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Modified source engine (2017) developed by valve and leaked in 2020. Not for commercial purporses
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source-engine/appframework/glmrendererinfo_osx.mm

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//========= Copyright 1996-2009, Valve Corporation, All rights reserved. ============//
//
// Purpose: Defines a group of app systems that all have the same lifetime
// that need to be connected/initialized, etc. in a well-defined order
//
// $Revision: $
// $NoKeywords: $
//=============================================================================//
#include <Cocoa/Cocoa.h>
#include <OpenGL/OpenGL.h>
#include <OpenGL/gl.h>
#include <OpenGL/glext.h>
#include <IOKit/IOKitLib.h>
#undef MIN
#undef MAX
#define DONT_DEFINE_BOOL // Don't define BOOL!
#include "tier0/threadtools.h"
#include "tier0/icommandline.h"
#include "tier1/interface.h"
#include "tier1/strtools.h"
#include "tier1/utllinkedlist.h"
#include "togl/rendermechanism.h"
#include "appframework/ilaunchermgr.h" // gets pulled in from glmgr.h
#include "appframework/iappsystemgroup.h"
#include "inputsystem/ButtonCode.h"
// some helper functions, relocated out of GLM since they are used here
// this one makes a new context
bool GLMDetectSLGU( void );
bool GLMDetectSLGU( void )
{
CGLError cgl_error = (CGLError)0;
bool result = false;
CGLContextObj oldctx = CGLGetCurrentContext();
static CGLPixelFormatAttribute attribs[] =
{
kCGLPFADoubleBuffer,
kCGLPFANoRecovery,
kCGLPFAAccelerated,
kCGLPFADepthSize,
(CGLPixelFormatAttribute)0,
kCGLPFAColorSize,
(CGLPixelFormatAttribute)32,
(CGLPixelFormatAttribute)0 // list term
};
CGLPixelFormatObj pixfmtobj = NULL;
GLint npix;
CGLContextObj ctxobj = NULL;
cgl_error = CGLChoosePixelFormat( attribs, &pixfmtobj, &npix );
if (!cgl_error)
{
// got pixel format, make a context
cgl_error = CGLCreateContext( pixfmtobj, NULL, &ctxobj );
if (!cgl_error)
{
CGLSetCurrentContext( ctxobj );
// now do the test
_CGLContextParameter kCGLCPGCDMPEngine = ((_CGLContextParameter)1314);
GLint dummyval = 0;
cgl_error = CGLGetParameter( CGLGetCurrentContext(), kCGLCPGCDMPEngine, &dummyval );
result = (!cgl_error);
// all done, go back to old context, and destroy the temp one
CGLSetCurrentContext( oldctx );
CGLDestroyContext( ctxobj );
}
// destroy the pixel format obj
CGLDestroyPixelFormat( pixfmtobj );
}
return result;
}
bool GLMDetectScaledResolveMode( uint osComboVersion, bool hasSLGU );
bool GLMDetectScaledResolveMode( uint osComboVersion, bool hasSLGU )
{
bool result = false;
// note this function assumes a current context on the renderer in question
// and that FB blit and SLGU are present..
if (!hasSLGU)
return false;
if (osComboVersion <= 0x000A0604) // we know no one has it before 10.6.5
return false;
// in 10.6.6 and later, just check for the ext string.
char *gl_ext_string = (char*)glGetString(GL_EXTENSIONS);
// avoid crashing due to strstr'ing NULL pointer returned from glGetString
if (!gl_ext_string)
gl_ext_string = "";
result = strstr(gl_ext_string, "GL_EXT_framebuffer_multisample_blit_scaled") != NULL;
if ( !result )
{
// make two FBO's
GLuint fbos[2];
GLuint rbos[2];
int extent = 64;
// make two render buffers
for( int fbi = 0; fbi < 2; fbi++ )
{
glGenFramebuffersEXT( 1, &fbos[fbi] ); CheckGLError( __LINE__ );
glBindFramebufferEXT( fbi ? GL_DRAW_FRAMEBUFFER_EXT : GL_READ_FRAMEBUFFER_EXT , fbos[fbi] ); CheckGLError( __LINE__ );
glGenRenderbuffersEXT( 1, &rbos[fbi] ); CheckGLError( __LINE__ );
glBindRenderbufferEXT( GL_RENDERBUFFER_EXT, rbos[fbi] ); CheckGLError( __LINE__ );
// make it multisampled if 0
if (!fbi)
{
glRenderbufferStorageMultisampleEXT( GL_RENDERBUFFER_EXT, 2, GL_RGBA8, extent,extent ); CheckGLError( __LINE__ );
}
else
{
glRenderbufferStorageEXT( GL_RENDERBUFFER_EXT, GL_RGBA8, extent,extent ); CheckGLError( __LINE__ );
}
// attach it
// #0 gets to be read and multisampled
// #1 gets to be draw and multisampled
glFramebufferRenderbufferEXT( fbi ? GL_DRAW_FRAMEBUFFER_EXT : GL_READ_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_RENDERBUFFER_EXT, rbos[fbi] ); CheckGLError( __LINE__ );
}
// now test
while( glGetError() ) // clear error queue
{
;
}
// now do the dummy blit
glBlitFramebufferEXT( 0,0,extent,extent, 0,0,extent,extent, GL_COLOR_BUFFER_BIT, XGL_SCALED_RESOLVE_FASTEST_EXT );
// type of error we get back lets us know what the outcome is.
// invalid enum error -> unsupported
// no error or invalid op -> supported
GLenum errorcode = (GLenum)glGetError();
switch(errorcode)
{
// expected outcomes.
// positive
case GL_NO_ERROR:
case GL_INVALID_OPERATION:
result = true; // new scaled resolve detected
break;
default:
result = false; // no scaled resolve
break;
}
// unbind and wipe stuff
glBindRenderbufferEXT( GL_RENDERBUFFER_EXT, 0 ); CheckGLError( __LINE__ );
for( int xfbi = 0; xfbi < 2; xfbi++ )
{
// unbind FBO
glBindFramebufferEXT( xfbi ? GL_DRAW_FRAMEBUFFER_EXT : GL_READ_FRAMEBUFFER_EXT , 0 ); CheckGLError( __LINE__ );
// del FBO and RBO
glDeleteFramebuffersEXT( 1, &fbos[xfbi] ); CheckGLError( __LINE__ );
glDeleteRenderbuffersEXT( 1, &rbos[xfbi] ); CheckGLError( __LINE__ );
}
}
return result; // no SLGU, no scaled resolve blit even possible
}
//===============================================================================
GLMRendererInfo::GLMRendererInfo( GLMRendererInfoFields *info )
{
NSAutoreleasePool *tempPool = [[NSAutoreleasePool alloc] init ];
// absorb info obtained so far by caller
m_info = *info;
m_displays = NULL;
// gather more info using a dummy context
unsigned int attribs[] =
{
kCGLPFADoubleBuffer, kCGLPFANoRecovery, kCGLPFAAccelerated,
kCGLPFADepthSize, 0,
kCGLPFAColorSize, 32,
kCGLPFARendererID, info->m_rendererID,
0
};
NSOpenGLPixelFormat *pixFmt = [[NSOpenGLPixelFormat alloc] initWithAttributes:(NSOpenGLPixelFormatAttribute*)attribs];
NSOpenGLContext *nsglCtx = [[NSOpenGLContext alloc] initWithFormat: pixFmt shareContext: NULL ];
[nsglCtx makeCurrentContext];
// run queries.
