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_texture.h"
53 #include "state_tracker/st_gen_mipmap.h"
54 #include "state_tracker/st_inlines.h"
55 #include "state_tracker/st_atom.h"
57 #include "pipe/p_context.h"
58 #include "pipe/p_defines.h"
59 #include "util/u_inlines.h"
60 #include "pipe/p_shader_tokens.h"
61 #include "util/u_tile.h"
62 #include "util/u_blit.h"
63 #include "util/u_format.h"
64 #include "util/u_surface.h"
65 #include "util/u_sampler.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_resource_reference(&stObj
->pt
, NULL
);
126 if (stObj
->sampler_view
) {
127 if (stObj
->sampler_view
->context
!= ctx
->st
->pipe
) {
128 /* Take "ownership" of this texture sampler view by setting
129 * its context pointer to this context. This avoids potential
130 * crashes when the texture object is shared among contexts
131 * and the original/owner context has already been destroyed.
133 stObj
->sampler_view
->context
= ctx
->st
->pipe
;
135 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
137 _mesa_delete_texture_object(ctx
, texObj
);
141 /** called via ctx->Driver.FreeTexImageData() */
143 st_FreeTextureImageData(GLcontext
* ctx
, struct gl_texture_image
*texImage
)
145 struct st_texture_image
*stImage
= st_texture_image(texImage
);
147 DBG("%s\n", __FUNCTION__
);
150 pipe_resource_reference(&stImage
->pt
, NULL
);
153 if (texImage
->Data
) {
154 _mesa_align_free(texImage
->Data
);
155 texImage
->Data
= NULL
;
161 * From linux kernel i386 header files, copes with odd sizes better
162 * than COPY_DWORDS would:
163 * XXX Put this in src/mesa/main/imports.h ???
165 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
167 __memcpy(void *to
, const void *from
, size_t n
)
170 __asm__
__volatile__("rep ; movsl\n\t"
174 "1:\ttestb $1,%b4\n\t"
176 "movsb\n" "2:":"=&c"(d0
), "=&D"(d1
), "=&S"(d2
)
177 :"0"(n
/ 4), "q"(n
), "1"((long) to
), "2"((long) from
)
182 #define __memcpy(a,b,c) memcpy(a,b,c)
187 * The system memcpy (at least on ubuntu 5.10) has problems copying
188 * to agp (writecombined) memory from a source which isn't 64-byte
189 * aligned - there is a 4x performance falloff.
191 * The x86 __memcpy is immune to this but is slightly slower
192 * (10%-ish) than the system memcpy.
194 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
195 * isn't much faster than x86_memcpy for agp copies.
197 * TODO: switch dynamically.
200 do_memcpy(void *dest
, const void *src
, size_t n
)
202 if ((((unsigned long) src
) & 63) || (((unsigned long) dest
) & 63)) {
203 return __memcpy(dest
, src
, n
);
206 return memcpy(dest
, src
, n
);
211 * Return default texture usage bitmask for the given texture format.
214 default_usage(enum pipe_format fmt
)
216 GLuint usage
= PIPE_BIND_SAMPLER_VIEW
;
217 if (util_format_is_depth_or_stencil(fmt
))
218 usage
|= PIPE_BIND_DEPTH_STENCIL
;
220 usage
|= PIPE_BIND_RENDER_TARGET
;
226 * Allocate a pipe_resource object for the given st_texture_object using
227 * the given st_texture_image to guess the mipmap size/levels.
230 * Otherwise, store it in memory if (Border != 0) or (any dimension ==
233 * Otherwise, if max_level >= level >= min_level, create texture with
234 * space for images from min_level down to max_level.
236 * Otherwise, create texture with space for images from (level 0)..(1x1).
237 * Consider pruning this texture at a validation if the saving is worth it.
240 guess_and_alloc_texture(struct st_context
*st
,
241 struct st_texture_object
*stObj
,
242 const struct st_texture_image
*stImage
)
246 GLuint width
= stImage
->base
.Width2
; /* size w/out border */
247 GLuint height
= stImage
->base
.Height2
;
248 GLuint depth
= stImage
->base
.Depth2
;
250 enum pipe_format fmt
;
252 DBG("%s\n", __FUNCTION__
);
257 (GLint
) stImage
->level
> stObj
->base
.BaseLevel
&&
258 (stImage
->base
.Width
== 1 ||
259 (stObj
->base
.Target
!= GL_TEXTURE_1D
&&
260 stImage
->base
.Height
== 1) ||
261 (stObj
->base
.Target
== GL_TEXTURE_3D
&&
262 stImage
->base
.Depth
== 1)))
265 /* If this image disrespects BaseLevel, allocate from level zero.
266 * Usually BaseLevel == 0, so it's unlikely to happen.
268 if ((GLint
) stImage
->level
< stObj
->base
.BaseLevel
)
271 firstLevel
= stObj
->base
.BaseLevel
;
274 /* Figure out image dimensions at start level.
276 for (i
= stImage
->level
; i
> firstLevel
; i
--) {
285 if (width
== 0 || height
== 0 || depth
== 0) {
286 /* no texture needed */
290 /* Guess a reasonable value for lastLevel. This is probably going
291 * to be wrong fairly often and might mean that we have to look at
292 * resizable buffers, or require that buffers implement lazy
293 * pagetable arrangements.
295 if ((stObj
->base
.MinFilter
== GL_NEAREST
||
296 stObj
->base
.MinFilter
== GL_LINEAR
||
297 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
298 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
299 !stObj
->base
.GenerateMipmap
&&
300 stImage
->level
== firstLevel
) {
301 /* only alloc space for a single mipmap level */
302 lastLevel
= firstLevel
;
305 /* alloc space for a full mipmap */
306 GLuint l2width
= util_logbase2(width
);
307 GLuint l2height
= util_logbase2(height
);
308 GLuint l2depth
= util_logbase2(depth
);
309 lastLevel
= firstLevel
+ MAX2(MAX2(l2width
, l2height
), l2depth
);
312 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
);
314 usage
= default_usage(fmt
);
316 stObj
->pt
= st_texture_create(st
,
317 gl_target_to_pipe(stObj
->base
.Target
),
325 stObj
->pipe
= st
->pipe
;
327 DBG("%s - success\n", __FUNCTION__
);
332 * Adjust pixel unpack params and image dimensions to strip off the
334 * Gallium doesn't support texture borders. They've seldem been used
335 * and seldom been implemented correctly anyway.
