SkRect FindCanvas::addMatchPos(int index,
const SkPaint& paint, int count, const uint16_t* glyphs,
const SkScalar xPos[], SkScalar /* y */) {
SkRect r;
r.setEmpty();
const SkPoint* temp = reinterpret_cast<const SkPoint*> (xPos);
const SkPoint* points = &temp[index];
int countInBytes = count * sizeof(uint16_t);
SkPaint::FontMetrics fontMetrics;
paint.getFontMetrics(&fontMetrics);
// Need to check each character individually, since the heights may be
// different.
for (int j = 0; j < count; j++) {
SkRect bounds;
bounds.fLeft = points[j].fX;
bounds.fRight = bounds.fLeft +
paint.measureText(&glyphs[j], sizeof(uint16_t), 0);
SkScalar baseline = points[j].fY;
bounds.fTop = baseline + fontMetrics.fAscent;
bounds.fBottom = baseline + fontMetrics.fDescent;
/* Accumulate and then add the resulting rect to mMatches */
r.join(bounds);
}
SkMatrix matrix = getTotalMatrix();
matrix.mapRect(&r);
SkCanvas* canvas = getWorkingCanvas();
int saveCount = canvas->save();
canvas->concat(matrix);
canvas->drawPosText(glyphs, countInBytes, points, paint);
canvas->restoreToCount(saveCount);
return r;
}
void GpuGMTask::draw(GrContextFactory* grFactory) {
SkImageInfo info = SkImageInfo::Make(SkScalarCeilToInt(fGM->width()),
SkScalarCeilToInt(fGM->height()),
kN32_SkColorType,
kPremul_SkAlphaType);
SkAutoTUnref<SkSurface> surface(NewGpuSurface(grFactory, fContextType, fGpuAPI, info,
fSampleCount));
if (!surface) {
if (!gAlreadyWarned[fContextType][fGpuAPI]) {
SkDebugf("FYI: couldn't create GPU context, type %d API %d. Will skip.\n",
fContextType, fGpuAPI);
gAlreadyWarned[fContextType][fGpuAPI] = true;
}
return;
}
SkCanvas* canvas = surface->getCanvas();
CanvasPreflight(canvas);
canvas->concat(fGM->getInitialTransform());
fGM->draw(canvas);
canvas->flush();
#if GR_CACHE_STATS && SK_SUPPORT_GPU
if (FLAGS_veryVerbose) {
grFactory->get(fContextType)->printCacheStats();
}
#endif
SkBitmap bitmap;
bitmap.setInfo(info);
canvas->readPixels(&bitmap, 0, 0);
this->spawnChild(SkNEW_ARGS(WriteTask, (*this, "GM", bitmap)));
}
SkRect FindCanvas::addMatchPosH(int index,
const SkPaint& paint, int count, const uint16_t* glyphs,
const SkScalar position[], SkScalar constY) {
SkRect r;
// We only care about the positions starting at the index of our match
const SkScalar* xPos = &position[index];
// This assumes that the position array is monotonic increasing
// The left bounds will be the position of the left most character
r.fLeft = xPos[0];
// The right bounds will be the position of the last character plus its
// width
int lastIndex = count - 1;
r.fRight = paint.measureText(&glyphs[lastIndex], sizeof(uint16_t), 0)
+ xPos[lastIndex];
// Grab font metrics to determine the top and bottom of the bounds
SkPaint::FontMetrics fontMetrics;
paint.getFontMetrics(&fontMetrics);
r.fTop = constY + fontMetrics.fAscent;
r.fBottom = constY + fontMetrics.fDescent;
const SkMatrix& matrix = getTotalMatrix();
matrix.mapRect(&r);
SkCanvas* canvas = getWorkingCanvas();
int saveCount = canvas->save();
canvas->concat(matrix);
canvas->drawPosTextH(glyphs, count * sizeof(uint16_t), xPos, constY, paint);
canvas->restoreToCount(saveCount);
return r;
}
static void render_picture(GrContext* grContext,
int width,
int height,
const SkPicture* picture,
const SkMatrix& matrix) {
SkASSERT(grContext);
if (!picture) {
SkDebugf(TAG "!picture\n");
return;
}
// Render to the default framebuffer render target.
GrBackendRenderTargetDesc desc;
desc.fWidth = width;
desc.fHeight = height;
desc.fConfig = kSkia8888_GrPixelConfig;
desc.fOrigin = kBottomLeft_GrSurfaceOrigin;
SkSurfaceProps surfaceProps(SkSurfaceProps::kUseDeviceIndependentFonts_Flag,
kUnknown_SkPixelGeometry);
// TODO: Check to see if we can keep the surface between draw calls.
