/* GIMP plug-in to load and save Paint Shop Pro files (.PSP and .TUB) * * Copyright (C) 1999 Tor Lillqvist * * 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 . */ /* * * Work in progress! Doesn't handle saving yet. * * For a copy of the PSP file format documentation, surf to * http://www.jasc.com. * */ #define LOAD_PROC "file-psp-load" #define SAVE_PROC "file-psp-save" #define PLUG_IN_BINARY "file-psp" #define PLUG_IN_ROLE "gimp-file-psp" /* set to the level of debugging output you want, 0 for none */ #define PSP_DEBUG 0 #define IFDBG(level) if (PSP_DEBUG >= level) #include "config.h" #include #include #include #include #include #include #include #include "libgimp/stdplugins-intl.h" /* Note that the upcoming PSP version 6 writes PSP file format version * 4.0, but the documentation for that apparently isn't publicly * available (yet). The format is luckily designed to be somwehat * downward compatible, however. The semantics of many of the * additional fields and block types can be relatively easily reverse * engineered. */ /* The following was cut and pasted from the PSP file format * documentation version 3.0.(Minor stylistic changes done.) * * * To be on the safe side, here is the whole copyright notice from the * specification: * * The Paint Shop Pro File Format Specification (the Specification) is * copyright 1998 by Jasc Software, Inc. Jasc grants you a * nonexclusive license to use the Specification for the sole purposes * of developing software products(s) incorporating the * Specification. You are also granted the right to identify your * software product(s) as incorporating the Paint Shop Pro Format * (PSP) provided that your software in incorporating the * Specification complies with the terms, definitions, constraints and * specifications contained in the Specification and subject to the * following: DISCLAIMER OF WARRANTIES. THE SPECIFICATION IS PROVIDED * AS IS. JASC DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, * INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. * * You are solely responsible for the selection, use, efficiency and * suitability of the Specification for your software products. OTHER * WARRANTIES EXCLUDED. JASC SHALL NOT BE LIABLE FOR ANY DIRECT, * INDIRECT, CONSEQUENTIAL, EXEMPLARY, PUNITIVE OR INCIDENTAL DAMAGES * ARISING FROM ANY CAUSE EVEN IF JASC HAS BEEN ADVISED OF THE * POSSIBILITY OF SUCH DAMAGES. CERTAIN JURISDICTIONS DO NOT PERMIT * THE LIMITATION OR EXCLUSION OF INCIDENTAL DAMAGES, SO THIS * LIMITATION MAY NOT APPLY TO YOU. IN NO EVENT WILL JASC BE LIABLE * FOR ANY AMOUNT GREATER THAN WHAT YOU ACTUALLY PAID FOR THE * SPECIFICATION. Should any warranties be found to exist, such * warranties shall be limited in duration to ninety (90) days * following the date you receive the Specification. * * Indemnification. By your inclusion of the Paint Shop Pro File * Format in your software product(s) you agree to indemnify and hold * Jasc Software, Inc. harmless from any and all claims of any kind or * nature made by any of your customers with respect to your software * product(s). * * Export Laws. You agree that you and your customers will not export * your software or Specification except in compliance with the laws * and regulations of the United States. * * US Government Restricted Rights. The Specification and any * accompanying materials are provided with Restricted Rights. Use, * duplication or disclosure by the Government is subject to * restrictions as set forth in subparagraph (c)(1)(ii) of The Rights * in Technical Data and Computer Software clause at DFARS * 252.227-7013, or subparagraphs (c)(1) and (2) of the Commercial * Computer Software - Restricted Rights at 48 CFR 52.227-19, as * applicable. Contractor/manufacturer is Jasc Software, Inc., PO Box * 44997, Eden Prairie MN 55344. * * Jasc reserves the right to amend, modify, change, revoke or * withdraw the Specification at any time and from time to time. Jasc * shall have no obligation to support or maintain the Specification. */ /* Block identifiers. */ typedef enum { PSP_IMAGE_BLOCK = 0, /* General Image Attributes Block (main) */ PSP_CREATOR_BLOCK, /* Creator Data Block (main) */ PSP_COLOR_BLOCK, /* Color Palette Block (main and sub) */ PSP_LAYER_START_BLOCK, /* Layer Bank Block (main) */ PSP_LAYER_BLOCK, /* Layer Block (sub) */ PSP_CHANNEL_BLOCK, /* Channel Block (sub) */ PSP_SELECTION_BLOCK, /* Selection Block (main) */ PSP_ALPHA_BANK_BLOCK, /* Alpha Bank Block (main) */ PSP_ALPHA_CHANNEL_BLOCK, /* Alpha Channel Block (sub) */ PSP_THUMBNAIL_BLOCK, /* Thumbnail Block (main) */ PSP_EXTENDED_DATA_BLOCK, /* Extended Data Block (main) */ PSP_TUBE_BLOCK, /* Picture Tube Data Block (main) */ PSP_ADJUSTMENT_EXTENSION_BLOCK, /* Adjustment Layer Extension Block (sub) (since PSP6)*/ PSP_VECTOR_EXTENSION_BLOCK, /* Vector Layer Extension Block (sub) (since PSP6) */ PSP_SHAPE_BLOCK, /* Vector Shape Block (sub) (since PSP6) */ PSP_PAINTSTYLE_BLOCK, /* Paint Style Block (sub) (since PSP6) */ PSP_COMPOSITE_IMAGE_BANK_BLOCK, /* Composite Image Bank (main) (since PSP6) */ PSP_COMPOSITE_ATTRIBUTES_BLOCK, /* Composite Image Attributes (sub) (since PSP6) */ PSP_JPEG_BLOCK, /* JPEG Image Block (sub) (since PSP6) */ PSP_LINESTYLE_BLOCK, /* Line Style Block (sub) (since PSP7) */ PSP_TABLE_BANK_BLOCK, /* Table Bank Block (main) (since PSP7) */ PSP_TABLE_BLOCK, /* Table Block (sub) (since PSP7) */ PSP_PAPER_BLOCK, /* Vector Table Paper Block (sub) (since PSP7) */ PSP_PATTERN_BLOCK, /* Vector Table Pattern Block (sub) (since PSP7) */ PSP_GRADIENT_BLOCK, /* Vector Table Gradient Block (not used) (since PSP8) */ PSP_GROUP_EXTENSION_BLOCK, /* Group Layer Block (sub) (since PSP8) */ PSP_MASK_EXTENSION_BLOCK, /* Mask Layer Block (sub) (since PSP8) */ PSP_BRUSH_BLOCK, /* Brush Data Block (main) (since PSP8) */ } PSPBlockID; /* Bitmap type. */ typedef enum { PSP_DIB_IMAGE = 0, /* Layer color bitmap */ PSP_DIB_TRANS_MASK, /* Layer transparency mask bitmap */ PSP_DIB_USER_MASK, /* Layer user mask bitmap */ PSP_DIB_SELECTION, /* Selection mask bitmap */ PSP_DIB_ALPHA_MASK, /* Alpha channel mask