789 lines
28 KiB
C++
789 lines
28 KiB
C++
/*
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* Copyright 2013 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "Fuzz.h"
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#include "Sk1DPathEffect.h"
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#include "Sk2DPathEffect.h"
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#include "SkAlphaThresholdFilter.h"
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#include "SkArcToPathEffect.h"
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#include "SkBlurImageFilter.h"
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#include "SkBlurMaskFilter.h"
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#include "SkCanvas.h"
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#include "SkColorCubeFilter.h"
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#include "SkColorFilter.h"
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#include "SkColorFilterImageFilter.h"
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#include "SkColorMatrixFilter.h"
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#include "SkComposeImageFilter.h"
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#include "SkCornerPathEffect.h"
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#include "SkDashPathEffect.h"
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#include "SkData.h"
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#include "SkDiscretePathEffect.h"
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#include "SkDisplacementMapEffect.h"
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#include "SkDropShadowImageFilter.h"
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#include "SkEmbossMaskFilter.h"
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#include "SkFlattenableSerialization.h"
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#include "SkImageSource.h"
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#include "SkLayerRasterizer.h"
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#include "SkLightingImageFilter.h"
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#include "SkLumaColorFilter.h"
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#include "SkMagnifierImageFilter.h"
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#include "SkMatrixConvolutionImageFilter.h"
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#include "SkMergeImageFilter.h"
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#include "SkMorphologyImageFilter.h"
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#include "SkOffsetImageFilter.h"
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#include "SkPaintImageFilter.h"
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#include "SkPerlinNoiseShader.h"
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#include "SkPictureImageFilter.h"
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#include "SkPictureRecorder.h"
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#include "SkPoint3.h"
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#include "SkRandom.h"
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#include "SkTableColorFilter.h"
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#include "SkTestImageFilters.h"
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#include "SkTileImageFilter.h"
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#include "SkTypeface.h"
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#include "SkXfermodeImageFilter.h"
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#include <stdio.h>
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#include <time.h>
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#define SK_ADD_RANDOM_BIT_FLIPS
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static Fuzz* fuzz;
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static const int kBitmapSize = 24;
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static bool return_large = false;
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static bool return_undef = false;
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static int R(float x) {
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return (int)floor(SkScalarToFloat(fuzz->nextF1()) * x);
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}
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#if defined _WIN32
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#pragma warning ( push )
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// we are intentionally causing an overflow here
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// (warning C4756: overflow in constant arithmetic)
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#pragma warning ( disable : 4756 )
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#endif
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static float huge() {
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double d = 1e100;
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float f = (float)d;
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return f;
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}
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#if defined _WIN32
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#pragma warning ( pop )
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#endif
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static float make_number(bool positiveOnly) {
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float f = positiveOnly ? 1.0f : 0.0f;
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float v = f;
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int sel;
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if (return_large) sel = R(6); else sel = R(4);
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if (!return_undef && sel == 0) sel = 1;
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if (R(2) == 1) v = (float)(R(100)+f); else
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switch (sel) {
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case 0: break;
