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"
30 #include "main/enums.h"
31 #include "main/fbobject.h"
32 #include "main/formats.h"
33 #include "main/image.h"
34 #include "main/imports.h"
35 #include "main/macros.h"
36 #include "main/mipmap.h"
37 #include "main/pack.h"
39 #include "main/pixeltransfer.h"
40 #include "main/texcompress.h"
41 #include "main/texgetimage.h"
42 #include "main/teximage.h"
43 #include "main/texobj.h"
44 #include "main/texstore.h"
46 #include "state_tracker/st_debug.h"
47 #include "state_tracker/st_context.h"
48 #include "state_tracker/st_cb_fbo.h"
49 #include "state_tracker/st_cb_flush.h"
50 #include "state_tracker/st_cb_texture.h"
51 #include "state_tracker/st_format.h"
52 #include "state_tracker/st_texture.h"
53 #include "state_tracker/st_gen_mipmap.h"
54 #include "state_tracker/st_atom.h"
56 #include "pipe/p_context.h"
57 #include "pipe/p_defines.h"
58 #include "util/u_inlines.h"
59 #include "pipe/p_shader_tokens.h"
60 #include "util/u_tile.h"
61 #include "util/u_blit.h"
62 #include "util/u_format.h"
63 #include "util/u_surface.h"
64 #include "util/u_sampler.h"
65 #include "util/u_math.h"
66 #include "util/u_box.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
;
78 return PIPE_TEXTURE_2D
;
79 case GL_TEXTURE_RECTANGLE_NV
:
80 return PIPE_TEXTURE_RECT
;
82 return PIPE_TEXTURE_3D
;
83 case GL_TEXTURE_CUBE_MAP_ARB
:
84 return PIPE_TEXTURE_CUBE
;
85 case GL_TEXTURE_1D_ARRAY_EXT
:
86 return PIPE_TEXTURE_1D_ARRAY
;
87 case GL_TEXTURE_2D_ARRAY_EXT
:
88 return PIPE_TEXTURE_2D_ARRAY
;
89 case GL_TEXTURE_BUFFER
:
98 /** called via ctx->Driver.NewTextureImage() */
99 static struct gl_texture_image
*
100 st_NewTextureImage(struct gl_context
* ctx
)
102 DBG("%s\n", __FUNCTION__
);
104 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
108 /** called via ctx->Driver.DeleteTextureImage() */
110 st_DeleteTextureImage(struct gl_context
* ctx
, struct gl_texture_image
*img
)
112 /* nothing special (yet) for st_texture_image */
113 _mesa_delete_texture_image(ctx
, img
);
117 /** called via ctx->Driver.NewTextureObject() */
118 static struct gl_texture_object
*
119 st_NewTextureObject(struct gl_context
* ctx
, GLuint name
, GLenum target
)
121 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
123 DBG("%s\n", __FUNCTION__
);
124 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
129 /** called via ctx->Driver.DeleteTextureObject() */
131 st_DeleteTextureObject(struct gl_context
*ctx
,
132 struct gl_texture_object
*texObj
)
134 struct st_context
*st
= st_context(ctx
);
135 struct st_texture_object
*stObj
= st_texture_object(texObj
);
137 pipe_resource_reference(&stObj
->pt
, NULL
);
138 if (stObj
->sampler_view
) {
139 if (stObj
->sampler_view
->context
!= st
->pipe
) {
140 /* Take "ownership" of this texture sampler view by setting
141 * its context pointer to this context. This avoids potential
142 * crashes when the texture object is shared among contexts
143 * and the original/owner context has already been destroyed.
145 stObj
->sampler_view
->context
= st
->pipe
;
147 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
149 _mesa_delete_texture_object(ctx
, texObj
);
153 /** called via ctx->Driver.FreeTextureImageBuffer() */
155 st_FreeTextureImageBuffer(struct gl_context
* ctx
, struct gl_texture_image
*texImage
)
157 struct st_texture_image
*stImage
= st_texture_image(texImage
);
159 DBG("%s\n", __FUNCTION__
);
162 pipe_resource_reference(&stImage
->pt
, NULL
);
165 if (texImage
->Data
) {
166 _mesa_align_free(texImage
->Data
);
167 texImage
->Data
= NULL
;
172 /** called via ctx->Driver.MapTextureImage() */
174 st_MapTextureImage(struct gl_context
*ctx
,
175 struct gl_texture_image
*texImage
,
176 GLuint slice
, GLuint x
, GLuint y
, GLuint w
, GLuint h
,
178 GLubyte
**mapOut
, GLint
*rowStrideOut
)
180 struct st_context
*st
= st_context(ctx
);
181 struct st_texture_image
*stImage
= st_texture_image(texImage
);
186 if (mode
& GL_MAP_READ_BIT
)
187 pipeMode
|= PIPE_TRANSFER_READ
;
188 if (mode
& GL_MAP_WRITE_BIT
)
189 pipeMode
|= PIPE_TRANSFER_WRITE
;
191 map
= st_texture_image_map(st
, stImage
, slice
, pipeMode
, x
, y
, w
, h
);
194 *rowStrideOut
= stImage
->transfer
->stride
;
203 /** called via ctx->Driver.UnmapTextureImage() */
205 st_UnmapTextureImage(struct gl_context
*ctx
,
206 struct gl_texture_image
*texImage
,
209 struct st_context
*st
= st_context(ctx
);
210 struct st_texture_image
*stImage
= st_texture_image(texImage
);
211 st_texture_image_unmap(st
, stImage
);
216 * From linux kernel i386 header files, copes with odd sizes better
217 * than COPY_DWORDS would:
218 * XXX Put this in src/mesa/main/imports.h ???
220 #if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86)
222 __memcpy(void *to
, const void *from
, size_t n
)
225 __asm__
__volatile__("rep ; movsl\n\t"
229 "1:\ttestb $1,%b4\n\t"
231 "movsb\n" "2:":"=&c"(d0
), "=&D"(d1
), "=&S"(d2
)
232 :"0"(n
/ 4), "q"(n
), "1"((long) to
), "2"((long) from
)
237 #define __memcpy(a,b,c) memcpy(a,b,c)
242 * The system memcpy (at least on ubuntu 5.10) has problems copying
243 * to agp (writecombined) memory from a source which isn't 64-byte
244 * aligned - there is a 4x performance falloff.
246 * The x86 __memcpy is immune to this but is slightly slower
247 * (10%-ish) than the system memcpy.
249 * The sse_memcpy seems to have a slight cliff at 64/32 bytes, but
250 * isn't much faster than x86_memcpy for agp copies.
252 * TODO: switch dynamically.
255 do_memcpy(void *dest
, const void *src
, size_t n
)
257 if ((((unsigned long) src
) & 63) || (((unsigned long) dest
) & 63)) {
258 return __memcpy(dest
, src
, n
);
261 return memcpy(dest
, src
, n
);
266 * Return default texture resource binding bitmask for the given format.
