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- /*
- * Copyright 2014 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/SkPicture.h"
- #include "include/core/SkPictureRecorder.h"
- #include "include/core/SkPoint.h"
- #include "include/core/SkRect.h"
- #include "include/core/SkRefCnt.h"
- #include "include/core/SkScalar.h"
- #include "include/core/SkShader.h"
- #include "include/core/SkSize.h"
- #include "include/core/SkString.h"
- #include "include/core/SkTileMode.h"
- #include "include/core/SkTypes.h"
- #include "tools/ToolUtils.h"
- static struct {
- SkTileMode tmx;
- SkTileMode tmy;
- } kTileConfigs[] = {
- { SkTileMode::kRepeat, SkTileMode::kRepeat },
- { SkTileMode::kRepeat, SkTileMode::kClamp },
- { SkTileMode::kMirror, SkTileMode::kRepeat },
- };
- class PictureShaderGM : public skiagm::GM {
- public:
- PictureShaderGM(SkScalar tileSize, SkScalar sceneSize, bool useLocalMatrixWrapper = false)
- : fTileSize(tileSize)
- , fSceneSize(sceneSize)
- , fUseLocalMatrixWrapper(useLocalMatrixWrapper) {}
- protected:
- void onOnceBeforeDraw() override {
- // Build the picture.
- SkPictureRecorder recorder;
- SkCanvas* pictureCanvas = recorder.beginRecording(fTileSize, fTileSize, nullptr, 0);
- this->drawTile(pictureCanvas);
- fPicture = recorder.finishRecordingAsPicture();
- // Build a reference bitmap.
- fBitmap.allocN32Pixels(SkScalarCeilToInt(fTileSize), SkScalarCeilToInt(fTileSize));
- fBitmap.eraseColor(SK_ColorTRANSPARENT);
- SkCanvas bitmapCanvas(fBitmap);
- this->drawTile(&bitmapCanvas);
- }
- SkString onShortName() override {
- return SkStringPrintf("pictureshader%s", fUseLocalMatrixWrapper ? "_localwrapper" : "");
- }
- SkISize onISize() override {
- return SkISize::Make(1400, 1450);
- }
- void onDraw(SkCanvas* canvas) override {
- this->drawSceneColumn(canvas, SkPoint::Make(0, 0), 1, 1, 0);
- this->drawSceneColumn(canvas, SkPoint::Make(0, fSceneSize * 6.4f), 1, 2, 0);
- this->drawSceneColumn(canvas, SkPoint::Make(fSceneSize * 2.4f, 0), 1, 1, 1);
- this->drawSceneColumn(canvas, SkPoint::Make(fSceneSize * 2.4f, fSceneSize * 6.4f), 1, 1, 2);
- this->drawSceneColumn(canvas, SkPoint::Make(fSceneSize * 4.8f, 0), 2, 1, 0);
- this->drawSceneColumn(canvas, SkPoint::Make(fSceneSize * 9.6f, 0), 2, 2, 0);
- // One last custom row to exercise negative scaling
- SkMatrix ctm, localMatrix;
- ctm.setTranslate(fSceneSize * 2.1f, fSceneSize * 13.8f);
- ctm.preScale(-1, -1);
- localMatrix.setScale(2, 2);
- this->drawScene(canvas, ctm, localMatrix, 0);
- ctm.setTranslate(fSceneSize * 2.4f, fSceneSize * 12.8f);
- localMatrix.setScale(-1, -1);
- this->drawScene(canvas, ctm, localMatrix, 0);
- ctm.setTranslate(fSceneSize * 4.8f, fSceneSize * 12.3f);
- ctm.preScale(2, 2);
- this->drawScene(canvas, ctm, localMatrix, 0);
- ctm.setTranslate(fSceneSize * 13.8f, fSceneSize * 14.3f);
- ctm.preScale(-2, -2);
- localMatrix.setTranslate(fTileSize / 4, fTileSize / 4);
- localMatrix.preRotate(45);
- localMatrix.preScale(-2, -2);
- this->drawScene(canvas, ctm, localMatrix, 0);
- }
- private:
- void drawSceneColumn(SkCanvas* canvas, const SkPoint& pos, SkScalar scale, SkScalar localScale,
- unsigned tileMode) {
- SkMatrix ctm, localMatrix;
- ctm.setTranslate(pos.x(), pos.y());
- ctm.preScale(scale, scale);
- localMatrix.setScale(localScale, localScale);
- this->drawScene(canvas, ctm, localMatrix, tileMode);
- ctm.setTranslate(pos.x(), pos.y() + fSceneSize * 1.2f * scale);
- ctm.preScale(scale, scale);
- localMatrix.setTranslate(fTileSize / 4, fTileSize / 4);
- localMatrix.preScale(localScale, localScale);
- this->drawScene(canvas, ctm, localMatrix, tileMode);
- ctm.setTranslate(pos.x(), pos.y() + fSceneSize * 2.4f * scale);