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case 1: v = f; break;
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case 2: v = 0.000001f; break;
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case 3: v = 10000.0f; break;
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case 4: v = 2000000000.0f; break;
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case 5: v = huge(); break;
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}
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if (!positiveOnly && (R(4) == 1)) v = -v;
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return v;
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}
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static SkScalar make_scalar(bool positiveOnly = false) {
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return make_number(positiveOnly);
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}
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static SkString make_string() {
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int length = R(1000);
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SkString str(length);
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for (int i = 0; i < length; ++i) {
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str[i] = static_cast<char>(R(256));
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}
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return str;
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}
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static SkString make_font_name() {
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int sel = R(8);
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switch(sel) {
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case 0: return SkString("Courier New");
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case 1: return SkString("Helvetica");
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case 2: return SkString("monospace");
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case 3: return SkString("sans-serif");
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case 4: return SkString("serif");
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case 5: return SkString("Times");
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case 6: return SkString("Times New Roman");
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case 7:
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default:
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return make_string();
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}
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}
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static bool make_bool() {
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return R(2) == 1;
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}
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static SkRect make_rect() {
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return SkRect::MakeWH(SkIntToScalar(R(static_cast<float>(kBitmapSize))),
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SkIntToScalar(R(static_cast<float>(kBitmapSize))));
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}
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static SkRegion make_region() {
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SkIRect iRegion = SkIRect::MakeXYWH(R(static_cast<float>(kBitmapSize)),
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R(static_cast<float>(kBitmapSize)),
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R(static_cast<float>(kBitmapSize)),
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R(static_cast<float>(kBitmapSize)));
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return SkRegion(iRegion);
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}
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static SkMatrix make_matrix() {
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SkMatrix m;
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for (int i = 0; i < 9; ++i) {
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m[i] = make_scalar();
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}
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return m;
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}
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static SkXfermode::Mode make_xfermode() {
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return static_cast<SkXfermode::Mode>(R(SkXfermode::kLastMode+1));
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}
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static SkPaint::Align make_paint_align() {
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return static_cast<SkPaint::Align>(R(SkPaint::kRight_Align+1));
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}
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static SkPaint::Hinting make_paint_hinting() {
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return static_cast<SkPaint::Hinting>(R(SkPaint::kFull_Hinting+1));
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}
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static SkPaint::Style make_paint_style() {
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return static_cast<SkPaint::Style>(R(SkPaint::kStrokeAndFill_Style+1));
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}
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static SkPaint::Cap make_paint_cap() {
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return static_cast<SkPaint::Cap>(R(SkPaint::kDefault_Cap+1));
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}
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static SkPaint::Join make_paint_join() {
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return static_cast<SkPaint::Join>(R(SkPaint::kDefault_Join+1));
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}
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static SkPaint::TextEncoding make_paint_text_encoding() {
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return static_cast<SkPaint::TextEncoding>(R(SkPaint::kGlyphID_TextEncoding+1));
