Differential D721 Diff 2854 source/third_party/glad/glad_glx.cpp

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source/third_party/glad/glad_glx.cpp

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				/*

				GLX loader generated by glad 0.1.14a0 on Fri Jul 7 13:27:55 2017.

				Language/Generator: C/C++
				Specification: glx
				APIs: glx=1.4
				Profile: -
				Extensions:
				GLX_MESA_query_renderer
				Loader: True
				Local files: True
				Omit khrplatform: True

				Commandline:
				--api="glx=1.4" --generator="c" --spec="glx" --local-files --omit-khrplatform --extensions="GLX_MESA_query_renderer"
				Online:
				http://glad.dav1d.de/#language=c&specification=glx&loader=on&api=glx%3D1.4&extensions=GLX_MESA_query_renderer
				*/

				#include <stdio.h>
				#include <stdlib.h>
				#include <string.h>
				#include "glad_glx.h"

				static void* get_proc(const char *namez);

				#ifdef _WIN32
				#include <windows.h>
				static HMODULE libGL;

				typedef void* (APIENTRYP PFNWGLGETPROCADDRESSPROC_PRIVATE)(const char*);
				static PFNWGLGETPROCADDRESSPROC_PRIVATE gladGetProcAddressPtr;

				static
				int open_gl(void) {
				libGL = LoadLibraryW(L"opengl32.dll");
				if(libGL != NULL) {
				gladGetProcAddressPtr = (PFNWGLGETPROCADDRESSPROC_PRIVATE)GetProcAddress(
				libGL, "wglGetProcAddress");
				return gladGetProcAddressPtr != NULL;
				}

				return 0;
				}

				static
				void close_gl(void) {
				if(libGL != NULL) {
				FreeLibrary(libGL);
				libGL = NULL;
				}
				}
				#else
				#include <dlfcn.h>
				static void* libGL;

				#ifndef __APPLE__
				typedef void* (APIENTRYP PFNGLXGETPROCADDRESSPROC_PRIVATE)(const char*);
				static PFNGLXGETPROCADDRESSPROC_PRIVATE gladGetProcAddressPtr;
				#endif

				static
				int open_gl(void) {
				#ifdef __APPLE__
				static const char *NAMES[] = {
				"../Frameworks/OpenGL.framework/OpenGL",
				"/Library/Frameworks/OpenGL.framework/OpenGL",
				"/System/Library/Frameworks/OpenGL.framework/OpenGL",
				"/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL"
				};
				#else
				static const char *NAMES[] = {"libGL.so.1", "libGL.so"};
				#endif

				unsigned int index = 0;
				for(index = 0; index < (sizeof(NAMES) / sizeof(NAMES[0])); index++) {
				libGL = dlopen(NAMES[index], RTLD_NOW \| RTLD_GLOBAL);

				if(libGL != NULL) {
				#ifdef __APPLE__
				return 1;
				#else
				gladGetProcAddressPtr = (PFNGLXGETPROCADDRESSPROC_PRIVATE)dlsym(libGL,
				"glXGetProcAddressARB");
				return gladGetProcAddressPtr != NULL;
				#endif
				}
				}

				return 0;
				}

				static
				void close_gl() {
				if(libGL != NULL) {
				dlclose(libGL);
				libGL = NULL;
				}
				}
				#endif

				static
				void* get_proc(const char *namez) {
				void* result = NULL;
				if(libGL == NULL) return NULL;

				#ifndef __APPLE__
				if(gladGetProcAddressPtr != NULL) {
				result = gladGetProcAddressPtr(namez);
				}
				#endif
				if(result == NULL) {
				#ifdef _WIN32
				result = (void*)GetProcAddress(libGL, namez);
				#else
				result = dlsym(libGL, namez);
				#endif
				}

				return result;
				}

				int gladLoadGLX(Display *dpy, int screen) {
				int status = 0;

				if(open_gl()) {
				status = gladLoadGLXLoader((GLADloadproc)get_proc, dpy, screen);
				close_gl();
				}

				return status;
				}

				static Display *GLADGLXDisplay = 0;
				static int GLADGLXscreen = 0;

				static int get_exts(void) {
				return 1;
				}

				static void free_exts(void) {
				return;
				}

				static int has_ext(const char *ext) {
				const char *terminator;
				const char *loc;
				const char *extensions;

				if(!GLAD_GLX_VERSION_1_1)
				return 0;

