collapse parametric_{r,g,b} into parametric, remove _a and gamma_dst

parametric_a and gamma_dst were unused outside of unit tests.

In all other cases, we always use parametric_{r,g,b} together
and always pass them the same argument.  So we can collapse
them into a single stage like gamma and to/from_srgb.

Change-Id: I08cea896c7744f97b4f4bf9e029f5d643e45e177
Reviewed-on: https://skia-review.googlesource.com/140576
Commit-Queue: Mike Klein <mtklein@chromium.org>
Reviewed-by: Brian Osman <brianosman@google.com>

1 files changed, 2 insertions, 6 deletions

diff --git a/src/core/SkConvertPixels.cpp b/src/core/SkConvertPixels.cpp
index 25645d485c..0434b92c2e 100644
--- a/src/core/SkConvertPixels.cpp
+++ b/src/core/SkConvertPixels.cpp
@@ -308,9 +308,7 @@ static void convert_with_pipeline(const SkImageInfo& dstInfo, void* dstRow, size
         if (is_just_gamma(srcFn)) {
             pipeline.append(SkRasterPipeline::gamma, &srcFn.fG);
         } else {
-            pipeline.append(SkRasterPipeline::parametric_r, &srcFn);
-            pipeline.append(SkRasterPipeline::parametric_g, &srcFn);
-            pipeline.append(SkRasterPipeline::parametric_b, &srcFn);
+            pipeline.append(SkRasterPipeline::parametric, &srcFn);
         }
     }
 
@@ -340,9 +338,7 @@ static void convert_with_pipeline(const SkImageInfo& dstInfo, void* dstRow, size
         if (is_just_gamma(dstFn)) {
             pipeline.append(SkRasterPipeline::gamma, &dstFn.fG);
         } else {
-            pipeline.append(SkRasterPipeline::parametric_r, &dstFn);
-            pipeline.append(SkRasterPipeline::parametric_g, &dstFn);
-            pipeline.append(SkRasterPipeline::parametric_b, &dstFn);
+            pipeline.append(SkRasterPipeline::parametric, &dstFn);
         }
     }