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/formats.h"
35 #include "main/image.h"
36 #include "main/imports.h"
37 #include "main/macros.h"
38 #include "main/mipmap.h"
39 #include "main/texcompress.h"
40 #include "main/texfetch.h"
41 #include "main/texgetimage.h"
42 #include "main/teximage.h"
43 #include "main/texobj.h"
44 #include "main/texstore.h"
46 #include "state_tracker/st_debug.h"
47 #include "state_tracker/st_context.h"
48 #include "state_tracker/st_cb_fbo.h"
49 #include "state_tracker/st_cb_texture.h"
50 #include "state_tracker/st_format.h"
51 #include "state_tracker/st_public.h"
52 #include "state_tracker/st_texture.h"
53 #include "state_tracker/st_gen_mipmap.h"
54 #include "state_tracker/st_inlines.h"
55 #include "state_tracker/st_atom.h"
57 #include "pipe/p_context.h"
58 #include "pipe/p_defines.h"
59 #include "pipe/p_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_surface.h"
64 #include "util/u_math.h"
67 #define DBG if (0) printf
70 static enum pipe_texture_target
71 gl_target_to_pipe(GLenum target
)
75 return PIPE_TEXTURE_1D
;
78 case GL_TEXTURE_RECTANGLE_NV
:
79 return PIPE_TEXTURE_2D
;
82 return PIPE_TEXTURE_3D
;
84 case GL_TEXTURE_CUBE_MAP_ARB
:
85 return PIPE_TEXTURE_CUBE
;
94 /** called via ctx->Driver.NewTextureImage() */
95 static struct gl_texture_image
*
96 st_NewTextureImage(GLcontext
* ctx
)
98 DBG("%s\n", __FUNCTION__
);
100 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
104 /** called via ctx->Driver.NewTextureObject() */
105 static struct gl_texture_object
*
106 st_NewTextureObject(GLcontext
* ctx
, GLuint name
, GLenum target
)
108 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
110 DBG("%s\n", __FUNCTION__
);
111 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
116 /** called via ctx->Driver.DeleteTextureImage() */
118 st_DeleteTextureObject(GLcontext
*ctx
,
119 struct gl_texture_object
*texObj
)
121 struct st_texture_object
*stObj
= st_texture_object(texObj
);
123 pipe_texture_reference(&stObj
->pt
, NULL
);
125 _mesa_delete_texture_object(ctx
, texObj
);
129 /** called via ctx->Driver.FreeTexImageData() */
131 st_FreeTextureImageData(GLcontext
* ctx
, struct gl_texture_image
*texImage
)
133 struct st_texture_image
*stImage
= st_texture_image(texImage
);
135 DBG("%s\n", __FUNCTION__
);
138 pipe_texture_reference(&stImage
->pt
, NULL
);
141 if (texImage
->Data
) {
142 _mesa_align_free(texImage
->Data
);
143 texImage
->Data
= NULL
;
149 * From linux kernel i386 header files, copes with odd sizes better
150 * than COPY_DWORDS would:
151 * XXX Put this in src/mesa/main/imports.h ???
153 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
155 __memcpy(void *to
, const void *from
, size_t n
)
158 __asm__
__volatile__("rep ; movsl\n\t"
162 "1:\ttestb $1,%b4\n\t"
164 "movsb\n" "2:":"=&c"(d0
), "=&D"(d1
), "=&S"(d2
)
165 :"0"(n
/ 4), "q"(n
), "1"((long) to
), "2"((long) from
)
170 #define __memcpy(a,b,c) memcpy(a,b,c)
175 * The system memcpy (at least on ubuntu 5.10) has problems copying
176 * to agp (writecombined) memory from a source which isn't 64-byte
177 * aligned - there is a 4x performance falloff.
179 * The x86 __memcpy is immune to this but is slightly slower
180 * (10%-ish) than the system memcpy.
182 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
183 * isn't much faster than x86_memcpy for agp copies.
185 * TODO: switch dynamically.
188 do_memcpy(void *dest
, const void *src
, size_t n
)
190 if ((((unsigned long) src
) & 63) || (((unsigned long) dest
) & 63)) {
191 return __memcpy(dest
, src
, n
);
194 return memcpy(dest
, src
, n
);
199 * Return default texture usage bitmask for the given texture format.
202 default_usage(enum pipe_format fmt
)
204 GLuint usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
205 if (pf_is_depth_stencil(fmt
))
206 usage
|= PIPE_TEXTURE_USAGE_DEPTH_STENCIL
;
208 usage
|= PIPE_TEXTURE_USAGE_RENDER_TARGET
;
214 * Allocate a pipe_texture object for the given st_texture_object using
215 * the given st_texture_image to guess the mipmap size/levels.
218 * Otherwise, store it in memory if (Border != 0) or (any dimension ==
221 * Otherwise, if max_level >= level >= min_level, create texture with
222 * space for images from min_level down to max_level.
224 * Otherwise, create texture with space for images from (level 0)..(1x1).
225 * Consider pruning this texture at a validation if the saving is worth it.
228 guess_and_alloc_texture(struct st_context
*st
,
229 struct st_texture_object
*stObj
,
230 const struct st_texture_image
*stImage
)
234 GLuint width
= stImage
->base
.Width2
; /* size w/out border */
235 GLuint height
= stImage
->base
.Height2
;
236 GLuint depth
= stImage
->base
.Depth2
;
238 enum pipe_format fmt
;
240 DBG("%s\n", __FUNCTION__
);
245 (GLint
) stImage
->level
> stObj
->base
.BaseLevel
&&
246 (stImage
->base
.Width
== 1 ||
247 (stObj
->base
.Target
!= GL_TEXTURE_1D
&&
248 stImage
->base
.Height
== 1) ||
249 (stObj
->base
.Target
== GL_TEXTURE_3D
&&
250 stImage
->base
.Depth
== 1)))
253 /* If this image disrespects BaseLevel, allocate from level zero.
254 * Usually BaseLevel == 0, so it's unlikely to happen.
