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 /* choose the texture format */
559 texImage
->TexFormat
= st_ChooseTextureFormat(ctx
, internalFormat
,
562 _mesa_set_fetch_functions(texImage
, dims
);
564 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
565 /* must be a compressed format */
569 texelBytes
= _mesa_get_format_bytes(texImage
->TexFormat
);
571 /* Minimum pitch of 32 bytes */
572 if (postConvWidth
* texelBytes
< 32) {
573 postConvWidth
= 32 / texelBytes
;
574 texImage
->RowStride
= postConvWidth
;
577 /* we'll set RowStride elsewhere when the texture is a "mapped" state */
578 /*assert(texImage->RowStride == postConvWidth);*/
581 /* Release the reference to a potentially orphaned buffer.
582 * Release any old malloced memory.
585 pipe_texture_reference(&stImage
->pt
, NULL
);
586 assert(!texImage
->Data
);
588 else if (texImage
->Data
) {
589 _mesa_align_free(texImage
->Data
);
592 if (width
== 0 || height
== 0 || depth
== 0) {
593 /* stop after freeing old image */
597 /* If this is the only mipmap level in the texture, could call
598 * bmBufferData with NULL data to free the old block and avoid
599 * waiting on any outstanding fences.
602 if (stObj
->teximage_realloc
||
603 level
> (GLint
) stObj
->pt
->last_level
||
604 (stObj
->pt
->last_level
== level
&&
605 stObj
->pt
->target
!= PIPE_TEXTURE_CUBE
&&
606 !st_texture_match_image(stObj
->pt
, &stImage
->base
,
607 stImage
->face
, stImage
->level
))) {
609 pipe_texture_reference(&stObj
->pt
, NULL
);
611 stObj
->teximage_realloc
= FALSE
;
616 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
618 /* Probably out of memory.
619 * Try flushing any pending rendering, then retry.
622 guess_and_alloc_texture(ctx
->st
, stObj
, stImage
);
624 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
630 assert(!stImage
->pt
);
633 st_texture_match_image(stObj
->pt
, &stImage
->base
,
634 stImage
->face
, stImage
->level
)) {
636 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
641 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
643 /* st_CopyTexImage calls this function with pixels == NULL, with
644 * the expectation that the texture will be set up but nothing
645 * more will be done. This is where those calls return:
647 if (compressed_src
) {
648 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
650 "glCompressedTexImage");
653 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
655 pixels
, unpack
, "glTexImage");
658 /* Note: we can't check for pixels==NULL until after we've allocated
659 * memory for the texture.
662 /* See if we can do texture compression with a blit/render.
664 if (!compressed_src
&&
666 is_compressed_mesa_format(texImage
->TexFormat
) &&
667 screen
->is_format_supported(screen
,
670 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 if (format
== GL_DEPTH_COMPONENT
&&
682 pf_is_depth_and_stencil(stImage
->pt
->format
))
683 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
685 transfer_usage
= PIPE_TRANSFER_WRITE
;
687 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
688 transfer_usage
, 0, 0,
690 stImage
->base
.Height
);
691 if(stImage
->transfer
)
692 dstRowStride
= stImage
->transfer
->stride
;
695 /* Allocate regular memory and store the image there temporarily. */
696 if (_mesa_is_format_compressed(texImage
->TexFormat
)) {
697 sizeInBytes
= _mesa_format_image_size(texImage
->TexFormat
,
701 dstRowStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
705 dstRowStride
= postConvWidth
* texelBytes
;
706 sizeInBytes
= depth
* dstRowStride
* postConvHeight
;
709 texImage
->Data
= _mesa_align_malloc(sizeInBytes
, 16);
712 if (!texImage
->Data
) {
713 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
720 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
721 width
, height
, depth
, width
* texelBytes
, dstRowStride
);
723 /* Copy data. Would like to know when it's ok for us to eg. use
724 * the blitter to copy. Or, use the hardware to do the format
725 * conversion and copy:
727 if (compressed_src
) {
728 memcpy(texImage
->Data
, pixels
, imageSize
);
731 const GLuint srcImageStride
=
732 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
734 const GLubyte
*src
= (const GLubyte
*) pixels
;
736 for (i
= 0; i
< depth
; i
++) {
737 if (!_mesa_texstore(ctx
, dims
,
738 texImage
->_BaseFormat
,
741 0, 0, 0, /* dstX/Y/Zoffset */
743 texImage
->ImageOffsets
,
745 format
, type
, src
, unpack
)) {
746 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
749 if (stImage
->pt
&& i
+ 1 < depth
) {
750 /* unmap this slice */
751 st_texture_image_unmap(ctx
->st
, stImage
);
752 /* map next slice of 3D texture */
753 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
754 transfer_usage
, 0, 0,
756 stImage
->base
.Height
);
757 src
+= srcImageStride
;
763 _mesa_unmap_teximage_pbo(ctx
, unpack
);
765 if (stImage
->pt
&& texImage
->Data
) {
766 st_texture_image_unmap(ctx
->st
, stImage
