1 files changed, 0 insertions, 85 deletions
diff --git a/src/gpu/effects/GrDitherEffect.fp b/src/gpu/effects/GrDitherEffect.fp
deleted file mode 100644
index ed6c0e6b70..0000000000
--- a/src/gpu/effects/GrDitherEffect.fp
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * Copyright 2018 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-// This controls the range of values added to color channels
-layout(key) in int rangeType;
-
-@make {
-    static std::unique_ptr<GrFragmentProcessor> Make(GrPixelConfig dstConfig) {
-        int rangeType;
-        switch (dstConfig) {
-            case kGray_8_GrPixelConfig:
-            case kGray_8_as_Lum_GrPixelConfig:
-            case kGray_8_as_Red_GrPixelConfig:
-            case kRGBA_8888_GrPixelConfig:
-            case kRGB_888_GrPixelConfig:
-            case kBGRA_8888_GrPixelConfig:
-                rangeType = 0;
-                break;
-            case kRGB_565_GrPixelConfig:
-                rangeType = 1;
-                break;
-            case kRGBA_4444_GrPixelConfig:
-                rangeType = 2;
-                break;
-            case kUnknown_GrPixelConfig:
-            case kSRGBA_8888_GrPixelConfig:
-            case kSBGRA_8888_GrPixelConfig:
-            case kRGBA_1010102_GrPixelConfig:
-            case kAlpha_half_GrPixelConfig:
-            case kAlpha_half_as_Red_GrPixelConfig:
-            case kRGBA_float_GrPixelConfig:
-            case kRG_float_GrPixelConfig:
-            case kRGBA_half_GrPixelConfig:
-            case kAlpha_8_GrPixelConfig:
-            case kAlpha_8_as_Alpha_GrPixelConfig:
-            case kAlpha_8_as_Red_GrPixelConfig:
-                return nullptr;
-        }
-        return std::unique_ptr<GrFragmentProcessor>(new GrDitherEffect(rangeType));
-    }
-}
-
-void main() {
-    half value;
-    half range;
-    @switch (rangeType) {
-        case 0:
-            range = 1.0 / 255.0;
-            break;
-        case 1:
-            range = 1.0 / 63.0;
-            break;
-        default:
-            // Experimentally this looks better than the expected value of 1/15.
-            range = 1.0 / 15.0;
-            break;
-    }
-    @if (sk_Caps.integerSupport) {
-        // This ordered-dither code is lifted from the cpu backend.
-        uint x = uint(sk_FragCoord.x);
-        uint y = uint(sk_FragCoord.y);
-        uint m = (y & 1) << 5 | (x & 1) << 4 |
-                 (y & 2) << 2 | (x & 2) << 1 |
-                 (y & 4) >> 1 | (x & 4) >> 2;
-        value = half(m) * 1.0 / 64.0 - 63.0 / 128.0;
-    } else {
-        // Simulate the integer effect used above using step/mod. For speed, simulates a 4x4
-        // dither pattern rather than an 8x8 one.
-        half4 modValues = mod(sk_FragCoord.xyxy, half4(2.0, 2.0, 4.0, 4.0));
-        half4 stepValues = step(modValues, half4(1.0, 1.0, 2.0, 2.0));
-        value = dot(stepValues, half4(8.0 / 16.0, 4.0 / 16.0, 2.0 / 16.0, 1.0 / 16.0)) - 15.0 / 32.0;
-    }
-    // For each color channel, add the random offset to the channel value and then clamp
-    // between 0 and alpha to keep the color premultiplied.
-    sk_OutColor = half4(clamp(sk_InColor.rgb + value * range, 0, sk_InColor.a), sk_InColor.a);
-}
-
-@test(testData) {
-    float range = testData->fRandom->nextRangeF(0.001f, 0.05f);
-    return std::unique_ptr<GrFragmentProcessor>(new GrDitherEffect(range));
-}