git.oblomov.eu Git - wine/blob - dlls/wined3d/vertexshader.c

   1 /*
   2  * shaders implementation
   3  *
   4  * Copyright 2002-2003 Jason Edmeades
   5  * Copyright 2002-2003 Raphael Junqueira
   6  * Copyright 2004 Christian Costa
   7  * Copyright 2005 Oliver Stieber
   8  * Copyright 2006 Ivan Gyurdiev
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  23  */
  24
  25 #include "config.h"
  26
  27 #include <math.h>
  28 #include <stdio.h>
  29
  30 #include "wined3d_private.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(d3d_shader);
  33
  34 #define GLINFO_LOCATION ((IWineD3DImpl *)(((IWineD3DDeviceImpl *)This->baseShader.device)->wineD3D))->gl_info
  35
  36 /* Shader debugging - Change the following line to enable debugging of software
  37       vertex shaders                                                             */
  38 #if 0 /* Musxt not be 1 in cvs version */
  39 # define VSTRACE(A) TRACE A
  40 # define TRACE_VSVECTOR(name) TRACE( #name "=(%f, %f, %f, %f)\n", name.x, name.y, name.z, name.w)
  41 #else
  42 # define VSTRACE(A)
  43 # define TRACE_VSVECTOR(name)
  44 #endif
  45
  46 /**
  47  * DirectX9 SDK download
  48  *  http://msdn.microsoft.com/library/default.asp?url=/downloads/list/directx.asp
  49  *
  50  * Exploring D3DX
  51  *  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndrive/html/directx07162002.asp
  52  *
  53  * Using Vertex Shaders
  54  *  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dndrive/html/directx02192001.asp
  55  *
  56  * Dx9 New
  57  *  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directx9_c/directx/graphics/whatsnew.asp
  58  *
  59  * Dx9 Shaders
  60  *  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directx9_c/directx/graphics/reference/Shaders/VertexShader2_0/VertexShader2_0.asp
  61  *  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directx9_c/directx/graphics/reference/Shaders/VertexShader2_0/Instructions/Instructions.asp
  62  *  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directx9_c/directx/graphics/programmingguide/GettingStarted/VertexDeclaration/VertexDeclaration.asp
  63  *  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directx9_c/directx/graphics/reference/Shaders/VertexShader3_0/VertexShader3_0.asp
  64  *
  65  * Dx9 D3DX
  66  *  http://msdn.microsoft.com/library/default.asp?url=/library/en-us/directx9_c/directx/graphics/programmingguide/advancedtopics/VertexPipe/matrixstack/matrixstack.asp
  67  *
  68  * FVF
  69  *  http://msdn.microsoft.com/library/en-us/directx9_c/directx/graphics/programmingguide/GettingStarted/VertexFormats/vformats.asp
  70  *
  71  * NVIDIA: DX8 Vertex Shader to NV Vertex Program
  72  *  http://developer.nvidia.com/view.asp?IO=vstovp
  73  *
  74  * NVIDIA: Memory Management with VAR
  75  *  http://developer.nvidia.com/view.asp?IO=var_memory_management
  76  */
  77
  78 /* TODO: Vertex and Pixel shaders are almost identicle, the only exception being the way that some of the data is looked up or the availablity of some of the data i.e. some instructions are only valid for pshaders and some for vshaders
  79 because of this the bulk of the software pipeline can be shared between pixel and vertex shaders... and it wouldn't supprise me if the programes can be cross compiled using a large body body shared code */
  80
  81 #define GLNAME_REQUIRE_GLSL  ((const char *)1)
  82
  83 CONST SHADER_OPCODE IWineD3DVertexShaderImpl_shader_ins[] = {
  84     /* This table is not order or position dependent. */
  85
  86     /* Arithmetic */
  87     {WINED3DSIO_NOP,    "nop",  "NOP", 0, 0, vshader_hw_map2gl,   NULL, 0, 0},
  88     {WINED3DSIO_MOV,    "mov",  "MOV", 1, 2, vshader_hw_map2gl,   shader_glsl_mov, 0, 0},
  89     {WINED3DSIO_MOVA,   "mova",  NULL, 1, 2, vshader_hw_map2gl,   shader_glsl_mov, WINED3DVS_VERSION(2,0), -1},
  90     {WINED3DSIO_ADD,    "add",  "ADD", 1, 3, vshader_hw_map2gl,   shader_glsl_arith, 0, 0},
  91     {WINED3DSIO_SUB,    "sub",  "SUB", 1, 3, vshader_hw_map2gl,   shader_glsl_arith, 0, 0},
  92     {WINED3DSIO_MAD,    "mad",  "MAD", 1, 4, vshader_hw_map2gl,   shader_glsl_mad, 0, 0},
