grab from latest android

git-svn-id: http://skia.googlecode.com/svn/trunk@27 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 116 insertions, 0 deletions

diff --git a/src/core/SkBitmapSamplerTemplate.h b/src/core/SkBitmapSamplerTemplate.h
new file mode 100644
index 0000000000..00df10ce32
--- /dev/null
+++ b/src/core/SkBitmapSamplerTemplate.h
@@ -0,0 +1,116 @@
+/* libs/graphics/sgl/SkBitmapSamplerTemplate.h
+**
+** Copyright 2006, 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.
+*/
+
+/*  this guy is pulled in multiple times, with the following symbols defined each time:
+
+    #define BITMAP_CLASSNAME_PREFIX(name)           ARGB32##name
+    #defube BITMAP_PIXEL_TO_PMCOLOR(bitmap, x, y)   *bitmap.getAddr32(x, y)
+*/
+
+class BITMAP_CLASSNAME_PREFIX(_Point_Sampler) : public SkBitmapSampler {
+public:
+    BITMAP_CLASSNAME_PREFIX(_Point_Sampler)(const SkBitmap& bm, SkShader::TileMode tmx, SkShader::TileMode tmy)
+        : SkBitmapSampler(bm, false, tmx, tmy)
+    {
+    }
+
+    virtual SkPMColor sample(SkFixed x, SkFixed y) const
+    {
+        x = fTileProcX(SkFixedFloor(x), fMaxX);
+        y = fTileProcY(SkFixedFloor(y), fMaxY);
+        return BITMAP_PIXEL_TO_PMCOLOR(fBitmap, x, y);
+    }
+};
+
+
+class BITMAP_CLASSNAME_PREFIX(_Point_Clamp_Sampler) : public SkBitmapSampler {
+public:
+    BITMAP_CLASSNAME_PREFIX(_Point_Clamp_Sampler)(const SkBitmap& bm)
+        : SkBitmapSampler(bm, false, SkShader::kClamp_TileMode, SkShader::kClamp_TileMode)
+    {
+    }
+
+    virtual SkPMColor sample(SkFixed x, SkFixed y) const
+    {
+        x = do_clamp(SkFixedFloor(x), fMaxX);
+        y = do_clamp(SkFixedFloor(y), fMaxY);
+        return BITMAP_PIXEL_TO_PMCOLOR(fBitmap, x, y);
+    }
+};
+
+class BITMAP_CLASSNAME_PREFIX(_Point_Repeat_Pow2_Sampler) : public SkBitmapSampler {
+public:
+    BITMAP_CLASSNAME_PREFIX(_Point_Repeat_Pow2_Sampler)(const SkBitmap& bm)
+        : SkBitmapSampler(bm, false, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode)
+    {
+    }
+
+    virtual SkPMColor sample(SkFixed x, SkFixed y) const
+    {
+        x = do_repeat_pow2(SkFixedFloor(x), fMaxX);
+        y = do_repeat_pow2(SkFixedFloor(y), fMaxY);
+        return BITMAP_PIXEL_TO_PMCOLOR(fBitmap, x, y);
+    }
+};
+
+class BITMAP_CLASSNAME_PREFIX(_Point_Repeat_Mod_Sampler) : public SkBitmapSampler {
+public:
+    BITMAP_CLASSNAME_PREFIX(_Point_Repeat_Mod_Sampler)(const SkBitmap& bm)
+        : SkBitmapSampler(bm, false, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode)
+    {
+    }
+
+    virtual SkPMColor sample(SkFixed x, SkFixed y) const
+    {
+        x = do_repeat_mod(SkFixedFloor(x), fMaxX);
+        y = do_repeat_mod(SkFixedFloor(y), fMaxY);
+        return BITMAP_PIXEL_TO_PMCOLOR(fBitmap, x, y);
+    }
+};
+
+class BITMAP_CLASSNAME_PREFIX(_Point_Mirror_Pow2_Sampler) : public SkBitmapSampler {
+public:
+    BITMAP_CLASSNAME_PREFIX(_Point_Mirror_Pow2_Sampler)(const SkBitmap& bm)
+        : SkBitmapSampler(bm, false, SkShader::kMirror_TileMode, SkShader::kMirror_TileMode)
+    {
+    }
+
+    virtual SkPMColor sample(SkFixed x, SkFixed y) const
+    {
+        x = do_mirror_pow2(SkFixedFloor(x), fMaxX);
+        y = do_mirror_pow2(SkFixedFloor(y), fMaxY);
+        return BITMAP_PIXEL_TO_PMCOLOR(fBitmap, x, y);
+    }
+};
+
+class BITMAP_CLASSNAME_PREFIX(_Point_Mirror_Mod_Sampler) : public SkBitmapSampler {
+public:
+    BITMAP_CLASSNAME_PREFIX(_Point_Mirror_Mod_Sampler)(const SkBitmap& bm)
+        : SkBitmapSampler(bm, false, SkShader::kMirror_TileMode, SkShader::kMirror_TileMode)
+    {
+    }
+
+    virtual SkPMColor sample(SkFixed x, SkFixed y) const
+    {
+        x = do_mirror_mod(SkFixedFloor(x), fMaxX);
+        y = do_mirror_mod(SkFixedFloor(y), fMaxY);
+        return BITMAP_PIXEL_TO_PMCOLOR(fBitmap, x, y);
+    }
+};
+
+#undef BITMAP_CLASSNAME_PREFIX
+#undef BITMAP_PIXEL_TO_PMCOLOR