1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "main/mfeatures.h"
29 #include "main/bufferobj.h"
31 #include "main/convolve.h"
33 #include "main/enums.h"
34 #include "main/formats.h"
35 #include "main/image.h"
36 #include "main/imports.h"
37 #include "main/macros.h"
38 #include "main/mipmap.h"
39 #include "main/pixel.h"
40 #include "main/texcompress.h"
41 #include "main/texfetch.h"
42 #include "main/texformat.h"
43 #include "main/texgetimage.h"
44 #include "main/teximage.h"
45 #include "main/texobj.h"
46 #include "main/texstore.h"
48 #include "state_tracker/st_debug.h"
49 #include "state_tracker/st_context.h"
50 #include "state_tracker/st_cb_fbo.h"
51 #include "state_tracker/st_cb_texture.h"
52 #include "state_tracker/st_format.h"
53 #include "state_tracker/st_public.h"
54 #include "state_tracker/st_texture.h"
55 #include "state_tracker/st_gen_mipmap.h"
56 #include "state_tracker/st_inlines.h"
57 #include "state_tracker/st_atom.h"
59 #include "pipe/p_context.h"
60 #include "pipe/p_defines.h"
61 #include "pipe/p_inlines.h"
62 #include "pipe/p_shader_tokens.h"
63 #include "util/u_tile.h"
64 #include "util/u_blit.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 (pf_is_depth_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 pf_get_block(templ
.format
, &templ
.block
);
409 templ
.width
[0] = width
;
410 templ
.height
[0] = height
;
412 templ
.last_level
= 0;
413 templ
.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
414 src_tex
= screen
->texture_create(screen
, &templ
);
419 /* Put user's tex data into the temporary texture
421 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
422 0, 0, 0, /* face, level are zero */
424 0, 0, width
, height
); /* x, y, w, h */
425 map
= screen
->transfer_map(screen
, tex_xfer
);
427 _mesa_texstore(ctx
, 2, GL_RGBA
, mesa_format
,
429 0, 0, 0, /* dest x/y/z offset */
430 tex_xfer
->stride
, /* dest row stride (bytes) */
431 dstImageOffsets
, /* image offsets (for 3D only) */
432 width
, height
, 1, /* size */
433 format
, type
, /* source format/type */
434 pixels
, /* source data */
435 unpack
); /* source data packing */
437 screen
->transfer_unmap(screen
, tex_xfer
);
438 screen
->tex_transfer_destroy(tex_xfer
);
440 /* copy / compress image */
441 util_blit_pixels_tex(ctx
->st
->blit
,
442 src_tex
, /* pipe_texture (src) */
443 0, 0, /* src x0, y0 */
444 width
, height
, /* src x1, y1 */
445 dst_surface
, /* pipe_surface (dst) */
446 xoffset
, yoffset
, /* dst x0, y0 */
447 xoffset
+ width
, /* dst x1 */
448 yoffset
+ height
, /* dst y1 */
450 PIPE_TEX_MIPFILTER_NEAREST
);
452 pipe_surface_reference(&dst_surface
, NULL
);
453 pipe_texture_reference(&src_tex
, NULL
);
460 * Do glTexImage1/2/3D().
463 st_TexImage(GLcontext
* ctx
,
465 GLenum target
, GLint level
,
466 GLint internalFormat
,
467 GLint width
, GLint height
, GLint depth
,
469 GLenum format
, GLenum type
, const void *pixels
,
470 const struct gl_pixelstore_attrib
*unpack
,
471 struct gl_texture_object
*texObj
,
472 struct gl_texture_image
*texImage
,
473 GLsizei imageSize
, GLboolean compressed_src
)
475 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
476 struct st_texture_object
*stObj
= st_texture_object(texObj
);
477 struct st_texture_image
*stImage
= st_texture_image(texImage
);
478 GLint postConvWidth
, postConvHeight
;
479 GLint texelBytes
, sizeInBytes
;
480 GLuint dstRowStride
= 0;
481 struct gl_pixelstore_attrib unpackNB
;
482 enum pipe_transfer_usage transfer_usage
= 0;
484 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
485 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
487 /* switch to "normal" */
488 if (stObj
->surface_based
) {
489 _mesa_clear_texture_object(ctx
, texObj
);
490 stObj
->surface_based
= GL_FALSE
;
493 /* gallium does not support texture borders, strip it off */
495 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
497 texImage
->Width
= width
;
498 texImage
->Height
= height
;
499 texImage
->Depth
= depth
;
500 texImage
->Border
= 0;
504 postConvWidth
= width
;
505 postConvHeight
= height
;
507 stImage
->face
= _mesa_tex_target_to_face(target
);
508 stImage
->level
= level
;
511 if (ctx
->_ImageTransferState
& IMAGE_CONVOLUTION_BIT
) {
512 _mesa_adjust_image_for_convolution(ctx
, dims
, &postConvWidth
,
517 _mesa_set_fetch_functions(texImage
, dims
);
519 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
520 /* must be a compressed format */
524 texelBytes
= _mesa_get_format_bytes(texImage
->TexFormat
);
526 /* Minimum pitch of 32 bytes */
527 if (postConvWidth
* texelBytes
< 32) {
528 postConvWidth
= 32 / texelBytes
;
529 texImage
->RowStride
= postConvWidth
;
532 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
533 /*assert(texImage->RowStride == postConvWidth);*/
536 /* Release the reference to a potentially orphaned buffer.
