static void show_fill(SkCanvas* canvas, bool doAA) {
SkRandom rand;
SkPaint paint;
paint.setAntiAlias(doAA);
for (int i = 0; i < 50; ++i) {
SkRect r;
SkPath p;
r.setXYWH(rand.nextSScalar1() * W, rand.nextSScalar1() * H,
rand.nextUScalar1() * W, rand.nextUScalar1() * H);
paint.setColor(rand.nextU());
canvas->drawRect(r, paint);
r.setXYWH(rand.nextSScalar1() * W, rand.nextSScalar1() * H,
rand.nextUScalar1() * W, rand.nextUScalar1() * H);
paint.setColor(rand.nextU());
p.addOval(r);
canvas->drawPath(p, paint);
}
}
static SkScalar draw_row(SkCanvas* canvas, const SkBitmap& bm) {
SkAutoCanvasRestore acr(canvas, true);
SkPaint paint;
SkScalar x = 0;
const int scale = 32;
paint.setAntiAlias(true);
const char* name = sk_tool_utils::colortype_name(bm.colorType());
canvas->drawText(name, strlen(name), x, SkIntToScalar(bm.height())*scale*5/8,
paint);
canvas->translate(SkIntToScalar(48), 0);
canvas->scale(SkIntToScalar(scale), SkIntToScalar(scale));
x += draw_set(canvas, bm, 0, &paint);
paint.reset();
paint.setAlpha(0x80);
draw_set(canvas, bm, x, &paint);
return x * scale / 3;
}
static void texteffect_slide(SkCanvas* canvas) {
const char* str = "Google";
size_t len = strlen(str);
SkScalar x = 20;
SkScalar y = 80;
SkPaint paint;
paint.setTypeface(SkTypeface::MakeFromName("Georgia",
SkFontStyle::FromOldStyle(SkTypeface::kItalic)));
paint.setTextSize(75);
paint.setAntiAlias(true);
paint.setColor(SK_ColorBLUE);
for (size_t i = 0; i < SK_ARRAY_COUNT(gRastProcs); i++) {
apply_shader(&paint, (int)i);
canvas->drawText(str, len, x, y, paint);
y += 80;
if (i == 4) {
x += 320;
y = 80;
}
}
}
void onDraw(SkCanvas* canvas) override {
SkPoint pts[2] = { { 0, 0 },
{ SkIntToScalar(100), SkIntToScalar(100) }
};
SkShader::TileMode tm = SkShader::kClamp_TileMode;
SkRect r = { 0, 0, SkIntToScalar(100), SkIntToScalar(100) };
SkPaint paint;
paint.setAntiAlias(true);
canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
for (size_t i = 0; i < SK_ARRAY_COUNT(gGradData); i++) {
canvas->save();
for (size_t j = 0; j < SK_ARRAY_COUNT(gGradMakers); j++) {
paint.setShader(gGradMakers[j](pts, gGradData[i], tm));
canvas->drawRect(r, paint);
canvas->translate(0, SkIntToScalar(120));
}
canvas->restore();
canvas->translate(SkIntToScalar(120), 0);
}
}
SkBitmap createRandomCharIcon() {
int size = cardHeight - (dp(10) * 2);
SkBitmap bitmap = TestUtils::createSkBitmap(size, size);
SkCanvas canvas(bitmap);
canvas.clear(0);
SkPaint paint;
paint.setAntiAlias(true);
SkColor randomColor = BrightColors[rand() % BrightColorsCount];
paint.setColor(randomColor);
canvas.drawCircle(size / 2, size / 2, size / 2, paint);
bool bgDark = SkColorGetR(randomColor) + SkColorGetG(randomColor) + SkColorGetB(randomColor)
< 128 * 3;
paint.setColor(bgDark ? Color::White : Color::Grey_700);
paint.setTextAlign(SkPaint::kCenter_Align);
paint.setTextSize(size / 2);
char charToShow = 'A' + (rand() % 26);
canvas.drawText(&charToShow, 1, size / 2, /*approximate centering*/ size * 0.7, paint);
return bitmap;
}
static SkBitmap createBitmap(int n) {
SkBitmap bitmap;
bitmap.allocN32Pixels(n, n);
bitmap.eraseColor(SK_ColorGREEN);
SkCanvas canvas(bitmap);
SkRect r;
r.set(0, 0, SkIntToScalar(n), SkIntToScalar(n));
SkPaint paint;
paint.setAntiAlias(true);
paint.setColor(SK_ColorRED);
canvas.drawOval(r, paint);
paint.setColor(SK_ColorBLUE);
paint.setStrokeWidth(SkIntToScalar(n)/15);
paint.setStyle(SkPaint::kStroke_Style);
canvas.drawLine(0, 0, r.fRight, r.fBottom, paint);
canvas.drawLine(0, r.fBottom, r.fRight, 0, paint);
return bitmap;
}
static void test_drawPathEmpty(skiatest::Reporter*, SkCanvas* canvas) {
// Filling an empty path should not crash.