269 default_bindings(struct st_context
*st
, enum pipe_format format
)
271 struct pipe_screen
*screen
= st
->pipe
->screen
;
272 const unsigned target
= PIPE_TEXTURE_2D
;
275 if (util_format_is_depth_or_stencil(format
))
276 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_DEPTH_STENCIL
;
278 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_RENDER_TARGET
;
280 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
284 format
= util_format_linear(format
);
286 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
289 return PIPE_BIND_SAMPLER_VIEW
;
294 /** Return number of image dimensions (1, 2 or 3) for a texture target. */
296 get_texture_dims(GLenum target
)
300 case GL_TEXTURE_1D_ARRAY_EXT
:
301 case GL_TEXTURE_BUFFER
:
304 case GL_TEXTURE_CUBE_MAP_ARB
:
305 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
306 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
307 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
308 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
309 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
310 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
311 case GL_TEXTURE_RECTANGLE_NV
:
312 case GL_TEXTURE_2D_ARRAY_EXT
:
317 assert(0 && "invalid texture target in get_texture_dims()");
324 * Given the size of a mipmap image, try to compute the size of the level=0
327 * Note that this isn't always accurate for odd-sized, non-POW textures.
328 * For example, if level=1 and width=40 then the level=0 width may be 80 or 81.
330 * \return GL_TRUE for success, GL_FALSE for failure
333 guess_base_level_size(GLenum target
,
334 GLuint width
, GLuint height
, GLuint depth
, GLuint level
,
335 GLuint
*width0
, GLuint
*height0
, GLuint
*depth0
)
337 const GLuint dims
= get_texture_dims(target
);
344 /* Depending on the image's size, we can't always make a guess here */
345 if ((dims
>= 1 && width
== 1) ||
346 (dims
>= 2 && height
== 1) ||
347 (dims
>= 3 && depth
== 1)) {
348 /* we can't determine the image size at level=0 */
352 /* grow the image size until we hit level = 0 */
373 * Try to allocate a pipe_resource object for the given st_texture_object.
375 * We use the given st_texture_image as a clue to determine the size of the
376 * mipmap image at level=0.
378 * \return GL_TRUE for success, GL_FALSE if out of memory.
381 guess_and_alloc_texture(struct st_context
*st
,
382 struct st_texture_object
*stObj
,
383 const struct st_texture_image
*stImage
)
385 GLuint lastLevel
, width
, height
, depth
;
387 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
388 enum pipe_format fmt
;
390 DBG("%s\n", __FUNCTION__
);
394 if (!guess_base_level_size(stObj
->base
.Target
,
395 stImage
->base
.Width2
,
396 stImage
->base
.Height2
,
397 stImage
->base
.Depth2
,
399 &width
, &height
, &depth
)) {
400 /* we can't determine the image size at level=0 */
401 stObj
->width0
= stObj
->height0
= stObj
->depth0
= 0;
402 /* this is not an out of memory error */
406 /* At this point, (width x height x depth) is the expected size of
407 * the level=0 mipmap image.
410 /* Guess a reasonable value for lastLevel. With OpenGL we have no
411 * idea how many mipmap levels will be in a texture until we start
412 * to render with it. Make an educated guess here but be prepared
413 * to re-allocating a texture buffer with space for more (or fewer)
414 * mipmap levels later.
416 if ((stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
||
417 stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
418 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
419 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
420 !stObj
->base
.GenerateMipmap
&&
421 stImage
->base
.Level
== 0) {
422 /* only alloc space for a single mipmap level */
426 /* alloc space for a full mipmap */
427 GLuint l2width
= util_logbase2(width
);
428 GLuint l2height
= util_logbase2(height
);
429 GLuint l2depth
= util_logbase2(depth
);
430 lastLevel
= MAX2(MAX2(l2width
, l2height
), l2depth
);
433 /* Save the level=0 dimensions */
434 stObj
->width0
= width
;
435 stObj
->height0
= height
;
436 stObj
->depth0
= depth
;
438 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
);
440 bindings
= default_bindings(st
, fmt
);
442 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
443 width
, height
, depth
,
444 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
446 stObj
->pt
= st_texture_create(st
,
447 gl_target_to_pipe(stObj
->base
.Target
),
456 DBG("%s returning %d\n", __FUNCTION__
, (stObj
->pt
!= NULL
));
458 return stObj
->pt
!= NULL
;
463 * Called via ctx->Driver.AllocTextureImageBuffer().
464 * If the texture object/buffer already has space for the indicated image,
465 * we're done. Otherwise, allocate memory for the new texture image.
466 * XXX This function and st_TexImage() have some duplicated code. That
467 * can be cleaned up in the future.
470 st_AllocTextureImageBuffer(struct gl_context
*ctx
,
471 struct gl_texture_image
*texImage
,
472 gl_format format
, GLsizei width
,
473 GLsizei height
, GLsizei depth
)
475 struct st_context
*st
= st_context(ctx
);
476 struct st_texture_image
*stImage
= st_texture_image(texImage
);
477 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
478 const GLuint level
= texImage
->Level
;
480 DBG("%s\n", __FUNCTION__
);
485 assert(!texImage
->Data
);
486 assert(!stImage
->pt
); /* xxx this might be wrong */
488 /* Look if the parent texture object has space for this image */
490 level
<= stObj
->pt
->last_level
&&
491 st_texture_match_image(stObj
->pt
, texImage
)) {
492 /* this image will fit in the existing texture object's memory */
493 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
497 /* The parent texture object does not have space for this image */
499 pipe_resource_reference(&stObj
->pt
, NULL
);
500 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
502 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
503 /* Probably out of memory.
504 * Try flushing any pending rendering, then retry.
507 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
508 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
514 st_texture_match_image(stObj
->pt
, texImage
)) {
515 /* The image will live in the object's mipmap memory */
516 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
521 /* Create a new, temporary texture/resource/buffer to hold this
524 enum pipe_format format
=
525 st_mesa_format_to_pipe_format(texImage
->TexFormat
);
526 GLuint bindings
= default_bindings(st
, format
);
527 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
529 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
530 width
, height
, depth
,
531 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
533 stImage
->pt
= st_texture_create(st
,
534 gl_target_to_pipe(stObj
->base
.Target
),
542 return stImage
->pt
!= NULL
;
548 * Adjust pixel unpack params and image dimensions to strip off the
550 * Gallium doesn't support texture borders. They've seldem been used
551 * and seldom been implemented correctly anyway.