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}
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static SkBlurStyle make_blur_style() {
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return static_cast<SkBlurStyle>(R(kLastEnum_SkBlurStyle+1));
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}
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static SkBlurMaskFilter::BlurFlags make_blur_mask_filter_flag() {
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return static_cast<SkBlurMaskFilter::BlurFlags>(R(SkBlurMaskFilter::kAll_BlurFlag+1));
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}
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static SkFilterQuality make_filter_quality() {
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return static_cast<SkFilterQuality>(R(kHigh_SkFilterQuality+1));
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}
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static SkTypeface::Style make_typeface_style() {
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return static_cast<SkTypeface::Style>(R(SkTypeface::kBoldItalic+1));
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}
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static SkPath1DPathEffect::Style make_path_1d_path_effect_style() {
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return static_cast<SkPath1DPathEffect::Style>(R((int)SkPath1DPathEffect::kLastEnum_Style + 1));
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}
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static SkColor make_color() {
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return (R(2) == 1) ? 0xFFC0F0A0 : 0xFF000090;
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}
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static SkDropShadowImageFilter::ShadowMode make_shadow_mode() {
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return (R(2) == 1) ? SkDropShadowImageFilter::kDrawShadowAndForeground_ShadowMode :
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SkDropShadowImageFilter::kDrawShadowOnly_ShadowMode;
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}
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static SkPoint3 make_point() {
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return SkPoint3::Make(make_scalar(), make_scalar(), make_scalar(true));
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}
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static SkDisplacementMapEffect::ChannelSelectorType make_channel_selector_type() {
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return static_cast<SkDisplacementMapEffect::ChannelSelectorType>(R(4)+1);
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}
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static bool valid_for_raster_canvas(const SkImageInfo& info) {
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switch (info.colorType()) {
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case kAlpha_8_SkColorType:
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case kRGB_565_SkColorType:
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return true;
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case kN32_SkColorType:
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return kPremul_SkAlphaType == info.alphaType() ||
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kOpaque_SkAlphaType == info.alphaType();
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default:
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break;
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}
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return false;
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}
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static SkColorType rand_colortype() {
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return (SkColorType)R(kLastEnum_SkColorType + 1);
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}
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static void rand_bitmap_for_canvas(SkBitmap* bitmap) {
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SkImageInfo info;
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do {
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info = SkImageInfo::Make(kBitmapSize, kBitmapSize, rand_colortype(),
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kPremul_SkAlphaType);
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} while (!valid_for_raster_canvas(info) || !bitmap->tryAllocPixels(info));
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}
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static void make_g_bitmap(SkBitmap& bitmap) {
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rand_bitmap_for_canvas(&bitmap);
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SkCanvas canvas(bitmap);
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canvas.clear(0x00000000);
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SkPaint paint;
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paint.setAntiAlias(true);
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paint.setColor(0xFF884422);
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paint.setTextSize(SkIntToScalar(kBitmapSize/2));
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const char* str = "g";
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canvas.drawText(str, strlen(str), SkIntToScalar(kBitmapSize/8),
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SkIntToScalar(kBitmapSize/4), paint);
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}
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static void make_checkerboard_bitmap(SkBitmap& bitmap) {
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rand_bitmap_for_canvas(&bitmap);
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SkCanvas canvas(bitmap);
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canvas.clear(0x00000000);
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SkPaint darkPaint;
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darkPaint.setColor(0xFF804020);
