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/formats.h"
35 #include "main/image.h"
36 #include "main/imports.h"
37 #include "main/macros.h"
38 #include "main/mipmap.h"
39 #include "main/pixel.h"
40 #include "main/texcompress.h"
41 #include "main/texfetch.h"
42 #include "main/texformat.h"
43 #include "main/texgetimage.h"
44 #include "main/teximage.h"
45 #include "main/texobj.h"
46 #include "main/texstore.h"
48 #include "state_tracker/st_context.h"
49 #include "state_tracker/st_cb_fbo.h"
50 #include "state_tracker/st_cb_texture.h"
51 #include "state_tracker/st_format.h"
52 #include "state_tracker/st_public.h"
53 #include "state_tracker/st_texture.h"
54 #include "state_tracker/st_gen_mipmap.h"
55 #include "state_tracker/st_inlines.h"
56 #include "state_tracker/st_atom.h"
58 #include "pipe/p_context.h"
59 #include "pipe/p_defines.h"
60 #include "pipe/p_inlines.h"
61 #include "pipe/p_shader_tokens.h"
62 #include "util/u_tile.h"
63 #include "util/u_blit.h"
64 #include "util/u_surface.h"
65 #include "util/u_math.h"
68 #define DBG if (0) printf
71 static enum pipe_texture_target
72 gl_target_to_pipe(GLenum target
)
76 return PIPE_TEXTURE_1D
;
79 case GL_TEXTURE_RECTANGLE_NV
:
80 return PIPE_TEXTURE_2D
;
83 return PIPE_TEXTURE_3D
;
85 case GL_TEXTURE_CUBE_MAP_ARB
:
86 return PIPE_TEXTURE_CUBE
;
96 * Return nominal bytes per texel for a compressed format, 0 for non-compressed
100 compressed_num_bytes(gl_format format
)
103 #if FEATURE_texture_fxt1
104 case MESA_FORMAT_RGB_FXT1
:
105 case MESA_FORMAT_RGBA_FXT1
:
107 #if FEATURE_texture_s3tc
108 case MESA_FORMAT_RGB_DXT1
:
109 case MESA_FORMAT_RGBA_DXT1
:
111 case MESA_FORMAT_RGBA_DXT3
:
112 case MESA_FORMAT_RGBA_DXT5
:
122 is_compressed_mesa_format(gl_format format
)
125 case MESA_FORMAT_RGB_DXT1
:
126 case MESA_FORMAT_RGBA_DXT1
:
127 case MESA_FORMAT_RGBA_DXT3
:
128 case MESA_FORMAT_RGBA_DXT5
:
129 case MESA_FORMAT_SRGB_DXT1
:
130 case MESA_FORMAT_SRGBA_DXT1
:
131 case MESA_FORMAT_SRGBA_DXT3
:
132 case MESA_FORMAT_SRGBA_DXT5
:
140 /** called via ctx->Driver.NewTextureImage() */
141 static struct gl_texture_image
*
142 st_NewTextureImage(GLcontext
* ctx
)
144 DBG("%s\n", __FUNCTION__
);
146 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
150 /** called via ctx->Driver.NewTextureObject() */
151 static struct gl_texture_object
*
152 st_NewTextureObject(GLcontext
* ctx
, GLuint name
, GLenum target
)
154 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
156 DBG("%s\n", __FUNCTION__
);
157 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
162 /** called via ctx->Driver.DeleteTextureImage() */
164 st_DeleteTextureObject(GLcontext
*ctx
,
165 struct gl_texture_object
*texObj
)
167 struct st_texture_object
*stObj
= st_texture_object(texObj
);
169 pipe_texture_reference(&stObj
->pt
, NULL
);
171 _mesa_delete_texture_object(ctx
, texObj
);
175 /** called via ctx->Driver.FreeTexImageData() */
177 st_FreeTextureImageData(GLcontext
* ctx
, struct gl_texture_image
*texImage
)
179 struct st_texture_image
*stImage
= st_texture_image(texImage
);
181 DBG("%s\n", __FUNCTION__
);
184 pipe_texture_reference(&stImage
->pt
, NULL
);
187 if (texImage
->Data
) {
188 _mesa_align_free(texImage
->Data
);
189 texImage
->Data
= NULL
;
195 * From linux kernel i386 header files, copes with odd sizes better
196 * than COPY_DWORDS would:
197 * XXX Put this in src/mesa/main/imports.h ???
199 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
201 __memcpy(void *to
, const void *from
, size_t n
)
204 __asm__
__volatile__("rep ; movsl\n\t"
208 "1:\ttestb $1,%b4\n\t"
210 "movsb\n" "2:":"=&c"(d0
), "=&D"(d1
), "=&S"(d2
)
211 :"0"(n
/ 4), "q"(n
), "1"((long) to
), "2"((long) from
)
216 #define __memcpy(a,b,c) memcpy(a,b,c)
221 * The system memcpy (at least on ubuntu 5.10) has problems copying
222 * to agp (writecombined) memory from a source which isn't 64-byte
223 * aligned - there is a 4x performance falloff.
225 * The x86 __memcpy is immune to this but is slightly slower
226 * (10%-ish) than the system memcpy.
228 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
229 * isn't much faster than x86_memcpy for agp copies.
231 * TODO: switch dynamically.
234 do_memcpy(void *dest
, const void *src
, size_t n
)
236 if ((((unsigned long) src
) & 63) || (((unsigned long) dest
) & 63)) {
237 return __memcpy(dest
, src
, n
);
240 return memcpy(dest
, src
, n
);
245 * Return default texture usage bitmask for the given texture format.
248 default_usage(enum pipe_format fmt
)
250 GLuint usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
251 if (pf_is_depth_stencil(fmt
))
252 usage
|= PIPE_TEXTURE_USAGE_DEPTH_STENCIL
;
254 usage
|= PIPE_TEXTURE_USAGE_RENDER_TARGET
;
260 * Allocate a pipe_texture object for the given st_texture_object using
261 * the given st_texture_image to guess the mipmap size/levels.
264 * Otherwise, store it in memory if (Border != 0) or (any dimension ==
267 * Otherwise, if max_level >= level >= min_level, create texture with
268 * space for images from min_level down to max_level.
