vl/compositor: convert RGB buffer to YUV with color conversion

[mesa.git] / src / gallium / auxiliary / vl / vl_video_buffer.h

diff --git a/src/gallium/auxiliary/vl/vl_video_buffer.h b/src/gallium/auxiliary/vl/vl_video_buffer.h
index b936a378e1e0bf8763248f0505cffbfafd61a1ae..8a1c0773fc9a84e7bc6b9ea0868ebaec147fb5bc 100644 (file)
--- a/src/gallium/auxiliary/vl/vl_video_buffer.h
+++ b/src/gallium/auxiliary/vl/vl_video_buffer.h
@@ -18,7 +18,7 @@
  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
- * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
@@ -48,6 +48,24 @@ struct vl_video_buffer
    struct pipe_surface      *surfaces[VL_MAX_SURFACES];
 };
 
+static inline void
+vl_video_buffer_adjust_size(unsigned *width, unsigned *height, unsigned plane,
+                            enum pipe_video_chroma_format chroma_format,
+                            bool interlaced)
+{
+   if (interlaced) {
+      *height /= 2;
+   }
+   if (plane > 0) {
+      if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_420) {
+         *width /= 2;
+         *height /= 2;
+      } else if (chroma_format == PIPE_VIDEO_CHROMA_FORMAT_422) {
+         *width /= 2;
+      }
+   }
+}
+
 /**
  * get subformats for each plane
  */