+/*
+ vid_3dfxsvga.c
+
+ OpenGL device driver for 3Dfx chipsets running Linux
+
+ Copyright (C) 1996-1997 Id Software, Inc.
+ Copyright (C) 1999,2000 Nelson Rush.
+ Copyright (C) 1999,2000 contributors of the QuakeForge project
+ Please see the file "AUTHORS" for a list of contributors
+
+ 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:
+
+ Free Software Foundation, Inc.
+ 59 Temple Place - Suite 330
+ Boston, MA 02111-1307, USA
+
+ $Id$
+*/
+
+#include "quakedef.h"
+#include "sys.h"
+#include "console.h"
+#include "sbar.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <string.h>
+
+#include <dlfcn.h>
+
+#include <GL/gl.h>
+#include <GL/fxmesa.h>
+#include <glide/sst1vid.h>
+
+#define WARP_WIDTH 320
+#define WARP_HEIGHT 200
+
+
+//unsigned short d_8to16table[256];
+unsigned d_8to24table[256];
+unsigned char d_15to8table[65536];
+
+cvar_t vid_mode = {"vid_mode","0",false};
+
+viddef_t vid; // global video state
+
+static void *dlhand = NULL;
+
+static fxMesaContext fc = NULL;
+static int scr_width, scr_height;
+
+int VID_options_items = 0;
+
+/*-----------------------------------------------------------------------*/
+
+//int texture_mode = GL_NEAREST;
+//int texture_mode = GL_NEAREST_MIPMAP_NEAREST;
+//int texture_mode = GL_NEAREST_MIPMAP_LINEAR;
+int texture_mode = GL_LINEAR;
+//int texture_mode = GL_LINEAR_MIPMAP_NEAREST;
+//int texture_mode = GL_LINEAR_MIPMAP_LINEAR;
+
+int texture_extension_number = 1;
+
+float gldepthmin, gldepthmax;
+
+const char *gl_vendor;
+const char *gl_renderer;
+const char *gl_version;
+const char *gl_extensions;
+
+void (*qglColorTableEXT) (int, int, int, int, int, const void*);
+void (*qgl3DfxSetPaletteEXT) (GLuint *);
+void (*qglMTexCoord2f) (GLenum, GLfloat, GLfloat);
+void (*qglSelectTexture) (GLenum);
+
+int gl_mtex_enum = 0;
+
+// LordHavoc: in GLX these are never set, simply provided to make the rest of the code work
+qboolean is8bit = false;
+qboolean isPermedia = false;
+qboolean isATI = false;
+qboolean isG200 = false;
+qboolean isRagePro = false;
+qboolean gl_mtexable = false;
+qboolean gl_arrays = false;
+
+/*-----------------------------------------------------------------------*/
+void D_BeginDirectRect (int x, int y, byte *pbitmap, int width, int height)
+{
+}
+
+void D_EndDirectRect (int x, int y, int width, int height)
+{
+}
+
+void VID_Shutdown(void)
+{
+ if (!fc)
+ return;
+
+ fxMesaDestroyContext(fc);
+}
+
+void signal_handler(int sig)
+{
+ printf("Received signal %d, exiting...\n", sig);
+ Host_Shutdown();
+ abort();
+ //Sys_Quit();
+ exit(0);
+}
+
+void InitSig(void)
+{
+ signal(SIGHUP, signal_handler);
+ signal(SIGINT, signal_handler);
+ signal(SIGQUIT, signal_handler);
+ signal(SIGILL, signal_handler);
+ signal(SIGTRAP, signal_handler);
+// signal(SIGIOT, signal_handler);
+ signal(SIGBUS, signal_handler);
+// signal(SIGFPE, signal_handler);
+ signal(SIGSEGV, signal_handler);
+ signal(SIGTERM, signal_handler);
+}
+
+/*
+ CheckMultiTextureExtensions
+
+ Check for ARB, SGIS, or EXT multitexture support
+*/
+void