bitmap */ PSP_DIB_THUMBNAIL, /* Thumbnail bitmap */ PSP_DIB_THUMBNAIL_TRANS_MASK, /* Thumbnail transparency mask (since PSP6) */ PSP_DIB_ADJUSTMENT_LAYER, /* Adjustment layer bitmap (since PSP6) */ PSP_DIB_COMPOSITE, /* Composite image bitmap (since PSP6) */ PSP_DIB_COMPOSITE_TRANS_MASK, /* Composite image transparency (since PSP6) */ PSP_DIB_PAPER, /* Paper bitmap (since PSP7) */ PSP_DIB_PATTERN, /* Pattern bitmap (since PSP7) */ PSP_DIB_PATTERN_TRANS_MASK, /* Pattern transparency mask (since PSP7) */ } PSPDIBType; /* Type of image in the composite image bank block. (since PSP6) */ typedef enum { PSP_IMAGE_COMPOSITE = 0, /* Composite Image */ PSP_IMAGE_THUMBNAIL, /* Thumbnail Image */ } PSPCompositeImageType; /* Graphic contents flags. (since PSP6) */ typedef enum { /* Layer types */ keGCRasterLayers = 0x00000001, /* At least one raster layer */ keGCVectorLayers = 0x00000002, /* At least one vector layer */ keGCAdjustmentLayers = 0x00000004, /* At least one adjustment layer */ /* Additional attributes */ keGCThumbnail = 0x01000000, /* Has a thumbnail */ keGCThumbnailTransparency = 0x02000000, /* Thumbnail transp. */ keGCComposite = 0x04000000, /* Has a composite image */ keGCCompositeTransparency = 0x08000000, /* Composite transp. */ keGCFlatImage = 0x10000000, /* Just a background */ keGCSelection = 0x20000000, /* Has a selection */ keGCFloatingSelectionLayer = 0x40000000, /* Has float. selection */ keGCAlphaChannels = 0x80000000, /* Has alpha channel(s) */ } PSPGraphicContents; /* Character style flags. (since PSP6) */ typedef enum { keStyleItalic = 0x00000001, /* Italic property bit */ keStyleStruck = 0x00000002, /* Strike­out property bit */ keStyleUnderlined = 0x00000004, /* Underlined property bit */ keStyleWarped = 0x00000008, /* Warped property bit (since PSP8) */ keStyleAntiAliased = 0x00000010, /* Anti­aliased property bit (since PSP8) */ } PSPCharacterProperties; /* Table type. (since PSP7) */ typedef enum { keTTUndefined = 0, /* Undefined table type */ keTTGradientTable, /* Gradient table type */ keTTPaperTable, /* Paper table type */ keTTPatternTable /* Pattern table type */ } PSPTableType; /* Layer flags. (since PSP6) */ typedef enum { keVisibleFlag = 0x00000001, /* Layer is visible */ keMaskPresenceFlag = 0x00000002, /* Layer has a mask */ } PSPLayerProperties; /* Shape property flags. (since PSP6) */ typedef enum { keShapeAntiAliased = 0x00000001, /* Shape is anti­aliased */ keShapeSelected = 0x00000002, /* Shape is selected */ keShapeVisible = 0x00000004, /* Shape is visible */ } PSPShapeProperties; /* Polyline node type flags. (since PSP7) */ typedef enum { keNodeUnconstrained = 0x0000, /* Default node type */ keNodeSmooth = 0x0001, /* Node is smooth */ keNodeSymmetric = 0x0002, /* Node is symmetric */ keNodeAligned = 0x0004, /* Node is aligned */ keNodeActive = 0x0008, /* Node is active */ keNodeLocked = 0x0010, /* Node is locked */ keNodeSelected = 0x0020, /* Node is selected */ keNodeVisible = 0x0040, /* Node is visible */ keNodeClosed = 0x0080, /* Node is closed */ /* TODO: This might be a thinko in the spec document only or in the image * format itself. Need to investigate that later */ keNodeLockedPSP6 = 0x0016, /* Node is locked */ keNodeSelectedPSP6 = 0x0032, /* Node is selected */ keNodeVisiblePSP6 = 0x0064, /* Node is visible */ keNodeClosedPSP6 = 0x0128, /* Node is closed */ } PSPPolylineNodeTypes; /* Blend modes. (since PSP6) */ typedef enum { PSP_BLEND_NORMAL, PSP_BLEND_DARKEN, PSP_BLEND_LIGHTEN, PSP_BLEND_HUE, PSP_BLEND_SATURATION, PSP_BLEND_COLOR, PSP_BLEND_LUMINOSITY, PSP_BLEND_MULTIPLY, PSP_BLEND_SCREEN, PSP_BLEND_DISSOLVE, PSP_BLEND_OVERLAY, PSP_BLEND_HARD_LIGHT, PSP_BLEND_SOFT_LIGHT, PSP_BLEND_DIFFERENCE, PSP_BLEND_DODGE, PSP_BLEND_BURN, PSP_BLEND_EXCLUSION, PSP_BLEND_TRUE_HUE, /* since PSP8 */ PSP_BLEND_TRUE_SATURATION, /* since PSP8 */ PSP_BLEND_TRUE_COLOR, /* since PSP8 */ PSP_BLEND_TRUE_LIGHTNESS, /* since PSP8 */ PSP_BLEND_ADJUST = 255, } PSPBlendModes; /* Adjustment layer types. (since PSP6) */ typedef enum { keAdjNone = 0, /* Undefined adjustment layer type */ keAdjLevel, /* Level adjustment */ keAdjCurve, /* Curve adjustment */ keAdjBrightContrast, /* Brightness­contrast adjustment */ keAdjColorBal, /* Color balance adjustment */ keAdjHSL, /* HSL adjustment */ keAdjChannelMixer, /* Channel mixer adjustment */ keAdjInvert, /* Invert adjustment */ keAdjThreshold, /* Threshold adjustment */ keAdjPoster /* Posterize adjustment */ } PSPAdjustmentLayerType; /* Vector shape types. (since PSP6) */ typedef enum { keVSTUnknown = 0, /* Undefined vector type */ keVSTText, /* Shape represents lines of text */ keVSTPolyline, /* Shape represents a multiple segment line */ keVSTEllipse, /* Shape represents an ellipse (or circle) */ keVSTPolygon, /* Shape represents a closed polygon */ keVSTGroup, /* Shape represents a group shape (since PSP7) */ } PSPVectorShapeType; /* Text element types. (since PSP6) */ typedef enum { keTextElemUnknown = 0, /* Undefined text element type */ keTextElemChar, /* A single character code */ keTextElemCharStyle, /* A character style change */ keTextElemLineStyle /* A line style change */ } PSPTextElementType; /* Text alignment types. (since PSP6) */ typedef enum { keTextAlignmentLeft = 0, /* Left text alignment */ keTextAlignmentCenter, /* Center text alignment */ keTextAlignmentRight /* Right text alignment */ } PSPTextAlignment; /* Paint style types. (since PSP6) */ typedef enum { keStyleNone = 0x0000, /* No paint style info applies */ keStyleColor = 0x0001, /* Color paint style info */ keStyleGradient = 0x0002, /* Gradient paint style info */ keStylePattern = 0x0004, /* Pattern paint style info (since PSP7) */ keStylePaper = 0x0008, /* Paper paint style info (since PSP7) */ keStylePen = 0x0010, /* Organic pen paint style info (since PSP7) */ } PSPPaintStyleType; /* Gradient type. (since PSP7) */ typedef enum { keSGTLinear = 0, /* Linera gradient type */ keSGTRadial, /* Radial gradient type */ keSGTRectangular, /* Rectangulat gradient type */ keSGTSunburst /* Sunburst gradient type */ } PSPStyleGradientType; /* Paint