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_resource_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_resource_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_BIND_SAMPLER_VIEW;
218 if (util_format_is_depth_or_stencil(fmt))
219 usage |= PIPE_BIND_DEPTH_STENCIL;
221 usage |= PIPE_BIND_RENDER_TARGET;
227 * Allocate a pipe_resource 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_resource templ;
391 struct pipe_resource *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_BIND_BLIT_DESTINATION);
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._usage = PIPE_USAGE_DEFAULT;
429 templ.bind = PIPE_BIND_SAMPLER_VIEW;
430 src_tex = screen->resource_create(screen, &templ);
435 /* Put user's tex data into the temporary texture
437 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx), src_tex,
438 0, 0, 0, /* face, level are zero */
440 0, 0, width, height); /* x, y, w, h */
441 map = pipe_transfer_map(pipe, tex_xfer);
443 _mesa_texstore(ctx, 2, GL_RGBA, mesa_format,
445 0, 0, 0, /* dest x/y/z offset */
446 tex_xfer->stride, /* dest row stride (bytes) */
447 dstImageOffsets, /* image offsets (for 3D only) */
448 width, height, 1, /* size */
449 format, type, /* source format/type */
450 pixels, /* source data */
451 unpack); /* source data packing */
453 pipe_transfer_unmap(pipe, tex_xfer);
454 pipe->transfer_destroy(pipe, tex_xfer);
456 /* Create temporary sampler view */
457 u_sampler_view_default_template(&view_templ,
460 src_view = pipe->create_sampler_view(pipe, src_tex, &view_templ);
463 /* copy / compress image */
464 util_blit_pixels_tex(ctx->st->blit,
465 src_view, /* sampler view (src) */
466 0, 0, /* src x0, y0 */
467 width, height, /* src x1, y1 */
468 dst_surface, /* pipe_surface (dst) */
469 xoffset, yoffset, /* dst x0, y0 */
470 xoffset + width, /* dst x1 */
471 yoffset + height, /* dst y1 */
473 PIPE_TEX_MIPFILTER_NEAREST);
475 pipe_surface_reference(&dst_surface, NULL);
476 pipe_resource_reference(&src_tex, NULL);
477 pipe_sampler_view_reference(&src_view, NULL);
484 * Do glTexImage1/2/3D().
487 st_TexImage(GLcontext * ctx,
489 GLenum target, GLint level,
490 GLint internalFormat,
491 GLint width, GLint height, GLint depth,
493 GLenum format, GLenum type, const void *pixels,
494 const struct gl_pixelstore_attrib *unpack,
495 struct gl_texture_object *texObj,
496 struct gl_texture_image *texImage,
497 GLsizei imageSize, GLboolean compressed_src)
499 struct pipe_screen *screen = ctx->st->pipe->screen;
500 struct st_texture_object *stObj = st_texture_object(texObj);
501 struct st_texture_image *stImage = st_texture_image(texImage);
502 GLint postConvWidth, postConvHeight;
503 GLint texelBytes, sizeInBytes;
504 GLuint dstRowStride = 0;
505 struct gl_pixelstore_attrib unpackNB;
506 enum pipe_transfer_usage transfer_usage = 0;
508 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__,
509 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border);
511 /* switch to "normal" */
512 if (stObj->surface_based) {
513 _mesa_clear_texture_object(ctx, texObj);
514 stObj->surface_based = GL_FALSE;
517 /* gallium does not support texture borders, strip it off */
519 strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB);
521 texImage->Width = width;
522 texImage->Height = height;
523 texImage->Depth = depth;
524 texImage->Border = 0;
528 postConvWidth = width;
529 postConvHeight = height;
531 stImage->face = _mesa_tex_target_to_face(target);
532 stImage->level = level;
535 if (ctx->_ImageTransferState & IMAGE_CONVOLUTION_BIT) {
536 _mesa_adjust_image_for_convolution(ctx, dims, &postConvWidth,
541 _mesa_set_fetch_functions(texImage, dims);
543 if (_mesa_is_format_compressed(texImage->TexFormat)) {
544 /* must be a compressed format */
548 texelBytes = _mesa_get_format_bytes(texImage->TexFormat);
550 /* Minimum pitch of 32 bytes */
551 if (postConvWidth * texelBytes < 32) {
552 postConvWidth = 32 / texelBytes;
553 texImage->RowStride = postConvWidth;
556 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
557 /*assert(texImage->RowStride == postConvWidth);*/
560 /* Release the reference to a potentially orphaned buffer.
561 * Release any old malloced memory.
564 pipe_resource_reference(&stImage->pt, NULL);
565 assert(!texImage->Data);
567 else if (texImage->Data) {
568 _mesa_align_free(texImage->Data);
572 * See if the new image is somehow incompatible with the existing
573 * mipmap. If so, free the old mipmap.
576 if (stObj->teximage_realloc ||
577 level > (GLint) stObj->pt->last_level ||
578 !st_texture_match_image(stObj->pt, &stImage->base,
579 stImage->face, stImage->level)) {
581 pipe_resource_reference(&stObj->pt, NULL);
583 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
584 stObj->teximage_realloc = FALSE;
588 if (width == 0 || height == 0 || depth == 0) {
589 /* stop after freeing old image */
594 guess_and_alloc_texture(ctx->st, stObj, stImage);
596 /* Probably out of memory.
597 * Try flushing any pending rendering, then retry.