char *gl_ext_string = (char*)glGetString(GL_EXTENSIONS);
uint vers = m_info.m_osComboVersion;
// avoid crashing due to strstr'ing NULL pointer returned from glGetString
if (!gl_ext_string)
gl_ext_string = "";
// effectively blacklist the renderer if it doesn't actually work; sort it to back of list
if ( !nsglCtx )
{
m_info.m_vidMemory = 1;
m_info.m_texMemory = 1;
}
//-------------------------------------------------------------------
// booleans
//-------------------------------------------------------------------
// gamma writes.
m_info.m_hasGammaWrites = true;
if ( vers < 0x000A0600 ) // pre 10.6.0, no SRGB write - see http://developer.apple.com/graphicsimaging/opengl/capabilities/GLInfo_1058.html
{
m_info.m_hasGammaWrites = false;
}
if (m_info.m_atiR5xx)
{
m_info.m_hasGammaWrites = false; // it just don't, even post 10.6.3
}
// if CLI option for fake SRGB mode is enabled, turn off this cap, act like we do not have EXT FB SRGB
if (CommandLine()->FindParm("-glmenablefakesrgb"))
{
m_info.m_hasGammaWrites = false;
}
// extension string *could* be checked, but on 10.6.3 the ext string is not there, but the func *is*
//-------------------------------------------------------------------
// mixed attach sizes for FBO
m_info.m_hasMixedAttachmentSizes = true;
if ( vers < 0x000A0603 ) // pre 10.6.3, no mixed attach sizes
{
m_info.m_hasMixedAttachmentSizes = false;
}
else
{
if (!strstr(gl_ext_string, "GL_ARB_framebuffer_object"))
{
// ARB_framebuffer_object not available
m_info.m_hasMixedAttachmentSizes = false;
}
}
// also check ext string
//-------------------------------------------------------------------
// BGRA vert attribs
m_info.m_hasBGRA = true;
if ( vers < 0x000A0603 ) // pre 10.6.3, no BGRA attribs
{
m_info.m_hasBGRA = false;
}
else
{
if (!strstr(gl_ext_string, "EXT_vertex_array_bgra"))
{
// EXT_vertex_array_bgra not available
m_info.m_hasBGRA = false;
}
}
//-------------------------------------------------------------------
m_info.m_hasNewFullscreenMode = true;
if ( vers < 0x000A0600 ) // pre 10.6.0, no clever window server full screen mode
{
m_info.m_hasNewFullscreenMode = false;
}
//-------------------------------------------------------------------
m_info.m_hasNativeClipVertexMode = true;
// this one uses a heuristic, and allows overrides in case the heuristic is wrong
// or someone wants to try a beta driver or something.
// known bad combinations get turned off here..
// any ATI hardware...
// TURNED OFF OS CHECK if (m_info.m_osComboVersion <= 0x000A0603)
// still believe to be broken in 10.6.4
{
if (m_info.m_ati)
{
m_info.m_hasNativeClipVertexMode = false;
}
}
// R500, forever..
if (m_info.m_atiR5xx)
{
m_info.m_hasNativeClipVertexMode = false;
}
// if user disabled them
if (CommandLine()->FindParm("-glmdisableclipplanes"))
{
m_info.m_hasNativeClipVertexMode = false;
}
// or maybe enabled them..
if (CommandLine()->FindParm("-glmenableclipplanes"))
{
m_info.m_hasNativeClipVertexMode = true;
}
//-------------------------------------------------------------------
m_info.m_hasOcclusionQuery = true;
if (!strstr(gl_ext_string, "ARB_occlusion_query"))
{
m_info.m_hasOcclusionQuery = false; // you don't got it!
}
//-------------------------------------------------------------------
m_info.m_hasFramebufferBlit = true;
if (!strstr(gl_ext_string, "EXT_framebuffer_blit"))
{
m_info.m_hasFramebufferBlit = false; // you know you don't got it!
}
//-------------------------------------------------------------------
m_info.m_maxAniso = 4; //FIXME needs real query
//-------------------------------------------------------------------
m_info.m_hasBindableUniforms = true;
if (!strstr(gl_ext_string, "EXT_bindable_uniform"))
{
m_info.m_hasBindableUniforms = false;
}
m_info.m_hasBindableUniforms = false; // hardwiring this path to false until we see how to accelerate it properly
//-------------------------------------------------------------------
m_info.m_hasUniformBuffers = true;
if (!strstr(gl_ext_string, "ARB_uniform_buffer"))
{
m_info.m_hasUniformBuffers = false;
}
//-------------------------------------------------------------------
// test for performance pack (10.6.4+)
bool perfPackageDetected = GLMDetectSLGU();
if (perfPackageDetected)
{
m_info.m_hasPerfPackage1 = true;
}
if (CommandLine()->FindParm("-glmenableperfpackage")) // force it on
{
m_info.m_hasPerfPackage1 = true;
}
if (CommandLine()->FindParm("-glmdisableperfpackage")) // force it off
{
m_info.m_hasPerfPackage1 = false;
}
//-------------------------------------------------------------------
// runtime options that aren't negotiable once set
m_info.m_hasDualShaders = CommandLine()->FindParm("-glmdualshaders");
//-------------------------------------------------------------------
// "can'ts "
m_info.m_cantBlitReliably = (m_info.m_osComboVersion < 0x000A0606) && m_info.m_intel; //don't trust FBO blit on Intel before 10.6.6
if (CommandLine()->FindParm("-glmenabletrustblit"))
{
m_info.m_cantBlitReliably = false; // we trust the blit, so set the cant-blit cap to false
}
if (CommandLine()->FindParm("-glmdisabletrustblit"))
{
m_info.m_cantBlitReliably = true; // we do not trust the blit, so set the cant-blit cap to true
}
//m_info.m_cantAttachSRGB = (m_info.m_nv && m_info.m_osComboVersion < 0x000A0600); //NV drivers won't accept SRGB tex on an FBO color target in 10.5.8
//m_info.m_cantAttachSRGB = (m_info.m_ati && m_info.m_osComboVersion < 0x000A0600); //... does ATI have the same problem?
m_info.m_cantAttachSRGB = (m_info.m_osComboVersion < 0x000A0600); // across the board on 10.5.x actually..
