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_format.h"
52 #include "state_tracker/st_texture.h"
53 #include "state_tracker/st_gen_mipmap.h"
54 #include "state_tracker/st_atom.h"
56 #include "pipe/p_context.h"
57 #include "pipe/p_defines.h"
58 #include "util/u_inlines.h"
59 #include "pipe/p_shader_tokens.h"
60 #include "util/u_tile.h"
61 #include "util/u_blit.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 static 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 return PIPE_TEXTURE_2D
;
82 case GL_TEXTURE_RECTANGLE_NV
:
83 case GL_PROXY_TEXTURE_RECTANGLE_NV
:
84 return PIPE_TEXTURE_RECT
;
86 case GL_PROXY_TEXTURE_3D
:
87 return PIPE_TEXTURE_3D
;
88 case GL_TEXTURE_CUBE_MAP_ARB
:
89 case GL_PROXY_TEXTURE_CUBE_MAP_ARB
:
90 case GL_TEXTURE_CUBE_MAP_POSITIVE_X
:
91 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X
:
92 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y
:
93 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y
:
94 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z
:
95 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z
:
96 return PIPE_TEXTURE_CUBE
;
97 case GL_TEXTURE_1D_ARRAY_EXT
:
98 case GL_PROXY_TEXTURE_1D_ARRAY_EXT
:
99 return PIPE_TEXTURE_1D_ARRAY
;
100 case GL_TEXTURE_2D_ARRAY_EXT
:
101 case GL_PROXY_TEXTURE_2D_ARRAY_EXT
:
102 return PIPE_TEXTURE_2D_ARRAY
;
103 case GL_TEXTURE_BUFFER
:
112 /** called via ctx->Driver.NewTextureImage() */
113 static struct gl_texture_image
*
114 st_NewTextureImage(struct gl_context
* ctx
)
116 DBG("%s\n", __FUNCTION__
);
118 return (struct gl_texture_image
*) ST_CALLOC_STRUCT(st_texture_image
);
122 /** called via ctx->Driver.DeleteTextureImage() */
124 st_DeleteTextureImage(struct gl_context
* ctx
, struct gl_texture_image
*img
)
126 /* nothing special (yet) for st_texture_image */
127 _mesa_delete_texture_image(ctx
, img
);
131 /** called via ctx->Driver.NewTextureObject() */
132 static struct gl_texture_object
*
133 st_NewTextureObject(struct gl_context
* ctx
, GLuint name
, GLenum target
)
135 struct st_texture_object
*obj
= ST_CALLOC_STRUCT(st_texture_object
);
137 DBG("%s\n", __FUNCTION__
);
138 _mesa_initialize_texture_object(&obj
->base
, name
, target
);
143 /** called via ctx->Driver.DeleteTextureObject() */
145 st_DeleteTextureObject(struct gl_context
*ctx
,
146 struct gl_texture_object
*texObj
)
148 struct st_context
*st
= st_context(ctx
);
149 struct st_texture_object
*stObj
= st_texture_object(texObj
);
151 pipe_resource_reference(&stObj
->pt
, NULL
);
152 if (stObj
->sampler_view
) {
153 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
155 _mesa_delete_texture_object(ctx
, texObj
);
159 /** called via ctx->Driver.FreeTextureImageBuffer() */
161 st_FreeTextureImageBuffer(struct gl_context
*ctx
,
162 struct gl_texture_image
*texImage
)
164 struct st_texture_image
*stImage
= st_texture_image(texImage
);
166 DBG("%s\n", __FUNCTION__
);
169 pipe_resource_reference(&stImage
->pt
, NULL
);
172 if (stImage
->TexData
) {
173 _mesa_align_free(stImage
->TexData
);
174 stImage
->TexData
= NULL
;
179 /** called via ctx->Driver.MapTextureImage() */
181 st_MapTextureImage(struct gl_context
*ctx
,
182 struct gl_texture_image
*texImage
,
183 GLuint slice
, GLuint x
, GLuint y
, GLuint w
, GLuint h
,
185 GLubyte
**mapOut
, GLint
*rowStrideOut
)
187 struct st_context
*st
= st_context(ctx
);
188 struct st_texture_image
*stImage
= st_texture_image(texImage
);
193 if (mode
& GL_MAP_READ_BIT
)
194 pipeMode
|= PIPE_TRANSFER_READ
;
195 if (mode
& GL_MAP_WRITE_BIT
)
196 pipeMode
|= PIPE_TRANSFER_WRITE
;
197 if (mode
& GL_MAP_INVALIDATE_RANGE_BIT
)
198 pipeMode
|= PIPE_TRANSFER_DISCARD_RANGE
;
200 map
= st_texture_image_map(st
, stImage
, slice
, pipeMode
, x
, y
, w
, h
);
203 *rowStrideOut
= stImage
->transfer
->stride
;
212 /** called via ctx->Driver.UnmapTextureImage() */
214 st_UnmapTextureImage(struct gl_context
*ctx
,
215 struct gl_texture_image
*texImage
,
218 struct st_context
*st
= st_context(ctx
);
219 struct st_texture_image
*stImage
= st_texture_image(texImage
);
220 st_texture_image_unmap(st
, stImage
);
225 * Return default texture resource binding bitmask for the given format.