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SkPaint lightPaint;
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lightPaint.setColor(0xFF244484);
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const int i = kBitmapSize / 8;
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const SkScalar f = SkIntToScalar(i);
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for (int y = 0; y < kBitmapSize; y += i) {
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for (int x = 0; x < kBitmapSize; x += i) {
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canvas.save();
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canvas.translate(SkIntToScalar(x), SkIntToScalar(y));
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canvas.drawRect(SkRect::MakeXYWH(0, 0, f, f), darkPaint);
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canvas.drawRect(SkRect::MakeXYWH(f, 0, f, f), lightPaint);
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canvas.drawRect(SkRect::MakeXYWH(0, f, f, f), lightPaint);
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canvas.drawRect(SkRect::MakeXYWH(f, f, f, f), darkPaint);
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canvas.restore();
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}
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}
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}
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static const SkBitmap& make_bitmap() {
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static SkBitmap bitmap[2];
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static bool initialized = false;
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if (!initialized) {
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make_g_bitmap(bitmap[0]);
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make_checkerboard_bitmap(bitmap[1]);
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initialized = true;
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}
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return bitmap[R(2)];
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}
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static sk_sp<SkData> make_3Dlut(int* cubeDimension, bool invR, bool invG, bool invB) {
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int size = 4 << R(5);
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auto data = SkData::MakeUninitialized(sizeof(SkColor) * size * size * size);
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SkColor* pixels = (SkColor*)(data->writable_data());
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SkAutoTMalloc<uint8_t> lutMemory(size);
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SkAutoTMalloc<uint8_t> invLutMemory(size);
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uint8_t* lut = lutMemory.get();
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uint8_t* invLut = invLutMemory.get();
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const int maxIndex = size - 1;
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for (int i = 0; i < size; i++) {
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lut[i] = (i * 255) / maxIndex;
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invLut[i] = ((maxIndex - i) * 255) / maxIndex;
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}
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for (int r = 0; r < size; ++r) {
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for (int g = 0; g < size; ++g) {
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for (int b = 0; b < size; ++b) {
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pixels[(size * ((size * b) + g)) + r] = SkColorSetARGB(0xFF,
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invR ? invLut[r] : lut[r],
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invG ? invLut[g] : lut[g],
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invB ? invLut[b] : lut[b]);
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}
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}
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}
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if (cubeDimension) {
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*cubeDimension = size;
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}
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return data;
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}
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static void drawSomething(SkCanvas* canvas) {
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SkPaint paint;
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canvas->save();
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canvas->scale(0.5f, 0.5f);
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canvas->drawBitmap(make_bitmap(), 0, 0, nullptr);
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canvas->restore();
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paint.setAntiAlias(true);
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paint.setColor(SK_ColorRED);
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canvas->drawCircle(SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/3), paint);
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paint.setColor(SK_ColorBLACK);
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paint.setTextSize(SkIntToScalar(kBitmapSize/3));
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canvas->drawText("Picture", 7, SkIntToScalar(kBitmapSize/2), SkIntToScalar(kBitmapSize/4), paint);
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}
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static void rand_color_table(uint8_t* table) {
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for (int i = 0; i < 256; ++i) {
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table[i] = R(256);
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}
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}
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static sk_sp<SkColorFilter> make_color_filter() {
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switch (R(6)) {
