add opengl 2.1 support, update imgui, update premake script
This commit is contained in:
Irlan
312
external/glad_2/glad_glx.c
vendored
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312
external/glad_2/glad_glx.c
vendored
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/*
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GLX loader generated by glad 0.1.12a0 on Tue Dec 20 17:04:11 2016.
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Language/Generator: C/C++
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Specification: glx
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APIs: glx=1.4
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Profile: -
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Extensions:
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Loader: True
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Local files: False
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Omit khrplatform: False
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Commandline:
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--api="glx=1.4" --generator="c" --spec="glx" --extensions=""
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Online:
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http://glad.dav1d.de/#language=c&specification=glx&loader=on&api=glx%3D1.4
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <glad/glad_glx.h>
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static void* get_proc(const char *namez);
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#ifdef _WIN32
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#include <windows.h>
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static HMODULE libGL;
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typedef void* (APIENTRYP PFNWGLGETPROCADDRESSPROC_PRIVATE)(const char*);
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PFNWGLGETPROCADDRESSPROC_PRIVATE gladGetProcAddressPtr;
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static
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int open_gl(void) {
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libGL = LoadLibraryW(L"opengl32.dll");
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if(libGL != NULL) {
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gladGetProcAddressPtr = (PFNWGLGETPROCADDRESSPROC_PRIVATE)GetProcAddress(
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libGL, "wglGetProcAddress");
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return gladGetProcAddressPtr != NULL;
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}
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return 0;
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}
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static
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void close_gl(void) {
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if(libGL != NULL) {
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FreeLibrary(libGL);
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libGL = NULL;
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}
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}
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#else
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#include <dlfcn.h>
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static void* libGL;
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#ifndef __APPLE__
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typedef void* (APIENTRYP PFNGLXGETPROCADDRESSPROC_PRIVATE)(const char*);
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PFNGLXGETPROCADDRESSPROC_PRIVATE gladGetProcAddressPtr;
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#endif
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static
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int open_gl(void) {
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#ifdef __APPLE__
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static const char *NAMES[] = {
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"../Frameworks/OpenGL.framework/OpenGL",
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"/Library/Frameworks/OpenGL.framework/OpenGL",
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"/System/Library/Frameworks/OpenGL.framework/OpenGL",
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"/System/Library/Frameworks/OpenGL.framework/Versions/Current/OpenGL"
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};
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#else
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static const char *NAMES[] = {"libGL.so.1", "libGL.so"};
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#endif
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unsigned int index = 0;
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for(index = 0; index < (sizeof(NAMES) / sizeof(NAMES[0])); index++) {
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libGL = dlopen(NAMES[index], RTLD_NOW | RTLD_GLOBAL);
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if(libGL != NULL) {
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#ifdef __APPLE__
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return 1;
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#else
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gladGetProcAddressPtr = (PFNGLXGETPROCADDRESSPROC_PRIVATE)dlsym(libGL,
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"glXGetProcAddressARB");
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return gladGetProcAddressPtr != NULL;
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#endif
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}
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}
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return 0;
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}
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static
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void close_gl() {
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if(libGL != NULL) {