+CheckMultiTextureExtensions ( void )
+{
+ Con_Printf ("Checking for multitexture... ");
+ if (COM_CheckParm ("-nomtex"))
+ {
+ Con_Printf ("disabled\n");
+ return;
+ }
+ dlhand = dlopen (NULL, RTLD_LAZY);
+ if (dlhand == NULL)
+ {
+ Con_Printf ("unable to check\n");
+ return;
+ }
+ if (strstr(gl_extensions, "GL_ARB_multitexture "))
+ {
+ Con_Printf ("GL_ARB_multitexture\n");
+ qglMTexCoord2f = (void *)dlsym(dlhand, "glMultiTexCoord2fARB");
+ qglSelectTexture = (void *)dlsym(dlhand, "glActiveTextureARB");
+ gl_mtex_enum = GL_TEXTURE0_ARB;
+ gl_mtexable = true;
+ } else if (strstr(gl_extensions, "GL_SGIS_multitexture "))
+ {
+ Con_Printf ("GL_SGIS_multitexture\n");
+ qglMTexCoord2f = (void *)dlsym(dlhand, "glMTexCoord2fSGIS");
+ qglSelectTexture = (void *)dlsym(dlhand, "glSelectTextureSGIS");
+ gl_mtex_enum = TEXTURE0_SGIS;
+ gl_mtexable = true;
+ } else {
+ Con_Printf ("none found\n");
+ }
+ dlclose(dlhand);
+ dlhand = NULL;
+}
+
+
+typedef void (GLAPIENTRY *gl3DfxSetDitherModeEXT_FUNC) (GrDitherMode_t mode);
+
+/*
+===============
+GL_Init
+===============
+*/
+void GL_Init (void)
+{
+ gl_vendor = glGetString (GL_VENDOR);
+ Con_Printf ("GL_VENDOR: %s\n", gl_vendor);
+ gl_renderer = glGetString (GL_RENDERER);
+ Con_Printf ("GL_RENDERER: %s\n", gl_renderer);
+
+ gl_version = glGetString (GL_VERSION);
+ Con_Printf ("GL_VERSION: %s\n", gl_version);
+ gl_extensions = glGetString (GL_EXTENSIONS);
+ Con_Printf ("GL_EXTENSIONS: %s\n", gl_extensions);
+
+ CheckMultiTextureExtensions ();
+
+ glClearColor (1,0,0,0);
+ glCullFace(GL_FRONT);
+ glEnable(GL_TEXTURE_2D);
+
+ glEnable(GL_ALPHA_TEST);
+ glAlphaFunc(GL_GREATER, 0.666);
+
+ glPolygonMode (GL_FRONT_AND_BACK, GL_FILL);
+ glShadeModel (GL_FLAT);
+
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
+ glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
+
+ glBlendFunc (GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+
+ glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
+
+ Con_Printf ("Dithering: ");
+
+ dlhand = dlopen (NULL, RTLD_LAZY);
+
+ if (dlhand == NULL) {
+ Con_SafePrintf ("unable to set.\n");
+ return;
+ }
+
+ if (strstr(gl_extensions, "3DFX_set_dither_mode")) {
+ gl3DfxSetDitherModeEXT_FUNC dither_select = NULL;
+
+ dither_select = (void *) dlsym(dlhand, "gl3DfxSetDitherModeEXT");
+
+ if (COM_CheckParm ("-dither_2x2")) {
+ dither_select(GR_DITHER_2x2);
+ Con_Printf ("2x2.\n");
+ } else if (COM_CheckParm ("-dither_4x4")) {
+ dither_select(GR_DITHER_4x4);
+ Con_Printf ("4x4.\n");
+ } else {
+ glDisable(GL_DITHER);
+ Con_Printf ("disabled.\n");
+ }
+ }
+ dlclose(dlhand);
+ dlhand = NULL;
+}
+
+/*
+=================
+GL_BeginRendering
+
+=================
+*/
+void GL_BeginRendering (int *x, int *y, int *width, int *height)
+{
+ *x = *y = 0;
+ *width = scr_width;
+ *height = scr_height;
+
+// if (!wglMakeCurrent( maindc, baseRC ))
+// Sys_Error ("wglMakeCurrent failed");
+
+// glViewport (*x, *y, *width, *height);
+}
+
+
+void GL_EndRendering (void)
+{
+ glFlush();
+ fxMesaSwapBuffers();
+}
+
+static int resolutions[][3]={
