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
->level
== firstLevel
) {
340 lastLevel
= firstLevel
;
343 GLuint l2width
= logbase2(width
);
344 GLuint l2height
= logbase2(height
);
345 GLuint l2depth
= logbase2(depth
);
346 lastLevel
= firstLevel
+ MAX2(MAX2(l2width
, l2height
), l2depth
);
349 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
->MesaFormat
);
351 usage
= default_usage(fmt
);
353 stObj
->pt
= st_texture_create(st
,
354 gl_target_to_pipe(stObj
->base
.Target
),
362 DBG("%s - success\n", __FUNCTION__
);
367 * Adjust pixel unpack params and image dimensions to strip off the
369 * Gallium doesn't support texture borders. They've seldem been used
370 * and seldom been implemented correctly anyway.
371 * \param unpackNew returns the new pixel unpack parameters
374 strip_texture_border(GLint border
,
375 GLint
*width
, GLint
*height
, GLint
*depth
,
376 const struct gl_pixelstore_attrib
*unpack
,
377 struct gl_pixelstore_attrib
*unpackNew
)
379 assert(border
> 0); /* sanity check */
381 *unpackNew
= *unpack
;
383 if (unpackNew
->RowLength
== 0)
384 unpackNew
->RowLength
= *width
;
386 if (depth
&& unpackNew
->ImageHeight
== 0)
387 unpackNew
->ImageHeight
= *height
;
389 unpackNew
->SkipPixels
+= border
;
391 unpackNew
->SkipRows
+= border
;
393 unpackNew
->SkipImages
+= border
;
396 *width
= *width
- 2 * border
;
397 if (height
&& *height
>= 3)
398 *height
= *height
- 2 * border
;
399 if (depth
&& *depth
>= 3)
400 *depth
= *depth
- 2 * border
;
405 * Try to do texture compression via rendering. If the Gallium driver
406 * can render into a compressed surface this will allow us to do texture
408 * \return GL_TRUE for success, GL_FALSE for failure
411 compress_with_blit(GLcontext
* ctx
,
412 GLenum target
, GLint level
,
413 GLint xoffset
, GLint yoffset
, GLint zoffset
,
414 GLint width
, GLint height
, GLint depth
,
415 GLenum format
, GLenum type
, const void *pixels
,
416 const struct gl_pixelstore_attrib
*unpack
,
417 struct gl_texture_image
*texImage
)
419 const GLuint dstImageOffsets
[1] = {0};
420 struct st_texture_image
*stImage
= st_texture_image(texImage
);
421 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
422 const struct gl_texture_format
*mesa_format
;
423 struct pipe_texture templ
;
424 struct pipe_texture
*src_tex
;
425 struct pipe_surface
*dst_surface
;
426 struct pipe_transfer
*tex_xfer
;
431 /* XXX: Can this happen? Should we assert? */
435 /* get destination surface (in the compressed texture) */
436 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
437 stImage
->face
, stImage
->level
, 0,
438 PIPE_BUFFER_USAGE_GPU_WRITE
);
440 /* can't render into this format (or other problem) */
444 /* Choose format for the temporary RGBA texture image.
446 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
451 /* Create the temporary source texture
453 memset(&templ
, 0, sizeof(templ
));
454 templ
.target
= PIPE_TEXTURE_2D
;
455 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
->MesaFormat
);
456 pf_get_block(templ
.format
, &templ
.block
);
457 templ
.width
[0] = width
;
458 templ
.height
[0] = height
;
460 templ
.last_level
= 0;
461 templ
.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
462 src_tex
= screen
->texture_create(screen
, &templ
);
467 /* Put user's tex data into the temporary texture
469 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
470 0, 0, 0, /* face, level are zero */
472 0, 0, width
, height
); /* x, y, w, h */
473 map
= screen
->transfer_map(screen
, tex_xfer
);
475 mesa_format
->StoreImage(ctx
, 2, GL_RGBA
, mesa_format
,
477 0, 0, 0, /* dest x/y/z offset */
478 tex_xfer
->stride
, /* dest row stride (bytes) */
479 dstImageOffsets
, /* image offsets (for 3D only) */
480 width
, height
, 1, /* size */
481 format
, type
, /* source format/type */
482 pixels
, /* source data */
483 unpack
); /* source data packing */
485 screen
->transfer_unmap(screen
, tex_xfer
);
486 screen
->tex_transfer_destroy(tex_xfer
);
488 /* copy / compress image */
489 util_blit_pixels_tex(ctx
->st
->blit
,
490 src_tex
, /* pipe_texture (src) */
491 0, 0, /* src x0, y0 */
492 width
, height
, /* src x1, y1 */
493 dst_surface
, /* pipe_surface (dst) */
494 xoffset
, yoffset
, /* dst x0, y0 */
495 xoffset
+ width
, /* dst x1 */
496 yoffset
+ height
, /* dst y1 */
498 PIPE_TEX_MIPFILTER_NEAREST
);
500 pipe_surface_reference(&dst_surface
, NULL
);
501 pipe_texture_reference(&src_tex
, NULL
);
508 * Do glTexImage1/2/3D().
