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 DBG("%s - success\n", __FUNCTION__
);
330 * Adjust pixel unpack params and image dimensions to strip off the
332 * Gallium doesn't support texture borders. They've seldem been used
333 * and seldom been implemented correctly anyway.
334 * \param unpackNew returns the new pixel unpack parameters
337 strip_texture_border(GLint border
,
338 GLint
*width
, GLint
*height
, GLint
*depth
,
339 const struct gl_pixelstore_attrib
*unpack
,
340 struct gl_pixelstore_attrib
*unpackNew
)
342 assert(border
> 0); /* sanity check */
344 *unpackNew
= *unpack
;
346 if (unpackNew
->RowLength
== 0)
347 unpackNew
->RowLength
= *width
;
349 if (depth
&& unpackNew
->ImageHeight
== 0)
350 unpackNew
->ImageHeight
= *height
;
352 unpackNew
->SkipPixels
+= border
;
354 unpackNew
->SkipRows
+= border
;
356 unpackNew
->SkipImages
+= border
;
359 *width
= *width
- 2 * border
;
360 if (height
&& *height
>= 3)
361 *height
= *height
- 2 * border
;
362 if (depth
&& *depth
>= 3)
363 *depth
= *depth
- 2 * border
;
368 * Try to do texture compression via rendering. If the Gallium driver
369 * can render into a compressed surface this will allow us to do texture
371 * \return GL_TRUE for success, GL_FALSE for failure
374 compress_with_blit(GLcontext
* ctx
,
375 GLenum target
, GLint level
,
376 GLint xoffset
, GLint yoffset
, GLint zoffset
,
377 GLint width
, GLint height
, GLint depth
,
378 GLenum format
, GLenum type
, const void *pixels
,
379 const struct gl_pixelstore_attrib
*unpack
,
380 struct gl_texture_image
*texImage
)
382 const GLuint dstImageOffsets
[1] = {0};
383 struct st_texture_image
*stImage
= st_texture_image(texImage
);
384 struct pipe_context
*pipe
= ctx
->st
->pipe
;
385 struct pipe_screen
*screen
= pipe
->screen
;
386 gl_format mesa_format
;
387 struct pipe_resource templ
;
388 struct pipe_resource
*src_tex
;
389 struct pipe_sampler_view view_templ
;
390 struct pipe_sampler_view
*src_view
;
391 struct pipe_surface
*dst_surface
;
392 struct pipe_transfer
*tex_xfer
;
396 /* XXX: Can this happen? Should we assert? */
400 /* get destination surface (in the compressed texture) */
401 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
402 stImage
->face
, stImage
->level
, 0,
403 PIPE_BIND_BLIT_DESTINATION
);
405 /* can't render into this format (or other problem) */
409 /* Choose format for the temporary RGBA texture image.
