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
,
806 0, 0, 0, /* dstX/Y/Zoffset */
808 (GLubyte
**) &texImage
->Data
, /* dstSlice */
810 format
, type
, src
, unpack
)) {
811 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
814 if (stImage
->pt
&& i
+ 1 < depth
) {
815 /* unmap this slice */
816 st_texture_image_unmap(st
, stImage
);
817 /* map next slice of 3D texture */
818 texImage
->Data
= st_texture_image_map(st
, stImage
, i
+ 1,
819 transfer_usage
, 0, 0,
821 src
+= srcImageStride
;
827 _mesa_unmap_teximage_pbo(ctx
, unpack
);
829 if (stImage
->pt
&& texImage
->Data
) {
830 st_texture_image_unmap(st
, stImage
);
831 texImage
->Data
= NULL
;
837 st_TexImage3D(struct gl_context
* ctx
,
838 GLenum target
, GLint level
,
839 GLint internalFormat
,
840 GLint width
, GLint height
, GLint depth
,
842 GLenum format
, GLenum type
, const void *pixels
,
843 const struct gl_pixelstore_attrib
*unpack
,
844 struct gl_texture_object
*texObj
,
845 struct gl_texture_image
*texImage
)
847 st_TexImage(ctx
, 3, target
, level
, internalFormat
, width
, height
, depth
,
848 border
, format
, type
, pixels
, unpack
, texObj
, texImage
,
854 st_TexImage2D(struct gl_context
* ctx
,
855 GLenum target
, GLint level
,
856 GLint internalFormat
,
857 GLint width
, GLint height
, GLint border
,
858 GLenum format
, GLenum type
, const void *pixels
,
859 const struct gl_pixelstore_attrib
*unpack
,
860 struct gl_texture_object
*texObj
,
861 struct gl_texture_image
*texImage
)
863 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
864 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
869 st_TexImage1D(struct gl_context
* ctx
,
870 GLenum target
, GLint level
,
871 GLint internalFormat
,
872 GLint width
, GLint border
,
873 GLenum format
, GLenum type
, const void *pixels
,
874 const struct gl_pixelstore_attrib
*unpack
,
875 struct gl_texture_object
*texObj
,
876 struct gl_texture_image
*texImage
)
878 st_TexImage(ctx
, 1, target
, level
, internalFormat
, width
, 1, 1, border
,
879 format
, type
, pixels
, unpack
, texObj
, texImage
, 0, GL_FALSE
);
884 st_CompressedTexImage2D(struct gl_context
*ctx
, GLenum target
, GLint level
,
885 GLint internalFormat
,
886 GLint width
, GLint height
, GLint border
,
887 GLsizei imageSize
, const GLvoid
*data
,
888 struct gl_texture_object
*texObj
,
889 struct gl_texture_image
*texImage
)
891 st_TexImage(ctx
, 2, target
, level
, internalFormat
, width
, height
, 1, border
,
892 0, 0, data
, &ctx
->Unpack
, texObj
, texImage
, imageSize
, GL_TRUE
);
898 * glGetTexImage() helper: decompress a compressed texture by rendering
899 * a textured quad. Store the results in the user's buffer.
902 decompress_with_blit(struct gl_context
* ctx
,
903 GLenum format
, GLenum type
, GLvoid
*pixels
,
904 struct gl_texture_image
*texImage
)
906 struct st_context
*st
= st_context(ctx
);
907 struct pipe_context
*pipe
= st
->pipe
;
908 struct st_texture_image
*stImage
= st_texture_image(texImage
);
909 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
910 struct pipe_sampler_view
*src_view
=
911 st_get_texture_sampler_view(stObj
, pipe
);
912 const GLuint width
= texImage
->Width
;
913 const GLuint height
= texImage
->Height
;
914 struct pipe_surface
*dst_surface
;
915 struct pipe_resource
*dst_texture
;
916 struct pipe_transfer
*tex_xfer
;
917 unsigned bind
= (PIPE_BIND_RENDER_TARGET
| /* util_blit may choose to render */
918 PIPE_BIND_TRANSFER_READ
);
920 /* create temp / dest surface */
921 if (!util_create_rgba_surface(pipe
, width
, height
, bind
,
922 &dst_texture
, &dst_surface
)) {
923 _mesa_problem(ctx
, "util_create_rgba_surface() failed "
924 "in decompress_with_blit()");
928 /* Disable conditional rendering. */
929 if (st
->render_condition
) {
930 pipe
->render_condition(pipe
, NULL
, 0);
933 /* Choose the source mipmap level */
934 src_view
->u
.tex
.first_level
= src_view
->u
.tex
.last_level
= texImage
->Level
;
