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PixelToasterApple.mm
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PixelToasterApple.mm
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// Apple MacOS X Platform
// Copyright © 2004-2007 Glenn Fiedler
// Part of the PixelToaster Framebuffer Library - http://www.pixeltoaster.com
// native Cocoa output implemented by Thorsten Schaaps <[email protected]>
#include "PixelToaster.h"
#include "PixelToasterCommon.h"
#include "PixelToasterConversion.h"
#include "PixelToasterApple.h"
#if !PIXELTOASTER_APPLE_USE_X11
#import <Cocoa/Cocoa.h>
#import <QuartzCore/CIContext.h>
#import <OpenGL/OpenGL.h>
#include <OpenGL/glu.h>
using namespace PixelToaster;
#ifndef PIXELTOASTER_APPLE_ALLOW_ZOOM
// adds Zoom1x, 2x, 3x, 4x to "Window" menu and allows
// resizing the window by dragging the lower right corner
#define PIXELTOASTER_APPLE_ALLOW_ZOOM 1
#endif
// allows PixelToaster to change the screen resolution
// when switching to fullscreen mode (not yet implemented)
#define PIXELTOASTER_APPLE_ALLOW_MODESWITCH 0
#ifndef PIXELTOASTER_APPLE_DEBUG
// enables some debug output, disables fades and
// capturing the mouse cursor
#define PIXELTOASTER_APPLE_DEBUG 0
#endif
#ifndef PIXELTOASTER_APPLE_VBSYNC
// switches sync to vertical blank on/off (0=off, 1=on)
#define PIXELTOASTER_APPLE_VBSYNC 1
#endif
// fade time in seconds
static const double FADE_TIME = 0.5;
// number of steps per fade
static const int FADE_STEPS = 30;
#if PIXELTOASTER_APPLE_DEBUG
#define GL_CHECK_ERROR( cmd ) \
cmd; \
{ GLenum error = glGetError(); \
if( GL_NO_ERROR != error ) \
fprintf( stderr, "%s:%d:: ’%s’ failed with error: '%s'\n", \
__FILE__, __LINE__, #cmd, gluErrorString( error ) ); \
}
#else
#define GL_CHECK_ERROR( cmd ) cmd;
#endif
// to get rid of the unused parameter warning in ObjC methods
#define PARAMETER_UNUSED(x) (void) (x);
#pragma mark -
#pragma mark Objective-C classes
#pragma mark -
@interface PTApplication : NSApplication
{
@private
BOOL messageLoopIsRunning;
}
- (id)init;
// since we never actually call [NSApp run] we need to overwrite -isRunning
- (BOOL)isRunning;
- (void)setIsRunning:(BOOL)isRunning;
- (void)performAbout:(id)sender;
- (void)setupApplicationMenu;
@end
@implementation PTApplication
- (id)init
{
self = [ super init ];
if( self != nil )
{
messageLoopIsRunning = NO;
[ self setDelegate:self ];
}
return self;
}
- (BOOL)isRunning
{
return messageLoopIsRunning;
}
- (void)setIsRunning:(BOOL)isRunning
{
messageLoopIsRunning = isRunning;
}
// Called on Cmd-Q / Quit menu item
- (NSApplicationTerminateReply)applicationShouldTerminate:(NSApplication *)sender
{
PARAMETER_UNUSED(sender)
// try to close all windows..
NSArray* windows = [ self windows ];
NSEnumerator* enumerator = [ windows objectEnumerator ];
NSWindow* window;
while( (window = [ enumerator nextObject ]) != nil )
{
[ window performClose:nil ];
}
// if no windows are left open, we allow the application to terminate
if( [ [ self windows ] count ] == 0 )
{
[ self setIsRunning: NO ];
return NSTerminateNow;
}
else
return NSTerminateCancel;
}
// a small custom about box
- (void)performAbout:(id)sender
{
PARAMETER_UNUSED(sender)
NSString* versionString = [ NSString stringWithFormat:@"using PixelToaster v%.1f", PIXELTOASTER_VERSION ];
NSAttributedString* creditString = [ [ [ NSAttributedString alloc ] initWithString:versionString ] autorelease ];
NSString* copyRightString = [ NSString stringWithCString: "Copyright \xc2\xa9 2004-2007 Glenn Fiedler\n"
"Mac OS X implementation by Thorsten Schaaps"
encoding: NSUTF8StringEncoding ];
NSDictionary *dict = [ NSDictionary dictionaryWithObjectsAndKeys: creditString, @"Credits",
copyRightString, @"Copyright",
nil ];
[ NSApp orderFrontStandardAboutPanelWithOptions: dict ];
}
// Set up a menu bar, so the PixelToaster application looks a bit more "native"
// Besides the well known apple menu there is only a "Window" menu added.
