| /* |
| * Copyright 2013 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| #include "Fuzz.h" |
| #include "Sk1DPathEffect.h" |
| #include "Sk2DPathEffect.h" |
| #include "SkAlphaThresholdFilter.h" |
| #include "SkArcToPathEffect.h" |
| #include "SkBlurImageFilter.h" |
| #include "SkBlurMaskFilter.h" |
| #include "SkCanvas.h" |
| #include "SkColorCubeFilter.h" |
| #include "SkColorFilter.h" |
| #include "SkColorFilterImageFilter.h" |
| #include "SkColorMatrixFilter.h" |
| #include "SkComposeImageFilter.h" |
| #include "SkCornerPathEffect.h" |
| #include "SkDashPathEffect.h" |
| #include "SkData.h" |
| #include "SkDiscretePathEffect.h" |
| #include "SkDisplacementMapEffect.h" |
| #include "SkDropShadowImageFilter.h" |
| #include "SkEmbossMaskFilter.h" |
| #include "SkFlattenableSerialization.h" |
| #include "SkImageSource.h" |
| #include "SkLayerRasterizer.h" |
| #include "SkLightingImageFilter.h" |
| #include "SkLumaColorFilter.h" |
| #include "SkMagnifierImageFilter.h" |
| #include "SkMatrixConvolutionImageFilter.h" |
| #include "SkMergeImageFilter.h" |
| #include "SkMorphologyImageFilter.h" |
| #include "SkOffsetImageFilter.h" |
| #include "SkPaintImageFilter.h" |
| #include "SkPerlinNoiseShader.h" |
| #include "SkPictureImageFilter.h" |
| #include "SkPictureRecorder.h" |
| #include "SkPoint3.h" |
| #include "SkRandom.h" |
| #include "SkTableColorFilter.h" |
| #include "SkTileImageFilter.h" |
| #include "SkTypeface.h" |
| #include "SkXfermodeImageFilter.h" |
| #include <cmath> |
| #include <stdio.h> |
| #include <time.h> |
| |
| #define SK_ADD_RANDOM_BIT_FLIPS |
| |
| static Fuzz* fuzz; |
| static const int kBitmapSize = 24; |
| |
| |
| // There should be no more than one make_* used as a function argument. |
| static bool make_bool() { |
| bool b; fuzz->next(&b); |
| return b; |
| } |
| |
| static float make_number(bool positiveOnly) { |
| float f; |
| fuzz->next(&f); |
| if (positiveOnly) { |
| return std::abs(f); |
| } |
| return f; |
| } |
| |
| static SkString make_string() { |
| int length; |
| fuzz->nextRange(&length, 0, 1000); |
| SkString str(length); |
| for (int i = 0; i < length; ++i) { |
| char c; |
| fuzz->nextRange(&c, 0, 255); |
| str[i] = c; |
| } |
| return str; |
| } |
| |
| static SkString make_font_name() { |
| int sel; |
| fuzz->nextRange(&sel, 0, 7); |
| |
| switch(sel) { |
| case 0: return SkString("Courier New"); |
| case 1: return SkString("Helvetica"); |
| case 2: return SkString("monospace"); |
| case 3: return SkString("sans-serif"); |
| case 4: return SkString("serif"); |
| case 5: return SkString("Times"); |
| case 6: return SkString("Times New Roman"); |
| case 7: |
| default: |
| return make_string(); |
| } |
| } |
| |
| static SkRect make_rect() { |
| SkScalar w, h; |
| fuzz->nextRange(&w, 0.0f, (float) kBitmapSize-1); |
| fuzz->nextRange(&h, 0.0f, (float) kBitmapSize-1); |
| return SkRect::MakeWH(w, h); |
| } |
| |
| static SkRegion make_region() { |
| int32_t x, y, w, h; |
| fuzz->nextRange(&x, 0, kBitmapSize-1); |
| fuzz->nextRange(&y, 0, kBitmapSize-1); |
| fuzz->nextRange(&w, 0, kBitmapSize-1); |
| fuzz->nextRange(&h, 0, kBitmapSize-1); |
