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/image.h"
35 #include "main/imports.h"
36 #include "main/macros.h"
37 #include "main/mipmap.h"
38 #include "main/pixel.h"
39 #include "main/texcompress.h"
40 #include "main/texformat.h"
41 #include "main/texgetimage.h"
42 #include "main/teximage.h"
43 #include "main/texobj.h"
44 #include "main/texstore.h"
46 #include "state_tracker/st_context.h"
47 #include "state_tracker/st_cb_fbo.h"
48 #include "state_tracker/st_cb_texture.h"
49 #include "state_tracker/st_format.h"
50 #include "state_tracker/st_public.h"
51 #include "state_tracker/st_texture.h"
52 #include "state_tracker/st_gen_mipmap.h"
53 #include "state_tracker/st_inlines.h"
54 #include "state_tracker/st_atom.h"
56 #include "pipe/p_context.h"
57 #include "pipe/p_defines.h"
58 #include "pipe/p_inlines.h"
59 #include "util/u_tile.h"
60 #include "util/u_blit.h"
61 #include "util/u_surface.h"
64 #define DBG if (0) printf
67 static enum pipe_texture_target
68 gl_target_to_pipe(GLenum target
)
72 return PIPE_TEXTURE_1D
;
75 case GL_TEXTURE_RECTANGLE_NV
:
76 return PIPE_TEXTURE_2D
;
79 return PIPE_TEXTURE_3D
;
81 case GL_TEXTURE_CUBE_MAP_ARB
:
82 return PIPE_TEXTURE_CUBE
;
92 * Return nominal bytes per texel for a compressed format, 0 for non-compressed
96 compressed_num_bytes(GLuint mesaFormat
)
99 #if FEATURE_texture_fxt1
100 case MESA_FORMAT_RGB_FXT1
:
101 case MESA_FORMAT_RGBA_FXT1
:
103 #if FEATURE_texture_s3tc
104 case MESA_FORMAT_RGB_DXT1
:
105 case MESA_FORMAT_RGBA_DXT1
:
107 case MESA_FORMAT_RGBA_DXT3
:
108 case MESA_FORMAT_RGBA_DXT5
:
118 is_compressed_mesa_format(const struct gl_texture_format
*format
)
120 switch (format
->MesaFormat
) {
121 case MESA_FORMAT_RGB_DXT1
:
122 case MESA_FORMAT_RGBA_DXT1
:
123 case MESA_FORMAT_RGBA_DXT3
:
124 case MESA_FORMAT_RGBA_DXT5
:
125 case MESA_FORMAT_SRGB_DXT1
:
126 case MESA_FORMAT_SRGBA_DXT1
:
127 case MESA_FORMAT_SRGBA_DXT3
:
128 case MESA_FORMAT_SRGBA_DXT5
:
136 /** called via ctx->Driver.NewTextureImage() */
137 static struct gl_texture_image
*
138 st_NewTextureImage(GLcontext
* ctx
)
140 DBG("%s\n", __FUNCTION__
);
142 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
146 /** called via ctx->Driver.NewTextureObject() */
147 static struct gl_texture_object
*
148 st_NewTextureObject(GLcontext
* ctx
, GLuint name
, GLenum target
)
150 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
152 DBG("%s\n", __FUNCTION__
);
153 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
158 /** called via ctx->Driver.DeleteTextureImage() */
160 st_DeleteTextureObject(GLcontext
*ctx
,
161 struct gl_texture_object
*texObj
)
163 struct st_texture_object
*stObj
= st_texture_object(texObj
);
165 pipe_texture_reference(&stObj
->pt
, NULL
);
167 _mesa_delete_texture_object(ctx
, texObj
);
171 /** called via ctx->Driver.FreeTexImageData() */
173 st_FreeTextureImageData(GLcontext
* ctx
, struct gl_texture_image
*texImage
)
175 struct st_texture_image
*stImage
= st_texture_image(texImage
);
177 DBG("%s\n", __FUNCTION__
);
180 pipe_texture_reference(&stImage
->pt
, NULL
);
183 if (texImage
->Data
) {
184 _mesa_align_free(texImage
->Data
);
185 texImage
->Data
= NULL
;
191 * From linux kernel i386 header files, copes with odd sizes better
192 * than COPY_DWORDS would:
193 * XXX Put this in src/mesa/main/imports.h ???
195 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
197 __memcpy(void *to
, const void *from
, size_t n
)
200 __asm__
__volatile__("rep ; movsl\n\t"
204 "1:\ttestb $1,%b4\n\t"
206 "movsb\n" "2:":"=&c"(d0
), "=&D"(d1
), "=&S"(d2
)
207 :"0"(n
/ 4), "q"(n
), "1"((long) to
), "2"((long) from
)
212 #define __memcpy(a,b,c) memcpy(a,b,c)
217 * The system memcpy (at least on ubuntu 5.10) has problems copying
218 * to agp (writecombined) memory from a source which isn't 64-byte
219 * aligned - there is a 4x performance falloff.
221 * The x86 __memcpy is immune to this but is slightly slower
222 * (10%-ish) than the system memcpy.
224 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
225 * isn't much faster than x86_memcpy for agp copies.
227 * TODO: switch dynamically.
230 do_memcpy(void *dest
, const void *src
, size_t n
)
232 if ((((unsigned long) src
) & 63) || (((unsigned long) dest
) & 63)) {
233 return __memcpy(dest
, src
, n
);
236 return memcpy(dest
, src
, n
);
243 GLint i
= 1, log2
= 0;
253 * Return default texture usage bitmask for the given texture format.
256 default_usage(enum pipe_format fmt
)
258 GLuint usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
259 if (pf_is_depth_stencil(fmt
))
260 usage
|= PIPE_TEXTURE_USAGE_DEPTH_STENCIL
;
262 usage
|= PIPE_TEXTURE_USAGE_RENDER_TARGET
;
268 * Allocate a pipe_texture object for the given st_texture_object using
269 * the given st_texture_image to guess the mipmap size/levels.
