XVisualInfo *qglx_findVisualInfo(Display *display, int screen, const QPlatformWindowFormat &format)
{
GLXFBConfig config = qglx_findConfig(display,screen,format);
XVisualInfo *visualInfo = glXGetVisualFromFBConfig(display,config);
return visualInfo;
}
static bool gfx_ctx_set_video_mode(void *data,
unsigned width, unsigned height,
bool fullscreen)
{
struct sigaction sa = {{0}};
sa.sa_handler = sighandler;
sa.sa_flags = SA_RESTART;
sigemptyset(&sa.sa_mask);
sigaction(SIGINT, &sa, NULL);
sigaction(SIGTERM, &sa, NULL);
int x_off = 0;
int y_off = 0;
bool windowed_full = g_settings.video.windowed_fullscreen;
bool true_full = false;
int (*old_handler)(Display*, XErrorEvent*) = NULL;
XSetWindowAttributes swa = {0};
XVisualInfo *vi = glXGetVisualFromFBConfig(g_dpy, g_fbc);
if (!vi)
goto error;
swa.colormap = g_cmap = XCreateColormap(g_dpy, RootWindow(g_dpy, vi->screen),
vi->visual, AllocNone);
swa.event_mask = StructureNotifyMask | KeyPressMask | KeyReleaseMask;
swa.override_redirect = fullscreen ? True : False;
if (fullscreen && !windowed_full)
{
if (x11_enter_fullscreen(g_dpy, width, height, &g_desktop_mode))
{
g_should_reset_mode = true;
true_full = true;
}
else
RARCH_ERR("[GLX]: Entering true fullscreen failed. Will attempt windowed mode.\n");
}
if (g_settings.video.monitor_index)
g_screen = g_settings.video.monitor_index - 1;
#ifdef HAVE_XINERAMA
if (fullscreen || g_screen != 0)
{
unsigned new_width = width;
unsigned new_height = height;
if (x11_get_xinerama_coord(g_dpy, g_screen, &x_off, &y_off, &new_width, &new_height))
RARCH_LOG("[GLX]: Using Xinerama on screen #%u.\n", g_screen);
else
RARCH_LOG("[GLX]: Xinerama is not active on screen.\n");
if (fullscreen)
{
width = new_width;
height = new_height;
}
}
#endif
RARCH_LOG("[GLX]: X = %d, Y = %d, W = %u, H = %u.\n",
x_off, y_off, width, height);
g_win = XCreateWindow(g_dpy, RootWindow(g_dpy, vi->screen),
x_off, y_off, width, height, 0,
vi->depth, InputOutput, vi->visual,
CWBorderPixel | CWColormap | CWEventMask | (true_full ? CWOverrideRedirect : 0), &swa);
XSetWindowBackground(g_dpy, g_win, 0);
g_glx_win = glXCreateWindow(g_dpy, g_fbc, g_win, 0);
x11_set_window_attr(g_dpy, g_win);
if (fullscreen)
x11_show_mouse(g_dpy, g_win, false);
if (true_full)
{
RARCH_LOG("[GLX]: Using true fullscreen.\n");
XMapRaised(g_dpy, g_win);
}
else if (fullscreen) // We attempted true fullscreen, but failed. Attempt using windowed fullscreen.
{
XMapRaised(g_dpy, g_win);
RARCH_LOG("[GLX]: Using windowed fullscreen.\n");
// We have to move the window to the screen we want to go fullscreen on first.
// x_off and y_off usually get ignored in XCreateWindow().
x11_move_window(g_dpy, g_win, x_off, y_off, width, height);
x11_windowed_fullscreen(g_dpy, g_win);
}
else
{
XMapWindow(g_dpy, g_win);
// If we want to map the window on a different screen, we'll have to do it by force.
// Otherwise, we should try to let the window manager sort it out.
// x_off and y_off usually get ignored in XCreateWindow().
if (g_screen)
x11_move_window(g_dpy, g_win, x_off, y_off, width, height);
}
XEvent event;
XIfEvent(g_dpy, &event, glx_wait_notify, NULL);
if (!g_ctx)
{
if (g_core || g_debug)
{
int attribs[16];
int *aptr = attribs;
if (g_core)
{
*aptr++ = GLX_CONTEXT_MAJOR_VERSION_ARB;
*aptr++ = g_major;
*aptr++ = GLX_CONTEXT_MINOR_VERSION_ARB;
*aptr++ = g_minor;
// Technically, we don't have core/compat until 3.2.
// Version 3.1 is either compat or not depending on GL_ARB_compatibility.
if ((g_major * 1000 + g_minor) >= 3002)
{
*aptr++ = GLX_CONTEXT_PROFILE_MASK_ARB;
*aptr++ = GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
}
}
if (g_debug)
{
*aptr++ = GLX_CONTEXT_FLAGS_ARB;
*aptr++ = GLX_CONTEXT_DEBUG_BIT_ARB;
}
*aptr = None;
g_ctx = glx_create_context_attribs(g_dpy, g_fbc, NULL, True, attribs);
if (g_use_hw_ctx)
{
RARCH_LOG("[GLX]: Creating shared HW context.\n");
g_hw_ctx = glx_create_context_attribs(g_dpy, g_fbc, g_ctx, True, attribs);
if (!g_hw_ctx)
RARCH_ERR("[GLX]: Failed to create new shared context.\n");
}
}
else
{
g_ctx = glXCreateNewContext(g_dpy, g_fbc, GLX_RGBA_TYPE, 0, True);
if (g_use_hw_ctx)
{
g_hw_ctx = glXCreateNewContext(g_dpy, g_fbc, GLX_RGBA_TYPE, g_ctx, True);
if (!g_hw_ctx)
RARCH_ERR("[GLX]: Failed to create new shared context.\n");
}
}
if (!g_ctx)
{
RARCH_ERR("[GLX]: Failed to create new context.\n");
goto error;
}
}
else
{
driver.video_cache_context_ack = true;
RARCH_LOG("[GLX]: Using cached GL context.\n");
}
glXMakeContextCurrent(g_dpy, g_glx_win, g_glx_win, g_ctx);
XSync(g_dpy, False);
g_quit_atom = XInternAtom(g_dpy, "WM_DELETE_WINDOW", False);
if (g_quit_atom)
XSetWMProtocols(g_dpy, g_win, &g_quit_atom, 1);
int val;
glXGetConfig(g_dpy, vi, GLX_DOUBLEBUFFER, &val);
g_is_double = val;
if (g_is_double)
{
const char *swap_func = NULL;
g_pglSwapIntervalEXT = (void (*)(Display*, GLXDrawable, int))glXGetProcAddress((const GLubyte*)"glXSwapIntervalEXT");
g_pglSwapInterval = (int (*)(int))glXGetProcAddress((const GLubyte*)"glXSwapIntervalMESA");
if (g_pglSwapIntervalEXT)
swap_func = "glXSwapIntervalEXT";
else if (g_pglSwapInterval)
swap_func = "glXSwapIntervalMESA";
if (!g_pglSwapInterval && !g_pglSwapIntervalEXT)
RARCH_WARN("[GLX]: Cannot find swap interval call.\n");
else
RARCH_LOG("[GLX]: Found swap function: %s.\n", swap_func);
}
else
RARCH_WARN("[GLX]: Context is not double buffered!.\n");
gfx_ctx_swap_interval(data, g_interval);
// This can blow up on some drivers. It's not fatal, so override errors for this call.
old_handler = XSetErrorHandler(nul_handler);
XSetInputFocus(g_dpy, g_win, RevertToNone, CurrentTime);
XSync(g_dpy, False);
XSetErrorHandler(old_handler);
XFree(vi);
g_has_focus = true;
g_inited = true;
if (!x11_create_input_context(g_dpy, g_win, &g_xim, &g_xic))
goto error;
driver.display_type = RARCH_DISPLAY_X11;
driver.video_display = (uintptr_t)g_dpy;
driver.video_window = (uintptr_t)g_win;
g_true_full = true_full;
return true;
error:
if (vi)
XFree(vi);
gfx_ctx_destroy(data);
return false;
}
void GetXVisual( XVisualInfo** vi )
{
// -- Check the GLX version, 1.3+ added FBConfigs
if ( ( x11::glx[0] == 1 && x11::glx[1] < 3 ) || ( x11::glx[0] < 1 ) )
{
GLint att[] = {
GLX_RGBA,
GLX_DOUBLEBUFFER,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_DEPTH_SIZE, 24,
None
};
if( (*vi = glXChooseVisual( x11::disp, 0, att )) == NULL )
{
printf( "Failed to get a legacy XVisualInfo!\n" );
exit( EXIT_FAILURE );
}
}
else
{
// -- Make an FBConfig attribute list
int visual_attribs[] =
{
GLX_X_RENDERABLE , True,
GLX_DRAWABLE_TYPE , GLX_WINDOW_BIT,
GLX_RENDER_TYPE , GLX_RGBA_BIT,
GLX_X_VISUAL_TYPE , GLX_TRUE_COLOR,
GLX_RED_SIZE , 8,
GLX_GREEN_SIZE , 8,
GLX_BLUE_SIZE , 8,
GLX_DEPTH_SIZE , 24,
GLX_DOUBLEBUFFER , True,
// -- MSAA
//GLX_SAMPLE_BUFFERS , 1,
//GLX_SAMPLES , 4,
None
};
// -- Get a list of matching FrameBuffer Configs
int fbcount;
GLXFBConfig *fbc = glXChooseFBConfig( x11::disp, DefaultScreen( x11::disp ), visual_attribs, &fbcount );
if ( !fbc )
{
printf( "Failed to retrieve a framebuffer config\n" );
exit( EXIT_FAILURE );
}
x11::fbconfig = fbc[0];
XFree( fbc );
// -- Get the VisualInfo associated with this Config
if ( (*vi = glXGetVisualFromFBConfig( x11::disp, x11::fbconfig )) == 0 )
{
printf( "Failed to get the XVisual from the FBConfig!\n" );
exit( EXIT_FAILURE );
}
}
}
static void
make_window( Display *dpy, const char *name,
int x, int y, int width, int height,
Window *winRet, GLXContext *ctxRet)
{
int scrnum;
XSetWindowAttributes attr;
unsigned long mask;
Window root;
Window win;
GLXContext ctx;
XVisualInfo *visinfo;
scrnum = DefaultScreen( dpy );
root = RootWindow( dpy, scrnum );
// 3.2 support
//#ifdef glXCreateContextAttribsARB
if (gContextVersionMajor > 2)
{
// We asked for OpenGL3+, but can we do it?
typedef GLXContext (*glXCreateContextAttribsARBProc)(Display*, GLXFBConfig, GLXContext, Bool, const int*);
// Verify GL driver supports glXCreateContextAttribsARB()
glXCreateContextAttribsARBProc glXCreateContextAttribsARB = 0;
// Verify that GLX implementation supports the new context create call
if ( strstr( glXQueryExtensionsString( dpy, scrnum ),
"GLX_ARB_create_context" ) != 0 )
glXCreateContextAttribsARB = (glXCreateContextAttribsARBProc)
glXGetProcAddress( (const GLubyte *) "glXCreateContextAttribsARB" );
if ( !glXCreateContextAttribsARB )
{
printf( "Can't create new-style GL context\n" );
}
// We need this for OpenGL3
int elemc;
GLXFBConfig *fbcfg;
int attribs[] = { GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT, // ?
GLX_RED_SIZE, 1, // 1 = prefer high precision
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_ALPHA_SIZE, 1,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None };
int i = 12;
if (gMode & GLUT_DOUBLE)
{
attribs[i++] = GLX_DOUBLEBUFFER;
attribs[i++] = 1;
}
if (gMode & GLUT_DEPTH)
{
attribs[i++] = GLX_DEPTH_SIZE;
attribs[i++] = 1;
}
if (gMode & GLUT_STENCIL)
{
attribs[i++] = GLX_STENCIL_SIZE;
attribs[i++] = 8; // Smallest available, at least 8. Configurable setting needed!
}
if (gMode & GLUT_MULTISAMPLE)
{
attribs[i++] = GLX_SAMPLE_BUFFERS;
attribs[i++] = 1;
attribs[i++] = GLX_SAMPLES;
attribs[i++] = 4;
}
fbcfg = glXChooseFBConfig(dpy, scrnum, attribs, &elemc);
if (!fbcfg)
{
fbcfg = glXChooseFBConfig(dpy, scrnum, NULL, &elemc);
}
if (!fbcfg)
printf("Couldn't get FB configs\n");
int gl3attr[] =
{
GLX_CONTEXT_MAJOR_VERSION_ARB, gContextVersionMajor,
GLX_CONTEXT_MINOR_VERSION_ARB, gContextVersionMinor,
// GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_DEBUG_BIT_ARB,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
None
};
ctx = glXCreateContextAttribsARB(dpy, fbcfg[0], NULL, 1, gl3attr);
if (ctx == NULL) printf("No ctx!\n");
visinfo = glXGetVisualFromFBConfig(dpy, fbcfg[0]);
if (!visinfo)
printf("Error: couldn't create OpenGL window with this pixel format.\n");
}
else // old style
//#endif
{
int attribs[] = { GLX_RGBA,
GLX_RED_SIZE, 1, // 1 = prefer high precision
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None,
None };
int i = 7;
if (gMode & GLUT_DOUBLE)
attribs[i++] = GLX_DOUBLEBUFFER;
if (gMode & GLUT_DEPTH)
{
attribs[i++] = GLX_DEPTH_SIZE;
attribs[i++] = 1;
}
if (gMode & GLUT_STENCIL)
{
attribs[i++] = GLX_STENCIL_SIZE;
attribs[i++] = 8; // Smallest available, at least 8. Configurable setting needed!
}
visinfo = glXChooseVisual( dpy, scrnum, attribs );
if (!visinfo)
{
printf("Error: couldn't get a visual according to settings\n");
exit(1);
}
ctx = glXCreateContext( dpy, visinfo, 0, True );
if (ctx == NULL) printf("No ctx!\n");
}
/* window attributes */
attr.background_pixel = 0;
attr.border_pixel = 0;
attr.colormap = XCreateColormap( dpy, root, visinfo->visual, AllocNone);
attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPress | ButtonReleaseMask | Button1MotionMask | PointerMotionMask;
attr.override_redirect = 0;
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask | CWOverrideRedirect;
win = XCreateWindow( dpy, root, x, y, width, height,
0, visinfo->depth, InputOutput,
visinfo->visual, mask, &attr );
// Register delete!