336 * \param unpackNew returns the new pixel unpack parameters
339 strip_texture_border(GLint border
,
340 GLint
*width
, GLint
*height
, GLint
*depth
,
341 const struct gl_pixelstore_attrib
*unpack
,
342 struct gl_pixelstore_attrib
*unpackNew
)
344 assert(border
> 0); /* sanity check */
346 *unpackNew
= *unpack
;
348 if (unpackNew
->RowLength
== 0)
349 unpackNew
->RowLength
= *width
;
351 if (depth
&& unpackNew
->ImageHeight
== 0)
352 unpackNew
->ImageHeight
= *height
;
354 unpackNew
->SkipPixels
+= border
;
356 unpackNew
->SkipRows
+= border
;
358 unpackNew
->SkipImages
+= border
;
361 *width
= *width
- 2 * border
;
362 if (height
&& *height
>= 3)
363 *height
= *height
- 2 * border
;
364 if (depth
&& *depth
>= 3)
365 *depth
= *depth
- 2 * border
;
370 * Try to do texture compression via rendering. If the Gallium driver
371 * can render into a compressed surface this will allow us to do texture
373 * \return GL_TRUE for success, GL_FALSE for failure
376 compress_with_blit(GLcontext
* ctx
,
377 GLenum target
, GLint level
,
378 GLint xoffset
, GLint yoffset
, GLint zoffset
,
379 GLint width
, GLint height
, GLint depth
,
380 GLenum format
, GLenum type
, const void *pixels
,
381 const struct gl_pixelstore_attrib
*unpack
,
382 struct gl_texture_image
*texImage
)
384 const GLuint dstImageOffsets
[1] = {0};
385 struct st_texture_image
*stImage
= st_texture_image(texImage
);
386 struct pipe_context
*pipe
= ctx
->st
->pipe
;
387 struct pipe_screen
*screen
= pipe
->screen
;
388 gl_format mesa_format
;
389 struct pipe_resource templ
;
390 struct pipe_resource
*src_tex
;
391 struct pipe_sampler_view view_templ
;
392 struct pipe_sampler_view
*src_view
;
393 struct pipe_surface
*dst_surface
;
394 struct pipe_transfer
*tex_xfer
;
398 /* XXX: Can this happen? Should we assert? */
402 /* get destination surface (in the compressed texture) */
403 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
404 stImage
->face
, stImage
->level
, 0,
405 PIPE_BIND_BLIT_DESTINATION
);
407 /* can't render into this format (or other problem) */
411 /* Choose format for the temporary RGBA texture image.
413 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
418 /* Create the temporary source texture
420 memset(&templ
, 0, sizeof(templ
));
421 templ
.target
= PIPE_TEXTURE_2D
;
422 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
);
423 templ
.width0
= width
;
424 templ
.height0
= height
;
426 templ
.last_level
= 0;
427 templ
._usage
= PIPE_USAGE_DEFAULT
;
428 templ
.bind
= PIPE_BIND_SAMPLER_VIEW
;
429 src_tex
= screen
->resource_create(screen
, &templ
);
434 /* Put user's tex data into the temporary texture
436 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
437 0, 0, 0, /* face, level are zero */
439 0, 0, width
, height
); /* x, y, w, h */
440 map
= pipe_transfer_map(pipe
, tex_xfer
);
442 _mesa_texstore(ctx
, 2, GL_RGBA
, mesa_format
,
444 0, 0, 0, /* dest x/y/z offset */
445 tex_xfer
->stride
, /* dest row stride (bytes) */
446 dstImageOffsets
, /* image offsets (for 3D only) */
447 width
, height
, 1, /* size */
448 format
, type
, /* source format/type */
449 pixels
, /* source data */
450 unpack
); /* source data packing */
452 pipe_transfer_unmap(pipe
, tex_xfer
);
453 pipe
->transfer_destroy(pipe
, tex_xfer
);
455 /* Create temporary sampler view */
456 u_sampler_view_default_template(&view_templ
,
459 src_view
= pipe
->create_sampler_view(pipe
, src_tex
, &view_templ
);
462 /* copy / compress image */
463 util_blit_pixels_tex(ctx
->st
->blit
,
464 src_view
, /* sampler view (src) */
465 0, 0, /* src x0, y0 */
466 width
, height
, /* src x1, y1 */
467 dst_surface
, /* pipe_surface (dst) */
468 xoffset
, yoffset
, /* dst x0, y0 */
469 xoffset
+ width
, /* dst x1 */
470 yoffset
+ height
, /* dst y1 */
472 PIPE_TEX_MIPFILTER_NEAREST
);
474 pipe_surface_reference(&dst_surface
, NULL
);
475 pipe_resource_reference(&src_tex
, NULL
);
476 pipe_sampler_view_reference(&src_view
, NULL
);
483 * Do glTexImage1/2/3D().
486 st_TexImage(GLcontext
* ctx
,
488 GLenum target
, GLint level
,
489 GLint internalFormat
,
490 GLint width
, GLint height
, GLint depth
,
492 GLenum format
, GLenum type
, const void *pixels
,
493 const struct gl_pixelstore_attrib
*unpack
,
494 struct gl_texture_object
*texObj
,
495 struct gl_texture_image
*texImage
,
496 GLsizei imageSize
, GLboolean compressed_src
)
498 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
499 struct st_texture_object
*stObj
= st_texture_object(texObj
);
500 struct st_texture_image
*stImage
= st_texture_image(texImage
);
501 GLint postConvWidth
, postConvHeight
;
502 GLint texelBytes
, sizeInBytes
;
503 GLuint dstRowStride
= 0;
504 struct gl_pixelstore_attrib unpackNB
;
505 enum pipe_transfer_usage transfer_usage
= 0;
507 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
508 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
510 /* switch to "normal" */
511 if (stObj
->surface_based
) {
512 _mesa_clear_texture_object(ctx
, texObj
);
513 stObj
->surface_based
= GL_FALSE
;
516 /* gallium does not support texture borders, strip it off */
518 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
520 texImage
->Width
= width
;
521 texImage
->Height
= height
;
522 texImage
->Depth
= depth
;
523 texImage
->Border
= 0;
527 postConvWidth
= width
;
528 postConvHeight
= height
;
530 stImage
->face
= _mesa_tex_target_to_face(target
);
531 stImage
->level
= level
;
534 if (ctx
->_ImageTransferState
& IMAGE_CONVOLUTION_BIT
) {
535 _mesa_adjust_image_for_convolution(ctx
, dims
, &postConvWidth
,
540 _mesa_set_fetch_functions(texImage
, dims
);
542 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
543 /* must be a compressed format */
547 texelBytes
= _mesa_get_format_bytes(texImage
->TexFormat
);
549 /* Minimum pitch of 32 bytes */
550 if (postConvWidth
* texelBytes
< 32) {
551 postConvWidth
= 32 / texelBytes
;
552 texImage
->RowStride
= postConvWidth
;
555 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
556 /*assert(texImage->RowStride == postConvWidth);*/
559 /* Release the reference to a potentially orphaned buffer.
