1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "main/mfeatures.h"
29 #include "main/bufferobj.h"
30 #include "main/enums.h"
31 #include "main/fbobject.h"
32 #include "main/formats.h"
33 #include "main/image.h"
34 #include "main/imports.h"
35 #include "main/macros.h"
36 #include "main/mipmap.h"
37 #include "main/pack.h"
39 #include "main/pixeltransfer.h"
40 #include "main/texcompress.h"
41 #include "main/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_flush.h"
51 #include "state_tracker/st_cb_texture.h"
52 #include "state_tracker/st_format.h"
53 #include "state_tracker/st_texture.h"
54 #include "state_tracker/st_gen_mipmap.h"
55 #include "state_tracker/st_atom.h"
57 #include "pipe/p_context.h"
58 #include "pipe/p_defines.h"
59 #include "util/u_inlines.h"
60 #include "pipe/p_shader_tokens.h"
61 #include "util/u_tile.h"
62 #include "util/u_blit.h"
63 #include "util/u_format.h"
64 #include "util/u_surface.h"
65 #include "util/u_sampler.h"
66 #include "util/u_math.h"
67 #include "util/u_box.h"
69 #define DBG if (0) printf
72 static enum pipe_texture_target
73 gl_target_to_pipe(GLenum target)
77 return PIPE_TEXTURE_1D;
79 return PIPE_TEXTURE_2D;
80 case GL_TEXTURE_RECTANGLE_NV:
81 return PIPE_TEXTURE_RECT;
83 return PIPE_TEXTURE_3D;
84 case GL_TEXTURE_CUBE_MAP_ARB:
85 return PIPE_TEXTURE_CUBE;
86 case GL_TEXTURE_1D_ARRAY_EXT:
87 return PIPE_TEXTURE_1D_ARRAY;
88 case GL_TEXTURE_2D_ARRAY_EXT:
89 return PIPE_TEXTURE_2D_ARRAY;
90 case GL_TEXTURE_BUFFER:
99 /** called via ctx->Driver.NewTextureImage() */
100 static struct gl_texture_image *
101 st_NewTextureImage(struct gl_context * ctx)
103 DBG("%s\n", __FUNCTION__);
105 return (struct gl_texture_image *) ST_CALLOC_STRUCT(st_texture_image);
109 /** called via ctx->Driver.NewTextureObject() */
110 static struct gl_texture_object *
111 st_NewTextureObject(struct gl_context * ctx, GLuint name, GLenum target)
113 struct st_texture_object *obj = ST_CALLOC_STRUCT(st_texture_object);
115 DBG("%s\n", __FUNCTION__);
116 _mesa_initialize_texture_object(&obj->base, name, target);
121 /** called via ctx->Driver.DeleteTextureObject() */
123 st_DeleteTextureObject(struct gl_context *ctx,
124 struct gl_texture_object *texObj)
126 struct st_context *st = st_context(ctx);
127 struct st_texture_object *stObj = st_texture_object(texObj);
129 pipe_resource_reference(&stObj->pt, NULL);
130 if (stObj->sampler_view) {
131 if (stObj->sampler_view->context != st->pipe) {
132 /* Take "ownership" of this texture sampler view by setting
133 * its context pointer to this context. This avoids potential
134 * crashes when the texture object is shared among contexts
135 * and the original/owner context has already been destroyed.
137 stObj->sampler_view->context = st->pipe;
139 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
141 _mesa_delete_texture_object(ctx, texObj);
145 /** called via ctx->Driver.FreeTexImageData() */
147 st_FreeTextureImageData(struct gl_context * ctx, struct gl_texture_image *texImage)
149 struct st_texture_image *stImage = st_texture_image(texImage);
151 DBG("%s\n", __FUNCTION__);
154 pipe_resource_reference(&stImage->pt, NULL);
157 if (texImage->Data) {
158 _mesa_align_free(texImage->Data);
159 texImage->Data = NULL;
165 * From linux kernel i386 header files, copes with odd sizes better
166 * than COPY_DWORDS would:
167 * XXX Put this in src/mesa/main/imports.h ???
169 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
171 __memcpy(void *to, const void *from, size_t n)
174 __asm__ __volatile__("rep ; movsl\n\t"
178 "1:\ttestb $1,%b4\n\t"
180 "movsb\n" "2:":"=&c"(d0), "=&D"(d1), "=&S"(d2)
181 :"0"(n / 4), "q"(n), "1"((long) to), "2"((long) from)
186 #define __memcpy(a,b,c) memcpy(a,b,c)
191 * The system memcpy (at least on ubuntu 5.10) has problems copying
192 * to agp (writecombined) memory from a source which isn't 64-byte
193 * aligned - there is a 4x performance falloff.
195 * The x86 __memcpy is immune to this but is slightly slower
196 * (10%-ish) than the system memcpy.
198 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
199 * isn't much faster than x86_memcpy for agp copies.
201 * TODO: switch dynamically.
204 do_memcpy(void *dest, const void *src, size_t n)
206 if ((((unsigned long) src) & 63) || (((unsigned long) dest) & 63)) {
207 return __memcpy(dest, src, n);
210 return memcpy(dest, src, n);
215 * Return default texture resource binding bitmask for the given format.
218 default_bindings(struct st_context *st, enum pipe_format format)
220 struct pipe_screen *screen = st->pipe->screen;
221 const unsigned target = PIPE_TEXTURE_2D;
224 if (util_format_is_depth_or_stencil(format))
225 bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_DEPTH_STENCIL;
227 bindings = PIPE_BIND_SAMPLER_VIEW | PIPE_BIND_RENDER_TARGET;
229 if (screen->is_format_supported(screen, format, target, 0, bindings))
233 format = util_format_linear(format);
235 if (screen->is_format_supported(screen, format, target, 0, bindings))
238 return PIPE_BIND_SAMPLER_VIEW;
243 /** Return number of image dimensions (1, 2 or 3) for a texture target. */
245 get_texture_dims(GLenum target)
249 case GL_TEXTURE_1D_ARRAY_EXT:
250 case GL_TEXTURE_BUFFER:
253 case GL_TEXTURE_CUBE_MAP_ARB:
254 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
255 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
256 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
257 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
258 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
259 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
260 case GL_TEXTURE_RECTANGLE_NV:
261 case GL_TEXTURE_2D_ARRAY_EXT:
266 assert(0 && "invalid texture target in get_texture_dims()");
273 * Given the size of a mipmap image, try to compute the size of the level=0
276 * Note that this isn't always accurate for odd-sized, non-POW textures.
277 * For example, if level=1 and width=40 then the level=0 width may be 80 or 81.
279 * \return GL_TRUE for success, GL_FALSE for failure
282 guess_base_level_size(GLenum target,
283 GLuint width, GLuint height, GLuint depth, GLuint level,
284 GLuint *width0, GLuint *height0, GLuint *depth0)
286 const GLuint dims = get_texture_dims(target);
293 /* Depending on the image's size, we can't always make a guess here */
294 if ((dims >= 1 && width == 1) ||
295 (dims >= 2 && height == 1) ||
296 (dims >= 3 && depth == 1)) {
297 /* we can't determine the image size at level=0 */
301 /* grow the image size until we hit level = 0 */
322 * Try to allocate a pipe_resource object for the given st_texture_object.
