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"
30 #include "main/enums.h"
31 #include "main/fbobject.h"
32 #include "main/formats.h"
33 #include "main/image.h"
34 #include "main/imports.h"
35 #include "main/macros.h"
36 #include "main/mipmap.h"
37 #include "main/texcompress.h"
38 #include "main/texfetch.h"
39 #include "main/texgetimage.h"
40 #include "main/teximage.h"
41 #include "main/texobj.h"
42 #include "main/texstore.h"
44 #include "state_tracker/st_debug.h"
45 #include "state_tracker/st_context.h"
46 #include "state_tracker/st_cb_fbo.h"
47 #include "state_tracker/st_cb_flush.h"
48 #include "state_tracker/st_cb_texture.h"
49 #include "state_tracker/st_format.h"
50 #include "state_tracker/st_texture.h"
51 #include "state_tracker/st_gen_mipmap.h"
52 #include "state_tracker/st_atom.h"
54 #include "pipe/p_context.h"
55 #include "pipe/p_defines.h"
56 #include "util/u_inlines.h"
57 #include "pipe/p_shader_tokens.h"
58 #include "util/u_tile.h"
59 #include "util/u_blit.h"
60 #include "util/u_format.h"
61 #include "util/u_surface.h"
62 #include "util/u_sampler.h"
63 #include "util/u_math.h"
66 #define DBG if (0) printf
69 static enum pipe_texture_target
70 gl_target_to_pipe(GLenum target
)
74 return PIPE_TEXTURE_1D
;
77 return PIPE_TEXTURE_2D
;
79 case GL_TEXTURE_RECTANGLE_NV
:
80 return PIPE_TEXTURE_RECT
;
83 return PIPE_TEXTURE_3D
;
85 case GL_TEXTURE_CUBE_MAP_ARB
:
86 return PIPE_TEXTURE_CUBE
;
95 /** called via ctx->Driver.NewTextureImage() */
96 static struct gl_texture_image
*
97 st_NewTextureImage(GLcontext
* ctx
)
99 DBG("%s\n", __FUNCTION__
);
101 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
105 /** called via ctx->Driver.NewTextureObject() */
106 static struct gl_texture_object
*
107 st_NewTextureObject(GLcontext
* ctx
, GLuint name
, GLenum target
)
109 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
111 DBG("%s\n", __FUNCTION__
);
112 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
117 /** called via ctx->Driver.DeleteTextureObject() */
119 st_DeleteTextureObject(GLcontext
*ctx
,
120 struct gl_texture_object
*texObj
)
122 struct st_context
*st
= st_context(ctx
);
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
!= 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
= 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 resource binding bitmask for the given format.
214 default_bindings(struct st_context
*st
, enum pipe_format format
)
216 struct pipe_screen
*screen
= st
->pipe
->screen
;
217 const unsigned target
= PIPE_TEXTURE_2D
;
218 const unsigned geom
= 0x0;
221 if (util_format_is_depth_or_stencil(format
))
222 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_DEPTH_STENCIL
;
224 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_RENDER_TARGET
;
226 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
, geom
))
229 return PIPE_BIND_SAMPLER_VIEW
;
233 /** Return number of image dimensions (1, 2 or 3) for a texture target. */
235 get_texture_dims(GLenum target
)
239 case GL_TEXTURE_1D_ARRAY_EXT
:
242 case GL_TEXTURE_CUBE_MAP_ARB
:
243 case GL_TEXTURE_RECTANGLE_NV
:
244 case GL_TEXTURE_2D_ARRAY_EXT
:
249 assert(0 && "invalid texture target in get_texture_dims()");
256 * Try to allocate a pipe_resource object for the given st_texture_object.
258 * We use the given st_texture_image as a clue to determine the size of the
259 * mipmap image at level=0.
261 * \return GL_TRUE for success, GL_FALSE if out of memory.
264 guess_and_alloc_texture(struct st_context
*st
,
265 struct st_texture_object
*stObj
,
266 const struct st_texture_image
*stImage
)
268 const GLuint dims
= get_texture_dims(stObj
->base
.Target
);
269 GLuint level
, lastLevel
, width
, height
, depth
;
271 enum pipe_format fmt
;
273 DBG("%s\n", __FUNCTION__
);
277 level
= stImage
->level
;
278 width
= stImage
->base
.Width2
; /* size w/out border */
279 height
= stImage
->base
.Height2
;
280 depth
= stImage
->base
.Depth2
;
286 /* Depending on the image's size, we can't always make a guess here.
289 if ( (dims
>= 1 && width
== 1) ||
290 (dims
>= 2 && height
== 1) ||
291 (dims
>= 3 && depth
== 1) ) {
292 /* we can't determine the image size at level=0 */
293 stObj
->width0
= stObj
->height0
= stObj
->depth0
= 0;
294 /* this is not an out of memory error */
299 /* grow the image size until we hit level = 0 */
312 /* At this point, (width x height x depth) is the expected size of
313 * the level=0 mipmap image.
316 /* Guess a reasonable value for lastLevel. With OpenGL we have no
317 * idea how many mipmap levels will be in a texture until we start
318 * to render with it. Make an educated guess here but be prepared
319 * to re-allocating a texture buffer with space for more (or fewer)
320 * mipmap levels later.
322 if ((stObj
->base
.MinFilter
== GL_NEAREST
||
323 stObj
->base
.MinFilter
== GL_LINEAR
||
324 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
325 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
326 !stObj
->base
.GenerateMipmap
&&
327 stImage
->level
== 0) {
328 /* only alloc space for a single mipmap level */
332 /* alloc space for a full mipmap */
333 GLuint l2width
= util_logbase2(width
);
334 GLuint l2height
= util_logbase2(height
);
335 GLuint l2depth
= util_logbase2(depth
);
336 lastLevel
= MAX2(MAX2(l2width
, l2height
), l2depth
);
339 /* Save the level=0 dimensions */
340 stObj
->width0
= width
;
341 stObj
->height0
= height
;
342 stObj
->depth0
= depth
;
344 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
);
346 bindings
= default_bindings(st
, fmt
);
348 stObj
->pt
= st_texture_create(st
,
349 gl_target_to_pipe(stObj
->base
.Target
),
357 DBG("%s returning %d\n", __FUNCTION__
, (stObj
->pt
!= NULL
));
359 return stObj
->pt
!= NULL
;
364 * Adjust pixel unpack params and image dimensions to strip off the
366 * Gallium doesn't support texture borders. They've seldem been used
367 * and seldom been implemented correctly anyway.
