intel_tex_image.c revision 1f196b786d6bd0c6a5dbdc638574ff716cc3d4de 
1
2#include "main/glheader.h"
3#include "main/macros.h"
4#include "main/mtypes.h"
5#include "main/enums.h"
6#include "main/bufferobj.h"
7#include "main/convolve.h"
8#include "main/context.h"
9#include "main/texcompress.h"
10#include "main/texstore.h"
11#include "main/texgetimage.h"
12#include "main/texobj.h"
13#include "main/texstore.h"
14#include "main/teximage.h"
15
16#include "intel_context.h"
17#include "intel_mipmap_tree.h"
18#include "intel_buffer_objects.h"
19#include "intel_batchbuffer.h"
20#include "intel_tex.h"
21#include "intel_blit.h"
22#include "intel_fbo.h"
23
24#define FILE_DEBUG_FLAG DEBUG_TEXTURE
25
26/* Functions to store texture images.  Where possible, mipmap_tree's
27 * will be created or further instantiated with image data, otherwise
28 * images will be stored in malloc'd memory.  A validation step is
29 * required to pull those images into a mipmap tree, or otherwise
30 * decide a fallback is required.
31 */
32
33
34static int
35logbase2(int n)
36{
37   GLint i = 1;
38   GLint log2 = 0;
39
40   while (n > i) {
41      i *= 2;
42      log2++;
43   }
44
45   return log2;
46}
47
48
49/* Otherwise, store it in memory if (Border != 0) or (any dimension ==
50 * 1).
51 *
52 * Otherwise, if max_level >= level >= min_level, create tree with
53 * space for textures from min_level down to max_level.
54 *
55 * Otherwise, create tree with space for textures from (level
56 * 0)..(1x1).  Consider pruning this tree at a validation if the
57 * saving is worth it.
58 */
59static void
60guess_and_alloc_mipmap_tree(struct intel_context *intel,
61                            struct intel_texture_object *intelObj,
62                            struct intel_texture_image *intelImage,
63			    GLboolean expect_accelerated_upload)
64{
65   GLuint firstLevel;
66   GLuint lastLevel;
67   GLuint width = intelImage->base.Width;
68   GLuint height = intelImage->base.Height;
69   GLuint depth = intelImage->base.Depth;
70   GLuint l2width, l2height, l2depth;
71   GLuint i, comp_byte = 0;
72   GLuint texelBytes;
73
74   DBG("%s\n", __FUNCTION__);
75
76   if (intelImage->base.Border ||
77       ((intelImage->base._BaseFormat == GL_DEPTH_COMPONENT) &&
78        ((intelObj->base.WrapS == GL_CLAMP_TO_BORDER) ||
79         (intelObj->base.WrapT == GL_CLAMP_TO_BORDER))))
80      return;
81
82   if (intelImage->level > intelObj->base.BaseLevel &&
83       (intelImage->base.Width == 1 ||
84        (intelObj->base.Target != GL_TEXTURE_1D &&
85         intelImage->base.Height == 1) ||
86        (intelObj->base.Target == GL_TEXTURE_3D &&
87         intelImage->base.Depth == 1)))
88      return;
89
90   /* If this image disrespects BaseLevel, allocate from level zero.
91    * Usually BaseLevel == 0, so it's unlikely to happen.
92    */
93   if (intelImage->level < intelObj->base.BaseLevel)
94      firstLevel = 0;
95   else
96      firstLevel = intelObj->base.BaseLevel;
97
98
99   /* Figure out image dimensions at start level.
100    */
101   for (i = intelImage->level; i > firstLevel; i--) {
102      width <<= 1;
103      if (height != 1)
104         height <<= 1;
105      if (depth != 1)
106         depth <<= 1;
107   }
108
109   /* Guess a reasonable value for lastLevel.  This is probably going
110    * to be wrong fairly often and might mean that we have to look at
111    * resizable buffers, or require that buffers implement lazy
112    * pagetable arrangements.
