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/bufferobj.h"
29 #include "main/enums.h"
30 #include "main/fbobject.h"
31 #include "main/formats.h"
32 #include "main/image.h"
33 #include "main/imports.h"
34 #include "main/macros.h"
35 #include "main/mipmap.h"
36 #include "main/pack.h"
38 #include "main/pixeltransfer.h"
39 #include "main/texcompress.h"
40 #include "main/texgetimage.h"
41 #include "main/teximage.h"
42 #include "main/texobj.h"
43 #include "main/texstore.h"
45 #include "state_tracker/st_debug.h"
46 #include "state_tracker/st_context.h"
47 #include "state_tracker/st_cb_fbo.h"
48 #include "state_tracker/st_cb_flush.h"
49 #include "state_tracker/st_cb_texture.h"
50 #include "state_tracker/st_cb_bufferobjects.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_format.h"
62 #include "util/u_surface.h"
63 #include "util/u_sampler.h"
64 #include "util/u_math.h"
65 #include "util/u_box.h"
67 #define DBG if (0) printf
70 enum pipe_texture_target
71 gl_target_to_pipe(GLenum target
)
75 case GL_PROXY_TEXTURE_1D
:
76 return PIPE_TEXTURE_1D
;
78 case GL_PROXY_TEXTURE_2D
:
79 case GL_TEXTURE_EXTERNAL_OES
:
80 case GL_TEXTURE_2D_MULTISAMPLE
:
81 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
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 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
104 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
105 return PIPE_TEXTURE_2D_ARRAY
;
106 case GL_TEXTURE_BUFFER
:
108 case GL_TEXTURE_CUBE_MAP_ARRAY
:
109 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
110 return PIPE_TEXTURE_CUBE_ARRAY
;
118 /** called via ctx->Driver.NewTextureImage() */
119 static struct gl_texture_image
*
120 st_NewTextureImage(struct gl_context
* ctx
)
122 DBG("%s\n", __FUNCTION__
);
124 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
128 /** called via ctx->Driver.DeleteTextureImage() */
130 st_DeleteTextureImage(struct gl_context
* ctx
, struct gl_texture_image
*img
)
132 /* nothing special (yet) for st_texture_image */
133 _mesa_delete_texture_image(ctx
, img
);
137 /** called via ctx->Driver.NewTextureObject() */
138 static struct gl_texture_object
*
139 st_NewTextureObject(struct gl_context
* ctx
, GLuint name
, GLenum target
)
141 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
143 DBG("%s\n", __FUNCTION__
);
144 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
149 /** called via ctx->Driver.DeleteTextureObject() */
151 st_DeleteTextureObject(struct gl_context
*ctx
,
152 struct gl_texture_object
*texObj
)
154 struct st_context
*st
= st_context(ctx
);
155 struct st_texture_object
*stObj
= st_texture_object(texObj
);
157 pipe_resource_reference(&stObj
->pt
, NULL
);
158 if (stObj
->sampler_view
) {
159 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
161 _mesa_delete_texture_object(ctx
, texObj
);
165 /** called via ctx->Driver.FreeTextureImageBuffer() */
167 st_FreeTextureImageBuffer(struct gl_context
*ctx
,
168 struct gl_texture_image
*texImage
)
170 struct st_texture_image
*stImage
= st_texture_image(texImage
);
172 DBG("%s\n", __FUNCTION__
);
175 pipe_resource_reference(&stImage
->pt
, NULL
);
178 if (stImage
->TexData
) {
179 _mesa_align_free(stImage
->TexData
);
180 stImage
->TexData
= NULL
;
185 /** called via ctx->Driver.MapTextureImage() */
187 st_MapTextureImage(struct gl_context
*ctx
,
188 struct gl_texture_image
*texImage
,
189 GLuint slice
, GLuint x
, GLuint y
, GLuint w
, GLuint h
,
191 GLubyte
**mapOut
, GLint
*rowStrideOut
)
193 struct st_context
*st
= st_context(ctx
);
194 struct st_texture_image
*stImage
= st_texture_image(texImage
);
199 if (mode
& GL_MAP_READ_BIT
)
200 pipeMode
|= PIPE_TRANSFER_READ
;
201 if (mode
& GL_MAP_WRITE_BIT
)
202 pipeMode
|= PIPE_TRANSFER_WRITE
;
203 if (mode
& GL_MAP_INVALIDATE_RANGE_BIT
)
204 pipeMode
|= PIPE_TRANSFER_DISCARD_RANGE
;
206 map
= st_texture_image_map(st
, stImage
, pipeMode
, x
, y
, slice
, w
, h
, 1);
209 *rowStrideOut
= stImage
->transfer
->stride
;
218 /** called via ctx->Driver.UnmapTextureImage() */
220 st_UnmapTextureImage(struct gl_context
*ctx
,
221 struct gl_texture_image
*texImage
,
224 struct st_context
*st
= st_context(ctx
);
225 struct st_texture_image
*stImage
= st_texture_image(texImage
);
226 st_texture_image_unmap(st
, stImage
);
231 * Return default texture resource binding bitmask for the given format.
234 default_bindings(struct st_context
*st
, enum pipe_format format
)
236 struct pipe_screen
*screen
= st
->pipe
->screen
;
237 const unsigned target
= PIPE_TEXTURE_2D
;
240 if (util_format_is_depth_or_stencil(format
))
241 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_DEPTH_STENCIL
;
243 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_RENDER_TARGET
;
245 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
249 format
= util_format_linear(format
);
251 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
254 return PIPE_BIND_SAMPLER_VIEW
;
260 * Given the size of a mipmap image, try to compute the size of the level=0
263 * Note that this isn't always accurate for odd-sized, non-POW textures.
264 * For example, if level=1 and width=40 then the level=0 width may be 80 or 81.
266 * \return GL_TRUE for success, GL_FALSE for failure
269 guess_base_level_size(GLenum target
,
270 GLuint width
, GLuint height
, GLuint depth
, GLuint level
,
271 GLuint
*width0
, GLuint
*height0
, GLuint
*depth0
)
278 /* Guess the size of the base level.
279 * Depending on the image's size, we can't always make a guess here.
283 case GL_TEXTURE_1D_ARRAY
:
288 case GL_TEXTURE_2D_ARRAY
:
289 /* We can't make a good guess here, because the base level dimensions
292 if (width
== 1 || height
== 1) {
299 case GL_TEXTURE_CUBE_MAP
:
300 case GL_TEXTURE_CUBE_MAP_ARRAY
:
306 /* We can't make a good guess here, because the base level dimensions
309 if (width
== 1 || height
== 1 || depth
== 1) {
317 case GL_TEXTURE_RECTANGLE
:
334 * Try to allocate a pipe_resource object for the given st_texture_object.