324 * We use the given st_texture_image as a clue to determine the size of the
325 * mipmap image at level=0.
327 * \return GL_TRUE for success, GL_FALSE if out of memory.
330 guess_and_alloc_texture(struct st_context *st,
331 struct st_texture_object *stObj,
332 const struct st_texture_image *stImage)
334 GLuint lastLevel, width, height, depth;
336 GLuint ptWidth, ptHeight, ptDepth, ptLayers;
337 enum pipe_format fmt;
339 DBG("%s\n", __FUNCTION__);
343 if (!guess_base_level_size(stObj->base.Target,
344 stImage->base.Width2,
345 stImage->base.Height2,
346 stImage->base.Depth2,
348 &width, &height, &depth)) {
349 /* we can't determine the image size at level=0 */
350 stObj->width0 = stObj->height0 = stObj->depth0 = 0;
351 /* this is not an out of memory error */
355 /* At this point, (width x height x depth) is the expected size of
356 * the level=0 mipmap image.
359 /* Guess a reasonable value for lastLevel. With OpenGL we have no
360 * idea how many mipmap levels will be in a texture until we start
361 * to render with it. Make an educated guess here but be prepared
362 * to re-allocating a texture buffer with space for more (or fewer)
363 * mipmap levels later.
365 if ((stObj->base.Sampler.MinFilter == GL_NEAREST ||
366 stObj->base.Sampler.MinFilter == GL_LINEAR ||
367 stImage->base._BaseFormat == GL_DEPTH_COMPONENT ||
368 stImage->base._BaseFormat == GL_DEPTH_STENCIL_EXT) &&
369 !stObj->base.GenerateMipmap &&
370 stImage->level == 0) {
371 /* only alloc space for a single mipmap level */
375 /* alloc space for a full mipmap */
376 GLuint l2width = util_logbase2(width);
377 GLuint l2height = util_logbase2(height);
378 GLuint l2depth = util_logbase2(depth);
379 lastLevel = MAX2(MAX2(l2width, l2height), l2depth);
382 /* Save the level=0 dimensions */
383 stObj->width0 = width;
384 stObj->height0 = height;
385 stObj->depth0 = depth;
387 fmt = st_mesa_format_to_pipe_format(stImage->base.TexFormat);
389 bindings = default_bindings(st, fmt);
391 st_gl_texture_dims_to_pipe_dims(stObj->base.Target,
392 width, height, depth,
393 &ptWidth, &ptHeight, &ptDepth, &ptLayers);
395 stObj->pt = st_texture_create(st,
396 gl_target_to_pipe(stObj->base.Target),
405 DBG("%s returning %d\n", __FUNCTION__, (stObj->pt != NULL));
407 return stObj->pt != NULL;
412 * Adjust pixel unpack params and image dimensions to strip off the
414 * Gallium doesn't support texture borders. They've seldem been used
415 * and seldom been implemented correctly anyway.
416 * \param unpackNew returns the new pixel unpack parameters
419 strip_texture_border(GLint border,
420 GLint *width, GLint *height, GLint *depth,
421 const struct gl_pixelstore_attrib *unpack,
422 struct gl_pixelstore_attrib *unpackNew)
424 assert(border > 0); /* sanity check */
426 *unpackNew = *unpack;
428 if (unpackNew->RowLength == 0)
429 unpackNew->RowLength = *width;
431 if (depth && unpackNew->ImageHeight == 0)
432 unpackNew->ImageHeight = *height;
434 unpackNew->SkipPixels += border;
436 unpackNew->SkipRows += border;
438 unpackNew->SkipImages += border;
441 *width = *width - 2 * border;
442 if (height && *height >= 3)
443 *height = *height - 2 * border;
444 if (depth && *depth >= 3)
445 *depth = *depth - 2 * border;
450 * Do glTexImage1/2/3D().
453 st_TexImage(struct gl_context * ctx,
455 GLenum target, GLint level,
456 GLint internalFormat,
457 GLint width, GLint height, GLint depth,
459 GLenum format, GLenum type, const void *pixels,
460 const struct gl_pixelstore_attrib *unpack,
461 struct gl_texture_object *texObj,
462 struct gl_texture_image *texImage,
463 GLsizei imageSize, GLboolean compressed_src)
465 struct st_context *st = st_context(ctx);
466 struct st_texture_object *stObj = st_texture_object(texObj);
467 struct st_texture_image *stImage = st_texture_image(texImage);
468 GLuint dstRowStride = 0;
469 struct gl_pixelstore_attrib unpackNB;
470 enum pipe_transfer_usage transfer_usage = 0;
472 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__,
473 _mesa_lookup_enum_by_nr(target), level, width, height, depth, border);
475 /* switch to "normal" */
476 if (stObj->surface_based) {
479 _mesa_clear_texture_object(ctx, texObj);
480 pipe_resource_reference(&stObj->pt, NULL);
482 /* oops, need to init this image again */
483 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
484 internalFormat, format, type);
486 _mesa_init_teximage_fields(ctx, target, texImage,
487 width, height, depth, border,
488 internalFormat, texFormat);
490 stObj->surface_based = GL_FALSE;
493 /* gallium does not support texture borders, strip it off */
495 strip_texture_border(border, &width, &height, &depth, unpack, &unpackNB);
497 texImage->Width = width;
498 texImage->Height = height;
499 texImage->Depth = depth;
500 texImage->Border = 0;
504 assert(texImage->Width == width);
505 assert(texImage->Height == height);
506 assert(texImage->Depth == depth);
509 stImage->face = _mesa_tex_target_to_face(target);
510 stImage->level = level;
512 _mesa_set_fetch_functions(texImage, dims);
514 /* Release the reference to a potentially orphaned buffer.
515 * Release any old malloced memory.
518 pipe_resource_reference(&stImage->pt, NULL);
519 assert(!texImage->Data);
521 else if (texImage->Data) {
522 _mesa_align_free(texImage->Data);
526 * See if the new image is somehow incompatible with the existing
527 * mipmap. If so, free the old mipmap.
530 if (level > (GLint) stObj->pt->last_level ||
531 !st_texture_match_image(stObj->pt, &stImage->base,
532 stImage->face, stImage->level)) {
534 pipe_resource_reference(&stObj->pt, NULL);
536 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
540 if (width == 0 || height == 0 || depth == 0) {
541 /* stop after freeing old image */
546 if (!guess_and_alloc_texture(st, stObj, stImage)) {
547 /* Probably out of memory.
548 * Try flushing any pending rendering, then retry.
551 if (!guess_and_alloc_texture(st, stObj, stImage)) {
552 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
558 assert(!stImage->pt);
560 /* Check if this texture image can live inside the texture object's buffer.
561 * If so, store the image there. Otherwise the image will temporarily live
565 st_texture_match_image(stObj->pt, &stImage->base,
566 stImage->face, stImage->level)) {
568 pipe_resource_reference(&stImage->pt, stObj->pt);
573 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
575 /* Pixel data may come from regular user memory or a PBO. For the later,
576 * do bounds checking and map the PBO to read pixels data from it.
578 * XXX we should try to use a GPU-accelerated path to copy the image data
579 * from the PBO to the texture.
