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_context
*st
= st_context(ctx
);
156 struct st_texture_object
*stObj
= st_texture_object(texObj
);
158 pipe_resource_reference(&stObj
->pt
, NULL
);
159 st_texture_release_all_sampler_views(st
, stObj
);
160 st_texture_free_sampler_views(stObj
);
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 _mesa_align_free(stImage
->TexData
);
179 stImage
->TexData
= NULL
;
181 free(stImage
->transfer
);
182 stImage
->transfer
= NULL
;
183 stImage
->num_transfers
= 0;
187 /** called via ctx->Driver.MapTextureImage() */
189 st_MapTextureImage(struct gl_context
*ctx
,
190 struct gl_texture_image
*texImage
,
191 GLuint slice
, GLuint x
, GLuint y
, GLuint w
, GLuint h
,
193 GLubyte
**mapOut
, GLint
*rowStrideOut
)
195 struct st_context
*st
= st_context(ctx
);
196 struct st_texture_image
*stImage
= st_texture_image(texImage
);
199 struct pipe_transfer
*transfer
;
202 if (mode
& GL_MAP_READ_BIT
)
203 pipeMode
|= PIPE_TRANSFER_READ
;
204 if (mode
& GL_MAP_WRITE_BIT
)
205 pipeMode
|= PIPE_TRANSFER_WRITE
;
206 if (mode
& GL_MAP_INVALIDATE_RANGE_BIT
)
207 pipeMode
|= PIPE_TRANSFER_DISCARD_RANGE
;
209 map
= st_texture_image_map(st
, stImage
, pipeMode
, x
, y
, slice
, w
, h
, 1,
212 if (_mesa_is_format_etc2(texImage
->TexFormat
) ||
213 (texImage
->TexFormat
== MESA_FORMAT_ETC1_RGB8
&& !st
->has_etc1
)) {
214 /* ETC isn't supported by gallium and it's represented
215 * by uncompressed formats. Only write transfers with precompressed
216 * data are supported by ES3, which makes this really simple.
218 * Just create a temporary storage where the ETC texture will
219 * be stored. It will be decompressed in the Unmap function.
221 unsigned z
= transfer
->box
.z
;
222 struct st_texture_image_transfer
*itransfer
= &stImage
->transfer
[z
];
224 itransfer
->temp_data
=
225 malloc(_mesa_format_image_size(texImage
->TexFormat
, w
, h
, 1));
226 itransfer
->temp_stride
=
227 _mesa_format_row_stride(texImage
->TexFormat
, w
);
228 itransfer
->map
= map
;
230 *mapOut
= itransfer
->temp_data
;
231 *rowStrideOut
= itransfer
->temp_stride
;
234 /* supported mapping */
236 *rowStrideOut
= transfer
->stride
;
246 /** called via ctx->Driver.UnmapTextureImage() */
248 st_UnmapTextureImage(struct gl_context
*ctx
,
249 struct gl_texture_image
*texImage
,
252 struct st_context
*st
= st_context(ctx
);
253 struct st_texture_image
*stImage
= st_texture_image(texImage
);
255 if (_mesa_is_format_etc2(texImage
->TexFormat
) ||
256 (texImage
->TexFormat
== MESA_FORMAT_ETC1_RGB8
&& !st
->has_etc1
)) {
257 /* Decompress the ETC texture to the mapped one. */
258 unsigned z
= slice
+ stImage
->base
.Face
;
259 struct st_texture_image_transfer
*itransfer
= &stImage
->transfer
[z
];
260 struct pipe_transfer
*transfer
= itransfer
->transfer
;
262 assert(z
== transfer
->box
.z
);
264 if (texImage
->TexFormat
== MESA_FORMAT_ETC1_RGB8
) {
265 _mesa_etc1_unpack_rgba8888(itransfer
->map
, transfer
->stride
,
266 itransfer
->temp_data
,
267 itransfer
->temp_stride
,
268 transfer
->box
.width
, transfer
->box
.height
);
271 _mesa_unpack_etc2_format(itransfer
->map
, transfer
->stride
,
272 itransfer
->temp_data
, itransfer
->temp_stride
,
273 transfer
->box
.width
, transfer
->box
.height
,
274 texImage
->TexFormat
);
277 free(itransfer
->temp_data
);
278 itransfer
->temp_data
= NULL
;
279 itransfer
->temp_stride
= 0;
283 st_texture_image_unmap(st
, stImage
, slice
);
288 * Return default texture resource binding bitmask for the given format.
291 default_bindings(struct st_context
*st
, enum pipe_format format
)
293 struct pipe_screen
*screen
= st
->pipe
->screen
;
294 const unsigned target
= PIPE_TEXTURE_2D
;
297 if (util_format_is_depth_or_stencil(format
))
298 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_DEPTH_STENCIL
;
300 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_RENDER_TARGET
;
302 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
306 format
= util_format_linear(format
);
308 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
311 return PIPE_BIND_SAMPLER_VIEW
;
317 * Given the size of a mipmap image, try to compute the size of the level=0
320 * Note that this isn't always accurate for odd-sized, non-POW textures.
321 * For example, if level=1 and width=40 then the level=0 width may be 80 or 81.
323 * \return GL_TRUE for success, GL_FALSE for failure
326 guess_base_level_size(GLenum target
,
327 GLuint width
, GLuint height
, GLuint depth
, GLuint level
,
328 GLuint
*width0
, GLuint
*height0
, GLuint
*depth0
)
335 /* Guess the size of the base level.
336 * Depending on the image's size, we can't always make a guess here.
340 case GL_TEXTURE_1D_ARRAY
:
345 case GL_TEXTURE_2D_ARRAY
:
346 /* We can't make a good guess here, because the base level dimensions
349 if (width
== 1 || height
== 1) {
356 case GL_TEXTURE_CUBE_MAP
:
357 case GL_TEXTURE_CUBE_MAP_ARRAY
:
363 /* We can't make a good guess here, because the base level dimensions
366 if (width
== 1 || height
== 1 || depth
== 1) {
374 case GL_TEXTURE_RECTANGLE
:
391 * Try to allocate a pipe_resource object for the given st_texture_object.
393 * We use the given st_texture_image as a clue to determine the size of the
394 * mipmap image at level=0.
396 * \return GL_TRUE for success, GL_FALSE if out of memory.
399 guess_and_alloc_texture(struct st_context
*st
,
400 struct st_texture_object
*stObj
,
401 const struct st_texture_image
*stImage
)
403 GLuint lastLevel
, width
, height
, depth
;
405 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
406 enum pipe_format fmt
;
408 DBG("%s\n", __FUNCTION__
);
412 if (!guess_base_level_size(stObj
->base
.Target
,
413 stImage
->base
.Width2
,
414 stImage
->base
.Height2
,
415 stImage
->base
.Depth2
,
417 &width
, &height
, &depth
)) {
418 /* we can't determine the image size at level=0 */
419 stObj
->width0
= stObj
->height0
= stObj
->depth0
= 0;
420 /* this is not an out of memory error */
424 /* At this point, (width x height x depth) is the expected size of
425 * the level=0 mipmap image.
