--- /dev/null
+///////////////////////////////////////////////////////////////////////////////
+// Name: src/osx/cocoa/glcanvas.mm
+// Purpose: wxGLCanvas, for using OpenGL with wxWidgets under Macintosh
+// Author: Stefan Csomor
+// Modified by:
+// Created: 1998-01-01
+// RCS-ID: $Id: glcanvas.cpp 54129 2008-06-11 19:30:52Z SC $
+// Copyright: (c) Stefan Csomor
+// Licence: wxWindows licence
+///////////////////////////////////////////////////////////////////////////////
+
+// ============================================================================
+// declarations
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// headers
+// ----------------------------------------------------------------------------
+
+#include "wx/wxprec.h"
+
+#if defined(__BORLANDC__)
+ #pragma hdrstop
+#endif
+
+#if wxUSE_GLCANVAS
+
+#include "wx/glcanvas.h"
+
+#ifndef WX_PRECOMP
+ #include "wx/frame.h"
+ #include "wx/log.h"
+ #include "wx/settings.h"
+#endif
+
+#include "wx/osx/private.h"
+
+
+WXGLContext WXGLCreateContext( WXGLPixelFormat pixelFormat, WXGLContext shareContext )
+{
+ WXGLContext context = [[NSOpenGLContext alloc] initWithFormat:pixelFormat shareContext: shareContext];
+ if ( !context )
+ wxFAIL_MSG("NSOpenGLContext creation failed");
+ return context ;
+}
+
+void WXGLDestroyContext( WXGLContext context )
+{
+ if ( context )
+ {
+ [context release];
+ }
+}
+
+void WXGLSwapBuffers( WXGLContext context )
+{
+ [context flushBuffer];
+}
+
+WXGLContext WXGLGetCurrentContext()
+{
+ return [NSOpenGLContext currentContext];
+}
+
+void WXGLDestroyPixelFormat( WXGLPixelFormat pixelFormat )
+{
+ if ( pixelFormat )
+ {
+ [pixelFormat release];
+ }
+}
+
+
+WXGLPixelFormat WXGLChoosePixelFormat(const int *attribList)
+{
+ NSOpenGLPixelFormatAttribute data[512];
+ const NSOpenGLPixelFormatAttribute defaultAttribs[] =
+ {
+ NSOpenGLPFADoubleBuffer,
+ (NSOpenGLPixelFormatAttribute)nil
+ };
+
+ const NSOpenGLPixelFormatAttribute *attribs;
+ if ( !attribList )
+ {
+ attribs = defaultAttribs;
+ }
+ else
+ {
+ unsigned p = 0;
+ data[p++] = NSOpenGLPFAMinimumPolicy; // make _SIZE tags behave more like GLX
+
+ for ( unsigned arg = 0; attribList[arg] !=0 && p < WXSIZEOF(data); )
+ {
+ switch ( attribList[arg++] )
+ {
+ case WX_GL_RGBA:
+ //data[p++] = AGL_RGBA;
+ break;
+
+ case WX_GL_BUFFER_SIZE:
+ //data[p++] = AGL_BUFFER_SIZE;
+ //data[p++] = attribList[arg++];
+ break;
+
+ case WX_GL_LEVEL:
+ //data[p++]=AGL_LEVEL;
+ //data[p++]=attribList[arg++];
+ break;
+
+ case WX_GL_DOUBLEBUFFER:
+ data[p++] = NSOpenGLPFADoubleBuffer;
+ break;
+
+ case WX_GL_STEREO:
+ data[p++] = NSOpenGLPFAStereo;
+ break;
+
+ case WX_GL_AUX_BUFFERS:
+ data[p++] = NSOpenGLPFAAuxBuffers;
+ data[p++] = attribList[arg++];
+ break;
+
+ case WX_GL_MIN_RED:
+ data[p++] = NSOpenGLPFAColorSize;
+ data[p++] = attribList[arg++];
+ break;
+
+ case WX_GL_MIN_GREEN:
+ //data[p++] = AGL_GREEN_SIZE;
+ //data[p++] = attribList[arg++];
+ break;
+
+ case WX_GL_MIN_BLUE:
+ //data[p++] = AGL_BLUE_SIZE;
+ //data[p++] = attribList[arg++];
+ break;
+
+ case WX_GL_MIN_ALPHA:
+ data[p++] = NSOpenGLPFAAlphaSize;
