static int
determineMesaGLX(void)
{
#ifdef GLX_VERSION_1_1
const char *vendor, *version, *ch;
vendor = glXGetClientString(__glutDisplay, GLX_VENDOR);
if (!strcmp(vendor, "Brian Paul")) {
version = glXGetClientString(__glutDisplay, GLX_VERSION);
for (ch = version; *ch != ' ' && *ch != '\0'; ch++);
for (; *ch == ' ' && *ch != '\0'; ch++);
#define MESA_NAME "Mesa " /* Trailing space is intentional. */
if (!strncmp(MESA_NAME, ch, sizeof(MESA_NAME) - 1)) {
return 1;
}
}
#else
/* Recent versions for Mesa should support GLX 1.1 and
therefore glXGetClientString. If we get into this case,
we would be compiling against a true OpenGL not supporting
GLX 1.1, and the resulting compiled library won't work well
with Mesa then. */
#endif
return 0;
}
/*< private >*/
void
_gdk_x11_gl_print_glx_info (Display *xdisplay,
int screen_num)
{
static gboolean done = FALSE;
if (!done)
{
g_message (" -- Server GLX_VENDOR : %s",
glXQueryServerString (xdisplay, screen_num, GLX_VENDOR));
g_message (" -- Server GLX_VERSION : %s",
glXQueryServerString (xdisplay, screen_num, GLX_VERSION));
g_message (" -- Server GLX_EXTENSIONS : %s",
glXQueryServerString (xdisplay, screen_num, GLX_EXTENSIONS));
g_message (" -- Client GLX_VENDOR : %s",
glXGetClientString (xdisplay, GLX_VENDOR));
g_message (" -- Client GLX_VERSION : %s",
glXGetClientString (xdisplay, GLX_VERSION));
g_message (" -- Client GLX_EXTENSIONS : %s",
glXGetClientString (xdisplay, GLX_EXTENSIONS));
done = TRUE;
}
}
//
// Constructor
//
CRegistry::CRegistry(
bool WindowSystem
):
m_VersionStr( NULL ),
m_ExtensionsStr( NULL )
{
if (WindowSystem)
{
#ifdef _WIN32
if (!wglGetExtensionsStringARB)
throw Sys::CException( this, "::CRegistry() : Failed to obtain wglGetExtensionsStringARB entry point." );
HDC DC = wglGetCurrentDC();
if (!DC)
throw Sys::CException( this, "::CRegistry() : Invalid current DC." );
m_ExtensionsStr = wglGetExtensionsStringARB( DC );
#elif defined (__linux__)
Display *Dpy = glXGetCurrentDisplay();
if (!Dpy)
throw Sys::CException( this, "::CRegistry() : Invalid current Display." );
m_ExtensionsString = glXGetClientString( Dpy, GLX_EXTENSIONS );
#endif // _WIN32
}
else
{
m_VersionStr = reinterpret_cast<const char *>( glGetString( GL_VERSION ) );
m_ExtensionsStr = reinterpret_cast<const char *>( glGetString( GL_EXTENSIONS ) );
}
TokenizeString();
}
void* QGLXContext::getProcAddress(const QString& procName)
{
Q_XCB_NOOP(m_screen->connection());
typedef void *(*qt_glXGetProcAddressARB)(const GLubyte *);
static qt_glXGetProcAddressARB glXGetProcAddressARB = 0;
static bool resolved = false;
if (resolved && !glXGetProcAddressARB)
return 0;
if (!glXGetProcAddressARB) {
QList<QByteArray> glxExt = QByteArray(glXGetClientString(DISPLAY_FROM_XCB(m_screen), GLX_EXTENSIONS)).split(' ');
if (glxExt.contains("GLX_ARB_get_proc_address")) {
#if defined(Q_OS_LINUX) || defined(Q_OS_BSD4)
void *handle = dlopen(NULL, RTLD_LAZY);
if (handle) {
glXGetProcAddressARB = (qt_glXGetProcAddressARB) dlsym(handle, "glXGetProcAddressARB");
dlclose(handle);
}
if (!glXGetProcAddressARB)
#endif
{
extern const QString qt_gl_library_name();
// QLibrary lib(qt_gl_library_name());
QLibrary lib(QLatin1String("GL"));
glXGetProcAddressARB = (qt_glXGetProcAddressARB) lib.resolve("glXGetProcAddressARB");
}
}
resolved = true;
}
if (!glXGetProcAddressARB)
return 0;
return glXGetProcAddressARB(reinterpret_cast<const GLubyte *>(procName.toLatin1().data()));
}
static gboolean
_has_texture_from_pixmap (Display *display)
{
int screen;
const char *server_extensions;
const char *client_extensions;
gboolean ret = FALSE;
screen = DefaultScreen (display);
server_extensions = glXQueryServerString (display, screen,
GLX_EXTENSIONS);
if (!_has_extension (server_extensions,
"GLX_EXT_texture_from_pixmap"))
goto out;
client_extensions = glXGetClientString (display, GLX_EXTENSIONS);
if (!_has_extension (client_extensions,
"GLX_EXT_texture_from_pixmap"))
goto out;
ret = TRUE;
out:
return ret;
}
void *QGLContext::getProcAddress(const QString &proc) const
{
typedef void *(*qt_glXGetProcAddressARB)(const GLubyte *);
static qt_glXGetProcAddressARB glXGetProcAddressARB = 0;
static bool resolved = false;
if (resolved && !glXGetProcAddressARB)
return 0;
if (!glXGetProcAddressARB) {
QString glxExt = QString(QLatin1String(glXGetClientString(QX11Info::display(), GLX_EXTENSIONS)));
if (glxExt.contains(QLatin1String("GLX_ARB_get_proc_address"))) {
#if defined(Q_OS_LINUX) || defined(Q_OS_BSD4)
void *handle = dlopen(NULL, RTLD_LAZY);
if (handle) {
glXGetProcAddressARB = (qt_glXGetProcAddressARB) dlsym(handle, "glXGetProcAddressARB");
dlclose(handle);
}
if (!glXGetProcAddressARB)
#endif
{
extern const QString qt_gl_library_name();
QLibrary lib(qt_gl_library_name());
glXGetProcAddressARB = (qt_glXGetProcAddressARB) lib.resolve("glXGetProcAddressARB");
}
}
resolved = true;
}
if (!glXGetProcAddressARB)
return 0;
return glXGetProcAddressARB(reinterpret_cast<const GLubyte *>(proc.toLatin1().data()));
}
JNIEXPORT jint JNICALL GLX_NATIVE(glXGetClientString)
(JNIEnv *env, jclass that, jint arg0, jint arg1)
{
jint rc = 0;
GLX_NATIVE_ENTER(env, that, glXGetClientString_FUNC);
rc = (jint)glXGetClientString(arg0, arg1);
GLX_NATIVE_EXIT(env, that, glXGetClientString_FUNC);
return rc;
}
static void screenInfo( Display *dpy, int scrnum, QString &infotext )
{
const char *serverVendor = glXQueryServerString( dpy, scrnum, GLX_VENDOR );
const char *serverVersion = glXQueryServerString( dpy, scrnum, GLX_VERSION );
const char *serverExtensions = glXQueryServerString( dpy, scrnum, GLX_EXTENSIONS );
const char *clientVendor = glXGetClientString( dpy, GLX_VENDOR );
const char *clientVersion = glXGetClientString( dpy, GLX_VERSION );
const char *clientExtensions = glXGetClientString( dpy, GLX_EXTENSIONS );
const char *glxExtensions = glXQueryExtensionsString( dpy, scrnum );
