846 lines
23 KiB
C
Executable file
846 lines
23 KiB
C
Executable file
/* $Id: gr.c,v 1.1.1.1 2006/03/17 19:53:31 zicodxx Exp $ */
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/*
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*
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* OGL video functions. - Added 9/15/99 Matthew Mueller
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*
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*
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*/
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#ifdef HAVE_CONFIG_H
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#include <conf.h>
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#endif
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <limits.h>
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#ifdef _MSC_VER
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#include <windows.h>
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#endif
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#if !defined(_MSC_VER) && !defined(macintosh)
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#include <unistd.h>
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#endif
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#if !defined(macintosh)
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#endif
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#include <errno.h>
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#include "hudmsg.h"
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#include "game.h"
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#include "text.h"
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#include "gr.h"
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#include "gamefont.h"
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#include "grdef.h"
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#include "palette.h"
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#include "u_mem.h"
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#include "error.h"
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#include "inferno.h"
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#include "screens.h"
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#include "strutil.h"
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#include "mono.h"
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#include "args.h"
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#include "key.h"
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#include "physfsx.h"
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#define DECLARE_VARS
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#include "internal.h"
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#if defined(__APPLE__) && defined(__MACH__)
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#include <OpenGL/glu.h>
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#undef GL_ARB_multitexture // hack!
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#elif defined(_WIN32)
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#undef GL_ARB_multitexture
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#undef GL_NV_register_combiners
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#undef GL_EXT_paletted_texture
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#else
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#include <GL/glu.h>
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#endif
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int ogl_voodoohack=0;
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int gr_installed = 0;
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int gl_initialized=0;
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int gl_reticle = 0;
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int ogl_fullscreen;
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int ogl_scissor_ok=1;
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void gr_palette_clear(); // Function prototype for gr_init;
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int gr_check_fullscreen(void){
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return ogl_fullscreen;
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}
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void gr_do_fullscreen(int f){
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if (ogl_voodoohack)
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ogl_fullscreen=1;//force fullscreen mode on voodoos.
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else
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ogl_fullscreen=f;
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if (gl_initialized){
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ogl_do_fullscreen_internal();
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}
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}
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int gr_toggle_fullscreen(void){
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gr_do_fullscreen(!ogl_fullscreen);
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// grd_curscreen->sc_mode=0;//hack to get it to reset screen mode
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return ogl_fullscreen;
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}
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int arch_toggle_fullscreen_menu(void){
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unsigned char *buf=NULL;
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if (ogl_readpixels_ok){
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MALLOC(buf,unsigned char,grd_curscreen->sc_w*grd_curscreen->sc_h*3);
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glReadBuffer(GL_FRONT);
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glReadPixels(0,0,grd_curscreen->sc_w,grd_curscreen->sc_h,GL_RGB,GL_UNSIGNED_BYTE,buf);
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}
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gr_do_fullscreen(!ogl_fullscreen);
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if (ogl_readpixels_ok){
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// glWritePixels(0,0,grd_curscreen->sc_w,grd_curscreen->sc_h,GL_RGB,GL_UNSIGNED_BYTE,buf);
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glRasterPos2f(0,0);
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glDrawPixels(grd_curscreen->sc_w,grd_curscreen->sc_h,GL_RGB,GL_UNSIGNED_BYTE,buf);
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free(buf);
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}
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// grd_curscreen->sc_mode=0;//hack to get it to reset screen mode
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return ogl_fullscreen;
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}
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void ogl_init_state(void){
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/* select clearing (background) color */
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glClearColor(0.0, 0.0, 0.0, 0.0);
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glShadeModel(GL_SMOOTH);
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/* initialize viewing values */
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
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glScalef(1.0, -1.0, 1.0);
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glTranslatef(0.0, -1.0, 0.0);
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gr_palette_step_up(0,0,0);//in case its left over from in game
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}
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int last_screen_mode=-1;
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void ogl_set_screen_mode(void){
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if (last_screen_mode==Screen_mode)