);
767 texImage
->Data
= NULL
;
773 st_TexImage3D(GLcontext
* ctx
,
774 GLenum target
, GLint level
,
775 GLint internalFormat
,
776 GLint width
, GLint height
, GLint depth
,
778 GLenum format
, GLenum type
, const void *pixels
,
779 const struct gl_pixelstore_attrib
*unpack
,
780 struct gl_texture_object
*texObj
,
781 struct gl_texture_image
*texImage
)
783 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
784 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
790 st_TexImage2D(GLcontext
* ctx
,
791 GLenum target
, GLint level
,
792 GLint internalFormat
,
793 GLint width
, GLint height
, GLint border
,
794 GLenum format
, GLenum type
, const void *pixels
,
795 const struct gl_pixelstore_attrib
*unpack
,
796 struct gl_texture_object
*texObj
,
797 struct gl_texture_image
*texImage
)
799 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
800 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
805 st_TexImage1D(GLcontext
* ctx
,
806 GLenum target
, GLint level
,
807 GLint internalFormat
,
808 GLint width
, GLint border
,
809 GLenum format
, GLenum type
, const void *pixels
,
810 const struct gl_pixelstore_attrib
*unpack
,
811 struct gl_texture_object
*texObj
,
812 struct gl_texture_image
*texImage
)
814 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
815 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
820 st_CompressedTexImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
821 GLint internalFormat
,
822 GLint width
, GLint height
, GLint border
,
823 GLsizei imageSize
, const GLvoid
*data
,
824 struct gl_texture_object
*texObj
,
825 struct gl_texture_image
*texImage
)
827 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
828 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
834 * glGetTexImage() helper: decompress a compressed texture by rendering
835 * a textured quad. Store the results in the user's buffer.
838 decompress_with_blit(GLcontext
* ctx
, GLenum target
, GLint level
,
839 GLenum format
, GLenum type
, GLvoid
*pixels
,
840 struct gl_texture_object
*texObj
,
841 struct gl_texture_image
*texImage
)
843 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
844 struct st_texture_image
*stImage
= st_texture_image(texImage
);
845 const GLuint width
= texImage
->Width
;
846 const GLuint height
= texImage
->Height
;
847 struct pipe_surface
*dst_surface
;
848 struct pipe_texture
*dst_texture
;
849 struct pipe_transfer
*tex_xfer
;
851 /* create temp / dest surface */
852 if (!util_create_rgba_surface(screen
, width
, height
,
853 &dst_texture
, &dst_surface
)) {
854 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
855 "in decompress_with_blit()");
859 /* blit/render/decompress */
860 util_blit_pixels_tex(ctx
->st
->blit
,
861 stImage
->pt
, /* pipe_texture (src) */
862 0, 0, /* src x0, y0 */
863 width
, height
, /* src x1, y1 */
864 dst_surface
, /* pipe_surface (dst) */
865 0, 0, /* dst x0, y0 */
866 width
, height
, /* dst x1, y1 */
868 PIPE_TEX_MIPFILTER_NEAREST
);
870 /* map the dst_surface so we can read from it */
871 tex_xfer
= st_cond_flush_get_tex_transfer(st_context(ctx
),
872 dst_texture
, 0, 0, 0,
874 0, 0, width
, height
);
876 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
878 /* copy/pack data into user buffer */
879 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
881 const uint bytesPerRow
= width
* pf_get_size(stImage
->pt
->format
);
882 ubyte
*map
= screen
->transfer_map(screen
, tex_xfer
);
884 for (row
= 0; row
< height
; row
++) {
885 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
886 height
, format
, type
, row
, 0);
887 memcpy(dest
, map
, bytesPerRow
);
888 map
+= tex_xfer
->stride
;
890 screen
->transfer_unmap(screen
, tex_xfer
);
893 /* format translation via floats */
895 for (row
= 0; row
< height
; row
++) {
896 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
897 GLfloat rgba
[4 * MAX_WIDTH
];
898 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
899 height
, format
, type
, row
, 0);
901 /* get float[4] rgba row from surface */
902 pipe_get_tile_rgba(tex_xfer
, 0, row
, width
, 1, rgba
);
904 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
905 type
, dest
, &ctx
->Pack
, transferOps
);
909 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
911 /* destroy the temp / dest surface */
912 util_destroy_rgba_surface(dst_texture
, dst_surface
);
918 * Need to map texture image into memory before copying image data,
922 st_get_tex_image(GLcontext
* ctx
, GLenum target
, GLint level
,
923 GLenum format
, GLenum type
, GLvoid
* pixels
,
924 struct gl_texture_object
*texObj
,
925 struct gl_texture_image
*texImage
, GLboolean compressed_dst
)
927 struct st_texture_image
*stImage
= st_texture_image(texImage
);
928 const GLuint dstImageStride
=
929 _mesa_image_image_stride(&ctx
->Pack
, texImage
->Width
, texImage
->Height
,
935 pf_is_compressed(stImage
->pt
->format
) &&
937 /* Need to decompress the texture.
