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/* $XFree86: xc/lib/GL/glx/compsize.c,v 1.2 1999/06/14 07:23:34 dawes Exp $ */
/*
** The contents of this file are subject to the GLX Public License Version 1.0
** (the "License"). You may not use this file except in compliance with the
** License. You may obtain a copy of the License at Silicon Graphics, Inc.,
** attn: Legal Services, 2011 N. Shoreline Blvd., Mountain View, CA 94043
** or at http://www.sgi.com/software/opensource/glx/license.html.
**
** Software distributed under the License is distributed on an "AS IS"
** basis. ALL WARRANTIES ARE DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY
** IMPLIED WARRANTIES OF MERCHANTABILITY, OF FITNESS FOR A PARTICULAR
** PURPOSE OR OF NON- INFRINGEMENT. See the License for the specific
** language governing rights and limitations under the License.
**
** The Original Software is GLX version 1.2 source code, released February,
** 1999. The developer of the Original Software is Silicon Graphics, Inc.
** Those portions of the Subject Software created by Silicon Graphics, Inc.
** are Copyright (c) 1991-9 Silicon Graphics, Inc. All Rights Reserved.
**
** $SGI$
*/
#include <GL/gl.h>
#include "size.h"
GLint __glFogiv_size(GLenum pname)
{
switch (pname) {
case GL_FOG_COLOR: return 4;
case GL_FOG_DENSITY: return 1;
case GL_FOG_END: return 1;
case GL_FOG_MODE: return 1;
case GL_FOG_INDEX: return 1;
case GL_FOG_START: return 1;
default:
return 0;
}
}
GLint __glFogfv_size(GLenum pname)
{
return __glFogiv_size(pname);
}
GLint __glCallLists_size(GLsizei n, GLenum type)
{
GLint size;
if (n < 0) return 0;
switch (type) {
case GL_BYTE: size = 1; break;
case GL_UNSIGNED_BYTE: size = 1; break;
case GL_SHORT: size = 2; break;
case GL_UNSIGNED_SHORT: size = 2; break;
case GL_INT: size = 4; break;
case GL_UNSIGNED_INT: size = 4; break;
case GL_FLOAT: size = 4; break;
case GL_2_BYTES: size = 2; break;
case GL_3_BYTES: size = 3; break;
case GL_4_BYTES: size = 4; break;
default:
return 0;
}
return n * size;
}
GLint __glDrawPixels_size(GLenum format, GLenum type, GLsizei w, GLsizei h)
{
GLint elements, esize;
switch (format) {
case GL_COLOR_INDEX:
case GL_STENCIL_INDEX:
case GL_DEPTH_COMPONENT:
elements = 1;
break;
case GL_RED:
case GL_GREEN:
case GL_BLUE:
case GL_ALPHA:
case GL_LUMINANCE:
elements = 1;
break;
case GL_LUMINANCE_ALPHA:
elements = 2;
break;
case GL_RGB:
elements = 3;
break;
case GL_RGBA:
case GL_ABGR_EXT:
elements = 4;
break;
default:
return 0;
}
switch (type) {
case GL_BITMAP:
if (format == GL_COLOR_INDEX || format == GL_STENCIL_INDEX) {
return (h * ((w+7)/8));
} else {
return 0;
}
case GL_BYTE:
case GL_UNSIGNED_BYTE:
esize = 1;
break;
case GL_SHORT:
case GL_UNSIGNED_SHORT:
esize = 2;
break;
case GL_INT:
case GL_UNSIGNED_INT:
case GL_FLOAT:
esize = 4;
break;
default:
return 0;
}
return (elements * esize * w * h);
}
GLint __glBitmap_size(GLsizei w, GLsizei h)
{
return __glDrawPixels_size(GL_COLOR_INDEX, GL_BITMAP, w, h);
}
GLint __glTexGendv_size(GLenum e)
{
switch (e) {
case GL_TEXTURE_GEN_MODE:
return 1;
case GL_OBJECT_PLANE:
case GL_EYE_PLANE:
return 4;
default:
return 0;
}
}
GLint __glTexGenfv_size(GLenum e)
{
return __glTexGendv_size(e);
}
GLint __glTexGeniv_size(GLenum e)
{
return __glTexGendv_size(e);
}
