| /* | 
 |  * Copyright 2012 Google Inc. | 
 |  * | 
 |  * Use of this source code is governed by a BSD-style license that can be | 
 |  * found in the LICENSE file. | 
 |  */ | 
 |  | 
 | #include "SkBitmapDevice.h" | 
 | #include "SkCanvas.h" | 
 | #include "SkColorPriv.h" | 
 | #include "SkData.h" | 
 | #include "SkDecodingImageGenerator.h" | 
 | #include "SkError.h" | 
 | #include "SkImageEncoder.h" | 
 | #include "SkImageGenerator.h" | 
 | #include "SkPaint.h" | 
 | #include "SkPicture.h" | 
 | #include "SkPictureUtils.h" | 
 | #include "SkQuadTreePicture.h" | 
 | #include "SkRRect.h" | 
 | #include "SkRandom.h" | 
 | #include "SkShader.h" | 
 | #include "SkStream.h" | 
 | #include "SkTileGrid.h" | 
 | #include "Test.h" | 
 |  | 
 | static const int gColorScale = 30; | 
 | static const int gColorOffset = 60; | 
 |  | 
 | static void make_bm(SkBitmap* bm, int w, int h, SkColor color, bool immutable) { | 
 |     bm->allocN32Pixels(w, h); | 
 |     bm->eraseColor(color); | 
 |     if (immutable) { | 
 |         bm->setImmutable(); | 
 |     } | 
 | } | 
 |  | 
 | static void make_checkerboard(SkBitmap* bm, int w, int h, bool immutable) { | 
 |     SkASSERT(w % 2 == 0); | 
 |     SkASSERT(h % 2 == 0); | 
 |     bm->allocPixels(SkImageInfo::Make(w, h, kAlpha_8_SkColorType, | 
 |                                       kPremul_SkAlphaType)); | 
 |     SkAutoLockPixels lock(*bm); | 
 |     for (int y = 0; y < h; y += 2) { | 
 |         uint8_t* s = bm->getAddr8(0, y); | 
 |         for (int x = 0; x < w; x += 2) { | 
 |             *s++ = 0xFF; | 
 |             *s++ = 0x00; | 
 |         } | 
 |         s = bm->getAddr8(0, y + 1); | 
 |         for (int x = 0; x < w; x += 2) { | 
 |             *s++ = 0x00; | 
 |             *s++ = 0xFF; | 
 |         } | 
 |     } | 
 |     if (immutable) { | 
 |         bm->setImmutable(); | 
 |     } | 
 | } | 
 |  | 
 | static void init_paint(SkPaint* paint, const SkBitmap &bm) { | 
 |     SkShader* shader = SkShader::CreateBitmapShader(bm, | 
 |                                                     SkShader::kClamp_TileMode, | 
 |                                                     SkShader::kClamp_TileMode); | 
 |     paint->setShader(shader)->unref(); | 
 | } | 
 |  | 
 | typedef void (*DrawBitmapProc)(SkCanvas*, const SkBitmap&, | 
 |                                const SkBitmap&, const SkPoint&, | 
 |                                SkTDArray<SkPixelRef*>* usedPixRefs); | 
 |  | 
 | static void drawpaint_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                            const SkBitmap& altBM, const SkPoint& pos, | 
 |                            SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkPaint paint; | 
 |     init_paint(&paint, bm); | 
 |  | 
 |     canvas->drawPaint(paint); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 | } | 
 |  | 
 | static void drawpoints_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                             const SkBitmap& altBM, const SkPoint& pos, | 
 |                             SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkPaint paint; | 
 |     init_paint(&paint, bm); | 
 |  | 
 |     // draw a rect | 
 |     SkPoint points[5] = { | 
 |         { pos.fX, pos.fY }, | 
 |         { pos.fX + bm.width() - 1, pos.fY }, | 
 |         { pos.fX + bm.width() - 1, pos.fY + bm.height() - 1 }, | 
 |         { pos.fX, pos.fY + bm.height() - 1 }, | 
 |         { pos.fX, pos.fY }, | 
 |     }; | 
 |  | 
 |     canvas->drawPoints(SkCanvas::kPolygon_PointMode, 5, points, paint); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 | } | 
 |  | 
 | static void drawrect_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                           const SkBitmap& altBM, const SkPoint& pos, | 
 |                           SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkPaint paint; | 
 |     init_paint(&paint, bm); | 
 |  | 
 |     SkRect r = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }; | 
 |     r.offset(pos.fX, pos.fY); | 
 |  | 
 |     canvas->drawRect(r, paint); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 | } | 
 |  | 
 | static void drawoval_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                           const SkBitmap& altBM, const SkPoint& pos, | 
 |                           SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkPaint paint; | 
 |     init_paint(&paint, bm); | 
 |  | 
 |     SkRect r = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }; | 
 |     r.offset(pos.fX, pos.fY); | 
 |  | 
 |     canvas->drawOval(r, paint); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 | } | 
 |  | 
 | static void drawrrect_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                            const SkBitmap& altBM, const SkPoint& pos, | 
 |                            SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkPaint paint; | 
 |     init_paint(&paint, bm); | 
 |  | 
 |     SkRect r = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }; | 
 |     r.offset(pos.fX, pos.fY); | 
 |  | 
 |     SkRRect rr; | 
 |     rr.setRectXY(r, SkIntToScalar(bm.width())/4, SkIntToScalar(bm.height())/4); | 
 |     canvas->drawRRect(rr, paint); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 | } | 
 |  | 
 | static void drawpath_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                           const SkBitmap& altBM, const SkPoint& pos, | 
 |                           SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkPaint paint; | 
 |     init_paint(&paint, bm); | 
 |  | 
 |     SkPath path; | 
 |     path.lineTo(bm.width()/2.0f, SkIntToScalar(bm.height())); | 
 |     path.lineTo(SkIntToScalar(bm.width()), 0); | 
 |     path.close(); | 
 |     path.offset(pos.fX, pos.fY); | 
 |  | 
 |     canvas->drawPath(path, paint); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 | } | 
 |  | 
 | static void drawbitmap_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                             const SkBitmap& altBM, const SkPoint& pos, | 
 |                             SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     canvas->drawBitmap(bm, pos.fX, pos.fY, NULL); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 | } | 
 |  | 
 | static void drawbitmap_withshader_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                                        const SkBitmap& altBM, const SkPoint& pos, | 
 |                                        SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkPaint paint; | 
 |     init_paint(&paint, bm); | 
 |  | 
 |     // The bitmap in the paint is ignored unless we're drawing an A8 bitmap | 