const char *glVendor = (const char *) glGetString( GL_VENDOR );
const char *glRenderer = (const char *) glGetString( GL_RENDERER );
const char *glVersion = (const char *) glGetString( GL_VERSION );
const char *glExtensions = (const char *) glGetString( GL_EXTENSIONS );
const char *gluVersion = (const char *) gluGetString( (GLenum) GLU_VERSION );
const char *gluExtensions = (const char *) gluGetString( (GLenum) GLU_EXTENSIONS );
infotext.sprintf( "%sServer GLX vendor string: %s\n", infotext.ascii(), serverVendor );
infotext.sprintf( "%sServer GLX version string: %s\n", infotext.ascii(), serverVersion );
infotext.sprintf( "%sServer GLX extensions:\n", infotext.ascii() );
infotext += QString( serverExtensions ).replace( ' ', '\n' ) + "\n\n";
infotext.sprintf( "%sClient GLX vendor string: %s\n", infotext.ascii(), clientVendor );
infotext.sprintf( "%sClient GLX version string: %s\n", infotext.ascii(), clientVersion );
infotext.sprintf( "%sClient GLX extensions:\n", infotext.ascii() );
infotext += QString( clientExtensions ).replace( ' ', '\n' ) + "\n\n";
infotext.sprintf( "%sGLX extensions:\n", infotext.ascii() );
infotext += QString( glxExtensions ).replace( ' ', '\n' ) + "\n\n";
infotext.sprintf( "%sOpenGL vendor string: %s\n", infotext.ascii(), glVendor );
infotext.sprintf( "%sOpenGL renderer string: %s\n", infotext.ascii(), glRenderer );
infotext.sprintf( "%sOpenGL version string: %s\n", infotext.ascii(), glVersion );
infotext.sprintf( "%sOpenGL extensions:\n", infotext.ascii() );
infotext += QString( glExtensions ).replace( ' ', '\n' ) + "\n\n";
infotext.sprintf( "%sGLU version: %s\n", infotext.ascii(), gluVersion );
infotext.sprintf( "%sGLU extensions:\n", infotext.ascii() );
infotext += QString( gluExtensions ).replace( ' ', '\n' ) + "\n\n";
}
//================================================================
int GLB_Query () {
//================================================================
/// GLB_Query display OpenGL-vendorstring (used by GUI_gl__)
char const *p1, *p2;
p1 = glXGetClientString (GLB_display, GLX_VENDOR);
if(!p1) return -1;
p2 = glXGetClientString(GLB_display, GLX_VERSION);
printf("OpenGL Vendor %s Version %s\n",p1,p2);
// p1 = glXGetClientString(GLB_display, GLX_EXTENSIONS);
// printf("Extensions: %s\n",p1);
return 0;
}
GLboolean glxewGetExtension (const char* name)
{
const GLubyte* start;
const GLubyte* end;
if (glXGetCurrentDisplay == NULL) return GL_FALSE;
start = (const GLubyte*)glXGetClientString(glXGetCurrentDisplay(), GLX_EXTENSIONS);
if (0 == start) return GL_FALSE;
end = start + _glewStrLen(start);
return _glewSearchExtension(name, start, end);
}
static int
GLXExtensionSupported(Display *dpy, const char *extension)
{
const char *s;
s = glXQueryExtensionsString(dpy, DefaultScreen(dpy));
if(s != NULL && check_ext_string(s, extension))
return 1;
s = glXGetClientString(dpy, GLX_EXTENSIONS);
if(s != NULL && check_ext_string(s, extension))
return 1;
return 0;
}
TAO_BEGIN
bool enableVSyncX11(QWidget *widget, bool enable)
// ----------------------------------------------------------------------------
// Enable or disable VSync, return true on success
// ----------------------------------------------------------------------------
{
static bool resolved = false;
typedef int (*setSwapIntervalFunc)(int interval);
static setSwapIntervalFunc set_fn = NULL;
if (!resolved)
{
#if QT_VERSION < 0x050000
const char *ext = glXGetClientString(widget->x11Info().display(),
GLX_EXTENSIONS);
QString extensions(ext);
if (extensions.contains("GLX_MESA_swap_control"))
{
set_fn = (setSwapIntervalFunc)
glXGetProcAddress((const GLubyte*) "glXSwapIntervalMESA");
}
else if (extensions.contains("GLX_SGI_swap_control"))
{
set_fn = (setSwapIntervalFunc)
glXGetProcAddress((const GLubyte*) "glXSwapIntervalSGI");
}
#else // QT5 has no easy access to the X11 dpy
(void) widget;
set_fn = (setSwapIntervalFunc)
glXGetProcAddress((const GLubyte*) "glXSwapIntervalMESA");
if (!set_fn)
set_fn = (setSwapIntervalFunc)
glXGetProcAddress((const GLubyte*) "glXSwapIntervalSGI");
#endif // QT5
resolved = true;
}
if (set_fn)
{
int swapInterval = enable ? 1 : 0;
if (!set_fn(swapInterval))
return true;
}
return false;
}
void QGLContext::swapBuffers() const
{
Q_D(const QGLContext);
if (!d->valid)
return;
if (!deviceIsPixmap()) {
int interval = d->glFormat.swapInterval();
if (interval > 0) {
typedef int (*qt_glXGetVideoSyncSGI)(uint *);
typedef int (*qt_glXWaitVideoSyncSGI)(int, int, uint *);
static qt_glXGetVideoSyncSGI glXGetVideoSyncSGI = 0;
static qt_glXWaitVideoSyncSGI glXWaitVideoSyncSGI = 0;
static bool resolved = false;
if (!resolved) {
QString glxExt = QString(QLatin1String(glXGetClientString(QX11Info::display(), GLX_EXTENSIONS)));
if (glxExt.contains(QLatin1String("GLX_SGI_video_sync"))) {
#if defined(Q_OS_LINUX) || defined(Q_OS_BSD4)
void *handle = dlopen(NULL, RTLD_LAZY);
if (handle) {
glXGetVideoSyncSGI = (qt_glXGetVideoSyncSGI) dlsym(handle, "glXGetVideoSyncSGI");
glXWaitVideoSyncSGI = (qt_glXWaitVideoSyncSGI) dlsym(handle, "glXWaitVideoSyncSGI");
dlclose(handle);
}
if (!glXGetVideoSyncSGI)
#endif
{
extern const QString qt_gl_library_name();
QLibrary lib(qt_gl_library_name());
glXGetVideoSyncSGI = (qt_glXGetVideoSyncSGI) lib.resolve("glXGetVideoSyncSGI");
glXWaitVideoSyncSGI = (qt_glXWaitVideoSyncSGI) lib.resolve("glXWaitVideoSyncSGI");
}
}
resolved = true;
}
if (glXGetVideoSyncSGI && glXWaitVideoSyncSGI) {
uint counter;
if (!glXGetVideoSyncSGI(&counter))
glXWaitVideoSyncSGI(interval + 1, (counter + interval) % (interval + 1), &counter);
}
}
glXSwapBuffers(qt_x11Info(d->paintDevice)->display(),
static_cast<QWidget *>(d->paintDevice)->winId());
}
}
DECLEXPORT(EGLDisplay) eglGetDisplay(EGLNativeDisplayType hDisplay)
{
Display *pDisplay;
if (!testValidDisplay(hDisplay))
return EGL_NO_DISPLAY;
if (!clearEGLError()) /* Set up our tls. */
return EGL_NO_DISPLAY;
