1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "main/mfeatures.h"
29 #include "main/bufferobj.h"
31 #include "main/convolve.h"
33 #include "main/enums.h"
34 #include "main/fbobject.h"
35 #include "main/formats.h"
36 #include "main/image.h"
37 #include "main/imports.h"
38 #include "main/macros.h"
39 #include "main/mipmap.h"
40 #include "main/texcompress.h"
41 #include "main/texfetch.h"
42 #include "main/texgetimage.h"
43 #include "main/teximage.h"
44 #include "main/texobj.h"
45 #include "main/texstore.h"
47 #include "state_tracker/st_debug.h"
48 #include "state_tracker/st_context.h"
49 #include "state_tracker/st_cb_fbo.h"
50 #include "state_tracker/st_cb_texture.h"
51 #include "state_tracker/st_format.h"
52 #include "state_tracker/st_public.h"
53 #include "state_tracker/st_texture.h"
54 #include "state_tracker/st_gen_mipmap.h"
55 #include "state_tracker/st_inlines.h"
56 #include "state_tracker/st_atom.h"
58 #include "pipe/p_context.h"
59 #include "pipe/p_defines.h"
60 #include "util/u_inlines.h"
61 #include "pipe/p_shader_tokens.h"
62 #include "util/u_tile.h"
63 #include "util/u_blit.h"
64 #include "util/u_format.h"
65 #include "util/u_surface.h"
66 #include "util/u_math.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
;
80 case GL_TEXTURE_RECTANGLE_NV
:
81 return PIPE_TEXTURE_2D
;
84 return PIPE_TEXTURE_3D
;
86 case GL_TEXTURE_CUBE_MAP_ARB
:
87 return PIPE_TEXTURE_CUBE
;
96 /** called via ctx->Driver.NewTextureImage() */
97 static struct gl_texture_image
*
98 st_NewTextureImage(GLcontext
* ctx
)
100 DBG("%s\n", __FUNCTION__
);
102 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
106 /** called via ctx->Driver.NewTextureObject() */
107 static struct gl_texture_object
*
108 st_NewTextureObject(GLcontext
* ctx
, GLuint name
, GLenum target
)
110 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
112 DBG("%s\n", __FUNCTION__
);
113 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
118 /** called via ctx->Driver.DeleteTextureImage() */
120 st_DeleteTextureObject(GLcontext
*ctx
,
121 struct gl_texture_object
*texObj
)
123 struct st_texture_object
*stObj
= st_texture_object(texObj
);
125 pipe_texture_reference(&stObj
->pt
, NULL
);
127 _mesa_delete_texture_object(ctx
, texObj
);
131 /** called via ctx->Driver.FreeTexImageData() */
133 st_FreeTextureImageData(GLcontext
* ctx
, struct gl_texture_image
*texImage
)
135 struct st_texture_image
*stImage
= st_texture_image(texImage
);
137 DBG("%s\n", __FUNCTION__
);
140 pipe_texture_reference(&stImage
->pt
, NULL
);
143 if (texImage
->Data
) {
144 _mesa_align_free(texImage
->Data
);
145 texImage
->Data
= NULL
;
151 * From linux kernel i386 header files, copes with odd sizes better
152 * than COPY_DWORDS would:
153 * XXX Put this in src/mesa/main/imports.h ???
155 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
157 __memcpy(void *to
, const void *from
, size_t n
)
160 __asm__
__volatile__("rep ; movsl\n\t"
164 "1:\ttestb $1,%b4\n\t"
166 "movsb\n" "2:":"=&c"(d0
), "=&D"(d1
), "=&S"(d2
)
167 :"0"(n
/ 4), "q"(n
), "1"((long) to
), "2"((long) from
)
172 #define __memcpy(a,b,c) memcpy(a,b,c)
177 * The system memcpy (at least on ubuntu 5.10) has problems copying
178 * to agp (writecombined) memory from a source which isn't 64-byte
179 * aligned - there is a 4x performance falloff.
181 * The x86 __memcpy is immune to this but is slightly slower
182 * (10%-ish) than the system memcpy.
184 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
185 * isn't much faster than x86_memcpy for agp copies.
187 * TODO: switch dynamically.
190 do_memcpy(void *dest
, const void *src
, size_t n
)
192 if ((((unsigned long) src
) & 63) || (((unsigned long) dest
) & 63)) {
193 return __memcpy(dest
, src
, n
);
196 return memcpy(dest
, src
, n
);
201 * Return default texture usage bitmask for the given texture format.
204 default_usage(enum pipe_format fmt
)
206 GLuint usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
207 if (util_format_is_depth_or_stencil(fmt
))
208 usage
|= PIPE_TEXTURE_USAGE_DEPTH_STENCIL
;
210 usage
|= PIPE_TEXTURE_USAGE_RENDER_TARGET
;
216 * Allocate a pipe_texture object for the given st_texture_object using
217 * the given st_texture_image to guess the mipmap size/levels.
220 * Otherwise, store it in memory if (Border != 0) or (any dimension ==
223 * Otherwise, if max_level >= level >= min_level, create texture with
224 * space for images from min_level down to max_level.
226 * Otherwise, create texture with space for images from (level 0)..(1x1).
227 * Consider pruning this texture at a validation if the saving is worth it.
230 guess_and_alloc_texture(struct st_context
*st
,
231 struct st_texture_object
*stObj
,
232 const struct st_texture_image
*stImage
)
236 GLuint width
= stImage
->base
.Width2
; /* size w/out border */
237 GLuint height
= stImage
->base
.Height2
;
238 GLuint depth
= stImage
->base
.Depth2
;
240 enum pipe_format fmt
;
242 DBG("%s\n", __FUNCTION__
);
247 (GLint
) stImage
->level
> stObj
->base
.BaseLevel
&&
248 (stImage
->base
.Width
== 1 ||
249 (stObj
->base
.Target
!= GL_TEXTURE_1D
&&
250 stImage
->base
.Height
== 1) ||
251 (stObj
->base
.Target
== GL_TEXTURE_3D
&&
252 stImage
->base
.Depth
== 1)))
255 /* If this image disrespects BaseLevel, allocate from level zero.
256 * Usually BaseLevel == 0, so it's unlikely to happen.