  93     {WINED3DSIO_MUL,    "mul",  "MUL", 1, 3, vshader_hw_map2gl,   shader_glsl_arith, 0, 0},
  94     {WINED3DSIO_RCP,    "rcp",  "RCP", 1, 2, vshader_hw_rsq_rcp,  shader_glsl_rcp, 0, 0},
  95     {WINED3DSIO_RSQ,    "rsq",  "RSQ", 1, 2, vshader_hw_rsq_rcp,  shader_glsl_map2gl, 0, 0},
  96     {WINED3DSIO_DP3,    "dp3",  "DP3", 1, 3, vshader_hw_map2gl,   shader_glsl_dot, 0, 0},
  97     {WINED3DSIO_DP4,    "dp4",  "DP4", 1, 3, vshader_hw_map2gl,   shader_glsl_dot, 0, 0},
  98     {WINED3DSIO_MIN,    "min",  "MIN", 1, 3, vshader_hw_map2gl,   shader_glsl_map2gl, 0, 0},
  99     {WINED3DSIO_MAX,    "max",  "MAX", 1, 3, vshader_hw_map2gl,   shader_glsl_map2gl, 0, 0},
 100     {WINED3DSIO_SLT,    "slt",  "SLT", 1, 3, vshader_hw_map2gl,   shader_glsl_compare, 0, 0},
 101     {WINED3DSIO_SGE,    "sge",  "SGE", 1, 3, vshader_hw_map2gl,   shader_glsl_compare, 0, 0},
 102     {WINED3DSIO_ABS,    "abs",  "ABS", 1, 2, vshader_hw_map2gl,   shader_glsl_map2gl, 0, 0},
 103     {WINED3DSIO_EXP,    "exp",  "EX2", 1, 2, vshader_hw_map2gl,   shader_glsl_map2gl, 0, 0},
 104     {WINED3DSIO_LOG,    "log",  "LG2", 1, 2, vshader_hw_map2gl,   shader_glsl_map2gl, 0, 0},
 105     {WINED3DSIO_EXPP,   "expp", "EXP", 1, 2, vshader_hw_map2gl,   shader_glsl_expp, 0, 0},
 106     {WINED3DSIO_LOGP,   "logp", "LOG", 1, 2, vshader_hw_map2gl,   shader_glsl_map2gl, 0, 0},
 107     {WINED3DSIO_LIT,    "lit",  "LIT", 1, 2, vshader_hw_map2gl,   shader_glsl_lit, 0, 0},
 108     {WINED3DSIO_DST,    "dst",  "DST", 1, 3, vshader_hw_map2gl,   shader_glsl_dst, 0, 0},
 109     {WINED3DSIO_LRP,    "lrp",  "LRP", 1, 4, NULL,                shader_glsl_lrp, 0, 0},
 110     {WINED3DSIO_FRC,    "frc",  "FRC", 1, 2, vshader_hw_map2gl,   shader_glsl_map2gl, 0, 0},
 111     {WINED3DSIO_POW,    "pow",  "POW", 1, 3, NULL,                shader_glsl_map2gl, 0, 0},
 112     {WINED3DSIO_CRS,    "crs",  "XPS", 1, 3, NULL,                shader_glsl_cross, 0, 0},
 113     /* TODO: sng can possibly be performed a  s
 114         RCP tmp, vec
 115         MUL out, tmp, vec*/
 116     {WINED3DSIO_SGN,  "sgn",  NULL,  1, 2, NULL,                shader_glsl_map2gl, 0, 0},
 117     /* TODO: xyz normalise can be performed as VS_ARB using one temporary register,
 118         DP3 tmp , vec, vec;
 119         RSQ tmp, tmp.x;
 120         MUL vec.xyz, vec, tmp;
 121     but I think this is better because it accounts for w properly.
 122         DP3 tmp , vec, vec;
 123         RSQ tmp, tmp.x;
 124         MUL vec, vec, tmp;
 125     */
 126     {WINED3DSIO_NRM,    "nrm",      NULL, 1, 2, NULL, shader_glsl_map2gl, 0, 0},
 127     {WINED3DSIO_SINCOS, "sincos",   NULL, 1, 4, NULL, shader_glsl_sincos, WINED3DVS_VERSION(2,0), WINED3DVS_VERSION(2,1)},
 128     {WINED3DSIO_SINCOS, "sincos",   NULL, 1, 2, NULL, shader_glsl_sincos, WINED3DVS_VERSION(3,0), -1},
 129     /* Matrix */
 130     {WINED3DSIO_M4x4,   "m4x4", "undefined", 1, 3, vshader_hw_mnxn, shader_glsl_mnxn, 0, 0},
 131     {WINED3DSIO_M4x3,   "m4x3", "undefined", 1, 3, vshader_hw_mnxn, shader_glsl_mnxn, 0, 0},
 132     {WINED3DSIO_M3x4,   "m3x4", "undefined", 1, 3, vshader_hw_mnxn, shader_glsl_mnxn, 0, 0},
 133     {WINED3DSIO_M3x3,   "m3x3", "undefined", 1, 3, vshader_hw_mnxn, shader_glsl_mnxn, 0, 0},
 134     {WINED3DSIO_M3x2,   "m3x2", "undefined", 1, 3, vshader_hw_mnxn, shader_glsl_mnxn, 0, 0},
 135     /* Declare registers */
 136     {WINED3DSIO_DCL,    "dcl",      NULL,                0, 2, NULL, NULL, 0, 0},
 137     /* Constant definitions */
 138     {WINED3DSIO_DEF,    "def",      NULL,                1, 5, NULL, NULL, 0, 0},
 139     {WINED3DSIO_DEFB,   "defb",     GLNAME_REQUIRE_GLSL, 1, 2, NULL, NULL, 0, 0},
 140     {WINED3DSIO_DEFI,   "defi",     GLNAME_REQUIRE_GLSL, 1, 5, NULL, NULL, 0, 0},
 141     /* Flow control - requires GLSL or software shaders */
 142     {WINED3DSIO_REP ,   "rep",      NULL, 0, 1, NULL, shader_glsl_rep,    WINED3DVS_VERSION(2,0), -1},
 143     {WINED3DSIO_ENDREP, "endrep",   NULL, 0, 0, NULL, shader_glsl_end,    WINED3DVS_VERSION(2,0), -1},
 144     {WINED3DSIO_IF,     "if",       NULL, 0, 1, NULL, shader_glsl_if,     WINED3DVS_VERSION(2,0), -1},
