mirror of https://github.com/opencv/opencv.git
Open Source Computer Vision Library
https://opencv.org/
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
322 lines
10 KiB
322 lines
10 KiB
/////////////////////////////////////////////////////////////////////////// |
|
// |
|
// Copyright (c) 2007, Industrial Light & Magic, a division of Lucas |
|
// Digital Ltd. LLC |
|
// |
|
// All rights reserved. |
|
// |
|
// Redistribution and use in source and binary forms, with or without |
|
// modification, are permitted provided that the following conditions are |
|
// met: |
|
// * Redistributions of source code must retain the above copyright |
|
// notice, this list of conditions and the following disclaimer. |
|
// * 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. |
|
// * Neither the name of Industrial Light & Magic 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 |
|
// OWNER 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. |
|
// |
|
/////////////////////////////////////////////////////////////////////////// |
|
|
|
|
|
|
|
#ifndef INCLUDED_IMF_ACES_FILE_H |
|
#define INCLUDED_IMF_ACES_FILE_H |
|
|
|
|
|
//----------------------------------------------------------------------------- |
|
// |
|
// ACES image file I/O. |
|
// |
|
// This header file declares two classes that directly support |
|
// image file input and output according to the Academy Image |
|
// Interchange Framework. |
|
// |
|
// The Academy Image Interchange file format is a subset of OpenEXR: |
|
// |
|
// - Images are stored as scanlines. Tiles are not allowed. |
|
// |
|
// - Images contain three color channels, either |
|
// R, G, B (red, green, blue) or |
|
// Y, RY, BY (luminance, sub-sampled chroma) |
|
// |
|
// - Images may optionally contain an alpha channel. |
|
// |
|
// - Only three compression types are allowed: |
|
// - NO_COMPRESSION (file is not compressed) |
|
// - PIZ_COMPRESSION (lossless) |
|
// - B44A_COMPRESSION (lossy) |
|
// |
|
// - The "chromaticities" header attribute must specify |
|
// the ACES RGB primaries and white point. |
|
// |
|
// class AcesOutputFile writes an OpenEXR file, enforcing the |
|
// restrictions listed above. Pixel data supplied by application |
|
// software must already be in the ACES RGB space. |
|
// |
|
// class AcesInputFile reads an OpenEXR file. Pixel data delivered |
|
// to application software is guaranteed to be in the ACES RGB space. |
|
// If the RGB space of the file is not the same as the ACES space, |
|
// then the pixels are automatically converted: the pixels are |
|
// converted to CIE XYZ, a color adaptation transform shifts the |
|
// white point, and the result is converted to ACES RGB. |
|
// |
|
//----------------------------------------------------------------------------- |
|
|
|
#include <ImfHeader.h> |
|
#include <ImfRgba.h> |
|
#include "ImathVec.h" |
|
#include "ImathBox.h" |
|
#include <ImfThreading.h> |
|
#include <string> |
|
|
|
namespace Imf { |
|
|
|
|
|
class RgbaOutputFile; |
|
class RgbaInputFile; |
|
struct PreviewRgba; |
|
struct Chromaticities; |
|
|
|
// |
|
// ACES red, green, blue and white-point chromaticities. |
|
// |
|
|
|
const Chromaticities & acesChromaticities (); |
|
|
|
|
|
// |
|
// ACES output file. |
|
// |
|
|
|
class AcesOutputFile |
|
{ |
|
public: |
|
|
|
//--------------------------------------------------- |
|
// Constructor -- header is constructed by the caller |
|
//--------------------------------------------------- |
|
|
|
AcesOutputFile (const std::string &name, |
|
const Header &header, |
|
RgbaChannels rgbaChannels = WRITE_RGBA, |
|
int numThreads = globalThreadCount()); |
|
|
|
|
|
//---------------------------------------------------- |
|
// Constructor -- header is constructed by the caller, |
|
// file is opened by the caller, destructor will not |
|
// automatically close the file. |
|
//---------------------------------------------------- |
|
|
|
AcesOutputFile (OStream &os, |
|
const Header &header, |
|
RgbaChannels rgbaChannels = WRITE_RGBA, |
|
int numThreads = globalThreadCount()); |
|
|
|
|
|
//---------------------------------------------------------------- |
|
// Constructor -- header data are explicitly specified as function |
|
// call arguments (empty dataWindow means "same as displayWindow") |
|
//---------------------------------------------------------------- |
|
|
|
AcesOutputFile (const std::string &name, |
|
const Imath::Box2i &displayWindow, |
|
const Imath::Box2i &dataWindow = Imath::Box2i(), |
|
RgbaChannels rgbaChannels = WRITE_RGBA, |
|
float pixelAspectRatio = 1, |
|
const Imath::V2f screenWindowCenter = Imath::V2f (0, 0), |
|
float screenWindowWidth = 1, |
|
LineOrder lineOrder = INCREASING_Y, |
|
Compression compression = PIZ_COMPRESSION, |
|
int numThreads = globalThreadCount()); |
|
|
|
|
|
//----------------------------------------------- |
|