258 if ((GLint
) stImage
->level
< stObj
->base
.BaseLevel
)
261 firstLevel
= stObj
->base
.BaseLevel
;
264 /* Figure out image dimensions at start level.
266 for (i
= stImage
->level
; i
> firstLevel
; i
--) {
275 if (width
== 0 || height
== 0 || depth
== 0) {
276 /* no texture needed */
280 /* Guess a reasonable value for lastLevel. This is probably going
281 * to be wrong fairly often and might mean that we have to look at
282 * resizable buffers, or require that buffers implement lazy
283 * pagetable arrangements.
285 if ((stObj
->base
.MinFilter
== GL_NEAREST
||
286 stObj
->base
.MinFilter
== GL_LINEAR
||
287 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
288 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
289 !stObj
->base
.GenerateMipmap
&&
290 stImage
->level
== firstLevel
) {
291 /* only alloc space for a single mipmap level */
292 lastLevel
= firstLevel
;
295 /* alloc space for a full mipmap */
296 GLuint l2width
= util_logbase2(width
);
297 GLuint l2height
= util_logbase2(height
);
298 GLuint l2depth
= util_logbase2(depth
);
299 lastLevel
= firstLevel
+ MAX2(MAX2(l2width
, l2height
), l2depth
);
302 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
);
304 usage
= default_usage(fmt
);
306 stObj
->pt
= st_texture_create(st
,
307 gl_target_to_pipe(stObj
->base
.Target
),
315 DBG("%s - success\n", __FUNCTION__
);
320 * Adjust pixel unpack params and image dimensions to strip off the
322 * Gallium doesn't support texture borders. They've seldem been used
323 * and seldom been implemented correctly anyway.
324 * \param unpackNew returns the new pixel unpack parameters
327 strip_texture_border(GLint border
,
328 GLint
*width
, GLint
*height
, GLint
*depth
,
329 const struct gl_pixelstore_attrib
*unpack
,
330 struct gl_pixelstore_attrib
*unpackNew
)
332 assert(border
> 0); /* sanity check */
334 *unpackNew
= *unpack
;
336 if (unpackNew
->RowLength
== 0)
337 unpackNew
->RowLength
= *width
;
339 if (depth
&& unpackNew
->ImageHeight
== 0)
340 unpackNew
->ImageHeight
= *height
;
342 unpackNew
->SkipPixels
+= border
;
344 unpackNew
->SkipRows
+= border
;
346 unpackNew
->SkipImages
+= border
;
349 *width
= *width
- 2 * border
;
350 if (height
&& *height
>= 3)
351 *height
= *height
- 2 * border
;
352 if (depth
&& *depth
>= 3)
353 *depth
= *depth
- 2 * border
;
358 * Try to do texture compression via rendering. If the Gallium driver
359 * can render into a compressed surface this will allow us to do texture
361 * \return GL_TRUE for success, GL_FALSE for failure
364 compress_with_blit(GLcontext
* ctx
,
365 GLenum target
, GLint level
,
366 GLint xoffset
, GLint yoffset
, GLint zoffset
,
367 GLint width
, GLint height
, GLint depth
,
368 GLenum format
, GLenum type
, const void *pixels
,
369 const struct gl_pixelstore_attrib
*unpack
,
370 struct gl_texture_image
*texImage
)
372 const GLuint dstImageOffsets
[1] = {0};
373 struct st_texture_image
*stImage
= st_texture_image(texImage
);
374 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
375 gl_format mesa_format
;
376 struct pipe_texture templ
;
377 struct pipe_texture
*src_tex
;
378 struct pipe_surface
*dst_surface
;
379 struct pipe_transfer
*tex_xfer
;
383 /* XXX: Can this happen? Should we assert? */
387 /* get destination surface (in the compressed texture) */
388 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
389 stImage
->face
, stImage
->level
, 0,
390 PIPE_BUFFER_USAGE_GPU_WRITE
);
392 /* can't render into this format (or other problem) */
396 /* Choose format for the temporary RGBA texture image.
398 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
403 /* Create the temporary source texture
405 memset(&templ
, 0, sizeof(templ
));
406 templ
.target
= PIPE_TEXTURE_2D
;
407 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
);
408 templ
.width0
= width
;
409 templ
.height0
= height
;
411 templ
.last_level
= 0;
412 templ
.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
413 src_tex
= screen
->texture_create(screen
, &templ
);
418 /* Put user's tex data into the temporary texture
420 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
421 0, 0, 0, /* face, level are zero */
423 0, 0, width
, height
); /* x, y, w, h */
424 map
= screen
->transfer_map(screen
, tex_xfer
);
426 _mesa_texstore(ctx
, 2, GL_RGBA
, mesa_format
,
428 0, 0, 0, /* dest x/y/z offset */
429 tex_xfer
->stride
, /* dest row stride (bytes) */
430 dstImageOffsets
, /* image offsets (for 3D only) */
431 width
, height
, 1, /* size */
432 format
, type
, /* source format/type */
433 pixels
, /* source data */
434 unpack
); /* source data packing */
436 screen
->transfer_unmap(screen
, tex_xfer
);
437 screen
->tex_transfer_destroy(tex_xfer
);
439 /* copy / compress image */
440 util_blit_pixels_tex(ctx
->st
->blit
,
441 src_tex
, /* pipe_texture (src) */
442 0, 0, /* src x0, y0 */
443 width
, height
, /* src x1, y1 */
444 dst_surface
, /* pipe_surface (dst) */
445 xoffset
, yoffset
, /* dst x0, y0 */
446 xoffset
+ width
, /* dst x1 */
447 yoffset
+ height
, /* dst y1 */
449 PIPE_TEX_MIPFILTER_NEAREST
);
451 pipe_surface_reference(&dst_surface
, NULL
);
452 pipe_texture_reference(&src_tex
, NULL
);
459 * Do glTexImage1/2/3D().