336 * We use the given st_texture_image as a clue to determine the size of the
337 * mipmap image at level=0.
339 * \return GL_TRUE for success, GL_FALSE if out of memory.
342 guess_and_alloc_texture(struct st_context
*st
,
343 struct st_texture_object
*stObj
,
344 const struct st_texture_image
*stImage
)
346 GLuint lastLevel
, width
, height
, depth
;
348 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
349 enum pipe_format fmt
;
351 DBG("%s\n", __FUNCTION__
);
355 if (!guess_base_level_size(stObj
->base
.Target
,
356 stImage
->base
.Width2
,
357 stImage
->base
.Height2
,
358 stImage
->base
.Depth2
,
360 &width
, &height
, &depth
)) {
361 /* we can't determine the image size at level=0 */
362 stObj
->width0
= stObj
->height0
= stObj
->depth0
= 0;
363 /* this is not an out of memory error */
367 /* At this point, (width x height x depth) is the expected size of
368 * the level=0 mipmap image.
371 /* Guess a reasonable value for lastLevel. With OpenGL we have no
372 * idea how many mipmap levels will be in a texture until we start
373 * to render with it. Make an educated guess here but be prepared
374 * to re-allocating a texture buffer with space for more (or fewer)
375 * mipmap levels later.
377 if ((stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
||
378 stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
379 (stObj
->base
.BaseLevel
== 0 &&
380 stObj
->base
.MaxLevel
== 0) ||
381 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
382 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
383 !stObj
->base
.GenerateMipmap
&&
384 stImage
->base
.Level
== 0) {
385 /* only alloc space for a single mipmap level */
389 /* alloc space for a full mipmap */
390 lastLevel
= _mesa_get_tex_max_num_levels(stObj
->base
.Target
,
391 width
, height
, depth
) - 1;
394 /* Save the level=0 dimensions */
395 stObj
->width0
= width
;
396 stObj
->height0
= height
;
397 stObj
->depth0
= depth
;
399 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
);
401 bindings
= default_bindings(st
, fmt
);
403 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
404 width
, height
, depth
,
405 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
407 stObj
->pt
= st_texture_create(st
,
408 gl_target_to_pipe(stObj
->base
.Target
),
417 stObj
->lastLevel
= lastLevel
;
419 DBG("%s returning %d\n", __FUNCTION__
, (stObj
->pt
!= NULL
));
421 return stObj
->pt
!= NULL
;
426 * Called via ctx->Driver.AllocTextureImageBuffer().
427 * If the texture object/buffer already has space for the indicated image,
428 * we're done. Otherwise, allocate memory for the new texture image.
431 st_AllocTextureImageBuffer(struct gl_context
*ctx
,
432 struct gl_texture_image
*texImage
)
434 struct st_context
*st
= st_context(ctx
);
435 struct st_texture_image
*stImage
= st_texture_image(texImage
);
436 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
437 const GLuint level
= texImage
->Level
;
438 GLuint width
= texImage
->Width
;
439 GLuint height
= texImage
->Height
;
440 GLuint depth
= texImage
->Depth
;
442 DBG("%s\n", __FUNCTION__
);
444 assert(!stImage
->TexData
);
445 assert(!stImage
->pt
); /* xxx this might be wrong */
447 /* Look if the parent texture object has space for this image */
449 level
<= stObj
->pt
->last_level
&&
450 st_texture_match_image(stObj
->pt
, texImage
)) {
451 /* this image will fit in the existing texture object's memory */
452 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
456 /* The parent texture object does not have space for this image */
458 pipe_resource_reference(&stObj
->pt
, NULL
);
459 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
461 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
462 /* Probably out of memory.
463 * Try flushing any pending rendering, then retry.
466 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
467 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
473 st_texture_match_image(stObj
->pt
, texImage
)) {
474 /* The image will live in the object's mipmap memory */
475 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
480 /* Create a new, temporary texture/resource/buffer to hold this
481 * one texture image. Note that when we later access this image
482 * (either for mapping or copying) we'll want to always specify
483 * mipmap level=0, even if the image represents some other mipmap
486 enum pipe_format format
=
487 st_mesa_format_to_pipe_format(texImage
->TexFormat
);
488 GLuint bindings
= default_bindings(st
, format
);
489 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
491 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
492 width
, height
, depth
,
493 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
495 stImage
->pt
= st_texture_create(st
,
496 gl_target_to_pipe(stObj
->base
.Target
),
504 return stImage
->pt
!= NULL
;
510 * Preparation prior to glTexImage. Basically check the 'surface_based'
511 * field and switch to a "normal" tex image if necessary.
514 prep_teximage(struct gl_context
*ctx
, struct gl_texture_image
*texImage
,
515 GLenum format
, GLenum type
)
517 struct gl_texture_object
*texObj
= texImage
->TexObject
;
518 struct st_texture_object
*stObj
= st_texture_object(texObj
);
520 /* switch to "normal" */
521 if (stObj
->surface_based
) {
522 const GLenum target
= texObj
->Target
;
523 const GLuint level
= texImage
->Level
;
526 _mesa_clear_texture_object(ctx
, texObj
);
527 pipe_resource_reference(&stObj
->pt
, NULL
);
529 /* oops, need to init this image again */
530 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
531 texImage
->InternalFormat
, format
,
534 _mesa_init_teximage_fields(ctx
, texImage
,
535 texImage
->Width
, texImage
->Height
,
536 texImage
->Depth
, texImage
->Border
,
537 texImage
->InternalFormat
, texFormat
);
539 stObj
->surface_based
= GL_FALSE
;
545 * Return a writemask for the gallium blit. The parameters can be base
546 * formats or "format" from glDrawPixels/glTexImage/glGetTexImage.
