//----------------------------------------------------------------------------------------------------
// Resize And Initialize The GL Window
GLvoid ResizeGLScreen(GLsizei width, GLsizei height)
{
// Prevent A Divide By Zero By
if (height==0)
{
height=1;
}
glViewport(0,0,width,height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
// Calculate The Aspect Ratio Of The Window
gluPerspective(45.0f,(GLfloat)width/(GLfloat)height,0.1f,100.0f);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
// Reset the renderer's screen size to the new size
_CrtRender.SetScreenWidth( width);
_CrtRender.SetScreenHeight( height);
}
//----------------------------------------------------------------------------------------------------
// Standard windows mainline, this is the program entry point
//
CrtInt32 WINAPI WinMain( HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
CrtInt32 nCmdShow)
{
(void)hPrevInstance; // Avoid warnings
(void)nCmdShow; // Avoid warnings
(void)hInstance; // Avoid warnings
#ifndef NO_DEVIL
ilInit();
#endif
MSG msg;
BOOL done=FALSE;
// Avoid warnings later
msg.wParam = 0;
// Turns on windows heap debugging
#if HEAP_DEBUG
_CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_CHECK_ALWAYS_DF | _CRTDBG_CHECK_CRT_DF /*| _CRTDBG_DELAY_FREE_MEM_DF*/);
#endif
// Ask The User Which Screen Mode They Prefer
// if (MessageBox(NULL,"Would You Like To Run In Fullscreen Mode?", "Start FullScreen?",MB_YESNO|MB_ICONQUESTION)==IDNO)
{
fullscreen=FALSE;
}
// Set the default screen size
_CrtRender.SetScreenWidth( 640);
_CrtRender.SetScreenHeight( 480);
// Create an OpenGL Window
if (!CreateGLWindow("Collada Viewer for PC", _CrtRender.GetScreenWidth(), _CrtRender.GetScreenHeight(),32,fullscreen))
{
return 0;
}
// Turn data dumping (debug) off
//CrtBool dumpData = CrtFalse;
// Initialize the renderer
// !!!GAC for compatibility with the new COLLADA_FX code, Init now forces UsingCg and UsingVBOs to
// !!!GAC false. It also calls CrtInitCg, creating the CG context and calling cgGLRegisterStates.
// !!!GAC All these things are currently required for the cfx rendering path to work, changing them
// !!!GAC may cause problems. This is work in progress and will be much cleaner when the refactor is done.
_CrtRender.Init();
//_CrtRender.SetRenderDebug( CrtTrue );
// !!!GAC kept for reference, changing these may cause problems with the cfx include path
//_CrtRender.SetUsingCg( CrtFalse );
// Turn off VBOs (the GL skinning path doesn't work with VBOs yet)
_CrtRender.SetUsingVBOs( CrtTrue );
_CrtRender.SetUsingNormalMaps( CrtTrue );
//_CrtRender.SetRenderDebug( CrtTrue );
//_CrtRender.SetUsingShadowMaps(CrtTrue);
// We might get a windows-style path on the command line, this can mess up the DOM which expects
// all paths to be URI's. This block of code does some conversion to try and make the input
// compliant without breaking the ability to accept a properly formatted URI. Right now this only
// displays the first filename
char
file[512],
*in = lpCmdLine,
*out = file;
*out = NULL;
// If the first character is a ", skip it (filenames with spaces in them are quoted)
if(*in == '\"')
{
in++;
}
if(*(in+1) == ':')
{
// Second character is a :, assume we have a path with a drive letter and add a slash at the beginning
*(out++) = '/';
}
int i;
for(i =0; i<512; i++)
{
// If we hit a null or a quote, stop copying. This will get just the first filename.
if(*in == NULL || *in == '\"')
break;
// Copy while swapping backslashes for forward ones
if(*in == '\\')
{
*out = '/';
}
else
{
*out = *in;
}
in++;
out++;
}
// Should throw an error if i>= 512, but we don't have error dialongs in the code yet so just let it try to load and fail
if(i < 511)
*out = NULL;
time_t seconds = time (NULL);
clock_t clocka = clock ();
cleaned_file_name = file;
// Load the file name provided on the command line
if ( !_CrtRender.Load( cleaned_file_name ))
{
exit(0);
}
time_t loadtime = time (NULL) - seconds;
int clockload = (int) clock () - clocka;
CrtPrint("\nLOAD TIME OF %s\n", file);
CrtPrint("IS %d SECONDS\n", loadtime);
CrtPrint("IS %d CLOCK TICKS\n\n", clockload);
// This block of code shows how to enumerate all the effects, get their parameters and then
// get their UI information.
