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//
// SPDX-License-Identifier: BSD-3-Clause
// Copyright (c) Contributors to the OpenEXR Project.
//
#ifndef INCLUDED_IMF_C_RGBA_FILE_H
#define INCLUDED_IMF_C_RGBA_FILE_H
#include "ImfExport.h"
#include <stdlib.h>
#ifdef __cplusplus
extern "C" {
#endif
/*
** Interpreting unsigned shorts as 16-bit floating point numbers
*/
typedef unsigned short ImfHalf;
IMF_EXPORT
void ImfFloatToHalf (float f,
ImfHalf *h);
IMF_EXPORT
void ImfFloatToHalfArray (int n,
const float f[/*n*/],
ImfHalf h[/*n*/]);
IMF_EXPORT
float ImfHalfToFloat (ImfHalf h);
IMF_EXPORT
void ImfHalfToFloatArray (int n,
const ImfHalf h[/*n*/],
float f[/*n*/]);
/*
** RGBA pixel; memory layout must be the same as struct Imf::Rgba.
*/
struct ImfRgba
{
ImfHalf r;
ImfHalf g;
ImfHalf b;
ImfHalf a;
};
typedef struct ImfRgba ImfRgba;
/*
** Magic number; this must be the same as Imf::MAGIC
*/
#define IMF_MAGIC 20000630
/*
** Version number; this must be the same as Imf::EXR_VERSION
*/
#define IMF_VERSION_NUMBER 2
/*
** Line order; values must the the same as in Imf::LineOrder.
*/
#define IMF_INCREASING_Y 0
#define IMF_DECREASING_Y 1
#define IMF_RANDOM_Y 2
/*
** Compression types; values must be the same as in Imf::Compression.
*/
#define IMF_NO_COMPRESSION 0
#define IMF_RLE_COMPRESSION 1
#define IMF_ZIPS_COMPRESSION 2
#define IMF_ZIP_COMPRESSION 3
#define IMF_PIZ_COMPRESSION 4
#define IMF_PXR24_COMPRESSION 5
#define IMF_B44_COMPRESSION 6
#define IMF_B44A_COMPRESSION 7
#define IMF_DWAA_COMPRESSION 8
#define IMF_DWAB_COMPRESSION 9
/*
** Channels; values must be the same as in Imf::RgbaChannels.
*/
#define IMF_WRITE_R 0x01
#define IMF_WRITE_G 0x02
#define IMF_WRITE_B 0x04
#define IMF_WRITE_A 0x08
#define IMF_WRITE_Y 0x10
#define IMF_WRITE_C 0x20
#define IMF_WRITE_RGB 0x07
#define IMF_WRITE_RGBA 0x0f
#define IMF_WRITE_YC 0x30
#define IMF_WRITE_YA 0x18
#define IMF_WRITE_YCA 0x38
/*
** Level modes; values must be the same as in Imf::LevelMode
*/
#define IMF_ONE_LEVEL 0
#define IMF_MIPMAP_LEVELS 1
#define IMF_RIPMAP_LEVELS 2
/*
** Level rounding modes; values must be the same as in Imf::LevelRoundingMode
*/
#define IMF_ROUND_DOWN 0
#define IMF_ROUND_UP 1
/*
** RGBA file header
*/
struct ImfHeader;
typedef struct ImfHeader ImfHeader;
IMF_EXPORT
ImfHeader * ImfNewHeader (void);
IMF_EXPORT
void ImfDeleteHeader (ImfHeader *hdr);
IMF_EXPORT
ImfHeader * ImfCopyHeader (const ImfHeader *hdr);
IMF_EXPORT
void ImfHeaderSetDisplayWindow (ImfHeader *hdr,
int xMin, int yMin,
int xMax, int yMax);
IMF_EXPORT
void ImfHeaderDisplayWindow (const ImfHeader *hdr,
int *xMin, int *yMin,
int *xMax, int *yMax);
IMF_EXPORT
void ImfHeaderSetDataWindow (ImfHeader *hdr,
int xMin, int yMin,
int xMax, int yMax);
IMF_EXPORT
void ImfHeaderDataWindow (const ImfHeader *hdr,
int *xMin, int *yMin,
int *xMax, int *yMax);
IMF_EXPORT
void ImfHeaderSetPixelAspectRatio (ImfHeader *hdr,
float pixelAspectRatio);
IMF_EXPORT
float ImfHeaderPixelAspectRatio (const ImfHeader *hdr);
IMF_EXPORT
void ImfHeaderSetScreenWindowCenter (ImfHeader *hdr,
float x, float y);
IMF_EXPORT
void ImfHeaderScreenWindowCenter (const ImfHeader *hdr,
float *x, float *y);
IMF_EXPORT
void ImfHeaderSetScreenWindowWidth (ImfHeader *hdr,
float width);
IMF_EXPORT
float ImfHeaderScreenWindowWidth (const ImfHeader *hdr);
IMF_EXPORT
