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hdr_dpx_image_element.cpp
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/***************************************************************************
* Copyright (c) 2020, Broadcom Inc.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
***************************************************************************/
#include <string>
#include <iostream>
#include <fstream>
#include <memory>
#include <cmath>
#include "hdr_dpx.h"
#include "fifo.h"
#ifdef NDEBUG
#define ASSERT_MSG(condition, msg) 0
#else
#define ASSERT_MSG(condition, msg) \
(!(condition)) ? \
( std::cerr << "Assertion failed: (" << #condition << "), " \
<< "function " << __FUNCTION__ \
<< ", file " << __FILE__ \
<< ", line " << __LINE__ << "." \
<< std::endl << msg << std::endl, abort(), 0) : 1
#endif
#define LOG_ERROR(number, severity, msg) \
m_err.LogError(number, severity, ((severity == eInformational) ? "INFO #" : ((severity == eWarning) ? "WARNING #" : "ERROR #")) \
+ std::to_string(static_cast<int>(number)) + " in " \
+ "function " + __FUNCTION__ \
+ ", file " + __FILE__ \
+ ", line " + std::to_string(__LINE__) + ":\n" \
+ msg + "\n");
using namespace Dpx;
std::vector<DatumLabel> Dpx::DescriptorToDatumList(uint8_t desc)
{
std::vector<DatumLabel> dl;
dl.clear();
switch (desc)
{
case eDescUser:
case eDescUndefined:
dl.push_back(DATUM_UNSPEC);
break;
case eDescR:
dl.push_back(DATUM_R);
break;
case eDescG:
dl.push_back(DATUM_G);
break;
case eDescB:
dl.push_back(DATUM_B);
break;
case eDescA:
dl.push_back(DATUM_A);
break;
case eDescY:
dl.push_back(DATUM_Y);
break;
case eDescCbCr:
dl.push_back(DATUM_CB);
dl.push_back(DATUM_CR);
break;
case eDescZ:
dl.push_back(DATUM_Z);
break;
case eDescComposite:
dl.push_back(DATUM_COMPOSITE);
break;
case eDescCb:
dl.push_back(DATUM_CB);
break;
case eDescCr:
dl.push_back(DATUM_CR);
break;
case eDescRGB_268_1:
dl.push_back(DATUM_R);
dl.push_back(DATUM_G);
dl.push_back(DATUM_B);
break;
case eDescRGBA_268_1:
dl.push_back(DATUM_R);
dl.push_back(DATUM_G);
dl.push_back(DATUM_B);
dl.push_back(DATUM_A);
break;
case eDescABGR_268_1:
dl.push_back(DATUM_A);
dl.push_back(DATUM_B);
dl.push_back(DATUM_G);
dl.push_back(DATUM_R);
break;
case eDescBGR:
dl.push_back(DATUM_B);
dl.push_back(DATUM_G);
dl.push_back(DATUM_R);
break;
case eDescBGRA:
dl.push_back(DATUM_B);
dl.push_back(DATUM_G);
dl.push_back(DATUM_R);
dl.push_back(DATUM_A);
break;
case eDescARGB:
dl.push_back(DATUM_A);
dl.push_back(DATUM_R);
dl.push_back(DATUM_G);
dl.push_back(DATUM_B);
break;
case eDescRGB:
dl.push_back(DATUM_R);
dl.push_back(DATUM_G);
dl.push_back(DATUM_B);
break;
case eDescRGBA:
dl.push_back(DATUM_R);
dl.push_back(DATUM_G);
dl.push_back(DATUM_B);
dl.push_back(DATUM_A);
break;
case eDescABGR:
dl.push_back(DATUM_A);
dl.push_back(DATUM_B);
dl.push_back(DATUM_G);
dl.push_back(DATUM_R);
