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GetMonitorAspectRatio.

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This commit is contained in:
Steve Checkoway
2006-02-07 08:08:37 +00:00
parent 2a6d75848f
commit 2ea7e8c897
1 changed files with 38 additions and 8 deletions
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stepmania/src/arch/LowLevelWindow/LowLevelWindow_Cocoa.mm
+38 -8
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@@ -12,6 +12,12 @@
#import <OpenGL/gl.h>
#import <mach-o/dyld.h>
// Bad header!
extern "C" {
#include <IOKit/graphics/IOGraphicsLib.h>
}
static const unsigned int g_iStyleMask = NSTitledWindowMask | NSClosableWindowMask |
NSMiniaturizableWindowMask | NSResizableWindowMask;
static bool g_bResized;
@@ -364,8 +370,9 @@ void LowLevelWindow_Cocoa::SetActualParamsFromMode( CFDictionaryRef mode )
{
SInt32 rate;
if( CFNumberGetValue( (CFNumberRef)CFDictionaryGetValue(mode, CFSTR("RefreshRate")), kCFNumberSInt32Type, &rate) )
m_CurrentParams.rate = rate;
if( !CFNumberGetValue( (CFNumberRef)CFDictionaryGetValue(mode, CFSTR("RefreshRate")), kCFNumberSInt32Type, &rate) )
rate = 60;
m_CurrentParams.rate = rate;
if( !m_CurrentParams.windowed )
{
@@ -387,6 +394,20 @@ void LowLevelWindow_Cocoa::SetActualParamsFromMode( CFDictionaryRef mode )
m_CurrentParams.bpp = CGDisplayBitsPerPixel( kCGDirectMainDisplay );
}
static int GetIntValue( CFTypeRef r )
{
int ret;
if( !r || CFGetTypeID(r) != CFNumberGetTypeID() || !CFNumberGetValue(CFNumberRef(r), kCFNumberIntType, &ret) )
return 0;
return ret;
}
static bool GetBoolValue( CFTypeRef r )
{
return r && CFGetTypeID( r ) == CFBooleanGetTypeID() && CFBooleanGetValue( CFBooleanRef(r) );
}
void LowLevelWindow_Cocoa::GetDisplayResolutions( DisplayResolutions &dr ) const
{
CFArrayRef modes = CGDisplayAvailableModes( kCGDirectMainDisplay );
@@ -396,15 +417,15 @@ void LowLevelWindow_Cocoa::GetDisplayResolutions( DisplayResolutions &dr ) const
for( CFIndex i = 0; i < count; ++i )
{
CFDictionaryRef dict = (CFDictionaryRef)CFArrayGetValueAtIndex( modes, i );
CFNumberRef num = (CFNumberRef)CFDictionaryGetValue( dict, CFSTR("Width") );
SInt32 width, height;
int width = GetIntValue( CFDictionaryGetValue(dict, kCGDisplayWidth) );
int height = GetIntValue( CFDictionaryGetValue(dict, kCGDisplayHeight) );
CFTypeRef safe = CFDictionaryGetValue( dict, kCGDisplayModeIsSafeForHardware );
//bool stretched = GetBoolValue( CFDictionaryGetValue(dict, kCGDisplayModeIsStretched) );
if( !num || !CFNumberGetValue(num, kCFNumberSInt32Type, &width) )
if( !width || !height )
continue;
num = (CFNumberRef)CFDictionaryGetValue( dict, CFSTR("Height") );
if( !num || !CFNumberGetValue(num, kCFNumberSInt32Type, &height) )
if( safe && !GetBoolValue( safe ) )
continue;
DisplayResolution res = { width, height };
dr.s.insert( res );
}
@@ -413,6 +434,15 @@ void LowLevelWindow_Cocoa::GetDisplayResolutions( DisplayResolutions &dr ) const
float LowLevelWindow_Cocoa::GetMonitorAspectRatio() const
{
io_connect_t displayPort = CGDisplayIOServicePort( CGMainDisplayID() );
CFDictionaryRef dict = IODisplayCreateInfoDictionary( displayPort, 0 );
int width = GetIntValue( CFDictionaryGetValue(dict, CFSTR(kDisplayHorizontalImageSize)) );
int height = GetIntValue( CFDictionaryGetValue(dict, CFSTR(kDisplayVerticalImageSize)) );
CFRelease( dict );
if( width && height )
return float(width)/height;
return 4/3.f;
}