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"
31 #include "main/convolve.h"
33 #include "main/enums.h"
34 #include "main/fbobject.h"
35 #include "main/formats.h"
36 #include "main/image.h"
37 #include "main/imports.h"
38 #include "main/macros.h"
39 #include "main/mipmap.h"
40 #include "main/texcompress.h"
41 #include "main/texfetch.h"
42 #include "main/texgetimage.h"
43 #include "main/teximage.h"
44 #include "main/texobj.h"
45 #include "main/texstore.h"
47 #include "state_tracker/st_debug.h"
48 #include "state_tracker/st_context.h"
49 #include "state_tracker/st_cb_fbo.h"
50 #include "state_tracker/st_cb_texture.h"
51 #include "state_tracker/st_format.h"
52 #include "state_tracker/st_public.h"
53 #include "state_tracker/st_texture.h"
54 #include "state_tracker/st_gen_mipmap.h"
55 #include "state_tracker/st_inlines.h"
56 #include "state_tracker/st_atom.h"
58 #include "pipe/p_context.h"
59 #include "pipe/p_defines.h"
60 #include "util/u_inlines.h"
61 #include "pipe/p_shader_tokens.h"
62 #include "util/u_tile.h"
63 #include "util/u_blit.h"
64 #include "util/u_format.h"
65 #include "util/u_surface.h"
66 #include "util/u_sampler.h"
67 #include "util/u_math.h"
70 #define DBG if (0) printf
73 static enum pipe_texture_target
74 gl_target_to_pipe(GLenum target)
78 return PIPE_TEXTURE_1D;
81 case GL_TEXTURE_RECTANGLE_NV:
82 return PIPE_TEXTURE_2D;
85 return PIPE_TEXTURE_3D;
87 case GL_TEXTURE_CUBE_MAP_ARB:
88 return PIPE_TEXTURE_CUBE;
97 /** called via ctx->Driver.NewTextureImage() */
98 static struct gl_texture_image *
99 st_NewTextureImage(GLcontext * ctx)
101 DBG("%s\n", __FUNCTION__);
103 return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image);
107 /** called via ctx->Driver.NewTextureObject() */
108 static struct gl_texture_object *
109 st_NewTextureObject(GLcontext * ctx, GLuint name, GLenum target)
111 struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object);
113 DBG("%s\n", __FUNCTION__);
114 _mesa_initialize_texture_object(&obj->base, name, target);
119 /** called via ctx->Driver.DeleteTextureImage() */
121 st_DeleteTextureObject(GLcontext *ctx,
122 struct gl_texture_object *texObj)
124 struct st_texture_object *stObj = st_texture_object(texObj);
126 pipe_texture_reference(&stObj->pt, NULL);
127 if (stObj->sampler_view) {
128 if (stObj->sampler_view->context != ctx->st->pipe) {
129 /* Take "ownership" of this texture sampler view by setting
130 * its context pointer to this context. This avoids potential
131 * crashes when the texture object is shared among contexts
132 * and the original/owner context has already been destroyed.
134 stObj->sampler_view->context = ctx->st->pipe;
136 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
138 _mesa_delete_texture_object(ctx, texObj);
142 /** called via ctx->Driver.FreeTexImageData() */
144 st_FreeTextureImageData(GLcontext * ctx, struct gl_texture_image *texImage)
146 struct st_texture_image *stImage = st_texture_image(texImage);
148 DBG("%s\n", __FUNCTION__);
151 pipe_texture_reference(&stImage->pt, NULL);
154 if (texImage->Data) {
155 _mesa_align_free(texImage->Data);
156 texImage->Data = NULL;
162 * From linux kernel i386 header files, copes with odd sizes better
163 * than COPY_DWORDS would:
164 * XXX Put this in src/mesa/main/imports.h ???
166 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
168 __memcpy(void *to, const void *from, size_t n)
171 __asm__ __volatile__("rep ; movsl\n\t"
175 "1:\ttestb $1,%b4\n\t"
177 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2)
178 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from)
183 #define __memcpy(a,b,c) memcpy(a,b,c)
188 * The system memcpy (at least on ubuntu 5.10) has problems copying
189 * to agp (writecombined) memory from a source which isn't 64-byte
190 * aligned - there is a 4x performance falloff.
192 * The x86 __memcpy is immune to this but is slightly slower
193 * (10%-ish) than the system memcpy.
195 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
196 * isn't much faster than x86_memcpy for agp copies.
198 * TODO: switch dynamically.
201 do_memcpy(void *dest, const void *src, size_t n)
203 if ((((unsigned long) src) & 63) || (((unsigned long) dest) & 63)) {
204 return __memcpy(dest, src, n);
207 return memcpy(dest, src, n);
212 * Return default texture usage bitmask for the given texture format.
215 default_usage(enum pipe_format fmt)
217 GLuint usage = PIPE_TEXTURE_USAGE_SAMPLER;
218 if (util_format_is_depth_or_stencil(fmt))
219 usage |= PIPE_TEXTURE_USAGE_DEPTH_STENCIL;
221 usage |= PIPE_TEXTURE_USAGE_RENDER_TARGET;
227 * Allocate a pipe_texture object for the given st_texture_object using
228 * the given st_texture_image to guess the mipmap size/levels.
231 * Otherwise, store it in memory if (Border != 0) or (any dimension ==
234 * Otherwise, if max_level >= level >= min_level, create texture with
235 * space for images from min_level down to max_level.
237 * Otherwise, create texture with space for images from (level 0)..(1x1).
238 * Consider pruning this texture at a validation if the saving is worth it.
241 guess_and_alloc_texture(struct st_context *st,
242 struct st_texture_object *stObj,
243 const struct st_texture_image *stImage)
247 GLuint width = stImage->base.Width2; /* size w/out border */
248 GLuint height = stImage->base.Height2;
249 GLuint depth = stImage->base.Depth2;
251 enum pipe_format fmt;
253 DBG("%s\n", __FUNCTION__);
258 (GLint) stImage->level > stObj->base.BaseLevel &&
259 (stImage->base.Width == 1 ||
260 (stObj->base.Target != GL_TEXTURE_1D &&
261 stImage->base.Height == 1) ||
262 (stObj->base.Target == GL_TEXTURE_3D &&
263 stImage->base.Depth == 1)))
266 /* If this image disrespects BaseLevel, allocate from level zero.
267 * Usually BaseLevel == 0, so it's unlikely to happen.
269 if ((GLint) stImage->level < stObj->base.BaseLevel)
272 firstLevel = stObj->base.BaseLevel;
275 /* Figure out image dimensions at start level.
277 for (i = stImage->level; i > firstLevel; i--) {
286 if (width == 0 || height == 0 || depth == 0) {
287 /* no texture needed */
291 /* Guess a reasonable value for lastLevel. This is probably going
292 * to be wrong fairly often and might mean that we have to look at
293 * resizable buffers, or require that buffers implement lazy
294 * pagetable arrangements.