wmDeleteMessage = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
XSetWMProtocols(dpy, win, &wmDeleteMessage, 1); // Register
/* set hints and properties */
XSizeHints sizehints;
sizehints.x = x;
sizehints.y = y;
sizehints.width = width;
sizehints.height = height;
sizehints.flags = USSize | USPosition;
XSetNormalHints(dpy, win, &sizehints);
XSetStandardProperties(dpy, win, name, name,
None, (char **)NULL, 0, &sizehints);
if (!ctx)
{
printf("Error: glXCreateContext failed\n");
exit(1);
}
XFree(visinfo);
*winRet = win;
*ctxRet = ctx;
}
static int createContext(_GLFWwindow* window,
const _GLFWwndconfig* wndconfig,
GLXFBConfigID fbconfigID)
{
int attribs[40];
GLXFBConfig* fbconfig;
GLXContext share = NULL;
if (wndconfig->share)
share = wndconfig->share->GLX.context;
// Retrieve the previously selected GLXFBConfig
{
int dummy, index = 0;
setGLXattrib(GLX_FBCONFIG_ID, (int) fbconfigID);
setGLXattrib(None, None);
if (_glfwLibrary.GLX.SGIX_fbconfig)
{
fbconfig =
_glfwLibrary.GLX.ChooseFBConfigSGIX(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
attribs,
&dummy);
}
else
{
fbconfig = glXChooseFBConfig(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
attribs,
&dummy);
}
if (fbconfig == NULL)
{
_glfwSetError(GLFW_PLATFORM_ERROR,
"GLX: Failed to retrieve the selected GLXFBConfig");
return GL_FALSE;
}
}
// Retrieve the corresponding visual
if (_glfwLibrary.GLX.SGIX_fbconfig)
{
window->GLX.visual =
_glfwLibrary.GLX.GetVisualFromFBConfigSGIX(_glfwLibrary.X11.display,
*fbconfig);
}
else
{
window->GLX.visual = glXGetVisualFromFBConfig(_glfwLibrary.X11.display,
*fbconfig);
}
if (window->GLX.visual == NULL)
{
XFree(fbconfig);
_glfwSetError(GLFW_PLATFORM_ERROR,
"GLX: Failed to retrieve visual for GLXFBConfig");
return GL_FALSE;
}
if (wndconfig->clientAPI == GLFW_OPENGL_ES_API)
{
if (!_glfwLibrary.GLX.ARB_create_context ||
!_glfwLibrary.GLX.ARB_create_context_profile ||
!_glfwLibrary.GLX.EXT_create_context_es2_profile)
{
_glfwSetError(GLFW_VERSION_UNAVAILABLE,
"GLX: OpenGL ES requested but "
"GLX_EXT_create_context_es2_profile is unavailable");
return GL_FALSE;
}
}
if (wndconfig->glForward)
{
if (!_glfwLibrary.GLX.ARB_create_context)
{
_glfwSetError(GLFW_VERSION_UNAVAILABLE,
"GLX: Forward compatibility requested but "
"GLX_ARB_create_context_profile is unavailable");
return GL_FALSE;
}
}
if (wndconfig->glProfile)
{
if (!_glfwLibrary.GLX.ARB_create_context ||
!_glfwLibrary.GLX.ARB_create_context_profile)
{
_glfwSetError(GLFW_VERSION_UNAVAILABLE,
"GLX: An OpenGL profile requested but "
"GLX_ARB_create_context_profile is unavailable");
return GL_FALSE;
}
}
if (_glfwLibrary.GLX.ARB_create_context)
{
int index = 0, mask = 0, flags = 0, strategy = 0;
if (wndconfig->clientAPI == GLFW_OPENGL_API)
{
if (wndconfig->glForward)
flags |= GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
if (wndconfig->glDebug)
flags |= GLX_CONTEXT_DEBUG_BIT_ARB;
if (wndconfig->glProfile)
{
if (wndconfig->glProfile == GLFW_OPENGL_CORE_PROFILE)
mask |= GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
else if (wndconfig->glProfile == GLFW_OPENGL_COMPAT_PROFILE)
mask |= GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
}
}
else
mask |= GLX_CONTEXT_ES2_PROFILE_BIT_EXT;
if (wndconfig->glRobustness != GLFW_NO_ROBUSTNESS)
{
if (_glfwLibrary.GLX.ARB_create_context_robustness)
{
if (wndconfig->glRobustness == GLFW_NO_RESET_NOTIFICATION)
strategy = GLX_NO_RESET_NOTIFICATION_ARB;
else if (wndconfig->glRobustness == GLFW_LOSE_CONTEXT_ON_RESET)
strategy = GLX_LOSE_CONTEXT_ON_RESET_ARB;
flags |= GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB;
}
}
if (wndconfig->glMajor != 1 || wndconfig->glMinor != 0)
{
// NOTE: Only request an explicitly versioned context when
// necessary, as explicitly requesting version 1.0 does not always
// return the highest available version
setGLXattrib(GLX_CONTEXT_MAJOR_VERSION_ARB, wndconfig->glMajor);
setGLXattrib(GLX_CONTEXT_MINOR_VERSION_ARB, wndconfig->glMinor);
}
if (mask)
setGLXattrib(GLX_CONTEXT_PROFILE_MASK_ARB, mask);
if (flags)
setGLXattrib(GLX_CONTEXT_FLAGS_ARB, flags);
if (strategy)
setGLXattrib(GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, strategy);
setGLXattrib(None, None);
// This is the only place we set an Xlib error handler, and we only do
// it because glXCreateContextAttribsARB generates a BadMatch error if
// the requested OpenGL version is unavailable (instead of a civilized
// response like returning NULL)
_glfwErrorCode = Success;
XSetErrorHandler(errorHandler);
window->GLX.context =
_glfwLibrary.GLX.CreateContextAttribsARB(_glfwLibrary.X11.display,
*fbconfig,
share,
True,
attribs);
// We are done, so unset the error handler again (see above)
XSetErrorHandler(NULL);
if (window->GLX.context == NULL)
{
// HACK: This is a fallback for the broken Mesa implementation of
// GLX_ARB_create_context_profile, which fails default 1.0 context
// creation with a GLXBadProfileARB error in violation of the spec
if (_glfwErrorCode == _glfwLibrary.GLX.errorBase + GLXBadProfileARB &&
wndconfig->clientAPI == GLFW_OPENGL_API &&
wndconfig->glProfile == GLFW_OPENGL_NO_PROFILE &&
wndconfig->glForward == GL_FALSE)
{
createLegacyContext(window, wndconfig, *fbconfig, share);
}
}
}
else
createLegacyContext(window, wndconfig, *fbconfig, share);
XFree(fbconfig);
if (window->GLX.context == NULL)
{
_glfwSetError(GLFW_PLATFORM_ERROR, "GLX: Failed to create context");
return GL_FALSE;
}
return GL_TRUE;
}
int main(int argc, char **argv)
{
opt_data opts; optproc(argc, argv, &opts);
if(audio_init(&opts) < 0) exit(1);
int x = 0, y = 0, w, h;
if(opts.w < 0 && opts.h < 0) opts.w = opts.h = 512;
else if(opts.w < 0) opts.w = opts.h;
else if(opts.h < 0) opts.h = opts.w;
w = opts.w; h = opts.h;
XEvent event;
dpy = XOpenDisplay( NULL );
if(dpy == NULL) {
printf("Error: couldn't open display %s\n", getenv("DISPLAY"));
exit(EXIT_FAILURE);
}
int glx_major, glx_minor;
if(!glXQueryVersion(dpy, &glx_major, &glx_minor)) {
printf("GLX extension missing!\n");
XCloseDisplay(dpy);
exit(EXIT_FAILURE);
}
printf("GLX version %i.%i\n", glx_major, glx_minor);
int glxErrBase, glxEventBase;
glXQueryExtension(dpy, &glxErrBase, &glxEventBase);
printf("GLX: errorBase = %i, eventBase = %i\n", glxErrBase, glxEventBase);
Window xwin, root;
int numReturned;
GLXFBConfig *fbConfigs;
fbConfigs = glXChooseFBConfig( dpy, DefaultScreen(dpy), fbattrib, &numReturned );
if(fbConfigs == NULL) { //TODO: handle this?
printf("No suitable fbconfigs!\n");
exit(EXIT_FAILURE);
}
XVisualInfo *vinfo = glXGetVisualFromFBConfig( dpy, fbConfigs[0] );
root = DefaultRootWindow(dpy);
/* window attributes */
XSetWindowAttributes attrs;
attrs.background_pixel = 0;
attrs.border_pixel = 0;
attrs.colormap = XCreateColormap(dpy, root, vinfo->visual, AllocNone);
//attrs.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask;
attrs.event_mask = StructureNotifyMask | KeyPressMask;
unsigned long mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
xwin = XCreateWindow(dpy, root, x, y, w, h,
0, vinfo->depth, InputOutput,
vinfo->visual, mask, &attrs);
XFree(vinfo);
// Set hints and properties:
{
XSizeHints sizehints;
sizehints.x = x;
sizehints.y = y;
sizehints.width = w;
sizehints.height = h;
sizehints.flags = USSize | USPosition;
XSetNormalHints(dpy, xwin, &sizehints);
XSetStandardProperties(dpy, xwin, "Julia-vis", "Julia-vis",
None, (char **)NULL, 0, &sizehints);
}
/* Create a GLX context for OpenGL rendering */
GLXContext context = glXCreateNewContext(dpy, fbConfigs[0], GLX_RGBA_TYPE, NULL, True );
#if 0
GLXContext context = 0;
glXCreateContextAttribsARBProc glXCreateContextAttribsARB = 0;
glXCreateContextAttribsARB = (glXCreateContextAttribsARBProc)glXGetProcAddressARB( (const GLubyte *) "glXCreateContextAttribsARB" );
if(strstr(glXQueryExtensionsString(dpy, 0), "GLX_ARB_create_context") || !glXCreateContextAttribsARB) {
printf("glXCreateContextAttribsARB() not found ... using old-style GLX context\n");
context = glXCreateNewContext(dpy, fbConfigs[0], GLX_RGBA_TYPE, 0, True);
} else {
const int context_attribs[] = {
GLX_RENDER_TYPE, GLX_RGBA_TYPE,
GLX_CONTEXT_MAJOR_VERSION_ARB, 2,
GLX_CONTEXT_MINOR_VERSION_ARB, 1,
None
};
context = glXCreateContextAttribsARB(dpy, fbConfigs[0], NULL, True, context_attribs);
}
if(context == NULL) {
printf("Failed to create context!\n");
return EXIT_FAILURE;
}
#endif
glxWin = glXCreateWindow(dpy, fbConfigs[0], xwin, NULL );
XMapWindow(dpy, xwin);
XIfEvent(dpy, &event, WaitForNotify, (XPointer) xwin);
glXMakeContextCurrent(dpy, glxWin, glxWin, context);
init_gl(&opts, w, h);
if(strstr(glXQueryExtensionsString(dpy, 0), "GLX_MESA_swap_control")) {
PFNGLXSWAPINTERVALMESAPROC swap_interval = glXGetProcAddressARB("glXSwapIntervalMESA");
swap_interval(1);
opts.draw_rate = 300;
}
if(strstr(glXQueryExtensionsString(dpy, 0), "GLX_INTEL_swap_event")) {
glXSelectEvent(dpy, glxWin, GLX_BUFFER_SWAP_COMPLETE_INTEL_MASK);
have_intel_swap_event = GL_TRUE;
}
int debug_maxsrc = 0, debug_pal = 0, show_mandel = 0, show_fps_hist = 0;
if(have_intel_swap_event)
render_frame(debug_maxsrc, debug_pal, show_mandel, show_fps_hist);
while(1) {
if(!have_intel_swap_event) render_frame(debug_maxsrc, debug_pal, show_mandel, show_fps_hist);
int clear_key = 1;
while (XPending(dpy) > 0)
{
XNextEvent(dpy, &event);
if(event.type == glxEventBase + GLX_BufferSwapComplete) {
render_frame(debug_maxsrc, debug_pal, show_mandel, show_fps_hist);
continue;
}
switch (event.type) {
case Expose:
/* we'll redraw below */
break;
/*case ConfigureNotify:
window_w = event.xconfigure.width;
window_h = event.xconfigure.height;
if (surface_type == EGL_WINDOW_BIT)
reshape(window_w, window_h);
break;*/
case KeyPress:
{
clear_key = 0;
char buffer[10];
int r, code;
code = XLookupKeysym(&event.xkey, 0);
if (code == XK_F1) {
debug_maxsrc = !debug_maxsrc;
} else if (code == XK_F2) {
debug_pal = !debug_pal;
} else if (code == XK_F3) {
show_mandel = !show_mandel;
} else if (code == XK_F4) {
show_fps_hist = !show_fps_hist;
} else {
code = XLookupKeysym(&event.xkey, 1);
if(code == XK_Escape) {
goto glx_main_loop_quit;
}
}
}
break;
default:
//printf("Bar %i!\n", event.type);
break;
}
}
}
glx_main_loop_quit:
audio_shutdown();
XDestroyWindow(dpy, xwin);
XCloseDisplay(dpy);
return 0;
}
GFX_PlatformWindow _gfx_platform_window_create(
const GFX_PlatformAttributes* attributes)
{
/* Setup the x11 window */
GFX_X11_Window window;
window.monitor = attributes->monitor;
window.context = NULL;
window.flags = 0;
window.flags |=
attributes->flags & GFX_WINDOW_RESIZABLE ?
GFX_X11_RESIZABLE : 0;
window.flags |=
attributes->flags & GFX_WINDOW_HIDDEN ?
GFX_X11_HIDDEN : 0;
/* Get display mode & position */
GFXDisplayMode mode;
int x = window.monitor->x;
int y = window.monitor->y;
if(attributes->flags & GFX_WINDOW_FULLSCREEN)
{
window.flags |= GFX_X11_FULLSCREEN;
GFX_X11_Mode* it = gfx_vector_at(
&_gfx_x11.modes,
window.monitor->modes[attributes->mode]
);
window.mode = it->id;
mode = it->mode;
}
else
{
mode.width = attributes->w;
mode.height = attributes->h;
mode.depth = *attributes->depth;
x += attributes->x;
y += attributes->y;
}
/* Get FB Config */
GLXFBConfig* config = _gfx_x11_get_config(
window.monitor->screen,
&mode.depth,
attributes->flags & GFX_WINDOW_DOUBLE_BUFFER
);
if(!config) return NULL;
/* Get visual from config */
XVisualInfo* visual = glXGetVisualFromFBConfig(
_gfx_x11.display,
*config
);
window.config = *config;
XFree(config);
/* Create the window attributes */
unsigned long mask = CWColormap | CWEventMask;
XSetWindowAttributes attr;
if(
attributes->flags & GFX_WINDOW_BORDERLESS ||
attributes->flags & GFX_WINDOW_FULLSCREEN)
{
/* Borderless window */
mask |= CWBorderPixel;
attr.border_pixel = 0;
}
/* Event mask & Color map */
Window root =
XRootWindowOfScreen(window.monitor->screen);
attr.event_mask =
KeyPressMask |
KeyReleaseMask |
PointerMotionMask |
EnterWindowMask |
LeaveWindowMask |
ButtonPressMask |
ButtonReleaseMask |
StructureNotifyMask |
FocusChangeMask;
attr.colormap = XCreateColormap(
_gfx_x11.display,
root,
visual->visual,
AllocNone
);
/* Create the actual window */
window.handle = XCreateWindow(
_gfx_x11.display,
root,
x,
y,
mode.width,
mode.height,
0,
visual->depth,
InputOutput,
visual->visual,
mask,
&attr
);
XFree(visual);
if(window.handle)
{
/* Get properties to check for events */
XWindowAttributes get;
get.x = 0;
get.y = 0;
get.width = 0;
get.height = 0;
XGetWindowAttributes(_gfx_x11.display, window.handle, &get);
window.x = get.x;
window.y = get.y;
window.width = get.width;
window.height = get.height;
/* Delete protocol & name */
XSetWMProtocols(
_gfx_x11.display,
window.handle,
&_gfx_x11.WM_DELETE_WINDOW,
1);
XStoreName(
_gfx_x11.display,
window.handle,
attributes->name);
/* Disable decorations */
if(mask & CWBorderPixel)
{
unsigned long hints[5];
hints[0] = MWM_HINTS_DECORATIONS;
hints[2] = 0;
XChangeProperty(
_gfx_x11.display,
window.handle,
_gfx_x11.MOTIF_WM_HINTS,
_gfx_x11.MOTIF_WM_HINTS,
32,
PropModeReplace,
(unsigned char*)hints,
5);
}
/* Bypass compositor */
if(attributes->flags & GFX_WINDOW_FULLSCREEN)
{
unsigned long bypass = 1;
XChangeProperty(
_gfx_x11.display,
window.handle,
_gfx_x11.NET_WM_BYPASS_COMPOSITOR,
XA_CARDINAL,
32,
PropModeReplace,
(unsigned char*)&bypass,
1
);
}
/* Set size hints */
if(!(attributes->flags & GFX_WINDOW_RESIZABLE))
{
XSizeHints* hints = XAllocSizeHints();
hints->flags = PMinSize | PMaxSize;
hints->min_width = mode.width;
hints->max_width = mode.width;
hints->min_height = mode.height;
hints->max_height = mode.height;
XSetWMNormalHints(_gfx_x11.display, window.handle, hints);
XFree(hints);
}
/* Add window to vector */
GFXVectorIterator it = gfx_vector_insert(
&_gfx_x11.windows,
&window,
_gfx_x11.windows.end
);
if(it != _gfx_x11.windows.end)
{
/* Make it visible */
/* Triggers FocusIn event for fullscreen */
if(!(attributes->flags & GFX_WINDOW_HIDDEN))
XMapWindow(_gfx_x11.display, window.handle);
return GFX_UINT_TO_VOID(window.handle);
}
XDestroyWindow(_gfx_x11.display, window.handle);
}
XFreeColormap(_gfx_x11.display, attr.colormap);
return NULL;
}
void GlContext::create(uint32_t _width, uint32_t _height)
{
BX_UNUSED(_width, _height);
XLockDisplay(s_display);
int major, minor;
bool version = glXQueryVersion(s_display, &major, &minor);
BGFX_FATAL(version, Fatal::UnableToInitialize, "Failed to query GLX version");
BGFX_FATAL( (major == 1 && minor >= 2) || major > 1
, Fatal::UnableToInitialize
, "GLX version is not >=1.2 (%d.%d)."
