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Unified Diff: src/gpu/effects/GrGammaEffect.h

Issue 1919993002: Added --deepColor option to SampleApp, triggers creation of a ten-bit/channel buffer on Windows. (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: Rebase Created 4 years, 7 months ago
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Index: src/gpu/effects/GrGammaEffect.h
diff --git a/src/gpu/effects/GrGammaEffect.h b/src/gpu/effects/GrGammaEffect.h
new file mode 100644
index 0000000000000000000000000000000000000000..44d6d6707cb1f14a862764b59845b00b416e7200
--- /dev/null
+++ b/src/gpu/effects/GrGammaEffect.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrGammaEffect_DEFINED
+#define GrGammaEffect_DEFINED
+
+#include "GrSingleTextureEffect.h"
+
+class GrGammaEffect : public GrSingleTextureEffect {
+public:
+ /**
+ * Creates an effect that applies a gamma curve. The source texture is always
+ * sampled unfiltered and with clamping.
+ */
+ static const GrFragmentProcessor* Create(GrTexture*, SkScalar gamma);
+
+ const char* name() const override { return "Gamma"; }
+
+ bool gammaIsSRGB() const { return fGammaIsSRGB; }
+ SkScalar gamma() const { return fGamma; }
+
+private:
+ GrGammaEffect(GrTexture*, SkScalar gamma);
+
+ GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
+ void onGetGLSLProcessorKey(const GrGLSLCaps&, GrProcessorKeyBuilder*) const override;
+ bool onIsEqual(const GrFragmentProcessor&) const override;
+ void onComputeInvariantOutput(GrInvariantOutput* inout) const override;
+
+ bool fGammaIsSRGB;
+ SkScalar fGamma;
+
+ GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
+
+ typedef GrSingleTextureEffect INHERITED;
+};
+
+#endif
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