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dlclose(libGL);
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libGL = NULL;
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}
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}
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#endif
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static
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void* get_proc(const char *namez) {
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void* result = NULL;
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if(libGL == NULL) return NULL;
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#ifndef __APPLE__
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if(gladGetProcAddressPtr != NULL) {
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result = gladGetProcAddressPtr(namez);
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}
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#endif
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if(result == NULL) {
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#ifdef _WIN32
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result = (void*)GetProcAddress(libGL, namez);
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#else
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result = dlsym(libGL, namez);
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#endif
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}
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return result;
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}
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int gladLoadGLX(Display *dpy, int screen) {
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int status = 0;
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if(open_gl()) {
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status = gladLoadGLXLoader((GLADloadproc)get_proc, dpy, screen);
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close_gl();
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}
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return status;
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}
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static Display *GLADGLXDisplay = 0;
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static int GLADGLXscreen = 0;
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static int get_exts(void) {
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return 1;
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}
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static void free_exts(void) {
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return;
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}
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static int has_ext(const char *ext) {
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const char *terminator;
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const char *loc;
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const char *extensions;
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if(!GLAD_GLX_VERSION_1_1)
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return 0;
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extensions = glXQueryExtensionsString(GLADGLXDisplay, GLADGLXscreen);
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if(extensions == NULL || ext == NULL)
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return 0;
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while(1) {
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loc = strstr(extensions, ext);
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if(loc == NULL)
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break;
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terminator = loc + strlen(ext);
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if((loc == extensions || *(loc - 1) == ' ') &&
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(*terminator == ' ' || *terminator == '\0'))
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{
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return 1;
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}
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extensions = terminator;
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}
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return 0;
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}
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int GLAD_GLX_VERSION_1_0;
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int GLAD_GLX_VERSION_1_1;
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int GLAD_GLX_VERSION_1_2;
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int GLAD_GLX_VERSION_1_3;
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int GLAD_GLX_VERSION_1_4;
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PFNGLXGETSELECTEDEVENTPROC glad_glXGetSelectedEvent;
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PFNGLXQUERYEXTENSIONPROC glad_glXQueryExtension;
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PFNGLXMAKECURRENTPROC glad_glXMakeCurrent;
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PFNGLXSELECTEVENTPROC glad_glXSelectEvent;
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PFNGLXCREATECONTEXTPROC glad_glXCreateContext;
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PFNGLXCREATEGLXPIXMAPPROC glad_glXCreateGLXPixmap;
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PFNGLXQUERYVERSIONPROC glad_glXQueryVersion;
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PFNGLXGETCURRENTREADDRAWABLEPROC glad_glXGetCurrentReadDrawable;
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PFNGLXDESTROYPIXMAPPROC glad_glXDestroyPixmap;
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PFNGLXGETCURRENTCONTEXTPROC glad_glXGetCurrentContext;
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PFNGLXGETPROCADDRESSPROC glad_glXGetProcAddress;
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PFNGLXWAITGLPROC glad_glXWaitGL;