936 /* blit/render/decompress */
937 util_blit_pixels_tex(st
->blit
,
938 src_view
, /* pipe_resource (src) */
939 0, 0, /* src x0, y0 */
940 width
, height
, /* src x1, y1 */
941 dst_surface
, /* pipe_surface (dst) */
942 0, 0, /* dst x0, y0 */
943 width
, height
, /* dst x1, y1 */
945 PIPE_TEX_MIPFILTER_NEAREST
);
947 /* Restore conditional rendering state. */
948 if (st
->render_condition
) {
949 pipe
->render_condition(pipe
, st
->render_condition
,
953 /* map the dst_surface so we can read from it */
954 tex_xfer
= pipe_get_transfer(pipe
,
957 0, 0, width
, height
);
959 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
961 /* copy/pack data into user buffer */
962 if (st_equal_formats(stImage
->pt
->format
, format
, type
)) {
964 const uint bytesPerRow
= width
* util_format_get_blocksize(stImage
->pt
->format
);
965 ubyte
*map
= pipe_transfer_map(pipe
, tex_xfer
);
967 for (row
= 0; row
< height
; row
++) {
968 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
969 height
, format
, type
, row
, 0);
970 memcpy(dest
, map
, bytesPerRow
);
971 map
+= tex_xfer
->stride
;
973 pipe_transfer_unmap(pipe
, tex_xfer
);
976 /* format translation via floats */
978 enum pipe_format pformat
= util_format_linear(dst_texture
->format
);
979 for (row
= 0; row
< height
; row
++) {
980 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
981 GLfloat rgba
[4 * MAX_WIDTH
];
982 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
983 height
, format
, type
, row
, 0);
985 if (ST_DEBUG
& DEBUG_FALLBACK
)
986 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
988 /* get float[4] rgba row from surface */
989 pipe_get_tile_rgba_format(pipe
, tex_xfer
, 0, row
, width
, 1,
992 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
993 type
, dest
, &ctx
->Pack
, transferOps
);
997 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
999 pipe
->transfer_destroy(pipe
, tex_xfer
);
1001 /* destroy the temp / dest surface */
1002 util_destroy_rgba_surface(dst_texture
, dst_surface
);
1008 * Called via ctx->Driver.GetTexImage()
1011 st_GetTexImage(struct gl_context
* ctx
,
1012 GLenum format
, GLenum type
, GLvoid
* pixels
,
1013 struct gl_texture_image
*texImage
)
1015 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1017 if (stImage
->pt
&& util_format_is_s3tc(stImage
->pt
->format
)) {
1018 /* Need to decompress the texture.
1019 * We'll do this by rendering a textured quad (which is hopefully
1020 * faster than using the fallback code in texcompress.c.
1021 * Note that we only expect RGBA formats (no Z/depth formats).
1023 decompress_with_blit(ctx
, format
, type
, pixels
, texImage
);
1026 _mesa_get_teximage(ctx
, format
, type
, pixels
, texImage
);
1032 st_TexSubimage(struct gl_context
*ctx
, GLint dims
, GLenum target
, GLint level
,
1033 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1034 GLint width
, GLint height
, GLint depth
,
1035 GLenum format
, GLenum type
, const void *pixels
,
1036 const struct gl_pixelstore_attrib
*packing
,
1037 struct gl_texture_object
*texObj
,
1038 struct gl_texture_image
*texImage
)
1040 struct st_context
*st
= st_context(ctx
);
1041 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1042 GLuint dstRowStride
;
1043 const GLuint srcImageStride
=
1044 _mesa_image_image_stride(packing
, width
, height
, format
, type
);
1047 /* init to silence warning only: */
1048 enum pipe_transfer_usage transfer_usage
= PIPE_TRANSFER_WRITE
;
1050 DBG("%s target %s level %d offset %d,%d %dx%d\n", __FUNCTION__
,
1051 _mesa_lookup_enum_by_nr(target
),
1052 level
, xoffset
, yoffset
, width
, height
);
1055 _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
, format
,
1056 type
, pixels
, packing
, "glTexSubImage2D");
1060 /* for a 1D array upload the image as a series of layer with height = 1 */
1061 if (target
== GL_TEXTURE_1D_ARRAY
) {
1066 /* Map buffer if necessary. Need to lock to prevent other contexts
1067 * from uploading the buffer under us.
