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hlsdk-portable
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Provide safe wrappers around sdl function pointers. Use dylib extension on macOS

asheep
Roman Chistokhodov 7 years ago
parent
1759e8c956
commit
de8ce63282
1 changed files with 108 additions and 29 deletions
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  1. 137
      cl_dll/input_goldsource.cpp

137
cl_dll/input_goldsource.cpp
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@ -40,6 +40,63 @@ Sint16 (*pfnSDL_GameControllerGetAxis)(SDL_GameController*, SDL_GameControllerAx
Uint8 (*pfnSDL_GameControllerGetButton)(SDL_GameController*, SDL_GameControllerButton); Uint8 (*pfnSDL_GameControllerGetButton)(SDL_GameController*, SDL_GameControllerButton);
void (*pfnSDL_JoystickUpdate)(void); void (*pfnSDL_JoystickUpdate)(void);
const char* (*pfnSDL_GameControllerName)(SDL_GameController*); const char* (*pfnSDL_GameControllerName)(SDL_GameController*);
int safe_pfnSDL_SetRelativeMouseMode(SDL_bool mode)
{
if (pfnSDL_SetRelativeMouseMode)
return pfnSDL_SetRelativeMouseMode(mode);
return -1;
}
Uint32 safe_pfnSDL_GetRelativeMouseState(int* x, int* y)
{
if (pfnSDL_GetRelativeMouseState)
return pfnSDL_GetRelativeMouseState(x, y);
return 0;
}
int safe_pfnSDL_NumJoysticks()
{
if (pfnSDL_NumJoysticks)
return pfnSDL_NumJoysticks();
return -1;
}
SDL_bool safe_pfnSDL_IsGameController(int joystick_index)
{
if (pfnSDL_IsGameController)
return pfnSDL_IsGameController(joystick_index);
return SDL_FALSE;
}
SDL_GameController* safe_pfnSDL_GameControllerOpen(int joystick_index)
{
if (pfnSDL_GameControllerOpen)
return pfnSDL_GameControllerOpen(joystick_index);
return NULL;
}
Sint16 safe_pfnSDL_GameControllerGetAxis(SDL_GameController* gamecontroller, SDL_GameControllerAxis axis)
{
if (pfnSDL_GameControllerGetAxis)
return pfnSDL_GameControllerGetAxis(gamecontroller, axis);
return 0;
}
Uint8 safe_pfnSDL_GameControllerGetButton(SDL_GameController* gamecontroller, SDL_GameControllerButton button)
{
if (pfnSDL_GameControllerGetButton)
return pfnSDL_GameControllerGetButton(gamecontroller, button);
return 0;
}
void safe_pfnSDL_JoystickUpdate()
{
if (pfnSDL_JoystickUpdate)
pfnSDL_JoystickUpdate();
}
const char* safe_pfnSDL_GameControllerName(SDL_GameController* gamecontroller)
{
if (pfnSDL_GameControllerName)
return pfnSDL_GameControllerName(gamecontroller);
return NULL;
}
static void** const sdlFunctionPointers[] = {(void**)&pfnSDL_SetRelativeMouseMode, (void**)&pfnSDL_GetRelativeMouseState, (void**)&pfnSDL_NumJoysticks,
(void**)&pfnSDL_IsGameController, (void**)&pfnSDL_GameControllerOpen, (void**)&pfnSDL_GameControllerGetAxis,