552 * \param unpackNew returns the new pixel unpack parameters
555 strip_texture_border(GLint border
,
556 GLint
*width
, GLint
*height
, GLint
*depth
,
557 const struct gl_pixelstore_attrib
*unpack
,
558 struct gl_pixelstore_attrib
*unpackNew
)
560 assert(border
> 0); /* sanity check */
562 *unpackNew
= *unpack
;
564 if (unpackNew
->RowLength
== 0)
565 unpackNew
->RowLength
= *width
;
567 if (depth
&& unpackNew
->ImageHeight
== 0)
568 unpackNew
->ImageHeight
= *height
;
570 unpackNew
->SkipPixels
+= border
;
572 unpackNew
->SkipRows
+= border
;
574 unpackNew
->SkipImages
+= border
;
577 *width
= *width
- 2 * border
;
578 if (height
&& *height
>= 3)
579 *height
= *height
- 2 * border
;
580 if (depth
&& *depth
>= 3)
581 *depth
= *depth
- 2 * border
;
586 * Do glTexImage1/2/3D().
589 st_TexImage(struct gl_context
* ctx
,
591 GLenum target
, GLint level
,
592 GLint internalFormat
,
593 GLint width
, GLint height
, GLint depth
,
595 GLenum format
, GLenum type
, const void *pixels
,
596 const struct gl_pixelstore_attrib
*unpack
,
597 struct gl_texture_object
*texObj
,
598 struct gl_texture_image
*texImage
,
599 GLsizei imageSize
, GLboolean compressed_src
)
601 struct st_context
*st
= st_context(ctx
);
602 struct st_texture_object
*stObj
= st_texture_object(texObj
);
603 struct st_texture_image
*stImage
= st_texture_image(texImage
);
604 GLuint dstRowStride
= 0;
605 struct gl_pixelstore_attrib unpackNB
;
606 enum pipe_transfer_usage transfer_usage
= 0;
608 DBG("%s target %s level %d %dx%dx%d border %d\n", __FUNCTION__
,
609 _mesa_lookup_enum_by_nr(target
), level
, width
, height
, depth
, border
);
611 /* switch to "normal" */
612 if (stObj
->surface_based
) {
615 _mesa_clear_texture_object(ctx
, texObj
);
616 pipe_resource_reference(&stObj
->pt
, NULL
);
618 /* oops, need to init this image again */
619 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
620 internalFormat
, format
, type
);
622 _mesa_init_teximage_fields(ctx
, target
, texImage
,
623 width
, height
, depth
, border
,
624 internalFormat
, texFormat
);
626 stObj
->surface_based
= GL_FALSE
;
629 /* gallium does not support texture borders, strip it off */
631 strip_texture_border(border
, &width
, &height
, &depth
, unpack
, &unpackNB
);
633 texImage
->Width
= width
;
634 texImage
->Height
= height
;
635 texImage
->Depth
= depth
;
636 texImage
->Border
= 0;
640 assert(texImage
->Width
== width
);
641 assert(texImage
->Height
== height
);
642 assert(texImage
->Depth
== depth
);
645 stImage
->base
.Face
= _mesa_tex_target_to_face(target
);
646 stImage
->base
.Level
= level
;
648 /* Release the reference to a potentially orphaned buffer.
649 * Release any old malloced memory.
652 pipe_resource_reference(&stImage
->pt
, NULL
);
653 assert(!texImage
->Data
);
655 else if (texImage
->Data
) {
656 _mesa_align_free(texImage
->Data
);
660 * See if the new image is somehow incompatible with the existing
661 * mipmap. If so, free the old mipmap.
664 if (level
> (GLint
) stObj
->pt
->last_level
||
665 !st_texture_match_image(stObj
->pt
, &stImage
->base
)) {
667 pipe_resource_reference(&stObj
->pt
, NULL
);
669 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
673 if (width
== 0 || height
== 0 || depth
== 0) {
674 /* stop after freeing old image */
679 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
680 /* Probably out of memory.
681 * Try flushing any pending rendering, then retry.
684 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
685 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
691 assert(!stImage
->pt
);
693 /* Check if this texture image can live inside the texture object's buffer.
694 * If so, store the image there. Otherwise the image will temporarily live
698 st_texture_match_image(stObj
->pt
, &stImage
->base
)) {
700 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
705 DBG("XXX: Image did not fit into texture - storing in local memory!\n");
707 /* Pixel data may come from regular user memory or a PBO. For the later,
708 * do bounds checking and map the PBO to read pixels data from it.
710 * XXX we should try to use a GPU-accelerated path to copy the image data
711 * from the PBO to the texture.
713 if (compressed_src
) {
714 pixels
= _mesa_validate_pbo_compressed_teximage(ctx
, imageSize
, pixels
,
716 "glCompressedTexImage");
719 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, 1,
721 pixels
, unpack
, "glTexImage");
724 /* for a 1D array upload the image as a series of layer with height = 1 */
725 if (target
== GL_TEXTURE_1D_ARRAY
) {
731 * Prepare to store the texture data. Either map the gallium texture buffer
732 * memory or malloc space for it.
736 /* We've allocated texture resource, but have no pixel data - all done. */
740 /* Store the image in the gallium transfer object */
741 if (format
== GL_DEPTH_COMPONENT
&&
742 util_format_is_depth_and_stencil(stImage
->pt
->format
))
743 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
745 transfer_usage
= PIPE_TRANSFER_WRITE
;
747 texImage
->Data
= st_texture_image_map(st
, stImage
, 0,
748 transfer_usage
, 0, 0, width
, height
);
749 if(stImage
->transfer
)
750 dstRowStride
= stImage
->transfer
->stride
;
753 /* Allocate regular memory and store the image there temporarily. */
754 GLuint imageSize
= _mesa_format_image_size(texImage
->TexFormat
,
755 width
, height
, depth
);
756 dstRowStride
= _mesa_format_row_stride(texImage
->TexFormat
, width
);
758 texImage
->Data
= _mesa_align_malloc(imageSize
, 16);
761 if (!texImage
->Data
) {
762 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
767 /* We've allocated texture memory, but have no pixel data - all done. */
771 DBG("Upload image %dx%dx%d row_len %x pitch %x\n",
772 width
, height
, depth
, width
, dstRowStride
);
774 /* Copy user texture image into the texture buffer.
