| /* |
| * 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.h" |
| #include "sk_tool_utils.h" |
| #include "SkFont.h" |
| |
| namespace skiagm { |
| |
| static const char* color_type_name(SkColorType colorType) { |
| switch (colorType) { |
| case kUnknown_SkColorType: return "unknown"; |
| case kAlpha_8_SkColorType: return "A8"; |
| case kRGB_565_SkColorType: return "565"; |
| case kARGB_4444_SkColorType: return "4444"; |
| case kRGBA_8888_SkColorType: return "8888"; |
| case kRGB_888x_SkColorType: return "888x"; |
| case kBGRA_8888_SkColorType: return "8888"; |
| case kRGBA_1010102_SkColorType: return "1010102"; |
| case kRGB_101010x_SkColorType: return "101010x"; |
| case kGray_8_SkColorType: return "G8"; |
| case kRGBA_F16_SkColorType: return "F16"; |
| case kRGBA_F32_SkColorType: return "F32"; |
| } |
| return ""; |
| } |
| |
| constexpr SkColorType gColorTypes[] = { |
| kRGB_565_SkColorType, |
| kARGB_4444_SkColorType, |
| kN32_SkColorType, |
| }; |
| |
| #define NUM_CONFIGS SK_ARRAY_COUNT(gColorTypes) |
| |
| static void draw_checks(SkCanvas* canvas, int width, int height) { |
| SkPaint paint; |
| paint.setColor(SK_ColorRED); |
| canvas->drawRect(SkRect::MakeIWH(width/2, height/2), paint); |
| paint.setColor(SK_ColorGREEN); |
| canvas->drawRect({ SkIntToScalar(width/2), 0, SkIntToScalar(width), SkIntToScalar(height/2) }, |
| paint); |
| paint.setColor(SK_ColorBLUE); |
| canvas->drawRect({ 0, SkIntToScalar(height/2), SkIntToScalar(width/2), SkIntToScalar(height) }, |
| paint); |
| paint.setColor(SK_ColorYELLOW); |
| canvas->drawRect({ SkIntToScalar(width/2), SkIntToScalar(height/2), SkIntToScalar(width), |
| SkIntToScalar(height) }, paint); |
| } |
| |
| class BitmapCopyGM : public GM { |
| public: |
| SkBitmap fDst[NUM_CONFIGS]; |
| |
| BitmapCopyGM() { |
| this->setBGColor(0xFFDDDDDD); |
| } |
| |
| protected: |
| virtual SkString onShortName() { |
| return SkString("bitmapcopy"); |
| } |
| |
| virtual SkISize onISize() { |
| return SkISize::Make(540, 330); |
| } |
| |
| virtual void onDraw(SkCanvas* canvas) { |
| SkPaint paint; |
| SkScalar horizMargin = 10; |
| SkScalar vertMargin = 10; |
| |
| SkBitmap src; |
| src.allocN32Pixels(40, 40, kOpaque_SkAlphaType); |
| SkCanvas canvasTmp(src); |
| |
| draw_checks(&canvasTmp, 40, 40); |
| |
| for (unsigned i = 0; i < NUM_CONFIGS; ++i) { |
| sk_tool_utils::copy_to(&fDst[i], gColorTypes[i], src); |
| } |
| |
| canvas->clear(0xFFDDDDDD); |
| paint.setAntiAlias(true); |
| |
| SkFont font(sk_tool_utils::create_portable_typeface()); |
| |
| SkScalar width = SkIntToScalar(40); |
| SkScalar height = SkIntToScalar(40); |
| if (font.getSpacing() > height) { |
| height = font.getSpacing(); |
| } |
| for (unsigned i = 0; i < NUM_CONFIGS; i++) { |
| const char* name = color_type_name(src.colorType()); |
| SkScalar textWidth = font.measureText(name, strlen(name), kUTF8_SkTextEncoding); |
| if (textWidth > width) { |
| width = textWidth; |
| } |
| } |
| SkScalar horizOffset = width + horizMargin; |
| SkScalar vertOffset = height + vertMargin; |
| canvas->translate(SkIntToScalar(20), SkIntToScalar(20)); |
| |
| for (unsigned i = 0; i < NUM_CONFIGS; i++) { |
| canvas->save(); |
| // Draw destination config name |
| const char* name = color_type_name(fDst[i].colorType()); |
| SkScalar textWidth = font.measureText(name, strlen(name), kUTF8_SkTextEncoding); |
| SkScalar x = (width - textWidth) / SkScalar(2); |
| SkScalar y = font.getSpacing() / SkScalar(2); |
| canvas->drawSimpleText(name, strlen(name), kUTF8_SkTextEncoding, x, y, font, paint); |
| |
| // Draw destination bitmap |
| canvas->translate(0, vertOffset); |
| x = (width - 40) / SkScalar(2); |
| canvas->drawBitmap(fDst[i], x, 0, &paint); |
| canvas->restore(); |
| |
| canvas->translate(horizOffset, 0); |
| } |
| } |
| |
| private: |
| typedef GM INHERITED; |
| }; |
| |
| ////////////////////////////////////////////////////////////////////////////// |
| |
| DEF_GM( return new BitmapCopyGM; ) |
| } |