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Gimp/plug-ins/file-psd/psd.h
Jacob Boerema 87e071300a plug-ins: fix incorrect psd dropshadow offsets 
Some dropshadow offsets were incorrect when loading PSD's.
Photoshop has a global lighting angle that can override the angle
set for a dropshadow and we did not account for that.
This also showed that our computation of the X and Y values needed
to be adjusted.
Besides that I noticed a weird offset with angle values > 0xFF00 that
happened because we interpreted angle as unsigned when it should be
signed.

This adds support for loading the Global Lighting Angle, and using
that value in the legacy dropshadow effect.
We read the angle by using GUINT16_TO_BE because it's a signed int;
that also removes the need to check for 0xFF00.
Next we adjust the way we compute X and Y.
2026-01-12 09:14:16 -05:00

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GIMP PSD Plug-in
* Copyright 2007 by John Marshall
*
* 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 3 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef __PSD_H__
#define __PSD_H__
/* Set to the level of debugging output you want, 0 for none.
* Setting higher than 2 will result in a very large amount of debug
* output being produced. */
#define PSD_DEBUG 3
#define IFDBG(level) if (PSD_DEBUG >= level)
/* Set to FALSE to suppress pop-up warnings about lossy blend mode conversions */
#define CONVERSION_WARNINGS FALSE
#define LOAD_PROC "file-psd-load"
#define LOAD_MERGED_PROC "file-psd-load-merged"
#define LOAD_THUMB_PROC "file-psd-load-thumb"
#define EXPORT_PROC "file-psd-export"
#define EXPORT_PSB_PROC "file-psb-export"
#define LOAD_METADATA_PROC "file-psd-load-metadata"
#define PLUG_IN_BINARY "file-psd"
#define PLUG_IN_ROLE "gimp-file-psd"
#define GIMP_PARASITE_COMMENT "gimp-comment"
#define PSD_PARASITE_DUOTONE_DATA "psd-duotone-data"
#define PSD_PARASITE_CLIPPING_PATH "psd-clipping-path"
#define PSD_PARASITE_PATH_FLATNESS "psd-path-flatness"
/* Copied from app/base/gimpimage-quick-mask.h - internal identifier for quick mask channel */
#define GIMP_IMAGE_QUICK_MASK_NAME "Qmask"
#define MAX_RAW_SIZE 0 /* FIXME all images are raw if 0 */
/* PSD spec defines */
/* Although the spec still says 56 there is a test image with more so let's go a little higher to 99 */
#define MAX_CHANNELS 99 /* Photoshop CS to CS3 support 56 channels */
/* PSD spec constants */
/* Layer resource IDs */
/* Adjustment layer IDs */
#define PSD_LADJ_LEVEL "levl" /* Adjustment layer - levels (PS4) */
#define PSD_LADJ_CURVE "curv" /* Adjustment layer - curves (PS4) */
#define PSD_LADJ_BRIGHTNESS "brit" /* Adjustment layer - brightness/contrast (PS4) */
#define PSD_LADJ_BALANCE "blnc" /* Adjustment layer - color balance (PS4) */
#define PSD_LADJ_BLACK_WHITE "blwh" /* Adjustment layer - black & white (PS10) */
#define PSD_LADJ_HUE "hue " /* Adjustment layer - old hue/saturation (PS4) */
#define PSD_LADJ_HUE2 "hue2" /* Adjustment layer - hue/saturation (PS5) */
#define PSD_LADJ_SELECTIVE "selc" /* Adjustment layer - selective color (PS4) */
#define PSD_LADJ_MIXER "mixr" /* Adjustment layer - channel mixer (PS9) */
#define PSD_LADJ_GRAD_MAP "grdm" /* Adjustment layer - gradient map (PS9) */
#define PSD_LADJ_PHOTO_FILT "phfl" /* Adjustment layer - photo filter (PS9) */
#define PSD_LADJ_EXPOSURE "expA" /* Adjustment layer - exposure (PS10) */