537 * Release any old malloced memory.
540 pipe_texture_reference(&stImage
->pt
, NULL
);
541 assert(!texImage
->Data
);
543 else if (texImage
->Data
) {
544 _mesa_align_free(texImage
->Data
);
547 if (width
== 0 || height
== 0 || depth
== 0) {
548 /* stop after freeing old image */
552 /* If this is the only mipmap level in the texture, could call
553 * bmBufferData with NULL data to free the old block and avoid
554 * waiting on any outstanding fences.
557 if (stObj
->teximage_realloc
||
558 level
> (GLint
) stObj
->pt
->last_level
||
559 (stObj
->pt
->last_level
== level
&&
560 stObj
->pt
->target
!= PIPE_TEXTURE_CUBE
&&
561 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
562 stImage
->face
, stImage
->level
))) {
564 pipe_texture_reference(&stObj
->pt
, NULL
);
566 stObj
->teximage_realloc
= FALSE
;
571 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
573 /* Probably out of memory.
574 * Try flushing any pending rendering, then retry.
577 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
579 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
585 assert(!stImage
->pt
);
588 st_texture_match_image(stObj
->pt
, &stImage
->base
,
589 stImage
->face
, stImage
->level
)) {
591 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
596 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
598 /* st_CopyTexImage calls this function with pixels == NULL, with
599 * the expectation that the texture will be set up but nothing
600 * more will be done. This is where those calls return:
602 if (compressed_src
) {
603 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
605 "glCompressedTexImage");
608 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
610 pixels
, unpack
, "glTexImage");
613 /* Note: we can't check for pixels==NULL until after we've allocated
614 * memory for the texture.
617 /* See if we can do texture compression with a blit/render.
619 if (!compressed_src
&&
621 _mesa_is_format_compressed(texImage
->TexFormat
) &&
622 screen
->is_format_supported(screen
,
625 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
629 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
630 format
, type
, pixels
, unpack
, texImage
)) {
636 if (format
== GL_DEPTH_COMPONENT
&&
637 pf_is_depth_and_stencil(stImage
->pt
->format
))
638 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
640 transfer_usage
= PIPE_TRANSFER_WRITE
;
642 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
643 transfer_usage
, 0, 0,
645 stImage
->base
.Height
);
646 if(stImage
->transfer
)
647 dstRowStride
= stImage
->transfer
->stride
;
650 /* Allocate regular memory and store the image there temporarily. */
651 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
652 sizeInBytes
= _mesa_format_image_size(texImage
->TexFormat
,
656 dstRowStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
660 dstRowStride
= postConvWidth
* texelBytes
;
661 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
664 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
667 if (!texImage
->Data
) {
668 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
675 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
676 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
678 /* Copy data. Would like to know when it's ok for us to eg. use
679 * the blitter to copy. Or, use the hardware to do the format
680 * conversion and copy:
682 if (compressed_src
) {
683 memcpy(texImage
->Data
, pixels
, imageSize
);
686 const GLuint srcImageStride
=
687 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
689 const GLubyte
*src
= (const GLubyte
*) pixels
;
691 for (i
= 0; i
< depth
; i
++) {
692 if (!_mesa_texstore(ctx
, dims
,
693 texImage
->_BaseFormat
,
696 0, 0, 0, /* dstX/Y/Zoffset */
698 texImage
->ImageOffsets
,
700 format
, type
, src
, unpack
)) {
701 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
704 if (stImage
->pt
&& i
+ 1 < depth
) {
705 /* unmap this slice */
706 st_texture_image_unmap(ctx
->st
, stImage
);
707 /* map next slice of 3D texture */
708 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
709 transfer_usage
, 0, 0,
711 stImage
->base
.Height
);
712 src
+= srcImageStride
;
718 _mesa_unmap_teximage_pbo(ctx
, unpack
);
720 if (stImage
->pt
&& texImage
->Data
) {
721 st_texture_image_unmap(ctx
->st
, stImage
);
722 texImage
->Data
= NULL
;
728 st_TexImage3D(GLcontext
* ctx
,
729 GLenum target
, GLint level
,
730 GLint internalFormat
,
731 GLint width
, GLint height
, GLint depth
,
733 GLenum format
, GLenum type
, const void *pixels
,
734 const struct gl_pixelstore_attrib
*unpack
,
735 struct gl_texture_object
*texObj
,
736 struct gl_texture_image
*texImage
)
738 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
739 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
745 st_TexImage2D(GLcontext
* ctx
,
746 GLenum target
, GLint level
,
747 GLint internalFormat
,
748 GLint width
, GLint height
, GLint border
,
749 GLenum format
, GLenum type
, const void *pixels
,
750 const struct gl_pixelstore_attrib
*unpack
,
751 struct gl_texture_object
*texObj
,
752 struct gl_texture_image
*texImage
)
754 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
755 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
760 st_TexImage1D(GLcontext
* ctx
,
761 GLenum target
, GLint level
,
762 GLint internalFormat
,
763 GLint width
, GLint border
,
764 GLenum format
, GLenum type
, const void *pixels
,
765 const struct gl_pixelstore_attrib
*unpack
,
766 struct gl_texture_object
*texObj
,
767 struct gl_texture_image
*texImage
)
769 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
770 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
775 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
776 GLint internalFormat
,
777 GLint width
, GLint height
, GLint border
,
778 GLsizei imageSize
, const GLvoid
*data
,
779 struct gl_texture_object
*texObj
,
780 struct gl_texture_image
*texImage
)
782 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
783 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
789 * glGetTexImage() helper: decompress a compressed texture by rendering
790 * a textured quad. Store the results in the user's buffer.