Style Cap Type (Start & End). (since PSP7) */ typedef enum { keSCTCapFlat = 0, /* Flat cap type (was round in psp6) */ keSCTCapRound, /* Round cap type (was square in psp6) */ keSCTCapSquare, /* Square cap type (was flat in psp6) */ keSCTCapArrow, /* Arrow cap type */ keSCTCapCadArrow, /* Cad arrow cap type */ keSCTCapCurvedTipArrow, /* Curved tip arrow cap type */ keSCTCapRingBaseArrow, /* Ring base arrow cap type */ keSCTCapFluerDelis, /* Fluer deLis cap type */ keSCTCapFootball, /* Football cap type */ keSCTCapXr71Arrow, /* Xr71 arrow cap type */ keSCTCapLilly, /* Lilly cap type */ keSCTCapPinapple, /* Pinapple cap type */ keSCTCapBall, /* Ball cap type */ keSCTCapTulip /* Tulip cap type */ } PSPStyleCapType; /* Paint Style Join Type. (since PSP7) */ typedef enum { keSJTJoinMiter = 0, keSJTJoinRound, keSJTJoinBevel } PSPStyleJoinType; /* Organic pen type. (since PSP7) */ typedef enum { keSPTOrganicPenNone = 0, /* Undefined pen type */ keSPTOrganicPenMesh, /* Mesh pen type */ keSPTOrganicPenSand, /* Sand pen type */ keSPTOrganicPenCurlicues, /* Curlicues pen type */ keSPTOrganicPenRays, /* Rays pen type */ keSPTOrganicPenRipple, /* Ripple pen type */ keSPTOrganicPenWave, /* Wave pen type */ keSPTOrganicPen /* Generic pen type */ } PSPStylePenType; /* Channel types. */ typedef enum { PSP_CHANNEL_COMPOSITE = 0, /* Channel of single channel bitmap */ PSP_CHANNEL_RED, /* Red channel of 24 bit bitmap */ PSP_CHANNEL_GREEN, /* Green channel of 24 bit bitmap */ PSP_CHANNEL_BLUE /* Blue channel of 24 bit bitmap */ } PSPChannelType; /* Possible metrics used to measure resolution. */ typedef enum { PSP_METRIC_UNDEFINED = 0, /* Metric unknown */ PSP_METRIC_INCH, /* Resolution is in inches */ PSP_METRIC_CM /* Resolution is in centimeters */ } PSP_METRIC; /* Possible types of compression. */ typedef enum { PSP_COMP_NONE = 0, /* No compression */ PSP_COMP_RLE, /* RLE compression */ PSP_COMP_LZ77, /* LZ77 compression */ PSP_COMP_JPEG /* JPEG compression (only used by thumbnail and composite image) (since PSP6) */ } PSPCompression; /* Picture tube placement mode. */ typedef enum { tpmRandom, /* Place tube images in random intervals */ tpmConstant /* Place tube images in constant intervals */ } TubePlacementMode; /* Picture tube selection mode. */ typedef enum { tsmRandom, /* Randomly select the next image in */ /* tube to display */ tsmIncremental, /* Select each tube image in turn */ tsmAngular, /* Select image based on cursor direction */ tsmPressure, /* Select image based on pressure */ /* (from pressure-sensitive pad) */ tsmVelocity /* Select image based on cursor speed */ } TubeSelectionMode; /* Extended data field types. */ typedef enum { PSP_XDATA_TRNS_INDEX = 0, /* Transparency index field */ PSP_XDATA_GRID, /* Image grid information (since PSP7) */ PSP_XDATA_GUIDE, /* Image guide information (since PSP7) */ PSP_XDATA_EXIF, /* Image EXIF information (since PSP8) */ } PSPExtendedDataID; /* Creator field types. */ typedef enum { PSP_CRTR_FLD_TITLE = 0, /* Image document title field */ PSP_CRTR_FLD_CRT_DATE, /* Creation date field */ PSP_CRTR_FLD_MOD_DATE, /* Modification date field */ PSP_CRTR_FLD_ARTIST, /* Artist name field */ PSP_CRTR_FLD_CPYRGHT, /* Copyright holder name field */ PSP_CRTR_FLD_DESC, /* Image document description field */ PSP_CRTR_FLD_APP_ID, /* Creating app id field */ PSP_CRTR_FLD_APP_VER /* Creating app version field */ } PSPCreatorFieldID; /* Grid units type. (since PSP7) */ typedef enum { keGridUnitsPixels = 0, /* Grid units is pixels */ keGridUnitsInches, /* Grid units is inches */ keGridUnitsCentimeters /* Grid units is centimeters */ } PSPGridUnitsType; /* Guide orientation type. (since PSP7) */ typedef enum { keHorizontalGuide = 0, keVerticalGuide } PSPGuideOrientationType; /* Creator application identifiers. */ typedef enum { PSP_CREATOR_APP_UNKNOWN = 0, /* Creator application unknown */ PSP_CREATOR_APP_PAINT_SHOP_PRO /* Creator is Paint Shop Pro */ } PSPCreatorAppID; /* Layer types. */ typedef enum { PSP_LAYER_NORMAL = 0, /* Normal layer */ PSP_LAYER_FLOATING_SELECTION /* Floating selection layer */ } PSPLayerTypePSP5; /* Layer types. (since PSP6) */ typedef enum { keGLTUndefined = 0, /* Undefined layer type */ keGLTRaster, /* Standard raster layer */ keGLTFloatingRasterSelection, /* Floating selection (raster layer) */ keGLTVector, /* Vector layer */ keGLTAdjustment, /* Adjustment layer */ keGLTMask /* Mask layer (since PSP8) */ } PSPLayerTypePSP6; /* Truth values. */ #if 0 /* FALSE and TRUE taken by GLib */ typedef enum { FALSE = 0, TRUE } PSP_BOOLEAN; #else typedef gboolean PSP_BOOLEAN; #endif /* End of cut&paste from psp spec */ /* We store the various PSP data in own structures. * We cannot use structs intended to be direct copies of the file block * headers because of struct alignment issues. */ typedef struct { guint32 width, height; gdouble resolution; guchar metric; guint16 compression; guint16 depth; guchar greyscale; guint32 active_layer; guint16 layer_count; } PSPimage; /* Declare some local functions. */ static void query (void); static void run (const gchar *name, gint nparams, const GimpParam *param, gint *nreturn_vals, GimpParam **return_vals); static gint32 load_image (const gchar *filename, GError **error); static gint save_image (const gchar *filename, gint32 image_ID, gint32 drawable_ID, GError **error); /* Various local variables... */ const GimpPlugInInfo PLUG_IN_INFO = { NULL, /* init_proc */ NULL, /* quit_proc */ query, /* query_proc */ run, /* run_proc */ }; /* Save info */ typedef struct { PSPCompression compression; } PSPSaveVals; static PSPSaveVals psvals = { PSP_COMP_LZ77 }; static guint16 psp_ver_major, psp_ver_minor; MAIN () static void query (void) { static const GimpParamDef load_args[] = { { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" }, { GIMP_PDB_STRING, "filename", "The name of the file to load" }, { GIMP_PDB_STRING, "raw-filename", "The name of the file to load" } }; static const GimpParamDef load_return_vals[] = { { GIMP_PDB_IMAGE, "image", "Output image" } }; #if 0 static const GimpParamDef