| SkIRect iRegion = SkIRect::MakeXYWH(x,y,w,h); |
| return SkRegion(iRegion); |
| } |
| |
| static void init_matrix(SkMatrix* m) { |
| SkScalar mat[9]; |
| fuzz->nextN(mat, 9); |
| m->set9(mat); |
| } |
| |
| static SkBlendMode make_blendmode() { |
| uint8_t i; |
| fuzz->nextRange(&i, 0, (uint8_t)SkBlendMode::kLastMode); |
| return static_cast<SkBlendMode>(i); |
| } |
| |
| static SkPaint::Align make_paint_align() { |
| uint8_t i; |
| fuzz->nextRange(&i, 0, (uint8_t)SkPaint::kRight_Align); |
| return static_cast<SkPaint::Align>(i); |
| } |
| |
| static SkPaint::Hinting make_paint_hinting() { |
| uint8_t i; |
| fuzz->nextRange(&i, 0, (uint8_t)SkPaint::kFull_Hinting); |
| return static_cast<SkPaint::Hinting>(i); |
| } |
| |
| static SkPaint::Style make_paint_style() { |
| uint8_t i; |
| fuzz->nextRange(&i, 0, (uint8_t)SkPaint::kStrokeAndFill_Style); |
| return static_cast<SkPaint::Style>(i); |
| } |
| |
| static SkPaint::Cap make_paint_cap() { |
| uint8_t i; |
| fuzz->nextRange(&i, 0, (uint8_t)SkPaint::kDefault_Cap); |
| return static_cast<SkPaint::Cap>(i); |
| } |
| |
| static SkPaint::Join make_paint_join() { |
| uint8_t i; |
| fuzz->nextRange(&i, 0, (uint8_t)SkPaint::kDefault_Join); |
| return static_cast<SkPaint::Join>(i); |
| } |
| |
| static SkPaint::TextEncoding make_paint_text_encoding() { |
| uint8_t i; |
| fuzz->nextRange(&i, 0, (uint8_t)SkPaint::kGlyphID_TextEncoding); |
| return static_cast<SkPaint::TextEncoding>(i); |
| } |
| |
| static SkBlurStyle make_blur_style() { |
| uint8_t i; |
| fuzz->nextRange(&i, 0, (uint8_t)kLastEnum_SkBlurStyle); |
| return static_cast<SkBlurStyle>(i); |
| } |
| |
| static SkBlurMaskFilter::BlurFlags make_blur_mask_filter_flag() { |
| uint8_t i; |
| fuzz->nextRange(&i, 0, (uint8_t)SkBlurMaskFilter::kAll_BlurFlag); |
| return static_cast<SkBlurMaskFilter::BlurFlags>(i); |
| } |
| |
| static SkFilterQuality make_filter_quality() { |
| uint8_t i; |
| fuzz->nextRange(&i, 0, (uint8_t)kHigh_SkFilterQuality); |
| return static_cast<SkFilterQuality>(i); |
| } |
| |
| static SkFontStyle make_typeface_style() { |
| uint8_t i; |
| fuzz->nextRange(&i, 0, (uint8_t)SkTypeface::kBoldItalic); |
| return SkFontStyle::FromOldStyle(i); |
| } |
| |
| static SkPath1DPathEffect::Style make_path_1d_path_effect_style() { |
| uint8_t i; |
| fuzz->nextRange(&i, 0, (uint8_t)SkPath1DPathEffect::kLastEnum_Style); |
| return static_cast<SkPath1DPathEffect::Style>(i); |
| } |
| |
| static SkColor make_color() { |
| return make_bool() ? 0xFFC0F0A0 : 0xFF000090; |
| } |
| |
| static SkDropShadowImageFilter::ShadowMode make_shadow_mode() { |
| return make_bool() ? SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode : |
| SkDropShadowImageFilter::kDrawShadowOnly_ShadowMode; |
| } |
| |
| static SkPoint3 make_point() { |
| SkScalar a, b, c; |
| fuzz->next(&a, &b, &c); |
| c = std::abs(c); |
| return SkPoint3::Make(a, b, c); |
| } |
| |
| static SkDisplacementMapEffect::ChannelSelectorType make_channel_selector_type() { |
| uint8_t i; |
| fuzz->nextRange(&i, 1, (uint8_t)SkDisplacementMapEffect::kA_ChannelSelectorType); |
| return static_cast<SkDisplacementMapEffect::ChannelSelectorType>(i); |
| } |
| |