 145     {WINED3DSIO_IFC,    "ifc",      NULL, 0, 2, NULL, shader_glsl_ifc,    WINED3DVS_VERSION(2,1), -1},
 146     {WINED3DSIO_ELSE,   "else",     NULL, 0, 0, NULL, shader_glsl_else,   WINED3DVS_VERSION(2,0), -1},
 147     {WINED3DSIO_ENDIF,  "endif",    NULL, 0, 0, NULL, shader_glsl_end,    WINED3DVS_VERSION(2,0), -1},
 148     {WINED3DSIO_BREAK,  "break",    NULL, 0, 0, NULL, shader_glsl_break,  WINED3DVS_VERSION(2,1), -1},
 149     {WINED3DSIO_BREAKC, "breakc",   NULL, 0, 2, NULL, shader_glsl_breakc, WINED3DVS_VERSION(2,1), -1},
 150     {WINED3DSIO_BREAKP, "breakp",   GLNAME_REQUIRE_GLSL, 0, 1, NULL, NULL, 0, 0},
 151     {WINED3DSIO_CALL,   "call",     NULL, 0, 1, NULL, shader_glsl_call,   WINED3DVS_VERSION(2,0), -1},
 152     {WINED3DSIO_CALLNZ, "callnz",   NULL, 0, 2, NULL, shader_glsl_callnz, WINED3DVS_VERSION(2,0), -1},
 153     {WINED3DSIO_LOOP,   "loop",     NULL, 0, 2, NULL, shader_glsl_loop,   WINED3DVS_VERSION(2,0), -1},
 154     {WINED3DSIO_RET,    "ret",      NULL, 0, 0, NULL, NULL,               WINED3DVS_VERSION(2,0), -1},
 155     {WINED3DSIO_ENDLOOP,"endloop",  NULL, 0, 0, NULL, shader_glsl_end,    WINED3DVS_VERSION(2,0), -1},
 156     {WINED3DSIO_LABEL,  "label",    NULL, 0, 1, NULL, shader_glsl_label,  WINED3DVS_VERSION(2,0), -1},
 157
 158     {WINED3DSIO_SETP,   "setp",     GLNAME_REQUIRE_GLSL, 1, 3, NULL, NULL, 0, 0},
 159     {WINED3DSIO_TEXLDL, "texdl",    GLNAME_REQUIRE_GLSL, 1, 3, NULL, NULL, 0, 0},
 160     {0,                 NULL,       NULL,                0, 0, NULL, NULL, 0, 0}
 161 };
 162
 163 static void vshader_set_limits(
 164       IWineD3DVertexShaderImpl *This) {
 165
 166       This->baseShader.limits.texcoord = 0;
 167       This->baseShader.limits.attributes = 16;
 168       This->baseShader.limits.packed_input = 0;
 169
 170       /* Must match D3DCAPS9.MaxVertexShaderConst: at least 256 for vs_2_0 */
 171       This->baseShader.limits.constant_float = GL_LIMITS(vshader_constantsF);
 172
 173       switch (This->baseShader.hex_version) {
 174           case WINED3DVS_VERSION(1,0):
 175           case WINED3DVS_VERSION(1,1):
 176                    This->baseShader.limits.temporary = 12;
 177                    This->baseShader.limits.constant_bool = 0;
 178                    This->baseShader.limits.constant_int = 0;
 179                    This->baseShader.limits.address = 1;
 180                    This->baseShader.limits.packed_output = 0;
 181                    This->baseShader.limits.sampler = 0;
 182                    This->baseShader.limits.label = 0;
 183                    break;
 184
 185           case WINED3DVS_VERSION(2,0):
 186           case WINED3DVS_VERSION(2,1):
 187                    This->baseShader.limits.temporary = 12;
 188                    This->baseShader.limits.constant_bool = 16;
 189                    This->baseShader.limits.constant_int = 16;
 190                    This->baseShader.limits.address = 1;
 191                    This->baseShader.limits.packed_output = 0;
 192                    This->baseShader.limits.sampler = 0;
 193                    This->baseShader.limits.label = 16;
 194                    break;
 195
 196           case WINED3DVS_VERSION(3,0):
 197                    This->baseShader.limits.temporary = 32;
 198                    This->baseShader.limits.constant_bool = 32;
 199                    This->baseShader.limits.constant_int = 32;
 200                    This->baseShader.limits.address = 1;
 201                    This->baseShader.limits.packed_output = 12;
 202                    This->baseShader.limits.sampler = 4;
 203                    This->baseShader.limits.label = 16; /* FIXME: 2048 */
 204                    break;
 205
 206           default: This->baseShader.limits.temporary = 12;
 207                    This->baseShader.limits.constant_bool = 16;
 208                    This->baseShader.limits.constant_int = 16;
 209                    This->baseShader.limits.address = 1;
 210                    This->baseShader.limits.packed_output = 0;
 211                    This->baseShader.limits.sampler = 0;
 212                    This->baseShader.limits.label = 16;
 213                    FIXME("Unrecognized vertex shader version %#x\n",
