1 /**************************************************************************
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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/texcompress_etc.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_format.h"
63 #include "util/u_surface.h"
64 #include "util/u_sampler.h"
65 #include "util/u_math.h"
66 #include "util/u_box.h"
68 #define DBG if (0) printf
71 enum pipe_texture_target
72 gl_target_to_pipe(GLenum target
)
76 case GL_PROXY_TEXTURE_1D
:
77 return PIPE_TEXTURE_1D
;
79 case GL_PROXY_TEXTURE_2D
:
80 case GL_TEXTURE_EXTERNAL_OES
:
81 case GL_TEXTURE_2D_MULTISAMPLE
:
82 case GL_PROXY_TEXTURE_2D_MULTISAMPLE
:
83 return PIPE_TEXTURE_2D
;
84 case GL_TEXTURE_RECTANGLE_NV
:
85 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
86 return PIPE_TEXTURE_RECT
;
88 case GL_PROXY_TEXTURE_3D
:
89 return PIPE_TEXTURE_3D
;
90 case GL_TEXTURE_CUBE_MAP_ARB
:
91 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
92 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
93 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
94 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
95 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
96 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
97 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
98 return PIPE_TEXTURE_CUBE
;
99 case GL_TEXTURE_1D_ARRAY_EXT
:
100 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
101 return PIPE_TEXTURE_1D_ARRAY
;
102 case GL_TEXTURE_2D_ARRAY_EXT
:
103 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
104 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY
:
105 case GL_PROXY_TEXTURE_2D_MULTISAMPLE_ARRAY
:
106 return PIPE_TEXTURE_2D_ARRAY
;
107 case GL_TEXTURE_BUFFER
:
109 case GL_TEXTURE_CUBE_MAP_ARRAY
:
110 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
111 return PIPE_TEXTURE_CUBE_ARRAY
;
119 /** called via ctx->Driver.NewTextureImage() */
120 static struct gl_texture_image
*
121 st_NewTextureImage(struct gl_context
* ctx
)
123 DBG("%s\n", __FUNCTION__
);
125 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
129 /** called via ctx->Driver.DeleteTextureImage() */
131 st_DeleteTextureImage(struct gl_context
* ctx
, struct gl_texture_image
*img
)
133 /* nothing special (yet) for st_texture_image */
134 _mesa_delete_texture_image(ctx
, img
);
138 /** called via ctx->Driver.NewTextureObject() */
139 static struct gl_texture_object
*
140 st_NewTextureObject(struct gl_context
* ctx
, GLuint name
, GLenum target
)
142 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
144 DBG("%s\n", __FUNCTION__
);
145 _mesa_initialize_texture_object(ctx
, &obj
->base
, name
, target
);
150 /** called via ctx->Driver.DeleteTextureObject() */
152 st_DeleteTextureObject(struct gl_context
*ctx
,
153 struct gl_texture_object
*texObj
)
155 struct st_texture_object
*stObj
= st_texture_object(texObj
);
157 pipe_resource_reference(&stObj
->pt
, NULL
);
158 st_texture_release_all_sampler_views(stObj
);
159 st_texture_free_sampler_views(stObj
);
160 _mesa_delete_texture_object(ctx
, texObj
);
164 /** called via ctx->Driver.FreeTextureImageBuffer() */
166 st_FreeTextureImageBuffer(struct gl_context
*ctx
,
167 struct gl_texture_image
*texImage
)
169 struct st_texture_image
*stImage
= st_texture_image(texImage
);
171 DBG("%s\n", __FUNCTION__
);
174 pipe_resource_reference(&stImage
->pt
, NULL
);
177 _mesa_align_free(stImage
->TexData
);
178 stImage
->TexData
= NULL
;
180 free(stImage
->transfer
);
181 stImage
->transfer
= NULL
;
182 stImage
->num_transfers
= 0;
186 /** called via ctx->Driver.MapTextureImage() */
188 st_MapTextureImage(struct gl_context
*ctx
,
189 struct gl_texture_image
*texImage
,
190 GLuint slice
, GLuint x
, GLuint y
, GLuint w
, GLuint h
,
192 GLubyte
**mapOut
, GLint
*rowStrideOut
)
194 struct st_context
*st
= st_context(ctx
);
195 struct st_texture_image
*stImage
= st_texture_image(texImage
);
198 struct pipe_transfer
*transfer
;
201 if (mode
& GL_MAP_READ_BIT
)
202 pipeMode
|= PIPE_TRANSFER_READ
;
203 if (mode
& GL_MAP_WRITE_BIT
)
204 pipeMode
|= PIPE_TRANSFER_WRITE
;
205 if (mode
& GL_MAP_INVALIDATE_RANGE_BIT
)
206 pipeMode
|= PIPE_TRANSFER_DISCARD_RANGE
;
208 map
= st_texture_image_map(st
, stImage
, pipeMode
, x
, y
, slice
, w
, h
, 1,
211 if (_mesa_is_format_etc2(texImage
->TexFormat
) ||
212 (texImage
->TexFormat
== MESA_FORMAT_ETC1_RGB8
&& !st
->has_etc1
)) {
213 /* ETC isn't supported by gallium and it's represented
214 * by uncompressed formats. Only write transfers with precompressed
215 * data are supported by ES3, which makes this really simple.
217 * Just create a temporary storage where the ETC texture will
218 * be stored. It will be decompressed in the Unmap function.
220 unsigned z
= transfer
->box
.z
;
221 struct st_texture_image_transfer
*itransfer
= &stImage
->transfer
[z
];
223 itransfer
->temp_data
=
224 malloc(_mesa_format_image_size(texImage
->TexFormat
, w
, h
, 1));
225 itransfer
->temp_stride
=
226 _mesa_format_row_stride(texImage
->TexFormat
, w
);
227 itransfer
->map
= map
;
229 *mapOut
= itransfer
->temp_data
;
230 *rowStrideOut
= itransfer
->temp_stride
;
233 /* supported mapping */
235 *rowStrideOut
= transfer
->stride
;
245 /** called via ctx->Driver.UnmapTextureImage() */
247 st_UnmapTextureImage(struct gl_context
*ctx
,
248 struct gl_texture_image
*texImage
,
251 struct st_context
*st
= st_context(ctx
);
252 struct st_texture_image
*stImage
= st_texture_image(texImage
);
254 if (_mesa_is_format_etc2(texImage
->TexFormat
) ||
255 (texImage
->TexFormat
== MESA_FORMAT_ETC1_RGB8
&& !st
->has_etc1
)) {
256 /* Decompress the ETC texture to the mapped one. */
257 unsigned z
= slice
+ stImage
->base
.Face
;
258 struct st_texture_image_transfer
*itransfer
= &stImage
->transfer
[z
];
259 struct pipe_transfer
*transfer
= itransfer
->transfer
;
261 assert(z
== transfer
->box
.z
);
263 if (texImage
->TexFormat
== MESA_FORMAT_ETC1_RGB8
) {
264 _mesa_etc1_unpack_rgba8888(itransfer
->map
, transfer
->stride
,
265 itransfer
->temp_data
,
266 itransfer
->temp_stride
,
267 transfer
->box
.width
, transfer
->box
.height
);
270 _mesa_unpack_etc2_format(itransfer
->map
, transfer
->stride
,
271 itransfer
->temp_data
, itransfer
->temp_stride
,
272 transfer
->box
.width
, transfer
->box
.height
,
273 texImage
->TexFormat
);
276 free(itransfer
->temp_data
);
277 itransfer
->temp_data
= NULL
;
278 itransfer
->temp_stride
= 0;
282 st_texture_image_unmap(st
, stImage
, slice
);
287 * Return default texture resource binding bitmask for the given format.
