| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef ToolUtils_DEFINED |
| #define ToolUtils_DEFINED |
| |
| #include "include/core/SkColor.h" |
| #include "include/core/SkData.h" |
| #include "include/core/SkEncodedImageFormat.h" |
| #include "include/core/SkFont.h" |
| #include "include/core/SkFontStyle.h" |
| #include "include/core/SkFontTypes.h" |
| #include "include/core/SkImageEncoder.h" |
| #include "include/core/SkImageInfo.h" |
| #include "include/core/SkPixmap.h" |
| #include "include/core/SkRect.h" |
| #include "include/core/SkRefCnt.h" |
| #include "include/core/SkScalar.h" |
| #include "include/core/SkSpan.h" |
| #include "include/core/SkStream.h" |
| #include "include/core/SkSurface.h" |
| #include "include/core/SkTypeface.h" |
| #include "include/core/SkTypes.h" |
| #include "include/private/base/SkTArray.h" |
| #include "include/private/base/SkTDArray.h" |
| #include "include/utils/SkRandom.h" |
| #include "src/core/SkTInternalLList.h" |
| #include "tools/SkMetaData.h" |
| |
| #ifdef SK_GRAPHITE_ENABLED |
| #include "include/gpu/graphite/Recorder.h" |
| #endif |
| |
| class SkBitmap; |
| class SkCanvas; |
| class SkFontStyle; |
| class SkImage; |
| class SkPath; |
| class SkPixmap; |
| class SkRRect; |
| class SkShader; |
| class SkSurface; |
| class SkSurfaceProps; |
| class SkTextBlobBuilder; |
| class SkTypeface; |
| |
| namespace ToolUtils { |
| |
| const char* alphatype_name (SkAlphaType); |
| const char* colortype_name (SkColorType); |
| const char* colortype_depth(SkColorType); // like colortype_name, but channel order agnostic |
| const char* tilemode_name(SkTileMode); |
| |
| /** |
| * Map opaque colors from 8888 to 565. |
| */ |
| SkColor color_to_565(SkColor color); |
| |
| /* Return a color emoji typeface with planets to scale if available. */ |
| sk_sp<SkTypeface> planet_typeface(); |
| |
| /** Return a color emoji typeface if available. */ |
| sk_sp<SkTypeface> emoji_typeface(); |
| |
| /** Sample text for the emoji_typeface font. */ |
| constexpr const char* emoji_sample_text() { |
| return "\xF0\x9F\x98\x80" |
| " " |
| "\xE2\x99\xA2"; // 😀 ♢ |
| } |
| |
| /** A simple SkUserTypeface for testing. */ |
| sk_sp<SkTypeface> sample_user_typeface(); |
| |
| /** |
| * Returns a platform-independent text renderer. |
| */ |
| sk_sp<SkTypeface> create_portable_typeface(const char* name, SkFontStyle style); |
| |
| static inline sk_sp<SkTypeface> create_portable_typeface() { |
| return create_portable_typeface(nullptr, SkFontStyle()); |
| } |
| |
| void get_text_path(const SkFont&, |
| const void* text, |
| size_t length, |
| SkTextEncoding, |
| SkPath*, |
| const SkPoint* positions = nullptr); |
| |
| /** |
| * Returns true iff all of the pixels between the two images are identical. |
| * |
| * If the configs differ, return false. |
| */ |
| bool equal_pixels(const SkPixmap&, const SkPixmap&); |
| bool equal_pixels(const SkBitmap&, const SkBitmap&); |
| bool equal_pixels(const SkImage* a, const SkImage* b); |
| |
| /** Returns a newly created CheckerboardShader. */ |
| sk_sp<SkShader> create_checkerboard_shader(SkColor c1, SkColor c2, int size); |
| |
| /** Draw a checkerboard pattern in the current canvas, restricted to |
| the current clip, using SkXfermode::kSrc_Mode. */ |
| void draw_checkerboard(SkCanvas* canvas, SkColor color1, SkColor color2, int checkSize); |
| |
| /** Make it easier to create a bitmap-based checkerboard */ |
| SkBitmap create_checkerboard_bitmap(int w, int h, SkColor c1, SkColor c2, int checkSize); |
| |
| sk_sp<SkImage> create_checkerboard_image(int w, int h, SkColor c1, SkColor c2, int checkSize); |
| |
| /** A default checkerboard. */ |
| inline void draw_checkerboard(SkCanvas* canvas) { |
| ToolUtils::draw_checkerboard(canvas, 0xFF999999, 0xFF666666, 8); |
| } |
| |
| /** Create pixmaps to initialize a 32x32 image w/ or w/o mipmaps. |