228 default_bindings(struct st_context
*st
, enum pipe_format format
)
230 struct pipe_screen
*screen
= st
->pipe
->screen
;
231 const unsigned target
= PIPE_TEXTURE_2D
;
234 if (util_format_is_depth_or_stencil(format
))
235 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_DEPTH_STENCIL
;
237 bindings
= PIPE_BIND_SAMPLER_VIEW
| PIPE_BIND_RENDER_TARGET
;
239 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
243 format
= util_format_linear(format
);
245 if (screen
->is_format_supported(screen
, format
, target
, 0, bindings
))
248 return PIPE_BIND_SAMPLER_VIEW
;
253 /** Return number of image dimensions (1, 2 or 3) for a texture target. */
255 get_texture_dims(GLenum target
)
259 case GL_TEXTURE_1D_ARRAY_EXT
:
260 case GL_TEXTURE_BUFFER
:
263 case GL_TEXTURE_CUBE_MAP_ARB
:
264 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB
:
265 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB
:
266 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB
:
267 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB
:
268 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB
:
269 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB
:
270 case GL_TEXTURE_RECTANGLE_NV
:
271 case GL_TEXTURE_2D_ARRAY_EXT
:
272 case GL_TEXTURE_EXTERNAL_OES
:
277 assert(0 && "invalid texture target in get_texture_dims()");
284 * Given the size of a mipmap image, try to compute the size of the level=0
287 * Note that this isn't always accurate for odd-sized, non-POW textures.
288 * For example, if level=1 and width=40 then the level=0 width may be 80 or 81.
290 * \return GL_TRUE for success, GL_FALSE for failure
293 guess_base_level_size(GLenum target
,
294 GLuint width
, GLuint height
, GLuint depth
, GLuint level
,
295 GLuint
*width0
, GLuint
*height0
, GLuint
*depth0
)
297 const GLuint dims
= get_texture_dims(target
);
304 /* Depending on the image's size, we can't always make a guess here */
305 if ((dims
>= 1 && width
== 1) ||
306 (dims
>= 2 && height
== 1) ||
307 (dims
>= 3 && depth
== 1)) {
308 /* we can't determine the image size at level=0 */
312 /* grow the image size until we hit level = 0 */
333 * Try to allocate a pipe_resource object for the given st_texture_object.
335 * We use the given st_texture_image as a clue to determine the size of the
336 * mipmap image at level=0.
338 * \return GL_TRUE for success, GL_FALSE if out of memory.
341 guess_and_alloc_texture(struct st_context
*st
,
342 struct st_texture_object
*stObj
,
343 const struct st_texture_image
*stImage
)
345 GLuint lastLevel
, width
, height
, depth
;
347 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
348 enum pipe_format fmt
;
350 DBG("%s\n", __FUNCTION__
);
354 if (!guess_base_level_size(stObj
->base
.Target
,
355 stImage
->base
.Width2
,
356 stImage
->base
.Height2
,
357 stImage
->base
.Depth2
,
359 &width
, &height
, &depth
)) {
360 /* we can't determine the image size at level=0 */
361 stObj
->width0
= stObj
->height0
= stObj
->depth0
= 0;
362 /* this is not an out of memory error */
366 /* At this point, (width x height x depth) is the expected size of
367 * the level=0 mipmap image.
370 /* Guess a reasonable value for lastLevel. With OpenGL we have no
371 * idea how many mipmap levels will be in a texture until we start
372 * to render with it. Make an educated guess here but be prepared
373 * to re-allocating a texture buffer with space for more (or fewer)
374 * mipmap levels later.
376 if ((stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
||
377 stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
378 stImage
->base
._BaseFormat
== GL_DEPTH_COMPONENT
||
379 stImage
->base
._BaseFormat
== GL_DEPTH_STENCIL_EXT
) &&
380 !stObj
->base
.GenerateMipmap
&&
381 stImage
->base
.Level
== 0) {
382 /* only alloc space for a single mipmap level */
386 /* alloc space for a full mipmap */
387 GLuint l2width
= util_logbase2(width
);
388 GLuint l2height
= util_logbase2(height
);
389 GLuint l2depth
= util_logbase2(depth
);
390 lastLevel
= MAX2(MAX2(l2width
, l2height
), l2depth
);
393 /* Save the level=0 dimensions */
394 stObj
->width0
= width
;
395 stObj
->height0
= height
;
396 stObj
->depth0
= depth
;
398 fmt
= st_mesa_format_to_pipe_format(stImage
->base
.TexFormat
);
400 bindings
= default_bindings(st
, fmt
);
402 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
403 width
, height
, depth
,
404 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
406 stObj
->pt
= st_texture_create(st
,
407 gl_target_to_pipe(stObj
->base
.Target
),
416 stObj
->lastLevel
= lastLevel
;
418 DBG("%s returning %d\n", __FUNCTION__
, (stObj
->pt
!= NULL
));
420 return stObj
->pt
!= NULL
;
425 * Called via ctx->Driver.AllocTextureImageBuffer().
426 * If the texture object/buffer already has space for the indicated image,
427 * we're done. Otherwise, allocate memory for the new texture image.
430 st_AllocTextureImageBuffer(struct gl_context
*ctx
,
431 struct gl_texture_image
*texImage
)
433 struct st_context
*st
= st_context(ctx
);
434 struct st_texture_image
*stImage
= st_texture_image(texImage
);
435 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
436 const GLuint level
= texImage
->Level
;
437 GLuint width
= texImage
->Width
;
438 GLuint height
= texImage
->Height
;
439 GLuint depth
= texImage
->Depth
;
441 DBG("%s\n", __FUNCTION__
);
443 assert(!stImage
->TexData
);
444 assert(!stImage
->pt
); /* xxx this might be wrong */
446 /* Look if the parent texture object has space for this image */
448 level
<= stObj
->pt
->last_level
&&
449 st_texture_match_image(stObj
->pt
, texImage
)) {
450 /* this image will fit in the existing texture object's memory */
451 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
455 /* The parent texture object does not have space for this image */
457 pipe_resource_reference(&stObj
->pt
, NULL
);
458 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
460 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
461 /* Probably out of memory.