#define PSD_LADJ_INVERT "nvrt" /* Adjustment layer - invert (PS4) */
#define PSD_LADJ_THRESHOLD "thrs" /* Adjustment layer - threshold (PS4) */
#define PSD_LADJ_POSTERIZE "post" /* Adjustment layer - posterize (PS4) */
#define PSD_LADJ_VIBRANCE "vibA" /* Adjustment layer - vibrance (PS10) */
#define PSD_LADJ_COLOR_LOOKUP "clrL" /* Adjustment layer - color lookup (PS13) */
/* Fill Layer IDs */
#define PSD_LFIL_SOLID "SoCo" /* Solid color sheet setting (PS6) */
#define PSD_LFIL_PATTERN "PtFl" /* Pattern fill setting (PS6) */
#define PSD_LFIL_GRADIENT "GdFl" /* Gradient fill setting (PS6) */
/* Effects Layer IDs */
#define PSD_LFX_FX "lrFX" /* Effects layer info (PS5) */
#define PSD_LFX_FX2 "lfx2" /* Object based effects layer info (PS6) */
/* Type Tool Layers */
#define PSD_LTYP_TYPE "tySh" /* Type tool layer (PS5) */
#define PSD_LTYP_TYPE2 "TySh" /* Type tool object setting (PS6) */
/* Layer Properties */
#define PSD_LPRP_UNICODE "luni" /* Unicode layer name (PS5) */
#define PSD_LPRP_SOURCE "lnsr" /* Layer name source setting (PS6) */
#define PSD_LPRP_ID "lyid" /* Layer ID (PS5) */
#define PSD_LPRP_BLEND_CLIP "clbl" /* Blend clipping elements (PS6) */
#define PSD_LPRP_BLEND_INT "infx" /* Blend interior elements (PS6) */
#define PSD_LPRP_KNOCKOUT "knko" /* Knockout setting (PS6) */
#define PSD_LPRP_PROTECT "lspf" /* Protected setting (PS6) */
#define PSD_LPRP_COLOR "lclr" /* Sheet color setting (PS6) */
#define PSD_LPRP_REF_POINT "fxrp" /* Reference point (PS6) */
#define PSD_LPRP_VERSION "lyvr" /* Layer version (PS7) */
/* Vector mask */
#define PSD_LMSK_VMASK "vmsk" /* Vector mask setting (PS6) */
/* Parasites */
#define PSD_LPAR_ANNOTATE "Anno" /* Annotation (PS6) */
/* Other */
#define PSD_LOTH_SECTION "lsct" /* Section divider setting - Layer groups (PS6) */
#define PSD_LOTH_SECTION2 "lsdk" /* Nested section divider setting - Layer groups (CS5) */
#define PSD_LOTH_PATTERN "Patt" /* Patterns (PS6) */
#define PSD_LOTH_PATTERN_2 "Pat2" /* Patterns 2nd key (PS6) */
#define PSD_LOTH_PATTERN_3 "Pat3" /* Patterns 3rd key (PS6) */
#define PSD_LOTH_GRADIENT "grdm" /* Gradient settings (PS6) */
#define PSD_LOTH_RESTRICT "brst" /* Channel blending restriction setting (PS6) */
#define PSD_LOTH_FOREIGN_FX "ffxi" /* Foreign effect ID (PS6) */
#define PSD_LOTH_PATT_DATA "shpa" /* Pattern data (PS6) */
#define PSD_LOTH_META_DATA "shmd" /* Meta data setting (PS6) */
#define PSD_LOTH_LAYER_DATA "layr" /* Layer data (PS6) */
#define PSD_LOTH_CONTENT_GEN "CgEd" /* Content generator extra data (PS12) */
#define PSD_LOTH_TEXT_ENGINE "Txt2" /* Text engine data (PS10) */
#define PSD_LOTH_PATH_NAME "pths" /* Unicode path name (PS13) */
#define PSD_LOTH_ANIMATION_FX "anFX" /* Animation effects (PS13) */
#define PSD_LOTH_FILTER_MASK "FMsk" /* Filter mask (PS10) */
#define PSD_LOTH_VECTOR_STROKE "vscg" /* Vector stroke data (PS13) */
#define PSD_LOTH_ALIGN_RENDER "sn2P" /* Aligned rendering flag (?) */
#define PSD_LOTH_USER_MASK "LMsk" /* User mask (?) */
/* Effects layer resource IDs */
#define PSD_LFX_COMMON "cmnS" /* Effects layer - common state (PS5) */
#define PSD_LFX_DROP_SDW "dsdw" /* Effects layer - drop shadow (PS5) */
#define PSD_LFX_INNER_SDW "isdw" /* Effects layer - inner shadow (PS5) */
#define PSD_LFX_OUTER_GLW "oglw" /* Effects layer - outer glow (PS5) */
#define PSD_LFX_INNER_GLW "iglw" /* Effects layer - inner glow (PS5) */
#define PSD_LFX_BEVEL "bevl" /* Effects layer - bevel (PS5) */