break;
case eDescCbYCrY:
dl.push_back(DATUM_CB);
dl.push_back(DATUM_Y);
dl.push_back(DATUM_CR);
dl.push_back(DATUM_Y2);
break;
case eDescCbYACrYA:
dl.push_back(DATUM_CB);
dl.push_back(DATUM_Y);
dl.push_back(DATUM_A);
dl.push_back(DATUM_CR);
dl.push_back(DATUM_Y2);
dl.push_back(DATUM_A2);
break;
case eDescCbYCr:
dl.push_back(DATUM_CB);
dl.push_back(DATUM_Y);
dl.push_back(DATUM_CR);
break;
case eDescCbYCrA:
dl.push_back(DATUM_CB);
dl.push_back(DATUM_Y);
dl.push_back(DATUM_CR);
dl.push_back(DATUM_A);
break;
case eDescCYY:
dl.push_back(DATUM_C);
dl.push_back(DATUM_Y);
dl.push_back(DATUM_Y2);
break;
case eDescCYAYA:
dl.push_back(DATUM_C);
dl.push_back(DATUM_Y);
dl.push_back(DATUM_A);
dl.push_back(DATUM_Y2);
dl.push_back(DATUM_A2);
break;
case eDescGeneric2:
dl.push_back(DATUM_UNSPEC);
dl.push_back(DATUM_UNSPEC2);
break;
case eDescGeneric3:
dl.push_back(DATUM_UNSPEC);
dl.push_back(DATUM_UNSPEC2);
dl.push_back(DATUM_UNSPEC3);
break;
case eDescGeneric4:
dl.push_back(DATUM_UNSPEC);
dl.push_back(DATUM_UNSPEC2);
dl.push_back(DATUM_UNSPEC3);
dl.push_back(DATUM_UNSPEC4);
break;
case eDescGeneric5:
dl.push_back(DATUM_UNSPEC);
dl.push_back(DATUM_UNSPEC2);
dl.push_back(DATUM_UNSPEC3);
dl.push_back(DATUM_UNSPEC4);
dl.push_back(DATUM_UNSPEC5);
break;
case eDescGeneric6:
dl.push_back(DATUM_UNSPEC);
dl.push_back(DATUM_UNSPEC2);
dl.push_back(DATUM_UNSPEC3);
dl.push_back(DATUM_UNSPEC4);
dl.push_back(DATUM_UNSPEC5);
dl.push_back(DATUM_UNSPEC6);
break;
case eDescGeneric7:
dl.push_back(DATUM_UNSPEC);
dl.push_back(DATUM_UNSPEC2);
dl.push_back(DATUM_UNSPEC3);
dl.push_back(DATUM_UNSPEC4);
dl.push_back(DATUM_UNSPEC5);
dl.push_back(DATUM_UNSPEC6);
dl.push_back(DATUM_UNSPEC7);
break;
case eDescGeneric8:
dl.push_back(DATUM_UNSPEC);
dl.push_back(DATUM_UNSPEC2);
dl.push_back(DATUM_UNSPEC3);
dl.push_back(DATUM_UNSPEC4);
dl.push_back(DATUM_UNSPEC5);
dl.push_back(DATUM_UNSPEC6);
dl.push_back(DATUM_UNSPEC7);
dl.push_back(DATUM_UNSPEC8);
break;
}
return dl;
}
uint8_t Dpx::DatumListToDescriptor(std::vector<DatumLabel> dl)
{
if (dl.size() == 0)
return 255;
if (dl.size() == 1)
{
if (dl[0] == DATUM_UNSPEC)
return eDescUser;
if (dl[0] == DATUM_R)
return eDescR;
if (dl[0] == DATUM_G)
return eDescG;
if (dl[0] == DATUM_B)
return eDescB;
if (dl[0] == DATUM_A)
return eDescA;
if (dl[0] == DATUM_Y)
return eDescY;
if (dl[0] == DATUM_Z)
return eDescZ;
if (dl[0] == DATUM_COMPOSITE)
return eDescComposite;
if (dl[0] == DATUM_CB)
return eDescCb;
if (dl[0] == DATUM_CR)
return eDescCr;
return 255;
}
if (dl.size() == 2)
{
if (dl[0] == DATUM_CB && dl[1] == DATUM_CR)
return eDescCbCr;
if (dl[0] == DATUM_UNSPEC && dl[1] == DATUM_UNSPEC2)
return eDescGeneric2;
return 255;
}
if (dl.size() == 3)
{
if (dl[0] == DATUM_B && dl[1] == DATUM_G && dl[2] == DATUM_R)
return eDescBGR;
if (dl[0] == DATUM_R && dl[1] == DATUM_G && dl[2] == DATUM_B)
