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/* -*- Mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/*
Copyright (C) 2009 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#include "common.h"
#include "red_pixmap_sw.h"
#include "debug.h"
#include "utils.h"
#include "pixels_source_p.h"
#include "x_platform.h"
RedPixmapSw::RedPixmapSw(int width, int height, RedDrawable::Format format,
bool top_bottom, RedWindow *win)
: RedPixmap(width, height, format, top_bottom)
{
ASSERT(format == RedDrawable::ARGB32 || format == RedDrawable::RGB32 ||
format == RedDrawable::RGB16_555 || format == RedDrawable::RGB16_565 ||
format == RedDrawable::A1);
ASSERT(sizeof(RedDrawable_p) <= PIXELES_SOURCE_OPAQUE_SIZE);
pixman_image_t *pixman_image;
XImage *image;
XShmSegmentInfo *shminfo;
_data = NULL;
XVisualInfo *vinfo;
int screen_num;
RedDrawable::Format screen_format;
screen_num = win ? win->get_screen_num() : 0;
vinfo = XPlatform::get_vinfo()[screen_num];
screen_format = XPlatform::get_screen_format(screen_num);
image = NULL;
shminfo = NULL;
/* Only create XImage if same format as screen (needs re-verifying at
draw time!) */
if (RedDrawable::format_copy_compatible(format, screen_format) ||
format == A1) {
image = XPlatform::create_x_image(format, width, height,
vinfo->depth, vinfo->visual,
&shminfo);
_stride = image->bytes_per_line;
_data = (uint8_t *)image->data;
} else {
_data = new uint8_t[height * _stride];
}
pixman_image = pixman_image_create_bits(RedDrawable::format_to_pixman(format),
_width, _height,
(uint32_t *)_data, _stride);
if (pixman_image == NULL) {
THROW("surf create failed");
}
((PixelsSource_p*)get_opaque())->type = PIXELS_SOURCE_TYPE_PIXMAP;
((PixelsSource_p*)get_opaque())->pixmap.shminfo = shminfo;
((PixelsSource_p*)get_opaque())->pixmap.x_image = image;
((PixelsSource_p*)get_opaque())->pixmap.pixman_image = pixman_image;
((PixelsSource_p*)get_opaque())->pixmap.format = format;
}
RedPixmapSw::~RedPixmapSw()
{
ASSERT(((PixelsSource_p*)get_opaque())->type == PIXELS_SOURCE_TYPE_PIXMAP);
XShmSegmentInfo *shminfo = ((PixelsSource_p*)get_opaque())->pixmap.shminfo;
XImage *image = ((PixelsSource_p*)get_opaque())->pixmap.x_image;
pixman_image_unref(((PixelsSource_p*)get_opaque())->pixmap.pixman_image);
if (image) {
XPlatform::free_x_image(image, shminfo);
} else {
delete[] _data;
}
}
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