1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "main/mfeatures.h"
29 #include "main/bufferobj.h"
31 #include "main/convolve.h"
33 #include "main/enums.h"
34 #include "main/fbobject.h"
35 #include "main/formats.h"
36 #include "main/image.h"
37 #include "main/imports.h"
38 #include "main/macros.h"
39 #include "main/mipmap.h"
40 #include "main/texcompress.h"
41 #include "main/texfetch.h"
42 #include "main/texgetimage.h"
43 #include "main/teximage.h"
44 #include "main/texobj.h"
45 #include "main/texstore.h"
47 #include "state_tracker/st_debug.h"
48 #include "state_tracker/st_context.h"
49 #include "state_tracker/st_cb_fbo.h"
50 #include "state_tracker/st_cb_texture.h"
51 #include "state_tracker/st_format.h"
52 #include "state_tracker/st_public.h"
53 #include "state_tracker/st_texture.h"
54 #include "state_tracker/st_gen_mipmap.h"
55 #include "state_tracker/st_inlines.h"
56 #include "state_tracker/st_atom.h"
58 #include "pipe/p_context.h"
59 #include "pipe/p_defines.h"
60 #include "util/u_inlines.h"
61 #include "pipe/p_shader_tokens.h"
62 #include "util/u_tile.h"
63 #include "util/u_blit.h"
64 #include "util/u_format.h"
65 #include "util/u_surface.h"
66 #include "util/u_sampler.h"
67 #include "util/u_math.h"
70 #define DBG if (0) printf
73 static enum pipe_texture_target
74 gl_target_to_pipe(GLenum target
)
78 return PIPE_TEXTURE_1D
;
81 case GL_TEXTURE_RECTANGLE_NV
:
82 return PIPE_TEXTURE_2D
;
85 return PIPE_TEXTURE_3D
;
87 case GL_TEXTURE_CUBE_MAP_ARB
:
88 return PIPE_TEXTURE_CUBE
;
97 /** called via ctx->Driver.NewTextureImage() */
98 static struct gl_texture_image
*
99 st_NewTextureImage(GLcontext
* ctx
)
101 DBG("%s\n", __FUNCTION__
);
103 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
107 /** called via ctx->Driver.NewTextureObject() */
108 static struct gl_texture_object
*
109 st_NewTextureObject(GLcontext
* ctx
, GLuint name
, GLenum target
)
111 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
113 DBG("%s\n", __FUNCTION__
);
114 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
119 /** called via ctx->Driver.DeleteTextureImage() */
121 st_DeleteTextureObject(GLcontext
*ctx
,
122 struct gl_texture_object
*texObj
)
124 struct st_texture_object
*stObj
= st_texture_object(texObj
);
126 pipe_texture_reference(&stObj
->pt
, NULL
);
127 if (stObj
->sampler_view
) {
128 if (stObj
->sampler_view
->context
!= ctx
->st
->pipe
) {
129 /* Take "ownership" of this texture sampler view by setting
130 * its context pointer to this context. This avoids potential
131 * crashes when the texture object is shared among contexts
132 * and the original/owner context has already been destroyed.
134 stObj
->sampler_view
->context
= ctx
->st
->pipe
;
136 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
138 _mesa_delete_texture_object(ctx
, texObj
);
142 /** called via ctx->Driver.FreeTexImageData() */
144 st_FreeTextureImageData(GLcontext
* ctx
, struct gl_texture_image
*texImage
)
146 struct st_texture_image
*stImage
= st_texture_image(texImage
);
148 DBG("%s\n", __FUNCTION__
);
151 pipe_texture_reference(&stImage
->pt
, NULL
);
154 if (texImage
->Data
) {
155 _mesa_align_free(texImage
->Data
);
156 texImage
->Data
= NULL
;
162 * From linux kernel i386 header files, copes with odd sizes better
163 * than COPY_DWORDS would:
164 * XXX Put this in src/mesa/main/imports.h ???
166 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
168 __memcpy(void *to
, const void *from
, size_t n
)
171 __asm__
__volatile__("rep ; movsl\n\t"
175 "1:\ttestb $1,%b4\n\t"
177 "movsb\n" "2:":"=&c"(d0
), "=&D"(d1
), "=&S"(d2
)
178 :"0"(n
/ 4), "q"(n
), "1"((long) to
), "2"((long) from
)
183 #define __memcpy(a,b,c) memcpy(a,b,c)
188 * The system memcpy (at least on ubuntu 5.10) has problems copying
189 * to agp (writecombined) memory from a source which isn't 64-byte
190 * aligned - there is a 4x performance falloff.
192 * The x86 __memcpy is immune to this but is slightly slower
193 * (10%-ish) than the system memcpy.
195 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
196 * isn't much faster than x86_memcpy for agp copies.
198 * TODO: switch dynamically.
201 do_memcpy(void *dest
, const void *src
, size_t n
)
203 if ((((unsigned long) src
) & 63) || (((unsigned long) dest
) & 63)) {
204 return __memcpy(dest
, src
, n
);
207 return memcpy(dest
, src
, n
);
212 * Return default texture usage bitmask for the given texture format.
215 default_usage(enum pipe_format fmt
)
217 GLuint usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
218 if (util_format_is_depth_or_stencil(fmt
))
219 usage
|= PIPE_TEXTURE_USAGE_DEPTH_STENCIL
;
221 usage
|= PIPE_TEXTURE_USAGE_RENDER_TARGET
;
227 * Allocate a pipe_texture object for the given st_texture_object using
228 * the given st_texture_image to guess the mipmap size/levels.
231 * Otherwise, store it in memory if (Border != 0) or (any dimension ==
234 * Otherwise, if max_level >= level >= min_level, create texture with
235 * space for images from min_level down to max_level.
237 * Otherwise, create texture with space for images from (level 0)..(1x1).
238 * Consider pruning this texture at a validation if the saving is worth it.
241 guess_and_alloc_texture(struct st_context
*st
,
242 struct st_texture_object
*stObj
,
243 const struct st_texture_image
*stImage
)
247 GLuint width
= stImage
->base
.Width2
; /* size w/out border */
248 GLuint height
= stImage
->base
.Height2
;
249 GLuint depth
= stImage
->base
.Depth2
;
251 enum pipe_format fmt
;
253 DBG("%s\n", __FUNCTION__
);
258 (GLint
) stImage
->level
> stObj
->base
.BaseLevel
&&
259 (stImage
->base
.Width
== 1 ||
260 (stObj
->base
.Target
!= GL_TEXTURE_1D
&&
261 stImage
->base
.Height
== 1) ||
262 (stObj
->base
.Target
== GL_TEXTURE_3D
&&
263 stImage
->base
.Depth
== 1)))
266 /* If this image disrespects BaseLevel, allocate from level zero.
