mirror of
https://github.com/reactos/reactos.git
synced 2024-06-28 17:01:28 +00:00
5f2bebf7a5
With this commit, we now use a forked version of MESA which only supports OpenGL 1.1, like the windows implementation does. It exposes : - The same pixel formats - The same set of extensions - Nothing more All of this without taking 10% of your build time. If you need a more modern option, look at the MESA package from Rapps, which is (and must be) maintained outside of this code tree. CORE-7499
172 lines
4.2 KiB
C
172 lines
4.2 KiB
C
/* $Id: polygon.c,v 1.7 1997/07/24 01:23:44 brianp Exp $ */
|
|
|
|
/*
|
|
* Mesa 3-D graphics library
|
|
* Version: 2.4
|
|
* Copyright (C) 1995-1997 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: polygon.c,v $
|
|
* Revision 1.7 1997/07/24 01:23:44 brianp
|
|
* changed precompiled header symbol from PCH to PC_HEADER
|
|
*
|
|
* Revision 1.6 1997/06/03 01:58:27 brianp
|
|
* fixed unpacking bug in gl_PolygonStipple()
|
|
*
|
|
* Revision 1.5 1997/05/28 03:26:02 brianp
|
|
* added precompiled header (PCH) support
|
|
*
|
|
* Revision 1.4 1997/04/12 16:54:05 brianp
|
|
* new NEW_POLYGON state flag
|
|
*
|
|
* Revision 1.3 1996/10/11 03:44:58 brianp
|
|
* removed Polygon.OffsetBias
|
|
*
|
|
* Revision 1.2 1996/09/26 22:48:40 brianp
|
|
* set NEW_RASTER_OPS flag in gl_PolygonStipple() if stippling enabled
|
|
*
|
|
* Revision 1.1 1996/09/13 01:38:16 brianp
|
|
* Initial revision
|
|
*
|
|
*/
|
|
|
|
|
|
#ifdef PC_HEADER
|
|
#include "all.h"
|
|
#else
|
|
#include <assert.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include "context.h"
|
|
#include "macros.h"
|
|
#include "polygon.h"
|
|
#include "types.h"
|
|
#endif
|
|
|
|
|
|
|
|
void gl_CullFace( GLcontext *ctx, GLenum mode )
|
|
{
|
|
if (mode!=GL_FRONT && mode!=GL_BACK && mode!=GL_FRONT_AND_BACK) {
|
|
gl_error( ctx, GL_INVALID_ENUM, "glCullFace" );
|
|
return;
|
|
}
|
|
if (INSIDE_BEGIN_END(ctx)) {
|
|
gl_error( ctx, GL_INVALID_OPERATION, "glCullFace" );
|
|
return;
|
|
}
|
|
ctx->Polygon.CullFaceMode = mode;
|
|
ctx->NewState |= NEW_POLYGON;
|
|
}
|
|
|
|
|
|
|
|
void gl_FrontFace( GLcontext *ctx, GLenum mode )
|
|
{
|
|
if (INSIDE_BEGIN_END(ctx)) {
|
|
gl_error( ctx, GL_INVALID_OPERATION, "glFrontFace" );
|
|
return;
|
|
}
|
|
if (mode!=GL_CW && mode!=GL_CCW) {
|
|
gl_error( ctx, GL_INVALID_ENUM, "glFrontFace" );
|
|
return;
|
|
}
|
|
ctx->Polygon.FrontFace = mode;
|
|
}
|
|
|
|
|
|
|
|
void gl_PolygonMode( GLcontext *ctx, GLenum face, GLenum mode )
|
|
{
|
|
if (INSIDE_BEGIN_END(ctx)) {
|
|
gl_error( ctx, GL_INVALID_OPERATION, "glPolygonMode" );
|
|
return;
|
|
}
|
|
if (face!=GL_FRONT && face!=GL_BACK && face!=GL_FRONT_AND_BACK) {
|
|
gl_error( ctx, GL_INVALID_ENUM, "glPolygonMode(face)" );
|
|
return;
|
|
}
|
|
else if (mode!=GL_POINT && mode!=GL_LINE && mode!=GL_FILL) {
|
|
gl_error( ctx, GL_INVALID_ENUM, "glPolygonMode(mode)" );
|
|
return;
|
|
}
|
|
|
|
if (face==GL_FRONT || face==GL_FRONT_AND_BACK) {
|
|
ctx->Polygon.FrontMode = mode;
|
|
}
|
|
if (face==GL_BACK || face==GL_FRONT_AND_BACK) {
|
|
ctx->Polygon.BackMode = mode;
|
|
}
|
|
|
|
/* Compute a handy "shortcut" value: */
|
|
if (ctx->Polygon.FrontMode!=GL_FILL || ctx->Polygon.BackMode!=GL_FILL) {
|
|
ctx->Polygon.Unfilled = GL_TRUE;
|
|
}
|
|
else {
|
|
ctx->Polygon.Unfilled = GL_FALSE;
|
|
}
|
|
|
|
ctx->NewState |= NEW_POLYGON;
|
|
}
|
|
|
|
|
|
|
|
void gl_PolygonStipple( GLcontext *ctx, const GLubyte *mask )
|
|
{
|
|
GLint i;
|
|
|
|
if (INSIDE_BEGIN_END(ctx)) {
|
|
gl_error( ctx, GL_INVALID_OPERATION, "glPolygonStipple" );
|
|
return;
|
|
}
|
|
|
|
/* TODO: bit twiddling, unpacking */
|
|
for (i=0;i<32;i++) {
|
|
ctx->PolygonStipple[i] = (mask[i*4+0] << 24)
|
|
| (mask[i*4+1] << 16)
|
|
| (mask[i*4+2] << 8)
|
|
| (mask[i*4+3]);
|
|
}
|
|
|
|
if (ctx->Polygon.StippleFlag) {
|
|
ctx->NewState |= NEW_RASTER_OPS;
|
|
}
|
|
}
|
|
|
|
|
|
|
|
void gl_GetPolygonStipple( GLcontext *ctx, GLubyte *mask )
|
|
{
|
|
/* TODO */
|
|
}
|
|
|
|
|
|
|
|
void gl_PolygonOffset( GLcontext *ctx,
|
|
GLfloat factor, GLfloat units )
|
|
{
|
|
if (INSIDE_BEGIN_END(ctx)) {
|
|
gl_error( ctx, GL_INVALID_OPERATION, "glPolygonOffset" );
|
|
return;
|
|
}
|
|
ctx->Polygon.OffsetFactor = factor;
|
|
ctx->Polygon.OffsetUnits = units;
|
|
}
|
|
|