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1 /* | 1 /* |
2 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 The Android Open Source Project |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkBitmap_DEFINED | 8 #ifndef SkBitmap_DEFINED |
9 #define SkBitmap_DEFINED | 9 #define SkBitmap_DEFINED |
10 | 10 |
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98 * If the colortype is kUnknown_SkColorType, then 0 is returned. | 98 * If the colortype is kUnknown_SkColorType, then 0 is returned. |
99 */ | 99 */ |
100 int rowBytesAsPixels() const { | 100 int rowBytesAsPixels() const { |
101 return fRowBytes >> this->shiftPerPixel(); | 101 return fRowBytes >> this->shiftPerPixel(); |
102 } | 102 } |
103 | 103 |
104 /** | 104 /** |
105 * Return the shift amount per pixel (i.e. 0 for 1-byte per pixel, 1 for 2-
bytes per pixel | 105 * Return the shift amount per pixel (i.e. 0 for 1-byte per pixel, 1 for 2-
bytes per pixel |
106 * colortypes, 2 for 4-bytes per pixel colortypes). Return 0 for kUnknown_S
kColorType. | 106 * colortypes, 2 for 4-bytes per pixel colortypes). Return 0 for kUnknown_S
kColorType. |
107 */ | 107 */ |
108 int shiftPerPixel() const { return this->bytesPerPixel() >> 1; } | 108 int shiftPerPixel() const { return this->fInfo.shiftPerPixel(); } |
109 | 109 |
110 /////////////////////////////////////////////////////////////////////////// | 110 /////////////////////////////////////////////////////////////////////////// |
111 | 111 |
112 /** Return true iff the bitmap has empty dimensions. | 112 /** Return true iff the bitmap has empty dimensions. |
113 * Hey! Before you use this, see if you really want to know drawsNothing()
instead. | 113 * Hey! Before you use this, see if you really want to know drawsNothing()
instead. |
114 */ | 114 */ |
115 bool empty() const { return fInfo.isEmpty(); } | 115 bool empty() const { return fInfo.isEmpty(); } |
116 | 116 |
117 /** Return true iff the bitmap has no pixelref. Note: this can return true e
ven if the | 117 /** Return true iff the bitmap has no pixelref. Note: this can return true e
ven if the |
118 * dimensions of the bitmap are > 0 (see empty()). | 118 * dimensions of the bitmap are > 0 (see empty()). |
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825 | 825 |
826 inline SkPMColor SkBitmap::getIndex8Color(int x, int y) const { | 826 inline SkPMColor SkBitmap::getIndex8Color(int x, int y) const { |
827 SkASSERT(fPixels); | 827 SkASSERT(fPixels); |
828 SkASSERT(kIndex_8_SkColorType == this->colorType()); | 828 SkASSERT(kIndex_8_SkColorType == this->colorType()); |
829 SkASSERT((unsigned)x < (unsigned)this->width() && (unsigned)y < (unsigned)th
is->height()); | 829 SkASSERT((unsigned)x < (unsigned)this->width() && (unsigned)y < (unsigned)th
is->height()); |
830 SkASSERT(fColorTable); | 830 SkASSERT(fColorTable); |
831 return (*fColorTable)[*((const uint8_t*)fPixels + y * fRowBytes + x)]; | 831 return (*fColorTable)[*((const uint8_t*)fPixels + y * fRowBytes + x)]; |
832 } | 832 } |
833 | 833 |
834 #endif | 834 #endif |
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