				extensions = glXQueryExtensionsString(GLADGLXDisplay, GLADGLXscreen);

				if(extensions == NULL \|\| ext == NULL)
				return 0;

				while(1) {
				loc = strstr(extensions, ext);
				if(loc == NULL)
				break;

				terminator = loc + strlen(ext);
				if((loc == extensions \|\| *(loc - 1) == ' ') &&
				(terminator == ' ' \|\| terminator == '\0'))
				{
				return 1;
				}
				extensions = terminator;
				}

				return 0;
				}

				int GLAD_GLX_VERSION_1_0;
				int GLAD_GLX_VERSION_1_1;
				int GLAD_GLX_VERSION_1_2;
				int GLAD_GLX_VERSION_1_3;
				int GLAD_GLX_VERSION_1_4;
				PFNGLXDESTROYCONTEXTPROC glad_glXDestroyContext;
				PFNGLXCHOOSEVISUALPROC glad_glXChooseVisual;
				PFNGLXQUERYEXTENSIONPROC glad_glXQueryExtension;
				PFNGLXQUERYDRAWABLEPROC glad_glXQueryDrawable;
				PFNGLXUSEXFONTPROC glad_glXUseXFont;
				PFNGLXGETCONFIGPROC glad_glXGetConfig;
				PFNGLXISDIRECTPROC glad_glXIsDirect;
				PFNGLXGETCURRENTDISPLAYPROC glad_glXGetCurrentDisplay;
				PFNGLXGETCLIENTSTRINGPROC glad_glXGetClientString;
				PFNGLXQUERYVERSIONPROC glad_glXQueryVersion;
				PFNGLXCREATECONTEXTPROC glad_glXCreateContext;
				PFNGLXCHOOSEFBCONFIGPROC glad_glXChooseFBConfig;
				PFNGLXMAKECONTEXTCURRENTPROC glad_glXMakeContextCurrent;
				PFNGLXGETPROCADDRESSPROC glad_glXGetProcAddress;
				PFNGLXCREATEPIXMAPPROC glad_glXCreatePixmap;
				PFNGLXDESTROYGLXPIXMAPPROC glad_glXDestroyGLXPixmap;
				PFNGLXCREATEWINDOWPROC glad_glXCreateWindow;
				PFNGLXMAKECURRENTPROC glad_glXMakeCurrent;
				PFNGLXWAITXPROC glad_glXWaitX;
				PFNGLXCREATEGLXPIXMAPPROC glad_glXCreateGLXPixmap;
				PFNGLXGETCURRENTCONTEXTPROC glad_glXGetCurrentContext;
				PFNGLXCREATENEWCONTEXTPROC glad_glXCreateNewContext;
				PFNGLXGETFBCONFIGSPROC glad_glXGetFBConfigs;
				PFNGLXQUERYSERVERSTRINGPROC glad_glXQueryServerString;
				PFNGLXDESTROYPIXMAPPROC glad_glXDestroyPixmap;
				PFNGLXCOPYCONTEXTPROC glad_glXCopyContext;
				PFNGLXWAITGLPROC glad_glXWaitGL;
				PFNGLXGETFBCONFIGATTRIBPROC glad_glXGetFBConfigAttrib;
				PFNGLXDESTROYWINDOWPROC glad_glXDestroyWindow;
				PFNGLXQUERYCONTEXTPROC glad_glXQueryContext;
				PFNGLXSELECTEVENTPROC glad_glXSelectEvent;
				PFNGLXGETSELECTEDEVENTPROC glad_glXGetSelectedEvent;
				PFNGLXCREATEPBUFFERPROC glad_glXCreatePbuffer;
				PFNGLXSWAPBUFFERSPROC glad_glXSwapBuffers;
				PFNGLXGETCURRENTREADDRAWABLEPROC glad_glXGetCurrentReadDrawable;
				PFNGLXGETCURRENTDRAWABLEPROC glad_glXGetCurrentDrawable;
				PFNGLXDESTROYPBUFFERPROC glad_glXDestroyPbuffer;
				PFNGLXQUERYEXTENSIONSSTRINGPROC glad_glXQueryExtensionsString;
				PFNGLXGETVISUALFROMFBCONFIGPROC glad_glXGetVisualFromFBConfig;
				int GLAD_GLX_MESA_query_renderer;
				PFNGLXQUERYCURRENTRENDERERINTEGERMESAPROC glad_glXQueryCurrentRendererIntegerMESA;
				PFNGLXQUERYCURRENTRENDERERSTRINGMESAPROC glad_glXQueryCurrentRendererStringMESA;
				PFNGLXQUERYRENDERERINTEGERMESAPROC glad_glXQueryRendererIntegerMESA;
				PFNGLXQUERYRENDERERSTRINGMESAPROC glad_glXQueryRendererStringMESA;
				static void load_GLX_VERSION_1_0(GLADloadproc load) {
				if(!GLAD_GLX_VERSION_1_0) return;
				glad_glXChooseVisual = (PFNGLXCHOOSEVISUALPROC)load("glXChooseVisual");
				glad_glXCreateContext = (PFNGLXCREATECONTEXTPROC)load("glXCreateContext");
				glad_glXDestroyContext = (PFNGLXDESTROYCONTEXTPROC)load("glXDestroyContext");
				glad_glXMakeCurrent = (PFNGLXMAKECURRENTPROC)load("glXMakeCurrent");
				glad_glXCopyContext = (PFNGLXCOPYCONTEXTPROC)load("glXCopyContext");
				glad_glXSwapBuffers = (PFNGLXSWAPBUFFERSPROC)load("glXSwapBuffers");
				glad_glXCreateGLXPixmap = (PFNGLXCREATEGLXPIXMAPPROC)load("glXCreateGLXPixmap");
				glad_glXDestroyGLXPixmap = (PFNGLXDESTROYGLXPIXMAPPROC)load("glXDestroyGLXPixmap");
