Fix for EGL preserve buffer

Author: Cedric PAILLE

include/SDL_config.h

@@ -1,3 +1,4 @@
+/* include/SDL_config.h. Generated from SDL_config.h.in by configure. */
 /*
  Simple DirectMedia Layer
  Copyright (C) 1997-2016 Sam Lantinga <slouken@libsdl.org>
@@ -22,34 +23,338 @@
 #ifndef _SDL_config_h
 #define _SDL_config_h
 
-#include "SDL_platform.h"
-
 /**
- * \file SDL_config.h
+ * \file SDL_config.h.in
+ *
+ * This is a set of defines to configure the SDL features
  */
 
-/* Add any platform that doesn't build using the configure system. */
-#ifdef USING_PREMAKE_CONFIG_H
-#include "SDL_config_premake.h"
-#elif defined(__WIN32__)
-#include "SDL_config_windows.h"
-#elif defined(__WINRT__)
-#include "SDL_config_winrt.h"
-#elif defined(__MACOSX__)
-#include "SDL_config_macosx.h"
-#elif defined(__IPHONEOS__)
-#include "SDL_config_iphoneos.h"
-#elif defined(__ANDROID__)
-#include "SDL_config_android.h"
-#elif defined(__PSP__)
-#include "SDL_config_psp.h"
+/* General platform specific identifiers */
+#include "SDL_platform.h"
+
+/* Make sure that this isn't included by Visual C++ */
+#ifdef _MSC_VER
+#error You should run hg revert SDL_config.h 
+#endif
+
+/* C language features */
+/* #undef const */
+/* #undef inline */
+/* #undef volatile */
+
+/* C datatypes */
+#ifdef __LP64__
+#define SIZEOF_VOIDP 8
 #else
-/* This is a minimal configuration just to get SDL running on new platforms */
-#include "SDL_config_minimal.h"
-#endif /* platform config */
+#define SIZEOF_VOIDP 4
+#endif
+#define HAVE_GCC_ATOMICS 1
+/* #undef HAVE_GCC_SYNC_LOCK_TEST_AND_SET */
+
+/* #undef HAVE_DDRAW_H */
+/* #undef HAVE_DINPUT_H */
+/* #undef HAVE_DSOUND_H */
+/* #undef HAVE_DXGI_H */
+/* #undef HAVE_XINPUT_H */
+
+/* Comment this if you want to build without any C library requirements */
+#define HAVE_LIBC 1
+#if HAVE_LIBC
 