411 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
416 /* Create the temporary source texture
418 memset(&templ
, 0, sizeof(templ
));
419 templ
.target
= PIPE_TEXTURE_2D
;
420 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
);
421 templ
.width0
= width
;
422 templ
.height0
= height
;
424 templ
.last_level
= 0;
425 templ
._usage
= PIPE_USAGE_DEFAULT
;
426 templ
.bind
= PIPE_BIND_SAMPLER_VIEW
;
427 src_tex
= screen
->resource_create(screen
, &templ
);
432 /* Put user's tex data into the temporary texture
434 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
435 0, 0, 0, /* face, level are zero */
437 0, 0, width
, height
); /* x, y, w, h */
438 map
= pipe_transfer_map(pipe
, tex_xfer
);
440 _mesa_texstore(ctx
, 2, GL_RGBA
, mesa_format
,
442 0, 0, 0, /* dest x/y/z offset */
443 tex_xfer
->stride
, /* dest row stride (bytes) */
444 dstImageOffsets
, /* image offsets (for 3D only) */
445 width
, height
, 1, /* size */
446 format
, type
, /* source format/type */
447 pixels
, /* source data */
448 unpack
); /* source data packing */
450 pipe_transfer_unmap(pipe
, tex_xfer
);
451 pipe
->transfer_destroy(pipe
, tex_xfer
);
453 /* Create temporary sampler view */
454 u_sampler_view_default_template(&view_templ
,
457 src_view
= pipe
->create_sampler_view(pipe
, src_tex
, &view_templ
);
460 /* copy / compress image */
461 util_blit_pixels_tex(ctx
->st
->blit
,
462 src_view
, /* sampler view (src) */
463 0, 0, /* src x0, y0 */
464 width
, height
, /* src x1, y1 */
465 dst_surface
, /* pipe_surface (dst) */
466 xoffset
, yoffset
, /* dst x0, y0 */
467 xoffset
+ width
, /* dst x1 */
468 yoffset
+ height
, /* dst y1 */
470 PIPE_TEX_MIPFILTER_NEAREST
);
472 pipe_surface_reference(&dst_surface
, NULL
);
473 pipe_resource_reference(&src_tex
, NULL
);
474 pipe_sampler_view_reference(&src_view
, NULL
);
481 * Do glTexImage1/2/3D().
484 st_TexImage(GLcontext
* ctx
,
486 GLenum target
, GLint level
,
487 GLint internalFormat
,
488 GLint width
, GLint height
, GLint depth
,
490 GLenum format
, GLenum type
, const void *pixels
,
491 const struct gl_pixelstore_attrib
*unpack
,
492 struct gl_texture_object
*texObj
,
493 struct gl_texture_image
*texImage
,
494 GLsizei imageSize
, GLboolean compressed_src
)
496 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
497 struct st_texture_object
*stObj
= st_texture_object(texObj
);
498 struct st_texture_image
*stImage
= st_texture_image(texImage
);
499 GLint postConvWidth
, postConvHeight
;
500 GLint texelBytes
, sizeInBytes
;
501 GLuint dstRowStride
= 0;
502 struct gl_pixelstore_attrib unpackNB
;
503 enum pipe_transfer_usage transfer_usage
= 0;
505 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
506 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
508 /* switch to "normal" */
509 if (stObj
->surface_based
) {
510 _mesa_clear_texture_object(ctx
, texObj
);
511 stObj
->surface_based
= GL_FALSE
;
514 /* gallium does not support texture borders, strip it off */
516 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
518 texImage
->Width
= width
;
519 texImage
->Height
= height
;
520 texImage
->Depth
= depth
;
521 texImage
->Border
= 0;
525 postConvWidth
= width
;
526 postConvHeight
= height
;
528 stImage
->face
= _mesa_tex_target_to_face(target
);
529 stImage
->level
= level
;
532 if (ctx
->_ImageTransferState
& IMAGE_CONVOLUTION_BIT
) {
533 _mesa_adjust_image_for_convolution(ctx
, dims
, &postConvWidth
,
538 _mesa_set_fetch_functions(texImage
, dims
);
540 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
541 /* must be a compressed format */
545 texelBytes
= _mesa_get_format_bytes(texImage
->TexFormat
);
547 /* Minimum pitch of 32 bytes */
548 if (postConvWidth
* texelBytes
< 32) {
549 postConvWidth
= 32 / texelBytes
;
550 texImage
->RowStride
= postConvWidth
;
553 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
554 /*assert(texImage->RowStride == postConvWidth);*/
557 /* Release the reference to a potentially orphaned buffer.
558 * Release any old malloced memory.
561 pipe_resource_reference(&stImage
->pt
, NULL
);
562 assert(!texImage
->Data
);
564 else if (texImage
->Data
) {
565 _mesa_align_free(texImage
->Data
);
569 * See if the new image is somehow incompatible with the existing
570 * mipmap. If so, free the old mipmap.
