1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "main/mfeatures.h"
29 #include "main/bufferobj.h"
31 #include "main/convolve.h"
33 #include "main/enums.h"
34 #include "main/fbobject.h"
35 #include "main/formats.h"
36 #include "main/image.h"
37 #include "main/imports.h"
38 #include "main/macros.h"
39 #include "main/mipmap.h"
40 #include "main/texcompress.h"
41 #include "main/texfetch.h"
42 #include "main/texgetimage.h"
43 #include "main/teximage.h"
44 #include "main/texobj.h"
45 #include "main/texstore.h"
47 #include "state_tracker/st_debug.h"
48 #include "state_tracker/st_context.h"
49 #include "state_tracker/st_cb_fbo.h"
50 #include "state_tracker/st_cb_texture.h"
51 #include "state_tracker/st_format.h"
52 #include "state_tracker/st_public.h"
53 #include "state_tracker/st_texture.h"
54 #include "state_tracker/st_gen_mipmap.h"
55 #include "state_tracker/st_inlines.h"
56 #include "state_tracker/st_atom.h"
58 #include "pipe/p_context.h"
59 #include "pipe/p_defines.h"
60 #include "pipe/p_inlines.h"
61 #include "pipe/p_shader_tokens.h"
62 #include "util/u_tile.h"
63 #include "util/u_blit.h"
64 #include "util/u_format.h"
65 #include "util/u_surface.h"
66 #include "util/u_math.h"
69 #define DBG if (0) printf
72 static enum pipe_texture_target
73 gl_target_to_pipe(GLenum target
)
77 return PIPE_TEXTURE_1D
;
80 case GL_TEXTURE_RECTANGLE_NV
:
81 return PIPE_TEXTURE_2D
;
84 return PIPE_TEXTURE_3D
;
86 case GL_TEXTURE_CUBE_MAP_ARB
:
87 return PIPE_TEXTURE_CUBE
;
96 /** called via ctx->Driver.NewTextureImage() */
97 static struct gl_texture_image
*
98 st_NewTextureImage(GLcontext
* ctx
)
100 DBG("%s\n", __FUNCTION__
);
102 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
106 /** called via ctx->Driver.NewTextureObject() */
107 static struct gl_texture_object
*
108 st_NewTextureObject(GLcontext
* ctx
, GLuint name
, GLenum target
)
110 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
112 DBG("%s\n", __FUNCTION__
);
113 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
118 /** called via ctx->Driver.DeleteTextureImage() */
120 st_DeleteTextureObject(GLcontext
*ctx
,
121 struct gl_texture_object
*texObj
)
123 struct st_texture_object
*stObj
= st_texture_object(texObj
);
125 pipe_texture_reference(&stObj
->pt
, NULL
);
127 _mesa_delete_texture_object(ctx
, texObj
);
131 /** called via ctx->Driver.FreeTexImageData() */
133 st_FreeTextureImageData(GLcontext
* ctx
, struct gl_texture_image
*texImage
)
135 struct st_texture_image
*stImage
= st_texture_image(texImage
);
137 DBG("%s\n", __FUNCTION__
);
140 pipe_texture_reference(&stImage
->pt
, NULL
);
143 if (texImage
->Data
) {
144 _mesa_align_free(texImage
->Data
);
145 texImage
->Data
= NULL
;
151 * From linux kernel i386 header files, copes with odd sizes better
152 * than COPY_DWORDS would:
153 * XXX Put this in src/mesa/main/imports.h ???
155 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
157 __memcpy(void *to
, const void *from
, size_t n
)
160 __asm__
__volatile__("rep ; movsl\n\t"
164 "1:\ttestb $1,%b4\n\t"
166 "movsb\n" "2:":"=&c"(d0
), "=&D"(d1
), "=&S"(d2
)
167 :"0"(n
/ 4), "q"(n
), "1"((long) to
), "2"((long) from
)
172 #define __memcpy(a,b,c) memcpy(a,b,c)
177 * The system memcpy (at least on ubuntu 5.10) has problems copying
178 * to agp (writecombined) memory from a source which isn't 64-byte
179 * aligned - there is a 4x performance falloff.
181 * The x86 __memcpy is immune to this but is slightly slower
182 * (10%-ish) than the system memcpy.
184 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
185 * isn't much faster than x86_memcpy for agp copies.
187 * TODO: switch dynamically.
190 do_memcpy(void *dest
, const void *src
, size_t n
)
192 if ((((unsigned long) src
) & 63) || (((unsigned long) dest
) & 63)) {
193 return __memcpy(dest
, src
, n
);
196 return memcpy(dest
, src
, n
);
201 * Return default texture usage bitmask for the given texture format.
204 default_usage(enum pipe_format fmt
)
206 GLuint usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
207 if (util_format_is_depth_or_stencil(fmt
))
208 usage
|= PIPE_TEXTURE_USAGE_DEPTH_STENCIL
;
210 usage
|= PIPE_TEXTURE_USAGE_RENDER_TARGET
;
216 * Allocate a pipe_texture object for the given st_texture_object using
217 * the given st_texture_image to guess the mipmap size/levels.
220 * Otherwise, store it in memory if (Border != 0) or (any dimension ==
223 * Otherwise, if max_level >= level >= min_level, create texture with
224 * space for images from min_level down to max_level.
226 * Otherwise, create texture with space for images from (level 0)..(1x1).
227 * Consider pruning this texture at a validation if the saving is worth it.
230 guess_and_alloc_texture(struct st_context
*st
,
231 struct st_texture_object
*stObj
,
232 const struct st_texture_image
*stImage
)
236 GLuint width
= stImage
->base
.Width2
; /* size w/out border */
237 GLuint height
= stImage
->base
.Height2
;
238 GLuint depth
= stImage
->base
.Depth2
;
240 enum pipe_format fmt
;
242 DBG("%s\n", __FUNCTION__
);
247 (GLint
) stImage
->level
> stObj
->base
.BaseLevel
&&
248 (stImage
->base
.Width
== 1 ||
249 (stObj
->base
.Target
!= GL_TEXTURE_1D
&&
250 stImage
->base
.Height
== 1) ||
251 (stObj
->base
.Target
== GL_TEXTURE_3D
&&
252 stImage
->base
.Depth
== 1)))
255 /* If this image disrespects BaseLevel, allocate from level zero.
