1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
28 #include "main/mfeatures.h"
29 #include "main/bufferobj.h"
30 #include "main/enums.h"
31 #include "main/fbobject.h"
32 #include "main/formats.h"
33 #include "main/image.h"
34 #include "main/imports.h"
35 #include "main/macros.h"
36 #include "main/mipmap.h"
37 #include "main/pack.h"
39 #include "main/pixeltransfer.h"
40 #include "main/texcompress.h"
41 #include "main/texgetimage.h"
42 #include "main/teximage.h"
43 #include "main/texobj.h"
44 #include "main/texstore.h"
46 #include "state_tracker/st_debug.h"
47 #include "state_tracker/st_context.h"
48 #include "state_tracker/st_cb_fbo.h"
49 #include "state_tracker/st_cb_flush.h"
50 #include "state_tracker/st_cb_texture.h"
51 #include "state_tracker/st_cb_bufferobjects.h"
52 #include "state_tracker/st_format.h"
53 #include "state_tracker/st_texture.h"
54 #include "state_tracker/st_gen_mipmap.h"
55 #include "state_tracker/st_atom.h"
57 #include "pipe/p_context.h"
58 #include "pipe/p_defines.h"
59 #include "util/u_inlines.h"
60 #include "pipe/p_shader_tokens.h"
61 #include "util/u_tile.h"
62 #include "util/u_blit.h"
63 #include "util/u_format.h"
64 #include "util/u_surface.h"
65 #include "util/u_sampler.h"
66 #include "util/u_math.h"
67 #include "util/u_box.h"
69 #define DBG if (0) printf
72 static enum pipe_texture_target
73 gl_target_to_pipe(GLenum target
)
77 case GL_PROXY_TEXTURE_1D
:
78 return PIPE_TEXTURE_1D
;
80 case GL_PROXY_TEXTURE_2D
:
81 case GL_TEXTURE_EXTERNAL_OES
:
82 return PIPE_TEXTURE_2D
;
83 case GL_TEXTURE_RECTANGLE_NV
:
84 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
85 return PIPE_TEXTURE_RECT
;
87 case GL_PROXY_TEXTURE_3D
:
88 return PIPE_TEXTURE_3D
;
89 case GL_TEXTURE_CUBE_MAP_ARB
:
90 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
91 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
92 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
93 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
94 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
95 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
96 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
97 return PIPE_TEXTURE_CUBE
;
98 case GL_TEXTURE_1D_ARRAY_EXT
:
99 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
100 return PIPE_TEXTURE_1D_ARRAY
;
101 case GL_TEXTURE_2D_ARRAY_EXT
:
102 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
103 return PIPE_TEXTURE_2D_ARRAY
;
104 case GL_TEXTURE_BUFFER
:
106 case GL_TEXTURE_CUBE_MAP_ARRAY
:
107 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY
:
108 return PIPE_TEXTURE_CUBE_ARRAY
;
116 /** called via ctx->Driver.NewTextureImage() */
117 static struct gl_texture_image
*
118 st_NewTextureImage(struct gl_context
* ctx
)
120 DBG("%s\n", __FUNCTION__
);
122 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
126 /** called via ctx->Driver.DeleteTextureImage() */
128 st_DeleteTextureImage(struct gl_context
* ctx
, struct gl_texture_image
*img
)
130 /* nothing special (yet) for st_texture_image */
131 _mesa_delete_texture_image(ctx
, img
);
135 /** called via ctx->Driver.NewTextureObject() */
136 static struct gl_texture_object
*
137 st_NewTextureObject(struct gl_context
* ctx
, GLuint name
, GLenum target
)
139 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
141 DBG("%s\n", __FUNCTION__
);
142 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
147 /** called via ctx->Driver.DeleteTextureObject() */
149 st_DeleteTextureObject(struct gl_context
*ctx
,
150 struct gl_texture_object
*texObj
)
152 struct st_context
*st
= st_context(ctx
);
153 struct st_texture_object
*stObj
= st_texture_object(texObj
);
155 pipe_resource_reference(&stObj
->pt
, NULL
);
156 if (stObj
->sampler_view
) {
157 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
159 _mesa_delete_texture_object(ctx
, texObj
);
163 /** called via ctx->Driver.FreeTextureImageBuffer() */
165 st_FreeTextureImageBuffer(struct gl_context
*ctx
,
166 struct gl_texture_image
*texImage
)
168 struct st_texture_image
*stImage
= st_texture_image(texImage
);
170 DBG("%s\n", __FUNCTION__
);
173 pipe_resource_reference(&stImage
->pt
, NULL
);
176 if (stImage
->TexData
) {
177 _mesa_align_free(stImage
->TexData
);
178 stImage
->TexData
= NULL
;
183 /** called via ctx->Driver.MapTextureImage() */
185 st_MapTextureImage(struct gl_context
*ctx
,
186 struct gl_texture_image
*texImage
,
187 GLuint slice
, GLuint x
, GLuint y
, GLuint w
, GLuint h
,
189 GLubyte
**mapOut
, GLint
*rowStrideOut
)
191 struct st_context
*st
= st_context(ctx
);
192 struct st_texture_image
*stImage
= st_texture_image(texImage
);
197 if (mode
& GL_MAP_READ_BIT
)
198 pipeMode
|= PIPE_TRANSFER_READ
;
199 if (mode
& GL_MAP_WRITE_BIT
)
200 pipeMode
|= PIPE_TRANSFER_WRITE
;
201 if (mode
& GL_MAP_INVALIDATE_RANGE_BIT
)
202 pipeMode
|= PIPE_TRANSFER_DISCARD_RANGE
;
204 map
= st_texture_image_map(st
, stImage
, pipeMode
, x
, y
, slice
, w
, h
, 1);
207 *rowStrideOut
= stImage
->transfer
->stride
;
216 /** called via ctx->Driver.UnmapTextureImage() */
218 st_UnmapTextureImage(struct gl_context
*ctx
,
219 struct gl_texture_image
*texImage
,
222 struct st_context
*st
= st_context(ctx
);
223 struct st_texture_image
*stImage
= st_texture_image(texImage
);
224 st_texture_image_unmap(st
, stImage
);
229 * Return default texture resource binding bitmask for the given format.