938 * We'll do this by rendering a textured quad.
939 * Note that we only expect RGBA formats (no Z/depth formats).
941 decompress_with_blit(ctx
, target
, level
, format
, type
, pixels
,
948 /* Image is stored in hardware format in a buffer managed by the
949 * kernel. Need to explicitly map and unmap it.
951 unsigned face
= _mesa_tex_target_to_face(target
);
953 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
956 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
957 PIPE_TRANSFER_READ
, 0, 0,
959 stImage
->base
.Height
);
960 texImage
->RowStride
= stImage
->transfer
->stride
/ stImage
->pt
->block
.size
;
963 /* Otherwise, the image should actually be stored in
964 * texImage->Data. This is pretty confusing for
965 * everybody, I'd much prefer to separate the two functions of
966 * texImage->Data - storage for texture images in main memory
967 * and access (ie mappings) of images. In other words, we'd
968 * create a new texImage->Map field and leave Data simply for
971 assert(texImage
->Data
);
974 depth
= texImage
->Depth
;
977 dest
= (GLubyte
*) pixels
;
979 for (i
= 0; i
< depth
; i
++) {
980 if (compressed_dst
) {
981 _mesa_get_compressed_teximage(ctx
, target
, level
, dest
,
985 _mesa_get_teximage(ctx
, target
, level
, format
, type
, dest
,
989 if (stImage
->pt
&& i
+ 1 < depth
) {
990 /* unmap this slice */
991 st_texture_image_unmap(ctx
->st
, stImage
);
992 /* map next slice of 3D texture */
993 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, i
+ 1,
994 PIPE_TRANSFER_READ
, 0, 0,
996 stImage
->base
.Height
);
997 dest
+= dstImageStride
;
1001 texImage
->Depth
= depth
;
1005 st_texture_image_unmap(ctx
->st
, stImage
);
1006 texImage
->Data
= NULL
;
1012 st_GetTexImage(GLcontext
* ctx
, GLenum target
, GLint level
,
1013 GLenum format
, GLenum type
, GLvoid
* pixels
,
1014 struct gl_texture_object
*texObj
,
1015 struct gl_texture_image
*texImage
)
1017 st_get_tex_image(ctx
, target
, level
, format
, type
, pixels
, texObj
, texImage
,
1023 st_GetCompressedTexImage(GLcontext
*ctx
, GLenum target
, GLint level
,
1025 struct gl_texture_object
*texObj
,
1026 struct gl_texture_image
*texImage
)
1028 st_get_tex_image(ctx
, target
, level
, 0, 0, pixels
, texObj
, texImage
,
1035 st_TexSubimage(GLcontext
*ctx
, GLint dims
, GLenum target
, GLint level
,
1036 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1037 GLint width
, GLint height
, GLint depth
,
1038 GLenum format
, GLenum type
, const void *pixels
,
1039 const struct gl_pixelstore_attrib
*packing
,
1040 struct gl_texture_object
*texObj
,
1041 struct gl_texture_image
*texImage
)
1043 struct pipe_screen
*screen
= ctx
->st
->pipe
->screen
;
1044 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1045 GLuint dstRowStride
;
1046 const GLuint srcImageStride
=
1047 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1050 /* init to silence warning only: */
1051 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1053 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1054 _mesa_lookup_enum_by_nr(target
),
1055 level
, xoffset
, yoffset
, width
, height
);
1058 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1059 type
, pixels
, packing
, "glTexSubImage2D");
1063 /* See if we can do texture compression with a blit/render.
1065 if (!ctx
->Mesa_DXTn
&&
1066 is_compressed_mesa_format(texImage
->TexFormat
) &&
1067 screen
->is_format_supported(screen
,
1068 stImage
->pt
->format
,
1069 stImage
->pt
->target
,
1070 PIPE_TEXTURE_USAGE_RENDER_TARGET
, 0)) {
1071 if (compress_with_blit(ctx
, target
, level
,
1072 xoffset
, yoffset
, zoffset
,
1073 width
, height
, depth
,
1074 format
, type
, pixels
, packing
, texImage
)) {
1079 /* Map buffer if necessary. Need to lock to prevent other contexts
1080 * from uploading the buffer under us.