272 * Otherwise, store it in memory if (Border != 0) or (any dimension ==
275 * Otherwise, if max_level >= level >= min_level, create texture with
276 * space for images from min_level down to max_level.
278 * Otherwise, create texture with space for images from (level 0)..(1x1).
279 * Consider pruning this texture at a validation if the saving is worth it.
282 guess_and_alloc_texture(struct st_context
*st
,
283 struct st_texture_object
*stObj
,
284 const struct st_texture_image
*stImage
)
288 GLuint width
= stImage
->base
.Width2
; /* size w/out border */
289 GLuint height
= stImage
->base
.Height2
;
290 GLuint depth
= stImage
->base
.Depth2
;
292 enum pipe_format fmt
;
294 DBG("%s\n", __FUNCTION__
);
299 (GLint
) stImage
->level
> stObj
->base
.BaseLevel
&&
300 (stImage
->base
.Width
== 1 ||
301 (stObj
->base
.Target
!= GL_TEXTURE_1D
&&
302 stImage
->base
.Height
== 1) ||
303 (stObj
->base
.Target
== GL_TEXTURE_3D
&&
304 stImage
->base
.Depth
== 1)))
307 /* If this image disrespects BaseLevel, allocate from level zero.
308 * Usually BaseLevel == 0, so it's unlikely to happen.
310 if ((GLint
) stImage
->level
< stObj
->base
.BaseLevel
)
313 firstLevel
= stObj
->base
.BaseLevel
;
316 /* Figure out image dimensions at start level.
318 for (i
= stImage
->level
; i
> firstLevel
; i
--) {
327 if (width
== 0 || height
== 0 || depth
== 0) {
328 /* no texture needed */
332 /* Guess a reasonable value for lastLevel. This is probably going
333 * to be wrong fairly often and might mean that we have to look at
334 * resizable buffers, or require that buffers implement lazy
335 * pagetable arrangements.
337 if ((stObj
->base
.MinFilter
== GL_NEAREST
||
338 stObj
->base
.MinFilter
== GL_LINEAR
||
339 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
340 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
341 stImage
->level
== firstLevel
) {
342 lastLevel
= firstLevel
;
345 GLuint l2width
= logbase2(width
);
346 GLuint l2height
= logbase2(height
);
347 GLuint l2depth
= logbase2(depth
);
348 lastLevel
= firstLevel
+ MAX2(MAX2(l2width
, l2height
), l2depth
);
351 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
->MesaFormat
);
353 usage
= default_usage(fmt
);
355 stObj
->pt
= st_texture_create(st
,
356 gl_target_to_pipe(stObj
->base
.Target
),
364 DBG("%s - success\n", __FUNCTION__
);
369 * Adjust pixel unpack params and image dimensions to strip off the
371 * Gallium doesn't support texture borders. They've seldem been used
372 * and seldom been implemented correctly anyway.
373 * \param unpackNew returns the new pixel unpack parameters
376 strip_texture_border(GLint border
,
377 GLint
*width
, GLint
*height
, GLint
*depth
,
378 const struct gl_pixelstore_attrib
*unpack
,
379 struct gl_pixelstore_attrib
*unpackNew
)
381 assert(border
> 0); /* sanity check */
383 *unpackNew
= *unpack
;
385 if (unpackNew
->RowLength
== 0)
386 unpackNew
->RowLength
= *width
;
388 if (depth
&& unpackNew
->ImageHeight
== 0)
389 unpackNew
->ImageHeight
= *height
;
391 unpackNew
->SkipPixels
+= border
;
393 unpackNew
->SkipRows
+= border
;
395 unpackNew
->SkipImages
+= border
;
398 *width
= *width
- 2 * border
;
399 if (height
&& *height
>= 3)
400 *height
= *height
- 2 * border
;
401 if (depth
&& *depth
>= 3)
402 *depth
= *depth
- 2 * border
;
407 * Try to do texture compression via rendering. If the Gallium driver
408 * can render into a compressed surface this will allow us to do texture
410 * \return GL_TRUE for success, GL_FALSE for failure
413 compress_with_blit(GLcontext
* ctx
,
414 GLenum target
, GLint level
,
415 GLint xoffset
, GLint yoffset
, GLint zoffset
,
416 GLint width
, GLint height
, GLint depth
,
417 GLenum format
, GLenum type
, const void *pixels
,
418 const struct gl_pixelstore_attrib
*unpack
,
419 struct gl_texture_image
*texImage
)
421 const GLuint dstImageOffsets
[1] = {0};
422 struct st_texture_image
*stImage
= st_texture_image(texImage
);
423 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
424 const struct gl_texture_format
*mesa_format
;
425 struct pipe_texture templ
;
426 struct pipe_texture
*src_tex
;
427 struct pipe_surface
*dst_surface
;
428 struct pipe_transfer
*tex_xfer
;
433 /* XXX: Can this happen? Should we assert? */
437 /* get destination surface (in the compressed texture) */
438 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
439 stImage
->face
, stImage
->level
, 0,
440 PIPE_BUFFER_USAGE_GPU_WRITE
);
442 /* can't render into this format (or other problem) */
446 /* Choose format for the temporary RGBA texture image.
