mirror of
https://github.com/id-Software/Wolf3D-iOS.git
synced 2026-03-19 16:39:49 +01:00
340 lines
7.3 KiB
C
340 lines
7.3 KiB
C
/*
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Copyright (C) 2004-2005 Michael Liebscher <johnnycanuck@users.sourceforge.net>
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Copyright (C) 1997-2001 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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/*
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* opengl_draw.c: OpenGL drawing routines.
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*
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* Author: Michael Liebscher
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*
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* Acknowledgement:
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* This code was derived from Quake II, and was originally
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* written by Id Software, Inc.
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*
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*/
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#include "../wolfiphone.h"
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texture_t *draw_chars;
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//extern _boolean scrap_dirty;
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//void Scrap_Upload (void);
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/*
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-----------------------------------------------------------------------------
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Function: R_Draw_Char -Draw ASCII character to the screen.
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Parameters: x -[in] x-coordinate.
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y -[in] y-coordinate.
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num -[in] ASCII character value.
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myfont -[in] Valid pointer to font_t structure.
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Returns: Nothing.
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Notes:
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It can be clipped to the top of the screen to allow the console to be
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smoothly scrolled off.
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-----------------------------------------------------------------------------
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*/
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PUBLIC void R_Draw_Character( int x, int y, int num, font_t *myfont )
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{
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int row, col;
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int scale, sh; // scaled width, height
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float frow, fcol;
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num &= 255;
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if( (num & 127) == 32 )
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{
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return; // space
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}
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if( y <= -myfont->nMaxHeight )
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{
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return; // totally off screen
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}
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scale = myfont->nSize;
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sh = myfont->nMaxHeight;
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row = (num >> 4) - 2;
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col = num & 15;
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frow = row * myfont->hFrac;
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fcol = col * myfont->wFrac;
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pfglColor4ubv( myfont->colour );
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pfglEnable( GL_BLEND );
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R_Bind( myfont->texfont->texnum );
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pfglBegin( GL_QUADS );
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pfglTexCoord2f( fcol, frow );
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pfglVertex2i( x, y );
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pfglTexCoord2f( fcol+myfont->wFrac, frow );
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pfglVertex2i( x+myfont->nMaxWidth*scale, y );
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pfglTexCoord2f( fcol+myfont->wFrac, frow+myfont->hFrac );
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pfglVertex2i( x+myfont->nMaxWidth*scale, (y+sh*scale) );
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pfglTexCoord2f( fcol, frow+myfont->hFrac );
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pfglVertex2i( x, (y+sh*scale) );
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pfglEnd();
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pfglDisable( GL_BLEND );
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pfglColor3f( 1, 1, 1 );
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}
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/*
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-----------------------------------------------------------------------------
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Function: R_Draw_StretchPic -Draw stretched image to the screen.
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Parameters: x -[in] x-coordinate.
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y -[in] y-coordinate.
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w -[in] width of region.
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h -[in] height of region.
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pic -[in] Image filename to stretch.
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Returns: Nothing.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC void R_Draw_StretchPic( int x, int y, int w, int h, const char *pic )
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{
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texture_t *gl;
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gl = TM_FindTexture( pic, TT_Pic );
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if( ! gl )
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{
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Com_Printf( "Can't find pic: %s\n", pic );
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return;
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}
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// if( scrap_dirty )
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// Scrap_Upload();
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R_Bind( gl->texnum );
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pfglBegin( GL_QUADS );
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pfglTexCoord2f( 0.0f, 0.0f ); pfglVertex2i( x, y );
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pfglTexCoord2f( 1.0f, 0.0f ); pfglVertex2i( x+w, y );
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pfglTexCoord2f( 1.0f, 1.0f ); pfglVertex2i( x+w, y+h );
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pfglTexCoord2f( 0.0f, 1.0f ); pfglVertex2i( x, y+h );
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pfglEnd();
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}
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/*
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-----------------------------------------------------------------------------
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Function: R_Draw_Pic -Draw image to the screen.
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Parameters: x -[in] x-coordinate.
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y -[in] y-coordinate.
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pic -[in] Image filename to draw.
