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Xash3D FWGS engine.
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xash3d-fwgs/engine/platform/sdl/vid_sdl.c

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/*
vid_sdl.c - SDL vid component
Copyright (C) 2018 a1batross
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 3 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.
*/
#ifndef XASH_DEDICATED
#include <SDL.h>
#include "common.h"
#include "client.h"
#include "mod_local.h"
#include "input.h"
#include "vid_common.h"
#include "platform/sdl/events.h"
static vidmode_t *vidmodes = NULL;
static int num_vidmodes = 0;
static void GL_SetupAttributes( void );
struct
{
int prev_width, prev_height;
} sdlState = { 640, 480 };
struct
{
#if SDL_VERSION_ATLEAST(2, 0, 0)
SDL_Renderer *renderer;
SDL_Texture *tex;
#endif
int width, height;
SDL_Surface *surf;
SDL_Surface *win;
} sw;
qboolean SW_CreateBuffer( int width, int height, uint *stride, uint *bpp, uint *r, uint *g, uint *b )
{
sw.width = width;
sw.height = height;
#if SDL_VERSION_ATLEAST(2, 0, 0)
if( sw.renderer )
{
unsigned int format = SDL_GetWindowPixelFormat( host.hWnd );
SDL_RenderSetLogicalSize(sw.renderer, refState.width, refState.height);
if( sw.tex )
SDL_DestroyTexture( sw.tex );
// guess
if( format == SDL_PIXELFORMAT_UNKNOWN )
{
if( refState.desktopBitsPixel == 16 )
format = SDL_PIXELFORMAT_RGB565;
else
format = SDL_PIXELFORMAT_RGBA8888;
}
// we can only copy fast 16 or 32 bits
// SDL_Renderer does not allow zero-copy, so 24 bits will be ineffective
if( !( SDL_BYTESPERPIXEL(format) == 2 || SDL_BYTESPERPIXEL(format) == 4 ) )
format = SDL_PIXELFORMAT_RGBA8888;
sw.tex = SDL_CreateTexture(sw.renderer, format,
SDL_TEXTUREACCESS_STREAMING,
width, height);
// fallback
if( !sw.tex && format != SDL_PIXELFORMAT_RGBA8888 )
{
format = SDL_PIXELFORMAT_RGBA8888;
sw.tex = SDL_CreateTexture(sw.renderer, format,
SDL_TEXTUREACCESS_STREAMING,
width, height);
}
if( !sw.tex )
{
SDL_DestroyRenderer( sw.renderer );
sw.renderer = NULL;
}
else
{
void *pixels;
int pitch;
if( !SDL_LockTexture(sw.tex, NULL, &pixels, &pitch ) )
{
int bits;
uint amask;
// lock successfull, release
SDL_UnlockTexture(sw.tex);
// enough for building blitter tables
SDL_PixelFormatEnumToMasks( format, &bits, r, g, b, &amask );
*bpp = SDL_BYTESPERPIXEL(format);
*stride = pitch / *bpp;
return true;
}
// fallback to surf
SDL_DestroyTexture(sw.tex);
sw.tex = NULL;
SDL_DestroyRenderer(sw.renderer);
sw.renderer = NULL;
}
}
#endif
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
if( !sw.renderer )
{
sw.win = SDL_GetWindowSurface( host.hWnd );
#else // SDL_VERSION_ATLEAST( 2, 0, 0 )
{
sw.win = SDL_GetVideoSurface();
#endif
// sdl will create renderer if hw framebuffer unavailiable, so cannot fallback here
// if it is failed, it is not possible to draw with SDL in REF_SOFTWARE mode
if( !sw.win )
{
Sys_Warn("failed to initialize software output, try enable sw_glblit");
return false;
}
*bpp = sw.win->format->BytesPerPixel;
*r = sw.win->format->Rmask;
*g = sw.win->format->Gmask;
*b = sw.win->format->Bmask;
*stride = sw.win->pitch / sw.win->format->BytesPerPixel;
/// TODO: check somehow if ref_soft can handle native format
#if 0
{
sw.surf = SDL_CreateRGBSurfaceWithFormat( 0, width, height, 16, SDL_PIXELFORMAT_RGB565 );
if( !sw.surf )
Sys_Error(SDL_GetError());
}
#endif
}
// we can't create ref_soft buffer
return false;
}
void *SW_LockBuffer( void )
{
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
if( sw.renderer )
{
void *pixels;
int stride;
if( SDL_LockTexture(sw.tex, NULL, &pixels, &stride ) )
Sys_Error("%s", SDL_GetError());
return pixels;
}
// ensure it not changed (do we really need this?)
