/*!
	\file
	\ingroup
	\author
	\brief
	\date    2001
*/


#include "TinyGL/gl_zgl.h"
#include <stdio.h>


void glGetIntegerv( GLenum pname, GLint *params ){
	GLContext *c = gl_get_context();

	switch(pname){
	case GL_VIEWPORT:
		params[0]=c->viewport.xmin;
		params[1]=c->viewport.ymin;
		params[2]=c->viewport.xsize;
		params[3]=c->viewport.ysize;
		break;
	case GL_MAX_MODELVIEW_STACK_DEPTH:
		*params = MAX_MODELVIEW_STACK_DEPTH;
		break;
	case GL_MAX_PROJECTION_STACK_DEPTH:
		*params = MAX_PROJECTION_STACK_DEPTH;
		break;
	case GL_MAX_LIGHTS:
		*params = MAX_LIGHTS;
		break;
	case GL_MAX_TEXTURE_SIZE:
		*params = 256; /* not completely true, but... */
		break;
	case GL_MAX_TEXTURE_STACK_DEPTH:
		*params = MAX_TEXTURE_STACK_DEPTH;
		break;
	default:
		gl_fatal_error("glGet: option not implemented");
		break;
	}
}

void glGetFloatv( GLenum pname, float *v ){
	int        i;
	int        mnr = 0; /* just a trick to return the correct matrix */
	GLContext *c   = gl_get_context();

	switch( pname ){
	case GL_TEXTURE_MATRIX:
		mnr++; 
	case GL_PROJECTION_MATRIX:
		mnr++; 
	case GL_MODELVIEW_MATRIX:
		{
			float *p = &c->matrix_stack_ptr[mnr]->m[0][0];;
			for (i = 0; i < 4; i++) {
				*v++ = p[0];
				*v++ = p[4];
				*v++ = p[8];
				*v++ = p[12];
				p++;
			}
		} 
		break;
	case GL_LINE_WIDTH:
		*v = 1.0f;
		break;
	case GL_LINE_WIDTH_RANGE:
		v[0] = v[1] = 1.0f;
		break;
	case GL_POINT_SIZE:
		*v = 1.0f;
		break;
	case GL_POINT_SIZE_RANGE:
		v[0] = v[1] = 1.0f;
	default:
#if defined( _DEBUG )
		fprintf( stderr, "warning: unknown pname in glGetFloatv()\n" );
#endif
	break;
  }
}