#if 1
{
// Get the scene and setup to iterate over all the effects stored in the cfxLoader
CrtScene *scene = _CrtRender.GetScene();
std::map<std::string, cfxEffect*>::iterator effectIterator;
effectIterator = scene->cfxEffects.begin();
// Iterate over all the effects
while(effectIterator != scene->cfxEffects.end())
{
// This is the effect name you would use in a UI
CrtPrint("Effect name %s\n", effectIterator->first.c_str());
cfxEffect *thiscfxEffect = effectIterator->second;
CGeffect thisCGEffect = thiscfxEffect->getEffect();
CGparameter thisCGParameter = cgGetFirstEffectParameter(thisCGEffect);
while(thisCGParameter != NULL)
{
// This is the parameter name you would use in the UI
const char *parameterName = cgGetParameterName(thisCGParameter);
// This is for the example of how to tweek a parameter (doesn't work yet)
if(CrtCmp(parameterName, "Amplitude"))
{
// Capture the parameter and save it in a global, in a GUI you would
// save this handle in the widget so it would know what to tweek.
amplitudeGlobalParameter = thisCGParameter;
}
#if 0
// This is here for debugging, it iterates over all the annotations and prints them out
// so you can see what's in them. Normally this code will be turned off.
CrtPrint(" Parameter name %s\n",parameterName);
CGannotation dbgCGAnnotation = cgGetFirstParameterAnnotation(thisCGParameter);
while(dbgCGAnnotation != NULL)
{
const char *annotationName = cgGetAnnotationName(dbgCGAnnotation);
CrtPrint(" Annotation: %s",annotationName);
if(cgGetAnnotationType(dbgCGAnnotation) == CG_STRING)
{
const char *annotationString = cgGetStringAnnotationValue(dbgCGAnnotation);
CrtPrint(" value: %s\n",annotationString);
}
else if(cgGetAnnotationType(dbgCGAnnotation) == CG_FLOAT)
{
int nvalues;
const float *value = cgGetFloatAnnotationValues(dbgCGAnnotation, &nvalues);
CrtPrint(" value: %f\n",*value); // Assume there is one value
}
else
{
CrtPrint("\n");
}
dbgCGAnnotation = cgGetNextAnnotation(dbgCGAnnotation);
}
#endif
// This code looks at the parameter annotations to see if they specify some kind of UI
// cgGetNamedParameterAnnotation isn't used for this because it is case sensitive and at
// least some of the annotations FXcomposer uses for UI appear to NOT be case sensitive.
// This method should collect the parameter values regardless of case, but it has to scan
// ALL the parameters and do case-blind compares on each one, which is slower.
// This code currently only collects the annotation values for defining sliders and color pickers.
const char *UIName = "unknown";
const char *UIWidget = "unknown";
float UIMin = -99999.0f;
float UIMax = 99999.0f;
float UIStep = 0.0f;
int nvalues;
CGannotation thisCGAnnotation = cgGetFirstParameterAnnotation(thisCGParameter);
// Iterate over all the annotations
while(thisCGAnnotation != NULL)
{
// Get the name of this annotation
const char *annotationName = cgGetAnnotationName(thisCGAnnotation);
// Do case-blind compares to see if the annotation is one of the ones used to make UI
// and save the value if it is.
if(CrtICmp("UIWidget",annotationName))
{
// This is the widget type
UIWidget = cgGetStringAnnotationValue(thisCGAnnotation);
}
if(CrtICmp("UIName",annotationName))
{
// This is the name to attach to the widget
UIName = cgGetStringAnnotationValue(thisCGAnnotation);
}
if(CrtICmp("UIMin",annotationName))
{
// This is the minimum value for a slider widget
const float *value = cgGetFloatAnnotationValues(thisCGAnnotation, &nvalues);
if(nvalues == 1)
UIMin = *value;
}
if(CrtICmp("UIMax",annotationName))
{
// This is the maximum value for a slider widget
const float *value = cgGetFloatAnnotationValues(thisCGAnnotation, &nvalues);
if(nvalues == 1)
UIMax = *value;
}
if(CrtICmp("UIStep",annotationName))
{
// This is the step (minimum change) for a slider widget
const float *value = cgGetFloatAnnotationValues(thisCGAnnotation, &nvalues);
if(nvalues == 1)
UIStep = *value;
}
// Get the next annotation
thisCGAnnotation = cgGetNextAnnotation(thisCGAnnotation);
}
// Is the UIWidget a type that we recognize? (just slider and color picker for now)
// Replace the CrtPrint with the code that generates the UI, remember the UI needs to
// store thisCGParameter someplace so it can use it to change the parameter later.
if(CrtICmp("slider", UIWidget))
{
CrtPrint("Parameter %s needs a slider named %s going from %f to %f with step %f\n",parameterName,UIName,UIMin,UIMax, UIStep );
}
if(CrtICmp("color", UIWidget))
{
CrtPrint("Parameter %s needs a color picker named %s\n",parameterName,UIName);
}
// Move on to the next parameter
thisCGParameter = cgGetNextParameter(thisCGParameter);
}
// Move on to the next effect
effectIterator++;
}
}
#endif
while(!done)
{
if (PeekMessage(&msg,NULL,0,0,PM_REMOVE))
{
if (msg.message==WM_QUIT)
{
done=TRUE;
}
else
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
}
else
{
// Draw The Scene. Watch For ESC Key And Quit Messages From DrawGLScene()
if ((active && !DrawGLScene()) || keys[VK_ESCAPE]) // Active? Was There A Quit Received?
{
done=TRUE;
}
else
{
SwapBuffers(hDC);
ProcessInput( keys );
}
}
}
_CrtRender.Destroy();
// Shutdown
#ifndef NO_DEVIL
ilShutDown();
#endif
DestroyGLWindow();
return (int)(msg.wParam);
}