SkAutoTUnref<SkSurface> surface(
SkSurface::NewFromBackendRenderTarget(
grContext, desc, &surfaceProps));
if (surface) {
SkCanvas* canvas = surface->getCanvas();
SkASSERT(canvas);
canvas->clear(SK_ColorGRAY);
canvas->concat(matrix);
SkRect cullRect = picture->cullRect();
canvas->clipRect(cullRect);
picture->playback(canvas);
canvas->flush();
}
}
static void test_discarded_image(skiatest::Reporter* reporter, const SkMatrix& transform,
sk_sp<SkImage> (*buildImage)()) {
auto surface(SkSurface::MakeRasterN32Premul(10, 10));
SkCanvas* canvas = surface->getCanvas();
// SkBitmapCache is global, so other threads could be evicting our bitmaps. Loop a few times
// to mitigate this risk.
const unsigned kRepeatCount = 42;
for (unsigned i = 0; i < kRepeatCount; ++i) {
SkAutoCanvasRestore acr(canvas, true);
sk_sp<SkImage> image(buildImage());
// always use high quality to ensure caching when scaled
SkPaint paint;
paint.setFilterQuality(kHigh_SkFilterQuality);
// draw the image (with a transform, to tickle different code paths) to ensure
// any associated resources get cached
canvas->concat(transform);
canvas->drawImage(image, 0, 0, &paint);
const auto desc = SkBitmapCacheDesc::Make(image.get());
// delete the image
image.reset(nullptr);
// all resources should have been purged
SkBitmap result;
REPORTER_ASSERT(reporter, !SkBitmapCache::Find(desc, &result));
}
}
// Each version of addMatch returns a rectangle for a match.
// Not all of the parameters are used by each version.
SkRect FindCanvas::addMatchNormal(int index,
const SkPaint& paint, int count, const uint16_t* glyphs,
const SkScalar pos[], SkScalar y) {
const uint16_t* lineStart = glyphs - index;
/* Use the original paint, since "text" is in glyphs */
SkScalar before = paint.measureText(lineStart, index * sizeof(uint16_t), 0);
SkRect rect;
rect.fLeft = pos[0] + before;
int countInBytes = count * sizeof(uint16_t);
rect.fRight = paint.measureText(glyphs, countInBytes, 0) + rect.fLeft;
SkPaint::FontMetrics fontMetrics;
paint.getFontMetrics(&fontMetrics);
SkScalar baseline = y;
rect.fTop = baseline + fontMetrics.fAscent;
rect.fBottom = baseline + fontMetrics.fDescent;
const SkMatrix& matrix = getTotalMatrix();
matrix.mapRect(&rect);
// Add the text to our picture.
SkCanvas* canvas = getWorkingCanvas();
int saveCount = canvas->save();
canvas->concat(matrix);
canvas->drawText(glyphs, countInBytes, pos[0] + before, y, paint);
canvas->restoreToCount(saveCount);
return rect;
}
SkPicture* RecordPicture(skiagm::GM* gm, uint32_t recordFlags, SkBBHFactory* factory) {
const SkISize size = gm->getISize();
SkPictureRecorder recorder;
SkCanvas* canvas = recorder.beginRecording(size.width(), size.height(), factory, recordFlags);
canvas->concat(gm->getInitialTransform());
gm->draw(canvas);
canvas->flush();
return recorder.endRecording();
}
void View::draw(SkCanvas & canvas)
{
SkAutoCanvasRestore restore(&canvas, true);
canvas.concat(m_props.matrix());
canvas.clipRect(m_props.localRect(), SkRegion::kIntersect_Op, true);
onDraw(canvas);
for (View* v : m_children) {
v->draw(canvas);
}
}
void GrLayerHoister::DrawLayersToAtlas(GrContext* context,
const SkTDArray<GrHoistedLayer>& atlased) {
if (atlased.count() > 0) {
// All the atlased layers are rendered into the same GrTexture
SkAutoTUnref<SkSurface> surface(SkSurface::NewRenderTargetDirect(
atlased[0].fLayer->texture()->asRenderTarget(), NULL));
SkCanvas* atlasCanvas = surface->getCanvas();
SkPaint clearPaint;
clearPaint.setColor(SK_ColorTRANSPARENT);
clearPaint.setXfermode(SkXfermode::Create(SkXfermode::kSrc_Mode))->unref();
for (int i = 0; i < atlased.count(); ++i) {
const GrCachedLayer* layer = atlased[i].fLayer;
const SkPicture* pict = atlased[i].fPicture;
const SkIPoint offset = atlased[i].fOffset;
SkDEBUGCODE(const SkPaint* layerPaint = layer->paint();)
SkASSERT(!layerPaint || !layerPaint->getImageFilter());
atlasCanvas->save();
// Add a rect clip to make sure the rendering doesn't
// extend beyond the boundaries of the atlased sub-rect
SkRect bound = SkRect::MakeXYWH(SkIntToScalar(layer->rect().fLeft),
SkIntToScalar(layer->rect().fTop),
SkIntToScalar(layer->rect().width()),
SkIntToScalar(layer->rect().height()));
atlasCanvas->clipRect(bound);
// Since 'clear' doesn't respect the clip we need to draw a rect
atlasCanvas->drawRect(bound, clearPaint);
// '-offset' maps the layer's top/left to the origin.
// Since this layer is atlased, the top/left corner needs
// to be offset to the correct location in the backing texture.