600 guess_and_alloc_texture(ctx->st, stObj, stImage);
602 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
608 assert(!stImage->pt);
611 st_texture_match_image(stObj->pt, &stImage->base,
612 stImage->face, stImage->level)) {
614 pipe_resource_reference(&stImage->pt, stObj->pt);
619 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
621 /* st_CopyTexImage calls this function with pixels == NULL, with
622 * the expectation that the texture will be set up but nothing
623 * more will be done. This is where those calls return:
625 if (compressed_src) {
626 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
628 "glCompressedTexImage");
631 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
633 pixels, unpack, "glTexImage");
636 /* Note: we can't check for pixels==NULL until after we've allocated
637 * memory for the texture.
640 /* See if we can do texture compression with a blit/render.
642 if (!compressed_src &&
644 _mesa_is_format_compressed(texImage->TexFormat) &&
645 screen->is_format_supported(screen,
648 PIPE_BIND_RENDER_TARGET, 0)) {
652 if (compress_with_blit(ctx, target, level, 0, 0, 0, width, height, depth,
653 format, type, pixels, unpack, texImage)) {
659 if (format == GL_DEPTH_COMPONENT &&
660 util_format_is_depth_and_stencil(stImage->pt->format))
661 transfer_usage = PIPE_TRANSFER_READ_WRITE;
663 transfer_usage = PIPE_TRANSFER_WRITE;
665 texImage->Data = st_texture_image_map(ctx->st, stImage, 0,
666 transfer_usage, 0, 0,
668 stImage->base.Height);
669 if(stImage->transfer)
670 dstRowStride = stImage->transfer->stride;
673 /* Allocate regular memory and store the image there temporarily. */
674 if (_mesa_is_format_compressed(texImage->TexFormat)) {
675 sizeInBytes = _mesa_format_image_size(texImage->TexFormat,
679 dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width);
683 dstRowStride = postConvWidth * texelBytes;
684 sizeInBytes = depth * dstRowStride * postConvHeight;
687 texImage->Data = _mesa_align_malloc(sizeInBytes, 16);
690 if (!texImage->Data) {
691 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
698 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
699 width, height, depth, width * texelBytes, dstRowStride);
701 /* Copy data. Would like to know when it's ok for us to eg. use
702 * the blitter to copy. Or, use the hardware to do the format
703 * conversion and copy:
705 if (compressed_src) {
706 const GLuint srcImageStride = _mesa_format_row_stride(texImage->TexFormat, width);
707 if(dstRowStride == srcImageStride)
708 memcpy(texImage->Data, pixels, imageSize);
711 char *dst = texImage->Data;
712 const char *src = pixels;
713 GLuint i, bw, bh, lines;
714 _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
715 lines = (height + bh - 1) / bh;
717 for(i = 0; i < lines; ++i)
719 memcpy(dst, src, srcImageStride);
721 src += srcImageStride;
726 const GLuint srcImageStride =
727 _mesa_image_image_stride(unpack, width, height, format, type);
729 const GLubyte *src = (const GLubyte *) pixels;
731 for (i = 0; i < depth; i++) {
732 if (!_mesa_texstore(ctx, dims,
733 texImage->_BaseFormat,
736 0, 0, 0, /* dstX/Y/Zoffset */
738 texImage->ImageOffsets,
740 format, type, src, unpack)) {
741 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
744 if (stImage->pt && i + 1 < depth) {
745 /* unmap this slice */
746 st_texture_image_unmap(ctx->st, stImage);
747 /* map next slice of 3D texture */
748 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1,
749 transfer_usage, 0, 0,
751 stImage->base.Height);
752 src += srcImageStride;
758 _mesa_unmap_teximage_pbo(ctx, unpack);
760 if (stImage->pt && texImage->Data) {
761 st_texture_image_unmap(ctx->st, stImage);
762 texImage->Data = NULL;
768 st_TexImage3D(GLcontext * ctx,
769 GLenum target, GLint level,
770 GLint internalFormat,
771 GLint width, GLint height, GLint depth,
773 GLenum format, GLenum type, const void *pixels,
774 const struct gl_pixelstore_attrib *unpack,
775 struct gl_texture_object *texObj,
776 struct gl_texture_image *texImage)
778 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth,
779 border, format, type, pixels, unpack, texObj, texImage,
785 st_TexImage2D(GLcontext * ctx,
786 GLenum target, GLint level,
787 GLint internalFormat,
788 GLint width, GLint height, GLint border,
789 GLenum format, GLenum type, const void *pixels,
790 const struct gl_pixelstore_attrib *unpack,
791 struct gl_texture_object *texObj,
792 struct gl_texture_image *texImage)
794 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border,
795 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
800 st_TexImage1D(GLcontext * ctx,
801 GLenum target, GLint level,
802 GLint internalFormat,
803 GLint width, GLint border,
804 GLenum format, GLenum type, const void *pixels,
805 const struct gl_pixelstore_attrib *unpack,
806 struct gl_texture_object *texObj,
807 struct gl_texture_image *texImage)
809 st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border,
810 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
815 st_CompressedTexImage2D(GLcontext *ctx, GLenum target, GLint level,
816 GLint internalFormat,
817 GLint width, GLint height, GLint border,
818 GLsizei imageSize, const GLvoid *data,
819 struct gl_texture_object *texObj,
820 struct gl_texture_image *texImage)
822 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border,
823 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE);
829 * glGetTexImage() helper: decompress a compressed texture by rendering
830 * a textured quad. Store the results in the user's buffer.