511 st_TexImage(GLcontext
* ctx
,
513 GLenum target
, GLint level
,
514 GLint internalFormat
,
515 GLint width
, GLint height
, GLint depth
,
517 GLenum format
, GLenum type
, const void *pixels
,
518 const struct gl_pixelstore_attrib
*unpack
,
519 struct gl_texture_object
*texObj
,
520 struct gl_texture_image
*texImage
,
521 GLsizei imageSize
, GLboolean compressed_src
)
523 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
524 struct st_texture_object
*stObj
= st_texture_object(texObj
);
525 struct st_texture_image
*stImage
= st_texture_image(texImage
);
526 GLint postConvWidth
, postConvHeight
;
527 GLint texelBytes
, sizeInBytes
;
529 struct gl_pixelstore_attrib unpackNB
;
531 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
532 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
534 /* gallium does not support texture borders, strip it off */
536 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
538 texImage
->Width
= width
;
539 texImage
->Height
= height
;
540 texImage
->Depth
= depth
;
541 texImage
->Border
= 0;
545 postConvWidth
= width
;
546 postConvHeight
= height
;
548 stImage
->face
= _mesa_tex_target_to_face(target
);
549 stImage
->level
= level
;
552 if (ctx
->_ImageTransferState
& IMAGE_CONVOLUTION_BIT
) {
553 _mesa_adjust_image_for_convolution(ctx
, dims
, &postConvWidth
,
558 /* choose the texture format */
559 texImage
->TexFormat
= st_ChooseTextureFormat(ctx
, internalFormat
,
562 _mesa_set_fetch_functions(texImage
, dims
);
564 if (texImage
->TexFormat
->TexelBytes
== 0) {
565 /* must be a compressed format */
567 texImage
->IsCompressed
= GL_TRUE
;
568 texImage
->CompressedSize
=
569 ctx
->Driver
.CompressedTextureSize(ctx
, texImage
->Width
,
570 texImage
->Height
, texImage
->Depth
,
571 texImage
->TexFormat
->MesaFormat
);
574 texelBytes
= texImage
->TexFormat
->TexelBytes
;
576 /* Minimum pitch of 32 bytes */
577 if (postConvWidth
* texelBytes
< 32) {
578 postConvWidth
= 32 / texelBytes
;
579 texImage
->RowStride
= postConvWidth
;
582 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
583 /*assert(texImage->RowStride == postConvWidth);*/
586 /* Release the reference to a potentially orphaned buffer.
587 * Release any old malloced memory.
590 pipe_texture_reference(&stImage
->pt
, NULL
);
591 assert(!texImage
->Data
);
593 else if (texImage
->Data
) {
594 _mesa_align_free(texImage
->Data
);
597 if (width
== 0 || height
== 0 || depth
== 0) {
598 /* stop after freeing old image */
602 /* If this is the only mipmap level in the texture, could call
603 * bmBufferData with NULL data to free the old block and avoid
604 * waiting on any outstanding fences.
607 if (stObj
->teximage_realloc
||
608 level
> (GLint
) stObj
->pt
->last_level
||
609 (stObj
->pt
->last_level
== level
&&
610 stObj
->pt
->target
!= PIPE_TEXTURE_CUBE
&&
611 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
612 stImage
->face
, stImage
->level
))) {
614 pipe_texture_reference(&stObj
->pt
, NULL
);
616 stObj
->teximage_realloc
= FALSE
;
621 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
623 /* Probably out of memory.
624 * Try flushing any pending rendering, then retry.
627 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
629 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
635 assert(!stImage
->pt
);
638 st_texture_match_image(stObj
->pt
, &stImage
->base
,
639 stImage
->face
, stImage
->level
)) {
641 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
646 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
648 /* st_CopyTexImage calls this function with pixels == NULL, with
649 * the expectation that the texture will be set up but nothing
650 * more will be done. This is where those calls return:
652 if (compressed_src
) {
653 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
655 "glCompressedTexImage");
658 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
660 pixels
, unpack
, "glTexImage");
665 /* See if we can do texture compression with a blit/render.