/* Placed Layer */
#define PSD_LPL_PLACE_LAYER "PlLd" /* Placed layer (?) (based on PSD files, not specification) */
#define PSD_LPL_PLACE_LAYER_NEW "SoLd" /* Placed layer (PS10) */
#define PSD_SMART_OBJECT_LAYER "SoLE" /* Smart Object Layer (CC2015) */
/* Linked Layer */
#define PSD_LLL_LINKED_LAYER "lnkD" /* Linked layer (?) */
#define PSD_LLL_LINKED_LAYER_2 "lnk2" /* Linked layer 2nd key */
#define PSD_LLL_LINKED_LAYER_3 "lnk3" /* Linked layer 3rd key */
#define PSD_LLL_LINKED_LAYER_EXT "lnkE" /* Linked layer external */
/* Merged Transparency */
#define PSD_LMT_MERGE_TRANS "Mtrn" /* Merged transparency save flag (?) */
#define PSD_LMT_MERGE_TRANS_16 "Mt16" /* Merged transparency save flag 2 */
#define PSD_LMT_MERGE_TRANS_32 "Mt32" /* Merged transparency save flag 3 */
/* Filter Effects */
#define PSD_LFFX_FILTER_FX "FXid" /* Filter effects (?) */
#define PSD_LFFX_FILTER_FX_2 "FEid" /* Filter effects 2 */
/* PSD spec enums */
/* Image color modes */
typedef enum {
PSD_BITMAP = 0, /* Bitmap image */
PSD_GRAYSCALE = 1, /* Greyscale image */
PSD_INDEXED = 2, /* Indexed image */
PSD_RGB = 3, /* RGB image */
PSD_CMYK = 4, /* CMYK */
PSD_MULTICHANNEL = 7, /* Multichannel image*/
PSD_DUOTONE = 8, /* Duotone image*/
PSD_LAB = 9 /* L*a*b image */
} PSDColorMode;
/* Image color spaces */
typedef enum {
PSD_CS_RGB = 0, /* RGB */
PSD_CS_HSB = 1, /* Hue, Saturation, Brightness */
PSD_CS_CMYK = 2, /* CMYK */
PSD_CS_PANTONE = 3, /* Pantone matching system (Lab)*/
PSD_CS_FOCOLTONE = 4, /* Focoltone color system (CMYK)*/
PSD_CS_TRUMATCH = 5, /* Trumatch color (CMYK)*/
PSD_CS_TOYO = 6, /* Toyo 88 colorfinder 1050 (Lab)*/
PSD_CS_LAB = 7, /* L*a*b*/
PSD_CS_GRAYSCALE = 8, /* Grey scale */
PSD_CS_HKS = 10, /* HKS colors (CMYK)*/
PSD_CS_DIC = 11, /* DIC color guide (Lab)*/
PSD_CS_ANPA = 3000, /* Anpa color (Lab)*/
} PSDColorSpace;
/* Image Resource IDs */
typedef enum {
PSD_PS2_IMAGE_INFO = 1000, /* 0x03e8 - Obsolete - ps 2.0 image info */
PSD_MAC_PRINT_INFO = 1001, /* 0x03e9 - Optional - Mac print manager print info record */
PSD_PS2_COLOR_TAB = 1003, /* 0x03eb - Obsolete - ps 2.0 indexed color table */
PSD_RESN_INFO = 1005, /* 0x03ed - ResolutionInfo structure */
PSD_ALPHA_NAMES = 1006, /* 0x03ee - Alpha channel names */
PSD_DISPLAY_INFO = 1007, /* 0x03ef - Superceded by PSD_DISPLAY_INFO_NEW for ps CS3 and higher - DisplayInfo structure */
PSD_CAPTION = 1008, /* 0x03f0 - Optional - Caption string */
PSD_BORDER_INFO = 1009, /* 0x03f1 - Border info */
PSD_BACKGROUND_COL = 1010, /* 0x03f2 - Background color */
PSD_PRINT_FLAGS = 1011, /* 0x03f3 - Print flags */
PSD_GREY_HALFTONE = 1012, /* 0x03f4 - Greyscale and multichannel halftoning info */
PSD_COLOR_HALFTONE = 1013, /* 0x03f5 - Color halftoning info */
PSD_DUOTONE_HALFTONE = 1014, /* 0x03f6 - Duotone halftoning info */
PSD_GREY_XFER = 1015, /* 0x03f7 - Greyscale and multichannel transfer functions */
PSD_COLOR_XFER = 1016, /* 0x03f8 - Color transfer functions */
PSD_DUOTONE_XFER = 1017, /* 0x03f9 - Duotone transfer functions */
PSD_DUOTONE_INFO = 1018, /* 0x03fa - Duotone image information */
PSD_EFFECTIVE_BW = 1019, /* 0x03fb - Effective black & white values for dot range */
PSD_OBSOLETE_01 = 1020, /* 0x03fc - Obsolete */
PSD_EPS_OPT = 1021, /* 0x03fd - EPS options */
PSD_QUICK_MASK = 1022, /* 0x03fe - Quick mask info */
PSD_OBSOLETE_02 = 1023, /* 0x03ff - Obsolete */
