OGLLookup.cpp revision 4604ab7d38c2bd2dfc255aa1facffdf81c1c9153
/** @file
*
* VirtualBox Windows NT/2000/XP guest OpenGL ICD
*
* Parameter size helpers
*
* Copyright (C) 2006-2007 Sun Microsystems, Inc.
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* General Public License (GPL) as published by the Free Software
* Foundation, in version 2 as it comes in the "COPYING" file of the
* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
#include "VBoxOGL.h"
/* DataType */
{
/* GL_BYTE */ sizeof(GLbyte),
/* GL_UNSIGNED_BYTE */ sizeof(GLubyte),
/* GL_SHORT */ sizeof(GLshort),
/* GL_UNSIGNED_SHORT */ sizeof(GLushort),
/* GL_INT */ sizeof(GLint),
/* GL_UNSIGNED_INT */ sizeof(GLuint),
/* GL_FLOAT */ sizeof(GLfloat),
/* GL_2_BYTES */ 2,
/* GL_3_BYTES */ 3,
/* GL_4_BYTES */ 4,
/* GL_DOUBLE */ sizeof(GLdouble),
};
/**
* Query the size of the specified data type
*
* @returns type size or 0 if unknown type
* @param type data type
*/
{
{
return 0;
}
}
/**
* Query the specified cached parameter
*
* @returns requested cached value
* @param type Parameter type (Note: minimal checks only!)
*/
{
AssertFailed();
return 0;
}
/**
* Query the specified cached texture level parameter
*
* @returns requested cached value
* @param type Parameter type (Note: minimal checks only!)
*/
{
AssertFailed();
return 0;
}
{
switch (pname)
{
case GL_AMBIENT:
case GL_DIFFUSE:
case GL_SPECULAR:
case GL_POSITION:
return 4;
case GL_SPOT_DIRECTION:
return 3;
case GL_SPOT_EXPONENT:
case GL_SPOT_CUTOFF:
case GL_CONSTANT_ATTENUATION:
case GL_LINEAR_ATTENUATION:
case GL_QUADRATIC_ATTENUATION:
return 1;
default:
return 0;
}
}
{
switch (pname)
{
case GL_AMBIENT:
case GL_DIFFUSE:
case GL_SPECULAR:
case GL_EMISSION:
case GL_AMBIENT_AND_DIFFUSE:
return 4;
case GL_SHININESS:
return 1;
case GL_COLOR_INDEXES:
return 3;
default:
return 0;
}
}
{
switch (pname)
{
case GL_TEXTURE_ENV_MODE:
return 1;
case GL_TEXTURE_ENV_COLOR:
return 4;
default:
return 0;
}
}
{
switch (pname)
{
case GL_TEXTURE_GEN_MODE:
return 1;
case GL_OBJECT_PLANE:
case GL_EYE_PLANE:
return 4;
default:
return 0;
}
}
{
switch (pname)
{
case GL_TEXTURE_MAG_FILTER:
case GL_TEXTURE_MIN_FILTER:
case GL_TEXTURE_WRAP_S:
case GL_TEXTURE_WRAP_T:
case GL_TEXTURE_PRIORITY:
return 1;
case GL_TEXTURE_BORDER_COLOR:
return 4;
default:
return 0;
}
}
/**
* Query the number of bytes required for a pixel in the specified format
*
* @returns requested pixel size
* @param type Parameter type
*/
{
switch (format)
{
case GL_COLOR_INDEX:
case GL_STENCIL_INDEX:
case GL_DEPTH_COMPONENT:
case GL_RED:
case GL_GREEN:
case GL_BLUE:
case GL_ALPHA:
case GL_LUMINANCE:
case GL_LUMINANCE_ALPHA:
return 1;
case GL_RGB:
case GL_BGR_EXT:
return 3;
case GL_RGBA:
case GL_BGRA_EXT:
return 4;
default:
return 0;
}
}