232 default_bindings(struct st_context
*st
, enum pipe_format format
)
234 struct pipe_screen
*screen
= st
->pipe
->screen
;
235 const unsigned target
= PIPE_TEXTURE_2D
;
238 if (util_format_is_depth_or_stencil(format
))
239 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_DEPTH_STENCIL
;
241 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_RENDER_TARGET
;
243 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
247 format
= util_format_linear(format
);
249 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
252 return PIPE_BIND_SAMPLER_VIEW
;
258 * Given the size of a mipmap image, try to compute the size of the level=0
261 * Note that this isn't always accurate for odd-sized, non-POW textures.
262 * For example, if level=1 and width=40 then the level=0 width may be 80 or 81.
264 * \return GL_TRUE for success, GL_FALSE for failure
267 guess_base_level_size(GLenum target
,
268 GLuint width
, GLuint height
, GLuint depth
, GLuint level
,
269 GLuint
*width0
, GLuint
*height0
, GLuint
*depth0
)
276 /* Guess the size of the base level.
277 * Depending on the image's size, we can't always make a guess here.
281 case GL_TEXTURE_1D_ARRAY
:
286 case GL_TEXTURE_2D_ARRAY
:
287 /* We can't make a good guess here, because the base level dimensions
290 if (width
== 1 || height
== 1) {
297 case GL_TEXTURE_CUBE_MAP
:
298 case GL_TEXTURE_CUBE_MAP_ARRAY
:
304 /* We can't make a good guess here, because the base level dimensions
307 if (width
== 1 || height
== 1 || depth
== 1) {
315 case GL_TEXTURE_RECTANGLE
:
332 * Try to allocate a pipe_resource object for the given st_texture_object.
334 * We use the given st_texture_image as a clue to determine the size of the
335 * mipmap image at level=0.
337 * \return GL_TRUE for success, GL_FALSE if out of memory.
340 guess_and_alloc_texture(struct st_context
*st
,
341 struct st_texture_object
*stObj
,
342 const struct st_texture_image
*stImage
)
344 GLuint lastLevel
, width
, height
, depth
;
346 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
347 enum pipe_format fmt
;
349 DBG("%s\n", __FUNCTION__
);
353 if (!guess_base_level_size(stObj
->base
.Target
,
354 stImage
->base
.Width2
,
355 stImage
->base
.Height2
,
356 stImage
->base
.Depth2
,
358 &width
, &height
, &depth
)) {
359 /* we can't determine the image size at level=0 */
360 stObj
->width0
= stObj
->height0
= stObj
->depth0
= 0;
361 /* this is not an out of memory error */
365 /* At this point, (width x height x depth) is the expected size of
366 * the level=0 mipmap image.
369 /* Guess a reasonable value for lastLevel. With OpenGL we have no
370 * idea how many mipmap levels will be in a texture until we start
371 * to render with it. Make an educated guess here but be prepared
372 * to re-allocating a texture buffer with space for more (or fewer)
373 * mipmap levels later.
375 if ((stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
||
376 stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
377 (stObj
->base
.BaseLevel
== 0 &&
378 stObj
->base
.MaxLevel
== 0) ||
379 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
380 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
381 !stObj
->base
.GenerateMipmap
&&
382 stImage
->base
.Level
== 0) {
383 /* only alloc space for a single mipmap level */
387 /* alloc space for a full mipmap */
388 lastLevel
= _mesa_get_tex_max_num_levels(stObj
->base
.Target
,
389 width
, height
, depth
) - 1;
392 /* Save the level=0 dimensions */
393 stObj
->width0
= width
;
394 stObj
->height0
= height
;
395 stObj
->depth0
= depth
;
397 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
);
399 bindings
= default_bindings(st
, fmt
);
401 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
402 width
, height
, depth
,
403 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
405 stObj
->pt
= st_texture_create(st
,
406 gl_target_to_pipe(stObj
->base
.Target
),
415 stObj
->lastLevel
= lastLevel
;
417 DBG("%s returning %d\n", __FUNCTION__
, (stObj
->pt
!= NULL
));
419 return stObj
->pt
!= NULL
;
424 * Called via ctx->Driver.AllocTextureImageBuffer().
425 * If the texture object/buffer already has space for the indicated image,
426 * we're done. Otherwise, allocate memory for the new texture image.
429 st_AllocTextureImageBuffer(struct gl_context
*ctx
,
430 struct gl_texture_image
*texImage
)
432 struct st_context
*st
= st_context(ctx
);
433 struct st_texture_image
*stImage
= st_texture_image(texImage
);
434 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
435 const GLuint level
= texImage
->Level
;
436 GLuint width
= texImage
->Width
;
437 GLuint height
= texImage
->Height
;
438 GLuint depth
= texImage
->Depth
;
440 DBG("%s\n", __FUNCTION__
);
442 assert(!stImage
->TexData
);
443 assert(!stImage
->pt
); /* xxx this might be wrong */
445 /* Look if the parent texture object has space for this image */
447 level
<= stObj
->pt
->last_level
&&
448 st_texture_match_image(stObj
->pt
, texImage
)) {
449 /* this image will fit in the existing texture object's memory */
450 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
454 /* The parent texture object does not have space for this image */
456 pipe_resource_reference(&stObj
->pt
, NULL
);
457 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
459 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
460 /* Probably out of memory.
461 * Try flushing any pending rendering, then retry.