SkPaint paint;
canvas->drawRect(SkRect(), paint);
canvas->drawPath(SkPath(), paint);
canvas->drawOval(SkRect(), paint);
canvas->drawRect(SkRect(), paint);
canvas->drawRRect(SkRRect(), paint);
// Stroking an empty path should not crash.
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
paint.setColor(SK_ColorGRAY);
paint.setStrokeWidth(SkIntToScalar(20));
paint.setStrokeJoin(SkPaint::kRound_Join);
canvas->drawRect(SkRect(), paint);
canvas->drawPath(SkPath(), paint);
canvas->drawOval(SkRect(), paint);
canvas->drawRect(SkRect(), paint);
canvas->drawRRect(SkRRect(), paint);
}
/*
* Inspired by http://code.google.com/p/chromium/issues/detail?id=112145
*/
static void flower(SkCanvas* canvas, const SkPath& path,
SkScalar intervals[2], SkPaint::Join join) {
SkPathEffect* pe = SkDashPathEffect::Create(intervals, 2, 0);
SkPaint paint;
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeJoin(join);
paint.setStrokeWidth(42);
canvas->drawPath(path, paint);
paint.setColor(SK_ColorRED);
paint.setStrokeWidth(21);
paint.setPathEffect(pe)->unref();
canvas->drawPath(path, paint);
paint.setColor(SK_ColorGREEN);
paint.setPathEffect(nullptr);
paint.setStrokeWidth(0);
canvas->drawPath(path, paint);
}
virtual void onDraw(const int loops, SkCanvas* canvas) {
SkPaint paint;
this->setupPaint(&paint);
paint.setAntiAlias(true);
SkRandom rand;
for (int i = 0; i < loops; i++) {
SkRect r = SkRect::MakeWH(rand.nextUScalar1() * 400,
rand.nextUScalar1() * 400);
r.offset(fRadius, fRadius);
if (fRadius > 0) {
SkMaskFilter* mf = SkBlurMaskFilter::Create(fStyle,
SkBlurMask::ConvertRadiusToSigma(fRadius),
fFlags);
paint.setMaskFilter(mf)->unref();
}
canvas->drawOval(r, paint);
}
}
static void drawSomething(SkCanvas* canvas) {
SkPaint paint;
canvas->save();
canvas->scale(0.5f, 0.5f);
canvas->drawBitmap(make_bitmap(), 0, 0, NULL);
canvas->restore();
const char beforeStr[] = "before circle";
const char afterStr[] = "after circle";
paint.setAntiAlias(true);
paint.setColor(SK_ColorRED);
canvas->drawData(beforeStr, sizeof(beforeStr));
canvas->drawCircle(SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/3), paint);
canvas->drawData(afterStr, sizeof(afterStr));
paint.setColor(SK_ColorBLACK);
paint.setTextSize(SkIntToScalar(kBitmapSize/3));
canvas->drawText("Picture", 7, SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/4), paint);
}
static void
Transform(DataSourceSurface* aDest,
DataSourceSurface* aSource,
const gfx3DMatrix& aTransform,
const Point& aDestOffset)
{
if (aTransform.IsSingular()) {
return;
}
IntSize destSize = aDest->GetSize();
SkImageInfo destInfo = SkImageInfo::Make(destSize.width,
