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xash3d-fwgs/engine/platform/sdl/vid_sdl.c
Gleb Mazovetskiy 5e0a0765ce Trim all trailing whitespace 
The `.editorconfig` file in this repo is configured to trim all trailing
whitespace regardless of whether the line is modified.

Trims all trailing whitespace in the repository to make the codebase easier
to work with in editors that respect `.editorconfig`.

`git blame` becomes less useful on these lines but it already isn't very useful.

Commands:

```
find . -type f -name '*.h' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
find . -type f -name '*.c' -exec sed --in-place 's/[[:space:]]\+$//' {} \+
```
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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.
*/
#if !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 XASH_WIN32 && !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 XASH_WIN32 && !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 XASH_WIN32 && !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");
SDL_SetHint( "SDL_VIDEO_X11_FORCE_EGL", "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 ) && !XASH_WIN32
SDL_SetHint( "SDL_VIDEO_X11_XRANDR", "1" );
SDL_SetHint( "SDL_VIDEO_X11_XVIDMODE", "1" );
if( Sys_CheckParm( "-egl" ) )
SDL_SetHint( "SDL_VIDEO_X11_FORCE_EGL", "1" );
#endif
// must be initialized before creating window
#if XASH_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
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