intel_tex_image.c revision 34474fa4119378ef9fbb9fb557cc19c0a1ca1f7e 
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/formats.h"
10#include "main/texcompress.h"
11#include "main/texstore.h"
12#include "main/texgetimage.h"
13#include "main/texobj.h"
14#include "main/texstore.h"
15#include "main/teximage.h"
16
17#include "intel_context.h"
18#include "intel_mipmap_tree.h"
19#include "intel_buffer_objects.h"
20#include "intel_batchbuffer.h"
21#include "intel_tex.h"
22#include "intel_blit.h"
23#include "intel_fbo.h"
24
25#define FILE_DEBUG_FLAG DEBUG_TEXTURE
26
27/* Functions to store texture images.  Where possible, mipmap_tree's
28 * will be created or further instantiated with image data, otherwise
29 * images will be stored in malloc'd memory.  A validation step is
30 * required to pull those images into a mipmap tree, or otherwise
31 * decide a fallback is required.
32 */
33
34
35static int
36logbase2(int n)
37{
38   GLint i = 1;
39   GLint log2 = 0;
40
41   while (n > i) {
42      i *= 2;
43      log2++;
44   }
45
46   return log2;
47}
48
49
50/* Otherwise, store it in memory if (Border != 0) or (any dimension ==
51 * 1).
52 *
53 * Otherwise, if max_level >= level >= min_level, create tree with
54 * space for textures from min_level down to max_level.
55 *
56 * Otherwise, create tree with space for textures from (level
57 * 0)..(1x1).  Consider pruning this tree at a validation if the
58 * saving is worth it.
59 */
60static void
61guess_and_alloc_mipmap_tree(struct intel_context *intel,
62                            struct intel_texture_object *intelObj,
63                            struct intel_texture_image *intelImage,
64			    GLboolean expect_accelerated_upload)
65{
66   GLuint firstLevel;
67   GLuint lastLevel;
68   GLuint width = intelImage->base.Width;
69   GLuint height = intelImage->base.Height;
70   GLuint depth = intelImage->base.Depth;
71   GLuint l2width, l2height, l2depth;
72   GLuint i, comp_byte = 0;
73   GLuint texelBytes;
74
75   DBG("%s\n", __FUNCTION__);
76
77   if (intelImage->base.Border ||
78       ((intelImage->base._BaseFormat == GL_DEPTH_COMPONENT) &&
79        ((intelObj->base.WrapS == GL_CLAMP_TO_BORDER) ||
80         (intelObj->base.WrapT == GL_CLAMP_TO_BORDER))))
81      return;
82
83   if (intelImage->level > intelObj->base.BaseLevel &&
84       (intelImage->base.Width == 1 ||
85        (intelObj->base.Target != GL_TEXTURE_1D &&
86         intelImage->base.Height == 1) ||
87        (intelObj->base.Target == GL_TEXTURE_3D &&
88         intelImage->base.Depth == 1)))
89      return;
90
91   /* If this image disrespects BaseLevel, allocate from level zero.
92    * Usually BaseLevel == 0, so it's unlikely to happen.
93    */
94   if (intelImage->level < intelObj->base.BaseLevel)
95      firstLevel = 0;
96   else
97      firstLevel = intelObj->base.BaseLevel;
98
99
100   /* Figure out image dimensions at start level.
101    */
102   for (i = intelImage->level; i > firstLevel; i--) {
103      width <<= 1;
104      if (height != 1)
105         height <<= 1;
106      if (depth != 1)
107         depth <<= 1;
108   }
109
110   /* Guess a reasonable value for lastLevel.  This is probably going
111    * to be wrong fairly often and might mean that we have to look at
112    * resizable buffers, or require that buffers implement lazy
113    * pagetable arrangements.