if (hDisplay != EGL_DEFAULT_DISPLAY)
pDisplay = hDisplay;
else
{
pthread_once(&g_defaultDisplayOnce, defaultDisplayInitOnce);
pDisplay = g_pDefaultDisplay;
}
if (pDisplay && !strcmp(glXGetClientString(pDisplay, GLX_VENDOR), "Chromium"))
return (EGLDisplay) pDisplay;
return EGL_NO_DISPLAY;
}
static bool
test_glx_version(void)
{
int version = epoxy_glx_version(dpy, 0);
const char *version_string;
int ret;
int server_major, server_minor;
int client_major, client_minor;
int server, client, expected;
if (version < 13) {
fprintf(stderr,
"Reported GLX version %d, should be at least 13 "
"according to Linux GL ABI\n",
version);
return false;
}
version_string = glXQueryServerString(dpy, 0, GLX_VERSION);
ret = sscanf(version_string, "%d.%d", &server_major, &server_minor);
assert(ret == 2);
server = server_major * 10 + server_minor;
version_string = glXGetClientString(dpy, GLX_VERSION);
ret = sscanf(version_string, "%d.%d", &client_major, &client_minor);
assert(ret == 2);
client = client_major * 10 + client_minor;
if (client < server)
expected = client;
else
expected = server;
if (version != expected) {
fprintf(stderr,
"Reported GLX version %d, should be %d (%s)\n",
version, expected, version_string);
return false;
}
return true;
}
static int GLXExtensionSupported(Display *dpy, const char *extension)
{
const char *extensionsString, *client_extensions, *pos;
extensionsString = glXQueryExtensionsString(dpy, DefaultScreen(dpy));
client_extensions = glXGetClientString(dpy, GLX_EXTENSIONS);
pos = strstr(extensionsString, extension);
if (pos != NULL && (pos == extensionsString || pos[-1] == ' ') &&
(pos[strlen(extension)] == ' ' || pos[strlen(extension)] == '\0'))
return 1;
pos = strstr(client_extensions, extension);
if (pos != NULL && (pos == extensionsString || pos[-1] == ' ') &&
(pos[strlen(extension)] == ' ' || pos[strlen(extension)] == '\0'))
return 1;
return 0;
}
GLenum glxewContextInit (GLXEW_CONTEXT_ARG_DEF_LIST)
{
int major, minor;
const GLubyte* extStart;
const GLubyte* extEnd;
/* initialize core GLX 1.2 */
if (_glewInit_GLX_VERSION_1_2(GLEW_CONTEXT_ARG_VAR_INIT)) return GLEW_ERROR_GLX_VERSION_11_ONLY;
/* initialize flags */
CONST_CAST(GLXEW_VERSION_1_0) = GL_TRUE;
CONST_CAST(GLXEW_VERSION_1_1) = GL_TRUE;
CONST_CAST(GLXEW_VERSION_1_2) = GL_TRUE;
CONST_CAST(GLXEW_VERSION_1_3) = GL_TRUE;
CONST_CAST(GLXEW_VERSION_1_4) = GL_TRUE;
/* query GLX version */
glXQueryVersion(glXGetCurrentDisplay(), &major, &minor);
if (major == 1 && minor <= 3)
{
switch (minor)
{
case 3:
CONST_CAST(GLXEW_VERSION_1_4) = GL_FALSE;
break;
case 2:
CONST_CAST(GLXEW_VERSION_1_4) = GL_FALSE;
CONST_CAST(GLXEW_VERSION_1_3) = GL_FALSE;
break;
default:
return GLEW_ERROR_GLX_VERSION_11_ONLY;
break;
}
}
/* query GLX extension string */
extStart = 0;
if (glXGetCurrentDisplay != NULL)
extStart = (const GLubyte*)glXGetClientString(glXGetCurrentDisplay(), GLX_EXTENSIONS);
if (extStart == 0)
extStart = (const GLubyte *)"";
extEnd = extStart + _glewStrLen(extStart);
void glx_features()
{
#ifdef GLLOADER_GLX
char const * str = glXGetClientString(glXGetCurrentDisplay(), GLX_EXTENSIONS);
if (str != NULL)
{
std::vector<std::string> glx_exts = split(str);
glx_exts.erase(std::remove(glx_exts.begin(), glx_exts.end(), ""), glx_exts.end());
features_.insert(features_.end(), glx_exts.begin(), glx_exts.end());
int major, minor;
glx_version(major, minor);
int const ver_code = major * 10 + minor;
if (ver_code >= 10)
{
features_.push_back("GLX_VERSION_1_0");
}
if (ver_code >= 11)
{
features_.push_back("GLX_VERSION_1_1");
}
if (ver_code >= 12)
{
features_.push_back("GLX_VERSION_1_2");
}
if (ver_code >= 13)
{
features_.push_back("GLX_VERSION_1_3");
}
if (ver_code >= 14)
{
features_.push_back("GLX_VERSION_1_4");
}
}
#endif // GLLOADER_GLX
}
int main( int argc, char **argv )
{
Display *display;
int err, event, server_major, server_minor, client_major, client_minor;
if ( argc > 1 )
display = XOpenDisplay( argv[1] );
else
display = XOpenDisplay( "" );
if ( !display )
{
fprintf( stderr, "FATAL: Can't connect to X Server\n" );
fprintf( stdout, "fatal\n" );
exit(0);
}
if ( glXQueryExtension( display, &err, &event ) )
{
sscanf( glXQueryServerString( display, 0, GLX_VERSION ),
"%d.%d", &server_major, &server_minor );
sscanf( glXGetClientString( display, GLX_VERSION ),
"%d.%d", &client_major, &client_minor );
if ( server_major != client_major || server_minor != client_minor )
{
fprintf( stdout, "glx_mismatch\n" );
} else
fprintf( stdout, "success\n" );
} else
fprintf( stdout, "no_glx_found\n" );
XCloseDisplay( display );
return 1;
}
static _GLFWfbconfig* getFBConfigs(_GLFWwindow* window, unsigned int* found)
{
GLXFBConfig* fbconfigs;
_GLFWfbconfig* result;
int i, count = 0;
const char* vendor;
GLboolean trustWindowBit = GL_TRUE;
*found = 0;
if (_glfwLibrary.GLX.majorVersion == 1 && _glfwLibrary.GLX.minorVersion < 3)
{
if (!_glfwLibrary.GLX.SGIX_fbconfig)
{
_glfwSetError(GLFW_API_UNAVAILABLE,
"GLX: GLXFBConfig support not found");
return NULL;
}
}
vendor = glXGetClientString(_glfwLibrary.X11.display, GLX_VENDOR);
if (strcmp(vendor, "Chromium") == 0)
{
// HACK: This is a (hopefully temporary) workaround for Chromium
// (VirtualBox GL) not setting the window bit on any GLXFBConfigs
trustWindowBit = GL_FALSE;
}
if (_glfwLibrary.GLX.SGIX_fbconfig)
{
fbconfigs = _glfwLibrary.GLX.ChooseFBConfigSGIX(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
NULL,
&count);
if (!count)
{
_glfwSetError(GLFW_API_UNAVAILABLE,
"GLX: No GLXFBConfigs returned");
return NULL;
}
}
else
{
fbconfigs = glXGetFBConfigs(_glfwLibrary.X11.display,
_glfwLibrary.X11.screen,
&count);
if (!count)
{
_glfwSetError(GLFW_API_UNAVAILABLE,
"GLX: No GLXFBConfigs returned");
return NULL;
}
}
result = (_GLFWfbconfig*) malloc(sizeof(_GLFWfbconfig) * count);
if (!result)
{
_glfwSetError(GLFW_OUT_OF_MEMORY, NULL);
return NULL;
}
for (i = 0; i < count; i++)
{