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case 0: {
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SkScalar array[20];
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for (int i = 0; i < 20; ++i) {
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array[i] = make_scalar();
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}
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return SkColorFilter::MakeMatrixFilterRowMajor255(array);
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}
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case 1:
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return SkLumaColorFilter::Make();
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case 2: {
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uint8_t tableA[256];
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uint8_t tableR[256];
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uint8_t tableG[256];
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uint8_t tableB[256];
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rand_color_table(tableA);
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rand_color_table(tableR);
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rand_color_table(tableG);
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rand_color_table(tableB);
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return SkTableColorFilter::MakeARGB(tableA, tableR, tableG, tableB);
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}
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case 3:
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return SkColorFilter::MakeModeFilter(make_color(), make_xfermode());
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case 4:
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return SkColorMatrixFilter::MakeLightingFilter(make_color(), make_color());
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case 5:
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default:
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break;
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}
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return nullptr;
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}
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static SkPath make_path() {
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SkPath path;
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int numOps = R(30);
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for (int i = 0; i < numOps; ++i) {
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switch (R(6)) {
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case 0:
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path.moveTo(make_scalar(), make_scalar());
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break;
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case 1:
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path.lineTo(make_scalar(), make_scalar());
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break;
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case 2:
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path.quadTo(make_scalar(), make_scalar(), make_scalar(), make_scalar());
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break;
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case 3:
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path.conicTo(make_scalar(), make_scalar(), make_scalar(), make_scalar(), make_scalar());
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break;
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case 4:
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path.cubicTo(make_scalar(), make_scalar(), make_scalar(),
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make_scalar(), make_scalar(), make_scalar());
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break;
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case 5:
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default:
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path.arcTo(make_scalar(), make_scalar(), make_scalar(), make_scalar(), make_scalar());
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break;
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}
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}
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path.close();
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return path;
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}
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static sk_sp<SkPathEffect> make_path_effect(bool canBeNull = true) {
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sk_sp<SkPathEffect> pathEffect;
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if (canBeNull && (R(3) == 1)) { return pathEffect; }
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switch (R(9)) {
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case 0:
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pathEffect = SkArcToPathEffect::Make(make_scalar(true));
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break;
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case 1:
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pathEffect = SkComposePathEffect::Make(make_path_effect(false),
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make_path_effect(false));
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break;
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case 2:
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pathEffect = SkCornerPathEffect::Make(make_scalar());
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break;
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case 3: {
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int count = R(10);
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SkScalar intervals[10];
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for (int i = 0; i < count; ++i) {
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intervals[i] = make_scalar();
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}
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pathEffect = SkDashPathEffect::Make(intervals, count, make_scalar());