368 * \param unpackNew returns the new pixel unpack parameters
371 strip_texture_border(GLint border
,
372 GLint
*width
, GLint
*height
, GLint
*depth
,
373 const struct gl_pixelstore_attrib
*unpack
,
374 struct gl_pixelstore_attrib
*unpackNew
)
376 assert(border
> 0); /* sanity check */
378 *unpackNew
= *unpack
;
380 if (unpackNew
->RowLength
== 0)
381 unpackNew
->RowLength
= *width
;
383 if (depth
&& unpackNew
->ImageHeight
== 0)
384 unpackNew
->ImageHeight
= *height
;
386 unpackNew
->SkipPixels
+= border
;
388 unpackNew
->SkipRows
+= border
;
390 unpackNew
->SkipImages
+= border
;
393 *width
= *width
- 2 * border
;
394 if (height
&& *height
>= 3)
395 *height
= *height
- 2 * border
;
396 if (depth
&& *depth
>= 3)
397 *depth
= *depth
- 2 * border
;
402 * Try to do texture compression via rendering. If the Gallium driver
403 * can render into a compressed surface this will allow us to do texture
405 * \return GL_TRUE for success, GL_FALSE for failure
408 compress_with_blit(GLcontext
* ctx
,
409 GLenum target
, GLint level
,
410 GLint xoffset
, GLint yoffset
, GLint zoffset
,
411 GLint width
, GLint height
, GLint depth
,
412 GLenum format
, GLenum type
, const void *pixels
,
413 const struct gl_pixelstore_attrib
*unpack
,
414 struct gl_texture_image
*texImage
)
416 const GLuint dstImageOffsets
[1] = {0};
417 struct st_texture_image
*stImage
= st_texture_image(texImage
);
418 struct st_context
*st
= st_context(ctx
);
419 struct pipe_context
*pipe
= st
->pipe
;
420 struct pipe_screen
*screen
= pipe
->screen
;
421 gl_format mesa_format
;
422 struct pipe_resource templ
;
423 struct pipe_resource
*src_tex
;
424 struct pipe_sampler_view view_templ
;
425 struct pipe_sampler_view
*src_view
;
426 struct pipe_surface
*dst_surface
;
427 struct pipe_transfer
*tex_xfer
;
431 /* XXX: Can this happen? Should we assert? */
435 /* get destination surface (in the compressed texture) */
436 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
437 stImage
->face
, stImage
->level
, 0,
440 /* can't render into this format (or other problem) */
444 /* Choose format for the temporary RGBA texture image.
446 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
451 /* Create the temporary source texture
453 memset(&templ
, 0, sizeof(templ
));
454 templ
.target
= st
->internal_target
;
455 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
);
456 templ
.width0
= width
;
457 templ
.height0
= height
;
459 templ
.last_level
= 0;
460 templ
.usage
= PIPE_USAGE_DEFAULT
;
461 templ
.bind
= PIPE_BIND_SAMPLER_VIEW
;
462 src_tex
= screen
->resource_create(screen
, &templ
);
467 /* Put user's tex data into the temporary texture
469 tex_xfer
= pipe_get_transfer(st_context(ctx
)->pipe
, src_tex
,
470 0, 0, 0, /* face, level are zero */
472 0, 0, width
, height
); /* x, y, w, h */
473 map
= pipe_transfer_map(pipe
, tex_xfer
);
475 _mesa_texstore(ctx
, 2, GL_RGBA
, mesa_format
,
477 0, 0, 0, /* dest x/y/z offset */
478 tex_xfer
->stride
, /* dest row stride (bytes) */
479 dstImageOffsets
, /* image offsets (for 3D only) */
480 width
, height
, 1, /* size */
481 format
, type
, /* source format/type */
482 pixels
, /* source data */
483 unpack
); /* source data packing */
485 pipe_transfer_unmap(pipe
, tex_xfer
);
486 pipe
->transfer_destroy(pipe
, tex_xfer
);
488 /* Create temporary sampler view */
489 u_sampler_view_default_template(&view_templ
,
492 src_view
= pipe
->create_sampler_view(pipe
, src_tex
, &view_templ
);
495 /* copy / compress image */
496 util_blit_pixels_tex(st
->blit
,
497 src_view
, /* sampler view (src) */
498 0, 0, /* src x0, y0 */
499 width
, height
, /* src x1, y1 */
500 dst_surface
, /* pipe_surface (dst) */
501 xoffset
, yoffset
, /* dst x0, y0 */
502 xoffset
+ width
, /* dst x1 */
503 yoffset
+ height
, /* dst y1 */
505 PIPE_TEX_MIPFILTER_NEAREST
);
507 pipe_surface_reference(&dst_surface
, NULL
);
508 pipe_resource_reference(&src_tex
, NULL
);
509 pipe_sampler_view_reference(&src_view
, NULL
);
516 * Do glTexImage1/2/3D().
519 st_TexImage(GLcontext
* ctx
,
521 GLenum target
, GLint level
,
522 GLint internalFormat
,
523 GLint width
, GLint height
, GLint depth
,
525 GLenum format
, GLenum type
, const void *pixels
,
526 const struct gl_pixelstore_attrib
*unpack
,
527 struct gl_texture_object
*texObj
,
528 struct gl_texture_image
*texImage
,
529 GLsizei imageSize
, GLboolean compressed_src
)
531 struct st_context
*st
= st_context(ctx
);
532 struct pipe_screen
*screen
= st
->pipe
->screen
;
533 struct st_texture_object
*stObj
= st_texture_object(texObj
);
534 struct st_texture_image
*stImage
= st_texture_image(texImage
);
535 GLuint dstRowStride
= 0;
536 struct gl_pixelstore_attrib unpackNB
;
537 enum pipe_transfer_usage transfer_usage
= 0;
539 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
540 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
542 /* The Mesa/Gallium state tracker does not implement the imaging extensions
543 * such as convolution.
