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_cb_bufferobjects.h"
52 #include "state_tracker/st_format.h"
53 #include "state_tracker/st_texture.h"
54 #include "state_tracker/st_gen_mipmap.h"
55 #include "state_tracker/st_atom.h"
57 #include "pipe/p_context.h"
58 #include "pipe/p_defines.h"
59 #include "util/u_inlines.h"
60 #include "pipe/p_shader_tokens.h"
61 #include "util/u_tile.h"
62 #include "util/u_blit.h"
63 #include "util/u_format.h"
64 #include "util/u_surface.h"
65 #include "util/u_sampler.h"
66 #include "util/u_math.h"
67 #include "util/u_box.h"
69 #define DBG if (0) printf
72 static enum pipe_texture_target
73 gl_target_to_pipe(GLenum target
)
77 case GL_PROXY_TEXTURE_1D
:
78 return PIPE_TEXTURE_1D
;
80 case GL_PROXY_TEXTURE_2D
:
81 case GL_TEXTURE_EXTERNAL_OES
:
82 return PIPE_TEXTURE_2D
;
83 case GL_TEXTURE_RECTANGLE_NV
:
84 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
85 return PIPE_TEXTURE_RECT
;
87 case GL_PROXY_TEXTURE_3D
:
88 return PIPE_TEXTURE_3D
;
89 case GL_TEXTURE_CUBE_MAP_ARB
:
90 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
91 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
92 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
93 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
94 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
95 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
96 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
97 return PIPE_TEXTURE_CUBE
;
98 case GL_TEXTURE_1D_ARRAY_EXT
:
99 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
100 return PIPE_TEXTURE_1D_ARRAY
;
101 case GL_TEXTURE_2D_ARRAY_EXT
:
102 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
103 return PIPE_TEXTURE_2D_ARRAY
;
104 case GL_TEXTURE_BUFFER
:
106 case GL_TEXTURE_CUBE_MAP_ARRAY
:
107 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
108 return PIPE_TEXTURE_CUBE_ARRAY
;
116 /** called via ctx->Driver.NewTextureImage() */
117 static struct gl_texture_image
*
118 st_NewTextureImage(struct gl_context
* ctx
)
120 DBG("%s\n", __FUNCTION__
);
122 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
126 /** called via ctx->Driver.DeleteTextureImage() */
128 st_DeleteTextureImage(struct gl_context
* ctx
, struct gl_texture_image
*img
)
130 /* nothing special (yet) for st_texture_image */
131 _mesa_delete_texture_image(ctx
, img
);
135 /** called via ctx->Driver.NewTextureObject() */
136 static struct gl_texture_object
*
137 st_NewTextureObject(struct gl_context
* ctx
, GLuint name
, GLenum target
)
139 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
141 DBG("%s\n", __FUNCTION__
);
142 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
147 /** called via ctx->Driver.DeleteTextureObject() */
149 st_DeleteTextureObject(struct gl_context
*ctx
,
150 struct gl_texture_object
*texObj
)
152 struct st_context
*st
= st_context(ctx
);
153 struct st_texture_object
*stObj
= st_texture_object(texObj
);
155 pipe_resource_reference(&stObj
->pt
, NULL
);
156 if (stObj
->sampler_view
) {
157 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
159 _mesa_delete_texture_object(ctx
, texObj
);
163 /** called via ctx->Driver.FreeTextureImageBuffer() */
165 st_FreeTextureImageBuffer(struct gl_context
*ctx
,
166 struct gl_texture_image
*texImage
)
168 struct st_texture_image
*stImage
= st_texture_image(texImage
);
170 DBG("%s\n", __FUNCTION__
);
173 pipe_resource_reference(&stImage
->pt
, NULL
);
176 if (stImage
->TexData
) {
177 _mesa_align_free(stImage
->TexData
);
178 stImage
->TexData
= NULL
;
183 /** called via ctx->Driver.MapTextureImage() */
185 st_MapTextureImage(struct gl_context
*ctx
,
186 struct gl_texture_image
*texImage
,
187 GLuint slice
, GLuint x
, GLuint y
, GLuint w
, GLuint h
,
189 GLubyte
**mapOut
, GLint
*rowStrideOut
)
191 struct st_context
*st
= st_context(ctx
);
192 struct st_texture_image
*stImage
= st_texture_image(texImage
);
197 if (mode
& GL_MAP_READ_BIT
)
198 pipeMode
|= PIPE_TRANSFER_READ
;
199 if (mode
& GL_MAP_WRITE_BIT
)
200 pipeMode
|= PIPE_TRANSFER_WRITE
;
201 if (mode
& GL_MAP_INVALIDATE_RANGE_BIT
)
202 pipeMode
|= PIPE_TRANSFER_DISCARD_RANGE
;
204 map
= st_texture_image_map(st
, stImage
, pipeMode
, x
, y
, slice
, w
, h
, 1);
207 *rowStrideOut
= stImage
->transfer
->stride
;
216 /** called via ctx->Driver.UnmapTextureImage() */
218 st_UnmapTextureImage(struct gl_context
*ctx
,
219 struct gl_texture_image
*texImage
,
222 struct st_context
*st
= st_context(ctx
);
223 struct st_texture_image
*stImage
= st_texture_image(texImage
);
224 st_texture_image_unmap(st
, stImage
);
229 * Return default texture resource binding bitmask for the given format.
232 default_bindings(struct st_context
*st
, enum pipe_format format
)
234 struct pipe_screen
*screen
= st
->pipe
->screen
;
235 const unsigned target
= PIPE_TEXTURE_2D
;
238 if (util_format_is_depth_or_stencil(format
))
239 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_DEPTH_STENCIL
;
241 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_RENDER_TARGET
;
243 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
247 format
= util_format_linear(format
);
249 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
252 return PIPE_BIND_SAMPLER_VIEW
;
258 * Given the size of a mipmap image, try to compute the size of the level=0
261 * Note that this isn't always accurate for odd-sized, non-POW textures.
262 * For example, if level=1 and width=40 then the level=0 width may be 80 or 81.
264 * \return GL_TRUE for success, GL_FALSE for failure
267 guess_base_level_size(GLenum target
,
268 GLuint width
, GLuint height
, GLuint depth
, GLuint level
,
269 GLuint
*width0
, GLuint
*height0
, GLuint
*depth0
)
276 /* Guess the size of the base level.
277 * Depending on the image's size, we can't always make a guess here.
281 case GL_TEXTURE_1D_ARRAY
:
286 case GL_TEXTURE_2D_ARRAY
:
287 /* We can't make a good guess here, because the base level dimensions
290 if (width
== 1 || height
== 1) {
297 case GL_TEXTURE_CUBE_MAP
:
298 case GL_TEXTURE_CUBE_MAP_ARRAY
:
304 /* We can't make a good guess here, because the base level dimensions
307 if (width
== 1 || height
== 1 || depth
== 1) {
315 case GL_TEXTURE_RECTANGLE
:
332 * Try to allocate a pipe_resource object for the given st_texture_object.
334 * We use the given st_texture_image as a clue to determine the size of the
335 * mipmap image at level=0.
337 * \return GL_TRUE for success, GL_FALSE if out of memory.