256 if ((GLint
) stImage
->level
< stObj
->base
.BaseLevel
)
259 firstLevel
= stObj
->base
.BaseLevel
;
262 /* Figure out image dimensions at start level.
264 for (i
= stImage
->level
; i
> firstLevel
; i
--) {
273 if (width
== 0 || height
== 0 || depth
== 0) {
274 /* no texture needed */
278 /* Guess a reasonable value for lastLevel. This is probably going
279 * to be wrong fairly often and might mean that we have to look at
280 * resizable buffers, or require that buffers implement lazy
281 * pagetable arrangements.
283 if ((stObj
->base
.MinFilter
== GL_NEAREST
||
284 stObj
->base
.MinFilter
== GL_LINEAR
||
285 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
286 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
287 !stObj
->base
.GenerateMipmap
&&
288 stImage
->level
== firstLevel
) {
289 /* only alloc space for a single mipmap level */
290 lastLevel
= firstLevel
;
293 /* alloc space for a full mipmap */
294 GLuint l2width
= util_logbase2(width
);
295 GLuint l2height
= util_logbase2(height
);
296 GLuint l2depth
= util_logbase2(depth
);
297 lastLevel
= firstLevel
+ MAX2(MAX2(l2width
, l2height
), l2depth
);
300 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
);
302 usage
= default_usage(fmt
);
304 stObj
->pt
= st_texture_create(st
,
305 gl_target_to_pipe(stObj
->base
.Target
),
313 DBG("%s - success\n", __FUNCTION__
);
318 * Adjust pixel unpack params and image dimensions to strip off the
320 * Gallium doesn't support texture borders. They've seldem been used
321 * and seldom been implemented correctly anyway.
322 * \param unpackNew returns the new pixel unpack parameters
325 strip_texture_border(GLint border
,
326 GLint
*width
, GLint
*height
, GLint
*depth
,
327 const struct gl_pixelstore_attrib
*unpack
,
328 struct gl_pixelstore_attrib
*unpackNew
)
330 assert(border
> 0); /* sanity check */
332 *unpackNew
= *unpack
;
334 if (unpackNew
->RowLength
== 0)
335 unpackNew
->RowLength
= *width
;
337 if (depth
&& unpackNew
->ImageHeight
== 0)
338 unpackNew
->ImageHeight
= *height
;
340 unpackNew
->SkipPixels
+= border
;
342 unpackNew
->SkipRows
+= border
;
344 unpackNew
->SkipImages
+= border
;
347 *width
= *width
- 2 * border
;
348 if (height
&& *height
>= 3)
349 *height
= *height
- 2 * border
;
350 if (depth
&& *depth
>= 3)
351 *depth
= *depth
- 2 * border
;
356 * Try to do texture compression via rendering. If the Gallium driver
357 * can render into a compressed surface this will allow us to do texture
359 * \return GL_TRUE for success, GL_FALSE for failure
362 compress_with_blit(GLcontext
* ctx
,
363 GLenum target
, GLint level
,
364 GLint xoffset
, GLint yoffset
, GLint zoffset
,
365 GLint width
, GLint height
, GLint depth
,
366 GLenum format
, GLenum type
, const void *pixels
,
367 const struct gl_pixelstore_attrib
*unpack
,
368 struct gl_texture_image
*texImage
)
370 const GLuint dstImageOffsets
[1] = {0};
371 struct st_texture_image
*stImage
= st_texture_image(texImage
);
372 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
373 gl_format mesa_format
;
374 struct pipe_texture templ
;
375 struct pipe_texture
*src_tex
;
376 struct pipe_surface
*dst_surface
;
377 struct pipe_transfer
*tex_xfer
;
381 /* XXX: Can this happen? Should we assert? */
385 /* get destination surface (in the compressed texture) */
386 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
387 stImage
->face
, stImage
->level
, 0,
388 PIPE_BUFFER_USAGE_GPU_WRITE
);
390 /* can't render into this format (or other problem) */
394 /* Choose format for the temporary RGBA texture image.
396 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
401 /* Create the temporary source texture
403 memset(&templ
, 0, sizeof(templ
));
404 templ
.target
= PIPE_TEXTURE_2D
;
405 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
);
406 pf_get_block(templ
.format
, &templ
.block
);
407 templ
.width
[0] = width
;
408 templ
.height
[0] = height
;
410 templ
.last_level
= 0;
411 templ
.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
412 src_tex
= screen
->texture_create(screen
, &templ
);
417 /* Put user's tex data into the temporary texture
419 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
420 0, 0, 0, /* face, level are zero */
422 0, 0, width
, height
); /* x, y, w, h */
423 map
= screen
->transfer_map(screen
, tex_xfer
);
425 _mesa_texstore(ctx
, 2, GL_RGBA
, mesa_format
,
427 0, 0, 0, /* dest x/y/z offset */
428 tex_xfer
->stride
, /* dest row stride (bytes) */
429 dstImageOffsets
, /* image offsets (for 3D only) */
430 width
, height
, 1, /* size */
431 format
, type
, /* source format/type */
432 pixels
, /* source data */
433 unpack
); /* source data packing */
435 screen
->transfer_unmap(screen
, tex_xfer
);
436 screen
->tex_transfer_destroy(tex_xfer
);
438 /* copy / compress image */
439 util_blit_pixels_tex(ctx
->st
->blit
,
440 src_tex
, /* pipe_texture (src) */
441 0, 0, /* src x0, y0 */
442 width
, height
, /* src x1, y1 */
443 dst_surface
, /* pipe_surface (dst) */
444 xoffset
, yoffset
, /* dst x0, y0 */
445 xoffset
+ width
, /* dst x1 */
446 yoffset
+ height
, /* dst y1 */
448 PIPE_TEX_MIPFILTER_NEAREST
);
450 pipe_surface_reference(&dst_surface
, NULL
);
451 pipe_texture_reference(&src_tex
, NULL
);
458 * Do glTexImage1/2/3D().
