Here is a list of all functions, variables, defines, enums, and typedefs with links to the files they belong to:

### - u -

- SDL_uclibc_atan() : math_libm.h
- SDL_uclibc_atan2() : math_libm.h
- SDL_uclibc_copysign() : math_libm.h
- SDL_uclibc_cos() : math_libm.h
- SDL_uclibc_fabs() : math_libm.h
- SDL_uclibc_floor() : math_libm.h
- SDL_uclibc_log() : math_libm.h
- SDL_uclibc_pow() : math_libm.h
- SDL_uclibc_scalbn() : math_libm.h
- SDL_uclibc_sin() : math_libm.h
- SDL_uclibc_sqrt() : math_libm.h
- SDL_uclibc_tan() : math_libm.h
- SDL_UCS4ToUTF8() : SDL_keyboard.c , SDL_keyboard_c.h
- SDL_uitoa() : SDL_string.c , SDL_dynapi_overrides.h , SDL_stdinc.h
- SDL_ulltoa : SDL_dynapi_overrides.h , SDL_stdinc.h , SDL_string.c
- SDL_ultoa : SDL_dynapi_overrides.h , SDL_stdinc.h , SDL_string.c
- SDL_UninitializedVideo() : SDL_video.c
- SDL_UnionRect : SDL_dynapi_overrides.h , SDL_rect.h , SDL_rect.c
- SDL_UnloadObject : SDL_dynapi_overrides.h , SDL_dynapi_procs.h , SDL_loadso.h
- SDL_UnlockAudio : SDL_dynapi_overrides.h , SDL_dynapi_procs.h , SDL_audio.h , SDL_audio.c
- SDL_UnlockAudioDevice : SDL_dynapi_overrides.h , SDL_audio.h , SDL_audio.c
- SDL_UnlockMutex : SDL_dynapi_overrides.h , SDL_dynapi_procs.h , SDL_mutex.h , SDL_sysmutex.c
- SDL_UnlockSurface : SDL_dynapi_overrides.h , SDL_surface.h , SDL_surface.c
- SDL_UnlockTexture : SDL_dynapi_overrides.h , SDL_dynapi_procs.h , SDL_render.h , SDL_render.c
- SDL_UnlockTextureNative() : SDL_render.c
- SDL_UnlockTextureYUV() : SDL_render.c
- SDL_UnregisterApp : SDL_dynapi_overrides.h , SDL_main.h
- SDL_UnRLESurface() : SDL_RLEaccel.c , SDL_RLEaccel_c.h
- SDL_Unsupported : SDL_error.h
- SDL_UNSUPPORTED : SDL_error.h
- SDL_UNUSED : begin_code.h
- SDL_UpdateFullscreenMode() : SDL_video.c
- SDL_UpdateMouseFocus() : SDL_mouse.c
- SDL_UpdateTexture : SDL_dynapi_overrides.h , SDL_render.h , SDL_render.c
- SDL_UpdateTextureNative() : SDL_render.c
- SDL_UpdateTextureYUV() : SDL_render.c
- SDL_UpdateTextureYUVPlanar() : SDL_render.c
- SDL_UpdateWindowGrab() : SDL_sysvideo.h , SDL_video.c
- SDL_UpdateWindowSurface : SDL_dynapi_overrides.h , SDL_dynapi_procs.h , SDL_video.h , SDL_video.c
- SDL_UpdateWindowSurfaceRects : SDL_dynapi_overrides.h , SDL_video.h , SDL_video.c
- SDL_UpdateWindowTexture() : SDL_video.c
- SDL_UpdateYUVTexture : SDL_dynapi_overrides.h , SDL_dynapi_procs.h , SDL_render.h , SDL_render.c
- SDL_updating_joystick : SDL_joystick.c
- SDL_UpperBlit : SDL_dynapi_overrides.h , SDL_dynapi_procs.h , SDL_surface.h , SDL_surface.c
- SDL_UpperBlitScaled : SDL_dynapi_overrides.h , SDL_surface.h , SDL_surface.c
- SDL_Upsample_F32LSB_1c() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_1c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_1c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_2c() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_2c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_2c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_4c() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_4c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_4c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_6c() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_6c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_6c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_8c() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_8c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_F32LSB_8c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_1c() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_1c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_1c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_2c() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_2c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_2c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_4c() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_4c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_4c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_6c() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_6c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_6c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_8c() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_8c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_F32MSB_8c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_1c() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_1c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_1c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_2c() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_2c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_2c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_4c() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_4c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_4c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_6c() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