290 default_bindings(struct st_context
*st
, enum pipe_format format
)
292 struct pipe_screen
*screen
= st
->pipe
->screen
;
293 const unsigned target
= PIPE_TEXTURE_2D
;
296 if (util_format_is_depth_or_stencil(format
))
297 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_DEPTH_STENCIL
;
299 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_RENDER_TARGET
;
301 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
305 format
= util_format_linear(format
);
307 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
310 return PIPE_BIND_SAMPLER_VIEW
;
316 * Given the size of a mipmap image, try to compute the size of the level=0
319 * Note that this isn't always accurate for odd-sized, non-POW textures.
320 * For example, if level=1 and width=40 then the level=0 width may be 80 or 81.
322 * \return GL_TRUE for success, GL_FALSE for failure
325 guess_base_level_size(GLenum target
,
326 GLuint width
, GLuint height
, GLuint depth
, GLuint level
,
327 GLuint
*width0
, GLuint
*height0
, GLuint
*depth0
)
334 /* Guess the size of the base level.
335 * Depending on the image's size, we can't always make a guess here.
339 case GL_TEXTURE_1D_ARRAY
:
344 case GL_TEXTURE_2D_ARRAY
:
345 /* We can't make a good guess here, because the base level dimensions
348 if (width
== 1 || height
== 1) {
355 case GL_TEXTURE_CUBE_MAP
:
356 case GL_TEXTURE_CUBE_MAP_ARRAY
:
362 /* We can't make a good guess here, because the base level dimensions
365 if (width
== 1 || height
== 1 || depth
== 1) {
373 case GL_TEXTURE_RECTANGLE
:
390 * Try to allocate a pipe_resource object for the given st_texture_object.
392 * We use the given st_texture_image as a clue to determine the size of the
393 * mipmap image at level=0.
395 * \return GL_TRUE for success, GL_FALSE if out of memory.
398 guess_and_alloc_texture(struct st_context
*st
,
399 struct st_texture_object
*stObj
,
400 const struct st_texture_image
*stImage
)
402 GLuint lastLevel
, width
, height
, depth
;
404 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
405 enum pipe_format fmt
;
407 DBG("%s\n", __FUNCTION__
);
411 if (!guess_base_level_size(stObj
->base
.Target
,
412 stImage
->base
.Width2
,
413 stImage
->base
.Height2
,
414 stImage
->base
.Depth2
,
416 &width
, &height
, &depth
)) {
417 /* we can't determine the image size at level=0 */
418 stObj
->width0
= stObj
->height0
= stObj
->depth0
= 0;
419 /* this is not an out of memory error */
423 /* At this point, (width x height x depth) is the expected size of
424 * the level=0 mipmap image.
427 /* Guess a reasonable value for lastLevel. With OpenGL we have no
428 * idea how many mipmap levels will be in a texture until we start
429 * to render with it. Make an educated guess here but be prepared
430 * to re-allocating a texture buffer with space for more (or fewer)
431 * mipmap levels later.
433 if ((stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
||
434 stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
435 (stObj
->base
.BaseLevel
== 0 &&
436 stObj
->base
.MaxLevel
== 0) ||
437 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
438 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
439 !stObj
->base
.GenerateMipmap
&&
440 stImage
->base
.Level
== 0) {
441 /* only alloc space for a single mipmap level */
445 /* alloc space for a full mipmap */
446 lastLevel
= _mesa_get_tex_max_num_levels(stObj
->base
.Target
,
447 width
, height
, depth
) - 1;
450 /* Save the level=0 dimensions */
451 stObj
->width0
= width
;
452 stObj
->height0
= height
;
453 stObj
->depth0
= depth
;
455 fmt
= st_mesa_format_to_pipe_format(st
, stImage
->base
.TexFormat
);
457 bindings
= default_bindings(st
, fmt
);
459 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
460 width
, height
, depth
,
461 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
463 stObj
->pt
= st_texture_create(st
,
464 gl_target_to_pipe(stObj
->base
.Target
),
473 stObj
->lastLevel
= lastLevel
;
475 DBG("%s returning %d\n", __FUNCTION__
, (stObj
->pt
!= NULL
));
477 return stObj
->pt
!= NULL
;
482 * Called via ctx->Driver.AllocTextureImageBuffer().
483 * If the texture object/buffer already has space for the indicated image,
484 * we're done. Otherwise, allocate memory for the new texture image.
487 st_AllocTextureImageBuffer(struct gl_context
*ctx
,
488 struct gl_texture_image
*texImage
)
490 struct st_context
*st
= st_context(ctx
);
491 struct st_texture_image
*stImage
= st_texture_image(texImage
);
492 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
493 const GLuint level
= texImage
->Level
;
494 GLuint width
= texImage
->Width
;
495 GLuint height
= texImage
->Height
;
496 GLuint depth
= texImage
->Depth
;
498 DBG("%s\n", __FUNCTION__
);
500 assert(!stImage
->TexData
);
501 assert(!stImage
->pt
); /* xxx this might be wrong */
503 /* Look if the parent texture object has space for this image */
505 level
<= stObj
->pt
->last_level
&&
506 st_texture_match_image(st
, stObj
->pt
, texImage
)) {
507 /* this image will fit in the existing texture object's memory */
508 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
512 /* The parent texture object does not have space for this image */
514 pipe_resource_reference(&stObj
->pt
, NULL
);
515 st_texture_release_all_sampler_views(stObj
);
517 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
518 /* Probably out of memory.
519 * Try flushing any pending rendering, then retry.
522 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
523 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
529 st_texture_match_image(st
, stObj
->pt
, texImage
)) {
530 /* The image will live in the object's mipmap memory */
531 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
536 /* Create a new, temporary texture/resource/buffer to hold this
537 * one texture image. Note that when we later access this image
538 * (either for mapping or copying) we'll want to always specify
539 * mipmap level=0, even if the image represents some other mipmap
542 enum pipe_format format
=
543 st_mesa_format_to_pipe_format(st
, texImage
->TexFormat
);
544 GLuint bindings
= default_bindings(st
, format
);
545 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
547 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
548 width
, height
, depth
,
549 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
551 stImage
->pt
= st_texture_create(st
,
552 gl_target_to_pipe(stObj
->base
.Target
),
560 return stImage
->pt
!= NULL
;
566 * Preparation prior to glTexImage. Basically check the 'surface_based'
567 * field and switch to a "normal" tex image if necessary.