PSD_LAYER_STATE = 1024, /* 0x0400 - Layer state info */
PSD_WORKING_PATH = 1025, /* 0x0401 - Working path (not saved) */
PSD_LAYER_GROUP = 1026, /* 0x0402 - Layers group info */
PSD_OBSOLETE_03 = 1027, /* 0x0403 - Obsolete */
PSD_IPTC_NAA_DATA = 1028, /* 0x0404 - IPTC-NAA record (IMV4.pdf) */
PSD_IMAGE_MODE_RAW = 1029, /* 0x0405 - Image mode for raw format files */
PSD_JPEG_QUAL = 1030, /* 0x0406 - JPEG quality */
PSD_GRID_GUIDE = 1032, /* 0x0408 - Grid & guide info */
PSD_THUMB_RES = 1033, /* 0x0409 - Thumbnail resource */
PSD_COPYRIGHT_FLG = 1034, /* 0x040a - Copyright flag */
PSD_URL = 1035, /* 0x040b - URL string */
PSD_THUMB_RES2 = 1036, /* 0x040c - Thumbnail resource */
PSD_GLOBAL_ANGLE = 1037, /* 0x040d - Superceded by PSD_NEW_COLOR_SAMPLER for ps CS3 and higher - Global angle */
PSD_COLOR_SAMPLER = 1038, /* 0x040e - Superceded by PSD_NEW_COLOR_SAMPLER for ps CS3 and higher - Color samplers resource */
PSD_ICC_PROFILE = 1039, /* 0x040f - ICC Profile */
PSD_WATERMARK = 1040, /* 0x0410 - Watermark */
PSD_ICC_UNTAGGED = 1041, /* 0x0411 - Do not use ICC profile flag */
PSD_EFFECTS_VISIBLE = 1042, /* 0x0412 - Show / hide all effects layers */
PSD_SPOT_HALFTONE = 1043, /* 0x0413 - Spot halftone */
PSD_DOC_IDS = 1044, /* 0x0414 - Document specific IDs */
PSD_ALPHA_NAMES_UNI = 1045, /* 0x0415 - Unicode alpha names */
PSD_IDX_COL_TAB_CNT = 1046, /* 0x0416 - Indexed color table count */
PSD_IDX_TRANSPARENT = 1047, /* 0x0417 - Index of transparent color (if any) */
PSD_GLOBAL_ALT = 1049, /* 0x0419 - Global altitude */
PSD_SLICES = 1050, /* 0x041a - Slices */
PSD_WORKFLOW_URL_UNI = 1051, /* 0x041b - Workflow URL - Unicode string */
PSD_JUMP_TO_XPEP = 1052, /* 0x041c - Jump to XPEP (?) */
PSD_ALPHA_ID = 1053, /* 0x041d - Alpha IDs */
PSD_URL_LIST_UNI = 1054, /* 0x041e - URL list - unicode */
PSD_VERSION_INFO = 1057, /* 0x0421 - Version info */
PSD_EXIF_DATA = 1058, /* 0x0422 - Exif data block 1 */
PSD_EXIF_DATA_3 = 1059, /* 0X0423 - Exif data block 3 (?) */
PSD_XMP_DATA = 1060, /* 0x0424 - XMP data block */
PSD_CAPTION_DIGEST = 1061, /* 0x0425 - Caption digest */
PSD_PRINT_SCALE = 1062, /* 0x0426 - Print scale */
PSD_PIXEL_AR = 1064, /* 0x0428 - Pixel aspect ratio */
PSD_LAYER_COMPS = 1065, /* 0x0429 - Layer comps */
PSD_ALT_DUOTONE_COLOR = 1066, /* 0x042A - Alternative Duotone colors */
PSD_ALT_SPOT_COLOR = 1067, /* 0x042B - Alternative Spot colors */
PSD_LAYER_SELECT_ID = 1069, /* 0x042D - Layer selection ID */
PSD_HDR_TONING_INFO = 1070, /* 0x042E - HDR toning information */
PSD_PRINT_INFO_SCALE = 1071, /* 0x042F - Print scale */
PSD_LAYER_GROUP_E_ID = 1072, /* 0x0430 - Layer group(s) enabled ID */
PSD_COLOR_SAMPLER_NEW = 1073, /* 0x0431 - Color sampler resource for ps CS3 and higher PSD files */
PSD_MEASURE_SCALE = 1074, /* 0x0432 - Measurement scale */
PSD_TIMELINE_INFO = 1075, /* 0x0433 - Timeline information */
PSD_SHEET_DISCLOSE = 1076, /* 0x0434 - Sheet discloser */
PSD_DISPLAY_INFO_NEW = 1077, /* 0x0435 - DisplayInfo structure for ps CS3 and higher PSD files */
PSD_ONION_SKINS = 1078, /* 0x0436 - Onion skins */
PSD_COUNT_INFO = 1080, /* 0x0438 - Count information*/
PSD_PRINT_INFO = 1082, /* 0x043A - Print information added in ps CS5*/
PSD_PRINT_STYLE = 1083, /* 0x043B - Print style */
PSD_MAC_NSPRINTINFO = 1084, /* 0x043C - Mac NSPrintInfo*/
PSD_WIN_DEVMODE = 1085, /* 0x043D - Windows DEVMODE */
PSD_AUTO_SAVE_PATH = 1086, /* 0x043E - Auto save file path */