save_args[] = { { GIMP_PDB_INT32, "run-mode", "The run mode { RUN-INTERACTIVE (0), RUN-NONINTERACTIVE (1) }" }, { GIMP_PDB_IMAGE, "image", "Input image" }, { GIMP_PDB_DRAWABLE, "drawable", "Drawable to save" }, { GIMP_PDB_STRING, "filename", "The name of the file to save the image in" }, { GIMP_PDB_STRING, "raw-filename", "The name of the file to save the image in" }, { GIMP_PDB_INT32, "compression", "Specify 0 for no compression, 1 for RLE, and 2 for LZ77" } }; #endif gimp_install_procedure (LOAD_PROC, "loads images from the Paint Shop Pro PSP file format", "This plug-in loads and saves images in " "Paint Shop Pro's native PSP format. " "Vector layers aren't handled. Saving isn't " "yet implemented.", "Tor Lillqvist", "Tor Lillqvist", "1999", N_("Paint Shop Pro image"), NULL, GIMP_PLUGIN, G_N_ELEMENTS (load_args), G_N_ELEMENTS (load_return_vals), load_args, load_return_vals); gimp_register_file_handler_mime (LOAD_PROC, "image/x-psp"); gimp_register_magic_load_handler (LOAD_PROC, "psp,tub,pspimage", "", "0,string,Paint\\040Shop\\040Pro\\040Image\\040File\n\032"); /* commented out until saving is implemented */ #if 0 gimp_install_procedure (SAVE_PROC, "saves images in the Paint Shop Pro PSP file format", "This plug-in loads and saves images in " "Paint Shop Pro's native PSP format. " "Vector layers aren't handled. Saving isn't " "yet implemented.", "Tor Lillqvist", "Tor Lillqvist", "1999", N_("Paint Shop Pro image"), "RGB*, GRAY*, INDEXED*", GIMP_PLUGIN, G_N_ELEMENTS (save_args), 0, save_args, NULL); gimp_register_save_handler (SAVE_PROC, "psp,tub", ""); #endif } static gboolean save_dialog (void) { GtkWidget *dialog; GtkWidget *frame; gint run; dialog = gimp_export_dialog_new (_("PSP"), PLUG_IN_BINARY, SAVE_PROC); /* file save type */ frame = gimp_int_radio_group_new (TRUE, _("Data Compression"), G_CALLBACK (gimp_radio_button_update), &psvals.compression, psvals.compression, C_("compression", "None"), PSP_COMP_NONE, NULL, _("RLE"), PSP_COMP_RLE, NULL, _("LZ77"), PSP_COMP_LZ77, NULL, NULL); gtk_container_set_border_width (GTK_CONTAINER (frame), 12); gtk_box_pack_start (GTK_BOX (gimp_export_dialog_get_content_area (dialog)), frame, FALSE, TRUE, 0); gtk_widget_show (frame); gtk_widget_show (dialog); run = (gimp_dialog_run (GIMP_DIALOG (dialog)) == GTK_RESPONSE_OK); gtk_widget_destroy (dialog); return run; } /* This helper method is used to get the name of the block for the known block * types. The enum PSPBlockID must cover the input values. */ static const gchar * block_name (gint id) { static const gchar *block_names[] = { "IMAGE", "CREATOR", "COLOR", "LAYER_START", "LAYER", "CHANNEL", "SELECTION", "ALPHA_BANK", "ALPHA_CHANNEL", "THUMBNAIL", "EXTENDED_DATA", "TUBE", "ADJUSTMENT_EXTENSION", "VECTOR_EXTENSION_BLOCK", "SHAPE_BLOCK", "PAINTSTYLE_BLOCK", "COMPOSITE_IMAGE_BANK_BLOCK", "COMPOSITE_ATTRIBUTES_BLOCK", "JPEG_BLOCK", }; static gchar *err_name = NULL; if (id >= 0 && id <= PSP_JPEG_BLOCK) return block_names[id]; g_free (err_name); err_name = g_strdup_printf ("id=%d", id); return err_name; } /* This helper method is used during loading. It verifies the block we are * reading has a valid header. Fills the variables init_len and total_len */ static gint read_block_header (FILE *f, guint32 *init_len, guint32 *total_len) { guchar buf[4]; guint16 id; long header_start; guint32 len; IFDBG(3) header_start = ftell (f); if (fread (buf, 4, 1, f) < 1 || fread (&id, 2, 1, f) < 1 || fread (&len, 4, 1, f) < 1 || (psp_ver_major < 4 && fread (total_len, 4, 1, f) < 1)) { g_message ("Error reading block header"); return -1; } if (memcmp (buf, "~BK\0", 4) != 0) { IFDBG(3) g_message ("Invalid block header at %ld", header_start); else g_message ("Invalid block header"); return -1; } IFDBG(3) g_message ("%s at %ld", block_name (id), header_start); if (psp_ver_major < 4) { *init_len = GUINT32_FROM_LE (len); *total_len = GUINT32_FROM_LE (*total_len); } else { /* Version 4.0 seems to have dropped the initial data chunk length * field. */ *init_len = 0xDEADBEEF; /* Intentionally bogus, should not be used */ *total_len = GUINT32_FROM_LE (len); } return GUINT16_FROM_LE (id); } /* Read the PSP_IMAGE_BLOCK */ static gint read_general_image_attribute_block (FILE *f, guint init_len, guint total_len, PSPimage *ia) { gchar buf[6]; guint64 res; gchar graphics_content[4]; if (init_len < 38 || total_len < 38) { g_message ("Invalid general image attribute chunk size"); return -1; } if (psp_ver_major >= 4) { /* TODO: This causes the chunk size to be ignored. Better verify if it is * valid since it might create read offset problems with the * "expansion field" (which follows after the "graphics content" and * is of unkown size). */ fseek (f, 4, SEEK_CUR); } if (fread (&ia->width, 4, 1, f) < 1 || fread (&ia->height, 4, 1, f) < 1 || fread (&res, 8, 1, f) < 1 || fread (&ia->metric, 1, 1, f) < 1 || fread (&ia->compression, 2, 1, f) < 1 || fread (&ia->depth, 2, 1, f) < 1 || fread (buf, 2+4, 1, f) < 1 /* Skip plane and colour count */ || fread (&ia->greyscale, 1, 1, f) < 1 || fread (buf, 4, 1, f) < 1 /* Skip total image size */ || fread (&ia->active_layer, 4, 1, f) < 1 || fread (&ia->layer_count, 2, 1, f) < 1 || (psp_ver_major >= 4 && fread (graphics_content, 4, 1, f) < 1)) { g_message ("Error reading general image attribute block"); return -1; } ia->width = GUINT32_FROM_LE (ia->width); ia->height = GUINT32_FROM_LE (ia->height); res = GUINT64_FROM_LE (res); memcpy (&ia->resolution, &res, 8); if (ia->metric == PSP_METRIC_CM) ia->resolution /= 2.54; ia->compression = GUINT16_FROM_LE (ia->compression); if (ia->compression > PSP_COMP_LZ77) { g_message ("Unknown compression type %d", ia->compression); return -1; } ia->depth = GUINT16_FROM_LE (ia->depth); if (ia->depth != 24) { g_message ("Unsupported bit depth %d", ia->depth); return -1; } ia->active_layer = GUINT32_FROM_LE (ia->active_layer); ia->layer_count = GUINT16_FROM_LE (ia->layer_count); return 0; } static gint try_fseek (FILE *f, glong pos, gint whence) { if (fseek (f, pos, whence) < 0) { g_message ("Seek error: %s", g_strerror (errno)); fclose (f); return -1; } return 0; } static gint