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cnq3/code/unix/sdl_glimp.c
arQon 97db9f2314 import from cnq3 1.47
2016-12-17 20:43:04 -08:00

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#if USE_SDL_VIDEO
/*
* SDL implementation for Quake 3: Arena's GPL source release.
*
* I wrote such a beast originally for Loki's port of Heavy Metal: FAKK2,
* and then wrote it again for the Linux client of Medal of Honor: Allied
* Assault. Third time's a charm, so I'm rewriting this once more for the
* GPL release of Quake 3.
*
* Written by Ryan C. Gordon (icculus@icculus.org). Please refer to
* http://icculus.org/quake3/ for the latest version of this code.
*
* Patches and comments are welcome at the above address.
*
* I cut-and-pasted this from linux_glimp.c, and moved it to SDL line-by-line.
* There is probably some cruft that could be removed here.
*
* You should define USE_SDL=1 and then add this to the makefile.
* USE_SDL will disable the X11 target.
*/
/*
Original copyright on Q3A sources:
===========================================================================
Copyright (C) 1999-2005 Id Software, Inc.
This file is part of Quake III Arena source code.
Quake III Arena source code 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.
Quake III Arena source code 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 Quake III Arena source code; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
===========================================================================
*/
/*
** GLW_IMP.C
**
** This file contains ALL Linux specific stuff having to do with the
** OpenGL refresh. When a port is being made the following functions
** must be implemented by the port:
**
** GLimp_EndFrame
** GLimp_Init
** GLimp_Shutdown
** GLimp_SwitchFullscreen
** GLimp_SetGamma
**
*/
#include <SDL.h>
#ifdef SMP
#include <SDL_thread.h>
#endif
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <dlfcn.h>
#include "../renderer/tr_local.h"
#include "../client/client.h"
#include "linux_local.h" // bk001130
#include "unix_glw.h"
/* Just hack it for now. */
#ifdef MACOS_X
typedef CGLContextObj QGLContext;
#define GLimp_GetCurrentContext() CGLGetCurrentContext()
#define GLimp_SetCurrentContext(ctx) CGLSetCurrentContext(ctx)
#else
typedef void *QGLContext;
#define GLimp_GetCurrentContext() (NULL)
#define GLimp_SetCurrentContext(ctx)
#endif
// OpenGL driver
#define OPENGL_DRIVER_NAME "libGL.so.1"
static QGLContext opengl_context;
typedef enum
{
RSERR_OK,
RSERR_INVALID_FULLSCREEN,
RSERR_INVALID_MODE,
RSERR_UNKNOWN
} rserr_t;
glwstate_t glw_state;
static SDL_Surface *screen = NULL;
static SDL_Joystick *stick = NULL;
static qboolean mouse_avail = qfalse;
static qboolean mouse_active = qfalse;
static qboolean sdlrepeatenabled = qfalse;
static cvar_t *in_mouse;
cvar_t *in_subframe;
cvar_t *in_nograb; // this is strictly for developers
// bk001130 - from cvs1.17 (mkv), but not static
cvar_t *in_joystick = NULL;
cvar_t *in_joystickDebug = NULL;
cvar_t *joy_threshold = NULL;
cvar_t *r_allowSoftwareGL; // don't abort out if the pixelformat claims software
cvar_t *r_fullscreen;
// SDL init wrapper
qboolean GLimp_sdl_init_video(void)
{
if (!SDL_WasInit(SDL_INIT_VIDEO))
{
ri.Printf( PRINT_ALL, "Calling SDL_Init(SDL_INIT_VIDEO)...\n");
if (SDL_Init(SDL_INIT_VIDEO) == -1)
{
ri.Printf( PRINT_ALL, "SDL_Init(SDL_INIT_VIDEO) failed: %s\n", SDL_GetError());
return qfalse;
}
ri.Printf( PRINT_ALL, "SDL_Init(SDL_INIT_VIDEO) passed.\n");
}
return qtrue;
}
static const char *XLateKey(SDL_keysym *keysym, int *key)
{
static char buf[2] = { '\0', '\0' };
*key = 0;
*buf = '\0';
// these happen to match the ASCII chars.