428 /* Guess a reasonable value for lastLevel. With OpenGL we have no
429 * idea how many mipmap levels will be in a texture until we start
430 * to render with it. Make an educated guess here but be prepared
431 * to re-allocating a texture buffer with space for more (or fewer)
432 * mipmap levels later.
434 if ((stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
||
435 stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
436 (stObj
->base
.BaseLevel
== 0 &&
437 stObj
->base
.MaxLevel
== 0) ||
438 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
439 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
440 !stObj
->base
.GenerateMipmap
&&
441 stImage
->base
.Level
== 0) {
442 /* only alloc space for a single mipmap level */
446 /* alloc space for a full mipmap */
447 lastLevel
= _mesa_get_tex_max_num_levels(stObj
->base
.Target
,
448 width
, height
, depth
) - 1;
451 /* Save the level=0 dimensions */
452 stObj
->width0
= width
;
453 stObj
->height0
= height
;
454 stObj
->depth0
= depth
;
456 fmt
= st_mesa_format_to_pipe_format(st
, stImage
->base
.TexFormat
);
458 bindings
= default_bindings(st
, fmt
);
460 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
461 width
, height
, depth
,
462 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
464 stObj
->pt
= st_texture_create(st
,
465 gl_target_to_pipe(stObj
->base
.Target
),
474 stObj
->lastLevel
= lastLevel
;
476 DBG("%s returning %d\n", __FUNCTION__
, (stObj
->pt
!= NULL
));
478 return stObj
->pt
!= NULL
;
483 * Called via ctx->Driver.AllocTextureImageBuffer().
484 * If the texture object/buffer already has space for the indicated image,
485 * we're done. Otherwise, allocate memory for the new texture image.
488 st_AllocTextureImageBuffer(struct gl_context
*ctx
,
489 struct gl_texture_image
*texImage
)
491 struct st_context
*st
= st_context(ctx
);
492 struct st_texture_image
*stImage
= st_texture_image(texImage
);
493 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
494 const GLuint level
= texImage
->Level
;
495 GLuint width
= texImage
->Width
;
496 GLuint height
= texImage
->Height
;
497 GLuint depth
= texImage
->Depth
;
499 DBG("%s\n", __FUNCTION__
);
501 assert(!stImage
->TexData
);
502 assert(!stImage
->pt
); /* xxx this might be wrong */
504 /* Look if the parent texture object has space for this image */
506 level
<= stObj
->pt
->last_level
&&
507 st_texture_match_image(st
, stObj
->pt
, texImage
)) {
508 /* this image will fit in the existing texture object's memory */
509 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
513 /* The parent texture object does not have space for this image */
515 pipe_resource_reference(&stObj
->pt
, NULL
);
516 st_texture_release_all_sampler_views(st
, stObj
);
518 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
519 /* Probably out of memory.
520 * Try flushing any pending rendering, then retry.
523 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
524 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
530 st_texture_match_image(st
, stObj
->pt
, texImage
)) {
531 /* The image will live in the object's mipmap memory */
532 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
537 /* Create a new, temporary texture/resource/buffer to hold this
538 * one texture image. Note that when we later access this image
539 * (either for mapping or copying) we'll want to always specify
540 * mipmap level=0, even if the image represents some other mipmap
543 enum pipe_format format
=
544 st_mesa_format_to_pipe_format(st
, texImage
->TexFormat
);
545 GLuint bindings
= default_bindings(st
, format
);
546 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
548 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
549 width
, height
, depth
,
550 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
552 stImage
->pt
= st_texture_create(st
,
553 gl_target_to_pipe(stObj
->base
.Target
),
561 return stImage
->pt
!= NULL
;
567 * Preparation prior to glTexImage. Basically check the 'surface_based'
568 * field and switch to a "normal" tex image if necessary.
571 prep_teximage(struct gl_context
*ctx
, struct gl_texture_image
*texImage
,
572 GLenum format
, GLenum type
)
574 struct gl_texture_object
*texObj
= texImage
->TexObject
;
575 struct st_texture_object
*stObj
= st_texture_object(texObj
);
577 /* switch to "normal" */
578 if (stObj
->surface_based
) {
579 const GLenum target
= texObj
->Target
;
580 const GLuint level
= texImage
->Level
;
581 mesa_format texFormat
;
583 _mesa_clear_texture_object(ctx
, texObj
);
584 pipe_resource_reference(&stObj
->pt
, NULL
);
586 /* oops, need to init this image again */
587 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
588 texImage
->InternalFormat
, format
,
591 _mesa_init_teximage_fields(ctx
, texImage
,
592 texImage
->Width
, texImage
->Height
,
593 texImage
->Depth
, texImage
->Border
,
594 texImage
->InternalFormat
, texFormat
);
596 stObj
->surface_based
= GL_FALSE
;
602 * Return a writemask for the gallium blit. The parameters can be base
603 * formats or "format" from glDrawPixels/glTexImage/glGetTexImage.
606 st_get_blit_mask(GLenum srcFormat
, GLenum dstFormat
)
609 case GL_DEPTH_STENCIL
:
611 case GL_DEPTH_STENCIL
:
613 case GL_DEPTH_COMPONENT
:
615 case GL_STENCIL_INDEX
:
622 case GL_DEPTH_COMPONENT
:
624 case GL_DEPTH_STENCIL
:
625 case GL_DEPTH_COMPONENT
:
632 case GL_STENCIL_INDEX
:
634 case GL_STENCIL_INDEX
:
642 return PIPE_MASK_RGBA
;
648 st_TexSubImage(struct gl_context
*ctx
, GLuint dims
,
649 struct gl_texture_image
*texImage
,
650 GLint xoffset
, GLint yoffset
, GLint zoffset
,
651 GLint width
, GLint height
, GLint depth
,
652 GLenum format
, GLenum type
, const void *pixels
,
653 const struct gl_pixelstore_attrib
*unpack
)
655 struct st_context
*st
= st_context(ctx
);
656 struct st_texture_image
*stImage
= st_texture_image(texImage
);
657 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
658 struct pipe_context
*pipe
= st
->pipe
;
659 struct pipe_screen
*screen
= pipe
->screen
;
660 struct pipe_resource
*dst
= stImage
->pt
;
661 struct pipe_resource
*src
= NULL
;
662 struct pipe_resource src_templ
;
663 struct pipe_transfer
*transfer
;
664 struct pipe_blit_info blit
;
665 enum pipe_format src_format
, dst_format
;
666 mesa_format mesa_src_format
;
667 GLenum gl_target
= texImage
->TexObject
->Target
;
671 assert(!_mesa_is_format_etc2(texImage
->TexFormat
) &&
672 texImage
->TexFormat
!= MESA_FORMAT_ETC1_RGB8
);
674 if (!st
->prefer_blit_based_texture_transfer
) {
682 /* XXX Fallback for depth-stencil formats due to an incomplete stencil
683 * blit implementation in some drivers. */
684 if (format
== GL_DEPTH_STENCIL
) {
688 /* If the base internal format and the texture format don't match,
689 * we can't use blit-based TexSubImage. */
690 if (texImage
->_BaseFormat
!=
691 _mesa_get_format_base_format(texImage
->TexFormat
)) {
695 /* See if the texture format already matches the format and type,
696 * in which case the memcpy-based fast path will likely be used and
697 * we don't have to blit. */
698 if (_mesa_format_matches_format_and_type(texImage
->TexFormat
, format
,
699 type
, unpack
->SwapBytes
)) {
703 if (format
== GL_DEPTH_COMPONENT
|| format
== GL_DEPTH_STENCIL
)
704 bind
= PIPE_BIND_DEPTH_STENCIL
;
706 bind
= PIPE_BIND_RENDER_TARGET
;
708 /* See if the destination format is supported.