448 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
453 /* Create the temporary source texture
455 memset(&templ
, 0, sizeof(templ
));
456 templ
.target
= PIPE_TEXTURE_2D
;
457 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
->MesaFormat
);
458 pf_get_block(templ
.format
, &templ
.block
);
459 templ
.width
[0] = width
;
460 templ
.height
[0] = height
;
462 templ
.last_level
= 0;
463 templ
.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
464 src_tex
= screen
->texture_create(screen
, &templ
);
469 /* Put user's tex data into the temporary texture
471 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
472 0, 0, 0, /* face, level are zero */
474 0, 0, width
, height
); /* x, y, w, h */
475 map
= screen
->transfer_map(screen
, tex_xfer
);
477 mesa_format
->StoreImage(ctx
, 2, GL_RGBA
, mesa_format
,
479 0, 0, 0, /* dest x/y/z offset */
480 tex_xfer
->stride
, /* dest row stride (bytes) */
481 dstImageOffsets
, /* image offsets (for 3D only) */
482 width
, height
, 1, /* size */
483 format
, type
, /* source format/type */
484 pixels
, /* source data */
485 unpack
); /* source data packing */
487 screen
->transfer_unmap(screen
, tex_xfer
);
488 screen
->tex_transfer_destroy(tex_xfer
);
490 /* copy / compress image */
491 util_blit_pixels_tex(ctx
->st
->blit
,
492 src_tex
, /* pipe_texture (src) */
493 0, 0, /* src x0, y0 */
494 width
, height
, /* src x1, y1 */
495 dst_surface
, /* pipe_surface (dst) */
496 xoffset
, yoffset
, /* dst x0, y0 */
497 xoffset
+ width
, /* dst x1 */
498 yoffset
+ height
, /* dst y1 */
500 PIPE_TEX_MIPFILTER_NEAREST
);
502 pipe_surface_reference(&dst_surface
, NULL
);
503 pipe_texture_reference(&src_tex
, NULL
);
510 * Do glTexImage1/2/3D().
513 st_TexImage(GLcontext
* ctx
,
515 GLenum target
, GLint level
,
516 GLint internalFormat
,
517 GLint width
, GLint height
, GLint depth
,
519 GLenum format
, GLenum type
, const void *pixels
,
520 const struct gl_pixelstore_attrib
*unpack
,
521 struct gl_texture_object
*texObj
,
522 struct gl_texture_image
*texImage
,
523 GLsizei imageSize
, GLboolean compressed_src
)
525 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
526 struct st_texture_object
*stObj
= st_texture_object(texObj
);
527 struct st_texture_image
*stImage
= st_texture_image(texImage
);
528 GLint postConvWidth
, postConvHeight
;
529 GLint texelBytes
, sizeInBytes
;
531 struct gl_pixelstore_attrib unpackNB
;
532 enum pipe_transfer_usage transfer_usage
;
534 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
535 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
537 /* gallium does not support texture borders, strip it off */
539 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
541 texImage
->Width
= width
;
542 texImage
->Height
= height
;
543 texImage
->Depth
= depth
;
544 texImage
->Border
= 0;
548 postConvWidth
= width
;
549 postConvHeight
= height
;
551 stImage
->face
= _mesa_tex_target_to_face(target
);
552 stImage
->level
= level
;
555 if (ctx
->_ImageTransferState
& IMAGE_CONVOLUTION_BIT
) {
556 _mesa_adjust_image_for_convolution(ctx
, dims
, &postConvWidth
,
561 /* choose the texture format */
562 texImage
->TexFormat
= st_ChooseTextureFormat(ctx
, internalFormat
,
565 _mesa_set_fetch_functions(texImage
, dims
);
567 if (texImage
->TexFormat
->TexelBytes
== 0) {
568 /* must be a compressed format */
570 texImage
->IsCompressed
= GL_TRUE
;
571 texImage
->CompressedSize
=
572 ctx
->Driver
.CompressedTextureSize(ctx
, texImage
->Width
,
573 texImage
->Height
, texImage
->Depth
,
574 texImage
->TexFormat
->MesaFormat
);
577 texelBytes
= texImage
->TexFormat
->TexelBytes
;
579 /* Minimum pitch of 32 bytes */
580 if (postConvWidth
* texelBytes
< 32) {
581 postConvWidth
= 32 / texelBytes
;
582 texImage
->RowStride
= postConvWidth
;
585 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
586 /*assert(texImage->RowStride == postConvWidth);*/
589 /* Release the reference to a potentially orphaned buffer.
590 * Release any old malloced memory.
593 pipe_texture_reference(&stImage
->pt
, NULL
);
594 assert(!texImage
->Data
);
596 else if (texImage
->Data
) {
597 _mesa_align_free(texImage
->Data
);
600 if (width
== 0 || height
== 0 || depth
== 0) {
601 /* stop after freeing old image */
605 /* If this is the only mipmap level in the texture, could call
606 * bmBufferData with NULL data to free the old block and avoid
607 * waiting on any outstanding fences.
610 if (stObj
->teximage_realloc
||
611 level
> (GLint
) stObj
->pt
->last_level
||
612 (stObj
->pt
->last_level
== level
&&
613 stObj
->pt
->target
!= PIPE_TEXTURE_CUBE
&&
614 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
615 stImage
->face
, stImage
->level
))) {
617 pipe_texture_reference(&stObj
->pt
, NULL
);
619 stObj
->teximage_realloc
= FALSE
;
624 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
626 /* Probably out of memory.
627 * Try flushing any pending rendering, then retry.
630 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
632 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
638 assert(!stImage
->pt
);
641 st_texture_match_image(stObj
->pt
, &stImage
->base
,
642 stImage
->face
, stImage
->level
)) {
644 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
649 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
651 /* st_CopyTexImage calls this function with pixels == NULL, with
652 * the expectation that the texture will be set up but nothing
653 * more will be done. This is where those calls return:
655 if (compressed_src
) {
656 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
658 "glCompressedTexImage");
661 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
663 pixels
, unpack
, "glTexImage");
668 /* See if we can do texture compression with a blit/render.