581 if (compressed_src) {
582 pixels = _mesa_validate_pbo_compressed_teximage(ctx, imageSize, pixels,
584 "glCompressedTexImage");
587 pixels = _mesa_validate_pbo_teximage(ctx, dims, width, height, 1,
589 pixels, unpack, "glTexImage");
592 /* for a 1D array upload the image as a series of layer with height = 1 */
593 if (target == GL_TEXTURE_1D_ARRAY) {
599 * Prepare to store the texture data. Either map the gallium texture buffer
600 * memory or malloc space for it.
604 /* We've allocated texture resource, but have no pixel data - all done. */
608 /* Store the image in the gallium transfer object */
609 if (format == GL_DEPTH_COMPONENT &&
610 util_format_is_depth_and_stencil(stImage->pt->format))
611 transfer_usage = PIPE_TRANSFER_READ_WRITE;
613 transfer_usage = PIPE_TRANSFER_WRITE;
615 texImage->Data = st_texture_image_map(st, stImage, 0,
616 transfer_usage, 0, 0, width, height);
617 if(stImage->transfer)
618 dstRowStride = stImage->transfer->stride;
621 /* Allocate regular memory and store the image there temporarily. */
622 GLuint imageSize = _mesa_format_image_size(texImage->TexFormat,
623 width, height, depth);
624 dstRowStride = _mesa_format_row_stride(texImage->TexFormat, width);
626 texImage->Data = _mesa_align_malloc(imageSize, 16);
629 if (!texImage->Data) {
630 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
635 /* We've allocated texture memory, but have no pixel data - all done. */
639 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
640 width, height, depth, width, dstRowStride);
642 /* Copy user texture image into the texture buffer.
644 if (compressed_src) {
645 const GLuint srcRowStride =
646 _mesa_format_row_stride(texImage->TexFormat, width);
647 if (dstRowStride == srcRowStride) {
648 memcpy(texImage->Data, pixels, imageSize);
651 char *dst = texImage->Data;
652 const char *src = pixels;
653 GLuint i, bw, bh, lines;
654 _mesa_get_format_block_size(texImage->TexFormat, &bw, &bh);
655 lines = (height + bh - 1) / bh;
657 for (i = 0; i < lines; ++i) {
658 memcpy(dst, src, srcRowStride);
665 const GLuint srcImageStride =
666 _mesa_image_image_stride(unpack, width, height, format, type);
668 const GLubyte *src = (const GLubyte *) pixels;
670 for (i = 0; i < depth; i++) {
671 if (!_mesa_texstore(ctx, dims,
672 texImage->_BaseFormat,
675 0, 0, 0, /* dstX/Y/Zoffset */
677 texImage->ImageOffsets,
679 format, type, src, unpack)) {
680 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
683 if (stImage->pt && i + 1 < depth) {
684 /* unmap this slice */
685 st_texture_image_unmap(st, stImage);
686 /* map next slice of 3D texture */
687 texImage->Data = st_texture_image_map(st, stImage, i + 1,
688 transfer_usage, 0, 0,
690 src += srcImageStride;
696 _mesa_unmap_teximage_pbo(ctx, unpack);
698 if (stImage->pt && texImage->Data) {
699 st_texture_image_unmap(st, stImage);
700 texImage->Data = NULL;
706 st_TexImage3D(struct gl_context * ctx,
707 GLenum target, GLint level,
708 GLint internalFormat,
709 GLint width, GLint height, GLint depth,
711 GLenum format, GLenum type, const void *pixels,
712 const struct gl_pixelstore_attrib *unpack,
713 struct gl_texture_object *texObj,
714 struct gl_texture_image *texImage)
716 st_TexImage(ctx, 3, target, level, internalFormat, width, height, depth,
717 border, format, type, pixels, unpack, texObj, texImage,
723 st_TexImage2D(struct gl_context * ctx,
724 GLenum target, GLint level,
725 GLint internalFormat,
726 GLint width, GLint height, GLint border,
727 GLenum format, GLenum type, const void *pixels,
728 const struct gl_pixelstore_attrib *unpack,
729 struct gl_texture_object *texObj,
730 struct gl_texture_image *texImage)
732 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border,
733 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
738 st_TexImage1D(struct gl_context * ctx,
739 GLenum target, GLint level,
740 GLint internalFormat,
741 GLint width, GLint border,
742 GLenum format, GLenum type, const void *pixels,
743 const struct gl_pixelstore_attrib *unpack,
744 struct gl_texture_object *texObj,
745 struct gl_texture_image *texImage)
747 st_TexImage(ctx, 1, target, level, internalFormat, width, 1, 1, border,
748 format, type, pixels, unpack, texObj, texImage, 0, GL_FALSE);
753 st_CompressedTexImage2D(struct gl_context *ctx, GLenum target, GLint level,
754 GLint internalFormat,
755 GLint width, GLint height, GLint border,
756 GLsizei imageSize, const GLvoid *data,
757 struct gl_texture_object *texObj,
758 struct gl_texture_image *texImage)
760 st_TexImage(ctx, 2, target, level, internalFormat, width, height, 1, border,
761 0, 0, data, &ctx->Unpack, texObj, texImage, imageSize, GL_TRUE);
767 * glGetTexImage() helper: decompress a compressed texture by rendering
768 * a textured quad. Store the results in the user's buffer.