_6c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_6c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_8c() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_8c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S16LSB_8c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_1c() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_1c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_1c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_2c() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_2c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_2c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_4c() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_4c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_4c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_6c() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_6c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_6c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_8c() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_8c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S16MSB_8c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_1c() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_1c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_1c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_2c() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_2c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_2c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_4c() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_4c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_4c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_6c() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_6c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_6c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_8c() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_8c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S32LSB_8c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_1c() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_1c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_1c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_2c() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_2c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_2c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_4c() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_4c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_4c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_6c() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_6c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_6c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_8c() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_8c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S32MSB_8c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S8_1c() : SDL_audiotypecvt.c
- SDL_Upsample_S8_1c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S8_1c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S8_2c() : SDL_audiotypecvt.c
- SDL_Upsample_S8_2c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S8_2c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S8_4c() : SDL_audiotypecvt.c
- SDL_Upsample_S8_4c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S8_4c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S8_6c() : SDL_audiotypecvt.c
- SDL_Upsample_S8_6c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S8_6c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_S8_8c() : SDL_audiotypecvt.c
- SDL_Upsample_S8_8c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_S8_8c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_1c() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_1c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_1c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_2c() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_2c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_2c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_4c() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_4c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_4c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_6c() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_6c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_6c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_8c() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_8c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U16LSB_8c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_1c() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_1c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_1c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_2c() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_2c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_2c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_4c() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_4c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_4c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_6c() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_6c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_6c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_8c() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_8c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U16MSB_8c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U8_1c() : SDL_audiotypecvt.c