256 * Usually BaseLevel == 0, so it's unlikely to happen.
258 if ((GLint
) stImage
->level
< stObj
->base
.BaseLevel
)
261 firstLevel
= stObj
->base
.BaseLevel
;
264 /* Figure out image dimensions at start level.
266 for (i
= stImage
->level
; i
> firstLevel
; i
--) {
275 if (width
== 0 || height
== 0 || depth
== 0) {
276 /* no texture needed */
280 /* Guess a reasonable value for lastLevel. This is probably going
281 * to be wrong fairly often and might mean that we have to look at
282 * resizable buffers, or require that buffers implement lazy
283 * pagetable arrangements.
285 if ((stObj
->base
.MinFilter
== GL_NEAREST
||
286 stObj
->base
.MinFilter
== GL_LINEAR
||
287 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
288 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
289 !stObj
->base
.GenerateMipmap
&&
290 stImage
->level
== firstLevel
) {
291 /* only alloc space for a single mipmap level */
292 lastLevel
= firstLevel
;
295 /* alloc space for a full mipmap */
296 GLuint l2width
= util_logbase2(width
);
297 GLuint l2height
= util_logbase2(height
);
298 GLuint l2depth
= util_logbase2(depth
);
299 lastLevel
= firstLevel
+ MAX2(MAX2(l2width
, l2height
), l2depth
);
302 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
);
304 usage
= default_usage(fmt
);
306 stObj
->pt
= st_texture_create(st
,
307 gl_target_to_pipe(stObj
->base
.Target
),
315 DBG("%s - success\n", __FUNCTION__
);
320 * Adjust pixel unpack params and image dimensions to strip off the
322 * Gallium doesn't support texture borders. They've seldem been used
323 * and seldom been implemented correctly anyway.
324 * \param unpackNew returns the new pixel unpack parameters
327 strip_texture_border(GLint border
,
328 GLint
*width
, GLint
*height
, GLint
*depth
,
329 const struct gl_pixelstore_attrib
*unpack
,
330 struct gl_pixelstore_attrib
*unpackNew
)
332 assert(border
> 0); /* sanity check */
334 *unpackNew
= *unpack
;
336 if (unpackNew
->RowLength
== 0)
337 unpackNew
->RowLength
= *width
;
339 if (depth
&& unpackNew
->ImageHeight
== 0)
340 unpackNew
->ImageHeight
= *height
;
342 unpackNew
->SkipPixels
+= border
;
344 unpackNew
->SkipRows
+= border
;
346 unpackNew
->SkipImages
+= border
;
349 *width
= *width
- 2 * border
;
350 if (height
&& *height
>= 3)
351 *height
= *height
- 2 * border
;
352 if (depth
&& *depth
>= 3)
353 *depth
= *depth
- 2 * border
;
358 * Try to do texture compression via rendering. If the Gallium driver
359 * can render into a compressed surface this will allow us to do texture
361 * \return GL_TRUE for success, GL_FALSE for failure
364 compress_with_blit(GLcontext
* ctx
,
365 GLenum target
, GLint level
,
366 GLint xoffset
, GLint yoffset
, GLint zoffset
,
367 GLint width
, GLint height
, GLint depth
,
368 GLenum format
, GLenum type
, const void *pixels
,
369 const struct gl_pixelstore_attrib
*unpack
,
370 struct gl_texture_image
*texImage
)
372 const GLuint dstImageOffsets
[1] = {0};
373 struct st_texture_image
*stImage
= st_texture_image(texImage
);
374 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
375 gl_format mesa_format
;
376 struct pipe_texture templ
;
377 struct pipe_texture
*src_tex
;
378 struct pipe_surface
*dst_surface
;
379 struct pipe_transfer
*tex_xfer
;
383 /* XXX: Can this happen? Should we assert? */
387 /* get destination surface (in the compressed texture) */
388 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
389 stImage
->face
, stImage
->level
, 0,
390 PIPE_BUFFER_USAGE_GPU_WRITE
);
392 /* can't render into this format (or other problem) */
396 /* Choose format for the temporary RGBA texture image.
398 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
403 /* Create the temporary source texture
405 memset(&templ
, 0, sizeof(templ
));
406 templ
.target
= PIPE_TEXTURE_2D
;
407 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
);
408 templ
.width0
= width
;
409 templ
.height0
= height
;
411 templ
.last_level
= 0;
412 templ
.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
413 src_tex
= screen
->texture_create(screen
, &templ
);
418 /* Put user's tex data into the temporary texture
420 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
421 0, 0, 0, /* face, level are zero */
423 0, 0, width
, height
); /* x, y, w, h */
424 map
= screen
->transfer_map(screen
, tex_xfer
);
426 _mesa_texstore(ctx
, 2, GL_RGBA
, mesa_format
,
428 0, 0, 0, /* dest x/y/z offset */
429 tex_xfer
->stride
, /* dest row stride (bytes) */
430 dstImageOffsets
, /* image offsets (for 3D only) */
431 width
, height
, 1, /* size */
432 format
, type
, /* source format/type */
433 pixels
, /* source data */
434 unpack
); /* source data packing */
436 screen
->transfer_unmap(screen
, tex_xfer
);
437 screen
->tex_transfer_destroy(tex_xfer
);
439 /* copy / compress image */
440 util_blit_pixels_tex(ctx
->st
->blit
,
441 src_tex
, /* pipe_texture (src) */
442 0, 0, /* src x0, y0 */
443 width
, height
, /* src x1, y1 */
444 dst_surface
, /* pipe_surface (dst) */
445 xoffset
, yoffset
, /* dst x0, y0 */
446 xoffset
+ width
, /* dst x1 */
447 yoffset
+ height
, /* dst y1 */
449 PIPE_TEX_MIPFILTER_NEAREST
);
451 pipe_surface_reference(&dst_surface
, NULL
);
452 pipe_texture_reference(&src_tex
, NULL
);
459 * Do glTexImage1/2/3D().