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return;
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OGL_VIEWPORT(0,0,grd_curscreen->sc_w,grd_curscreen->sc_h);
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if (Screen_mode==SCREEN_GAME){
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glDrawBuffer(GL_BACK);
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}else{
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glClearColor(0.0, 0.0, 0.0, 0.0);
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glDrawBuffer(GL_FRONT);
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glClear(GL_COLOR_BUFFER_BIT);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();//clear matrix
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glOrtho(0.0, 1.0, 0.0, 1.0, -1.0, 1.0);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();//clear matrix
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glEnable(GL_BLEND);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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}
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last_screen_mode=Screen_mode;
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}
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void gr_update()
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{
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if (gl_initialized){
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if(Screen_mode != SCREEN_GAME){
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glFlush();
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}
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}
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}
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const char *gl_vendor, *gl_renderer, *gl_version, *gl_extensions;
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void ogl_get_verinfo(void)
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{
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long t;
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#ifdef GL_NV_register_combiners
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long nv_register_combiners = -1;
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#endif
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#if defined(GL_NV_register_combiners) || defined(GL_SGIS_multitexture)
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GLint sgi_max_textures;
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#endif
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#ifdef GL_ARB_multitexture
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GLint arb_max_textures;
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#endif
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float anisotropic_max = 0;
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gl_vendor = (const char *) glGetString (GL_VENDOR);
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gl_renderer = (const char *) glGetString (GL_RENDERER);
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gl_version = (const char *) glGetString (GL_VERSION);
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gl_extensions = (const char *) glGetString (GL_EXTENSIONS);
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con_printf(CON_VERBOSE, "OpenGL: vendor: %s\nOpenGL: renderer: %s\nOpenGL: version: %s\n",gl_vendor,gl_renderer,gl_version);
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ogl_intensity4_ok = 1;
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ogl_luminance4_alpha4_ok = 1;
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ogl_rgba2_ok = 1;
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ogl_gettexlevelparam_ok = 1;
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ogl_setgammaramp_ok = 0;
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#ifdef WGL_VIDEO
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dglMultiTexCoord2fARB = (glMultiTexCoord2fARB_fp)wglGetProcAddress("glMultiTexCoord2fARB");
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dglActiveTextureARB = (glActiveTextureARB_fp)wglGetProcAddress("glActiveTextureARB");
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dglMultiTexCoord2fSGIS = (glMultiTexCoord2fSGIS_fp)wglGetProcAddress("glMultiTexCoord2fSGIS");
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dglSelectTextureSGIS = (glSelectTextureSGIS_fp)wglGetProcAddress("glSelectTextureSGIS");
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dglColorTableEXT = (glColorTableEXT_fp)wglGetProcAddress("glColorTableEXT");
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dglCombinerParameteriNV = (glCombinerParameteriNV_fp)wglGetProcAddress("glCombinerParameteriNV");
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dglCombinerInputNV = (glCombinerInputNV_fp)wglGetProcAddress("glCombinerInputNV");
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dglCombinerOutputNV = (glCombinerOutputNV_fp)wglGetProcAddress("glCombinerOutputNV");
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dglFinalCombinerInputNV = (glFinalCombinerInputNV_fp)wglGetProcAddress("glFinalCombinerInputNV");
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#endif
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#ifdef GL_ARB_multitexture
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ogl_arb_multitexture_ok = (strstr(gl_extensions, "GL_ARB_multitexture") != 0 && glActiveTextureARB != 0);
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mprintf((0,"c:%p d:%p e:%p\n",strstr(gl_extensions,"GL_ARB_multitexture"),glActiveTextureARB,glBegin));
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#endif
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#ifdef GL_SGIS_multitexture
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ogl_sgis_multitexture_ok = (strstr(gl_extensions, "GL_SGIS_multitexture") != 0 && glSelectTextureSGIS != 0);
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mprintf((0,"a:%p b:%p\n",strstr(gl_extensions,"GL_SGIS_multitexture"),glSelectTextureSGIS));
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#endif
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ogl_nv_texture_env_combine4_ok = (strstr(gl_extensions, "GL_NV_texture_env_combine4") != 0);
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#ifdef GL_NV_register_combiners
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ogl_nv_register_combiners_ok=(strstr(gl_extensions,"GL_NV_register_combiners")!=0 && glCombinerOutputNV!=0);
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#endif
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ogl_ext_texture_filter_anisotropic_ok = (strstr(gl_extensions, "GL_EXT_texture_filter_anisotropic") != 0);
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if (ogl_ext_texture_filter_anisotropic_ok)
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glGetFloatv(GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &anisotropic_max);
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#ifdef GL_EXT_paletted_texture
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ogl_paletted_texture_ok = (strstr(gl_extensions, "GL_EXT_paletted_texture") != 0 && glColorTableEXT != 0);
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ogl_shared_palette_ok = (strstr(gl_extensions, "GL_EXT_shared_texture_palette") != 0 && ogl_paletted_texture_ok);
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#endif
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//add driver specific hacks here. whee.
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if ((stricmp(gl_renderer,"Mesa NVIDIA RIVA 1.0\n")==0 || stricmp(gl_renderer,"Mesa NVIDIA RIVA 1.2\n")==0) && stricmp(gl_version,"1.2 Mesa 3.0")==0){
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ogl_intensity4_ok=0;//ignores alpha, always black background instead of transparent.
