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gimp/plug-ins/file-psd/psd-layer-res-load.c

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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/>.
*/
/* ----- Known Layer Resource Block Types -----
All layer resources not otherwise handled, including unknown types
are dropped with a warning.
* Adjustment layer IDs *
PSD_LADJ_LEVEL "levl" Drop Layer * Adjustment layer - levels (PS4) *
PSD_LADJ_CURVE "curv" Drop Layer * Adjustment layer - curves (PS4) *
PSD_LADJ_BRIGHTNESS "brit" Drop Layer * Adjustment layer - brightness contrast (PS4) *
PSD_LADJ_BALANCE "blnc" Drop Layer * Adjustment layer - color balance (PS4) *
PSD_LADJ_BLACK_WHITE "blwh" Drop Layer * Adjustment layer - black & white (PS10) *
PSD_LADJ_HUE "hue " Drop Layer * Adjustment layer - old hue saturation (PS4) *
PSD_LADJ_HUE2 "hue2" Drop Layer * Adjustment layer - hue saturation (PS5) *
PSD_LADJ_SELECTIVE "selc" Drop Layer * Adjustment layer - selective color (PS4) *
PSD_LADJ_MIXER "mixr" Drop Layer * Adjustment layer - channel mixer (PS9) *
PSD_LADJ_GRAD_MAP "grdm" Drop Layer * Adjustment layer - gradient map (PS9) *
PSD_LADJ_PHOTO_FILT "phfl" Drop Layer * Adjustment layer - photo filter (PS9) *
PSD_LADJ_EXPOSURE "expA" Drop Layer * Adjustment layer - exposure (PS10) *
PSD_LADJ_INVERT "nvrt" Drop Layer * Adjustment layer - invert (PS4) *
PSD_LADJ_THRESHOLD "thrs" Drop Layer * Adjustment layer - threshold (PS4) *
PSD_LADJ_POSTERIZE "post" Drop Layer * Adjustment layer - posterize (PS4) *
PSD_LADJ_VIBRANCE "vibA" - * Adjustment layer - vibrance (PS10) *
PSD_LADJ_COLOR_LOOKUP "clrL" - * Adjustment layer - color lookup (PS13) *
* Fill Layer IDs *
PSD_LFIL_SOLID "SoCo" - * Solid color sheet setting (PS6) *
PSD_LFIL_PATTERN "PtFl" - * Pattern fill setting (PS6) *
PSD_LFIL_GRADIENT "GdFl" - * Gradient fill setting (PS6) *
* Effects Layer IDs *
PSD_LFX_FX "lrFX" - * Effects layer info (PS5) *
PSD_LFX_FX2 "lfx2" - * Object based effects layer info (PS6) *
* Type Tool Layers *
PSD_LTYP_TYPE "tySh" - * Type tool layer (PS5) *
PSD_LTYP_TYPE2 "TySh" - * Type tool object setting (PS6) *
* Layer Properties *
PSD_LPRP_UNICODE "luni" Loaded * Unicode layer name (PS5) *
PSD_LPRP_SOURCE "lnsr" Loaded * Layer name source setting (PS6) *
PSD_LPRP_ID "lyid" Loaded * Layer ID (PS5) *
PSD_LPRP_BLEND_CLIP "clbl" - * Blend clipping elements (PS6) *
PSD_LPRP_BLEND_INT "infx" - * Blend interior elements (PS6) *
PSD_LPRP_KNOCKOUT "knko" - * Knockout setting (PS6) *
PSD_LPRP_PROTECT "lspf" - * Protected setting (PS6) *
PSD_LPRP_COLOR "lclr" - * Sheet color setting (PS6) *
PSD_LPRP_REF_POINT "fxrp" - * Reference point (PS6) *
PSD_LPRP_VERSION "lyvr" Loaded * Layer version (PS7) *
* Vector mask *
PSD_LMSK_VMASK "vmsk" - * Vector mask setting (PS6) *
* Parasites *
PSD_LPAR_ANNOTATE "Anno" - * Annotation (PS6) *
* Other *
PSD_LOTH_PATTERN "Patt" - * Patterns (PS6) *
PSD_LOTH_GRADIENT "grdm" - * Gradient settings (PS6) *
PSD_LOTH_SECTION "lsct" Loaded * Section divider setting (PS6) (Layer Groups) *
PSD_LOTH_SECTION2 "lsdk" Loaded * Nested section divider setting (CS5) (Layer Groups) *
PSD_LOTH_RESTRICT "brst" - * Channel blending restriction setting (PS6) *
PSD_LOTH_FOREIGN_FX "ffxi" - * Foreign effect ID (PS6) *
PSD_LOTH_PATT_DATA "shpa" - * Pattern data (PS6) *
PSD_LOTH_META_DATA "shmd" - * Meta data setting (PS6) *
PSD_LOTH_LAYER_DATA "layr" - * Layer data (PS6) *
PSD_LOTH_CONTENT_GEN "CgEd" - * Content generator extra data (PS12) *
PSD_LOTH_TEXT_ENGINE "Txt2" - * Text engine data (PS10) *
PSD_LOTH_PATH_NAME "pths" - * Unicode path name (PS13) *
PSD_LOTH_ANIMATION_FX "anFX" - * Animation effects (PS13) *
PSD_LOTH_FILTER_MASK "FMsk" - * Filter mask (PS10) *
PSD_LOTH_VECTOR_STROKE "vscg" - * Vector stroke data (PS13) *
PSD_LOTH_ALIGN_RENDER "sn2P" - * Aligned rendering flag (?) *
