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->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     const struct wined3d_d3d_info *d3d_info = context->d3d_info;
 102     const struct wined3d_ffp_attrib_ops *ops = &d3d_info->ffp_attrib_ops;
 103     UINT texture_stages = d3d_info->limits.ffp_blend_stages;
 104     const struct wined3d_stream_info_element *element;
 105     UINT num_untracked_materials;
 106     DWORD tex_mask = 0;
 107
 108     TRACE_(d3d_perf)("Using slow vertex array code\n");
 109
 110     /* Variable Initialization */
 111     if (idxSize)
 112     {
 113         /* Immediate mode drawing can't make use of indices in a vbo - get the
 114          * data from the index buffer. If the index buffer has no vbo (not
 115          * supported or other reason), or with user pointer drawing idxData
 116          * will be non-NULL. */
 117         if (!idxData)
 118             idxData = buffer_get_sysmem(state->index_buffer, gl_info);
 119
 120         if (idxSize == 2) pIdxBufS = idxData;
 121         else pIdxBufL = idxData;
 122     } else if (idxData) {
 123         ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
 124         return;
 125     }
 126
 127     /* Start drawing in GL */
 128     gl_info->gl_ops.gl.p_glBegin(glPrimType);
 129
 130     if (si->use_map & (1 << WINED3D_FFP_POSITION))
 131     {
 132         element = &si->elements[WINED3D_FFP_POSITION];
 133         position = element->data.addr;
 134     }
 135
 136     if (si->use_map & (1 << WINED3D_FFP_NORMAL))
 137     {
 138         element = &si->elements[WINED3D_FFP_NORMAL];
 139         normal = element->data.addr;
 140     }
 141     else
 142     {
 143         gl_info->gl_ops.gl.p_glNormal3f(0, 0, 0);
 144     }
 145
 146     num_untracked_materials = context->num_untracked_materials;
 147     if (si->use_map & (1 << WINED3D_FFP_DIFFUSE))
 148     {
 149         element = &si->elements[WINED3D_FFP_DIFFUSE];
 150         diffuse = element->data.addr;
 151
 152         if (num_untracked_materials && element->format->id != WINED3DFMT_B8G8R8A8_UNORM)
 153             FIXME("Implement diffuse color tracking from %s\n", debug_d3dformat(element->format->id));
 154     }
 155     else
 156     {
 157         gl_info->gl_ops.gl.p_glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 158     }
 159
 160     if (si->use_map & (1 << WINED3D_FFP_SPECULAR))
 161     {
 162         element = &si->elements[WINED3D_FFP_SPECULAR];
 163         specular = element->data.addr;
 164
 165         /* special case where the fog density is stored in the specular alpha channel */
 166         if (state->render_states[WINED3D_RS_FOGENABLE]
 167                 && (state->render_states[WINED3D_RS_FOGVERTEXMODE] == WINED3D_FOG_NONE
 168                     || si->elements[WINED3D_FFP_POSITION].format->id == WINED3DFMT_R32G32B32A32_FLOAT)
 169                 && state->render_states[WINED3D_RS_FOGTABLEMODE] == WINED3D_FOG_NONE)
 170         {
 171             if (gl_info->supported[EXT_FOG_COORD])
 172             {
 173                 if (element->format->id == WINED3DFMT_B8G8R8A8_UNORM) specular_fog = TRUE;
 174                 else FIXME("Implement fog coordinates from %s\n", debug_d3dformat(element->format->id));
 175             }
 176             else
 177             {
 178                 static BOOL warned;
 179
 180                 if (!warned)
 181                 {
 182                     /* TODO: Use the fog table code from old ddraw */
 183                     FIXME("Implement fog for transformed vertices in software\n");
 184                     warned = TRUE;
 185                 }
 186             }
 187         }
 188     }
 189     else if (gl_info->supported[EXT_SECONDARY_COLOR])
 190     {
 191         GL_EXTCALL(glSecondaryColor3fEXT)(0, 0, 0);
 192     }
 193
 194     for (textureNo = 0; textureNo < texture_stages; ++textureNo)
 195     {
 196         int coordIdx = state->texture_states[textureNo][WINED3D_TSS_TEXCOORD_INDEX];
 197         DWORD texture_idx = device->texUnitMap[textureNo];
 198
 199         if (!gl_info->supported[ARB_MULTITEXTURE] && textureNo > 0)