PSD_AUTO_SAVE_FORMAT = 1087, /* 0x043F - Auto save format */
PSD_PATH_INFO_FIRST = 2000, /* 0x07d0 - First path info block */
PSD_PATH_INFO_LAST = 2998, /* 0x0bb6 - Last path info block */
PSD_CLIPPING_PATH = 2999, /* 0x0bb7 - Name of clipping path */
PSD_PLUGIN_R_FIRST = 4000, /* 0x0FA0 - First plugin resource */
PSD_PLUGIN_R_LAST = 4999, /* 0x1387 - Last plugin resource */
PSD_IMAGEREADY_VARS = 7000, /* 0x1B58 - Imageready variables */
PSD_IMAGEREADY_DATA = 7001, /* 0x1B59 - Imageready data sets */
PSD_LIGHTROOM_WORK = 8000, /* 0x1F40 - Lightroom workflow */
PSD_PRINT_FLAGS_2 = 10000 /* 0x2710 - Print flags */
} PSDImageResID;
/* Display resolution units */
typedef enum {
PSD_RES_INCH = 1, /* Pixels / inch */
PSD_RES_CM = 2, /* Pixels / cm */
} PSDDisplayResUnit;
/* Width and height units */
typedef enum {
PSD_UNIT_INCH = 1, /* inches */
PSD_UNIT_CM = 2, /* cm */
PSD_UNIT_POINT = 3, /* points (72 points = 1 inch) */
PSD_UNIT_PICA = 4, /* pica ( 6 pica = 1 inch) */
PSD_UNIT_COLUMN = 5, /* columns ( column defined in ps prefs, default = 2.5 inches) */
} PSDUnit;
/* Thumbnail image data encoding */
typedef enum {
kRawRGB = 0, /* RAW data format (never used?) */
kJpegRGB = 1 /* JPEG compression */
} PSDThumbFormat;
/* Path record types */
typedef enum {
PSD_PATH_CL_LEN = 0, /* Closed sub-path length record */
PSD_PATH_CL_LNK = 1, /* Closed sub-path Bezier knot, linked */
PSD_PATH_CL_UNLNK = 2, /* Closed sub-path Bezier knot, unlinked */
PSD_PATH_OP_LEN = 3, /* Open sub-path length record */
PSD_PATH_OP_LNK = 4, /* Open sub-path Bezier knot, linked */
PSD_PATH_OP_UNLNK = 5, /* Open sub-path Bezier knot, unlinked */
PSD_PATH_FILL_RULE = 6, /* Path fill rule record */
PSD_PATH_CLIPBOARD = 7, /* Path clipboard record */
PSD_PATH_FILL_INIT = 8 /* Path initial fill record */
} PSDpathtype;
/* Channel ID */
typedef enum {
PSD_CHANNEL_EXTRA_MASK= -3, /* User supplied extra layer mask */
PSD_CHANNEL_MASK = -2, /* User supplied layer mask */
PSD_CHANNEL_ALPHA = -1, /* Transparency mask */
PSD_CHANNEL_RED = 0, /* Red channel data */
PSD_CHANNEL_GREEN = 1, /* Green channel data */
PSD_CHANNEL_BLUE = 2 /* Blue channel data */
} PSDChannelID;
/* Clipping */
typedef enum {
PSD_CLIPPING_BASE = 0, /* Base clipping */
PSD_CLIPPING_NON_BASE = 1 /* Non-base clipping */
} PSDClipping;
/* Image compression mode */
typedef enum {
PSD_COMP_RAW = 0, /* Raw data */
PSD_COMP_RLE, /* RLE compressed */
PSD_COMP_ZIP, /* ZIP without prediction */
PSD_COMP_ZIP_PRED /* ZIP with prediction */
} PSDCompressMode;
/* Vertical - horizontal selection */
typedef enum {
PSD_VERTICAL = 0, /* Vertical */
PSD_HORIZONTAL = 1 /* Horizontal */
} VHSelect;
/* PSD spec data structures */
/* PSD field types */
typedef gint32 Fixed; /* Represents a fixed point implied decimal */
/* Apple color space data structures */
/* RGB Color Value
A color value expressed in the RGB color space is composed of red, green,
and blue component values. Each color component is expressed as a numeric
value within the range of 0 to 65535.
*/
typedef struct
{
guint16 red;
guint16 green;
guint16 blue;
} CMRGBColor;
/* HSV Color Value
A color value expressed in the HSV color space is composed of hue,
saturation, and value component values. Each color component is
expressed as a numeric value within the range of 0 to 65535 inclusive.
The hue value represents a fraction of a circle in which red is
positioned at 0.
