int setcolorscheme(SDL_Window *window, int nc, int scheme)
{
int i;
Uint16 red[256];
Uint16 green[256];
Uint16 blue[256];
if (scheme < 0 || scheme > NSCHEMES - 1 || nc > 256 || !window)
_throw("Invalid argument");
for (i = 0; i < nc; i++)
{
red[i] = 0;
green[i] = 0;
blue[i] = 0;
if (scheme == GREY || scheme == RED || scheme == YELLOW || scheme == MAGENTA)
red[i] = (i * (256 / nc)) << 8;
if (scheme == GREY || scheme == GREEN || scheme == YELLOW || scheme == CYAN)
green[i] = (i * (256 / nc)) << 8;
if (scheme == GREY || scheme == BLUE || scheme == MAGENTA || scheme == CYAN)
blue[i] = (i * (256 / nc)) << 8;
}
SDL_SetWindowGammaRamp(window, red, green, blue);
return 0;
bailout:
return -1;
}
void VideoWrapper::setGammaContrast(float gamma, float contrast)
{
if (gamma == mGamma && contrast == mContrast)
return;
mGamma = gamma;
mContrast = contrast;
mHasSetGammaContrast = true;
Uint16 red[256], green[256], blue[256];
for (int i = 0; i < 256; i++)
{
float k = i/256.0f;
k = (k - 0.5f) * contrast + 0.5f;
k = pow(k, 1.f/gamma);
k *= 256;
float value = k*256;
if (value > 65535) value = 65535;
else if (value < 0) value = 0;
red[i] = green[i] = blue[i] = static_cast<Uint16>(value);
}
if (SDL_SetWindowGammaRamp(mWindow, red, green, blue) < 0)
std::cout << "Couldn't set gamma: " << SDL_GetError() << std::endl;
}
void gr_opengl_shutdown()
{
graphics::paths::PathRenderer::shutdown();
opengl_tcache_shutdown();
opengl_tnl_shutdown();
opengl_scene_texture_shutdown();
opengl_post_process_shutdown();
opengl_shader_shutdown();
GL_initted = false;
glDeleteVertexArrays(1, &GL_vao);
GL_vao = 0;
if (GL_original_gamma_ramp != NULL && os::getSDLMainWindow() != nullptr) {
SDL_SetWindowGammaRamp( os::getSDLMainWindow(), GL_original_gamma_ramp, (GL_original_gamma_ramp+256), (GL_original_gamma_ramp+512) );
}
if (GL_original_gamma_ramp != NULL) {
vm_free(GL_original_gamma_ramp);
GL_original_gamma_ramp = NULL;
}
graphic_operations->makeOpenGLContextCurrent(nullptr, nullptr);
GL_context = nullptr;
}
void gr_opengl_set_gamma(float gamma)
{
ushort *gamma_ramp = NULL;
Gr_gamma = gamma;
Gr_gamma_int = int (Gr_gamma*10);
// new way - but not while running FRED
if (!Fred_running && !Cmdline_no_set_gamma && os::getSDLMainWindow() != nullptr) {
gamma_ramp = (ushort*) vm_malloc( 3 * 256 * sizeof(ushort), memory::quiet_alloc);
if (gamma_ramp == NULL) {
Int3();
return;
}
memset( gamma_ramp, 0, 3 * 256 * sizeof(ushort) );
// Create the Gamma lookup table
opengl_make_gamma_ramp(gamma, gamma_ramp);
SDL_SetWindowGammaRamp( os::getSDLMainWindow(), gamma_ramp, (gamma_ramp+256), (gamma_ramp+512) );
vm_free(gamma_ramp);
}
}
void
GLVideoSystem::set_gamma(float gamma)
{
Uint16 ramp[256];
SDL_CalculateGammaRamp(gamma, ramp);
SDL_SetWindowGammaRamp(m_window, ramp, ramp, ramp);
}
void
SDLRenderer::set_gamma(float gamma)
{
Uint16 ramp[256];
SDL_CalculateGammaRamp(gamma, ramp);
SDL_SetWindowGammaRamp(m_window, ramp, ramp, ramp);