, major
, minor
);
int32_t screen = DefaultScreen(s_display);
const char* extensions = glXQueryExtensionsString(s_display, screen);
BX_TRACE("GLX extensions:");
dumpExtensions(extensions);
const int attrsGlx[] =
{
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
GLX_DOUBLEBUFFER, true,
GLX_RED_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_GREEN_SIZE, 8,
// GLX_ALPHA_SIZE, 8,
GLX_DEPTH_SIZE, 24,
GLX_STENCIL_SIZE, 8,
0,
};
// Find suitable config
GLXFBConfig bestConfig = NULL;
int numConfigs;
GLXFBConfig* configs = glXChooseFBConfig(s_display, screen, attrsGlx, &numConfigs);
BX_TRACE("glX num configs %d", numConfigs);
XVisualInfo* visualInfo = NULL;
for (int ii = 0; ii < numConfigs; ++ii)
{
visualInfo = glXGetVisualFromFBConfig(s_display, configs[ii]);
if (NULL != visualInfo)
{
BX_TRACE("---");
bool valid = true;
for (uint32_t attr = 6; attr < BX_COUNTOF(attrsGlx)-1 && attrsGlx[attr] != None; attr += 2)
{
int value;
glXGetFBConfigAttrib(s_display, configs[ii], attrsGlx[attr], &value);
BX_TRACE("glX %d/%d %2d: %4x, %8x (%8x%s)"
, ii
, numConfigs
, attr/2
, attrsGlx[attr]
, value
, attrsGlx[attr + 1]
, value < attrsGlx[attr + 1] ? " *" : ""
);
if (value < attrsGlx[attr + 1])
{
valid = false;
#if !BGFX_CONFIG_DEBUG
break;
#endif // BGFX_CONFIG_DEBUG
}
}
if (valid)
{
bestConfig = configs[ii];
BX_TRACE("Best config %d.", ii);
break;
}
}
XFree(visualInfo);
visualInfo = NULL;
}
XFree(configs);
BGFX_FATAL(visualInfo, Fatal::UnableToInitialize, "Failed to find a suitable X11 display configuration.");
BX_TRACE("Create GL 2.1 context.");
m_context = glXCreateContext(s_display, visualInfo, 0, GL_TRUE);
BGFX_FATAL(NULL != m_context, Fatal::UnableToInitialize, "Failed to create GL 2.1 context.");
XFree(visualInfo);
#if BGFX_CONFIG_RENDERER_OPENGL >= 31
glXCreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC)glXGetProcAddress( (const GLubyte*)"glXCreateContextAttribsARB");
if (NULL != glXCreateContextAttribsARB)
{
BX_TRACE("Create GL 3.1 context.");
const int contextAttrs[] =
{
GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
GLX_CONTEXT_MINOR_VERSION_ARB, 1,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
0,
};
GLXContext context = glXCreateContextAttribsARB(s_display, bestConfig, 0, true, contextAttrs);
if (NULL != context)
{
glXDestroyContext(s_display, m_context);
m_context = context;
}
}
#else
BX_UNUSED(bestConfig);
#endif // BGFX_CONFIG_RENDERER_OPENGL >= 31
XUnlockDisplay(s_display);
import();
glXMakeCurrent(s_display, s_window, m_context);
glXSwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)glXGetProcAddress( (const GLubyte*)"glXSwapIntervalEXT");
if (NULL != glXSwapIntervalEXT)
{
BX_TRACE("Using glXSwapIntervalEXT.");
glXSwapIntervalEXT(s_display, s_window, 0);
}
else
{
glXSwapIntervalMESA = (PFNGLXSWAPINTERVALMESAPROC)glXGetProcAddress( (const GLubyte*)"glXSwapIntervalMESA");
if (NULL != glXSwapIntervalMESA)
{
BX_TRACE("Using glXSwapIntervalMESA.");
glXSwapIntervalMESA(0);
}
else
{
glXSwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)glXGetProcAddress( (const GLubyte*)"glXSwapIntervalSGI");
if (NULL != glXSwapIntervalSGI)
{
BX_TRACE("Using glXSwapIntervalSGI.");
glXSwapIntervalSGI(0);
}
}
}
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
glXSwapBuffers(s_display, s_window);
}
void init_display()
{
int surface_type_id, result, i, value, scrn, num_fbconfigs;
GLXFBConfig *fbconfigs;
XVisualInfo *visInfo;
XSetWindowAttributes attributes;
Window root;
int attrib_pbuffer[6] = {GLX_PBUFFER_WIDTH, 0,
GLX_PBUFFER_HEIGHT, 0,
GLX_PRESERVED_CONTENTS,
0};
width = horizontal_size;
height = vertical_size;
if(chroma_format != CHROMA420)
error("we only support 4:2:0 chroma formats\n");
display = XOpenDisplay(NULL);
root = XDefaultRootWindow(display);
scrn = XDefaultScreen(display);
if(!GetPortId(display, &portNum, &surface_type_id))
error("couldn't find a suitable port\n");
#ifdef USE_DLOPEN
if(!ResolveFunctions(DLFILENAME))
error("couldn't resolve necessary functions\n");
#endif
result = XvMCCreateContext(display, portNum, surface_type_id,
coded_picture_width, coded_picture_height,
XVMC_DIRECT, &context);
if(result != Success)
error("couldn't create XvMCContext\n");
for(i = 0; i < numsurfaces; i++) {
result = XvMCCreateSurface(display, &context, &surfaces[i]);
if(result != Success) {
if(i < 4) {
XvMCDestroyContext(display, &context);
error("couldn't create enough XvMCSurfaces\n");
} else {
numsurfaces = i;
printf("could only allocate %i surfaces\n", numsurfaces);
}
}
surface_info[i].reference = 0;
surface_info[i].sequence_number = 0;
}
slices = slices * mb_width;
XvMCCreateBlocks(display, &context, slices * 6, &blocks);
XvMCCreateMacroBlocks(display, &context, slices, ¯o_blocks);
fbconfigs = glXChooseFBConfig(display, scrn, attr_fbconfig, &num_fbconfigs);
gl_fbconfig = *fbconfigs;
/* find the first one with no depth buffer */
for(i = 0; i < num_fbconfigs; i++) {
glXGetFBConfigAttrib(display, fbconfigs[i], GLX_DEPTH_SIZE, &value);
if(value == 0) {
gl_fbconfig = fbconfigs[i];
break;
}
}
PrintVisual();
visInfo = glXGetVisualFromFBConfig(display, gl_fbconfig);
attrib_pbuffer[1] = width;
attrib_pbuffer[3] = bob ? (height/2) : height;
gl_pbuffer = glXCreatePbuffer(display, gl_fbconfig, attrib_pbuffer);
gl_context = glXCreateNewContext(display, gl_fbconfig, GLX_RGBA_TYPE,
NULL, 1);
attributes.colormap = XCreateColormap(display, root, visInfo->visual,
AllocNone);
window = XCreateWindow(display, root, 0, 0, width, height, 0,
visInfo->depth, InputOutput,
visInfo->visual, CWColormap, &attributes);
gl_window = glXCreateWindow(display, gl_fbconfig, window, NULL);
XSelectInput(display, window, KeyPressMask | StructureNotifyMask |
Button1MotionMask | ButtonPressMask);
XMapWindow(display, window);
glXMakeContextCurrent(display, gl_window, gl_pbuffer, gl_context);
glDrawBuffer(GL_BACK);
glReadBuffer(GL_FRONT_LEFT);
tex_w = 1 << PowerOfTwo(width);
tex_h = 1 << PowerOfTwo(bob ? (height/2) : height);
printf("%i x %i texture\n", tex_w, tex_h);
glClearColor (0.0, 0.0, 0.0, 0.0);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexImage2D(GL_TEXTURE_2D, 0, 3, tex_w, tex_h,
0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
glEnable(GL_TEXTURE_2D);
glShadeModel(GL_FLAT);
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glFrustum(-1.0, 1.0, -1.0, 1.0, 2, 18.0);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glTranslatef(0.0, 0.0, -8);
#ifdef USE_NV_FENCE
glGenFencesNV(1, &nvFence);
glSetFenceNV(&nvFence, GL_ALL_COMPLETED_NV);
#endif
XSync(display, 0);
uiclp = uiclip+512;
for (i= -512; i<512; i++)
uiclp[i] = (i<-128) ? 0 : ((i>127) ? 255 : i+128);
iclp = iclip+512;
for (i= -512; i<512; i++)
iclp[i] = (i<-128) ? -128 : ((i>127) ? 127 : i);
niclp = niclip+512;
for (i= -512; i<512; i++)
niclp[i] = (i<-256) ? -256 : ((i>255) ? 255 : i);
}
int main(void) {
glXGetProcAddress_fn glXGetProcAddress_ptr;
glXChooseFBConfig_fn glXChooseFBConfig_ptr;
glXGetVisualFromFBConfig_fn glXGetVisualFromFBConfig_ptr;
glXCreateContext_fn glXCreateContext_ptr;
glXMakeCurrent_fn glXMakeCurrent_ptr;
glXSwapBuffers_fn glXSwapBuffers_ptr;
void *libgl;
GLXFBConfig *fbc;
int fbcount;
int attrib[] = {
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
GLX_DOUBLEBUFFER, True,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_DEPTH_SIZE, 24,
GLX_STENCIL_SIZE, 8,
None
};
XVisualInfo *visinfo;
XSetWindowAttributes attr;
Display *disp;
Window win;
GLXContext ctx;
libgl = dlopen("libGL.so.1", RTLD_LAZY);
glXGetProcAddress = dlsym(libgl, "glXGetProcAddress");
glXChooseFBConfig = (glXChooseFBConfig_fn) glXGetProcAddress((const GLubyte *) "glXChooseFBConfig");
glXGetVisualFromFBConfig = (glXGetVisualFromFBConfig_fn) glXGetProcAddress((const GLubyte *) "glXGetVisualFromFBConfig");
glXCreateContext = (glXCreateContext_fn) glXGetProcAddress((const GLubyte *) "glXCreateContext");
glXMakeCurrent = (glXMakeCurrent_fn) glXGetProcAddress((const GLubyte *) "glXMakeCurrent");
glXSwapBuffers = (glXSwapBuffers_fn) glXGetProcAddress((const GLubyte *) "glXSwapBuffers");
disp = XOpenDisplay(NULL);
fbc = glXChooseFBConfig(disp, DefaultScreen(disp), attrib, &fbcount);
visinfo = glXGetVisualFromFBConfig(disp, fbc[0]);
attr.background_pixel = 0;
attr.border_pixel = 0;
attr.colormap = XCreateColormap(disp, RootWindow(disp, DefaultScreen(disp)), visinfo->visual, AllocNone);
attr.event_mask = StructureNotifyMask | ExposureMask | KeyPressMask | KeyReleaseMask | PointerMotionMask | ButtonPressMask | ButtonReleaseMask;
win = XCreateWindow(disp, RootWindow(disp, DefaultScreen(disp)),
0, 0, 600, 600,
0, visinfo->depth, InputOutput, visinfo->visual,
CWBackPixel | CWBorderPixel | CWColormap | CWEventMask, &attr);
XMapWindow(disp, win);
ctx = glXCreateContext(disp, visinfo, NULL, True);
glXMakeCurrent(disp, win, ctx);
load_opengl_commands();
while (1) {
if (XPending(disp)) {
XEvent evt;
XNextEvent(disp, &evt);
switch (evt.type) {
case KeyPress:
return 0;
}
} else {
struct timeval tp;
float time;
gettimeofday(&tp, NULL);
time = tp.tv_sec + tp.tv_usec / 1e6;
glXSwapBuffers(disp, win);
}
}
}
agpu_device *_agpu_device::open(agpu_device_open_info* openInfo)
{
// Ensure X11 threads are initialized
XInitThreads();
// Create the device.
std::unique_ptr<agpu_device> device(new agpu_device);
bool failure = false;
// Perform the main context creation in
device->mainContextJobQueue.start();
AsyncJob contextCreationJob([&] {
std::unique_ptr<OpenGLContext> contextWrapper(new OpenGLContext());
const char *displayName = nullptr;
if(openInfo->display)
displayName = ((Display*)openInfo->display)->display_name;
contextWrapper->display = XOpenDisplay(displayName);
if(!contextWrapper->display)
{
failure = true;
return;
}
// Create a simple context.
int visualAttributes[] {
GLX_X_RENDERABLE, True,
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_X_VISUAL_TYPE, GLX_TRUE_COLOR,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_ALPHA_SIZE, 8,
GLX_DOUBLEBUFFER, True,
None, None
};
// Find the framebuffer config.
GLXFBConfig framebufferConfig;
if(!findFramebufferConfig(contextWrapper->display, &visualAttributes[0], framebufferConfig))
{
failure = true;
return;
}
contextWrapper->framebufferConfig = framebufferConfig;
// Get a visual
XVisualInfo *vi = glXGetVisualFromFBConfig( contextWrapper->display, framebufferConfig );
XSetWindowAttributes swa;
Colormap cmap;
swa.colormap = cmap = XCreateColormap( contextWrapper->display,
RootWindow( contextWrapper->display, vi->screen ),
vi->visual, AllocNone );
swa.background_pixmap = None ;
swa.border_pixel = 0;
swa.event_mask = StructureNotifyMask;
Window win = XCreateWindow( contextWrapper->display, RootWindow( contextWrapper->display, vi->screen ),
0, 0, 4, 4, 0, vi->depth, InputOutput,
vi->visual,
CWBorderPixel|CWColormap|CWEventMask, &swa );
if ( !win )
{
printf( "Failed to create window.\n" );
failure = true;
}
// Done with the visual info data
XFree( vi );
XStoreName( contextWrapper->display, win, "AGPU dummy window" );
//Store the window in the context wrapper.
contextWrapper->ownsWindow = true;
contextWrapper->window = win;
// Get the default screen's GLX extension list
const char *glxExts = glXQueryExtensionsString( contextWrapper->display,
DefaultScreen( contextWrapper->display ) );
// NOTE: It is not necessary to create or make current to a context before
// calling glXGetProcAddressARB
auto glXCreateContextAttribsARB = (glXCreateContextAttribsARBProc)
glXGetProcAddressARB( (const GLubyte *) "glXCreateContextAttribsARB" );
contextWrapper->glXCreateContextAttribsARB = glXCreateContextAttribsARB;
GLXContext context = 0;
// Install an X error handler so the application won't exit if GL 3.0
// context allocation fails.
std::unique_lock<std::mutex> l(contextErrorMutex);
ctxErrorOccurred = false;
auto oldHandler = XSetErrorHandler(&ctxErrorHandler);
// Check for the GLX_ARB_create_context extension string and the function.
// If either is not present, use GLX 1.3 context creation method.
if ( !agpu_device::isExtensionSupported( glxExts, "GLX_ARB_create_context" ) ||
!glXCreateContextAttribsARB )
{
printError("glXCreateContextAttribsARB() not found... using old-style GLX context\n" );
context = glXCreateNewContext( contextWrapper->display, framebufferConfig, GLX_RGBA_TYPE, 0, True );
}
else
{
int contextAttributes[] =
{
GLX_CONTEXT_MAJOR_VERSION_ARB, 0,
GLX_CONTEXT_MINOR_VERSION_ARB, 0,
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
//GLX_CONTEXT_FLAGS_ARB , GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
None
};
for(int versionIndex = 0; GLContextVersionPriorities[versionIndex] != OpenGLVersion::Invalid; ++versionIndex)
{
auto version = (int)GLContextVersionPriorities[versionIndex];
// GLX_CONTEXT_MAJOR_VERSION_ARB
contextAttributes[1] = version / 10;
// GLX_CONTEXT_MINOR_VERSION_ARB
contextAttributes[3] = version % 10;
if(contextAttributes[1] < 3)
contextAttributes[4] = 0;
context = glXCreateContextAttribsARB( contextWrapper->display, framebufferConfig, 0, True, contextAttributes );
// Sync to ensure any errors generated are processed.
XSync( contextWrapper->display, False );
// Check for success.
if(!ctxErrorOccurred && context)
{
contextWrapper->version = OpenGLVersion(version);
break;
}
ctxErrorOccurred = false;
}
// Check failure.
if ( ctxErrorOccurred || !context )
{
// Couldn't create GL 3.0 context. Fall back to old-style 2.x context.
// When a context version below 3.0 is requested, implementations will
// return the newest context version compatible with OpenGL versions less
// than version 3.0.
// GLX_CONTEXT_MAJOR_VERSION_ARB = 1
contextAttributes[1] = 1;
// GLX_CONTEXT_MINOR_VERSION_ARB = 0
contextAttributes[3] = 0;
contextAttributes[4] = 0;
contextWrapper->version = OpenGLVersion::Version10;
ctxErrorOccurred = false;
context = glXCreateContextAttribsARB( contextWrapper->display, framebufferConfig, 0, True, contextAttributes );
}
}
// Sync to ensure any errors generated are processed.
XSync( contextWrapper->display, False );
// Restore the original error handler
XSetErrorHandler( oldHandler );
if ( ctxErrorOccurred || !context )
{
printError("Failed to create an OpenGL context\n" );
failure = true;
return;
}
// Store the context in the wrapper.
contextWrapper->context = context;
if(!contextWrapper->makeCurrent())
{
printError("Failed to make current the main OpenGL context.\n");
contextWrapper->destroy();
failure = true;
return;
}
// Initialize the device objects.
