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|
/*
SCREENPreference.c
AUTHORS:
Allen.Ingling@nyu.edu awi
mario.kleiner.de@gmail.com mk
PLATFORMS:
All.
HISTORY:
2/28/04 awi Created.
10/29/04 awi Fixed two warnings, one where a const char should have been been char, the other the other way around.
1/20/05 awi Added a preference for debugging MakeTexture
5/30/05 mk New preference setting screenSkipSyncTests -- allow skipping/shortening of some internal tests.
5/30/05 mk New preference setting screenVisualDebugLevel.
3/07/05 awi New preference SuppressAllWarnings.
11/15/06 mk New preference vbl & flip timestamping mode.
DESCRIPTION:
Read and set preferences.
Note that we do don't do sanity checking on arguments provided in conjunction for unsuported preferences. That might be conveivably be a mildly
useful feature for catching cross-platform errors if we detect argument type errors before detecting the error of using a platform unsupported preference.
*/
#include "Screen.h"
#if PSYCH_SYSTEM != PSYCH_WINDOWS
// for getpid()
#include <sys/types.h>
#include <unistd.h>
#else
// Windows doesn't have getpid() - We create a pseudo-getpid:
psych_uint64 getpid(void)
{
HANDLE p;
p=GetCurrentProcess();
return((psych_uint64) p);
}
#endif
/*
OS 9 Psychtoolbox preferences:
Supported
oldBool=Screen('Preference', 'IgnoreCase' [,psych_bool])
tick0Secs=Screen('Preference', 'Tick0Secs', tick0Secs)
psychTableVersion=Screen('Preference', 'PsychTableVersion')
mexFunctionName=Screen('Preference', 'PsychTableCreator')
proc=Screen('Preference', 'Process', signature) //returns PID and does not accept the signature
Read supported but will not accept set:
oldBool=Screen('Preference','Backgrounding',[psych_bool])
oldSecondsMultiplier=Screen('Preference', 'SecondsMultiplier' [,secondsMultiplier])
Unsupported and we should
oldBool=Screen('Preference' ',AllowMirroring' [,psych_bool])
psych_bool=Screen('Preference' ',MirroringIsOn')
oldBits=Screen(windowPtrOrScreenNumber, 'Preference', 'DacBits', bits)
Unsupported
available=Screen('Preference','Available')
nextProc=Screen('Preference','NextProcess',[proc])
oldBool=Screen('Preference','UseNewHideMenuBar',[psych_bool])
Unsupported OS 9 Mac video driver specific
psych_bool=Screen(windowPtrOrScreenNumber,'Preference','FixedClut')
oldBool=Screen(windowPtrOrScreenNumber,'Preference','SetClutDriverWaitsForBlanking',[psych_bool])
oldBool=Screen(windowPtrOrScreenNumber,'Preference','AskSetClutDriverToWaitForBlanking',[psych_bool])
oldValue=Screen(windowPtrOrScreenNumber,'Preference','SetClutSAI',[value])
oldBool=Screen(windowPtrOrScreenNumber,'Preference','SetClutCallsWaitBlanking',[psych_bool])
oldBool=Screen(windowPtrOrScreenNumber,'Preference','SetClutPunchesBlankingClock',[psych_bool])
oldBool=Screen(windowPtrOrScreenNumber,'Preference','InterruptPunchesBlankingClock',[psych_bool])
oldPriority=Screen(windowPtrOrScreenNumber,'Preference','MaxPriorityForBlankingInterrupt',[priority])
oldBool=Screen(windowPtrOrScreenNumber,'Preference','WaitBlankingAlwaysCallsSetClut',[psych_bool])
oldSecs=Screen(windowPtrOrScreenNumber,'Preference','BlankingDuration',[secs])
oldN=Screen(windowPtrOrScreenNumber,'Preference','MinimumEntriesForSetClutToWaitForBlanking',[n])
oldPriority=Screen(windowPtrOrScreenNumber,'Preference','MinimumSetClutPriority',[priority])
oldPriority=Screen(windowPtrOrScreenNumber,'Preference','MaximumSetClutPriority',[priority])
oldBool=Screen(windowPtrOrScreenNumber,'Preference','DipPriorityAfterSetClut',[psych_bool])
oldBool=Screen(windowPtrOrScreenNumber,'Preference','UsesHighGammaBits',[psych_bool])
*/
static char useString[] = "oldPreferenceValue = Screen('Preference', preferenceName, [newPreferenceValue])";
// 0 1 2
static char synopsisString[] =
"Get or set a Psychtoolbox preference."