296 if ((stObj->base.MinFilter == GL_NEAREST ||
297 stObj->base.MinFilter == GL_LINEAR ||
298 stImage->base._BaseFormat == GL_DEPTH_COMPONENT ||
299 stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) &&
300 !stObj->base.GenerateMipmap &&
301 stImage->level == firstLevel) {
302 /* only alloc space for a single mipmap level */
303 lastLevel = firstLevel;
306 /* alloc space for a full mipmap */
307 GLuint l2width = util_logbase2(width);
308 GLuint l2height = util_logbase2(height);
309 GLuint l2depth = util_logbase2(depth);
310 lastLevel = firstLevel + MAX2(MAX2(l2width, l2height), l2depth);
313 fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat);
315 usage = default_usage(fmt);
317 stObj->pt = st_texture_create(st,
318 gl_target_to_pipe(stObj->base.Target),
326 stObj->pipe = st->pipe;
328 DBG("%s - success\n", __FUNCTION__);
333 * Adjust pixel unpack params and image dimensions to strip off the
335 * Gallium doesn't support texture borders. They've seldem been used
336 * and seldom been implemented correctly anyway.
337 * \param unpackNew returns the new pixel unpack parameters
340 strip_texture_border(GLint border,
341 GLint *width, GLint *height, GLint *depth,
342 const struct gl_pixelstore_attrib *unpack,
343 struct gl_pixelstore_attrib *unpackNew)
345 assert(border > 0); /* sanity check */
347 *unpackNew = *unpack;
349 if (unpackNew->RowLength == 0)
350 unpackNew->RowLength = *width;
352 if (depth && unpackNew->ImageHeight == 0)
353 unpackNew->ImageHeight = *height;
355 unpackNew->SkipPixels += border;
357 unpackNew->SkipRows += border;
359 unpackNew->SkipImages += border;
362 *width = *width - 2 * border;
363 if (height && *height >= 3)
364 *height = *height - 2 * border;
365 if (depth && *depth >= 3)
366 *depth = *depth - 2 * border;
371 * Try to do texture compression via rendering. If the Gallium driver
372 * can render into a compressed surface this will allow us to do texture
374 * \return GL_TRUE for success, GL_FALSE for failure
377 compress_with_blit(GLcontext * ctx,
378 GLenum target, GLint level,
379 GLint xoffset, GLint yoffset, GLint zoffset,
380 GLint width, GLint height, GLint depth,
381 GLenum format, GLenum type, const void *pixels,
382 const struct gl_pixelstore_attrib *unpack,
383 struct gl_texture_image *texImage)
385 const GLuint dstImageOffsets[1] = {0};
386 struct st_texture_image *stImage = st_texture_image(texImage);
387 struct pipe_context *pipe = ctx->st->pipe;
388 struct pipe_screen *screen = pipe->screen;
389 gl_format mesa_format;
390 struct pipe_texture templ;
391 struct pipe_texture *src_tex;
392 struct pipe_sampler_view view_templ;
393 struct pipe_sampler_view *src_view;
394 struct pipe_surface *dst_surface;
395 struct pipe_transfer *tex_xfer;
399 /* XXX: Can this happen? Should we assert? */
403 /* get destination surface (in the compressed texture) */
404 dst_surface = screen->get_tex_surface(screen, stImage->pt,
405 stImage->face, stImage->level, 0,
406 PIPE_BUFFER_USAGE_GPU_WRITE);
408 /* can't render into this format (or other problem) */
412 /* Choose format for the temporary RGBA texture image.
414 mesa_format = st_ChooseTextureFormat(ctx, GL_RGBA, format, type);
419 /* Create the temporary source texture
421 memset(&templ, 0, sizeof(templ));
422 templ.target = PIPE_TEXTURE_2D;
423 templ.format = st_mesa_format_to_pipe_format(mesa_format);
424 templ.width0 = width;
425 templ.height0 = height;
427 templ.last_level = 0;
428 templ.tex_usage = PIPE_TEXTURE_USAGE_SAMPLER;
429 src_tex = screen->texture_create(screen, &templ);
434 /* Put user's tex data into the temporary texture
436 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), src_tex,
437 0, 0, 0, /* face, level are zero */
439 0, 0, width, height); /* x, y, w, h */
440 map = pipe->transfer_map(pipe, tex_xfer);
442 _mesa_texstore(ctx, 2, GL_RGBA, mesa_format,
444 0, 0, 0, /* dest x/y/z offset */
445 tex_xfer->stride, /* dest row stride (bytes) */
446 dstImageOffsets, /* image offsets (for 3D only) */
447 width, height, 1, /* size */
448 format, type, /* source format/type */
449 pixels, /* source data */
450 unpack); /* source data packing */
452 pipe->transfer_unmap(pipe, tex_xfer);
453 pipe->tex_transfer_destroy(pipe, tex_xfer);
455 /* Create temporary sampler view */
456 u_sampler_view_default_template(&view_templ,
459 src_view = pipe->create_sampler_view(pipe, src_tex, &view_templ);
462 /* copy / compress image */
463 util_blit_pixels_tex(ctx->st->blit,
464 src_view, /* sampler view (src) */
465 0, 0, /* src x0, y0 */
466 width, height, /* src x1, y1 */
467 dst_surface, /* pipe_surface (dst) */
468 xoffset, yoffset, /* dst x0, y0 */
469 xoffset + width, /* dst x1 */
470 yoffset + height, /* dst y1 */
472 PIPE_TEX_MIPFILTER_NEAREST);
474 pipe_surface_reference(&dst_surface, NULL);
475 pipe_texture_reference(&src_tex, NULL);
476 pipe_sampler_view_reference(&src_view, NULL);
483 * Do glTexImage1/2/3D().