*/
typedef struct
{
guint16 hue;
guint16 saturation;
guint16 value;
} CMHSVColor;
/* CMYK Color Value
A color value expressed in the CMYK color space is composed of cyan, magenta,
yellow, and black component values. Each color component is expressed as a
numeric value within the range of 0 to 65535 inclusive, with 0 representing
100% ink (e.g. pure cyan = 0, 65535, 65535, 65535).
*/
typedef struct
{
guint16 cyan;
guint16 magenta;
guint16 yellow;
guint16 black;
} CMCMYKColor;
/* L*a*b* Color Value
The first three values in the color data are, respectively, the colors
lightness, a chrominance, and b chrominance components. The lightness
component is a 16bit value ranging from 0 to 10000. The chrominance
components are each 16bit values ranging from 12800 to 12700. Gray
values are represented by chrominance components of 0 (e.g. pure white
is defined as 10000, 0, 0).
*/
typedef struct
{
guint16 L;
gint16 a;
gint16 b;
} CMLabColor;
/* Gray Color Value
A color value expressed in the Gray color space is composed of a single component,
gray, represented as a numeric value within the range of 0 to 10000.
*/
typedef struct
{
guint16 gray;
} CMGrayColor ;
/* The color union is defined by the CMColor type definition.
*/
typedef union
{
CMRGBColor rgb;
CMHSVColor hsv;
CMLabColor Lab;
CMCMYKColor cmyk;
CMGrayColor gray;
} CMColor;
/* GIMP layer mode info */
typedef struct
{
GimpLayerMode mode;
GimpLayerColorSpace blend_space;
GimpLayerColorSpace composite_space;
GimpLayerCompositeMode composite_mode;
} LayerModeInfo;
/* Image resolution data */
typedef struct {
Fixed hRes; /* Horizontal resolution pixels/inch */
gint16 hResUnit; /* Horizontal display resolution unit (1=pixels per inch, 2=pixels per cm) */
gint16 widthUnit; /* Display width unit (1=inches; 2=cm; 3=points; 4=picas; 5=columns) */
Fixed vRes; /* Vertical resolution pixels/inch */
gint16 vResUnit; /* Vertical display resolution unit */
gint16 heightUnit; /* Display height unit */
} ResolutionInfo;
/* Grid & guide header */
typedef struct {
guint32 fVersion; /* Version - always 1 for PS */
guint32 fGridCycleV; /* Vertical grid size */
guint32 fGridCycleH; /* Horizontal grid size */
guint32 fGuideCount; /* Number of guides */
} GuideHeader;
/* Guide resource block */
typedef struct {
guint32 fLocation; /* Guide position in Pixels * 100 */
gchar fDirection; /* Guide orientation */
} GuideResource;
/* Thumbnail data */
typedef struct {
gint32 format; /* Thumbnail image data format (1 = JPEG) */
gint32 width; /* Thumbnail width in pixels */
gint32 height; /* Thumbnail height in pixels */
gint32 widthbytes; /* Padded row bytes ((width * bitspixel + 31) / 32 * 4) */
gint32 size; /* Total size (widthbytes * height * planes */
gint32 compressedsize; /* Size after compression for consistency */
gint16 bitspixel; /* Bits per pixel (always 24) */
gint16 planes; /* Number of planes (always 1) */
} ThumbnailInfo;
/* Channel display info data for Adobe Photoshop CS2 and lower */
typedef struct {
gint16 colorSpace; /* Color space from PSDColorSpace */
guint16 color[4]; /* 4 * 16 bit color components */
gint16 opacity; /* Opacity 0 to 100 */
gchar kind; /* Selected = 0, Protected = 1 */
gchar padding; /* Padding */
} DisplayInfo;
/* Channel display info data for Adobe Photoshop CS3 and higher to support floating point colors */
typedef struct {
gint16 colorSpace; /* Color space from PSDColorSpace */
guint16 color[4]; /* 4 * 16 bit color components */
gint16 opacity; /* Opacity 0 to 100 */
gchar mode; /* Alpha = 0, Inverted alpha = 1, Spot = 2 */
} DisplayInfoNew;
/* PSD Channel length info data structure */
typedef struct
{
gint16 channel_id; /* Channel ID */
guint64 data_len; /* Layer left */
} ChannelLengthInfo;
/* PSD Layer flags */
typedef struct
{
gboolean trans_prot; /* Transparency protected */
gboolean visible; /* Visible */
gboolean obsolete; /* Obsolete */
gboolean bit4; /* Bit 4 in use */
gboolean irrelevant; /* Pixel data irrelevant to image appearance */
} LayerFlags;
/* PSD Layer mask flags */
typedef struct
{
gboolean relative_pos; /* Mask position recorded relative to layer */
gboolean disabled; /* Mask disabled */