1083 unsigned face
= _mesa_tex_target_to_face(target
);
1085 if (format
== GL_DEPTH_COMPONENT
&&
1086 pf_is_depth_and_stencil(stImage
->pt
->format
))
1087 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1089 transfer_usage
= PIPE_TRANSFER_WRITE
;
1091 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1093 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, zoffset
,
1099 if (!texImage
->Data
) {
1100 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1104 src
= (const GLubyte
*) pixels
;
1105 dstRowStride
= stImage
->transfer
->stride
;
1107 for (i
= 0; i
< depth
; i
++) {
1108 if (!_mesa_texstore(ctx
, dims
, texImage
->_BaseFormat
,
1109 texImage
->TexFormat
,
1113 texImage
->ImageOffsets
,
1115 format
, type
, src
, packing
)) {
1116 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1119 if (stImage
->pt
&& i
+ 1 < depth
) {
1120 /* unmap this slice */
1121 st_texture_image_unmap(ctx
->st
, stImage
);
1122 /* map next slice of 3D texture */
1123 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
,
1128 src
+= srcImageStride
;
1133 _mesa_unmap_teximage_pbo(ctx
, packing
);
1136 st_texture_image_unmap(ctx
->st
, stImage
);
1137 texImage
->Data
= NULL
;
1144 st_TexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1145 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1146 GLsizei width
, GLsizei height
, GLsizei depth
,
1147 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1148 const struct gl_pixelstore_attrib
*packing
,
1149 struct gl_texture_object
*texObj
,
1150 struct gl_texture_image
*texImage
)
1152 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1153 width
, height
, depth
, format
, type
,
1154 pixels
, packing
, texObj
, texImage
);
1159 st_TexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1160 GLint xoffset
, GLint yoffset
,
1161 GLsizei width
, GLsizei height
,
1162 GLenum format
, GLenum type
, 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
, 2, target
, level
, xoffset
, yoffset
, 0,
1168 width
, height
, 1, format
, type
,
1169 pixels
, packing
, texObj
, texImage
);
1174 st_TexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1175 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1176 const GLvoid
* pixels
,
1177 const struct gl_pixelstore_attrib
*packing
,
1178 struct gl_texture_object
*texObj
,
1179 struct gl_texture_image
*texImage
)
1181 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1182 format
, type
, pixels
, packing
, texObj
, texImage
);
1187 st_CompressedTexSubImage1D(GLcontext
*ctx
, GLenum target
, GLint level
,
1188 GLint xoffset
, GLsizei width
,
1190 GLsizei imageSize
, const GLvoid
*data
,
1191 struct gl_texture_object
*texObj
,
1192 struct gl_texture_image
*texImage
)
1199 st_CompressedTexSubImage2D(GLcontext
*ctx
, GLenum target
, GLint level
,
1200 GLint xoffset
, GLint yoffset
,
1201 GLsizei width
, GLint height
,
1203 GLsizei imageSize
, const GLvoid
*data
,
1204 struct gl_texture_object
*texObj
,
1205 struct gl_texture_image
*texImage
)
1207 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1208 struct pipe_format_block block
;
1214 unsigned face
= _mesa_tex_target_to_face(target
);
1216 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, face
, level
,
1217 PIPE_TRANSFER_WRITE
);
1218 texImage
->Data
= st_texture_image_map(ctx
->st
, stImage
, 0,
1219 PIPE_TRANSFER_WRITE
,
1223 block
= stImage
->pt
->block
;
1224 srcBlockStride
= pf_get_stride(&block
, width
);
1225 dstBlockStride
= stImage
->transfer
->stride
;
1227 assert(stImage
->pt
);
1228 /* TODO find good values for block and strides */
1229 /* TODO also adjust texImage->data for yoffset/xoffset */
1233 if (!texImage
->Data
) {
1234 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1238 assert(xoffset
% block
.width
== 0);
1239 assert(yoffset
% block
.height
== 0);
1240 assert(width
% block
.width
== 0);
1241 assert(height
% block
.height
== 0);
1243 for (y
= 0; y
< height
; y
+= block
.height
) {
1244 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1245 const char *src
= (const char*)data
+ srcBlockStride
* pf_get_nblocksy(&block
, y
);
1246 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* pf_get_nblocksy(&block
, y
);
1247 memcpy(dst
, src
, pf_get_stride(&block
, width
));
1251 st_texture_image_unmap(ctx
->st
, stImage
);
1252 texImage
->Data
= NULL
;
1258 st_CompressedTexSubImage3D(GLcontext
*ctx
, GLenum target
, GLint level
,
1259 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1260 GLsizei width
, GLint height
, GLint depth
,
1262 GLsizei imageSize
, const GLvoid
*data
,
1263 struct gl_texture_object
*texObj
,
1264 struct gl_texture_image
*texImage
)
1272 * Do a CopyTexSubImage operation using a read transfer from the source,
1273 * a write transfer to the destination and get_tile()/put_tile() to access
1274 * the pixels/texels.
