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ilo: fix tiling/size for special-purpose resources

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We do not allocate such resources yet though.
This commit is contained in:
Chia-I Wu
2013-04-30 15:30:01 +08:00
parent 7726e9500c
commit dd62e7bc02
1 changed files with 30 additions and 2 deletions
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src/gallium/drivers/ilo/ilo_resource.c
+30 -2
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@@ -32,6 +32,9 @@
#include "ilo_screen.h"
#include "ilo_resource.h"
/* use PIPE_BIND_CUSTOM to indicate MCS */
#define ILO_BIND_MCS PIPE_BIND_CUSTOM
static struct intel_bo *
alloc_buf_bo(const struct ilo_resource *res)
{
@@ -997,6 +1000,14 @@ get_tex_tiling(const struct ilo_resource *res)
if (unlikely(templ->bind & PIPE_BIND_CURSOR))
return INTEL_TILING_NONE;
/*
* From the Ivy Bridge PRM, volume 4 part 1, page 76:
*
* "The MCS surface must be stored as Tile Y."
*/
if (templ->bind & ILO_BIND_MCS)
return INTEL_TILING_Y;
/*
* From the Sandy Bridge PRM, volume 2 part 1, page 318:
*
@@ -1005,8 +1016,11 @@ get_tex_tiling(const struct ilo_resource *res)
*
* "The Depth Buffer, if tiled, must use Y-Major tiling."
*/
if (templ->bind & PIPE_BIND_DEPTH_STENCIL)
return INTEL_TILING_Y;
if (templ->bind & PIPE_BIND_DEPTH_STENCIL) {
/* separate stencil uses W-tiling but we do not know how to specify that */
return (templ->format == PIPE_FORMAT_S8_UINT) ?
INTEL_TILING_NONE : INTEL_TILING_Y;
}
if (templ->bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW)) {
enum intel_tiling_mode tiling = INTEL_TILING_NONE;
@@ -1085,6 +1099,20 @@ init_texture(struct ilo_resource *res)
break;
}
/*
* From the Sandy Bridge PRM, volume 1 part 2, page 22:
*
* "A 4KB tile is subdivided into 8-high by 8-wide array of Blocks for
* W-Major Tiles (W Tiles). Each Block is 8 rows by 8 bytes."
*
* Since we ask for INTEL_TILING_NONE instead lf INTEL_TILING_W, we need to
* manually align the bo width and height to the tile boundaries.
*/
if (format == PIPE_FORMAT_S8_UINT) {
res->bo_width = align(res->bo_width, 64);
res->bo_height = align(res->bo_height, 64);
}
/* in blocks */
assert(res->bo_width % info.block_width == 0);
assert(res->bo_height % info.block_height == 0);