1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "main/mfeatures.h"
29 #include "main/bufferobj.h"
30 #include "main/enums.h"
31 #include "main/fbobject.h"
32 #include "main/formats.h"
33 #include "main/image.h"
34 #include "main/imports.h"
35 #include "main/macros.h"
36 #include "main/mipmap.h"
37 #include "main/pack.h"
39 #include "main/pixeltransfer.h"
40 #include "main/texcompress.h"
41 #include "main/texgetimage.h"
42 #include "main/teximage.h"
43 #include "main/texobj.h"
44 #include "main/texstore.h"
46 #include "state_tracker/st_debug.h"
47 #include "state_tracker/st_context.h"
48 #include "state_tracker/st_cb_fbo.h"
49 #include "state_tracker/st_cb_flush.h"
50 #include "state_tracker/st_cb_texture.h"
51 #include "state_tracker/st_format.h"
52 #include "state_tracker/st_texture.h"
53 #include "state_tracker/st_gen_mipmap.h"
54 #include "state_tracker/st_atom.h"
56 #include "pipe/p_context.h"
57 #include "pipe/p_defines.h"
58 #include "util/u_inlines.h"
59 #include "pipe/p_shader_tokens.h"
60 #include "util/u_tile.h"
61 #include "util/u_blit.h"
62 #include "util/u_format.h"
63 #include "util/u_surface.h"
64 #include "util/u_sampler.h"
65 #include "util/u_math.h"
66 #include "util/u_box.h"
68 #define DBG if (0) printf
71 static enum pipe_texture_target
72 gl_target_to_pipe(GLenum target)
76 return PIPE_TEXTURE_1D;
78 return PIPE_TEXTURE_2D;
79 case GL_TEXTURE_RECTANGLE_NV:
80 return PIPE_TEXTURE_RECT;
82 return PIPE_TEXTURE_3D;
83 case GL_TEXTURE_CUBE_MAP_ARB:
84 return PIPE_TEXTURE_CUBE;
85 case GL_TEXTURE_1D_ARRAY_EXT:
86 return PIPE_TEXTURE_1D_ARRAY;
87 case GL_TEXTURE_2D_ARRAY_EXT:
88 return PIPE_TEXTURE_2D_ARRAY;
89 case GL_TEXTURE_BUFFER:
98 /** called via ctx->Driver.NewTextureImage() */
99 static struct gl_texture_image *
100 st_NewTextureImage(struct gl_context * ctx)
102 DBG("%s\n", __FUNCTION__);
104 return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image);
108 /** called via ctx->Driver.DeleteTextureImage() */
110 st_DeleteTextureImage(struct gl_context * ctx, struct gl_texture_image *img)
112 /* nothing special (yet) for st_texture_image */
113 _mesa_delete_texture_image(ctx, img);
117 /** called via ctx->Driver.NewTextureObject() */
118 static struct gl_texture_object *
119 st_NewTextureObject(struct gl_context * ctx, GLuint name, GLenum target)
121 struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object);
123 DBG("%s\n", __FUNCTION__);
124 _mesa_initialize_texture_object(&obj->base, name, target);
129 /** called via ctx->Driver.DeleteTextureObject() */
131 st_DeleteTextureObject(struct gl_context *ctx,
132 struct gl_texture_object *texObj)
134 struct st_context *st = st_context(ctx);
135 struct st_texture_object *stObj = st_texture_object(texObj);
137 pipe_resource_reference(&stObj->pt, NULL);
138 if (stObj->sampler_view) {
139 if (stObj->sampler_view->context != st->pipe) {
140 /* Take "ownership" of this texture sampler view by setting
141 * its context pointer to this context. This avoids potential
142 * crashes when the texture object is shared among contexts
143 * and the original/owner context has already been destroyed.
145 stObj->sampler_view->context = st->pipe;
147 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
149 _mesa_delete_texture_object(ctx, texObj);
153 /** called via ctx->Driver.FreeTextureImageBuffer() */
155 st_FreeTextureImageBuffer(struct gl_context * ctx, struct gl_texture_image *texImage)
157 struct st_texture_image *stImage = st_texture_image(texImage);
159 DBG("%s\n", __FUNCTION__);
162 pipe_resource_reference(&stImage->pt, NULL);
165 if (stImage->TexData) {
166 _mesa_align_free(stImage->TexData);
167 stImage->TexData = NULL;
172 /** called via ctx->Driver.MapTextureImage() */
174 st_MapTextureImage(struct gl_context *ctx,
175 struct gl_texture_image *texImage,
176 GLuint slice, GLuint x, GLuint y, GLuint w, GLuint h,
178 GLubyte **mapOut, GLint *rowStrideOut)
180 struct st_context *st = st_context(ctx);
181 struct st_texture_image *stImage = st_texture_image(texImage);
186 if (mode & GL_MAP_READ_BIT)
187 pipeMode |= PIPE_TRANSFER_READ;
188 if (mode & GL_MAP_WRITE_BIT)
189 pipeMode |= PIPE_TRANSFER_WRITE;
191 map = st_texture_image_map(st, stImage, slice, pipeMode, x, y, w, h);
194 *rowStrideOut = stImage->transfer->stride;
203 /** called via ctx->Driver.UnmapTextureImage() */
205 st_UnmapTextureImage(struct gl_context *ctx,
206 struct gl_texture_image *texImage,
209 struct st_context *st = st_context(ctx);
210 struct st_texture_image *stImage = st_texture_image(texImage);
211 st_texture_image_unmap(st, stImage);
216 * From linux kernel i386 header files, copes with odd sizes better
217 * than COPY_DWORDS would:
218 * XXX Put this in src/mesa/main/imports.h ???
220 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
222 __memcpy(void *to, const void *from, size_t n)
225 __asm__ __volatile__("rep ; movsl\n\t"
229 "1:\ttestb $1,%b4\n\t"
231 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2)
232 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from)
237 #define __memcpy(a,b,c) memcpy(a,b,c)
242 * The system memcpy (at least on ubuntu 5.10) has problems copying
243 * to agp (writecombined) memory from a source which isn't 64-byte
244 * aligned - there is a 4x performance falloff.
246 * The x86 __memcpy is immune to this but is slightly slower
247 * (10%-ish) than the system memcpy.
249 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
250 * isn't much faster than x86_memcpy for agp copies.
252 * TODO: switch dynamically.
255 do_memcpy(void *dest, const void *src, size_t n)
257 if ((((unsigned long) src) & 63) || (((unsigned long) dest) & 63)) {
258 return __memcpy(dest, src, n);
261 return memcpy(dest, src, n);
266 * Return default texture resource binding bitmask for the given format.