793 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
794 GLenum format
, GLenum type
, GLvoid
*pixels
,
795 struct gl_texture_object
*texObj
,
796 struct gl_texture_image
*texImage
)
798 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
799 struct st_texture_image
*stImage
= st_texture_image(texImage
);
800 const GLuint width
= texImage
->Width
;
801 const GLuint height
= texImage
->Height
;
802 struct pipe_surface
*dst_surface
;
803 struct pipe_texture
*dst_texture
;
804 struct pipe_transfer
*tex_xfer
;
806 /* create temp / dest surface */
807 if (!util_create_rgba_surface(screen
, width
, height
,
808 &dst_texture
, &dst_surface
)) {
809 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
810 "in decompress_with_blit()");
814 /* blit/render/decompress */
815 util_blit_pixels_tex(ctx
->st
->blit
,
816 stImage
->pt
, /* pipe_texture (src) */
817 0, 0, /* src x0, y0 */
818 width
, height
, /* src x1, y1 */
819 dst_surface
, /* pipe_surface (dst) */
820 0, 0, /* dst x0, y0 */
821 width
, height
, /* dst x1, y1 */
823 PIPE_TEX_MIPFILTER_NEAREST
);
825 /* map the dst_surface so we can read from it */
826 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
827 dst_texture
, 0, 0, 0,
829 0, 0, width
, height
);
831 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
833 /* copy/pack data into user buffer */
834 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
836 const uint bytesPerRow
= width
* pf_get_size(stImage
->pt
->format
);
837 ubyte
*map
= screen
->transfer_map(screen
, tex_xfer
);
839 for (row
= 0; row
< height
; row
++) {
840 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
841 height
, format
, type
, row
, 0);
842 memcpy(dest
, map
, bytesPerRow
);
843 map
+= tex_xfer
->stride
;
845 screen
->transfer_unmap(screen
, tex_xfer
);
848 /* format translation via floats */
850 for (row
= 0; row
< height
; row
++) {
851 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
852 GLfloat rgba
[4 * MAX_WIDTH
];
853 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
854 height
, format
, type
, row
, 0);
856 if (ST_DEBUG
& DEBUG_FALLBACK
)
857 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
859 /* get float[4] rgba row from surface */
860 pipe_get_tile_rgba(tex_xfer
, 0, row
, width
, 1, rgba
);
862 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
863 type
, dest
, &ctx
->Pack
, transferOps
);
867 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
869 /* destroy the temp / dest surface */
870 util_destroy_rgba_surface(dst_texture
, dst_surface
);
876 * Need to map texture image into memory before copying image data,
880 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
881 GLenum format
, GLenum type
, GLvoid
* pixels
,
882 struct gl_texture_object
*texObj
,
883 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
885 struct st_texture_image
*stImage
= st_texture_image(texImage
);
886 const GLuint dstImageStride
=
887 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
893 pf_is_compressed(stImage
->pt
->format
) &&
895 /* Need to decompress the texture.
896 * We'll do this by rendering a textured quad.
897 * Note that we only expect RGBA formats (no Z/depth formats).
899 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
906 /* Image is stored in hardware format in a buffer managed by the
907 * kernel. Need to explicitly map and unmap it.