464 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
465 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
471 st_texture_match_image(stObj
->pt
, texImage
)) {
472 /* The image will live in the object's mipmap memory */
473 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
478 /* Create a new, temporary texture/resource/buffer to hold this
479 * one texture image. Note that when we later access this image
480 * (either for mapping or copying) we'll want to always specify
481 * mipmap level=0, even if the image represents some other mipmap
484 enum pipe_format format
=
485 st_mesa_format_to_pipe_format(texImage
->TexFormat
);
486 GLuint bindings
= default_bindings(st
, format
);
487 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
489 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
490 width
, height
, depth
,
491 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
493 stImage
->pt
= st_texture_create(st
,
494 gl_target_to_pipe(stObj
->base
.Target
),
502 return stImage
->pt
!= NULL
;
508 * Preparation prior to glTexImage. Basically check the 'surface_based'
509 * field and switch to a "normal" tex image if necessary.
512 prep_teximage(struct gl_context
*ctx
, struct gl_texture_image
*texImage
,
513 GLenum format
, GLenum type
)
515 struct gl_texture_object
*texObj
= texImage
->TexObject
;
516 struct st_texture_object
*stObj
= st_texture_object(texObj
);
518 /* switch to "normal" */
519 if (stObj
->surface_based
) {
520 const GLenum target
= texObj
->Target
;
521 const GLuint level
= texImage
->Level
;
524 _mesa_clear_texture_object(ctx
, texObj
);
525 pipe_resource_reference(&stObj
->pt
, NULL
);
527 /* oops, need to init this image again */
528 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
529 texImage
->InternalFormat
, format
,
532 _mesa_init_teximage_fields(ctx
, texImage
,
533 texImage
->Width
, texImage
->Height
,
534 texImage
->Depth
, texImage
->Border
,
535 texImage
->InternalFormat
, texFormat
);
537 stObj
->surface_based
= GL_FALSE
;
543 st_TexImage(struct gl_context
* ctx
, GLuint dims
,
544 struct gl_texture_image
*texImage
,
545 GLenum format
, GLenum type
, const void *pixels
,
546 const struct gl_pixelstore_attrib
*unpack
)
548 prep_teximage(ctx
, texImage
, format
, type
);
549 _mesa_store_teximage(ctx
, dims
, texImage
, format
, type
, pixels
, unpack
);
554 st_CompressedTexImage(struct gl_context
*ctx
, GLuint dims
,
555 struct gl_texture_image
*texImage
,
556 GLsizei imageSize
, const GLvoid
*data
)
558 prep_teximage(ctx
, texImage
, GL_NONE
, GL_NONE
);
559 _mesa_store_compressed_teximage(ctx
, dims
, texImage
, imageSize
, data
);
565 * glGetTexImage() helper: decompress a compressed texture by rendering
566 * a textured quad. Store the results in the user's buffer.
569 decompress_with_blit(struct gl_context
* ctx
,
570 GLenum format
, GLenum type
, GLvoid
*pixels
,
571 struct gl_texture_image
*texImage
)
573 struct st_context
*st
= st_context(ctx
);
574 struct pipe_context
*pipe
= st
->pipe
;
575 struct pipe_screen
*screen
= pipe
->screen
;
576 const GLuint width
= texImage
->Width
;
577 const GLuint height
= texImage
->Height
;
578 const GLuint depth
= texImage
->Depth
;
579 struct pipe_resource
*src
= st_texture_object(texImage
->TexObject
)->pt
;
580 struct pipe_resource
*dst
;
581 struct pipe_resource dst_templ
;
582 enum pipe_format pipe_format
;
583 gl_format mesa_format
;
584 GLenum gl_target
= texImage
->TexObject
->Target
;
585 enum pipe_texture_target pipe_target
;
586 struct pipe_blit_info blit
;
587 unsigned bind
= (PIPE_BIND_RENDER_TARGET
| PIPE_BIND_TRANSFER_READ
);
588 struct pipe_transfer
*tex_xfer
;
591 /* GetTexImage only returns a single face for cubemaps. */
592 if (gl_target
== GL_TEXTURE_CUBE_MAP
) {
593 gl_target
= GL_TEXTURE_2D
;
596 pipe_target
= gl_target_to_pipe(gl_target
);
598 /* Find the best match for the format+type combo. */
599 pipe_format
= st_choose_format(pipe
->screen
, GL_RGBA8
, format
, type
,
600 pipe_target
, 0, bind
, FALSE
);
601 if (pipe_format
== PIPE_FORMAT_NONE
) {
602 /* unable to get an rgba format!?! */
603 _mesa_problem(ctx
, "%s: cannot find a supported format", __func__
);
607 /* create the destination texture */
608 memset(&dst_templ
, 0, sizeof(dst_templ
));
609 dst_templ
.target
= pipe_target
;
610 dst_templ
.format
= pipe_format
;
611 dst_templ
.bind
= bind
;
612 dst_templ
.usage
= PIPE_USAGE_STAGING
;
614 st_gl_texture_dims_to_pipe_dims(gl_target
, width
, height
, depth
,
615 &dst_templ
.width0
, &dst_templ
.height0
,
616 &dst_templ
.depth0
, &dst_templ
.array_size
);
618 dst
= screen
->resource_create(screen
, &dst_templ
);
620 _mesa_problem(ctx
, "%s: cannot create a temporary texture", __func__
);
624 blit
.src
.resource
= src
;
625 blit
.src
.level
= texImage
->Level
;
626 blit
.src
.format
= util_format_linear(src
->format
);
627 blit
.dst
.resource
= dst
;
629 blit
.dst
.format
= dst
->format
;
630 blit
.src
.box
.x
= blit
.dst
.box
.x
= 0;
631 blit
.src
.box
.y
= blit
.dst
.box
.y
= 0;
632 blit
.src
.box
.z
= texImage
->Face
;
634 blit
.src
.box
.width
= blit
.dst
.box
.width
= width
;
635 blit
.src
.box
.height
= blit
.dst
.box
.height
= height
;
636 blit
.src
.box
.depth
= blit
.dst
.box
.depth
= depth
;
637 blit
.mask
= PIPE_MASK_RGBA
;
638 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
639 blit
.scissor_enable
= FALSE
;
641 /* blit/render/decompress */
642 st
->pipe
->blit(st
->pipe
, &blit
);
644 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
646 map
