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] && !gl_info->supported[ARB_INSTANCED_ARRAYS])
  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                 if (gl_info->supported[ARB_DRAW_ELEMENTS_BASE_VERTEX])
  56                 {
  57                     GL_EXTCALL(glDrawElementsInstancedBaseVertex(primitive_type, count, idxtype,
  58                             (const char *)idx_data + (idx_size * start_idx), instance_count, base_vertex_index));
  59                     checkGLcall("glDrawElementsInstancedBaseVertex");
  60                 }
  61                 else
  62                 {
  63                     GL_EXTCALL(glDrawElementsInstanced(primitive_type, count, idxtype,
  64                             (const char *)idx_data + (idx_size * start_idx), instance_count));
  65                     checkGLcall("glDrawElementsInstanced");
  66                 }
  67             }
  68         }
  69         else if (gl_info->supported[ARB_DRAW_ELEMENTS_BASE_VERTEX])
  70         {
  71             GL_EXTCALL(glDrawElementsBaseVertex(primitive_type, count, idxtype,
  72                     (const char *)idx_data + (idx_size * start_idx), base_vertex_index));
  73             checkGLcall("glDrawElementsBaseVertex");
  74         }
  75         else
  76         {
  77             gl_info->gl_ops.gl.p_glDrawElements(primitive_type, count,
  78                     idxtype, (const char *)idx_data + (idx_size * start_idx));
  79             checkGLcall("glDrawElements");
  80         }
  81     }
  82     else
  83     {
  84         gl_info->gl_ops.gl.p_glDrawArrays(primitive_type, start_idx, count);
  85         checkGLcall("glDrawArrays");
  86     }
  87 }
  88
  89 /*
  90  * Actually draw using the supplied information.
  91  * Slower GL version which extracts info about each vertex in turn
  92  */
  93
  94 /* Context activation is done by the caller. */
  95 static void drawStridedSlow(const struct wined3d_device *device, struct wined3d_context *context,
  96         const struct wined3d_stream_info *si, UINT NumVertexes, GLenum glPrimType,
  97         const void *idxData, UINT idxSize, UINT startIdx)
  98 {
  99     unsigned int               textureNo    = 0;
 100     const WORD                *pIdxBufS     = NULL;
 101     const DWORD               *pIdxBufL     = NULL;
 102     UINT vx_index;
 103     const struct wined3d_state *state = &device->state;
 104     LONG SkipnStrides = startIdx;
 105     BOOL pixelShader = use_ps(state);
 106     BOOL specular_fog = FALSE;
 107     const BYTE *texCoords[WINED3DDP_MAXTEXCOORD];
 108     const BYTE *diffuse = NULL, *specular = NULL, *normal = NULL, *position = NULL;
 109     const struct wined3d_gl_info *gl_info = context->gl_info;
 110     const struct wined3d_d3d_info *d3d_info = context->d3d_info;
 111     const struct wined3d_ffp_attrib_ops *ops = &d3d_info->ffp_attrib_ops;
 112     UINT texture_stages = d3d_info->limits.ffp_blend_stages;
 113     const struct wined3d_stream_info_element *element;
 114     UINT num_untracked_materials;
 115     DWORD tex_mask = 0;
 116
 117     TRACE_(d3d_perf)("Using slow vertex array code\n");
 118
 119     /* Variable Initialization */
 120     if (idxSize)
 121     {
 122         /* Immediate mode drawing can't make use of indices in a vbo - get the
 123          * data from the index buffer. If the index buffer has no vbo (not
 124          * supported or other reason), or with user pointer drawing idxData
 125          * will be non-NULL. */
 126         if (!idxData)
 127             idxData = buffer_get_sysmem(state->index_buffer, context);
 128
 129         if (idxSize == 2) pIdxBufS = idxData;
 130         else pIdxBufL = idxData;
 131     } else if (idxData) {
 132         ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
 133         return;
 134     }
 135
 136     /* Start drawing in GL */
 137     gl_info->gl_ops.gl.p_glBegin(glPrimType);
 138
 139     if (si->use_map & (1 << WINED3D_FFP_POSITION))
 140     {
 141         element = &si->elements[WINED3D_FFP_POSITION];
 142         position = element->data.addr;
 143     }
 144
