Revert of Initial picture shader implementation

gm/pictureshader.cpp

-/*
- * 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.h"
-
-#include "SkBitmap.h"
-#include "SkPaint.h"
-#include "SkPicture.h"
-#include "SkShader.h"
-
-namespace skiagm {
-
-static struct {
-    SkShader::TileMode tmx;
-    SkShader::TileMode tmy;
-} kTileConfigs[] = {
-    { SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode },
-    { SkShader::kRepeat_TileMode, SkShader::kClamp_TileMode  },
-    { SkShader::kMirror_TileMode, SkShader::kRepeat_TileMode },
-};
-
-class PictureShaderGM : public GM {
-public:
-
-    PictureShaderGM(SkScalar tileSize, SkScalar sceneSize)
-        : fTileSize(tileSize)
-        , fSceneSize(sceneSize) {
-
-        // Build the picture.
-        SkAutoTUnref<SkPicture> p(SkNEW(SkPicture));
-        SkCanvas* pictureCanvas = p->beginRecording(SkScalarRoundToInt(tileSize),
-                                                    SkScalarRoundToInt(tileSize));
-        this->drawTile(pictureCanvas);
-        p->endRecording();
-
-        // Build a reference bitmap.
-        SkBitmap bm;
-        bm.allocN32Pixels(SkScalarRoundToInt(tileSize), SkScalarRoundToInt(tileSize));
-        bm.eraseColor(SK_ColorTRANSPARENT);
-        SkCanvas bitmapCanvas(bm);
-        this->drawTile(&bitmapCanvas);
-
-        for (unsigned i = 0; i < SK_ARRAY_COUNT(kTileConfigs); ++i) {
-            fPictureShaders[i].reset(SkShader::CreatePictureShader(p,
-                                                                   kTileConfigs[i].tmx,
-                                                                   kTileConfigs[i].tmy));
-
-            fBitmapShaders[i].reset(SkShader::CreateBitmapShader(bm,
-                                                                 kTileConfigs[i].tmx,
-                                                                 kTileConfigs[i].tmy));
-        }
-    }
-
-protected:
-    virtual SkString onShortName() SK_OVERRIDE {
-        return SkString("pictureshader");
-    }
-
-    virtual SkISize onISize() SK_OVERRIDE {
-        return SkISize::Make(1400, 1250);
-    }
-
-    virtual void onDraw(SkCanvas* canvas) SK_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);
-    }
-
-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);
-
-        fPictureShaders[tileMode]->setLocalMatrix(localMatrix);
-        paint.setShader(fPictureShaders[tileMode].get());
-        canvas->drawRect(SkRect::MakeWH(fSceneSize, fSceneSize), paint);
-
-        canvas->translate(fSceneSize * 1.1f, 0);
-
-        fBitmapShaders[tileMode]->setLocalMatrix(localMatrix);
-        paint.setShader(fBitmapShaders[tileMode].get());
-        canvas->drawRect(SkRect::MakeWH(fSceneSize, fSceneSize), paint);
-
-        canvas->restore();
-    }
-
-    SkScalar    fTileSize;
-    SkScalar    fSceneSize;
-
-    SkAutoTUnref<SkShader> fPictureShaders[SK_ARRAY_COUNT(kTileConfigs)];
-    SkAutoTUnref<SkShader> fBitmapShaders[SK_ARRAY_COUNT(kTileConfigs)];
-
-    typedef GM INHERITED;
-};
-
-DEF_GM( return SkNEW_ARGS(PictureShaderGM, (50, 100)); )
-}