mirror of https://github.com/encounter/SDL.git
egl: adjust how we load symbols in SDL_EGL_GetProcAddress.
Use eglGetProcAddress for everything on EGL >= 1.5. Try SDL_LoadFunction first for EGL <= 1.4 in case it's a core symbol, and as a fallback if eglGetProcAddress fails. Finally, for EGL <= 1.4, fallback to eglGetProcAddress to catch extensions not exported from the shared library. (Maybe) Fixes Bugzilla #4794.
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@ -222,12 +222,34 @@ static SDL_bool SDL_EGL_HasExtension(_THIS, SDL_EGL_ExtensionType type, const ch
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void *
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void *
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SDL_EGL_GetProcAddress(_THIS, const char *proc)
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SDL_EGL_GetProcAddress(_THIS, const char *proc)
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{
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{
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static char procname[1024];
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const Uint32 eglver = (((Uint32) _this->egl_data->egl_version_major) << 16) | ((Uint32) _this->egl_data->egl_version_minor);
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void *retval;
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const SDL_bool is_egl_15_or_later = eglver >= ((((Uint32) 1) << 16) | 5);
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void *retval = NULL;
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/* eglGetProcAddress is busted on Android http://code.google.com/p/android/issues/detail?id=7681 */
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/* eglGetProcAddress is busted on Android http://code.google.com/p/android/issues/detail?id=7681 */
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#if !defined(SDL_VIDEO_DRIVER_ANDROID)
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#if !defined(SDL_VIDEO_DRIVER_ANDROID)
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if (_this->egl_data->eglGetProcAddress) {
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/* EGL 1.5 can use eglGetProcAddress() for any symbol. 1.4 and earlier can't use it for core entry points. */
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if (!retval && is_egl_15_or_later && _this->egl_data->eglGetProcAddress) {
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retval = _this->egl_data->eglGetProcAddress(proc);
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}
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#endif
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/* Try SDL_LoadFunction() first for EGL <= 1.4, or as a fallback for >= 1.5. */
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if (!retval) {
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static char procname[64];
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retval = SDL_LoadFunction(_this->egl_data->egl_dll_handle, proc);
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/* just in case you need an underscore prepended... */
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if (!retval && (SDL_strlen(proc) < (sizeof (procname) - 1))) {
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procname[0] = '_';
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SDL_strlcpy(procname + 1, proc, sizeof (procname) - 1);
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retval = SDL_LoadFunction(_this->egl_data->egl_dll_handle, procname);
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}
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}
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/* eglGetProcAddress is busted on Android http://code.google.com/p/android/issues/detail?id=7681 */
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#if !defined(SDL_VIDEO_DRIVER_ANDROID)
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/* Try eglGetProcAddress if we on <= 1.4 and still searching... */
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if (!retval && !is_egl_15_or_later && _this->egl_data->eglGetProcAddress) {
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retval = _this->egl_data->eglGetProcAddress(proc);
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retval = _this->egl_data->eglGetProcAddress(proc);
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if (retval) {
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if (retval) {
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return retval;
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return retval;
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@ -235,12 +257,6 @@ SDL_EGL_GetProcAddress(_THIS, const char *proc)
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}
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}
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#endif
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#endif
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retval = SDL_LoadFunction(_this->egl_data->egl_dll_handle, proc);
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if (!retval && SDL_strlen(proc) <= 1022) {
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procname[0] = '_';
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SDL_strlcpy(procname + 1, proc, 1022);
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retval = SDL_LoadFunction(_this->egl_data->egl_dll_handle, procname);
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}
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return retval;
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return retval;
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}
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}
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