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
draw_image(SkCanvas * canvas,const char * resource,int x,int y)14 static void draw_image(SkCanvas* canvas, const char* resource, int x, int y) {
15 sk_sp<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, "images/color_wheel.png", 0, 0); // top left
36 draw_image(canvas, "images/color_wheel.gif", 128, 0); // top right
37 draw_image(canvas, "images/color_wheel.webp", 0, 128); // bottom left
38 draw_image(canvas, "images/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, "sans-serif", SkFontStyle::Bold());
44 paint.setTextSize(18.0f);
45
46 canvas->clear(sk_tool_utils::color_to_565(SK_ColorLTGRAY));
47 paint.setColor(SK_ColorRED);
48 canvas->drawString("R", 8.0f, 20.0f, paint);
49 paint.setColor(SK_ColorGREEN);
50 canvas->drawString("G", 24.0f, 20.0f, paint);
51 paint.setColor(SK_ColorBLUE);
52 canvas->drawString("B", 40.0f, 20.0f, paint);
53 paint.setColor(SK_ColorCYAN);
54 canvas->drawString("C", 56.0f, 20.0f, paint);
55 paint.setColor(SK_ColorMAGENTA);
56 canvas->drawString("M", 72.0f, 20.0f, paint);
57 paint.setColor(SK_ColorYELLOW);
58 canvas->drawString("Y", 88.0f, 20.0f, paint);
59 paint.setColor(SK_ColorBLACK);
60 canvas->drawString("K", 104.0f, 20.0f, paint);
61 }
62