1070 if (format
== GL_DEPTH_COMPONENT
&&
1071 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1072 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1074 transfer_usage
= PIPE_TRANSFER_WRITE
;
1076 texImage
->Data
= st_texture_image_map(st
, stImage
, zoffset
,
1082 if (!texImage
->Data
) {
1083 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1087 src
= (const GLubyte
*) pixels
;
1088 dstRowStride
= stImage
->transfer
->stride
;
1090 for (i
= 0; i
< depth
; i
++) {
1091 if (!_mesa_texstore(ctx
, dims
, texImage
->_BaseFormat
,
1092 texImage
->TexFormat
,
1095 (GLubyte
**) &texImage
->Data
,
1097 format
, type
, src
, packing
)) {
1098 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1101 if (stImage
->pt
&& i
+ 1 < depth
) {
1102 /* unmap this slice */
1103 st_texture_image_unmap(st
, stImage
);
1104 /* map next slice of 3D texture */
1105 texImage
->Data
= st_texture_image_map(st
, stImage
,
1110 src
+= srcImageStride
;
1115 _mesa_unmap_teximage_pbo(ctx
, packing
);
1117 if (stImage
->pt
&& texImage
->Data
) {
1118 st_texture_image_unmap(st
, stImage
);
1119 texImage
->Data
= NULL
;
1126 st_TexSubImage3D(struct gl_context
*ctx
, GLenum target
, GLint level
,
1127 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1128 GLsizei width
, GLsizei height
, GLsizei depth
,
1129 GLenum format
, GLenum type
, const GLvoid
*pixels
,
1130 const struct gl_pixelstore_attrib
*packing
,
1131 struct gl_texture_object
*texObj
,
1132 struct gl_texture_image
*texImage
)
1134 st_TexSubimage(ctx
, 3, target
, level
, xoffset
, yoffset
, zoffset
,
1135 width
, height
, depth
, format
, type
,
1136 pixels
, packing
, texObj
, texImage
);
1141 st_TexSubImage2D(struct gl_context
*ctx
, GLenum target
, GLint level
,
1142 GLint xoffset
, GLint yoffset
,
1143 GLsizei width
, GLsizei height
,
1144 GLenum format
, GLenum type
, const GLvoid
* pixels
,
1145 const struct gl_pixelstore_attrib
*packing
,
1146 struct gl_texture_object
*texObj
,
1147 struct gl_texture_image
*texImage
)
1149 st_TexSubimage(ctx
, 2, target
, level
, xoffset
, yoffset
, 0,
1150 width
, height
, 1, format
, type
,
1151 pixels
, packing
, texObj
, texImage
);
1156 st_TexSubImage1D(struct gl_context
*ctx
, GLenum target
, GLint level
,
1157 GLint xoffset
, GLsizei width
, GLenum format
, GLenum type
,
1158 const GLvoid
* pixels
,
1159 const struct gl_pixelstore_attrib
*packing
,
1160 struct gl_texture_object
*texObj
,
1161 struct gl_texture_image
*texImage
)
1163 st_TexSubimage(ctx
, 1, target
, level
, xoffset
, 0, 0, width
, 1, 1,
1164 format
, type
, pixels
, packing
, texObj
, texImage
);
1169 st_CompressedTexSubImage1D(struct gl_context
*ctx
, GLenum target
, GLint level
,
1170 GLint xoffset
, GLsizei width
,
1172 GLsizei imageSize
, const GLvoid
*data
,
1173 struct gl_texture_object
*texObj
,
1174 struct gl_texture_image
*texImage
)
1181 st_CompressedTexSubImage2D(struct gl_context
*ctx
, GLenum target
, GLint level
,
1182 GLint xoffset
, GLint yoffset
,
1183 GLsizei width
, GLint height
,
1185 GLsizei imageSize
, const GLvoid
*data
,
1186 struct gl_texture_object
*texObj
,
1187 struct gl_texture_image
*texImage
)
1189 struct st_context
*st
= st_context(ctx
);
1190 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1194 enum pipe_format pformat
;
1197 pformat
= stImage
->pt
->format
;
1199 texImage
->Data
= st_texture_image_map(st
, stImage
, 0,
1200 PIPE_TRANSFER_WRITE
,
1204 srcBlockStride
= util_format_get_stride(pformat
, width
);
1205 dstBlockStride
= stImage
->transfer
->stride
;
1207 assert(stImage
->pt
);
1208 /* TODO find good values for block and strides */
1209 /* TODO also adjust texImage->data for yoffset/xoffset */
1213 if (!texImage
->Data
) {
1214 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCompressedTexSubImage");
1218 assert(xoffset
% util_format_get_blockwidth(pformat
) == 0);
1219 assert(yoffset
% util_format_get_blockheight(pformat
) == 0);
1221 for (y
= 0; y
< height
; y
+= util_format_get_blockheight(pformat
)) {
1222 /* don't need to adjust for xoffset and yoffset as st_texture_image_map does that */
1223 const char *src
= (const char*)data
+ srcBlockStride
* util_format_get_nblocksy(pformat
, y
);
1224 char *dst
= (char*)texImage
->Data
+ dstBlockStride
* util_format_get_nblocksy(pformat
, y
);
1225 memcpy(dst
, src
, util_format_get_stride(pformat
, width
));
1229 st_texture_image_unmap(st
, stImage
);
1230 texImage
->Data
= NULL
;
1236 st_CompressedTexSubImage3D(struct gl_context
*ctx
, GLenum target
, GLint level
,
1237 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1238 GLsizei width
, GLint height
, GLint depth
,
1240 GLsizei imageSize
, const GLvoid
*data
,
1241 struct gl_texture_object
*texObj
,
1242 struct gl_texture_image
*texImage
)
1250 * Do a CopyTexSubImage operation using a read transfer from the source,
1251 * a write transfer to the destination and get_tile()/put_tile() to access
1252 * the pixels/texels.
