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-rw-r--r--fuzz/FuzzCanvas.cpp208
1 files changed, 135 insertions, 73 deletions
diff --git a/fuzz/FuzzCanvas.cpp b/fuzz/FuzzCanvas.cpp
index 8fd8236237..b893fc5559 100644
--- a/fuzz/FuzzCanvas.cpp
+++ b/fuzz/FuzzCanvas.cpp
@@ -11,6 +11,7 @@
// CORE
#include "SkCanvas.h"
#include "SkColorFilter.h"
+#include "SkFontMgr.h"
#include "SkImageFilter.h"
#include "SkMaskFilter.h"
#include "SkPathEffect.h"
@@ -29,15 +30,10 @@
// TODO:
// SkCanvas::drawTextBlob
// SkCanvas::drawTextRSXform
-// SkPaint::kGlyphID_TextEncoding
-// SkPaint::kUTF16_TextEncoding
-// SkPaint::kUTF32_TextEncoding
// SkColorFilter
// SkImageFilter
// SkMaskFilter
// SkPathEffect
-// SkPictureShader
-// SkTypeface
template <typename T, void (SkPaint::*S)(T)>
inline void fuzz_input(Fuzz* fuzz, SkPaint* paint) {
@@ -178,8 +174,11 @@ template <> inline void Fuzz::next(SkBlendMode* mode) {
}
sk_sp<SkImage> MakeFuzzImage(Fuzz*);
+
SkBitmap MakeFuzzBitmap(Fuzz*);
+static sk_sp<SkPicture> make_picture(Fuzz*, int depth);
+
sk_sp<SkColorFilter> MakeColorFilter(Fuzz* fuzz) { return nullptr; /*TODO*/ }
void make_pos(Fuzz* fuzz, SkScalar* pos, int colorCount) {
@@ -210,7 +209,7 @@ sk_sp<SkShader> MakeFuzzShader(Fuzz* fuzz, int depth) {
if (depth <= 0) {
return nullptr;
}
- fuzz->nextRange(&shaderType, 0, 13);
+ fuzz->nextRange(&shaderType, 0, 14);
switch (shaderType) {
case 0:
return nullptr;
@@ -246,10 +245,26 @@ sk_sp<SkShader> MakeFuzzShader(Fuzz* fuzz, int depth) {
shader2 = MakeFuzzShader(fuzz, depth - 1);
fuzz->next(&blendMode);
return SkShader::MakeComposeShader(std::move(shader1), std::move(shader2), blendMode);
- // EFFECTS:
case 8:
- return SkGaussianEdgeShader::Make();
+ {
+ auto pic = make_picture(fuzz, depth);
+ bool useTile;
+ SkRect tile;
+ fuzz->next(&tmX, &tmY, &useMatrix, &useTile);
+ if (useMatrix) {
+ fuzz->next(&matrix);
+ }
+ if (useTile) {
+ fuzz->next(&tile);
+ }
+ return SkShader::MakePictureShader(std::move(pic), tmX, tmY,
+ useMatrix ? &matrix : nullptr,
+ useTile ? &tile : nullptr);
+ }
+ // EFFECTS:
case 9:
+ return SkGaussianEdgeShader::Make();
+ case 10:
{
constexpr int kMaxColors = 12;
SkPoint pts[2];
@@ -274,7 +289,7 @@ sk_sp<SkShader> MakeFuzzShader(Fuzz* fuzz, int depth) {
tmX, 0,
useMatrix ? &matrix : nullptr);
}
- case 10:
+ case 11:
{
constexpr int kMaxColors = 12;
SkPoint center;
@@ -297,7 +312,7 @@ sk_sp<SkShader> MakeFuzzShader(Fuzz* fuzz, int depth) {
colorCount, tmX, 0,
useMatrix ? &matrix : nullptr);
}
- case 11:
+ case 12:
{
constexpr int kMaxColors = 12;
SkPoint start, end;
@@ -320,7 +335,7 @@ sk_sp<SkShader> MakeFuzzShader(Fuzz* fuzz, int depth) {
colorCount, tmX, 0,