670 if (!compressed_src
&&
672 is_compressed_mesa_format(texImage
->TexFormat
) &&
673 screen
->is_format_supported(screen
,
676 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
677 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
678 format
, type
, pixels
, unpack
, texImage
)) {
684 if (format
== GL_DEPTH_COMPONENT
&&
685 pf_is_depth_and_stencil(stImage
->pt
->format
))
686 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
688 transfer_usage
= PIPE_TRANSFER_WRITE
;
690 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
691 transfer_usage
, 0, 0,
693 stImage
->base
.Height
);
694 if(stImage
->transfer
)
695 dstRowStride
= stImage
->transfer
->stride
;
698 /* Allocate regular memory and store the image there temporarily. */
699 if (texImage
->IsCompressed
) {
700 sizeInBytes
= texImage
->CompressedSize
;
702 _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
, width
);
706 dstRowStride
= postConvWidth
* texelBytes
;
707 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
710 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
713 if (!texImage
->Data
) {
714 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
718 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
719 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
721 /* Copy data. Would like to know when it's ok for us to eg. use
722 * the blitter to copy. Or, use the hardware to do the format
723 * conversion and copy:
725 if (compressed_src
) {
726 memcpy(texImage
->Data
, pixels
, imageSize
);
729 const GLuint srcImageStride
=
730 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
732 const GLubyte
*src
= (const GLubyte
*) pixels
;
734 for (i
= 0; i
< depth
; i
++) {
735 if (!texImage
->TexFormat
->StoreImage(ctx
, dims
,
736 texImage
->_BaseFormat
,
739 0, 0, 0, /* dstX/Y/Zoffset */
741 texImage
->ImageOffsets
,
743 format
, type
, src
, unpack
)) {
744 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
747 if (stImage
->pt
&& i
+ 1 < depth
) {
748 /* unmap this slice */
749 st_texture_image_unmap(ctx
->st
, stImage
);
750 /* map next slice of 3D texture */
751 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
752 transfer_usage
, 0, 0,
754 stImage
->base
.Height
);
755 src
+= srcImageStride
;
760 _mesa_unmap_teximage_pbo(ctx
, unpack
);
763 if (stImage
->pt
&& texImage
->Data
) {
764 st_texture_image_unmap(ctx
->st
, stImage
);
765 texImage
->Data
= NULL
;
768 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
769 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
775 st_TexImage3D(GLcontext
* ctx
,
776 GLenum target
, GLint level
,
777 GLint internalFormat
,
778 GLint width
, GLint height
, GLint depth
,
780 GLenum format
, GLenum type
, const void *pixels
,
781 const struct gl_pixelstore_attrib
*unpack
,
782 struct gl_texture_object
*texObj
,
783 struct gl_texture_image
*texImage
)
785 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
786 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
792 st_TexImage2D(GLcontext
* ctx
,
793 GLenum target
, GLint level
,
794 GLint internalFormat
,
795 GLint width
, GLint height
, GLint border
,
796 GLenum format
, GLenum type
, const void *pixels
,
797 const struct gl_pixelstore_attrib
*unpack
,
798 struct gl_texture_object
*texObj
,
799 struct gl_texture_image
*texImage
)
801 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
802 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
807 st_TexImage1D(GLcontext
* ctx
,
808 GLenum target
, GLint level
,
809 GLint internalFormat
,
810 GLint width
, GLint border
,
811 GLenum format
, GLenum type
, const void *pixels
,
812 const struct gl_pixelstore_attrib
*unpack
,
813 struct gl_texture_object
*texObj
,
814 struct gl_texture_image
*texImage
)
816 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
817 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
822 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
823 GLint internalFormat
,
824 GLint width
, GLint height
, GLint border
,
825 GLsizei imageSize
, const GLvoid
*data
,
826 struct gl_texture_object
*texObj
,
827 struct gl_texture_image
*texImage
)
829 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
830 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
836 * glGetTexImage() helper: decompress a compressed texture by rendering
837 * a textured quad. Store the results in the user's buffer.
840 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
841 GLenum format
, GLenum type
, GLvoid
*pixels
,
842 struct gl_texture_object
*texObj
,
843 struct gl_texture_image
*texImage
)
845 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
846 struct st_texture_image
*stImage
= st_texture_image(texImage
);
847 const GLuint width
= texImage
->Width
;
848 const GLuint height
= texImage
->Height
;
849 struct pipe_surface
*dst_surface
;
850 struct pipe_texture
*dst_texture
;
851 struct pipe_transfer
*tex_xfer
;
853 /* create temp / dest surface */
854 if (!util_create_rgba_surface(screen
, width
, height
,
855 &dst_texture
, &dst_surface
)) {
856 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
857 "in decompress_with_blit()");
861 /* blit/render/decompress */
862 util_blit_pixels_tex(ctx
->st
->blit
,
863 stImage
->pt
, /* pipe_texture (src) */
864 0, 0, /* src x0, y0 */
865 width
, height
, /* src x1, y1 */
866 dst_surface
, /* pipe_surface (dst) */
867 0, 0, /* dst x0, y0 */
868 width
, height
, /* dst x1, y1 */
870 PIPE_TEX_MIPFILTER_NEAREST
);
872 /* map the dst_surface so we can read from it */
873 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
874 dst_texture
, 0, 0, 0,
876 0, 0, width
, height
);
878 pixels
= _mesa_map_readpix_pbo(ctx
, &ctx
->Pack
, pixels
);
880 /* copy/pack data into user buffer */
881 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
883 const uint bytesPerRow
= width
* pf_get_size(stImage
->pt
->format
);
884 ubyte
*map
= screen
->transfer_map(screen
, tex_xfer
);
886 for (row
= 0; row
< height
; row
++) {
887 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
888 height
, format
, type
, row
, 0);
889 memcpy(dest
, map
, bytesPerRow
);
890 map
+= tex_xfer
->stride
;
892 screen
->transfer_unmap(screen
, tex_xfer
);
895 /* format translation via floats */
897 for (row
= 0; row
< height
; row
++) {
898 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
899 GLfloat rgba
[4 * MAX_WIDTH
];
900 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
901 height
, format
, type
, row
, 0);
903 /* get float[4] rgba row from surface */
904 pipe_get_tile_rgba(tex_xfer
, 0, row
, width
, 1, rgba
);
906 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
907 type
, dest
, &ctx
->Pack
, transferOps
);
911 _mesa_unmap_readpix_pbo(ctx
, &ctx
->Pack
);
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 pf_is_compressed(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.