909 unsigned face
= _mesa_tex_target_to_face(target
);
911 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
914 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
915 PIPE_TRANSFER_READ
, 0, 0,
917 stImage
->base
.Height
);
918 texImage
->RowStride
= stImage
->transfer
->stride
/ stImage
->pt
->block
.size
;
921 /* Otherwise, the image should actually be stored in
922 * texImage->Data. This is pretty confusing for
923 * everybody, I'd much prefer to separate the two functions of
924 * texImage->Data - storage for texture images in main memory
925 * and access (ie mappings) of images. In other words, we'd
926 * create a new texImage->Map field and leave Data simply for
929 assert(texImage
->Data
);
932 depth
= texImage
->Depth
;
935 dest
= (GLubyte
*) pixels
;
937 for (i
= 0; i
< depth
; i
++) {
938 if (compressed_dst
) {
939 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
943 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
947 if (stImage
->pt
&& i
+ 1 < depth
) {
948 /* unmap this slice */
949 st_texture_image_unmap(ctx
->st
, stImage
);
950 /* map next slice of 3D texture */
951 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
952 PIPE_TRANSFER_READ
, 0, 0,
954 stImage
->base
.Height
);
955 dest
+= dstImageStride
;
959 texImage
->Depth
= depth
;
963 st_texture_image_unmap(ctx
->st
, stImage
);
964 texImage
->Data
= NULL
;
970 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
971 GLenum format
, GLenum type
, GLvoid
* pixels
,
972 struct gl_texture_object
*texObj
,
973 struct gl_texture_image
*texImage
)
975 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
981 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
983 struct gl_texture_object
*texObj
,
984 struct gl_texture_image
*texImage
)
986 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
993 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
994 GLint xoffset
, GLint yoffset
, GLint zoffset
,
995 GLint width
, GLint height
, GLint depth
,
996 GLenum format
, GLenum type
, const void *pixels
,
997 const struct gl_pixelstore_attrib
*packing
,
998 struct gl_texture_object
*texObj
,
999 struct gl_texture_image
*texImage
)
1001 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1002 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1003 GLuint dstRowStride
;
1004 const GLuint srcImageStride
=
1005 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1008 /* init to silence warning only: */
1009 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1011 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1012 _mesa_lookup_enum_by_nr(target
),
1013 level
, xoffset
, yoffset
, width
, height
);
1016 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1017 type
, pixels
, packing
, "glTexSubImage2D");
1021 /* See if we can do texture compression with a blit/render.
1023 if (!ctx
->Mesa_DXTn
&&
1024 _mesa_is_format_compressed(texImage
->TexFormat
) &&
1025 screen
->is_format_supported(screen
,
1026 stImage
->pt
->format
,
1027 stImage
->pt
->target
,
1028 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1029 if (compress_with_blit(ctx
, target
, level
,
1030 xoffset
, yoffset
, zoffset
,
1031 width
, height
, depth
,
1032 format
, type
, pixels
, packing
, texImage
)) {
1037 /* Map buffer if necessary. Need to lock to prevent other contexts
1038 * from uploading the buffer under us.
1041 unsigned face
= _mesa_tex_target_to_face(target
);
1043 if (format
== GL_DEPTH_COMPONENT
&&
1044 pf_is_depth_and_stencil(stImage
->pt
->format
))
1045 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1047 transfer_usage
= PIPE_TRANSFER_WRITE
;
1049 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1051 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1057 if (!texImage
->Data
) {
1058 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1062 src
= (const GLubyte
*) pixels
;
1063 dstRowStride
= stImage
->transfer
->stride
;
1065 for (i
= 0; i
< depth
; i
++) {
1066 if (!_mesa_texstore(ctx
, dims
, texImage
->_BaseFormat
,
1067 texImage
->TexFormat
,
1071 texImage
->ImageOffsets
,
1073 format
, type
, src
, packing
)) {
1074 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1077 if (stImage
->pt
&& i
+ 1 < depth
) {
1078 /* unmap this slice */
1079 st_texture_image_unmap(ctx
->st
, stImage
);
1080 /* map next slice of 3D texture */
1081 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1086 src
+= srcImageStride
;
1091 _mesa_unmap_teximage_pbo(ctx
, packing
);
1094 st_texture_image_unmap(ctx
->st
, stImage
);
1095 texImage
->Data
= NULL
;
1102 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1103 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1104 GLsizei width
, GLsizei height
, GLsizei depth
,
1105 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1106 const struct gl_pixelstore_attrib
*packing
,
1107 struct gl_texture_object
*texObj
,
1108 struct gl_texture_image
*texImage
)
1110 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1111 width
, height
, depth
, format
, type
,
1112 pixels
, packing
, texObj
, texImage
);
1117 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1118 GLint xoffset
, GLint yoffset
,
1119 GLsizei width
, GLsizei height
,
1120 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1121 const struct gl_pixelstore_attrib
*packing
,
1122 struct gl_texture_object
*texObj
,
1123 struct gl_texture_image
*texImage
)
1125 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1126 width
, height
, 1, format
, type
,
1127 pixels
, packing
, texObj