 214                        This->baseShader.hex_version);
 215       }
 216 }
 217
 218 /* This is an internal function,
 219  * used to create fake semantics for shaders
 220  * that don't have them - d3d8 shaders where the declaration
 221  * stores the register for each input
 222  */
 223 static void vshader_set_input(
 224     IWineD3DVertexShaderImpl* This,
 225     unsigned int regnum,
 226     BYTE usage, BYTE usage_idx) {
 227
 228     /* Fake usage: set reserved bit, usage, usage_idx */
 229     DWORD usage_token = (0x1 << 31) |
 230         (usage << WINED3DSP_DCL_USAGE_SHIFT) | (usage_idx << WINED3DSP_DCL_USAGEINDEX_SHIFT);
 231
 232     /* Fake register; set reserved bit, regnum, type: input, wmask: all */
 233     DWORD reg_token = (0x1 << 31) |
 234         WINED3DSP_WRITEMASK_ALL | (WINED3DSPR_INPUT << WINED3DSP_REGTYPE_SHIFT) | regnum;
 235
 236     This->semantics_in[regnum].usage = usage_token;
 237     This->semantics_in[regnum].reg = reg_token;
 238 }
 239
 240 static BOOL match_usage(BYTE usage1, BYTE usage_idx1, BYTE usage2, BYTE usage_idx2) {
 241     if (usage_idx1 != usage_idx2) return FALSE;
 242     if (usage1 == usage2) return TRUE;
 243     if (usage1 == WINED3DDECLUSAGE_POSITION && usage2 == WINED3DDECLUSAGE_POSITIONT) return TRUE;
 244     if (usage2 == WINED3DDECLUSAGE_POSITION && usage1 == WINED3DDECLUSAGE_POSITIONT) return TRUE;
 245
 246     return FALSE;
 247 }
 248
 249 BOOL vshader_get_input(
 250     IWineD3DVertexShader* iface,
 251     BYTE usage_req, BYTE usage_idx_req,
 252     unsigned int* regnum) {
 253
 254     IWineD3DVertexShaderImpl* This = (IWineD3DVertexShaderImpl*) iface;
 255     int i;
 256
 257     for (i = 0; i < MAX_ATTRIBS; i++) {
 258         DWORD usage_token = This->semantics_in[i].usage;
 259         DWORD usage = (usage_token & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
 260         DWORD usage_idx = (usage_token & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
 261
 262         if (usage_token && match_usage(usage, usage_idx, usage_req, usage_idx_req)) {
 263             *regnum = i;
 264             return TRUE;
 265         }
 266     }
 267     return FALSE;
 268 }
 269
 270 BOOL vshader_input_is_color(
 271     IWineD3DVertexShader* iface,
 272     unsigned int regnum) {
 273
 274     IWineD3DVertexShaderImpl* This = (IWineD3DVertexShaderImpl*) iface;
 275     IWineD3DDeviceImpl* deviceImpl = (IWineD3DDeviceImpl*) This->baseShader.device;
 276     IWineD3DVertexDeclarationImpl *vertexDeclaration = (IWineD3DVertexDeclarationImpl *)deviceImpl->stateBlock->vertexDecl;
 277
 278     DWORD usage_token = This->semantics_in[regnum].usage;
 279     DWORD usage = (usage_token & WINED3DSP_DCL_USAGE_MASK) >> WINED3DSP_DCL_USAGE_SHIFT;
 280     DWORD usage_idx = (usage_token & WINED3DSP_DCL_USAGEINDEX_MASK) >> WINED3DSP_DCL_USAGEINDEX_SHIFT;
 281
 282     if (vertexDeclaration) {
 283         int i;
 284         /* Find the declaration element that matches our register, then check
 285          * if it has D3DCOLOR as it's type. This works for both d3d8 and d3d9. */
 286         for (i = 0; i < vertexDeclaration->declarationWNumElements-1; ++i) {
 287             WINED3DVERTEXELEMENT *element = vertexDeclaration->pDeclarationWine + i;
 288             if (match_usage(element->Usage, element->UsageIndex, usage, usage_idx)) {
 289                 return element->Type == WINED3DDECLTYPE_D3DCOLOR;
 290             }
 291         }
 292     }
 293
 294     ERR("Either no vertexdeclaration present, or register not matched. This should never happen.\n");
 295     return FALSE;
 296 }
 297
 298 /** Generate a vertex shader string using either GL_VERTEX_PROGRAM_ARB
 299     or GLSL and send it to the card */
 300 static VOID IWineD3DVertexShaderImpl_GenerateShader(
 301     IWineD3DVertexShader *iface,
 302     shader_reg_maps* reg_maps,
 303     CONST DWORD *pFunction) {
 304
 305     IWineD3DVertexShaderImpl *This = (IWineD3DVertexShaderImpl *)iface;
 306     SHADER_BUFFER buffer;
 307
 308 #if 0 /* FIXME: Use the buffer that is held by the device, this is ok since fixups will be skipped for software shaders
