| /* |
| * Copyright 2014 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #include "sk_tool_utils.h" |
| |
| #include "Resources.h" |
| #include "SkBitmap.h" |
| #include "SkCanvas.h" |
| #include "SkCommonFlags.h" |
| #include "SkFontMgr.h" |
| #include "SkFontStyle.h" |
| #include "SkImage.h" |
| #include "SkPixelRef.h" |
| #include "SkPM4f.h" |
| #include "SkPoint3.h" |
| #include "SkShader.h" |
| #include "SkSurface.h" |
| #include "SkTestScalerContext.h" |
| #include "SkTextBlob.h" |
| |
| namespace sk_tool_utils { |
| |
| static const char* platform_os_name() { |
| for (int index = 0; index < FLAGS_key.count(); index += 2) { |
| if (!strcmp("os", FLAGS_key[index])) { |
| return FLAGS_key[index + 1]; |
| } |
| } |
| return ""; |
| } |
| |
| sk_sp<SkTypeface> emoji_typeface() { |
| #if defined(SK_BUILD_FOR_WIN) |
| sk_sp<SkFontMgr> fm(SkFontMgr::RefDefault()); |
| const char *colorEmojiFontName = "Segoe UI Emoji"; |
| sk_sp<SkTypeface> typeface(fm->matchFamilyStyle(colorEmojiFontName, SkFontStyle())); |
| if (typeface) { |
| return typeface; |
| } |
| sk_sp<SkTypeface> fallback(fm->matchFamilyStyleCharacter( |
| colorEmojiFontName, SkFontStyle(), nullptr /* bcp47 */, 0 /* bcp47Count */, |
| 0x1f4b0 /* character: 💰 */)); |
| if (fallback) { |
| return fallback; |
| } |
| // If we don't have Segoe UI Emoji and can't find a fallback, try Segoe UI Symbol. |
| // Windows 7 does not have Segoe UI Emoji; Segoe UI Symbol has the (non - color) emoji. |
| return SkTypeface::MakeFromName("Segoe UI Symbol", SkFontStyle()); |
| |
| #elif defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS) |
| return SkTypeface::MakeFromName("Apple Color Emoji", SkFontStyle()); |
| |
| #else |
| return MakeResourceAsTypeface("fonts/Funkster.ttf"); |
| |
| #endif |
| } |
| |
| const char* emoji_sample_text() { |
| #if defined(SK_BUILD_FOR_WIN) || defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS) |
| return "\xF0\x9F\x92\xB0" "\xF0\x9F\x8F\xA1" "\xF0\x9F\x8E\x85" // 💰🏡🎅 |
| "\xF0\x9F\x8D\xAA" "\xF0\x9F\x8D\x95" "\xF0\x9F\x9A\x80" // 🍪🍕🚀 |
| "\xF0\x9F\x9A\xBB" "\xF0\x9F\x92\xA9" "\xF0\x9F\x93\xB7" // 🚻💩📷 |
| "\xF0\x9F\x93\xA6" // 📦 |
| "\xF0\x9F\x87\xBA" "\xF0\x9F\x87\xB8" "\xF0\x9F\x87\xA6"; // 🇺🇸🇦 |
| #else |
| return "Hamburgefons"; |
| #endif |
| } |
| |
| static bool extra_config_contains(const char* substring) { |
| for (int index = 0; index < FLAGS_key.count(); index += 2) { |
| if (0 == strcmp("extra_config", FLAGS_key[index]) |
| && strstr(FLAGS_key[index + 1], substring)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| const char* platform_font_manager() { |
| if (extra_config_contains("GDI")) { |
| return "GDI"; |
| } |
| if (extra_config_contains("NativeFonts")){ |
| return platform_os_name(); |
| } |
| return ""; |
| } |
| |
| |
| const char* colortype_name(SkColorType ct) { |
| switch (ct) { |
| case kUnknown_SkColorType: return "Unknown"; |
| case kAlpha_8_SkColorType: return "Alpha_8"; |
| case kARGB_4444_SkColorType: return "ARGB_4444"; |