486 st_TexImage(GLcontext * ctx,
488 GLenum target, GLint level,
489 GLint internalFormat,
490 GLint width, GLint height, GLint depth,
492 GLenum format, GLenum type, const void *pixels,
493 const struct gl_pixelstore_attrib *unpack,
494 struct gl_texture_object *texObj,
495 struct gl_texture_image *texImage,
496 GLsizei imageSize, GLboolean compressed_src)
498 struct pipe_screen *screen = ctx->st->pipe->screen;
499 struct st_texture_object *stObj = st_texture_object(texObj);
500 struct st_texture_image *stImage = st_texture_image(texImage);
501 GLint postConvWidth, postConvHeight;
502 GLint texelBytes, sizeInBytes;
503 GLuint dstRowStride = 0;
504 struct gl_pixelstore_attrib unpackNB;
505 enum pipe_transfer_usage transfer_usage = 0;
507 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__,
508 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border);
510 /* switch to "normal" */
511 if (stObj->surface_based) {
512 _mesa_clear_texture_object(ctx, texObj);
513 stObj->surface_based = GL_FALSE;
516 /* gallium does not support texture borders, strip it off */
518 strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB);
520 texImage->Width = width;
521 texImage->Height = height;
522 texImage->Depth = depth;
523 texImage->Border = 0;
527 postConvWidth = width;
528 postConvHeight = height;
530 stImage->face = _mesa_tex_target_to_face(target);
531 stImage->level = level;
534 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) {
535 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth,
540 _mesa_set_fetch_functions(texImage, dims);
542 if (_mesa_is_format_compressed(texImage->TexFormat)) {
543 /* must be a compressed format */
547 texelBytes = _mesa_get_format_bytes(texImage->TexFormat);
549 /* Minimum pitch of 32 bytes */
550 if (postConvWidth * texelBytes < 32) {
551 postConvWidth = 32 / texelBytes;
552 texImage->RowStride = postConvWidth;
555 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
556 /*assert(texImage->RowStride == postConvWidth);*/
559 /* Release the reference to a potentially orphaned buffer.
560 * Release any old malloced memory.
563 pipe_texture_reference(&stImage->pt, NULL);
564 assert(!texImage->Data);
566 else if (texImage->Data) {
567 _mesa_align_free(texImage->Data);
571 * See if the new image is somehow incompatible with the existing
572 * mipmap. If so, free the old mipmap.
575 if (stObj->teximage_realloc ||
576 level > (GLint) stObj->pt->last_level ||
577 !st_texture_match_image(stObj->pt, &stImage->base,
578 stImage->face, stImage->level)) {
580 pipe_texture_reference(&stObj->pt, NULL);
582 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
583 stObj->teximage_realloc = FALSE;
587 if (width == 0 || height == 0 || depth == 0) {
588 /* stop after freeing old image */
593 guess_and_alloc_texture(ctx->st, stObj, stImage);
595 /* Probably out of memory.
596 * Try flushing any pending rendering, then retry.
599 guess_and_alloc_texture(ctx->st, stObj, stImage);
601 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
607 assert(!stImage->pt);
610 st_texture_match_image(stObj->pt, &stImage->base,
611 stImage->face, stImage->level)) {
613 pipe_texture_reference(&stImage->pt, stObj->pt);
618 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
620 /* st_CopyTexImage calls this function with pixels == NULL, with
621 * the expectation that the texture will be set up but nothing
622 * more will be done. This is where those calls return:
624 if (compressed_src) {
625 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
627 "glCompressedTexImage");
630 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
632 pixels, unpack, "glTexImage");
635 /* Note: we can't check for pixels==NULL until after we've allocated
636 * memory for the texture.
639 /* See if we can do texture compression with a blit/render.
641 if (!compressed_src &&
643 _mesa_is_format_compressed(texImage->TexFormat) &&
644 screen->is_format_supported(screen,
647 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
651 if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth,
652 format, type, pixels, unpack, texImage)) {
658 if (format == GL_DEPTH_COMPONENT &&
659 util_format_is_depth_and_stencil(stImage->pt->format))
660 transfer_usage = PIPE_TRANSFER_READ_WRITE;
662 transfer_usage = PIPE_TRANSFER_WRITE;
664 texImage->Data = st_texture_image_map(ctx->st, stImage, 0,
665 transfer_usage, 0, 0,
667 stImage->base.Height);
668 if(stImage->transfer)
669 dstRowStride = stImage->transfer->stride;
672 /* Allocate regular memory and store the image there temporarily. */
673 if (_mesa_is_format_compressed(texImage->TexFormat)) {
674 sizeInBytes = _mesa_format_image_size(texImage->TexFormat,
678 dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width);
682 dstRowStride = postConvWidth * texelBytes;
683 sizeInBytes = depth * dstRowStride * postConvHeight;
686 texImage->Data = _mesa_align_malloc(sizeInBytes, 16);
689 if (!texImage->Data) {
690 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
697 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
698 width, height, depth, width * texelBytes, dstRowStride);
700 /* Copy data. Would like to know when it's ok for us to eg. use
701 * the blitter to copy. Or, use the hardware to do the format
702 * conversion and copy:
704 if (compressed_src) {
705 const GLuint srcImageStride = _mesa_format_row_stride(texImage->TexFormat, width);
706 if(dstRowStride == srcImageStride)
707 memcpy(texImage->Data, pixels, imageSize);
710 char *dst = texImage->Data;
711 const char *src = pixels;
712 GLuint i, bw, bh, lines;
713 _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
714 lines = (height + bh - 1) / bh;
716 for(i = 0; i < lines; ++i)
718 memcpy(dst, src, srcImageStride);
720 src += srcImageStride;
725 const GLuint srcImageStride =
726 _mesa_image_image_stride(unpack, width, height, format, type);
728 const GLubyte *src = (const GLubyte *) pixels;
730 for (i = 0; i < depth; i++) {
731 if (!_mesa_texstore(ctx, dims,
732 texImage->_BaseFormat,
735 0, 0, 0, /* dstX/Y/Zoffset */
737 texImage->ImageOffsets,
739 format, type, src, unpack)) {
740 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
743 if (stImage->pt && i + 1 < depth) {
744 /* unmap this slice */
745 st_texture_image_unmap(ctx->st, stImage);
746 /* map next slice of 3D texture */
747 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1,
748 transfer_usage, 0, 0,
750 stImage->base.Height);
751 src += srcImageStride;
757 _mesa_unmap_teximage_pbo(ctx, unpack);
759 if (stImage->pt && texImage->Data) {
760 st_texture_image_unmap(ctx->st, stImage);
761 texImage->Data = NULL;
767 st_TexImage3D(GLcontext * ctx,
768 GLenum target, GLint level,
769 GLint internalFormat,
770 GLint width, GLint height, GLint depth,
772 GLenum format, GLenum type, const void *pixels,
773 const struct gl_pixelstore_attrib *unpack,
774 struct gl_texture_object *texObj,
775 struct gl_texture_image *texImage)
777 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth,
778 border, format, type, pixels, unpack, texObj, texImage,
784 st_TexImage2D(GLcontext * ctx,
785 GLenum target, GLint level,
786 GLint internalFormat,
787 GLint width, GLint height, GLint border,
788 GLenum format, GLenum type, const void *pixels,
789 const struct gl_pixelstore_attrib *unpack,
790 struct gl_texture_object *texObj,
791 struct gl_texture_image *texImage)
793 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border,
794 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
799 st_TexImage1D(GLcontext * ctx,
800 GLenum target, GLint level,
801 GLint internalFormat,
802 GLint width, GLint border,
803 GLenum format, GLenum type, const void *pixels,
804 const struct gl_pixelstore_attrib *unpack,
805 struct gl_texture_object *texObj,
806 struct gl_texture_image *texImage)
808 st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border,
809 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
814 st_CompressedTexImage2D(GLcontext *ctx, GLenum target, GLint level,
815 GLint internalFormat,
816 GLint width, GLint height, GLint border,
817 GLsizei imageSize, const GLvoid *data,
818 struct gl_texture_object *texObj,
819 struct gl_texture_image *texImage)
821 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border,
822 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE);
828 * glGetTexImage() helper: decompress a compressed texture by rendering
829 * a textured quad. Store the results in the user's buffer.