269 default_bindings(struct st_context *st, enum pipe_format format)
271 struct pipe_screen *screen = st->pipe->screen;
272 const unsigned target = PIPE_TEXTURE_2D;
275 if (util_format_is_depth_or_stencil(format))
276 bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_DEPTH_STENCIL;
278 bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
280 if (screen->is_format_supported(screen, format, target, 0, bindings))
284 format = util_format_linear(format);
286 if (screen->is_format_supported(screen, format, target, 0, bindings))
289 return PIPE_BIND_SAMPLER_VIEW;
294 /** Return number of image dimensions (1, 2 or 3) for a texture target. */
296 get_texture_dims(GLenum target)
300 case GL_TEXTURE_1D_ARRAY_EXT:
301 case GL_TEXTURE_BUFFER:
304 case GL_TEXTURE_CUBE_MAP_ARB:
305 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
306 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
307 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
308 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
309 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
310 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
311 case GL_TEXTURE_RECTANGLE_NV:
312 case GL_TEXTURE_2D_ARRAY_EXT:
317 assert(0 && "invalid texture target in get_texture_dims()");
324 * Given the size of a mipmap image, try to compute the size of the level=0
327 * Note that this isn't always accurate for odd-sized, non-POW textures.
328 * For example, if level=1 and width=40 then the level=0 width may be 80 or 81.
330 * \return GL_TRUE for success, GL_FALSE for failure
333 guess_base_level_size(GLenum target,
334 GLuint width, GLuint height, GLuint depth, GLuint level,
335 GLuint *width0, GLuint *height0, GLuint *depth0)
337 const GLuint dims = get_texture_dims(target);
344 /* Depending on the image's size, we can't always make a guess here */
345 if ((dims >= 1 && width == 1) ||
346 (dims >= 2 && height == 1) ||
347 (dims >= 3 && depth == 1)) {
348 /* we can't determine the image size at level=0 */
352 /* grow the image size until we hit level = 0 */
373 * Try to allocate a pipe_resource object for the given st_texture_object.
375 * We use the given st_texture_image as a clue to determine the size of the
376 * mipmap image at level=0.
378 * \return GL_TRUE for success, GL_FALSE if out of memory.
381 guess_and_alloc_texture(struct st_context *st,
382 struct st_texture_object *stObj,
383 const struct st_texture_image *stImage)
385 GLuint lastLevel, width, height, depth;
387 GLuint ptWidth, ptHeight, ptDepth, ptLayers;
388 enum pipe_format fmt;
390 DBG("%s\n", __FUNCTION__);
394 if (!guess_base_level_size(stObj->base.Target,
395 stImage->base.Width2,
396 stImage->base.Height2,
397 stImage->base.Depth2,
399 &width, &height, &depth)) {
400 /* we can't determine the image size at level=0 */
401 stObj->width0 = stObj->height0 = stObj->depth0 = 0;
402 /* this is not an out of memory error */
406 /* At this point, (width x height x depth) is the expected size of
407 * the level=0 mipmap image.
410 /* Guess a reasonable value for lastLevel. With OpenGL we have no
411 * idea how many mipmap levels will be in a texture until we start
412 * to render with it. Make an educated guess here but be prepared
413 * to re-allocating a texture buffer with space for more (or fewer)
414 * mipmap levels later.
416 if ((stObj->base.Sampler.MinFilter == GL_NEAREST ||
417 stObj->base.Sampler.MinFilter == GL_LINEAR ||
418 stImage->base._BaseFormat == GL_DEPTH_COMPONENT ||
419 stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) &&
420 !stObj->base.GenerateMipmap &&
421 stImage->base.Level == 0) {
422 /* only alloc space for a single mipmap level */
426 /* alloc space for a full mipmap */
427 GLuint l2width = util_logbase2(width);
428 GLuint l2height = util_logbase2(height);
429 GLuint l2depth = util_logbase2(depth);
430 lastLevel = MAX2(MAX2(l2width, l2height), l2depth);
433 /* Save the level=0 dimensions */
434 stObj->width0 = width;
435 stObj->height0 = height;
436 stObj->depth0 = depth;
438 fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat);
440 bindings = default_bindings(st, fmt);
442 st_gl_texture_dims_to_pipe_dims(stObj->base.Target,
443 width, height, depth,
444 &ptWidth, &ptHeight, &ptDepth, &ptLayers);
446 stObj->pt = st_texture_create(st,
447 gl_target_to_pipe(stObj->base.Target),
456 DBG("%s returning %d\n", __FUNCTION__, (stObj->pt != NULL));
458 return stObj->pt != NULL;
463 * Called via ctx->Driver.AllocTextureImageBuffer().
464 * If the texture object/buffer already has space for the indicated image,
465 * we're done. Otherwise, allocate memory for the new texture image.
466 * XXX This function and st_TexImage() have some duplicated code. That
467 * can be cleaned up in the future.
470 st_AllocTextureImageBuffer(struct gl_context *ctx,
471 struct gl_texture_image *texImage,
472 gl_format format, GLsizei width,
473 GLsizei height, GLsizei depth)
475 struct st_context *st = st_context(ctx);
476 struct st_texture_image *stImage = st_texture_image(texImage);
477 struct st_texture_object *stObj = st_texture_object(texImage->TexObject);
478 const GLuint level = texImage->Level;
480 DBG("%s\n", __FUNCTION__);
485 assert(!stImage->TexData);
486 assert(!stImage->pt); /* xxx this might be wrong */
488 /* Look if the parent texture object has space for this image */
490 level <= stObj->pt->last_level &&
491 st_texture_match_image(stObj->pt, texImage)) {
492 /* this image will fit in the existing texture object's memory */
493 pipe_resource_reference(&stImage->pt, stObj->pt);
497 /* The parent texture object does not have space for this image */
499 pipe_resource_reference(&stObj->pt, NULL);
500 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
502 if (!guess_and_alloc_texture(st, stObj, stImage)) {
503 /* Probably out of memory.
504 * Try flushing any pending rendering, then retry.
507 if (!guess_and_alloc_texture(st, stObj, stImage)) {
508 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
514 st_texture_match_image(stObj->pt, texImage)) {
515 /* The image will live in the object's mipmap memory */
516 pipe_resource_reference(&stImage->pt, stObj->pt);
521 /* Create a new, temporary texture/resource/buffer to hold this
524 enum pipe_format format =
525 st_mesa_format_to_pipe_format(texImage->TexFormat);
526 GLuint bindings = default_bindings(st, format);
527 GLuint ptWidth, ptHeight, ptDepth, ptLayers;
529 st_gl_texture_dims_to_pipe_dims(stObj->base.Target,
530 width, height, depth,
531 &ptWidth, &ptHeight, &ptDepth, &ptLayers);
533 stImage->pt = st_texture_create(st,
534 gl_target_to_pipe(stObj->base.Target),
542 return stImage->pt != NULL;
548 * Adjust pixel unpack params and image dimensions to strip off the
550 * Gallium doesn't support texture borders. They've seldem been used
551 * and seldom been implemented correctly anyway.