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PFNGLXISDIRECTPROC glad_glXIsDirect;
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PFNGLXDESTROYWINDOWPROC glad_glXDestroyWindow;
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PFNGLXCREATEWINDOWPROC glad_glXCreateWindow;
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PFNGLXCOPYCONTEXTPROC glad_glXCopyContext;
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PFNGLXCREATEPBUFFERPROC glad_glXCreatePbuffer;
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PFNGLXSWAPBUFFERSPROC glad_glXSwapBuffers;
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PFNGLXGETCURRENTDISPLAYPROC glad_glXGetCurrentDisplay;
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PFNGLXGETCURRENTDRAWABLEPROC glad_glXGetCurrentDrawable;
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PFNGLXQUERYCONTEXTPROC glad_glXQueryContext;
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PFNGLXCHOOSEVISUALPROC glad_glXChooseVisual;
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PFNGLXQUERYSERVERSTRINGPROC glad_glXQueryServerString;
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PFNGLXDESTROYCONTEXTPROC glad_glXDestroyContext;
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PFNGLXDESTROYGLXPIXMAPPROC glad_glXDestroyGLXPixmap;
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PFNGLXGETFBCONFIGATTRIBPROC glad_glXGetFBConfigAttrib;
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PFNGLXUSEXFONTPROC glad_glXUseXFont;
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PFNGLXDESTROYPBUFFERPROC glad_glXDestroyPbuffer;
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PFNGLXCHOOSEFBCONFIGPROC glad_glXChooseFBConfig;
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PFNGLXCREATENEWCONTEXTPROC glad_glXCreateNewContext;
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PFNGLXMAKECONTEXTCURRENTPROC glad_glXMakeContextCurrent;
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PFNGLXGETCONFIGPROC glad_glXGetConfig;
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PFNGLXGETFBCONFIGSPROC glad_glXGetFBConfigs;
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PFNGLXCREATEPIXMAPPROC glad_glXCreatePixmap;
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PFNGLXWAITXPROC glad_glXWaitX;
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PFNGLXGETVISUALFROMFBCONFIGPROC glad_glXGetVisualFromFBConfig;
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PFNGLXQUERYDRAWABLEPROC glad_glXQueryDrawable;
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PFNGLXQUERYEXTENSIONSSTRINGPROC glad_glXQueryExtensionsString;
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PFNGLXGETCLIENTSTRINGPROC glad_glXGetClientString;
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static void load_GLX_VERSION_1_0(GLADloadproc load) {
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if(!GLAD_GLX_VERSION_1_0) return;
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glad_glXChooseVisual = (PFNGLXCHOOSEVISUALPROC)load("glXChooseVisual");
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glad_glXCreateContext = (PFNGLXCREATECONTEXTPROC)load("glXCreateContext");
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glad_glXDestroyContext = (PFNGLXDESTROYCONTEXTPROC)load("glXDestroyContext");
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glad_glXMakeCurrent = (PFNGLXMAKECURRENTPROC)load("glXMakeCurrent");
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glad_glXCopyContext = (PFNGLXCOPYCONTEXTPROC)load("glXCopyContext");
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glad_glXSwapBuffers = (PFNGLXSWAPBUFFERSPROC)load("glXSwapBuffers");
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glad_glXCreateGLXPixmap = (PFNGLXCREATEGLXPIXMAPPROC)load("glXCreateGLXPixmap");
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glad_glXDestroyGLXPixmap = (PFNGLXDESTROYGLXPIXMAPPROC)load("glXDestroyGLXPixmap");
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glad_glXQueryExtension = (PFNGLXQUERYEXTENSIONPROC)load("glXQueryExtension");
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glad_glXQueryVersion = (PFNGLXQUERYVERSIONPROC)load("glXQueryVersion");
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glad_glXIsDirect = (PFNGLXISDIRECTPROC)load("glXIsDirect");
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glad_glXGetConfig = (PFNGLXGETCONFIGPROC)load("glXGetConfig");
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glad_glXGetCurrentContext = (PFNGLXGETCURRENTCONTEXTPROC)load("glXGetCurrentContext");
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glad_glXGetCurrentDrawable = (PFNGLXGETCURRENTDRAWABLEPROC)load("glXGetCurrentDrawable");
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glad_glXWaitGL = (PFNGLXWAITGLPROC)load("glXWaitGL");
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glad_glXWaitX = (PFNGLXWAITXPROC)load("glXWaitX");
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glad_glXUseXFont = (PFNGLXUSEXFONTPROC)load("glXUseXFont");
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}
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static void load_GLX_VERSION_1_1(GLADloadproc load) {
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if(!GLAD_GLX_VERSION_1_1) return;
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glad_glXQueryExtensionsString = (PFNGLXQUERYEXTENSIONSSTRINGPROC)load("glXQueryExtensionsString");
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glad_glXQueryServerString = (PFNGLXQUERYSERVERSTRINGPROC)load("glXQueryServerString");
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glad_glXGetClientString = (PFNGLXGETCLIENTSTRINGPROC)load("glXGetClientString");
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}
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static void load_GLX_VERSION_1_2(GLADloadproc load) {
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if(!GLAD_GLX_VERSION_1_2) return;
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glad_glXGetCurrentDisplay = (PFNGLXGETCURRENTDISPLAYPROC)load("glXGetCurrentDisplay");