"Preference settings are global - they affect all operations of a module until changed."
""
"\noldBool = Screen('Preference', 'IgnoreCase', [psych_bool]);"
"\ntick0Secs = Screen('Preference', 'Tick0Secs', tick0Secs);"
"\npsychTableVersion = Screen('Preference', 'PsychTableVersion');"
"\nmexFunctionName = Screen('Preference', 'PsychTableCreator');"
"\nproc = Screen('Preference', 'Process', signature);"
"\nproc = Screen('Preference', 'DebugMakeTexture', enableDebugging);"
"\noldEnableFlag = Screen('Preference', 'TextAlphaBlending', [enableFlag]);"
"\noldSize = Screen('Preference', 'DefaultFontSize', [fontSize]);"
"\noldStyleFlag = Screen('Preference', 'DefaultFontStyle', [styleFlag]);"
"\noldfontName = Screen('Preference', 'DefaultFontName', [fontName]);"
"\noldEnableFlag = Screen('Preference', 'DefaultTextYPositionIsBaseline', [enableFlag]);"
"\noldEnableFlag = Screen('Preference', 'TextAntiAliasing', [enableFlag=-1 (System setting), 0 = Disable, 1 = Enable, 2 = EnableHighQuality]);"
"\noldEnableFlag = Screen('Preference', 'TextRenderer', [enableFlag=0 (Legacy OS-specific), 1 = HighQ OS-specific (Default), 2 = Linux renderer plugin]);"
"\noldLocaleNameString = Screen('Preference', 'TextEncodingLocale', [newLocalenNameString]);"
"\noldEnableFlag = Screen('Preference', 'SkipSyncTests', [enableFlag]);"
"\n[maxStddev, minSamples, maxDeviation, maxDuration] = Screen('Preference', 'SyncTestSettings' [, maxStddev=0.001 secs][, minSamples=50][, maxDeviation=0.1][, maxDuration=5 secs]);"
"\noldEnableFlag = Screen('Preference', 'FrameRectCorrection', [enableFlag=1]);"
"\noldLevel = Screen('Preference', 'VisualDebugLevel', level);"
"\n\nWorkaround flags to work around all kind of deficient drivers and hardware:\n"
"See 'help ConserveVRAMSettings' for settings and their effect.\n"
"\noldMode = Screen('Preference', 'ConserveVRAM', mode);"
"\n\nActivate compatibility mode: Try to behave like the old MacOS-9 Psychtoolbox:"
"\noldEnableFlag = Screen('Preference', 'EmulateOldPTB', [enableFlag]);\n"
"\noldEnableFlags = Screen('Preference', 'Enable3DGraphics', [enableFlags]);"
"\noldEnableFlag = Screen('Preference', 'SuppressAllWarnings', [enableFlag]);"
"\noldMode = Screen('Preference', 'VBLTimestampingMode', [newmode]);"
"\n[oldVTOTAL, oldmaxVTOTALFactor] = Screen('Preference', 'VBLEndlineOverride' [, newVTOTAL=auto][, maxVTOTALFactor=1.25]);"
"\noldMode = Screen('Preference', 'DefaultVideocaptureEngine', [newmode (0=Quicktime - unsupported, 1=LibDC1394-Firewire, 2=LibARVideo - unsupported, 3=GStreamer)]);"
"\noldMode = Screen('Preference', 'OverrideMultimediaEngine', [newmode (0=Legacy-Quicktime - unsupported, 1=GStreamer)]);"
"\noldLevel = Screen('Preference', 'WindowShieldingLevel', [newLevel (0 = Behind all other windows - 2000 = In front of all other windows, the default)]);"