833 decompress_with_blit(GLcontext * ctx, GLenum target, GLint level,
834 GLenum format, GLenum type, GLvoid *pixels,
835 struct gl_texture_object *texObj,
836 struct gl_texture_image *texImage)
838 struct pipe_context *pipe = ctx->st->pipe;
839 struct pipe_screen *screen = pipe->screen;
840 struct st_texture_image *stImage = st_texture_image(texImage);
841 struct st_texture_object *stObj = st_texture_object(texObj);
842 struct pipe_sampler_view *src_view = st_get_stobj_sampler_view(stObj);
843 const GLuint width = texImage->Width;
844 const GLuint height = texImage->Height;
845 struct pipe_surface *dst_surface;
846 struct pipe_resource *dst_texture;
847 struct pipe_transfer *tex_xfer;
848 unsigned bind = (PIPE_BIND_BLIT_DESTINATION |
849 PIPE_BIND_RENDER_TARGET | /* util_blit may choose to render */
850 PIPE_BIND_TRANSFER_READ);
852 /* create temp / dest surface */
853 if (!util_create_rgba_surface(screen, width, height, bind,
854 &dst_texture, &dst_surface)) {
855 _mesa_problem(ctx, "util_create_rgba_surface() failed "
856 "in decompress_with_blit()");
860 /* blit/render/decompress */
861 util_blit_pixels_tex(ctx->st->blit,
862 src_view, /* pipe_resource (src) */
863 0, 0, /* src x0, y0 */
864 width, height, /* src x1, y1 */
865 dst_surface, /* pipe_surface (dst) */
866 0, 0, /* dst x0, y0 */
867 width, height, /* dst x1, y1 */
869 PIPE_TEX_MIPFILTER_NEAREST);
871 /* map the dst_surface so we can read from it */
872 tex_xfer = st_cond_flush_get_tex_transfer(st_context(ctx),
873 dst_texture, 0, 0, 0,
875 0, 0, width, height);
877 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels);
879 /* copy/pack data into user buffer */
880 if (st_equal_formats(stImage->pt->format, format, type)) {
882 const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format);
883 ubyte *map = pipe_transfer_map(pipe, tex_xfer);
885 for (row = 0; row < height; row++) {
886 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
887 height, format, type, row, 0);
888 memcpy(dest, map, bytesPerRow);
889 map += tex_xfer->stride;
891 pipe_transfer_unmap(pipe, tex_xfer);
894 /* format translation via floats */
896 for (row = 0; row < height; row++) {
897 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */
898 GLfloat rgba[4 * MAX_WIDTH];
899 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
900 height, format, type, row, 0);
902 if (ST_DEBUG & DEBUG_FALLBACK)
903 debug_printf("%s: fallback format translation\n", __FUNCTION__);
905 /* get float[4] rgba row from surface */
906 pipe_get_tile_rgba(pipe, tex_xfer, 0, row, width, 1, rgba);
908 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format,
909 type, dest, &ctx->Pack, transferOps);
913 _mesa_unmap_pbo_dest(ctx, &ctx->Pack);
915 pipe->transfer_destroy(pipe, tex_xfer);
917 /* destroy the temp / dest surface */
918 util_destroy_rgba_surface(dst_texture, dst_surface);
924 * Need to map texture image into memory before copying image data,
928 st_get_tex_image(GLcontext * ctx, GLenum target, GLint level,
929 GLenum format, GLenum type, GLvoid * pixels,
930 struct gl_texture_object *texObj,
931 struct gl_texture_image *texImage, GLboolean compressed_dst)
933 struct st_texture_image *stImage = st_texture_image(texImage);
934 const GLuint dstImageStride =
935 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height,
941 util_format_is_s3tc(stImage->pt->format) &&
943 /* Need to decompress the texture.
944 * We'll do this by rendering a textured quad.
945 * Note that we only expect RGBA formats (no Z/depth formats).
947 decompress_with_blit(ctx, target, level, format, type, pixels,
954 /* Image is stored in hardware format in a buffer managed by the
955 * kernel. Need to explicitly map and unmap it.
957 unsigned face = _mesa_tex_target_to_face(target);
959 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level,
962 texImage->Data = st_texture_image_map(ctx->st, stImage, 0,
963 PIPE_TRANSFER_READ, 0, 0,
965 stImage->base.Height);
966 texImage->RowStride = stImage->transfer->stride / util_format_get_blocksize(stImage->pt->format);
969 /* Otherwise, the image should actually be stored in
970 * texImage->Data. This is pretty confusing for
971 * everybody, I'd much prefer to separate the two functions of
972 * texImage->Data - storage for texture images in main memory
973 * and access (ie mappings) of images. In other words, we'd
974 * create a new texImage->Map field and leave Data simply for
977 assert(texImage->Data);
980 depth = texImage->Depth;
983 dest = (GLubyte *) pixels;
985 for (i = 0; i < depth; i++) {
986 if (compressed_dst) {
987 _mesa_get_compressed_teximage(ctx, target, level, dest,
991 _mesa_get_teximage(ctx, target, level, format, type, dest,
995 if (stImage->pt && i + 1 < depth) {
996 /* unmap this slice */
997 st_texture_image_unmap(ctx->st, stImage);
998 /* map next slice of 3D texture */
999 texImage->Data = st_texture_image_map(ctx->st, stImage, i + 1,
1000 PIPE_TRANSFER_READ, 0, 0,
1001 stImage->base.Width,
1002 stImage->base.Height);
1003 dest += dstImageStride;
1007 texImage->Depth = depth;
1011 st_texture_image_unmap(ctx->st, stImage);
1012 texImage->Data = NULL;
1018 st_GetTexImage(GLcontext * ctx, GLenum target, GLint level,
1019 GLenum format, GLenum type, GLvoid * pixels,
1020 struct gl_texture_object *texObj,
1021 struct gl_texture_image *texImage)
1023 st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage,
1029 st_GetCompressedTexImage(GLcontext *ctx, GLenum target, GLint level,
1031 struct gl_texture_object *texObj,
1032 struct gl_texture_image *texImage)
1034 st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage,
1041 st_TexSubimage(GLcontext *ctx, GLint dims, GLenum target, GLint level,
1042 GLint xoffset, GLint yoffset, GLint zoffset,
1043 GLint width, GLint height, GLint depth,
1044 GLenum format, GLenum type, const void *pixels,
1045 const struct gl_pixelstore_attrib *packing,
1046 struct gl_texture_object *texObj,
1047 struct gl_texture_image *texImage)
1049 struct pipe_screen *screen = ctx->st->pipe->screen;
1050 struct st_texture_image *stImage = st_texture_image(texImage);
1051 GLuint dstRowStride;
1052 const GLuint srcImageStride =
1053 _mesa_image_image_stride(packing, width, height, format, type);
1056 /* init to silence warning only: */
1057 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE;
1059 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__,
1060 _mesa_lookup_enum_by_nr(target),
1061 level, xoffset, yoffset, width, height);
1064 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format,
1065 type, pixels, packing, "glTexSubImage2D");
1069 /* See if we can do texture compression with a blit/render.