// This only gets called when we create the NSApp instance, so if PixelToaster
// is used from a true Cocoa context, this should not interfere...
- (void)setupApplicationMenu
{
NSString* applicationName = [ [ NSProcessInfo processInfo ] processName ];
NSMenu* mainMenu = [ [ NSMenu alloc] initWithTitle: @"MainMenu" ];
// Setup Application menu.. this needs a hack (see below)
{
// the title of the menu and item don't matter, they will be replaced by the processname anyway
NSMenu* appMenu = [ [ NSMenu alloc ] initWithTitle: @"AppleMenu" ];
// "About "applicationName
[ appMenu addItemWithTitle: [ @"About " stringByAppendingString: applicationName ]
action: @selector(performAbout:)
keyEquivalent: @"" ];
// ---
[ appMenu addItem: [ NSMenuItem separatorItem ] ];
// Preferences TODO: nothing implemented yet, we could let the user choose a code path
// or an initial screen here...
[ appMenu addItemWithTitle: @"Preferences"
action: @selector(showPreferences:)
keyEquivalent: @","];
// ---
[ appMenu addItem: [ NSMenuItem separatorItem ] ];
// Services
NSMenuItem* servicesItem = [ appMenu addItemWithTitle: @"Services"
action: nil
keyEquivalent: @"" ];
NSMenu* servicesMenu = [ [ NSMenu alloc ] initWithTitle: @"" ];
[ servicesItem setSubmenu: servicesMenu ];
[ NSApp setServicesMenu: servicesMenu ];
[ servicesMenu release ];
// ---
[ appMenu addItem: [ NSMenuItem separatorItem ] ];
// Hide Application
[ appMenu addItemWithTitle: [ @"Hide " stringByAppendingString: applicationName ]
action: @selector( hide: )
keyEquivalent: @"h" ];
// Hide Others
NSMenuItem* hideOthersItem = [ appMenu addItemWithTitle: @"Hide Others"
action: @selector( hideOtherApplications: )
keyEquivalent: @"h" ];
[ hideOthersItem setKeyEquivalentModifierMask: ( NSAlternateKeyMask | NSCommandKeyMask ) ];
// Show All
[ appMenu addItemWithTitle: @"Show All"
action: @selector( unhideAllApplications: )
keyEquivalent: @"" ];
// ---
[ appMenu addItem: [ NSMenuItem separatorItem ] ];
// Quit <applicationName>
[ appMenu addItemWithTitle:[ @"Quit " stringByAppendingString: applicationName ]
action: @selector(terminate:)
keyEquivalent: @"q" ];
// setAppleMenu is private since Mac OS X 10.4 Tiger, but it still seems to be available
// (and does work) in 10.5 Leopard.