771 decompress_with_blit(struct gl_context * ctx, GLenum target, GLint level,
772 GLenum format, GLenum type, GLvoid *pixels,
773 struct gl_texture_object *texObj,
774 struct gl_texture_image *texImage)
776 struct st_context *st = st_context(ctx);
777 struct pipe_context *pipe = st->pipe;
778 struct st_texture_image *stImage = st_texture_image(texImage);
779 struct st_texture_object *stObj = st_texture_object(texObj);
780 struct pipe_sampler_view *src_view =
781 st_get_texture_sampler_view(stObj, pipe);
782 const GLuint width = texImage->Width;
783 const GLuint height = texImage->Height;
784 struct pipe_surface *dst_surface;
785 struct pipe_resource *dst_texture;
786 struct pipe_transfer *tex_xfer;
787 unsigned bind = (PIPE_BIND_RENDER_TARGET | /* util_blit may choose to render */
788 PIPE_BIND_TRANSFER_READ);
790 /* create temp / dest surface */
791 if (!util_create_rgba_surface(pipe, width, height, bind,
792 &dst_texture, &dst_surface)) {
793 _mesa_problem(ctx, "util_create_rgba_surface() failed "
794 "in decompress_with_blit()");
798 /* Disable conditional rendering. */
799 if (st->render_condition) {
800 pipe->render_condition(pipe, NULL, 0);
803 /* blit/render/decompress */
804 util_blit_pixels_tex(st->blit,
805 src_view, /* pipe_resource (src) */
806 0, 0, /* src x0, y0 */
807 width, height, /* src x1, y1 */
808 dst_surface, /* pipe_surface (dst) */
809 0, 0, /* dst x0, y0 */
810 width, height, /* dst x1, y1 */
812 PIPE_TEX_MIPFILTER_NEAREST);
814 /* Restore conditional rendering state. */
815 if (st->render_condition) {
816 pipe->render_condition(pipe, st->render_condition,
820 /* map the dst_surface so we can read from it */
821 tex_xfer = pipe_get_transfer(pipe,
824 0, 0, width, height);
826 pixels = _mesa_map_pbo_dest(ctx, &ctx->Pack, pixels);
828 /* copy/pack data into user buffer */
829 if (st_equal_formats(stImage->pt->format, format, type)) {
831 const uint bytesPerRow = width * util_format_get_blocksize(stImage->pt->format);
832 ubyte *map = pipe_transfer_map(pipe, tex_xfer);
834 for (row = 0; row < height; row++) {
835 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
836 height, format, type, row, 0);
837 memcpy(dest, map, bytesPerRow);
838 map += tex_xfer->stride;
840 pipe_transfer_unmap(pipe, tex_xfer);
843 /* format translation via floats */
845 enum pipe_format pformat = util_format_linear(dst_texture->format);
846 for (row = 0; row < height; row++) {
847 const GLbitfield transferOps = 0x0; /* bypassed for glGetTexImage() */
848 GLfloat rgba[4 * MAX_WIDTH];
849 GLvoid *dest = _mesa_image_address2d(&ctx->Pack, pixels, width,
850 height, format, type, row, 0);
852 if (ST_DEBUG & DEBUG_FALLBACK)
853 debug_printf("%s: fallback format translation\n", __FUNCTION__);
855 /* get float[4] rgba row from surface */
856 pipe_get_tile_rgba_format(pipe, tex_xfer, 0, row, width, 1,
859 _mesa_pack_rgba_span_float(ctx, width, (GLfloat (*)[4]) rgba, format,
860 type, dest, &ctx->Pack, transferOps);
864 _mesa_unmap_pbo_dest(ctx, &ctx->Pack);
866 pipe->transfer_destroy(pipe, tex_xfer);
868 /* destroy the temp / dest surface */
869 util_destroy_rgba_surface(dst_texture, dst_surface);
875 * Need to map texture image into memory before copying image data,
879 st_get_tex_image(struct gl_context * ctx, GLenum target, GLint level,
880 GLenum format, GLenum type, GLvoid * pixels,
881 struct gl_texture_object *texObj,
882 struct gl_texture_image *texImage, GLboolean compressed_dst)
884 struct st_context *st = st_context(ctx);
885 struct st_texture_image *stImage = st_texture_image(texImage);
886 const GLuint dstImageStride =
887 _mesa_image_image_stride(&ctx->Pack, texImage->Width, texImage->Height,
893 util_format_is_s3tc(stImage->pt->format) &&
895 /* Need to decompress the texture.
896 * We'll do this by rendering a textured quad.
897 * Note that we only expect RGBA formats (no Z/depth formats).
899 decompress_with_blit(ctx, target, level, format, type, pixels,
906 /* Image is stored in hardware format in a buffer managed by the
907 * kernel. Need to explicitly map and unmap it.
909 texImage->Data = st_texture_image_map(st, stImage, 0,
910 PIPE_TRANSFER_READ, 0, 0,
912 stImage->base.Height);
913 /* compute stride in texels from stride in bytes */
914 texImage->RowStride = stImage->transfer->stride
915 * util_format_get_blockwidth(stImage->pt->format)
916 / util_format_get_blocksize(stImage->pt->format);
919 /* Otherwise, the image should actually be stored in
920 * texImage->Data. This is pretty confusing for
921 * everybody, I'd much prefer to separate the two functions of
922 * texImage->Data - storage for texture images in main memory
923 * and access (ie mappings) of images. In other words, we'd
924 * create a new texImage->Map field and leave Data simply for
927 assert(texImage->Data);
930 depth = texImage->Depth;
933 dest = (GLubyte *) pixels;
935 _mesa_set_fetch_functions(texImage, get_texture_dims(target));
937 for (i = 0; i < depth; i++) {
938 if (compressed_dst) {
939 _mesa_get_compressed_teximage(ctx, target, level, dest,
943 _mesa_get_teximage(ctx, target, level, format, type, dest,
947 if (stImage->pt && i + 1 < depth) {
948 /* unmap this slice */
949 st_texture_image_unmap(st, stImage);
950 /* map next slice of 3D texture */
951 texImage->Data = st_texture_image_map(st, stImage, i + 1,
952 PIPE_TRANSFER_READ, 0, 0,
954 stImage->base.Height);
955 dest += dstImageStride;
959 texImage->Depth = depth;
963 st_texture_image_unmap(st, stImage);
964 texImage->Data = NULL;
970 st_GetTexImage(struct gl_context * ctx, GLenum target, GLint level,
971 GLenum format, GLenum type, GLvoid * pixels,
972 struct gl_texture_object *texObj,
973 struct gl_texture_image *texImage)
975 st_get_tex_image(ctx, target, level, format, type, pixels, texObj, texImage,
981 st_GetCompressedTexImage(struct gl_context *ctx, GLenum target, GLint level,
983 struct gl_texture_object *texObj,
984 struct gl_texture_image *texImage)
986 st_get_tex_image(ctx, target, level, 0, 0, pixels, texObj, texImage,
993 st_TexSubimage(struct gl_context *ctx, GLint dims, GLenum target, GLint level,
994 GLint xoffset, GLint yoffset, GLint zoffset,
995 GLint width, GLint height, GLint depth,
996 GLenum format, GLenum type, const void *pixels,
997 const struct gl_pixelstore_attrib *packing,
998 struct gl_texture_object *texObj,
999 struct gl_texture_image *texImage)
1001 struct st_context *st = st_context(ctx);
1002 struct st_texture_image *stImage = st_texture_image(texImage);
1003 GLuint dstRowStride;
1004 const GLuint srcImageStride =
1005 _mesa_image_image_stride(packing, width, height, format, type);
1008 /* init to silence warning only: */
1009 enum pipe_transfer_usage transfer_usage = PIPE_TRANSFER_WRITE;
1011 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__,
1012 _mesa_lookup_enum_by_nr(target),
1013 level, xoffset, yoffset, width, height);
1016 _mesa_validate_pbo_teximage(ctx, dims, width, height, depth, format,
1017 type, pixels, packing, "glTexSubImage2D");
1021 /* for a 1D array upload the image as a series of layer with height = 1 */
1022 if (target == GL_TEXTURE_1D_ARRAY) {
1027 /* Map buffer if necessary. Need to lock to prevent other contexts
1028 * from uploading the buffer under us.