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break;
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}
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case 4:
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pathEffect = SkDiscretePathEffect::Make(make_scalar(), make_scalar());
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break;
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case 5:
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pathEffect = SkPath1DPathEffect::Make(make_path(), make_scalar(), make_scalar(),
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make_path_1d_path_effect_style());
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break;
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case 6:
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pathEffect = SkLine2DPathEffect::Make(make_scalar(), make_matrix());
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break;
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case 7:
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pathEffect = SkPath2DPathEffect::Make(make_matrix(), make_path());
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break;
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case 8:
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default:
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pathEffect = SkSumPathEffect::Make(make_path_effect(false),
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make_path_effect(false));
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break;
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}
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return pathEffect;
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}
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static sk_sp<SkMaskFilter> make_mask_filter() {
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sk_sp<SkMaskFilter> maskFilter;
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switch (R(3)) {
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case 0:
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maskFilter = SkBlurMaskFilter::Make(make_blur_style(), make_scalar(),
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make_blur_mask_filter_flag());
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case 1: {
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SkEmbossMaskFilter::Light light;
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for (int i = 0; i < 3; ++i) {
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light.fDirection[i] = make_scalar();
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}
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light.fPad = R(65536);
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light.fAmbient = R(256);
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light.fSpecular = R(256);
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maskFilter = SkEmbossMaskFilter::Make(make_scalar(), light);
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}
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case 2:
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default:
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break;
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}
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return maskFilter;
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}
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static sk_sp<SkImageFilter> make_image_filter(bool canBeNull = true);
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static SkPaint make_paint() {
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SkPaint paint;
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paint.setHinting(make_paint_hinting());
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paint.setAntiAlias(make_bool());
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paint.setDither(make_bool());
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paint.setLinearText(make_bool());
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paint.setSubpixelText(make_bool());
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paint.setLCDRenderText(make_bool());
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paint.setEmbeddedBitmapText(make_bool());
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paint.setAutohinted(make_bool());
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paint.setVerticalText(make_bool());
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paint.setUnderlineText(make_bool());
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paint.setStrikeThruText(make_bool());
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paint.setFakeBoldText(make_bool());
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paint.setDevKernText(make_bool());
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paint.setFilterQuality(make_filter_quality());
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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.setXfermodeMode(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()));
|
|
}
|
|
|
|
SkLayerRasterizer::Builder rasterizerBuilder;
|
|
SkPaint paintForRasterizer;
|
|
if (R(2) == 1) {
|
|
paintForRasterizer = make_paint();
|
|
}
|
|
rasterizerBuilder.addLayer(paintForRasterizer);
|
|
paint.setRasterizer(rasterizerBuilder.detach());
|
|
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;
|
|
}
|
|
|
|
static sk_sp<SkImageFilter> make_image_filter(bool canBeNull) {
|
|
sk_sp<SkImageFilter> filter;
|
|
|
|
// Add a 1 in 3 chance to get a nullptr input
|
|
if (canBeNull && (R(3) == 1)) {
|
|
return filter;
|
|
}
|
|
|
|
enum { ALPHA_THRESHOLD, MERGE, COLOR, LUT3D, BLUR, MAGNIFIER,
|
|
DOWN_SAMPLE, XFERMODE, OFFSET, MATRIX, MATRIX_CONVOLUTION, COMPOSE,
|
|
DISTANT_LIGHT, POINT_LIGHT, SPOT_LIGHT, NOISE, DROP_SHADOW,
|
|
MORPHOLOGY, BITMAP, DISPLACE, TILE, PICTURE, PAINT, NUM_FILTERS };
|
|
|
|
switch (R(NUM_FILTERS)) {
|
|
case ALPHA_THRESHOLD:
|
|
filter = SkAlphaThresholdFilter::Make(make_region(),
|
|
make_scalar(),
|
|
make_scalar(),
|
|
