1 /**********************************************************
2 * Copyright 2008-2009 VMware, Inc. All rights reserved.
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 **********************************************************/
28 #include "pipe/p_state.h"
29 #include "pipe/p_defines.h"
30 #include "util/u_inlines.h"
31 #include "os/os_thread.h"
32 #include "util/u_bitmask.h"
33 #include "util/u_format.h"
34 #include "util/u_math.h"
35 #include "util/u_memory.h"
37 #include "svga_format.h"
38 #include "svga_screen.h"
39 #include "svga_context.h"
40 #include "svga_sampler_view.h"
41 #include "svga_resource_texture.h"
42 #include "svga_surface.h"
43 #include "svga_debug.h"
45 static void svga_mark_surface_dirty(struct pipe_surface
*surf
);
48 svga_texture_copy_handle(struct svga_context
*svga
,
49 struct svga_winsys_surface
*src_handle
,
50 unsigned src_x
, unsigned src_y
, unsigned src_z
,
51 unsigned src_level
, unsigned src_layer
,
52 struct svga_winsys_surface
*dst_handle
,
53 unsigned dst_x
, unsigned dst_y
, unsigned dst_z
,
54 unsigned dst_level
, unsigned dst_layer
,
55 unsigned width
, unsigned height
, unsigned depth
)
57 struct svga_surface dst
, src
;
59 SVGA3dCopyBox box
, *boxes
;
63 src
.handle
= src_handle
;
64 src
.real_level
= src_level
;
65 src
.real_layer
= src_layer
;
68 dst
.handle
= dst_handle
;
69 dst
.real_level
= dst_level
;
70 dst
.real_layer
= dst_layer
;
84 SVGA_DBG(DEBUG_VIEWS, "mipcopy src: %p %u (%ux%ux%u), dst: %p %u (%ux%ux%u)\n",
85 src_handle, src_level, src_x, src_y, src_z,
86 dst_handle, dst_level, dst_x, dst_y, dst_z);
89 ret
= SVGA3D_BeginSurfaceCopy(svga
->swc
,
94 svga_context_flush(svga
, NULL
);
95 ret
= SVGA3D_BeginSurfaceCopy(svga
->swc
,
99 assert(ret
== PIPE_OK
);
102 SVGA_FIFOCommitAll(svga
->swc
);
106 struct svga_winsys_surface
*
107 svga_texture_view_surface(struct svga_context
*svga
,
108 struct svga_texture
*tex
,
110 SVGA3dSurfaceFlags flags
,
111 SVGA3dSurfaceFormat format
,
117 struct svga_host_surface_cache_key
*key
) /* OUT */
119 struct svga_screen
*ss
= svga_screen(svga
->pipe
.screen
);
120 struct svga_winsys_surface
*handle
;
122 unsigned z_offset
= 0;
126 "svga: Create surface view: layer %d zslice %d mips %d..%d\n",
127 layer_pick
, zslice_pick
, start_mip
, start_mip
+num_mip
-1);
130 key
->format
= format
;
131 key
->numMipLevels
= num_mip
;
132 key
->size
.width
= u_minify(tex
->b
.b
.width0
, start_mip
);
133 key
->size
.height
= u_minify(tex
->b
.b
.height0
, start_mip
);
134 key
->size
.depth
= zslice_pick
< 0 ? u_minify(tex
->b
.b
.depth0
, start_mip
) : 1;
139 /* single sample surface can be treated as non-multisamples surface */
140 key
->sampleCount
= tex
->b
.b
.nr_samples
> 1 ? tex
->b
.b
.nr_samples
: 0;
142 if (key
->sampleCount
> 1) {
143 key
->flags
|= SVGA3D_SURFACE_MASKABLE_ANTIALIAS
;
146 if (tex
->b
.b
.target
== PIPE_TEXTURE_CUBE
&& layer_pick
< 0) {
147 key
->flags
|= SVGA3D_SURFACE_CUBEMAP
;
149 } else if (tex
->b
.b
.target
== PIPE_TEXTURE_1D_ARRAY
||
150 tex
->b
.b
.target
== PIPE_TEXTURE_2D_ARRAY
) {
151 key
->arraySize
= num_layers
;
154 if (key
->format
== SVGA3D_FORMAT_INVALID
) {
159 SVGA_DBG(DEBUG_DMA
, "surface_create for texture view\n");
160 handle
= svga_screen_surface_create(ss
, bind_flags
, PIPE_USAGE_DEFAULT
,
167 SVGA_DBG(DEBUG_DMA
, " --> got sid %p (texture view)\n", handle
);
172 if (zslice_pick
>= 0)
173 z_offset
= zslice_pick
;
175 for (i
= 0; i
< key
->numMipLevels
; i
++) {
176 for (j
= 0; j
< key
->numFaces
* key
->arraySize
; j
++) {
177 if (svga_is_texture_level_defined(tex
, j
+ layer_pick
, i
+ start_mip
)) {
178 unsigned depth
= (zslice_pick
< 0 ?