1031 if (format == GL_DEPTH_COMPONENT &&
1032 util_format_is_depth_and_stencil(stImage->pt->format))
1033 transfer_usage = PIPE_TRANSFER_READ_WRITE;
1035 transfer_usage = PIPE_TRANSFER_WRITE;
1037 texImage->Data = st_texture_image_map(st, stImage, zoffset,
1043 if (!texImage->Data) {
1044 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
1048 src = (const GLubyte *) pixels;
1049 dstRowStride = stImage->transfer->stride;
1051 for (i = 0; i < depth; i++) {
1052 if (!_mesa_texstore(ctx, dims, texImage->_BaseFormat,
1053 texImage->TexFormat,
1057 texImage->ImageOffsets,
1059 format, type, src, packing)) {
1060 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
1063 if (stImage->pt && i + 1 < depth) {
1064 /* unmap this slice */
1065 st_texture_image_unmap(st, stImage);
1066 /* map next slice of 3D texture */
1067 texImage->Data = st_texture_image_map(st, stImage,
1072 src += srcImageStride;
1077 _mesa_unmap_teximage_pbo(ctx, packing);
1079 if (stImage->pt && texImage->Data) {
1080 st_texture_image_unmap(st, stImage);
1081 texImage->Data = NULL;
1088 st_TexSubImage3D(struct gl_context *ctx, GLenum target, GLint level,
1089 GLint xoffset, GLint yoffset, GLint zoffset,
1090 GLsizei width, GLsizei height, GLsizei depth,
1091 GLenum format, GLenum type, const GLvoid *pixels,
1092 const struct gl_pixelstore_attrib *packing,
1093 struct gl_texture_object *texObj,
1094 struct gl_texture_image *texImage)
1096 st_TexSubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
1097 width, height, depth, format, type,
1098 pixels, packing, texObj, texImage);
1103 st_TexSubImage2D(struct gl_context *ctx, GLenum target, GLint level,
1104 GLint xoffset, GLint yoffset,
1105 GLsizei width, GLsizei height,
1106 GLenum format, GLenum type, const GLvoid * pixels,
1107 const struct gl_pixelstore_attrib *packing,
1108 struct gl_texture_object *texObj,
1109 struct gl_texture_image *texImage)
1111 st_TexSubimage(ctx, 2, target, level, xoffset, yoffset, 0,
1112 width, height, 1, format, type,
1113 pixels, packing, texObj, texImage);
1118 st_TexSubImage1D(struct gl_context *ctx, GLenum target, GLint level,
1119 GLint xoffset, GLsizei width, GLenum format, GLenum type,
1120 const GLvoid * pixels,
1121 const struct gl_pixelstore_attrib *packing,
1122 struct gl_texture_object *texObj,
1123 struct gl_texture_image *texImage)
1125 st_TexSubimage(ctx, 1, target, level, xoffset, 0, 0, width, 1, 1,
1126 format, type, pixels, packing, texObj, texImage);
1131 st_CompressedTexSubImage1D(struct gl_context *ctx, GLenum target, GLint level,
1132 GLint xoffset, GLsizei width,
1134 GLsizei imageSize, const GLvoid *data,
1135 struct gl_texture_object *texObj,
1136 struct gl_texture_image *texImage)
1143 st_CompressedTexSubImage2D(struct gl_context *ctx, GLenum target, GLint level,
1144 GLint xoffset, GLint yoffset,
1145 GLsizei width, GLint height,
1147 GLsizei imageSize, const GLvoid *data,
1148 struct gl_texture_object *texObj,
1149 struct gl_texture_image *texImage)
1151 struct st_context *st = st_context(ctx);
1152 struct st_texture_image *stImage = st_texture_image(texImage);
1156 enum pipe_format pformat;
1159 pformat = stImage->pt->format;
1161 texImage->Data = st_texture_image_map(st, stImage, 0,
1162 PIPE_TRANSFER_WRITE,
1166 srcBlockStride = util_format_get_stride(pformat, width);
1167 dstBlockStride = stImage->transfer->stride;
1169 assert(stImage->pt);
1170 /* TODO find good values for block and strides */
1171 /* TODO also adjust texImage->data for yoffset/xoffset */
1175 if (!texImage->Data) {
1176 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexSubImage");
1180 assert(xoffset % util_format_get_blockwidth(pformat) == 0);
1181 assert(yoffset % util_format_get_blockheight(pformat) == 0);
1183 for (y = 0; y < height; y += util_format_get_blockheight(pformat)) {
1184 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1185 const char *src = (const char*)data + srcBlockStride * util_format_get_nblocksy(pformat, y);
1186 char *dst = (char*)texImage->Data + dstBlockStride * util_format_get_nblocksy(pformat, y);
1187 memcpy(dst, src, util_format_get_stride(pformat, width));
1191 st_texture_image_unmap(st, stImage);
1192 texImage->Data = NULL;
1198 st_CompressedTexSubImage3D(struct gl_context *ctx, GLenum target, GLint level,
1199 GLint xoffset, GLint yoffset, GLint zoffset,
1200 GLsizei width, GLint height, GLint depth,
1202 GLsizei imageSize, const GLvoid *data,
1203 struct gl_texture_object *texObj,
1204 struct gl_texture_image *texImage)
1212 * Do a CopyTexSubImage operation using a read transfer from the source,
1213 * a write transfer to the destination and get_tile()/put_tile() to access
1214 * the pixels/texels.
1216 * Note: srcY=0=TOP of renderbuffer
1219 fallback_copy_texsubimage(struct gl_context *ctx, GLenum target, GLint level,
1220 struct st_renderbuffer *strb,
1221 struct st_texture_image *stImage,
1223 GLint destX, GLint destY, GLint destZ,
1224 GLint srcX, GLint srcY,
1225 GLsizei width, GLsizei height)
1227 struct st_context *st = st_context(ctx);
1228 struct pipe_context *pipe = st->pipe;
1229 struct pipe_transfer *src_trans;
1231 enum pipe_transfer_usage transfer_usage;
1233 if (ST_DEBUG & DEBUG_FALLBACK)
1234 debug_printf("%s: fallback processing\n", __FUNCTION__);
1236 assert(width <= MAX_WIDTH);
1238 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1239 srcY = strb->Base.Height - srcY - height;
1242 src_trans = pipe_get_transfer(pipe,
1245 strb->rtt_face + strb->rtt_slice,
1250 if ((baseFormat == GL_DEPTH_COMPONENT ||
1251 baseFormat == GL_DEPTH_STENCIL) &&
1252 util_format_is_depth_and_stencil(stImage->pt->format))
1253 transfer_usage = PIPE_TRANSFER_READ_WRITE;
1255 transfer_usage = PIPE_TRANSFER_WRITE;
1257 /* XXX this used to ignore destZ param */
1258 texDest = st_texture_image_map(st, stImage, destZ, transfer_usage,
1259 destX, destY, width, height);
1261 if (baseFormat == GL_DEPTH_COMPONENT ||
1262 baseFormat == GL_DEPTH_STENCIL) {
1263 const GLboolean scaleOrBias = (ctx->Pixel.DepthScale != 1.0F ||
1264 ctx->Pixel.DepthBias != 0.0F);
1267 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1268 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1277 /* To avoid a large temp memory allocation, do copy row by row */
1278 for (row = 0; row < height; row++, srcY += yStep) {
1279 uint data[MAX_WIDTH];
1280 pipe_get_tile_z(pipe, src_trans, 0, srcY, width, 1, data);
1282 _mesa_scale_and_bias_depth_uint(ctx, width, data);
1284 pipe_put_tile_z(pipe, stImage->transfer, 0, row, width, 1, data);
1290 (GLfloat *) malloc(width * height * 4 * sizeof(GLfloat));
1292 if (tempSrc && texDest) {
1293 const GLint dims = 2;
1294 const GLint dstRowStride = stImage->transfer->stride;
1295 struct gl_texture_image *texImage = &stImage->base;
1296 struct gl_pixelstore_attrib unpack = ctx->DefaultPacking;
1298 if (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP) {
1299 unpack.Invert = GL_TRUE;
1302 /* get float/RGBA image from framebuffer */
1303 /* XXX this usually involves a lot of int/float conversion.
1304 * try to avoid that someday.