1254 * Note: srcY=0=TOP of renderbuffer
1257 fallback_copy_texsubimage(struct gl_context
*ctx
, GLenum target
, GLint level
,
1258 struct st_renderbuffer
*strb
,
1259 struct st_texture_image
*stImage
,
1261 GLint destX
, GLint destY
, GLint destZ
,
1262 GLint srcX
, GLint srcY
,
1263 GLsizei width
, GLsizei height
)
1265 struct st_context
*st
= st_context(ctx
);
1266 struct pipe_context
*pipe
= st
->pipe
;
1267 struct pipe_transfer
*src_trans
;
1269 enum pipe_transfer_usage transfer_usage
;
1271 if (ST_DEBUG
& DEBUG_FALLBACK
)
1272 debug_printf("%s: fallback processing\n", __FUNCTION__
);
1274 assert(width
<= MAX_WIDTH
);
1276 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1277 srcY
= strb
->Base
.Height
- srcY
- height
;
1280 src_trans
= pipe_get_transfer(pipe
,
1283 strb
->rtt_face
+ strb
->rtt_slice
,
1288 if ((baseFormat
== GL_DEPTH_COMPONENT
||
1289 baseFormat
== GL_DEPTH_STENCIL
) &&
1290 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1291 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1293 transfer_usage
= PIPE_TRANSFER_WRITE
;
1295 /* XXX this used to ignore destZ param */
1296 texDest
= st_texture_image_map(st
, stImage
, destZ
, transfer_usage
,
1297 destX
, destY
, width
, height
);
1299 if (baseFormat
== GL_DEPTH_COMPONENT
||
1300 baseFormat
== GL_DEPTH_STENCIL
) {
1301 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1302 ctx
->Pixel
.DepthBias
!= 0.0F
);
1305 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1306 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1315 /* To avoid a large temp memory allocation, do copy row by row */
1316 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1317 uint data
[MAX_WIDTH
];
1318 pipe_get_tile_z(pipe
, src_trans
, 0, srcY
, width
, 1, data
);
1320 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1322 pipe_put_tile_z(pipe
, stImage
->transfer
, 0, row
, width
, 1, data
);
1328 (GLfloat
*) malloc(width
* height
* 4 * sizeof(GLfloat
));
1330 if (tempSrc
&& texDest
) {
1331 const GLint dims
= 2;
1332 const GLint dstRowStride
= stImage
->transfer
->stride
;
1333 struct gl_texture_image
*texImage
= &stImage
->base
;
1334 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1336 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1337 unpack
.Invert
= GL_TRUE
;
1340 /* get float/RGBA image from framebuffer */
1341 /* XXX this usually involves a lot of int/float conversion.
1342 * try to avoid that someday.
1344 pipe_get_tile_rgba_format(pipe
, src_trans
, 0, 0, width
, height
,
1345 util_format_linear(strb
->texture
->format
),
1348 /* Store into texture memory.
1349 * Note that this does some special things such as pixel transfer
1350 * ops and format conversion. In particular, if the dest tex format
1351 * is actually RGBA but the user created the texture as GL_RGB we
1352 * need to fill-in/override the alpha channel with 1.0.
1354 _mesa_texstore(ctx
, dims
,
1355 texImage
->_BaseFormat
,
1356 texImage
->TexFormat
,
1359 (GLubyte
**) &texDest
,
1361 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1365 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1372 st_texture_image_unmap(st
, stImage
);
1373 pipe
->transfer_destroy(pipe
, src_trans
);
1379 * If the format of the src renderbuffer and the format of the dest
1380 * texture are compatible (in terms of blitting), return a TGSI writemask
1381 * to be used during the blit.
1382 * If the src/dest are incompatible, return 0.
1385 compatible_src_dst_formats(struct gl_context
*ctx
,
1386 const struct gl_renderbuffer
*src
,
1387 const struct gl_texture_image
*dst
)
1389 /* Get logical base formats for the src and dest.
1390 * That is, use the user-requested formats and not the actual, device-
1392 * For example, the user may have requested an A8 texture but the
1393 * driver may actually be using an RGBA texture format. When we
1394 * copy/blit to that texture, we only want to copy the Alpha channel
1395 * and not the RGB channels.