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}
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static void load_GLX_VERSION_1_3(GLADloadproc load) {
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if(!GLAD_GLX_VERSION_1_3) return;
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glad_glXGetFBConfigs = (PFNGLXGETFBCONFIGSPROC)load("glXGetFBConfigs");
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glad_glXChooseFBConfig = (PFNGLXCHOOSEFBCONFIGPROC)load("glXChooseFBConfig");
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glad_glXGetFBConfigAttrib = (PFNGLXGETFBCONFIGATTRIBPROC)load("glXGetFBConfigAttrib");
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glad_glXGetVisualFromFBConfig = (PFNGLXGETVISUALFROMFBCONFIGPROC)load("glXGetVisualFromFBConfig");
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glad_glXCreateWindow = (PFNGLXCREATEWINDOWPROC)load("glXCreateWindow");
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glad_glXDestroyWindow = (PFNGLXDESTROYWINDOWPROC)load("glXDestroyWindow");
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glad_glXCreatePixmap = (PFNGLXCREATEPIXMAPPROC)load("glXCreatePixmap");
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glad_glXDestroyPixmap = (PFNGLXDESTROYPIXMAPPROC)load("glXDestroyPixmap");
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glad_glXCreatePbuffer = (PFNGLXCREATEPBUFFERPROC)load("glXCreatePbuffer");
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glad_glXDestroyPbuffer = (PFNGLXDESTROYPBUFFERPROC)load("glXDestroyPbuffer");
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glad_glXQueryDrawable = (PFNGLXQUERYDRAWABLEPROC)load("glXQueryDrawable");
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glad_glXCreateNewContext = (PFNGLXCREATENEWCONTEXTPROC)load("glXCreateNewContext");
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glad_glXMakeContextCurrent = (PFNGLXMAKECONTEXTCURRENTPROC)load("glXMakeContextCurrent");
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glad_glXGetCurrentReadDrawable = (PFNGLXGETCURRENTREADDRAWABLEPROC)load("glXGetCurrentReadDrawable");
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glad_glXQueryContext = (PFNGLXQUERYCONTEXTPROC)load("glXQueryContext");
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glad_glXSelectEvent = (PFNGLXSELECTEVENTPROC)load("glXSelectEvent");
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glad_glXGetSelectedEvent = (PFNGLXGETSELECTEDEVENTPROC)load("glXGetSelectedEvent");
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}
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static void load_GLX_VERSION_1_4(GLADloadproc load) {
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if(!GLAD_GLX_VERSION_1_4) return;
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glad_glXGetProcAddress = (PFNGLXGETPROCADDRESSPROC)load("glXGetProcAddress");
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}
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static int find_extensionsGLX(void) {
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if (!get_exts()) return 0;
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free_exts();
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return 1;
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}
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static void find_coreGLX(Display *dpy, int screen) {
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int major = 0, minor = 0;
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if(dpy == 0 && GLADGLXDisplay == 0) {
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dpy = XOpenDisplay(0);
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screen = XScreenNumberOfScreen(XDefaultScreenOfDisplay(dpy));
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} else if(dpy == 0) {
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dpy = GLADGLXDisplay;
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screen = GLADGLXscreen;
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}
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glXQueryVersion(dpy, &major, &minor);
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GLADGLXDisplay = dpy;
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GLADGLXscreen = screen;
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GLAD_GLX_VERSION_1_0 = (major == 1 && minor >= 0) || major > 1;
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GLAD_GLX_VERSION_1_1 = (major == 1 && minor >= 1) || major > 1;
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GLAD_GLX_VERSION_1_2 = (major == 1 && minor >= 2) || major > 1;
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GLAD_GLX_VERSION_1_3 = (major == 1 && minor >= 3) || major > 1;
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GLAD_GLX_VERSION_1_4 = (major == 1 && minor >= 4) || major > 1;
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}
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int gladLoadGLXLoader(GLADloadproc load, Display *dpy, int screen) {
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glXQueryVersion = (PFNGLXQUERYVERSIONPROC)load("glXQueryVersion");
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if(glXQueryVersion == NULL) return 0;
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find_coreGLX(dpy, screen);
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load_GLX_VERSION_1_0(load);
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load_GLX_VERSION_1_1(load);
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load_GLX_VERSION_1_2(load);
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load_GLX_VERSION_1_3(load);
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load_GLX_VERSION_1_4(load);
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if (!find_extensionsGLX()) return 0;
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return 1;
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}
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