462 st_TexImage(GLcontext
* ctx
,
464 GLenum target
, GLint level
,
465 GLint internalFormat
,
466 GLint width
, GLint height
, GLint depth
,
468 GLenum format
, GLenum type
, const void *pixels
,
469 const struct gl_pixelstore_attrib
*unpack
,
470 struct gl_texture_object
*texObj
,
471 struct gl_texture_image
*texImage
,
472 GLsizei imageSize
, GLboolean compressed_src
)
474 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
475 struct st_texture_object
*stObj
= st_texture_object(texObj
);
476 struct st_texture_image
*stImage
= st_texture_image(texImage
);
477 GLint postConvWidth
, postConvHeight
;
478 GLint texelBytes
, sizeInBytes
;
479 GLuint dstRowStride
= 0;
480 struct gl_pixelstore_attrib unpackNB
;
481 enum pipe_transfer_usage transfer_usage
= 0;
483 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
484 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
486 /* switch to "normal" */
487 if (stObj
->surface_based
) {
488 _mesa_clear_texture_object(ctx
, texObj
);
489 stObj
->surface_based
= GL_FALSE
;
492 /* gallium does not support texture borders, strip it off */
494 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
496 texImage
->Width
= width
;
497 texImage
->Height
= height
;
498 texImage
->Depth
= depth
;
499 texImage
->Border
= 0;
503 postConvWidth
= width
;
504 postConvHeight
= height
;
506 stImage
->face
= _mesa_tex_target_to_face(target
);
507 stImage
->level
= level
;
510 if (ctx
->_ImageTransferState
& IMAGE_CONVOLUTION_BIT
) {
511 _mesa_adjust_image_for_convolution(ctx
, dims
, &postConvWidth
,
516 _mesa_set_fetch_functions(texImage
, dims
);
518 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
519 /* must be a compressed format */
523 texelBytes
= _mesa_get_format_bytes(texImage
->TexFormat
);
525 /* Minimum pitch of 32 bytes */
526 if (postConvWidth
* texelBytes
< 32) {
527 postConvWidth
= 32 / texelBytes
;
528 texImage
->RowStride
= postConvWidth
;
531 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
532 /*assert(texImage->RowStride == postConvWidth);*/
535 /* Release the reference to a potentially orphaned buffer.
536 * Release any old malloced memory.
539 pipe_texture_reference(&stImage
->pt
, NULL
);
540 assert(!texImage
->Data
);
542 else if (texImage
->Data
) {
543 _mesa_align_free(texImage
->Data
);
546 if (width
== 0 || height
== 0 || depth
== 0) {
547 /* stop after freeing old image */
551 /* If this is the only mipmap level in the texture, could call
552 * bmBufferData with NULL data to free the old block and avoid
553 * waiting on any outstanding fences.
556 if (stObj
->teximage_realloc
||
557 level
> (GLint
) stObj
->pt
->last_level
||
558 (stObj
->pt
->last_level
== level
&&
559 stObj
->pt
->target
!= PIPE_TEXTURE_CUBE
&&
560 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
561 stImage
->face
, stImage
->level
))) {
563 pipe_texture_reference(&stObj
->pt
, NULL
);
565 stObj
->teximage_realloc
= FALSE
;
570 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
572 /* Probably out of memory.
573 * Try flushing any pending rendering, then retry.
576 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
578 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
584 assert(!stImage
->pt
);
587 st_texture_match_image(stObj
->pt
, &stImage
->base
,
588 stImage
->face
, stImage
->level
)) {
590 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
595 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
597 /* st_CopyTexImage calls this function with pixels == NULL, with
598 * the expectation that the texture will be set up but nothing
599 * more will be done. This is where those calls return:
601 if (compressed_src
) {
602 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
604 "glCompressedTexImage");
607 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
609 pixels
, unpack
, "glTexImage");
612 /* Note: we can't check for pixels==NULL until after we've allocated
613 * memory for the texture.
616 /* See if we can do texture compression with a blit/render.
618 if (!compressed_src
&&
620 _mesa_is_format_compressed(texImage
->TexFormat
) &&
621 screen
->is_format_supported(screen
,
624 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
628 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
629 format
, type
, pixels
, unpack
, texImage
)) {
635 if (format
== GL_DEPTH_COMPONENT
&&
636 util_format_is_depth_and_stencil(stImage
->pt
->format
))
637 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
639 transfer_usage
= PIPE_TRANSFER_WRITE
;
641 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
642 transfer_usage
, 0, 0,
644 stImage
->base
.Height
);
645 if(stImage
->transfer
)
646 dstRowStride
= stImage
->transfer
->stride
;
649 /* Allocate regular memory and store the image there temporarily. */
650 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
651 sizeInBytes
= _mesa_format_image_size(texImage
->TexFormat
,
655 dstRowStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
659 dstRowStride
= postConvWidth
* texelBytes
;
660 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
663 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
666 if (!texImage
->Data
) {
667 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
674 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
675 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
677 /* Copy data. Would like to know when it's ok for us to eg. use
678 * the blitter to copy. Or, use the hardware to do the format
679 * conversion and copy:
681 if (compressed_src
) {
682 const GLuint srcImageStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
683 if(dstRowStride
== srcImageStride
)
684 memcpy(texImage
->Data
, pixels
, imageSize
);
687 char *dst
= texImage
->Data
;
688 const char *src
= pixels
;
689 GLuint i
, bw
, bh
, lines
;
690 _mesa_get_format_block_size(texImage
->TexFormat
, &bw
, &bh
);
691 lines
= (height
+ bh
- 1) / bh
;
693 for(i
= 0; i
< lines
; ++i
)
695 memcpy(dst
, src
, srcImageStride
);
697 src
+= srcImageStride
;
702 const GLuint srcImageStride
=
703 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
705 const GLubyte
*src
= (const GLubyte
*) pixels
;
707 for (i
= 0; i
< depth
; i
++) {
708 if (!_mesa_texstore(ctx
, dims
,
709 texImage
->_BaseFormat
,
712 0, 0, 0, /* dstX/Y/Zoffset */
714 texImage
->ImageOffsets
,
716 format
, type
, src
, unpack
)) {
717 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
720 if (stImage
->pt
&& i
+ 1 < depth
) {
721 /* unmap this slice */
722 st_texture_image_unmap(ctx
->st
, stImage
);
723 /* map next slice of 3D texture */
724 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
725 transfer_usage
, 0, 0,
727 stImage
->base
.Height
);
728 src
+= srcImageStride
;
734 _mesa_unmap_teximage_pbo(ctx
, unpack
);
736 if (stImage
->pt
&& texImage
->Data
) {
737 st_texture_image_unmap(ctx
->st
, stImage
);
738 texImage
->Data
= NULL
;
744 st_TexImage3D(GLcontext
* ctx
,
745 GLenum target
, GLint level
,
746 GLint internalFormat
,
747 GLint width
, GLint height
, GLint depth
,
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
, 3, target
, level
, internalFormat
, width
, height
, depth
,
755 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
761 st_TexImage2D(GLcontext
* ctx
,
762 GLenum target
, GLint level
,
763 GLint internalFormat
,
764 GLint width
, GLint height
, GLint border
,
765 GLenum format
, GLenum type
, const void *pixels
,
766 const struct gl_pixelstore_attrib
*unpack
,
767 struct gl_texture_object
*texObj
,
768 struct gl_texture_image
*texImage
)
770 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
771 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
776 st_TexImage1D(GLcontext
* ctx
,
777 GLenum target
, GLint level
,
778 GLint internalFormat
,
779 GLint width
, GLint border
,
780 GLenum format
, GLenum type
, const void *pixels
,
781 const struct gl_pixelstore_attrib
*unpack
,
782 struct gl_texture_object
*texObj
,
783 struct gl_texture_image
*texImage
)
785 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
786 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
791 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
792 GLint internalFormat
,
793 GLint width
, GLint height
, GLint border
,
794 GLsizei imageSize
, const GLvoid
*data
,
795 struct gl_texture_object
*texObj
,
796 struct gl_texture_image
*texImage
)
798 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
799 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
805 * glGetTexImage() helper: decompress a compressed texture by rendering
806 * a textured quad. Store the results in the user's buffer.
