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/image.h"
35 #include "main/imports.h"
36 #include "main/macros.h"
37 #include "main/mipmap.h"
38 #include "main/pixel.h"
39 #include "main/texcompress.h"
40 #include "main/texformat.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_context.h"
47 #include "state_tracker/st_cb_fbo.h"
48 #include "state_tracker/st_cb_texture.h"
49 #include "state_tracker/st_format.h"
50 #include "state_tracker/st_public.h"
51 #include "state_tracker/st_texture.h"
52 #include "state_tracker/st_gen_mipmap.h"
53 #include "state_tracker/st_inlines.h"
54 #include "state_tracker/st_atom.h"
56 #include "pipe/p_context.h"
57 #include "pipe/p_defines.h"
58 #include "pipe/p_inlines.h"
59 #include "pipe/p_shader_tokens.h"
60 #include "util/u_tile.h"
61 #include "util/u_blit.h"
62 #include "util/u_surface.h"
65 #define DBG if (0) printf
68 static enum pipe_texture_target
69 gl_target_to_pipe(GLenum target
)
73 return PIPE_TEXTURE_1D
;
76 case GL_TEXTURE_RECTANGLE_NV
:
77 return PIPE_TEXTURE_2D
;
80 return PIPE_TEXTURE_3D
;
82 case GL_TEXTURE_CUBE_MAP_ARB
:
83 return PIPE_TEXTURE_CUBE
;
93 * Return nominal bytes per texel for a compressed format, 0 for non-compressed
97 compressed_num_bytes(GLuint mesaFormat
)
100 #if FEATURE_texture_fxt1
101 case MESA_FORMAT_RGB_FXT1
:
102 case MESA_FORMAT_RGBA_FXT1
:
104 #if FEATURE_texture_s3tc
105 case MESA_FORMAT_RGB_DXT1
:
106 case MESA_FORMAT_RGBA_DXT1
:
108 case MESA_FORMAT_RGBA_DXT3
:
109 case MESA_FORMAT_RGBA_DXT5
:
119 is_compressed_mesa_format(const struct gl_texture_format
*format
)
121 switch (format
->MesaFormat
) {
122 case MESA_FORMAT_RGB_DXT1
:
123 case MESA_FORMAT_RGBA_DXT1
:
124 case MESA_FORMAT_RGBA_DXT3
:
125 case MESA_FORMAT_RGBA_DXT5
:
126 case MESA_FORMAT_SRGB_DXT1
:
127 case MESA_FORMAT_SRGBA_DXT1
:
128 case MESA_FORMAT_SRGBA_DXT3
:
129 case MESA_FORMAT_SRGBA_DXT5
:
137 /** called via ctx->Driver.NewTextureImage() */
138 static struct gl_texture_image
*
139 st_NewTextureImage(GLcontext
* ctx
)
141 DBG("%s\n", __FUNCTION__
);
143 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
147 /** called via ctx->Driver.NewTextureObject() */
148 static struct gl_texture_object
*
149 st_NewTextureObject(GLcontext
* ctx
, GLuint name
, GLenum target
)
151 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
153 DBG("%s\n", __FUNCTION__
);
154 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
159 /** called via ctx->Driver.DeleteTextureImage() */
161 st_DeleteTextureObject(GLcontext
*ctx
,
162 struct gl_texture_object
*texObj
)
164 struct st_texture_object
*stObj
= st_texture_object(texObj
);
166 pipe_texture_reference(&stObj
->pt
, NULL
);
168 _mesa_delete_texture_object(ctx
, texObj
);
172 /** called via ctx->Driver.FreeTexImageData() */
174 st_FreeTextureImageData(GLcontext
* ctx
, struct gl_texture_image
*texImage
)
176 struct st_texture_image
*stImage
= st_texture_image(texImage
);
178 DBG("%s\n", __FUNCTION__
);
181 pipe_texture_reference(&stImage
->pt
, NULL
);
184 if (texImage
->Data
) {
185 _mesa_align_free(texImage
->Data
);
186 texImage
->Data
= NULL
;
192 * From linux kernel i386 header files, copes with odd sizes better
193 * than COPY_DWORDS would:
194 * XXX Put this in src/mesa/main/imports.h ???
196 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
198 __memcpy(void *to
, const void *from
, size_t n
)
201 __asm__
__volatile__("rep ; movsl\n\t"
205 "1:\ttestb $1,%b4\n\t"
207 "movsb\n" "2:":"=&c"(d0
), "=&D"(d1
), "=&S"(d2
)
208 :"0"(n
/ 4), "q"(n
), "1"((long) to
), "2"((long) from
)
213 #define __memcpy(a,b,c) memcpy(a,b,c)
218 * The system memcpy (at least on ubuntu 5.10) has problems copying
219 * to agp (writecombined) memory from a source which isn't 64-byte
220 * aligned - there is a 4x performance falloff.
222 * The x86 __memcpy is immune to this but is slightly slower
223 * (10%-ish) than the system memcpy.
225 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
226 * isn't much faster than x86_memcpy for agp copies.
228 * TODO: switch dynamically.
231 do_memcpy(void *dest
, const void *src
, size_t n
)
233 if ((((unsigned long) src
) & 63) || (((unsigned long) dest
) & 63)) {
234 return __memcpy(dest
, src
, n
);
237 return memcpy(dest
, src
, n
);
241 static INLINE
unsigned
252 * Return default texture usage bitmask for the given texture format.
255 default_usage(enum pipe_format fmt
)
257 GLuint usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
258 if (pf_is_depth_stencil(fmt
))
259 usage
|= PIPE_TEXTURE_USAGE_DEPTH_STENCIL
;
261 usage
|= PIPE_TEXTURE_USAGE_RENDER_TARGET
;
267 * Allocate a pipe_texture object for the given st_texture_object using
268 * the given st_texture_image to guess the mipmap size/levels.
271 * Otherwise, store it in memory if (Border != 0) or (any dimension ==
274 * Otherwise, if max_level >= level >= min_level, create texture with
275 * space for images from min_level down to max_level.
277 * Otherwise, create texture with space for images from (level 0)..(1x1).
278 * Consider pruning this texture at a validation if the saving is worth it.
