reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame^] | 1 | /* libs/graphics/animator/SkDrawShader.cpp |
| 2 | ** |
| 3 | ** Copyright 2006, The Android Open Source Project |
| 4 | ** |
| 5 | ** Licensed under the Apache License, Version 2.0 (the "License"); |
| 6 | ** you may not use this file except in compliance with the License. |
| 7 | ** You may obtain a copy of the License at |
| 8 | ** |
| 9 | ** http://www.apache.org/licenses/LICENSE-2.0 |
| 10 | ** |
| 11 | ** Unless required by applicable law or agreed to in writing, software |
| 12 | ** distributed under the License is distributed on an "AS IS" BASIS, |
| 13 | ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 14 | ** See the License for the specific language governing permissions and |
| 15 | ** limitations under the License. |
| 16 | */ |
| 17 | |
| 18 | #include "SkDrawShader.h" |
| 19 | #include "SkDrawBitmap.h" |
| 20 | #include "SkDrawMatrix.h" |
| 21 | #include "SkDrawPaint.h" |
| 22 | #include "SkTemplates.h" |
| 23 | |
| 24 | #if SK_USE_CONDENSED_INFO == 0 |
| 25 | |
| 26 | const SkMemberInfo SkDrawShader::fInfo[] = { |
| 27 | SK_MEMBER(matrix, Matrix), |
| 28 | SK_MEMBER(tileMode, TileMode) |
| 29 | }; |
| 30 | |
| 31 | #endif |
| 32 | |
| 33 | DEFINE_GET_MEMBER(SkDrawShader); |
| 34 | |
| 35 | SkDrawShader::SkDrawShader() : matrix(NULL), |
| 36 | tileMode(SkShader::kClamp_TileMode) { |
| 37 | } |
| 38 | |
| 39 | bool SkDrawShader::add() { |
| 40 | if (fPaint->shader != (SkDrawShader*) -1) |
| 41 | return true; |
| 42 | fPaint->shader = this; |
| 43 | fPaint->fOwnsShader = true; |
| 44 | return false; |
| 45 | } |
| 46 | |
| 47 | void SkDrawShader::addPostlude(SkShader* shader) { |
| 48 | if (matrix) |
| 49 | shader->setLocalMatrix(matrix->getMatrix()); |
| 50 | } |
| 51 | |
| 52 | #if SK_USE_CONDENSED_INFO == 0 |
| 53 | |
| 54 | const SkMemberInfo SkDrawBitmapShader::fInfo[] = { |
| 55 | SK_MEMBER_INHERITED, |
| 56 | SK_MEMBER(filterBitmap, Boolean), |
| 57 | SK_MEMBER(image, BaseBitmap) |
| 58 | }; |
| 59 | |
| 60 | #endif |
| 61 | |
| 62 | DEFINE_GET_MEMBER(SkDrawBitmapShader); |
| 63 | |
| 64 | SkDrawBitmapShader::SkDrawBitmapShader() : filterBitmap(-1), image(NULL) {} |
| 65 | |
| 66 | bool SkDrawBitmapShader::add() { |
| 67 | if (fPaint->shader != (SkDrawShader*) -1) |
| 68 | return true; |
| 69 | fPaint->shader = this; |
| 70 | fPaint->fOwnsShader = true; |
| 71 | return false; |
| 72 | } |
| 73 | |
| 74 | SkShader* SkDrawBitmapShader::getShader() { |
| 75 | if (image == NULL) |
| 76 | return NULL; |
| 77 | |
| 78 | // note: bitmap shader now supports independent tile modes for X and Y |
| 79 | // we pass the same to both, but later we should extend this flexibility |
| 80 | // to the xml (e.g. tileModeX="repeat" tileModeY="clmap") |
| 81 | // |
| 82 | // oops, bitmapshader no longer takes filterBitmap, but deduces it at |
| 83 | // draw-time from the paint |
| 84 | SkShader* shader = SkShader::CreateBitmapShader(image->fBitmap, |
| 85 | (SkShader::TileMode) tileMode, |
| 86 | (SkShader::TileMode) tileMode); |
| 87 | SkAutoTDelete<SkShader> autoDel(shader); |
| 88 | addPostlude(shader); |
| 89 | (void)autoDel.detach(); |
| 90 | return shader; |
| 91 | } |