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

   1 /*
   2  * WINED3D draw functions
   3  *
   4  * Copyright 2002-2004 Jason Edmeades
   5  * Copyright 2002-2004 Raphael Junqueira
   6  * Copyright 2004 Christian Costa
   7  * Copyright 2005 Oliver Stieber
   8  * Copyright 2006, 2008 Henri Verbeet
   9  * Copyright 2007-2008 Stefan Dösinger for CodeWeavers
  10  * Copyright 2009 Henri Verbeet for CodeWeavers
  11  *
  12  * This library is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU Lesser General Public
  14  * License as published by the Free Software Foundation; either
  15  * version 2.1 of the License, or (at your option) any later version.
  16  *
  17  * This library is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  20  * Lesser General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU Lesser General Public
  23  * License along with this library; if not, write to the Free Software
  24  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  25  */
  26
  27 #include "config.h"
  28 #include "wine/port.h"
  29
  30 #include "wined3d_private.h"
  31
  32 WINE_DEFAULT_DEBUG_CHANNEL(d3d_draw);
  33 WINE_DECLARE_DEBUG_CHANNEL(d3d_perf);
  34
  35 #include <stdio.h>
  36 #include <math.h>
  37
  38 /* Context activation is done by the caller. */
  39 static void drawStridedFast(const struct wined3d_gl_info *gl_info, GLenum primitive_type, UINT count, UINT idx_size,
  40         const void *idx_data, UINT start_idx, INT base_vertex_index, UINT start_instance, UINT instance_count)
  41 {
  42     if (idx_size)
  43     {
  44         GLenum idxtype = idx_size == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT;
  45         if (instance_count)
  46         {
  47             if (!gl_info->supported[ARB_DRAW_INSTANCED])
  48             {
  49                 FIXME("Instanced drawing not supported.\n");
  50             }
  51             else
  52             {
  53                 if (start_instance)
  54                     FIXME("Start instance (%u) not supported.\n", start_instance);
  55                 GL_EXTCALL(glDrawElementsInstancedBaseVertex(primitive_type, count, idxtype,
  56                         (const char *)idx_data + (idx_size * start_idx), instance_count, base_vertex_index));
  57                 checkGLcall("glDrawElementsInstancedBaseVertex");
  58             }
  59         }
  60         else if (gl_info->supported[ARB_DRAW_ELEMENTS_BASE_VERTEX])
  61         {
  62             GL_EXTCALL(glDrawElementsBaseVertex(primitive_type, count, idxtype,
  63                     (const char *)idx_data + (idx_size * start_idx), base_vertex_index));
  64             checkGLcall("glDrawElementsBaseVertex");
  65         }
  66         else
  67         {
  68             gl_info->gl_ops.gl.p_glDrawElements(primitive_type, count,
  69                     idxtype, (const char *)idx_data + (idx_size * start_idx));
  70             checkGLcall("glDrawElements");
  71         }
  72     }
  73     else
  74     {
  75         gl_info->gl_ops.gl.p_glDrawArrays(primitive_type, start_idx, count);
  76         checkGLcall("glDrawArrays");
  77     }
  78 }
  79
  80 /*
  81  * Actually draw using the supplied information.