// MSAA resolve issues
m_info.m_cantResolveFlipped = false; // initial stance
if (m_info.m_ati)
{
//Jan 2011 - ATI says it's better to do two step blit than to try and resolve upside down
m_info.m_cantResolveFlipped = true;
}
if (m_info.m_nv)
{
// we're going to mark it 'broken' unless perf package 1 (10.6.4+) is present
if (!m_info.m_hasPerfPackage1)
{
m_info.m_cantResolveFlipped = true;
}
}
// this is just the private assessment of whather scaled resolve is available.
// the activation of it will stay tied to the gl_minify_resolve_mode / gl_magnify_resolve_mode convars in glmgr
if (m_info.m_osComboVersion > 0x000A0700 || CommandLine()->FindParm("-gl_enable_scaled_resolve") )
{
bool scaledResolveDetected = GLMDetectScaledResolveMode( m_info.m_osComboVersion, m_info.m_hasPerfPackage1 );
m_info.m_cantResolveScaled = !scaledResolveDetected;
}
else
{
m_info.m_cantResolveScaled = true;
}
// and you can force it to be "available" if you really want to..
if ( CommandLine()->FindParm("-gl_force_enable_scaled_resolve") )
{
m_info.m_cantResolveScaled = false;
}
// gamma decode impacting shader codegen
m_info.m_costlyGammaFlips = false;
if (m_info.m_osComboVersion < 0x000A0600) // if Leopard
m_info.m_costlyGammaFlips = true;
if (m_info.m_atiR5xx) // or r5xx - always
m_info.m_costlyGammaFlips = true;
if ( (m_info.m_atiR6xx) && (m_info.m_osComboVersion < 0x000A0605) ) // or r6xx prior to 10.6.5
m_info.m_costlyGammaFlips = true;
// The OpenGL driver for Intel HD4000 on 10.8 has a bug in the GLSL compiler, which was fixed
// in 10.9 (and unlikely to be fixed in 10.8). See intelglmallocworkaround.h for more info.
bool mountainLion = (m_info.m_osComboVersion >= 0x000A0800) && (m_info.m_osComboVersion < 0x000A0900);
m_info.m_badDriver108Intel = mountainLion && m_info.m_intelHD4000;
if ( CommandLine()->FindParm("-glmenablemallocworkaround") )
{
m_info.m_badDriver108Intel = true;
}
if ( CommandLine()->FindParm("-glmdisablemallocworkaround") )
{
m_info.m_badDriver108Intel = false;
}
[nsglCtx release];
[pixFmt release];
[tempPool release];
}
GLMRendererInfo::~GLMRendererInfo( void )
{
if (m_displays)
{
// delete all the new'd renderer infos that the table tracks
FOR_EACH_VEC( *m_displays, i )
{
delete (*this->m_displays)[i];
}
delete m_displays;
m_displays = NULL;
}
}
extern "C" int DisplayInfoSortFunction( GLMDisplayInfo* const *A, GLMDisplayInfo* const *B )
{
int bigger = -1;
int smaller = 1; // adjust these to get the ordering you want
// check main-ness - main should win
uint maskOfMainDisplay = CGDisplayIDToOpenGLDisplayMask( CGMainDisplayID() );
//Assert( maskOfMainDisplay==1 ); // just curious
int mainscreena = (*A)->m_info.m_glDisplayMask & maskOfMainDisplay;
int mainscreenb = (*B)->m_info.m_glDisplayMask & maskOfMainDisplay;
if ( mainscreena > mainscreenb )
{
return bigger;
}
else if ( mainscreena < mainscreenb )
{
return smaller;
}
// check area - larger screen should win
int areaa = (*A)->m_info.m_displayPixelWidth * (*A)->m_info.m_displayPixelHeight;
int areab = (*B)->m_info.m_displayPixelWidth * (*B)->m_info.m_displayPixelHeight;
if ( areaa > areab )
{
return bigger;
}
else if ( areaa < areab )
{
return smaller;
}
return 0; // equal rank
}
void GLMRendererInfo::PopulateDisplays( void )
{
Assert( !m_displays );
m_displays = new CUtlVector< GLMDisplayInfo* >;
for( int i=0; i<32; i++)
{
// check mask to see if the selected display intersects this renderer
CGOpenGLDisplayMask dspMask = (CGOpenGLDisplayMask)(1<<i);
if ( m_info.m_displayMask & dspMask )
{
// exclude teeny displays (they may represent offline displays)
// exclude inactive displays
CGDirectDisplayID cgid = CGOpenGLDisplayMaskToDisplayID ( dspMask );
if ( (cgid != kCGNullDirectDisplay) && CGDisplayIsActive( cgid ) && (CGDisplayPixelsWide( cgid ) >= 512) && (CGDisplayPixelsHigh( cgid ) >= 384) )
{
GLMDisplayInfo *newdisp = new GLMDisplayInfo( cgid, dspMask );
m_displays->AddToTail( newdisp );
}
}
}
// now sort the table of displays.
m_displays->Sort( DisplayInfoSortFunction );
// then go back and ask each display to populate its display mode table.