 309         it also requires entering a critical section but cuts down the runtime footprint of wined3d and any memory fragmentation that may occur... */
 310     if (This->device->fixupVertexBufferSize < SHADER_PGMSIZE) {
 311         HeapFree(GetProcessHeap(), 0, This->fixupVertexBuffer);
 312         This->fixupVertexBuffer = HeapAlloc(GetProcessHeap() , 0, SHADER_PGMSIZE);
 313         This->fixupVertexBufferSize = PGMSIZE;
 314         This->fixupVertexBuffer[0] = 0;
 315     }
 316     buffer.buffer = This->device->fixupVertexBuffer;
 317 #else
 318     buffer.buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, SHADER_PGMSIZE);
 319 #endif
 320     buffer.bsize = 0;
 321     buffer.lineNo = 0;
 322     buffer.newline = TRUE;
 323
 324     if (This->baseShader.shader_mode == SHADER_GLSL) {
 325
 326         /* Create the hw GLSL shader program and assign it as the baseShader.prgId */
 327         GLhandleARB shader_obj = GL_EXTCALL(glCreateShaderObjectARB(GL_VERTEX_SHADER_ARB));
 328
 329         /* Base Declarations */
 330         shader_generate_glsl_declarations( (IWineD3DBaseShader*) This, reg_maps, &buffer, &GLINFO_LOCATION);
 331
 332         /* Base Shader Body */
 333         shader_generate_main( (IWineD3DBaseShader*) This, &buffer, reg_maps, pFunction);
 334
 335         /* Unpack 3.0 outputs */
 336         if (This->baseShader.hex_version >= WINED3DVS_VERSION(3,0))
 337             vshader_glsl_output_unpack(&buffer, This->semantics_out);
 338
 339         /* If this shader doesn't use fog copy the z coord to the fog coord so that we can use table fog */
 340         if (!reg_maps->fog)
 341             shader_addline(&buffer, "gl_FogFragCoord = gl_Position.z;\n");
 342
 343         /* Write the final position.
 344          *
 345          * OpenGL coordinates specify the center of the pixel while d3d coords specify
 346          * the corner. The offsets are stored in z and w in the 2nd row of the projection
 347          * matrix to avoid wasting a free shader constant. Add them to the w and z coord
 348          * of the 2nd row
 349          */
 350         shader_addline(&buffer, "gl_Position.x = gl_Position.x + posFixup[2];\n");
 351         shader_addline(&buffer, "gl_Position.y = gl_Position.y + posFixup[3];\n");
 352         /* Account for any inverted textures (render to texture case) by reversing the y coordinate
 353          *  (this is handled in drawPrim() when it sets the MODELVIEW and PROJECTION matrices)
 354          */
 355         shader_addline(&buffer, "gl_Position.y = gl_Position.y * posFixup[1];\n");
 356
 357         shader_addline(&buffer, "}\n");
 358
 359         TRACE("Compiling shader object %u\n", shader_obj);
 360         GL_EXTCALL(glShaderSourceARB(shader_obj, 1, (const char**)&buffer.buffer, NULL));
 361         GL_EXTCALL(glCompileShaderARB(shader_obj));
 362         print_glsl_info_log(&GLINFO_LOCATION, shader_obj);
 363
 364         /* Store the shader object */
 365         This->baseShader.prgId = shader_obj;
 366
 367     } else if (This->baseShader.shader_mode == SHADER_ARB) {
 368
 369         /*  Create the hw ARB shader */
 370         shader_addline(&buffer, "!!ARBvp1.0\n");
 371
 372         /* Mesa supports only 95 constants */
 373         if (GL_VEND(MESA) || GL_VEND(WINE))
 374             This->baseShader.limits.constant_float =
 375                 min(95, This->baseShader.limits.constant_float);
 376
 377         /* Base Declarations */
 378         shader_generate_arb_declarations( (IWineD3DBaseShader*) This, reg_maps, &buffer, &GLINFO_LOCATION);
 379
 380         /* We need a constant to fixup the final position */
 381         shader_addline(&buffer, "PARAM posFixup = program.env[%d];\n", ARB_SHADER_PRIVCONST_POS);
 382
 383         /* Base Shader Body */
 384         shader_generate_main( (IWineD3DBaseShader*) This, &buffer, reg_maps, pFunction);
 385
 386         /* If this shader doesn't use fog copy the z coord to the fog coord so that we can use table fog */
 387         if (!reg_maps->fog)
 388             shader_addline(&buffer, "MOV result.fogcoord, TMP_OUT.z;\n");
 389
 390         /* Write the final position.
