delete (unused) TransparentShader

src/effects/SkTransparentShader.cpp

Index: src/effects/SkTransparentShader.cpp
diff --git a/src/effects/SkTransparentShader.cpp b/src/effects/SkTransparentShader.cpp
deleted file mode 100644
index aab5a3d85c78fb7185fbb4bda42452857d04fe94..0000000000000000000000000000000000000000
--- a/src/effects/SkTransparentShader.cpp
+++ /dev/null
@@ -1,130 +0,0 @@
-
-/*
- * Copyright 2006 The Android Open Source Project
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-
-#include "SkTransparentShader.h"
-#include "SkColorPriv.h"
-#include "SkString.h"
-
-SkShader::Context* SkTransparentShader::onCreateContext(const ContextRec& rec,
-                                                        void* storage) const {
-    return SkNEW_PLACEMENT_ARGS(storage, TransparentShaderContext, (*this, rec));
-}
-
-size_t SkTransparentShader::contextSize() const {
-    return sizeof(TransparentShaderContext);
-}
-
-SkTransparentShader::TransparentShaderContext::TransparentShaderContext(
-        const SkTransparentShader& shader, const ContextRec& rec)
-    : INHERITED(shader, rec)
-    , fDevice(rec.fDevice) {}
-
-SkTransparentShader::TransparentShaderContext::~TransparentShaderContext() {}
-
-uint32_t SkTransparentShader::TransparentShaderContext::getFlags() const {
-    uint32_t flags = this->INHERITED::getFlags();
-
-    switch (fDevice->colorType()) {
-        case kRGB_565_SkColorType:
-            flags |= kHasSpan16_Flag;
-            if (this->getPaintAlpha() == 255)
-                flags |= kOpaqueAlpha_Flag;
-            break;
-        case kN32_SkColorType:
-            if (this->getPaintAlpha() == 255 && fDevice->isOpaque())
-                flags |= kOpaqueAlpha_Flag;
-            break;
-        default:
-            break;
-    }
-    return flags;
-}
-
-void SkTransparentShader::TransparentShaderContext::shadeSpan(int x, int y, SkPMColor span[],
-                                                              int count) {
-    unsigned scale = SkAlpha255To256(this->getPaintAlpha());
-
-    switch (fDevice->colorType()) {
-        case kN32_SkColorType:
-            if (scale == 256) {
-                SkPMColor* src = fDevice->getAddr32(x, y);
-                if (src != span) {
-                    memcpy(span, src, count * sizeof(SkPMColor));
-                }
-            } else {
-                const SkPMColor* src = fDevice->getAddr32(x, y);
-                for (int i = count - 1; i >= 0; --i) {
-                    span[i] = SkAlphaMulQ(src[i], scale);
-                }
-            }
-            break;
-        case kRGB_565_SkColorType: {
-            const uint16_t* src = fDevice->getAddr16(x, y);
-            if (scale == 256) {
-                for (int i = count - 1; i >= 0; --i) {
-                    span[i] = SkPixel16ToPixel32(src[i]);
-                }
-            } else {
-                unsigned alpha = this->getPaintAlpha();
-                for (int i = count - 1; i >= 0; --i) {
-                    uint16_t c = src[i];
-                    unsigned r = SkPacked16ToR32(c);
-                    unsigned g = SkPacked16ToG32(c);
-                    unsigned b = SkPacked16ToB32(c);
-
-                    span[i] = SkPackARGB32( alpha,
-                                            SkAlphaMul(r, scale),
-                                            SkAlphaMul(g, scale),
-                                            SkAlphaMul(b, scale));
-                }
-            }
-            break;
-        }
-        case kAlpha_8_SkColorType: {
-            const uint8_t* src = fDevice->getAddr8(x, y);
-            if (scale == 256) {
-                for (int i = count - 1; i >= 0; --i) {
-                    span[i] = SkPackARGB32(src[i], 0, 0, 0);
-                }
-            } else {
-                for (int i = count - 1; i >= 0; --i) {
-                    span[i] = SkPackARGB32(SkAlphaMul(src[i], scale), 0, 0, 0);
-                }
-            }
-            break;
-        }
-        default:
-            SkDEBUGFAIL("colorType not supported as a destination device");
-            break;
-    }
-}
-
-void SkTransparentShader::TransparentShaderContext::shadeSpan16(int x, int y, uint16_t span[],
-                                                                int count) {
-    SkASSERT(fDevice->colorType() == kRGB_565_SkColorType);
-
-    uint16_t* src = fDevice->getAddr16(x, y);
-    if (src != span) {
-        memcpy(span, src, count << 1);
-    }
-}
-
-SkFlattenable* SkTransparentShader::CreateProc(SkReadBuffer& buffer) {
-    return SkNEW(SkTransparentShader);
-}
-
-#ifndef SK_IGNORE_TO_STRING
-void SkTransparentShader::toString(SkString* str) const {
-    str->append("SkTransparentShader: (");
-
-    this->INHERITED::toString(str);
-
-    str->append(")");
-}
-#endif