FOR_EACH_VEC( *m_displays, i )
{
(*this->m_displays)[i]->PopulateModes();
}
}
const char *CheesyRendererDecode( uint value )
{
switch(value)
{
case 0x00020200 : return "Generic";
case 0x00020400 : return "GenericFloat";
case 0x00020600 : return "AppleSW";
case 0x00021000 : return "ATIRage128";
case 0x00021200 : return "ATIRadeon";
case 0x00021400 : return "ATIRagePro";
case 0x00021600 : return "ATIRadeon8500";
case 0x00021800 : return "ATIRadeon9700";
case 0x00021900 : return "ATIRadeonX1000";
case 0x00021A00 : return "ATIRadeonX2000";
case 0x00022000 : return "NVGeForce2MX";
case 0x00022200 : return "NVGeForce3";
case 0x00022400 : return "NVGeForceFX";
case 0x00022600 : return "NVGeForce8xxx";
case 0x00023000 : return "VTBladeXP2";
case 0x00024000 : return "Intel900";
case 0x00024200 : return "IntelX3100";
case 0x00040000 : return "Mesa3DFX";
default: return "UNKNOWN";
}
}
extern const char *GLMDecode( GLMThing_t thingtype, unsigned long value );
void GLMRendererInfo::Dump( int which )
{
GLMPRINTF(("\n #%d: GLMRendererInfo @ %08x, renderer-id=%s(%08x) display-mask=%08x vram=%dMB",
which, this,
CheesyRendererDecode( m_info.m_rendererID & 0x00FFFF00 ), m_info.m_rendererID,
m_info.m_displayMask,
m_info.m_vidMemory >> 20
));
GLMPRINTF(("\n VendorID=%04x DeviceID=%04x Model=%s",
m_info.m_pciVendorID,
m_info.m_pciDeviceID,
m_info.m_pciModelString
));
FOR_EACH_VEC( *m_displays, i )
{
(*m_displays)[i]->Dump(i);
}
}
//===============================================================================
GLMDisplayDB::GLMDisplayDB ( void )
{
m_renderers = NULL;
}
GLMDisplayDB::~GLMDisplayDB ( void )
{
if (m_renderers)
{
// delete all the new'd renderer infos that the table tracks
FOR_EACH_VEC( *m_renderers, i )
{
delete (*this->m_renderers)[i];
}
delete m_renderers;
m_renderers = NULL;
}
}
extern "C" int RendererInfoSortFunction( GLMRendererInfo * const *A, GLMRendererInfo* const *B )
{
int bigger = -1;
int smaller = 1;
// check VRAM
if ( (*A)->m_info.m_vidMemory > (*B)->m_info.m_vidMemory )
{
return bigger;
}
else if ( (*A)->m_info.m_vidMemory < (*B)->m_info.m_vidMemory )
{
return smaller;
}
// check MSAA limit
if ( (*A)->m_info.m_maxSamples > (*B)->m_info.m_maxSamples )
{
return bigger;
}
else if ( (*A)->m_info.m_maxSamples < (*B)->m_info.m_maxSamples )
{
return smaller;
}
/*
// this was not a great idea here..
// check if one has the main screen - is that index 0 in all cases?
uint maskOfMainDisplay = CGDisplayIDToOpenGLDisplayMask( CGMainDisplayID() );
Assert( maskOfMainDisplay==1 ); // just curious
int mainscreena = (*A)->m_info.m_displayMask & maskOfMainDisplay;
int mainscreenb = (*B)->m_info.m_displayMask & maskOfMainDisplay;
if ( mainscreena > mainscreenb )
{
return bigger;
}
else if ( mainscreena < mainscreenb )
{
return smaller;
}
*/
return 0; // equal rank
}
/** some code that NV gave us. more generalized approach below..
static io_registry_entry_t lookup_dev_NV(char *name)
{
mach_port_t master_port = 0;
io_iterator_t iterator;
io_registry_entry_t nub = 0;
kern_return_t ret;
IOMasterPort(MACH_PORT_NULL, &master_port);
ret = IOServiceGetMatchingServices(master_port, IOServiceMatching(name), &iterator);
if (iterator) {
nub = IOIteratorNext(iterator);
if (IOIteratorNext(iterator)) {
printf("warning: more than one card?\n");
}
IOObjectRelease(iterator);
}
IOObjectRelease(master_port);
return nub;
}
void GetDriverInfoString_NV( char *driverNameBuf, int driverNameBufLen )
{
// courtesy NVIDIA dev rel
io_registry_entry_t registry;
kern_return_t ret;
//
// Get NVKernel / IOGLBundleName
//
registry = lookup_dev_NV("NVKernel");
if (!registry) {
fprintf(stderr, "error: could not find NVKernel IORegistry entry!\n");
return;
}
CFMutableDictionaryRef entry;
ret = IORegistryEntryCreateCFProperties(registry, &entry, kCFAllocatorDefault, 0);
if (ret != kIOReturnSuccess) {
fprintf(stderr, "error: could not create CFProperties dictionary!\n");
return;
}
CFStringRef bundle_name_ref = (CFStringRef) CFDictionaryGetValue(entry, CFSTR("IOGLBundleName"));
if (!bundle_name_ref) {
fprintf(stderr, "error: could not get IOGLBundleName reference!\n");
return;
}
const char *bundle_name = CFStringGetCStringPtr(bundle_name_ref, CFStringGetSystemEncoding());
if (!bundle_name) {
fprintf(stderr, "error: could not get IOGLBundleName!\n");
return;
}
CFStringRef identifier = CFStringCreateWithFormat(NULL, NULL, CFSTR("com.apple.%s"), bundle_name);
//
// Get bundle information
//
CFBundleRef bundle;
bundle = CFBundleGetBundleWithIdentifier(identifier);
if (!bundle) {
fprintf(stderr, "error: could not get GL driver bundle!\n");
return;
}
CFDictionaryRef dict;
CFStringRef info;
dict = CFBundleGetInfoDictionary(bundle);
if (!dict) {
fprintf(stderr, "error: could not get bundle info dictionary!\n");
return;
}
info = (CFStringRef) CFDictionaryGetValue(dict, CFSTR("CFBundleGetInfoString"));
if (!info) {
fprintf(stderr, "error: could not get CFBundleGetInfoString!\n");
return;
}
CFStringGetCString(info, driverNameBuf, driverNameBufLen, CFStringGetSystemEncoding());
IOObjectRelease(registry);
}
**/
void GLMDisplayDB::PopulateRenderers( void )
{
Assert( !m_renderers );
m_renderers = new CUtlVector< GLMRendererInfo* >;
// now walk the renderer list
// find the eligible ones and insert them into vector
// if more than one, sort the vector by desirability with favorite at 0
// then ask each renderer object to populate its displays
// turns out how you have to do this is to walk the display mask 1<<n..
// and query at each one, what renderers can hit that one.
// when you find one, see if it's already in the vector above. if not, add it.