= pipe_transfer_map_3d(pipe
, dst
, 0, PIPE_TRANSFER_READ
,
647 0, 0, 0, width
, height
, depth
, &tex_xfer
);
652 mesa_format
= st_pipe_format_to_mesa_format(pipe_format
);
654 /* copy/pack data into user buffer */
655 if (_mesa_format_matches_format_and_type(mesa_format
, format
, type
,
656 ctx
->Pack
.SwapBytes
)) {
658 const uint bytesPerRow
= width
* util_format_get_blocksize(pipe_format
);
661 for (slice
= 0; slice
< depth
; slice
++) {
662 ubyte
*slice_map
= map
;
664 for (row
= 0; row
< height
; row
++) {
665 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
666 width
, height
, format
,
667 type
, slice
, row
, 0);
668 memcpy(dest
, slice_map
, bytesPerRow
);
669 slice_map
+= tex_xfer
->stride
;
671 map
+= tex_xfer
->layer_stride
;
675 /* format translation via floats */
677 enum pipe_format pformat
= util_format_linear(dst
->format
);
680 rgba
= malloc(width
* 4 * sizeof(GLfloat
));
682 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glGetTexImage()");
686 for (slice
= 0; slice
< depth
; slice
++) {
687 for (row
= 0; row
< height
; row
++) {
688 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
689 GLvoid
*dest
= _mesa_image_address3d(&ctx
->Pack
, pixels
,
690 width
, height
, format
,
691 type
, slice
, row
, 0);
693 if (ST_DEBUG
& DEBUG_FALLBACK
)
694 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
696 /* get float[4] rgba row from surface */
697 pipe_get_tile_rgba_format(tex_xfer
, map
, 0, row
, width
, 1,
700 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
701 type
, dest
, &ctx
->Pack
, transferOps
);
703 map
+= tex_xfer
->layer_stride
;
711 pipe_transfer_unmap(pipe
, tex_xfer
);
713 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
714 pipe_resource_reference(&dst
, NULL
);
720 * Called via ctx->Driver.GetTexImage()
723 st_GetTexImage(struct gl_context
* ctx
,
724 GLenum format
, GLenum type
, GLvoid
* pixels
,
725 struct gl_texture_image
*texImage
)
727 struct st_texture_image
*stImage
= st_texture_image(texImage
);
729 if (stImage
->pt
&& util_format_is_s3tc(stImage
->pt
->format
)) {
730 /* Need to decompress the texture.
731 * We'll do this by rendering a textured quad (which is hopefully
732 * faster than using the fallback code in texcompress.c).
733 * Note that we only expect RGBA formats (no Z/depth formats).
735 decompress_with_blit(ctx
, format
, type
, pixels
, texImage
);
738 _mesa_get_teximage(ctx
, format
, type
, pixels
, texImage
);
744 * Do a CopyTexSubImage operation using a read transfer from the source,
745 * a write transfer to the destination and get_tile()/put_tile() to access
748 * Note: srcY=0=TOP of renderbuffer
751 fallback_copy_texsubimage(struct gl_context
*ctx
,
752 struct st_renderbuffer
*strb
,
753 struct st_texture_image
*stImage
,
755 GLint destX
, GLint destY
, GLint destZ
,
756 GLint srcX
, GLint srcY
,
757 GLsizei width
, GLsizei height
)
759 struct st_context
*st
= st_context(ctx
);
760 struct pipe_context
*pipe
= st
->pipe
;
761 struct pipe_transfer
*src_trans
;
763 enum pipe_transfer_usage transfer_usage
;
765 unsigned dst_width
= width
;
766 unsigned dst_height
= height
;
767 unsigned dst_depth
= 1;
769 if (ST_DEBUG
& DEBUG_FALLBACK
)
770 debug_printf("%s: fallback processing\n", __FUNCTION__
);
772 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
773 srcY
= strb
->Base
.Height
- srcY
- height
;
776 if (stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
) {
777 /* Move y/height to z/depth for 1D array textures. */
780 dst_depth
= dst_height
;
784 map
= pipe_transfer_map(pipe
,
787 strb
->rtt_face
+ strb
->rtt_slice
,
790 width
, height
, &src_trans
);
792 if ((baseFormat
== GL_DEPTH_COMPONENT
||
793 baseFormat
== GL_DEPTH_STENCIL
) &&
794 util_format_is_depth_and_stencil(stImage
->pt
->format
))
795 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
797 transfer_usage
= PIPE_TRANSFER_WRITE
;
799 texDest
= st_texture_image_map(st
, stImage
, transfer_usage
,
801 dst_width
, dst_height
, dst_depth
);
803 if (baseFormat
== GL_DEPTH_COMPONENT
||
804 baseFormat
== GL_DEPTH_STENCIL
) {
805 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
806 ctx
->Pixel
.DepthBias
!= 0.0F
);
810 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
811 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
820 data
= malloc(width
* sizeof(uint
));
823 /* To avoid a large temp memory allocation, do copy row by row */
824 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
825 pipe_get_tile_z(src_trans
, map
, 0, srcY
, width
, 1, data
);
827 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
830 if (stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
) {
831 pipe_put_tile_z(stImage
->transfer
,
832 texDest
+ row
*stImage
->transfer
->layer_stride
,
833 0, 0, width
, 1, data
);
836 pipe_put_tile_z(stImage
->transfer
, texDest
, 0, row
, width
, 1,
842 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexSubImage()");
850 malloc(width
* height
* 4 * sizeof(GLfloat
));
852 if (tempSrc
&& texDest
) {
853 const GLint dims
= 2;
855 struct gl_texture_image
*texImage
= &stImage
->base
;
856 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
858 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
859 unpack
.Invert
= GL_TRUE
;
862 if (stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
) {
863 dstRowStride
= stImage
->transfer
->layer_stride
;
866 dstRowStride
= stImage
->transfer
->stride
;
869 /* get float/RGBA image from framebuffer */
870 /* XXX this usually involves a lot of int/float conversion.
