&GLINFO_LOCATION, shader_obj);
4099
4100     return shader_obj;
4101 }
4102
4103 static void shader_glsl_get_caps(WINED3DDEVTYPE devtype, const WineD3D_GL_Info *gl_info, struct shader_caps *pCaps)
4104 {
4105     /* Nvidia Geforce6/7 or Ati R4xx/R5xx cards with GLSL support, support VS 3.0 but older Nvidia/Ati
4106      * models with GLSL support only support 2.0. In case of nvidia we can detect VS 2.0 support using
4107      * vs_nv_version which is based on NV_vertex_program.
4108      * For Ati cards there's no way using glsl (it abstracts the lowlevel info away) and also not
4109      * using ARB_vertex_program. It is safe to assume that when a card supports pixel shader 2.0 it
4110      * supports vertex shader 2.0 too and the way around. We can detect ps2.0 using the maximum number
4111      * of native instructions, so use that here. For more info see the pixel shader versioning code below.
4112      */
4113     if((GLINFO_LOCATION.vs_nv_version == VS_VERSION_20) || (GLINFO_LOCATION.ps_arb_max_instructions <= 512))
4114         pCaps->VertexShaderVersion = WINED3DVS_VERSION(2,0);
4115     else
4116         pCaps->VertexShaderVersion = WINED3DVS_VERSION(3,0);
4117     TRACE_(d3d_caps)("Hardware vertex shader version %d.%d enabled (GLSL)\n", (pCaps->VertexShaderVersion >> 8) & 0xff, pCaps->VertexShaderVersion & 0xff);
4118     pCaps->MaxVertexShaderConst = GL_LIMITS(vshader_constantsF);
4119
4120     /* Older DX9-class videocards (GeforceFX / Radeon >9500/X*00) only support pixel shader 2.0/2.0a/2.0b.
4121      * In OpenGL the extensions related to GLSL abstract lowlevel GL info away which is needed
4122      * to distinguish between 2.0 and 3.0 (and 2.0a/2.0b). In case of Nvidia we use their fragment
4123      * program extensions. On other hardware including ATI GL_ARB_fragment_program offers the info
4124      * in max native instructions. Intel and others also offer the info in this extension but they
4125      * don't support GLSL (at least on Windows).
4126      *
4127      * PS2.0 requires at least 96 instructions, 2.0a/2.0b go up to 512. Assume that if the number
4128      * of instructions is 512 or less we have to do with ps2.0 hardware.
4129      * NOTE: ps3.0 hardware requires 512 or more instructions but ati and nvidia offer 'enough' (1024 vs 4096) on their most basic ps3.0 hardware.
4130      */
4131     if((GLINFO_LOCATION.ps_nv_version == PS_VERSION_20) || (GLINFO_LOCATION.ps_arb_max_instructions <= 512))
4132         pCaps->PixelShaderVersion = WINED3DPS_VERSION(2,0);
4133     else
4134         pCaps->PixelShaderVersion = WINED3DPS_VERSION(3,0);
4135
4136     /* FIXME: The following line is card dependent. -8.0 to 8.0 is the
4137      * Direct3D minimum requirement.
4138      *
4139      * Both GL_ARB_fragment_program and GLSL require a "maximum representable magnitude"
4140      * of colors to be 2^10, and 2^32 for other floats. Should we use 1024 here?
4141      *
4142      * The problem is that the refrast clamps temporary results in the shader to
4143      * [-MaxValue;+MaxValue]. If the card's max value is bigger than the one we advertize here,
4144      * then applications may miss the clamping behavior. On the other hand, if it is smaller,
4145      * the shader will generate incorrect results too. Unfortunately, GL deliberately doesn't
4146      * offer a way to query this.