114    */
115   if ((intelObj->base.MinFilter == GL_NEAREST ||
116        intelObj->base.MinFilter == GL_LINEAR) &&
117       intelImage->level == firstLevel &&
118       (intel->gen < 4 || firstLevel == 0)) {
119      lastLevel = firstLevel;
120   }
121   else {
122      l2width = logbase2(width);
123      l2height = logbase2(height);
124      l2depth = logbase2(depth);
125      lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth);
126   }
127
128   assert(!intelObj->mt);
129   if (_mesa_is_format_compressed(intelImage->base.TexFormat))
130      comp_byte = intel_compressed_num_bytes(intelImage->base.TexFormat);
131
132   texelBytes = _mesa_get_format_bytes(intelImage->base.TexFormat);
133
134   intelObj->mt = intel_miptree_create(intel,
135                                       intelObj->base.Target,
136                                       intelImage->base._BaseFormat,
137                                       intelImage->base.InternalFormat,
138                                       firstLevel,
139                                       lastLevel,
140                                       width,
141                                       height,
142                                       depth,
143                                       texelBytes,
144                                       comp_byte,
145				       expect_accelerated_upload);
146
147   DBG("%s - success\n", __FUNCTION__);
148}
149
150
151
152
153static GLuint
154target_to_face(GLenum target)
155{
156   switch (target) {
157   case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
158   case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
159   case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
160   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
161   case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
162   case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
163      return ((GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
164   default:
165      return 0;
166   }
167}
168
169/* There are actually quite a few combinations this will work for,
170 * more than what I've listed here.
171 */
172static GLboolean
173check_pbo_format(GLint internalFormat,
174                 GLenum format, GLenum type,
175                 gl_format mesa_format)
176{
177   switch (internalFormat) {
178   case 4:
179   case GL_RGBA:
180   case GL_RGBA8:
181      return (format == GL_BGRA &&
182              (type == GL_UNSIGNED_BYTE ||
183               type == GL_UNSIGNED_INT_8_8_8_8_REV) &&
184              mesa_format == MESA_FORMAT_ARGB8888);
185   case 3:
186   case GL_RGB:
187      return (format == GL_RGB &&
188              type == GL_UNSIGNED_SHORT_5_6_5 &&
189              mesa_format == MESA_FORMAT_RGB565);
190   case 1:
191   case GL_LUMINANCE:
192      return (format == GL_LUMINANCE &&
193	      type == GL_UNSIGNED_BYTE &&
194	      mesa_format == MESA_FORMAT_L8);
195   case GL_YCBCR_MESA:
196      return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE);
197   default:
198      return GL_FALSE;
199   }
200}
201
202
203/* XXX: Do this for TexSubImage also:
204 */
205static GLboolean
206try_pbo_upload(struct intel_context *intel,
207               struct intel_texture_image *intelImage,
208               const struct gl_pixelstore_attrib *unpack,
209               GLint internalFormat,
210               GLint width, GLint height,
211               GLenum format, GLenum type, const void *pixels)
212{
213   struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
214   GLuint src_offset, src_stride;
215   GLuint dst_x, dst_y, dst_stride;
216   drm_intel_bo *dst_buffer = intel_region_buffer(intel,
217						  intelImage->mt->region,
218						  INTEL_WRITE_FULL);
219
220   if (!_mesa_is_bufferobj(unpack->BufferObj) ||
221       intel->ctx._ImageTransferState ||
222       unpack->SkipPixels || unpack->SkipRows) {
223      DBG("%s: failure 1\n", __FUNCTION__);
224      return GL_FALSE;
225   }
226
227   /* note: potential 64-bit ptr to 32-bit int cast */
228   src_offset = (GLuint) (unsigned long) pixels;
229
230   if (unpack->RowLength > 0)
231      src_stride = unpack->RowLength;
232   else
233      src_stride = width;
234
235   intel_miptree_get_image_offset(intelImage->mt, intelImage->level,
236				  intelImage->face, 0,
237				  &dst_x, &dst_y);
238
239   dst_stride = intelImage->mt->region->pitch;
240
241   if (drm_intel_bo_references(intel->batch->buf, dst_buffer))
242      intel_flush(&intel->ctx);
243
244   {
245      drm_intel_bo *src_buffer = intel_bufferobj_buffer(intel, pbo, INTEL_READ);