113    */
114   if ((intelObj->base.MinFilter == GL_NEAREST ||
115        intelObj->base.MinFilter == GL_LINEAR) &&
116       intelImage->level == firstLevel) {
117      lastLevel = firstLevel;
118   }
119   else {
120      l2width = logbase2(width);
121      l2height = logbase2(height);
122      l2depth = logbase2(depth);
123      lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth);
124   }
125
126   assert(!intelObj->mt);
127   if (_mesa_is_format_compressed(intelImage->base.TexFormat))
128      comp_byte = intel_compressed_num_bytes(intelImage->base.TexFormat);
129
130   texelBytes = _mesa_get_format_bytes(intelImage->base.TexFormat);
131
132   intelObj->mt = intel_miptree_create(intel,
133                                       intelObj->base.Target,
134                                       intelImage->base._BaseFormat,
135                                       intelImage->base.InternalFormat,
136                                       firstLevel,
137                                       lastLevel,
138                                       width,
139                                       height,
140                                       depth,
141                                       texelBytes,
142                                       comp_byte,
143				       expect_accelerated_upload);
144
145   DBG("%s - success\n", __FUNCTION__);
146}
147
148
149
150
151static GLuint
152target_to_face(GLenum target)
153{
154   switch (target) {
155   case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
156   case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
157   case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
158   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
159   case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
160   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
161      return ((GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
162   default:
163      return 0;
164   }
165}
166
167/* There are actually quite a few combinations this will work for,
168 * more than what I've listed here.
169 */
170static GLboolean
171check_pbo_format(GLint internalFormat,
172                 GLenum format, GLenum type,
173                 gl_format mesa_format)
174{
175   switch (internalFormat) {
176   case 4:
177   case GL_RGBA:
178      return (format == GL_BGRA &&
179              (type == GL_UNSIGNED_BYTE ||
180               type == GL_UNSIGNED_INT_8_8_8_8_REV) &&
181              mesa_format == MESA_FORMAT_ARGB8888);
182   case 3:
183   case GL_RGB:
184      return (format == GL_RGB &&
185              type == GL_UNSIGNED_SHORT_5_6_5 &&
186              mesa_format == MESA_FORMAT_RGB565);
187   case GL_YCBCR_MESA:
188      return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE);
189   default:
190      return GL_FALSE;
191   }
192}
193
194
195/* XXX: Do this for TexSubImage also:
196 */
197static GLboolean
198try_pbo_upload(struct intel_context *intel,
199               struct intel_texture_image *intelImage,
200               const struct gl_pixelstore_attrib *unpack,
201               GLint internalFormat,
202               GLint width, GLint height,
203               GLenum format, GLenum type, const void *pixels)
204{
205   struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
206   GLuint src_offset, src_stride;
207   GLuint dst_x, dst_y, dst_stride;
208   dri_bo *dst_buffer = intel_region_buffer(intel,
209					    intelImage->mt->region,
210					    INTEL_WRITE_FULL);
211
212   if (!_mesa_is_bufferobj(unpack->BufferObj) ||
213       intel->ctx._ImageTransferState ||
214       unpack->SkipPixels || unpack->SkipRows) {
215      DBG("%s: failure 1\n", __FUNCTION__);
216      return GL_FALSE;
217   }
218
219   /* note: potential 64-bit ptr to 32-bit int cast */
220   src_offset = (GLuint) (unsigned long) pixels;
221
222   if (unpack->RowLength > 0)
223      src_stride = unpack->RowLength;
224   else
225      src_stride = width;
226
227   intel_miptree_get_image_offset(intelImage->mt, intelImage->level,
228				  intelImage->face, 0,
