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| author | Chia-I Wu <olv@lunarg.com> | 2010-11-23 22:39:31 +0800 |
|---|---|---|
| committer | Chia-I Wu <olv@lunarg.com> | 2010-12-01 11:23:51 +0800 |
| commit | d873f1f5b63e7243c20751e92389e4189d39fd42 (patch) | |
| tree | 674424e26c148cbb7346fb6f3fec049caa892d65 | |
| parent | 56f02cedfaca9755d2855ec3fe075ccfe5e85c0a (diff) | |
st/vega: Fix image sampler views for alpha-only formats.
For alpha-only VG formats, R = G = B = 1.0.
| -rw-r--r-- | src/gallium/state_trackers/vega/image.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/vega/image.c b/src/gallium/state_trackers/vega/image.c index 303e979012..c5421f84cc 100644 --- a/src/gallium/state_trackers/vega/image.c +++ b/src/gallium/state_trackers/vega/image.c @@ -272,6 +272,13 @@ struct vg_image * image_create(VGImageFormat format, debug_assert(newtex); u_sampler_view_default_template(&view_templ, newtex, newtex->format); + /* R, G, and B are treated as 1.0 for alpha-only formats in OpenVG */ + if (newtex->format == PIPE_FORMAT_A8_UNORM) { + view_templ.swizzle_r = PIPE_SWIZZLE_ONE; + view_templ.swizzle_g = PIPE_SWIZZLE_ONE; + view_templ.swizzle_b = PIPE_SWIZZLE_ONE; + } + view = pipe->create_sampler_view(pipe, newtex, &view_templ); /* want the texture to go away if the view is freed */ pipe_resource_reference(&newtex, NULL); |