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60fcb3622e
* Source/NSOpenGLPixelFormat.m: NSOpenGLPixelFormat directly
* implements
initWithCoder so that it may marshall the pixel attributes prior
to
initWithAttributes:. Change the getValues:... method to take an
int argument instead of long. GLint is mapped to int on most
systems.
* Source/NSOpenGLContext.m: Use the format decoding to decode an
* OpenGL context.
Patch by Clint Smullen <daemonae>.
* Source/GSLayoutManager.m: Small cleanup in glyph code.
git-svn-id: svn+ssh://svn.gna.org/svn/gnustep/libs/gui/trunk@35923 72102866-910b-0410-8b05-ffd578937521
115 lines
2.8 KiB
Objective-C
115 lines
2.8 KiB
Objective-C
/** <title>NSOpenGLPixelFormat.m </title>
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<abstract>use to choose the type of GL context</abstract>
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Copyright (C) 1996 Free Software Foundation, Inc.
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Author: Frederic De Jaeger
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Date: 2002
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This file is part of the GNUstep GUI Library.
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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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#import <Foundation/NSString.h>
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#import <Foundation/NSData.h>
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#import <Foundation/NSDebug.h>
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#import "AppKit/NSOpenGL.h"
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#import "GNUstepGUI/GSDisplayServer.h"
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@implementation NSOpenGLPixelFormat
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+ (Class) _classPixelFormat
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{
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Class glPixelFormatClass = [GSCurrentServer() glPixelFormatClass];
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if (glPixelFormatClass == nil)
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{
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NSWarnMLog(@"Backend doesn't have any glPixelFormatClass");
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return nil;
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}
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else
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{
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NSDebugMLLog(@"GLX", @"found a class %@", glPixelFormatClass);
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return glPixelFormatClass;
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}
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}
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+ (id) allocWithZone: (NSZone*) z
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{
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Class c = [self _classPixelFormat];
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if (c)
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return NSAllocateObject(c, 0, z);
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else
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return nil;
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}
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- (void) getValues: (int*)vals
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forAttribute: (NSOpenGLPixelFormatAttribute)attrib
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forVirtualScreen: (int)screen
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{
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[self subclassResponsibility: _cmd];
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}
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- (id) initWithAttributes: (NSOpenGLPixelFormatAttribute*)attribs
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{
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[self subclassResponsibility: _cmd];
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return nil;
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}
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- (int) numberOfVirtualScreens
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{
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[self subclassResponsibility: _cmd];
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return 0;
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}
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- (id) initWithCoder: (NSCoder*)aDecoder
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{
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if ([aDecoder allowsKeyedCoding])
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{
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NSMutableData *attrs = [aDecoder decodeObjectForKey: @"NSPixelAttributes"];
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if (attrs != nil)
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{
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NSOpenGLPixelFormatAttribute *glattrs;
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unsigned char tmp = 0;
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// Ensure that it is zero-terminated
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[attrs appendBytes: &tmp length: sizeof(tmp)];
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// FIXME: Deserialize an integer array
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glattrs = (NSOpenGLPixelFormatAttribute *)[attrs mutableBytes];
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return [self initWithAttributes: glattrs];
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}
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}
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else
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{
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}
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return self;
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}
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- (void) encodeWithCoder: (NSCoder*)aCoder
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{
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[self subclassResponsibility: _cmd];
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}
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@end
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