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/* Copyright (c) 2001, Stanford University
* All rights reserved
*
* See the file LICENSE.txt for information on redistributing this software.
*/
#include "packer.h"
#include "cr_opcodes.h"
static GLboolean __handleFogData( GLenum pname, const GLfloat *params )
{
CR_GET_PACKER_CONTEXT(pc);
int params_length = 0;
int packet_length = sizeof( int ) + sizeof( pname );
unsigned char *data_ptr;
switch( pname )
{
case GL_FOG_MODE:
case GL_FOG_DENSITY:
case GL_FOG_START:
case GL_FOG_END:
case GL_FOG_INDEX:
params_length = sizeof( *params );
break;
case GL_FOG_COLOR:
params_length = 4*sizeof( *params );
break;
default:
params_length = __packFogParamsLength( pname );
if (!params_length)
{
char msg[100];
sprintf(msg, "Invalid pname in Fog: %d", (int) pname );
__PackError( __LINE__, __FILE__, GL_INVALID_ENUM, msg);
return GL_FALSE;
}
break;
}
packet_length += params_length;
CR_GET_BUFFERED_POINTER(pc, packet_length );
WRITE_DATA( 0, int, packet_length );
WRITE_DATA( 4, GLenum, pname );
WRITE_DATA( 8, GLfloat, params[0] );
if (packet_length > 12)
{
WRITE_DATA( 12, GLfloat, params[1] );
WRITE_DATA( 16, GLfloat, params[2] );
WRITE_DATA( 20, GLfloat, params[3] );
}
return GL_TRUE;
}
void PACK_APIENTRY crPackFogfv(GLenum pname, const GLfloat *params)
{
CR_GET_PACKER_CONTEXT(pc);
if (__handleFogData( pname, params ))
WRITE_OPCODE( pc, CR_FOGFV_OPCODE );
CR_UNLOCK_PACKER_CONTEXT(pc);
}
void PACK_APIENTRY crPackFogiv(GLenum pname, const GLint *params)
{
CR_GET_PACKER_CONTEXT(pc);
/* floats and ints are the same size, so the packing should be the same */
if (__handleFogData( pname, (const GLfloat *) params ))
WRITE_OPCODE( pc, CR_FOGIV_OPCODE );
CR_UNLOCK_PACKER_CONTEXT(pc);
}
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