PSD_LOTH_USER_MASK "LMsk" - * User mask (?) *
* Effects layer resource IDs *
PSD_LFX_COMMON "cmnS" - * Effects layer - common state (PS5) *
PSD_LFX_DROP_SDW "dsdw" - * Effects layer - drop shadow (PS5) *
PSD_LFX_INNER_SDW "isdw" - * Effects layer - inner shadow (PS5) *
PSD_LFX_OUTER_GLW "oglw" - * Effects layer - outer glow (PS5) *
PSD_LFX_INNER_GLW "iglw" - * Effects layer - inner glow (PS5) *
PSD_LFX_BEVEL "bevl" - * Effects layer - bevel (PS5) *
* New stuff temporarily until I can get them sorted out *
* Placed Layer *
PSD_LPL_PLACE_LAYER "PlLd" - * Placed layer (?) (based on PSD files, not specification) *
PSD_LPL_PLACE_LAYER_NEW "SoLd" - * Placed layer (PS10) *
PSD_SMART_OBJECT_LAYER "SoLE" - * Smart Object Layer (CC2015) *
* Linked Layer *
PSD_LLL_LINKED_LAYER "lnkD" - * Linked layer (?) *
PSD_LLL_LINKED_LAYER_2 "lnk2" - * Linked layer 2nd key *
PSD_LLL_LINKED_LAYER_3 "lnk3" - * Linked layer 3rd key *
PSD_LLL_LINKED_LAYER_EXT "lnkE" - * Linked layer external *
* Merged Transparency *
PSD_LMT_MERGE_TRANS "Mtrn" - * Merged transparency save flag (?) *
PSD_LMT_MERGE_TRANS_16 "Mt16" - * Merged transparency save flag 2 *
PSD_LMT_MERGE_TRANS_32 "Mt32" - * Merged transparency save flag 3 *
* Filter Effects *
PSD_LFFX_FILTER_FX "FXid" - * Filter effects (?) *
PSD_LFFX_FILTER_FX_2 "FEid" - * Filter effects 2 *
*/
#include "config.h"
#include <string.h>
#include <errno.h>
#include <glib/gstdio.h>
#include <libgimp/gimp.h>
#include "psd.h"
#include "psd-util.h"
#include "psd-layer-res-load.h"
#include "libgimp/stdplugins-intl.h"
/* Local function prototypes */
static gint load_resource_unknown (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error);
static gint load_resource_ladj (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error);
static gint load_resource_lfil (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error);
static gint load_resource_lfx (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error);
static gint load_resource_ltyp (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error);
static gint load_resource_luni (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error);
static gint load_resource_lyid (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error);
static gint load_resource_lclr (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error);
static gint load_resource_lsct (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error);
static gint load_resource_lrfx (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error);
static gint load_resource_lyvr (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error);
static gint load_resource_lnsr (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error);
/* Public Functions */
/* Returns < 0 for errors, else returns the size of the resource header
* which should be either 4 or 8. */
gint
get_layer_resource_header (PSDlayerres *res_a,
guint16 psd_version,
GInputStream *input,
GError **error)
{
gint block_len_size = 4;
res_a->ibm_pc_format = FALSE;
if (psd_read (input, res_a->sig, 4, error) < 4 ||
psd_read (input, res_a->key, 4, error) < 4)
{
psd_set_error (error);
return -1;
}
else if (memcmp (res_a->sig, "8BIM", 4) != 0 &&
memcmp (res_a->sig, "MIB8", 4) != 0 &&
memcmp (res_a->sig, "8B64", 4) != 0)
{
IFDBG(1) g_debug ("Unknown layer resource signature %.4s", res_a->sig);
}
if (memcmp (res_a->sig, "MIB8", 4) == 0)
{
gchar ibm_sig[4];
gchar ibm_key[4];
res_a->ibm_pc_format = TRUE;
for (gint i = 0; i < 4; i++)
{
ibm_sig[i] = res_a->sig[3 - i];
ibm_key[i] = res_a->key[3 - i];
}
for (gint i = 0; i < 4; i++)
{
res_a->sig[i] = ibm_sig[i];
res_a->key[i] = ibm_key[i];
}
}
if (psd_version == 1)
block_len_size = 4;
else
{
/* For PSB only certain block resources have a double sized length
* so we need to check which resource it is first before we can
* read the block length.