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ogl_readpixels_ok=0;//either just returns all black, or kills the X server entirely
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ogl_gettexlevelparam_ok=0;//returns random data..
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}
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if (stricmp(gl_vendor,"Matrox Graphics Inc.")==0){
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//displays garbage. reported by
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// redomen@crcwnet.com (render="Matrox G400" version="1.1.3 5.52.015")
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// orulz (Matrox G200)
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ogl_intensity4_ok=0;
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}
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#ifdef macintosh
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if (stricmp(gl_renderer,"3dfx Voodoo 3")==0){ // strangely, includes Voodoo 2
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ogl_gettexlevelparam_ok=0; // Always returns 0
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}
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#endif
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//allow overriding of stuff.
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#ifdef GL_ARB_multitexture
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if ((t=FindArg("-gl_arb_multitexture_ok"))){
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ogl_arb_multitexture_ok=atoi(Args[t+1]);
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}
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if (ogl_arb_multitexture_ok)
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glGetIntegerv(GL_MAX_TEXTURE_UNITS_ARB, &arb_max_textures);
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#endif
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#ifdef GL_SGIS_multitexture
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if ((t=FindArg("-gl_sgis_multitexture_ok"))){
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ogl_sgis_multitexture_ok=atoi(Args[t+1]);
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}
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if (ogl_sgis_multitexture_ok)
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glGetIntegerv(GL_MAX_TEXTURES_SGIS, &sgi_max_textures);
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#endif
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#ifdef GL_NV_register_combiners
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if ((t = FindArg("-gl_nv_register_combiners_ok")))
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{
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ogl_nv_register_combiners_ok=atoi(Args[t + 1]);
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}
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if (ogl_nv_register_combiners_ok)
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glGetIntegerv(GL_MAX_GENERAL_COMBINERS_NV, &nv_register_combiners);
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#endif
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#ifdef GL_EXT_paletted_texture
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if ((t = FindArg("-gl_paletted_texture_ok")))
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{
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ogl_paletted_texture_ok = atoi(Args[t + 1]);
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}
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if ((t = FindArg("-gl_shared_palette_ok")))
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{
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ogl_shared_palette_ok = atoi(Args[t + 1]);
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}
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ogl_shared_palette_ok = ogl_shared_palette_ok && ogl_paletted_texture_ok; // shared palettes require palette support in the first place, obviously ;)
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printf("gl_paletted_texture: %i gl_shared_palette: %i (using paletted textures: %i)\n", ogl_paletted_texture_ok, ogl_shared_palette_ok, ogl_shared_palette_ok);
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#endif
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if ((t=FindArg("-gl_intensity4_ok"))){
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ogl_intensity4_ok=atoi(Args[t+1]);
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}
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if ((t=FindArg("-gl_luminance4_alpha4_ok"))){
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ogl_luminance4_alpha4_ok=atoi(Args[t+1]);
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}
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if ((t=FindArg("-gl_rgba2_ok"))){
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ogl_rgba2_ok=atoi(Args[t+1]);
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}
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if ((t=FindArg("-gl_readpixels_ok"))){
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ogl_readpixels_ok=atoi(Args[t+1]);
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}
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if ((t=FindArg("-gl_gettexlevelparam_ok"))){
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ogl_gettexlevelparam_ok=atoi(Args[t+1]);
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}
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if ((t=FindArg("-gl_setgammaramp_ok")))
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{
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ogl_setgammaramp_ok = atoi(Args[t + 1]);
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}
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if ((t=FindArg("-gl_scissor_ok")))
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{
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ogl_scissor_ok = atoi(Args[t + 1]);
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}
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#ifdef GL_NV_register_combiners
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con_printf(CON_VERBOSE, "gl_arb_multitexture:%i(%i units) gl_sgis_multitexture:%i(%i units) gl_nv_texture_env_combine4:%i\n", ogl_arb_multitexture_ok, arb_max_textures, ogl_sgis_multitexture_ok, sgi_max_textures, ogl_nv_texture_env_combine4_ok); // ZICO - moved this to this ifdef
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con_printf(CON_VERBOSE, "gl_nv_register_combiners:%i(%i stages)\n", ogl_nv_register_combiners_ok, nv_register_combiners);
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#endif
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con_printf(CON_VERBOSE, "gl_intensity4:%i gl_luminance4_alpha4:%i gl_rgba2:%i gl_readpixels:%i gl_gettexlevelparam:%i gl_setgammaramp_ok:%i gl_ext_texture_filter_anisotropic:%i(%f max) gl_scissor_ok:%i\n", ogl_intensity4_ok, ogl_luminance4_alpha4_ok, ogl_rgba2_ok, ogl_readpixels_ok, ogl_gettexlevelparam_ok, ogl_setgammaramp_ok, ogl_ext_texture_filter_anisotropic_ok, anisotropic_max,ogl_scissor_ok);
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}
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int gr_check_mode(u_int32_t mode)
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{
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int w, h;
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w = SM_W(mode);
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h = SM_H(mode);
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return ogl_check_mode(w, h); // platform specific code
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}
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extern int VGA_current_mode; // DPH: kludge - remove at all costs
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int gr_set_mode(u_int32_t mode)
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{
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unsigned int w, h;
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int aw, ah;
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char *gr_bm_data;
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float awidth = 3, aheight = 4;
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int i, argnum = INT_MAX;
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#ifdef NOGRAPH
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return 0;
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#endif
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// mode=0;
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if (mode<=0)
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return 0;
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w=SM_W(mode);
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h=SM_H(mode);
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VGA_current_mode = mode;
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//if (screen != NULL) gr_palette_clear();
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// ogl_init_state();
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if ((i=FindResArg("aspect", &ah, &aw)) && (i < argnum)) { argnum = i; awidth=aw; aheight=ah; }
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gr_bm_data=(char *)grd_curscreen->sc_canvas.cv_bitmap.bm_data;//since we use realloc, we want to keep this pointer around.