, texImage
);
1132 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1133 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1134 const GLvoid
* pixels
,
1135 const struct gl_pixelstore_attrib
*packing
,
1136 struct gl_texture_object
*texObj
,
1137 struct gl_texture_image
*texImage
)
1139 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1140 format
, type
, pixels
, packing
, texObj
, texImage
);
1145 st_CompressedTexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1146 GLint xoffset
, GLsizei width
,
1148 GLsizei imageSize
, const GLvoid
*data
,
1149 struct gl_texture_object
*texObj
,
1150 struct gl_texture_image
*texImage
)
1157 st_CompressedTexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1158 GLint xoffset
, GLint yoffset
,
1159 GLsizei width
, GLint height
,
1161 GLsizei imageSize
, const GLvoid
*data
,
1162 struct gl_texture_object
*texObj
,
1163 struct gl_texture_image
*texImage
)
1165 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1166 struct pipe_format_block block
;
1172 unsigned face
= _mesa_tex_target_to_face(target
);
1174 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1175 PIPE_TRANSFER_WRITE
);
1176 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
1177 PIPE_TRANSFER_WRITE
,
1181 block
= stImage
->pt
->block
;
1182 srcBlockStride
= pf_get_stride(&block
, width
);
1183 dstBlockStride
= stImage
->transfer
->stride
;
1185 assert(stImage
->pt
);
1186 /* TODO find good values for block and strides */
1187 /* TODO also adjust texImage->data for yoffset/xoffset */
1191 if (!texImage
->Data
) {
1192 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1196 assert(xoffset
% block
.width
== 0);
1197 assert(yoffset
% block
.height
== 0);
1198 assert(width
% block
.width
== 0);
1199 assert(height
% block
.height
== 0);
1201 for (y
= 0; y
< height
; y
+= block
.height
) {
1202 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1203 const char *src
= (const char*)data
+ srcBlockStride
* pf_get_nblocksy(&block
, y
);
1204 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* pf_get_nblocksy(&block
, y
);
1205 memcpy(dst
, src
, pf_get_stride(&block
, width
));
1209 st_texture_image_unmap(ctx
->st
, stImage
);
1210 texImage
->Data
= NULL
;
1216 st_CompressedTexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1217 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1218 GLsizei width
, GLint height
, GLint depth
,
1220 GLsizei imageSize
, const GLvoid
*data
,
1221 struct gl_texture_object
*texObj
,
1222 struct gl_texture_image
*texImage
)
1230 * Do a CopyTexSubImage operation using a read transfer from the source,
1231 * a write transfer to the destination and get_tile()/put_tile() to access
1232 * the pixels/texels.
1234 * Note: srcY=0=TOP of renderbuffer
1237 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1238 struct st_renderbuffer
*strb
,
1239 struct st_texture_image
*stImage
,
1241 GLint destX
, GLint destY
, GLint destZ
,
1242 GLint srcX
, GLint srcY
,
1243 GLsizei width
, GLsizei height
)
1245 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1246 struct pipe_screen
*screen
= pipe
->screen
;
1247 struct pipe_transfer
*src_trans
;
1249 enum pipe_transfer_usage transfer_usage
;
1251 if (ST_DEBUG
& DEBUG_FALLBACK
)
1252 debug_printf("%s: fallback processing\n", __FUNCTION__
);
1254 assert(width
<= MAX_WIDTH
);
1256 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1257 srcY
= strb
->Base
.Height
- srcY
- height
;
1260 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1267 if ((baseFormat
== GL_DEPTH_COMPONENT
||
1268 baseFormat
== GL_DEPTH_STENCIL
) &&
1269 pf_is_depth_and_stencil(stImage
->pt
->format
))
1270 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1272 transfer_usage
= PIPE_TRANSFER_WRITE
;
1274 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1277 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, transfer_usage
,
1278 destX
, destY
, width
, height
);
1280 if (baseFormat
== GL_DEPTH_COMPONENT
||
1281 baseFormat
== GL_DEPTH_STENCIL
) {
1282 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1283 ctx
->Pixel
.DepthBias
!= 0.0F
);
1286 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1287 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1296 /* To avoid a large temp memory allocation, do copy row by row */
1297 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1298 uint data
[MAX_WIDTH
];
1299 pipe_get_tile_z(src_trans
, 0, srcY
, width
, 1, data
);
1301 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1303 pipe_put_tile_z(stImage
->transfer
, 0, row
, width
, 1, data
);
1309 (GLfloat
*) _mesa_malloc(width
* height
* 4 * sizeof(GLfloat
));
1311 if (tempSrc
&& texDest
) {
1312 const GLint dims
= 2;
1313 const GLint dstRowStride
= stImage
->transfer
->stride
;
1314 struct gl_texture_image
*texImage
= &stImage
->base
;
1315 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1317 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1318 unpack
.Invert
= GL_TRUE
;
1321 /* get float/RGBA image from framebuffer */
1322 /* XXX this usually involves a lot of int/float conversion.
1323 * try to avoid that someday.
1325 pipe_get_tile_rgba(src_trans
, 0, 0, width
, height
, tempSrc
);
1327 /* Store into texture memory.
1328 * Note that this does some special things such as pixel transfer
1329 * ops and format conversion. In particular, if the dest tex format
1330 * is actually RGBA but the user created the texture as GL_RGB we
1331 * need to fill-in/override the alpha channel with 1.0.