560 * Release any old malloced memory.
563 pipe_resource_reference(&stImage
->pt
, NULL
);
564 assert(!texImage
->Data
);
566 else if (texImage
->Data
) {
567 _mesa_align_free(texImage
->Data
);
571 * See if the new image is somehow incompatible with the existing
572 * mipmap. If so, free the old mipmap.
575 if (stObj
->teximage_realloc
||
576 level
> (GLint
) stObj
->pt
->last_level
||
577 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
578 stImage
->face
, stImage
->level
)) {
580 pipe_resource_reference(&stObj
->pt
, NULL
);
582 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
583 stObj
->teximage_realloc
= FALSE
;
587 if (width
== 0 || height
== 0 || depth
== 0) {
588 /* stop after freeing old image */
593 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
595 /* Probably out of memory.
596 * Try flushing any pending rendering, then retry.
599 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
601 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
607 assert(!stImage
->pt
);
610 st_texture_match_image(stObj
->pt
, &stImage
->base
,
611 stImage
->face
, stImage
->level
)) {
613 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
618 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
620 /* st_CopyTexImage calls this function with pixels == NULL, with
621 * the expectation that the texture will be set up but nothing
622 * more will be done. This is where those calls return:
624 if (compressed_src
) {
625 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
627 "glCompressedTexImage");
630 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
632 pixels
, unpack
, "glTexImage");
635 /* Note: we can't check for pixels==NULL until after we've allocated
636 * memory for the texture.
639 /* See if we can do texture compression with a blit/render.
641 if (!compressed_src
&&
643 _mesa_is_format_compressed(texImage
->TexFormat
) &&
644 screen
->is_format_supported(screen
,
647 PIPE_BIND_RENDER_TARGET
, 0)) {
651 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
652 format
, type
, pixels
, unpack
, texImage
)) {
658 if (format
== GL_DEPTH_COMPONENT
&&
659 util_format_is_depth_and_stencil(stImage
->pt
->format
))
660 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
662 transfer_usage
= PIPE_TRANSFER_WRITE
;
664 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
665 transfer_usage
, 0, 0,
667 stImage
->base
.Height
);
668 if(stImage
->transfer
)
669 dstRowStride
= stImage
->transfer
->stride
;
672 /* Allocate regular memory and store the image there temporarily. */
673 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
674 sizeInBytes
= _mesa_format_image_size(texImage
->TexFormat
,
678 dstRowStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
682 dstRowStride
= postConvWidth
* texelBytes
;
683 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
686 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
689 if (!texImage
->Data
) {
690 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
697 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
698 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
700 /* Copy data. Would like to know when it's ok for us to eg. use
701 * the blitter to copy. Or, use the hardware to do the format
702 * conversion and copy:
704 if (compressed_src
) {
705 const GLuint srcImageStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
706 if(dstRowStride
== srcImageStride
)
707 memcpy(texImage
->Data
, pixels
, imageSize
);
710 char *dst
= texImage
->Data
;
711 const char *src
= pixels
;
712 GLuint i
, bw
, bh
, lines
;
713 _mesa_get_format_block_size(texImage
->TexFormat
, &bw
, &bh
);
714 lines
= (height
+ bh
- 1) / bh
;
716 for(i
= 0; i
< lines
; ++i
)
718 memcpy(dst
, src
, srcImageStride
);
720 src
+= srcImageStride
;
725 const GLuint srcImageStride
=
726 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
728 const GLubyte
*src
= (const GLubyte
*) pixels
;
730 for (i
= 0; i
< depth
; i
++) {
731 if (!_mesa_texstore(ctx
, dims
,
732 texImage
->_BaseFormat
,
735 0, 0, 0, /* dstX/Y/Zoffset */
737 texImage
->ImageOffsets
,
739 format
, type
, src
, unpack
)) {
740 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
743 if (stImage
->pt
&& i
+ 1 < depth
) {
744 /* unmap this slice */
745 st_texture_image_unmap(ctx
->st
, stImage
);
746 /* map next slice of 3D texture */
747 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
748 transfer_usage
, 0, 0,
750 stImage
->base
.Height
);
751 src
+= srcImageStride
;
757 _mesa_unmap_teximage_pbo(ctx
, unpack
);
759 if (stImage
->pt
&& texImage
->Data
) {
760 st_texture_image_unmap(ctx
->st
, stImage
);
761 texImage
->Data
= NULL
;
767 st_TexImage3D(GLcontext
* ctx
,
768 GLenum target
, GLint level
,
769 GLint internalFormat
,
770 GLint width
, GLint height
, GLint depth
,
772 GLenum format
, GLenum type
, const void *pixels
,
773 const struct gl_pixelstore_attrib
*unpack
,
774 struct gl_texture_object
*texObj
,
775 struct gl_texture_image
*texImage
)
777 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
778 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
784 st_TexImage2D(GLcontext
* ctx
,
785 GLenum target
, GLint level
,
786 GLint internalFormat
,
787 GLint width
, GLint height
, GLint border
,
788 GLenum format
, GLenum type
, const void *pixels
,
789 const struct gl_pixelstore_attrib
*unpack
,
790 struct gl_texture_object
*texObj
,
791 struct gl_texture_image
*texImage
)
793 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
794 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
799 st_TexImage1D(GLcontext
* ctx
,
800 GLenum target
, GLint level
,
801 GLint internalFormat
,
802 GLint width
, GLint border
,
803 GLenum format
, GLenum type
, const void *pixels
,
804 const struct gl_pixelstore_attrib
*unpack
,
805 struct gl_texture_object
*texObj
,
806 struct gl_texture_image
*texImage
)
808 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
809 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
814 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
815 GLint internalFormat
,
816 GLint width
, GLint height
, GLint border
,
817 GLsizei imageSize
, const GLvoid
*data
,
818 struct gl_texture_object
*texObj
,
819 struct gl_texture_image
*texImage
)
821 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
822 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
828 * glGetTexImage() helper: decompress a compressed texture by rendering
829 * a textured quad. Store the results in the user's buffer.