667 if (!compressed_src
&&
669 is_compressed_mesa_format(texImage
->TexFormat
) &&
670 screen
->is_format_supported(screen
,
673 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
674 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
675 format
, type
, pixels
, unpack
, texImage
)) {
681 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
682 PIPE_TRANSFER_WRITE
, 0, 0,
684 stImage
->base
.Height
);
685 if(stImage
->transfer
)
686 dstRowStride
= stImage
->transfer
->stride
;
689 /* Allocate regular memory and store the image there temporarily. */
690 if (texImage
->IsCompressed
) {
691 sizeInBytes
= texImage
->CompressedSize
;
693 _mesa_compressed_row_stride(texImage
->TexFormat
->MesaFormat
, width
);
697 dstRowStride
= postConvWidth
* texelBytes
;
698 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
701 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
704 if (!texImage
->Data
) {
705 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
709 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
710 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
712 /* Copy data. Would like to know when it's ok for us to eg. use
713 * the blitter to copy. Or, use the hardware to do the format
714 * conversion and copy:
716 if (compressed_src
) {
717 memcpy(texImage
->Data
, pixels
, imageSize
);
720 const GLuint srcImageStride
=
721 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
723 const GLubyte
*src
= (const GLubyte
*) pixels
;
725 for (i
= 0; i
< depth
; i
++) {
726 if (!texImage
->TexFormat
->StoreImage(ctx
, dims
,
727 texImage
->_BaseFormat
,
730 0, 0, 0, /* dstX/Y/Zoffset */
732 texImage
->ImageOffsets
,
734 format
, type
, src
, unpack
)) {
735 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
738 if (stImage
->pt
&& i
+ 1 < depth
) {
739 /* unmap this slice */
740 st_texture_image_unmap(ctx
->st
, stImage
);
741 /* map next slice of 3D texture */
742 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
743 PIPE_TRANSFER_WRITE
, 0, 0,
745 stImage
->base
.Height
);
746 src
+= srcImageStride
;
751 _mesa_unmap_teximage_pbo(ctx
, unpack
);
754 if (stImage
->pt
&& texImage
->Data
) {
755 st_texture_image_unmap(ctx
->st
, stImage
);
756 texImage
->Data
= NULL
;
759 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
760 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
766 st_TexImage3D(GLcontext
* ctx
,
767 GLenum target
, GLint level
,
768 GLint internalFormat
,
769 GLint width
, GLint height
, GLint depth
,
771 GLenum format
, GLenum type
, const void *pixels
,
772 const struct gl_pixelstore_attrib
*unpack
,
773 struct gl_texture_object
*texObj
,
774 struct gl_texture_image
*texImage
)
776 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
777 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
783 st_TexImage2D(GLcontext
* ctx
,
784 GLenum target
, GLint level
,
785 GLint internalFormat
,
786 GLint width
, GLint height
, GLint border
,
787 GLenum format
, GLenum type
, const void *pixels
,
788 const struct gl_pixelstore_attrib
*unpack
,
789 struct gl_texture_object
*texObj
,
790 struct gl_texture_image
*texImage
)
792 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
793 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
798 st_TexImage1D(GLcontext
* ctx
,
799 GLenum target
, GLint level
,
800 GLint internalFormat
,
801 GLint width
, GLint border
,
802 GLenum format
, GLenum type
, const void *pixels
,
803 const struct gl_pixelstore_attrib
*unpack
,
804 struct gl_texture_object
*texObj
,
805 struct gl_texture_image
*texImage
)
807 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
808 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
813 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
814 GLint internalFormat
,
815 GLint width
, GLint height
, GLint border
,
816 GLsizei imageSize
, const GLvoid
*data
,
817 struct gl_texture_object
*texObj
,
818 struct gl_texture_image
*texImage
)
820 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
821 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
827 * glGetTexImage() helper: decompress a compressed texture by rendering
828 * a textured quad. Store the results in the user's buffer.
831 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
832 GLenum format
, GLenum type
, GLvoid
*pixels
,
833 struct gl_texture_object
*texObj
,
834 struct gl_texture_image
*texImage
)
836 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
837 struct st_texture_image
*stImage
= st_texture_image(texImage
);
838 const GLuint width
= texImage
->Width
;
839 const GLuint height
= texImage
->Height
;
840 struct pipe_surface
*dst_surface
;
841 struct pipe_texture
*dst_texture
;
842 struct pipe_transfer
*tex_xfer
;
844 /* create temp / dest surface */
845 if (!util_create_rgba_surface(screen
, width
, height
,
846 &dst_texture
, &dst_surface
)) {
847 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
848 "in decompress_with_blit()");
852 /* blit/render/decompress */
853 util_blit_pixels_tex(ctx
->st
->blit
,
854 stImage
->pt
, /* pipe_texture (src) */
855 0, 0, /* src x0, y0 */
856 width
, height
, /* src x1, y1 */
857 dst_surface
, /* pipe_surface (dst) */
858 0, 0, /* dst x0, y0 */
859 width
, height
, /* dst x1, y1 */
861 PIPE_TEX_MIPFILTER_NEAREST
);
863 /* map the dst_surface so we can read from it */