552 * \param unpackNew returns the new pixel unpack parameters
555 strip_texture_border(GLint border,
556 GLint *width, GLint *height, GLint *depth,
557 const struct gl_pixelstore_attrib *unpack,
558 struct gl_pixelstore_attrib *unpackNew)
560 assert(border > 0); /* sanity check */
562 *unpackNew = *unpack;
564 if (unpackNew->RowLength == 0)
565 unpackNew->RowLength = *width;
567 if (depth && unpackNew->ImageHeight == 0)
568 unpackNew->ImageHeight = *height;
570 unpackNew->SkipPixels += border;
572 unpackNew->SkipRows += border;
574 unpackNew->SkipImages += border;
577 *width = *width - 2 * border;
578 if (height && *height >= 3)
579 *height = *height - 2 * border;
580 if (depth && *depth >= 3)
581 *depth = *depth - 2 * border;
586 * Do glTexImage1/2/3D().
589 st_TexImage(struct gl_context * ctx,
591 GLenum target, GLint level,
592 GLint internalFormat,
593 GLint width, GLint height, GLint depth,
595 GLenum format, GLenum type, const void *pixels,
596 const struct gl_pixelstore_attrib *unpack,
597 struct gl_texture_object *texObj,
598 struct gl_texture_image *texImage,
599 GLsizei imageSize, GLboolean compressed_src)
601 struct st_context *st = st_context(ctx);
602 struct st_texture_object *stObj = st_texture_object(texObj);
603 struct st_texture_image *stImage = st_texture_image(texImage);
604 GLuint dstRowStride = 0;
605 struct gl_pixelstore_attrib unpackNB;
606 enum pipe_transfer_usage transfer_usage = 0;
609 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__,
610 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border);
612 /* switch to "normal" */
613 if (stObj->surface_based) {
616 _mesa_clear_texture_object(ctx, texObj);
617 pipe_resource_reference(&stObj->pt, NULL);
619 /* oops, need to init this image again */
620 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
621 internalFormat, format, type);
623 _mesa_init_teximage_fields(ctx, target, texImage,
624 width, height, depth, border,
625 internalFormat, texFormat);
627 stObj->surface_based = GL_FALSE;
630 /* gallium does not support texture borders, strip it off */
632 strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB);
634 texImage->Width = width;
635 texImage->Height = height;
636 texImage->Depth = depth;
637 texImage->Border = 0;
641 assert(texImage->Width == width);
642 assert(texImage->Height == height);
643 assert(texImage->Depth == depth);
646 stImage->base.Face = _mesa_tex_target_to_face(target);
647 stImage->base.Level = level;
649 /* Release the reference to a potentially orphaned buffer.
650 * Release any old malloced memory.
653 pipe_resource_reference(&stImage->pt, NULL);
654 assert(!stImage->TexData);
656 else if (stImage->TexData) {
657 _mesa_align_free(stImage->TexData);
661 * See if the new image is somehow incompatible with the existing
662 * mipmap. If so, free the old mipmap.
665 if (level > (GLint) stObj->pt->last_level ||
666 !st_texture_match_image(stObj->pt, &stImage->base)) {
668 pipe_resource_reference(&stObj->pt, NULL);
670 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
674 if (width == 0 || height == 0 || depth == 0) {
675 /* stop after freeing old image */
680 if (!guess_and_alloc_texture(st, stObj, stImage)) {
681 /* Probably out of memory.
682 * Try flushing any pending rendering, then retry.
685 if (!guess_and_alloc_texture(st, stObj, stImage)) {
686 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
692 assert(!stImage->pt);
694 /* Check if this texture image can live inside the texture object's buffer.
695 * If so, store the image there. Otherwise the image will temporarily live
699 st_texture_match_image(stObj->pt, &stImage->base)) {
701 pipe_resource_reference(&stImage->pt, stObj->pt);
706 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
708 /* Pixel data may come from regular user memory or a PBO. For the later,
709 * do bounds checking and map the PBO to read pixels data from it.
711 * XXX we should try to use a GPU-accelerated path to copy the image data
712 * from the PBO to the texture.
714 if (compressed_src) {
715 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
717 "glCompressedTexImage");
720 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
722 pixels, unpack, "glTexImage");
725 /* for a 1D array upload the image as a series of layer with height = 1 */
726 if (target == GL_TEXTURE_1D_ARRAY) {
732 * Prepare to store the texture data. Either map the gallium texture buffer
733 * memory or malloc space for it.
737 /* We've allocated texture resource, but have no pixel data - all done. */
741 /* Store the image in the gallium transfer object */
742 if (format == GL_DEPTH_COMPONENT &&
743 util_format_is_depth_and_stencil(stImage->pt->format))
744 transfer_usage = PIPE_TRANSFER_READ_WRITE;
746 transfer_usage = PIPE_TRANSFER_WRITE;
748 dstMap = st_texture_image_map(st, stImage, 0,
749 transfer_usage, 0, 0, width, height);
750 if(stImage->transfer)
751 dstRowStride = stImage->transfer->stride;
754 /* Allocate regular memory and store the image there temporarily. */
755 GLuint imageSize = _mesa_format_image_size(texImage->TexFormat,
756 width, height, depth);
757 dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width);
759 stImage->TexData = _mesa_align_malloc(imageSize, 16);
760 dstMap = stImage->TexData;
764 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
769 /* We've allocated texture memory, but have no pixel data - all done. */
773 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
774 width, height, depth, width, dstRowStride);
776 /* Copy user texture image into the mapped texture buffer.
