intel_tex_image.c revision 89205a8760b8a4651962b1ff0206699cbcd78d75 
1
2#include <stdlib.h>
3#include <stdio.h>
4
5#include "main/glheader.h"
6#include "main/macros.h"
7#include "main/mtypes.h"
8#include "main/enums.h"
9#include "main/colortab.h"
10#include "main/convolve.h"
11#include "main/context.h"
12#include "main/simple_list.h"
13#include "main/texcompress.h"
14#include "main/texformat.h"
15#include "main/texgetimage.h"
16#include "main/texobj.h"
17#include "main/texstore.h"
18#include "main/teximage.h"
19
20#include "intel_context.h"
21#include "intel_mipmap_tree.h"
22#include "intel_buffer_objects.h"
23#include "intel_batchbuffer.h"
24#include "intel_tex.h"
25#include "intel_blit.h"
26#include "intel_fbo.h"
27
28#define FILE_DEBUG_FLAG DEBUG_TEXTURE
29
30/* Functions to store texture images.  Where possible, mipmap_tree's
31 * will be created or further instantiated with image data, otherwise
32 * images will be stored in malloc'd memory.  A validation step is
33 * required to pull those images into a mipmap tree, or otherwise
34 * decide a fallback is required.
35 */
36
37
38static int
39logbase2(int n)
40{
41   GLint i = 1;
42   GLint log2 = 0;
43
44   while (n > i) {
45      i *= 2;
46      log2++;
47   }
48
49   return log2;
50}
51
52
53/* Otherwise, store it in memory if (Border != 0) or (any dimension ==
54 * 1).
55 *
56 * Otherwise, if max_level >= level >= min_level, create tree with
57 * space for textures from min_level down to max_level.
58 *
59 * Otherwise, create tree with space for textures from (level
60 * 0)..(1x1).  Consider pruning this tree at a validation if the
61 * saving is worth it.
62 */
63static void
64guess_and_alloc_mipmap_tree(struct intel_context *intel,
65                            struct intel_texture_object *intelObj,
66                            struct intel_texture_image *intelImage,
67			    GLboolean expect_accelerated_upload)
68{
69   GLuint firstLevel;
70   GLuint lastLevel;
71   GLuint width = intelImage->base.Width;
72   GLuint height = intelImage->base.Height;
73   GLuint depth = intelImage->base.Depth;
74   GLuint l2width, l2height, l2depth;
75   GLuint i, comp_byte = 0;
76
77   DBG("%s\n", __FUNCTION__);
78
79   if (intelImage->base.Border ||
80       ((intelImage->base._BaseFormat == GL_DEPTH_COMPONENT) &&
81        ((intelObj->base.WrapS == GL_CLAMP_TO_BORDER) ||
82         (intelObj->base.WrapT == GL_CLAMP_TO_BORDER))))
83      return;
84
85   if (intelImage->level > intelObj->base.BaseLevel &&
86       (intelImage->base.Width == 1 ||
87        (intelObj->base.Target != GL_TEXTURE_1D &&
88         intelImage->base.Height == 1) ||
89        (intelObj->base.Target == GL_TEXTURE_3D &&
90         intelImage->base.Depth == 1)))
91      return;
92
93   /* If this image disrespects BaseLevel, allocate from level zero.
94    * Usually BaseLevel == 0, so it's unlikely to happen.
95    */
96   if (intelImage->level < intelObj->base.BaseLevel)
97      firstLevel = 0;
98   else
99      firstLevel = intelObj->base.BaseLevel;
100
101
102   /* Figure out image dimensions at start level.
103    */
104   for (i = intelImage->level; i > firstLevel; i--) {
105      width <<= 1;
106      if (height != 1)
107         height <<= 1;
108      if (depth != 1)
109         depth <<= 1;
110   }
111
112   /* Guess a reasonable value for lastLevel.  This is probably going
113    * to be wrong fairly often and might mean that we have to look at
114    * resizable buffers, or require that buffers implement lazy
115    * pagetable arrangements.
