extern void device_present(gs_device_t *device)
{
static bool initialized = false;
static enum swap_type swap_type = SWAP_TYPE_NORMAL;
Display *display = device->plat->display;
XID window = device->cur_swap->wi->window;
if (!initialized) {
if (GLAD_GLX_EXT_swap_control)
swap_type = SWAP_TYPE_EXT;
else if (GLAD_GLX_MESA_swap_control)
swap_type = SWAP_TYPE_MESA;
else if (GLAD_GLX_SGI_swap_control)
swap_type = SWAP_TYPE_SGI;
initialized = true;
}
/* TODO: Handle XCB events. */
switch (swap_type) {
case SWAP_TYPE_EXT: glXSwapIntervalEXT(display, window, 0); break;
case SWAP_TYPE_MESA: glXSwapIntervalMESA(0); break;
case SWAP_TYPE_SGI: glXSwapIntervalSGI(0); break;
case SWAP_TYPE_NORMAL:;
}
glXSwapBuffers(display, window);
}
void CL_OpenGLWindowProvider_GLX::create(CL_DisplayWindowSite *new_site, const CL_DisplayWindowDescription &desc)
{
site = new_site;
bool create_provider_flag = false;
Display *disp = x11_window.get_display();
if (!opengl_context)
{
// FBConfigs were added in GLX version 1.3.
int glx_major, glx_minor;
if ( !glx.glXQueryVersion( disp, &glx_major, &glx_minor ) ||
( ( glx_major == 1 ) && ( glx_minor < 3 ) ) || ( glx_major < 1 ) )
{
glx_1_3 = false;
}
else
{
glx_1_3 = true;
}
create_provider_flag = true;
if (glx_1_3)
{
create_glx_1_3(new_site, desc, disp);
}
else
{
create_glx_1_2(new_site, desc, disp);
}
if (!glx.glXIsDirect(disp, opengl_context))
printf("No hardware acceleration available. I hope you got a really fast machine.\n");
}
x11_window.create(opengl_visual_info, site, desc);
if (create_provider_flag)
{
CL_OpenGLWindowDescription gldesc(desc);
gc = CL_GraphicContext(new CL_OpenGLGraphicContextProvider(new CL_GL_RenderWindowProvider_GLX(*this, opengl_context, false), gldesc));
std::vector<CL_GraphicContextProvider*> &gc_providers = CL_SharedGCData::get_gc_providers();
gc_providers.push_back(gc.get_provider());
}
setup_swap_interval_pointers();
swap_interval = desc.get_swap_interval();
if (swap_interval != -1)
{
if (glXSwapIntervalSGI)
{
glXSwapIntervalSGI(swap_interval);
}
else if (glXSwapIntervalMESA)
{
glXSwapIntervalMESA(swap_interval);
}
}
}
void set_synchronization(bool enable) {
// General notes:
// Setting swapping on and off is platform-dependent and requires platform-specific extensions.
// Platform-specific extensions are even more bothersome than regular extensions.
// What functions and features to use depends on which version of OpenGL is used.
// For more information, see the following pages:
// http://www.opengl.org/wiki/Load_OpenGL_Functions
// http://www.opengl.org/wiki/OpenGL_Loading_Library
// http://www.opengl.org/wiki/Swap_Interval
// http://en.wikipedia.org/wiki/GLX
// Also note that OpenGL version >= 3.0 does not use glGetString for getting extensions.
if (enigma::x11::disp != 0) {
GLXDrawable drawable = glXGetCurrentDrawable();
int interval = enable ? 1 : 0;
if (enigma::is_ext_swapcontrol_supported()) {
glXSwapIntervalEXT(enigma::x11::disp, drawable, interval);
}
else if (enigma::is_mesa_swapcontrol_supported()) {
glXSwapIntervalMESA(interval);
}
// NOTE: GLX_SGI_swap_control, which is not used here, does not seem
// to support disabling of synchronization, since its argument may not
// be zero or less, so therefore it is not used here.
// See http://www.opengl.org/registry/specs/SGI/swap_control.txt for more information.