 145     if (si->use_map & (1 << WINED3D_FFP_NORMAL))
 146     {
 147         element = &si->elements[WINED3D_FFP_NORMAL];
 148         normal = element->data.addr;
 149     }
 150     else
 151     {
 152         gl_info->gl_ops.gl.p_glNormal3f(0, 0, 0);
 153     }
 154
 155     num_untracked_materials = context->num_untracked_materials;
 156     if (si->use_map & (1 << WINED3D_FFP_DIFFUSE))
 157     {
 158         element = &si->elements[WINED3D_FFP_DIFFUSE];
 159         diffuse = element->data.addr;
 160
 161         if (num_untracked_materials && element->format->id != WINED3DFMT_B8G8R8A8_UNORM)
 162             FIXME("Implement diffuse color tracking from %s\n", debug_d3dformat(element->format->id));
 163     }
 164     else
 165     {
 166         gl_info->gl_ops.gl.p_glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
 167     }
 168
 169     if (si->use_map & (1 << WINED3D_FFP_SPECULAR))
 170     {
 171         element = &si->elements[WINED3D_FFP_SPECULAR];
 172         specular = element->data.addr;
 173
 174         /* special case where the fog density is stored in the specular alpha channel */
 175         if (state->render_states[WINED3D_RS_FOGENABLE]
 176                 && (state->render_states[WINED3D_RS_FOGVERTEXMODE] == WINED3D_FOG_NONE
 177                     || si->elements[WINED3D_FFP_POSITION].format->id == WINED3DFMT_R32G32B32A32_FLOAT)
 178                 && state->render_states[WINED3D_RS_FOGTABLEMODE] == WINED3D_FOG_NONE)
 179         {
 180             if (gl_info->supported[EXT_FOG_COORD])
 181             {
 182                 if (element->format->id == WINED3DFMT_B8G8R8A8_UNORM) specular_fog = TRUE;
 183                 else FIXME("Implement fog coordinates from %s\n", debug_d3dformat(element->format->id));
 184             }
 185             else
 186             {
 187                 static BOOL warned;
 188
 189                 if (!warned)
 190                 {
 191                     /* TODO: Use the fog table code from old ddraw */
 192                     FIXME("Implement fog for transformed vertices in software\n");
 193                     warned = TRUE;
 194                 }
 195             }
 196         }
 197     }
 198     else if (gl_info->supported[EXT_SECONDARY_COLOR])
 199     {
 200         GL_EXTCALL(glSecondaryColor3fEXT)(0, 0, 0);
 201     }
 202
 203     for (textureNo = 0; textureNo < texture_stages; ++textureNo)
 204     {
 205         int coordIdx = state->texture_states[textureNo][WINED3D_TSS_TEXCOORD_INDEX];
 206         DWORD texture_idx = context->tex_unit_map[textureNo];
 207
 208         if (!gl_info->supported[ARB_MULTITEXTURE] && textureNo > 0)
 209         {
 210             FIXME("Program using multiple concurrent textures which this opengl implementation doesn't support\n");
 211             continue;
 212         }
 213
 214         if (!pixelShader && !state->textures[textureNo]) continue;
 215
 216         if (texture_idx == WINED3D_UNMAPPED_STAGE) continue;
 217
 218         if (coordIdx > 7)
 219         {
 220             TRACE("tex: %d - Skip tex coords, as being system generated\n", textureNo);
 221             continue;
 222         }
 223         else if (coordIdx < 0)
 224         {
 225             FIXME("tex: %d - Coord index %d is less than zero, expect a crash.\n", textureNo, coordIdx);
 226             continue;
 227         }
 228
 229         if (si->use_map & (1 << (WINED3D_FFP_TEXCOORD0 + coordIdx)))
 230         {
 231             element = &si->elements[WINED3D_FFP_TEXCOORD0 + coordIdx];
 232             texCoords[coordIdx] = element->data.addr;
 233             tex_mask |= (1 << textureNo);
 234         }
 235         else
 236         {
 237             TRACE("tex: %d - Skipping tex coords, as no data supplied\n", textureNo);
 238             if (gl_info->supported[ARB_MULTITEXTURE])
 239                 GL_EXTCALL(glMultiTexCoord4fARB(GL_TEXTURE0_ARB + texture_idx, 0, 0, 0, 1));
 240             else
 241                 gl_info->gl_ops.gl.p_glTexCoord4f(0, 0, 0, 1);
 242         }
 243     }
 244
 245     /* We shouldn't start this function if any VBO is involved. Should I put a safety check here?