1276 * Note: srcY=0=TOP of renderbuffer
1279 fallback_copy_texsubimage(GLcontext
*ctx
, GLenum target
, GLint level
,
1280 struct st_renderbuffer
*strb
,
1281 struct st_texture_image
*stImage
,
1283 GLint destX
, GLint destY
, GLint destZ
,
1284 GLint srcX
, GLint srcY
,
1285 GLsizei width
, GLsizei height
)
1287 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1288 struct pipe_screen
*screen
= pipe
->screen
;
1289 struct pipe_transfer
*src_trans
;
1291 enum pipe_transfer_usage transfer_usage
;
1293 assert(width
<= MAX_WIDTH
);
1295 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1296 srcY
= strb
->Base
.Height
- srcY
- height
;
1299 src_trans
= st_cond_flush_get_tex_transfer( st_context(ctx
),
1306 if (baseFormat
== GL_DEPTH_COMPONENT
&&
1307 pf_is_depth_and_stencil(stImage
->pt
->format
))
1308 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1310 transfer_usage
= PIPE_TRANSFER_WRITE
;
1312 st_teximage_flush_before_map(ctx
->st
, stImage
->pt
, 0, 0,
1315 texDest
= st_texture_image_map(ctx
->st
, stImage
, 0, transfer_usage
,
1316 destX
, destY
, width
, height
);
1318 if (baseFormat
== GL_DEPTH_COMPONENT
||
1319 baseFormat
== GL_DEPTH24_STENCIL8
) {
1320 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1321 ctx
->Pixel
.DepthBias
!= 0.0F
);
1324 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1325 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1334 /* To avoid a large temp memory allocation, do copy row by row */
1335 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1336 uint data
[MAX_WIDTH
];
1337 pipe_get_tile_z(src_trans
, 0, srcY
, width
, 1, data
);
1339 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1341 pipe_put_tile_z(stImage
->transfer
, 0, row
, width
, 1, data
);
1347 (GLfloat
*) _mesa_malloc(width
* height
* 4 * sizeof(GLfloat
));
1349 if (tempSrc
&& texDest
) {
1350 const GLint dims
= 2;
1351 const GLint dstRowStride
= stImage
->transfer
->stride
;
1352 struct gl_texture_image
*texImage
= &stImage
->base
;
1353 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1355 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1356 unpack
.Invert
= GL_TRUE
;
1359 /* get float/RGBA image from framebuffer */
1360 /* XXX this usually involves a lot of int/float conversion.
1361 * try to avoid that someday.
1363 pipe_get_tile_rgba(src_trans
, 0, 0, width
, height
, tempSrc
);
1365 /* Store into texture memory.
1366 * Note that this does some special things such as pixel transfer
1367 * ops and format conversion. In particular, if the dest tex format
1368 * is actually RGBA but the user created the texture as GL_RGB we
1369 * need to fill-in/override the alpha channel with 1.0.
1371 _mesa_texstore(ctx
, dims
,
1372 texImage
->_BaseFormat
,
1373 texImage
->TexFormat
,
1377 texImage
->ImageOffsets
,
1379 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1383 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1387 _mesa_free(tempSrc
);
1390 st_texture_image_unmap(ctx
->st
, stImage
);
1391 screen
->tex_transfer_destroy(src_trans
);
1396 compatible_src_dst_formats(const struct gl_renderbuffer
*src
,
1397 const struct gl_texture_image
*dst
)
1399 const GLenum srcFormat
= _mesa_get_format_base_format(src
->Format
);
1400 const GLenum dstLogicalFormat
= _mesa_get_format_base_format(dst
->TexFormat
);
1402 if (srcFormat
== dstLogicalFormat
) {
1403 /* This is the same as matching_base_formats, which should
1404 * always pass, as it did previously.
1406 return TGSI_WRITEMASK_XYZW
;
1408 else if (srcFormat
== GL_RGBA
&&
1409 dstLogicalFormat
== GL_RGB
) {
1410 /* Add a single special case to cope with RGBA->RGB transfers,
1411 * setting A to 1.0 to cope with situations where the RGB
1412 * destination is actually stored as RGBA.
1414 return TGSI_WRITEMASK_XYZ
; /* A ==> 1.0 */
1426 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1427 * Note that the region to copy has already been clipped so we know we
1428 * won't read from outside the source renderbuffer's bounds.
1430 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1433 st_copy_texsubimage(GLcontext
*ctx
,
1434 GLenum target
, GLint level
,
1435 GLint destX
, GLint destY
, GLint destZ
,
1436 GLint srcX
, GLint srcY
,
1437 GLsizei width
, GLsizei height
)
1439 struct gl_texture_unit
*texUnit
=
1440 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1441 struct gl_texture_object
*texObj
=
1442 _mesa_select_tex_object(ctx
, texUnit
, target
);
1443 struct gl_texture_image
*texImage
=
1444 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1445 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1446 const GLenum texBaseFormat
= texImage
->InternalFormat
;
1447 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1448 struct st_renderbuffer
*strb
;
1449 struct pipe_context
*pipe
= ctx
->st
->pipe
;
1450 struct pipe_screen
*screen
= pipe
->screen
;
1451 enum pipe_format dest_format
, src_format
;
1452 GLboolean use_fallback
= GL_TRUE
;
1453 GLboolean matching_base_formats
;
1454 GLuint format_writemask
;
1455 struct pipe_surface
*dest_surface
= NULL
;
1456 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1458 /* any rendering in progress must flushed before we grab the fb image */
1459 st_flush(ctx
->st
, PIPE_FLUSH_RENDER_CACHE
, NULL
);
1461 /* make sure finalize_textures has been called?