"\nresiduals = Screen('Preference', 'SynchronizeDisplays', syncMethod [, screenId]);"
"\noldMappings = Screen('Preference', 'ScreenToHead', screenId [, newHeadId, newCrtcId][, rank=0]);"
"\noldLevel = Screen('Preference', 'Verbosity' [,level]);";
static char seeAlsoString[] = "";
#define kPsychNumUnsupportedMacVideoPreferences 14
static char *unsupportedMacVideoPreferenceNames[]={
"FixedClut"
"SetClutDriverWaitsForBlanking",
"AskSetClutDriverToWaitForBlanking",
"SetClutSAI SetClutCallsWaitBlanking",
"SetClutPunchesBlankingClock",
"InterruptPunchesBlankingClock",
"MaxPriorityForBlankingInterrupt",
"WaitBlankingAlwaysCallsSetClut",
"BlankingDuration",
"MinimumEntriesForSetClutToWaitForBlanking",
"MinimumSetClutPriority",
"MaximumSetClutPriority",
"DipPriorityAfterSetClut",
"UsesHighGammaBits"
};
#define kPsychNumUnsupportedMacNonVideoPreferences 6
static char *unsupportedMacNonVideoPreferenceNames[]={
"AllowMirroring",
"MirroringIsOn",
"DacBits",
"Available",
"NextProcess",
"UseNewHideMenuBar"
};
PsychError SCREENPreference(void)
{
PsychArgFormatType arg1Type;
char *preferenceName, *newFontName;
const char *tableCreator, *oldDefaultFontName;
psych_bool preferenceNameArgumentValid, booleanInput, ignoreCase, tempFlag, textAlphaBlendingFlag, suppressAllWarningsFlag;
int numInputArgs, i, newFontStyleNumber, newFontSize, tempInt, tempInt2, tempInt3, tempInt4;
double returnDoubleValue, inputDoubleValue;
double maxStddev, maxDeviation, maxDuration;
int minSamples;
double *dheads = NULL;
//all sub functions should have these two lines
PsychPushHelp(useString, synopsisString,seeAlsoString);
if(PsychIsGiveHelp()){PsychGiveHelp();return(PsychError_none);};
//check for superfluous or missing arguments
PsychErrorExit(PsychCapNumInputArgs(5));
PsychErrorExit(PsychRequireNumInputArgs(1));
PsychErrorExit(PsychCapNumOutputArgs(4));
numInputArgs=PsychGetNumInputArgs();
arg1Type=PsychGetArgType(1);
preferenceNameArgumentValid=FALSE;
//Cases which require both a window pointer or screen number and preference name. Argument 1 is the wposn and argument 2 is the preference name.
if( numInputArgs >= 2 && (PsychIsScreenNumberArg(1) || PsychIsScreenNumberArg(1)) && PsychGetArgType(2)==PsychArgType_char ){
PsychAllocInCharArg(2, kPsychArgRequired, &preferenceName);
//preferences which require window pointer or screen number argument which we DO NOT support
for(i = 0; i < kPsychNumUnsupportedMacVideoPreferences; i++) {
if(PsychMatch(preferenceName, unsupportedMacVideoPreferenceNames[i])) {
PsychErrorExit(PsychError_unsupportedOS9Preference);
return(PsychError_unsupportedOS9Preference);
}
}
//insert here conditionals to act on prefernces which accept a window pointer or screen number argument which we DO support.