device->mainContext = contextWrapper.release();
device->mainContext->device = device.get();
device->initializeObjects();
});
device->mainContextJobQueue.addJob(&contextCreationJob);
contextCreationJob.wait();
if(failure)
return nullptr;
return device.release();
}
void GlxContext::createContext(GlxContext* shared)
{
// Get a working copy of the context settings
ContextSettings settings = m_settings;
XVisualInfo* visualInfo = NULL;
if (m_pbuffer)
{
unsigned int fbConfigId = 0;
glXQueryDrawable(m_display, m_pbuffer, GLX_FBCONFIG_ID, &fbConfigId);
int attributes[] =
{
GLX_FBCONFIG_ID, static_cast<int>(fbConfigId),
0, 0
};
int count = 0;
GLXFBConfig* fbconfig = glXChooseFBConfig(m_display, DefaultScreen(m_display), attributes, &count);
if (count == 1)
visualInfo = glXGetVisualFromFBConfig(m_display, *fbconfig);
if (fbconfig)
XFree(fbconfig);
}
else
{
// Retrieve the attributes of the target window
XWindowAttributes windowAttributes;
if (XGetWindowAttributes(m_display, m_window, &windowAttributes) == 0)
{
err() << "Failed to get the window attributes" << std::endl;
return;
}
// Get its visuals
XVisualInfo tpl;
tpl.screen = DefaultScreen(m_display);
tpl.visualid = XVisualIDFromVisual(windowAttributes.visual);
int nbVisuals = 0;
visualInfo = XGetVisualInfo(m_display, VisualIDMask | VisualScreenMask, &tpl, &nbVisuals);
}
if (!visualInfo)
{
err() << "Failed to get visual info" << std::endl;
return;
}
// Get the context to share display lists with
GLXContext toShare = shared ? shared->m_context : NULL;
// There are no GLX versions prior to 1.0
int major = 0;
int minor = 0;
if (!glXQueryVersion(m_display, &major, &minor))
err() << "Failed to query GLX version, limited to legacy context creation" << std::endl;
// Check if glXCreateContextAttribsARB is available (requires GLX 1.3 or greater)
bool hasCreateContextArb = (sfglx_ext_ARB_create_context == sfglx_LOAD_SUCCEEDED) && ((major > 1) || (minor >= 3));
// Create the OpenGL context -- first try using glXCreateContextAttribsARB
if (hasCreateContextArb)
{
// Get a GLXFBConfig that matches the window's visual, for glXCreateContextAttribsARB
GLXFBConfig* config = NULL;
// We don't supply attributes to match against, since
// the visual we are matching against was already
// deemed suitable in selectBestVisual()
int nbConfigs = 0;
GLXFBConfig* configs = glXChooseFBConfig(m_display, DefaultScreen(m_display), NULL, &nbConfigs);
for (int i = 0; configs && (i < nbConfigs); ++i)
{
XVisualInfo* visual = glXGetVisualFromFBConfig(m_display, configs[i]);
if (!visual)
continue;
if (visual->visualid == visualInfo->visualid)
{
config = &configs[i];
break;
}
}
if (!config)
err() << "Failed to get GLXFBConfig which corresponds to the window's visual" << std::endl;
while (config && !m_context && m_settings.majorVersion)
{
std::vector<int> attributes;
// Check if the user requested a specific context version (anything > 1.1)
if ((m_settings.majorVersion > 1) || ((m_settings.majorVersion == 1) && (m_settings.minorVersion > 1)))
{
attributes.push_back(GLX_CONTEXT_MAJOR_VERSION_ARB);
attributes.push_back(m_settings.majorVersion);
attributes.push_back(GLX_CONTEXT_MINOR_VERSION_ARB);
attributes.push_back(m_settings.minorVersion);
}
// Check if setting the profile is supported
if (sfglx_ext_ARB_create_context_profile == sfglx_LOAD_SUCCEEDED)
{
int profile = (m_settings.attributeFlags & ContextSettings::Core) ? GLX_CONTEXT_CORE_PROFILE_BIT_ARB : GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
int debug = (m_settings.attributeFlags & ContextSettings::Debug) ? GLX_CONTEXT_DEBUG_BIT_ARB : 0;
attributes.push_back(GLX_CONTEXT_PROFILE_MASK_ARB);
attributes.push_back(profile);
attributes.push_back(GLX_CONTEXT_FLAGS_ARB);
attributes.push_back(debug);
}
else
{
if ((m_settings.attributeFlags & ContextSettings::Core) || (m_settings.attributeFlags & ContextSettings::Debug))
err() << "Selecting a profile during context creation is not supported,"
<< "disabling comptibility and debug" << std::endl;
m_settings.attributeFlags = ContextSettings::Default;
}
// Append the terminating 0
attributes.push_back(0);
attributes.push_back(0);
// RAII GLX error handler (we simply ignore errors here)
// On an error, glXCreateContextAttribsARB will return 0 anyway
GlxErrorHandler handler(m_display);
// Create the context
m_context = glXCreateContextAttribsARB(m_display, *config, toShare, true, &attributes[0]);
if (!m_context)
{
// If we couldn't create the context, first try disabling flags,
// then lower the version number and try again -- stop at 0.0
// Invalid version numbers will be generated by this algorithm (like 3.9), but we really don't care
if (m_settings.attributeFlags != ContextSettings::Default)
{
m_settings.attributeFlags = ContextSettings::Default;
}
else if (m_settings.minorVersion > 0)
{
// If the minor version is not 0, we decrease it and try again
m_settings.minorVersion--;
m_settings.attributeFlags = settings.attributeFlags;
}
else
{
// If the minor version is 0, we decrease the major version
m_settings.majorVersion--;
m_settings.minorVersion = 9;
m_settings.attributeFlags = settings.attributeFlags;
}
}
}
if (configs)
XFree(configs);
}
// If glXCreateContextAttribsARB failed, use glXCreateContext
if (!m_context)
{
// set the context version to 2.1 (arbitrary) and disable flags
m_settings.majorVersion = 2;
m_settings.minorVersion = 1;
m_settings.attributeFlags = ContextSettings::Default;
#if defined(GLX_DEBUGGING)
GlxErrorHandler handler(m_display);
#endif
// Create the context, using the target window's visual
m_context = glXCreateContext(m_display, visualInfo, toShare, true);
#if defined(GLX_DEBUGGING)
if (glxErrorOccurred)
err() << "GLX error in GlxContext::createContext()" << std::endl;
#endif
}
if (!m_context)
err() << "Failed to create an OpenGL context for this window" << std::endl;
// Free the visual info
XFree(visualInfo);
}
void GlxContext::createSurface(GlxContext* shared, unsigned int width, unsigned int height, unsigned int bitsPerPixel)
{
m_display = OpenDisplay();
m_connection = XGetXCBConnection(m_display);
// Choose the visual according to the context settings
XVisualInfo visualInfo = selectBestVisual(m_display, bitsPerPixel, m_settings);
// Check if the shared context already exists and pbuffers are supported
if (shared && (sfglx_ext_SGIX_pbuffer == sfglx_LOAD_SUCCEEDED))
{
// There are no GLX versions prior to 1.0
int major = 0;
int minor = 0;
glXQueryVersion(m_display, &major, &minor);
// Check if glXCreatePbuffer is available (requires GLX 1.3 or greater)
bool hasCreatePbuffer = ((major > 1) || (minor >= 3));
if (hasCreatePbuffer)
{
// Get a GLXFBConfig that matches the visual
GLXFBConfig* config = NULL;
// We don't supply attributes to match against, since
// the visual we are matching against was already
// deemed suitable in selectBestVisual()
int nbConfigs = 0;
GLXFBConfig* configs = glXChooseFBConfig(m_display, DefaultScreen(m_display), NULL, &nbConfigs);
for (int i = 0; configs && (i < nbConfigs); ++i)
{
XVisualInfo* visual = glXGetVisualFromFBConfig(m_display, configs[i]);
if (!visual)
continue;
if (visual->visualid == visualInfo.visualid)
{
config = &configs[i];
break;
}
}
if (config)
{
int attributes[] =
{
GLX_PBUFFER_WIDTH, static_cast<int>(width),
GLX_PBUFFER_HEIGHT, static_cast<int>(height),
0, 0
};
m_pbuffer = glXCreatePbuffer(m_display, *config, attributes);
updateSettingsFromVisualInfo(&visualInfo);
XFree(configs);
return;
}
if (configs)
XFree(configs);
}
}
// If pbuffers are not available we use a hidden window as the off-screen surface to draw to
xcb_screen_t* screen = XCBScreenOfDisplay(m_connection, DefaultScreen(m_display));
// Define the window attributes
xcb_colormap_t colormap = xcb_generate_id(m_connection);
xcb_create_colormap(m_connection, XCB_COLORMAP_ALLOC_NONE, colormap, screen->root, visualInfo.visualid);
const uint32_t value_list[] = {colormap};
// Create a dummy window (disabled and hidden)
m_window = xcb_generate_id(m_connection);
xcb_create_window(
m_connection,
static_cast<uint8_t>(visualInfo.depth),
m_window,
screen->root,
0, 0,
width, height,
0,
XCB_WINDOW_CLASS_INPUT_OUTPUT,
visualInfo.visualid,
XCB_CW_COLORMAP,
value_list
);
m_ownsWindow = true;
updateSettingsFromWindow();
}
bool CStdGLCtx::Init(C4Window * pWindow, C4AbstractApp *)
{
// safety
if (!pGL) return false;
// store window
this->pWindow = pWindow;
Display * const dpy = gdk_x11_display_get_xdisplay(gdk_display_get_default());
InitGLXPointers();
if (!glXGetVisualFromFBConfig || !glXChooseFBConfig || !glXCreateNewContext)
{
return pGL->Error(" gl: Unable to retrieve GLX 1.4 entry points");
}
XVisualInfo *vis_info = glXGetVisualFromFBConfig(dpy, pWindow->Info);
// Create base context so we can initialize GLEW
GLXContext dummy_ctx = glXCreateContext(dpy, vis_info, 0, True);
XFree(vis_info);
glXMakeCurrent(dpy, pWindow->renderwnd, dummy_ctx);
glewExperimental = GL_TRUE;
GLenum err = glewInit();
if (err != GLEW_OK)
{
return pGL->Error((const char*)glewGetErrorString(err));
}
// Create Context with sharing (if this is the main context, our ctx will be 0, so no sharing)
const int attribs[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, REQUESTED_GL_CTX_MAJOR,
GLX_CONTEXT_MINOR_VERSION_ARB, REQUESTED_GL_CTX_MINOR,
GLX_CONTEXT_FLAGS_ARB, (Config.Graphics.DebugOpenGL ? GLX_CONTEXT_DEBUG_BIT_ARB : 0),
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_CORE_PROFILE_BIT_ARB,
None
};
GLXContext share_context = (pGL->pMainCtx != this) ? static_cast<GLXContext>(pGL->pMainCtx->ctx) : 0;
if (glXCreateContextAttribsARB)
{
int (*oldErrorHandler) (Display *, XErrorEvent *) = XSetErrorHandler(GLXErrorHandler);
ctx = glXCreateContextAttribsARB(dpy, pWindow->Info, share_context, True, attribs);
XSync(dpy, False);
XSetErrorHandler(oldErrorHandler);
}
if(!ctx) {
Log(" gl: falling back to attribute-less context creation.");
ctx = glXCreateNewContext(dpy, pWindow->Info, GLX_RGBA_TYPE, share_context, True);
}
glXMakeCurrent(dpy, None, NULL);
glXDestroyContext(dpy, dummy_ctx);
// No luck?
if (!ctx) return pGL->Error(" gl: Unable to create context");
if (!Select(true)) return pGL->Error(" gl: Unable to select context");
// init extensions
glewExperimental = GL_TRUE;
err = glewInit();
if (GLEW_OK != err)
{
// Problem: glewInit failed, something is seriously wrong.
return pGL->Error(reinterpret_cast<const char*>(glewGetErrorString(err)));
}
this_context = contexts.insert(contexts.end(), this);
return true;
}
static gboolean
gst_gl_context_glx_choose_format (GstGLContext * context, GError ** error)
{
GstGLContextGLX *context_glx;
GstGLWindow *window;
GstGLWindowX11 *window_x11;
gint error_base;
gint event_base;
Display *device;
context_glx = GST_GL_CONTEXT_GLX (context);
window = gst_gl_context_get_window (context);
window_x11 = GST_GL_WINDOW_X11 (window);
device = (Display *) gst_gl_display_get_handle (window->display);
if (!glXQueryExtension (device, &error_base, &event_base)) {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_RESOURCE_UNAVAILABLE, "No GLX extension");
goto failure;
}
if (!glXQueryVersion (device, &context_glx->priv->glx_major,
&context_glx->priv->glx_minor)) {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_CREATE_CONTEXT,
"Failed to query GLX version (glXQueryVersion failed)");
goto failure;
}
GST_INFO ("GLX Version: %d.%d", context_glx->priv->glx_major,
context_glx->priv->glx_minor);
/* legacy case */
if (context_glx->priv->glx_major < 1 || (context_glx->priv->glx_major == 1
&& context_glx->priv->glx_minor < 3)) {
gint attribs[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DEPTH_SIZE, 16,
GLX_DOUBLEBUFFER,
None
};
window_x11->visual_info = glXChooseVisual (device,
window_x11->screen_num, attribs);
if (!window_x11->visual_info) {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
"Bad attributes in glXChooseVisual");
goto failure;
}
} else {
gint attribs[] = {
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DEPTH_SIZE, 16,
GLX_DOUBLEBUFFER, True,
None
};
int fbcount;
context_glx->priv->fbconfigs = glXChooseFBConfig (device,
DefaultScreen (device), attribs, &fbcount);
if (!context_glx->priv->fbconfigs) {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
"Could not find any FBConfig's to use (check attributes?)");
goto failure;
}
_describe_fbconfig (device, context_glx->priv->fbconfigs[0]);
window_x11->visual_info = glXGetVisualFromFBConfig (device,
context_glx->priv->fbconfigs[0]);
if (!window_x11->visual_info) {
g_set_error (error, GST_GL_CONTEXT_ERROR,
GST_GL_CONTEXT_ERROR_WRONG_CONFIG, "Bad attributes in FBConfig");
goto failure;
}
}
gst_gl_window_x11_create_window ((GstGLWindowX11 *) window);
gst_object_unref (window);
return TRUE;
failure:
if (window)
gst_object_unref (window);
return FALSE;
}
static int glx_init(struct MPGLContext *ctx, int flags)
{
struct vo *vo = ctx->vo;
struct glx_context *glx_ctx = ctx->priv;
if (!vo_x11_init(ctx->vo))
goto uninit;
int glx_major, glx_minor;
if (!glXQueryVersion(vo->x11->display, &glx_major, &glx_minor)) {
MP_ERR(vo, "GLX not found.\n");
goto uninit;
}
// FBConfigs were added in GLX version 1.3.
if (MPGL_VER(glx_major, glx_minor) < MPGL_VER(1, 3)) {
MP_ERR(vo, "GLX version older than 1.3.\n");
goto uninit;
}
int glx_attribs[] = {
GLX_X_RENDERABLE, True,
GLX_X_VISUAL_TYPE, GLX_TRUE_COLOR,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_ALPHA_SIZE, 0,
GLX_DOUBLEBUFFER, True,
None
};
GLXFBConfig fbc = NULL;
if (flags & VOFLAG_ALPHA) {
set_glx_attrib(glx_attribs, GLX_ALPHA_SIZE, 1);
fbc = select_fb_config(vo, glx_attribs, flags);
if (!fbc) {
set_glx_attrib(glx_attribs, GLX_ALPHA_SIZE, 0);
flags &= ~VOFLAG_ALPHA;
}
}
if (!fbc)
fbc = select_fb_config(vo, glx_attribs, flags);
if (!fbc) {
MP_ERR(vo, "no GLX support present\n");
goto uninit;
}
MP_VERBOSE(vo, "GLX chose FB config with ID 0x%x\n", (int)(intptr_t)fbc);
glx_ctx->fbc = fbc;
glx_ctx->vinfo = glXGetVisualFromFBConfig(vo->x11->display, fbc);
if (glx_ctx->vinfo) {
MP_VERBOSE(vo, "GLX chose visual with ID 0x%x\n",
(int)glx_ctx->vinfo->visualid);
} else {
MP_WARN(vo, "Selected GLX FB config has no associated X visual\n");
}
if (!vo_x11_create_vo_window(vo, glx_ctx->vinfo, "gl"))
goto uninit;
bool success = false;
if (!(flags & VOFLAG_GLES)) {
for (int n = 0; mpgl_preferred_gl_versions[n]; n++) {
int version = mpgl_preferred_gl_versions[n];
MP_VERBOSE(vo, "Creating OpenGL %d.%d context...\n",
MPGL_VER_P(version));
if (version >= 300) {
success = create_context_x11_gl3(ctx, flags, version, false);
} else {
success = create_context_x11_old(ctx);
}
if (success)
break;
}
}
if (!success) // try ES
success = create_context_x11_gl3(ctx, flags, 200, true);
if (success && !glXIsDirect(vo->x11->display, glx_ctx->context))
ctx->gl->mpgl_caps |= MPGL_CAP_SW;
if (!success)
goto uninit;
return 0;
uninit:
glx_uninit(ctx);
return -1;
}
void GlxContext::createContext(GlxContext* shared, unsigned int bitsPerPixel, const ContextSettings& settings)
{
XVisualInfo* visualInfo = NULL;
// Save the creation settings
m_settings = settings;
// Get the context to share display lists with
GLXContext toShare = shared ? shared->m_context : NULL;
// Create the OpenGL context -- first try context versions >= 3.0 if it is requested (they require special code)
if (m_settings.majorVersion >= 3)
{
const GLubyte* name = reinterpret_cast<const GLubyte*>("glXCreateContextAttribsARB");
PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribsARB = reinterpret_cast<PFNGLXCREATECONTEXTATTRIBSARBPROC>(glXGetProcAddress(name));
if (glXCreateContextAttribsARB)
{
// Select a GLXFB config that matches the requested context settings
int nbConfigs = 0;
int fbAttributes[] =
{
GLX_DEPTH_SIZE, static_cast<int>(settings.depthBits),
GLX_STENCIL_SIZE, static_cast<int>(settings.stencilBits),
GLX_SAMPLE_BUFFERS, settings.antialiasingLevel > 0,
GLX_SAMPLES, static_cast<int>(settings.antialiasingLevel),
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_ALPHA_SIZE, bitsPerPixel == 32 ? 8 : 0,
GLX_DOUBLEBUFFER, True,
GLX_X_RENDERABLE, True,
GLX_DRAWABLE_TYPE, GLX_WINDOW_BIT,
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_CONFIG_CAVEAT, GLX_NONE,
None
};
GLXFBConfig* configs = glXChooseFBConfig(m_display, DefaultScreen(m_display), fbAttributes, &nbConfigs);
if (configs && nbConfigs)
{
while (!m_context && (m_settings.majorVersion >= 3))
{
// Create the context
int attributes[] =
{
GLX_CONTEXT_MAJOR_VERSION_ARB, static_cast<int>(m_settings.majorVersion),
GLX_CONTEXT_MINOR_VERSION_ARB, static_cast<int>(m_settings.minorVersion),
GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
0, 0
};
m_context = glXCreateContextAttribsARB(m_display, configs[0], toShare, true, attributes);
if (m_context)
{
// Ok: retrieve the config's visual
visualInfo = glXGetVisualFromFBConfig(m_display, configs[0]);
}
else
{
// If we couldn't create the context, lower the version number and try again -- stop at 3.0
// Invalid version numbers will be generated by this algorithm (like 3.9), but we really don't care
if (m_settings.minorVersion > 0)
{
// If the minor version is not 0, we decrease it and try again
m_settings.minorVersion--;
}
else
{
// If the minor version is 0, we decrease the major version
m_settings.majorVersion--;
m_settings.minorVersion = 9;
}
}
}
XFree(configs);
}
}
}
// If the OpenGL >= 3.0 context failed or if we don't want one, create a regular OpenGL 1.x/2.x context
if (!m_context)
{
// set the context version to 2.0 (arbitrary)
m_settings.majorVersion = 2;
m_settings.minorVersion = 0;
// Retrieve the attributes of the target window
XWindowAttributes windowAttributes;
if (XGetWindowAttributes(m_display, m_window, &windowAttributes) == 0)
{
err() << "Failed to get the window attributes" << std::endl;
return;
}
// Get its visual
XVisualInfo tpl;
tpl.screen = DefaultScreen(m_display);
tpl.visualid = XVisualIDFromVisual(windowAttributes.visual);
int nbVisuals = 0;
visualInfo = XGetVisualInfo(m_display, VisualIDMask | VisualScreenMask, &tpl, &nbVisuals);
// Create the context, using the target window's visual
m_context = glXCreateContext(m_display, visualInfo, toShare, true);
if (!m_context)
{
err() << "Failed to create an OpenGL context for this window" << std::endl;
return;
}
}
// Update the creation settings from the chosen format
int depth, stencil, multiSampling, samples;
glXGetConfig(m_display, visualInfo, GLX_DEPTH_SIZE, &depth);
glXGetConfig(m_display, visualInfo, GLX_STENCIL_SIZE, &stencil);
glXGetConfig(m_display, visualInfo, GLX_SAMPLE_BUFFERS_ARB, &multiSampling);
glXGetConfig(m_display, visualInfo, GLX_SAMPLES_ARB, &samples);
m_settings.depthBits = static_cast<unsigned int>(depth);
m_settings.stencilBits = static_cast<unsigned int>(stencil);
m_settings.antialiasingLevel = multiSampling ? samples : 0;
// Free the visual info
XFree(visualInfo);
}
void __plg_openWindow() {
int n, i;
XVisualInfo* visual_info;
GLXFBConfig fb_config, *fb_configs;
XSetWindowAttributes x_attrs;
plgCurrentDisplay = XOpenDisplay(0);
/* Choose X11 FB Config + Visual */
fb_configs = glXChooseFBConfig(
plgCurrentDisplay,
DefaultScreen(plgCurrentDisplay),
kPLGOpenGLAttrs,
&n
);
//visual_info = glXChooseVisual(
// plgCurrentDisplay,
// DefaultScreen(plgCurrentDisplay),
// kPLGX11Attrs
//);
for (i = 0; i < n; i++) {
visual_info = glXGetVisualFromFBConfig(plgCurrentDisplay, fb_configs[i]);
fb_config = fb_configs[i];
// FIXPAUL choose best
if (visual_info) {
break;
}
}
assert(visual_info);
printf("visual: 0x%x\n", visual_info->visualid);
/* Setup X11 window attributes */
x_attrs.event_mask = StructureNotifyMask;
x_attrs.border_pixel = 0;
x_attrs.background_pixmap = None;
x_attrs.colormap = XCreateColormap(
plgCurrentDisplay,
RootWindow(plgCurrentDisplay, visual_info->screen),
visual_info->visual,
AllocNone
);
/* Open X11 Window */
plgCurrentWindow = XCreateWindow(
plgCurrentDisplay,
RootWindow(plgCurrentDisplay, visual_info->screen),
0,
0,
1440,
900,
0,
visual_info->depth,
InputOutput,
visual_info->visual,
CWBorderPixel|CWColormap|CWEventMask,
&x_attrs
);
XMapWindow(plgCurrentDisplay, plgCurrentWindow);
/* Receive create context function pointer */
glXCreateContextAttribsARBProc glXCreateContextAttribsARB = (glXCreateContextAttribsARBProc) glXGetProcAddressARB((const GLubyte *) "glXCreateContextAttribsARB");
/* Create OpenGL Context */
plgCurrentGLContext = glXCreateContextAttribsARB(
plgCurrentDisplay,
fb_config,
NULL,
true,
kPLGOpenGLAttrs
);
glXMakeCurrent(
plgCurrentDisplay,
plgCurrentWindow,
plgCurrentGLContext
);
}
bool gl_platform_init_swapchain(struct gs_swap_chain *swap)
{
Display *display = swap->wi->display;
struct gl_windowinfo *info = swap->wi;
struct gl_platform *plat = swap->device->plat;
XVisualInfo *vi = 0;
Colormap cmap = 0;
XSetWindowAttributes swa;
XWindowAttributes attrs;
XErrorHandler phandler = XSetErrorHandler(err_handler);
gl_platform_cleanup_swapchain(swap);
if (!XGetWindowAttributes(display, info->id, &attrs)) {
blog(LOG_ERROR, "Failed getting window attributes");
goto fail;
}
vi = glXGetVisualFromFBConfig(display, plat->fbcfg);
if (handle_x_error(display, "Failed to get visual from fb config."))