+ { 320, 200, GR_RESOLUTION_320x200 },
+ { 320, 240, GR_RESOLUTION_320x240 },
+ { 400, 256, GR_RESOLUTION_400x256 },
+ { 400, 300, GR_RESOLUTION_400x300 },
+ { 512, 256, GR_RESOLUTION_512x256 },
+ { 512, 384, GR_RESOLUTION_512x384 },
+ { 640, 200, GR_RESOLUTION_640x200 },
+ { 640, 350, GR_RESOLUTION_640x350 },
+ { 640, 400, GR_RESOLUTION_640x400 },
+ { 640, 480, GR_RESOLUTION_640x480 },
+ { 800, 600, GR_RESOLUTION_800x600 },
+ { 856, 480, GR_RESOLUTION_856x480 },
+ { 960, 720, GR_RESOLUTION_960x720 },
+#ifdef GR_RESOLUTION_1024x768
+ { 1024, 768, GR_RESOLUTION_1024x768 },
+#endif
+#ifdef GR_RESOLUTION_1152x864
+ { 1152, 864, GR_RESOLUTION_1152x864 },
+#endif
+#ifdef GR_RESOLUTION_1280x960
+ { 1280, 960, GR_RESOLUTION_1280x960 },
+#endif
+#ifdef GR_RESOLUTION_1280x1024
+ { 1280, 1024, GR_RESOLUTION_1280x1024 },
+#endif
+#ifdef GR_RESOLUTION_1600x1024
+ { 1600, 1024, GR_RESOLUTION_1600x1024 },
+#endif
+#ifdef GR_RESOLUTION_1600x1200
+ { 1600, 1200, GR_RESOLUTION_1600x1200 },
+#endif
+#ifdef GR_RESOLUTION_1792x1344
+ { 1792, 1344, GR_RESOLUTION_1792x1344 },
+#endif
+#ifdef GR_RESOLUTION_1856x1392
+ { 1856, 1392, GR_RESOLUTION_1856x1392 },
+#endif
+#ifdef GR_RESOLUTION_1920x1440
+ { 1920, 1440, GR_RESOLUTION_1920x1440 },
+#endif
+#ifdef GR_RESOLUTION_2048x1536
+ { 2048, 1536, GR_RESOLUTION_2048x1536 },
+#endif
+#ifdef GR_RESOLUTION_2048x2048
+ { 2048, 2048, GR_RESOLUTION_2048x2048 }
+#endif
+};
+
+#define NUM_RESOLUTIONS (sizeof(resolutions)/(sizeof(int)*3))
+
+
+static int
+findres(int *width, int *height)
+{
+ int i;
+
+ for(i=0; i < NUM_RESOLUTIONS; i++) {
+ if((*width <= resolutions[i][0]) &&
+ (*height <= resolutions[i][1])) {
+ *width = resolutions[i][0];
+ *height = resolutions[i][1];
+ return resolutions[i][2];
+ }
+ }
+
+ *width = 640;
+ *height = 480;
+ return GR_RESOLUTION_640x480;
+}
+
+qboolean VID_Is8bit(void)
+{
+ return is8bit;
+}
+
+typedef void (GLAPIENTRY *glColorTableEXT_FUNC) (GLenum, GLenum, GLsizei,
+ GLenum, GLenum, const GLvoid *);
+typedef void (GLAPIENTRY *gl3DfxSetPaletteEXT_FUNC) (GLuint *pal);
+
+void VID_Init8bitPalette()
+{
+ // Check for 8bit Extensions and initialize them.
+ int i;
+
+ dlhand = dlopen (NULL, RTLD_LAZY);
+
+ Con_SafePrintf ("8-bit GL extensions: ");
+
+ if (dlhand == NULL) {
+ Con_SafePrintf ("unable to check.\n");
+ return;
+ }
+
+ if (COM_CheckParm("-no8bit")) {
+ Con_SafePrintf("disabled.\n");
+ return;
+ }
+
+ if (strstr(gl_extensions, "3DFX_set_global_palette") && (qgl3DfxSetPaletteEXT = dlsym(dlhand, "gl3DfxSetPaletteEXT")) != NULL)
+ {
+ GLubyte table[256][4];
+ char *oldpal;
+
+ Con_SafePrintf("3DFX_set_global_palette.\n");
+ glEnable( GL_SHARED_TEXTURE_PALETTE_EXT );
+ oldpal = (char *) d_8to24table; //d_8to24table3dfx;
+ for (i=0;i<256;i++)
+ {
+ table[i][2] = *oldpal++;
+ table[i][1] = *oldpal++;
+ table[i][0] = *oldpal++;
+ table[i][3] = 255;
+ oldpal++;
+ }
+ qgl3DfxSetPaletteEXT((GLuint *)table);
+ is8bit = true;
+ } else if (strstr(gl_extensions, "GL_EXT_shared_texture_palette")) {
+ char thePalette[256*3];
+ char *oldPalette, *newPalette;