229				  &dst_x, &dst_y);
230
231   dst_stride = intelImage->mt->pitch;
232
233   if (drm_intel_bo_references(intel->batch->buf, dst_buffer))
234      intelFlush(&intel->ctx);
235   LOCK_HARDWARE(intel);
236   {
237      dri_bo *src_buffer = intel_bufferobj_buffer(intel, pbo, INTEL_READ);
238
239      if (!intelEmitCopyBlit(intel,
240			     intelImage->mt->cpp,
241			     src_stride, src_buffer, src_offset, GL_FALSE,
242			     dst_stride, dst_buffer, 0, GL_FALSE,
243			     0, 0, dst_x, dst_y, width, height,
244			     GL_COPY)) {
245	 UNLOCK_HARDWARE(intel);
246	 return GL_FALSE;
247      }
248   }
249   UNLOCK_HARDWARE(intel);
250
251   return GL_TRUE;
252}
253
254
255static GLboolean
256try_pbo_zcopy(struct intel_context *intel,
257              struct intel_texture_image *intelImage,
258              const struct gl_pixelstore_attrib *unpack,
259              GLint internalFormat,
260              GLint width, GLint height,
261              GLenum format, GLenum type, const void *pixels)
262{
263   struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
264   GLuint src_offset, src_stride;
265   GLuint dst_x, dst_y, dst_stride;
266
267   if (!_mesa_is_bufferobj(unpack->BufferObj) ||
268       intel->ctx._ImageTransferState ||
269       unpack->SkipPixels || unpack->SkipRows) {
270      DBG("%s: failure 1\n", __FUNCTION__);
271      return GL_FALSE;
272   }
273
274   /* note: potential 64-bit ptr to 32-bit int cast */
275   src_offset = (GLuint) (unsigned long) pixels;
276
277   if (unpack->RowLength > 0)
278      src_stride = unpack->RowLength;
279   else
280      src_stride = width;
281
282   intel_miptree_get_image_offset(intelImage->mt, intelImage->level,
283				  intelImage->face, 0,
284				  &dst_x, &dst_y);
285
286   dst_stride = intelImage->mt->pitch;
287
288   if (src_stride != dst_stride || dst_x != 0 || dst_y != 0 ||
289       src_offset != 0) {
290      DBG("%s: failure 2\n", __FUNCTION__);
291      return GL_FALSE;
292   }
293
294   intel_region_attach_pbo(intel, intelImage->mt->region, pbo);
295
296   return GL_TRUE;
297}
298
299
300static void
301intelTexImage(GLcontext * ctx,
302              GLint dims,
303              GLenum target, GLint level,
304              GLint internalFormat,
305              GLint width, GLint height, GLint depth,
306              GLint border,
307              GLenum format, GLenum type, const void *pixels,
308              const struct gl_pixelstore_attrib *unpack,
309              struct gl_texture_object *texObj,
310              struct gl_texture_image *texImage, GLsizei imageSize,
311              GLboolean compressed)
312{
313   struct intel_context *intel = intel_context(ctx);
314   struct intel_texture_object *intelObj = intel_texture_object(texObj);
315   struct intel_texture_image *intelImage = intel_texture_image(texImage);
316   GLint postConvWidth = width;
317   GLint postConvHeight = height;
318   GLint texelBytes, sizeInBytes;
319   GLuint dstRowStride = 0, srcRowStride = texImage->RowStride;
320
321   DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__,
322       _mesa_lookup_enum_by_nr(target), level, width, height, depth, border);
323
324   intelImage->face = target_to_face(target);
325   intelImage->level = level;
326
327   if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) {
328      _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth,
329                                         &postConvHeight);
330   }
331
332   if (_mesa_is_format_compressed(texImage->TexFormat)) {
333      texelBytes = 0;
334   }
335   else {
336      texelBytes = _mesa_get_format_bytes(texImage->TexFormat);
337
338      /* Minimum pitch of 32 bytes */
339      if (postConvWidth * texelBytes < 32) {
340	 postConvWidth = 32 / texelBytes;
341	 texImage->RowStride = postConvWidth;
342      }
343
344      if (!intelImage->mt) {
345	  assert(texImage->RowStride == postConvWidth);
346      }
347   }
348
349   /* Release the reference to a potentially orphaned buffer.
350    * Release any old malloced memory.