246
247      if (!intelEmitCopyBlit(intel,
248			     intelImage->mt->cpp,
249			     src_stride, src_buffer, src_offset, GL_FALSE,
250			     dst_stride, dst_buffer, 0,
251			     intelImage->mt->region->tiling,
252			     0, 0, dst_x, dst_y, width, height,
253			     GL_COPY)) {
254	 return GL_FALSE;
255      }
256   }
257
258   return GL_TRUE;
259}
260
261
262static GLboolean
263try_pbo_zcopy(struct intel_context *intel,
264              struct intel_texture_image *intelImage,
265              const struct gl_pixelstore_attrib *unpack,
266              GLint internalFormat,
267              GLint width, GLint height,
268              GLenum format, GLenum type, const void *pixels)
269{
270   struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
271   GLuint src_offset, src_stride;
272   GLuint dst_x, dst_y, dst_stride;
273
274   if (!_mesa_is_bufferobj(unpack->BufferObj) ||
275       intel->ctx._ImageTransferState ||
276       unpack->SkipPixels || unpack->SkipRows) {
277      DBG("%s: failure 1\n", __FUNCTION__);
278      return GL_FALSE;
279   }
280
281   /* note: potential 64-bit ptr to 32-bit int cast */
282   src_offset = (GLuint) (unsigned long) pixels;
283
284   if (unpack->RowLength > 0)
285      src_stride = unpack->RowLength;
286   else
287      src_stride = width;
288
289   intel_miptree_get_image_offset(intelImage->mt, intelImage->level,
290				  intelImage->face, 0,
291				  &dst_x, &dst_y);
292
293   dst_stride = intelImage->mt->region->pitch;
294
295   if (src_stride != dst_stride || dst_x != 0 || dst_y != 0 ||
296       src_offset != 0) {
297      DBG("%s: failure 2\n", __FUNCTION__);
298      return GL_FALSE;
299   }
300
301   intel_region_attach_pbo(intel, intelImage->mt->region, pbo);
302
303   return GL_TRUE;
304}
305
306
307static void
308intelTexImage(GLcontext * ctx,
309              GLint dims,
310              GLenum target, GLint level,
311              GLint internalFormat,
312              GLint width, GLint height, GLint depth,
313              GLint border,
314              GLenum format, GLenum type, const void *pixels,
315              const struct gl_pixelstore_attrib *unpack,
316              struct gl_texture_object *texObj,
317              struct gl_texture_image *texImage, GLsizei imageSize,
318              GLboolean compressed)
319{
320   struct intel_context *intel = intel_context(ctx);
321   struct intel_texture_object *intelObj = intel_texture_object(texObj);
322   struct intel_texture_image *intelImage = intel_texture_image(texImage);
323   GLint postConvWidth = width;
324   GLint postConvHeight = height;
325   GLint texelBytes, sizeInBytes;
326   GLuint dstRowStride = 0, srcRowStride = texImage->RowStride;
327
328   DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__,
329       _mesa_lookup_enum_by_nr(target), level, width, height, depth, border);
330
331   intelImage->face = target_to_face(target);
332   intelImage->level = level;
333
334   if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) {
335      _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth,
336                                         &postConvHeight);
337   }
338
339   if (_mesa_is_format_compressed(texImage->TexFormat)) {
340      texelBytes = 0;
341   }
342   else {
343      texelBytes = _mesa_get_format_bytes(texImage->TexFormat);
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
378      DBG("release it\n");
379      intel_miptree_release(intel, &intelObj->mt);
380      assert(!intelObj->mt);
381   }
382
383   if (!intelObj->mt) {
384      guess_and_alloc_mipmap_tree(intel, intelObj, intelImage, pixels == NULL);
385      if (!intelObj->mt) {
386	 DBG("guess_and_alloc_mipmap_tree: failed\n");
387      }
388   }
389
390   assert(!intelImage->mt);
391
392   if (intelObj->mt &&
393       intel_miptree_match_image(intelObj->mt, &intelImage->base)) {
394
395      intel_miptree_reference(&intelImage->mt, intelObj->mt);
396      assert(intelImage->mt);
397   } else if (intelImage->base.Border == 0) {
398      int comp_byte = 0;
399      GLuint texelBytes = _mesa_get_format_bytes(intelImage->base.TexFormat);
400      GLenum baseFormat = _mesa_get_format_base_format(intelImage->base.TexFormat);
401      if (_mesa_is_format_compressed(intelImage->base.TexFormat)) {
402	 comp_byte =
403	    intel_compressed_num_bytes(intelImage->base.TexFormat);
404      }
405
406      /* Didn't fit in the object miptree, but it's suitable for inclusion in
407       * a miptree, so create one just for our level and store it in the image.