sw.win = SDL_GetWindowSurface( host.hWnd );
//if( !sw.win )
//SDL_GetWindowSurface( host.hWnd );
#else // SDL_VERSION_ATLEAST( 2, 0, 0 )
sw.win = SDL_GetVideoSurface();
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
// prevent buffer overrun
if( !sw.win || sw.win->w < sw.width || sw.win->h < sw.height )
return NULL;
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
if( sw.surf )
{
SDL_LockSurface( sw.surf );
return sw.surf->pixels;
}
else
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
{
// real window pixels (x11 shm region, dma buffer, etc)
// or SDL_Renderer texture if not supported
SDL_LockSurface( sw.win );
return sw.win->pixels;
}
}
void SW_UnlockBuffer( void )
{
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
if( sw.renderer )
{
SDL_Rect src, dst;
src.x = src.y = 0;
src.w = sw.width;
src.h = sw.height;
dst = src;
SDL_UnlockTexture(sw.tex);
SDL_SetTextureBlendMode(sw.tex, SDL_BLENDMODE_NONE);
SDL_RenderCopy(sw.renderer, sw.tex, &src, &dst);
SDL_RenderPresent(sw.renderer);
return;
//Con_Printf("%s\n", SDL_GetError());
}
// blit if blitting surface availiable
if( sw.surf )
{
SDL_Rect src, dst;
src.x = src.y = 0;
src.w = sw.width;
src.h = sw.height;
dst = src;
SDL_UnlockSurface( sw.surf );
SDL_BlitSurface( sw.surf, &src, sw.win, &dst );
return;
}
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
// already blitted
SDL_UnlockSurface( sw.win );
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
SDL_UpdateWindowSurface( host.hWnd );
#else // SDL_VERSION_ATLEAST( 2, 0, 0 )
SDL_Flip( host.hWnd );
#endif
}
int R_MaxVideoModes( void )
{
return num_vidmodes;
}
vidmode_t *R_GetVideoMode( int num )
{
if( !vidmodes || num < 0 || num >= R_MaxVideoModes() )
{
return NULL;
}
return vidmodes + num;
}
static void R_InitVideoModes( void )
{
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
int displayIndex = 0; // TODO: handle multiple displays somehow
int i, modes;
num_vidmodes = 0;
modes = SDL_GetNumDisplayModes( displayIndex );
if( !modes )
return;
vidmodes = Mem_Malloc( host.mempool, modes * sizeof( vidmode_t ) );
for( i = 0; i < modes; i++ )
{
int j;
SDL_DisplayMode mode;
if( SDL_GetDisplayMode( displayIndex, i, &mode ) )
{
Msg( "SDL_GetDisplayMode: %s\n", SDL_GetError() );
continue;
}
if( mode.w < VID_MIN_WIDTH || mode.h < VID_MIN_HEIGHT )
continue;
for( j = 0; j < num_vidmodes; j++ )
{
if( mode.w == vidmodes[j].width &&
mode.h == vidmodes[j].height )
{
break;
}
}
if( j != num_vidmodes )
continue;
vidmodes[num_vidmodes].width = mode.w;
vidmodes[num_vidmodes].height = mode.h;
vidmodes[num_vidmodes].desc = copystring( va( "%ix%i", mode.w, mode.h ));
num_vidmodes++;
}
#else // SDL_VERSION_ATLEAST( 2, 0, 0 )
SDL_Rect **modes;
int len = 0, i = 0, j;
modes = SDL_ListModes( NULL, SDL_FULLSCREEN );
if( !modes || modes == (void*)-1 )
return;
for( len = 0; modes[len]; len++ );
vidmodes = Mem_Malloc( host.mempool, len * sizeof( vidmode_t ) );
// from smallest to largest
for( ; i < len; i++ )
{
SDL_Rect *mode = modes[len - i - 1];
for( j = 0; j < num_vidmodes; j++ )
{
if( mode->w == vidmodes[j].width &&
mode->h == vidmodes[j].height )
{
break;
}
}
if( j != num_vidmodes )
continue;
vidmodes[num_vidmodes].width = mode->w;
vidmodes[num_vidmodes].height = mode->h;
vidmodes[num_vidmodes].desc = copystring( va( "%ix%i", mode->w, mode->h ));
num_vidmodes++;
}
