Revert of Support Float32 output from SkColorSpaceXform

gm/colorspacexform.cpp

-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include "gm.h"
-#include "SkColor.h"
-#include "SkColorSpaceXform.h"
-#include "SkRect.h"
-
-class ColorSpaceXformGM : public skiagm::GM {
-public:
-    ColorSpaceXformGM() {}
-
-protected:
-    void onOnceBeforeDraw() override {
-        SkColor colors[] = {
-            SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorMAGENTA, SK_ColorCYAN, SK_ColorYELLOW,
-            SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE, SK_ColorMAGENTA,
-        };
-        static_assert(kNumColors == SK_ARRAY_COUNT(colors), "Fix number of colors.");
-
-        for (int i = 0; i < kNumColors; i++) {
-            fSRGBColors[i] = SkColor4f::FromColor(colors[i]);
-
-            // FIXME (msarett): SkColorSpaceXform does not support BGRA.
-            colors[i] = SkSwizzle_RB(colors[i]);
-        }
-
-        static constexpr float kWideGamutRGB_toXYZD50[]{
-            0.7161046f, 0.1009296f, 0.1471858f,
-            0.2581874f, 0.7249378f, 0.0168748f,
-            0.0000000f, 0.0517813f, 0.7734287f,
-        };
-
-        SkMatrix44 wideGamut(SkMatrix44::kUninitialized_Constructor);
-        wideGamut.set3x3RowMajorf(kWideGamutRGB_toXYZD50);
-        std::unique_ptr<SkColorSpaceXform> xform = SkColorSpaceXform::New(
-                SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named),
-                SkColorSpace::NewRGB(SkColorSpace::kLinear_RenderTargetGamma, wideGamut));
-
-        xform->apply(fWideGamutColors, colors, kNumColors,
-                     SkColorSpaceXform::kRGBA_F32_ColorFormat, kOpaque_SkAlphaType);
-    }
-
-    SkString onShortName() override {
-        return SkString("colorspacexform");
-    }
-
-    SkISize onISize() override {
-        return SkISize::Make(500, 200);
-    }
-
-    void onDraw(SkCanvas* canvas) override {
-        auto drawColors = [canvas](SkColor4f* colors) {
-            SkRect r = SkRect::MakeXYWH(0.0f, 0.0f, 50.0f, 100.0f);
-
-            canvas->save();
-            for (int i = 0; i < kNumColors; i++) {
-                sk_sp<SkColorSpace> space =
-                        SkColorSpace::NewNamed(SkColorSpace::kSRGB_Named)->makeLinearGamma();
-                sk_sp<SkShader> s = SkShader::MakeColorShader(colors[i], space);
-                SkPaint paint;
-                paint.setShader(s);
-                canvas->drawRect(r, paint);
-                canvas->translate(50.0f, 0.0f);
-            }
-            canvas->restore();
-        };
-
-        // Wide gamut colors should appear darker - we are simulating a more intense display.
-        drawColors(fSRGBColors);
-        canvas->translate(0.0f, 100.0f);
-        drawColors(fWideGamutColors);
-    }
-
-private:
-    static constexpr int kNumColors = 10;
-
-    SkColor4f fSRGBColors[kNumColors];
-    SkColor4f fWideGamutColors[kNumColors];
-
-    typedef skiagm::GM INHERITED;
-};
-
-DEF_GM(return new ColorSpaceXformGM;)