/*
** qglGetGLWExtensionsString
*/
static const char *_qglGetGLWExtensionsStringInit( void ) {
int major = 0, minor = 0;
if( !qglXQueryVersion || !qglXQueryVersion( x11display.dpy, &major, &minor ) || !( minor > 0 || major > 1 ) ) {
qglXQueryExtensionsString = NULL;
}
qglGetGLWExtensionsString = _qglGetGLWExtensionsString;
return qglGetGLWExtensionsString();
}
/**
* Recreates and selects the surface for the newly created window, or selects a dummy buffer when there's no window.
*/
static void GLimp_Android_UpdateWindowSurface( void )
{
ANativeWindow *window = glw_state.window;
if( glw_state.surface != EGL_NO_SURFACE )
{
qeglDestroySurface( glw_state.display, glw_state.surface );
glw_state.surface = EGL_NO_SURFACE;
}
if( !window )
{
qeglMakeCurrent( glw_state.display, glw_state.pbufferSurface, glw_state.pbufferSurface, glw_state.context );
return;
}
ANativeWindow_setBuffersGeometry( window, glConfig.width, glConfig.height, glw_state.format );
if( glConfig.stereoEnabled )
{
const char *extensions = qglGetGLWExtensionsString();
if( extensions && strstr( extensions, "EGL_EXT_multiview_window" ) )
{
int attribs[] = { EGL_MULTIVIEW_VIEW_COUNT_EXT, 2, EGL_NONE };
glw_state.surface = qeglCreateWindowSurface( glw_state.display, glw_state.config, glw_state.window, attribs );
}
}
if( glw_state.surface == EGL_NO_SURFACE ) // Try to create a non-stereo surface.
{
glConfig.stereoEnabled = false;
glw_state.surface = qeglCreateWindowSurface( glw_state.display, glw_state.config, glw_state.window, NULL );
}
if( glw_state.surface == EGL_NO_SURFACE )
{
ri.Com_Printf( "GLimp_Android_UpdateWindowSurface() - GLimp_Android_CreateWindowSurface failed\n" );
return;
}
if( !qeglMakeCurrent( glw_state.display, glw_state.surface, glw_state.surface, glw_state.context ) )
{
ri.Com_Printf( "GLimp_Android_UpdateWindowSurface() - eglMakeCurrent failed\n" );
qeglDestroySurface( glw_state.display, glw_state.surface );
glw_state.surface = EGL_NO_SURFACE;
return;
}
qeglSwapInterval( glw_state.display, glw_state.swapInterval );
}
/*
** GLimp_Android_ChooseConfig
*/
static void GLimp_Android_ChooseConfig( void )
{
int colorSizes[] = { 8, 4 }, colorSize;
int depthSizes[] = { 24, 16, 16 }, depthSize, firstDepthSize = 0;
bool depthEncodingSupported = false;
int depthEncodings[] = { EGL_DONT_CARE, EGL_DEPTH_ENCODING_NONLINEAR_NV, EGL_DONT_CARE }, depthEncoding;
int maxStencilSize = ( ( r_stencilbits->integer >= 8 ) ? 8 : 0 ), stencilSize;
int minSwapIntervals[] = {
#ifndef PUBLIC_BUILD // Vsync cannot be normally turned off on Android, so the setting must not be available to the user.
0,
#endif
EGL_DONT_CARE
};
int minSwapInterval;
const char *extensions = qglGetGLWExtensionsString();
int i, j, k;
if( !( ri.Cvar_Get( "gl_ext_depth24", "1", CVAR_ARCHIVE|CVAR_LATCH_VIDEO )->integer ) )
firstDepthSize = 1;
if( extensions && strstr( extensions, "EGL_NV_depth_nonlinear" ) &&
ri.Cvar_Get( "gl_ext_depth_nonlinear", "1", CVAR_ARCHIVE|CVAR_LATCH_VIDEO )->integer )
{
depthEncodingSupported = true;
}
for( i = 0; i < sizeof( colorSizes ) / sizeof( colorSizes[0] ); i++ )
{
colorSize = colorSizes[i];
for( j = firstDepthSize; j < sizeof( depthSizes ) / sizeof( depthSizes[0] ); j++ )
{
depthEncoding = depthEncodings[j];
if( ( depthEncoding != EGL_DONT_CARE ) && !depthEncodingSupported )
continue;
depthSize = depthSizes[j];
for( stencilSize = maxStencilSize; stencilSize >= 0; stencilSize -= 8 )
{
for( k = 0; k < sizeof( minSwapIntervals ) / sizeof( minSwapIntervals[0] ); k++ )
{
EGLConfig config = GLimp_Android_ChooseVisual( colorSize, depthSize, depthEncoding, stencilSize, minSwapIntervals[k] );
if( config )
{
glw_state.config = config;
#ifdef PUBLIC_BUILD
minSwapInterval = 1;
#else
qeglGetConfigAttrib( glw_state.display, glw_state.config, EGL_MIN_SWAP_INTERVAL, &minSwapInterval );
#endif
ri.Com_Printf( "Got colorbits %i, depthbits %i%s, stencilbits %i"
#ifndef PUBLIC_BUILD
", min swap interval %i"
#endif
"\n"
, colorSize * 4, depthSize
, ( depthEncoding == EGL_DEPTH_ENCODING_NONLINEAR_NV ) ? " (non-linear)" : ""
, stencilSize
#ifndef PUBLIC_BUILD
, minSwapInterval
#endif
);
glConfig.stencilBits = stencilSize;
ri.Cvar_ForceSet( "r_swapinterval_min", ( minSwapInterval > 0 ) ? "1" : "0" );
return;
}
}
}
}
}
}