intel_tex_image.c revision 8f30ceaaefc33401b08739a16ce1c5638d6432fa 
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/image.h"
11#include "main/texcompress.h"
12#include "main/texstore.h"
13#include "main/texgetimage.h"
14#include "main/texobj.h"
15#include "main/texstore.h"
16#include "main/teximage.h"
17
18#include "intel_context.h"
19#include "intel_mipmap_tree.h"
20#include "intel_buffer_objects.h"
21#include "intel_batchbuffer.h"
22#include "intel_tex.h"
23#include "intel_blit.h"
24#include "intel_fbo.h"
25
26#define FILE_DEBUG_FLAG DEBUG_TEXTURE
27
28/* Functions to store texture images.  Where possible, mipmap_tree's
29 * will be created or further instantiated with image data, otherwise
30 * images will be stored in malloc'd memory.  A validation step is
31 * required to pull those images into a mipmap tree, or otherwise
32 * decide a fallback is required.
33 */
34
35
36static int
37logbase2(int n)
38{
39   GLint i = 1;
40   GLint log2 = 0;
41
42   while (n > i) {
43      i *= 2;
44      log2++;
45   }
46
47   return log2;
48}
49
50
51/* Otherwise, store it in memory if (Border != 0) or (any dimension ==
52 * 1).
53 *
54 * Otherwise, if max_level >= level >= min_level, create tree with
55 * space for textures from min_level down to max_level.
56 *
57 * Otherwise, create tree with space for textures from (level
58 * 0)..(1x1).  Consider pruning this tree at a validation if the
59 * saving is worth it.
60 */
61static void
62guess_and_alloc_mipmap_tree(struct intel_context *intel,
63                            struct intel_texture_object *intelObj,
64                            struct intel_texture_image *intelImage,
65			    GLboolean expect_accelerated_upload)
66{
67   GLuint firstLevel;
68   GLuint lastLevel;
69   GLuint width = intelImage->base.Width;
70   GLuint height = intelImage->base.Height;
71   GLuint depth = intelImage->base.Depth;
72   GLuint l2width, l2height, l2depth;
73   GLuint i, comp_byte = 0;
74   GLuint texelBytes;
75
76   DBG("%s\n", __FUNCTION__);
77
78   if (intelImage->base.Border ||
79       ((intelImage->base._BaseFormat == GL_DEPTH_COMPONENT) &&
80        ((intelObj->base.WrapS == GL_CLAMP_TO_BORDER) ||
81         (intelObj->base.WrapT == GL_CLAMP_TO_BORDER))))
82      return;
83
84   if (intelImage->level > intelObj->base.BaseLevel &&
85       (intelImage->base.Width == 1 ||
86        (intelObj->base.Target != GL_TEXTURE_1D &&
87         intelImage->base.Height == 1) ||
88        (intelObj->base.Target == GL_TEXTURE_3D &&
89         intelImage->base.Depth == 1)))
90      return;
91
92   /* If this image disrespects BaseLevel, allocate from level zero.
93    * Usually BaseLevel == 0, so it's unlikely to happen.
94    */
95   if (intelImage->level < intelObj->base.BaseLevel)
96      firstLevel = 0;
97   else
98      firstLevel = intelObj->base.BaseLevel;
99
100
101   /* Figure out image dimensions at start level.
102    */
103   for (i = intelImage->level; i > firstLevel; i--) {
104      width <<= 1;
105      if (height != 1)
106         height <<= 1;
107      if (depth != 1)
108         depth <<= 1;
109   }
110
111   /* Guess a reasonable value for lastLevel.  This is probably going
112    * to be wrong fairly often and might mean that we have to look at
113    * resizable buffers, or require that buffers implement lazy
114    * pagetable arrangements.