* According to the docs: LMsk, Lr16, Lr32, Layr, Mt16, Mt32, Mtrn,
* Alph, FMsk, lnk2, FEid, FXid, PxSD have an 8 byte length. */
if (memcmp (res_a->key, "LMsk", 4) == 0 ||
memcmp (res_a->key, "Lr16", 4) == 0 ||
memcmp (res_a->key, "Lr32", 4) == 0 ||
memcmp (res_a->key, "Layr", 4) == 0 ||
memcmp (res_a->key, "Mt16", 4) == 0 ||
memcmp (res_a->key, "Mt32", 4) == 0 ||
memcmp (res_a->key, "Mtrn", 4) == 0 ||
memcmp (res_a->key, "Alph", 4) == 0 ||
memcmp (res_a->key, "FMsk", 4) == 0 ||
memcmp (res_a->key, "lnk2", 4) == 0 ||
memcmp (res_a->key, "FEid", 4) == 0 ||
memcmp (res_a->key, "FXid", 4) == 0 ||
memcmp (res_a->key, "PxSD", 4) == 0 ||
/* Apparently also using 8 bytes in size but not mentioned in specs: */
memcmp (res_a->key, "lnkE", 4) == 0 ||
memcmp (res_a->key, "pths", 4) == 0
)
block_len_size = 8;
else
block_len_size = 4;
IFDBG(3) g_debug ("PSB: Using block_len_size %d", block_len_size);
}
if (psd_read (input, &res_a->data_len, block_len_size, error) < block_len_size)
{
psd_set_error (error);
return -1;
}
if (! res_a->ibm_pc_format)
{
if (block_len_size == 4)
res_a->data_len = GUINT32_FROM_BE (res_a->data_len);
else
res_a->data_len = GUINT64_FROM_BE (res_a->data_len);
}
else
{
if (block_len_size == 4)
res_a->data_len = GUINT32_FROM_LE (res_a->data_len);
else
res_a->data_len = GUINT64_FROM_LE (res_a->data_len);
}
res_a->data_start = PSD_TELL (input);
IFDBG(2) g_debug ("Sig: %.4s, key: %.4s, start: %" G_GOFFSET_FORMAT ", len: %" G_GOFFSET_FORMAT,
res_a->sig, res_a->key, res_a->data_start, res_a->data_len);
return block_len_size + 8;
}
gint
load_layer_resource (PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error)
{
/* Set file position to start of layer resource data block */
if (! psd_seek (input, res_a->data_start, G_SEEK_SET, error))
{
psd_set_error (error);
return -1;
}
/* Process layer resource blocks */
if (memcmp (res_a->key, PSD_LADJ_LEVEL, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_CURVE, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_BRIGHTNESS, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_BALANCE, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_BLACK_WHITE, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_HUE, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_HUE2, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_SELECTIVE, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_MIXER, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_GRAD_MAP, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_PHOTO_FILT, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_EXPOSURE, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_THRESHOLD, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_INVERT, 4) == 0
|| memcmp (res_a->key, PSD_LADJ_POSTERIZE, 4) == 0)
{
if (lyr_a)
{
lyr_a->unsupported_features->adjustment_layer = TRUE;
lyr_a->unsupported_features->show_gui = TRUE;
}
load_resource_ladj (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_LFIL_SOLID, 4) == 0
|| memcmp (res_a->key, PSD_LFIL_PATTERN, 4) == 0
|| memcmp (res_a->key, PSD_LFIL_GRADIENT, 4) == 0)
{
if (lyr_a)
{
lyr_a->unsupported_features->fill_layer = TRUE;
lyr_a->unsupported_features->show_gui = TRUE;
}
load_resource_lfil (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_LFX_FX, 4) == 0
|| memcmp (res_a->key, PSD_LFX_FX2, 4) == 0)
{
if (lyr_a)
{
lyr_a->unsupported_features->layer_effect = TRUE;
lyr_a->unsupported_features->show_gui = TRUE;
}
load_resource_lfx (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_LTYP_TYPE, 4) == 0
|| memcmp (res_a->key, PSD_LTYP_TYPE2, 4) == 0)
{
if (lyr_a)
{