461 st_TexImage(GLcontext
* ctx
,
463 GLenum target
, GLint level
,
464 GLint internalFormat
,
465 GLint width
, GLint height
, GLint depth
,
467 GLenum format
, GLenum type
, const void *pixels
,
468 const struct gl_pixelstore_attrib
*unpack
,
469 struct gl_texture_object
*texObj
,
470 struct gl_texture_image
*texImage
,
471 GLsizei imageSize
, GLboolean compressed_src
)
473 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
474 struct st_texture_object
*stObj
= st_texture_object(texObj
);
475 struct st_texture_image
*stImage
= st_texture_image(texImage
);
476 GLint postConvWidth
, postConvHeight
;
477 GLint texelBytes
, sizeInBytes
;
478 GLuint dstRowStride
= 0;
479 struct gl_pixelstore_attrib unpackNB
;
480 enum pipe_transfer_usage transfer_usage
= 0;
482 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
483 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
485 /* switch to "normal" */
486 if (stObj
->surface_based
) {
487 _mesa_clear_texture_object(ctx
, texObj
);
488 stObj
->surface_based
= GL_FALSE
;
491 /* gallium does not support texture borders, strip it off */
493 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
495 texImage
->Width
= width
;
496 texImage
->Height
= height
;
497 texImage
->Depth
= depth
;
498 texImage
->Border
= 0;
502 postConvWidth
= width
;
503 postConvHeight
= height
;
505 stImage
->face
= _mesa_tex_target_to_face(target
);
506 stImage
->level
= level
;
509 if (ctx
->_ImageTransferState
& IMAGE_CONVOLUTION_BIT
) {
510 _mesa_adjust_image_for_convolution(ctx
, dims
, &postConvWidth
,
515 _mesa_set_fetch_functions(texImage
, dims
);
517 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
518 /* must be a compressed format */
522 texelBytes
= _mesa_get_format_bytes(texImage
->TexFormat
);
524 /* Minimum pitch of 32 bytes */
525 if (postConvWidth
* texelBytes
< 32) {
526 postConvWidth
= 32 / texelBytes
;
527 texImage
->RowStride
= postConvWidth
;
530 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
531 /*assert(texImage->RowStride == postConvWidth);*/
534 /* Release the reference to a potentially orphaned buffer.
535 * Release any old malloced memory.
538 pipe_texture_reference(&stImage
->pt
, NULL
);
539 assert(!texImage
->Data
);
541 else if (texImage
->Data
) {
542 _mesa_align_free(texImage
->Data
);
545 if (width
== 0 || height
== 0 || depth
== 0) {
546 /* stop after freeing old image */
550 /* If this is the only mipmap level in the texture, could call
551 * bmBufferData with NULL data to free the old block and avoid
552 * waiting on any outstanding fences.
555 if (stObj
->teximage_realloc
||
556 level
> (GLint
) stObj
->pt
->last_level
||
557 (stObj
->pt
->last_level
== level
&&
558 stObj
->pt
->target
!= PIPE_TEXTURE_CUBE
&&
559 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
560 stImage
->face
, stImage
->level
))) {
562 pipe_texture_reference(&stObj
->pt
, NULL
);
564 stObj
->teximage_realloc
= FALSE
;
569 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
571 /* Probably out of memory.
572 * Try flushing any pending rendering, then retry.
575 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
577 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
583 assert(!stImage
->pt
);
586 st_texture_match_image(stObj
->pt
, &stImage
->base
,
587 stImage
->face
, stImage
->level
)) {
589 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
594 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
596 /* st_CopyTexImage calls this function with pixels == NULL, with
597 * the expectation that the texture will be set up but nothing
598 * more will be done. This is where those calls return:
600 if (compressed_src
) {
601 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
603 "glCompressedTexImage");
606 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
608 pixels
, unpack
, "glTexImage");
611 /* Note: we can't check for pixels==NULL until after we've allocated
612 * memory for the texture.
615 /* See if we can do texture compression with a blit/render.
617 if (!compressed_src
&&
619 _mesa_is_format_compressed(texImage
->TexFormat
) &&
620 screen
->is_format_supported(screen
,
623 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
627 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
628 format
, type
, pixels
, unpack
, texImage
)) {
634 if (format
== GL_DEPTH_COMPONENT
&&
635 pf_is_depth_and_stencil(stImage
->pt
->format
))
636 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
638 transfer_usage
= PIPE_TRANSFER_WRITE
;
640 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
641 transfer_usage
, 0, 0,
643 stImage
->base
.Height
);
644 if(stImage
->transfer
)
645 dstRowStride
= stImage
->transfer
->stride
;
648 /* Allocate regular memory and store the image there temporarily. */
649 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
650 sizeInBytes
= _mesa_format_image_size(texImage
->TexFormat
,
654 dstRowStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
658 dstRowStride
= postConvWidth
* texelBytes
;
659 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
662 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
665 if (!texImage
->Data
) {
666 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
673 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
674 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
676 /* Copy data. Would like to know when it's ok for us to eg. use
677 * the blitter to copy. Or, use the hardware to do the format
678 * conversion and copy:
680 if (compressed_src
) {
681 memcpy(texImage
->Data
, pixels
, imageSize
);
684 const GLuint srcImageStride
=
685 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
687 const GLubyte
*src
= (const GLubyte
*) pixels
;
689 for (i
= 0; i
< depth
; i
++) {
690 if (!_mesa_texstore(ctx
, dims
,
691 texImage
->_BaseFormat
,