115    */
116   if ((intelObj->base.MinFilter == GL_NEAREST ||
117        intelObj->base.MinFilter == GL_LINEAR) &&
118       intelImage->level == firstLevel) {
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      return (format == GL_BGRA &&
181              (type == GL_UNSIGNED_BYTE ||
182               type == GL_UNSIGNED_INT_8_8_8_8_REV) &&
183              mesa_format == MESA_FORMAT_ARGB8888);
184   case 3:
185   case GL_RGB:
186      return (format == GL_RGB &&
187              type == GL_UNSIGNED_SHORT_5_6_5 &&
188              mesa_format == MESA_FORMAT_RGB565);
189   case GL_YCBCR_MESA:
190      return (type == GL_UNSIGNED_SHORT_8_8_MESA || type == GL_UNSIGNED_BYTE);
191   default:
192      return GL_FALSE;
193   }
194}
195
196
197/* XXX: Do this for TexSubImage also:
198 */
199static GLboolean
200try_pbo_upload(struct intel_context *intel,
201               struct intel_texture_image *intelImage,
202               const struct gl_pixelstore_attrib *unpack,
203               GLint internalFormat,
204               GLint width, GLint height,
205               GLenum format, GLenum type, const void *pixels)
206{
207   struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
208   GLuint src_offset, src_stride;
209   GLuint dst_x, dst_y, dst_stride;
210   dri_bo *dst_buffer = intel_region_buffer(intel,
211					    intelImage->mt->region,
212					    INTEL_WRITE_FULL);
213
214   if (!_mesa_is_bufferobj(unpack->BufferObj) ||
215       intel->ctx._ImageTransferState ||
216       unpack->SkipPixels || unpack->SkipRows) {
217      DBG("%s: failure 1\n", __FUNCTION__);
218      return GL_FALSE;
219   }
220
221   /* note: potential 64-bit ptr to 32-bit int cast */
222   src_offset = (GLuint) (unsigned long) pixels;
223
224   if (unpack->RowLength > 0)
225      src_stride = unpack->RowLength;
226   else
227      src_stride = width;
228
229   intel_miptree_get_image_offset(intelImage->mt, intelImage->level,
230				  intelImage->face, 0,
231				  &dst_x, &dst_y);
232
233   dst_stride = intelImage->mt->pitch;
234
235   if (drm_intel_bo_references(intel->batch->buf, dst_buffer))
236      intelFlush(&intel->ctx);
237   LOCK_HARDWARE(intel);
238   {
239      dri_bo *src_buffer = intel_bufferobj_buffer(intel, pbo, INTEL_READ);
240
241      if (!intelEmitCopyBlit(intel,
242			     intelImage->mt->cpp,
243			     src_stride, src_buffer, src_offset, GL_FALSE,
244			     dst_stride, dst_buffer, 0, GL_FALSE,
245			     0, 0, dst_x, dst_y, width, height,
246			     GL_COPY)) {
247	 UNLOCK_HARDWARE(intel);
248	 return GL_FALSE;
249      }
250   }
251   UNLOCK_HARDWARE(intel);
252
253   return GL_TRUE;
254}
255
256
257static GLboolean
258try_pbo_zcopy(struct intel_context *intel,
259              struct intel_texture_image *intelImage,
260              const struct gl_pixelstore_attrib *unpack,
261              GLint internalFormat,
262              GLint width, GLint height,
263              GLenum format, GLenum type, const void *pixels)
264{
265   struct intel_buffer_object *pbo = intel_buffer_object(unpack->BufferObj);
266   GLuint src_offset, src_stride;
267   GLuint dst_x, dst_y, dst_stride;
268
269   if (!_mesa_is_bufferobj(unpack->BufferObj) ||
270       intel->ctx._ImageTransferState ||
271       unpack->SkipPixels || unpack->SkipRows) {
272      DBG("%s: failure 1\n", __FUNCTION__);
273      return GL_FALSE;
274   }
275
276   /* note: potential 64-bit ptr to 32-bit int cast */
277   src_offset = (GLuint) (unsigned long) pixels;
278
279   if (unpack->RowLength > 0)
280      src_stride = unpack->RowLength;
281   else
282      src_stride = width;
283
284   intel_miptree_get_image_offset(intelImage->mt, intelImage->level,
285				  intelImage->face, 0,
286				  &dst_x, &dst_y);
287
288   dst_stride = intelImage->mt->pitch;
289
290   if (src_stride != dst_stride || dst_x != 0 || dst_y != 0 ||
291       src_offset != 0) {
292      DBG("%s: failure 2\n", __FUNCTION__);
293      return GL_FALSE;
294   }
295
296   intel_region_attach_pbo(intel, intelImage->mt->region, pbo);
297
298   return GL_TRUE;
299}