goto fail;
cmap = XCreateColormap(display, info->id, vi->visual, AllocNone);
if (handle_x_error(display, "Failed creating colormap"))
goto fail;
swa.colormap = cmap;
swa.border_pixel = 0;
info->int_id = XCreateWindow(display, info->id, 0, 0,
attrs.width, attrs.height,
0, 24, InputOutput, vi->visual,
CWBorderPixel|CWColormap, &swa);
XMapWindow(display, info->int_id);
if (handle_x_error(display, "Failed creating intermediate X window"))
goto fail;
info->glxid = glXCreateWindow(display, plat->fbcfg, info->int_id, 0);
if (handle_x_error(display, "Failed creating intermediate GLX window"))
goto fail;
XFreeColormap(display, cmap);
XFree(vi);
return true;
fail:
gl_platform_cleanup_swapchain(swap);
if (cmap)
XFreeColormap(display, cmap);
if (vi)
XFree(vi);
XSetErrorHandler(phandler);
return false;
}
void X11OpenGLWindow::createWindow(const b3gWindowConstructionInfo& ci)
{
m_data->m_dpy = MyXOpenDisplay(NULL);
m_data->m_glWidth = ci.m_width;
m_data->m_glHeight = ci.m_height;
if(m_data->m_dpy == NULL) {
printf("\n\tcannot connect to X server\n\n");
exit(0);
}
m_data->m_root = DefaultRootWindow(m_data->m_dpy);
#ifdef GLEW_DYNAMIC_LOAD_ALL_GLX_FUNCTIONS
GLboolean res = glewXInit();
if (res==0)
{
printf("glewXInit OK\n");
} else
{
printf("glewXInit failed, exit\n");
exit(0);
}
#endif //GLEW_DYNAMIC_LOAD_ALL_GLX_FUNCTIONS
if (ci.m_openglVersion < 3)
{
forceOpenGL3 = false;
}
if (forceOpenGL3)
{
int glxMinor, glxMajor;
if (!glXQueryVersion(m_data->m_dpy,&glxMajor,&glxMinor) || (((glxMajor==1)&&(glxMinor<3)) || (glxMajor<1)))
{
printf("Invalid GLX version: major %d, minor %d\n",glxMajor,glxMinor);
exit(0);
}
static int visual_attribs[] =
{
GLX_X_RENDERABLE , True,
GLX_DRAWABLE_TYPE , GLX_WINDOW_BIT,
GLX_RENDER_TYPE , GLX_RGBA_BIT,
GLX_X_VISUAL_TYPE , GLX_TRUE_COLOR,
GLX_RED_SIZE , 8,
GLX_GREEN_SIZE , 8,
GLX_BLUE_SIZE , 8,
GLX_ALPHA_SIZE , 8,
GLX_DEPTH_SIZE , 24,
GLX_STENCIL_SIZE , 8,
GLX_DOUBLEBUFFER , True,
None
};
int fbcount;
GLXFBConfig* fbc = glXChooseFBConfig(m_data->m_dpy, DefaultScreen(m_data->m_dpy), visual_attribs, &fbcount);
if (!fbc)
{
printf( "Failed to retrieve a framebuffer config\n" );
exit(1);
}
///don't use highest samples, it is really slow on some NVIDIA Quadro cards
#ifdef USE_HIGHEST_SAMPLES
int best_fbc = -1, worst_fbc = -1, best_num_samp = -1, worst_num_samp = 999;
int i;
for (i=0; i<fbcount; ++i)
{
XVisualInfo *vi = glXGetVisualFromFBConfig( m_data->m_dpy, fbc[i] );
if ( vi )
{
int samp_buf, samples;
glXGetFBConfigAttrib( m_data->m_dpy, fbc[i], GLX_SAMPLE_BUFFERS, &samp_buf );
glXGetFBConfigAttrib( m_data->m_dpy, fbc[i], GLX_SAMPLES , &samples );
//printf( " Matching fbconfig %d, visual ID 0x%2x: SAMPLE_BUFFERS = %d,"
// " SAMPLES = %d\n",
// i, vi -> visualid, samp_buf, samples );
if ( best_fbc < 0 || (samp_buf && (samples > best_num_samp)) )
best_fbc = i, best_num_samp = samples;
if ( worst_fbc < 0 || (!samp_buf || (samples < worst_num_samp)) )
worst_fbc = i, worst_num_samp = samples;
}
MyXFree( vi );
}
m_data->m_bestFbc = fbc[ best_fbc ];
#else
m_data->m_bestFbc = *fbc;
#endif
// Be sure to free the FBConfig list allocated by glXChooseFBConfig()
MyXFree( fbc );
m_data->m_vi = glXGetVisualFromFBConfig( m_data->m_dpy, m_data->m_bestFbc );
m_data->m_swa.colormap = m_data->m_cmap = MyXCreateColormap( m_data->m_dpy,
RootWindow( m_data->m_dpy, m_data->m_vi->screen ),
m_data->m_vi->visual, AllocNone );
m_data->m_swa.background_pixmap = None ;
m_data->m_swa.border_pixel = 0;
m_data->m_swa.event_mask = ExposureMask | KeyReleaseMask | KeyPressMask |ButtonPressMask | ButtonReleaseMask |PointerMotionMask|StructureNotifyMask;
;
m_data->m_root = RootWindow( m_data->m_dpy, m_data->m_vi->screen );
m_data->m_win = MyXCreateWindow( m_data->m_dpy, m_data->m_root,
0, 0, ci.m_width, ci.m_height, 0, m_data->m_vi->depth, InputOutput,
m_data->m_vi->visual,
CWBorderPixel|CWColormap|CWEventMask, &m_data->m_swa );
//m_data->m_win = m_data->m_x11_XCreateWindow(m_data->m_dpy, m_data->m_root, 0, 0, ci.m_width, ci.m_height, 0, m_data->m_vi->depth, InputOutput, m_data->m_vi->visual, CWColormap | CWEventMask, &m_data->m_swa);
if (!m_data->m_win)
{
printf("Cannot create window\n");
exit(0);
}
MyXMapWindow(m_data->m_dpy, m_data->m_win);
MyXStoreName(m_data->m_dpy, m_data->m_win, "OpenGL3 Window");
} else
{
m_data->m_vi = glXChooseVisual(m_data->m_dpy, 0, att);
printf("4\n");
if(m_data->m_vi == NULL) {
printf("\n\tno appropriate visual found\n\n");
exit(0);
}
else {
printf("\n\tvisual %p selected\n", (void *)m_data->m_vi->visualid); /* %p creates hexadecimal output like in glxinfo */
}
m_data->m_cmap = MyXCreateColormap(m_data->m_dpy, m_data->m_root, m_data->m_vi->visual, AllocNone);
m_data->m_swa.colormap = m_data->m_cmap;
m_data->m_swa.event_mask = ExposureMask | KeyReleaseMask | KeyPressMask |ButtonPressMask | ButtonReleaseMask |PointerMotionMask|StructureNotifyMask;
m_data->m_win = MyXCreateWindow(m_data->m_dpy, m_data->m_root, 0, 0, ci.m_width, ci.m_height, 0, m_data->m_vi->depth, InputOutput, m_data->m_vi->visual, CWColormap | CWEventMask, &m_data->m_swa);
MyXMapWindow(m_data->m_dpy, m_data->m_win);
MyXStoreName(m_data->m_dpy, m_data->m_win, "OpenGL2 Window");
}
enableOpenGL();
}
/*
* General settings query method
*/
int FGAPIENTRY glutGet( GLenum eWhat )
{
#if TARGET_HOST_MS_WINDOWS
int returnValue ;
GLboolean boolValue ;
#endif
int nsamples = 0;
switch (eWhat)
{
case GLUT_INIT_STATE:
return fgState.Initialised;
case GLUT_ELAPSED_TIME:
return fgElapsedTime();
}
FREEGLUT_EXIT_IF_NOT_INITIALISED ( "glutGet" );
/* XXX In chronological code add order. (WHY in that order?) */
switch( eWhat )
{
/* Following values are stored in fgState and fgDisplay global structures */
case GLUT_SCREEN_WIDTH: return fgDisplay.ScreenWidth ;
case GLUT_SCREEN_HEIGHT: return fgDisplay.ScreenHeight ;
case GLUT_SCREEN_WIDTH_MM: return fgDisplay.ScreenWidthMM ;
case GLUT_SCREEN_HEIGHT_MM: return fgDisplay.ScreenHeightMM;
case GLUT_INIT_WINDOW_X: return fgState.Position.Use ?
fgState.Position.X : -1 ;
case GLUT_INIT_WINDOW_Y: return fgState.Position.Use ?
fgState.Position.Y : -1 ;
case GLUT_INIT_WINDOW_WIDTH: return fgState.Size.Use ?
fgState.Size.X : -1 ;
case GLUT_INIT_WINDOW_HEIGHT: return fgState.Size.Use ?
fgState.Size.Y : -1 ;
case GLUT_INIT_DISPLAY_MODE: return fgState.DisplayMode ;
case GLUT_INIT_MAJOR_VERSION: return fgState.MajorVersion ;
case GLUT_INIT_MINOR_VERSION: return fgState.MinorVersion ;
case GLUT_INIT_FLAGS: return fgState.ContextFlags ;
case GLUT_INIT_PROFILE: return fgState.ContextProfile ;
#if TARGET_HOST_POSIX_X11
/*
* The window/context specific queries are handled mostly by
* fghGetConfig().
*/
case GLUT_WINDOW_NUM_SAMPLES:
#ifdef GLX_VERSION_1_3
glGetIntegerv(GL_SAMPLES, &nsamples);
#endif
return nsamples;
/*
* The rest of GLX queries under X are general enough to use a macro to
* check them
*/
# define GLX_QUERY(a,b) case a: return fghGetConfig( b );
GLX_QUERY( GLUT_WINDOW_RGBA, GLX_RGBA );
GLX_QUERY( GLUT_WINDOW_DOUBLEBUFFER, GLX_DOUBLEBUFFER );
GLX_QUERY( GLUT_WINDOW_BUFFER_SIZE, GLX_BUFFER_SIZE );
GLX_QUERY( GLUT_WINDOW_STENCIL_SIZE, GLX_STENCIL_SIZE );
GLX_QUERY( GLUT_WINDOW_DEPTH_SIZE, GLX_DEPTH_SIZE );
GLX_QUERY( GLUT_WINDOW_RED_SIZE, GLX_RED_SIZE );
GLX_QUERY( GLUT_WINDOW_GREEN_SIZE, GLX_GREEN_SIZE );
GLX_QUERY( GLUT_WINDOW_BLUE_SIZE, GLX_BLUE_SIZE );
GLX_QUERY( GLUT_WINDOW_ALPHA_SIZE, GLX_ALPHA_SIZE );
GLX_QUERY( GLUT_WINDOW_ACCUM_RED_SIZE, GLX_ACCUM_RED_SIZE );
GLX_QUERY( GLUT_WINDOW_ACCUM_GREEN_SIZE, GLX_ACCUM_GREEN_SIZE );
GLX_QUERY( GLUT_WINDOW_ACCUM_BLUE_SIZE, GLX_ACCUM_BLUE_SIZE );
GLX_QUERY( GLUT_WINDOW_ACCUM_ALPHA_SIZE, GLX_ACCUM_ALPHA_SIZE );
GLX_QUERY( GLUT_WINDOW_STEREO, GLX_STEREO );
# undef GLX_QUERY
/* Colormap size is handled in a bit different way than all the rest */
case GLUT_WINDOW_COLORMAP_SIZE:
if( (fghGetConfig( GLX_RGBA )) || (fgStructure.CurrentWindow == NULL) )
{
/*
* We've got a RGBA visual, so there is no colormap at all.
* The other possibility is that we have no current window set.
*/
return 0;
}
else
{
const GLXFBConfig * fbconfig =
fgStructure.CurrentWindow->Window.FBConfig;
XVisualInfo * visualInfo =
glXGetVisualFromFBConfig( fgDisplay.Display, *fbconfig );
const int result = visualInfo->visual->map_entries;
XFree(visualInfo);
return result;
}
/*
* Those calls are somewhat similiar, as they use XGetWindowAttributes()
* function
*/
case GLUT_WINDOW_X:
case GLUT_WINDOW_Y:
case GLUT_WINDOW_BORDER_WIDTH:
case GLUT_WINDOW_HEADER_HEIGHT:
{
int x, y;
Window w;
if( fgStructure.CurrentWindow == NULL )
return 0;
XTranslateCoordinates(
fgDisplay.Display,
fgStructure.CurrentWindow->Window.Handle,
fgDisplay.RootWindow,
0, 0, &x, &y, &w);
switch ( eWhat )
{
case GLUT_WINDOW_X: return x;
case GLUT_WINDOW_Y: return y;
}
if ( w == 0 )
return 0;
XTranslateCoordinates(
fgDisplay.Display,
fgStructure.CurrentWindow->Window.Handle,
w, 0, 0, &x, &y, &w);
switch ( eWhat )
{
case GLUT_WINDOW_BORDER_WIDTH: return x;
case GLUT_WINDOW_HEADER_HEIGHT: return y;
}
}
case GLUT_WINDOW_WIDTH:
case GLUT_WINDOW_HEIGHT:
{
XWindowAttributes winAttributes;
if( fgStructure.CurrentWindow == NULL )
return 0;
XGetWindowAttributes(
fgDisplay.Display,
fgStructure.CurrentWindow->Window.Handle,
&winAttributes
);
switch ( eWhat )
{
case GLUT_WINDOW_WIDTH: return winAttributes.width ;
case GLUT_WINDOW_HEIGHT: return winAttributes.height ;
}
}
/* I do not know yet if there will be a fgChooseVisual() function for Win32 */
case GLUT_DISPLAY_MODE_POSSIBLE:
{
/* We should not have to call fgChooseFBConfig again here. */
GLXFBConfig * fbconfig;
int isPossible;
fbconfig = fgChooseFBConfig();
if (fbconfig == NULL)
{
isPossible = 0;
}
else
{
isPossible = 1;
XFree(fbconfig);
}
return isPossible;
}
/* This is system-dependant */
case GLUT_WINDOW_FORMAT_ID:
if( fgStructure.CurrentWindow == NULL )
return 0;
return fghGetConfig( GLX_VISUAL_ID );
#elif TARGET_HOST_MS_WINDOWS
case GLUT_WINDOW_NUM_SAMPLES:
glGetIntegerv(WGL_SAMPLES_ARB, &nsamples);
return nsamples;
/* Handle the OpenGL inquiries */
case GLUT_WINDOW_RGBA:
#if defined(_WIN32_WCE)
boolValue = (GLboolean)0; /* WinCE doesn't support this feature */
#else
glGetBooleanv ( GL_RGBA_MODE, &boolValue );
returnValue = boolValue ? 1 : 0;
#endif
return returnValue;
case GLUT_WINDOW_DOUBLEBUFFER:
#if defined(_WIN32_WCE)
boolValue = (GLboolean)0; /* WinCE doesn't support this feature */
#else
glGetBooleanv ( GL_DOUBLEBUFFER, &boolValue );
returnValue = boolValue ? 1 : 0;
#endif
return returnValue;
case GLUT_WINDOW_STEREO:
#if defined(_WIN32_WCE)
boolValue = (GLboolean)0; /* WinCE doesn't support this feature */
#else
glGetBooleanv ( GL_STEREO, &boolValue );
returnValue = boolValue ? 1 : 0;
#endif
return returnValue;
case GLUT_WINDOW_RED_SIZE:
glGetIntegerv ( GL_RED_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_GREEN_SIZE:
glGetIntegerv ( GL_GREEN_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_BLUE_SIZE:
glGetIntegerv ( GL_BLUE_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_ALPHA_SIZE:
glGetIntegerv ( GL_ALPHA_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_ACCUM_RED_SIZE:
#if defined(_WIN32_WCE)
returnValue = 0; /* WinCE doesn't support this feature */
#else
glGetIntegerv ( GL_ACCUM_RED_BITS, &returnValue );
#endif
return returnValue;
case GLUT_WINDOW_ACCUM_GREEN_SIZE:
#if defined(_WIN32_WCE)
returnValue = 0; /* WinCE doesn't support this feature */
#else
glGetIntegerv ( GL_ACCUM_GREEN_BITS, &returnValue );
#endif
return returnValue;
case GLUT_WINDOW_ACCUM_BLUE_SIZE:
#if defined(_WIN32_WCE)
returnValue = 0; /* WinCE doesn't support this feature */
#else
glGetIntegerv ( GL_ACCUM_BLUE_BITS, &returnValue );
#endif
return returnValue;
case GLUT_WINDOW_ACCUM_ALPHA_SIZE:
#if defined(_WIN32_WCE)
returnValue = 0; /* WinCE doesn't support this feature */
#else
glGetIntegerv ( GL_ACCUM_ALPHA_BITS, &returnValue );
#endif
return returnValue;
case GLUT_WINDOW_DEPTH_SIZE:
glGetIntegerv ( GL_DEPTH_BITS, &returnValue );
return returnValue;
case GLUT_WINDOW_BUFFER_SIZE:
returnValue = 1 ; /* ????? */
return returnValue;
case GLUT_WINDOW_STENCIL_SIZE:
returnValue = 0 ; /* ????? */
return returnValue;
case GLUT_WINDOW_X:
case GLUT_WINDOW_Y:
case GLUT_WINDOW_WIDTH:
case GLUT_WINDOW_HEIGHT:
{
/*
* There is considerable confusion about the "right thing to
* do" concerning window size and position. GLUT itself is
* not consistent between Windows and UNIX/X11; since
* platform independence is a virtue for "freeglut", we
* decided to break with GLUT's behaviour.