void ImfHeaderSetLineOrder (ImfHeader *hdr,
int lineOrder);
IMF_EXPORT
int ImfHeaderLineOrder (const ImfHeader *hdr);
IMF_EXPORT
void ImfHeaderSetCompression (ImfHeader *hdr,
int compression);
IMF_EXPORT
int ImfHeaderCompression (const ImfHeader *hdr);
IMF_EXPORT
int ImfHeaderSetIntAttribute (ImfHeader *hdr,
const char name[],
int value);
IMF_EXPORT
int ImfHeaderIntAttribute (const ImfHeader *hdr,
const char name[],
int *value);
IMF_EXPORT
int ImfHeaderSetFloatAttribute (ImfHeader *hdr,
const char name[],
float value);
IMF_EXPORT
int ImfHeaderSetDoubleAttribute (ImfHeader *hdr,
const char name[],
double value);
IMF_EXPORT
int ImfHeaderFloatAttribute (const ImfHeader *hdr,
const char name[],
float *value);
IMF_EXPORT
int ImfHeaderDoubleAttribute (const ImfHeader *hdr,
const char name[],
double *value);
IMF_EXPORT
int ImfHeaderSetStringAttribute (ImfHeader *hdr,
const char name[],
const char value[]);
IMF_EXPORT
int ImfHeaderStringAttribute (const ImfHeader *hdr,
const char name[],
const char **value);
IMF_EXPORT
int ImfHeaderSetBox2iAttribute (ImfHeader *hdr,
const char name[],
int xMin, int yMin,
int xMax, int yMax);
IMF_EXPORT
int ImfHeaderBox2iAttribute (const ImfHeader *hdr,
const char name[],
int *xMin, int *yMin,
int *xMax, int *yMax);
IMF_EXPORT
int ImfHeaderSetBox2fAttribute (ImfHeader *hdr,
const char name[],
float xMin, float yMin,
float xMax, float yMax);
IMF_EXPORT
int ImfHeaderBox2fAttribute (const ImfHeader *hdr,
const char name[],
float *xMin, float *yMin,
float *xMax, float *yMax);
IMF_EXPORT
int ImfHeaderSetV2iAttribute (ImfHeader *hdr,
const char name[],
int x, int y);
IMF_EXPORT
int ImfHeaderV2iAttribute (const ImfHeader *hdr,
const char name[],
int *x, int *y);
IMF_EXPORT
int ImfHeaderSetV2fAttribute (ImfHeader *hdr,
const char name[],
float x, float y);
IMF_EXPORT
int ImfHeaderV2fAttribute (const ImfHeader *hdr,
const char name[],
float *x, float *y);
IMF_EXPORT
int ImfHeaderSetV3iAttribute (ImfHeader *hdr,
const char name[],
int x, int y, int z);
IMF_EXPORT
int ImfHeaderV3iAttribute (const ImfHeader *hdr,
const char name[],
int *x, int *y, int *z);
IMF_EXPORT
int ImfHeaderSetV3fAttribute (ImfHeader *hdr,
const char name[],
float x, float y, float z);
IMF_EXPORT
int ImfHeaderV3fAttribute (const ImfHeader *hdr,
const char name[],
float *x, float *y, float *z);
IMF_EXPORT
int ImfHeaderSetM33fAttribute (ImfHeader *hdr,
const char name[],
const float m[3][3]);
IMF_EXPORT
int ImfHeaderM33fAttribute (const ImfHeader *hdr,
const char name[],
float m[3][3]);
IMF_EXPORT
int ImfHeaderSetM44fAttribute (ImfHeader *hdr,
const char name[],
const float m[4][4]);
IMF_EXPORT
int ImfHeaderM44fAttribute (const ImfHeader *hdr,
const char name[],
float m[4][4]);
/*
** RGBA output file
*/
struct ImfOutputFile;
typedef struct ImfOutputFile ImfOutputFile;
IMF_EXPORT
ImfOutputFile * ImfOpenOutputFile (const char name[],
const ImfHeader *hdr,
int channels);
IMF_EXPORT
int ImfCloseOutputFile (ImfOutputFile *out);
IMF_EXPORT
int ImfOutputSetFrameBuffer (ImfOutputFile *out,
const ImfRgba *base,
size_t xStride,
size_t yStride);
IMF_EXPORT
int ImfOutputWritePixels (ImfOutputFile *out,
int numScanLines);
IMF_EXPORT
int ImfOutputCurrentScanLine (const ImfOutputFile *out);
IMF_EXPORT
const ImfHeader * ImfOutputHeader (const ImfOutputFile *out);
IMF_EXPORT
int ImfOutputChannels (const ImfOutputFile *out);