709 * For luminance and intensity, only the red channel is stored there. */
710 dst_format
= util_format_linear(dst
->format
);
711 dst_format
= util_format_luminance_to_red(dst_format
);
712 dst_format
= util_format_intensity_to_red(dst_format
);
715 !screen
->is_format_supported(screen
, dst_format
, dst
->target
,
716 dst
->nr_samples
, bind
)) {
720 /* Choose the source format. */
721 src_format
= st_choose_matching_format(st
, PIPE_BIND_SAMPLER_VIEW
,
722 format
, type
, unpack
->SwapBytes
);
727 mesa_src_format
= st_pipe_format_to_mesa_format(src_format
);
729 /* There is no reason to do this if we cannot use memcpy for the temporary
730 * source texture at least. This also takes transfer ops into account,
732 if (!_mesa_texstore_can_use_memcpy(ctx
,
733 _mesa_get_format_base_format(mesa_src_format
),
734 mesa_src_format
, format
, type
, unpack
)) {
738 /* TexSubImage only sets a single cubemap face. */
739 if (gl_target
== GL_TEXTURE_CUBE_MAP
) {
740 gl_target
= GL_TEXTURE_2D
;
743 /* Initialize the source texture description. */
744 memset(&src_templ
, 0, sizeof(src_templ
));
745 src_templ
.target
= gl_target_to_pipe(gl_target
);
746 src_templ
.format
= src_format
;
747 src_templ
.bind
= PIPE_BIND_SAMPLER_VIEW
;
748 src_templ
.usage
= PIPE_USAGE_STAGING
;
750 st_gl_texture_dims_to_pipe_dims(gl_target
, width
, height
, depth
,
751 &src_templ
.width0
, &src_templ
.height0
,
752 &src_templ
.depth0
, &src_templ
.array_size
);
754 /* Check for NPOT texture support. */
755 if (!screen
->get_param(screen
, PIPE_CAP_NPOT_TEXTURES
) &&
756 (!util_is_power_of_two(src_templ
.width0
) ||
757 !util_is_power_of_two(src_templ
.height0
) ||
758 !util_is_power_of_two(src_templ
.depth0
))) {
762 /* Create the source texture. */
763 src
= screen
->resource_create(screen
, &src_templ
);
768 /* Map source pixels. */
769 pixels
= _mesa_validate_pbo_teximage(ctx
, dims
, width
, height
, depth
,
770 format
, type
, pixels
, unpack
,
773 /* This is a GL error. */
774 pipe_resource_reference(&src
, NULL
);
778 /* From now on, we need the gallium representation of dimensions. */
779 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
786 map
= pipe_transfer_map_3d(pipe
, src
, 0, PIPE_TRANSFER_WRITE
, 0, 0, 0,
787 width
, height
, depth
, &transfer
);
789 _mesa_unmap_teximage_pbo(ctx
, unpack
);
790 pipe_resource_reference(&src
, NULL
);
794 /* Upload pixels (just memcpy). */
796 const uint bytesPerRow
= width
* util_format_get_blocksize(src_format
);
799 for (slice
= 0; slice
< (unsigned) depth
; slice
++) {
800 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
801 /* 1D array textures.
802 * We need to convert gallium coords to GL coords.
804 GLvoid
*src
= _mesa_image_address3d(unpack
, pixels
,
805 width
, depth
, format
,
807 memcpy(map
, src
, bytesPerRow
);
810 ubyte
*slice_map
= map
;
812 for (row
= 0; row
< (unsigned) height
; row
++) {
813 GLvoid
*src
= _mesa_image_address3d(unpack
, pixels
,
814 width
, height
, format
,
815 type
, slice
, row
, 0);
816 memcpy(slice_map
, src
, bytesPerRow
);
817 slice_map
+= transfer
->stride
;
820 map
+= transfer
->layer_stride
;
824 pipe_transfer_unmap(pipe
, transfer
);
825 _mesa_unmap_teximage_pbo(ctx
, unpack
);
828 memset(&blit
, 0, sizeof(blit
));
829 blit
.src
.resource
= src
;
831 blit
.src
.format
= src_format
;
832 blit
.dst
.resource
= dst
;
833 blit
.dst
.level
= stObj
->pt
!= stImage
->pt
? 0 : texImage
->TexObject
->MinLevel
+ texImage
->Level
;
834 blit
.dst
.format
= dst_format
;
835 blit
.src
.box
.x
= blit
.src
.box
.y
= blit
.src
.box
.z
= 0;
836 blit
.dst
.box
.x
= xoffset
;
837 blit
.dst
.box
.y
= yoffset
;
838 blit
.dst
.box
.z
= zoffset
+ texImage
->Face
+ texImage
->TexObject
->MinLayer
;
839 blit
.src
.box
.width
= blit
.dst
.box
.width
= width
;
840 blit
.src
.box
.height
= blit
.dst
.box
.height
= height
;
841 blit
.src
.box
.depth
= blit
.dst
.box
.depth
= depth
;
842 blit
.mask
= st_get_blit_mask(format
, texImage
->_BaseFormat
);
843 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
844 blit
.scissor_enable
= FALSE
;
846 st
->pipe
->blit(st
->pipe
, &blit
);
848 pipe_resource_reference(&src
, NULL
);
852 _mesa_store_texsubimage(ctx
, dims
, texImage
, xoffset
, yoffset
, zoffset
,
853 width
, height
, depth
, format
, type
, pixels
,
858 st_TexImage(struct gl_context
* ctx
, GLuint dims
,
859 struct gl_texture_image
*texImage
,
860 GLenum format
, GLenum type
, const void *pixels
,
861 const struct gl_pixelstore_attrib
*unpack
)
863 assert(dims
== 1 || dims
== 2 || dims
== 3);
865 prep_teximage(ctx
, texImage
, format
, type
);
867 if (texImage
->Width
== 0 || texImage
->Height
== 0 || texImage
->Depth
== 0)
870 /* allocate storage for texture data */
871 if (!ctx
->Driver
.AllocTextureImageBuffer(ctx
, texImage
)) {
872 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage%uD", dims
);
876 st_TexSubImage(ctx
, dims
, texImage
, 0, 0, 0,
877 texImage
->Width
, texImage
->Height
, texImage
->Depth
,
878 format
, type
, pixels
, unpack
);
883 st_CompressedTexImage(struct gl_context
*ctx
, GLuint dims
,
884 struct gl_texture_image
*texImage
,
885 GLsizei imageSize
, const GLvoid
*data
)
887 prep_teximage(ctx
, texImage
, GL_NONE
, GL_NONE
);
888 _mesa_store_compressed_teximage(ctx
, dims
, texImage
, imageSize
, data
);
895 * Called via ctx->Driver.GetTexImage()
897 * This uses a blit to copy the texture to a texture format which matches
898 * the format and type combo and then a fast read-back is done using memcpy.