864 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
865 dst_texture
, 0, 0, 0,
867 0, 0, width
, height
);
869 pixels
= _mesa_map_readpix_pbo(ctx
, &ctx
->Pack
, pixels
);
871 /* copy/pack data into user buffer */
872 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
874 const uint bytesPerRow
= width
* pf_get_size(stImage
->pt
->format
);
875 ubyte
*map
= screen
->transfer_map(screen
, tex_xfer
);
877 for (row
= 0; row
< height
; row
++) {
878 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
879 height
, format
, type
, row
, 0);
880 memcpy(dest
, map
, bytesPerRow
);
881 map
+= tex_xfer
->stride
;
883 screen
->transfer_unmap(screen
, tex_xfer
);
886 /* format translation via floats */
888 for (row
= 0; row
< height
; row
++) {
889 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
890 GLfloat rgba
[4 * MAX_WIDTH
];
891 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
892 height
, format
, type
, row
, 0);
894 /* get float[4] rgba row from surface */
895 pipe_get_tile_rgba(tex_xfer
, 0, row
, width
, 1, rgba
);
897 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
898 type
, dest
, &ctx
->Pack
, transferOps
);
902 _mesa_unmap_readpix_pbo(ctx
, &ctx
->Pack
);
904 /* destroy the temp / dest surface */
905 util_destroy_rgba_surface(dst_texture
, dst_surface
);
911 * Need to map texture image into memory before copying image data,
915 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
916 GLenum format
, GLenum type
, GLvoid
* pixels
,
917 struct gl_texture_object
*texObj
,
918 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
920 struct st_texture_image
*stImage
= st_texture_image(texImage
);
921 const GLuint dstImageStride
=
922 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
928 pf_is_compressed(stImage
->pt
->format
) &&
930 /* Need to decompress the texture.
931 * We'll do this by rendering a textured quad.
932 * Note that we only expect RGBA formats (no Z/depth formats).
934 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
941 /* Image is stored in hardware format in a buffer managed by the
942 * kernel. Need to explicitly map and unmap it.
945 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, level
,
948 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
949 PIPE_TRANSFER_READ
, 0, 0,
951 stImage
->base
.Height
);
952 texImage
->RowStride
= stImage
->transfer
->stride
/ stImage
->pt
->block
.size
;
955 /* Otherwise, the image should actually be stored in
956 * texImage->Data. This is pretty confusing for
957 * everybody, I'd much prefer to separate the two functions of
958 * texImage->Data - storage for texture images in main memory
959 * and access (ie mappings) of images. In other words, we'd
960 * create a new texImage->Map field and leave Data simply for
963 assert(texImage
->Data
);
966 depth
= texImage
->Depth
;
969 dest
= (GLubyte
*) pixels
;
971 for (i
= 0; i
< depth
; i
++) {
972 if (compressed_dst
) {
973 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
977 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
981 if (stImage
->pt
&& i
+ 1 < depth
) {
982 /* unmap this slice */
983 st_texture_image_unmap(ctx
->st
, stImage
);
984 /* map next slice of 3D texture */
985 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
986 PIPE_TRANSFER_READ
, 0, 0,
988 stImage
->base
.Height
);
989 dest
+= dstImageStride
;
993 texImage
->Depth
= depth
;
997 st_texture_image_unmap(ctx
->st
, stImage
);
998 texImage
->Data
= NULL
;
1004 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
1005 GLenum format
, GLenum type
, GLvoid
* pixels
,
1006 struct gl_texture_object
*texObj
,
1007 struct gl_texture_image
*texImage
)
1009 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
1015 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
1017 struct gl_texture_object
*texObj
,
1018 struct gl_texture_image
*texImage
)
1020 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1027 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1028 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1029 GLint width
, GLint height
, GLint depth
,
1030 GLenum format
, GLenum type
, const void *pixels
,
1031 const struct gl_pixelstore_attrib
*packing
,
1032 struct gl_texture_object
*texObj
,
1033 struct gl_texture_image
*texImage
)
1035 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1036 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1037 GLuint dstRowStride
;
1038 const GLuint srcImageStride
=
1039 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1043 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1044 _mesa_lookup_enum_by_nr(target
),
1045 level
, xoffset
, yoffset
, width
, height
);
1048 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1049 type
, pixels
, packing
, "glTexSubImage2D");
1053 /* See if we can do texture compression with a blit/render.
1055 if (!ctx
->Mesa_DXTn
&&
1056 is_compressed_mesa_format(texImage
->TexFormat
) &&
1057 screen
->is_format_supported(screen
,
1058 stImage
->pt
->format
,
1059 stImage
->pt
->target
,
1060 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1061 if (compress_with_blit(ctx
, target
, level
,
1062 xoffset
, yoffset
, zoffset
,
1063 width
, height
, depth
,
1064 format
, type
, pixels
, packing
, texImage
)) {
1069 /* Map buffer if necessary. Need to lock to prevent other contexts
1070 * from uploading the buffer under us.