-#ifdef USING_GENERATED_CONFIG_H
-#error Wrong SDL_config.h, check your include path?
+/* Useful headers */
+#define HAVE_ALLOCA_H 1
+#define HAVE_SYS_TYPES_H 1
+#define HAVE_STDIO_H 1
+#define STDC_HEADERS 1
+#define HAVE_STDLIB_H 1
+#define HAVE_STDARG_H 1
+#define HAVE_MALLOC_H 1
+#define HAVE_MEMORY_H 1
+#define HAVE_STRING_H 1
+#define HAVE_STRINGS_H 1
+#define HAVE_INTTYPES_H 1
+#define HAVE_STDINT_H 1
+#define HAVE_CTYPE_H 1
+#define HAVE_MATH_H 1
+#define HAVE_ICONV_H 1
+#define HAVE_SIGNAL_H 1
+/* #undef HAVE_ALTIVEC_H */
+/* #undef HAVE_PTHREAD_NP_H */
+#define HAVE_LIBUDEV_H 1
+#define HAVE_DBUS_DBUS_H 1
+/* #undef HAVE_IBUS_IBUS_H */
+
+/* C library functions */
+#define HAVE_MALLOC 1
+#define HAVE_CALLOC 1
+#define HAVE_REALLOC 1
+#define HAVE_FREE 1
+#define HAVE_ALLOCA 1
+#ifndef __WIN32__ /* Don't use C runtime versions of these on Windows */
+#define HAVE_GETENV 1
+#define HAVE_SETENV 1
+#define HAVE_PUTENV 1
+#define HAVE_UNSETENV 1
 #endif
+#define HAVE_QSORT 1
+#define HAVE_ABS 1
+#define HAVE_BCOPY 1
+#define HAVE_MEMSET 1
+#define HAVE_MEMCPY 1
+#define HAVE_MEMMOVE 1
+#define HAVE_MEMCMP 1
+#define HAVE_STRLEN 1
+/* #undef HAVE_STRLCPY */
+/* #undef HAVE_STRLCAT */
+#define HAVE_STRDUP 1
+/* #undef HAVE__STRREV */
+/* #undef HAVE__STRUPR */
+/* #undef HAVE__STRLWR */
+/* #undef HAVE_INDEX */
+/* #undef HAVE_RINDEX */
+#define HAVE_STRCHR 1
+#define HAVE_STRRCHR 1
+#define HAVE_STRSTR 1
+/* #undef HAVE_ITOA */
+/* #undef HAVE__LTOA */
+/* #undef HAVE__UITOA */
+/* #undef HAVE__ULTOA */
+#define HAVE_STRTOL 1
+#define HAVE_STRTOUL 1
+/* #undef HAVE__I64TOA */
+/* #undef HAVE__UI64TOA */
+#define HAVE_STRTOLL 1
+#define HAVE_STRTOULL 1
+#define HAVE_STRTOD 1
+#define HAVE_ATOI 1
+#define HAVE_ATOF 1
+#define HAVE_STRCMP 1
+#define HAVE_STRNCMP 1
+/* #undef HAVE__STRICMP */
+#define HAVE_STRCASECMP 1
+/* #undef HAVE__STRNICMP */
+#define HAVE_STRNCASECMP 1
+/* #undef HAVE_SSCANF */
+#define HAVE_VSSCANF 1
+/* #undef HAVE_SNPRINTF */
+#define HAVE_VSNPRINTF 1
+#define HAVE_M_PI /**/
+#define HAVE_ATAN 1
+#define HAVE_ATAN2 1
+#define HAVE_ACOS 1
+#define HAVE_ASIN 1
+#define HAVE_CEIL 1
+#define HAVE_COPYSIGN 1
+#define HAVE_COS 1
+#define HAVE_COSF 1
+#define HAVE_FABS 1
+#define HAVE_FLOOR 1
+#define HAVE_LOG 1
+#define HAVE_POW 1
+#define HAVE_SCALBN 1
+#define HAVE_SIN 1
+#define HAVE_SINF 1
+#define HAVE_SQRT 1
+#define HAVE_SQRTF 1
+#define HAVE_TAN 1
+#define HAVE_TANF 1
+#define HAVE_FSEEKO 1
+#define HAVE_FSEEKO64 1
+#define HAVE_SIGACTION 1
+#define HAVE_SA_SIGACTION 1
+#define HAVE_SETJMP 1
+#define HAVE_NANOSLEEP 1
+#define HAVE_SYSCONF 1
+/* #undef HAVE_SYSCTLBYNAME */
+#define HAVE_CLOCK_GETTIME 1
+/* #undef HAVE_GETPAGESIZE */
+#define HAVE_MPROTECT 1
+#define HAVE_ICONV 1
+#define HAVE_PTHREAD_SETNAME_NP 1
+/* #undef HAVE_PTHREAD_SET_NAME_NP */
+#define HAVE_SEM_TIMEDWAIT 1
+
+#else
+#define HAVE_STDARG_H 1
+#define HAVE_STDDEF_H 1
+#define HAVE_STDINT_H 1
+#endif /* HAVE_LIBC */
+
+/* SDL internal assertion support */
+/* #undef SDL_DEFAULT_ASSERT_LEVEL */
+
+/* Allow disabling of core subsystems */
+/* #undef SDL_ATOMIC_DISABLED */
+/* #undef SDL_AUDIO_DISABLED */