778 if (compressed_src) {
779 const GLuint srcRowStride =
780 _mesa_format_row_stride(texImage->TexFormat, width);
781 if (dstRowStride == srcRowStride) {
782 memcpy(dstMap, pixels, imageSize);
785 GLubyte *dst = dstMap;
786 const char *src = pixels;
787 GLuint i, bw, bh, lines;
788 _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
789 lines = (height + bh - 1) / bh;
791 for (i = 0; i < lines; ++i) {
792 memcpy(dst, src, srcRowStride);
799 const GLuint srcImageStride =
800 _mesa_image_image_stride(unpack, width, height, format, type);
802 const GLubyte *src = (const GLubyte *) pixels;
804 for (i = 0; i < depth; i++) {
805 if (!_mesa_texstore(ctx, dims,
806 texImage->_BaseFormat,
808 0, 0, 0, /* dstX/Y/Zoffset */
810 (GLubyte **) &dstMap, /* dstSlice */
812 format, type, src, unpack)) {
813 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
816 if (stImage->pt && i + 1 < depth) {
817 /* unmap this slice */
818 st_texture_image_unmap(st, stImage);
819 /* map next slice of 3D texture */
820 dstMap = st_texture_image_map(st, stImage, i + 1,
821 transfer_usage, 0, 0,
823 src += srcImageStride;
829 _mesa_unmap_teximage_pbo(ctx, unpack);
831 if (stImage->pt && stImage->transfer) {
832 st_texture_image_unmap(st, stImage);
838 st_TexImage3D(struct gl_context * ctx,
839 GLenum target, GLint level,
840 GLint internalFormat,
841 GLint width, GLint height, GLint depth,
843 GLenum format, GLenum type, const void *pixels,
844 const struct gl_pixelstore_attrib *unpack,
845 struct gl_texture_object *texObj,
846 struct gl_texture_image *texImage)
848 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth,
849 border, format, type, pixels, unpack, texObj, texImage,
855 st_TexImage2D(struct gl_context * ctx,
856 GLenum target, GLint level,
857 GLint internalFormat,
858 GLint width, GLint height, GLint border,
859 GLenum format, GLenum type, const void *pixels,
860 const struct gl_pixelstore_attrib *unpack,
861 struct gl_texture_object *texObj,
862 struct gl_texture_image *texImage)
864 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border,
865 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
870 st_TexImage1D(struct gl_context * ctx,
871 GLenum target, GLint level,
872 GLint internalFormat,
873 GLint width, GLint border,
874 GLenum format, GLenum type, const void *pixels,
875 const struct gl_pixelstore_attrib *unpack,
876 struct gl_texture_object *texObj,
877 struct gl_texture_image *texImage)
879 st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border,
880 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
885 st_CompressedTexImage2D(struct gl_context *ctx, GLenum target, GLint level,
886 GLint internalFormat,
887 GLint width, GLint height, GLint border,
888 GLsizei imageSize, const GLvoid *data,
889 struct gl_texture_object *texObj,
890 struct gl_texture_image *texImage)
892 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border,
893 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE);
899 * glGetTexImage() helper: decompress a compressed texture by rendering
900 * a textured quad. Store the results in the user's buffer.
903 decompress_with_blit(struct gl_context * ctx,
904 GLenum format, GLenum type, GLvoid *pixels,
905 struct gl_texture_image *texImage)
907 struct st_context *st = st_context(ctx);
908 struct pipe_context *pipe = st->pipe;
909 struct st_texture_image *stImage = st_texture_image(texImage);
910 struct st_texture_object *stObj = st_texture_object(texImage->TexObject);
911 struct pipe_sampler_view *src_view =
912 st_get_texture_sampler_view(stObj, pipe);
913 const GLuint width = texImage->Width;
914 const GLuint height = texImage->Height;
915 struct pipe_surface *dst_surface;
916 struct pipe_resource *dst_texture;
917 struct pipe_transfer *tex_xfer;
918 unsigned bind = (PIPE_BIND_RENDER_TARGET | /* util_blit may choose to render */
919 PIPE_BIND_TRANSFER_READ);
921 /* create temp / dest surface */
922 if (!util_create_rgba_surface(pipe, width, height, bind,
923 &dst_texture, &dst_surface)) {
924 _mesa_problem(ctx, "util_create_rgba_surface() failed "
925 "in decompress_with_blit()");
929 /* Disable conditional rendering. */
930 if (st->render_condition) {
931 pipe->render_condition(pipe, NULL, 0);
934 /* Choose the source mipmap level */
935 src_view->u.tex.first_level = src_view->u.tex.last_level = texImage->Level;
937 /* blit/render/decompress */
938 util_blit_pixels_tex(st->blit,
939 src_view, /* pipe_resource (src) */
940 0, 0, /* src x0, y0 */
941 width, height, /* src x1, y1 */
942 dst_surface, /* pipe_surface (dst) */
943 0, 0, /* dst x0, y0 */
944 width, height, /* dst x1, y1 */
946 PIPE_TEX_MIPFILTER_NEAREST);
948 /* Restore conditional rendering state. */
949 if (st->render_condition) {
950 pipe->render_condition(pipe, st->render_condition,
954 /* map the dst_surface so we can read from it */
955 tex_xfer = pipe_get_transfer(pipe,
958 0, 0, width, height);
960 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels);
962 /* copy/pack data into user buffer */
963 if (st_equal_formats(stImage->pt->format, format, type)) {
965 const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format);
966 ubyte *map = pipe_transfer_map(pipe, tex_xfer);
968 for (row = 0; row < height; row++) {
969 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
970 height, format, type, row, 0);
971 memcpy(dest, map, bytesPerRow);
972 map += tex_xfer->stride;
974 pipe_transfer_unmap(pipe, tex_xfer);
977 /* format translation via floats */
979 enum pipe_format pformat = util_format_linear(dst_texture->format);
980 for (row = 0; row < height; row++) {
981 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */
982 GLfloat rgba[4 * MAX_WIDTH];
983 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
984 height, format, type, row, 0);
986 if (ST_DEBUG & DEBUG_FALLBACK)
987 debug_printf("%s: fallback format translation\n", __FUNCTION__);
989 /* get float[4] rgba row from surface */
990 pipe_get_tile_rgba_format(pipe, tex_xfer, 0, row, width, 1,
993 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format,
994 type, dest, &ctx->Pack, transferOps);
998 _mesa_unmap_pbo_dest(ctx, &ctx->Pack);
1000 pipe->transfer_destroy(pipe, tex_xfer);
1002 /* destroy the temp / dest surface */
1003 util_destroy_rgba_surface(dst_texture, dst_surface);
1009 * Called via ctx->Driver.GetTexImage()
1012 st_GetTexImage(struct gl_context * ctx,
1013 GLenum format, GLenum type, GLvoid * pixels,
1014 struct gl_texture_image *texImage)
1016 struct st_texture_image *stImage = st_texture_image(texImage);
1018 if (stImage->pt && util_format_is_s3tc(stImage->pt->format)) {
1019 /* Need to decompress the texture.
1020 * We'll do this by rendering a textured quad (which is hopefully
1021 * faster than using the fallback code in texcompress.c).
1022 * Note that we only expect RGBA formats (no Z/depth formats).
1024 decompress_with_blit(ctx, format, type, pixels, texImage);
1027 _mesa_get_teximage(ctx, format, type, pixels, texImage);
1033 st_TexSubimage(struct gl_context *ctx, GLint dims, GLenum target, GLint level,
1034 GLint xoffset, GLint yoffset, GLint zoffset,
1035 GLint width, GLint height, GLint depth,
1036 GLenum format, GLenum type, const void *pixels,
1037 const struct gl_pixelstore_attrib *packing,
1038 struct gl_texture_object *texObj,
1039 struct gl_texture_image *texImage)
1041 struct st_context *st = st_context(ctx);
1042 struct st_texture_image *stImage = st_texture_image(texImage);
1043 GLuint dstRowStride;
1044 const GLuint srcImageStride =
1045 _mesa_image_image_stride(packing, width, height, format, type);
1048 /* init to silence warning only: */
1049 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE;
1052 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__,
1053 _mesa_lookup_enum_by_nr(target),
1054 level, xoffset, yoffset, width, height);
1057 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format,
1058 type, pixels, packing, "glTexSubImage2D");
1062 /* for a 1D array upload the image as a series of layer with height = 1 */
1063 if (target == GL_TEXTURE_1D_ARRAY) {
1068 /* Map buffer if necessary. Need to lock to prevent other contexts
1069 * from uploading the buffer under us.