570 prep_teximage(struct gl_context
*ctx
, struct gl_texture_image
*texImage
,
571 GLenum format
, GLenum type
)
573 struct gl_texture_object
*texObj
= texImage
->TexObject
;
574 struct st_texture_object
*stObj
= st_texture_object(texObj
);
576 /* switch to "normal" */
577 if (stObj
->surface_based
) {
578 const GLenum target
= texObj
->Target
;
579 const GLuint level
= texImage
->Level
;
580 mesa_format texFormat
;
582 _mesa_clear_texture_object(ctx
, texObj
);
583 pipe_resource_reference(&stObj
->pt
, NULL
);
585 /* oops, need to init this image again */
586 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
587 texImage
->InternalFormat
, format
,
590 _mesa_init_teximage_fields(ctx
, texImage
,
591 texImage
->Width
, texImage
->Height
,
592 texImage
->Depth
, texImage
->Border
,
593 texImage
->InternalFormat
, texFormat
);
595 stObj
->surface_based
= GL_FALSE
;
601 * Return a writemask for the gallium blit. The parameters can be base
602 * formats or "format" from glDrawPixels/glTexImage/glGetTexImage.
605 st_get_blit_mask(GLenum srcFormat
, GLenum dstFormat
)
608 case GL_DEPTH_STENCIL
:
610 case GL_DEPTH_STENCIL
:
612 case GL_DEPTH_COMPONENT
:
614 case GL_STENCIL_INDEX
:
621 case GL_DEPTH_COMPONENT
:
623 case GL_DEPTH_STENCIL
:
624 case GL_DEPTH_COMPONENT
:
631 case GL_STENCIL_INDEX
:
633 case GL_STENCIL_INDEX
:
641 return PIPE_MASK_RGBA
;
647 st_TexSubImage(struct gl_context
*ctx
, GLuint dims
,
648 struct gl_texture_image
*texImage
,
649 GLint xoffset
, GLint yoffset
, GLint zoffset
,
650 GLint width
, GLint height
, GLint depth
,
651 GLenum format
, GLenum type
, const void *pixels
,
652 const struct gl_pixelstore_attrib
*unpack
)
654 struct st_context
*st
= st_context(ctx
);
655 struct st_texture_image
*stImage
= st_texture_image(texImage
);
656 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
657 struct pipe_context
*pipe
= st
->pipe
;
658 struct pipe_screen
*screen
= pipe
->screen
;
659 struct pipe_resource
*dst
= stImage
->pt
;
660 struct pipe_resource
*src
= NULL
;
661 struct pipe_resource src_templ
;
662 struct pipe_transfer
*transfer
;
663 struct pipe_blit_info blit
;
664 enum pipe_format src_format
, dst_format
;
665 mesa_format mesa_src_format
;
666 GLenum gl_target
= texImage
->TexObject
->Target
;
670 assert(!_mesa_is_format_etc2(texImage
->TexFormat
) &&
671 texImage
->TexFormat
!= MESA_FORMAT_ETC1_RGB8
);
673 if (!st
->prefer_blit_based_texture_transfer
) {
681 /* XXX Fallback for depth-stencil formats due to an incomplete stencil
682 * blit implementation in some drivers. */
683 if (format
== GL_DEPTH_STENCIL
) {
687 /* If the base internal format and the texture format don't match,
688 * we can't use blit-based TexSubImage. */
689 if (texImage
->_BaseFormat
!=
690 _mesa_get_format_base_format(texImage
->TexFormat
)) {
694 /* See if the texture format already matches the format and type,
695 * in which case the memcpy-based fast path will likely be used and
696 * we don't have to blit. */
697 if (_mesa_format_matches_format_and_type(texImage
->TexFormat
, format
,
698 type
, unpack
->SwapBytes
)) {
702 if (format
== GL_DEPTH_COMPONENT
|| format
== GL_DEPTH_STENCIL
)
703 bind
= PIPE_BIND_DEPTH_STENCIL
;
705 bind
= PIPE_BIND_RENDER_TARGET
;
707 /* See if the destination format is supported.
708 * For luminance and intensity, only the red channel is stored there. */
709 dst_format
= util_format_linear(dst
->format
);
710 dst_format
= util_format_luminance_to_red(dst_format
);
711 dst_format
= util_format_intensity_to_red(dst_format
);
714 !screen
->is_format_supported(screen
, dst_format
, dst
->target
,
715 dst
->nr_samples
, bind
)) {
719 /* Choose the source format. */
720 src_format
= st_choose_matching_format(st
, PIPE_BIND_SAMPLER_VIEW
,
721 format
, type
, unpack
->SwapBytes
);
726 mesa_src_format
= st_pipe_format_to_mesa_format(src_format
);
728 /* There is no reason to do this if we cannot use memcpy for the temporary
729 * source texture at least. This also takes transfer ops into account,
731 if (!_mesa_texstore_can_use_memcpy(ctx
,
732 _mesa_get_format_base_format(mesa_src_format
),
733 mesa_src_format
, format
, type
, unpack
)) {
737 /* TexSubImage only sets a single cubemap face. */
738 if (gl_target
== GL_TEXTURE_CUBE_MAP
) {
739 gl_target
= GL_TEXTURE_2D
;
742 /* Initialize the source texture description. */
743 memset(&src_templ
, 0, sizeof(src_templ
));
744 src_templ
.target
= gl_target_to_pipe(gl_target
);
745 src_templ
.format
= src_format
;
746 src_templ
.bind
= PIPE_BIND_SAMPLER_VIEW
;
747 src_templ
.usage
= PIPE_USAGE_STAGING
;
749 st_gl_texture_dims_to_pipe_dims(gl_target
, width
, height
, depth
,
750 &src_templ
.width0
, &src_templ
.height0
,
751 &src_templ
.depth0
, &src_templ
.array_size
);
753 /* Check for NPOT texture support. */
754 if (!screen
->get_param(screen
, PIPE_CAP_NPOT_TEXTURES
) &&
755 (!util_is_power_of_two(src_templ
.width0
) ||
756 !util_is_power_of_two(src_templ
.height0
) ||
757 !util_is_power_of_two(src_templ
.depth0
))) {
761 /* Create the source texture. */
762 src
= screen
->resource_create(screen
, &src_templ
);
767 /* Map source pixels. */
768 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
,
769 format
, type
, pixels
, unpack
,
772 /* This is a GL error. */
773 pipe_resource_reference(&src
, NULL
);
777 /* From now on, we need the gallium representation of dimensions. */
778 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
785 map
= pipe_transfer_map_3d(pipe
, src
, 0, PIPE_TRANSFER_WRITE
, 0, 0, 0,
786 width
, height
, depth
, &transfer
);
788 _mesa_unmap_teximage_pbo(ctx
, unpack
);
789 pipe_resource_reference(&src
, NULL
);
793 /* Upload pixels (just memcpy). */
795 const uint bytesPerRow
= width
* util_format_get_blocksize(src_format
);
798 for (slice
= 0; slice
< (unsigned) depth
; slice
++) {
799 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
800 /* 1D array textures.
801 * We need to convert gallium coords to GL coords.