(void**)&pfnSDL_GameControllerGetButton, (void**)&pfnSDL_JoystickUpdate, (void**)&pfnSDL_GameControllerName};
#endif #endif
#ifdef _WIN32 #ifdef _WIN32
@ -299,12 +356,12 @@ void IN_SetMouseMode(bool enable)
if(m_bRawInput) if(m_bRawInput)
{ {
#ifdef USE_SDL2 #ifdef USE_SDL2
pfnSDL_SetRelativeMouseMode(SDL_TRUE); safe_pfnSDL_SetRelativeMouseMode(SDL_TRUE);
#endif #endif
isMouseRelative = true; isMouseRelative = true;
} }
#else #else
pfnSDL_SetRelativeMouseMode(SDL_TRUE); safe_pfnSDL_SetRelativeMouseMode(SDL_TRUE);
#endif #endif
currentMouseMode = true; currentMouseMode = true;
@ -315,7 +372,7 @@ void IN_SetMouseMode(bool enable)
if(isMouseRelative) if(isMouseRelative)
{ {
#ifdef USE_SDL2 #ifdef USE_SDL2
pfnSDL_SetRelativeMouseMode(SDL_FALSE); safe_pfnSDL_SetRelativeMouseMode(SDL_FALSE);
#endif #endif
isMouseRelative = false; isMouseRelative = false;
} }
@ -323,7 +380,7 @@ void IN_SetMouseMode(bool enable)
if (restore_spi) if (restore_spi)
SystemParametersInfo (SPI_SETMOUSE, 0, originalmouseparms, 0); SystemParametersInfo (SPI_SETMOUSE, 0, originalmouseparms, 0);
#else #else
pfnSDL_SetRelativeMouseMode(SDL_FALSE); safe_pfnSDL_SetRelativeMouseMode(SDL_FALSE);
#endif #endif
currentMouseMode = false; currentMouseMode = false;
@ -476,6 +533,9 @@ void GoldSourceInput::IN_Shutdown (void)
#endif #endif
#ifdef USE_SDL2 #ifdef USE_SDL2
for (int j=0; j<sizeof(sdlFunctionPointers)/sizeof(sdlFunctionPointers[0]); ++j) {
*(sdlFunctionPointers[j]) = NULL;
}
dlclose(sdl2Lib); dlclose(sdl2Lib);
sdl2Lib = NULL; sdl2Lib = NULL;
#endif #endif
@ -638,7 +698,7 @@ void GoldSourceInput::IN_GetMouseDelta( int *pOutX, int *pOutY)
#endif #endif
{ {
#ifdef USE_SDL2 #ifdef USE_SDL2
pfnSDL_GetRelativeMouseState( &deltaX, &deltaY ); safe_pfnSDL_GetRelativeMouseState( &deltaX, &deltaY );
current_pos.x = deltaX; current_pos.x = deltaX;
current_pos.y = deltaY; current_pos.y = deltaY;
#else #else
@ -694,14 +754,14 @@ void GoldSourceInput::IN_GetMouseDelta( int *pOutX, int *pOutY)
if(m_bRawInput && !isMouseRelative) if(m_bRawInput && !isMouseRelative)
{ {
#ifdef USE_SDL2 #ifdef USE_SDL2
pfnSDL_SetRelativeMouseMode(SDL_TRUE); safe_pfnSDL_SetRelativeMouseMode(SDL_TRUE);
#endif #endif
isMouseRelative = true; isMouseRelative = true;
} }
else if(!m_bRawInput && isMouseRelative) else if(!m_bRawInput && isMouseRelative)
{ {
#ifdef USE_SDL2 #ifdef USE_SDL2
pfnSDL_SetRelativeMouseMode(SDL_FALSE); safe_pfnSDL_SetRelativeMouseMode(SDL_FALSE);
#endif #endif
isMouseRelative = false; isMouseRelative = false;
} }
@ -830,7 +890,7 @@ void GoldSourceInput::IN_Accumulate (void)
{ {
#ifdef USE_SDL2 #ifdef USE_SDL2
int deltaX, deltaY; int deltaX, deltaY;
pfnSDL_GetRelativeMouseState( &deltaX, &deltaY ); safe_pfnSDL_GetRelativeMouseState( &deltaX, &deltaY );
mx_accum += deltaX; mx_accum += deltaX;
