submodule/skia/gm/swizzle.cpp

   1 /*
   2  * Copyright 2019 Google LLC.
   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 "gm/gm.h"
   9 #include "include/core/SkBitmap.h"
  10 #include "include/core/SkCanvas.h"
  11 #include "include/core/SkImageInfo.h"
  12 #include "include/core/SkMatrix.h"
  13 #include "include/core/SkRect.h"
  14 #include "include/core/SkTypes.h"
  15 #include "src/core/SkCanvasPriv.h"
  16 #include "src/gpu/ganesh/GrFragmentProcessor.h"
  17 #include "src/gpu/ganesh/SkGr.h"
  18 #include "src/gpu/ganesh/SurfaceFillContext.h"
  19 #include "src/gpu/ganesh/effects/GrTextureEffect.h"
  20 #include "tools/Resources.h"
  21
  22 DEF_SIMPLE_GPU_GM(swizzle, rContext, canvas, 512, 512) {
  23     auto sfc = SkCanvasPriv::TopDeviceSurfaceFillContext(canvas);
  24     if (!sfc) {
  25         return;
  26     }
  27
  28     SkBitmap bmp;
  29     GetResourceAsBitmap("images/mandrill_512_q075.jpg", &bmp);
  30     auto view = std::get<0>(GrMakeCachedBitmapProxyView(rContext, bmp, GrMipmapped::kNo));
  31     if (!view) {
  32         return;
  33     }
  34     std::unique_ptr<GrFragmentProcessor> imgFP =
  35         GrTextureEffect::Make(std::move(view), bmp.alphaType(), SkMatrix());
  36     auto fp = GrFragmentProcessor::SwizzleOutput(std::move(imgFP), skgpu::Swizzle("grb1"));
  37
  38     sfc->fillWithFP(std::move(fp));
  39 }