462 st_TexImage(GLcontext
* ctx
,
464 GLenum target
, GLint level
,
465 GLint internalFormat
,
466 GLint width
, GLint height
, GLint depth
,
468 GLenum format
, GLenum type
, const void *pixels
,
469 const struct gl_pixelstore_attrib
*unpack
,
470 struct gl_texture_object
*texObj
,
471 struct gl_texture_image
*texImage
,
472 GLsizei imageSize
, GLboolean compressed_src
)
474 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
475 struct st_texture_object
*stObj
= st_texture_object(texObj
);
476 struct st_texture_image
*stImage
= st_texture_image(texImage
);
477 GLint postConvWidth
, postConvHeight
;
478 GLint texelBytes
, sizeInBytes
;
479 GLuint dstRowStride
= 0;
480 struct gl_pixelstore_attrib unpackNB
;
481 enum pipe_transfer_usage transfer_usage
= 0;
483 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
484 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
486 /* switch to "normal" */
487 if (stObj
->surface_based
) {
488 _mesa_clear_texture_object(ctx
, texObj
);
489 stObj
->surface_based
= GL_FALSE
;
492 /* gallium does not support texture borders, strip it off */
494 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
496 texImage
->Width
= width
;
497 texImage
->Height
= height
;
498 texImage
->Depth
= depth
;
499 texImage
->Border
= 0;
503 postConvWidth
= width
;
504 postConvHeight
= height
;
506 stImage
->face
= _mesa_tex_target_to_face(target
);
507 stImage
->level
= level
;
510 if (ctx
->_ImageTransferState
& IMAGE_CONVOLUTION_BIT
) {
511 _mesa_adjust_image_for_convolution(ctx
, dims
, &postConvWidth
,
516 _mesa_set_fetch_functions(texImage
, dims
);
518 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
519 /* must be a compressed format */
523 texelBytes
= _mesa_get_format_bytes(texImage
->TexFormat
);
525 /* Minimum pitch of 32 bytes */
526 if (postConvWidth
* texelBytes
< 32) {
527 postConvWidth
= 32 / texelBytes
;
528 texImage
->RowStride
= postConvWidth
;
531 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
532 /*assert(texImage->RowStride == postConvWidth);*/
535 /* Release the reference to a potentially orphaned buffer.
536 * Release any old malloced memory.
539 pipe_texture_reference(&stImage
->pt
, NULL
);
540 assert(!texImage
->Data
);
542 else if (texImage
->Data
) {
543 _mesa_align_free(texImage
->Data
);
547 * See if the new image is somehow incompatible with the existing
548 * mipmap. If so, free the old mipmap.
551 if (stObj
->teximage_realloc
||
552 level
> (GLint
) stObj
->pt
->last_level
||
553 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
554 stImage
->face
, stImage
->level
)) {
556 pipe_texture_reference(&stObj
->pt
, NULL
);
558 stObj
->teximage_realloc
= FALSE
;
562 if (width
== 0 || height
== 0 || depth
== 0) {
563 /* stop after freeing old image */
568 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
570 /* Probably out of memory.
571 * Try flushing any pending rendering, then retry.
574 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
576 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
582 assert(!stImage
->pt
);
585 st_texture_match_image(stObj
->pt
, &stImage
->base
,
586 stImage
->face
, stImage
->level
)) {
588 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
593 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
595 /* st_CopyTexImage calls this function with pixels == NULL, with
596 * the expectation that the texture will be set up but nothing
597 * more will be done. This is where those calls return:
599 if (compressed_src
) {
600 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
602 "glCompressedTexImage");
605 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
607 pixels
, unpack
, "glTexImage");
610 /* Note: we can't check for pixels==NULL until after we've allocated
611 * memory for the texture.
614 /* See if we can do texture compression with a blit/render.
616 if (!compressed_src
&&
618 _mesa_is_format_compressed(texImage
->TexFormat
) &&
619 screen
->is_format_supported(screen
,
622 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
626 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
627 format
, type
, pixels
, unpack
, texImage
)) {
633 if (format
== GL_DEPTH_COMPONENT
&&
634 util_format_is_depth_and_stencil(stImage
->pt
->format
))
635 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
637 transfer_usage
= PIPE_TRANSFER_WRITE
;
639 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
640 transfer_usage
, 0, 0,
642 stImage
->base
.Height
);
643 if(stImage
->transfer
)
644 dstRowStride
= stImage
->transfer
->stride
;
647 /* Allocate regular memory and store the image there temporarily. */
648 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
649 sizeInBytes
= _mesa_format_image_size(texImage
->TexFormat
,
653 dstRowStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
657 dstRowStride
= postConvWidth
* texelBytes
;
658 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
661 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
664 if (!texImage
->Data
) {
665 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
672 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
673 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
675 /* Copy data. Would like to know when it's ok for us to eg. use
676 * the blitter to copy. Or, use the hardware to do the format
677 * conversion and copy:
679 if (compressed_src
) {
680 const GLuint srcImageStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
681 if(dstRowStride
== srcImageStride
)
682 memcpy(texImage
->Data
, pixels
, imageSize
);
685 char *dst
= texImage
->Data
;
686 const char *src
= pixels
;
687 GLuint i
, bw
, bh
, lines
;
688 _mesa_get_format_block_size(texImage
->TexFormat
, &bw
, &bh
);
689 lines
= (height
+ bh
- 1) / bh
;
691 for(i
= 0; i
< lines
; ++i
)
693 memcpy(dst
, src
, srcImageStride
);
695 src
+= srcImageStride
;
700 const GLuint srcImageStride
=
701 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
703 const GLubyte
*src
= (const GLubyte
*) pixels
;
705 for (i
= 0; i
< depth
; i
++) {
706 if (!_mesa_texstore(ctx
, dims
,
707 texImage
->_BaseFormat
,
710 0, 0, 0, /* dstX/Y/Zoffset */
712 texImage
->ImageOffsets
,
714 format
, type
, src
, unpack
)) {
715 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
718 if (stImage
->pt
&& i
+ 1 < depth
) {
719 /* unmap this slice */
720 st_texture_image_unmap(ctx
->st
, stImage
);
721 /* map next slice of 3D texture */
722 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
723 transfer_usage
, 0, 0,
725 stImage
->base
.Height
);
726 src
+= srcImageStride
;
732 _mesa_unmap_teximage_pbo(ctx
, unpack
);
734 if (stImage
->pt
&& texImage
->Data
) {
735 st_texture_image_unmap(ctx
->st
, stImage
);
736 texImage
->Data
= NULL
;
742 st_TexImage3D(GLcontext
* ctx
,
743 GLenum target
, GLint level
,
744 GLint internalFormat
,
745 GLint width
, GLint height
, GLint depth
,
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
, 3, target
, level
, internalFormat
, width
, height
, depth
,
753 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
759 st_TexImage2D(GLcontext
* ctx
,
760 GLenum target
, GLint level
,
761 GLint internalFormat
,
762 GLint width
, GLint height
, GLint border
,
763 GLenum format
, GLenum type
, const void *pixels
,
764 const struct gl_pixelstore_attrib
*unpack
,
765 struct gl_texture_object
*texObj
,
766 struct gl_texture_image
*texImage
)
768 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
769 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
774 st_TexImage1D(GLcontext
* ctx
,
775 GLenum target
, GLint level
,
776 GLint internalFormat
,
777 GLint width
, GLint border
,
778 GLenum format
, GLenum type
, const void *pixels
,
779 const struct gl_pixelstore_attrib
*unpack
,
780 struct gl_texture_object
*texObj
,
781 struct gl_texture_image
*texImage
)
783 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
784 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
789 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
790 GLint internalFormat
,
791 GLint width
, GLint height
, GLint border
,
792 GLsizei imageSize
, const GLvoid
*data
,
793 struct gl_texture_object
*texObj
,
794 struct gl_texture_image
*texImage
)
796 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
797 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
803 * glGetTexImage() helper: decompress a compressed texture by rendering
804 * a textured quad. Store the results in the user's buffer.