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memset( grd_curscreen, 0, sizeof(grs_screen));
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grd_curscreen->sc_mode = mode;
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grd_curscreen->sc_w = w;
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grd_curscreen->sc_h = h;
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grd_curscreen->sc_aspect = fixdiv(grd_curscreen->sc_w*awidth,grd_curscreen->sc_h*aheight);
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grd_curscreen->sc_canvas.cv_bitmap.bm_x = 0;
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grd_curscreen->sc_canvas.cv_bitmap.bm_y = 0;
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grd_curscreen->sc_canvas.cv_bitmap.bm_w = w;
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grd_curscreen->sc_canvas.cv_bitmap.bm_h = h;
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//grd_curscreen->sc_canvas.cv_bitmap.bm_rowsize = screen->pitch;
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grd_curscreen->sc_canvas.cv_bitmap.bm_rowsize = w;
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grd_curscreen->sc_canvas.cv_bitmap.bm_type = BM_OGL;
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//grd_curscreen->sc_canvas.cv_bitmap.bm_data = (unsigned char *)screen->pixels;
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// mprintf((0,"ogl/gr.c: reallocing %p to %i\n",grd_curscreen->sc_canvas.cv_bitmap.bm_data,w*h));
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grd_curscreen->sc_canvas.cv_bitmap.bm_data = d_realloc(gr_bm_data,w*h);
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gr_set_current_canvas(NULL);
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//gr_enable_default_palette_loading();
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ogl_init_window(w,h);//platform specific code
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ogl_get_verinfo();
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OGL_VIEWPORT(0,0,w,h);
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ogl_set_screen_mode();
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gr_update();
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// gamefont_choose_game_font(w,h);
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return 0;
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}
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#define GLstrcmptestr(a,b) if (stricmp(a,#b)==0 || stricmp(a,"GL_" #b)==0)return GL_ ## b;
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int ogl_atotexfilti(char *a,int min){
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GLstrcmptestr(a,NEAREST);
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GLstrcmptestr(a,LINEAR);
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if (min){//mipmaps are valid only for the min filter
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GLstrcmptestr(a,NEAREST_MIPMAP_NEAREST);
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GLstrcmptestr(a,NEAREST_MIPMAP_LINEAR);
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GLstrcmptestr(a,LINEAR_MIPMAP_NEAREST);
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GLstrcmptestr(a,LINEAR_MIPMAP_LINEAR);
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}
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Error("unknown/invalid texture filter %s\n",a);
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// return GL_NEAREST;
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}
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int ogl_testneedmipmaps(int i){
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switch (i){
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case GL_NEAREST:
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case GL_LINEAR:
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return 0;
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case GL_NEAREST_MIPMAP_NEAREST:
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case GL_NEAREST_MIPMAP_LINEAR:
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case GL_LINEAR_MIPMAP_NEAREST:
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case GL_LINEAR_MIPMAP_LINEAR:
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return 1;
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}
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Error("unknown texture filter %x\n",i);
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// return -1;
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}
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#ifdef OGL_RUNTIME_LOAD
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#ifdef _WIN32
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char *OglLibPath="opengl32.dll";
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#endif
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#ifdef __unix__
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char *OglLibPath="libGL.so";
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#endif
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#ifdef macintosh
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char *OglLibPath = NULL;
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#endif
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int ogl_rt_loaded=0;
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int ogl_init_load_library(void)
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{
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int retcode=0;
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if (!ogl_rt_loaded){
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int t;
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if ((t=FindArg("-gl_library")))
|
|
OglLibPath=Args[t+1];
|
|
|
|
retcode = OpenGL_LoadLibrary(true);
|
|
if(retcode)
|
|
{
|
|
mprintf((0,"Opengl loaded ok\n"));
|
|
|
|
if(!glEnd)
|
|
{
|
|
Error("Opengl: Functions not imported\n");
|
|
}
|
|
}else{
|
|
Error("Opengl: error loading %s\n", OglLibPath? OglLibPath : SDL_GetError());
|
|
}
|
|
ogl_rt_loaded=1;
|
|
}
|
|
return retcode;
|
|
}
|
|
#endif
|
|
|
|
int gr_init()
|
|
{
|
|
int mode = SM(640,480);
|
|
int retcode, t, glt = 0;
|
|
|
|
// Only do this function once!