_GLFWfbconfig* f = result + *found;
if (!getFBConfigAttrib(window, fbconfigs[i], GLX_DOUBLEBUFFER) ||
!getFBConfigAttrib(window, fbconfigs[i], GLX_VISUAL_ID))
{
// Only consider double-buffered GLXFBConfigs with associated visuals
continue;
}
if (!(getFBConfigAttrib(window,
fbconfigs[i],
GLX_RENDER_TYPE) & GLX_RGBA_BIT))
{
// Only consider RGBA GLXFBConfigs
continue;
}
if (!(getFBConfigAttrib(window, fbconfigs[i], GLX_DRAWABLE_TYPE) & GLX_WINDOW_BIT))
{
if (trustWindowBit)
{
// Only consider window GLXFBConfigs
continue;
}
}
f->redBits = getFBConfigAttrib(window, fbconfigs[i], GLX_RED_SIZE);
f->greenBits = getFBConfigAttrib(window, fbconfigs[i], GLX_GREEN_SIZE);
f->blueBits = getFBConfigAttrib(window, fbconfigs[i], GLX_BLUE_SIZE);
f->alphaBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ALPHA_SIZE);
f->depthBits = getFBConfigAttrib(window, fbconfigs[i], GLX_DEPTH_SIZE);
f->stencilBits = getFBConfigAttrib(window, fbconfigs[i], GLX_STENCIL_SIZE);
f->accumRedBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ACCUM_RED_SIZE);
f->accumGreenBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ACCUM_GREEN_SIZE);
f->accumBlueBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ACCUM_BLUE_SIZE);
f->accumAlphaBits = getFBConfigAttrib(window, fbconfigs[i], GLX_ACCUM_ALPHA_SIZE);
f->auxBuffers = getFBConfigAttrib(window, fbconfigs[i], GLX_AUX_BUFFERS);
f->stereo = getFBConfigAttrib(window, fbconfigs[i], GLX_STEREO);
if (_glfwLibrary.GLX.ARB_multisample)
f->samples = getFBConfigAttrib(window, fbconfigs[i], GLX_SAMPLES);
else
f->samples = 0;
if (_glfwLibrary.GLX.ARB_framebuffer_sRGB)
f->sRGB = getFBConfigAttrib(window, fbconfigs[i], GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB);
else
f->sRGB = GL_FALSE;
f->platformID = (GLFWintptr) getFBConfigAttrib(window, fbconfigs[i], GLX_FBCONFIG_ID);
(*found)++;
}
XFree(fbconfigs);
return result;
}
void print_screen_info(Display *dpy, int scrnum)
{
Window win;
int attribSingle[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
None };
int attribDouble[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
None };
XSetWindowAttributes attr;
unsigned long mask;
Window root;
GLXContext ctx;
XVisualInfo *visinfo;
int width = 100, height = 100;
root = RootWindow(dpy, scrnum);
visinfo = glXChooseVisual(dpy, scrnum, attribSingle);
if (!visinfo) {
visinfo = glXChooseVisual(dpy, scrnum, attribDouble);
if (!visinfo) {
fprintf(stderr, "Error: couldn't find RGB GLX visual\n");
return;
}
}
attr.background_pixel = 0;
attr.border_pixel = 0;
attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone);
attr.event_mask = StructureNotifyMask | ExposureMask;
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
win = XCreateWindow(dpy, root, 0, 0, width, height,
0, visinfo->depth, InputOutput,
visinfo->visual, mask, &attr);
ctx = glXCreateContext( dpy, visinfo, NULL, True );
if (!ctx) {
fprintf(stderr, "Error: glXCreateContext failed\n");
XDestroyWindow(dpy, win);
return;
}
if (glXMakeCurrent(dpy, win, ctx)) {
const char *serverVendor = glXQueryServerString(dpy, scrnum, GLX_VENDOR);
const char *serverVersion = glXQueryServerString(dpy, scrnum, GLX_VERSION);
const char *serverExtensions = glXQueryServerString(dpy, scrnum, GLX_EXTENSIONS);
const char *clientVendor = glXGetClientString(dpy, GLX_VENDOR);
const char *clientVersion = glXGetClientString(dpy, GLX_VERSION);
const char *clientExtensions = glXGetClientString(dpy, GLX_EXTENSIONS);
const char *glxExtensions = glXQueryExtensionsString(dpy, scrnum);
const char *glVendor = (const char *) glGetString(GL_VENDOR);
const char *glRenderer = (const char *) glGetString(GL_RENDERER);
const char *glVersion = (const char *) glGetString(GL_VERSION);
const char *glExtensions = (const char *) glGetString(GL_EXTENSIONS);
printf("display: %s screen:%d\n", DisplayString(dpy), scrnum);
printf("direct rendering: %s\n", glXIsDirect(dpy, ctx) ? "Yes" : "No");
printf("server glx vendor string: %s\n", serverVendor);
printf("server glx version string: %s\n", serverVersion);
printf("server glx extensions:\n");
print_extension_list(serverExtensions);
printf("client glx vendor string: %s\n", clientVendor);
printf("client glx version string: %s\n", clientVersion);
printf("client glx extensions:\n");
print_extension_list(clientExtensions);
printf("GLX extensions:\n");
print_extension_list(glxExtensions);
printf("OpenGL vendor string: %s\n", glVendor);
printf("OpenGL renderer string: %s\n", glRenderer);
printf("OpenGL version string: %s\n", glVersion);
printf("OpenGL extensions:\n");
print_extension_list(glExtensions);
}
else {
fprintf(stderr, "Error: glXMakeCurrent failed\n");
}
glXDestroyContext(dpy, ctx);
XDestroyWindow(dpy, win);
}
void GLX_EXT_import_context_setup(void)
{
const char *const names[] = {
"glXGetCurrentDisplayEXT",
"glXQueryContextInfoEXT",
"glXGetContextIDEXT",
"glXImportContextEXT",
"glXFreeContextEXT"
};
__GLXextFuncPtr *procedures[ARRAY_SIZE(names)] = {
(__GLXextFuncPtr *) & __piglit_glXGetCurrentDisplayEXT,
(__GLXextFuncPtr *) & __piglit_glXQueryContextInfoEXT,
(__GLXextFuncPtr *) & __piglit_glXGetContextIDEXT,
(__GLXextFuncPtr *) & __piglit_glXImportContextEXT,
(__GLXextFuncPtr *) & __piglit_glXFreeContextEXT
};
const char *vendor;
dpy = piglit_get_glx_display();
/* NVIDIA incorrectly only list the extension in the client
* extenstions list. If the extension is available for applications
* to use, it is supposed to be included in the list returned by
* glXQueryExtensionsString.
*
* The glXImportContextEXT manual page is somewhat clear on this
* topic:
*
* "If _glxextstring(EXT_import_context) is included in the string
* returned by glXQueryExtensionsString, when called with argument
* GLX_EXTENSIONS, extension EXT_import_context is supported."
*
* The text is a little weird because the only parameters to
* glXQueryExtensionsString are the display and the screen.