1463 if (0) st_validate_state(ctx
->st
);
1465 /* determine if copying depth or color data */
1466 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1467 texBaseFormat
== GL_DEPTH24_STENCIL8
) {
1468 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1470 else if (texBaseFormat
== GL_DEPTH_STENCIL_EXT
) {
1471 strb
= st_renderbuffer(fb
->_StencilBuffer
);
1474 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1475 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1478 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1479 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1507 if (width
< 0 || height
< 0)
1512 assert(strb
->surface
);
1513 assert(stImage
->pt
);
1515 src_format
= strb
->surface
->format
;
1516 dest_format
= stImage
->pt
->format
;
1519 * Determine if the src framebuffer and dest texture have the same
1520 * base format. We need this to detect a case such as the framebuffer
1521 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1522 * texture format stores RGBA we need to set A=1 (overriding the
1523 * framebuffer's alpha values). We can't do that with the blit or
1524 * textured-quad paths.
1526 matching_base_formats
=
1527 (_mesa_get_format_base_format(strb
->Base
.Format
) ==
1528 _mesa_get_format_base_format(texImage
->TexFormat
));
1529 format_writemask
= compatible_src_dst_formats(&strb
->Base
, texImage
);
1531 if (ctx
->_ImageTransferState
== 0x0) {
1533 if (matching_base_formats
&&
1534 src_format
== dest_format
&&
1537 /* use surface_copy() / blit */
1539 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1540 stImage
->face
, stImage
->level
,
1542 PIPE_BUFFER_USAGE_GPU_WRITE
);
1544 /* for surface_copy(), y=0=top, always */
1545 pipe
->surface_copy(pipe
,
1554 use_fallback
= GL_FALSE
;
1556 else if (format_writemask
&&
1557 screen
->is_format_supported(screen
, src_format
,
1559 PIPE_TEXTURE_USAGE_SAMPLER
,
1561 screen
->is_format_supported(screen
, dest_format
,
1563 PIPE_TEXTURE_USAGE_RENDER_TARGET
,
1565 /* draw textured quad to do the copy */
1568 dest_surface
= screen
->get_tex_surface(screen
, stImage
->pt
,
1569 stImage
->face
, stImage
->level
,
1571 PIPE_BUFFER_USAGE_GPU_WRITE
);
1574 srcY1
= strb
->Base
.Height
- srcY
- height
;
1575 srcY0
= srcY1
+ height
;
1579 srcY1
= srcY0
+ height
;
1581 util_blit_pixels_writemask(ctx
->st
->blit
,
1584 srcX
+ width
, srcY1
,
1587 destX
+ width
, destY
+ height
,
1588 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1590 use_fallback
= GL_FALSE
;
1594 pipe_surface_reference(&dest_surface
, NULL
);
1598 /* software fallback */
1599 fallback_copy_texsubimage(ctx
, target
, level
,
1600 strb
, stImage
, texBaseFormat
,
1601 destX
, destY
, destZ
,
1602 srcX
, srcY
, width
, height
);
1609 st_CopyTexImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1610 GLenum internalFormat
,
1611 GLint x
, GLint y
, GLsizei width
, GLint border
)
1613 struct gl_texture_unit
*texUnit
=
1614 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1615 struct gl_texture_object
*texObj
=
1616 _mesa_select_tex_object(ctx
, texUnit
, target
);
1617 struct gl_texture_image
*texImage
=
1618 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1620 /* Setup or redefine the texture object, texture and texture
1621 * image. Don't populate yet.
1623 ctx
->Driver
.TexImage1D(ctx
, target
, level
, internalFormat
,
1625 GL_RGBA
, CHAN_TYPE
, NULL
,
1626 &ctx
->DefaultPacking
, texObj
, texImage
);
1628 st_copy_texsubimage(ctx
, target
, level
,
1629 0, 0, 0, /* destX,Y,Z */
1630 x
, y
, width
, 1); /* src X, Y, size */
1635 st_CopyTexImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1636 GLenum internalFormat
,
1637 GLint x
, GLint y
, GLsizei width
, GLsizei height
,
1640 struct gl_texture_unit
*texUnit
=
1641 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1642 struct gl_texture_object
*texObj
=
1643 _mesa_select_tex_object(ctx
, texUnit
, target
);
1644 struct gl_texture_image
*texImage
=
1645 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1647 /* Setup or redefine the texture object, texture and texture
1648 * image. Don't populate yet.