lyr_a->unsupported_features->text_layer = TRUE;
lyr_a->unsupported_features->show_gui = TRUE;
}
load_resource_ltyp (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_LPRP_UNICODE, 4) == 0)
{
load_resource_luni (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_LPRP_ID, 4) == 0)
{
load_resource_lyid (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_LPRP_COLOR, 4) == 0)
{
load_resource_lclr (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_LOTH_SECTION, 4) == 0
|| memcmp (res_a->key, PSD_LOTH_SECTION2, 4) == 0) /* bug #789981 */
{
load_resource_lsct (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_LFX_FX, 4) == 0)
{
load_resource_lrfx (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_LPRP_VERSION, 4) == 0)
{
load_resource_lyvr (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_LPRP_SOURCE, 4) == 0)
{
load_resource_lnsr (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_LOTH_VECTOR_STROKE, 4) == 0)
{
if (lyr_a)
{
lyr_a->unsupported_features->stroke = TRUE;
lyr_a->unsupported_features->show_gui = TRUE;
}
load_resource_unknown (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_LMSK_VMASK, 4) == 0)
{
if (lyr_a)
{
lyr_a->unsupported_features->vector_mask = TRUE;
lyr_a->unsupported_features->show_gui = TRUE;
}
load_resource_unknown (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_SMART_OBJECT_LAYER, 4) == 0
|| memcmp (res_a->key, PSD_LPL_PLACE_LAYER, 4) == 0
|| memcmp (res_a->key, PSD_LPL_PLACE_LAYER_NEW, 4) == 0)
{
if (lyr_a)
{
lyr_a->unsupported_features->smart_object = TRUE;
lyr_a->unsupported_features->show_gui = TRUE;
}
load_resource_unknown (res_a, lyr_a, input, error);
}
else if (memcmp (res_a->key, PSD_LLL_LINKED_LAYER, 4) == 0
|| memcmp (res_a->key, PSD_LLL_LINKED_LAYER_2, 4) == 0
|| memcmp (res_a->key, PSD_LLL_LINKED_LAYER_3, 4) == 0
|| memcmp (res_a->key, PSD_LLL_LINKED_LAYER_EXT, 4) == 0)
{
if (lyr_a)
{
lyr_a->unsupported_features->linked_layer = TRUE;
lyr_a->unsupported_features->show_gui = TRUE;
}
load_resource_unknown (res_a, lyr_a, input, error);
}
else
{
load_resource_unknown (res_a, lyr_a, input, error);
}
if (error && *error)
return -1;
/* Set file position to end of layer resource block */
if (! psd_seek (input, res_a->data_start + res_a->data_len, G_SEEK_SET, error))
{
psd_set_error (error);
return -1;
}
return 0;
}
/* Private Functions */
static gint
load_resource_unknown (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error)
{
IFDBG(2) g_debug ("Process unknown layer resource block: %.4s", res_a->key);
return 0;
}
static gint
load_resource_ladj (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error)
{
/* Load adjustment layer */
static gboolean msg_flag = FALSE;
IFDBG(2) g_debug ("Process layer resource block %.4s: Adjustment layer", res_a->key);
lyr_a->drop = TRUE;
if (! msg_flag && CONVERSION_WARNINGS)
{
g_message ("Warning:\n"
"The image file contains adjustment layers. "
"These are not supported by the GIMP and will "
"be dropped.");
msg_flag = TRUE;
}
return 0;
}
static gint
load_resource_lfil (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error)
{
/* Load fill layer */
static gboolean msg_flag = FALSE;
IFDBG(2) g_debug ("Process layer resource block %.4s: Fill layer", res_a->key);
if (! msg_flag && CONVERSION_WARNINGS)
{
g_message ("Warning:\n"
"The image file contains fill layers. "
"These are not supported by the GIMP and will "
"be rasterized.");
msg_flag = TRUE;
}
return 0;
}
static gint
load_resource_lfx (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error)
{
/* Load layer effects */
static gboolean msg_flag = FALSE;
