diff options
Diffstat (limited to 'platform/x11/context_gl_x11.cpp')
| -rw-r--r-- | platform/x11/context_gl_x11.cpp | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/platform/x11/context_gl_x11.cpp b/platform/x11/context_gl_x11.cpp index 9f987e1376..cd325dfc99 100644 --- a/platform/x11/context_gl_x11.cpp +++ b/platform/x11/context_gl_x11.cpp @@ -34,7 +34,9 @@ #include <unistd.h> #include <stdlib.h> +#define GLX_GLXEXT_PROTOTYPES #include <GL/glx.h> +#include <GL/glxext.h> #define GLX_CONTEXT_MAJOR_VERSION_ARB 0x2091 #define GLX_CONTEXT_MINOR_VERSION_ARB 0x2092 @@ -176,6 +178,41 @@ int ContextGL_X11::get_window_height() { return xwa.height; } +void ContextGL_X11::set_use_vsync(bool p_use) { + static bool setup = false; + static PFNGLXSWAPINTERVALEXTPROC glXSwapIntervalEXT = NULL; + static PFNGLXSWAPINTERVALSGIPROC glXSwapIntervalMESA = NULL; + static PFNGLXSWAPINTERVALSGIPROC glXSwapIntervalSGI = NULL; + + if (!setup) { + setup = true; + String extensions = glXQueryExtensionsString(x11_display, DefaultScreen(x11_display)); + if (extensions.find("GLX_EXT_swap_control") != -1) + glXSwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC) glXGetProcAddressARB((const GLubyte*)"glXSwapIntervalEXT"); + if (extensions.find("GLX_MESA_swap_control") != -1) + glXSwapIntervalMESA = (PFNGLXSWAPINTERVALSGIPROC) glXGetProcAddressARB((const GLubyte*)"glXSwapIntervalMESA"); + if (extensions.find("GLX_SGI_swap_control") != -1) + glXSwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC) glXGetProcAddressARB((const GLubyte*)"glXSwapIntervalSGI"); + } + int val = p_use ? 1:0; + if (glXSwapIntervalMESA) { + glXSwapIntervalMESA(val); + } + else if (glXSwapIntervalSGI) { + glXSwapIntervalSGI(val); + } + else if (glXSwapIntervalEXT) { + GLXDrawable drawable = glXGetCurrentDrawable(); + glXSwapIntervalEXT(x11_display, drawable, val); + } + else return; + use_vsync = p_use; +} +bool ContextGL_X11::is_using_vsync() const { + + return use_vsync; +} + ContextGL_X11::ContextGL_X11(::Display *p_x11_display,::Window &p_x11_window,const OS::VideoMode& p_default_video_mode,bool p_opengl_3_context) : x11_window(p_x11_window) { @@ -189,6 +226,7 @@ ContextGL_X11::ContextGL_X11(::Display *p_x11_display,::Window &p_x11_window,con glx_minor=glx_major=0; p = memnew( ContextGL_X11_Private ); p->glx_context=0; + use_vsync=false; } |