832 decompress_with_blit(GLcontext * ctx, GLenum target, GLint level,
833 GLenum format, GLenum type, GLvoid *pixels,
834 struct gl_texture_object *texObj,
835 struct gl_texture_image *texImage)
837 struct pipe_context *pipe = ctx->st->pipe;
838 struct pipe_screen *screen = pipe->screen;
839 struct st_texture_image *stImage = st_texture_image(texImage);
840 struct st_texture_object *stObj = st_texture_object(texObj);
841 struct pipe_sampler_view *src_view = st_get_stobj_sampler_view(stObj);
842 const GLuint width = texImage->Width;
843 const GLuint height = texImage->Height;
844 struct pipe_surface *dst_surface;
845 struct pipe_texture *dst_texture;
846 struct pipe_transfer *tex_xfer;
848 /* create temp / dest surface */
849 if (!util_create_rgba_surface(screen, width, height,
850 &dst_texture, &dst_surface)) {
851 _mesa_problem(ctx, "util_create_rgba_surface() failed "
852 "in decompress_with_blit()");
856 /* blit/render/decompress */
857 util_blit_pixels_tex(ctx->st->blit,
858 src_view, /* pipe_texture (src) */
859 0, 0, /* src x0, y0 */
860 width, height, /* src x1, y1 */
861 dst_surface, /* pipe_surface (dst) */
862 0, 0, /* dst x0, y0 */
863 width, height, /* dst x1, y1 */
865 PIPE_TEX_MIPFILTER_NEAREST);
867 /* map the dst_surface so we can read from it */
868 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx),
869 dst_texture, 0, 0, 0,
871 0, 0, width, height);
873 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels);
875 /* copy/pack data into user buffer */
876 if (st_equal_formats(stImage->pt->format, format, type)) {
878 const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format);
879 ubyte *map = pipe->transfer_map(pipe, tex_xfer);
881 for (row = 0; row < height; row++) {
882 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
883 height, format, type, row, 0);
884 memcpy(dest, map, bytesPerRow);
885 map += tex_xfer->stride;
887 pipe->transfer_unmap(pipe, tex_xfer);
890 /* format translation via floats */
892 for (row = 0; row < height; row++) {
893 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */
894 GLfloat rgba[4 * MAX_WIDTH];
895 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
896 height, format, type, row, 0);
898 if (ST_DEBUG & DEBUG_FALLBACK)
899 debug_printf("%s: fallback format translation\n", __FUNCTION__);
901 /* get float[4] rgba row from surface */
902 pipe_get_tile_rgba(pipe, tex_xfer, 0, row, width, 1, rgba);
904 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format,
905 type, dest, &ctx->Pack, transferOps);
909 _mesa_unmap_pbo_dest(ctx, &ctx->Pack);
911 pipe->tex_transfer_destroy(pipe, tex_xfer);
913 /* destroy the temp / dest surface */
914 util_destroy_rgba_surface(dst_texture, dst_surface);
920 * Need to map texture image into memory before copying image data,
924 st_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
925 GLenum format, GLenum type, GLvoid * pixels,
926 struct gl_texture_object *texObj,
927 struct gl_texture_image *texImage, GLboolean compressed_dst)
929 struct st_texture_image *stImage = st_texture_image(texImage);
930 const GLuint dstImageStride =
931 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height,
937 util_format_is_s3tc(stImage->pt->format) &&
939 /* Need to decompress the texture.
940 * We'll do this by rendering a textured quad.
941 * Note that we only expect RGBA formats (no Z/depth formats).
943 decompress_with_blit(ctx, target, level, format, type, pixels,
950 /* Image is stored in hardware format in a buffer managed by the
951 * kernel. Need to explicitly map and unmap it.
953 unsigned face = _mesa_tex_target_to_face(target);
955 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level,
958 texImage->Data = st_texture_image_map(ctx->st, stImage, 0,
959 PIPE_TRANSFER_READ, 0, 0,
961 stImage->base.Height);
962 texImage->RowStride = stImage->transfer->stride / util_format_get_blocksize(stImage->pt->format);
965 /* Otherwise, the image should actually be stored in
966 * texImage->Data. This is pretty confusing for
967 * everybody, I'd much prefer to separate the two functions of
968 * texImage->Data - storage for texture images in main memory
969 * and access (ie mappings) of images. In other words, we'd
970 * create a new texImage->Map field and leave Data simply for
973 assert(texImage->Data);
976 depth = texImage->Depth;
979 dest = (GLubyte *) pixels;
981 for (i = 0; i < depth; i++) {
982 if (compressed_dst) {
983 _mesa_get_compressed_teximage(ctx, target, level, dest,
987 _mesa_get_teximage(ctx, target, level, format, type, dest,
991 if (stImage->pt && i + 1 < depth) {
992 /* unmap this slice */
993 st_texture_image_unmap(ctx->st, stImage);
994 /* map next slice of 3D texture */
995 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1,
996 PIPE_TRANSFER_READ, 0, 0,
998 stImage->base.Height);
999 dest += dstImageStride;
1003 texImage->Depth = depth;
1007 st_texture_image_unmap(ctx->st, stImage);
1008 texImage->Data = NULL;
1014 st_GetTexImage(GLcontext * ctx, GLenum target, GLint level,
1015 GLenum format, GLenum type, GLvoid * pixels,
1016 struct gl_texture_object *texObj,
1017 struct gl_texture_image *texImage)
1019 st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage,
1025 st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level,
1027 struct gl_texture_object *texObj,
1028 struct gl_texture_image *texImage)
1030 st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage,
1037 st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level,
1038 GLint xoffset, GLint yoffset, GLint zoffset,
1039 GLint width, GLint height, GLint depth,
1040 GLenum format, GLenum type, const void *pixels,
1041 const struct gl_pixelstore_attrib *packing,
1042 struct gl_texture_object *texObj,
1043 struct gl_texture_image *texImage)
1045 struct pipe_screen *screen = ctx->st->pipe->screen;
1046 struct st_texture_image *stImage = st_texture_image(texImage);
1047 GLuint dstRowStride;
1048 const GLuint srcImageStride =
1049 _mesa_image_image_stride(packing, width, height, format, type);
1052 /* init to silence warning only: */
1053 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE;
1055 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__,
1056 _mesa_lookup_enum_by_nr(target),
1057 level, xoffset, yoffset, width, height);
1060 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format,
1061 type, pixels, packing, "glTexSubImage2D");
1065 /* See if we can do texture compression with a blit/render.