694 0, 0, 0, /* dstX/Y/Zoffset */
696 texImage
->ImageOffsets
,
698 format
, type
, src
, unpack
)) {
699 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
702 if (stImage
->pt
&& i
+ 1 < depth
) {
703 /* unmap this slice */
704 st_texture_image_unmap(ctx
->st
, stImage
);
705 /* map next slice of 3D texture */
706 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
707 transfer_usage
, 0, 0,
709 stImage
->base
.Height
);
710 src
+= srcImageStride
;
716 _mesa_unmap_teximage_pbo(ctx
, unpack
);
718 if (stImage
->pt
&& texImage
->Data
) {
719 st_texture_image_unmap(ctx
->st
, stImage
);
720 texImage
->Data
= NULL
;
726 st_TexImage3D(GLcontext
* ctx
,
727 GLenum target
, GLint level
,
728 GLint internalFormat
,
729 GLint width
, GLint height
, GLint depth
,
731 GLenum format
, GLenum type
, const void *pixels
,
732 const struct gl_pixelstore_attrib
*unpack
,
733 struct gl_texture_object
*texObj
,
734 struct gl_texture_image
*texImage
)
736 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
737 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
743 st_TexImage2D(GLcontext
* ctx
,
744 GLenum target
, GLint level
,
745 GLint internalFormat
,
746 GLint width
, GLint height
, GLint border
,
747 GLenum format
, GLenum type
, const void *pixels
,
748 const struct gl_pixelstore_attrib
*unpack
,
749 struct gl_texture_object
*texObj
,
750 struct gl_texture_image
*texImage
)
752 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
753 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
758 st_TexImage1D(GLcontext
* ctx
,
759 GLenum target
, GLint level
,
760 GLint internalFormat
,
761 GLint width
, GLint border
,
762 GLenum format
, GLenum type
, const void *pixels
,
763 const struct gl_pixelstore_attrib
*unpack
,
764 struct gl_texture_object
*texObj
,
765 struct gl_texture_image
*texImage
)
767 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
768 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
773 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
774 GLint internalFormat
,
775 GLint width
, GLint height
, GLint border
,
776 GLsizei imageSize
, const GLvoid
*data
,
777 struct gl_texture_object
*texObj
,
778 struct gl_texture_image
*texImage
)
780 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
781 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
787 * glGetTexImage() helper: decompress a compressed texture by rendering
788 * a textured quad. Store the results in the user's buffer.
791 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
792 GLenum format
, GLenum type
, GLvoid
*pixels
,
793 struct gl_texture_object
*texObj
,
794 struct gl_texture_image
*texImage
)
796 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
797 struct st_texture_image
*stImage
= st_texture_image(texImage
);
798 const GLuint width
= texImage
->Width
;
799 const GLuint height
= texImage
->Height
;
800 struct pipe_surface
*dst_surface
;
801 struct pipe_texture
*dst_texture
;
802 struct pipe_transfer
*tex_xfer
;
804 /* create temp / dest surface */
805 if (!util_create_rgba_surface(screen
, width
, height
,
806 &dst_texture
, &dst_surface
)) {
807 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
808 "in decompress_with_blit()");
812 /* blit/render/decompress */
813 util_blit_pixels_tex(ctx
->st
->blit
,
814 stImage
->pt
, /* pipe_texture (src) */
815 0, 0, /* src x0, y0 */
816 width
, height
, /* src x1, y1 */
817 dst_surface
, /* pipe_surface (dst) */
818 0, 0, /* dst x0, y0 */
819 width
, height
, /* dst x1, y1 */
821 PIPE_TEX_MIPFILTER_NEAREST
);
823 /* map the dst_surface so we can read from it */
824 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
825 dst_texture
, 0, 0, 0,
827 0, 0, width
, height
);
829 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
831 /* copy/pack data into user buffer */
832 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
834 const uint bytesPerRow
= width
* pf_get_size(stImage
->pt
->format
);
835 ubyte
*map
= screen
->transfer_map(screen
, tex_xfer
);
837 for (row
= 0; row
< height
; row
++) {
838 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
839 height
, format
, type
, row
, 0);
840 memcpy(dest
, map
, bytesPerRow
);
841 map
+= tex_xfer
->stride
;
843 screen
->transfer_unmap(screen
, tex_xfer
);
846 /* format translation via floats */
848 for (row
= 0; row
< height
; row
++) {
849 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
850 GLfloat rgba
[4 * MAX_WIDTH
];
851 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
852 height
, format
, type
, row
, 0);
854 if (ST_DEBUG
& DEBUG_FALLBACK
)
855 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
857 /* get float[4] rgba row from surface */
858 pipe_get_tile_rgba(tex_xfer
, 0, row
, width
, 1, rgba
);
860 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
861 type
, dest
, &ctx
->Pack
, transferOps
);
865 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
867 /* destroy the temp / dest surface */
868 util_destroy_rgba_surface(dst_texture
, dst_surface
);
874 * Need to map texture image into memory before copying image data,
878 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
879 GLenum format
, GLenum type
, GLvoid
* pixels
,
880 struct gl_texture_object
*texObj
,
881 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
883 struct st_texture_image
*stImage
= st_texture_image(texImage
);
884 const GLuint dstImageStride
=
885 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
891 pf_is_compressed(stImage
->pt
->format
) &&
893 /* Need to decompress the texture.
894 * We'll do this by rendering a textured quad.
895 * Note that we only expect RGBA formats (no Z/depth formats).
897 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
904 /* Image is stored in hardware format in a buffer managed by the
905 * kernel. Need to explicitly map and unmap it.