116    */
117   if ((intelObj->base.MinFilter == GL_NEAREST ||
118        intelObj->base.MinFilter == GL_LINEAR) &&
119       intelImage->level == firstLevel) {
120      lastLevel = firstLevel;
121   }
122   else {
123      l2width = logbase2(width);
124      l2height = logbase2(height);
125      l2depth = logbase2(depth);
126      lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth);
127   }
128
129   assert(!intelObj->mt);
130   if (intelImage->base.IsCompressed)
131      comp_byte = intel_compressed_num_bytes(intelImage->base.TexFormat->MesaFormat);
132   intelObj->mt = intel_miptree_create(intel,
133                                       intelObj->base.Target,
134                                       intelImage->base.InternalFormat,
135                                       firstLevel,
136                                       lastLevel,
137                                       width,
138                                       height,
139                                       depth,
140                                       intelImage->base.TexFormat->TexelBytes,
141                                       comp_byte,
142				       expect_accelerated_upload);
143
144   DBG("%s - success\n", __FUNCTION__);
145}
146
147
148
149
150static GLuint
151target_to_face(GLenum target)
152{
153   switch (target) {
154   case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
155   case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
156   case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
157   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
158   case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
159   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
160      return ((GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
161   default:
162      return 0;
163   }
164}
165
166/* There are actually quite a few combinations this will work for,
167 * more than what I've listed here.
168 */
169static GLboolean
170check_pbo_format(GLint internalFormat,
171                 GLenum format, GLenum type,
172                 const struct gl_texture_format *mesa_format)
173{
174   switch (internalFormat) {
175   case 4:
176   case GL_RGBA:
177      return (format == GL_BGRA &&
178              (type == GL_UNSIGNED_BYTE ||
179               type == GL_UNSIGNED_INT_8_8_8_8_REV) &&
180              mesa_format == &_mesa_texformat_argb8888);
181   case 3:
182   case GL_RGB:
183      return (format == GL_RGB &&
184              type == GL_UNSIGNED_SHORT_5_6_5 &&
185              mesa_format == &_mesa_texformat_rgb565);
186   case GL_YCBCR_MESA:
187      return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE);
188   default:
189      return GL_FALSE;
190   }
191}
192
193
194/* XXX: Do this for TexSubImage also:
195 */
196static GLboolean
197try_pbo_upload(struct intel_context *intel,
198               struct intel_texture_image *intelImage,
199               const struct gl_pixelstore_attrib *unpack,
200               GLint internalFormat,
201               GLint width, GLint height,
202               GLenum format, GLenum type, const void *pixels)
203{
204   struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
205   GLuint src_offset, src_stride;
206   GLuint dst_offset, dst_stride;
207
208   if (!pbo ||
209       intel->ctx._ImageTransferState ||
210       unpack->SkipPixels || unpack->SkipRows) {
211      DBG("%s: failure 1\n", __FUNCTION__);
212      return GL_FALSE;
213   }
214
215   /* note: potential 64-bit ptr to 32-bit int cast */
216   src_offset = (GLuint) (unsigned long) pixels;
217
218   if (unpack->RowLength > 0)
219      src_stride = unpack->RowLength;
220   else
221      src_stride = width;
222
223   dst_offset = intel_miptree_image_offset(intelImage->mt,
224                                           intelImage->face,
225                                           intelImage->level);
226
227   dst_stride = intelImage->mt->pitch;
228
229   intelFlush(&intel->ctx);
230   LOCK_HARDWARE(intel);
231   {
232      dri_bo *src_buffer = intel_bufferobj_buffer(intel, pbo, INTEL_READ);
233      dri_bo *dst_buffer = intel_region_buffer(intel,
234					       intelImage->mt->region,
235					       INTEL_WRITE_FULL);
236
237