281 guess_and_alloc_texture(struct st_context
*st
,
282 struct st_texture_object
*stObj
,
283 const struct st_texture_image
*stImage
)
287 GLuint width
= stImage
->base
.Width2
; /* size w/out border */
288 GLuint height
= stImage
->base
.Height2
;
289 GLuint depth
= stImage
->base
.Depth2
;
291 enum pipe_format fmt
;
293 DBG("%s\n", __FUNCTION__
);
298 (GLint
) stImage
->level
> stObj
->base
.BaseLevel
&&
299 (stImage
->base
.Width
== 1 ||
300 (stObj
->base
.Target
!= GL_TEXTURE_1D
&&
301 stImage
->base
.Height
== 1) ||
302 (stObj
->base
.Target
== GL_TEXTURE_3D
&&
303 stImage
->base
.Depth
== 1)))
306 /* If this image disrespects BaseLevel, allocate from level zero.
307 * Usually BaseLevel == 0, so it's unlikely to happen.
309 if ((GLint
) stImage
->level
< stObj
->base
.BaseLevel
)
312 firstLevel
= stObj
->base
.BaseLevel
;
315 /* Figure out image dimensions at start level.
317 for (i
= stImage
->level
; i
> firstLevel
; i
--) {
326 if (width
== 0 || height
== 0 || depth
== 0) {
327 /* no texture needed */
331 /* Guess a reasonable value for lastLevel. This is probably going
332 * to be wrong fairly often and might mean that we have to look at
333 * resizable buffers, or require that buffers implement lazy
334 * pagetable arrangements.
336 if ((stObj
->base
.MinFilter
== GL_NEAREST
||
337 stObj
->base
.MinFilter
== GL_LINEAR
||
338 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
339 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
340 stImage
->level
== firstLevel
) {
341 lastLevel
= firstLevel
;
344 GLuint l2width
= logbase2(width
);
345 GLuint l2height
= logbase2(height
);
346 GLuint l2depth
= logbase2(depth
);
347 lastLevel
= firstLevel
+ MAX2(MAX2(l2width
, l2height
), l2depth
);
350 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
->MesaFormat
);
352 usage
= default_usage(fmt
);
354 stObj
->pt
= st_texture_create(st
,
355 gl_target_to_pipe(stObj
->base
.Target
),
363 DBG("%s - success\n", __FUNCTION__
);
368 * Adjust pixel unpack params and image dimensions to strip off the
370 * Gallium doesn't support texture borders. They've seldem been used
371 * and seldom been implemented correctly anyway.
372 * \param unpackNew returns the new pixel unpack parameters
375 strip_texture_border(GLint border
,
376 GLint
*width
, GLint
*height
, GLint
*depth
,
377 const struct gl_pixelstore_attrib
*unpack
,
378 struct gl_pixelstore_attrib
*unpackNew
)
380 assert(border
> 0); /* sanity check */
382 *unpackNew
= *unpack
;
384 if (unpackNew
->RowLength
== 0)
385 unpackNew
->RowLength
= *width
;
387 if (depth
&& unpackNew
->ImageHeight
== 0)
388 unpackNew
->ImageHeight
= *height
;
390 unpackNew
->SkipPixels
+= border
;
392 unpackNew
->SkipRows
+= border
;
394 unpackNew
->SkipImages
+= border
;
397 *width
= *width
- 2 * border
;
398 if (height
&& *height
>= 3)
399 *height
= *height
- 2 * border
;
400 if (depth
&& *depth
>= 3)
401 *depth
= *depth
- 2 * border
;
406 * Try to do texture compression via rendering. If the Gallium driver
407 * can render into a compressed surface this will allow us to do texture
409 * \return GL_TRUE for success, GL_FALSE for failure
412 compress_with_blit(GLcontext
* ctx
,
413 GLenum target
, GLint level
,
414 GLint xoffset
, GLint yoffset
, GLint zoffset
,
415 GLint width
, GLint height
, GLint depth
,
416 GLenum format
, GLenum type
, const void *pixels
,
417 const struct gl_pixelstore_attrib
*unpack
,
418 struct gl_texture_image
*texImage
)
420 const GLuint dstImageOffsets
[1] = {0};
421 struct st_texture_image
*stImage
= st_texture_image(texImage
);
422 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
423 const struct gl_texture_format
*mesa_format
;
424 struct pipe_texture templ
;
425 struct pipe_texture
*src_tex
;
426 struct pipe_surface
*dst_surface
;
427 struct pipe_transfer
*tex_xfer
;
432 /* XXX: Can this happen? Should we assert? */
436 /* get destination surface (in the compressed texture) */
437 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
438 stImage
->face
, stImage
->level
, 0,
439 PIPE_BUFFER_USAGE_GPU_WRITE
);
441 /* can't render into this format (or other problem) */
445 /* Choose format for the temporary RGBA texture image.
447 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
452 /* Create the temporary source texture
454 memset(&templ
, 0, sizeof(templ
));
455 templ
.target
= PIPE_TEXTURE_2D
;
456 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
->MesaFormat
);
457 pf_get_block(templ
.format
, &templ
.block
);
458 templ
.width
[0] = width
;
459 templ
.height
[0] = height
;
461 templ
.last_level
= 0;
462 templ
.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
463 src_tex
= screen
->texture_create(screen
, &templ
);
468 /* Put user's tex data into the temporary texture
470 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
471 0, 0, 0, /* face, level are zero */
473 0, 0, width
, height
); /* x, y, w, h */
474 map
= screen
->transfer_map(screen
, tex_xfer
);
476 mesa_format
->StoreImage(ctx
, 2, GL_RGBA
, mesa_format
,
478 0, 0, 0, /* dest x/y/z offset */
479 tex_xfer
->stride
, /* dest row stride (bytes) */
480 dstImageOffsets
, /* image offsets (for 3D only) */
481 width
, height
, 1, /* size */
482 format
, type
, /* source format/type */
483 pixels
, /* source data */
484 unpack
); /* source data packing */
486 screen
->transfer_unmap(screen
, tex_xfer
);
487 screen
->tex_transfer_destroy(tex_xfer
);
489 /* copy / compress image */
490 util_blit_pixels_tex(ctx
->st
->blit
,
491 src_tex
, /* pipe_texture (src) */
492 0, 0, /* src x0, y0 */
493 width
, height
, /* src x1, y1 */
494 dst_surface
, /* pipe_surface (dst) */
495 xoffset
, yoffset
, /* dst x0, y0 */
496 xoffset
+ width
, /* dst x1 */
497 yoffset
+ height
, /* dst y1 */
499 PIPE_TEX_MIPFILTER_NEAREST
);
501 pipe_surface_reference(&dst_surface
, NULL
);
502 pipe_texture_reference(&src_tex
, NULL
);
509 * Do glTexImage1/2/3D().