// later, we sort them.
for( int i=0; i<32; i++ )
{
CGLError cgl_err = (CGLError)0;
CGLRendererInfoObj cgl_rend = NULL;
GLint nrend;
CGOpenGLDisplayMask dspMask = (CGOpenGLDisplayMask)(1<<i);
CGDirectDisplayID cgid = CGOpenGLDisplayMaskToDisplayID( dspMask );
bool selected = true; // assume the best
if (selected)
{
if ( (cgid == kCGNullDirectDisplay) || (!CGDisplayIsActive( cgid )) )
{
selected = false;
}
}
if (selected)
{
cgl_err = CGLQueryRendererInfo( dspMask, &cgl_rend, &nrend ); // FIXME this call spams the console if you ask about an out of bounds display mask
// "<Error>: unknown error code: invalid display"
// we can fix that by getting the active display mask first.
if (!cgl_err)
{
// walk the renderers that can hit this display
// add to table if not already in table, and minimums met
for( int j=0; j<nrend; j++)
{
int problems = 0;
GLMRendererInfoFields fields;
memset( &fields, 0, sizeof(fields) );
// early out if renderer ID already in the table
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPRendererID, &fields.m_rendererID ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPDisplayMask, &fields.m_displayMask ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPFullScreen, &fields.m_fullscreen ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPAccelerated, &fields.m_accelerated ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPWindow, &fields.m_windowed ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPBufferModes, &fields.m_bufferModes ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPColorModes, &fields.m_colorModes ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPDepthModes, &fields.m_depthModes ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPStencilModes, &fields.m_stencilModes ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPMaxAuxBuffers, &fields.m_maxAuxBuffers ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPMaxSampleBuffers, &fields.m_maxSampleBuffers ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPMaxSamples, &fields.m_maxSamples ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPSampleModes, &fields.m_sampleModes ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPSampleAlpha, &fields.m_sampleAlpha ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPVideoMemory, &fields.m_vidMemory ); problems += (cgl_err != 0);
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPTextureMemory, &fields.m_texMemory ); problems += (cgl_err != 0);
// Make sure the renderer is attached to a display.
GLint online;
cgl_err = CGLDescribeRenderer( cgl_rend, j, kCGLRPOnline, &online ); problems += (cgl_err != 0);
problems += ( online == 0 );
// decide if this renderer goes in the table.
bool selected = !problems;
if (selected)
{
// grab the OS version
long vMajor = 0; long vMinor = 0; long vMinorMinor = 0;
OSStatus gestalt_err = 0;
gestalt_err = Gestalt(gestaltSystemVersionMajor, &vMajor);
Assert(!gestalt_err);
gestalt_err = Gestalt(gestaltSystemVersionMinor, &vMinor);
Assert(!gestalt_err);
gestalt_err = Gestalt(gestaltSystemVersionBugFix, &vMinorMinor);
Assert(!gestalt_err);
//encode into one quantity - 10.6.3 becomes 0x000A0603
fields.m_osComboVersion = (vMajor << 16) | (vMinor << 8) | (vMinorMinor);
if (CommandLine()->FindParm("-fakeleopard"))
{
// lie
fields.m_osComboVersion = 0x000A0508;
}
if (fields.m_osComboVersion < 0x000A0508)
{
// no support below 10.5.8
// we'll wind up with no valid renderers and give up
selected = false;
}
}
if (selected)
{
// gather more info from IOKit
// cribbed from http://developer.apple.com/mac/library/samplecode/VideoHardwareInfo/listing3.html
CFTypeRef typeCode;
CFDataRef vendorID, deviceID, model;
io_registry_entry_t dspPort;
// Get the I/O Kit service port for the display
dspPort = CGDisplayIOServicePort( cgid );
// Get the information for the device
// The vendor ID, device ID, and model are all available as properties of the hardware's I/O Kit service port
vendorID = (CFDataRef)IORegistryEntrySearchCFProperty(dspPort,kIOServicePlane,CFSTR("vendor-id"), kCFAllocatorDefault,kIORegistryIterateRecursively | kIORegistryIterateParents);
deviceID = (CFDataRef)IORegistryEntrySearchCFProperty(dspPort,kIOServicePlane,CFSTR("device-id"), kCFAllocatorDefault,kIORegistryIterateRecursively | kIORegistryIterateParents);
model = (CFDataRef)IORegistryEntrySearchCFProperty(dspPort,kIOServicePlane,CFSTR("model"), kCFAllocatorDefault,kIORegistryIterateRecursively | kIORegistryIterateParents);
// Send the appropriate data to the outputs checking to validate the data
if(vendorID)
{
fields.m_pciVendorID = *((UInt32*)CFDataGetBytePtr(vendorID));
}
else
{
fields.m_pciVendorID = 0;
}
if(deviceID)
{
fields.m_pciDeviceID = *((UInt32*)CFDataGetBytePtr(deviceID));
}
else
{
fields.m_pciDeviceID = 0;
}
if(model)
{
int length = CFDataGetLength(model);
char *data = (char*)CFDataGetBytePtr(model);
Q_strncpy( fields.m_pciModelString, data, sizeof(fields.m_pciModelString) );
}
else
{
Q_strncpy( fields.m_pciModelString, "UnknownModel", sizeof(fields.m_pciModelString) );
}
// iterate through IOAccelerators til we find one that matches the vendorid and deviceid of this renderer (ugh!)
// this provides the driver version string which can in turn be used to uniquely identify bad drivers and special case for them
// first example to date - forcing vsync on 10.6.4 + NV
{
io_iterator_t ioIterator = (io_iterator_t)0;
io_service_t ioAccelerator;
kern_return_t ioResult = 0;
bool ioDone = false;
ioResult = IOServiceGetMatchingServices( kIOMasterPortDefault, IOServiceMatching("IOAccelerator"), &ioIterator );
if( ioResult == KERN_SUCCESS )
{
ioAccelerator = 0;
while( ( !ioDone ) && ( ioAccelerator = IOIteratorNext( ioIterator ) ) )
{
io_service_t ioDevice;
ioDevice = 0;
ioResult = IORegistryEntryGetParentEntry( ioAccelerator, kIOServicePlane, &ioDevice);
CFDataRef this_vendorID, this_deviceID;
if(ioResult == KERN_SUCCESS)
{
this_vendorID = (CFDataRef)IORegistryEntryCreateCFProperty(ioDevice, CFSTR("vendor-id"), kCFAllocatorDefault, kNilOptions );
this_deviceID = (CFDataRef)IORegistryEntryCreateCFProperty(ioDevice, CFSTR("device-id"), kCFAllocatorDefault, kNilOptions );
if (this_vendorID && this_deviceID) // null check..
{
// see if it matches. if so, do our business (get the extended version string), set ioDone, call it a day
unsigned short this_vendorIDValue = *(unsigned short*)CFDataGetBytePtr(this_vendorID);
unsigned short this_deviceIDValue = *(unsigned short*)CFDataGetBytePtr(this_deviceID);
if ( (fields.m_pciVendorID == this_vendorIDValue) && (fields.m_pciDeviceID == this_deviceIDValue) )
{
// see if it matches. if so, do our business (get the extended version string), set ioDone, call it a day
unsigned short* this_vendorIDBytes = (unsigned short*)CFDataGetBytePtr( this_vendorID );
unsigned short* this_deviceIDBytes = (unsigned short*)CFDataGetBytePtr( this_deviceID );
if (this_vendorIDBytes && this_deviceIDBytes) // null check...