|
|
if (gr_installed==1)
|
|
return -1;
|
|
|
|
|
|
#ifdef OGL_RUNTIME_LOAD
|
|
ogl_init_load_library();
|
|
#endif
|
|
|
|
#ifdef GR_SUPPORTS_FULLSCREEN_TOGGLE
|
|
if (FindArg("-gl_voodoo")){
|
|
ogl_voodoohack=1;
|
|
gr_toggle_fullscreen();
|
|
}
|
|
// if (FindArg("-fullscreen"))
|
|
if (!(FindArg("-window"))) // ZICO - from window to fullscreen
|
|
gr_toggle_fullscreen();
|
|
#endif
|
|
if ((glt=FindArg("-gl_alttexmerge")))
|
|
ogl_alttexmerge=1;
|
|
if ((t=FindArg("-gl_stdtexmerge")))
|
|
if (t>=glt)//allow overriding of earlier args
|
|
ogl_alttexmerge=0;
|
|
|
|
if ((glt = FindArg("-gl_16bittextures")))
|
|
{
|
|
ogl_rgba_internalformat = GL_RGB5_A1;
|
|
ogl_rgb_internalformat = GL_RGB5;
|
|
}
|
|
|
|
if ((glt=FindArg("-gl_mipmap"))){
|
|
GL_texmagfilt=GL_LINEAR;
|
|
GL_texminfilt=GL_LINEAR_MIPMAP_NEAREST;
|
|
}
|
|
if ((glt=FindArg("-gl_trilinear")))
|
|
{
|
|
GL_texmagfilt = GL_LINEAR;
|
|
GL_texminfilt = GL_LINEAR_MIPMAP_LINEAR;
|
|
}
|
|
if ((t=FindArg("-gl_simple"))){
|
|
if (t>=glt){//allow overriding of earlier args
|
|
glt=t;
|
|
GL_texmagfilt=GL_NEAREST;
|
|
GL_texminfilt=GL_NEAREST;
|
|
}
|
|
}
|
|
if ((t=FindArg("-gl_texmagfilt")) || (t=FindArg("-gl_texmagfilter"))){
|
|
if (t>=glt)//allow overriding of earlier args
|
|
GL_texmagfilt=ogl_atotexfilti(Args[t+1],0);
|
|
}
|
|
if ((t=FindArg("-gl_texminfilt")) || (t=FindArg("-gl_texminfilter"))){
|
|
if (t>=glt)//allow overriding of earlier args
|
|
GL_texminfilt=ogl_atotexfilti(Args[t+1],1);
|
|
}
|
|
GL_needmipmaps=ogl_testneedmipmaps(GL_texminfilt);
|
|
|
|
if ((t = FindArg("-gl_anisotropy")) || (t = FindArg("-gl_anisotropic")))
|
|
{
|
|
GL_texanisofilt=atof(Args[t + 1]);
|
|
}
|
|
|
|
mprintf((0,"gr_init: texmagfilt:%x texminfilt:%x needmipmaps=%i anisotropic:%f\n",GL_texmagfilt,GL_texminfilt,GL_needmipmaps,GL_texanisofilt));
|
|
|
|
|
|
if ((t=FindArg("-gl_vidmem"))){
|
|
ogl_mem_target=atoi(Args[t+1])*1024*1024;
|
|
}
|
|
if ((t=FindArg("-gl_reticle"))){
|
|
gl_reticle=atoi(Args[t+1]);
|
|
}
|
|
//printf("ogl_mem_target=%i\n",ogl_mem_target);
|
|
|
|
ogl_init();//platform specific initialization
|
|
|
|
ogl_init_texture_list_internal();
|
|
|
|
MALLOC( grd_curscreen,grs_screen,1 );
|
|
memset( grd_curscreen, 0, sizeof(grs_screen));
|
|
grd_curscreen->sc_canvas.cv_bitmap.bm_data = NULL;
|
|
|
|
// Set the mode.