512 st_TexImage(GLcontext
* ctx
,
514 GLenum target
, GLint level
,
515 GLint internalFormat
,
516 GLint width
, GLint height
, GLint depth
,
518 GLenum format
, GLenum type
, const void *pixels
,
519 const struct gl_pixelstore_attrib
*unpack
,
520 struct gl_texture_object
*texObj
,
521 struct gl_texture_image
*texImage
,
522 GLsizei imageSize
, GLboolean compressed_src
)
524 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
525 struct st_texture_object
*stObj
= st_texture_object(texObj
);
526 struct st_texture_image
*stImage
= st_texture_image(texImage
);
527 GLint postConvWidth
, postConvHeight
;
528 GLint texelBytes
, sizeInBytes
;
529 GLuint dstRowStride
= 0;
530 struct gl_pixelstore_attrib unpackNB
;
531 enum pipe_transfer_usage transfer_usage
= 0;
533 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
534 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
536 /* gallium does not support texture borders, strip it off */
538 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
540 texImage
->Width
= width
;
541 texImage
->Height
= height
;
542 texImage
->Depth
= depth
;
543 texImage
->Border
= 0;
547 postConvWidth
= width
;
548 postConvHeight
= height
;
550 stImage
->face
= _mesa_tex_target_to_face(target
);
551 stImage
->level
= level
;
554 if (ctx
->_ImageTransferState
& IMAGE_CONVOLUTION_BIT
) {
555 _mesa_adjust_image_for_convolution(ctx
, dims
, &postConvWidth
,
560 /* choose the texture format */
561 texImage
->TexFormat
= st_ChooseTextureFormat(ctx
, internalFormat
,
564 _mesa_set_fetch_functions(texImage
, dims
);
566 if (texImage
->TexFormat
->TexelBytes
== 0) {
567 /* must be a compressed format */
569 texImage
->IsCompressed
= GL_TRUE
;
570 texImage
->CompressedSize
=
571 ctx
->Driver
.CompressedTextureSize(ctx
, texImage
->Width
,
572 texImage
->Height
, texImage
->Depth
,
573 texImage
->TexFormat
->MesaFormat
);
576 texelBytes
= texImage
->TexFormat
->TexelBytes
;
578 /* Minimum pitch of 32 bytes */
579 if (postConvWidth
* texelBytes
< 32) {
580 postConvWidth
= 32 / texelBytes
;
581 texImage
->RowStride
= postConvWidth
;
584 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
585 /*assert(texImage->RowStride == postConvWidth);*/
588 /* Release the reference to a potentially orphaned buffer.
589 * Release any old malloced memory.
592 pipe_texture_reference(&stImage
->pt
, NULL
);
593 assert(!texImage
->Data
);
595 else if (texImage
->Data
) {
596 _mesa_align_free(texImage
->Data
);
599 if (width
== 0 || height
== 0 || depth
== 0) {
600 /* stop after freeing old image */
604 /* If this is the only mipmap level in the texture, could call
605 * bmBufferData with NULL data to free the old block and avoid
606 * waiting on any outstanding fences.
609 if (stObj
->teximage_realloc
||
610 level
> (GLint
) stObj
->pt
->last_level
||
611 (stObj
->pt
->last_level
== level
&&
612 stObj
->pt
->target
!= PIPE_TEXTURE_CUBE
&&
613 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
614 stImage
->face
, stImage
->level
))) {
616 pipe_texture_reference(&stObj
->pt
, NULL
);
618 stObj
->teximage_realloc
= FALSE
;
623 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
625 /* Probably out of memory.
626 * Try flushing any pending rendering, then retry.
629 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
631 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
637 assert(!stImage
->pt
);
640 st_texture_match_image(stObj
->pt
, &stImage
->base
,
641 stImage
->face
, stImage
->level
)) {
643 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
648 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
650 /* st_CopyTexImage calls this function with pixels == NULL, with
651 * the expectation that the texture will be set up but nothing
652 * more will be done. This is where those calls return:
654 if (compressed_src
) {
655 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
657 "glCompressedTexImage");
660 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
662 pixels
, unpack
, "glTexImage");
665 /* Note: we can't check for pixels==NULL until after we've allocated
666 * memory for the texture.
669 /* See if we can do texture compression with a blit/render.