267 * Usually BaseLevel == 0, so it's unlikely to happen.
269 if ((GLint
) stImage
->level
< stObj
->base
.BaseLevel
)
272 firstLevel
= stObj
->base
.BaseLevel
;
275 /* Figure out image dimensions at start level.
277 for (i
= stImage
->level
; i
> firstLevel
; i
--) {
286 if (width
== 0 || height
== 0 || depth
== 0) {
287 /* no texture needed */
291 /* Guess a reasonable value for lastLevel. This is probably going
292 * to be wrong fairly often and might mean that we have to look at
293 * resizable buffers, or require that buffers implement lazy
294 * pagetable arrangements.
296 if ((stObj
->base
.MinFilter
== GL_NEAREST
||
297 stObj
->base
.MinFilter
== GL_LINEAR
||
298 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
299 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
300 !stObj
->base
.GenerateMipmap
&&
301 stImage
->level
== firstLevel
) {
302 /* only alloc space for a single mipmap level */
303 lastLevel
= firstLevel
;
306 /* alloc space for a full mipmap */
307 GLuint l2width
= util_logbase2(width
);
308 GLuint l2height
= util_logbase2(height
);
309 GLuint l2depth
= util_logbase2(depth
);
310 lastLevel
= firstLevel
+ MAX2(MAX2(l2width
, l2height
), l2depth
);
313 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
);
315 usage
= default_usage(fmt
);
317 stObj
->pt
= st_texture_create(st
,
318 gl_target_to_pipe(stObj
->base
.Target
),
326 stObj
->pipe
= st
->pipe
;
328 DBG("%s - success\n", __FUNCTION__
);
333 * Adjust pixel unpack params and image dimensions to strip off the
335 * Gallium doesn't support texture borders. They've seldem been used
336 * and seldom been implemented correctly anyway.
337 * \param unpackNew returns the new pixel unpack parameters
340 strip_texture_border(GLint border
,
341 GLint
*width
, GLint
*height
, GLint
*depth
,
342 const struct gl_pixelstore_attrib
*unpack
,
343 struct gl_pixelstore_attrib
*unpackNew
)
345 assert(border
> 0); /* sanity check */
347 *unpackNew
= *unpack
;
349 if (unpackNew
->RowLength
== 0)
350 unpackNew
->RowLength
= *width
;
352 if (depth
&& unpackNew
->ImageHeight
== 0)
353 unpackNew
->ImageHeight
= *height
;
355 unpackNew
->SkipPixels
+= border
;
357 unpackNew
->SkipRows
+= border
;
359 unpackNew
->SkipImages
+= border
;
362 *width
= *width
- 2 * border
;
363 if (height
&& *height
>= 3)
364 *height
= *height
- 2 * border
;
365 if (depth
&& *depth
>= 3)
366 *depth
= *depth
- 2 * border
;
371 * Try to do texture compression via rendering. If the Gallium driver
372 * can render into a compressed surface this will allow us to do texture
374 * \return GL_TRUE for success, GL_FALSE for failure
377 compress_with_blit(GLcontext
* ctx
,
378 GLenum target
, GLint level
,
379 GLint xoffset
, GLint yoffset
, GLint zoffset
,
380 GLint width
, GLint height
, GLint depth
,
381 GLenum format
, GLenum type
, const void *pixels
,
382 const struct gl_pixelstore_attrib
*unpack
,
383 struct gl_texture_image
*texImage
)
385 const GLuint dstImageOffsets
[1] = {0};
386 struct st_texture_image
*stImage
= st_texture_image(texImage
);
387 struct pipe_context
*pipe
= ctx
->st
->pipe
;
388 struct pipe_screen
*screen
= pipe
->screen
;
389 gl_format mesa_format
;
390 struct pipe_texture templ
;
391 struct pipe_texture
*src_tex
;
392 struct pipe_sampler_view view_templ
;
393 struct pipe_sampler_view
*src_view
;
394 struct pipe_surface
*dst_surface
;
395 struct pipe_transfer
*tex_xfer
;
399 /* XXX: Can this happen? Should we assert? */
403 /* get destination surface (in the compressed texture) */
404 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
405 stImage
->face
, stImage
->level
, 0,
406 PIPE_BUFFER_USAGE_GPU_WRITE
);
408 /* can't render into this format (or other problem) */
412 /* Choose format for the temporary RGBA texture image.
414 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
419 /* Create the temporary source texture
421 memset(&templ
, 0, sizeof(templ
));
422 templ
.target
= PIPE_TEXTURE_2D
;
423 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
);
424 templ
.width0
= width
;
425 templ
.height0
= height
;
427 templ
.last_level
= 0;
428 templ
.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
429 src_tex
= screen
->texture_create(screen
, &templ
);
434 /* Put user's tex data into the temporary texture
436 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
437 0, 0, 0, /* face, level are zero */
439 0, 0, width
, height
); /* x, y, w, h */
440 map
= pipe
->transfer_map(pipe
, tex_xfer
);
442 _mesa_texstore(ctx
, 2, GL_RGBA
, mesa_format
,
444 0, 0, 0, /* dest x/y/z offset */
445 tex_xfer
->stride
, /* dest row stride (bytes) */
446 dstImageOffsets
, /* image offsets (for 3D only) */
447 width
, height
, 1, /* size */
448 format
, type
, /* source format/type */
449 pixels
, /* source data */
450 unpack
); /* source data packing */
452 pipe
->transfer_unmap(pipe
, tex_xfer
);
453 pipe
->tex_transfer_destroy(pipe
, tex_xfer
);
455 /* Create temporary sampler view */
456 u_sampler_view_default_template(&view_templ
,
459 src_view
= pipe
->create_sampler_view(pipe
, src_tex
, &view_templ
);
462 /* copy / compress image */
463 util_blit_pixels_tex(ctx
->st
->blit
,
464 src_view
, /* sampler view (src) */
465 0, 0, /* src x0, y0 */
466 width
, height
, /* src x1, y1 */
467 dst_surface
, /* pipe_surface (dst) */
468 xoffset
, yoffset
, /* dst x0, y0 */
469 xoffset
+ width
, /* dst x1 */
470 yoffset
+ height
, /* dst y1 */
472 PIPE_TEX_MIPFILTER_NEAREST
);
474 pipe_surface_reference(&dst_surface
, NULL
);
475 pipe_texture_reference(&src_tex
, NULL
);
476 pipe_sampler_view_reference(&src_view
, NULL
);
483 * Do glTexImage1/2/3D().
