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/*
* PARSEC - Miscellaneous Drawing Code
*
* $Author: uberlinuxguy $ - $Date: 2004/09/15 12:25:22 $
*
* Orginally written by:
* Copyright (c) Markus Hadwiger <msh@parsec.org> 1999
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
// C library
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
// compilation flags/debug support
#include "config.h"
#include "debug.h"
// general definitions
#include "general.h"
#include "objstruc.h"
// global externals
#include "globals.h"
// subsystem headers
#include "vid_defs.h"
// drawing subsystem
#include "d_misc.h"
// local module header
#include "do_misc.h"
// proprietary module headers
#include "e_color.h"
#include "ro_api.h"
#include "ro_supp.h"
// draw square with single color ----------------------------------------------
//
int D_DrawSquare( ugrid_t xko, ugrid_t yko, visual_t col, dword siz )
{
// configure rasterizer
dword itertype = iter_rgb;
dword raststate = rast_chromakeyoff;
dword rastmask = rast_mask_zbuffer | rast_mask_texclamp |
rast_mask_mipmap | rast_mask_texfilter;
RO_InitRasterizerState( itertype, raststate, rastmask );
// set color
colrgba_s colrgba;
VisualToRGBA( &colrgba, col );
glColor3ub( (GLubyte)colrgba.R, (GLubyte)colrgba.G, (GLubyte)colrgba.B );
RO_PointSize( (GLfloat)siz );
GLshort vertices[] = {xko, yko};
RO_ClientState(VTXARRAY_VERTICES);
RO_ArrayMakeCurrent(VTXPTRS_NONE, NULL);
glVertexPointer(2, GL_SHORT, 0, vertices);
glDrawArrays(GL_POINTS, 0, 1);
// set rasterizer state to default
RO_DefaultRasterizerState();
return 1;
}
// draw square of homogeneous color taking the z-buffer into account ----------
//
int D_DrawSquareZ( ugrid_t xko, ugrid_t yko, visual_t col, dword siz, dword zvalue )
{
if ( (int)xko < 0 )
return 0;
if ( (int)yko < 0 )
return 0;
// save zcmp and zwrite state
int zcmpstate = RO_DepthCmpEnabled();
int zwritestate = RO_DepthWriteEnabled();
// configure rasterizer
dword itertype = iter_rgba | iter_alphablend;
dword raststate = rast_zbuffer | rast_chromakeyoff;
dword rastmask = rast_mask_texwrap | rast_mask_mipmap |
rast_mask_texfilter;
RO_InitRasterizerState( itertype, raststate, rastmask );
// set color
colrgba_s colrgba;
VisualToRGBA( &colrgba, col );
glColor3ub( (GLubyte)colrgba.R, (GLubyte)colrgba.G, (GLubyte)colrgba.B );
RO_PointSize( siz );
GLshort vertices[] = {xko, yko, 0}; // TODO: zvalue
RO_ClientState(VTXARRAY_VERTICES);
RO_ArrayMakeCurrent(VTXPTRS_NONE, NULL);
glVertexPointer(3, GL_SHORT, 0, vertices);
glDrawArrays(GL_POINTS, 0, 1);
// set rasterizer state to default
RO_DefaultRasterizerState();
// restore zcmp and zwrite state
if ( !zcmpstate || !zwritestate )
RO_DisableDepthBuffer( !zcmpstate, !zwritestate );
return 1;
}
// draw radar object ----------------------------------------------------------
//
void D_DrawRadarObj( ugrid_t xko, ugrid_t yko, visual_t col )
{
// configure rasterizer
dword itertype = iter_rgb;
dword raststate = rast_chromakeyoff;
dword rastmask = rast_mask_zbuffer | rast_mask_texclamp |
rast_mask_mipmap | rast_mask_texfilter;
RO_InitRasterizerState( itertype, raststate, rastmask );
// set color
colrgba_s colrgba;
VisualToRGBA( &colrgba, col );
glColor3ub( (GLubyte)colrgba.R, (GLubyte)colrgba.G, (GLubyte)colrgba.B );
RO_PointSize( 2.0f );
GLshort vertices[] = {xko, yko};
RO_ClientState(VTXARRAY_VERTICES);
RO_ArrayMakeCurrent(VTXPTRS_NONE, NULL);
glVertexPointer(2, GL_SHORT, 0, vertices);
glDrawArrays(GL_POINTS, 0, 1);
// set rasterizer state to default
RO_DefaultRasterizerState();
}
// draw horizontal bar --------------------------------------------------------
//
void D_DrawHorzBar( ugrid_t xko, ugrid_t yko, visual_t col, dword leng )
{
// configure rasterizer
dword itertype = iter_rgb;
dword raststate = rast_chromakeyoff;
dword rastmask = rast_mask_zbuffer | rast_mask_texclamp |