1650 ctx
->Driver
.TexImage2D(ctx
, target
, level
, internalFormat
,
1651 width
, height
, border
,
1652 GL_RGBA
, CHAN_TYPE
, NULL
,
1653 &ctx
->DefaultPacking
, texObj
, texImage
);
1655 st_copy_texsubimage(ctx
, target
, level
,
1656 0, 0, 0, /* destX,Y,Z */
1657 x
, y
, width
, height
); /* src X, Y, size */
1662 st_CopyTexSubImage1D(GLcontext
* ctx
, GLenum target
, GLint level
,
1663 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1665 const GLint yoffset
= 0, zoffset
= 0;
1666 const GLsizei height
= 1;
1667 st_copy_texsubimage(ctx
, target
, level
,
1668 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1669 x
, y
, width
, height
); /* src X, Y, size */
1674 st_CopyTexSubImage2D(GLcontext
* ctx
, GLenum target
, GLint level
,
1675 GLint xoffset
, GLint yoffset
,
1676 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1678 const GLint zoffset
= 0;
1679 st_copy_texsubimage(ctx
, target
, level
,
1680 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1681 x
, y
, width
, height
); /* src X, Y, size */
1686 st_CopyTexSubImage3D(GLcontext
* ctx
, GLenum target
, GLint level
,
1687 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1688 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1690 st_copy_texsubimage(ctx
, target
, level
,
1691 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1692 x
, y
, width
, height
); /* src X, Y, size */
1697 * Compute which mipmap levels that really need to be sent to the hardware.
1698 * This depends on the base image size, GL_TEXTURE_MIN_LOD,
1699 * GL_TEXTURE_MAX_LOD, GL_TEXTURE_BASE_LEVEL, and GL_TEXTURE_MAX_LEVEL.
1702 calculate_first_last_level(struct st_texture_object
*stObj
)
1704 struct gl_texture_object
*tObj
= &stObj
->base
;
1706 /* These must be signed values. MinLod and MaxLod can be negative numbers,
1707 * and having firstLevel and lastLevel as signed prevents the need for
1708 * extra sign checks.
1713 /* Yes, this looks overly complicated, but it's all needed.
1715 switch (tObj
->Target
) {
1719 case GL_TEXTURE_CUBE_MAP
:
1720 if (tObj
->MinFilter
== GL_NEAREST
|| tObj
->MinFilter
== GL_LINEAR
) {
1721 /* GL_NEAREST and GL_LINEAR only care about GL_TEXTURE_BASE_LEVEL.
1723 firstLevel
= lastLevel
= tObj
->BaseLevel
;
1727 lastLevel
= MIN2(tObj
->MaxLevel
,
1728 (int) tObj
->Image
[0][tObj
->BaseLevel
]->WidthLog2
);
1731 case GL_TEXTURE_RECTANGLE_NV
:
1732 case GL_TEXTURE_4D_SGIS
:
1733 firstLevel
= lastLevel
= 0;
1739 stObj
->lastLevel
= lastLevel
;
1744 copy_image_data_to_texture(struct st_context
*st
,
1745 struct st_texture_object
*stObj
,
1747 struct st_texture_image
*stImage
)
1750 /* Copy potentially with the blitter:
1752 st_texture_image_copy(st
->pipe
,
1753 stObj
->pt
, dstLevel
, /* dest texture, level */
1754 stImage
->pt
, /* src texture */
1758 pipe_texture_reference(&stImage
->pt
, NULL
);
1760 else if (stImage
->base
.Data
) {
1761 assert(stImage
->base
.Data
!= NULL
);
1763 /* More straightforward upload.
1766 st_teximage_flush_before_map(st
, stObj
->pt
, stImage
->face
, dstLevel
,
1767 PIPE_TRANSFER_WRITE
);
1770 st_texture_image_data(st
,
1775 stImage
->base
.RowStride
*
1776 stObj
->pt
->block
.size
,
1777 stImage
->base
.RowStride
*
1778 stImage
->base
.Height
*
1779 stObj
->pt
->block
.size
);
1780 _mesa_align_free(stImage
->base
.Data
);
1781 stImage
->base
.Data
= NULL
;
1784 pipe_texture_reference(&stImage
->pt
, stObj
->pt
);
1789 * Called during state validation. When this function is finished,
1790 * the texture object should be ready for rendering.
1791 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1794 st_finalize_texture(GLcontext
*ctx
,
1795 struct pipe_context
*pipe
,
1796 struct gl_texture_object
*tObj
,
1797 GLboolean
*needFlush
)
1799 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1800 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1802 struct st_texture_image
*firstImage
;
1804 *needFlush
= GL_FALSE
;
1806 /* We know/require this is true by now:
1808 assert(stObj
->base
._Complete
);
1810 /* What levels must the texture include at a minimum?
1812 calculate_first_last_level(stObj
);
1813 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1815 /* If both firstImage and stObj point to a texture which can contain
1816 * all active images, favour firstImage. Note that because of the
1817 * completeness requirement, we know that the image dimensions
1820 if (firstImage
->pt
&&
1821 firstImage
->pt
!= stObj
->pt
&&
1822 firstImage
->pt
->last_level
>= stObj
->lastLevel
) {
1823 pipe_texture_reference(&stObj
->pt
, firstImage
->pt
);
1826 /* FIXME: determine format block instead of cpp */
1827 if (_mesa_is_format_compressed(firstImage
->base
.TexFormat
)) {
1828 cpp
= compressed_num_bytes(firstImage
->base
.TexFormat
);
1831 cpp
= _mesa_get_format_bytes(firstImage
->base
.TexFormat
);
1834 /* If we already have a gallium texture, check that it matches the texture
1835 * object's format, target, size, num_levels, etc.