238      intelEmitCopyBlit(intel,
239                        intelImage->mt->cpp,
240                        src_stride, src_buffer, src_offset, GL_FALSE,
241                        dst_stride, dst_buffer, dst_offset, GL_FALSE,
242                        0, 0, 0, 0, width, height,
243			GL_COPY);
244   }
245   UNLOCK_HARDWARE(intel);
246
247   return GL_TRUE;
248}
249
250
251static GLboolean
252try_pbo_zcopy(struct intel_context *intel,
253              struct intel_texture_image *intelImage,
254              const struct gl_pixelstore_attrib *unpack,
255              GLint internalFormat,
256              GLint width, GLint height,
257              GLenum format, GLenum type, const void *pixels)
258{
259   struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
260   GLuint src_offset, src_stride;
261   GLuint dst_offset, dst_stride;
262
263   if (!pbo ||
264       intel->ctx._ImageTransferState ||
265       unpack->SkipPixels || unpack->SkipRows) {
266      DBG("%s: failure 1\n", __FUNCTION__);
267      return GL_FALSE;
268   }
269
270   /* note: potential 64-bit ptr to 32-bit int cast */
271   src_offset = (GLuint) (unsigned long) pixels;
272
273   if (unpack->RowLength > 0)
274      src_stride = unpack->RowLength;
275   else
276      src_stride = width;
277
278   dst_offset = intel_miptree_image_offset(intelImage->mt,
279                                           intelImage->face,
280                                           intelImage->level);
281
282   dst_stride = intelImage->mt->pitch;
283
284   if (src_stride != dst_stride || dst_offset != 0 || src_offset != 0) {
285      DBG("%s: failure 2\n", __FUNCTION__);
286      return GL_FALSE;
287   }
288
289   intel_region_attach_pbo(intel, intelImage->mt->region, pbo);
290
291   return GL_TRUE;
292}
293
294
295static void
296intelTexImage(GLcontext * ctx,
297              GLint dims,
298              GLenum target, GLint level,
299              GLint internalFormat,
300              GLint width, GLint height, GLint depth,
301              GLint border,
302              GLenum format, GLenum type, const void *pixels,
303              const struct gl_pixelstore_attrib *unpack,
304              struct gl_texture_object *texObj,
305              struct gl_texture_image *texImage, GLsizei imageSize, int compressed)
306{
307   struct intel_context *intel = intel_context(ctx);
308   struct intel_texture_object *intelObj = intel_texture_object(texObj);
309   struct intel_texture_image *intelImage = intel_texture_image(texImage);
310   GLint postConvWidth = width;
311   GLint postConvHeight = height;
312   GLint texelBytes, sizeInBytes;
313   GLuint dstRowStride = 0, srcRowStride = texImage->RowStride;
314
315   DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__,
316       _mesa_lookup_enum_by_nr(target), level, width, height, depth, border);
317
318   intelFlush(ctx);
319
320   intelImage->face = target_to_face(target);
321   intelImage->level = level;
322
323   if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) {
324      _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth,
325                                         &postConvHeight);
326   }
327
328   /* choose the texture format */
329   texImage->TexFormat = intelChooseTextureFormat(ctx, internalFormat,
330                                                  format, type);
331
332   _mesa_set_fetch_functions(texImage, dims);
333
334   if (texImage->TexFormat->TexelBytes == 0) {
335      /* must be a compressed format */
336      texelBytes = 0;
337      texImage->IsCompressed = GL_TRUE;
338      texImage->CompressedSize =
339	 ctx->Driver.CompressedTextureSize(ctx, texImage->Width,
340					   texImage->Height, texImage->Depth,
341					   texImage->TexFormat->MesaFormat);
342   } else {
343      texelBytes = texImage->TexFormat->TexelBytes;
344
345      /* Minimum pitch of 32 bytes */
346      if (postConvWidth * texelBytes < 32) {
347	 postConvWidth = 32 / texelBytes;
348	 texImage->RowStride = postConvWidth;
349      }
350
351      if (!intelImage->mt) {
352	  assert(texImage->RowStride == postConvWidth);
353      }
354   }
355
356   /* Release the reference to a potentially orphaned buffer.
357    * Release any old malloced memory.