| static SkColorType rand_colortype() { |
| uint8_t i; |
| fuzz->nextRange(&i, 0, kLastEnum_SkColorType); |
| return (SkColorType) i; |
| } |
| |
| static void rand_bitmap_for_canvas(SkBitmap* bitmap) { |
| SkImageInfo info = SkImageInfo::Make(kBitmapSize, kBitmapSize, rand_colortype(), |
| kPremul_SkAlphaType); |
| if (!bitmap->tryAllocPixels(info)){ |
| SkDebugf("Bitmap not allocated\n"); |
| } |
| } |
| |
| static void make_g_bitmap(SkBitmap& bitmap) { |
| rand_bitmap_for_canvas(&bitmap); |
| |
| SkCanvas canvas(bitmap); |
| canvas.clear(0x00000000); |
| SkPaint paint; |
| paint.setAntiAlias(true); |
| paint.setColor(0xFF884422); |
| paint.setTextSize(SkIntToScalar(kBitmapSize/2)); |
| const char* str = "g"; |
| canvas.drawText(str, strlen(str), SkIntToScalar(kBitmapSize/8), |
| SkIntToScalar(kBitmapSize/4), paint); |
| } |
| |
| static void make_checkerboard_bitmap(SkBitmap& bitmap) { |
| rand_bitmap_for_canvas(&bitmap); |
| |
| SkCanvas canvas(bitmap); |
| canvas.clear(0x00000000); |
| SkPaint darkPaint; |
| darkPaint.setColor(0xFF804020); |
| SkPaint lightPaint; |
| lightPaint.setColor(0xFF244484); |
| const int i = kBitmapSize / 8; |
| const SkScalar f = SkIntToScalar(i); |
| for (int y = 0; y < kBitmapSize; y += i) { |
| for (int x = 0; x < kBitmapSize; x += i) { |
| canvas.save(); |
| canvas.translate(SkIntToScalar(x), SkIntToScalar(y)); |
| canvas.drawRect(SkRect::MakeXYWH(0, 0, f, f), darkPaint); |
| canvas.drawRect(SkRect::MakeXYWH(f, 0, f, f), lightPaint); |
| canvas.drawRect(SkRect::MakeXYWH(0, f, f, f), lightPaint); |
| canvas.drawRect(SkRect::MakeXYWH(f, f, f, f), darkPaint); |
| canvas.restore(); |
| } |
| } |
| } |
| |
| static const SkBitmap& make_bitmap() { |
| static SkBitmap bitmap[2]; |
| static bool initialized = false; |
| if (!initialized) { |
| make_g_bitmap(bitmap[0]); |
| make_checkerboard_bitmap(bitmap[1]); |
| initialized = true; |
| } |
| uint8_t i; |
| fuzz->nextRange(&i, 0, 1); |
| return bitmap[i]; |
| } |
| |
| static sk_sp<SkData> make_3Dlut(int* cubeDimension, bool invR, bool invG, bool invB) { |
| uint8_t shift; |
| fuzz->nextRange(&shift, 0, 4); |
| int size = 4 << shift; |
| auto data = SkData::MakeUninitialized(sizeof(SkColor) * size * size * size); |
| SkColor* pixels = (SkColor*)(data->writable_data()); |
| SkAutoTMalloc<uint8_t> lutMemory(size); |
| SkAutoTMalloc<uint8_t> invLutMemory(size); |
| uint8_t* lut = lutMemory.get(); |
| uint8_t* invLut = invLutMemory.get(); |
| const int maxIndex = size - 1; |
| for (int i = 0; i < size; i++) { |
| lut[i] = (i * 255) / maxIndex; |
| invLut[i] = ((maxIndex - i) * 255) / maxIndex; |
| } |
| for (int r = 0; r < size; ++r) { |
| for (int g = 0; g < size; ++g) { |
| for (int b = 0; b < size; ++b) { |
| pixels[(size * ((size * b) + g)) + r] = SkColorSetARGB(0xFF, |
| invR ? invLut[r] : lut[r], |
| invG ? invLut[g] : lut[g], |
| invB ? invLut[b] : lut[b]); |
| } |
| } |
| } |
| if (cubeDimension) { |
| *cubeDimension = size; |
| } |
| return data; |
| } |
| |
| static void drawSomething(SkCanvas* canvas) { |
| SkPaint paint; |
| |
| canvas->save(); |
| canvas->scale(0.5f, 0.5f); |
| canvas->drawBitmap(make_bitmap(), 0, 0, nullptr); |
