564 lines
12 KiB
C
564 lines
12 KiB
C
/*
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** License Applicability. Except to the extent portions of this file are
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** made subject to an alternative license as permitted in the SGI Free
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** Software License B, Version 1.1 (the "License"), the contents of this
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** file are subject only to the provisions of the License. You may not use
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** this file except in compliance with the License. You may obtain a copy
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** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
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** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
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**
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** http://oss.sgi.com/projects/FreeB
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**
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** Note that, as provided in the License, the Software is distributed on an
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** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
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** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
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** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
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** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
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**
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** Original Code. The Original Code is: OpenGL Sample Implementation,
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** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
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** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
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** Copyright in any portions created by third parties is as indicated
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** elsewhere herein. All Rights Reserved.
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**
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** Additional Notice Provisions: The application programming interfaces
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** established by SGI in conjunction with the Original Code are The
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** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
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** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
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** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
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** Window System(R) (Version 1.3), released October 19, 1998. This software
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** was created using the OpenGL(R) version 1.2.1 Sample Implementation
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** published by SGI, but has not been independently verified as being
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** compliant with the OpenGL(R) version 1.2.1 Specification.
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**
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*/
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#include <GL/gl.h>
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GLint __glFogiv_size(GLenum pname)
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{
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switch (pname) {
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case GL_FOG_COLOR: return 4;
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case GL_FOG_DENSITY: return 1;
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case GL_FOG_END: return 1;
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case GL_FOG_MODE: return 1;
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case GL_FOG_INDEX: return 1;
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case GL_FOG_START: return 1;
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default:
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return 0;
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}
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}
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GLint __glFogfv_size(GLenum pname)
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{
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return __glFogiv_size(pname);
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}
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GLint __glCallLists_size(GLsizei n, GLenum type)
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{
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GLint size;
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if (n < 0) return 0;
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switch (type) {
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case GL_BYTE: size = 1; break;
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case GL_UNSIGNED_BYTE: size = 1; break;
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case GL_SHORT: size = 2; break;
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case GL_UNSIGNED_SHORT: size = 2; break;
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case GL_INT: size = 4; break;
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case GL_UNSIGNED_INT: size = 4; break;
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case GL_FLOAT: size = 4; break;
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case GL_2_BYTES: size = 2; break;
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case GL_3_BYTES: size = 3; break;
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case GL_4_BYTES: size = 4; break;
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default:
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return 0;
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}
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return n * size;
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}
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GLint __glDrawPixels_size(GLenum format, GLenum type, GLsizei w, GLsizei h)
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{
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GLint elements, esize;
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switch (format) {
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case GL_COLOR_INDEX:
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case GL_STENCIL_INDEX:
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case GL_DEPTH_COMPONENT:
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elements = 1;
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break;
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case GL_RED:
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case GL_GREEN:
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case GL_BLUE:
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case GL_ALPHA:
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case GL_LUMINANCE:
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elements = 1;
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break;
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case GL_LUMINANCE_ALPHA:
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elements = 2;
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break;
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case GL_RGB:
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elements = 3;
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break;
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case GL_RGBA:
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case GL_ABGR_EXT:
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elements = 4;
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break;
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default:
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return 0;
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}
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switch (type) {
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case GL_BITMAP:
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if (format == GL_COLOR_INDEX || format == GL_STENCIL_INDEX) {
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return (h * ((w+7)/8));
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} else {
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return 0;
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}
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case GL_BYTE:
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case GL_UNSIGNED_BYTE:
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esize = 1;
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break;
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case GL_UNSIGNED_BYTE_3_3_2:
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case GL_UNSIGNED_BYTE_2_3_3_REV:
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esize = 1;
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elements = 1;
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break;
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case GL_SHORT:
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case GL_UNSIGNED_SHORT:
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esize = 2;
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break;
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case GL_UNSIGNED_SHORT_5_6_5:
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case GL_UNSIGNED_SHORT_5_6_5_REV:
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case GL_UNSIGNED_SHORT_4_4_4_4:
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case GL_UNSIGNED_SHORT_4_4_4_4_REV:
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case GL_UNSIGNED_SHORT_5_5_5_1:
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case GL_UNSIGNED_SHORT_1_5_5_5_REV:
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esize = 2;
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elements = 1;
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break;
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case GL_INT:
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case GL_UNSIGNED_INT:
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case GL_FLOAT:
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esize = 4;
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break;
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case GL_UNSIGNED_INT_8_8_8_8:
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case GL_UNSIGNED_INT_8_8_8_8_REV:
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case GL_UNSIGNED_INT_10_10_10_2:
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case GL_UNSIGNED_INT_2_10_10_10_REV:
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esize = 4;
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elements = 1;
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break;
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default:
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return 0;
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}
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return (elements * esize * w * h);
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}
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GLint __glBitmap_size(GLsizei w, GLsizei h)
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{
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return __glDrawPixels_size(GL_COLOR_INDEX, GL_BITMAP, w, h);
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}
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GLint __glTexGendv_size(GLenum e)
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{
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switch (e) {
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case GL_TEXTURE_GEN_MODE:
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return 1;
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case GL_OBJECT_PLANE:
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case GL_EYE_PLANE:
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return 4;
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default:
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return 0;
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}
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}
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GLint __glTexGenfv_size(GLenum e)
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{
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return __glTexGendv_size(e);
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}
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GLint __glTexGeniv_size(GLenum e)
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{
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return __glTexGendv_size(e);
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}
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GLint __glTexParameterfv_size(GLenum e)
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{
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switch (e) {
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case GL_TEXTURE_WRAP_S:
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case GL_TEXTURE_WRAP_T:
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case GL_TEXTURE_WRAP_R:
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case GL_TEXTURE_MIN_FILTER:
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case GL_TEXTURE_MAG_FILTER:
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return 1;
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case GL_TEXTURE_BORDER_COLOR:
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return 4;
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case GL_TEXTURE_PRIORITY:
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return 1;
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case GL_TEXTURE_MIN_LOD:
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case GL_TEXTURE_MAX_LOD:
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case GL_TEXTURE_BASE_LEVEL:
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case GL_TEXTURE_MAX_LEVEL:
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return 1;
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default:
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return 0;
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}
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}
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GLint __glTexParameteriv_size(GLenum e)
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{
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return __glTexParameterfv_size(e);
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}
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GLint __glTexEnvfv_size(GLenum e)
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{
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switch (e) {
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case GL_TEXTURE_ENV_MODE:
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return 1;
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case GL_TEXTURE_ENV_COLOR:
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return 4;
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default:
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return 0;
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}
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}
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GLint __glTexEnviv_size(GLenum e)
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{
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return __glTexEnvfv_size(e);
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}
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GLint __glTexImage1D_size(GLenum format, GLenum type, GLsizei w)
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{
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GLint elements, esize;
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if (w < 0) return 0;
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switch (format) {
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case GL_COLOR_INDEX:
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elements = 1;
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break;
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case GL_RED:
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case GL_GREEN:
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case GL_BLUE:
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case GL_ALPHA:
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case GL_LUMINANCE:
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elements = 1;
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break;
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case GL_LUMINANCE_ALPHA:
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elements = 2;
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break;
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case GL_RGB:
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elements = 3;
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break;
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case GL_RGBA:
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case GL_ABGR_EXT:
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elements = 4;
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break;
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default:
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return 0;
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}
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switch (type) {
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case GL_BITMAP:
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if (format == GL_COLOR_INDEX) {
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return (w+7)/8;
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} else {
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return 0;
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}
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case GL_BYTE:
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case GL_UNSIGNED_BYTE:
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esize = 1;
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break;
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case GL_UNSIGNED_BYTE_3_3_2:
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case GL_UNSIGNED_BYTE_2_3_3_REV:
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esize = 1;
