Source/WebCore/platform/graphics/gpu/TilingData.h - Issue 7590009: Merge 92255 - Source/WebCore: [Chromium] Use edge-distance method for layer anti-aliasing.

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Issue 7590009: Merge 92255 - Source/WebCore: [Chromium] Use edge-distance method for layer anti-aliasing. (Closed) Base URL: http://svn.webkit.org/repository/webkit/branches/chromium/835/

Patch Set: Created 9 years, 4 months ago

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1 /*	1 /*

2 * Copyright (c) 2010, Google Inc. All rights reserved.	2 * Copyright (c) 2010, Google Inc. All rights reserved.

3 *	3 *

4 * Redistribution and use in source and binary forms, with or without	4 * Redistribution and use in source and binary forms, with or without

5 * modification, are permitted provided that the following conditions are	5 * modification, are permitted provided that the following conditions are

6 * met:	6 * met:

7 *	7 *

8 * * Redistributions of source code must retain the above copyright	8 * * Redistributions of source code must retain the above copyright

9 * notice, this list of conditions and the following disclaimer.	9 * notice, this list of conditions and the following disclaimer.

10 * * Redistributions in binary form must reproduce the above	10 * * Redistributions in binary form must reproduce the above

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54 int numTilesX() const { return m_numTilesX; }	54 int numTilesX() const { return m_numTilesX; }

55 int numTilesY() const { return m_numTilesY; }	55 int numTilesY() const { return m_numTilesY; }

56 int tileIndex(int x, int y) const { return x + y * numTilesX(); }	56 int tileIndex(int x, int y) const { return x + y * numTilesX(); }

57 int tileXIndex(int tile) const { assertTile(tile); return tile % numTilesX() ; }	57 int tileXIndex(int tile) const { assertTile(tile); return tile % numTilesX() ; }

58 int tileYIndex(int tile) const { assertTile(tile); return tile / numTilesX() ; }	58 int tileYIndex(int tile) const { assertTile(tile); return tile / numTilesX() ; }

59 int tileXIndexFromSrcCoord(int) const;	59 int tileXIndexFromSrcCoord(int) const;

60 int tileYIndexFromSrcCoord(int) const;	60 int tileYIndexFromSrcCoord(int) const;

61	61

62 IntRect tileBounds(int tile) const;	62 IntRect tileBounds(int tile) const;

63 IntRect tileBoundsWithBorder(int tile) const;	63 IntRect tileBoundsWithBorder(int tile) const;

64 IntRect tileBoundsWithOuterBorder(int tile) const;

65 FloatRect tileBoundsNormalized(int tile) const;	64 FloatRect tileBoundsNormalized(int tile) const;

66 int tilePositionX(int xIndex) const;	65 int tilePositionX(int xIndex) const;

67 int tilePositionY(int yIndex) const;	66 int tilePositionY(int yIndex) const;

68 int tileSizeX(int xIndex) const;	67 int tileSizeX(int xIndex) const;

69 int tileSizeY(int yIndex) const;	68 int tileSizeY(int yIndex) const;

70 IntRect overlappedTileIndices(const IntRect& srcRect) const;	69 IntRect overlappedTileIndices(const IntRect& srcRect) const;

71 IntRect overlappedTileIndices(const FloatRect& srcRect) const;	70 IntRect overlappedTileIndices(const FloatRect& srcRect) const;

72	71

73 // Given a set of source and destination coordinates for a drawing quad	72 // Given a set of source and destination coordinates for a drawing quad

74 // in texel units, returns adjusted data to render just the one tile.	73 // in texel units, returns adjusted data to render just the one tile.

75 void intersectDrawQuad(const FloatRect& srcRect, const FloatRect& dstRect, i nt tile, FloatRect* newSrc, FloatRect* newDst) const;	74 void intersectDrawQuad(const FloatRect& srcRect, const FloatRect& dstRect, i nt tile, FloatRect* newSrc, FloatRect* newDst) const;

76	75

77 // Difference between tileBound's and tileBoundWithBorder's location().	76 // Difference between tileBound's and tileBoundWithBorder's location().

78 IntPoint textureOffset() const;	77 IntPoint textureOffset(int xIndex, int yIndex) const;

79	78

80 private:	79 private:

81 TilingData() : m_maxTextureSize(0), m_totalSizeX(0), m_totalSizeY(0) {}	80 TilingData() : m_maxTextureSize(0), m_totalSizeX(0), m_totalSizeY(0) {}

82 #ifndef NDEBUG	81 #ifndef NDEBUG

83 void assertTile(int tile) const { ASSERT(tile >= 0 && tile < numTiles()); }	82 void assertTile(int tile) const { ASSERT(tile >= 0 && tile < numTiles()); }

84 #else	83 #else

85 void assertTile(int) const {}	84 void assertTile(int) const {}

86 #endif	85 #endif

87 void recomputeNumTiles();	86 void recomputeNumTiles();

88	87

89 int m_maxTextureSize;	88 int m_maxTextureSize;

90 int m_totalSizeX;	89 int m_totalSizeX;

91 int m_totalSizeY;	90 int m_totalSizeY;

92 int m_borderTexels; // 0 or 1	91 int m_borderTexels; // 0 or 1

93	92

94 // computed values:	93 // computed values:

95 int m_numTilesX;	94 int m_numTilesX;

96 int m_numTilesY;	95 int m_numTilesY;

97 };	96 };

98	97

99 }	98 }

100	99

101 #endif // TilingData_h	100 #endif // TilingData_h

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