useMatrix ? &matrix : nullptr);
}
- case 12:
+ case 13:
{
constexpr int kMaxColors = 12;
SkScalar cx, cy;
@@ -340,7 +355,7 @@ sk_sp<SkShader> MakeFuzzShader(Fuzz* fuzz, int depth) {
return SkGradientShader::MakeSweep(cx, cy, colors, usePos ? pos : nullptr,
colorCount, 0, useMatrix ? &matrix : nullptr);
}
- case 13:
+ case 14:
{
SkScalar baseFrequencyX, baseFrequencyY, seed;
int numOctaves;
@@ -372,7 +387,20 @@ sk_sp<SkPathEffect> MakeFuzzPathEffect(Fuzz* fuzz) { return nullptr; /*TODO*/ }
sk_sp<SkMaskFilter> MakeFuzzMaskFilter(Fuzz* fuzz) { return nullptr; /*TODO*/ }
-sk_sp<SkTypeface> MakeFuzzTypeface(Fuzz* fuzz) { return nullptr; /*TODO*/ }
+sk_sp<SkTypeface> MakeFuzzTypeface(Fuzz* fuzz) {
+ if (make_bool(fuzz)) {
+ return nullptr;
+ }
+ auto fontMugger = SkFontMgr::RefDefault();
+ SkASSERT(fontMugger);
+ int familyCount = fontMugger->countFamilies();
+ int i, j;
+ fuzz->nextRange(&i, 0, familyCount - 1);
+ sk_sp<SkFontStyleSet> family(fontMugger->createStyleSet(i));
+ int styleCount = family->count();
+ fuzz->nextRange(&j, 0, styleCount - 1);
+ return sk_sp<SkTypeface>(family->createTypeface(j));
+}
sk_sp<SkImageFilter> MakeFuzzImageFilter(Fuzz* fuzz) { return nullptr; /*TODO*/ }
@@ -410,47 +438,6 @@ SkBitmap MakeFuzzBitmap(Fuzz* fuzz) {
return bitmap;
}
-
-SkString MakeRandomUtf8(Fuzz* fuzz) {
- SkString result;
- const SkUnichar ranges[][2] = {
- {0x0020, 0x007F},
- {0x00A1, 0x0250},
- {0x0400, 0x0500},
- };
- int32_t count = 0;
- for (size_t i = 0; i < SK_ARRAY_COUNT(ranges); ++i){
- count += (ranges[i][1] - ranges[i][0]);
- }
- constexpr int kMaxLength = 30;
- SkUnichar buffer[kMaxLength];
- int length;
- fuzz->nextRange(&length, 1, kMaxLength);
- size_t utf8len = 0;
- for (int j = 0; j < length; ++j) {
- int32_t value;
- fuzz->nextRange(&value, 0, count);
- for (size_t i = 0; i < SK_ARRAY_COUNT(ranges); ++i){
- if (value + ranges[i][0] < ranges[i][1]) {
- buffer[j] = value + ranges[i][0];
- break;
- } else {
- value -= (ranges[i][1] - ranges[i][0]);
- }
- }
- utf8len += SkUTF8_FromUnichar(buffer[j], nullptr);
- }
- result.resize(utf8len);
- char* ptr = result.writable_str();
- for (int j = 0; j < length; ++j) {
- ptr += SkUTF8_FromUnichar(buffer[j], ptr);
- }
- return result;
-};
-
-
-
-
void FuzzPaint(Fuzz* fuzz, SkPaint* paint, int depth) {
if (!fuzz || !paint || depth <= 0) {
return;
@@ -499,13 +486,81 @@ void FuzzPaintText(Fuzz* fuzz, SkPaint* paint) {
fuzz_input<bool, &SkPaint::setDevKernText>(fuzz, paint);
fuzz_enum_input<SkPaint::Align, &SkPaint::setTextAlign>(fuzz, paint, SkPaint::kLeft_Align,
SkPaint::kRight_Align);
- paint->setTextEncoding(SkPaint::kUTF8_TextEncoding);
- // TODO: handle other encodings.