if ((keysym->sym >= ' ') && (keysym->sym <= '~'))
{
*key = (int) keysym->sym;
}
else
switch (keysym->sym)
{
case SDLK_PAGEUP: *key = K_PGUP; break;
case SDLK_KP9: *key = K_KP_PGUP; break;
case SDLK_PAGEDOWN: *key = K_PGDN; break;
case SDLK_KP3: *key = K_KP_PGDN; break;
case SDLK_KP7: *key = K_KP_HOME; break;
case SDLK_HOME: *key = K_HOME; break;
case SDLK_KP1: *key = K_KP_END; break;
case SDLK_END: *key = K_END; break;
case SDLK_KP4: *key = K_KP_LEFTARROW; break;
case SDLK_LEFT: *key = K_LEFTARROW; break;
case SDLK_KP6: *key = K_KP_RIGHTARROW; break;
case SDLK_RIGHT: *key = K_RIGHTARROW; break;
case SDLK_KP2: *key = K_KP_DOWNARROW; break;
case SDLK_DOWN: *key = K_DOWNARROW; break;
case SDLK_KP8: *key = K_KP_UPARROW; break;
case SDLK_UP: *key = K_UPARROW; break;
case SDLK_ESCAPE: *key = K_ESCAPE; break;
case SDLK_KP_ENTER: *key = K_KP_ENTER; break;
case SDLK_RETURN: *key = K_ENTER; break;
case SDLK_TAB: *key = K_TAB; break;
case SDLK_F1: *key = K_F1; break;
case SDLK_F2: *key = K_F2; break;
case SDLK_F3: *key = K_F3; break;
case SDLK_F4: *key = K_F4; break;
case SDLK_F5: *key = K_F5; break;
case SDLK_F6: *key = K_F6; break;
case SDLK_F7: *key = K_F7; break;
case SDLK_F8: *key = K_F8; break;
case SDLK_F9: *key = K_F9; break;
case SDLK_F10: *key = K_F10; break;
case SDLK_F11: *key = K_F11; break;
case SDLK_F12: *key = K_F12; break;
// bk001206 - from Ryan's Fakk2
case SDLK_BACKSPACE: *key = K_BACKSPACE; break; // ctrl-h
case SDLK_KP_PERIOD: *key = K_KP_DEL; break;
case SDLK_DELETE: *key = K_DEL; break;
case SDLK_PAUSE: *key = K_PAUSE; break;
case SDLK_LSHIFT:
case SDLK_RSHIFT: *key = K_SHIFT; break;
case SDLK_LCTRL:
case SDLK_RCTRL: *key = K_CTRL; break;
case SDLK_RMETA:
case SDLK_LMETA:
case SDLK_RALT:
case SDLK_LALT: *key = K_ALT; break;
case SDLK_KP5: *key = K_KP_5; break;
case SDLK_INSERT: *key = K_INS; break;
case SDLK_KP0: *key = K_KP_INS; break;
case SDLK_KP_MULTIPLY: *key = '*'; break;
case SDLK_KP_PLUS: *key = K_KP_PLUS; break;
case SDLK_KP_MINUS: *key = K_KP_MINUS; break;
case SDLK_KP_DIVIDE: *key = K_KP_SLASH; break;
default: break;
}
if( keysym->unicode <= 127 ) // maps to ASCII?
{
char ch = (char) keysym->unicode;
if (ch == '~')
*key = '~'; // console HACK
// The X11 driver converts to lowercase, but apparently we shouldn't.
// There's possibly somewhere else where they covert back. Passing
// uppercase to the engine works fine and fixes all-lower input.
// (https://bugzilla.icculus.org/show_bug.cgi?id=2364) --ryan.
//else if (ch >= 'A' && ch <= 'Z')
// ch = ch - 'A' + 'a';
// tjw: translate K_BACKSPACE to ctrl-h for MACOS_X (others?)
if (ch == K_BACKSPACE)
{
*key = 'h' - 'a' + 1;
buf[0] = *key;
}
else
buf[0] = ch;
}
return buf;
}
static void install_grabs(void)
{
SDL_WM_GrabInput(SDL_GRAB_ON);
SDL_ShowCursor(0);
// This is a bug in the current SDL/macosx...have to toggle it a few
// times to get the cursor to hide. CHECKME
#if defined(MACOS_X)
SDL_ShowCursor(1);
SDL_ShowCursor(0);
#endif
}
static void uninstall_grabs(void)
{
SDL_ShowCursor(1);
SDL_WM_GrabInput(SDL_GRAB_OFF);
}
static void printkey(const SDL_Event* event)
{
#ifdef KBD_DBG
printf("key name: %s", SDL_GetKeyName(event->key.keysym.sym));
if(event->key.keysym.unicode)
{
printf(" unicode: %hx", event->key.keysym.unicode);
if (event->key.keysym.unicode >= '0' && event->key.keysym.unicode <= '~') // printable?
printf(" (%c)", (unsigned char)(event->key.keysym.unicode));
}
puts("");
#endif
}
static void HandleEvents(void)
{
const int t = 0; // always just use the current time.
SDL_Event e;
const char *p = NULL;
int key = 0;
if (screen == NULL)
return; // no SDL context.
if (cls.keyCatchers == 0)
{
if (sdlrepeatenabled)
{
SDL_EnableKeyRepeat(0, 0);
sdlrepeatenabled = qfalse;
}
}
else
{
if (!sdlrepeatenabled)
{
SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
sdlrepeatenabled = qtrue;
}
}
while (SDL_PollEvent(&e))
{
switch (e.type)
{
case SDL_KEYDOWN:
printkey(&e);
p = XLateKey(&e.key.keysym, &key);
if (key)
{
Sys_QueEvent( t, SE_KEY, key, qtrue, 0, NULL );
}
if (p)
{
while (*p)
{
Sys_QueEvent( t, SE_CHAR, *p++, 0, 0, NULL );
}
}
break;
case SDL_KEYUP:
XLateKey(&e.key.keysym, &key);
Sys_QueEvent( t, SE_KEY, key, qfalse, 0, NULL );
break;
case SDL_MOUSEMOTION:
if (mouse_active)
{
Sys_QueEvent( t, SE_MOUSE, e.motion.xrel, e.motion.yrel, 0, NULL );
}
break;
case SDL_MOUSEBUTTONDOWN:
case SDL_MOUSEBUTTONUP:
{
unsigned char b;
switch (e.button.button)
{
case 1: b = K_MOUSE1; break;
case 2: b = K_MOUSE3; break;
case 3: b = K_MOUSE2; break;
case 4: b = K_MWHEELUP; break;
case 5: b = K_MWHEELDOWN; break;
case 6: b = K_MOUSE4; break;
case 7: b = K_MOUSE5; break;
default: b = K_AUX1 + (e.button.button - 8)%16; break;
}
Sys_QueEvent( t, SE_KEY, b, (e.type == SDL_MOUSEBUTTONDOWN?qtrue:qfalse), 0, NULL );
}
break;
case SDL_QUIT:
Sys_Quit();
break;
}
}
}
// NOTE TTimo for the tty console input, we didn't rely on those ..
