rfx_decode.c

 
#include <freerdp/config.h>
 
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
 
#include <winpr/stream.h>
#include <freerdp/primitives.h>
 
#include "rfx_types.h"
#include "rfx_rlgr.h"
#include "rfx_differential.h"
#include "rfx_quantization.h"
#include "rfx_dwt.h"
 
#include "rfx_decode.h"
 
static INLINE void rfx_decode_component(RFX_CONTEXT* WINPR_RESTRICT context,
                                        const UINT32* WINPR_RESTRICT quantization_values,
                                        const BYTE* WINPR_RESTRICT data, size_t size,
                                        INT16* WINPR_RESTRICT buffer)
{
  INT16* dwt_buffer = NULL;
  dwt_buffer = BufferPool_Take(context->priv->BufferPool, -1); /* dwt_buffer */
  PROFILER_ENTER(context->priv->prof_rfx_decode_component)
  PROFILER_ENTER(context->priv->prof_rfx_rlgr_decode)
  WINPR_ASSERT(size <= UINT32_MAX);
  context->rlgr_decode(context->mode, data, (UINT32)size, buffer, 4096);
  PROFILER_EXIT(context->priv->prof_rfx_rlgr_decode)
  PROFILER_ENTER(context->priv->prof_rfx_differential_decode)
  rfx_differential_decode(buffer + 4032, 64);
  PROFILER_EXIT(context->priv->prof_rfx_differential_decode)
  PROFILER_ENTER(context->priv->prof_rfx_quantization_decode)
  context->quantization_decode(buffer, quantization_values);
  PROFILER_EXIT(context->priv->prof_rfx_quantization_decode)
  PROFILER_ENTER(context->priv->prof_rfx_dwt_2d_decode)
  context->dwt_2d_decode(buffer, dwt_buffer);
  PROFILER_EXIT(context->priv->prof_rfx_dwt_2d_decode)
  PROFILER_EXIT(context->priv->prof_rfx_decode_component)
  BufferPool_Return(context->priv->BufferPool, dwt_buffer);
}
 
/* rfx_decode_ycbcr_to_rgb code now resides in the primitives library. */
 
/* stride is bytes between rows in the output buffer. */
BOOL rfx_decode_rgb(RFX_CONTEXT* WINPR_RESTRICT context, const RFX_TILE* WINPR_RESTRICT tile,
                    BYTE* WINPR_RESTRICT rgb_buffer, UINT32 stride)
{
  union
  {
    const INT16** cpv;
    INT16** pv;
  } cnv;
  BOOL rc = TRUE;
  BYTE* pBuffer = NULL;
  INT16* pSrcDst[3];
  UINT32* y_quants = NULL;
  UINT32* cb_quants = NULL;
  UINT32* cr_quants = NULL;
  static const prim_size_t roi_64x64 = { 64, 64 };
  const primitives_t* prims = primitives_get();
  PROFILER_ENTER(context->priv->prof_rfx_decode_rgb)
  y_quants = context->quants + (10ULL * tile->quantIdxY);
  cb_quants = context->quants + (10ULL * tile->quantIdxCb);
  cr_quants = context->quants + (10ULL * tile->quantIdxCr);
  pBuffer = (BYTE*)BufferPool_Take(context->priv->BufferPool, -1);
  pSrcDst[0] = (INT16*)((&pBuffer[((8192ULL + 32ULL) * 0ULL) + 16ULL]));        /* y_r_buffer */
  pSrcDst[1] = (INT16*)((&pBuffer[((8192ULL + 32ULL) * 1ULL) + 16ULL]));        /* cb_g_buffer */
  pSrcDst[2] = (INT16*)((&pBuffer[((8192ULL + 32ULL) * 2ULL) + 16ULL]));        /* cr_b_buffer */
  rfx_decode_component(context, y_quants, tile->YData, tile->YLen, pSrcDst[0]); /* YData */
  rfx_decode_component(context, cb_quants, tile->CbData, tile->CbLen, pSrcDst[1]); /* CbData */
  rfx_decode_component(context, cr_quants, tile->CrData, tile->CrLen, pSrcDst[2]); /* CrData */
  PROFILER_ENTER(context->priv->prof_rfx_ycbcr_to_rgb)
 
  cnv.pv = pSrcDst;
  if (prims->yCbCrToRGB_16s8u_P3AC4R(cnv.cpv, 64 * sizeof(INT16), rgb_buffer, stride,
                                     context->pixel_format, &roi_64x64) != PRIMITIVES_SUCCESS)
    rc = FALSE;
 
  PROFILER_EXIT(context->priv->prof_rfx_ycbcr_to_rgb)
  PROFILER_EXIT(context->priv->prof_rfx_decode_rgb)
  BufferPool_Return(context->priv->BufferPool, pBuffer);
  return rc;
}