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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 "chrome/browser/icon_loader.h"
#include <gtk/gtk.h>
#include "base/file_util.h"
#include "base/gfx/png_decoder.h"
#include "base/logging.h"
#include "base/linux_util.h"
#include "base/message_loop.h"
#include "base/mime_util.h"
#include "base/thread.h"
#include "base/string_util.h"
#include "third_party/skia/include/core/SkBitmap.h"
void IconLoader::ReadIcon() {
int size = 48;
if (icon_size_ == NORMAL)
size = 32;
else if (icon_size_ == SMALL)
size = 16;
FilePath filename = mime_util::GetMimeIcon(group_, size);
GdkPixbuf* pixbuf = gdk_pixbuf_new_from_file_at_size(filename.value().c_str(),
size, size, NULL);
if (pixbuf) {
guchar* pixels = gdk_pixbuf_get_pixels(pixbuf);
int width = gdk_pixbuf_get_width(pixbuf);
int height = gdk_pixbuf_get_height(pixbuf);
DCHECK_EQ(width, size);
DCHECK_EQ(height, size);
int stride = gdk_pixbuf_get_rowstride(pixbuf);
if (!gdk_pixbuf_get_has_alpha(pixbuf)) {
LOG(WARNING) << "Got an image with no alpha channel, aborting load.";
} else {
uint8_t* BGRA_pixels = base::BGRAToRGBA(pixels, width, height, stride);
std::vector<unsigned char> pixel_vector;
pixel_vector.resize(height * stride);
memcpy(const_cast<unsigned char*>(pixel_vector.data()), BGRA_pixels,
height * stride);
bitmap_ = PNGDecoder::CreateSkBitmapFromBGRAFormat(pixel_vector,
width, height);
free(BGRA_pixels);
}
g_object_unref(pixbuf);
} else {
LOG(WARNING) << "Unsupported file type or load error: " << filename.value();
}
target_message_loop_->PostTask(FROM_HERE,
NewRunnableMethod(this, &IconLoader::NotifyDelegate));
}
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