1306 pipe_get_tile_rgba_format(pipe, src_trans, 0, 0, width, height,
1307 util_format_linear(strb->texture->format),
1310 /* Store into texture memory.
1311 * Note that this does some special things such as pixel transfer
1312 * ops and format conversion. In particular, if the dest tex format
1313 * is actually RGBA but the user created the texture as GL_RGB we
1314 * need to fill-in/override the alpha channel with 1.0.
1316 _mesa_texstore(ctx, dims,
1317 texImage->_BaseFormat,
1318 texImage->TexFormat,
1322 texImage->ImageOffsets,
1324 GL_RGBA, GL_FLOAT, tempSrc, /* src */
1328 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage");
1335 st_texture_image_unmap(st, stImage);
1336 pipe->transfer_destroy(pipe, src_trans);
1342 * If the format of the src renderbuffer and the format of the dest
1343 * texture are compatible (in terms of blitting), return a TGSI writemask
1344 * to be used during the blit.
1345 * If the src/dest are incompatible, return 0.
1348 compatible_src_dst_formats(struct gl_context *ctx,
1349 const struct gl_renderbuffer *src,
1350 const struct gl_texture_image *dst)
1352 /* Get logical base formats for the src and dest.
1353 * That is, use the user-requested formats and not the actual, device-
1355 * For example, the user may have requested an A8 texture but the
1356 * driver may actually be using an RGBA texture format. When we
1357 * copy/blit to that texture, we only want to copy the Alpha channel
1358 * and not the RGB channels.
1360 * Similarly, when the src FBO was created an RGB format may have been
1361 * requested but the driver actually chose an RGBA format. In that case,
1362 * we don't want to copy the undefined Alpha channel to the dest texture
1363 * (it should be 1.0).
1365 const GLenum srcFormat = _mesa_base_fbo_format(ctx, src->InternalFormat);
1366 const GLenum dstFormat = _mesa_base_tex_format(ctx, dst->InternalFormat);
1369 * XXX when we have red-only and red/green renderbuffers we'll need
1370 * to add more cases here (or implement a general-purpose routine that
1371 * queries the existance of the R,G,B,A channels in the src and dest).
1373 if (srcFormat == dstFormat) {
1374 /* This is the same as matching_base_formats, which should
1375 * always pass, as it did previously.
1377 return TGSI_WRITEMASK_XYZW;
1379 else if (srcFormat == GL_RGB && dstFormat == GL_RGBA) {
1380 /* Make sure that A in the dest is 1. The actual src format
1381 * may be RGBA and have undefined A values.
1383 return TGSI_WRITEMASK_XYZ;
1385 else if (srcFormat == GL_RGBA && dstFormat == GL_RGB) {
1386 /* Make sure that A in the dest is 1. The actual dst format
1387 * may be RGBA and will need A=1 to provide proper alpha values
1388 * when sampled later.
1390 return TGSI_WRITEMASK_XYZ;
1393 if (ST_DEBUG & DEBUG_FALLBACK)
1394 debug_printf("%s failed for src %s, dst %s\n",
1396 _mesa_lookup_enum_by_nr(srcFormat),
1397 _mesa_lookup_enum_by_nr(dstFormat));
1408 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1409 * Note that the region to copy has already been clipped so we know we
1410 * won't read from outside the source renderbuffer's bounds.
1412 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1415 st_copy_texsubimage(struct gl_context *ctx,
1416 GLenum target, GLint level,
1417 GLint destX, GLint destY, GLint destZ,
1418 GLint srcX, GLint srcY,
1419 GLsizei width, GLsizei height)
1421 struct gl_texture_unit *texUnit =
1422 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1423 struct gl_texture_object *texObj =
1424 _mesa_select_tex_object(ctx, texUnit, target);
1425 struct gl_texture_image *texImage =
1426 _mesa_select_tex_image(ctx, texObj, target, level);
1427 struct st_texture_image *stImage = st_texture_image(texImage);
1428 const GLenum texBaseFormat = texImage->_BaseFormat;
1429 struct gl_framebuffer *fb = ctx->ReadBuffer;
1430 struct st_renderbuffer *strb;
1431 struct st_context *st = st_context(ctx);
1432 struct pipe_context *pipe = st->pipe;
1433 struct pipe_screen *screen = pipe->screen;
1434 enum pipe_format dest_format, src_format;
1435 GLboolean use_fallback = GL_TRUE;
1436 GLboolean matching_base_formats;
1437 GLuint format_writemask, sample_count;
1438 struct pipe_surface *dest_surface = NULL;
1439 GLboolean do_flip = (st_fb_orientation(ctx->ReadBuffer) == Y_0_TOP);
1441 /* make sure finalize_textures has been called?
1443 if (0) st_validate_state(st);
1445 /* determine if copying depth or color data */
1446 if (texBaseFormat == GL_DEPTH_COMPONENT ||
1447 texBaseFormat == GL_DEPTH_STENCIL) {
1448 strb = st_renderbuffer(fb->_DepthBuffer);
1449 if (strb->Base.Wrapped) {
1450 strb = st_renderbuffer(strb->Base.Wrapped);
1454 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1455 strb = st_renderbuffer(fb->_ColorReadBuffer);
1458 if (!strb || !strb->surface || !stImage->pt) {
1459 debug_printf("%s: null strb or stImage\n", __FUNCTION__);
1463 sample_count = strb->surface->texture->nr_samples;
1464 /* I believe this would be legal, presumably would need to do a resolve
1465 for color, and for depth/stencil spec says to just use one of the
1466 depth/stencil samples per pixel? Need some transfer clarifications. */
1467 assert(sample_count < 2);
1493 if (width < 0 || height < 0)
1498 assert(strb->surface);
1499 assert(stImage->pt);
1501 src_format = strb->surface->format;
1502 dest_format = stImage->pt->format;
1505 * Determine if the src framebuffer and dest texture have the same
1506 * base format. We need this to detect a case such as the framebuffer
1507 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1508 * texture format stores RGBA we need to set A=1 (overriding the
1509 * framebuffer's alpha values). We can't do that with the blit or
1510 * textured-quad paths.
