remove RP bench

Originally I wanted to get it away from using from_srgb/to_srgb
directly, but in the end I just don't care about any of it.

Change-Id: I7ed39a92840f02c98bfe97203bef64057ee0413e
Reviewed-on: https://skia-review.googlesource.com/c/165440
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
diff --git a/bench/SkRasterPipelineBench.cpp b/bench/SkRasterPipelineBench.cpp
deleted file mode 100644
index 67b9007..0000000
--- a/bench/SkRasterPipelineBench.cpp
+++ /dev/null
@@ -1,165 +0,0 @@
-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "Benchmark.h"
-#include "SkOpts.h"
-#include "SkRasterPipeline.h"
-
-static const int N = 15;
-
-static uint64_t dst[N];  // sRGB or F16
-static uint32_t src[N];  // sRGB
-static uint8_t mask[N];  // 8-bit linear
-
-// We'll build up a somewhat realistic useful pipeline:
-//   - load srgb src
-//   - scale src by 8-bit mask
-//   - load srgb/f16 dst
-//   - src = srcover(dst, src)
-//   - store src back as srgb/f16
-
-template <bool kF16>
-class SkRasterPipelineBench : public Benchmark {
-public:
-    bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; }
-    const char* onGetName() override {
-        switch ((int)kF16) {
-            case 0: return "SkRasterPipeline_srgb";
-            case 1: return "SkRasterPipeline_f16";
-        }
-        return "whoops";
-    }
-
-    void onDraw(int loops, SkCanvas*) override {
-        SkRasterPipeline_MemoryCtx mask_ctx = {mask, 0},
-                                   src_ctx = {src,  0},
-                                   dst_ctx = {dst,  0};
-
-        SkRasterPipeline_<256> p;
-        p.append(SkRasterPipeline::load_8888, &src_ctx);
-        p.append(SkRasterPipeline::from_srgb);
-        p.append(SkRasterPipeline::scale_u8, &mask_ctx);
-        p.append(SkRasterPipeline::move_src_dst);
-        if (kF16) {
-            p.append(SkRasterPipeline::load_f16, &dst_ctx);
-        } else {
-            p.append(SkRasterPipeline::load_8888, &dst_ctx);
-            p.append(SkRasterPipeline::from_srgb);
-        }
-        p.append(SkRasterPipeline::dstover);
-        if (kF16) {
-            p.append(SkRasterPipeline::store_f16, &dst_ctx);
-        } else {
-            p.append(SkRasterPipeline::to_srgb);
-            p.append(SkRasterPipeline::store_8888, &dst_ctx);
-        }
-
-        while (loops --> 0) {
-            p.run(0,0,N,1);
-        }
-    }
-};
-DEF_BENCH( return (new SkRasterPipelineBench< true>); )
-DEF_BENCH( return (new SkRasterPipelineBench<false>); )
-
-class SkRasterPipelineCompileVsRunBench : public Benchmark {
-public:
-    explicit SkRasterPipelineCompileVsRunBench(bool compile) : fCompile(compile) {}
-    bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; }
-    const char* onGetName() override {
-        return fCompile ? "SkRasterPipeline_compile"
-                        : "SkRasterPipeline_run";
-    }
-
-    void onDraw(int loops, SkCanvas*) override {
-        SkRasterPipeline_MemoryCtx src_ctx = {src, 0},
-                                   dst_ctx = {dst, 0};
-
-        SkRasterPipeline_<256> p;
-        p.append(SkRasterPipeline::load_8888, &dst_ctx);
-        p.append(SkRasterPipeline::move_src_dst);
-        p.append(SkRasterPipeline::load_8888, &src_ctx);
-        p.append(SkRasterPipeline::srcover);
-        p.append(SkRasterPipeline::store_8888, &dst_ctx);
-
-        if (fCompile) {
-            auto fn = p.compile();
-            while (loops --> 0) {
-                fn(0,0,N,1);
-            }
-        } else {
-            while (loops --> 0) {
-                p.run(0,0,N,1);
-            }
-        }
-    }
-private:
-    bool fCompile;
-};
-DEF_BENCH( return (new SkRasterPipelineCompileVsRunBench(true )); )
-DEF_BENCH( return (new SkRasterPipelineCompileVsRunBench(false)); )
-
-static SkColorSpaceTransferFn gamma(float g) {
-    SkColorSpaceTransferFn fn = {0,0,0,0,0,0,0};
-    fn.fG = g;
-    fn.fA = 1;
-    return fn;
-}
-
-class SkRasterPipeline_2dot2 : public Benchmark {
-public:
-    SkRasterPipeline_2dot2(bool parametric) : fParametric(parametric) {}
-
-    bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; }
-    const char* onGetName() override {
-        return fParametric ? "SkRasterPipeline_2dot2_parametric"
-                           : "SkRasterPipeline_2dot2_gamma";
-    }
-
-    void onDraw(int loops, SkCanvas*) override {
-        SkColor4f c = { 1.0f, 1.0f, 1.0f, 1.0f };
-
-        SkColorSpaceTransferFn from_2dot2 = gamma(  2.2f),
-                                 to_2dot2 = gamma(1/2.2f);
-        SkSTArenaAlloc<256> alloc;
-        SkRasterPipeline p(&alloc);
-        p.append_constant_color(&alloc, c);
-        if (fParametric) {
-            p.append(SkRasterPipeline::parametric, &from_2dot2);
-            p.append(SkRasterPipeline::parametric, &  to_2dot2);
-        } else {
-            p.append(SkRasterPipeline::gamma, &from_2dot2.fG);
-            p.append(SkRasterPipeline::gamma, &  to_2dot2.fG);
-        }
-
-        while (loops --> 0) {
-            p.run(0,0,N,1);
-        }
-    }
-private:
-    bool fParametric;
-};
-DEF_BENCH( return (new SkRasterPipeline_2dot2( true)); )
-DEF_BENCH( return (new SkRasterPipeline_2dot2(false)); )
-
-class SkRasterPipelineToSRGB : public Benchmark {
-public:
-    bool isSuitableFor(Backend backend) override { return backend == kNonRendering_Backend; }
-    const char* onGetName() override {
-        return "SkRasterPipeline_to_srgb";
-    }
-
-    void onDraw(int loops, SkCanvas*) override {
-        SkRasterPipeline_<256> p;
-        p.append(SkRasterPipeline::to_srgb);
-
-        while (loops --> 0) {
-            p.run(0,0,N,1);
-        }
-    }
-};
-DEF_BENCH( return (new SkRasterPipelineToSRGB); )
diff --git a/gn/bench.gni b/gn/bench.gni
index 6db8772..2457162 100644
--- a/gn/bench.gni
+++ b/gn/bench.gni
@@ -112,7 +112,6 @@
   "$_bench/SkGlyphCacheBench.cpp",
   "$_bench/SKPAnimationBench.cpp",
   "$_bench/SKPBench.cpp",
-  "$_bench/SkRasterPipelineBench.cpp",
   "$_bench/StreamBench.cpp",
   "$_bench/SortBench.cpp",
   "$_bench/StrokeBench.cpp",