PsychErrorExit(PsychError_unrecognizedPreferenceName);
}
//Cases which do not require a wposn. Argument 1 is the preference name. if present Argument 2 is the new value
if(arg1Type==PsychArgType_char){
PsychAllocInCharArg(1, kPsychArgRequired, &preferenceName);
//Preferernces which we do not support and which do not require a wposn
for(i=0;i<kPsychNumUnsupportedMacNonVideoPreferences;i++){
if(PsychMatch(preferenceName, unsupportedMacNonVideoPreferenceNames[i]))
PsychErrorExit(PsychError_unsupportedOS9Preference);
}
//Preferences which we do support
if(PsychMatch(preferenceName, "IgnoreCase")){
ignoreCase=!PsychIsPsychMatchCaseSensitive();
PsychCopyOutFlagArg(1, kPsychArgOptional, ignoreCase);
if(numInputArgs==2){
PsychCopyInFlagArg(2, kPsychArgRequired, &booleanInput);
PsychSetPsychMatchCaseSenstive(!booleanInput);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "Tick0Secs")){
if(PsychCopyInDoubleArg(2, kPsychArgOptional, &inputDoubleValue) && inputDoubleValue==PsychGetNanValue())
PsychEstimateGetSecsValueAtTickCountZero();
returnDoubleValue=PsychGetEstimatedSecsValueAtTickCountZero();
PsychCopyOutDoubleArg(1, kPsychArgOptional, returnDoubleValue);
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "PsychTableVersion")){
if(numInputArgs==2)
PsychErrorExit(PsychError_extraInputArg);
PsychCopyOutDoubleArg(1, kPsychArgOptional, (double)PsychPrefStateGet_PsychTableVersion());
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "PsychTableCreator")){
if(numInputArgs==2)
PsychErrorExit(PsychError_extraInputArg);
tableCreator=PsychPrefStateGet_PsychTableCreator();
PsychCopyOutCharArg(1, kPsychArgOptional, tableCreator);
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "Process")){
if(numInputArgs==2)
PsychErrorExit(PsychError_extraInputArg);
PsychCopyOutDoubleArg(1, kPsychArgOptional, (double) (psych_int64) getpid());
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "DefaultFontName")){
PsychPrefStateGet_DefaultFontName(&oldDefaultFontName);
PsychCopyOutCharArg(1, kPsychArgOptional, oldDefaultFontName);
if(numInputArgs==2){
PsychAllocInCharArg(2, kPsychArgRequired, &newFontName);
PsychPrefStateSet_DefaultFontName(newFontName);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "TextEncodingLocale")){
PsychCopyOutCharArg(1, kPsychArgOptional, PsychGetUnicodeTextConversionLocale());
if(numInputArgs==2){
PsychAllocInCharArg(2, kPsychArgRequired, &newFontName);
if (!PsychSetUnicodeTextConversionLocale(newFontName)) PsychErrorExitMsg(PsychError_user, "Setting the 'TextEncodingLocale' failed, most likely because you provided an invalid/unknown locale setting string.");
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "DefaultFontStyle")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_DefaultTextStyle());
if(numInputArgs==2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &newFontStyleNumber);
PsychPrefStateSet_DefaultTextStyle(newFontStyleNumber);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "OverrideMultimediaEngine")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_UseGStreamer());
if(numInputArgs==2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
PsychPrefStateSet_UseGStreamer(tempInt);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "DefaultTextYPositionIsBaseline")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_TextYPositionIsBaseline());
if(numInputArgs==2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
PsychPrefStateSet_TextYPositionIsBaseline(tempInt);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "TextAntiAliasing")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_TextAntiAliasing());
if(numInputArgs==2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
PsychPrefStateSet_TextAntiAliasing(tempInt);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "TextRenderer")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_TextRenderer());
if(numInputArgs==2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
PsychPrefStateSet_TextRenderer(tempInt);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "DefaultFontSize")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_DefaultTextSize());
if(numInputArgs==2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &newFontSize);
PsychPrefStateSet_DefaultTextSize(newFontSize);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "DebugMakeTexture")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_DebugMakeTexture());
if(numInputArgs==2){
PsychCopyInFlagArg(2, kPsychArgRequired, &tempFlag);
PsychPrefStateSet_DebugMakeTexture(tempFlag);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "SkipSyncTests")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_SkipSyncTests());
if(numInputArgs==2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
