/* * Copyright 2011 Google Inc. * * Use of this source code is governed by a BSD-style license that can be * found in the LICENSE file. */ #include "gm/gm.h" #include "include/core/SkBitmap.h" #include "include/core/SkCanvas.h" #include "include/core/SkColor.h" #include "include/core/SkFont.h" #include "include/core/SkImageInfo.h" #include "include/core/SkPaint.h" #include "include/core/SkPoint.h" #include "include/core/SkRect.h" #include "include/core/SkRefCnt.h" #include "include/core/SkScalar.h" #include "include/core/SkShader.h" #include "include/core/SkSize.h" #include "include/core/SkString.h" #include "include/core/SkTileMode.h" #include "include/core/SkTypeface.h" #include "include/core/SkTypes.h" #include "include/effects/SkGradientShader.h" #include "include/utils/SkTextUtils.h" #include "tools/ToolUtils.h" const SkSamplingOptions gSamplings[] = { SkSamplingOptions(SkFilterMode::kNearest), SkSamplingOptions(SkFilterMode::kLinear), SkSamplingOptions(SkFilterMode::kLinear, SkMipmapMode::kLinear), SkSamplingOptions(SkCubicResampler::Mitchell()), SkSamplingOptions::Aniso(16), }; static void makebm(SkBitmap* bm, SkColorType ct, int w, int h) { bm->allocPixels(SkImageInfo::Make(w, h, ct, kPremul_SkAlphaType)); bm->eraseColor(SK_ColorTRANSPARENT); SkCanvas canvas(*bm); SkPoint pts[] = { { 0, 0 }, { SkIntToScalar(w), SkIntToScalar(h)} }; SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE }; SkScalar pos[] = { 0, SK_Scalar1/2, SK_Scalar1 }; SkPaint paint; paint.setDither(true); paint.setShader(SkGradientShader::MakeLinear(pts, colors, pos, SK_ARRAY_COUNT(colors), SkTileMode::kClamp)); canvas.drawPaint(paint); } static void setup(SkPaint* paint, const SkBitmap& bm, const SkSamplingOptions& sampling, SkTileMode tmx, SkTileMode tmy) { paint->setShader(bm.makeShader(tmx, tmy, sampling)); } constexpr SkColorType gColorTypes[] = { kN32_SkColorType, kRGB_565_SkColorType, }; class ScaledTilingGM : public skiagm::GM { public: ScaledTilingGM(bool powerOfTwoSize) : fPowerOfTwoSize(powerOfTwoSize) { } SkBitmap fTexture[SK_ARRAY_COUNT(gColorTypes)]; protected: enum { kPOTSize = 4, kNPOTSize = 3, }; SkString onShortName() override { SkString name("scaled_tilemodes"); if (!fPowerOfTwoSize) { name.append("_npot"); } return name; } SkISize onISize() override { return SkISize::Make(880, 880); } void onOnceBeforeDraw() override { int size = fPowerOfTwoSize ? kPOTSize : kNPOTSize; for (size_t i = 0; i < SK_ARRAY_COUNT(gColorTypes); i++) { makebm(&fTexture[i], gColorTypes[i], size, size); } } void onDraw(SkCanvas* canvas) override { SkPaint textPaint; SkFont font(ToolUtils::create_portable_typeface(), 12); float scale = 32.f/kPOTSize; int size = fPowerOfTwoSize ? kPOTSize : kNPOTSize; SkRect r = { 0, 0, SkIntToScalar(size*2), SkIntToScalar(size*2) }; const char* gColorTypeNames[] = { "8888" , "565", "4444" }; const char* gFilterNames[] = { "Nearest", "Linear", "Trilinear", "Mitchell", "Aniso" }; constexpr SkTileMode gModes[] = { SkTileMode::kClamp, SkTileMode::kRepeat, SkTileMode::kMirror }; const char* gModeNames[] = { "C", "R", "M" }; SkScalar y = SkIntToScalar(24); SkScalar x = SkIntToScalar(10)/scale; for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) { for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) { SkString str; str.printf("[%s,%s]", gModeNames[kx], gModeNames[ky]); SkTextUtils::DrawString(canvas, str.c_str(), scale*(x + r.width()/2), y, font, SkPaint(), SkTextUtils::kCenter_Align); x += r.width() * 4 / 3; } } y = SkIntToScalar(40) / scale; for (size_t i = 0; i < SK_ARRAY_COUNT(gColorTypes); i++) { for (size_t j = 0; j < SK_ARRAY_COUNT(gSamplings); j++) { x = SkIntToScalar(10)/scale; for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) { for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) { SkPaint paint; #if 1 // Temporary change to regen bitmap before each draw. This may help tracking down an issue // on SGX where resizing NPOT textures to POT textures exhibits a driver bug. if (!fPowerOfTwoSize) { makebm(&fTexture[i], gColorTypes[i], size, size); } #endif setup(&paint, fTexture[i], gSamplings[j], gModes[kx], gModes[ky]); paint.setDither(true); canvas->save(); canvas->scale(scale,scale); canvas->translate(x, y); canvas->drawRect(r, paint); canvas->restore(); x += r.width() * 4 / 3; } } canvas->drawString(SkStringPrintf("%s, %s", gColorTypeNames[i], gFilterNames[j]), scale * x, scale * (y + r.height() * 2 / 3), font, textPaint); y += r.height() * 4 / 3; } } } private: bool fPowerOfTwoSize; using INHERITED = skiagm::GM; }; constexpr int gWidth = 32; constexpr int gHeight = 32; static sk_sp make_bm(SkTileMode tx, SkTileMode ty) { SkBitmap bm; makebm(&bm, kN32_SkColorType, gWidth, gHeight); return bm.makeShader(tx, ty, SkSamplingOptions()); } static sk_sp make_grad(SkTileMode tx, SkTileMode ty) { SkPoint pts[] = { { 0, 0 }, { SkIntToScalar(gWidth), SkIntToScalar(gHeight)} }; SkPoint center = { SkIntToScalar(gWidth)/2, SkIntToScalar(gHeight)/2 }; SkScalar rad = SkIntToScalar(gWidth)/2; SkColor colors[] = {0xFFFF0000, ToolUtils::color_to_565(0xFF0044FF)}; int index = (int)ty; switch (index % 3) { case 0: return SkGradientShader::MakeLinear(pts, colors, nullptr, SK_ARRAY_COUNT(colors), tx); case 1: return SkGradientShader::MakeRadial(center, rad, colors, nullptr, SK_ARRAY_COUNT(colors), tx); case 2: return SkGradientShader::MakeSweep(center.fX, center.fY, colors, nullptr, SK_ARRAY_COUNT(colors)); } return nullptr; } typedef sk_sp (*ShaderProc)(SkTileMode, SkTileMode); class ScaledTiling2GM : public skiagm::GM { ShaderProc fProc; const char* fName; public: ScaledTiling2GM(ShaderProc proc, const char name[]) : fProc(proc), fName(name) {} private: SkString onShortName() override { return SkString(fName); } SkISize onISize() override { return SkISize::Make(650, 610); } void onDraw(SkCanvas* canvas) override { canvas->scale(SkIntToScalar(3)/2, SkIntToScalar(3)/2); const SkScalar w = SkIntToScalar(gWidth); const SkScalar h = SkIntToScalar(gHeight); SkRect r = { -w, -h, w*2, h*2 }; constexpr SkTileMode gModes[] = { SkTileMode::kClamp, SkTileMode::kRepeat, SkTileMode::kMirror }; const char* gModeNames[] = { "Clamp", "Repeat", "Mirror" }; SkScalar y = SkIntToScalar(24); SkScalar x = SkIntToScalar(66); SkFont font(ToolUtils::create_portable_typeface()); for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) { SkString str(gModeNames[kx]); SkTextUtils::DrawString(canvas, str.c_str(), x + r.width()/2, y, font, SkPaint(), SkTextUtils::kCenter_Align); x += r.width() * 4 / 3; } y += SkIntToScalar(16) + h; for (size_t ky = 0; ky < SK_ARRAY_COUNT(gModes); ky++) { x = SkIntToScalar(16) + w; SkString str(gModeNames[ky]); SkTextUtils::DrawString(canvas, str.c_str(), x, y + h/2, font, SkPaint(), SkTextUtils::kRight_Align); x += SkIntToScalar(50); for (size_t kx = 0; kx < SK_ARRAY_COUNT(gModes); kx++) { SkPaint paint; paint.setShader(fProc(gModes[kx], gModes[ky])); canvas->save(); canvas->translate(x, y); canvas->drawRect(r, paint); canvas->restore(); x += r.width() * 4 / 3; } y += r.height() * 4 / 3; } } }; ////////////////////////////////////////////////////////////////////////////// DEF_GM( return new ScaledTilingGM(true); ) DEF_GM( return new ScaledTilingGM(false); ) DEF_GM( return new ScaledTiling2GM(make_bm, "scaled_tilemode_bitmap"); ) DEF_GM( return new ScaledTiling2GM(make_grad, "scaled_tilemode_gradient"); )