300
301
302static void
303intelTexImage(GLcontext * ctx,
304              GLint dims,
305              GLenum target, GLint level,
306              GLint internalFormat,
307              GLint width, GLint height, GLint depth,
308              GLint border,
309              GLenum format, GLenum type, const void *pixels,
310              const struct gl_pixelstore_attrib *unpack,
311              struct gl_texture_object *texObj,
312              struct gl_texture_image *texImage, GLsizei imageSize,
313              GLboolean compressed)
314{
315   struct intel_context *intel = intel_context(ctx);
316   struct intel_texture_object *intelObj = intel_texture_object(texObj);
317   struct intel_texture_image *intelImage = intel_texture_image(texImage);
318   GLint postConvWidth = width;
319   GLint postConvHeight = height;
320   GLint texelBytes, sizeInBytes;
321   GLuint dstRowStride = 0, srcRowStride = texImage->RowStride;
322
323   DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__,
324       _mesa_lookup_enum_by_nr(target), level, width, height, depth, border);
325
326   intelImage->face = target_to_face(target);
327   intelImage->level = level;
328
329   if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) {
330      _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth,
331                                         &postConvHeight);
332   }
333
334   if (_mesa_is_format_compressed(texImage->TexFormat)) {
335      texelBytes = 0;
336   }
337   else {
338      texelBytes = _mesa_get_format_bytes(texImage->TexFormat);
339
340      /* Minimum pitch of 32 bytes */
341      if (postConvWidth * texelBytes < 32) {
342	 postConvWidth = 32 / texelBytes;
343	 texImage->RowStride = postConvWidth;
344      }
345
346      if (!intelImage->mt) {
347	  assert(texImage->RowStride == postConvWidth);
348      }
349   }
350
351   /* Release the reference to a potentially orphaned buffer.
352    * Release any old malloced memory.
353    */
354   if (intelImage->mt) {
355      intel_miptree_release(intel, &intelImage->mt);
356      assert(!texImage->Data);
357   }
358   else if (texImage->Data) {
359      _mesa_free_texmemory(texImage->Data);
360      texImage->Data = NULL;
361   }
362
363   /* If this is the only texture image in the tree, could call
364    * bmBufferData with NULL data to free the old block and avoid
365    * waiting on any outstanding fences.
366    */
367   if (intelObj->mt &&
368       intelObj->mt->first_level == level &&
369       intelObj->mt->last_level == level &&
370       intelObj->mt->target != GL_TEXTURE_CUBE_MAP_ARB &&
371       !intel_miptree_match_image(intelObj->mt, &intelImage->base)) {
372
373      DBG("release it\n");
374      intel_miptree_release(intel, &intelObj->mt);
375      assert(!intelObj->mt);
376   }
377
378   if (!intelObj->mt) {
379      guess_and_alloc_mipmap_tree(intel, intelObj, intelImage, pixels == NULL);
380      if (!intelObj->mt) {
381	 DBG("guess_and_alloc_mipmap_tree: failed\n");
382      }
383   }
384
385   assert(!intelImage->mt);
386
387   if (intelObj->mt &&
388       intel_miptree_match_image(intelObj->mt, &intelImage->base)) {
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   }
671   else {
672      _mesa_get_teximage(ctx, target, level, format, type, pixels,
673                         texObj, texImage);
674   }
675
676
677   /* Unmap */
678   if (intelImage->mt) {
679      intel_miptree_image_unmap(intel, intelImage->mt);
680      intelImage->base.Data = NULL;
681   }
682}
683
684
685static void
686intelGetTexImage(GLcontext * ctx, GLenum target, GLint level,
687                 GLenum format, GLenum type, GLvoid * pixels,
688                 struct gl_texture_object *texObj,
689                 struct gl_texture_image *texImage)
690{
691   intel_get_tex_image(ctx, target, level, format, type, pixels,
692		       texObj, texImage, GL_FALSE);
693}
694
695
696static void
697intelGetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level,
698			   GLvoid *pixels,
699			   struct gl_texture_object *texObj,
700			   struct gl_texture_image *texImage)