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
}
static void R_FreeVideoModes( void )
{
int i;
for( i = 0; i < num_vidmodes; i++ )
Mem_Free( (char*)vidmodes[i].desc );
Mem_Free( vidmodes );
vidmodes = NULL;
}
#ifdef WIN32
typedef enum _XASH_DPI_AWARENESS
{
XASH_DPI_UNAWARE = 0,
XASH_SYSTEM_DPI_AWARE = 1,
XASH_PER_MONITOR_DPI_AWARE = 2
} XASH_DPI_AWARENESS;
static void WIN_SetDPIAwareness( void )
{
HMODULE hModule;
HRESULT ( __stdcall *pSetProcessDpiAwareness )( XASH_DPI_AWARENESS );
BOOL ( __stdcall *pSetProcessDPIAware )( void );
BOOL bSuccess = FALSE;
if( ( hModule = LoadLibrary( "shcore.dll" ) ) )
{
if( ( pSetProcessDpiAwareness = (void*)GetProcAddress( hModule, "SetProcessDpiAwareness" ) ) )
{
// I hope SDL don't handle WM_DPICHANGED message
HRESULT hResult = pSetProcessDpiAwareness( XASH_SYSTEM_DPI_AWARE );
if( hResult == S_OK )
{
Con_Reportf( "SetDPIAwareness: Success\n" );
bSuccess = TRUE;
}
else if( hResult == E_INVALIDARG ) Con_Reportf( "SetDPIAwareness: Invalid argument\n" );
else if( hResult == E_ACCESSDENIED ) Con_Reportf( "SetDPIAwareness: Access Denied\n" );
}
else Con_Reportf( "SetDPIAwareness: Can't get SetProcessDpiAwareness\n" );
FreeLibrary( hModule );
}
else Con_Reportf( "SetDPIAwareness: Can't load shcore.dll\n" );
if( !bSuccess )
{
Con_Reportf( "SetDPIAwareness: Trying SetProcessDPIAware...\n" );
if( ( hModule = LoadLibrary( "user32.dll" ) ) )
{
if( ( pSetProcessDPIAware = ( void* )GetProcAddress( hModule, "SetProcessDPIAware" ) ) )
{
// I hope SDL don't handle WM_DPICHANGED message
BOOL hResult = pSetProcessDPIAware();
if( hResult )
{
Con_Reportf( "SetDPIAwareness: Success\n" );
bSuccess = TRUE;
}
else Con_Reportf( "SetDPIAwareness: fail\n" );
}
else Con_Reportf( "SetDPIAwareness: Can't get SetProcessDPIAware\n" );
FreeLibrary( hModule );
}
else Con_Reportf( "SetDPIAwareness: Can't load user32.dll\n" );
}
}
#endif
/*
=================
GL_GetProcAddress
=================
*/
void *GL_GetProcAddress( const char *name )
{
#if defined( XASH_NANOGL )
void *func = nanoGL_GetProcAddress( name );
#else
void *func = SDL_GL_GetProcAddress( name );
#endif
if( !func )
{
Con_Reportf( S_ERROR "Error: GL_GetProcAddress failed for %s\n", name );
}
return func;
}
/*
===============
GL_UpdateSwapInterval
===============
*/
void GL_UpdateSwapInterval( void )
{
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
// disable VSync while level is loading
if( cls.state < ca_active )
{
SDL_GL_SetSwapInterval( 0 );
SetBits( gl_vsync->flags, FCVAR_CHANGED );
}
else if( FBitSet( gl_vsync->flags, FCVAR_CHANGED ))
{
ClearBits( gl_vsync->flags, FCVAR_CHANGED );
if( SDL_GL_SetSwapInterval( gl_vsync->value ) )
Con_Reportf( S_ERROR "SDL_GL_SetSwapInterval: %s\n", SDL_GetError( ) );
}
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
}
/*
=================
GL_DeleteContext
always return false
=================
*/
qboolean GL_DeleteContext( void )
{
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
if( glw_state.context )
{
SDL_GL_DeleteContext(glw_state.context);
glw_state.context = NULL;
}
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
return false;
}
/*
=================
GL_CreateContext
=================
*/
qboolean GL_CreateContext( void )
{
#if SDL_VERSION_ATLEAST(2, 0, 0)
if( ( glw_state.context = SDL_GL_CreateContext( host.hWnd ) ) == NULL)
{