 246      * Guess it's not necessary(we crash then anyway) and would only eat CPU time
 247      */
 248
 249     /* For each primitive */
 250     for (vx_index = 0; vx_index < NumVertexes; ++vx_index) {
 251         UINT texture, tmp_tex_mask;
 252         /* Blending data and Point sizes are not supported by this function. They are not supported by the fixed
 253          * function pipeline at all. A Fixme for them is printed after decoding the vertex declaration
 254          */
 255
 256         /* For indexed data, we need to go a few more strides in */
 257         if (idxData)
 258         {
 259             /* Indexed so work out the number of strides to skip */
 260             if (idxSize == 2)
 261                 SkipnStrides = pIdxBufS[startIdx + vx_index] + state->base_vertex_index;
 262             else
 263                 SkipnStrides = pIdxBufL[startIdx + vx_index] + state->base_vertex_index;
 264         }
 265
 266         tmp_tex_mask = tex_mask;
 267         for (texture = 0; tmp_tex_mask; tmp_tex_mask >>= 1, ++texture)
 268         {
 269             int coord_idx;
 270             const void *ptr;
 271             DWORD texture_idx;
 272
 273             if (!(tmp_tex_mask & 1)) continue;
 274
 275             coord_idx = state->texture_states[texture][WINED3D_TSS_TEXCOORD_INDEX];
 276             ptr = texCoords[coord_idx] + (SkipnStrides * si->elements[WINED3D_FFP_TEXCOORD0 + coord_idx].stride);
 277
 278             texture_idx = context->tex_unit_map[texture];
 279             ops->texcoord[si->elements[WINED3D_FFP_TEXCOORD0 + coord_idx].format->emit_idx](
 280                     GL_TEXTURE0_ARB + texture_idx, ptr);
 281         }
 282
 283         /* Diffuse -------------------------------- */
 284         if (diffuse)
 285         {
 286             const void *ptrToCoords = diffuse + SkipnStrides * si->elements[WINED3D_FFP_DIFFUSE].stride;
 287             ops->diffuse[si->elements[WINED3D_FFP_DIFFUSE].format->emit_idx](ptrToCoords);
 288
 289             if (num_untracked_materials)
 290             {
 291                 DWORD diffuseColor = ((const DWORD *)ptrToCoords)[0];
 292                 unsigned char i;
 293                 float color[4];
 294
 295                 color[0] = D3DCOLOR_B_R(diffuseColor) / 255.0f;
 296                 color[1] = D3DCOLOR_B_G(diffuseColor) / 255.0f;
 297                 color[2] = D3DCOLOR_B_B(diffuseColor) / 255.0f;
 298                 color[3] = D3DCOLOR_B_A(diffuseColor) / 255.0f;
 299
 300                 for (i = 0; i < num_untracked_materials; ++i)
 301                 {
 302                     gl_info->gl_ops.gl.p_glMaterialfv(GL_FRONT_AND_BACK, context->untracked_materials[i], color);
 303                 }
 304             }
 305         }
 306
 307         /* Specular ------------------------------- */
 308         if (specular)
 309         {
 310             const void *ptrToCoords = specular + SkipnStrides * si->elements[WINED3D_FFP_SPECULAR].stride;
 311             ops->specular[si->elements[WINED3D_FFP_SPECULAR].format->emit_idx](ptrToCoords);
 312
 313             if (specular_fog)
 314             {
 315                 DWORD specularColor = *(const DWORD *)ptrToCoords;
 316                 GL_EXTCALL(glFogCoordfEXT((float) (specularColor >> 24)));
 317             }
 318         }
 319
 320         /* Normal -------------------------------- */
 321         if (normal)
 322         {
 323             const void *ptrToCoords = normal + SkipnStrides * si->elements[WINED3D_FFP_NORMAL].stride;
 324             ops->normal[si->elements[WINED3D_FFP_NORMAL].format->emit_idx](ptrToCoords);
 325         }
 326
 327         /* Position -------------------------------- */
 328         if (position)
 329         {
 330             const void *ptrToCoords = position + SkipnStrides * si->elements[WINED3D_FFP_POSITION].stride;
 331             ops->position[si->elements[WINED3D_FFP_POSITION].format->emit_idx](ptrToCoords);
