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 "pipe/p_shader_tokens.h"
60 #include "util/u_tile.h"
61 #include "util/u_blit.h"
62 #include "util/u_surface.h"
63 #include "util/u_math.h"
66 #define DBG if (0) printf
69 static enum pipe_texture_target
70 gl_target_to_pipe(GLenum target
)
74 return PIPE_TEXTURE_1D
;
77 case GL_TEXTURE_RECTANGLE_NV
:
78 return PIPE_TEXTURE_2D
;
81 return PIPE_TEXTURE_3D
;
83 case GL_TEXTURE_CUBE_MAP_ARB
:
84 return PIPE_TEXTURE_CUBE
;
94 * Return nominal bytes per texel for a compressed format, 0 for non-compressed
98 compressed_num_bytes(GLuint mesaFormat
)
101 #if FEATURE_texture_fxt1
102 case MESA_FORMAT_RGB_FXT1
:
103 case MESA_FORMAT_RGBA_FXT1
:
105 #if FEATURE_texture_s3tc
106 case MESA_FORMAT_RGB_DXT1
:
107 case MESA_FORMAT_RGBA_DXT1
:
109 case MESA_FORMAT_RGBA_DXT3
:
110 case MESA_FORMAT_RGBA_DXT5
:
120 is_compressed_mesa_format(const struct gl_texture_format
*format
)
122 switch (format
->MesaFormat
) {
123 case MESA_FORMAT_RGB_DXT1
:
124 case MESA_FORMAT_RGBA_DXT1
:
125 case MESA_FORMAT_RGBA_DXT3
:
126 case MESA_FORMAT_RGBA_DXT5
:
127 case MESA_FORMAT_SRGB_DXT1
:
128 case MESA_FORMAT_SRGBA_DXT1
:
129 case MESA_FORMAT_SRGBA_DXT3
:
130 case MESA_FORMAT_SRGBA_DXT5
:
138 /** called via ctx->Driver.NewTextureImage() */
139 static struct gl_texture_image
*
140 st_NewTextureImage(GLcontext
* ctx
)
142 DBG("%s\n", __FUNCTION__
);
144 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
148 /** called via ctx->Driver.NewTextureObject() */
149 static struct gl_texture_object
*
150 st_NewTextureObject(GLcontext
* ctx
, GLuint name
, GLenum target
)
152 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
154 DBG("%s\n", __FUNCTION__
);
155 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
160 /** called via ctx->Driver.DeleteTextureImage() */
162 st_DeleteTextureObject(GLcontext
*ctx
,
163 struct gl_texture_object
*texObj
)
165 struct st_texture_object
*stObj
= st_texture_object(texObj
);
167 pipe_texture_reference(&stObj
->pt
, NULL
);
169 _mesa_delete_texture_object(ctx
, texObj
);
173 /** called via ctx->Driver.FreeTexImageData() */
175 st_FreeTextureImageData(GLcontext
* ctx
, struct gl_texture_image
*texImage
)
177 struct st_texture_image
*stImage
= st_texture_image(texImage
);
179 DBG("%s\n", __FUNCTION__
);
182 pipe_texture_reference(&stImage
->pt
, NULL
);
185 if (texImage
->Data
) {
186 _mesa_align_free(texImage
->Data
);
187 texImage
->Data
= NULL
;
193 * From linux kernel i386 header files, copes with odd sizes better
194 * than COPY_DWORDS would:
195 * XXX Put this in src/mesa/main/imports.h ???
197 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
199 __memcpy(void *to
, const void *from
, size_t n
)
202 __asm__
__volatile__("rep ; movsl\n\t"
206 "1:\ttestb $1,%b4\n\t"
208 "movsb\n" "2:":"=&c"(d0
), "=&D"(d1
), "=&S"(d2
)
209 :"0"(n
/ 4), "q"(n
), "1"((long) to
), "2"((long) from
)
214 #define __memcpy(a,b,c) memcpy(a,b,c)
219 * The system memcpy (at least on ubuntu 5.10) has problems copying
220 * to agp (writecombined) memory from a source which isn't 64-byte
221 * aligned - there is a 4x performance falloff.
223 * The x86 __memcpy is immune to this but is slightly slower
224 * (10%-ish) than the system memcpy.
226 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
227 * isn't much faster than x86_memcpy for agp copies.
229 * TODO: switch dynamically.
232 do_memcpy(void *dest
, const void *src
, size_t n
)
234 if ((((unsigned long) src
) & 63) || (((unsigned long) dest
) & 63)) {
235 return __memcpy(dest
, src
, n
);
238 return memcpy(dest
, src
, n
);
243 * Return default texture usage bitmask for the given texture format.
246 default_usage(enum pipe_format fmt
)
248 GLuint usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
249 if (pf_is_depth_stencil(fmt
))
250 usage
|= PIPE_TEXTURE_USAGE_DEPTH_STENCIL
;
252 usage
|= PIPE_TEXTURE_USAGE_RENDER_TARGET
;
258 * Allocate a pipe_texture object for the given st_texture_object using
259 * the given st_texture_image to guess the mipmap size/levels.
262 * Otherwise, store it in memory if (Border != 0) or (any dimension ==
265 * Otherwise, if max_level >= level >= min_level, create texture with
266 * space for images from min_level down to max_level.
268 * Otherwise, create texture with space for images from (level 0)..(1x1).
269 * Consider pruning this texture at a validation if the saving is worth it.
272 guess_and_alloc_texture(struct st_context
*st
,
273 struct st_texture_object
*stObj
,
274 const struct st_texture_image
*stImage
)
278 GLuint width
= stImage
->base
.Width2
; /* size w/out border */
279 GLuint height
= stImage
->base
.Height2
;
280 GLuint depth
= stImage
->base
.Depth2
;
282 enum pipe_format fmt
;
284 DBG("%s\n", __FUNCTION__
);
289 (GLint
) stImage
->level
> stObj
->base
.BaseLevel
&&
290 (stImage
->base
.Width
== 1 ||
291 (stObj
->base
.Target
!= GL_TEXTURE_1D
&&
292 stImage
->base
.Height
== 1) ||
293 (stObj
->base
.Target
== GL_TEXTURE_3D
&&
294 stImage
->base
.Depth
== 1)))
297 /* If this image disrespects BaseLevel, allocate from level zero.