*/
vendor = glXGetClientString(dpy, GLX_VENDOR);
if (strcmp("NVIDIA Corporation", vendor) == 0) {
const char *const client_extensions =
glXGetClientString(dpy, GLX_EXTENSIONS);
if (!piglit_is_extension_in_string(client_extensions,
"GLX_EXT_import_context")) {
fprintf(stderr,
"Test requires GLX_EXT_import_context.\n");
piglit_report_result(PIGLIT_SKIP);
}
} else {
piglit_require_glx_extension(dpy, "GLX_EXT_import_context");
}
piglit_glx_get_all_proc_addresses(procedures, names, ARRAY_SIZE(names));
visinfo = piglit_get_glx_visual(dpy);
directCtx = glXCreateContext(dpy, visinfo, NULL, True);
if (directCtx == NULL) {
fprintf(stderr,
"Could not create initial direct-rendering context.\n");
piglit_report_result(PIGLIT_FAIL);
}
if (!glXIsDirect(dpy, directCtx)) {
glXDestroyContext(dpy, directCtx);
directCtx = NULL;
}
indirectCtx = glXCreateContext(dpy, visinfo, NULL, False);
if (indirectCtx == NULL) {
fprintf(stderr,
"Could not create initial indirect-rendering "
"context.\n");
piglit_report_result(PIGLIT_FAIL);
}
piglit_glx_get_error(dpy, NULL);
old_handler = XSetErrorHandler(x_error_handler);
}
void GraphicsManager::updatePlanformExtensions()
{
SDL_SysWMinfo info;
SDL_VERSION(&info.version);
if (SDL::getWindowWMInfo(mainGraphics->getWindow(), &info))
{
#ifdef WIN32
if (!mwglGetExtensionsString)
return;
HDC hdc = GetDC(info.window);
if (hdc)
{
const char *const extensions = mwglGetExtensionsString(hdc);
if (extensions)
{
logger->log1("wGL extensions:");
logger->log1(extensions);
splitToStringSet(mPlatformExtensions, extensions, ' ');
}
}
#elif defined USE_X11
Display *const display = info.info.x11.display;
if (display)
{
Screen *const screen = XDefaultScreenOfDisplay(display);
if (!screen)
return;
const int screenNum = XScreenNumberOfScreen(screen);
const char *const extensions = glXQueryExtensionsString(
display, screenNum);
if (extensions)
{
logger->log1("glx extensions:");
logger->log1(extensions);
splitToStringSet(mPlatformExtensions, extensions, ' ');
}
glXQueryVersion(display, &mPlatformMajor, &mPlatformMinor);
if (checkPlatformVersion(1, 1))
{
const char *const vendor1 = glXQueryServerString(
display, screenNum, GLX_VENDOR);
if (vendor1)
logger->log("glx server vendor: %s", vendor1);
const char *const version1 = glXQueryServerString(
display, screenNum, GLX_VERSION);
if (version1)
logger->log("glx server version: %s", version1);
const char *const extensions1 = glXQueryServerString(
display, screenNum, GLX_EXTENSIONS);
if (extensions1)
{
logger->log1("glx server extensions:");
logger->log1(extensions1);
}
const char *const vendor2 = glXGetClientString(
display, GLX_VENDOR);
if (vendor2)
logger->log("glx client vendor: %s", vendor2);
const char *const version2 = glXGetClientString(
display, GLX_VERSION);
if (version2)
logger->log("glx client version: %s", version2);
const char *const extensions2 = glXGetClientString(
display, GLX_EXTENSIONS);
if (extensions2)
{
logger->log1("glx client extensions:");
logger->log1(extensions2);
}
}
logger->log("width=%d", DisplayWidth(display, screenNum));
}
#endif
}
}
// Return the GLXFBConfig most closely matching the specified hints
//
static GLFWbool chooseGLXFBConfig(const _GLFWfbconfig* desired, GLXFBConfig* result)
{
GLXFBConfig* nativeConfigs;
_GLFWfbconfig* usableConfigs;
const _GLFWfbconfig* closest;
int i, nativeCount, usableCount;
const char* vendor;
GLFWbool trustWindowBit = GLFW_TRUE;
// HACK: This is a (hopefully temporary) workaround for Chromium
// (VirtualBox GL) not setting the window bit on any GLXFBConfigs
vendor = glXGetClientString(_glfw.x11.display, GLX_VENDOR);
if (strcmp(vendor, "Chromium") == 0)
trustWindowBit = GLFW_FALSE;
nativeConfigs =
glXGetFBConfigs(_glfw.x11.display, _glfw.x11.screen, &nativeCount);
if (!nativeCount)
{
_glfwInputError(GLFW_API_UNAVAILABLE, "GLX: No GLXFBConfigs returned");
return GLFW_FALSE;
}
usableConfigs = calloc(nativeCount, sizeof(_GLFWfbconfig));
usableCount = 0;
for (i = 0; i < nativeCount; i++)
{
const GLXFBConfig n = nativeConfigs[i];
_GLFWfbconfig* u = usableConfigs + usableCount;
// Only consider RGBA GLXFBConfigs
if (!(getGLXFBConfigAttrib(n, GLX_RENDER_TYPE) & GLX_RGBA_BIT))
continue;
// Only consider window GLXFBConfigs
if (!(getGLXFBConfigAttrib(n, GLX_DRAWABLE_TYPE) & GLX_WINDOW_BIT))
{
if (trustWindowBit)
continue;
}
u->redBits = getGLXFBConfigAttrib(n, GLX_RED_SIZE);
u->greenBits = getGLXFBConfigAttrib(n, GLX_GREEN_SIZE);
u->blueBits = getGLXFBConfigAttrib(n, GLX_BLUE_SIZE);
u->alphaBits = getGLXFBConfigAttrib(n, GLX_ALPHA_SIZE);
u->depthBits = getGLXFBConfigAttrib(n, GLX_DEPTH_SIZE);
u->stencilBits = getGLXFBConfigAttrib(n, GLX_STENCIL_SIZE);
u->accumRedBits = getGLXFBConfigAttrib(n, GLX_ACCUM_RED_SIZE);
u->accumGreenBits = getGLXFBConfigAttrib(n, GLX_ACCUM_GREEN_SIZE);
u->accumBlueBits = getGLXFBConfigAttrib(n, GLX_ACCUM_BLUE_SIZE);
u->accumAlphaBits = getGLXFBConfigAttrib(n, GLX_ACCUM_ALPHA_SIZE);
u->auxBuffers = getGLXFBConfigAttrib(n, GLX_AUX_BUFFERS);
if (getGLXFBConfigAttrib(n, GLX_STEREO))
u->stereo = GLFW_TRUE;
if (getGLXFBConfigAttrib(n, GLX_DOUBLEBUFFER))
u->doublebuffer = GLFW_TRUE;
if (_glfw.glx.ARB_multisample)
u->samples = getGLXFBConfigAttrib(n, GLX_SAMPLES);
if (_glfw.glx.ARB_framebuffer_sRGB || _glfw.glx.EXT_framebuffer_sRGB)
u->sRGB = getGLXFBConfigAttrib(n, GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB);
u->handle = (uintptr_t) n;
usableCount++;
}
closest = _glfwChooseFBConfig(desired, usableConfigs, usableCount);
if (closest)
*result = (GLXFBConfig) closest->handle;
XFree(nativeConfigs);
free(usableConfigs);
return closest != NULL;
}
void GlTraceFilterModel::checkExtensions()
{
const GLubyte *extensionString, *versionString;
int supportedMajor, supportedMinor;
QGLWidget w;
w.makeCurrent();
extensionString = glGetString(GL_EXTENSIONS);
versionString = glGetString(GL_VERSION);
supportedMajor = versionString[0] - '0';
supportedMinor = versionString[2] - '0';
QByteArray extensions = QByteArray(
reinterpret_cast<const char*>(extensionString));
#ifdef GLSLDB_WIN
PFNWGLGETEXTENSIONSSTRINGARBPROC wglGetExtensionsStringARB = 0;
wglGetExtensionsStringARB = (PFNWGLGETEXTENSIONSSTRINGARBPROC)wglGetProcAddress("wglGetExtensionsStringARB");
if(wglGetExtensionsStringARB) {
extensions.append(' ');
extensions.append(QByteArray(reinterpret_cast<const char*>(wglGetExtensionsStringARB(wglGetCurrentDC()))));
}
#elif defined(GLSLDB_LINUX)
int supportedXMajor, supportedXMinor;
const char *versionXString;
versionXString = glXQueryServerString(XOpenDisplay(NULL), 0, GLX_VERSION);
supportedXMajor = versionXString[0] - '0';
supportedXMinor = versionXString[2] - '0';
extensions.append(' ');
extensions.append(
QByteArray(
reinterpret_cast<const char*>(glXQueryServerString(
XOpenDisplay(NULL), 0, GLX_EXTENSIONS))));
extensions.append(' ');
extensions.append(
QByteArray(
reinterpret_cast<const char*>(glXGetClientString(
XOpenDisplay(NULL), GLX_EXTENSIONS))));
extensions.append(' ');
extensions.append(
QByteArray(
reinterpret_cast<const char*>(glXQueryExtensionsString(
XOpenDisplay(NULL), 0))));
#elif defined(GLSLDB_OSX)
#warning "FIXME: any OSX specific extensions wee need to add here?"
#endif
QList<QByteArray> extList = extensions.split(' ');
for (int i = 0; i < this->rootItem->childCount(); i++) {
GlTraceFilterItem *item = this->rootItem->child(i);
if (strstr(item->function->extname, "GL_VERSION_")
== item->function->extname) {
int major, minor;
major = item->function->extname[11] - '0';
minor = item->function->extname[13] - '0';
if (major < supportedMajor
|| (major == supportedMajor && minor <= supportedMinor)) {
item->isSupported = true;
} else {
item->isSupported = false;
}
}
#if defined(_WIN32)
else if (strstr(item->function->extname, "WGL_VERSION_") == item->function->extname) {
item->isSupported = true;
}
#elif defined(GLSLDB_LINUX)
else if (strstr(item->function->extname, "GLX_VERSION_")
== item->function->extname) {
int major, minor;
major = item->function->extname[12] - '0';
minor = item->function->extname[14] - '0';
if (major < supportedXMajor
|| (major == supportedXMajor && minor <= supportedXMinor)) {
item->isSupported = true;
} else {
item->isSupported = false;
}
}
#elif defined(GLSLDB_OSX)
#warning "FIXME: any OSX specific extensions wee need to add here?"
