mirror of
https://github.com/hajimehoshi/ebiten.git
synced 2024-12-27 04:08:53 +01:00
680 lines
21 KiB
C
680 lines
21 KiB
C
// SPDX-License-Identifier: Apache-2.0
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// SPDX-FileCopyrightText: 2002-2006 Marcus Geelnard
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// SPDX-FileCopyrightText: 2006-2019 Camilla Löwy <elmindreda@glfw.org>
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// SPDX-FileCopyrightText: 2023 The Ebitengine Authors
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//go:build freebsd || linux || netbsd || openbsd
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#include "internal_unix.h"
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#include <string.h>
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#include <stdlib.h>
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#include <assert.h>
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#ifndef GLXBadProfileARB
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#define GLXBadProfileARB 13
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#endif
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// Returns the specified attribute of the specified GLXFBConfig
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//
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static int getGLXFBConfigAttrib(GLXFBConfig fbconfig, int attrib)
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{
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int value;
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glXGetFBConfigAttrib(_glfw.x11.display, fbconfig, attrib, &value);
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return value;
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}
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// Return the GLXFBConfig most closely matching the specified hints
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//
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static GLFWbool chooseGLXFBConfig(const _GLFWfbconfig* desired,
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GLXFBConfig* result)
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{
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GLXFBConfig* nativeConfigs;
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_GLFWfbconfig* usableConfigs;
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const _GLFWfbconfig* closest;
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int i, nativeCount, usableCount;
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const char* vendor;
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GLFWbool trustWindowBit = GLFW_TRUE;
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// HACK: This is a (hopefully temporary) workaround for Chromium
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// (VirtualBox GL) not setting the window bit on any GLXFBConfigs
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vendor = glXGetClientString(_glfw.x11.display, GLX_VENDOR);
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if (vendor && strcmp(vendor, "Chromium") == 0)
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trustWindowBit = GLFW_FALSE;
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nativeConfigs =
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glXGetFBConfigs(_glfw.x11.display, _glfw.x11.screen, &nativeCount);
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if (!nativeConfigs || !nativeCount)
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{
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_glfwInputError(GLFW_API_UNAVAILABLE, "GLX: No GLXFBConfigs returned");
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return GLFW_FALSE;
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}
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usableConfigs = calloc(nativeCount, sizeof(_GLFWfbconfig));
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usableCount = 0;
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for (i = 0; i < nativeCount; i++)
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{
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const GLXFBConfig n = nativeConfigs[i];
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_GLFWfbconfig* u = usableConfigs + usableCount;
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// Only consider RGBA GLXFBConfigs
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if (!(getGLXFBConfigAttrib(n, GLX_RENDER_TYPE) & GLX_RGBA_BIT))
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continue;
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// Only consider window GLXFBConfigs
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if (!(getGLXFBConfigAttrib(n, GLX_DRAWABLE_TYPE) & GLX_WINDOW_BIT))
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{
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if (trustWindowBit)
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continue;
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}
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if (getGLXFBConfigAttrib(n, GLX_DOUBLEBUFFER) != desired->doublebuffer)
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continue;
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if (desired->transparent)
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{
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XVisualInfo* vi = glXGetVisualFromFBConfig(_glfw.x11.display, n);
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if (vi)
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{
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u->transparent = _glfwIsVisualTransparentX11(vi->visual);
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XFree(vi);
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}
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}
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u->redBits = getGLXFBConfigAttrib(n, GLX_RED_SIZE);
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u->greenBits = getGLXFBConfigAttrib(n, GLX_GREEN_SIZE);
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u->blueBits = getGLXFBConfigAttrib(n, GLX_BLUE_SIZE);
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u->alphaBits = getGLXFBConfigAttrib(n, GLX_ALPHA_SIZE);
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u->depthBits = getGLXFBConfigAttrib(n, GLX_DEPTH_SIZE);
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u->stencilBits = getGLXFBConfigAttrib(n, GLX_STENCIL_SIZE);