270 * Otherwise, create texture with space for images from (level 0)..(1x1).
271 * Consider pruning this texture at a validation if the saving is worth it.
274 guess_and_alloc_texture(struct st_context
*st
,
275 struct st_texture_object
*stObj
,
276 const struct st_texture_image
*stImage
)
280 GLuint width
= stImage
->base
.Width2
; /* size w/out border */
281 GLuint height
= stImage
->base
.Height2
;
282 GLuint depth
= stImage
->base
.Depth2
;
284 enum pipe_format fmt
;
286 DBG("%s\n", __FUNCTION__
);
291 (GLint
) stImage
->level
> stObj
->base
.BaseLevel
&&
292 (stImage
->base
.Width
== 1 ||
293 (stObj
->base
.Target
!= GL_TEXTURE_1D
&&
294 stImage
->base
.Height
== 1) ||
295 (stObj
->base
.Target
== GL_TEXTURE_3D
&&
296 stImage
->base
.Depth
== 1)))
299 /* If this image disrespects BaseLevel, allocate from level zero.
300 * Usually BaseLevel == 0, so it's unlikely to happen.
302 if ((GLint
) stImage
->level
< stObj
->base
.BaseLevel
)
305 firstLevel
= stObj
->base
.BaseLevel
;
308 /* Figure out image dimensions at start level.
310 for (i
= stImage
->level
; i
> firstLevel
; i
--) {
319 if (width
== 0 || height
== 0 || depth
== 0) {
320 /* no texture needed */
324 /* Guess a reasonable value for lastLevel. This is probably going
325 * to be wrong fairly often and might mean that we have to look at
326 * resizable buffers, or require that buffers implement lazy
327 * pagetable arrangements.
329 if ((stObj
->base
.MinFilter
== GL_NEAREST
||
330 stObj
->base
.MinFilter
== GL_LINEAR
||
331 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
332 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
333 stImage
->level
== firstLevel
) {
334 lastLevel
= firstLevel
;
337 GLuint l2width
= util_logbase2(width
);
338 GLuint l2height
= util_logbase2(height
);
339 GLuint l2depth
= util_logbase2(depth
);
340 lastLevel
= firstLevel
+ MAX2(MAX2(l2width
, l2height
), l2depth
);
343 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
);
345 usage
= default_usage(fmt
);
347 stObj
->pt
= st_texture_create(st
,
348 gl_target_to_pipe(stObj
->base
.Target
),
356 DBG("%s - success\n", __FUNCTION__
);
361 * Adjust pixel unpack params and image dimensions to strip off the
363 * Gallium doesn't support texture borders. They've seldem been used
364 * and seldom been implemented correctly anyway.
365 * \param unpackNew returns the new pixel unpack parameters
368 strip_texture_border(GLint border
,
369 GLint
*width
, GLint
*height
, GLint
*depth
,
370 const struct gl_pixelstore_attrib
*unpack
,
371 struct gl_pixelstore_attrib
*unpackNew
)
373 assert(border
> 0); /* sanity check */
375 *unpackNew
= *unpack
;
377 if (unpackNew
->RowLength
== 0)
378 unpackNew
->RowLength
= *width
;
380 if (depth
&& unpackNew
->ImageHeight
== 0)
381 unpackNew
->ImageHeight
= *height
;
383 unpackNew
->SkipPixels
+= border
;
385 unpackNew
->SkipRows
+= border
;
387 unpackNew
->SkipImages
+= border
;
390 *width
= *width
- 2 * border
;
391 if (height
&& *height
>= 3)
392 *height
= *height
- 2 * border
;
393 if (depth
&& *depth
>= 3)
394 *depth
= *depth
- 2 * border
;
399 * Try to do texture compression via rendering. If the Gallium driver
400 * can render into a compressed surface this will allow us to do texture
402 * \return GL_TRUE for success, GL_FALSE for failure
405 compress_with_blit(GLcontext
* ctx
,
406 GLenum target
, GLint level
,
407 GLint xoffset
, GLint yoffset
, GLint zoffset
,
408 GLint width
, GLint height
, GLint depth
,
409 GLenum format
, GLenum type
, const void *pixels
,
410 const struct gl_pixelstore_attrib
*unpack
,
411 struct gl_texture_image
*texImage
)
413 const GLuint dstImageOffsets
[1] = {0};
414 struct st_texture_image
*stImage
= st_texture_image(texImage
);
415 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
416 gl_format mesa_format
;
417 struct pipe_texture templ
;
418 struct pipe_texture
*src_tex
;
419 struct pipe_surface
*dst_surface
;
420 struct pipe_transfer
*tex_xfer
;
424 /* XXX: Can this happen? Should we assert? */
428 /* get destination surface (in the compressed texture) */
429 dst_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
430 stImage
->face
, stImage
->level
, 0,
431 PIPE_BUFFER_USAGE_GPU_WRITE
);
433 /* can't render into this format (or other problem) */
437 /* Choose format for the temporary RGBA texture image.
439 mesa_format
= st_ChooseTextureFormat(ctx
, GL_RGBA
, format
, type
);
444 /* Create the temporary source texture
446 memset(&templ
, 0, sizeof(templ
));
447 templ
.target
= PIPE_TEXTURE_2D
;
448 templ
.format
= st_mesa_format_to_pipe_format(mesa_format
);
449 pf_get_block(templ
.format
, &templ
.block
);
450 templ
.width
[0] = width
;
451 templ
.height
[0] = height
;
453 templ
.last_level
= 0;
454 templ
.tex_usage
= PIPE_TEXTURE_USAGE_SAMPLER
;
455 src_tex
= screen
->texture_create(screen
, &templ
);
460 /* Put user's tex data into the temporary texture
462 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
), src_tex
,
463 0, 0, 0, /* face, level are zero */
465 0, 0, width
, height
); /* x, y, w, h */
466 map
= screen
->transfer_map(screen
, tex_xfer
);
468 _mesa_texstore(ctx
, 2, GL_RGBA
, mesa_format
,
470 0, 0, 0, /* dest x/y/z offset */
471 tex_xfer
->stride
, /* dest row stride (bytes) */
472 dstImageOffsets
, /* image offsets (for 3D only) */
473 width
, height
, 1, /* size */
474 format
, type
, /* source format/type */
475 pixels
, /* source data */
476 unpack
); /* source data packing */
478 screen
->transfer_unmap(screen
, tex_xfer
);
479 screen
->tex_transfer_destroy(tex_xfer
);
481 /* copy / compress image */
482 util_blit_pixels_tex(ctx
->st
->blit
,
483 src_tex
, /* pipe_texture (src) */
484 0, 0, /* src x0, y0 */
485 width
, height
, /* src x1, y1 */
486 dst_surface
, /* pipe_surface (dst) */
487 xoffset
, yoffset
, /* dst x0, y0 */
488 xoffset
+ width
, /* dst x1 */
489 yoffset
+ height
, /* dst y1 */
491 PIPE_TEX_MIPFILTER_NEAREST
);
493 pipe_surface_reference(&dst_surface
, NULL
);
494 pipe_texture_reference(&src_tex
, NULL
);
501 * Do glTexImage1/2/3D().