1073 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, level
,
1074 PIPE_TRANSFER_WRITE
);
1075 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1076 PIPE_TRANSFER_WRITE
,
1081 if (!texImage
->Data
) {
1082 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1086 src
= (const GLubyte
*) pixels
;
1087 dstRowStride
= stImage
->transfer
->stride
;
1089 for (i
= 0; i
< depth
; i
++) {
1090 if (!texImage
->TexFormat
->StoreImage(ctx
, dims
, texImage
->_BaseFormat
,
1091 texImage
->TexFormat
,
1095 texImage
->ImageOffsets
,
1097 format
, type
, src
, packing
)) {
1098 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1101 if (stImage
->pt
&& i
+ 1 < depth
) {
1102 /* unmap this slice */
1103 st_texture_image_unmap(ctx
->st
, stImage
);
1104 /* map next slice of 3D texture */
1105 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1107 PIPE_TRANSFER_WRITE
,
1110 src
+= srcImageStride
;
1114 _mesa_unmap_teximage_pbo(ctx
, packing
);
1118 st_texture_image_unmap(ctx
->st
, stImage
);
1119 texImage
->Data
= NULL
;
1122 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
1123 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1130 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1131 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1132 GLsizei width
, GLsizei height
, GLsizei depth
,
1133 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1134 const struct gl_pixelstore_attrib
*packing
,
1135 struct gl_texture_object
*texObj
,
1136 struct gl_texture_image
*texImage
)
1138 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1139 width
, height
, depth
, format
, type
,
1140 pixels
, packing
, texObj
, texImage
);
1145 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1146 GLint xoffset
, GLint yoffset
,
1147 GLsizei width
, GLsizei height
,
1148 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1149 const struct gl_pixelstore_attrib
*packing
,
1150 struct gl_texture_object
*texObj
,
1151 struct gl_texture_image
*texImage
)
1153 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1154 width
, height
, 1, format
, type
,
1155 pixels
, packing
, texObj
, texImage
);
1160 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1161 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1162 const GLvoid
* pixels
,
1163 const struct gl_pixelstore_attrib
*packing
,
1164 struct gl_texture_object
*texObj
,
1165 struct gl_texture_image
*texImage
)
1167 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1168 format
, type
, pixels
, packing
, texObj
, texImage
);
1174 * Do a CopyTexSubImage operation using a read transfer from the source,
1175 * a write transfer to the destination and get_tile()/put_tile() to access
1176 * the pixels/texels.
1178 * Note: srcY=0=TOP of renderbuffer
1181 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1182 struct st_renderbuffer
*strb
,
1183 struct st_texture_image
*stImage
,
1185 GLint destX
, GLint destY
, GLint destZ
,
1186 GLint srcX
, GLint srcY
,
1187 GLsizei width
, GLsizei height
)
1189 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1190 struct pipe_screen
*screen
= pipe
->screen
;
1191 struct pipe_transfer
*src_trans
;
1194 assert(width
<= MAX_WIDTH
);
1196 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1197 srcY
= strb
->Base
.Height
- srcY
- height
;
1200 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1207 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1208 PIPE_TRANSFER_WRITE
);
1210 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, PIPE_TRANSFER_WRITE
,
1211 destX
, destY
, width
, height
);
1213 if (baseFormat
== GL_DEPTH_COMPONENT
||
1214 baseFormat
== GL_DEPTH24_STENCIL8
) {
1215 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1216 ctx
->Pixel
.DepthBias
!= 0.0F
);
1219 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1220 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1229 /* To avoid a large temp memory allocation, do copy row by row */
1230 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1231 uint data
[MAX_WIDTH
];
1232 pipe_get_tile_z(src_trans
, 0, srcY
, width
, 1, data
);
1234 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1236 pipe_put_tile_z(stImage
->transfer
, 0, row
, width
, 1, data
);
1242 (GLfloat
*) _mesa_malloc(width
* height
* 4 * sizeof(GLfloat
));
1244 if (tempSrc
&& texDest
) {
1245 const GLint dims
= 2;
1246 const GLint dstRowStride
= stImage
->transfer
->stride
;
1247 struct gl_texture_image
*texImage
= &stImage
->base
;
1248 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1250 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1251 unpack
.Invert
= GL_TRUE
;
1254 /* get float/RGBA image from framebuffer */
1255 /* XXX this usually involves a lot of int/float conversion.
1256 * try to avoid that someday.
1258 pipe_get_tile_rgba(src_trans
, 0, 0, width
, height
, tempSrc
);
1260 /* Store into texture memory.
1261 * Note that this does some special things such as pixel transfer
1262 * ops and format conversion. In particular, if the dest tex format
1263 * is actually RGBA but the user created the texture as GL_RGB we
1264 * need to fill-in/override the alpha channel with 1.0.
1266 texImage
->TexFormat
->StoreImage(ctx
, dims
,
1267 texImage
->_BaseFormat
,
1268 texImage
->TexFormat
,
1272 texImage
->ImageOffsets
,
1274 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1278 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1282 _mesa_free(tempSrc
);
1285 st_texture_image_unmap(ctx
->st
, stImage
);
1286 screen
->tex_transfer_destroy(src_trans
);
1291 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1292 * Note that the region to copy has already been clipped so we know we
1293 * won't read from outside the source renderbuffer's bounds.