486 st_TexImage(GLcontext
* ctx
,
488 GLenum target
, GLint level
,
489 GLint internalFormat
,
490 GLint width
, GLint height
, GLint depth
,
492 GLenum format
, GLenum type
, const void *pixels
,
493 const struct gl_pixelstore_attrib
*unpack
,
494 struct gl_texture_object
*texObj
,
495 struct gl_texture_image
*texImage
,
496 GLsizei imageSize
, GLboolean compressed_src
)
498 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
499 struct st_texture_object
*stObj
= st_texture_object(texObj
);
500 struct st_texture_image
*stImage
= st_texture_image(texImage
);
501 GLint postConvWidth
, postConvHeight
;
502 GLint texelBytes
, sizeInBytes
;
503 GLuint dstRowStride
= 0;
504 struct gl_pixelstore_attrib unpackNB
;
505 enum pipe_transfer_usage transfer_usage
= 0;
507 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
508 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
510 /* switch to "normal" */
511 if (stObj
->surface_based
) {
512 _mesa_clear_texture_object(ctx
, texObj
);
513 stObj
->surface_based
= GL_FALSE
;
516 /* gallium does not support texture borders, strip it off */
518 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
520 texImage
->Width
= width
;
521 texImage
->Height
= height
;
522 texImage
->Depth
= depth
;
523 texImage
->Border
= 0;
527 postConvWidth
= width
;
528 postConvHeight
= height
;
530 stImage
->face
= _mesa_tex_target_to_face(target
);
531 stImage
->level
= level
;
534 if (ctx
->_ImageTransferState
& IMAGE_CONVOLUTION_BIT
) {
535 _mesa_adjust_image_for_convolution(ctx
, dims
, &postConvWidth
,
540 _mesa_set_fetch_functions(texImage
, dims
);
542 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
543 /* must be a compressed format */
547 texelBytes
= _mesa_get_format_bytes(texImage
->TexFormat
);
549 /* Minimum pitch of 32 bytes */
550 if (postConvWidth
* texelBytes
< 32) {
551 postConvWidth
= 32 / texelBytes
;
552 texImage
->RowStride
= postConvWidth
;
555 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
556 /*assert(texImage->RowStride == postConvWidth);*/
559 /* Release the reference to a potentially orphaned buffer.
560 * Release any old malloced memory.
563 pipe_texture_reference(&stImage
->pt
, NULL
);
564 assert(!texImage
->Data
);
566 else if (texImage
->Data
) {
567 _mesa_align_free(texImage
->Data
);
571 * See if the new image is somehow incompatible with the existing
572 * mipmap. If so, free the old mipmap.
575 if (stObj
->teximage_realloc
||
576 level
> (GLint
) stObj
->pt
->last_level
||
577 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
578 stImage
->face
, stImage
->level
)) {
580 pipe_texture_reference(&stObj
->pt
, NULL
);
582 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
583 stObj
->teximage_realloc
= FALSE
;
587 if (width
== 0 || height
== 0 || depth
== 0) {
588 /* stop after freeing old image */
593 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
595 /* Probably out of memory.
596 * Try flushing any pending rendering, then retry.
599 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
601 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
607 assert(!stImage
->pt
);
610 st_texture_match_image(stObj
->pt
, &stImage
->base
,
611 stImage
->face
, stImage
->level
)) {
613 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
618 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
620 /* st_CopyTexImage calls this function with pixels == NULL, with
621 * the expectation that the texture will be set up but nothing
622 * more will be done. This is where those calls return:
624 if (compressed_src
) {
625 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
627 "glCompressedTexImage");
630 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
632 pixels
, unpack
, "glTexImage");
635 /* Note: we can't check for pixels==NULL until after we've allocated
636 * memory for the texture.
639 /* See if we can do texture compression with a blit/render.
641 if (!compressed_src
&&
643 _mesa_is_format_compressed(texImage
->TexFormat
) &&
644 screen
->is_format_supported(screen
,
647 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
651 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
652 format
, type
, pixels
, unpack
, texImage
)) {
658 if (format
== GL_DEPTH_COMPONENT
&&
659 util_format_is_depth_and_stencil(stImage
->pt
->format
))
660 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
662 transfer_usage
= PIPE_TRANSFER_WRITE
;
664 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
665 transfer_usage
, 0, 0,
667 stImage
->base
.Height
);
668 if(stImage
->transfer
)
669 dstRowStride
= stImage
->transfer
->stride
;
672 /* Allocate regular memory and store the image there temporarily. */
673 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
674 sizeInBytes
= _mesa_format_image_size(texImage
->TexFormat
,
678 dstRowStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
682 dstRowStride
= postConvWidth
* texelBytes
;
683 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
686 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
689 if (!texImage
->Data
) {
690 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
697 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
698 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
700 /* Copy data. Would like to know when it's ok for us to eg. use
701 * the blitter to copy. Or, use the hardware to do the format
702 * conversion and copy:
704 if (compressed_src
) {
705 const GLuint srcImageStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
706 if(dstRowStride
== srcImageStride
)
707 memcpy(texImage
->Data
, pixels
, imageSize
);
710 char *dst
= texImage
->Data
;
711 const char *src
= pixels
;
712 GLuint i
, bw
, bh
, lines
;
713 _mesa_get_format_block_size(texImage
->TexFormat
, &bw
, &bh
);
714 lines
= (height
+ bh
- 1) / bh
;
716 for(i
= 0; i
< lines
; ++i
)
718 memcpy(dst
, src
, srcImageStride
);
720 src
+= srcImageStride
;
725 const GLuint srcImageStride
=
726 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
728 const GLubyte
*src
= (const GLubyte
*) pixels
;
730 for (i
= 0; i
< depth
; i
++) {
731 if (!_mesa_texstore(ctx