				glad_glXQueryExtension = (PFNGLXQUERYEXTENSIONPROC)load("glXQueryExtension");
				glad_glXQueryVersion = (PFNGLXQUERYVERSIONPROC)load("glXQueryVersion");
				glad_glXIsDirect = (PFNGLXISDIRECTPROC)load("glXIsDirect");
				glad_glXGetConfig = (PFNGLXGETCONFIGPROC)load("glXGetConfig");
				glad_glXGetCurrentContext = (PFNGLXGETCURRENTCONTEXTPROC)load("glXGetCurrentContext");
				glad_glXGetCurrentDrawable = (PFNGLXGETCURRENTDRAWABLEPROC)load("glXGetCurrentDrawable");
				glad_glXWaitGL = (PFNGLXWAITGLPROC)load("glXWaitGL");
				glad_glXWaitX = (PFNGLXWAITXPROC)load("glXWaitX");
				glad_glXUseXFont = (PFNGLXUSEXFONTPROC)load("glXUseXFont");
				}
				static void load_GLX_VERSION_1_1(GLADloadproc load) {
				if(!GLAD_GLX_VERSION_1_1) return;
				glad_glXQueryExtensionsString = (PFNGLXQUERYEXTENSIONSSTRINGPROC)load("glXQueryExtensionsString");
				glad_glXQueryServerString = (PFNGLXQUERYSERVERSTRINGPROC)load("glXQueryServerString");
				glad_glXGetClientString = (PFNGLXGETCLIENTSTRINGPROC)load("glXGetClientString");
				}
				static void load_GLX_VERSION_1_2(GLADloadproc load) {
				if(!GLAD_GLX_VERSION_1_2) return;
				glad_glXGetCurrentDisplay = (PFNGLXGETCURRENTDISPLAYPROC)load("glXGetCurrentDisplay");
				}
				static void load_GLX_VERSION_1_3(GLADloadproc load) {
				if(!GLAD_GLX_VERSION_1_3) return;
				glad_glXGetFBConfigs = (PFNGLXGETFBCONFIGSPROC)load("glXGetFBConfigs");
				glad_glXChooseFBConfig = (PFNGLXCHOOSEFBCONFIGPROC)load("glXChooseFBConfig");
				glad_glXGetFBConfigAttrib = (PFNGLXGETFBCONFIGATTRIBPROC)load("glXGetFBConfigAttrib");
				glad_glXGetVisualFromFBConfig = (PFNGLXGETVISUALFROMFBCONFIGPROC)load("glXGetVisualFromFBConfig");
				glad_glXCreateWindow = (PFNGLXCREATEWINDOWPROC)load("glXCreateWindow");
				glad_glXDestroyWindow = (PFNGLXDESTROYWINDOWPROC)load("glXDestroyWindow");
				glad_glXCreatePixmap = (PFNGLXCREATEPIXMAPPROC)load("glXCreatePixmap");
				glad_glXDestroyPixmap = (PFNGLXDESTROYPIXMAPPROC)load("glXDestroyPixmap");
				glad_glXCreatePbuffer = (PFNGLXCREATEPBUFFERPROC)load("glXCreatePbuffer");
				glad_glXDestroyPbuffer = (PFNGLXDESTROYPBUFFERPROC)load("glXDestroyPbuffer");
				glad_glXQueryDrawable = (PFNGLXQUERYDRAWABLEPROC)load("glXQueryDrawable");
				glad_glXCreateNewContext = (PFNGLXCREATENEWCONTEXTPROC)load("glXCreateNewContext");
				glad_glXMakeContextCurrent = (PFNGLXMAKECONTEXTCURRENTPROC)load("glXMakeContextCurrent");
				glad_glXGetCurrentReadDrawable = (PFNGLXGETCURRENTREADDRAWABLEPROC)load("glXGetCurrentReadDrawable");
				glad_glXQueryContext = (PFNGLXQUERYCONTEXTPROC)load("glXQueryContext");
				glad_glXSelectEvent = (PFNGLXSELECTEVENTPROC)load("glXSelectEvent");
				glad_glXGetSelectedEvent = (PFNGLXGETSELECTEDEVENTPROC)load("glXGetSelectedEvent");
				}
				static void load_GLX_VERSION_1_4(GLADloadproc load) {
				if(!GLAD_GLX_VERSION_1_4) return;
				glad_glXGetProcAddress = (PFNGLXGETPROCADDRESSPROC)load("glXGetProcAddress");
				}
				static void load_GLX_MESA_query_renderer(GLADloadproc load) {
				if(!GLAD_GLX_MESA_query_renderer) return;
				glad_glXQueryCurrentRendererIntegerMESA = (PFNGLXQUERYCURRENTRENDERERINTEGERMESAPROC)load("glXQueryCurrentRendererIntegerMESA");
				glad_glXQueryCurrentRendererStringMESA = (PFNGLXQUERYCURRENTRENDERERSTRINGMESAPROC)load("glXQueryCurrentRendererStringMESA");
				glad_glXQueryRendererIntegerMESA = (PFNGLXQUERYRENDERERINTEGERMESAPROC)load("glXQueryRendererIntegerMESA");
				glad_glXQueryRendererStringMESA = (PFNGLXQUERYRENDERERSTRINGMESAPROC)load("glXQueryRendererStringMESA");
				}
				static int find_extensionsGLX(void) {
				if (!get_exts()) return 0;
				GLAD_GLX_MESA_query_renderer = has_ext("GLX_MESA_query_renderer");
				free_exts();
				return 1;
				}