549 st_get_blit_mask(GLenum srcFormat
, GLenum dstFormat
)
552 case GL_DEPTH_STENCIL
:
554 case GL_DEPTH_STENCIL
:
556 case GL_DEPTH_COMPONENT
:
558 case GL_STENCIL_INDEX
:
565 case GL_DEPTH_COMPONENT
:
567 case GL_DEPTH_STENCIL
:
568 case GL_DEPTH_COMPONENT
:
575 case GL_STENCIL_INDEX
:
577 case GL_STENCIL_INDEX
:
585 return PIPE_MASK_RGBA
;
591 st_TexSubImage(struct gl_context
*ctx
, GLuint dims
,
592 struct gl_texture_image
*texImage
,
593 GLint xoffset
, GLint yoffset
, GLint zoffset
,
594 GLint width
, GLint height
, GLint depth
,
595 GLenum format
, GLenum type
, const void *pixels
,
596 const struct gl_pixelstore_attrib
*unpack
)
598 struct st_context
*st
= st_context(ctx
);
599 struct st_texture_image
*stImage
= st_texture_image(texImage
);
600 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
601 struct pipe_context
*pipe
= st
->pipe
;
602 struct pipe_screen
*screen
= pipe
->screen
;
603 struct pipe_resource
*dst
= stImage
->pt
;
604 struct pipe_resource
*src
= NULL
;
605 struct pipe_resource src_templ
;
606 struct pipe_transfer
*transfer
;
607 struct pipe_blit_info blit
;
608 enum pipe_format src_format
, dst_format
;
609 gl_format mesa_src_format
;
610 GLenum gl_target
= texImage
->TexObject
->Target
;
614 if (!st
->prefer_blit_based_texture_transfer
) {
622 /* XXX Fallback for depth-stencil formats due to an incomplete stencil
623 * blit implementation in some drivers. */
624 if (format
== GL_DEPTH_STENCIL
) {
628 /* If the base internal format and the texture format don't match,
629 * we can't use blit-based TexSubImage. */
630 if (texImage
->_BaseFormat
!=
631 _mesa_get_format_base_format(texImage
->TexFormat
)) {
635 /* See if the texture format already matches the format and type,
636 * in which case the memcpy-based fast path will likely be used and
637 * we don't have to blit. */
638 if (_mesa_format_matches_format_and_type(texImage
->TexFormat
, format
,
639 type
, unpack
->SwapBytes
)) {
643 if (format
== GL_DEPTH_COMPONENT
|| format
== GL_DEPTH_STENCIL
)
644 bind
= PIPE_BIND_DEPTH_STENCIL
;
646 bind
= PIPE_BIND_RENDER_TARGET
;
648 /* See if the destination format is supported.
649 * For luminance and intensity, only the red channel is stored there. */
650 dst_format
= util_format_linear(dst
->format
);
651 dst_format
= util_format_luminance_to_red(dst_format
);
652 dst_format
= util_format_intensity_to_red(dst_format
);
655 !screen
->is_format_supported(screen
, dst_format
, dst
->target
,
656 dst
->nr_samples
, bind
)) {
660 /* Choose the source format. */
661 src_format
= st_choose_matching_format(screen
, PIPE_BIND_SAMPLER_VIEW
,
662 format
, type
, unpack
->SwapBytes
);
667 mesa_src_format
= st_pipe_format_to_mesa_format(src_format
);
669 /* There is no reason to do this if we cannot use memcpy for the temporary
670 * source texture at least. This also takes transfer ops into account,
672 if (!_mesa_texstore_can_use_memcpy(ctx
,
673 _mesa_get_format_base_format(mesa_src_format
),
674 mesa_src_format
, format
, type
, unpack
)) {
678 /* TexSubImage only sets a single cubemap face. */
679 if (gl_target
== GL_TEXTURE_CUBE_MAP
) {
680 gl_target
= GL_TEXTURE_2D
;
683 /* Initialize the source texture description. */
684 memset(&src_templ
, 0, sizeof(src_templ
));
685 src_templ
.target
= gl_target_to_pipe(gl_target
);
686 src_templ
.format
= src_format
;
687 src_templ
.bind
= PIPE_BIND_SAMPLER_VIEW
;
688 src_templ
.usage
= PIPE_USAGE_STAGING
;
690 st_gl_texture_dims_to_pipe_dims(gl_target
, width
, height
, depth
,
691 &src_templ
.width0
, &src_templ
.height0
,
692 &src_templ
.depth0
, &src_templ
.array_size
);
694 /* Check for NPOT texture support. */
695 if (!screen
->get_param(screen
, PIPE_CAP_NPOT_TEXTURES
) &&
696 (!util_is_power_of_two(src_templ
.width0
) ||
697 !util_is_power_of_two(src_templ
.height0
) ||
698 !util_is_power_of_two(src_templ
.depth0
))) {
702 /* Create the source texture. */
703 src
= screen
->resource_create(screen
, &src_templ
);
708 /* Map source pixels. */
709 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
,
710 format
, type
, pixels
, unpack
,
713 /* This is a GL error. */
714 pipe_resource_reference(&src
, NULL
);
718 /* From now on, we need the gallium representation of dimensions. */
719 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
724 map
= pipe_transfer_map_3d(pipe
, src
, 0, PIPE_TRANSFER_WRITE
, 0, 0, 0,
725 width
, height
, depth
, &transfer
);
727 _mesa_unmap_teximage_pbo(ctx
, unpack
);
728 pipe_resource_reference(&src
, NULL
);
732 /* Upload pixels (just memcpy). */
734 const uint bytesPerRow
= width
* util_format_get_blocksize(src_format
);
737 for (slice
= 0; slice
< depth
; slice
++) {
738 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
739 /* 1D array textures.
740 * We need to convert gallium coords to GL coords.