, dims
,
732 texImage
->_BaseFormat
,
735 0, 0, 0, /* dstX/Y/Zoffset */
737 texImage
->ImageOffsets
,
739 format
, type
, src
, unpack
)) {
740 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
743 if (stImage
->pt
&& i
+ 1 < depth
) {
744 /* unmap this slice */
745 st_texture_image_unmap(ctx
->st
, stImage
);
746 /* map next slice of 3D texture */
747 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
748 transfer_usage
, 0, 0,
750 stImage
->base
.Height
);
751 src
+= srcImageStride
;
757 _mesa_unmap_teximage_pbo(ctx
, unpack
);
759 if (stImage
->pt
&& texImage
->Data
) {
760 st_texture_image_unmap(ctx
->st
, stImage
);
761 texImage
->Data
= NULL
;
767 st_TexImage3D(GLcontext
* ctx
,
768 GLenum target
, GLint level
,
769 GLint internalFormat
,
770 GLint width
, GLint height
, GLint depth
,
772 GLenum format
, GLenum type
, const void *pixels
,
773 const struct gl_pixelstore_attrib
*unpack
,
774 struct gl_texture_object
*texObj
,
775 struct gl_texture_image
*texImage
)
777 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
778 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
784 st_TexImage2D(GLcontext
* ctx
,
785 GLenum target
, GLint level
,
786 GLint internalFormat
,
787 GLint width
, GLint height
, GLint border
,
788 GLenum format
, GLenum type
, const void *pixels
,
789 const struct gl_pixelstore_attrib
*unpack
,
790 struct gl_texture_object
*texObj
,
791 struct gl_texture_image
*texImage
)
793 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
794 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
799 st_TexImage1D(GLcontext
* ctx
,
800 GLenum target
, GLint level
,
801 GLint internalFormat
,
802 GLint width
, GLint border
,
803 GLenum format
, GLenum type
, const void *pixels
,
804 const struct gl_pixelstore_attrib
*unpack
,
805 struct gl_texture_object
*texObj
,
806 struct gl_texture_image
*texImage
)
808 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
809 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
814 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
815 GLint internalFormat
,
816 GLint width
, GLint height
, GLint border
,
817 GLsizei imageSize
, const GLvoid
*data
,
818 struct gl_texture_object
*texObj
,
819 struct gl_texture_image
*texImage
)
821 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
822 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
828 * glGetTexImage() helper: decompress a compressed texture by rendering
829 * a textured quad. Store the results in the user's buffer.
832 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
833 GLenum format
, GLenum type
, GLvoid
*pixels
,
834 struct gl_texture_object
*texObj
,
835 struct gl_texture_image
*texImage
)
837 struct pipe_context
*pipe
= ctx
->st
->pipe
;
838 struct pipe_screen
*screen
= pipe
->screen
;
839 struct st_texture_image
*stImage
= st_texture_image(texImage
);
840 struct st_texture_object
*stObj
= st_texture_object(texObj
);
841 struct pipe_sampler_view
*src_view
= st_get_stobj_sampler_view(stObj
);
842 const GLuint width
= texImage
->Width
;
843 const GLuint height
= texImage
->Height
;
844 struct pipe_surface
*dst_surface
;
845 struct pipe_texture
*dst_texture
;
846 struct pipe_transfer
*tex_xfer
;
848 /* create temp / dest surface */
849 if (!util_create_rgba_surface(screen
, width
, height
,
850 &dst_texture
, &dst_surface
)) {
851 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
852 "in decompress_with_blit()");
856 /* blit/render/decompress */
857 util_blit_pixels_tex(ctx
->st
->blit
,
858 src_view
, /* pipe_texture (src) */
859 0, 0, /* src x0, y0 */
860 width
, height
, /* src x1, y1 */
861 dst_surface
, /* pipe_surface (dst) */
862 0, 0, /* dst x0, y0 */
863 width
, height
, /* dst x1, y1 */
865 PIPE_TEX_MIPFILTER_NEAREST
);
867 /* map the dst_surface so we can read from it */
868 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
869 dst_texture
, 0, 0, 0,
871 0, 0, width
, height
);
873 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
875 /* copy/pack data into user buffer */
876 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
878 const uint bytesPerRow
= width
* util_format_get_blocksize(stImage
->pt
->format
);
879 ubyte
*map
= pipe
->transfer_map(pipe
, tex_xfer
);
881 for (row
= 0; row
< height
; row
++) {
882 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
883 height
, format
, type
, row
, 0);
884 memcpy(dest
, map
, bytesPerRow
);
885 map
+= tex_xfer
->stride
;
887 pipe
->transfer_unmap(pipe
, tex_xfer
);
890 /* format translation via floats */
892 for (row
= 0; row
< height
; row
++) {
893 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
894 GLfloat rgba
[4 * MAX_WIDTH
];
895 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
896 height
, format
, type
, row
, 0);
898 if (ST_DEBUG
& DEBUG_FALLBACK
)
899 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
901 /* get float[4] rgba row from surface */
902 pipe_get_tile_rgba(pipe
, tex_xfer
, 0, row
, width
, 1, rgba
);
904 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
905 type
, dest
, &ctx
->Pack
, transferOps
);
909 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
911 pipe
->tex_transfer_destroy(pipe
, tex_xfer
);
913 /* destroy the temp / dest surface */
914 util_destroy_rgba_surface(dst_texture
, dst_surface
);
920 * Need to map texture image into memory before copying image data,
924 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
925 GLenum format
, GLenum type
, GLvoid
* pixels
,
926 struct gl_texture_object
*texObj
,
927 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
929 struct st_texture_image
*stImage
= st_texture_image(texImage
);
930 const GLuint dstImageStride
=
931 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
937 util_format_is_s3tc(stImage
->pt
->format
) &&
939 /* Need to decompress the texture.
940 * We'll do this by rendering a textured quad.
941 * Note that we only expect RGBA formats (no Z/depth formats).
943 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
950 /* Image is stored in hardware format in a buffer managed by the
951 * kernel. Need to explicitly map and unmap it.