read_creator_block (FILE *f, gint image_ID, guint total_len, PSPimage *ia) { long data_start; guchar buf[4]; guint16 keyword; guint32 length; gchar *string; gchar *title = NULL, *artist = NULL, *copyright = NULL, *description = NULL; guint32 dword; guint32 cdate = 0, mdate = 0, appid, appver; GString *comment; GimpParasite *comment_parasite; data_start = ftell (f); comment = g_string_new (NULL); while (ftell (f) < data_start + total_len) { if (fread (buf, 4, 1, f) < 1 || fread (&keyword, 2, 1, f) < 1 || fread (&length, 4, 1, f) < 1) { g_message ("Error reading creator keyword chunk"); return -1; } if (memcmp (buf, "~FL\0", 4) != 0) { g_message ("Invalid keyword chunk header"); return -1; } keyword = GUINT16_FROM_LE (keyword); length = GUINT32_FROM_LE (length); switch (keyword) { case PSP_CRTR_FLD_TITLE: case PSP_CRTR_FLD_ARTIST: case PSP_CRTR_FLD_CPYRGHT: case PSP_CRTR_FLD_DESC: string = g_malloc (length + 1); if (fread (string, length, 1, f) < 1) { g_message ("Error reading creator keyword data"); g_free (string); return -1; } switch (keyword) { case PSP_CRTR_FLD_TITLE: g_free (title); title = string; break; case PSP_CRTR_FLD_ARTIST: g_free (artist); artist = string; break; case PSP_CRTR_FLD_CPYRGHT: g_free (copyright); copyright = string; break; case PSP_CRTR_FLD_DESC: g_free (description); description = string; break; default: g_free (string); } break; case PSP_CRTR_FLD_CRT_DATE: case PSP_CRTR_FLD_MOD_DATE: case PSP_CRTR_FLD_APP_ID: case PSP_CRTR_FLD_APP_VER: if (fread (&dword, 4, 1, f) < 1) { g_message ("Error reading creator keyword data"); return -1; } switch (keyword) { case PSP_CRTR_FLD_CRT_DATE: cdate = dword; break; case PSP_CRTR_FLD_MOD_DATE: mdate = dword; break; case PSP_CRTR_FLD_APP_ID: appid = dword; break; case PSP_CRTR_FLD_APP_VER: appver = dword; break; } break; default: if (try_fseek (f, length, SEEK_CUR) < 0) { return -1; } break; } } if (title) { g_string_append (comment, title); g_free (title); g_string_append (comment, "\n"); } if (artist) { g_string_append (comment, artist); g_free (artist); g_string_append (comment, "\n"); } if (copyright) { g_string_append (comment, "Copyright "); g_string_append (comment, copyright); g_free (copyright); g_string_append (comment, "\n"); } if (description) { g_string_append (comment, description); g_free (description); g_string_append (comment, "\n"); } if (comment->len > 0) { comment_parasite = gimp_parasite_new ("gimp-comment", GIMP_PARASITE_PERSISTENT, strlen (comment->str) + 1, comment->str); gimp_image_attach_parasite (image_ID, comment_parasite); gimp_parasite_free (comment_parasite); } g_string_free (comment, FALSE); return 0; } static void inline swab_rect (guint32 *rect) { rect[0] = GUINT32_FROM_LE (rect[0]); rect[1] = GUINT32_FROM_LE (rect[1]); rect[2] = GUINT32_FROM_LE (rect[2]); rect[3] = GUINT32_FROM_LE (rect[3]); } static GimpLayerModeEffects gimp_layer_mode_from_psp_blend_mode (PSPBlendModes mode) { switch (mode) { case PSP_BLEND_NORMAL: return GIMP_NORMAL_MODE; case PSP_BLEND_DARKEN: return GIMP_DARKEN_ONLY_MODE; case PSP_BLEND_LIGHTEN: return GIMP_LIGHTEN_ONLY_MODE; case PSP_BLEND_HUE: return GIMP_HUE_MODE; case PSP_BLEND_SATURATION: return GIMP_SATURATION_MODE; case PSP_BLEND_COLOR: return GIMP_COLOR_MODE; case PSP_BLEND_LUMINOSITY: return GIMP_VALUE_MODE; /* ??? */ case PSP_BLEND_MULTIPLY: return GIMP_MULTIPLY_MODE; case PSP_BLEND_SCREEN: return GIMP_SCREEN_MODE; case PSP_BLEND_DISSOLVE: return GIMP_DISSOLVE_MODE; case PSP_BLEND_OVERLAY: return GIMP_OVERLAY_MODE; case PSP_BLEND_HARD_LIGHT: return GIMP_HARDLIGHT_MODE; case PSP_BLEND_SOFT_LIGHT: return GIMP_SOFTLIGHT_MODE; case PSP_BLEND_DIFFERENCE: return GIMP_DIFFERENCE_MODE; case PSP_BLEND_DODGE: return GIMP_DODGE_MODE; case PSP_BLEND_BURN: return GIMP_BURN_MODE; case PSP_BLEND_EXCLUSION: return -1; /* ??? */ case PSP_BLEND_ADJUST: return -1; /* ??? */ case PSP_BLEND_TRUE_HUE: return -1; /* ??? */ case PSP_BLEND_TRUE_SATURATION: return -1; /* ??? */ case PSP_BLEND_TRUE_COLOR: return -1; /* ??? */ case PSP_BLEND_TRUE_LIGHTNESS: return -1; /* ??? */ } return -1; } static const gchar * blend_mode_name (PSPBlendModes mode) { static const gchar *blend_mode_names[] = { "NORMAL", "DARKEN", "LIGHTEN", "HUE", "SATURATION", "COLOR", "LUMINOSITY", "MULTIPLY", "SCREEN", "DISSOLVE", "OVERLAY", "HARD_LIGHT", "SOFT_LIGHT", "DIFFERENCE", "DODGE", "BURN", "EXCLUSION" }; static gchar *err_name = NULL; /* TODO: what about PSP_BLEND_ADJUST? */ if (mode >= 0 && mode <= PSP_BLEND_EXCLUSION) return blend_mode_names[mode]; g_free (err_name); err_name = g_strdup_printf ("unknown layer blend mode %d", mode); return err_name; } static const gchar * bitmap_type_name (gint type) { static const gchar *bitmap_type_names[] = { "IMAGE", "TRANS_MASK", "USER_MASK", "SELECTION", "ALPHA_MASK", "THUMBNAIL" }; static gchar *err_name = NULL; if (type >= 0 && type <= PSP_DIB_THUMBNAIL) return bitmap_type_names[type]; g_free (err_name); err_name = g_strdup_printf ("unknown bitmap type %d", type); return err_name; } static const gchar * channel_type_name (gint type) { static const gchar *channel_type_names[] = { "COMPOSITE", "RED", "GREEN", "BLUE" }; static gchar *err_name = NULL; if (type >= 0 && type <= PSP_CHANNEL_BLUE) return channel_type_names[type]; g_free (err_name); err_name = g_strdup_printf ("unknown channel type %d", type); return err_name; } static void * psp_zalloc (void *opaque, guint items, guint size) { return g_malloc (items*size); } static void psp_zfree (void *opaque, void *ptr) { g_free (ptr); } static int read_channel_data (FILE *f, PSPimage *ia, guchar **pixels, guint bytespp, guint offset, GimpDrawable *drawable, guint32 compressed_len) { gint i, y, width = drawable->width, height = drawable->height; gint npixels = width * height; guchar *buf; guchar *buf2 = NULL; /* please the compiler */ guchar runcount, byte; z_stream zstream; switch (ia->compression) { case PSP_COMP_NONE: if (bytespp == 1) { if ((width % 4) == 0) fread (pixels[0], height * width, 1, f); else { for (y = 0; y < height; y++) { fread (pixels[y], width, 1, f); fseek (f, 4 - (width % 4), SEEK_CUR); } } } else { buf = g_malloc (width); for (y = 0; y < height; y++) { guchar *p, *q; fread (buf, width, 1, f); if (width % 4) fseek (f, 4 - (width % 4), SEEK_CUR); p = buf; q = pixels[y] + offset; for (i = 0; i < width; i++) { *q = *p++; q += bytespp; } } g_free (buf); } break; case PSP_COMP_RLE: { guchar *q, *endq; q = pixels[0] + offset; endq = q + npixels * bytespp; buf = g_malloc (127); while (q < endq) { fread (&runcount, 1, 1, f); if (runcount > 128) { runcount -= 128; fread (&byte, 1, 1, f); memset (buf, byte, runcount); } else fread (buf, runcount, 1, f); /* prevent buffer overflow for bogus data */ runcount = MIN (runcount, (endq - q) / bytespp); if (bytespp == 1) { memmove (q, buf, runcount); q += runcount; } else { guchar *p = buf; for (i = 0; i < runcount; i++) { *q = *p++; q += bytespp; } } } g_free (buf); } break; case PSP_COMP_LZ77: buf = g_malloc (compressed_len); fread (buf, compressed_len, 1, f); zstream.next_in = buf; zstream.avail_in = compressed_len; zstream.zalloc = psp_zalloc; zstream.zfree = psp_zfree; zstream.opaque = f; if (inflateInit (&zstream) != Z_OK) { g_message ("zlib error"); return -1; } if (bytespp == 1) zstream.next_out = pixels[0]; else { buf2 = g_malloc (npixels); zstream.next_out = buf2; } zstream.avail_out = npixels; if (inflate (&zstream, Z_FINISH) != Z_STREAM_END) { g_message ("zlib error"); inflateEnd (&zstream); return -1; } inflateEnd (&zstream); g_free (buf); if (bytespp > 1) { guchar *p, *q; p = buf2; q = pixels[0] + offset; for (i = 0; i < npixels; i++) { *q = *p++; q += bytespp; } g_free (buf2); } break; } return 0; } static gint read_layer_block (FILE *f, gint image_ID, guint total_len, PSPimage *ia) { gint i; long block_start, sub_block_start, channel_start; gint sub_id; guint32 sub_init_len, sub_total_len; gchar *name = NULL; guint16 namelen; guchar type, opacity, blend_mode, visibility, transparency_protected; guchar link_group_id, mask_linked, mask_disabled; guint32 image_rect[4], saved_image_rect[4], mask_rect[4], saved_mask_rect[4]; gboolean null_layer = FALSE; guint16 bitmap_count, channel_count; GimpImageType drawable_type; guint32 layer_ID = 0; GimpLayerModeEffects layer_mode; guint32 channel_init_len, channel_total_len; guint32 compressed_len, uncompressed_len; guint16 bitmap_type, channel_type; gint width, height, bytespp, offset; guchar **pixels, *pixel; GimpDrawable *drawable; GimpPixelRgn pixel_rgn; block_start = ftell (f); while (ftell (f) < block_start + total_len) { /* Read the layer sub-block header */ sub_id = read_block_header (f, &sub_init_len, &sub_total_len); if (sub_id == -1) return -1; if (sub_id != PSP_LAYER_BLOCK) { g_message ("Invalid layer sub-block %s, should be LAYER", block_name (sub_id)); return -1; } sub_block_start = ftell (f); /* Read layer information chunk */ if (psp_ver_major >= 4) { if (fseek (f, 4, SEEK_CUR) < 0 || fread (&namelen, 2, 1, f) < 1 || ((namelen = GUINT16_FROM_LE (namelen)) && FALSE) || (name = g_malloc (namelen + 1)) == NULL || fread (name, namelen, 1, f) < 1 || fread (&type, 1, 1, f) < 1 || fread (&image_rect, 16, 1, f) < 1 || fread (&saved_image_rect, 16, 1, f) < 1 || fread (&opacity, 1, 1, f) < 1 || fread (&blend_mode, 1, 1, f) < 1 || fread (&visibility, 1, 1, f) < 1 || fread (&transparency_protected, 1, 1, f) < 1 || fread (&link_group_id, 1, 1, f) < 1 || fread (&mask_rect, 16, 1, f) < 1 || fread (&saved_mask_rect, 16, 1, f) < 1 || fread (&mask_linked, 1, 1, f) < 1 || fread (&mask_disabled, 1, 1, f) < 1 || fseek (f, 47, SEEK_CUR) < 0 || fread (&bitmap_count, 2, 1, f) < 1 || fread (&channel_count, 2, 1, f) < 1) { g_message ("Error reading layer information chunk"); g_free (name); return -1; } name[namelen] = 0; type = PSP_LAYER_NORMAL; /* ??? */ } else { name = g_malloc (257); name[256] = 0; if (fread (name, 256, 1, f) < 1 || fread (&type, 1, 1, f) < 1 || fread (&image_rect, 16, 1, f) < 1 || fread (&saved_image_rect, 16, 1, f) < 1 || fread (&opacity, 1, 1, f) < 1 || fread (&blend_mode, 1, 1, f) < 1 || fread (&visibility, 1, 1, f) < 1 || fread (&transparency_protected, 1, 1, f) < 1 || fread (&link_group_id, 1, 1, f) < 1 || fread (&mask_rect, 16, 1, f) < 1 || fread (&saved_mask_rect, 16, 1, f) < 1 || fread (&mask_linked, 1, 1, f) < 1 || fread (&mask_disabled, 1, 1, f) < 1 || fseek (f, 43, SEEK_CUR) < 0 || fread (&bitmap_count, 2, 1, f) < 1 || fread (&channel_count, 2, 1, f) < 1) { g_message ("Error reading layer information chunk"); g_free (name); return -1; } } if (type == PSP_LAYER_FLOATING_SELECTION) g_message ("Floating selection restored as normal layer"); swab_rect (image_rect); swab_rect (saved_image_rect); swab_rect (mask_rect); swab_rect (saved_mask_rect); bitmap_count = GUINT16_FROM_LE (bitmap_count); channel_count = GUINT16_FROM_LE (channel_count); layer_mode = gimp_layer_mode_from_psp_blend_mode (blend_mode); if ((int) layer_mode == -1) { g_message ("Unsupported PSP layer blend mode %s " "for layer %s, setting layer invisible", blend_mode_name (blend_mode), name); layer_mode = GIMP_NORMAL_MODE; visibility = FALSE; } width = saved_image_rect[2] - saved_image_rect[0]; height = saved_image_rect[3] - saved_image_rect[1]; if ((width < 0) || (width > GIMP_MAX_IMAGE_SIZE) /* w <= 2^18 */ || (height < 0) || (height > GIMP_MAX_IMAGE_SIZE) /* h <= 2^18 */ || ((width / 256) * (height / 256) >= 8192)) /* w * h < 2^29 */ { g_message ("Invalid layer dimensions: %dx%d", width, height); return -1; } IFDBG(2) g_message ("layer: %s %dx%d (%dx%d) @%d,%d opacity %d blend_mode %s " "%d bitmaps %d channels", name, image_rect[2] - image_rect[0], image_rect[3] - image_rect[1], width, height, saved_image_rect[0], saved_image_rect[1], opacity, blend_mode_name (blend_mode), bitmap_count, channel_count); IFDBG(2) g_message ("mask %dx%d (%dx%d) @%d,%d", mask_rect[2] - mask_rect[0], mask_rect[3] - mask_rect[1], saved_mask_rect[2] - saved_mask_rect[0], saved_mask_rect[3] - saved_mask_rect[1], saved_mask_rect[0], saved_mask_rect[1]); if (width == 0) { width++; null_layer = TRUE; } if (height == 0) { height++; null_layer = TRUE; } if (ia->greyscale) if (!null_layer && bitmap_count == 1) drawable_type = GIMP_GRAY_IMAGE, bytespp = 1; else drawable_type = GIMP_GRAYA_IMAGE, bytespp = 1; else if (!null_layer && bitmap_count == 1) drawable_type = GIMP_RGB_IMAGE, bytespp = 3; else drawable_type = GIMP_RGBA_IMAGE, bytespp = 4; layer_ID = gimp_layer_new (image_ID, name, width, height, drawable_type, 100.0 * opacity / 255.0, layer_mode); if (layer_ID == -1) { g_message ("Error creating layer"); return -1; } g_free (name); gimp_image_insert_layer (image_ID, layer_ID, -1, -1); if (saved_image_rect[0] != 0 || saved_image_rect[1] != 0) gimp_layer_set_offsets (layer_ID, saved_image_rect[0], saved_image_rect[1]); if (!visibility) gimp_item_set_visible (layer_ID, FALSE); gimp_layer_set_lock_alpha (layer_ID, transparency_protected); if (psp_ver_major < 4) if (try_fseek (f, sub_block_start + sub_init_len, SEEK_SET) < 0) { return -1; } pixel = g_malloc0 (height * width * bytespp); if (null_layer) { pixels = NULL; } else { pixels = g_new (guchar *, height); for (i = 0; i < height; i++) pixels[i] = pixel + width * bytespp * i; } drawable = gimp_drawable_get (layer_ID); gimp_pixel_rgn_init (&pixel_rgn, drawable, 0, 0, width, height, TRUE, FALSE); gimp_tile_cache_size (gimp_tile_height () * width * bytespp); /* Read the layer channel sub-blocks */ while (ftell (f) < sub_block_start + sub_total_len) { sub_id = read_block_header (f, &channel_init_len, &channel_total_len); if (sub_id == -1) { gimp_image_delete (image_ID); return -1; } if (sub_id != PSP_CHANNEL_BLOCK) { g_message ("Invalid layer sub-block %s, should be CHANNEL", block_name (sub_id)); return -1; } channel_start = ftell (f); if (psp_ver_major == 4) fseek (f, 4, SEEK_CUR); /* Unknown field */ if (fread (&compressed_len, 4, 1, f) < 1 || fread (&uncompressed_len, 4, 1, f) < 1 || fread (&bitmap_type, 2, 1, f) < 1 || fread (&channel_type, 2, 1, f) < 1) { g_message ("Error reading channel information chunk"); return -1; } compressed_len = GUINT32_FROM_LE (compressed_len); uncompressed_len = GUINT32_FROM_LE (uncompressed_len); bitmap_type = GUINT16_FROM_LE (bitmap_type); channel_type = GUINT16_FROM_LE (channel_type); if (bitmap_type > PSP_DIB_USER_MASK) { g_message ("Invalid bitmap type %d in channel information chunk", bitmap_type); return -1; } if (channel_type > PSP_CHANNEL_BLUE) { g_message ("Invalid channel type %d in channel information chunk", channel_type); return -1; } IFDBG(2) g_message ("channel: %s %s %d (%d) bytes %d bytespp", bitmap_type_name (bitmap_type), channel_type_name (channel_type), uncompressed_len, compressed_len, bytespp); if (bitmap_type == PSP_DIB_TRANS_MASK) offset = 3; else offset = channel_type - PSP_CHANNEL_RED; if (psp_ver_major < 4) if (try_fseek (f, channel_start + channel_init_len, SEEK_SET) < 0) { return -1; } if (!null_layer) if (read_channel_data (f, ia, pixels, bytespp, offset, drawable, compressed_len) == -1) { return -1; } if (try_fseek (f, channel_start + channel_total_len, SEEK_SET) < 0) { return -1; } } gimp_pixel_rgn_set_rect (&pixel_rgn, pixel, 0, 0, width, height); gimp_drawable_flush (drawable); gimp_drawable_detach (drawable); g_free (pixels); g_free (pixel); } if (try_fseek (f, block_start + total_len, SEEK_SET) < 0) { return -1; } return layer_ID; } static gint read_tube_block (FILE *f, gint image_ID, guint total_len, PSPimage *ia) { guint16 version; guchar name[514]; guint32 step_size, column_count, row_count, cell_count; guint32 placement_mode, selection_mode; gint i; GimpPixPipeParams params; GimpParasite *pipe_parasite; gchar *parasite_text; gimp_pixpipe_params_init (¶ms); if (fread (&version, 2, 1, f) < 1 || fread (name, 513, 1, f) < 1 || fread (&step_size, 4, 1, f) < 1 || fread (&column_count, 4, 1, f) < 1 || fread (&row_count, 4, 1, f) < 1 || fread (&cell_count, 4, 1, f) < 1 || fread (&placement_mode, 4, 1, f) < 1 || fread (&selection_mode, 4, 1, f) < 1) { g_message ("Error reading tube data chunk"); return -1; } name[513] = 0; version = GUINT16_FROM_LE (version); params.step = GUINT32_FROM_LE (step_size); params.cols = GUINT32_FROM_LE (column_count); params.rows = GUINT32_FROM_LE (row_count); params.ncells = GUINT32_FROM_LE (cell_count); placement_mode = GUINT32_FROM_LE (placement_mode); selection_mode = GUINT32_FROM_LE (selection_mode); for (i = 1; i < params.cols; i++) gimp_image_add_vguide (image_ID, (ia->width * i)/params.cols); for (i = 1; i < params.rows; i++) gimp_image_add_hguide (image_ID, (ia->height * i)/params.rows); /* We use a parasite to pass in the tube (pipe) parameters in * case we will have any use of those, for instance in the gpb * plug-in that saves a GIMP image pipe. */ params.dim = 1; params.cellwidth = ia->width / params.cols; params.cellheight = ia->height / params.rows; params.placement = (placement_mode == tpmRandom ? "random" : (placement_mode == tpmConstant ? "constant" : "default")); params.rank[0] = params.ncells; params.selection[0] = (selection_mode == tsmRandom ? "random" : (selection_mode == tsmIncremental ? "incremental" : (selection_mode == tsmAngular ? "angular" : (selection_mode == tsmPressure ? "pressure" : (selection_mode == tsmVelocity ? "velocity" : "default"))))); parasite_text = gimp_pixpipe_params_build (¶ms); IFDBG(2) g_message ("parasite: %s", parasite_text); pipe_parasite = gimp_parasite_new ("gimp-brush-pipe-parameters", GIMP_PARASITE_PERSISTENT, strlen (parasite_text) + 1, parasite_text); gimp_image_attach_parasite (image_ID, pipe_parasite); gimp_parasite_free (pipe_parasite); g_free (parasite_text); return 0; } static const gchar * compression_name (gint compression) { switch (compression) { case PSP_COMP_NONE: return "no compression"; case PSP_COMP_RLE: return "RLE"; case PSP_COMP_LZ77: return "LZ77"; } g_assert_not_reached (); return NULL; } /* The main function for loading PSP-images */ static gint32 load_image (const gchar *filename, GError **error) { FILE *f; struct stat st; char buf[32]; PSPimage ia; guint32 block_init_len, block_total_len; long block_start; PSPBlockID id = -1; gint block_number; gint32 image_ID = -1; if (g_stat (filename, &st) == -1) return -1; f = g_fopen (filename, "rb"); if (f == NULL) { g_set_error (error, G_FILE_ERROR, g_file_error_from_errno (errno), _("Could not open '%s' for reading: %s"), gimp_filename_to_utf8 (filename), g_strerror (errno)); return -1; } /* Read the PSP File Header and determine file version */ if (fread (buf, 32, 1, f) < 1 || fread (&psp_ver_major, 2, 1, f) < 1 || fread (&psp_ver_minor, 2, 1, f) < 1) { g_message ("Error reading file header"); goto error; } if (memcmp (buf, "Paint Shop Pro Image File\n\032\0\0\0\0\0", 32) != 0) { g_message ("Incorrect file signature"); goto error; } psp_ver_major = GUINT16_FROM_LE (psp_ver_major); psp_ver_minor = GUINT16_FROM_LE (psp_ver_minor); /* I only have the documentation for file format version 3.0, * but PSP 6 writes version 4.0. Let's hope it's backwards compatible. * Earlier versions probably don't have all the fields I expect * so don't accept those. */ if (psp_ver_major < 3) { g_message ("Unsupported PSP file format version " "%d.