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u->accumRedBits = getGLXFBConfigAttrib(n, GLX_ACCUM_RED_SIZE);
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u->accumGreenBits = getGLXFBConfigAttrib(n, GLX_ACCUM_GREEN_SIZE);
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u->accumBlueBits = getGLXFBConfigAttrib(n, GLX_ACCUM_BLUE_SIZE);
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u->accumAlphaBits = getGLXFBConfigAttrib(n, GLX_ACCUM_ALPHA_SIZE);
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u->auxBuffers = getGLXFBConfigAttrib(n, GLX_AUX_BUFFERS);
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if (getGLXFBConfigAttrib(n, GLX_STEREO))
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u->stereo = GLFW_TRUE;
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if (_glfw.glx.ARB_multisample)
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u->samples = getGLXFBConfigAttrib(n, GLX_SAMPLES);
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if (_glfw.glx.ARB_framebuffer_sRGB || _glfw.glx.EXT_framebuffer_sRGB)
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u->sRGB = getGLXFBConfigAttrib(n, GLX_FRAMEBUFFER_SRGB_CAPABLE_ARB);
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u->handle = (uintptr_t) n;
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usableCount++;
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}
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closest = _glfwChooseFBConfig(desired, usableConfigs, usableCount);
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if (closest)
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*result = (GLXFBConfig) closest->handle;
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XFree(nativeConfigs);
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free(usableConfigs);
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return closest != NULL;
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}
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// Create the OpenGL context using legacy API
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//
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static GLXContext createLegacyContextGLX(_GLFWwindow* window,
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GLXFBConfig fbconfig,
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GLXContext share)
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{
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return glXCreateNewContext(_glfw.x11.display,
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fbconfig,
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GLX_RGBA_TYPE,
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share,
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True);
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}
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static void makeContextCurrentGLX(_GLFWwindow* window)
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{
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if (window)
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{
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if (!glXMakeCurrent(_glfw.x11.display,
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window->context.glx.window,
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window->context.glx.handle))
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"GLX: Failed to make context current");
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return;
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}
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}
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else
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{
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if (!glXMakeCurrent(_glfw.x11.display, None, NULL))
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"GLX: Failed to clear current context");
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return;
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}
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}
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_glfwPlatformSetTls(&_glfw.contextSlot, window);
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}
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static void swapBuffersGLX(_GLFWwindow* window)
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{
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glXSwapBuffers(_glfw.x11.display, window->context.glx.window);
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}
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static void swapIntervalGLX(int interval)
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{
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_GLFWwindow* window = _glfwPlatformGetTls(&_glfw.contextSlot);
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if (_glfw.glx.EXT_swap_control)
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{
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_glfw.glx.SwapIntervalEXT(_glfw.x11.display,
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window->context.glx.window,
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interval);
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}
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else if (_glfw.glx.MESA_swap_control)
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_glfw.glx.SwapIntervalMESA(interval);
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else if (_glfw.glx.SGI_swap_control)
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{
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if (interval > 0)
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_glfw.glx.SwapIntervalSGI(interval);
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}
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}
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static int extensionSupportedGLX(const char* extension)
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{
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const char* extensions =
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glXQueryExtensionsString(_glfw.x11.display, _glfw.x11.screen);
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if (extensions)
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{
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if (_glfwStringInExtensionString(extension, extensions))