1072 if (format == GL_DEPTH_COMPONENT &&
1073 util_format_is_depth_and_stencil(stImage->pt->format))
1074 transfer_usage = PIPE_TRANSFER_READ_WRITE;
1076 transfer_usage = PIPE_TRANSFER_WRITE;
1078 dstMap = st_texture_image_map(st, stImage, zoffset,
1085 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
1089 src = (const GLubyte *) pixels;
1090 dstRowStride = stImage->transfer->stride;
1092 for (i = 0; i < depth; i++) {
1093 if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat,
1094 texImage->TexFormat,
1097 (GLubyte **) &dstMap,
1099 format, type, src, packing)) {
1100 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
1103 if (stImage->pt && i + 1 < depth) {
1104 /* unmap this slice */
1105 st_texture_image_unmap(st, stImage);
1106 /* map next slice of 3D texture */
1107 dstMap = st_texture_image_map(st, stImage,
1112 src += srcImageStride;
1117 _mesa_unmap_teximage_pbo(ctx, packing);
1119 if (stImage->pt && stImage->transfer) {
1120 st_texture_image_unmap(st, stImage);
1127 st_TexSubImage3D(struct gl_context *ctx, GLenum target, GLint level,
1128 GLint xoffset, GLint yoffset, GLint zoffset,
1129 GLsizei width, GLsizei height, GLsizei depth,
1130 GLenum format, GLenum type, const GLvoid *pixels,
1131 const struct gl_pixelstore_attrib *packing,
1132 struct gl_texture_object *texObj,
1133 struct gl_texture_image *texImage)
1135 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
1136 width, height, depth, format, type,
1137 pixels, packing, texObj, texImage);
1142 st_TexSubImage2D(struct gl_context *ctx, GLenum target, GLint level,
1143 GLint xoffset, GLint yoffset,
1144 GLsizei width, GLsizei height,
1145 GLenum format, GLenum type, const GLvoid * pixels,
1146 const struct gl_pixelstore_attrib *packing,
1147 struct gl_texture_object *texObj,
1148 struct gl_texture_image *texImage)
1150 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0,
1151 width, height, 1, format, type,
1152 pixels, packing, texObj, texImage);
1157 st_TexSubImage1D(struct gl_context *ctx, GLenum target, GLint level,
1158 GLint xoffset, GLsizei width, GLenum format, GLenum type,
1159 const GLvoid * pixels,
1160 const struct gl_pixelstore_attrib *packing,
1161 struct gl_texture_object *texObj,
1162 struct gl_texture_image *texImage)
1164 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1,
1165 format, type, pixels, packing, texObj, texImage);
1170 st_CompressedTexSubImage1D(struct gl_context *ctx, GLenum target, GLint level,
1171 GLint xoffset, GLsizei width,
1173 GLsizei imageSize, const GLvoid *data,
1174 struct gl_texture_object *texObj,
1175 struct gl_texture_image *texImage)
1182 st_CompressedTexSubImage2D(struct gl_context *ctx, GLenum target, GLint level,
1183 GLint xoffset, GLint yoffset,
1184 GLsizei width, GLint height,
1186 GLsizei imageSize, const GLvoid *data,
1187 struct gl_texture_object *texObj,
1188 struct gl_texture_image *texImage)
1190 struct st_context *st = st_context(ctx);
1191 struct st_texture_image *stImage = st_texture_image(texImage);
1195 enum pipe_format pformat;
1199 pformat = stImage->pt->format;
1201 dstMap = st_texture_image_map(st, stImage, 0,
1202 PIPE_TRANSFER_WRITE,
1206 srcBlockStride = util_format_get_stride(pformat, width);
1207 dstBlockStride = stImage->transfer->stride;
1209 assert(stImage->pt);
1210 /* TODO find good values for block and strides */
1211 /* TODO also adjust texImage->data for yoffset/xoffset */
1216 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage");
1220 assert(xoffset % util_format_get_blockwidth(pformat) == 0);
1221 assert(yoffset % util_format_get_blockheight(pformat) == 0);
1223 for (y = 0; y < height; y += util_format_get_blockheight(pformat)) {
1224 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1225 const char *src = (const char*)data + srcBlockStride * util_format_get_nblocksy(pformat, y);
1226 char *dst = (char *) dstMap + dstBlockStride * util_format_get_nblocksy(pformat, y);
1227 memcpy(dst, src, util_format_get_stride(pformat, width));
1230 if (stImage->pt && stImage->transfer) {
1231 st_texture_image_unmap(st, stImage);
1237 st_CompressedTexSubImage3D(struct gl_context *ctx, GLenum target, GLint level,
1238 GLint xoffset, GLint yoffset, GLint zoffset,
1239 GLsizei width, GLint height, GLint depth,
1241 GLsizei imageSize, const GLvoid *data,
1242 struct gl_texture_object *texObj,
1243 struct gl_texture_image *texImage)
1251 * Do a CopyTexSubImage operation using a read transfer from the source,
1252 * a write transfer to the destination and get_tile()/put_tile() to access
1253 * the pixels/texels.
1255 * Note: srcY=0=TOP of renderbuffer
1258 fallback_copy_texsubimage(struct gl_context *ctx, GLenum target, GLint level,
1259 struct st_renderbuffer *strb,
1260 struct st_texture_image *stImage,
1262 GLint destX, GLint destY, GLint destZ,
1263 GLint srcX, GLint srcY,
1264 GLsizei width, GLsizei height)
1266 struct st_context *st = st_context(ctx);
1267 struct pipe_context *pipe = st->pipe;
1268 struct pipe_transfer *src_trans;
1270 enum pipe_transfer_usage transfer_usage;
1272 if (ST_DEBUG & DEBUG_FALLBACK)
1273 debug_printf("%s: fallback processing\n", __FUNCTION__);
1275 assert(width <= MAX_WIDTH);
1277 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1278 srcY = strb->Base.Height - srcY - height;
1281 src_trans = pipe_get_transfer(pipe,
1284 strb->rtt_face + strb->rtt_slice,
1289 if ((baseFormat == GL_DEPTH_COMPONENT ||
1290 baseFormat == GL_DEPTH_STENCIL) &&
1291 util_format_is_depth_and_stencil(stImage->pt->format))
1292 transfer_usage = PIPE_TRANSFER_READ_WRITE;
1294 transfer_usage = PIPE_TRANSFER_WRITE;
1296 /* XXX this used to ignore destZ param */
1297 texDest = st_texture_image_map(st, stImage, destZ, transfer_usage,
1298 destX, destY, width, height);
1300 if (baseFormat == GL_DEPTH_COMPONENT ||
1301 baseFormat == GL_DEPTH_STENCIL) {
1302 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F ||
1303 ctx->Pixel.DepthBias != 0.0F);
1306 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1307 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1316 /* To avoid a large temp memory allocation, do copy row by row */
1317 for (row = 0; row < height; row++, srcY += yStep) {
1318 uint data[MAX_WIDTH];
1319 pipe_get_tile_z(pipe, src_trans, 0, srcY, width, 1, data);
1321 _mesa_scale_and_bias_depth_uint(ctx, width, data);
1323 pipe_put_tile_z(pipe, stImage->transfer, 0, row, width, 1, data);
1329 (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
1331 if (tempSrc && texDest) {
1332 const GLint dims = 2;
1333 const GLint dstRowStride = stImage->transfer->stride;
1334 struct gl_texture_image *texImage = &stImage->base;
1335 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking;
1337 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1338 unpack.Invert = GL_TRUE;
1341 /* get float/RGBA image from framebuffer */
1342 /* XXX this usually involves a lot of int/float conversion.