  82  * Slower GL version which extracts info about each vertex in turn
  83  */
  84
  85 /* Context activation is done by the caller. */
  86 static void drawStridedSlow(const struct wined3d_device *device, const struct wined3d_context *context,
  87         const struct wined3d_stream_info *si, UINT NumVertexes, GLenum glPrimType,
  88         const void *idxData, UINT idxSize, UINT startIdx)
  89 {
  90     unsigned int               textureNo    = 0;
  91     const WORD                *pIdxBufS     = NULL;
  92     const DWORD               *pIdxBufL     = NULL;
  93     UINT vx_index;
  94     const struct wined3d_state *state = &device->stateBlock->state;
  95     LONG SkipnStrides = startIdx;
  96     BOOL pixelShader = use_ps(state);
  97     BOOL specular_fog = FALSE;
  98     const BYTE *texCoords[WINED3DDP_MAXTEXCOORD];
  99     const BYTE *diffuse = NULL, *specular = NULL, *normal = NULL, *position = NULL;
 100     const struct wined3d_gl_info *gl_info = context->gl_info;
 101     UINT texture_stages = gl_info->limits.texture_stages;
 102     const struct wined3d_stream_info_element *element;
 103     UINT num_untracked_materials;
 104     DWORD tex_mask = 0;
 105
 106     TRACE_(d3d_perf)("Using slow vertex array code\n");
 107
 108     /* Variable Initialization */
 109     if (idxSize)
 110     {
 111         /* Immediate mode drawing can't make use of indices in a vbo - get the
 112          * data from the index buffer. If the index buffer has no vbo (not
 113          * supported or other reason), or with user pointer drawing idxData
 114          * will be non-NULL. */
 115         if (!idxData)
 116             idxData = buffer_get_sysmem(state->index_buffer, gl_info);
 117
 118         if (idxSize == 2) pIdxBufS = idxData;
 119         else pIdxBufL = idxData;
 120     } else if (idxData) {
 121         ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
 122         return;
 123     }
 124
 125     /* Start drawing in GL */
 126     gl_info->gl_ops.gl.p_glBegin(glPrimType);
 127
 128     if (si->use_map & (1 << WINED3D_FFP_POSITION))
 129     {
 130         element = &si->elements[WINED3D_FFP_POSITION];
 131         position = element->data.addr;
 132     }
 133
 134     if (si->use_map & (1 << WINED3D_FFP_NORMAL))
 135     {
 136         element = &si->elements[WINED3D_FFP_NORMAL];
 137         normal = element->data.addr;
 138     }
 139     else
 140     {
 141         gl_info->gl_ops.gl.p_glNormal3f(0, 0, 0);
 142     }
 143
 144     num_untracked_materials = context->num_untracked_materials;
 145     if (si->use_map & (1 << WINED3D_FFP_DIFFUSE))
 146     {
 147         element = &si->elements[WINED3D_FFP_DIFFUSE];
 148         diffuse = element->data.addr;
 149
 150         if (num_untracked_materials && element->format->id != WINED3DFMT_B8G8R8A8_UNORM)
 151             FIXME("Implement diffuse color tracking from %s\n", debug_d3dformat(element->format->id));
 152     }
 153     else
 154     {
 155         gl_info->gl_ops.gl.p_glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 156     }
 157
 158     if (si->use_map & (1 << WINED3D_FFP_SPECULAR))
 159     {
 160         element = &si->elements[WINED3D_FFP_SPECULAR];
 161         specular = element->data.addr;
 162
 163         /* special case where the fog density is stored in the specular alpha channel */
 164         if (state->render_states[WINED3D_RS_FOGENABLE]
 165                 && (state->render_states[WINED3D_RS_FOGVERTEXMODE] == WINED3D_FOG_NONE
 166                     || si->elements[WINED3D_FFP_POSITION].format->id == WINED3DFMT_R32G32B32A32_FLOAT)
 167                 && state->render_states[WINED3D_RS_FOGTABLEMODE] == WINED3D_FOG_NONE)
 168         {
 169             if (gl_info->supported[EXT_FOG_COORD])
 170             {
 171                 if (element->format->id == WINED3DFMT_B8G8R8A8_UNORM) specular_fog = TRUE;
 172                 else FIXME("Implement fog coordinates from %s\n", debug_d3dformat(element->format->id));
 173             }
 174             else
 175             {
 176                 static BOOL warned;
 177
 178                 if (!warned)
 179                 {
 180                     /* TODO: Use the fog table code from old ddraw */