776 if (compressed_src
) {
777 const GLuint srcRowStride
=
778 _mesa_format_row_stride(texImage
->TexFormat
, width
);
779 if (dstRowStride
== srcRowStride
) {
780 memcpy(texImage
->Data
, pixels
, imageSize
);
783 char *dst
= texImage
->Data
;
784 const char *src
= pixels
;
785 GLuint i
, bw
, bh
, lines
;
786 _mesa_get_format_block_size(texImage
->TexFormat
, &bw
, &bh
);
787 lines
= (height
+ bh
- 1) / bh
;
789 for (i
= 0; i
< lines
; ++i
) {
790 memcpy(dst
, src
, srcRowStride
);
797 const GLuint srcImageStride
=
798 _mesa_image_image_stride(unpack
, width
, height
, format
, type
);
800 const GLubyte
*src
= (const GLubyte
*) pixels
;
802 for (i
= 0; i
< depth
; i
++) {
803 if (!_mesa_texstore(ctx
, dims
,
804 texImage
->_BaseFormat
,
807 0, 0, 0, /* dstX/Y/Zoffset */
809 texImage
->ImageOffsets
,
811 format
, type
, src
, unpack
)) {
812 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
815 if (stImage
->pt
&& i
+ 1 < depth
) {
816 /* unmap this slice */
817 st_texture_image_unmap(st
, stImage
);
818 /* map next slice of 3D texture */
819 texImage
->Data
= st_texture_image_map(st
, stImage
, i
+ 1,
820 transfer_usage
, 0, 0,
822 src
+= srcImageStride
;
828 _mesa_unmap_teximage_pbo(ctx
, unpack
);
830 if (stImage
->pt
&& texImage
->Data
) {
831 st_texture_image_unmap(st
, stImage
);
832 texImage
->Data
= NULL
;
838 st_TexImage3D(struct gl_context
* ctx
,
839 GLenum target
, GLint level
,
840 GLint internalFormat
,
841 GLint width
, GLint height
, GLint depth
,
843 GLenum format
, GLenum type
, const void *pixels
,
844 const struct gl_pixelstore_attrib
*unpack
,
845 struct gl_texture_object
*texObj
,
846 struct gl_texture_image
*texImage
)
848 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
849 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
855 st_TexImage2D(struct gl_context
* ctx
,
856 GLenum target
, GLint level
,
857 GLint internalFormat
,
858 GLint width
, GLint height
, GLint border
,
859 GLenum format
, GLenum type
, const void *pixels
,
860 const struct gl_pixelstore_attrib
*unpack
,
861 struct gl_texture_object
*texObj
,
862 struct gl_texture_image
*texImage
)
864 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
865 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
870 st_TexImage1D(struct gl_context
* ctx
,
871 GLenum target
, GLint level
,
872 GLint internalFormat
,
873 GLint width
, GLint border
,
874 GLenum format
, GLenum type
, const void *pixels
,
875 const struct gl_pixelstore_attrib
*unpack
,
876 struct gl_texture_object
*texObj
,
877 struct gl_texture_image
*texImage
)
879 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
880 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
885 st_CompressedTexImage2D(struct gl_context
*ctx
, GLenum target
, GLint level
,
886 GLint internalFormat
,
887 GLint width
, GLint height
, GLint border
,
888 GLsizei imageSize
, const GLvoid
*data
,
889 struct gl_texture_object
*texObj
,
890 struct gl_texture_image
*texImage
)
892 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
893 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
899 * glGetTexImage() helper: decompress a compressed texture by rendering
900 * a textured quad. Store the results in the user's buffer.
903 decompress_with_blit(struct gl_context
* ctx
,
904 GLenum format
, GLenum type
, GLvoid
*pixels
,
905 struct gl_texture_image
*texImage
)
907 struct st_context
*st
= st_context(ctx
);
908 struct pipe_context
*pipe
= st
->pipe
;
909 struct st_texture_image
*stImage
= st_texture_image(texImage
);
910 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
911 struct pipe_sampler_view
*src_view
=
912 st_get_texture_sampler_view(stObj
, pipe
);
913 const GLuint width
= texImage
->Width
;
914 const GLuint height
= texImage
->Height
;
915 struct pipe_surface
*dst_surface
;
916 struct pipe_resource
*dst_texture
;
917 struct pipe_transfer
*tex_xfer
;
918 unsigned bind
= (PIPE_BIND_RENDER_TARGET
| /* util_blit may choose to render */
919 PIPE_BIND_TRANSFER_READ
);
921 /* create temp / dest surface */
922 if (!util_create_rgba_surface(pipe
, width
, height
, bind
,
923 &dst_texture
, &dst_surface
)) {
924 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
925 "in decompress_with_blit()");
929 /* Disable conditional rendering. */
930 if (st
->render_condition
) {
931 pipe
->render_condition(pipe
, NULL
, 0);
934 /* Choose the source mipmap level */
935 src_view
->u
.tex
.first_level
= src_view
->u
.tex
.last_level
= texImage
->Level
;
937 /* blit/render/decompress */
938 util_blit_pixels_tex(st
->blit
,
939 src_view
, /* pipe_resource (src) */
940 0, 0, /* src x0, y0 */
941 width
, height
, /* src x1, y1 */
942 dst_surface
, /* pipe_surface (dst) */
943 0, 0, /* dst x0, y0 */
944 width
, height
, /* dst x1, y1 */
946 PIPE_TEX_MIPFILTER_NEAREST
);
948 /* Restore conditional rendering state. */
949 if (st
->render_condition
) {
950 pipe
->render_condition(pipe
, st
->render_condition
,
954 /* map the dst_surface so we can read from it */
955 tex_xfer
= pipe_get_transfer(pipe
,
958 0, 0, width
, height
);
960 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
962 /* copy/pack data into user buffer */
963 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
965 const uint bytesPerRow
= width
* util_format_get_blocksize(stImage
->pt
->format
);
966 ubyte
*map
= pipe_transfer_map(pipe
, tex_xfer
);
968 for (row
= 0; row
< height
; row
++) {
969 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
970 height
, format
, type
, row
, 0);
971 memcpy(dest
, map
, bytesPerRow
);
972 map
+= tex_xfer
->stride
;
974 pipe_transfer_unmap(pipe
, tex_xfer
);
977 /* format translation via floats */
979 enum pipe_format pformat
= util_format_linear(dst_texture
->format
);
980 for (row
= 0; row
< height
; row
++) {
981 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
982 GLfloat rgba
[4 * MAX_WIDTH
];
983 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
984 height
, format
, type
, row
, 0);
986 if (ST_DEBUG
& DEBUG_FALLBACK
)
987 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
989 /* get float[4] rgba row from surface */
990 pipe_get_tile_rgba_format(pipe
, tex_xfer
, 0, row
, width
, 1,
993 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
994 type
, dest
, &ctx
->Pack
, transferOps
);
998 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
1000 pipe
->transfer_destroy(pipe
, tex_xfer
);
1002 /* destroy the temp / dest surface */
1003 util_destroy_rgba_surface(dst_texture
, dst_surface
);
1009 * Called via ctx->Driver.GetTexImage()
1012 st_GetTexImage(struct gl_context
* ctx
,
1013 GLenum format
, GLenum type
, GLvoid
* pixels
,
1014 struct gl_texture_image
*texImage
)
1016 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1018 if (stImage
->pt
&& util_format_is_s3tc(stImage
->pt
->format
)) {
1019 /* Need to decompress the texture.
1020 * We'll do this by rendering a textured quad (which is hopefully
1021 * faster than using the fallback code in texcompress.c.
1022 * Note that we only expect RGBA formats (no Z/depth formats).