545 assert(!ctx
->Extensions
.ARB_imaging
);
546 assert(!ctx
->Extensions
.EXT_convolution
);
548 /* switch to "normal" */
549 if (stObj
->surface_based
) {
550 _mesa_clear_texture_object(ctx
, texObj
);
551 pipe_resource_reference(&stObj
->pt
, NULL
);
553 /* oops, need to init this image again */
554 _mesa_init_teximage_fields(ctx
, target
, texImage
,
555 width
, height
, depth
, border
, internalFormat
);
556 _mesa_choose_texture_format(ctx
, texObj
, texImage
, target
, level
,
557 internalFormat
, format
, type
);
559 stObj
->surface_based
= GL_FALSE
;
562 /* gallium does not support texture borders, strip it off */
564 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
566 texImage
->Width
= width
;
567 texImage
->Height
= height
;
568 texImage
->Depth
= depth
;
569 texImage
->Border
= 0;
573 assert(texImage
->Width
== width
);
574 assert(texImage
->Height
== height
);
575 assert(texImage
->Depth
== depth
);
578 stImage
->face
= _mesa_tex_target_to_face(target
);
579 stImage
->level
= level
;
581 _mesa_set_fetch_functions(texImage
, dims
);
583 /* Release the reference to a potentially orphaned buffer.
584 * Release any old malloced memory.
587 pipe_resource_reference(&stImage
->pt
, NULL
);
588 assert(!texImage
->Data
);
590 else if (texImage
->Data
) {
591 _mesa_align_free(texImage
->Data
);
595 * See if the new image is somehow incompatible with the existing
596 * mipmap. If so, free the old mipmap.
599 if (level
> (GLint
) stObj
->pt
->last_level
||
600 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
601 stImage
->face
, stImage
->level
)) {
603 pipe_resource_reference(&stObj
->pt
, NULL
);
605 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
609 if (width
== 0 || height
== 0 || depth
== 0) {
610 /* stop after freeing old image */
615 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
616 /* Probably out of memory.
617 * Try flushing any pending rendering, then retry.
620 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
621 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
627 assert(!stImage
->pt
);
629 /* Check if this texture image can live inside the texture object's buffer.
630 * If so, store the image there. Otherwise the image will temporarily live
634 st_texture_match_image(stObj
->pt
, &stImage
->base
,
635 stImage
->face
, stImage
->level
)) {
637 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
642 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
644 /* Pixel data may come from regular user memory or a PBO. For the later,
645 * do bounds checking and map the PBO to read pixels data from it.
647 * XXX we should try to use a GPU-accelerated path to copy the image data
648 * from the PBO to the texture.
650 if (compressed_src
) {
651 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
653 "glCompressedTexImage");
656 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
658 pixels
, unpack
, "glTexImage");
661 /* See if we can do texture compression with a blit/render.
663 if (!compressed_src
&&
665 _mesa_is_format_compressed(texImage
->TexFormat
) &&
666 screen
->is_format_supported(screen
,
668 stImage
->pt
->target
, 0,
669 PIPE_BIND_RENDER_TARGET
, 0)) {
673 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
674 format
, type
, pixels
, unpack
, texImage
)) {
680 * Prepare to store the texture data. Either map the gallium texture buffer
681 * memory or malloc space for it.
684 /* Store the image in the gallium texture memory buffer */
685 if (format
== GL_DEPTH_COMPONENT
&&
686 util_format_is_depth_and_stencil(stImage
->pt
->format
))
687 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
689 transfer_usage
= PIPE_TRANSFER_WRITE
;
691 texImage
->Data
= st_texture_image_map(st
, stImage
, 0,
692 transfer_usage
, 0, 0, width
, height
);
693 if(stImage
->transfer
)
694 dstRowStride
= stImage
->transfer
->stride
;
697 /* Allocate regular memory and store the image there temporarily. */
698 GLuint imageSize
= _mesa_format_image_size(texImage
->TexFormat
,
699 width
, height
, depth
);
700 dstRowStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
702 texImage
->Data
= _mesa_align_malloc(imageSize
, 16);
705 if (!texImage
->Data
) {
706 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
711 /* We've allocated texture memory, but have no pixel data - all done. */
715 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
716 width
, height
, depth
, width
, dstRowStride
);
718 /* Copy user texture image into the texture buffer.
720 if (compressed_src
) {
721 const GLuint srcRowStride
=
722 _mesa_format_row_stride(texImage
->TexFormat
, width
);
723 if (dstRowStride
== srcRowStride
) {
724 memcpy(texImage
->Data
, pixels
, imageSize
);
727 char *dst
= texImage
->Data
;
728 const char *src
= pixels
;
729 GLuint i
, bw
, bh
, lines
;
730 _mesa_get_format_block_size(texImage
->TexFormat
, &bw
, &bh
);
731 lines
= (height
+ bh
- 1) / bh
;
733 for (i
= 0; i
< lines
; ++i
) {
734 memcpy(dst
, src
, srcRowStride
);
741 const GLuint srcImageStride
=
742 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
744 const GLubyte
*src
= (const GLubyte
*) pixels
;
746 for (i
= 0; i
< depth
; i
++) {
747 if (!_mesa_texstore(ctx
, dims
,
748 texImage
->_BaseFormat
,
751 0, 0, 0, /* dstX/Y/Zoffset */
753 texImage
->ImageOffsets
,
755 format
, type
, src
, unpack
)) {
756 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
759 if (stImage
->pt
&& i
+ 1 < depth
) {
760 /* unmap this slice */
761 st_texture_image_unmap(st
, stImage
);
762 /* map next slice of 3D texture */
763 texImage
->Data
= st_texture_image_map(st
, stImage
, i
+ 1,
764 transfer_usage
, 0, 0,
766 src
+= srcImageStride
;
772 _mesa_unmap_teximage_pbo(ctx
, unpack
);
774 if (stImage
->pt
&& texImage
->Data
) {
775 st_texture_image_unmap(st
, stImage
);
776 texImage
->Data
= NULL
;
782 st_TexImage3D(GLcontext
* ctx
,
783 GLenum target
, GLint level
,
784 GLint internalFormat
,
785 GLint width
, GLint height
, GLint depth
,
787 GLenum format
, GLenum type
, const void *pixels
,
788 const struct gl_pixelstore_attrib
*unpack
,
789 struct gl_texture_object
*texObj
,
790 struct gl_texture_image
*texImage
)
792 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
793 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
799 st_TexImage2D(GLcontext
* ctx
,
800 GLenum target
, GLint level
,
801 GLint internalFormat
,
802 GLint width
, GLint height
, GLint border
,
803 GLenum format
, GLenum type
, const void *pixels
,
804 const struct gl_pixelstore_attrib
*unpack
,
805 struct gl_texture_object
*texObj
,
806 struct gl_texture_image
*texImage
)
808 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
809 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
814 st_TexImage1D(GLcontext
* ctx
,
815 GLenum target
, GLint level
,
816 GLint internalFormat
,
817 GLint width
, GLint border
,
818 GLenum format
, GLenum type
, const void *pixels
,
819 const struct gl_pixelstore_attrib
*unpack
,
820 struct gl_texture_object
*texObj
,
821 struct gl_texture_image
*texImage
)
823 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
824 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
829 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
830 GLint internalFormat
,
831 GLint width
, GLint height
, GLint border
,
832 GLsizei imageSize
, const GLvoid
*data
,
833 struct gl_texture_object
*texObj
,
834 struct gl_texture_image
*texImage
)
836 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
837 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
843 * glGetTexImage() helper: decompress a compressed texture by rendering
844 * a textured quad. Store the results in the user's buffer.