809 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
810 GLenum format
, GLenum type
, GLvoid
*pixels
,
811 struct gl_texture_object
*texObj
,
812 struct gl_texture_image
*texImage
)
814 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
815 struct st_texture_image
*stImage
= st_texture_image(texImage
);
816 const GLuint width
= texImage
->Width
;
817 const GLuint height
= texImage
->Height
;
818 struct pipe_surface
*dst_surface
;
819 struct pipe_texture
*dst_texture
;
820 struct pipe_transfer
*tex_xfer
;
822 /* create temp / dest surface */
823 if (!util_create_rgba_surface(screen
, width
, height
,
824 &dst_texture
, &dst_surface
)) {
825 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
826 "in decompress_with_blit()");
830 /* blit/render/decompress */
831 util_blit_pixels_tex(ctx
->st
->blit
,
832 stImage
->pt
, /* pipe_texture (src) */
833 0, 0, /* src x0, y0 */
834 width
, height
, /* src x1, y1 */
835 dst_surface
, /* pipe_surface (dst) */
836 0, 0, /* dst x0, y0 */
837 width
, height
, /* dst x1, y1 */
839 PIPE_TEX_MIPFILTER_NEAREST
);
841 /* map the dst_surface so we can read from it */
842 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
843 dst_texture
, 0, 0, 0,
845 0, 0, width
, height
);
847 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
849 /* copy/pack data into user buffer */
850 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
852 const uint bytesPerRow
= width
* util_format_get_blocksize(stImage
->pt
->format
);
853 ubyte
*map
= screen
->transfer_map(screen
, tex_xfer
);
855 for (row
= 0; row
< height
; row
++) {
856 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
857 height
, format
, type
, row
, 0);
858 memcpy(dest
, map
, bytesPerRow
);
859 map
+= tex_xfer
->stride
;
861 screen
->transfer_unmap(screen
, tex_xfer
);
864 /* format translation via floats */
866 for (row
= 0; row
< height
; row
++) {
867 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
868 GLfloat rgba
[4 * MAX_WIDTH
];
869 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
870 height
, format
, type
, row
, 0);
872 if (ST_DEBUG
& DEBUG_FALLBACK
)
873 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
875 /* get float[4] rgba row from surface */
876 pipe_get_tile_rgba(tex_xfer
, 0, row
, width
, 1, rgba
);
878 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
879 type
, dest
, &ctx
->Pack
, transferOps
);
883 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
885 /* destroy the temp / dest surface */
886 util_destroy_rgba_surface(dst_texture
, dst_surface
);
892 * Need to map texture image into memory before copying image data,
896 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
897 GLenum format
, GLenum type
, GLvoid
* pixels
,
898 struct gl_texture_object
*texObj
,
899 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
901 struct st_texture_image
*stImage
= st_texture_image(texImage
);
902 const GLuint dstImageStride
=
903 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
909 util_format_is_compressed(stImage
->pt
->format
) &&
911 /* Need to decompress the texture.
912 * We'll do this by rendering a textured quad.
913 * Note that we only expect RGBA formats (no Z/depth formats).
915 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
922 /* Image is stored in hardware format in a buffer managed by the
923 * kernel. Need to explicitly map and unmap it.
925 unsigned face
= _mesa_tex_target_to_face(target
);
927 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
930 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
931 PIPE_TRANSFER_READ
, 0, 0,
933 stImage
->base
.Height
);
934 texImage
->RowStride
= stImage
->transfer
->stride
/ util_format_get_blocksize(stImage
->pt
->format
);
937 /* Otherwise, the image should actually be stored in
938 * texImage->Data. This is pretty confusing for
939 * everybody, I'd much prefer to separate the two functions of
940 * texImage->Data - storage for texture images in main memory
941 * and access (ie mappings) of images. In other words, we'd
942 * create a new texImage->Map field and leave Data simply for
945 assert(texImage
->Data
);
948 depth
= texImage
->Depth
;
951 dest
= (GLubyte
*) pixels
;
953 for (i
= 0; i
< depth
; i
++) {
954 if (compressed_dst
) {
955 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
959 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
963 if (stImage
->pt
&& i
+ 1 < depth
) {
964 /* unmap this slice */
965 st_texture_image_unmap(ctx
->st
, stImage
);
966 /* map next slice of 3D texture */
967 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
968 PIPE_TRANSFER_READ
, 0, 0,
970 stImage
->base
.Height
);
971 dest
+= dstImageStride
;
975 texImage
->Depth
= depth
;
979 st_texture_image_unmap(ctx
->st
, stImage
);
980 texImage
->Data
= NULL
;
986 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
987 GLenum format
, GLenum type
, GLvoid
* pixels
,
988 struct gl_texture_object
*texObj
,
989 struct gl_texture_image
*texImage
)
991 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
997 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
999 struct gl_texture_object
*texObj
,
1000 struct gl_texture_image
*texImage
)
1002 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1009 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1010 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1011 GLint width
, GLint height
, GLint depth
,
1012 GLenum format
, GLenum type
, const void *pixels
,
1013 const struct gl_pixelstore_attrib
*packing
,
1014 struct gl_texture_object
*texObj
,
1015 struct gl_texture_image
*texImage
)
1017 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1018 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1019 GLuint dstRowStride
;
1020 const GLuint srcImageStride
=
1021 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1024 /* init to silence warning only: */
1025 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1027 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1028 _mesa_lookup_enum_by_nr(target
),
1029 level
, xoffset
, yoffset
, width
, height
);
1032 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1033 type
, pixels
, packing
, "glTexSubImage2D");
1037 /* See if we can do texture compression with a blit/render.