408       * It'll get moved into the object miptree at validate time.
409       */
410      intelImage->mt = intel_miptree_create(intel, target,
411					    baseFormat,
412					    internalFormat,
413					    level, level,
414					    width, height, depth,
415					    texelBytes,
416					    comp_byte, pixels == NULL);
417
418   }
419
420   /* PBO fastpaths:
421    */
422   if (dims <= 2 &&
423       intelImage->mt &&
424       _mesa_is_bufferobj(unpack->BufferObj) &&
425       check_pbo_format(internalFormat, format,
426                        type, intelImage->base.TexFormat)) {
427
428      DBG("trying pbo upload\n");
429
430      /* Attempt to texture directly from PBO data (zero copy upload).
431       *
432       * Currently disable as it can lead to worse as well as better
433       * performance (in particular when intel_region_cow() is
434       * required).
435       */
436      if (intelObj->mt == intelImage->mt &&
437          intelObj->mt->first_level == level &&
438          intelObj->mt->last_level == level) {
439
440         if (try_pbo_zcopy(intel, intelImage, unpack,
441                           internalFormat,
442                           width, height, format, type, pixels)) {
443
444            DBG("pbo zcopy upload succeeded\n");
445            return;
446         }
447      }
448
449
450      /* Otherwise, attempt to use the blitter for PBO image uploads.
451       */
452      if (try_pbo_upload(intel, intelImage, unpack,
453                         internalFormat,
454                         width, height, format, type, pixels)) {
455         DBG("pbo upload succeeded\n");
456         return;
457      }
458
459      DBG("pbo upload failed\n");
460   }
461
462   /* intelCopyTexImage calls this function with pixels == NULL, with
463    * the expectation that the mipmap tree will be set up but nothing
464    * more will be done.  This is where those calls return:
465    */
466   if (compressed) {
467      pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
468						      unpack,
469						      "glCompressedTexImage");
470   } else {
471      pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
472					   format, type,
473					   pixels, unpack, "glTexImage");
474   }
475
476   if (intelImage->mt) {
477      if (pixels != NULL) {
478	 /* Flush any queued rendering with the texture before mapping. */
479	 if (drm_intel_bo_references(intel->batch->buf,
480				     intelImage->mt->region->buffer)) {
481	    intel_flush(ctx);
482	 }
483         texImage->Data = intel_miptree_image_map(intel,
484                                                  intelImage->mt,
485                                                  intelImage->face,
486                                                  intelImage->level,
487                                                  &dstRowStride,
488                                                  intelImage->base.ImageOffsets);
489      }
490
491      texImage->RowStride = dstRowStride / intelImage->mt->cpp;
492   }
493   else {
494      /* Allocate regular memory and store the image there temporarily.   */
495      if (_mesa_is_format_compressed(texImage->TexFormat)) {
496         sizeInBytes = _mesa_format_image_size(texImage->TexFormat,
497                                               texImage->Width,
498                                               texImage->Height,
499                                               texImage->Depth);
500         dstRowStride =
501            _mesa_format_row_stride(texImage->TexFormat, width);
502         assert(dims != 3);
503      }
504      else {
505         dstRowStride = postConvWidth * texelBytes;
506         sizeInBytes = depth * dstRowStride * postConvHeight;
507      }
508
509      texImage->Data = _mesa_alloc_texmemory(sizeInBytes);
510   }
511
512   DBG("Upload image %dx%dx%d row_len %d "
513       "pitch %d pixels %d compressed %d\n",
514       width, height, depth, width * texelBytes, dstRowStride,
515       pixels ? 1 : 0, compressed);
516
517   /* Copy data.  Would like to know when it's ok for us to eg. use
518    * the blitter to copy.  Or, use the hardware to do the format
519    * conversion and copy:
520    */
521   if (pixels) {
522       if (compressed) {
523	   if (intelImage->mt) {