 332         }
 333
 334         /* For non indexed mode, step onto next parts */
 335         if (!idxData) ++SkipnStrides;
 336     }
 337
 338     gl_info->gl_ops.gl.p_glEnd();
 339     checkGLcall("glEnd and previous calls");
 340 }
 341
 342 /* Context activation is done by the caller. */
 343 static inline void send_attribute(const struct wined3d_gl_info *gl_info,
 344         enum wined3d_format_id format, const UINT index, const void *ptr)
 345 {
 346     switch(format)
 347     {
 348         case WINED3DFMT_R32_FLOAT:
 349             GL_EXTCALL(glVertexAttrib1fvARB(index, ptr));
 350             break;
 351         case WINED3DFMT_R32G32_FLOAT:
 352             GL_EXTCALL(glVertexAttrib2fvARB(index, ptr));
 353             break;
 354         case WINED3DFMT_R32G32B32_FLOAT:
 355             GL_EXTCALL(glVertexAttrib3fvARB(index, ptr));
 356             break;
 357         case WINED3DFMT_R32G32B32A32_FLOAT:
 358             GL_EXTCALL(glVertexAttrib4fvARB(index, ptr));
 359             break;
 360
 361         case WINED3DFMT_R8G8B8A8_UINT:
 362             GL_EXTCALL(glVertexAttrib4ubvARB(index, ptr));
 363             break;
 364         case WINED3DFMT_B8G8R8A8_UNORM:
 365             if (gl_info->supported[ARB_VERTEX_ARRAY_BGRA])
 366             {
 367                 const DWORD *src = ptr;
 368                 DWORD c = *src & 0xff00ff00;
 369                 c |= (*src & 0xff0000) >> 16;
 370                 c |= (*src & 0xff) << 16;
 371                 GL_EXTCALL(glVertexAttrib4NubvARB(index, (GLubyte *)&c));
 372                 break;
 373             }
 374             /* else fallthrough */
 375         case WINED3DFMT_R8G8B8A8_UNORM:
 376             GL_EXTCALL(glVertexAttrib4NubvARB(index, ptr));
 377             break;
 378
 379         case WINED3DFMT_R16G16_SINT:
 380             GL_EXTCALL(glVertexAttrib4svARB(index, ptr));
 381             break;
 382         case WINED3DFMT_R16G16B16A16_SINT:
 383             GL_EXTCALL(glVertexAttrib4svARB(index, ptr));
 384             break;
 385
 386         case WINED3DFMT_R16G16_SNORM:
 387         {
 388             GLshort s[4] = {((const GLshort *)ptr)[0], ((const GLshort *)ptr)[1], 0, 1};
 389             GL_EXTCALL(glVertexAttrib4NsvARB(index, s));
 390             break;
 391         }
 392         case WINED3DFMT_R16G16_UNORM:
 393         {
 394             GLushort s[4] = {((const GLushort *)ptr)[0], ((const GLushort *)ptr)[1], 0, 1};
 395             GL_EXTCALL(glVertexAttrib4NusvARB(index, s));
 396             break;
 397         }
 398         case WINED3DFMT_R16G16B16A16_SNORM:
 399             GL_EXTCALL(glVertexAttrib4NsvARB(index, ptr));
 400             break;
 401         case WINED3DFMT_R16G16B16A16_UNORM:
 402             GL_EXTCALL(glVertexAttrib4NusvARB(index, ptr));
 403             break;
 404
 405         case WINED3DFMT_R10G10B10A2_UINT:
 406             FIXME("Unsure about WINED3DDECLTYPE_UDEC3\n");
 407             /*glVertexAttrib3usvARB(instancedData[j], (GLushort *) ptr); Does not exist */
 408             break;
 409         case WINED3DFMT_R10G10B10A2_SNORM:
 410             FIXME("Unsure about WINED3DDECLTYPE_DEC3N\n");
 411             /*glVertexAttrib3NusvARB(instancedData[j], (GLushort *) ptr); Does not exist */
 412             break;
 413
 414         case WINED3DFMT_R16G16_FLOAT:
 415             /* Are those 16 bit floats. C doesn't have a 16 bit float type. I could read the single bits and calculate a 4
 416              * byte float according to the IEEE standard
 417              */
 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(glVertexAttrib2hvNV(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                 GL_EXTCALL(glVertexAttrib2fARB(index, x, y));
 428             }
 429             break;
 430         case WINED3DFMT_R16G16B16A16_FLOAT:
 431             if (gl_info->supported[NV_HALF_FLOAT] && gl_info->supported[NV_VERTEX_PROGRAM])