847 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
848 GLenum format
, GLenum type
, GLvoid
*pixels
,
849 struct gl_texture_object
*texObj
,
850 struct gl_texture_image
*texImage
)
852 struct st_context
*st
= st_context(ctx
);
853 struct pipe_context
*pipe
= st
->pipe
;
854 struct pipe_screen
*screen
= pipe
->screen
;
855 struct st_texture_image
*stImage
= st_texture_image(texImage
);
856 struct st_texture_object
*stObj
= st_texture_object(texObj
);
857 struct pipe_sampler_view
*src_view
=
858 st_get_texture_sampler_view(stObj
, pipe
);
859 const GLuint width
= texImage
->Width
;
860 const GLuint height
= texImage
->Height
;
861 struct pipe_surface
*dst_surface
;
862 struct pipe_resource
*dst_texture
;
863 struct pipe_transfer
*tex_xfer
;
864 unsigned bind
= (PIPE_BIND_RENDER_TARGET
| /* util_blit may choose to render */
865 PIPE_BIND_TRANSFER_READ
);
867 /* create temp / dest surface */
868 if (!util_create_rgba_surface(screen
, width
, height
, bind
,
869 &dst_texture
, &dst_surface
)) {
870 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
871 "in decompress_with_blit()");
875 /* blit/render/decompress */
876 util_blit_pixels_tex(st
->blit
,
877 src_view
, /* pipe_resource (src) */
878 0, 0, /* src x0, y0 */
879 width
, height
, /* src x1, y1 */
880 dst_surface
, /* pipe_surface (dst) */
881 0, 0, /* dst x0, y0 */
882 width
, height
, /* dst x1, y1 */
884 PIPE_TEX_MIPFILTER_NEAREST
);
886 /* map the dst_surface so we can read from it */
887 tex_xfer
= pipe_get_transfer(st_context(ctx
)->pipe
,
888 dst_texture
, 0, 0, 0,
890 0, 0, width
, height
);
892 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
894 /* copy/pack data into user buffer */
895 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
897 const uint bytesPerRow
= width
* util_format_get_blocksize(stImage
->pt
->format
);
898 ubyte
*map
= pipe_transfer_map(pipe
, tex_xfer
);
900 for (row
= 0; row
< height
; row
++) {
901 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
902 height
, format
, type
, row
, 0);
903 memcpy(dest
, map
, bytesPerRow
);
904 map
+= tex_xfer
->stride
;
906 pipe_transfer_unmap(pipe
, tex_xfer
);
909 /* format translation via floats */
911 for (row
= 0; row
< height
; row
++) {
912 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
913 GLfloat rgba
[4 * MAX_WIDTH
];
914 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
915 height
, format
, type
, row
, 0);
917 if (ST_DEBUG
& DEBUG_FALLBACK
)
918 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
920 /* get float[4] rgba row from surface */
921 pipe_get_tile_rgba(pipe
, tex_xfer
, 0, row
, width
, 1, rgba
);
923 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
924 type
, dest
, &ctx
->Pack
, transferOps
);
928 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
930 pipe
->transfer_destroy(pipe
, tex_xfer
);
932 /* destroy the temp / dest surface */
933 util_destroy_rgba_surface(dst_texture
, dst_surface
);
939 * Need to map texture image into memory before copying image data,
943 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
944 GLenum format
, GLenum type
, GLvoid
* pixels
,
945 struct gl_texture_object
*texObj
,
946 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
948 struct st_context
*st
= st_context(ctx
);
949 struct st_texture_image
*stImage
= st_texture_image(texImage
);
950 const GLuint dstImageStride
=
951 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
957 util_format_is_s3tc(stImage
->pt
->format
) &&
959 /* Need to decompress the texture.
960 * We'll do this by rendering a textured quad.
961 * Note that we only expect RGBA formats (no Z/depth formats).
963 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
970 /* Image is stored in hardware format in a buffer managed by the
971 * kernel. Need to explicitly map and unmap it.
973 texImage
->Data
= st_texture_image_map(st
, stImage
, 0,
974 PIPE_TRANSFER_READ
, 0, 0,
976 stImage
->base
.Height
);
977 /* compute stride in texels from stride in bytes */
978 texImage
->RowStride
= stImage
->transfer
->stride
979 * util_format_get_blockwidth(stImage
->pt
->format
)
980 / util_format_get_blocksize(stImage
->pt
->format
);
983 /* Otherwise, the image should actually be stored in
984 * texImage->Data. This is pretty confusing for
985 * everybody, I'd much prefer to separate the two functions of
986 * texImage->Data - storage for texture images in main memory
987 * and access (ie mappings) of images. In other words, we'd
988 * create a new texImage->Map field and leave Data simply for
991 assert(texImage
->Data
);
994 depth
= texImage
->Depth
;
997 dest
= (GLubyte
*) pixels
;
999 for (i
= 0; i
< depth
; i
++) {
1000 if (compressed_dst
) {
1001 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
1005 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
1009 if (stImage
->pt
&& i
+ 1 < depth
) {
1010 /* unmap this slice */
1011 st_texture_image_unmap(st
, stImage
);
1012 /* map next slice of 3D texture */
1013 texImage
->Data
= st_texture_image_map(st
, stImage
, i
+ 1,
1014 PIPE_TRANSFER_READ
, 0, 0,
1015 stImage
->base
.Width
,
1016 stImage
->base
.Height
);
1017 dest
+= dstImageStride
;
1021 texImage
->Depth
= depth
;
1025 st_texture_image_unmap(st
, stImage
);
1026 texImage
->Data
= NULL
;
1032 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
1033 GLenum format
, GLenum type
, GLvoid
* pixels
,
1034 struct gl_texture_object
*texObj
,
1035 struct gl_texture_image
*texImage
)
1037 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
1043 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
1045 struct gl_texture_object
*texObj
,
1046 struct gl_texture_image
*texImage
)
1048 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1055 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1056 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1057 GLint width
, GLint height
, GLint depth
,
1058 GLenum format
, GLenum type
, const void *pixels
,
1059 const struct gl_pixelstore_attrib
*packing
,
1060 struct gl_texture_object
*texObj
,
1061 struct gl_texture_image
*texImage
)
1063 struct st_context
*st
= st_context(ctx
);
1064 struct pipe_screen
*screen
= st
->pipe
->screen
;
1065 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1066 GLuint dstRowStride
;
1067 const GLuint srcImageStride
=
1068 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1071 /* init to silence warning only: */
1072 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1074 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1075 _mesa_lookup_enum_by_nr(target
),
1076 level
, xoffset
, yoffset
, width
, height
);
1079 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1080 type
, pixels
, packing
, "glTexSubImage2D");
1084 /* See if we can do texture compression with a blit/render.