return eDescRGB;
if (dl[0] == DATUM_CB && dl[1] == DATUM_Y && dl[2] == DATUM_CR)
return eDescCbYCr;
if (dl[0] == DATUM_C && dl[1] == DATUM_Y && dl[2] == DATUM_Y2)
return eDescCYY;
if (dl[0] == DATUM_UNSPEC && dl[1] == DATUM_UNSPEC2 && dl[2] == DATUM_UNSPEC3)
return eDescGeneric3;
return 255;
}
if (dl.size() == 4)
{
if (dl[0] == DATUM_B && dl[1] == DATUM_G && dl[2] == DATUM_R && dl[3] == DATUM_A)
return eDescBGRA;
if (dl[0] == DATUM_A && dl[1] == DATUM_R && dl[2] == DATUM_G && dl[3] == DATUM_B)
return eDescARGB;
if (dl[0] == DATUM_R && dl[1] == DATUM_G && dl[2] == DATUM_B && dl[3] == DATUM_A)
return eDescRGBA;
if (dl[0] == DATUM_A && dl[1] == DATUM_B && dl[2] == DATUM_G && dl[3] == DATUM_R)
return eDescARGB;
if (dl[0] == DATUM_CB && dl[1] == DATUM_Y && dl[2] == DATUM_CR && dl[3] == DATUM_Y2)
return eDescCbYCrY;
if (dl[0] == DATUM_CB && dl[1] == DATUM_Y && dl[2] == DATUM_CR && dl[3] == DATUM_A)
return eDescCbYCrA;
if (dl[0] == DATUM_UNSPEC && dl[1] == DATUM_UNSPEC2 && dl[2] == DATUM_UNSPEC3 && dl[3] == DATUM_UNSPEC4)
return eDescGeneric4;
return 255;
}
if (dl.size() == 5)
{
if (dl[0] == DATUM_C && dl[1] == DATUM_Y && dl[2] == DATUM_A && dl[3] == DATUM_Y2 && dl[4] == DATUM_A2)
return eDescCYAYA;
if (dl[0] == DATUM_UNSPEC && dl[1] == DATUM_UNSPEC2 && dl[2] == DATUM_UNSPEC3 && dl[3] == DATUM_UNSPEC4 &&
dl[4] == DATUM_UNSPEC5)
return eDescGeneric5;
return 255;
}
if (dl.size() == 6)
{
if (dl[0] == DATUM_CB && dl[1] == DATUM_Y && dl[2] == DATUM_A && dl[3] == DATUM_CR && dl[4] == DATUM_Y2 && dl[5] == DATUM_A2)
return eDescCbYACrYA;
if (dl[0] == DATUM_UNSPEC && dl[1] == DATUM_UNSPEC2 && dl[2] == DATUM_UNSPEC3 && dl[3] == DATUM_UNSPEC4 &&
dl[4] == DATUM_UNSPEC5 && dl[5] == DATUM_UNSPEC6)
return eDescGeneric6;
return 255;
}
if (dl.size() == 7)
{
if (dl[0] == DATUM_UNSPEC && dl[1] == DATUM_UNSPEC2 && dl[2] == DATUM_UNSPEC3 && dl[3] == DATUM_UNSPEC4 &&
dl[4] == DATUM_UNSPEC5 && dl[5] == DATUM_UNSPEC6 && dl[6] == DATUM_UNSPEC7)
return eDescGeneric7;
return 255;
}
if (dl.size() == 8)
{
if (dl[0] == DATUM_UNSPEC && dl[1] == DATUM_UNSPEC2 && dl[2] == DATUM_UNSPEC3 && dl[3] == DATUM_UNSPEC4 &&
dl[4] == DATUM_UNSPEC5 && dl[5] == DATUM_UNSPEC6 && dl[6] == DATUM_UNSPEC7 && dl[7] == DATUM_UNSPEC8)
return eDescGeneric8;
return 255;
}
return 255;
}
std::string HdrDpxImageElement::DatumLabelToName(Dpx::DatumLabel dl) const
{
switch (dl)
{
case DATUM_UNSPEC:
return "Unspec";
case DATUM_R:
return "R";
case DATUM_G:
return "G";
case DATUM_B:
return "B";
case DATUM_A:
return "A";
case DATUM_Y:
return "Y";
case DATUM_CB:
return "Cb";
case DATUM_CR:
return "Cr";
case DATUM_Z:
return "Z";
case DATUM_COMPOSITE:
return "Composite";
case DATUM_A2:
return "A2";
case DATUM_Y2:
return "Y2";
case DATUM_C:
return "C";
case DATUM_UNSPEC2:
return "Unspec2";
case DATUM_UNSPEC3:
return "Unspec3";
case DATUM_UNSPEC4:
return "Unspec4";