671 if (!compressed_src
&&
673 is_compressed_mesa_format(texImage
->TexFormat
) &&
674 screen
->is_format_supported(screen
,
677 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
681 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
682 format
, type
, pixels
, unpack
, texImage
)) {
688 if (format
== GL_DEPTH_COMPONENT
&&
689 pf_is_depth_and_stencil(stImage
->pt
->format
))
690 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
692 transfer_usage
= PIPE_TRANSFER_WRITE
;
694 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
695 transfer_usage
, 0, 0,
697 stImage
->base
.Height
);
698 if(stImage
->transfer
)
699 dstRowStride
= stImage
->transfer
->stride
;
702 /* Allocate regular memory and store the image there temporarily. */
703 if (texImage
->IsCompressed
) {
704 sizeInBytes
= texImage
->CompressedSize
;
706 _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
, width
);
710 dstRowStride
= postConvWidth
* texelBytes
;
711 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
714 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
717 if (!texImage
->Data
) {
718 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
725 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
726 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
728 /* Copy data. Would like to know when it's ok for us to eg. use
729 * the blitter to copy. Or, use the hardware to do the format
730 * conversion and copy:
732 if (compressed_src
) {
733 memcpy(texImage
->Data
, pixels
, imageSize
);
736 const GLuint srcImageStride
=
737 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
739 const GLubyte
*src
= (const GLubyte
*) pixels
;
741 for (i
= 0; i
< depth
; i
++) {
742 if (!texImage
->TexFormat
->StoreImage(ctx
, dims
,
743 texImage
->_BaseFormat
,
746 0, 0, 0, /* dstX/Y/Zoffset */
748 texImage
->ImageOffsets
,
750 format
, type
, src
, unpack
)) {
751 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
754 if (stImage
->pt
&& i
+ 1 < depth
) {
755 /* unmap this slice */
756 st_texture_image_unmap(ctx
->st
, stImage
);
757 /* map next slice of 3D texture */
758 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
759 transfer_usage
, 0, 0,
761 stImage
->base
.Height
);
762 src
+= srcImageStride
;
768 _mesa_unmap_teximage_pbo(ctx
, unpack
);
770 if (stImage
->pt
&& texImage
->Data
) {
771 st_texture_image_unmap(ctx
->st
, stImage
);
772 texImage
->Data
= NULL
;
775 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
776 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
782 st_TexImage3D(GLcontext
* ctx
,
783 GLenum target
, GLint level
,
784 GLint internalFormat
,
785 GLint width
, GLint height
, GLint depth
,
787 GLenum format
, GLenum type
, const void *pixels
,
788 const struct gl_pixelstore_attrib
*unpack
,
789 struct gl_texture_object
*texObj
,
790 struct gl_texture_image
*texImage
)
792 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
793 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
799 st_TexImage2D(GLcontext
* ctx
,
800 GLenum target
, GLint level
,
801 GLint internalFormat
,
802 GLint width
, GLint height
, GLint border
,
803 GLenum format
, GLenum type
, const void *pixels
,
804 const struct gl_pixelstore_attrib
*unpack
,
805 struct gl_texture_object
*texObj
,
806 struct gl_texture_image
*texImage
)
808 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
809 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
814 st_TexImage1D(GLcontext
* ctx
,
815 GLenum target
, GLint level
,
816 GLint internalFormat
,
817 GLint width
, GLint border
,
818 GLenum format
, GLenum type
, const void *pixels
,
819 const struct gl_pixelstore_attrib
*unpack
,
820 struct gl_texture_object
*texObj
,
821 struct gl_texture_image
*texImage
)
823 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
824 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
829 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
830 GLint internalFormat
,
831 GLint width
, GLint height
, GLint border
,
832 GLsizei imageSize
, const GLvoid
*data
,
833 struct gl_texture_object
*texObj
,
834 struct gl_texture_image
*texImage
)
836 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
837 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
843 * glGetTexImage() helper: decompress a compressed texture by rendering
844 * a textured quad. Store the results in the user's buffer.
847 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
848 GLenum format
, GLenum type
, GLvoid
*pixels
,
849 struct gl_texture_object
*texObj
,
850 struct gl_texture_image
*texImage
)
852 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
853 struct st_texture_image
*stImage
= st_texture_image(texImage
);
854 const GLuint width
= texImage
->Width
;
855 const GLuint height
= texImage
->Height
;
856 struct pipe_surface
*dst_surface
;
857 struct pipe_texture
*dst_texture
;
858 struct pipe_transfer
*tex_xfer
;
860 /* create temp / dest surface */
861 if (!util_create_rgba_surface(screen
, width
, height
,
862 &dst_texture
, &dst_surface
)) {
863 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
864 "in decompress_with_blit()");
868 /* blit/render/decompress */
869 util_blit_pixels_tex(ctx
->st
->blit
,
870 stImage
->pt
, /* pipe_texture (src) */
871 0, 0, /* src x0, y0 */
872 width
, height
, /* src x1, y1 */
873 dst_surface
, /* pipe_surface (dst) */
874 0, 0, /* dst x0, y0 */
875 width
, height
, /* dst x1, y1 */
877 PIPE_TEX_MIPFILTER_NEAREST
);
879 /* map the dst_surface so we can read from it */
880 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
881 dst_texture
, 0, 0, 0,
883 0, 0, width
, height
);
885 pixels
= _mesa_map_readpix_pbo(ctx
, &ctx
->Pack
, pixels
);
887 /* copy/pack data into user buffer */
888 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
890 const uint bytesPerRow
= width
* pf_get_size(stImage
->pt
->format
);
891 ubyte
*map
= screen
->transfer_map(screen
, tex_xfer
);
893 for (row
= 0; row
< height
; row
++) {
894 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
895 height
, format
, type
, row
, 0);
896 memcpy(dest
, map
, bytesPerRow
);
897 map
+= tex_xfer
->stride
;
899 screen
->transfer_unmap(screen
, tex_xfer
);
902 /* format translation via floats */
904 for (row
= 0; row
< height
; row
++) {
905 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
906 GLfloat rgba
[4 * MAX_WIDTH
];
907 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
908 height
, format
, type
, row
, 0);
910 /* get float[4] rgba row from surface */
911 pipe_get_tile_rgba(tex_xfer
, 0, row
, width
, 1, rgba
);
913 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
914 type
, dest
, &ctx
->Pack
, transferOps
);
918 _mesa_unmap_readpix_pbo(ctx
, &ctx
->Pack
);
920 /* destroy the temp / dest surface */
921 util_destroy_rgba_surface(dst_texture
, dst_surface
);
927 * Need to map texture image into memory before copying image data,
931 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
932 GLenum format
, GLenum type
, GLvoid
* pixels
,
933 struct gl_texture_object
*texObj
,
934 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
936 struct st_texture_image
*stImage
= st_texture_image(texImage
);
937 const GLuint dstImageStride
=
938 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
944 pf_is_compressed(stImage
->pt
->format
) &&
946 /* Need to decompress the texture.
947 * We'll do this by rendering a textured quad.
948 * Note that we only expect RGBA formats (no Z/depth formats).
950 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
957 /* Image is stored in hardware format in a buffer managed by the
958 * kernel. Need to explicitly map and unmap it.