1838 const enum pipe_format fmt
=
1839 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1840 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1841 stObj
->pt
->format
!= fmt
||
1842 stObj
->pt
->last_level
< stObj
->lastLevel
||
1843 stObj
->pt
->width
[0] != firstImage
->base
.Width2
||
1844 stObj
->pt
->height
[0] != firstImage
->base
.Height2
||
1845 stObj
->pt
->depth
[0] != firstImage
->base
.Depth2
||
1846 /* Nominal bytes per pixel: */
1847 stObj
->pt
->block
.size
/ stObj
->pt
->block
.width
!= cpp
)
1849 pipe_texture_reference(&stObj
->pt
, NULL
);
1850 ctx
->st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1854 /* May need to create a new gallium texture:
1857 const enum pipe_format fmt
=
1858 st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1859 GLuint usage
= default_usage(fmt
);
1861 stObj
->pt
= st_texture_create(ctx
->st
,
1862 gl_target_to_pipe(stObj
->base
.Target
),
1865 firstImage
->base
.Width2
,
1866 firstImage
->base
.Height2
,
1867 firstImage
->base
.Depth2
,
1871 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1876 /* Pull in any images not in the object's texture:
1878 for (face
= 0; face
< nr_faces
; face
++) {
1880 for (level
= 0; level
<= stObj
->lastLevel
; level
++) {
1881 struct st_texture_image
*stImage
=
1882 st_texture_image(stObj
->base
.Image
[face
][stObj
->base
.BaseLevel
+ level
]);
1884 /* Need to import images in main memory or held in other textures.
1886 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1887 copy_image_data_to_texture(ctx
->st
, stObj
, level
, stImage
);
1888 *needFlush
= GL_TRUE
;
1898 * Returns pointer to a default/dummy texture.
1899 * This is typically used when the current shader has tex/sample instructions
1900 * but the user has not provided a (any) texture(s).
1902 struct gl_texture_object
*
1903 st_get_default_texture(struct st_context
*st
)
1905 if (!st
->default_texture
) {
1906 static const GLenum target
= GL_TEXTURE_2D
;
1907 GLubyte pixels
[16][16][4];
1908 struct gl_texture_object
*texObj
;
1909 struct gl_texture_image
*texImg
;
1912 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1913 * when attempting to sample incomplete textures.
1915 for (i
= 0; i
< 16; i
++) {
1916 for (j
= 0; j
< 16; j
++) {
1917 pixels
[i
][j
][0] = 0;
1918 pixels
[i
][j
][1] = 0;
1919 pixels
[i
][j
][2] = 0;
1920 pixels
[i
][j
][3] = 255;
1924 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1926 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1928 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1929 16, 16, 1, 0, /* w, h, d, border */
1932 st_TexImage(st
->ctx
, 2, target
,
1933 0, GL_RGBA
, /* level, intformat */
1934 16, 16, 1, 0, /* w, h, d, border */
1935 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1936 &st
->ctx
->DefaultPacking
,
1940 texObj
->MinFilter
= GL_NEAREST
;
1941 texObj
->MagFilter
= GL_NEAREST
;
1942 texObj
->_Complete
= GL_TRUE
;
1944 st
->default_texture
= texObj
;
1946 return st
->default_texture
;
1951 st_init_texture_functions(struct dd_function_table
*functions
)
1953 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1954 functions
->TexImage1D
= st_TexImage1D
;
1955 functions
->TexImage2D
= st_TexImage2D
;
1956 functions
->TexImage3D
= st_TexImage3D
;
1957 functions
->TexSubImage1D
= st_TexSubImage1D
;
1958 functions
->TexSubImage2D
= st_TexSubImage2D
;
1959 functions
->TexSubImage3D
= st_TexSubImage3D
;
1960 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1961 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1962 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1963 functions
->CopyTexImage1D
= st_CopyTexImage1D
;
1964 functions
->CopyTexImage2D
= st_CopyTexImage2D
;
1965 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1966 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1967 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1968 functions
->GenerateMipmap
= st_generate_mipmap
;
1970 functions
->GetTexImage
= st_GetTexImage
;
1972 /* compressed texture functions */
1973 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1974 functions
->GetCompressedTexImage
= st_GetCompressedTexImage
;
1976 functions
->NewTextureObject
= st_NewTextureObject
;
1977 functions
->NewTextureImage
= st_NewTextureImage
;
1978 functions
->DeleteTexture
= st_DeleteTextureObject
;
1979 functions
->FreeTexImageData
= st_FreeTextureImageData
;
1980 functions
->UpdateTexturePalette
= 0;
1982 functions
->TextureMemCpy
= do_memcpy
;
1984 /* XXX Temporary until we can query pipe's texture sizes */
1985 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;