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return GLFW_TRUE;
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}
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return GLFW_FALSE;
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}
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static GLFWglproc getProcAddressGLX(const char* procname)
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{
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if (_glfw.glx.GetProcAddress)
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return _glfw.glx.GetProcAddress((const GLubyte*) procname);
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else if (_glfw.glx.GetProcAddressARB)
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return _glfw.glx.GetProcAddressARB((const GLubyte*) procname);
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else
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return _glfw_dlsym(_glfw.glx.handle, procname);
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}
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static void destroyContextGLX(_GLFWwindow* window)
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{
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if (window->context.glx.window)
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{
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glXDestroyWindow(_glfw.x11.display, window->context.glx.window);
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window->context.glx.window = None;
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}
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if (window->context.glx.handle)
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{
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glXDestroyContext(_glfw.x11.display, window->context.glx.handle);
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window->context.glx.handle = NULL;
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}
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}
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//////////////////////////////////////////////////////////////////////////
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////// GLFW internal API //////
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//////////////////////////////////////////////////////////////////////////
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// Initialize GLX
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//
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GLFWbool _glfwInitGLX(void)
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{
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int i;
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const char* sonames[] =
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{
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#if defined(_GLFW_GLX_LIBRARY)
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_GLFW_GLX_LIBRARY,
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#elif defined(__CYGWIN__)
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"libGL-1.so",
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#elif defined(__OpenBSD__) || defined(__NetBSD__)
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"libGL.so",
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#else
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"libGL.so.1",
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"libGL.so",
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#endif
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NULL
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};
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if (_glfw.glx.handle)
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return GLFW_TRUE;
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for (i = 0; sonames[i]; i++)
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{
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_glfw.glx.handle = _glfw_dlopen(sonames[i]);
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if (_glfw.glx.handle)
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break;
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}
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if (!_glfw.glx.handle)
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{
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_glfwInputError(GLFW_API_UNAVAILABLE, "GLX: Failed to load GLX");
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return GLFW_FALSE;
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}
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_glfw.glx.GetFBConfigs =
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_glfw_dlsym(_glfw.glx.handle, "glXGetFBConfigs");
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_glfw.glx.GetFBConfigAttrib =
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_glfw_dlsym(_glfw.glx.handle, "glXGetFBConfigAttrib");
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_glfw.glx.GetClientString =
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_glfw_dlsym(_glfw.glx.handle, "glXGetClientString");
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_glfw.glx.QueryExtension =
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_glfw_dlsym(_glfw.glx.handle, "glXQueryExtension");
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_glfw.glx.QueryVersion =
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_glfw_dlsym(_glfw.glx.handle, "glXQueryVersion");
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_glfw.glx.DestroyContext =
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_glfw_dlsym(_glfw.glx.handle, "glXDestroyContext");
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_glfw.glx.MakeCurrent =
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_glfw_dlsym(_glfw.glx.handle, "glXMakeCurrent");
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_glfw.glx.SwapBuffers =
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_glfw_dlsym(_glfw.glx.handle, "glXSwapBuffers");
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_glfw.glx.QueryExtensionsString =
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_glfw_dlsym(_glfw.glx.handle, "glXQueryExtensionsString");
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_glfw.glx.CreateNewContext =
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_glfw_dlsym(_glfw.glx.handle, "glXCreateNewContext");
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_glfw.glx.CreateWindow =