+ glColorTableEXT_FUNC load_texture = NULL;
+
+ Con_SafePrintf("GL_EXT_shared.\n");
+ load_texture = (void *) dlsym(dlhand, "glColorTableEXT");
+
+ glEnable( GL_SHARED_TEXTURE_PALETTE_EXT );
+ oldPalette = (char *) d_8to24table; //d_8to24table3dfx;
+ newPalette = thePalette;
+ for (i=0;i<256;i++) {
+ *newPalette++ = *oldPalette++;
+ *newPalette++ = *oldPalette++;
+ *newPalette++ = *oldPalette++;
+ oldPalette++;
+ }
+ load_texture(GL_SHARED_TEXTURE_PALETTE_EXT, GL_RGB, 256, GL_RGB, GL_UNSIGNED_BYTE, (void *) thePalette);
+ is8bit = true;
+ } else {
+ Con_SafePrintf ("not found.\n");
+ }
+
+ dlclose(dlhand);
+ dlhand = NULL;
+}
+
+extern void Check_Gamma (unsigned char *pal);
+void VID_Setup15to8Palette ();
+
+void VID_Init(unsigned char *palette)
+{
+ int i;
+ GLint attribs[32];
+ char gldir[MAX_OSPATH];
+ int width = 640, height = 480;
+
+// set vid parameters
+ attribs[0] = FXMESA_DOUBLEBUFFER;
+ attribs[1] = FXMESA_ALPHA_SIZE;
+ attribs[2] = 1;
+ attribs[3] = FXMESA_DEPTH_SIZE;
+ attribs[4] = 1;
+ attribs[5] = FXMESA_NONE;
+
+ if ((i = COM_CheckParm("-width")) != 0)
+ width = atoi(com_argv[i+1]);
+ if ((i = COM_CheckParm("-height")) != 0)
+ height = atoi(com_argv[i+1]);
+
+ if ((i = COM_CheckParm("-conwidth")) != 0)
+ vid.conwidth = atoi(com_argv[i+1]);
+ else
+ vid.conwidth = 640;
+
+ vid.conwidth &= 0xfff8; // make it a multiple of eight
+
+ if (vid.conwidth < 320)
+ vid.conwidth = 320;
+
+ // pick a conheight that matches with correct aspect
+ vid.conheight = vid.conwidth*3 / 4;
+
+ if ((i = COM_CheckParm("-conheight")) != 0)
+ vid.conheight = atoi(com_argv[i+1]);
+ if (vid.conheight < 200)
+ vid.conheight = 200;
+
+ fc = fxMesaCreateContext(0, findres(&width, &height), GR_REFRESH_75Hz,
+ attribs);
+ if (!fc)
+ Sys_Error("Unable to create 3DFX context.\n");
+
+ scr_width = width;
+ scr_height = height;
+
+ fxMesaMakeCurrent(fc);
+
+ if (vid.conheight > height)
+ vid.conheight = height;
+ if (vid.conwidth > width)
+ vid.conwidth = width;
+ vid.width = vid.conwidth;
+ vid.height = vid.conheight;
+
+ vid.aspect = ((float)vid.height / (float)vid.width) * (320.0 / 240.0);
+
+ InitSig(); // trap evil signals
+
+ GL_Init();
+
+ snprintf(gldir, sizeof(gldir), "%s/glquake", com_gamedir);
+ Sys_mkdir (gldir);
+
+ VID_SetPalette(palette);
+
+ Check_Gamma(palette);
+
+ // Check for 3DFX Extensions and initialize them.
+ VID_Init8bitPalette();
+
+ if (is8bit) // LordHavoc: avoid calculating 15to8 table if it won't be used
+ VID_Setup15to8Palette ();
+
+ Con_SafePrintf ("Video mode %dx%d initialized.\n", width, height);
+
+ vid.recalc_refdef = 1; // force a surface cache flush
+}
+
+void VID_ExtraOptionDraw(unsigned int options_draw_cursor)
+{
+/* Port specific Options menu entrys */
+}
+
+void VID_ExtraOptionCmd(int option_cursor)
+{
+/*
+ switch(option_cursor)
+ {
+ case 12: // Always start with 12
+ break;
+ }
+*/
+}
+void VID_InitCvars ()
+{
+}
+
+void VID_SetCaption (char *text)
+{
+}
+
+void VID_HandlePause (qboolean pause)
+{
+}
projects / xonotic / darkplaces.git / commitdiff