 181                     FIXME("Implement fog for transformed vertices in software\n");
 182                     warned = TRUE;
 183                 }
 184             }
 185         }
 186     }
 187     else if (gl_info->supported[EXT_SECONDARY_COLOR])
 188     {
 189         GL_EXTCALL(glSecondaryColor3fEXT)(0, 0, 0);
 190     }
 191
 192     for (textureNo = 0; textureNo < texture_stages; ++textureNo)
 193     {
 194         int coordIdx = state->texture_states[textureNo][WINED3D_TSS_TEXCOORD_INDEX];
 195         DWORD texture_idx = device->texUnitMap[textureNo];
 196
 197         if (!gl_info->supported[ARB_MULTITEXTURE] && textureNo > 0)
 198         {
 199             FIXME("Program using multiple concurrent textures which this opengl implementation doesn't support\n");
 200             continue;
 201         }
 202
 203         if (!pixelShader && !state->textures[textureNo]) continue;
 204
 205         if (texture_idx == WINED3D_UNMAPPED_STAGE) continue;
 206
 207         if (coordIdx > 7)
 208         {
 209             TRACE("tex: %d - Skip tex coords, as being system generated\n", textureNo);
 210             continue;
 211         }
 212         else if (coordIdx < 0)
 213         {
 214             FIXME("tex: %d - Coord index %d is less than zero, expect a crash.\n", textureNo, coordIdx);
 215             continue;
 216         }
 217
 218         if (si->use_map & (1 << (WINED3D_FFP_TEXCOORD0 + coordIdx)))
 219         {
 220             element = &si->elements[WINED3D_FFP_TEXCOORD0 + coordIdx];
 221             texCoords[coordIdx] = element->data.addr;
 222             tex_mask |= (1 << textureNo);
 223         }
 224         else
 225         {
 226             TRACE("tex: %d - Skipping tex coords, as no data supplied\n", textureNo);
 227             if (gl_info->supported[ARB_MULTITEXTURE])
 228                 GL_EXTCALL(glMultiTexCoord4fARB(GL_TEXTURE0_ARB + texture_idx, 0, 0, 0, 1));
 229             else
 230                 gl_info->gl_ops.gl.p_glTexCoord4f(0, 0, 0, 1);
 231         }
 232     }
 233
 234     /* We shouldn't start this function if any VBO is involved. Should I put a safety check here?
 235      * Guess it's not necessary(we crash then anyway) and would only eat CPU time
 236      */
 237
 238     /* For each primitive */
 239     for (vx_index = 0; vx_index < NumVertexes; ++vx_index) {
 240         UINT texture, tmp_tex_mask;
 241         /* Blending data and Point sizes are not supported by this function. They are not supported by the fixed
 242          * function pipeline at all. A Fixme for them is printed after decoding the vertex declaration
 243          */
 244
 245         /* For indexed data, we need to go a few more strides in */
 246         if (idxData)
 247         {
 248             /* Indexed so work out the number of strides to skip */
 249             if (idxSize == 2)
 250                 SkipnStrides = pIdxBufS[startIdx + vx_index] + state->base_vertex_index;
 251             else
 252                 SkipnStrides = pIdxBufL[startIdx + vx_index] + state->base_vertex_index;
 253         }
 254
 255         tmp_tex_mask = tex_mask;
 256         for (texture = 0; tmp_tex_mask; tmp_tex_mask >>= 1, ++texture)
 257         {
 258             int coord_idx;
 259             const void *ptr;
 260             DWORD texture_idx;
 261
 262             if (!(tmp_tex_mask & 1)) continue;
 263
 264             coord_idx = state->texture_states[texture][WINED3D_TSS_TEXCOORD_INDEX];
 265             ptr = texCoords[coord_idx] + (SkipnStrides * si->elements[WINED3D_FFP_TEXCOORD0 + coord_idx].stride);
 266
 267             texture_idx = device->texUnitMap[texture];
 268             multi_texcoord_funcs[si->elements[WINED3D_FFP_TEXCOORD0 + coord_idx].format->emit_idx](
 269                     GL_TEXTURE0_ARB + texture_idx, ptr);
 270         }
 271
 272         /* Diffuse -------------------------------- */
 273         if (diffuse) {
 274             const void *ptrToCoords = diffuse + SkipnStrides * si->elements[WINED3D_FFP_DIFFUSE].stride;
 275
 276             diffuse_funcs[si->elements[WINED3D_FFP_DIFFUSE].format->emit_idx](ptrToCoords);
 277             if (num_untracked_materials)
 278             {
 279                 DWORD diffuseColor = ((const DWORD *)ptrToCoords)[0];