899 * We can do arbitrary X/Y/Z/W/0/1 swizzling here as long as there is
900 * a format which matches the swizzling.
902 * If such a format isn't available, it falls back to _mesa_GetTexImage_sw.
904 * NOTE: Drivers usually do a blit to convert between tiled and linear
905 * texture layouts during texture uploads/downloads, so the blit
906 * we do here should be free in such cases.
909 st_GetTexImage(struct gl_context
* ctx
,
910 GLenum format
, GLenum type
, GLvoid
* pixels
,
911 struct gl_texture_image
*texImage
)
913 struct st_context
*st
= st_context(ctx
);
914 struct pipe_context
*pipe
= st
->pipe
;
915 struct pipe_screen
*screen
= pipe
->screen
;
916 GLuint width
= texImage
->Width
;
917 GLuint height
= texImage
->Height
;
918 GLuint depth
= texImage
->Depth
;
919 struct st_texture_image
*stImage
= st_texture_image(texImage
);
920 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
921 struct pipe_resource
*src
= stObj
->pt
;
922 struct pipe_resource
*dst
= NULL
;
923 struct pipe_resource dst_templ
;
924 enum pipe_format dst_format
, src_format
;
925 mesa_format mesa_format
;
926 GLenum gl_target
= texImage
->TexObject
->Target
;
927 enum pipe_texture_target pipe_target
;
928 struct pipe_blit_info blit
;
929 unsigned bind
= PIPE_BIND_TRANSFER_READ
;
930 struct pipe_transfer
*tex_xfer
;
932 boolean done
= FALSE
;
934 assert(!_mesa_is_format_etc2(texImage
->TexFormat
) &&
935 texImage
->TexFormat
!= MESA_FORMAT_ETC1_RGB8
);
937 if (!st
->prefer_blit_based_texture_transfer
&&
938 !_mesa_is_format_compressed(texImage
->TexFormat
)) {
939 /* Try to avoid the fallback if we're doing texture decompression here */
943 if (!stImage
->pt
|| !src
) {
947 /* XXX Fallback to _mesa_GetTexImage_sw for depth-stencil formats
948 * due to an incomplete stencil blit implementation in some drivers. */
949 if (format
== GL_DEPTH_STENCIL
) {
953 /* If the base internal format and the texture format don't match, we have
954 * to fall back to _mesa_GetTexImage_sw. */
955 if (texImage
->_BaseFormat
!=
956 _mesa_get_format_base_format(texImage
->TexFormat
)) {
960 /* See if the texture format already matches the format and type,
961 * in which case the memcpy-based fast path will be used. */
962 if (_mesa_format_matches_format_and_type(texImage
->TexFormat
, format
,
963 type
, ctx
->Pack
.SwapBytes
)) {
967 /* Convert the source format to what is expected by GetTexImage
968 * and see if it's supported.
970 * This only applies to glGetTexImage:
971 * - Luminance must be returned as (L,0,0,1).
972 * - Luminance alpha must be returned as (L,0,0,A).
973 * - Intensity must be returned as (I,0,0,1)
975 if (stObj
->surface_based
)
976 src_format
= util_format_linear(stObj
->surface_format
);
978 src_format
= util_format_linear(src
->format
);
979 src_format
= util_format_luminance_to_red(src_format
);
980 src_format
= util_format_intensity_to_red(src_format
);
983 !screen
->is_format_supported(screen
, src_format
, src
->target
,
985 PIPE_BIND_SAMPLER_VIEW
)) {
989 if (format
== GL_DEPTH_COMPONENT
|| format
== GL_DEPTH_STENCIL
)
990 bind
|= PIPE_BIND_DEPTH_STENCIL
;
992 bind
|= PIPE_BIND_RENDER_TARGET
;
994 /* GetTexImage only returns a single face for cubemaps. */
995 if (gl_target
== GL_TEXTURE_CUBE_MAP
) {
996 gl_target
= GL_TEXTURE_2D
;
998 pipe_target
= gl_target_to_pipe(gl_target
);
1000 /* Choose the destination format by finding the best match
1001 * for the format+type combo. */
1002 dst_format
= st_choose_matching_format(st
, bind
, format
, type
,
1003 ctx
->Pack
.SwapBytes
);
1005 if (dst_format
== PIPE_FORMAT_NONE
) {
1006 GLenum dst_glformat
;
1008 /* Fall back to _mesa_GetTexImage_sw except for compressed formats,
1009 * where decompression with a blit is always preferred. */
1010 if (!util_format_is_compressed(src
->format
)) {
1014 /* Set the appropriate format for the decompressed texture.