1086 if (!ctx
->Mesa_DXTn
&&
1087 _mesa_is_format_compressed(texImage
->TexFormat
) &&
1088 screen
->is_format_supported(screen
,
1089 stImage
->pt
->format
,
1090 stImage
->pt
->target
, 0,
1091 PIPE_BIND_RENDER_TARGET
, 0)) {
1092 if (compress_with_blit(ctx
, target
, level
,
1093 xoffset
, yoffset
, zoffset
,
1094 width
, height
, depth
,
1095 format
, type
, pixels
, packing
, texImage
)) {
1100 /* Map buffer if necessary. Need to lock to prevent other contexts
1101 * from uploading the buffer under us.
1104 if (format
== GL_DEPTH_COMPONENT
&&
1105 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1106 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1108 transfer_usage
= PIPE_TRANSFER_WRITE
;
1110 texImage
->Data
= st_texture_image_map(st
, stImage
, zoffset
,
1116 if (!texImage
->Data
) {
1117 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1121 src
= (const GLubyte
*) pixels
;
1122 dstRowStride
= stImage
->transfer
->stride
;
1124 for (i
= 0; i
< depth
; i
++) {
1125 if (!_mesa_texstore(ctx
, dims
, texImage
->_BaseFormat
,
1126 texImage
->TexFormat
,
1130 texImage
->ImageOffsets
,
1132 format
, type
, src
, packing
)) {
1133 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1136 if (stImage
->pt
&& i
+ 1 < depth
) {
1137 /* unmap this slice */
1138 st_texture_image_unmap(st
, stImage
);
1139 /* map next slice of 3D texture */
1140 texImage
->Data
= st_texture_image_map(st
, stImage
,
1145 src
+= srcImageStride
;
1150 _mesa_unmap_teximage_pbo(ctx
, packing
);
1152 if (stImage
->pt
&& texImage
->Data
) {
1153 st_texture_image_unmap(st
, stImage
);
1154 texImage
->Data
= NULL
;
1161 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1162 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1163 GLsizei width
, GLsizei height
, GLsizei depth
,
1164 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1165 const struct gl_pixelstore_attrib
*packing
,
1166 struct gl_texture_object
*texObj
,
1167 struct gl_texture_image
*texImage
)
1169 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1170 width
, height
, depth
, format
, type
,
1171 pixels
, packing
, texObj
, texImage
);
1176 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1177 GLint xoffset
, GLint yoffset
,
1178 GLsizei width
, GLsizei height
,
1179 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1180 const struct gl_pixelstore_attrib
*packing
,
1181 struct gl_texture_object
*texObj
,
1182 struct gl_texture_image
*texImage
)
1184 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1185 width
, height
, 1, format
, type
,
1186 pixels
, packing
, texObj
, texImage
);
1191 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1192 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1193 const GLvoid
* pixels
,
1194 const struct gl_pixelstore_attrib
*packing
,
1195 struct gl_texture_object
*texObj
,
1196 struct gl_texture_image
*texImage
)
1198 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1199 format
, type
, pixels
, packing
, texObj
, texImage
);
1204 st_CompressedTexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1205 GLint xoffset
, GLsizei width
,
1207 GLsizei imageSize
, const GLvoid
*data
,
1208 struct gl_texture_object
*texObj
,
1209 struct gl_texture_image
*texImage
)
1216 st_CompressedTexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1217 GLint xoffset
, GLint yoffset
,
1218 GLsizei width
, GLint height
,
1220 GLsizei imageSize
, const GLvoid
*data
,
1221 struct gl_texture_object
*texObj
,
1222 struct gl_texture_image
*texImage
)
1224 struct st_context
*st
= st_context(ctx
);
1225 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1229 enum pipe_format pformat
;
1232 pformat
= stImage
->pt
->format
;
1234 texImage
->Data
= st_texture_image_map(st
, stImage
, 0,
1235 PIPE_TRANSFER_WRITE
,
1239 srcBlockStride
= util_format_get_stride(pformat
, width
);
1240 dstBlockStride
= stImage
->transfer
->stride
;
1242 assert(stImage
->pt
);
1243 /* TODO find good values for block and strides */
1244 /* TODO also adjust texImage->data for yoffset/xoffset */
1248 if (!texImage
->Data
) {
1249 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1253 assert(xoffset
% util_format_get_blockwidth(pformat
) == 0);
1254 assert(yoffset
% util_format_get_blockheight(pformat
) == 0);
1256 for (y
= 0; y
< height
; y
+= util_format_get_blockheight(pformat
)) {
1257 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1258 const char *src
= (const char*)data
+ srcBlockStride
* util_format_get_nblocksy(pformat
, y
);
1259 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* util_format_get_nblocksy(pformat
, y
);
1260 memcpy(dst
, src
, util_format_get_stride(pformat
, width
));
1264 st_texture_image_unmap(st
, stImage
);
1265 texImage
->Data
= NULL
;
1271 st_CompressedTexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1272 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1273 GLsizei width
, GLint height
, GLint depth
,
1275 GLsizei imageSize
, const GLvoid
*data
,
1276 struct gl_texture_object
*texObj
,
1277 struct gl_texture_image
*texImage
)
1285 * Do a CopyTexSubImage operation using a read transfer from the source,
1286 * a write transfer to the destination and get_tile()/put_tile() to access
1287 * the pixels/texels.