179 u_minify(tex
->b
.b
.depth0
, i
+ start_mip
) :
182 svga_texture_copy_handle(svga
,
187 handle
, 0, 0, 0, i
, j
,
188 u_minify(tex
->b
.b
.width0
, i
+ start_mip
),
189 u_minify(tex
->b
.b
.height0
, i
+ start_mip
),
200 * A helper function to create a surface view.
201 * The view boolean flag specifies whether svga_texture_view_surface()
202 * will be called to create a cloned surface and resource for the view.
204 static struct pipe_surface
*
205 svga_create_surface_view(struct pipe_context
*pipe
,
206 struct pipe_resource
*pt
,
207 const struct pipe_surface
*surf_tmpl
,
210 struct svga_context
*svga
= svga_context(pipe
);
211 struct svga_texture
*tex
= svga_texture(pt
);
212 struct pipe_screen
*screen
= pipe
->screen
;
213 struct svga_screen
*ss
= svga_screen(screen
);
214 struct svga_surface
*s
;
215 unsigned layer
, zslice
, bind
;
216 unsigned nlayers
= 1;
217 SVGA3dSurfaceFlags flags
= 0;
218 SVGA3dSurfaceFormat format
;
219 struct pipe_surface
*retVal
= NULL
;
221 s
= CALLOC_STRUCT(svga_surface
);
225 SVGA_STATS_TIME_PUSH(ss
->sws
, SVGA_STATS_TIME_CREATESURFACEVIEW
);
227 if (pt
->target
== PIPE_TEXTURE_CUBE
) {
228 layer
= surf_tmpl
->u
.tex
.first_layer
;
231 else if (pt
->target
== PIPE_TEXTURE_1D_ARRAY
||
232 pt
->target
== PIPE_TEXTURE_2D_ARRAY
) {
233 layer
= surf_tmpl
->u
.tex
.first_layer
;
235 nlayers
= surf_tmpl
->u
.tex
.last_layer
- surf_tmpl
->u
.tex
.first_layer
+ 1;
239 zslice
= surf_tmpl
->u
.tex
.first_layer
;
242 pipe_reference_init(&s
->base
.reference
, 1);
243 pipe_resource_reference(&s
->base
.texture
, pt
);
244 s
->base
.context
= pipe
;
245 s
->base
.format
= surf_tmpl
->format
;
246 s
->base
.width
= u_minify(pt
->width0
, surf_tmpl
->u
.tex
.level
);
247 s
->base
.height
= u_minify(pt
->height0
, surf_tmpl
->u
.tex
.level
);
248 s
->base
.u
.tex
.level
= surf_tmpl
->u
.tex
.level
;
249 s
->base
.u
.tex
.first_layer
= surf_tmpl
->u
.tex
.first_layer
;
250 s
->base
.u
.tex
.last_layer
= surf_tmpl
->u
.tex
.last_layer
;
251 s
->view_id
= SVGA3D_INVALID_ID
;
255 if (util_format_is_depth_or_stencil(surf_tmpl
->format
)) {
256 flags
= SVGA3D_SURFACE_HINT_DEPTHSTENCIL
|
257 SVGA3D_SURFACE_BIND_DEPTH_STENCIL
;
258 bind
= PIPE_BIND_DEPTH_STENCIL
;
261 flags
= SVGA3D_SURFACE_HINT_RENDERTARGET
|
262 SVGA3D_SURFACE_BIND_RENDER_TARGET
;
263 bind
= PIPE_BIND_RENDER_TARGET
;
267 format
= tex
->key
.format
;
269 format
= svga_translate_format(ss
, surf_tmpl
->format
, bind
);
271 assert(format
!= SVGA3D_FORMAT_INVALID
);
274 SVGA_DBG(DEBUG_VIEWS
, "svga: Surface view: yes %p, level %u layer %u z %u, %p\n",
275 pt
, surf_tmpl
->u
.tex
.level
, layer
, zslice
, s
);
277 if (svga_have_vgpu10(svga
)) {
278 switch (pt
->target
) {
279 case PIPE_TEXTURE_1D
:
280 flags
|= SVGA3D_SURFACE_1D
;
282 case PIPE_TEXTURE_1D_ARRAY
:
283 flags
|= SVGA3D_SURFACE_1D