my_accum += deltaY; my_accum += deltaY;
#else #else
@ -884,14 +944,14 @@ void IN_StartupJoystick (void)
// assume no joystick // assume no joystick
joy_avail = 0; joy_avail = 0;
#ifdef USE_SDL2 #ifdef USE_SDL2
int nJoysticks = pfnSDL_NumJoysticks(); int nJoysticks = safe_pfnSDL_NumJoysticks();
if ( nJoysticks > 0 ) if ( nJoysticks > 0 )
{ {
for ( int i = 0; i < nJoysticks; i++ ) for ( int i = 0; i < nJoysticks; i++ )
{ {
if ( pfnSDL_IsGameController( i ) ) if ( safe_pfnSDL_IsGameController( i ) )
{ {
s_pJoystick = pfnSDL_GameControllerOpen( i ); s_pJoystick = safe_pfnSDL_GameControllerOpen( i );
if ( s_pJoystick ) if ( s_pJoystick )
{ {
//save the joystick's number of buttons and POV status //save the joystick's number of buttons and POV status
@ -903,7 +963,7 @@ void IN_StartupJoystick (void)
// mark the joystick as available and advanced initialization not completed // mark the joystick as available and advanced initialization not completed
// this is needed as cvars are not available during initialization // this is needed as cvars are not available during initialization
gEngfuncs.Con_Printf ("joystick found\n\n", pfnSDL_GameControllerName(s_pJoystick)); gEngfuncs.Con_Printf ("joystick found\n\n", safe_pfnSDL_GameControllerName(s_pJoystick));
joy_avail = 1; joy_avail = 1;
joy_advancedinit = 0; joy_advancedinit = 0;
break; break;
@ -927,13 +987,13 @@ int RawValuePointer (int axis)
{ {
default: default:
case JOY_AXIS_X: case JOY_AXIS_X:
return pfnSDL_GameControllerGetAxis( s_pJoystick, SDL_CONTROLLER_AXIS_LEFTX ); return safe_pfnSDL_GameControllerGetAxis( s_pJoystick, SDL_CONTROLLER_AXIS_LEFTX );
case JOY_AXIS_Y: case JOY_AXIS_Y:
return pfnSDL_GameControllerGetAxis( s_pJoystick, SDL_CONTROLLER_AXIS_LEFTY ); return safe_pfnSDL_GameControllerGetAxis( s_pJoystick, SDL_CONTROLLER_AXIS_LEFTY );
case JOY_AXIS_Z: case JOY_AXIS_Z:
return pfnSDL_GameControllerGetAxis( s_pJoystick, SDL_CONTROLLER_AXIS_RIGHTX ); return safe_pfnSDL_GameControllerGetAxis( s_pJoystick, SDL_CONTROLLER_AXIS_RIGHTX );
case JOY_AXIS_R: case JOY_AXIS_R:
return pfnSDL_GameControllerGetAxis( s_pJoystick, SDL_CONTROLLER_AXIS_RIGHTY ); return safe_pfnSDL_GameControllerGetAxis( s_pJoystick, SDL_CONTROLLER_AXIS_RIGHTY );
} }
#else #else
@ -1026,7 +1086,7 @@ void GoldSourceInput::IN_Commands (void)
#ifdef USE_SDL2 #ifdef USE_SDL2
for ( i = 0; i < SDL_CONTROLLER_BUTTON_MAX; i++ ) for ( i = 0; i < SDL_CONTROLLER_BUTTON_MAX; i++ )
{ {
if ( pfnSDL_GameControllerGetButton( s_pJoystick, (SDL_GameControllerButton)i ) ) if ( safe_pfnSDL_GameControllerGetButton( s_pJoystick, (SDL_GameControllerButton)i ) )
{ {
buttonstate |= 1<<i; buttonstate |= 1<<i;
} }
@ -1086,7 +1146,7 @@ IN_ReadJoystick