954 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, level
,
957 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
958 PIPE_TRANSFER_READ
, 0, 0,
960 stImage
->base
.Height
);
961 texImage
->RowStride
= stImage
->transfer
->stride
/ stImage
->pt
->block
.size
;
964 /* Otherwise, the image should actually be stored in
965 * texImage->Data. This is pretty confusing for
966 * everybody, I'd much prefer to separate the two functions of
967 * texImage->Data - storage for texture images in main memory
968 * and access (ie mappings) of images. In other words, we'd
969 * create a new texImage->Map field and leave Data simply for
972 assert(texImage
->Data
);
975 depth
= texImage
->Depth
;
978 dest
= (GLubyte
*) pixels
;
980 for (i
= 0; i
< depth
; i
++) {
981 if (compressed_dst
) {
982 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
986 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
990 if (stImage
->pt
&& i
+ 1 < depth
) {
991 /* unmap this slice */
992 st_texture_image_unmap(ctx
->st
, stImage
);
993 /* map next slice of 3D texture */
994 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
995 PIPE_TRANSFER_READ
, 0, 0,
997 stImage
->base
.Height
);
998 dest
+= dstImageStride
;
1002 texImage
->Depth
= depth
;
1006 st_texture_image_unmap(ctx
->st
, stImage
);
1007 texImage
->Data
= NULL
;
1013 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
1014 GLenum format
, GLenum type
, GLvoid
* pixels
,
1015 struct gl_texture_object
*texObj
,
1016 struct gl_texture_image
*texImage
)
1018 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
1024 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
1026 struct gl_texture_object
*texObj
,
1027 struct gl_texture_image
*texImage
)
1029 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1036 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1037 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1038 GLint width
, GLint height
, GLint depth
,
1039 GLenum format
, GLenum type
, const void *pixels
,
1040 const struct gl_pixelstore_attrib
*packing
,
1041 struct gl_texture_object
*texObj
,
1042 struct gl_texture_image
*texImage
)
1044 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1045 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1046 GLuint dstRowStride
;
1047 const GLuint srcImageStride
=
1048 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1051 enum pipe_transfer_usage transfer_usage
;
1053 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1054 _mesa_lookup_enum_by_nr(target
),
1055 level
, xoffset
, yoffset
, width
, height
);
1058 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1059 type
, pixels
, packing
, "glTexSubImage2D");
1063 /* See if we can do texture compression with a blit/render.
1065 if (!ctx
->Mesa_DXTn
&&
1066 is_compressed_mesa_format(texImage
->TexFormat
) &&
1067 screen
->is_format_supported(screen
,
1068 stImage
->pt
->format
,
1069 stImage
->pt
->target
,
1070 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1071 if (compress_with_blit(ctx
, target
, level
,
1072 xoffset
, yoffset
, zoffset
,
1073 width
, height
, depth
,
1074 format
, type
, pixels
, packing
, texImage
)) {
1079 /* Map buffer if necessary. Need to lock to prevent other contexts
1080 * from uploading the buffer under us.
1083 if (format
== GL_DEPTH_COMPONENT
&&
1084 pf_is_depth_and_stencil(stImage
->pt
->format
))
1085 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1087 transfer_usage
= PIPE_TRANSFER_WRITE
;
1089 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, level
,
1091 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1097 if (!texImage
->Data
) {
1098 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1102 src
= (const GLubyte
*) pixels
;
1103 dstRowStride
= stImage
->transfer
->stride
;
1105 for (i
= 0; i
< depth
; i
++) {
1106 if (!texImage
->TexFormat
->StoreImage(ctx
, dims
, texImage
->_BaseFormat
,
1107 texImage
->TexFormat
,
1111 texImage
->ImageOffsets
,
1113 format
, type
, src
, packing
)) {
1114 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1117 if (stImage
->pt
&& i
+ 1 < depth
) {
1118 /* unmap this slice */
1119 st_texture_image_unmap(ctx
->st
, stImage
);
1120 /* map next slice of 3D texture */
1121 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1126 src
+= srcImageStride
;
1130 _mesa_unmap_teximage_pbo(ctx
, packing
);
1134 st_texture_image_unmap(ctx
->st
, stImage
);
1135 texImage
->Data
= NULL
;
1138 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
1139 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
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
);
1210 struct pipe_format_block block
;
1216 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, level
,
1217 PIPE_TRANSFER_WRITE
);
1218 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
1219 PIPE_TRANSFER_WRITE
,
1223 block
= stImage
->pt
->block
;
1224 srcBlockStride
= pf_get_stride(&block
, width
);
1225 dstBlockStride
= stImage
->transfer
->stride
;
1227 assert(stImage
->pt
);
1228 /* TODO find good values for block and strides */
1229 /* TODO also adjust texImage->data for yoffset/xoffset */
1233 if (!texImage
->Data
) {
1234 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1238 assert(xoffset
% block
.width
== 0);
1239 assert(yoffset
% block
.height
== 0);
1240 assert(width
% block
.width
== 0);
1241 assert(height
% block
.height
== 0);
1243 for (y
= 0; y
< height
; y
+= block
.height
) {
1244 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1245 const char *src
= (const char*)data
+ srcBlockStride
* pf_get_nblocksy(&block
, y
);
1246 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* pf_get_nblocksy(&block
, y
);
1247 memcpy(dst
, src
, pf_get_stride(&block
, width
));
1251 st_texture_image_unmap(ctx
->st
, stImage
);
1252 texImage
->Data
= NULL
;
1258 st_CompressedTexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1259 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1260 GLsizei width
, GLint height
, GLint depth
,
1262 GLsizei imageSize
, const GLvoid
*data
,
1263 struct gl_texture_object
*texObj
,
1264 struct gl_texture_image
*texImage
)
1272 * Do a CopyTexSubImage operation using a read transfer from the source,
1273 * a write transfer to the destination and get_tile()/put_tile() to access
1274 * the pixels/texels.