case DATUM_UNSPEC5:
return "Unspec5";
case DATUM_UNSPEC6:
return "Unspec6";
case DATUM_UNSPEC7:
return "Unspec7";
case DATUM_UNSPEC8:
return "Unspec8";
default:
return "Unrecognized";
}
}
HdrDpxImageElement::HdrDpxImageElement() : m_fifo(16)
{
m_isinitialized = false;
}
HdrDpxImageElement::HdrDpxImageElement(uint8_t ie_index, std::fstream *fstream_ptr, HDRDPXFILEFORMAT *dpxf_ptr, FileMap *file_map_ptr) : m_fifo(16)
{
m_is_header_locked = false;
Initialize(ie_index, fstream_ptr, dpxf_ptr, file_map_ptr);
}
void HdrDpxImageElement::Initialize(uint8_t ie_index, std::fstream *fstream_ptr, HDRDPXFILEFORMAT *dpxf_ptr, FileMap *file_map_ptr)
{
m_ie_index = ie_index;
m_isinitialized = true;
m_dpx_ie_ptr = &(dpxf_ptr->ImageHeader.ImageElement[ie_index]);
m_dpx_hdr_ptr = dpxf_ptr;
m_filestream_ptr = fstream_ptr;
m_file_map_ptr = file_map_ptr;
m_is_open_for_read = false;
m_is_open_for_write = false;
m_is_header_locked = false;
m_err.Clear();
m_warnings.clear();
}
HdrDpxImageElement::~HdrDpxImageElement()
{
;
}
void HdrDpxImageElement::Deinitialize()
{
m_isinitialized = false;
}
void HdrDpxImageElement::ComputeWidthAndHeight()
{
m_is_h_subsampled = m_is_v_subsampled = false;
if (m_dpx_ie_ptr->Descriptor == eDescCb || m_dpx_ie_ptr->Descriptor == eDescCr)
m_is_h_subsampled = m_is_v_subsampled = true;
else if (m_dpx_ie_ptr->Descriptor == eDescCbCr || m_dpx_ie_ptr->Descriptor == eDescCbYCrY ||
m_dpx_ie_ptr->Descriptor == eDescCbYACrYA || m_dpx_ie_ptr->Descriptor == eDescCYY ||
m_dpx_ie_ptr->Descriptor == eDescCYAYA)
m_is_h_subsampled = true;
m_width = m_dpx_hdr_ptr->ImageHeader.PixelsPerLine / (m_is_h_subsampled ? 2 : 1);
m_height = m_dpx_hdr_ptr->ImageHeader.LinesPerElement / (m_is_v_subsampled ? 2 : 1);
}
void HdrDpxImageElement::OpenForReading(bool bswap)
{
ComputeWidthAndHeight();
m_byte_swap = bswap;
m_direction_r2l = (m_dpx_hdr_ptr->FileHeader.DatumMappingDirection == 0);
m_is_open_for_read = true;
m_is_open_for_write = false;
m_is_header_locked = true;
}
void HdrDpxImageElement::OpenForWriting(bool bswap)
{
if (m_dpx_ie_ptr->Descriptor == eDescUndefined)
{
LOG_ERROR(eFileWriteError, eFatal, "Cannot write image element " + std::to_string(m_ie_index + 1) + " without descriptor field");
return;
}
if (m_dpx_ie_ptr->BitSize == eBitDepthUndefined)
{
LOG_ERROR(eFileWriteError, eFatal, "Cannot write image element " + std::to_string(m_ie_index + 1) + " without bit depth field");
return;
}
ComputeWidthAndHeight();
m_byte_swap = bswap;
m_direction_r2l = (m_dpx_hdr_ptr->FileHeader.DatumMappingDirection == 0);
m_is_open_for_write = true;
m_is_open_for_read = false;
m_is_header_locked = true;
}
void HdrDpxImageElement::LockHeader(void)
{
m_is_header_locked = true;
}
void HdrDpxImageElement::UnlockHeader(void)
{
m_is_header_locked = false;
}
std::vector<DatumLabel> HdrDpxImageElement::GetDatumLabels(void) const