 |     canvas->drawBitmap(altBM, pos.fX, pos.fY, &paint); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 |     *usedPixRefs->append() = altBM.pixelRef(); | 
 | } | 
 |  | 
 | static void drawsprite_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                             const SkBitmap& altBM, const SkPoint& pos, | 
 |                             SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     const SkMatrix& ctm = canvas->getTotalMatrix(); | 
 |  | 
 |     SkPoint p(pos); | 
 |     ctm.mapPoints(&p, 1); | 
 |  | 
 |     canvas->drawSprite(bm, (int)p.fX, (int)p.fY, NULL); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 | } | 
 |  | 
 | #if 0 | 
 | // Although specifiable, this case doesn't seem to make sense (i.e., the | 
 | // bitmap in the shader is never used). | 
 | static void drawsprite_withshader_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                                        const SkBitmap& altBM, const SkPoint& pos, | 
 |                                        SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkPaint paint; | 
 |     init_paint(&paint, bm); | 
 |  | 
 |     const SkMatrix& ctm = canvas->getTotalMatrix(); | 
 |  | 
 |     SkPoint p(pos); | 
 |     ctm.mapPoints(&p, 1); | 
 |  | 
 |     canvas->drawSprite(altBM, (int)p.fX, (int)p.fY, &paint); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 |     *usedPixRefs->append() = altBM.pixelRef(); | 
 | } | 
 | #endif | 
 |  | 
 | static void drawbitmaprect_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                                 const SkBitmap& altBM, const SkPoint& pos, | 
 |                                 SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkRect r = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }; | 
 |  | 
 |     r.offset(pos.fX, pos.fY); | 
 |     canvas->drawBitmapRectToRect(bm, NULL, r, NULL); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 | } | 
 |  | 
 | static void drawbitmaprect_withshader_proc(SkCanvas* canvas, | 
 |                                            const SkBitmap& bm, | 
 |                                            const SkBitmap& altBM, | 
 |                                            const SkPoint& pos, | 
 |                                            SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkPaint paint; | 
 |     init_paint(&paint, bm); | 
 |  | 
 |     SkRect r = { 0, 0, SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }; | 
 |     r.offset(pos.fX, pos.fY); | 
 |  | 
 |     // The bitmap in the paint is ignored unless we're drawing an A8 bitmap | 
 |     canvas->drawBitmapRectToRect(altBM, NULL, r, &paint); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 |     *usedPixRefs->append() = altBM.pixelRef(); | 
 | } | 
 |  | 
 | static void drawtext_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                           const SkBitmap& altBM, const SkPoint& pos, | 
 |                           SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkPaint paint; | 
 |     init_paint(&paint, bm); | 
 |     paint.setTextSize(SkIntToScalar(1.5*bm.width())); | 
 |  | 
 |     canvas->drawText("0", 1, pos.fX, pos.fY+bm.width(), paint); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 | } | 
 |  | 
 | static void drawpostext_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                              const SkBitmap& altBM, const SkPoint& pos, | 
 |                              SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkPaint paint; | 
 |     init_paint(&paint, bm); | 
 |     paint.setTextSize(SkIntToScalar(1.5*bm.width())); | 
 |  | 
 |     SkPoint point = { pos.fX, pos.fY + bm.height() }; | 
 |     canvas->drawPosText("O", 1, &point, paint); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 | } | 
 |  | 
 | static void drawtextonpath_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                                 const SkBitmap& altBM, const SkPoint& pos, | 
 |                                 SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkPaint paint; | 
 |  | 
 |     init_paint(&paint, bm); | 
 |     paint.setTextSize(SkIntToScalar(1.5*bm.width())); | 
 |  | 
 |     SkPath path; | 
 |     path.lineTo(SkIntToScalar(bm.width()), 0); | 
 |     path.offset(pos.fX, pos.fY+bm.height()); | 
 |  | 
 |     canvas->drawTextOnPath("O", 1, path, NULL, paint); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 | } | 
 |  | 
 | static void drawverts_proc(SkCanvas* canvas, const SkBitmap& bm, | 
 |                            const SkBitmap& altBM, const SkPoint& pos, | 
 |                            SkTDArray<SkPixelRef*>* usedPixRefs) { | 
 |     SkPaint paint; | 
 |     init_paint(&paint, bm); | 
 |  | 
 |     SkPoint verts[4] = { | 
 |         { pos.fX, pos.fY }, | 
 |         { pos.fX + bm.width(), pos.fY }, | 
 |         { pos.fX + bm.width(), pos.fY + bm.height() }, | 
 |         { pos.fX, pos.fY + bm.height() } | 
 |     }; | 
 |     SkPoint texs[4] = { { 0, 0 }, | 
 |                         { SkIntToScalar(bm.width()), 0 }, | 
 |                         { SkIntToScalar(bm.width()), SkIntToScalar(bm.height()) }, | 
 |                         { 0, SkIntToScalar(bm.height()) } }; | 
 |     uint16_t indices[6] = { 0, 1, 2, 0, 2, 3 }; | 
 |  | 
 |     canvas->drawVertices(SkCanvas::kTriangles_VertexMode, 4, verts, texs, NULL, NULL, | 
 |                          indices, 6, paint); | 
 |     *usedPixRefs->append() = bm.pixelRef(); | 
 | } | 
 |  | 
 | // Return a picture with the bitmaps drawn at the specified positions. | 
 | static SkPicture* record_bitmaps(const SkBitmap bm[], | 
 |                                  const SkPoint pos[], | 
 |                                  SkTDArray<SkPixelRef*> analytic[], | 
 |                                  int count, | 
 |                                  DrawBitmapProc proc) { | 
 |     SkPicture* pic = new SkPicture; | 
 |     SkCanvas* canvas = pic->beginRecording(1000, 1000); | 
 |     for (int i = 0; i < count; ++i) { | 
 |         analytic[i].rewind(); | 
 |         canvas->save(); | 
 |         SkRect clipRect = SkRect::MakeXYWH(pos[i].fX, pos[i].fY, | 
 |                                            SkIntToScalar(bm[i].width()), | 
 |                                            SkIntToScalar(bm[i].height())); | 
 |         canvas->clipRect(clipRect, SkRegion::kIntersect_Op); | 
 |         proc(canvas, bm[i], bm[count+i], pos[i], &analytic[i]); | 
 |         canvas->restore(); | 
 |     } | 
 |     pic->endRecording(); | 
 |     return pic; | 
 | } | 
 |  | 
 | static void rand_rect(SkRect* rect, SkRandom& rand, SkScalar W, SkScalar H) { | 