351    */
352   if (intelImage->mt) {
353      intel_miptree_release(intel, &intelImage->mt);
354      assert(!texImage->Data);
355   }
356   else if (texImage->Data) {
357      _mesa_free_texmemory(texImage->Data);
358      texImage->Data = NULL;
359   }
360
361   /* If this is the only texture image in the tree, could call
362    * bmBufferData with NULL data to free the old block and avoid
363    * waiting on any outstanding fences.
364    */
365   if (intelObj->mt &&
366       intelObj->mt->first_level == level &&
367       intelObj->mt->last_level == level &&
368       intelObj->mt->target != GL_TEXTURE_CUBE_MAP_ARB &&
369       !intel_miptree_match_image(intelObj->mt, &intelImage->base,
370                                  intelImage->face, intelImage->level)) {
371
372      DBG("release it\n");
373      intel_miptree_release(intel, &intelObj->mt);
374      assert(!intelObj->mt);
375   }
376
377   if (!intelObj->mt) {
378      guess_and_alloc_mipmap_tree(intel, intelObj, intelImage, pixels == NULL);
379      if (!intelObj->mt) {
380	 DBG("guess_and_alloc_mipmap_tree: failed\n");
381      }
382   }
383
384   assert(!intelImage->mt);
385
386   if (intelObj->mt &&
387       intel_miptree_match_image(intelObj->mt, &intelImage->base,
388                                 intelImage->face, intelImage->level)) {
389
390      intel_miptree_reference(&intelImage->mt, intelObj->mt);
391      assert(intelImage->mt);
392   } else if (intelImage->base.Border == 0) {
393      int comp_byte = 0;
394      GLuint texelBytes = _mesa_get_format_bytes(intelImage->base.TexFormat);
395      GLenum baseFormat = _mesa_get_format_base_format(intelImage->base.TexFormat);
396      if (_mesa_is_format_compressed(intelImage->base.TexFormat)) {
397	 comp_byte =
398	    intel_compressed_num_bytes(intelImage->base.TexFormat);
399      }
400
401      /* Didn't fit in the object miptree, but it's suitable for inclusion in
402       * a miptree, so create one just for our level and store it in the image.
403       * It'll get moved into the object miptree at validate time.
404       */
405      intelImage->mt = intel_miptree_create(intel, target,
406					    baseFormat,
407					    internalFormat,
408					    level, level,
409					    width, height, depth,
410					    texelBytes,
411					    comp_byte, pixels == NULL);
412
413   }
414
415   /* PBO fastpaths:
416    */
417   if (dims <= 2 &&
418       intelImage->mt &&
419       _mesa_is_bufferobj(unpack->BufferObj) &&
420       check_pbo_format(internalFormat, format,
421                        type, intelImage->base.TexFormat)) {
422
423      DBG("trying pbo upload\n");
424
425      /* Attempt to texture directly from PBO data (zero copy upload).
426       *
427       * Currently disable as it can lead to worse as well as better
428       * performance (in particular when intel_region_cow() is
429       * required).
430       */
431      if (intelObj->mt == intelImage->mt &&
432          intelObj->mt->first_level == level &&
433          intelObj->mt->last_level == level) {
434
435         if (try_pbo_zcopy(intel, intelImage, unpack,
436                           internalFormat,
437                           width, height, format, type, pixels)) {
438
439            DBG("pbo zcopy upload succeeded\n");
440            return;
441         }
442      }
443
444
445      /* Otherwise, attempt to use the blitter for PBO image uploads.