907 unsigned face
= _mesa_tex_target_to_face(target
);
909 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
912 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
913 PIPE_TRANSFER_READ
, 0, 0,
915 stImage
->base
.Height
);
916 texImage
->RowStride
= stImage
->transfer
->stride
/ stImage
->pt
->block
.size
;
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 for (i
= 0; i
< depth
; i
++) {
936 if (compressed_dst
) {
937 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
941 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
945 if (stImage
->pt
&& i
+ 1 < depth
) {
946 /* unmap this slice */
947 st_texture_image_unmap(ctx
->st
, stImage
);
948 /* map next slice of 3D texture */
949 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
950 PIPE_TRANSFER_READ
, 0, 0,
952 stImage
->base
.Height
);
953 dest
+= dstImageStride
;
957 texImage
->Depth
= depth
;
961 st_texture_image_unmap(ctx
->st
, stImage
);
962 texImage
->Data
= NULL
;
968 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
969 GLenum format
, GLenum type
, GLvoid
* pixels
,
970 struct gl_texture_object
*texObj
,
971 struct gl_texture_image
*texImage
)
973 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
979 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
981 struct gl_texture_object
*texObj
,
982 struct gl_texture_image
*texImage
)
984 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
991 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
992 GLint xoffset
, GLint yoffset
, GLint zoffset
,
993 GLint width
, GLint height
, GLint depth
,
994 GLenum format
, GLenum type
, const void *pixels
,
995 const struct gl_pixelstore_attrib
*packing
,
996 struct gl_texture_object
*texObj
,
997 struct gl_texture_image
*texImage
)
999 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1000 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1001 GLuint dstRowStride
;
1002 const GLuint srcImageStride
=
1003 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1006 /* init to silence warning only: */
1007 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1009 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1010 _mesa_lookup_enum_by_nr(target
),
1011 level
, xoffset
, yoffset
, width
, height
);
1014 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1015 type
, pixels
, packing
, "glTexSubImage2D");
1019 /* See if we can do texture compression with a blit/render.
1021 if (!ctx
->Mesa_DXTn
&&
1022 _mesa_is_format_compressed(texImage
->TexFormat
) &&
1023 screen
->is_format_supported(screen
,
1024 stImage
->pt
->format
,
1025 stImage
->pt
->target
,
1026 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1027 if (compress_with_blit(ctx
, target
, level
,
1028 xoffset
, yoffset
, zoffset
,
1029 width
, height
, depth
,
1030 format
, type
, pixels
, packing
, texImage
)) {
1035 /* Map buffer if necessary. Need to lock to prevent other contexts
1036 * from uploading the buffer under us.
1039 unsigned face
= _mesa_tex_target_to_face(target
);
1041 if (format
== GL_DEPTH_COMPONENT
&&
1042 pf_is_depth_and_stencil(stImage
->pt
->format
))
1043 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1045 transfer_usage
= PIPE_TRANSFER_WRITE
;
1047 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1049 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1055 if (!texImage
->Data
) {
1056 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1060 src
= (const GLubyte
*) pixels
;
1061 dstRowStride
= stImage
->transfer
->stride
;
1063 for (i
= 0; i
< depth
; i
++) {
1064 if (!_mesa_texstore(ctx
, dims
, texImage
->_BaseFormat
,
1065 texImage
->TexFormat
,
1069 texImage
->ImageOffsets
,
1071 format
, type
, src
, packing
)) {
1072 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1075 if (stImage
->pt
&& i
+ 1 < depth
) {
1076 /* unmap this slice */
1077 st_texture_image_unmap(ctx
->st
, stImage
);
1078 /* map next slice of 3D texture */
1079 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1084 src
+= srcImageStride
;
1089 _mesa_unmap_teximage_pbo(ctx
, packing
);
1091 if (stImage
->pt
&& texImage
->Data
) {
1092 st_texture_image_unmap(ctx
->st
, stImage
);
1093 texImage
->Data
= NULL
;
1100 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1101 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1102 GLsizei width
, GLsizei height
, GLsizei depth
,
1103 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1104 const struct gl_pixelstore_attrib
*packing
,
1105 struct gl_texture_object
*texObj
,
1106 struct gl_texture_image
*texImage
)
1108 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1109 width
, height
, depth
, format
, type
,
1110 pixels
, packing
, texObj
, texImage
);
1115 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1116 GLint xoffset
, GLint yoffset
,
1117 GLsizei width
, GLsizei height
,
1118 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1119 const struct gl_pixelstore_attrib
*packing
,
1120 struct gl_texture_object
*texObj
,
1121 struct gl_texture_image
*texImage
)
1123 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1124 width
, height
, 1, format
, type
,
1125 pixels
, packing
, texObj
, texImage
);
1130 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1131 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1132 const GLvoid
* pixels
,
1133 const struct gl_pixelstore_attrib
*packing
,
1134 struct gl_texture_object
*texObj
,
1135 struct gl_texture_image
*texImage
)
1137 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1138 format
, type
, pixels
, packing
, texObj
, texImage
);
1143 st_CompressedTexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1144 GLint xoffset
, GLsizei width
,
1146 GLsizei imageSize
, const GLvoid
*data
,
1147 struct gl_texture_object
*texObj
,
1148 struct gl_texture_image
*texImage
)
1155 st_CompressedTexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1156 GLint xoffset
, GLint yoffset
,
1157 GLsizei width
, GLint height
,
1159 GLsizei imageSize
, const GLvoid
*data
,
1160 struct gl_texture_object
*texObj
,
1161 struct gl_texture_image
*texImage
)
1163 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1164 struct pipe_format_block block
;
1170 unsigned face
= _mesa_tex_target_to_face(target
);
1172 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1173 PIPE_TRANSFER_WRITE
);
1174 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
1175 PIPE_TRANSFER_WRITE
,
1179 block
= stImage
->pt
->block
;
1180 srcBlockStride
= pf_get_stride(&block
, width
);
1181 dstBlockStride
= stImage
->transfer
->stride
;
1183 assert(stImage
->pt
);
1184 /* TODO find good values for block and strides */
1185 /* TODO also adjust texImage->data for yoffset/xoffset */
1189 if (!texImage
->Data
) {
1190 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1194 assert(xoffset
% block
.width
== 0);
1195 assert(yoffset
% block
.height
== 0);
1196 assert(width
% block
.width
== 0);
1197 assert(height
% block
.height
== 0);
1199 for (y
= 0; y
< height
; y
+= block
.height
) {
1200 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1201 const char *src
= (const char*)data
+ srcBlockStride
* pf_get_nblocksy(&block
, y
);
1202 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* pf_get_nblocksy(&block
, y
);
1203 memcpy(dst
, src
, pf_get_stride(&block
, width
));
1207 st_texture_image_unmap(ctx
->st
, stImage
);
1208 texImage
->Data
= NULL
;
1214 st_CompressedTexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1215 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1216 GLsizei width
, GLint height
, GLint depth
,
1218 GLsizei imageSize
, const GLvoid
*data
,
1219 struct gl_texture_object
*texObj
,
1220 struct gl_texture_image
*texImage
)
1228 * Do a CopyTexSubImage operation using a read transfer from the source,
1229 * a write transfer to the destination and get_tile()/put_tile() to access
1230 * the pixels/texels.
