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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/gfx/gtk_util.h"
#include <gdk/gdk.h>
#include <gtk/gtk.h>
#include "base/gfx/rect.h"
namespace gfx {
const GdkColor kGdkWhite = GDK_COLOR_RGB(0xff, 0xff, 0xff);
const GdkColor kGdkBlack = GDK_COLOR_RGB(0x00, 0x00, 0x00);
const GdkColor kGdkGreen = GDK_COLOR_RGB(0x00, 0xff, 0x00);
void SubtractRectanglesFromRegion(GdkRegion* region,
const std::vector<Rect>& cutouts) {
for (size_t i = 0; i < cutouts.size(); ++i) {
GdkRectangle rect = cutouts[i].ToGdkRectangle();
GdkRegion* rect_region = gdk_region_rectangle(&rect);
gdk_region_subtract(region, rect_region);
// TODO(deanm): It would be nice to be able to reuse the GdkRegion here.
gdk_region_destroy(rect_region);
}
}
uint8_t* BGRAToRGBA(const uint8_t* pixels, int width, int height, int stride) {
if (stride == 0)
stride = width * 4;
guchar* new_pixels = static_cast<guchar*>(malloc(height * stride));
// We have to copy the pixels and swap from BGRA to RGBA.
for (int i = 0; i < height; ++i) {
for (int j = 0; j < width; ++j) {
int idx = i * stride + j * 4;
new_pixels[idx] = pixels[idx + 2];
new_pixels[idx + 1] = pixels[idx + 1];
new_pixels[idx + 2] = pixels[idx];
new_pixels[idx + 3] = pixels[idx + 3];
}
}
return new_pixels;
}
} // namespace gfx
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