}
void
SDLBaseVideoSystem::set_gamma(float gamma)
{
Uint16 ramp[256];
SDL_CalculateGammaRamp(gamma, ramp);
SDL_SetWindowGammaRamp(m_sdl_window.get(), ramp, ramp, ramp);
}
VideoWrapper::~VideoWrapper()
{
SDL_SetWindowFullscreen(mWindow, 0);
// If user hasn't touched the defaults no need to restore
if (mHasSetGammaContrast)
SDL_SetWindowGammaRamp(mWindow, mOldSystemGammaRamp, &mOldSystemGammaRamp[256], &mOldSystemGammaRamp[512]);
}
/*
=================
GLimp_SetGamma
=================
*/
void GLimp_SetGamma( unsigned char red[256], unsigned char green[256], unsigned char blue[256] )
{
Uint16 table[3][256];
int i, j;
if( !glConfig.deviceSupportsGamma || r_ignorehwgamma->integer > 0 )
return;
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];
}
#ifdef _WIN32
#include <windows.h>
// Win2K and newer put this odd restriction on gamma ramps...
{
OSVERSIONINFO vinfo;
vinfo.dwOSVersionInfoSize = sizeof( vinfo );
GetVersionEx( &vinfo );
if( vinfo.dwMajorVersion >= 5 && vinfo.dwPlatformId == VER_PLATFORM_WIN32_NT )
{
ri.Printf( PRINT_DEVELOPER, "performing gamma clamp.\n" );
for( j = 0 ; j < 3 ; j++ )
{
for( i = 0 ; i < 128 ; i++ )
{
if( table[ j ] [ i] > ( ( 128 + i ) << 8 ) )
table[ j ][ i ] = ( 128 + i ) << 8;
}
if( table[ j ] [127 ] > 254 << 8 )
table[ j ][ 127 ] = 254 << 8;
}
}
}
#endif
// 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];
}
}
if (SDL_SetWindowGammaRamp(SDL_window, table[0], table[1], table[2]) < 0)
{
ri.Printf( PRINT_DEVELOPER, "SDL_SetWindowGammaRamp() failed: %s\n", SDL_GetError() );
}
}
/*
===============
GL_UpdateGammaRamp
===============
*/
void GL_UpdateGammaRamp( void )
{
if( !glConfig.deviceSupportsGamma ) return;
GL_BuildGammaTable();
#ifdef XASH_SDL
SDL_SetWindowGammaRamp( host.hWnd, &glState.gammaRamp[0], &glState.gammaRamp[256], &glState.gammaRamp[512] );
#endif
}
void
UpdateHardwareGamma(void)
{
float gamma = (vid_gamma->value);
Uint16 ramp[256];
CalculateGammaRamp(gamma, ramp, 256);
#if SDL_VERSION_ATLEAST(2, 0, 0)
if(SDL_SetWindowGammaRamp(window, ramp, ramp, ramp) != 0) {
#else
if(SDL_SetGammaRamp(ramp, ramp, ramp) < 0) {
#endif
VID_Printf(PRINT_ALL, "Setting gamma failed: %s\n", SDL_GetError());
}
}
#endif // X11GAMMA
static qboolean IsFullscreen()
{
#if SDL_VERSION_ATLEAST(2, 0, 0)
return !!(SDL_GetWindowFlags(window) & SDL_WINDOW_FULLSCREEN);
#else
return !!(window->flags & SDL_FULLSCREEN);
#endif
}
static qboolean CreateSDLWindow(int flags)
{
#if SDL_VERSION_ATLEAST(2, 0, 0)
int windowPos = SDL_WINDOWPOS_UNDEFINED;
// TODO: support fullscreen on different displays with SDL_WINDOWPOS_UNDEFINED_DISPLAY(displaynum)
window = SDL_CreateWindow("Yamagi Quake II", windowPos, windowPos,
vid.width, vid.height, flags);
if(window == NULL)
{
return false;
}
context = SDL_GL_CreateContext(window);
if(context == NULL)
{
SDL_DestroyWindow(window);
window = NULL;
return false;
}
return true;
#else
window = SDL_SetVideoMode(vid.width, vid.height, 0, flags);