1071 if (!ctx->Mesa_DXTn &&
1072 _mesa_is_format_compressed(texImage->TexFormat) &&
1073 screen->is_format_supported(screen,
1074 stImage->pt->format,
1075 stImage->pt->target,
1076 PIPE_BIND_RENDER_TARGET, 0)) {
1077 if (compress_with_blit(ctx, target, level,
1078 xoffset, yoffset, zoffset,
1079 width, height, depth,
1080 format, type, pixels, packing, texImage)) {
1085 /* Map buffer if necessary. Need to lock to prevent other contexts
1086 * from uploading the buffer under us.
1089 unsigned face = _mesa_tex_target_to_face(target);
1091 if (format == GL_DEPTH_COMPONENT &&
1092 util_format_is_depth_and_stencil(stImage->pt->format))
1093 transfer_usage = PIPE_TRANSFER_READ_WRITE;
1095 transfer_usage = PIPE_TRANSFER_WRITE;
1097 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level,
1099 texImage->Data = st_texture_image_map(ctx->st, stImage, zoffset,
1105 if (!texImage->Data) {
1106 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
1110 src = (const GLubyte *) pixels;
1111 dstRowStride = stImage->transfer->stride;
1113 for (i = 0; i < depth; i++) {
1114 if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat,
1115 texImage->TexFormat,
1119 texImage->ImageOffsets,
1121 format, type, src, packing)) {
1122 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
1125 if (stImage->pt && i + 1 < depth) {
1126 /* unmap this slice */
1127 st_texture_image_unmap(ctx->st, stImage);
1128 /* map next slice of 3D texture */
1129 texImage->Data = st_texture_image_map(ctx->st, stImage,
1134 src += srcImageStride;
1139 _mesa_unmap_teximage_pbo(ctx, packing);
1141 if (stImage->pt && texImage->Data) {
1142 st_texture_image_unmap(ctx->st, stImage);
1143 texImage->Data = NULL;
1150 st_TexSubImage3D(GLcontext *ctx, GLenum target, GLint level,
1151 GLint xoffset, GLint yoffset, GLint zoffset,
1152 GLsizei width, GLsizei height, GLsizei depth,
1153 GLenum format, GLenum type, const GLvoid *pixels,
1154 const struct gl_pixelstore_attrib *packing,
1155 struct gl_texture_object *texObj,
1156 struct gl_texture_image *texImage)
1158 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
1159 width, height, depth, format, type,
1160 pixels, packing, texObj, texImage);
1165 st_TexSubImage2D(GLcontext *ctx, GLenum target, GLint level,
1166 GLint xoffset, GLint yoffset,
1167 GLsizei width, GLsizei height,
1168 GLenum format, GLenum type, const GLvoid * pixels,
1169 const struct gl_pixelstore_attrib *packing,
1170 struct gl_texture_object *texObj,
1171 struct gl_texture_image *texImage)
1173 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0,
1174 width, height, 1, format, type,
1175 pixels, packing, texObj, texImage);
1180 st_TexSubImage1D(GLcontext *ctx, GLenum target, GLint level,
1181 GLint xoffset, GLsizei width, GLenum format, GLenum type,
1182 const GLvoid * pixels,
1183 const struct gl_pixelstore_attrib *packing,
1184 struct gl_texture_object *texObj,
1185 struct gl_texture_image *texImage)
1187 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1,
1188 format, type, pixels, packing, texObj, texImage);
1193 st_CompressedTexSubImage1D(GLcontext *ctx, GLenum target, GLint level,
1194 GLint xoffset, GLsizei width,
1196 GLsizei imageSize, const GLvoid *data,
1197 struct gl_texture_object *texObj,
1198 struct gl_texture_image *texImage)
1205 st_CompressedTexSubImage2D(GLcontext *ctx, GLenum target, GLint level,
1206 GLint xoffset, GLint yoffset,
1207 GLsizei width, GLint height,
1209 GLsizei imageSize, const GLvoid *data,
1210 struct gl_texture_object *texObj,
1211 struct gl_texture_image *texImage)
1213 struct st_texture_image *stImage = st_texture_image(texImage);
1217 enum pipe_format pformat= stImage->pt->format;
1220 unsigned face = _mesa_tex_target_to_face(target);
1222 st_teximage_flush_before_map(ctx->st, stImage->pt, face, level,
1223 PIPE_TRANSFER_WRITE);
1224 texImage->Data = st_texture_image_map(ctx->st, stImage, 0,
1225 PIPE_TRANSFER_WRITE,
1229 srcBlockStride = util_format_get_stride(pformat, width);
1230 dstBlockStride = stImage->transfer->stride;
1232 assert(stImage->pt);
1233 /* TODO find good values for block and strides */
1234 /* TODO also adjust texImage->data for yoffset/xoffset */
1238 if (!texImage->Data) {
1239 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage");
1243 assert(xoffset % util_format_get_blockwidth(pformat) == 0);
1244 assert(yoffset % util_format_get_blockheight(pformat) == 0);
1245 assert(width % util_format_get_blockwidth(pformat) == 0);
1246 assert(height % util_format_get_blockheight(pformat) == 0);
1248 for (y = 0; y < height; y += util_format_get_blockheight(pformat)) {
1249 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1250 const char *src = (const char*)data + srcBlockStride * util_format_get_nblocksy(pformat, y);
1251 char *dst = (char*)texImage->Data + dstBlockStride * util_format_get_nblocksy(pformat, y);
1252 memcpy(dst, src, util_format_get_stride(pformat, width));
1256 st_texture_image_unmap(ctx->st, stImage);
1257 texImage->Data = NULL;
1263 st_CompressedTexSubImage3D(GLcontext *ctx, GLenum target, GLint level,
1264 GLint xoffset, GLint yoffset, GLint zoffset,
1265 GLsizei width, GLint height, GLint depth,
1267 GLsizei imageSize, const GLvoid *data,
1268 struct gl_texture_object *texObj,
1269 struct gl_texture_image *texImage)
1277 * Do a CopyTexSubImage operation using a read transfer from the source,
1278 * a write transfer to the destination and get_tile()/put_tile() to access
1279 * the pixels/texels.