462 * Try flushing any pending rendering, then retry.
465 if (!guess_and_alloc_texture(st
, stObj
, stImage
)) {
466 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
472 st_texture_match_image(stObj
->pt
, texImage
)) {
473 /* The image will live in the object's mipmap memory */
474 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
479 /* Create a new, temporary texture/resource/buffer to hold this
480 * one texture image. Note that when we later access this image
481 * (either for mapping or copying) we'll want to always specify
482 * mipmap level=0, even if the image represents some other mipmap
485 enum pipe_format format
=
486 st_mesa_format_to_pipe_format(texImage
->TexFormat
);
487 GLuint bindings
= default_bindings(st
, format
);
488 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
490 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
,
491 width
, height
, depth
,
492 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
494 stImage
->pt
= st_texture_create(st
,
495 gl_target_to_pipe(stObj
->base
.Target
),
503 return stImage
->pt
!= NULL
;
509 * Preparation prior to glTexImage. Basically check the 'surface_based'
510 * field and switch to a "normal" tex image if necessary.
513 prep_teximage(struct gl_context
*ctx
, struct gl_texture_image
*texImage
,
514 GLenum format
, GLenum type
)
516 struct gl_texture_object
*texObj
= texImage
->TexObject
;
517 struct st_texture_object
*stObj
= st_texture_object(texObj
);
519 /* switch to "normal" */
520 if (stObj
->surface_based
) {
521 const GLenum target
= texObj
->Target
;
522 const GLuint level
= texImage
->Level
;
525 _mesa_clear_texture_object(ctx
, texObj
);
526 pipe_resource_reference(&stObj
->pt
, NULL
);
528 /* oops, need to init this image again */
529 texFormat
= _mesa_choose_texture_format(ctx
, texObj
, target
, level
,
530 texImage
->InternalFormat
, format
,
533 _mesa_init_teximage_fields(ctx
, texImage
,
534 texImage
->Width
, texImage
->Height
,
535 texImage
->Depth
, texImage
->Border
,
536 texImage
->InternalFormat
, texFormat
);
538 stObj
->surface_based
= GL_FALSE
;
544 st_TexImage(struct gl_context
* ctx
, GLuint dims
,
545 struct gl_texture_image
*texImage
,
546 GLenum format
, GLenum type
, const void *pixels
,
547 const struct gl_pixelstore_attrib
*unpack
)
549 prep_teximage(ctx
, texImage
, format
, type
);
550 _mesa_store_teximage(ctx
, dims
, texImage
, format
, type
, pixels
, unpack
);
555 st_CompressedTexImage(struct gl_context
*ctx
, GLuint dims
,
556 struct gl_texture_image
*texImage
,
557 GLsizei imageSize
, const GLvoid
*data
)
559 prep_teximage(ctx
, texImage
, GL_NONE
, GL_NONE
);
560 _mesa_store_compressed_teximage(ctx
, dims
, texImage
, imageSize
, data
);
566 * glGetTexImage() helper: decompress a compressed texture by rendering
567 * a textured quad. Store the results in the user's buffer.
570 decompress_with_blit(struct gl_context
* ctx
,
571 GLenum format
, GLenum type
, GLvoid
*pixels
,
572 struct gl_texture_image
*texImage
)
574 struct st_context
*st
= st_context(ctx
);
575 struct pipe_context
*pipe
= st
->pipe
;
576 struct st_texture_image
*stImage
= st_texture_image(texImage
);
577 struct st_texture_object
*stObj
= st_texture_object(texImage
->TexObject
);
578 const GLuint width
= texImage
->Width
;
579 const GLuint height
= texImage
->Height
;
580 struct pipe_resource
*dst_texture
;
581 struct pipe_blit_info blit
;
582 unsigned bind
= (PIPE_BIND_RENDER_TARGET
| PIPE_BIND_TRANSFER_READ
);
583 struct pipe_transfer
*tex_xfer
;
586 /* create temp / dest surface */
587 if (!util_create_rgba_texture(pipe
, width
, height
, bind
,
589 _mesa_problem(ctx
, "util_create_rgba_texture() failed "
590 "in decompress_with_blit()");
594 blit
.src
.resource
= stObj
->pt
;
595 blit
.src
.level
= texImage
->Level
;
596 blit
.src
.format
= util_format_linear(stObj
->pt
->format
);
597 blit
.dst
.resource
= dst_texture
;
599 blit
.dst
.format
= dst_texture
->format
;
600 blit
.src
.box
.x
= blit
.dst
.box
.x
= 0;
601 blit
.src
.box
.y
= blit
.dst
.box
.y
= 0;
602 blit
.src
.box
.z
= 0; /* XXX compressed array textures? */
604 blit
.src
.box
.width
= blit
.dst
.box
.width
= width
;
605 blit
.src
.box
.height
= blit
.dst
.box
.height
= height
;
606 blit
.src
.box
.depth
= blit
.dst
.box
.depth
= 1;
607 blit
.mask
= PIPE_MASK_RGBA
;
608 blit
.filter
= PIPE_TEX_FILTER_NEAREST
;
609 blit
.scissor_enable
= FALSE
;
611 /* blit/render/decompress */
612 st
->pipe
->blit(st
->pipe
, &blit
);
614 pixels
= _mesa_map_pbo_dest(ctx
, &ctx
->Pack
, pixels
);
616 map
= pipe_transfer_map(pipe
, dst_texture
, 0, 0,
618 0, 0, width
, height
, &tex_xfer
);
623 /* copy/pack data into user buffer */
624 if (_mesa_format_matches_format_and_type(stImage