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_glfw_dlsym(_glfw.glx.handle, "glXCreateWindow");
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_glfw.glx.DestroyWindow =
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_glfw_dlsym(_glfw.glx.handle, "glXDestroyWindow");
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_glfw.glx.GetVisualFromFBConfig =
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_glfw_dlsym(_glfw.glx.handle, "glXGetVisualFromFBConfig");
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if (!_glfw.glx.GetFBConfigs ||
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!_glfw.glx.GetFBConfigAttrib ||
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!_glfw.glx.GetClientString ||
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!_glfw.glx.QueryExtension ||
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!_glfw.glx.QueryVersion ||
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!_glfw.glx.DestroyContext ||
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!_glfw.glx.MakeCurrent ||
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!_glfw.glx.SwapBuffers ||
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!_glfw.glx.QueryExtensionsString ||
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!_glfw.glx.CreateNewContext ||
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!_glfw.glx.CreateWindow ||
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!_glfw.glx.DestroyWindow ||
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!_glfw.glx.GetVisualFromFBConfig)
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{
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_glfwInputError(GLFW_PLATFORM_ERROR,
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"GLX: Failed to load required entry points");
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return GLFW_FALSE;
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}
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// NOTE: Unlike GLX 1.3 entry points these are not required to be present
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_glfw.glx.GetProcAddress = (PFNGLXGETPROCADDRESSPROC)
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_glfw_dlsym(_glfw.glx.handle, "glXGetProcAddress");
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_glfw.glx.GetProcAddressARB = (PFNGLXGETPROCADDRESSPROC)
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_glfw_dlsym(_glfw.glx.handle, "glXGetProcAddressARB");
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if (!glXQueryExtension(_glfw.x11.display,
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&_glfw.glx.errorBase,
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&_glfw.glx.eventBase))
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{
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_glfwInputError(GLFW_API_UNAVAILABLE, "GLX: GLX extension not found");
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return GLFW_FALSE;
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}
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if (!glXQueryVersion(_glfw.x11.display, &_glfw.glx.major, &_glfw.glx.minor))
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{
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_glfwInputError(GLFW_API_UNAVAILABLE,
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"GLX: Failed to query GLX version");
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return GLFW_FALSE;
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}
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if (_glfw.glx.major == 1 && _glfw.glx.minor < 3)
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{
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_glfwInputError(GLFW_API_UNAVAILABLE,
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"GLX: GLX version 1.3 is required");
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return GLFW_FALSE;
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}
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if (extensionSupportedGLX("GLX_EXT_swap_control"))
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{
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_glfw.glx.SwapIntervalEXT = (PFNGLXSWAPINTERVALEXTPROC)
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getProcAddressGLX("glXSwapIntervalEXT");
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if (_glfw.glx.SwapIntervalEXT)
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_glfw.glx.EXT_swap_control = GLFW_TRUE;
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}
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if (extensionSupportedGLX("GLX_SGI_swap_control"))
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{
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_glfw.glx.SwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)
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getProcAddressGLX("glXSwapIntervalSGI");
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if (_glfw.glx.SwapIntervalSGI)
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_glfw.glx.SGI_swap_control = GLFW_TRUE;
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}
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if (extensionSupportedGLX("GLX_MESA_swap_control"))
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{
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_glfw.glx.SwapIntervalMESA = (PFNGLXSWAPINTERVALMESAPROC)
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getProcAddressGLX("glXSwapIntervalMESA");
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if (_glfw.glx.SwapIntervalMESA)
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_glfw.glx.MESA_swap_control = GLFW_TRUE;
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}
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if (extensionSupportedGLX("GLX_ARB_multisample"))
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_glfw.glx.ARB_multisample = GLFW_TRUE;
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if (extensionSupportedGLX("GLX_ARB_framebuffer_sRGB"))
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_glfw.glx.ARB_framebuffer_sRGB = GLFW_TRUE;
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if (extensionSupportedGLX("GLX_EXT_framebuffer_sRGB"))
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_glfw.glx.EXT_framebuffer_sRGB = GLFW_TRUE;
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if (extensionSupportedGLX("GLX_ARB_create_context"))