| * Returns the number of levels (either 1 or 6). The mipmap levels will be colored as |
| * specified in 'colors' |
| */ |
| int make_pixmaps(SkColorType, |
| SkAlphaType, |
| bool withMips, |
| const SkColor4f colors[6], |
| SkPixmap pixmaps[6], |
| std::unique_ptr<char[]>* mem); |
| |
| SkBitmap create_string_bitmap(int w, int h, SkColor c, int x, int y, int textSize, const char* str); |
| sk_sp<SkImage> create_string_image(int w, int h, SkColor c, int x, int y, int textSize, const char* str); |
| |
| // If the canvas doesn't make a surface (e.g. recording), make a raster surface |
| sk_sp<SkSurface> makeSurface(SkCanvas*, const SkImageInfo&, const SkSurfaceProps* = nullptr); |
| |
| // A helper for inserting a drawtext call into a SkTextBlobBuilder |
| void add_to_text_blob_w_len(SkTextBlobBuilder*, |
| const char* text, |
| size_t len, |
| SkTextEncoding, |
| const SkFont&, |
| SkScalar x, |
| SkScalar y); |
| |
| void add_to_text_blob(SkTextBlobBuilder*, const char* text, const SkFont&, SkScalar x, SkScalar y); |
| |
| // Constructs a star by walking a 'numPts'-sided regular polygon with even/odd fill: |
| // |
| // moveTo(pts[0]); |
| // lineTo(pts[step % numPts]); |
| // ... |
| // lineTo(pts[(step * (N - 1)) % numPts]); |
| // |
| // numPts=5, step=2 will produce a classic five-point star. |
| // |
| // numPts and step must be co-prime. |
| SkPath make_star(const SkRect& bounds, int numPts = 5, int step = 2); |
| |
| void create_hemi_normal_map(SkBitmap* bm, const SkIRect& dst); |
| |
| void create_frustum_normal_map(SkBitmap* bm, const SkIRect& dst); |
| |
| void create_tetra_normal_map(SkBitmap* bm, const SkIRect& dst); |
| |
| // A helper object to test the topological sorting code (TopoSortBench.cpp & TopoSortTest.cpp) |
| class TopoTestNode : public SkRefCnt { |
| public: |
| TopoTestNode(int id) : fID(id) {} |
| |
| void dependsOn(TopoTestNode* src) { *fDependencies.append() = src; } |
| void targets(uint32_t target) { *fTargets.append() = target; } |
| |
| int id() const { return fID; } |
| void reset() { |
| fOutputPos = 0; |
| fTempMark = false; |
| fWasOutput = false; |
| } |
| |
| uint32_t outputPos() const { |
| SkASSERT(fWasOutput); |
| return fOutputPos; |
| } |
| |
| // check that the topological sort is valid for this node |
| bool check() { |
| if (!fWasOutput) { |
| return false; |
| } |
| |
| for (int i = 0; i < fDependencies.size(); ++i) { |
| if (!fDependencies[i]->fWasOutput) { |
| return false; |
| } |
| // This node should've been output after all the nodes on which it depends |
| if (fOutputPos < fDependencies[i]->outputPos()) { |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| // The following 7 methods are needed by the topological sort |
| static void SetTempMark(TopoTestNode* node) { node->fTempMark = true; } |
| static void ResetTempMark(TopoTestNode* node) { node->fTempMark = false; } |
| static bool IsTempMarked(TopoTestNode* node) { return node->fTempMark; } |
| static void Output(TopoTestNode* node, uint32_t outputPos) { |
| SkASSERT(!node->fWasOutput); |
| node->fOutputPos = outputPos; |
| node->fWasOutput = true; |
| } |
| static bool WasOutput(TopoTestNode* node) { return node->fWasOutput; } |
| static uint32_t GetIndex(TopoTestNode* node) { return node->outputPos(); } |
| static int NumDependencies(TopoTestNode* node) { return node->fDependencies.size(); } |
| static TopoTestNode* Dependency(TopoTestNode* node, int index) { |
| return node->fDependencies[index]; |
| } |
| static int NumTargets(TopoTestNode* node) { return node->fTargets.size(); } |
| static uint32_t GetTarget(TopoTestNode* node, int i) { return node->fTargets[i]; } |
| static uint32_t GetID(TopoTestNode* node) { return node->id(); } |
| |
| // Helper functions for TopoSortBench & TopoSortTest |