SDL_EnableUNICODE(SDL_TRUE);
return window != NULL;
#endif
}
/*
=================
GLimp_SetGamma
=================
*/
void GLimp_SetGamma(unsigned short red[256], unsigned short green[256], unsigned short blue[256]) {
if ( !SDL_window ) {
common->Warning("GLimp_SetGamma called without window");
return;
}
#if SDL_VERSION_ATLEAST(2, 0, 0)
if (SDL_SetWindowGammaRamp( SDL_window, red, green, blue ))
#else
if (SDL_SetGammaRamp(red, green, blue))
#endif
common->Warning("Couldn't set gamma ramp: %s", SDL_GetError());
}
void VID_RestoreGamma( void )
{
if( !glConfig.deviceSupportsGamma )
return;
// don't touch gamma if multiple instances was running
if( VID_EnumerateInstances( ) > 1 ) return;
#if defined(XASH_SDL)
SDL_SetWindowGammaRamp( host.hWnd, &glState.stateRamp[0],
&glState.stateRamp[256], &glState.stateRamp[512] );
#endif
}
void WIN_SetGamma( glconfig_t *glConfig, byte red[256], byte green[256], byte blue[256] )
{
Uint16 table[3][256];
int i, j;
if( !glConfig->deviceSupportsGamma || r_ignorehwgamma->integer > 0 )
return;
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];
}
#if defined(_WIN32)
// Win2K and newer put this odd restriction on gamma ramps...
{
OSVERSIONINFO vinfo;
vinfo.dwOSVersionInfoSize = sizeof( vinfo );
GetVersionEx( &vinfo );
if( vinfo.dwMajorVersion >= 5 && vinfo.dwPlatformId == VER_PLATFORM_WIN32_NT )
{
Com_DPrintf( "performing gamma clamp.\n" );
for( j = 0 ; j < 3 ; j++ )
{
for( i = 0 ; i < 128 ; i++ )
{
table[j][i] = Q_min(table[j][i], (128 + i) << 8);
}
table[j][127] = Q_min(table[j][127], 254 << 8);
}
}
}
#endif
// 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_SetWindowGammaRamp(screen, table[0], table[1], table[2]);
}
/**
* TODO documentation
*/
void GLimp_SetGammaRamp( size_t stride, unsigned short size, unsigned short *ramp )
{
unsigned short ramp256[3 * 256];
if( size != 256 )
return;
memcpy( ramp256, ramp, size * sizeof( *ramp ) );
memcpy( ramp256 + 256, ramp + stride, size * sizeof( *ramp ) );
memcpy( ramp256 + 2 * 256, ramp + 2 * stride, size * sizeof( *ramp ) );
if( SDL_SetWindowGammaRamp( glw_state.sdl_window, ramp256, ramp256 + 256, ramp256 + ( 256 << 1 ) ) == -1 ) {
Com_Printf( "SDL_SetWindowGammaRamp(...) failed: ", SDL_GetError() );
}
}
void GraphicsManager::setGamma(float gamma) {
// Force calling it from the main thread
if (!Common::isMainThread()) {
Events::MainThreadFunctor<void> functor(boost::bind(&GraphicsManager::setGamma, this, gamma));
return RequestMan.callInMainThread(functor);
}
_gamma = gamma;
uint16* gammaRamp = 0;
SDL_CalculateGammaRamp(gamma, gammaRamp);
SDL_SetWindowGammaRamp(_screen, gammaRamp, gammaRamp, gammaRamp);
delete gammaRamp;
}
static int
SDL_SetGamma(SDL_Window *win, float red, float green, float blue)
{
Uint16 red_ramp[256];
Uint16 green_ramp[256];
Uint16 blue_ramp[256];
SDL_CalculateGammaRamp(red, red_ramp);
if (green == red) {
Com_Memcpy(&green_ramp, &red_ramp, sizeof(red_ramp));
