mirror of
https://github.com/ultimatepp/ultimatepp.git
synced 2026-05-30 14:22:28 -06:00
172 lines
3.6 KiB
C++
172 lines
3.6 KiB
C++
#include "GLCtrl.h"
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#ifdef GUI_GTK
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#include <GL/glx.h>
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#include <GL/gl.h>
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#define Time XTime
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#define Font XFont
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#define Display XDisplay
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#define Picture XPicture
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#define Status int
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#include <gdk/gdkx.h>
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#undef Time
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#undef Font
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#undef Display
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#undef Picture
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#undef Status
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namespace Upp {
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static XVisualInfo *s_XVisualInfo;
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static Colormap s_Colormap;
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static GLXContext s_GLXContext;
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static ::XDisplay *s_Display;
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EXITBLOCK {
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if(s_GLXContext)
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glXDestroyContext(s_Display, s_GLXContext);
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}
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void GLCtrl::Create()
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{
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MemoryIgnoreLeaksBlock __;
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Ctrl *top = GetTopCtrl();
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if(!top)
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return;
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GdkWindow *gdk = top->gdk();
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if(!gdk)
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return;
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Window w = gdk_x11_drawable_get_xid((GdkDrawable *)gdk);
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ONCELOCK {
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s_Display = gdk_x11_drawable_get_xdisplay((GdkDrawable *)gdk);
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int samples = numberOfSamples;
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do {
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Vector<int> attr;
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attr << GLX_RGBA << GLX_DEPTH_SIZE << depthSize
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<< GLX_STENCIL_SIZE << stencilSize;
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if(doubleBuffering)
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attr << GLX_DOUBLEBUFFER;
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if(samples > 1)
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attr << GLX_SAMPLE_BUFFERS_ARB << 1 << GLX_SAMPLES_ARB << samples;
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attr << 0;
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samples >>= 1;
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s_XVisualInfo = glXChooseVisual(s_Display, DefaultScreen(s_Display), attr);
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}
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while(!s_XVisualInfo && samples > 0);
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/*
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GLXFBConfig *fbc;
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do {
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Vector<int> attr;
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attr << GLX_RGBA << GLX_DEPTH_SIZE << depthSize
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<< GLX_STENCIL_SIZE << stencilSize;
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if(doubleBuffering)
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attr << GLX_DOUBLEBUFFER;
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if(samples > 1)
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attr << GLX_SAMPLE_BUFFERS_ARB << 1 << GLX_SAMPLES_ARB << samples;
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attr << 0;
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samples >>= 1;
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int fbcount;
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fbc = glXChooseFBConfig(s_Display, DefaultScreen(s_Display), attr, &fbcount);
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}
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while(!fbc && samples > 0);
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if(fbc)
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s_XVisualInfo = glXGetVisualFromFBConfig(s_Display, fbc[0]);
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*/
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if(!s_XVisualInfo)
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return;
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s_Colormap = XCreateColormap(s_Display, RootWindow(s_Display, s_XVisualInfo->screen), s_XVisualInfo->visual, AllocNone);
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s_GLXContext = glXCreateContext(s_Display, s_XVisualInfo, NULL, GL_TRUE);
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}
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if(!s_GLXContext)
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return;
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XSetWindowAttributes swa;
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swa.colormap = s_Colormap;
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swa.border_pixel = 0;
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swa.event_mask = 0;
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win = XCreateWindow(s_Display, w, 0, 0, 1, 1, 0,
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s_XVisualInfo->depth, InputOutput, s_XVisualInfo->visual,
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CWBorderPixel|CWColormap|CWEventMask, &swa);
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visible = false;
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position = Null;
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}
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void GLCtrl::Sync()
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{
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if(win) {
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Rect r = GetScreenView() - GetTopCtrl()->GetScreenRect().TopLeft();
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bool b = IsVisible() && r.GetWidth() > 0 && r.GetHeight() > 0;
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if(b != visible) {
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visible = b;
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position = Null;
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if(b)
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XMapWindow(s_Display, win);
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else
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XUnmapWindow(s_Display, win);
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}
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if(r != position && visible) {
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position = r;
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XMoveResizeWindow(s_Display, win, r.left, r.top, r.Width(), r.Height());
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}
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}
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}
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void GLCtrl::State(int reason)
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{
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switch(reason) {
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case CLOSE:
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XDestroyWindow(s_Display, win);
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break;
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case OPEN:
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Create();
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default:
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Sync();
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break;
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}
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}
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void GLCtrl::ExecuteGL(Event<> paint, bool swap_buffers)
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{
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MemoryIgnoreLeaksBlock __;
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glXMakeCurrent(s_Display, win, s_GLXContext);
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ONCELOCK {
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glewInit();
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}
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paint();
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if(swap_buffers)
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glXSwapBuffers(s_Display, win);
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else
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glFlush();
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glXMakeCurrent(s_Display, None, NULL);
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}
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void GLCtrl::Paint(Draw& w)
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{
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Size sz = GetSize();
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if(!s_GLXContext || sz.cx == 0 || sz.cy == 0)
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return;
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ExecuteGL([&] { DoGLPaint(); }, doubleBuffering);
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}
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}
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#endif
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