807 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
808 GLenum format
, GLenum type
, GLvoid
*pixels
,
809 struct gl_texture_object
*texObj
,
810 struct gl_texture_image
*texImage
)
812 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
813 struct st_texture_image
*stImage
= st_texture_image(texImage
);
814 const GLuint width
= texImage
->Width
;
815 const GLuint height
= texImage
->Height
;
816 struct pipe_surface
*dst_surface
;
817 struct pipe_texture
*dst_texture
;
818 struct pipe_transfer
*tex_xfer
;
820 /* create temp / dest surface */
821 if (!util_create_rgba_surface(screen
, width
, height
,
822 &dst_texture
, &dst_surface
)) {
823 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
824 "in decompress_with_blit()");
828 /* blit/render/decompress */
829 util_blit_pixels_tex(ctx
->st
->blit
,
830 stImage
->pt
, /* pipe_texture (src) */
831 0, 0, /* src x0, y0 */
832 width
, height
, /* src x1, y1 */
833 dst_surface
, /* pipe_surface (dst) */
834 0, 0, /* dst x0, y0 */
835 width
, height
, /* dst x1, y1 */
837 PIPE_TEX_MIPFILTER_NEAREST
);
839 /* map the dst_surface so we can read from it */
840 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
841 dst_texture
, 0, 0, 0,
843 0, 0, width
, height
);
845 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
847 /* copy/pack data into user buffer */
848 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
850 const uint bytesPerRow
= width
* util_format_get_blocksize(stImage
->pt
->format
);
851 ubyte
*map
= screen
->transfer_map(screen
, tex_xfer
);
853 for (row
= 0; row
< height
; row
++) {
854 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
855 height
, format
, type
, row
, 0);
856 memcpy(dest
, map
, bytesPerRow
);
857 map
+= tex_xfer
->stride
;
859 screen
->transfer_unmap(screen
, tex_xfer
);
862 /* format translation via floats */
864 for (row
= 0; row
< height
; row
++) {
865 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
866 GLfloat rgba
[4 * MAX_WIDTH
];
867 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
868 height
, format
, type
, row
, 0);
870 if (ST_DEBUG
& DEBUG_FALLBACK
)
871 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
873 /* get float[4] rgba row from surface */
874 pipe_get_tile_rgba(tex_xfer
, 0, row
, width
, 1, rgba
);
876 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
877 type
, dest
, &ctx
->Pack
, transferOps
);
881 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
883 screen
->tex_transfer_destroy(tex_xfer
);
885 /* destroy the temp / dest surface */
886 util_destroy_rgba_surface(dst_texture
, dst_surface
);
892 * Need to map texture image into memory before copying image data,
896 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
897 GLenum format
, GLenum type
, GLvoid
* pixels
,
898 struct gl_texture_object
*texObj
,
899 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
901 struct st_texture_image
*stImage
= st_texture_image(texImage
);
902 const GLuint dstImageStride
=
903 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
909 util_format_is_compressed(stImage
->pt
->format
) &&
911 /* Need to decompress the texture.
912 * We'll do this by rendering a textured quad.
913 * Note that we only expect RGBA formats (no Z/depth formats).
915 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
922 /* Image is stored in hardware format in a buffer managed by the
923 * kernel. Need to explicitly map and unmap it.
925 unsigned face
= _mesa_tex_target_to_face(target
);
927 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
930 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
931 PIPE_TRANSFER_READ
, 0, 0,
933 stImage
->base
.Height
);
934 /* compute stride in texels from stride in bytes */
935 texImage
->RowStride
= stImage
->transfer
->stride
936 * util_format_get_blockwidth(stImage
->pt
->format
)
937 / util_format_get_blocksize(stImage
->pt
->format
);
940 /* Otherwise, the image should actually be stored in
941 * texImage->Data. This is pretty confusing for
942 * everybody, I'd much prefer to separate the two functions of
943 * texImage->Data - storage for texture images in main memory
944 * and access (ie mappings) of images. In other words, we'd
945 * create a new texImage->Map field and leave Data simply for
948 assert(texImage
->Data
);
951 depth
= texImage
->Depth
;
954 dest
= (GLubyte
*) pixels
;
956 for (i
= 0; i
< depth
; i
++) {
957 if (compressed_dst
) {
958 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
962 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
966 if (stImage
->pt
&& i
+ 1 < depth
) {
967 /* unmap this slice */
968 st_texture_image_unmap(ctx
->st
, stImage
);
969 /* map next slice of 3D texture */
970 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
971 PIPE_TRANSFER_READ
, 0, 0,
973 stImage
->base
.Height
);
974 dest
+= dstImageStride
;
978 texImage
->Depth
= depth
;
982 st_texture_image_unmap(ctx
->st
, stImage
);
983 texImage
->Data
= NULL
;
989 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
990 GLenum format
, GLenum type
, GLvoid
* pixels
,
991 struct gl_texture_object
*texObj
,
992 struct gl_texture_image
*texImage
)
994 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
1000 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
1002 struct gl_texture_object
*texObj
,
1003 struct gl_texture_image
*texImage
)
1005 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1012 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1013 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1014 GLint width
, GLint height
, GLint depth
,
1015 GLenum format
, GLenum type
, const void *pixels
,
1016 const struct gl_pixelstore_attrib
*packing
,
1017 struct gl_texture_object
*texObj
,
1018 struct gl_texture_image
*texImage
)
1020 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1021 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1022 GLuint dstRowStride
;
1023 const GLuint srcImageStride
=
1024 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1027 /* init to silence warning only: */
1028 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1030 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1031 _mesa_lookup_enum_by_nr(target
),
1032 level
, xoffset
, yoffset
, width
, height
);
1035 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1036 type
, pixels
, packing
, "glTexSubImage2D");
1040 /* See if we can do texture compression with a blit/render.