#endif
else {
item->isSupported = extList.contains(item->function->extname);
}
}
}
static void
print_screen_info(Display *dpy, int scrnum, Bool allowDirect, GLboolean limits)
{
Window win;
int attribSingle[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
None };
int attribDouble[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
None };
XSetWindowAttributes attr;
unsigned long mask;
Window root;
GLXContext ctx;
XVisualInfo *visinfo;
int width = 100, height = 100;
root = RootWindow(dpy, scrnum);
visinfo = glXChooseVisual(dpy, scrnum, attribSingle);
if (!visinfo) {
visinfo = glXChooseVisual(dpy, scrnum, attribDouble);
if (!visinfo) {
fprintf(stderr, "Error: couldn't find RGB GLX visual\n");
return;
}
}
attr.background_pixel = 0;
attr.border_pixel = 0;
attr.colormap = XCreateColormap(dpy, root, visinfo->visual, AllocNone);
attr.event_mask = StructureNotifyMask | ExposureMask;
mask = CWBackPixel | CWBorderPixel | CWColormap | CWEventMask;
win = XCreateWindow(dpy, root, 0, 0, width, height,
0, visinfo->depth, InputOutput,
visinfo->visual, mask, &attr);
ctx = glXCreateContext( dpy, visinfo, NULL, allowDirect );
if (!ctx) {
fprintf(stderr, "Error: glXCreateContext failed\n");
XDestroyWindow(dpy, win);
return;
}
if (glXMakeCurrent(dpy, win, ctx)) {
const char *serverVendor = glXQueryServerString(dpy, scrnum, GLX_VENDOR);
const char *serverVersion = glXQueryServerString(dpy, scrnum, GLX_VERSION);
const char *serverExtensions = glXQueryServerString(dpy, scrnum, GLX_EXTENSIONS);
const char *clientVendor = glXGetClientString(dpy, GLX_VENDOR);
const char *clientVersion = glXGetClientString(dpy, GLX_VERSION);
const char *clientExtensions = glXGetClientString(dpy, GLX_EXTENSIONS);
const char *glxExtensions = glXQueryExtensionsString(dpy, scrnum);
const char *glVendor = (const char *) glGetString(GL_VENDOR);
const char *glRenderer = (const char *) glGetString(GL_RENDERER);
const char *glVersion = (const char *) glGetString(GL_VERSION);
const char *glExtensions = (const char *) glGetString(GL_EXTENSIONS);
int glxVersionMajor;
int glxVersionMinor;
char *displayName = NULL;
char *colon = NULL, *period = NULL;
#ifdef DO_GLU
const char *gluVersion = (const char *) gluGetString(GLU_VERSION);
const char *gluExtensions = (const char *) gluGetString(GLU_EXTENSIONS);
#endif
if (! glXQueryVersion( dpy, & glxVersionMajor, & glxVersionMinor )) {
fprintf(stderr, "Error: glXQueryVersion failed\n");
exit(1);
}
/* Strip the screen number from the display name, if present. */
if (!(displayName = (char *) malloc(strlen(DisplayString(dpy)) + 1))) {
fprintf(stderr, "Error: malloc() failed\n");
exit(1);
}
strcpy(displayName, DisplayString(dpy));
colon = strrchr(displayName, ':');
if (colon) {
period = strchr(colon, '.');
if (period)
*period = '\0';
}
printf("display: %s screen: %d\n", displayName, scrnum);
free(displayName);
printf("direct rendering: %s\n", glXIsDirect(dpy, ctx) ? "Yes" : "No");
printf("server glx vendor string: %s\n", serverVendor);
printf("server glx version string: %s\n", serverVersion);
printf("server glx extensions:\n");
print_extension_list(serverExtensions);
printf("client glx vendor string: %s\n", clientVendor);
printf("client glx version string: %s\n", clientVersion);
printf("client glx extensions:\n");
print_extension_list(clientExtensions);
printf("GLX version: %u.%u\n", glxVersionMajor, glxVersionMinor);
printf("GLX extensions:\n");
print_extension_list(glxExtensions);
printf("OpenGL vendor string: %s\n", glVendor);
printf("OpenGL renderer string: %s\n", glRenderer);
printf("OpenGL version string: %s\n", glVersion);
printf("OpenGL extensions:\n");
print_extension_list(glExtensions);
if (limits)
print_limits();
#ifdef DO_GLU
printf("glu version: %s\n", gluVersion);
printf("glu extensions:\n");
print_extension_list(gluExtensions);
#endif
}
else {
fprintf(stderr, "Error: glXMakeCurrent failed\n");
}
glXDestroyContext(dpy, ctx);
XDestroyWindow(dpy, win);
}
static int
setup(int width, int height)
{
#if USE_OSMESA
const size_t size = width * height * 4;
pbuffer = malloc(size);
memset(pbuffer, 0x21, size);
context = OSMesaCreateContextExt(GL_RGBA, 24, 0, 0, 0);
OSMesaMakeCurrent(context, (void *)pbuffer, GL_UNSIGNED_BYTE, width, height);
return 0;
#elif USE_CGL
/* OpenGL PBuffer initialization: OSX specific */
CGLPixelFormatAttribute pfattr[] = {
kCGLPFAPBuffer,
(CGLPixelFormatAttribute)0
};
CGLPixelFormatObj pixformat;
GLint npixels;
int e;
e = CGLChoosePixelFormat(pfattr, &pixformat, &npixels);
if (e != kCGLNoError) {
fprintf(stderr, "CGLChoosePixelFormat failed, err %d\n", e);
return e;
}
e = CGLCreateContext(pixformat, 0, &context);
if (e != kCGLNoError) {
fprintf(stderr, "CGLChoosePixelFormat failed, err %d\n", e);
return e;
}
e = CGLDestroyPixelFormat(pixformat);
if (e != kCGLNoError) {
fprintf(stderr, "CGLDestroyPixelFormat failed, err %d\n", e);
return e;
}
e = CGLSetCurrentContext(context);
if (e != kCGLNoError) {
fprintf(stderr, "CGLSetCurrentContext failed, err %d\n", e);
return e;
}
e = CGLCreatePBuffer(width, height, GL_TEXTURE_2D, GL_RGB, 0, &pbuffer);
if (e != kCGLNoError) {
fprintf(stderr, "CGLCreatePBuffer failed, err %d\n", e);
return e;
}
e = CGLSetPBuffer(context, pbuffer, 0, 0, 0);
if (e != kCGLNoError) {
fprintf(stderr, "CGLSetPBuffer failed, err %d\n", e);
return e;
}
return (int)kCGLNoError;
#elif USE_GLX
int result = (-1);
char *glxversion;
int screen;
GLXFBConfig *fbConfigs = NULL;
GLXFBConfig chosenFBConfig;
GLXFBConfig fbconfig = 0;
GLXPbuffer pbuffer = None;
int nConfigs;
int fbconfigid;
int fbAttribs[] = {
GLX_RENDER_TYPE, GLX_RGBA_BIT,
GLX_DEPTH_SIZE, 1,
GLX_DRAWABLE_TYPE, GLX_PIXMAP_BIT | GLX_PBUFFER_BIT,
None
};
int pbAttribs[] = {
GLX_PBUFFER_WIDTH, 0,
GLX_PBUFFER_HEIGHT, 0,
GLX_LARGEST_PBUFFER, False,
GLX_PRESERVED_CONTENTS, False,
None
};
/* Open the X display */
display = XOpenDisplay(NULL);
if (!display) {
fprintf(stderr, "Error: couldn't open default X display.\n");
goto end;
}
/* Get default screen */
screen = DefaultScreen(display);
