1 /* 2 * Copyright 2014 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7 8 #include "Resources.h" 9 #include "SkData.h" 10 #include "SkImage.h" 11 #include "gm.h" 12 #include "sk_tool_utils.h" 13 14 static void draw_image(SkCanvas* canvas, const char* resource, int x, int y) { 15 SkAutoTUnref<SkImage> image(GetResourceAsImage(resource)); 16 if (image) { 17 canvas->drawImage(image, SkIntToScalar(x), SkIntToScalar(y)); 18 } else { 19 SkDebugf("\nCould not decode file '%s'. Did you forget" 20 " to set the resourcePath?\n", resource); 21 } 22 } 23 24 /* 25 This GM tests whether the image decoders properly decode each color 26 channel. Four copies of the same image should appear in the GM, and 27 the letter R should be red, B should be blue, G green, C cyan, M 28 magenta, Y yellow, and K black. In all but the JPEG version of the 29 image, the letters should be on a white disc on a transparent 30 background (rendered as a checkerboard). The JPEG image has a grey 31 background and compression artifacts. 32 */ 33 DEF_SIMPLE_GM(colorwheel, canvas, 256, 256) { 34 sk_tool_utils::draw_checkerboard(canvas); 35 draw_image(canvas, "color_wheel.png", 0, 0); // top left 36 draw_image(canvas, "color_wheel.gif", 128, 0); // top right 37 draw_image(canvas, "color_wheel.webp", 0, 128); // bottom left 38 draw_image(canvas, "color_wheel.jpg", 128, 128); // bottom right 39 } 40 41 DEF_SIMPLE_GM(colorwheelnative, canvas, 128, 28) { 42 SkPaint paint; 43 sk_tool_utils::set_portable_typeface(&paint, nullptr, SkTypeface::kBold); 44 paint.setTextSize(18.0f); 45 46 canvas->clear(sk_tool_utils::color_to_565(SK_ColorLTGRAY)); 47 paint.setColor(SK_ColorRED); 48 canvas->drawText("R", 1, 8.0f, 20.0f, paint); 49 paint.setColor(SK_ColorGREEN); 50 canvas->drawText("G", 1, 24.0f, 20.0f, paint); 51 paint.setColor(SK_ColorBLUE); 52 canvas->drawText("B", 1, 40.0f, 20.0f, paint); 53 paint.setColor(SK_ColorCYAN); 54 canvas->drawText("C", 1, 56.0f, 20.0f, paint); 55 paint.setColor(SK_ColorMAGENTA); 56 canvas->drawText("M", 1, 72.0f, 20.0f, paint); 57 paint.setColor(SK_ColorYELLOW); 58 canvas->drawText("Y", 1, 88.0f, 20.0f, paint); 59 paint.setColor(SK_ColorBLACK); 60 canvas->drawText("K", 1, 104.0f, 20.0f, paint); 61 } 62