1232 * Note: srcY=0=TOP of renderbuffer
1235 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1236 struct st_renderbuffer
*strb
,
1237 struct st_texture_image
*stImage
,
1239 GLint destX
, GLint destY
, GLint destZ
,
1240 GLint srcX
, GLint srcY
,
1241 GLsizei width
, GLsizei height
)
1243 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1244 struct pipe_screen
*screen
= pipe
->screen
;
1245 struct pipe_transfer
*src_trans
;
1247 enum pipe_transfer_usage transfer_usage
;
1249 if (ST_DEBUG
& DEBUG_FALLBACK
)
1250 debug_printf("%s: fallback processing\n", __FUNCTION__
);
1252 assert(width
<= MAX_WIDTH
);
1254 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1255 srcY
= strb
->Base
.Height
- srcY
- height
;
1258 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1265 if ((baseFormat
== GL_DEPTH_COMPONENT
||
1266 baseFormat
== GL_DEPTH_STENCIL
) &&
1267 pf_is_depth_and_stencil(stImage
->pt
->format
))
1268 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1270 transfer_usage
= PIPE_TRANSFER_WRITE
;
1272 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1275 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, transfer_usage
,
1276 destX
, destY
, width
, height
);
1278 if (baseFormat
== GL_DEPTH_COMPONENT
||
1279 baseFormat
== GL_DEPTH_STENCIL
) {
1280 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1281 ctx
->Pixel
.DepthBias
!= 0.0F
);
1284 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1285 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1294 /* To avoid a large temp memory allocation, do copy row by row */
1295 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1296 uint data
[MAX_WIDTH
];
1297 pipe_get_tile_z(src_trans
, 0, srcY
, width
, 1, data
);
1299 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1301 pipe_put_tile_z(stImage
->transfer
, 0, row
, width
, 1, data
);
1307 (GLfloat
*) _mesa_malloc(width
* height
* 4 * sizeof(GLfloat
));
1309 if (tempSrc
&& texDest
) {
1310 const GLint dims
= 2;
1311 const GLint dstRowStride
= stImage
->transfer
->stride
;
1312 struct gl_texture_image
*texImage
= &stImage
->base
;
1313 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1315 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1316 unpack
.Invert
= GL_TRUE
;
1319 /* get float/RGBA image from framebuffer */
1320 /* XXX this usually involves a lot of int/float conversion.
1321 * try to avoid that someday.
1323 pipe_get_tile_rgba(src_trans
, 0, 0, width
, height
, tempSrc
);
1325 /* Store into texture memory.
1326 * Note that this does some special things such as pixel transfer
1327 * ops and format conversion. In particular, if the dest tex format
1328 * is actually RGBA but the user created the texture as GL_RGB we
1329 * need to fill-in/override the alpha channel with 1.0.
1331 _mesa_texstore(ctx
, dims
,
1332 texImage
->_BaseFormat
,
1333 texImage
->TexFormat
,
1337 texImage
->ImageOffsets
,
1339 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1343 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1347 _mesa_free(tempSrc
);
1350 st_texture_image_unmap(ctx
->st
, stImage
);
1351 screen
->tex_transfer_destroy(src_trans
);
1356 compatible_src_dst_formats(const struct gl_renderbuffer
*src
,
1357 const struct gl_texture_image
*dst
)
1359 const GLenum srcFormat
= _mesa_get_format_base_format(src
->Format
);
1360 const GLenum dstLogicalFormat
= _mesa_get_format_base_format(dst
->TexFormat
);
1362 if (srcFormat
== dstLogicalFormat
) {
1363 /* This is the same as matching_base_formats, which should
1364 * always pass, as it did previously.
1366 return TGSI_WRITEMASK_XYZW
;
1368 else if (srcFormat
== GL_RGBA
&&
1369 dstLogicalFormat
== GL_RGB
) {
1370 /* Add a single special case to cope with RGBA->RGB transfers,
1371 * setting A to 1.0 to cope with situations where the RGB
1372 * destination is actually stored as RGBA.
1374 return TGSI_WRITEMASK_XYZ
; /* A ==> 1.0 */
1377 if (ST_DEBUG
& DEBUG_FALLBACK
)
1378 debug_printf("%s failed for src %s, dst %s\n",
1380 _mesa_lookup_enum_by_nr(srcFormat
),
1381 _mesa_lookup_enum_by_nr(dstLogicalFormat
));
1392 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1393 * Note that the region to copy has already been clipped so we know we
1394 * won't read from outside the source renderbuffer's bounds.
1396 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1399 st_copy_texsubimage(GLcontext
*ctx
,
1400 GLenum target
, GLint level
,
1401 GLint destX
, GLint destY
, GLint destZ
,
1402 GLint srcX
, GLint srcY
,
1403 GLsizei width
, GLsizei height
)
1405 struct gl_texture_unit
*texUnit
=
1406 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1407 struct gl_texture_object
*texObj
=
1408 _mesa_select_tex_object(ctx
, texUnit
, target
);
1409 struct gl_texture_image
*texImage
=
1410 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1411 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1412 const GLenum texBaseFormat
= texImage
->_BaseFormat
;
1413 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1414 struct st_renderbuffer
*strb
;
1415 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1416 struct pipe_screen
*screen
= pipe
->screen
;
1417 enum pipe_format dest_format
, src_format
;
1418 GLboolean use_fallback
= GL_TRUE
;
1419 GLboolean matching_base_formats
;
1420 GLuint format_writemask
;
1421 struct pipe_surface
*dest_surface
= NULL
;
1422 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1424 /* any rendering in progress must flushed before we grab the fb image */
1425 st_flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
1427 /* make sure finalize_textures has been called?
