core: add RGBA 32 bits with 10 bits per RGB channel

Equivalent to DXGI_FORMAT_R10G10B10A2_UNORM. One of the main format on Windows
to display 10 bits.

(cherry picked from commit bf2f64958b)

include/vlc_fourcc.h

@@ -330,6 +330,8 @@
 #define VLC_CODEC_ARGB            VLC_FOURCC('A','R','G','B')
 /* 32 bits BGRA */
 #define VLC_CODEC_BGRA            VLC_FOURCC('B','G','R','A')
+/* 32 bits BGRA 10:10:10:2 */
+#define VLC_CODEC_RGBA10          VLC_FOURCC('R','G','A','0')
 /* 64 bits RGBA */
 #define VLC_CODEC_RGBA64          VLC_FOURCC('R','G','A','4')
 

src/misc/fourcc.c

@@ -743,7 +743,7 @@ static const struct
     { { VLC_CODEC_RGB24, 0 },                  PACKED_FMT(3, 24) },
     { { VLC_CODEC_RGB32, 0 },                  PACKED_FMT(4, 24) },
     { { VLC_CODEC_RGBA, VLC_CODEC_ARGB,
-        VLC_CODEC_BGRA, },                     PACKED_FMT(4, 32) },
+        VLC_CODEC_BGRA, VLC_CODEC_RGBA10 },    PACKED_FMT(4, 32) },
     { { VLC_CODEC_RGBA64, 0 },                 PACKED_FMT(8, 64) },
     { { VLC_CODEC_VUYA, 0 },                   PACKED_FMT(4, 32) },
 

src/misc/fourcc_list.h

@@ -800,6 +800,8 @@ static const staticentry_t p_list_video[] = {
         A("AV32"),
     B(VLC_CODEC_BGRA, "32 bits BGRA"),
         A("BGRA"),
+    B(VLC_CODEC_RGBA10, "32 bits RGB 10bits A 2bits"),
+        A("RGA0"),
     B(VLC_CODEC_RGBA64, "64 bits RGBA"),
         A("RGA4"),