358    */
359   if (intelImage->mt) {
360      intel_miptree_release(intel, &intelImage->mt);
361      assert(!texImage->Data);
362   }
363   else if (texImage->Data) {
364      _mesa_free_texmemory(texImage->Data);
365      texImage->Data = NULL;
366   }
367
368   /* If this is the only texture image in the tree, could call
369    * bmBufferData with NULL data to free the old block and avoid
370    * waiting on any outstanding fences.
371    */
372   if (intelObj->mt &&
373       intelObj->mt->first_level == level &&
374       intelObj->mt->last_level == level &&
375       intelObj->mt->target != GL_TEXTURE_CUBE_MAP_ARB &&
376       !intel_miptree_match_image(intelObj->mt, &intelImage->base,
377                                  intelImage->face, intelImage->level)) {
378
379      DBG("release it\n");
380      intel_miptree_release(intel, &intelObj->mt);
381      assert(!intelObj->mt);
382   }
383
384   if (!intelObj->mt) {
385      guess_and_alloc_mipmap_tree(intel, intelObj, intelImage, pixels == NULL);
386      if (!intelObj->mt) {
387	 DBG("guess_and_alloc_mipmap_tree: failed\n");
388      }
389   }
390
391   assert(!intelImage->mt);
392
393   if (intelObj->mt &&
394       intel_miptree_match_image(intelObj->mt, &intelImage->base,
395                                 intelImage->face, intelImage->level)) {
396
397      intel_miptree_reference(&intelImage->mt, intelObj->mt);
398      assert(intelImage->mt);
399   } else if (intelImage->base.Border == 0) {
400      int comp_byte = 0;
401
402      if (intelImage->base.IsCompressed) {
403	 comp_byte =
404	    intel_compressed_num_bytes(intelImage->base.TexFormat->MesaFormat);
405      }
406
407      /* Didn't fit in the object miptree, but it's suitable for inclusion in
408       * a miptree, so create one just for our level and store it in the image.
409       * It'll get moved into the object miptree at validate time.
410       */
411      intelImage->mt = intel_miptree_create(intel, target, internalFormat,
412					    level, level,
413					    width, height, depth,
414					    intelImage->base.TexFormat->TexelBytes,
415					    comp_byte, pixels == NULL);
416
417   }
418
419   /* PBO fastpaths:
420    */
421   if (dims <= 2 &&
422       intelImage->mt &&
423       intel_buffer_object(unpack->BufferObj) &&
424       check_pbo_format(internalFormat, format,
425                        type, intelImage->base.TexFormat)) {
426
427      DBG("trying pbo upload\n");
428
429      /* Attempt to texture directly from PBO data (zero copy upload).
430       *
431       * Currently disable as it can lead to worse as well as better
432       * performance (in particular when intel_region_cow() is
433       * required).
434       */
435      if (intelObj->mt == intelImage->mt &&
436          intelObj->mt->first_level == level &&
437          intelObj->mt->last_level == level) {
438
439         if (try_pbo_zcopy(intel, intelImage, unpack,
440                           internalFormat,
441                           width, height, format, type, pixels)) {
442
443            DBG("pbo zcopy upload succeeded\n");
444            return;
445         }
446      }
447
448
449      /* Otherwise, attempt to use the blitter for PBO image uploads.