 391          *
 392          * OpenGL coordinates specify the center of the pixel while d3d coords specify
 393          * the corner. The offsets are stored in the 2nd row of the projection matrix,
 394          * the x offset in z and the y offset in w. Add them to the resulting position
 395          */
 396         shader_addline(&buffer, "ADD TMP_OUT.x, TMP_OUT.x, posFixup.z;\n");
 397         shader_addline(&buffer, "ADD TMP_OUT.y, TMP_OUT.y, posFixup.w;\n");
 398         /* Account for any inverted textures (render to texture case) by reversing the y coordinate
 399          *  (this is handled in drawPrim() when it sets the MODELVIEW and PROJECTION matrices)
 400          */
 401         shader_addline(&buffer, "MUL TMP_OUT.y, TMP_OUT.y, posFixup.y;\n");
 402
 403         shader_addline(&buffer, "MOV result.position, TMP_OUT;\n");
 404
 405         shader_addline(&buffer, "END\n");
 406
 407         /* TODO: change to resource.glObjectHandle or something like that */
 408         GL_EXTCALL(glGenProgramsARB(1, &This->baseShader.prgId));
 409
 410         TRACE("Creating a hw vertex shader, prg=%d\n", This->baseShader.prgId);
 411         GL_EXTCALL(glBindProgramARB(GL_VERTEX_PROGRAM_ARB, This->baseShader.prgId));
 412
 413         TRACE("Created hw vertex shader, prg=%d\n", This->baseShader.prgId);
 414         /* Create the program and check for errors */
 415         GL_EXTCALL(glProgramStringARB(GL_VERTEX_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
 416             buffer.bsize, buffer.buffer));
 417
 418         if (glGetError() == GL_INVALID_OPERATION) {
 419             GLint errPos;
 420             glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errPos);
 421             FIXME("HW VertexShader Error at position %d: %s\n",
 422                   errPos, debugstr_a((const char *)glGetString(GL_PROGRAM_ERROR_STRING_ARB)));
 423             This->baseShader.prgId = -1;
 424         }
 425     }
 426
 427 #if 1 /* if were using the data buffer of device then we don't need to free it */
 428   HeapFree(GetProcessHeap(), 0, buffer.buffer);
 429 #endif
 430 }
 431
 432 /* *******************************************
 433    IWineD3DVertexShader IUnknown parts follow
 434    ******************************************* */
 435 static HRESULT WINAPI IWineD3DVertexShaderImpl_QueryInterface(IWineD3DVertexShader *iface, REFIID riid, LPVOID *ppobj)
 436 {
 437     IWineD3DVertexShaderImpl *This = (IWineD3DVertexShaderImpl *)iface;
 438     TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(riid),ppobj);
 439     if (IsEqualGUID(riid, &IID_IUnknown)
 440         || IsEqualGUID(riid, &IID_IWineD3DBase)
 441         || IsEqualGUID(riid, &IID_IWineD3DBaseShader)
 442         || IsEqualGUID(riid, &IID_IWineD3DVertexShader)) {
 443         IUnknown_AddRef(iface);
 444         *ppobj = This;
 445         return S_OK;
 446     }
 447     *ppobj = NULL;
 448     return E_NOINTERFACE;
 449 }
 450
 451 static ULONG WINAPI IWineD3DVertexShaderImpl_AddRef(IWineD3DVertexShader *iface) {
 452     IWineD3DVertexShaderImpl *This = (IWineD3DVertexShaderImpl *)iface;
 453     TRACE("(%p) : AddRef increasing from %d\n", This, This->ref);
 454     return InterlockedIncrement(&This->ref);
 455 }
 456
 457 static ULONG WINAPI IWineD3DVertexShaderImpl_Release(IWineD3DVertexShader *iface) {
 458     IWineD3DVertexShaderImpl *This = (IWineD3DVertexShaderImpl *)iface;
 459     ULONG ref;
 460     TRACE("(%p) : Releasing from %d\n", This, This->ref);
 461     ref = InterlockedDecrement(&This->ref);
 462     if (ref == 0) {
 463         if(iface == ((IWineD3DDeviceImpl *) This->baseShader.device)->stateBlock->vertexShader) {
 464             /* See comment in PixelShader::Release */
 465             IWineD3DDeviceImpl_MarkStateDirty((IWineD3DDeviceImpl *) This->baseShader.device, STATE_VSHADER);
 466         }
 467
 468         if (This->baseShader.shader_mode == SHADER_GLSL && This->baseShader.prgId != 0) {
 469             struct list *linked_programs = &This->baseShader.linked_programs;
 470
 471             TRACE("Deleting linked programs\n");
 472             if (linked_programs->next) {
 473                 struct glsl_shader_prog_link *entry, *entry2;