1295 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1298 st_copy_texsubimage(GLcontext
*ctx
,
1299 GLenum target
, GLint level
,
1300 GLint destX
, GLint destY
, GLint destZ
,
1301 GLint srcX
, GLint srcY
,
1302 GLsizei width
, GLsizei height
)
1304 struct gl_texture_unit
*texUnit
=
1305 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1306 struct gl_texture_object
*texObj
=
1307 _mesa_select_tex_object(ctx
, texUnit
, target
);
1308 struct gl_texture_image
*texImage
=
1309 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1310 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1311 const GLenum texBaseFormat
= texImage
->InternalFormat
;
1312 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1313 struct st_renderbuffer
*strb
;
1314 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1315 struct pipe_screen
*screen
= pipe
->screen
;
1316 enum pipe_format dest_format
, src_format
;
1317 GLboolean use_fallback
= GL_TRUE
;
1318 GLboolean matching_base_formats
;
1320 /* make sure finalize_textures has been called?
1322 if (0) st_validate_state(ctx
->st
);
1324 /* determine if copying depth or color data */
1325 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1326 texBaseFormat
== GL_DEPTH24_STENCIL8
) {
1327 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1329 else if (texBaseFormat
== GL_DEPTH_STENCIL_EXT
) {
1330 strb
= st_renderbuffer(fb
->_StencilBuffer
);
1333 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1334 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1337 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1338 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1366 if (width
< 0 || height
< 0)
1371 assert(strb
->surface
);
1372 assert(stImage
->pt
);
1374 src_format
= strb
->surface
->format
;
1375 dest_format
= stImage
->pt
->format
;
1378 * Determine if the src framebuffer and dest texture have the same
1379 * base format. We need this to detect a case such as the framebuffer
1380 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1381 * texture format stores RGBA we need to set A=1 (overriding the
1382 * framebuffer's alpha values). We can't do that with the blit or
1383 * textured-quad paths.
1385 matching_base_formats
= (strb
->Base
._BaseFormat
== texImage
->_BaseFormat
);
1387 if (matching_base_formats
&& ctx
->_ImageTransferState
== 0x0) {
1388 /* try potential hardware path */
1389 struct pipe_surface
*dest_surface
= NULL
;
1390 boolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1392 if (src_format
== dest_format
&& !do_flip
) {
1393 /* use surface_copy() / blit */
1395 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1396 stImage
->face
, stImage
->level
,
1398 PIPE_BUFFER_USAGE_GPU_WRITE
);
1400 /* for surface_copy(), y=0=top, always */
1401 pipe
->surface_copy(pipe
,
1410 use_fallback
= GL_FALSE
;
1412 else if (screen
->is_format_supported(screen
, src_format
,
1414 PIPE_TEXTURE_USAGE_SAMPLER
,
1416 screen
->is_format_supported(screen
, dest_format
,
1418 PIPE_TEXTURE_USAGE_RENDER_TARGET
,
1420 /* draw textured quad to do the copy */
1423 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1424 stImage
->face
, stImage
->level
,
1426 PIPE_BUFFER_USAGE_GPU_WRITE
);
1429 srcY1
= strb
->Base
.Height
- srcY
- height
;
1430 srcY0
= srcY1
+ height
;
1434 srcY1
= srcY0
+ height
;
1436 util_blit_pixels(ctx
->st
->blit
,
1439 srcX
+ width
, srcY1
,
1442 destX
+ width
, destY
+ height
,
1443 0.0, PIPE_TEX_MIPFILTER_NEAREST
);
1444 use_fallback
= GL_FALSE
;
1448 pipe_surface_reference(&dest_surface
, NULL
);
1452 /* software fallback */
1453 fallback_copy_texsubimage(ctx
, target
, level
,
1454 strb
, stImage
, texBaseFormat
,
1455 destX
, destY
, destZ
,
1456 srcX
, srcY
, width
, height
);
1459 if (level
== texObj
->BaseLevel
&& texObj
->GenerateMipmap
) {
1460 ctx
->Driver
.GenerateMipmap(ctx
, target
, texObj
);
1467 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1468 GLenum internalFormat
,
1469 GLint x
, GLint y
, GLsizei width
, GLint border
)
1471 struct gl_texture_unit
*texUnit
=
1472 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1473 struct gl_texture_object
*texObj
=
1474 _mesa_select_tex_object(ctx
, texUnit
, target
);
1475 struct gl_texture_image
*texImage
=
1476 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1478 /* Setup or redefine the texture object, texture and texture
1479 * image. Don't populate yet.