701{
702   intel_get_tex_image(ctx, target, level, 0, 0, pixels,
703		       texObj, texImage, GL_TRUE);
704}
705
706
707void
708intelSetTexOffset(__DRIcontext *pDRICtx, GLint texname,
709		  unsigned long long offset, GLint depth, GLuint pitch)
710{
711   struct intel_context *intel = pDRICtx->driverPrivate;
712   struct gl_texture_object *tObj = _mesa_lookup_texture(&intel->ctx, texname);
713   struct intel_texture_object *intelObj = intel_texture_object(tObj);
714
715   if (!intelObj)
716      return;
717
718   if (intelObj->mt)
719      intel_miptree_release(intel, &intelObj->mt);
720
721   intelObj->imageOverride = GL_TRUE;
722   intelObj->depthOverride = depth;
723   intelObj->pitchOverride = pitch;
724
725   if (offset)
726      intelObj->textureOffset = offset;
727}
728
729void
730intelSetTexBuffer2(__DRIcontext *pDRICtx, GLint target,
731		   GLint glx_texture_format,
732		   __DRIdrawable *dPriv)
733{
734   struct intel_framebuffer *intel_fb = dPriv->driverPrivate;
735   struct intel_context *intel = pDRICtx->driverPrivate;
736   struct intel_texture_object *intelObj;
737   struct intel_texture_image *intelImage;
738   struct intel_mipmap_tree *mt;
739   struct intel_renderbuffer *rb;
740   struct gl_texture_unit *texUnit;
741   struct gl_texture_object *texObj;
742   struct gl_texture_image *texImage;
743   int level = 0, internalFormat;
744
745   texUnit = &intel->ctx.Texture.Unit[intel->ctx.Texture.CurrentUnit];
746   texObj = _mesa_select_tex_object(&intel->ctx, texUnit, target);
747   intelObj = intel_texture_object(texObj);
748
749   if (!intelObj)
750      return;
751
752   intel_update_renderbuffers(pDRICtx, dPriv);
753
754   rb = intel_fb->color_rb[0];
755   /* If the region isn't set, then intel_update_renderbuffers was unable
756    * to get the buffers for the drawable.
757    */
758   if (rb->region == NULL)
759      return;
760
761   if (glx_texture_format == GLX_TEXTURE_FORMAT_RGB_EXT)
762      internalFormat = GL_RGB;
763   else
764      internalFormat = GL_RGBA;
765
766   mt = intel_miptree_create_for_region(intel, target,
767					internalFormat,
768					0, 0, rb->region, 1, 0);
769   if (mt == NULL)
770       return;
771
772   _mesa_lock_texture(&intel->ctx, texObj);
773
774   texImage = _mesa_get_tex_image(&intel->ctx, texObj, target, level);
775   intelImage = intel_texture_image(texImage);
776
777   if (intelImage->mt) {
778      intel_miptree_release(intel, &intelImage->mt);
779      assert(!texImage->Data);
780   }
781   if (intelObj->mt)
782      intel_miptree_release(intel, &intelObj->mt);
783
784   intelObj->mt = mt;
785   _mesa_init_teximage_fields(&intel->ctx, target, texImage,
786			      rb->region->width, rb->region->height, 1,
787			      0, internalFormat);
788
789   intelImage->face = target_to_face(target);
790   intelImage->level = level;
791   if (glx_texture_format == GLX_TEXTURE_FORMAT_RGB_EXT)
792      texImage->TexFormat = MESA_FORMAT_XRGB8888;
793   else
794      texImage->TexFormat = MESA_FORMAT_ARGB8888;
795   texImage->RowStride = rb->region->pitch;
796   intel_miptree_reference(&intelImage->mt, intelObj->mt);
797
798   if (!intel_miptree_match_image(intelObj->mt, &intelImage->base)) {
799	   fprintf(stderr, "miptree doesn't match image\n");
800   }
801
802   _mesa_unlock_texture(&intel->ctx, texObj);
803}
804
805void
806intelSetTexBuffer(__DRIcontext *pDRICtx, GLint target, __DRIdrawable *dPriv)
807{
808   /* The old interface didn't have the format argument, so copy our
809    * implementation's behavior at the time.
810    */
811   intelSetTexBuffer2(pDRICtx, target, GLX_TEXTURE_FORMAT_RGBA_EXT, dPriv);
812}
813
814
815void
816intelInitTextureImageFuncs(struct dd_function_table *functions)
817{
818   functions->TexImage1D = intelTexImage1D;
819   functions->TexImage2D = intelTexImage2D;
820   functions->TexImage3D = intelTexImage3D;
821   functions->GetTexImage = intelGetTexImage;
822
823   functions->CompressedTexImage2D = intelCompressedTexImage2D;
824   functions->GetCompressedTexImage = intelGetCompressedTexImage;
825}
826