 280                 unsigned char i;
 281                 float color[4];
 282
 283                 color[0] = D3DCOLOR_B_R(diffuseColor) / 255.0f;
 284                 color[1] = D3DCOLOR_B_G(diffuseColor) / 255.0f;
 285                 color[2] = D3DCOLOR_B_B(diffuseColor) / 255.0f;
 286                 color[3] = D3DCOLOR_B_A(diffuseColor) / 255.0f;
 287
 288                 for (i = 0; i < num_untracked_materials; ++i)
 289                 {
 290                     gl_info->gl_ops.gl.p_glMaterialfv(GL_FRONT_AND_BACK, context->untracked_materials[i], color);
 291                 }
 292             }
 293         }
 294
 295         /* Specular ------------------------------- */
 296         if (specular) {
 297             const void *ptrToCoords = specular + SkipnStrides * si->elements[WINED3D_FFP_SPECULAR].stride;
 298
 299             specular_funcs[si->elements[WINED3D_FFP_SPECULAR].format->emit_idx](ptrToCoords);
 300
 301             if (specular_fog)
 302             {
 303                 DWORD specularColor = *(const DWORD *)ptrToCoords;
 304                 GL_EXTCALL(glFogCoordfEXT((float) (specularColor >> 24)));
 305             }
 306         }
 307
 308         /* Normal -------------------------------- */
 309         if (normal)
 310         {
 311             const void *ptrToCoords = normal + SkipnStrides * si->elements[WINED3D_FFP_NORMAL].stride;
 312             normal_funcs[si->elements[WINED3D_FFP_NORMAL].format->emit_idx](ptrToCoords);
 313         }
 314
 315         /* Position -------------------------------- */
 316         if (position) {
 317             const void *ptrToCoords = position + SkipnStrides * si->elements[WINED3D_FFP_POSITION].stride;
 318             position_funcs[si->elements[WINED3D_FFP_POSITION].format->emit_idx](ptrToCoords);
 319         }
 320
 321         /* For non indexed mode, step onto next parts */
 322         if (!idxData) ++SkipnStrides;
 323     }
 324
 325     gl_info->gl_ops.gl.p_glEnd();
 326     checkGLcall("glEnd and previous calls");
 327 }
 328
 329 /* Context activation is done by the caller. */
 330 static inline void send_attribute(const struct wined3d_gl_info *gl_info,
 331         enum wined3d_format_id format, const UINT index, const void *ptr)
 332 {
 333     switch(format)
 334     {
 335         case WINED3DFMT_R32_FLOAT:
 336             GL_EXTCALL(glVertexAttrib1fvARB(index, ptr));
 337             break;
 338         case WINED3DFMT_R32G32_FLOAT:
 339             GL_EXTCALL(glVertexAttrib2fvARB(index, ptr));
 340             break;
 341         case WINED3DFMT_R32G32B32_FLOAT:
 342             GL_EXTCALL(glVertexAttrib3fvARB(index, ptr));
 343             break;
 344         case WINED3DFMT_R32G32B32A32_FLOAT:
 345             GL_EXTCALL(glVertexAttrib4fvARB(index, ptr));
 346             break;
 347
 348         case WINED3DFMT_R8G8B8A8_UINT:
 349             GL_EXTCALL(glVertexAttrib4ubvARB(index, ptr));
 350             break;
 351         case WINED3DFMT_B8G8R8A8_UNORM:
 352             if (gl_info->supported[ARB_VERTEX_ARRAY_BGRA])
 353             {
 354                 const DWORD *src = ptr;
 355                 DWORD c = *src & 0xff00ff00;
 356                 c |= (*src & 0xff0000) >> 16;
 357                 c |= (*src & 0xff) << 16;
 358                 GL_EXTCALL(glVertexAttrib4NubvARB(index, (GLubyte *)&c));
 359                 break;
 360             }
 361             /* else fallthrough */
 362         case WINED3DFMT_R8G8B8A8_UNORM:
 363             GL_EXTCALL(glVertexAttrib4NubvARB(index, ptr));
 364             break;
 365
 366         case WINED3DFMT_R16G16_SINT:
 367             GL_EXTCALL(glVertexAttrib4svARB(index, ptr));
 368             break;
 369         case WINED3DFMT_R16G16B16A16_SINT:
 370             GL_EXTCALL(glVertexAttrib4svARB(index, ptr));
 371             break;
 372
 373         case WINED3DFMT_R16G16_SNORM:
 374         {
 375             GLshort s[4] = {((const GLshort *)ptr)[0], ((const GLshort *)ptr)[1], 0, 1};
 376             GL_EXTCALL(glVertexAttrib4NsvARB(index, s));
 377             break;
 378         }
 379         case WINED3DFMT_R16G16_UNORM:
 380         {
 381             GLushort s[4] = {((const GLushort *)ptr)[0], ((const GLushort *)ptr)[1], 0, 1};
