Mesa (master): nv50: use 2d blit when src/dst have same number of samples
Ilia Mirkin
imirkin at kemper.freedesktop.org
Sun Apr 20 04:31:38 UTC 2014
Module: Mesa
Branch: master
Commit: 6d5c3c826006759465144480e986de48740288e2
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=6d5c3c826006759465144480e986de48740288e2
Author: Ilia Mirkin <imirkin at alum.mit.edu>
Date: Thu Apr 17 23:51:25 2014 -0400
nv50: use 2d blit when src/dst have same number of samples
The 2D engine should be usable in more cases, but this fixes MS blits
between textures with the same MS settings. Otherwise a single sample is
selected to be the target texel value.
This allows other tests to work that render to a RB and then blit that
to a texture for input into a shader that uses sampler2DMS to verify it.
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---
src/gallium/drivers/nouveau/nv50/nv50_surface.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_surface.c b/src/gallium/drivers/nouveau/nv50/nv50_surface.c
index 9da88c1..e60aec5 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_surface.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_surface.c
@@ -1292,8 +1292,8 @@ nv50_blit_eng2d(struct nv50_context *nv50, const struct pipe_blit_info *info)
if (src->base.base.nr_samples > dst->base.base.nr_samples) {
/* center src coorinates for proper MS resolve filtering */
- srcx += (int64_t)src->ms_x << 32;
- srcy += (int64_t)src->ms_y << 32;
+ srcx += (int64_t)1 << (src->ms_x + 31);
+ srcy += (int64_t)1 << (src->ms_y + 31);
}
dstx = info->dst.box.x << dst->ms_x;
@@ -1431,8 +1431,8 @@ nv50_blit(struct pipe_context *pipe, const struct pipe_blit_info *info)
eng3d = TRUE;
/* FIXME: can't make this work with eng2d anymore */
- if (info->src.resource->nr_samples > 1 ||
- info->dst.resource->nr_samples > 1)
+ if ((info->src.resource->nr_samples | 1) !=
+ (info->dst.resource->nr_samples | 1))
eng3d = TRUE;
/* FIXME: find correct src coordinate adjustments */
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