1276 * Note: srcY=0=TOP of renderbuffer
1279 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1280 struct st_renderbuffer
*strb
,
1281 struct st_texture_image
*stImage
,
1283 GLint destX
, GLint destY
, GLint destZ
,
1284 GLint srcX
, GLint srcY
,
1285 GLsizei width
, GLsizei height
)
1287 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1288 struct pipe_screen
*screen
= pipe
->screen
;
1289 struct pipe_transfer
*src_trans
;
1291 enum pipe_transfer_usage transfer_usage
;
1293 assert(width
<= MAX_WIDTH
);
1295 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1296 srcY
= strb
->Base
.Height
- srcY
- height
;
1299 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1306 if (baseFormat
== GL_DEPTH_COMPONENT
&&
1307 pf_is_depth_and_stencil(stImage
->pt
->format
))
1308 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1310 transfer_usage
= PIPE_TRANSFER_WRITE
;
1312 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1315 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, transfer_usage
,
1316 destX
, destY
, width
, height
);
1318 if (baseFormat
== GL_DEPTH_COMPONENT
||
1319 baseFormat
== GL_DEPTH24_STENCIL8
) {
1320 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1321 ctx
->Pixel
.DepthBias
!= 0.0F
);
1324 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1325 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1334 /* To avoid a large temp memory allocation, do copy row by row */
1335 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1336 uint data
[MAX_WIDTH
];
1337 pipe_get_tile_z(src_trans
, 0, srcY
, width
, 1, data
);
1339 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1341 pipe_put_tile_z(stImage
->transfer
, 0, row
, width
, 1, data
);
1347 (GLfloat
*) _mesa_malloc(width
* height
* 4 * sizeof(GLfloat
));
1349 if (tempSrc
&& texDest
) {
1350 const GLint dims
= 2;
1351 const GLint dstRowStride
= stImage
->transfer
->stride
;
1352 struct gl_texture_image
*texImage
= &stImage
->base
;
1353 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1355 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1356 unpack
.Invert
= GL_TRUE
;
1359 /* get float/RGBA image from framebuffer */
1360 /* XXX this usually involves a lot of int/float conversion.
1361 * try to avoid that someday.
1363 pipe_get_tile_rgba(src_trans
, 0, 0, width
, height
, tempSrc
);
1365 /* Store into texture memory.
1366 * Note that this does some special things such as pixel transfer
1367 * ops and format conversion. In particular, if the dest tex format
1368 * is actually RGBA but the user created the texture as GL_RGB we
1369 * need to fill-in/override the alpha channel with 1.0.
1371 texImage
->TexFormat
->StoreImage(ctx
, dims
,
1372 texImage
->_BaseFormat
,
1373 texImage
->TexFormat
,
1377 texImage
->ImageOffsets
,
1379 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1383 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1387 _mesa_free(tempSrc
);
1390 st_texture_image_unmap(ctx
->st
, stImage
);
1391 screen
->tex_transfer_destroy(src_trans
);
1396 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1397 * Note that the region to copy has already been clipped so we know we
1398 * won't read from outside the source renderbuffer's bounds.
1400 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1403 st_copy_texsubimage(GLcontext
*ctx
,
1404 GLenum target
, GLint level
,
1405 GLint destX
, GLint destY
, GLint destZ
,
1406 GLint srcX
, GLint srcY
,
1407 GLsizei width
, GLsizei height
)
1409 struct gl_texture_unit
*texUnit
=
1410 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1411 struct gl_texture_object
*texObj
=
1412 _mesa_select_tex_object(ctx
, texUnit
, target
);
1413 struct gl_texture_image
*texImage
=
1414 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1415 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1416 const GLenum texBaseFormat
= texImage
->InternalFormat
;
1417 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1418 struct st_renderbuffer
*strb
;
1419 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1420 struct pipe_screen
*screen
= pipe
->screen
;
1421 enum pipe_format dest_format
, src_format
;
1422 GLboolean use_fallback
= GL_TRUE
;
1423 GLboolean matching_base_formats
;
1425 /* any rendering in progress must flushed before we grab the fb image */
1426 st_flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
1428 /* make sure finalize_textures has been called?
1430 if (0) st_validate_state(ctx
->st
);
1432 /* determine if copying depth or color data */
1433 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1434 texBaseFormat
== GL_DEPTH24_STENCIL8
) {
1435 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1437 else if (texBaseFormat
== GL_DEPTH_STENCIL_EXT
) {
1438 strb
= st_renderbuffer(fb
->_StencilBuffer
);
1441 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1442 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1445 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1446 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1474 if (width
< 0 || height
< 0)
1479 assert(strb
->surface
);
1480 assert(stImage
->pt
);
1482 src_format
= strb
->surface
->format
;
1483 dest_format
= stImage
->pt
->format
;
1486 * Determine if the src framebuffer and dest texture have the same
1487 * base format. We need this to detect a case such as the framebuffer
1488 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1489 * texture format stores RGBA we need to set A=1 (overriding the
1490 * framebuffer's alpha values). We can't do that with the blit or
1491 * textured-quad paths.