{
unsigned short this_vendorIDValue = *this_vendorIDBytes;
unsigned short this_deviceIDValue = *this_deviceIDBytes;
if ( (fields.m_pciVendorID == this_vendorIDValue) && (fields.m_pciDeviceID == this_deviceIDValue) )
{
// match, stop looking
ioDone = true;
// get extended info
CFStringRef this_ioglName = (CFStringRef)IORegistryEntryCreateCFProperty( ioAccelerator, CFSTR("IOGLBundleName"), kCFAllocatorDefault, kNilOptions );
NSString *bundlePath = [ NSString stringWithFormat:@"/System/Library/Extensions/%@.bundle", this_ioglName ];
NSDictionary* this_driverDict = [ [NSBundle bundleWithPath: bundlePath] infoDictionary ];
if (this_driverDict)
{
NSString* this_driverInfo = [ this_driverDict objectForKey:@"CFBundleGetInfoString" ];
if ( this_driverInfo )
{
const char* theString = [ this_driverInfo UTF8String ];
strncpy(fields.m_driverInfoString, theString, sizeof( fields.m_driverInfoString ) );
}
}
// [bundlePath release];
CFRelease(this_ioglName);
}
}
CFRelease(this_vendorID);
CFRelease(this_deviceID);
}
}
}
}
}
IOObjectRelease(ioAccelerator);
IOObjectRelease(ioIterator);
}
// Release vendorID, deviceID, and model as appropriate
if(vendorID)
CFRelease(vendorID);
if(deviceID)
CFRelease(deviceID);
if(model)
CFRelease(model);
// generate shorthand bools
switch( fields.m_pciVendorID )
{
case 0x1002: //ATI
{
fields.m_ati = true;
// http://www.pcidatabase.com/search.php?device_search_str=radeon&device_search.x=0&device_search.y=0&device_search=search+devices
// Mac-relevant ATI R5xx PCI device ID's lie in this range: 0x7100 - 0x72FF
// X1600, X1900, X1950
if ( (fields.m_pciDeviceID >= 0x7100) && (fields.m_pciDeviceID <= 0x72ff) )
{
fields.m_atiR5xx = true;
}
// R6xx PCI device ID's lie in these ranges:
// 0x94C1 - 0x9515 ... also 0x9581 - 0x9713
// 2400HD, 2600HD, 3870, et al
if (
( (fields.m_pciDeviceID >= 0x94C1) && (fields.m_pciDeviceID <= 0x9515) )
|| ( (fields.m_pciDeviceID >= 0x9581) && (fields.m_pciDeviceID <= 0x9713) )
)
{
fields.m_atiR6xx = true;
}
// R7xx PCI device ID's lie in: 0x9440 - 0x9460, also 9480-94b5.
// why there is an HD5000 at 9462, I dunno. Don't think that's an R8xx part.
if (
( (fields.m_pciDeviceID >= 0x9440) && (fields.m_pciDeviceID <= 0x9460) )
|| ( (fields.m_pciDeviceID >= 0x9480) && (fields.m_pciDeviceID <= 0x94B5) )
)
{
fields.m_atiR7xx = true;
}
// R8xx: 0x6898-0x68BE
if ( (fields.m_pciDeviceID >= 0x6898) && (fields.m_pciDeviceID <= 0x68Be) )
{
fields.m_atiR8xx = true;
}
#if 0
// turned off, but we could use this for cross check.
// we could also use the bit encoding of the renderer ID to ferret out a geberation clue.
// string-scan for each generation
// this could be a lot better if we got the precise PCI ID's used and/or cross-ref'd that against the driver name
if (strstr("X1600", fields.m_pciModelString) || strstr("X1900", fields.m_pciModelString) || strstr("X1950", fields.m_pciModelString) )
{
fields.m_atiR5xx = true;
}
if (strstr("2600", fields.m_pciModelString) || strstr("3870", fields.m_pciModelString) || strstr("X2000", fields.m_pciModelString) )
{
fields.m_atiR6xx = true;
}
if (strstr("4670", fields.m_pciModelString) || strstr("4650", fields.m_pciModelString) || strstr("4850", fields.m_pciModelString)|| strstr("4870", fields.m_pciModelString) )
{
fields.m_atiR7xx = true;
}
#endif
}
break;
case 0x8086: //INTC
{
fields.m_intel = true;
switch( fields.m_pciDeviceID )
{
case 0x27A6: fields.m_intel95x = true; break; // GMA 950
case 0x2A02: fields.m_intel3100 = true; break; // X3100
case 0x0166: fields.m_intelHD4000 = true; break; // HD4000
}
}
break;
case 0x10DE: //NV
{
fields.m_nv = true;
// G7x: 0x0391 0x393 0x0395 (7300/7600 GT) 0x009D (Quadro FX)
if ( (fields.m_pciDeviceID == 0x0391) || (fields.m_pciDeviceID == 0x0393) || (fields.m_pciDeviceID == 0x0395) || (fields.m_pciDeviceID == 0x009D) )
{
fields.m_nvG7x = true;
}
// G8x: 0400-04ff, also 0x5E1 (GTX280) through 0x08FF
if (
( (fields.m_pciDeviceID >= 0x0400) && (fields.m_pciDeviceID <= 0x04ff) )
|| ( (fields.m_pciDeviceID >= 0x05E1) && (fields.m_pciDeviceID <= 0x08ff) )
)
{
fields.m_nvG8x = true;
}
if ( fields.m_pciDeviceID > 0x0900 )
{
fields.m_nvNewer = true;
}
// detect the specific revision of NV driver in 10.6.4 that caused all the grief
if (strstr(fields.m_driverInfoString, "1.6.16.11 (19.5.8f01)"))
{
fields.m_badDriver1064NV = true;
}
}
break;
}
}
if (selected)
{
// dupe check
FOR_EACH_VEC( *m_renderers, i )
{
uint rendid = (*m_renderers)[i]->m_info.m_rendererID;
if ( rendid == fields.m_rendererID )
{
// don't add to table, it's a dupe
selected = false;
}
}
}
if (selected)
{
// criteria check
if (fields.m_fullscreen==0)
selected = false;
if (fields.m_accelerated==0)
selected = false;
if (fields.m_windowed==0)
selected = false;
}
Assert( fields.m_displayMask != 0 );
if (selected)
{
// add to table
// note this constructor makes a dummy context just long enough to query remaining fields in the m_info.
