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authorGravatar Mike Klein <mtklein@chromium.org>2017-09-15 14:57:02 -0400
committerGravatar Skia Commit-Bot <skia-commit-bot@chromium.org>2017-09-16 02:25:23 +0000
commitf757ae6aa74df9028ec1c9e14fed2b710c32ac23 (patch)
treec9e97b7f90472993402c07c463e1ba583a9a5710 /src/core
parent98c5d92ee60f6d395f9591891922aa9852a497ee (diff)
Retry, Bump stored lowp uniform color to 16-bit storage.
This makes loading into 16-bit channels more natural in _lowp.cpp. Update a unit test to stop using out-of-range "colors". Change-Id: I494687aac87948b60a40de447aa1527cf7167b2d Cq-Include-Trybots: skia.primary:Test-Debian9-Clang-GCE-CPU-AVX2-x86_64-Release-UBSAN_float_cast_overflow Reviewed-on: https://skia-review.googlesource.com/47580 Reviewed-by: Mike Klein <mtklein@chromium.org> Commit-Queue: Mike Klein <mtklein@chromium.org>
Diffstat (limited to 'src/core')
-rw-r--r--src/core/SkRasterPipeline.cpp13
1 files changed, 12 insertions, 1 deletions
diff --git a/src/core/SkRasterPipeline.cpp b/src/core/SkRasterPipeline.cpp
index a8c4c0de73..0e56fc4810 100644
--- a/src/core/SkRasterPipeline.cpp
+++ b/src/core/SkRasterPipeline.cpp
@@ -82,6 +82,11 @@ void SkRasterPipeline::dump() const {
#endif
void SkRasterPipeline::append_constant_color(SkArenaAlloc* alloc, const float rgba[4]) {
+ SkASSERT(0 <= rgba[0] && rgba[0] <= 1);
+ SkASSERT(0 <= rgba[1] && rgba[1] <= 1);
+ SkASSERT(0 <= rgba[2] && rgba[2] <= 1);
+ SkASSERT(0 <= rgba[3] && rgba[3] <= 1);
+
if (rgba[0] == 0 && rgba[1] == 0 && rgba[2] == 0 && rgba[3] == 1) {
this->append(black_color);
INC_BLACK;
@@ -92,7 +97,13 @@ void SkRasterPipeline::append_constant_color(SkArenaAlloc* alloc, const float rg
auto ctx = alloc->make<SkJumper_UniformColorCtx>();
Sk4f color = Sk4f::Load(rgba);
color.store(&ctx->r);
- ctx->rgba = Sk4f_toL32(color);
+
+ // To make loads more direct, we store 8-bit values in 16-bit slots.
+ color = color * 255.0f + 0.5f;
+ ctx->rgba[0] = (uint16_t)color[0];
+ ctx->rgba[1] = (uint16_t)color[1];
+ ctx->rgba[2] = (uint16_t)color[2];
+ ctx->rgba[3] = (uint16_t)color[3];
this->unchecked_append(uniform_color, ctx);
INC_COLOR;