1481 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1483 GL_RGBA
, CHAN_TYPE
, NULL
,
1484 &ctx
->DefaultPacking
, texObj
, texImage
);
1486 st_copy_texsubimage(ctx
, target
, level
,
1487 0, 0, 0, /* destX,Y,Z */
1488 x
, y
, width
, 1); /* src X, Y, size */
1493 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1494 GLenum internalFormat
,
1495 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1498 struct gl_texture_unit
*texUnit
=
1499 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1500 struct gl_texture_object
*texObj
=
1501 _mesa_select_tex_object(ctx
, texUnit
, target
);
1502 struct gl_texture_image
*texImage
=
1503 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1505 /* Setup or redefine the texture object, texture and texture
1506 * image. Don't populate yet.
1508 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1509 width
, height
, border
,
1510 GL_RGBA
, CHAN_TYPE
, NULL
,
1511 &ctx
->DefaultPacking
, texObj
, texImage
);
1513 st_copy_texsubimage(ctx
, target
, level
,
1514 0, 0, 0, /* destX,Y,Z */
1515 x
, y
, width
, height
); /* src X, Y, size */
1520 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1521 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1523 const GLint yoffset
= 0, zoffset
= 0;
1524 const GLsizei height
= 1;
1525 st_copy_texsubimage(ctx
, target
, level
,
1526 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1527 x
, y
, width
, height
); /* src X, Y, size */
1532 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1533 GLint xoffset
, GLint yoffset
,
1534 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1536 const GLint zoffset
= 0;
1537 st_copy_texsubimage(ctx
, target
, level
,
1538 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1539 x
, y
, width
, height
); /* src X, Y, size */
1544 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1545 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1546 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1548 st_copy_texsubimage(ctx
, target
, level
,
1549 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1550 x
, y
, width
, height
); /* src X, Y, size */
1555 * Compute which mipmap levels that really need to be sent to the hardware.
1556 * This depends on the base image size, GL_TEXTURE_MIN_LOD,
1557 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL.
1560 calculate_first_last_level(struct st_texture_object
*stObj
)
1562 struct gl_texture_object
*tObj
= &stObj
->base
;
1564 /* These must be signed values. MinLod and MaxLod can be negative numbers,
1565 * and having firstLevel and lastLevel as signed prevents the need for
1566 * extra sign checks.
1571 /* Yes, this looks overly complicated, but it's all needed.
1573 switch (tObj
->Target
) {
1577 case GL_TEXTURE_CUBE_MAP
:
1578 if (tObj
->MinFilter
== GL_NEAREST
|| tObj
->MinFilter
== GL_LINEAR
) {
1579 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL.
1581 firstLevel
= lastLevel
= tObj
->BaseLevel
;
1585 lastLevel
= MIN2(tObj
->MaxLevel
,
1586 (int) tObj
->Image
[0][tObj
->BaseLevel
]->WidthLog2
);
1589 case GL_TEXTURE_RECTANGLE_NV
:
1590 case GL_TEXTURE_4D_SGIS
:
1591 firstLevel
= lastLevel
= 0;
1597 stObj
->lastLevel
= lastLevel
;
1602 copy_image_data_to_texture(struct st_context
*st
,
1603 struct st_texture_object
*stObj
,
1605 struct st_texture_image
*stImage
)
1608 /* Copy potentially with the blitter:
1610 st_texture_image_copy(st
->pipe
,
1611 stObj
->pt
, dstLevel
, /* dest texture, level */
1612 stImage
->pt
, /* src texture */
1616 pipe_texture_reference(&stImage
->pt
, NULL
);
1618 else if (stImage
->base
.Data
) {
1619 assert(stImage
->base
.Data
!= NULL
);
1621 /* More straightforward upload.
1624 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1625 PIPE_TRANSFER_WRITE
);
1628 st_texture_image_data(st
,
1633 stImage
->base
.RowStride
*
1634 stObj
->pt
->block
.size
,
1635 stImage
->base
.RowStride
*
1636 stImage
->base
.Height
*
1637 stObj
->pt
->block
.size
);
1638 _mesa_align_free(stImage
->base
.Data
);
1639 stImage
->base
.Data
= NULL
;
1642 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
1647 * Called during state validation. When this function is finished,
1648 * the texture object should be ready for rendering.
1649 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1652 st_finalize_texture(GLcontext
*ctx
,
1653 struct pipe_context
*pipe
,
1654 struct gl_texture_object
*tObj
,
1655 GLboolean
*needFlush
)
1657 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1658 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1660 struct st_texture_image
*firstImage
;
1662 *needFlush
= GL_FALSE
;
1664 /* We know/require this is true by now:
1666 assert(stObj
->base
._Complete
);
1668 /* What levels must the texture include at a minimum?