960 unsigned face
= _mesa_tex_target_to_face(target
);
962 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
965 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
966 PIPE_TRANSFER_READ
, 0, 0,
968 stImage
->base
.Height
);
969 texImage
->RowStride
= stImage
->transfer
->stride
/ stImage
->pt
->block
.size
;
972 /* Otherwise, the image should actually be stored in
973 * texImage->Data. This is pretty confusing for
974 * everybody, I'd much prefer to separate the two functions of
975 * texImage->Data - storage for texture images in main memory
976 * and access (ie mappings) of images. In other words, we'd
977 * create a new texImage->Map field and leave Data simply for
980 assert(texImage
->Data
);
983 depth
= texImage
->Depth
;
986 dest
= (GLubyte
*) pixels
;
988 for (i
= 0; i
< depth
; i
++) {
989 if (compressed_dst
) {
990 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
994 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
998 if (stImage
->pt
&& i
+ 1 < depth
) {
999 /* unmap this slice */
1000 st_texture_image_unmap(ctx
->st
, stImage
);
1001 /* map next slice of 3D texture */
1002 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
1003 PIPE_TRANSFER_READ
, 0, 0,
1004 stImage
->base
.Width
,
1005 stImage
->base
.Height
);
1006 dest
+= dstImageStride
;
1010 texImage
->Depth
= depth
;
1014 st_texture_image_unmap(ctx
->st
, stImage
);
1015 texImage
->Data
= NULL
;
1021 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
1022 GLenum format
, GLenum type
, GLvoid
* pixels
,
1023 struct gl_texture_object
*texObj
,
1024 struct gl_texture_image
*texImage
)
1026 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
1032 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
1034 struct gl_texture_object
*texObj
,
1035 struct gl_texture_image
*texImage
)
1037 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1044 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1045 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1046 GLint width
, GLint height
, GLint depth
,
1047 GLenum format
, GLenum type
, const void *pixels
,
1048 const struct gl_pixelstore_attrib
*packing
,
1049 struct gl_texture_object
*texObj
,
1050 struct gl_texture_image
*texImage
)
1052 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1053 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1054 GLuint dstRowStride
;
1055 const GLuint srcImageStride
=
1056 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1059 /* init to silence warning only: */
1060 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1062 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1063 _mesa_lookup_enum_by_nr(target
),
1064 level
, xoffset
, yoffset
, width
, height
);
1067 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1068 type
, pixels
, packing
, "glTexSubImage2D");
1072 /* See if we can do texture compression with a blit/render.
1074 if (!ctx
->Mesa_DXTn
&&
1075 is_compressed_mesa_format(texImage
->TexFormat
) &&
1076 screen
->is_format_supported(screen
,
1077 stImage
->pt
->format
,
1078 stImage
->pt
->target
,
1079 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1080 if (compress_with_blit(ctx
, target
, level
,
1081 xoffset
, yoffset
, zoffset
,
1082 width
, height
, depth
,
1083 format
, type
, pixels
, packing
, texImage
)) {
1088 /* Map buffer if necessary. Need to lock to prevent other contexts
1089 * from uploading the buffer under us.
1092 unsigned face
= _mesa_tex_target_to_face(target
);
1094 if (format
== GL_DEPTH_COMPONENT
&&
1095 pf_is_depth_and_stencil(stImage
->pt
->format
))
1096 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1098 transfer_usage
= PIPE_TRANSFER_WRITE
;
1100 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1102 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1108 if (!texImage
->Data
) {
1109 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1113 src
= (const GLubyte
*) pixels
;
1114 dstRowStride
= stImage
->transfer
->stride
;
1116 for (i
= 0; i
< depth
; i
++) {
1117 if (!texImage
->TexFormat
->StoreImage(ctx
, dims
, texImage
->_BaseFormat
,
1118 texImage
->TexFormat
,
1122 texImage
->ImageOffsets
,
1124 format
, type
, src
, packing
)) {
1125 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1128 if (stImage
->pt
&& i
+ 1 < depth
) {
1129 /* unmap this slice */
1130 st_texture_image_unmap(ctx
->st
, stImage
);
1131 /* map next slice of 3D texture */
1132 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1137 src
+= srcImageStride
;
1142 _mesa_unmap_teximage_pbo(ctx
, packing
);
1145 st_texture_image_unmap(ctx
->st
, stImage
);
1146 texImage
->Data
= NULL
;
1149 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
1150 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1157 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1158 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1159 GLsizei width
, GLsizei height
, GLsizei depth
,
1160 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1161 const struct gl_pixelstore_attrib
*packing
,
1162 struct gl_texture_object
*texObj
,
1163 struct gl_texture_image
*texImage
)
1165 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1166 width
, height
, depth
, format
, type
,
1167 pixels
, packing
, texObj
, texImage
);
1172 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1173 GLint xoffset
, GLint yoffset
,
1174 GLsizei width
, GLsizei height
,
1175 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1176 const struct gl_pixelstore_attrib
*packing
,
1177 struct gl_texture_object
*texObj
,
1178 struct gl_texture_image
*texImage
)
1180 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1181 width
, height
, 1, format
, type
,
1182 pixels
, packing
, texObj
, texImage
);
1187 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1188 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1189 const GLvoid
* pixels
,
1190 const struct gl_pixelstore_attrib
*packing
,
1191 struct gl_texture_object
*texObj
,
1192 struct gl_texture_image
*texImage
)
1194 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1195 format
, type
, pixels
, packing
, texObj
, texImage
);
1200 st_CompressedTexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1201 GLint xoffset
, GLsizei width
,
1203 GLsizei imageSize
, const GLvoid
*data
,
1204 struct gl_texture_object
*texObj
,
1205 struct gl_texture_image
*texImage
)
1212 st_CompressedTexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1213 GLint xoffset
, GLint yoffset
,
1214 GLsizei width
, GLint height
,
1216 GLsizei imageSize
, const GLvoid
*data
,
1217 struct gl_texture_object
*texObj
,
1218 struct gl_texture_image
*texImage
)
1220 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1221 struct pipe_format_block block
;
1227 unsigned face
= _mesa_tex_target_to_face(target
);
1229 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1230 PIPE_TRANSFER_WRITE
);
1231 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
1232 PIPE_TRANSFER_WRITE
,
1236 block
= stImage
->pt
->block
;
1237 srcBlockStride
= pf_get_stride(&block
, width
);
1238 dstBlockStride
= stImage
->transfer
->stride
;
1240 assert(stImage
->pt
);
1241 /* TODO find good values for block and strides */
1242 /* TODO also adjust texImage->data for yoffset/xoffset */
1246 if (!texImage
->Data
) {
1247 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1251 assert(xoffset
% block
.width
== 0);
1252 assert(yoffset
% block
.height
== 0);
1253 assert(width
% block
.width
== 0);
1254 assert(height
% block
.height
== 0);
1256 for (y
= 0; y
< height
; y
+= block
.height
) {
1257 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1258 const char *src
= (const char*)data
+ srcBlockStride
* pf_get_nblocksy(&block
, y
);
1259 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* pf_get_nblocksy(&block
, y
);
1260 memcpy(dst
, src
, pf_get_stride(&block
, width
));
1264 st_texture_image_unmap(ctx
->st
, stImage
);
1265 texImage
->Data
= NULL
;
1271 st_CompressedTexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1272 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1273 GLsizei width
, GLint height
, GLint depth
,
1275 GLsizei imageSize
, const GLvoid
*data
,
1276 struct gl_texture_object
*texObj
,
1277 struct gl_texture_image
*texImage
)
1285 * Do a CopyTexSubImage operation using a read transfer from the source,
1286 * a write transfer to the destination and get_tile()/put_tile() to access
1287 * the pixels/texels.