871 * try to avoid that someday.
873 pipe_get_tile_rgba_format(src_trans
, map
, 0, 0, width
, height
,
874 util_format_linear(strb
->texture
->format
),
877 /* Store into texture memory.
878 * Note that this does some special things such as pixel transfer
879 * ops and format conversion. In particular, if the dest tex format
880 * is actually RGBA but the user created the texture as GL_RGB we
881 * need to fill-in/override the alpha channel with 1.0.
883 _mesa_texstore(ctx
, dims
,
884 texImage
->_BaseFormat
,
889 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
893 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
899 st_texture_image_unmap(st
, stImage
);
900 pipe
->transfer_unmap(pipe
, src_trans
);
906 * If the format of the src renderbuffer and the format of the dest
907 * texture are compatible (in terms of blitting), return a TGSI writemask
908 * to be used during the blit.
909 * If the src/dest are incompatible, return 0.
912 compatible_src_dst_formats(struct gl_context
*ctx
,
913 const struct gl_renderbuffer
*src
,
914 const struct gl_texture_image
*dst
)
916 /* Get logical base formats for the src and dest.
917 * That is, use the user-requested formats and not the actual, device-
919 * For example, the user may have requested an A8 texture but the
920 * driver may actually be using an RGBA texture format. When we
921 * copy/blit to that texture, we only want to copy the Alpha channel
922 * and not the RGB channels.
924 * Similarly, when the src FBO was created an RGB format may have been
925 * requested but the driver actually chose an RGBA format. In that case,
926 * we don't want to copy the undefined Alpha channel to the dest texture
927 * (it should be 1.0).
929 const GLenum srcFormat
= _mesa_base_fbo_format(ctx
, src
->InternalFormat
);
930 const GLenum dstFormat
= _mesa_base_tex_format(ctx
, dst
->InternalFormat
);
933 * XXX when we have red-only and red/green renderbuffers we'll need
934 * to add more cases here (or implement a general-purpose routine that
935 * queries the existance of the R,G,B,A channels in the src and dest).
937 if (srcFormat
== dstFormat
) {
938 /* This is the same as matching_base_formats, which should
939 * always pass, as it did previously.
941 return TGSI_WRITEMASK_XYZW
;
943 else if (srcFormat
== GL_RGB
&& dstFormat
== GL_RGBA
) {
944 /* Make sure that A in the dest is 1. The actual src format
945 * may be RGBA and have undefined A values.
947 return TGSI_WRITEMASK_XYZ
;
949 else if (srcFormat
== GL_RGBA
&& dstFormat
== GL_RGB
) {
950 /* Make sure that A in the dest is 1. The actual dst format
951 * may be RGBA and will need A=1 to provide proper alpha values
952 * when sampled later.
954 return TGSI_WRITEMASK_XYZ
;
957 if (ST_DEBUG
& DEBUG_FALLBACK
)
958 debug_printf("%s failed for src %s, dst %s\n",
960 _mesa_lookup_enum_by_nr(srcFormat
),
961 _mesa_lookup_enum_by_nr(dstFormat
));
971 * Do pipe->blit. Return FALSE if the blitting is unsupported
972 * for the given formats.
975 st_pipe_blit(struct pipe_context
*pipe
, struct pipe_blit_info
*blit
)
977 struct pipe_screen
*screen
= pipe
->screen
;
980 if (util_format_is_depth_or_stencil(blit
->dst
.format
)) {
981 dst_usage
= PIPE_BIND_DEPTH_STENCIL
;
984 dst_usage
= PIPE_BIND_RENDER_TARGET
;
987 /* try resource_copy_region in case the format is not supported
989 if (util_try_blit_via_copy_region(pipe
, blit
)) {
990 return GL_TRUE
; /* done */
993 /* check the format support */
994 if (!screen
->is_format_supported(screen
, blit
->src
.format
,
996 PIPE_BIND_SAMPLER_VIEW
) ||
997 !screen
->is_format_supported(screen
, blit
->dst
.format
,
1003 pipe
->blit(pipe
, blit
);
1009 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
1010 * Note that the region to copy has already been clipped so we know we
1011 * won't read from outside the source renderbuffer's bounds.
1013 * Note: srcY=0=Bottom of renderbuffer (GL convention)
1016 st_CopyTexSubImage(struct gl_context
*ctx
, GLuint dims
,
1017 struct gl_texture_image
*texImage
,
1018 GLint destX
, GLint destY
, GLint destZ
,
1019 struct gl_renderbuffer
*rb
,
1020 GLint srcX
, GLint srcY
, GLsizei width
, GLsizei height
)
1022 struct st_texture_image
*stImage
= st_texture_image(texImage
);
1023 const GLenum texBaseFormat
= texImage
->_BaseFormat
;
1024 struct st_renderbuffer
*strb
= st_renderbuffer(rb
);
1025 struct st_context
*st
= st_context(ctx
);
1026 struct pipe_context
*pipe
= st
->pipe
;
1027 struct pipe_screen
*screen
= pipe
->screen
;
1028 enum pipe_format dest_format
, src_format
;
1029 GLuint color_writemask
;
1030 struct pipe_surface
*dest_surface
= NULL
;
1031 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
1032 struct pipe_surface surf_tmpl
;
1035 GLint srcY0
, srcY1
, yStep
;
1037 /* make sure finalize_textures has been called?
