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Diffstat (limited to 'source/blender/imbuf/intern/cineon/logImageCore.h')
| -rw-r--r-- | source/blender/imbuf/intern/cineon/logImageCore.h | 258 |
1 files changed, 176 insertions, 82 deletions
diff --git a/source/blender/imbuf/intern/cineon/logImageCore.h b/source/blender/imbuf/intern/cineon/logImageCore.h index 7d88c10c2d6..c1f4d2eae04 100644 --- a/source/blender/imbuf/intern/cineon/logImageCore.h +++ b/source/blender/imbuf/intern/cineon/logImageCore.h @@ -1,123 +1,217 @@ /* - * Cineon image file format library definitions. - * Cineon and DPX common structures. + * Cineon image file format library definitions. + * Cineon and DPX common structures. * - * This header file contains private details. - * User code should generally use cineonlib.h and dpxlib.h only. - * Hmm. I thought the two formats would have more in common! + * This header file contains private details. + * User code should generally use cineonlib.h and dpxlib.h only. + * Hmm. I thought the two formats would have more in common! * - * Copyright 1999,2000,2001 David Hodson <hodsond@acm.org> + * Copyright 1999,2000,2001 David Hodson <hodsond@acm.org> * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the Free - * Software Foundation; either version 2 of the License, or (at your option) - * any later version. + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY - * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * for more details. * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * Contributor(s): Julien Enche. * */ -#ifndef __LOGIMAGECORE_H__ -#define __LOGIMAGECORE_H__ - /** \file blender/imbuf/intern/cineon/logImageCore.h * \ingroup imbcineon */ + +#ifndef __LOG_IMAGE_CORE_H__ +#define __LOG_IMAGE_CORE_H__ + #include <stdio.h> -#include "logImageLib.h" +#include <stdint.h> #ifdef __cplusplus extern "C" { #endif -#include "BLO_sys_types.h" // for intptr_t support - -#ifdef _MSC_VER -#undef ntohl -#undef htonl -#endif +/* + * Image structure + */ -typedef int (GetRowFn)(LogImageFile* logImage, unsigned short* row, int lineNum); -typedef int (SetRowFn)(LogImageFile* logImage, const unsigned short* row, int lineNum); -typedef void (CloseFn)(LogImageFile* logImage); +/* There are some differences between DPX and Cineon so we need to know from what type of file the datas come from */ +enum format { + format_DPX, + format_Cineon +}; -struct _Log_Image_File_t_ +typedef struct LogImageElement +{ + int depth; + int bitsPerSample; + int dataOffset; + int packing; + int transfer; + int descriptor; + unsigned int refLowData; + unsigned int refHighData; + float refLowQuantity; + float refHighQuantity; + float maxValue; /* = 2^bitsPerSample - 1 (used internally, doesn't come from the file header) */ +} LogImageElement; + +typedef struct LogImageFile { /* specified in header */ int width; int height; + int numElements; int depth; - int bitsPerPixel; - int imageOffset; - - /* file buffer, measured in longwords (4 byte) */ - int lineBufferLength; - unsigned int* lineBuffer; + LogImageElement element[8]; - /* pixel buffer, holds 10 bit pixel values */ - unsigned short* pixelBuffer; - int pixelBufferUsed; + /* used for log <-> lin conversion */ + float referenceBlack; + float referenceWhite; + float gamma; - /* io stuff */ + /* io stuff */ FILE* file; - int reading; - int fileYPos; + unsigned char* memBuffer; + uintptr_t memBufferSize; + unsigned char* memCursor; + + /* is the file LSB or MSB ? */ + int isMSB; + + /* DPX or Cineon ? */ + int srcFormat; +} LogImageFile; + + +/* The SMPTE defines this code: + * 0 - User-defined + * 1 - Printing density + * 2 - Linear + * 3 - Logarithmic + * 4 - Unspecified video + * 5 - SMPTE 240M + * 6 - CCIR 709-1 + * 7 - CCIR 601-2 system B or G + * 8 - CCIR 601-2 system M + * 9 - NTSC composite video + * 10 - PAL composite video + * 11 - Z linear + * 12 - homogeneous + * + * Note that transfer_characteristics is U8, don't need + * check the byte order. + */ + +enum transfer { + transfer_UserDefined, + transfer_PrintingDensity, + transfer_Linear, + transfer_Logarithmic, + transfer_Unspecified, + transfer_Smpte240M, + transfer_Ccir7091, + transfer_Ccir6012BG, + transfer_Ccir6012M, + transfer_NTSC, + transfer_PAL, + transfer_ZLinear, + transfer_Homogeneous +}; - /* byte conversion stuff */ - LogImageByteConversionParameters params; -#if 0 - float gamma; - int blackPoint; - int whitePoint; -#endif - unsigned char lut10[1024]; - unsigned short lut8[256]; - - unsigned short lut10_16[1024]; - unsigned short lut16_16[65536]; - - /* pixel access functions */ - GetRowFn* getRow; - SetRowFn* setRow; - CloseFn* close; - - unsigned char *membuffer; - uintptr_t membuffersize; - unsigned char *memcursor; +/* The SMPTE defines this code: + * 0 - User-defined + * 1 - Red + * 2 - Green + * 3 - Blue + * 4 - Alpha + * 6 - Luminance + * 7 - Chrominance + * 8 - Depth + * 9 - Composite video + * 50 - RGB + * 51 - RGBA + * 52 - ABGR + * 100 - CbYCrY + * 101 - CbYACrYA + * 102 - CbYCr + * 103 - CbYCrA + * 150 - User-defined 2-component element + * 151 - User-defined 3-component element + * 152 - User-defined 4-component element + * 153 - User-defined 5-component element + * 154 - User-defined 6-component element + * 155 - User-defined 7-component element + * 156 - User-defined 8-component element + */ + +enum descriptor { + descriptor_UserDefined, + descriptor_Red, + descriptor_Green, + descriptor_Blue, + descriptor_Alpha, + descriptor_Luminance = 6, /* don't ask me why there's no 5 */ + descriptor_Chrominance, + descriptor_Depth, + descriptor_Composite, + descriptor_RGB = 50, + descriptor_RGBA, + descriptor_ABGR, + descriptor_CbYCrY = 100, + descriptor_CbYACrYA, + descriptor_CbYCr, + descriptor_CbYCrA, + descriptor_UserDefined2Elt = 150, + descriptor_UserDefined3Elt, + descriptor_UserDefined4Elt, + descriptor_UserDefined5Elt, + descriptor_UserDefined6Elt, + descriptor_UserDefined7Elt, + descriptor_UserDefined8Elt, + /* following descriptors are for internal use only */ + descriptor_YA }; -void setupLut(LogImageFile*); -void setupLut16(LogImageFile*); +/* int functions return 0 for OK */ -int pixelsToLongs(int numPixels); +void logImageSetVerbose(int verbosity); +int logImageIsDpx(const void* buffer); +int logImageIsCineon(const void* buffer); +LogImageFile* logImageOpenFromMemory(const unsigned char *buffer, unsigned int size); +LogImageFile* logImageOpenFromFile(const char *filename, int cineon); +void logImageGetSize(LogImageFile *logImage, int *width, int *height, int *depth); +LogImageFile* logImageCreate(const char *filename, int cineon, int width, int height, int bitsPerSample, int isLogarithmic, int hasAlpha, int referenceWhite, int referenceBlack, float gamma, const char* creator); +void logImageClose(LogImageFile* logImage); -/* typedefs used in original docs */ -/* note size assumptions! */ +/* Data handling */ +unsigned int getRowLength(int width, LogImageElement logElement); +int logImageSetDataRGBA(LogImageFile *logImage,float *data, int dataIsLinearRGB); +int logImageGetDataRGBA(LogImageFile *logImage, float* data, int dataIsLinearRGB); -typedef unsigned int U32; -typedef unsigned short U16; -typedef unsigned char U8; -typedef signed int S32; -typedef float R32; -typedef char ASCII; +/* Endianness conversion */ +inline unsigned short swap_ushort(unsigned short x, int swap); +inline unsigned int swap_uint(unsigned int x, int swap); +inline float swap_float(float x, int swap); + +/* Other */ +inline float clamp_float(float x, float low, float high); +inline unsigned int clamp_uint(unsigned int x, unsigned int low, unsigned int high); +inline unsigned int float_uint(float value, unsigned int max); -R32 htonf(R32 f); -R32 ntohf(R32 f); -R32 undefined(void); -U16 reverseU16(U16 value); -U32 reverseU32(U32 value); -R32 reverseR32(R32 value); #ifdef __cplusplus } #endif -#endif /* __LOGIMAGECORE_H__ */ +#endif |