if( [ NSApp respondsToSelector: @selector( setAppleMenu: ) ] )
{
[ NSApp performSelector: @selector( setAppleMenu: ) withObject: appMenu ];
}
NSMenuItem* appItem = [ [ NSMenuItem alloc] initWithTitle: @"AppMenuItem"
action: nil
keyEquivalent: @"" ];
[ appItem setSubmenu: appMenu ];
[ mainMenu addItem: appItem ];
[ appItem release ];
[ appMenu release ];
}
// Setup "Window" menu
{
NSMenu* windowMenu = [ [ NSMenu alloc] initWithTitle: @"Window" ];
// Close Window
[ windowMenu addItemWithTitle: @"Close Window"
action: @selector( performClose: )
keyEquivalent: @"w" ];
// ---
[ windowMenu addItem: [ NSMenuItem separatorItem ] ];
// Minimize
[ windowMenu addItemWithTitle: @"Minimize"
action: @selector( performMiniaturize: )
keyEquivalent: @"m" ];
#if PIXELTOASTER_APPLE_ALLOW_ZOOM
// Zoom
[ windowMenu addItemWithTitle: @"Zoom"
action: @selector( performZoom: )
keyEquivalent: @"" ];
#endif
// ---
[ windowMenu addItem: [ NSMenuItem separatorItem ] ];
// Toggle Fullscreen
[ windowMenu addItemWithTitle: @"Toggle Fullscreen"
action: @selector( menuToggleFullscreen: )
keyEquivalent: @"F" ];
#if PIXELTOASTER_APPLE_ALLOW_ZOOM
// ---
[ windowMenu addItem: [ NSMenuItem separatorItem ] ];
// 1 x
NSMenuItem* zoomItem;
zoomItem = [ windowMenu addItemWithTitle: @"1 x"
action: @selector( zoomX: )
keyEquivalent: @"1" ];
[ zoomItem setTag:1 ];
// 2 x
zoomItem = [ windowMenu addItemWithTitle: @"2 x"
action: @selector( zoomX: )
keyEquivalent: @"2" ];
[ zoomItem setTag:2 ];
// 3 x
zoomItem = [ windowMenu addItemWithTitle: @"3 x"
action: @selector( zoomX: )
keyEquivalent: @"3" ];
[ zoomItem setTag:3 ];
// 4 x
zoomItem = [ windowMenu addItemWithTitle: @"4 x"
action: @selector( zoomX: )
keyEquivalent: @"4" ];
[ zoomItem setTag:4 ];
#endif
// ---
[ windowMenu addItem: [ NSMenuItem separatorItem ] ];
// Bring All to Front
[ windowMenu addItemWithTitle: @"Bring All to Front"
action: @selector( arrangeInFront: )
keyEquivalent: @"" ];
// ---
[ windowMenu addItem: [ NSMenuItem separatorItem ] ];
NSMenuItem* windowItem = [ [ NSMenuItem alloc] initWithTitle: @""
action: nil
keyEquivalent: @"" ];
[ mainMenu addItem: windowItem ];
[ windowItem setSubmenu: windowMenu ];
[ NSApp setWindowsMenu: windowMenu ];
}
[ NSApp setMainMenu: mainMenu ];
[ mainMenu release ];
}
@end
#pragma mark -
@interface PixelToasterView : NSView
{
@private
NSOpenGLContext* _openGLContext;
NSOpenGLPixelFormat* _pixelFormat;
float glVersion;
GLint glMaxRectTextureSize;
GLint glMaxTextureUnits;
GLint glMaxTextureSize;
GLboolean glHasHWFloats;
GLboolean glHasTextureRange;
GLboolean glHasClientStorage;
GLboolean glHasTextureRectangle;
bool glHasFastFloats;
bool glIsIntelIntegratedGraphics;
bool glUseSharedHint;
GLuint glTexture;
// Gamma values used for fade operations
CGGammaValue redMin, redMax, redGamma;
CGGammaValue greenMin, greenMax, greenGamma;
CGGammaValue blueMin, blueMax, blueGamma;
// buffer used to convert floats into before uploading to graphics card
unsigned char* XRGB8888_buffer;
// Listener that should receive any events
Listener* displayListener;
// Display represented by this view
AppleDisplay* display;
// rectangle the pixel buffers are copied/stretched to,
// usually the whole window content, but may have offsets in
// fullscreen mode (e.g. for letterbox or square formats)