446       */
447      if (try_pbo_upload(intel, intelImage, unpack,
448                         internalFormat,
449                         width, height, format, type, pixels)) {
450         DBG("pbo upload succeeded\n");
451         return;
452      }
453
454      DBG("pbo upload failed\n");
455   }
456
457   /* intelCopyTexImage calls this function with pixels == NULL, with
458    * the expectation that the mipmap tree will be set up but nothing
459    * more will be done.  This is where those calls return:
460    */
461   if (compressed) {
462      pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
463						      unpack,
464						      "glCompressedTexImage");
465   } else {
466      pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
467					   format, type,
468					   pixels, unpack, "glTexImage");
469   }
470
471   LOCK_HARDWARE(intel);
472
473   if (intelImage->mt) {
474      if (pixels != NULL) {
475	 /* Flush any queued rendering with the texture before mapping. */
476	 if (drm_intel_bo_references(intel->batch->buf,
477				     intelImage->mt->region->buffer)) {
478	    intelFlush(ctx);
479	 }
480         texImage->Data = intel_miptree_image_map(intel,
481                                                  intelImage->mt,
482                                                  intelImage->face,
483                                                  intelImage->level,
484                                                  &dstRowStride,
485                                                  intelImage->base.ImageOffsets);
486      }
487
488      texImage->RowStride = dstRowStride / intelImage->mt->cpp;
489   }
490   else {
491      /* Allocate regular memory and store the image there temporarily.   */
492      if (_mesa_is_format_compressed(texImage->TexFormat)) {
493         sizeInBytes = _mesa_format_image_size(texImage->TexFormat,
494                                               texImage->Width,
495                                               texImage->Height,
496                                               texImage->Depth);
497         dstRowStride =
498            _mesa_format_row_stride(texImage->TexFormat, width);
499         assert(dims != 3);
500      }
501      else {
502         dstRowStride = postConvWidth * texelBytes;
503         sizeInBytes = depth * dstRowStride * postConvHeight;
504      }
505
506      texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
507   }
508
509   DBG("Upload image %dx%dx%d row_len %d "
510       "pitch %d pixels %d compressed %d\n",
511       width, height, depth, width * texelBytes, dstRowStride,
512       pixels ? 1 : 0, compressed);
513
514   /* Copy data.  Would like to know when it's ok for us to eg. use
515    * the blitter to copy.  Or, use the hardware to do the format
516    * conversion and copy:
517    */
518   if (pixels) {
519       if (compressed) {
520	   if (intelImage->mt) {
521	       struct intel_region *dst = intelImage->mt->region;
522	       _mesa_copy_rect(texImage->Data, dst->cpp, dst->pitch,
523			       0, 0,
524			       intelImage->mt->level[level].width,
525			       (intelImage->mt->level[level].height+3)/4,
526			       pixels,
527			       srcRowStride,
528			       0, 0);
529	   }
530           else {
531	       memcpy(texImage->Data, pixels, imageSize);
532           }
533       }
534       else if (!_mesa_texstore(ctx, dims,
535                                texImage->_BaseFormat,
536                                texImage->TexFormat,
537                                texImage->Data, 0, 0, 0, /* dstX/Y/Zoffset */
538                                dstRowStride,
539                                texImage->ImageOffsets,
540                                width, height, depth,
541                                format, type, pixels, unpack)) {
542          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
543       }
544   }
545
546   _mesa_unmap_teximage_pbo(ctx, unpack);
547
548   if (intelImage->mt) {
549      if (pixels != NULL)
550         intel_miptree_image_unmap(intel, intelImage->mt);
551      texImage->Data = NULL;
552   }
553
554   UNLOCK_HARDWARE(intel);
555}
556
557
558static void
559intelTexImage3D(GLcontext * ctx,
560                GLenum target, GLint level,
561                GLint internalFormat,
562                GLint width, GLint height, GLint depth,
563                GLint border,
564                GLenum format, GLenum type, const void *pixels,
565                const struct gl_pixelstore_attrib *unpack,
566                struct gl_texture_object *texObj,
567                struct gl_texture_image *texImage)
568{
569   intelTexImage(ctx, 3, target, level,
570                 internalFormat, width, height, depth, border,
571                 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
572}
573
574
575static void
576intelTexImage2D(GLcontext * ctx,
577                GLenum target, GLint level,
578                GLint internalFormat,
579                GLint width, GLint height, GLint border,
580                GLenum format, GLenum type, const void *pixels,
581                const struct gl_pixelstore_attrib *unpack,
582                struct gl_texture_object *texObj,
583                struct gl_texture_image *texImage)
584{
585   intelTexImage(ctx, 2, target, level,
586                 internalFormat, width, height, 1, border,
587                 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
588}
589
590
591static void
592intelTexImage1D(GLcontext * ctx,
593                GLenum target, GLint level,
594                GLint internalFormat,
595                GLint width, GLint border,
596                GLenum format, GLenum type, const void *pixels,
597                const struct gl_pixelstore_attrib *unpack,
598                struct gl_texture_object *texObj,
599                struct gl_texture_image *texImage)
600{
601   intelTexImage(ctx, 1, target, level,
602                 internalFormat, width, 1, 1, border,
603                 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
604}
605
606
607static void
608intelCompressedTexImage2D( GLcontext *ctx, GLenum target, GLint level,
609                           GLint internalFormat,
610                           GLint width, GLint height, GLint border,
611                           GLsizei imageSize, const GLvoid *data,
612                           struct gl_texture_object *texObj,
613                           struct gl_texture_image *texImage )
614{
615   intelTexImage(ctx, 2, target, level,
616		 internalFormat, width, height, 1, border,
617		 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE);
618}
619
620
621/**
622 * Need to map texture image into memory before copying image data,
623 * then unmap it.