{
return DescriptorToDatumList(m_dpx_ie_ptr->Descriptor);
}
uint8_t HdrDpxImageElement::GetNumberOfComponents(void) const
{
return static_cast<int>(GetDatumLabels().size());
}
uint8_t HdrDpxImageElement::GetDatumLabelIndex(DatumLabel dl) const
{
uint8_t i;
std::vector<DatumLabel> dl_list = GetDatumLabels();
for (i = 0; i < GetNumberOfComponents(); ++i)
if (dl == dl_list[i])
return i;
return 0xff;
}
uint32_t HdrDpxImageElement::GetRowSizeInBytes(bool include_padding) const
{
uint8_t num_c = GetNumberOfComponents();
uint32_t idw_per_line;
if (m_dpx_ie_ptr->BitSize == 64)
idw_per_line = static_cast<uint32_t>(2 * num_c * m_width);
else if (m_dpx_ie_ptr->BitSize == 32)
idw_per_line = static_cast<uint32_t>(num_c * m_width);
else if (m_dpx_ie_ptr->BitSize == 16)
idw_per_line = static_cast<uint32_t>(std::ceil(num_c * m_width / 2.0));
else if (m_dpx_ie_ptr->Packing == 0 || m_dpx_ie_ptr->BitSize == 8)
idw_per_line = static_cast<uint32_t>(std::ceil(num_c * m_width * m_dpx_ie_ptr->BitSize / 8.0 / 4.0));
else
{
if (m_dpx_ie_ptr->BitSize == 10) // 3 datums per IDW
idw_per_line = static_cast<uint32_t>(std::ceil(num_c * m_width / 3.0));
else // 12 bits, 2 datums per IDW
idw_per_line = static_cast<uint32_t>(std::ceil(num_c * m_width / 2.0));
}
if(include_padding)
idw_per_line += m_dpx_ie_ptr->EndOfLinePadding / 4;
return idw_per_line * 4;
}
uint32_t HdrDpxImageElement::GetRowSizeInDatums() const
{
return GetWidth() * GetNumberOfComponents();
}
uint32_t HdrDpxImageElement::GetOffsetForRow(uint32_t row) const
{
return m_dpx_ie_ptr->DataOffset + GetRowSizeInBytes(true) * row;
}
void HdrDpxImageElement::Dpx2AppPixels(uint32_t row, int32_t *datum_ptr)
{
if (!m_isinitialized)
{
LOG_ERROR(eBadParameter, eFatal, "Tried to read pixels from uninitialized image element");
return;
}
if (!m_is_open_for_read || !m_filestream_ptr->good())
{
LOG_ERROR(eFileReadError, eFatal, "File read error");
return;
}
if (m_dpx_ie_ptr->BitSize >= 32)
{
LOG_ERROR(eBadParameter, eFatal, "Failed attempt reading integer pixels from floating point file");
return;
}
m_int_row = datum_ptr;
ReadRow(row);
}
void HdrDpxImageElement::Dpx2AppPixels(uint32_t row, float *datum_ptr)
{
if (!m_isinitialized)
{
LOG_ERROR(eBadParameter, eFatal, "Tried to read pixels from uninitialized image element");
return;
}
if (!m_is_open_for_read || !m_filestream_ptr->good())
{
LOG_ERROR(eFileReadError, eFatal, "File read error");
return;
}
if (m_dpx_ie_ptr->BitSize != 32)
{
LOG_ERROR(eBadParameter, eFatal, "Failed attempt reading single-precision pixels from file");
return;
}
m_float_row = datum_ptr;
ReadRow(row);
}
void HdrDpxImageElement::Dpx2AppPixels(uint32_t row, double *datum_ptr)
{
if (!m_isinitialized)
{
LOG_ERROR(eBadParameter, eFatal, "Tried to read pixels from uninitialized image element");
return;
}
if (!m_is_open_for_read || !m_filestream_ptr->good())