IFDBG(2) g_debug ("Process layer resource block %.4s: Layer effects", res_a->key);
if (! msg_flag && CONVERSION_WARNINGS)
{
g_message ("Warning:\n"
"The image file contains layer effects. "
"These are not supported by the GIMP and will "
"be dropped.");
msg_flag = TRUE;
}
return 0;
}
static gint
load_resource_ltyp (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error)
{
/* Load type tool layer */
gint16 version;
gint16 text_desc_vers;
gint32 desc_version;
gint32 read_len;
gint32 write_len;
guint64 t_xx;
guint64 t_xy;
guint64 t_yx;
guint64 t_yy;
guint64 t_tx;
guint64 t_ty;
gchar *classID;
static gboolean msg_flag = FALSE;
IFDBG(2) g_debug ("Process layer resource block %.4s: Type tool layer", res_a->key);
if (! msg_flag && CONVERSION_WARNINGS)
{
g_message ("Warning:\n"
"The image file contains type tool layers. "
"These are not supported by the GIMP and will "
"be dropped.");
msg_flag = TRUE;
}
/* New style type tool layers (ps6) */
if (memcmp (res_a->key, PSD_LTYP_TYPE2, 4) == 0)
{
if (psd_read (input, &version, 2, error) < 2 ||
psd_read (input, &t_xx, 8, error) < 8 ||
psd_read (input, &t_xy, 8, error) < 8 ||
psd_read (input, &t_yx, 8, error) < 8 ||
psd_read (input, &t_yy, 8, error) < 8 ||
psd_read (input, &t_tx, 8, error) < 8 ||
psd_read (input, &t_ty, 8, error) < 8 ||
psd_read (input, &text_desc_vers, 2, error) < 2 ||
psd_read (input, &desc_version, 4, error) < 4)
{
psd_set_error (error);
return -1;
}
version = GINT16_FROM_BE (version);
text_desc_vers = GINT16_FROM_BE (text_desc_vers);
desc_version = GINT32_FROM_BE (desc_version);
// t_xx = GUINT64_FROM_BE (t_xx);
// t_xy = GUINT64_FROM_BE (t_xy);
// t_yx = GUINT64_FROM_BE (t_yx);
// t_yy = GUINT64_FROM_BE (t_yy);
// t_tx = GUINT64_FROM_BE (t_tx);
// t_ty = GUINT64_FROM_BE (t_ty);
lyr_a->text.xx = t_xx >> 11;
lyr_a->text.xy = t_xy >> 11;
lyr_a->text.yx = t_yx >> 11;
lyr_a->text.yy = t_yy >> 11;
lyr_a->text.tx = t_tx >> 11;
lyr_a->text.ty = t_ty >> 11;
IFDBG(2) g_debug ("Version: %d, Text desc. vers.: %d, Desc. vers.: %d",
version, text_desc_vers, desc_version);
IFDBG(2) g_debug ("Transform\n\txx: %f\n\txy: %f\n\tyx: %f"
"\n\tyy: %f\n\ttx: %f\n\tty: %f",
lyr_a->text.xx, lyr_a->text.xy, lyr_a->text.yx,
lyr_a->text.yy, lyr_a->text.tx, lyr_a->text.ty);
classID = fread_unicode_string (&read_len, &write_len, 4,
res_a->ibm_pc_format, input, error);
IFDBG(2) g_debug ("Unicode name: %s", classID);
}
return 0;
}
static gint
load_resource_luni (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error)
{
/* Load layer name in unicode (length padded to multiple of 4 bytes) */
gint32 read_len;
gint32 write_len;
IFDBG(2) g_debug ("Process layer resource block luni: Unicode Name");
if (lyr_a->name)
g_free (lyr_a->name);
lyr_a->name = fread_unicode_string (&read_len, &write_len, 4,
res_a->ibm_pc_format, input, error);
if (*error)
return -1;
IFDBG(3) g_debug ("Unicode name: %s", lyr_a->name);
return 0;
}
static gint
load_resource_lyid (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error)
{
/* Load layer id (tattoo) */
IFDBG(2) g_debug ("Process layer resource block lyid: Layer ID");
if (psd_read (input, &lyr_a->id, 4, error) < 4)
{
psd_set_error (error);
return -1;
}
lyr_a->id = GUINT32_FROM_BE (lyr_a->id);
IFDBG(3) g_debug ("Layer id: %i", lyr_a->id);
return 0;
}
static gint
load_resource_lclr (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error)
{
/* Load layer sheet color code */
IFDBG(2) g_debug ("Process layer resource block %.4s: Sheet color",
res_a->key);
if (psd_read (input, lyr_a->color_tag, 8, error) < 8)
{
psd_set_error (error);
return -1;
}
