[Mesa-dev] [PATCH 07/13] st/va: get mjpeg slice header

[boyuan.zhang at amd.com]

From: Boyuan Zhang <boyuan.zhang at amd.com>

Move the previous get_mjpeg_slice_header function from radeon/vcn to st/va.

Signed-off-by: Boyuan Zhang <boyuan.zhang at amd.com>
---
 src/gallium/state_trackers/va/picture.c       |   3 +
 src/gallium/state_trackers/va/picture_mjpeg.c | 132 ++++++++++++++++++++++++++
 src/gallium/state_trackers/va/va_private.h    |   3 +
 3 files changed, 138 insertions(+)

diff --git a/src/gallium/state_trackers/va/picture.c b/src/gallium/state_trackers/va/picture.c
index f2e9ba8..d326ed4 100644
--- a/src/gallium/state_trackers/va/picture.c
+++ b/src/gallium/state_trackers/va/picture.c
@@ -293,6 +293,9 @@ handleVASliceDataBufferType(vlVaContext *context, vlVaBuffer *buf)
       sizes[num_buffers++] = context->mpeg4.start_code_size;
       break;
    case PIPE_VIDEO_FORMAT_JPEG:
+      vlVaGetJpegSliceHeader(context);
+      buffers[num_buffers] = (void *)context->mjpeg.slice_header;
+      sizes[num_buffers++] = context->mjpeg.slice_header_size;
       break;
    default:
       break;
diff --git a/src/gallium/state_trackers/va/picture_mjpeg.c b/src/gallium/state_trackers/va/picture_mjpeg.c
index 396b743..f1292ea 100644
--- a/src/gallium/state_trackers/va/picture_mjpeg.c
+++ b/src/gallium/state_trackers/va/picture_mjpeg.c
@@ -114,3 +114,135 @@ void vlVaHandleSliceParameterBufferMJPEG(vlVaContext *context, vlVaBuffer *buf)
    context->desc.mjpeg.slice_parameter.restart_interval = mjpeg->restart_interval;
    context->desc.mjpeg.slice_parameter.num_mcus = mjpeg->num_mcus;
 }
+
+void vlVaGetJpegSliceHeader(vlVaContext *context)
+{
+   int size = 0, saved_size, len_pos, i;
+   uint16_t *bs;
+   uint8_t *p = context->mjpeg.slice_header;
+
+   /* SOI */
+   p[size++] = 0xff;
+   p[size++] = 0xd8;
+
+   /* DQT */
+   p[size++] = 0xff;
+   p[size++] = 0xdb;
+
+   len_pos = size++;
+   size++;
+
+   for (i = 0; i < 4; ++i) {
+      if (context->desc.mjpeg.quantization_table.load_quantiser_table[i] == 0)
+         continue;
+
+      p[size++] = i;
+      memcpy((p + size), &context->desc.mjpeg.quantization_table.quantiser_table[i], 64);
+      size += 64;
+   }
+
+   bs = (uint16_t*)&p[len_pos];
+   *bs = util_bswap16(size - 4);
+
+   saved_size = size;
+
+   /* DHT */
+   p[size++] = 0xff;
+   p[size++] = 0xc4;
+
+   len_pos = size++;
+   size++;
+
+   for (i = 0; i < 2; ++i) {
+      if (context->desc.mjpeg.huffman_table.load_huffman_table[i] == 0)
+         continue;
+
+      p[size++] = 0x00 | i;
+      memcpy((p + size), &context->desc.mjpeg.huffman_table.table[i].num_dc_codes, 16);
+      size += 16;
+      memcpy((p + size), &context->desc.mjpeg.huffman_table.table[i].dc_values, 12);
+      size += 12;
+   }
+
+   for (i = 0; i < 2; ++i) {
+      if (context->desc.mjpeg.huffman_table.load_huffman_table[i] == 0)
+         continue;
+
+      p[size++] = 0x10 | i;
+      memcpy((p + size), &context->desc.mjpeg.huffman_table.table[i].num_ac_codes, 16);
+      size += 16;
+      memcpy((p + size), &context->desc.mjpeg.huffman_table.table[i].ac_values, 162);
+      size += 162;
+   }
+
+   bs = (uint16_t*)&p[len_pos];
