From 96b7cb66df340e7f2ab379c7eefd29d74ea9e3a9 Mon Sep 17 00:00:00 2001 From: clayjohn Date: Mon, 12 Sep 2022 14:57:11 -0700 Subject: Fix multiwindow support in GLES3 for X11, Windows, and MacOS. Instead of updating all viewports, then blitting all viewports to the backbuffer, then swapping all buffers, we run through all viewports and render, blit, and swap backbuffer before going to the next viewport. --- platform/linuxbsd/gl_manager_x11.cpp | 24 +++++++++++------------- 1 file changed, 11 insertions(+), 13 deletions(-) (limited to 'platform/linuxbsd') diff --git a/platform/linuxbsd/gl_manager_x11.cpp b/platform/linuxbsd/gl_manager_x11.cpp index 04c1df71fb..838be2c042 100644 --- a/platform/linuxbsd/gl_manager_x11.cpp +++ b/platform/linuxbsd/gl_manager_x11.cpp @@ -256,7 +256,11 @@ void GLManager_X11::release_current() { if (!_current_window) { return; } - glXMakeCurrent(_x_windisp.x11_display, None, nullptr); + + if (!glXMakeCurrent(_x_windisp.x11_display, None, nullptr)) { + ERR_PRINT("glXMakeCurrent failed"); + } + _current_window = nullptr; } void GLManager_X11::window_make_current(DisplayServer::WindowID p_window_id) { @@ -276,7 +280,9 @@ void GLManager_X11::window_make_current(DisplayServer::WindowID p_window_id) { const GLDisplay &disp = get_display(win.gldisplay_id); - glXMakeCurrent(disp.x11_display, win.x11_window, disp.context->glx_context); + if (!glXMakeCurrent(disp.x11_display, win.x11_window, disp.context->glx_context)) { + ERR_PRINT("glXMakeCurrent failed"); + } _internal_set_current_window(&win); } @@ -290,13 +296,12 @@ void GLManager_X11::make_current() { return; } const GLDisplay &disp = get_current_display(); - glXMakeCurrent(_x_windisp.x11_display, _x_windisp.x11_window, disp.context->glx_context); + if (!glXMakeCurrent(_x_windisp.x11_display, _x_windisp.x11_window, disp.context->glx_context)) { + ERR_PRINT("glXMakeCurrent failed"); + } } void GLManager_X11::swap_buffers() { - // NO NEED TO CALL SWAP BUFFERS for each window... - // see https://www.khronos.org/registry/OpenGL-Refpages/gl2.1/xhtml/glXSwapBuffers.xml - if (!_current_window) { return; } @@ -315,13 +320,6 @@ void GLManager_X11::swap_buffers() { } } - // print_line("\tswap_buffers"); - - // only for debugging without drawing anything - // glClearColor(Math::randf(), 0, 1, 1); - //glClear(GL_COLOR_BUFFER_BIT); - - //const GLDisplay &disp = get_current_display(); glXSwapBuffers(_x_windisp.x11_display, _x_windisp.x11_window); } -- cgit v1.2.3