nkeynes@964: /**
nkeynes@964:  * $Id$
nkeynes@964:  *
nkeynes@964:  * Cocoa (NSOpenGL) video driver
nkeynes@964:  *
nkeynes@964:  * Copyright (c) 2005 Nathan Keynes.
nkeynes@964:  *
nkeynes@964:  * This program is free software; you can redistribute it and/or modify
nkeynes@964:  * it under the terms of the GNU General Public License as published by
nkeynes@964:  * the Free Software Foundation; either version 2 of the License, or
nkeynes@964:  * (at your option) any later version.
nkeynes@964:  *
nkeynes@964:  * This program is distributed in the hope that it will be useful,
nkeynes@964:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
nkeynes@964:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
nkeynes@964:  * GNU General Public License for more details.
nkeynes@964:  */
nkeynes@964: 
nkeynes@964: #include <AppKit/NSOpenGL.h>
nkeynes@964: #include <Foundation/NSAutoreleasePool.h>
nkeynes@964: #include "drivers/video_nsgl.h"
nkeynes@964: #include "drivers/video_gl.h"
nkeynes@964: #include "pvr2/glutil.h"
nkeynes@964: 
nkeynes@964: static NSOpenGLContext *nsgl_context = nil;
nkeynes@964: 
nkeynes@964: gboolean video_nsgl_init_driver( NSView *view, display_driver_t driver )
nkeynes@964: {
nkeynes@964:     NSAutoreleasePool *pool = [NSAutoreleasePool new];
nkeynes@964:     NSOpenGLPixelFormatAttribute attributes[] = {
nkeynes@964:             NSOpenGLPFAWindow,
nkeynes@964:             // NSOpenGLPFADoubleBuffer,
nkeynes@964:             NSOpenGLPFADepthSize, (NSOpenGLPixelFormatAttribute)24,
nkeynes@964:             (NSOpenGLPixelFormatAttribute)nil };
nkeynes@964: 
nkeynes@964:     NSOpenGLPixelFormat *pixelFormat = 
nkeynes@964:         [[[NSOpenGLPixelFormat alloc] initWithAttributes: attributes] autorelease];
nkeynes@964:     nsgl_context = 
nkeynes@964:         [[NSOpenGLContext alloc] initWithFormat: pixelFormat shareContext: nil];
nkeynes@964:     [nsgl_context setView: view];
nkeynes@964:     [nsgl_context makeCurrentContext];
nkeynes@964:     [pool release];
nkeynes@1076:     driver->swap_buffers = video_nsgl_swap_buffers;
nkeynes@1134:     driver->capabilities.has_gl = TRUE;
nkeynes@964:     if( gl_fbo_is_supported() ) {
nkeynes@964:         gl_fbo_init(driver);
nkeynes@964:     } else {
nkeynes@1076:         /* Note there is a 'native' buffer framework, but since all current
nkeynes@1076:          * Apple drivers appear to support FBO, there's not much point in
nkeynes@1076:          * doing the work to support them.
nkeynes@1076:          */
nkeynes@964:         ERROR( "FBO not supported" );
nkeynes@964:         return FALSE;
nkeynes@964:     }
nkeynes@1159:     gl_vbo_init(driver);
nkeynes@964: 
nkeynes@964:     return TRUE;
nkeynes@964: }
nkeynes@964: 
nkeynes@964: void video_nsgl_update()
nkeynes@964: {
nkeynes@964:     if( nsgl_context != nil ) {
nkeynes@964:         [nsgl_context update];
nkeynes@964:     }
nkeynes@964: }
nkeynes@964: 
nkeynes@964: void video_nsgl_make_current()
nkeynes@964: {
nkeynes@964:     if( nsgl_context != nil ) {
nkeynes@964:         [nsgl_context makeCurrentContext];
nkeynes@964:     }
nkeynes@964: }
nkeynes@964: 
nkeynes@964: void video_nsgl_swap_buffers()
nkeynes@964: {
nkeynes@964:     if( nsgl_context != nil ) {
nkeynes@964:         [nsgl_context flushBuffer];
nkeynes@964:     }
nkeynes@964: }
nkeynes@964: 
nkeynes@964: void video_nsgl_shutdown()
nkeynes@964: {
nkeynes@964:     if( nsgl_context != nil ) {
nkeynes@964:         [NSOpenGLContext clearCurrentContext];
nkeynes@964:         [nsgl_context release];
nkeynes@964:         nsgl_context = nil;
nkeynes@964:     }
nkeynes@964: }