1039 if (!ctx
->Mesa_DXTn
&&
1040 _mesa_is_format_compressed(texImage
->TexFormat
) &&
1041 screen
->is_format_supported(screen
,
1042 stImage
->pt
->format
,
1043 stImage
->pt
->target
,
1044 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1045 if (compress_with_blit(ctx
, target
, level
,
1046 xoffset
, yoffset
, zoffset
,
1047 width
, height
, depth
,
1048 format
, type
, pixels
, packing
, texImage
)) {
1053 /* Map buffer if necessary. Need to lock to prevent other contexts
1054 * from uploading the buffer under us.
1057 unsigned face
= _mesa_tex_target_to_face(target
);
1059 if (format
== GL_DEPTH_COMPONENT
&&
1060 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1061 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1063 transfer_usage
= PIPE_TRANSFER_WRITE
;
1065 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1067 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1073 if (!texImage
->Data
) {
1074 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1078 src
= (const GLubyte
*) pixels
;
1079 dstRowStride
= stImage
->transfer
->stride
;
1081 for (i
= 0; i
< depth
; i
++) {
1082 if (!_mesa_texstore(ctx
, dims
, texImage
->_BaseFormat
,
1083 texImage
->TexFormat
,
1087 texImage
->ImageOffsets
,
1089 format
, type
, src
, packing
)) {
1090 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1093 if (stImage
->pt
&& i
+ 1 < depth
) {
1094 /* unmap this slice */
1095 st_texture_image_unmap(ctx
->st
, stImage
);
1096 /* map next slice of 3D texture */
1097 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1102 src
+= srcImageStride
;
1107 _mesa_unmap_teximage_pbo(ctx
, packing
);
1109 if (stImage
->pt
&& texImage
->Data
) {
1110 st_texture_image_unmap(ctx
->st
, stImage
);
1111 texImage
->Data
= NULL
;
1118 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1119 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1120 GLsizei width
, GLsizei height
, GLsizei depth
,
1121 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1122 const struct gl_pixelstore_attrib
*packing
,
1123 struct gl_texture_object
*texObj
,
1124 struct gl_texture_image
*texImage
)
1126 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1127 width
, height
, depth
, format
, type
,
1128 pixels
, packing
, texObj
, texImage
);
1133 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1134 GLint xoffset
, GLint yoffset
,
1135 GLsizei width
, GLsizei height
,
1136 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1137 const struct gl_pixelstore_attrib
*packing
,
1138 struct gl_texture_object
*texObj
,
1139 struct gl_texture_image
*texImage
)
1141 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1142 width
, height
, 1, format
, type
,
1143 pixels
, packing
, texObj
, texImage
);
1148 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1149 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1150 const GLvoid
* pixels
,
1151 const struct gl_pixelstore_attrib
*packing
,
1152 struct gl_texture_object
*texObj
,
1153 struct gl_texture_image
*texImage
)
1155 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1156 format
, type
, pixels
, packing
, texObj
, texImage
);
1161 st_CompressedTexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1162 GLint xoffset
, GLsizei width
,
1164 GLsizei imageSize
, const GLvoid
*data
,
1165 struct gl_texture_object
*texObj
,
1166 struct gl_texture_image
*texImage
)
1173 st_CompressedTexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1174 GLint xoffset
, GLint yoffset
,
1175 GLsizei width
, GLint height
,
1177 GLsizei imageSize
, const GLvoid
*data
,
1178 struct gl_texture_object
*texObj
,
1179 struct gl_texture_image
*texImage
)
1181 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1185 enum pipe_format pformat
= stImage
->pt
->format
;
1188 unsigned face
= _mesa_tex_target_to_face(target
);
1190 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1191 PIPE_TRANSFER_WRITE
);
1192 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
1193 PIPE_TRANSFER_WRITE
,
1197 srcBlockStride
= util_format_get_stride(pformat
, width
);
1198 dstBlockStride
= stImage
->transfer
->stride
;
1200 assert(stImage
->pt
);
1201 /* TODO find good values for block and strides */
1202 /* TODO also adjust texImage->data for yoffset/xoffset */
1206 if (!texImage
->Data
) {
1207 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1211 assert(xoffset
% util_format_get_blockwidth(pformat
) == 0);
1212 assert(yoffset
% util_format_get_blockheight(pformat
) == 0);
1213 assert(width
% util_format_get_blockwidth(pformat
) == 0);
1214 assert(height
% util_format_get_blockheight(pformat
) == 0);
1216 for (y
= 0; y
< height
; y
+= util_format_get_blockheight(pformat
)) {
1217 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1218 const char *src
= (const char*)data
+ srcBlockStride
* util_format_get_nblocksy(pformat
, y
);
1219 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* util_format_get_nblocksy(pformat
, y
);
1220 memcpy(dst
, src
, util_format_get_stride(pformat
, width
));
1224 st_texture_image_unmap(ctx
->st
, stImage
);
1225 texImage
->Data
= NULL
;
1231 st_CompressedTexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1232 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1233 GLsizei width
, GLint height
, GLint depth
,
1235 GLsizei imageSize
, const GLvoid
*data
,
1236 struct gl_texture_object
*texObj
,
1237 struct gl_texture_image
*texImage
)
1245 * Do a CopyTexSubImage operation using a read transfer from the source,
1246 * a write transfer to the destination and get_tile()/put_tile() to access
1247 * the pixels/texels.