 474                 LIST_FOR_EACH_ENTRY_SAFE(entry, entry2, linked_programs, struct glsl_shader_prog_link, vshader_entry) {
 475                     delete_glsl_program_entry(This->baseShader.device, entry);
 476                 }
 477             }
 478
 479             TRACE("Deleting shader object %u\n", This->baseShader.prgId);
 480             GL_EXTCALL(glDeleteObjectARB(This->baseShader.prgId));
 481             checkGLcall("glDeleteObjectARB");
 482         }
 483         shader_delete_constant_list(&This->baseShader.constantsF);
 484         shader_delete_constant_list(&This->baseShader.constantsB);
 485         shader_delete_constant_list(&This->baseShader.constantsI);
 486         HeapFree(GetProcessHeap(), 0, This);
 487
 488     }
 489     return ref;
 490 }
 491
 492 /* *******************************************
 493    IWineD3DVertexShader IWineD3DVertexShader parts follow
 494    ******************************************* */
 495
 496 static HRESULT WINAPI IWineD3DVertexShaderImpl_GetParent(IWineD3DVertexShader *iface, IUnknown** parent){
 497     IWineD3DVertexShaderImpl *This = (IWineD3DVertexShaderImpl *)iface;
 498
 499     *parent = This->parent;
 500     IUnknown_AddRef(*parent);
 501     TRACE("(%p) : returning %p\n", This, *parent);
 502     return WINED3D_OK;
 503 }
 504
 505 static HRESULT WINAPI IWineD3DVertexShaderImpl_GetDevice(IWineD3DVertexShader* iface, IWineD3DDevice **pDevice){
 506     IWineD3DVertexShaderImpl *This = (IWineD3DVertexShaderImpl *)iface;
 507     IWineD3DDevice_AddRef(This->baseShader.device);
 508     *pDevice = This->baseShader.device;
 509     TRACE("(%p) returning %p\n", This, *pDevice);
 510     return WINED3D_OK;
 511 }
 512
 513 static HRESULT WINAPI IWineD3DVertexShaderImpl_GetFunction(IWineD3DVertexShader* impl, VOID* pData, UINT* pSizeOfData) {
 514     IWineD3DVertexShaderImpl *This = (IWineD3DVertexShaderImpl *)impl;
 515     TRACE("(%p) : pData(%p), pSizeOfData(%p)\n", This, pData, pSizeOfData);
 516
 517     if (NULL == pData) {
 518         *pSizeOfData = This->baseShader.functionLength;
 519         return WINED3D_OK;
 520     }
 521     if (*pSizeOfData < This->baseShader.functionLength) {
 522         /* MSDN claims (for d3d8 at least) that if *pSizeOfData is smaller
 523          * than the required size we should write the required size and
 524          * return D3DERR_MOREDATA. That's not actually true. */
 525         return WINED3DERR_INVALIDCALL;
 526     }
 527     if (NULL == This->baseShader.function) { /* no function defined */
 528         TRACE("(%p) : GetFunction no User Function defined using NULL to %p\n", This, pData);
 529         (*(DWORD **) pData) = NULL;
 530     } else {
 531         if(This->baseShader.functionLength == 0){
 532
 533         }
 534         TRACE("(%p) : GetFunction copying to %p\n", This, pData);
 535         memcpy(pData, This->baseShader.function, This->baseShader.functionLength);
 536     }
 537     return WINED3D_OK;
 538 }
 539
 540 /* Note that for vertex shaders CompileShader isn't called until the
 541  * shader is first used. The reason for this is that we need the vertex
 542  * declaration the shader will be used with in order to determine if
 543  * the data in a register is of type D3DCOLOR, and needs swizzling. */
 544 static HRESULT WINAPI IWineD3DVertexShaderImpl_SetFunction(IWineD3DVertexShader *iface, CONST DWORD *pFunction) {
 545
 546     IWineD3DVertexShaderImpl *This =(IWineD3DVertexShaderImpl *)iface;
 547     IWineD3DDeviceImpl *deviceImpl = (IWineD3DDeviceImpl *) This->baseShader.device;
 548     HRESULT hr;
 549     shader_reg_maps *reg_maps = &This->baseShader.reg_maps;
 550
 551     TRACE("(%p) : pFunction %p\n", iface, pFunction);
 552
 553     /* First pass: trace shader */
 554     shader_trace_init((IWineD3DBaseShader*) This, pFunction);
 555     vshader_set_limits(This);
 556
 557     /* Initialize immediate constant lists */
 558     list_init(&This->baseShader.constantsF);
 559     list_init(&This->baseShader.constantsB);
 560     list_init(&This->baseShader.constantsI);
 561
 562     /* Second pass: figure out registers used, semantics, etc.. */
 563     memset(reg_maps, 0, sizeof(shader_reg_maps));
