static void fuzz_drawImage(Fuzz* fuzz) {
SkPaint p;
init_paint(fuzz, &p);
sk_sp<SkSurface> surface;
init_surface(fuzz, &surface);
SkBitmap bmp;
init_bitmap(fuzz, &bmp);
sk_sp<SkImage> image(SkImage::MakeFromBitmap(bmp));
bool bl;
fuzz->next(&bl);
SkScalar a, b;
fuzz->next(&a, &b);
if (bl) {
surface->getCanvas()->drawImage(image, a, b, &p);
}
else {
SkRect dst = SkRect::MakeWH(a, b);
fuzz->next(&a, &b);
SkRect src = SkRect::MakeWH(a, b);
uint8_t x;
fuzz->nextRange(&x, 0, 1);
SkCanvas::SrcRectConstraint cst = (SkCanvas::SrcRectConstraint)x;
surface->getCanvas()->drawImageRect(image, src, dst, &p, cst);
}
}
static void init_bitmap(Fuzz* fuzz, SkBitmap* bmp) {
uint8_t colorType;
fuzz->nextRange(&colorType, 0, (int)kLastEnum_SkColorType);
// ColorType needs to match what the system configuration is.
if (colorType == kRGBA_8888_SkColorType || colorType == kBGRA_8888_SkColorType) {
colorType = kN32_SkColorType;
}
bool b;
fuzz->next(&b);
SkImageInfo info = SkImageInfo::Make(kBmpSize,
kBmpSize,
(SkColorType)colorType,
b ? kOpaque_SkAlphaType : kPremul_SkAlphaType);
if (!bmp->tryAllocPixels(info)) {
SkDEBUGF("Bitmap not allocated\n");
}
SkColor c;
fuzz->next(&c);
bmp->eraseColor(c);
fuzz->next(&b);
SkPaint p;
if (b) {
init_paint(fuzz, &p);
}
else {
fuzz->next(&c);
p.setColor(c);
}
}
static void fuzz_drawPaint(Fuzz* fuzz) {
SkPaint l, p;
init_paint(fuzz, &p);
sk_sp<SkSurface> surface;
init_surface(fuzz, &surface);
surface->getCanvas()->drawPaint(p);
}
static void fuzz_drawLine(Fuzz* fuzz) {
SkPaint p;
init_paint(fuzz, &p);
sk_sp<SkSurface> surface;
init_surface(fuzz, &surface);
SkScalar a, b, c, d;
fuzz->next(&a, &b, &c, &d);
surface->getCanvas()->drawLine(a, b, c, d, p);
}
static void fuzz_drawBitmap(Fuzz* fuzz) {
SkPaint p;
init_paint(fuzz, &p);
sk_sp<SkSurface> surface;
init_surface(fuzz, &surface);
SkBitmap bmp;
init_bitmap(fuzz, &bmp);
SkScalar a, b;
fuzz->next(&a, &b);
surface->getCanvas()->drawBitmap(bmp, a, b, &p);
}
static void fuzz_drawText(Fuzz* fuzz, sk_sp<SkTypeface> font) {
SkPaint p;
init_paint(fuzz, &p);
sk_sp<SkSurface> surface;
init_surface(fuzz, &surface);
char text[kTxtLen];
init_string(fuzz, text, kTxtLen);
SkScalar x, y;
fuzz->next(&x, &y);
// populate pts array
SkPoint pts[kPtsLen];
for (uint8_t i = 0; i < kPtsLen; ++i) {
pts[i].set(x, y);
x += p.getTextSize();
}
p.setTypeface(font);
// set text related attributes
bool b;
fuzz->next(&b);
p.setAutohinted(b);
fuzz->next(&b);
p.setDevKernText(b);
fuzz->next(&b);
p.setEmbeddedBitmapText(b);
fuzz->next(&b);
p.setFakeBoldText(b);
fuzz->next(&b);
p.setLCDRenderText(b);
fuzz->next(&b);
p.setLinearText(b);
fuzz->next(&b);
p.setSubpixelText(b);
fuzz->next(&x);
p.setTextScaleX(x);