Con_Reportf( S_ERROR "GL_CreateContext: %s\n", SDL_GetError());
return GL_DeleteContext();
}
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
return true;
}
/*
=================
GL_UpdateContext
=================
*/
qboolean GL_UpdateContext( void )
{
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
if( SDL_GL_MakeCurrent( host.hWnd, glw_state.context ))
{
Con_Reportf( S_ERROR "GL_UpdateContext: %s\n", SDL_GetError());
return GL_DeleteContext();
}
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
return true;
}
void VID_SaveWindowSize( int width, int height )
{
int render_w = width, render_h = height;
uint rotate = vid_rotate->value;
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
if( !glw_state.software )
SDL_GL_GetDrawableSize( host.hWnd, &render_w, &render_h );
else
SDL_RenderSetLogicalSize( sw.renderer, width, height );
#endif
if( ref.dllFuncs.R_SetDisplayTransform( rotate, 0, 0, vid_scale->value, vid_scale->value ) )
{
if( rotate & 1 )
{
int swap = render_w;
render_w = render_h;
render_h = swap;
}
render_h /= vid_scale->value;
render_w /= vid_scale->value;
}
else
{
Con_Printf( S_WARN "failed to setup screen transform\n" );
}
R_SaveVideoMode( width, height, render_w, render_h );
}
static qboolean VID_SetScreenResolution( int width, int height )
{
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
SDL_DisplayMode want, got;
Uint32 wndFlags = 0;
static string wndname;
if( vid_highdpi->value ) wndFlags |= SDL_WINDOW_ALLOW_HIGHDPI;
Q_strncpy( wndname, GI->title, sizeof( wndname ));
want.w = width;
want.h = height;
want.driverdata = NULL;
want.format = want.refresh_rate = 0; // don't care
if( !SDL_GetClosestDisplayMode(0, &want, &got) )
return false;
Con_Reportf( "Got closest display mode: %ix%i@%i\n", got.w, got.h, got.refresh_rate);
if( SDL_SetWindowDisplayMode( host.hWnd, &got) == -1 )
return false;
if( SDL_SetWindowFullscreen( host.hWnd, SDL_WINDOW_FULLSCREEN) == -1 )
return false;
SDL_SetWindowBordered( host.hWnd, SDL_FALSE );
//SDL_SetWindowPosition( host.hWnd, 0, 0 );
SDL_SetWindowGrab( host.hWnd, SDL_TRUE );
SDL_SetWindowSize( host.hWnd, got.w, got.h );
VID_SaveWindowSize( got.w, got.h );
#else
VID_SaveWindowSize( width, height );
#endif
return true;
}
void VID_RestoreScreenResolution( void )
{
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
if( !Cvar_VariableInteger("fullscreen") )
{
SDL_SetWindowBordered( host.hWnd, SDL_TRUE );
SDL_SetWindowGrab( host.hWnd, SDL_FALSE );
}
else
{
SDL_MinimizeWindow( host.hWnd );
SDL_SetWindowFullscreen( host.hWnd, 0 );
}
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
}
#if defined(_WIN32) && !defined(XASH_64BIT) // ICO support only for Win32
#include "SDL_syswm.h"
static void WIN_SetWindowIcon( HICON ico )
{
SDL_SysWMinfo wminfo;
if( !ico )
return;
if( SDL_GetWindowWMInfo( host.hWnd, &wminfo ) )
{
SetClassLong( wminfo.info.win.window, GCL_HICON, (LONG)ico );
}
}
#endif
/*
=================
VID_CreateWindow
=================
*/
qboolean VID_CreateWindow( int width, int height, qboolean fullscreen )
{
static string wndname;
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
Uint32 wndFlags = SDL_WINDOW_OPENGL | SDL_WINDOW_SHOWN | SDL_WINDOW_MOUSE_FOCUS;
rgbdata_t *icon = NULL;
qboolean iconLoaded = false;
char iconpath[MAX_STRING];
int xpos, ypos;
if( vid_highdpi->value ) wndFlags |= SDL_WINDOW_ALLOW_HIGHDPI;
