diff options
Diffstat (limited to 'src/egl/main/egldriver.c')
-rw-r--r-- | src/egl/main/egldriver.c | 118 |
1 files changed, 91 insertions, 27 deletions
diff --git a/src/egl/main/egldriver.c b/src/egl/main/egldriver.c index 4a611b9fc97..edf85abe012 100644 --- a/src/egl/main/egldriver.c +++ b/src/egl/main/egldriver.c @@ -35,6 +35,44 @@ static const char *SysFS = "/sys/class"; +/** + * Wrappers for dlopen/dlclose() + */ +#if defined(_EGL_PLATFORM_WINDOWS) + + typedef HMODULE lib_handle; + + static HMODULE + open_library(const char *filename) + { + return LoadLibrary(filename); + } + + static void + close_library(HMODULE lib) + { + FreeLibrary(lib); + } + +#elif defined(_EGL_PLATFORM_X) + + typedef void * lib_handle; + + static void * + open_library(const char *filename) + { + return dlopen(filename, RTLD_LAZY); + } + + static void + close_library(void *lib) + { + dlclose(lib); + } + +#endif + + /** * Given a card number, use sysfs to determine the DRI driver name. @@ -165,11 +203,7 @@ _eglOpenDriver(_EGLDisplay *dpy, const char *driverName, const char *args) { _EGLDriver *drv; _EGLMain_t mainFunc; -#if defined(_EGL_PLATFORM_WINDOWS) - HMODULE lib; -#elif defined(_EGL_PLATFORM_X) - void *lib; -#endif + lib_handle lib; char driverFilename[1000]; assert(driverName); @@ -178,13 +212,12 @@ _eglOpenDriver(_EGLDisplay *dpy, const char *driverName, const char *args) /* XXX untested */ sprintf(driverFilename, "%s.dll", driverName); _eglLog(_EGL_DEBUG, "dlopen(%s)", driverFilename); - lib = LoadLibrary(driverFilename); #elif defined(_EGL_PLATFORM_X) /* XXX also prepend a directory path??? */ sprintf(driverFilename, "%s.so", driverName); _eglLog(_EGL_DEBUG, "dlopen(%s)", driverFilename); - lib = dlopen(driverFilename, RTLD_LAZY); #endif + lib = open_library(driverFilename); if (!lib) { _eglLog(_EGL_WARNING, "Could not open %s (%s)", @@ -200,21 +233,13 @@ _eglOpenDriver(_EGLDisplay *dpy, const char *driverName, const char *args) if (!mainFunc) { _eglLog(_EGL_WARNING, "_eglMain not found in %s", driverFilename); -#if defined(_EGL_PLATFORM_WINDOWS) - FreeLibrary(lib); -#elif defined(_EGL_PLATFORM_X) - dlclose(lib); -#endif + close_library(lib); return NULL; } drv = mainFunc(dpy, args); if (!drv) { -#if defined(_EGL_PLATFORM_WINDOWS) - FreeLibrary(lib); -#elif defined(_EGL_PLATFORM_X) - dlclose(lib); -#endif + close_library(lib); return NULL; } @@ -223,11 +248,7 @@ _eglOpenDriver(_EGLDisplay *dpy, const char *driverName, const char *args) drv->LibHandle = lib; } else { -#if defined(_EGL_PLATFORM_WINDOWS) - FreeLibrary(lib); -#elif defined(_EGL_PLATFORM_X) - dlclose(lib); -#endif + close_library(lib); } /* update the global notion of supported APIs */ @@ -253,11 +274,7 @@ _eglCloseDriver(_EGLDriver *drv, EGLDisplay dpy) b = drv->API.Terminate(drv, dpy); -#if defined(_EGL_PLATFORM_WINDOWS) - FreeLibrary(handle); -#elif defined(_EGL_PLATFORM_X) - dlclose(handle); -#endif + close_library(handle); return b; } @@ -343,3 +360,50 @@ _eglInitDriverFallbacks(_EGLDriver *drv) drv->API.CreatePbufferFromClientBuffer = _eglCreatePbufferFromClientBuffer; #endif /* EGL_VERSION_1_2 */ } + + + +/** + * Try to determine which EGL APIs (OpenGL, OpenGL ES, OpenVG, etc) + * are supported on the system by looking for standard library names. + */ +EGLint +_eglFindAPIs(void) +{ + EGLint mask = 0x0; + lib_handle lib; +#if defined(_EGL_PLATFORM_WINDOWS) + /* XXX not sure about these names */ + const char *es1_libname = "libGLESv1_CM.dll"; + const char *es2_libname = "libGLESv2.dll"; + const char *gl_libname = "OpenGL32.dll"; + const char *vg_libname = "libOpenVG.dll"; +#elif defined(_EGL_PLATFORM_X) + const char *es1_libname = "libGLESv1_CM.so"; + const char *es2_libname = "libGLESv2.so"; + const char *gl_libname = "libGL.so"; + const char *vg_libname = "libOpenVG.so"; +#endif + + if ((lib = open_library(es1_libname))) { + close_library(lib); + mask |= EGL_OPENGL_ES_BIT; + } + + if ((lib = open_library(es2_libname))) { + close_library(lib); + mask |= EGL_OPENGL_ES2_BIT; + } + + if ((lib = open_library(gl_libname))) { + close_library(lib); + mask |= EGL_OPENGL_BIT; + } + + if ((lib = open_library(vg_libname))) { + close_library(lib); + mask |= EGL_OPENVG_BIT; + } + + return mask; +} |