[Mesa-dev] [PATCH 11/20] st/va: add huffman table handling for mjpeg
Leo Liu
leo.liu at amd.com
Tue Aug 15 20:08:29 UTC 2017
Signed-off-by: Leo Liu <leo.liu at amd.com>
---
src/gallium/state_trackers/va/picture_mjpeg.c | 19 ++++++++++++++++++-
1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/src/gallium/state_trackers/va/picture_mjpeg.c b/src/gallium/state_trackers/va/picture_mjpeg.c
index 09b2efc21b..17f077962e 100644
--- a/src/gallium/state_trackers/va/picture_mjpeg.c
+++ b/src/gallium/state_trackers/va/picture_mjpeg.c
@@ -63,7 +63,24 @@ void vlVaHandleIQMatrixBufferMJPEG(vlVaContext *context, vlVaBuffer *buf)
void vlVaHandleHuffmanTableBufferType(vlVaContext *context, vlVaBuffer *buf)
{
- /* TODO */
+ VAHuffmanTableBufferJPEGBaseline *mjpeg = buf->data;
+ int i;
+
+ assert(buf->size >= sizeof(VASliceParameterBufferJPEGBaseline) && buf->num_elements == 1);
+
+ for (i = 0; i < 2; ++i) {
+ context->desc.mjpeg.huffman_table.load_huffman_table[i] = mjpeg->load_huffman_table[i];
+
+ memcpy(&context->desc.mjpeg.huffman_table.table[i].num_dc_codes,
+ mjpeg->huffman_table[i].num_dc_codes, 16);
+ memcpy(&context->desc.mjpeg.huffman_table.table[i].dc_values,
+ mjpeg->huffman_table[i].dc_values, 12);
+ memcpy(&context->desc.mjpeg.huffman_table.table[i].num_ac_codes,
+ mjpeg->huffman_table[i].num_ac_codes, 16);
+ memcpy(&context->desc.mjpeg.huffman_table.table[i].ac_values,
+ mjpeg->huffman_table[i].ac_values, 162);
+ memcpy(&context->desc.mjpeg.huffman_table.table[i].pad, mjpeg->huffman_table[i].pad, 2);
+ }
}
void vlVaHandleSliceParameterBufferMJPEG(vlVaContext *context, vlVaBuffer *buf)
--
2.11.0
More information about the mesa-dev
mailing list