1249 * Note: srcY=0=TOP of renderbuffer
1252 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1253 struct st_renderbuffer
*strb
,
1254 struct st_texture_image
*stImage
,
1256 GLint destX
, GLint destY
, GLint destZ
,
1257 GLint srcX
, GLint srcY
,
1258 GLsizei width
, GLsizei height
)
1260 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1261 struct pipe_screen
*screen
= pipe
->screen
;
1262 struct pipe_transfer
*src_trans
;
1264 enum pipe_transfer_usage transfer_usage
;
1266 if (ST_DEBUG
& DEBUG_FALLBACK
)
1267 debug_printf("%s: fallback processing\n", __FUNCTION__
);
1269 assert(width
<= MAX_WIDTH
);
1271 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1272 srcY
= strb
->Base
.Height
- srcY
- height
;
1275 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1282 if ((baseFormat
== GL_DEPTH_COMPONENT
||
1283 baseFormat
== GL_DEPTH_STENCIL
) &&
1284 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1285 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1287 transfer_usage
= PIPE_TRANSFER_WRITE
;
1289 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1292 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, transfer_usage
,
1293 destX
, destY
, width
, height
);
1295 if (baseFormat
== GL_DEPTH_COMPONENT
||
1296 baseFormat
== GL_DEPTH_STENCIL
) {
1297 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1298 ctx
->Pixel
.DepthBias
!= 0.0F
);
1301 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1302 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1311 /* To avoid a large temp memory allocation, do copy row by row */
1312 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1313 uint data
[MAX_WIDTH
];
1314 pipe_get_tile_z(src_trans
, 0, srcY
, width
, 1, data
);
1316 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1318 pipe_put_tile_z(stImage
->transfer
, 0, row
, width
, 1, data
);
1324 (GLfloat
*) _mesa_malloc(width
* height
* 4 * sizeof(GLfloat
));
1326 if (tempSrc
&& texDest
) {
1327 const GLint dims
= 2;
1328 const GLint dstRowStride
= stImage
->transfer
->stride
;
1329 struct gl_texture_image
*texImage
= &stImage
->base
;
1330 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1332 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1333 unpack
.Invert
= GL_TRUE
;
1336 /* get float/RGBA image from framebuffer */
1337 /* XXX this usually involves a lot of int/float conversion.
1338 * try to avoid that someday.
1340 pipe_get_tile_rgba(src_trans
, 0, 0, width
, height
, tempSrc
);
1342 /* Store into texture memory.
1343 * Note that this does some special things such as pixel transfer
1344 * ops and format conversion. In particular, if the dest tex format
1345 * is actually RGBA but the user created the texture as GL_RGB we
1346 * need to fill-in/override the alpha channel with 1.0.
1348 _mesa_texstore(ctx
, dims
,
1349 texImage
->_BaseFormat
,
1350 texImage
->TexFormat
,
1354 texImage
->ImageOffsets
,
1356 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1360 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1364 _mesa_free(tempSrc
);
1367 st_texture_image_unmap(ctx
->st
, stImage
);
1368 screen
->tex_transfer_destroy(src_trans
);
1374 * If the format of the src renderbuffer and the format of the dest
1375 * texture are compatible (in terms of blitting), return a TGSI writemask
1376 * to be used during the blit.
1377 * If the src/dest are incompatible, return 0.
1380 compatible_src_dst_formats(GLcontext
*ctx
,
1381 const struct gl_renderbuffer
*src
,
1382 const struct gl_texture_image
*dst
)
1384 /* Get logical base formats for the src and dest.
1385 * That is, use the user-requested formats and not the actual, device-
1387 * For example, the user may have requested an A8 texture but the
1388 * driver may actually be using an RGBA texture format. When we
1389 * copy/blit to that texture, we only want to copy the Alpha channel
1390 * and not the RGB channels.
1392 * Similarly, when the src FBO was created an RGB format may have been
1393 * requested but the driver actually chose an RGBA format. In that case,
1394 * we don't want to copy the undefined Alpha channel to the dest texture
1395 * (it should be 1.0).
1397 const GLenum srcFormat
= _mesa_base_fbo_format(ctx
, src
->InternalFormat
);
1398 const GLenum dstFormat
= _mesa_base_tex_format(ctx
, dst
->InternalFormat
);
1401 * XXX when we have red-only and red/green renderbuffers we'll need
1402 * to add more cases here (or implement a general-purpose routine that
1403 * queries the existance of the R,G,B,A channels in the src and dest).
1405 if (srcFormat
== dstFormat
) {
1406 /* This is the same as matching_base_formats, which should
1407 * always pass, as it did previously.
1409 return TGSI_WRITEMASK_XYZW
;
1411 else if (srcFormat
== GL_RGB
&& dstFormat
== GL_RGBA
) {
1412 /* Make sure that A in the dest is 1. The actual src format
1413 * may be RGBA and have undefined A values.
1415 return TGSI_WRITEMASK_XYZ
;
1417 else if (srcFormat
== GL_RGBA
&& dstFormat
== GL_RGB
) {
1418 /* Make sure that A in the dest is 1. The actual dst format
1419 * may be RGBA and will need A=1 to provide proper alpha values
1420 * when sampled later.
1422 return TGSI_WRITEMASK_XYZ
;
1425 if (ST_DEBUG
& DEBUG_FALLBACK
)
1426 debug_printf("%s failed for src %s, dst %s\n",
1428 _mesa_lookup_enum_by_nr(srcFormat
),
1429 _mesa_lookup_enum_by_nr(dstFormat
));
1440 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1441 * Note that the region to copy has already been clipped so we know we
1442 * won't read from outside the source renderbuffer's bounds.