}
}
void iface::set_vsync_interval(int interval)
{
typedef void (*glXSwapIntervalEXT_fun)(Display*,GLXDrawable,int);
typedef int(*glXSwapIntervalSGI_fun)(int);
glXSwapIntervalEXT_fun glXSwapIntervalEXT = (glXSwapIntervalEXT_fun)glXGetProcAddress((GLubyte const*)"glXSwapIntervalEXT");
if (glXSwapIntervalEXT)
{
glXSwapIntervalEXT(gui::g_display, window_, interval);
return;
}
glXSwapIntervalSGI_fun glXSwapIntervalMESA = (glXSwapIntervalSGI_fun)glXGetProcAddress((GLubyte const*)"glXSwapIntervalMESA");
if (glXSwapIntervalMESA)
{
glXSwapIntervalMESA(interval);
return;
}
glXSwapIntervalSGI_fun glXSwapIntervalSGI = (glXSwapIntervalSGI_fun)glXGetProcAddress((GLubyte const*)"glXSwapIntervalSGI");
if (glXSwapIntervalSGI)
{
glXSwapIntervalSGI(interval);
return;
}
}
void WindowImpl::enable_vsync() {
if (strstr(glXExtensions, "GLX_EXT_swap_control") != nullptr) {
glXSwapIntervalEXT = reinterpret_cast<PFNGLXSWAPINTERVALEXTPROC>(glXGetProcAddress((GLubyte *)"glXSwapIntervalEXT"));
} else if (strstr(glXExtensions, "GLX_MESA_swap_control") != nullptr) {
glXSwapIntervalMESA = reinterpret_cast<PFNGLXSWAPINTERVALMESAPROC>(glXGetProcAddress((GLubyte *)"glXSwapIntervalMESA"));
} else {
#ifdef DISPLAY_GLX_INFO
puts("VSync not supported");
#endif
return;
}
if (glXSwapIntervalEXT) {
if (strstr(glXExtensions, "GLX_EXT_swap_control_tear") != nullptr) {
#ifdef DISPLAY_GLX_INFO
puts("Enabling ADAPTIVE VSync");
#endif
glXSwapIntervalEXT(dpy, xWin, -1);
} else {
#ifdef DISPLAY_GLX_INFO
puts("Enabling VSync");
#endif
glXSwapIntervalEXT(dpy, xWin, 1);
}
} else if (glXSwapIntervalMESA) {
#ifdef DISPLAY_GLX_INFO
puts("Enabling VSync");
#endif
glXSwapIntervalMESA(1);
} else {
#ifdef DISPLAY_GLX_INFO
puts("Failed to load swap control function");
#endif
}
}
//-------------------------------------------------------------------------------------------------//
void GLXWindow::setVSyncEnabled(bool vsync)
{
mVSync = vsync;
// we need to make our context current to set vsync
// store previous context to restore when finished.
::GLXDrawable oldDrawable = glXGetCurrentDrawable();
::GLXContext oldContext = glXGetCurrentContext();
mContext->setCurrent();
if (! mIsExternalGLControl)
{
if (GLXEW_MESA_swap_control)
glXSwapIntervalMESA (vsync ? mVSyncInterval : 0);
else if (GLXEW_EXT_swap_control)
glXSwapIntervalEXT (mGLSupport->getGLDisplay(), glXGetCurrentDrawable(),
vsync ? mVSyncInterval : 0);
else if (GLXEW_SGI_swap_control)
if (vsync && mVSyncInterval)
glXSwapIntervalSGI (mVSyncInterval);
}
mContext->endCurrent();
glXMakeCurrent (mGLSupport->getGLDisplay(), oldDrawable, oldContext);
}
void GLXEnableVSync(Display* disp, GLXWindow drawable) {
if (GLXEW_EXT_swap_control)
glXSwapIntervalEXT(disp, drawable, 1);
else if (GLXEW_MESA_swap_control)
glXSwapIntervalMESA(1);
else if (GLXEW_SGI_swap_control)
glXSwapIntervalSGI(1);
}
void GlxBackend::setSwapInterval(int interval)
{
if (glXSwapIntervalEXT)
glXSwapIntervalEXT(display(), glxWindow, interval);
else if (glXSwapIntervalMESA)
glXSwapIntervalMESA(interval);
else if (glXSwapIntervalSGI)
glXSwapIntervalSGI(interval);
}
void GlxBackend::setSwapInterval(int interval)
{
if (m_haveEXTSwapControl)
glXSwapIntervalEXT(display(), glxWindow, interval);
else if (m_haveMESASwapControl)
glXSwapIntervalMESA(interval);