// it's not very surprising actually cause they are not used otherwise
void KBD_Init(void)
{
}
void KBD_Close(void)
{
}
void IN_ActivateMouse( void )
{
if (!mouse_avail || !screen)
return;
if (!mouse_active)
{
if (!in_nograb->value)
install_grabs();
mouse_active = qtrue;
}
}
void IN_DeactivateMouse( void )
{
if (!mouse_avail || !screen)
return;
if (mouse_active)
{
if (!in_nograb->value)
uninstall_grabs();
mouse_active = qfalse;
}
}
/*****************************************************************************/
/*
** GLimp_SetGamma
**
** This routine should only be called if glConfig.deviceSupportsGamma is TRUE
*/
void GLimp_SetGamma( unsigned char red[256], unsigned char green[256], unsigned char blue[256] )
{
Uint16 table[3][256];
int i, j;
// float g;
if(r_ignorehwgamma->integer)
return;
// taken from win_gamma.c:
for (i = 0; i < 256; i++)
{
table[0][i] = ( ( ( Uint16 ) red[i] ) << 8 ) | red[i];
table[1][i] = ( ( ( Uint16 ) green[i] ) << 8 ) | green[i];
table[2][i] = ( ( ( Uint16 ) blue[i] ) << 8 ) | blue[i];
}
// enforce constantly increasing
for (j = 0; j < 3; j++)
{
for (i = 1; i < 256; i++)
{
if (table[j][i] < table[j][i-1])
table[j][i] = table[j][i-1];
}
}
SDL_SetGammaRamp(table[0], table[1], table[2]);
// g = Cvar_Get("r_gamma", "1.0", 0)->value;
// SDL_SetGamma(g, g, g);
}
/*
** GLimp_Shutdown
**
** This routine does all OS specific shutdown procedures for the OpenGL
** subsystem. Under OpenGL this means NULLing out the current DC and
** HGLRC, deleting the rendering context, and releasing the DC acquired
** for the window. The state structure is also nulled out.
**
*/
void GLimp_Shutdown( void )
{
IN_Shutdown();
screen = NULL;
memset( &glConfig, 0, sizeof( glConfig ) );
memset( &glState, 0, sizeof( glState ) );
QGL_Shutdown();
}
/*
** GLimp_LogComment CHECKME - can this be removed? brut-
*/
void GLimp_LogComment( const char* comment )
{
if ( glw_state.log_fp )
{
fprintf( glw_state.log_fp, "%s", comment );
}
}
/*
** GLW_StartDriverAndSetMode
*/
static qboolean GLW_SetMode( qboolean fullscreen );
static qboolean GLW_StartDriverAndSetMode( qboolean fullscreen )
{
rserr_t err;
if (GLimp_sdl_init_video() == qfalse)
return qfalse;
if (fullscreen && in_nograb->value)
{
ri.Printf( PRINT_ALL, "Fullscreen not allowed with in_nograb 1\n");
ri.Cvar_Set( "r_fullscreen", "0" );
r_fullscreen->modified = qfalse;
fullscreen = qfalse;
}
err = (rserr_t)GLW_SetMode( fullscreen );
switch ( err )
{
case RSERR_INVALID_FULLSCREEN:
ri.Printf( PRINT_ALL, "...WARNING: fullscreen unavailable in this mode\n" );
return qfalse;
case RSERR_INVALID_MODE:
ri.Printf( PRINT_ALL, "...WARNING: could not set the given mode.\n");
return qfalse;
default:
break;
}
return qtrue;
}
/*
** GLW_SetMode
*/
static qboolean GLW_SetMode( qboolean fullscreen )
{
const char* glstring;
int sdlcolorbits = 4;
int colorbits, depthbits, stencilbits;
int tcolorbits, tdepthbits, tstencilbits;
int i = 0;
// SDL surface
SDL_Surface *vidscreen = NULL;
// Desktop settings
const SDL_VideoInfo* sdlVideoInfo = SDL_GetVideoInfo();
glw_state.desktopBPP = sdlVideoInfo->vfmt->BitsPerPixel;
glw_state.desktopWidth = sdlVideoInfo->current_w;
glw_state.desktopHeight = sdlVideoInfo->current_h;
ri.Printf( PRINT_ALL, "Initializing OpenGL display...\n" );
ri.Printf( PRINT_DEVELOPER, "...desktop display detected at the following settings: %dx%d, %d BPP\n", glw_state.desktopWidth, glw_state.desktopHeight, glw_state.desktopBPP );
glInfo.isFullscreen = fullscreen;
if ( !R_GetModeInfo( &glConfig.vidWidth, &glConfig.vidHeight, &glConfig.windowAspect ) )
{
glConfig.vidWidth = glw_state.desktopWidth;
glConfig.vidHeight = glw_state.desktopHeight;
glConfig.windowAspect = (float)glConfig.vidWidth / glConfig.vidHeight;
fullscreen = qfalse;
}
// Setup for SDL
Uint32 flags = SDL_OPENGL;
if (fullscreen)
{
flags |= SDL_FULLSCREEN;
glInfo.isFullscreen = qtrue;
}
else
glInfo.isFullscreen = qfalse;
// Xbits
if (!r_colorbits->value)
colorbits = 24;
else
colorbits = r_colorbits->value;
if (!r_depthbits->value)
depthbits = 24;
else
depthbits = r_depthbits->value;
stencilbits = r_stencilbits->value;
for (i = 0; i < 16; i++)
{
// 0 - default
// 1 - minus colorbits
// 2 - minus depthbits
// 3 - minus stencil
if ((i % 4) == 0 && i)
{
// one pass, reduce
switch (i / 4)
{
case 2 :
if (colorbits == 24)
