pack_materials.c revision a0d1e40cc56a54314af0a1a4b5e13905ffd78393
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster/* Copyright (c) 2001, Stanford University
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster * All rights reserved
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster *
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster * See the file LICENSE.txt for information on redistributing this software.
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster */
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster#include "packer.h"
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster#include "cr_error.h"
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Fosterstatic void __handleMaterialData( GLenum face, GLenum pname, const GLfloat *params )
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster{
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster GET_PACKER_CONTEXT(pc);
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster unsigned int packet_length = sizeof( int ) + sizeof( face ) + sizeof( pname );
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster unsigned int params_length = 0;
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster unsigned char *data_ptr;
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster switch( pname )
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster {
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster case GL_AMBIENT:
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster case GL_DIFFUSE:
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster case GL_SPECULAR:
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster case GL_EMISSION:
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster case GL_AMBIENT_AND_DIFFUSE:
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster params_length = 4*sizeof( *params );
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster break;
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster case GL_COLOR_INDEXES:
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster params_length = 3*sizeof( *params );
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster break;
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster case GL_SHININESS:
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster params_length = sizeof( *params );
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster break;
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster default:
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster __PackError(__LINE__, __FILE__, GL_INVALID_ENUM, "glMaterial(pname)");
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster return;
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster }
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster packet_length += params_length;
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster GET_BUFFERED_POINTER(pc, packet_length );
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster WRITE_DATA( 0, int, packet_length );
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster WRITE_DATA( sizeof( int ) + 0, GLenum, face );
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster WRITE_DATA( sizeof( int ) + 4, GLenum, pname );
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster WRITE_DATA( sizeof( int ) + 8, GLfloat, params[0] );
4fe4e4f798a84a46e567f64ceadd3648eb0582d4Allan Foster if (params_length > sizeof( *params ))
{
WRITE_DATA( sizeof( int ) + 12, GLfloat, params[1] );
WRITE_DATA( sizeof( int ) + 16, GLfloat, params[2] );
}
if (packet_length > 3*sizeof( *params ) )
{
WRITE_DATA( sizeof( int ) + 20, GLfloat, params[3] );
}
}
void PACK_APIENTRY crPackMaterialfv(GLenum face, GLenum pname, const GLfloat *params)
{
GET_PACKER_CONTEXT(pc);
__handleMaterialData( face, pname, params );
WRITE_OPCODE( pc, CR_MATERIALFV_OPCODE );
}
void PACK_APIENTRY crPackMaterialiv(GLenum face, GLenum pname, const GLint *params)
{
/* floats and ints are the same size, so the packing should be the same */
GET_PACKER_CONTEXT(pc);
__handleMaterialData( face, pname, (const GLfloat *) params );
WRITE_OPCODE( pc, CR_MATERIALIV_OPCODE );
}