SkMatrix initialCTM;
initialCTM.setTranslate(SkIntToScalar(-offset.fX), SkIntToScalar(-offset.fY));
initialCTM.preTranslate(bound.fLeft, bound.fTop);
initialCTM.preConcat(atlased[i].fPreMat);
atlasCanvas->setMatrix(initialCTM);
atlasCanvas->concat(atlased[i].fLocalMat);
SkRecordPartialDraw(*pict->fRecord.get(), atlasCanvas, bound,
layer->start() + 1, layer->stop(), initialCTM);
atlasCanvas->restore();
}
atlasCanvas->flush();
}
bool SkWindow::update(SkIRect* updateArea) {
if (!fDirtyRgn.isEmpty()) {
SkBitmap bm = this->getBitmap();
#if defined(SK_BUILD_FOR_WINCE) && defined(USE_GX_SCREEN)
char* buffer = (char*)GXBeginDraw();
SkASSERT(buffer);
RECT rect;
GetWindowRect((HWND)((SkOSWindow*)this)->getHWND(), &rect);
buffer += rect.top * gDisplayProps.cbyPitch + rect.left * gDisplayProps.cbxPitch;
bm.setPixels(buffer);
#endif
SkAutoTUnref<SkSurface> surface(this->createSurface());
SkCanvas* canvas = surface->getCanvas();
canvas->clipRegion(fDirtyRgn);
if (updateArea)
*updateArea = fDirtyRgn.getBounds();
SkAutoCanvasRestore acr(canvas, true);
canvas->concat(fMatrix);
// empty this now, so we can correctly record any inval calls that
// might be made during the draw call.
fDirtyRgn.setEmpty();
#ifdef SK_SIMULATE_FAILED_MALLOC
gEnableControlledThrow = true;
#endif
#ifdef SK_BUILD_FOR_WIN32
//try {
this->draw(canvas);
//}
//catch (...) {
//}
#else
this->draw(canvas);
#endif
#ifdef SK_SIMULATE_FAILED_MALLOC
gEnableControlledThrow = false;
#endif
#if defined(SK_BUILD_FOR_WINCE) && defined(USE_GX_SCREEN)
GXEndDraw();
#endif
return true;
}
return false;
}
void OsmAnd::MapRasterizer_P::rasterizePolylineIcons(
const Context& context,
SkCanvas& canvas,
const SkPath& path,
const MapStyleEvaluationResult& evalResult)
{
bool ok;
QString pathIconName;
ok = evalResult.getStringValue(context.env->styleBuiltinValueDefs->id_OUTPUT_PATH_ICON, pathIconName);
if (!ok || pathIconName.isEmpty())
return;
float pathIconStep = 0.0f;
ok = evalResult.getFloatValue(context.env->styleBuiltinValueDefs->id_OUTPUT_PATH_ICON_STEP, pathIconStep);
if (!ok || pathIconStep <= 0.0f)
return;
std::shared_ptr<const SkBitmap> pathIcon;
ok = context.env->obtainMapIcon(pathIconName, pathIcon);
if (!ok || !pathIcon)
return;
SkMatrix mIconTransform;
mIconTransform.setIdentity();
mIconTransform.setTranslate(-0.5f * pathIcon->width(), -0.5f * pathIcon->height());
mIconTransform.postRotate(90.0f);
SkPathMeasure pathMeasure(path, false);
const auto length = pathMeasure.getLength();
auto iconOffset = 0.5f * pathIconStep;
const auto iconInstancesCount = static_cast<int>((length - iconOffset) / pathIconStep) + 1;
if (iconInstancesCount < 1)
return;
SkMatrix mIconInstanceTransform;
for (auto iconInstanceIdx = 0; iconInstanceIdx < iconInstancesCount; iconInstanceIdx++, iconOffset += pathIconStep)
{
SkMatrix mPinPoint;
ok = pathMeasure.getMatrix(iconOffset, &mPinPoint);
if (!ok)
break;
mIconInstanceTransform.setConcat(mPinPoint, mIconTransform);
canvas.save();
canvas.concat(mIconInstanceTransform);
canvas.drawBitmap(*pathIcon, 0, 0, &_defaultPaint);
canvas.restore();
}
}
void GrLayerHoister::DrawLayersToAtlas(GrContext* context,
const SkTDArray<GrHoistedLayer>& atlased) {
if (atlased.count() > 0) {
// All the atlased layers are rendered into the same GrTexture
SkSurfaceProps props(0, kUnknown_SkPixelGeometry);
SkAutoTUnref<SkSurface> surface(SkSurface::NewRenderTargetDirect(
atlased[0].fLayer->texture()->asRenderTarget(), &props));
SkCanvas* atlasCanvas = surface->getCanvas();
for (int i = 0; i < atlased.count(); ++i) {
const GrCachedLayer* layer = atlased[i].fLayer;
const SkBigPicture* pict = atlased[i].fPicture->asSkBigPicture();
if (!pict) {
// TODO: can we assume / assert this?
continue;
}
const SkIPoint offset = SkIPoint::Make(layer->srcIR().fLeft, layer->srcIR().fTop);
SkDEBUGCODE(const SkPaint* layerPaint = layer->paint();)
SkASSERT(!layerPaint || !layerPaint->getImageFilter());
SkASSERT(!layer->filter());
atlasCanvas->save();
// Add a rect clip to make sure the rendering doesn't
// extend beyond the boundaries of the atlased sub-rect
const SkRect bound = SkRect::Make(layer->rect());
atlasCanvas->clipRect(bound);
atlasCanvas->clear(0);
// '-offset' maps the layer's top/left to the origin.