1444 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1447 st_copy_texsubimage(GLcontext
*ctx
,
1448 GLenum target
, GLint level
,
1449 GLint destX
, GLint destY
, GLint destZ
,
1450 GLint srcX
, GLint srcY
,
1451 GLsizei width
, GLsizei height
)
1453 struct gl_texture_unit
*texUnit
=
1454 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1455 struct gl_texture_object
*texObj
=
1456 _mesa_select_tex_object(ctx
, texUnit
, target
);
1457 struct gl_texture_image
*texImage
=
1458 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1459 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1460 const GLenum texBaseFormat
= texImage
->_BaseFormat
;
1461 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1462 struct st_renderbuffer
*strb
;
1463 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1464 struct pipe_screen
*screen
= pipe
->screen
;
1465 enum pipe_format dest_format
, src_format
;
1466 GLboolean use_fallback
= GL_TRUE
;
1467 GLboolean matching_base_formats
;
1468 GLuint format_writemask
;
1469 struct pipe_surface
*dest_surface
= NULL
;
1470 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1472 /* any rendering in progress must flushed before we grab the fb image */
1473 st_flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
1475 /* make sure finalize_textures has been called?
1477 if (0) st_validate_state(ctx
->st
);
1479 /* determine if copying depth or color data */
1480 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1481 texBaseFormat
== GL_DEPTH_STENCIL
) {
1482 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1485 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1486 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1489 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1490 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1518 if (width
< 0 || height
< 0)
1523 assert(strb
->surface
);
1524 assert(stImage
->pt
);
1526 src_format
= strb
->surface
->format
;
1527 dest_format
= stImage
->pt
->format
;
1530 * Determine if the src framebuffer and dest texture have the same
1531 * base format. We need this to detect a case such as the framebuffer
1532 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1533 * texture format stores RGBA we need to set A=1 (overriding the
1534 * framebuffer's alpha values). We can't do that with the blit or
1535 * textured-quad paths.
1537 matching_base_formats
=
1538 (_mesa_get_format_base_format(strb
->Base
.Format
) ==
1539 _mesa_get_format_base_format(texImage
->TexFormat
));
1540 format_writemask
= compatible_src_dst_formats(ctx
, &strb
->Base
, texImage
);
1542 if (ctx
->_ImageTransferState
== 0x0) {
1544 if (pipe
->surface_copy
&&
1545 matching_base_formats
&&
1546 src_format
== dest_format
&&
1549 /* use surface_copy() / blit */
1551 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1552 stImage
->face
, stImage
->level
,
1554 PIPE_BUFFER_USAGE_GPU_WRITE
);
1556 /* for surface_copy(), y=0=top, always */
1557 pipe
->surface_copy(pipe
,
1566 use_fallback
= GL_FALSE
;
1568 else if (format_writemask
&&
1569 texBaseFormat
!= GL_DEPTH_COMPONENT
&&
1570 texBaseFormat
!= GL_DEPTH_STENCIL
&&
1571 screen
->is_format_supported(screen
, src_format
,
1573 PIPE_TEXTURE_USAGE_SAMPLER
,
1575 screen
->is_format_supported(screen
, dest_format
,
1577 PIPE_TEXTURE_USAGE_RENDER_TARGET
,
1579 /* draw textured quad to do the copy */
1582 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1583 stImage
->face
, stImage
->level
,
1585 PIPE_BUFFER_USAGE_GPU_WRITE
);
1588 srcY1
= strb
->Base
.Height
- srcY
- height
;
1589 srcY0
= srcY1
+ height
;
1593 srcY1
= srcY0
+ height
;
1595 util_blit_pixels_writemask(ctx
->st
->blit
,
1598 srcX
+ width
, srcY1
,
1601 destX
+ width
, destY
+ height
,
1602 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1604 use_fallback
= GL_FALSE
;
1608 pipe_surface_reference(&dest_surface
, NULL
);
1612 /* software fallback */
1613 fallback_copy_texsubimage(ctx
, target
, level
,
1614 strb
, stImage
, texBaseFormat
,
1615 destX
, destY
, destZ
,
1616 srcX
, srcY
, width
, height
);
1623 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1624 GLenum internalFormat
,
1625 GLint x
, GLint y
, GLsizei width
, GLint border
)
1627 struct gl_texture_unit
*texUnit
=
1628 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1629 struct gl_texture_object
*texObj
=
1630 _mesa_select_tex_object(ctx
, texUnit
, target
);
1631 struct gl_texture_image
*texImage
=
1632 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1634 /* Setup or redefine the texture object, texture and texture
1635 * image. Don't populate yet.
1637 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1639 GL_RGBA
, CHAN_TYPE
, NULL
,
1640 &ctx
->DefaultPacking
, texObj
, texImage
);
1642 st_copy_texsubimage(ctx
, target
, level
,
1643 0, 0, 0, /* destX,Y,Z */
1644 x
, y
, width
, 1); /* src X, Y, size */
1649 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1650 GLenum internalFormat
,
1651 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1654 struct gl_texture_unit
*texUnit
=
1655 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1656 struct gl_texture_object
*texObj
=
1657 _mesa_select_tex_object(ctx
, texUnit
, target
);
1658 struct gl_texture_image
*texImage
=
1659 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1661 /* Setup or redefine the texture object, texture and texture
1662 * image. Don't populate yet.
1664 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1665 width
, height
, border
,
1666 GL_RGBA
, CHAN_TYPE
, NULL
,
1667 &ctx
->DefaultPacking
, texObj
, texImage
);
1669 st_copy_texsubimage(ctx
, target
, level
,
1670 0, 0, 0, /* destX,Y,Z */
1671 x
, y
, width
, height
); /* src X, Y, size */
1676 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1677 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1679 const GLint yoffset
= 0, zoffset
= 0;
1680 const GLsizei height
= 1;
1681 st_copy_texsubimage(ctx
, target
, level
,
1682 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1683 x
, y
, width
, height
); /* src X, Y, size */
1688 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1689 GLint xoffset
, GLint yoffset
,
1690 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1692 const GLint zoffset
= 0;
1693 st_copy_texsubimage(ctx
, target
, level
,
1694 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1695 x
, y
, width
, height
); /* src X, Y, size */
1700 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1701 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1702 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1704 st_copy_texsubimage(ctx
, target
, level
,
1705 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1706 x
, y
, width
, height
); /* src X, Y, size */
1711 copy_image_data_to_texture(struct st_context
*st
,
1712 struct st_texture_object
*stObj
,
1714 struct st_texture_image
*stImage
)
1717 /* Copy potentially with the blitter:
1719 st_texture_image_copy(st
->pipe
,
1720 stObj
->pt
, dstLevel
, /* dest texture, level */
1721 stImage
->pt
, /* src texture */
1725 pipe_texture_reference(&stImage
->pt
, NULL
);
1727 else if (stImage
->base
.Data
) {
1728 /* More straightforward upload.