| canvas->restore(); |
| |
| paint.setAntiAlias(true); |
| |
| paint.setColor(SK_ColorRED); |
| canvas->drawCircle(SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/3), paint); |
| paint.setColor(SK_ColorBLACK); |
| paint.setTextSize(SkIntToScalar(kBitmapSize/3)); |
| canvas->drawText("Picture", 7, SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/4), paint); |
| } |
| |
| static sk_sp<SkColorFilter> make_color_filter() { |
| uint8_t s; |
| fuzz->nextRange(&s, 0, 5); |
| switch (s) { |
| case 0: { |
| SkScalar array[20]; |
| fuzz->nextN(array, 20); |
| return SkColorFilter::MakeMatrixFilterRowMajor255(array); |
| } |
| case 1: |
| return SkLumaColorFilter::Make(); |
| case 2: { |
| uint8_t tableA[256]; |
| uint8_t tableR[256]; |
| uint8_t tableG[256]; |
| uint8_t tableB[256]; |
| fuzz->nextN(tableA, 256); |
| fuzz->nextN(tableR, 256); |
| fuzz->nextN(tableG, 256); |
| fuzz->nextN(tableB, 256); |
| return SkTableColorFilter::MakeARGB(tableA, tableR, tableG, tableB); |
| } |
| case 3: { |
| SkColor c = make_color(); |
| SkBlendMode mode = make_blendmode(); |
| return SkColorFilter::MakeModeFilter(c, mode); |
| } |
| case 4: { |
| SkColor a = make_color(); |
| SkColor b = make_color(); |
| return SkColorMatrixFilter::MakeLightingFilter(a, b); |
| } |
| case 5: |
| default: |
| break; |
| } |
| return nullptr; |
| } |
| |
| static SkPath make_path() { |
| SkPath path; |
| uint8_t numOps; |
| fuzz->nextRange(&numOps, 0, 30); |
| for (uint8_t i = 0; i < numOps; ++i) { |
| uint8_t op; |
| fuzz->nextRange(&op, 0, 5); |
| SkScalar a, b, c, d, e, f; |
| switch (op) { |
| 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: |
| default: |
| fuzz->next(&a, &b, &c, &d, &e); |
| path.arcTo(a, b, c, d, e); |
| break; |
| } |
| } |
| path.close(); |
| return path; |
| } |
| |
| static sk_sp<SkPathEffect> make_path_effect(bool canBeNull = true) { |
| sk_sp<SkPathEffect> pathEffect; |
| uint8_t s; |
| fuzz->nextRange(&s, 0, 2); |
| if (canBeNull && s == 0) { return pathEffect; } |
| |
| fuzz->nextRange(&s, 0, 8); |
| |
| switch (s) { |
| case 0: { |
| SkScalar a = make_number(true); |
| pathEffect = SkArcToPathEffect::Make(a); |
| break; |
| } |
| case 1: { |
| sk_sp<SkPathEffect> a = make_path_effect(false); |
| sk_sp<SkPathEffect> b = make_path_effect(false); |
| pathEffect = SkComposePathEffect::Make(a, b); |
| break; |
| } |
| case 2: { |
| SkScalar a = make_number(false); |
| pathEffect = SkCornerPathEffect::Make(a); |
| break; |
| } |
| case 3: { |
| uint8_t count; |
| fuzz->nextRange(&count, 0, 9); |
| SkScalar intervals[10]; |
| fuzz->nextN(intervals, 10); |
| SkScalar a = make_number(false); |
| pathEffect = SkDashPathEffect::Make(intervals, count, a); |
| break; |
| } |
| case 4: { |
| SkScalar a, b; |
| fuzz->next(&a, &b); |
| pathEffect = SkDiscretePathEffect::Make(a, b); |
| break; |
| } |
| case 5: { |
| SkPath path = make_path(); |
| SkScalar a, b; |
| fuzz->next(&a, &b); |
| SkPath1DPathEffect::Style style = make_path_1d_path_effect_style(); |
| pathEffect = SkPath1DPathEffect::Make(path, a, b, style); |
| break; |
| } |
| case 6: { |
| SkScalar a = make_number(false); |
| SkMatrix m; |