1042 if (!ctx
->Mesa_DXTn
&&
1043 _mesa_is_format_compressed(texImage
->TexFormat
) &&
1044 screen
->is_format_supported(screen
,
1045 stImage
->pt
->format
,
1046 stImage
->pt
->target
,
1047 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1048 if (compress_with_blit(ctx
, target
, level
,
1049 xoffset
, yoffset
, zoffset
,
1050 width
, height
, depth
,
1051 format
, type
, pixels
, packing
, texImage
)) {
1056 /* Map buffer if necessary. Need to lock to prevent other contexts
1057 * from uploading the buffer under us.
1060 unsigned face
= _mesa_tex_target_to_face(target
);
1062 if (format
== GL_DEPTH_COMPONENT
&&
1063 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1064 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1066 transfer_usage
= PIPE_TRANSFER_WRITE
;
1068 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1070 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1076 if (!texImage
->Data
) {
1077 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1081 src
= (const GLubyte
*) pixels
;
1082 dstRowStride
= stImage
->transfer
->stride
;
1084 for (i
= 0; i
< depth
; i
++) {
1085 if (!_mesa_texstore(ctx
, dims
, texImage
->_BaseFormat
,
1086 texImage
->TexFormat
,
1090 texImage
->ImageOffsets
,
1092 format
, type
, src
, packing
)) {
1093 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1096 if (stImage
->pt
&& i
+ 1 < depth
) {
1097 /* unmap this slice */
1098 st_texture_image_unmap(ctx
->st
, stImage
);
1099 /* map next slice of 3D texture */
1100 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1105 src
+= srcImageStride
;
1110 _mesa_unmap_teximage_pbo(ctx
, packing
);
1112 if (stImage
->pt
&& texImage
->Data
) {
1113 st_texture_image_unmap(ctx
->st
, stImage
);
1114 texImage
->Data
= NULL
;
1121 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1122 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1123 GLsizei width
, GLsizei height
, GLsizei depth
,
1124 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1125 const struct gl_pixelstore_attrib
*packing
,
1126 struct gl_texture_object
*texObj
,
1127 struct gl_texture_image
*texImage
)
1129 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1130 width
, height
, depth
, format
, type
,
1131 pixels
, packing
, texObj
, texImage
);
1136 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1137 GLint xoffset
, GLint yoffset
,
1138 GLsizei width
, GLsizei height
,
1139 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1140 const struct gl_pixelstore_attrib
*packing
,
1141 struct gl_texture_object
*texObj
,
1142 struct gl_texture_image
*texImage
)
1144 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1145 width
, height
, 1, format
, type
,
1146 pixels
, packing
, texObj
, texImage
);
1151 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1152 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1153 const GLvoid
* pixels
,
1154 const struct gl_pixelstore_attrib
*packing
,
1155 struct gl_texture_object
*texObj
,
1156 struct gl_texture_image
*texImage
)
1158 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1159 format
, type
, pixels
, packing
, texObj
, texImage
);
1164 st_CompressedTexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1165 GLint xoffset
, GLsizei width
,
1167 GLsizei imageSize
, const GLvoid
*data
,
1168 struct gl_texture_object
*texObj
,
1169 struct gl_texture_image
*texImage
)
1176 st_CompressedTexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1177 GLint xoffset
, GLint yoffset
,
1178 GLsizei width
, GLint height
,
1180 GLsizei imageSize
, const GLvoid
*data
,
1181 struct gl_texture_object
*texObj
,
1182 struct gl_texture_image
*texImage
)
1184 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1188 enum pipe_format pformat
= stImage
->pt
->format
;
1191 unsigned face
= _mesa_tex_target_to_face(target
);
1193 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1194 PIPE_TRANSFER_WRITE
);
1195 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
1196 PIPE_TRANSFER_WRITE
,
1200 srcBlockStride
= util_format_get_stride(pformat
, width
);
1201 dstBlockStride
= stImage
->transfer
->stride
;
1203 assert(stImage
->pt
);
1204 /* TODO find good values for block and strides */
1205 /* TODO also adjust texImage->data for yoffset/xoffset */
1209 if (!texImage
->Data
) {
1210 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1214 assert(xoffset
% util_format_get_blockwidth(pformat
) == 0);
1215 assert(yoffset
% util_format_get_blockheight(pformat
) == 0);
1216 assert(width
% util_format_get_blockwidth(pformat
) == 0);
1217 assert(height
% util_format_get_blockheight(pformat
) == 0);
1219 for (y
= 0; y
< height
; y
+= util_format_get_blockheight(pformat
)) {
1220 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1221 const char *src
= (const char*)data
+ srcBlockStride
* util_format_get_nblocksy(pformat
, y
);
1222 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* util_format_get_nblocksy(pformat
, y
);
1223 memcpy(dst
, src
, util_format_get_stride(pformat
, width
));
1227 st_texture_image_unmap(ctx
->st
, stImage
);
1228 texImage
->Data
= NULL
;
1234 st_CompressedTexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1235 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1236 GLsizei width
, GLint height
, GLint depth
,
1238 GLsizei imageSize
, const GLvoid
*data
,
1239 struct gl_texture_object
*texObj
,
1240 struct gl_texture_image
*texImage
)
1248 * Do a CopyTexSubImage operation using a read transfer from the source,
1249 * a write transfer to the destination and get_tile()/put_tile() to access
1250 * the pixels/texels.