->base
.TexFormat
,
626 ctx
->Pack
.SwapBytes
)) {
628 const uint bytesPerRow
= width
* util_format_get_blocksize(stImage
->pt
->format
);
629 /* map the dst_surface so we can read from it */
631 for (row
= 0; row
< height
; row
++) {
632 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
633 height
, format
, type
, row
, 0);
634 memcpy(dest
, map
, bytesPerRow
);
635 map
+= tex_xfer
->stride
;
637 pipe_transfer_unmap(pipe
, tex_xfer
);
640 /* format translation via floats */
642 enum pipe_format pformat
= util_format_linear(dst_texture
->format
);
645 rgba
= malloc(width
* 4 * sizeof(GLfloat
));
647 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glGetTexImage()");
651 for (row
= 0; row
< height
; row
++) {
652 const GLbitfield transferOps
= 0x0; /* bypassed for glGetTexImage() */
653 GLvoid
*dest
= _mesa_image_address2d(&ctx
->Pack
, pixels
, width
,
654 height
, format
, type
, row
, 0);
656 if (ST_DEBUG
& DEBUG_FALLBACK
)
657 debug_printf("%s: fallback format translation\n", __FUNCTION__
);
659 /* get float[4] rgba row from surface */
660 pipe_get_tile_rgba_format(tex_xfer
, map
, 0, row
, width
, 1,
663 _mesa_pack_rgba_span_float(ctx
, width
, (GLfloat (*)[4]) rgba
, format
,
664 type
, dest
, &ctx
->Pack
, transferOps
);
672 pipe_transfer_unmap(pipe
, tex_xfer
);
674 _mesa_unmap_pbo_dest(ctx
, &ctx
->Pack
);
675 pipe_resource_reference(&dst_texture
, NULL
);
681 * Called via ctx->Driver.GetTexImage()
684 st_GetTexImage(struct gl_context
* ctx
,
685 GLenum format
, GLenum type
, GLvoid
* pixels
,
686 struct gl_texture_image
*texImage
)
688 struct st_texture_image
*stImage
= st_texture_image(texImage
);
690 if (stImage
->pt
&& util_format_is_s3tc(stImage
->pt
->format
)) {
691 /* Need to decompress the texture.
692 * We'll do this by rendering a textured quad (which is hopefully
693 * faster than using the fallback code in texcompress.c).
694 * Note that we only expect RGBA formats (no Z/depth formats).
696 decompress_with_blit(ctx
, format
, type
, pixels
, texImage
);
699 _mesa_get_teximage(ctx
, format
, type
, pixels
, texImage
);
705 * Do a CopyTexSubImage operation using a read transfer from the source,
706 * a write transfer to the destination and get_tile()/put_tile() to access
709 * Note: srcY=0=TOP of renderbuffer
712 fallback_copy_texsubimage(struct gl_context
*ctx
,
713 struct st_renderbuffer
*strb
,
714 struct st_texture_image
*stImage
,
716 GLint destX
, GLint destY
, GLint destZ
,
717 GLint srcX
, GLint srcY
,
718 GLsizei width
, GLsizei height
)
720 struct st_context
*st
= st_context(ctx
);
721 struct pipe_context
*pipe
= st
->pipe
;
722 struct pipe_transfer
*src_trans
;
724 enum pipe_transfer_usage transfer_usage
;
727 if (ST_DEBUG
& DEBUG_FALLBACK
)
728 debug_printf("%s: fallback processing\n", __FUNCTION__
);
730 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
731 srcY
= strb
->Base
.Height
- srcY
- height
;
734 map
= pipe_transfer_map(pipe
,
737 strb
->rtt_face
+ strb
->rtt_slice
,
740 width
, height
, &src_trans
);
742 if ((baseFormat
== GL_DEPTH_COMPONENT
||
743 baseFormat
== GL_DEPTH_STENCIL
) &&
744 util_format_is_depth_and_stencil(stImage
->pt
->format
))
745 transfer_usage
= PIPE_TRANSFER_READ_WRITE
;
747 transfer_usage
= PIPE_TRANSFER_WRITE
;
749 /* XXX this used to ignore destZ param */
750 texDest
= st_texture_image_map(st
, stImage
, destZ
, transfer_usage
,
751 destX
, destY
, width
, height
);
753 if (baseFormat
== GL_DEPTH_COMPONENT
||
754 baseFormat
== GL_DEPTH_STENCIL
) {
755 const GLboolean scaleOrBias
= (ctx
->Pixel
.DepthScale
!= 1.0F
||
756 ctx
->Pixel
.DepthBias
!= 0.0F
);
760 /* determine bottom-to-top vs. top-to-bottom order for src buffer */
761 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
770 data
= malloc(width
* sizeof(uint
));
773 /* To avoid a large temp memory allocation, do copy row by row */
774 for (row
= 0; row
< height
; row
++, srcY
+= yStep
) {
775 pipe_get_tile_z(src_trans
, map
, 0, srcY
, width
, 1, data
);
777 _mesa_scale_and_bias_depth_uint(ctx
, width
, data
);
779 pipe_put_tile_z(stImage
->transfer
, texDest
, 0, row
, width
, 1,
784 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glCopyTexSubImage()");
792 malloc(width
* height
* 4 * sizeof(GLfloat
));
794 if (tempSrc
&& texDest
) {
795 const GLint dims
= 2;
796 const GLint dstRowStride
= stImage
->transfer
->stride
;
797 struct gl_texture_image
*texImage
= &stImage
->base
;
798 struct gl_pixelstore_attrib unpack
= ctx
->DefaultPacking
;
800 if (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
) {
801 unpack
.Invert
= GL_TRUE
;
804 /* get float/RGBA image from framebuffer */
805 /* XXX this usually involves a lot of int/float conversion.