1333 _mesa_texstore(ctx
, dims
,
1334 texImage
->_BaseFormat
,
1335 texImage
->TexFormat
,
1339 texImage
->ImageOffsets
,
1341 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1345 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1349 _mesa_free(tempSrc
);
1352 st_texture_image_unmap(ctx
->st
, stImage
);
1353 screen
->tex_transfer_destroy(src_trans
);
1358 compatible_src_dst_formats(const struct gl_renderbuffer
*src
,
1359 const struct gl_texture_image
*dst
)
1361 const GLenum srcFormat
= _mesa_get_format_base_format(src
->Format
);
1362 const GLenum dstLogicalFormat
= _mesa_get_format_base_format(dst
->TexFormat
);
1364 if (srcFormat
== dstLogicalFormat
) {
1365 /* This is the same as matching_base_formats, which should
1366 * always pass, as it did previously.
1368 return TGSI_WRITEMASK_XYZW
;
1370 else if (srcFormat
== GL_RGBA
&&
1371 dstLogicalFormat
== GL_RGB
) {
1372 /* Add a single special case to cope with RGBA->RGB transfers,
1373 * setting A to 1.0 to cope with situations where the RGB
1374 * destination is actually stored as RGBA.
1376 return TGSI_WRITEMASK_XYZ
; /* A ==> 1.0 */
1379 if (ST_DEBUG
& DEBUG_FALLBACK
)
1380 debug_printf("%s failed for src %s, dst %s\n",
1382 _mesa_lookup_enum_by_nr(srcFormat
),
1383 _mesa_lookup_enum_by_nr(dstLogicalFormat
));
1394 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1395 * Note that the region to copy has already been clipped so we know we
1396 * won't read from outside the source renderbuffer's bounds.
1398 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1401 st_copy_texsubimage(GLcontext
*ctx
,
1402 GLenum target
, GLint level
,
1403 GLint destX
, GLint destY
, GLint destZ
,
1404 GLint srcX
, GLint srcY
,
1405 GLsizei width
, GLsizei height
)
1407 struct gl_texture_unit
*texUnit
=
1408 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1409 struct gl_texture_object
*texObj
=
1410 _mesa_select_tex_object(ctx
, texUnit
, target
);
1411 struct gl_texture_image
*texImage
=
1412 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1413 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1414 const GLenum texBaseFormat
= texImage
->_BaseFormat
;
1415 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1416 struct st_renderbuffer
*strb
;
1417 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1418 struct pipe_screen
*screen
= pipe
->screen
;
1419 enum pipe_format dest_format
, src_format
;
1420 GLboolean use_fallback
= GL_TRUE
;
1421 GLboolean matching_base_formats
;
1422 GLuint format_writemask
;
1423 struct pipe_surface
*dest_surface
= NULL
;
1424 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1426 /* any rendering in progress must flushed before we grab the fb image */
1427 st_flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
1429 /* make sure finalize_textures has been called?
1431 if (0) st_validate_state(ctx
->st
);
1433 /* determine if copying depth or color data */
1434 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1435 texBaseFormat
== GL_DEPTH_STENCIL
) {
1436 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1439 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1440 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1443 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1444 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1472 if (width
< 0 || height
< 0)
1477 assert(strb
->surface
);
1478 assert(stImage
->pt
);
1480 src_format
= strb
->surface
->format
;
1481 dest_format
= stImage
->pt
->format
;
1484 * Determine if the src framebuffer and dest texture have the same
1485 * base format. We need this to detect a case such as the framebuffer
1486 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1487 * texture format stores RGBA we need to set A=1 (overriding the
1488 * framebuffer's alpha values). We can't do that with the blit or
1489 * textured-quad paths.