298 * Usually BaseLevel == 0, so it's unlikely to happen.
300 if ((GLint
) stImage
->level
< stObj
->base
.BaseLevel
)
303 firstLevel
= stObj
->base
.BaseLevel
;
306 /* Figure out image dimensions at start level.
308 for (i
= stImage
->level
; i
> firstLevel
; i
--) {
317 if (width
== 0 || height
== 0 || depth
== 0) {
318 /* no texture needed */
322 /* Guess a reasonable value for lastLevel. This is probably going
323 * to be wrong fairly often and might mean that we have to look at
324 * resizable buffers, or require that buffers implement lazy
325 * pagetable arrangements.
327 if ((stObj
->base
.MinFilter
== GL_NEAREST
||
328 stObj
->base
.MinFilter
== GL_LINEAR
||
329 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
330 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
331 stImage
->level
== firstLevel
) {
332 lastLevel
= firstLevel
;
335 GLuint l2width
= util_logbase2(width
);
336 GLuint l2height
= util_logbase2(height
);
337 GLuint l2depth
= util_logbase2(depth
);
338 lastLevel
= firstLevel
+ MAX2(MAX2(l2width
, l2height
), l2depth
);
341 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
->MesaFormat
);
343 usage
= default_usage(fmt
);
345 stObj
->pt
= st_texture_create(st
,
346 gl_target_to_pipe(stObj
->base
.Target
),
354 DBG("%s - success\n", __FUNCTION__
);
359 * Adjust pixel unpack params and image dimensions to strip off the
361 * Gallium doesn't support texture borders. They've seldem been used
362 * and seldom been implemented correctly anyway.
363 * \param unpackNew returns the new pixel unpack parameters
366 strip_texture_border(GLint border
,
367 GLint
*width
, GLint
*height
, GLint
*depth
,
368 const struct gl_pixelstore_attrib
*unpack
,
369 struct gl_pixelstore_attrib
*unpackNew
)
371 assert(border
> 0); /* sanity check */
373 *unpackNew
= *unpack
;
375 if (unpackNew
->RowLength
== 0)
376 unpackNew
->RowLength
= *width
;
378 if (depth
&& unpackNew
->ImageHeight
== 0)
379 unpackNew
->ImageHeight
= *height
;
381 unpackNew
->SkipPixels
+= border
;
383 unpackNew
->SkipRows
+= border
;
385 unpackNew
->SkipImages
+= border
;
388 *width
= *width
- 2 * border
;
389 if (height
&& *height
>= 3)
390 *height
= *height
- 2 * border
;
391 if (depth
&& *depth
>= 3)
392 *depth
= *depth
- 2 * border
;
397 * Try to do texture compression via rendering. If the Gallium driver
398 * can render into a compressed surface this will allow us to do texture
400 * \return GL_TRUE for success, GL_FALSE for failure
403 compress_with_blit(GLcontext
* ctx
,
404 GLenum target
, GLint level
,
405 GLint xoffset
, GLint yoffset
, GLint zoffset
,
406 GLint width
, GLint height
, GLint depth
,
407 GLenum format
, GLenum type
, const void *pixels
,
408 const struct gl_pixelstore_attrib
*unpack
,
409 struct gl_texture_image
*texImage
)
411 const GLuint dstImageOffsets
[1] = {0};
412 struct st_texture_image
*stImage
= st_texture_image(texImage
);
413 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
414 const struct gl_texture_format
*mesa_format
;
415 struct pipe_texture templ
;
416 struct pipe_texture
*src_tex
;
417 struct pipe_surface
*dst_surface
;
418 struct pipe_transfer
*tex_xfer
;
423 /* XXX: Can this happen? Should we assert? */
427 /* get destination surface (in the compressed texture) */
428 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
429 stImage
->face
, stImage
->level
, 0,
430 PIPE_BUFFER_USAGE_GPU_WRITE
);
432 /* can't render into this format (or other problem) */
436 /* Choose format for the temporary RGBA texture image.
438 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
443 /* Create the temporary source texture
445 memset(&templ
, 0, sizeof(templ
));
446 templ
.target
= PIPE_TEXTURE_2D
;
447 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
->MesaFormat
);
448 pf_get_block(templ
.format
, &templ
.block
);
449 templ
.width
[0] = width
;
450 templ
.height
[0] = height
;
452 templ
.last_level
= 0;
453 templ
.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
454 src_tex
= screen
->texture_create(screen
, &templ
);
459 /* Put user's tex data into the temporary texture
461 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
462 0, 0, 0, /* face, level are zero */
464 0, 0, width
, height
); /* x, y, w, h */
465 map
= screen
->transfer_map(screen
, tex_xfer
);
467 mesa_format
->StoreImage(ctx
, 2, GL_RGBA
, mesa_format
,
469 0, 0, 0, /* dest x/y/z offset */
470 tex_xfer
->stride
, /* dest row stride (bytes) */
471 dstImageOffsets
, /* image offsets (for 3D only) */
472 width
, height
, 1, /* size */
473 format
, type
, /* source format/type */
474 pixels
, /* source data */
475 unpack
); /* source data packing */
477 screen
->transfer_unmap(screen
, tex_xfer
);
478 screen
->tex_transfer_destroy(tex_xfer
);
480 /* copy / compress image */
481 util_blit_pixels_tex(ctx
->st
->blit
,
482 src_tex
, /* pipe_texture (src) */
483 0, 0, /* src x0, y0 */
484 width
, height
, /* src x1, y1 */
485 dst_surface
, /* pipe_surface (dst) */
486 xoffset
, yoffset
, /* dst x0, y0 */
487 xoffset
+ width
, /* dst x1 */
488 yoffset
+ height
, /* dst y1 */
490 PIPE_TEX_MIPFILTER_NEAREST
);
492 pipe_surface_reference(&dst_surface
, NULL
);
493 pipe_texture_reference(&src_tex
, NULL
);
500 * Do glTexImage1/2/3D().