| case kRGB_565_SkColorType: return "RGB_565"; |
| case kRGBA_8888_SkColorType: return "RGBA_8888"; |
| case kBGRA_8888_SkColorType: return "BGRA_8888"; |
| case kRGBA_F16_SkColorType: return "RGBA_F16"; |
| default: |
| SkASSERT(false); |
| return "unexpected colortype"; |
| } |
| } |
| |
| SkColor color_to_565(SkColor color) { |
| SkPMColor pmColor = SkPreMultiplyColor(color); |
| U16CPU color16 = SkPixel32ToPixel16(pmColor); |
| return SkPixel16ToColor(color16); |
| } |
| |
| sk_sp<SkTypeface> create_portable_typeface(const char* name, SkFontStyle style) { |
| return create_font(name, style); |
| } |
| |
| void set_portable_typeface(SkPaint* paint, const char* name, SkFontStyle style) { |
| paint->setTypeface(create_font(name, style)); |
| } |
| |
| void write_pixels(SkCanvas* canvas, const SkBitmap& bitmap, int x, int y, |
| SkColorType colorType, SkAlphaType alphaType) { |
| SkBitmap tmp(bitmap); |
| const SkImageInfo info = SkImageInfo::Make(tmp.width(), tmp.height(), colorType, alphaType); |
| |
| canvas->writePixels(info, tmp.getPixels(), tmp.rowBytes(), x, y); |
| } |
| |
| sk_sp<SkShader> create_checkerboard_shader(SkColor c1, SkColor c2, int size) { |
| SkBitmap bm; |
| bm.allocPixels(SkImageInfo::MakeS32(2 * size, 2 * size, kPremul_SkAlphaType)); |
| bm.eraseColor(c1); |
| bm.eraseArea(SkIRect::MakeLTRB(0, 0, size, size), c2); |
| bm.eraseArea(SkIRect::MakeLTRB(size, size, 2 * size, 2 * size), c2); |
| return SkShader::MakeBitmapShader( |
| bm, SkShader::kRepeat_TileMode, SkShader::kRepeat_TileMode); |
| } |
| |
| SkBitmap create_checkerboard_bitmap(int w, int h, SkColor c1, SkColor c2, int checkSize) { |
| SkBitmap bitmap; |
| bitmap.allocPixels(SkImageInfo::MakeS32(w, h, kPremul_SkAlphaType)); |
| SkCanvas canvas(bitmap); |
| |
| sk_tool_utils::draw_checkerboard(&canvas, c1, c2, checkSize); |
| return bitmap; |
| } |
| |
| void draw_checkerboard(SkCanvas* canvas, SkColor c1, SkColor c2, int size) { |
| SkPaint paint; |
| paint.setShader(create_checkerboard_shader(c1, c2, size)); |
| paint.setBlendMode(SkBlendMode::kSrc); |
| canvas->drawPaint(paint); |
| } |
| |
| SkBitmap create_string_bitmap(int w, int h, SkColor c, int x, int y, |
| int textSize, const char* str) { |
| SkBitmap bitmap; |
| bitmap.allocN32Pixels(w, h); |
| SkCanvas canvas(bitmap); |
| |
| SkPaint paint; |
| paint.setAntiAlias(true); |
| sk_tool_utils::set_portable_typeface(&paint); |
| paint.setColor(c); |
| paint.setTextSize(SkIntToScalar(textSize)); |
| |
| canvas.clear(0x00000000); |
| canvas.drawString(str, SkIntToScalar(x), SkIntToScalar(y), paint); |
| |
| // Tag data as sRGB (without doing any color space conversion). Color-space aware configs |
| // will process this correctly but legacy configs will render as if this returned N32. |
| SkBitmap result; |
| result.setInfo(SkImageInfo::MakeS32(w, h, kPremul_SkAlphaType)); |
| result.setPixelRef(sk_ref_sp(bitmap.pixelRef()), 0, 0); |
| return result; |
| } |
| |