destSize.height,
kBGRA_8888_SkColorType,
kPremul_SkAlphaType);
SkBitmap destBitmap;
destBitmap.setInfo(destInfo, aDest->Stride());
destBitmap.setPixels((uint32_t*)aDest->GetData());
SkCanvas destCanvas(destBitmap);
IntSize srcSize = aSource->GetSize();
SkImageInfo srcInfo = SkImageInfo::Make(srcSize.width,
srcSize.height,
kBGRA_8888_SkColorType,
kPremul_SkAlphaType);
SkBitmap src;
src.setInfo(srcInfo, aSource->Stride());
src.setPixels((uint32_t*)aSource->GetData());
gfx3DMatrix transform = aTransform;
transform.TranslatePost(Point3D(-aDestOffset.x, -aDestOffset.y, 0));
destCanvas.setMatrix(Matrix3DToSkia(transform));
SkPaint paint;
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
paint.setAntiAlias(true);
paint.setFilterLevel(SkPaint::kLow_FilterLevel);
SkRect destRect = SkRect::MakeXYWH(0, 0, srcSize.width, srcSize.height);
destCanvas.drawBitmapRectToRect(src, nullptr, destRect, &paint);
}
static void paintSkBitmap(PlatformContextSkia* platformContext, const NativeImageSkia& bitmap, const SkIRect& srcRect, const SkRect& destRect, const SkXfermode::Mode& compOp)
{
#if PLATFORM(CHROMIUM)
TRACE_EVENT("paintSkBitmap", platformContext, 0);
#endif
SkPaint paint;
paint.setXfermodeMode(compOp);
paint.setAlpha(platformContext->getNormalizedAlpha());
paint.setLooper(platformContext->getDrawLooper());
// only antialias if we're rotated or skewed
paint.setAntiAlias(hasNon90rotation(platformContext));
SkCanvas* canvas = platformContext->canvas();
ResamplingMode resampling;
if (platformContext->isAccelerated())
resampling = RESAMPLE_LINEAR;
else
resampling = platformContext->printing() ? RESAMPLE_NONE :
computeResamplingMode(platformContext, bitmap, srcRect.width(), srcRect.height(), SkScalarToFloat(destRect.width()), SkScalarToFloat(destRect.height()));
if (resampling == RESAMPLE_NONE) {
// FIXME: This is to not break tests (it results in the filter bitmap flag
// being set to true). We need to decide if we respect RESAMPLE_NONE
// being returned from computeResamplingMode.
resampling = RESAMPLE_LINEAR;
}
resampling = limitResamplingMode(platformContext, resampling);
paint.setFilterBitmap(resampling == RESAMPLE_LINEAR);
if (resampling == RESAMPLE_AWESOME)
drawResampledBitmap(*canvas, paint, bitmap, srcRect, destRect);
else {
// No resampling necessary, we can just draw the bitmap. We want to
// filter it if we decided to do linear interpolation above, or if there
// is something interesting going on with the matrix (like a rotation).
// Note: for serialization, we will want to subset the bitmap first so
// we don't send extra pixels.