1397 * Similarly, when the src FBO was created an RGB format may have been
1398 * requested but the driver actually chose an RGBA format. In that case,
1399 * we don't want to copy the undefined Alpha channel to the dest texture
1400 * (it should be 1.0).
1402 const GLenum srcFormat
= _mesa_base_fbo_format(ctx
, src
->InternalFormat
);
1403 const GLenum dstFormat
= _mesa_base_tex_format(ctx
, dst
->InternalFormat
);
1406 * XXX when we have red-only and red/green renderbuffers we'll need
1407 * to add more cases here (or implement a general-purpose routine that
1408 * queries the existance of the R,G,B,A channels in the src and dest).
1410 if (srcFormat
== dstFormat
) {
1411 /* This is the same as matching_base_formats, which should
1412 * always pass, as it did previously.
1414 return TGSI_WRITEMASK_XYZW
;
1416 else if (srcFormat
== GL_RGB
&& dstFormat
== GL_RGBA
) {
1417 /* Make sure that A in the dest is 1. The actual src format
1418 * may be RGBA and have undefined A values.
1420 return TGSI_WRITEMASK_XYZ
;
1422 else if (srcFormat
== GL_RGBA
&& dstFormat
== GL_RGB
) {
1423 /* Make sure that A in the dest is 1. The actual dst format
1424 * may be RGBA and will need A=1 to provide proper alpha values
1425 * when sampled later.
1427 return TGSI_WRITEMASK_XYZ
;
1430 if (ST_DEBUG
& DEBUG_FALLBACK
)
1431 debug_printf("%s failed for src %s, dst %s\n",
1433 _mesa_lookup_enum_by_nr(srcFormat
),
1434 _mesa_lookup_enum_by_nr(dstFormat
));
1445 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1446 * Note that the region to copy has already been clipped so we know we
1447 * won't read from outside the source renderbuffer's bounds.
1449 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1452 st_copy_texsubimage(struct gl_context
*ctx
,
1453 GLenum target
, GLint level
,
1454 GLint destX
, GLint destY
, GLint destZ
,
1455 GLint srcX
, GLint srcY
,
1456 GLsizei width
, GLsizei height
)
1458 struct gl_texture_unit
*texUnit
=
1459 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1460 struct gl_texture_object
*texObj
=
1461 _mesa_select_tex_object(ctx
, texUnit
, target
);
1462 struct gl_texture_image
*texImage
=
1463 _mesa_select_tex_image(ctx
, texObj
, target
, level
);
1464 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1465 const GLenum texBaseFormat
= texImage
->_BaseFormat
;
1466 struct gl_framebuffer
*fb
= ctx
->ReadBuffer
;
1467 struct st_renderbuffer
*strb
;
1468 struct st_context
*st
= st_context(ctx
);
1469 struct pipe_context
*pipe
= st
->pipe
;
1470 struct pipe_screen
*screen
= pipe
->screen
;
1471 enum pipe_format dest_format
, src_format
;
1472 GLboolean use_fallback
= GL_TRUE
;
1473 GLboolean matching_base_formats
;
1474 GLuint format_writemask
, sample_count
;
1475 struct pipe_surface
*dest_surface
= NULL
;
1476 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1478 /* make sure finalize_textures has been called?
1480 if (0) st_validate_state(st
);
1482 /* determine if copying depth or color data */
1483 if (texBaseFormat
== GL_DEPTH_COMPONENT
||
1484 texBaseFormat
== GL_DEPTH_STENCIL
) {
1485 strb
= st_renderbuffer(fb
->_DepthBuffer
);
1486 if (strb
->Base
.Wrapped
) {
1487 strb
= st_renderbuffer(strb
->Base
.Wrapped
);
1491 /* texBaseFormat == GL_RGB, GL_RGBA, GL_ALPHA, etc */
1492 strb
= st_renderbuffer(fb
->_ColorReadBuffer
);
1495 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1496 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1500 sample_count
= strb
->surface
->texture
->nr_samples
;
1501 /* I believe this would be legal, presumably would need to do a resolve
1502 for color, and for depth/stencil spec says to just use one of the
1503 depth/stencil samples per pixel? Need some transfer clarifications. */
1504 assert(sample_count
< 2);
1507 assert(strb
->surface
);
1508 assert(stImage
->pt
);
1510 src_format
= strb
->surface
->format
;
1511 dest_format
= stImage
->pt
->format
;
1514 * Determine if the src framebuffer and dest texture have the same
1515 * base format. We need this to detect a case such as the framebuffer
1516 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1517 * texture format stores RGBA we need to set A=1 (overriding the
1518 * framebuffer's alpha values). We can't do that with the blit or
1519 * textured-quad paths.