1493 matching_base_formats
= (strb
->Base
._BaseFormat
== texImage
->_BaseFormat
);
1495 if (matching_base_formats
&& ctx
->_ImageTransferState
== 0x0) {
1496 /* try potential hardware path */
1497 struct pipe_surface
*dest_surface
= NULL
;
1498 boolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1500 if (src_format
== dest_format
&& !do_flip
) {
1501 /* use surface_copy() / blit */
1503 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1504 stImage
->face
, stImage
->level
,
1506 PIPE_BUFFER_USAGE_GPU_WRITE
);
1508 /* for surface_copy(), y=0=top, always */
1509 pipe
->surface_copy(pipe
,
1518 use_fallback
= GL_FALSE
;
1520 else if (screen
->is_format_supported(screen
, src_format
,
1522 PIPE_TEXTURE_USAGE_SAMPLER
,
1524 screen
->is_format_supported(screen
, dest_format
,
1526 PIPE_TEXTURE_USAGE_RENDER_TARGET
,
1528 /* draw textured quad to do the copy */
1531 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1532 stImage
->face
, stImage
->level
,
1534 PIPE_BUFFER_USAGE_GPU_WRITE
);
1537 srcY1
= strb
->Base
.Height
- srcY
- height
;
1538 srcY0
= srcY1
+ height
;
1542 srcY1
= srcY0
+ height
;
1544 util_blit_pixels(ctx
->st
->blit
,
1547 srcX
+ width
, srcY1
,
1550 destX
+ width
, destY
+ height
,
1551 0.0, PIPE_TEX_MIPFILTER_NEAREST
);
1552 use_fallback
= GL_FALSE
;
1556 pipe_surface_reference(&dest_surface
, NULL
);
1560 /* software fallback */
1561 fallback_copy_texsubimage(ctx
, target
, level
,
1562 strb
, stImage
, texBaseFormat
,
1563 destX
, destY
, destZ
,
1564 srcX
, srcY
, width
, height
);
1567 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
1568 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1575 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1576 GLenum internalFormat
,
1577 GLint x
, GLint y
, GLsizei width
, GLint border
)
1579 struct gl_texture_unit
*texUnit
=
1580 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1581 struct gl_texture_object
*texObj
=
1582 _mesa_select_tex_object(ctx
, texUnit
, target
);
1583 struct gl_texture_image
*texImage
=
1584 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1586 /* Setup or redefine the texture object, texture and texture
1587 * image. Don't populate yet.
1589 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1591 GL_RGBA
, CHAN_TYPE
, NULL
,
1592 &ctx
->DefaultPacking
, texObj
, texImage
);
1594 st_copy_texsubimage(ctx
, target
, level
,
1595 0, 0, 0, /* destX,Y,Z */
1596 x
, y
, width
, 1); /* src X, Y, size */
1601 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1602 GLenum internalFormat
,
1603 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1606 struct gl_texture_unit
*texUnit
=
1607 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1608 struct gl_texture_object
*texObj
=
1609 _mesa_select_tex_object(ctx
, texUnit
, target
);
1610 struct gl_texture_image
*texImage
=
1611 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1613 /* Setup or redefine the texture object, texture and texture
1614 * image. Don't populate yet.
1616 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1617 width
, height
, border
,
1618 GL_RGBA
, CHAN_TYPE
, NULL
,
1619 &ctx
->DefaultPacking
, texObj
, texImage
);
1621 st_copy_texsubimage(ctx
, target
, level
,
1622 0, 0, 0, /* destX,Y,Z */
1623 x
, y
, width
, height
); /* src X, Y, size */
1628 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1629 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1631 const GLint yoffset
= 0, zoffset
= 0;
1632 const GLsizei height
= 1;
1633 st_copy_texsubimage(ctx
, target
, level
,
1634 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1635 x
, y
, width
, height
); /* src X, Y, size */
1640 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1641 GLint xoffset
, GLint yoffset
,
1642 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1644 const GLint zoffset
= 0;
1645 st_copy_texsubimage(ctx
, target
, level
,
1646 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1647 x
, y
, width
, height
); /* src X, Y, size */
1652 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1653 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1654 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1656 st_copy_texsubimage(ctx
, target
, level
,
1657 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1658 x
, y
, width
, height
); /* src X, Y, size */
1663 * Compute which mipmap levels that really need to be sent to the hardware.
1664 * This depends on the base image size, GL_TEXTURE_MIN_LOD,
1665 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL.
1668 calculate_first_last_level(struct st_texture_object
*stObj
)
1670 struct gl_texture_object
*tObj
= &stObj
->base
;
1672 /* These must be signed values. MinLod and MaxLod can be negative numbers,
1673 * and having firstLevel and lastLevel as signed prevents the need for
1674 * extra sign checks.
1679 /* Yes, this looks overly complicated, but it's all needed.
1681 switch (tObj
->Target
) {
1685 case GL_TEXTURE_CUBE_MAP
:
1686 if (tObj
->MinFilter
== GL_NEAREST
|| tObj
->MinFilter
== GL_LINEAR
) {
1687 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL.
1689 firstLevel
= lastLevel
= tObj
->BaseLevel
;
1693 lastLevel
= MIN2(tObj
->MaxLevel
,
1694 (int) tObj
->Image
[0][tObj
->BaseLevel
]->WidthLog2
);
1697 case GL_TEXTURE_RECTANGLE_NV
:
1698 case GL_TEXTURE_4D_SGIS
:
1699 firstLevel
= lastLevel
= 0;
1705 stObj
->lastLevel
= lastLevel
;
1710 copy_image_data_to_texture(struct st_context
*st
,
1711 struct st_texture_object
*stObj
,
1713 struct st_texture_image
*stImage
)
1716 /* Copy potentially with the blitter:
1718 st_texture_image_copy(st
->pipe
,
1719 stObj
->pt
, dstLevel
, /* dest texture, level */
1720 stImage
->pt
, /* src texture */
1724 pipe_texture_reference(&stImage
->pt
, NULL
);
1726 else if (stImage
->base
.Data
) {
1727 assert(stImage
->base
.Data
!= NULL
);
1729 /* More straightforward upload.