1252 * Note: srcY=0=TOP of renderbuffer
1255 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1256 struct st_renderbuffer
*strb
,
1257 struct st_texture_image
*stImage
,
1259 GLint destX
, GLint destY
, GLint destZ
,
1260 GLint srcX
, GLint srcY
,
1261 GLsizei width
, GLsizei height
)
1263 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1264 struct pipe_screen
*screen
= pipe
->screen
;
1265 struct pipe_transfer
*src_trans
;
1267 enum pipe_transfer_usage transfer_usage
;
1269 if (ST_DEBUG
& DEBUG_FALLBACK
)
1270 debug_printf("%s: fallback processing\n", __FUNCTION__
);
1272 assert(width
<= MAX_WIDTH
);
1274 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1275 srcY
= strb
->Base
.Height
- srcY
- height
;
1278 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1285 if ((baseFormat
== GL_DEPTH_COMPONENT
||
1286 baseFormat
== GL_DEPTH_STENCIL
) &&
1287 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1288 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1290 transfer_usage
= PIPE_TRANSFER_WRITE
;
1292 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1295 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, transfer_usage
,
1296 destX
, destY
, width
, height
);
1298 if (baseFormat
== GL_DEPTH_COMPONENT
||
1299 baseFormat
== GL_DEPTH_STENCIL
) {
1300 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1301 ctx
->Pixel
.DepthBias
!= 0.0F
);
1304 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1305 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1314 /* To avoid a large temp memory allocation, do copy row by row */
1315 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1316 uint data
[MAX_WIDTH
];
1317 pipe_get_tile_z(src_trans
, 0, srcY
, width
, 1, data
);
1319 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1321 pipe_put_tile_z(stImage
->transfer
, 0, row
, width
, 1, data
);
1327 (GLfloat
*) malloc(width
* height
* 4 * sizeof(GLfloat
));
1329 if (tempSrc
&& texDest
) {
1330 const GLint dims
= 2;
1331 const GLint dstRowStride
= stImage
->transfer
->stride
;
1332 struct gl_texture_image
*texImage
= &stImage
->base
;
1333 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1335 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1336 unpack
.Invert
= GL_TRUE
;
1339 /* get float/RGBA image from framebuffer */
1340 /* XXX this usually involves a lot of int/float conversion.
1341 * try to avoid that someday.
1343 pipe_get_tile_rgba(src_trans
, 0, 0, width
, height
, tempSrc
);
1345 /* Store into texture memory.
1346 * Note that this does some special things such as pixel transfer
1347 * ops and format conversion. In particular, if the dest tex format
1348 * is actually RGBA but the user created the texture as GL_RGB we
1349 * need to fill-in/override the alpha channel with 1.0.
1351 _mesa_texstore(ctx
, dims
,
1352 texImage
->_BaseFormat
,
1353 texImage
->TexFormat
,
1357 texImage
->ImageOffsets
,
1359 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1363 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1370 st_texture_image_unmap(ctx
->st
, stImage
);
1371 screen
->tex_transfer_destroy(src_trans
);
1377 * If the format of the src renderbuffer and the format of the dest
1378 * texture are compatible (in terms of blitting), return a TGSI writemask
1379 * to be used during the blit.
1380 * If the src/dest are incompatible, return 0.
1383 compatible_src_dst_formats(GLcontext
*ctx
,
1384 const struct gl_renderbuffer
*src
,
1385 const struct gl_texture_image
*dst
)
1387 /* Get logical base formats for the src and dest.
1388 * That is, use the user-requested formats and not the actual, device-
1390 * For example, the user may have requested an A8 texture but the
1391 * driver may actually be using an RGBA texture format. When we
1392 * copy/blit to that texture, we only want to copy the Alpha channel
1393 * and not the RGB channels.
1395 * Similarly, when the src FBO was created an RGB format may have been
1396 * requested but the driver actually chose an RGBA format. In that case,
1397 * we don't want to copy the undefined Alpha channel to the dest texture
1398 * (it should be 1.0).
1400 const GLenum srcFormat
= _mesa_base_fbo_format(ctx
, src
->InternalFormat
);
1401 const GLenum dstFormat
= _mesa_base_tex_format(ctx
, dst
->InternalFormat
);
1404 * XXX when we have red-only and red/green renderbuffers we'll need
1405 * to add more cases here (or implement a general-purpose routine that
1406 * queries the existance of the R,G,B,A channels in the src and dest).
1408 if (srcFormat
== dstFormat
) {
1409 /* This is the same as matching_base_formats, which should
1410 * always pass, as it did previously.
1412 return TGSI_WRITEMASK_XYZW
;
1414 else if (srcFormat
== GL_RGB
&& dstFormat
== GL_RGBA
) {
1415 /* Make sure that A in the dest is 1. The actual src format
1416 * may be RGBA and have undefined A values.
1418 return TGSI_WRITEMASK_XYZ
;
1420 else if (srcFormat
== GL_RGBA
&& dstFormat
== GL_RGB
) {
1421 /* Make sure that A in the dest is 1. The actual dst format
1422 * may be RGBA and will need A=1 to provide proper alpha values
1423 * when sampled later.
1425 return TGSI_WRITEMASK_XYZ
;
1428 if (ST_DEBUG
& DEBUG_FALLBACK
)
1429 debug_printf("%s failed for src %s, dst %s\n",
1431 _mesa_lookup_enum_by_nr(srcFormat
),
1432 _mesa_lookup_enum_by_nr(dstFormat
));
1443 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1444 * Note that the region to copy has already been clipped so we know we
1445 * won't read from outside the source renderbuffer's bounds.
1447 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1450 st_copy_texsubimage(GLcontext
*ctx
,
1451 GLenum target
, GLint level
,
1452 GLint destX
, GLint destY
, GLint destZ
,
1453 GLint srcX
, GLint srcY
,
1454 GLsizei width
, GLsizei height
)
1456 struct gl_texture_unit
*texUnit
=
1457 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1458 struct gl_texture_object
*texObj
=
1459 _mesa_select_tex_object(ctx
, texUnit
, target
);
1460 struct gl_texture_image
*texImage
=
1461 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1462 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1463 const GLenum texBaseFormat
= texImage
->_BaseFormat
;
1464 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1465 struct st_renderbuffer
*strb
;
1466 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1467 struct pipe_screen
*screen
= pipe
->screen
;
1468 enum pipe_format dest_format
, src_format
;
1469 GLboolean use_fallback
= GL_TRUE
;
1470 GLboolean matching_base_formats
;
1471 GLuint format_writemask
;
1472 struct pipe_surface
*dest_surface
= NULL
;
1473 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1475 /* any rendering in progress must flushed before we grab the fb image */
1476 st_flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
1478 /* make sure finalize_textures has been called?