+   *bs = util_bswap16(size - saved_size - 2);
+
+   saved_size = size;
+
+   /* DRI */
+   if (context->desc.mjpeg.slice_parameter.restart_interval) {
+      p[size++] = 0xff;
+      p[size++] = 0xdd;
+      p[size++] = 0x00;
+      p[size++] = 0x04;
+      bs = (uint16_t*)&p[size++];
+      *bs = util_bswap16(context->desc.mjpeg.slice_parameter.restart_interval);
+      saved_size = ++size;
+   }
+
+   /* SOF */
+   p[size++] = 0xff;
+   p[size++] = 0xc0;
+
+   len_pos = size++;
+   size++;
+
+   p[size++] = 0x08;
+
+   bs = (uint16_t*)&p[size++];
+   *bs = util_bswap16(context->desc.mjpeg.picture_parameter.picture_height);
+   size++;
+
+   bs = (uint16_t*)&p[size++];
+   *bs = util_bswap16(context->desc.mjpeg.picture_parameter.picture_width);
+   size++;
+
+   p[size++] = context->desc.mjpeg.picture_parameter.num_components;
+
+   for (i = 0; i < context->desc.mjpeg.picture_parameter.num_components; ++i) {
+      p[size++] = context->desc.mjpeg.picture_parameter.components[i].component_id;
+      p[size++] = context->desc.mjpeg.picture_parameter.components[i].h_sampling_factor << 4 |
+                 context->desc.mjpeg.picture_parameter.components[i].v_sampling_factor;
+      p[size++] = context->desc.mjpeg.picture_parameter.components[i].quantiser_table_selector;
+   }
+
+   bs = (uint16_t*)&p[len_pos];
+   *bs = util_bswap16(size - saved_size - 2);
+
+   saved_size = size;
+
+   /* SOS */
+   p[size++] = 0xff;
+   p[size++] = 0xda;
+
+   len_pos = size++;
+   size++;
+
+   p[size++] = context->desc.mjpeg.slice_parameter.num_components;
+
+   for (i = 0; i < context->desc.mjpeg.slice_parameter.num_components; ++i) {
+      p[size++] = context->desc.mjpeg.slice_parameter.components[i].component_selector;
+      p[size++] = context->desc.mjpeg.slice_parameter.components[i].dc_table_selector << 4 |
+                 context->desc.mjpeg.slice_parameter.components[i].ac_table_selector;
+   }
+
+   p[size++] = 0x00;
+   p[size++] = 0x3f;
+   p[size++] = 0x00;
+
+   bs = (uint16_t*)&p[len_pos];
+   *bs = util_bswap16(size - saved_size - 2);
+
+   context->mjpeg.slice_header_size = size;
+}
diff --git a/src/gallium/state_trackers/va/va_private.h b/src/gallium/state_trackers/va/va_private.h
index 4396abb..a40dd79 100644
--- a/src/gallium/state_trackers/va/va_private.h
+++ b/src/gallium/state_trackers/va/va_private.h
@@ -285,6 +285,8 @@ typedef struct {
 
    struct {
       unsigned sampling_factor;
+      uint8_t slice_header[1488];
+      unsigned int slice_header_size;
    } mjpeg;
 
    struct vl_deint_filter *deint;
@@ -421,6 +423,7 @@ void vlVaHandlePictureParameterBufferMPEG4(vlVaDriver *drv, vlVaContext *context
 void vlVaHandleIQMatrixBufferMPEG4(vlVaContext *context, vlVaBuffer *buf);
 void vlVaHandleSliceParameterBufferMPEG4(vlVaContext *context, vlVaBuffer *buf);
 void vlVaDecoderFixMPEG4Startcode(vlVaContext *context);
+void vlVaGetJpegSliceHeader(vlVaContext *context);
 void vlVaHandlePictureParameterBufferHEVC(vlVaDriver *drv, vlVaContext *context, vlVaBuffer *buf);
 void vlVaHandleIQMatrixBufferHEVC(vlVaContext *context, vlVaBuffer *buf);
 void vlVaHandleSliceParameterBufferHEVC(vlVaContext *context, vlVaBuffer *buf);
-- 
2.7.4