canvas->drawBitmapRect(bitmap.bitmap(), &srcRect, destRect, &paint);
}
platformContext->didDrawRect(destRect, paint, &bitmap.bitmap());
}
void onDraw(SkCanvas* canvas) override {
SkPaint paint;
SkPath path;
paint.setStyle(SkPaint::Style::kStroke_Style);
canvas->translate(5.0f, 5.0f);
const SkScalar size = 60.0f;
for (int i = 0; i < 2; i++) {
paint.setAntiAlias(i == 1);
for (int j = 0; j < 4; j++) {
SkScalar scale = 4.0f - j;
paint.setStrokeWidth(4.0f / scale);
canvas->save();
canvas->translate(size / 2.0f, size / 2.0f);
canvas->scale(scale, scale);
draw_path(size / 2.0f / scale, canvas, paint);
canvas->restore();
canvas->save();
canvas->translate(size / 2.0f, 80.0f + size / 2.0f);
canvas->scale(scale, scale);
canvas->drawCircle(0.0f, 0.0f, size / 2.0f / scale, paint);
canvas->restore();
canvas->save();
canvas->translate(0.0f, 160.0f);
canvas->scale(scale, scale);
canvas->drawRect(SkRect::MakeXYWH(0.0f, 0.0f, size / scale, size / scale), paint);
canvas->restore();
canvas->save();
canvas->translate(0.0f, 240.0f);
canvas->scale(scale, scale);
canvas->drawLine(0.0f, 0.0f, size / scale, size / scale, paint);
canvas->restore();
canvas->translate(80.0f, 0.0f);
}
}
}
static SkPaint make_paint() {
SkPaint paint;
paint.setHinting(make_paint_hinting());
paint.setAntiAlias(make_bool());
paint.setDither(make_bool());
paint.setLinearText(make_bool());
paint.setSubpixelText(make_bool());
paint.setLCDRenderText(make_bool());
paint.setEmbeddedBitmapText(make_bool());
paint.setAutohinted(make_bool());
paint.setVerticalText(make_bool());
paint.setFakeBoldText(make_bool());
paint.setDevKernText(make_bool());
paint.setFilterQuality(make_filter_quality());
paint.setStyle(make_paint_style());
paint.setColor(make_color());
paint.setStrokeWidth(make_scalar());
paint.setStrokeMiter(make_scalar());
paint.setStrokeCap(make_paint_cap());
paint.setStrokeJoin(make_paint_join());
paint.setColorFilter(make_color_filter());
paint.setBlendMode(make_xfermode());
paint.setPathEffect(make_path_effect());
paint.setMaskFilter(make_mask_filter());
if (false) {
// our validating buffer does not support typefaces yet, so skip this for now
paint.setTypeface(SkTypeface::MakeFromName(make_font_name().c_str(),
make_typeface_style()));
}
paint.setImageFilter(make_image_filter());
sk_sp<SkData> data(make_3Dlut(nullptr, make_bool(), make_bool(), make_bool()));
paint.setTextAlign(make_paint_align());
paint.setTextSize(make_scalar());
paint.setTextScaleX(make_scalar());
paint.setTextSkewX(make_scalar());
paint.setTextEncoding(make_paint_text_encoding());
return paint;
}
virtual void onDraw(SkCanvas* canvas) {
this->drawBG(canvas);
canvas->translate(this->width()/2, this->height()/2);
Sk3DView view;
view.rotateX(fRX);
view.rotateY(fRY);
view.applyToCanvas(canvas);
SkPaint paint;
SkScalar rad = SkIntToScalar(50);
SkScalar dim = rad*2;
if (fShaders.count() > 0) {
bool frontFace = view.dotWithNormal(0, 0, SK_Scalar1) < 0;
if (frontFace != fFrontFace) {
fFrontFace = frontFace;
fShaderIndex = (fShaderIndex + 1) % fShaders.count();
}
paint.setAntiAlias(true);
paint.setShader(fShaders[fShaderIndex]);
#if 0
canvas->drawCircle(0, 0, rad, paint);
canvas->drawCircle(-dim, -dim, rad, paint);
canvas->drawCircle(-dim, dim, rad, paint);
canvas->drawCircle( dim, -dim, rad, paint);