4147      */
4148     pCaps->PixelShader1xMaxValue = 8.0;
4149     TRACE_(d3d_caps)("Hardware pixel shader version %d.%d enabled (GLSL)\n", (pCaps->PixelShaderVersion >> 8) & 0xff, pCaps->PixelShaderVersion & 0xff);
4150 }
4151
4152 static BOOL shader_glsl_color_fixup_supported(struct color_fixup_desc fixup)
4153 {
4154     if (TRACE_ON(d3d_shader) && TRACE_ON(d3d))
4155     {
4156         TRACE("Checking support for fixup:\n");
4157         dump_color_fixup_desc(fixup);
4158     }
4159
4160     /* We support everything except YUV conversions. */
4161     if (!is_yuv_fixup(fixup))
4162     {
4163         TRACE("[OK]\n");
4164         return TRUE;
4165     }
4166
4167     TRACE("[FAILED]\n");
4168     return FALSE;
4169 }
4170
4171 static const SHADER_HANDLER shader_glsl_instruction_handler_table[WINED3DSIH_TABLE_SIZE] =
4172 {
4173     /* WINED3DSIH_ABS           */ shader_glsl_map2gl,
4174     /* WINED3DSIH_ADD           */ shader_glsl_arith,
4175     /* WINED3DSIH_BEM           */ pshader_glsl_bem,
4176     /* WINED3DSIH_BREAK         */ shader_glsl_break,
4177     /* WINED3DSIH_BREAKC        */ shader_glsl_breakc,
4178     /* WINED3DSIH_BREAKP        */ NULL,
4179     /* WINED3DSIH_CALL          */ shader_glsl_call,
4180     /* WINED3DSIH_CALLNZ        */ shader_glsl_callnz,
4181     /* WINED3DSIH_CMP           */ shader_glsl_cmp,
4182     /* WINED3DSIH_CND           */ shader_glsl_cnd,
4183     /* WINED3DSIH_CRS           */ shader_glsl_cross,
4184     /* WINED3DSIH_DCL           */ NULL,
4185     /* WINED3DSIH_DEF           */ NULL,
4186     /* WINED3DSIH_DEFB          */ NULL,
4187     /* WINED3DSIH_DEFI          */ NULL,
4188     /* WINED3DSIH_DP2ADD        */ pshader_glsl_dp2add,
4189     /* WINED3DSIH_DP3           */ shader_glsl_dot,
4190     /* WINED3DSIH_DP4           */ shader_glsl_dot,
4191     /* WINED3DSIH_DST           */ shader_glsl_dst,
4192     /* WINED3DSIH_DSX           */ shader_glsl_map2gl,
4193     /* WINED3DSIH_DSY           */ shader_glsl_map2gl,
4194     /* WINED3DSIH_ELSE          */ shader_glsl_else,
4195     /* WINED3DSIH_ENDIF         */ shader_glsl_end,
4196     /* WINED3DSIH_ENDLOOP       */ shader_glsl_end,
4197     /* WINED3DSIH_ENDREP        */ shader_glsl_end,
4198     /* WINED3DSIH_EXP           */ shader_glsl_map2gl,
4199     /* WINED3DSIH_EXPP          */ shader_glsl_expp,
4200     /* WINED3DSIH_FRC           */ shader_glsl_map2gl,
4201     /* WINED3DSIH_IF            */ shader_glsl_if,
4202     /* WINED3DSIH_IFC           */ shader_glsl_ifc,
4203     /* WINED3DSIH_LABEL         */ shader_glsl_label,
4204     /* WINED3DSIH_LIT           */ shader_glsl_lit,
4205     /* WINED3DSIH_LOG           */ shader_glsl_log,
4206     /* WINED3DSIH_LOGP          */ shader_glsl_log,
4207     /* WINED3DSIH_LOOP          */ shader_glsl_loop,
4208     /* WINED3DSIH_LRP           */ shader_glsl_lrp,
4209     /* WINED3DSIH_M3x2          */ shader_glsl_mnxn,
4210     /* WINED3DSIH_M3x3          */ shader_glsl_mnxn,
4211     /* WINED3DSIH_M3x4          */ shader_glsl_mnxn,
4212     /* WINED3DSIH_M4x3          */ shader_glsl_mnxn,
4213     /* WINED3DSIH_M4x4          */ shader_glsl_mnxn,