| SVGA3D_SURFACE_ARRAY
;
285 case PIPE_TEXTURE_2D_ARRAY
:
286 flags
|= SVGA3D_SURFACE_ARRAY
;
288 case PIPE_TEXTURE_3D
:
289 flags
|= SVGA3D_SURFACE_VOLUME
;
291 case PIPE_TEXTURE_CUBE
:
293 flags
|= SVGA3D_SURFACE_CUBEMAP
;
300 /* When we clone the surface view resource, use the format used in
301 * the creation of the original resource.
303 s
->handle
= svga_texture_view_surface(svga
, tex
, bind
, flags
,
305 surf_tmpl
->u
.tex
.level
, 1,
306 layer
, nlayers
, zslice
, &s
->key
);
312 s
->key
.format
= format
;
317 SVGA_DBG(DEBUG_VIEWS
,
318 "svga: Surface view: no %p, level %u, layer %u, z %u, %p\n",
319 pt
, surf_tmpl
->u
.tex
.level
, layer
, zslice
, s
);
321 memset(&s
->key
, 0, sizeof s
->key
);
322 s
->key
.format
= format
;
323 s
->handle
= tex
->handle
;
324 s
->real_layer
= layer
;
325 s
->real_zslice
= zslice
;
326 s
->real_level
= surf_tmpl
->u
.tex
.level
;
329 svga
->hud
.num_surface_views
++;
333 SVGA_STATS_TIME_POP(ss
->sws
);
338 static struct pipe_surface
*
339 svga_create_surface(struct pipe_context
*pipe
,
340 struct pipe_resource
*pt
,
341 const struct pipe_surface
*surf_tmpl
)
343 struct svga_context
*svga
= svga_context(pipe
);
344 struct pipe_screen
*screen
= pipe
->screen
;
345 struct pipe_surface
*surf
= NULL
;
346 boolean view
= FALSE
;
348 SVGA_STATS_TIME_PUSH(svga_sws(svga
), SVGA_STATS_TIME_CREATESURFACE
);
350 if (svga_screen(screen
)->debug
.force_surface_view
)
353 if (surf_tmpl
->u
.tex
.level
!= 0 &&
354 svga_screen(screen
)->debug
.force_level_surface_view
)
357 if (pt
->target
== PIPE_TEXTURE_3D
)
360 if (svga_have_vgpu10(svga
) || svga_screen(screen
)->debug
.no_surface_view
)
363 surf
= svga_create_surface_view(pipe
, pt
, surf_tmpl
, view
);
365 SVGA_STATS_TIME_POP(svga_sws(svga
));
372 * Clone the surface view and its associated resource.
374 static struct svga_surface
*
375 create_backed_surface_view(struct svga_context
*svga
, struct svga_surface
*s
)
377 SVGA_STATS_TIME_PUSH(svga_sws(svga
),
378 SVGA_STATS_TIME_CREATEBACKEDSURFACEVIEW
);
381 struct svga_texture
*tex
= svga_texture(s
->base
.texture
);
382 struct pipe_surface
*backed_view
;
384 backed_view
= svga_create_surface_view(&svga
->pipe
,
391 s
->backed
= svga_surface(backed_view
);
394 svga_mark_surface_dirty(&s
->backed
->base
);
396 SVGA_STATS_TIME_POP(svga_sws(svga
));
402 * Create a DX RenderTarget/DepthStencil View for the given surface,
405 struct pipe_surface
*
406 svga_validate_surface_view(struct svga_context
*svga
, struct svga_surface
*s
)
408 enum pipe_error ret
= PIPE_OK
;
409 enum pipe_shader_type shader
;
411 assert(svga_have_vgpu10(svga
));
414 SVGA_STATS_TIME_PUSH(svga_sws(svga
),
415 SVGA_STATS_TIME_VALIDATESURFACEVIEW
);
418 * DX spec explicitly specifies that no resource can be bound to a render
419 * target view and a shader resource view simultanously.