1024 decompress_with_blit(ctx
, format
, type
, pixels
, texImage
);
1027 _mesa_get_teximage(ctx
, format
, type
, pixels
, texImage
);
1033 st_TexSubimage(struct gl_context
*ctx
, GLint dims
, GLenum target
, GLint level
,
1034 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1035 GLint width
, GLint height
, GLint depth
,
1036 GLenum format
, GLenum type
, const void *pixels
,
1037 const struct gl_pixelstore_attrib
*packing
,
1038 struct gl_texture_object
*texObj
,
1039 struct gl_texture_image
*texImage
)
1041 struct st_context
*st
= st_context(ctx
);
1042 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1043 GLuint dstRowStride
;
1044 const GLuint srcImageStride
=
1045 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1048 /* init to silence warning only: */
1049 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1051 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1052 _mesa_lookup_enum_by_nr(target
),
1053 level
, xoffset
, yoffset
, width
, height
);
1056 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1057 type
, pixels
, packing
, "glTexSubImage2D");
1061 /* for a 1D array upload the image as a series of layer with height = 1 */
1062 if (target
== GL_TEXTURE_1D_ARRAY
) {
1067 /* Map buffer if necessary. Need to lock to prevent other contexts
1068 * from uploading the buffer under us.
1071 if (format
== GL_DEPTH_COMPONENT
&&
1072 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1073 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1075 transfer_usage
= PIPE_TRANSFER_WRITE
;
1077 texImage
->Data
= st_texture_image_map(st
, stImage
, zoffset
,
1083 if (!texImage
->Data
) {
1084 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1088 src
= (const GLubyte
*) pixels
;
1089 dstRowStride
= stImage
->transfer
->stride
;
1091 for (i
= 0; i
< depth
; i
++) {
1092 if (!_mesa_texstore(ctx
, dims
, texImage
->_BaseFormat
,
1093 texImage
->TexFormat
,
1097 texImage
->ImageOffsets
,
1099 format
, type
, src
, packing
)) {
1100 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1103 if (stImage
->pt
&& i
+ 1 < depth
) {
1104 /* unmap this slice */
1105 st_texture_image_unmap(st
, stImage
);
1106 /* map next slice of 3D texture */
1107 texImage
->Data
= st_texture_image_map(st
, stImage
,
1112 src
+= srcImageStride
;
1117 _mesa_unmap_teximage_pbo(ctx
, packing
);
1119 if (stImage
->pt
&& texImage
->Data
) {
1120 st_texture_image_unmap(st
, stImage
);
1121 texImage
->Data
= NULL
;
1128 st_TexSubImage3D(struct gl_context
*ctx
, GLenum target
, GLint level
,
1129 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1130 GLsizei width
, GLsizei height
, GLsizei depth
,
1131 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1132 const struct gl_pixelstore_attrib
*packing
,
1133 struct gl_texture_object
*texObj
,
1134 struct gl_texture_image
*texImage
)
1136 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1137 width
, height
, depth
, format
, type
,
1138 pixels
, packing
, texObj
, texImage
);
1143 st_TexSubImage2D(struct gl_context
*ctx
, GLenum target
, GLint level
,
1144 GLint xoffset
, GLint yoffset
,
1145 GLsizei width
, GLsizei height
,
1146 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1147 const struct gl_pixelstore_attrib
*packing
,
1148 struct gl_texture_object
*texObj
,
1149 struct gl_texture_image
*texImage
)
1151 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1152 width
, height
, 1, format
, type
,
1153 pixels
, packing
, texObj
, texImage
);
1158 st_TexSubImage1D(struct gl_context
*ctx
, GLenum target
, GLint level
,
1159 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1160 const GLvoid
* pixels
,
1161 const struct gl_pixelstore_attrib
*packing
,
1162 struct gl_texture_object
*texObj
,
1163 struct gl_texture_image
*texImage
)
1165 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1166 format
, type
, pixels
, packing
, texObj
, texImage
);
1171 st_CompressedTexSubImage1D(struct gl_context
*ctx
, GLenum target
, GLint level
,
1172 GLint xoffset
, GLsizei width
,
1174 GLsizei imageSize
, const GLvoid
*data
,
1175 struct gl_texture_object
*texObj
,
1176 struct gl_texture_image
*texImage
)
1183 st_CompressedTexSubImage2D(struct gl_context
*ctx
, GLenum target
, GLint level
,
1184 GLint xoffset
, GLint yoffset
,
1185 GLsizei width
, GLint height
,
1187 GLsizei imageSize
, const GLvoid
*data
,
1188 struct gl_texture_object
*texObj
,
1189 struct gl_texture_image
*texImage
)
1191 struct st_context
*st
= st_context(ctx
);
1192 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1196 enum pipe_format pformat
;
1199 pformat
= stImage
->pt
->format
;
1201 texImage
->Data
= st_texture_image_map(st
, stImage
, 0,
1202 PIPE_TRANSFER_WRITE
,
1206 srcBlockStride
= util_format_get_stride(pformat
, width
);
1207 dstBlockStride
= stImage
->transfer
->stride
;
1209 assert(stImage
->pt
);
1210 /* TODO find good values for block and strides */
1211 /* TODO also adjust texImage->data for yoffset/xoffset */
1215 if (!texImage
->Data
) {
1216 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1220 assert(xoffset
% util_format_get_blockwidth(pformat
) == 0);
1221 assert(yoffset
% util_format_get_blockheight(pformat
) == 0);
1223 for (y
= 0; y
< height
; y
+= util_format_get_blockheight(pformat
)) {
1224 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1225 const char *src
= (const char*)data
+ srcBlockStride
* util_format_get_nblocksy(pformat
, y
);
1226 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* util_format_get_nblocksy(pformat
, y
);
1227 memcpy(dst
, src
, util_format_get_stride(pformat
, width
));
1231 st_texture_image_unmap(st
, stImage
);
1232 texImage
->Data
= NULL
;
1238 st_CompressedTexSubImage3D(struct gl_context
*ctx
, GLenum target
, GLint level
,
1239 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1240 GLsizei width
, GLint height
, GLint depth
,
1242 GLsizei imageSize
, const GLvoid
*data
,
1243 struct gl_texture_object
*texObj
,
1244 struct gl_texture_image
*texImage
)
1252 * Do a CopyTexSubImage operation using a read transfer from the source,
1253 * a write transfer to the destination and get_tile()/put_tile() to access
1254 * the pixels/texels.