1039 if (0) st_validate_state(st
);
1041 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
1042 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
1047 assert(strb
->surface
);
1048 assert(stImage
->pt
);
1050 src_format
= strb
->surface
->format
;
1051 dest_format
= stImage
->pt
->format
;
1054 srcY1
= strb
->Base
.Height
- srcY
- height
;
1055 srcY0
= srcY1
+ height
;
1060 srcY1
= srcY0
+ height
;
1064 if (ctx
->_ImageTransferState
) {
1068 /* Compressed and subsampled textures aren't supported for blitting. */
1069 if (!util_format_is_plain(dest_format
)) {
1073 /* Set the blit writemask. */
1074 switch (texBaseFormat
) {
1075 case GL_DEPTH_STENCIL
:
1076 switch (strb
->Base
._BaseFormat
) {
1077 case GL_DEPTH_STENCIL
:
1078 blit_mask
= PIPE_MASK_ZS
;
1080 case GL_DEPTH_COMPONENT
:
1081 blit_mask
= PIPE_MASK_Z
;
1083 case GL_STENCIL_INDEX
:
1084 blit_mask
= PIPE_MASK_S
;
1090 dst_usage
= PIPE_BIND_DEPTH_STENCIL
;
1093 case GL_DEPTH_COMPONENT
:
1094 blit_mask
= PIPE_MASK_Z
;
1095 dst_usage
= PIPE_BIND_DEPTH_STENCIL
;
1101 * Determine if the src framebuffer and dest texture have the same
1102 * base format. We need this to detect a case such as the framebuffer
1103 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
1104 * texture format stores RGBA we need to set A=1 (overriding the
1105 * framebuffer's alpha values).
1107 * XXX util_blit_pixels doesn't support MSAA resolve, so always use
1110 if (texBaseFormat
== strb
->Base
._BaseFormat
||
1111 strb
->texture
->nr_samples
> 1) {
1112 blit_mask
= PIPE_MASK_RGBA
;
1117 dst_usage
= PIPE_BIND_RENDER_TARGET
;
1120 /* Blit the texture.
1121 * This supports flipping, format conversions, and downsampling.
1124 /* If stImage->pt is an independent image (not a pointer into a full
1125 * mipmap) stImage->pt.last_level will be zero and we need to use that
1126 * as the dest level.
1128 unsigned dstLevel
= MIN2(stImage
->base
.Level
, stImage
->pt
->last_level
);
1129 struct pipe_blit_info blit
;
1131 memset(&blit
, 0, sizeof(blit
));
1132 blit
.src
.resource
= strb
->texture
;
1133 blit
.src
.format
= src_format
;
1134 blit
.src
.level
= strb
->surface
->u
.tex
.level
;
1135 blit
.src
.box
.x
= srcX
;
1136 blit
.src
.box
.y
= srcY0
;
1137 blit
.src
.box
.z
= strb
->surface
->u
.tex
.first_layer
;
1138 blit
.src
.box
.width
= width
;
1139 blit
.src
.box
.height
= srcY1
- srcY0
;
1140 blit
.src
.box
.depth
= 1;
1141 blit
.dst
.resource
= stImage
->pt
;
1142 blit
.dst
.format
= dest_format
;
1143 blit
.dst
.level
= dstLevel
;
1144 blit
.dst
.box
.x
= destX
;
1145 blit
.dst
.box
.y
= destY
;
1146 blit
.dst
.box
.z
= stImage
->base
.Face
+ destZ
;
1147 blit
.dst
.box
.width
= width
;
1148 blit
.dst
.box
.height
= height
;
1149 blit
.dst
.box
.depth
= 1;
1150 blit
.mask
= blit_mask
;
1151 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
1153 /* 1D array textures need special treatment.
1154 * Blit rows from the source to layers in the destination. */
1155 if (texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
) {
1158 for (y
= srcY0
, layer
= 0; layer
< height
; y
+= yStep
, layer
++) {
1160 blit
.src
.box
.height
= 1;
1162 blit
.dst
.box
.height
= 1;
1163 blit
.dst
.box
.z
= destY
+ layer
;
1165 if (!st_pipe_blit(pipe
, &blit
)) {
1171 /* All the other texture targets. */
1172 if (!st_pipe_blit(pipe
, &blit
)) {
1180 if (texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
) {
1181 /* u_blit cannot copy 1D array textures as required by CopyTexSubImage */
1185 color_writemask
= compatible_src_dst_formats(ctx
, &strb
->Base
, texImage
);
1187 if (!color_writemask
||
1188 !screen
->is_format_supported(screen
, src_format
,
1190 PIPE_BIND_SAMPLER_VIEW
) ||
1191 !screen
->is_format_supported(screen
, dest_format
,
1197 memset(&surf_tmpl
, 0, sizeof(surf_tmpl
));
1198 surf_tmpl
.format
= util_format_linear(stImage
->pt
->format
);
1199 surf_tmpl
.u
.tex
.level
= stImage
->base
.Level
;
1200 surf_tmpl
.u
.tex
.first_layer
= stImage
->base
.Face
+ destZ
;
1201 surf_tmpl
.u
.tex
.last_layer
= stImage
->base
.Face
+ destZ
;
1203 dest_surface
= pipe
->create_surface(pipe
, stImage
->pt
,
1205 util_blit_pixels(st
->blit
,
1207 strb
->surface
->u
.tex
.level
,
1209 srcX
+ width
, srcY1
,
1210 strb
->surface
->u
.tex
.first_layer
,
1213 destX
+ width
, destY
+ height
,
1214 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1215 color_writemask
, 0);
1216 pipe_surface_reference(&dest_surface
, NULL
);
1220 /* software fallback */
1221 fallback_copy_texsubimage(ctx
,
1222 strb
, stImage
, texBaseFormat
,
1223 destX
, destY
, destZ
,
1224 srcX
, srcY
, width
, height
);
1229 * Copy image data from stImage into the texture object 'stObj' at level
1233 copy_image_data_to_texture(struct st_context
*st
,
1234 struct st_texture_object
*stObj
,
1236 struct st_texture_image
*stImage
)
1240 const struct gl_texture_image
*dstImage
=
1241 stObj
->base
.Image
[stImage
->base
.Face
][dstLevel
];
1243 assert(dstImage
->Width
== stImage
->base