GLMRendererInfo *newinfo = new GLMRendererInfo( &fields );
m_renderers->AddToTail( newinfo );
}
}
if (cgl_rend)
{
CGLDestroyRendererInfo( cgl_rend );
}
}
}
}
// now sort the table.
m_renderers->Sort( RendererInfoSortFunction );
// then go back and ask each renderer to populate its display info table.
FOR_EACH_VEC( *m_renderers, i )
{
(*m_renderers)[i]->PopulateDisplays();
}
}
void GLMDisplayDB::PopulateFakeAdapters( uint realRendererIndex ) // fake adapters = one real adapter times however many displays are on it
{
// presumption is that renderers have been populated.
Assert( GetRendererCount() > 0 );
Assert( realRendererIndex < GetRendererCount() );
m_fakeAdapters.RemoveAll();
// for( int r = 0; r < GetRendererCount(); r++ )
int r = realRendererIndex;
{
for( int d = 0; d < GetDisplayCount( r ); d++ )
{
GLMFakeAdapter temp;
temp.m_rendererIndex = r;
temp.m_displayIndex = d;
m_fakeAdapters.AddToTail( temp );
}
}
}
void GLMDisplayDB::Populate(void)
{
this->PopulateRenderers();
// passing in zero here, constrains the set of fake adapters (GL renderer + a display) to the ones using the highest ranked renderer.
//FIXME introduce some kind of convar allowing selection of other GPU's in the system.
int realRendererIndex = 0;
if (CommandLine()->FindParm("-glmrenderer0"))
realRendererIndex = 0;
if (CommandLine()->FindParm("-glmrenderer1"))
realRendererIndex = 1;
if (CommandLine()->FindParm("-glmrenderer2"))
realRendererIndex = 2;
if (CommandLine()->FindParm("-glmrenderer3"))
realRendererIndex = 3;
if (realRendererIndex >= GetRendererCount())
{
// fall back to 0
realRendererIndex = 0;
}
this->PopulateFakeAdapters( 0 );
#if GLMDEBUG
this->Dump();
#endif
}
int GLMDisplayDB::GetFakeAdapterCount( void )
{
return m_fakeAdapters.Count();
}
bool GLMDisplayDB::GetFakeAdapterInfo( int fakeAdapterIndex, int *rendererOut, int *displayOut, GLMRendererInfoFields *rendererInfoOut, GLMDisplayInfoFields *displayInfoOut )
{
if (fakeAdapterIndex >= GetFakeAdapterCount() )
{
*rendererOut = 0;
*displayOut = 0;
return true; // fail
}
*rendererOut = m_fakeAdapters[fakeAdapterIndex].m_rendererIndex;
*displayOut = m_fakeAdapters[fakeAdapterIndex].m_displayIndex;
bool rendResult = GetRendererInfo( *rendererOut, rendererInfoOut );
bool dispResult = GetDisplayInfo( *rendererOut, *displayOut, displayInfoOut );
return rendResult || dispResult;
}
int GLMDisplayDB::GetRendererCount( void )
{
return m_renderers->Count();
}
bool GLMDisplayDB::GetRendererInfo( int rendererIndex, GLMRendererInfoFields *infoOut )
{
memset( infoOut, 0, sizeof( GLMRendererInfoFields ) );
if (rendererIndex >= GetRendererCount())
return true; // fail
GLMRendererInfo *rendInfo = (*m_renderers)[rendererIndex];
*infoOut = rendInfo->m_info;
return false;
}
int GLMDisplayDB::GetDisplayCount( int rendererIndex )
{
if (rendererIndex >= GetRendererCount())
return 0; // fail
GLMRendererInfo *rendInfo = (*m_renderers)[rendererIndex];
return rendInfo->m_displays->Count();
}
bool GLMDisplayDB::GetDisplayInfo( int rendererIndex, int displayIndex, GLMDisplayInfoFields *infoOut )
{
memset( infoOut, 0, sizeof( GLMDisplayInfoFields ) );
if (rendererIndex >= GetRendererCount())
return true; // fail
if (displayIndex >= GetDisplayCount(rendererIndex))
return true; // fail
GLMDisplayInfo *displayInfo = (*(*m_renderers)[rendererIndex]->m_displays)[displayIndex];
*infoOut = displayInfo->m_info;
return false;
}
int GLMDisplayDB::GetModeCount( int rendererIndex, int displayIndex )
{
if (rendererIndex >= GetRendererCount())
return 0; // fail
if (displayIndex >= GetDisplayCount(rendererIndex))
return 0; // fail
GLMDisplayInfo *displayInfo = (*(*m_renderers)[rendererIndex]->m_displays)[displayIndex];
return displayInfo->m_modes->Count();
}
bool GLMDisplayDB::GetModeInfo( int rendererIndex, int displayIndex, int modeIndex, GLMDisplayModeInfoFields *infoOut )
{
memset( infoOut, 0, sizeof( GLMDisplayModeInfoFields ) );
if (rendererIndex >= GetRendererCount())
return true; // fail
if (displayIndex >= GetDisplayCount(rendererIndex))
return true; // fail
if (modeIndex >= GetModeCount(rendererIndex,displayIndex))
return true; // fail
if (modeIndex>=0)
{
GLMDisplayMode *displayModeInfo = (*(*(*m_renderers)[rendererIndex]->m_displays)[displayIndex]->m_modes)[ modeIndex ];
*infoOut = displayModeInfo->m_info;
}
else
{
// passing modeIndex = -1 means "tell me about current mode"..