glxversion = (char *) glXGetClientString(display, GLX_VERSION);
if (!(strstr(glxversion, "1.3") || strstr(glxversion, "1.4"))) {
goto end;
}
glxversion = (char *) glXQueryServerString(display, screen, GLX_VERSION);
if (!(strstr(glxversion, "1.3") || strstr(glxversion, "1.4"))) {
goto end;
}
/* Create Pbuffer */
pbAttribs[1] = width;
pbAttribs[3] = height;
fbConfigs = glXChooseFBConfig(display, screen, fbAttribs, &nConfigs);
if (0 == nConfigs || !fbConfigs) {
fprintf(stderr, "Error: glxChooseFBConfig failed\n");
XFree(fbConfigs);
goto end;
}
chosenFBConfig = fbConfigs[0];
glXGetFBConfigAttrib(display, chosenFBConfig, GLX_FBCONFIG_ID, &fbconfigid);
/* Create the pbuffer using first fbConfig in the list that works. */
pbuffer = glXCreatePbuffer(display, chosenFBConfig, pbAttribs);
if (pbuffer) {
fbconfig = chosenFBConfig;
}
XFree(fbConfigs);
if (pbuffer == None) {
fprintf(stderr, "Error: couldn't create pbuffer\n");
goto end;
}
/* Create GLX context */
context = glXCreateNewContext(display, fbconfig, GLX_RGBA_TYPE, NULL, True);
if (!context) {
fprintf(stderr, "Error: Couldn't create GLXContext\n");
goto end;
}
/* Bind context to pbuffer */
if (!glXMakeCurrent(display, pbuffer, context)) {
fprintf(stderr, "Error: glXMakeCurrent failed\n");
goto end;
}
result = 0;
end:
if (fbConfigs)
XFree(fbConfigs);
if (display)
XCloseDisplay(display);
return result;
#else
/* TODO: pbuffer initialization */
return 0;
#endif
}
bool QGLContext::chooseContext(const QGLContext* shareContext)
{
Q_D(QGLContext);
const QX11Info *xinfo = qt_x11Info(d->paintDevice);
Display* disp = xinfo->display();
d->vi = chooseVisual();
if (!d->vi)
return false;
if (deviceIsPixmap() &&
(((XVisualInfo*)d->vi)->depth != xinfo->depth() ||
((XVisualInfo*)d->vi)->screen != xinfo->screen()))
{
XFree(d->vi);
XVisualInfo appVisInfo;
memset(&appVisInfo, 0, sizeof(XVisualInfo));
appVisInfo.visualid = XVisualIDFromVisual((Visual *) xinfo->visual());
appVisInfo.screen = xinfo->screen();
int nvis;
d->vi = XGetVisualInfo(disp, VisualIDMask | VisualScreenMask, &appVisInfo, &nvis);
if (!d->vi)
return false;
int useGL;
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_USE_GL, &useGL);
if (!useGL)
return false; //# Chickening out already...
}
int res;
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_LEVEL, &res);
d->glFormat.setPlane(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_DOUBLEBUFFER, &res);
d->glFormat.setDoubleBuffer(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_DEPTH_SIZE, &res);
d->glFormat.setDepth(res);
if (d->glFormat.depth())
d->glFormat.setDepthBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_RGBA, &res);
d->glFormat.setRgba(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_RED_SIZE, &res);
d->glFormat.setRedBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_GREEN_SIZE, &res);
d->glFormat.setGreenBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_BLUE_SIZE, &res);
d->glFormat.setBlueBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_ALPHA_SIZE, &res);
d->glFormat.setAlpha(res);
if (d->glFormat.alpha())
d->glFormat.setAlphaBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_ACCUM_RED_SIZE, &res);
d->glFormat.setAccum(res);
if (d->glFormat.accum())
d->glFormat.setAccumBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_STENCIL_SIZE, &res);
d->glFormat.setStencil(res);
if (d->glFormat.stencil())
d->glFormat.setStencilBufferSize(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_STEREO, &res);
d->glFormat.setStereo(res);
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_SAMPLE_BUFFERS_ARB, &res);
d->glFormat.setSampleBuffers(res);
if (d->glFormat.sampleBuffers()) {
glXGetConfig(disp, (XVisualInfo*)d->vi, GLX_SAMPLES_ARB, &res);
d->glFormat.setSamples(res);
}
Bool direct = format().directRendering() ? True : False;
if (shareContext &&
(!shareContext->isValid() || !shareContext->d_func()->cx)) {
qWarning("QGLContext::chooseContext(): Cannot share with invalid context");
shareContext = 0;
}
// 1. Sharing between rgba and color-index will give wrong colors.
// 2. Contexts cannot be shared btw. direct/non-direct renderers.
// 3. Pixmaps cannot share contexts that are set up for direct rendering.
// 4. If the contexts are not created on the same screen, they can't be shared
if (shareContext
&& (format().rgba() != shareContext->format().rgba()
|| (deviceIsPixmap() && glXIsDirect(disp, (GLXContext)shareContext->d_func()->cx))
|| (shareContext->d_func()->screen != xinfo->screen())))
{
shareContext = 0;
}
d->cx = 0;
if (shareContext) {
d->cx = glXCreateContext(disp, (XVisualInfo *)d->vi,
(GLXContext)shareContext->d_func()->cx, direct);
d->screen = ((XVisualInfo*)d->vi)->screen;
if (d->cx) {
QGLContext *share = const_cast<QGLContext *>(shareContext);
d->sharing = true;
share->d_func()->sharing = true;
}
}
if (!d->cx) {
d->cx = glXCreateContext(disp, (XVisualInfo *)d->vi, NULL, direct);
d->screen = ((XVisualInfo*)d->vi)->screen;
}
if (!d->cx)
return false;
d->glFormat.setDirectRendering(glXIsDirect(disp, (GLXContext)d->cx));
if (deviceIsPixmap()) {
#if defined(GLX_MESA_pixmap_colormap) && defined(QGL_USE_MESA_EXT)
d->gpm = glXCreateGLXPixmapMESA(disp, (XVisualInfo *)d->vi,
qt_x11Handle(d->paintDevice),
qt_gl_choose_cmap(disp, (XVisualInfo *)d->vi));
#else
d->gpm = (quint32)glXCreateGLXPixmap(disp, (XVisualInfo *)d->vi,
qt_x11Handle(d->paintDevice));
#endif
if (!d->gpm)
return false;
}
QString glxExt = QString(QLatin1String(glXGetClientString(QX11Info::display(), GLX_EXTENSIONS)));
if (glxExt.contains(QLatin1String("GLX_SGI_video_sync"))) {
if (d->glFormat.swapInterval() == -1)
d->glFormat.setSwapInterval(0);
} else {
d->glFormat.setSwapInterval(-1);
}
return true;
}
void PBuffer::initialise()
{
/// Smaller dimensions are not sane
if(mWidth < 64)
mWidth = 64;
if(mHeight < 64)
mHeight = 64;
Display *dpy = GLEngine::getInstance().getDisplay();
GLXContext context = GLEngine::getInstance().getSharedContext();
int screen = DefaultScreen(dpy);
/// Find out which extension to use for floating point