1512 matching_base_formats =
1513 (_mesa_get_format_base_format(strb->Base.Format) ==
1514 _mesa_get_format_base_format(texImage->TexFormat));
1515 format_writemask = compatible_src_dst_formats(ctx, &strb->Base, texImage);
1517 if (ctx->_ImageTransferState == 0x0) {
1519 if (matching_base_formats &&
1520 src_format == dest_format &&
1523 /* use surface_copy() / blit */
1524 struct pipe_box src_box;
1525 u_box_2d_zslice(srcX, srcY, strb->surface->u.tex.first_layer,
1526 width, height, &src_box);
1528 /* for resource_copy_region(), y=0=top, always */
1529 pipe->resource_copy_region(pipe,
1533 destX, destY, destZ + stImage->face,
1536 strb->surface->u.tex.level,
1538 use_fallback = GL_FALSE;
1540 else if (format_writemask &&
1541 texBaseFormat != GL_DEPTH_COMPONENT &&
1542 texBaseFormat != GL_DEPTH_STENCIL &&
1543 screen->is_format_supported(screen, src_format,
1544 PIPE_TEXTURE_2D, sample_count,
1545 PIPE_BIND_SAMPLER_VIEW) &&
1546 screen->is_format_supported(screen, dest_format,
1548 PIPE_BIND_RENDER_TARGET)) {
1549 /* draw textured quad to do the copy */
1551 struct pipe_surface surf_tmpl;
1552 memset(&surf_tmpl, 0, sizeof(surf_tmpl));
1553 surf_tmpl.format = util_format_linear(stImage->pt->format);
1554 surf_tmpl.usage = PIPE_BIND_RENDER_TARGET;
1555 surf_tmpl.u.tex.level = stImage->level;
1556 surf_tmpl.u.tex.first_layer = stImage->face + destZ;
1557 surf_tmpl.u.tex.last_layer = stImage->face + destZ;
1559 dest_surface = pipe->create_surface(pipe, stImage->pt,
1563 srcY1 = strb->Base.Height - srcY - height;
1564 srcY0 = srcY1 + height;
1568 srcY1 = srcY0 + height;
1571 /* Disable conditional rendering. */
1572 if (st->render_condition) {
1573 pipe->render_condition(pipe, NULL, 0);
1576 util_blit_pixels_writemask(st->blit,
1578 strb->surface->u.tex.level,
1580 srcX + width, srcY1,
1581 strb->surface->u.tex.first_layer,
1584 destX + width, destY + height,
1585 0.0, PIPE_TEX_MIPFILTER_NEAREST,
1588 /* Restore conditional rendering state. */
1589 if (st->render_condition) {
1590 pipe->render_condition(pipe, st->render_condition,
1591 st->condition_mode);
1594 use_fallback = GL_FALSE;
1598 pipe_surface_reference(&dest_surface, NULL);
1602 /* software fallback */
1603 fallback_copy_texsubimage(ctx, target, level,
1604 strb, stImage, texBaseFormat,
1605 destX, destY, destZ,
1606 srcX, srcY, width, height);
1613 st_CopyTexImage1D(struct gl_context * ctx, GLenum target, GLint level,
1614 GLenum internalFormat,
1615 GLint x, GLint y, GLsizei width, GLint border)
1617 struct gl_texture_unit *texUnit =
1618 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1619 struct gl_texture_object *texObj =
1620 _mesa_select_tex_object(ctx, texUnit, target);
1621 struct gl_texture_image *texImage =
1622 _mesa_select_tex_image(ctx, texObj, target, level);
1624 /* Setup or redefine the texture object, texture and texture
1625 * image. Don't populate yet.
1627 ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
1629 GL_RGBA, CHAN_TYPE, NULL,
1630 &ctx->DefaultPacking, texObj, texImage);
1632 st_copy_texsubimage(ctx, target, level,
1633 0, 0, 0, /* destX,Y,Z */
1634 x, y, width, 1); /* src X, Y, size */
1639 st_CopyTexImage2D(struct gl_context * ctx, GLenum target, GLint level,
1640 GLenum internalFormat,
1641 GLint x, GLint y, GLsizei width, GLsizei height,
1644 struct gl_texture_unit *texUnit =
1645 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1646 struct gl_texture_object *texObj =
1647 _mesa_select_tex_object(ctx, texUnit, target);
1648 struct gl_texture_image *texImage =
1649 _mesa_select_tex_image(ctx, texObj, target, level);
1651 /* Setup or redefine the texture object, texture and texture
1652 * image. Don't populate yet.
1654 ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
1655 width, height, border,
1656 GL_RGBA, CHAN_TYPE, NULL,
1657 &ctx->DefaultPacking, texObj, texImage);
1659 st_copy_texsubimage(ctx, target, level,
1660 0, 0, 0, /* destX,Y,Z */
1661 x, y, width, height); /* src X, Y, size */
1666 st_CopyTexSubImage1D(struct gl_context * ctx, GLenum target, GLint level,
1667 GLint xoffset, GLint x, GLint y, GLsizei width)
1669 const GLint yoffset = 0, zoffset = 0;
1670 const GLsizei height = 1;
1671 st_copy_texsubimage(ctx, target, level,
1672 xoffset, yoffset, zoffset, /* destX,Y,Z */
1673 x, y, width, height); /* src X, Y, size */
1678 st_CopyTexSubImage2D(struct gl_context * ctx, GLenum target, GLint level,
1679 GLint xoffset, GLint yoffset,
1680 GLint x, GLint y, GLsizei width, GLsizei height)
1682 const GLint zoffset = 0;
1683 st_copy_texsubimage(ctx, target, level,
1684 xoffset, yoffset, zoffset, /* destX,Y,Z */
1685 x, y, width, height); /* src X, Y, size */
1690 st_CopyTexSubImage3D(struct gl_context * ctx, GLenum target, GLint level,
1691 GLint xoffset, GLint yoffset, GLint zoffset,
1692 GLint x, GLint y, GLsizei width, GLsizei height)
1694 st_copy_texsubimage(ctx, target, level,
1695 xoffset, yoffset, zoffset, /* destX,Y,Z */
1696 x, y, width, height); /* src X, Y, size */
1701 * Copy image data from stImage into the texture object 'stObj' at level
1705 copy_image_data_to_texture(struct st_context *st,
1706 struct st_texture_object *stObj,
1708 struct st_texture_image *stImage)
1712 const struct gl_texture_image *dstImage =
1713 stObj->base.Image[stImage->face][dstLevel];
1715 assert(dstImage->Width == stImage->base.Width);
1716 assert(dstImage->Height == stImage->base.Height);
1717 assert(dstImage->Depth == stImage->base.Depth);
1721 /* Copy potentially with the blitter:
1723 st_texture_image_copy(st->pipe,
1724 stObj->pt, dstLevel, /* dest texture, level */
1725 stImage->pt, stImage->level, /* src texture, level */
1728 pipe_resource_reference(&stImage->pt, NULL);
1730 else if (stImage->base.Data) {
1731 st_texture_image_data(st,
1736 stImage->base.RowStride *
1737 util_format_get_blocksize(stObj->pt->format),
1738 stImage->base.RowStride *
1739 stImage->base.Height *
1740 util_format_get_blocksize(stObj->pt->format));
1741 _mesa_align_free(stImage->base.Data);
1742 stImage->base.Data = NULL;
1745 pipe_resource_reference(&stImage->pt, stObj->pt);
1750 * Called during state validation. When this function is finished,
1751 * the texture object should be ready for rendering.