else if (m_haveSGISwapControl)
glXSwapIntervalSGI(interval);
}
int gl_SwapInterval(State& state){
#ifdef __WGLEW_H__
wglSwapIntervalEXT((int) state.stack->to<int>(1));
#else
#ifdef __GLXEW_H__
glXSwapIntervalMESA((int) state.stack->to<int>(1));
#endif
#endif
return 0;
}
int gl_GetSwapInterval(State& state){
#ifdef __WGLEW_H__
wglSwapIntervalEXT((int) state.stack->to<int>(1));
state.stack->push<int>(wglGetSwapIntervalEXT());
#else
#ifdef __GLXEW_H__
glXSwapIntervalMESA((int) state.stack->to<int>(1));
state.stack->push<int>(glXGetSwapIntervalMESA());
#endif
#endif
return 1;
}
void zl_glx_vsync(zl_glx *x, bool sync) {
#ifdef TARGET_WIN32
if (sync) {
if (GLEE_WGL_EXT_swap_control) wglSwapIntervalEXT (1);
} else {
if (GLEE_WGL_EXT_swap_control) wglSwapIntervalEXT (0);
}
#endif
#ifdef TARGET_OSX
long sync = sync ? 1 : 0;
CGLSetParameter (CGLGetCurrentContext(), kCGLCPSwapInterval, &sync);
#endif
#ifdef TARGET_LINUX
int interval = sync ? 2 : 0;
glXSwapIntervalSGIFunc glXSwapIntervalSGI = 0;
glXSwapIntervalMESAFunc glXSwapIntervalMESA = 0;
if (GLXExtensionSupported(x->xdpy->dpy, "GLX_MESA_swap_control")) {
glXSwapIntervalMESA = (glXSwapIntervalMESAFunc)
glXGetProcAddressARB((const GLubyte *)"glXSwapIntervalMESA");
if (glXSwapIntervalMESA) {
ZL_LOG("glXSwapIntervalMESA(%d)", interval);
glXSwapIntervalMESA (interval);
}
else {
ZL_LOG("Could not get glXSwapIntervalMESA()\n");
}
}
else if (GLXExtensionSupported(x->xdpy->dpy, "GLX_SGI_swap_control")) {
glXSwapIntervalSGI = (glXSwapIntervalSGIFunc)
glXGetProcAddressARB((const GLubyte *)"glXSwapIntervalSGI");
if (glXSwapIntervalSGI) {
ZL_LOG("glXSwapIntervalSGI(%d)", interval, glXSwapIntervalSGI);
glXSwapIntervalSGI (interval);
}
else {
ZL_LOG("Could not get glXSwapIntervalSGI()\n");
}
}
else {
ZL_LOG("can't change vblank settings");
}
#endif
}
void CL_OpenGLWindowProvider_GLX::flip(int interval)
{
CL_GraphicContext gc = get_gc();
CL_OpenGL::set_active(gc);
glFlush();
if (interval != -1 && interval != swap_interval)
{
swap_interval = interval;
if (glXSwapIntervalSGI)
{
glXSwapIntervalSGI(swap_interval);
}
else if (glXSwapIntervalMESA)
{
glXSwapIntervalMESA(swap_interval);
}
}
glx.glXSwapBuffers(x11_window.get_display(), x11_window.get_window());
}
void glXSwapIntervalEXT(Display *display, int drawable, int interval) {
glXSwapIntervalMESA(interval);
}
void glXSwapIntervalSGI(int interval) {
glXSwapIntervalMESA(interval);
}
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
}
int main(int argc, char **argv)
{
float xspan = 0.0;
int xwidth, yheight;
double xscale = 1.0;
int x = 0;
int y = 0;
char buf[100];
Display *dpy;
Window win;
XVisualInfo *vi;
Colormap cmap;
XSetWindowAttributes swa;
GLXContext cx;
XEvent event;
Bool needRedraw = False, recalcModelView = True;
dpy = XOpenDisplay(NULL);
vi = glXChooseVisual(dpy, DefaultScreen(dpy), dblBuf);
cx = glXCreateContext(dpy, vi, None, True);
cmap = XCreateColormap(dpy, RootWindow(dpy, vi->screen), vi->visual, AllocNone);
swa.colormap = cmap;
swa.border_pixel = 0;
swa.event_mask = ExposureMask | ButtonPressMask | StructureNotifyMask;
win = XCreateWindow(dpy, RootWindow(dpy, vi->screen), 0, 0, 300, 300, 0, vi->depth, InputOutput, vi->visual, CWBorderPixel | CWColormap | CWEventMask, &swa);