1067 if (!ctx->Mesa_DXTn &&
1068 _mesa_is_format_compressed(texImage->TexFormat) &&
1069 screen->is_format_supported(screen,
1070 stImage->pt->format,
1071 stImage->pt->target,
1072 PIPE_TEXTURE_USAGE_RENDER_TARGET, 0)) {
1073 if (compress_with_blit(ctx, target, level,
1074 xoffset, yoffset, zoffset,
1075 width, height, depth,
1076 format, type, pixels, packing, texImage)) {
1081 /* Map buffer if necessary. Need to lock to prevent other contexts
1082 * from uploading the buffer under us.
1085 unsigned face = _mesa_tex_target_to_face(target);
1087 if (format == GL_DEPTH_COMPONENT &&
1088 util_format_is_depth_and_stencil(stImage->pt->format))
1089 transfer_usage = PIPE_TRANSFER_READ_WRITE;
1091 transfer_usage = PIPE_TRANSFER_WRITE;
1093 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level,
1095 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset,
1101 if (!texImage->Data) {
1102 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
1106 src = (const GLubyte *) pixels;
1107 dstRowStride = stImage->transfer->stride;
1109 for (i = 0; i < depth; i++) {
1110 if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat,
1111 texImage->TexFormat,
1115 texImage->ImageOffsets,
1117 format, type, src, packing)) {
1118 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
1121 if (stImage->pt && i + 1 < depth) {
1122 /* unmap this slice */
1123 st_texture_image_unmap(ctx->st, stImage);
1124 /* map next slice of 3D texture */
1125 texImage->Data = st_texture_image_map(ctx->st, stImage,
1130 src += srcImageStride;
1135 _mesa_unmap_teximage_pbo(ctx, packing);
1137 if (stImage->pt && texImage->Data) {
1138 st_texture_image_unmap(ctx->st, stImage);
1139 texImage->Data = NULL;
1146 st_TexSubImage3D(GLcontext *ctx, GLenum target, GLint level,
1147 GLint xoffset, GLint yoffset, GLint zoffset,
1148 GLsizei width, GLsizei height, GLsizei depth,
1149 GLenum format, GLenum type, const GLvoid *pixels,
1150 const struct gl_pixelstore_attrib *packing,
1151 struct gl_texture_object *texObj,
1152 struct gl_texture_image *texImage)
1154 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
1155 width, height, depth, format, type,
1156 pixels, packing, texObj, texImage);
1161 st_TexSubImage2D(GLcontext *ctx, GLenum target, GLint level,
1162 GLint xoffset, GLint yoffset,
1163 GLsizei width, GLsizei height,
1164 GLenum format, GLenum type, const GLvoid * pixels,
1165 const struct gl_pixelstore_attrib *packing,
1166 struct gl_texture_object *texObj,
1167 struct gl_texture_image *texImage)
1169 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0,
1170 width, height, 1, format, type,
1171 pixels, packing, texObj, texImage);
1176 st_TexSubImage1D(GLcontext *ctx, GLenum target, GLint level,
1177 GLint xoffset, GLsizei width, GLenum format, GLenum type,
1178 const GLvoid * pixels,
1179 const struct gl_pixelstore_attrib *packing,
1180 struct gl_texture_object *texObj,
1181 struct gl_texture_image *texImage)
1183 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1,
1184 format, type, pixels, packing, texObj, texImage);
1189 st_CompressedTexSubImage1D(GLcontext *ctx, GLenum target, GLint level,
1190 GLint xoffset, GLsizei width,
1192 GLsizei imageSize, const GLvoid *data,
1193 struct gl_texture_object *texObj,
1194 struct gl_texture_image *texImage)
1201 st_CompressedTexSubImage2D(GLcontext *ctx, GLenum target, GLint level,
1202 GLint xoffset, GLint yoffset,
1203 GLsizei width, GLint height,
1205 GLsizei imageSize, const GLvoid *data,
1206 struct gl_texture_object *texObj,
1207 struct gl_texture_image *texImage)
1209 struct st_texture_image *stImage = st_texture_image(texImage);
1213 enum pipe_format pformat= stImage->pt->format;
1216 unsigned face = _mesa_tex_target_to_face(target);
1218 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level,
1219 PIPE_TRANSFER_WRITE);
1220 texImage->Data = st_texture_image_map(ctx->st, stImage, 0,
1221 PIPE_TRANSFER_WRITE,
1225 srcBlockStride = util_format_get_stride(pformat, width);
1226 dstBlockStride = stImage->transfer->stride;
1228 assert(stImage->pt);
1229 /* TODO find good values for block and strides */
1230 /* TODO also adjust texImage->data for yoffset/xoffset */
1234 if (!texImage->Data) {
1235 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage");
1239 assert(xoffset % util_format_get_blockwidth(pformat) == 0);
1240 assert(yoffset % util_format_get_blockheight(pformat) == 0);
1241 assert(width % util_format_get_blockwidth(pformat) == 0);
1242 assert(height % util_format_get_blockheight(pformat) == 0);
1244 for (y = 0; y < height; y += util_format_get_blockheight(pformat)) {
1245 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1246 const char *src = (const char*)data + srcBlockStride * util_format_get_nblocksy(pformat, y);
1247 char *dst = (char*)texImage->Data + dstBlockStride * util_format_get_nblocksy(pformat, y);
1248 memcpy(dst, src, util_format_get_stride(pformat, width));
1252 st_texture_image_unmap(ctx->st, stImage);
1253 texImage->Data = NULL;
1259 st_CompressedTexSubImage3D(GLcontext *ctx, GLenum target, GLint level,
1260 GLint xoffset, GLint yoffset, GLint zoffset,
1261 GLsizei width, GLint height, GLint depth,
1263 GLsizei imageSize, const GLvoid *data,
1264 struct gl_texture_object *texObj,
1265 struct gl_texture_image *texImage)
1273 * Do a CopyTexSubImage operation using a read transfer from the source,
1274 * a write transfer to the destination and get_tile()/put_tile() to access
1275 * the pixels/texels.