/* Photoshop only uses color_tag[0] to store a color code */
lyr_a->color_tag[0] = GUINT16_FROM_BE(lyr_a->color_tag[0]);
IFDBG(3) g_debug ("Layer sheet color: %i", lyr_a->color_tag[0]);
return 0;
}
static gint
load_resource_lsct (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error)
{
/* Load layer group & type information
* Type 0: not a group
* Type 1: Open folder
* Type 2: Closed folder
* Type 3: End of most recent group */
guint32 type;
IFDBG(2) g_debug ("Process layer resource block %.4s: Section divider", res_a->key);
if (psd_read (input, &type, 4, error) < 4)
{
psd_set_error (error);
return -1;
}
type = GUINT32_FROM_BE (type);
IFDBG(3) g_debug ("Section divider type: %i", type);
lyr_a->group_type = type;
if (res_a->data_len >= 12)
{
gchar signature[4];
gchar blend_mode[4];
if (psd_read (input, signature, 4, error) < 4 ||
psd_read (input, blend_mode, 4, error) < 4)
{
psd_set_error (error);
return -1;
}
/* Not sure if 8B64 is possible here but it won't hurt to check. */
if (memcmp (signature, "8BIM", 4) == 0 ||
memcmp (signature, "8B64", 4) == 0)
{
memcpy (lyr_a->blend_mode, blend_mode, 4);
IFDBG(3) g_debug ("Section divider layer mode sig: %.4s, blend mode: %.4s",
signature, blend_mode);
}
else
{
IFDBG(1) g_debug ("Incorrect layer mode signature %.4s", signature);
}
}
return 0;
}
static gint
load_resource_lrfx (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error)
{
gint16 version;
gint16 count;
gchar signature[4];
gchar effectname[4];
gint i;
IFDBG(2) g_debug ("Process layer resource block %.4s: Layer effects", res_a->key);
if (psd_read (input, &version, 2, error) < 2 ||
psd_read (input, &count, 2, error) < 2)
{
psd_set_error (error);
return -1;
}
for (i = 0; i < count; i++)
{
if (psd_read (input, &signature, 4, error) < 4 ||
psd_read (input, &effectname, 4, error) < 4)
{
psd_set_error (error);
return -1;
}
/* Not sure if 8B64 is possible here but it won't hurt to check. */
if (memcmp (signature, "8BIM", 4) != 0 &&
memcmp (signature, "8B64", 4) != 0)
{
IFDBG(1) g_debug ("Unknown layer resource signature %.4s", signature);
}
else
{
if (memcmp (effectname, "cmnS", 4) == 0)
{
gint32 size;
gint32 ver;
gchar visible;
gint16 unused;
if (psd_read (input, &size, 4, error) < 4 ||
psd_read (input, &ver, 4, error) < 4 ||
psd_read (input, &visible, 1, error) < 1 ||
psd_read (input, &unused, 2, error) < 2)
{
psd_set_error (error);
return -1;
}
}
else if (memcmp (effectname, "dsdw", 4) == 0
|| memcmp (effectname, "isdw", 4) == 0)
{
gint32 size;
gint32 ver;
gint32 blur;
gint32 intensity;
gint32 angle;
gint32 distance;
gint16 color[5];
gint32 blendsig;
gint32 effect;
gchar effecton;
gchar anglefx;
gchar opacity;
gint16 natcolor[5];
if (psd_read (input, &size, 4, error) < 4 ||
psd_read (input, &ver, 4, error) < 4 ||
psd_read (input, &blur, 4, error) < 4 ||
psd_read (input, &intensity, 4, error) < 4 ||
psd_read (input, &angle, 4, error) < 4 ||
psd_read (input, &distance, 4, error) < 4 ||
psd_read (input, &color[0], 2, error) < 2 ||
psd_read (input, &color[1], 2, error) < 2 ||
psd_read (input, &color[2], 2, error) < 2 ||
psd_read (input, &color[3], 2, error) < 2 ||
psd_read (input, &color[4], 2, error) < 2 ||
psd_read (input, &blendsig, 4, error) < 4 ||
psd_read (input, &effect, 4, error) < 4 ||
psd_read (input, &effecton, 1, error) < 1 ||
psd_read (input, &anglefx, 1, error) < 1 ||
psd_read (input, &opacity, 1, error) < 1 ||
psd_read (input, &natcolor[0], 2, error) < 2 ||
psd_read (input, &natcolor[1], 2, error) < 2 ||
psd_read (input, &natcolor[2], 2, error) < 2 ||
psd_read (input, &natcolor[3], 2, error) < 2 ||
psd_read (input, &natcolor[4], 2, error) < 2)