1732 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1733 PIPE_TRANSFER_WRITE
);
1736 st_texture_image_data(st
,
1741 stImage
->base
.RowStride
*
1742 stObj
->pt
->block
.size
,
1743 stImage
->base
.RowStride
*
1744 stImage
->base
.Height
*
1745 stObj
->pt
->block
.size
);
1746 _mesa_align_free(stImage
->base
.Data
);
1747 stImage
->base
.Data
= NULL
;
1750 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
1755 * Called during state validation. When this function is finished,
1756 * the texture object should be ready for rendering.
1757 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1760 st_finalize_texture(GLcontext
*ctx
,
1761 struct pipe_context
*pipe
,
1762 struct gl_texture_object
*tObj
,
1763 GLboolean
*needFlush
)
1765 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1766 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1768 struct st_texture_image
*firstImage
;
1770 *needFlush
= GL_FALSE
;
1772 /* We know/require this is true by now:
1774 assert(stObj
->base
._Complete
);
1776 /* What levels must the texture include at a minimum?
1778 calculate_first_last_level(stObj
);
1779 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1781 /* If both firstImage and stObj point to a texture which can contain
1782 * all active images, favour firstImage. Note that because of the
1783 * completeness requirement, we know that the image dimensions
1786 if (firstImage
->pt
&&
1787 firstImage
->pt
!= stObj
->pt
&&
1788 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1789 pipe_texture_reference(&stObj
->pt
, firstImage
->pt
);
1792 /* FIXME: determine format block instead of cpp */
1793 if (firstImage
->base
.IsCompressed
) {
1794 cpp
= compressed_num_bytes(firstImage
->base
.TexFormat
->MesaFormat
);
1797 cpp
= firstImage
->base
.TexFormat
->TexelBytes
;
1800 /* If we already have a gallium texture, check that it matches the texture
1801 * object's format, target, size, num_levels, etc.
1804 const enum pipe_format fmt
=
1805 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
->MesaFormat
);
1806 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1807 stObj
->pt
->format
!= fmt
||
1808 stObj
->pt
->last_level
< stObj
->lastLevel
||
1809 stObj
->pt
->width
[0] != firstImage
->base
.Width2
||
1810 stObj
->pt
->height
[0] != firstImage
->base
.Height2
||
1811 stObj
->pt
->depth
[0] != firstImage
->base
.Depth2
||
1812 /* Nominal bytes per pixel: */
1813 stObj
->pt
->block
.size
/ stObj
->pt
->block
.width
!= cpp
)
1815 pipe_texture_reference(&stObj
->pt
, NULL
);
1816 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1820 /* May need to create a new gallium texture:
1823 const enum pipe_format fmt
=
1824 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
->MesaFormat
);
1825 GLuint usage
= default_usage(fmt
);
1827 stObj
->pt
= st_texture_create(ctx
->st
,
1828 gl_target_to_pipe(stObj
->base
.Target
),
1831 firstImage
->base
.Width2
,
1832 firstImage
->base
.Height2
,
1833 firstImage
->base
.Depth2
,
1837 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1842 /* Pull in any images not in the object's texture:
1844 for (face
= 0; face
< nr_faces
; face
++) {
1846 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1847 struct st_texture_image
*stImage
=
1848 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1850 /* Need to import images in main memory or held in other textures.
1852 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1853 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1854 *needFlush
= GL_TRUE
;
1864 * Returns pointer to a default/dummy texture.
1865 * This is typically used when the current shader has tex/sample instructions
1866 * but the user has not provided a (any) texture(s).
1868 struct gl_texture_object
*
1869 st_get_default_texture(struct st_context
*st
)
1871 if (!st
->default_texture
) {
1872 static const GLenum target
= GL_TEXTURE_2D
;
1873 GLubyte pixels
[16][16][4];
1874 struct gl_texture_object
*texObj
;
1875 struct gl_texture_image
*texImg
;
1878 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1879 * when attempting to sample incomplete textures.
1881 for (i
= 0; i
< 16; i
++) {
1882 for (j
= 0; j
< 16; j
++) {
1883 pixels
[i
][j
][0] = 0;
1884 pixels
[i
][j
][1] = 0;
1885 pixels
[i
][j
][2] = 0;
1886 pixels
[i
][j
][3] = 255;
1890 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1892 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1894 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1895 16, 16, 1, 0, /* w, h, d, border */
1898 st_TexImage(st
->ctx
, 2, target
,
1899 0, GL_RGBA
, /* level, intformat */
1900 16, 16, 1, 0, /* w, h, d, border */
1901 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1902 &st
->ctx
->DefaultPacking
,
1906 texObj
->MinFilter
= GL_NEAREST
;
1907 texObj
->MagFilter
= GL_NEAREST
;
1908 texObj
->_Complete
= GL_TRUE
;
1910 st
->default_texture
= texObj
;
1912 return st
->default_texture
;
1917 st_init_texture_functions(struct dd_function_table
*functions
)
1919 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1920 functions
->TexImage1D
= st_TexImage1D
;
1921 functions
->TexImage2D
= st_TexImage2D
;
1922 functions
->TexImage3D
= st_TexImage3D
;
1923 functions
->TexSubImage1D
= st_TexSubImage1D
;
1924 functions
->TexSubImage2D
= st_TexSubImage2D
;
1925 functions
->TexSubImage3D
= st_TexSubImage3D
;
1926 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1927 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1928 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1929 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1930 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1931 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1932 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1933 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1934 functions
->GenerateMipmap
= st_generate_mipmap
;
1936 functions
->GetTexImage
= st_GetTexImage
;
1938 /* compressed texture functions */
1939 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1940 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1941 functions
->CompressedTextureSize
= _mesa_compressed_texture_size
;
1943 functions
->NewTextureObject
= st_NewTextureObject
;
1944 functions
->NewTextureImage
= st_NewTextureImage
;
1945 functions
->DeleteTexture
= st_DeleteTextureObject
;
1946 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1947 functions
->UpdateTexturePalette
= 0;
1949 functions
->TextureMemCpy
= do_memcpy
;
1951 /* XXX Temporary until we can query pipe's texture sizes */
1952 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;