Method SaveTexture

renderdoc/replay/replay_controller.cpp:588–1446

}

ResultDetails ReplayController::SaveTexture(const TextureSave &saveData, const rdcstr &path)
{
  CHECK_REPLAY_THREAD();
  RENDERDOC_PROFILEFUNCTION();

  TextureSave sd = saveData;    // mutable copy

  if(sd.resourceId == ResourceId())
  {
    RETURN_ERROR_RESULT(ResultCode::InvalidParameter, "Invalid ID for %s getting texture data",
                        ToStr(sd.resourceId).c_str());
  }

  TextureDescription td = m_pDevice->GetTexture(sd.resourceId);

  // clamp sample/mip/slice indices
  if(td.msSamp == 1)
  {
    sd.sample.sampleIndex = 0;
    sd.sample.mapToArray = false;
  }
  else
  {
    if(sd.sample.sampleIndex != ~0U)
      sd.sample.sampleIndex = RDCCLAMP((uint32_t)sd.sample.sampleIndex, 0U, td.msSamp);
  }

  // don't support cube cruciform for non cubemaps, or
  // cubemap arrays
  if(!td.cubemap || td.arraysize != 6 || td.msSamp != 1)
    sd.slice.cubeCruciform = false;

  if(sd.mip != -1)
    sd.mip = RDCCLAMP(sd.mip, 0, (int32_t)td.mips);
  if(sd.slice.sliceIndex != -1)
    sd.slice.sliceIndex = RDCCLAMP(sd.slice.sliceIndex, 0, int32_t(td.arraysize * td.depth));

  if(td.arraysize * td.depth * td.msSamp == 1)
  {
    sd.slice.sliceIndex = 0;
    sd.slice.slicesAsGrid = false;
  }

  // can't extract a channel that's not in the source texture
  if(sd.channelExtract >= 0 && (uint32_t)sd.channelExtract >= td.format.compCount)
    sd.channelExtract = -1;

  sd.slice.sliceGridWidth = RDCMAX(sd.slice.sliceGridWidth, 1);

  // store sample count so we know how many 'slices' is one real slice
  // multisampled textures cannot have mips, subresource layout is same as would be for mips:
  // [slice0 sample0], [slice0 sample1], [slice1 sample0], [slice1 sample1]
  uint32_t sampleCount = RDCMAX(td.msSamp, 1U);
  bool multisampled = td.msSamp > 1;

  if(sd.sample.mapToArray)
    sd.sample.sampleIndex = 0;