742 GLvoid
*src
= _mesa_image_address3d(unpack
, pixels
,
743 width
, depth
, format
,
745 memcpy(map
, src
, bytesPerRow
);
748 ubyte
*slice_map
= map
;
750 for (row
= 0; row
< height
; row
++) {
751 GLvoid
*src
= _mesa_image_address3d(unpack
, pixels
,
752 width
, height
, format
,
753 type
, slice
, row
, 0);
754 memcpy(slice_map
, src
, bytesPerRow
);
755 slice_map
+= transfer
->stride
;
758 map
+= transfer
->layer_stride
;
762 pipe_transfer_unmap(pipe
, transfer
);
763 _mesa_unmap_teximage_pbo(ctx
, unpack
);
766 blit
.src
.resource
= src
;
768 blit
.src
.format
= src_format
;
769 blit
.dst
.resource
= dst
;
770 blit
.dst
.level
= stObj
->pt
!= stImage
->pt
? 0 : texImage
->Level
;
771 blit
.dst
.format
= dst_format
;
772 blit
.src
.box
.x
= blit
.src
.box
.y
= blit
.src
.box
.z
= 0;
773 blit
.dst
.box
.x
= xoffset
;
774 blit
.dst
.box
.y
= yoffset
;
775 blit
.dst
.box
.z
= zoffset
+ texImage
->Face
;
776 blit
.src
.box
.width
= blit
.dst
.box
.width
= width
;
777 blit
.src
.box
.height
= blit
.dst
.box
.height
= height
;
778 blit
.src
.box
.depth
= blit
.dst
.box
.depth
= depth
;
779 blit
.mask
= st_get_blit_mask(format
, texImage
->_BaseFormat
);
780 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
781 blit
.scissor_enable
= FALSE
;
783 st
->pipe
->blit(st
->pipe
, &blit
);
785 pipe_resource_reference(&src
, NULL
);
789 _mesa_store_texsubimage(ctx
, dims
, texImage
, xoffset
, yoffset
, zoffset
,
790 width
, height
, depth
, format
, type
, pixels
,
795 st_TexImage(struct gl_context
* ctx
, GLuint dims
,
796 struct gl_texture_image
*texImage
,
797 GLenum format
, GLenum type
, const void *pixels
,
798 const struct gl_pixelstore_attrib
*unpack
)
800 assert(dims
== 1 || dims
== 2 || dims
== 3);
802 prep_teximage(ctx
, texImage
, format
, type
);
804 if (texImage
->Width
== 0 || texImage
->Height
== 0 || texImage
->Depth
== 0)
807 /* allocate storage for texture data */
808 if (!ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
)) {
809 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
813 st_TexSubImage(ctx
, dims
, texImage
, 0, 0, 0,
814 texImage
->Width
, texImage
->Height
, texImage
->Depth
,
815 format
, type
, pixels
, unpack
);
820 st_CompressedTexImage(struct gl_context
*ctx
, GLuint dims
,
821 struct gl_texture_image
*texImage
,
822 GLsizei imageSize
, const GLvoid
*data
)
824 prep_teximage(ctx
, texImage
, GL_NONE
, GL_NONE
);
825 _mesa_store_compressed_teximage(ctx
, dims
, texImage
, imageSize
, data
);
832 * Called via ctx->Driver.GetTexImage()
834 * This uses a blit to copy the texture to a texture format which matches
835 * the format and type combo and then a fast read-back is done using memcpy.
836 * We can do arbitrary X/Y/Z/W/0/1 swizzling here as long as there is
837 * a format which matches the swizzling.
839 * If such a format isn't available, it falls back to _mesa_get_teximage.
841 * NOTE: Drivers usually do a blit to convert between tiled and linear
842 * texture layouts during texture uploads/downloads, so the blit
843 * we do here should be free in such cases.
846 st_GetTexImage(struct gl_context
* ctx
,
847 GLenum format
, GLenum type
, GLvoid
* pixels
,
848 struct gl_texture_image
*texImage
)
850 struct st_context
*st
= st_context(ctx
);
851 struct pipe_context
*pipe
= st
->pipe
;
852 struct pipe_screen
*screen
= pipe
->screen
;
853 GLuint width
= texImage
->Width
;
854 GLuint height
= texImage
->Height
;
855 GLuint depth
= texImage
->Depth
;
856 struct st_texture_image
*stImage
= st_texture_image(texImage
);
857 struct pipe_resource
*src
= st_texture_object(texImage
->TexObject
)->pt
;
858 struct pipe_resource
*dst
= NULL
;
859 struct pipe_resource dst_templ
;
860 enum pipe_format dst_format
, src_format
;
861 gl_format mesa_format
;
862 GLenum gl_target
= texImage
->TexObject
->Target
;
863 enum pipe_texture_target pipe_target
;
864 struct pipe_blit_info blit
;
865 unsigned bind
= PIPE_BIND_TRANSFER_READ
;
866 struct pipe_transfer
*tex_xfer
;
868 boolean done
= FALSE
;
870 if (!st
->prefer_blit_based_texture_transfer
) {
874 if (!stImage
->pt
|| !src
) {
878 /* XXX Fallback to _mesa_get_teximage for depth-stencil formats
879 * due to an incomplete stencil blit implementation in some drivers. */
880 if (format
== GL_DEPTH_STENCIL
) {
884 /* If the base internal format and the texture format don't match, we have
885 * to fall back to _mesa_get_teximage. */
886 if (texImage
->_BaseFormat
!=
887 _mesa_get_format_base_format(texImage
->TexFormat
)) {
891 /* See if the texture format already matches the format and type,
892 * in which case the memcpy-based fast path will be used. */
893 if (_mesa_format_matches_format_and_type(texImage
->TexFormat
, format
,
894 type
, ctx
->Pack
.SwapBytes
)) {
898 /* Convert the source format to what is expected by GetTexImage
899 * and see if it's supported.
901 * This only applies to glGetTexImage:
902 * - Luminance must be returned as (L,0,0,1).
903 * - Luminance alpha must be returned as (L,0,0,A).
904 * - Intensity must be returned as (I,0,0,1)
906 src_format
= util_format_linear(src
->format
);
907 src_format
= util_format_luminance_to_red(src_format
);
908 src_format
= util_format_intensity_to_red(src_format
);
911 !screen
->is_format_supported(screen
, src_format
, src
->target
,
913 PIPE_BIND_SAMPLER_VIEW
)) {
917 if (format
== GL_DEPTH_COMPONENT
|| format
== GL_DEPTH_STENCIL
)
918 bind
|= PIPE_BIND_DEPTH_STENCIL
;
920 bind
|= PIPE_BIND_RENDER_TARGET
;
922 /* GetTexImage only returns a single face for cubemaps. */
923 if (gl_target
== GL_TEXTURE_CUBE_MAP
) {
924 gl_target
= GL_TEXTURE_2D
;
926 pipe_target
= gl_target_to_pipe(gl_target
);
928 /* Choose the destination format by finding the best match
929 * for the format+type combo. */
930 dst_format
= st_choose_matching_format(screen
, bind
, format
, type
,
931 ctx
->Pack
.SwapBytes
);
933 if (dst_format
== PIPE_FORMAT_NONE
) {
936 /* Fall back to _mesa_get_teximage except for compressed formats,
937 * where decompression with a blit is always preferred. */
938 if (!util_format_is_compressed(src
->format
)) {
942 /* Set the appropriate format for the decompressed texture.