624 */
625static void
626intel_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
627		    GLenum format, GLenum type, GLvoid * pixels,
628		    struct gl_texture_object *texObj,
629		    struct gl_texture_image *texImage, GLboolean compressed)
630{
631   struct intel_context *intel = intel_context(ctx);
632   struct intel_texture_image *intelImage = intel_texture_image(texImage);
633
634   /* If we're reading from a texture that has been rendered to, need to
635    * make sure rendering is complete.
636    * We could probably predicate this on texObj->_RenderToTexture
637    */
638   intelFlush(ctx);
639
640   /* Map */
641   if (intelImage->mt) {
642      /* Image is stored in hardware format in a buffer managed by the
643       * kernel.  Need to explicitly map and unmap it.
644       */
645      intelImage->base.Data =
646         intel_miptree_image_map(intel,
647                                 intelImage->mt,
648                                 intelImage->face,
649                                 intelImage->level,
650                                 &intelImage->base.RowStride,
651                                 intelImage->base.ImageOffsets);
652      intelImage->base.RowStride /= intelImage->mt->cpp;
653   }
654   else {
655      /* Otherwise, the image should actually be stored in
656       * intelImage->base.Data.  This is pretty confusing for
657       * everybody, I'd much prefer to separate the two functions of
658       * texImage->Data - storage for texture images in main memory
659       * and access (ie mappings) of images.  In other words, we'd
660       * create a new texImage->Map field and leave Data simply for
661       * storage.
662       */
663      assert(intelImage->base.Data);
664   }
665
666
667   if (compressed) {
668      _mesa_get_compressed_teximage(ctx, target, level, pixels,
669				    texObj, texImage);
670   } else {
671      _mesa_get_teximage(ctx, target, level, format, type, pixels,
672			 texObj, texImage);
673   }
674
675
676   /* Unmap */
677   if (intelImage->mt) {
678      intel_miptree_image_unmap(intel, intelImage->mt);
679      intelImage->base.Data = NULL;
680   }
681}
682
683
684static void
685intelGetTexImage(GLcontext * ctx, GLenum target, GLint level,
686                 GLenum format, GLenum type, GLvoid * pixels,
687                 struct gl_texture_object *texObj,
688                 struct gl_texture_image *texImage)
689{
690   intel_get_tex_image(ctx, target, level, format, type, pixels,
691		       texObj, texImage, GL_FALSE);
692}
693
694
695static void
696intelGetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level,
697			   GLvoid *pixels,
698			   struct gl_texture_object *texObj,
699			   struct gl_texture_image *texImage)
700{
701   intel_get_tex_image(ctx, target, level, 0, 0, pixels,
702		       texObj, texImage, GL_TRUE);
703}
704
705
706void
707intelSetTexOffset(__DRIcontext *pDRICtx, GLint texname,
708		  unsigned long long offset, GLint depth, GLuint pitch)
709{
710   struct intel_context *intel = pDRICtx->driverPrivate;
711   struct gl_texture_object *tObj = _mesa_lookup_texture(&intel->ctx, texname);
712   struct intel_texture_object *intelObj = intel_texture_object(tObj);
713
714   if (!intelObj)
715      return;
716
717   if (intelObj->mt)
718      intel_miptree_release(intel, &intelObj->mt);
719