 |     rect->fLeft   = rand.nextRangeScalar(-W, 2*W); | 
 |     rect->fTop    = rand.nextRangeScalar(-H, 2*H); | 
 |     rect->fRight  = rect->fLeft + rand.nextRangeScalar(0, W); | 
 |     rect->fBottom = rect->fTop + rand.nextRangeScalar(0, H); | 
 |  | 
 |     // we integralize rect to make our tests more predictable, since Gather is | 
 |     // a little sloppy. | 
 |     SkIRect ir; | 
 |     rect->round(&ir); | 
 |     rect->set(ir); | 
 | } | 
 |  | 
 | static void draw(SkPicture* pic, int width, int height, SkBitmap* result) { | 
 |     make_bm(result, width, height, SK_ColorBLACK, false); | 
 |  | 
 |     SkCanvas canvas(*result); | 
 |     canvas.drawPicture(*pic); | 
 | } | 
 |  | 
 | template <typename T> int find_index(const T* array, T elem, int count) { | 
 |     for (int i = 0; i < count; ++i) { | 
 |         if (array[i] == elem) { | 
 |             return i; | 
 |         } | 
 |     } | 
 |     return -1; | 
 | } | 
 |  | 
 | // Return true if 'ref' is found in array[] | 
 | static bool find(SkPixelRef const * const * array, SkPixelRef const * ref, int count) { | 
 |     return find_index<const SkPixelRef*>(array, ref, count) >= 0; | 
 | } | 
 |  | 
 | // Look at each pixel that is inside 'subset', and if its color appears in | 
 | // colors[], find the corresponding value in refs[] and append that ref into | 
 | // array, skipping duplicates of the same value. | 
 | // Note that gathering pixelRefs from rendered colors suffers from the problem | 
 | // that multiple simultaneous textures (e.g., A8 for alpha and 8888 for color) | 
 | // isn't easy to reconstruct. | 
 | static void gather_from_image(const SkBitmap& bm, SkPixelRef* const refs[], | 
 |                               int count, SkTDArray<SkPixelRef*>* array, | 
 |                               const SkRect& subset) { | 
 |     SkIRect ir; | 
 |     subset.roundOut(&ir); | 
 |  | 
 |     if (!ir.intersect(0, 0, bm.width()-1, bm.height()-1)) { | 
 |         return; | 
 |     } | 
 |  | 
 |     // Since we only want to return unique values in array, when we scan we just | 
 |     // set a bit for each index'd color found. In practice we only have a few | 
 |     // distinct colors, so we just use an int's bits as our array. Hence the | 
 |     // assert that count <= number-of-bits-in-our-int. | 
 |     SkASSERT((unsigned)count <= 32); | 
 |     uint32_t bitarray = 0; | 
 |  | 
 |     SkAutoLockPixels alp(bm); | 
 |  | 
 |     for (int y = ir.fTop; y < ir.fBottom; ++y) { | 
 |         for (int x = ir.fLeft; x < ir.fRight; ++x) { | 
 |             SkPMColor pmc = *bm.getAddr32(x, y); | 
 |             // the only good case where the color is not found would be if | 
 |             // the color is transparent, meaning no bitmap was drawn in that | 
 |             // pixel. | 
 |             if (pmc) { | 
 |                 uint32_t index = SkGetPackedR32(pmc); | 
 |                 SkASSERT(SkGetPackedG32(pmc) == index); | 
 |                 SkASSERT(SkGetPackedB32(pmc) == index); | 
 |                 if (0 == index) { | 
 |                     continue;           // background color | 
 |                 } | 
 |                 SkASSERT(0 == (index - gColorOffset) % gColorScale); | 
 |                 index = (index - gColorOffset) / gColorScale; | 
 |                 SkASSERT(static_cast<int>(index) < count); | 
 |                 bitarray |= 1 << index; | 
 |             } | 
 |         } | 
 |     } | 
 |  | 
 |     for (int i = 0; i < count; ++i) { | 
 |         if (bitarray & (1 << i)) { | 
 |             *array->append() = refs[i]; | 
 |         } | 
 |     } | 
 | } | 
 |  | 
 | static void gather_from_analytic(const SkPoint pos[], SkScalar w, SkScalar h, | 
 |                                  const SkTDArray<SkPixelRef*> analytic[], | 
 |                                  int count, | 
 |                                  SkTDArray<SkPixelRef*>* result, | 
 |                                  const SkRect& subset) { | 
 |     for (int i = 0; i < count; ++i) { | 
 |         SkRect rect = SkRect::MakeXYWH(pos[i].fX, pos[i].fY, w, h); | 
 |  | 
 |         if (SkRect::Intersects(subset, rect)) { | 
 |             result->append(analytic[i].count(), analytic[i].begin()); | 
 |         } | 
 |     } | 
 | } | 
 |  | 
 |  | 
 | static const struct { | 
 |     const DrawBitmapProc proc; | 
 |     const char* const desc; | 
 | } gProcs[] = { | 
 |     {drawpaint_proc, "drawpaint"}, | 
 |     {drawpoints_proc, "drawpoints"}, | 
 |     {drawrect_proc, "drawrect"}, | 
 |     {drawoval_proc, "drawoval"}, | 
 |     {drawrrect_proc, "drawrrect"}, | 
 |     {drawpath_proc, "drawpath"}, | 
 |     {drawbitmap_proc, "drawbitmap"}, | 
 |     {drawbitmap_withshader_proc, "drawbitmap_withshader"}, | 
 |     {drawsprite_proc, "drawsprite"}, | 
 | #if 0 | 
 |     {drawsprite_withshader_proc, "drawsprite_withshader"}, | 
 | #endif | 
 |     {drawbitmaprect_proc, "drawbitmaprect"}, | 
 |     {drawbitmaprect_withshader_proc, "drawbitmaprect_withshader"}, | 
 |     {drawtext_proc, "drawtext"}, | 
 |     {drawpostext_proc, "drawpostext"}, | 
 |     {drawtextonpath_proc, "drawtextonpath"}, | 
 |     {drawverts_proc, "drawverts"}, | 
 | }; | 
 |  | 
 | static void create_textures(SkBitmap* bm, SkPixelRef** refs, int num, int w, int h) { | 
 |     // Our convention is that the color components contain an encoding of | 
 |     // the index of their corresponding bitmap/pixelref. (0,0,0,0) is | 
 |     // reserved for the background | 
 |     for (int i = 0; i < num; ++i) { | 
 |         make_bm(&bm[i], w, h, | 
 |                 SkColorSetARGB(0xFF, | 
 |                                gColorScale*i+gColorOffset, | 
 |                                gColorScale*i+gColorOffset, | 
 |                                gColorScale*i+gColorOffset), | 
 |                 true); | 
 |         refs[i] = bm[i].pixelRef(); | 
 |     } | 
 |  | 
 |     // The A8 alternate bitmaps are all BW checkerboards | 
 |     for (int i = 0; i < num; ++i) { | 
 |         make_checkerboard(&bm[num+i], w, h, true); | 
 |         refs[num+i] = bm[num+i].pixelRef(); | 
 |     } | 
 | } | 
 |  | 
 | static void test_gatherpixelrefs(skiatest::Reporter* reporter) { | 
 |     const int IW = 32; | 
 |     const int IH = IW; | 
 |     const SkScalar W = SkIntToScalar(IW); | 
 |     const SkScalar H = W; | 
 |  | 
 |     static const int N = 4; | 
 |     SkBitmap bm[2*N]; | 
 |     SkPixelRef* refs[2*N]; | 
 |     SkTDArray<SkPixelRef*> analytic[N]; | 
 |  | 
 |     const SkPoint pos[N] = { | 
 |         { 0, 0 }, { W, 0 }, { 0, H }, { W, H } | 
 |     }; | 
 |  | 