1277 * Note: srcY=0=TOP of renderbuffer
1280 fallback_copy_texsubimage(GLcontext *ctx, GLenum target, GLint level,
1281 struct st_renderbuffer *strb,
1282 struct st_texture_image *stImage,
1284 GLint destX, GLint destY, GLint destZ,
1285 GLint srcX, GLint srcY,
1286 GLsizei width, GLsizei height)
1288 struct pipe_context *pipe = ctx->st->pipe;
1289 struct pipe_transfer *src_trans;
1291 enum pipe_transfer_usage transfer_usage;
1293 if (ST_DEBUG & DEBUG_FALLBACK)
1294 debug_printf("%s: fallback processing\n", __FUNCTION__);
1296 assert(width <= MAX_WIDTH);
1298 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1299 srcY = strb->Base.Height - srcY - height;
1302 src_trans = st_cond_flush_get_tex_transfer( st_context(ctx),
1309 if ((baseFormat == GL_DEPTH_COMPONENT ||
1310 baseFormat == GL_DEPTH_STENCIL) &&
1311 util_format_is_depth_and_stencil(stImage->pt->format))
1312 transfer_usage = PIPE_TRANSFER_READ_WRITE;
1314 transfer_usage = PIPE_TRANSFER_WRITE;
1316 st_teximage_flush_before_map(ctx->st, stImage->pt, 0, 0,
1319 texDest = st_texture_image_map(ctx->st, stImage, 0, transfer_usage,
1320 destX, destY, width, height);
1322 if (baseFormat == GL_DEPTH_COMPONENT ||
1323 baseFormat == GL_DEPTH_STENCIL) {
1324 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F ||
1325 ctx->Pixel.DepthBias != 0.0F);
1328 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1329 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1338 /* To avoid a large temp memory allocation, do copy row by row */
1339 for (row = 0; row < height; row++, srcY += yStep) {
1340 uint data[MAX_WIDTH];
1341 pipe_get_tile_z(pipe, src_trans, 0, srcY, width, 1, data);
1343 _mesa_scale_and_bias_depth_uint(ctx, width, data);
1345 pipe_put_tile_z(pipe, stImage->transfer, 0, row, width, 1, data);
1351 (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
1353 if (tempSrc && texDest) {
1354 const GLint dims = 2;
1355 const GLint dstRowStride = stImage->transfer->stride;
1356 struct gl_texture_image *texImage = &stImage->base;
1357 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking;
1359 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1360 unpack.Invert = GL_TRUE;
1363 /* get float/RGBA image from framebuffer */
1364 /* XXX this usually involves a lot of int/float conversion.
1365 * try to avoid that someday.
1367 pipe_get_tile_rgba(pipe, src_trans, 0, 0, width, height, tempSrc);
1369 /* Store into texture memory.
1370 * Note that this does some special things such as pixel transfer
1371 * ops and format conversion. In particular, if the dest tex format
1372 * is actually RGBA but the user created the texture as GL_RGB we
1373 * need to fill-in/override the alpha channel with 1.0.
1375 _mesa_texstore(ctx, dims,
1376 texImage->_BaseFormat,
1377 texImage->TexFormat,
1381 texImage->ImageOffsets,
1383 GL_RGBA, GL_FLOAT, tempSrc, /* src */
1387 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
1394 st_texture_image_unmap(ctx->st, stImage);
1395 pipe->tex_transfer_destroy(pipe, src_trans);
1401 * If the format of the src renderbuffer and the format of the dest
1402 * texture are compatible (in terms of blitting), return a TGSI writemask
1403 * to be used during the blit.
1404 * If the src/dest are incompatible, return 0.
1407 compatible_src_dst_formats(GLcontext *ctx,
1408 const struct gl_renderbuffer *src,
1409 const struct gl_texture_image *dst)
1411 /* Get logical base formats for the src and dest.
1412 * That is, use the user-requested formats and not the actual, device-
1414 * For example, the user may have requested an A8 texture but the
1415 * driver may actually be using an RGBA texture format. When we
1416 * copy/blit to that texture, we only want to copy the Alpha channel
1417 * and not the RGB channels.
1419 * Similarly, when the src FBO was created an RGB format may have been
1420 * requested but the driver actually chose an RGBA format. In that case,
1421 * we don't want to copy the undefined Alpha channel to the dest texture
1422 * (it should be 1.0).
1424 const GLenum srcFormat = _mesa_base_fbo_format(ctx, src->InternalFormat);
1425 const GLenum dstFormat = _mesa_base_tex_format(ctx, dst->InternalFormat);
1428 * XXX when we have red-only and red/green renderbuffers we'll need
1429 * to add more cases here (or implement a general-purpose routine that
1430 * queries the existance of the R,G,B,A channels in the src and dest).
1432 if (srcFormat == dstFormat) {
1433 /* This is the same as matching_base_formats, which should
1434 * always pass, as it did previously.
1436 return TGSI_WRITEMASK_XYZW;
1438 else if (srcFormat == GL_RGB && dstFormat == GL_RGBA) {
1439 /* Make sure that A in the dest is 1. The actual src format
1440 * may be RGBA and have undefined A values.
1442 return TGSI_WRITEMASK_XYZ;
1444 else if (srcFormat == GL_RGBA && dstFormat == GL_RGB) {
1445 /* Make sure that A in the dest is 1. The actual dst format
1446 * may be RGBA and will need A=1 to provide proper alpha values
1447 * when sampled later.
1449 return TGSI_WRITEMASK_XYZ;
1452 if (ST_DEBUG & DEBUG_FALLBACK)
1453 debug_printf("%s failed for src %s, dst %s\n",
1455 _mesa_lookup_enum_by_nr(srcFormat),
1456 _mesa_lookup_enum_by_nr(dstFormat));
1467 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1468 * Note that the region to copy has already been clipped so we know we
1469 * won't read from outside the source renderbuffer's bounds.
1471 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1474 st_copy_texsubimage(GLcontext *ctx,
1475 GLenum target, GLint level,
1476 GLint destX, GLint destY, GLint destZ,
1477 GLint srcX, GLint srcY,
1478 GLsizei width, GLsizei height)
1480 struct gl_texture_unit *texUnit =
1481 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1482 struct gl_texture_object *texObj =
1483 _mesa_select_tex_object(ctx, texUnit, target);
1484 struct gl_texture_image *texImage =
1485 _mesa_select_tex_image(ctx, texObj, target, level);
1486 struct st_texture_image *stImage = st_texture_image(texImage);
1487 const GLenum texBaseFormat = texImage->_BaseFormat;
1488 struct gl_framebuffer *fb = ctx->ReadBuffer;
1489 struct st_renderbuffer *strb;
1490 struct pipe_context *pipe = ctx->st->pipe;
1491 struct pipe_screen *screen = pipe->screen;
1492 enum pipe_format dest_format, src_format;
1493 GLboolean use_fallback = GL_TRUE;
1494 GLboolean matching_base_formats;
1495 GLuint format_writemask;
1496 struct pipe_surface *dest_surface = NULL;
1497 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP);
1499 /* any rendering in progress must flushed before we grab the fb image */
1500 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL);
1502 /* make sure finalize_textures has been called?
