OpenGL/packer/pack_pixelmap.c

	pack_pixelmap.c revision 67aa9dbb38bab2fcc7851b02546d7237be407d27
/* Copyright (c) 2001, Stanford University
 * All rights reserved
 *
 * See the file LICENSE.txt for information on redistributing this software.
 */

#include "packer.h"
#include "cr_mem.h"

static unsigned char * __gl_HandlePixelMapData(GLenum map, GLsizei mapsize, int size_of_value, const GLvoid *values)
{
    int packet_length =
        sizeof( map ) +
        sizeof( mapsize ) +
        mapsize*size_of_value;
    unsigned char *data_ptr = (unsigned char *) crPackAlloc( packet_length );

    WRITE_DATA( 0, GLenum, map );
    WRITE_DATA( 4, GLsizei, mapsize );
    crMemcpy( data_ptr + 8, values, mapsize*size_of_value );
    return data_ptr;
}

void PACK_APIENTRY crPackPixelMapfv(GLenum map, GLsizei mapsize,
                                    const GLfloat *values)
{
    unsigned char *data_ptr = __gl_HandlePixelMapData( map, mapsize, sizeof( *values ), values );

    crHugePacket( CR_PIXELMAPFV_OPCODE, data_ptr );
    crPackFree( data_ptr );
}

void PACK_APIENTRY crPackPixelMapuiv(GLenum map, GLsizei mapsize,
                                     const GLuint *values)
{
    unsigned char *data_ptr = __gl_HandlePixelMapData( map, mapsize, sizeof( *values ), values );

    crHugePacket( CR_PIXELMAPUIV_OPCODE, data_ptr );
    crPackFree( data_ptr );
}

void PACK_APIENTRY crPackPixelMapusv(GLenum map, GLsizei mapsize,
                                     const GLushort *values)
{
    unsigned char *data_ptr = __gl_HandlePixelMapData( map, mapsize, sizeof( *values ), values );

    crHugePacket( CR_PIXELMAPUSV_OPCODE, data_ptr );
    crPackFree( data_ptr );
}