GLint __glTexParameterfv_size(GLenum e)
{
switch (e) {
case GL_TEXTURE_WRAP_S:
case GL_TEXTURE_WRAP_T:
case GL_TEXTURE_MIN_FILTER:
case GL_TEXTURE_MAG_FILTER:
return 1;
case GL_TEXTURE_BORDER_COLOR:
return 4;
default:
return 0;
}
}
GLint __glTexParameteriv_size(GLenum e)
{
return __glTexParameterfv_size(e);
}
GLint __glTexEnvfv_size(GLenum e)
{
switch (e) {
case GL_TEXTURE_ENV_MODE:
return 1;
case GL_TEXTURE_ENV_COLOR:
return 4;
default:
return 0;
}
}
GLint __glTexEnviv_size(GLenum e)
{
return __glTexEnvfv_size(e);
}
GLint __glTexImage1D_size(GLenum format, GLenum type, GLsizei w)
{
GLint elements, esize;
if (w < 0) return 0;
switch (format) {
case GL_COLOR_INDEX:
elements = 1;
break;
case GL_RED:
case GL_GREEN:
case GL_BLUE:
case GL_ALPHA:
case GL_LUMINANCE:
elements = 1;
break;
case GL_LUMINANCE_ALPHA:
elements = 2;
break;
case GL_RGB:
elements = 3;
break;
case GL_RGBA:
case GL_ABGR_EXT:
elements = 4;
break;
default:
return 0;
}
switch (type) {
case GL_BITMAP:
if (format == GL_COLOR_INDEX) {
return (w+7)/8;
} else {
return 0;
}
case GL_BYTE:
case GL_UNSIGNED_BYTE:
esize = 1;
break;
case GL_SHORT:
case GL_UNSIGNED_SHORT:
esize = 2;
break;
case GL_INT:
case GL_UNSIGNED_INT:
case GL_FLOAT:
esize = 4;
break;
default:
return 0;
}
return (elements * esize * w);
}
GLint __glTexImage2D_size(GLenum format, GLenum type, GLsizei w, GLsizei h)
{
GLint elements, esize;
if (w < 0) return 0;
if (h < 0) return 0;
switch (format) {
case GL_COLOR_INDEX:
elements = 1;
break;
case GL_RED:
case GL_GREEN:
case GL_BLUE:
case GL_ALPHA:
case GL_LUMINANCE:
elements = 1;
break;
case GL_LUMINANCE_ALPHA:
elements = 2;
break;
case GL_RGB:
elements = 3;
break;
case GL_RGBA:
case GL_ABGR_EXT:
elements = 4;
break;
default:
return 0;
}
switch (type) {
case GL_BITMAP:
if (format == GL_COLOR_INDEX) {
return (h * ((w+7)/8));
} else {
return 0;
}
case GL_BYTE:
case GL_UNSIGNED_BYTE:
esize = 1;
break;
case GL_SHORT:
case GL_UNSIGNED_SHORT:
esize = 2;
break;
case GL_INT:
case GL_UNSIGNED_INT:
case GL_FLOAT:
esize = 4;
break;
default:
return 0;
}
return (elements * esize * w * h);
}
GLint __glLightfv_size(GLenum pname)
{
switch (pname) {
case GL_SPOT_EXPONENT: return 1;
case GL_SPOT_CUTOFF: return 1;
case GL_AMBIENT: return 4;
case GL_DIFFUSE: return 4;
case GL_SPECULAR: return 4;
case GL_POSITION: return 4;
case GL_SPOT_DIRECTION: return 3;
case GL_CONSTANT_ATTENUATION: return 1;
case GL_LINEAR_ATTENUATION: return 1;
case GL_QUADRATIC_ATTENUATION: return 1;
default:
return 0;
}
}
GLint __glLightiv_size(GLenum pname)
{
return __glLightfv_size(pname);
}
GLint __glLightModelfv_size(GLenum pname)
{
switch (pname) {
case GL_LIGHT_MODEL_AMBIENT: return 4;
case GL_LIGHT_MODEL_LOCAL_VIEWER: return 1;
case GL_LIGHT_MODEL_TWO_SIDE: return 1;
default:
return 0;
}
}
GLint __glLightModeliv_size(GLenum pname)
{
return __glLightModelfv_size(pname);
}
GLint __glMaterialfv_size(GLenum pname)
{
switch (pname) {
case GL_SHININESS: return 1;
case GL_EMISSION: return 4;
case GL_AMBIENT: return 4;
case GL_DIFFUSE: return 4;
case GL_SPECULAR: return 4;
case GL_AMBIENT_AND_DIFFUSE: return 4;
case GL_COLOR_INDEXES: return 3;
default:
return 0;
}
}
GLint __glMaterialiv_size(GLenum pname)
{
return __glMaterialfv_size(pname);
}
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