503 st_TexImage(GLcontext
* ctx
,
505 GLenum target
, GLint level
,
506 GLint internalFormat
,
507 GLint width
, GLint height
, GLint depth
,
509 GLenum format
, GLenum type
, const void *pixels
,
510 const struct gl_pixelstore_attrib
*unpack
,
511 struct gl_texture_object
*texObj
,
512 struct gl_texture_image
*texImage
,
513 GLsizei imageSize
, GLboolean compressed_src
)
515 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
516 struct st_texture_object
*stObj
= st_texture_object(texObj
);
517 struct st_texture_image
*stImage
= st_texture_image(texImage
);
518 GLint postConvWidth
, postConvHeight
;
519 GLint texelBytes
, sizeInBytes
;
520 GLuint dstRowStride
= 0;
521 struct gl_pixelstore_attrib unpackNB
;
522 enum pipe_transfer_usage transfer_usage
= 0;
524 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
525 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
527 /* switch to "normal" */
528 if (stObj
->surface_based
) {
529 _mesa_clear_texture_object(ctx
, texObj
);
530 stObj
->surface_based
= GL_FALSE
;
533 /* gallium does not support texture borders, strip it off */
535 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
537 texImage
->Width
= width
;
538 texImage
->Height
= height
;
539 texImage
->Depth
= depth
;
540 texImage
->Border
= 0;
544 postConvWidth
= width
;
545 postConvHeight
= height
;
547 stImage
->face
= _mesa_tex_target_to_face(target
);
548 stImage
->level
= level
;
551 if (ctx
->_ImageTransferState
& IMAGE_CONVOLUTION_BIT
) {
552 _mesa_adjust_image_for_convolution(ctx
, dims
, &postConvWidth
,
557 /* choose the texture format */
558 texImage
->TexFormat
= st_ChooseTextureFormat(ctx
, internalFormat
,
561 _mesa_set_fetch_functions(texImage
, dims
);
563 if (texImage
->TexFormat
->TexelBytes
== 0) {
564 /* must be a compressed format */
566 texImage
->IsCompressed
= GL_TRUE
;
567 texImage
->CompressedSize
=
568 ctx
->Driver
.CompressedTextureSize(ctx
, texImage
->Width
,
569 texImage
->Height
, texImage
->Depth
,
570 texImage
->TexFormat
->MesaFormat
);
573 texelBytes
= texImage
->TexFormat
->TexelBytes
;
575 /* Minimum pitch of 32 bytes */
576 if (postConvWidth
* texelBytes
< 32) {
577 postConvWidth
= 32 / texelBytes
;
578 texImage
->RowStride
= postConvWidth
;
581 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
582 /*assert(texImage->RowStride == postConvWidth);*/
585 /* Release the reference to a potentially orphaned buffer.
586 * Release any old malloced memory.
589 pipe_texture_reference(&stImage
->pt
, NULL
);
590 assert(!texImage
->Data
);
592 else if (texImage
->Data
) {
593 _mesa_align_free(texImage
->Data
);
596 if (width
== 0 || height
== 0 || depth
== 0) {
597 /* stop after freeing old image */
601 /* If this is the only mipmap level in the texture, could call
602 * bmBufferData with NULL data to free the old block and avoid
603 * waiting on any outstanding fences.
606 if (stObj
->teximage_realloc
||
607 level
> (GLint
) stObj
->pt
->last_level
||
608 (stObj
->pt
->last_level
== level
&&
609 stObj
->pt
->target
!= PIPE_TEXTURE_CUBE
&&
610 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
611 stImage
->face
, stImage
->level
))) {
613 pipe_texture_reference(&stObj
->pt
, NULL
);
615 stObj
->teximage_realloc
= FALSE
;
620 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
622 /* Probably out of memory.
623 * Try flushing any pending rendering, then retry.
626 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
628 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
634 assert(!stImage
->pt
);
637 st_texture_match_image(stObj
->pt
, &stImage
->base
,
638 stImage
->face
, stImage
->level
)) {
640 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
645 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
647 /* st_CopyTexImage calls this function with pixels == NULL, with
648 * the expectation that the texture will be set up but nothing
649 * more will be done. This is where those calls return:
651 if (compressed_src
) {
652 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
654 "glCompressedTexImage");
657 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
659 pixels
, unpack
, "glTexImage");
662 /* Note: we can't check for pixels==NULL until after we've allocated
663 * memory for the texture.
666 /* See if we can do texture compression with a blit/render.
668 if (!compressed_src
&&
670 is_compressed_mesa_format(texImage
->TexFormat
) &&
671 screen
->is_format_supported(screen
,
674 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
678 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
679 format
, type
, pixels
, unpack
, texImage
)) {
685 if (format
== GL_DEPTH_COMPONENT
&&
686 pf_is_depth_and_stencil(stImage
->pt
->format
))
687 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
689 transfer_usage
= PIPE_TRANSFER_WRITE
;
691 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
692 transfer_usage
, 0, 0,
694 stImage
->base
.Height
);
695 if(stImage
->transfer
)
696 dstRowStride
= stImage
->transfer
->stride
;
699 /* Allocate regular memory and store the image there temporarily. */
700 if (texImage
->IsCompressed
) {
701 sizeInBytes
= texImage
->CompressedSize
;
703 _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
, width
);
707 dstRowStride
= postConvWidth
* texelBytes
;
708 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
711 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
714 if (!texImage
->Data
) {
715 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
722 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
723 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
725 /* Copy data. Would like to know when it's ok for us to eg. use
726 * the blitter to copy. Or, use the hardware to do the format
727 * conversion and copy:
729 if (compressed_src
) {
730 memcpy(texImage
->Data
, pixels
, imageSize
);
733 const GLuint srcImageStride
=
734 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
736 const GLubyte
*src
= (const GLubyte