canvas->drawCircle( dim, dim, rad, paint);
#else
SkRect r = { -150, -150, 150, 150 };
canvas->drawRoundRect(r, 30, 30, paint);
#endif
}
fRY += SampleCode::GetAnimSecondsDelta() * 90;
if (fRY >= SkIntToScalar(360)) {
fRY = 0;
}
this->inval(NULL);
}
virtual void onDraw(SkCanvas* canvas) {
static const struct {
SkColor fColor;
const char* fName;
SkRegion::Op fOp;
} gOps[] = {
{ SK_ColorBLACK, "Difference", SkRegion::kDifference_Op },
{ SK_ColorRED, "Intersect", SkRegion::kIntersect_Op },
{ 0xFF008800, "Union", SkRegion::kUnion_Op },
{ SK_ColorGREEN, "Rev Diff", SkRegion::kReverseDifference_Op },
{ SK_ColorYELLOW, "Replace", SkRegion::kReplace_Op },
{ SK_ColorBLUE, "XOR", SkRegion::kXOR_Op },
};
SkPaint textPaint;
textPaint.setAntiAlias(true);
textPaint.setTextSize(SK_Scalar1*24);
int xOff = 0;
for (size_t op = 0; op < SK_ARRAY_COUNT(gOps); op++) {
canvas->drawText(gOps[op].fName, strlen(gOps[op].fName),
SkIntToScalar(75), SkIntToScalar(50),
textPaint);
if (kAAClip_GeomType == fGeomType) {
this->drawRgnOped(canvas, gOps[op].fOp, gOps[op].fColor);
} else {
this->drawPathsOped(canvas, gOps[op].fOp, gOps[op].fColor);
}
if (xOff >= 400) {
canvas->translate(SkIntToScalar(-400), SkIntToScalar(250));
xOff = 0;
} else {
canvas->translate(SkIntToScalar(200), 0);
xOff += 200;
}
}
}
bool RenderThemeChromiumSkia::paintMenuList(RenderObject* o, const RenderObject::PaintInfo& i, const IntRect& rect)
{
SkCanvas* const canvas = i.context->platformContext()->canvas();
const int right = rect.x() + rect.width();
const int middle = rect.y() + rect.height() / 2;
paintButtonLike(this, o, i, rect);
SkPaint paint;
paint.setARGB(0xff, 0, 0, 0);
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kFill_Style);
SkPath path;
path.moveTo(right - 13, middle - 3);
path.rLineTo(6, 0);
path.rLineTo(-3, 6);
path.close();
canvas->drawPath(path, paint);
return false;
}
static void draw_scene(SkCanvas* canvas, SkScalar pictureSize) {
canvas->clear(SK_ColorWHITE);
SkPaint paint;
paint.setColor(SK_ColorGREEN);
paint.setStyle(SkPaint::kFill_Style);
paint.setAntiAlias(true);
canvas->drawCircle(pictureSize / 4, pictureSize / 4, pictureSize / 4, paint);
canvas->drawRect(SkRect::MakeXYWH(pictureSize / 2, pictureSize / 2,
pictureSize / 2, pictureSize / 2), paint);
paint.setColor(SK_ColorRED);
canvas->drawLine(pictureSize / 2, pictureSize * 1 / 3,
pictureSize / 2, pictureSize * 2 / 3, paint);
canvas->drawLine(pictureSize * 1 / 3, pictureSize / 2,
pictureSize * 2 / 3, pictureSize / 2, paint);
paint.setColor(SK_ColorBLACK);
paint.setStyle(SkPaint::kStroke_Style);
canvas->drawRect(SkRect::MakeWH(pictureSize, pictureSize), paint);
}
void onDraw(int loops, SkCanvas* canvas) override {
SkRandom Random;
for (int i = 0; i < loops; i++) {
SkScalar blurSigma = Random.nextRangeScalar(1.5f, 25.0f);
SkScalar size = Random.nextRangeScalar(20*blurSigma, 50*blurSigma);
SkScalar x = Random.nextRangeScalar(0.0f, W - size);
SkScalar y = Random.nextRangeScalar(0.0f, H - size);
SkRect inner = { x, y, x + size, y + size };
SkRect outer(inner);
// outer is always outset either 2x or 4x the blur radius (we go with 2x)
outer.outset(2*blurSigma, 2*blurSigma);
SkPath p;
p.addRect(outer);
p.addRect(inner);
p.setFillType(SkPath::kEvenOdd_FillType);