832 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
833 GLenum format
, GLenum type
, GLvoid
*pixels
,
834 struct gl_texture_object
*texObj
,
835 struct gl_texture_image
*texImage
)
837 struct pipe_context
*pipe
= ctx
->st
->pipe
;
838 struct pipe_screen
*screen
= pipe
->screen
;
839 struct st_texture_image
*stImage
= st_texture_image(texImage
);
840 struct st_texture_object
*stObj
= st_texture_object(texObj
);
841 struct pipe_sampler_view
*src_view
= st_get_stobj_sampler_view(stObj
);
842 const GLuint width
= texImage
->Width
;
843 const GLuint height
= texImage
->Height
;
844 struct pipe_surface
*dst_surface
;
845 struct pipe_resource
*dst_texture
;
846 struct pipe_transfer
*tex_xfer
;
847 unsigned bind
= (PIPE_BIND_BLIT_DESTINATION
|
848 PIPE_BIND_RENDER_TARGET
| /* util_blit may choose to render */
849 PIPE_BIND_TRANSFER_READ
);
851 /* create temp / dest surface */
852 if (!util_create_rgba_surface(screen
, width
, height
, bind
,
853 &dst_texture
, &dst_surface
)) {
854 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
855 "in decompress_with_blit()");
859 /* blit/render/decompress */
860 util_blit_pixels_tex(ctx
->st
->blit
,
861 src_view
, /* pipe_resource (src) */
862 0, 0, /* src x0, y0 */
863 width
, height
, /* src x1, y1 */
864 dst_surface
, /* pipe_surface (dst) */
865 0, 0, /* dst x0, y0 */
866 width
, height
, /* dst x1, y1 */
868 PIPE_TEX_MIPFILTER_NEAREST
);
870 /* map the dst_surface so we can read from it */
871 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
872 dst_texture
, 0, 0, 0,
874 0, 0, width
, height
);
876 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
878 /* copy/pack data into user buffer */
879 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
881 const uint bytesPerRow
= width
* util_format_get_blocksize(stImage
->pt
->format
);
882 ubyte
*map
= pipe_transfer_map(pipe
, tex_xfer
);
884 for (row
= 0; row
< height
; row
++) {
885 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
886 height
, format
, type
, row
, 0);
887 memcpy(dest
, map
, bytesPerRow
);
888 map
+= tex_xfer
->stride
;
890 pipe_transfer_unmap(pipe
, tex_xfer
);
893 /* format translation via floats */
895 for (row
= 0; row
< height
; row
++) {
896 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
897 GLfloat rgba
[4 * MAX_WIDTH
];
898 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
899 height
, format
, type
, row
, 0);
901 if (ST_DEBUG
& DEBUG_FALLBACK
)
902 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
904 /* get float[4] rgba row from surface */
905 pipe_get_tile_rgba(pipe
, tex_xfer
, 0, row
, width
, 1, rgba
);
907 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
908 type
, dest
, &ctx
->Pack
, transferOps
);
912 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
914 pipe
->transfer_destroy(pipe
, tex_xfer
);
916 /* destroy the temp / dest surface */
917 util_destroy_rgba_surface(dst_texture
, dst_surface
);
923 * Need to map texture image into memory before copying image data,
927 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
928 GLenum format
, GLenum type
, GLvoid
* pixels
,
929 struct gl_texture_object
*texObj
,
930 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
932 struct st_texture_image
*stImage
= st_texture_image(texImage
);
933 const GLuint dstImageStride
=
934 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
940 util_format_is_s3tc(stImage
->pt
->format
) &&
942 /* Need to decompress the texture.
943 * We'll do this by rendering a textured quad.
944 * Note that we only expect RGBA formats (no Z/depth formats).
946 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
953 /* Image is stored in hardware format in a buffer managed by the
954 * kernel. Need to explicitly map and unmap it.
956 unsigned face
= _mesa_tex_target_to_face(target
);
958 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
961 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
962 PIPE_TRANSFER_READ
, 0, 0,
964 stImage
->base
.Height
);
965 texImage
->RowStride
= stImage
->transfer
->stride
/ util_format_get_blocksize(stImage
->pt
->format
);
968 /* Otherwise, the image should actually be stored in
969 * texImage->Data. This is pretty confusing for
970 * everybody, I'd much prefer to separate the two functions of
971 * texImage->Data - storage for texture images in main memory
972 * and access (ie mappings) of images. In other words, we'd
973 * create a new texImage->Map field and leave Data simply for
976 assert(texImage
->Data
);
979 depth
= texImage
->Depth
;
982 dest
= (GLubyte
*) pixels
;
984 for (i
= 0; i
< depth
; i
++) {
985 if (compressed_dst
) {
986 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
990 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
994 if (stImage
->pt
&& i
+ 1 < depth
) {
995 /* unmap this slice */
996 st_texture_image_unmap(ctx
->st
, stImage
);
997 /* map next slice of 3D texture */
998 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
999 PIPE_TRANSFER_READ
, 0, 0,
1000 stImage
->base
.Width
,
1001 stImage
->base
.Height
);
1002 dest
+= dstImageStride
;
1006 texImage
->Depth
= depth
;
1010 st_texture_image_unmap(ctx
->st
, stImage
);
1011 texImage
->Data
= NULL
;
1017 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
1018 GLenum format
, GLenum type
, GLvoid
* pixels
,
1019 struct gl_texture_object
*texObj
,
1020 struct gl_texture_image
*texImage
)
1022 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
1028 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
1030 struct gl_texture_object
*texObj
,
1031 struct gl_texture_image
*texImage
)
1033 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1040 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1041 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1042 GLint width
, GLint height
, GLint depth
,
1043 GLenum format
, GLenum type
, const void *pixels
,
1044 const struct gl_pixelstore_attrib
*packing
,
1045 struct gl_texture_object
*texObj
,
1046 struct gl_texture_image
*texImage
)
1048 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1049 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1050 GLuint dstRowStride
;
1051 const GLuint srcImageStride
=
1052 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1055 /* init to silence warning only: */
1056 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1058 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1059 _mesa_lookup_enum_by_nr(target
),
1060 level
, xoffset
, yoffset
, width
, height
);
1063 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1064 type
, pixels
, packing
, "glTexSubImage2D");
1068 /* See if we can do texture compression with a blit/render.