*) pixels
;
738 for (i
= 0; i
< depth
; i
++) {
739 if (!texImage
->TexFormat
->StoreImage(ctx
, dims
,
740 texImage
->_BaseFormat
,
743 0, 0, 0, /* dstX/Y/Zoffset */
745 texImage
->ImageOffsets
,
747 format
, type
, src
, unpack
)) {
748 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
751 if (stImage
->pt
&& i
+ 1 < depth
) {
752 /* unmap this slice */
753 st_texture_image_unmap(ctx
->st
, stImage
);
754 /* map next slice of 3D texture */
755 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
756 transfer_usage
, 0, 0,
758 stImage
->base
.Height
);
759 src
+= srcImageStride
;
765 _mesa_unmap_teximage_pbo(ctx
, unpack
);
767 if (stImage
->pt
&& texImage
->Data
) {
768 st_texture_image_unmap(ctx
->st
, stImage
);
769 texImage
->Data
= NULL
;
772 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
773 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
779 st_TexImage3D(GLcontext
* ctx
,
780 GLenum target
, GLint level
,
781 GLint internalFormat
,
782 GLint width
, GLint height
, GLint depth
,
784 GLenum format
, GLenum type
, const void *pixels
,
785 const struct gl_pixelstore_attrib
*unpack
,
786 struct gl_texture_object
*texObj
,
787 struct gl_texture_image
*texImage
)
789 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
790 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
796 st_TexImage2D(GLcontext
* ctx
,
797 GLenum target
, GLint level
,
798 GLint internalFormat
,
799 GLint width
, GLint height
, GLint border
,
800 GLenum format
, GLenum type
, const void *pixels
,
801 const struct gl_pixelstore_attrib
*unpack
,
802 struct gl_texture_object
*texObj
,
803 struct gl_texture_image
*texImage
)
805 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
806 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
811 st_TexImage1D(GLcontext
* ctx
,
812 GLenum target
, GLint level
,
813 GLint internalFormat
,
814 GLint width
, GLint border
,
815 GLenum format
, GLenum type
, const void *pixels
,
816 const struct gl_pixelstore_attrib
*unpack
,
817 struct gl_texture_object
*texObj
,
818 struct gl_texture_image
*texImage
)
820 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
821 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
826 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
827 GLint internalFormat
,
828 GLint width
, GLint height
, GLint border
,
829 GLsizei imageSize
, const GLvoid
*data
,
830 struct gl_texture_object
*texObj
,
831 struct gl_texture_image
*texImage
)
833 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
834 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
840 * glGetTexImage() helper: decompress a compressed texture by rendering
841 * a textured quad. Store the results in the user's buffer.
844 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
845 GLenum format
, GLenum type
, GLvoid
*pixels
,
846 struct gl_texture_object
*texObj
,
847 struct gl_texture_image
*texImage
)
849 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
850 struct st_texture_image
*stImage
= st_texture_image(texImage
);
851 const GLuint width
= texImage
->Width
;
852 const GLuint height
= texImage
->Height
;
853 struct pipe_surface
*dst_surface
;
854 struct pipe_texture
*dst_texture
;
855 struct pipe_transfer
*tex_xfer
;
857 /* create temp / dest surface */
858 if (!util_create_rgba_surface(screen
, width
, height
,
859 &dst_texture
, &dst_surface
)) {
860 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
861 "in decompress_with_blit()");
865 /* blit/render/decompress */
866 util_blit_pixels_tex(ctx
->st
->blit
,
867 stImage
->pt
, /* pipe_texture (src) */
868 0, 0, /* src x0, y0 */
869 width
, height
, /* src x1, y1 */
870 dst_surface
, /* pipe_surface (dst) */
871 0, 0, /* dst x0, y0 */
872 width
, height
, /* dst x1, y1 */
874 PIPE_TEX_MIPFILTER_NEAREST
);
876 /* map the dst_surface so we can read from it */
877 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
878 dst_texture
, 0, 0, 0,
880 0, 0, width
, height
);
882 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
884 /* copy/pack data into user buffer */
885 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
887 const uint bytesPerRow
= width
* pf_get_size(stImage
->pt
->format
);
888 ubyte
*map
= screen
->transfer_map(screen
, tex_xfer
);
890 for (row
= 0; row
< height
; row
++) {
891 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
892 height
, format
, type
, row
, 0);
893 memcpy(dest
, map
, bytesPerRow
);
894 map
+= tex_xfer
->stride
;
896 screen
->transfer_unmap(screen
, tex_xfer
);
899 /* format translation via floats */
901 for (row
= 0; row
< height
; row
++) {
902 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
903 GLfloat rgba
[4 * MAX_WIDTH
];
904 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
905 height
, format
, type
, row
, 0);
907 /* get float[4] rgba row from surface */
908 pipe_get_tile_rgba(tex_xfer
, 0, row
, width
, 1, rgba
);
910 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
911 type
, dest
, &ctx
->Pack
, transferOps
);
915 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
917 /* destroy the temp / dest surface */
918 util_destroy_rgba_surface(dst_texture
, dst_surface
);
924 * Need to map texture image into memory before copying image data,
928 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
929 GLenum format
, GLenum type
, GLvoid
* pixels
,
930 struct gl_texture_object
*texObj
,
931 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
933 struct st_texture_image
*stImage
= st_texture_image(texImage
);
934 const GLuint dstImageStride
=
935 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
941 pf_is_compressed(stImage
->pt
->format
) &&
943 /* Need to decompress the texture.
944 * We'll do this by rendering a textured quad.
945 * Note that we only expect RGBA formats (no Z/depth formats).
947 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
954 /* Image is stored in hardware format in a buffer managed by the
955 * kernel. Need to explicitly map and unmap it.