| init_matrix(&m); |
| pathEffect = SkLine2DPathEffect::Make(a, m); |
| break; |
| } |
| case 7: { |
| SkPath path = make_path(); |
| SkMatrix m; |
| init_matrix(&m); |
| pathEffect = SkPath2DPathEffect::Make(m, path); |
| break; |
| } |
| case 8: |
| default: { |
| sk_sp<SkPathEffect> a = make_path_effect(false); |
| sk_sp<SkPathEffect> b = make_path_effect(false); |
| pathEffect = SkSumPathEffect::Make(a, b); |
| break; |
| } |
| } |
| return pathEffect; |
| } |
| |
| static sk_sp<SkMaskFilter> make_mask_filter() { |
| sk_sp<SkMaskFilter> maskFilter; |
| uint8_t s; |
| fuzz->nextRange(&s, 0, 2); |
| switch (s) { |
| case 0: { |
| SkBlurStyle blur = make_blur_style(); |
| SkScalar a = make_number(false); |
| SkBlurMaskFilter::BlurFlags flags = make_blur_mask_filter_flag(); |
| maskFilter = SkBlurMaskFilter::Make(blur, a, flags); |
| break; |
| } |
| case 1: { |
| SkScalar a = make_number(false); |
| SkEmbossMaskFilter::Light light; |
| fuzz->nextN(light.fDirection, 3); |
| fuzz->nextRange(&light.fPad, 0, 65535); |
| fuzz->nextRange(&light.fAmbient, 0, 255); |
| fuzz->nextRange(&light.fSpecular, 0, 255); |
| maskFilter = SkEmbossMaskFilter::Make(a, light); |
| break; |
| } |
| case 2: |
| default: |
| break; |
| } |
| return maskFilter; |
| } |
| |
| static sk_sp<SkImageFilter> make_image_filter(bool canBeNull = true); |
| |
| static SkPaint make_paint() { |
| SkPaint paint; |
| if (fuzz->exhausted()) { |
| return 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.setUnderlineText(make_bool()); |
| paint.setStrikeThruText(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_number(false)); |
| paint.setStrokeMiter(make_number(false)); |
| paint.setStrokeCap(make_paint_cap()); |
| paint.setStrokeJoin(make_paint_join()); |
| paint.setColorFilter(make_color_filter()); |
| paint.setBlendMode(make_blendmode()); |
| 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())); |
| } |
| |
| SkLayerRasterizer::Builder rasterizerBuilder; |
| SkPaint paintForRasterizer; |
| if (make_bool()) { |
| paintForRasterizer = make_paint(); |
| } |
| rasterizerBuilder.addLayer(paintForRasterizer); |
| paint.setRasterizer(rasterizerBuilder.detach()); |
| paint.setImageFilter(make_image_filter()); |
| bool a, b, c; |
| fuzz->next(&a, &b, &c); |
| sk_sp<SkData> data(make_3Dlut(nullptr, a, b, c)); |
| paint.setTextAlign(make_paint_align()); |
| SkScalar d, e, f; |
| fuzz->next(&d, &e, &f); |
| paint.setTextSize(d); |
| paint.setTextScaleX(e); |
| paint.setTextSkewX(f); |
| paint.setTextEncoding(make_paint_text_encoding()); |
| return paint; |
| } |
| |
| static sk_sp<SkImageFilter> make_image_filter(bool canBeNull) { |
| sk_sp<SkImageFilter> filter; |
| |
| // Add a 1 in 3 chance to get a nullptr input |
| uint8_t i; |
| fuzz->nextRange(&i, 0, 2); |
| if (fuzz->exhausted() || (canBeNull && i == 1)) { |
| return filter; |
| } |
| |
| enum { ALPHA_THRESHOLD, MERGE, COLOR, LUT3D, BLUR, MAGNIFIER, |
| BLENDMODE, OFFSET, MATRIX, MATRIX_CONVOLUTION, COMPOSE, |
| DISTANT_LIGHT, POINT_LIGHT, SPOT_LIGHT, NOISE, DROP_SHADOW, |
| MORPHOLOGY, BITMAP, DISPLACE, TILE, PICTURE, PAINT, NUM_FILTERS }; |
| |
| uint8_t s; |