Q_strncpy( wndname, GI->title, sizeof( wndname ));
if( glw_state.software )
wndFlags &= ~SDL_WINDOW_OPENGL;
if( !fullscreen )
{
wndFlags |= SDL_WINDOW_RESIZABLE;
xpos = Cvar_VariableInteger( "_window_xpos" );
ypos = Cvar_VariableInteger( "_window_ypos" );
if( xpos < 0 ) xpos = SDL_WINDOWPOS_CENTERED;
if( ypos < 0 ) ypos = SDL_WINDOWPOS_CENTERED;
}
else
{
wndFlags |= SDL_WINDOW_FULLSCREEN | SDL_WINDOW_BORDERLESS | SDL_WINDOW_INPUT_GRABBED;
xpos = ypos = 0;
}
while( glw_state.safe >= SAFE_NO && glw_state.safe < SAFE_LAST )
{
host.hWnd = SDL_CreateWindow( wndname, xpos, ypos, width, height, wndFlags );
// we have window, exit loop
if( host.hWnd )
break;
Con_Reportf( S_ERROR "VID_CreateWindow: couldn't create '%s' with safegl level %d: %s\n", wndname, glw_state.safe, SDL_GetError());
glw_state.safe++;
if( !gl_wgl_msaa_samples->value && glw_state.safe == SAFE_NOMSAA )
glw_state.safe++; // no need to skip msaa, if we already disabled it
GL_SetupAttributes(); // re-choose attributes
// try again create window
}
// window creation has failed...
if( glw_state.safe >= SAFE_LAST )
{
return false;
}
if( fullscreen )
{
if( !VID_SetScreenResolution( width, height ) )
{
return false;
}
}
else
{
VID_RestoreScreenResolution();
}
#if defined(_WIN32) && !defined(XASH_64BIT) // ICO support only for Win32
if( FS_FileExists( GI->iconpath, true ) )
{
HICON ico;
char localPath[MAX_PATH];
Q_snprintf( localPath, sizeof( localPath ), "%s/%s", GI->gamefolder, GI->iconpath );
ico = (HICON)LoadImage( NULL, localPath, IMAGE_ICON, 0, 0, LR_LOADFROMFILE|LR_DEFAULTSIZE );
if( ico )
{
iconLoaded = true;
WIN_SetWindowIcon( ico );
}
}
#endif // _WIN32 && !XASH_64BIT
if( !iconLoaded )
{
Q_strcpy( iconpath, GI->iconpath );
COM_StripExtension( iconpath );
COM_DefaultExtension( iconpath, ".tga" );
icon = FS_LoadImage( iconpath, NULL, 0 );
if( icon )
{
SDL_Surface *surface = SDL_CreateRGBSurfaceFrom( icon->buffer,
icon->width, icon->height, 32, 4 * icon->width,
0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000 );
if( surface )
{
SDL_SetWindowIcon( host.hWnd, surface );
SDL_FreeSurface( surface );
iconLoaded = true;
}
FS_FreeImage( icon );
}
}
#if defined(_WIN32) && !defined(XASH_64BIT) // ICO support only for Win32
if( !iconLoaded )
{
WIN_SetWindowIcon( LoadIcon( host.hInst, MAKEINTRESOURCE( 101 ) ) );
iconLoaded = true;
}
#endif
SDL_ShowWindow( host.hWnd );
if( glw_state.software )
{
int sdl_renderer = -2;
char cmd[64];
if( Sys_GetParmFromCmdLine("-sdl_renderer", cmd ) )
sdl_renderer = Q_atoi( cmd );
if( sdl_renderer >= -1 )
{
sw.renderer = SDL_CreateRenderer( host.hWnd, sdl_renderer, 0 );
if( !sw.renderer )
Con_Printf( S_ERROR "failed to create SDL renderer: %s\n", SDL_GetError() );
else
{
SDL_RendererInfo info;
SDL_GetRendererInfo( sw.renderer, &info );
Con_Printf( "SDL_Renderer %s initialized\n", info.name );
}
}
}
else
{
if( !glw_state.initialized )
{
if( !GL_CreateContext( ))
return false;
VID_StartupGamma();
}
if( !GL_UpdateContext( ))
return false;
}
#else // SDL_VERSION_ATLEAST( 2, 0, 0 )
Uint32 flags = 0;
if( fullscreen )
{
flags |= SDL_FULLSCREEN|SDL_HWSURFACE;
}
if( glw_state.software )
{
// flags |= SDL_ASYNCBLIT;
}
else
{
flags |= SDL_OPENGL;
}
while( glw_state.safe >= SAFE_NO && glw_state.safe < SAFE_LAST )
{
host.hWnd = sw.surf = SDL_SetVideoMode( width, height, 16, flags );
// we have window, exit loop