957 unsigned face
= _mesa_tex_target_to_face(target
);
959 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
962 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
963 PIPE_TRANSFER_READ
, 0, 0,
965 stImage
->base
.Height
);
966 texImage
->RowStride
= stImage
->transfer
->stride
/ stImage
->pt
->block
.size
;
969 /* Otherwise, the image should actually be stored in
970 * texImage->Data. This is pretty confusing for
971 * everybody, I'd much prefer to separate the two functions of
972 * texImage->Data - storage for texture images in main memory
973 * and access (ie mappings) of images. In other words, we'd
974 * create a new texImage->Map field and leave Data simply for
977 assert(texImage
->Data
);
980 depth
= texImage
->Depth
;
983 dest
= (GLubyte
*) pixels
;
985 for (i
= 0; i
< depth
; i
++) {
986 if (compressed_dst
) {
987 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
991 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
995 if (stImage
->pt
&& i
+ 1 < depth
) {
996 /* unmap this slice */
997 st_texture_image_unmap(ctx
->st
, stImage
);
998 /* map next slice of 3D texture */
999 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
1000 PIPE_TRANSFER_READ
, 0, 0,
1001 stImage
->base
.Width
,
1002 stImage
->base
.Height
);
1003 dest
+= dstImageStride
;
1007 texImage
->Depth
= depth
;
1011 st_texture_image_unmap(ctx
->st
, stImage
);
1012 texImage
->Data
= NULL
;
1018 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
1019 GLenum format
, GLenum type
, GLvoid
* pixels
,
1020 struct gl_texture_object
*texObj
,
1021 struct gl_texture_image
*texImage
)
1023 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
1029 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
1031 struct gl_texture_object
*texObj
,
1032 struct gl_texture_image
*texImage
)
1034 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1041 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1042 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1043 GLint width
, GLint height
, GLint depth
,
1044 GLenum format
, GLenum type
, const void *pixels
,
1045 const struct gl_pixelstore_attrib
*packing
,
1046 struct gl_texture_object
*texObj
,
1047 struct gl_texture_image
*texImage
)
1049 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1050 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1051 GLuint dstRowStride
;
1052 const GLuint srcImageStride
=
1053 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1056 /* init to silence warning only: */
1057 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1059 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1060 _mesa_lookup_enum_by_nr(target
),
1061 level
, xoffset
, yoffset
, width
, height
);
1064 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1065 type
, pixels
, packing
, "glTexSubImage2D");
1069 /* See if we can do texture compression with a blit/render.
1071 if (!ctx
->Mesa_DXTn
&&
1072 is_compressed_mesa_format(texImage
->TexFormat
) &&
1073 screen
->is_format_supported(screen
,
1074 stImage
->pt
->format
,
1075 stImage
->pt
->target
,
1076 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1077 if (compress_with_blit(ctx
, target
, level
,
1078 xoffset
, yoffset
, zoffset
,
1079 width
, height
, depth
,
1080 format
, type
, pixels
, packing
, texImage
)) {
1085 /* Map buffer if necessary. Need to lock to prevent other contexts
1086 * from uploading the buffer under us.
1089 unsigned face
= _mesa_tex_target_to_face(target
);
1091 if (format
== GL_DEPTH_COMPONENT
&&
1092 pf_is_depth_and_stencil(stImage
->pt
->format
))
1093 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1095 transfer_usage
= PIPE_TRANSFER_WRITE
;
1097 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1099 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1105 if (!texImage
->Data
) {
1106 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1110 src
= (const GLubyte
*) pixels
;
1111 dstRowStride
= stImage
->transfer
->stride
;
1113 for (i
= 0; i
< depth
; i
++) {
1114 if (!texImage
->TexFormat
->StoreImage(ctx
, dims
, texImage
->_BaseFormat
,
1115 texImage
->TexFormat
,
1119 texImage
->ImageOffsets
,
1121 format
, type
, src
, packing
)) {
1122 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1125 if (stImage
->pt
&& i
+ 1 < depth
) {
1126 /* unmap this slice */
1127 st_texture_image_unmap(ctx
->st
, stImage
);
1128 /* map next slice of 3D texture */
1129 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1134 src
+= srcImageStride
;
1139 _mesa_unmap_teximage_pbo(ctx
, packing
);
1142 st_texture_image_unmap(ctx
->st
, stImage
);
1143 texImage
->Data
= NULL
;
1146 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
1147 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1154 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1155 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1156 GLsizei width
, GLsizei height
, GLsizei depth
,
1157 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1158 const struct gl_pixelstore_attrib
*packing
,
1159 struct gl_texture_object
*texObj
,
1160 struct gl_texture_image
*texImage
)
1162 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1163 width
, height
, depth
, format
, type
,
1164 pixels
, packing
, texObj
, texImage
);
1169 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1170 GLint xoffset
, GLint yoffset
,
1171 GLsizei width
, GLsizei height
,
1172 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1173 const struct gl_pixelstore_attrib
*packing
,
1174 struct gl_texture_object
*texObj
,
1175 struct gl_texture_image
*texImage
)
1177 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1178 width
, height
, 1, format
, type
,
1179 pixels
, packing
, texObj
, texImage
);
1184 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1185 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1186 const GLvoid
* pixels
,
1187 const struct gl_pixelstore_attrib
*packing
,
1188 struct gl_texture_object
*texObj
,
1189 struct gl_texture_image
*texImage
)
1191 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1192 format
, type
, pixels
, packing
, texObj
, texImage
);
1197 st_CompressedTexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1198 GLint xoffset
, GLsizei width
,
1200 GLsizei imageSize
, const GLvoid
*data
,
1201 struct gl_texture_object
*texObj
,
1202 struct gl_texture_image
*texImage
)
1209 st_CompressedTexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1210 GLint xoffset
, GLint yoffset
,
1211 GLsizei width
, GLint height
,
1213 GLsizei imageSize
, const GLvoid
*data
,
1214 struct gl_texture_object
*texObj
,
1215 struct gl_texture_image
*texImage
)
1217 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1218 struct pipe_format_block block
;
1224 unsigned face
= _mesa_tex_target_to_face(target
);
1226 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1227 PIPE_TRANSFER_WRITE
);
1228 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
1229 PIPE_TRANSFER_WRITE
,
1233 block
= stImage
->pt
->block
;
1234 srcBlockStride
= pf_get_stride(&block
, width
);
1235 dstBlockStride
= stImage
->transfer
->stride
;
1237 assert(stImage
->pt
);
1238 /* TODO find good values for block and strides */
1239 /* TODO also adjust texImage->data for yoffset/xoffset */
1243 if (!texImage
->Data
) {
1244 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1248 assert(xoffset
% block
.width
== 0);
1249 assert(yoffset
% block
.height
== 0);
1250 assert(width
% block
.width
== 0);
1251 assert(height
% block
.height
== 0);
1253 for (y
= 0; y
< height
; y
+= block
.height
) {
1254 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1255 const char *src
= (const char*)data
+ srcBlockStride
* pf_get_nblocksy(&block
, y
);
1256 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* pf_get_nblocksy(&block
, y
);
1257 memcpy(dst
, src
, pf_get_stride(&block
, width
));
1261 st_texture_image_unmap(ctx
->st
, stImage
);
1262 texImage
->Data
= NULL
;
1268 st_CompressedTexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1269 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1270 GLsizei width
, GLint height
, GLint depth
,
1272 GLsizei imageSize
, const GLvoid
*data
,
1273 struct gl_texture_object
*texObj
,
1274 struct gl_texture_image
*texImage
)
1282 * Do a CopyTexSubImage operation using a read transfer from the source,
1283 * a write transfer to the destination and get_tile()/put_tile() to access
1284 * the pixels/texels.
