Add dest type hint to SkShader::ContextRec

Let SkBlitter decide which dst type is optimal (PMColor vs PM4f), and
pass that info to shaders.

R=reed@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1724503002

Review URL: https://codereview.chromium.org/1724503002

1 files changed, 2 insertions, 1 deletions

diff --git a/bench/SkLinearBitmapPipelineBench.cpp b/bench/SkLinearBitmapPipelineBench.cpp
index 8a4ba2cef9..8c44fa8511 100644
--- a/bench/SkLinearBitmapPipelineBench.cpp
+++ b/bench/SkLinearBitmapPipelineBench.cpp
@@ -196,7 +196,8 @@ struct SkBitmapFPOrigShader : public CommonBitmapFPBenchmark {
         SkAutoTMalloc<SkPMColor> buffer4b(width*height);
 
         uint32_t storage[200];
-        const SkShader::ContextRec rec(fPaint, fM, nullptr);
+        const SkShader::ContextRec rec(fPaint, fM, nullptr,
+                                       SkShader::ContextRec::kPMColor_DstType);
         SkASSERT(fPaint.getShader()->contextSize(rec) <= sizeof(storage));
         SkShader::Context* ctx = fPaint.getShader()->createContext(rec, storage);