1256 * Note: srcY=0=TOP of renderbuffer
1259 fallback_copy_texsubimage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1260 struct st_renderbuffer
*strb
,
1261 struct st_texture_image
*stImage
,
1263 GLint destX
, GLint destY
, GLint destZ
,
1264 GLint srcX
, GLint srcY
,
1265 GLsizei width
, GLsizei height
)
1267 struct st_context
*st
= st_context(ctx
);
1268 struct pipe_context
*pipe
= st
->pipe
;
1269 struct pipe_transfer
*src_trans
;
1271 enum pipe_transfer_usage transfer_usage
;
1273 if (ST_DEBUG
& DEBUG_FALLBACK
)
1274 debug_printf("%s: fallback processing\n", __FUNCTION__
);
1276 assert(width
<= MAX_WIDTH
);
1278 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1279 srcY
= strb
->Base
.Height
- srcY
- height
;
1282 src_trans
= pipe_get_transfer(pipe
,
1285 strb
->rtt_face
+ strb
->rtt_slice
,
1290 if ((baseFormat
== GL_DEPTH_COMPONENT
||
1291 baseFormat
== GL_DEPTH_STENCIL
) &&
1292 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1293 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1295 transfer_usage
= PIPE_TRANSFER_WRITE
;
1297 /* XXX this used to ignore destZ param */
1298 texDest
= st_texture_image_map(st
, stImage
, destZ
, transfer_usage
,
1299 destX
, destY
, width
, height
);
1301 if (baseFormat
== GL_DEPTH_COMPONENT
||
1302 baseFormat
== GL_DEPTH_STENCIL
) {
1303 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1304 ctx
->Pixel
.DepthBias
!= 0.0F
);
1307 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1308 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1317 /* To avoid a large temp memory allocation, do copy row by row */
1318 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1319 uint data
[MAX_WIDTH
];
1320 pipe_get_tile_z(pipe
, src_trans
, 0, srcY
, width
, 1, data
);
1322 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1324 pipe_put_tile_z(pipe
, stImage
->transfer
, 0, row
, width
, 1, data
);
1330 (GLfloat
*) malloc(width
* height
* 4 * sizeof(GLfloat
));
1332 if (tempSrc
&& texDest
) {
1333 const GLint dims
= 2;
1334 const GLint dstRowStride
= stImage
->transfer
->stride
;
1335 struct gl_texture_image
*texImage
= &stImage
->base
;
1336 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1338 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1339 unpack
.Invert
= GL_TRUE
;
1342 /* get float/RGBA image from framebuffer */
1343 /* XXX this usually involves a lot of int/float conversion.
1344 * try to avoid that someday.
1346 pipe_get_tile_rgba_format(pipe
, src_trans
, 0, 0, width
, height
,
1347 util_format_linear(strb
->texture
->format
),
1350 /* Store into texture memory.
1351 * Note that this does some special things such as pixel transfer
1352 * ops and format conversion. In particular, if the dest tex format
1353 * is actually RGBA but the user created the texture as GL_RGB we
1354 * need to fill-in/override the alpha channel with 1.0.
1356 _mesa_texstore(ctx
, dims
,
1357 texImage
->_BaseFormat
,
1358 texImage
->TexFormat
,
1362 texImage
->ImageOffsets
,
1364 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1368 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1375 st_texture_image_unmap(st
, stImage
);
1376 pipe
->transfer_destroy(pipe
, src_trans
);
1382 * If the format of the src renderbuffer and the format of the dest
1383 * texture are compatible (in terms of blitting), return a TGSI writemask
1384 * to be used during the blit.
1385 * If the src/dest are incompatible, return 0.
1388 compatible_src_dst_formats(struct gl_context
*ctx
,
1389 const struct gl_renderbuffer
*src
,
1390 const struct gl_texture_image
*dst
)
1392 /* Get logical base formats for the src and dest.
1393 * That is, use the user-requested formats and not the actual, device-
1395 * For example, the user may have requested an A8 texture but the
1396 * driver may actually be using an RGBA texture format. When we
1397 * copy/blit to that texture, we only want to copy the Alpha channel
1398 * and not the RGB channels.
1400 * Similarly, when the src FBO was created an RGB format may have been
1401 * requested but the driver actually chose an RGBA format. In that case,
1402 * we don't want to copy the undefined Alpha channel to the dest texture
1403 * (it should be 1.0).
1405 const GLenum srcFormat
= _mesa_base_fbo_format(ctx
, src
->InternalFormat
);
1406 const GLenum dstFormat
= _mesa_base_tex_format(ctx
, dst
->InternalFormat
);
1409 * XXX when we have red-only and red/green renderbuffers we'll need
1410 * to add more cases here (or implement a general-purpose routine that
1411 * queries the existance of the R,G,B,A channels in the src and dest).
1413 if (srcFormat
== dstFormat
) {
1414 /* This is the same as matching_base_formats, which should
1415 * always pass, as it did previously.
1417 return TGSI_WRITEMASK_XYZW
;
1419 else if (srcFormat
== GL_RGB
&& dstFormat
== GL_RGBA
) {
1420 /* Make sure that A in the dest is 1. The actual src format
1421 * may be RGBA and have undefined A values.
1423 return TGSI_WRITEMASK_XYZ
;
1425 else if (srcFormat
== GL_RGBA
&& dstFormat
== GL_RGB
) {
1426 /* Make sure that A in the dest is 1. The actual dst format
1427 * may be RGBA and will need A=1 to provide proper alpha values
1428 * when sampled later.
1430 return TGSI_WRITEMASK_XYZ
;
1433 if (ST_DEBUG
& DEBUG_FALLBACK
)
1434 debug_printf("%s failed for src %s, dst %s\n",
1436 _mesa_lookup_enum_by_nr(srcFormat
),
1437 _mesa_lookup_enum_by_nr(dstFormat
));
1448 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1449 * Note that the region to copy has already been clipped so we know we
1450 * won't read from outside the source renderbuffer's bounds.
1452 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1455 st_copy_texsubimage(struct gl_context
*ctx
,
1456 GLenum target
, GLint level
,
1457 GLint destX
, GLint destY
, GLint destZ
,
1458 GLint srcX
, GLint srcY
,
1459 GLsizei width
, GLsizei height
)
1461 struct gl_texture_unit
*texUnit
=
1462 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1463 struct gl_texture_object
*texObj
=
1464 _mesa_select_tex_object(ctx
, texUnit
, target
);
1465 struct gl_texture_image
*texImage
=
1466 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1467 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1468 const GLenum texBaseFormat
= texImage
->_BaseFormat
;
1469 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1470 struct st_renderbuffer
*strb
;
1471 struct st_context
*st
= st_context(ctx
);
1472 struct pipe_context
*pipe
= st
->pipe
;
1473 struct pipe_screen
*screen
= pipe
->screen
;
1474 enum pipe_format dest_format
, src_format
;
1475 GLboolean use_fallback
= GL_TRUE
;
1476 GLboolean matching_base_formats
;
1477 GLuint format_writemask
, sample_count
;
1478 struct pipe_surface
*dest_surface
= NULL
;
1479 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1481 /* make sure finalize_textures has been called?