1429 if (0) st_validate_state(ctx
->st
);
1431 /* determine if copying depth or color data */
1432 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1433 texBaseFormat
== GL_DEPTH_STENCIL
) {
1434 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1437 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1438 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1441 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1442 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1470 if (width
< 0 || height
< 0)
1475 assert(strb
->surface
);
1476 assert(stImage
->pt
);
1478 src_format
= strb
->surface
->format
;
1479 dest_format
= stImage
->pt
->format
;
1482 * Determine if the src framebuffer and dest texture have the same
1483 * base format. We need this to detect a case such as the framebuffer
1484 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1485 * texture format stores RGBA we need to set A=1 (overriding the
1486 * framebuffer's alpha values). We can't do that with the blit or
1487 * textured-quad paths.
1489 matching_base_formats
=
1490 (_mesa_get_format_base_format(strb
->Base
.Format
) ==
1491 _mesa_get_format_base_format(texImage
->TexFormat
));
1492 format_writemask
= compatible_src_dst_formats(&strb
->Base
, texImage
);
1494 if (ctx
->_ImageTransferState
== 0x0) {
1496 if (pipe
->surface_copy
&&
1497 matching_base_formats
&&
1498 src_format
== dest_format
&&
1501 /* use surface_copy() / blit */
1503 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1504 stImage
->face
, stImage
->level
,
1506 PIPE_BUFFER_USAGE_GPU_WRITE
);
1508 /* for surface_copy(), y=0=top, always */
1509 pipe
->surface_copy(pipe
,
1518 use_fallback
= GL_FALSE
;
1520 else if (format_writemask
&&
1521 texBaseFormat
!= GL_DEPTH_COMPONENT
&&
1522 texBaseFormat
!= GL_DEPTH_STENCIL
&&
1523 screen
->is_format_supported(screen
, src_format
,
1525 PIPE_TEXTURE_USAGE_SAMPLER
,
1527 screen
->is_format_supported(screen
, dest_format
,
1529 PIPE_TEXTURE_USAGE_RENDER_TARGET
,
1531 /* draw textured quad to do the copy */
1534 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1535 stImage
->face
, stImage
->level
,
1537 PIPE_BUFFER_USAGE_GPU_WRITE
);
1540 srcY1
= strb
->Base
.Height
- srcY
- height
;
1541 srcY0
= srcY1
+ height
;
1545 srcY1
= srcY0
+ height
;
1547 util_blit_pixels_writemask(ctx
->st
->blit
,
1550 srcX
+ width
, srcY1
,
1553 destX
+ width
, destY
+ height
,
1554 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1556 use_fallback
= GL_FALSE
;
1560 pipe_surface_reference(&dest_surface
, NULL
);
1564 /* software fallback */
1565 fallback_copy_texsubimage(ctx
, target
, level
,
1566 strb
, stImage
, texBaseFormat
,
1567 destX
, destY
, destZ
,
1568 srcX
, srcY
, width
, height
);
1575 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1576 GLenum internalFormat
,
1577 GLint x
, GLint y
, GLsizei width
, GLint border
)
1579 struct gl_texture_unit
*texUnit
=
1580 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1581 struct gl_texture_object
*texObj
=
1582 _mesa_select_tex_object(ctx
, texUnit
, target
);
1583 struct gl_texture_image
*texImage
=
1584 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1586 /* Setup or redefine the texture object, texture and texture
1587 * image. Don't populate yet.
1589 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1591 GL_RGBA
, CHAN_TYPE
, NULL
,
1592 &ctx
->DefaultPacking
, texObj
, texImage
);
1594 st_copy_texsubimage(ctx
, target
, level
,
1595 0, 0, 0, /* destX,Y,Z */
1596 x
, y
, width
, 1); /* src X, Y, size */
1601 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1602 GLenum internalFormat
,
1603 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1606 struct gl_texture_unit
*texUnit
=
1607 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1608 struct gl_texture_object
*texObj
=
1609 _mesa_select_tex_object(ctx
, texUnit
, target
);
1610 struct gl_texture_image
*texImage
=
1611 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1613 /* Setup or redefine the texture object, texture and texture
1614 * image. Don't populate yet.
1616 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1617 width
, height
, border
,
1618 GL_RGBA
, CHAN_TYPE
, NULL
,
1619 &ctx
->DefaultPacking
, texObj
, texImage
);
1621 st_copy_texsubimage(ctx
, target
, level
,
1622 0, 0, 0, /* destX,Y,Z */
1623 x
, y
, width
, height
); /* src X, Y, size */
1628 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1629 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1631 const GLint yoffset
= 0, zoffset
= 0;
1632 const GLsizei height
= 1;
1633 st_copy_texsubimage(ctx
, target
, level
,
1634 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1635 x
, y
, width
, height
); /* src X, Y, size */
1640 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1641 GLint xoffset
, GLint yoffset
,
1642 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1644 const GLint zoffset
= 0;
1645 st_copy_texsubimage(ctx
, target
, level
,
1646 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1647 x
, y
, width
, height
); /* src X, Y, size */
1652 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1653 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1654 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1656 st_copy_texsubimage(ctx
, target
, level
,
1657 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1658 x
, y
, width
, height
); /* src X, Y, size */
1663 copy_image_data_to_texture(struct st_context
*st
,
1664 struct st_texture_object
*stObj
,
1666 struct st_texture_image
*stImage
)
1669 /* Copy potentially with the blitter:
1671 st_texture_image_copy(st
->pipe
,
1672 stObj
->pt
, dstLevel
, /* dest texture, level */
1673 stImage
->pt
, /* src texture */
1677 pipe_texture_reference(&stImage
->pt
, NULL
);
1679 else if (stImage
->base
.Data
) {
1680 /* More straightforward upload.