gboolean invert; /* Invert mask on blending (obsolete according to online specs) */
gboolean rendered; /* User mask actually came from rendering other data */
gboolean params_present; /* User and/or vector masks have parameters applied to them */
} MaskFlags;
/* PSD Slices */
typedef struct
{
gint32 id; /* ID */
gint32 groupid; /* Group ID */
gint32 origin; /* Origin */
gint32 associatedid; /* Associated Layer ID */
gchar *name; /* Name */
gint32 type; /* Type */
gint32 left; /* Position coordinates */
gint32 top;
gint32 right;
gint32 bottom;
gchar *url; /* URL */
gchar *target; /* Target */
gchar *message; /* Message */
gchar *alttag; /* Alt Tag */
gchar html; /* Boolean for if cell text is HTML */
gchar *celltext; /* Cell text */
gint32 horizontal; /* Horizontal alignment */
gint32 vertical; /* Vertical alignment */
gchar alpha; /* Alpha */
gchar red; /* Red */
gchar green; /* Green */
gchar blue; /* Blue */
} PSDSlice;
/* PSD Layer mask data (length 20) */
typedef struct
{
gint32 top; /* Layer top */
gint32 left; /* Layer left */
gint32 bottom; /* Layer bottom */
gint32 right; /* Layer right */
guchar def_color; /* Default background color */
guchar flags; /* Layer flags */
guchar mask_params; /* Mask parameters. Only present if bit 4 of flags is set. */
guchar extra_flags; /* Real layer flags */
guchar extra_def_color; /* Real user mask background */
MaskFlags mask_flags; /* Flags */
} LayerMask;
/* PSD Layer mask data (length 36) */
typedef struct
{
gint32 top; /* Layer top */
gint32 left; /* Layer left */
gint32 bottom; /* Layer bottom */
gint32 right; /* Layer right */
} LayerMaskExtra;
/* PSD text reading */
typedef struct
{
gdouble xx; /* Transform information */
gdouble xy;
gdouble yx;
gdouble yy;
gdouble tx;
gdouble ty;
gchar *info; /* Text information */
} PSDText;
typedef struct
{
guint32 size;
guint32 ver;
guchar visible;
guint16 unused;
} PSDLayerStyleCommon;
typedef struct
{
guint32 size;
guint32 ver;
gfloat blur;
gfloat intensity;
gfloat angle;
gfloat distance;
guint16 color[5];
gchar blendsig[4];
guchar effecton;
guchar anglefx;
guchar opacity;
guint16 natcolor[5];
} PSDLayerStyleShadow;
typedef struct
{
guint32 size;
guint32 ver;
guint32 blur;
guint32 intensity;
guint16 color[5];
gchar blendsig[4];
guint32 effect;
guchar effecton;
guchar opacity;
/* Version 2 only */
guchar invert; /* Inner Glow Only */
guint16 natcolor[5];
} PSDLayerStyleGlow;
typedef struct
{
guint32 size;
guint32 ver;
gint32 angle;
guint32 strength;
guint32 blur;
guint32 highlightsig;
guint32 highlighteffect;
guint32 shadowsig;
guint32 shadoweffect;
guint16 highlightcolor[5];
guint16 shadowcolor[5];
guchar style;
guchar highlightopacity;
guchar shadowopacity;
guchar enabled;
guchar global;
guchar direction;
/* Version 2 only */
guint16 highlightnatcolor[5];
guint16 shadownatcolor[5];
} PSDLayerStyleBevel;
typedef struct
{
guint32 size;
guint32 ver;
gchar blend[4];
guint16 color[5];
guchar opacity;
guchar enabled;
guint16 natcolor[5];
} PSDLayerStyleSolidFill;
/* Older PSD Layer Styles format */
typedef struct
{
guint16 version;
guint16 count;
PSDLayerStyleCommon cmns; /* Common State */
PSDLayerStyleShadow dsdw; /* Drop Shadow */
PSDLayerStyleShadow isdw; /* Inner Shadow */
PSDLayerStyleGlow oglw; /* Outer Glow */
PSDLayerStyleGlow iglw; /* Inner Glow */
PSDLayerStyleBevel bevl; /* Bevel */
PSDLayerStyleSolidFill sofi; /* Solid Fill */
} PSDLayerStyles;
/* Partially or Unsupported Features */
typedef struct
{
gboolean show_gui;
gboolean duotone_mode;
gboolean adjustment_layer;
gboolean fill_layer;
gboolean text_layer;
gboolean linked_layer;
gboolean vector_mask;
gboolean smart_object;
gboolean stroke;
gboolean layer_effect;
gboolean layer_comp;
gboolean psd_metadata;
} PSDSupport;
/* PSD Layer data structure */
typedef struct
{
gint32 top; /* Layer top */
gint32 left; /* Layer left */
gint32 bottom; /* Layer bottom */
gint32 right; /* Layer right */
guint16 num_channels; /* Number of channels */
ChannelLengthInfo *chn_info; /* Channel length info */
gchar mode_key[4]; /* Blend mode key */
gchar blend_mode[4]; /* Blend mode */
guchar opacity; /* Opacity - 0 = transparent ... 255 = opaque */
guchar clipping; /* Clipping */