1521 matching_base_formats
=
1522 (_mesa_get_format_base_format(strb
->Base
.Format
) ==
1523 _mesa_get_format_base_format(texImage
->TexFormat
));
1524 format_writemask
= compatible_src_dst_formats(ctx
, &strb
->Base
, texImage
);
1526 if (ctx
->_ImageTransferState
== 0x0) {
1528 if (matching_base_formats
&&
1529 src_format
== dest_format
&&
1532 /* use surface_copy() / blit */
1533 struct pipe_box src_box
;
1534 u_box_2d_zslice(srcX
, srcY
, strb
->surface
->u
.tex
.first_layer
,
1535 width
, height
, &src_box
);
1537 /* for resource_copy_region(), y=0=top, always */
1538 pipe
->resource_copy_region(pipe
,
1541 stImage
->base
.Level
,
1542 destX
, destY
, destZ
+ stImage
->base
.Face
,
1545 strb
->surface
->u
.tex
.level
,
1547 use_fallback
= GL_FALSE
;
1549 else if (format_writemask
&&
1550 texBaseFormat
!= GL_DEPTH_COMPONENT
&&
1551 texBaseFormat
!= GL_DEPTH_STENCIL
&&
1552 screen
->is_format_supported(screen
, src_format
,
1553 PIPE_TEXTURE_2D
, sample_count
,
1554 PIPE_BIND_SAMPLER_VIEW
) &&
1555 screen
->is_format_supported(screen
, dest_format
,
1557 PIPE_BIND_RENDER_TARGET
)) {
1558 /* draw textured quad to do the copy */
1560 struct pipe_surface surf_tmpl
;
1561 memset(&surf_tmpl
, 0, sizeof(surf_tmpl
));
1562 surf_tmpl
.format
= util_format_linear(stImage
->pt
->format
);
1563 surf_tmpl
.usage
= PIPE_BIND_RENDER_TARGET
;
1564 surf_tmpl
.u
.tex
.level
= stImage
->base
.Level
;
1565 surf_tmpl
.u
.tex
.first_layer
= stImage
->base
.Face
+ destZ
;
1566 surf_tmpl
.u
.tex
.last_layer
= stImage
->base
.Face
+ destZ
;
1568 dest_surface
= pipe
->create_surface(pipe
, stImage
->pt
,
1572 srcY1
= strb
->Base
.Height
- srcY
- height
;
1573 srcY0
= srcY1
+ height
;
1577 srcY1
= srcY0
+ height
;
1580 /* Disable conditional rendering. */
1581 if (st
->render_condition
) {
1582 pipe
->render_condition(pipe
, NULL
, 0);
1585 util_blit_pixels_writemask(st
->blit
,
1587 strb
->surface
->u
.tex
.level
,
1589 srcX
+ width
, srcY1
,
1590 strb
->surface
->u
.tex
.first_layer
,
1593 destX
+ width
, destY
+ height
,
1594 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1597 /* Restore conditional rendering state. */
1598 if (st
->render_condition
) {
1599 pipe
->render_condition(pipe
, st
->render_condition
,
1600 st
->condition_mode
);
1603 use_fallback
= GL_FALSE
;
1607 pipe_surface_reference(&dest_surface
, NULL
);
1611 /* software fallback */
1612 fallback_copy_texsubimage(ctx
, target
, level
,
1613 strb
, stImage
, texBaseFormat
,
1614 destX
, destY
, destZ
,
1615 srcX
, srcY
, width
, height
);
1622 st_CopyTexSubImage1D(struct gl_context
* ctx
, GLenum target
, GLint level
,
1623 GLint xoffset
, GLint x
, GLint y
, GLsizei width
)
1625 const GLint yoffset
= 0, zoffset
= 0;
1626 const GLsizei height
= 1;
1627 st_copy_texsubimage(ctx
, target
, level
,
1628 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1629 x
, y
, width
, height
); /* src X, Y, size */
1634 st_CopyTexSubImage2D(struct gl_context
* ctx
, GLenum target
, GLint level
,
1635 GLint xoffset
, GLint yoffset
,
1636 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1638 const GLint zoffset
= 0;
1639 st_copy_texsubimage(ctx
, target
, level
,
1640 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1641 x
, y
, width
, height
); /* src X, Y, size */
1646 st_CopyTexSubImage3D(struct gl_context
* ctx
, GLenum target
, GLint level
,
1647 GLint xoffset
, GLint yoffset
, GLint zoffset
,
1648 GLint x
, GLint y
, GLsizei width
, GLsizei height
)
1650 st_copy_texsubimage(ctx
, target
, level
,
1651 xoffset
, yoffset
, zoffset
, /* destX,Y,Z */
1652 x
, y
, width
, height
); /* src X, Y, size */
1657 * Copy image data from stImage into the texture object 'stObj' at level
1661 copy_image_data_to_texture(struct st_context
*st
,
1662 struct st_texture_object
*stObj
,
1664 struct st_texture_image
*stImage
)
1668 const struct gl_texture_image
*dstImage
=
1669 stObj
->base
.Image
[stImage
->base
.Face
][dstLevel
];
1671 assert(dstImage
->Width
== stImage
->base
.Width
);
1672 assert(dstImage
->Height
== stImage
->base
.Height
);
1673 assert(dstImage
->Depth
== stImage
->base
.Depth
);
1677 /* Copy potentially with the blitter:
1679 st_texture_image_copy(st
->pipe
,
1680 stObj
->pt
, dstLevel
, /* dest texture, level */
1681 stImage
->pt
, stImage
->base
.Level
, /* src texture, level */
1682 stImage
->base
.Face
);
1684 pipe_resource_reference(&stImage
->pt
, NULL
);
1686 else if (stImage
->base
.Data
) {
1687 st_texture_image_data(st
,
1692 stImage
->base
.RowStride
*
1693 util_format_get_blocksize(stObj
->pt
->format
),
1694 stImage
->base
.RowStride
*
1695 stImage
->base
.Height
*
1696 util_format_get_blocksize(stObj
->pt
->format
));
1697 _mesa_align_free(stImage
->base
.Data
);
1698 stImage
->base
.Data
= NULL
;
1701 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1706 * Called during state validation. When this function is finished,
1707 * the texture object should be ready for rendering.