573 if (stObj
->teximage_realloc
||
574 level
> (GLint
) stObj
->pt
->last_level
||
575 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
576 stImage
->face
, stImage
->level
)) {
578 pipe_resource_reference(&stObj
->pt
, NULL
);
580 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
581 stObj
->teximage_realloc
= FALSE
;
585 if (width
== 0 || height
== 0 || depth
== 0) {
586 /* stop after freeing old image */
591 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
593 /* Probably out of memory.
594 * Try flushing any pending rendering, then retry.
597 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
599 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
605 assert(!stImage
->pt
);
608 st_texture_match_image(stObj
->pt
, &stImage
->base
,
609 stImage
->face
, stImage
->level
)) {
611 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
616 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
618 /* st_CopyTexImage calls this function with pixels == NULL, with
619 * the expectation that the texture will be set up but nothing
620 * more will be done. This is where those calls return:
622 if (compressed_src
) {
623 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
625 "glCompressedTexImage");
628 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
630 pixels
, unpack
, "glTexImage");
633 /* Note: we can't check for pixels==NULL until after we've allocated
634 * memory for the texture.
637 /* See if we can do texture compression with a blit/render.
639 if (!compressed_src
&&
641 _mesa_is_format_compressed(texImage
->TexFormat
) &&
642 screen
->is_format_supported(screen
,
645 PIPE_BIND_RENDER_TARGET
, 0)) {
649 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
650 format
, type
, pixels
, unpack
, texImage
)) {
656 if (format
== GL_DEPTH_COMPONENT
&&
657 util_format_is_depth_and_stencil(stImage
->pt
->format
))
658 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
660 transfer_usage
= PIPE_TRANSFER_WRITE
;
662 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
663 transfer_usage
, 0, 0,
665 stImage
->base
.Height
);
666 if(stImage
->transfer
)
667 dstRowStride
= stImage
->transfer
->stride
;
670 /* Allocate regular memory and store the image there temporarily. */
671 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
672 sizeInBytes
= _mesa_format_image_size(texImage
->TexFormat
,
676 dstRowStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
680 dstRowStride
= postConvWidth
* texelBytes
;
681 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
684 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
687 if (!texImage
->Data
) {
688 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
695 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
696 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
698 /* Copy data. Would like to know when it's ok for us to eg. use
699 * the blitter to copy. Or, use the hardware to do the format
700 * conversion and copy:
702 if (compressed_src
) {
703 const GLuint srcImageStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
704 if(dstRowStride
== srcImageStride
)
705 memcpy(texImage
->Data
, pixels
, imageSize
);
708 char *dst
= texImage
->Data
;
709 const char *src
= pixels
;
710 GLuint i
, bw
, bh
, lines
;
711 _mesa_get_format_block_size(texImage
->TexFormat
, &bw
, &bh
);
712 lines
= (height
+ bh
- 1) / bh
;
714 for(i
= 0; i
< lines
; ++i
)
716 memcpy(dst
, src
, srcImageStride
);
718 src
+= srcImageStride
;
723 const GLuint srcImageStride
=
724 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
726 const GLubyte
*src
= (const GLubyte
*) pixels
;
728 for (i
= 0; i
< depth
; i
++) {
729 if (!_mesa_texstore(ctx
, dims
,
730 texImage
->_BaseFormat
,
733 0, 0, 0, /* dstX/Y/Zoffset */
735 texImage
->ImageOffsets
,
737 format
, type
, src
, unpack
)) {
738 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
741 if (stImage
->pt
&& i
+ 1 < depth
) {
742 /* unmap this slice */
743 st_texture_image_unmap(ctx
->st
, stImage
);
744 /* map next slice of 3D texture */
745 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
746 transfer_usage
, 0, 0,
748 stImage
->base
.Height
);
749 src
+= srcImageStride
;
755 _mesa_unmap_teximage_pbo(ctx
, unpack
);
757 if (stImage
->pt
&& texImage
->Data
) {