340 guess_and_alloc_texture(struct st_context
*st
,
341 struct st_texture_object
*stObj
,
342 const struct st_texture_image
*stImage
)
344 GLuint lastLevel
, width
, height
, depth
;
346 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
347 enum pipe_format fmt
;
349 DBG("%s\n", __FUNCTION__
);
353 if (!guess_base_level_size(stObj
->base
.Target
,
354 stImage
->base
.Width2
,
355 stImage
->base
.Height2
,
356 stImage
->base
.Depth2
,
358 &width
, &height
, &depth
)) {
359 /* we can't determine the image size at level=0 */
360 stObj
->width0
= stObj
->height0
= stObj
->depth0
= 0;
361 /* this is not an out of memory error */
365 /* At this point, (width x height x depth) is the expected size of
366 * the level=0 mipmap image.
369 /* Guess a reasonable value for lastLevel. With OpenGL we have no
370 * idea how many mipmap levels will be in a texture until we start
371 * to render with it. Make an educated guess here but be prepared
372 * to re-allocating a texture buffer with space for more (or fewer)
373 * mipmap levels later.
375 if ((stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
||
376 stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
377 (stObj
->base
.BaseLevel
== 0 &&
378 stObj
->base
.MaxLevel
== 0) ||
379 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
380 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
381 !stObj
->base
.GenerateMipmap
&&
382 stImage
->base
.Level
== 0) {
383 /* only alloc space for a single mipmap level */
387 /* alloc space for a full mipmap */
388 lastLevel
= _mesa_get_tex_max_num_levels(stObj
->base
.Target
,
389 width
, height
, depth
) - 1;
392 /* Save the level=0 dimensions */
393 stObj
->width0
= width
;
394 stObj
->height0
= height
;
395 stObj
->depth0
= depth
;
397 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
);
399 bindings
= default_bindings(st
, fmt
);
401 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
402 width
, height
, depth
,
403 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
405 stObj
->pt
= st_texture_create(st
,
406 gl_target_to_pipe(stObj
->base
.Target
),
415 stObj
->lastLevel
= lastLevel
;
417 DBG("%s returning %d\n", __FUNCTION__
, (stObj
->pt
!= NULL
));
419 return stObj
->pt
!= NULL
;
424 * Called via ctx->Driver.AllocTextureImageBuffer().
425 * If the texture object/buffer already has space for the indicated image,
426 * we're done. Otherwise, allocate memory for the new texture image.
429 st_AllocTextureImageBuffer(struct gl_context
*ctx
,
430 struct gl_texture_image
*texImage
)
432 struct st_context
*st
= st_context(ctx
);
433 struct st_texture_image
*stImage
= st_texture_image(texImage
);
434 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
435 const GLuint level
= texImage
->Level
;
436 GLuint width
= texImage
->Width
;
437 GLuint height
= texImage
->Height
;
438 GLuint depth
= texImage
->Depth
;
440 DBG("%s\n", __FUNCTION__
);
442 assert(!stImage
->TexData
);
443 assert(!stImage
->pt
); /* xxx this might be wrong */
445 /* Look if the parent texture object has space for this image */
447 level
<= stObj
->pt
->last_level
&&
448 st_texture_match_image(stObj
->pt
, texImage
)) {
449 /* this image will fit in the existing texture object's memory */
450 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
454 /* The parent texture object does not have space for this image */
456 pipe_resource_reference(&stObj
->pt
, NULL
);
457 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
459 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
460 /* Probably out of memory.
461 * Try flushing any pending rendering, then retry.
464 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
465 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
471 st_texture_match_image(stObj
->pt
, texImage
)) {
472 /* The image will live in the object's mipmap memory */
473 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
478 /* Create a new, temporary texture/resource/buffer to hold this
479 * one texture image. Note that when we later access this image
480 * (either for mapping or copying) we'll want to always specify
481 * mipmap level=0, even if the image represents some other mipmap
484 enum pipe_format format
=
485 st_mesa_format_to_pipe_format(texImage
->TexFormat
);
486 GLuint bindings
= default_bindings(st
, format
);
487 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
489 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
490 width
, height
, depth
,
491 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
493 stImage
->pt
= st_texture_create(st
,
494 gl_target_to_pipe(stObj
->base
.Target
),
502 return stImage
->pt
!= NULL
;
508 * Preparation prior to glTexImage. Basically check the 'surface_based'
509 * field and switch to a "normal" tex image if necessary.
512 prep_teximage(struct gl_context
*ctx
, struct gl_texture_image
*texImage
,
513 GLenum format
, GLenum type
)
515 struct gl_texture_object
*texObj
= texImage
->TexObject
;
516 struct st_texture_object
*stObj
= st_texture_object(texObj
);
518 /* switch to "normal" */
519 if (stObj
->surface_based
) {
520 const GLenum target
= texObj
->Target
;
521 const GLuint level
= texImage
->Level
;
524 _mesa_clear_texture_object(ctx
, texObj
);
525 pipe_resource_reference(&stObj
->pt
, NULL
);
527 /* oops, need to init this image again */
528 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
529 texImage
->InternalFormat
, format
,
532 _mesa_init_teximage_fields(ctx
, texImage
,
533 texImage
->Width
, texImage
->Height
,
534 texImage
->Depth
, texImage
->Border
,
535 texImage
->InternalFormat
, texFormat
);
537 stObj
->surface_based
= GL_FALSE
;
543 * Return a writemask for the gallium blit. The parameters can be base
544 * formats or "format" from glDrawPixels/glTexImage/glGetTexImage.
547 get_blit_mask(GLenum srcFormat
, GLenum dstFormat
)
550 case GL_DEPTH_STENCIL
:
552 case GL_DEPTH_STENCIL
:
554 case GL_DEPTH_COMPONENT
:
556 case GL_STENCIL_INDEX
:
563 case GL_DEPTH_COMPONENT
:
565 case GL_DEPTH_STENCIL
:
566 case GL_DEPTH_COMPONENT
:
573 case GL_STENCIL_INDEX
:
575 case GL_STENCIL_INDEX
:
583 return PIPE_MASK_RGBA
;
589 st_TexSubImage(struct gl_context
*ctx
, GLuint dims
,
590 struct gl_texture_image
*texImage
,
591 GLint xoffset
, GLint yoffset
, GLint zoffset
,
592 GLint width
, GLint height
, GLint depth
,
593 GLenum format
, GLenum type
, const void *pixels
,
594 const struct gl_pixelstore_attrib
*unpack
)
596 struct st_context
*st
= st_context(ctx
);
597 struct st_texture_image
*stImage
= st_texture_image(texImage
);
598 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
599 struct pipe_context
*pipe
= st
->pipe
;
600 struct pipe_screen
*screen
= pipe
->screen
;
601 struct pipe_resource
*dst
= stImage
->pt
;
602 struct pipe_resource
*src
= NULL
;
603 struct pipe_resource src_templ
;
604 struct pipe_transfer
*transfer
;
605 struct pipe_blit_info blit
;
606 enum pipe_format src_format
, dst_format
;
607 gl_format mesa_src_format
;
608 GLenum gl_target
= texImage
->TexObject
->Target
;
616 /* XXX Fallback for depth-stencil formats due to an incomplete stencil
617 * blit implementation in some drivers. */
618 if (format
== GL_DEPTH_STENCIL
) {
622 /* If the base internal format and the texture format don't match,
623 * we can't use blit-based TexSubImage. */
624 if (texImage
->_BaseFormat
!=
625 _mesa_get_format_base_format(texImage
->TexFormat
)) {
629 /* See if the texture format already matches the format and type,
630 * in which case the memcpy-based fast path will likely be used and
631 * we don't have to blit. */
632 if (_mesa_format_matches_format_and_type(texImage
->TexFormat
, format
,
633 type
, unpack
->SwapBytes
)) {
637 if (format
== GL_DEPTH_COMPONENT
|| format
== GL_DEPTH_STENCIL
)
638 bind
= PIPE_BIND_DEPTH_STENCIL
;
640 bind
= PIPE_BIND_RENDER_TARGET
;
642 /* See if the destination format is supported.