1015 * Luminance and sRGB formats shouldn't appear here.*/
1016 switch (src_format
) {
1017 case PIPE_FORMAT_DXT1_RGB
:
1018 case PIPE_FORMAT_DXT1_RGBA
:
1019 case PIPE_FORMAT_DXT3_RGBA
:
1020 case PIPE_FORMAT_DXT5_RGBA
:
1021 case PIPE_FORMAT_RGTC1_UNORM
:
1022 case PIPE_FORMAT_RGTC2_UNORM
:
1023 case PIPE_FORMAT_ETC1_RGB8
:
1024 case PIPE_FORMAT_BPTC_RGBA_UNORM
:
1025 dst_glformat
= GL_RGBA8
;
1027 case PIPE_FORMAT_RGTC1_SNORM
:
1028 case PIPE_FORMAT_RGTC2_SNORM
:
1029 if (!ctx
->Extensions
.EXT_texture_snorm
)
1031 dst_glformat
= GL_RGBA8_SNORM
;
1033 case PIPE_FORMAT_BPTC_RGB_FLOAT
:
1034 case PIPE_FORMAT_BPTC_RGB_UFLOAT
:
1035 if (!ctx
->Extensions
.ARB_texture_float
)
1037 dst_glformat
= GL_RGBA32F
;
1044 dst_format
= st_choose_format(st
, dst_glformat
, format
, type
,
1045 pipe_target
, 0, bind
, FALSE
);
1047 if (dst_format
== PIPE_FORMAT_NONE
) {
1048 /* unable to get an rgba format!?! */
1053 /* create the destination texture */
1054 memset(&dst_templ
, 0, sizeof(dst_templ
));
1055 dst_templ
.target
= pipe_target
;
1056 dst_templ
.format
= dst_format
;
1057 dst_templ
.bind
= bind
;
1058 dst_templ
.usage
= PIPE_USAGE_STAGING
;
1060 st_gl_texture_dims_to_pipe_dims(gl_target
, width
, height
, depth
,
1061 &dst_templ
.width0
, &dst_templ
.height0
,
1062 &dst_templ
.depth0
, &dst_templ
.array_size
);
1064 dst
= screen
->resource_create(screen
, &dst_templ
);
1069 /* From now on, we need the gallium representation of dimensions. */
1070 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
1075 memset(&blit
, 0, sizeof(blit
));
1076 blit
.src
.resource
= src
;
1077 blit
.src
.level
= texImage
->Level
+ texImage
->TexObject
->MinLevel
;
1078 blit
.src
.format
= src_format
;
1079 blit
.dst
.resource
= dst
;
1081 blit
.dst
.format
= dst
->format
;
1082 blit
.src
.box
.x
= blit
.dst
.box
.x
= 0;
1083 blit
.src
.box
.y
= blit
.dst
.box
.y
= 0;
1084 blit
.src
.box
.z
= texImage
->Face
+ texImage
->TexObject
->MinLayer
;
1086 blit
.src
.box
.width
= blit
.dst
.box
.width
= width
;
1087 blit
.src
.box
.height
= blit
.dst
.box
.height
= height
;
1088 blit
.src
.box
.depth
= blit
.dst
.box
.depth
= depth
;
1089 blit
.mask
= st_get_blit_mask(texImage
->_BaseFormat
, format
);
1090 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
1091 blit
.scissor_enable
= FALSE
;
1093 /* blit/render/decompress */
1094 st
->pipe
->blit(st
->pipe
, &blit
);
1096 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
1098 map
= pipe_transfer_map_3d(pipe
, dst
, 0, PIPE_TRANSFER_READ
,
1099 0, 0, 0, width
, height
, depth
, &tex_xfer
);
1104 mesa_format
= st_pipe_format_to_mesa_format(dst_format
);
1106 /* copy/pack data into user buffer */
1107 if (_mesa_format_matches_format_and_type(mesa_format
, format
, type
,
1108 ctx
->Pack
.SwapBytes
)) {
1110 const uint bytesPerRow
= width
* util_format_get_blocksize(dst_format
);
1113 for (slice
= 0; slice
< depth
; slice
++) {
1114 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
1115 /* 1D array textures.
1116 * We need to convert gallium coords to GL coords.
1118 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1119 width
, depth
, format
,
1121 memcpy(dest
, map
, bytesPerRow
);
1124 ubyte
*slice_map
= map
;
1126 for (row
= 0; row
< height
; row
++) {
1127 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1128 width
, height
, format
,
1129 type
, slice
, row
, 0);
1130 memcpy(dest
, slice_map
, bytesPerRow
);
1131 slice_map
+= tex_xfer
->stride
;
1134 map
+= tex_xfer
->layer_stride
;
1138 /* format translation via floats */
1142 assert(util_format_is_compressed(src
->format
));
1144 rgba
= malloc(width
* 4 * sizeof(GLfloat
));
1149 if (ST_DEBUG
& DEBUG_FALLBACK
)
1150 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
1152 for (slice
= 0; slice
< depth
; slice
++) {
1153 if (gl_target
== GL_TEXTURE_1D_ARRAY
) {
1154 /* 1D array textures.
1155 * We need to convert gallium coords to GL coords.
1157 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1158 width
, depth
, format
,
1161 /* get float[4] rgba row from surface */
1162 pipe_get_tile_rgba_format(tex_xfer
, map
, 0, 0, width
, 1,
1165 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
1166 type
, dest
, &ctx
->Pack
, 0);
1169 for (row
= 0; row
< height
; row
++) {
1170 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
1171 width
, height
, format
,
1172 type
, slice
, row
, 0);
1174 /* get float[4] rgba row from surface */
1175 pipe_get_tile_rgba_format(tex_xfer
, map
, 0, row
, width
, 1,
1178 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
1179 type
, dest
, &ctx
->Pack
, 0);
1182 map
+= tex_xfer
->layer_stride
;
1191 pipe_transfer_unmap(pipe
, tex_xfer
);
1193 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
1194 pipe_resource_reference(&dst
, NULL
);
1198 _mesa_GetTexImage_sw(ctx
, format
, type
, pixels
, texImage
);
1204 * Do a CopyTexSubImage operation using a read transfer from the source,
1205 * a write transfer to the destination and get_tile()/put_tile() to access
1206 * the pixels/texels.
1208 * Note: srcY=0=TOP of renderbuffer
1211 fallback_copy_texsubimage(struct gl_context
*ctx
,
1212 struct st_renderbuffer
*strb
,
1213 struct st_texture_image
*stImage
,
1215 GLint destX
, GLint destY
, GLint slice
,
1216 GLint srcX
, GLint srcY
,
1217 GLsizei width
, GLsizei height
)
1219 struct st_context
*st
= st_context(ctx
);
1220 struct pipe_context
*pipe
= st
->pipe
;
1221 struct pipe_transfer
*src_trans
;
1223 enum pipe_transfer_usage transfer_usage
;
1225 unsigned dst_width
= width
;
1226 unsigned dst_height
= height
;
1227 unsigned dst_depth
= 1;
1228 struct pipe_transfer
*transfer
;
1230 if (ST_DEBUG
& DEBUG_FALLBACK
)
1231 debug_printf("%s: fallback processing\n", __FUNCTION__
);
1233 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1234 srcY
= strb
->Base
.Height
- srcY
- height
;
1237 map
= pipe_transfer_map(pipe
,
1239 strb
->surface
->u
.tex
.level
,
1240 strb
->surface
->u
.tex
.first_layer
,
1243 width
, height
, &src_trans
);
1245 if ((baseFormat
== GL_DEPTH_COMPONENT
||
1246 baseFormat
== GL_DEPTH_STENCIL
) &&
1247 util_format_is_depth_and_stencil(stImage
->pt
->format
))
1248 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
1250 transfer_usage
= PIPE_TRANSFER_WRITE
;
1252 texDest
= st_texture_image_map(st
, stImage
, transfer_usage
,
1253 destX
, destY
, slice
,
1254 dst_width
, dst_height
, dst_depth
,
1257 if (baseFormat
== GL_DEPTH_COMPONENT
||
1258 baseFormat
== GL_DEPTH_STENCIL
) {
1259 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
1260 ctx
->Pixel
.DepthBias
!= 0.0F
);
1264 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
1265 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1274 data
= malloc(width
* sizeof(uint
));
1277 /* To avoid a large temp memory allocation, do copy row by row */
1278 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
1279 pipe_get_tile_z(src_trans
, map
, 0, srcY
, width
, 1, data
);
1281 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
1284 if (stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
) {
1285 pipe_put_tile_z(transfer
, texDest
+ row
*transfer
->layer_stride
,
1286 0, 0, width
, 1, data
);
1289 pipe_put_tile_z(transfer
, texDest
, 0, row
, width
, 1, data
);
1294 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexSubImage()");
1302 malloc(width
* height
* 4 * sizeof(GLfloat
));
1304 if (tempSrc
&& texDest
) {
1305 const GLint dims
= 2;
1307 struct gl_texture_image
*texImage
= &stImage
->base
;
1308 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
1310 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
1311 unpack
.Invert
= GL_TRUE
;
1314 if (stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
) {
1315 dstRowStride
= transfer
->layer_stride
;
1318 dstRowStride
= transfer
->stride
;
1321 /* get float/RGBA image from framebuffer */
1322 /* XXX this usually involves a lot of int/float conversion.
