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      1 /*
      2  * Copyright 2017 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "SkAndroidFrameworkUtils.h"
      9 #include "SkCanvas.h"
     10 #include "SkDevice.h"
     11 
     12 #if SK_SUPPORT_GPU
     13 #include "GrStyle.h"
     14 #include "GrClip.h"
     15 #include "GrRenderTargetContext.h"
     16 #include "GrUserStencilSettings.h"
     17 #include "effects/GrDisableColorXP.h"
     18 #endif //SK_SUPPORT_GPU
     19 
     20 #ifdef SK_BUILD_FOR_ANDROID
     21 
     22 #if SK_SUPPORT_GPU
     23 bool SkAndroidFrameworkUtils::clipWithStencil(SkCanvas* canvas) {
     24     SkRegion clipRegion;
     25     canvas->temporary_internal_getRgnClip(&clipRegion);
     26     if (clipRegion.isEmpty()) {
     27         return false;
     28     }
     29     SkBaseDevice* device = canvas->getDevice();
     30     if (!device) {
     31         return false;
     32     }
     33     GrRenderTargetContext* rtc = device->accessRenderTargetContext();
     34     if (!rtc) {
     35         return false;
     36     }
     37     GrPaint grPaint;
     38     grPaint.setXPFactory(GrDisableColorXPFactory::Get());
     39     GrNoClip noClip;
     40     static constexpr GrUserStencilSettings kDrawToStencil(
     41         GrUserStencilSettings::StaticInit<
     42             0x1,
     43             GrUserStencilTest::kAlways,
     44             0x1,
     45             GrUserStencilOp::kReplace,
     46             GrUserStencilOp::kReplace,
     47             0x1>()
     48     );
     49     rtc->drawRegion(noClip, std::move(grPaint), GrAA::kNo, SkMatrix::I(), clipRegion,
     50                     GrStyle::SimpleFill(), &kDrawToStencil);
     51     return true;
     52 }
     53 #endif //SK_SUPPORT_GPU
     54 
     55 #endif // SK_BUILD_FOR_ANDROID
     56 
     57