{
psd_set_error (error);
return -1;
}
}
else if (memcmp (effectname, "oglw", 4) == 0)
{
gint32 size;
gint32 ver;
gint32 blur;
gint32 intensity;
gint16 color[5];
gint32 blendsig;
gint32 effect;
gchar effecton;
gchar opacity;
gint16 natcolor[5];
if (psd_read (input, &size, 4, error) < 4 ||
psd_read (input, &ver, 4, error) < 4 ||
psd_read (input, &blur, 4, error) < 4 ||
psd_read (input, &intensity, 4, error) < 4 ||
psd_read (input, &color[0], 2, error) < 2 ||
psd_read (input, &color[1], 2, error) < 2 ||
psd_read (input, &color[2], 2, error) < 2 ||
psd_read (input, &color[3], 2, error) < 2 ||
psd_read (input, &color[4], 2, error) < 2 ||
psd_read (input, &blendsig, 4, error) < 4 ||
psd_read (input, &effect, 4, error) < 4 ||
psd_read (input, &effecton, 1, error) < 1 ||
psd_read (input, &opacity, 1, error) < 1)
{
psd_set_error (error);
return -1;
}
if (size == 42)
{
if (psd_read (input, &natcolor[0], 2, error) < 2 ||
psd_read (input, &natcolor[1], 2, error) < 2 ||
psd_read (input, &natcolor[2], 2, error) < 2 ||
psd_read (input, &natcolor[3], 2, error) < 2 ||
psd_read (input, &natcolor[4], 2, error) < 2)
{
psd_set_error (error);
return -1;
}
}
}
else if (memcmp (effectname, "iglw", 4) == 0)
{
gint32 size;
gint32 ver;
gint32 blur;
gint32 intensity;
gint32 angle;
gint32 distance;
gint16 color[5];
gint32 blendsig;
gint32 effect;
gchar effecton;
gchar anglefx;
gchar opacity;
gchar invert;
gint16 natcolor[5];
if (psd_read (input, &size, 4, error) < 4 ||
psd_read (input, &ver, 4, error) < 4 ||
psd_read (input, &blur, 4, error) < 4 ||
psd_read (input, &intensity, 4, error) < 4 ||
psd_read (input, &angle, 4, error) < 4 ||
psd_read (input, &distance, 4, error) < 4 ||
psd_read (input, &color[0], 2, error) < 2 ||
psd_read (input, &color[1], 2, error) < 2 ||
psd_read (input, &color[2], 2, error) < 2 ||
psd_read (input, &color[3], 2, error) < 2 ||
psd_read (input, &color[4], 2, error) < 2 ||
psd_read (input, &blendsig, 4, error) < 4 ||
psd_read (input, &effect, 4, error) < 4 ||
psd_read (input, &effecton, 1, error) < 1 ||
psd_read (input, &anglefx, 1, error) < 1 ||
psd_read (input, &opacity, 1, error) < 1 ||
psd_read (input, &natcolor[0], 2, error) < 2 ||
psd_read (input, &natcolor[1], 2, error) < 2 ||
psd_read (input, &natcolor[2], 2, error) < 2 ||
psd_read (input, &natcolor[3], 2, error) < 2 ||
psd_read (input, &natcolor[4], 2, error) < 2)
{
psd_set_error (error);
return -1;
}
if (size == 43)
{
if (psd_read (input, &invert, 1, error) < 1 ||
psd_read (input, &natcolor[0], 2, error) < 2 ||
psd_read (input, &natcolor[0], 2, error) < 2 ||
psd_read (input, &natcolor[1], 2, error) < 2 ||
psd_read (input, &natcolor[2], 2, error) < 2 ||
psd_read (input, &natcolor[3], 2, error) < 2 ||
psd_read (input, &natcolor[4], 2, error) < 2)
{
psd_set_error (error);
return -1;
}
}
}
else if (memcmp (effectname, "bevl", 4) == 0)
{
gint32 size;
gint32 ver;
gint32 angle;
gint32 strength;
gint32 blur;
gint32 highlightsig;
gint32 highlighteffect;
gint32 shadowsig;
gint32 shadoweffect;
gint16 highlightcolor[5];
gint16 shadowcolor[5];
gchar style;
gchar highlightopacity;
gchar shadowopacity;
gchar enabled;
gchar global;
gchar direction;
gint16 highlightnatcolor[5];
gint16 shadownatcolor[5];
if (psd_read (input, &size, 4, error) < 4 ||
psd_read (input, &ver, 4, error) < 4 ||
psd_read (input, &angle, 4, error) < 4 ||
psd_read (input, &strength, 4, error) < 4 ||
psd_read (input, &blur, 4, error) < 4 ||
psd_read (input, &highlightsig, 4, error) < 4 ||
psd_read (input, &highlighteffect, 4, error) < 4 ||
psd_read (input, &shadowsig, 4, error) < 4 ||