504 st_TexImage(GLcontext
* ctx
,
506 GLenum target
, GLint level
,
507 GLint internalFormat
,
508 GLint width
, GLint height
, GLint depth
,
510 GLenum format
, GLenum type
, const void *pixels
,
511 const struct gl_pixelstore_attrib
*unpack
,
512 struct gl_texture_object
*texObj
,
513 struct gl_texture_image
*texImage
,
514 GLsizei imageSize
, GLboolean compressed_src
)
516 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
517 struct st_texture_object
*stObj
= st_texture_object(texObj
);
518 struct st_texture_image
*stImage
= st_texture_image(texImage
);
519 GLint postConvWidth
, postConvHeight
;
520 GLint texelBytes
, sizeInBytes
;
521 GLuint dstRowStride
= 0;
522 struct gl_pixelstore_attrib unpackNB
;
523 enum pipe_transfer_usage transfer_usage
= 0;
525 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
526 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
528 /* switch to "normal" */
529 if (stObj
->surface_based
) {
530 _mesa_clear_texture_object(ctx
, texObj
);
531 stObj
->surface_based
= GL_FALSE
;
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 _mesa_set_fetch_functions(texImage
, dims
);
560 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
561 /* must be a compressed format */
565 texelBytes
= _mesa_get_format_bytes(texImage
->TexFormat
);
567 /* Minimum pitch of 32 bytes */
568 if (postConvWidth
* texelBytes
< 32) {
569 postConvWidth
= 32 / texelBytes
;
570 texImage
->RowStride
= postConvWidth
;
573 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
574 /*assert(texImage->RowStride == postConvWidth);*/
577 /* Release the reference to a potentially orphaned buffer.
578 * Release any old malloced memory.
581 pipe_texture_reference(&stImage
->pt
, NULL
);
582 assert(!texImage
->Data
);
584 else if (texImage
->Data
) {
585 _mesa_align_free(texImage
->Data
);
588 if (width
== 0 || height
== 0 || depth
== 0) {
589 /* stop after freeing old image */
593 /* If this is the only mipmap level in the texture, could call
594 * bmBufferData with NULL data to free the old block and avoid
595 * waiting on any outstanding fences.
598 if (stObj
->teximage_realloc
||
599 level
> (GLint
) stObj
->pt
->last_level
||
600 (stObj
->pt
->last_level
== level
&&
601 stObj
->pt
->target
!= PIPE_TEXTURE_CUBE
&&
602 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
603 stImage
->face
, stImage
->level
))) {
605 pipe_texture_reference(&stObj
->pt
, NULL
);
607 stObj
->teximage_realloc
= FALSE
;
612 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
614 /* Probably out of memory.
615 * Try flushing any pending rendering, then retry.
618 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
620 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
626 assert(!stImage
->pt
);
629 st_texture_match_image(stObj
->pt
, &stImage
->base
,
630 stImage
->face
, stImage
->level
)) {
632 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
637 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
639 /* st_CopyTexImage calls this function with pixels == NULL, with
640 * the expectation that the texture will be set up but nothing
641 * more will be done. This is where those calls return:
643 if (compressed_src
) {
644 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
646 "glCompressedTexImage");
649 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
651 pixels
, unpack
, "glTexImage");
654 /* Note: we can't check for pixels==NULL until after we've allocated
655 * memory for the texture.
658 /* See if we can do texture compression with a blit/render.