953 unsigned face
= _mesa_tex_target_to_face(target
);
955 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
958 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
959 PIPE_TRANSFER_READ
, 0, 0,
961 stImage
->base
.Height
);
962 texImage
->RowStride
= stImage
->transfer
->stride
/ util_format_get_blocksize(stImage
->pt
->format
);
965 /* Otherwise, the image should actually be stored in
966 * texImage->Data. This is pretty confusing for
967 * everybody, I'd much prefer to separate the two functions of
968 * texImage->Data - storage for texture images in main memory
969 * and access (ie mappings) of images. In other words, we'd
970 * create a new texImage->Map field and leave Data simply for
973 assert(texImage
->Data
);
976 depth
= texImage
->Depth
;
979 dest
= (GLubyte
*) pixels
;
981 for (i
= 0; i
< depth
; i
++) {
982 if (compressed_dst
) {
983 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
987 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
991 if (stImage
->pt
&& i
+ 1 < depth
) {
992 /* unmap this slice */
993 st_texture_image_unmap(ctx
->st
, stImage
);
994 /* map next slice of 3D texture */
995 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
996 PIPE_TRANSFER_READ
, 0, 0,
998 stImage
->base
.Height
);
999 dest
+= dstImageStride
;
1003 texImage
->Depth
= depth
;
1007 st_texture_image_unmap(ctx
->st
, stImage
);
1008 texImage
->Data
= NULL
;
1014 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
1015 GLenum format
, GLenum type
, GLvoid
* pixels
,
1016 struct gl_texture_object
*texObj
,
1017 struct gl_texture_image
*texImage
)
1019 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
1025 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
1027 struct gl_texture_object
*texObj
,
1028 struct gl_texture_image
*texImage
)
1030 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1037 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1038 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1039 GLint width
, GLint height
, GLint depth
,
1040 GLenum format
, GLenum type
, const void *pixels
,
1041 const struct gl_pixelstore_attrib
*packing
,
1042 struct gl_texture_object
*texObj
,
1043 struct gl_texture_image
*texImage
)
1045 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1046 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1047 GLuint dstRowStride
;
1048 const GLuint srcImageStride
=
1049 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1052 /* init to silence warning only: */
1053 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1055 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1056 _mesa_lookup_enum_by_nr(target
),
1057 level
, xoffset
, yoffset
, width
, height
);
1060 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1061 type
, pixels
, packing
, "glTexSubImage2D");
1065 /* See if we can do texture compression with a blit/render.
1067 if (!ctx
->Mesa_DXTn
&&
1068 _mesa_is_format_compressed(texImage
->TexFormat
) &&
1069 screen
->is_format_supported(screen
,
1070 stImage
->pt
->format
,
1071 stImage
->pt
->target
,
1072 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1073 if (compress_with_blit(ctx
, target
, level
,
1074 xoffset
, yoffset
, zoffset
,
1075 width
, height
, depth
,
1076 format
, type
, pixels
, packing
, texImage
)) {
1081 /* Map buffer if necessary. Need to lock to prevent other contexts
1082 * from uploading the buffer under us.
1085 unsigned face
= _mesa_tex_target_to_face(target
);
1087 if (format
== GL_DEPTH_COMPONENT
&&
1088 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1089 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1091 transfer_usage
= PIPE_TRANSFER_WRITE
;
1093 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1095 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1101 if (!texImage
->Data
) {
1102 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1106 src
= (const GLubyte
*) pixels
;
1107 dstRowStride
= stImage
->transfer
->stride
;
1109 for (i
= 0; i
< depth
; i
++) {
1110 if (!_mesa_texstore(ctx
, dims
, texImage
->_BaseFormat
,
1111 texImage
->TexFormat
,
1115 texImage
->ImageOffsets
,
1117 format
, type
, src
, packing
)) {
1118 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1121 if (stImage
->pt
&& i
+ 1 < depth
) {
1122 /* unmap this slice */
1123 st_texture_image_unmap(ctx
->st
, stImage
);
1124 /* map next slice of 3D texture */
1125 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1130 src
+= srcImageStride
;
1135 _mesa_unmap_teximage_pbo(ctx
, packing
);
1137 if (stImage
->pt
&& texImage
->Data
) {
1138 st_texture_image_unmap(ctx
->st
, stImage
);
1139 texImage
->Data
= NULL
;
1146 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1147 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1148 GLsizei width
, GLsizei height
, GLsizei depth
,
1149 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1150 const struct gl_pixelstore_attrib
*packing
,
1151 struct gl_texture_object
*texObj
,
1152 struct gl_texture_image
*texImage
)
1154 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1155 width
, height
, depth
, format
, type
,
1156 pixels
, packing
, texObj
, texImage
);
1161 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1162 GLint xoffset
, GLint yoffset
,
1163 GLsizei width
, GLsizei height
,
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
, 2, target
, level
, xoffset
, yoffset
, 0,
1170 width
, height
, 1, format
, type
,
1171 pixels
, packing
, texObj
, texImage
);
1176 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1177 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1178 const GLvoid
* pixels
,
1179 const struct gl_pixelstore_attrib
*packing
,
1180 struct gl_texture_object
*texObj
,
1181 struct gl_texture_image
*texImage
)
1183 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1184 format
, type
, pixels
, packing
, texObj
, texImage
);
1189 st_CompressedTexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1190 GLint xoffset
, GLsizei width
,
1192 GLsizei imageSize
, const GLvoid
*data
,
1193 struct gl_texture_object
*texObj
,
1194 struct gl_texture_image
*texImage
)
1201 st_CompressedTexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1202 GLint xoffset
, GLint yoffset
,
1203 GLsizei width
, GLint height
,
1205 GLsizei imageSize
, const GLvoid
*data
,
1206 struct gl_texture_object
*texObj
,
1207 struct gl_texture_image
*texImage
)
1209 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1213 enum pipe_format pformat
= stImage
->pt
->format
;
1216 unsigned face
= _mesa_tex_target_to_face(target
);
1218 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1219 PIPE_TRANSFER_WRITE
);
1220 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
1221 PIPE_TRANSFER_WRITE
,
1225 srcBlockStride
= util_format_get_stride(pformat
, width
);
1226 dstBlockStride
= stImage
->transfer
->stride
;
1228 assert(stImage
->pt
);
1229 /* TODO find good values for block and strides */
1230 /* TODO also adjust texImage->data for yoffset/xoffset */
1234 if (!texImage
->Data
) {
1235 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1239 assert(xoffset
% util_format_get_blockwidth(pformat
) == 0);
1240 assert(yoffset
% util_format_get_blockheight(pformat
) == 0);
1241 assert(width
% util_format_get_blockwidth(pformat
) == 0);
1242 assert(height
% util_format_get_blockheight(pformat
) == 0);
1244 for (y
= 0; y
< height
; y
+= util_format_get_blockheight(pformat
)) {
1245 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1246 const char *src
= (const char*)data
+ srcBlockStride
* util_format_get_nblocksy(pformat
, y
);
1247 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* util_format_get_nblocksy(pformat
, y
);
1248 memcpy(dst
, src
, util_format_get_stride(pformat
, width
));
1252 st_texture_image_unmap(ctx
->st
, stImage
);
1253 texImage
->Data
= NULL
;
1259 st_CompressedTexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1260 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1261 GLsizei width
, GLint height
, GLint depth
,
1263 GLsizei imageSize
, const GLvoid
*data
,
1264 struct gl_texture_object
*texObj
,
1265 struct gl_texture_image
*texImage
)
1273 * Do a CopyTexSubImage operation using a read transfer from the source,
1274 * a write transfer to the destination and get_tile()/put_tile() to access
1275 * the pixels/texels.