*
* Under UNIX/X11, it is apparently not possible to get the
* window border sizes in order to subtract them off the
* window's initial position until some time after the window
* has been created. Therefore we decided on the following
* behaviour, both under Windows and under UNIX/X11:
* - When you create a window with position (x,y) and size
* (w,h), the upper left hand corner of the outside of the
* window is at (x,y) and the size of the drawable area is
* (w,h).
* - When you query the size and position of the window--as
* is happening here for Windows--"freeglut" will return
* the size of the drawable area--the (w,h) that you
* specified when you created the window--and the coordinates
* of the upper left hand corner of the drawable
* area--which is NOT the (x,y) you specified.
*/
RECT winRect;
freeglut_return_val_if_fail( fgStructure.CurrentWindow != NULL, 0 );
/*
* We need to call GetWindowRect() first...
* (this returns the pixel coordinates of the outside of the window)
*/
GetWindowRect( fgStructure.CurrentWindow->Window.Handle, &winRect );
/* ...then we've got to correct the results we've just received... */
#if !defined(_WIN32_WCE)
if ( ( fgStructure.GameModeWindow != fgStructure.CurrentWindow ) && ( fgStructure.CurrentWindow->Parent == NULL ) &&
( ! fgStructure.CurrentWindow->IsMenu ) )
{
winRect.left += GetSystemMetrics( SM_CXSIZEFRAME );
winRect.right -= GetSystemMetrics( SM_CXSIZEFRAME );
winRect.top += GetSystemMetrics( SM_CYSIZEFRAME ) + GetSystemMetrics( SM_CYCAPTION );
winRect.bottom -= GetSystemMetrics( SM_CYSIZEFRAME );
}
#endif /* !defined(_WIN32_WCE) */
switch( eWhat )
{
case GLUT_WINDOW_X: return winRect.left ;
case GLUT_WINDOW_Y: return winRect.top ;
case GLUT_WINDOW_WIDTH: return winRect.right - winRect.left;
case GLUT_WINDOW_HEIGHT: return winRect.bottom - winRect.top;
}
}
break;
case GLUT_WINDOW_BORDER_WIDTH :
#if defined(_WIN32_WCE)
return 0;
#else
return GetSystemMetrics( SM_CXSIZEFRAME );
#endif /* !defined(_WIN32_WCE) */
case GLUT_WINDOW_HEADER_HEIGHT :
#if defined(_WIN32_WCE)
return 0;
#else
return GetSystemMetrics( SM_CYCAPTION );
#endif /* defined(_WIN32_WCE) */
case GLUT_DISPLAY_MODE_POSSIBLE:
#if defined(_WIN32_WCE)
return 0;
#else
return fgSetupPixelFormat( fgStructure.CurrentWindow, GL_TRUE,
PFD_MAIN_PLANE );
#endif /* defined(_WIN32_WCE) */
case GLUT_WINDOW_FORMAT_ID:
#if !defined(_WIN32_WCE)
if( fgStructure.CurrentWindow != NULL )
return GetPixelFormat( fgStructure.CurrentWindow->Window.Device );
#endif /* defined(_WIN32_WCE) */
return 0;
#endif
/* The window structure queries */
case GLUT_WINDOW_PARENT:
if( fgStructure.CurrentWindow == NULL ) return 0;
if( fgStructure.CurrentWindow->Parent == NULL ) return 0;
return fgStructure.CurrentWindow->Parent->ID;
case GLUT_WINDOW_NUM_CHILDREN:
if( fgStructure.CurrentWindow == NULL )
return 0;
return fgListLength( &fgStructure.CurrentWindow->Children );
case GLUT_WINDOW_CURSOR:
if( fgStructure.CurrentWindow == NULL )
return 0;
return fgStructure.CurrentWindow->State.Cursor;
case GLUT_MENU_NUM_ITEMS:
if( fgStructure.CurrentMenu == NULL )
return 0;
return fgListLength( &fgStructure.CurrentMenu->Entries );
case GLUT_ACTION_ON_WINDOW_CLOSE:
return fgState.ActionOnWindowClose;
case GLUT_VERSION :
return VERSION_MAJOR * 10000 + VERSION_MINOR * 100 + VERSION_PATCH;
case GLUT_RENDERING_CONTEXT:
return fgState.UseCurrentContext ? GLUT_USE_CURRENT_CONTEXT
: GLUT_CREATE_NEW_CONTEXT;
case GLUT_DIRECT_RENDERING:
return fgState.DirectContext;
case GLUT_FULL_SCREEN:
return fghCheckFullScreen();
case GLUT_AUX:
return fgState.AuxiliaryBufferNumber;
case GLUT_MULTISAMPLE:
return fgState.SampleNumber;
default:
fgWarning( "glutGet(): missing enum handle %d", eWhat );
break;
}
return -1;
}
/**
* Creates a Pixmap and GLXPixmap with tex_data as the contents.
*/
static GLXPixmap
create_pixmap(GLenum format)
{
static const int rgb_fb_config_attribs[] = {
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_ALPHA_SIZE, 0,
GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT,
GLX_BIND_TO_TEXTURE_RGB_EXT, 1,
None
};
static const int rgba_fb_config_attribs[] = {
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_ALPHA_SIZE, 8,
GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT,
GLX_BIND_TO_TEXTURE_RGBA_EXT, 1,
None
};
static const int rgb_pixmap_attribs[] = {
GLX_TEXTURE_TARGET_EXT, GLX_TEXTURE_2D_EXT,
GLX_TEXTURE_FORMAT_EXT, GLX_TEXTURE_FORMAT_RGB_EXT,
None
};
static const int rgba_pixmap_attribs[] = {
GLX_TEXTURE_TARGET_EXT, GLX_TEXTURE_2D_EXT,
GLX_TEXTURE_FORMAT_EXT, GLX_TEXTURE_FORMAT_RGBA_EXT,
None
};
static const int *fb_config_attribs, *pixmap_attribs;
GLXFBConfig *fb_configs;
GLXFBConfig fb_config;
int n_fb_configs;
Pixmap pixmap;
GLXPixmap glx_pixmap;
XVisualInfo *vis;
XRenderPictFormat *render_format;
Picture picture;
if (format == GL_RGBA) {
fb_config_attribs = rgba_fb_config_attribs;
pixmap_attribs = rgba_pixmap_attribs;
render_format = XRenderFindStandardFormat(dpy,
PictStandardARGB32);
} else {
fb_config_attribs = rgb_fb_config_attribs;
pixmap_attribs = rgb_pixmap_attribs;
render_format = XRenderFindStandardFormat(dpy,
PictStandardRGB24);
}
fb_configs = glXChooseFBConfig(dpy, DefaultScreen(dpy),
fb_config_attribs,
&n_fb_configs);
if (fb_configs == NULL || n_fb_configs < 1) {
fprintf(stderr, "No %s TFP FB config found\n",
format == GL_RGBA ? "RGBA" : "RGB");
return None;
}
fb_config = fb_configs[n_fb_configs - 1];
pixmap = XCreatePixmap(dpy, RootWindow(dpy, DefaultScreen(dpy)),
2, 2, render_format->depth);
picture = XRenderCreatePicture(dpy, pixmap, render_format, 0, NULL);
glx_pixmap = glXCreatePixmap(dpy, fb_config, pixmap, pixmap_attribs);
vis = glXGetVisualFromFBConfig(dpy, fb_config);
set_pixel(dpy, picture, 0, 0, tex_data[0]);
set_pixel(dpy, picture, 1, 0, tex_data[1]);
set_pixel(dpy, picture, 0, 1, tex_data[2]);
set_pixel(dpy, picture, 1, 1, tex_data[3]);
XFree(fb_configs);
XFree(vis);
return glx_pixmap;
}
int main(int argc, char* argv[]) {
Display *display = XOpenDisplay(NULL);
if (!display)
fail("Failed to open X display\n");
checkGlxVersion(display);
auto bestFbc = chooseFBConfig(display);
// Get a visual
XVisualInfo *vi = glXGetVisualFromFBConfig(display, bestFbc);
printf("Chosen visual ID = 0x%lx\n", vi->visualid);
printf("Creating colormap\n");
XSetWindowAttributes swa;
Colormap cmap;
swa.colormap = cmap = XCreateColormap(display,
RootWindow(display, vi->screen),
vi->visual, AllocNone);
swa.background_pixmap = None ;
swa.border_pixel = 0;
swa.event_mask = StructureNotifyMask;
printf("Creating window\n");
Window win = XCreateWindow(display, RootWindow(display, vi->screen),
0, 0, 100, 100, 0, vi->depth, InputOutput,
vi->visual,
CWBorderPixel|CWColormap|CWEventMask, &swa);
if (!win)
fail("Failed to create window.\n");
// Done with the visual info data
XFree(vi);
XStoreName(display, win, "GL 3.0 Window");
printf("Mapping window\n");
XMapWindow(display, win);
auto context = createContext(display, bestFbc);
printf("Making context current\n");
glXMakeCurrent(display, win, context);
initGlew();
GLuint tex_;
GLuint fbo_;
glGenTextures(1, &tex_);
glBindTexture(GL_TEXTURE_2D, tex_);
glGenFramebuffers(1, &fbo_);
glBindFramebuffer(GL_FRAMEBUFFER, fbo_);
glFramebufferTexture2D(GL_FRAMEBUFFER,
GL_COLOR_ATTACHMENT0,
GL_TEXTURE_2D,
tex_,
0);
printGlErrors();
glBindTexture(GL_TEXTURE_2D, tex_);
glTexStorage2D(GL_TEXTURE_2D, 2, GL_RGBA8, 2, 2);
char source_pixels[16] = {
1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4, 1, 2, 3, 4
};
printGlErrors();
printf("Crash here\n");
glTexSubImage2D(GL_TEXTURE_2D,
0,
0, 0,
2, 2,
GL_RGBA, GL_UNSIGNED_BYTE,
source_pixels);
printf("Crashed :( \n");
printGlErrors();
glCheckFramebufferStatus(GL_FRAMEBUFFER);
char pixels[16] = {0};
glReadPixels(0, 0, 2, 2, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
glCheckFramebufferStatus(GL_FRAMEBUFFER);
printGlErrors();
glXMakeCurrent(display, 0, 0);
glXDestroyContext(display, context);
XDestroyWindow(display, win);
XFreeColormap(display, cmap);
XCloseDisplay(display);
printf("Test success\n");
return 0;
}
C4Window* C4Window::Init(WindowKind windowKind, C4AbstractApp * pApp, const char * Title, const C4Rect * size)
{
Active = true;
#ifdef GDK_WINDOWING_X11
if(!FindFBConfig(Config.Graphics.MultiSampling, &Info))
{
// Disable multisampling if we don't find a visual which
// supports the currently configured setting.
if(!FindFBConfig(0, &Info)) return NULL;
Config.Graphics.MultiSampling = 0;
}
#endif
assert(!window);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
if (windowKind == W_Viewport)
{
C4ViewportWindow * vw = static_cast<C4ViewportWindow *>(this);
// Cannot just use ScrolledWindow because this would just move
// the GdkWindow of the DrawingArea.
GtkWidget* table = gtk_grid_new();
render_widget = gtk_drawing_area_new();
gtk_widget_set_hexpand(GTK_WIDGET(render_widget), true);
gtk_widget_set_vexpand(GTK_WIDGET(render_widget), true);
gtk_grid_attach(GTK_GRID(table), GTK_WIDGET(render_widget), 0, 0, 1, 1);
vw->h_scrollbar = gtk_scrollbar_new(GTK_ORIENTATION_HORIZONTAL, NULL);
gtk_grid_attach(GTK_GRID(table), vw->h_scrollbar, 0, 1, 1, 1);
vw->v_scrollbar = gtk_scrollbar_new(GTK_ORIENTATION_VERTICAL, NULL);
gtk_grid_attach(GTK_GRID(table), vw->v_scrollbar, 1, 0, 1, 1);
GtkAdjustment* adjustment = gtk_range_get_adjustment(GTK_RANGE(vw->h_scrollbar));
g_signal_connect(
G_OBJECT(adjustment),
"value-changed",
G_CALLBACK(OnHScrollStatic),
this
);
adjustment = gtk_range_get_adjustment(GTK_RANGE(vw->v_scrollbar));
g_signal_connect(
G_OBJECT(adjustment),
"value-changed",
G_CALLBACK(OnVScrollStatic),
this
);
gtk_container_add(GTK_CONTAINER(window), table);
gtk_widget_add_events(GTK_WIDGET(window), GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_STRUCTURE_MASK | GDK_POINTER_MOTION_MASK);
gtk_drag_dest_set(GTK_WIDGET(render_widget), GTK_DEST_DEFAULT_ALL, drag_drop_entries, 1, GDK_ACTION_COPY);
g_signal_connect(G_OBJECT(render_widget), "drag-data-received", G_CALLBACK(OnDragDataReceivedStatic), this);
g_signal_connect(G_OBJECT(render_widget), "draw", G_CALLBACK(OnExposeStatic), this);
g_signal_connect(G_OBJECT(window), "key-press-event", G_CALLBACK(OnKeyPressStatic), this);
g_signal_connect(G_OBJECT(window), "key-release-event", G_CALLBACK(OnKeyReleaseStatic), this);
g_signal_connect(G_OBJECT(window), "scroll-event", G_CALLBACK(OnScrollVW), this);
g_signal_connect(G_OBJECT(window), "button-press-event", G_CALLBACK(OnButtonPressStatic), this);
g_signal_connect(G_OBJECT(window), "button-release-event", G_CALLBACK(OnButtonReleaseStatic), this);
g_signal_connect(G_OBJECT(window), "motion-notify-event", G_CALLBACK(OnMotionNotifyStatic), this);
g_signal_connect(G_OBJECT(window), "key-press-event", G_CALLBACK(OnKeyPress), this);
g_signal_connect(G_OBJECT(window), "key-release-event", G_CALLBACK(OnKeyRelease), this);
g_signal_connect(G_OBJECT(window), "configure-event", G_CALLBACK(OnConfigureStatic), this);
g_signal_connect(G_OBJECT(window), "realize", G_CALLBACK(OnRealizeStatic), this);
g_signal_connect_after(G_OBJECT(render_widget), "configure-event", G_CALLBACK(OnConfigureDareaStatic), this);
#if !GTK_CHECK_VERSION(3,10,0)
// do not draw the default background
gtk_widget_set_double_buffered (GTK_WIDGET(render_widget), false);
#endif
gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(Console.window));
#if !GTK_CHECK_VERSION(3,14,0)
gtk_window_set_has_resize_grip(GTK_WINDOW(window), false);
#endif
}
else if (windowKind == W_Fullscreen)
{
render_widget = gtk_drawing_area_new();
gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(render_widget));
g_signal_connect(G_OBJECT(window), "configure-event", G_CALLBACK(OnConfigureNotify), this);
g_signal_connect(G_OBJECT(window), "focus-in-event", G_CALLBACK(OnFocusInFS), this);
g_signal_connect(G_OBJECT(window), "focus-out-event", G_CALLBACK(OnFocusOutFS), this);
g_signal_connect(G_OBJECT(window), "unmap-event", G_CALLBACK(OnFocusOutFS), this);
g_signal_connect(G_OBJECT(window), "button-press-event", G_CALLBACK(OnButtonPressFS), this);
g_signal_connect(G_OBJECT(window), "button-release-event", G_CALLBACK(OnButtonRelease), this);
g_signal_connect(G_OBJECT(window), "motion-notify-event", G_CALLBACK(OnMotionNotify), this);
g_signal_connect(G_OBJECT(window), "key-press-event", G_CALLBACK(OnKeyPress), this);
g_signal_connect(G_OBJECT(window), "key-release-event", G_CALLBACK(OnKeyRelease), this);
g_signal_connect(G_OBJECT(window), "scroll-event", G_CALLBACK(OnScroll), this);
gtk_widget_add_events(GTK_WIDGET(window), GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
#if !GTK_CHECK_VERSION(3,10,0)
gtk_widget_set_double_buffered (GTK_WIDGET(render_widget), false);
#endif
GValue val = {0,{{0}}};
g_value_init (&val, G_TYPE_BOOLEAN);
g_value_set_boolean (&val, true);
g_object_set_property (G_OBJECT (render_widget), "can-focus", &val);
g_object_set_property (G_OBJECT (window), "can-focus", &val);
g_value_unset (&val);
#if !GTK_CHECK_VERSION(3,14,0)
gtk_window_set_has_resize_grip(GTK_WINDOW(window), false);
#endif
}
else if (windowKind == W_GuiWindow)
{
render_widget = window;
g_signal_connect(G_OBJECT(window), "button-press-event", G_CALLBACK(OnButtonPressGD), this);
g_signal_connect(G_OBJECT(window), "button-release-event", G_CALLBACK(OnButtonReleaseGD), this);
g_signal_connect(G_OBJECT(window), "motion-notify-event", G_CALLBACK(OnMotionNotifyGD), this);
g_signal_connect(G_OBJECT(window), "configure-event", G_CALLBACK(OnConfigureGD), this);
g_signal_connect(G_OBJECT(window), "scroll-event", G_CALLBACK(OnScroll), this);
gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(Console.window));
#if !GTK_CHECK_VERSION(3,14,0)
gtk_window_set_has_resize_grip(GTK_WINDOW(window), false);
#endif
}
else if (windowKind == W_Console)
{
render_widget = window;
}
assert(window);
assert(render_widget);
// Override gtk's default to match name/class of the XLib windows
gtk_window_set_wmclass(GTK_WINDOW(window), C4ENGINENAME, C4ENGINENAME);
gtk_window_set_default_size(GTK_WINDOW(window), size->Wdt, size->Hgt);
g_signal_connect(G_OBJECT(window), "delete-event", G_CALLBACK(OnDelete), this);
handlerDestroy = g_signal_connect(G_OBJECT(window), "destroy", G_CALLBACK(OnDestroyStatic), this);
gtk_widget_add_events(GTK_WIDGET(window), GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK | GDK_SCROLL_MASK);
// TODO: It would be nice to support GDK_SCROLL_SMOOTH_MASK and
// smooth scrolling for scrolling in menus, however that should not
// change the scroll wheel behaviour ingame for zooming or
// inventory change. Note that when both GDK_SCROLL_MASK and
// GDK_SMOOTH_SCROLL_MASK are enabled, both type of scroll events
// are reported, so one needs to make sure to not double-process them.
