Mesa (master): format: add format_to_chroma_format

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Module: Mesa
Branch: master
Commit: 87807298a307d4e38195dc04f66c26404e7cb791
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=87807298a307d4e38195dc04f66c26404e7cb791

Author: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer at amd.com>
Date:   Wed Feb  5 10:20:06 2020 +0100

format: add format_to_chroma_format

Reviewed-by: Marek Olšák <marek.olsak at amd.com>
Acked-by: Leo Liu <leo.liu at amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/3738>

---

 src/gallium/include/pipe/p_format.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/src/gallium/include/pipe/p_format.h b/src/gallium/include/pipe/p_format.h
index 46bb8c97a00..a51843caa20 100644
--- a/src/gallium/include/pipe/p_format.h
+++ b/src/gallium/include/pipe/p_format.h
@@ -560,6 +560,26 @@ enum pipe_video_chroma_format
    PIPE_VIDEO_CHROMA_FORMAT_NONE
 };
 
+static inline enum pipe_video_chroma_format
+pipe_format_to_chroma_format(enum pipe_format format)
+{
+   switch (format) {
+      case PIPE_FORMAT_NV12:
+      case PIPE_FORMAT_NV21:
+      case PIPE_FORMAT_YV12:
+      case PIPE_FORMAT_IYUV:
+      case PIPE_FORMAT_P010:
+      case PIPE_FORMAT_P016:
+         return PIPE_VIDEO_CHROMA_FORMAT_420;
+      case PIPE_FORMAT_UYVY:
+      case PIPE_FORMAT_YUYV:
+      case PIPE_FORMAT_YV16:
+         return PIPE_VIDEO_CHROMA_FORMAT_422;
+      default:
+         return PIPE_VIDEO_CHROMA_FORMAT_NONE;
+   }
+}
+
 #ifdef __cplusplus
 }
 #endif