803 GLvoid
*src
= _mesa_image_address3d(unpack
, pixels
,
804 width
, depth
, format
,
806 memcpy(map
, src
, bytesPerRow
);
809 ubyte
*slice_map
= map
;
811 for (row
= 0; row
< (unsigned) height
; row
++) {
812 GLvoid
*src
= _mesa_image_address3d(unpack
, pixels
,
813 width
, height
, format
,
814 type
, slice
, row
, 0);
815 memcpy(slice_map
, src
, bytesPerRow
);
816 slice_map
+= transfer
->stride
;
819 map
+= transfer
->layer_stride
;
823 pipe_transfer_unmap(pipe
, transfer
);
824 _mesa_unmap_teximage_pbo(ctx
, unpack
);
827 memset(&blit
, 0, sizeof(blit
));
828 blit
.src
.resource
= src
;
830 blit
.src
.format
= src_format
;
831 blit
.dst
.resource
= dst
;
832 blit
.dst
.level
= stObj
->pt
!= stImage
->pt
? 0 : texImage
->TexObject
->MinLevel
+ texImage
->Level
;
833 blit
.dst
.format
= dst_format
;
834 blit
.src
.box
.x
= blit
.src
.box
.y
= blit
.src
.box
.z
= 0;
835 blit
.dst
.box
.x
= xoffset
;
836 blit
.dst
.box
.y
= yoffset
;
837 blit
.dst
.box
.z
= zoffset
+ texImage
->Face
+ texImage
->TexObject
->MinLayer
;
838 blit
.src
.box
.width
= blit
.dst
.box
.width
= width
;
839 blit
.src
.box
.height
= blit
.dst
.box
.height
= height
;
840 blit
.src
.box
.depth
= blit
.dst
.box
.depth
= depth
;
841 blit
.mask
= st_get_blit_mask(format
, texImage
->_BaseFormat
);
842 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
843 blit
.scissor_enable
= FALSE
;
845 st
->pipe
->blit(st
->pipe
, &blit
);
847 pipe_resource_reference(&src
, NULL
);
851 _mesa_store_texsubimage(ctx
, dims
, texImage
, xoffset
, yoffset
, zoffset
,
852 width
, height
, depth
, format
, type
, pixels
,
857 st_TexImage(struct gl_context
* ctx
, GLuint dims
,
858 struct gl_texture_image
*texImage
,
859 GLenum format
, GLenum type
, const void *pixels
,
860 const struct gl_pixelstore_attrib
*unpack
)
862 assert(dims
== 1 || dims
== 2 || dims
== 3);
864 prep_teximage(ctx
, texImage
, format
, type
);
866 if (texImage
->Width
== 0 || texImage
->Height
== 0 || texImage
->Depth
== 0)
869 /* allocate storage for texture data */
870 if (!ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
)) {
871 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
875 st_TexSubImage(ctx
, dims
, texImage
, 0, 0, 0,
876 texImage
->Width
, texImage
->Height
, texImage
->Depth
,
877 format
, type
, pixels
, unpack
);
882 st_CompressedTexImage(struct gl_context
*ctx
, GLuint dims
,
883 struct gl_texture_image
*texImage
,
884 GLsizei imageSize
, const GLvoid
*data
)
886 prep_teximage(ctx
, texImage
, GL_NONE
, GL_NONE
);
887 _mesa_store_compressed_teximage(ctx
, dims
, texImage
, imageSize
, data
);
894 * Called via ctx->Driver.GetTexImage()
896 * This uses a blit to copy the texture to a texture format which matches
897 * the format and type combo and then a fast read-back is done using memcpy.
898 * We can do arbitrary X/Y/Z/W/0/1 swizzling here as long as there is
899 * a format which matches the swizzling.
901 * If such a format isn't available, it falls back to _mesa_get_teximage.
903 * NOTE: Drivers usually do a blit to convert between tiled and linear
904 * texture layouts during texture uploads/downloads, so the blit
905 * we do here should be free in such cases.
908 st_GetTexImage(struct gl_context
* ctx
,
909 GLenum format
, GLenum type
, GLvoid
* pixels
,
910 struct gl_texture_image
*texImage
)
912 struct st_context
*st
= st_context(ctx
);
913 struct pipe_context
*pipe
= st
->pipe
;
914 struct pipe_screen
*screen
= pipe
->screen
;
915 GLuint width
= texImage
->Width
;
916 GLuint height
= texImage
->Height
;
917 GLuint depth
= texImage
->Depth
;
918 struct st_texture_image
*stImage
= st_texture_image(texImage
);
919 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
920 struct pipe_resource
*src
= stObj
->pt
;
921 struct pipe_resource
*dst
= NULL
;
922 struct pipe_resource dst_templ
;
923 enum pipe_format dst_format
, src_format
;
924 mesa_format mesa_format
;
925 GLenum gl_target
= texImage
->TexObject
->Target
;
926 enum pipe_texture_target pipe_target
;
927 struct pipe_blit_info blit
;
928 unsigned bind
= PIPE_BIND_TRANSFER_READ
;
929 struct pipe_transfer
*tex_xfer
;
931 boolean done
= FALSE
;
933 assert(!_mesa_is_format_etc2(texImage
->TexFormat
) &&
934 texImage
->TexFormat
!= MESA_FORMAT_ETC1_RGB8
);
936 if (!st
->prefer_blit_based_texture_transfer
&&
937 !_mesa_is_format_compressed(texImage
->TexFormat
)) {
938 /* Try to avoid the fallback if we're doing texture decompression here */
942 if (!stImage
->pt
|| !src
) {
946 /* XXX Fallback to _mesa_get_teximage for depth-stencil formats
947 * due to an incomplete stencil blit implementation in some drivers. */
948 if (format
== GL_DEPTH_STENCIL
) {
952 /* If the base internal format and the texture format don't match, we have
953 * to fall back to _mesa_get_teximage. */
954 if (texImage
->_BaseFormat
!=
955 _mesa_get_format_base_format(texImage
->TexFormat
)) {
959 /* See if the texture format already matches the format and type,
960 * in which case the memcpy-based fast path will be used. */
961 if (_mesa_format_matches_format_and_type(texImage
->TexFormat
, format
,
962 type
, ctx
->Pack
.SwapBytes
)) {
966 /* Convert the source format to what is expected by GetTexImage
967 * and see if it's supported.
969 * This only applies to glGetTexImage:
970 * - Luminance must be returned as (L,0,0,1).
971 * - Luminance alpha must be returned as (L,0,0,A).
972 * - Intensity must be returned as (I,0,0,1)
974 if (stObj
->surface_based
)
975 src_format
= util_format_linear(stObj
->surface_format
);
977 src_format
= util_format_linear(src
->format
);
978 src_format
= util_format_luminance_to_red(src_format
);
979 src_format
= util_format_intensity_to_red(src_format
);
982 !screen
->is_format_supported(screen
, src_format
, src
->target
,
984 PIPE_BIND_SAMPLER_VIEW
)) {
988 if (format
== GL_DEPTH_COMPONENT
|| format
== GL_DEPTH_STENCIL
)
989 bind
|= PIPE_BIND_DEPTH_STENCIL
;
991 bind
|= PIPE_BIND_RENDER_TARGET
;
993 /* GetTexImage only returns a single face for cubemaps. */
994 if (gl_target
== GL_TEXTURE_CUBE_MAP
) {
995 gl_target
= GL_TEXTURE_2D
;
997 pipe_target
= gl_target_to_pipe(gl_target
);
999 /* Choose the destination format by finding the best match
1000 * for the format+type combo. */
1001 dst_format
= st_choose_matching_format(st
, bind
, format
, type
,
1002 ctx
->Pack
.SwapBytes
);
1004 if (dst_format
== PIPE_FORMAT_NONE
) {
1005 GLenum dst_glformat
;
1007 /* Fall back to _mesa_get_teximage except for compressed formats,
1008 * where decompression with a blit is always preferred. */
1009 if (!util_format_is_compressed(src
->format
)) {
1013 /* Set the appropriate format for the decompressed texture.