660 if (!compressed_src
&&
662 is_compressed_mesa_format(texImage
->TexFormat
) &&
663 screen
->is_format_supported(screen
,
666 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
670 if (compress_with_blit(ctx
, target
, level
, 0, 0, 0, width
, height
, depth
,
671 format
, type
, pixels
, unpack
, texImage
)) {
677 if (format
== GL_DEPTH_COMPONENT
&&
678 pf_is_depth_and_stencil(stImage
->pt
->format
))
679 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
681 transfer_usage
= PIPE_TRANSFER_WRITE
;
683 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
684 transfer_usage
, 0, 0,
686 stImage
->base
.Height
);
687 if(stImage
->transfer
)
688 dstRowStride
= stImage
->transfer
->stride
;
691 /* Allocate regular memory and store the image there temporarily. */
692 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
693 sizeInBytes
= _mesa_format_image_size(texImage
->TexFormat
,
697 dstRowStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
701 dstRowStride
= postConvWidth
* texelBytes
;
702 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
705 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
708 if (!texImage
->Data
) {
709 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
716 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
717 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
719 /* Copy data. Would like to know when it's ok for us to eg. use
720 * the blitter to copy. Or, use the hardware to do the format
721 * conversion and copy:
723 if (compressed_src
) {
724 memcpy(texImage
->Data
, pixels
, imageSize
);
727 const GLuint srcImageStride
=
728 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
730 const GLubyte
*src
= (const GLubyte
*) pixels
;
732 for (i
= 0; i
< depth
; i
++) {
733 if (!_mesa_texstore(ctx
, dims
,
734 texImage
->_BaseFormat
,
737 0, 0, 0, /* dstX/Y/Zoffset */
739 texImage
->ImageOffsets
,
741 format
, type
, src
, unpack
)) {
742 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
745 if (stImage
->pt
&& i
+ 1 < depth
) {
746 /* unmap this slice */
747 st_texture_image_unmap(ctx
->st
, stImage
);
748 /* map next slice of 3D texture */
749 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
750 transfer_usage
, 0, 0,
752 stImage
->base
.Height
);
753 src
+= srcImageStride
;
759 _mesa_unmap_teximage_pbo(ctx
, unpack
);
761 if (stImage
->pt
&& texImage
->Data
) {
762 st_texture_image_unmap(ctx
->st
, stImage
);
763 texImage
->Data
= NULL
;
769 st_TexImage3D(GLcontext
* ctx
,
770 GLenum target
, GLint level
,
771 GLint internalFormat
,
772 GLint width
, GLint height
, GLint depth
,
774 GLenum format
, GLenum type
, const void *pixels
,
775 const struct gl_pixelstore_attrib
*unpack
,
776 struct gl_texture_object
*texObj
,
777 struct gl_texture_image
*texImage
)
779 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
780 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
786 st_TexImage2D(GLcontext
* ctx
,
787 GLenum target
, GLint level
,
788 GLint internalFormat
,
789 GLint width
, GLint height
, GLint border
,
790 GLenum format
, GLenum type
, const void *pixels
,
791 const struct gl_pixelstore_attrib
*unpack
,
792 struct gl_texture_object
*texObj
,
793 struct gl_texture_image
*texImage
)
795 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
796 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
801 st_TexImage1D(GLcontext
* ctx
,
802 GLenum target
, GLint level
,
803 GLint internalFormat
,
804 GLint width
, GLint border
,
805 GLenum format
, GLenum type
, const void *pixels
,
806 const struct gl_pixelstore_attrib
*unpack
,
807 struct gl_texture_object
*texObj
,
808 struct gl_texture_image
*texImage
)
810 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
811 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
816 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
817 GLint internalFormat
,
818 GLint width
, GLint height
, GLint border
,
819 GLsizei imageSize
, const GLvoid
*data
,
820 struct gl_texture_object
*texObj
,
821 struct gl_texture_image
*texImage
)
823 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
824 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
830 * glGetTexImage() helper: decompress a compressed texture by rendering
831 * a textured quad. Store the results in the user's buffer.
834 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
835 GLenum format
, GLenum type
, GLvoid
*pixels
,
836 struct gl_texture_object
*texObj
,
837 struct gl_texture_image
*texImage
)
839 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
840 struct st_texture_image
*stImage
= st_texture_image(texImage
);
841 const GLuint width
= texImage
->Width
;
842 const GLuint height
= texImage
->Height
;
843 struct pipe_surface
*dst_surface
;
844 struct pipe_texture
*dst_texture
;
845 struct pipe_transfer
*tex_xfer
;
847 /* create temp / dest surface */
848 if (!util_create_rgba_surface(screen
, width
, height
,
849 &dst_texture
, &dst_surface
)) {
850 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
851 "in decompress_with_blit()");
855 /* blit/render/decompress */
856 util_blit_pixels_tex(ctx
->st
->blit
,
857 stImage
->pt
, /* pipe_texture (src) */
858 0, 0, /* src x0, y0 */
859 width
, height
, /* src x1, y1 */
860 dst_surface
, /* pipe_surface (dst) */
861 0, 0, /* dst x0, y0 */
862 width
, height
, /* dst x1, y1 */
864 PIPE_TEX_MIPFILTER_NEAREST
);
866 /* map the dst_surface so we can read from it */
867 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
868 dst_texture
, 0, 0, 0,
870 0, 0, width
, height
);
872 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
874 /* copy/pack data into user buffer */
875 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
877 const uint bytesPerRow
= width
* pf_get_size(stImage
->pt
->format
);
878 ubyte
*map
= screen
->transfer_map(screen
, tex_xfer
);
880 for (row
= 0; row
< height
; row
++) {
881 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
882 height
, format
, type
, row
, 0);
883 memcpy(dest
, map
, bytesPerRow
);
884 map
+= tex_xfer
->stride
;
886 screen
->transfer_unmap(screen
, tex_xfer
);
889 /* format translation via floats */
891 for (row
= 0; row
< height
; row
++) {
892 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
893 GLfloat rgba
[4 * MAX_WIDTH
];
894 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
895 height
, format
, type
, row
, 0);
897 /* get float[4] rgba row from surface */
898 pipe_get_tile_rgba(tex_xfer
, 0, row
, width
, 1, rgba
);
900 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
901 type
, dest
, &ctx
->Pack
, transferOps
);
905 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
907 /* destroy the temp / dest surface */
908 util_destroy_rgba_surface(dst_texture
, dst_surface
);
914 * Need to map texture image into memory before copying image data,
918 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
919 GLenum format
, GLenum type
, GLvoid
* pixels
,
920 struct gl_texture_object
*texObj
,
921 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
923 struct st_texture_image
*stImage
= st_texture_image(texImage
);
924 const GLuint dstImageStride
=
925 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
931 pf_is_compressed(stImage
->pt
->format
) &&
933 /* Need to decompress the texture.
934 * We'll do this by rendering a textured quad.
935 * Note that we only expect RGBA formats (no Z/depth formats).
937 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
944 /* Image is stored in hardware format in a buffer managed by the
945 * kernel. Need to explicitly map and unmap it.