| void add_to_text_blob_w_len(SkTextBlobBuilder* builder, const char* text, size_t len, |
| const SkPaint& origPaint, SkScalar x, SkScalar y) { |
| SkPaint paint(origPaint); |
| SkTDArray<uint16_t> glyphs; |
| |
| glyphs.append(paint.textToGlyphs(text, len, nullptr)); |
| paint.textToGlyphs(text, len, glyphs.begin()); |
| |
| paint.setTextEncoding(SkPaint::kGlyphID_TextEncoding); |
| const SkTextBlobBuilder::RunBuffer& run = builder->allocRun(paint, glyphs.count(), x, y, |
| nullptr); |
| memcpy(run.glyphs, glyphs.begin(), glyphs.count() * sizeof(uint16_t)); |
| } |
| |
| void add_to_text_blob(SkTextBlobBuilder* builder, const char* text, |
| const SkPaint& origPaint, SkScalar x, SkScalar y) { |
| add_to_text_blob_w_len(builder, text, strlen(text), origPaint, x, y); |
| } |
| |
| SkPath make_star(const SkRect& bounds, int numPts, int step) { |
| SkPath path; |
| path.setFillType(SkPath::kEvenOdd_FillType); |
| path.moveTo(0,-1); |
| for (int i = 1; i < numPts; ++i) { |
| int idx = i*step; |
| SkScalar theta = idx * 2*SK_ScalarPI/numPts + SK_ScalarPI/2; |
| SkScalar x = SkScalarCos(theta); |
| SkScalar y = -SkScalarSin(theta); |
| path.lineTo(x, y); |
| } |
| path.transform(SkMatrix::MakeRectToRect(path.getBounds(), bounds, SkMatrix::kFill_ScaleToFit)); |
| return path; |
| } |
| |
| #if !defined(__clang__) && defined(_MSC_VER) |
| // MSVC takes ~2 minutes to compile this function with optimization. |
| // We don't really care to wait that long for this function. |
| #pragma optimize("", off) |
| #endif |
| void make_big_path(SkPath& path) { |
| #include "BigPathBench.inc" |
| } |
| |
| static float gaussian2d_value(int x, int y, float sigma) { |
| // don't bother with the scale term since we're just going to normalize the |
| // kernel anyways |
| float temp = expf(-(x*x + y*y)/(2*sigma*sigma)); |
| return temp; |
| } |
| |
| static float* create_2d_kernel(float sigma, int* filterSize) { |
| // We will actually take 2*halfFilterSize+1 samples (i.e., our filter kernel |
| // sizes are always odd) |
| int halfFilterSize = SkScalarCeilToInt(6*sigma)/2; |
| int wh = *filterSize = 2*halfFilterSize + 1; |
| |
| float* temp = new float[wh*wh]; |
| |
| float filterTot = 0.0f; |
| for (int yOff = 0; yOff < wh; ++yOff) { |
| for (int xOff = 0; xOff < wh; ++xOff) { |
| temp[yOff*wh+xOff] = gaussian2d_value(xOff-halfFilterSize, yOff-halfFilterSize, sigma); |
| |
| filterTot += temp[yOff*wh+xOff]; |
| } |
| } |
| |
| // normalize the kernel |
| for (int yOff = 0; yOff < wh; ++yOff) { |
| for (int xOff = 0; xOff < wh; ++xOff) { |
| temp[yOff*wh+xOff] /= filterTot; |
| } |
| } |
| |
| return temp; |
| } |
| |
| static SkPMColor blur_pixel(const SkBitmap& bm, int x, int y, float* kernel, int wh) { |
| SkASSERT(wh & 0x1); |
| |
| int halfFilterSize = (wh-1)/2; |
| |
| float r = 0.0f, g = 0.0f, b = 0.0f; |
| for (int yOff = 0; yOff < wh; ++yOff) { |
| int ySamp = y + yOff - halfFilterSize; |
| |
| if (ySamp < 0) { |
| ySamp = 0; |
| } else if (ySamp > bm.height()-1) { |
| ySamp = bm.height()-1; |
| } |