1281 * Note: srcY=0=TOP of renderbuffer
1284 fallback_copy_texsubimage(GLcontext *ctx, GLenum target, GLint level,
1285 struct st_renderbuffer *strb,
1286 struct st_texture_image *stImage,
1288 GLint destX, GLint destY, GLint destZ,
1289 GLint srcX, GLint srcY,
1290 GLsizei width, GLsizei height)
1292 struct pipe_context *pipe = ctx->st->pipe;
1293 struct pipe_transfer *src_trans;
1295 enum pipe_transfer_usage transfer_usage;
1297 if (ST_DEBUG & DEBUG_FALLBACK)
1298 debug_printf("%s: fallback processing\n", __FUNCTION__);
1300 assert(width <= MAX_WIDTH);
1302 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1303 srcY = strb->Base.Height - srcY - height;
1306 src_trans = st_cond_flush_get_tex_transfer( st_context(ctx),
1313 if ((baseFormat == GL_DEPTH_COMPONENT ||
1314 baseFormat == GL_DEPTH_STENCIL) &&
1315 util_format_is_depth_and_stencil(stImage->pt->format))
1316 transfer_usage = PIPE_TRANSFER_READ_WRITE;
1318 transfer_usage = PIPE_TRANSFER_WRITE;
1320 st_teximage_flush_before_map(ctx->st, stImage->pt, 0, 0,
1323 texDest = st_texture_image_map(ctx->st, stImage, 0, transfer_usage,
1324 destX, destY, width, height);
1326 if (baseFormat == GL_DEPTH_COMPONENT ||
1327 baseFormat == GL_DEPTH_STENCIL) {
1328 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F ||
1329 ctx->Pixel.DepthBias != 0.0F);
1332 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1333 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1342 /* To avoid a large temp memory allocation, do copy row by row */
1343 for (row = 0; row < height; row++, srcY += yStep) {
1344 uint data[MAX_WIDTH];
1345 pipe_get_tile_z(pipe, src_trans, 0, srcY, width, 1, data);
1347 _mesa_scale_and_bias_depth_uint(ctx, width, data);
1349 pipe_put_tile_z(pipe, stImage->transfer, 0, row, width, 1, data);
1355 (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
1357 if (tempSrc && texDest) {
1358 const GLint dims = 2;
1359 const GLint dstRowStride = stImage->transfer->stride;
1360 struct gl_texture_image *texImage = &stImage->base;
1361 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking;
1363 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1364 unpack.Invert = GL_TRUE;
1367 /* get float/RGBA image from framebuffer */
1368 /* XXX this usually involves a lot of int/float conversion.
1369 * try to avoid that someday.
1371 pipe_get_tile_rgba(pipe, src_trans, 0, 0, width, height, tempSrc);
1373 /* Store into texture memory.
1374 * Note that this does some special things such as pixel transfer
1375 * ops and format conversion. In particular, if the dest tex format
1376 * is actually RGBA but the user created the texture as GL_RGB we
1377 * need to fill-in/override the alpha channel with 1.0.
1379 _mesa_texstore(ctx, dims,
1380 texImage->_BaseFormat,
1381 texImage->TexFormat,
1385 texImage->ImageOffsets,
1387 GL_RGBA, GL_FLOAT, tempSrc, /* src */
1391 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
1398 st_texture_image_unmap(ctx->st, stImage);
1399 pipe->transfer_destroy(pipe, src_trans);
1405 * If the format of the src renderbuffer and the format of the dest
1406 * texture are compatible (in terms of blitting), return a TGSI writemask
1407 * to be used during the blit.
1408 * If the src/dest are incompatible, return 0.
1411 compatible_src_dst_formats(GLcontext *ctx,
1412 const struct gl_renderbuffer *src,
1413 const struct gl_texture_image *dst)
1415 /* Get logical base formats for the src and dest.
1416 * That is, use the user-requested formats and not the actual, device-
1418 * For example, the user may have requested an A8 texture but the
1419 * driver may actually be using an RGBA texture format. When we
1420 * copy/blit to that texture, we only want to copy the Alpha channel
1421 * and not the RGB channels.
1423 * Similarly, when the src FBO was created an RGB format may have been
1424 * requested but the driver actually chose an RGBA format. In that case,
1425 * we don't want to copy the undefined Alpha channel to the dest texture
1426 * (it should be 1.0).