 382             GL_EXTCALL(glVertexAttrib4NusvARB(index, s));
 383             break;
 384         }
 385         case WINED3DFMT_R16G16B16A16_SNORM:
 386             GL_EXTCALL(glVertexAttrib4NsvARB(index, ptr));
 387             break;
 388         case WINED3DFMT_R16G16B16A16_UNORM:
 389             GL_EXTCALL(glVertexAttrib4NusvARB(index, ptr));
 390             break;
 391
 392         case WINED3DFMT_R10G10B10A2_UINT:
 393             FIXME("Unsure about WINED3DDECLTYPE_UDEC3\n");
 394             /*glVertexAttrib3usvARB(instancedData[j], (GLushort *) ptr); Does not exist */
 395             break;
 396         case WINED3DFMT_R10G10B10A2_SNORM:
 397             FIXME("Unsure about WINED3DDECLTYPE_DEC3N\n");
 398             /*glVertexAttrib3NusvARB(instancedData[j], (GLushort *) ptr); Does not exist */
 399             break;
 400
 401         case WINED3DFMT_R16G16_FLOAT:
 402             /* Are those 16 bit floats. C doesn't have a 16 bit float type. I could read the single bits and calculate a 4
 403              * byte float according to the IEEE standard
 404              */
 405             if (gl_info->supported[NV_HALF_FLOAT] && gl_info->supported[NV_VERTEX_PROGRAM])
 406             {
 407                 /* Not supported by GL_ARB_half_float_vertex */
 408                 GL_EXTCALL(glVertexAttrib2hvNV(index, ptr));
 409             }
 410             else
 411             {
 412                 float x = float_16_to_32(((const unsigned short *)ptr) + 0);
 413                 float y = float_16_to_32(((const unsigned short *)ptr) + 1);
 414                 GL_EXTCALL(glVertexAttrib2fARB(index, x, y));
 415             }
 416             break;
 417         case WINED3DFMT_R16G16B16A16_FLOAT:
 418             if (gl_info->supported[NV_HALF_FLOAT] && gl_info->supported[NV_VERTEX_PROGRAM])
 419             {
 420                 /* Not supported by GL_ARB_half_float_vertex */
 421                 GL_EXTCALL(glVertexAttrib4hvNV(index, ptr));
 422             }
 423             else
 424             {
 425                 float x = float_16_to_32(((const unsigned short *)ptr) + 0);
 426                 float y = float_16_to_32(((const unsigned short *)ptr) + 1);
 427                 float z = float_16_to_32(((const unsigned short *)ptr) + 2);
 428                 float w = float_16_to_32(((const unsigned short *)ptr) + 3);
 429                 GL_EXTCALL(glVertexAttrib4fARB(index, x, y, z, w));
 430             }
 431             break;
 432
 433         default:
 434             ERR("Unexpected attribute format: %s\n", debug_d3dformat(format));
 435             break;
 436     }
 437 }
 438
 439 /* Context activation is done by the caller. */
 440 static void drawStridedSlowVs(const struct wined3d_gl_info *gl_info, const struct wined3d_state *state,
 441         const struct wined3d_stream_info *si, UINT numberOfVertices, GLenum glPrimitiveType,
 442         const void *idxData, UINT idxSize, UINT startIdx)
 443 {
 444     LONG SkipnStrides = startIdx + state->load_base_vertex_index;
 445     const DWORD *pIdxBufL = NULL;
 446     const WORD *pIdxBufS = NULL;
 447     UINT vx_index;
 448     int i;
 449     const BYTE *ptr;
 450
 451     if (idxSize)
 452     {
 453         /* Immediate mode drawing can't make use of indices in a vbo - get the
 454          * data from the index buffer. If the index buffer has no vbo (not
 455          * supported or other reason), or with user pointer drawing idxData
 456          * will be non-NULL. */
 457         if (!idxData)
 458             idxData = buffer_get_sysmem(state->index_buffer, gl_info);
 459
 460         if (idxSize == 2) pIdxBufS = idxData;
 461         else pIdxBufL = idxData;
 462     } else if (idxData) {
 463         ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
 464         return;
 465     }
 466
 467     /* Start drawing in GL */
 468     gl_info->gl_ops.gl.p_glBegin(glPrimitiveType);
 469
 470     for (vx_index = 0; vx_index < numberOfVertices; ++vx_index)
 471     {
 472         if (idxData)
 473         {
 474             /* Indexed so work out the number of strides to skip */
 475             if (idxSize == 2)