420 * So first check if the resource bound to this surface view collides with
421 * a sampler view. If so, then we will clone this surface view and its
422 * associated resource. We will then use the cloned surface view for
425 for (shader
= PIPE_SHADER_VERTEX
; shader
<= PIPE_SHADER_GEOMETRY
; shader
++) {
426 if (svga_check_sampler_view_resource_collision(svga
, s
->handle
, shader
)) {
427 SVGA_DBG(DEBUG_VIEWS
,
428 "same resource used in shaderResource and renderTarget 0x%x\n",
430 s
= create_backed_surface_view(svga
, s
);
431 /* s may be null here if the function failed */
436 if (s
&& s
->view_id
== SVGA3D_INVALID_ID
) {
437 SVGA3dResourceType resType
;
438 SVGA3dRenderTargetViewDesc desc
;
439 struct svga_texture
*stex
= svga_texture(s
->base
.texture
);
441 if (stex
->validated
== FALSE
) {
442 assert(stex
->handle
);
444 /* We are about to render into a surface that has not been validated.
445 * First invalidate the surface so that the device does not
446 * need to update the host-side copy with the invalid
447 * content when the associated mob is first bound to the surface.
449 ret
= SVGA3D_InvalidateGBSurface(svga
->swc
, stex
->handle
);
450 if (ret
!= PIPE_OK
) {
454 stex
->validated
= TRUE
;
457 desc
.tex
.mipSlice
= s
->real_level
;
458 desc
.tex
.firstArraySlice
= s
->real_layer
+ s
->real_zslice
;
460 s
->base
.u
.tex
.last_layer
- s
->base
.u
.tex
.first_layer
+ 1;
462 s
->view_id
= util_bitmask_add(svga
->surface_view_id_bm
);
464 resType
= svga_resource_type(s
->base
.texture
->target
);
466 if (util_format_is_depth_or_stencil(s
->base
.format
)) {
467 ret
= SVGA3D_vgpu10_DefineDepthStencilView(svga
->swc
,
475 SVGA3dSurfaceFormat view_format
= s
->key
.format
;
476 const struct svga_texture
*stex
= svga_texture(s
->base
.texture
);
478 /* Can't create RGBA render target view of a RGBX surface so adjust
479 * the view format. We do something similar for texture samplers in
480 * svga_validate_pipe_sampler_view().
482 if (view_format
== SVGA3D_B8G8R8A8_UNORM
&&
483 (stex
->key
.format
== SVGA3D_B8G8R8X8_UNORM
||
484 stex
->key
.format
== SVGA3D_B8G8R8X8_TYPELESS
)) {
485 view_format
= SVGA3D_B8G8R8X8_UNORM
;
488 ret
= SVGA3D_vgpu10_DefineRenderTargetView(svga
->swc
,
496 if (ret
!= PIPE_OK
) {
497 util_bitmask_clear(svga
->surface_view_id_bm
, s
->view_id
);
498 s
->view_id
= SVGA3D_INVALID_ID
;
504 SVGA_STATS_TIME_POP(svga_sws(svga
));
506 return s
? &s
->base
: NULL
;
512 svga_surface_destroy(struct pipe_context
*pipe
,
513 struct pipe_surface
*surf
)
515 struct svga_context
*svga
= svga_context(pipe
);
516 struct svga_surface
*s
= svga_surface(surf
);
517 struct svga_texture
*t
= svga_texture(surf
->texture
);
518 struct svga_screen
*ss
= svga_screen(surf
->texture
->screen
);
519 enum pipe_error ret
= PIPE_OK
;
521 SVGA_STATS_TIME_PUSH(ss
->sws
, SVGA_STATS_TIME_DESTROYSURFACE
);
523 /* Destroy the backed view surface if it exists */
525 svga_surface_destroy(pipe
, &s
->backed
->base
);
529 if (s
->handle
!= t
->handle
) {
530 SVGA_DBG(DEBUG_DMA
, "unref sid %p (tex surface)\n", s
->handle
);
531 svga_screen_surface_destroy(ss
, &s
->key
, &s
->handle
);
534 if (s
->view_id
!= SVGA3D_INVALID_ID
) {
537 /* The SVGA3D device will generate a device error if the
538 * render target view or depth stencil view is destroyed from
539 * a context other than the one it was created with.