1286 * Note: srcY=0=TOP of renderbuffer
1289 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1290 struct st_renderbuffer
*strb
,
1291 struct st_texture_image
*stImage
,
1293 GLint destX
, GLint destY
, GLint destZ
,
1294 GLint srcX
, GLint srcY
,
1295 GLsizei width
, GLsizei height
)
1297 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1298 struct pipe_screen
*screen
= pipe
->screen
;
1299 struct pipe_transfer
*src_trans
;
1301 enum pipe_transfer_usage transfer_usage
;
1303 assert(width
<= MAX_WIDTH
);
1305 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1306 srcY
= strb
->Base
.Height
- srcY
- height
;
1309 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1316 if (baseFormat
== GL_DEPTH_COMPONENT
&&
1317 pf_is_depth_and_stencil(stImage
->pt
->format
))
1318 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1320 transfer_usage
= PIPE_TRANSFER_WRITE
;
1322 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1325 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, transfer_usage
,
1326 destX
, destY
, width
, height
);
1328 if (baseFormat
== GL_DEPTH_COMPONENT
||
1329 baseFormat
== GL_DEPTH24_STENCIL8
) {
1330 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1331 ctx
->Pixel
.DepthBias
!= 0.0F
);
1334 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1335 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1344 /* To avoid a large temp memory allocation, do copy row by row */
1345 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1346 uint data
[MAX_WIDTH
];
1347 pipe_get_tile_z(src_trans
, 0, srcY
, width
, 1, data
);
1349 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1351 pipe_put_tile_z(stImage
->transfer
, 0, row
, width
, 1, data
);
1357 (GLfloat
*) _mesa_malloc(width
* height
* 4 * sizeof(GLfloat
));
1359 if (tempSrc
&& texDest
) {
1360 const GLint dims
= 2;
1361 const GLint dstRowStride
= stImage
->transfer
->stride
;
1362 struct gl_texture_image
*texImage
= &stImage
->base
;
1363 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1365 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1366 unpack
.Invert
= GL_TRUE
;
1369 /* get float/RGBA image from framebuffer */
1370 /* XXX this usually involves a lot of int/float conversion.
1371 * try to avoid that someday.
1373 pipe_get_tile_rgba(src_trans
, 0, 0, width
, height
, tempSrc
);
1375 /* Store into texture memory.
1376 * Note that this does some special things such as pixel transfer
1377 * ops and format conversion. In particular, if the dest tex format
1378 * is actually RGBA but the user created the texture as GL_RGB we
1379 * need to fill-in/override the alpha channel with 1.0.
1381 texImage
->TexFormat
->StoreImage(ctx
, dims
,
1382 texImage
->_BaseFormat
,
1383 texImage
->TexFormat
,
1387 texImage
->ImageOffsets
,
1389 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1393 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1397 _mesa_free(tempSrc
);
1400 st_texture_image_unmap(ctx
->st
, stImage
);
1401 screen
->tex_transfer_destroy(src_trans
);
1406 compatible_src_dst_formats(const struct gl_renderbuffer
*src
,
1407 const struct gl_texture_image
*dst
)
1409 const GLenum srcFormat
= src
->_BaseFormat
;
1410 const GLenum dstLogicalFormat
= dst
->_BaseFormat
;
1412 if (srcFormat
== dstLogicalFormat
) {
1413 /* This is the same as matching_base_formats, which should
1414 * always pass, as it did previously.
1416 return TGSI_WRITEMASK_XYZW
;
1418 else if (srcFormat
== GL_RGBA
&&
1419 dstLogicalFormat
== GL_RGB
) {
1420 /* Add a single special case to cope with RGBA->RGB transfers,
1421 * setting A to 1.0 to cope with situations where the RGB
1422 * destination is actually stored as RGBA.
1424 return TGSI_WRITEMASK_XYZ
; /* A ==> 1.0 */
1436 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1437 * Note that the region to copy has already been clipped so we know we
1438 * won't read from outside the source renderbuffer's bounds.
1440 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1443 st_copy_texsubimage(GLcontext
*ctx
,
1444 GLenum target
, GLint level
,
1445 GLint destX
, GLint destY
, GLint destZ
,
1446 GLint srcX
, GLint srcY
,
1447 GLsizei width
, GLsizei height
)
1449 struct gl_texture_unit
*texUnit
=
1450 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1451 struct gl_texture_object
*texObj
=
1452 _mesa_select_tex_object(ctx
, texUnit
, target
);
1453 struct gl_texture_image
*texImage
=
1454 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1455 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1456 const GLenum texBaseFormat
= texImage
->InternalFormat
;
1457 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1458 struct st_renderbuffer
*strb
;
1459 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1460 struct pipe_screen
*screen
= pipe
->screen
;
1461 enum pipe_format dest_format
, src_format
;
1462 GLboolean use_fallback
= GL_TRUE
;
1463 GLboolean matching_base_formats
;
1464 GLuint format_writemask
;
1465 struct pipe_surface
*dest_surface
= NULL
;
1466 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1468 /* any rendering in progress must flushed before we grab the fb image */
1469 st_flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
1471 /* make sure finalize_textures has been called?
1473 if (0) st_validate_state(ctx
->st
);
1475 /* determine if copying depth or color data */
1476 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1477 texBaseFormat
== GL_DEPTH24_STENCIL8
) {
1478 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1480 else if (texBaseFormat
== GL_DEPTH_STENCIL_EXT
) {
1481 strb
= st_renderbuffer(fb
->_StencilBuffer
);
1484 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1485 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1488 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1489 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1517 if (width
< 0 || height
< 0)
1522 assert(strb
->surface
);
1523 assert(stImage
->pt
);
1525 src_format
= strb
->surface
->format
;
1526 dest_format
= stImage
->pt
->format
;
1529 * Determine if the src framebuffer and dest texture have the same
1530 * base format. We need this to detect a case such as the framebuffer
1531 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1532 * texture format stores RGBA we need to set A=1 (overriding the
1533 * framebuffer's alpha values). We can't do that with the blit or
1534 * textured-quad paths.