1323 * try to avoid that someday.
1325 pipe_get_tile_rgba_format(src_trans
, map
, 0, 0, width
, height
,
1326 util_format_linear(strb
->texture
->format
),
1329 /* Store into texture memory.
1330 * Note that this does some special things such as pixel transfer
1331 * ops and format conversion. In particular, if the dest tex format
1332 * is actually RGBA but the user created the texture as GL_RGB we
1333 * need to fill-in/override the alpha channel with 1.0.
1335 _mesa_texstore(ctx
, dims
,
1336 texImage
->_BaseFormat
,
1337 texImage
->TexFormat
,
1341 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
1345 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
1351 st_texture_image_unmap(st
, stImage
, slice
);
1352 pipe
->transfer_unmap(pipe
, src_trans
);
1357 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1358 * Note that the region to copy has already been clipped so we know we
1359 * won't read from outside the source renderbuffer's bounds.
1361 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1364 st_CopyTexSubImage(struct gl_context
*ctx
, GLuint dims
,
1365 struct gl_texture_image
*texImage
,
1366 GLint destX
, GLint destY
, GLint slice
,
1367 struct gl_renderbuffer
*rb
,
1368 GLint srcX
, GLint srcY
, GLsizei width
, GLsizei height
)
1370 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1371 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
1372 struct st_renderbuffer
*strb
= st_renderbuffer(rb
);
1373 struct st_context
*st
= st_context(ctx
);
1374 struct pipe_context
*pipe
= st
->pipe
;
1375 struct pipe_screen
*screen
= pipe
->screen
;
1376 struct pipe_blit_info blit
;
1377 enum pipe_format dst_format
;
1378 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1382 assert(!_mesa_is_format_etc2(texImage
->TexFormat
) &&
1383 texImage
->TexFormat
!= MESA_FORMAT_ETC1_RGB8
);
1385 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1386 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1390 if (_mesa_texstore_needs_transfer_ops(ctx
, texImage
->_BaseFormat
,
1391 texImage
->TexFormat
)) {
1395 /* The base internal format must match the mesa format, so make sure
1396 * e.g. an RGB internal format is really allocated as RGB and not as RGBA.
1398 if (texImage
->_BaseFormat
!=
1399 _mesa_get_format_base_format(texImage
->TexFormat
) ||
1400 rb
->_BaseFormat
!= _mesa_get_format_base_format(rb
->Format
)) {
1404 /* Choose the destination format to match the TexImage behavior. */
1405 dst_format
= util_format_linear(stImage
->pt
->format
);
1406 dst_format
= util_format_luminance_to_red(dst_format
);
1407 dst_format
= util_format_intensity_to_red(dst_format
);
1409 /* See if the destination format is supported. */
1410 if (texImage
->_BaseFormat
== GL_DEPTH_STENCIL
||
1411 texImage
->_BaseFormat
== GL_DEPTH_COMPONENT
) {
1412 bind
= PIPE_BIND_DEPTH_STENCIL
;
1415 bind
= PIPE_BIND_RENDER_TARGET
;
1419 !screen
->is_format_supported(screen
, dst_format
, stImage
->pt
->target
,
1420 stImage
->pt
->nr_samples
, bind
)) {
1424 /* Y flipping for the main framebuffer. */
1426 srcY1
= strb
->Base
.Height
- srcY
- height
;
1427 srcY0
= srcY1
+ height
;
1431 srcY1
= srcY0
+ height
;
1434 /* Blit the texture.
1435 * This supports flipping, format conversions, and downsampling.
1437 memset(&blit
, 0, sizeof(blit
));
1438 blit
.src
.resource
= strb
->texture
;
1439 blit
.src
.format
= util_format_linear(strb
->surface
->format
);
1440 blit
.src
.level
= strb
->surface
->u
.tex
.level
;
1441 blit
.src
.box
.x
= srcX
;
1442 blit
.src
.box
.y
= srcY0
;
1443 blit
.src
.box
.z
= strb
->surface
->u
.tex
.first_layer
;
1444 blit
.src
.box
.width
= width
;
1445 blit
.src
.box
.height
= srcY1
- srcY0
;
1446 blit
.src
.box
.depth
= 1;
1447 blit
.dst
.resource
= stImage
->pt
;
1448 blit
.dst
.format
= dst_format
;
1449 blit
.dst
.level
= stObj
->pt
!= stImage
->pt
? 0 : texImage
->Level
+ texImage
->TexObject
->MinLevel
;
1450 blit
.dst
.box
.x
= destX
;
1451 blit
.dst
.box
.y
= destY
;
1452 blit
.dst
.box
.z
= stImage
->base
.Face
+ slice
+ texImage
->TexObject
->MinLayer
;
1453 blit
.dst
.box
.width
= width
;
1454 blit
.dst
.box
.height
= height
;
1455 blit
.dst
.box
.depth
= 1;
1456 blit
.mask
= st_get_blit_mask(rb
->_BaseFormat
, texImage
->_BaseFormat
);
1457 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
1458 pipe
->blit(pipe
, &blit
);
1462 /* software fallback */
1463 fallback_copy_texsubimage(ctx
,
1464 strb
, stImage
, texImage
->_BaseFormat
,
1465 destX
, destY
, slice
,
1466 srcX
, srcY
, width
, height
);
1471 * Copy image data from stImage into the texture object 'stObj' at level
1475 copy_image_data_to_texture(struct st_context
*st
,
1476 struct st_texture_object
*stObj
,
1478 struct st_texture_image
*stImage
)
1482 const struct gl_texture_image
*dstImage
=
1483 stObj
->base
.Image
[stImage
->base
.Face
][dstLevel
];
1485 assert(dstImage
->Width
== stImage
->base
.Width
);
1486 assert(dstImage
->Height
== stImage
->base
.Height
);
1487 assert(dstImage
->Depth
== stImage
->base
.Depth
);
1491 /* Copy potentially with the blitter:
1494 if (stImage
->pt
->last_level
== 0)
1497 src_level
= stImage
->base
.Level
;
1499 assert(src_level
<= stImage
->pt
->last_level
);
1500 assert(u_minify(stImage
->pt
->width0
, src_level
) == stImage
->base
.Width
);
1501 assert(stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
||
1502 u_minify(stImage
->pt
->height0
, src_level
) == stImage
->base
.Height
);
1503 assert(stImage
->pt
->target
== PIPE_TEXTURE_2D_ARRAY
||
1504 stImage
->pt
->target
== PIPE_TEXTURE_CUBE_ARRAY
||
1505 u_minify(stImage
->pt
->depth0
, src_level
) == stImage
->base
.Depth
);
1507 st_texture_image_copy(st
->pipe
,
1508 stObj
->pt
, dstLevel
, /* dest texture, level */
1509 stImage
->pt
, src_level
, /* src texture, level */
1510 stImage
->base
.Face
);
1512 pipe_resource_reference(&stImage
->pt
, NULL
);
1514 else if (stImage
->TexData
) {
1515 /* Copy from malloc'd memory */
1516 /* XXX this should be re-examined/tested with a compressed format */
1517 GLuint blockSize
= util_format_get_blocksize(stObj
->pt
->format
);
1518 GLuint srcRowStride
= stImage
->base
.Width
* blockSize
;
1519 GLuint srcSliceStride
= stImage
->base
.Height
* srcRowStride
;
1520 st_texture_image_data(st
,
1527 _mesa_align_free(stImage
->TexData
);
1528 stImage
->TexData
= NULL
;
1531 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1536 * Called during state validation. When this function is finished,
1537 * the texture object should be ready for rendering.