1480 if (0) st_validate_state(ctx
->st
);
1482 /* determine if copying depth or color data */
1483 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1484 texBaseFormat
== GL_DEPTH_STENCIL
) {
1485 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1488 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1489 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1492 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1493 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1521 if (width
< 0 || height
< 0)
1526 assert(strb
->surface
);
1527 assert(stImage
->pt
);
1529 src_format
= strb
->surface
->format
;
1530 dest_format
= stImage
->pt
->format
;
1533 * Determine if the src framebuffer and dest texture have the same
1534 * base format. We need this to detect a case such as the framebuffer
1535 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1536 * texture format stores RGBA we need to set A=1 (overriding the
1537 * framebuffer's alpha values). We can't do that with the blit or
1538 * textured-quad paths.
1540 matching_base_formats
=
1541 (_mesa_get_format_base_format(strb
->Base
.Format
) ==
1542 _mesa_get_format_base_format(texImage
->TexFormat
));
1543 format_writemask
= compatible_src_dst_formats(ctx
, &strb
->Base
, texImage
);
1545 if (ctx
->_ImageTransferState
== 0x0) {
1547 if (pipe
->surface_copy
&&
1548 matching_base_formats
&&
1549 src_format
== dest_format
&&
1552 /* use surface_copy() / blit */
1554 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1555 stImage
->face
, stImage
->level
,
1557 PIPE_BUFFER_USAGE_GPU_WRITE
);
1559 /* for surface_copy(), y=0=top, always */
1560 pipe
->surface_copy(pipe
,
1569 use_fallback
= GL_FALSE
;
1571 else if (format_writemask
&&
1572 texBaseFormat
!= GL_DEPTH_COMPONENT
&&
1573 texBaseFormat
!= GL_DEPTH_STENCIL
&&
1574 screen
->is_format_supported(screen
, src_format
,
1576 PIPE_TEXTURE_USAGE_SAMPLER
,
1578 screen
->is_format_supported(screen
, dest_format
,
1580 PIPE_TEXTURE_USAGE_RENDER_TARGET
,
1582 /* draw textured quad to do the copy */
1585 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1586 stImage
->face
, stImage
->level
,
1588 PIPE_BUFFER_USAGE_GPU_WRITE
);
1591 srcY1
= strb
->Base
.Height
- srcY
- height
;
1592 srcY0
= srcY1
+ height
;
1596 srcY1
= srcY0
+ height
;
1598 util_blit_pixels_writemask(ctx
->st
->blit
,
1601 srcX
+ width
, srcY1
,
1604 destX
+ width
, destY
+ height
,
1605 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1607 use_fallback
= GL_FALSE
;
1611 pipe_surface_reference(&dest_surface
, NULL
);
1615 /* software fallback */
1616 fallback_copy_texsubimage(ctx
, target
, level
,
1617 strb
, stImage
, texBaseFormat
,
1618 destX
, destY
, destZ
,
1619 srcX
, srcY
, width
, height
);
1626 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1627 GLenum internalFormat
,
1628 GLint x
, GLint y
, GLsizei width
, GLint border
)
1630 struct gl_texture_unit
*texUnit
=
1631 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1632 struct gl_texture_object
*texObj
=
1633 _mesa_select_tex_object(ctx
, texUnit
, target
);
1634 struct gl_texture_image
*texImage
=
1635 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1637 /* Setup or redefine the texture object, texture and texture
1638 * image. Don't populate yet.
1640 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1642 GL_RGBA
, CHAN_TYPE
, NULL
,
1643 &ctx
->DefaultPacking
, texObj
, texImage
);
1645 st_copy_texsubimage(ctx
, target
, level
,
1646 0, 0, 0, /* destX,Y,Z */
1647 x
, y
, width
, 1); /* src X, Y, size */
1652 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1653 GLenum internalFormat
,
1654 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1657 struct gl_texture_unit
*texUnit
=
1658 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1659 struct gl_texture_object
*texObj
=
1660 _mesa_select_tex_object(ctx
, texUnit
, target
);
1661 struct gl_texture_image
*texImage
=
1662 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1664 /* Setup or redefine the texture object, texture and texture
1665 * image. Don't populate yet.
1667 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1668 width
, height
, border
,
1669 GL_RGBA
, CHAN_TYPE
, NULL
,
1670 &ctx
->DefaultPacking
, texObj
, texImage
);
1672 st_copy_texsubimage(ctx
, target
, level
,
1673 0, 0, 0, /* destX,Y,Z */
1674 x
, y
, width
, height
); /* src X, Y, size */
1679 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1680 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1682 const GLint yoffset
= 0, zoffset
= 0;
1683 const GLsizei height
= 1;
1684 st_copy_texsubimage(ctx
, target
, level
,
1685 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1686 x
, y
, width
, height
); /* src X, Y, size */
1691 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1692 GLint xoffset
, GLint yoffset
,
1693 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1695 const GLint zoffset
= 0;
1696 st_copy_texsubimage(ctx
, target
, level
,
1697 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1698 x
, y
, width
, height
); /* src X, Y, size */
1703 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1704 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1705 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1707 st_copy_texsubimage(ctx
, target
, level
,
1708 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1709 x
, y
, width
, height
); /* src X, Y, size */
1714 copy_image_data_to_texture(struct st_context
*st
,
1715 struct st_texture_object
*stObj
,
1717 struct st_texture_image
*stImage
)
1720 /* Copy potentially with the blitter:
1722 st_texture_image_copy(st
->pipe
,
1723 stObj
->pt
, dstLevel
, /* dest texture, level */
1724 stImage
->pt
, /* src texture */
1727 pipe_texture_reference(&stImage
->pt
, NULL
);
1729 else if (stImage
->base
.Data
) {
1730 /* More straightforward upload.
