| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "gm/gm.h" |
| #include "include/core/SkBitmap.h" |
| #include "include/core/SkCanvas.h" |
| #include "include/core/SkColor.h" |
| #include "include/core/SkMatrix.h" |
| #include "include/core/SkPaint.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkShader.h" |
| #include "include/core/SkString.h" |
| #include "include/core/SkTileMode.h" |
| #include "tools/DecodeUtils.h" |
| #include "tools/Resources.h" |
| |
| DEF_SIMPLE_GM_CAN_FAIL(bitmap_subset_shader, canvas, errorMsg, 256, 256) { |
| canvas->clear(SK_ColorWHITE); |
| |
| SkBitmap source; |
| if (!ToolUtils::GetResourceAsBitmap("images/color_wheel.png", &source)) { |
| *errorMsg = "Could not load images/color_wheel.png. " |
| "Did you forget to set the resourcePath?"; |
| return skiagm::DrawResult::kFail; |
| } |
| SkIRect left = SkIRect::MakeWH(source.width()/2, source.height()); |
| SkIRect right = SkIRect::MakeXYWH(source.width()/2, 0, |
| source.width()/2, source.height()); |
| SkBitmap leftBitmap, rightBitmap; |
| source.extractSubset(&leftBitmap, left); |
| source.extractSubset(&rightBitmap, right); |
| |
| SkMatrix matrix; |
| matrix.setScale(0.75f, 0.75f); |
| matrix.preRotate(30.0f); |
| SkTileMode tm = SkTileMode::kRepeat; |
| SkPaint paint; |
| paint.setShader(leftBitmap.makeShader(tm, tm, SkSamplingOptions(), matrix)); |
| canvas->drawRect(SkRect::MakeWH(256.0f, 128.0f), paint); |
| paint.setShader(rightBitmap.makeShader(tm, tm, SkSamplingOptions(), matrix)); |
| canvas->drawRect(SkRect::MakeXYWH(0, 128.0f, 256.0f, 128.0f), paint); |
| return skiagm::DrawResult::kOk; |
| } |