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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "Resources.h"
#include "SkData.h"
#include "SkImage.h"
#include "gm.h"
#include "sk_tool_utils.h"
static void draw_image(SkCanvas* canvas, const char* resource, int x, int y) {
SkAutoTUnref<SkImage> image(GetResourceAsImage(resource));
if (image) {
canvas->drawImage(image, SkIntToScalar(x), SkIntToScalar(y));
} else {
SkDebugf("\nCould not decode file '%s'. Did you forget"
" to set the resourcePath?\n", resource);
}
}
/*
This GM tests whether the image decoders properly decode each color
channel. Four copies of the same image should appear in the GM, and
the letter R should be red, B should be blue, G green, C cyan, M
magenta, Y yellow, and K black. In all but the JPEG version of the
image, the letters should be on a white disc on a transparent
background (rendered as a checkerboard). The JPEG image has a grey
background and compression artifacts.
*/
DEF_SIMPLE_GM(colorwheel, canvas, 256, 256) {
sk_tool_utils::draw_checkerboard(canvas);
draw_image(canvas, "color_wheel.png", 0, 0); // top left
draw_image(canvas, "color_wheel.gif", 128, 0); // top right
draw_image(canvas, "color_wheel.webp", 0, 128); // bottom left
draw_image(canvas, "color_wheel.jpg", 128, 128); // bottom right
}
DEF_SIMPLE_GM(colorwheelnative, canvas, 128, 28) {
SkPaint paint;
sk_tool_utils::set_portable_typeface(&paint, nullptr, SkTypeface::kBold);
paint.setTextSize(18.0f);
canvas->clear(sk_tool_utils::color_to_565(SK_ColorLTGRAY));
paint.setColor(SK_ColorRED);
canvas->drawText("R", 1, 8.0f, 20.0f, paint);
paint.setColor(SK_ColorGREEN);
canvas->drawText("G", 1, 24.0f, 20.0f, paint);
paint.setColor(SK_ColorBLUE);
canvas->drawText("B", 1, 40.0f, 20.0f, paint);
paint.setColor(SK_ColorCYAN);
canvas->drawText("C", 1, 56.0f, 20.0f, paint);
paint.setColor(SK_ColorMAGENTA);
canvas->drawText("M", 1, 72.0f, 20.0f, paint);
paint.setColor(SK_ColorYELLOW);
canvas->drawText("Y", 1, 88.0f, 20.0f, paint);
paint.setColor(SK_ColorBLACK);
canvas->drawText("K", 1, 104.0f, 20.0f, paint);
}
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