 476                 SkipnStrides = pIdxBufS[startIdx + vx_index] + state->load_base_vertex_index;
 477             else
 478                 SkipnStrides = pIdxBufL[startIdx + vx_index] + state->load_base_vertex_index;
 479         }
 480
 481         for (i = MAX_ATTRIBS - 1; i >= 0; i--)
 482         {
 483             if (!(si->use_map & (1 << i))) continue;
 484
 485             ptr = si->elements[i].data.addr + si->elements[i].stride * SkipnStrides;
 486
 487             send_attribute(gl_info, si->elements[i].format->id, i, ptr);
 488         }
 489         SkipnStrides++;
 490     }
 491
 492     gl_info->gl_ops.gl.p_glEnd();
 493 }
 494
 495 /* Context activation is done by the caller. */
 496 static void drawStridedInstanced(const struct wined3d_gl_info *gl_info, const struct wined3d_state *state,
 497         const struct wined3d_stream_info *si, UINT numberOfVertices, GLenum glPrimitiveType,
 498         const void *idxData, UINT idxSize, UINT startIdx, UINT base_vertex_index, UINT instance_count)
 499 {
 500     int numInstancedAttribs = 0, j;
 501     UINT instancedData[sizeof(si->elements) / sizeof(*si->elements) /* 16 */];
 502     GLenum idxtype = idxSize == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT;
 503     UINT i;
 504
 505     if (!idxSize)
 506     {
 507         /* This is a nasty thing. MSDN says no hardware supports that and apps have to use software vertex processing.
 508          * We don't support this for now
 509          *
 510          * Shouldn't be too hard to support with opengl, in theory just call glDrawArrays instead of drawElements.
 511          * But the StreamSourceFreq value has a different meaning in that situation.
 512          */
 513         FIXME("Non-indexed instanced drawing is not supported\n");
 514         return;
 515     }
 516
 517     for (i = 0; i < sizeof(si->elements) / sizeof(*si->elements); ++i)
 518     {
 519         if (!(si->use_map & (1 << i))) continue;
 520
 521         if (state->streams[si->elements[i].stream_idx].flags & WINED3DSTREAMSOURCE_INSTANCEDATA)
 522         {
 523             instancedData[numInstancedAttribs] = i;
 524             numInstancedAttribs++;
 525         }
 526     }
 527
 528     for (i = 0; i < instance_count; ++i)
 529     {
 530         /* Specify the instanced attributes using immediate mode calls */
 531         for(j = 0; j < numInstancedAttribs; j++) {
 532             const BYTE *ptr = si->elements[instancedData[j]].data.addr
 533                     + si->elements[instancedData[j]].stride * i;
 534             if (si->elements[instancedData[j]].data.buffer_object)
 535             {
 536                 struct wined3d_buffer *vb = state->streams[si->elements[instancedData[j]].stream_idx].buffer;
 537                 ptr += (ULONG_PTR)buffer_get_sysmem(vb, gl_info);
 538             }
 539
 540             send_attribute(gl_info, si->elements[instancedData[j]].format->id, instancedData[j], ptr);
 541         }
 542
 543         if (gl_info->supported[ARB_DRAW_ELEMENTS_BASE_VERTEX])
 544         {
 545             GL_EXTCALL(glDrawElementsBaseVertex(glPrimitiveType, numberOfVertices, idxtype,
 546                         (const char *)idxData+(idxSize * startIdx), base_vertex_index));
 547             checkGLcall("glDrawElementsBaseVertex");
 548         }
 549         else
 550         {
 551             gl_info->gl_ops.gl.p_glDrawElements(glPrimitiveType, numberOfVertices, idxtype,
 552                         (const char *)idxData + (idxSize * startIdx));
 553             checkGLcall("glDrawElements");
 554         }
 555     }
 556 }
 557
 558 static void remove_vbos(const struct wined3d_gl_info *gl_info,
 559         const struct wined3d_state *state, struct wined3d_stream_info *s)
 560 {
 561     unsigned int i;
 562
 563     for (i = 0; i < (sizeof(s->elements) / sizeof(*s->elements)); ++i)
 564     {
 565         struct wined3d_stream_info_element *e;
 566
 567         if (!(s->use_map & (1 << i))) continue;
 568
 569         e = &s->elements[i];
 570         if (e->data.buffer_object)
 571         {
 572             struct wined3d_buffer *vb = state->streams[e->stream_idx].buffer;
 573             e->data.buffer_object = 0;
 574             e->data.addr = (BYTE *)((ULONG_PTR)e->data.addr + (ULONG_PTR)buffer_get_sysmem(vb, gl_info));