// Constructor -- like the previous one, but both |
|
// the display window and the data window are |
|
// Box2i (V2i (0, 0), V2i (width - 1, height -1)) |
|
//----------------------------------------------- |
|
|
|
AcesOutputFile (const std::string &name, |
|
int width, |
|
int height, |
|
RgbaChannels rgbaChannels = WRITE_RGBA, |
|
float pixelAspectRatio = 1, |
|
const Imath::V2f screenWindowCenter = Imath::V2f (0, 0), |
|
float screenWindowWidth = 1, |
|
LineOrder lineOrder = INCREASING_Y, |
|
Compression compression = PIZ_COMPRESSION, |
|
int numThreads = globalThreadCount()); |
|
|
|
|
|
//----------- |
|
// Destructor |
|
//----------- |
|
|
|
virtual ~AcesOutputFile (); |
|
|
|
|
|
//------------------------------------------------ |
|
// Define a frame buffer as the pixel data source: |
|
// Pixel (x, y) is at address |
|
// |
|
// base + x * xStride + y * yStride |
|
// |
|
//------------------------------------------------ |
|
|
|
void setFrameBuffer (const Rgba *base, |
|
size_t xStride, |
|
size_t yStride); |
|
|
|
|
|
//------------------------------------------------- |
|
// Write pixel data (see class Imf::OutputFile) |
|
// The pixels are assumed to contain ACES RGB data. |
|
//------------------------------------------------- |
|
|
|
void writePixels (int numScanLines = 1); |
|
int currentScanLine () const; |
|
|
|
|
|
//-------------------------- |
|
// Access to the file header |
|
//-------------------------- |
|
|
|
const Header & header () const; |
|
const Imath::Box2i & displayWindow () const; |
|
const Imath::Box2i & dataWindow () const; |
|
float pixelAspectRatio () const; |
|
const Imath::V2f screenWindowCenter () const; |
|
float screenWindowWidth () const; |
|
LineOrder lineOrder () const; |
|
Compression compression () const; |
|
RgbaChannels channels () const; |
|
|
|
|
|
// -------------------------------------------------------------------- |
|
// Update the preview image (see Imf::OutputFile::updatePreviewImage()) |
|
// -------------------------------------------------------------------- |
|
|
|
void updatePreviewImage (const PreviewRgba[]); |
|
|
|
|
|
private: |
|
|
|
AcesOutputFile (const AcesOutputFile &); // not implemented |
|
AcesOutputFile & operator = (const AcesOutputFile &); // not implemented |
|
|
|
class Data; |
|
|
|
Data * _data; |
|
}; |
|
|
|
|
|
// |
|
// ACES input file |
|
// |
|
|
|
class AcesInputFile |
|
{ |
|
public: |
|
|
|
//------------------------------------------------------- |
|
// Constructor -- opens the file with the specified name, |
|
// destructor will automatically close the file. |
|
//------------------------------------------------------- |
|
|
|
AcesInputFile (const std::string &name, |
|
int numThreads = globalThreadCount()); |
|
|
|
|
|
//----------------------------------------------------------- |
|
// Constructor -- attaches the new AcesInputFile object to a |
|
// file that has already been opened by the caller. |
|
// Destroying the AcesInputFile object will not automatically |
|
// close the file. |
|
//----------------------------------------------------------- |
|
|
|
AcesInputFile (IStream &is, |
|
int numThreads = globalThreadCount()); |
|
|
|
|
|
//----------- |
|
// Destructor |
|
//----------- |
|
|
|
virtual ~AcesInputFile (); |
|
|
|
|
|
//----------------------------------------------------- |
|
// Define a frame buffer as the pixel data destination: |
|
// Pixel (x, y) is at address |
|
// |
|
// base + x * xStride + y * yStride |
|
// |
|
//----------------------------------------------------- |
|
|
|
void setFrameBuffer (Rgba *base, |
|
size_t xStride, |
|
size_t yStride); |
|
|
|
|
|
//-------------------------------------------- |
|
// Read pixel data (see class Imf::InputFile) |
|
// Pixels returned will contain ACES RGB data. |
|
//-------------------------------------------- |
|
|
|
void readPixels (int scanLine1, int scanLine2); |
|
void readPixels (int scanLine); |
|
|
|
|
|
//-------------------------- |
|
// Access to the file header |
|
//-------------------------- |
|
|
|
const Header & header () const; |
|
const Imath::Box2i & displayWindow () const; |
|
const Imath::Box2i & dataWindow () const; |
|
float pixelAspectRatio () const; |
|
const Imath::V2f screenWindowCenter () const; |
|
float screenWindowWidth () const; |
|
LineOrder lineOrder () const; |
|
Compression compression () const; |
|
RgbaChannels channels () const; |
|
const char * fileName () const; |
|
bool isComplete () const; |
|
|
|
|
|
//---------------------------------- |
|
// Access to the file format version |
|
//---------------------------------- |
|
|
|
int version () const; |
|
|
|
private: |
|
|
|
AcesInputFile (const AcesInputFile &); // not implemented |
|
AcesInputFile & operator = (const AcesInputFile &); // not implemented |
|
|
|
class Data; |
|
|
|
Data * _data; |
|
}; |
|
|
|
|
|
} // namespace Imf |
|
|
|
#endif
|
|
|