 200         {
 201             FIXME("Program using multiple concurrent textures which this opengl implementation doesn't support\n");
 202             continue;
 203         }
 204
 205         if (!pixelShader && !state->textures[textureNo]) continue;
 206
 207         if (texture_idx == WINED3D_UNMAPPED_STAGE) continue;
 208
 209         if (coordIdx > 7)
 210         {
 211             TRACE("tex: %d - Skip tex coords, as being system generated\n", textureNo);
 212             continue;
 213         }
 214         else if (coordIdx < 0)
 215         {
 216             FIXME("tex: %d - Coord index %d is less than zero, expect a crash.\n", textureNo, coordIdx);
 217             continue;
 218         }
 219
 220         if (si->use_map & (1 << (WINED3D_FFP_TEXCOORD0 + coordIdx)))
 221         {
 222             element = &si->elements[WINED3D_FFP_TEXCOORD0 + coordIdx];
 223             texCoords[coordIdx] = element->data.addr;
 224             tex_mask |= (1 << textureNo);
 225         }
 226         else
 227         {
 228             TRACE("tex: %d - Skipping tex coords, as no data supplied\n", textureNo);
 229             if (gl_info->supported[ARB_MULTITEXTURE])
 230                 GL_EXTCALL(glMultiTexCoord4fARB(GL_TEXTURE0_ARB + texture_idx, 0, 0, 0, 1));
 231             else
 232                 gl_info->gl_ops.gl.p_glTexCoord4f(0, 0, 0, 1);
 233         }
 234     }
 235
 236     /* We shouldn't start this function if any VBO is involved. Should I put a safety check here?
 237      * Guess it's not necessary(we crash then anyway) and would only eat CPU time
 238      */
 239
 240     /* For each primitive */
 241     for (vx_index = 0; vx_index < NumVertexes; ++vx_index) {
 242         UINT texture, tmp_tex_mask;
 243         /* Blending data and Point sizes are not supported by this function. They are not supported by the fixed
 244          * function pipeline at all. A Fixme for them is printed after decoding the vertex declaration
 245          */
 246
 247         /* For indexed data, we need to go a few more strides in */
 248         if (idxData)
 249         {
 250             /* Indexed so work out the number of strides to skip */
 251             if (idxSize == 2)
 252                 SkipnStrides = pIdxBufS[startIdx + vx_index] + state->base_vertex_index;
 253             else
 254                 SkipnStrides = pIdxBufL[startIdx + vx_index] + state->base_vertex_index;
 255         }
 256
 257         tmp_tex_mask = tex_mask;
 258         for (texture = 0; tmp_tex_mask; tmp_tex_mask >>= 1, ++texture)
 259         {
 260             int coord_idx;
 261             const void *ptr;
 262             DWORD texture_idx;
 263
 264             if (!(tmp_tex_mask & 1)) continue;
 265
 266             coord_idx = state->texture_states[texture][WINED3D_TSS_TEXCOORD_INDEX];
 267             ptr = texCoords[coord_idx] + (SkipnStrides * si->elements[WINED3D_FFP_TEXCOORD0 + coord_idx].stride);
 268
 269             texture_idx = device->texUnitMap[texture];
 270             ops->texcoord[si->elements[WINED3D_FFP_TEXCOORD0 + coord_idx].format->emit_idx](
 271                     GL_TEXTURE0_ARB + texture_idx, ptr);
 272         }
 273
 274         /* Diffuse -------------------------------- */
 275         if (diffuse)
 276         {
 277             const void *ptrToCoords = diffuse + SkipnStrides * si->elements[WINED3D_FFP_DIFFUSE].stride;
 278             ops->diffuse[si->elements[WINED3D_FFP_DIFFUSE].format->emit_idx](ptrToCoords);
 279
 280             if (num_untracked_materials)
 281             {
 282                 DWORD diffuseColor = ((const DWORD *)ptrToCoords)[0];
 283                 unsigned char i;
 284                 float color[4];
 285
 286                 color[0] = D3DCOLOR_B_R(diffuseColor) / 255.0f;
 287                 color[1] = D3DCOLOR_B_G(diffuseColor) / 255.0f;
 288                 color[2] = D3DCOLOR_B_B(diffuseColor) / 255.0f;
 289                 color[3] = D3DCOLOR_B_A(diffuseColor) / 255.0f;
 290
 291                 for (i = 0; i < num_untracked_materials; ++i)
 292                 {