if( host.hWnd )
break;
Con_Reportf( S_ERROR "VID_CreateWindow: couldn't create '%s' with safegl level %d: %s\n", wndname, glw_state.safe, SDL_GetError());
glw_state.safe++;
if( !gl_wgl_msaa_samples->value && glw_state.safe == SAFE_NOMSAA )
glw_state.safe++; // no need to skip msaa, if we already disabled it
GL_SetupAttributes(); // re-choose attributes
// try again create window
}
// window creation has failed...
if( glw_state.safe >= SAFE_LAST )
{
return false;
}
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
VID_SaveWindowSize( width, height );
return true;
}
/*
=================
VID_DestroyWindow
=================
*/
void VID_DestroyWindow( void )
{
GL_DeleteContext();
VID_RestoreScreenResolution();
if( host.hWnd )
{
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
SDL_DestroyWindow ( host.hWnd );
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
host.hWnd = NULL;
}
if( refState.fullScreen )
{
refState.fullScreen = false;
}
}
/*
==================
GL_SetupAttributes
==================
*/
static void GL_SetupAttributes( void )
{
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
SDL_GL_ResetAttributes();
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
ref.dllFuncs.GL_SetupAttributes( glw_state.safe );
}
void GL_SwapBuffers( void )
{
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
SDL_GL_SwapWindow( host.hWnd );
#else // SDL_VERSION_ATLEAST( 2, 0, 0 )
SDL_Flip( host.hWnd );
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
}
int GL_SetAttribute( int attr, int val )
{
switch( attr )
{
#define MAP_REF_API_ATTRIBUTE_TO_SDL( name ) case REF_##name: return SDL_GL_SetAttribute( SDL_##name, val );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_RED_SIZE );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_GREEN_SIZE );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_BLUE_SIZE );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_ALPHA_SIZE );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_DOUBLEBUFFER );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_DEPTH_SIZE );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_STENCIL_SIZE );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_MULTISAMPLEBUFFERS );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_MULTISAMPLESAMPLES );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_ACCELERATED_VISUAL );
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_MAJOR_VERSION );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_MINOR_VERSION );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_EGL );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_FLAGS );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_SHARE_WITH_CURRENT_CONTEXT );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_FRAMEBUFFER_SRGB_CAPABLE );
case REF_GL_CONTEXT_PROFILE_MASK:
#ifdef SDL_HINT_OPENGL_ES_DRIVER
if( val == REF_GL_CONTEXT_PROFILE_ES )
SDL_SetHint(SDL_HINT_OPENGL_ES_DRIVER, "1");
#endif // SDL_HINT_OPENGL_ES_DRIVER
return SDL_GL_SetAttribute( SDL_GL_CONTEXT_PROFILE_MASK, val );
#endif
#if SDL_VERSION_ATLEAST( 2, 0, 4 )
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_RELEASE_BEHAVIOR );
#endif
#if SDL_VERSION_ATLEAST( 2, 0, 6 )
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_RESET_NOTIFICATION );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_NO_ERROR );
#endif