| |
| for (int xOff = 0; xOff < wh; ++xOff) { |
| int xSamp = x + xOff - halfFilterSize; |
| |
| if (xSamp < 0) { |
| xSamp = 0; |
| } else if (xSamp > bm.width()-1) { |
| xSamp = bm.width()-1; |
| } |
| |
| float filter = kernel[yOff*wh + xOff]; |
| |
| SkPMColor c = *bm.getAddr32(xSamp, ySamp); |
| |
| r += SkGetPackedR32(c) * filter; |
| g += SkGetPackedG32(c) * filter; |
| b += SkGetPackedB32(c) * filter; |
| } |
| } |
| |
| U8CPU r8, g8, b8; |
| |
| r8 = (U8CPU) (r+0.5f); |
| g8 = (U8CPU) (g+0.5f); |
| b8 = (U8CPU) (b+0.5f); |
| |
| return SkPackARGB32(255, r8, g8, b8); |
| } |
| |
| SkBitmap slow_blur(const SkBitmap& src, float sigma) { |
| SkBitmap dst; |
| |
| dst.allocN32Pixels(src.width(), src.height(), true); |
| |
| int wh; |
| std::unique_ptr<float[]> kernel(create_2d_kernel(sigma, &wh)); |
| |
| for (int y = 0; y < src.height(); ++y) { |
| for (int x = 0; x < src.width(); ++x) { |
| *dst.getAddr32(x, y) = blur_pixel(src, x, y, kernel.get(), wh); |
| } |
| } |
| |
| return dst; |
| } |
| |
| // compute the intersection point between the diagonal and the ellipse in the |
| // lower right corner |
| static SkPoint intersection(SkScalar w, SkScalar h) { |
| SkASSERT(w > 0.0f || h > 0.0f); |
| |
| return SkPoint::Make(w / SK_ScalarSqrt2, h / SK_ScalarSqrt2); |
| } |
| |
| // Use the intersection of the corners' diagonals with their ellipses to shrink |
| // the bounding rect |
| SkRect compute_central_occluder(const SkRRect& rr) { |
| const SkRect r = rr.getBounds(); |
| |
| SkScalar newL = r.fLeft, newT = r.fTop, newR = r.fRight, newB = r.fBottom; |
| |
| SkVector radii = rr.radii(SkRRect::kUpperLeft_Corner); |
| if (!radii.isZero()) { |
| SkPoint p = intersection(radii.fX, radii.fY); |
| |
| newL = SkTMax(newL, r.fLeft + radii.fX - p.fX); |
| newT = SkTMax(newT, r.fTop + radii.fY - p.fY); |
| } |
| |
| radii = rr.radii(SkRRect::kUpperRight_Corner); |
| if (!radii.isZero()) { |
| SkPoint p = intersection(radii.fX, radii.fY); |
| |
| newR = SkTMin(newR, r.fRight + p.fX - radii.fX); |
| newT = SkTMax(newT, r.fTop + radii.fY - p.fY); |
| } |
| |
| radii = rr.radii(SkRRect::kLowerRight_Corner); |
| if (!radii.isZero()) { |
| SkPoint p = intersection(radii.fX, radii.fY); |
| |
| newR = SkTMin(newR, r.fRight + p.fX - radii.fX); |
| newB = SkTMin(newB, r.fBottom - radii.fY + p.fY); |
| } |
| |
| radii = rr.radii(SkRRect::kLowerLeft_Corner); |
| if (!radii.isZero()) { |
| SkPoint p = intersection(radii.fX, radii.fY); |
| |
| newL = SkTMax(newL, r.fLeft + radii.fX - p.fX); |
| newB = SkTMin(newB, r.fBottom - radii.fY + p.fY); |
| } |
| |
| return SkRect::MakeLTRB(newL, newT, newR, newB); |
| } |
| |
| // The widest inset rect |
| SkRect compute_widest_occluder(const SkRRect& rr) { |
| const SkRect& r = rr.getBounds(); |
| |
| const SkVector& ul = rr.radii(SkRRect::kUpperLeft_Corner); |
| const SkVector& ur = rr.radii(SkRRect::kUpperRight_Corner); |
| const SkVector& lr = rr.radii(SkRRect::kLowerRight_Corner); |
| const SkVector& ll = rr.radii(SkRRect::kLowerLeft_Corner); |