1289 * Note: srcY=0=TOP of renderbuffer
1292 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1293 struct st_renderbuffer
*strb
,
1294 struct st_texture_image
*stImage
,
1296 GLint destX
, GLint destY
, GLint destZ
,
1297 GLint srcX
, GLint srcY
,
1298 GLsizei width
, GLsizei height
)
1300 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1301 struct pipe_screen
*screen
= pipe
->screen
;
1302 struct pipe_transfer
*src_trans
;
1304 enum pipe_transfer_usage transfer_usage
;
1306 assert(width
<= MAX_WIDTH
);
1308 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1309 srcY
= strb
->Base
.Height
- srcY
- height
;
1312 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1319 if (baseFormat
== GL_DEPTH_COMPONENT
&&
1320 pf_is_depth_and_stencil(stImage
->pt
->format
))
1321 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1323 transfer_usage
= PIPE_TRANSFER_WRITE
;
1325 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1328 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, transfer_usage
,
1329 destX
, destY
, width
, height
);
1331 if (baseFormat
== GL_DEPTH_COMPONENT
||
1332 baseFormat
== GL_DEPTH24_STENCIL8
) {
1333 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1334 ctx
->Pixel
.DepthBias
!= 0.0F
);
1337 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1338 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1347 /* To avoid a large temp memory allocation, do copy row by row */
1348 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1349 uint data
[MAX_WIDTH
];
1350 pipe_get_tile_z(src_trans
, 0, srcY
, width
, 1, data
);
1352 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1354 pipe_put_tile_z(stImage
->transfer
, 0, row
, width
, 1, data
);
1360 (GLfloat
*) _mesa_malloc(width
* height
* 4 * sizeof(GLfloat
));
1362 if (tempSrc
&& texDest
) {
1363 const GLint dims
= 2;
1364 const GLint dstRowStride
= stImage
->transfer
->stride
;
1365 struct gl_texture_image
*texImage
= &stImage
->base
;
1366 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1368 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1369 unpack
.Invert
= GL_TRUE
;
1372 /* get float/RGBA image from framebuffer */
1373 /* XXX this usually involves a lot of int/float conversion.
1374 * try to avoid that someday.
1376 pipe_get_tile_rgba(src_trans
, 0, 0, width
, height
, tempSrc
);
1378 /* Store into texture memory.
1379 * Note that this does some special things such as pixel transfer
1380 * ops and format conversion. In particular, if the dest tex format
1381 * is actually RGBA but the user created the texture as GL_RGB we
1382 * need to fill-in/override the alpha channel with 1.0.
1384 texImage
->TexFormat
->StoreImage(ctx
, dims
,
1385 texImage
->_BaseFormat
,
1386 texImage
->TexFormat
,
1390 texImage
->ImageOffsets
,
1392 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1396 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1400 _mesa_free(tempSrc
);
1403 st_texture_image_unmap(ctx
->st
, stImage
);
1404 screen
->tex_transfer_destroy(src_trans
);
1409 compatible_src_dst_formats(const struct gl_renderbuffer
*src
,
1410 const struct gl_texture_image
*dst
)
1412 const GLenum srcFormat
= src
->_BaseFormat
;
1413 const GLenum dstLogicalFormat
= dst
->_BaseFormat
;
1415 if (srcFormat
== dstLogicalFormat
) {
1416 /* This is the same as matching_base_formats, which should
1417 * always pass, as it did previously.
1419 return TGSI_WRITEMASK_XYZW
;
1421 else if (srcFormat
== GL_RGBA
&&
1422 dstLogicalFormat
== GL_RGB
) {
1423 /* Add a single special case to cope with RGBA->RGB transfers,
1424 * setting A to 1.0 to cope with situations where the RGB
1425 * destination is actually stored as RGBA.
1427 return TGSI_WRITEMASK_XYZ
; /* A ==> 1.0 */
1439 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1440 * Note that the region to copy has already been clipped so we know we
1441 * won't read from outside the source renderbuffer's bounds.
1443 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1446 st_copy_texsubimage(GLcontext
*ctx
,
1447 GLenum target
, GLint level
,
1448 GLint destX
, GLint destY
, GLint destZ
,
1449 GLint srcX
, GLint srcY
,
1450 GLsizei width
, GLsizei height
)
1452 struct gl_texture_unit
*texUnit
=
1453 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1454 struct gl_texture_object
*texObj
=
1455 _mesa_select_tex_object(ctx
, texUnit
, target
);
1456 struct gl_texture_image
*texImage
=
1457 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1458 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1459 const GLenum texBaseFormat
= texImage
->InternalFormat
;
1460 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1461 struct st_renderbuffer
*strb
;
1462 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1463 struct pipe_screen
*screen
= pipe
->screen
;
1464 enum pipe_format dest_format
, src_format
;
1465 GLboolean use_fallback
= GL_TRUE
;
1466 GLboolean matching_base_formats
;
1467 GLuint format_writemask
;
1468 struct pipe_surface
*dest_surface
= NULL
;
1469 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1471 /* any rendering in progress must flushed before we grab the fb image */
1472 st_flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
1474 /* make sure finalize_textures has been called?
