commit 5df94d508ecfb62d54b757961dba611a00ff563c
author Mike Klein <mtklein@chromium.org> Thu Jun 01 14:43:51 2017 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Thu Jun 01 19:23:10 2017 +0000
tree 3c1d188883c341bc22f712ed5e1508fb52e85224
parent e0f7e164eed88912ee708de57da25ad05933366f

have shaders that need seed_shader call it themselves

This ought to make compose shader and our sprite blitter a bit more
efficient.  Compose shader can simply re-seed instead of saving the
xy values off to a buffer.  The sprite blitter doesn't need xy at all.

Change-Id: Ib4b3509288810f74a4c8e2978ce2ca14d8644980
Reviewed-on: https://skia-review.googlesource.com/18405
Reviewed-by: Herb Derby <herb@google.com>
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Klein <mtklein@chromium.org>

src/shaders/gradients/SkGradientShader.cpp

diff --git a/src/shaders/gradients/SkGradientShader.cpp b/src/shaders/gradients/SkGradientShader.cpp
index 137da84..d98c8c6 100644
--- a/src/shaders/gradients/SkGradientShader.cpp
+++ b/src/shaders/gradients/SkGradientShader.cpp
@@ -422,6 +422,8 @@
         return false;
     }
 
+    p->append(SkRasterPipeline::seed_shader);
+
     auto* m = alloc->makeArrayDefault<float>(9);
     if (matrix.asAffine(m)) {
         p->append(SkRasterPipeline::matrix_2x3, m);