1536 matching_base_formats
= (strb
->Base
._BaseFormat
== texImage
->_BaseFormat
);
1537 format_writemask
= compatible_src_dst_formats(&strb
->Base
, texImage
);
1539 if (ctx
->_ImageTransferState
== 0x0) {
1541 if (matching_base_formats
&&
1542 src_format
== dest_format
&&
1545 /* use surface_copy() / blit */
1547 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1548 stImage
->face
, stImage
->level
,
1550 PIPE_BUFFER_USAGE_GPU_WRITE
);
1552 /* for surface_copy(), y=0=top, always */
1553 pipe
->surface_copy(pipe
,
1562 use_fallback
= GL_FALSE
;
1564 else if (format_writemask
&&
1565 screen
->is_format_supported(screen
, src_format
,
1567 PIPE_TEXTURE_USAGE_SAMPLER
,
1569 screen
->is_format_supported(screen
, dest_format
,
1571 PIPE_TEXTURE_USAGE_RENDER_TARGET
,
1573 /* draw textured quad to do the copy */
1576 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1577 stImage
->face
, stImage
->level
,
1579 PIPE_BUFFER_USAGE_GPU_WRITE
);
1582 srcY1
= strb
->Base
.Height
- srcY
- height
;
1583 srcY0
= srcY1
+ height
;
1587 srcY1
= srcY0
+ height
;
1589 util_blit_pixels_writemask(ctx
->st
->blit
,
1592 srcX
+ width
, srcY1
,
1595 destX
+ width
, destY
+ height
,
1596 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1598 use_fallback
= GL_FALSE
;
1602 pipe_surface_reference(&dest_surface
, NULL
);
1606 /* software fallback */
1607 fallback_copy_texsubimage(ctx
, target
, level
,
1608 strb
, stImage
, texBaseFormat
,
1609 destX
, destY
, destZ
,
1610 srcX
, srcY
, width
, height
);
1613 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
1614 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1621 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1622 GLenum internalFormat
,
1623 GLint x
, GLint y
, GLsizei width
, GLint border
)
1625 struct gl_texture_unit
*texUnit
=
1626 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1627 struct gl_texture_object
*texObj
=
1628 _mesa_select_tex_object(ctx
, texUnit
, target
);
1629 struct gl_texture_image
*texImage
=
1630 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1632 /* Setup or redefine the texture object, texture and texture
1633 * image. Don't populate yet.
1635 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1637 GL_RGBA
, CHAN_TYPE
, NULL
,
1638 &ctx
->DefaultPacking
, texObj
, texImage
);
1640 st_copy_texsubimage(ctx
, target
, level
,
1641 0, 0, 0, /* destX,Y,Z */
1642 x
, y
, width
, 1); /* src X, Y, size */
1647 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1648 GLenum internalFormat
,
1649 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1652 struct gl_texture_unit
*texUnit
=
1653 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1654 struct gl_texture_object
*texObj
=
1655 _mesa_select_tex_object(ctx
, texUnit
, target
);
1656 struct gl_texture_image
*texImage
=
1657 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1659 /* Setup or redefine the texture object, texture and texture
1660 * image. Don't populate yet.
1662 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1663 width
, height
, border
,
1664 GL_RGBA
, CHAN_TYPE
, NULL
,
1665 &ctx
->DefaultPacking
, texObj
, texImage
);
1667 st_copy_texsubimage(ctx
, target
, level
,
1668 0, 0, 0, /* destX,Y,Z */
1669 x
, y
, width
, height
); /* src X, Y, size */
1674 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1675 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1677 const GLint yoffset
= 0, zoffset
= 0;
1678 const GLsizei height
= 1;
1679 st_copy_texsubimage(ctx
, target
, level
,
1680 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1681 x
, y
, width
, height
); /* src X, Y, size */
1686 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1687 GLint xoffset
, GLint yoffset
,
1688 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1690 const GLint zoffset
= 0;
1691 st_copy_texsubimage(ctx
, target
, level
,
1692 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1693 x
, y
, width
, height
); /* src X, Y, size */
1698 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1699 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1700 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1702 st_copy_texsubimage(ctx
, target
, level
,
1703 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1704 x
, y
, width
, height
); /* src X, Y, size */
1709 * Compute which mipmap levels that really need to be sent to the hardware.
1710 * This depends on the base image size, GL_TEXTURE_MIN_LOD,
1711 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL.
1714 calculate_first_last_level(struct st_texture_object
*stObj
)
1716 struct gl_texture_object
*tObj
= &stObj
->base
;
1718 /* These must be signed values. MinLod and MaxLod can be negative numbers,
1719 * and having firstLevel and lastLevel as signed prevents the need for
1720 * extra sign checks.
1725 /* Yes, this looks overly complicated, but it's all needed.
1727 switch (tObj
->Target
) {
1731 case GL_TEXTURE_CUBE_MAP
:
1732 if (tObj
->MinFilter
== GL_NEAREST
|| tObj
->MinFilter
== GL_LINEAR
) {
1733 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL.
1735 firstLevel
= lastLevel
= tObj
->BaseLevel
;
1739 lastLevel
= MIN2(tObj
->MaxLevel
,
1740 (int) tObj
->Image
[0][tObj
->BaseLevel
]->WidthLog2
);
1743 case GL_TEXTURE_RECTANGLE_NV
:
1744 case GL_TEXTURE_4D_SGIS
:
1745 firstLevel
= lastLevel
= 0;
1751 stObj
->lastLevel
= lastLevel
;
1756 copy_image_data_to_texture(struct st_context
*st
,
1757 struct st_texture_object
*stObj
,
1759 struct st_texture_image
*stImage
)
1762 /* Copy potentially with the blitter:
1764 st_texture_image_copy(st
->pipe
,
1765 stObj
->pt
, dstLevel
, /* dest texture, level */
1766 stImage
->pt
, /* src texture */
1770 pipe_texture_reference(&stImage
->pt
, NULL
);
1772 else if (stImage
->base
.Data
) {
1773 assert(stImage
->base
.Data
!= NULL
);
1775 /* More straightforward upload.