} else {
SDL_CalculateGammaRamp(green, green_ramp);
}
if (blue == red) {
Com_Memcpy(blue_ramp, red_ramp, sizeof(red_ramp));
} else {
SDL_CalculateGammaRamp(blue, blue_ramp);
}
return SDL_SetWindowGammaRamp(win, red_ramp, green_ramp, blue_ramp);
}
void SetGamma(const uint8_t *red, const uint8_t *green, const uint8_t *blue)
{
uint16_t table[3][256];
for (int i = 0; i < 256; i++)
{
table[0][i] = (((uint16_t)red[i]) << 8) | red[i];
table[1][i] = (((uint16_t)green[i]) << 8) | green[i];
table[2][i] = (((uint16_t)blue[i]) << 8) | blue[i];
}
#ifdef _WIN32
// Win2K and newer put this odd restriction on gamma ramps...
for (int j = 0; j < 3; j++)
{
for (int i = 0; i < 128; i++)
{
if (table[j][i] >((128 + i) << 8))
table[j][i] = (128 + i) << 8;
}
if (table[j][127] > 254 << 8)
table[j][127] = 254 << 8;
}
#endif
// enforce constantly increasing
for (int j = 0; j < 3; j++)
{
for (int i = 1; i < 256; i++)
{
if (table[j][i] < table[j][i - 1])
table[j][i] = table[j][i - 1];
}
}
if (SDL_SetWindowGammaRamp(SDL_window, table[0], table[1], table[2]) < 0)
{
interface::PrintWarningf("SDL_SetWindowGammaRamp() failed: %s\n", SDL_GetError());
}
}
void SetGamma(double fGamma)
{
Uint16 pRawRamp[256];
SDL_CalculateGammaRamp((float)((std::min<double>)((std::max<double>)(fGamma, 0.0), 1.0)), pRawRamp);
SDL_SetWindowGammaRamp(m_Window, pRawRamp, pRawRamp, pRawRamp);
}
bool CVideoMode::InitSDL()
{
ENSURE(!m_IsInitialised);
ReadConfig();
EnableS3TC();
// preferred video mode = current desktop settings
// (command line params may override these)
gfx::GetVideoMode(&m_PreferredW, &m_PreferredH, &m_PreferredBPP, &m_PreferredFreq);
int w = m_ConfigW;
int h = m_ConfigH;
if (m_ConfigFullscreen)
{
// If fullscreen and no explicit size set, default to the desktop resolution
if (w == 0 || h == 0)
{
w = m_PreferredW;
h = m_PreferredH;
}
}
// If no size determined, default to something sensible
if (w == 0 || h == 0)
{
w = DEFAULT_WINDOW_W;
h = DEFAULT_WINDOW_H;
}
if (!m_ConfigFullscreen)
{
// Limit the window to the screen size (if known)
if (m_PreferredW)
w = std::min(w, m_PreferredW);
if (m_PreferredH)
h = std::min(h, m_PreferredH);
}
int bpp = GetBestBPP();
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
#if !SDL_VERSION_ATLEAST(1, 3, 0)
SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, g_VSync ? 1 : 0);
#endif
#if CONFIG2_GLES && SDL_VERSION_ATLEAST(1, 3, 0)
// Require GLES 2.0
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
#endif
if (!SetVideoMode(w, h, bpp, m_ConfigFullscreen))
{
// Fall back to a smaller depth buffer
// (The rendering may be ugly but this helps when running in VMware)
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
if (!SetVideoMode(w, h, bpp, m_ConfigFullscreen))
return false;
}
#if SDL_VERSION_ATLEAST(1, 3, 0)
SDL_GL_SetSwapInterval(g_VSync ? 1 : 0);
#endif
// Work around a bug in the proprietary Linux ATI driver (at least versions 8.16.20 and 8.14.13).