643 * For luminance and intensity, only the red channel is stored there. */
644 dst_format
= util_format_linear(dst
->format
);
645 dst_format
= util_format_luminance_to_red(dst_format
);
646 dst_format
= util_format_intensity_to_red(dst_format
);
649 !screen
->is_format_supported(screen
, dst_format
, dst
->target
,
650 dst
->nr_samples
, bind
)) {
654 /* Choose the source format. */
655 src_format
= st_choose_matching_format(screen
, PIPE_BIND_SAMPLER_VIEW
,
656 format
, type
, unpack
->SwapBytes
);
661 mesa_src_format
= st_pipe_format_to_mesa_format(src_format
);
663 /* There is no reason to do this if we cannot use memcpy for the temporary
664 * source texture at least. This also takes transfer ops into account,
666 if (!_mesa_texstore_can_use_memcpy(ctx
,
667 _mesa_get_format_base_format(mesa_src_format
),
668 mesa_src_format
, format
, type
, unpack
)) {
672 /* TexSubImage only sets a single cubemap face. */
673 if (gl_target
== GL_TEXTURE_CUBE_MAP
) {
674 gl_target
= GL_TEXTURE_2D
;
677 /* Initialize the source texture description. */
678 memset(&src_templ
, 0, sizeof(src_templ
));
679 src_templ
.target
= gl_target_to_pipe(gl_target
);
680 src_templ
.format
= src_format
;
681 src_templ
.bind
= PIPE_BIND_SAMPLER_VIEW
;
682 src_templ
.usage
= PIPE_USAGE_STAGING
;
684 st_gl_texture_dims_to_pipe_dims(gl_target
, width
, height
, depth
,
685 &src_templ
.width0
, &src_templ
.height0
,
686 &src_templ
.depth0
, &src_templ
.array_size
);
688 /* Check for NPOT texture support. */
689 if (!screen
->get_param(screen
, PIPE_CAP_NPOT_TEXTURES
) &&
690 (!util_is_power_of_two(src_templ
.width0
) ||
691 !util_is_power_of_two(src_templ
.height0
) ||
692 !util_is_power_of_two(src_templ
.depth0
))) {
696 /* Create the source texture. */
697 src
= screen
->resource_create(screen
, &src_templ
);
702 /* Map source pixels. */
703 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
,
704 format
, type
, pixels
, unpack
,
707 /* This is a GL error. */
708 pipe_resource_reference(&src
, NULL
);
712 /* From now on, we need the gallium representation of dimensions. */
713 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
718 map
= pipe_transfer_map_3d(pipe
, src
, 0, PIPE_TRANSFER_WRITE
, 0, 0, 0,
719 width
, height
, depth
, &transfer
);
721 _mesa_unmap_teximage_pbo(ctx
, unpack
);
722 pipe_resource_reference(&src
, NULL
);
726 /* Upload pixels (just memcpy). */
728 const uint bytesPerRow
= width
* util_format_get_blocksize(src_format
);
731 for (slice
= 0; slice
< depth
; slice
++) {
732 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
733 /* 1D array textures.
734 * We need to convert gallium coords to GL coords.
736 GLvoid
*src
= _mesa_image_address3d(unpack
, pixels
,
737 width
, depth
, format
,
739 memcpy(map
, src
, bytesPerRow
);
742 ubyte
*slice_map
= map
;
744 for (row
= 0; row
< height
; row
++) {
745 GLvoid
*src
= _mesa_image_address3d(unpack
, pixels
,
746 width
, height
, format
,
747 type
, slice
, row
, 0);
748 memcpy(slice_map
, src
, bytesPerRow
);
749 slice_map
+= transfer
->stride
;
752 map
+= transfer
->layer_stride
;
756 pipe_transfer_unmap(pipe
, transfer
);
757 _mesa_unmap_teximage_pbo(ctx
, unpack
);
760 blit
.src
.resource
= src
;
762 blit
.src
.format
= src_format
;
763 blit
.dst
.resource
= dst
;
764 blit
.dst
.level
= stObj
->pt
!= stImage
->pt
? 0 : texImage
->Level
;
765 blit
.dst
.format
= dst_format
;
766 blit
.src
.box
.x
= blit
.src
.box
.y
= blit
.src
.box
.z
= 0;
767 blit
.dst
.box
.x
= xoffset
;
768 blit
.dst
.box
.y
= yoffset
;
769 blit
.dst
.box
.z
= zoffset
+ texImage
->Face
;
770 blit
.src
.box
.width
= blit
.dst
.box
.width
= width
;
771 blit
.src
.box
.height
= blit
.dst
.box
.height
= height
;
772 blit
.src
.box
.depth
= blit
.dst
.box
.depth
= depth
;
773 blit
.mask
= get_blit_mask(format
, texImage
->_BaseFormat
);
774 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
775 blit
.scissor_enable
= FALSE
;
777 st
->pipe
->blit(st
->pipe
, &blit
);
779 pipe_resource_reference(&src
, NULL
);
783 _mesa_store_texsubimage(ctx
, dims
, texImage
, xoffset
, yoffset
, zoffset
,
784 width
, height
, depth
, format
, type
, pixels
,
789 st_TexImage(struct gl_context
* ctx
, GLuint dims
,
790 struct gl_texture_image
*texImage
,
791 GLenum format
, GLenum type
, const void *pixels
,
792 const struct gl_pixelstore_attrib
*unpack
)
794 assert(dims
== 1 || dims
== 2 || dims
== 3);
796 prep_teximage(ctx
, texImage
, format
, type
);
798 if (texImage
->Width
== 0 || texImage
->Height
== 0 || texImage
->Depth
== 0)
801 /* allocate storage for texture data */
802 if (!ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
)) {
803 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
807 st_TexSubImage(ctx
, dims
, texImage
, 0, 0, 0,
808 texImage
->Width
, texImage
->Height
, texImage
->Depth
,
809 format
, type
, pixels
, unpack
);
814 st_CompressedTexImage(struct gl_context
*ctx
, GLuint dims
,
815 struct gl_texture_image
*texImage
,
816 GLsizei imageSize
, const GLvoid
*data
)
818 prep_teximage(ctx
, texImage
, GL_NONE
, GL_NONE
);
819 _mesa_store_compressed_teximage(ctx
, dims
, texImage
, imageSize
, data
);
826 * Called via ctx->Driver.GetTexImage()
828 * This uses a blit to copy the texture to a texture format which matches
829 * the format and type combo and then a fast read-back is done using memcpy.