{
LOG_ERROR(eFileReadError, eFatal, "File read error");
return;
}
if (m_dpx_ie_ptr->BitSize != 32)
{
LOG_ERROR(eBadParameter, eFatal, "Failed attempt reading double-precision pixels from file");
return;
}
m_double_row = datum_ptr;
ReadRow(row);
}
#define READ_DPX_32(x) (m_byte_swap ? (((((x) & 0xff) << 24) | (((x) & 0xff00) << 8) | (((x) & 0xff0000) >> 8) | ((x) >> 24))) : (x))
void HdrDpxImageElement::ReadRow(uint32_t row)
{
int component;
int num_components;
uint32_t xpos;
uint32_t image_data_word;
Fifo fifo(16);
int32_t int_datum = 0;
uint32_t row_wr_idx = 0;
uint32_t expected_zero;
union {
double r64;
uint32_t d[2];
} c_r64;
union {
float r32;
uint32_t d;
} c_r32;
int rle_state = 0; // 0 = flag, 1-n = component value
int32_t run_length = 0;
int rle_count = 0;
int32_t rle_pixel[8];
bool rle_is_same;
const bool is_signed = (m_dpx_ie_ptr->DataSign == 1);
const uint8_t bpc = m_dpx_ie_ptr->BitSize;
if (m_dpx_ie_ptr->Encoding == 1) // RLE
{
if (row == 0)
{
m_filestream_ptr->seekg(m_dpx_ie_ptr->DataOffset);
}
else if (row != m_previous_row + 1)
{
LOG_ERROR(eBadParameter, eFatal, "When RLE is enabled, rows must be read in sequential order");
return;
}
else
m_filestream_ptr->seekg(m_previous_file_offset);
m_previous_row = row;
}
else
m_filestream_ptr->seekg(GetOffsetForRow(row));
num_components = GetNumberOfComponents();
xpos = 0;
component = 0;
while (xpos < m_width && component < num_components)
{
while (fifo.m_fullness <= 32)
{
// Read 32-bit word & byte swap if needed
m_filestream_ptr->read((char *)&image_data_word, 4);
image_data_word = READ_DPX_32(image_data_word);
fifo.PutBits(image_data_word, 32);
}
switch (bpc)
{
case 1:
case 8:
case 16:
int_datum = fifo.GetDatum(bpc, is_signed, m_direction_r2l);
break;
case 10:
case 12:
if (m_dpx_ie_ptr->Packing == 1) // Method A
{
if (m_direction_r2l)
{
if (fifo.m_fullness == 48 || fifo.m_fullness == 64) // start with padding bits
{
if (bpc == 10)
{
expected_zero = fifo.FlipGetBitsUi(2);
if (expected_zero)
{
m_warn_unexpected_nonzero_data_bits = true;
m_warn_image_data_word_mask |= image_data_word;
}
}
else // 12-bit
{
expected_zero = fifo.FlipGetBitsUi(4);
if (expected_zero)
{
m_warn_unexpected_nonzero_data_bits = true;
m_warn_image_data_word_mask |= image_data_word;
}
}
}
}
int_datum = fifo.GetDatum(bpc, is_signed, m_direction_r2l);
if (!m_direction_r2l)
{
if (fifo.m_fullness == 64 - 30)
{
expected_zero = fifo.GetBitsUi(2);
if (expected_zero)
{
m_warn_unexpected_nonzero_data_bits = true;
m_warn_image_data_word_mask |= image_data_word;
}
}
else if (fifo.m_fullness == 64 - 12 || fifo.m_fullness == 64 - 28)
{
expected_zero = fifo.GetBitsUi(4);
if (expected_zero)
{
m_warn_unexpected_nonzero_data_bits = true;
m_warn_image_data_word_mask |= image_data_word;
}
}
}
}
else if (m_dpx_ie_ptr->Packing == 2) // Method B
{
if (!m_direction_r2l)
{