%d, only knows 3.0 (and later?)", psp_ver_major, psp_ver_minor); goto error; } else if ((psp_ver_major == 3) || (psp_ver_major == 4) || (psp_ver_major == 5) || (psp_ver_major == 6)) ; /* OK */ else { g_message ("Unsupported PSP file format version %d.%d", psp_ver_major, psp_ver_minor); goto error; } /* Read all the blocks */ block_number = 0; IFDBG(3) g_message ("size = %d", (int)st.st_size); while (ftell (f) != st.st_size && (id = read_block_header (f, &block_init_len, &block_total_len)) != -1) { block_start = ftell (f); if (id == PSP_IMAGE_BLOCK) { if (block_number != 0) { g_message ("Duplicate General Image Attributes block"); goto error; } if (read_general_image_attribute_block (f, block_init_len, block_total_len, &ia) == -1) { goto error; } IFDBG(2) g_message ("%d dpi %dx%d %s", (int) ia.resolution, ia.width, ia.height, compression_name (ia.compression)); image_ID = gimp_image_new (ia.width, ia.height, ia.greyscale ? GIMP_GRAY : GIMP_RGB); if (image_ID == -1) { goto error; } gimp_image_set_filename (image_ID, filename); gimp_image_set_resolution (image_ID, ia.resolution, ia.resolution); } else { if (block_number == 0) { g_message ("Missing General Image Attributes block"); goto error; } switch (id) { case PSP_CREATOR_BLOCK: if (read_creator_block (f, image_ID, block_total_len, &ia) == -1) goto error; break; case PSP_COLOR_BLOCK: break; /* Not yet implemented */ case PSP_LAYER_START_BLOCK: if (read_layer_block (f, image_ID, block_total_len, &ia) == -1) goto error; break; case PSP_SELECTION_BLOCK: break; /* Not yet implemented */ case PSP_ALPHA_BANK_BLOCK: break; /* Not yet implemented */ case PSP_THUMBNAIL_BLOCK: break; /* No use for it */ case PSP_EXTENDED_DATA_BLOCK: break; /* Not yet implemented */ case PSP_TUBE_BLOCK: if (read_tube_block (f, image_ID, block_total_len, &ia) == -1) goto error; break; case PSP_COMPOSITE_IMAGE_BANK_BLOCK: break; /* Not yet implemented */ case PSP_LAYER_BLOCK: case PSP_CHANNEL_BLOCK: case PSP_ALPHA_CHANNEL_BLOCK: case PSP_ADJUSTMENT_EXTENSION_BLOCK: case PSP_VECTOR_EXTENSION_BLOCK: case PSP_SHAPE_BLOCK: case PSP_PAINTSTYLE_BLOCK: case PSP_COMPOSITE_ATTRIBUTES_BLOCK: case PSP_JPEG_BLOCK: g_message ("Sub-block %s should not occur " "at main level of file", block_name (id)); break; default: g_message ("Unrecognized block id %d", id); break; } } if (block_start + block_total_len >= st.st_size) break; if (try_fseek (f, block_start + block_total_len, SEEK_SET) < 0) goto error; block_number++; } if (id == -1) { error: fclose (f); if (image_ID != -1) gimp_image_delete (image_ID); return -1; } fclose (f); return image_ID; } static gint save_image (const gchar *filename, gint32 image_ID, gint32 drawable_ID, GError **error) { g_message ("Saving not implemented yet"); return FALSE; } static void run (const gchar *name, gint nparams, const GimpParam *param, gint *nreturn_vals, GimpParam **return_vals) { static GimpParam values[2]; GimpRunMode run_mode; GimpPDBStatusType status = GIMP_PDB_SUCCESS; gint32 image_ID; gint32 drawable_ID; GimpExportReturn export = GIMP_EXPORT_CANCEL; GError *error = NULL; INIT_I18N (); run_mode = param[0].data.d_int32; *nreturn_vals = 1; *return_vals = values; values[0].type = GIMP_PDB_STATUS; values[0].data.d_status = GIMP_PDB_EXECUTION_ERROR; if (strcmp (name, LOAD_PROC) == 0) { image_ID = load_image (param[1].data.d_string, &error); if (image_ID != -1) { *nreturn_vals = 2; values[1].type = GIMP_PDB_IMAGE; values[1].data.d_image = image_ID; } else { status = GIMP_PDB_EXECUTION_ERROR; } } else if (strcmp (name, SAVE_PROC) == 0) { image_ID = param[1].data.d_int32; drawable_ID = param[2].data.d_int32; /* eventually export the image */ switch (run_mode) { case GIMP_RUN_INTERACTIVE: case GIMP_RUN_WITH_LAST_VALS: gimp_ui_init (PLUG_IN_BINARY, FALSE); export = gimp_export_image (&image_ID, &drawable_ID, NULL, GIMP_EXPORT_CAN_HANDLE_RGB | GIMP_EXPORT_CAN_HANDLE_GRAY | GIMP_EXPORT_CAN_HANDLE_INDEXED | GIMP_EXPORT_CAN_HANDLE_ALPHA | GIMP_EXPORT_CAN_HANDLE_LAYERS); if (export == GIMP_EXPORT_CANCEL) { values[0].data.d_status = GIMP_PDB_CANCEL; return; } break; default: break; } switch (run_mode) { case GIMP_RUN_INTERACTIVE: /* Possibly retrieve data */ gimp_get_data (SAVE_PROC, &psvals); /* First acquire information with a dialog */ if (! save_dialog ()) status = GIMP_PDB_CANCEL; break; case GIMP_RUN_NONINTERACTIVE: /* Make sure all the arguments are there! */ if (nparams != 6) { status = GIMP_PDB_CALLING_ERROR; } else { psvals.compression = (param[5].data.d_int32) ? TRUE : FALSE; if (param[5].data.d_int32 < 0 || param[5].data.d_int32 > PSP_COMP_LZ77) status = GIMP_PDB_CALLING_ERROR; } case GIMP_RUN_WITH_LAST_VALS: gimp_get_data (SAVE_PROC, &psvals); break; default: break; } if (status == GIMP_PDB_SUCCESS) { if (save_image (param[3].data.d_string, image_ID, drawable_ID, &error)) { gimp_set_data (SAVE_PROC, &psvals, sizeof (PSPSaveVals)); } else { status = GIMP_PDB_EXECUTION_ERROR; } } if (export == GIMP_EXPORT_EXPORT) gimp_image_delete (image_ID); } else { status = GIMP_PDB_CALLING_ERROR; } if (status != GIMP_PDB_SUCCESS && error) { *nreturn_vals = 2; values[1].type = GIMP_PDB_STRING; values[1].data.d_string = error->message; } values[0].data.d_status = status; }