int IN_ReadJoystick (void) int IN_ReadJoystick (void)
{ {
#ifdef USE_SDL2 #ifdef USE_SDL2
pfnSDL_JoystickUpdate(); safe_pfnSDL_JoystickUpdate();
#endif #endif
return 1; return 1;
} }
@ -1360,21 +1420,40 @@ void GoldSourceInput::IN_Init (void)
#endif #endif
#ifdef USE_SDL2 #ifdef USE_SDL2
sdl2Lib = dlopen("libSDL2.so", RTLD_NOW|RTLD_LOCAL); #ifdef __APPLE__
if (!sdl2Lib) #define SDL2_LIBNAME "libSDL2.dylib"
sdl2Lib = dlopen("libSDL2-2.0.so.0", RTLD_NOW|RTLD_LOCAL); #define SDL2_FULL_LIBNAME "libsdl2-2.0.0.dylib"
#else
#define SDL2_LIBNAME "libSDL2.so"
#define SDL2_FULL_LIBNAME "libSDL2-2.0.so.0"
#endif
sdl2Lib = dlopen(SDL2_LIBNAME, RTLD_NOW|RTLD_LOCAL);
if (!sdl2Lib) {
// libSDL2.so in goldsource is not really a symlink, but a regular file with symlink-like contents
FILE* libSDLfile = fopen(SDL2_LIBNAME, "r");
char buf[64];
if (libSDLfile) {
char* str = fgets(buf, sizeof(buf), libSDLfile);
if (str && *str) {
if (str[strlen(str)-1] == '\n') {
str[strlen(str)-1] = '\0';
}
sdl2Lib = dlopen(str, RTLD_NOW|RTLD_LOCAL);
}
fclose(libSDLfile);
}
}
if (!sdl2Lib) // try hardcoded name
sdl2Lib = dlopen(SDL2_FULL_LIBNAME, RTLD_NOW|RTLD_LOCAL);
if (sdl2Lib) { if (sdl2Lib) {
void** sdlFunctions[] = {(void**)&pfnSDL_SetRelativeMouseMode, (void**)&pfnSDL_GetRelativeMouseState, (void**)&pfnSDL_NumJoysticks, const char* const sdlFuncNames[sizeof(sdlFunctionPointers)/sizeof(sdlFunctionPointers[0])] =
(void**)&pfnSDL_IsGameController, (void**)&pfnSDL_GameControllerOpen, (void**)&pfnSDL_GameControllerGetAxis, {"SDL_SetRelativeMouseMode", "SDL_GetRelativeMouseState", "SDL_NumJoysticks",
(void**)&pfnSDL_GameControllerGetButton, (void**)&pfnSDL_JoystickUpdate, (void**)&pfnSDL_GameControllerName};
const char* const sdlFuncNames[] = {"SDL_SetRelativeMouseMode", "SDL_GetRelativeMouseState", "SDL_NumJoysticks",
"SDL_IsGameController", "SDL_GameControllerOpen", "SDL_GameControllerGetAxis", "SDL_IsGameController", "SDL_GameControllerOpen", "SDL_GameControllerGetAxis",
"SDL_GameControllerGetButton", "SDL_JoystickUpdate", "SDL_GameControllerName"}; "SDL_GameControllerGetButton", "SDL_JoystickUpdate", "SDL_GameControllerName"};
for (int j=0; j<sizeof(sdlFunctions)/sizeof(sdlFunctions[0]); ++j) { for (int j=0; j<sizeof(sdlFunctionPointers)/sizeof(sdlFunctionPointers[0]); ++j) {
*(sdlFunctions[j]) = dlsym(sdl2Lib, sdlFuncNames[j]); *(sdlFunctionPointers[j]) = dlsym(sdl2Lib, sdlFuncNames[j]);
if (*sdlFunctions[j] == NULL) { if (*sdlFunctionPointers[j] == NULL) {
gEngfuncs.Con_Printf("Could not load SDL2 function %s: %s\n", sdlFuncNames[j], dlerror()); gEngfuncs.Con_Printf("Could not load SDL2 function %s: %s\n", sdlFuncNames[j], dlerror());
break;
} }
} }
} else { } else {

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