1778 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1779 PIPE_TRANSFER_WRITE
);
1782 st_texture_image_data(st
,
1787 stImage
->base
.RowStride
*
1788 stObj
->pt
->block
.size
,
1789 stImage
->base
.RowStride
*
1790 stImage
->base
.Height
*
1791 stObj
->pt
->block
.size
);
1792 _mesa_align_free(stImage
->base
.Data
);
1793 stImage
->base
.Data
= NULL
;
1796 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
1801 * Called during state validation. When this function is finished,
1802 * the texture object should be ready for rendering.
1803 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1806 st_finalize_texture(GLcontext
*ctx
,
1807 struct pipe_context
*pipe
,
1808 struct gl_texture_object
*tObj
,
1809 GLboolean
*needFlush
)
1811 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1812 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1814 struct st_texture_image
*firstImage
;
1816 *needFlush
= GL_FALSE
;
1818 /* We know/require this is true by now:
1820 assert(stObj
->base
._Complete
);
1822 /* What levels must the texture include at a minimum?
1824 calculate_first_last_level(stObj
);
1825 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1827 /* If both firstImage and stObj point to a texture which can contain
1828 * all active images, favour firstImage. Note that because of the
1829 * completeness requirement, we know that the image dimensions
1832 if (firstImage
->pt
&&
1833 firstImage
->pt
!= stObj
->pt
&&
1834 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1835 pipe_texture_reference(&stObj
->pt
, firstImage
->pt
);
1838 /* FIXME: determine format block instead of cpp */
1839 if (firstImage
->base
.IsCompressed
) {
1840 cpp
= compressed_num_bytes(firstImage
->base
.TexFormat
->MesaFormat
);
1843 cpp
= firstImage
->base
.TexFormat
->TexelBytes
;
1846 /* If we already have a gallium texture, check that it matches the texture
1847 * object's format, target, size, num_levels, etc.
1850 const enum pipe_format fmt
=
1851 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
->MesaFormat
);
1852 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1853 stObj
->pt
->format
!= fmt
||
1854 stObj
->pt
->last_level
< stObj
->lastLevel
||
1855 stObj
->pt
->width
[0] != firstImage
->base
.Width2
||
1856 stObj
->pt
->height
[0] != firstImage
->base
.Height2
||
1857 stObj
->pt
->depth
[0] != firstImage
->base
.Depth2
||
1858 /* Nominal bytes per pixel: */
1859 stObj
->pt
->block
.size
/ stObj
->pt
->block
.width
!= cpp
)
1861 pipe_texture_reference(&stObj
->pt
, NULL
);
1862 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1866 /* May need to create a new gallium texture:
1869 const enum pipe_format fmt
=
1870 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
->MesaFormat
);
1871 GLuint usage
= default_usage(fmt
);
1873 stObj
->pt
= st_texture_create(ctx
->st
,
1874 gl_target_to_pipe(stObj
->base
.Target
),
1877 firstImage
->base
.Width2
,
1878 firstImage
->base
.Height2
,
1879 firstImage
->base
.Depth2
,
1883 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1888 /* Pull in any images not in the object's texture:
1890 for (face
= 0; face
< nr_faces
; face
++) {
1892 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1893 struct st_texture_image
*stImage
=
1894 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1896 /* Need to import images in main memory or held in other textures.
1898 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1899 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1900 *needFlush
= GL_TRUE
;
1910 * Returns pointer to a default/dummy texture.
1911 * This is typically used when the current shader has tex/sample instructions
1912 * but the user has not provided a (any) texture(s).
1914 struct gl_texture_object
*
1915 st_get_default_texture(struct st_context
*st
)
1917 if (!st
->default_texture
) {
1918 static const GLenum target
= GL_TEXTURE_2D
;
1919 GLubyte pixels
[16][16][4];
1920 struct gl_texture_object
*texObj
;
1921 struct gl_texture_image
*texImg
;
1924 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1925 * when attempting to sample incomplete textures.
1927 for (i
= 0; i
< 16; i
++) {
1928 for (j
= 0; j
< 16; j
++) {
1929 pixels
[i
][j
][0] = 0;
1930 pixels
[i
][j
][1] = 0;
1931 pixels
[i
][j
][2] = 0;
1932 pixels
[i
][j
][3] = 255;
1936 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1938 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1940 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1941 16, 16, 1, 0, /* w, h, d, border */
1944 st_TexImage(st
->ctx
, 2, target
,
1945 0, GL_RGBA
, /* level, intformat */
1946 16, 16, 1, 0, /* w, h, d, border */
1947 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1948 &st
->ctx
->DefaultPacking
,
1952 texObj
->MinFilter
= GL_NEAREST
;
1953 texObj
->MagFilter
= GL_NEAREST
;
1954 texObj
->_Complete
= GL_TRUE
;
1956 st
->default_texture
= texObj
;
1958 return st
->default_texture
;
1963 st_init_texture_functions(struct dd_function_table
*functions
)
1965 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1966 functions
->TexImage1D
= st_TexImage1D
;
1967 functions
->TexImage2D
= st_TexImage2D
;
1968 functions
->TexImage3D
= st_TexImage3D
;
1969 functions
->TexSubImage1D
= st_TexSubImage1D
;
1970 functions
->TexSubImage2D
= st_TexSubImage2D
;
1971 functions
->TexSubImage3D
= st_TexSubImage3D
;
1972 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1973 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1974 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1975 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1976 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1977 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1978 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1979 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1980 functions
->GenerateMipmap
= st_generate_mipmap
;
1982 functions
->GetTexImage
= st_GetTexImage
;
1984 /* compressed texture functions */
1985 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1986 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1987 functions
->CompressedTextureSize
= _mesa_compressed_texture_size
;
1989 functions
->NewTextureObject
= st_NewTextureObject
;
1990 functions
->NewTextureImage
= st_NewTextureImage
;
1991 functions
->DeleteTexture
= st_DeleteTextureObject
;
1992 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1993 functions
->UpdateTexturePalette
= 0;
1995 functions
->TextureMemCpy
= do_memcpy
;
1997 /* XXX Temporary until we can query pipe's texture sizes */
1998 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;