colorbits = 16;
break;
case 1 :
if (depthbits == 24)
depthbits = 16;
else if (depthbits == 16)
depthbits = 8;
case 3 :
if (stencilbits == 24)
stencilbits = 16;
else if (stencilbits == 16)
stencilbits = 8;
}
}
tcolorbits = colorbits;
tdepthbits = depthbits;
tstencilbits = stencilbits;
if ((i % 4) == 3)
{ // reduce colorbits
if (tcolorbits == 24)
tcolorbits = 16;
}
if ((i % 4) == 2)
{ // reduce depthbits
if (tdepthbits == 24)
tdepthbits = 16;
else if (tdepthbits == 16)
tdepthbits = 8;
}
if ((i % 4) == 1)
{ // reduce stencilbits
if (tstencilbits == 24)
tstencilbits = 16;
else if (tstencilbits == 16)
tstencilbits = 8;
else
tstencilbits = 0;
}
if (tcolorbits == 24)
sdlcolorbits = 8;
// SDL GL Attributes
SDL_GL_SetAttribute( SDL_GL_RED_SIZE, sdlcolorbits );
SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, sdlcolorbits );
SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, sdlcolorbits );
SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, tdepthbits );
SDL_GL_SetAttribute( SDL_GL_STENCIL_SIZE, tstencilbits );
SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
// GL Stereo. This is just here to remind me to add it later. FIXME
if ( r_stereo->integer )
{
ri.Printf( PRINT_ALL, "...GL stereo not yet supported. r_stereo ignored.\n" );
}
// Swap control. We have to set it up here rather than in InitExtension, as SDL requires the attribute
// to be set *before* we call SetVideoMode, otherwise we have to bounce the display and run SetVideoMode twice. SIGH.
#if SDL_VERSION_ATLEAST(1,3,0) // In 1.3.0, the command changes for setting V-Sync. Thanks guys...
SDL_GL_SetSwapInterval(r_swapInterval->integer);
ri.Printf( PRINT_DEVELOPER, "Swap control enabled via: SDL_GL_SetSwapInterval(%d)\n", r_swapInterval->integer);
#elif SDL_VERSION_ATLEAST(1,2,10) // 1.2.10 is the earilest release to support v-sync
SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, r_swapInterval->integer);
ri.Printf( PRINT_DEVELOPER, "Swap control enabled via: SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, %d)\n", r_swapInterval->integer);
#else
ri.Printf( PRINT_DEVELOPER, "No suitable SDL V-Sync/Swap control available. r_swapInterval ignored.\n" );
#endif
SDL_WM_SetCaption(CLIENT_WINDOW_TITLE, NULL);
SDL_ShowCursor(0);
SDL_EnableUNICODE(1);
SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
sdlrepeatenabled = qtrue;
if (!(vidscreen = SDL_SetVideoMode(glConfig.vidWidth, glConfig.vidHeight, colorbits, flags)))
{
ri.Printf( PRINT_DEVELOPER, "SDL_SetVideoMode failed: %s\n", SDL_GetError());
fprintf(stderr, "SDL_SetVideoMode failed: %s\n", SDL_GetError());
continue;
}
opengl_context = GLimp_GetCurrentContext();
ri.Printf( PRINT_ALL, "Using %d/%d/%d Color bits, %d depth, %d stencil display.\n", sdlcolorbits, sdlcolorbits, sdlcolorbits, tdepthbits, tstencilbits);
glConfig.colorBits = tcolorbits;
glConfig.depthBits = tdepthbits;
glConfig.stencilBits = tstencilbits;
break;
}
if (!vidscreen)
{
ri.Printf( PRINT_ALL, "Couldn't get a visual\n" );
return RSERR_INVALID_MODE;
}
screen = vidscreen;
// bk001130 - from cvs1.17 (mkv)
glstring = (char *) qglGetString (GL_RENDERER);
ri.Printf( PRINT_ALL, "GL_RENDERER: %s\n", glstring );
// bk010122 - new software token (Indirect)
if ( !Q_stricmp( glstring, "Mesa X11") || !Q_stricmp( glstring, "Mesa GLX Indirect") )
{
if ( !r_allowSoftwareGL->integer )
{
ri.Printf( PRINT_ALL, "\n\n***********************************************************\n" );
ri.Printf( PRINT_ALL, " You are using software Mesa (no hardware acceleration)! \n" );
ri.Printf( PRINT_ALL, " If this is intentional, add\n" );
ri.Printf( PRINT_ALL, " \"+set r_allowSoftwareGL 1\"\n" );
ri.Printf( PRINT_ALL, " to the command line when starting the game.\n" );
ri.Printf( PRINT_ALL, "***********************************************************\n");
GLimp_Shutdown( );
return RSERR_INVALID_MODE;
} else
{
ri.Printf( PRINT_ALL, "...using software Mesa (r_allowSoftwareGL==1).\n" );
}
}
return RSERR_OK;
}
/*
** GLW_InitExtensions
*/
static void GLW_InitExtensions( void )
{
ri.Printf( PRINT_ALL, "Initializing OpenGL extensions\n" );
#define QGL_EXT(T, fn) q##fn = (T)SDL_GL_GetProcAddress( #fn ); \
if (!q##fn) Com_Error( ERR_FATAL, "QGL_EXT: required extension "#fn" not found" );
QGL_EXT( PFNGLLOCKARRAYSEXTPROC, glLockArraysEXT );