450       */
451      if (try_pbo_upload(intel, intelImage, unpack,
452                         internalFormat,
453                         width, height, format, type, pixels)) {
454         DBG("pbo upload succeeded\n");
455         return;
456      }
457
458      DBG("pbo upload failed\n");
459   }
460
461   /* intelCopyTexImage calls this function with pixels == NULL, with
462    * the expectation that the mipmap tree will be set up but nothing
463    * more will be done.  This is where those calls return:
464    */
465   if (compressed) {
466      pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
467						      unpack,
468						      "glCompressedTexImage");
469   } else {
470      pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
471					   format, type,
472					   pixels, unpack, "glTexImage");
473   }
474
475   LOCK_HARDWARE(intel);
476
477   if (intelImage->mt) {
478      if (pixels != NULL)
479         texImage->Data = intel_miptree_image_map(intel,
480                                                  intelImage->mt,
481                                                  intelImage->face,
482                                                  intelImage->level,
483                                                  &dstRowStride,
484                                                  intelImage->base.ImageOffsets);
485      texImage->RowStride = dstRowStride / intelImage->mt->cpp;
486   }
487   else {
488      /* Allocate regular memory and store the image there temporarily.   */
489      if (texImage->IsCompressed) {
490         sizeInBytes = texImage->CompressedSize;
491         dstRowStride =
492            _mesa_compressed_row_stride(texImage->TexFormat->MesaFormat, width);
493         assert(dims != 3);
494      }
495      else {
496         dstRowStride = postConvWidth * texelBytes;
497         sizeInBytes = depth * dstRowStride * postConvHeight;
498      }
499
500      texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
501   }
502
503   DBG("Upload image %dx%dx%d row_len %d "
504       "pitch %d pixels %d compressed %d\n",
505       width, height, depth, width * texelBytes, dstRowStride,
506       pixels ? 1 : 0, compressed);
507
508   /* Copy data.  Would like to know when it's ok for us to eg. use
509    * the blitter to copy.  Or, use the hardware to do the format
510    * conversion and copy:
511    */
512   if (pixels) {
513       if (compressed) {
514	   if (intelImage->mt) {
515	       struct intel_region *dst = intelImage->mt->region;
516	       _mesa_copy_rect(texImage->Data, dst->cpp, dst->pitch,
517			       0, 0,
518			       intelImage->mt->level[level].width,
519			       (intelImage->mt->level[level].height+3)/4,
520			       pixels,
521			       srcRowStride,
522			       0, 0);
523	   } else
524	       memcpy(texImage->Data, pixels, imageSize);
525       } else if (!texImage->TexFormat->StoreImage(ctx, dims,
526						   texImage->_BaseFormat,
527						   texImage->TexFormat,
528						   texImage->Data, 0, 0, 0, /* dstX/Y/Zoffset */
529						   dstRowStride,
530						   texImage->ImageOffsets,
531						   width, height, depth,
532						   format, type, pixels, unpack)) {
533	   _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
534       }
535   }
536
537   _mesa_unmap_teximage_pbo(ctx, unpack);
538
539   if (intelImage->mt) {
540      if (pixels != NULL)
541         intel_miptree_image_unmap(intel, intelImage->mt);
542      texImage->Data = NULL;
543   }
544
545   UNLOCK_HARDWARE(intel);
546
547   /* GL_SGIS_generate_mipmap */
548   if (level == texObj->BaseLevel && texObj->GenerateMipmap) {
549      intel_generate_mipmap(ctx, target, texObj);
550   }
551}
552
553
554static void
555intelTexImage3D(GLcontext * ctx,
556                GLenum target, GLint level,
557                GLint internalFormat,
558                GLint width, GLint height, GLint depth,
559                GLint border,
560                GLenum format, GLenum type, const void *pixels,
561                const struct gl_pixelstore_attrib *unpack,
562                struct gl_texture_object *texObj,
563                struct gl_texture_image *texImage)
564{
565   intelTexImage(ctx, 3, target, level,
566                 internalFormat, width, height, depth, border,
567                 format, type, pixels, unpack, texObj, texImage, 0, 0);
568}
569
570
571static void
572intelTexImage2D(GLcontext * ctx,
573                GLenum target, GLint level,
574                GLint internalFormat,
575                GLint width, GLint height, GLint border,
576                GLenum format, GLenum type, const void *pixels,
577                const struct gl_pixelstore_attrib *unpack,
578                struct gl_texture_object *texObj,
579                struct gl_texture_image *texImage)
580{
581   intelTexImage(ctx, 2, target, level,
582                 internalFormat, width, height, 1, border,
583                 format, type, pixels, unpack, texObj, texImage, 0, 0);
584}
585
586
587static void
588intelTexImage1D(GLcontext * ctx,
589                GLenum target, GLint level,
590                GLint internalFormat,
591                GLint width, GLint border,
592                GLenum format, GLenum type, const void *pixels,
593                const struct gl_pixelstore_attrib *unpack,
594                struct gl_texture_object *texObj,
595                struct gl_texture_image *texImage)
596{
597   intelTexImage(ctx, 1, target, level,
598                 internalFormat, width, 1, 1, border,
599                 format, type, pixels, unpack, texObj, texImage, 0, 0);
600}
601
602
603static void
604intelCompressedTexImage2D( GLcontext *ctx, GLenum target, GLint level,
605                           GLint internalFormat,
606                           GLint width, GLint height, GLint border,
607                           GLsizei imageSize, const GLvoid *data,
608                           struct gl_texture_object *texObj,
609                           struct gl_texture_image *texImage )
610{
611   intelTexImage(ctx, 2, target, level,
612		 internalFormat, width, height, 1, border,
613		 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, 1);
614}
615
616
617/**
618 * Need to map texture image into memory before copying image data,
619 * then unmap it.