// Since this layer is atlased, the top/left corner needs
// to be offset to the correct location in the backing texture.
SkMatrix initialCTM;
initialCTM.setTranslate(SkIntToScalar(-offset.fX), SkIntToScalar(-offset.fY));
initialCTM.preTranslate(bound.fLeft, bound.fTop);
initialCTM.preConcat(atlased[i].fPreMat);
atlasCanvas->setMatrix(initialCTM);
atlasCanvas->concat(atlased[i].fLocalMat);
pict->partialPlayback(atlasCanvas, layer->start() + 1, layer->stop(), initialCTM);
atlasCanvas->restore();
}
atlasCanvas->flush();
}
static void test_sweep_fuzzer(skiatest::Reporter*) {
static const SkColor gColors0[] = { 0x30303030, 0x30303030, 0x30303030 };
static const SkScalar gPos0[] = { -47919293023455565225163489280.0f, 0, 1 };
static const SkScalar gMatrix0[9] = {
1.12116716e-13f, 0 , 8.50489682e+16f,
4.1917041e-41f , 3.51369881e-23f, -2.54344271e-26f,
9.61111907e+17f, -3.35263808e-29f, -1.35659403e+14f
};
static const struct {
SkPoint fCenter;
const SkColor* fColors;
const SkScalar* fPos;
int fCount;
const SkScalar* fGlobalMatrix;
} gConfigs[] = {
{
{ 0, 0 },
gColors0,
gPos0,
SK_ARRAY_COUNT(gColors0),
gMatrix0
},
};
sk_sp<SkSurface> surface = SkSurface::MakeRasterN32Premul(100, 100);
SkCanvas* canvas = surface->getCanvas();
SkPaint paint;
for (const auto& config : gConfigs) {
paint.setShader(SkGradientShader::MakeSweep(config.fCenter.x(),
config.fCenter.y(),
config.fColors,
config.fPos,
config.fCount));
SkAutoCanvasRestore acr(canvas, false);
if (config.fGlobalMatrix) {
SkMatrix m;
m.set9(config.fGlobalMatrix);
canvas->save();
canvas->concat(m);
}
canvas->drawPaint(paint);
}
}
static void DrawRoundRect(SkCanvas& canvas) {
bool ret = false;
SkPaint paint;
SkBitmap bitmap;
SkMatrix matrix;
matrix.reset();
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1370, 812);
bitmap.allocPixels();
#if 0
SkCanvas canvas;
canvas.setBitmapDevice(bitmap);
#endif
// set up clipper
SkRect skclip;
skclip.set(SkIntToScalar(284), SkIntToScalar(40), SkIntToScalar(1370), SkIntToScalar(708));
// ret = canvas.clipRect(skclip);
// SkASSERT(ret);
matrix.set(SkMatrix::kMTransX, SkFloatToScalar(-1153.28f));
matrix.set(SkMatrix::kMTransY, SkFloatToScalar(1180.50f));
matrix.set(SkMatrix::kMScaleX, SkFloatToScalar(0.177171f));
matrix.set(SkMatrix::kMScaleY, SkFloatToScalar(0.177043f));
matrix.set(SkMatrix::kMSkewX, SkFloatToScalar(0.126968f));
matrix.set(SkMatrix::kMSkewY, SkFloatToScalar(-0.126876f));
matrix.set(SkMatrix::kMPersp0, SkFloatToScalar(0.0f));
matrix.set(SkMatrix::kMPersp1, SkFloatToScalar(0.0f));
ret = canvas.concat(matrix);
paint.setAntiAlias(true);
paint.setColor(0xb2202020);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(SkFloatToScalar(68.13f));
SkRect r;
r.set(SkFloatToScalar(-313.714417f), SkFloatToScalar(-4.826389f), SkFloatToScalar(18014.447266f), SkFloatToScalar(1858.154541f));
canvas.drawRoundRect(r, SkFloatToScalar(91.756363f), SkFloatToScalar(91.756363f), paint);
}
static void DrawRoundRect() {
#ifdef SK_SCALAR_IS_FIXED
bool ret = false;
SkPaint paint;
SkBitmap bitmap;
SkCanvas canvas;
SkMatrix matrix;
matrix.reset();
bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1370, 812);
bitmap.allocPixels();
canvas.setBitmapDevice(bitmap);
// set up clipper
SkRect skclip;
skclip.set(SkIntToFixed(284), SkIntToFixed(40), SkIntToFixed(1370), SkIntToFixed(708));
ret = canvas.clipRect(skclip);
SkASSERT(ret);
matrix.set(SkMatrix::kMTransX, SkFloatToFixed(-1153.28));
matrix.set(SkMatrix::kMTransY, SkFloatToFixed(1180.50));
matrix.set(SkMatrix::kMScaleX, SkFloatToFixed(0.177171));
matrix.set(SkMatrix::kMScaleY, SkFloatToFixed(0.177043));
matrix.set(SkMatrix::kMSkewX, SkFloatToFixed(0.126968));
matrix.set(SkMatrix::kMSkewY, SkFloatToFixed(-0.126876));
matrix.set(SkMatrix::kMPersp0, SkFloatToFixed(0.0));
matrix.set(SkMatrix::kMPersp1, SkFloatToFixed(0.0));
ret = canvas.concat(matrix);