QGL_EXT( PFNGLUNLOCKARRAYSEXTPROC, glUnlockArraysEXT );
QGL_EXT( PFNGLACTIVETEXTUREARBPROC, glActiveTextureARB );
QGL_EXT( PFNGLCLIENTACTIVETEXTUREARBPROC, glClientActiveTextureARB );
#undef QGL_EXT
int maxAnisotropy = 0;
if ( strstr( glConfig.extensions_string, "GL_EXT_texture_filter_anisotropic" ) )
{
if (r_ext_max_anisotropy->integer > 1) {
qglGetIntegerv( GL_MAX_TEXTURE_MAX_ANISOTROPY_EXT, &maxAnisotropy );
if ( maxAnisotropy <= 0 ) {
ri.Printf( PRINT_DEVELOPER, "...GL_EXT_texture_filter_anisotropic not properly supported!\n" );
maxAnisotropy = 0;
}
else
{
ri.Printf( PRINT_DEVELOPER, "...using GL_EXT_texture_filter_anisotropic (max: %i)\n", maxAnisotropy );
}
}
else
{
ri.Printf( PRINT_DEVELOPER, "...ignoring GL_EXT_texture_filter_anisotropic\n" );
}
}
else
{
ri.Printf( PRINT_DEVELOPER, "...GL_EXT_texture_filter_anisotropic not found\n" );
}
Cvar_Set( "r_ext_max_anisotropy", va("%i", maxAnisotropy) );
}
static void GLW_InitGamma( void )
{
// Shouldn't we have some sort of check here? Verify vs win32 build. brut- FIXME
glConfig.deviceSupportsGamma = qtrue;
}
/*
** GLW_LoadOpenGL
**
** GLimp_win.c internal function that that attempts to load and use
** a specific OpenGL DLL.
*/
static qboolean GLW_LoadOpenGL( const char *name )
{
ri.Printf( PRINT_ALL, "...loading %s:\n", name );
if ( QGL_Init( name ) )
{
// create the window and set up the context
if ( GLW_StartDriverAndSetMode( (qboolean)r_fullscreen->integer ) )
{
ri.Printf( PRINT_ALL, "success.\n" );
return qtrue;
}
}
ri.Printf ( PRINT_ALL, "failed.\n" );
QGL_Shutdown();
return qfalse;
}
/*
** GLimp_Init
**
** This routine is responsible for initializing the OS specific portions
** of OpenGL.
*/
void GLimp_Init()
{
InitSig();
IN_Init(); // rcg08312005 moved into glimp.
// load appropriate DLL and initialize subsystem
if (!GLW_LoadOpenGL( OPENGL_DRIVER_NAME ) )
ri.Error( ERR_FATAL, "GLimp_Init()->GLW_LoadOpenGL() - could not load OpenGL/SDL subsystem (using '%s')\n", OPENGL_DRIVER_NAME );
// get our config strings
Q_strncpyz( glConfig.vendor_string, (char *) qglGetString (GL_VENDOR), sizeof( glConfig.vendor_string ) );
Q_strncpyz( glConfig.renderer_string, (char *) qglGetString (GL_RENDERER), sizeof( glConfig.renderer_string ) );
if (*glConfig.renderer_string && glConfig.renderer_string[strlen(glConfig.renderer_string) - 1] == '\n')
glConfig.renderer_string[strlen(glConfig.renderer_string) - 1] = 0;
Q_strncpyz( glConfig.version_string, (char *) qglGetString (GL_VERSION), sizeof( glConfig.version_string ) );
Q_strncpyz( glConfig.extensions_string, (char *) qglGetString (GL_EXTENSIONS), sizeof( glConfig.extensions_string ) );
// initialize extensions
GLW_InitExtensions();
GLW_InitGamma();
if (GLW_InitARB() && QGL_InitARB() && QGL_InitExtensions())
{
return;
}
ri.Error( ERR_FATAL, "GLimp_Init() - could not find an acceptable OpenGL subsystem\n" );
}
/*
** GLimp_EndFrame
**
** Responsible for doing a swapbuffers and possibly for other stuff
** as yet to be determined. Probably better not to make this a GLimp
** function and instead do a call to GLimp_SwapBuffers.
*/
void GLimp_EndFrame (void)
{
// don't flip if drawing to front buffer
if ( Q_stricmp( r_drawBuffer->string, "GL_FRONT" ) != 0 )
{
SDL_GL_SwapBuffers();
}
// SDL_WM_ToggleFullScreen doesn't seem to be working. FIXME
if( r_fullscreen->modified )
{
qboolean fullscreen;
qboolean sdlToggled = qfalse;
SDL_Surface *s = SDL_GetVideoSurface( );
if( s )
{
// Find out the current state
if( s->flags & SDL_FULLSCREEN )
fullscreen = qtrue;
else
fullscreen = qfalse;
// Is the state we want different from the current state?
if( !!r_fullscreen->integer != fullscreen )
sdlToggled = SDL_WM_ToggleFullScreen( s );
else
sdlToggled = qtrue;
}
// SDL_WM_ToggleFullScreen didn't work, so do it the slow way
if( !sdlToggled )
{
Cbuf_AddText( "vid_restart" );
r_fullscreen->modified = qfalse;
}
}
}
#ifdef SMP
/*
===========================================================
SMP acceleration
===========================================================
*/
/*
* I have no idea if this will even work...most platforms don't offer
* thread-safe OpenGL libraries, and it looks like the original Linux
* code counted on each thread claiming the GL context with glXMakeCurrent(),
* which you can't currently do in SDL. We'll just have to hope for the best.
