diff options
author | egdaniel <egdaniel@google.com> | 2016-08-11 13:44:23 -0700 |
---|---|---|
committer | Commit bot <commit-bot@chromium.org> | 2016-08-11 13:44:23 -0700 |
commit | 637b3bf2b9c10398d823bd015a722842d4f2f971 (patch) | |
tree | c155de4d14370817ca285dd0edec4b4a567a1eca /src/gpu/vk/GrVkCaps.cpp | |
parent | bcba19dd0232f9ec75dae8f5987e0d15bbf93c41 (diff) |
Fix 4444 on Vulkan devices who don't support RGBA_4444
BUG=skia:
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2238563002
Review-Url: https://codereview.chromium.org/2238563002
Diffstat (limited to 'src/gpu/vk/GrVkCaps.cpp')
-rw-r--r-- | src/gpu/vk/GrVkCaps.cpp | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/gpu/vk/GrVkCaps.cpp b/src/gpu/vk/GrVkCaps.cpp index cf9f4f025e..9027f68815 100644 --- a/src/gpu/vk/GrVkCaps.cpp +++ b/src/gpu/vk/GrVkCaps.cpp @@ -137,7 +137,16 @@ void GrVkCaps::initGLSLCaps(const VkPhysicalDeviceProperties& properties, glslCaps->fConfigTextureSwizzle[i] = GrSwizzle::RRRR(); glslCaps->fConfigOutputSwizzle[i] = GrSwizzle::AAAA(); } else { - glslCaps->fConfigTextureSwizzle[i] = GrSwizzle::RGBA(); + if (kRGBA_4444_GrPixelConfig == config) { + // The vulkan spec does not require R4G4B4A4 to be supported for texturing so we + // store the data in a B4G4R4A4 texture and then swizzle it when doing texture reads + // or writing to outputs. Since we're not actually changing the data at all, the + // only extra work is the swizzle in the shader for all operations. + glslCaps->fConfigTextureSwizzle[i] = GrSwizzle::BGRA(); + glslCaps->fConfigOutputSwizzle[i] = GrSwizzle::BGRA(); + } else { + glslCaps->fConfigTextureSwizzle[i] = GrSwizzle::RGBA(); + } } } |