/*
** Tiled RGBA output file
*/
struct ImfTiledOutputFile;
typedef struct ImfTiledOutputFile ImfTiledOutputFile;
IMF_EXPORT
ImfTiledOutputFile * ImfOpenTiledOutputFile (const char name[],
const ImfHeader *hdr,
int channels,
int xSize, int ySize,
int mode, int rmode);
IMF_EXPORT
int ImfCloseTiledOutputFile (ImfTiledOutputFile *out);
IMF_EXPORT
int ImfTiledOutputSetFrameBuffer (ImfTiledOutputFile *out,
const ImfRgba *base,
size_t xStride,
size_t yStride);
IMF_EXPORT
int ImfTiledOutputWriteTile (ImfTiledOutputFile *out,
int dx, int dy,
int lx, int ly);
IMF_EXPORT
int ImfTiledOutputWriteTiles (ImfTiledOutputFile *out,
int dxMin, int dxMax,
int dyMin, int dyMax,
int lx, int ly);
IMF_EXPORT
const ImfHeader * ImfTiledOutputHeader (const ImfTiledOutputFile *out);
IMF_EXPORT
int ImfTiledOutputChannels (const ImfTiledOutputFile *out);
IMF_EXPORT
int ImfTiledOutputTileXSize (const ImfTiledOutputFile *out);
IMF_EXPORT
int ImfTiledOutputTileYSize (const ImfTiledOutputFile *out);
IMF_EXPORT
int ImfTiledOutputLevelMode (const ImfTiledOutputFile *out);
IMF_EXPORT
int ImfTiledOutputLevelRoundingMode
(const ImfTiledOutputFile *out);
/*
** RGBA input file
*/
struct ImfInputFile;
typedef struct ImfInputFile ImfInputFile;
IMF_EXPORT
ImfInputFile * ImfOpenInputFile (const char name[]);
IMF_EXPORT
int ImfCloseInputFile (ImfInputFile *in);
IMF_EXPORT
int ImfInputSetFrameBuffer (ImfInputFile *in,
ImfRgba *base,
size_t xStride,
size_t yStride);
IMF_EXPORT
int ImfInputReadPixels (ImfInputFile *in,
int scanLine1,
int scanLine2);
IMF_EXPORT
const ImfHeader * ImfInputHeader (const ImfInputFile *in);
IMF_EXPORT
int ImfInputChannels (const ImfInputFile *in);
IMF_EXPORT
const char * ImfInputFileName (const ImfInputFile *in);
/*
** Tiled RGBA input file
*/
struct ImfTiledInputFile;
typedef struct ImfTiledInputFile ImfTiledInputFile;
IMF_EXPORT
ImfTiledInputFile * ImfOpenTiledInputFile (const char name[]);
IMF_EXPORT
int ImfCloseTiledInputFile (ImfTiledInputFile *in);
IMF_EXPORT
int ImfTiledInputSetFrameBuffer (ImfTiledInputFile *in,
ImfRgba *base,
size_t xStride,
size_t yStride);
IMF_EXPORT
int ImfTiledInputReadTile (ImfTiledInputFile *in,
int dx, int dy,
int lx, int ly);
IMF_EXPORT
int ImfTiledInputReadTiles (ImfTiledInputFile *in,
int dxMin, int dxMax,
int dyMin, int dyMax,
int lx, int ly);
IMF_EXPORT
const ImfHeader * ImfTiledInputHeader (const ImfTiledInputFile *in);
IMF_EXPORT
int ImfTiledInputChannels (const ImfTiledInputFile *in);
IMF_EXPORT
const char * ImfTiledInputFileName (const ImfTiledInputFile *in);
IMF_EXPORT
int ImfTiledInputTileXSize (const ImfTiledInputFile *in);
IMF_EXPORT
int ImfTiledInputTileYSize (const ImfTiledInputFile *in);
IMF_EXPORT
int ImfTiledInputLevelMode (const ImfTiledInputFile *in);
IMF_EXPORT
int ImfTiledInputLevelRoundingMode
(const ImfTiledInputFile *in);
/*
** Lookup tables
*/
struct ImfLut;
typedef struct ImfLut ImfLut;
IMF_EXPORT
ImfLut * ImfNewRound12logLut (int channels);
IMF_EXPORT
ImfLut * ImfNewRoundNBitLut (unsigned int n, int channels);
IMF_EXPORT
void ImfDeleteLut (ImfLut *lut);
IMF_EXPORT
void ImfApplyLut (ImfLut *lut,
ImfRgba *data,
int nData,
int stride);
/*
** Most recent error message
*/
IMF_EXPORT
const char * ImfErrorMessage (void);
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif
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