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250ebdfad0
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/back/trunk@26620 72102866-910b-0410-8b05-ffd578937521
79 lines
2.4 KiB
Objective-C
79 lines
2.4 KiB
Objective-C
/*
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Copyright (C) 2002 Free Software Foundation, Inc.
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Author: Banlu Kemiyatorn <object at gmail dot com>
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This file is part of GNUstep.
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; see the file COPYING.LIB.
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If not, see <http://www.gnu.org/licenses/> or write to the
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Free Software Foundation, 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "config.h"
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#include "x11/XGServer.h"
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#include "x11/XGServerWindow.h"
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#include "x11/XWindowBuffer.h"
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#include "cairo/XGCairoXImageSurface.h"
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#include "cairo/XGCairoSurface.h"
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#define GSWINDEVICE ((gswindow_device_t *)gsDevice)
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@implementation XGCairoXImageSurface
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- (id) initWithDevice: (void *)device
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{
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struct XWindowBuffer_depth_info_s di;
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gsDevice = device;
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if (GSWINDEVICE->type == NSBackingStoreNonretained)
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{
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// FIXME: This is a hack to get non-reatined backing store working.
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// I see no reason, why it isn't working, as the code is identical
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// to the one in the art backend.
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RELEASE(self);
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return [[XGCairoSurface alloc] initWithDevice: device];
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}
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di.drawing_depth = GSWINDEVICE->depth;
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// FIXME: The next four lines may be wrong for depth <> 32.
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// But then art uses a depth of 24 for 32 bit modes. Strange!
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di.bytes_per_pixel = 4;
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di.inline_alpha = YES;
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di.inline_alpha_ofs = 0;
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// FIXME: This method is somewhat special as it does not return an autoreleased object
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wi = [XWindowBuffer windowBufferForWindow: GSWINDEVICE depthInfo: &di];
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_surface = cairo_image_surface_create_for_data((unsigned char*)wi->data,
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CAIRO_FORMAT_ARGB32,
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wi->sx, wi->sy,
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wi->bytes_per_line);
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return self;
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}
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- (void) dealloc
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{
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DESTROY(wi);
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[super dealloc];
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}
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- (NSSize) size
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{
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return GSWINDEVICE->xframe.size;
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}
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@end
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