1504 if (0) st_validate_state(ctx->st);
1506 /* determine if copying depth or color data */
1507 if (texBaseFormat == GL_DEPTH_COMPONENT ||
1508 texBaseFormat == GL_DEPTH_STENCIL) {
1509 strb = st_renderbuffer(fb->_DepthBuffer);
1512 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1513 strb = st_renderbuffer(fb->_ColorReadBuffer);
1516 if (!strb || !strb->surface || !stImage->pt) {
1517 debug_printf("%s: null strb or stImage\n", __FUNCTION__);
1545 if (width < 0 || height < 0)
1550 assert(strb->surface);
1551 assert(stImage->pt);
1553 src_format = strb->surface->format;
1554 dest_format = stImage->pt->format;
1557 * Determine if the src framebuffer and dest texture have the same
1558 * base format. We need this to detect a case such as the framebuffer
1559 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1560 * texture format stores RGBA we need to set A=1 (overriding the
1561 * framebuffer's alpha values). We can't do that with the blit or
1562 * textured-quad paths.
1564 matching_base_formats =
1565 (_mesa_get_format_base_format(strb->Base.Format) ==
1566 _mesa_get_format_base_format(texImage->TexFormat));
1567 format_writemask = compatible_src_dst_formats(ctx, &strb->Base, texImage);
1569 if (ctx->_ImageTransferState == 0x0) {
1571 if (matching_base_formats &&
1572 src_format == dest_format &&
1575 /* use surface_copy() / blit */
1577 dest_surface = screen->get_tex_surface(screen, stImage->pt,
1578 stImage->face, stImage->level,
1580 PIPE_BUFFER_USAGE_GPU_WRITE);
1582 /* for surface_copy(), y=0=top, always */
1583 pipe->surface_copy(pipe,
1592 use_fallback = GL_FALSE;
1594 else if (format_writemask &&
1595 texBaseFormat != GL_DEPTH_COMPONENT &&
1596 texBaseFormat != GL_DEPTH_STENCIL &&
1597 screen->is_format_supported(screen, src_format,
1599 PIPE_TEXTURE_USAGE_SAMPLER,
1601 screen->is_format_supported(screen, dest_format,
1603 PIPE_TEXTURE_USAGE_RENDER_TARGET,
1605 /* draw textured quad to do the copy */
1608 dest_surface = screen->get_tex_surface(screen, stImage->pt,
1609 stImage->face, stImage->level,
1611 PIPE_BUFFER_USAGE_GPU_WRITE);
1614 srcY1 = strb->Base.Height - srcY - height;
1615 srcY0 = srcY1 + height;
1619 srcY1 = srcY0 + height;
1621 util_blit_pixels_writemask(ctx->st->blit,
1623 st_renderbuffer_get_sampler_view(strb, pipe),
1625 srcX + width, srcY1,
1628 destX + width, destY + height,
1629 0.0, PIPE_TEX_MIPFILTER_NEAREST,
1631 use_fallback = GL_FALSE;
1635 pipe_surface_reference(&dest_surface, NULL);
1639 /* software fallback */
1640 fallback_copy_texsubimage(ctx, target, level,
1641 strb, stImage, texBaseFormat,
1642 destX, destY, destZ,
1643 srcX, srcY, width, height);
1650 st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level,
1651 GLenum internalFormat,
1652 GLint x, GLint y, GLsizei width, GLint border)
1654 struct gl_texture_unit *texUnit =
1655 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1656 struct gl_texture_object *texObj =
1657 _mesa_select_tex_object(ctx, texUnit, target);
1658 struct gl_texture_image *texImage =
1659 _mesa_select_tex_image(ctx, texObj, target, level);
1661 /* Setup or redefine the texture object, texture and texture
1662 * image. Don't populate yet.
1664 ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
1666 GL_RGBA, CHAN_TYPE, NULL,
1667 &ctx->DefaultPacking, texObj, texImage);
1669 st_copy_texsubimage(ctx, target, level,
1670 0, 0, 0, /* destX,Y,Z */
1671 x, y, width, 1); /* src X, Y, size */
1676 st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level,
1677 GLenum internalFormat,
1678 GLint x, GLint y, GLsizei width, GLsizei height,
1681 struct gl_texture_unit *texUnit =
1682 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1683 struct gl_texture_object *texObj =
1684 _mesa_select_tex_object(ctx, texUnit, target);
1685 struct gl_texture_image *texImage =
1686 _mesa_select_tex_image(ctx, texObj, target, level);
1688 /* Setup or redefine the texture object, texture and texture
1689 * image. Don't populate yet.
1691 ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
1692 width, height, border,
1693 GL_RGBA, CHAN_TYPE, NULL,
1694 &ctx->DefaultPacking, texObj, texImage);
1696 st_copy_texsubimage(ctx, target, level,
1697 0, 0, 0, /* destX,Y,Z */
1698 x, y, width, height); /* src X, Y, size */
1703 st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level,
1704 GLint xoffset, GLint x, GLint y, GLsizei width)
1706 const GLint yoffset = 0, zoffset = 0;
1707 const GLsizei height = 1;
1708 st_copy_texsubimage(ctx, target, level,
1709 xoffset, yoffset, zoffset, /* destX,Y,Z */
1710 x, y, width, height); /* src X, Y, size */
1715 st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
1716 GLint xoffset, GLint yoffset,
1717 GLint x, GLint y, GLsizei width, GLsizei height)
1719 const GLint zoffset = 0;
1720 st_copy_texsubimage(ctx, target, level,
1721 xoffset, yoffset, zoffset, /* destX,Y,Z */
1722 x, y, width, height); /* src X, Y, size */
1727 st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level,
1728 GLint xoffset, GLint yoffset, GLint zoffset,
1729 GLint x, GLint y, GLsizei width, GLsizei height)
1731 st_copy_texsubimage(ctx, target, level,
1732 xoffset, yoffset, zoffset, /* destX,Y,Z */
1733 x, y, width, height); /* src X, Y, size */
1738 copy_image_data_to_texture(struct st_context *st,
1739 struct st_texture_object *stObj,
1741 struct st_texture_image *stImage)
1744 /* Copy potentially with the blitter:
1746 st_texture_image_copy(st->pipe,
1747 stObj->pt, dstLevel, /* dest texture, level */
1748 stImage->pt, /* src texture */
1751 pipe_texture_reference(&stImage->pt, NULL);
1753 else if (stImage->base.Data) {
1754 /* More straightforward upload.
1756 st_teximage_flush_before_map(st, stObj->pt, stImage->face, dstLevel,
1757 PIPE_TRANSFER_WRITE);
1759 st_texture_image_data(st,
1764 stImage->base.RowStride *
1765 util_format_get_blocksize(stObj->pt->format),
1766 stImage->base.RowStride *
1767 stImage->base.Height *
1768 util_format_get_blocksize(stObj->pt->format));
1769 _mesa_align_free(stImage->base.Data);
1770 stImage->base.Data = NULL;
1773 pipe_texture_reference(&stImage->pt, stObj->pt);
1778 * Called during state validation. When this function is finished,
1779 * the texture object should be ready for rendering.