 |     create_textures(bm, refs, N, IW, IH); | 
 |  | 
 |     SkRandom rand; | 
 |     for (size_t k = 0; k < SK_ARRAY_COUNT(gProcs); ++k) { | 
 |         SkAutoTUnref<SkPicture> pic( | 
 |             record_bitmaps(bm, pos, analytic, N, gProcs[k].proc)); | 
 |  | 
 |         REPORTER_ASSERT(reporter, pic->willPlayBackBitmaps() || N == 0); | 
 |         // quick check for a small piece of each quadrant, which should just | 
 |         // contain 1 or 2 bitmaps. | 
 |         for (size_t  i = 0; i < SK_ARRAY_COUNT(pos); ++i) { | 
 |             SkRect r; | 
 |             r.set(2, 2, W - 2, H - 2); | 
 |             r.offset(pos[i].fX, pos[i].fY); | 
 |             SkAutoDataUnref data(SkPictureUtils::GatherPixelRefs(pic, r)); | 
 |             if (!data) { | 
 |                 ERRORF(reporter, "SkPictureUtils::GatherPixelRefs returned " | 
 |                        "NULL for %s.", gProcs[k].desc); | 
 |                 continue; | 
 |             } | 
 |             SkPixelRef** gatheredRefs = (SkPixelRef**)data->data(); | 
 |             int count = static_cast<int>(data->size() / sizeof(SkPixelRef*)); | 
 |             REPORTER_ASSERT(reporter, 1 == count || 2 == count); | 
 |             if (1 == count) { | 
 |                 REPORTER_ASSERT(reporter, gatheredRefs[0] == refs[i]); | 
 |             } else if (2 == count) { | 
 |                 REPORTER_ASSERT(reporter, | 
 |                     (gatheredRefs[0] == refs[i] && gatheredRefs[1] == refs[i+N]) || | 
 |                     (gatheredRefs[1] == refs[i] && gatheredRefs[0] == refs[i+N])); | 
 |             } | 
 |         } | 
 |  | 
 |         SkBitmap image; | 
 |         draw(pic, 2*IW, 2*IH, &image); | 
 |  | 
 |         // Test a bunch of random (mostly) rects, and compare the gather results | 
 |         // with a deduced list of refs by looking at the colors drawn. | 
 |         for (int j = 0; j < 100; ++j) { | 
 |             SkRect r; | 
 |             rand_rect(&r, rand, 2*W, 2*H); | 
 |  | 
 |             SkTDArray<SkPixelRef*> fromImage; | 
 |             gather_from_image(image, refs, N, &fromImage, r); | 
 |  | 
 |             SkTDArray<SkPixelRef*> fromAnalytic; | 
 |             gather_from_analytic(pos, W, H, analytic, N, &fromAnalytic, r); | 
 |  | 
 |             SkData* data = SkPictureUtils::GatherPixelRefs(pic, r); | 
 |             size_t dataSize = data ? data->size() : 0; | 
 |             int gatherCount = static_cast<int>(dataSize / sizeof(SkPixelRef*)); | 
 |             SkASSERT(gatherCount * sizeof(SkPixelRef*) == dataSize); | 
 |             SkPixelRef** gatherRefs = data ? (SkPixelRef**)(data->data()) : NULL; | 
 |             SkAutoDataUnref adu(data); | 
 |  | 
 |             // Everything that we saw drawn should appear in the analytic list | 
 |             // but the analytic list may contain some pixelRefs that were not | 
 |             // seen in the image (e.g., A8 textures used as masks) | 
 |             for (int i = 0; i < fromImage.count(); ++i) { | 
 |                 if (-1 == fromAnalytic.find(fromImage[i])) { | 
 |                     ERRORF(reporter, "PixelRef missing %d %s", | 
 |                            i, gProcs[k].desc); | 
 |                 } | 
 |             } | 
 |  | 
 |             /* | 
 |              *  GatherPixelRefs is conservative, so it can return more bitmaps | 
 |              *  than are strictly required. Thus our check here is only that | 
 |              *  Gather didn't miss any that we actually needed. Even that isn't | 
 |              *  a strict requirement on Gather, which is meant to be quick and | 
 |              *  only mostly-correct, but at the moment this test should work. | 
 |              */ | 
 |             for (int i = 0; i < fromAnalytic.count(); ++i) { | 
 |                 bool found = find(gatherRefs, fromAnalytic[i], gatherCount); | 
 |                 if (!found) { | 
 |                     ERRORF(reporter, "PixelRef missing %d %s", | 
 |                            i, gProcs[k].desc); | 
 |                 } | 
 | #if 0 | 
 |                 // enable this block of code to debug failures, as it will rerun | 
 |                 // the case that failed. | 
 |                 if (!found) { | 
 |                     SkData* data = SkPictureUtils::GatherPixelRefs(pic, r); | 
 |                     size_t dataSize = data ? data->size() : 0; | 
 |                 } | 
 | #endif | 
 |             } | 
 |         } | 
 |     } | 
 | } | 
 |  | 
 | static void test_gatherpixelrefsandrects(skiatest::Reporter* reporter) { | 
 |     const int IW = 32; | 
 |     const int IH = IW; | 
 |     const SkScalar W = SkIntToScalar(IW); | 
 |     const SkScalar H = W; | 
 |  | 
 |     static const int N = 4; | 
 |     SkBitmap bm[2*N]; | 
 |     SkPixelRef* refs[2*N]; | 
 |     SkTDArray<SkPixelRef*> analytic[N]; | 
 |  | 
 |     const SkPoint pos[N] = { | 
 |         { 0, 0 }, { W, 0 }, { 0, H }, { W, H } | 
 |     }; | 
 |  | 
 |     create_textures(bm, refs, N, IW, IH); | 
 |  | 
 |     SkRandom rand; | 
 |     for (size_t k = 0; k < SK_ARRAY_COUNT(gProcs); ++k) { | 
 |         SkAutoTUnref<SkPicture> pic( | 
 |             record_bitmaps(bm, pos, analytic, N, gProcs[k].proc)); | 
 |  | 
 |         REPORTER_ASSERT(reporter, pic->willPlayBackBitmaps() || N == 0); | 
 |  | 
 |         SkAutoTUnref<SkPictureUtils::SkPixelRefContainer> prCont( | 
 |                                 new SkPictureUtils::SkPixelRefsAndRectsList); | 
 |  | 
 |         SkPictureUtils::GatherPixelRefsAndRects(pic, prCont); | 
 |  | 
 |         // quick check for a small piece of each quadrant, which should just | 
 |         // contain 1 or 2 bitmaps. | 
 |         for (size_t  i = 0; i < SK_ARRAY_COUNT(pos); ++i) { | 
 |             SkRect r; | 
 |             r.set(2, 2, W - 2, H - 2); | 
 |             r.offset(pos[i].fX, pos[i].fY); | 
 |  | 
 |             SkTDArray<SkPixelRef*> gatheredRefs; | 
 |             prCont->query(r, &gatheredRefs); | 
 |  | 
 |             int count = gatheredRefs.count(); | 
 |             REPORTER_ASSERT(reporter, 1 == count || 2 == count); | 
 |             if (1 == count) { | 
 |                 REPORTER_ASSERT(reporter, gatheredRefs[0] == refs[i]); | 
 |             } else if (2 == count) { | 
 |                 REPORTER_ASSERT(reporter, | 
 |                     (gatheredRefs[0] == refs[i] && gatheredRefs[1] == refs[i+N]) || | 
 |                     (gatheredRefs[1] == refs[i] && gatheredRefs[0] == refs[i+N])); | 
 |             } | 
 |         } | 
 |  | 
 |         SkBitmap image; | 
 |         draw(pic, 2*IW, 2*IH, &image); | 
 |  | 