1277 * Note: srcY=0=TOP of renderbuffer
1280 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1281 struct st_renderbuffer
*strb
,
1282 struct st_texture_image
*stImage
,
1284 GLint destX
, GLint destY
, GLint destZ
,
1285 GLint srcX
, GLint srcY
,
1286 GLsizei width
, GLsizei height
)
1288 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1289 struct pipe_transfer
*src_trans
;
1291 enum pipe_transfer_usage transfer_usage
;
1293 if (ST_DEBUG
& DEBUG_FALLBACK
)
1294 debug_printf("%s: fallback processing\n", __FUNCTION__
);
1296 assert(width
<= MAX_WIDTH
);
1298 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1299 srcY
= strb
->Base
.Height
- srcY
- height
;
1302 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1309 if ((baseFormat
== GL_DEPTH_COMPONENT
||
1310 baseFormat
== GL_DEPTH_STENCIL
) &&
1311 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1312 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1314 transfer_usage
= PIPE_TRANSFER_WRITE
;
1316 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1319 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, transfer_usage
,
1320 destX
, destY
, width
, height
);
1322 if (baseFormat
== GL_DEPTH_COMPONENT
||
1323 baseFormat
== GL_DEPTH_STENCIL
) {
1324 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1325 ctx
->Pixel
.DepthBias
!= 0.0F
);
1328 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1329 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1338 /* To avoid a large temp memory allocation, do copy row by row */
1339 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1340 uint data
[MAX_WIDTH
];
1341 pipe_get_tile_z(pipe
, src_trans
, 0, srcY
, width
, 1, data
);
1343 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1345 pipe_put_tile_z(pipe
, stImage
->transfer
, 0, row
, width
, 1, data
);
1351 (GLfloat
*) malloc(width
* height
* 4 * sizeof(GLfloat
));
1353 if (tempSrc
&& texDest
) {
1354 const GLint dims
= 2;
1355 const GLint dstRowStride
= stImage
->transfer
->stride
;
1356 struct gl_texture_image
*texImage
= &stImage
->base
;
1357 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1359 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1360 unpack
.Invert
= GL_TRUE
;
1363 /* get float/RGBA image from framebuffer */
1364 /* XXX this usually involves a lot of int/float conversion.
1365 * try to avoid that someday.
1367 pipe_get_tile_rgba(pipe
, src_trans
, 0, 0, width
, height
, tempSrc
);
1369 /* Store into texture memory.
1370 * Note that this does some special things such as pixel transfer
1371 * ops and format conversion. In particular, if the dest tex format
1372 * is actually RGBA but the user created the texture as GL_RGB we
1373 * need to fill-in/override the alpha channel with 1.0.
1375 _mesa_texstore(ctx
, dims
,
1376 texImage
->_BaseFormat
,
1377 texImage
->TexFormat
,
1381 texImage
->ImageOffsets
,
1383 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1387 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1394 st_texture_image_unmap(ctx
->st
, stImage
);
1395 pipe
->tex_transfer_destroy(pipe
, src_trans
);
1401 * If the format of the src renderbuffer and the format of the dest
1402 * texture are compatible (in terms of blitting), return a TGSI writemask
1403 * to be used during the blit.
1404 * If the src/dest are incompatible, return 0.
1407 compatible_src_dst_formats(GLcontext
*ctx
,
1408 const struct gl_renderbuffer
*src
,
1409 const struct gl_texture_image
*dst
)
1411 /* Get logical base formats for the src and dest.
1412 * That is, use the user-requested formats and not the actual, device-
1414 * For example, the user may have requested an A8 texture but the
1415 * driver may actually be using an RGBA texture format. When we
1416 * copy/blit to that texture, we only want to copy the Alpha channel
1417 * and not the RGB channels.
1419 * Similarly, when the src FBO was created an RGB format may have been
1420 * requested but the driver actually chose an RGBA format. In that case,
1421 * we don't want to copy the undefined Alpha channel to the dest texture
1422 * (it should be 1.0).
1424 const GLenum srcFormat
= _mesa_base_fbo_format(ctx
, src
->InternalFormat
);
1425 const GLenum dstFormat
= _mesa_base_tex_format(ctx
, dst
->InternalFormat
);
1428 * XXX when we have red-only and red/green renderbuffers we'll need
1429 * to add more cases here (or implement a general-purpose routine that
1430 * queries the existance of the R,G,B,A channels in the src and dest).
1432 if (srcFormat
== dstFormat
) {
1433 /* This is the same as matching_base_formats, which should
1434 * always pass, as it did previously.
1436 return TGSI_WRITEMASK_XYZW
;
1438 else if (srcFormat
== GL_RGB
&& dstFormat
== GL_RGBA
) {
1439 /* Make sure that A in the dest is 1. The actual src format
1440 * may be RGBA and have undefined A values.
1442 return TGSI_WRITEMASK_XYZ
;
1444 else if (srcFormat
== GL_RGBA
&& dstFormat
== GL_RGB
) {
1445 /* Make sure that A in the dest is 1. The actual dst format
1446 * may be RGBA and will need A=1 to provide proper alpha values
1447 * when sampled later.
1449 return TGSI_WRITEMASK_XYZ
;
1452 if (ST_DEBUG
& DEBUG_FALLBACK
)
1453 debug_printf("%s failed for src %s, dst %s\n",
1455 _mesa_lookup_enum_by_nr(srcFormat
),
1456 _mesa_lookup_enum_by_nr(dstFormat
));
1467 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1468 * Note that the region to copy has already been clipped so we know we
1469 * won't read from outside the source renderbuffer's bounds.