758 st_texture_image_unmap(ctx
->st
, stImage
);
759 texImage
->Data
= NULL
;
765 st_TexImage3D(GLcontext
* ctx
,
766 GLenum target
, GLint level
,
767 GLint internalFormat
,
768 GLint width
, GLint height
, GLint depth
,
770 GLenum format
, GLenum type
, const void *pixels
,
771 const struct gl_pixelstore_attrib
*unpack
,
772 struct gl_texture_object
*texObj
,
773 struct gl_texture_image
*texImage
)
775 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
776 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
782 st_TexImage2D(GLcontext
* ctx
,
783 GLenum target
, GLint level
,
784 GLint internalFormat
,
785 GLint width
, GLint height
, GLint border
,
786 GLenum format
, GLenum type
, const void *pixels
,
787 const struct gl_pixelstore_attrib
*unpack
,
788 struct gl_texture_object
*texObj
,
789 struct gl_texture_image
*texImage
)
791 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
792 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
797 st_TexImage1D(GLcontext
* ctx
,
798 GLenum target
, GLint level
,
799 GLint internalFormat
,
800 GLint width
, GLint border
,
801 GLenum format
, GLenum type
, const void *pixels
,
802 const struct gl_pixelstore_attrib
*unpack
,
803 struct gl_texture_object
*texObj
,
804 struct gl_texture_image
*texImage
)
806 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
807 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
812 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
813 GLint internalFormat
,
814 GLint width
, GLint height
, GLint border
,
815 GLsizei imageSize
, const GLvoid
*data
,
816 struct gl_texture_object
*texObj
,
817 struct gl_texture_image
*texImage
)
819 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
820 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
826 * glGetTexImage() helper: decompress a compressed texture by rendering
827 * a textured quad. Store the results in the user's buffer.
830 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
831 GLenum format
, GLenum type
, GLvoid
*pixels
,
832 struct gl_texture_object
*texObj
,
833 struct gl_texture_image
*texImage
)
835 struct pipe_context
*pipe
= ctx
->st
->pipe
;
836 struct pipe_screen
*screen
= pipe
->screen
;
837 struct st_texture_image
*stImage
= st_texture_image(texImage
);
838 struct st_texture_object
*stObj
= st_texture_object(texObj
);
839 struct pipe_sampler_view
*src_view
=
840 st_get_texture_sampler_view(stObj
, pipe
);
841 const GLuint width
= texImage
->Width
;
842 const GLuint height
= texImage
->Height
;
843 struct pipe_surface
*dst_surface
;
844 struct pipe_resource
*dst_texture
;
845 struct pipe_transfer
*tex_xfer
;
846 unsigned bind
= (PIPE_BIND_BLIT_DESTINATION
|
847 PIPE_BIND_RENDER_TARGET
| /* util_blit may choose to render */
848 PIPE_BIND_TRANSFER_READ
);
850 /* create temp / dest surface */
851 if (!util_create_rgba_surface(screen
, width
, height
, bind
,
852 &dst_texture
, &dst_surface
)) {
853 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
854 "in decompress_with_blit()");
858 /* blit/render/decompress */
859 util_blit_pixels_tex(ctx
->st
->blit
,
860 src_view
, /* pipe_resource (src) */
861 0, 0, /* src x0, y0 */
862 width
, height
, /* src x1, y1 */
863 dst_surface
, /* pipe_surface (dst) */
864 0, 0, /* dst x0, y0 */
865 width
, height
, /* dst x1, y1 */
867 PIPE_TEX_MIPFILTER_NEAREST
);
869 /* map the dst_surface so we can read from it */
870 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
871 dst_texture
, 0, 0, 0,
873 0, 0, width
, height
);
875 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
877 /* copy/pack data into user buffer */
878 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
880 const uint bytesPerRow
= width
* util_format_get_blocksize(stImage
->pt
->format
);
881 ubyte
*map
= pipe_transfer_map(pipe
, tex_xfer
);
883 for (row
= 0; row
< height
; row
++) {
884 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
885 height
, format
, type
, row
, 0);
886 memcpy(dest
, map
, bytesPerRow
);
887 map
+= tex_xfer
->stride
;
889 pipe_transfer_unmap(pipe
, tex_xfer
);
892 /* format translation via floats */
894 for (row
= 0; row
< height
; row
++) {
895 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
896 GLfloat rgba
[4 * MAX_WIDTH
];
897 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
