commit e6befa5ac8e00400a7baa1813d323cdb834a22e5
author Mike Reed <reed@google.com> Mon Aug 28 11:30:48 2017 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Mon Aug 28 15:56:06 2017 +0000
tree 0d83878158c080a458b8cfe01140cd728aee8431
parent c172f9b894455f2d262a5b1edf067764d70b1b62

add 'a8' config for nanobench, specialize blitV for raster-pipeline

Motivated by wanting to speed-up A8 blits in general (and at the moment, aarect blits). More to come in these areas.

Bug: skia:
Change-Id: I45e8ef951b8e89a825af72b1918049be10920137
Reviewed-on: https://skia-review.googlesource.com/39401
Reviewed-by: Yuqian Li <liyuqian@google.com>
Commit-Queue: Mike Reed <reed@google.com>

src/core/SkRasterPipelineBlitter.cpp

diff --git a/src/core/SkRasterPipelineBlitter.cpp b/src/core/SkRasterPipelineBlitter.cpp
index 4c484a0..863fb92 100644
--- a/src/core/SkRasterPipelineBlitter.cpp
+++ b/src/core/SkRasterPipelineBlitter.cpp
@@ -44,6 +44,7 @@
     void blitAntiH2(int x, int y, U8CPU a0, U8CPU a1)               override;
     void blitMask  (const SkMask&, const SkIRect& clip)             override;
     void blitRect  (int x, int y, int width, int height)            override;
+    void blitV     (int x, int y, int height, SkAlpha alpha)        override;
 
     // TODO: The default implementations of the other blits look fine,
     // but some of them like blitV could probably benefit from custom
@@ -389,6 +390,18 @@
     this->blitMask(mask, clip);
 }
 
+void SkRasterPipelineBlitter::blitV(int x, int y, int height, SkAlpha alpha) {
+    SkIRect clip = {x,y, x+1,y+height};
+
+    SkMask mask;
+    mask.fImage    = α
+    mask.fBounds   = clip;
+    mask.fRowBytes = 0;     // so we reuse the 1 "row" for all of height
+    mask.fFormat   = SkMask::kA8_Format;
+
+    this->blitMask(mask, clip);
+}
+
 void SkRasterPipelineBlitter::blitMask(const SkMask& mask, const SkIRect& clip) {
     if (mask.fFormat == SkMask::kBW_Format) {
         // TODO: native BW masks?