lxdream.org :: lxdream/src/drivers/video

filename	src/drivers/video_nsgl.m
changeset	1159:580436b01b6c
prev	1134:f502f3d32f90
next	1251:b8ab59d39756
author	nkeynes
date	Wed Feb 15 17:54:51 2012 +1000 (12 years ago)
permissions	-rw-r--r--
last change	Use GL_TEXTURE_2D instead of GL_TEXTURE_RECTANGLE_ARB for frame buffers, for systems that don't provide the latter (and there's not really much difference anyway). Add macro wrangling for GL_DEPTH24_STENCIL8 format

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     1 /**

     2  * $Id$

     3  *

     4  * Cocoa (NSOpenGL) video driver

     5  *

     6  * Copyright (c) 2005 Nathan Keynes.

     7  *

     8  * This program is free software; you can redistribute it and/or modify

     9  * it under the terms of the GNU General Public License as published by

    10  * the Free Software Foundation; either version 2 of the License, or

    11  * (at your option) any later version.

    12  *

    13  * This program is distributed in the hope that it will be useful,

    14  * but WITHOUT ANY WARRANTY; without even the implied warranty of

    15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

    16  * GNU General Public License for more details.

    17  */

    19 #include <AppKit/NSOpenGL.h>

    20 #include <Foundation/NSAutoreleasePool.h>

    21 #include "drivers/video_nsgl.h"

    22 #include "drivers/video_gl.h"

    23 #include "pvr2/glutil.h"

    25 static NSOpenGLContext *nsgl_context = nil;

    27 gboolean video_nsgl_init_driver( NSView *view, display_driver_t driver )

    28 {

    29     NSAutoreleasePool *pool = [NSAutoreleasePool new];

    30     NSOpenGLPixelFormatAttribute attributes[] = {

    31             NSOpenGLPFAWindow,

    32             // NSOpenGLPFADoubleBuffer,

    33             NSOpenGLPFADepthSize, (NSOpenGLPixelFormatAttribute)24,

    34             (NSOpenGLPixelFormatAttribute)nil };

    36     NSOpenGLPixelFormat *pixelFormat =

    37         [[[NSOpenGLPixelFormat alloc] initWithAttributes: attributes] autorelease];

    38     nsgl_context =

    39         [[NSOpenGLContext alloc] initWithFormat: pixelFormat shareContext: nil];

    40     [nsgl_context setView: view];

    41     [nsgl_context makeCurrentContext];

    42     [pool release];

    43     driver->swap_buffers = video_nsgl_swap_buffers;

    44     driver->capabilities.has_gl = TRUE;

    45     if( gl_fbo_is_supported() ) {

    46         gl_fbo_init(driver);

    47     } else {

    48         /* Note there is a 'native' buffer framework, but since all current

    49          * Apple drivers appear to support FBO, there's not much point in

    50          * doing the work to support them.

    51          */

    52         ERROR( "FBO not supported" );

    53         return FALSE;

    54     }

    55     gl_vbo_init(driver);

    57     return TRUE;

    58 }

    60 void video_nsgl_update()

    61 {

    62     if( nsgl_context != nil ) {

    63         [nsgl_context update];

    64     }

    65 }

    67 void video_nsgl_make_current()

    68 {

    69     if( nsgl_context != nil ) {

    70         [nsgl_context makeCurrentContext];

    71     }

    72 }

    74 void video_nsgl_swap_buffers()

    75 {

    76     if( nsgl_context != nil ) {

    77         [nsgl_context flushBuffer];

    78     }

    79 }

    81 void video_nsgl_shutdown()

    82 {

    83     if( nsgl_context != nil ) {

    84         [NSOpenGLContext clearCurrentContext];

    85         [nsgl_context release];

    86         nsgl_context = nil;

    87     }

    88 }