947 unsigned face
= _mesa_tex_target_to_face(target
);
949 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
952 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
953 PIPE_TRANSFER_READ
, 0, 0,
955 stImage
->base
.Height
);
956 texImage
->RowStride
= stImage
->transfer
->stride
/ stImage
->pt
->block
.size
;
959 /* Otherwise, the image should actually be stored in
960 * texImage->Data. This is pretty confusing for
961 * everybody, I'd much prefer to separate the two functions of
962 * texImage->Data - storage for texture images in main memory
963 * and access (ie mappings) of images. In other words, we'd
964 * create a new texImage->Map field and leave Data simply for
967 assert(texImage
->Data
);
970 depth
= texImage
->Depth
;
973 dest
= (GLubyte
*) pixels
;
975 for (i
= 0; i
< depth
; i
++) {
976 if (compressed_dst
) {
977 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
981 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
985 if (stImage
->pt
&& i
+ 1 < depth
) {
986 /* unmap this slice */
987 st_texture_image_unmap(ctx
->st
, stImage
);
988 /* map next slice of 3D texture */
989 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
990 PIPE_TRANSFER_READ
, 0, 0,
992 stImage
->base
.Height
);
993 dest
+= dstImageStride
;
997 texImage
->Depth
= depth
;
1001 st_texture_image_unmap(ctx
->st
, stImage
);
1002 texImage
->Data
= NULL
;
1008 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
1009 GLenum format
, GLenum type
, GLvoid
* pixels
,
1010 struct gl_texture_object
*texObj
,
1011 struct gl_texture_image
*texImage
)
1013 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
1019 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
1021 struct gl_texture_object
*texObj
,
1022 struct gl_texture_image
*texImage
)
1024 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1031 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1032 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1033 GLint width
, GLint height
, GLint depth
,
1034 GLenum format
, GLenum type
, const void *pixels
,
1035 const struct gl_pixelstore_attrib
*packing
,
1036 struct gl_texture_object
*texObj
,
1037 struct gl_texture_image
*texImage
)
1039 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1040 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1041 GLuint dstRowStride
;
1042 const GLuint srcImageStride
=
1043 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1046 /* init to silence warning only: */
1047 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1049 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1050 _mesa_lookup_enum_by_nr(target
),
1051 level
, xoffset
, yoffset
, width
, height
);
1054 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1055 type
, pixels
, packing
, "glTexSubImage2D");
1059 /* See if we can do texture compression with a blit/render.
1061 if (!ctx
->Mesa_DXTn
&&
1062 is_compressed_mesa_format(texImage
->TexFormat
) &&
1063 screen
->is_format_supported(screen
,
1064 stImage
->pt
->format
,
1065 stImage
->pt
->target
,
1066 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1067 if (compress_with_blit(ctx
, target
, level
,
1068 xoffset
, yoffset
, zoffset
,
1069 width
, height
, depth
,
1070 format
, type
, pixels
, packing
, texImage
)) {
1075 /* Map buffer if necessary. Need to lock to prevent other contexts
1076 * from uploading the buffer under us.
1079 unsigned face
= _mesa_tex_target_to_face(target
);
1081 if (format
== GL_DEPTH_COMPONENT
&&
1082 pf_is_depth_and_stencil(stImage
->pt
->format
))
1083 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1085 transfer_usage
= PIPE_TRANSFER_WRITE
;
1087 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1089 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1095 if (!texImage
->Data
) {
1096 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1100 src
= (const GLubyte
*) pixels
;
1101 dstRowStride
= stImage
->transfer
->stride
;
1103 for (i
= 0; i
< depth
; i
++) {
1104 if (!_mesa_texstore(ctx
, dims
, texImage
->_BaseFormat
,
1105 texImage
->TexFormat
,
1109 texImage
->ImageOffsets
,
1111 format
, type
, src
, packing
)) {
1112 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1115 if (stImage
->pt
&& i
+ 1 < depth
) {
1116 /* unmap this slice */
1117 st_texture_image_unmap(ctx
->st
, stImage
);
1118 /* map next slice of 3D texture */
1119 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1124 src
+= srcImageStride
;
1129 _mesa_unmap_teximage_pbo(ctx
, packing
);
1132 st_texture_image_unmap(ctx
->st
, stImage
);
1133 texImage
->Data
= NULL
;
1140 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1141 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1142 GLsizei width
, GLsizei height
, GLsizei depth
,
1143 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1144 const struct gl_pixelstore_attrib
*packing
,
1145 struct gl_texture_object
*texObj
,
1146 struct gl_texture_image
*texImage
)
1148 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1149 width
, height
, depth
, format
, type
,
1150 pixels
, packing
, texObj
, texImage
);
1155 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1156 GLint xoffset
, GLint yoffset
,
1157 GLsizei width
, GLsizei height
,
1158 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1159 const struct gl_pixelstore_attrib
*packing
,
1160 struct gl_texture_object
*texObj
,
1161 struct gl_texture_image
*texImage
)
1163 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1164 width
, height
, 1, format
, type
,
1165 pixels
, packing
, texObj
, texImage
);
1170 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1171 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1172 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
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1178 format
, type
, pixels
, packing
, texObj
, texImage
);
1183 st_CompressedTexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1184 GLint xoffset
, GLsizei width
,
1186 GLsizei imageSize
, const GLvoid
*data
,
1187 struct gl_texture_object
*texObj
,
1188 struct gl_texture_image
*texImage
)
1195 st_CompressedTexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1196 GLint xoffset
, GLint yoffset
,
1197 GLsizei width
, GLint height
,
1199 GLsizei imageSize
, const GLvoid
*data
,
1200 struct gl_texture_object
*texObj
,
1201 struct gl_texture_image
*texImage
)
1203 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1204 struct pipe_format_block block
;
1210 unsigned face
= _mesa_tex_target_to_face(target
);
1212 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1213 PIPE_TRANSFER_WRITE
);
1214 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
1215 PIPE_TRANSFER_WRITE
,
1219 block
= stImage
->pt
->block
;
1220 srcBlockStride
= pf_get_stride(&block
, width
);
1221 dstBlockStride
= stImage
->transfer
->stride
;
1223 assert(stImage
->pt
);
1224 /* TODO find good values for block and strides */
1225 /* TODO also adjust texImage->data for yoffset/xoffset */
1229 if (!texImage
->Data
) {
1230 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1234 assert(xoffset
% block
.width
== 0);
1235 assert(yoffset
% block
.height
== 0);
1236 assert(width
% block
.width
== 0);
1237 assert(height
% block
.height
== 0);
1239 for (y
= 0; y
< height
; y
+= block
.height
) {
1240 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1241 const char *src
= (const char*)data
+ srcBlockStride
* pf_get_nblocksy(&block
, y
);
1242 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* pf_get_nblocksy(&block
, y
);
1243 memcpy(dst
, src
, pf_get_stride(&block
, width
));
1247 st_texture_image_unmap(ctx
->st
, stImage
);
1248 texImage
->Data
= NULL
;
1254 st_CompressedTexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1255 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1256 GLsizei width
, GLint height
, GLint depth
,
1258 GLsizei imageSize
, const GLvoid
*data
,
1259 struct gl_texture_object
*texObj
,
1260 struct gl_texture_image
*texImage
)
1268 * Do a CopyTexSubImage operation using a read transfer from the source,
1269 * a write transfer to the destination and get_tile()/put_tile() to access
1270 * the pixels/texels.