898 height
, format
, type
, row
, 0);
900 if (ST_DEBUG
& DEBUG_FALLBACK
)
901 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
903 /* get float[4] rgba row from surface */
904 pipe_get_tile_rgba(pipe
, tex_xfer
, 0, row
, width
, 1, rgba
);
906 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
907 type
, dest
, &ctx
->Pack
, transferOps
);
911 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
913 pipe
->transfer_destroy(pipe
, tex_xfer
);
915 /* destroy the temp / dest surface */
916 util_destroy_rgba_surface(dst_texture
, dst_surface
);
922 * Need to map texture image into memory before copying image data,
926 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
927 GLenum format
, GLenum type
, GLvoid
* pixels
,
928 struct gl_texture_object
*texObj
,
929 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
931 struct st_texture_image
*stImage
= st_texture_image(texImage
);
932 const GLuint dstImageStride
=
933 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
939 util_format_is_s3tc(stImage
->pt
->format
) &&
941 /* Need to decompress the texture.
942 * We'll do this by rendering a textured quad.
943 * Note that we only expect RGBA formats (no Z/depth formats).
945 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
952 /* Image is stored in hardware format in a buffer managed by the
953 * kernel. Need to explicitly map and unmap it.
955 unsigned face
= _mesa_tex_target_to_face(target
);
957 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
960 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
961 PIPE_TRANSFER_READ
, 0, 0,
963 stImage
->base
.Height
);
964 texImage
->RowStride
= stImage
->transfer
->stride
/ util_format_get_blocksize(stImage
->pt
->format
);
967 /* Otherwise, the image should actually be stored in
968 * texImage->Data. This is pretty confusing for
969 * everybody, I'd much prefer to separate the two functions of
970 * texImage->Data - storage for texture images in main memory
971 * and access (ie mappings) of images. In other words, we'd
972 * create a new texImage->Map field and leave Data simply for
975 assert(texImage
->Data
);
978 depth
= texImage
->Depth
;
981 dest
= (GLubyte
*) pixels
;
983 for (i
= 0; i
< depth
; i
++) {
984 if (compressed_dst
) {
985 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
989 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
993 if (stImage
->pt
&& i
+ 1 < depth
) {
994 /* unmap this slice */
995 st_texture_image_unmap(ctx
->st
, stImage
);
996 /* map next slice of 3D texture */
997 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
998 PIPE_TRANSFER_READ
, 0, 0,
1000 stImage
->base
.Height
);
1001 dest
+= dstImageStride
;
1005 texImage
->Depth
= depth
;
1009 st_texture_image_unmap(ctx
->st
, stImage
);
1010 texImage
->Data
= NULL
;
1016 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
1017 GLenum format
, GLenum type
, GLvoid
* pixels
,
1018 struct gl_texture_object
*texObj
,
1019 struct gl_texture_image
*texImage
)
1021 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
1027 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
1029 struct gl_texture_object
*texObj
,
1030 struct gl_texture_image
*texImage
)
1032 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1039 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1040 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1041 GLint width
, GLint height
, GLint depth
,
1042 GLenum format
, GLenum type
, const void *pixels
,
1043 const struct gl_pixelstore_attrib
*packing
,
1044 struct gl_texture_object
*texObj
,
1045 struct gl_texture_image
*texImage
)
1047 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1048 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1049 GLuint dstRowStride
;
1050 const GLuint srcImageStride
=
1051 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1054 /* init to silence warning only: */
1055 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1057 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1058 _mesa_lookup_enum_by_nr(target
),
1059 level
, xoffset
, yoffset
, width
, height
);
1062 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1063 type
, pixels
, packing
, "glTexSubImage2D");
1067 /* See if we can do texture compression with a blit/render.