paint.setAntiAlias(true);
paint.setColor(0xb2202020);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(SkFloatToFixed(68.13));
SkRect r;
r.set(SkFloatToFixed(-313.714417), SkFloatToFixed(-4.826389), SkFloatToFixed(18014.447266), SkFloatToFixed(1858.154541));
canvas.drawRoundRect(r, SkFloatToFixed(91.756363), SkFloatToFixed(91.756363), paint);
#endif
}
void GpuGMTask::draw(GrContextFactory* grFactory) {
SkImageInfo info = SkImageInfo::Make(SkScalarCeilToInt(fGM->width()),
SkScalarCeilToInt(fGM->height()),
kPMColor_SkColorType,
kPremul_SkAlphaType);
SkAutoTUnref<SkSurface> surface(NewGpuSurface(grFactory, fContextType, info, fSampleCount));
SkCanvas* canvas = surface->getCanvas();
canvas->concat(fGM->getInitialTransform());
fGM->draw(canvas);
canvas->flush();
SkBitmap bitmap;
bitmap.setConfig(info);
canvas->readPixels(&bitmap, 0, 0);
this->spawnChild(SkNEW_ARGS(ExpectationsTask, (*this, fExpectations, bitmap)));
this->spawnChild(SkNEW_ARGS(WriteTask, (*this, bitmap)));
}
void copyMinToMax() {
erase(fMaxSurface);
SkCanvas* canvas = fMaxSurface->getCanvas();
canvas->save();
canvas->concat(fMatrix);
fMinSurface->draw(canvas, 0, 0, NULL);
canvas->restore();
SkPaint paint;
paint.setXfermodeMode(SkXfermode::kClear_Mode);
for (int iy = 1; iy < fH; ++iy) {
SkScalar y = SkIntToScalar(iy * fZoom);
canvas->drawLine(0, y - SK_ScalarHalf, 999, y - SK_ScalarHalf, paint);
}
for (int ix = 1; ix < fW; ++ix) {
SkScalar x = SkIntToScalar(ix * fZoom);
canvas->drawLine(x - SK_ScalarHalf, 0, x - SK_ScalarHalf, 999, paint);
}
}
void PipeTask::draw() {
SkBitmap bitmap;
SetupBitmap(fReference.config(), fGM.get(), &bitmap);
SkCanvas canvas(bitmap);
PipeController pipeController(&canvas, &SkImageDecoder::DecodeMemory);
SkGPipeWriter writer;
SkCanvas* pipeCanvas = writer.startRecording(&pipeController,
fFlags,
bitmap.width(),
bitmap.height());
pipeCanvas->concat(fGM->getInitialTransform());
fGM->draw(pipeCanvas);
writer.endRecording();
if (!BitmapsEqual(bitmap, fReference)) {
this->fail();
this->spawnChild(SkNEW_ARGS(WriteTask, (*this, bitmap)));
}
}
PassRefPtr<SkImage> DragImage::resizeAndOrientImage(PassRefPtr<SkImage> image, ImageOrientation orientation,
FloatSize imageScale, float opacity, InterpolationQuality interpolationQuality)
{
IntSize size(image->width(), image->height());
size.scale(imageScale.width(), imageScale.height());
AffineTransform transform;
if (orientation != DefaultImageOrientation) {
if (orientation.usesWidthAsHeight())
size = size.transposedSize();
transform *= orientation.transformFromDefault(size);
}
transform.scaleNonUniform(imageScale.width(), imageScale.height());
if (size.isEmpty())
return nullptr;
if (transform.isIdentity() && opacity == 1) {
// Nothing to adjust, just use the original.
ASSERT(image->width() == size.width());
ASSERT(image->height() == size.height());
return image;
}
RefPtr<SkSurface> surface = adoptRef(SkSurface::NewRasterN32Premul(size.width(), size.height()));
if (!surface)
return nullptr;
SkPaint paint;
ASSERT(opacity >= 0 && opacity <= 1);
paint.setAlpha(opacity * 255);
paint.setFilterQuality(interpolationQuality == InterpolationNone
? kNone_SkFilterQuality : kHigh_SkFilterQuality);
SkCanvas* canvas = surface->getCanvas();
canvas->clear(SK_ColorTRANSPARENT);
canvas->concat(affineTransformToSkMatrix(transform));
canvas->drawImage(image.get(), 0, 0, &paint);
return adoptRef(surface->newImageSnapshot());
}
bool SkWindow::update(SkIRect* updateArea) {
if (!fDirtyRgn.isEmpty()) {
SkAutoTUnref<SkSurface> surface(this->createSurface());
SkCanvas* canvas = surface->getCanvas();
canvas->clipRegion(fDirtyRgn);
if (updateArea) {
*updateArea = fDirtyRgn.getBounds();
}
SkAutoCanvasRestore acr(canvas, true);
canvas->concat(fMatrix);
// empty this now, so we can correctly record any inval calls that
// might be made during the draw call.