make_image_filter());
|
|
break;
|
|
case MERGE:
|
|
filter = SkMergeImageFilter::Make(make_image_filter(),
|
|
make_image_filter(),
|
|
make_xfermode());
|
|
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;
|
|
sk_sp<SkData> lut3D(make_3Dlut(&cubeDimension, (R(2) == 1), (R(2) == 1), (R(2) == 1)));
|
|
sk_sp<SkColorFilter> cf(SkColorCubeFilter::Make(std::move(lut3D), cubeDimension));
|
|
filter = cf ? SkColorFilterImageFilter::Make(std::move(cf), make_image_filter())
|
|
: nullptr;
|
|
break;
|
|
}
|
|
case BLUR:
|
|
filter = SkBlurImageFilter::Make(make_scalar(true),
|
|
make_scalar(true),
|
|
make_image_filter());
|
|
break;
|
|
case MAGNIFIER:
|
|
filter = SkMagnifierImageFilter::Make(make_rect(),
|
|
make_scalar(true),
|
|
make_image_filter());
|
|
break;
|
|
case DOWN_SAMPLE:
|
|
filter = SkDownSampleImageFilter::Make(make_scalar(), make_image_filter());
|
|
break;
|
|
case XFERMODE:
|
|
filter = SkXfermodeImageFilter::Make(SkXfermode::Make(make_xfermode()),
|
|
make_image_filter(),
|
|
make_image_filter(),
|
|
nullptr);
|
|
break;
|
|
case OFFSET:
|
|
filter = SkOffsetImageFilter::Make(make_scalar(), make_scalar(), make_image_filter());
|
|
break;
|
|
case MATRIX:
|
|
filter = SkImageFilter::MakeMatrixFilter(make_matrix(),
|
|
(SkFilterQuality)R(4),
|
|
make_image_filter());
|
|
break;
|
|
case MATRIX_CONVOLUTION: {
|
|
SkImageFilter::CropRect cropR(SkRect::MakeWH(SkIntToScalar(kBitmapSize),
|
|
SkIntToScalar(kBitmapSize)));
|
|
SkISize size = SkISize::Make(R(10)+1, R(10)+1);
|
|
int arraySize = size.width() * size.height();
|
|
SkTArray<SkScalar> kernel(arraySize);
|
|
for (int i = 0; i < arraySize; ++i) {
|
|
kernel.push_back() = make_scalar();
|
|
}
|
|
SkIPoint kernelOffset = SkIPoint::Make(R(SkIntToScalar(size.width())),
|
|
R(SkIntToScalar(size.height())));
|
|
|
|
filter = SkMatrixConvolutionImageFilter::Make(size,
|
|
kernel.begin(),
|
|
make_scalar(),
|
|
make_scalar(),
|
|
kernelOffset,
|
|
(SkMatrixConvolutionImageFilter::TileMode)R(3),
|
|
R(2) == 1,
|
|
make_image_filter(),
|
|
&cropR);
|
|
break;
|
|
}
|
|
case COMPOSE:
|
|
filter = SkComposeImageFilter::Make(make_image_filter(), make_image_filter());
|
|
break;
|
|
case DISTANT_LIGHT:
|
|
filter = (R(2) == 1)
|
|
? SkLightingImageFilter::MakeDistantLitDiffuse(make_point(), make_color(),
|
|
make_scalar(), make_scalar(),
|
|
make_image_filter())
|
|
: SkLightingImageFilter::MakeDistantLitSpecular(make_point(), make_color(),
|
|
make_scalar(), make_scalar(),
|
|
SkIntToScalar(R(10)),
|
|
make_image_filter());
|
|
break;
|
|
case POINT_LIGHT:
|
|
filter = (R(2) == 1)
|
|
? SkLightingImageFilter::MakePointLitDiffuse(make_point(), make_color(),
|
|
make_scalar(), make_scalar(),
|
|
make_image_filter())
|
|
: SkLightingImageFilter::MakePointLitSpecular(make_point(), make_color(),
|
|
make_scalar(), make_scalar(),
|
|
SkIntToScalar(R(10)),
|
|
make_image_filter());
|
|
break;
|
|
case SPOT_LIGHT:
|
|
filter = (R(2) == 1)
|
|
? SkLightingImageFilter::MakeSpotLitDiffuse(SkPoint3::Make(0, 0, 0),
|
|
make_point(), make_scalar(),
|
|
make_scalar(), make_color(),
|
|
make_scalar(), make_scalar(),
|
|
make_image_filter())
|
|
: SkLightingImageFilter::MakeSpotLitSpecular(SkPoint3::Make(0, 0, 0),
|
|
make_point(), make_scalar(),
|
|
make_scalar(), make_color(),
|
|
make_scalar(), make_scalar(),
|
|
SkIntToScalar(R(10)),
|
|
make_image_filter());
|
|
break;
|
|
case NOISE: {
|
|
sk_sp<SkShader> shader((R(2) == 1)
|
|
? SkPerlinNoiseShader::MakeFractalNoise(make_scalar(true), make_scalar(true),
|
|
R(10.0f), make_scalar())
|
|
: SkPerlinNoiseShader::MakeTurbulence(make_scalar(true), make_scalar(true),
|
|
R(10.0f), make_scalar()));
|
|
SkPaint paint;
|
|
paint.setShader(shader);
|
|
SkImageFilter::CropRect cropR(SkRect::MakeWH(SkIntToScalar(kBitmapSize),
|
|
SkIntToScalar(kBitmapSize)));
|
|
filter = SkPaintImageFilter::Make(paint, &cropR);
|
|
break;
|
|
}
|
|
case DROP_SHADOW:
|
|
filter = SkDropShadowImageFilter::Make(make_scalar(),
|
|
make_scalar(),
|
|
make_scalar(true),
|
|
make_scalar(true),
|
|
make_color(),
|
|
make_shadow_mode(),
|
|
make_image_filter(),
|
|
nullptr);
|
|
break;
|
|
case MORPHOLOGY:
|
|
if (R(2) == 1) {
|
|
filter = SkDilateImageFilter::Make(R(static_cast<float>(kBitmapSize)),
|
|
R(static_cast<float>(kBitmapSize)),
|
|
make_image_filter());
|
|
} else {
|
|
filter = SkErodeImageFilter::Make(R(static_cast<float>(kBitmapSize)),
|
|
R(static_cast<float>(kBitmapSize)),
|
|
make_image_filter());
|
|
}
|
|
break;
|
|
case BITMAP: {
|
|
sk_sp<SkImage> image(SkImage::MakeFromBitmap(make_bitmap()));
|
|
if (R(2) == 1) {
|
|
filter = SkImageSource::Make(std::move(image),
|
|
make_rect(),
|
|
make_rect(),
|
|
kHigh_SkFilterQuality);
|
|
} else {
|
|
filter = SkImageSource::Make(std::move(image));
|
|
}
|
|
break;
|
|
}
|
|
case DISPLACE:
|
|
filter = SkDisplacementMapEffect::Make(make_channel_selector_type(),
|
|
make_channel_selector_type(),
|
|
make_scalar(),
|
|
make_image_filter(false),
|
|
make_image_filter());
|
|
break;
|
|
case TILE:
|
|
filter = SkTileImageFilter::Make(make_rect(), make_rect(), make_image_filter(false));
|
|
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 || canBeNull) ? filter : make_image_filter(canBeNull);
|
|
}
|
|
|
|
static SkImageFilter* make_serialized_image_filter() {
|
|
sk_sp<SkImageFilter> filter(make_image_filter(false));
|
|
SkAutoTUnref<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) {
|
|
if (R(250) == 1) { // 0.4% of the time, flip a bit or byte
|
|
if (R(10) == 1) { // Then 10% of the time, change a whole byte
|
|
switch(R(3)) {
|
|
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 {
|
|
*p ^= (1 << R(8));
|
|
}
|
|
}
|
|
}
|
|
#endif // SK_ADD_RANDOM_BIT_FLIPS
|
|
SkFlattenable* flattenable = SkValidatingDeserializeFlattenable(ptr, len,
|
|
SkImageFilter::GetFlattenableType());
|
|
return static_cast<SkImageFilter*>(flattenable);
|
|
}
|
|
|
|
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;
|
|
SkImageFilter* filter = make_serialized_image_filter();
|
|
|
|
SkPaint paint;
|
|
SkSafeUnref(paint.setImageFilter(filter));
|
|
SkBitmap bitmap;
|
|
SkCanvas canvas(bitmap);
|
|
drawClippedBitmap(&canvas, 0, 0, paint);
|
|
}
|