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elements = 1;
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break;
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case GL_SHORT:
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case GL_UNSIGNED_SHORT:
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esize = 2;
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break;
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case GL_UNSIGNED_SHORT_5_6_5:
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case GL_UNSIGNED_SHORT_5_6_5_REV:
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case GL_UNSIGNED_SHORT_4_4_4_4:
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case GL_UNSIGNED_SHORT_4_4_4_4_REV:
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case GL_UNSIGNED_SHORT_5_5_5_1:
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case GL_UNSIGNED_SHORT_1_5_5_5_REV:
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esize = 2;
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elements = 1;
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break;
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case GL_INT:
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case GL_UNSIGNED_INT:
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case GL_FLOAT:
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esize = 4;
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break;
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case GL_UNSIGNED_INT_8_8_8_8:
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case GL_UNSIGNED_INT_8_8_8_8_REV:
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case GL_UNSIGNED_INT_10_10_10_2:
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case GL_UNSIGNED_INT_2_10_10_10_REV:
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esize = 4;
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elements = 1;
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break;
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default:
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return 0;
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}
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return (elements * esize * w);
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}
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GLint __glTexImage2D_size(GLenum format, GLenum type, GLsizei w, GLsizei h)
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{
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GLint elements, esize;
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if (w < 0) return 0;
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if (h < 0) return 0;
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switch (format) {
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case GL_COLOR_INDEX:
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elements = 1;
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break;
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case GL_RED:
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case GL_GREEN:
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case GL_BLUE:
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case GL_ALPHA:
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case GL_LUMINANCE:
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elements = 1;
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break;
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case GL_LUMINANCE_ALPHA:
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elements = 2;
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break;
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case GL_RGB:
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elements = 3;
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break;
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case GL_RGBA:
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case GL_ABGR_EXT:
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elements = 4;
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break;
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default:
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return 0;
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}
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switch (type) {
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case GL_BITMAP:
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if (format == GL_COLOR_INDEX) {
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return (h * ((w+7)/8));
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} else {
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return 0;
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}
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case GL_BYTE:
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case GL_UNSIGNED_BYTE:
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esize = 1;
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break;
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case GL_UNSIGNED_BYTE_3_3_2:
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case GL_UNSIGNED_BYTE_2_3_3_REV:
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esize = 1;
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elements = 1;
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break;
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case GL_SHORT:
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case GL_UNSIGNED_SHORT:
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esize = 2;
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break;
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case GL_UNSIGNED_SHORT_5_6_5:
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case GL_UNSIGNED_SHORT_5_6_5_REV:
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case GL_UNSIGNED_SHORT_4_4_4_4:
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case GL_UNSIGNED_SHORT_4_4_4_4_REV:
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case GL_UNSIGNED_SHORT_5_5_5_1:
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case GL_UNSIGNED_SHORT_1_5_5_5_REV:
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esize = 2;
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elements = 1;
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break;
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case GL_INT:
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case GL_UNSIGNED_INT:
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case GL_FLOAT:
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esize = 4;
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break;
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case GL_UNSIGNED_INT_8_8_8_8:
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case GL_UNSIGNED_INT_8_8_8_8_REV:
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case GL_UNSIGNED_INT_10_10_10_2:
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case GL_UNSIGNED_INT_2_10_10_10_REV:
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esize = 4;
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elements = 1;
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break;
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default:
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return 0;
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}
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return (elements * esize * w * h);
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}
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GLint __glTexImage3D_size(GLenum format, GLenum type, GLsizei w, GLsizei h,
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GLsizei d)
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{
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GLint elements, esize;
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if (w < 0) return 0;
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if (h < 0) return 0;
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if (d < 0) return 0;
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switch (format) {
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case GL_COLOR_INDEX:
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elements = 1;
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break;
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case GL_RED:
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case GL_GREEN:
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case GL_BLUE:
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case GL_ALPHA:
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case GL_LUMINANCE:
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elements = 1;
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break;
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case GL_LUMINANCE_ALPHA:
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elements = 2;
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break;
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case GL_RGB:
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elements = 3;
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break;
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case GL_RGBA:
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case GL_ABGR_EXT:
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elements = 4;
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break;
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default:
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return 0;
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}
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switch (type) {
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case GL_BITMAP:
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if (format == GL_COLOR_INDEX) {
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return (d * (h * ((w+7)/8)));
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} else {
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return 0;
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}
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case GL_BYTE:
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case GL_UNSIGNED_BYTE:
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esize = 1;
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break;
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case GL_UNSIGNED_BYTE_3_3_2:
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case GL_UNSIGNED_BYTE_2_3_3_REV:
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esize = 1;
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elements = 1;
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break;
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case GL_SHORT:
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case GL_UNSIGNED_SHORT:
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esize = 2;
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break;
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case GL_UNSIGNED_SHORT_5_6_5:
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case GL_UNSIGNED_SHORT_5_6_5_REV:
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case GL_UNSIGNED_SHORT_4_4_4_4:
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case GL_UNSIGNED_SHORT_4_4_4_4_REV:
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case GL_UNSIGNED_SHORT_5_5_5_1:
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case GL_UNSIGNED_SHORT_1_5_5_5_REV:
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esize = 2;
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elements = 1;
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break;
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case GL_INT:
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case GL_UNSIGNED_INT:
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case GL_FLOAT:
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esize = 4;
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break;
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case GL_UNSIGNED_INT_8_8_8_8:
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case GL_UNSIGNED_INT_8_8_8_8_REV:
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case GL_UNSIGNED_INT_10_10_10_2:
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case GL_UNSIGNED_INT_2_10_10_10_REV:
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esize = 4;
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elements = 1;
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break;
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default:
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return 0;
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}
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return (elements * esize * w * h * d);
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}
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GLint __glLightfv_size(GLenum pname)
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|
{
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|
switch (pname) {
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case GL_SPOT_EXPONENT: return 1;
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case GL_SPOT_CUTOFF: return 1;
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case GL_AMBIENT: return 4;
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case GL_DIFFUSE: return 4;
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case GL_SPECULAR: return 4;
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case GL_POSITION: return 4;
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case GL_SPOT_DIRECTION: return 3;
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case GL_CONSTANT_ATTENUATION: return 1;
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case GL_LINEAR_ATTENUATION: return 1;
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case GL_QUADRATIC_ATTENUATION: return 1;
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default:
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return 0;
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}
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}
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GLint __glLightiv_size(GLenum pname)
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{
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return __glLightfv_size(pname);
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}
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GLint __glLightModelfv_size(GLenum pname)
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{
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switch (pname) {
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case GL_LIGHT_MODEL_AMBIENT: return 4;
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case GL_LIGHT_MODEL_LOCAL_VIEWER: return 1;
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case GL_LIGHT_MODEL_TWO_SIDE: return 1;
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case GL_LIGHT_MODEL_COLOR_CONTROL: return 1;
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default:
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return 0;
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}
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}
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GLint __glLightModeliv_size(GLenum pname)
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{
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return __glLightModelfv_size(pname);
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}
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GLint __glMaterialfv_size(GLenum pname)
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|
{
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switch (pname) {
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case GL_SHININESS: return 1;
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case GL_EMISSION: return 4;
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case GL_AMBIENT: return 4;
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case GL_DIFFUSE: return 4;
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case GL_SPECULAR: return 4;
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case GL_AMBIENT_AND_DIFFUSE: return 4;
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case GL_COLOR_INDEXES: return 3;
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default:
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return 0;
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}
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}
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GLint __glMaterialiv_size(GLenum pname)
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{
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return __glMaterialfv_size(pname);
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}
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GLint __glColorTableParameterfv_size(GLenum pname)
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|
{
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|
switch (pname) {
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case GL_COLOR_TABLE_FORMAT:
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case GL_COLOR_TABLE_WIDTH:
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case GL_COLOR_TABLE_RED_SIZE:
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case GL_COLOR_TABLE_GREEN_SIZE:
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case GL_COLOR_TABLE_BLUE_SIZE:
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case GL_COLOR_TABLE_ALPHA_SIZE:
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case GL_COLOR_TABLE_LUMINANCE_SIZE:
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case GL_COLOR_TABLE_INTENSITY_SIZE:
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return 1;
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case GL_COLOR_TABLE_SCALE:
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case GL_COLOR_TABLE_BIAS:
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return 4;
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default:
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return -1;
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}
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}
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GLint __glColorTableParameteriv_size(GLenum pname)
|
|
{
|
|
return __glColorTableParameterfv_size(pname);
|
|
}
|
|
|
|
GLint __glConvolutionParameterfv_size(GLenum pname)
|
|
{
|
|
switch(pname) {
|
|
case GL_CONVOLUTION_BORDER_MODE:
|
|
return 1;
|
|
case GL_CONVOLUTION_BORDER_COLOR:
|
|
case GL_CONVOLUTION_FILTER_SCALE:
|
|
case GL_CONVOLUTION_FILTER_BIAS:
|
|
return 4;
|
|
default: /* error: bad enum value */
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
GLint __glConvolutionParameteriv_size(GLenum pname)
|
|
{
|
|
return __glConvolutionParameterfv_size(pname);
|
|
}
|