fDirtyRgn.setEmpty();
#ifdef SK_SIMULATE_FAILED_MALLOC
gEnableControlledThrow = true;
#endif
#ifdef SK_BUILD_FOR_WIN32
//try {
this->draw(canvas);
//}
//catch (...) {
//}
#else
this->draw(canvas);
#endif
#ifdef SK_SIMULATE_FAILED_MALLOC
gEnableControlledThrow = false;
#endif
return true;
}
return false;
}
virtual void onDraw(SkCanvas* inputCanvas) override {
SkScalar textSizes[] = { 9.0f, 9.0f*2.0f, 9.0f*5.0f, 9.0f*2.0f*5.0f };
SkScalar scales[] = { 2.0f*5.0f, 5.0f, 2.0f, 1.0f };
// set up offscreen rendering with distance field text
GrContext* ctx = inputCanvas->getGrContext();
SkISize size = onISize();
SkImageInfo info = SkImageInfo::MakeN32(size.width(), size.height(), kPremul_SkAlphaType,
inputCanvas->imageInfo().refColorSpace());
SkSurfaceProps props(SkSurfaceProps::kUseDeviceIndependentFonts_Flag,
SkSurfaceProps::kLegacyFontHost_InitType);
auto surface(SkSurface::MakeRenderTarget(ctx, SkBudgeted::kNo, info, 0, &props));
SkCanvas* canvas = surface ? surface->getCanvas() : inputCanvas;
// init our new canvas with the old canvas's matrix
canvas->setMatrix(inputCanvas->getTotalMatrix());
// apply global scale to test glyph positioning
canvas->scale(1.05f, 1.05f);
canvas->clear(0xffffffff);
SkPaint paint;
paint.setAntiAlias(true);
SkFont font(ToolUtils::create_portable_typeface("serif", SkFontStyle()));
font.setSubpixel(true);
const char* text = "Hamburgefons";
const size_t textLen = strlen(text);
// check scaling up
SkScalar x = SkIntToScalar(0);
SkScalar y = SkIntToScalar(78);
for (size_t i = 0; i < SK_ARRAY_COUNT(textSizes); ++i) {
SkAutoCanvasRestore acr(canvas, true);
canvas->translate(x, y);
canvas->scale(scales[i], scales[i]);
font.setSize(textSizes[i]);
canvas->drawSimpleText(text, textLen, SkTextEncoding::kUTF8, 0, 0, font, paint);
y += font.getMetrics(nullptr)*scales[i];
}
// check rotation
for (size_t i = 0; i < 5; ++i) {
SkScalar rotX = SkIntToScalar(10);
SkScalar rotY = y;
SkAutoCanvasRestore acr(canvas, true);
canvas->translate(SkIntToScalar(10 + i * 200), -80);
canvas->rotate(SkIntToScalar(i * 5), rotX, rotY);
for (int ps = 6; ps <= 32; ps += 3) {
font.setSize(SkIntToScalar(ps));
canvas->drawSimpleText(text, textLen, SkTextEncoding::kUTF8, rotX, rotY, font, paint);
rotY += font.getMetrics(nullptr);
}
}
// check scaling down
font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
x = SkIntToScalar(680);
y = SkIntToScalar(20);
size_t arraySize = SK_ARRAY_COUNT(textSizes);
for (size_t i = 0; i < arraySize; ++i) {
SkAutoCanvasRestore acr(canvas, true);
canvas->translate(x, y);
SkScalar scaleFactor = SkScalarInvert(scales[arraySize - i - 1]);
canvas->scale(scaleFactor, scaleFactor);
font.setSize(textSizes[i]);
canvas->drawSimpleText(text, textLen, SkTextEncoding::kUTF8, 0, 0, font, paint);
y += font.getMetrics(nullptr)*scaleFactor;
}
// check pos text
{
SkAutoCanvasRestore acr(canvas, true);
canvas->scale(2.0f, 2.0f);
SkAutoTArray<SkGlyphID> glyphs(SkToInt(textLen));
int count = font.textToGlyphs(text, textLen, SkTextEncoding::kUTF8, glyphs.get(), textLen);
SkAutoTArray<SkPoint> pos(count);
font.setSize(textSizes[0]);
font.getPos(glyphs.get(), count, pos.get(), {340, 75});
auto blob = SkTextBlob::MakeFromPosText(glyphs.get(), count * sizeof(SkGlyphID),
pos.get(), font, SkTextEncoding::kGlyphID);
canvas->drawTextBlob(blob, 0, 0, paint);
}
// check gamma-corrected blending
const SkColor fg[] = {
0xFFFFFFFF,
0xFFFFFF00, 0xFFFF00FF, 0xFF00FFFF,
0xFFFF0000, 0xFF00FF00, 0xFF0000FF,
0xFF000000,
};
paint.setColor(0xFFF7F3F7);
SkRect r = SkRect::MakeLTRB(670, 215, 820, 397);
canvas->drawRect(r, paint);
x = SkIntToScalar(680);
y = SkIntToScalar(235);
font.setSize(SkIntToScalar(19));
for (size_t i = 0; i < SK_ARRAY_COUNT(fg); ++i) {
paint.setColor(fg[i]);
canvas->drawSimpleText(text, textLen, SkTextEncoding::kUTF8, x, y, font, paint);
y += font.getMetrics(nullptr);
}
paint.setColor(0xFF181C18);
r = SkRect::MakeLTRB(820, 215, 970, 397);
canvas->drawRect(r, paint);
x = SkIntToScalar(830);