1289 * Note: srcY=0=TOP of renderbuffer
1292 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1293 struct st_renderbuffer
*strb
,
1294 struct st_texture_image
*stImage
,
1296 GLint destX
, GLint destY
, GLint destZ
,
1297 GLint srcX
, GLint srcY
,
1298 GLsizei width
, GLsizei height
)
1300 struct st_context
*st
= st_context(ctx
);
1301 struct pipe_context
*pipe
= st
->pipe
;
1302 struct pipe_transfer
*src_trans
;
1304 enum pipe_transfer_usage transfer_usage
;
1306 if (ST_DEBUG
& DEBUG_FALLBACK
)
1307 debug_printf("%s: fallback processing\n", __FUNCTION__
);
1309 assert(width
<= MAX_WIDTH
);
1311 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1312 srcY
= strb
->Base
.Height
- srcY
- height
;
1315 src_trans
= pipe_get_transfer(st_context(ctx
)->pipe
,
1322 if ((baseFormat
== GL_DEPTH_COMPONENT
||
1323 baseFormat
== GL_DEPTH_STENCIL
) &&
1324 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1325 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1327 transfer_usage
= PIPE_TRANSFER_WRITE
;
1329 texDest
= st_texture_image_map(st
, stImage
, 0, transfer_usage
,
1330 destX
, destY
, width
, height
);
1332 if (baseFormat
== GL_DEPTH_COMPONENT
||
1333 baseFormat
== GL_DEPTH_STENCIL
) {
1334 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1335 ctx
->Pixel
.DepthBias
!= 0.0F
);
1338 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1339 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1348 /* To avoid a large temp memory allocation, do copy row by row */
1349 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1350 uint data
[MAX_WIDTH
];
1351 pipe_get_tile_z(pipe
, src_trans
, 0, srcY
, width
, 1, data
);
1353 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1355 pipe_put_tile_z(pipe
, stImage
->transfer
, 0, row
, width
, 1, data
);
1361 (GLfloat
*) malloc(width
* height
* 4 * sizeof(GLfloat
));
1363 if (tempSrc
&& texDest
) {
1364 const GLint dims
= 2;
1365 const GLint dstRowStride
= stImage
->transfer
->stride
;
1366 struct gl_texture_image
*texImage
= &stImage
->base
;
1367 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1369 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1370 unpack
.Invert
= GL_TRUE
;
1373 /* get float/RGBA image from framebuffer */
1374 /* XXX this usually involves a lot of int/float conversion.
1375 * try to avoid that someday.
1377 pipe_get_tile_rgba(pipe
, src_trans
, 0, 0, width
, height
, tempSrc
);
1379 /* Store into texture memory.
1380 * Note that this does some special things such as pixel transfer
1381 * ops and format conversion. In particular, if the dest tex format
1382 * is actually RGBA but the user created the texture as GL_RGB we
1383 * need to fill-in/override the alpha channel with 1.0.
1385 _mesa_texstore(ctx
, dims
,
1386 texImage
->_BaseFormat
,
1387 texImage
->TexFormat
,
1391 texImage
->ImageOffsets
,
1393 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1397 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1404 st_texture_image_unmap(st
, stImage
);
1405 pipe
->transfer_destroy(pipe
, src_trans
);
1411 * If the format of the src renderbuffer and the format of the dest
1412 * texture are compatible (in terms of blitting), return a TGSI writemask
1413 * to be used during the blit.
1414 * If the src/dest are incompatible, return 0.
1417 compatible_src_dst_formats(GLcontext
*ctx
,
1418 const struct gl_renderbuffer
*src
,
1419 const struct gl_texture_image
*dst
)
1421 /* Get logical base formats for the src and dest.
1422 * That is, use the user-requested formats and not the actual, device-
1424 * For example, the user may have requested an A8 texture but the
1425 * driver may actually be using an RGBA texture format. When we
1426 * copy/blit to that texture, we only want to copy the Alpha channel
1427 * and not the RGB channels.
1429 * Similarly, when the src FBO was created an RGB format may have been
1430 * requested but the driver actually chose an RGBA format. In that case,
1431 * we don't want to copy the undefined Alpha channel to the dest texture
1432 * (it should be 1.0).
1434 const GLenum srcFormat
= _mesa_base_fbo_format(ctx
, src
->InternalFormat
);
1435 const GLenum dstFormat
= _mesa_base_tex_format(ctx
, dst
->InternalFormat
);
1438 * XXX when we have red-only and red/green renderbuffers we'll need
1439 * to add more cases here (or implement a general-purpose routine that
1440 * queries the existance of the R,G,B,A channels in the src and dest).
1442 if (srcFormat
== dstFormat
) {
1443 /* This is the same as matching_base_formats, which should
1444 * always pass, as it did previously.
1446 return TGSI_WRITEMASK_XYZW
;
1448 else if (srcFormat
== GL_RGB
&& dstFormat
== GL_RGBA
) {
1449 /* Make sure that A in the dest is 1. The actual src format
1450 * may be RGBA and have undefined A values.
1452 return TGSI_WRITEMASK_XYZ
;
1454 else if (srcFormat
== GL_RGBA
&& dstFormat
== GL_RGB
) {
1455 /* Make sure that A in the dest is 1. The actual dst format
1456 * may be RGBA and will need A=1 to provide proper alpha values
1457 * when sampled later.
1459 return TGSI_WRITEMASK_XYZ
;
1462 if (ST_DEBUG
& DEBUG_FALLBACK
)
1463 debug_printf("%s failed for src %s, dst %s\n",
1465 _mesa_lookup_enum_by_nr(srcFormat
),
1466 _mesa_lookup_enum_by_nr(dstFormat
));
1477 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1478 * Note that the region to copy has already been clipped so we know we
1479 * won't read from outside the source renderbuffer's bounds.
1481 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1484 st_copy_texsubimage(GLcontext
*ctx
,
1485 GLenum target
, GLint level
,
1486 GLint destX
, GLint destY
, GLint destZ
,
1487 GLint srcX
, GLint srcY
,
1488 GLsizei width
, GLsizei height
)
1490 struct gl_texture_unit
*texUnit
=
1491 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1492 struct gl_texture_object
*texObj
=
1493 _mesa_select_tex_object(ctx
, texUnit
, target
);
1494 struct gl_texture_image
*texImage
=
1495 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1496 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1497 const GLenum texBaseFormat
= texImage
->_BaseFormat
;
1498 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1499 struct st_renderbuffer
*strb
;
1500 struct st_context
*st
= st_context(ctx
);
1501 struct pipe_context
*pipe
= st
->pipe
;
1502 struct pipe_screen
*screen
= pipe
->screen
;
1503 enum pipe_format dest_format
, src_format
;
1504 GLboolean use_fallback
= GL_TRUE
;
1505 GLboolean matching_base_formats
;
1506 GLuint format_writemask
, sample_count
;
1507 struct pipe_surface
*dest_surface
= NULL
;
1508 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1510 /* make sure finalize_textures has been called?