if (fifo.m_fullness == 64 - 0 || fifo.m_fullness == 64 - 16)
{
if (bpc == 10)
{
expected_zero = fifo.GetBitsUi(2);
if (expected_zero)
{
m_warn_unexpected_nonzero_data_bits = true;
m_warn_image_data_word_mask |= image_data_word;
}
}
else
{
expected_zero = fifo.GetBitsUi(4);
if (expected_zero)
{
m_warn_unexpected_nonzero_data_bits = true;
m_warn_image_data_word_mask |= image_data_word;
}
}
}
}
int_datum = fifo.GetDatum(bpc, is_signed, m_direction_r2l);
if (m_direction_r2l)
{
if (fifo.m_fullness == 64 - 30)
{
expected_zero = fifo.FlipGetBitsUi(2);
if (expected_zero)
{
m_warn_unexpected_nonzero_data_bits = true;
m_warn_image_data_word_mask |= image_data_word;
}
}
else if (fifo.m_fullness == 64 - 12 || fifo.m_fullness == 64 - 28)
{
expected_zero = fifo.FlipGetBitsUi(4);
if (expected_zero)
{
m_warn_unexpected_nonzero_data_bits = true;
m_warn_image_data_word_mask |= image_data_word;
}
}
}
}
else // Packed
{
int_datum = fifo.GetDatum(bpc, is_signed, m_direction_r2l);
}
break;
case 32:
c_r32.d = fifo.GetBitsUi(32);
m_float_row[row_wr_idx++] = c_r32.r32;
break;
case 64:
c_r64.d[0] = fifo.GetBitsUi(32);
c_r64.d[1] = fifo.GetBitsUi(32);
m_double_row[row_wr_idx++] = c_r64.r64;
break;
}
if (m_dpx_ie_ptr->Encoding == 1) // RLE
{
if (rle_state == 0)
{
rle_state++;
run_length = (int_datum >> 1) & INT16_MAX;
if (run_length == 0 && !m_warn_zero_run_length)
{
m_warn_zero_run_length = true;
m_warnings.push_back("Encountered a run-length of zero, first occurred at " + std::to_string(xpos) + ", " + std::to_string(row));
}
rle_count = 0;
rle_is_same = (int_datum & 1);
}
else if (component == num_components - 1)
{
m_int_row[row_wr_idx++] = int_datum;
rle_pixel[component] = int_datum;
if (rle_is_same)
{
if (xpos + run_length > m_width && !m_warn_rle_same_past_eol)
{
m_warn_rle_same_past_eol = true;
m_warnings.push_back("RLE same-pixel run went past the end of a line, first occurred at " + std::to_string(xpos) + ", " + std::to_string(row));
}
for (int i = 1; i < run_length; ++i)
{
for (int c = 0; c < num_components; ++c)
{
m_int_row[row_wr_idx++] = rle_pixel[c];
}
}
component = 0;
xpos += MAX(1, run_length);
rle_state = 0;
}
else
{
rle_count++;
xpos++;
component = 0;
if (rle_count >= run_length)
rle_state = 0;
else
{
if (xpos >= m_width && !m_warn_rle_diff_past_eol)
{
m_warn_rle_diff_past_eol = true;
m_warnings.push_back("RLE different-pixel run went past the end of a line, first occurred at " + std::to_string(xpos) + ", " + std::to_string(row));
}
}
}
}
else
{
m_int_row[row_wr_idx++] = int_datum;
rle_pixel[component] = int_datum;
component++;
}
}
else // No RLE
{
if(bpc < 32)
m_int_row[row_wr_idx++] = int_datum;
component++;
if (component == num_components)
{
component = 0;
xpos++;
}
}
if (xpos > m_width)
{
LOG_ERROR(eBadParameter, eFatal, "RLE decode went past the end of line\n");
return;
}
}