540 * Similar to shader resource view, in this case, we will skip
541 * the destroy for now.
543 if (surf
->context
!= pipe
) {
544 _debug_printf("context mismatch in %s\n", __func__
);
547 assert(svga_have_vgpu10(svga
));
548 for (try = 0; try < 2; try++) {
549 if (util_format_is_depth_or_stencil(s
->base
.format
)) {
550 ret
= SVGA3D_vgpu10_DestroyDepthStencilView(svga
->swc
, s
->view_id
);
553 ret
= SVGA3D_vgpu10_DestroyRenderTargetView(svga
->swc
, s
->view_id
);
557 svga_context_flush(svga
, NULL
);
559 assert(ret
== PIPE_OK
);
560 util_bitmask_clear(svga
->surface_view_id_bm
, s
->view_id
);
564 pipe_resource_reference(&surf
->texture
, NULL
);
567 svga
->hud
.num_surface_views
--;
568 SVGA_STATS_TIME_POP(ss
->sws
);
573 svga_mark_surface_dirty(struct pipe_surface
*surf
)
575 struct svga_surface
*s
= svga_surface(surf
);
576 struct svga_texture
*tex
= svga_texture(surf
->texture
);
581 if (s
->handle
== tex
->handle
) {
582 /* hmm so 3d textures always have all their slices marked ? */
583 svga_define_texture_level(tex
, surf
->u
.tex
.first_layer
,
587 /* this will happen later in svga_propagate_surface */
591 /* Increment the view_age and texture age for this surface's mipmap
592 * level so that any sampler views into the texture are re-validated too.
594 svga_age_texture_view(tex
, surf
->u
.tex
.level
);
599 svga_mark_surfaces_dirty(struct svga_context
*svga
)
603 for (i
= 0; i
< svga
->curr
.framebuffer
.nr_cbufs
; i
++) {
604 if (svga
->curr
.framebuffer
.cbufs
[i
])
605 svga_mark_surface_dirty(svga
->curr
.framebuffer
.cbufs
[i
]);
607 if (svga
->curr
.framebuffer
.zsbuf
)
608 svga_mark_surface_dirty(svga
->curr
.framebuffer
.zsbuf
);
613 * Progagate any changes from surfaces to texture.
614 * pipe is optional context to inline the blit command in.
617 svga_propagate_surface(struct svga_context
*svga
, struct pipe_surface
*surf
)
619 struct svga_surface
*s
= svga_surface(surf
);
620 struct svga_texture
*tex
= svga_texture(surf
->texture
);
621 struct svga_screen
*ss
= svga_screen(surf
->texture
->screen
);
626 SVGA_STATS_TIME_PUSH(ss
->sws
, SVGA_STATS_TIME_PROPAGATESURFACE
);
629 ss
->texture_timestamp
++;
630 svga_age_texture_view(tex
, surf
->u
.tex
.level
);
632 if (s
->handle
!= tex
->handle
) {
633 unsigned zslice
, layer
;
634 unsigned nlayers
= 1;
637 if (surf
->texture
->target
== PIPE_TEXTURE_CUBE
) {
639 layer
= surf
->u
.tex
.first_layer
;
641 else if (surf
->texture
->target
== PIPE_TEXTURE_1D_ARRAY
||
642 surf
->texture
->target
== PIPE_TEXTURE_2D_ARRAY
) {
644 layer
= surf
->u
.tex
.first_layer
;
645 nlayers
= surf
->u
.tex
.last_layer
- surf
->u
.tex
.first_layer
+ 1;
648 zslice
= surf
->u
.tex
.first_layer
;
652 SVGA_DBG(DEBUG_VIEWS
,
653 "svga: Surface propagate: tex %p, level %u, from %p\n",
654 tex
, surf
->u
.tex
.level
, surf
);
655 for (i
= 0; i
< nlayers
; i
++) {
656 svga_texture_copy_handle(svga
,
657 s
->handle
, 0, 0, 0, s
->real_level
,
659 tex
->handle
, 0, 0, zslice
, surf
->u
.tex
.level
,
661 u_minify(tex
->b
.b
.width0
, surf
->u
.tex
.level
),
662 u_minify(tex
->b
.b
.height0
, surf
->u
.tex
.level
),
664 svga_define_texture_level(tex
, layer
+ i
, surf
->u
.tex
.level
);
668 SVGA_STATS_TIME_POP(ss
->sws
);
673 * If any of the render targets are in backing texture views, propagate any
674 * changes to them back to the original texture.