// This will be used to translate the normal draw outside the
// clip rect and translate the blurred version back inside
SkScalar translate = 2.0f * size;
SkPaint paint;
paint.setLooper(this->createLooper(-translate, blurSigma));
paint.setColor(0xff000000 | Random.nextU());
paint.setAntiAlias(true);
canvas->save();
// clip always equals inner rect so we get the inside blur
canvas->clipRect(inner);
canvas->translate(translate, 0);
canvas->drawPath(p, paint);
canvas->restore();
}
}
virtual void onDrawContent(SkCanvas* canvas) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setStrokeWidth(SkIntToScalar(4));
paint.setTextSize(SkIntToScalar(40));
paint.setTextAlign(SkPaint::kCenter_Align);
canvas->save();
canvas->translate(SkIntToScalar(10), SkIntToScalar(10));
// translate (1 point)
const int src1[] = { 0, 0 };
const int dst1[] = { 5, 5 };
doDraw(canvas, &paint, src1, dst1, 1);
canvas->restore();
canvas->save();
canvas->translate(SkIntToScalar(160), SkIntToScalar(10));
// rotate/uniform-scale (2 points)
const int src2[] = { 32, 32, 64, 32 };
const int dst2[] = { 32, 32, 64, 48 };
doDraw(canvas, &paint, src2, dst2, 2);
canvas->restore();
canvas->save();
canvas->translate(SkIntToScalar(10), SkIntToScalar(110));
// rotate/skew (3 points)
const int src3[] = { 0, 0, 64, 0, 0, 64 };
const int dst3[] = { 0, 0, 96, 0, 24, 64 };
doDraw(canvas, &paint, src3, dst3, 3);
canvas->restore();
canvas->save();
canvas->translate(SkIntToScalar(160), SkIntToScalar(110));
// perspective (4 points)
const int src4[] = { 0, 0, 64, 0, 64, 64, 0, 64 };
const int dst4[] = { 0, 0, 96, 0, 64, 96, 0, 64 };
doDraw(canvas, &paint, src4, dst4, 4);
canvas->restore();
}
void drawPath(SkCanvas* canvas, const SkPath& path, SkPaint::Join j) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeJoin(j);
paint.setStrokeWidth(SkIntToScalar(fStroke));
if (fShowHairline) {
SkPath fill;
paint.getFillPath(path, &fill);
paint.setStrokeWidth(0);
canvas->drawPath(fill, paint);
} else {
canvas->drawPath(path, paint);
}
paint.setColor(SK_ColorRED);
paint.setStrokeWidth(0);
canvas->drawPath(path, paint);
}
UnitMapperView() {
fPts[0].set(0, 0);
fPts[1].set(SK_Scalar1 / 3, SK_Scalar1 / 3);
fPts[2].set(SK_Scalar1 * 2 / 3, SK_Scalar1 * 2 / 3);
fPts[3].set(SK_Scalar1, SK_Scalar1);
fMatrix.setScale(SK_Scalar1 * 200, -SK_Scalar1 * 200);
fMatrix.postTranslate(SkIntToScalar(100), SkIntToScalar(300));
SkRect r = {
SkIntToScalar(350), SkIntToScalar(100),
SkIntToScalar(500), SkIntToScalar(130)
};
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(SkIntToScalar(25));
for (int i = 0; i < 4; i++) {
fViews[i] = make_textview(this, r, paint);
r.offset(0, r.height());
}
this->setViews();
}
SkBitmap create_string_bitmap(int w, int h, SkColor c, int x, int y,
int textSize, const char* str) {
SkBitmap bitmap;
bitmap.allocN32Pixels(w, h);
SkCanvas canvas(bitmap);
SkPaint paint;
paint.setAntiAlias(true);
sk_tool_utils::set_portable_typeface(&paint);
paint.setColor(c);
paint.setTextSize(SkIntToScalar(textSize));
canvas.clear(0x00000000);
canvas.drawString(str, SkIntToScalar(x), SkIntToScalar(y), paint);
// Tag data as sRGB (without doing any color space conversion). Color-space aware configs
// will process this correctly but legacy configs will render as if this returned N32.