1483 if (0) st_validate_state(st
);
1485 /* determine if copying depth or color data */
1486 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1487 texBaseFormat
== GL_DEPTH_STENCIL
) {
1488 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1489 if (strb
->Base
.Wrapped
) {
1490 strb
= st_renderbuffer(strb
->Base
.Wrapped
);
1494 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1495 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1498 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1499 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1503 sample_count
= strb
->surface
->texture
->nr_samples
;
1504 /* I believe this would be legal, presumably would need to do a resolve
1505 for color, and for depth/stencil spec says to just use one of the
1506 depth/stencil samples per pixel? Need some transfer clarifications. */
1507 assert(sample_count
< 2);
1510 assert(strb
->surface
);
1511 assert(stImage
->pt
);
1513 src_format
= strb
->surface
->format
;
1514 dest_format
= stImage
->pt
->format
;
1517 * Determine if the src framebuffer and dest texture have the same
1518 * base format. We need this to detect a case such as the framebuffer
1519 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1520 * texture format stores RGBA we need to set A=1 (overriding the
1521 * framebuffer's alpha values). We can't do that with the blit or
1522 * textured-quad paths.
1524 matching_base_formats
=
1525 (_mesa_get_format_base_format(strb
->Base
.Format
) ==
1526 _mesa_get_format_base_format(texImage
->TexFormat
));
1527 format_writemask
= compatible_src_dst_formats(ctx
, &strb
->Base
, texImage
);
1529 if (ctx
->_ImageTransferState
== 0x0) {
1531 if (matching_base_formats
&&
1532 src_format
== dest_format
&&
1535 /* use surface_copy() / blit */
1536 struct pipe_box src_box
;
1537 u_box_2d_zslice(srcX
, srcY
, strb
->surface
->u
.tex
.first_layer
,
1538 width
, height
, &src_box
);
1540 /* for resource_copy_region(), y=0=top, always */
1541 pipe
->resource_copy_region(pipe
,
1544 stImage
->base
.Level
,
1545 destX
, destY
, destZ
+ stImage
->base
.Face
,
1548 strb
->surface
->u
.tex
.level
,
1550 use_fallback
= GL_FALSE
;
1552 else if (format_writemask
&&
1553 texBaseFormat
!= GL_DEPTH_COMPONENT
&&
1554 texBaseFormat
!= GL_DEPTH_STENCIL
&&
1555 screen
->is_format_supported(screen
, src_format
,
1556 PIPE_TEXTURE_2D
, sample_count
,
1557 PIPE_BIND_SAMPLER_VIEW
) &&
1558 screen
->is_format_supported(screen
, dest_format
,
1560 PIPE_BIND_RENDER_TARGET
)) {
1561 /* draw textured quad to do the copy */
1563 struct pipe_surface surf_tmpl
;
1564 memset(&surf_tmpl
, 0, sizeof(surf_tmpl
));
1565 surf_tmpl
.format
= util_format_linear(stImage
->pt
->format
);
1566 surf_tmpl
.usage
= PIPE_BIND_RENDER_TARGET
;
1567 surf_tmpl
.u
.tex
.level
= stImage
->base
.Level
;
1568 surf_tmpl
.u
.tex
.first_layer
= stImage
->base
.Face
+ destZ
;
1569 surf_tmpl
.u
.tex
.last_layer
= stImage
->base
.Face
+ destZ
;
1571 dest_surface
= pipe
->create_surface(pipe
, stImage
->pt
,
1575 srcY1
= strb
->Base
.Height
- srcY
- height
;
1576 srcY0
= srcY1
+ height
;
1580 srcY1
= srcY0
+ height
;
1583 /* Disable conditional rendering. */
1584 if (st
->render_condition
) {
1585 pipe
->render_condition(pipe
, NULL
, 0);
1588 util_blit_pixels_writemask(st
->blit
,
1590 strb
->surface
->u
.tex
.level
,
1592 srcX
+ width
, srcY1
,
1593 strb
->surface
->u
.tex
.first_layer
,
1596 destX
+ width
, destY
+ height
,
1597 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1600 /* Restore conditional rendering state. */
1601 if (st
->render_condition
) {
1602 pipe
->render_condition(pipe
, st
->render_condition
,
1603 st
->condition_mode
);
1606 use_fallback
= GL_FALSE
;
1610 pipe_surface_reference(&dest_surface
, NULL
);
1614 /* software fallback */
1615 fallback_copy_texsubimage(ctx
, target
, level
,
1616 strb
, stImage
, texBaseFormat
,
1617 destX
, destY
, destZ
,
1618 srcX
, srcY
, width
, height
);
1625 st_CopyTexSubImage1D(struct gl_context
* ctx
, GLenum target
, GLint level
,
1626 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1628 const GLint yoffset
= 0, zoffset
= 0;
1629 const GLsizei height
= 1;
1630 st_copy_texsubimage(ctx
, target
, level
,
1631 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1632 x
, y
, width
, height
); /* src X, Y, size */
1637 st_CopyTexSubImage2D(struct gl_context
* ctx
, GLenum target
, GLint level
,
1638 GLint xoffset
, GLint yoffset
,
1639 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1641 const GLint zoffset
= 0;
1642 st_copy_texsubimage(ctx
, target
, level
,
1643 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1644 x
, y
, width
, height
); /* src X, Y, size */
1649 st_CopyTexSubImage3D(struct gl_context
* ctx
, GLenum target
, GLint level
,
1650 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1651 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1653 st_copy_texsubimage(ctx
, target
, level
,
1654 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1655 x
, y
, width
, height
); /* src X, Y, size */
1660 * Copy image data from stImage into the texture object 'stObj' at level
1664 copy_image_data_to_texture(struct st_context
*st
,
1665 struct st_texture_object
*stObj
,
1667 struct st_texture_image
*stImage
)
1671 const struct gl_texture_image
*dstImage
=
1672 stObj
->base
.Image
[stImage
->base
.Face
][dstLevel
];
1674 assert(dstImage
->Width
== stImage
->base
.Width
);
1675 assert(dstImage
->Height
== stImage
->base
.Height
);
1676 assert(dstImage
->Depth
== stImage
->base
.Depth
);
1680 /* Copy potentially with the blitter:
1682 st_texture_image_copy(st
->pipe
,
1683 stObj
->pt
, dstLevel
, /* dest texture, level */
1684 stImage
->pt
, stImage
->base
.Level
, /* src texture, level */
1685 stImage
->base
.Face
);
1687 pipe_resource_reference(&stImage
->pt
, NULL
);
1689 else if (stImage
->base
.Data
) {
1690 st_texture_image_data(st
,
1695 stImage
->base
.RowStride
*
1696 util_format_get_blocksize(stObj
->pt
->format
),
1697 stImage
->base
.RowStride
*
1698 stImage
->base
.Height
*
1699 util_format_get_blocksize(stObj
->pt
->format
));
1700 _mesa_align_free(stImage
->base
.Data
);
1701 stImage
->base
.Data
= NULL
;
1704 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1709 * Called during state validation. When this function is finished,
1710 * the texture object should be ready for rendering.