NSRect fillRect;
BOOL isFullscreen;
// screen ID that is used for output
CGDirectDisplayID displayID;
}
+ (NSOpenGLPixelFormat*)defaultPixelFormatForFullscreen:(BOOL)fullscreen displayID:(CGDirectDisplayID)displayID;
+ (NSOpenGLPixelFormat*)defaultPixelFormat;
- (id)initWithFrame:(NSRect)frameRect pixelFormat:(NSOpenGLPixelFormat*)format display:(AppleDisplay*)theDisplay;
- (void)setOpenGLContext:(NSOpenGLContext*)context;
- (NSOpenGLContext*)openGLContext;
- (void)clearGLContext;
- (void)updateGLInfo;
- (void)releaseTexture;
- (void)prepareTexture:(const GLvoid*)textureData;
- (void)prepareOpenGL;
- (void)update;
- (void)reshape;
- (void)setPixelFormat:(NSOpenGLPixelFormat*) pixelFormat;
- (NSOpenGLPixelFormat*)pixelFormat;
- (void)setListener:(Listener*)listener;
- (Listener*)listener;
// no setter for "display", as this is set once in -init
- (AppleDisplay*)display;
- (CGDirectDisplayID)displayID;
- (void)setFillRect:(NSRect)newFillRect;
- (NSRect)fillRect;
-(void)hideCursor;
-(void)unhideCursor;
-(void)fadeInDisplay;
-(void)fadeOutDisplay;
- (void)clear;
- (void)copyTrueColorPixelsUsingOpenGL:(const TrueColorPixel*)trueColorPixels
floatingPointPixels:(const FloatingPointPixel*)floatingPointPixels
dirtyRect:(const Rectangle*)dirtyBox;
- (BOOL)setFullscreen:(BOOL)fullscreen;
- (void)menuToggleFullscreen:(id)sender;
- (void)zoomX:(id)sender;
@end
@implementation PixelToasterView
+ (NSOpenGLPixelFormat*)defaultPixelFormat
{
return [ self defaultPixelFormatForFullscreen:NO displayID:CGMainDisplayID()];
}
+ (NSOpenGLPixelFormat*)defaultPixelFormatForFullscreen:(BOOL)fullscreen displayID:(CGDirectDisplayID)displayID
{
NSOpenGLPixelFormat* pixelFormat = nil;
NSOpenGLPixelFormatAttribute attributes[20];
int at_index = 0;
attributes[ at_index++ ] = NSOpenGLPFADoubleBuffer;
attributes[ at_index++ ] = NSOpenGLPFAAccelerated;
//attributes[ at_index++ ] = NSOpenGLPFAColorFloat;
attributes[ at_index++ ] = NSOpenGLPFAColorSize;
attributes[ at_index++ ] = (NSOpenGLPixelFormatAttribute)24;
attributes[ at_index++ ] = NSOpenGLPFAScreenMask;
attributes[ at_index++ ] = (NSOpenGLPixelFormatAttribute)CGDisplayIDToOpenGLDisplayMask( displayID );
if( ! fullscreen )
{
attributes[ at_index++ ] = NSOpenGLPFABackingStore;
attributes[ at_index++ ] = NSOpenGLPFANoRecovery;
}
else
{ // Fullscreen
attributes[ at_index++ ] = NSOpenGLPFAFullScreen;
}
attributes[ at_index ] = (NSOpenGLPixelFormatAttribute)0;
pixelFormat = [ [ NSOpenGLPixelFormat alloc ] initWithAttributes:attributes ];
return [ pixelFormat autorelease ];
}
- (void) surfaceNeedsUpdate:(NSNotification*)notification
{
PARAMETER_UNUSED(notification)
[ self update ];
}
- (id)initWithFrame:(NSRect)frameRect pixelFormat:(NSOpenGLPixelFormat*)format display:(AppleDisplay*)theDisplay
{
self = [super initWithFrame:frameRect];
display = theDisplay;
displayID = CGMainDisplayID();
glTexture = 0;
if (self != nil)
{
_pixelFormat = [ format retain ];
[ [ NSNotificationCenter defaultCenter] addObserver: self
selector: @selector( surfaceNeedsUpdate: )
name: NSViewGlobalFrameDidChangeNotification
object: self ];
}
return self;
}
- (void)releaseTexture
{
if( XRGB8888_buffer != 0 )
{
free( XRGB8888_buffer );
XRGB8888_buffer = 0;
}
if( glTexture > 0 )
{
glDeleteTextures( 1, &glTexture );
glTexture = 0;
}
}