1070 if (!ctx
->Mesa_DXTn
&&
1071 _mesa_is_format_compressed(texImage
->TexFormat
) &&
1072 screen
->is_format_supported(screen
,
1073 stImage
->pt
->format
,
1074 stImage
->pt
->target
,
1075 PIPE_BIND_RENDER_TARGET
, 0)) {
1076 if (compress_with_blit(ctx
, target
, level
,
1077 xoffset
, yoffset
, zoffset
,
1078 width
, height
, depth
,
1079 format
, type
, pixels
, packing
, texImage
)) {
1084 /* Map buffer if necessary. Need to lock to prevent other contexts
1085 * from uploading the buffer under us.
1088 unsigned face
= _mesa_tex_target_to_face(target
);
1090 if (format
== GL_DEPTH_COMPONENT
&&
1091 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1092 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1094 transfer_usage
= PIPE_TRANSFER_WRITE
;
1096 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1098 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1104 if (!texImage
->Data
) {
1105 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1109 src
= (const GLubyte
*) pixels
;
1110 dstRowStride
= stImage
->transfer
->stride
;
1112 for (i
= 0; i
< depth
; i
++) {
1113 if (!_mesa_texstore(ctx
, dims
, texImage
->_BaseFormat
,
1114 texImage
->TexFormat
,
1118 texImage
->ImageOffsets
,
1120 format
, type
, src
, packing
)) {
1121 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1124 if (stImage
->pt
&& i
+ 1 < depth
) {
1125 /* unmap this slice */
1126 st_texture_image_unmap(ctx
->st
, stImage
);
1127 /* map next slice of 3D texture */
1128 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1133 src
+= srcImageStride
;
1138 _mesa_unmap_teximage_pbo(ctx
, packing
);
1140 if (stImage
->pt
&& texImage
->Data
) {
1141 st_texture_image_unmap(ctx
->st
, stImage
);
1142 texImage
->Data
= NULL
;
1149 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1150 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1151 GLsizei width
, GLsizei height
, GLsizei depth
,
1152 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1153 const struct gl_pixelstore_attrib
*packing
,
1154 struct gl_texture_object
*texObj
,
1155 struct gl_texture_image
*texImage
)
1157 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1158 width
, height
, depth
, format
, type
,
1159 pixels
, packing
, texObj
, texImage
);
1164 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1165 GLint xoffset
, GLint yoffset
,
1166 GLsizei width
, GLsizei height
,
1167 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1168 const struct gl_pixelstore_attrib
*packing
,
1169 struct gl_texture_object
*texObj
,
1170 struct gl_texture_image
*texImage
)
1172 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1173 width
, height
, 1, format
, type
,
1174 pixels
, packing
, texObj
, texImage
);
1179 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1180 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1181 const GLvoid
* pixels
,
1182 const struct gl_pixelstore_attrib
*packing
,
1183 struct gl_texture_object
*texObj
,
1184 struct gl_texture_image
*texImage
)
1186 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1187 format
, type
, pixels
, packing
, texObj
, texImage
);
1192 st_CompressedTexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1193 GLint xoffset
, GLsizei width
,
1195 GLsizei imageSize
, const GLvoid
*data
,
1196 struct gl_texture_object
*texObj
,
1197 struct gl_texture_image
*texImage
)
1204 st_CompressedTexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1205 GLint xoffset
, GLint yoffset
,
1206 GLsizei width
, GLint height
,
1208 GLsizei imageSize
, const GLvoid
*data
,
1209 struct gl_texture_object
*texObj
,
1210 struct gl_texture_image
*texImage
)
1212 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1216 enum pipe_format pformat
= stImage
->pt
->format
;
1219 unsigned face
= _mesa_tex_target_to_face(target
);
1221 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1222 PIPE_TRANSFER_WRITE
);
1223 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
1224 PIPE_TRANSFER_WRITE
,
1228 srcBlockStride
= util_format_get_stride(pformat
, width
);
1229 dstBlockStride
= stImage
->transfer
->stride
;
1231 assert(stImage
->pt
);
1232 /* TODO find good values for block and strides */
1233 /* TODO also adjust texImage->data for yoffset/xoffset */
1237 if (!texImage
->Data
) {
1238 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1242 assert(xoffset
% util_format_get_blockwidth(pformat
) == 0);
1243 assert(yoffset
% util_format_get_blockheight(pformat
) == 0);
1244 assert(width
% util_format_get_blockwidth(pformat
) == 0);
1245 assert(height
% util_format_get_blockheight(pformat
) == 0);
1247 for (y
= 0; y
< height
; y
+= util_format_get_blockheight(pformat
)) {
1248 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1249 const char *src
= (const char*)data
+ srcBlockStride
* util_format_get_nblocksy(pformat
, y
);
1250 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* util_format_get_nblocksy(pformat
, y
);
1251 memcpy(dst
, src
, util_format_get_stride(pformat
, width
));
1255 st_texture_image_unmap(ctx
->st
, stImage
);
1256 texImage
->Data
= NULL
;
1262 st_CompressedTexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1263 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1264 GLsizei width
, GLint height
, GLint depth
,
1266 GLsizei imageSize
, const GLvoid
*data
,
1267 struct gl_texture_object
*texObj
,
1268 struct gl_texture_image
*texImage
)
1276 * Do a CopyTexSubImage operation using a read transfer from the source,
1277 * a write transfer to the destination and get_tile()/put_tile() to access
1278 * the pixels/texels.