*/
static SDL_mutex *smpMutex = NULL;
static SDL_cond *renderCommandsEvent = NULL;
static SDL_cond *renderCompletedEvent = NULL;
static void (*glimpRenderThread)( void ) = NULL;
static SDL_Thread *renderThread = NULL;
static void GLimp_ShutdownRenderThread(void)
{
if (smpMutex != NULL)
{
SDL_DestroyMutex(smpMutex);
smpMutex = NULL;
}
if (renderCommandsEvent != NULL)
{
SDL_DestroyCond(renderCommandsEvent);
renderCommandsEvent = NULL;
}
if (renderCompletedEvent != NULL)
{
SDL_DestroyCond(renderCompletedEvent);
renderCompletedEvent = NULL;
}
glimpRenderThread = NULL;
}
static int GLimp_RenderThreadWrapper( void *arg )
{
Com_Printf( "Render thread starting\n" );
glimpRenderThread();
GLimp_SetCurrentContext(NULL);
Com_Printf( "Render thread terminating\n" );
return 0;
}
qboolean GLimp_SpawnRenderThread( void (*function)( void ) )
{
static qboolean warned = qfalse;
if (!warned)
{
Com_Printf("WARNING: You enable r_smp at your own risk!\n");
warned = qtrue;
}
#ifndef MACOS_X
return qfalse; /* better safe than sorry for now. */
#endif
if (renderThread != NULL) /* hopefully just a zombie at this point... */
{
Com_Printf("Already a render thread? Trying to clean it up...\n");
SDL_WaitThread(renderThread, NULL);
renderThread = NULL;
GLimp_ShutdownRenderThread();
}
smpMutex = SDL_CreateMutex();
if (smpMutex == NULL)
{
Com_Printf( "smpMutex creation failed: %s\n", SDL_GetError() );
GLimp_ShutdownRenderThread();
return qfalse;
}
renderCommandsEvent = SDL_CreateCond();
if (renderCommandsEvent == NULL)
{
Com_Printf( "renderCommandsEvent creation failed: %s\n", SDL_GetError() );
GLimp_ShutdownRenderThread();
return qfalse;
}
renderCompletedEvent = SDL_CreateCond();
if (renderCompletedEvent == NULL)
{
Com_Printf( "renderCompletedEvent creation failed: %s\n", SDL_GetError() );
GLimp_ShutdownRenderThread();
return qfalse;
}
glimpRenderThread = function;
renderThread = SDL_CreateThread(GLimp_RenderThreadWrapper, NULL);
if ( renderThread == NULL ) {
ri.Printf( PRINT_ALL, "SDL_CreateThread() returned %s", SDL_GetError() );
GLimp_ShutdownRenderThread();
return qfalse;
} else {
// !!! FIXME: No detach API available in SDL!
//ret = pthread_detach( renderThread );
//if ( ret ) {
//ri.Printf( PRINT_ALL, "pthread_detach returned %d: %s", ret, strerror( ret ) );
//}
}
return qtrue;
}
static volatile void *smpData = NULL;
static volatile qboolean smpDataReady;
void *GLimp_RendererSleep( void )
{
void *data = NULL;
GLimp_SetCurrentContext(NULL);
SDL_LockMutex(smpMutex);
{
smpData = NULL;
smpDataReady = qfalse;
// after this, the front end can exit GLimp_FrontEndSleep
SDL_CondSignal(renderCompletedEvent);
while ( !smpDataReady ) {
SDL_CondWait(renderCommandsEvent, smpMutex);
}
data = (void *)smpData;
}
SDL_UnlockMutex(smpMutex);
GLimp_SetCurrentContext(opengl_context);
return data;
}
void GLimp_FrontEndSleep( void )
{
SDL_LockMutex(smpMutex);
{
while ( smpData ) {
SDL_CondWait(renderCompletedEvent, smpMutex);
}
}
SDL_UnlockMutex(smpMutex);
GLimp_SetCurrentContext(opengl_context);
}
void GLimp_WakeRenderer( void *data )
{
GLimp_SetCurrentContext(NULL);
SDL_LockMutex(smpMutex);
{
assert( smpData == NULL );
smpData = data;
smpDataReady = qtrue;
// after this, the renderer can continue through GLimp_RendererSleep
SDL_CondSignal(renderCommandsEvent);
}
SDL_UnlockMutex(smpMutex);
}
#else
void GLimp_RenderThreadWrapper( void *stub ) {}
qboolean GLimp_SpawnRenderThread( void (*function)( void ) ) {
ri.Printf( PRINT_WARNING, "ERROR: SMP support was disabled at compile time\n");
return qfalse;
}
void *GLimp_RendererSleep( void ) {
return NULL;
}
void GLimp_FrontEndSleep( void ) {}
void GLimp_WakeRenderer( void *data ) {}
#endif // ifdef SMP
/*****************************************************************************/
/* MOUSE */
/*****************************************************************************/
void IN_Init(void) {
Com_Printf ("\n------- Input Initialization -------\n");
// mouse variables
in_mouse = Cvar_Get ("in_mouse", "1", CVAR_ARCHIVE);
// turn on-off sub-frame timing of X events
in_subframe = Cvar_Get ("in_subframe", "1", CVAR_ARCHIVE);
// developer feature, allows to break without loosing mouse pointer
in_nograb = Cvar_Get ("in_nograb", "0", 0);
// bk001130 - from cvs.17 (mkv), joystick variables
in_joystick = Cvar_Get ("in_joystick", "0", CVAR_ARCHIVE|CVAR_LATCH);
// bk001130 - changed this to match win32
in_joystickDebug = Cvar_Get ("in_debugjoystick", "0", CVAR_TEMP);
joy_threshold = Cvar_Get ("joy_threshold", "0.15", CVAR_ARCHIVE); // FIXME: in_joythreshold
#ifdef MACOS_X
Cvar_Set( "cl_platformSensitivity", "1.0" );
#else
Cvar_Set( "cl_platformSensitivity", "2.0" );
#endif
if (in_mouse->value)
mouse_avail = qtrue;
else
mouse_avail = qfalse;
IN_StartupJoystick( ); // bk001130 - from cvs1.17 (mkv)
Com_Printf ("------------------------------------\n");
}
void IN_Shutdown(void)
{
IN_DeactivateMouse();
mouse_avail = qfalse;
if (stick)
{
SDL_JoystickClose(stick);
stick = NULL;
}
SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
}
void IN_Frame (void)
{
// bk001130 - from cvs 1.17 (mkv)
IN_JoyMove(); // FIXME: disable if on desktop?