1476 if (0) st_validate_state(ctx
->st
);
1478 /* determine if copying depth or color data */
1479 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1480 texBaseFormat
== GL_DEPTH24_STENCIL8
) {
1481 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1483 else if (texBaseFormat
== GL_DEPTH_STENCIL_EXT
) {
1484 strb
= st_renderbuffer(fb
->_StencilBuffer
);
1487 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1488 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1491 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1492 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1520 if (width
< 0 || height
< 0)
1525 assert(strb
->surface
);
1526 assert(stImage
->pt
);
1528 src_format
= strb
->surface
->format
;
1529 dest_format
= stImage
->pt
->format
;
1532 * Determine if the src framebuffer and dest texture have the same
1533 * base format. We need this to detect a case such as the framebuffer
1534 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1535 * texture format stores RGBA we need to set A=1 (overriding the
1536 * framebuffer's alpha values). We can't do that with the blit or
1537 * textured-quad paths.
1539 matching_base_formats
= (strb
->Base
._BaseFormat
== texImage
->_BaseFormat
);
1540 format_writemask
= compatible_src_dst_formats(&strb
->Base
, texImage
);
1542 if (ctx
->_ImageTransferState
== 0x0) {
1544 if (matching_base_formats
&&
1545 src_format
== dest_format
&&
1548 /* use surface_copy() / blit */
1550 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1551 stImage
->face
, stImage
->level
,
1553 PIPE_BUFFER_USAGE_GPU_WRITE
);
1555 /* for surface_copy(), y=0=top, always */
1556 pipe
->surface_copy(pipe
,
1565 use_fallback
= GL_FALSE
;
1567 else if (format_writemask
&&
1568 screen
->is_format_supported(screen
, src_format
,
1570 PIPE_TEXTURE_USAGE_SAMPLER
,
1572 screen
->is_format_supported(screen
, dest_format
,
1574 PIPE_TEXTURE_USAGE_RENDER_TARGET
,
1576 /* draw textured quad to do the copy */
1579 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1580 stImage
->face
, stImage
->level
,
1582 PIPE_BUFFER_USAGE_GPU_WRITE
);
1585 srcY1
= strb
->Base
.Height
- srcY
- height
;
1586 srcY0
= srcY1
+ height
;
1590 srcY1
= srcY0
+ height
;
1592 util_blit_pixels_writemask(ctx
->st
->blit
,
1595 srcX
+ width
, srcY1
,
1598 destX
+ width
, destY
+ height
,
1599 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1601 use_fallback
= GL_FALSE
;
1605 pipe_surface_reference(&dest_surface
, NULL
);
1609 /* software fallback */
1610 fallback_copy_texsubimage(ctx
, target
, level
,
1611 strb
, stImage
, texBaseFormat
,
1612 destX
, destY
, destZ
,
1613 srcX
, srcY
, width
, height
);
1616 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
1617 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1624 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1625 GLenum internalFormat
,
1626 GLint x
, GLint y
, GLsizei width
, GLint border
)
1628 struct gl_texture_unit
*texUnit
=
1629 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1630 struct gl_texture_object
*texObj
=
1631 _mesa_select_tex_object(ctx
, texUnit
, target
);
1632 struct gl_texture_image
*texImage
=
1633 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1635 /* Setup or redefine the texture object, texture and texture
1636 * image. Don't populate yet.
1638 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1640 GL_RGBA
, CHAN_TYPE
, NULL
,
1641 &ctx
->DefaultPacking
, texObj
, texImage
);
1643 st_copy_texsubimage(ctx
, target
, level
,
1644 0, 0, 0, /* destX,Y,Z */
1645 x
, y
, width
, 1); /* src X, Y, size */
1650 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1651 GLenum internalFormat
,
1652 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1655 struct gl_texture_unit
*texUnit
=
1656 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1657 struct gl_texture_object
*texObj
=
1658 _mesa_select_tex_object(ctx
, texUnit
, target
);
1659 struct gl_texture_image
*texImage
=
1660 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1662 /* Setup or redefine the texture object, texture and texture
1663 * image. Don't populate yet.
1665 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1666 width
, height
, border
,
1667 GL_RGBA
, CHAN_TYPE
, NULL
,
1668 &ctx
->DefaultPacking
, texObj
, texImage
);
1670 st_copy_texsubimage(ctx
, target
, level
,
1671 0, 0, 0, /* destX,Y,Z */
1672 x
, y
, width
, height
); /* src X, Y, size */
1677 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1678 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1680 const GLint yoffset
= 0, zoffset
= 0;
1681 const GLsizei height
= 1;
1682 st_copy_texsubimage(ctx
, target
, level
,
1683 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1684 x
, y
, width
, height
); /* src X, Y, size */
1689 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1690 GLint xoffset
, GLint yoffset
,
1691 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1693 const GLint zoffset
= 0;
1694 st_copy_texsubimage(ctx
, target
, level
,
1695 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1696 x
, y
, width
, height
); /* src X, Y, size */
1701 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1702 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1703 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1705 st_copy_texsubimage(ctx
, target
, level
,
1706 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1707 x
, y
, width
, height
); /* src X, Y, size */
1712 copy_image_data_to_texture(struct st_context
*st
,
1713 struct st_texture_object
*stObj
,
1715 struct st_texture_image
*stImage
)
1718 /* Copy potentially with the blitter:
1720 st_texture_image_copy(st
->pipe
,
1721 stObj
->pt
, dstLevel
, /* dest texture, level */
1722 stImage
->pt
, /* src texture */
1726 pipe_texture_reference(&stImage
->pt
, NULL
);
1728 else if (stImage
->base
.Data
) {
1729 assert(stImage
->base
.Data
!= NULL
);
1731 /* More straightforward upload.