1014 * Luminance and sRGB formats shouldn't appear here.*/
1015 switch (src_format
) {
1016 case PIPE_FORMAT_DXT1_RGB
:
1017 case PIPE_FORMAT_DXT1_RGBA
:
1018 case PIPE_FORMAT_DXT3_RGBA
:
1019 case PIPE_FORMAT_DXT5_RGBA
:
1020 case PIPE_FORMAT_RGTC1_UNORM
:
1021 case PIPE_FORMAT_RGTC2_UNORM
:
1022 case PIPE_FORMAT_ETC1_RGB8
:
1023 case PIPE_FORMAT_BPTC_RGBA_UNORM
:
1024 dst_glformat
= GL_RGBA8
;
1026 case PIPE_FORMAT_RGTC1_SNORM
:
1027 case PIPE_FORMAT_RGTC2_SNORM
:
1028 if (!ctx
->Extensions
.EXT_texture_snorm
)
1030 dst_glformat
= GL_RGBA8_SNORM
;
1032 case PIPE_FORMAT_BPTC_RGB_FLOAT
:
1033 case PIPE_FORMAT_BPTC_RGB_UFLOAT
:
1034 if (!ctx
->Extensions
.ARB_texture_float
)
1036 dst_glformat
= GL_RGBA32F
;
1043 dst_format
= st_choose_format(st
, dst_glformat
, format
, type
,
1044 pipe_target
, 0, bind
, FALSE
);
1046 if (dst_format
== PIPE_FORMAT_NONE
) {
1047 /* unable to get an rgba format!?! */
1052 /* create the destination texture */
1053 memset(&dst_templ
, 0, sizeof(dst_templ
));
1054 dst_templ
.target
= pipe_target
;
1055 dst_templ
.format
= dst_format
;
1056 dst_templ
.bind
= bind
;
1057 dst_templ
.usage
= PIPE_USAGE_STAGING
;
1059 st_gl_texture_dims_to_pipe_dims(gl_target
, width
, height
, depth
,
1060 &dst_templ
.width0
, &dst_templ
.height0
,
1061 &dst_templ
.depth0
, &dst_templ
.array_size
);
1063 dst
= screen
->resource_create(screen
, &dst_templ
);
1068 /* From now on, we need the gallium representation of dimensions. */
1069 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
1074 memset(&blit
, 0, sizeof(blit
));
1075 blit
.src
.resource
= src
;
1076 blit
.src
.level
= texImage
->Level
+ texImage
->TexObject
->MinLevel
;
1077 blit
.src
.format
= src_format
;
1078 blit
.dst
.resource
= dst
;
1080 blit
.dst
.format
= dst
->format
;
1081 blit
.src
.box
.x
= blit
.dst
.box
.x
= 0;
1082 blit
.src
.box
.y
= blit
.dst
.box
.y
= 0;
1083 blit
.src
.box
.z
= texImage
->Face
+ texImage
->TexObject
->MinLayer
;
1085 blit
.src
.box
.width
= blit
.dst
.box
.width
= width
;
1086 blit
.src
.box
.height
= blit
.dst
.box
.height
= height
;
1087 blit
.src
.box
.depth
= blit
.dst
.box
.depth
= depth
;
1088 blit
.mask
= st_get_blit_mask(texImage
->_BaseFormat
, format
);
1089 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
1090 blit
.scissor_enable
= FALSE
;
1092 /* blit/render/decompress */
1093 st
->pipe
->blit(st
->pipe
, &blit
);
1095 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
1097 map
= pipe_transfer_map_3d(pipe
, dst
, 0, PIPE_TRANSFER_READ
,
1098 0, 0, 0, width
, height
, depth
, &tex_xfer
);
1103 mesa_format
= st_pipe_format_to_mesa_format(dst_format
);
1105 /* copy/pack data into user buffer */
1106 if (_mesa_format_matches_format_and_type(mesa_format
, format
, type
,
1107 ctx
->Pack
.SwapBytes
)) {
1109 const uint bytesPerRow
= width
* util_format_get_blocksize(dst_format
);
1112 for (slice
= 0; slice
< depth
; slice
++) {
1113 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
1114 /* 1D array textures.
1115 * We need to convert gallium coords to GL coords.
1117 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1118 width
, depth
, format
,
1120 memcpy(dest
, map
, bytesPerRow
);
1123 ubyte
*slice_map
= map
;
1125 for (row
= 0; row
< height
; row
++) {
1126 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1127 width
, height
, format
,
1128 type
, slice
, row
, 0);
1129 memcpy(dest
, slice_map
, bytesPerRow
);
1130 slice_map
+= tex_xfer
->stride
;
1133 map
+= tex_xfer
->layer_stride
;
1137 /* format translation via floats */
1141 assert(util_format_is_compressed(src
->format
));
1143 rgba
= malloc(width
* 4 * sizeof(GLfloat
));
1148 if (ST_DEBUG
& DEBUG_FALLBACK
)
1149 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
1151 for (slice
= 0; slice
< depth
; slice
++) {
1152 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
1153 /* 1D array textures.
1154 * We need to convert gallium coords to GL coords.
1156 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1157 width
, depth
, format
,
1160 /* get float[4] rgba row from surface */
1161 pipe_get_tile_rgba_format(tex_xfer
, map
, 0, 0, width
, 1,
1164 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
1165 type
, dest
, &ctx
->Pack
, 0);
1168 for (row
= 0; row
< height
; row
++) {
1169 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1170 width
, height
, format
,
1171 type
, slice
, row
, 0);
1173 /* get float[4] rgba row from surface */
1174 pipe_get_tile_rgba_format(tex_xfer
, map
, 0, row
, width
, 1,
1177 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
1178 type
, dest
, &ctx
->Pack
, 0);
1181 map
+= tex_xfer
->layer_stride
;
1190 pipe_transfer_unmap(pipe
, tex_xfer
);
1192 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
1193 pipe_resource_reference(&dst
, NULL
);
1197 _mesa_get_teximage(ctx
, format
, type
, pixels
, texImage
);
1203 * Do a CopyTexSubImage operation using a read transfer from the source,
1204 * a write transfer to the destination and get_tile()/put_tile() to access
1205 * the pixels/texels.