PsychPrefStateSet_SkipSyncTests(tempInt);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "VisualDebugLevel")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_VisualDebugLevel());
if(numInputArgs==2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
PsychPrefStateSet_VisualDebugLevel(tempInt);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "VBLTimestampingMode")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_VBLTimestampingMode());
if(numInputArgs>=2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
PsychPrefStateSet_VBLTimestampingMode(tempInt);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "SyncTestSettings")){
PsychPrefStateGet_SynctestThresholds(&maxStddev, &minSamples, &maxDeviation, &maxDuration);
PsychCopyOutDoubleArg(1, kPsychArgOptional, maxStddev);
PsychCopyOutDoubleArg(2, kPsychArgOptional, minSamples);
PsychCopyOutDoubleArg(3, kPsychArgOptional, maxDeviation);
PsychCopyOutDoubleArg(4, kPsychArgOptional, maxDuration);
if(numInputArgs>=2){
PsychCopyInDoubleArg( 2, kPsychArgOptional, &maxStddev);
PsychCopyInIntegerArg(3, kPsychArgOptional, &minSamples);
PsychCopyInDoubleArg( 4, kPsychArgOptional, &maxDeviation);
PsychCopyInDoubleArg( 5, kPsychArgOptional, &maxDuration);
PsychPrefStateSet_SynctestThresholds(maxStddev, minSamples, maxDeviation, maxDuration);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "VBLEndlineOverride")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_VBLEndlineOverride());
PsychCopyOutDoubleArg(2, kPsychArgOptional, PsychPrefStateGet_VBLEndlineMaxFactor());
if (PsychCopyInIntegerArg(2, kPsychArgOptional, &tempInt)) {
PsychPrefStateSet_VBLEndlineOverride(tempInt);
}
if (PsychCopyInDoubleArg(3, kPsychArgOptional, &inputDoubleValue)) {
PsychPrefStateSet_VBLEndlineMaxFactor(inputDoubleValue);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "DefaultVideocaptureEngine")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_VideoCaptureEngine());
if(numInputArgs==2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
PsychPrefStateSet_VideoCaptureEngine(tempInt);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "WindowShieldingLevel")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_WindowShieldingLevel());
if(numInputArgs==2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
PsychPrefStateSet_WindowShieldingLevel(tempInt);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "ConserveVRAM") || PsychMatch(preferenceName, "Workarounds1")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_ConserveVRAM());
if(numInputArgs==2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
PsychPrefStateSet_ConserveVRAM(tempInt);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "Verbosity")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_Verbosity());
if(numInputArgs==2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
PsychPrefStateSet_Verbosity(tempInt);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "FrameRectCorrection")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_FrameRectCorrection());
if(numInputArgs==2){
PsychCopyInDoubleArg(2, kPsychArgRequired, &inputDoubleValue);
PsychPrefStateSet_FrameRectCorrection(inputDoubleValue);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "EmulateOldPTB")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_EmulateOldPTB());
if(numInputArgs==2){
PsychCopyInFlagArg(2, kPsychArgRequired, &tempFlag);
PsychPrefStateSet_EmulateOldPTB(tempFlag);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "Enable3DGraphics")){
PsychCopyOutDoubleArg(1, kPsychArgOptional, PsychPrefStateGet_3DGfx());
if(numInputArgs==2){
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
PsychPrefStateSet_3DGfx(tempInt);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "TextAlphaBlending")){
textAlphaBlendingFlag=PsychPrefStateGet_TextAlphaBlending();
PsychCopyOutFlagArg(1, kPsychArgOptional, textAlphaBlendingFlag);
if(numInputArgs==2){
PsychCopyInFlagArg(2, kPsychArgRequired, &booleanInput);
PsychPrefStateSet_TextAlphaBlending(booleanInput);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "SuppressAllWarnings")){
suppressAllWarningsFlag=PsychPrefStateGet_SuppressAllWarnings();
PsychCopyOutFlagArg(1, kPsychArgOptional, suppressAllWarningsFlag);
if(numInputArgs==2){
PsychCopyInFlagArg(2, kPsychArgRequired, &booleanInput);
PsychPrefStateSet_SuppressAllWarnings(booleanInput);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "SynchronizeDisplays")){
if(numInputArgs >= 2) {
// This is a special call: It currently doesn't set a preference setting,
// but instead triggers an instantaneous synchronization of all available
// display heads, if possible. We may have a more clever and "standard" interface
// interface for this later on, but for first tests this will do.