943 * Luminance and sRGB formats shouldn't appear here.*/
944 switch (src_format
) {
945 case PIPE_FORMAT_DXT1_RGB
:
946 case PIPE_FORMAT_DXT1_RGBA
:
947 case PIPE_FORMAT_DXT3_RGBA
:
948 case PIPE_FORMAT_DXT5_RGBA
:
949 case PIPE_FORMAT_RGTC1_UNORM
:
950 case PIPE_FORMAT_RGTC2_UNORM
:
951 case PIPE_FORMAT_ETC1_RGB8
:
952 dst_glformat
= GL_RGBA8
;
954 case PIPE_FORMAT_RGTC1_SNORM
:
955 case PIPE_FORMAT_RGTC2_SNORM
:
956 if (!ctx
->Extensions
.EXT_texture_snorm
)
958 dst_glformat
= GL_RGBA8_SNORM
;
960 /* TODO: for BPTC_*FLOAT, set RGBA32F and check for ARB_texture_float */
966 dst_format
= st_choose_format(st
, dst_glformat
, format
, type
,
967 pipe_target
, 0, bind
, FALSE
);
969 if (dst_format
== PIPE_FORMAT_NONE
) {
970 /* unable to get an rgba format!?! */
975 /* create the destination texture */
976 memset(&dst_templ
, 0, sizeof(dst_templ
));
977 dst_templ
.target
= pipe_target
;
978 dst_templ
.format
= dst_format
;
979 dst_templ
.bind
= bind
;
980 dst_templ
.usage
= PIPE_USAGE_STAGING
;
982 st_gl_texture_dims_to_pipe_dims(gl_target
, width
, height
, depth
,
983 &dst_templ
.width0
, &dst_templ
.height0
,
984 &dst_templ
.depth0
, &dst_templ
.array_size
);
986 dst
= screen
->resource_create(screen
, &dst_templ
);
991 /* From now on, we need the gallium representation of dimensions. */
992 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
997 blit
.src
.resource
= src
;
998 blit
.src
.level
= texImage
->Level
;
999 blit
.src
.format
= src_format
;
1000 blit
.dst
.resource
= dst
;
1002 blit
.dst
.format
= dst
->format
;
1003 blit
.src
.box
.x
= blit
.dst
.box
.x
= 0;
1004 blit
.src
.box
.y
= blit
.dst
.box
.y
= 0;
1005 blit
.src
.box
.z
= texImage
->Face
;
1007 blit
.src
.box
.width
= blit
.dst
.box
.width
= width
;
1008 blit
.src
.box
.height
= blit
.dst
.box
.height
= height
;
1009 blit
.src
.box
.depth
= blit
.dst
.box
.depth
= depth
;
1010 blit
.mask
= st_get_blit_mask(texImage
->_BaseFormat
, format
);
1011 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
1012 blit
.scissor_enable
= FALSE
;
1014 /* blit/render/decompress */
1015 st
->pipe
->blit(st
->pipe
, &blit
);
1017 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
1019 map
= pipe_transfer_map_3d(pipe
, dst
, 0, PIPE_TRANSFER_READ
,
1020 0, 0, 0, width
, height
, depth
, &tex_xfer
);
1025 mesa_format
= st_pipe_format_to_mesa_format(dst_format
);
1027 /* copy/pack data into user buffer */
1028 if (_mesa_format_matches_format_and_type(mesa_format
, format
, type
,
1029 ctx
->Pack
.SwapBytes
)) {
1031 const uint bytesPerRow
= width
* util_format_get_blocksize(dst_format
);
1034 for (slice
= 0; slice
< depth
; slice
++) {
1035 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
1036 /* 1D array textures.
1037 * We need to convert gallium coords to GL coords.
1039 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1040 width
, depth
, format
,
1042 memcpy(dest
, map
, bytesPerRow
);
1045 ubyte
*slice_map
= map
;
1047 for (row
= 0; row
< height
; row
++) {
1048 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1049 width
, height
, format
,
1050 type
, slice
, row
, 0);
1051 memcpy(dest
, slice_map
, bytesPerRow
);
1052 slice_map
+= tex_xfer
->stride
;
1055 map
+= tex_xfer
->layer_stride
;
1059 /* format translation via floats */
1063 assert(util_format_is_compressed(src
->format
));
1065 rgba
= malloc(width
* 4 * sizeof(GLfloat
));
1070 if (ST_DEBUG
& DEBUG_FALLBACK
)
1071 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
1073 for (slice
= 0; slice
< depth
; slice
++) {
1074 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
1075 /* 1D array textures.
1076 * We need to convert gallium coords to GL coords.
1078 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1079 width
, depth
, format
,
1082 /* get float[4] rgba row from surface */
1083 pipe_get_tile_rgba_format(tex_xfer
, map
, 0, 0, width
, 1,
1086 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
1087 type
, dest
, &ctx
->Pack
, 0);
1090 for (row
= 0; row
< height
; row
++) {
1091 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1092 width
, height
, format
,
1093 type
, slice
, row
, 0);
1095 /* get float[4] rgba row from surface */
1096 pipe_get_tile_rgba_format(tex_xfer
, map
, 0, row
, width
, 1,
1099 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
1100 type
, dest
, &ctx
->Pack
, 0);
1103 map
+= tex_xfer
->layer_stride
;
1112 pipe_transfer_unmap(pipe
, tex_xfer
);
1114 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
1115 pipe_resource_reference(&dst
, NULL
);
1119 _mesa_get_teximage(ctx
, format
, type
, pixels
, texImage
);
1125 * Do a CopyTexSubImage operation using a read transfer from the source,
1126 * a write transfer to the destination and get_tile()/put_tile() to access
1127 * the pixels/texels.
1129 * Note: srcY=0=TOP of renderbuffer
1132 fallback_copy_texsubimage(struct gl_context
*ctx
,
1133 struct st_renderbuffer
*strb
,
1134 struct st_texture_image
*stImage
,
1136 GLint destX
, GLint destY
, GLint destZ
,
1137 GLint srcX
, GLint srcY
,
1138 GLsizei width
, GLsizei height
)
1140 struct st_context
*st
= st_context(ctx
);
1141 struct pipe_context
*pipe
= st
->pipe
;
1142 struct pipe_transfer
*src_trans
;
1144 enum pipe_transfer_usage transfer_usage
;
1146 unsigned dst_width
= width
;
1147 unsigned dst_height
= height
;
1148 unsigned dst_depth
= 1;
1150 if (ST_DEBUG
& DEBUG_FALLBACK
)
1151 debug_printf("%s: fallback processing\n", __FUNCTION__
);
1153 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1154 srcY
= strb
->Base
.Height
- srcY
- height
;
1157 if (stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
) {
1158 /* Move y/height to z/depth for 1D array textures. */
1161 dst_depth
= dst_height
;
1165 map
= pipe_transfer_map(pipe
,
1168 strb
->rtt_face
+ strb
->rtt_slice
,
1171 width
, height
, &src_trans
);
1173 if ((baseFormat
== GL_DEPTH_COMPONENT
||
1174 baseFormat
== GL_DEPTH_STENCIL
) &&
1175 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1176 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1178 transfer_usage
= PIPE_TRANSFER_WRITE
;
1180 texDest
= st_texture_image_map(st
, stImage
, transfer_usage
,
1181 destX
, destY
, destZ
,
1182 dst_width
, dst_height
, dst_depth
);
1184 if (baseFormat
== GL_DEPTH_COMPONENT
||
1185 baseFormat
== GL_DEPTH_STENCIL
) {
1186 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1187 ctx
->Pixel
.DepthBias
!= 0.0F
);
1191 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1192 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1201 data
= malloc(width
* sizeof(uint
));
1204 /* To avoid a large temp memory allocation, do copy row by row */
1205 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1206 pipe_get_tile_z(src_trans
, map
, 0, srcY
, width
, 1, data
);
1208 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1211 if (stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
) {
1212 pipe_put_tile_z(stImage
->transfer
,
1213 texDest
+ row
*stImage
->transfer
->layer_stride
,
1214 0, 0, width
, 1, data
);
1217 pipe_put_tile_z(stImage
->transfer
, texDest
, 0, row
, width
, 1,
1223 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexSubImage()");
1231 malloc(width
* height
* 4 * sizeof(GLfloat
));
1233 if (tempSrc
&& texDest
) {
1234 const GLint dims
= 2;
1236 struct gl_texture_image
*texImage
= &stImage
->base
;
1237 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1239 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1240 unpack
.Invert
= GL_TRUE
;
1243 if (stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
) {
1244 dstRowStride
= stImage
->transfer
->layer_stride
;
1247 dstRowStride
= stImage
->transfer
->stride
;
1250 /* get float/RGBA image from framebuffer */
1251 /* XXX this usually involves a lot of int/float conversion.