1343 * try to avoid that someday.
1345 pipe_get_tile_rgba_format(pipe, src_trans, 0, 0, width, height,
1346 util_format_linear(strb->texture->format),
1349 /* Store into texture memory.
1350 * Note that this does some special things such as pixel transfer
1351 * ops and format conversion. In particular, if the dest tex format
1352 * is actually RGBA but the user created the texture as GL_RGB we
1353 * need to fill-in/override the alpha channel with 1.0.
1355 _mesa_texstore(ctx, dims,
1356 texImage->_BaseFormat,
1357 texImage->TexFormat,
1360 (GLubyte **) &texDest,
1362 GL_RGBA, GL_FLOAT, tempSrc, /* src */
1366 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
1373 st_texture_image_unmap(st, stImage);
1374 pipe->transfer_destroy(pipe, src_trans);
1380 * If the format of the src renderbuffer and the format of the dest
1381 * texture are compatible (in terms of blitting), return a TGSI writemask
1382 * to be used during the blit.
1383 * If the src/dest are incompatible, return 0.
1386 compatible_src_dst_formats(struct gl_context *ctx,
1387 const struct gl_renderbuffer *src,
1388 const struct gl_texture_image *dst)
1390 /* Get logical base formats for the src and dest.
1391 * That is, use the user-requested formats and not the actual, device-
1393 * For example, the user may have requested an A8 texture but the
1394 * driver may actually be using an RGBA texture format. When we
1395 * copy/blit to that texture, we only want to copy the Alpha channel
1396 * and not the RGB channels.
1398 * Similarly, when the src FBO was created an RGB format may have been
1399 * requested but the driver actually chose an RGBA format. In that case,
1400 * we don't want to copy the undefined Alpha channel to the dest texture
1401 * (it should be 1.0).
1403 const GLenum srcFormat = _mesa_base_fbo_format(ctx, src->InternalFormat);
1404 const GLenum dstFormat = _mesa_base_tex_format(ctx, dst->InternalFormat);
1407 * XXX when we have red-only and red/green renderbuffers we'll need
1408 * to add more cases here (or implement a general-purpose routine that
1409 * queries the existance of the R,G,B,A channels in the src and dest).
1411 if (srcFormat == dstFormat) {
1412 /* This is the same as matching_base_formats, which should
1413 * always pass, as it did previously.
1415 return TGSI_WRITEMASK_XYZW;
1417 else if (srcFormat == GL_RGB && dstFormat == GL_RGBA) {
1418 /* Make sure that A in the dest is 1. The actual src format
1419 * may be RGBA and have undefined A values.
1421 return TGSI_WRITEMASK_XYZ;
1423 else if (srcFormat == GL_RGBA && dstFormat == GL_RGB) {
1424 /* Make sure that A in the dest is 1. The actual dst format
1425 * may be RGBA and will need A=1 to provide proper alpha values
1426 * when sampled later.
1428 return TGSI_WRITEMASK_XYZ;
1431 if (ST_DEBUG & DEBUG_FALLBACK)
1432 debug_printf("%s failed for src %s, dst %s\n",
1434 _mesa_lookup_enum_by_nr(srcFormat),
1435 _mesa_lookup_enum_by_nr(dstFormat));
1446 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1447 * Note that the region to copy has already been clipped so we know we
1448 * won't read from outside the source renderbuffer's bounds.
1450 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1453 st_copy_texsubimage(struct gl_context *ctx,
1454 GLenum target, GLint level,
1455 GLint destX, GLint destY, GLint destZ,
1456 GLint srcX, GLint srcY,
1457 GLsizei width, GLsizei height)
1459 struct gl_texture_unit *texUnit =
1460 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1461 struct gl_texture_object *texObj =
1462 _mesa_select_tex_object(ctx, texUnit, target);
1463 struct gl_texture_image *texImage =
1464 _mesa_select_tex_image(ctx, texObj, target, level);
1465 struct st_texture_image *stImage = st_texture_image(texImage);
1466 const GLenum texBaseFormat = texImage->_BaseFormat;
1467 struct gl_framebuffer *fb = ctx->ReadBuffer;
1468 struct st_renderbuffer *strb;
1469 struct st_context *st = st_context(ctx);
1470 struct pipe_context *pipe = st->pipe;
1471 struct pipe_screen *screen = pipe->screen;
1472 enum pipe_format dest_format, src_format;
1473 GLboolean use_fallback = GL_TRUE;
1474 GLboolean matching_base_formats;
1475 GLuint format_writemask, sample_count;
1476 struct pipe_surface *dest_surface = NULL;
1477 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP);
1479 /* make sure finalize_textures has been called?
1481 if (0) st_validate_state(st);
1483 /* determine if copying depth or color data */
1484 if (texBaseFormat == GL_DEPTH_COMPONENT ||
1485 texBaseFormat == GL_DEPTH_STENCIL) {
1486 strb = st_renderbuffer(fb->_DepthBuffer);
1487 if (strb->Base.Wrapped) {
1488 strb = st_renderbuffer(strb->Base.Wrapped);
1492 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1493 strb = st_renderbuffer(fb->_ColorReadBuffer);
1496 if (!strb || !strb->surface || !stImage->pt) {
1497 debug_printf("%s: null strb or stImage\n", __FUNCTION__);
1501 sample_count = strb->surface->texture->nr_samples;
1502 /* I believe this would be legal, presumably would need to do a resolve
1503 for color, and for depth/stencil spec says to just use one of the
1504 depth/stencil samples per pixel? Need some transfer clarifications. */
1505 assert(sample_count < 2);
1508 assert(strb->surface);
1509 assert(stImage->pt);
1511 src_format = strb->surface->format;
1512 dest_format = stImage->pt->format;
1515 * Determine if the src framebuffer and dest texture have the same
1516 * base format. We need this to detect a case such as the framebuffer
1517 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1518 * texture format stores RGBA we need to set A=1 (overriding the
1519 * framebuffer's alpha values). We can't do that with the blit or
1520 * textured-quad paths.