guchar clipping_group_type; /* Used to track group needed for clipping (1 = group start, 2 = group end) */
guchar flags; /* Layer flags */
guchar filler; /* Filler */
guint64 extra_len; /* Extra data length */
gchar *name; /* Layer name */
guint64 mask_len; /* Layer mask data length */
LayerMask layer_mask; /* Layer mask data */
LayerMaskExtra layer_mask_extra; /* Layer mask extra data */
LayerFlags layer_flags; /* Layer flags */
PSDText text; /* PSD text */
guint32 id; /* Layer ID (Tattoo) */
guchar group_type; /* 0 -> not a group; 1 -> open folder; 2 -> closed folder; 3 -> end of group */
guint16 color_tag[4]; /* 4 * 16 bit color components */
PSDLayerStyles *layer_styles; /* Older format of layer styles */
PSDSupport *unsupported_features;
} PSDlayer;
/* PSD Channel data structure */
typedef struct
{
gint16 id; /* Channel ID */
gchar *name; /* Channel name */
gchar *data; /* Channel image data */
guint32 rows; /* Channel rows */
guint32 columns; /* Channel columns */
} PSDchannel;
/* PSD Channel data structure */
typedef struct
{
GeglColor *gimp_color; /* Gimp RGB color */
gint16 opacity; /* Opacity */
guchar ps_mode; /* PS mode flag */
guchar ps_kind; /* PS type flag */
gint16 ps_cspace; /* PS color space */
CMColor ps_color; /* PS color */
} PSDchanneldata;
/* PSD Image Resource data structure */
typedef struct
{
gchar type[4]; /* Image resource type */
gint16 id; /* Image resource ID */
gchar name[256]; /* Image resource name (pascal string) */
guint64 data_start; /* Image resource data start */
guint64 data_len; /* Image resource data length */
} PSDimageres;
/* PSD Layer Resource data structure */
typedef struct
{
gchar sig[4]; /* Layer resource signature */
gchar key[4]; /* Layer resource key */
guint64 data_start; /* Layer resource data start */
guint64 data_len; /* Layer resource data length */
gboolean ibm_pc_format; /* If layers are saved in little endian format */
} PSDlayerres;
/* PSD File data structures */
typedef struct
{
gboolean merged_image_only; /* Whether to load only the merged image data */
guint16 version; /* Version 1 (PSD) or 2 (PSB) */
guint16 channels; /* Number of channels: 1- 56 */
gboolean transparency; /* Image has merged transparency alpha channel */
guint32 rows; /* Number of rows: 1 - 30000 */
guint32 columns; /* Number of columns: 1 - 30000 */
guint16 bps; /* Bits per sample: 1, 8, 16, or 32 */
guint16 color_mode; /* Image color mode: {PSDColorMode} */
GimpImageBaseType base_type; /* Image base color mode: (GIMP) */
guint16 comp_mode; /* Merged image compression mode */
guchar *color_map; /* Color map data */
guint32 color_map_len; /* Color map data length */
guint32 color_map_entries; /* Color map number of entries */
guint64 image_res_start; /* Image resource block start address */
guint64 image_res_len; /* Image resource block length */
guint64 mask_layer_start; /* Mask & layer block start address */
guint64 mask_layer_len; /* Mask & layer block length */
gint16 num_layers; /* Number of layers */
guint64 layer_data_start; /* Layer pixel data start */
guint64 layer_data_len; /* Layer pixel data length */
guint64 merged_image_start; /* Merged image pixel data block start address */
guint64 merged_image_len; /* Merged image pixel data block length */
gboolean no_icc; /* Do not use ICC profile */
guint16 layer_state; /* Active layer index counting from bottom up */
GList *layer_selection; /* Selected layer IDs (GIMP layer tattoos) */
GPtrArray *alpha_names; /* Alpha channel names */
PSDchanneldata **alpha_display_info; /* Alpha channel display info */
guint16 alpha_display_count; /* Number of alpha channel display info recs */
guint32 *alpha_id; /* Alpha channel ids (tattoos) */
guint16 alpha_id_count; /* Number of alpha channel id items */
guint16 quick_mask_id; /* Channel number containing quick mask */
gint32 global_light_angle; /* Global Lighting Angle for Effect layers */
GimpColorProfile *cmyk_profile;
gpointer cmyk_transform;
gpointer cmyk_transform_alpha;
gboolean ibm_pc_format; /* If layers are saved in little endian format */
PSDSupport *unsupported_features;
} PSDimage;
/* Public functions */
#endif /* __PSD_H__ */
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