// The driver appears to register its own atexit hook on context creation.
// If this atexit hook is called before SDL_Quit destroys the OpenGL context,
// some kind of double-free problem causes a crash and lockup in the driver.
// Calling SDL_Quit twice appears to be harmless, though, and avoids the problem
// by destroying the context *before* the driver's atexit hook is called.
// (Note that atexit hooks are guaranteed to be called in reverse order of their registration.)
atexit(SDL_Quit);
// End work around.
ogl_Init(); // required after each mode change
// (TODO: does that mean we need to call this when toggling fullscreen later?)
#if SDL_VERSION_ATLEAST(2, 0, 0)
u16 ramp[256];
SDL_CalculateGammaRamp(g_Gamma, ramp);
if (SDL_SetWindowGammaRamp(m_Window, ramp, ramp, ramp) < 0)
LOGWARNING(L"SDL_SetGamma failed");
#else
if (SDL_SetGamma(g_Gamma, g_Gamma, g_Gamma) < 0)
LOGWARNING(L"SDL_SetGamma failed");
#endif
m_IsInitialised = true;
if (!m_ConfigFullscreen)
{
m_WindowedW = w;
m_WindowedH = h;
}
return true;
}
void VID_SetDeviceGammaRamp (unsigned short *ramps)
{
SDL_SetWindowGammaRamp(sdl_window, ramps, ramps+256,ramps+512);
vid_hwgamma_enabled = true;
}
void SDLHardwareRenderDevice::resetGamma() {
SDL_SetWindowGammaRamp(window, gamma_r, gamma_g, gamma_b);
}
/**
* @brief GLimp_SetGamma
* @param[in] red
* @param[in] green
* @param[in] blue
*/
void GLimp_SetGamma(unsigned char red[256], unsigned char green[256], unsigned char blue[256])
{
Uint16 table[3][256];
int i, j;
if (!cls.glconfig.deviceSupportsGamma || r_ignorehwgamma->integer > 0)
{
Com_Printf(S_COLOR_YELLOW "Device doesn't support gamma or r_ignorehwgamma is set.\n");
return;
}
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];
}
#ifdef _WIN32
// Win2K and newer put this odd restriction on gamma ramps...
{
OSVERSIONINFO vinfo;
vinfo.dwOSVersionInfoSize = sizeof(vinfo);
GetVersionEx(&vinfo);
if (vinfo.dwMajorVersion >= 5 && vinfo.dwPlatformId == VER_PLATFORM_WIN32_NT)
{
Com_DPrintf("performing gamma clamp.\n");
for (j = 0 ; j < 3 ; j++)
{
for (i = 0 ; i < 128 ; i++)
{
if (table[j][i] > ((128 + i) << 8))
{
table[j][i] = (128 + i) << 8;
}
}
if (table[j][127] > 254 << 8)
{
table[j][127] = 254 << 8;
}
}
}
}
#endif
// 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_SetWindowGammaRamp(main_window, table[0], table[1], table[2]);
}
/* Set the gamma level.
Based on Darkplaces implementation.
*/
void Window_SetGamma(unsigned short *usRamp, int iRampSize)
{
if (!SDL_SetWindowGammaRamp(sMainWindow, usRamp, usRamp + iRampSize, usRamp + iRampSize * 2))
Con_Warning("Failed to set gamma level!\n%s", SDL_GetError());
}
void SDLHardwareRenderDevice::setGamma(float g) {
Uint16 ramp[256];
SDL_CalculateGammaRamp(g, ramp);
SDL_SetWindowGammaRamp(window, ramp, ramp, ramp);
}