524	       struct intel_region *dst = intelImage->mt->region;
525	       _mesa_copy_rect(texImage->Data, dst->cpp, dst->pitch,
526			       0, 0,
527			       intelImage->mt->level[level].width,
528			       (intelImage->mt->level[level].height+3)/4,
529			       pixels,
530			       srcRowStride,
531			       0, 0);
532	   }
533           else {
534	       memcpy(texImage->Data, pixels, imageSize);
535           }
536       }
537       else if (!_mesa_texstore(ctx, dims,
538                                texImage->_BaseFormat,
539                                texImage->TexFormat,
540                                texImage->Data, 0, 0, 0, /* dstX/Y/Zoffset */
541                                dstRowStride,
542                                texImage->ImageOffsets,
543                                width, height, depth,
544                                format, type, pixels, unpack)) {
545          _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
546       }
547   }
548
549   _mesa_unmap_teximage_pbo(ctx, unpack);
550
551   if (intelImage->mt) {
552      if (pixels != NULL)
553         intel_miptree_image_unmap(intel, intelImage->mt);
554      texImage->Data = NULL;
555   }
556}
557
558
559static void
560intelTexImage3D(GLcontext * ctx,
561                GLenum target, GLint level,
562                GLint internalFormat,
563                GLint width, GLint height, GLint depth,
564                GLint border,
565                GLenum format, GLenum type, const void *pixels,
566                const struct gl_pixelstore_attrib *unpack,
567                struct gl_texture_object *texObj,
568                struct gl_texture_image *texImage)
569{
570   intelTexImage(ctx, 3, target, level,
571                 internalFormat, width, height, depth, border,
572                 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
573}
574
575
576static void
577intelTexImage2D(GLcontext * ctx,
578                GLenum target, GLint level,
579                GLint internalFormat,
580                GLint width, GLint height, GLint border,
581                GLenum format, GLenum type, const void *pixels,
582                const struct gl_pixelstore_attrib *unpack,
583                struct gl_texture_object *texObj,
584                struct gl_texture_image *texImage)
585{
586   intelTexImage(ctx, 2, target, level,
587                 internalFormat, width, height, 1, border,
588                 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
589}
590
591
592static void
593intelTexImage1D(GLcontext * ctx,
594                GLenum target, GLint level,
595                GLint internalFormat,
596                GLint width, GLint border,
597                GLenum format, GLenum type, const void *pixels,
598                const struct gl_pixelstore_attrib *unpack,
599                struct gl_texture_object *texObj,
600                struct gl_texture_image *texImage)
601{
602   intelTexImage(ctx, 1, target, level,
603                 internalFormat, width, 1, 1, border,
604                 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
605}
606
607
608static void
609intelCompressedTexImage2D( GLcontext *ctx, GLenum target, GLint level,
610                           GLint internalFormat,
611                           GLint width, GLint height, GLint border,
612                           GLsizei imageSize, const GLvoid *data,
613                           struct gl_texture_object *texObj,
614                           struct gl_texture_image *texImage )
615{
616   intelTexImage(ctx, 2, target, level,
617		 internalFormat, width, height, 1, border,
618		 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE);
619}
620
621
622/**
623 * Need to map texture image into memory before copying image data,
624 * then unmap it.
625 */
626static void
627intel_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
628		    GLenum format, GLenum type, GLvoid * pixels,
629		    struct gl_texture_object *texObj,
630		    struct gl_texture_image *texImage, GLboolean compressed)
631{
632   struct intel_context *intel = intel_context(ctx);
633   struct intel_texture_image *intelImage = intel_texture_image(texImage);
634
635   /* If we're reading from a texture that has been rendered to, need to
636    * make sure rendering is complete.