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{
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_glfw.glx.CreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC)
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getProcAddressGLX("glXCreateContextAttribsARB");
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if (_glfw.glx.CreateContextAttribsARB)
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_glfw.glx.ARB_create_context = GLFW_TRUE;
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}
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if (extensionSupportedGLX("GLX_ARB_create_context_robustness"))
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_glfw.glx.ARB_create_context_robustness = GLFW_TRUE;
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if (extensionSupportedGLX("GLX_ARB_create_context_profile"))
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_glfw.glx.ARB_create_context_profile = GLFW_TRUE;
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if (extensionSupportedGLX("GLX_EXT_create_context_es2_profile"))
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_glfw.glx.EXT_create_context_es2_profile = GLFW_TRUE;
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if (extensionSupportedGLX("GLX_ARB_create_context_no_error"))
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_glfw.glx.ARB_create_context_no_error = GLFW_TRUE;
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if (extensionSupportedGLX("GLX_ARB_context_flush_control"))
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_glfw.glx.ARB_context_flush_control = GLFW_TRUE;
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return GLFW_TRUE;
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}
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// Terminate GLX
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//
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void _glfwTerminateGLX(void)
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{
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// NOTE: This function must not call any X11 functions, as it is called
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// after XCloseDisplay (see _glfwPlatformTerminate for details)
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if (_glfw.glx.handle)
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{
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_glfw_dlclose(_glfw.glx.handle);
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_glfw.glx.handle = NULL;
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}
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}
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#define setAttrib(a, v) \
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{ \
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assert(((size_t) index + 1) < sizeof(attribs) / sizeof(attribs[0])); \
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attribs[index++] = a; \
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attribs[index++] = v; \
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}
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// Create the OpenGL or OpenGL ES context
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//
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GLFWbool _glfwCreateContextGLX(_GLFWwindow* window,
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const _GLFWctxconfig* ctxconfig,
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const _GLFWfbconfig* fbconfig)
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{
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int attribs[40];
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GLXFBConfig native = NULL;
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GLXContext share = NULL;
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if (ctxconfig->share)
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share = ctxconfig->share->context.glx.handle;
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if (!chooseGLXFBConfig(fbconfig, &native))
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{
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_glfwInputError(GLFW_FORMAT_UNAVAILABLE,
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"GLX: Failed to find a suitable GLXFBConfig");
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return GLFW_FALSE;
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}
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if (ctxconfig->client == GLFW_OPENGL_ES_API)
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{
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if (!_glfw.glx.ARB_create_context ||
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!_glfw.glx.ARB_create_context_profile ||
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!_glfw.glx.EXT_create_context_es2_profile)
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{
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_glfwInputError(GLFW_API_UNAVAILABLE,
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"GLX: OpenGL ES requested but GLX_EXT_create_context_es2_profile is unavailable");
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return GLFW_FALSE;
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}
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}
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if (ctxconfig->forward)
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{
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if (!_glfw.glx.ARB_create_context)
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{
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_glfwInputError(GLFW_VERSION_UNAVAILABLE,
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"GLX: Forward compatibility requested but GLX_ARB_create_context_profile is unavailable");
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return GLFW_FALSE;
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}
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}
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if (ctxconfig->profile)
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{
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if (!_glfw.glx.ARB_create_context ||
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!_glfw.glx.ARB_create_context_profile)
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{
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_glfwInputError(GLFW_VERSION_UNAVAILABLE,