1272 * Note: srcY=0=TOP of renderbuffer
1275 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1276 struct st_renderbuffer
*strb
,
1277 struct st_texture_image
*stImage
,
1279 GLint destX
, GLint destY
, GLint destZ
,
1280 GLint srcX
, GLint srcY
,
1281 GLsizei width
, GLsizei height
)
1283 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1284 struct pipe_screen
*screen
= pipe
->screen
;
1285 struct pipe_transfer
*src_trans
;
1287 enum pipe_transfer_usage transfer_usage
;
1289 assert(width
<= MAX_WIDTH
);
1291 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1292 srcY
= strb
->Base
.Height
- srcY
- height
;
1295 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1302 if (baseFormat
== GL_DEPTH_COMPONENT
&&
1303 pf_is_depth_and_stencil(stImage
->pt
->format
))
1304 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1306 transfer_usage
= PIPE_TRANSFER_WRITE
;
1308 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1311 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, transfer_usage
,
1312 destX
, destY
, width
, height
);
1314 if (baseFormat
== GL_DEPTH_COMPONENT
||
1315 baseFormat
== GL_DEPTH24_STENCIL8
) {
1316 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1317 ctx
->Pixel
.DepthBias
!= 0.0F
);
1320 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1321 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1330 /* To avoid a large temp memory allocation, do copy row by row */
1331 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1332 uint data
[MAX_WIDTH
];
1333 pipe_get_tile_z(src_trans
, 0, srcY
, width
, 1, data
);
1335 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1337 pipe_put_tile_z(stImage
->transfer
, 0, row
, width
, 1, data
);
1343 (GLfloat
*) _mesa_malloc(width
* height
* 4 * sizeof(GLfloat
));
1345 if (tempSrc
&& texDest
) {
1346 const GLint dims
= 2;
1347 const GLint dstRowStride
= stImage
->transfer
->stride
;
1348 struct gl_texture_image
*texImage
= &stImage
->base
;
1349 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1351 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1352 unpack
.Invert
= GL_TRUE
;
1355 /* get float/RGBA image from framebuffer */
1356 /* XXX this usually involves a lot of int/float conversion.
1357 * try to avoid that someday.
1359 pipe_get_tile_rgba(src_trans
, 0, 0, width
, height
, tempSrc
);
1361 /* Store into texture memory.
1362 * Note that this does some special things such as pixel transfer
1363 * ops and format conversion. In particular, if the dest tex format
1364 * is actually RGBA but the user created the texture as GL_RGB we
1365 * need to fill-in/override the alpha channel with 1.0.
1367 _mesa_texstore(ctx
, dims
,
1368 texImage
->_BaseFormat
,
1369 texImage
->TexFormat
,
1373 texImage
->ImageOffsets
,
1375 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1379 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1383 _mesa_free(tempSrc
);
1386 st_texture_image_unmap(ctx
->st
, stImage
);
1387 screen
->tex_transfer_destroy(src_trans
);
1392 compatible_src_dst_formats(const struct gl_renderbuffer
*src
,
1393 const struct gl_texture_image
*dst
)
1395 const GLenum srcFormat
= _mesa_get_format_base_format(src
->Format
);
1396 const GLenum dstLogicalFormat
= _mesa_get_format_base_format(dst
->TexFormat
);
1398 if (srcFormat
== dstLogicalFormat
) {
1399 /* This is the same as matching_base_formats, which should
1400 * always pass, as it did previously.
1402 return TGSI_WRITEMASK_XYZW
;
1404 else if (srcFormat
== GL_RGBA
&&
1405 dstLogicalFormat
== GL_RGB
) {
1406 /* Add a single special case to cope with RGBA->RGB transfers,
1407 * setting A to 1.0 to cope with situations where the RGB
1408 * destination is actually stored as RGBA.
1410 return TGSI_WRITEMASK_XYZ
; /* A ==> 1.0 */
1422 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1423 * Note that the region to copy has already been clipped so we know we
1424 * won't read from outside the source renderbuffer's bounds.
1426 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1429 st_copy_texsubimage(GLcontext
*ctx
,
1430 GLenum target
, GLint level
,
1431 GLint destX
, GLint destY
, GLint destZ
,
1432 GLint srcX
, GLint srcY
,
1433 GLsizei width
, GLsizei height
)
1435 struct gl_texture_unit
*texUnit
=
1436 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1437 struct gl_texture_object
*texObj
=
1438 _mesa_select_tex_object(ctx
, texUnit
, target
);
1439 struct gl_texture_image
*texImage
=
1440 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1441 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1442 const GLenum texBaseFormat
= texImage
->InternalFormat
;
1443 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1444 struct st_renderbuffer
*strb
;
1445 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1446 struct pipe_screen
*screen
= pipe
->screen
;
1447 enum pipe_format dest_format
, src_format
;
1448 GLboolean use_fallback
= GL_TRUE
;
1449 GLboolean matching_base_formats
;
1450 GLuint format_writemask
;
1451 struct pipe_surface
*dest_surface
= NULL
;
1452 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1454 /* any rendering in progress must flushed before we grab the fb image */
1455 st_flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
1457 /* make sure finalize_textures has been called?
1459 if (0) st_validate_state(ctx
->st
);
1461 /* determine if copying depth or color data */
1462 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1463 texBaseFormat
== GL_DEPTH24_STENCIL8
) {
1464 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1466 else if (texBaseFormat
== GL_DEPTH_STENCIL_EXT
) {
1467 strb
= st_renderbuffer(fb
->_StencilBuffer
);
1470 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1471 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1474 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1475 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1503 if (width
< 0 || height
< 0)
1508 assert(strb
->surface
);
1509 assert(stImage
->pt
);
1511 src_format
= strb
->surface
->format
;
1512 dest_format
= stImage
->pt
->format
;
1515 * Determine if the src framebuffer and dest texture have the same
1516 * base format. We need this to detect a case such as the framebuffer
1517 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1518 * texture format stores RGBA we need to set A=1 (overriding the
1519 * framebuffer's alpha values). We can't do that with the blit or
1520 * textured-quad paths.