m_previous_file_offset = static_cast<uint32_t>(m_filestream_ptr->tellg()) - 4 * (fifo.m_fullness >> 5);
}
void HdrDpxImageElement::WriteFlush()
{
uint32_t image_data_word;
while (m_fifo.m_fullness >= 32)
{
image_data_word = m_fifo.GetBitsUi(32);
if (m_byte_swap)
ByteSwap32((void *)(&image_data_word));
m_filestream_ptr->write((char *)(&image_data_word), 4);
}
}
void HdrDpxImageElement::WriteDatum(int32_t datum)
{
const uint8_t bpc = m_dpx_ie_ptr->BitSize;
switch (m_dpx_ie_ptr->Packing)
{
case 0:
m_fifo.PutDatum(datum, bpc, m_direction_r2l);
break;
case 1: /* Method A */
if (m_direction_r2l && (m_fifo.m_fullness == 0 || m_fifo.m_fullness == 16))
m_fifo.FlipPutBits(0, (bpc == 10) ? 2 : 4);
m_fifo.PutDatum(datum, bpc, m_direction_r2l);
if (!m_direction_r2l && (m_fifo.m_fullness == 12 || m_fifo.m_fullness == 28 || m_fifo.m_fullness == 30))
m_fifo.PutBits(0, (bpc == 10) ? 2 : 4);
break; /* Method B */
case 2:
if (!m_direction_r2l && (m_fifo.m_fullness == 0 || m_fifo.m_fullness == 16))
m_fifo.PutBits(0, (bpc == 10) ? 2 : 4);
m_fifo.PutDatum(datum, bpc, m_direction_r2l);
if (m_direction_r2l && (m_fifo.m_fullness == 12 || m_fifo.m_fullness == 28 || m_fifo.m_fullness == 30))
m_fifo.FlipPutBits(0, (bpc == 10) ? 2 : 4);
break;
}
WriteFlush();
}
void HdrDpxImageElement::WritePixel(uint32_t xpos)
{
int component;
int num_components;
union {
double r64;
uint32_t d[2];
} c_r64;
union {
float r32;
uint32_t d;
} c_r32;
int32_t int_datum;
num_components = GetNumberOfComponents();
for (component = 0; component < num_components; ++component)
{
switch (m_dpx_ie_ptr->BitSize)
{
case 1:
case 8:
case 10:
case 12:
case 16:
int_datum = m_int_row[xpos * num_components + component];
WriteDatum(int_datum);
break;
case 32:
c_r32.r32 = m_float_row[xpos * num_components + component];
m_fifo.PutBits(c_r32.d, 32);
WriteFlush();
break;
case 64:
c_r64.r64 = m_double_row[xpos * num_components + component];
m_fifo.PutBits(c_r64.d[0], 32);
m_fifo.PutBits(c_r64.d[1], 32);
WriteFlush();
break;
}
}
}
bool HdrDpxImageElement::IsNextSame(uint32_t xpos, int32_t pixel[])
{
int num_components;
if (xpos >= m_width - 1)
return false;
num_components = GetNumberOfComponents();
for (int c = 0; c < num_components; ++c)
{
if (pixel[c] != m_int_row[(xpos + 1) * num_components + c])
return false;
}
return true;
}
void HdrDpxImageElement::WriteLineEnd()
{
if (m_fifo.m_fullness & 0x1f) // not an even multiple of 32
m_fifo.PutDatum(0, 32 - (m_fifo.m_fullness & 0x1f), m_direction_r2l);
WriteFlush();
}
void HdrDpxImageElement::App2DpxPixels(uint32_t row, int32_t *datum_ptr)
{
// There is no check on whether the d pointer is valid or the size of d, that is the responsiblility of the caller
if (!m_isinitialized)
{
LOG_ERROR(eBadParameter, eFatal, "Tried to write pixels to uninitialized image element");
return;
}
if (!m_is_open_for_write || !m_filestream_ptr->good())
{