 293                     gl_info->gl_ops.gl.p_glMaterialfv(GL_FRONT_AND_BACK, context->untracked_materials[i], color);
 294                 }
 295             }
 296         }
 297
 298         /* Specular ------------------------------- */
 299         if (specular)
 300         {
 301             const void *ptrToCoords = specular + SkipnStrides * si->elements[WINED3D_FFP_SPECULAR].stride;
 302             ops->specular[si->elements[WINED3D_FFP_SPECULAR].format->emit_idx](ptrToCoords);
 303
 304             if (specular_fog)
 305             {
 306                 DWORD specularColor = *(const DWORD *)ptrToCoords;
 307                 GL_EXTCALL(glFogCoordfEXT((float) (specularColor >> 24)));
 308             }
 309         }
 310
 311         /* Normal -------------------------------- */
 312         if (normal)
 313         {
 314             const void *ptrToCoords = normal + SkipnStrides * si->elements[WINED3D_FFP_NORMAL].stride;
 315             ops->normal[si->elements[WINED3D_FFP_NORMAL].format->emit_idx](ptrToCoords);
 316         }
 317
 318         /* Position -------------------------------- */
 319         if (position)
 320         {
 321             const void *ptrToCoords = position + SkipnStrides * si->elements[WINED3D_FFP_POSITION].stride;
 322             ops->position[si->elements[WINED3D_FFP_POSITION].format->emit_idx](ptrToCoords);
 323         }
 324
 325         /* For non indexed mode, step onto next parts */
 326         if (!idxData) ++SkipnStrides;
 327     }
 328
 329     gl_info->gl_ops.gl.p_glEnd();
 330     checkGLcall("glEnd and previous calls");
 331 }
 332
 333 /* Context activation is done by the caller. */
 334 static inline void send_attribute(const struct wined3d_gl_info *gl_info,
 335         enum wined3d_format_id format, const UINT index, const void *ptr)
 336 {
 337     switch(format)
 338     {
 339         case WINED3DFMT_R32_FLOAT:
 340             GL_EXTCALL(glVertexAttrib1fvARB(index, ptr));
 341             break;
 342         case WINED3DFMT_R32G32_FLOAT:
 343             GL_EXTCALL(glVertexAttrib2fvARB(index, ptr));
 344             break;
 345         case WINED3DFMT_R32G32B32_FLOAT:
 346             GL_EXTCALL(glVertexAttrib3fvARB(index, ptr));
 347             break;
 348         case WINED3DFMT_R32G32B32A32_FLOAT:
 349             GL_EXTCALL(glVertexAttrib4fvARB(index, ptr));
 350             break;
 351
 352         case WINED3DFMT_R8G8B8A8_UINT:
 353             GL_EXTCALL(glVertexAttrib4ubvARB(index, ptr));
 354             break;
 355         case WINED3DFMT_B8G8R8A8_UNORM:
 356             if (gl_info->supported[ARB_VERTEX_ARRAY_BGRA])
 357             {
 358                 const DWORD *src = ptr;
 359                 DWORD c = *src & 0xff00ff00;
 360                 c |= (*src & 0xff0000) >> 16;
 361                 c |= (*src & 0xff) << 16;
 362                 GL_EXTCALL(glVertexAttrib4NubvARB(index, (GLubyte *)&c));
 363                 break;
 364             }
 365             /* else fallthrough */
 366         case WINED3DFMT_R8G8B8A8_UNORM:
 367             GL_EXTCALL(glVertexAttrib4NubvARB(index, ptr));
 368             break;
 369
 370         case WINED3DFMT_R16G16_SINT:
 371             GL_EXTCALL(glVertexAttrib4svARB(index, ptr));
 372             break;
 373         case WINED3DFMT_R16G16B16A16_SINT:
 374             GL_EXTCALL(glVertexAttrib4svARB(index, ptr));
 375             break;
 376
 377         case WINED3DFMT_R16G16_SNORM:
 378         {
 379             GLshort s[4] = {((const GLshort *)ptr)[0], ((const GLshort *)ptr)[1], 0, 1};
 380             GL_EXTCALL(glVertexAttrib4NsvARB(index, s));
 381             break;
 382         }
 383         case WINED3DFMT_R16G16_UNORM:
 384         {
 385             GLushort s[4] = {((const GLushort *)ptr)[0], ((const GLushort *)ptr)[1], 0, 1};
 386             GL_EXTCALL(glVertexAttrib4NusvARB(index, s));
 387             break;
 388         }
 389         case WINED3DFMT_R16G16B16A16_SNORM:
 390             GL_EXTCALL(glVertexAttrib4NsvARB(index, ptr));
 391             break;
 392         case WINED3DFMT_R16G16B16A16_UNORM:
 393             GL_EXTCALL(glVertexAttrib4NusvARB(index, ptr));