// Syncmethod is hard-coded to 0 -> Use whatever's available to sync.
// timeout for retries is 5.0 seconds.
// Acceptable residual offset is +/- 2 scanlines.
// Returns the real residual offset after sync.
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
if (!PsychCopyInIntegerArg(3, kPsychArgOptional, &tempInt3)) {
// No screenId specified: Resync default screen or whatever...
tempInt2 = 0;
if (PsychSynchronizeDisplayScreens(&tempInt2, NULL, &tempInt, tempInt, 5.0, 2)!=PsychError_none) PsychErrorExitMsg(PsychError_user, "Sync failed for reasons mentioned above.");
} else {
// Specific screenId provided: Resync crtc's associated with this screenId if possible:
tempInt2 = 1;
if (PsychSynchronizeDisplayScreens(&tempInt2, &tempInt3, &tempInt, tempInt, 5.0, 2)!=PsychError_none) PsychErrorExitMsg(PsychError_user, "Sync failed for reasons mentioned above.");
}
PsychCopyOutDoubleArg(1, kPsychArgOptional, tempInt);
}
preferenceNameArgumentValid=TRUE;
}else
if(PsychMatch(preferenceName, "ScreenToHead")){
// screenId is required:
PsychCopyInIntegerArg(2, kPsychArgRequired, &tempInt);
if (tempInt < 0 || tempInt >= PsychGetNumDisplays() || tempInt >= kPsychMaxPossibleDisplays) PsychErrorExitMsg(PsychError_user, "Invalid screenId provided. Out of valid range!");
// Return old mappings for this screenId:
for (tempInt2 = 0; (tempInt2 < kPsychMaxPossibleCrtcs) && (PsychPrefStateGet_ScreenToHead(tempInt, tempInt2) >= 0); tempInt2++);
PsychAllocOutDoubleMatArg(1, kPsychArgOptional, 2, tempInt2, 1, &dheads);
tempInt4 = 0;
for (tempInt3 = 0; tempInt3 < tempInt2; tempInt3++) {
dheads[tempInt4++] = (double) PsychPrefStateGet_ScreenToHead(tempInt, tempInt3);
dheads[tempInt4++] = (double) PsychPrefStateGet_ScreenToCrtcId(tempInt, tempInt3);
}
// Optionally retrieve and set new mappings for this screenId:
if(numInputArgs>=3) {
// Set new headId for screenId:
PsychCopyInIntegerArg(3, kPsychArgRequired, &tempInt2);
if (tempInt2 < 0) PsychErrorExitMsg(PsychError_user, "Invalid negative headId provided!");
// Set new crtcId for screenId:
PsychCopyInIntegerArg(4, kPsychArgRequired, &tempInt3);
if (tempInt3 < 0) PsychErrorExitMsg(PsychError_user, "Invalid negative crtcId provided!");
// Assign primary head by default (index 0), but allow optionally others as well:
tempInt4 = 0;
PsychCopyInIntegerArg(5, kPsychArgOptional, &tempInt4);
if (tempInt4 < 0 || tempInt4 >= kPsychMaxPossibleCrtcs) PsychErrorExitMsg(PsychError_user, "Invalid rankId provided! Too many heads for one screen!");
PsychPrefStateSet_ScreenToHead(tempInt, tempInt2, tempInt3, tempInt4);
}
preferenceNameArgumentValid=TRUE;
}else
PsychErrorExit(PsychError_unrecognizedPreferenceName);
}
if(!preferenceNameArgumentValid)
PsychErrorExitMsg(PsychError_user, "Invalid arguments to preferences command");
return(PsychError_none);
}
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