.Width
);
1244 assert(dstImage
->Height
== stImage
->base
.Height
);
1245 assert(dstImage
->Depth
== stImage
->base
.Depth
);
1249 /* Copy potentially with the blitter:
1252 if (stImage
->pt
->last_level
== 0)
1255 src_level
= stImage
->base
.Level
;
1257 assert(src_level
<= stImage
->pt
->last_level
);
1258 assert(u_minify(stImage
->pt
->width0
, src_level
) == stImage
->base
.Width
);
1259 assert(stImage
->pt
->target
== PIPE_TEXTURE_1D_ARRAY
||
1260 u_minify(stImage
->pt
->height0
, src_level
) == stImage
->base
.Height
);
1261 assert(stImage
->pt
->target
== PIPE_TEXTURE_2D_ARRAY
||
1262 stImage
->pt
->target
== PIPE_TEXTURE_CUBE_ARRAY
||
1263 u_minify(stImage
->pt
->depth0
, src_level
) == stImage
->base
.Depth
);
1265 st_texture_image_copy(st
->pipe
,
1266 stObj
->pt
, dstLevel
, /* dest texture, level */
1267 stImage
->pt
, src_level
, /* src texture, level */
1268 stImage
->base
.Face
);
1270 pipe_resource_reference(&stImage
->pt
, NULL
);
1272 else if (stImage
->TexData
) {
1273 /* Copy from malloc'd memory */
1274 /* XXX this should be re-examined/tested with a compressed format */
1275 GLuint blockSize
= util_format_get_blocksize(stObj
->pt
->format
);
1276 GLuint srcRowStride
= stImage
->base
.Width
* blockSize
;
1277 GLuint srcSliceStride
= stImage
->base
.Height
* srcRowStride
;
1278 st_texture_image_data(st
,
1285 _mesa_align_free(stImage
->TexData
);
1286 stImage
->TexData
= NULL
;
1289 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1294 * Called during state validation. When this function is finished,
1295 * the texture object should be ready for rendering.
1296 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1299 st_finalize_texture(struct gl_context
*ctx
,
1300 struct pipe_context
*pipe
,
1301 struct gl_texture_object
*tObj
)
1303 struct st_context
*st
= st_context(ctx
);
1304 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1305 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1307 struct st_texture_image
*firstImage
;
1308 enum pipe_format firstImageFormat
;
1309 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
1311 if (_mesa_is_texture_complete(tObj
, &tObj
->Sampler
)) {
1312 /* The texture is complete and we know exactly how many mipmap levels
1313 * are present/needed. This is conditional because we may be called
1314 * from the st_generate_mipmap() function when the texture object is
1315 * incomplete. In that case, we'll have set stObj->lastLevel before
1318 if (stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
1319 stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
)
1320 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1322 stObj
->lastLevel
= stObj
->base
._MaxLevel
;
1325 if (tObj
->Target
== GL_TEXTURE_BUFFER
) {
1326 struct st_buffer_object
*st_obj
= st_buffer_object(tObj
->BufferObject
);
1328 if (st_obj
->buffer
!= stObj
->pt
) {
1329 pipe_resource_reference(&stObj
->pt
, st_obj
->buffer
);
1330 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
1331 stObj
->width0
= stObj
->pt
->width0
/ _mesa_get_format_bytes(tObj
->_BufferObjectFormat
);
1339 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1342 /* If both firstImage and stObj point to a texture which can contain
1343 * all active images, favour firstImage. Note that because of the
1344 * completeness requirement, we know that the image dimensions
1347 if (firstImage
->pt
&&
1348 firstImage
->pt
!= stObj
->pt
&&
1349 (!stObj
->pt
|| firstImage
->pt
->last_level
>= stObj
->pt
->last_level
)) {
1350 pipe_resource_reference(&stObj
->pt
, firstImage
->pt
);
1351 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
1354 /* Find gallium format for the Mesa texture */
1355 firstImageFormat
= st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1357 /* Find size of level=0 Gallium mipmap image, plus number of texture layers */
1359 GLuint width
, height
, depth
;
1360 if (!guess_base_level_size(stObj
->base
.Target
,
1361 firstImage
->base
.Width2
,
1362 firstImage
->base
.Height2
,
1363 firstImage
->base
.Depth2
,
1364 firstImage
->base
.Level
,
1365 &width
, &height
, &depth
)) {
1366 width
= stObj
->width0
;
1367 height
= stObj
->height0
;
1368 depth
= stObj
->depth0
;
1370 /* convert GL dims to Gallium dims */
1371 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
, width
, height
, depth
,
1372 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1375 /* If we already have a gallium texture, check that it matches the texture
1376 * object's format, target, size, num_levels, etc.
1379 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1380 !st_sampler_compat_formats(stObj
->pt
->format
, firstImageFormat
) ||
1381 stObj
->pt
->last_level
< stObj
->lastLevel
||
1382 stObj
->pt
->width0
!= ptWidth
||
1383 stObj
->pt
->height0
!= ptHeight
||
1384 stObj
->pt
->depth0
!= ptDepth
||
1385 stObj
->pt
->array_size
!= ptLayers
)
1387 /* The gallium texture does not match the Mesa texture so delete the
1388 * gallium texture now. We'll make a new one below.