 |         // Test a bunch of random (mostly) rects, and compare the gather results | 
 |         // with the analytic results and the pixel refs seen in a rendering. | 
 |         for (int j = 0; j < 100; ++j) { | 
 |             SkRect r; | 
 |             rand_rect(&r, rand, 2*W, 2*H); | 
 |  | 
 |             SkTDArray<SkPixelRef*> fromImage; | 
 |             gather_from_image(image, refs, N, &fromImage, r); | 
 |  | 
 |             SkTDArray<SkPixelRef*> fromAnalytic; | 
 |             gather_from_analytic(pos, W, H, analytic, N, &fromAnalytic, r); | 
 |  | 
 |             SkTDArray<SkPixelRef*> gatheredRefs; | 
 |             prCont->query(r, &gatheredRefs); | 
 |  | 
 |             // Everything that we saw drawn should appear in the analytic list | 
 |             // but the analytic list may contain some pixelRefs that were not | 
 |             // seen in the image (e.g., A8 textures used as masks) | 
 |             for (int i = 0; i < fromImage.count(); ++i) { | 
 |                 REPORTER_ASSERT(reporter, -1 != fromAnalytic.find(fromImage[i])); | 
 |             } | 
 |  | 
 |             // Everything in the analytic list should appear in the gathered | 
 |             // list. | 
 |             for (int i = 0; i < fromAnalytic.count(); ++i) { | 
 |                 REPORTER_ASSERT(reporter, -1 != gatheredRefs.find(fromAnalytic[i])); | 
 |             } | 
 |         } | 
 |     } | 
 | } | 
 |  | 
 | #ifdef SK_DEBUG | 
 | // Ensure that deleting SkPicturePlayback does not assert. Asserts only fire in debug mode, so only | 
 | // run in debug mode. | 
 | static void test_deleting_empty_playback() { | 
 |     SkPicture picture; | 
 |     // Creates an SkPictureRecord | 
 |     picture.beginRecording(0, 0); | 
 |     // Turns that into an SkPicturePlayback | 
 |     picture.endRecording(); | 
 |     // Deletes the old SkPicturePlayback, and creates a new SkPictureRecord | 
 |     picture.beginRecording(0, 0); | 
 | } | 
 |  | 
 | // Ensure that serializing an empty picture does not assert. Likewise only runs in debug mode. | 
 | static void test_serializing_empty_picture() { | 
 |     SkPicture picture; | 
 |     picture.beginRecording(0, 0); | 
 |     picture.endRecording(); | 
 |     SkDynamicMemoryWStream stream; | 
 |     picture.serialize(&stream); | 
 | } | 
 | #endif | 
 |  | 
 | static void rand_op(SkCanvas* canvas, SkRandom& rand) { | 
 |     SkPaint paint; | 
 |     SkRect rect = SkRect::MakeWH(50, 50); | 
 |  | 
 |     SkScalar unit = rand.nextUScalar1(); | 
 |     if (unit <= 0.3) { | 
 | //        SkDebugf("save\n"); | 
 |         canvas->save(); | 
 |     } else if (unit <= 0.6) { | 
 | //        SkDebugf("restore\n"); | 
 |         canvas->restore(); | 
 |     } else if (unit <= 0.9) { | 
 | //        SkDebugf("clip\n"); | 
 |         canvas->clipRect(rect); | 
 |     } else { | 
 | //        SkDebugf("draw\n"); | 
 |         canvas->drawPaint(paint); | 
 |     } | 
 | } | 
 |  | 
 | static void set_canvas_to_save_count_4(SkCanvas* canvas) { | 
 |     canvas->restoreToCount(1); | 
 |     canvas->save(); | 
 |     canvas->save(); | 
 |     canvas->save(); | 
 | } | 
 |  | 
 | static void test_unbalanced_save_restores(skiatest::Reporter* reporter) { | 
 |     SkCanvas testCanvas(100, 100); | 
 |     set_canvas_to_save_count_4(&testCanvas); | 
 |  | 
 |     REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount()); | 
 |  | 
 |     SkPaint paint; | 
 |     SkRect rect = SkRect::MakeLTRB(-10000000, -10000000, 10000000, 10000000); | 
 |  | 
 |     SkPicture extra_save_picture; | 
 |     extra_save_picture.beginRecording(100, 100); | 
 |     extra_save_picture.getRecordingCanvas()->save(); | 
 |     extra_save_picture.getRecordingCanvas()->translate(10, 10); | 
 |     extra_save_picture.getRecordingCanvas()->drawRect(rect, paint); | 
 |     extra_save_picture.getRecordingCanvas()->save(); | 
 |     extra_save_picture.getRecordingCanvas()->translate(10, 10); | 
 |     extra_save_picture.getRecordingCanvas()->drawRect(rect, paint); | 
 |  | 
 |     testCanvas.drawPicture(extra_save_picture); | 
 |     REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount()); | 
 |  | 
 |     set_canvas_to_save_count_4(&testCanvas); | 
 |  | 
 |     SkPicture extra_restore_picture; | 
 |     extra_restore_picture.beginRecording(100, 100); | 
 |     extra_restore_picture.getRecordingCanvas()->save(); | 
 |     extra_restore_picture.getRecordingCanvas()->translate(10, 10); | 
 |     extra_restore_picture.getRecordingCanvas()->drawRect(rect, paint); | 
 |     extra_restore_picture.getRecordingCanvas()->save(); | 
 |     extra_restore_picture.getRecordingCanvas()->translate(10, 10); | 
 |     extra_restore_picture.getRecordingCanvas()->drawRect(rect, paint); | 
 |     extra_restore_picture.getRecordingCanvas()->restore(); | 
 |     extra_restore_picture.getRecordingCanvas()->restore(); | 
 |     extra_restore_picture.getRecordingCanvas()->restore(); | 
 |     extra_restore_picture.getRecordingCanvas()->restore(); | 
 |  | 
 |     testCanvas.drawPicture(extra_save_picture); | 
 |     REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount()); | 
 |  | 
 |     SkPicture no_save_picture; | 
 |     extra_restore_picture.beginRecording(100, 100); | 
 |     extra_restore_picture.getRecordingCanvas()->translate(10, 10); | 
 |     extra_restore_picture.getRecordingCanvas()->drawRect(rect, paint); | 
 |  | 
 |     testCanvas.drawPicture(extra_save_picture); | 
 |     REPORTER_ASSERT(reporter, 4 == testCanvas.getSaveCount()); | 
 |     REPORTER_ASSERT(reporter, testCanvas.getTotalMatrix().isIdentity()); | 
 | } | 
 |  | 
 | static void test_peephole() { | 
 |     SkRandom rand; | 
 |  | 
 |     for (int j = 0; j < 100; j++) { | 
 |         SkRandom rand2(rand); // remember the seed | 
 |  | 
 |         SkPicture picture; | 
 |         SkCanvas* canvas = picture.beginRecording(100, 100); | 
 |  | 
 |         for (int i = 0; i < 1000; ++i) { | 
 |             rand_op(canvas, rand); | 
 |         } | 
 |         picture.endRecording(); | 
 |  | 
 |         rand = rand2; | 
 |     } | 
 |  | 
 |     { | 
 |         SkPicture picture; | 
 |         SkCanvas* canvas = picture.beginRecording(100, 100); | 
 |         SkRect rect = SkRect::MakeWH(50, 50); | 
 |  | 
 |         for (int i = 0; i < 100; ++i) { | 
 |             canvas->save(); | 
 |         } | 
 |         while (canvas->getSaveCount() > 1) { | 
 |             canvas->clipRect(rect); | 
 |             canvas->restore(); | 
 |         } | 
 |         picture.endRecording(); | 
 |     } | 
 | } | 
 |  | 
 | #ifndef SK_DEBUG | 