				static void find_coreGLX(Display *dpy, int screen) {
				int major = 0, minor = 0;
				if(dpy == 0 && GLADGLXDisplay == 0) {
				dpy = XOpenDisplay(0);
				screen = XScreenNumberOfScreen(XDefaultScreenOfDisplay(dpy));
				} else if(dpy == 0) {
				dpy = GLADGLXDisplay;
				screen = GLADGLXscreen;
				}
				glXQueryVersion(dpy, &major, &minor);
				GLADGLXDisplay = dpy;
				GLADGLXscreen = screen;
				GLAD_GLX_VERSION_1_0 = (major == 1 && minor >= 0) \|\| major > 1;
				GLAD_GLX_VERSION_1_1 = (major == 1 && minor >= 1) \|\| major > 1;
				GLAD_GLX_VERSION_1_2 = (major == 1 && minor >= 2) \|\| major > 1;
				GLAD_GLX_VERSION_1_3 = (major == 1 && minor >= 3) \|\| major > 1;
				GLAD_GLX_VERSION_1_4 = (major == 1 && minor >= 4) \|\| major > 1;
				}

				int gladLoadGLXLoader(GLADloadproc load, Display *dpy, int screen) {
				glXQueryVersion = (PFNGLXQUERYVERSIONPROC)load("glXQueryVersion");
				if(glXQueryVersion == NULL) return 0;
				find_coreGLX(dpy, screen);
				load_GLX_VERSION_1_0(load);
				load_GLX_VERSION_1_1(load);
				load_GLX_VERSION_1_2(load);
				load_GLX_VERSION_1_3(load);
				load_GLX_VERSION_1_4(load);

				if (!find_extensionsGLX()) return 0;
				load_GLX_MESA_query_renderer(load);
				return 1;
				}