1780 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1783 st_finalize_texture(GLcontext *ctx,
1784 struct pipe_context *pipe,
1785 struct gl_texture_object *tObj,
1786 GLboolean *needFlush)
1788 struct st_texture_object *stObj = st_texture_object(tObj);
1789 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
1790 GLuint blockSize, face;
1791 struct st_texture_image *firstImage;
1793 *needFlush = GL_FALSE;
1795 if (stObj->base._Complete) {
1796 /* The texture is complete and we know exactly how many mipmap levels
1797 * are present/needed. This is conditional because we may be called
1798 * from the st_generate_mipmap() function when the texture object is
1799 * incomplete. In that case, we'll have set stObj->lastLevel before
1802 if (stObj->base.MinFilter == GL_LINEAR ||
1803 stObj->base.MinFilter == GL_NEAREST)
1804 stObj->lastLevel = stObj->base.BaseLevel;
1806 stObj->lastLevel = stObj->base._MaxLevel - stObj->base.BaseLevel;
1809 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]);
1811 /* If both firstImage and stObj point to a texture which can contain
1812 * all active images, favour firstImage. Note that because of the
1813 * completeness requirement, we know that the image dimensions
1816 if (firstImage->pt &&
1817 firstImage->pt != stObj->pt &&
1818 firstImage->pt->last_level >= stObj->lastLevel) {
1819 pipe_texture_reference(&stObj->pt, firstImage->pt);
1820 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
1823 /* bytes per pixel block (blocks are usually 1x1) */
1824 blockSize = _mesa_get_format_bytes(firstImage->base.TexFormat);
1826 /* If we already have a gallium texture, check that it matches the texture
1827 * object's format, target, size, num_levels, etc.
1830 const enum pipe_format fmt =
1831 st_mesa_format_to_pipe_format(firstImage->base.TexFormat);
1832 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) ||
1833 stObj->pt->format != fmt ||
1834 stObj->pt->last_level < stObj->lastLevel ||
1835 stObj->pt->width0 != firstImage->base.Width2 ||
1836 stObj->pt->height0 != firstImage->base.Height2 ||
1837 stObj->pt->depth0 != firstImage->base.Depth2)
1839 pipe_texture_reference(&stObj->pt, NULL);
1840 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
1841 ctx->st->dirty.st |= ST_NEW_FRAMEBUFFER;
1845 /* May need to create a new gallium texture:
1848 const enum pipe_format fmt =
1849 st_mesa_format_to_pipe_format(firstImage->base.TexFormat);
1850 GLuint usage = default_usage(fmt);
1852 stObj->pt = st_texture_create(ctx->st,
1853 gl_target_to_pipe(stObj->base.Target),
1856 firstImage->base.Width2,
1857 firstImage->base.Height2,
1858 firstImage->base.Depth2,
1862 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
1867 /* Pull in any images not in the object's texture:
1869 for (face = 0; face < nr_faces; face++) {
1871 for (level = 0; level <= stObj->lastLevel; level++) {
1872 struct st_texture_image *stImage =
1873 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]);
1875 /* Need to import images in main memory or held in other textures.
1877 if (stImage && stObj->pt != stImage->pt) {
1878 copy_image_data_to_texture(ctx->st, stObj, level, stImage);
1879 *needFlush = GL_TRUE;
1889 * Returns pointer to a default/dummy texture.
1890 * This is typically used when the current shader has tex/sample instructions
1891 * but the user has not provided a (any) texture(s).
1893 struct gl_texture_object *
1894 st_get_default_texture(struct st_context *st)
1896 if (!st->default_texture) {
1897 static const GLenum target = GL_TEXTURE_2D;
1898 GLubyte pixels[16][16][4];
1899 struct gl_texture_object *texObj;
1900 struct gl_texture_image *texImg;
1903 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1904 * when attempting to sample incomplete textures.
1906 for (i = 0; i < 16; i++) {
1907 for (j = 0; j < 16; j++) {
1908 pixels[i][j][0] = 0;
1909 pixels[i][j][1] = 0;
1910 pixels[i][j][2] = 0;
1911 pixels[i][j][3] = 255;
1915 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target);
1917 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0);
1919 _mesa_init_teximage_fields(st->ctx, target, texImg,
1920 16, 16, 1, 0, /* w, h, d, border */
1923 st_TexImage(st->ctx, 2, target,
1924 0, GL_RGBA, /* level, intformat */
1925 16, 16, 1, 0, /* w, h, d, border */
1926 GL_RGBA, GL_UNSIGNED_BYTE, pixels,
1927 &st->ctx->DefaultPacking,
1931 texObj->MinFilter = GL_NEAREST;
1932 texObj->MagFilter = GL_NEAREST;
1933 texObj->_Complete = GL_TRUE;
1935 st->default_texture = texObj;
1937 return st->default_texture;
1942 st_init_texture_functions(struct dd_function_table *functions)
1944 functions->ChooseTextureFormat = st_ChooseTextureFormat;
1945 functions->TexImage1D = st_TexImage1D;
1946 functions->TexImage2D = st_TexImage2D;
1947 functions->TexImage3D = st_TexImage3D;
1948 functions->TexSubImage1D = st_TexSubImage1D;
1949 functions->TexSubImage2D = st_TexSubImage2D;
1950 functions->TexSubImage3D = st_TexSubImage3D;
1951 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D;
1952 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D;
1953 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D;
1954 functions->CopyTexImage1D = st_CopyTexImage1D;
1955 functions->CopyTexImage2D = st_CopyTexImage2D;
1956 functions->CopyTexSubImage1D = st_CopyTexSubImage1D;
1957 functions->CopyTexSubImage2D = st_CopyTexSubImage2D;
1958 functions->CopyTexSubImage3D = st_CopyTexSubImage3D;
1959 functions->GenerateMipmap = st_generate_mipmap;
1961 functions->GetTexImage = st_GetTexImage;
1963 /* compressed texture functions */
1964 functions->CompressedTexImage2D = st_CompressedTexImage2D;
1965 functions->GetCompressedTexImage = st_GetCompressedTexImage;
1967 functions->NewTextureObject = st_NewTextureObject;
1968 functions->NewTextureImage = st_NewTextureImage;
1969 functions->DeleteTexture = st_DeleteTextureObject;
1970 functions->FreeTexImageData = st_FreeTextureImageData;
1971 functions->UpdateTexturePalette = 0;
1973 functions->TextureMemCpy = do_memcpy;
1975 /* XXX Temporary until we can query pipe's texture sizes */
1976 functions->TestProxyTexImage = _mesa_test_proxy_teximage;