 | // Only test this is in release mode. We deliberately crash in debug mode, since a valid caller | 
 | // should never do this. | 
 | static void test_bad_bitmap() { | 
 |     // This bitmap has a width and height but no pixels. As a result, attempting to record it will | 
 |     // fail. | 
 |     SkBitmap bm; | 
 |     bm.setConfig(SkImageInfo::MakeN32Premul(100, 100)); | 
 |     SkPicture picture; | 
 |     SkCanvas* recordingCanvas = picture.beginRecording(100, 100); | 
 |     recordingCanvas->drawBitmap(bm, 0, 0); | 
 |     picture.endRecording(); | 
 |  | 
 |     SkCanvas canvas; | 
 |     canvas.drawPicture(picture); | 
 | } | 
 | #endif | 
 |  | 
 | static SkData* encode_bitmap_to_data(size_t*, const SkBitmap& bm) { | 
 |     return SkImageEncoder::EncodeData(bm, SkImageEncoder::kPNG_Type, 100); | 
 | } | 
 |  | 
 | static SkData* serialized_picture_from_bitmap(const SkBitmap& bitmap) { | 
 |     SkPicture picture; | 
 |     SkCanvas* canvas = picture.beginRecording(bitmap.width(), bitmap.height()); | 
 |     canvas->drawBitmap(bitmap, 0, 0); | 
 |     SkDynamicMemoryWStream wStream; | 
 |     picture.serialize(&wStream, &encode_bitmap_to_data); | 
 |     return wStream.copyToData(); | 
 | } | 
 |  | 
 | struct ErrorContext { | 
 |     int fErrors; | 
 |     skiatest::Reporter* fReporter; | 
 | }; | 
 |  | 
 | static void assert_one_parse_error_cb(SkError error, void* context) { | 
 |     ErrorContext* errorContext = static_cast<ErrorContext*>(context); | 
 |     errorContext->fErrors++; | 
 |     // This test only expects one error, and that is a kParseError. If there are others, | 
 |     // there is some unknown problem. | 
 |     REPORTER_ASSERT_MESSAGE(errorContext->fReporter, 1 == errorContext->fErrors, | 
 |                             "This threw more errors than expected."); | 
 |     REPORTER_ASSERT_MESSAGE(errorContext->fReporter, kParseError_SkError == error, | 
 |                             SkGetLastErrorString()); | 
 | } | 
 |  | 
 | static void test_bitmap_with_encoded_data(skiatest::Reporter* reporter) { | 
 |     // Create a bitmap that will be encoded. | 
 |     SkBitmap original; | 
 |     make_bm(&original, 100, 100, SK_ColorBLUE, true); | 
 |     SkDynamicMemoryWStream wStream; | 
 |     if (!SkImageEncoder::EncodeStream(&wStream, original, SkImageEncoder::kPNG_Type, 100)) { | 
 |         return; | 
 |     } | 
 |     SkAutoDataUnref data(wStream.copyToData()); | 
 |  | 
 |     SkBitmap bm; | 
 |     bool installSuccess = SkInstallDiscardablePixelRef( | 
 |          SkDecodingImageGenerator::Create(data, SkDecodingImageGenerator::Options()), &bm, NULL); | 
 |     REPORTER_ASSERT(reporter, installSuccess); | 
 |  | 
 |     // Write both bitmaps to pictures, and ensure that the resulting data streams are the same. | 
 |     // Flattening original will follow the old path of performing an encode, while flattening bm | 
 |     // will use the already encoded data. | 
 |     SkAutoDataUnref picture1(serialized_picture_from_bitmap(original)); | 
 |     SkAutoDataUnref picture2(serialized_picture_from_bitmap(bm)); | 
 |     REPORTER_ASSERT(reporter, picture1->equals(picture2)); | 
 |     // Now test that a parse error was generated when trying to create a new SkPicture without | 
 |     // providing a function to decode the bitmap. | 
 |     ErrorContext context; | 
 |     context.fErrors = 0; | 
 |     context.fReporter = reporter; | 
 |     SkSetErrorCallback(assert_one_parse_error_cb, &context); | 
 |     SkMemoryStream pictureStream(picture1); | 
 |     SkClearLastError(); | 
 |     SkAutoUnref pictureFromStream(SkPicture::CreateFromStream(&pictureStream, NULL)); | 
 |     REPORTER_ASSERT(reporter, pictureFromStream.get() != NULL); | 
 |     SkClearLastError(); | 
 |     SkSetErrorCallback(NULL, NULL); | 
 | } | 
 |  | 
 | static void test_clone_empty(skiatest::Reporter* reporter) { | 
 |     // This is a regression test for crbug.com/172062 | 
 |     // Before the fix, we used to crash accessing a null pointer when we | 
 |     // had a picture with no paints. This test passes by not crashing. | 
 |     { | 
 |         SkPicture picture; | 
 |         picture.beginRecording(1, 1); | 
 |         picture.endRecording(); | 
 |         SkPicture* destPicture = picture.clone(); | 
 |         REPORTER_ASSERT(reporter, NULL != destPicture); | 
 |         destPicture->unref(); | 
 |     } | 
 |     { | 
 |         // Test without call to endRecording | 
 |         SkPicture picture; | 
 |         picture.beginRecording(1, 1); | 
 |         SkPicture* destPicture = picture.clone(); | 
 |         REPORTER_ASSERT(reporter, NULL != destPicture); | 
 |         destPicture->unref(); | 
 |     } | 
 | } | 
 |  | 
 | static void test_draw_empty(skiatest::Reporter* reporter) { | 
 |     SkBitmap result; | 
 |     make_bm(&result, 2, 2, SK_ColorBLACK, false); | 
 |  | 
 |     SkCanvas canvas(result); | 
 |  | 
 |     { | 
 |         // stock SkPicture | 
 |         SkPicture picture; | 
 |         picture.beginRecording(1, 1); | 
 |         picture.endRecording(); | 
 |  | 
 |         canvas.drawPicture(picture); | 
 |     } | 
 |  | 
 |     { | 
 |         // tile grid | 
 |         SkTileGridPicture::TileGridInfo gridInfo; | 
 |         gridInfo.fMargin.setEmpty(); | 
 |         gridInfo.fOffset.setZero(); | 
 |         gridInfo.fTileInterval.set(1, 1); | 
 |  | 
 |         SkTileGridPicture picture(1, 1, gridInfo); | 
 |         picture.beginRecording(1, 1, SkPicture::kOptimizeForClippedPlayback_RecordingFlag); | 
 |         picture.endRecording(); | 
 |  | 
 |         canvas.drawPicture(picture); | 
 |     } | 
 |  | 
 |     { | 
 |         // RTree | 
 |         SkPicture picture; | 
 |         picture.beginRecording(1, 1, SkPicture::kOptimizeForClippedPlayback_RecordingFlag); | 
 |         picture.endRecording(); | 
 |  | 
 |         canvas.drawPicture(picture); | 
 |     } | 
 |  | 
 |     { | 
 |         // quad tree | 
 |         SkQuadTreePicture picture(SkIRect::MakeWH(1, 1)); | 
 |         picture.beginRecording(1, 1, SkPicture::kOptimizeForClippedPlayback_RecordingFlag); | 
 |         picture.endRecording(); | 
 |  | 
 |         canvas.drawPicture(picture); | 
 |     } | 
 | } | 
 |  | 
 | static void test_clip_bound_opt(skiatest::Reporter* reporter) { | 
 |     // Test for crbug.com/229011 | 
 |     SkRect rect1 = SkRect::MakeXYWH(SkIntToScalar(4), SkIntToScalar(4), | 
 |                                     SkIntToScalar(2), SkIntToScalar(2)); | 
 |     SkRect rect2 = SkRect::MakeXYWH(SkIntToScalar(7), SkIntToScalar(7), | 
 |                                     SkIntToScalar(1), SkIntToScalar(1)); | 