1252 * try to avoid that someday.
1254 pipe_get_tile_rgba_format(src_trans
, map
, 0, 0, width
, height
,
1255 util_format_linear(strb
->texture
->format
),
1258 /* Store into texture memory.
1259 * Note that this does some special things such as pixel transfer
1260 * ops and format conversion. In particular, if the dest tex format
1261 * is actually RGBA but the user created the texture as GL_RGB we
1262 * need to fill-in/override the alpha channel with 1.0.
1264 _mesa_texstore(ctx
, dims
,
1265 texImage
->_BaseFormat
,
1266 texImage
->TexFormat
,
1270 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1274 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1280 st_texture_image_unmap(st
, stImage
);
1281 pipe
->transfer_unmap(pipe
, src_trans
);
1286 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1287 * Note that the region to copy has already been clipped so we know we
1288 * won't read from outside the source renderbuffer's bounds.
1290 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1293 st_CopyTexSubImage(struct gl_context
*ctx
, GLuint dims
,
1294 struct gl_texture_image
*texImage
,
1295 GLint destX
, GLint destY
, GLint destZ
,
1296 struct gl_renderbuffer
*rb
,
1297 GLint srcX
, GLint srcY
, GLsizei width
, GLsizei height
)
1299 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1300 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
1301 struct st_renderbuffer
*strb
= st_renderbuffer(rb
);
1302 struct st_context
*st
= st_context(ctx
);
1303 struct pipe_context
*pipe
= st
->pipe
;
1304 struct pipe_screen
*screen
= pipe
->screen
;
1305 struct pipe_blit_info blit
;
1306 enum pipe_format dst_format
;
1307 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1309 GLint srcY0
, srcY1
, yStep
;
1311 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1312 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1316 if (_mesa_texstore_needs_transfer_ops(ctx
, texImage
->_BaseFormat
,
1317 texImage
->TexFormat
)) {
1321 /* The base internal format must match the mesa format, so make sure
1322 * e.g. an RGB internal format is really allocated as RGB and not as RGBA.
1324 if (texImage
->_BaseFormat
!=
1325 _mesa_get_format_base_format(texImage
->TexFormat
) ||
1326 rb
->_BaseFormat
!= _mesa_get_format_base_format(rb
->Format
)) {
1330 /* Choose the destination format to match the TexImage behavior. */
1331 dst_format
= util_format_linear(stImage
->pt
->format
);
1332 dst_format
= util_format_luminance_to_red(dst_format
);
1333 dst_format
= util_format_intensity_to_red(dst_format
);
1335 /* See if the destination format is supported. */
1336 if (texImage
->_BaseFormat
== GL_DEPTH_STENCIL
||
1337 texImage
->_BaseFormat
== GL_DEPTH_COMPONENT
) {
1338 bind
= PIPE_BIND_DEPTH_STENCIL
;
1341 bind
= PIPE_BIND_RENDER_TARGET
;
1345 !screen
->is_format_supported(screen
, dst_format
, stImage
->pt
->target
,
1346 stImage
->pt
->nr_samples
, bind
)) {
1350 /* Y flipping for the main framebuffer. */
1352 srcY1
= strb
->Base
.Height
- srcY
- height
;
1353 srcY0
= srcY1
+ height
;
1358 srcY1
= srcY0
+ height
;
1362 /* Blit the texture.
1363 * This supports flipping, format conversions, and downsampling.
1365 memset(&blit
, 0, sizeof(blit
));
1366 blit
.src
.resource
= strb
->texture
;
1367 blit
.src
.format
= util_format_linear(strb
->surface
->format
);
1368 blit
.src
.level
= strb
->surface
->u
.tex
.level
;
1369 blit
.src
.box
.x
= srcX
;
1370 blit
.src
.box
.y
= srcY0
;
1371 blit
.src
.box
.z
= strb
->surface
->u
.tex
.first_layer
;
1372 blit
.src
.box
.width
= width
;
1373 blit
.src
.box
.height
= srcY1
- srcY0
;
1374 blit
.src
.box
.depth
= 1;
1375 blit
.dst
.resource
= stImage
->pt
;
1376 blit
.dst
.format
= dst_format
;
1377 blit
.dst
.level
= stObj
->pt
!= stImage
->pt
? 0 : texImage
->Level
;
1378 blit
.dst
.box
.x
= destX
;
1379 blit
.dst
.box
.y
= destY
;
1380 blit
.dst
.box
.z
= stImage
->base
.Face
+ destZ
;
1381 blit
.dst
.box
.width
= width
;
1382 blit
.dst
.box
.height
= height
;
1383 blit
.dst
.box
.depth
= 1;
1384 blit
.mask
= st_get_blit_mask(rb
->_BaseFormat
, texImage
->_BaseFormat
);
1385 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
1387 /* 1D array textures need special treatment.
