Module: Mesa
Branch: master
Commit: 3c3b1184eb57951c8a40258c9214a1aece1602e6
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=3c3b1184eb57951c8a40258c9214a1aece1602e6
Author: Eric Anholt <e...@anholt.net>
Date: Mon Jun 22 17:41:08 2015 -0700
vc4: Add support for laying out MSAA resources.
For MSAA, we store full resolution tile buffer contents, which have their
own tiling format. Since they're full resolution buffers, we have to
align their size to full tiles.
---
src/gallium/drivers/vc4/vc4_resource.c | 25 ++++++++++++++++++++-----
1 file changed, 20 insertions(+), 5 deletions(-)
diff --git a/src/gallium/drivers/vc4/vc4_resource.c
b/src/gallium/drivers/vc4/vc4_resource.c
index bb72384..43d9ca8 100644
--- a/src/gallium/drivers/vc4/vc4_resource.c
+++ b/src/gallium/drivers/vc4/vc4_resource.c
@@ -283,7 +283,13 @@ vc4_setup_slices(struct vc4_resource *rsc)
if (!rsc->tiled) {
slice->tiling = VC4_TILING_FORMAT_LINEAR;
- level_width = align(level_width, utile_w);
+ if (prsc->nr_samples) {
+ /* MSAA (4x) surfaces are stored as raw tile
buffer contents. */
+ level_width = align(level_width, 32);
+ level_height = align(level_height, 32);
+ } else {
+ level_width = align(level_width, utile_w);
+ }
} else {
if (vc4_size_is_lt(level_width, level_height,
rsc->cpp)) {
@@ -300,7 +306,8 @@ vc4_setup_slices(struct vc4_resource *rsc)
}
slice->offset = offset;
- slice->stride = level_width * rsc->cpp;
+ slice->stride = (level_width * rsc->cpp *
+ MAX2(prsc->nr_samples, 1));
slice->size = level_height * slice->stride;
offset += slice->size;
@@ -357,7 +364,10 @@ vc4_resource_setup(struct pipe_screen *pscreen,
prsc->screen = pscreen;
rsc->base.vtbl = &vc4_resource_vtbl;
- rsc->cpp = util_format_get_blocksize(tmpl->format);
+ if (prsc->nr_samples == 0)
+ rsc->cpp = util_format_get_blocksize(tmpl->format);
+ else
+ rsc->cpp = sizeof(uint32_t);
assert(rsc->cpp);
@@ -371,8 +381,12 @@ get_resource_texture_format(struct pipe_resource *prsc)
uint8_t format = vc4_get_tex_format(prsc->format);
if (!rsc->tiled) {
- assert(format == VC4_TEXTURE_TYPE_RGBA8888);
- return VC4_TEXTURE_TYPE_RGBA32R;
+ if (prsc->nr_samples) {
+ return ~0;
+ } else {
+ assert(format == VC4_TEXTURE_TYPE_RGBA8888);
+ return VC4_TEXTURE_TYPE_RGBA32R;
+ }
}
return format;
@@ -389,6 +403,7 @@ vc4_resource_create(struct pipe_screen *pscreen,
* communicate metadata about tiling currently.
*/
if (tmpl->target == PIPE_BUFFER ||
+ tmpl->nr_samples ||
(tmpl->bind & (PIPE_BIND_SCANOUT |
PIPE_BIND_LINEAR |
PIPE_BIND_SHARED |
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