+/* #undef SDL_CPUINFO_DISABLED */
+/* #undef SDL_EVENTS_DISABLED */
+/* #undef SDL_FILE_DISABLED */
+/* #undef SDL_JOYSTICK_DISABLED */
+/* #undef SDL_HAPTIC_DISABLED */
+/* #undef SDL_LOADSO_DISABLED */
+/* #undef SDL_RENDER_DISABLED */
+/* #undef SDL_THREADS_DISABLED */
+/* #undef SDL_TIMERS_DISABLED */
+/* #undef SDL_VIDEO_DISABLED */
+/* #undef SDL_POWER_DISABLED */
+/* #undef SDL_FILESYSTEM_DISABLED */
+
+/* Enable various audio drivers */
+/* #undef SDL_AUDIO_DRIVER_ALSA */
+/* #undef SDL_AUDIO_DRIVER_ALSA_DYNAMIC */
+/* #undef SDL_AUDIO_DRIVER_ARTS */
+/* #undef SDL_AUDIO_DRIVER_ARTS_DYNAMIC */
+/* #undef SDL_AUDIO_DRIVER_PULSEAUDIO */
+/* #undef SDL_AUDIO_DRIVER_PULSEAUDIO_DYNAMIC */
+/* #undef SDL_AUDIO_DRIVER_HAIKU */
+/* #undef SDL_AUDIO_DRIVER_BSD */
+/* #undef SDL_AUDIO_DRIVER_COREAUDIO */
+#define SDL_AUDIO_DRIVER_DISK 1
+#define SDL_AUDIO_DRIVER_DUMMY 1
+/* #undef SDL_AUDIO_DRIVER_ANDROID */
+/* #undef SDL_AUDIO_DRIVER_XAUDIO2 */
+/* #undef SDL_AUDIO_DRIVER_DSOUND */
+/* #undef SDL_AUDIO_DRIVER_ESD */
+/* #undef SDL_AUDIO_DRIVER_ESD_DYNAMIC */
+/* #undef SDL_AUDIO_DRIVER_NACL */
+/* #undef SDL_AUDIO_DRIVER_NAS */
+/* #undef SDL_AUDIO_DRIVER_NAS_DYNAMIC */
+/* #undef SDL_AUDIO_DRIVER_SNDIO */
+/* #undef SDL_AUDIO_DRIVER_SNDIO_DYNAMIC */
+#define SDL_AUDIO_DRIVER_OSS 1
+/* #undef SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H */
+/* #undef SDL_AUDIO_DRIVER_PAUDIO */
+/* #undef SDL_AUDIO_DRIVER_QSA */
+/* #undef SDL_AUDIO_DRIVER_SUNAUDIO */
+/* #undef SDL_AUDIO_DRIVER_WINMM */
+/* #undef SDL_AUDIO_DRIVER_FUSIONSOUND */
+/* #undef SDL_AUDIO_DRIVER_FUSIONSOUND_DYNAMIC */
+/* #undef SDL_AUDIO_DRIVER_EMSCRIPTEN */
+
+/* Enable various input drivers */
+#define SDL_INPUT_LINUXEV 1
+#define SDL_INPUT_LINUXKD 1
+/* #undef SDL_INPUT_TSLIB */
+/* #undef SDL_JOYSTICK_HAIKU */
+/* #undef SDL_JOYSTICK_DINPUT */
+/* #undef SDL_JOYSTICK_XINPUT */
+/* #undef SDL_JOYSTICK_DUMMY */
+/* #undef SDL_JOYSTICK_IOKIT */
+#define SDL_JOYSTICK_LINUX 1
+/* #undef SDL_JOYSTICK_ANDROID */
+/* #undef SDL_JOYSTICK_WINMM */
+/* #undef SDL_JOYSTICK_USBHID */
+/* #undef SDL_JOYSTICK_USBHID_MACHINE_JOYSTICK_H */
+/* #undef SDL_JOYSTICK_EMSCRIPTEN */
+/* #undef SDL_HAPTIC_DUMMY */
+#define SDL_HAPTIC_LINUX 1
+/* #undef SDL_HAPTIC_IOKIT */
+/* #undef SDL_HAPTIC_DINPUT */
+/* #undef SDL_HAPTIC_XINPUT */
+
+/* Enable various shared object loading systems */
+/* #undef SDL_LOADSO_HAIKU */
+#define SDL_LOADSO_DLOPEN 1
+/* #undef SDL_LOADSO_DUMMY */
+/* #undef SDL_LOADSO_LDG */
+/* #undef SDL_LOADSO_WINDOWS */
+
+/* Enable various threading systems */
+#define SDL_THREAD_PTHREAD 1
+#define SDL_THREAD_PTHREAD_RECURSIVE_MUTEX 1
+/* #undef SDL_THREAD_PTHREAD_RECURSIVE_MUTEX_NP */
+/* #undef SDL_THREAD_WINDOWS */
+
+/* Enable various timer systems */
+/* #undef SDL_TIMER_HAIKU */
+/* #undef SDL_TIMER_DUMMY */
+#define SDL_TIMER_UNIX 1
+/* #undef SDL_TIMER_WINDOWS */
+
+/* Enable various video drivers */
+/* #undef SDL_VIDEO_DRIVER_HAIKU */
+/* #undef SDL_VIDEO_DRIVER_COCOA */
+/* #undef SDL_VIDEO_DRIVER_DIRECTFB */
+/* #undef SDL_VIDEO_DRIVER_DIRECTFB_DYNAMIC */
+#define SDL_VIDEO_DRIVER_DUMMY 1
+/* #undef SDL_VIDEO_DRIVER_WINDOWS */