1280 * Note: srcY=0=TOP of renderbuffer
1283 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1284 struct st_renderbuffer
*strb
,
1285 struct st_texture_image
*stImage
,
1287 GLint destX
, GLint destY
, GLint destZ
,
1288 GLint srcX
, GLint srcY
,
1289 GLsizei width
, GLsizei height
)
1291 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1292 struct pipe_transfer
*src_trans
;
1294 enum pipe_transfer_usage transfer_usage
;
1296 if (ST_DEBUG
& DEBUG_FALLBACK
)
1297 debug_printf("%s: fallback processing\n", __FUNCTION__
);
1299 assert(width
<= MAX_WIDTH
);
1301 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1302 srcY
= strb
->Base
.Height
- srcY
- height
;
1305 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1312 if ((baseFormat
== GL_DEPTH_COMPONENT
||
1313 baseFormat
== GL_DEPTH_STENCIL
) &&
1314 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1315 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1317 transfer_usage
= PIPE_TRANSFER_WRITE
;
1319 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1322 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, transfer_usage
,
1323 destX
, destY
, width
, height
);
1325 if (baseFormat
== GL_DEPTH_COMPONENT
||
1326 baseFormat
== GL_DEPTH_STENCIL
) {
1327 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1328 ctx
->Pixel
.DepthBias
!= 0.0F
);
1331 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1332 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1341 /* To avoid a large temp memory allocation, do copy row by row */
1342 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1343 uint data
[MAX_WIDTH
];
1344 pipe_get_tile_z(pipe
, src_trans
, 0, srcY
, width
, 1, data
);
1346 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1348 pipe_put_tile_z(pipe
, stImage
->transfer
, 0, row
, width
, 1, data
);
1354 (GLfloat
*) malloc(width
* height
* 4 * sizeof(GLfloat
));
1356 if (tempSrc
&& texDest
) {
1357 const GLint dims
= 2;
1358 const GLint dstRowStride
= stImage
->transfer
->stride
;
1359 struct gl_texture_image
*texImage
= &stImage
->base
;
1360 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1362 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1363 unpack
.Invert
= GL_TRUE
;
1366 /* get float/RGBA image from framebuffer */
1367 /* XXX this usually involves a lot of int/float conversion.
1368 * try to avoid that someday.
1370 pipe_get_tile_rgba(pipe
, src_trans
, 0, 0, width
, height
, tempSrc
);
1372 /* Store into texture memory.
1373 * Note that this does some special things such as pixel transfer
1374 * ops and format conversion. In particular, if the dest tex format
1375 * is actually RGBA but the user created the texture as GL_RGB we
1376 * need to fill-in/override the alpha channel with 1.0.
1378 _mesa_texstore(ctx
, dims
,
1379 texImage
->_BaseFormat
,
1380 texImage
->TexFormat
,
1384 texImage
->ImageOffsets
,
1386 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1390 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1397 st_texture_image_unmap(ctx
->st
, stImage
);
1398 pipe
->transfer_destroy(pipe
, src_trans
);
1404 * If the format of the src renderbuffer and the format of the dest
1405 * texture are compatible (in terms of blitting), return a TGSI writemask
1406 * to be used during the blit.
1407 * If the src/dest are incompatible, return 0.
1410 compatible_src_dst_formats(GLcontext
*ctx
,
1411 const struct gl_renderbuffer
*src
,
1412 const struct gl_texture_image
*dst
)
1414 /* Get logical base formats for the src and dest.
1415 * That is, use the user-requested formats and not the actual, device-
1417 * For example, the user may have requested an A8 texture but the
1418 * driver may actually be using an RGBA texture format. When we
1419 * copy/blit to that texture, we only want to copy the Alpha channel
1420 * and not the RGB channels.
1422 * Similarly, when the src FBO was created an RGB format may have been
1423 * requested but the driver actually chose an RGBA format. In that case,
1424 * we don't want to copy the undefined Alpha channel to the dest texture
1425 * (it should be 1.0).
1427 const GLenum srcFormat
= _mesa_base_fbo_format(ctx
, src
->InternalFormat
);
1428 const GLenum dstFormat
= _mesa_base_tex_format(ctx
, dst
->InternalFormat
);
1431 * XXX when we have red-only and red/green renderbuffers we'll need
1432 * to add more cases here (or implement a general-purpose routine that
1433 * queries the existance of the R,G,B,A channels in the src and dest).
1435 if (srcFormat
== dstFormat
) {
1436 /* This is the same as matching_base_formats, which should
1437 * always pass, as it did previously.
1439 return TGSI_WRITEMASK_XYZW
;
1441 else if (srcFormat
== GL_RGB
&& dstFormat
== GL_RGBA
) {
1442 /* Make sure that A in the dest is 1. The actual src format
1443 * may be RGBA and have undefined A values.
1445 return TGSI_WRITEMASK_XYZ
;
1447 else if (srcFormat
== GL_RGBA
&& dstFormat
== GL_RGB
) {
1448 /* Make sure that A in the dest is 1. The actual dst format
1449 * may be RGBA and will need A=1 to provide proper alpha values
1450 * when sampled later.
1452 return TGSI_WRITEMASK_XYZ
;
1455 if (ST_DEBUG
& DEBUG_FALLBACK
)
1456 debug_printf("%s failed for src %s, dst %s\n",
1458 _mesa_lookup_enum_by_nr(srcFormat
),
1459 _mesa_lookup_enum_by_nr(dstFormat
));
1470 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1471 * Note that the region to copy has already been clipped so we know we
1472 * won't read from outside the source renderbuffer's bounds.
1474 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1477 st_copy_texsubimage(GLcontext
*ctx
,
1478 GLenum target
, GLint level
,
1479 GLint destX
, GLint destY
, GLint destZ
,
1480 GLint srcX
, GLint srcY
,
1481 GLsizei width
, GLsizei height
)
1483 struct gl_texture_unit
*texUnit
=
1484 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1485 struct gl_texture_object
*texObj
=
1486 _mesa_select_tex_object(ctx
, texUnit
, target
);
1487 struct gl_texture_image
*texImage
=
1488 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1489 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1490 const GLenum texBaseFormat
= texImage
->_BaseFormat
;
1491 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1492 struct st_renderbuffer
*strb
;
1493 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1494 struct pipe_screen
*screen
= pipe
->screen
;
1495 enum pipe_format dest_format
, src_format
;
1496 GLboolean use_fallback
= GL_TRUE
;
1497 GLboolean matching_base_formats
;
1498 GLuint format_writemask
;
1499 struct pipe_surface
*dest_surface
= NULL
;
1500 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1502 /* any rendering in progress must flushed before we grab the fb image */
1503 st_flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
1505 /* make sure finalize_textures has been called?