830 * We can do arbitrary X/Y/Z/W/0/1 swizzling here as long as there is
831 * a format which matches the swizzling.
833 * If such a format isn't available, it falls back to _mesa_get_teximage.
835 * NOTE: Drivers usually do a blit to convert between tiled and linear
836 * texture layouts during texture uploads/downloads, so the blit
837 * we do here should be free in such cases.
840 st_GetTexImage(struct gl_context
* ctx
,
841 GLenum format
, GLenum type
, GLvoid
* pixels
,
842 struct gl_texture_image
*texImage
)
844 struct st_context
*st
= st_context(ctx
);
845 struct pipe_context
*pipe
= st
->pipe
;
846 struct pipe_screen
*screen
= pipe
->screen
;
847 GLuint width
= texImage
->Width
;
848 GLuint height
= texImage
->Height
;
849 GLuint depth
= texImage
->Depth
;
850 struct st_texture_image
*stImage
= st_texture_image(texImage
);
851 struct pipe_resource
*src
= st_texture_object(texImage
->TexObject
)->pt
;
852 struct pipe_resource
*dst
= NULL
;
853 struct pipe_resource dst_templ
;
854 enum pipe_format dst_format
, src_format
;
855 gl_format mesa_format
;
856 GLenum gl_target
= texImage
->TexObject
->Target
;
857 enum pipe_texture_target pipe_target
;
858 struct pipe_blit_info blit
;
859 unsigned bind
= PIPE_BIND_TRANSFER_READ
;
860 struct pipe_transfer
*tex_xfer
;
862 boolean done
= FALSE
;
868 /* XXX Fallback to _mesa_get_teximage for depth-stencil formats
869 * due to an incomplete stencil blit implementation in some drivers. */
870 if (format
== GL_DEPTH_STENCIL
) {
874 /* If the base internal format and the texture format don't match, we have
875 * to fall back to _mesa_get_teximage. */
876 if (texImage
->_BaseFormat
!=
877 _mesa_get_format_base_format(texImage
->TexFormat
)) {
881 /* See if the texture format already matches the format and type,
882 * in which case the memcpy-based fast path will be used. */
883 if (_mesa_format_matches_format_and_type(texImage
->TexFormat
, format
,
884 type
, ctx
->Pack
.SwapBytes
)) {
888 /* Convert the source format to what is expected by GetTexImage
889 * and see if it's supported.
891 * This only applies to glGetTexImage:
892 * - Luminance must be returned as (L,0,0,1).
893 * - Luminance alpha must be returned as (L,0,0,A).
894 * - Intensity must be returned as (I,0,0,1)
896 src_format
= util_format_linear(src
->format
);
897 src_format
= util_format_luminance_to_red(src_format
);
898 src_format
= util_format_intensity_to_red(src_format
);
901 !screen
->is_format_supported(screen
, src_format
, src
->target
,
903 PIPE_BIND_SAMPLER_VIEW
)) {
907 if (format
== GL_DEPTH_COMPONENT
|| format
== GL_DEPTH_STENCIL
)
908 bind
|= PIPE_BIND_DEPTH_STENCIL
;
910 bind
|= PIPE_BIND_RENDER_TARGET
;
912 /* GetTexImage only returns a single face for cubemaps. */
913 if (gl_target
== GL_TEXTURE_CUBE_MAP
) {
914 gl_target
= GL_TEXTURE_2D
;
916 pipe_target
= gl_target_to_pipe(gl_target
);
918 /* Choose the destination format by finding the best match
919 * for the format+type combo. */
920 dst_format
= st_choose_matching_format(screen
, bind
, format
, type
,
921 ctx
->Pack
.SwapBytes
);
923 if (dst_format
== PIPE_FORMAT_NONE
) {
926 /* Fall back to _mesa_get_teximage except for compressed formats,
927 * where decompression with a blit is always preferred. */
928 if (!util_format_is_compressed(src
->format
)) {
932 /* Set the appropriate format for the decompressed texture.
933 * Luminance and sRGB formats shouldn't appear here.*/
934 switch (src_format
) {
935 case PIPE_FORMAT_DXT1_RGB
:
936 case PIPE_FORMAT_DXT1_RGBA
:
937 case PIPE_FORMAT_DXT3_RGBA
:
938 case PIPE_FORMAT_DXT5_RGBA
:
939 case PIPE_FORMAT_RGTC1_UNORM
:
940 case PIPE_FORMAT_RGTC2_UNORM
:
941 case PIPE_FORMAT_ETC1_RGB8
:
942 dst_glformat
= GL_RGBA8
;
944 case PIPE_FORMAT_RGTC1_SNORM
:
945 case PIPE_FORMAT_RGTC2_SNORM
:
946 if (!ctx
->Extensions
.EXT_texture_snorm
)
948 dst_glformat
= GL_RGBA8_SNORM
;
950 /* TODO: for BPTC_*FLOAT, set RGBA32F and check for ARB_texture_float */
956 dst_format
= st_choose_format(st
, dst_glformat
, format
, type
,
957 pipe_target
, 0, bind
, FALSE
);
959 if (dst_format
== PIPE_FORMAT_NONE
) {
960 /* unable to get an rgba format!?! */
965 /* create the destination texture */
966 memset(&dst_templ
, 0, sizeof(dst_templ
));
967 dst_templ
.target
= pipe_target
;
968 dst_templ
.format
= dst_format
;
969 dst_templ
.bind
= bind
;
970 dst_templ
.usage
= PIPE_USAGE_STAGING
;
972 st_gl_texture_dims_to_pipe_dims(gl_target
, width
, height
, depth
,
973 &dst_templ
.width0
, &dst_templ
.height0
,
974 &dst_templ
.depth0
, &dst_templ
.array_size
);
976 dst
= screen
->resource_create(screen
, &dst_templ
);
981 /* From now on, we need the gallium representation of dimensions. */
982 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
987 blit
.src
.resource
= src
;
988 blit
.src
.level
= texImage
->Level
;
989 blit
.src
.format
= src_format
;
990 blit
.dst
.resource
= dst
;
992 blit
.dst
.format
= dst
->format
;
993 blit
.src
.box
.x
= blit
.dst
.box
.x
= 0;
994 blit
.src
.box
.y
= blit
.dst
.box
.y
= 0;
995 blit
.src
.box
.z
= texImage
->Face
;
997 blit
.src
.box
.width
= blit
.dst
.box
.width
= width
;
998 blit
.src
.box
.height
= blit
.dst
.box
.height
= height
;
999 blit
.src
.box
.depth
= blit
.dst
.box
.depth
= depth
;
1000 blit
.mask
= get_blit_mask(texImage
->_BaseFormat
, format
);
1001 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
1002 blit
.scissor_enable
= FALSE
;
1004 /* blit/render/decompress */
1005 st
->pipe
->blit(st
->pipe
, &blit
);
1007 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
1009 map
= pipe_transfer_map_3d(pipe
, dst
, 0, PIPE_TRANSFER_READ
,
1010 0, 0, 0, width
, height
, depth
, &tex_xfer
);
1015 mesa_format
= st_pipe_format_to_mesa_format(dst_format
);
1017 /* copy/pack data into user buffer */
1018 if (_mesa_format_matches_format_and_type(mesa_format
, format
, type
,
1019 ctx
->Pack
.SwapBytes
)) {
1021 const uint bytesPerRow
= width
* util_format_get_blocksize(dst_format
);
1024 for (slice
= 0; slice
< depth
; slice
++) {
1025 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
1026 /* 1D array textures.