|
|
if ((retcode=gr_set_mode(mode)))
|
|
{
|
|
return retcode;
|
|
}
|
|
|
|
grd_curscreen->sc_canvas.cv_color = 0;
|
|
grd_curscreen->sc_canvas.cv_drawmode = 0;
|
|
grd_curscreen->sc_canvas.cv_font = NULL;
|
|
grd_curscreen->sc_canvas.cv_font_fg_color = 0;
|
|
grd_curscreen->sc_canvas.cv_font_bg_color = 0;
|
|
gr_set_current_canvas( &grd_curscreen->sc_canvas );
|
|
|
|
gr_installed = 1;
|
|
|
|
atexit(gr_close);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void gr_close()
|
|
{
|
|
// mprintf((0,"ogl init: %s %s %s - %s\n",glGetString(GL_VENDOR),glGetString(GL_RENDERER),glGetString(GL_VERSION),glGetString,(GL_EXTENSIONS)));
|
|
ogl_brightness_r = ogl_brightness_g = ogl_brightness_b = 0;
|
|
ogl_setbrightness_internal();
|
|
|
|
ogl_close();//platform specific code
|
|
if (grd_curscreen){
|
|
if (grd_curscreen->sc_canvas.cv_bitmap.bm_data)
|
|
d_free(grd_curscreen->sc_canvas.cv_bitmap.bm_data);
|
|
d_free(grd_curscreen);
|
|
}
|
|
#ifdef OGL_RUNTIME_LOAD
|
|
if (ogl_rt_loaded)
|
|
OpenGL_LoadLibrary(false);
|
|
#endif
|
|
}
|
|
extern int r_upixelc;
|
|
void ogl_upixelc(int x, int y, int c){
|
|
r_upixelc++;
|
|
// printf("gr_upixelc(%i,%i,%i)%i\n",x,y,c,Function_mode==FMODE_GAME);
|
|
// if(Function_mode != FMODE_GAME){
|
|
// grd_curcanv->cv_bitmap.bm_data[y*grd_curscreen->sc_canvas.cv_bitmap.bm_w+x]=c;
|
|
// }else{
|
|
OGL_DISABLE(TEXTURE_2D);
|
|
glPointSize(1.0);
|
|
glBegin(GL_POINTS);
|
|
// glBegin(GL_LINES);
|
|
// ogl_pal=gr_current_pal;
|
|
glColor3f(CPAL2Tr(c),CPAL2Tg(c),CPAL2Tb(c));
|
|
// ogl_pal=gr_palette;
|
|
glVertex2f((x + grd_curcanv->cv_bitmap.bm_x + 0.5) / (float)last_width, 1.0 - (y + grd_curcanv->cv_bitmap.bm_y + 0.5) / (float)last_height);
|
|
// glVertex2f(x/((float)last_width+1),1.0-y/((float)last_height+1));
|
|
glEnd();
|
|
// }
|
|
}
|
|
void ogl_urect(int left,int top,int right,int bot){
|
|
GLfloat xo,yo,xf,yf;
|
|
int c=COLOR;
|
|
|
|
xo=(left+grd_curcanv->cv_bitmap.bm_x)/(float)last_width;
|
|
xf = (right + 1 + grd_curcanv->cv_bitmap.bm_x) / (float)last_width;
|
|
yo=1.0-(top+grd_curcanv->cv_bitmap.bm_y)/(float)last_height;
|
|
yf = 1.0 - (bot + 1 + grd_curcanv->cv_bitmap.bm_y) / (float)last_height;
|
|
|
|
OGL_DISABLE(TEXTURE_2D);
|
|
if (Gr_scanline_darkening_level >= GR_FADE_LEVELS)
|
|
glColor3f(CPAL2Tr(c), CPAL2Tg(c), CPAL2Tb(c));
|
|
else
|
|
glColor4f(CPAL2Tr(c), CPAL2Tg(c), CPAL2Tb(c), 1.0 - (float)Gr_scanline_darkening_level / ((float)GR_FADE_LEVELS - 1.0));
|
|
glBegin(GL_QUADS);
|
|
glVertex2f(xo,yo);
|
|
glVertex2f(xo,yf);
|
|
glVertex2f(xf,yf);
|
|
glVertex2f(xf,yo);
|
|
glEnd();
|
|
}
|
|
void ogl_ulinec(int left,int top,int right,int bot,int c){
|
|
GLfloat xo,yo,xf,yf;
|
|
|
|
xo = (left + grd_curcanv->cv_bitmap.bm_x + 0.5) / (float)last_width;
|
|
xf = (right + grd_curcanv->cv_bitmap.bm_x + 0.5) / (float)last_width;