y = SkIntToScalar(235);
font.setSize(SkIntToScalar(19));
for (size_t i = 0; i < SK_ARRAY_COUNT(fg); ++i) {
paint.setColor(fg[i]);
canvas->drawSimpleText(text, textLen, SkTextEncoding::kUTF8, x, y, font, paint);
y += font.getMetrics(nullptr);
}
// check skew
{
font.setEdging(SkFont::Edging::kAntiAlias);
SkAutoCanvasRestore acr(canvas, true);
canvas->skew(0.0f, 0.151515f);
font.setSize(SkIntToScalar(32));
canvas->drawSimpleText(text, textLen, SkTextEncoding::kUTF8, 745, 70, font, paint);
}
{
font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
SkAutoCanvasRestore acr(canvas, true);
canvas->skew(0.5f, 0.0f);
font.setSize(SkIntToScalar(32));
canvas->drawSimpleText(text, textLen, SkTextEncoding::kUTF8, 580, 125, font, paint);
}
// check perspective
{
font.setEdging(SkFont::Edging::kAntiAlias);
SkAutoCanvasRestore acr(canvas, true);
SkMatrix persp;
persp.setAll(0.9839f, 0, 0,
0.2246f, 0.6829f, 0,
0.0002352f, -0.0003844f, 1);
canvas->concat(persp);
canvas->translate(1100, -295);
font.setSize(37.5f);
canvas->drawSimpleText(text, textLen, SkTextEncoding::kUTF8, 0, 0, font, paint);
}
{
font.setSubpixel(false);
font.setEdging(SkFont::Edging::kAlias);
SkAutoCanvasRestore acr(canvas, true);
SkMatrix persp;
persp.setAll(0.9839f, 0, 0,
0.2246f, 0.6829f, 0,
0.0002352f, -0.0003844f, 1);
canvas->concat(persp);
canvas->translate(1075, -245);
canvas->scale(375, 375);
font.setSize(0.1f);
canvas->drawSimpleText(text, textLen, SkTextEncoding::kUTF8, 0, 0, font, paint);
}
// check color emoji
if (fEmojiTypeface) {
SkFont emoiFont;
emoiFont.setSubpixel(true);
emoiFont.setTypeface(fEmojiTypeface);
emoiFont.setSize(SkIntToScalar(19));
canvas->drawSimpleText(fEmojiText, strlen(fEmojiText), SkTextEncoding::kUTF8, 670, 90, emoiFont, paint);
}
// render offscreen buffer
if (surface) {
SkAutoCanvasRestore acr(inputCanvas, true);
// since we prepended this matrix already, we blit using identity
inputCanvas->resetMatrix();
inputCanvas->drawImage(surface->makeImageSnapshot().get(), 0, 0, nullptr);
}
}
// "Interesting" fuzzer values.
static void test_linear_fuzzer(skiatest::Reporter*) {
static const SkColor gColors0[] = { 0x30303030, 0x30303030 };
static const SkColor gColors1[] = { 0x30303030, 0x30303030, 0x30303030 };
static const SkScalar gPos1[] = { 0, 0, 1 };
static const SkScalar gMatrix0[9] = {
6.40969056e-10f, 0 , 6.40969056e-10f,
0 , 4.42539023e-39f, 6.40969056e-10f,
0 , 0 , 1
};
static const SkScalar gMatrix1[9] = {
-2.75294113f , 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 6.40969056e-10f, -3.32810161e+24f,
6.40969056e-10f, 6.40969056e-10f, 0
};
static const SkScalar gMatrix2[9] = {
7.93481258e+17f, 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 6.40969056e-10f, 0.688235283f
};
static const SkScalar gMatrix3[9] = {
1.89180674e+11f, 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 11276.0469f , 8.12524808e+20f
};
static const struct {
SkPoint fPts[2];
const SkColor* fColors;
const SkScalar* fPos;
int fCount;
SkTileMode fTileMode;
uint32_t fFlags;
const SkScalar* fLocalMatrix;
const SkScalar* fGlobalMatrix;
} gConfigs[] = {
{
{{0, -2.752941f}, {0, 0}},
gColors0,
nullptr,
SK_ARRAY_COUNT(gColors0),
SkTileMode::kClamp,
0,
gMatrix0,
nullptr
},
{
{{4.42539023e-39f, -4.42539023e-39f}, {9.78041162e-15f, 4.42539023e-39f}},
gColors1,
gPos1,
SK_ARRAY_COUNT(gColors1),
SkTileMode::kClamp,
0,
nullptr,
gMatrix1
},
{
{{4.42539023e-39f, 6.40969056e-10f}, {6.40969056e-10f, 1.49237238e-19f}},
gColors1,
gPos1,
SK_ARRAY_COUNT(gColors1),
SkTileMode::kClamp,
0,
nullptr,
gMatrix2
},
{
{{6.40969056e-10f, 6.40969056e-10f}, {6.40969056e-10f, -0.688235283f}},
gColors0,
nullptr,
SK_ARRAY_COUNT(gColors0),
SkTileMode::kClamp,
0,
gMatrix3,
nullptr
},
};
sk_sp<SkColorSpace> srgb = SkColorSpace::MakeSRGB();
SkColorSpace* colorSpaces[] = {
nullptr, // hits the legacy gradient impl
srgb.get(), // triggers 4f/raster-pipeline
};
SkPaint paint;
for (auto colorSpace : colorSpaces) {
