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/*
Copyright (C) 2009 Red Hat, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "common.h"
#include "x_platform.h"
#include "pixels_source.h"
#include "pixels_source_p.h"
#include "utils.h"
#include "debug.h"
#include "res.h"
static void create_image(const PixmapHeader* pixmap, PixelsSource_p& pixels_source,
cairo_format_t cairo_format)
{
cairo_surface_t* cairo_surf;
XImage *image = new XImage;
memset(image, 0, sizeof(*image));
image->width = pixmap->width;
image->height = pixmap->height;
image->data = (char*)pixmap->data;
image->byte_order = LSBFirst;
image->bitmap_unit = 32;
image->bitmap_bit_order = LSBFirst;
image->bitmap_pad = 32;
image->bytes_per_line = pixmap->stride;
image->depth = XPlatform::get_vinfo()[0]->depth;
image->format = ZPixmap;
image->bits_per_pixel = 32;
image->red_mask = 0x00ff0000;
image->green_mask = 0x0000ff00;
image->blue_mask = 0x000000ff;
try {
if (!XInitImage(image)) {
THROW("init image failed");
}
cairo_surf = cairo_image_surface_create_for_data(pixmap->data, cairo_format,
pixmap->width, pixmap->height,
pixmap->stride);
if (cairo_surface_status(cairo_surf) != CAIRO_STATUS_SUCCESS) {
THROW("surf create failed");
}
} catch (...) {
delete image;
throw;
}
pixels_source.type = PIXELS_SOURCE_TYPE_PIXMAP;
pixels_source.pixmap.x_image = image;
pixels_source.pixmap.cairo_surf = cairo_surf;
}
PixelsSource::PixelsSource()
{
_origin.x = _origin.y = 0;
memset(_opaque, 0, sizeof(_opaque));
}
PixelsSource::~PixelsSource()
{
}
ImageFromRes::ImageFromRes(int res_id)
{
const PixmapHeader* pixmap = res_get_image(res_id);
if (!pixmap) {
THROW("no image %d", res_id);
}
create_image(pixmap, *(PixelsSource_p*)get_opaque(), CAIRO_FORMAT_RGB24);
}
ImageFromRes::~ImageFromRes()
{
cairo_surface_destroy(((PixelsSource_p*)get_opaque())->pixmap.cairo_surf);
delete ((PixelsSource_p*)get_opaque())->pixmap.x_image;
}
Point ImageFromRes::get_size()
{
XImage *image = ((PixelsSource_p*)get_opaque())->pixmap.x_image;
Point pt;
pt.x = image->width;
pt.y = image->height;
return pt;
}
AlphaImageFromRes::AlphaImageFromRes(int res_id)
{
const PixmapHeader* pixmap = res_get_image(res_id);
if (!pixmap) {
THROW("no image %d", res_id);
}
create_image(pixmap, *(PixelsSource_p*)get_opaque(), CAIRO_FORMAT_ARGB32);
}
AlphaImageFromRes::~AlphaImageFromRes()
{
cairo_surface_destroy(((PixelsSource_p*)get_opaque())->pixmap.cairo_surf);
delete ((PixelsSource_p*)get_opaque())->pixmap.x_image;
}
Point AlphaImageFromRes::get_size()
{
XImage *image = ((PixelsSource_p*)get_opaque())->pixmap.x_image;
Point pt;
pt.x = image->width;
pt.y = image->height;
return pt;
}
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