#undef MAP_REF_API_ATTRIBUTE_TO_SDL
}
return -1;
}
int GL_GetAttribute( int attr, int *val )
{
switch( attr )
{
#define MAP_REF_API_ATTRIBUTE_TO_SDL( name ) case REF_##name: return SDL_GL_GetAttribute( SDL_##name, val );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_RED_SIZE );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_GREEN_SIZE );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_BLUE_SIZE );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_ALPHA_SIZE );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_DOUBLEBUFFER );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_DEPTH_SIZE );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_STENCIL_SIZE );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_MULTISAMPLEBUFFERS );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_MULTISAMPLESAMPLES );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_ACCELERATED_VISUAL );
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_MAJOR_VERSION );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_MINOR_VERSION );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_EGL );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_FLAGS );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_SHARE_WITH_CURRENT_CONTEXT );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_FRAMEBUFFER_SRGB_CAPABLE );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_PROFILE_MASK );
#endif
#if SDL_VERSION_ATLEAST( 2, 0, 4 )
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_RELEASE_BEHAVIOR );
#endif
#if SDL_VERSION_ATLEAST( 2, 0, 6 )
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_RESET_NOTIFICATION );
MAP_REF_API_ATTRIBUTE_TO_SDL( GL_CONTEXT_NO_ERROR );
#endif
#undef MAP_REF_API_ATTRIBUTE_TO_SDL
}
return 0;
}
#ifndef EGL_LIB
#define EGL_LIB NULL
#endif
/*
==================
R_Init_Video
==================
*/
qboolean R_Init_Video( const int type )
{
string safe;
qboolean retval;
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
SDL_DisplayMode displayMode;
SDL_GetCurrentDisplayMode(0, &displayMode);
refState.desktopBitsPixel = SDL_BITSPERPIXEL( displayMode.format );
#else
refState.desktopBitsPixel = 16;
#endif
#if SDL_VERSION_ATLEAST( 2, 0, 0 ) && !defined(_WIN32)
SDL_SetHint( "SDL_VIDEO_X11_XRANDR", "1" );
SDL_SetHint( "SDL_VIDEO_X11_XVIDMODE", "1" );
#endif
// must be initialized before creating window
#ifdef _WIN32
WIN_SetDPIAwareness();
#endif
switch( type )
{
case REF_SOFTWARE:
glw_state.software = true;
break;
case REF_GL:
if( !glw_state.safe && Sys_GetParmFromCmdLine( "-safegl", safe ) )
glw_state.safe = bound( SAFE_NO, Q_atoi( safe ), SAFE_DONTCARE );
// refdll can request some attributes
GL_SetupAttributes( );
if( SDL_GL_LoadLibrary( EGL_LIB ) )
{
Con_Reportf( S_ERROR "Couldn't initialize OpenGL: %s\n", SDL_GetError());
return false;
}
break;
default:
Host_Error( "Can't initialize unknown context type %d!\n", type );
break;
}
if( !(retval = VID_SetMode()) )
{
return retval;
}
switch( type )
{
case REF_GL:
// refdll also can check extensions
ref.dllFuncs.GL_InitExtensions();
break;
case REF_SOFTWARE:
default:
break;
}
R_InitVideoModes();
host.renderinfo_changed = false;
return true;
}
rserr_t R_ChangeDisplaySettings( int width, int height, qboolean fullscreen )
{
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
SDL_DisplayMode displayMode;