// It would be nice to have smooth scrolling also e.g. for zooming
// ingame, but it probably requires the notion of smooth scrolling
// other parts of the engine as well.
#ifdef GDK_WINDOWING_X11
GdkScreen * scr = gtk_widget_get_screen(GTK_WIDGET(render_widget));
Display * const dpy = gdk_x11_display_get_xdisplay(gdk_display_get_default());
XVisualInfo *vis_info = glXGetVisualFromFBConfig(dpy, Info);
assert(vis_info);
GdkVisual * vis = gdk_x11_screen_lookup_visual(scr, vis_info->visualid);
XFree(vis_info);
gtk_widget_set_visual(GTK_WIDGET(render_widget),vis);
#endif
gtk_widget_show_all(GTK_WIDGET(window));
// XVisualInfo vitmpl; int blub;
// vitmpl.visual = gdk_x11_visual_get_xvisual(gtk_widget_get_visual(window));
// vitmpl.visualid = XVisualIDFromVisual(vitmpl.visual);
// Info = XGetVisualInfo(dpy, VisualIDMask, &vitmpl, &blub);
// printf("%p\n", gtk_widget_get_visual(render_widget));
// Info = gdk_x11_visual_get_xvisual(gtk_widget_get_visual(render_widget));
// Default icon has been set right after gtk_init(),
// so we don't need to take care about setting the icon here.
SetTitle(Title);
// Wait until window is mapped to get the window's XID
gtk_widget_show_now(GTK_WIDGET(window));
GdkWindow* render_gdk_wnd;
if (GTK_IS_LAYOUT(render_widget))
render_gdk_wnd = gtk_layout_get_bin_window(GTK_LAYOUT(render_widget));
else
render_gdk_wnd = gtk_widget_get_window(GTK_WIDGET(render_widget));
#ifdef GDK_WINDOWING_X11
renderwnd = GDK_WINDOW_XID(render_gdk_wnd);
#elif defined(GDK_WINDOWING_WIN32)
renderwnd = reinterpret_cast<HWND>(gdk_win32_window_get_handle(render_gdk_wnd));
#endif
// Make sure the window is shown and ready to be rendered into,
// this avoids an async X error.
gdk_flush();
if (windowKind == W_Fullscreen)
gdk_window_set_cursor(gtk_widget_get_window(GTK_WIDGET(render_widget)),
gdk_cursor_new_for_display(gdk_display_get_default(), GDK_BLANK_CURSOR));
return this;
}
const GrGLInterface* SkNativeGLContext::createGLContext() {
fDisplay = XOpenDisplay(0);
if (!fDisplay) {
SkDebugf("Failed to open X display.\n");
this->destroyGLContext();
return NULL;
}
// Get a matching FB config
static int visual_attribs[] = {
GLX_X_RENDERABLE , True,
GLX_DRAWABLE_TYPE , GLX_PIXMAP_BIT,
None
};
#ifdef GLX_1_3
//SkDebugf("Getting matching framebuffer configs.\n");
int fbcount;
GLXFBConfig *fbc = glXChooseFBConfig(fDisplay, DefaultScreen(fDisplay),
visual_attribs, &fbcount);
if (!fbc) {
SkDebugf("Failed to retrieve a framebuffer config.\n");
this->destroyGLContext();
return NULL;
}
//SkDebugf("Found %d matching FB configs.\n", fbcount);
// Pick the FB config/visual with the most samples per pixel
//SkDebugf("Getting XVisualInfos.\n");
int best_fbc = -1, best_num_samp = -1;
int i;
for (i = 0; i < fbcount; ++i) {
XVisualInfo *vi = glXGetVisualFromFBConfig(fDisplay, fbc[i]);
if (vi) {
int samp_buf, samples;
glXGetFBConfigAttrib(fDisplay, fbc[i], GLX_SAMPLE_BUFFERS, &samp_buf);
glXGetFBConfigAttrib(fDisplay, fbc[i], GLX_SAMPLES, &samples);
//SkDebugf(" Matching fbconfig %d, visual ID 0x%2x: SAMPLE_BUFFERS = %d,"
// " SAMPLES = %d\n",
// i, (unsigned int)vi->visualid, samp_buf, samples);
if (best_fbc < 0 || (samp_buf && samples > best_num_samp))
best_fbc = i, best_num_samp = samples;
}
XFree(vi);
}
GLXFBConfig bestFbc = fbc[best_fbc];
// Be sure to free the FBConfig list allocated by glXChooseFBConfig()
XFree(fbc);
// Get a visual
XVisualInfo *vi = glXGetVisualFromFBConfig(fDisplay, bestFbc);
//SkDebugf("Chosen visual ID = 0x%x\n", (unsigned int)vi->visualid);
#else
int numVisuals;
XVisualInfo visTemplate, *visReturn;
visReturn = XGetVisualInfo(fDisplay, VisualNoMask, &visTemplate, &numVisuals);
if (NULL == visReturn)
{
SkDebugf("Failed to get visual information.\n");
this->destroyGLContext();
return NULL;
}
int best = -1, best_num_samp = -1;
for (int i = 0; i < numVisuals; ++i)
{
int samp_buf, samples;
glXGetConfig(fDisplay, &visReturn[i], GLX_SAMPLE_BUFFERS, &samp_buf);
glXGetConfig(fDisplay, &visReturn[i], GLX_SAMPLES, &samples);
if (best < 0 || (samp_buf && samples > best_num_samp))
best = i, best_num_samp = samples;
}
XVisualInfo temp = visReturn[best];
XVisualInfo *vi = &temp;
XFree(visReturn);
#endif
fPixmap = XCreatePixmap(fDisplay, RootWindow(fDisplay, vi->screen), 10, 10, vi->depth);
if (!fPixmap) {
SkDebugf("Failed to create pixmap.\n");
this->destroyGLContext();
return NULL;
}
fGlxPixmap = glXCreateGLXPixmap(fDisplay, vi, fPixmap);
#ifdef GLX_1_3
// Done with the visual info data
XFree(vi);
#endif
// Create the context
// Install an X error handler so the application won't exit if GL 3.0
// context allocation fails.
//
// Note this error handler is global.
// All display connections in all threads of a process use the same
// error handler, so be sure to guard against other threads issuing
// X commands while this code is running.
ctxErrorOccurred = false;
int (*oldHandler)(Display*, XErrorEvent*) =
XSetErrorHandler(&ctxErrorHandler);
// Get the default screen's GLX extension list
const char *glxExts = glXQueryExtensionsString(
fDisplay, DefaultScreen(fDisplay)
);
// Check for the GLX_ARB_create_context extension string and the function.
// If either is not present, use GLX 1.3 context creation method.
if (!gluCheckExtension(
reinterpret_cast<const GLubyte*>("GLX_ARB_create_context")
, reinterpret_cast<const GLubyte*>(glxExts)))
{
//SkDebugf("GLX_ARB_create_context not found."
// " Using old-style GLX context.\n");
#ifdef GLX_1_3
fContext = glXCreateNewContext(fDisplay, bestFbc, GLX_RGBA_TYPE, 0, True);
#else
fContext = glXCreateContext(fDisplay, vi, 0, True);
#endif
}
#ifdef GLX_1_3
else {
//SkDebugf("Creating context.\n");
PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribsARB =
(PFNGLXCREATECONTEXTATTRIBSARBPROC) glXGetProcAddressARB((GrGLubyte*)"glXCreateContextAttribsARB");
int context_attribs[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
GLX_CONTEXT_MINOR_VERSION_ARB, 0,
//GLX_CONTEXT_FLAGS_ARB , GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
None
};
fContext = glXCreateContextAttribsARB(
fDisplay, bestFbc, 0, True, context_attribs
);
// Sync to ensure any errors generated are processed.
XSync(fDisplay, False);
if (!ctxErrorOccurred && fContext) {
//SkDebugf( "Created GL 3.0 context.\n" );
} else {
// Couldn't create GL 3.0 context.
// Fall back to old-style 2.x context.
// When a context version below 3.0 is requested,
// implementations will return the newest context version compatible
// with OpenGL versions less than version 3.0.
// GLX_CONTEXT_MAJOR_VERSION_ARB = 1
context_attribs[1] = 1;
// GLX_CONTEXT_MINOR_VERSION_ARB = 0
context_attribs[3] = 0;
ctxErrorOccurred = false;
//SkDebugf("Failed to create GL 3.0 context."
// " Using old-style GLX context.\n");
fContext = glXCreateContextAttribsARB(
fDisplay, bestFbc, 0, True, context_attribs
);
}
}
#endif
// Sync to ensure any errors generated are processed.
XSync(fDisplay, False);
// Restore the original error handler
XSetErrorHandler(oldHandler);
if (ctxErrorOccurred || !fContext) {
SkDebugf("Failed to create an OpenGL context.\n");
this->destroyGLContext();
return NULL;
}
// Verify that context is a direct context
if (!glXIsDirect(fDisplay, fContext)) {
//SkDebugf("Indirect GLX rendering context obtained.\n");
} else {
//SkDebugf("Direct GLX rendering context obtained.\n");
}
//SkDebugf("Making context current.\n");
if (!glXMakeCurrent(fDisplay, fGlxPixmap, fContext)) {
SkDebugf("Could not set the context.\n");
this->destroyGLContext();
return NULL;
}
const GrGLInterface* interface = GrGLCreateNativeInterface();
if (!interface) {
SkDebugf("Failed to create gl interface");
this->destroyGLContext();
return NULL;
}
return interface;
}
// Create the OpenGL or OpenGL ES context
//
int _glfwCreateContext(_GLFWwindow* window,
const _GLFWctxconfig* ctxconfig,
const _GLFWfbconfig* fbconfig)
{
int attribs[40];
GLXFBConfig native;
GLXContext share = NULL;
if (ctxconfig->share)
share = ctxconfig->share->glx.context;
if (!chooseFBConfig(fbconfig, &native))
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"GLX: Failed to find a suitable GLXFBConfig");
return GL_FALSE;
}
// Retrieve the corresponding visual
window->glx.visual = glXGetVisualFromFBConfig(_glfw.x11.display, native);
if (!window->glx.visual)
{
_glfwInputError(GLFW_PLATFORM_ERROR,
"GLX: Failed to retrieve visual for GLXFBConfig");
return GL_FALSE;
}
if (ctxconfig->api == GLFW_OPENGL_ES_API)
{
if (!_glfw.glx.ARB_create_context ||
!_glfw.glx.ARB_create_context_profile ||
!_glfw.glx.EXT_create_context_es2_profile)
{
_glfwInputError(GLFW_API_UNAVAILABLE,
"GLX: OpenGL ES requested but GLX_EXT_create_context_es2_profile is unavailable");
return GL_FALSE;
}
}
if (ctxconfig->forward)
{
if (!_glfw.glx.ARB_create_context)
{
_glfwInputError(GLFW_VERSION_UNAVAILABLE,
"GLX: Forward compatibility requested but GLX_ARB_create_context_profile is unavailable");
return GL_FALSE;
}
}
if (ctxconfig->profile)
{
if (!_glfw.glx.ARB_create_context ||
!_glfw.glx.ARB_create_context_profile)
{
_glfwInputError(GLFW_VERSION_UNAVAILABLE,
"GLX: An OpenGL profile requested but GLX_ARB_create_context_profile is unavailable");
return GL_FALSE;
}
}
_glfwGrabXErrorHandler();
if (_glfw.glx.ARB_create_context)
{
int index = 0, mask = 0, flags = 0, strategy = 0;
if (ctxconfig->api == GLFW_OPENGL_API)
{
if (ctxconfig->forward)
flags |= GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
if (ctxconfig->profile)
{
if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
mask |= GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
mask |= GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
}
}
else
mask |= GLX_CONTEXT_ES2_PROFILE_BIT_EXT;
if (ctxconfig->debug)
flags |= GLX_CONTEXT_DEBUG_BIT_ARB;
if (ctxconfig->robustness)
{
if (_glfw.glx.ARB_create_context_robustness)
{
if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION)
strategy = GLX_NO_RESET_NOTIFICATION_ARB;
else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
strategy = GLX_LOSE_CONTEXT_ON_RESET_ARB;
flags |= GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB;
}
}
if (ctxconfig->release)
{
if (_glfw.glx.ARB_context_flush_control)
{
if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_NONE)
{
setGLXattrib(GLX_CONTEXT_RELEASE_BEHAVIOR_ARB,
GLX_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB);
}
else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH)
{
setGLXattrib(GLX_CONTEXT_RELEASE_BEHAVIOR_ARB,
GLX_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB);
}
}
}
if (ctxconfig->major != 1 || ctxconfig->minor != 0)
{
// NOTE: Only request an explicitly versioned context when
// necessary, as explicitly requesting version 1.0 does not
// always return the highest available version
setGLXattrib(GLX_CONTEXT_MAJOR_VERSION_ARB, ctxconfig->major);
setGLXattrib(GLX_CONTEXT_MINOR_VERSION_ARB, ctxconfig->minor);
}
if (mask)
setGLXattrib(GLX_CONTEXT_PROFILE_MASK_ARB, mask);
if (flags)
setGLXattrib(GLX_CONTEXT_FLAGS_ARB, flags);
if (strategy)
setGLXattrib(GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, strategy);
setGLXattrib(None, None);
window->glx.context =
_glfw.glx.CreateContextAttribsARB(_glfw.x11.display,
native,
share,
True,
attribs);
if (!window->glx.context)
{
// HACK: This is a fallback for the broken Mesa implementation of
// GLX_ARB_create_context_profile, which fails default 1.0
// context creation with a GLXBadProfileARB error in violation
// of the extension spec
if (_glfw.x11.errorCode == _glfw.glx.errorBase + GLXBadProfileARB &&
ctxconfig->api == GLFW_OPENGL_API &&
ctxconfig->profile == GLFW_OPENGL_ANY_PROFILE &&
ctxconfig->forward == GL_FALSE)
{
window->glx.context = createLegacyContext(window, native, share);
}
}
}
else
window->glx.context = createLegacyContext(window, native, share);
_glfwReleaseXErrorHandler();
if (!window->glx.context)
{
_glfwInputXError(GLFW_VERSION_UNAVAILABLE, "GLX: Failed to create context");
return GL_FALSE;
}
return GL_TRUE;
}
MyWindow::MyWindow(const std::string &title,int width,int height)
: initError(false),clientWidth(0),clientHeight(0),iconified(false),focused(true),sized(false),
justCreated(true),mouseMoveCallback(0),inputCallback(0),lockCursor(false),foreground(true)
{
#ifdef WIN32
hglrc=0;
hdc=0;
//
HINSTANCE hInstance=GetModuleHandle(0);
WNDCLASSEX wcex;
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc = WndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = hInstance;
wcex.hIcon = LoadIcon(hInstance,MAKEINTRESOURCE(IDI_APPLICATION));
wcex.hCursor = LoadCursor(NULL,IDC_ARROW);
wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
wcex.lpszMenuName = NULL;
#ifdef UNICODE
wcex.lpszClassName = L"win32app";
#else
wcex.lpszClassName = "win32app";
#endif
wcex.hIconSm = LoadIcon(wcex.hInstance,MAKEINTRESOURCE(IDI_APPLICATION));
if(!RegisterClassEx(&wcex)) {
std::cout << "MyWindow : Call to RegisterClassEx failed!\n";
}
#ifdef UNICODE
wchar_t title2[256];
MultiByteToWideChar(CP_ACP,0,title.c_str(),-1,title2,256);
#else
const char *title2=title.c_str();
#endif
hWnd = CreateWindow(wcex.lpszClassName,title2,WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,CW_USEDEFAULT,width,height,NULL,NULL,hInstance,NULL);