1027 * We need to convert gallium coords to GL coords.
1029 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1030 width
, depth
, format
,
1032 memcpy(dest
, map
, bytesPerRow
);
1035 ubyte
*slice_map
= map
;
1037 for (row
= 0; row
< height
; row
++) {
1038 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1039 width
, height
, format
,
1040 type
, slice
, row
, 0);
1041 memcpy(dest
, slice_map
, bytesPerRow
);
1042 slice_map
+= tex_xfer
->stride
;
1045 map
+= tex_xfer
->layer_stride
;
1049 /* format translation via floats */
1053 assert(util_format_is_compressed(src
->format
));
1055 rgba
= malloc(width
* 4 * sizeof(GLfloat
));
1060 if (ST_DEBUG
& DEBUG_FALLBACK
)
1061 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
1063 for (slice
= 0; slice
< depth
; slice
++) {
1064 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
1065 /* 1D array textures.
1066 * We need to convert gallium coords to GL coords.
1068 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1069 width
, depth
, format
,
1072 /* get float[4] rgba row from surface */
1073 pipe_get_tile_rgba_format(tex_xfer
, map
, 0, 0, width
, 1,
1076 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
1077 type
, dest
, &ctx
->Pack
, 0);
1080 for (row
= 0; row
< height
; row
++) {
1081 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1082 width
, height
, format
,
1083 type
, slice
, row
, 0);
1085 /* get float[4] rgba row from surface */
1086 pipe_get_tile_rgba_format(tex_xfer
, map
, 0, row
, width
, 1,
1089 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
1090 type
, dest
, &ctx
->Pack
, 0);
1093 map
+= tex_xfer
->layer_stride
;
1102 pipe_transfer_unmap(pipe
, tex_xfer
);
1104 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
1105 pipe_resource_reference(&dst
, NULL
);
1109 _mesa_get_teximage(ctx
, format
, type
, pixels
, texImage
);
1115 * Do a CopyTexSubImage operation using a read transfer from the source,
1116 * a write transfer to the destination and get_tile()/put_tile() to access
1117 * the pixels/texels.
1119 * Note: srcY=0=TOP of renderbuffer
1122 fallback_copy_texsubimage(struct gl_context
*ctx
,
1123 struct st_renderbuffer
*strb
,
1124 struct st_texture_image
*stImage
,
1126 GLint destX
, GLint destY
, GLint destZ
,
1127 GLint srcX
, GLint srcY
,
1128 GLsizei width
, GLsizei height
)
1130 struct st_context
*st
= st_context(ctx
);
1131 struct pipe_context
*pipe
= st
->pipe
;
1132 struct pipe_transfer
*src_trans
;
1134 enum pipe_transfer_usage transfer_usage
;
1136 unsigned dst_width
= width
;
1137 unsigned dst_height
= height
;
1138 unsigned dst_depth
= 1;
1140 if (ST_DEBUG
& DEBUG_FALLBACK
)
1141 debug_printf("%s: fallback processing\n", __FUNCTION__
);
1143 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1144 srcY
= strb
->Base
.Height
- srcY
- height
;
1147 if (stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
) {
1148 /* Move y/height to z/depth for 1D array textures. */
1151 dst_depth
= dst_height
;
1155 map
= pipe_transfer_map(pipe
,
1158 strb
->rtt_face
+ strb
->rtt_slice
,
1161 width
, height
, &src_trans
);
1163 if ((baseFormat
== GL_DEPTH_COMPONENT
||
1164 baseFormat
== GL_DEPTH_STENCIL
) &&
1165 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1166 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1168 transfer_usage
= PIPE_TRANSFER_WRITE
;
1170 texDest
= st_texture_image_map(st
, stImage
, transfer_usage
,
1171 destX
, destY
, destZ
,
1172 dst_width
, dst_height
, dst_depth
);
1174 if (baseFormat
== GL_DEPTH_COMPONENT
||
1175 baseFormat
== GL_DEPTH_STENCIL
) {
1176 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1177 ctx
->Pixel
.DepthBias
!= 0.0F
);
1181 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1182 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1191 data
= malloc(width
* sizeof(uint
));
1194 /* To avoid a large temp memory allocation, do copy row by row */
1195 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1196 pipe_get_tile_z(src_trans
, map
, 0, srcY
, width
, 1, data
);
1198 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1201 if (stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
) {
1202 pipe_put_tile_z(stImage
->transfer
,
1203 texDest
+ row
*stImage
->transfer
->layer_stride
,
1204 0, 0, width
, 1, data
);
1207 pipe_put_tile_z(stImage
->transfer
, texDest
, 0, row
, width
, 1,
1213 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexSubImage()");
1221 malloc(width
* height
* 4 * sizeof(GLfloat
));
1223 if (tempSrc
&& texDest
) {
1224 const GLint dims
= 2;
1226 struct gl_texture_image
*texImage
= &stImage
->base
;
1227 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1229 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1230 unpack
.Invert
= GL_TRUE
;
1233 if (stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
) {
1234 dstRowStride
= stImage
->transfer
->layer_stride
;
1237 dstRowStride
= stImage
->transfer
->stride
;
1240 /* get float/RGBA image from framebuffer */
1241 /* XXX this usually involves a lot of int/float conversion.
1242 * try to avoid that someday.
1244 pipe_get_tile_rgba_format(src_trans
, map
, 0, 0, width
, height
,
1245 util_format_linear(strb
->texture
->format
),
1248 /* Store into texture memory.
1249 * Note that this does some special things such as pixel transfer
1250 * ops and format conversion. In particular, if the dest tex format
1251 * is actually RGBA but the user created the texture as GL_RGB we
1252 * need to fill-in/override the alpha channel with 1.0.
1254 _mesa_texstore(ctx
, dims
,
1255 texImage
->_BaseFormat
,
1256 texImage
->TexFormat
,
1260 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1264 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1270 st_texture_image_unmap(st
, stImage
);
1271 pipe
->transfer_unmap(pipe
, src_trans
);
1277 * If the format of the src renderbuffer and the format of the dest
1278 * texture are compatible (in terms of blitting), return a TGSI writemask
1279 * to be used during the blit.
1280 * If the src/dest are incompatible, return 0.
1283 compatible_src_dst_formats(struct gl_context
*ctx
,
1284 const struct gl_renderbuffer
*src
,
1285 const struct gl_texture_image
*dst
)
1287 /* Get logical base formats for the src and dest.