1207 * Note: srcY=0=TOP of renderbuffer
1210 fallback_copy_texsubimage(struct gl_context
*ctx
,
1211 struct st_renderbuffer
*strb
,
1212 struct st_texture_image
*stImage
,
1214 GLint destX
, GLint destY
, GLint slice
,
1215 GLint srcX
, GLint srcY
,
1216 GLsizei width
, GLsizei height
)
1218 struct st_context
*st
= st_context(ctx
);
1219 struct pipe_context
*pipe
= st
->pipe
;
1220 struct pipe_transfer
*src_trans
;
1222 enum pipe_transfer_usage transfer_usage
;
1224 unsigned dst_width
= width
;
1225 unsigned dst_height
= height
;
1226 unsigned dst_depth
= 1;
1227 struct pipe_transfer
*transfer
;
1229 if (ST_DEBUG
& DEBUG_FALLBACK
)
1230 debug_printf("%s: fallback processing\n", __FUNCTION__
);
1232 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1233 srcY
= strb
->Base
.Height
- srcY
- height
;
1236 map
= pipe_transfer_map(pipe
,
1238 strb
->surface
->u
.tex
.level
,
1239 strb
->surface
->u
.tex
.first_layer
,
1242 width
, height
, &src_trans
);
1244 if ((baseFormat
== GL_DEPTH_COMPONENT
||
1245 baseFormat
== GL_DEPTH_STENCIL
) &&
1246 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1247 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1249 transfer_usage
= PIPE_TRANSFER_WRITE
;
1251 texDest
= st_texture_image_map(st
, stImage
, transfer_usage
,
1252 destX
, destY
, slice
,
1253 dst_width
, dst_height
, dst_depth
,
1256 if (baseFormat
== GL_DEPTH_COMPONENT
||
1257 baseFormat
== GL_DEPTH_STENCIL
) {
1258 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1259 ctx
->Pixel
.DepthBias
!= 0.0F
);
1263 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1264 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1273 data
= malloc(width
* sizeof(uint
));
1276 /* To avoid a large temp memory allocation, do copy row by row */
1277 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1278 pipe_get_tile_z(src_trans
, map
, 0, srcY
, width
, 1, data
);
1280 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1283 if (stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
) {
1284 pipe_put_tile_z(transfer
, texDest
+ row
*transfer
->layer_stride
,
1285 0, 0, width
, 1, data
);
1288 pipe_put_tile_z(transfer
, texDest
, 0, row
, width
, 1, data
);
1293 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexSubImage()");
1301 malloc(width
* height
* 4 * sizeof(GLfloat
));
1303 if (tempSrc
&& texDest
) {
1304 const GLint dims
= 2;
1306 struct gl_texture_image
*texImage
= &stImage
->base
;
1307 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1309 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1310 unpack
.Invert
= GL_TRUE
;
1313 if (stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
) {
1314 dstRowStride
= transfer
->layer_stride
;
1317 dstRowStride
= transfer
->stride
;
1320 /* get float/RGBA image from framebuffer */
1321 /* XXX this usually involves a lot of int/float conversion.
1322 * try to avoid that someday.
1324 pipe_get_tile_rgba_format(src_trans
, map
, 0, 0, width
, height
,
1325 util_format_linear(strb
->texture
->format
),
1328 /* Store into texture memory.
1329 * Note that this does some special things such as pixel transfer
1330 * ops and format conversion. In particular, if the dest tex format
1331 * is actually RGBA but the user created the texture as GL_RGB we
1332 * need to fill-in/override the alpha channel with 1.0.
1334 _mesa_texstore(ctx
, dims
,
1335 texImage
->_BaseFormat
,
1336 texImage
->TexFormat
,
1340 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1344 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1350 st_texture_image_unmap(st
, stImage
, slice
);
1351 pipe
->transfer_unmap(pipe
, src_trans
);
1356 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1357 * Note that the region to copy has already been clipped so we know we
1358 * won't read from outside the source renderbuffer's bounds.
1360 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1363 st_CopyTexSubImage(struct gl_context
*ctx
, GLuint dims
,
1364 struct gl_texture_image
*texImage
,
1365 GLint destX
, GLint destY
, GLint slice
,
1366 struct gl_renderbuffer
*rb
,
1367 GLint srcX
, GLint srcY
, GLsizei width
, GLsizei height
)
1369 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1370 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
1371 struct st_renderbuffer
*strb
= st_renderbuffer(rb
);
1372 struct st_context
*st
= st_context(ctx
);
1373 struct pipe_context
*pipe
= st
->pipe
;
1374 struct pipe_screen
*screen
= pipe
->screen
;
1375 struct pipe_blit_info blit
;
1376 enum pipe_format dst_format
;
1377 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1381 assert(!_mesa_is_format_etc2(texImage
->TexFormat
) &&
1382 texImage
->TexFormat
!= MESA_FORMAT_ETC1_RGB8
);
1384 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1385 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1389 if (_mesa_texstore_needs_transfer_ops(ctx
, texImage
->_BaseFormat
,
1390 texImage
->TexFormat
)) {
1394 /* The base internal format must match the mesa format, so make sure
1395 * e.g. an RGB internal format is really allocated as RGB and not as RGBA.
1397 if (texImage
->_BaseFormat
!=
1398 _mesa_get_format_base_format(texImage
->TexFormat
) ||
1399 rb
->_BaseFormat
!= _mesa_get_format_base_format(rb
->Format
)) {
1403 /* Choose the destination format to match the TexImage behavior. */
1404 dst_format
= util_format_linear(stImage
->pt
->format
);
1405 dst_format
= util_format_luminance_to_red(dst_format
);
1406 dst_format
= util_format_intensity_to_red(dst_format
);
1408 /* See if the destination format is supported. */
1409 if (texImage
->_BaseFormat
== GL_DEPTH_STENCIL
||
1410 texImage
->_BaseFormat
== GL_DEPTH_COMPONENT
) {
1411 bind
= PIPE_BIND_DEPTH_STENCIL
;
1414 bind
= PIPE_BIND_RENDER_TARGET
;
1418 !screen
->is_format_supported(screen
, dst_format
, stImage
->pt
->target
,
1419 stImage
->pt
->nr_samples
, bind
)) {
1423 /* Y flipping for the main framebuffer. */
1425 srcY1
= strb
->Base
.Height
- srcY
- height
;
1426 srcY0
= srcY1
+ height
;
1430 srcY1
= srcY0
+ height
;
1433 /* Blit the texture.
1434 * This supports flipping, format conversions, and downsampling.