1491 matching_base_formats
=
1492 (_mesa_get_format_base_format(strb
->Base
.Format
) ==
1493 _mesa_get_format_base_format(texImage
->TexFormat
));
1494 format_writemask
= compatible_src_dst_formats(&strb
->Base
, texImage
);
1496 if (ctx
->_ImageTransferState
== 0x0) {
1498 if (pipe
->surface_copy
&&
1499 matching_base_formats
&&
1500 src_format
== dest_format
&&
1503 /* use surface_copy() / blit */
1505 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1506 stImage
->face
, stImage
->level
,
1508 PIPE_BUFFER_USAGE_GPU_WRITE
);
1510 /* for surface_copy(), y=0=top, always */
1511 pipe
->surface_copy(pipe
,
1520 use_fallback
= GL_FALSE
;
1522 else if (format_writemask
&&
1523 texBaseFormat
!= GL_DEPTH_COMPONENT
&&
1524 texBaseFormat
!= GL_DEPTH_STENCIL
&&
1525 screen
->is_format_supported(screen
, src_format
,
1527 PIPE_TEXTURE_USAGE_SAMPLER
,
1529 screen
->is_format_supported(screen
, dest_format
,
1531 PIPE_TEXTURE_USAGE_RENDER_TARGET
,
1533 /* draw textured quad to do the copy */
1536 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1537 stImage
->face
, stImage
->level
,
1539 PIPE_BUFFER_USAGE_GPU_WRITE
);
1542 srcY1
= strb
->Base
.Height
- srcY
- height
;
1543 srcY0
= srcY1
+ height
;
1547 srcY1
= srcY0
+ height
;
1549 util_blit_pixels_writemask(ctx
->st
->blit
,
1552 srcX
+ width
, srcY1
,
1555 destX
+ width
, destY
+ height
,
1556 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1558 use_fallback
= GL_FALSE
;
1562 pipe_surface_reference(&dest_surface
, NULL
);
1566 /* software fallback */
1567 fallback_copy_texsubimage(ctx
, target
, level
,
1568 strb
, stImage
, texBaseFormat
,
1569 destX
, destY
, destZ
,
1570 srcX
, srcY
, width
, height
);
1577 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1578 GLenum internalFormat
,
1579 GLint x
, GLint y
, GLsizei width
, GLint border
)
1581 struct gl_texture_unit
*texUnit
=
1582 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1583 struct gl_texture_object
*texObj
=
1584 _mesa_select_tex_object(ctx
, texUnit
, target
);
1585 struct gl_texture_image
*texImage
=
1586 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1588 /* Setup or redefine the texture object, texture and texture
1589 * image. Don't populate yet.
1591 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1593 GL_RGBA
, CHAN_TYPE
, NULL
,
1594 &ctx
->DefaultPacking
, texObj
, texImage
);
1596 st_copy_texsubimage(ctx
, target
, level
,
1597 0, 0, 0, /* destX,Y,Z */
1598 x
, y
, width
, 1); /* src X, Y, size */
1603 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1604 GLenum internalFormat
,
1605 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1608 struct gl_texture_unit
*texUnit
=
1609 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1610 struct gl_texture_object
*texObj
=
1611 _mesa_select_tex_object(ctx
, texUnit
, target
);
1612 struct gl_texture_image
*texImage
=
1613 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1615 /* Setup or redefine the texture object, texture and texture
1616 * image. Don't populate yet.
1618 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1619 width
, height
, border
,
1620 GL_RGBA
, CHAN_TYPE
, NULL
,
1621 &ctx
->DefaultPacking
, texObj
, texImage
);
1623 st_copy_texsubimage(ctx
, target
, level
,
1624 0, 0, 0, /* destX,Y,Z */
1625 x
, y
, width
, height
); /* src X, Y, size */
1630 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1631 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1633 const GLint yoffset
= 0, zoffset
= 0;
1634 const GLsizei height
= 1;
1635 st_copy_texsubimage(ctx
, target
, level
,
1636 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1637 x
, y
, width
, height
); /* src X, Y, size */
1642 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1643 GLint xoffset
, GLint yoffset
,
1644 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1646 const GLint zoffset
= 0;
1647 st_copy_texsubimage(ctx
, target
, level
,
1648 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1649 x
, y
, width
, height
); /* src X, Y, size */
1654 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1655 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1656 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1658 st_copy_texsubimage(ctx
, target
, level
,
1659 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1660 x
, y
, width
, height
); /* src X, Y, size */
1665 copy_image_data_to_texture(struct st_context
*st
,
1666 struct st_texture_object
*stObj
,
1668 struct st_texture_image
*stImage
)
1671 /* Copy potentially with the blitter:
1673 st_texture_image_copy(st
->pipe
,
1674 stObj
->pt
, dstLevel
, /* dest texture, level */
1675 stImage
->pt
, /* src texture */
1679 pipe_texture_reference(&stImage
->pt
, NULL
);
1681 else if (stImage
->base
.Data
) {
1682 /* More straightforward upload.
1685 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1686 PIPE_TRANSFER_WRITE
);
1689 st_texture_image_data(st
,
1694 stImage
->base
.RowStride
*
1695 stObj
->pt
->block
.size
,
1696 stImage
->base
.RowStride
*
1697 stImage
->base
.Height
*
1698 stObj
->pt
->block
.size
);
1699 _mesa_align_free(stImage
->base
.Data
);
1700 stImage
->base
.Data
= NULL
;
1703 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
1708 * Called during state validation. When this function is finished,
1709 * the texture object should be ready for rendering.