1428 const GLenum srcFormat = _mesa_base_fbo_format(ctx, src->InternalFormat);
1429 const GLenum dstFormat = _mesa_base_tex_format(ctx, dst->InternalFormat);
1432 * XXX when we have red-only and red/green renderbuffers we'll need
1433 * to add more cases here (or implement a general-purpose routine that
1434 * queries the existance of the R,G,B,A channels in the src and dest).
1436 if (srcFormat == dstFormat) {
1437 /* This is the same as matching_base_formats, which should
1438 * always pass, as it did previously.
1440 return TGSI_WRITEMASK_XYZW;
1442 else if (srcFormat == GL_RGB && dstFormat == GL_RGBA) {
1443 /* Make sure that A in the dest is 1. The actual src format
1444 * may be RGBA and have undefined A values.
1446 return TGSI_WRITEMASK_XYZ;
1448 else if (srcFormat == GL_RGBA && dstFormat == GL_RGB) {
1449 /* Make sure that A in the dest is 1. The actual dst format
1450 * may be RGBA and will need A=1 to provide proper alpha values
1451 * when sampled later.
1453 return TGSI_WRITEMASK_XYZ;
1456 if (ST_DEBUG & DEBUG_FALLBACK)
1457 debug_printf("%s failed for src %s, dst %s\n",
1459 _mesa_lookup_enum_by_nr(srcFormat),
1460 _mesa_lookup_enum_by_nr(dstFormat));
1471 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1472 * Note that the region to copy has already been clipped so we know we
1473 * won't read from outside the source renderbuffer's bounds.
1475 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1478 st_copy_texsubimage(GLcontext *ctx,
1479 GLenum target, GLint level,
1480 GLint destX, GLint destY, GLint destZ,
1481 GLint srcX, GLint srcY,
1482 GLsizei width, GLsizei height)
1484 struct gl_texture_unit *texUnit =
1485 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1486 struct gl_texture_object *texObj =
1487 _mesa_select_tex_object(ctx, texUnit, target);
1488 struct gl_texture_image *texImage =
1489 _mesa_select_tex_image(ctx, texObj, target, level);
1490 struct st_texture_image *stImage = st_texture_image(texImage);
1491 const GLenum texBaseFormat = texImage->_BaseFormat;
1492 struct gl_framebuffer *fb = ctx->ReadBuffer;
1493 struct st_renderbuffer *strb;
1494 struct pipe_context *pipe = ctx->st->pipe;
1495 struct pipe_screen *screen = pipe->screen;
1496 enum pipe_format dest_format, src_format;
1497 GLboolean use_fallback = GL_TRUE;
1498 GLboolean matching_base_formats;
1499 GLuint format_writemask;
1500 struct pipe_surface *dest_surface = NULL;
1501 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP);
1503 /* any rendering in progress must flushed before we grab the fb image */
1504 st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL);
1506 /* make sure finalize_textures has been called?
1508 if (0) st_validate_state(ctx->st);
1510 /* determine if copying depth or color data */
1511 if (texBaseFormat == GL_DEPTH_COMPONENT ||
1512 texBaseFormat == GL_DEPTH_STENCIL) {
1513 strb = st_renderbuffer(fb->_DepthBuffer);
1516 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1517 strb = st_renderbuffer(fb->_ColorReadBuffer);
1520 if (!strb || !strb->surface || !stImage->pt) {
1521 debug_printf("%s: null strb or stImage\n", __FUNCTION__);
1549 if (width < 0 || height < 0)
1554 assert(strb->surface);
1555 assert(stImage->pt);
1557 src_format = strb->surface->format;
1558 dest_format = stImage->pt->format;
1561 * Determine if the src framebuffer and dest texture have the same
1562 * base format. We need this to detect a case such as the framebuffer
1563 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1564 * texture format stores RGBA we need to set A=1 (overriding the
1565 * framebuffer's alpha values). We can't do that with the blit or
1566 * textured-quad paths.
1568 matching_base_formats =
1569 (_mesa_get_format_base_format(strb->Base.Format) ==
1570 _mesa_get_format_base_format(texImage->TexFormat));
1571 format_writemask = compatible_src_dst_formats(ctx, &strb->Base, texImage);
1573 if (ctx->_ImageTransferState == 0x0) {
1575 if (matching_base_formats &&
1576 src_format == dest_format &&
1579 /* use surface_copy() / blit */
1581 dest_surface = screen->get_tex_surface(screen, stImage->pt,
1582 stImage->face, stImage->level,
1584 PIPE_BIND_BLIT_DESTINATION);
1586 /* for surface_copy(), y=0=top, always */
1587 pipe->surface_copy(pipe,
1596 use_fallback = GL_FALSE;
1598 else if (format_writemask &&
1599 texBaseFormat != GL_DEPTH_COMPONENT &&
1600 texBaseFormat != GL_DEPTH_STENCIL &&
1601 screen->is_format_supported(screen, src_format,
1603 PIPE_BIND_SAMPLER_VIEW,
1605 screen->is_format_supported(screen, dest_format,
1607 PIPE_BIND_RENDER_TARGET,
1609 /* draw textured quad to do the copy */
1612 dest_surface = screen->get_tex_surface(screen, stImage->pt,
1613 stImage->face, stImage->level,
1615 PIPE_BIND_BLIT_DESTINATION);
1618 srcY1 = strb->Base.Height - srcY - height;
1619 srcY0 = srcY1 + height;
1623 srcY1 = srcY0 + height;
1625 util_blit_pixels_writemask(ctx->st->blit,
1627 st_renderbuffer_get_sampler_view(strb, pipe),
1629 srcX + width, srcY1,
1632 destX + width, destY + height,
1633 0.0, PIPE_TEX_MIPFILTER_NEAREST,
1635 use_fallback = GL_FALSE;
1639 pipe_surface_reference(&dest_surface, NULL);
1643 /* software fallback */
1644 fallback_copy_texsubimage(ctx, target, level,
1645 strb, stImage, texBaseFormat,
1646 destX, destY, destZ,
1647 srcX, srcY, width, height);
1654 st_CopyTexImage1D(GLcontext * ctx, GLenum target, GLint level,
1655 GLenum internalFormat,
1656 GLint x, GLint y, GLsizei width, GLint border)
1658 struct gl_texture_unit *texUnit =
1659 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1660 struct gl_texture_object *texObj =
1661 _mesa_select_tex_object(ctx, texUnit, target);
1662 struct gl_texture_image *texImage =
1663 _mesa_select_tex_image(ctx, texObj, target, level);
1665 /* Setup or redefine the texture object, texture and texture
1666 * image. Don't populate yet.