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Returns: Nothing.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC void R_Draw_Pic( int x, int y, const char *pic )
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{
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texture_t *tex;
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tex = TM_FindTexture( pic, TT_Pic );
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if( ! tex )
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{
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Com_Printf( "Can't find pic: %s\n", pic );
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return;
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}
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// if( scrap_dirty )
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// Scrap_Upload();
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R_Bind( tex->texnum );
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pfglBegin( GL_QUADS );
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pfglTexCoord2f( 0.0, 0.0 ); pfglVertex2i( x, y );
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pfglTexCoord2f( 1.0, 0.0 ); pfglVertex2i( x + tex->width, y );
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pfglTexCoord2f( 1.0, 1.0 ); pfglVertex2i( x + tex->width, y + tex->height );
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pfglTexCoord2f( 0.0, 1.0 ); pfglVertex2i( x, y + tex->height );
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pfglEnd();
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}
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/*
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-----------------------------------------------------------------------------
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Function: R_Draw_Tile -Tile image on the screen.
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Parameters: x -[in] x-coordinate.
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y -[in] y-coordinate.
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w -[in] width of region.
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h -[in] height of region.
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pic -[in] Image filename to draw.
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Returns: Nothing.
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Notes:
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This repeats a tile graphic to fill a region on the screen.
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-----------------------------------------------------------------------------
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*/
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PUBLIC void R_Draw_Tile( int x, int y, int w, int h, const char *pic )
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{
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texture_t *image;
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image = TM_FindTexture( pic, TT_Wall );
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if( ! image )
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{
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Com_Printf( "Can't find pic: %s\n", pic );
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return;
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}
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R_Bind( image->texnum );
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pfglBegin( GL_QUADS );
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pfglTexCoord2i( x/image->upload_width, y/image->upload_height);
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pfglVertex2i( x, y );
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pfglTexCoord2i( (x + w)/image->upload_width, y/image->upload_height);
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pfglVertex2i( x + w, y );
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pfglTexCoord2i( (x+w)/image->upload_width, (y+h)/image->upload_height);
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pfglVertex2i( x + w, y + h );
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pfglTexCoord2i( x/image->upload_width, (y+h)/image->upload_height );
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pfglVertex2i( x, y + h );
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pfglEnd ();
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}
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/*
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-----------------------------------------------------------------------------
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Function: R_Draw_Fill -Fills a box of pixels with a single color.
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Parameters: x -[in] x-coordinate.
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y -[in] y-coordinate.
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w -[in] width of region.
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h -[in] height of region.
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c -[in] Colour to fill region.
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Returns: Nothing.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC void R_Draw_Fill( int x, int y, int w, int h, colour3_t c )
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{
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qglScissor( x, 320-(y+h), w, h );
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qglEnable( GL_SCISSOR_TEST );
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qglClearColor( c[0] / 255.0f, c[1] / 255.0f, c[2] / 255.0f, 1.0f );
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qglClear( GL_COLOR_BUFFER_BIT );
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qglDisable( GL_SCISSOR_TEST );
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}
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PUBLIC void R_Draw_Blend( int x, int y, int w, int h, colour4_t c )
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{
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pfglDisable( GL_TEXTURE_2D );
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pfglColor4ubv( c );
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pfglBegin( GL_QUADS );
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pfglVertex2i( x, y );
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pfglVertex2i( x+w, y );
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pfglVertex2i( x+w, y+h );
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pfglVertex2i( x, y+h );
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pfglEnd();
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pfglColor3f( 1, 1, 1 );
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pfglEnable( GL_TEXTURE_2D );
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}
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/*
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-----------------------------------------------------------------------------
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Function: R_Draw_Line -Draw a line on the screen.
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Parameters: nXStart -[in] x-coordinate of starting point.
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nYStart -[in] y-coordinate of starting point.
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nXEnd -[in] x-coordinate of ending point.
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nYEnd -[in] y-coordinate of ending point.
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c -[in] Colour value.
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Returns: Nothing.
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Notes:
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-----------------------------------------------------------------------------
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*/
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PUBLIC void R_Draw_Line( int nXStart, int nYStart, int nXEnd, int nYEnd, int width, colour3_t c )
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{
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pfglDisable( GL_TEXTURE_2D );
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pfglColor3ubv( c );
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pfglLineWidth( (float)width );
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pfglBegin( GL_LINES );
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pfglVertex2i( nXStart, nYStart );
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pfglVertex2i( nXEnd, nYEnd );
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pfglEnd();
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pfglColor3f( 1, 1, 1 );
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pfglEnable( GL_TEXTURE_2D );
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}
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