1711 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1714 st_finalize_texture(struct gl_context
*ctx
,
1715 struct pipe_context
*pipe
,
1716 struct gl_texture_object
*tObj
)
1718 struct st_context
*st
= st_context(ctx
);
1719 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1720 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1722 struct st_texture_image
*firstImage
;
1723 enum pipe_format firstImageFormat
;
1724 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
1726 if (stObj
->base
._Complete
) {
1727 /* The texture is complete and we know exactly how many mipmap levels
1728 * are present/needed. This is conditional because we may be called
1729 * from the st_generate_mipmap() function when the texture object is
1730 * incomplete. In that case, we'll have set stObj->lastLevel before
1733 if (stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
1734 stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
)
1735 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1737 stObj
->lastLevel
= stObj
->base
._MaxLevel
;
1740 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1743 /* If both firstImage and stObj point to a texture which can contain
1744 * all active images, favour firstImage. Note that because of the
1745 * completeness requirement, we know that the image dimensions
1748 if (firstImage
->pt
&&
1749 firstImage
->pt
!= stObj
->pt
&&
1750 (!stObj
->pt
|| firstImage
->pt
->last_level
>= stObj
->pt
->last_level
)) {
1751 pipe_resource_reference(&stObj
->pt
, firstImage
->pt
);
1752 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
1755 /* Find gallium format for the Mesa texture */
1756 firstImageFormat
= st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1758 /* Find size of level=0 Gallium mipmap image, plus number of texture layers */
1760 GLuint width
, height
, depth
;
1761 if (!guess_base_level_size(stObj
->base
.Target
,
1762 firstImage
->base
.Width2
,
1763 firstImage
->base
.Height2
,
1764 firstImage
->base
.Depth2
,
1765 firstImage
->base
.Level
,
1766 &width
, &height
, &depth
)) {
1767 width
= stObj
->width0
;
1768 height
= stObj
->height0
;
1769 depth
= stObj
->depth0
;
1771 /* convert GL dims to Gallium dims */
1772 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
, width
, height
, depth
,
1773 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1776 /* If we already have a gallium texture, check that it matches the texture
1777 * object's format, target, size, num_levels, etc.
1780 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1781 !st_sampler_compat_formats(stObj
->pt
->format
, firstImageFormat
) ||
1782 stObj
->pt
->last_level
< stObj
->lastLevel
||
1783 stObj
->pt
->width0
!= ptWidth
||
1784 stObj
->pt
->height0
!= ptHeight
||
1785 stObj
->pt
->depth0
!= ptDepth
||
1786 stObj
->pt
->array_size
!= ptLayers
)
1788 /* The gallium texture does not match the Mesa texture so delete the
1789 * gallium texture now. We'll make a new one below.
1791 pipe_resource_reference(&stObj
->pt
, NULL
);
1792 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
1793 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1797 /* May need to create a new gallium texture:
1800 GLuint bindings
= default_bindings(st
, firstImageFormat
);
1802 stObj
->pt
= st_texture_create(st
,
1803 gl_target_to_pipe(stObj
->base
.Target
),
1813 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1818 /* Pull in any images not in the object's texture:
1820 for (face
= 0; face
< nr_faces
; face
++) {
1822 for (level
= stObj
->base
.BaseLevel
; level
<= stObj
->lastLevel
; level
++) {
1823 struct st_texture_image
*stImage
=
1824 st_texture_image(stObj
->base
.Image
[face
][level
]);
1826 /* Need to import images in main memory or held in other textures.
1828 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1830 (stImage
->base
.Width
== u_minify(stObj
->width0
, level
) &&
1831 stImage
->base
.Height
== u_minify(stObj
->height0
, level
) &&
1832 stImage
->base
.Depth
== u_minify(stObj
->depth0
, level
))) {
1833 /* src image fits expected dest mipmap level size */
1834 copy_image_data_to_texture(st
, stObj
, level
, stImage
);
1845 * Returns pointer to a default/dummy texture.
1846 * This is typically used when the current shader has tex/sample instructions
1847 * but the user has not provided a (any) texture(s).
1849 struct gl_texture_object
*
1850 st_get_default_texture(struct st_context
*st
)
1852 if (!st
->default_texture
) {
1853 static const GLenum target
= GL_TEXTURE_2D
;
1854 GLubyte pixels
[16][16][4];
1855 struct gl_texture_object
*texObj
;
1856 struct gl_texture_image
*texImg
;
1859 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1860 * when attempting to sample incomplete textures.
1862 for (i
= 0; i
< 16; i
++) {
1863 for (j
= 0; j
< 16; j
++) {
1864 pixels
[i
][j
][0] = 0;
1865 pixels
[i
][j
][1] = 0;
1866 pixels
[i
][j
][2] = 0;
1867 pixels
[i
][j
][3] = 255;
1871 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1873 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1875 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1876 16, 16, 1, 0, /* w, h, d, border */
1877 GL_RGBA
, MESA_FORMAT_RGBA8888
);
1879 st_TexImage(st
->ctx
, 2, target
,
1880 0, GL_RGBA
, /* level, intformat */
1881 16, 16, 1, 0, /* w, h, d, border */
1882 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1883 &st
->ctx
->DefaultPacking
,
1887 texObj
->Sampler
.MinFilter
= GL_NEAREST
;
1888 texObj
->Sampler
.MagFilter
= GL_NEAREST
;
1889 texObj
->_Complete
= GL_TRUE
;
1891 st
->default_texture
= texObj
;
1893 return st
->default_texture
;
1898 st_init_texture_functions(struct dd_function_table
*functions
)
1900 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1901 functions
->TexImage1D
= st_TexImage1D
;
1902 functions
->TexImage2D
= st_TexImage2D
;
1903 functions
->TexImage3D
= st_TexImage3D
;
1904 functions
->TexSubImage1D
= st_TexSubImage1D
;
1905 functions
->TexSubImage2D
= st_TexSubImage2D
;
1906 functions
->TexSubImage3D
= st_TexSubImage3D
;
1907 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1908 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1909 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1910 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1911 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1912 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1913 functions
->GenerateMipmap
= st_generate_mipmap
;
1915 functions
->GetTexImage
= st_GetTexImage
;
1917 /* compressed texture functions */
1918 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1919 functions
->GetCompressedTexImage
= _mesa_get_compressed_teximage
;
1921 functions
->NewTextureObject
= st_NewTextureObject
;
1922 functions
->NewTextureImage
= st_NewTextureImage
;
1923 functions
->DeleteTextureImage
= st_DeleteTextureImage
;
1924 functions
->DeleteTexture
= st_DeleteTextureObject
;
1925 functions
->AllocTextureImageBuffer
= st_AllocTextureImageBuffer
;
1926 functions
->FreeTextureImageBuffer
= st_FreeTextureImageBuffer
;
1927 functions
->MapTextureImage
= st_MapTextureImage
;
1928 functions
->UnmapTextureImage
= st_UnmapTextureImage
;
1930 functions
->TextureMemCpy
= do_memcpy
;
1932 /* XXX Temporary until we can query pipe's texture sizes */
1933 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;