1668 ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
1670 GL_RGBA, CHAN_TYPE, NULL,
1671 &ctx->DefaultPacking, texObj, texImage);
1673 st_copy_texsubimage(ctx, target, level,
1674 0, 0, 0, /* destX,Y,Z */
1675 x, y, width, 1); /* src X, Y, size */
1680 st_CopyTexImage2D(GLcontext * ctx, GLenum target, GLint level,
1681 GLenum internalFormat,
1682 GLint x, GLint y, GLsizei width, GLsizei height,
1685 struct gl_texture_unit *texUnit =
1686 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1687 struct gl_texture_object *texObj =
1688 _mesa_select_tex_object(ctx, texUnit, target);
1689 struct gl_texture_image *texImage =
1690 _mesa_select_tex_image(ctx, texObj, target, level);
1692 /* Setup or redefine the texture object, texture and texture
1693 * image. Don't populate yet.
1695 ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
1696 width, height, border,
1697 GL_RGBA, CHAN_TYPE, NULL,
1698 &ctx->DefaultPacking, texObj, texImage);
1700 st_copy_texsubimage(ctx, target, level,
1701 0, 0, 0, /* destX,Y,Z */
1702 x, y, width, height); /* src X, Y, size */
1707 st_CopyTexSubImage1D(GLcontext * ctx, GLenum target, GLint level,
1708 GLint xoffset, GLint x, GLint y, GLsizei width)
1710 const GLint yoffset = 0, zoffset = 0;
1711 const GLsizei height = 1;
1712 st_copy_texsubimage(ctx, target, level,
1713 xoffset, yoffset, zoffset, /* destX,Y,Z */
1714 x, y, width, height); /* src X, Y, size */
1719 st_CopyTexSubImage2D(GLcontext * ctx, GLenum target, GLint level,
1720 GLint xoffset, GLint yoffset,
1721 GLint x, GLint y, GLsizei width, GLsizei height)
1723 const GLint zoffset = 0;
1724 st_copy_texsubimage(ctx, target, level,
1725 xoffset, yoffset, zoffset, /* destX,Y,Z */
1726 x, y, width, height); /* src X, Y, size */
1731 st_CopyTexSubImage3D(GLcontext * ctx, GLenum target, GLint level,
1732 GLint xoffset, GLint yoffset, GLint zoffset,
1733 GLint x, GLint y, GLsizei width, GLsizei height)
1735 st_copy_texsubimage(ctx, target, level,
1736 xoffset, yoffset, zoffset, /* destX,Y,Z */
1737 x, y, width, height); /* src X, Y, size */
1742 copy_image_data_to_texture(struct st_context *st,
1743 struct st_texture_object *stObj,
1745 struct st_texture_image *stImage)
1748 /* Copy potentially with the blitter:
1750 st_texture_image_copy(st->pipe,
1751 stObj->pt, dstLevel, /* dest texture, level */
1752 stImage->pt, /* src texture */
1755 pipe_resource_reference(&stImage->pt, NULL);
1757 else if (stImage->base.Data) {
1758 /* More straightforward upload.
1760 st_teximage_flush_before_map(st, stObj->pt, stImage->face, dstLevel,
1761 PIPE_TRANSFER_WRITE);
1763 st_texture_image_data(st,
1768 stImage->base.RowStride *
1769 util_format_get_blocksize(stObj->pt->format),
1770 stImage->base.RowStride *
1771 stImage->base.Height *
1772 util_format_get_blocksize(stObj->pt->format));
1773 _mesa_align_free(stImage->base.Data);
1774 stImage->base.Data = NULL;
1777 pipe_resource_reference(&stImage->pt, stObj->pt);
1782 * Called during state validation. When this function is finished,
1783 * the texture object should be ready for rendering.
1784 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1787 st_finalize_texture(GLcontext *ctx,
1788 struct pipe_context *pipe,
1789 struct gl_texture_object *tObj,
1790 GLboolean *needFlush)
1792 struct st_texture_object *stObj = st_texture_object(tObj);
1793 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
1794 GLuint blockSize, face;
1795 struct st_texture_image *firstImage;
1797 *needFlush = GL_FALSE;
1799 if (stObj->base._Complete) {
1800 /* The texture is complete and we know exactly how many mipmap levels
1801 * are present/needed. This is conditional because we may be called
1802 * from the st_generate_mipmap() function when the texture object is
1803 * incomplete. In that case, we'll have set stObj->lastLevel before
1806 if (stObj->base.MinFilter == GL_LINEAR ||
1807 stObj->base.MinFilter == GL_NEAREST)
1808 stObj->lastLevel = stObj->base.BaseLevel;
1810 stObj->lastLevel = stObj->base._MaxLevel - stObj->base.BaseLevel;
1813 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]);
1815 /* If both firstImage and stObj point to a texture which can contain
1816 * all active images, favour firstImage. Note that because of the
1817 * completeness requirement, we know that the image dimensions
1820 if (firstImage->pt &&
1821 firstImage->pt != stObj->pt &&
1822 firstImage->pt->last_level >= stObj->lastLevel) {
1823 pipe_resource_reference(&stObj->pt, firstImage->pt);
1824 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
1827 /* bytes per pixel block (blocks are usually 1x1) */
1828 blockSize = _mesa_get_format_bytes(firstImage->base.TexFormat);
1830 /* If we already have a gallium texture, check that it matches the texture
1831 * object's format, target, size, num_levels, etc.