 |     SkRect rect3 = SkRect::MakeXYWH(SkIntToScalar(6), SkIntToScalar(6), | 
 |                                     SkIntToScalar(1), SkIntToScalar(1)); | 
 |  | 
 |     SkPath invPath; | 
 |     invPath.addOval(rect1); | 
 |     invPath.setFillType(SkPath::kInverseEvenOdd_FillType); | 
 |     SkPath path; | 
 |     path.addOval(rect2); | 
 |     SkPath path2; | 
 |     path2.addOval(rect3); | 
 |     SkIRect clipBounds; | 
 |     // Minimalist test set for 100% code coverage of | 
 |     // SkPictureRecord::updateClipConservativelyUsingBounds | 
 |     { | 
 |         SkPicture picture; | 
 |         SkCanvas* canvas = picture.beginRecording(10, 10, | 
 |             SkPicture::kUsePathBoundsForClip_RecordingFlag); | 
 |         canvas->clipPath(invPath, SkRegion::kIntersect_Op); | 
 |         bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds); | 
 |         REPORTER_ASSERT(reporter, true == nonEmpty); | 
 |         REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft); | 
 |         REPORTER_ASSERT(reporter, 0 == clipBounds.fTop); | 
 |         REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom); | 
 |         REPORTER_ASSERT(reporter, 10 == clipBounds.fRight); | 
 |     } | 
 |     { | 
 |         SkPicture picture; | 
 |         SkCanvas* canvas = picture.beginRecording(10, 10, | 
 |             SkPicture::kUsePathBoundsForClip_RecordingFlag); | 
 |         canvas->clipPath(path, SkRegion::kIntersect_Op); | 
 |         canvas->clipPath(invPath, SkRegion::kIntersect_Op); | 
 |         bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds); | 
 |         REPORTER_ASSERT(reporter, true == nonEmpty); | 
 |         REPORTER_ASSERT(reporter, 7 == clipBounds.fLeft); | 
 |         REPORTER_ASSERT(reporter, 7 == clipBounds.fTop); | 
 |         REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom); | 
 |         REPORTER_ASSERT(reporter, 8 == clipBounds.fRight); | 
 |     } | 
 |     { | 
 |         SkPicture picture; | 
 |         SkCanvas* canvas = picture.beginRecording(10, 10, | 
 |             SkPicture::kUsePathBoundsForClip_RecordingFlag); | 
 |         canvas->clipPath(path, SkRegion::kIntersect_Op); | 
 |         canvas->clipPath(invPath, SkRegion::kUnion_Op); | 
 |         bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds); | 
 |         REPORTER_ASSERT(reporter, true == nonEmpty); | 
 |         REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft); | 
 |         REPORTER_ASSERT(reporter, 0 == clipBounds.fTop); | 
 |         REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom); | 
 |         REPORTER_ASSERT(reporter, 10 == clipBounds.fRight); | 
 |     } | 
 |     { | 
 |         SkPicture picture; | 
 |         SkCanvas* canvas = picture.beginRecording(10, 10, | 
 |             SkPicture::kUsePathBoundsForClip_RecordingFlag); | 
 |         canvas->clipPath(path, SkRegion::kDifference_Op); | 
 |         bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds); | 
 |         REPORTER_ASSERT(reporter, true == nonEmpty); | 
 |         REPORTER_ASSERT(reporter, 0 == clipBounds.fLeft); | 
 |         REPORTER_ASSERT(reporter, 0 == clipBounds.fTop); | 
 |         REPORTER_ASSERT(reporter, 10 == clipBounds.fBottom); | 
 |         REPORTER_ASSERT(reporter, 10 == clipBounds.fRight); | 
 |     } | 
 |     { | 
 |         SkPicture picture; | 
 |         SkCanvas* canvas = picture.beginRecording(10, 10, | 
 |             SkPicture::kUsePathBoundsForClip_RecordingFlag); | 
 |         canvas->clipPath(path, SkRegion::kReverseDifference_Op); | 
 |         bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds); | 
 |         // True clip is actually empty in this case, but the best | 
 |         // determination we can make using only bounds as input is that the | 
 |         // clip is included in the bounds of 'path'. | 
 |         REPORTER_ASSERT(reporter, true == nonEmpty); | 
 |         REPORTER_ASSERT(reporter, 7 == clipBounds.fLeft); | 
 |         REPORTER_ASSERT(reporter, 7 == clipBounds.fTop); | 
 |         REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom); | 
 |         REPORTER_ASSERT(reporter, 8 == clipBounds.fRight); | 
 |     } | 
 |     { | 
 |         SkPicture picture; | 
 |         SkCanvas* canvas = picture.beginRecording(10, 10, | 
 |             SkPicture::kUsePathBoundsForClip_RecordingFlag); | 
 |         canvas->clipPath(path, SkRegion::kIntersect_Op); | 
 |         canvas->clipPath(path2, SkRegion::kXOR_Op); | 
 |         bool nonEmpty = canvas->getClipDeviceBounds(&clipBounds); | 
 |         REPORTER_ASSERT(reporter, true == nonEmpty); | 
 |         REPORTER_ASSERT(reporter, 6 == clipBounds.fLeft); | 
 |         REPORTER_ASSERT(reporter, 6 == clipBounds.fTop); | 
 |         REPORTER_ASSERT(reporter, 8 == clipBounds.fBottom); | 
 |         REPORTER_ASSERT(reporter, 8 == clipBounds.fRight); | 
 |     } | 
 | } | 
 |  | 
 | /** | 
 |  * A canvas that records the number of clip commands. | 
 |  */ | 
 | class ClipCountingCanvas : public SkCanvas { | 
 | public: | 
 |     explicit ClipCountingCanvas(int width, int height) | 
 |         : INHERITED(width, height) | 
 |         , fClipCount(0){ | 
 |     } | 
 |  | 
 |     virtual void onClipRect(const SkRect& r, | 
 |                             SkRegion::Op op, | 
 |                             ClipEdgeStyle edgeStyle) SK_OVERRIDE { | 
 |         fClipCount += 1; | 
 |         this->INHERITED::onClipRect(r, op, edgeStyle); | 
 |     } | 
 |  | 
 |     virtual void onClipRRect(const SkRRect& rrect, | 
 |                              SkRegion::Op op, | 
 |                              ClipEdgeStyle edgeStyle)SK_OVERRIDE { | 
 |         fClipCount += 1; | 
 |         this->INHERITED::onClipRRect(rrect, op, edgeStyle); | 
 |     } | 
 |  | 
 |     virtual void onClipPath(const SkPath& path, | 
 |                             SkRegion::Op op, | 
 |                             ClipEdgeStyle edgeStyle) SK_OVERRIDE { | 
 |         fClipCount += 1; | 
 |         this->INHERITED::onClipPath(path, op, edgeStyle); | 
 |     } | 
 |  | 
 |     virtual void onClipRegion(const SkRegion& deviceRgn, SkRegion::Op op) SK_OVERRIDE { | 
 |         fClipCount += 1; | 
 |         this->INHERITED::onClipRegion(deviceRgn, op); | 
 |     } | 
 |  | 
 |     unsigned getClipCount() const { return fClipCount; } | 
 |  | 
 | private: | 
 |     unsigned fClipCount; | 
 |  | 
 |     typedef SkCanvas INHERITED; | 
 | }; | 
 |  | 
 | static void test_clip_expansion(skiatest::Reporter* reporter) { | 
 |     SkPicture picture; | 
 |     SkCanvas* canvas = picture.beginRecording(10, 10, 0); | 
 |  | 
 |     canvas->clipRect(SkRect::MakeEmpty(), SkRegion::kReplace_Op); | 