1522 matching_base_formats
=
1523 (_mesa_get_format_base_format(strb
->Base
.Format
) ==
1524 _mesa_get_format_base_format(texImage
->TexFormat
));
1525 format_writemask
= compatible_src_dst_formats(&strb
->Base
, texImage
);
1527 if (ctx
->_ImageTransferState
== 0x0) {
1529 if (matching_base_formats
&&
1530 src_format
== dest_format
&&
1533 /* use surface_copy() / blit */
1535 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1536 stImage
->face
, stImage
->level
,
1538 PIPE_BUFFER_USAGE_GPU_WRITE
);
1540 /* for surface_copy(), y=0=top, always */
1541 pipe
->surface_copy(pipe
,
1550 use_fallback
= GL_FALSE
;
1552 else if (format_writemask
&&
1553 screen
->is_format_supported(screen
, src_format
,
1555 PIPE_TEXTURE_USAGE_SAMPLER
,
1557 screen
->is_format_supported(screen
, dest_format
,
1559 PIPE_TEXTURE_USAGE_RENDER_TARGET
,
1561 /* draw textured quad to do the copy */
1564 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1565 stImage
->face
, stImage
->level
,
1567 PIPE_BUFFER_USAGE_GPU_WRITE
);
1570 srcY1
= strb
->Base
.Height
- srcY
- height
;
1571 srcY0
= srcY1
+ height
;
1575 srcY1
= srcY0
+ height
;
1577 util_blit_pixels_writemask(ctx
->st
->blit
,
1580 srcX
+ width
, srcY1
,
1583 destX
+ width
, destY
+ height
,
1584 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1586 use_fallback
= GL_FALSE
;
1590 pipe_surface_reference(&dest_surface
, NULL
);
1594 /* software fallback */
1595 fallback_copy_texsubimage(ctx
, target
, level
,
1596 strb
, stImage
, texBaseFormat
,
1597 destX
, destY
, destZ
,
1598 srcX
, srcY
, width
, height
);
1605 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1606 GLenum internalFormat
,
1607 GLint x
, GLint y
, GLsizei width
, GLint border
)
1609 struct gl_texture_unit
*texUnit
=
1610 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1611 struct gl_texture_object
*texObj
=
1612 _mesa_select_tex_object(ctx
, texUnit
, target
);
1613 struct gl_texture_image
*texImage
=
1614 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1616 /* Setup or redefine the texture object, texture and texture
1617 * image. Don't populate yet.
1619 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1621 GL_RGBA
, CHAN_TYPE
, NULL
,
1622 &ctx
->DefaultPacking
, texObj
, texImage
);
1624 st_copy_texsubimage(ctx
, target
, level
,
1625 0, 0, 0, /* destX,Y,Z */
1626 x
, y
, width
, 1); /* src X, Y, size */
1631 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1632 GLenum internalFormat
,
1633 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1636 struct gl_texture_unit
*texUnit
=
1637 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1638 struct gl_texture_object
*texObj
=
1639 _mesa_select_tex_object(ctx
, texUnit
, target
);
1640 struct gl_texture_image
*texImage
=
1641 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1643 /* Setup or redefine the texture object, texture and texture
1644 * image. Don't populate yet.
1646 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1647 width
, height
, border
,
1648 GL_RGBA
, CHAN_TYPE
, NULL
,
1649 &ctx
->DefaultPacking
, texObj
, texImage
);
1651 st_copy_texsubimage(ctx
, target
, level
,
1652 0, 0, 0, /* destX,Y,Z */
1653 x
, y
, width
, height
); /* src X, Y, size */
1658 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1659 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1661 const GLint yoffset
= 0, zoffset
= 0;
1662 const GLsizei height
= 1;
1663 st_copy_texsubimage(ctx
, target
, level
,
1664 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1665 x
, y
, width
, height
); /* src X, Y, size */
1670 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1671 GLint xoffset
, GLint yoffset
,
1672 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1674 const GLint zoffset
= 0;
1675 st_copy_texsubimage(ctx
, target
, level
,
1676 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1677 x
, y
, width
, height
); /* src X, Y, size */
1682 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1683 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1684 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1686 st_copy_texsubimage(ctx
, target
, level
,
1687 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1688 x
, y
, width
, height
); /* src X, Y, size */
1693 * Compute which mipmap levels that really need to be sent to the hardware.
1694 * This depends on the base image size, GL_TEXTURE_MIN_LOD,
1695 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL.
1698 calculate_first_last_level(struct st_texture_object
*stObj
)
1700 struct gl_texture_object
*tObj
= &stObj
->base
;
1702 /* These must be signed values. MinLod and MaxLod can be negative numbers,
1703 * and having firstLevel and lastLevel as signed prevents the need for
1704 * extra sign checks.
1709 /* Yes, this looks overly complicated, but it's all needed.
1711 switch (tObj
->Target
) {
1715 case GL_TEXTURE_CUBE_MAP
:
1716 if (tObj
->MinFilter
== GL_NEAREST
|| tObj
->MinFilter
== GL_LINEAR
) {
1717 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL.
1719 firstLevel
= lastLevel
= tObj
->BaseLevel
;
1723 lastLevel
= MIN2(tObj
->MaxLevel
,
1724 (int) tObj
->Image
[0][tObj
->BaseLevel
]->WidthLog2
);
1727 case GL_TEXTURE_RECTANGLE_NV
:
1728 case GL_TEXTURE_4D_SGIS
:
1729 firstLevel
= lastLevel
= 0;
1735 stObj
->lastLevel
= lastLevel
;
1740 copy_image_data_to_texture(struct st_context
*st
,
1741 struct st_texture_object
*stObj
,
1743 struct st_texture_image
*stImage
)
1746 /* Copy potentially with the blitter:
1748 st_texture_image_copy(st
->pipe
,
1749 stObj
->pt
, dstLevel
, /* dest texture, level */
1750 stImage
->pt
, /* src texture */
1754 pipe_texture_reference(&stImage
->pt
, NULL
);
1756 else if (stImage
->base
.Data
) {
1757 assert(stImage
->base
.Data
!= NULL
);
1759 /* More straightforward upload.