1752 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1755 st_finalize_texture(struct gl_context *ctx,
1756 struct pipe_context *pipe,
1757 struct gl_texture_object *tObj)
1759 struct st_context *st = st_context(ctx);
1760 struct st_texture_object *stObj = st_texture_object(tObj);
1761 const GLuint nr_faces = (stObj->base.Target == GL_TEXTURE_CUBE_MAP) ? 6 : 1;
1763 struct st_texture_image *firstImage;
1764 enum pipe_format firstImageFormat;
1765 GLuint ptWidth, ptHeight, ptDepth, ptLayers;
1767 if (stObj->base._Complete) {
1768 /* The texture is complete and we know exactly how many mipmap levels
1769 * are present/needed. This is conditional because we may be called
1770 * from the st_generate_mipmap() function when the texture object is
1771 * incomplete. In that case, we'll have set stObj->lastLevel before
1774 if (stObj->base.Sampler.MinFilter == GL_LINEAR ||
1775 stObj->base.Sampler.MinFilter == GL_NEAREST)
1776 stObj->lastLevel = stObj->base.BaseLevel;
1778 stObj->lastLevel = stObj->base._MaxLevel;
1781 firstImage = st_texture_image(stObj->base.Image[0][stObj->base.BaseLevel]);
1784 /* If both firstImage and stObj point to a texture which can contain
1785 * all active images, favour firstImage. Note that because of the
1786 * completeness requirement, we know that the image dimensions
1789 if (firstImage->pt &&
1790 firstImage->pt != stObj->pt &&
1791 (!stObj->pt || firstImage->pt->last_level >= stObj->pt->last_level)) {
1792 pipe_resource_reference(&stObj->pt, firstImage->pt);
1793 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
1796 /* Find gallium format for the Mesa texture */
1797 firstImageFormat = st_mesa_format_to_pipe_format(firstImage->base.TexFormat);
1799 /* Find size of level=0 Gallium mipmap image, plus number of texture layers */
1801 GLuint width, height, depth;
1802 if (!guess_base_level_size(stObj->base.Target,
1803 firstImage->base.Width2,
1804 firstImage->base.Height2,
1805 firstImage->base.Depth2,
1806 stObj->base.BaseLevel,
1807 &width, &height, &depth)) {
1808 width = stObj->width0;
1809 height = stObj->height0;
1810 depth = stObj->depth0;
1812 /* convert GL dims to Gallium dims */
1813 st_gl_texture_dims_to_pipe_dims(stObj->base.Target, width, height, depth,
1814 &ptWidth, &ptHeight, &ptDepth, &ptLayers);
1817 /* If we already have a gallium texture, check that it matches the texture
1818 * object's format, target, size, num_levels, etc.
1821 if (stObj->pt->target != gl_target_to_pipe(stObj->base.Target) ||
1822 !st_sampler_compat_formats(stObj->pt->format, firstImageFormat) ||
1823 stObj->pt->last_level < stObj->lastLevel ||
1824 stObj->pt->width0 != ptWidth ||
1825 stObj->pt->height0 != ptHeight ||
1826 stObj->pt->depth0 != ptDepth ||
1827 stObj->pt->array_size != ptLayers)
1829 /* The gallium texture does not match the Mesa texture so delete the
1830 * gallium texture now. We'll make a new one below.
1832 pipe_resource_reference(&stObj->pt, NULL);
1833 pipe_sampler_view_reference(&stObj->sampler_view, NULL);
1834 st->dirty.st |= ST_NEW_FRAMEBUFFER;
1838 /* May need to create a new gallium texture:
1841 GLuint bindings = default_bindings(st, firstImageFormat);
1843 stObj->pt = st_texture_create(st,
1844 gl_target_to_pipe(stObj->base.Target),
1854 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage");
1859 /* Pull in any images not in the object's texture:
1861 for (face = 0; face < nr_faces; face++) {
1863 for (level = stObj->base.BaseLevel; level <= stObj->lastLevel; level++) {
1864 struct st_texture_image *stImage =
1865 st_texture_image(stObj->base.Image[face][level]);
1867 /* Need to import images in main memory or held in other textures.
1869 if (stImage && stObj->pt != stImage->pt) {
1870 if (level == 0 || (stImage->base.Width == u_minify(stObj->width0, level) &&
1871 stImage->base.Height == u_minify(stObj->height0, level) &&
1872 stImage->base.Depth == u_minify(stObj->depth0, level))) {
1873 /* src image fits expected dest mipmap level size */
1874 copy_image_data_to_texture(st, stObj, level, stImage);
1885 * Returns pointer to a default/dummy texture.
1886 * This is typically used when the current shader has tex/sample instructions
1887 * but the user has not provided a (any) texture(s).
1889 struct gl_texture_object *
1890 st_get_default_texture(struct st_context *st)
1892 if (!st->default_texture) {
1893 static const GLenum target = GL_TEXTURE_2D;
1894 GLubyte pixels[16][16][4];
1895 struct gl_texture_object *texObj;
1896 struct gl_texture_image *texImg;
1899 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1900 * when attempting to sample incomplete textures.
1902 for (i = 0; i < 16; i++) {
1903 for (j = 0; j < 16; j++) {
1904 pixels[i][j][0] = 0;
1905 pixels[i][j][1] = 0;
1906 pixels[i][j][2] = 0;
1907 pixels[i][j][3] = 255;
1911 texObj = st->ctx->Driver.NewTextureObject(st->ctx, 0, target);
1913 texImg = _mesa_get_tex_image(st->ctx, texObj, target, 0);
1915 _mesa_init_teximage_fields(st->ctx, target, texImg,
1916 16, 16, 1, 0, /* w, h, d, border */
1917 GL_RGBA, MESA_FORMAT_RGBA8888);
1919 st_TexImage(st->ctx, 2, target,
1920 0, GL_RGBA, /* level, intformat */
1921 16, 16, 1, 0, /* w, h, d, border */
1922 GL_RGBA, GL_UNSIGNED_BYTE, pixels,
1923 &st->ctx->DefaultPacking,
1927 texObj->Sampler.MinFilter = GL_NEAREST;
1928 texObj->Sampler.MagFilter = GL_NEAREST;
1929 texObj->_Complete = GL_TRUE;
1931 st->default_texture = texObj;
1933 return st->default_texture;
1938 st_init_texture_functions(struct dd_function_table *functions)
1940 functions->ChooseTextureFormat = st_ChooseTextureFormat;
1941 functions->TexImage1D = st_TexImage1D;
1942 functions->TexImage2D = st_TexImage2D;
1943 functions->TexImage3D = st_TexImage3D;
1944 functions->TexSubImage1D = st_TexSubImage1D;
1945 functions->TexSubImage2D = st_TexSubImage2D;
1946 functions->TexSubImage3D = st_TexSubImage3D;
1947 functions->CompressedTexSubImage1D = st_CompressedTexSubImage1D;
1948 functions->CompressedTexSubImage2D = st_CompressedTexSubImage2D;
1949 functions->CompressedTexSubImage3D = st_CompressedTexSubImage3D;
1950 functions->CopyTexImage1D = st_CopyTexImage1D;
1951 functions->CopyTexImage2D = st_CopyTexImage2D;
1952 functions->CopyTexSubImage1D = st_CopyTexSubImage1D;
1953 functions->CopyTexSubImage2D = st_CopyTexSubImage2D;
1954 functions->CopyTexSubImage3D = st_CopyTexSubImage3D;
1955 functions->GenerateMipmap = st_generate_mipmap;
1957 functions->GetTexImage = st_GetTexImage;
1959 /* compressed texture functions */
1960 functions->CompressedTexImage2D = st_CompressedTexImage2D;
1961 functions->GetCompressedTexImage = st_GetCompressedTexImage;
1963 functions->NewTextureObject = st_NewTextureObject;
1964 functions->NewTextureImage = st_NewTextureImage;
1965 functions->DeleteTexture = st_DeleteTextureObject;
1966 functions->FreeTexImageData = st_FreeTextureImageData;
1968 functions->TextureMemCpy = do_memcpy;
1970 /* XXX Temporary until we can query pipe's texture sizes */
1971 functions->TestProxyTexImage = _mesa_test_proxy_teximage;