| fuzz->nextRange(&s, 0, NUM_FILTERS - 1); |
| switch (s) { |
| case ALPHA_THRESHOLD: { |
| SkRegion reg = make_region(); |
| SkScalar innerMin, outerMax; |
| fuzz->next(&innerMin, &outerMax); |
| sk_sp<SkImageFilter> fil = make_image_filter(); |
| filter = SkAlphaThresholdFilter::Make(reg, innerMin, outerMax, fil); |
| break; |
| } |
| case MERGE: { |
| sk_sp<SkImageFilter> filA = make_image_filter(); |
| sk_sp<SkImageFilter> filB = make_image_filter(); |
| SkBlendMode blend = make_blendmode(); |
| filter = SkMergeImageFilter::Make(filA, filB, blend); |
| break; |
| } |
| case COLOR: { |
| sk_sp<SkColorFilter> cf(make_color_filter()); |
| filter = cf ? SkColorFilterImageFilter::Make(std::move(cf), make_image_filter()) |
| : nullptr; |
| break; |
| } |
| case LUT3D: { |
| int cubeDimension; |
| bool a, b, c; |
| fuzz->next(&a, &b, &c); |
| sk_sp<SkData> lut3D(make_3Dlut(&cubeDimension, a, b, c)); |
| sk_sp<SkColorFilter> cf(SkColorCubeFilter::Make(std::move(lut3D), cubeDimension)); |
| filter = cf ? SkColorFilterImageFilter::Make(std::move(cf), make_image_filter()) |
| : nullptr; |
| break; |
| } |
| case BLUR: { |
| SkScalar sX = make_number(true); |
| SkScalar sY = make_number(true); |
| sk_sp<SkImageFilter> fil = make_image_filter(); |
| |
| filter = SkBlurImageFilter::Make(sX, sY, fil); |
| break; |
| } |
| case MAGNIFIER: { |
| SkRect rect = make_rect(); |
| SkScalar inset = make_number(true); |
| sk_sp<SkImageFilter> fil = make_image_filter(); |
| filter = SkMagnifierImageFilter::Make(rect, inset, fil); |
| break; |
| } |
| case BLENDMODE: { |
| SkBlendMode mode = make_blendmode(); |
| sk_sp<SkImageFilter> filA = make_image_filter(); |
| sk_sp<SkImageFilter> filB = make_image_filter(); |
| filter = SkXfermodeImageFilter::Make(mode, filA, filB, nullptr); |
| break; |
| } |
| case OFFSET: { |
| SkScalar dx, dy; |
| fuzz->next(&dx, &dy); |
| sk_sp<SkImageFilter> fil = make_image_filter(); |
| filter = SkOffsetImageFilter::Make(dx, dy, fil); |
| break; |
| } |
| case MATRIX: { |
| SkMatrix m; |
| init_matrix(&m); |
| int qual; |
| fuzz->nextRange(&qual, 0, SkFilterQuality::kLast_SkFilterQuality - 1); |
| sk_sp<SkImageFilter> fil = make_image_filter(); |
| filter = SkImageFilter::MakeMatrixFilter(m, (SkFilterQuality)qual, fil); |
| break; |
| } |
| case MATRIX_CONVOLUTION: { |
| SkImageFilter::CropRect cropR(SkRect::MakeWH(SkIntToScalar(kBitmapSize), |
| SkIntToScalar(kBitmapSize))); |
| int w, h; |
| fuzz->nextRange(&w, 1, 10); |
| fuzz->nextRange(&h, 1, 10); |
| SkISize size = SkISize::Make(w, h); |
| int arraySize = size.width() * size.height(); |
| SkTArray<SkScalar> kernel(arraySize); |
| for (int i = 0; i < arraySize; ++i) { |
| kernel.push_back() = make_number(false); |
| } |
| fuzz->nextRange(&w, 0, size.width() - 1); |
| fuzz->nextRange(&h, 0, size.height() - 1); |
| SkIPoint kernelOffset = SkIPoint::Make(w, h); |
| int mode; |
| fuzz->nextRange(&mode, 0, SkMatrixConvolutionImageFilter::kMax_TileMode - 1); |
| bool convolveAlpha = make_bool(); |
| SkScalar gain, bias; |
| fuzz->next(&gain, &bias); |
| sk_sp<SkImageFilter> fil = make_image_filter(); |
| filter = SkMatrixConvolutionImageFilter::Make(size, |