sk_sp<SkSurface> surface = SkSurface::MakeRaster(SkImageInfo::Make(100, 100,
kN32_SkColorType,
kPremul_SkAlphaType,
sk_ref_sp(colorSpace)));
SkCanvas* canvas = surface->getCanvas();
for (const auto& config : gConfigs) {
SkAutoCanvasRestore acr(canvas, false);
SkTLazy<SkMatrix> localMatrix;
if (config.fLocalMatrix) {
localMatrix.init();
localMatrix.get()->set9(config.fLocalMatrix);
}
paint.setShader(SkGradientShader::MakeLinear(config.fPts,
config.fColors,
config.fPos,
config.fCount,
config.fTileMode,
config.fFlags,
localMatrix.getMaybeNull()));
if (config.fGlobalMatrix) {
SkMatrix m;
m.set9(config.fGlobalMatrix);
canvas->save();
canvas->concat(m);
}
canvas->drawPaint(paint);
}
}
}
void GrLayerHoister::DrawLayers(const SkTDArray<GrHoistedLayer>& atlased,
const SkTDArray<GrHoistedLayer>& nonAtlased,
const SkTDArray<GrHoistedLayer>& recycled,
GrReplacements* replacements) {
// Render the atlased layers that require it
if (atlased.count() > 0) {
// All the atlased layers are rendered into the same GrTexture
SkAutoTUnref<SkSurface> surface(SkSurface::NewRenderTargetDirect(
atlased[0].fLayer->texture()->asRenderTarget(), NULL));
SkCanvas* atlasCanvas = surface->getCanvas();
SkPaint paint;
paint.setColor(SK_ColorTRANSPARENT);
paint.setXfermode(SkXfermode::Create(SkXfermode::kSrc_Mode))->unref();
for (int i = 0; i < atlased.count(); ++i) {
GrCachedLayer* layer = atlased[i].fLayer;
const SkPicture* pict = atlased[i].fPicture;
const SkIPoint offset = atlased[i].fOffset;
atlasCanvas->save();
// Add a rect clip to make sure the rendering doesn't
// extend beyond the boundaries of the atlased sub-rect
SkRect bound = SkRect::MakeXYWH(SkIntToScalar(layer->rect().fLeft),
SkIntToScalar(layer->rect().fTop),
SkIntToScalar(layer->rect().width()),
SkIntToScalar(layer->rect().height()));
atlasCanvas->clipRect(bound);
// Since 'clear' doesn't respect the clip we need to draw a rect
// TODO: ensure none of the atlased layers contain a clear call!
atlasCanvas->drawRect(bound, paint);
// info.fCTM maps the layer's top/left to the origin.
// Since this layer is atlased, the top/left corner needs
// to be offset to the correct location in the backing texture.
SkMatrix initialCTM;
initialCTM.setTranslate(SkIntToScalar(-offset.fX),
SkIntToScalar(-offset.fY));
initialCTM.postTranslate(bound.fLeft, bound.fTop);
atlasCanvas->translate(SkIntToScalar(-offset.fX),
SkIntToScalar(-offset.fY));
atlasCanvas->translate(bound.fLeft, bound.fTop);
atlasCanvas->concat(atlased[i].fCTM);
SkRecordPartialDraw(*pict->fRecord.get(), atlasCanvas, bound,
layer->start()+1, layer->stop(), initialCTM);
atlasCanvas->restore();
}
atlasCanvas->flush();
}
// Render the non-atlased layers that require it
for (int i = 0; i < nonAtlased.count(); ++i) {
GrCachedLayer* layer = nonAtlased[i].fLayer;
const SkPicture* pict = nonAtlased[i].fPicture;
const SkIPoint offset = nonAtlased[i].fOffset;
// Each non-atlased layer has its own GrTexture
SkAutoTUnref<SkSurface> surface(SkSurface::NewRenderTargetDirect(
layer->texture()->asRenderTarget(), NULL));
SkCanvas* layerCanvas = surface->getCanvas();
// Add a rect clip to make sure the rendering doesn't
// extend beyond the boundaries of the atlased sub-rect
SkRect bound = SkRect::MakeXYWH(SkIntToScalar(layer->rect().fLeft),
SkIntToScalar(layer->rect().fTop),
SkIntToScalar(layer->rect().width()),
SkIntToScalar(layer->rect().height()));
layerCanvas->clipRect(bound); // TODO: still useful?
layerCanvas->clear(SK_ColorTRANSPARENT);
SkMatrix initialCTM;
initialCTM.setTranslate(SkIntToScalar(-offset.fX),
SkIntToScalar(-offset.fY));
layerCanvas->translate(SkIntToScalar(-offset.fX),
SkIntToScalar(-offset.fY));
layerCanvas->concat(nonAtlased[i].fCTM);
SkRecordPartialDraw(*pict->fRecord.get(), layerCanvas, bound,
layer->start()+1, layer->stop(), initialCTM);
layerCanvas->flush();
}
convert_layers_to_replacements(atlased, replacements);
convert_layers_to_replacements(nonAtlased, replacements);
convert_layers_to_replacements(recycled, replacements);
}