| static void AllocNodes(SkTArray<sk_sp<ToolUtils::TopoTestNode>>* graph, int num) { |
| graph->reserve_back(num); |
| |
| for (int i = 0; i < num; ++i) { |
| graph->push_back(sk_sp<TopoTestNode>(new TopoTestNode(i))); |
| } |
| } |
| |
| #ifdef SK_DEBUG |
| static void Print(const SkTArray<TopoTestNode*>& graph) { |
| for (int i = 0; i < graph.size(); ++i) { |
| SkDebugf("%d, ", graph[i]->id()); |
| } |
| SkDebugf("\n"); |
| } |
| #endif |
| |
| // randomize the array |
| static void Shuffle(SkSpan<sk_sp<TopoTestNode>> graph, SkRandom* rand) { |
| for (size_t i = graph.size() - 1; i > 0; --i) { |
| int swap = rand->nextU() % (i + 1); |
| |
| graph[i].swap(graph[swap]); |
| } |
| } |
| |
| SK_DECLARE_INTERNAL_LLIST_INTERFACE(TopoTestNode); |
| |
| private: |
| int fID; |
| uint32_t fOutputPos = 0; |
| bool fTempMark = false; |
| bool fWasOutput = false; |
| |
| SkTDArray<TopoTestNode*> fDependencies; |
| SkTDArray<uint32_t> fTargets; |
| }; |
| |
| template <typename T> |
| inline bool EncodeImageToFile(const char* path, const T& src, SkEncodedImageFormat f, int q) { |
| SkFILEWStream file(path); |
| return file.isValid() && SkEncodeImage(&file, src, f, q); |
| } |
| |
| bool copy_to(SkBitmap* dst, SkColorType dstCT, const SkBitmap& src); |
| void copy_to_g8(SkBitmap* dst, const SkBitmap& src); |
| |
| class PixelIter { |
| public: |
| PixelIter(); |
| PixelIter(SkSurface* surf) { |
| SkPixmap pm; |
| if (!surf->peekPixels(&pm)) { |
| pm.reset(); |
| } |
| this->reset(pm); |
| } |
| |
| void reset(const SkPixmap& pm) { |
| fPM = pm; |
| fLoc = {-1, 0}; |
| } |
| |
| void* next(SkIPoint* loc = nullptr) { |
| if (!fPM.addr()) { |
| return nullptr; |
| } |
| fLoc.fX += 1; |
| if (fLoc.fX >= fPM.width()) { |
| fLoc.fX = 0; |
| if (++fLoc.fY >= fPM.height()) { |
| this->setDone(); |
| return nullptr; |
| } |
| } |
| if (loc) { |
| *loc = fLoc; |
| } |
| return fPM.writable_addr(fLoc.fX, fLoc.fY); |
| } |
| |
| void setDone() { fPM.reset(); } |
| |
| private: |
| SkPixmap fPM; |
| SkIPoint fLoc; |
| }; |
| |
| using PathSniffCallback = void(const SkMatrix&, const SkPath&, const SkPaint&); |
| |
| // Calls the provided PathSniffCallback for each path in the given file. |
| // Supported file formats are .svg and .skp. |
| void sniff_paths(const char filepath[], std::function<PathSniffCallback>); |
| |
| #if SK_SUPPORT_GPU |
| sk_sp<SkImage> MakeTextureImage(SkCanvas* canvas, sk_sp<SkImage> orig); |
| #endif |
| |
| // Initialised with a font, this class can be called to setup GM UI with sliders for font |
| // variations, and returns a set of variation coordinates that matches what the sliders in the UI |
| // are set to. Useful for testing variable font properties, see colrv1.cpp. |
| class VariationSliders { |
| public: |
| VariationSliders() {} |
| |
| VariationSliders(SkTypeface*, |
| SkFontArguments::VariationPosition variationPosition = {nullptr, 0}); |
| |
| bool writeControls(SkMetaData* controls); |
| |
| /* Scans controls for information about the variation axes that the user may have configured. |
| * Optionally pass in a boolean to receive information on whether the axes were updated. */ |
| void readControls(const SkMetaData& controls, bool* changed = nullptr); |
| |
| SkSpan<const SkFontArguments::VariationPosition::Coordinate> getCoordinates(); |
| |
| static SkString tagToString(SkFourByteTag tag); |
| |
| private: |
| struct AxisSlider { |
| SkScalar current; |
| SkFontParameters::Variation::Axis axis; |
| SkString name; |
| }; |
| |
| std::vector<AxisSlider> fAxisSliders; |
| std::unique_ptr<SkFontArguments::VariationPosition::Coordinate[]> fCoords; |
| static constexpr size_t kAxisVarsSize = 3; |
| }; |
| |
| #ifdef SK_GRAPHITE_ENABLED |
| skgpu::graphite::RecorderOptions CreateTestingRecorderOptions(); |
| #endif |
| |
| } // namespace ToolUtils |
| |
| #endif // ToolUtils_DEFINED |