| kernel.begin(), |
| gain, |
| bias, |
| kernelOffset, |
| (SkMatrixConvolutionImageFilter::TileMode)mode, |
| convolveAlpha, |
| fil, |
| &cropR); |
| break; |
| } |
| case COMPOSE: { |
| sk_sp<SkImageFilter> filA = make_image_filter(); |
| sk_sp<SkImageFilter> filB = make_image_filter(); |
| filter = SkComposeImageFilter::Make(filA, filB); |
| break; |
| } |
| case DISTANT_LIGHT: { |
| SkPoint3 p = make_point(); |
| SkColor c = make_color(); |
| SkScalar ss, kd; |
| fuzz->next(&ss, &kd); |
| int shininess; |
| fuzz->nextRange(&shininess, 0, 9); |
| sk_sp<SkImageFilter> fil = make_image_filter(); |
| filter = make_bool() |
| ? SkLightingImageFilter::MakeDistantLitDiffuse(p, c, ss, kd, fil) |
| : SkLightingImageFilter::MakeDistantLitSpecular(p, c, ss, kd, shininess, fil); |
| break; |
| } |
| case POINT_LIGHT: { |
| SkPoint3 p = make_point(); |
| SkColor c = make_color(); |
| SkScalar ss, kd; |
| fuzz->next(&ss, &kd); |
| int shininess; |
| fuzz->nextRange(&shininess, 0, 9); |
| sk_sp<SkImageFilter> fil = make_image_filter(); |
| filter = make_bool() |
| ? SkLightingImageFilter::MakePointLitDiffuse(p, c, ss, kd, fil) |
| : SkLightingImageFilter::MakePointLitSpecular(p, c, ss, kd, shininess, fil); |
| break; |
| } |
| case SPOT_LIGHT: { |
| SkPoint3 p = make_point(); |
| SkColor c = make_color(); |
| SkScalar se, ca, ss, kd; |
| fuzz->next(&se, &ca, &ss, &kd); |
| int shininess; |
| fuzz->nextRange(&shininess, 0, 9); |
| sk_sp<SkImageFilter> fil = make_image_filter(); |
| filter = make_bool() |
| ? SkLightingImageFilter::MakeSpotLitDiffuse(SkPoint3::Make(0, 0, 0), |
| p, se, ca, c, ss, kd, fil) |
| : SkLightingImageFilter::MakeSpotLitSpecular(SkPoint3::Make(0, 0, 0), |
| p, se, ca, c, ss, kd, |
| shininess, fil); |
| break; |
| } |
| case NOISE: { |
| SkScalar bfx = make_number(true); |
| SkScalar bfy = make_number(true); |
| SkScalar seed = make_number(false); |
| int octaves; |
| fuzz->nextRange(&octaves, 0, 9); |
| sk_sp<SkShader> shader(make_bool() |
| ? SkPerlinNoiseShader::MakeFractalNoise(bfx, bfy, octaves, seed) |
| : SkPerlinNoiseShader::MakeTurbulence(bfx, bfy, octaves, seed)); |
| SkPaint paint; |
| paint.setShader(shader); |
| SkImageFilter::CropRect cropR(SkRect::MakeWH(SkIntToScalar(kBitmapSize), |
| SkIntToScalar(kBitmapSize))); |
| filter = SkPaintImageFilter::Make(paint, &cropR); |
| break; |
| } |
| case DROP_SHADOW: { |
| SkScalar dx, dy, sx, sy; |
| fuzz->next(&dx, &dy); |
| sx = make_number(true); |
| sy = make_number(true); |
| SkColor c = make_color(); |
| SkDropShadowImageFilter::ShadowMode mode = make_shadow_mode(); |
| sk_sp<SkImageFilter> fil = make_image_filter(); |
| filter = SkDropShadowImageFilter::Make(dx, dy, sx, sy, c, mode, fil, nullptr); |
| break; |
| } |
| case MORPHOLOGY: { |
| int rx, ry; |
| fuzz->nextRange(&rx, 0, kBitmapSize); |
| fuzz->nextRange(&ry, 0, kBitmapSize); |
| sk_sp<SkImageFilter> fil = make_image_filter(); |
| if (make_bool()) { |
| filter = SkDilateImageFilter::Make(rx, ry, fil); |
| } else { |
| filter = SkErodeImageFilter::Make(rx, ry, fil); |
| } |
| break; |
| } |
| case BITMAP: { |
| sk_sp<SkImage> image(SkImage::MakeFromBitmap(make_bitmap())); |