 394             break;
 395
 396         case WINED3DFMT_R10G10B10A2_UINT:
 397             FIXME("Unsure about WINED3DDECLTYPE_UDEC3\n");
 398             /*glVertexAttrib3usvARB(instancedData[j], (GLushort *) ptr); Does not exist */
 399             break;
 400         case WINED3DFMT_R10G10B10A2_SNORM:
 401             FIXME("Unsure about WINED3DDECLTYPE_DEC3N\n");
 402             /*glVertexAttrib3NusvARB(instancedData[j], (GLushort *) ptr); Does not exist */
 403             break;
 404
 405         case WINED3DFMT_R16G16_FLOAT:
 406             /* Are those 16 bit floats. C doesn't have a 16 bit float type. I could read the single bits and calculate a 4
 407              * byte float according to the IEEE standard
 408              */
 409             if (gl_info->supported[NV_HALF_FLOAT] && gl_info->supported[NV_VERTEX_PROGRAM])
 410             {
 411                 /* Not supported by GL_ARB_half_float_vertex */
 412                 GL_EXTCALL(glVertexAttrib2hvNV(index, ptr));
 413             }
 414             else
 415             {
 416                 float x = float_16_to_32(((const unsigned short *)ptr) + 0);
 417                 float y = float_16_to_32(((const unsigned short *)ptr) + 1);
 418                 GL_EXTCALL(glVertexAttrib2fARB(index, x, y));
 419             }
 420             break;
 421         case WINED3DFMT_R16G16B16A16_FLOAT:
 422             if (gl_info->supported[NV_HALF_FLOAT] && gl_info->supported[NV_VERTEX_PROGRAM])
 423             {
 424                 /* Not supported by GL_ARB_half_float_vertex */
 425                 GL_EXTCALL(glVertexAttrib4hvNV(index, ptr));
 426             }
 427             else
 428             {
 429                 float x = float_16_to_32(((const unsigned short *)ptr) + 0);
 430                 float y = float_16_to_32(((const unsigned short *)ptr) + 1);
 431                 float z = float_16_to_32(((const unsigned short *)ptr) + 2);
 432                 float w = float_16_to_32(((const unsigned short *)ptr) + 3);
 433                 GL_EXTCALL(glVertexAttrib4fARB(index, x, y, z, w));
 434             }
 435             break;
 436
 437         default:
 438             ERR("Unexpected attribute format: %s\n", debug_d3dformat(format));
 439             break;
 440     }
 441 }
 442
 443 /* Context activation is done by the caller. */
 444 static void drawStridedSlowVs(const struct wined3d_gl_info *gl_info, const struct wined3d_state *state,
 445         const struct wined3d_stream_info *si, UINT numberOfVertices, GLenum glPrimitiveType,
 446         const void *idxData, UINT idxSize, UINT startIdx)
 447 {
 448     LONG SkipnStrides = startIdx + state->load_base_vertex_index;
 449     const DWORD *pIdxBufL = NULL;
 450     const WORD *pIdxBufS = NULL;
 451     UINT vx_index;
 452     int i;
 453     const BYTE *ptr;
 454
 455     if (idxSize)
 456     {
 457         /* Immediate mode drawing can't make use of indices in a vbo - get the
 458          * data from the index buffer. If the index buffer has no vbo (not
 459          * supported or other reason), or with user pointer drawing idxData
 460          * will be non-NULL. */
 461         if (!idxData)
 462             idxData = buffer_get_sysmem(state->index_buffer, gl_info);
 463
 464         if (idxSize == 2) pIdxBufS = idxData;
 465         else pIdxBufL = idxData;
 466     } else if (idxData) {
 467         ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
 468         return;
 469     }
 470
 471     /* Start drawing in GL */
 472     gl_info->gl_ops.gl.p_glBegin(glPrimitiveType);
 473
 474     for (vx_index = 0; vx_index < numberOfVertices; ++vx_index)
 475     {
 476         if (idxData)
 477         {
 478             /* Indexed so work out the number of strides to skip */
 479             if (idxSize == 2)
 480                 SkipnStrides = pIdxBufS[startIdx + vx_index] + state->load_base_vertex_index;
 481             else
 482                 SkipnStrides = pIdxBufL[startIdx + vx_index] + state->load_base_vertex_index;
 483         }
 484
 485         for (i = MAX_ATTRIBS - 1; i >= 0; i--)
 486         {
 487             if (!(si->use_map & (1 << i))) continue;