1512 if (0) st_validate_state(st
);
1514 /* determine if copying depth or color data */
1515 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1516 texBaseFormat
== GL_DEPTH_STENCIL
) {
1517 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1520 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1521 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1524 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1525 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1529 sample_count
= strb
->surface
->texture
->nr_samples
;
1530 /* I believe this would be legal, presumably would need to do a resolve
1531 for color, and for depth/stencil spec says to just use one of the
1532 depth/stencil samples per pixel? Need some transfer clarifications. */
1533 assert(sample_count
< 2);
1559 if (width
< 0 || height
< 0)
1564 assert(strb
->surface
);
1565 assert(stImage
->pt
);
1567 src_format
= strb
->surface
->format
;
1568 dest_format
= stImage
->pt
->format
;
1571 * Determine if the src framebuffer and dest texture have the same
1572 * base format. We need this to detect a case such as the framebuffer
1573 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1574 * texture format stores RGBA we need to set A=1 (overriding the
1575 * framebuffer's alpha values). We can't do that with the blit or
1576 * textured-quad paths.
1578 matching_base_formats
=
1579 (_mesa_get_format_base_format(strb
->Base
.Format
) ==
1580 _mesa_get_format_base_format(texImage
->TexFormat
));
1581 format_writemask
= compatible_src_dst_formats(ctx
, &strb
->Base
, texImage
);
1583 if (ctx
->_ImageTransferState
== 0x0) {
1585 if (matching_base_formats
&&
1586 src_format
== dest_format
&&
1589 /* use surface_copy() / blit */
1590 struct pipe_subresource subdst
, subsrc
;
1591 subdst
.face
= stImage
->face
;
1592 subdst
.level
= stImage
->level
;
1593 subsrc
.face
= strb
->surface
->face
;
1594 subsrc
.level
= strb
->surface
->level
;
1596 /* for resource_copy_region(), y=0=top, always */
1597 pipe
->resource_copy_region(pipe
,
1601 destX
, destY
, destZ
,
1605 srcX
, srcY
, strb
->surface
->zslice
,
1608 use_fallback
= GL_FALSE
;
1610 else if (format_writemask
&&
1611 texBaseFormat
!= GL_DEPTH_COMPONENT
&&
1612 texBaseFormat
!= GL_DEPTH_STENCIL
&&
1613 screen
->is_format_supported(screen
, src_format
,
1614 PIPE_TEXTURE_2D
, sample_count
,
1615 PIPE_BIND_SAMPLER_VIEW
,
1617 screen
->is_format_supported(screen
, dest_format
,
1619 PIPE_BIND_RENDER_TARGET
,
1621 /* draw textured quad to do the copy */
1623 struct pipe_subresource subsrc
;
1625 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1626 stImage
->face
, stImage
->level
,
1628 PIPE_BIND_RENDER_TARGET
);
1631 srcY1
= strb
->Base
.Height
- srcY
- height
;
1632 srcY0
= srcY1
+ height
;
1636 srcY1
= srcY0
+ height
;
1638 subsrc
.face
= strb
->surface
->face
;
1639 subsrc
.level
= strb
->surface
->level
;
1641 util_blit_pixels_writemask(st
->blit
,
1645 srcX
+ width
, srcY1
,
1646 strb
->surface
->zslice
,
1649 destX
+ width
, destY
+ height
,
1650 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1652 use_fallback
= GL_FALSE
;
1656 pipe_surface_reference(&dest_surface
, NULL
);
1660 /* software fallback */
1661 fallback_copy_texsubimage(ctx
, target
, level
,
1662 strb
, stImage
, texBaseFormat
,
1663 destX
, destY
, destZ
,
1664 srcX
, srcY
, width
, height
);
1671 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1672 GLenum internalFormat
,
1673 GLint x
, GLint y
, GLsizei width
, GLint border
)
1675 struct gl_texture_unit
*texUnit
=
1676 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1677 struct gl_texture_object
*texObj
=
1678 _mesa_select_tex_object(ctx
, texUnit
, target
);
1679 struct gl_texture_image
*texImage
=
1680 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1682 /* Setup or redefine the texture object, texture and texture
1683 * image. Don't populate yet.
1685 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1687 GL_RGBA
, CHAN_TYPE
, NULL
,
1688 &ctx
->DefaultPacking
, texObj
, texImage
);
1690 st_copy_texsubimage(ctx
, target
, level
,
1691 0, 0, 0, /* destX,Y,Z */
1692 x
, y
, width
, 1); /* src X, Y, size */
1697 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1698 GLenum internalFormat
,
1699 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1702 struct gl_texture_unit
*texUnit
=
1703 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1704 struct gl_texture_object
*texObj
=
1705 _mesa_select_tex_object(ctx
, texUnit
, target
);
1706 struct gl_texture_image
*texImage
=
1707 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1709 /* Setup or redefine the texture object, texture and texture
1710 * image. Don't populate yet.
1712 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1713 width
, height
, border
,
1714 GL_RGBA
, CHAN_TYPE
, NULL
,
1715 &ctx
->DefaultPacking
, texObj
, texImage
);
1717 st_copy_texsubimage(ctx
, target
, level
,
1718 0, 0, 0, /* destX,Y,Z */
1719 x
, y
, width
, height
); /* src X, Y, size */
1724 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1725 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1727 const GLint yoffset
= 0, zoffset
= 0;
1728 const GLsizei height
= 1;
1729 st_copy_texsubimage(ctx
, target
, level
,
1730 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1731 x
, y
, width
, height
); /* src X, Y, size */
1736 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1737 GLint xoffset
, GLint yoffset
,
1738 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1740 const GLint zoffset
= 0;
1741 st_copy_texsubimage(ctx
, target
, level
,
1742 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1743 x
, y
, width
, height
); /* src X, Y, size */
1748 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1749 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1750 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1752 st_copy_texsubimage(ctx
, target
, level
,
1753 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1754 x
, y
, width
, height
); /* src X, Y, size */
1759 * Copy image data from stImage into the texture object 'stObj' at level
1763 copy_image_data_to_texture(struct st_context
*st
,
1764 struct st_texture_object
*stObj
,
1766 struct st_texture_image
*stImage
)
1770 const struct gl_texture_image
*dstImage
=
1771 stObj
->base
.Image
[stImage
->face
][stImage
->level
];
1773 assert(dstImage
->Width
== stImage
->base
.Width
);
1774 assert(dstImage
->Height
== stImage
->base
.Height
);
1775 assert(dstImage
->Depth
== stImage
->base
.Depth
);
1779 /* Copy potentially with the blitter:
1781 st_texture_image_copy(st
->pipe
,
1782 stObj
->pt
, dstLevel
, /* dest texture, level */
1783 stImage
->pt
, stImage
->level
, /* src texture, level */
1786 pipe_resource_reference(&stImage
->pt
, NULL
);
1788 else if (stImage
->base
.Data
) {
1789 st_texture_image_data(st
,
1794 stImage
->base
.RowStride
*
1795 util_format_get_blocksize(stObj
->pt
->format
),
1796 stImage
->base
.RowStride
*
1797 stImage
->base
.Height
*
1798 util_format_get_blocksize(stObj
->pt
->format
));
1799 _mesa_align_free(stImage
->base
.Data
);
1800 stImage
->base
.Data
= NULL
;
1803 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1808 * Called during state validation. When this function is finished,
1809 * the texture object should be ready for rendering.