637    * We could probably predicate this on texObj->_RenderToTexture
638    */
639   intel_flush(ctx);
640
641   /* Map */
642   if (intelImage->mt) {
643      /* Image is stored in hardware format in a buffer managed by the
644       * kernel.  Need to explicitly map and unmap it.
645       */
646      intelImage->base.Data =
647         intel_miptree_image_map(intel,
648                                 intelImage->mt,
649                                 intelImage->face,
650                                 intelImage->level,
651                                 &intelImage->base.RowStride,
652                                 intelImage->base.ImageOffsets);
653      intelImage->base.RowStride /= intelImage->mt->cpp;
654   }
655   else {
656      /* Otherwise, the image should actually be stored in
657       * intelImage->base.Data.  This is pretty confusing for
658       * everybody, I'd much prefer to separate the two functions of
659       * texImage->Data - storage for texture images in main memory
660       * and access (ie mappings) of images.  In other words, we'd
661       * create a new texImage->Map field and leave Data simply for
662       * storage.
663       */
664      assert(intelImage->base.Data);
665   }
666
667
668   if (compressed) {
669      _mesa_get_compressed_teximage(ctx, target, level, pixels,
670				    texObj, texImage);
671   }
672   else {
673      _mesa_get_teximage(ctx, target, level, format, type, pixels,
674                         texObj, texImage);
675   }
676
677
678   /* Unmap */
679   if (intelImage->mt) {
680      intel_miptree_image_unmap(intel, intelImage->mt);
681      intelImage->base.Data = NULL;
682   }
683}
684
685
686static void
687intelGetTexImage(GLcontext * ctx, GLenum target, GLint level,
688                 GLenum format, GLenum type, GLvoid * pixels,
689                 struct gl_texture_object *texObj,
690                 struct gl_texture_image *texImage)
691{
692   intel_get_tex_image(ctx, target, level, format, type, pixels,
693		       texObj, texImage, GL_FALSE);
694}
695
696
697static void
698intelGetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level,
699			   GLvoid *pixels,
700			   struct gl_texture_object *texObj,
701			   struct gl_texture_image *texImage)
702{
703   intel_get_tex_image(ctx, target, level, 0, 0, pixels,
704		       texObj, texImage, GL_TRUE);
705}
706
707void
708intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
709		   GLint texture_format,
710		   __DRIdrawable *dPriv)
711{
712   struct gl_framebuffer *fb = dPriv->driverPrivate;
713   struct intel_context *intel = pDRICtx->driverPrivate;
714   GLcontext *ctx = &intel->ctx;
715   struct intel_texture_object *intelObj;
716   struct intel_texture_image *intelImage;
717   struct intel_mipmap_tree *mt;
718   struct intel_renderbuffer *rb;
719   struct gl_texture_object *texObj;
720   struct gl_texture_image *texImage;
721   int level = 0, internalFormat;
722
723   texObj = _mesa_get_current_tex_object(ctx, target);
724   intelObj = intel_texture_object(texObj);
725
726   if (!intelObj)
727      return;
728
729   if (dPriv->lastStamp != dPriv->dri2.stamp ||
730       !pDRICtx->driScreenPriv->dri2.useInvalidate)
731      intel_update_renderbuffers(pDRICtx, dPriv);
732
733   rb = intel_get_renderbuffer(fb, BUFFER_FRONT_LEFT);
734   /* If the region isn't set, then intel_update_renderbuffers was unable
735    * to get the buffers for the drawable.