fuzz->next(&x);
p.setTextSkewX(x);
fuzz->next(&x);
p.setTextSize(x);
fuzz->next(&b);
p.setVerticalText(b);
SkCanvas* cnv = surface->getCanvas();
cnv->drawPosText(text, (kTxtLen-1), pts, p);
fuzz->next(&x);
fuzz->next(&y);
cnv->drawText(text, (kTxtLen-1), x, y, p);
}
static void fuzz_drawPath(Fuzz* fuzz) {
SkPaint p;
init_paint(fuzz, &p);
sk_sp<SkSurface> surface;
init_surface(fuzz, &surface);
// TODO(kjlubick): put the ability to fuzz a path in shared file, with
// other common things (e.g. rects, lines)
uint8_t i, j;
fuzz->nextRange(&i, 0, 10); // set i to number of operations to perform
SkPath path;
SkScalar a, b, c, d, e, f;
for (int k = 0; k < i; ++k) {
fuzz->nextRange(&j, 0, 5); // set j to choose operation to perform
switch (j) {
case 0:
fuzz->next(&a, &b);
path.moveTo(a, b);
break;
case 1:
fuzz->next(&a, &b);
path.lineTo(a, b);
break;
case 2:
fuzz->next(&a, &b, &c, &d);
path.quadTo(a, b, c, d);
break;
case 3:
fuzz->next(&a, &b, &c, &d, &e);
path.conicTo(a, b, c, d, e);
break;
case 4:
fuzz->next(&a, &b, &c, &d, &e, &f);
path.cubicTo(a, b, c, d, e, f);
break;
case 5:
fuzz->next(&a, &b, &c, &d, &e);
path.arcTo(a, b, c, d, e);
break;
}
}
path.close();
SkCanvas* cnv = surface->getCanvas();
cnv->drawPath(path, p);
bool bl;
fuzz->next(&bl);
cnv->clipPath(path, kIntersect_SkClipOp, bl);
}
static void fuzz_drawText(Fuzz* fuzz, sk_sp<SkTypeface> typeface) {
SkFont font(typeface);
SkPaint p;
init_paint(fuzz, &p);
sk_sp<SkSurface> surface;
init_surface(fuzz, &surface);
char text[kTxtLen];
init_string(fuzz, text, kTxtLen);
SkScalar x, y;
fuzz->next(&x, &y);
// populate pts array
SkPoint pts[kPtsLen];
for (uint8_t i = 0; i < kPtsLen; ++i) {
pts[i].set(x, y);
x += font.getSize();
}
bool b;
fuzz->next(&b);
font.setForceAutoHinting(b);
fuzz->next(&b);
font.setEmbeddedBitmaps(b);
fuzz->next(&b);
font.setEmbolden(b);
fuzz->next(&b);
font.setEdging(b ? SkFont::Edging::kAntiAlias : SkFont::Edging::kSubpixelAntiAlias);
fuzz->next(&b);
font.setLinearMetrics(b);
fuzz->next(&b);
font.setSubpixel(b);
fuzz->next(&x);
font.setScaleX(x);
fuzz->next(&x);
font.setSkewX(x);
fuzz->next(&x);
font.setSize(x);
SkCanvas* cnv = surface->getCanvas();
fuzz->next(&x);
fuzz->next(&y);
cnv->drawTextBlob(SkTextBlob::MakeFromPosText(text, kTxtLen-1, pts, font), x, y, p);
}
static void fuzz_drawRect(Fuzz* fuzz) {
SkPaint p;
init_paint(fuzz, &p);
sk_sp<SkSurface> surface;
init_surface(fuzz, &surface);
SkScalar a, b, c, d;
fuzz->next(&a, &b, &c, &d);
SkRect r;
r = SkRect::MakeXYWH(a, b, c, d);
SkCanvas* cnv = surface->getCanvas();
cnv->drawRect(r, p);
bool bl;
fuzz->next(&bl);
fuzz->next(&a, &b, &c, &d);
r = SkRect::MakeXYWH(a, b, c, d);
cnv->clipRect(r, kIntersect_SkClipOp, bl);
}