1288 * That is, use the user-requested formats and not the actual, device-
1290 * For example, the user may have requested an A8 texture but the
1291 * driver may actually be using an RGBA texture format. When we
1292 * copy/blit to that texture, we only want to copy the Alpha channel
1293 * and not the RGB channels.
1295 * Similarly, when the src FBO was created an RGB format may have been
1296 * requested but the driver actually chose an RGBA format. In that case,
1297 * we don't want to copy the undefined Alpha channel to the dest texture
1298 * (it should be 1.0).
1300 const GLenum srcFormat
= _mesa_base_fbo_format(ctx
, src
->InternalFormat
);
1301 const GLenum dstFormat
= _mesa_base_tex_format(ctx
, dst
->InternalFormat
);
1304 * XXX when we have red-only and red/green renderbuffers we'll need
1305 * to add more cases here (or implement a general-purpose routine that
1306 * queries the existance of the R,G,B,A channels in the src and dest).
1308 if (srcFormat
== dstFormat
) {
1309 /* This is the same as matching_base_formats, which should
1310 * always pass, as it did previously.
1312 return TGSI_WRITEMASK_XYZW
;
1314 else if (srcFormat
== GL_RGB
&& dstFormat
== GL_RGBA
) {
1315 /* Make sure that A in the dest is 1. The actual src format
1316 * may be RGBA and have undefined A values.
1318 return TGSI_WRITEMASK_XYZ
;
1320 else if (srcFormat
== GL_RGBA
&& dstFormat
== GL_RGB
) {
1321 /* Make sure that A in the dest is 1. The actual dst format
1322 * may be RGBA and will need A=1 to provide proper alpha values
1323 * when sampled later.
1325 return TGSI_WRITEMASK_XYZ
;
1328 if (ST_DEBUG
& DEBUG_FALLBACK
)
1329 debug_printf("%s failed for src %s, dst %s\n",
1331 _mesa_lookup_enum_by_nr(srcFormat
),
1332 _mesa_lookup_enum_by_nr(dstFormat
));
1342 * Do pipe->blit. Return FALSE if the blitting is unsupported
1343 * for the given formats.
1346 st_pipe_blit(struct pipe_context
*pipe
, struct pipe_blit_info
*blit
)
1348 struct pipe_screen
*screen
= pipe
->screen
;
1351 if (util_format_is_depth_or_stencil(blit
->dst
.format
)) {
1352 dst_usage
= PIPE_BIND_DEPTH_STENCIL
;
1355 dst_usage
= PIPE_BIND_RENDER_TARGET
;
1358 /* try resource_copy_region in case the format is not supported
1360 if (util_try_blit_via_copy_region(pipe
, blit
)) {
1361 return GL_TRUE
; /* done */
1364 /* check the format support */
1365 if (!screen
->is_format_supported(screen
, blit
->src
.format
,
1367 PIPE_BIND_SAMPLER_VIEW
) ||
1368 !screen
->is_format_supported(screen
, blit
->dst
.format
,
1374 pipe
->blit(pipe
, blit
);
1380 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1381 * Note that the region to copy has already been clipped so we know we
1382 * won't read from outside the source renderbuffer's bounds.
1384 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1387 st_CopyTexSubImage(struct gl_context
*ctx
, GLuint dims
,
1388 struct gl_texture_image
*texImage
,
1389 GLint destX
, GLint destY
, GLint destZ
,
1390 struct gl_renderbuffer
*rb
,
1391 GLint srcX
, GLint srcY
, GLsizei width
, GLsizei height
)
1393 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1394 const GLenum texBaseFormat
= texImage
->_BaseFormat
;
1395 struct st_renderbuffer
*strb
= st_renderbuffer(rb
);
1396 struct st_context
*st
= st_context(ctx
);
1397 struct pipe_context
*pipe
= st
->pipe
;
1398 struct pipe_screen
*screen
= pipe
->screen
;
1399 enum pipe_format dest_format
, src_format
;
1400 GLuint color_writemask
;
1401 struct pipe_surface
*dest_surface
= NULL
;
1402 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1403 struct pipe_surface surf_tmpl
;
1406 GLint srcY0
, srcY1
, yStep
;
1408 /* make sure finalize_textures has been called?
1410 if (0) st_validate_state(st
);
1412 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1413 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1418 assert(strb
->surface
);
1419 assert(stImage
->pt
);
1421 src_format
= util_format_linear(strb
->surface
->format
);
1422 dest_format
= util_format_linear(stImage
->pt
->format
);
1425 srcY1
= strb
->Base
.Height
- srcY
- height
;
1426 srcY0
= srcY1
+ height
;
1431 srcY1
= srcY0
+ height
;
1435 if (ctx
->_ImageTransferState
) {
1439 /* Compressed and subsampled textures aren't supported for blitting. */
1440 if (!util_format_is_plain(dest_format
)) {
1444 if (texBaseFormat
== GL_DEPTH_STENCIL
||
1445 texBaseFormat
== GL_DEPTH_COMPONENT
) {
1446 dst_usage
= PIPE_BIND_DEPTH_STENCIL
;
1449 dst_usage
= PIPE_BIND_RENDER_TARGET
;
1452 blit_mask
= get_blit_mask(rb
->_BaseFormat
, texImage
->_BaseFormat
);
1454 /* Determine if the src framebuffer and dest texture have the same
1455 * base format. We need this to detect a case such as the framebuffer
1456 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1457 * texture format stores RGBA we need to set A=1 (overriding the
1458 * framebuffer's alpha values).
1460 * XXX util_blit_pixels doesn't support MSAA resolve, so always use
1461 * pipe->blit for MSAA textures
1463 if ((blit_mask
& PIPE_MASK_RGBA
) &&
1464 texBaseFormat
!= strb
->Base
._BaseFormat
&&
1465 strb
->texture
->nr_samples
<= 1) {
1469 /* Blit the texture.
1470 * This supports flipping, format conversions, and downsampling.
1473 /* If stImage->pt is an independent image (not a pointer into a full
1474 * mipmap) stImage->pt.last_level will be zero and we need to use that
1475 * as the dest level.
1477 unsigned dstLevel
= MIN2(stImage
->base
.Level
, stImage
->pt
->last_level
);
1478 struct pipe_blit_info blit
;
1480 memset(&blit
, 0, sizeof(blit
));
1481 blit
.src
.resource
= strb
->texture
;
1482 blit
.src
.format
= src_format
;
1483 blit
.src
.level
= strb
->surface
->u
.tex
.level
;
1484 blit
.src
.box
.x
= srcX
;
1485 blit
.src
.box
.y
= srcY0
;
1486 blit
.src
.box
.z
= strb
->surface
->u
.tex
.first_layer
;
1487 blit
.src
.box
.width
= width
;
1488 blit
.src
.box
.height
= srcY1
- srcY0
;
1489 blit
.src
.box
.depth
= 1;
1490 blit
.dst
.resource
= stImage
->pt
;
1491 blit
.dst
.format
= dest_format
;
1492 blit
.dst
.level
= dstLevel
;
1493 blit
.dst
.box
.x
= destX
;
1494 blit
.dst
.box
.y
= destY
;
1495 blit
.dst
.box
.z
= stImage
->base
.Face
+ destZ
;
1496 blit
.dst
.box
.width
= width
;
1497 blit
.dst
.box
.height
= height
;
1498 blit
.dst
.box
.depth
= 1;
1499 blit
.mask
= blit_mask
;
1500 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
1502 /* 1D array textures need special treatment.