1507 if (0) st_validate_state(ctx
->st
);
1509 /* determine if copying depth or color data */
1510 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1511 texBaseFormat
== GL_DEPTH_STENCIL
) {
1512 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1515 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1516 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1519 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1520 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1548 if (width
< 0 || height
< 0)
1553 assert(strb
->surface
);
1554 assert(stImage
->pt
);
1556 src_format
= strb
->surface
->format
;
1557 dest_format
= stImage
->pt
->format
;
1560 * Determine if the src framebuffer and dest texture have the same
1561 * base format. We need this to detect a case such as the framebuffer
1562 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1563 * texture format stores RGBA we need to set A=1 (overriding the
1564 * framebuffer's alpha values). We can't do that with the blit or
1565 * textured-quad paths.
1567 matching_base_formats
=
1568 (_mesa_get_format_base_format(strb
->Base
.Format
) ==
1569 _mesa_get_format_base_format(texImage
->TexFormat
));
1570 format_writemask
= compatible_src_dst_formats(ctx
, &strb
->Base
, texImage
);
1572 if (ctx
->_ImageTransferState
== 0x0) {
1574 if (matching_base_formats
&&
1575 src_format
== dest_format
&&
1578 /* use surface_copy() / blit */
1580 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1581 stImage
->face
, stImage
->level
,
1583 PIPE_BIND_BLIT_DESTINATION
);
1585 /* for surface_copy(), y=0=top, always */
1586 pipe
->surface_copy(pipe
,
1595 use_fallback
= GL_FALSE
;
1597 else if (format_writemask
&&
1598 texBaseFormat
!= GL_DEPTH_COMPONENT
&&
1599 texBaseFormat
!= GL_DEPTH_STENCIL
&&
1600 screen
->is_format_supported(screen
, src_format
,
1602 PIPE_BIND_SAMPLER_VIEW
,
1604 screen
->is_format_supported(screen
, dest_format
,
1606 PIPE_BIND_RENDER_TARGET
,
1608 /* draw textured quad to do the copy */
1611 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1612 stImage
->face
, stImage
->level
,
1614 PIPE_BIND_BLIT_DESTINATION
);
1617 srcY1
= strb
->Base
.Height
- srcY
- height
;
1618 srcY0
= srcY1
+ height
;
1622 srcY1
= srcY0
+ height
;
1624 util_blit_pixels_writemask(ctx
->st
->blit
,
1626 st_renderbuffer_get_sampler_view(strb
, pipe
),
1628 srcX
+ width
, srcY1
,
1631 destX
+ width
, destY
+ height
,
1632 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1634 use_fallback
= GL_FALSE
;
1638 pipe_surface_reference(&dest_surface
, NULL
);
1642 /* software fallback */
1643 fallback_copy_texsubimage(ctx
, target
, level
,
1644 strb
, stImage
, texBaseFormat
,
1645 destX
, destY
, destZ
,
1646 srcX
, srcY
, width
, height
);
1653 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1654 GLenum internalFormat
,
1655 GLint x
, GLint y
, GLsizei width
, GLint border
)
1657 struct gl_texture_unit
*texUnit
=
1658 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1659 struct gl_texture_object
*texObj
=
1660 _mesa_select_tex_object(ctx
, texUnit
, target
);
1661 struct gl_texture_image
*texImage
=
1662 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1664 /* Setup or redefine the texture object, texture and texture
1665 * image. Don't populate yet.
1667 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1669 GL_RGBA
, CHAN_TYPE
, NULL
,
1670 &ctx
->DefaultPacking
, texObj
, texImage
);
1672 st_copy_texsubimage(ctx
, target
, level
,
1673 0, 0, 0, /* destX,Y,Z */
1674 x
, y
, width
, 1); /* src X, Y, size */
1679 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1680 GLenum internalFormat
,
1681 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1684 struct gl_texture_unit
*texUnit
=
1685 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1686 struct gl_texture_object
*texObj
=
1687 _mesa_select_tex_object(ctx
, texUnit
, target
);
1688 struct gl_texture_image
*texImage
=
1689 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1691 /* Setup or redefine the texture object, texture and texture
1692 * image. Don't populate yet.
1694 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1695 width
, height
, border
,
1696 GL_RGBA
, CHAN_TYPE
, NULL
,
1697 &ctx
->DefaultPacking
, texObj
, texImage
);
1699 st_copy_texsubimage(ctx
, target
, level
,
1700 0, 0, 0, /* destX,Y,Z */
1701 x
, y
, width
, height
); /* src X, Y, size */
1706 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1707 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1709 const GLint yoffset
= 0, zoffset
= 0;
1710 const GLsizei height
= 1;
1711 st_copy_texsubimage(ctx
, target
, level
,
1712 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1713 x
, y
, width
, height
); /* src X, Y, size */
1718 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1719 GLint xoffset
, GLint yoffset
,
1720 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1722 const GLint zoffset
= 0;
1723 st_copy_texsubimage(ctx
, target
, level
,
1724 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1725 x
, y
, width
, height
); /* src X, Y, size */
1730 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1731 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1732 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1734 st_copy_texsubimage(ctx
, target
, level
,
1735 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1736 x
, y
, width
, height
); /* src X, Y, size */
1741 copy_image_data_to_texture(struct st_context
*st
,
1742 struct st_texture_object
*stObj
,
1744 struct st_texture_image
*stImage
)
1747 /* Copy potentially with the blitter:
1749 st_texture_image_copy(st
->pipe
,
1750 stObj
->pt
, dstLevel
, /* dest texture, level */
1751 stImage
->pt
, /* src texture */
1754 pipe_resource_reference(&stImage
->pt
, NULL
);
1756 else if (stImage
->base
.Data
) {
1757 /* More straightforward upload.