XSetStandardProperties(dpy, win, "glxsimple", "glxsimple", None, argv, argc, NULL);
glXMakeCurrent(dpy, win, cx);
XSelectInput(dpy, win, ExposureMask | KeyPressMask | ButtonPressMask | StructureNotifyMask);
XMapWindow(dpy, win);
Atom WM_DELETE_WINDOW = XInternAtom(dpy, "WM_DELETE_WINDOW", False);
XSetWMProtocols(dpy, win, &WM_DELETE_WINDOW, 1);
GLenum err = glewInit();
if (GLEW_OK != err)
printf("Error: %s\n", glewGetErrorString(err));
err = glXSwapIntervalMESA(1);
if (err == GLX_BAD_CONTEXT)
printf("bad context\n");
//printf("swap interval is %d\n", glXGetSwapIntervalMESA());
developmassive();
while (1)
{
XNextEvent(dpy, &event);
switch (event.type)
{
case ConfigureNotify:
xwidth = event.xconfigure.width;
yheight = event.xconfigure.height;
printf("width %d, height %d\n",xwidth,yheight);
printf("scale by x is %f\n",(double)xwidth/l);
glViewport(0, 0, event.xconfigure.width, event.xconfigure.height);
glLoadIdentity();
gluOrtho2D(0.0,(GLdouble)event.xconfigure.width,0.0,(GLdouble)event.xconfigure.height);
//break;
case KeyPress:
XLookupString(&event.xkey,buf,100,NULL,NULL);
//printf("keypress %s\n",buf);
switch(XLookupKeysym (&event.xkey, 0))
{
/*case XK_1:
xscale = 1.0;
break;
case XK_2:
xscale = (double)xwidth/l;
break;*/
case XK_2:
if (xscale/2.0>(double)xwidth/l)
xscale = xscale/2.0;
else
xscale = (double)xwidth/l;
break;
case XK_1:
xscale = xscale*2.0;
break;
case XK_q:
XCloseDisplay(dpy);
exit(0);
break;
case XK_Left:
//xspan++;
if (( (l-xspan) *xscale) > xwidth)
xspan=xspan+(1.0/xscale);
//glTranslatef(-10.0,0.0,0.0);
break;
case XK_Right:
//xspan--;
if (xspan-(1.0/xscale)>=0)
xspan=xspan-(1.0/xscale);
//glTranslatef(10.0,0.0,0.0);
break;
case XK_Up:
//y++;
glTranslatef(0.0,10.0,0.0);
break;
case XK_Down:
//y--;
glTranslatef(0.0,-10.0,0.0);
break;
}
//break;
case ButtonPress:
switch(event.xbutton.button)
{
case Button4:
if (event.xbutton.state & ControlMask)
xscale = xscale*2.0;
else if (event.xbutton.state & ShiftMask)
{
if (( (l-xspan) *xscale) > xwidth)
xspan=xspan+(10.0/xscale);
}
else
glTranslatef(0.0,10.0,0.0);
printf("wheel up\n");
break;
case Button5:
if (event.xbutton.state & ControlMask)
if (xscale/2.0>(double)xwidth/l)
xscale = xscale/2.0;
else
xscale = (double)xwidth/l;
else if (event.xbutton.state & ShiftMask)
{
if (xspan-(10.0/xscale)>=0)
xspan=xspan-(10.0/xscale);
}
else
glTranslatef(0.0,-10.0,0.0);
printf("wheel down\n");
break;
}
//break;
case Expose:
glClear(GL_COLOR_BUFFER_BIT);
//scale matrix
glPushMatrix();
//glScalef(0.5,1.0,1.0);
//glScalef((float)xwidth/l,1.0,1.0);
glScalef(xscale,1.0,1.0);
//glLoadIdentity();
//glRectf(x,y,x+10,y+10);
glBegin(GL_LINE_STRIP);
//draw screen width
//for(int i=0;i<xwidth;i++)
//draw screen width by current scale
for(int i=0; i<xwidth/xscale; i++)
//draw everything
//for(int i=0;i<l;i++)
{
glVertex2i(i,m[5][i+(int)xspan]);
if (i+xspan>l)
break;
}
glEnd();
//glRectf(10,10,20,20);
//glRectf(0.5,0.5,0.7,0.7);
glPopMatrix();
//glEnd();
glXSwapBuffers(dpy, win);
//glFlush();
break;
case ClientMessage:
XCloseDisplay(dpy);
exit(0);
break;
}
}
return 0;
}
int gl_open_window () {
_gl_display = XOpenDisplay(0);
if (!_gl_display) {
fprintf( stderr, "Cannot connect to X server\n");
return 1;
}
_gl_screen = DefaultScreen(_gl_display);
int attrList[] = {
GLX_RGBA, GLX_DOUBLEBUFFER,
GLX_RED_SIZE, 4,