- SDL_Upsample_U8_1c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U8_1c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U8_2c() : SDL_audiotypecvt.c
- SDL_Upsample_U8_2c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U8_2c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U8_4c() : SDL_audiotypecvt.c
- SDL_Upsample_U8_4c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U8_4c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U8_6c() : SDL_audiotypecvt.c
- SDL_Upsample_U8_6c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U8_6c_x4() : SDL_audiotypecvt.c
- SDL_Upsample_U8_8c() : SDL_audiotypecvt.c
- SDL_Upsample_U8_8c_x2() : SDL_audiotypecvt.c
- SDL_Upsample_U8_8c_x4() : SDL_audiotypecvt.c
- SDL_UseAltivecPrefetch() : SDL_blit.c
- SDL_USEREVENT : SDL_events.h
- SDL_userevents : SDL_events.c
- SDL_utf8strlcpy : SDL_dynapi_overrides.h , SDL_string.c , SDL_stdinc.h
- u1 : SDL_glfuncs.h , SDL_opengl_glext.h
- u2 : SDL_glfuncs.h , SDL_opengl_glext.h
- u_int32_t : math_private.h
- uchar : edid.h
- UIKit_ComputeViewFrame() : SDL_uikitvideo.h
- UIKit_CreateWindow() : SDL_uikitwindow.h
- UIKit_DestroyWindow() : SDL_uikitwindow.h
- UIKit_GetDisplayModes() : SDL_uikitmodes.h
- UIKit_GetSupportedOrientations() : SDL_uikitwindow.h
- UIKit_GetWindowWMInfo() : SDL_uikitwindow.h
- UIKit_GL_CreateContext() : SDL_uikitopengles.h
- UIKit_GL_DeleteContext() : SDL_uikitopengles.h
- UIKit_GL_GetDrawableSize() : SDL_uikitopengles.h
- UIKit_GL_GetProcAddress() : SDL_uikitopengles.h
- UIKit_GL_LoadLibrary() : SDL_uikitopengles.h
- UIKit_GL_MakeCurrent() : SDL_uikitopengles.h
- UIKit_GL_SwapWindow() : SDL_uikitopengles.h
- UIKit_HideWindow() : SDL_uikitwindow.h
- UIKit_InitModes() : SDL_uikitmodes.h
- UIKit_IsDisplayLandscape() : SDL_uikitmodes.h
- UIKit_IsSystemVersionAtLeast() : SDL_uikitvideo.h
- UIKit_PumpEvents() : SDL_uikitevents.h
- UIKit_QuitModes() : SDL_uikitmodes.h
- UIKit_RaiseWindow() : SDL_uikitwindow.h
- UIKit_SetDisplayMode() : SDL_uikitmodes.h
- UIKit_SetWindowBordered() : SDL_uikitwindow.h
- UIKit_SetWindowFullscreen() : SDL_uikitwindow.h
- UIKit_SetWindowTitle() : SDL_uikitwindow.h
- UIKit_ShowWindow() : SDL_uikitwindow.h
- UIKit_SuspendScreenSaver() : SDL_uikitvideo.h
- Uint16 : SDL_stdinc.h
- uint16_t : SDL_config_windows.h , SDL_config_winrt.h
- Uint32 : SDL_stdinc.h
- uint32_t : SDL_config_windows.h , SDL_config_winrt.h
- Uint64 : SDL_stdinc.h
- uint64_t : SDL_config_windows.h , SDL_config_winrt.h , SDL_opengl_glext.h
- Uint8 : SDL_stdinc.h
- uint8_t : SDL_config_windows.h , SDL_config_winrt.h
- uintptr_t : SDL_config_winrt.h , SDL_config_windows.h
- un : SDL_glfuncs.h
- uncopy_32() : SDL_RLEaccel.c
- uncopy_opaque_16() : SDL_RLEaccel.c
- uncopy_transl_16() : SDL_RLEaccel.c
- UNDEFINED : edid.h
- UNDEFINED_COLOR : edid.h
- unicharToUIKeyInfoTable : keyinfotable.h
- UNICODE_BOM : SDL_iconv.c
- uniformBlockBinding : SDL_opengl_glext.h
- uniformBlockIndex : SDL_opengl_glext.h
- uniformBlockName : SDL_opengl_glext.h
- uniformCount : SDL_opengl_glext.h
- uniformIndex : SDL_opengl_glext.h
- uniformIndices : SDL_opengl_glext.h
- uniformName : SDL_opengl_glext.h
- uniformNames : SDL_opengl_glext.h
- units : SDL_opengl_glext.h
- UNKNOWN_ASCII : SDL_iconv.c
- UNKNOWN_UNICODE : SDL_iconv.c
- unlink_chunk : SDL_malloc.c
- unlink_first_small_chunk : SDL_malloc.c
- unlink_large_chunk : SDL_malloc.c
- unlink_small_chunk : SDL_malloc.c
- UnRLEAlpha() : SDL_RLEaccel.c
- uorder : SDL_opengl_glext.h , SDL_glfuncs.h
- UpdateLogicalSize() : SDL_render.c
- UpdateTexture() : teststreaming.c
- usage() : testime.c , SDL_opengl_glext.h
- USAGE_ERROR_ACTION : SDL_malloc.c
- USE_BUILTIN_FFS : SDL_malloc.c
- USE_DEV_RANDOM : SDL_malloc.c
- USE_DUFFS_LOOP : SDL_blit.h
- use_lock : SDL_malloc.c
- USE_LOCK_BIT : SDL_malloc.c
- USE_LOCKS : SDL_malloc.c
- USE_MACOS_CURSOR : default_cursor.h
- use_mmap : SDL_malloc.c
- USE_MMAP_BIT : SDL_malloc.c
- USE_MULTI_API : SDL_DirectFB_video.h
- use_noncontiguous : SDL_malloc.c
- USE_NONCONTIGUOUS_BIT : SDL_malloc.c
- use_target : testviewport.c
- userParam : SDL_opengl_glext.h , SDL_opengles2_gl2ext.h
- ustride : SDL_opengl_glext.h , SDL_glfuncs.h
- utf8_advance() : testime.c
- UTF8_IsLeadByte : SDL_string.c
- UTF8_IsTrailingByte : SDL_string.c
- utf8_length() : testime.c
- utf8_next() : testime.c
- UTF8_TrailingBytes() : SDL_string.c