1436 memset(&blit
, 0, sizeof(blit
));
1437 blit
.src
.resource
= strb
->texture
;
1438 blit
.src
.format
= util_format_linear(strb
->surface
->format
);
1439 blit
.src
.level
= strb
->surface
->u
.tex
.level
;
1440 blit
.src
.box
.x
= srcX
;
1441 blit
.src
.box
.y
= srcY0
;
1442 blit
.src
.box
.z
= strb
->surface
->u
.tex
.first_layer
;
1443 blit
.src
.box
.width
= width
;
1444 blit
.src
.box
.height
= srcY1
- srcY0
;
1445 blit
.src
.box
.depth
= 1;
1446 blit
.dst
.resource
= stImage
->pt
;
1447 blit
.dst
.format
= dst_format
;
1448 blit
.dst
.level
= stObj
->pt
!= stImage
->pt
? 0 : texImage
->Level
+ texImage
->TexObject
->MinLevel
;
1449 blit
.dst
.box
.x
= destX
;
1450 blit
.dst
.box
.y
= destY
;
1451 blit
.dst
.box
.z
= stImage
->base
.Face
+ slice
+ texImage
->TexObject
->MinLayer
;
1452 blit
.dst
.box
.width
= width
;
1453 blit
.dst
.box
.height
= height
;
1454 blit
.dst
.box
.depth
= 1;
1455 blit
.mask
= st_get_blit_mask(rb
->_BaseFormat
, texImage
->_BaseFormat
);
1456 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
1457 pipe
->blit(pipe
, &blit
);
1461 /* software fallback */
1462 fallback_copy_texsubimage(ctx
,
1463 strb
, stImage
, texImage
->_BaseFormat
,
1464 destX
, destY
, slice
,
1465 srcX
, srcY
, width
, height
);
1470 * Copy image data from stImage into the texture object 'stObj' at level
1474 copy_image_data_to_texture(struct st_context
*st
,
1475 struct st_texture_object
*stObj
,
1477 struct st_texture_image
*stImage
)
1481 const struct gl_texture_image
*dstImage
=
1482 stObj
->base
.Image
[stImage
->base
.Face
][dstLevel
];
1484 assert(dstImage
->Width
== stImage
->base
.Width
);
1485 assert(dstImage
->Height
== stImage
->base
.Height
);
1486 assert(dstImage
->Depth
== stImage
->base
.Depth
);
1490 /* Copy potentially with the blitter:
1493 if (stImage
->pt
->last_level
== 0)
1496 src_level
= stImage
->base
.Level
;
1498 assert(src_level
<= stImage
->pt
->last_level
);
1499 assert(u_minify(stImage
->pt
->width0
, src_level
) == stImage
->base
.Width
);
1500 assert(stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
||
1501 u_minify(stImage
->pt
->height0
, src_level
) == stImage
->base
.Height
);
1502 assert(stImage
->pt
->target
== PIPE_TEXTURE_2D_ARRAY
||
1503 stImage
->pt
->target
== PIPE_TEXTURE_CUBE_ARRAY
||
1504 u_minify(stImage
->pt
->depth0
, src_level
) == stImage
->base
.Depth
);
1506 st_texture_image_copy(st
->pipe
,
1507 stObj
->pt
, dstLevel
, /* dest texture, level */
1508 stImage
->pt
, src_level
, /* src texture, level */
1509 stImage
->base
.Face
);
1511 pipe_resource_reference(&stImage
->pt
, NULL
);
1513 else if (stImage
->TexData
) {
1514 /* Copy from malloc'd memory */
1515 /* XXX this should be re-examined/tested with a compressed format */
1516 GLuint blockSize
= util_format_get_blocksize(stObj
->pt
->format
);
1517 GLuint srcRowStride
= stImage
->base
.Width
* blockSize
;
1518 GLuint srcSliceStride
= stImage
->base
.Height
* srcRowStride
;
1519 st_texture_image_data(st
,
1526 _mesa_align_free(stImage
->TexData
);
1527 stImage
->TexData
= NULL
;
1530 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1535 * Called during state validation. When this function is finished,
1536 * the texture object should be ready for rendering.
1537 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1540 st_finalize_texture(struct gl_context
*ctx
,
1541 struct pipe_context
*pipe
,
1542 struct gl_texture_object
*tObj
)
1544 struct st_context
*st
= st_context(ctx
);
1545 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1546 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1548 struct st_texture_image
*firstImage
;
1549 enum pipe_format firstImageFormat
;
1550 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
, ptNumSamples
;
1552 if (tObj
->Immutable
)
1555 if (_mesa_is_texture_complete(tObj
, &tObj
->Sampler
)) {
1556 /* The texture is complete and we know exactly how many mipmap levels
1557 * are present/needed. This is conditional because we may be called
1558 * from the st_generate_mipmap() function when the texture object is
1559 * incomplete. In that case, we'll have set stObj->lastLevel before
1562 if (stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
1563 stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
)
1564 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1566 stObj
->lastLevel
= stObj
->base
._MaxLevel
;
1569 if (tObj
->Target
== GL_TEXTURE_BUFFER
) {
1570 struct st_buffer_object
*st_obj
= st_buffer_object(tObj
->BufferObject
);
1573 pipe_resource_reference(&stObj
->pt
, NULL
);
1574 st_texture_release_all_sampler_views(stObj
);
1578 if (st_obj
->buffer
!= stObj
->pt
) {
1579 pipe_resource_reference(&stObj
->pt
, st_obj
->buffer
);
1580 st_texture_release_all_sampler_views(stObj
);
1581 stObj
->width0
= stObj
->pt
->width0
/ _mesa_get_format_bytes(tObj
->_BufferObjectFormat
);
1589 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1592 /* If both firstImage and stObj point to a texture which can contain
1593 * all active images, favour firstImage. Note that because of the
1594 * completeness requirement, we know that the image dimensions
1597 if (firstImage
->pt
&&
1598 firstImage
->pt
!= stObj
->pt
&&
1599 (!stObj
->pt
|| firstImage
->pt
->last_level
>= stObj
->pt
->last_level
)) {
1600 pipe_resource_reference(&stObj
->pt
, firstImage
->pt
);
1601 st_texture_release_all_sampler_views(stObj
);
1604 /* If this texture comes from a window system, there is nothing else to do. */
1605 if (stObj
->surface_based
) {
1609 /* Find gallium format for the Mesa texture */
1611 st_mesa_format_to_pipe_format(st
, firstImage
->base
.TexFormat
);
1613 /* Find size of level=0 Gallium mipmap image, plus number of texture layers */
1615 GLuint width
, height
, depth
;
1616 if (!guess_base_level_size(stObj
->base
.Target
,
1617 firstImage
->base
.Width2
,
1618 firstImage
->base
.Height2
,
1619 firstImage
->base
.Depth2
,
1620 firstImage
->base
.Level
,
1621 &width
, &height
, &depth
)) {
1622 width
= stObj
->width0
;
1623 height
= stObj
->height0
;
1624 depth
= stObj
->depth0
;
1626 /* convert GL dims to Gallium dims */
1627 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
, width
, height
, depth
,
1628 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1629 ptNumSamples
= firstImage
->base
.NumSamples
;
1632 /* If we already have a gallium texture, check that it matches the texture
1633 * object's format, target, size, num_levels, etc.
1636 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1637 stObj
->pt
->format
!= firstImageFormat
||
1638 stObj
->pt
->last_level
< stObj
->lastLevel
||
1639 stObj
->pt
->width0
!= ptWidth
||
1640 stObj
->pt
->height0
!= ptHeight
||
1641 stObj
->pt
->depth0
!= ptDepth
||
1642 stObj
->pt
->nr_samples
!= ptNumSamples
||
1643 stObj
->pt
->array_size
!= ptLayers
)
1645 /* The gallium texture does not match the Mesa texture so delete the
1646 * gallium texture now. We'll make a new one below.
1648 pipe_resource_reference(&stObj
->pt
, NULL
);
1649 st_texture_release_all_sampler_views(stObj
);
1650 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1654 /* May need to create a new gallium texture:
1657 GLuint bindings
= default_bindings(st
, firstImageFormat
);
1659 stObj
->pt
= st_texture_create(st
,
1660 gl_target_to_pipe(stObj
->base
.Target
),
1666 ptLayers
, ptNumSamples
,
1670 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1675 /* Pull in any images not in the object's texture:
1677 for (face
= 0; face
< nr_faces
; face
++) {
1679 for (level
= stObj
->base
.BaseLevel
; level
<= stObj
->lastLevel
; level
++) {
1680 struct st_texture_image
*stImage
=
1681 st_texture_image(stObj
->base
.Image
[face
][level
]);
1683 /* Need to import images in main memory or held in other textures.
1685 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1687 (stImage
->base
.Width
== u_minify(stObj
->width0
, level
) &&
1688 stImage
->base
.Height
== u_minify(stObj
->height0
, level
) &&
1689 stImage
->base
.Depth
== u_minify(stObj
->depth0
, level
))) {
1690 /* src image fits expected dest mipmap level size */
1691 copy_image_data_to_texture(st
, stObj
, level
, stImage
);
1702 * Called via ctx->Driver.AllocTextureStorage() to allocate texture memory
1703 * for a whole mipmap stack.