806 * try to avoid that someday.
808 pipe_get_tile_rgba_format(src_trans
, map
, 0, 0, width
, height
,
809 util_format_linear(strb
->texture
->format
),
812 /* Store into texture memory.
813 * Note that this does some special things such as pixel transfer
814 * ops and format conversion. In particular, if the dest tex format
815 * is actually RGBA but the user created the texture as GL_RGB we
816 * need to fill-in/override the alpha channel with 1.0.
818 _mesa_texstore(ctx
, dims
,
819 texImage
->_BaseFormat
,
822 (GLubyte
**) &texDest
,
824 GL_RGBA
, GL_FLOAT
, tempSrc
, /* src */
828 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexSubImage");
834 st_texture_image_unmap(st
, stImage
);
835 pipe
->transfer_unmap(pipe
, src_trans
);
841 * If the format of the src renderbuffer and the format of the dest
842 * texture are compatible (in terms of blitting), return a TGSI writemask
843 * to be used during the blit.
844 * If the src/dest are incompatible, return 0.
847 compatible_src_dst_formats(struct gl_context
*ctx
,
848 const struct gl_renderbuffer
*src
,
849 const struct gl_texture_image
*dst
)
851 /* Get logical base formats for the src and dest.
852 * That is, use the user-requested formats and not the actual, device-
854 * For example, the user may have requested an A8 texture but the
855 * driver may actually be using an RGBA texture format. When we
856 * copy/blit to that texture, we only want to copy the Alpha channel
857 * and not the RGB channels.
859 * Similarly, when the src FBO was created an RGB format may have been
860 * requested but the driver actually chose an RGBA format. In that case,
861 * we don't want to copy the undefined Alpha channel to the dest texture
862 * (it should be 1.0).
864 const GLenum srcFormat
= _mesa_base_fbo_format(ctx
, src
->InternalFormat
);
865 const GLenum dstFormat
= _mesa_base_tex_format(ctx
, dst
->InternalFormat
);
868 * XXX when we have red-only and red/green renderbuffers we'll need
869 * to add more cases here (or implement a general-purpose routine that
870 * queries the existance of the R,G,B,A channels in the src and dest).
872 if (srcFormat
== dstFormat
) {
873 /* This is the same as matching_base_formats, which should
874 * always pass, as it did previously.
876 return TGSI_WRITEMASK_XYZW
;
878 else if (srcFormat
== GL_RGB
&& dstFormat
== GL_RGBA
) {
879 /* Make sure that A in the dest is 1. The actual src format
880 * may be RGBA and have undefined A values.
882 return TGSI_WRITEMASK_XYZ
;
884 else if (srcFormat
== GL_RGBA
&& dstFormat
== GL_RGB
) {
885 /* Make sure that A in the dest is 1. The actual dst format
886 * may be RGBA and will need A=1 to provide proper alpha values
887 * when sampled later.
889 return TGSI_WRITEMASK_XYZ
;
892 if (ST_DEBUG
& DEBUG_FALLBACK
)
893 debug_printf("%s failed for src %s, dst %s\n",
895 _mesa_lookup_enum_by_nr(srcFormat
),
896 _mesa_lookup_enum_by_nr(dstFormat
));
907 * Do a CopyTex[Sub]Image1/2/3D() using a hardware (blit) path if possible.
908 * Note that the region to copy has already been clipped so we know we
909 * won't read from outside the source renderbuffer's bounds.
911 * Note: srcY=0=Bottom of renderbuffer (GL convention)
914 st_CopyTexSubImage(struct gl_context
*ctx
, GLuint dims
,
915 struct gl_texture_image
*texImage
,
916 GLint destX
, GLint destY
, GLint destZ
,
917 struct gl_renderbuffer
*rb
,
918 GLint srcX
, GLint srcY
, GLsizei width
, GLsizei height
)
920 struct st_texture_image
*stImage
= st_texture_image(texImage
);
921 const GLenum texBaseFormat
= texImage
->_BaseFormat
;
922 struct st_renderbuffer
*strb
= st_renderbuffer(rb
);
923 struct st_context
*st
= st_context(ctx
);
924 struct pipe_context
*pipe
= st
->pipe
;
925 struct pipe_screen
*screen
= pipe
->screen
;
926 enum pipe_format dest_format
, src_format
;
927 GLboolean matching_base_formats
;
928 GLuint color_writemask
, zs_writemask
, sample_count
;
929 struct pipe_surface
*dest_surface
= NULL
;
930 GLboolean do_flip
= (st_fb_orientation(ctx
->ReadBuffer
) == Y_0_TOP
);
931 struct pipe_surface surf_tmpl
;
932 unsigned int dst_usage
;
935 /* make sure finalize_textures has been called?