1390 pipe_resource_reference(&stObj
->pt
, NULL
);
1391 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
1392 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1396 /* May need to create a new gallium texture:
1399 GLuint bindings
= default_bindings(st
, firstImageFormat
);
1401 stObj
->pt
= st_texture_create(st
,
1402 gl_target_to_pipe(stObj
->base
.Target
),
1412 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1417 /* Pull in any images not in the object's texture:
1419 for (face
= 0; face
< nr_faces
; face
++) {
1421 for (level
= stObj
->base
.BaseLevel
; level
<= stObj
->lastLevel
; level
++) {
1422 struct st_texture_image
*stImage
=
1423 st_texture_image(stObj
->base
.Image
[face
][level
]);
1425 /* Need to import images in main memory or held in other textures.
1427 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1429 (stImage
->base
.Width
== u_minify(stObj
->width0
, level
) &&
1430 stImage
->base
.Height
== u_minify(stObj
->height0
, level
) &&
1431 stImage
->base
.Depth
== u_minify(stObj
->depth0
, level
))) {
1432 /* src image fits expected dest mipmap level size */
1433 copy_image_data_to_texture(st
, stObj
, level
, stImage
);
1444 * Called via ctx->Driver.AllocTextureStorage() to allocate texture memory
1445 * for a whole mipmap stack.
1448 st_AllocTextureStorage(struct gl_context
*ctx
,
1449 struct gl_texture_object
*texObj
,
1450 GLsizei levels
, GLsizei width
,
1451 GLsizei height
, GLsizei depth
)
1453 const GLuint numFaces
= _mesa_num_tex_faces(texObj
->Target
);
1454 struct st_context
*st
= st_context(ctx
);
1455 struct st_texture_object
*stObj
= st_texture_object(texObj
);
1456 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
, bindings
;
1457 enum pipe_format fmt
;
1462 /* Save the level=0 dimensions */
1463 stObj
->width0
= width
;
1464 stObj
->height0
= height
;
1465 stObj
->depth0
= depth
;
1466 stObj
->lastLevel
= levels
- 1;
1468 fmt
= st_mesa_format_to_pipe_format(texObj
->Image
[0][0]->TexFormat
);
1470 bindings
= default_bindings(st
, fmt
);
1472 st_gl_texture_dims_to_pipe_dims(texObj
->Target
,
1473 width
, height
, depth
,
1474 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1476 stObj
->pt
= st_texture_create(st
,
1477 gl_target_to_pipe(texObj
->Target
),
1488 /* Set image resource pointers */
1489 for (level
= 0; level
< levels
; level
++) {
1491 for (face
= 0; face
< numFaces
; face
++) {
1492 struct st_texture_image
*stImage
=
1493 st_texture_image(texObj
->Image
[face
][level
]);
1494 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1503 st_TestProxyTexImage(struct gl_context
*ctx
, GLenum target
,
1504 GLint level
, gl_format format
,
1505 GLint width
, GLint height
,
1506 GLint depth
, GLint border
)
1508 struct st_context
*st
= st_context(ctx
);
1509 struct pipe_context
*pipe
= st
->pipe
;
1511 if (width
== 0 || height
== 0 || depth
== 0) {
1512 /* zero-sized images are legal, and always fit! */
1516 if (pipe
->screen
->can_create_resource
) {
1517 /* Ask the gallium driver if the texture is too large */
1518 struct gl_texture_object
*texObj
=
1519 _mesa_get_current_tex_object(ctx
, target
);
1520 struct pipe_resource pt
;
1522 /* Setup the pipe_resource object
1524 memset(&pt
, 0, sizeof(pt
));
1526 pt
.target
= gl_target_to_pipe(target
);
1527 pt
.format
= st_mesa_format_to_pipe_format(format
);
1529 st_gl_texture_dims_to_pipe_dims(target
,
1530 width
, height
, depth
,
1531 &pt
.width0
, &pt
.height0
,
1532 &pt
.depth0
, &pt
.array_size
);
1534 if (level
== 0 && (texObj
->Sampler
.MinFilter
== GL_LINEAR
||
1535 texObj
->Sampler
.MinFilter
== GL_NEAREST
)) {
1536 /* assume just one mipmap level */
1540 /* assume a full set of mipmaps */
1541 pt
.last_level
= _mesa_logbase2(MAX3(width
, height
, depth
));
1544 return pipe
->screen
->can_create_resource(pipe
->screen
, &pt
);
1547 /* Use core Mesa fallback */
1548 return _mesa_test_proxy_teximage(ctx
, target
, level
, format
,
1549 width
, height
, depth
, border
);
1555 st_init_texture_functions(struct dd_function_table
*functions
)
1557 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1558 functions
->QuerySamplesForFormat
= st_QuerySamplesForFormat
;
1559 functions
->TexImage
= st_TexImage
;
1560 functions
->TexSubImage
= _mesa_store_texsubimage
;
1561 functions
->CompressedTexSubImage
= _mesa_store_compressed_texsubimage
;
1562 functions
->CopyTexSubImage
= st_CopyTexSubImage
;
1563 functions
->GenerateMipmap
= st_generate_mipmap
;
1565 functions
->GetTexImage
= st_GetTexImage
;
1567 /* compressed texture functions */
1568 functions
->CompressedTexImage
= st_CompressedTexImage
;
1569 functions
->GetCompressedTexImage
= _mesa_get_compressed_teximage
;
1571 functions
->NewTextureObject
= st_NewTextureObject
;
1572 functions
->NewTextureImage
= st_NewTextureImage
;
1573 functions
->DeleteTextureImage
= st_DeleteTextureImage
;
1574 functions
->DeleteTexture
= st_DeleteTextureObject
;
1575 functions
->AllocTextureImageBuffer
= st_AllocTextureImageBuffer
;
1576 functions
->FreeTextureImageBuffer
= st_FreeTextureImageBuffer
;
1577 functions
->MapTextureImage
= st_MapTextureImage
;
1578 functions
->UnmapTextureImage
= st_UnmapTextureImage
;
1580 /* XXX Temporary until we can query pipe's texture sizes */
1581 functions
->TestProxyTexImage
= st_TestProxyTexImage
;
1583 functions
->AllocTextureStorage
= st_AllocTextureStorage
;