1759 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1760 PIPE_TRANSFER_WRITE
);
1762 st_texture_image_data(st
,
1767 stImage
->base
.RowStride
*
1768 util_format_get_blocksize(stObj
->pt
->format
),
1769 stImage
->base
.RowStride
*
1770 stImage
->base
.Height
*
1771 util_format_get_blocksize(stObj
->pt
->format
));
1772 _mesa_align_free(stImage
->base
.Data
);
1773 stImage
->base
.Data
= NULL
;
1776 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1781 * Called during state validation. When this function is finished,
1782 * the texture object should be ready for rendering.
1783 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1786 st_finalize_texture(GLcontext
*ctx
,
1787 struct pipe_context
*pipe
,
1788 struct gl_texture_object
*tObj
,
1789 GLboolean
*needFlush
)
1791 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1792 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1793 GLuint blockSize
, face
;
1794 struct st_texture_image
*firstImage
;
1796 *needFlush
= GL_FALSE
;
1798 if (stObj
->base
._Complete
) {
1799 /* The texture is complete and we know exactly how many mipmap levels
1800 * are present/needed. This is conditional because we may be called
1801 * from the st_generate_mipmap() function when the texture object is
1802 * incomplete. In that case, we'll have set stObj->lastLevel before
1805 if (stObj
->base
.MinFilter
== GL_LINEAR
||
1806 stObj
->base
.MinFilter
== GL_NEAREST
)
1807 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1809 stObj
->lastLevel
= stObj
->base
._MaxLevel
- stObj
->base
.BaseLevel
;
1812 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1814 /* If both firstImage and stObj point to a texture which can contain
1815 * all active images, favour firstImage. Note that because of the
1816 * completeness requirement, we know that the image dimensions
1819 if (firstImage
->pt
&&
1820 firstImage
->pt
!= stObj
->pt
&&
1821 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1822 pipe_resource_reference(&stObj
->pt
, firstImage
->pt
);
1823 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
1826 /* bytes per pixel block (blocks are usually 1x1) */
1827 blockSize
= _mesa_get_format_bytes(firstImage
->base
.TexFormat
);
1829 /* If we already have a gallium texture, check that it matches the texture
1830 * object's format, target, size, num_levels, etc.
1833 const enum pipe_format fmt
=
1834 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1835 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1836 stObj
->pt
->format
!= fmt
||
1837 stObj
->pt
->last_level
< stObj
->lastLevel
||
1838 stObj
->pt
->width0
!= firstImage
->base
.Width2
||
1839 stObj
->pt
->height0
!= firstImage
->base
.Height2
||
1840 stObj
->pt
->depth0
!= firstImage
->base
.Depth2
)
1842 pipe_resource_reference(&stObj
->pt
, NULL
);
1843 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
1844 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1848 /* May need to create a new gallium texture:
1851 const enum pipe_format fmt
=
1852 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1853 GLuint usage
= default_usage(fmt
);
1855 stObj
->pt
= st_texture_create(ctx
->st
,
1856 gl_target_to_pipe(stObj
->base
.Target
),
1859 firstImage
->base
.Width2
,
1860 firstImage
->base
.Height2
,
1861 firstImage
->base
.Depth2
,
1865 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1870 /* Pull in any images not in the object's texture:
1872 for (face
= 0; face
< nr_faces
; face
++) {
1874 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1875 struct st_texture_image
*stImage
=
1876 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1878 /* Need to import images in main memory or held in other textures.
1880 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1881 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1882 *needFlush
= GL_TRUE
;
1892 * Returns pointer to a default/dummy texture.
1893 * This is typically used when the current shader has tex/sample instructions
1894 * but the user has not provided a (any) texture(s).
1896 struct gl_texture_object
*
1897 st_get_default_texture(struct st_context
*st
)
1899 if (!st
->default_texture
) {
1900 static const GLenum target
= GL_TEXTURE_2D
;
1901 GLubyte pixels
[16][16][4];
1902 struct gl_texture_object
*texObj
;
1903 struct gl_texture_image
*texImg
;
1906 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1907 * when attempting to sample incomplete textures.
1909 for (i
= 0; i
< 16; i
++) {
1910 for (j
= 0; j
< 16; j
++) {
1911 pixels
[i
][j
][0] = 0;
1912 pixels
[i
][j
][1] = 0;
1913 pixels
[i
][j
][2] = 0;
1914 pixels
[i
][j
][3] = 255;
1918 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1920 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1922 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1923 16, 16, 1, 0, /* w, h, d, border */
1926 st_TexImage(st
->ctx
, 2, target
,
1927 0, GL_RGBA
, /* level, intformat */
1928 16, 16, 1, 0, /* w, h, d, border */
1929 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1930 &st
->ctx
->DefaultPacking
,
1934 texObj
->MinFilter
= GL_NEAREST
;
1935 texObj
->MagFilter
= GL_NEAREST
;
1936 texObj
->_Complete
= GL_TRUE
;
1938 st
->default_texture
= texObj
;
1940 return st
->default_texture
;
1945 st_init_texture_functions(struct dd_function_table
*functions
)
1947 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1948 functions
->TexImage1D
= st_TexImage1D
;
1949 functions
->TexImage2D
= st_TexImage2D
;
1950 functions
->TexImage3D
= st_TexImage3D
;
1951 functions
->TexSubImage1D
= st_TexSubImage1D
;
1952 functions
->TexSubImage2D
= st_TexSubImage2D
;
1953 functions
->TexSubImage3D
= st_TexSubImage3D
;
1954 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1955 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1956 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1957 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1958 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1959 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1960 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1961 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1962 functions
->GenerateMipmap
= st_generate_mipmap
;
1964 functions
->GetTexImage
= st_GetTexImage
;
1966 /* compressed texture functions */
1967 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1968 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1970 functions
->NewTextureObject
= st_NewTextureObject
;
1971 functions
->NewTextureImage
= st_NewTextureImage
;
1972 functions
->DeleteTexture
= st_DeleteTextureObject
;
1973 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1974 functions
->UpdateTexturePalette
= 0;
1976 functions
->TextureMemCpy
= do_memcpy
;
1978 /* XXX Temporary until we can query pipe's texture sizes */
1979 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;