+ data[p++] = attribList[arg++];
+ break;
+
+ case WX_GL_DEPTH_SIZE:
+ data[p++] = NSOpenGLPFADepthSize;
+ data[p++] = attribList[arg++];
+ break;
+
+ case WX_GL_STENCIL_SIZE:
+ data[p++] = NSOpenGLPFAStencilSize;
+ data[p++] = attribList[arg++];
+ break;
+
+ case WX_GL_MIN_ACCUM_RED:
+ data[p++] = NSOpenGLPFAAccumSize;
+ data[p++] = attribList[arg++];
+ break;
+
+ case WX_GL_MIN_ACCUM_GREEN:
+ //data[p++] = AGL_ACCUM_GREEN_SIZE;
+ //data[p++] = attribList[arg++];
+ break;
+
+ case WX_GL_MIN_ACCUM_BLUE:
+ //data[p++] = AGL_ACCUM_BLUE_SIZE;
+ //data[p++] = attribList[arg++];
+ break;
+
+ case WX_GL_MIN_ACCUM_ALPHA:
+ //data[p++] = AGL_ACCUM_ALPHA_SIZE;
+ //data[p++] = attribList[arg++];
+ break;
+
+ case WX_GL_SAMPLE_BUFFERS:
+ if ( !wxGLCanvas::IsAGLMultiSampleAvailable() )
+ {
+ if ( !attribList[arg++] )
+ break;
+
+ return false;
+ }
+
+ data[p++] = NSOpenGLPFASampleBuffers;
+ if ( (data[p++] = attribList[arg++]) == true )
+ {
+ // don't use software fallback
+ data[p++] = NSOpenGLPFANoRecovery;
+ }
+ break;
+
+ case WX_GL_SAMPLES:
+ if ( !wxGLCanvas::IsAGLMultiSampleAvailable() )
+ {
+ if ( !attribList[arg++] )
+ break;
+
+ return false;
+ }
+
+ data[p++] = NSOpenGLPFASamples;
+ data[p++] = attribList[arg++];
+ break;
+ }
+ }
+
+ data[p] = (NSOpenGLPixelFormatAttribute)nil;
+
+ attribs = data;
+ }
+
+ return [[NSOpenGLPixelFormat alloc] initWithAttributes:attribs];
+}
+
+bool wxGLContext::SetCurrent(const wxGLCanvas& win) const
+{
+ if ( !m_glContext )
+ return false;
+
+ [m_glContext setView: win.GetHandle() ];
+
+ [m_glContext makeCurrentContext];
+
+ return true;
+}
+
+@interface wxNSCustomOpenGLView : NSView
+{
+ wxWidgetImpl* impl;
+ NSOpenGLContext* context;
+}
+
+- (id)initWithFrame:(NSRect)frame;
+- (void)setImplementation: (wxWidgetImpl *) theImplementation;
+- (wxWidgetImpl*) implementation;
+- (BOOL) isFlipped;
+
+@end
+
+@implementation wxNSCustomOpenGLView
+
+- (id)initWithFrame:(NSRect)frame
+{
+ [super initWithFrame:frame];
+ impl = NULL;
+ return self;
+}
+
+- (void)setImplementation: (wxWidgetImpl *) theImplementation
+{
+ impl = theImplementation;
+}
+
+- (wxWidgetImpl*) implementation
+{
+ return impl;
+}
+
+- (BOOL) isFlipped
+{
+ return YES;
+}
+
+- (BOOL)isOpaque
+{
+ return YES;
+}
+
+@end
+
+bool wxGLCanvas::Create(wxWindow *parent,
+ wxWindowID id,
+ const wxPoint& pos,
+ const wxSize& size,
+ long style,
+ const wxString& name,
+ const int *attribList,
+ const wxPalette& WXUNUSED(palette))
+{
+ m_glFormat = WXGLChoosePixelFormat(attribList);
+ if ( !m_glFormat )
+ return false;
+
+ m_macIsUserPane = false ;
+
+ if ( !wxWindow::Create(parent, id, pos, size, style, name) )
+ return false;
+
+
+ NSView* sv = (parent->GetHandle() );
+
+ NSRect r = wxOSXGetFrameForControl( this, pos , size ) ;
+ wxNSCustomOpenGLView* v = [[wxNSCustomOpenGLView alloc] initWithFrame:r];
+ [sv addSubview:v];
+ m_peer = new wxWidgetCocoaImpl( this, v );
+ [v setImplementation:m_peer];
+
+ MacPostControlCreate(pos, size) ;
+
+ return true;
+}
+
+#endif // wxUSE_GLCANVAS
projects / wxWidgets.git / blobdiff