937 if (0) st_validate_state(st
);
939 if (!strb
|| !strb
->surface
|| !stImage
->pt
) {
940 debug_printf("%s: null strb or stImage\n", __FUNCTION__
);
944 sample_count
= strb
->surface
->texture
->nr_samples
;
945 /* I believe this would be legal, presumably would need to do a resolve
946 for color, and for depth/stencil spec says to just use one of the
947 depth/stencil samples per pixel? Need some transfer clarifications. */
948 assert(sample_count
< 2);
951 assert(strb
->surface
);
954 src_format
= strb
->surface
->format
;
955 dest_format
= stImage
->pt
->format
;
958 * Determine if the src framebuffer and dest texture have the same
959 * base format. We need this to detect a case such as the framebuffer
960 * being GL_RGBA but the texture being GL_RGB. If the actual hardware
961 * texture format stores RGBA we need to set A=1 (overriding the
962 * framebuffer's alpha values). We can't do that with the blit or
963 * textured-quad paths.
965 matching_base_formats
=
966 (_mesa_get_format_base_format(strb
->Base
.Format
) ==
967 _mesa_get_format_base_format(texImage
->TexFormat
));
969 if (ctx
->_ImageTransferState
) {
973 if (texImage
->TexObject
->Target
== GL_TEXTURE_1D_ARRAY
) {
974 /* 1D arrays might be thought of as 2D images but the actual layout
975 * might not be that way. At some points, we convert OpenGL's 1D
976 * array 'height' into gallium 'layers' and that prevents the blit
977 * utility code from doing the right thing. Simpy use the memcpy-based
983 if (matching_base_formats
&&
984 src_format
== dest_format
&&
986 /* use surface_copy() / blit */
987 struct pipe_box src_box
;
990 u_box_2d_zslice(srcX
, srcY
, strb
->surface
->u
.tex
.first_layer
,
991 width
, height
, &src_box
);
993 /* If stImage->pt is an independent image (not a pointer into a full
994 * mipmap) stImage->pt.last_level will be zero and we need to use that
997 dstLevel
= MIN2(stImage
->base
.Level
, stImage
->pt
->last_level
);
999 /* for resource_copy_region(), y=0=top, always */
1000 pipe
->resource_copy_region(pipe
,
1004 destX
, destY
, destZ
+ stImage
->base
.Face
,
1007 strb
->surface
->u
.tex
.level
,
1012 if (texBaseFormat
== GL_DEPTH_STENCIL
) {
1016 if (texBaseFormat
== GL_DEPTH_COMPONENT
) {
1017 color_writemask
= 0;
1018 zs_writemask
= BLIT_WRITEMASK_Z
;
1019 dst_usage
= PIPE_BIND_DEPTH_STENCIL
;
1022 color_writemask
= compatible_src_dst_formats(ctx
, &strb
->Base
, texImage
);
1024 dst_usage
= PIPE_BIND_RENDER_TARGET
;
1027 if ((!color_writemask
&& !zs_writemask
) ||
1028 !screen
->is_format_supported(screen
, src_format
,
1029 PIPE_TEXTURE_2D
, sample_count
,
1030 PIPE_BIND_SAMPLER_VIEW
) ||
1031 !screen
->is_format_supported(screen
, dest_format
,
1038 srcY1
= strb
->Base
.Height
- srcY
- height
;
1039 srcY0
= srcY1
+ height
;
1043 srcY1
= srcY0
+ height
;
1046 /* Disable conditional rendering. */
1047 if (st
->render_condition
) {
1048 pipe
->render_condition(pipe
, NULL
, 0);
1051 memset(&surf_tmpl
, 0, sizeof(surf_tmpl
));
1052 surf_tmpl
.format
= util_format_linear(stImage
->pt
->format
);
1053 surf_tmpl
.usage
= dst_usage
;
1054 surf_tmpl
.u
.tex
.level
= stImage
->base
.Level
;
1055 surf_tmpl
.u
.tex
.first_layer
= stImage
->base
.Face
+ destZ
;
1056 surf_tmpl
.u
.tex
.last_layer
= stImage
->base
.Face
+ destZ
;
1058 dest_surface
= pipe
->create_surface(pipe
, stImage
->pt
,
1060 util_blit_pixels(st
->blit
,
1062 strb
->surface
->u
.tex
.level
,
1064 srcX
+ width
, srcY1
,
1065 strb
->surface
->u
.tex
.first_layer
,
1068 destX
+ width
, destY
+ height
,
1069 0.0, PIPE_TEX_MIPFILTER_NEAREST
,
1070 color_writemask
, zs_writemask
);
1071 pipe_surface_reference(&dest_surface
, NULL
);
1073 /* Restore conditional rendering state. */
1074 if (st
->render_condition
) {
1075 pipe
->render_condition(pipe
, st
->render_condition
,
1076 st
->condition_mode
);
1082 /* software fallback */
1083 fallback_copy_texsubimage(ctx
,
1084 strb
, stImage
, texBaseFormat
,
1085 destX
, destY
, destZ
,
1086 srcX
, srcY
, width
, height
);
1091 * Copy image data from stImage into the texture object 'stObj' at level
1095 copy_image_data_to_texture(struct st_context
*st
,
1096 struct st_texture_object
*stObj
,
1098 struct st_texture_image
*stImage
)
1102 const struct gl_texture_image
*dstImage
=
1103 stObj
->base
.Image
[stImage
->base
.Face
][dstLevel
];
1105 assert(dstImage
->Width
== stImage
->base
.Width
);
1106 assert(dstImage
->Height
== stImage
->base
.Height
);
1107 assert(dstImage
->Depth
== stImage
->base
.Depth
);
1111 /* Copy potentially with the blitter:
1114 if (stImage
->pt
!= stObj
->pt
)
1117 src_level
= stImage
->base
.Level
;
1119 st_texture_image_copy(st
->pipe
,
1120 stObj
->pt
, dstLevel
, /* dest texture, level */
1121 stImage
->pt
, src_level
, /* src texture, level */
1122 stImage
->base
.Face
);
1124 pipe_resource_reference(&stImage
->pt
, NULL
);
1126 else if (stImage
->TexData
) {
1127 /* Copy from malloc'd memory */
1128 /* XXX this should be re-examined/tested with a compressed format */
1129 GLuint blockSize
= util_format_get_blocksize(stObj
->pt
->format
);
1130 GLuint srcRowStride
= stImage
->base
.Width
* blockSize
;
1131 GLuint srcSliceStride
= stImage
->base
.Height
* srcRowStride
;
1132 st_texture_image_data(st
,
1139 _mesa_align_free(stImage
->TexData
);
1140 stImage
->TexData
= NULL
;
1143 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1148 * Called during state validation. When this function is finished,
1149 * the texture object should be ready for rendering.