 575         }
 576     }
 577 }
 578
 579 /* Routine common to the draw primitive and draw indexed primitive routines */
 580 void draw_primitive(struct wined3d_device *device, UINT start_idx, UINT index_count,
 581         UINT start_instance, UINT instance_count, BOOL indexed)
 582 {
 583     const struct wined3d_state *state = &device->stateBlock->state;
 584     const struct wined3d_stream_info *stream_info;
 585     struct wined3d_event_query *ib_query = NULL;
 586     struct wined3d_stream_info si_emulated;
 587     const struct wined3d_gl_info *gl_info;
 588     struct wined3d_context *context;
 589     BOOL emulation = FALSE;
 590     const void *idx_data = NULL;
 591     UINT idx_size = 0;
 592     unsigned int i;
 593
 594     if (!index_count) return;
 595
 596     if (state->render_states[WINED3D_RS_COLORWRITEENABLE])
 597     {
 598         /* Invalidate the back buffer memory so LockRect will read it the next time */
 599         for (i = 0; i < device->adapter->gl_info.limits.buffers; ++i)
 600         {
 601             struct wined3d_surface *target = device->fb.render_targets[i];
 602             if (target)
 603             {
 604                 surface_load_location(target, target->draw_binding, NULL);
 605                 surface_modify_location(target, target->draw_binding, TRUE);
 606             }
 607         }
 608     }
 609
 610     /* Signals other modules that a drawing is in progress and the stateblock finalized */
 611     device->isInDraw = TRUE;
 612
 613     context = context_acquire(device, device->fb.render_targets[0]);
 614     if (!context->valid)
 615     {
 616         context_release(context);
 617         WARN("Invalid context, skipping draw.\n");
 618         return;
 619     }
 620     gl_info = context->gl_info;
 621
 622     if (device->fb.depth_stencil)
 623     {
 624         /* Note that this depends on the context_acquire() call above to set
 625          * context->render_offscreen properly. We don't currently take the
 626          * Z-compare function into account, but we could skip loading the
 627          * depthstencil for D3DCMP_NEVER and D3DCMP_ALWAYS as well. Also note
 628          * that we never copy the stencil data.*/
 629         DWORD location = context->render_offscreen ? device->fb.depth_stencil->draw_binding : SFLAG_INDRAWABLE;
 630         if (state->render_states[WINED3D_RS_ZWRITEENABLE] || state->render_states[WINED3D_RS_ZENABLE])
 631         {
 632             struct wined3d_surface *ds = device->fb.depth_stencil;
 633             RECT current_rect, draw_rect, r;
 634
 635             if (!context->render_offscreen && ds != device->onscreen_depth_stencil)
 636                 device_switch_onscreen_ds(device, context, ds);
 637
 638             if (ds->flags & location)
 639                 SetRect(&current_rect, 0, 0, ds->ds_current_size.cx, ds->ds_current_size.cy);
 640             else
 641                 SetRectEmpty(&current_rect);
 642
 643             wined3d_get_draw_rect(state, &draw_rect);
 644
 645             IntersectRect(&r, &draw_rect, &current_rect);
 646             if (!EqualRect(&r, &draw_rect))
 647                 surface_load_ds_location(ds, context, location);
 648         }
 649     }
 650
 651     if (!context_apply_draw_state(context, device))
 652     {
 653         context_release(context);
 654         WARN("Unable to apply draw state, skipping draw.\n");
 655         return;
 656     }
 657
 658     if (device->fb.depth_stencil && state->render_states[WINED3D_RS_ZWRITEENABLE])
 659     {
 660         struct wined3d_surface *ds = device->fb.depth_stencil;
 661         DWORD location = context->render_offscreen ? ds->draw_binding : SFLAG_INDRAWABLE;
 662
 663         surface_modify_ds_location(ds, location, ds->ds_current_size.cx, ds->ds_current_size.cy);
 664     }
 665
 666     if ((!gl_info->supported[WINED3D_GL_VERSION_2_0]
 667             || !gl_info->supported[NV_POINT_SPRITE])
 668             && context->render_offscreen
 669             && state->render_states[WINED3D_RS_POINTSPRITEENABLE]
 670             && state->gl_primitive_type == GL_POINTS)
 671     {
 672         FIXME("Point sprite coordinate origin switching not supported.\n");