if ( cls.keyCatchers & KEYCATCH_CONSOLE )
{
// Let go of the mouse if we're NOT fullscreen'd AND the console is down (active)
if (!Cvar_VariableValue("r_fullscreen"))
{
IN_DeactivateMouse ();
return;
}
}
IN_ActivateMouse();
}
void IN_Activate(void)
{
}
void Sys_SendKeyEvents (void)
{
// XEvent event; // bk001204 - unused
if (!screen)
return;
HandleEvents();
}
/* We translate axes movement into keypresses. */
static int joy_keys[16] = {
K_LEFTARROW, K_RIGHTARROW,
K_UPARROW, K_DOWNARROW,
K_JOY16, K_JOY17,
K_JOY18, K_JOY19,
K_JOY20, K_JOY21,
K_JOY22, K_JOY23,
K_JOY24, K_JOY25,
K_JOY26, K_JOY27
};
// translate hat events into keypresses
// the 4 highest buttons are used for the first hat ...
static int hat_keys[16] = {
K_JOY29, K_JOY30,
K_JOY31, K_JOY32,
K_JOY25, K_JOY26,
K_JOY27, K_JOY28,
K_JOY21, K_JOY22,
K_JOY23, K_JOY24,
K_JOY17, K_JOY18,
K_JOY19, K_JOY20
};
// bk001130 - from linux_glimp.c
extern cvar_t * in_joystick;
extern cvar_t * in_joystickDebug;
extern cvar_t * joy_threshold;
cvar_t *in_joystickNo;
#define ARRAYLEN(x) (sizeof (x) / sizeof (x[0]))
struct
{
qboolean buttons[16]; // !!! FIXME: these might be too many.
unsigned int oldaxes;
unsigned int oldhats;
} stick_state;
/**********************************************/
/* Joystick routines. */
/**********************************************/
// bk001130 - from cvs1.17 (mkv), removed from linux_glimp.c
void IN_StartupJoystick( void )
{
int i = 0;
int total = 0;
if (stick != NULL)
SDL_JoystickClose(stick);
stick = NULL;
memset(&stick_state, '\0', sizeof (stick_state));
if( !in_joystick->integer )
{
Com_Printf( "Joystick is not active.\n" );
return;
}
if (!SDL_WasInit(SDL_INIT_JOYSTICK))
{
Com_Printf("Calling SDL_Init(SDL_INIT_JOYSTICK)...\n");
if (SDL_Init(SDL_INIT_JOYSTICK) == -1)
{
Com_Printf("SDL_Init(SDL_INIT_JOYSTICK) failed: %s\n", SDL_GetError());
return;
}
Com_Printf("SDL_Init(SDL_INIT_JOYSTICK) passed.\n");
}
total = SDL_NumJoysticks();
Com_Printf("I see %d possible joysticks\n", total);
for (i = 0; i < total; i++)
Com_Printf("[%d] %s\n", i, SDL_JoystickName(i));
in_joystickNo = Cvar_Get( "in_joystickNo", "0", CVAR_ARCHIVE );
if( in_joystickNo->integer < 0 || in_joystickNo->integer >= total )
Cvar_Set( "in_joystickNo", "0" );
stick = SDL_JoystickOpen( in_joystickNo->integer );
if (stick == NULL)
{
Com_Printf( "No joystick opened.\n" );
return;
}
Com_Printf( "Joystick %d opened\n", in_joystickNo->integer );
Com_Printf( "Name: %s\n", SDL_JoystickName(in_joystickNo->integer) );
Com_Printf( "Axes: %d\n", SDL_JoystickNumAxes(stick) );
Com_Printf( "Hats: %d\n", SDL_JoystickNumHats(stick) );
Com_Printf( "Buttons: %d\n", SDL_JoystickNumButtons(stick) );
Com_Printf( "Balls: %d\n", SDL_JoystickNumBalls(stick) );
SDL_JoystickEventState(SDL_QUERY);
/* Our work here is done. */
return;
}
void IN_JoyMove( void )
{
qboolean joy_pressed[ARRAYLEN(joy_keys)];
unsigned int axes = 0;
unsigned int hats = 0;
int total = 0;
int i = 0;
if (!stick)
return;
SDL_JoystickUpdate();
memset(joy_pressed, '\0', sizeof (joy_pressed));
// update the ball state.
total = SDL_JoystickNumBalls(stick);
if (total > 0)
{
int balldx = 0;
int balldy = 0;
for (i = 0; i < total; i++)
{
int dx = 0;
int dy = 0;
SDL_JoystickGetBall(stick, i, &dx, &dy);
balldx += dx;
balldy += dy;
}
if (balldx || balldy)
{
// !!! FIXME: is this good for stick balls, or just mice?