1762 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1763 PIPE_TRANSFER_WRITE
);
1766 st_texture_image_data(st
,
1771 stImage
->base
.RowStride
*
1772 stObj
->pt
->block
.size
,
1773 stImage
->base
.RowStride
*
1774 stImage
->base
.Height
*
1775 stObj
->pt
->block
.size
);
1776 _mesa_align_free(stImage
->base
.Data
);
1777 stImage
->base
.Data
= NULL
;
1780 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
1785 * Called during state validation. When this function is finished,
1786 * the texture object should be ready for rendering.
1787 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1790 st_finalize_texture(GLcontext
*ctx
,
1791 struct pipe_context
*pipe
,
1792 struct gl_texture_object
*tObj
,
1793 GLboolean
*needFlush
)
1795 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1796 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1798 struct st_texture_image
*firstImage
;
1800 *needFlush
= GL_FALSE
;
1802 /* We know/require this is true by now:
1804 assert(stObj
->base
._Complete
);
1806 /* What levels must the texture include at a minimum?
1808 calculate_first_last_level(stObj
);
1809 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1811 /* If both firstImage and stObj point to a texture which can contain
1812 * all active images, favour firstImage. Note that because of the
1813 * completeness requirement, we know that the image dimensions
1816 if (firstImage
->pt
&&
1817 firstImage
->pt
!= stObj
->pt
&&
1818 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1819 pipe_texture_reference(&stObj
->pt
, firstImage
->pt
);
1822 /* FIXME: determine format block instead of cpp */
1823 if (_mesa_is_format_compressed(firstImage
->base
.TexFormat
)) {
1824 cpp
= compressed_num_bytes(firstImage
->base
.TexFormat
);
1827 cpp
= _mesa_get_format_bytes(firstImage
->base
.TexFormat
);
1830 /* If we already have a gallium texture, check that it matches the texture
1831 * object's format, target, size, num_levels, etc.
1834 const enum pipe_format fmt
=
1835 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1836 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1837 stObj
->pt
->format
!= fmt
||
1838 stObj
->pt
->last_level
< stObj
->lastLevel
||
1839 stObj
->pt
->width
[0] != firstImage
->base
.Width2
||
1840 stObj
->pt
->height
[0] != firstImage
->base
.Height2
||
1841 stObj
->pt
->depth
[0] != firstImage
->base
.Depth2
||
1842 /* Nominal bytes per pixel: */
1843 stObj
->pt
->block
.size
/ stObj
->pt
->block
.width
!= cpp
)
1845 pipe_texture_reference(&stObj
->pt
, NULL
);
1846 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1850 /* May need to create a new gallium texture:
1853 const enum pipe_format fmt
=
1854 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1855 GLuint usage
= default_usage(fmt
);
1857 stObj
->pt
= st_texture_create(ctx
->st
,
1858 gl_target_to_pipe(stObj
->base
.Target
),
1861 firstImage
->base
.Width2
,
1862 firstImage
->base
.Height2
,
1863 firstImage
->base
.Depth2
,
1867 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1872 /* Pull in any images not in the object's texture:
1874 for (face
= 0; face
< nr_faces
; face
++) {
1876 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1877 struct st_texture_image
*stImage
=
1878 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1880 /* Need to import images in main memory or held in other textures.
1882 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1883 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1884 *needFlush
= GL_TRUE
;
1894 * Returns pointer to a default/dummy texture.
1895 * This is typically used when the current shader has tex/sample instructions
1896 * but the user has not provided a (any) texture(s).
1898 struct gl_texture_object
*
1899 st_get_default_texture(struct st_context
*st
)
1901 if (!st
->default_texture
) {
1902 static const GLenum target
= GL_TEXTURE_2D
;
1903 GLubyte pixels
[16][16][4];
1904 struct gl_texture_object
*texObj
;
1905 struct gl_texture_image
*texImg
;
1908 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1909 * when attempting to sample incomplete textures.
1911 for (i
= 0; i
< 16; i
++) {
1912 for (j
= 0; j
< 16; j
++) {
1913 pixels
[i
][j
][0] = 0;
1914 pixels
[i
][j
][1] = 0;
1915 pixels
[i
][j
][2] = 0;
1916 pixels
[i
][j
][3] = 255;
1920 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1922 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1924 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1925 16, 16, 1, 0, /* w, h, d, border */
1928 st_TexImage(st
->ctx
, 2, target
,
1929 0, GL_RGBA
, /* level, intformat */
1930 16, 16, 1, 0, /* w, h, d, border */
1931 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1932 &st
->ctx
->DefaultPacking
,
1936 texObj
->MinFilter
= GL_NEAREST
;
1937 texObj
->MagFilter
= GL_NEAREST
;
1938 texObj
->_Complete
= GL_TRUE
;
1940 st
->default_texture
= texObj
;
1942 return st
->default_texture
;
1947 st_init_texture_functions(struct dd_function_table
*functions
)
1949 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1950 functions
->TexImage1D
= st_TexImage1D
;
1951 functions
->TexImage2D
= st_TexImage2D
;
1952 functions
->TexImage3D
= st_TexImage3D
;
1953 functions
->TexSubImage1D
= st_TexSubImage1D
;
1954 functions
->TexSubImage2D
= st_TexSubImage2D
;
1955 functions
->TexSubImage3D
= st_TexSubImage3D
;
1956 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1957 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1958 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1959 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1960 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1961 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1962 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1963 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1964 functions
->GenerateMipmap
= st_generate_mipmap
;
1966 functions
->GetTexImage
= st_GetTexImage
;
1968 /* compressed texture functions */
1969 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1970 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1972 functions
->NewTextureObject
= st_NewTextureObject
;
1973 functions
->NewTextureImage
= st_NewTextureImage
;
1974 functions
->DeleteTexture
= st_DeleteTextureObject
;
1975 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1976 functions
->UpdateTexturePalette
= 0;
1978 functions
->TextureMemCpy
= do_memcpy
;
1980 /* XXX Temporary until we can query pipe's texture sizes */
1981 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;