1538 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1541 st_finalize_texture(struct gl_context
*ctx
,
1542 struct pipe_context
*pipe
,
1543 struct gl_texture_object
*tObj
)
1545 struct st_context
*st
= st_context(ctx
);
1546 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1547 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1549 const struct st_texture_image
*firstImage
;
1550 enum pipe_format firstImageFormat
;
1551 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
, ptNumSamples
;
1553 if (tObj
->Immutable
)
1556 if (_mesa_is_texture_complete(tObj
, &tObj
->Sampler
)) {
1557 /* The texture is complete and we know exactly how many mipmap levels
1558 * are present/needed. This is conditional because we may be called
1559 * from the st_generate_mipmap() function when the texture object is
1560 * incomplete. In that case, we'll have set stObj->lastLevel before
1563 if (stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
1564 stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
)
1565 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1567 stObj
->lastLevel
= stObj
->base
._MaxLevel
;
1570 if (tObj
->Target
== GL_TEXTURE_BUFFER
) {
1571 struct st_buffer_object
*st_obj
= st_buffer_object(tObj
->BufferObject
);
1574 pipe_resource_reference(&stObj
->pt
, NULL
);
1575 st_texture_release_all_sampler_views(st
, stObj
);
1579 if (st_obj
->buffer
!= stObj
->pt
) {
1580 pipe_resource_reference(&stObj
->pt
, st_obj
->buffer
);
1581 st_texture_release_all_sampler_views(st
, stObj
);
1582 stObj
->width0
= stObj
->pt
->width0
/ _mesa_get_format_bytes(tObj
->_BufferObjectFormat
);
1590 firstImage
= st_texture_image_const(_mesa_base_tex_image(&stObj
->base
));
1593 /* If both firstImage and stObj point to a texture which can contain
1594 * all active images, favour firstImage. Note that because of the
1595 * completeness requirement, we know that the image dimensions
1598 if (firstImage
->pt
&&
1599 firstImage
->pt
!= stObj
->pt
&&
1600 (!stObj
->pt
|| firstImage
->pt
->last_level
>= stObj
->pt
->last_level
)) {
1601 pipe_resource_reference(&stObj
->pt
, firstImage
->pt
);
1602 st_texture_release_all_sampler_views(st
, stObj
);
1605 /* If this texture comes from a window system, there is nothing else to do. */
1606 if (stObj
->surface_based
) {
1610 /* Find gallium format for the Mesa texture */
1612 st_mesa_format_to_pipe_format(st
, firstImage
->base
.TexFormat
);
1614 /* Find size of level=0 Gallium mipmap image, plus number of texture layers */
1616 GLuint width
, height
, depth
;
1617 if (!guess_base_level_size(stObj
->base
.Target
,
1618 firstImage
->base
.Width2
,
1619 firstImage
->base
.Height2
,
1620 firstImage
->base
.Depth2
,
1621 firstImage
->base
.Level
,
1622 &width
, &height
, &depth
)) {
1623 width
= stObj
->width0
;
1624 height
= stObj
->height0
;
1625 depth
= stObj
->depth0
;
1627 /* convert GL dims to Gallium dims */
1628 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
, width
, height
, depth
,
1629 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1630 ptNumSamples
= firstImage
->base
.NumSamples
;
1633 /* If we already have a gallium texture, check that it matches the texture
1634 * object's format, target, size, num_levels, etc.
1637 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1638 stObj
->pt
->format
!= firstImageFormat
||
1639 stObj
->pt
->last_level
< stObj
->lastLevel
||
1640 stObj
->pt
->width0
!= ptWidth
||
1641 stObj
->pt
->height0
!= ptHeight
||
1642 stObj
->pt
->depth0
!= ptDepth
||
1643 stObj
->pt
->nr_samples
!= ptNumSamples
||
1644 stObj
->pt
->array_size
!= ptLayers
)
1646 /* The gallium texture does not match the Mesa texture so delete the
1647 * gallium texture now. We'll make a new one below.
1649 pipe_resource_reference(&stObj
->pt
, NULL
);
1650 st_texture_release_all_sampler_views(st
, stObj
);
1651 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1655 /* May need to create a new gallium texture:
1658 GLuint bindings
= default_bindings(st
, firstImageFormat
);
1660 stObj
->pt
= st_texture_create(st
,
1661 gl_target_to_pipe(stObj
->base
.Target
),
1667 ptLayers
, ptNumSamples
,
1671 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1676 /* Pull in any images not in the object's texture:
1678 for (face
= 0; face
< nr_faces
; face
++) {
1680 for (level
= stObj
->base
.BaseLevel
; level
<= stObj
->lastLevel
; level
++) {
1681 struct st_texture_image
*stImage
=
1682 st_texture_image(stObj
->base
.Image
[face
][level
]);
1684 /* Need to import images in main memory or held in other textures.
1686 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1688 (stImage
->base
.Width
== u_minify(stObj
->width0
, level
) &&
1689 stImage
->base
.Height
== u_minify(stObj
->height0
, level
) &&
1690 stImage
->base
.Depth
== u_minify(stObj
->depth0
, level
))) {
1691 /* src image fits expected dest mipmap level size */
1692 copy_image_data_to_texture(st
, stObj
, level
, stImage
);
1703 * Called via ctx->Driver.AllocTextureStorage() to allocate texture memory
1704 * for a whole mipmap stack.