- // fuzz_enum_input<SkPaint::TextEncoding, &SkPaint::setTextEncoding>(
- // fuzz, paint, SkPaint::kUTF8_TextEncoding, SkPaint::kGlyphID_TextEncoding);
+ fuzz_enum_input<SkPaint::TextEncoding, &SkPaint::setTextEncoding>(
+ fuzz, paint, SkPaint::kUTF8_TextEncoding, SkPaint::kGlyphID_TextEncoding);
+}
+
+SkTDArray<uint8_t> fuzz_text(Fuzz* fuzz, const SkPaint& paint) {
+ SkTDArray<uint8_t> array;
+ if (SkPaint::kGlyphID_TextEncoding == paint.getTextEncoding()) {
+ int glyphRange = paint.getTypeface()
+ ? paint.getTypeface()->countGlyphs()
+ : SkTypeface::MakeDefault()->countGlyphs();
+ constexpr int kMaxGlyphCount = 20;
+ int glyphCount;
+ fuzz->nextRange(&glyphCount, 0, kMaxGlyphCount);
+ SkGlyphID* glyphs = (SkGlyphID*)array.append(glyphCount * sizeof(SkGlyphID));
+ for (int i = 0; i < glyphCount; ++i) {
+ fuzz->nextRange(&glyphs[i], 0, glyphRange - 1);
+ }
+ return array;
+ }
+ static const SkUnichar ranges[][2] = {
+ {0x0020, 0x007F},
+ {0x00A1, 0x0250},
+ {0x0400, 0x0500},
+ };
+ int32_t count = 0;
+ for (size_t i = 0; i < SK_ARRAY_COUNT(ranges); ++i){
+ count += (ranges[i][1] - ranges[i][0]);
+ }
+ constexpr int kMaxLength = 30;
+ SkUnichar buffer[kMaxLength];
+ int length;
+ fuzz->nextRange(&length, 1, kMaxLength);
+ for (int j = 0; j < length; ++j) {
+ int32_t value;
+ fuzz->nextRange(&value, 0, count - 1);
+ for (size_t i = 0; i < SK_ARRAY_COUNT(ranges); ++i){
+ if (value + ranges[i][0] < ranges[i][1]) {
+ buffer[j] = value + ranges[i][0];
+ break;
+ } else {
+ value -= (ranges[i][1] - ranges[i][0]);
+ }
+ }
+ }
+ switch (paint.getTextEncoding()) {
+ case SkPaint::kUTF8_TextEncoding:
+ {
+ size_t utf8len = 0;
+ for (int j = 0; j < length; ++j) {
+ utf8len += SkUTF8_FromUnichar(buffer[j], nullptr);
+ }
+ char* ptr = (char*)array.append(utf8len);
+ for (int j = 0; j < length; ++j) {
+ ptr += SkUTF8_FromUnichar(buffer[j], ptr);
+ }
+ }
+ case SkPaint::kUTF16_TextEncoding:
+ {
+ size_t utf16len = 0;
+ for (int j = 0; j < length; ++j) {
+ utf16len += SkUTF16_FromUnichar(buffer[j]);
+ }
+ uint16_t* ptr = (uint16_t*)array.append(utf16len);
+ for (int j = 0; j < length; ++j) {
+ ptr += SkUTF16_FromUnichar(buffer[j], ptr);
+ }
+ }
+ case SkPaint::kUTF32_TextEncoding:
+ memcpy(array.append(length * sizeof(SkUnichar)), buffer, length * sizeof(SkUnichar));
+ default:
+ SkASSERT(false);
+ }
+ return array;
}
-static sk_sp<SkPicture> make_picture(Fuzz*, int depth);
void fuzz_canvas(Fuzz* fuzz, SkCanvas* canvas, int depth = 4) {
if (!fuzz || !canvas || depth <= 0) {
@@ -915,23 +970,25 @@ void fuzz_canvas(Fuzz* fuzz, SkCanvas* canvas, int depth = 4) {
break;
}
case 45: {
+ FuzzPaint(fuzz, &paint, depth);
FuzzPaintText(fuzz, &paint);
- SkString str = MakeRandomUtf8(fuzz);
SkScalar x, y;
fuzz->next(&x, &y);
- canvas->drawText(str.c_str(), str.size(), x, y, paint);
+ SkTDArray<uint8_t> text = fuzz_text(fuzz, paint);
+ canvas->drawText(text.begin(), SkToSizeT(text.count()), x, y, paint);