1683 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1684 PIPE_TRANSFER_WRITE
);
1687 st_texture_image_data(st
,
1692 stImage
->base
.RowStride
*
1693 stObj
->pt
->block
.size
,
1694 stImage
->base
.RowStride
*
1695 stImage
->base
.Height
*
1696 stObj
->pt
->block
.size
);
1697 _mesa_align_free(stImage
->base
.Data
);
1698 stImage
->base
.Data
= NULL
;
1701 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
1706 * Called during state validation. When this function is finished,
1707 * the texture object should be ready for rendering.
1708 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1711 st_finalize_texture(GLcontext
*ctx
,
1712 struct pipe_context
*pipe
,
1713 struct gl_texture_object
*tObj
,
1714 GLboolean
*needFlush
)
1716 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1717 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1718 GLuint blockSize
, face
;
1719 struct st_texture_image
*firstImage
;
1721 *needFlush
= GL_FALSE
;
1723 if (stObj
->base
._Complete
) {
1724 /* The texture is complete and we know exactly how many mipmap levels
1725 * are present/needed. This is conditional because we may be called
1726 * from the st_generate_mipmap() function when the texture object is
1727 * incomplete. In that case, we'll have set stObj->lastLevel before
1730 if (stObj
->base
.MinFilter
== GL_LINEAR
||
1731 stObj
->base
.MinFilter
== GL_NEAREST
)
1732 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1734 stObj
->lastLevel
= stObj
->base
._MaxLevel
- stObj
->base
.BaseLevel
;
1737 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1739 /* If both firstImage and stObj point to a texture which can contain
1740 * all active images, favour firstImage. Note that because of the
1741 * completeness requirement, we know that the image dimensions
1744 if (firstImage
->pt
&&
1745 firstImage
->pt
!= stObj
->pt
&&
1746 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1747 pipe_texture_reference(&stObj
->pt
, firstImage
->pt
);
1750 /* bytes per pixel block (blocks are usually 1x1) */
1751 blockSize
= _mesa_get_format_bytes(firstImage
->base
.TexFormat
);
1753 /* If we already have a gallium texture, check that it matches the texture
1754 * object's format, target, size, num_levels, etc.
1757 const enum pipe_format fmt
=
1758 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1759 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1760 stObj
->pt
->format
!= fmt
||
1761 stObj
->pt
->last_level
< stObj
->lastLevel
||
1762 stObj
->pt
->width
[0] != firstImage
->base
.Width2
||
1763 stObj
->pt
->height
[0] != firstImage
->base
.Height2
||
1764 stObj
->pt
->depth
[0] != firstImage
->base
.Depth2
||
1765 stObj
->pt
->block
.size
!= blockSize
)
1767 pipe_texture_reference(&stObj
->pt
, NULL
);
1768 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1772 /* May need to create a new gallium texture:
1775 const enum pipe_format fmt
=
1776 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1777 GLuint usage
= default_usage(fmt
);
1779 stObj
->pt
= st_texture_create(ctx
->st
,
1780 gl_target_to_pipe(stObj
->base
.Target
),
1783 firstImage
->base
.Width2
,
1784 firstImage
->base
.Height2
,
1785 firstImage
->base
.Depth2
,
1789 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1794 /* Pull in any images not in the object's texture:
1796 for (face
= 0; face
< nr_faces
; face
++) {
1798 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1799 struct st_texture_image
*stImage
=
1800 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1802 /* Need to import images in main memory or held in other textures.
1804 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1805 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1806 *needFlush
= GL_TRUE
;
1816 * Returns pointer to a default/dummy texture.
1817 * This is typically used when the current shader has tex/sample instructions
1818 * but the user has not provided a (any) texture(s).
1820 struct gl_texture_object
*
1821 st_get_default_texture(struct st_context
*st
)
1823 if (!st
->default_texture
) {
1824 static const GLenum target
= GL_TEXTURE_2D
;
1825 GLubyte pixels
[16][16][4];
1826 struct gl_texture_object
*texObj
;
1827 struct gl_texture_image
*texImg
;
1830 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1831 * when attempting to sample incomplete textures.
1833 for (i
= 0; i
< 16; i
++) {
1834 for (j
= 0; j
< 16; j
++) {
1835 pixels
[i
][j
][0] = 0;
1836 pixels
[i
][j
][1] = 0;
1837 pixels
[i
][j
][2] = 0;
1838 pixels
[i
][j
][3] = 255;
1842 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1844 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1846 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1847 16, 16, 1, 0, /* w, h, d, border */
1850 st_TexImage(st
->ctx
, 2, target
,
1851 0, GL_RGBA
, /* level, intformat */
1852 16, 16, 1, 0, /* w, h, d, border */
1853 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1854 &st
->ctx
->DefaultPacking
,
1858 texObj
->MinFilter
= GL_NEAREST
;
1859 texObj
->MagFilter
= GL_NEAREST
;
1860 texObj
->_Complete
= GL_TRUE
;
1862 st
->default_texture
= texObj
;
1864 return st
->default_texture
;
1869 st_init_texture_functions(struct dd_function_table
*functions
)
1871 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1872 functions
->TexImage1D
= st_TexImage1D
;
1873 functions
->TexImage2D
= st_TexImage2D
;
1874 functions
->TexImage3D
= st_TexImage3D
;
1875 functions
->TexSubImage1D
= st_TexSubImage1D
;
1876 functions
->TexSubImage2D
= st_TexSubImage2D
;
1877 functions
->TexSubImage3D
= st_TexSubImage3D
;
1878 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1879 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1880 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1881 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1882 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1883 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1884 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1885 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1886 functions
->GenerateMipmap
= st_generate_mipmap
;
1888 functions
->GetTexImage
= st_GetTexImage
;
1890 /* compressed texture functions */
1891 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1892 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1894 functions
->NewTextureObject
= st_NewTextureObject
;
1895 functions
->NewTextureImage
= st_NewTextureImage
;
1896 functions
->DeleteTexture
= st_DeleteTextureObject
;
1897 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1898 functions
->UpdateTexturePalette
= 0;
1900 functions
->TextureMemCpy
= do_memcpy
;
1902 /* XXX Temporary until we can query pipe's texture sizes */
1903 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;