/*-------------------------------------------------------------------------
-------------------------------------------------------------------------*/
bool FilterBox::Initialize(int w, int h)
{
bufw = w;
bufh = h;
//
// FBO
//
glGenFramebuffersEXT(2, fb);
glGenTextures(2, textureID);
glGenRenderbuffersEXT(1, &depth_rb);
initRT(0, w, h);
initRT(1, w, h);
//
// initialize depth renderbuffer
//
glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, depth_rb);
glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, GL_DEPTH_COMPONENT24, w, h);
glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT, GL_DEPTH_ATTACHMENT_EXT,
GL_RENDERBUFFER_EXT, depth_rb);
CheckFramebufferStatus();
glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);
//
// CGFX things
//
cgContext = cgCreateContext();
cgGLRegisterStates(cgContext);
std::string resolved_path;
cgEffect = cgCreateEffectFromFile(cgContext, "data/shaders/FilterBox.cgfx", NULL);
if(!cgEffect)
{
exit(0);
const char * pszErrors = NULL;
fprintf(stderr, "CgFx Parse error : %s", pszErrors);
const char *listing = cgGetLastListing(cgContext);
bValid = false;
return false;
}
cgTechnique = cgGetNamedTechnique(cgEffect, "Filter");
cgPassFilterH = cgGetNamedPass(cgTechnique, "verticalPass");
cgPassFilterV = cgGetNamedPass(cgTechnique, "horizontalPass");
cgPassBlend = cgGetNamedPass(cgTechnique, "drawFinal");
cgBlendFactor = cgGetNamedEffectParameter(cgEffect, "blendFactor");
cgGlowFactor = cgGetNamedEffectParameter(cgEffect, "glowFactor");
srcSampler = cgGetNamedEffectParameter(cgEffect, "srcSampler");
tempSampler = cgGetNamedEffectParameter(cgEffect, "tempSampler");
finalSampler = cgGetNamedEffectParameter(cgEffect, "finalSampler");
verticalDir = cgGetNamedEffectParameter(cgEffect, "verticalDir");
horizontalDir = cgGetNamedEffectParameter(cgEffect, "horizontalDir");
cgGLSetParameter2f(verticalDir, 0,1.0f/(float)h);
cgGLSetParameter2f(horizontalDir, 1.0f/(float)w, 0);
bValid = true;
return true;
}
void CgfxRenderPassChunk::activate (DrawEnv *pEnv,
UInt32 index)
{
updateGLMatricies(pEnv);
if(!_mPass)_mPass = cgGetNamedPass(_mTechnique,_mName.c_str());
if(_mPass) cgSetPassState(_mPass);
}
void Effect::load( const char *_name ) {
pass = cgGetNamedPass( techniques, _name );
}