- (void)dealloc
{
[ [ NSNotificationCenter defaultCenter ] removeObserver: self
name: NSViewGlobalFrameDidChangeNotification
object: self ];
[ self releaseTexture ];
[ self clearGLContext ];
[ _pixelFormat release ];
[ super dealloc ];
}
- (void)setPixelFormat:(NSOpenGLPixelFormat*)pixelFormat
{
[ _pixelFormat release ];
_pixelFormat = [pixelFormat retain];
}
- (NSOpenGLPixelFormat*)pixelFormat
{
return _pixelFormat;
}
- (void)setOpenGLContext:(NSOpenGLContext*)context
{
[ self clearGLContext ];
_openGLContext = [ context retain ];
}
- (NSOpenGLContext*)openGLContext
{
// create a context if none exists
if( _openGLContext == nil )
{
[ self updateGLInfo ];
if( _pixelFormat == nil )
{
[ self setPixelFormat: [ [ self class ] defaultPixelFormatForFullscreen:isFullscreen displayID:displayID ] ];
}
_openGLContext = [ [ NSOpenGLContext alloc ] initWithFormat:_pixelFormat shareContext:nil ];
[ _openGLContext makeCurrentContext ];
[ self prepareOpenGL ];
}
if( ( _openGLContext == nil ) || ( _pixelFormat == nil ) )
{
return nil;
}
return _openGLContext;
}
- (void)clearGLContext
{
if( _openGLContext != nil )
{
[ self releaseTexture ];
if( [ _openGLContext view ] == self )
{
[ _openGLContext clearDrawable ];
}
[ _openGLContext release ];
_openGLContext = nil;
}
// release pixel format too
[ self setPixelFormat:nil ];
}
-(void)updateGLInfo
{
const GLubyte *glVersionString, *glExtensions, *glRendererString;
if( displayID == 0 )
displayID = CGMainDisplayID();
CGOpenGLDisplayMask displayMask = CGDisplayIDToOpenGLDisplayMask( displayID );
// Check capabilities of display represented by display mask
CGLPixelFormatAttribute attribs[] = { kCGLPFADisplayMask, (CGLPixelFormatAttribute)displayMask,
(CGLPixelFormatAttribute)0 };
CGLPixelFormatObj pixelFormat = NULL;
GLint numPixelFormats = 0;
CGLContextObj cglContext = 0;
CGLContextObj curr_ctx = CGLGetCurrentContext();
CGLChoosePixelFormat( attribs, &pixelFormat, &numPixelFormats );
if( pixelFormat )
{
CGLCreateContext( pixelFormat, NULL, &cglContext );
CGLDestroyPixelFormat( pixelFormat );
CGLSetCurrentContext( cglContext );
if( cglContext )
{
// Check for capabilities and functionality
glVersionString = glGetString( GL_VERSION );
glExtensions = glGetString( GL_EXTENSIONS );
glRendererString = glGetString( GL_RENDERER );
sscanf( (char*)glVersionString, "%f", &glVersion );
glGetIntegerv( GL_MAX_TEXTURE_UNITS, &glMaxTextureUnits );
glGetIntegerv( GL_MAX_TEXTURE_SIZE, &glMaxTextureSize );
glHasHWFloats = gluCheckExtension( (const GLubyte*)"GL_APPLE_float_pixels", glExtensions );
glHasTextureRange = gluCheckExtension( (const GLubyte*)"GL_APPLE_texture_range", glExtensions );
glHasClientStorage = gluCheckExtension( (const GLubyte*)"GL_APPLE_client_storage", glExtensions );
glHasTextureRectangle = gluCheckExtension( (const GLubyte*)"GL_EXT_texture_rectangle", glExtensions );
// on my iMac handing floats directly to the GPU can keep up with
// PixelToaster's conversion, but on all other tested machines it
// absolutely destroys performance. We will need this later for
// PixelToaster's ToneMapping extension, but for now we leave it disabled
glHasFastFloats = false; // = glHasHWFloats
// the integrated graphics chipsets I could test on were slower with
// client storage, so we set a flag for this code path...