1471 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1474 st_copy_texsubimage(GLcontext
*ctx
,
1475 GLenum target
, GLint level
,
1476 GLint destX
, GLint destY
, GLint destZ
,
1477 GLint srcX
, GLint srcY
,
1478 GLsizei width
, GLsizei height
)
1480 struct gl_texture_unit
*texUnit
=
1481 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1482 struct gl_texture_object
*texObj
=
1483 _mesa_select_tex_object(ctx
, texUnit
, target
);
1484 struct gl_texture_image
*texImage
=
1485 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1486 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1487 const GLenum texBaseFormat
= texImage
->_BaseFormat
;
1488 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1489 struct st_renderbuffer
*strb
;
1490 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1491 struct pipe_screen
*screen
= pipe
->screen
;
1492 enum pipe_format dest_format
, src_format
;
1493 GLboolean use_fallback
= GL_TRUE
;
1494 GLboolean matching_base_formats
;
1495 GLuint format_writemask
;
1496 struct pipe_surface
*dest_surface
= NULL
;
1497 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1499 /* any rendering in progress must flushed before we grab the fb image */
1500 st_flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
1502 /* make sure finalize_textures has been called?
1504 if (0) st_validate_state(ctx
->st
);
1506 /* determine if copying depth or color data */
1507 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1508 texBaseFormat
== GL_DEPTH_STENCIL
) {
1509 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1512 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1513 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1516 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1517 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1545 if (width
< 0 || height
< 0)
1550 assert(strb
->surface
);
1551 assert(stImage
->pt
);
1553 src_format
= strb
->surface
->format
;
1554 dest_format
= stImage
->pt
->format
;
1557 * Determine if the src framebuffer and dest texture have the same
1558 * base format. We need this to detect a case such as the framebuffer
1559 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1560 * texture format stores RGBA we need to set A=1 (overriding the
1561 * framebuffer's alpha values). We can't do that with the blit or
1562 * textured-quad paths.
1564 matching_base_formats
=
1565 (_mesa_get_format_base_format(strb
->Base
.Format
) ==
1566 _mesa_get_format_base_format(texImage
->TexFormat
));
1567 format_writemask
= compatible_src_dst_formats(ctx
, &strb
->Base
, texImage
);
1569 if (ctx
->_ImageTransferState
== 0x0) {
1571 if (matching_base_formats
&&
1572 src_format
== dest_format
&&
1575 /* use surface_copy() / blit */
1577 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1578 stImage
->face
, stImage
->level
,
1580 PIPE_BUFFER_USAGE_GPU_WRITE
);
1582 /* for surface_copy(), y=0=top, always */
1583 pipe
->surface_copy(pipe
,
1592 use_fallback
= GL_FALSE
;
1594 else if (format_writemask
&&
1595 texBaseFormat
!= GL_DEPTH_COMPONENT
&&
1596 texBaseFormat
!= GL_DEPTH_STENCIL
&&
1597 screen
->is_format_supported(screen
, src_format
,
1599 PIPE_TEXTURE_USAGE_SAMPLER
,
1601 screen
->is_format_supported(screen
, dest_format
,
1603 PIPE_TEXTURE_USAGE_RENDER_TARGET
,
1605 /* draw textured quad to do the copy */
1608 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1609 stImage
->face
, stImage
->level
,
1611 PIPE_BUFFER_USAGE_GPU_WRITE
);
1614 srcY1
= strb
->Base
.Height
- srcY
- height
;
1615 srcY0
= srcY1
+ height
;
1619 srcY1
= srcY0
+ height
;
1621 util_blit_pixels_writemask(ctx
->st
->blit
,
1623 st_renderbuffer_get_sampler_view(strb
, pipe
),
1625 srcX
+ width
, srcY1
,
1628 destX
+ width
, destY
+ height
,
1629 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1631 use_fallback
= GL_FALSE
;
1635 pipe_surface_reference(&dest_surface
, NULL
);
1639 /* software fallback */
1640 fallback_copy_texsubimage(ctx
, target
, level
,
1641 strb
, stImage
, texBaseFormat
,
1642 destX
, destY
, destZ
,
1643 srcX
, srcY
, width
, height
);
1650 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1651 GLenum internalFormat
,
1652 GLint x
, GLint y
, GLsizei width
, GLint border
)
1654 struct gl_texture_unit
*texUnit
=
1655 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1656 struct gl_texture_object
*texObj
=
1657 _mesa_select_tex_object(ctx
, texUnit
, target
);
1658 struct gl_texture_image
*texImage
=
1659 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1661 /* Setup or redefine the texture object, texture and texture
1662 * image. Don't populate yet.
1664 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1666 GL_RGBA
, CHAN_TYPE
, NULL
,
1667 &ctx
->DefaultPacking
, texObj
, texImage
);
1669 st_copy_texsubimage(ctx
, target
, level
,
1670 0, 0, 0, /* destX,Y,Z */
1671 x
, y
, width
, 1); /* src X, Y, size */
1676 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1677 GLenum internalFormat
,
1678 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1681 struct gl_texture_unit
*texUnit
=
1682 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1683 struct gl_texture_object
*texObj
=
1684 _mesa_select_tex_object(ctx
, texUnit
, target
);
1685 struct gl_texture_image
*texImage
=
1686 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1688 /* Setup or redefine the texture object, texture and texture
1689 * image. Don't populate yet.
1691 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1692 width
, height
, border
,
1693 GL_RGBA
, CHAN_TYPE
, NULL
,
1694 &ctx
->DefaultPacking
, texObj
, texImage
);
1696 st_copy_texsubimage(ctx
, target
, level
,
1697 0, 0, 0, /* destX,Y,Z */
1698 x
, y
, width
, height
); /* src X, Y, size */
1703 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1704 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1706 const GLint yoffset
= 0, zoffset
= 0;
1707 const GLsizei height
= 1;
1708 st_copy_texsubimage(ctx
, target
, level
,
1709 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1710 x
, y
, width
, height
); /* src X, Y, size */
1715 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1716 GLint xoffset
, GLint yoffset
,
1717 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1719 const GLint zoffset
= 0;
1720 st_copy_texsubimage(ctx
, target
, level
,
1721 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1722 x
, y
, width
, height
); /* src X, Y, size */
1727 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1728 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1729 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1731 st_copy_texsubimage(ctx
, target
, level
,
1732 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1733 x
, y
, width
, height
); /* src X, Y, size */
1738 copy_image_data_to_texture(struct st_context
*st
,
1739 struct st_texture_object
*stObj
,
1741 struct st_texture_image
*stImage
)
1744 /* Copy potentially with the blitter:
1746 st_texture_image_copy(st
->pipe
,
1747 stObj
->pt
, dstLevel
, /* dest texture, level */
1748 stImage
->pt
, /* src texture */
1751 pipe_texture_reference(&stImage
->pt
, NULL
);
1753 else if (stImage
->base
.Data
) {
1754 /* More straightforward upload.