psd_read (input, &highlightcolor[0], 2, error) < 2 ||
psd_read (input, &shadoweffect, 4, error) < 4 ||
psd_read (input, &highlightcolor[1], 2, error) < 2 ||
psd_read (input, &highlightcolor[2], 2, error) < 2 ||
psd_read (input, &highlightcolor[3], 2, error) < 2 ||
psd_read (input, &highlightcolor[4], 2, error) < 2 ||
psd_read (input, &shadowcolor[0], 2, error) < 2 ||
psd_read (input, &shadowcolor[1], 2, error) < 2 ||
psd_read (input, &shadowcolor[2], 2, error) < 2 ||
psd_read (input, &shadowcolor[3], 2, error) < 2 ||
psd_read (input, &shadowcolor[4], 2, error) < 2 ||
psd_read (input, &style, 1, error) < 1 ||
psd_read (input, &highlightopacity, 1, error) < 1 ||
psd_read (input, &shadowopacity, 1, error) < 1 ||
psd_read (input, &enabled, 1, error) < 1 ||
psd_read (input, &global, 1, error) < 1 ||
psd_read (input, &direction, 1, error) < 1)
{
psd_set_error (error);
return -1;
}
if (size == 78)
{
if (psd_read (input, &highlightnatcolor[0], 2, error) < 2 ||
psd_read (input, &highlightnatcolor[0], 2, error) < 2 ||
psd_read (input, &highlightnatcolor[1], 2, error) < 2 ||
psd_read (input, &highlightnatcolor[2], 2, error) < 2 ||
psd_read (input, &highlightnatcolor[3], 2, error) < 2 ||
psd_read (input, &highlightnatcolor[4], 2, error) < 2 ||
psd_read (input, &shadownatcolor[0], 2, error) < 2 ||
psd_read (input, &shadownatcolor[0], 2, error) < 2 ||
psd_read (input, &shadownatcolor[1], 2, error) < 2 ||
psd_read (input, &shadownatcolor[2], 2, error) < 2 ||
psd_read (input, &shadownatcolor[3], 2, error) < 2 ||
psd_read (input, &shadownatcolor[4], 2, error) < 2)
{
psd_set_error (error);
return -1;
}
}
}
else if (memcmp (effectname, "sofi", 4) == 0)
{
gint32 size;
gint32 ver;
gint32 key;
gint16 color[5];
gchar opacity;
gchar enabled;
gint16 natcolor[5];
if (psd_read (input, &size, 4, error) < 4 ||
psd_read (input, &ver, 4, error) < 4 ||
psd_read (input, &key, 4, error) < 4 ||
psd_read (input, &color[0], 2, error) < 2 ||
psd_read (input, &color[1], 2, error) < 2 ||
psd_read (input, &color[2], 2, error) < 2 ||
psd_read (input, &color[3], 2, error) < 2 ||
psd_read (input, &color[4], 2, error) < 2 ||
psd_read (input, &opacity, 1, error) < 1 ||
psd_read (input, &enabled, 1, error) < 1 ||
psd_read (input, &natcolor[0], 2, error) < 2 ||
psd_read (input, &natcolor[1], 2, error) < 2 ||
psd_read (input, &natcolor[2], 2, error) < 2 ||
psd_read (input, &natcolor[3], 2, error) < 2 ||
psd_read (input, &natcolor[4], 2, error) < 2)
{
psd_set_error (error);
return -1;
}
}
else
{
IFDBG(1) g_debug ("Unknown layer effect signature %.4s", effectname);
}
}
}
return 0;
}
static gint
load_resource_lyvr (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error)
{
gint32 version;
IFDBG(2) g_debug ("Process layer resource block %.4s: layer version",
res_a->key);
if (psd_read (input, &version, 4, error) < 4)
{
psd_set_error (error);
return -1;
}
version = GINT32_FROM_BE(version);
/* minimum value is 70 according to specs but there's no reason to
* stop the loading
*/
if (version < 70)
{
g_message ("Invalid version layer");
}
return 0;
}
static gint
load_resource_lnsr (const PSDlayerres *res_a,
PSDlayer *lyr_a,
GInputStream *input,
GError **error)
{
gchar layername[4];
IFDBG(2) g_debug ("Process layer resource block %.4s: layer source name",
res_a->key);
if (psd_read (input, &layername, 4, error) < 4)
{
psd_set_error (error);
return -1;
}
/* nowadays psd files, layer name are encoded in unicode, cf "luni"
* moreover lnsr info is encoded in MacRoman, see
* https://bugzilla.gnome.org/show_bug.cgi?id=753986#c4
*/
return 0;
}
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