1708 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1711 st_finalize_texture(struct gl_context
*ctx
,
1712 struct pipe_context
*pipe
,
1713 struct gl_texture_object
*tObj
)
1715 struct st_context
*st
= st_context(ctx
);
1716 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1717 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1719 struct st_texture_image
*firstImage
;
1720 enum pipe_format firstImageFormat
;
1721 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
1723 if (stObj
->base
._Complete
) {
1724 /* The texture is complete and we know exactly how many mipmap levels
1725 * are present/needed. This is conditional because we may be called
1726 * from the st_generate_mipmap() function when the texture object is
1727 * incomplete. In that case, we'll have set stObj->lastLevel before
1730 if (stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
1731 stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
)
1732 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1734 stObj
->lastLevel
= stObj
->base
._MaxLevel
;
1737 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1740 /* If both firstImage and stObj point to a texture which can contain
1741 * all active images, favour firstImage. Note that because of the
1742 * completeness requirement, we know that the image dimensions
1745 if (firstImage
->pt
&&
1746 firstImage
->pt
!= stObj
->pt
&&
1747 (!stObj
->pt
|| firstImage
->pt
->last_level
>= stObj
->pt
->last_level
)) {
1748 pipe_resource_reference(&stObj
->pt
, firstImage
->pt
);
1749 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
1752 /* Find gallium format for the Mesa texture */
1753 firstImageFormat
= st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1755 /* Find size of level=0 Gallium mipmap image, plus number of texture layers */
1757 GLuint width
, height
, depth
;
1758 if (!guess_base_level_size(stObj
->base
.Target
,
1759 firstImage
->base
.Width2
,
1760 firstImage
->base
.Height2
,
1761 firstImage
->base
.Depth2
,
1762 firstImage
->base
.Level
,
1763 &width
, &height
, &depth
)) {
1764 width
= stObj
->width0
;
1765 height
= stObj
->height0
;
1766 depth
= stObj
->depth0
;
1768 /* convert GL dims to Gallium dims */
1769 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
, width
, height
, depth
,
1770 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1773 /* If we already have a gallium texture, check that it matches the texture
1774 * object's format, target, size, num_levels, etc.
1777 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1778 !st_sampler_compat_formats(stObj
->pt
->format
, firstImageFormat
) ||
1779 stObj
->pt
->last_level
< stObj
->lastLevel
||
1780 stObj
->pt
->width0
!= ptWidth
||
1781 stObj
->pt
->height0
!= ptHeight
||
1782 stObj
->pt
->depth0
!= ptDepth
||
1783 stObj
->pt
->array_size
!= ptLayers
)
1785 /* The gallium texture does not match the Mesa texture so delete the
1786 * gallium texture now. We'll make a new one below.
1788 pipe_resource_reference(&stObj
->pt
, NULL
);
1789 pipe_sampler_view_reference(&stObj
->sampler_view
, NULL
);
1790 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1794 /* May need to create a new gallium texture:
1797 GLuint bindings
= default_bindings(st
, firstImageFormat
);
1799 stObj
->pt
= st_texture_create(st
,
1800 gl_target_to_pipe(stObj
->base
.Target
),
1810 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1815 /* Pull in any images not in the object's texture:
1817 for (face
= 0; face
< nr_faces
; face
++) {
1819 for (level
= stObj
->base
.BaseLevel
; level
<= stObj
->lastLevel
; level
++) {
1820 struct st_texture_image
*stImage
=
1821 st_texture_image(stObj
->base
.Image
[face
][level
]);
1823 /* Need to import images in main memory or held in other textures.