1756 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1757 PIPE_TRANSFER_WRITE
);
1759 st_texture_image_data(st
,
1764 stImage
->base
.RowStride
*
1765 util_format_get_blocksize(stObj
->pt
->format
),
1766 stImage
->base
.RowStride
*
1767 stImage
->base
.Height
*
1768 util_format_get_blocksize(stObj
->pt
->format
));
1769 _mesa_align_free(stImage
->base
.Data
);
1770 stImage
->base
.Data
= NULL
;
1773 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
1778 * Called during state validation. When this function is finished,
1779 * the texture object should be ready for rendering.
1780 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1783 st_finalize_texture(GLcontext
*ctx
,
1784 struct pipe_context
*pipe
,
1785 struct gl_texture_object
*tObj
,
1786 GLboolean
*needFlush
)
1788 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1789 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1790 GLuint blockSize
, face
;
1791 struct st_texture_image
*firstImage
;
1793 *needFlush
= GL_FALSE
;
1795 if (stObj
->base
._Complete
) {
1796 /* The texture is complete and we know exactly how many mipmap levels
1797 * are present/needed. This is conditional because we may be called
1798 * from the st_generate_mipmap() function when the texture object is
1799 * incomplete. In that case, we'll have set stObj->lastLevel before
1802 if (stObj
->base
.MinFilter
== GL_LINEAR
||
1803 stObj
->base
.MinFilter
== GL_NEAREST
)
1804 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1806 stObj
->lastLevel
= stObj
->base
._MaxLevel
- stObj
->base
.BaseLevel
;
1809 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1811 /* If both firstImage and stObj point to a texture which can contain
1812 * all active images, favour firstImage. Note that because of the
1813 * completeness requirement, we know that the image dimensions
1816 if (firstImage
->pt
&&
1817 firstImage
->pt
!= stObj
->pt
&&
1818 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1819 pipe_texture_reference(&stObj
->pt
, firstImage
->pt
);
1820 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
1823 /* bytes per pixel block (blocks are usually 1x1) */
1824 blockSize
= _mesa_get_format_bytes(firstImage
->base
.TexFormat
);
1826 /* If we already have a gallium texture, check that it matches the texture
1827 * object's format, target, size, num_levels, etc.
1830 const enum pipe_format fmt
=
1831 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1832 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1833 stObj
->pt
->format
!= fmt
||
1834 stObj
->pt
->last_level
< stObj
->lastLevel
||
1835 stObj
->pt
->width0
!= firstImage
->base
.Width2
||
1836 stObj
->pt
->height0
!= firstImage
->base
.Height2
||
1837 stObj
->pt
->depth0
!= firstImage
->base
.Depth2
)
1839 pipe_texture_reference(&stObj
->pt
, NULL
);
1840 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
1841 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1845 /* May need to create a new gallium texture:
1848 const enum pipe_format fmt
=
1849 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1850 GLuint usage
= default_usage(fmt
);
1852 stObj
->pt
= st_texture_create(ctx
->st
,
1853 gl_target_to_pipe(stObj
->base
.Target
),
1856 firstImage
->base
.Width2
,
1857 firstImage
->base
.Height2
,
1858 firstImage
->base
.Depth2
,
1862 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1867 /* Pull in any images not in the object's texture:
1869 for (face
= 0; face
< nr_faces
; face
++) {
1871 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1872 struct st_texture_image
*stImage
=
1873 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1875 /* Need to import images in main memory or held in other textures.
1877 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1878 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1879 *needFlush
= GL_TRUE
;
1889 * Returns pointer to a default/dummy texture.
1890 * This is typically used when the current shader has tex/sample instructions
1891 * but the user has not provided a (any) texture(s).
1893 struct gl_texture_object
*
1894 st_get_default_texture(struct st_context
*st
)
1896 if (!st
->default_texture
) {
1897 static const GLenum target
= GL_TEXTURE_2D
;
1898 GLubyte pixels
[16][16][4];
1899 struct gl_texture_object
*texObj
;
1900 struct gl_texture_image
*texImg
;
1903 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1904 * when attempting to sample incomplete textures.
1906 for (i
= 0; i
< 16; i
++) {
1907 for (j
= 0; j
< 16; j
++) {
1908 pixels
[i
][j
][0] = 0;
1909 pixels
[i
][j
][1] = 0;
1910 pixels
[i
][j
][2] = 0;
1911 pixels
[i
][j
][3] = 255;
1915 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1917 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1919 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1920 16, 16, 1, 0, /* w, h, d, border */
1923 st_TexImage(st
->ctx
, 2, target
,
1924 0, GL_RGBA
, /* level, intformat */
1925 16, 16, 1, 0, /* w, h, d, border */
1926 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1927 &st
->ctx
->DefaultPacking
,
1931 texObj
->MinFilter
= GL_NEAREST
;
1932 texObj
->MagFilter
= GL_NEAREST
;
1933 texObj
->_Complete
= GL_TRUE
;
1935 st
->default_texture
= texObj
;
1937 return st
->default_texture
;
1942 st_init_texture_functions(struct dd_function_table
*functions
)
1944 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1945 functions
->TexImage1D
= st_TexImage1D
;
1946 functions
->TexImage2D
= st_TexImage2D
;
1947 functions
->TexImage3D
= st_TexImage3D
;
1948 functions
->TexSubImage1D
= st_TexSubImage1D
;
1949 functions
->TexSubImage2D
= st_TexSubImage2D
;
1950 functions
->TexSubImage3D
= st_TexSubImage3D
;
1951 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1952 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1953 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1954 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1955 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1956 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1957 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1958 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1959 functions
->GenerateMipmap
= st_generate_mipmap
;
1961 functions
->GetTexImage
= st_GetTexImage
;
1963 /* compressed texture functions */
1964 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1965 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1967 functions
->NewTextureObject
= st_NewTextureObject
;
1968 functions
->NewTextureImage
= st_NewTextureImage
;
1969 functions
->DeleteTexture
= st_DeleteTextureObject
;
1970 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1971 functions
->UpdateTexturePalette
= 0;
1973 functions
->TextureMemCpy
= do_memcpy
;
1975 /* XXX Temporary until we can query pipe's texture sizes */
1976 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;