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677 lines
21 KiB
677 lines
21 KiB
//======================================================================== |
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// GLFW 3.3 GLX - www.glfw.org |
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//------------------------------------------------------------------------ |
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// Copyright (c) 2002-2006 Marcus Geelnard |
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// Copyright (c) 2006-2016 Camilla Löwy <elmindreda@glfw.org> |
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// |
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// This software is provided 'as-is', without any express or implied |
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// warranty. In no event will the authors be held liable for any damages |
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// arising from the use of this software. |
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// |
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// Permission is granted to anyone to use this software for any purpose, |
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// including commercial applications, and to alter it and redistribute it |
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// freely, subject to the following restrictions: |
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// |
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// 1. The origin of this software must not be misrepresented; you must not |
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// claim that you wrote the original software. If you use this software |
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// in a product, an acknowledgment in the product documentation would |
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// be appreciated but is not required. |
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// |
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// 2. Altered source versions must be plainly marked as such, and must not |
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// be misrepresented as being the original software. |
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// |
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// 3. This notice may not be removed or altered from any source |
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// distribution. |
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// |
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//======================================================================== |
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#include "internal.h" |
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|
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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, 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 (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 (!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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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 (getGLXFBConfigAttrib(n, GLX_DOUBLEBUFFER)) |
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u->doublebuffer = 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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_glfwPlatformSetCurrentContext(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 = _glfwPlatformGetCurrentContext(); |
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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 dlsym(_glfw.glx.handle, procname); |
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} |
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// Destroy the OpenGL context |
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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(__CYGWIN__) |
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"libGL-1.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 = dlopen(sonames[i], RTLD_LAZY | RTLD_GLOBAL); |
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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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dlsym(_glfw.glx.handle, "glXGetFBConfigs"); |
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_glfw.glx.GetFBConfigAttrib = |
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dlsym(_glfw.glx.handle, "glXGetFBConfigAttrib"); |
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_glfw.glx.GetClientString = |
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dlsym(_glfw.glx.handle, "glXGetClientString"); |
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_glfw.glx.QueryExtension = |
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dlsym(_glfw.glx.handle, "glXQueryExtension"); |
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_glfw.glx.QueryVersion = |
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dlsym(_glfw.glx.handle, "glXQueryVersion"); |
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_glfw.glx.DestroyContext = |
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dlsym(_glfw.glx.handle, "glXDestroyContext"); |
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_glfw.glx.MakeCurrent = |
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dlsym(_glfw.glx.handle, "glXMakeCurrent"); |
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_glfw.glx.SwapBuffers = |
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dlsym(_glfw.glx.handle, "glXSwapBuffers"); |
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_glfw.glx.QueryExtensionsString = |
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dlsym(_glfw.glx.handle, "glXQueryExtensionsString"); |
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_glfw.glx.CreateNewContext = |
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dlsym(_glfw.glx.handle, "glXCreateNewContext"); |
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_glfw.glx.CreateWindow = |
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dlsym(_glfw.glx.handle, "glXCreateWindow"); |
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_glfw.glx.DestroyWindow = |
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dlsym(_glfw.glx.handle, "glXDestroyWindow"); |
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_glfw.glx.GetProcAddress = |
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dlsym(_glfw.glx.handle, "glXGetProcAddress"); |
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_glfw.glx.GetProcAddressARB = |
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dlsym(_glfw.glx.handle, "glXGetProcAddressARB"); |
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_glfw.glx.GetVisualFromFBConfig = |
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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.GetProcAddress || |
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!_glfw.glx.GetProcAddressARB || |
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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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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_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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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 setGLXattrib(attribName, attribValue) \ |
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{ \ |
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attribs[index++] = attribName; \ |
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attribs[index++] = attribValue; \ |
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assert((size_t) index < sizeof(attribs) / sizeof(attribs[0])); \ |
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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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|
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_glfwGrabErrorHandlerX11(); |
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|
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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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|
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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; |
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|
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if (ctxconfig->profile == GLFW_OPENGL_CORE_PROFILE) |
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mask |= GLX_CONTEXT_CORE_PROFILE_BIT_ARB; |
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else if (ctxconfig->profile == GLFW_OPENGL_COMPAT_PROFILE) |
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mask |= GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB; |
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} |
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else |
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mask |= GLX_CONTEXT_ES2_PROFILE_BIT_EXT; |
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|
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if (ctxconfig->debug) |
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flags |= GLX_CONTEXT_DEBUG_BIT_ARB; |
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if (ctxconfig->noerror) |
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flags |= GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR; |
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|
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if (ctxconfig->robustness) |
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{ |
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if (_glfw.glx.ARB_create_context_robustness) |
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{ |
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if (ctxconfig->robustness == GLFW_NO_RESET_NOTIFICATION) |
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{ |
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setGLXattrib(GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, |
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GLX_NO_RESET_NOTIFICATION_ARB); |
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} |
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else if (ctxconfig->robustness == GLFW_LOSE_CONTEXT_ON_RESET) |
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{ |
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setGLXattrib(GLX_CONTEXT_RESET_NOTIFICATION_STRATEGY_ARB, |
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GLX_LOSE_CONTEXT_ON_RESET_ARB); |
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} |
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flags |= GLX_CONTEXT_ROBUST_ACCESS_BIT_ARB; |
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} |
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} |
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|
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if (ctxconfig->release) |
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{ |
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if (_glfw.glx.ARB_context_flush_control) |
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{ |
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if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_NONE) |
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{ |
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setGLXattrib(GLX_CONTEXT_RELEASE_BEHAVIOR_ARB, |
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GLX_CONTEXT_RELEASE_BEHAVIOR_NONE_ARB); |
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} |
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else if (ctxconfig->release == GLFW_RELEASE_BEHAVIOR_FLUSH) |
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{ |
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setGLXattrib(GLX_CONTEXT_RELEASE_BEHAVIOR_ARB, |
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GLX_CONTEXT_RELEASE_BEHAVIOR_FLUSH_ARB); |
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} |
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} |
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} |
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|
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// NOTE: Only request an explicitly versioned context when necessary, as |
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// explicitly requesting version 1.0 does not always return the |
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// highest version supported by the driver |
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if (ctxconfig->major != 1 || ctxconfig->minor != 0) |
|
{ |
|
setGLXattrib(GLX_CONTEXT_MAJOR_VERSION_ARB, ctxconfig->major); |
|
setGLXattrib(GLX_CONTEXT_MINOR_VERSION_ARB, ctxconfig->minor); |
|
} |
|
|
|
if (mask) |
|
setGLXattrib(GLX_CONTEXT_PROFILE_MASK_ARB, mask); |
|
|
|
if (flags) |
|
setGLXattrib(GLX_CONTEXT_FLAGS_ARB, flags); |
|
|
|
setGLXattrib(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 setGLXattrib |
|
|
|
// Returns the Visual and depth of the chosen GLXFBConfig |
|
// |
|
GLFWbool _glfwChooseVisualGLX(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.client == GLFW_NO_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.client == GLFW_NO_API) |
|
{ |
|
_glfwInputError(GLFW_NO_WINDOW_CONTEXT, NULL); |
|
return None; |
|
} |
|
|
|
return window->context.glx.window; |
|
} |
|
|
|
|