1503 * Blit rows from the source to layers in the destination. */
1504 if (texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
) {
1507 for (y
= srcY0
, layer
= 0; layer
< height
; y
+= yStep
, layer
++) {
1509 blit
.src
.box
.height
= 1;
1511 blit
.dst
.box
.height
= 1;
1512 blit
.dst
.box
.z
= destY
+ layer
;
1514 if (!st_pipe_blit(pipe
, &blit
)) {
1520 /* All the other texture targets. */
1521 if (!st_pipe_blit(pipe
, &blit
)) {
1529 if (texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
) {
1530 /* u_blit cannot copy 1D array textures as required by CopyTexSubImage */
1534 color_writemask
= compatible_src_dst_formats(ctx
, &strb
->Base
, texImage
);
1536 if (!color_writemask
||
1537 !screen
->is_format_supported(screen
, src_format
,
1539 PIPE_BIND_SAMPLER_VIEW
) ||
1540 !screen
->is_format_supported(screen
, dest_format
,
1546 memset(&surf_tmpl
, 0, sizeof(surf_tmpl
));
1547 surf_tmpl
.format
= util_format_linear(stImage
->pt
->format
);
1548 surf_tmpl
.u
.tex
.level
= stImage
->base
.Level
;
1549 surf_tmpl
.u
.tex
.first_layer
= stImage
->base
.Face
+ destZ
;
1550 surf_tmpl
.u
.tex
.last_layer
= stImage
->base
.Face
+ destZ
;
1552 dest_surface
= pipe
->create_surface(pipe
, stImage
->pt
,
1554 util_blit_pixels(st
->blit
,
1556 strb
->surface
->u
.tex
.level
,
1558 srcX
+ width
, srcY1
,
1559 strb
->surface
->u
.tex
.first_layer
,
1562 destX
+ width
, destY
+ height
,
1563 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1564 color_writemask
, 0);
1565 pipe_surface_reference(&dest_surface
, NULL
);
1569 /* software fallback */
1570 fallback_copy_texsubimage(ctx
,
1571 strb
, stImage
, texBaseFormat
,
1572 destX
, destY
, destZ
,
1573 srcX
, srcY
, width
, height
);
1578 * Copy image data from stImage into the texture object 'stObj' at level
1582 copy_image_data_to_texture(struct st_context
*st
,
1583 struct st_texture_object
*stObj
,
1585 struct st_texture_image
*stImage
)
1589 const struct gl_texture_image
*dstImage
=
1590 stObj
->base
.Image
[stImage
->base
.Face
][dstLevel
];
1592 assert(dstImage
->Width
== stImage
->base
.Width
);
1593 assert(dstImage
->Height
== stImage
->base
.Height
);
1594 assert(dstImage
->Depth
== stImage
->base
.Depth
);
1598 /* Copy potentially with the blitter:
1601 if (stImage
->pt
->last_level
== 0)
1604 src_level
= stImage
->base
.Level
;
1606 assert(src_level
<= stImage
->pt
->last_level
);
1607 assert(u_minify(stImage
->pt
->width0
, src_level
) == stImage
->base
.Width
);
1608 assert(stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
||
1609 u_minify(stImage
->pt
->height0
, src_level
) == stImage
->base
.Height
);
1610 assert(stImage
->pt
->target
== PIPE_TEXTURE_2D_ARRAY
||
1611 stImage
->pt
->target
== PIPE_TEXTURE_CUBE_ARRAY
||
1612 u_minify(stImage
->pt
->depth0
, src_level
) == stImage
->base
.Depth
);
1614 st_texture_image_copy(st
->pipe
,
1615 stObj
->pt
, dstLevel
, /* dest texture, level */
1616 stImage
->pt
, src_level
, /* src texture, level */
1617 stImage
->base
.Face
);
1619 pipe_resource_reference(&stImage
->pt
, NULL
);
1621 else if (stImage
->TexData
) {
1622 /* Copy from malloc'd memory */
1623 /* XXX this should be re-examined/tested with a compressed format */
1624 GLuint blockSize
= util_format_get_blocksize(stObj
->pt
->format
);
1625 GLuint srcRowStride
= stImage
->base
.Width
* blockSize
;
1626 GLuint srcSliceStride
= stImage
->base
.Height
* srcRowStride
;
1627 st_texture_image_data(st
,
1634 _mesa_align_free(stImage
->TexData
);
1635 stImage
->TexData
= NULL
;
1638 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1643 * Called during state validation. When this function is finished,
1644 * the texture object should be ready for rendering.
1645 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1648 st_finalize_texture(struct gl_context
*ctx
,
1649 struct pipe_context
*pipe
,
1650 struct gl_texture_object
*tObj
)
1652 struct st_context
*st
= st_context(ctx
);
1653 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1654 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1656 struct st_texture_image
*firstImage
;
1657 enum pipe_format firstImageFormat
;
1658 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
1660 if (_mesa_is_texture_complete(tObj
, &tObj
->Sampler
)) {
1661 /* The texture is complete and we know exactly how many mipmap levels
1662 * are present/needed. This is conditional because we may be called
1663 * from the st_generate_mipmap() function when the texture object is
1664 * incomplete. In that case, we'll have set stObj->lastLevel before
1667 if (stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
1668 stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
)
1669 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1671 stObj
->lastLevel
= stObj
->base
._MaxLevel
;
1674 if (tObj
->Target
== GL_TEXTURE_BUFFER
) {
1675 struct st_buffer_object
*st_obj
= st_buffer_object(tObj
->BufferObject
);
1677 if (st_obj
->buffer
!= stObj
->pt
) {
1678 pipe_resource_reference(&stObj
->pt
, st_obj
->buffer
);
1679 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
1680 stObj
->width0
= stObj
->pt
->width0
/ _mesa_get_format_bytes(tObj
->_BufferObjectFormat
);
1688 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1691 /* If both firstImage and stObj point to a texture which can contain
1692 * all active images, favour firstImage. Note that because of the
1693 * completeness requirement, we know that the image dimensions
1696 if (firstImage
->pt
&&
1697 firstImage
->pt
!= stObj
->pt
&&
1698 (!stObj
->pt
|| firstImage
->pt
->last_level
>= stObj
->pt
->last_level
)) {
1699 pipe_resource_reference(&stObj
->pt
, firstImage
->pt
);
1700 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
1703 /* Find gallium format for the Mesa texture */
1704 firstImageFormat
= st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1706 /* Find size of level=0 Gallium mipmap image, plus number of texture layers */
1708 GLuint width
, height
, depth
;
1709 if (!guess_base_level_size(stObj
->base
.Target
,
1710 firstImage
->base
.Width2
,
1711 firstImage
->base
.Height2
,
1712 firstImage
->base
.Depth2
,
1713 firstImage
->base
.Level
,
1714 &width
, &height
, &depth
)) {
1715 width
= stObj
->width0
;
1716 height
= stObj
->height0
;
1717 depth
= stObj
->depth0
;
1719 /* convert GL dims to Gallium dims */
1720 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
, width
, height
, depth
,
1721 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1724 /* If we already have a gallium texture, check that it matches the texture
1725 * object's format, target, size, num_levels, etc.
