#include "config.h"
#include "BitmapImage.h"
#include "CString.h"
#include "GOwnPtr.h"
#include <cairo.h>
#include <gtk/gtk.h>
namespace WTF {
template <> void freeOwnedGPtr<GtkIconInfo>(GtkIconInfo* info)
{
if (info)
gtk_icon_info_free(info);
}
}
namespace WebCore {
static CString getThemeIconFileName(const char* name, int size)
{
GtkIconInfo* iconInfo = gtk_icon_theme_lookup_icon(gtk_icon_theme_get_default(),
name, size, GTK_ICON_LOOKUP_NO_SVG);
if (!iconInfo)
iconInfo = gtk_icon_theme_lookup_icon(gtk_icon_theme_get_default(),
GTK_STOCK_MISSING_IMAGE, size,
GTK_ICON_LOOKUP_NO_SVG);
if (iconInfo) {
GOwnPtr<GtkIconInfo> info(iconInfo);
return CString(gtk_icon_info_get_filename(info.get()));
}
return CString();
}
static PassRefPtr<SharedBuffer> loadResourceSharedBuffer(CString name)
{
GOwnPtr<gchar> content;
gsize length;
if (!g_file_get_contents(name.data(), &content.outPtr(), &length, 0))
return SharedBuffer::create();
return SharedBuffer::create(content.get(), length);
}
void BitmapImage::initPlatformData()
{
}
void BitmapImage::invalidatePlatformData()
{
}
PassRefPtr<Image> loadImageFromFile(CString fileName)
{
RefPtr<BitmapImage> img = BitmapImage::create();
if (!fileName.isNull()) {
RefPtr<SharedBuffer> buffer = loadResourceSharedBuffer(fileName);
img->setData(buffer.release(), true);
}
return img.release();
}
PassRefPtr<Image> Image::loadPlatformResource(const char* name)
{
CString fileName;
if (!strcmp("missingImage", name))
fileName = getThemeIconFileName(GTK_STOCK_MISSING_IMAGE, 16);
if (fileName.isNull())
fileName = String::format("%s/webkit-1.0/images/%s.png", DATA_DIR, name).utf8();
return loadImageFromFile(fileName);
}
PassRefPtr<Image> Image::loadPlatformThemeIcon(const char* name, int size)
{
return loadImageFromFile(getThemeIconFileName(name, size));
}
static inline unsigned char* getCairoSurfacePixel(unsigned char* data, uint x, uint y, uint rowStride)
{
return data + (y * rowStride) + x * 4;
}
static inline guchar* getGdkPixbufPixel(guchar* data, uint x, uint y, uint rowStride)
{
return data + (y * rowStride) + x * 4;
}
GdkPixbuf* BitmapImage::getGdkPixbuf()
{
int width = cairo_image_surface_get_width(frameAtIndex(currentFrame()));
int height = cairo_image_surface_get_height(frameAtIndex(currentFrame()));
unsigned char* surfaceData = cairo_image_surface_get_data(frameAtIndex(currentFrame()));
int surfaceRowStride = cairo_image_surface_get_stride(frameAtIndex(currentFrame()));
GdkPixbuf* dest = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
if (!dest)
return 0;
guchar* pixbufData = gdk_pixbuf_get_pixels(dest);
int pixbufRowStride = gdk_pixbuf_get_rowstride(dest);
for (int y = 0; y < height; y++) {
for (int x = 0; x < width; x++) {
unsigned char* source = getCairoSurfacePixel(surfaceData, x, y, surfaceRowStride);
guchar* dest = getGdkPixbufPixel(pixbufData, x, y, pixbufRowStride);
#if G_BYTE_ORDER == G_LITTLE_ENDIAN
guchar alpha = source[3];
dest[0] = alpha ? ((source[2] * 255) / alpha) : 0;
dest[1] = alpha ? ((source[1] * 255) / alpha) : 0;
dest[2] = alpha ? ((source[0] * 255) / alpha) : 0;
dest[3] = alpha;
#else
guchar alpha = source[0];
dest[0] = alpha ? ((source[1] * 255) / alpha) : 0;
dest[1] = alpha ? ((source[2] * 255) / alpha) : 0;
dest[2] = alpha ? ((source[3] * 255) / alpha) : 0;
dest[3] = alpha;
#endif
}
}
return dest;
}
}