1825 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1827 (stImage
->base
.Width
== u_minify(stObj
->width0
, level
) &&
1828 stImage
->base
.Height
== u_minify(stObj
->height0
, level
) &&
1829 stImage
->base
.Depth
== u_minify(stObj
->depth0
, level
))) {
1830 /* src image fits expected dest mipmap level size */
1831 copy_image_data_to_texture(st
, stObj
, level
, stImage
);
1842 * Returns pointer to a default/dummy texture.
1843 * This is typically used when the current shader has tex/sample instructions
1844 * but the user has not provided a (any) texture(s).
1846 struct gl_texture_object
*
1847 st_get_default_texture(struct st_context
*st
)
1849 if (!st
->default_texture
) {
1850 static const GLenum target
= GL_TEXTURE_2D
;
1851 GLubyte pixels
[16][16][4];
1852 struct gl_texture_object
*texObj
;
1853 struct gl_texture_image
*texImg
;
1856 /* The ARB_fragment_program spec says (0,0,0,1) should be returned
1857 * when attempting to sample incomplete textures.
1859 for (i
= 0; i
< 16; i
++) {
1860 for (j
= 0; j
< 16; j
++) {
1861 pixels
[i
][j
][0] = 0;
1862 pixels
[i
][j
][1] = 0;
1863 pixels
[i
][j
][2] = 0;
1864 pixels
[i
][j
][3] = 255;
1868 texObj
= st
->ctx
->Driver
.NewTextureObject(st
->ctx
, 0, target
);
1870 texImg
= _mesa_get_tex_image(st
->ctx
, texObj
, target
, 0);
1872 _mesa_init_teximage_fields(st
->ctx
, target
, texImg
,
1873 16, 16, 1, 0, /* w, h, d, border */
1874 GL_RGBA
, MESA_FORMAT_RGBA8888
);
1876 st_TexImage(st
->ctx
, 2, target
,
1877 0, GL_RGBA
, /* level, intformat */
1878 16, 16, 1, 0, /* w, h, d, border */
1879 GL_RGBA
, GL_UNSIGNED_BYTE
, pixels
,
1880 &st
->ctx
->DefaultPacking
,
1884 texObj
->Sampler
.MinFilter
= GL_NEAREST
;
1885 texObj
->Sampler
.MagFilter
= GL_NEAREST
;
1886 texObj
->_Complete
= GL_TRUE
;
1888 st
->default_texture
= texObj
;
1890 return st
->default_texture
;
1895 st_init_texture_functions(struct dd_function_table
*functions
)
1897 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1898 functions
->TexImage1D
= st_TexImage1D
;
1899 functions
->TexImage2D
= st_TexImage2D
;
1900 functions
->TexImage3D
= st_TexImage3D
;
1901 functions
->TexSubImage1D
= st_TexSubImage1D
;
1902 functions
->TexSubImage2D
= st_TexSubImage2D
;
1903 functions
->TexSubImage3D
= st_TexSubImage3D
;
1904 functions
->CompressedTexSubImage1D
= st_CompressedTexSubImage1D
;
1905 functions
->CompressedTexSubImage2D
= st_CompressedTexSubImage2D
;
1906 functions
->CompressedTexSubImage3D
= st_CompressedTexSubImage3D
;
1907 functions
->CopyTexSubImage1D
= st_CopyTexSubImage1D
;
1908 functions
->CopyTexSubImage2D
= st_CopyTexSubImage2D
;
1909 functions
->CopyTexSubImage3D
= st_CopyTexSubImage3D
;
1910 functions
->GenerateMipmap
= st_generate_mipmap
;
1912 functions
->GetTexImage
= st_GetTexImage
;
1914 /* compressed texture functions */
1915 functions
->CompressedTexImage2D
= st_CompressedTexImage2D
;
1916 functions
->GetCompressedTexImage
= _mesa_get_compressed_teximage
;
1918 functions
->NewTextureObject
= st_NewTextureObject
;
1919 functions
->NewTextureImage
= st_NewTextureImage
;
1920 functions
->DeleteTextureImage
= st_DeleteTextureImage
;
1921 functions
->DeleteTexture
= st_DeleteTextureObject
;
1922 functions
->AllocTextureImageBuffer
= st_AllocTextureImageBuffer
;
1923 functions
->FreeTextureImageBuffer
= st_FreeTextureImageBuffer
;
1924 functions
->MapTextureImage
= st_MapTextureImage
;
1925 functions
->UnmapTextureImage
= st_UnmapTextureImage
;
1927 functions
->TextureMemCpy
= do_memcpy
;
1929 /* XXX Temporary until we can query pipe's texture sizes */
1930 functions
->TestProxyTexImage
= _mesa_test_proxy_teximage
;