1670 calculate_first_last_level(stObj
);
1671 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1673 /* If both firstImage and stObj point to a texture which can contain
1674 * all active images, favour firstImage. Note that because of the
1675 * completeness requirement, we know that the image dimensions
1678 if (firstImage
->pt
&&
1679 firstImage
->pt
!= stObj
->pt
&&
1680 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1681 pipe_texture_reference(&stObj
->pt
, firstImage
->pt
);
1684 /* FIXME: determine format block instead of cpp */
1685 if (firstImage
->base
.IsCompressed
) {
1686 cpp
= compressed_num_bytes(firstImage
->base
.TexFormat
->MesaFormat
);
1689 cpp
= firstImage
->base
.TexFormat
->TexelBytes
;
1692 /* If we already have a gallium texture, check that it matches the texture
1693 * object's format, target, size, num_levels, etc.
1696 const enum pipe_format fmt
=
1697 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
->MesaFormat
);
1698 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1699 stObj
->pt
->format
!= fmt
||
1700 stObj
->pt
->last_level
< stObj
->lastLevel
||
1701 stObj
->pt
->width
[0] != firstImage
->base
.Width2
||
1702 stObj
->pt
->height
[0] != firstImage
->base
.Height2
||
1703 stObj
->pt
->depth
[0] != firstImage
->base
.Depth2
||
1704 /* Nominal bytes per pixel: */
1705 stObj
->pt
->block
.size
/ stObj
->pt
->block
.width
!= cpp
)
1707 pipe_texture_reference(&stObj
->pt
, NULL
);
1708 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1712 /* May need to create a new gallium texture:
1715 const enum pipe_format fmt
=
1716 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
->MesaFormat
);
1717 GLuint usage
= default_usage(fmt
);
1719 stObj
->pt
= st_texture_create(ctx
->st
,
1720 gl_target_to_pipe(stObj
->base
.Target
),
1723 firstImage
->base
.Width2
,
1724 firstImage
->base
.Height2
,
1725 firstImage
->base
.Depth2
,
1729 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1734 /* Pull in any images not in the object's texture:
1736 for (face
= 0; face
< nr_faces
; face
++) {
1738 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1739 struct st_texture_image
*stImage
=
1740 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1742 /* Need to import images in main memory or held in other textures.
1744 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1745 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1746 *needFlush
= GL_TRUE
;
1756 * Returns pointer to a default/dummy texture.
1757 * This is typically used when the current shader has tex/sample instructions
1758 * but the user has not provided a (any) texture(s).
1760 struct gl_texture_object
*
1761 st_get_default_texture(struct st_context
*st
)
1763 if (!st
->default_texture
) {
1764 static const GLenum target
= GL_TEXTURE_2D
;
1765 GLubyte pixels
[16][16][4];
1766 struct gl_texture_object
*texObj
;
1767 struct gl_texture_image
*texImg
;
1770 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1771 * when attempting to sample incomplete textures.
1773 for (i
= 0; i
< 16; i
++) {
1774 for (j
= 0; j
< 16; j
++) {
1775 pixels
[i
][j
][0] = 0;
1776 pixels
[i
][j
][1] = 0;
1777 pixels
[i
][j
][2] = 0;
1778 pixels
[i
][j
][3] = 255;
1782 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1784 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1786 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1787 16, 16, 1, 0, /* w, h, d, border */
1790 st_TexImage(st
->ctx
, 2, target
,
1791 0, GL_RGBA
, /* level, intformat */
1792 16, 16, 1, 0, /* w, h, d, border */
1793 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1794 &st
->ctx
->DefaultPacking
,
1798 texObj
->MinFilter
= GL_NEAREST
;
1799 texObj
->MagFilter
= GL_NEAREST
;
1800 texObj
->_Complete
= GL_TRUE
;
1802 st
->default_texture
= texObj
;
1804 return st
->default_texture
;
1809 st_init_texture_functions(struct dd_function_table
*functions
)
1811 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1812 functions
->TexImage1D
= st_TexImage1D
;
1813 functions
->TexImage2D
= st_TexImage2D
;
1814 functions
->TexImage3D
= st_TexImage3D
;
1815 functions
->TexSubImage1D
= st_TexSubImage1D
;
1816 functions
->TexSubImage2D
= st_TexSubImage2D
;
1817 functions
->TexSubImage3D
= st_TexSubImage3D
;
1818 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1819 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1820 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1821 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1822 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1823 functions
->GenerateMipmap
= st_generate_mipmap
;
1825 functions
->GetTexImage
= st_GetTexImage
;
1827 /* compressed texture functions */
1828 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1829 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1830 functions
->CompressedTextureSize
= _mesa_compressed_texture_size
;
1832 functions
->NewTextureObject
= st_NewTextureObject
;
1833 functions
->NewTextureImage
= st_NewTextureImage
;
1834 functions
->DeleteTexture
= st_DeleteTextureObject
;
1835 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1836 functions
->UpdateTexturePalette
= 0;
1838 functions
->TextureMemCpy
= do_memcpy
;
1840 /* XXX Temporary until we can query pipe's texture sizes */
1841 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;