1522 matching_base_formats =
1523 (_mesa_get_format_base_format(strb->Base.Format) ==
1524 _mesa_get_format_base_format(texImage->TexFormat));
1525 format_writemask = compatible_src_dst_formats(ctx, &strb->Base, texImage);
1527 if (ctx->_ImageTransferState == 0x0) {
1529 if (matching_base_formats &&
1530 src_format == dest_format &&
1533 /* use surface_copy() / blit */
1534 struct pipe_box src_box;
1535 u_box_2d_zslice(srcX, srcY, strb->surface->u.tex.first_layer,
1536 width, height, &src_box);
1538 /* for resource_copy_region(), y=0=top, always */
1539 pipe->resource_copy_region(pipe,
1542 stImage->base.Level,
1543 destX, destY, destZ + stImage->base.Face,
1546 strb->surface->u.tex.level,
1548 use_fallback = GL_FALSE;
1550 else if (format_writemask &&
1551 texBaseFormat != GL_DEPTH_COMPONENT &&
1552 texBaseFormat != GL_DEPTH_STENCIL &&
1553 screen->is_format_supported(screen, src_format,
1554 PIPE_TEXTURE_2D, sample_count,
1555 PIPE_BIND_SAMPLER_VIEW) &&
1556 screen->is_format_supported(screen, dest_format,
1558 PIPE_BIND_RENDER_TARGET)) {
1559 /* draw textured quad to do the copy */
1561 struct pipe_surface surf_tmpl;
1562 memset(&surf_tmpl, 0, sizeof(surf_tmpl));
1563 surf_tmpl.format = util_format_linear(stImage->pt->format);
1564 surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
1565 surf_tmpl.u.tex.level = stImage->base.Level;
1566 surf_tmpl.u.tex.first_layer = stImage->base.Face + destZ;
1567 surf_tmpl.u.tex.last_layer = stImage->base.Face + destZ;
1569 dest_surface = pipe->create_surface(pipe, stImage->pt,
1573 srcY1 = strb->Base.Height - srcY - height;
1574 srcY0 = srcY1 + height;
1578 srcY1 = srcY0 + height;
1581 /* Disable conditional rendering. */
1582 if (st->render_condition) {
1583 pipe->render_condition(pipe, NULL, 0);
1586 util_blit_pixels_writemask(st->blit,
1588 strb->surface->u.tex.level,
1590 srcX + width, srcY1,
1591 strb->surface->u.tex.first_layer,
1594 destX + width, destY + height,
1595 0.0, PIPE_TEX_MIPFILTER_NEAREST,
1598 /* Restore conditional rendering state. */
1599 if (st->render_condition) {
1600 pipe->render_condition(pipe, st->render_condition,
1601 st->condition_mode);
1604 use_fallback = GL_FALSE;
1608 pipe_surface_reference(&dest_surface, NULL);
1612 /* software fallback */
1613 fallback_copy_texsubimage(ctx, target, level,
1614 strb, stImage, texBaseFormat,
1615 destX, destY, destZ,
1616 srcX, srcY, width, height);
1623 st_CopyTexSubImage1D(struct gl_context * ctx, GLenum target, GLint level,
1624 GLint xoffset, GLint x, GLint y, GLsizei width)
1626 const GLint yoffset = 0, zoffset = 0;
1627 const GLsizei height = 1;
1628 st_copy_texsubimage(ctx, target, level,
1629 xoffset, yoffset, zoffset, /* destX,Y,Z */
1630 x, y, width, height); /* src X, Y, size */
1635 st_CopyTexSubImage2D(struct gl_context * ctx, GLenum target, GLint level,
1636 GLint xoffset, GLint yoffset,
1637 GLint x, GLint y, GLsizei width, GLsizei height)
1639 const GLint zoffset = 0;
1640 st_copy_texsubimage(ctx, target, level,
1641 xoffset, yoffset, zoffset, /* destX,Y,Z */
1642 x, y, width, height); /* src X, Y, size */
1647 st_CopyTexSubImage3D(struct gl_context * ctx, GLenum target, GLint level,
1648 GLint xoffset, GLint yoffset, GLint zoffset,
1649 GLint x, GLint y, GLsizei width, GLsizei height)
1651 st_copy_texsubimage(ctx, target, level,
1652 xoffset, yoffset, zoffset, /* destX,Y,Z */
1653 x, y, width, height); /* src X, Y, size */
1658 * Copy image data from stImage into the texture object 'stObj' at level
1662 copy_image_data_to_texture(struct st_context *st,
1663 struct st_texture_object *stObj,
1665 struct st_texture_image *stImage)
1669 const struct gl_texture_image *dstImage =
1670 stObj->base.Image[stImage->base.Face][dstLevel];
1672 assert(dstImage->Width == stImage->base.Width);
1673 assert(dstImage->Height == stImage->base.Height);
1674 assert(dstImage->Depth == stImage->base.Depth);
1678 /* Copy potentially with the blitter:
1680 st_texture_image_copy(st->pipe,
1681 stObj->pt, dstLevel, /* dest texture, level */
1682 stImage->pt, stImage->base.Level, /* src texture, level */
1683 stImage->base.Face);
1685 pipe_resource_reference(&stImage->pt, NULL);
1687 else if (stImage->TexData) {
1688 /* Copy from malloc'd memory */
1689 /* XXX this should be re-examined/tested with a compressed format */
1690 GLuint blockSize = util_format_get_blocksize(stObj->pt->format);
1691 GLuint srcRowStride = stImage->base.Width * blockSize;
1692 GLuint srcSliceStride = stImage->base.Height * srcRowStride;
1693 st_texture_image_data(st,
1700 _mesa_align_free(stImage->TexData);
1701 stImage->TexData = NULL;
1704 pipe_resource_reference(&stImage->pt, stObj->pt);
1709 * Called during state validation. When this function is finished,
1710 * the texture object should be ready for rendering.
