skia2/gm/imagemasksubset.cpp
John Stiles a6841be235 Enable ClangTidy check llvm-namespace-comment.
This fixes a large number of SkSL namespaces which were labeled as if
they were anonymous, and also a handful of other mislabeled namespaces.
Missing namespace-end comments have been added throughout.
A number of diffs are just indentation-related (adjusting 1- or 3-
space indents to 2-space).

Change-Id: I6c62052a0d3aea4ae12ca07e0c2a8587b2fce4ec
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/308503
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
2020-08-06 19:07:52 +00:00

93 lines
3.0 KiB
C++

/*
* 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/SkCanvas.h"
#include "include/core/SkColorSpace.h"
#include "include/core/SkImage.h"
#include "include/core/SkImageGenerator.h"
#include "include/core/SkImageInfo.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkSize.h"
#include "include/core/SkSurface.h"
#include "include/core/SkTypes.h"
#include "include/gpu/GrDirectContext.h"
#include "tools/ToolUtils.h"
namespace {
const SkISize kSize = SkISize::Make(100, 100);
const SkIRect kSubset = SkIRect::MakeLTRB(25, 25, 75, 75);
const SkRect kDest = SkRect::MakeXYWH(10, 10, 100, 100);
sk_sp<SkImage> make_mask(const sk_sp<SkSurface>& surface) {
ToolUtils::draw_checkerboard(surface->getCanvas(), 0x80808080, 0x00000000, 5);
return surface->makeImageSnapshot();
}
class MaskGenerator final : public SkImageGenerator {
public:
MaskGenerator(const SkImageInfo& info) : INHERITED(info) {}
bool onGetPixels(const SkImageInfo& info, void* pixels, size_t rowBytes, const Options&)
override {
SkImageInfo surfaceInfo = info;
if (kAlpha_8_SkColorType == info.colorType()) {
surfaceInfo = surfaceInfo.makeColorSpace(nullptr);
}
make_mask(SkSurface::MakeRasterDirect(surfaceInfo, pixels, rowBytes));
return true;
}
private:
typedef SkImageGenerator INHERITED;
};
using MakerT = sk_sp<SkImage>(*)(SkCanvas*, const SkImageInfo&);
const MakerT makers[] = {
// SkImage_Raster
[](SkCanvas*, const SkImageInfo& info) -> sk_sp<SkImage> {
return make_mask(SkSurface::MakeRaster(info));
},
// SkImage_Gpu
[](SkCanvas* c, const SkImageInfo& info) -> sk_sp<SkImage> {
sk_sp<SkSurface> surface;
surface = SkSurface::MakeRenderTarget(c->recordingContext(), SkBudgeted::kNo, info);
return make_mask(surface ? surface : SkSurface::MakeRaster(info));
},
// SkImage_Lazy
[](SkCanvas*, const SkImageInfo& info) -> sk_sp<SkImage> {
return SkImage::MakeFromGenerator(std::make_unique<MaskGenerator>(info));
},
};
} // namespace
// Checks whether subset SkImages preserve the original color type (A8 in this case).
DEF_SIMPLE_GM(imagemasksubset, canvas, 480, 480) {
SkPaint paint;
paint.setColor(0xff00ff00);
const SkImageInfo info = SkImageInfo::MakeA8(kSize.width(), kSize.height());
for (size_t i = 0; i < SK_ARRAY_COUNT(makers); ++i) {
sk_sp<SkImage> image = makers[i](canvas, info);
if (image) {
canvas->drawImageRect(image, SkRect::Make(kSubset), kDest, &paint);
auto direct = GrAsDirectContext(canvas->recordingContext());
sk_sp<SkImage> subset = image->makeSubset(kSubset, direct);
canvas->drawImageRect(subset, kDest.makeOffset(kSize.width() * 1.5f, 0), &paint);
}
canvas->translate(0, kSize.height() * 1.5f);
}
}