src/gallium/state_trackers/va/picture_mjpeg.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2017 Advanced Micro Devices, Inc.
   4  * All Rights Reserved.
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   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
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  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
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  25  *
  26  **************************************************************************/
  27
  28 #include "va_private.h"
  29
  30 void vlVaHandlePictureParameterBufferMJPEG(vlVaDriver *drv, vlVaContext *context, vlVaBuffer *buf)
  31 {
  32    VAPictureParameterBufferJPEGBaseline *mjpeg = buf->data;
  33    int i;
  34
  35    assert(buf->size >= sizeof(VAPictureParameterBufferJPEGBaseline) && buf->num_elements == 1);
  36
  37    context->desc.mjpeg.picture_parameter.picture_width = mjpeg->picture_width;
  38    context->desc.mjpeg.picture_parameter.picture_height = mjpeg->picture_height;
  39
  40    for (i = 0; i < mjpeg->num_components; ++i) {
  41       context->desc.mjpeg.picture_parameter.components[i].component_id =
  42          mjpeg->components[i].component_id;
  43       context->desc.mjpeg.picture_parameter.components[i].h_sampling_factor =
  44          mjpeg->components[i].h_sampling_factor;
  45       context->desc.mjpeg.picture_parameter.components[i].v_sampling_factor =
  46          mjpeg->components[i].v_sampling_factor;
  47       context->desc.mjpeg.picture_parameter.components[i].quantiser_table_selector =
  48          mjpeg->components[i].quantiser_table_selector;
  49    }
  50
  51    context->desc.mjpeg.picture_parameter.num_components = mjpeg->num_components;
  52 }
  53
  54 void vlVaHandleIQMatrixBufferMJPEG(vlVaContext *context, vlVaBuffer *buf)
  55 {
  56    VAIQMatrixBufferJPEGBaseline *mjpeg = buf->data;
  57
  58    assert(buf->size >= sizeof(VAIQMatrixBufferJPEGBaseline) && buf->num_elements == 1);
  59
  60    memcpy(&context->desc.mjpeg.quantization_table.load_quantiser_table, mjpeg->load_quantiser_table, 4);
  61    memcpy(&context->desc.mjpeg.quantization_table.quantiser_table, mjpeg->quantiser_table, 4 * 64);
  62 }
  63
  64 void vlVaHandleHuffmanTableBufferType(vlVaContext *context, vlVaBuffer *buf)
  65 {
  66    /* TODO */
  67 }
  68
  69 void vlVaHandleSliceParameterBufferMJPEG(vlVaContext *context, vlVaBuffer *buf)
  70 {
  71    /* TODO */
  72 }