GLX_GREEN_SIZE, 4,
GLX_BLUE_SIZE, 4,
GLX_DEPTH_SIZE, 16,
GLX_ARB_multisample, 1,
None
};
XVisualInfo* vi = glXChooseVisual(_gl_display, _gl_screen, attrList);
if (!vi) {
fprintf(stderr, "GLX visual is not supported\n");
XCloseDisplay(_gl_display);
return 1;
}
int glxMajor, glxMinor;
glXQueryVersion(_gl_display, &glxMajor, &glxMinor);
if (want_verbose) {
printf("GLX-Version : %d.%d\n", glxMajor, glxMinor);
}
Window xParent = RootWindow(_gl_display, _gl_screen);
Colormap cmap = XCreateColormap(
_gl_display, xParent, vi->visual, AllocNone);
XSetWindowAttributes attr;
memset(&attr, 0, sizeof(XSetWindowAttributes));
attr.colormap = cmap;
attr.border_pixel = 0;
_gl_width = ffctv_width;
_gl_height = ffctv_height;
attr.event_mask = ExposureMask | KeyPressMask
| Button1MotionMask
| ButtonPressMask | ButtonReleaseMask
| StructureNotifyMask;
_gl_win = XCreateWindow(
_gl_display, xParent,
0, 0, _gl_width, _gl_height, 0, vi->depth, InputOutput, vi->visual,
CWBorderPixel | CWColormap | CWEventMask, &attr);
if (!_gl_win) {
XCloseDisplay(_gl_display);
return 1;
}
XStoreName(_gl_display, _gl_win, "xjadeo");
Atom wmDelete = XInternAtom(_gl_display, "WM_DELETE_WINDOW", True);
XSetWMProtocols(_gl_display, _gl_win, &wmDelete, 1);
setup_window_hints_and_icon(_gl_display, _gl_win, xParent, 4096 /*TODO query max texture size*/);
_gl_ctx = glXCreateContext(_gl_display, vi, 0, GL_TRUE);
if (!_gl_ctx) {
XDestroyWindow(_gl_display, _gl_win);
XCloseDisplay(_gl_display);
return 1;
}
#ifdef DND
init_dnd(_gl_display, _gl_win);
#endif
XMapRaised(_gl_display, _gl_win);
if (want_verbose) {
if (glXIsDirect(_gl_display, _gl_ctx)) {
printf("GLX: DRI enabled\n");
} else {
printf("GLX: No DRI available\n");
}
}
XFree(vi);
if (start_fullscreen) { gl_set_fullscreen(1); }
if (start_ontop) { gl_set_ontop(1); }
glXMakeCurrent(_gl_display, _gl_win, _gl_ctx);
gl_init();
if (gl_reallocate_texture(movie_width, movie_height)) {
gl_close_window ();
return 1;
}
#if 1 // check for VBlank sync
/* https://www.opengl.org/wiki/Swap_Interval ; -1 for adaptive */
int (*glXSwapIntervalSGI)(int interval) = (int (*)(int))
glXGetProcAddress((const GLubyte *)"glXSwapIntervalSGI");
GLint (*glXSwapIntervalMESA) (unsigned interval) = (GLint (*)(unsigned))
glXGetProcAddress((const GLubyte *)"glXSwapIntervalMESA");
int (*glXSwapIntervalEXT)(Display *dpy, GLXDrawable drw, int interval) =
(int (*)(Display*, GLXDrawable, int))
glXGetProcAddress((const GLubyte *)"glXSwapIntervalEXT");
int vblank = -1;
if (glXSwapIntervalSGI && check_glx_extention("GLX_SGI_swap_control")) {
vblank = glXSwapIntervalSGI(1);
if (want_verbose)
printf("GLX: use SGI Vblank\n");
}
else if (glXSwapIntervalMESA && check_glx_extention("GLX_MESA_swap_control")) {
vblank = glXSwapIntervalMESA(1);
if (want_verbose)
printf("GLX: use MESA Vblank\n");
}
else if (glXSwapIntervalEXT && check_glx_extention("GLX_EXT_swap_control")) {
GLXDrawable drawable = glXGetCurrentDrawable();
if (drawable) {
vblank = glXSwapIntervalEXT(_gl_display, drawable, 1);
if (want_verbose)
printf("GLX: use EXT Vblank\n");
}
} else {
if (!want_quiet) {
fprintf(stderr, "openGL VBlank not synced\n");
}
}
// https://www.opengl.org/wiki/Swap_Interval#GPU_vs_CPU_synchronization
//_gl_vblank_sync = (vblank == 0) ? 1 : 0;
#endif
return 0;
}