home *** CD-ROM | disk | FTP | other *** search
- /* $Id: depth.h,v 1.2 1996/09/15 14:19:16 brianp Exp $ */
-
- /*
- * Mesa 3-D graphics library
- * Version: 2.0
- * Copyright (C) 1995-1996 Brian Paul
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the Free
- * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
-
- /*
- * $Log: depth.h,v $
- * Revision 1.2 1996/09/15 14:19:16 brianp
- * now use GLframebuffer and GLvisual
- *
- * Revision 1.1 1996/09/13 01:38:16 brianp
- * Initial revision
- *
- */
-
-
- #ifndef DEPTH_H
- #define DEPTH_H
-
-
- #include "types.h"
-
-
- /*
- * Return the address of the Z-buffer value for window coordinate (x,y):
- */
- #define Z_ADDRESS( CTX, X, Y ) \
- ((CTX)->Buffer->Depth + (CTX)->Buffer->Width * (Y) + (X))
-
-
-
-
- extern GLuint
- gl_depth_test_span_generic( GLcontext* ctx, GLuint n, GLint x, GLint y,
- const GLdepth z[], GLubyte mask[] );
-
- extern GLuint
- gl_depth_test_span_less( GLcontext* ctx, GLuint n, GLint x, GLint y,
- const GLdepth z[], GLubyte mask[] );
-
- extern GLuint
- gl_depth_test_span_greater( GLcontext* ctx, GLuint n, GLint x, GLint y,
- const GLdepth z[], GLubyte mask[] );
-
-
-
- extern void
- gl_depth_test_pixels_generic( GLcontext* ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLdepth z[], GLubyte mask[] );
-
- extern void
- gl_depth_test_pixels_less( GLcontext* ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLdepth z[], GLubyte mask[] );
-
- extern void
- gl_depth_test_pixels_greater( GLcontext* ctx,
- GLuint n, const GLint x[], const GLint y[],
- const GLdepth z[], GLubyte mask[] );
-
-
- extern void gl_read_depth_span_float( GLcontext* ctx,
- GLuint n, GLint x, GLint y,
- GLfloat depth[] );
-
-
- extern void gl_read_depth_span_int( GLcontext* ctx, GLuint n, GLint x, GLint y,
- GLdepth depth[] );
-
-
- extern void gl_alloc_depth_buffer( GLcontext* ctx );
-
-
- extern void gl_clear_depth_buffer( GLcontext* ctx );
-
-
- extern void gl_ClearDepth( GLcontext* ctx, GLclampd depth );
- extern void gl_DepthFunc( GLcontext* ctx, GLenum func );
- extern void gl_DepthMask( GLcontext* ctx, GLboolean flag );
- extern void gl_DepthRange( GLcontext* ctx, GLclampd nearval, GLclampd farval );
-
- #endif
-