1388 * Blit rows from the source to layers in the destination. */
1389 if (texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
) {
1392 for (y
= srcY0
, layer
= 0; layer
< height
; y
+= yStep
, layer
++) {
1394 blit
.src
.box
.height
= 1;
1396 blit
.dst
.box
.height
= 1;
1397 blit
.dst
.box
.z
= destY
+ layer
;
1399 pipe
->blit(pipe
, &blit
);
1403 /* All the other texture targets. */
1404 pipe
->blit(pipe
, &blit
);
1409 /* software fallback */
1410 fallback_copy_texsubimage(ctx
,
1411 strb
, stImage
, texImage
->_BaseFormat
,
1412 destX
, destY
, destZ
,
1413 srcX
, srcY
, width
, height
);
1418 * Copy image data from stImage into the texture object 'stObj' at level
1422 copy_image_data_to_texture(struct st_context
*st
,
1423 struct st_texture_object
*stObj
,
1425 struct st_texture_image
*stImage
)
1429 const struct gl_texture_image
*dstImage
=
1430 stObj
->base
.Image
[stImage
->base
.Face
][dstLevel
];
1432 assert(dstImage
->Width
== stImage
->base
.Width
);
1433 assert(dstImage
->Height
== stImage
->base
.Height
);
1434 assert(dstImage
->Depth
== stImage
->base
.Depth
);
1438 /* Copy potentially with the blitter:
1441 if (stImage
->pt
->last_level
== 0)
1444 src_level
= stImage
->base
.Level
;
1446 assert(src_level
<= stImage
->pt
->last_level
);
1447 assert(u_minify(stImage
->pt
->width0
, src_level
) == stImage
->base
.Width
);
1448 assert(stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
||
1449 u_minify(stImage
->pt
->height0
, src_level
) == stImage
->base
.Height
);
1450 assert(stImage
->pt
->target
== PIPE_TEXTURE_2D_ARRAY
||
1451 stImage
->pt
->target
== PIPE_TEXTURE_CUBE_ARRAY
||
1452 u_minify(stImage
->pt
->depth0
, src_level
) == stImage
->base
.Depth
);
1454 st_texture_image_copy(st
->pipe
,
1455 stObj
->pt
, dstLevel
, /* dest texture, level */
1456 stImage
->pt
, src_level
, /* src texture, level */
1457 stImage
->base
.Face
);
1459 pipe_resource_reference(&stImage
->pt
, NULL
);
1461 else if (stImage
->TexData
) {
1462 /* Copy from malloc'd memory */
1463 /* XXX this should be re-examined/tested with a compressed format */
1464 GLuint blockSize
= util_format_get_blocksize(stObj
->pt
->format
);
1465 GLuint srcRowStride
= stImage
->base
.Width
* blockSize
;
1466 GLuint srcSliceStride
= stImage
->base
.Height
* srcRowStride
;
1467 st_texture_image_data(st
,
1474 _mesa_align_free(stImage
->TexData
);
1475 stImage
->TexData
= NULL
;
1478 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1483 * Called during state validation. When this function is finished,
1484 * the texture object should be ready for rendering.
1485 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1488 st_finalize_texture(struct gl_context
*ctx
,
1489 struct pipe_context
*pipe
,
1490 struct gl_texture_object
*tObj
)
1492 struct st_context
*st
= st_context(ctx
);
1493 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1494 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1496 struct st_texture_image
*firstImage
;
1497 enum pipe_format firstImageFormat
;
1498 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
, ptNumSamples
;
1500 if (_mesa_is_texture_complete(tObj
, &tObj
->Sampler
)) {
1501 /* The texture is complete and we know exactly how many mipmap levels
1502 * are present/needed. This is conditional because we may be called
1503 * from the st_generate_mipmap() function when the texture object is
1504 * incomplete. In that case, we'll have set stObj->lastLevel before
1507 if (stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
1508 stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
)
1509 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1511 stObj
->lastLevel
= stObj
->base
._MaxLevel
;
1514 if (tObj
->Target
== GL_TEXTURE_BUFFER
) {
1515 struct st_buffer_object
*st_obj
= st_buffer_object(tObj
->BufferObject
);
1517 if (st_obj
->buffer
!= stObj
->pt
) {
1518 pipe_resource_reference(&stObj
->pt
, st_obj
->buffer
);
1519 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
1520 stObj
->width0
= stObj
->pt
->width0
/ _mesa_get_format_bytes(tObj
->_BufferObjectFormat
);
1528 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1531 /* If both firstImage and stObj point to a texture which can contain
1532 * all active images, favour firstImage. Note that because of the
1533 * completeness requirement, we know that the image dimensions
1536 if (firstImage
->pt
&&
1537 firstImage
->pt
!= stObj
->pt
&&
1538 (!stObj
->pt
|| firstImage
->pt
->last_level
>= stObj
->pt
->last_level
)) {
1539 pipe_resource_reference(&stObj
->pt
, firstImage
->pt
);
1540 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
1543 /* Find gallium format for the Mesa texture */
1544 firstImageFormat
= st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1546 /* Find size of level=0 Gallium mipmap image, plus number of texture layers */
1548 GLuint width
, height
, depth
;
1549 if (!guess_base_level_size(stObj
->base
.Target
,
1550 firstImage
->base
.Width2
,
1551 firstImage
->base
.Height2
,
1552 firstImage
->base
.Depth2
,
1553 firstImage
->base
.Level
,
1554 &width
, &height
, &depth
)) {
1555 width
= stObj
->width0
;
1556 height
= stObj
->height0
;
1557 depth
= stObj
->depth0
;
1559 /* convert GL dims to Gallium dims */
1560 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
, width
, height
, depth
,
1561 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1562 ptNumSamples
= firstImage
->base
.NumSamples
;
1565 /* If we already have a gallium texture, check that it matches the texture
1566 * object's format, target, size, num_levels, etc.
1569 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1570 !st_sampler_compat_formats(stObj
->pt
->format
, firstImageFormat
) ||
1571 stObj
->pt
->last_level
< stObj
->lastLevel
||
1572 stObj
->pt
->width0
!= ptWidth
||
1573 stObj
->pt
->height0
!= ptHeight
||
1574 stObj
->pt
->depth0
!= ptDepth
||
1575 stObj
->pt
->nr_samples
!= ptNumSamples
||
1576 stObj
->pt
->array_size
!= ptLayers
)
1578 /* The gallium texture does not match the Mesa texture so delete the
1579 * gallium texture now. We'll make a new one below.
1581 pipe_resource_reference(&stObj
->pt
, NULL
);
1582 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
1583 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1587 /* May need to create a new gallium texture:
1590 GLuint bindings
= default_bindings(st
, firstImageFormat
);
1592 stObj
->pt
= st_texture_create(st
,
1593 gl_target_to_pipe(stObj
->base
.Target
),
1599 ptLayers
, ptNumSamples
,
1603 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1608 /* Pull in any images not in the object's texture:
1610 for (face
= 0; face
< nr_faces
; face
++) {
1612 for (level
= stObj
->base
.BaseLevel
; level
<= stObj
->lastLevel
; level
++) {
1613 struct st_texture_image
*stImage
=
1614 st_texture_image(stObj
->base
.Image
[face
][level
]);
1616 /* Need to import images in main memory or held in other textures.
