| OLD | NEW |
| 1 | 1 |
| 2 /* | 2 /* |
| 3 * Copyright 2006 The Android Open Source Project | 3 * Copyright 2006 The Android Open Source Project |
| 4 * | 4 * |
| 5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
| 6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
| 7 */ | 7 */ |
| 8 | 8 |
| 9 | 9 |
| 10 #include "SkTransparentShader.h" | 10 #include "SkTransparentShader.h" |
| 11 #include "SkColorPriv.h" | 11 #include "SkColorPriv.h" |
| 12 #include "SkString.h" | 12 #include "SkString.h" |
| 13 | 13 |
| 14 bool SkTransparentShader::setContext(const SkBitmap& device, | 14 bool SkTransparentShader::setContext(const SkBitmap& device, |
| 15 const SkPaint& paint, | 15 const SkPaint& paint, |
| 16 const SkMatrix& matrix) { | 16 const SkMatrix& matrix) { |
| 17 fDevice = &device; | 17 fDevice = &device; |
| 18 fAlpha = paint.getAlpha(); | 18 fAlpha = paint.getAlpha(); |
| 19 | 19 |
| 20 return this->INHERITED::setContext(device, paint, matrix); | 20 return this->INHERITED::setContext(device, paint, matrix); |
| 21 } | 21 } |
| 22 | 22 |
| 23 uint32_t SkTransparentShader::getFlags() { | 23 uint32_t SkTransparentShader::getFlags() { |
| 24 uint32_t flags = this->INHERITED::getFlags(); | 24 uint32_t flags = this->INHERITED::getFlags(); |
| 25 | 25 |
| 26 switch (fDevice->getConfig()) { | 26 switch (fDevice->config()) { |
| 27 case SkBitmap::kRGB_565_Config: | 27 case SkBitmap::kRGB_565_Config: |
| 28 flags |= kHasSpan16_Flag; | 28 flags |= kHasSpan16_Flag; |
| 29 if (fAlpha == 255) | 29 if (fAlpha == 255) |
| 30 flags |= kOpaqueAlpha_Flag; | 30 flags |= kOpaqueAlpha_Flag; |
| 31 break; | 31 break; |
| 32 case SkBitmap::kARGB_8888_Config: | 32 case SkBitmap::kARGB_8888_Config: |
| 33 if (fAlpha == 255 && fDevice->isOpaque()) | 33 if (fAlpha == 255 && fDevice->isOpaque()) |
| 34 flags |= kOpaqueAlpha_Flag; | 34 flags |= kOpaqueAlpha_Flag; |
| 35 break; | 35 break; |
| 36 default: | 36 default: |
| 37 break; | 37 break; |
| 38 } | 38 } |
| 39 return flags; | 39 return flags; |
| 40 } | 40 } |
| 41 | 41 |
| 42 void SkTransparentShader::shadeSpan(int x, int y, SkPMColor span[], int count) { | 42 void SkTransparentShader::shadeSpan(int x, int y, SkPMColor span[], int count) { |
| 43 unsigned scale = SkAlpha255To256(fAlpha); | 43 unsigned scale = SkAlpha255To256(fAlpha); |
| 44 | 44 |
| 45 switch (fDevice->getConfig()) { | 45 switch (fDevice->config()) { |
| 46 case SkBitmap::kARGB_8888_Config: | 46 case SkBitmap::kARGB_8888_Config: |
| 47 if (scale == 256) { | 47 if (scale == 256) { |
| 48 SkPMColor* src = fDevice->getAddr32(x, y); | 48 SkPMColor* src = fDevice->getAddr32(x, y); |
| 49 if (src != span) { | 49 if (src != span) { |
| 50 memcpy(span, src, count * sizeof(SkPMColor)); | 50 memcpy(span, src, count * sizeof(SkPMColor)); |
| 51 } | 51 } |
| 52 } else { | 52 } else { |
| 53 const SkPMColor* src = fDevice->getAddr32(x, y); | 53 const SkPMColor* src = fDevice->getAddr32(x, y); |
| 54 for (int i = count - 1; i >= 0; --i) { | 54 for (int i = count - 1; i >= 0; --i) { |
| 55 span[i] = SkAlphaMulQ(src[i], scale); | 55 span[i] = SkAlphaMulQ(src[i], scale); |
| (...skipping 40 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 96 } | 96 } |
| 97 case SkBitmap::kA1_Config: | 97 case SkBitmap::kA1_Config: |
| 98 SkDEBUGFAIL("kA1_Config umimplemented at this time"); | 98 SkDEBUGFAIL("kA1_Config umimplemented at this time"); |
| 99 break; | 99 break; |
| 100 default: // to avoid warnings | 100 default: // to avoid warnings |
| 101 break; | 101 break; |
| 102 } | 102 } |
| 103 } | 103 } |
| 104 | 104 |
| 105 void SkTransparentShader::shadeSpan16(int x, int y, uint16_t span[], int count)
{ | 105 void SkTransparentShader::shadeSpan16(int x, int y, uint16_t span[], int count)
{ |
| 106 SkASSERT(fDevice->getConfig() == SkBitmap::kRGB_565_Config); | 106 SkASSERT(fDevice->config() == SkBitmap::kRGB_565_Config); |
| 107 | 107 |
| 108 uint16_t* src = fDevice->getAddr16(x, y); | 108 uint16_t* src = fDevice->getAddr16(x, y); |
| 109 if (src != span) { | 109 if (src != span) { |
| 110 memcpy(span, src, count << 1); | 110 memcpy(span, src, count << 1); |
| 111 } | 111 } |
| 112 } | 112 } |
| 113 | 113 |
| 114 #ifdef SK_DEVELOPER | 114 #ifdef SK_DEVELOPER |
| 115 void SkTransparentShader::toString(SkString* str) const { | 115 void SkTransparentShader::toString(SkString* str) const { |
| 116 str->append("SkTransparentShader: ("); | 116 str->append("SkTransparentShader: ("); |
| 117 | 117 |
| 118 this->INHERITED::toString(str); | 118 this->INHERITED::toString(str); |
| 119 | 119 |
| 120 str->append(")"); | 120 str->append(")"); |
| 121 } | 121 } |
| 122 #endif | 122 #endif |
| OLD | NEW |