1150 * \return GL_TRUE for success, GL_FALSE for failure (out of mem)
1153 st_finalize_texture(struct gl_context
*ctx
,
1154 struct pipe_context
*pipe
,
1155 struct gl_texture_object
*tObj
)
1157 struct st_context
*st
= st_context(ctx
);
1158 struct st_texture_object
*stObj
= st_texture_object(tObj
);
1159 const GLuint nr_faces
= (stObj
->base
.Target
== GL_TEXTURE_CUBE_MAP
) ? 6 : 1;
1161 struct st_texture_image
*firstImage
;
1162 enum pipe_format firstImageFormat
;
1163 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
;
1165 if (_mesa_is_texture_complete(tObj
, &tObj
->Sampler
)) {
1166 /* The texture is complete and we know exactly how many mipmap levels
1167 * are present/needed. This is conditional because we may be called
1168 * from the st_generate_mipmap() function when the texture object is
1169 * incomplete. In that case, we'll have set stObj->lastLevel before
1172 if (stObj
->base
.Sampler
.MinFilter
== GL_LINEAR
||
1173 stObj
->base
.Sampler
.MinFilter
== GL_NEAREST
)
1174 stObj
->lastLevel
= stObj
->base
.BaseLevel
;
1176 stObj
->lastLevel
= stObj
->base
._MaxLevel
;
1179 firstImage
= st_texture_image(stObj
->base
.Image
[0][stObj
->base
.BaseLevel
]);
1182 /* If both firstImage and stObj point to a texture which can contain
1183 * all active images, favour firstImage. Note that because of the
1184 * completeness requirement, we know that the image dimensions
1187 if (firstImage
->pt
&&
1188 firstImage
->pt
!= stObj
->pt
&&
1189 (!stObj
->pt
|| firstImage
->pt
->last_level
>= stObj
->pt
->last_level
)) {
1190 pipe_resource_reference(&stObj
->pt
, firstImage
->pt
);
1191 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
1194 /* Find gallium format for the Mesa texture */
1195 firstImageFormat
= st_mesa_format_to_pipe_format(firstImage
->base
.TexFormat
);
1197 /* Find size of level=0 Gallium mipmap image, plus number of texture layers */
1199 GLuint width
, height
, depth
;
1200 if (!guess_base_level_size(stObj
->base
.Target
,
1201 firstImage
->base
.Width2
,
1202 firstImage
->base
.Height2
,
1203 firstImage
->base
.Depth2
,
1204 firstImage
->base
.Level
,
1205 &width
, &height
, &depth
)) {
1206 width
= stObj
->width0
;
1207 height
= stObj
->height0
;
1208 depth
= stObj
->depth0
;
1210 /* convert GL dims to Gallium dims */
1211 st_gl_texture_dims_to_pipe_dims(stObj
->base
.Target
, width
, height
, depth
,
1212 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1215 /* If we already have a gallium texture, check that it matches the texture
1216 * object's format, target, size, num_levels, etc.
1219 if (stObj
->pt
->target
!= gl_target_to_pipe(stObj
->base
.Target
) ||
1220 !st_sampler_compat_formats(stObj
->pt
->format
, firstImageFormat
) ||
1221 stObj
->pt
->last_level
< stObj
->lastLevel
||
1222 stObj
->pt
->width0
!= ptWidth
||
1223 stObj
->pt
->height0
!= ptHeight
||
1224 stObj
->pt
->depth0
!= ptDepth
||
1225 stObj
->pt
->array_size
!= ptLayers
)
1227 /* The gallium texture does not match the Mesa texture so delete the
1228 * gallium texture now. We'll make a new one below.
1230 pipe_resource_reference(&stObj
->pt
, NULL
);
1231 pipe_sampler_view_release(st
->pipe
, &stObj
->sampler_view
);
1232 st
->dirty
.st
|= ST_NEW_FRAMEBUFFER
;
1236 /* May need to create a new gallium texture:
1239 GLuint bindings
= default_bindings(st
, firstImageFormat
);
1241 stObj
->pt
= st_texture_create(st
,
1242 gl_target_to_pipe(stObj
->base
.Target
),
1252 _mesa_error(ctx
, GL_OUT_OF_MEMORY
, "glTexImage");
1257 /* Pull in any images not in the object's texture:
1259 for (face
= 0; face
< nr_faces
; face
++) {
1261 for (level
= stObj
->base
.BaseLevel
; level
<= stObj
->lastLevel
; level
++) {
1262 struct st_texture_image
*stImage
=
1263 st_texture_image(stObj
->base
.Image
[face
][level
]);
1265 /* Need to import images in main memory or held in other textures.
