camera: Reenabled macOS/iOS support, with rewritten CoreMedia implementation.

include/build_config/SDL_build_config.h.cmake

@@ -246,8 +246,6 @@
 
 #cmakedefine USE_POSIX_SPAWN @USE_POSIX_SPAWN@
 
-#cmakedefine HAVE_COREMEDIA
-
 /* SDL internal assertion support */
 #if @SDL_DEFAULT_ASSERT_LEVEL_CONFIGURED@
 #cmakedefine SDL_DEFAULT_ASSERT_LEVEL @SDL_DEFAULT_ASSERT_LEVEL@

include/build_config/SDL_build_config_ios.h

@@ -198,8 +198,6 @@
 #define SDL_VIDEO_METAL 1
 #endif
 
-#define HAVE_COREMEDIA  1
-
 /* Enable system power support */
 #define SDL_POWER_UIKIT 1
 
@@ -213,6 +211,10 @@
 #define SDL_FILESYSTEM_COCOA   1
 
 /* enable camera support */
+#ifndef SDL_PLATFORM_TVOS
 #define SDL_CAMERA_DRIVER_COREMEDIA 1
+#endif
+
+#define SDL_CAMERA_DRIVER_DUMMY 1
 
 #endif /* SDL_build_config_ios_h_ */

include/build_config/SDL_build_config_macos.h

@@ -261,8 +261,6 @@
 #endif
 #endif
 
-#define HAVE_COREMEDIA  1
-
 /* Enable system power support */
 #define SDL_POWER_MACOSX 1