|
|
yo = 1.0 - (top + grd_curcanv->cv_bitmap.bm_y + 0.5) / (float)last_height;
|
|
yf = 1.0 - (bot + grd_curcanv->cv_bitmap.bm_y + 0.5) / (float)last_height;
|
|
|
|
OGL_DISABLE(TEXTURE_2D);
|
|
glColor3f(CPAL2Tr(c),CPAL2Tg(c),CPAL2Tb(c));
|
|
glBegin(GL_LINES);
|
|
glVertex2f(xo,yo);
|
|
glVertex2f(xf,yf);
|
|
glEnd();
|
|
}
|
|
|
|
|
|
GLfloat last_r=0, last_g=0, last_b=0;
|
|
int do_pal_step=0;
|
|
void ogl_do_palfx(void){
|
|
// GLfloat r,g,b,a;
|
|
OGL_DISABLE(TEXTURE_2D);
|
|
if (gr_palette_faded_out){
|
|
/* glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);*/
|
|
glColor3f(0,0,0);
|
|
// r=g=b=0.0;a=1.0;
|
|
}else{
|
|
if (do_pal_step){
|
|
//glBlendFunc(GL_SRC_COLOR, GL_DST_COLOR);
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_ONE,GL_ONE);
|
|
glColor3f(last_r,last_g,last_b);
|
|
// r=f2fl(last_r);g=f2fl(last_g);b=f2fl(last_b);a=0.5;
|
|
}else
|
|
return;
|
|
}
|
|
|
|
|
|
glBegin(GL_QUADS);
|
|
glVertex2f(0,0);
|
|
glVertex2f(0,1);
|
|
glVertex2f(1,1);
|
|
glVertex2f(1,0);
|
|
glEnd();
|
|
|
|
glEnable(GL_BLEND);
|
|
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
}
|
|
|
|
void gr_palette_clear()
|
|
{
|
|
gr_palette_faded_out=1;
|
|
}
|
|
|
|
|
|
int ogl_brightness_ok = 0;
|
|
int ogl_setgammaramp_ok = 0;
|
|
int ogl_brightness_r = 0, ogl_brightness_g = 0, ogl_brightness_b = 0;
|
|
static int old_b_r = 0, old_b_g = 0, old_b_b = 0;
|
|
|
|
void gr_palette_step_up(int r, int g, int b)
|
|
{
|
|
if (gr_palette_faded_out)
|
|
return;
|
|
|
|
old_b_r = ogl_brightness_r;
|
|
old_b_g = ogl_brightness_g;
|
|
old_b_b = ogl_brightness_b;
|
|
|
|
ogl_brightness_r = max(r + gr_palette_gamma, 0);
|
|
ogl_brightness_g = max(g + gr_palette_gamma, 0);
|
|
ogl_brightness_b = max(b + gr_palette_gamma, 0);
|
|
|
|
if (ogl_setgammaramp_ok &&
|
|
(old_b_r != ogl_brightness_r ||
|
|
old_b_g != ogl_brightness_g ||
|
|
old_b_b != ogl_brightness_b))
|
|
ogl_brightness_ok = !ogl_setbrightness_internal();
|
|
|
|
if (!ogl_setgammaramp_ok || !ogl_brightness_ok)
|
|
{
|
|
last_r = ogl_brightness_r / 63.0;
|
|
last_g = ogl_brightness_g / 63.0;
|
|
last_b = ogl_brightness_b / 63.0;
|
|
|
|
do_pal_step = (r || g || b || gr_palette_gamma);
|
|
}
|
|
else
|
|
{
|
|
do_pal_step = 0;
|
|
}
|
|
}
|
|
|
|
//added on 980913 by adb to fix palette problems
|
|
// need a min without side effects...
|
|
#undef min
|
|
static inline int min(int x, int y) { return x < y ? x : y; }
|
|
//end changes by adb
|
|
|
|
void gr_palette_load( ubyte *pal )
|
|
{
|
|
int i;//, j;
|
|
|
|
for (i=0; i<768; i++ ) {
|
|
gr_current_pal[i] = pal[i];
|
|
if (gr_current_pal[i] > 63) gr_current_pal[i] = 63;
|
|
}
|
|
//palette = screen->format->palette;
|
|
|
|
gr_palette_faded_out=0;
|
|
|
|
gr_palette_step_up(0, 0, 0); // make ogl_setbrightness_internal get run so that menus get brightened too.