| |
| SkScalar maxT = SkTMax(ul.fY, ur.fY); |
| SkScalar maxB = SkTMax(ll.fY, lr.fY); |
| |
| return SkRect::MakeLTRB(r.fLeft, r.fTop + maxT, r.fRight, r.fBottom - maxB); |
| |
| } |
| |
| // The tallest inset rect |
| SkRect compute_tallest_occluder(const SkRRect& rr) { |
| const SkRect& r = rr.getBounds(); |
| |
| const SkVector& ul = rr.radii(SkRRect::kUpperLeft_Corner); |
| const SkVector& ur = rr.radii(SkRRect::kUpperRight_Corner); |
| const SkVector& lr = rr.radii(SkRRect::kLowerRight_Corner); |
| const SkVector& ll = rr.radii(SkRRect::kLowerLeft_Corner); |
| |
| SkScalar maxL = SkTMax(ul.fX, ll.fX); |
| SkScalar maxR = SkTMax(ur.fX, lr.fX); |
| |
| return SkRect::MakeLTRB(r.fLeft + maxL, r.fTop, r.fRight - maxR, r.fBottom); |
| } |
| |
| bool copy_to(SkBitmap* dst, SkColorType dstColorType, const SkBitmap& src) { |
| SkPixmap srcPM; |
| if (!src.peekPixels(&srcPM)) { |
| return false; |
| } |
| |
| SkBitmap tmpDst; |
| SkImageInfo dstInfo = srcPM.info().makeColorType(dstColorType); |
| if (!tmpDst.setInfo(dstInfo)) { |
| return false; |
| } |
| |
| if (!tmpDst.tryAllocPixels()) { |
| return false; |
| } |
| |
| SkPixmap dstPM; |
| if (!tmpDst.peekPixels(&dstPM)) { |
| return false; |
| } |
| |
| if (!srcPM.readPixels(dstPM)) { |
| return false; |
| } |
| |
| dst->swap(tmpDst); |
| return true; |
| } |
| |
| void copy_to_g8(SkBitmap* dst, const SkBitmap& src) { |
| SkASSERT(kBGRA_8888_SkColorType == src.colorType() || |
| kRGBA_8888_SkColorType == src.colorType()); |
| |
| SkImageInfo grayInfo = src.info().makeColorType(kGray_8_SkColorType); |
| dst->allocPixels(grayInfo); |
| uint8_t* dst8 = (uint8_t*)dst->getPixels(); |
| const uint32_t* src32 = (const uint32_t*)src.getPixels(); |
| |
| const int w = src.width(); |
| const int h = src.height(); |
| const bool isBGRA = (kBGRA_8888_SkColorType == src.colorType()); |
| for (int y = 0; y < h; ++y) { |
| if (isBGRA) { |
| // BGRA |
| for (int x = 0; x < w; ++x) { |
| uint32_t s = src32[x]; |
| dst8[x] = SkComputeLuminance((s >> 16) & 0xFF, (s >> 8) & 0xFF, s & 0xFF); |
| } |
| } else { |
| // RGBA |
| for (int x = 0; x < w; ++x) { |
| uint32_t s = src32[x]; |
| dst8[x] = SkComputeLuminance(s & 0xFF, (s >> 8) & 0xFF, (s >> 16) & 0xFF); |
| } |
| } |
| src32 = (const uint32_t*)((const char*)src32 + src.rowBytes()); |
| dst8 += dst->rowBytes(); |
| } |
| } |
| |
| ////////////////////////////////////////////////////////////////////////////////////////////// |
| |
| static int scale255(float x) { |
| return sk_float_round2int(x * 255); |
| } |
| |
| static unsigned diff(const SkColorType ct, const void* a, const void* b) { |
| int dr = 0, |
| dg = 0, |
| db = 0, |
| da = 0; |
| switch (ct) { |
| case kRGBA_8888_SkColorType: |
| case kBGRA_8888_SkColorType: { |
| SkPMColor c0 = *(const SkPMColor*)a; |
| SkPMColor c1 = *(const SkPMColor*)b; |
| dr = SkGetPackedR32(c0) - SkGetPackedR32(c1); |
| dg = SkGetPackedG32(c0) - SkGetPackedG32(c1); |
| db = SkGetPackedB32(c0) - SkGetPackedB32(c1); |