GLMRendererInfo *rendInfo = (*m_renderers)[ rendererIndex ];
GLMDisplayInfo *dispinfo = (*rendInfo ->m_displays)[displayIndex];
CGDirectDisplayID cgid = dispinfo->m_info.m_cgDisplayID;
CFDictionaryRef curModeDict = CGDisplayCurrentMode( cgid );
CFNumberRef number;
CFBooleanRef boolean;
CFArrayRef modeList;
CGDisplayErr cgderr;
// get the mode number from the mode dict (using system mode numbering, not our sorted numbering)
if (curModeDict)
{
int modeIndex=0;
number = (CFNumberRef)CFDictionaryGetValue(curModeDict, kCGDisplayMode);
CFNumberGetValue(number, kCFNumberLongType, &modeIndex);
// grab the width and height, I am unclear on whether this is the displayed FB width or the display device width.
int screenWidth=0;
int screenHeight=0;
int refreshHz=0;
number = (CFNumberRef)CFDictionaryGetValue(curModeDict, kCGDisplayWidth);
CFNumberGetValue(number, kCFNumberLongType, &screenWidth);
number = (CFNumberRef)CFDictionaryGetValue(curModeDict, kCGDisplayHeight);
CFNumberGetValue(number, kCFNumberLongType, &screenHeight);
number = (CFNumberRef)CFDictionaryGetValue(curModeDict, kCGDisplayRefreshRate);
CFNumberGetValue(number, kCFNumberLongType, &refreshHz);
GLMPRINTF(( "-D- GLMDisplayDB::GetModeInfo sees mode-index=%d, width=%d, height=%d on CGID %08x (display index %d on rendererindex %d)",
modeIndex,
screenWidth,
screenHeight,
cgid,
displayIndex,
rendererIndex ));
// now match
int foundIndex = -1;
FOR_EACH_VEC( (*dispinfo->m_modes), i )
{
GLMDisplayMode *mode = (*dispinfo->m_modes)[i];
if (mode->m_info.m_modePixelWidth == screenWidth)
{
if (mode->m_info.m_modePixelHeight == screenHeight)
{
if (mode->m_info.m_modeRefreshHz == refreshHz)
{
foundIndex = i;
*infoOut = mode->m_info;
return false;
}
}
}
}
}
// if we get here, we could not find the mode
memset( infoOut, 0, sizeof( *infoOut ) );
return true; // fail
}
return false;
}
void GLMDisplayDB::Dump( void )
{
GLMPRINTF(("\n GLMDisplayDB @ %08x ",this ));
FOR_EACH_VEC( *m_renderers, i )
{
(*m_renderers)[i]->Dump(i);
}
}
//===============================================================================
GLMDisplayInfo::GLMDisplayInfo( CGDirectDisplayID displayID, CGOpenGLDisplayMask displayMask )
{
m_info.m_cgDisplayID = displayID;
m_info.m_glDisplayMask = displayMask;
// extract info about this display such as pixel width and height
m_info.m_displayPixelWidth = (uint)CGDisplayPixelsWide( m_info.m_cgDisplayID );
m_info.m_displayPixelHeight = (uint)CGDisplayPixelsHigh( m_info.m_cgDisplayID );
m_modes = NULL;
}
GLMDisplayInfo::~GLMDisplayInfo( void )
{
if (m_modes)
{
// delete all the new'd display modes
FOR_EACH_VEC( *m_modes, i )
{
delete (*this->m_modes)[i];
}
delete m_modes;
m_modes = NULL;
}
}
extern "C" int DisplayModeSortFunction( GLMDisplayMode * const *A, GLMDisplayMode * const *B )
{
int bigger = -1;
int smaller = 1; // adjust these for desired ordering
// check refreshrate - higher should win
if ( (*A)->m_info.m_modeRefreshHz > (*B)->m_info.m_modeRefreshHz )
{
return bigger;
}
else if ( (*A)->m_info.m_modeRefreshHz < (*B)->m_info.m_modeRefreshHz )
{
return smaller;
}
// check area - larger mode should win
int areaa = (*A)->m_info.m_modePixelWidth * (*A)->m_info.m_modePixelHeight;
int areab = (*B)->m_info.m_modePixelWidth * (*B)->m_info.m_modePixelHeight;
if ( areaa > areab )
{
return bigger;
}
else if ( areaa < areab )
{
return smaller;
}
return 0; // equal rank
}
void GLMDisplayInfo::PopulateModes( void )
{
Assert( !m_modes );
m_modes = new CUtlVector< GLMDisplayMode* >;
CFArrayRef modeList;
// CGDisplayErr cgderr;
CFDictionaryRef cgvidmode;
CFNumberRef number;
CFBooleanRef boolean;
modeList = CGDisplayAvailableModes( m_info.m_cgDisplayID );
if ( modeList != NULL )
{
// examine each mode
CFIndex count = CFArrayGetCount( modeList );
for (CFIndex i = 0; i < count; i++)
{
long modeHeight = 0, modeWidth = 0;
long depth = 0;
long refreshrate = 0;
Boolean usable, stretched = false;
// grab the mode dictionary
cgvidmode = (CFDictionaryRef)CFArrayGetValueAtIndex( modeList, i);
// grab mode params we need
number = (CFNumberRef)CFDictionaryGetValue(cgvidmode, kCGDisplayBitsPerPixel);
CFNumberGetValue(number, kCFNumberLongType, &depth);
boolean = (CFBooleanRef)CFDictionaryGetValue(cgvidmode, kCGDisplayModeUsableForDesktopGUI) ;
usable = CFBooleanGetValue(boolean);
boolean = (CFBooleanRef)CFDictionaryGetValue(cgvidmode, kCGDisplayModeIsStretched);
if (NULL != boolean)
{
stretched = CFBooleanGetValue(boolean);
}
if ( usable && (!stretched) && (depth==32) )
{
// we're going to log this mode to the mode table.
// get height of mode
number = (CFNumberRef)CFDictionaryGetValue( cgvidmode, kCGDisplayHeight );
CFNumberGetValue(number, kCFNumberLongType, &modeHeight);
// get width of mode
number = (CFNumberRef)CFDictionaryGetValue( cgvidmode, kCGDisplayWidth );
CFNumberGetValue(number, kCFNumberLongType, &modeWidth);
// get refresh rate of mode
number = (CFNumberRef)CFDictionaryGetValue( cgvidmode, kCGDisplayRefreshRate );
double flrefreshrate = 0.0f;
CFNumberGetValue( number, kCFNumberDoubleType, &flrefreshrate );
refreshrate = (int)flrefreshrate;
// exclude silly small modes
if ( (modeHeight >= 384) && (modeWidth >= 512) )
{
GLMDisplayMode *newmode = new GLMDisplayMode( modeWidth, modeHeight, refreshrate );
m_modes->AddToTail( newmode );
}
}
}
}
// now sort the modes
// primary key is refresh rate
// secondary key is area
m_modes->Sort( DisplayModeSortFunction );
}
void GLMDisplayInfo::Dump( int which )
{
GLMPRINTF(("\n #%d: GLMDisplayInfo @ %08x, cg-id=%08x display-mask=%08x pixwidth=%d pixheight=%d", which, (int)this, m_info.m_cgDisplayID, m_info.m_glDisplayMask, m_info.m_displayPixelWidth, m_info.m_displayPixelHeight ));
FOR_EACH_VEC( *m_modes, i )
{
(*m_modes)[i]->Dump(i);
}
}