break;
}
case 46: {
+ FuzzPaint(fuzz, &paint, depth);
FuzzPaintText(fuzz, &paint);
- SkString str = MakeRandomUtf8(fuzz);
- int glyphCount = paint.countText(str.c_str(), str.size());
+ SkTDArray<uint8_t> text = fuzz_text(fuzz, paint);
+ int glyphCount = paint.countText(text.begin(), SkToSizeT(text.count()));
if (glyphCount < 1) {
break;
}
SkAutoTMalloc<SkPoint> pos(glyphCount);
SkAutoTMalloc<SkScalar> widths(glyphCount);
- paint.getTextWidths(str.c_str(), str.size(), widths.get());
+ paint.getTextWidths(text.begin(), SkToSizeT(text.count()), widths.get());
pos[0] = {0, 0};
for (int i = 1; i < glyphCount; ++i) {
float y;
@@ -939,18 +996,19 @@ void fuzz_canvas(Fuzz* fuzz, SkCanvas* canvas, int depth = 4) {
0.5f * paint.getTextSize());
pos[i] = {pos[i - 1].x() + widths[i - 1], y};
}
- canvas->drawPosText(str.c_str(), str.size(), pos.get(), paint);
+ canvas->drawPosText(text.begin(), SkToSizeT(text.count()), pos.get(), paint);
break;
}
case 47: {
+ FuzzPaint(fuzz, &paint, depth);
FuzzPaintText(fuzz, &paint);
- SkString str = MakeRandomUtf8(fuzz);
- int glyphCount = paint.countText(str.c_str(), str.size());
+ SkTDArray<uint8_t> text = fuzz_text(fuzz, paint);
+ int glyphCount = paint.countText(text.begin(), SkToSizeT(text.count()));
SkAutoTMalloc<SkScalar> widths(glyphCount);
if (glyphCount < 1) {
break;
}
- paint.getTextWidths(str.c_str(), str.size(), widths.get());
+ paint.getTextWidths(text.begin(), SkToSizeT(text.count()), widths.get());
SkScalar x = widths[0];
for (int i = 0; i < glyphCount; ++i) {
SkTSwap(x, widths[i]);
@@ -962,17 +1020,20 @@ void fuzz_canvas(Fuzz* fuzz, SkCanvas* canvas, int depth = 4) {
}
SkScalar y;
fuzz->next(&y);
- canvas->drawPosTextH(str.c_str(), str.size(), widths.get(), y, paint);
+ canvas->drawPosTextH(text.begin(), SkToSizeT(text.count()),
+ widths.get(), y, paint);
break;
}
case 48: {
+ FuzzPaint(fuzz, &paint, depth);
FuzzPaintText(fuzz, &paint);
- SkString str = MakeRandomUtf8(fuzz);
+ SkTDArray<uint8_t> text = fuzz_text(fuzz, paint);
SkPath path;
fuzz_path<20>(fuzz, &path);
SkScalar hOffset, vOffset;
fuzz->next(&hOffset, &vOffset);
- canvas->drawTextOnPathHV(str.c_str(), str.size(), path, hOffset, vOffset, paint);
+ canvas->drawTextOnPathHV(text.begin(), SkToSizeT(text.count()),
+ path, hOffset, vOffset, paint);
break;
}
case 49: {
@@ -981,11 +1042,12 @@ void fuzz_canvas(Fuzz* fuzz, SkCanvas* canvas, int depth = 4) {
if (useMatrix) {
fuzz->next(&matrix);
}
+ FuzzPaint(fuzz, &paint, depth);
FuzzPaintText(fuzz, &paint);
- SkString str = MakeRandomUtf8(fuzz);
+ SkTDArray<uint8_t> text = fuzz_text(fuzz, paint);
SkPath path;
fuzz_path<20>(fuzz, &path);
- canvas->drawTextOnPath(str.c_str(), str.size(), path,
+ canvas->drawTextOnPath(text.begin(), SkToSizeT(text.count()), path,
useMatrix ? &matrix : nullptr, paint);
break;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-26 19:09:16 +0000