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-rw-r--r--skia/include/SkUnPreMultiply.h63
1 files changed, 0 insertions, 63 deletions
diff --git a/skia/include/SkUnPreMultiply.h b/skia/include/SkUnPreMultiply.h
deleted file mode 100644
index 4bdb980..0000000
--- a/skia/include/SkUnPreMultiply.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * Copyright (C) 2008 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-
-
-
-#ifndef SkUnPreMultiply_DEFINED
-#define SkUnPreMultiply_DEFINED
-
-#include "SkColor.h"
-
-class SkUnPreMultiply {
-public:
- typedef uint32_t Scale;
-
- // index this table with alpha [0..255]
- static const Scale* GetScaleTable() {
- return gTable;
- }
-
- static Scale GetScale(U8CPU alpha) {
- SkASSERT(alpha <= 255);
- return gTable[alpha];
- }
-
- /** Usage:
-
- const Scale* table = SkUnPreMultiply::GetScaleTable();
-
- for (...) {
- unsigned a = ...
- SkUnPreMultiply::Scale scale = table[a];
-
- red = SkUnPreMultiply::ApplyScale(scale, red);
- ...
- // now red is unpremultiplied
- }
- */
- static U8CPU ApplyScale(Scale scale, U8CPU component) {
- SkASSERT(component <= 255);
- return (scale * component + (1 << 23)) >> 24;
- }
-
- static SkColor PMColorToColor(SkPMColor c);
-
-private:
- static const uint32_t gTable[256];
-};
-
-#endif