1707 st_AllocTextureStorage(struct gl_context
*ctx
,
1708 struct gl_texture_object
*texObj
,
1709 GLsizei levels
, GLsizei width
,
1710 GLsizei height
, GLsizei depth
)
1712 const GLuint numFaces
= _mesa_num_tex_faces(texObj
->Target
);
1713 struct gl_texture_image
*texImage
= texObj
->Image
[0][0];
1714 struct st_context
*st
= st_context(ctx
);
1715 struct st_texture_object
*stObj
= st_texture_object(texObj
);
1716 struct pipe_screen
*screen
= st
->pipe
->screen
;
1717 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
, bindings
;
1718 enum pipe_format fmt
;
1720 GLuint num_samples
= texImage
->NumSamples
;
1724 /* Save the level=0 dimensions */
1725 stObj
->width0
= width
;
1726 stObj
->height0
= height
;
1727 stObj
->depth0
= depth
;
1728 stObj
->lastLevel
= levels
- 1;
1730 fmt
= st_mesa_format_to_pipe_format(st
, texImage
->TexFormat
);
1732 bindings
= default_bindings(st
, fmt
);
1734 /* Raise the sample count if the requested one is unsupported. */
1735 if (num_samples
> 1) {
1736 boolean found
= FALSE
;
1738 for (; num_samples
<= ctx
->Const
.MaxSamples
; num_samples
++) {
1739 if (screen
->is_format_supported(screen
, fmt
, PIPE_TEXTURE_2D
,
1741 PIPE_BIND_SAMPLER_VIEW
)) {
1742 /* Update the sample count in gl_texture_image as well. */
1743 texImage
->NumSamples
= num_samples
;
1754 st_gl_texture_dims_to_pipe_dims(texObj
->Target
,
1755 width
, height
, depth
,
1756 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1758 stObj
->pt
= st_texture_create(st
,
1759 gl_target_to_pipe(texObj
->Target
),
1765 ptLayers
, num_samples
,
1770 /* Set image resource pointers */
1771 for (level
= 0; level
< levels
; level
++) {
1773 for (face
= 0; face
< numFaces
; face
++) {
1774 struct st_texture_image
*stImage
=
1775 st_texture_image(texObj
->Image
[face
][level
]);
1776 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1785 st_TestProxyTexImage(struct gl_context
*ctx
, GLenum target
,
1786 GLint level
, mesa_format format
,
1787 GLint width
, GLint height
,
1788 GLint depth
, GLint border
)
1790 struct st_context
*st
= st_context(ctx
);
1791 struct pipe_context
*pipe
= st
->pipe
;
1793 if (width
== 0 || height
== 0 || depth
== 0) {
1794 /* zero-sized images are legal, and always fit! */
1798 if (pipe
->screen
->can_create_resource
) {
1799 /* Ask the gallium driver if the texture is too large */
1800 struct gl_texture_object
*texObj
=
1801 _mesa_get_current_tex_object(ctx
, target
);
1802 struct pipe_resource pt
;
1804 /* Setup the pipe_resource object
1806 memset(&pt
, 0, sizeof(pt
));
1808 pt
.target
= gl_target_to_pipe(target
);
1809 pt
.format
= st_mesa_format_to_pipe_format(st
, format
);
1811 st_gl_texture_dims_to_pipe_dims(target
,
1812 width
, height
, depth
,
1813 &pt
.width0
, &pt
.height0
,
1814 &pt
.depth0
, &pt
.array_size
);
1816 if (level
== 0 && (texObj
->Sampler
.MinFilter
== GL_LINEAR
||
1817 texObj
->Sampler
.MinFilter
== GL_NEAREST
)) {
1818 /* assume just one mipmap level */
1822 /* assume a full set of mipmaps */
1823 pt
.last_level
= _mesa_logbase2(MAX3(width
, height
, depth
));
1826 return pipe
->screen
->can_create_resource(pipe
->screen
, &pt
);
1829 /* Use core Mesa fallback */
1830 return _mesa_test_proxy_teximage(ctx
, target
, level
, format
,
1831 width
, height
, depth
, border
);
1836 st_TextureView(struct gl_context
*ctx
,
1837 struct gl_texture_object
*texObj
,
1838 struct gl_texture_object
*origTexObj
)
1840 struct st_texture_object
*orig
= st_texture_object(origTexObj
);
1841 struct st_texture_object
*tex
= st_texture_object(texObj
);
1842 struct gl_texture_image
*image
= texObj
->Image
[0][0];
1844 const int numFaces
= _mesa_num_tex_faces(texObj
->Target
);
1845 const int numLevels
= texObj
->NumLevels
;
1850 pipe_resource_reference(&tex
->pt
, orig
->pt
);
1852 /* Set image resource pointers */
1853 for (level
= 0; level
< numLevels
; level
++) {
1854 for (face
= 0; face
< numFaces
; face
++) {
1855 struct st_texture_image
*stImage
=
1856 st_texture_image(texObj
->Image
[face
][level
]);
1857 pipe_resource_reference(&stImage
->pt
, tex
->pt
);
1861 tex
->surface_based
= GL_TRUE
;
1862 tex
->surface_format
=
1863 st_mesa_format_to_pipe_format(st_context(ctx
), image
->TexFormat
);
1865 tex
->width0
= image
->Width
;
1866 tex
->height0
= image
->Height
;
1867 tex
->depth0
= image
->Depth
;
1868 tex
->lastLevel
= numLevels
- 1;
1875 st_init_texture_functions(struct dd_function_table
*functions
)
1877 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1878 functions
->QuerySamplesForFormat
= st_QuerySamplesForFormat
;
1879 functions
->TexImage
= st_TexImage
;
1880 functions
->TexSubImage
= st_TexSubImage
;
1881 functions
->CompressedTexSubImage
= _mesa_store_compressed_texsubimage
;
1882 functions
->CopyTexSubImage
= st_CopyTexSubImage
;
1883 functions
->GenerateMipmap
= st_generate_mipmap
;
1885 functions
->GetTexImage
= st_GetTexImage
;
1887 /* compressed texture functions */
1888 functions
->CompressedTexImage
= st_CompressedTexImage
;
1889 functions
->GetCompressedTexImage
= _mesa_GetCompressedTexImage_sw
;
1891 functions
->NewTextureObject
= st_NewTextureObject
;
1892 functions
->NewTextureImage
= st_NewTextureImage
;
1893 functions
->DeleteTextureImage
= st_DeleteTextureImage
;
1894 functions
->DeleteTexture
= st_DeleteTextureObject
;
1895 functions
->AllocTextureImageBuffer
= st_AllocTextureImageBuffer
;
1896 functions
->FreeTextureImageBuffer
= st_FreeTextureImageBuffer
;
1897 functions
->MapTextureImage
= st_MapTextureImage
;
1898 functions
->UnmapTextureImage
= st_UnmapTextureImage
;
1900 /* XXX Temporary until we can query pipe's texture sizes */
1901 functions
->TestProxyTexImage
= st_TestProxyTexImage
;
1903 functions
->AllocTextureStorage
= st_AllocTextureStorage
;
1904 functions
->TextureView
= st_TextureView
;