1267 if (stImage
&& stObj
->pt
!= stImage
->pt
) {
1269 (stImage
->base
.Width
== u_minify(stObj
->width0
, level
) &&
1270 stImage
->base
.Height
== u_minify(stObj
->height0
, level
) &&
1271 stImage
->base
.Depth
== u_minify(stObj
->depth0
, level
))) {
1272 /* src image fits expected dest mipmap level size */
1273 copy_image_data_to_texture(st
, stObj
, level
, stImage
);
1284 * Called via ctx->Driver.AllocTextureStorage() to allocate texture memory
1285 * for a whole mipmap stack.
1288 st_AllocTextureStorage(struct gl_context
*ctx
,
1289 struct gl_texture_object
*texObj
,
1290 GLsizei levels
, GLsizei width
,
1291 GLsizei height
, GLsizei depth
)
1293 const GLuint numFaces
= _mesa_num_tex_faces(texObj
->Target
);
1294 struct st_context
*st
= st_context(ctx
);
1295 struct st_texture_object
*stObj
= st_texture_object(texObj
);
1296 GLuint ptWidth
, ptHeight
, ptDepth
, ptLayers
, bindings
;
1297 enum pipe_format fmt
;
1302 /* Save the level=0 dimensions */
1303 stObj
->width0
= width
;
1304 stObj
->height0
= height
;
1305 stObj
->depth0
= depth
;
1306 stObj
->lastLevel
= levels
- 1;
1308 fmt
= st_mesa_format_to_pipe_format(texObj
->Image
[0][0]->TexFormat
);
1310 bindings
= default_bindings(st
, fmt
);
1312 st_gl_texture_dims_to_pipe_dims(texObj
->Target
,
1313 width
, height
, depth
,
1314 &ptWidth
, &ptHeight
, &ptDepth
, &ptLayers
);
1316 stObj
->pt
= st_texture_create(st
,
1317 gl_target_to_pipe(texObj
->Target
),
1328 /* Set image resource pointers */
1329 for (level
= 0; level
< levels
; level
++) {
1331 for (face
= 0; face
< numFaces
; face
++) {
1332 struct st_texture_image
*stImage
=
1333 st_texture_image(texObj
->Image
[face
][level
]);
1334 pipe_resource_reference(&stImage
->pt
, stObj
->pt
);
1343 st_TestProxyTexImage(struct gl_context
*ctx
, GLenum target
,
1344 GLint level
, gl_format format
,
1345 GLint width
, GLint height
,
1346 GLint depth
, GLint border
)
1348 struct st_context
*st
= st_context(ctx
);
1349 struct pipe_context
*pipe
= st
->pipe
;
1351 if (width
== 0 || height
== 0 || depth
== 0) {
1352 /* zero-sized images are legal, and always fit! */
1356 if (pipe
->screen
->can_create_resource
) {
1357 /* Ask the gallium driver if the texture is too large */
1358 struct gl_texture_object
*texObj
=
1359 _mesa_get_current_tex_object(ctx
, target
);
1360 struct pipe_resource pt
;
1362 /* Setup the pipe_resource object
1364 memset(&pt
, 0, sizeof(pt
));
1366 pt
.target
= gl_target_to_pipe(target
);
1367 pt
.format
= st_mesa_format_to_pipe_format(format
);
1369 st_gl_texture_dims_to_pipe_dims(target
,
1370 width
, height
, depth
,
1371 &pt
.width0
, &pt
.height0
,
1372 &pt
.depth0
, &pt
.array_size
);
1374 if (level
== 0 && (texObj
->Sampler
.MinFilter
== GL_LINEAR
||
1375 texObj
->Sampler
.MinFilter
== GL_NEAREST
)) {
1376 /* assume just one mipmap level */
1380 /* assume a full set of mipmaps */
1381 pt
.last_level
= _mesa_logbase2(MAX3(width
, height
, depth
));
1384 return pipe
->screen
->can_create_resource(pipe
->screen
, &pt
);
1387 /* Use core Mesa fallback */
1388 return _mesa_test_proxy_teximage(ctx
, target
, level
, format
,
1389 width
, height
, depth
, border
);
1395 st_init_texture_functions(struct dd_function_table
*functions
)
1397 functions
->ChooseTextureFormat
= st_ChooseTextureFormat
;
1398 functions
->TexImage
= st_TexImage
;
1399 functions
->TexSubImage
= _mesa_store_texsubimage
;
1400 functions
->CompressedTexSubImage
= _mesa_store_compressed_texsubimage
;
1401 functions
->CopyTexSubImage
= st_CopyTexSubImage
;
1402 functions
->GenerateMipmap
= st_generate_mipmap
;
1404 functions
->GetTexImage
= st_GetTexImage
;
1406 /* compressed texture functions */
1407 functions
->CompressedTexImage
= st_CompressedTexImage
;
1408 functions
->GetCompressedTexImage
= _mesa_get_compressed_teximage
;
1410 functions
->NewTextureObject
= st_NewTextureObject
;
1411 functions
->NewTextureImage
= st_NewTextureImage
;
1412 functions
->DeleteTextureImage
= st_DeleteTextureImage
;
1413 functions
->DeleteTexture
= st_DeleteTextureObject
;
1414 functions
->AllocTextureImageBuffer
= st_AllocTextureImageBuffer
;
1415 functions
->FreeTextureImageBuffer
= st_FreeTextureImageBuffer
;
1416 functions
->MapTextureImage
= st_MapTextureImage
;
1417 functions
->UnmapTextureImage
= st_UnmapTextureImage
;
1419 /* XXX Temporary until we can query pipe's texture sizes */
1420 functions
->TestProxyTexImage
= st_TestProxyTexImage
;
1422 functions
->AllocTextureStorage
= st_AllocTextureStorage
;