glIsIntelIntegratedGraphics = ( NULL != strstr((const char*)glRendererString, "Intel") );
// generally GL_STORAGE_CACHED_APPLE seems to get the higher performance,
// but at least on the new iMacs (ATI HD 2600 Pro in my case)
// GL_STORAGE_SHARED_APPLE is a lot faster for TrueColor
glUseSharedHint = ( NULL != strstr((const char*)glRendererString, "Radeon HD 2600" ) );
if( glHasTextureRectangle )
glGetIntegerv (GL_MAX_RECTANGLE_TEXTURE_SIZE_EXT, &glMaxRectTextureSize);
else
glMaxRectTextureSize = 0;
#if PIXELTOASTER_APPLE_DEBUG
const GLubyte* glVendorString = glGetString( GL_VENDOR );
printf( "OpenGL Version: %s\n", glVersionString );
printf( "Vendor: %s\n", glVendorString );
printf( "Renderer: %s\n", glRendererString );
printf( "Max Texture Size: %d\n", (int)glMaxTextureSize );
printf( "Max Texture Size: %d\n", (int)glMaxTextureSize );
printf( "Max Rectangle Texture Size: %d\n", (int)glMaxRectTextureSize );
printf( "Texture Rectangle: %savailable\n", glHasTextureRectangle ? "": "not " );
printf( "Float Buffers....: %savailable\n", glHasHWFloats ? "" : "not " );
printf( "Texture Range....: %savailable\n", glHasTextureRange ? "": "not " );
printf( "Client Storage...: %savailable\n", glHasClientStorage ? "" : "not " );
#endif
}
}
CGLDestroyContext( cglContext );
CGLSetCurrentContext( curr_ctx );
}
- (void)prepareTexture:(const GLvoid*)textureData
{
if( glTexture == 0 )
{
const int width = display->width();
const int height = display->height();
bool useFloat = ( display->mode() == Mode::FloatingPoint );
GL_CHECK_ERROR( glGenTextures( 1, &glTexture ) );
GL_CHECK_ERROR( glBindTexture( GL_TEXTURE_RECTANGLE_ARB, glTexture ) );
if( ! glIsIntelIntegratedGraphics )
{
GL_CHECK_ERROR( glPixelStorei(GL_UNPACK_CLIENT_STORAGE_APPLE, GL_TRUE) );
GL_CHECK_ERROR( glTexParameterf( GL_TEXTURE_RECTANGLE_ARB ,GL_TEXTURE_PRIORITY, 0.0f) );
GL_CHECK_ERROR( glTexParameteri( GL_TEXTURE_RECTANGLE_ARB,
GL_TEXTURE_STORAGE_HINT_APPLE,
glUseSharedHint ? GL_STORAGE_SHARED_APPLE
: GL_STORAGE_CACHED_APPLE ) );
}
GL_CHECK_ERROR( glTexParameteri( GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_LINEAR ) );
GL_CHECK_ERROR( glTexParameteri( GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_LINEAR ) );
GL_CHECK_ERROR( glTexParameteri( GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE) );
GL_CHECK_ERROR( glTexParameteri( GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE) );
GL_CHECK_ERROR( glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL) );
GL_CHECK_ERROR( glPixelStorei( GL_UNPACK_ROW_LENGTH, width ) );
GL_CHECK_ERROR( glPixelStorei( GL_UNPACK_ALIGNMENT, 1 ) );
if( ! glHasFastFloats )
{
const int buffer_size = width * height * 4;
if(!XRGB8888_buffer)
XRGB8888_buffer = (unsigned char*)malloc( buffer_size );
if( useFloat )
{
textureData = XRGB8888_buffer;
useFloat = false;
}
}
if( glHasTextureRange )
{
GL_CHECK_ERROR( glTextureRangeAPPLE(GL_TEXTURE_RECTANGLE_ARB,
width * height * (useFloat ? 16 : 4),
textureData) );
}
GL_CHECK_ERROR( glTexImage2D( GL_TEXTURE_RECTANGLE_ARB, 0,
useFloat ? GL_RGB_FLOAT32_APPLE : GL_RGB8,
// HERE: using floats directly is faster on my iMac, but slower on my MBP
// and slower on both compared to PixelToasters software conversion :-P
width, height, 0,
useFloat ? GL_RGBA : GL_BGRA_EXT,
useFloat ? GL_FLOAT : GL_UNSIGNED_INT_8_8_8_8_REV,
textureData ) );
}
}
- (void)prepareOpenGL
{
// prepare OpenGL context (state, texture, etc.)