1810 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1813 st_finalize_texture(GLcontext
*ctx
,
1814 struct pipe_context
*pipe
,
1815 struct gl_texture_object
*tObj
)
1817 struct st_context
*st
= st_context(ctx
);
1818 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1819 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1821 struct st_texture_image
*firstImage
;
1822 enum pipe_format firstImageFormat
;
1824 if (stObj
->base
._Complete
) {
1825 /* The texture is complete and we know exactly how many mipmap levels
1826 * are present/needed. This is conditional because we may be called
1827 * from the st_generate_mipmap() function when the texture object is
1828 * incomplete. In that case, we'll have set stObj->lastLevel before
1831 if (stObj
->base
.MinFilter
== GL_LINEAR
||
1832 stObj
->base
.MinFilter
== GL_NEAREST
)
1833 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1835 stObj
->lastLevel
= stObj
->base
._MaxLevel
;
1838 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1841 /* If both firstImage and stObj point to a texture which can contain
1842 * all active images, favour firstImage. Note that because of the
1843 * completeness requirement, we know that the image dimensions
1846 if (firstImage
->pt
&&
1847 firstImage
->pt
!= stObj
->pt
&&
1848 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1849 pipe_resource_reference(&stObj
->pt
, firstImage
->pt
);
1850 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
1853 /* Find gallium format for the Mesa texture */
1854 firstImageFormat
= st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1856 /* If we already have a gallium texture, check that it matches the texture
1857 * object's format, target, size, num_levels, etc.
1860 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1861 !st_sampler_compat_formats(stObj
->pt
->format
, firstImageFormat
) ||
1862 stObj
->pt
->last_level
< stObj
->lastLevel
||
1863 stObj
->pt
->width0
!= stObj
->width0
||
1864 stObj
->pt
->height0
!= stObj
->height0
||
1865 stObj
->pt
->depth0
!= stObj
->depth0
)
1867 /* The gallium texture does not match the Mesa texture so delete the
1868 * gallium texture now. We'll make a new one below.
1870 pipe_resource_reference(&stObj
->pt
, NULL
);
1871 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
1872 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1876 /* May need to create a new gallium texture:
1879 GLuint bindings
= default_bindings(st
, firstImageFormat
);
1881 stObj
->pt
= st_texture_create(st
,
1882 gl_target_to_pipe(stObj
->base
.Target
),
1891 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1896 /* Pull in any images not in the object's texture:
1898 for (face
= 0; face
< nr_faces
; face
++) {
1900 for (level
= stObj
->base
.BaseLevel
; level
<= stObj
->lastLevel
; level
++) {
1901 struct st_texture_image
*stImage
=
1902 st_texture_image(stObj
->base
.Image
[face
][level
]);
1904 /* Need to import images in main memory or held in other textures.
1906 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1907 copy_image_data_to_texture(st
, stObj
, level
, stImage
);
1917 * Returns pointer to a default/dummy texture.
1918 * This is typically used when the current shader has tex/sample instructions
1919 * but the user has not provided a (any) texture(s).
1921 struct gl_texture_object
*
1922 st_get_default_texture(struct st_context
*st
)
1924 if (!st
->default_texture
) {
1925 static const GLenum target
= GL_TEXTURE_2D
;
1926 GLubyte pixels
[16][16][4];
1927 struct gl_texture_object
*texObj
;
1928 struct gl_texture_image
*texImg
;
1931 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1932 * when attempting to sample incomplete textures.
1934 for (i
= 0; i
< 16; i
++) {
1935 for (j
= 0; j
< 16; j
++) {
1936 pixels
[i
][j
][0] = 0;
1937 pixels
[i
][j
][1] = 0;
1938 pixels
[i
][j
][2] = 0;
1939 pixels
[i
][j
][3] = 255;
1943 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1945 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1947 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1948 16, 16, 1, 0, /* w, h, d, border */
1951 st_TexImage(st
->ctx
, 2, target
,
1952 0, GL_RGBA
, /* level, intformat */
1953 16, 16, 1, 0, /* w, h, d, border */
1954 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1955 &st
->ctx
->DefaultPacking
,
1959 texObj
->MinFilter
= GL_NEAREST
;
1960 texObj
->MagFilter
= GL_NEAREST
;
1961 texObj
->_Complete
= GL_TRUE
;
1963 st
->default_texture
= texObj
;
1965 return st
->default_texture
;
1970 st_init_texture_functions(struct dd_function_table
*functions
)
1972 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1973 functions
->TexImage1D
= st_TexImage1D
;
1974 functions
->TexImage2D
= st_TexImage2D
;
1975 functions
->TexImage3D
= st_TexImage3D
;
1976 functions
->TexSubImage1D
= st_TexSubImage1D
;
1977 functions
->TexSubImage2D
= st_TexSubImage2D
;
1978 functions
->TexSubImage3D
= st_TexSubImage3D
;
1979 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1980 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1981 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1982 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1983 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1984 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1985 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1986 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1987 functions
->GenerateMipmap
= st_generate_mipmap
;
1989 functions
->GetTexImage
= st_GetTexImage
;
1991 /* compressed texture functions */
1992 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1993 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1995 functions
->NewTextureObject
= st_NewTextureObject
;
1996 functions
->NewTextureImage
= st_NewTextureImage
;
1997 functions
->DeleteTexture
= st_DeleteTextureObject
;
1998 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1999 functions
->UpdateTexturePalette
= 0;
2001 functions
->TextureMemCpy
= do_memcpy
;
2003 /* XXX Temporary until we can query pipe's texture sizes */
2004 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;