 488
 489             ptr = si->elements[i].data.addr + si->elements[i].stride * SkipnStrides;
 490
 491             send_attribute(gl_info, si->elements[i].format->id, i, ptr);
 492         }
 493         SkipnStrides++;
 494     }
 495
 496     gl_info->gl_ops.gl.p_glEnd();
 497 }
 498
 499 /* Context activation is done by the caller. */
 500 static void drawStridedInstanced(const struct wined3d_gl_info *gl_info, const struct wined3d_state *state,
 501         const struct wined3d_stream_info *si, UINT numberOfVertices, GLenum glPrimitiveType,
 502         const void *idxData, UINT idxSize, UINT startIdx, UINT base_vertex_index, UINT instance_count)
 503 {
 504     int numInstancedAttribs = 0, j;
 505     UINT instancedData[sizeof(si->elements) / sizeof(*si->elements) /* 16 */];
 506     GLenum idxtype = idxSize == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT;
 507     UINT i;
 508
 509     if (!idxSize)
 510     {
 511         /* This is a nasty thing. MSDN says no hardware supports that and apps have to use software vertex processing.
 512          * We don't support this for now
 513          *
 514          * Shouldn't be too hard to support with opengl, in theory just call glDrawArrays instead of drawElements.
 515          * But the StreamSourceFreq value has a different meaning in that situation.
 516          */
 517         FIXME("Non-indexed instanced drawing is not supported\n");
 518         return;
 519     }
 520
 521     for (i = 0; i < sizeof(si->elements) / sizeof(*si->elements); ++i)
 522     {
 523         if (!(si->use_map & (1 << i))) continue;
 524
 525         if (state->streams[si->elements[i].stream_idx].flags & WINED3DSTREAMSOURCE_INSTANCEDATA)
 526         {
 527             instancedData[numInstancedAttribs] = i;
 528             numInstancedAttribs++;
 529         }
 530     }
 531
 532     for (i = 0; i < instance_count; ++i)
 533     {
 534         /* Specify the instanced attributes using immediate mode calls */
 535         for(j = 0; j < numInstancedAttribs; j++) {
 536             const BYTE *ptr = si->elements[instancedData[j]].data.addr
 537                     + si->elements[instancedData[j]].stride * i;
 538             if (si->elements[instancedData[j]].data.buffer_object)
 539             {
 540                 struct wined3d_buffer *vb = state->streams[si->elements[instancedData[j]].stream_idx].buffer;
 541                 ptr += (ULONG_PTR)buffer_get_sysmem(vb, gl_info);
 542             }
 543
 544             send_attribute(gl_info, si->elements[instancedData[j]].format->id, instancedData[j], ptr);
 545         }
 546
 547         if (gl_info->supported[ARB_DRAW_ELEMENTS_BASE_VERTEX])
 548         {
 549             GL_EXTCALL(glDrawElementsBaseVertex(glPrimitiveType, numberOfVertices, idxtype,
 550                         (const char *)idxData+(idxSize * startIdx), base_vertex_index));
 551             checkGLcall("glDrawElementsBaseVertex");
 552         }
 553         else
 554         {
 555             gl_info->gl_ops.gl.p_glDrawElements(glPrimitiveType, numberOfVertices, idxtype,
 556                         (const char *)idxData + (idxSize * startIdx));
 557             checkGLcall("glDrawElements");
 558         }
 559     }
 560 }
 561
 562 static void remove_vbos(const struct wined3d_gl_info *gl_info,
 563         const struct wined3d_state *state, struct wined3d_stream_info *s)
 564 {
 565     unsigned int i;
 566
 567     for (i = 0; i < (sizeof(s->elements) / sizeof(*s->elements)); ++i)
 568     {
 569         struct wined3d_stream_info_element *e;
 570
 571         if (!(s->use_map & (1 << i))) continue;
 572
 573         e = &s->elements[i];
 574         if (e->data.buffer_object)
 575         {
 576             struct wined3d_buffer *vb = state->streams[e->stream_idx].buffer;
 577             e->data.buffer_object = 0;
 578             e->data.addr = (BYTE *)((ULONG_PTR)e->data.addr + (ULONG_PTR)buffer_get_sysmem(vb, gl_info));
 579         }
 580     }
 581 }
 582
 583 /* Routine common to the draw primitive and draw indexed primitive routines */