 432             {
 433                 /* Not supported by GL_ARB_half_float_vertex */
 434                 GL_EXTCALL(glVertexAttrib4hvNV(index, ptr));
 435             }
 436             else
 437             {
 438                 float x = float_16_to_32(((const unsigned short *)ptr) + 0);
 439                 float y = float_16_to_32(((const unsigned short *)ptr) + 1);
 440                 float z = float_16_to_32(((const unsigned short *)ptr) + 2);
 441                 float w = float_16_to_32(((const unsigned short *)ptr) + 3);
 442                 GL_EXTCALL(glVertexAttrib4fARB(index, x, y, z, w));
 443             }
 444             break;
 445
 446         default:
 447             ERR("Unexpected attribute format: %s\n", debug_d3dformat(format));
 448             break;
 449     }
 450 }
 451
 452 /* Context activation is done by the caller. */
 453 static void drawStridedSlowVs(struct wined3d_context *context, const struct wined3d_state *state,
 454         const struct wined3d_stream_info *si, UINT numberOfVertices, GLenum glPrimitiveType,
 455         const void *idxData, UINT idxSize, UINT startIdx)
 456 {
 457     const struct wined3d_gl_info *gl_info = context->gl_info;
 458     LONG SkipnStrides = startIdx + state->load_base_vertex_index;
 459     const DWORD *pIdxBufL = NULL;
 460     const WORD *pIdxBufS = NULL;
 461     UINT vx_index;
 462     int i;
 463     const BYTE *ptr;
 464
 465     if (idxSize)
 466     {
 467         /* Immediate mode drawing can't make use of indices in a vbo - get the
 468          * data from the index buffer. If the index buffer has no vbo (not
 469          * supported or other reason), or with user pointer drawing idxData
 470          * will be non-NULL. */
 471         if (!idxData)
 472             idxData = buffer_get_sysmem(state->index_buffer, context);
 473
 474         if (idxSize == 2) pIdxBufS = idxData;
 475         else pIdxBufL = idxData;
 476     } else if (idxData) {
 477         ERR("non-NULL idxData with 0 idxSize, this should never happen\n");
 478         return;
 479     }
 480
 481     /* Start drawing in GL */
 482     gl_info->gl_ops.gl.p_glBegin(glPrimitiveType);
 483
 484     for (vx_index = 0; vx_index < numberOfVertices; ++vx_index)
 485     {
 486         if (idxData)
 487         {
 488             /* Indexed so work out the number of strides to skip */
 489             if (idxSize == 2)
 490                 SkipnStrides = pIdxBufS[startIdx + vx_index] + state->load_base_vertex_index;
 491             else
 492                 SkipnStrides = pIdxBufL[startIdx + vx_index] + state->load_base_vertex_index;
 493         }
 494
 495         for (i = MAX_ATTRIBS - 1; i >= 0; i--)
 496         {
 497             if (!(si->use_map & (1 << i))) continue;
 498
 499             ptr = si->elements[i].data.addr + si->elements[i].stride * SkipnStrides;
 500
 501             send_attribute(gl_info, si->elements[i].format->id, i, ptr);
 502         }
 503         SkipnStrides++;
 504     }
 505
 506     gl_info->gl_ops.gl.p_glEnd();
 507 }
 508
 509 /* Context activation is done by the caller. */
 510 static void drawStridedInstanced(struct wined3d_context *context, const struct wined3d_state *state,
 511         const struct wined3d_stream_info *si, UINT numberOfVertices, GLenum glPrimitiveType,
 512         const void *idxData, UINT idxSize, UINT startIdx, UINT base_vertex_index, UINT instance_count)
 513 {
 514     const struct wined3d_gl_info *gl_info = context->gl_info;
 515     int numInstancedAttribs = 0, j;
 516     UINT instancedData[sizeof(si->elements) / sizeof(*si->elements) /* 16 */];
 517     GLenum idxtype = idxSize == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT;
 518     UINT i;
 519
 520     if (!idxSize)
 521     {
 522         /* This is a nasty thing. MSDN says no hardware supports that and apps have to use software vertex processing.