620 */
621static void
622intel_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
623		    GLenum format, GLenum type, GLvoid * pixels,
624		    struct gl_texture_object *texObj,
625		    struct gl_texture_image *texImage, int compressed)
626{
627   struct intel_context *intel = intel_context(ctx);
628   struct intel_texture_image *intelImage = intel_texture_image(texImage);
629
630   /* Map */
631   if (intelImage->mt) {
632      /* Image is stored in hardware format in a buffer managed by the
633       * kernel.  Need to explicitly map and unmap it.
634       */
635      intelImage->base.Data =
636         intel_miptree_image_map(intel,
637                                 intelImage->mt,
638                                 intelImage->face,
639                                 intelImage->level,
640                                 &intelImage->base.RowStride,
641                                 intelImage->base.ImageOffsets);
642      intelImage->base.RowStride /= intelImage->mt->cpp;
643   }
644   else {
645      /* Otherwise, the image should actually be stored in
646       * intelImage->base.Data.  This is pretty confusing for
647       * everybody, I'd much prefer to separate the two functions of
648       * texImage->Data - storage for texture images in main memory
649       * and access (ie mappings) of images.  In other words, we'd
650       * create a new texImage->Map field and leave Data simply for
651       * storage.
652       */
653      assert(intelImage->base.Data);
654   }
655
656
657   if (compressed) {
658      _mesa_get_compressed_teximage(ctx, target, level, pixels,
659				    texObj, texImage);
660   } else {
661      _mesa_get_teximage(ctx, target, level, format, type, pixels,
662			 texObj, texImage);
663   }
664
665
666   /* Unmap */
667   if (intelImage->mt) {
668      intel_miptree_image_unmap(intel, intelImage->mt);
669      intelImage->base.Data = NULL;
670   }
671}
672
673
674static void
675intelGetTexImage(GLcontext * ctx, GLenum target, GLint level,
676                 GLenum format, GLenum type, GLvoid * pixels,
677                 struct gl_texture_object *texObj,
678                 struct gl_texture_image *texImage)
679{
680   intel_get_tex_image(ctx, target, level, format, type, pixels,
681		       texObj, texImage, 0);
682}
683
684
685static void
686intelGetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level,
687			   GLvoid *pixels,
688			   struct gl_texture_object *texObj,
689			   struct gl_texture_image *texImage)
690{
691   intel_get_tex_image(ctx, target, level, 0, 0, pixels,
692		       texObj, texImage, 1);
693}
694
695
696void
697intelSetTexOffset(__DRIcontext *pDRICtx, GLint texname,
698		  unsigned long long offset, GLint depth, GLuint pitch)
699{
700   struct intel_context *intel = pDRICtx->driverPrivate;
701   struct gl_texture_object *tObj = _mesa_lookup_texture(&intel->ctx, texname);
702   struct intel_texture_object *intelObj = intel_texture_object(tObj);
703
704   if (!intelObj)
705      return;
706
707   if (intelObj->mt)
708      intel_miptree_release(intel, &intelObj->mt);
709
710   intelObj->imageOverride = GL_TRUE;
711   intelObj->depthOverride = depth;
712   intelObj->pitchOverride = pitch;
713
714   if (offset)
715      intelObj->textureOffset = offset;
716}
717
718void
719intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