// Scale like the mouse input...
if (abs(balldx) > 1)
balldx *= 2;
if (abs(balldy) > 1)
balldy *= 2;
Sys_QueEvent( 0, SE_MOUSE, balldx, balldy, 0, NULL );
}
}
// now query the stick buttons...
total = SDL_JoystickNumButtons(stick);
if (total > 0)
{
if (total > ARRAYLEN(stick_state.buttons))
total = ARRAYLEN(stick_state.buttons);
for (i = 0; i < total; i++)
{
qboolean pressed = (SDL_JoystickGetButton(stick, i) != 0);
if (pressed != stick_state.buttons[i])
{
Sys_QueEvent( 0, SE_KEY, K_JOY1 + i, pressed, 0, NULL );
stick_state.buttons[i] = pressed;
}
}
}
// look at the hats...
total = SDL_JoystickNumHats(stick);
if (total > 0)
{
if (total > 4) total = 4;
for (i = 0; i < total; i++)
{
((Uint8 *)&hats)[i] = SDL_JoystickGetHat(stick, i);
}
}
// update hat state
if (hats != stick_state.oldhats)
{
for( i = 0; i < 4; i++ )
{
if( ((Uint8 *)&hats)[i] != ((Uint8 *)&stick_state.oldhats)[i] )
{
// release event
switch( ((Uint8 *)&stick_state.oldhats)[i] )
{
case SDL_HAT_UP:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 0], qfalse, 0, NULL );
break;
case SDL_HAT_RIGHT:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 1], qfalse, 0, NULL );
break;
case SDL_HAT_DOWN:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 2], qfalse, 0, NULL );
break;
case SDL_HAT_LEFT:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 3], qfalse, 0, NULL );
break;
case SDL_HAT_RIGHTUP:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 0], qfalse, 0, NULL );
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 1], qfalse, 0, NULL );
break;
case SDL_HAT_RIGHTDOWN:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 2], qfalse, 0, NULL );
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 1], qfalse, 0, NULL );
break;
case SDL_HAT_LEFTUP:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 0], qfalse, 0, NULL );
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 3], qfalse, 0, NULL );
break;
case SDL_HAT_LEFTDOWN:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 2], qfalse, 0, NULL );
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 3], qfalse, 0, NULL );
break;
default:
break;
}
// press event
switch( ((Uint8 *)&hats)[i] )
{
case SDL_HAT_UP:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 0], qtrue, 0, NULL );
break;
case SDL_HAT_RIGHT:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 1], qtrue, 0, NULL );
break;
case SDL_HAT_DOWN:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 2], qtrue, 0, NULL );
break;
case SDL_HAT_LEFT:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 3], qtrue, 0, NULL );
break;
case SDL_HAT_RIGHTUP:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 0], qtrue, 0, NULL );
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 1], qtrue, 0, NULL );
break;
case SDL_HAT_RIGHTDOWN:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 2], qtrue, 0, NULL );
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 1], qtrue, 0, NULL );
break;
case SDL_HAT_LEFTUP:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 0], qtrue, 0, NULL );
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 3], qtrue, 0, NULL );
break;
case SDL_HAT_LEFTDOWN:
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 2], qtrue, 0, NULL );
Sys_QueEvent( 0, SE_KEY, hat_keys[4*i + 3], qtrue, 0, NULL );
break;
default:
break;
}
}
}
}
// save hat state
stick_state.oldhats = hats;
// finally, look at the axes...
total = SDL_JoystickNumAxes(stick);
if (total > 0)
{
if (total > 16) total = 16;
for (i = 0; i < total; i++)
{
Sint16 axis = SDL_JoystickGetAxis(stick, i);
float f = ( (float) axis ) / 32767.0f;
if( f < -joy_threshold->value )
{
axes |= ( 1 << ( i * 2 ) );
}
else if( f > joy_threshold->value )
{
axes |= ( 1 << ( ( i * 2 ) + 1 ) );
}
}
}
/* Time to update axes state based on old vs. new. */
if (axes != stick_state.oldaxes)
{
for( i = 0; i < 16; i++ )
{
if( ( axes & ( 1 << i ) ) && !( stick_state.oldaxes & ( 1 << i ) ) )
{
Sys_QueEvent( 0, SE_KEY, joy_keys[i], qtrue, 0, NULL );
}
if( !( axes & ( 1 << i ) ) && ( stick_state.oldaxes & ( 1 << i ) ) )
{
Sys_QueEvent( 0, SE_KEY, joy_keys[i], qfalse, 0, NULL );
}
}
}
/* Save for future generations. */
stick_state.oldaxes = axes;
}
#endif // USE_SDL_VIDEO
// end sdl_glimp.c ...
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