1 files changed, 75 insertions, 0 deletions
diff --git a/src/shaders/SkLocalMatrixShader.h b/src/shaders/SkLocalMatrixShader.h
new file mode 100644
index 0000000000..4572e9fe2e
--- /dev/null
+++ b/src/shaders/SkLocalMatrixShader.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2014 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkLocalMatrixShader_DEFINED
+#define SkLocalMatrixShader_DEFINED
+
+#include "SkShaderBase.h"
+#include "SkReadBuffer.h"
+#include "SkWriteBuffer.h"
+
+class GrFragmentProcessor;
+class SkArenaAlloc;
+class SkColorSpaceXformer;
+
+class SkLocalMatrixShader : public SkShaderBase {
+public:
+    SkLocalMatrixShader(sk_sp<SkShader> proxy, const SkMatrix& localMatrix)
+    : INHERITED(&localMatrix)
+    , fProxyShader(std::move(proxy))
+    {}
+
+    GradientType asAGradient(GradientInfo* info) const override {
+        return fProxyShader->asAGradient(info);
+    }
+
+#if SK_SUPPORT_GPU
+    sk_sp<GrFragmentProcessor> asFragmentProcessor(const AsFPArgs&) const override;
+#endif
+
+    sk_sp<SkShader> makeAsALocalMatrixShader(SkMatrix* localMatrix) const override {
+        if (localMatrix) {
+            *localMatrix = this->getLocalMatrix();
+        }
+        return fProxyShader;
+    }
+
+    SK_TO_STRING_OVERRIDE()
+    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkLocalMatrixShader)
+
+protected:
+    void flatten(SkWriteBuffer&) const override;
+
+    Context* onMakeContext(const ContextRec&, SkArenaAlloc*) const override;
+
+    SkImage* onIsAImage(SkMatrix* matrix, TileMode* mode) const override;
+
+    bool onAppendStages(SkRasterPipeline*, SkColorSpace*, SkArenaAlloc*,
+                        const SkMatrix&, const SkPaint&, const SkMatrix*) const override;
+
+    sk_sp<SkShader> onMakeColorSpace(SkColorSpaceXformer* xformer) const override {
+        return as_SB(fProxyShader)->makeColorSpace(xformer)->makeWithLocalMatrix(
+            this->getLocalMatrix());
+    }
+
+#ifdef SK_SUPPORT_LEGACY_SHADER_ISABITMAP
+    bool onIsABitmap(SkBitmap* bitmap, SkMatrix* matrix, TileMode* mode) const override {
+        return fProxyShader->isABitmap(bitmap, matrix, mode);
+    }
+#endif
+
+    bool isRasterPipelineOnly() const final {
+        return as_SB(fProxyShader)->isRasterPipelineOnly();
+    }
+
+private:
+    sk_sp<SkShader> fProxyShader;
+
+    typedef SkShaderBase INHERITED;
+};
+
+#endif