1 #if 0 // Disabled until updated to use current API. 2 // Copyright 2019 Google LLC. 3 // Use of this source code is governed by a BSD-style license that can be found in the LICENSE file. 4 #include "tools/fiddle/examples.h" 5 // HASH=22df72732e898a11773fbfe07388a546 6 REG_FIDDLE(ImageInfo_gammaCloseToSRGB, 256, 144, false, 0) { 7 void draw(SkCanvas* canvas) { 8 const int width = 256; 9 const int height = 64; 10 auto drawLabel = [=](const char* what, bool closeToSRGB) -> void { 11 SkString string; 12 string.printf("%s gamma is %s" "close to sRGB", what, closeToSRGB ? "" : "not "); 13 SkPaint paint; 14 paint.setAntiAlias(true); 15 canvas->drawString(string, 20, 56, paint); 16 }; 17 SkColor gradColors[] = { 0xFFFF7F00, 0xFF00FF7F, 0xFF0000FF, 0xFF7F7FFF }; 18 SkPoint gradPoints[] = { { 0, 0 }, { width, 0 }, { width * 2, 0 }, { width * 3, 0 } }; 19 SkPaint gradPaint; 20 gradPaint.setShader(SkGradientShader::MakeLinear(gradPoints, gradColors, nullptr, 21 SK_ARRAY_COUNT(gradColors), SkShader::kClamp_TileMode)); 22 canvas->drawRect(SkRect::MakeWH(width, height), gradPaint); 23 drawLabel("canvas", canvas->imageInfo().gammaCloseToSRGB()); 24 SkBitmap bitmap; 25 SkImageInfo offscreenInfo = SkImageInfo::MakeS32(width, height, kPremul_SkAlphaType); 26 bitmap.allocPixels(offscreenInfo); 27 SkCanvas sRGBOffscreen(bitmap); 28 sRGBOffscreen.drawRect(SkRect::MakeWH(width, height), gradPaint); 29 canvas->translate(0, 80); 30 canvas->drawBitmap(bitmap, 0, 0); 31 drawLabel("offscreen", offscreenInfo.gammaCloseToSRGB()); 32 } 33 } // END FIDDLE 34 #endif // Disabled until updated to use current API. 35