/// Possible floating point extensions, in order of preference
#define RTF_NONE 0
#define RTF_NV 1 /** GLX_NV_float_buffer */
#define RTF_ATI 2 /** GLX_ATI_pixel_format_float */
#define RTF_ARB 3 /** GLX_ARB_fbconfig_float */
int floatBuffer = RTF_NONE;
if(mIsFloat)
{
/// Query supported float buffer extensions
/// Choose the best one
std::stringstream ext;
std::string instr;
ext << glXQueryExtensionsString(dpy, screen) << " " << glXGetClientString(dpy, GLX_EXTENSIONS);
while(ext >> instr)
{
if(instr == "GLX_NV_float_buffer" && floatBuffer<RTF_NV)
floatBuffer = RTF_NV;
if(instr == "GLX_ATI_pixel_format_float" && floatBuffer<RTF_ATI)
floatBuffer = RTF_ATI;
if(instr == "GLX_ARB_fbconfig_float" && floatBuffer<RTF_ARB)
floatBuffer = RTF_ARB;
}
if(floatBuffer == RTF_NONE)
{
GPGPU_EXCEPT(ERR_RENDERSYSTEM, "Floating point rendertargets not supported on this hardware");
}
}
/// Make the buffer
int attribs[50];
int attrib = 0;
if (floatBuffer == RTF_ATI) {
attribs[attrib++] = GLX_RENDER_TYPE;
attribs[attrib++] = GLX_RGBA_FLOAT_ATI_BIT;
}
else if (floatBuffer == RTF_ARB)
{
attribs[attrib++] = GLX_RENDER_TYPE;
attribs[attrib++] = GLX_RGBA_FLOAT_BIT;
}
else
{
attribs[attrib++] = GLX_RENDER_TYPE;
attribs[attrib++] = GLX_RGBA_BIT;
}
attribs[attrib++] = GLX_DRAWABLE_TYPE;
attribs[attrib++] = GLX_PBUFFER_BIT;
attribs[attrib++] = GLX_STENCIL_SIZE;
attribs[attrib++] = 8;
attribs[attrib++] = GLX_DEPTH_SIZE;
attribs[attrib++] = 24;
attribs[attrib++] = GLX_RED_SIZE;
attribs[attrib++] = mBitDepth;
attribs[attrib++] = GLX_GREEN_SIZE;
attribs[attrib++] = mBitDepth;
attribs[attrib++] = GLX_BLUE_SIZE;
attribs[attrib++] = mBitDepth;
attribs[attrib++] = GLX_ALPHA_SIZE;
attribs[attrib++] = mBitDepth;
if (floatBuffer == RTF_NV) {
attribs[attrib++] = GLX_FLOAT_COMPONENTS_NV;
attribs[attrib++] = 1;
}
attribs[attrib++] = None;
GLXFBConfig * fbConfigs;
int nConfigs;
fbConfigs = glXChooseFBConfig(dpy, screen, attribs, &nConfigs);
if (nConfigs == 0 || !fbConfigs)
GPGPU_EXCEPT(ERR_RENDERSYSTEM, "RenderTexture::Initialize() creation error: Couldn't find a suitable pixel format");
/// Determine the type of context to create
int renderType = GLX_RGBA_TYPE;
if(floatBuffer == RTF_ARB)
{
renderType = GLX_RGBA_FLOAT_TYPE;
}
/// Pick the first returned format that will return a pbuffer
for (int i = 0; i < nConfigs; i++) {
// Check colour format
int redSize, greenSize, blueSize, alphaSize;
glXGetFBConfigAttrib(dpy, fbConfigs[i], GLX_RED_SIZE, &redSize);
glXGetFBConfigAttrib(dpy, fbConfigs[i], GLX_GREEN_SIZE, &greenSize);
glXGetFBConfigAttrib(dpy, fbConfigs[i], GLX_BLUE_SIZE, &blueSize);
glXGetFBConfigAttrib(dpy, fbConfigs[i], GLX_ALPHA_SIZE, &alphaSize);
if(redSize == mBitDepth && greenSize == mBitDepth &&
blueSize == mBitDepth && alphaSize == mBitDepth)
{
attrib = 0;
attribs[attrib++] = GLX_PBUFFER_WIDTH;
attribs[attrib++] = mWidth; // Get from texture?
attribs[attrib++] = GLX_PBUFFER_HEIGHT;
attribs[attrib++] = mHeight; // Get from texture?
attribs[attrib++] = GLX_PRESERVED_CONTENTS;
attribs[attrib++] = 1;
attribs[attrib++] = None;
mPBuffer =
glXCreatePbuffer(dpy, fbConfigs[i], attribs);
if (mPBuffer) {
mContext =
glXCreateNewContext(dpy,
fbConfigs[i],
renderType,
context, True);
break;
}
}
}
if (!mPBuffer)
GPGPU_EXCEPT(ERR_RENDERSYSTEM, "RenderTexture::Initialize() pbuffer creation error: No exact match found");
if (!mContext)
GPGPU_EXCEPT(ERR_RENDERSYSTEM, "RenderTexture::Initialize() creation error: glXCreateContext() failed");
/// Read final size
int _iWidth, _iHeight;
glXQueryDrawable(dpy, mPBuffer, GLX_WIDTH,
(GLuint *) & _iWidth);
glXQueryDrawable(dpy, mPBuffer, GLX_HEIGHT,
(GLuint *) & _iHeight);
mWidth = _iWidth;
mHeight = _iHeight;
}
void *QGLContext::tryVisual( const QGLFormat& f, int bufDepth )
{
int spec[40];
int i = 0;
spec[i++] = GLX_LEVEL;
spec[i++] = f.plane();
#if defined(GLX_VERSION_1_1) && defined(GLX_EXT_visual_info)
static bool useTranspExt = FALSE;
static bool useTranspExtChecked = FALSE;
if ( f.plane() && !useTranspExtChecked && d->paintDevice ) {
QCString estr( glXQueryExtensionsString( d->paintDevice->x11Display(),
d->paintDevice->x11Screen() ) );
useTranspExt = estr.contains( "GLX_EXT_visual_info" );
//# (A bit simplistic; that could theoretically be a substring)
if ( useTranspExt ) {
QCString cstr( glXGetClientString( d->paintDevice->x11Display(),
GLX_VENDOR ) );
useTranspExt = !cstr.contains( "Xi Graphics" ); // bug workaround
if ( useTranspExt ) {
// bug workaround - some systems (eg. FireGL) refuses to return an overlay
// visual if the GLX_TRANSPARENT_TYPE_EXT attribute is specfied, even if
// the implementation supports transparent overlays
int tmpSpec[] = { GLX_LEVEL, f.plane(), GLX_TRANSPARENT_TYPE_EXT,
f.rgba() ? GLX_TRANSPARENT_RGB_EXT : GLX_TRANSPARENT_INDEX_EXT,
None };
XVisualInfo * vinf = glXChooseVisual( d->paintDevice->x11Display(),
d->paintDevice->x11Screen(), tmpSpec );
if ( !vinf ) {
useTranspExt = FALSE;
}
}
}
useTranspExtChecked = TRUE;
}
if ( f.plane() && useTranspExt ) {
// Required to avoid non-transparent overlay visual(!) on some systems
spec[i++] = GLX_TRANSPARENT_TYPE_EXT;
spec[i++] = f.rgba() ? GLX_TRANSPARENT_RGB_EXT : GLX_TRANSPARENT_INDEX_EXT;
}
#endif
if ( f.doubleBuffer() )
spec[i++] = GLX_DOUBLEBUFFER;
if ( f.depth() ) {
spec[i++] = GLX_DEPTH_SIZE;
spec[i++] = 1;
}
if ( f.stereo() ) {
spec[i++] = GLX_STEREO;
}
if ( f.stencil() ) {
spec[i++] = GLX_STENCIL_SIZE;
spec[i++] = 1;
}
if ( f.rgba() ) {
spec[i++] = GLX_RGBA;
spec[i++] = GLX_RED_SIZE;
spec[i++] = 1;
spec[i++] = GLX_GREEN_SIZE;
spec[i++] = 1;
spec[i++] = GLX_BLUE_SIZE;
spec[i++] = 1;
if ( f.alpha() ) {
spec[i++] = GLX_ALPHA_SIZE;
spec[i++] = 1;
}
if ( f.accum() ) {
spec[i++] = GLX_ACCUM_RED_SIZE;
spec[i++] = 1;
spec[i++] = GLX_ACCUM_GREEN_SIZE;
spec[i++] = 1;
spec[i++] = GLX_ACCUM_BLUE_SIZE;
spec[i++] = 1;
if ( f.alpha() ) {
spec[i++] = GLX_ACCUM_ALPHA_SIZE;
spec[i++] = 1;
}
}
}
else {
spec[i++] = GLX_BUFFER_SIZE;
spec[i++] = bufDepth;
}
spec[i] = None;
return glXChooseVisual( d->paintDevice->x11Display(),
d->paintDevice->x11Screen(), spec );
}