677 svga_propagate_rendertargets(struct svga_context
*svga
)
681 /* Note that we examine the svga->state.hw_draw.framebuffer surfaces,
682 * not the svga->curr.framebuffer surfaces, because it's the former
683 * surfaces which may be backing surface views (the actual render targets).
685 for (i
= 0; i
< svga
->state
.hw_draw
.num_rendertargets
; i
++) {
686 struct pipe_surface
*s
= svga
->state
.hw_draw
.rtv
[i
];
688 svga_propagate_surface(svga
, s
);
692 if (svga
->state
.hw_draw
.dsv
) {
693 svga_propagate_surface(svga
, svga
->state
.hw_draw
.dsv
);
699 * Check if we should call svga_propagate_surface on the surface.
702 svga_surface_needs_propagation(const struct pipe_surface
*surf
)
704 const struct svga_surface
*s
= svga_surface_const(surf
);
705 struct svga_texture
*tex
= svga_texture(surf
->texture
);
707 return s
->dirty
&& s
->handle
!= tex
->handle
;
712 svga_get_sample_position(struct pipe_context
*context
,
713 unsigned sample_count
, unsigned sample_index
,
716 /* We can't actually query the device to learn the sample positions.
717 * These were grabbed from nvidia's driver.
719 static const float pos1
[1][2] = {
722 static const float pos4
[4][2] = {
723 { 0.375000, 0.125000 },
724 { 0.875000, 0.375000 },
725 { 0.125000, 0.625000 },
726 { 0.625000, 0.875000 }
728 static const float pos8
[8][2] = {
729 { 0.562500, 0.312500 },
730 { 0.437500, 0.687500 },
731 { 0.812500, 0.562500 },
732 { 0.312500, 0.187500 },
733 { 0.187500, 0.812500 },
734 { 0.062500, 0.437500 },
735 { 0.687500, 0.937500 },
736 { 0.937500, 0.062500 }
738 static const float pos16
[16][2] = {
739 { 0.187500, 0.062500 },
740 { 0.437500, 0.187500 },
741 { 0.062500, 0.312500 },
742 { 0.312500, 0.437500 },
743 { 0.687500, 0.062500 },
744 { 0.937500, 0.187500 },
745 { 0.562500, 0.312500 },
746 { 0.812500, 0.437500 },
747 { 0.187500, 0.562500 },
748 { 0.437500, 0.687500 },
749 { 0.062500, 0.812500 },
750 { 0.312500, 0.937500 },
751 { 0.687500, 0.562500 },
752 { 0.937500, 0.687500 },
753 { 0.562500, 0.812500 },
754 { 0.812500, 0.937500 }
756 const float (*positions
)[2];
758 switch (sample_count
) {
772 pos_out
[0] = positions
[sample_index
][0];
773 pos_out
[1] = positions
[sample_index
][1];
778 svga_init_surface_functions(struct svga_context
*svga
)
780 svga
->pipe
.create_surface
= svga_create_surface
;
781 svga
->pipe
.surface_destroy
= svga_surface_destroy
;
782 svga
->pipe
.get_sample_position
= svga_get_sample_position
;