 523          * We don't support this for now
 524          *
 525          * Shouldn't be too hard to support with opengl, in theory just call glDrawArrays instead of drawElements.
 526          * But the StreamSourceFreq value has a different meaning in that situation.
 527          */
 528         FIXME("Non-indexed instanced drawing is not supported\n");
 529         return;
 530     }
 531
 532     for (i = 0; i < sizeof(si->elements) / sizeof(*si->elements); ++i)
 533     {
 534         if (!(si->use_map & (1 << i))) continue;
 535
 536         if (state->streams[si->elements[i].stream_idx].flags & WINED3DSTREAMSOURCE_INSTANCEDATA)
 537         {
 538             instancedData[numInstancedAttribs] = i;
 539             numInstancedAttribs++;
 540         }
 541     }
 542
 543     for (i = 0; i < instance_count; ++i)
 544     {
 545         /* Specify the instanced attributes using immediate mode calls */
 546         for(j = 0; j < numInstancedAttribs; j++) {
 547             const BYTE *ptr = si->elements[instancedData[j]].data.addr
 548                     + si->elements[instancedData[j]].stride * i;
 549             if (si->elements[instancedData[j]].data.buffer_object)
 550             {
 551                 struct wined3d_buffer *vb = state->streams[si->elements[instancedData[j]].stream_idx].buffer;
 552                 ptr += (ULONG_PTR)buffer_get_sysmem(vb, context);
 553             }
 554
 555             send_attribute(gl_info, si->elements[instancedData[j]].format->id, instancedData[j], ptr);
 556         }
 557
 558         if (gl_info->supported[ARB_DRAW_ELEMENTS_BASE_VERTEX])
 559         {
 560             GL_EXTCALL(glDrawElementsBaseVertex(glPrimitiveType, numberOfVertices, idxtype,
 561                         (const char *)idxData+(idxSize * startIdx), base_vertex_index));
 562             checkGLcall("glDrawElementsBaseVertex");
 563         }
 564         else
 565         {
 566             gl_info->gl_ops.gl.p_glDrawElements(glPrimitiveType, numberOfVertices, idxtype,
 567                         (const char *)idxData + (idxSize * startIdx));
 568             checkGLcall("glDrawElements");
 569         }
 570     }
 571 }
 572
 573 static void remove_vbos(struct wined3d_context *context,
 574         const struct wined3d_state *state, struct wined3d_stream_info *s)
 575 {
 576     unsigned int i;
 577
 578     for (i = 0; i < (sizeof(s->elements) / sizeof(*s->elements)); ++i)
 579     {
 580         struct wined3d_stream_info_element *e;
 581
 582         if (!(s->use_map & (1 << i))) continue;
 583
 584         e = &s->elements[i];
 585         if (e->data.buffer_object)
 586         {
 587             struct wined3d_buffer *vb = state->streams[e->stream_idx].buffer;
 588             e->data.buffer_object = 0;
 589             e->data.addr = (BYTE *)((ULONG_PTR)e->data.addr + (ULONG_PTR)buffer_get_sysmem(vb, context));
 590         }
 591     }
 592 }
 593
 594 /* Routine common to the draw primitive and draw indexed primitive routines */
 595 void draw_primitive(struct wined3d_device *device, UINT start_idx, UINT index_count,
 596         UINT start_instance, UINT instance_count, BOOL indexed)
 597 {
 598     const struct wined3d_state *state = &device->state;
 599     const struct wined3d_stream_info *stream_info;
 600     struct wined3d_event_query *ib_query = NULL;
 601     struct wined3d_stream_info si_emulated;
 602     const struct wined3d_gl_info *gl_info;
 603     struct wined3d_context *context;
 604     BOOL emulation = FALSE;
 605     const void *idx_data = NULL;
 606     UINT idx_size = 0;
 607     unsigned int i;
 608
 609     if (!index_count) return;
 610
 611     if (state->render_states[WINED3D_RS_COLORWRITEENABLE])
 612     {
 613         /* Invalidate the back buffer memory so LockRect will read it the next time */