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"GLX: An OpenGL profile requested but GLX_ARB_create_context_profile is unavailable");
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return GLFW_FALSE;
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}
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}
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_glfwGrabErrorHandlerX11();
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if (_glfw.glx.ARB_create_context)
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{
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int index = 0, mask = 0, flags = 0;
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if (ctxconfig->client == GLFW_OPENGL_API)
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{
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if (ctxconfig->forward)
|
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flags |= GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB;
|
|
|
|
if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE)
|
|
mask |= GLX_CONTEXT_CORE_PROFILE_BIT_ARB;
|
|
else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE)
|
|
mask |= GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB;
|
|
}
|
|
else
|
|
mask |= GLX_CONTEXT_ES2_PROFILE_BIT_EXT;
|
|
|
|
if (ctxconfig->debug)
|
|
flags |= GLX_CONTEXT_DEBUG_BIT_ARB;
|
|
|
|
if (ctxconfig->robustness)
|
|
{
|
|
if (_glfw.glx.ARB_create_context_robustness)
|
|
{
|
|
if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION)
|
|
{
|
|
setAttrib(GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
|
|
GLX_NO_RESET_NOTIFICATION_ARB);
|
|
}
|
|
else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET)
|
|
{
|
|
setAttrib(GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB,
|
|
GLX_LOSE_CONTEXT_ON_RESET_ARB);
|
|
}
|
|
|
|
flags |= GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB;
|
|
}
|
|
}
|
|
|
|
if (ctxconfig->release)
|
|
{
|
|
if (_glfw.glx.ARB_context_flush_control)
|
|
{
|
|
if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_NONE)
|
|
{
|
|
setAttrib(GLX_CONTEXT_RELEASE_BEHAVIOR_ARB,
|
|
GLX_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB);
|
|
}
|
|
else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH)
|
|
{
|
|
setAttrib(GLX_CONTEXT_RELEASE_BEHAVIOR_ARB,
|
|
GLX_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ctxconfig->noerror)
|
|
{
|
|
if (_glfw.glx.ARB_create_context_no_error)
|
|
setAttrib(GLX_CONTEXT_OPENGL_NO_ERROR_ARB, GLFW_TRUE);
|
|
}
|
|
|
|
// NOTE: Only request an explicitly versioned context when necessary, as
|
|
// explicitly requesting version 1.0 does not always return the
|
|
// highest version supported by the driver
|
|
if (ctxconfig->major != 1 || ctxconfig->minor != 0)
|
|
{
|
|
setAttrib(GLX_CONTEXT_MAJOR_VERSION_ARB, ctxconfig->major);
|
|
setAttrib(GLX_CONTEXT_MINOR_VERSION_ARB, ctxconfig->minor);
|
|
}
|
|
|
|
if (mask)
|
|
setAttrib(GLX_CONTEXT_PROFILE_MASK_ARB, mask);
|
|
|
|
if (flags)
|
|
setAttrib(GLX_CONTEXT_FLAGS_ARB, flags);
|
|
|
|
setAttrib(None, None);
|
|
|
|
window->context.glx.handle =
|
|
_glfw.glx.CreateContextAttribsARB(_glfw.x11.display,
|
|
native,
|
|
share,
|
|
True,
|
|
attribs);
|
|
|
|
// HACK: This is a fallback for broken versions of the Mesa
|
|
// implementation of GLX_ARB_create_context_profile that fail
|
|
// default 1.0 context creation with a GLXBadProfileARB error in
|
|
// violation of the extension spec
|
|
if (!window->context.glx.handle)
|
|
{
|
|
if (_glfw.x11.errorCode == _glfw.glx.errorBase + GLXBadProfileARB &&
|
|
ctxconfig->client == GLFW_OPENGL_API &&
|
|
ctxconfig->profile == GLFW_OPENGL_ANY_PROFILE &&
|
|
ctxconfig->forward == GLFW_FALSE)
|
|
{
|
|
window->context.glx.handle =
|
|
createLegacyContextGLX(window, native, share);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
window->context.glx.handle =
|
|
createLegacyContextGLX(window, native, share);
|
|
}
|
|
|
|
_glfwReleaseErrorHandlerX11();
|
|
|
|
if (!window->context.glx.handle)
|
|
{
|
|
_glfwInputErrorX11(GLFW_VERSION_UNAVAILABLE, "GLX: Failed to create context");
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
window->context.glx.window =
|
|
glXCreateWindow(_glfw.x11.display, native, window->x11.handle, NULL);
|
|
if (!window->context.glx.window)
|
|
{
|
|
_glfwInputError(GLFW_PLATFORM_ERROR, "GLX: Failed to create window");
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
window->context.makeCurrent = makeContextCurrentGLX;
|
|
window->context.swapBuffers = swapBuffersGLX;
|
|
window->context.swapInterval = swapIntervalGLX;
|
|
window->context.extensionSupported = extensionSupportedGLX;
|
|
window->context.getProcAddress = getProcAddressGLX;
|
|
window->context.destroy = destroyContextGLX;
|
|
|
|
return GLFW_TRUE;
|
|
}
|
|
|
|
#undef setAttrib
|
|
|
|
// Returns the Visual and depth of the chosen GLXFBConfig
|
|
//
|
|
GLFWbool _glfwChooseVisualGLX(const _GLFWwndconfig* wndconfig,
|
|
const _GLFWctxconfig* ctxconfig,
|
|
const _GLFWfbconfig* fbconfig,
|
|
Visual** visual, int* depth)
|
|
{
|
|
GLXFBConfig native;
|
|
XVisualInfo* result;
|
|
|
|
if (!chooseGLXFBConfig(fbconfig, &native))
|
|
{
|
|
_glfwInputError(GLFW_FORMAT_UNAVAILABLE,
|
|
"GLX: Failed to find a suitable GLXFBConfig");
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
result = glXGetVisualFromFBConfig(_glfw.x11.display, native);
|
|
if (!result)
|
|
{
|
|
_glfwInputError(GLFW_PLATFORM_ERROR,
|
|
"GLX: Failed to retrieve Visual for GLXFBConfig");
|
|
return GLFW_FALSE;
|
|
}
|
|
|
|
*visual = result->visual;
|
|
*depth = result->depth;
|
|
|
|
XFree(result);
|
|
return GLFW_TRUE;
|
|
}
|
|
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
////// GLFW native API //////
|
|
//////////////////////////////////////////////////////////////////////////
|
|
|
|
GLFWAPI GLXContext glfwGetGLXContext(GLFWwindow* handle)
|
|
{
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
_GLFW_REQUIRE_INIT_OR_RETURN(NULL);
|
|
|
|
if (window->context.source != GLFW_NATIVE_CONTEXT_API)
|
|
{
|
|
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
|
|
return NULL;
|
|
}
|
|
|
|
return window->context.glx.handle;
|
|
}
|
|
|
|
GLFWAPI GLXWindow glfwGetGLXWindow(GLFWwindow* handle)
|
|
{
|
|
_GLFWwindow* window = (_GLFWwindow*) handle;
|
|
_GLFW_REQUIRE_INIT_OR_RETURN(None);
|
|
|
|
if (window->context.source != GLFW_NATIVE_CONTEXT_API)
|
|
{
|
|
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL);
|
|
return None;
|
|
}
|
|
|
|
return window->context.glx.window;
|
|
}
|
|
|