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added glad generator and a glad runtime

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This commit is contained in:
Hartmut Seichter 2017-06-29 07:15:32 +02:00
parent 2017f6195e
commit ac18a84a9c
62 changed files with 32373 additions and 10 deletions
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132
tools/glad-0.1.14a0/glad/lang/c/loader/__init__.py Normal file
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@ -0,0 +1,132 @@
LOAD_OPENGL_DLL = '''
%(pre)s void* %(proc)s(const char *namez);
#ifdef _WIN32
#include <windows.h>
static HMODULE libGL;
typedef void* (APIENTRYP PFNWGLGETPROCADDRESSPROC_PRIVATE)(const char*);
static PFNWGLGETPROCADDRESSPROC_PRIVATE gladGetProcAddressPtr;
%(pre)s
int %(init)s(void) {
libGL = LoadLibraryW(L"opengl32.dll");
if(libGL != NULL) {
gladGetProcAddressPtr = (PFNWGLGETPROCADDRESSPROC_PRIVATE)GetProcAddress(
libGL, "wglGetProcAddress");
return gladGetProcAddressPtr != NULL;
}
return 0;
}
%(pre)s
void %(terminate)s(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
%(pre)s
int %(init)s(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;
}
%(pre)s
void %(terminate)s() {
if(libGL != NULL) {
dlclose(libGL);
libGL = NULL;
}
}
#endif
%(pre)s
void* %(proc)s(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;
}
'''
LOAD_OPENGL_DLL_H = '''
'''
LOAD_OPENGL_GLAPI_H = '''
#ifndef GLAPI
# if defined(GLAD_GLAPI_EXPORT)
# if defined(_WIN32) || defined(__CYGWIN__)
# if defined(GLAD_GLAPI_EXPORT_BUILD)
# if defined(__GNUC__)
# define GLAPI __attribute__ ((dllexport)) extern
# else
# define GLAPI __declspec(dllexport) extern
# endif
# else
# if defined(__GNUC__)
# define GLAPI __attribute__ ((dllimport)) extern
# else
# define GLAPI __declspec(dllimport) extern
# endif
# endif
# elif defined(__GNUC__) && defined(GLAD_GLAPI_EXPORT_BUILD)
# define GLAPI __attribute__ ((visibility ("default"))) extern
# else
# define GLAPI extern
# endif
# else
# define GLAPI extern
# endif
#endif
'''