rast_mask_mipmap | rast_mask_texfilter;
RO_InitRasterizerState( itertype, raststate, rastmask );
// set color
colrgba_s colrgba;
VisualToRGBA( &colrgba, col );
glColor3ub( (GLubyte)colrgba.R, (GLubyte)colrgba.G, (GLubyte)colrgba.B );
GLshort vertices[] = {xko, yko, xko + leng, yko};
RO_ClientState(VTXARRAY_VERTICES);
RO_ArrayMakeCurrent(VTXPTRS_NONE, NULL);
glVertexPointer(2, GL_SHORT, 0, vertices);
glDrawArrays(GL_LINES, 0, 2);
// set rasterizer state to default
RO_DefaultRasterizerState();
}
// draw vertical bar ----------------------------------------------------------
//
void D_DrawVertBar( ugrid_t xko, ugrid_t yko, visual_t col, dword leng )
{
// configure rasterizer
dword itertype = iter_rgb;
dword raststate = rast_chromakeyoff;
dword rastmask = rast_mask_zbuffer | rast_mask_texclamp |
rast_mask_mipmap | rast_mask_texfilter;
RO_InitRasterizerState( itertype, raststate, rastmask );
// set color
colrgba_s colrgba;
VisualToRGBA( &colrgba, col );
glColor3ub( (GLubyte)colrgba.R, (GLubyte)colrgba.G, (GLubyte)colrgba.B );
GLshort vertices[] = {xko, yko, xko, yko + leng};
RO_ClientState(VTXARRAY_VERTICES);
RO_ArrayMakeCurrent(VTXPTRS_NONE, NULL);
glVertexPointer(2, GL_SHORT, 0, vertices);
glDrawArrays(GL_LINES, 0, 2);
// set rasterizer state to default
RO_DefaultRasterizerState();
}
// draw arbitrarily oriented line ---------------------------------------------
//
void D_DrawLine( ugrid_t xko1, ugrid_t yko1, ugrid_t xko2, ugrid_t yko2, visual_t col1, visual_t col2, dword mode )
{
// configure rasterizer
dword blendtype = ( mode & D_DRAWLINE_STYLE_ANTIALIASED ) ?
iter_alphablend : iter_overwrite;
dword itertype = iter_rgba | blendtype;
dword raststate = rast_chromakeyoff;
dword rastmask = rast_mask_zbuffer | rast_mask_texclamp |
rast_mask_mipmap | rast_mask_texfilter;
RO_InitRasterizerState( itertype, raststate, rastmask );
// set line antialiasing mode
if ( mode & D_DRAWLINE_STYLE_ANTIALIASED )
RO_LineSmooth( TRUE );
colrgba_s colrgba1, colrgba2;
VisualToRGBA( &colrgba1, col1 );
VisualToRGBA( &colrgba2, col2 );
GLshort vertices[] = {xko1, yko1, xko2, yko2};
GLubyte colors[] = {colrgba1.R, colrgba1.G, colrgba2.B, colrgba2.R, colrgba2.G, colrgba2.B};
RO_ClientState(VTXARRAY_VERTICES | VTXARRAY_COLORS);
RO_ArrayMakeCurrent(VTXPTRS_NONE, NULL);
glVertexPointer(2, GL_SHORT, 0, vertices);
glColorPointer(4, GL_UNSIGNED_BYTE, 0, colors);
glDrawArrays(GL_LINES, 0, 2);
// set rasterizer state to default
if ( mode & D_DRAWLINE_STYLE_ANTIALIASED )
RO_LineSmooth( FALSE );
RO_DefaultRasterizerState();
}
// draw line strip (draws numvtxs - 1 lines) ----------------------------------
//
void D_DrawLineStrip( ugrid_t *vtxs, dword numvtxs, visual_t col, dword mode )
{
ASSERT( vtxs != NULL );
ASSERT( numvtxs > 1 );
// configure rasterizer
dword blendtype = ( mode & D_DRAWLINE_STYLE_ANTIALIASED ) ?
iter_alphablend : iter_overwrite;
dword itertype = iter_rgba | blendtype;
dword raststate = rast_chromakeyoff;
dword rastmask = rast_mask_zbuffer | rast_mask_texclamp |
rast_mask_mipmap | rast_mask_texfilter;
RO_InitRasterizerState( itertype, raststate, rastmask );
// set color
colrgba_s colrgba;
VisualToRGBA( &colrgba, col );
glColor3ub( (GLubyte)colrgba.R, (GLubyte)colrgba.G, (GLubyte)colrgba.B );
// set line antialiasing mode
if ( mode & D_DRAWLINE_STYLE_ANTIALIASED )
RO_LineSmooth( TRUE );
// draw line strip/loop
GLenum glmode = ( mode & D_DRAWLINE_STYLE_CLOSE_STRIP ) ?
GL_LINE_LOOP : GL_LINE_STRIP;
RO_ClientState(VTXARRAY_VERTICES);
RO_ArrayMakeCurrent(VTXPTRS_NONE, NULL);
glVertexPointer(2, GL_SHORT, 0, vtxs);
glDrawArrays(glmode, 0, numvtxs);
// set rasterizer state to default
if ( mode & D_DRAWLINE_STYLE_ANTIALIASED )
RO_LineSmooth( FALSE );
RO_DefaultRasterizerState();
}
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