1734 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1735 PIPE_TRANSFER_WRITE
);
1738 st_texture_image_data(st
,
1743 stImage
->base
.RowStride
*
1744 stObj
->pt
->block
.size
,
1745 stImage
->base
.RowStride
*
1746 stImage
->base
.Height
*
1747 stObj
->pt
->block
.size
);
1748 _mesa_align_free(stImage
->base
.Data
);
1749 stImage
->base
.Data
= NULL
;
1752 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
1757 * Called during state validation. When this function is finished,
1758 * the texture object should be ready for rendering.
1759 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1762 st_finalize_texture(GLcontext
*ctx
,
1763 struct pipe_context
*pipe
,
1764 struct gl_texture_object
*tObj
,
1765 GLboolean
*needFlush
)
1767 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1768 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1770 struct st_texture_image
*firstImage
;
1772 *needFlush
= GL_FALSE
;
1774 if (stObj
->base
._Complete
) {
1775 /* The texture is complete and we know exactly how many mipmap levels
1776 * are present/needed. This is conditional because we may be called
1777 * from the st_generate_mipmap() function when the texture object is
1778 * incomplete. In that case, we'll have set stObj->lastLevel before
1781 stObj
->lastLevel
= stObj
->base
._MaxLevel
- stObj
->base
.BaseLevel
;
1784 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1786 /* If both firstImage and stObj point to a texture which can contain
1787 * all active images, favour firstImage. Note that because of the
1788 * completeness requirement, we know that the image dimensions
1791 if (firstImage
->pt
&&
1792 firstImage
->pt
!= stObj
->pt
&&
1793 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1794 pipe_texture_reference(&stObj
->pt
, firstImage
->pt
);
1797 /* FIXME: determine format block instead of cpp */
1798 if (firstImage
->base
.IsCompressed
) {
1799 cpp
= compressed_num_bytes(firstImage
->base
.TexFormat
->MesaFormat
);
1802 cpp
= firstImage
->base
.TexFormat
->TexelBytes
;
1805 /* If we already have a gallium texture, check that it matches the texture
1806 * object's format, target, size, num_levels, etc.
1809 const enum pipe_format fmt
=
1810 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
->MesaFormat
);
1811 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1812 stObj
->pt
->format
!= fmt
||
1813 stObj
->pt
->last_level
< stObj
->lastLevel
||
1814 stObj
->pt
->width
[0] != firstImage
->base
.Width2
||
1815 stObj
->pt
->height
[0] != firstImage
->base
.Height2
||
1816 stObj
->pt
->depth
[0] != firstImage
->base
.Depth2
||
1817 /* Nominal bytes per pixel: */
1818 stObj
->pt
->block
.size
/ stObj
->pt
->block
.width
!= cpp
)
1820 pipe_texture_reference(&stObj
->pt
, NULL
);
1821 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1825 /* May need to create a new gallium texture:
1828 const enum pipe_format fmt
=
1829 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
->MesaFormat
);
1830 GLuint usage
= default_usage(fmt
);
1832 stObj
->pt
= st_texture_create(ctx
->st
,
1833 gl_target_to_pipe(stObj
->base
.Target
),
1836 firstImage
->base
.Width2
,
1837 firstImage
->base
.Height2
,
1838 firstImage
->base
.Depth2
,
1842 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1847 /* Pull in any images not in the object's texture:
1849 for (face
= 0; face
< nr_faces
; face
++) {
1851 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1852 struct st_texture_image
*stImage
=
1853 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1855 /* Need to import images in main memory or held in other textures.
1857 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1858 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1859 *needFlush
= GL_TRUE
;
1869 * Returns pointer to a default/dummy texture.
1870 * This is typically used when the current shader has tex/sample instructions
1871 * but the user has not provided a (any) texture(s).
1873 struct gl_texture_object
*
1874 st_get_default_texture(struct st_context
*st
)
1876 if (!st
->default_texture
) {
1877 static const GLenum target
= GL_TEXTURE_2D
;
1878 GLubyte pixels
[16][16][4];
1879 struct gl_texture_object
*texObj
;
1880 struct gl_texture_image
*texImg
;
1883 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1884 * when attempting to sample incomplete textures.
1886 for (i
= 0; i
< 16; i
++) {
1887 for (j
= 0; j
< 16; j
++) {
1888 pixels
[i
][j
][0] = 0;
1889 pixels
[i
][j
][1] = 0;
1890 pixels
[i
][j
][2] = 0;
1891 pixels
[i
][j
][3] = 255;
1895 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1897 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1899 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1900 16, 16, 1, 0, /* w, h, d, border */
1903 st_TexImage(st
->ctx
, 2, target
,
1904 0, GL_RGBA
, /* level, intformat */
1905 16, 16, 1, 0, /* w, h, d, border */
1906 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1907 &st
->ctx
->DefaultPacking
,
1911 texObj
->MinFilter
= GL_NEAREST
;
1912 texObj
->MagFilter
= GL_NEAREST
;
1913 texObj
->_Complete
= GL_TRUE
;
1915 st
->default_texture
= texObj
;
1917 return st
->default_texture
;
1922 st_init_texture_functions(struct dd_function_table
*functions
)
1924 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1925 functions
->TexImage1D
= st_TexImage1D
;
1926 functions
->TexImage2D
= st_TexImage2D
;
1927 functions
->TexImage3D
= st_TexImage3D
;
1928 functions
->TexSubImage1D
= st_TexSubImage1D
;
1929 functions
->TexSubImage2D
= st_TexSubImage2D
;
1930 functions
->TexSubImage3D
= st_TexSubImage3D
;
1931 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1932 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1933 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1934 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1935 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1936 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1937 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1938 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1939 functions
->GenerateMipmap
= st_generate_mipmap
;
1941 functions
->GetTexImage
= st_GetTexImage
;
1943 /* compressed texture functions */
1944 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1945 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1946 functions
->CompressedTextureSize
= _mesa_compressed_texture_size
;
1948 functions
->NewTextureObject
= st_NewTextureObject
;
1949 functions
->NewTextureImage
= st_NewTextureImage
;
1950 functions
->DeleteTexture
= st_DeleteTextureObject
;
1951 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1952 functions
->UpdateTexturePalette
= 0;
1954 functions
->TextureMemCpy
= do_memcpy
;
1956 /* XXX Temporary until we can query pipe's texture sizes */
1957 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;