SetWindowLongPtr(hWnd,GWL_USERDATA,(LONG_PTR)this);
ShowWindow(hWnd,SW_SHOW);
//
hdc= GetDC(hWnd);
PIXELFORMATDESCRIPTOR pfd;
ZeroMemory(&pfd,sizeof(pfd));
pfd.nSize = sizeof(pfd);
pfd.nVersion = 1;
pfd.dwFlags = PFD_DRAW_TO_WINDOW | PFD_SUPPORT_OPENGL | PFD_GENERIC_ACCELERATED | PFD_DOUBLEBUFFER;
pfd.iPixelType = PFD_TYPE_RGBA;
pfd.cColorBits = 24;
pfd.cRedBits = pfd.cGreenBits = pfd.cBlueBits = 8;
pfd.cDepthBits = 32;
int iPixelFormat = ChoosePixelFormat(hdc,&pfd);
if(iPixelFormat == 0) {
std::cout << "MyWindow : ChoosePixelFormat failed.\n";
initError=true;
return;
}
if(SetPixelFormat(hdc,iPixelFormat,&pfd) != TRUE) {
std::cout << "MyWindow : SetPixelFormat failed.\n";
initError=true;
return;
}
//
HGLRC tempContext = wglCreateContext(hdc);
wglMakeCurrent(hdc,tempContext);
//
PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB=
(PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
PFNWGLSWAPINTERVALEXTPROC wglSwapInterval=
(PFNWGLSWAPINTERVALEXTPROC)wglGetProcAddress("wglSwapIntervalEXT");
//
wglMakeCurrent(0,0);
wglDeleteContext(tempContext);
//
int attribs[] ={
WGL_CONTEXT_MAJOR_VERSION_ARB,3,
WGL_CONTEXT_MINOR_VERSION_ARB,3,
WGL_CONTEXT_FLAGS_ARB,0,
0
};
hglrc=wglCreateContextAttribsARB(hdc,0,attribs);
for(int i=2;i>=0;i--) {
if(!hglrc) {
attribs[3]=i;
hglrc=wglCreateContextAttribsARB(hdc,0,attribs);
}
}
if(!hglrc) {
std::cout << "OpenGL 3+ not supported.\n";
initError=true;
return;
}
wglMakeCurrent(hdc,hglrc);
wglSwapInterval(1);
//
RAWINPUTDEVICE Rid[2];
Rid[0].usUsagePage = (USHORT)0x01;//HID_USAGE_PAGE_GENERIC;
Rid[0].usUsage = (USHORT)0x02;//HID_USAGE_GENERIC_MOUSE;
Rid[0].dwFlags = RIDEV_INPUTSINK;
Rid[0].hwndTarget = hWnd;
Rid[1].usUsagePage = (USHORT)0x01;//HID_USAGE_PAGE_GENERIC;
Rid[1].usUsage = (USHORT)0x06;//HID_USAGE_GENERIC_KEYBOARD;
Rid[1].dwFlags = RIDEV_INPUTSINK;
Rid[1].hwndTarget = hWnd;
RegisterRawInputDevices(Rid,2,sizeof(RAWINPUTDEVICE));
//
//inputCodeMap[65]=keyA;
//inputCodeMap[68]=keyD;
//inputCodeMap[83]=keyS;
//inputCodeMap[87]=keyW;
#endif
#ifdef LINUX
// bool ctxErrorOccurred=false;
display = XOpenDisplay(NULL);
if(!display) {
std::cout << "Window : Failed to open X display.\n";
initError=true;
return;
}
static int visual_attribs[] ={
GLX_X_RENDERABLE,True,
GLX_DRAWABLE_TYPE,GLX_WINDOW_BIT,
GLX_RENDER_TYPE,GLX_RGBA_BIT,
GLX_X_VISUAL_TYPE,GLX_TRUE_COLOR,
GLX_RED_SIZE,8,
GLX_GREEN_SIZE,8,
GLX_BLUE_SIZE,8,
GLX_ALPHA_SIZE,8,
GLX_DEPTH_SIZE,24,
GLX_STENCIL_SIZE,8,
GLX_DOUBLEBUFFER,True,
//GLX_SAMPLE_BUFFERS , 1,
//GLX_SAMPLES , 4,
None
};
int glx_major,glx_minor;
if(!glXQueryVersion(display,&glx_major,&glx_minor) ||
((glx_major == 1) && (glx_minor < 3)) || (glx_major < 1)) {
std::cout << "Window : Invalid GLX version.\n";
initError=true;
return;
}
int fbcount;
GLXFBConfig* fbc = glXChooseFBConfig(display,DefaultScreen(display),visual_attribs,&fbcount);
if(!fbc) {
std::cout << "Window :Failed to retrieve a framebuffer config.\n";
initError=true;
return;
}
int best_fbc = -1,worst_fbc = -1,best_num_samp = -1,worst_num_samp = 999;
for(int i=0; i<fbcount; ++i) {
XVisualInfo *vi = glXGetVisualFromFBConfig(display,fbc[i]);
if(vi) {
int samp_buf,samples;
glXGetFBConfigAttrib(display,fbc[i],GLX_SAMPLE_BUFFERS,&samp_buf);
glXGetFBConfigAttrib(display,fbc[i],GLX_SAMPLES,&samples);
std::cout << "Matching fbconfig " << i
<<", visual ID 0x" << vi->visualid
<< ": SAMPLE_BUFFERS = " << samp_buf
<<", SAMPLES = " << samples
<<"\n";
if(best_fbc < 0 || samp_buf && samples > best_num_samp) {
best_fbc = i;
best_num_samp = samples;
}
if(worst_fbc < 0 || !samp_buf || samples < worst_num_samp) {
worst_fbc = i;
worst_num_samp = samples;
}
}
XFree(vi);
}
GLXFBConfig bestFbc = fbc[best_fbc];
XFree(fbc);
XVisualInfo *vi = glXGetVisualFromFBConfig(display,bestFbc);
std::cout << "Chosen visual ID = 0x" << vi->visualid <<"\n";
XSetWindowAttributes swa;
swa.colormap = cmap = XCreateColormap(display,
RootWindow(display,vi->screen),
vi->visual,AllocNone);
swa.background_pixmap = None;
swa.border_pixel = 0;
swa.event_mask = ExposureMask | VisibilityChangeMask |KeyPressMask | PointerMotionMask |StructureNotifyMask;
swa.bit_gravity = StaticGravity;
win = XCreateWindow(display,RootWindow(display,vi->screen),
0,0,100,100,0,vi->depth,InputOutput,
vi->visual,
CWBorderPixel|CWColormap|CWEventMask,&swa);
if(!win) {
std::cout << "Window : Failed to create window.\n";
initError=true;
return;
}
XFree(vi);
XStoreName(display,win,title.c_str());
XMapWindow(display,win);
const char *glxExts = glXQueryExtensionsString(display,DefaultScreen(display));
glXCreateContextAttribsARBProc glXCreateContextAttribsARB = 0;
glXCreateContextAttribsARB = (glXCreateContextAttribsARBProc)
glXGetProcAddressARB((const GLubyte *) "glXCreateContextAttribsARB");
ctx = 0;
ctxErrorOccurred = false;
int(*oldHandler)(Display*,XErrorEvent*) =
XSetErrorHandler(&ctxErrorHandler);
if(!isExtensionSupported(glxExts,"GLX_ARB_create_context") ||
!glXCreateContextAttribsARB) {
std::cout << "Window : glXCreateContextAttribsARB() not found.\n";
initError=true;
return;
} else {
int context_attribs[] ={
GLX_CONTEXT_MAJOR_VERSION_ARB,3,
GLX_CONTEXT_MINOR_VERSION_ARB,0,
GLX_CONTEXT_FLAGS_ARB,0,
None
};
ctx = glXCreateContextAttribsARB(display,bestFbc,0,
True,context_attribs);
XSync(display,False);
if(!ctxErrorOccurred && ctx) {
std::cout << "Created GL 3.0 context\n";
} else {
std::cout << "Window : Failed to create GL 3.0 context.\n";
initError=true;
return;
}
}
//
XSync(display,False);
XSetErrorHandler(oldHandler);
if(ctxErrorOccurred || !ctx) {
std::cout << "Window : Failed to create an OpenGL context.\n";
initError=true;
return;
}
// Verifying that context is a direct context
if(!glXIsDirect(display,ctx)) {
std::cout << "Indirect GLX rendering context obtained.\n";
} else {
std::cout << "Direct GLX rendering context obtained.\n";
}
//
glXMakeCurrent(display,win,ctx);
if(PFNGLXSWAPINTERVALMESAPROC glXSwapIntervalMESA=
(PFNGLXSWAPINTERVALMESAPROC)
glXGetProcAddressARB((const GLubyte *)"glXSwapIntervalMESA")) {
glXSwapIntervalMESA(1);
} else if(PFNGLXSWAPINTERVALEXTPROC glXSwapIntervalEXT=
(PFNGLXSWAPINTERVALEXTPROC)
glXGetProcAddressARB((const GLubyte *)"glXSwapIntervalEXT")) {
glXSwapIntervalEXT(display,glXGetCurrentDrawable(),1);
} else if(PFNGLXSWAPINTERVALSGIPROC glXSwapIntervalSGI=
(PFNGLXSWAPINTERVALSGIPROC)
glXGetProcAddressARB((const GLubyte *)"glXSwapIntervalSGI")) {
glXSwapIntervalSGI(1);
}
#endif
}
bool RenderImageImplPBuffer::Create(unsigned int width, unsigned int height, unsigned int, bool depthBuffer)
{
// Store the dimensions
myWidth = width;
myHeight = height;
// Define the PBuffer attributes
int visualAttributes[] =
{
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_DRAWABLE_TYPE, GLX_PBUFFER_BIT,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_ALPHA_SIZE, 8,
GLX_DEPTH_SIZE, (depthBuffer ? 24 : 0),
0
};
int PBufferAttributes[] =
{
GLX_PBUFFER_WIDTH, width,
GLX_PBUFFER_HEIGHT, height,
0
};
// Get the available FB configurations
int nbConfigs = 0;
GLXFBConfig* configs = glXChooseFBConfigSGIX(myDisplay, DefaultScreen(myDisplay), visualAttributes, &nbConfigs);
if (!configs || !nbConfigs)
{
Err() << "Impossible to create render image (failed to find a suitable pixel format for PBuffer)" << std::endl;
return false;
}
// Create the P-Buffer
myPBuffer = glXCreateGLXPbufferSGIX(myDisplay, configs[0], width, height, PBufferAttributes);
if (!myPBuffer)
{
Err() << "Impossible to create render image (failed to create the OpenGL PBuffer)" << std::endl;
XFree(configs);
return false;
}
// Check the actual size of the P-Buffer
unsigned int actualWidth, actualHeight;
glXQueryGLXPbufferSGIX(myDisplay, myPBuffer, GLX_WIDTH_SGIX, &actualWidth);
glXQueryGLXPbufferSGIX(myDisplay, myPBuffer, GLX_HEIGHT_SGIX, &actualHeight);
if ((actualWidth != width) || (actualHeight != height))
{
Err() << "Impossible to create render image (failed to match the requested size). "
<< "Size: " << actualWidth << "x" << actualHeight << " - "
<< "Requested: " << width << "x" << height
<< std::endl;
XFree(configs);
return false;
}
// We'll have to share the P-Buffer context with the current context
GLXDrawable currentDrawable = glXGetCurrentDrawable();
GLXContext currentContext = glXGetCurrentContext();
if (currentContext)
glXMakeCurrent(myDisplay, NULL, NULL);
// Create the context
XVisualInfo* visual = glXGetVisualFromFBConfig(myDisplay, configs[0]);
myContext = glXCreateContext(myDisplay, visual, currentContext, true);
if (!myContext)
{
Err() << "Impossible to create render image (failed to create the OpenGL context)" << std::endl;
XFree(configs);
XFree(visual);
return false;
}
// Restore the previous active context
if (currentContext)
glXMakeCurrent(myDisplay, currentDrawable, currentContext);
// Cleanup resources
XFree(configs);
XFree(visual);
return true;
}
int fgPlatformGlutGet ( GLenum eWhat )
{
switch( eWhat )
{
/*
* Those calls are somewhat similiar, as they use XGetWindowAttributes()
* function
*/
case GLUT_WINDOW_X:
case GLUT_WINDOW_Y:
case GLUT_WINDOW_BORDER_WIDTH:
case GLUT_WINDOW_HEADER_HEIGHT:
{
int x, y;
Window w;
if( fgStructure.CurrentWindow == NULL )
return 0;
XTranslateCoordinates(
fgDisplay.pDisplay.Display,
fgStructure.CurrentWindow->Window.Handle,
fgDisplay.pDisplay.RootWindow,
0, 0, &x, &y, &w);
switch ( eWhat )
{
case GLUT_WINDOW_X: return x;
case GLUT_WINDOW_Y: return y;
}
if ( w == 0 )
return 0;
XTranslateCoordinates(
fgDisplay.pDisplay.Display,
fgStructure.CurrentWindow->Window.Handle,
w, 0, 0, &x, &y, &w);
switch ( eWhat )
{
case GLUT_WINDOW_BORDER_WIDTH: return x;
case GLUT_WINDOW_HEADER_HEIGHT: return y;
}
}
case GLUT_WINDOW_WIDTH:
case GLUT_WINDOW_HEIGHT:
{
XWindowAttributes winAttributes;
if( fgStructure.CurrentWindow == NULL )
return 0;
XGetWindowAttributes(
fgDisplay.pDisplay.Display,
fgStructure.CurrentWindow->Window.Handle,
&winAttributes
);
switch ( eWhat )
{
case GLUT_WINDOW_WIDTH: return winAttributes.width ;
case GLUT_WINDOW_HEIGHT: return winAttributes.height ;
}
}
/* Colormap size is handled in a bit different way than all the rest */
case GLUT_WINDOW_COLORMAP_SIZE:
if(
#ifndef EGL_VERSION_1_0
fgPlatformGetConfig( GLX_RGBA ) ||
#endif
fgStructure.CurrentWindow == NULL)
{
/*
* We've got a RGBA visual, so there is no colormap at all.
* The other possibility is that we have no current window set.
*/
return 0;
}
else
{
XVisualInfo * visualInfo;
int result;
#ifdef EGL_VERSION_1_0
EGLint vid = 0;
XVisualInfo visualTemplate;
int num_visuals;
if (!eglGetConfigAttrib(fgDisplay.pDisplay.egl.Display,
fgStructure.CurrentWindow->Window.pContext.egl.Config,
EGL_NATIVE_VISUAL_ID, &vid))
fgError("eglGetConfigAttrib(EGL_NATIVE_VISUAL_ID) failed");
visualTemplate.visualid = vid;
visualInfo = XGetVisualInfo(fgDisplay.pDisplay.Display, VisualIDMask, &visualTemplate, &num_visuals);
#else
{
const GLXFBConfig fbconfig =
fgStructure.CurrentWindow->Window.pContext.FBConfig;
visualInfo =
glXGetVisualFromFBConfig( fgDisplay.pDisplay.Display, fbconfig );
}
#endif
result = visualInfo->visual->map_entries;
XFree(visualInfo);
return result;
}
default:
#ifdef EGL_VERSION_1_0
return fghPlatformGlutGetEGL(eWhat);
#else
return fghPlatformGlutGetGLX(eWhat);
#endif
}
}
static bool config_window_x11(struct MPGLContext *ctx, int flags)
{
struct vo *vo = ctx->vo;
struct glx_context *glx_ctx = ctx->priv;
int glx_major, glx_minor;
if (!glXQueryVersion(vo->x11->display, &glx_major, &glx_minor)) {
MP_ERR(vo, "GLX not found.\n");
return false;
}
// FBConfigs were added in GLX version 1.3.
if (MPGL_VER(glx_major, glx_minor) < MPGL_VER(1, 3)) {
MP_ERR(vo, "GLX version older than 1.3.\n");
return false;
}
int glx_attribs[] = {
GLX_X_RENDERABLE, True,
GLX_X_VISUAL_TYPE, GLX_TRUE_COLOR,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_ALPHA_SIZE, 0,
GLX_DOUBLEBUFFER, True,
None
};
GLXFBConfig fbc = NULL;
if (flags & VOFLAG_ALPHA) {
set_glx_attrib(glx_attribs, GLX_ALPHA_SIZE, 1);
fbc = select_fb_config(vo, glx_attribs, flags);
if (!fbc) {
set_glx_attrib(glx_attribs, GLX_ALPHA_SIZE, 0);
flags &= ~VOFLAG_ALPHA;
}
}
if (!fbc)
fbc = select_fb_config(vo, glx_attribs, flags);
if (!fbc) {
MP_ERR(vo, "no GLX support present\n");
return false;
}
MP_VERBOSE(vo, "GLX chose FB config with ID 0x%x\n", (int)(intptr_t)fbc);
glx_ctx->fbc = fbc;
glx_ctx->vinfo = glXGetVisualFromFBConfig(vo->x11->display, fbc);
if (glx_ctx->vinfo) {
MP_VERBOSE(vo, "GLX chose visual with ID 0x%x\n",
(int)glx_ctx->vinfo->visualid);
} else {
MP_WARN(vo, "Selected GLX FB config has no associated X visual\n");
}
glXGetFBConfigAttrib(vo->x11->display, fbc, GLX_RED_SIZE, &ctx->depth_r);
glXGetFBConfigAttrib(vo->x11->display, fbc, GLX_GREEN_SIZE, &ctx->depth_g);
glXGetFBConfigAttrib(vo->x11->display, fbc, GLX_BLUE_SIZE, &ctx->depth_b);
vo_x11_config_vo_window(vo, glx_ctx->vinfo, flags | VOFLAG_HIDDEN, "gl");
bool success = false;
if (!(flags & VOFLAG_GLES)) {
success = create_context_x11_gl3(ctx, flags, 300, false);
if (!success)
success = create_context_x11_old(ctx);
}
if (!success) // try ES
success = create_context_x11_gl3(ctx, flags, 200, true);
if (success && !glXIsDirect(vo->x11->display, glx_ctx->context))
ctx->gl->mpgl_caps |= MPGL_CAP_SW;
return success;
}