1728 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1729 !st_sampler_compat_formats(stObj
->pt
->format
, firstImageFormat
) ||
1730 stObj
->pt
->last_level
< stObj
->lastLevel
||
1731 stObj
->pt
->width0
!= ptWidth
||
1732 stObj
->pt
->height0
!= ptHeight
||
1733 stObj
->pt
->depth0
!= ptDepth
||
1734 stObj
->pt
->array_size
!= ptLayers
)
1736 /* The gallium texture does not match the Mesa texture so delete the
1737 * gallium texture now. We'll make a new one below.
1739 pipe_resource_reference(&stObj
->pt
, NULL
);
1740 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
1741 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1745 /* May need to create a new gallium texture:
1748 GLuint bindings
= default_bindings(st
, firstImageFormat
);
1750 stObj
->pt
= st_texture_create(st
,
1751 gl_target_to_pipe(stObj
->base
.Target
),
1761 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1766 /* Pull in any images not in the object's texture:
1768 for (face
= 0; face
< nr_faces
; face
++) {
1770 for (level
= stObj
->base
.BaseLevel
; level
<= stObj
->lastLevel
; level
++) {
1771 struct st_texture_image
*stImage
=
1772 st_texture_image(stObj
->base
.Image
[face
][level
]);
1774 /* Need to import images in main memory or held in other textures.
1776 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1778 (stImage
->base
.Width
== u_minify(stObj
->width0
, level
) &&
1779 stImage
->base
.Height
== u_minify(stObj
->height0
, level
) &&
1780 stImage
->base
.Depth
== u_minify(stObj
->depth0
, level
))) {
1781 /* src image fits expected dest mipmap level size */
1782 copy_image_data_to_texture(st
, stObj
, level
, stImage
);
1793 * Called via ctx->Driver.AllocTextureStorage() to allocate texture memory
1794 * for a whole mipmap stack.
1797 st_AllocTextureStorage(struct gl_context
*ctx
,
1798 struct gl_texture_object
*texObj
,
1799 GLsizei levels
, GLsizei width
,
1800 GLsizei height
, GLsizei depth
)
1802 const GLuint numFaces
= _mesa_num_tex_faces(texObj
->Target
);
1803 struct st_context
*st
= st_context(ctx
);
1804 struct st_texture_object
*stObj
= st_texture_object(texObj
);
1805 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
, bindings
;
1806 enum pipe_format fmt
;
1811 /* Save the level=0 dimensions */
1812 stObj
->width0
= width
;
1813 stObj
->height0
= height
;
1814 stObj
->depth0
= depth
;
1815 stObj
->lastLevel
= levels
- 1;
1817 fmt
= st_mesa_format_to_pipe_format(texObj
->Image
[0][0]->TexFormat
);
1819 bindings
= default_bindings(st
, fmt
);
1821 st_gl_texture_dims_to_pipe_dims(texObj
->Target
,
1822 width
, height
, depth
,
1823 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1825 stObj
->pt
= st_texture_create(st
,
1826 gl_target_to_pipe(texObj
->Target
),
1837 /* Set image resource pointers */
1838 for (level
= 0; level
< levels
; level
++) {
1840 for (face
= 0; face
< numFaces
; face
++) {
1841 struct st_texture_image
*stImage
=
1842 st_texture_image(texObj
->Image
[face
][level
]);
1843 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1852 st_TestProxyTexImage(struct gl_context
*ctx
, GLenum target
,
1853 GLint level
, gl_format format
,
1854 GLint width
, GLint height
,
1855 GLint depth
, GLint border
)
1857 struct st_context
*st
= st_context(ctx
);
1858 struct pipe_context
*pipe
= st
->pipe
;
1860 if (width
== 0 || height
== 0 || depth
== 0) {
1861 /* zero-sized images are legal, and always fit! */
1865 if (pipe
->screen
->can_create_resource
) {
1866 /* Ask the gallium driver if the texture is too large */
1867 struct gl_texture_object
*texObj
=
1868 _mesa_get_current_tex_object(ctx
, target
);
1869 struct pipe_resource pt
;
1871 /* Setup the pipe_resource object
1873 memset(&pt
, 0, sizeof(pt
));
1875 pt
.target
= gl_target_to_pipe(target
);
1876 pt
.format
= st_mesa_format_to_pipe_format(format
);
1878 st_gl_texture_dims_to_pipe_dims(target
,
1879 width
, height
, depth
,
1880 &pt
.width0
, &pt
.height0
,
1881 &pt
.depth0
, &pt
.array_size
);
1883 if (level
== 0 && (texObj
->Sampler
.MinFilter
== GL_LINEAR
||
1884 texObj
->Sampler
.MinFilter
== GL_NEAREST
)) {
1885 /* assume just one mipmap level */
1889 /* assume a full set of mipmaps */
1890 pt
.last_level
= _mesa_logbase2(MAX3(width
, height
, depth
));
1893 return pipe
->screen
->can_create_resource(pipe
->screen
, &pt
);
1896 /* Use core Mesa fallback */
1897 return _mesa_test_proxy_teximage(ctx
, target
, level
, format
,
1898 width
, height
, depth
, border
);
1904 st_init_texture_functions(struct dd_function_table
*functions
)
1906 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1907 functions
->QuerySamplesForFormat
= st_QuerySamplesForFormat
;
1908 functions
->TexImage
= st_TexImage
;
1909 functions
->TexSubImage
= st_TexSubImage
;
1910 functions
->CompressedTexSubImage
= _mesa_store_compressed_texsubimage
;
1911 functions
->CopyTexSubImage
= st_CopyTexSubImage
;
1912 functions
->GenerateMipmap
= st_generate_mipmap
;
1914 functions
->GetTexImage
= st_GetTexImage
;
1916 /* compressed texture functions */
1917 functions
->CompressedTexImage
= st_CompressedTexImage
;
1918 functions
->GetCompressedTexImage
= _mesa_get_compressed_teximage
;
1920 functions
->NewTextureObject
= st_NewTextureObject
;
1921 functions
->NewTextureImage
= st_NewTextureImage
;
1922 functions
->DeleteTextureImage
= st_DeleteTextureImage
;
1923 functions
->DeleteTexture
= st_DeleteTextureObject
;
1924 functions
->AllocTextureImageBuffer
= st_AllocTextureImageBuffer
;
1925 functions
->FreeTextureImageBuffer
= st_FreeTextureImageBuffer
;
1926 functions
->MapTextureImage
= st_MapTextureImage
;
1927 functions
->UnmapTextureImage
= st_UnmapTextureImage
;
1929 /* XXX Temporary until we can query pipe's texture sizes */
1930 functions
->TestProxyTexImage
= st_TestProxyTexImage
;
1932 functions
->AllocTextureStorage
= st_AllocTextureStorage
;