82ebe04caf
Moved named common transfer functions and gamuts to constexpr values in SkColorSpace.h, in SkNamedTransferFn and SkNamedGamut namespaces. Converted nearly all SkColorSpace::MakeRGB calls within Skia to use the new factory with the named values. Multiple clients want a way to extract named transfer function and gamut - this still doesn't provide that, but this may be a better path forward for honestly advertising how SkColorSpace works internally. Originally landed as: https://skia.googlesource.com/skia/+/a9549ab31630fc244094e6f1692371cbaf87f666 Re-landing with a new serialization format, but maintaining ability to load old serialized color spaces, for SKP compatibility. Bug: skia: Change-Id: Ib84a6e1cd5d7d9816175773fdbaff2ca32658667 Reviewed-on: https://skia-review.googlesource.com/c/181176 Reviewed-by: Brian Osman <brianosman@google.com> Commit-Queue: Brian Osman <brianosman@google.com>
89 lines
2.9 KiB
C++
89 lines
2.9 KiB
C++
/*
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* Copyright 2017 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "gm.h"
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#include "SkPaint.h"
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#include "SkPicture.h"
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#include "SkPictureRecorder.h"
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#include "SkShader.h"
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#include "SkSurface.h"
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class PictureShaderCacheGM : public skiagm::GM {
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public:
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PictureShaderCacheGM(SkScalar tileSize)
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: fTileSize(tileSize) {
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}
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protected:
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void drawTile(SkCanvas* canvas) {
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SkPaint paint;
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paint.setColor(SK_ColorGREEN);
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paint.setStyle(SkPaint::kFill_Style);
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paint.setAntiAlias(true);
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canvas->drawCircle(fTileSize / 4, fTileSize / 4, fTileSize / 4, paint);
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canvas->drawRect(SkRect::MakeXYWH(fTileSize / 2, fTileSize / 2,
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fTileSize / 2, fTileSize / 2), paint);
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paint.setColor(SK_ColorRED);
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canvas->drawLine(fTileSize / 2, fTileSize * 1 / 3,
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fTileSize / 2, fTileSize * 2 / 3, paint);
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canvas->drawLine(fTileSize * 1 / 3, fTileSize / 2,
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fTileSize * 2 / 3, fTileSize / 2, paint);
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}
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void onOnceBeforeDraw() override {
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SkPictureRecorder recorder;
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SkCanvas* pictureCanvas = recorder.beginRecording(fTileSize, fTileSize, nullptr, 0);
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this->drawTile(pictureCanvas);
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fPicture = recorder.finishRecordingAsPicture();
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}
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SkString onShortName() override {
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return SkString("pictureshadercache");
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}
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SkISize onISize() override {
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return SkISize::Make(100, 100);
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}
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void onDraw(SkCanvas* canvas) override {
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SkPaint paint;
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paint.setShader(SkShader::MakePictureShader(fPicture, SkShader::kRepeat_TileMode,
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SkShader::kRepeat_TileMode, nullptr,
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nullptr));
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{
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// Render in a funny color space that converts green to yellow.
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skcms_Matrix3x3 greenToYellow = {{
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{ 1, 1, 0 },
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{ 0, 1, 0 },
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{ 0, 0, 1 },
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}};
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sk_sp<SkColorSpace> gty = SkColorSpace::MakeRGB(SkNamedTransferFn::kSRGB,
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greenToYellow);
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SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100, std::move(gty));
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sk_sp<SkSurface> surface(SkSurface::MakeRaster(info));
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surface->getCanvas()->drawRect(SkRect::MakeWH(fTileSize, fTileSize), paint);
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}
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// When we draw to the canvas, we should see green because we should *not* reuse the
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// cached picture shader.
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canvas->drawRect(SkRect::MakeWH(fTileSize, fTileSize), paint);
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}
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private:
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SkScalar fTileSize;
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sk_sp<SkPicture> fPicture;
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SkBitmap fBitmap;
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typedef GM INHERITED;
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};
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DEF_GM(return new PictureShaderCacheGM(100);)
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