1834 const enum pipe_format fmt =
1835 st_mesa_format_to_pipe_format(firstImage->base.TexFormat);
1836 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) ||
1837 stObj->pt->format != fmt ||
1838 stObj->pt->last_level < stObj->lastLevel ||
1839 stObj->pt->width0 != firstImage->base.Width2 ||
1840 stObj->pt->height0 != firstImage->base.Height2 ||
1841 stObj->pt->depth0 != firstImage->base.Depth2)
1843 pipe_resource_reference(&stObj->pt, NULL);
1844 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
1845 ctx->st->dirty.st |= ST_NEW_FRAMEBUFFER;
1849 /* May need to create a new gallium texture:
1852 const enum pipe_format fmt =
1853 st_mesa_format_to_pipe_format(firstImage->base.TexFormat);
1854 GLuint usage = default_usage(fmt);
1856 stObj->pt = st_texture_create(ctx->st,
1857 gl_target_to_pipe(stObj->base.Target),
1860 firstImage->base.Width2,
1861 firstImage->base.Height2,
1862 firstImage->base.Depth2,
1866 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
1871 /* Pull in any images not in the object's texture:
1873 for (face = 0; face < nr_faces; face++) {
1875 for (level = 0; level <= stObj->lastLevel; level++) {
1876 struct st_texture_image *stImage =
1877 st_texture_image(stObj->base.Image[face][stObj->base.BaseLevel + level]);
1879 /* Need to import images in main memory or held in other textures.
1881 if (stImage && stObj->pt != stImage->pt) {
1882 copy_image_data_to_texture(ctx->st, stObj, level, stImage);
1883 *needFlush = GL_TRUE;
1893 * Returns pointer to a default/dummy texture.
1894 * This is typically used when the current shader has tex/sample instructions
1895 * but the user has not provided a (any) texture(s).
1897 struct gl_texture_object *
1898 st_get_default_texture(struct st_context *st)
1900 if (!st->default_texture) {
1901 static const GLenum target = GL_TEXTURE_2D;
1902 GLubyte pixels[16][16][4];
1903 struct gl_texture_object *texObj;
1904 struct gl_texture_image *texImg;
1907 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1908 * when attempting to sample incomplete textures.
1910 for (i = 0; i < 16; i++) {
1911 for (j = 0; j < 16; j++) {
1912 pixels[i][j][0] = 0;
1913 pixels[i][j][1] = 0;
1914 pixels[i][j][2] = 0;
1915 pixels[i][j][3] = 255;
1919 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target);
1921 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0);
1923 _mesa_init_teximage_fields(st->ctx, target, texImg,
1924 16, 16, 1, 0, /* w, h, d, border */
1927 st_TexImage(st->ctx, 2, target,
1928 0, GL_RGBA, /* level, intformat */
1929 16, 16, 1, 0, /* w, h, d, border */
1930 GL_RGBA, GL_UNSIGNED_BYTE, pixels,
1931 &st->ctx->DefaultPacking,
1935 texObj->MinFilter = GL_NEAREST;
1936 texObj->MagFilter = GL_NEAREST;
1937 texObj->_Complete = GL_TRUE;
1939 st->default_texture = texObj;
1941 return st->default_texture;
1946 st_init_texture_functions(struct dd_function_table *functions)
1948 functions->ChooseTextureFormat = st_ChooseTextureFormat;
1949 functions->TexImage1D = st_TexImage1D;
1950 functions->TexImage2D = st_TexImage2D;
1951 functions->TexImage3D = st_TexImage3D;
1952 functions->TexSubImage1D = st_TexSubImage1D;
1953 functions->TexSubImage2D = st_TexSubImage2D;
1954 functions->TexSubImage3D = st_TexSubImage3D;
1955 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D;
1956 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D;
1957 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D;
1958 functions->CopyTexImage1D = st_CopyTexImage1D;
1959 functions->CopyTexImage2D = st_CopyTexImage2D;
1960 functions->CopyTexSubImage1D = st_CopyTexSubImage1D;
1961 functions->CopyTexSubImage2D = st_CopyTexSubImage2D;
1962 functions->CopyTexSubImage3D = st_CopyTexSubImage3D;
1963 functions->GenerateMipmap = st_generate_mipmap;
1965 functions->GetTexImage = st_GetTexImage;
1967 /* compressed texture functions */
1968 functions->CompressedTexImage2D = st_CompressedTexImage2D;
1969 functions->GetCompressedTexImage = st_GetCompressedTexImage;
1971 functions->NewTextureObject = st_NewTextureObject;
1972 functions->NewTextureImage = st_NewTextureImage;
1973 functions->DeleteTexture = st_DeleteTextureObject;
1974 functions->FreeTexImageData = st_FreeTextureImageData;
1975 functions->UpdateTexturePalette = 0;
1977 functions->TextureMemCpy = do_memcpy;
1979 /* XXX Temporary until we can query pipe's texture sizes */
1980 functions->TestProxyTexImage = _mesa_test_proxy_teximage;