1706 st_AllocTextureStorage(struct gl_context
*ctx
,
1707 struct gl_texture_object
*texObj
,
1708 GLsizei levels
, GLsizei width
,
1709 GLsizei height
, GLsizei depth
)
1711 const GLuint numFaces
= _mesa_num_tex_faces(texObj
->Target
);
1712 struct gl_texture_image
*texImage
= texObj
->Image
[0][0];
1713 struct st_context
*st
= st_context(ctx
);
1714 struct st_texture_object
*stObj
= st_texture_object(texObj
);
1715 struct pipe_screen
*screen
= st
->pipe
->screen
;
1716 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
, bindings
;
1717 enum pipe_format fmt
;
1719 GLuint num_samples
= texImage
->NumSamples
;
1723 /* Save the level=0 dimensions */
1724 stObj
->width0
= width
;
1725 stObj
->height0
= height
;
1726 stObj
->depth0
= depth
;
1727 stObj
->lastLevel
= levels
- 1;
1729 fmt
= st_mesa_format_to_pipe_format(st
, texImage
->TexFormat
);
1731 bindings
= default_bindings(st
, fmt
);
1733 /* Raise the sample count if the requested one is unsupported. */
1734 if (num_samples
> 1) {
1735 boolean found
= FALSE
;
1737 for (; num_samples
<= ctx
->Const
.MaxSamples
; num_samples
++) {
1738 if (screen
->is_format_supported(screen
, fmt
, PIPE_TEXTURE_2D
,
1740 PIPE_BIND_SAMPLER_VIEW
)) {
1741 /* Update the sample count in gl_texture_image as well. */
1742 texImage
->NumSamples
= num_samples
;
1753 st_gl_texture_dims_to_pipe_dims(texObj
->Target
,
1754 width
, height
, depth
,
1755 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1757 stObj
->pt
= st_texture_create(st
,
1758 gl_target_to_pipe(texObj
->Target
),
1764 ptLayers
, num_samples
,
1769 /* Set image resource pointers */
1770 for (level
= 0; level
< levels
; level
++) {
1772 for (face
= 0; face
< numFaces
; face
++) {
1773 struct st_texture_image
*stImage
=
1774 st_texture_image(texObj
->Image
[face
][level
]);
1775 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1784 st_TestProxyTexImage(struct gl_context
*ctx
, GLenum target
,
1785 GLint level
, mesa_format format
,
1786 GLint width
, GLint height
,
1787 GLint depth
, GLint border
)
1789 struct st_context
*st
= st_context(ctx
);
1790 struct pipe_context
*pipe
= st
->pipe
;
1792 if (width
== 0 || height
== 0 || depth
== 0) {
1793 /* zero-sized images are legal, and always fit! */
1797 if (pipe
->screen
->can_create_resource
) {
1798 /* Ask the gallium driver if the texture is too large */
1799 struct gl_texture_object
*texObj
=
1800 _mesa_get_current_tex_object(ctx
, target
);
1801 struct pipe_resource pt
;
1803 /* Setup the pipe_resource object
1805 memset(&pt
, 0, sizeof(pt
));
1807 pt
.target
= gl_target_to_pipe(target
);
1808 pt
.format
= st_mesa_format_to_pipe_format(st
, format
);
1810 st_gl_texture_dims_to_pipe_dims(target
,
1811 width
, height
, depth
,
1812 &pt
.width0
, &pt
.height0
,
1813 &pt
.depth0
, &pt
.array_size
);
1815 if (level
== 0 && (texObj
->Sampler
.MinFilter
== GL_LINEAR
||
1816 texObj
->Sampler
.MinFilter
== GL_NEAREST
)) {
1817 /* assume just one mipmap level */
1821 /* assume a full set of mipmaps */
1822 pt
.last_level
= _mesa_logbase2(MAX3(width
, height
, depth
));
1825 return pipe
->screen
->can_create_resource(pipe
->screen
, &pt
);
1828 /* Use core Mesa fallback */
1829 return _mesa_test_proxy_teximage(ctx
, target
, level
, format
,
1830 width
, height
, depth
, border
);
1835 st_TextureView(struct gl_context
*ctx
,
1836 struct gl_texture_object
*texObj
,
1837 struct gl_texture_object
*origTexObj
)
1839 struct st_texture_object
*orig
= st_texture_object(origTexObj
);
1840 struct st_texture_object
*tex
= st_texture_object(texObj
);
1841 struct gl_texture_image
*image
= texObj
->Image
[0][0];
1843 const int numFaces
= _mesa_num_tex_faces(texObj
->Target
);
1844 const int numLevels
= texObj
->NumLevels
;
1849 pipe_resource_reference(&tex
->pt
, orig
->pt
);
1851 /* Set image resource pointers */
1852 for (level
= 0; level
< numLevels
; level
++) {
1853 for (face
= 0; face
< numFaces
; face
++) {
1854 struct st_texture_image
*stImage
=
1855 st_texture_image(texObj
->Image
[face
][level
]);
1856 pipe_resource_reference(&stImage
->pt
, tex
->pt
);
1860 tex
->surface_based
= GL_TRUE
;
1861 tex
->surface_format
=
1862 st_mesa_format_to_pipe_format(st_context(ctx
), image
->TexFormat
);
1864 tex
->width0
= image
->Width
;
1865 tex
->height0
= image
->Height
;
1866 tex
->depth0
= image
->Depth
;
1867 tex
->lastLevel
= numLevels
- 1;
1874 st_init_texture_functions(struct dd_function_table
*functions
)
1876 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1877 functions
->QuerySamplesForFormat
= st_QuerySamplesForFormat
;
1878 functions
->TexImage
= st_TexImage
;
1879 functions
->TexSubImage
= st_TexSubImage
;
1880 functions
->CompressedTexSubImage
= _mesa_store_compressed_texsubimage
;
1881 functions
->CopyTexSubImage
= st_CopyTexSubImage
;
1882 functions
->GenerateMipmap
= st_generate_mipmap
;
1884 functions
->GetTexImage
= st_GetTexImage
;
1886 /* compressed texture functions */
1887 functions
->CompressedTexImage
= st_CompressedTexImage
;
1888 functions
->GetCompressedTexImage
= _mesa_get_compressed_teximage
;
1890 functions
->NewTextureObject
= st_NewTextureObject
;
1891 functions
->NewTextureImage
= st_NewTextureImage
;
1892 functions
->DeleteTextureImage
= st_DeleteTextureImage
;
1893 functions
->DeleteTexture
= st_DeleteTextureObject
;
1894 functions
->AllocTextureImageBuffer
= st_AllocTextureImageBuffer
;
1895 functions
->FreeTextureImageBuffer
= st_FreeTextureImageBuffer
;
1896 functions
->MapTextureImage
= st_MapTextureImage
;
1897 functions
->UnmapTextureImage
= st_UnmapTextureImage
;
1899 /* XXX Temporary until we can query pipe's texture sizes */
1900 functions
->TestProxyTexImage
= st_TestProxyTexImage
;
1902 functions
->AllocTextureStorage
= st_AllocTextureStorage
;
1903 functions
->TextureView
= st_TextureView
;