720   intelObj->imageOverride = GL_TRUE;
721   intelObj->depthOverride = depth;
722   intelObj->pitchOverride = pitch;
723
724   if (offset)
725      intelObj->textureOffset = offset;
726}
727
728void
729intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
730		   GLint glx_texture_format,
731		   __DRIdrawable *dPriv)
732{
733   struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
734   struct intel_context *intel = pDRICtx->driverPrivate;
735   struct intel_texture_object *intelObj;
736   struct intel_texture_image *intelImage;
737   struct intel_mipmap_tree *mt;
738   struct intel_renderbuffer *rb;
739   struct gl_texture_unit *texUnit;
740   struct gl_texture_object *texObj;
741   struct gl_texture_image *texImage;
742   int level = 0, type, format, internalFormat;
743
744   texUnit = &intel->ctx.Texture.Unit[intel->ctx.Texture.CurrentUnit];
745   texObj = _mesa_select_tex_object(&intel->ctx, texUnit, target);
746   intelObj = intel_texture_object(texObj);
747
748   if (!intelObj)
749      return;
750
751   intel_update_renderbuffers(pDRICtx, dPriv);
752
753   rb = intel_fb->color_rb[0];
754   /* If the region isn't set, then intel_update_renderbuffers was unable
755    * to get the buffers for the drawable.
756    */
757   if (rb->region == NULL)
758      return;
759
760   type = GL_BGRA;
761   format = GL_UNSIGNED_BYTE;
762   if (glx_texture_format == GLX_TEXTURE_FORMAT_RGB_EXT)
763      internalFormat = GL_RGB;
764   else
765      internalFormat = GL_RGBA;
766
767   mt = intel_miptree_create_for_region(intel, target,
768					internalFormat,
769					0, 0, rb->region, 1, 0);
770   if (mt == NULL)
771       return;
772
773   _mesa_lock_texture(&intel->ctx, texObj);
774
775   texImage = _mesa_get_tex_image(&intel->ctx, texObj, target, level);
776   intelImage = intel_texture_image(texImage);
777
778   if (intelImage->mt) {
779      intel_miptree_release(intel, &intelImage->mt);
780      assert(!texImage->Data);
781   }
782   if (intelObj->mt)
783      intel_miptree_release(intel, &intelObj->mt);
784
785   intelObj->mt = mt;
786   _mesa_init_teximage_fields(&intel->ctx, target, texImage,
787			      rb->region->width, rb->region->height, 1,
788			      0, internalFormat);
789
790   intelImage->face = target_to_face(target);
791   intelImage->level = level;
792   texImage->RowStride = rb->region->pitch;
793   intel_miptree_reference(&intelImage->mt, intelObj->mt);
794
795   if (!intel_miptree_match_image(intelObj->mt, &intelImage->base,
796				  intelImage->face, intelImage->level)) {
797	   fprintf(stderr, "miptree doesn't match image\n");
798   }
799
800   _mesa_unlock_texture(&intel->ctx, texObj);
801}
802
803void
804intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
805{
806   /* The old interface didn't have the format argument, so copy our
807    * implementation's behavior at the time.
808    */
809   intelSetTexBuffer2(pDRICtx, target, GLX_TEXTURE_FORMAT_RGBA_EXT, dPriv);
810}
811
812
813void
814intelInitTextureImageFuncs(struct dd_function_table *functions)
815{
816   functions->TexImage1D = intelTexImage1D;
817   functions->TexImage2D = intelTexImage2D;
818   functions->TexImage3D = intelTexImage3D;
819   functions->GetTexImage = intelGetTexImage;
820
821   functions->CompressedTexImage2D = intelCompressedTexImage2D;
822   functions->GetCompressedTexImage = intelGetCompressedTexImage;
823}
824