| da = SkGetPackedA32(c0) - SkGetPackedA32(c1); |
| } break; |
| case kRGB_565_SkColorType: { |
| uint16_t c0 = *(const uint16_t*)a; |
| uint16_t c1 = *(const uint16_t*)b; |
| dr = SkGetPackedR16(c0) - SkGetPackedR16(c1); |
| dg = SkGetPackedG16(c0) - SkGetPackedG16(c1); |
| db = SkGetPackedB16(c0) - SkGetPackedB16(c1); |
| } break; |
| case kARGB_4444_SkColorType: { |
| uint16_t c0 = *(const uint16_t*)a; |
| uint16_t c1 = *(const uint16_t*)b; |
| dr = SkGetPackedR4444(c0) - SkGetPackedR4444(c1); |
| dg = SkGetPackedG4444(c0) - SkGetPackedG4444(c1); |
| db = SkGetPackedB4444(c0) - SkGetPackedB4444(c1); |
| da = SkGetPackedA4444(c0) - SkGetPackedA4444(c1); |
| } break; |
| case kAlpha_8_SkColorType: |
| case kGray_8_SkColorType: |
| da = (const uint8_t*)a - (const uint8_t*)b; |
| break; |
| case kRGBA_F16_SkColorType: { |
| const SkPM4f* c0 = (const SkPM4f*)a; |
| const SkPM4f* c1 = (const SkPM4f*)b; |
| dr = scale255(c0->r() - c1->r()); |
| dg = scale255(c0->g() - c1->g()); |
| db = scale255(c0->b() - c1->b()); |
| da = scale255(c0->a() - c1->a()); |
| } break; |
| default: |
| return 0; |
| } |
| dr = SkAbs32(dr); |
| dg = SkAbs32(dg); |
| db = SkAbs32(db); |
| da = SkAbs32(da); |
| return SkMax32(dr, SkMax32(dg, SkMax32(db, da))); |
| } |
| |
| bool equal_pixels(const SkPixmap& a, const SkPixmap& b, unsigned maxDiff, |
| bool respectColorSpace) { |
| if (a.width() != b.width() || |
| a.height() != b.height() || |
| a.colorType() != b.colorType() || |
| (respectColorSpace && (a.colorSpace() != b.colorSpace()))) |
| { |
| return false; |
| } |
| |
| for (int y = 0; y < a.height(); ++y) { |
| const char* aptr = (const char*)a.addr(0, y); |
| const char* bptr = (const char*)b.addr(0, y); |
| if (memcmp(aptr, bptr, a.width() * a.info().bytesPerPixel())) { |
| for (int x = 0; x < a.width(); ++x) { |
| if (diff(a.colorType(), a.addr(x, y), b.addr(x, y)) > maxDiff) { |
| return false; |
| } |
| } |
| } |
| aptr += a.rowBytes(); |
| bptr += b.rowBytes(); |
| } |
| return true; |
| } |
| |
| bool equal_pixels(const SkBitmap& bm0, const SkBitmap& bm1, unsigned maxDiff, |
| bool respectColorSpaces) { |
| SkPixmap pm0, pm1; |
| return bm0.peekPixels(&pm0) && bm1.peekPixels(&pm1) && |
| equal_pixels(pm0, pm1, maxDiff, respectColorSpaces); |
| } |
| |
| bool equal_pixels(const SkImage* a, const SkImage* b, unsigned maxDiff, |
| bool respectColorSpaces) { |
| // ensure that peekPixels will succeed |
| auto imga = a->makeRasterImage(); |
| auto imgb = b->makeRasterImage(); |
| a = imga.get(); |
| b = imgb.get(); |
| |
| SkPixmap pm0, pm1; |
| return a->peekPixels(&pm0) && b->peekPixels(&pm1) && |
| equal_pixels(pm0, pm1, maxDiff, respectColorSpaces); |
| } |
| |
| sk_sp<SkSurface> makeSurface(SkCanvas* canvas, const SkImageInfo& info, |
| const SkSurfaceProps* props) { |
| auto surf = canvas->makeSurface(info, props); |
| if (!surf) { |
| surf = SkSurface::MakeRaster(info, props); |
| } |
| return surf; |
| } |
| } // namespace sk_tool_utils |