 673     }
 674
 675     stream_info = &device->stream_info;
 676     if (device->instance_count)
 677         instance_count = device->instance_count;
 678
 679     if (indexed)
 680     {
 681         struct wined3d_buffer *index_buffer = state->index_buffer;
 682         if (!index_buffer->buffer_object || !stream_info->all_vbo)
 683             idx_data = index_buffer->resource.allocatedMemory;
 684         else
 685         {
 686             ib_query = index_buffer->query;
 687             idx_data = NULL;
 688         }
 689
 690         if (state->index_format == WINED3DFMT_R16_UINT)
 691             idx_size = 2;
 692         else
 693             idx_size = 4;
 694     }
 695
 696     if (!use_vs(state))
 697     {
 698         if (!stream_info->position_transformed && context->num_untracked_materials
 699                 && state->render_states[WINED3D_RS_LIGHTING])
 700         {
 701             static BOOL warned;
 702
 703             if (!warned++)
 704                 FIXME("Using software emulation because not all material properties could be tracked.\n");
 705             else
 706                 WARN_(d3d_perf)("Using software emulation because not all material properties could be tracked.\n");
 707             emulation = TRUE;
 708         }
 709         else if (context->fog_coord && state->render_states[WINED3D_RS_FOGENABLE])
 710         {
 711             static BOOL warned;
 712
 713             /* Either write a pipeline replacement shader or convert the
 714              * specular alpha from unsigned byte to a float in the vertex
 715              * buffer. */
 716             if (!warned++)
 717                 FIXME("Using software emulation because manual fog coordinates are provided.\n");
 718             else
 719                 WARN_(d3d_perf)("Using software emulation because manual fog coordinates are provided.\n");
 720             emulation = TRUE;
 721         }
 722
 723         if (emulation)
 724         {
 725             si_emulated = device->stream_info;
 726             remove_vbos(gl_info, state, &si_emulated);
 727             stream_info = &si_emulated;
 728         }
 729     }
 730
 731     if (device->useDrawStridedSlow || emulation)
 732     {
 733         /* Immediate mode drawing. */
 734         if (use_vs(state))
 735         {
 736             static BOOL warned;
 737
 738             if (!warned++)
 739                 FIXME("Using immediate mode with vertex shaders for half float emulation.\n");
 740             else
 741                 WARN_(d3d_perf)("Using immediate mode with vertex shaders for half float emulation.\n");
 742
 743             drawStridedSlowVs(gl_info, state, stream_info, index_count,
 744                     state->gl_primitive_type, idx_data, idx_size, start_idx);
 745         }
 746         else
 747         {
 748             drawStridedSlow(device, context, stream_info, index_count,
 749                     state->gl_primitive_type, idx_data, idx_size, start_idx);
 750         }
 751     }
 752     else if (!gl_info->supported[ARB_INSTANCED_ARRAYS] && instance_count)
 753     {
 754         /* Instancing emulation by mixing immediate mode and arrays. */
 755         drawStridedInstanced(gl_info, state, stream_info, index_count, state->gl_primitive_type,
 756                 idx_data, idx_size, start_idx, state->base_vertex_index, instance_count);
 757     }
 758     else
 759     {
 760         drawStridedFast(gl_info, state->gl_primitive_type, index_count, idx_size, idx_data,
 761                 start_idx, state->base_vertex_index, start_instance, instance_count);
 762     }
 763
 764     if (ib_query)
 765         wined3d_event_query_issue(ib_query, device);
 766     for (i = 0; i < device->num_buffer_queries; ++i)
 767     {
 768         wined3d_event_query_issue(device->buffer_queries[i], device);
 769     }
 770
 771     if (wined3d_settings.strict_draw_ordering)
 772         gl_info->gl_ops.gl.p_glFlush(); /* Flush to ensure ordering across contexts. */
 773
 774     context_release(context);
 775
 776     TRACE("Done all gl drawing\n");
 777
 778     /* Control goes back to the device, stateblock values may change again */
 779     device->isInDraw = FALSE;
 780 }