1731 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1732 PIPE_TRANSFER_WRITE
);
1735 st_texture_image_data(st
,
1740 stImage
->base
.RowStride
*
1741 util_format_get_blocksize(stObj
->pt
->format
),
1742 stImage
->base
.RowStride
*
1743 stImage
->base
.Height
*
1744 util_format_get_blocksize(stObj
->pt
->format
));
1745 _mesa_align_free(stImage
->base
.Data
);
1746 stImage
->base
.Data
= NULL
;
1749 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
1754 * Called during state validation. When this function is finished,
1755 * the texture object should be ready for rendering.
1756 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1759 st_finalize_texture(GLcontext
*ctx
,
1760 struct pipe_context
*pipe
,
1761 struct gl_texture_object
*tObj
,
1762 GLboolean
*needFlush
)
1764 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1765 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1766 GLuint blockSize
, face
;
1767 struct st_texture_image
*firstImage
;
1769 *needFlush
= GL_FALSE
;
1771 if (stObj
->base
._Complete
) {
1772 /* The texture is complete and we know exactly how many mipmap levels
1773 * are present/needed. This is conditional because we may be called
1774 * from the st_generate_mipmap() function when the texture object is
1775 * incomplete. In that case, we'll have set stObj->lastLevel before
1778 if (stObj
->base
.MinFilter
== GL_LINEAR
||
1779 stObj
->base
.MinFilter
== GL_NEAREST
)
1780 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1782 stObj
->lastLevel
= stObj
->base
._MaxLevel
- stObj
->base
.BaseLevel
;
1785 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1787 /* If both firstImage and stObj point to a texture which can contain
1788 * all active images, favour firstImage. Note that because of the
1789 * completeness requirement, we know that the image dimensions
1792 if (firstImage
->pt
&&
1793 firstImage
->pt
!= stObj
->pt
&&
1794 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1795 pipe_texture_reference(&stObj
->pt
, firstImage
->pt
);
1798 /* bytes per pixel block (blocks are usually 1x1) */
1799 blockSize
= _mesa_get_format_bytes(firstImage
->base
.TexFormat
);
1801 /* If we already have a gallium texture, check that it matches the texture
1802 * object's format, target, size, num_levels, etc.
1805 const enum pipe_format fmt
=
1806 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1807 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1808 stObj
->pt
->format
!= fmt
||
1809 stObj
->pt
->last_level
< stObj
->lastLevel
||
1810 stObj
->pt
->width0
!= firstImage
->base
.Width2
||
1811 stObj
->pt
->height0
!= firstImage
->base
.Height2
||
1812 stObj
->pt
->depth0
!= firstImage
->base
.Depth2
)
1814 pipe_texture_reference(&stObj
->pt
, NULL
);
1815 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1819 /* May need to create a new gallium texture:
1822 const enum pipe_format fmt
=
1823 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1824 GLuint usage
= default_usage(fmt
);
1826 stObj
->pt
= st_texture_create(ctx
->st
,
1827 gl_target_to_pipe(stObj
->base
.Target
),
1830 firstImage
->base
.Width2
,
1831 firstImage
->base
.Height2
,
1832 firstImage
->base
.Depth2
,
1836 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1841 /* Pull in any images not in the object's texture:
1843 for (face
= 0; face
< nr_faces
; face
++) {
1845 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1846 struct st_texture_image
*stImage
=
1847 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1849 /* Need to import images in main memory or held in other textures.
1851 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1852 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1853 *needFlush
= GL_TRUE
;
1863 * Returns pointer to a default/dummy texture.
1864 * This is typically used when the current shader has tex/sample instructions
1865 * but the user has not provided a (any) texture(s).
1867 struct gl_texture_object
*
1868 st_get_default_texture(struct st_context
*st
)
1870 if (!st
->default_texture
) {
1871 static const GLenum target
= GL_TEXTURE_2D
;
1872 GLubyte pixels
[16][16][4];
1873 struct gl_texture_object
*texObj
;
1874 struct gl_texture_image
*texImg
;
1877 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1878 * when attempting to sample incomplete textures.
1880 for (i
= 0; i
< 16; i
++) {
1881 for (j
= 0; j
< 16; j
++) {
1882 pixels
[i
][j
][0] = 0;
1883 pixels
[i
][j
][1] = 0;
1884 pixels
[i
][j
][2] = 0;
1885 pixels
[i
][j
][3] = 255;
1889 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1891 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1893 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1894 16, 16, 1, 0, /* w, h, d, border */
1897 st_TexImage(st
->ctx
, 2, target
,
1898 0, GL_RGBA
, /* level, intformat */
1899 16, 16, 1, 0, /* w, h, d, border */
1900 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1901 &st
->ctx
->DefaultPacking
,
1905 texObj
->MinFilter
= GL_NEAREST
;
1906 texObj
->MagFilter
= GL_NEAREST
;
1907 texObj
->_Complete
= GL_TRUE
;
1909 st
->default_texture
= texObj
;
1911 return st
->default_texture
;
1916 st_init_texture_functions(struct dd_function_table
*functions
)
1918 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1919 functions
->TexImage1D
= st_TexImage1D
;
1920 functions
->TexImage2D
= st_TexImage2D
;
1921 functions
->TexImage3D
= st_TexImage3D
;
1922 functions
->TexSubImage1D
= st_TexSubImage1D
;
1923 functions
->TexSubImage2D
= st_TexSubImage2D
;
1924 functions
->TexSubImage3D
= st_TexSubImage3D
;
1925 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1926 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1927 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1928 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1929 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1930 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1931 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1932 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1933 functions
->GenerateMipmap
= st_generate_mipmap
;
1935 functions
->GetTexImage
= st_GetTexImage
;
1937 /* compressed texture functions */
1938 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1939 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1941 functions
->NewTextureObject
= st_NewTextureObject
;
1942 functions
->NewTextureImage
= st_NewTextureImage
;
1943 functions
->DeleteTexture
= st_DeleteTextureObject
;
1944 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1945 functions
->UpdateTexturePalette
= 0;
1947 functions
->TextureMemCpy
= do_memcpy
;
1949 /* XXX Temporary until we can query pipe's texture sizes */
1950 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;