void glPrintInfo ( GsOutput* out )
{
GsOutput& o = out? *out:std::cout;
const char* end = "\"\n";
o << " Vendor: " << "\"" << (char*) glGetString (GL_VENDOR) << end;
o << "Renderer: " << "\"" << (char*) glGetString (GL_RENDERER) << end;
o << " OpenGL: " << glVersion() << ", \""<< (const char*)glGetString(GL_VERSION) << end;
o << " GLSL: " << glslVersion() << ", \""<< (const char*)glGetString(GL_SHADING_LANGUAGE_VERSION) << end;
}
void GLWindow::initializeGL()
{
mInitialized = true;
if( checkGLError() ) LOG_TRACE
// Set up the rendering context, define display lists etc.:
glClearColor( 8/256.0, 5/256.0, 76/256.0, 0.0 );
glDisable(GL_DEPTH_TEST);
if( checkGLError() ) LOG_TRACE
#ifdef COMPILE_CG
if( mUseCG && cgGLIsProfileSupported( CG_PROFILE_FP20 ) ){
//LOG_3("Using Cg");
// This is the most basic fragment profile, should run on quite a few cards
cgFragmentProfile = CG_PROFILE_FP20;
cgSetErrorCallback(cgErrorCallback);
cgContext = cgCreateContext();
// TODO: Include the shader source in the executable
cgProgram = cgCreateProgram( cgContext, CG_SOURCE, FRAGMENT_SHADER, cgFragmentProfile, 0, 0);
cgGLLoadProgram( cgProgram );
cgImageParam = cgGetNamedParameter( cgProgram, "image" );
cgColorClampParam = cgGetNamedParameter( cgProgram, "colorClamp" );
cgGLBindProgram( cgProgram );
}else
#endif
{
//LOG_3("Using stock OpenGL");
mUseCG = false;
}
// GL_TEXTURE_ENV_MODE defaults to GL_MODULATE
// GL_TEXTURE_ENV_COLOR defaults to (0,0,0,0)
#ifdef GL_NV_texture_rectangle
mUseGL_NV_texture_rectangle = isExtensionSupported( "GL_NV_texture_rectangle" );
if( checkGLError() ) LOG_TRACE
#endif // GL_NV_texture_rectangle
#ifdef GL_NV_texture_rectangle
if( mUseGL_NV_texture_rectangle ){
//LOG_5( "Using GL_TEXTURE_RECTANGLE_NV" );
mTextureMode = GL_TEXTURE_RECTANGLE_NV;
// Only try to use cg, if texture_rectangle is supported
// 4/23/04 WHY?
mUseCG = true;
} else
#endif // GL_NV_texture_rectangle
{
//qWarning("NOT USING GL_TEXTURE_RECTANGLE_NV");
mTextureMode = GL_TEXTURE_2D;
// Set up the texturing params
GLint wrapMode = GL_CLAMP;
int glMajor, glMinor;
glVersion(glMajor,glMinor);
if( glMajor >= 1 && glMinor >=2 )
wrapMode = GL_CLAMP_TO_EDGE;
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_S, wrapMode);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_WRAP_T, wrapMode);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER, GL_LINEAR);
}
}