 614         for (i = 0; i < device->adapter->gl_info.limits.buffers; ++i)
 615         {
 616             struct wined3d_surface *target = wined3d_rendertarget_view_get_surface(device->fb.render_targets[i]);
 617             if (target)
 618             {
 619                 surface_load_location(target, target->container->resource.draw_binding);
 620                 surface_invalidate_location(target, ~target->container->resource.draw_binding);
 621             }
 622         }
 623     }
 624
 625     context = context_acquire(device, wined3d_rendertarget_view_get_surface(device->fb.render_targets[0]));
 626     if (!context->valid)
 627     {
 628         context_release(context);
 629         WARN("Invalid context, skipping draw.\n");
 630         return;
 631     }
 632     gl_info = context->gl_info;
 633
 634     if (device->fb.depth_stencil)
 635     {
 636         /* Note that this depends on the context_acquire() call above to set
 637          * context->render_offscreen properly. We don't currently take the
 638          * Z-compare function into account, but we could skip loading the
 639          * depthstencil for D3DCMP_NEVER and D3DCMP_ALWAYS as well. Also note
 640          * that we never copy the stencil data.*/
 641         DWORD location = context->render_offscreen ? device->fb.depth_stencil->resource->draw_binding
 642                 : WINED3D_LOCATION_DRAWABLE;
 643         if (state->render_states[WINED3D_RS_ZWRITEENABLE] || state->render_states[WINED3D_RS_ZENABLE])
 644         {
 645             struct wined3d_surface *ds = wined3d_rendertarget_view_get_surface(device->fb.depth_stencil);
 646             RECT current_rect, draw_rect, r;
 647
 648             if (!context->render_offscreen && ds != device->onscreen_depth_stencil)
 649                 device_switch_onscreen_ds(device, context, ds);
 650
 651             if (ds->locations & location)
 652                 SetRect(&current_rect, 0, 0, ds->ds_current_size.cx, ds->ds_current_size.cy);
 653             else
 654                 SetRectEmpty(&current_rect);
 655
 656             wined3d_get_draw_rect(state, &draw_rect);
 657
 658             IntersectRect(&r, &draw_rect, &current_rect);
 659             if (!EqualRect(&r, &draw_rect))
 660                 surface_load_ds_location(ds, context, location);
 661         }
 662     }
 663
 664     if (!context_apply_draw_state(context, device))
 665     {
 666         context_release(context);
 667         WARN("Unable to apply draw state, skipping draw.\n");
 668         return;
 669     }
 670
 671     if (device->fb.depth_stencil && state->render_states[WINED3D_RS_ZWRITEENABLE])
 672     {
 673         struct wined3d_surface *ds = wined3d_rendertarget_view_get_surface(device->fb.depth_stencil);
 674         DWORD location = context->render_offscreen ? ds->container->resource.draw_binding : WINED3D_LOCATION_DRAWABLE;
 675
 676         surface_modify_ds_location(ds, location, ds->ds_current_size.cx, ds->ds_current_size.cy);
 677     }
 678
 679     if ((!gl_info->supported[WINED3D_GL_VERSION_2_0]
 680             || !gl_info->supported[NV_POINT_SPRITE])
 681             && context->render_offscreen
 682             && state->render_states[WINED3D_RS_POINTSPRITEENABLE]
 683             && state->gl_primitive_type == GL_POINTS)
 684     {
 685         FIXME("Point sprite coordinate origin switching not supported.\n");
 686     }
 687
 688     stream_info = &context->stream_info;
 689     if (context->instance_count)
 690         instance_count = context->instance_count;
 691
 692     if (indexed)
 693     {
 694         struct wined3d_buffer *index_buffer = state->index_buffer;
 695         if (!index_buffer->buffer_object || !stream_info->all_vbo)