if( isFullscreen )
{
[ _openGLContext setFullScreen ];
}
glDisable( GL_TEXTURE_2D );
glDisable( GL_BLEND );
glDisable( GL_ALPHA_TEST );
glDisable( GL_DEPTH_TEST );
glDisable( GL_LIGHTING );
GL_CHECK_ERROR( glEnable( GL_TEXTURE_RECTANGLE_ARB ) );
NSOpenGLContext* context = _openGLContext;
// Clear the view, so we get a black background
[ self clear ];
[ context flushBuffer ];
[ self clear ];
[ context flushBuffer ];
// enable/disable sync to VB
GLint swapInterval = PIXELTOASTER_APPLE_VBSYNC;
[ context setValues:&swapInterval forParameter:NSOpenGLCPSwapInterval ];
}
- (void)updateDisplayID
{
NSScreen* screen = [ [ self window ] screen ];
if( nil != screen )
{
NSDictionary* screenInfo = [ screen deviceDescription ];
NSNumber* screenID = [ screenInfo objectForKey:@"NSScreenNumber" ];
displayID = (CGDirectDisplayID)[ screenID longValue ];
}
}
- (void)update
{
if ( [ _openGLContext view ] == self )
{
[ _openGLContext update ];
[ self updateDisplayID ];
}
}
// In NSOpenGLView this is called automatically, for normal NSViews it is not,
// which is why the sample code does not implement it, we just call it
// manually when necessary
- (void)reshape
{
NSOpenGLContext* context = [ self openGLContext ];
[ context makeCurrentContext ];
[ context update ];
NSRect drawableRect = [self convertRect:[self bounds] toView:nil];
// calculate fillRect
double drawableRatio = NSWidth(drawableRect) / NSHeight(drawableRect);
float displayRatio = (float)display->width() / (float)display->height();
if( drawableRatio <= displayRatio )
{
// display is wider than screen, so we leave black borders at top and bottom (letterbox)
double usedHeight = ceilf( NSWidth( drawableRect ) / displayRatio );
[ self setFillRect: NSMakeRect( 0.0f, (NSHeight( drawableRect ) - usedHeight) / 2.0f,
NSWidth( drawableRect ), usedHeight ) ];
}
else
{
// screen is wider than display, leave black borders to the left and right
double usedWidth = ceilf( NSHeight( drawableRect ) * displayRatio );
[ self setFillRect: NSMakeRect( ( NSWidth( drawableRect ) - usedWidth ) / 2.0f, 0.0f,
usedWidth, NSHeight( drawableRect ) ) ];
}
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glViewport( (GLint)fillRect.origin.x, (GLint)fillRect.origin.y,
(GLsizei)fillRect.size.width, (GLsizei)fillRect.size.height);
[ NSOpenGLContext clearCurrentContext ];
}
- (BOOL)setFullscreen:(BOOL)fullscreen
{
if( isFullscreen != fullscreen )
{
[ self clearGLContext ];
if( fullscreen == YES )
{
CGRect rect = CGDisplayBounds( displayID );
[ self setFrame: *(NSRect*)&rect ];
#if !PIXELTOASTER_APPLE_DEBUG
// Capture the display
CGDisplayErr err = CGDisplayCapture( displayID );
if( err != CGDisplayNoErr )
{
fprintf( stderr, "%s:%d:: -setFullscreen: could not capture display!\n", __FILE__, __LINE__);
return NO;
}
#if PIXELTOASTER_APPLE_ALLOW_MODESWITCH
//boolean_t exactMatch;
CFDictionaryRef bestMode = CGDisplayBestModeForParameters( displayID, 32, width(), height(), 0/*&exactMatch*/ );
if( bestMode )
CGDisplaySwitchToMode ( displayID, bestMode );
#endif
#endif
}
else
{
// Release any captured display
CGReleaseAllDisplays();
}
isFullscreen = fullscreen;
[ self reshape ];
if( nil == [ self openGLContext ] )
{
fprintf( stderr, "%s:%d:: -setFullscreen: could not get new context!\n", __FILE__, __LINE__ );
return NO;
}
}
return YES;
}
- (BOOL)fullscreen
{
return isFullscreen;
}
- (CGDirectDisplayID)displayID
{
return displayID;
}