736    */
737   if (rb->region == NULL)
738      return;
739
740   if (texture_format == __DRI_TEXTURE_FORMAT_RGB)
741      internalFormat = GL_RGB;
742   else
743      internalFormat = GL_RGBA;
744
745   mt = intel_miptree_create_for_region(intel, target,
746					internalFormat,
747					0, 0, rb->region, 1, 0);
748   if (mt == NULL)
749       return;
750
751   _mesa_lock_texture(&intel->ctx, texObj);
752
753   texImage = _mesa_get_tex_image(&intel->ctx, texObj, target, level);
754   intelImage = intel_texture_image(texImage);
755
756   if (intelImage->mt) {
757      intel_miptree_release(intel, &intelImage->mt);
758      assert(!texImage->Data);
759   }
760   if (intelObj->mt)
761      intel_miptree_release(intel, &intelObj->mt);
762
763   intelObj->mt = mt;
764   _mesa_init_teximage_fields(&intel->ctx, target, texImage,
765			      rb->region->width, rb->region->height, 1,
766			      0, internalFormat);
767
768   intelImage->face = target_to_face(target);
769   intelImage->level = level;
770   if (texture_format == __DRI_TEXTURE_FORMAT_RGB)
771      texImage->TexFormat = MESA_FORMAT_XRGB8888;
772   else
773      texImage->TexFormat = MESA_FORMAT_ARGB8888;
774   texImage->RowStride = rb->region->pitch;
775   intel_miptree_reference(&intelImage->mt, intelObj->mt);
776
777   if (!intel_miptree_match_image(intelObj->mt, &intelImage->base)) {
778	   fprintf(stderr, "miptree doesn't match image\n");
779   }
780
781   _mesa_unlock_texture(&intel->ctx, texObj);
782}
783
784void
785intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
786{
787   /* The old interface didn't have the format argument, so copy our
788    * implementation's behavior at the time.
789    */
790   intelSetTexBuffer2(pDRICtx, target, __DRI_TEXTURE_FORMAT_RGBA, dPriv);
791}
792
793#if FEATURE_OES_EGL_image
794static void
795intel_image_target_texture_2d(GLcontext *ctx, GLenum target,
796			      struct gl_texture_object *texObj,
797			      struct gl_texture_image *texImage,
798			      GLeglImageOES image_handle)
799{
800   struct intel_context *intel = intel_context(ctx);
801   struct intel_texture_object *intelObj = intel_texture_object(texObj);
802   struct intel_texture_image *intelImage = intel_texture_image(texImage);
803   struct intel_mipmap_tree *mt;
804   __DRIscreen *screen;
805   __DRIimage *image;
806
807   screen = intel->intelScreen->driScrnPriv;
808   image = screen->dri2.image->lookupEGLImage(intel->driContext, image_handle,
809					      intel->driContext->loaderPrivate);
810   if (image == NULL)
811      return;
812
813   mt = intel_miptree_create_for_region(intel, target,
814					image->internal_format,
815					0, 0, image->region, 1, 0);
816   if (mt == NULL)
817       return;
818
819   if (intelImage->mt) {
820      intel_miptree_release(intel, &intelImage->mt);
821      assert(!texImage->Data);
822   }
823   if (intelObj->mt)
824      intel_miptree_release(intel, &intelObj->mt);
825
826   intelObj->mt = mt;
827   _mesa_init_teximage_fields(&intel->ctx, target, texImage,
828			      image->region->width, image->region->height, 1,
829			      0, image->internal_format);
830
831   intelImage->face = target_to_face(target);
832   intelImage->level = 0;
833   texImage->TexFormat = image->format;
834   texImage->RowStride = image->region->pitch;
835   intel_miptree_reference(&intelImage->mt, intelObj->mt);
836
837   if (!intel_miptree_match_image(intelObj->mt, &intelImage->base))
838      fprintf(stderr, "miptree doesn't match image\n");
839}
840#endif
841
842void
843intelInitTextureImageFuncs(struct dd_function_table *functions)
844{
845   functions->TexImage1D = intelTexImage1D;
846   functions->TexImage2D = intelTexImage2D;
847   functions->TexImage3D = intelTexImage3D;
848   functions->GetTexImage = intelGetTexImage;
849
850   functions->CompressedTexImage2D = intelCompressedTexImage2D;
851   functions->GetCompressedTexImage = intelGetCompressedTexImage;
852
853#if FEATURE_OES_EGL_image
854   functions->EGLImageTargetTexture2D = intel_image_target_texture_2d;
855#endif
856}
857