SkBitmap result;
result.setInfo(SkImageInfo::MakeS32(w, h, kPremul_SkAlphaType));
result.setPixelRef(sk_ref_sp(bitmap.pixelRef()), 0, 0);
return result;
}
void drawContent(SkCanvas* canvas) {
canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
SkPaint paint;
sk_tool_utils::set_portable_typeface(&paint);
paint.setColor(0x80F60000);
const Proc procs[] = {
draw_hair, draw_thick, draw_rect, draw_oval, draw_text
};
const SkXfermode::Mode modes[] = {
SkXfermode::kSrcOver_Mode, SkXfermode::kSrc_Mode, SkXfermode::kClear_Mode
};
const PaintProc paintProcs[] = {
identity_paintproc, gradient_paintproc
};
for (int aa = 0; aa <= 1; ++aa) {
paint.setAntiAlias(SkToBool(aa));
canvas->save();
for (size_t i = 0; i < SK_ARRAY_COUNT(paintProcs); ++i) {
paintProcs[i](&paint);
for (size_t x = 0; x < SK_ARRAY_COUNT(modes); ++x) {
paint.setXfermodeMode(modes[x]);
canvas->save();
for (size_t y = 0; y < SK_ARRAY_COUNT(procs); ++y) {
procs[y](canvas, paint);
canvas->translate(0, H * 5 / 4);
}
canvas->restore();
canvas->translate(W * 5 / 4, 0);
}
}
canvas->restore();
canvas->translate(0, (H * 5 / 4) * SK_ARRAY_COUNT(procs));
}
}
void GM::DrawGpuOnlyMessage(SkCanvas* canvas) {
SkBitmap bmp;
bmp.allocN32Pixels(128, 64);
SkCanvas bmpCanvas(bmp);
bmpCanvas.drawColor(SK_ColorWHITE);
SkPaint paint;
paint.setAntiAlias(true);
paint.setTextSize(20);
paint.setColor(SK_ColorRED);
sk_tool_utils::set_portable_typeface(&paint);
static const char kTxt[] = "GPU Only";
bmpCanvas.drawText(kTxt, strlen(kTxt), 20, 40, paint);
SkMatrix localM;
localM.setRotate(35.f);
localM.postTranslate(10.f, 0.f);
paint.setShader(SkShader::MakeBitmapShader(bmp, SkShader::kMirror_TileMode,
SkShader::kMirror_TileMode,
&localM));
paint.setFilterQuality(kMedium_SkFilterQuality);
canvas->drawPaint(paint);
return;
}
/**
* Draw a single path element of the clip stack into the accumulation bitmap
*/
void GrSWMaskHelper::drawShape(const GrShape& shape, const SkMatrix& matrix, SkRegion::Op op,
GrAA aa, uint8_t alpha) {
SkPaint paint;
paint.setPathEffect(shape.style().refPathEffect());
shape.style().strokeRec().applyToPaint(&paint);
paint.setAntiAlias(GrAA::kYes == aa);
SkMatrix translatedMatrix = matrix;
translatedMatrix.postTranslate(fTranslate.fX, fTranslate.fY);
fDraw.fMatrix = &translatedMatrix;
SkPath path;
shape.asPath(&path);
if (SkRegion::kReplace_Op == op && 0xFF == alpha) {
SkASSERT(0xFF == paint.getAlpha());
fDraw.drawPathCoverage(path, paint);
} else {
paint.setBlendMode(op_to_mode(op));
paint.setColor(SkColorSetARGB(alpha, alpha, alpha, alpha));
fDraw.drawPath(path, paint);
}
};
void draw(SkCanvas* canvas) {
auto drawImage = [=](sk_sp<SkImage> image, const char* label) -> void {
if (nullptr == image) {
return;
}
SkPaint paint;
paint.setAntiAlias(true);
canvas->drawImage(image, 0, 0);
canvas->drawString(label, 30, image->height() / 4, paint);
canvas->drawString(image->isTextureBacked() ? "is GPU texture" : "not GPU texture",
20, image->height() * 3 / 4, paint);
};