SDL_GetCurrentDisplayMode( 0, &displayMode );
// check our desktop attributes
refState.desktopBitsPixel = SDL_BITSPERPIXEL( displayMode.format );
#endif
Con_Reportf( "R_ChangeDisplaySettings: Setting video mode to %dx%d %s\n", width, height, fullscreen ? "fullscreen" : "windowed" );
refState.fullScreen = fullscreen;
if( !host.hWnd )
{
if( !VID_CreateWindow( width, height, fullscreen ) )
return rserr_invalid_mode;
}
else if( fullscreen )
{
if( !VID_SetScreenResolution( width, height ) )
return rserr_invalid_fullscreen;
}
else
{
VID_RestoreScreenResolution();
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
if( SDL_SetWindowFullscreen( host.hWnd, 0 ) )
return rserr_invalid_fullscreen;
#if SDL_VERSION_ATLEAST( 2, 0, 5 )
SDL_SetWindowResizable( host.hWnd, SDL_TRUE );
#endif
SDL_SetWindowBordered( host.hWnd, SDL_TRUE );
SDL_SetWindowSize( host.hWnd, width, height );
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
VID_SaveWindowSize( width, height );
}
return rserr_ok;
}
/*
==================
VID_SetMode
Set the described video mode
==================
*/
qboolean VID_SetMode( void )
{
qboolean fullscreen = false;
int iScreenWidth, iScreenHeight;
rserr_t err;
iScreenWidth = Cvar_VariableInteger( "width" );
iScreenHeight = Cvar_VariableInteger( "height" );
if( iScreenWidth < VID_MIN_WIDTH ||
iScreenHeight < VID_MIN_HEIGHT ) // trying to get resolution automatically by default
{
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
#if !defined( DEFAULT_MODE_WIDTH ) || !defined( DEFAULT_MODE_HEIGHT )
SDL_DisplayMode mode;
SDL_GetDesktopDisplayMode( 0, &mode );
iScreenWidth = mode.w;
iScreenHeight = mode.h;
#else
iScreenWidth = DEFAULT_MODE_WIDTH;
iScreenHeight = DEFAULT_MODE_HEIGHT;
#endif
#else // SDL_VERSION_ATLEAST( 2, 0, 0 )
iScreenWidth = 320;
iScreenHeight = 240;
#endif // SDL_VERSION_ATLEAST( 2, 0, 0 )
}
if( !FBitSet( vid_fullscreen->flags, FCVAR_CHANGED ) )
Cvar_SetValue( "fullscreen", DEFAULT_FULLSCREEN );
else
ClearBits( vid_fullscreen->flags, FCVAR_CHANGED );
SetBits( gl_vsync->flags, FCVAR_CHANGED );
fullscreen = Cvar_VariableInteger("fullscreen") != 0;
if(( err = R_ChangeDisplaySettings( iScreenWidth, iScreenHeight, fullscreen )) == rserr_ok )
{
sdlState.prev_width = iScreenWidth;
sdlState.prev_height = iScreenHeight;
}
else
{
if( err == rserr_invalid_fullscreen )
{
Cvar_SetValue( "fullscreen", 0 );
Con_Reportf( S_ERROR "VID_SetMode: fullscreen unavailable in this mode\n" );
Sys_Warn("fullscreen unavailable in this mode!");
if(( err = R_ChangeDisplaySettings( iScreenWidth, iScreenHeight, false )) == rserr_ok )
return true;
}
else if( err == rserr_invalid_mode )
{
Con_Reportf( S_ERROR "VID_SetMode: invalid mode\n" );
Sys_Warn( "invalid mode, engine will run in %dx%d", sdlState.prev_width, sdlState.prev_height );
}
// try setting it back to something safe
if(( err = R_ChangeDisplaySettings( sdlState.prev_width, sdlState.prev_height, false )) != rserr_ok )
{
Con_Reportf( S_ERROR "VID_SetMode: could not revert to safe mode\n" );
Sys_Warn("could not revert to safe mode!");
return false;
}
}
return true;
}
/*
==================
R_Free_Video
==================
*/
void R_Free_Video( void )
{
GL_DeleteContext ();
VID_DestroyWindow ();
R_FreeVideoModes();
ref.dllFuncs.GL_ClearExtensions();
#if SDL_VERSION_ATLEAST( 2, 0, 0 )
SDL_VideoQuit();
#endif
}
#endif // XASH_DEDICATED