- (void)lockFocus
{
NSOpenGLContext* context = [ self openGLContext ];
[ super lockFocus ];
if( [ context view ] != self)
{
[ context setView:self ];
}
[ context makeCurrentContext ];
}
-(void)viewDidMoveToWindow
{
[ super viewDidMoveToWindow ];
if( [ self window ] == nil )
{
[ _openGLContext clearDrawable ];
}
else
{
[ self updateDisplayID ];
}
}
- (void)setListener:(Listener*)listener
{
displayListener = listener;
}
- (Listener*)listener
{
return displayListener;
}
- (AppleDisplay*)display
{
return display;
}
- (void)setFillRect:(NSRect)newFillRect
{
fillRect = newFillRect;
}
- (NSRect)fillRect
{
return fillRect;
}
- (void)menuToggleFullscreen:(id)sender
{
PARAMETER_UNUSED(sender)
if( display )
display->setShouldToggle();
}
// resize window using a factor taken from the tag of the
// menu item sending this message
- (void)zoomX:(id)sender
{
NSWindow *window = [ self window ];
int zoomFactor = (int)[ sender tag ];
if( ( display != nil ) && ( window != nil ) )
{
NSRect contentRect = [ window contentRectForFrameRect:[ window frame ]];
NSRect newContentRect = contentRect;
newContentRect.size.width = display->width() * zoomFactor;
newContentRect.size.height = display->height() * zoomFactor;
// fix the y origin (else the window will keep it's *lower* right corner)
newContentRect.origin.y -= (newContentRect.size.height - contentRect.size.height);
[ window setFrame:[ window frameRectForContentRect: newContentRect ] display:YES];
[ self reshape ];
}
}
-(void)hideCursor
{
// the parameter to CGDisplayHideCursor is unused,
// so we just pass main display
CGDisplayHideCursor( kCGDirectMainDisplay );
CGAssociateMouseAndMouseCursorPosition( false );
// position the mouse cursor in the middle of the screen
size_t displayWidth = CGDisplayPixelsWide( displayID );
size_t displayHeight = CGDisplayPixelsHigh( displayID );
CGWarpMouseCursorPosition( CGPointMake( displayWidth / 2, displayHeight / 2 ) );
}
-(void)unhideCursor
{
// the parameter to CGDisplayShowCursor is unused,
// so we just pass main display
CGDisplayShowCursor( kCGDirectMainDisplay );
CGAssociateMouseAndMouseCursorPosition( true );
}
-(void)fadeOutDisplay
{
#if !PIXELTOASTER_APPLE_DEBUG
const float FADE_INTERVAL = ( 1.0f / (float) FADE_STEPS );
const useconds_t SLEEP_TIME = (useconds_t)( 1000000 * ( FADE_TIME / (double)FADE_STEPS ) );
float fade;
CGGetDisplayTransferByFormula( displayID,
&redMin, &redMax, &redGamma,
&greenMin, &greenMax, &greenGamma,
&blueMin, &blueMax, &blueGamma );
for( int step = 0; step < FADE_STEPS; ++step )
{
fade = 1.0f - ( step * FADE_INTERVAL );
CGSetDisplayTransferByFormula( displayID,
redMin, fade * redMax, redGamma,
greenMin, fade * greenMax, greenGamma,
blueMin, fade * blueMax, blueGamma );
usleep( SLEEP_TIME );
}
#endif
}
-(void)fadeInDisplay
{
#if !PIXELTOASTER_APPLE_DEBUG
const float FADE_INTERVAL = ( 1.0f / (float) FADE_STEPS );
const useconds_t SLEEP_TIME = (useconds_t)( 1000000 * ( FADE_TIME / (double)FADE_STEPS ) );
float fade;
for( int step = 0; step < FADE_STEPS; ++step )
{
fade = step * FADE_INTERVAL;
CGSetDisplayTransferByFormula( displayID,
redMin, fade * redMax, redGamma,
greenMin, fade * greenMax, greenGamma,
blueMin, fade * blueMax, blueGamma);
usleep( SLEEP_TIME );
}
#endif
CGDisplayRestoreColorSyncSettings();
}
-(void)clear
{
glClearColor(0, 0, 0, 0);
glClear(GL_COLOR_BUFFER_BIT);
glFlush();
}
-(void)blitOpenGLTexture
{
if( glTexture == 0 )
return;