sk_sp<SkImage> bitmapImage(SkImage::MakeFromBitmap(source));
sk_sp<SkImage> textureImage(SkImage::MakeFromTexture(canvas->getGrContext(), backEndTexture,
kTopLeft_GrSurfaceOrigin, kRGBA_8888_SkColorType,
kOpaque_SkAlphaType, nullptr));
drawImage(image, "image");
canvas->translate(image->width(), 0);
drawImage(bitmapImage, "source");
canvas->translate(-image->width(), image->height());
drawImage(textureImage, "backEndTexture");
}
void draw1x4(SkCanvas* canvas, SkScalar x, SkScalar y) {
SkRect rect = { -kHalfSquareSize, -kHalfSquareSize, kHalfSquareSize, kHalfSquareSize };
rect.offset(x, y);
SkRect outerClip = {
-kHalfOuterClipSize-kHalfSquareSize, -kHalfOuterClipSize-kHalfSquareSize,
kHalfOuterClipSize+kHalfSquareSize, kHalfOuterClipSize+kHalfSquareSize
};
outerClip.offset(x, y);
SkPaint paint;
paint.setAntiAlias(true);
paint.setLooper(create4Looper(-kOffsetToOutsideClip-kHalfSquareSize, 0));
canvas->save();
canvas->clipRect(outerClip, SkCanvas::kIntersect_Op);
canvas->clipRect(rect, SkCanvas::kDifference_Op);
rect.offset(SkIntToScalar(kOffsetToOutsideClip+kHalfSquareSize), 0);
canvas->drawRect(rect, paint);
canvas->restore();
}
static sk_sp<SkImage> MakeImage(const SkVector& vec, SkColor color) {
const SkPoint start = SkPoint::Make(vec.y() * kSegLen / 2, vec.x() * kSegLen / 2);
const SkPoint end = SkPoint::Make(start.x() + vec.x() * (kSegLen - 1),
start.y() + vec.y() * (kSegLen - 1));
SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterN32Premul(kSegLen, kSegLen));
surface->getCanvas()->clear(SK_ColorTRANSPARENT);
SkPaint paint;
paint.setAntiAlias(true);
const SkRect border = SkRect::MakeIWH(kSegLen, kSegLen).makeInset(.5f, .5f);
paint.setColor(SK_ColorBLUE);
paint.setStyle(SkPaint::kStroke_Style);
surface->getCanvas()->drawRect(border, paint);
paint.setColor(SK_ColorBLACK);
surface->getCanvas()->drawLine(start.x(), start.y(), end.x(), end.y(), paint);
surface->getCanvas()->drawPoint(start.x(), start.y(), color);
surface->getCanvas()->drawPoint(end.x(), end.y(), color);
return surface->makeImageSnapshot();
}
virtual void onDrawContent(SkCanvas* canvas) {
SkPaint paint;
paint.setAntiAlias(true);
paint.setStyle(SkPaint::kStroke_Style);
paint.setStrokeWidth(SkIntToScalar(20));
SkPaint hair;
hair.setStyle(SkPaint::kStroke_Style);
hair.setColor(SK_ColorRED);
static const SkISize gSize[] = {
{ 100, 50 },
{ 100, 0 },
{ 0, 50 },
{ 0, 0 }
};
static const SkPaint::Join gJoin[] = {
SkPaint::kMiter_Join,
SkPaint::kRound_Join,
SkPaint::kBevel_Join
};
canvas->translate(paint.getStrokeWidth(), paint.getStrokeWidth());
for (size_t i = 0; i < SK_ARRAY_COUNT(gJoin); ++i) {
paint.setStrokeJoin(gJoin[i]);
canvas->save();
for (size_t j = 0; j < SK_ARRAY_COUNT(gSize); ++j) {
SkRect r = SkRect::MakeWH(SkIntToScalar(gSize[j].fWidth),
SkIntToScalar(gSize[j].fHeight));
canvas->drawRect(r, paint);
canvas->drawRect(r, hair);
canvas->translate(0, SkIntToScalar(100));
}
canvas->restore();
canvas->translate(SkIntToScalar(150), 0);
}
}