1732 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1733 PIPE_TRANSFER_WRITE
);
1735 st_texture_image_data(st
,
1740 stImage
->base
.RowStride
*
1741 util_format_get_blocksize(stObj
->pt
->format
),
1742 stImage
->base
.RowStride
*
1743 stImage
->base
.Height
*
1744 util_format_get_blocksize(stObj
->pt
->format
));
1745 _mesa_align_free(stImage
->base
.Data
);
1746 stImage
->base
.Data
= NULL
;
1749 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
1754 * Called during state validation. When this function is finished,
1755 * the texture object should be ready for rendering.
1756 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1759 st_finalize_texture(GLcontext
*ctx
,
1760 struct pipe_context
*pipe
,
1761 struct gl_texture_object
*tObj
,
1762 GLboolean
*needFlush
)
1764 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1765 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1766 GLuint blockSize
, face
;
1767 struct st_texture_image
*firstImage
;
1769 *needFlush
= GL_FALSE
;
1771 if (stObj
->base
._Complete
) {
1772 /* The texture is complete and we know exactly how many mipmap levels
1773 * are present/needed. This is conditional because we may be called
1774 * from the st_generate_mipmap() function when the texture object is
1775 * incomplete. In that case, we'll have set stObj->lastLevel before
1778 if (stObj
->base
.MinFilter
== GL_LINEAR
||
1779 stObj
->base
.MinFilter
== GL_NEAREST
)
1780 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1782 stObj
->lastLevel
= stObj
->base
._MaxLevel
- stObj
->base
.BaseLevel
;
1785 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1787 /* If both firstImage and stObj point to a texture which can contain
1788 * all active images, favour firstImage. Note that because of the
1789 * completeness requirement, we know that the image dimensions
1792 if (firstImage
->pt
&&
1793 firstImage
->pt
!= stObj
->pt
&&
1794 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1795 pipe_texture_reference(&stObj
->pt
, firstImage
->pt
);
1798 /* bytes per pixel block (blocks are usually 1x1) */
1799 blockSize
= _mesa_get_format_bytes(firstImage
->base
.TexFormat
);
1801 /* If we already have a gallium texture, check that it matches the texture
1802 * object's format, target, size, num_levels, etc.
1805 const enum pipe_format fmt
=
1806 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1807 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1808 stObj
->pt
->format
!= fmt
||
1809 stObj
->pt
->last_level
< stObj
->lastLevel
||
1810 stObj
->pt
->width0
!= firstImage
->base
.Width2
||
1811 stObj
->pt
->height0
!= firstImage
->base
.Height2
||
1812 stObj
->pt
->depth0
!= firstImage
->base
.Depth2
)
1814 pipe_texture_reference(&stObj
->pt
, NULL
);
1815 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1819 /* May need to create a new gallium texture:
1822 const enum pipe_format fmt
=
1823 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1824 GLuint usage
= default_usage(fmt
);
1826 stObj
->pt
= st_texture_create(ctx
->st
,
1827 gl_target_to_pipe(stObj
->base
.Target
),
1830 firstImage
->base
.Width2
,
1831 firstImage
->base
.Height2
,
1832 firstImage
->base
.Depth2
,
1836 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1841 /* Pull in any images not in the object's texture:
1843 for (face
= 0; face
< nr_faces
; face
++) {
1845 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1846 struct st_texture_image
*stImage
=
1847 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1849 /* Need to import images in main memory or held in other textures.
1851 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1852 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1853 *needFlush
= GL_TRUE
;
1863 * Returns pointer to a default/dummy texture.
1864 * This is typically used when the current shader has tex/sample instructions
1865 * but the user has not provided a (any) texture(s).
1867 struct gl_texture_object
*
1868 st_get_default_texture(struct st_context
*st
)
1870 if (!st
->default_texture
) {
1871 static const GLenum target
= GL_TEXTURE_2D
;
1872 GLubyte pixels
[16][16][4];
1873 struct gl_texture_object
*texObj
;
1874 struct gl_texture_image
*texImg
;
1877 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1878 * when attempting to sample incomplete textures.
1880 for (i
= 0; i
< 16; i
++) {
1881 for (j
= 0; j
< 16; j
++) {
1882 pixels
[i
][j
][0] = 0;
1883 pixels
[i
][j
][1] = 0;
1884 pixels
[i
][j
][2] = 0;
1885 pixels
[i
][j
][3] = 255;
1889 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1891 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1893 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1894 16, 16, 1, 0, /* w, h, d, border */
1897 st_TexImage(st
->ctx
, 2, target
,
1898 0, GL_RGBA
, /* level, intformat */
1899 16, 16, 1, 0, /* w, h, d, border */
1900 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1901 &st
->ctx
->DefaultPacking
,
1905 texObj
->MinFilter
= GL_NEAREST
;
1906 texObj
->MagFilter
= GL_NEAREST
;
1907 texObj
->_Complete
= GL_TRUE
;
1909 st
->default_texture
= texObj
;
1911 return st
->default_texture
;
1916 st_init_texture_functions(struct dd_function_table
*functions
)
1918 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1919 functions
->TexImage1D
= st_TexImage1D
;
1920 functions
->TexImage2D
= st_TexImage2D
;
1921 functions
->TexImage3D
= st_TexImage3D
;
1922 functions
->TexSubImage1D
= st_TexSubImage1D
;
1923 functions
->TexSubImage2D
= st_TexSubImage2D
;
1924 functions
->TexSubImage3D
= st_TexSubImage3D
;
1925 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1926 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1927 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1928 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1929 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1930 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1931 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1932 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1933 functions
->GenerateMipmap
= st_generate_mipmap
;
1935 functions
->GetTexImage
= st_GetTexImage
;
1937 /* compressed texture functions */
1938 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1939 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1941 functions
->NewTextureObject
= st_NewTextureObject
;
1942 functions
->NewTextureImage
= st_NewTextureImage
;
1943 functions
->DeleteTexture
= st_DeleteTextureObject
;
1944 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1945 functions
->UpdateTexturePalette
= 0;
1947 functions
->TextureMemCpy
= do_memcpy
;
1949 /* XXX Temporary until we can query pipe's texture sizes */
1950 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;