src/gallium/state_trackers/va/picture_mjpeg.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2017 Advanced Micro Devices, Inc.
   4  * All Rights Reserved.
   5  *
   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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   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  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.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR
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  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  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    unsigned sf;
  34    int i;
  35
  36    assert(buf->size >= sizeof(VAPictureParameterBufferJPEGBaseline) && buf->num_elements == 1);
  37
  38    context->desc.mjpeg.picture_parameter.picture_width = mjpeg->picture_width;
  39    context->desc.mjpeg.picture_parameter.picture_height = mjpeg->picture_height;
  40
  41    for (i = 0; i < mjpeg->num_components; ++i) {
  42       context->desc.mjpeg.picture_parameter.components[i].component_id =
  43          mjpeg->components[i].component_id;
  44       context->desc.mjpeg.picture_parameter.components[i].h_sampling_factor =
  45          mjpeg->components[i].h_sampling_factor;
  46       context->desc.mjpeg.picture_parameter.components[i].v_sampling_factor =
  47          mjpeg->components[i].v_sampling_factor;
  48       context->desc.mjpeg.picture_parameter.components[i].quantiser_table_selector =
  49          mjpeg->components[i].quantiser_table_selector;
  50
  51       sf = mjpeg->components[i].h_sampling_factor << 4 | mjpeg->components[i].v_sampling_factor;
  52       context->mjpeg.sampling_factor <<= 8;
  53       context->mjpeg.sampling_factor |= sf;
  54    }
  55
  56    context->desc.mjpeg.picture_parameter.num_components = mjpeg->num_components;
  57 }
  58
  59 void vlVaHandleIQMatrixBufferMJPEG(vlVaContext *context, vlVaBuffer *buf)
  60 {
  61    VAIQMatrixBufferJPEGBaseline *mjpeg = buf->data;
  62
  63    assert(buf->size >= sizeof(VAIQMatrixBufferJPEGBaseline) && buf->num_elements == 1);
  64
  65    memcpy(&context->desc.mjpeg.quantization_table.load_quantiser_table, mjpeg->load_quantiser_table, 4);
  66    memcpy(&context->desc.mjpeg.quantization_table.quantiser_table, mjpeg->quantiser_table, 4 * 64);
  67 }
  68
  69 void vlVaHandleHuffmanTableBufferType(vlVaContext *context, vlVaBuffer *buf)
  70 {
  71    VAHuffmanTableBufferJPEGBaseline *mjpeg = buf->data;
  72    int i;
  73
  74    assert(buf->size >= sizeof(VASliceParameterBufferJPEGBaseline) && buf->num_elements == 1);
  75
  76    for (i = 0; i < 2; ++i) {
  77       context->desc.mjpeg.huffman_table.load_huffman_table[i] = mjpeg->load_huffman_table[i];
  78
  79       memcpy(&context->desc.mjpeg.huffman_table.table[i].num_dc_codes,
  80          mjpeg->huffman_table[i].num_dc_codes, 16);
  81       memcpy(&context->desc.mjpeg.huffman_table.table[i].dc_values,
  82          mjpeg->huffman_table[i].dc_values, 12);
  83       memcpy(&context->desc.mjpeg.huffman_table.table[i].num_ac_codes,
  84          mjpeg->huffman_table[i].num_ac_codes, 16);
  85       memcpy(&context->desc.mjpeg.huffman_table.table[i].ac_values,
  86          mjpeg->huffman_table[i].ac_values, 162);
  87       memcpy(&context->desc.mjpeg.huffman_table.table[i].pad, mjpeg->huffman_table[i].pad, 2);
  88    }
  89 }
  90
  91 void vlVaHandleSliceParameterBufferMJPEG(vlVaContext *context, vlVaBuffer *buf)
  92 {
  93    VASliceParameterBufferJPEGBaseline *mjpeg = buf->data;
  94    int i;
  95
  96    assert(buf->size >= sizeof(VASliceParameterBufferJPEGBaseline) && buf->num_elements == 1);
  97
  98    context->desc.mjpeg.slice_parameter.slice_data_size = mjpeg->slice_data_size;
  99    context->desc.mjpeg.slice_parameter.slice_data_offset = mjpeg->slice_data_offset;
 100    context->desc.mjpeg.slice_parameter.slice_data_flag = mjpeg->slice_data_flag;
 101    context->desc.mjpeg.slice_parameter.slice_horizontal_position = mjpeg->slice_horizontal_position;
 102    context->desc.mjpeg.slice_parameter.slice_vertical_position = mjpeg->slice_vertical_position;
 103
 104    for (i = 0; i < mjpeg->num_components; ++i) {
 105       context->desc.mjpeg.slice_parameter.components[i].component_selector =
 106          mjpeg->components[i].component_selector;
 107       context->desc.mjpeg.slice_parameter.components[i].dc_table_selector =
 108          mjpeg->components[i].dc_table_selector;
 109       context->desc.mjpeg.slice_parameter.components[i].ac_table_selector =
 110          mjpeg->components[i].ac_table_selector;
 111    }
 112
 113    context->desc.mjpeg.slice_parameter.num_components = mjpeg->num_components;
 114    context->desc.mjpeg.slice_parameter.restart_interval = mjpeg->restart_interval;
 115    context->desc.mjpeg.slice_parameter.num_mcus = mjpeg->num_mcus;
 116 }