 584 void draw_primitive(struct wined3d_device *device, UINT start_idx, UINT index_count,
 585         UINT start_instance, UINT instance_count, BOOL indexed)
 586 {
 587     const struct wined3d_state *state = &device->state;
 588     const struct wined3d_stream_info *stream_info;
 589     struct wined3d_event_query *ib_query = NULL;
 590     struct wined3d_stream_info si_emulated;
 591     const struct wined3d_gl_info *gl_info;
 592     struct wined3d_context *context;
 593     BOOL emulation = FALSE;
 594     const void *idx_data = NULL;
 595     UINT idx_size = 0;
 596     unsigned int i;
 597
 598     if (!index_count) return;
 599
 600     if (state->render_states[WINED3D_RS_COLORWRITEENABLE])
 601     {
 602         /* Invalidate the back buffer memory so LockRect will read it the next time */
 603         for (i = 0; i < device->adapter->gl_info.limits.buffers; ++i)
 604         {
 605             struct wined3d_surface *target = device->fb.render_targets[i];
 606             if (target)
 607             {
 608                 surface_load_location(target, target->draw_binding, NULL);
 609                 surface_modify_location(target, target->draw_binding, TRUE);
 610             }
 611         }
 612     }
 613
 614     /* Signals other modules that a drawing is in progress and the stateblock finalized */
 615     device->isInDraw = TRUE;
 616
 617     context = context_acquire(device, device->fb.render_targets[0]);
 618     if (!context->valid)
 619     {
 620         context_release(context);
 621         WARN("Invalid context, skipping draw.\n");
 622         return;
 623     }
 624     gl_info = context->gl_info;
 625
 626     if (device->fb.depth_stencil)
 627     {
 628         /* Note that this depends on the context_acquire() call above to set
 629          * context->render_offscreen properly. We don't currently take the
 630          * Z-compare function into account, but we could skip loading the
 631          * depthstencil for D3DCMP_NEVER and D3DCMP_ALWAYS as well. Also note
 632          * that we never copy the stencil data.*/
 633         DWORD location = context->render_offscreen ? device->fb.depth_stencil->draw_binding : SFLAG_INDRAWABLE;
 634         if (state->render_states[WINED3D_RS_ZWRITEENABLE] || state->render_states[WINED3D_RS_ZENABLE])
 635         {
 636             struct wined3d_surface *ds = device->fb.depth_stencil;
 637             RECT current_rect, draw_rect, r;
 638
 639             if (!context->render_offscreen && ds != device->onscreen_depth_stencil)
 640                 device_switch_onscreen_ds(device, context, ds);
 641
 642             if (ds->flags & location)
 643                 SetRect(&current_rect, 0, 0, ds->ds_current_size.cx, ds->ds_current_size.cy);
 644             else
 645                 SetRectEmpty(&current_rect);
 646
 647             wined3d_get_draw_rect(state, &draw_rect);
 648
 649             IntersectRect(&r, &draw_rect, &current_rect);
 650             if (!EqualRect(&r, &draw_rect))
 651                 surface_load_ds_location(ds, context, location);
 652         }
 653     }
 654
 655     if (!context_apply_draw_state(context, device))
 656     {
 657         context_release(context);
 658         WARN("Unable to apply draw state, skipping draw.\n");
 659         return;
 660     }
 661
 662     if (device->fb.depth_stencil && state->render_states[WINED3D_RS_ZWRITEENABLE])
 663     {
 664         struct wined3d_surface *ds = device->fb.depth_stencil;
 665         DWORD location = context->render_offscreen ? ds->draw_binding : SFLAG_INDRAWABLE;
 666
 667         surface_modify_ds_location(ds, location, ds->ds_current_size.cx, ds->ds_current_size.cy);
 668     }
 669
 670     if ((!gl_info->supported[WINED3D_GL_VERSION_2_0]
 671             || !gl_info->supported[NV_POINT_SPRITE])
 672             && context->render_offscreen
 673             && state->render_states[WINED3D_RS_POINTSPRITEENABLE]
 674             && state->gl_primitive_type == GL_POINTS)
 675     {
 676         FIXME("Point sprite coordinate origin switching not supported.\n");
 677     }
 678
 679     stream_info = &device->stream_info;
 680     if (device->instance_count)