+/* #undef SDL_VIDEO_DRIVER_WAYLAND */
+/* #undef SDL_VIDEO_DRIVER_WAYLAND_QT_TOUCH */
+/* #undef SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC */
+/* #undef SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_EGL */
+/* #undef SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_CURSOR */
+/* #undef SDL_VIDEO_DRIVER_WAYLAND_DYNAMIC_XKBCOMMON */
+/* #undef SDL_VIDEO_DRIVER_MIR */
+/* #undef SDL_VIDEO_DRIVER_MIR_DYNAMIC */
+/* #undef SDL_VIDEO_DRIVER_MIR_DYNAMIC_XKBCOMMON */
+/* #undef SDL_VIDEO_DRIVER_X11 */
+#define SDL_VIDEO_DRIVER_RPI 1
+/* #undef SDL_VIDEO_DRIVER_ANDROID */
+/* #undef SDL_VIDEO_DRIVER_EMSCRIPTEN */
+/* #undef SDL_VIDEO_DRIVER_X11_DYNAMIC */
+/* #undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XEXT */
+/* #undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XCURSOR */
+/* #undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XINERAMA */
+/* #undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XINPUT2 */
+/* #undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XRANDR */
+/* #undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XSS */
+/* #undef SDL_VIDEO_DRIVER_X11_DYNAMIC_XVIDMODE */
+/* #undef SDL_VIDEO_DRIVER_X11_XCURSOR */
+/* #undef SDL_VIDEO_DRIVER_X11_XDBE */
+/* #undef SDL_VIDEO_DRIVER_X11_XINERAMA */
+/* #undef SDL_VIDEO_DRIVER_X11_XINPUT2 */
+/* #undef SDL_VIDEO_DRIVER_X11_XINPUT2_SUPPORTS_MULTITOUCH */
+/* #undef SDL_VIDEO_DRIVER_X11_XRANDR */
+/* #undef SDL_VIDEO_DRIVER_X11_XSCRNSAVER */
+/* #undef SDL_VIDEO_DRIVER_X11_XSHAPE */
+/* #undef SDL_VIDEO_DRIVER_X11_XVIDMODE */
+/* #undef SDL_VIDEO_DRIVER_X11_SUPPORTS_GENERIC_EVENTS */
+/* #undef SDL_VIDEO_DRIVER_X11_CONST_PARAM_XEXTADDDISPLAY */
+/* #undef SDL_VIDEO_DRIVER_X11_HAS_XKBKEYCODETOKEYSYM */
+/* #undef SDL_VIDEO_DRIVER_NACL */
+/* #undef SDL_VIDEO_DRIVER_VIVANTE */
+/* #undef SDL_VIDEO_DRIVER_VIVANTE_VDK */
+
+/* #undef SDL_VIDEO_RENDER_D3D */
+/* #undef SDL_VIDEO_RENDER_D3D11 */
+/* #undef SDL_VIDEO_RENDER_OGL */
+#define SDL_VIDEO_RENDER_OGL_ES 1
+#define SDL_VIDEO_RENDER_OGL_ES2 1
+/* #undef SDL_VIDEO_RENDER_DIRECTFB */
+
+/* Enable OpenGL support */
+/* #undef SDL_VIDEO_OPENGL */
+#define SDL_VIDEO_OPENGL_ES 1
+#define SDL_VIDEO_OPENGL_ES2 1
+/* #undef SDL_VIDEO_OPENGL_BGL */
+/* #undef SDL_VIDEO_OPENGL_CGL */
+#define SDL_VIDEO_OPENGL_EGL 1
+/* #undef SDL_VIDEO_OPENGL_GLX */
+/* #undef SDL_VIDEO_OPENGL_WGL */
+/* #undef SDL_VIDEO_OPENGL_OSMESA */
+/* #undef SDL_VIDEO_OPENGL_OSMESA_DYNAMIC */
+
+/* Enable system power support */
+#define SDL_POWER_LINUX 1
+/* #undef SDL_POWER_WINDOWS */
+/* #undef SDL_POWER_MACOSX */
+/* #undef SDL_POWER_HAIKU */
+/* #undef SDL_POWER_ANDROID */
+/* #undef SDL_POWER_EMSCRIPTEN */
+/* #undef SDL_POWER_HARDWIRED */
+
+/* Enable system filesystem support */
+/* #undef SDL_FILESYSTEM_HAIKU */
+/* #undef SDL_FILESYSTEM_COCOA */
+/* #undef SDL_FILESYSTEM_DUMMY */
+#define SDL_FILESYSTEM_UNIX 1
+/* #undef SDL_FILESYSTEM_WINDOWS */
+/* #undef SDL_FILESYSTEM_NACL */
+/* #undef SDL_FILESYSTEM_ANDROID */
+/* #undef SDL_FILESYSTEM_EMSCRIPTEN */
+
+/* Enable assembly routines */
+#define SDL_ASSEMBLY_ROUTINES 1
+/* #undef SDL_ALTIVEC_BLITTERS */
 