1618 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1620 (stImage
->base
.Width
== u_minify(stObj
->width0
, level
) &&
1621 stImage
->base
.Height
== u_minify(stObj
->height0
, level
) &&
1622 stImage
->base
.Depth
== u_minify(stObj
->depth0
, level
))) {
1623 /* src image fits expected dest mipmap level size */
1624 copy_image_data_to_texture(st
, stObj
, level
, stImage
);
1635 * Called via ctx->Driver.AllocTextureStorage() to allocate texture memory
1636 * for a whole mipmap stack.
1639 st_AllocTextureStorage(struct gl_context
*ctx
,
1640 struct gl_texture_object
*texObj
,
1641 GLsizei levels
, GLsizei width
,
1642 GLsizei height
, GLsizei depth
)
1644 const GLuint numFaces
= _mesa_num_tex_faces(texObj
->Target
);
1645 struct gl_texture_image
*texImage
= texObj
->Image
[0][0];
1646 struct st_context
*st
= st_context(ctx
);
1647 struct st_texture_object
*stObj
= st_texture_object(texObj
);
1648 struct pipe_screen
*screen
= st
->pipe
->screen
;
1649 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
, bindings
;
1650 enum pipe_format fmt
;
1652 int num_samples
= texImage
->NumSamples
;
1656 /* Save the level=0 dimensions */
1657 stObj
->width0
= width
;
1658 stObj
->height0
= height
;
1659 stObj
->depth0
= depth
;
1660 stObj
->lastLevel
= levels
- 1;
1662 fmt
= st_mesa_format_to_pipe_format(texImage
->TexFormat
);
1664 bindings
= default_bindings(st
, fmt
);
1666 /* Raise the sample count if the requested one is unsupported. */
1667 if (num_samples
> 1) {
1668 boolean found
= FALSE
;
1670 for (; num_samples
<= ctx
->Const
.MaxSamples
; num_samples
++) {
1671 if (screen
->is_format_supported(screen
, fmt
, PIPE_TEXTURE_2D
,
1673 PIPE_BIND_SAMPLER_VIEW
)) {
1674 /* Update the sample count in gl_texture_image as well. */
1675 texImage
->NumSamples
= num_samples
;
1686 st_gl_texture_dims_to_pipe_dims(texObj
->Target
,
1687 width
, height
, depth
,
1688 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1690 stObj
->pt
= st_texture_create(st
,
1691 gl_target_to_pipe(texObj
->Target
),
1697 ptLayers
, num_samples
,
1702 /* Set image resource pointers */
1703 for (level
= 0; level
< levels
; level
++) {
1705 for (face
= 0; face
< numFaces
; face
++) {
1706 struct st_texture_image
*stImage
=
1707 st_texture_image(texObj
->Image
[face
][level
]);
1708 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1717 st_TestProxyTexImage(struct gl_context
*ctx
, GLenum target
,
1718 GLint level
, gl_format format
,
1719 GLint width
, GLint height
,
1720 GLint depth
, GLint border
)
1722 struct st_context
*st
= st_context(ctx
);
1723 struct pipe_context
*pipe
= st
->pipe
;
1725 if (width
== 0 || height
== 0 || depth
== 0) {
1726 /* zero-sized images are legal, and always fit! */
1730 if (pipe
->screen
->can_create_resource
) {
1731 /* Ask the gallium driver if the texture is too large */
1732 struct gl_texture_object
*texObj
=
1733 _mesa_get_current_tex_object(ctx
, target
);
1734 struct pipe_resource pt
;
1736 /* Setup the pipe_resource object
1738 memset(&pt
, 0, sizeof(pt
));
1740 pt
.target
= gl_target_to_pipe(target
);
1741 pt
.format
= st_mesa_format_to_pipe_format(format
);
1743 st_gl_texture_dims_to_pipe_dims(target
,
1744 width
, height
, depth
,
1745 &pt
.width0
, &pt
.height0
,
1746 &pt
.depth0
, &pt
.array_size
);
1748 if (level
== 0 && (texObj
->Sampler
.MinFilter
== GL_LINEAR
||
1749 texObj
->Sampler
.MinFilter
== GL_NEAREST
)) {
1750 /* assume just one mipmap level */
1754 /* assume a full set of mipmaps */
1755 pt
.last_level
= _mesa_logbase2(MAX3(width
, height
, depth
));
1758 return pipe
->screen
->can_create_resource(pipe
->screen
, &pt
);
1761 /* Use core Mesa fallback */
1762 return _mesa_test_proxy_teximage(ctx
, target
, level
, format
,
1763 width
, height
, depth
, border
);
1769 st_init_texture_functions(struct dd_function_table
*functions
)
1771 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1772 functions
->QuerySamplesForFormat
= st_QuerySamplesForFormat
;
1773 functions
->TexImage
= st_TexImage
;
1774 functions
->TexSubImage
= st_TexSubImage
;
1775 functions
->CompressedTexSubImage
= _mesa_store_compressed_texsubimage
;
1776 functions
->CopyTexSubImage
= st_CopyTexSubImage
;
1777 functions
->GenerateMipmap
= st_generate_mipmap
;
1779 functions
->GetTexImage
= st_GetTexImage
;
1781 /* compressed texture functions */
1782 functions
->CompressedTexImage
= st_CompressedTexImage
;
1783 functions
->GetCompressedTexImage
= _mesa_get_compressed_teximage
;
1785 functions
->NewTextureObject
= st_NewTextureObject
;
1786 functions
->NewTextureImage
= st_NewTextureImage
;
1787 functions
->DeleteTextureImage
= st_DeleteTextureImage
;
1788 functions
->DeleteTexture
= st_DeleteTextureObject
;
1789 functions
->AllocTextureImageBuffer
= st_AllocTextureImageBuffer
;
1790 functions
->FreeTextureImageBuffer
= st_FreeTextureImageBuffer
;
1791 functions
->MapTextureImage
= st_MapTextureImage
;
1792 functions
->UnmapTextureImage
= st_UnmapTextureImage
;
1794 /* XXX Temporary until we can query pipe's texture sizes */
1795 functions
->TestProxyTexImage
= st_TestProxyTexImage
;
1797 functions
->AllocTextureStorage
= st_AllocTextureStorage
;