1069 if (!ctx
->Mesa_DXTn
&&
1070 _mesa_is_format_compressed(texImage
->TexFormat
) &&
1071 screen
->is_format_supported(screen
,
1072 stImage
->pt
->format
,
1073 stImage
->pt
->target
,
1074 PIPE_BIND_RENDER_TARGET
, 0)) {
1075 if (compress_with_blit(ctx
, target
, level
,
1076 xoffset
, yoffset
, zoffset
,
1077 width
, height
, depth
,
1078 format
, type
, pixels
, packing
, texImage
)) {
1083 /* Map buffer if necessary. Need to lock to prevent other contexts
1084 * from uploading the buffer under us.
1087 unsigned face
= _mesa_tex_target_to_face(target
);
1089 if (format
== GL_DEPTH_COMPONENT
&&
1090 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1091 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1093 transfer_usage
= PIPE_TRANSFER_WRITE
;
1095 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1097 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1103 if (!texImage
->Data
) {
1104 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1108 src
= (const GLubyte
*) pixels
;
1109 dstRowStride
= stImage
->transfer
->stride
;
1111 for (i
= 0; i
< depth
; i
++) {
1112 if (!_mesa_texstore(ctx
, dims
, texImage
->_BaseFormat
,
1113 texImage
->TexFormat
,
1117 texImage
->ImageOffsets
,
1119 format
, type
, src
, packing
)) {
1120 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1123 if (stImage
->pt
&& i
+ 1 < depth
) {
1124 /* unmap this slice */
1125 st_texture_image_unmap(ctx
->st
, stImage
);
1126 /* map next slice of 3D texture */
1127 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1132 src
+= srcImageStride
;
1137 _mesa_unmap_teximage_pbo(ctx
, packing
);
1139 if (stImage
->pt
&& texImage
->Data
) {
1140 st_texture_image_unmap(ctx
->st
, stImage
);
1141 texImage
->Data
= NULL
;
1148 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1149 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1150 GLsizei width
, GLsizei height
, GLsizei depth
,
1151 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1152 const struct gl_pixelstore_attrib
*packing
,
1153 struct gl_texture_object
*texObj
,
1154 struct gl_texture_image
*texImage
)
1156 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1157 width
, height
, depth
, format
, type
,
1158 pixels
, packing
, texObj
, texImage
);
1163 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1164 GLint xoffset
, GLint yoffset
,
1165 GLsizei width
, GLsizei height
,
1166 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1167 const struct gl_pixelstore_attrib
*packing
,
1168 struct gl_texture_object
*texObj
,
1169 struct gl_texture_image
*texImage
)
1171 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1172 width
, height
, 1, format
, type
,
1173 pixels
, packing
, texObj
, texImage
);
1178 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1179 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1180 const GLvoid
* pixels
,
1181 const struct gl_pixelstore_attrib
*packing
,
1182 struct gl_texture_object
*texObj
,
1183 struct gl_texture_image
*texImage
)
1185 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1186 format
, type
, pixels
, packing
, texObj
, texImage
);
1191 st_CompressedTexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1192 GLint xoffset
, GLsizei width
,
1194 GLsizei imageSize
, const GLvoid
*data
,
1195 struct gl_texture_object
*texObj
,
1196 struct gl_texture_image
*texImage
)
1203 st_CompressedTexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1204 GLint xoffset
, GLint yoffset
,
1205 GLsizei width
, GLint height
,
1207 GLsizei imageSize
, const GLvoid
*data
,
1208 struct gl_texture_object
*texObj
,
1209 struct gl_texture_image
*texImage
)
1211 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1215 enum pipe_format pformat
;
1218 unsigned face
= _mesa_tex_target_to_face(target
);
1219 pformat
= stImage
->pt
->format
;
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_get_renderbuffer_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
;