 564     hr = shader_get_registers_used((IWineD3DBaseShader*) This, reg_maps,
 565        This->semantics_in, This->semantics_out, pFunction, deviceImpl->stateBlock);
 566     if (hr != WINED3D_OK) return hr;
 567
 568     This->baseShader.shader_mode = deviceImpl->vs_selected_mode;
 569
 570     /* copy the function ... because it will certainly be released by application */
 571     if (NULL != pFunction) {
 572         void *function;
 573
 574         function = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, This->baseShader.functionLength);
 575         if (!function) return E_OUTOFMEMORY;
 576         memcpy(function, pFunction, This->baseShader.functionLength);
 577         This->baseShader.function = function;
 578     } else {
 579         This->baseShader.function = NULL;
 580     }
 581
 582     return WINED3D_OK;
 583 }
 584
 585 /* Preload semantics for d3d8 shaders */
 586 static void WINAPI IWineD3DVertexShaderImpl_FakeSemantics(IWineD3DVertexShader *iface, IWineD3DVertexDeclaration *vertex_declaration) {
 587     IWineD3DVertexShaderImpl *This =(IWineD3DVertexShaderImpl *)iface;
 588     IWineD3DVertexDeclarationImpl* vdecl = (IWineD3DVertexDeclarationImpl*)vertex_declaration;
 589
 590     int i;
 591     for (i = 0; i < vdecl->declarationWNumElements - 1; ++i) {
 592         WINED3DVERTEXELEMENT* element = vdecl->pDeclarationWine + i;
 593         vshader_set_input(This, element->Reg, element->Usage, element->UsageIndex);
 594     }
 595 }
 596
 597 /* Set local constants for d3d8 shaders */
 598 static HRESULT WINAPI IWIneD3DVertexShaderImpl_SetLocalConstantsF(IWineD3DVertexShader *iface,
 599         UINT start_idx, const float *src_data, UINT count) {
 600     IWineD3DVertexShaderImpl *This =(IWineD3DVertexShaderImpl *)iface;
 601     UINT i, end_idx;
 602
 603     TRACE("(%p) : start_idx %u, src_data %p, count %u\n", This, start_idx, src_data, count);
 604
 605     end_idx = start_idx + count;
 606     if (end_idx > GL_LIMITS(vshader_constantsF)) {
 607         WARN("end_idx %u > float constants limit %u\n", end_idx, GL_LIMITS(vshader_constantsF));
 608         end_idx = GL_LIMITS(vshader_constantsF);
 609     }
 610
 611     for (i = start_idx; i < end_idx; ++i) {
 612         local_constant* lconst = HeapAlloc(GetProcessHeap(), 0, sizeof(local_constant));
 613         if (!lconst) return E_OUTOFMEMORY;
 614
 615         lconst->idx = i;
 616         CopyMemory(lconst->value, src_data + i * 4, 4 * sizeof(float));
 617         list_add_head(&This->baseShader.constantsF, &lconst->entry);
 618     }
 619
 620     return WINED3D_OK;
 621 }
 622
 623 static HRESULT WINAPI IWineD3DVertexShaderImpl_CompileShader(IWineD3DVertexShader *iface) {
 624     IWineD3DVertexShaderImpl *This = (IWineD3DVertexShaderImpl *)iface;
 625     CONST DWORD *function = This->baseShader.function;
 626
 627     TRACE("(%p) : function %p\n", iface, function);
 628
 629     /* We're already compiled. */
 630     if (This->baseShader.is_compiled) return WINED3D_OK;
 631
 632     /* We don't need to compile */
 633     if (!function) {
 634         This->baseShader.is_compiled = TRUE;
 635         return WINED3D_OK;
 636     }
 637
 638     /* Generate the HW shader */
 639     TRACE("(%p) : Generating hardware program\n", This);
 640     IWineD3DVertexShaderImpl_GenerateShader(iface, &This->baseShader.reg_maps, function);
 641
 642     This->baseShader.is_compiled = TRUE;
 643
 644     return WINED3D_OK;
 645 }
 646
 647 const IWineD3DVertexShaderVtbl IWineD3DVertexShader_Vtbl =
 648 {
 649     /*** IUnknown methods ***/
 650     IWineD3DVertexShaderImpl_QueryInterface,
 651     IWineD3DVertexShaderImpl_AddRef,
 652     IWineD3DVertexShaderImpl_Release,
 653     /*** IWineD3DBase methods ***/
 654     IWineD3DVertexShaderImpl_GetParent,
 655     /*** IWineD3DBaseShader methods ***/
 656     IWineD3DVertexShaderImpl_SetFunction,
 657     IWineD3DVertexShaderImpl_CompileShader,
 658     /*** IWineD3DVertexShader methods ***/
 659     IWineD3DVertexShaderImpl_GetDevice,
 660     IWineD3DVertexShaderImpl_GetFunction,
 661     IWineD3DVertexShaderImpl_FakeSemantics,
 662     IWIneD3DVertexShaderImpl_SetLocalConstantsF
 663 };