 696             idx_data = index_buffer->resource.heap_memory;
 697         else
 698         {
 699             ib_query = index_buffer->query;
 700             idx_data = NULL;
 701         }
 702
 703         if (state->index_format == WINED3DFMT_R16_UINT)
 704             idx_size = 2;
 705         else
 706             idx_size = 4;
 707     }
 708
 709     if (!use_vs(state))
 710     {
 711         if (!stream_info->position_transformed && context->num_untracked_materials
 712                 && state->render_states[WINED3D_RS_LIGHTING])
 713         {
 714             static BOOL warned;
 715
 716             if (!warned++)
 717                 FIXME("Using software emulation because not all material properties could be tracked.\n");
 718             else
 719                 WARN_(d3d_perf)("Using software emulation because not all material properties could be tracked.\n");
 720             emulation = TRUE;
 721         }
 722         else if (context->fog_coord && state->render_states[WINED3D_RS_FOGENABLE])
 723         {
 724             static BOOL warned;
 725
 726             /* Either write a pipeline replacement shader or convert the
 727              * specular alpha from unsigned byte to a float in the vertex
 728              * buffer. */
 729             if (!warned++)
 730                 FIXME("Using software emulation because manual fog coordinates are provided.\n");
 731             else
 732                 WARN_(d3d_perf)("Using software emulation because manual fog coordinates are provided.\n");
 733             emulation = TRUE;
 734         }
 735
 736         if (emulation)
 737         {
 738             si_emulated = context->stream_info;
 739             remove_vbos(context, state, &si_emulated);
 740             stream_info = &si_emulated;
 741         }
 742     }
 743
 744     if (context->use_immediate_mode_draw || emulation)
 745     {
 746         /* Immediate mode drawing. */
 747         if (use_vs(state))
 748         {
 749             static BOOL warned;
 750
 751             if (!warned++)
 752                 FIXME("Using immediate mode with vertex shaders for half float emulation.\n");
 753             else
 754                 WARN_(d3d_perf)("Using immediate mode with vertex shaders for half float emulation.\n");
 755
 756             drawStridedSlowVs(context, state, stream_info, index_count,
 757                     state->gl_primitive_type, idx_data, idx_size, start_idx);
 758         }
 759         else
 760         {
 761             drawStridedSlow(device, context, stream_info, index_count,
 762                     state->gl_primitive_type, idx_data, idx_size, start_idx);
 763         }
 764     }
 765     else if (!gl_info->supported[ARB_INSTANCED_ARRAYS] && instance_count)
 766     {
 767         /* Instancing emulation by mixing immediate mode and arrays. */
 768         drawStridedInstanced(context, state, stream_info, index_count, state->gl_primitive_type,
 769                 idx_data, idx_size, start_idx, state->base_vertex_index, instance_count);
 770     }
 771     else
 772     {
 773         drawStridedFast(gl_info, state->gl_primitive_type, index_count, idx_size, idx_data,
 774                 start_idx, state->base_vertex_index, start_instance, instance_count);
 775     }
 776
 777     if (ib_query)
 778         wined3d_event_query_issue(ib_query, device);
 779     for (i = 0; i < context->num_buffer_queries; ++i)
 780     {
 781         wined3d_event_query_issue(context->buffer_queries[i], device);
 782     }
 783
 784     if (wined3d_settings.strict_draw_ordering)
 785         gl_info->gl_ops.gl.p_glFlush(); /* Flush to ensure ordering across contexts. */
 786
 787     context_release(context);
 788
 789     TRACE("Done all gl drawing\n");
 790 }