 681         instance_count = device->instance_count;
 682
 683     if (indexed)
 684     {
 685         struct wined3d_buffer *index_buffer = state->index_buffer;
 686         if (!index_buffer->buffer_object || !stream_info->all_vbo)
 687             idx_data = index_buffer->resource.allocatedMemory;
 688         else
 689         {
 690             ib_query = index_buffer->query;
 691             idx_data = NULL;
 692         }
 693
 694         if (state->index_format == WINED3DFMT_R16_UINT)
 695             idx_size = 2;
 696         else
 697             idx_size = 4;
 698     }
 699
 700     if (!use_vs(state))
 701     {
 702         if (!stream_info->position_transformed && context->num_untracked_materials
 703                 && state->render_states[WINED3D_RS_LIGHTING])
 704         {
 705             static BOOL warned;
 706
 707             if (!warned++)
 708                 FIXME("Using software emulation because not all material properties could be tracked.\n");
 709             else
 710                 WARN_(d3d_perf)("Using software emulation because not all material properties could be tracked.\n");
 711             emulation = TRUE;
 712         }
 713         else if (context->fog_coord && state->render_states[WINED3D_RS_FOGENABLE])
 714         {
 715             static BOOL warned;
 716
 717             /* Either write a pipeline replacement shader or convert the
 718              * specular alpha from unsigned byte to a float in the vertex
 719              * buffer. */
 720             if (!warned++)
 721                 FIXME("Using software emulation because manual fog coordinates are provided.\n");
 722             else
 723                 WARN_(d3d_perf)("Using software emulation because manual fog coordinates are provided.\n");
 724             emulation = TRUE;
 725         }
 726
 727         if (emulation)
 728         {
 729             si_emulated = device->stream_info;
 730             remove_vbos(gl_info, state, &si_emulated);
 731             stream_info = &si_emulated;
 732         }
 733     }
 734
 735     if (device->useDrawStridedSlow || emulation)
 736     {
 737         /* Immediate mode drawing. */
 738         if (use_vs(state))
 739         {
 740             static BOOL warned;
 741
 742             if (!warned++)
 743                 FIXME("Using immediate mode with vertex shaders for half float emulation.\n");
 744             else
 745                 WARN_(d3d_perf)("Using immediate mode with vertex shaders for half float emulation.\n");
 746
 747             drawStridedSlowVs(gl_info, state, stream_info, index_count,
 748                     state->gl_primitive_type, idx_data, idx_size, start_idx);
 749         }
 750         else
 751         {
 752             drawStridedSlow(device, context, stream_info, index_count,
 753                     state->gl_primitive_type, idx_data, idx_size, start_idx);
 754         }
 755     }
 756     else if (!gl_info->supported[ARB_INSTANCED_ARRAYS] && instance_count)
 757     {
 758         /* Instancing emulation by mixing immediate mode and arrays. */
 759         drawStridedInstanced(gl_info, state, stream_info, index_count, state->gl_primitive_type,
 760                 idx_data, idx_size, start_idx, state->base_vertex_index, instance_count);
 761     }
 762     else
 763     {
 764         drawStridedFast(gl_info, state->gl_primitive_type, index_count, idx_size, idx_data,
 765                 start_idx, state->base_vertex_index, start_instance, instance_count);
 766     }
 767
 768     if (ib_query)
 769         wined3d_event_query_issue(ib_query, device);
 770     for (i = 0; i < device->num_buffer_queries; ++i)
 771     {
 772         wined3d_event_query_issue(device->buffer_queries[i], device);
 773     }
 774
 775     if (wined3d_settings.strict_draw_ordering)
 776         gl_info->gl_ops.gl.p_glFlush(); /* Flush to ensure ordering across contexts. */
 777
 778     context_release(context);
 779
 780     TRACE("Done all gl drawing\n");
 781
 782     /* Control goes back to the device, stateblock values may change again */
 783     device->isInDraw = FALSE;
 784 }