 |     // The following expanding clip should not be skipped. | 
 |     canvas->clipRect(SkRect::MakeXYWH(4, 4, 3, 3), SkRegion::kUnion_Op); | 
 |     // Draw something so the optimizer doesn't just fold the world. | 
 |     SkPaint p; | 
 |     p.setColor(SK_ColorBLUE); | 
 |     canvas->drawPaint(p); | 
 |  | 
 |     ClipCountingCanvas testCanvas(10, 10); | 
 |     picture.draw(&testCanvas); | 
 |  | 
 |     // Both clips should be present on playback. | 
 |     REPORTER_ASSERT(reporter, testCanvas.getClipCount() == 2); | 
 | } | 
 |  | 
 | static void test_hierarchical(skiatest::Reporter* reporter) { | 
 |     SkBitmap bm; | 
 |     make_bm(&bm, 10, 10, SK_ColorRED, true); | 
 |  | 
 |     SkCanvas* canvas; | 
 |  | 
 |     SkPicture childPlain; | 
 |     childPlain.beginRecording(10, 10); | 
 |     childPlain.endRecording(); | 
 |     REPORTER_ASSERT(reporter, !childPlain.willPlayBackBitmaps()); // 0 | 
 |  | 
 |     SkPicture childWithBitmap; | 
 |     childWithBitmap.beginRecording(10, 10)->drawBitmap(bm, 0, 0); | 
 |     childWithBitmap.endRecording(); | 
 |     REPORTER_ASSERT(reporter, childWithBitmap.willPlayBackBitmaps()); // 1 | 
 |  | 
 |     SkPicture parentPP; | 
 |     canvas = parentPP.beginRecording(10, 10); | 
 |     canvas->drawPicture(childPlain); | 
 |     parentPP.endRecording(); | 
 |     REPORTER_ASSERT(reporter, !parentPP.willPlayBackBitmaps()); // 0 | 
 |  | 
 |     SkPicture parentPWB; | 
 |     canvas = parentPWB.beginRecording(10, 10); | 
 |     canvas->drawPicture(childWithBitmap); | 
 |     parentPWB.endRecording(); | 
 |     REPORTER_ASSERT(reporter, parentPWB.willPlayBackBitmaps()); // 1 | 
 |  | 
 |     SkPicture parentWBP; | 
 |     canvas = parentWBP.beginRecording(10, 10); | 
 |     canvas->drawBitmap(bm, 0, 0); | 
 |     canvas->drawPicture(childPlain); | 
 |     parentWBP.endRecording(); | 
 |     REPORTER_ASSERT(reporter, parentWBP.willPlayBackBitmaps()); // 1 | 
 |  | 
 |     SkPicture parentWBWB; | 
 |     canvas = parentWBWB.beginRecording(10, 10); | 
 |     canvas->drawBitmap(bm, 0, 0); | 
 |     canvas->drawPicture(childWithBitmap); | 
 |     parentWBWB.endRecording(); | 
 |     REPORTER_ASSERT(reporter, parentWBWB.willPlayBackBitmaps()); // 2 | 
 | } | 
 |  | 
 | static void test_gen_id(skiatest::Reporter* reporter) { | 
 |  | 
 |     SkPicture hasData, empty, midRecord; | 
 |  | 
 |     uint32_t beforeID = hasData.uniqueID(); | 
 |     REPORTER_ASSERT(reporter, SK_InvalidGenID != beforeID); | 
 |  | 
 |     // all 3 pictures should have different ids | 
 |     REPORTER_ASSERT(reporter, beforeID != empty.uniqueID()); | 
 |     REPORTER_ASSERT(reporter, beforeID != midRecord.uniqueID()); | 
 |     REPORTER_ASSERT(reporter, empty.uniqueID() != midRecord.uniqueID()); | 
 |  | 
 |     hasData.beginRecording(1, 1); | 
 |     // gen ID should be invalid mid-record | 
 |     REPORTER_ASSERT(reporter, SK_InvalidGenID == hasData.uniqueID()); | 
 |     hasData.endRecording(); | 
 |     // picture should get a new (non-zero) id after recording | 
 |     REPORTER_ASSERT(reporter, hasData.uniqueID() != beforeID); | 
 |     REPORTER_ASSERT(reporter, hasData.uniqueID() != SK_InvalidGenID); | 
 |  | 
 |     midRecord.beginRecording(1, 1); | 
 |     REPORTER_ASSERT(reporter, SK_InvalidGenID == midRecord.uniqueID()); | 
 |  | 
 |     // test out copy constructor | 
 |     SkPicture copyWithData(hasData); | 
 |     REPORTER_ASSERT(reporter, hasData.uniqueID() == copyWithData.uniqueID()); | 
 |  | 
 |     SkPicture emptyCopy(empty); | 
 |     REPORTER_ASSERT(reporter, empty.uniqueID() != emptyCopy.uniqueID()); | 
 |  | 
 |     SkPicture copyMidRecord(midRecord); | 
 |     REPORTER_ASSERT(reporter, midRecord.uniqueID() != copyMidRecord.uniqueID()); | 
 |     REPORTER_ASSERT(reporter, copyMidRecord.uniqueID() != SK_InvalidGenID); | 
 |  | 
 |     // test out swap | 
 |     beforeID = copyMidRecord.uniqueID(); | 
 |     copyWithData.swap(copyMidRecord); | 
 |     REPORTER_ASSERT(reporter, copyWithData.uniqueID() == beforeID); | 
 |     REPORTER_ASSERT(reporter, copyMidRecord.uniqueID() == hasData.uniqueID()); | 
 |  | 
 |     // test out clone | 
 |     SkAutoTUnref<SkPicture> cloneWithData(hasData.clone()); | 
 |     REPORTER_ASSERT(reporter, hasData.uniqueID() == cloneWithData->uniqueID()); | 
 |  | 
 |     SkAutoTUnref<SkPicture> emptyClone(empty.clone()); | 
 |     REPORTER_ASSERT(reporter, empty.uniqueID() != emptyClone->uniqueID()); | 
 |  | 
 |     SkAutoTUnref<SkPicture> cloneMidRecord(midRecord.clone()); | 
 |     REPORTER_ASSERT(reporter, midRecord.uniqueID() != cloneMidRecord->uniqueID()); | 
 |     REPORTER_ASSERT(reporter, cloneMidRecord->uniqueID() != SK_InvalidGenID); | 
 | } | 
 |  | 
 | DEF_TEST(Picture, reporter) { | 
 | #ifdef SK_DEBUG | 
 |     test_deleting_empty_playback(); | 
 |     test_serializing_empty_picture(); | 
 | #else | 
 |     test_bad_bitmap(); | 
 | #endif | 
 |     test_unbalanced_save_restores(reporter); | 
 |     test_peephole(); | 
 |     test_gatherpixelrefs(reporter); | 
 |     test_gatherpixelrefsandrects(reporter); | 
 |     test_bitmap_with_encoded_data(reporter); | 
 |     test_clone_empty(reporter); | 
 |     test_draw_empty(reporter); | 
 |     test_clip_bound_opt(reporter); | 
 |     test_clip_expansion(reporter); | 
 |     test_hierarchical(reporter); | 
 |     test_gen_id(reporter); | 
 | } | 
 |  | 
 | static void draw_bitmaps(const SkBitmap bitmap, SkCanvas* canvas) { | 
 |     const SkPaint paint; | 
 |     const SkRect rect = { 5.0f, 5.0f, 8.0f, 8.0f }; | 
 |     const SkIRect irect =  { 2, 2, 3, 3 }; | 
 |  | 
 |     // Don't care what these record, as long as they're legal. | 
 |     canvas->drawBitmap(bitmap, 0.0f, 0.0f, &paint); | 
 |     canvas->drawBitmapRectToRect(bitmap, &rect, rect, &paint, SkCanvas::kNone_DrawBitmapRectFlag); | 
 |     canvas->drawBitmapMatrix(bitmap, SkMatrix::I(), &paint); | 
 |     canvas->drawBitmapNine(bitmap, irect, rect, &paint); | 
 |     canvas->drawSprite(bitmap, 1, 1); | 
 | } | 
 |  | 
 | static void test_draw_bitmaps(SkCanvas* canvas) { | 
 |     SkBitmap empty; | 
 |     draw_bitmaps(empty, canvas); | 
 |     empty.setConfig(SkImageInfo::MakeN32Premul(10, 10)); | 
 |     draw_bitmaps(empty, canvas); | 
 | } | 
 |  | 
 | DEF_TEST(Picture_EmptyBitmap, r) { | 
 |     SkPicture picture; | 
 |     test_draw_bitmaps(picture.beginRecording(10, 10)); | 
 |     picture.endRecording(); | 
 | } | 
 |  | 
 | DEF_TEST(Canvas_EmptyBitmap, r) { | 
 |     SkBitmap dst; | 
 |     dst.allocN32Pixels(10, 10); | 
 |     SkCanvas canvas(dst); | 
 |  | 
 |     test_draw_bitmaps(&canvas); | 
 | } |