1711 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1714 st_finalize_texture(struct gl_context *ctx,
1715 struct pipe_context *pipe,
1716 struct gl_texture_object *tObj)
1718 struct st_context *st = st_context(ctx);
1719 struct st_texture_object *stObj = st_texture_object(tObj);
1720 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
1722 struct st_texture_image *firstImage;
1723 enum pipe_format firstImageFormat;
1724 GLuint ptWidth, ptHeight, ptDepth, ptLayers;
1726 if (stObj->base._Complete) {
1727 /* The texture is complete and we know exactly how many mipmap levels
1728 * are present/needed. This is conditional because we may be called
1729 * from the st_generate_mipmap() function when the texture object is
1730 * incomplete. In that case, we'll have set stObj->lastLevel before
1733 if (stObj->base.Sampler.MinFilter == GL_LINEAR ||
1734 stObj->base.Sampler.MinFilter == GL_NEAREST)
1735 stObj->lastLevel = stObj->base.BaseLevel;
1737 stObj->lastLevel = stObj->base._MaxLevel;
1740 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]);
1743 /* If both firstImage and stObj point to a texture which can contain
1744 * all active images, favour firstImage. Note that because of the
1745 * completeness requirement, we know that the image dimensions
1748 if (firstImage->pt &&
1749 firstImage->pt != stObj->pt &&
1750 (!stObj->pt || firstImage->pt->last_level >= stObj->pt->last_level)) {
1751 pipe_resource_reference(&stObj->pt, firstImage->pt);
1752 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
1755 /* Find gallium format for the Mesa texture */
1756 firstImageFormat = st_mesa_format_to_pipe_format(firstImage->base.TexFormat);
1758 /* Find size of level=0 Gallium mipmap image, plus number of texture layers */
1760 GLuint width, height, depth;
1761 if (!guess_base_level_size(stObj->base.Target,
1762 firstImage->base.Width2,
1763 firstImage->base.Height2,
1764 firstImage->base.Depth2,
1765 firstImage->base.Level,
1766 &width, &height, &depth)) {
1767 width = stObj->width0;
1768 height = stObj->height0;
1769 depth = stObj->depth0;
1771 /* convert GL dims to Gallium dims */
1772 st_gl_texture_dims_to_pipe_dims(stObj->base.Target, width, height, depth,
1773 &ptWidth, &ptHeight, &ptDepth, &ptLayers);
1776 /* If we already have a gallium texture, check that it matches the texture
1777 * object's format, target, size, num_levels, etc.
1780 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) ||
1781 !st_sampler_compat_formats(stObj->pt->format, firstImageFormat) ||
1782 stObj->pt->last_level < stObj->lastLevel ||
1783 stObj->pt->width0 != ptWidth ||
1784 stObj->pt->height0 != ptHeight ||
1785 stObj->pt->depth0 != ptDepth ||
1786 stObj->pt->array_size != ptLayers)
1788 /* The gallium texture does not match the Mesa texture so delete the
1789 * gallium texture now. We'll make a new one below.
1791 pipe_resource_reference(&stObj->pt, NULL);
1792 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
1793 st->dirty.st |= ST_NEW_FRAMEBUFFER;
1797 /* May need to create a new gallium texture:
1800 GLuint bindings = default_bindings(st, firstImageFormat);
1802 stObj->pt = st_texture_create(st,
1803 gl_target_to_pipe(stObj->base.Target),
1813 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
1818 /* Pull in any images not in the object's texture:
1820 for (face = 0; face < nr_faces; face++) {
1822 for (level = stObj->base.BaseLevel; level <= stObj->lastLevel; level++) {
1823 struct st_texture_image *stImage =
1824 st_texture_image(stObj->base.Image[face][level]);
1826 /* Need to import images in main memory or held in other textures.
1828 if (stImage && stObj->pt != stImage->pt) {
1830 (stImage->base.Width == u_minify(stObj->width0, level) &&
1831 stImage->base.Height == u_minify(stObj->height0, level) &&
1832 stImage->base.Depth == u_minify(stObj->depth0, level))) {
1833 /* src image fits expected dest mipmap level size */
1834 copy_image_data_to_texture(st, stObj, level, stImage);
1845 * Returns pointer to a default/dummy texture.
1846 * This is typically used when the current shader has tex/sample instructions
1847 * but the user has not provided a (any) texture(s).
1849 struct gl_texture_object *
1850 st_get_default_texture(struct st_context *st)
1852 if (!st->default_texture) {
1853 static const GLenum target = GL_TEXTURE_2D;
1854 GLubyte pixels[16][16][4];
1855 struct gl_texture_object *texObj;
1856 struct gl_texture_image *texImg;
1859 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1860 * when attempting to sample incomplete textures.
1862 for (i = 0; i < 16; i++) {
1863 for (j = 0; j < 16; j++) {
1864 pixels[i][j][0] = 0;
1865 pixels[i][j][1] = 0;
1866 pixels[i][j][2] = 0;
1867 pixels[i][j][3] = 255;
1871 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target);
1873 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0);
1875 _mesa_init_teximage_fields(st->ctx, target, texImg,
1876 16, 16, 1, 0, /* w, h, d, border */
1877 GL_RGBA, MESA_FORMAT_RGBA8888);
1879 st_TexImage(st->ctx, 2, target,
1880 0, GL_RGBA, /* level, intformat */
1881 16, 16, 1, 0, /* w, h, d, border */
1882 GL_RGBA, GL_UNSIGNED_BYTE, pixels,
1883 &st->ctx->DefaultPacking,
1887 texObj->Sampler.MinFilter = GL_NEAREST;
1888 texObj->Sampler.MagFilter = GL_NEAREST;
1889 texObj->_Complete = GL_TRUE;
1891 st->default_texture = texObj;
1893 return st->default_texture;
1898 st_init_texture_functions(struct dd_function_table *functions)
1900 functions->ChooseTextureFormat = st_ChooseTextureFormat;
1901 functions->TexImage1D = st_TexImage1D;
1902 functions->TexImage2D = st_TexImage2D;
1903 functions->TexImage3D = st_TexImage3D;
1904 functions->TexSubImage1D = st_TexSubImage1D;
1905 functions->TexSubImage2D = st_TexSubImage2D;
1906 functions->TexSubImage3D = st_TexSubImage3D;
1907 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D;
1908 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D;
1909 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D;
1910 functions->CopyTexSubImage1D = st_CopyTexSubImage1D;
1911 functions->CopyTexSubImage2D = st_CopyTexSubImage2D;
1912 functions->CopyTexSubImage3D = st_CopyTexSubImage3D;
1913 functions->GenerateMipmap = st_generate_mipmap;
1915 functions->GetTexImage = st_GetTexImage;
1917 /* compressed texture functions */
1918 functions->CompressedTexImage2D = st_CompressedTexImage2D;
1919 functions->GetCompressedTexImage = _mesa_get_compressed_teximage;
1921 functions->NewTextureObject = st_NewTextureObject;
1922 functions->NewTextureImage = st_NewTextureImage;
1923 functions->DeleteTextureImage = st_DeleteTextureImage;
1924 functions->DeleteTexture = st_DeleteTextureObject;
1925 functions->AllocTextureImageBuffer = st_AllocTextureImageBuffer;
1926 functions->FreeTextureImageBuffer = st_FreeTextureImageBuffer;
1927 functions->MapTextureImage = st_MapTextureImage;
1928 functions->UnmapTextureImage = st_UnmapTextureImage;
1930 functions->TextureMemCpy = do_memcpy;
1932 /* XXX Temporary until we can query pipe's texture sizes */
1933 functions->TestProxyTexImage = _mesa_test_proxy_teximage;