720		   GLint glx_texture_format,
721		   __DRIdrawable *dPriv)
722{
723   struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
724   struct intel_context *intel = pDRICtx->driverPrivate;
725   struct intel_texture_object *intelObj;
726   struct intel_texture_image *intelImage;
727   struct intel_mipmap_tree *mt;
728   struct intel_renderbuffer *rb;
729   struct gl_texture_unit *texUnit;
730   struct gl_texture_object *texObj;
731   struct gl_texture_image *texImage;
732   int level = 0, type, format, internalFormat;
733
734   texUnit = &intel->ctx.Texture.Unit[intel->ctx.Texture.CurrentUnit];
735   texObj = _mesa_select_tex_object(&intel->ctx, texUnit, target);
736   intelObj = intel_texture_object(texObj);
737
738   if (!intelObj)
739      return;
740
741   intel_update_renderbuffers(pDRICtx, dPriv);
742
743   rb = intel_fb->color_rb[0];
744   /* If the region isn't set, then intel_update_renderbuffers was unable
745    * to get the buffers for the drawable.
746    */
747   if (rb->region == NULL)
748      return;
749
750   type = GL_BGRA;
751   format = GL_UNSIGNED_BYTE;
752   if (glx_texture_format == GLX_TEXTURE_FORMAT_RGB_EXT)
753      internalFormat = GL_RGB;
754   else
755      internalFormat = GL_RGBA;
756
757   mt = intel_miptree_create_for_region(intel, target,
758					internalFormat,
759					0, 0, rb->region, 1, 0);
760   if (mt == NULL)
761       return;
762
763   _mesa_lock_texture(&intel->ctx, texObj);
764
765   texImage = _mesa_get_tex_image(&intel->ctx, texObj, target, level);
766   intelImage = intel_texture_image(texImage);
767
768   if (intelImage->mt) {
769      intel_miptree_release(intel, &intelImage->mt);
770      assert(!texImage->Data);
771   }
772   if (intelObj->mt)
773      intel_miptree_release(intel, &intelObj->mt);
774
775   intelObj->mt = mt;
776   _mesa_init_teximage_fields(&intel->ctx, target, texImage,
777			      rb->region->width, rb->region->height, 1,
778			      0, internalFormat);
779
780   intelImage->face = target_to_face(target);
781   intelImage->level = level;
782   texImage->TexFormat = intelChooseTextureFormat(&intel->ctx, internalFormat,
783                                                  type, format);
784   _mesa_set_fetch_functions(texImage, 2);
785   texImage->RowStride = rb->region->pitch;
786   intel_miptree_reference(&intelImage->mt, intelObj->mt);
787
788   if (!intel_miptree_match_image(intelObj->mt, &intelImage->base,
789				  intelImage->face, intelImage->level)) {
790	   fprintf(stderr, "miptree doesn't match image\n");
791   }
792
793   _mesa_unlock_texture(&intel->ctx, texObj);
794}
795
796void
797intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
798{
799   /* The old interface didn't have the format argument, so copy our
800    * implementation's behavior at the time.
801    */
802   intelSetTexBuffer2(pDRICtx, target, GLX_TEXTURE_FORMAT_RGBA_EXT, dPriv);
803}
804
805
806void
807intelInitTextureImageFuncs(struct dd_function_table *functions)
808{
809   functions->TexImage1D = intelTexImage1D;
810   functions->TexImage2D = intelTexImage2D;
811   functions->TexImage3D = intelTexImage3D;
812   functions->GetTexImage = intelGetTexImage;
813
814   functions->CompressedTexImage2D = intelCompressedTexImage2D;
815   functions->GetCompressedTexImage = intelGetCompressedTexImage;
816}
817