4214     /* WINED3DSIH_MAD           */ shader_glsl_mad,
4215     /* WINED3DSIH_MAX           */ shader_glsl_map2gl,
4216     /* WINED3DSIH_MIN           */ shader_glsl_map2gl,
4217     /* WINED3DSIH_MOV           */ shader_glsl_mov,
4218     /* WINED3DSIH_MOVA          */ shader_glsl_mov,
4219     /* WINED3DSIH_MUL           */ shader_glsl_arith,
4220     /* WINED3DSIH_NOP           */ NULL,
4221     /* WINED3DSIH_NRM           */ shader_glsl_map2gl,
4222     /* WINED3DSIH_PHASE         */ NULL,
4223     /* WINED3DSIH_POW           */ shader_glsl_pow,
4224     /* WINED3DSIH_RCP           */ shader_glsl_rcp,
4225     /* WINED3DSIH_REP           */ shader_glsl_rep,
4226     /* WINED3DSIH_RET           */ NULL,
4227     /* WINED3DSIH_RSQ           */ shader_glsl_rsq,
4228     /* WINED3DSIH_SETP          */ NULL,
4229     /* WINED3DSIH_SGE           */ shader_glsl_compare,
4230     /* WINED3DSIH_SGN           */ shader_glsl_map2gl,
4231     /* WINED3DSIH_SINCOS        */ shader_glsl_sincos,
4232     /* WINED3DSIH_SLT           */ shader_glsl_compare,
4233     /* WINED3DSIH_SUB           */ shader_glsl_arith,
4234     /* WINED3DSIH_TEX           */ pshader_glsl_tex,
4235     /* WINED3DSIH_TEXBEM        */ pshader_glsl_texbem,
4236     /* WINED3DSIH_TEXBEML       */ pshader_glsl_texbem,
4237     /* WINED3DSIH_TEXCOORD      */ pshader_glsl_texcoord,
4238     /* WINED3DSIH_TEXDEPTH      */ pshader_glsl_texdepth,
4239     /* WINED3DSIH_TEXDP3        */ pshader_glsl_texdp3,
4240     /* WINED3DSIH_TEXDP3TEX     */ pshader_glsl_texdp3tex,
4241     /* WINED3DSIH_TEXKILL       */ pshader_glsl_texkill,
4242     /* WINED3DSIH_TEXLDD        */ NULL,
4243     /* WINED3DSIH_TEXLDL        */ shader_glsl_texldl,
4244     /* WINED3DSIH_TEXM3x2DEPTH  */ pshader_glsl_texm3x2depth,
4245     /* WINED3DSIH_TEXM3x2PAD    */ pshader_glsl_texm3x2pad,
4246     /* WINED3DSIH_TEXM3x2TEX    */ pshader_glsl_texm3x2tex,
4247     /* WINED3DSIH_TEXM3x3       */ pshader_glsl_texm3x3,
4248     /* WINED3DSIH_TEXM3x3DIFF   */ NULL,
4249     /* WINED3DSIH_TEXM3x3PAD    */ pshader_glsl_texm3x3pad,
4250     /* WINED3DSIH_TEXM3x3SPEC   */ pshader_glsl_texm3x3spec,
4251     /* WINED3DSIH_TEXM3x3TEX    */ pshader_glsl_texm3x3tex,
4252     /* WINED3DSIH_TEXM3x3VSPEC  */ pshader_glsl_texm3x3vspec,
4253     /* WINED3DSIH_TEXREG2AR     */ pshader_glsl_texreg2ar,
4254     /* WINED3DSIH_TEXREG2GB     */ pshader_glsl_texreg2gb,
4255     /* WINED3DSIH_TEXREG2RGB    */ pshader_glsl_texreg2rgb,
4256 };
4257
4258 const shader_backend_t glsl_shader_backend = {
4259     shader_glsl_instruction_handler_table,
4260     shader_glsl_select,
4261     shader_glsl_select_depth_blt,
4262     shader_glsl_deselect_depth_blt,
4263     shader_glsl_update_float_vertex_constants,
4264     shader_glsl_update_float_pixel_constants,
4265     shader_glsl_load_constants,
4266     shader_glsl_destroy,
4267     shader_glsl_alloc,
4268     shader_glsl_free,
4269     shader_glsl_dirty_const,
4270     shader_glsl_generate_pshader,
4271     shader_glsl_generate_vshader,
4272     shader_glsl_get_caps,
4273     shader_glsl_color_fixup_supported,
4274 };