- ctm.preScale(scale, scale);
- localMatrix.setRotate(45);
- localMatrix.preScale(localScale, localScale);
- this->drawScene(canvas, ctm, localMatrix, tileMode);
- ctm.setTranslate(pos.x(), pos.y() + fSceneSize * 3.6f * scale);
- ctm.preScale(scale, scale);
- localMatrix.setSkew(1, 0);
- localMatrix.preScale(localScale, localScale);
- this->drawScene(canvas, ctm, localMatrix, tileMode);
- ctm.setTranslate(pos.x(), pos.y() + fSceneSize * 4.8f * scale);
- ctm.preScale(scale, scale);
- localMatrix.setTranslate(fTileSize / 4, fTileSize / 4);
- localMatrix.preRotate(45);
- localMatrix.preScale(localScale, localScale);
- this->drawScene(canvas, ctm, localMatrix, tileMode);
- }
- void drawTile(SkCanvas* canvas) {
- SkPaint paint;
- paint.setColor(SK_ColorGREEN);
- paint.setStyle(SkPaint::kFill_Style);
- paint.setAntiAlias(true);
- canvas->drawCircle(fTileSize / 4, fTileSize / 4, fTileSize / 4, paint);
- canvas->drawRect(SkRect::MakeXYWH(fTileSize / 2, fTileSize / 2,
- fTileSize / 2, fTileSize / 2), paint);
- paint.setColor(SK_ColorRED);
- canvas->drawLine(fTileSize / 2, fTileSize * 1 / 3,
- fTileSize / 2, fTileSize * 2 / 3, paint);
- canvas->drawLine(fTileSize * 1 / 3, fTileSize / 2,
- fTileSize * 2 / 3, fTileSize / 2, paint);
- }
- void drawScene(SkCanvas* canvas, const SkMatrix& matrix, const SkMatrix& localMatrix,
- unsigned tileMode) {
- SkASSERT(tileMode < SK_ARRAY_COUNT(kTileConfigs));
- SkPaint paint;
- paint.setStyle(SkPaint::kFill_Style);
- paint.setColor(SK_ColorLTGRAY);
- canvas->save();
- canvas->concat(matrix);
- canvas->drawRect(SkRect::MakeWH(fSceneSize, fSceneSize), paint);
- canvas->drawRect(SkRect::MakeXYWH(fSceneSize * 1.1f, 0, fSceneSize, fSceneSize), paint);
- auto pictureShader = fPicture->makeShader(kTileConfigs[tileMode].tmx,
- kTileConfigs[tileMode].tmy,
- fUseLocalMatrixWrapper ? nullptr : &localMatrix,
- nullptr);
- paint.setShader(fUseLocalMatrixWrapper
- ? pictureShader->makeWithLocalMatrix(localMatrix)
- : pictureShader);
- canvas->drawRect(SkRect::MakeWH(fSceneSize, fSceneSize), paint);
- canvas->translate(fSceneSize * 1.1f, 0);
- auto bitmapShader = fBitmap.makeShader(
- kTileConfigs[tileMode].tmx,
- kTileConfigs[tileMode].tmy,
- fUseLocalMatrixWrapper
- ? nullptr : &localMatrix);
- paint.setShader(fUseLocalMatrixWrapper
- ? bitmapShader->makeWithLocalMatrix(localMatrix)
- : bitmapShader);
- canvas->drawRect(SkRect::MakeWH(fSceneSize, fSceneSize), paint);
- canvas->restore();
- }
- sk_sp<SkPicture> fPicture;
- SkBitmap fBitmap;
- SkScalar fTileSize;
- SkScalar fSceneSize;
- bool fUseLocalMatrixWrapper;
- typedef GM INHERITED;
- };
- DEF_GM(return new PictureShaderGM(50, 100);)
- DEF_GM(return new PictureShaderGM(50, 100, true);)
- DEF_SIMPLE_GM(tiled_picture_shader, canvas, 400, 400) {
- // https://code.google.com/p/skia/issues/detail?id=3398
- SkRect tile = SkRect::MakeWH(100, 100);
- SkPictureRecorder recorder;
- SkCanvas* c = recorder.beginRecording(tile);
- SkRect r = tile;
- r.inset(4, 4);
- SkPaint p;
- p.setColor(ToolUtils::color_to_565(0xFF303F9F)); // dark blue
- c->drawRect(r, p);
- p.setColor(ToolUtils::color_to_565(0xFFC5CAE9)); // light blue
- p.setStrokeWidth(10);
- c->drawLine(20, 20, 80, 80, p);
- sk_sp<SkPicture> picture(recorder.finishRecordingAsPicture());
- p.setColor(ToolUtils::color_to_565(0xFF8BC34A)); // green
- canvas->drawPaint(p);
- canvas->clipRect(SkRect::MakeXYWH(0, 0, 400, 350));
- p.setColor(0xFFB6B6B6); // gray
- canvas->drawPaint(p);
- p.setShader(picture->makeShader(SkTileMode::kRepeat, SkTileMode::kRepeat));
- canvas->drawPaint(p);
- }
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