|
|
|
|
init_computed_colors();
|
|
|
|
ogl_init_shared_palette();
|
|
}
|
|
|
|
|
|
|
|
int gr_palette_fade_out(ubyte *pal, int nsteps, int allow_keys)
|
|
{
|
|
gr_palette_faded_out=1;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
int gr_palette_fade_in(ubyte *pal, int nsteps, int allow_keys)
|
|
{
|
|
gr_palette_faded_out=0;
|
|
return 0;
|
|
}
|
|
|
|
|
|
|
|
void gr_palette_read(ubyte * pal)
|
|
{
|
|
int i;
|
|
for (i=0; i<768; i++ ) {
|
|
pal[i]=gr_current_pal[i];
|
|
if (pal[i] > 63) pal[i] = 63;
|
|
}
|
|
}
|
|
|
|
#define GL_BGR_EXT 0x80E0
|
|
|
|
typedef struct {
|
|
unsigned char TGAheader[12];
|
|
unsigned char header[6];
|
|
} TGA_header;
|
|
|
|
//writes out an uncompressed RGB .tga file
|
|
//if we got really spiffy, we could optionally link in libpng or something, and use that.
|
|
void write_bmp(char *savename,int w,int h,unsigned char *buf){
|
|
PHYSFS_file* TGAFile;
|
|
TGA_header TGA;
|
|
GLbyte HeightH,HeightL,WidthH,WidthL;
|
|
|
|
buf = (unsigned char*)calloc(w*h*3,sizeof(unsigned char));
|
|
|
|
glReadPixels(0,0,w,h,GL_BGR_EXT,GL_UNSIGNED_BYTE,buf);
|
|
|
|
TGAFile = PHYSFSX_openWriteBuffered(savename);
|
|
|
|
HeightH = (GLbyte)(h / 256);
|
|
HeightL = (GLbyte)(h % 256);
|
|
WidthH = (GLbyte)(w / 256);
|
|
WidthL = (GLbyte)(w % 256);
|
|
// Write TGA Header
|
|
TGA.TGAheader[0] = 0;
|
|
TGA.TGAheader[1] = 0;
|
|
TGA.TGAheader[2] = 2;
|
|
TGA.TGAheader[3] = 0;
|
|
TGA.TGAheader[4] = 0;
|
|
TGA.TGAheader[5] = 0;
|
|
TGA.TGAheader[6] = 0;
|
|
TGA.TGAheader[7] = 0;
|
|
TGA.TGAheader[8] = 0;
|
|
TGA.TGAheader[9] = 0;
|
|
TGA.TGAheader[10] = 0;
|
|
TGA.TGAheader[11] = 0;
|
|
TGA.header[0] = (GLbyte) WidthL;
|
|
TGA.header[1] = (GLbyte) WidthH;
|
|
TGA.header[2] = (GLbyte) HeightL;
|
|
TGA.header[3] = (GLbyte) HeightH;
|
|
TGA.header[4] = (GLbyte) 24;
|
|
TGA.header[5] = 0;
|
|
PHYSFS_write(TGAFile,&TGA,sizeof(TGA_header),1);
|
|
PHYSFS_write(TGAFile,buf,w*h*3*sizeof(unsigned char),1);
|
|
PHYSFS_close(TGAFile);
|
|
free(buf);
|
|
}
|
|
|
|
void save_screen_shot(int automap_flag)
|
|
{
|
|
// fix t1;
|
|
char message[100];
|
|
static int savenum=0;
|
|
char savename[13];
|
|
unsigned char *buf;
|
|
|
|
if (!ogl_readpixels_ok){
|
|
if (!automap_flag)
|
|
hud_message(MSGC_GAME_FEEDBACK,"glReadPixels not supported on your configuration");
|
|
return;
|
|
}
|
|
|
|
stop_time();
|
|
|
|
//added/changed on 10/31/98 by Victor Rachels to fix overwrite each new game
|
|
do
|
|
{
|
|
if (savenum == 9999)
|
|
savenum = 0;
|
|
sprintf(savename, "scrn%04d.tga", savenum++);
|
|
} while (PHYSFS_exists(savename));
|
|
|
|
sprintf( message, "%s '%s'", TXT_DUMPING_SCREEN, savename );
|
|
//end this section addition/change - Victor Rachels
|
|
|
|
if (automap_flag) {
|
|
} else {
|
|
hud_message(MSGC_GAME_FEEDBACK,message);
|
|
}
|
|
|
|
buf = malloc(grd_curscreen->sc_w*grd_curscreen->sc_h*3);
|
|
glReadBuffer(GL_FRONT);
|
|
// glReadPixels(0,0,grd_curscreen->sc_w,grd_curscreen->sc_h,GL_RGB,GL_UNSIGNED_BYTE,buf);
|
|
write_bmp(savename,grd_curscreen->sc_w,grd_curscreen->sc_h,buf);
|
|
free(buf);
|
|
|
|
key_flush();
|
|
start_time();
|
|
}
|