1710 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1713 st_finalize_texture(GLcontext
*ctx
,
1714 struct pipe_context
*pipe
,
1715 struct gl_texture_object
*tObj
,
1716 GLboolean
*needFlush
)
1718 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1719 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1720 GLuint blockSize
, face
;
1721 struct st_texture_image
*firstImage
;
1723 *needFlush
= GL_FALSE
;
1725 if (stObj
->base
._Complete
) {
1726 /* The texture is complete and we know exactly how many mipmap levels
1727 * are present/needed. This is conditional because we may be called
1728 * from the st_generate_mipmap() function when the texture object is
1729 * incomplete. In that case, we'll have set stObj->lastLevel before
1732 if (stObj
->base
.MinFilter
== GL_LINEAR
||
1733 stObj
->base
.MinFilter
== GL_NEAREST
)
1734 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1736 stObj
->lastLevel
= stObj
->base
._MaxLevel
- stObj
->base
.BaseLevel
;
1739 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1741 /* If both firstImage and stObj point to a texture which can contain
1742 * all active images, favour firstImage. Note that because of the
1743 * completeness requirement, we know that the image dimensions
1746 if (firstImage
->pt
&&
1747 firstImage
->pt
!= stObj
->pt
&&
1748 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1749 pipe_texture_reference(&stObj
->pt
, firstImage
->pt
);
1752 /* bytes per pixel block (blocks are usually 1x1) */
1753 blockSize
= _mesa_get_format_bytes(firstImage
->base
.TexFormat
);
1755 /* If we already have a gallium texture, check that it matches the texture
1756 * object's format, target, size, num_levels, etc.
1759 const enum pipe_format fmt
=
1760 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1761 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1762 stObj
->pt
->format
!= fmt
||
1763 stObj
->pt
->last_level
< stObj
->lastLevel
||
1764 stObj
->pt
->width
[0] != firstImage
->base
.Width2
||
1765 stObj
->pt
->height
[0] != firstImage
->base
.Height2
||
1766 stObj
->pt
->depth
[0] != firstImage
->base
.Depth2
||
1767 stObj
->pt
->block
.size
!= blockSize
)
1769 pipe_texture_reference(&stObj
->pt
, NULL
);
1770 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1774 /* May need to create a new gallium texture:
1777 const enum pipe_format fmt
=
1778 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1779 GLuint usage
= default_usage(fmt
);
1781 stObj
->pt
= st_texture_create(ctx
->st
,
1782 gl_target_to_pipe(stObj
->base
.Target
),
1785 firstImage
->base
.Width2
,
1786 firstImage
->base
.Height2
,
1787 firstImage
->base
.Depth2
,
1791 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1796 /* Pull in any images not in the object's texture:
1798 for (face
= 0; face
< nr_faces
; face
++) {
1800 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1801 struct st_texture_image
*stImage
=
1802 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1804 /* Need to import images in main memory or held in other textures.
1806 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1807 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1808 *needFlush
= GL_TRUE
;
1818 * Returns pointer to a default/dummy texture.
1819 * This is typically used when the current shader has tex/sample instructions
1820 * but the user has not provided a (any) texture(s).
1822 struct gl_texture_object
*
1823 st_get_default_texture(struct st_context
*st
)
1825 if (!st
->default_texture
) {
1826 static const GLenum target
= GL_TEXTURE_2D
;
1827 GLubyte pixels
[16][16][4];
1828 struct gl_texture_object
*texObj
;
1829 struct gl_texture_image
*texImg
;
1832 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1833 * when attempting to sample incomplete textures.
1835 for (i
= 0; i
< 16; i
++) {
1836 for (j
= 0; j
< 16; j
++) {
1837 pixels
[i
][j
][0] = 0;
1838 pixels
[i
][j
][1] = 0;
1839 pixels
[i
][j
][2] = 0;
1840 pixels
[i
][j
][3] = 255;
1844 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1846 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1848 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1849 16, 16, 1, 0, /* w, h, d, border */
1852 st_TexImage(st
->ctx
, 2, target
,
1853 0, GL_RGBA
, /* level, intformat */
1854 16, 16, 1, 0, /* w, h, d, border */
1855 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1856 &st
->ctx
->DefaultPacking
,
1860 texObj
->MinFilter
= GL_NEAREST
;
1861 texObj
->MagFilter
= GL_NEAREST
;
1862 texObj
->_Complete
= GL_TRUE
;
1864 st
->default_texture
= texObj
;
1866 return st
->default_texture
;
1871 st_init_texture_functions(struct dd_function_table
*functions
)
1873 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1874 functions
->TexImage1D
= st_TexImage1D
;
1875 functions
->TexImage2D
= st_TexImage2D
;
1876 functions
->TexImage3D
= st_TexImage3D
;
1877 functions
->TexSubImage1D
= st_TexSubImage1D
;
1878 functions
->TexSubImage2D
= st_TexSubImage2D
;
1879 functions
->TexSubImage3D
= st_TexSubImage3D
;
1880 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1881 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1882 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1883 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1884 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1885 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1886 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1887 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1888 functions
->GenerateMipmap
= st_generate_mipmap
;
1890 functions
->GetTexImage
= st_GetTexImage
;
1892 /* compressed texture functions */
1893 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1894 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1896 functions
->NewTextureObject
= st_NewTextureObject
;
1897 functions
->NewTextureImage
= st_NewTextureImage
;
1898 functions
->DeleteTexture
= st_DeleteTextureObject
;
1899 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1900 functions
->UpdateTexturePalette
= 0;
1902 functions
->TextureMemCpy
= do_memcpy
;
1904 /* XXX Temporary until we can query pipe's texture sizes */
1905 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;