 #endif /* _SDL_config_h */

src/video/SDL_egl.c

@@ -265,7 +265,7 @@ SDL_EGL_LoadLibrary(_THIS, const char *egl_path, NativeDisplayType native_displa
  LOAD_FUNC(eglWaitGL);
  LOAD_FUNC(eglBindAPI);
  LOAD_FUNC(eglQueryString);
- 
+ LOAD_FUNC(eglSurfaceAttrib);
 #if !defined(__WINRT__)
  _this->egl_data->egl_display = _this->egl_data->eglGetDisplay(native_display);
  if (!_this->egl_data->egl_display) {
@@ -606,12 +606,17 @@ SDL_EGL_CreateSurface(_THIS, NativeWindowType nw)
 
  ANativeWindow_setBuffersGeometry(nw, 0, 0, format);
  }
-#endif 
- 
- return _this->egl_data->eglCreateWindowSurface(
- _this->egl_data->egl_display,
- _this->egl_data->egl_config,
- nw, NULL);
+#endif
+
+ EGLSurface surface = _this->egl_data->eglCreateWindowSurface(
+ _this->egl_data->egl_display,
+ _this->egl_data->egl_config,
+ nw, NULL);
+
+ if (_this->egl_data->eglSurfaceAttrib(_this->egl_data->egl_display, surface, EGL_SWAP_BEHAVIOR, EGL_BUFFER_PRESERVED) == EGL_FALSE)
+ printf("Cannot set EGL_BUFFER_PRESERVED\n");
+
+ return surface;
 }
 
 void