| if (make_bool()) { |
| filter = SkImageSource::Make(std::move(image), |
| make_rect(), |
| make_rect(), |
| kHigh_SkFilterQuality); |
| } else { |
| filter = SkImageSource::Make(std::move(image)); |
| } |
| break; |
| } |
| case DISPLACE: { |
| SkDisplacementMapEffect::ChannelSelectorType x = make_channel_selector_type(); |
| SkDisplacementMapEffect::ChannelSelectorType y = make_channel_selector_type(); |
| SkScalar scale = make_number(false); |
| sk_sp<SkImageFilter> filA = make_image_filter(false); |
| sk_sp<SkImageFilter> filB = make_image_filter(); |
| |
| filter = SkDisplacementMapEffect::Make(x, y, scale, filA, filB); |
| break; |
| } |
| case TILE: { |
| SkRect src = make_rect(); |
| SkRect dest = make_rect(); |
| sk_sp<SkImageFilter> fil = make_image_filter(false); |
| filter = SkTileImageFilter::Make(src, dest, fil); |
| break; |
| } |
| case PICTURE: { |
| SkRTreeFactory factory; |
| SkPictureRecorder recorder; |
| SkCanvas* recordingCanvas = recorder.beginRecording(SkIntToScalar(kBitmapSize), |
| SkIntToScalar(kBitmapSize), |
| &factory, 0); |
| drawSomething(recordingCanvas); |
| sk_sp<SkPicture> pict(recorder.finishRecordingAsPicture()); |
| filter = SkPictureImageFilter::Make(pict, make_rect()); |
| break; |
| } |
| case PAINT: { |
| SkImageFilter::CropRect cropR(make_rect()); |
| filter = SkPaintImageFilter::Make(make_paint(), &cropR); |
| break; |
| } |
| default: |
| break; |
| } |
| return filter; |
| } |
| |
| static sk_sp<SkImageFilter> make_serialized_image_filter() { |
| sk_sp<SkImageFilter> filter(make_image_filter(false)); |
| sk_sp<SkData> data(SkValidatingSerializeFlattenable(filter.get())); |
| const unsigned char* ptr = static_cast<const unsigned char*>(data->data()); |
| size_t len = data->size(); |
| #ifdef SK_ADD_RANDOM_BIT_FLIPS |
| unsigned char* p = const_cast<unsigned char*>(ptr); |
| for (size_t i = 0; i < len; ++i, ++p) { |
| uint8_t j; |
| fuzz->nextRange(&j, 1, 250); |
| if (j == 1) { // 0.4% of the time, flip a bit or byte |
| uint8_t k; |
| fuzz->nextRange(&k, 1, 10); |
| if (k == 1) { // Then 10% of the time, change a whole byte |
| uint8_t s; |
| fuzz->nextRange(&s, 0, 2); |
| switch(s) { |
| case 0: |
| *p ^= 0xFF; // Flip entire byte |
| break; |
| case 1: |
| *p = 0xFF; // Set all bits to 1 |
| break; |
| case 2: |
| *p = 0x00; // Set all bits to 0 |
| break; |
| } |
| } else { |
| uint8_t s; |
| fuzz->nextRange(&s, 0, 7); |
| *p ^= (1 << 7); |
| } |
| } |
| } |
| #endif // SK_ADD_RANDOM_BIT_FLIPS |
| return SkValidatingDeserializeImageFilter(ptr, len); |
| } |
| |
| static void drawClippedBitmap(SkCanvas* canvas, int x, int y, const SkPaint& paint) { |
| canvas->save(); |
| canvas->clipRect(SkRect::MakeXYWH(SkIntToScalar(x), SkIntToScalar(y), |
| SkIntToScalar(kBitmapSize), SkIntToScalar(kBitmapSize))); |
| canvas->drawBitmap(make_bitmap(), SkIntToScalar(x), SkIntToScalar(y), &paint); |
| canvas->restore(); |
| } |
| |
| DEF_FUZZ(SerializedImageFilter, f) { |
| fuzz = f; |
| |
| SkPaint paint; |
| paint.setImageFilter(make_serialized_image_filter()); |
| SkBitmap bitmap; |
| SkCanvas canvas(bitmap); |
| drawClippedBitmap(&canvas, 0, 0, paint); |
| } |
