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plug-ins: Import legacy PSD Inner Shadow

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This patch adds support for loading and
applying active legacy Inner Shadow
layer styles in PSD images. It uses
gegl:inner-glow with certain preset values
to replicate the Photoshop filter.
This commit is contained in:
Alx Sa 2025-06-19 23:32:42 +00:00
parent 7262faed16
commit 56c83101e9
2 changed files with 95 additions and 78 deletions
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117
plug-ins/file-psd/psd-layer-res-load.c
View file

@ -790,92 +790,53 @@ load_resource_lrfx (const PSDlayerres *res_a,
return -1;
}
}
else if (memcmp (effectname, "dsdw", 4) == 0)
else if (memcmp (effectname, "dsdw", 4) == 0 ||
memcmp (effectname, "isdw", 4) == 0)
{
gchar bim[4];
guint16 temp[8];
PSDLayerStyleShadow *shadow;
gchar bim[4];
guint16 temp[8];
if (psd_read (input, &ls_a->dsdw.size, 4, error) < 4 ||
psd_read (input, &ls_a->dsdw.ver, 4, error) < 4 ||
psd_read (input, &temp, 16, error) < 2 ||
psd_read (input, &ls_a->dsdw.color[0], 2, error) < 2 ||
psd_read (input, &ls_a->dsdw.color[1], 2, error) < 2 ||
psd_read (input, &ls_a->dsdw.color[2], 2, error) < 2 ||
psd_read (input, &ls_a->dsdw.color[3], 2, error) < 2 ||
psd_read (input, &ls_a->dsdw.color[4], 2, error) < 2 ||
psd_read (input, &bim, 4, error) < 4 ||
psd_read (input, &ls_a->dsdw.blendsig, 4, error) < 4 ||
psd_read (input, &ls_a->dsdw.effecton, 1, error) < 1 ||
psd_read (input, &ls_a->dsdw.anglefx, 1, error) < 1 ||
psd_read (input, &ls_a->dsdw.opacity, 1, error) < 1)
if (memcmp (effectname, "dsdw", 4) == 0)
shadow = &ls_a->dsdw;
else
shadow = &ls_a->isdw;
if (psd_read (input, &shadow->size, 4, error) < 4 ||
psd_read (input, &shadow->ver, 4, error) < 4 ||
psd_read (input, &temp, 16, error) < 2 ||
psd_read (input, &shadow->color[0], 2, error) < 2 ||
psd_read (input, &shadow->color[1], 2, error) < 2 ||
psd_read (input, &shadow->color[2], 2, error) < 2 ||
psd_read (input, &shadow->color[3], 2, error) < 2 ||
psd_read (input, &shadow->color[4], 2, error) < 2 ||
psd_read (input, &bim, 4, error) < 4 ||
psd_read (input, &shadow->blendsig, 4, error) < 4 ||
psd_read (input, &shadow->effecton, 1, error) < 1 ||
psd_read (input, &shadow->anglefx, 1, error) < 1 ||
psd_read (input, &shadow->opacity, 1, error) < 1)
{
psd_set_error (error);
return -1;
}
ls_a->dsdw.size = GUINT32_TO_BE (ls_a->dsdw.size);
ls_a->dsdw.ver = GUINT32_TO_BE (ls_a->dsdw.ver);
ls_a->dsdw.blur = FIXED_TO_FLOAT (GUINT16_TO_BE (temp[0]),
GUINT16_TO_BE (temp[1]));
ls_a->dsdw.intensity = FIXED_TO_FLOAT (GUINT16_TO_BE (temp[2]),
GUINT16_TO_BE (temp[3]));
ls_a->dsdw.angle = FIXED_TO_FLOAT (GUINT16_TO_BE (temp[4]),
GUINT16_TO_BE (temp[5]));
ls_a->dsdw.distance = FIXED_TO_FLOAT (GUINT16_TO_BE (temp[6]),
GUINT16_TO_BE (temp[7]));
shadow->size = GUINT32_TO_BE (shadow->size);
shadow->ver = GUINT32_TO_BE (shadow->ver);
shadow->blur = FIXED_TO_FLOAT (GUINT16_TO_BE (temp[0]),
GUINT16_TO_BE (temp[1]));
shadow->intensity = FIXED_TO_FLOAT (GUINT16_TO_BE (temp[2]),
GUINT16_TO_BE (temp[3]));
shadow->angle = FIXED_TO_FLOAT (GUINT16_TO_BE (temp[4]),
GUINT16_TO_BE (temp[5]));
shadow->distance = FIXED_TO_FLOAT (GUINT16_TO_BE (temp[6]),
GUINT16_TO_BE (temp[7]));
if (ls_a->dsdw.ver == 2)
if (shadow->ver == 2)
{
if (psd_read (input, &ls_a->dsdw.natcolor[0], 2, error) < 2 ||
psd_read (input, &ls_a->dsdw.natcolor[1], 2, error) < 2 ||
psd_read (input, &ls_a->dsdw.natcolor[2], 2, error) < 2 ||
psd_read (input, &ls_a->dsdw.natcolor[3], 2, error) < 2 ||
psd_read (input, &ls_a->dsdw.natcolor[4], 2, error) < 2)
{
psd_set_error (error);
return -1;
}
}
}
else if (memcmp (effectname, "isdw", 4) == 0)
{
gchar bim[4];
guint16 temp[8];
if (psd_read (input, &ls_a->isdw.size, 4, error) < 4 ||
psd_read (input, &ls_a->isdw.ver, 4, error) < 4 ||
psd_read (input, &temp, 16, error) < 2 ||
psd_read (input, &ls_a->isdw.color[0], 2, error) < 2 ||
psd_read (input, &ls_a->isdw.color[1], 2, error) < 2 ||
psd_read (input, &ls_a->isdw.color[2], 2, error) < 2 ||
psd_read (input, &ls_a->isdw.color[3], 2, error) < 2 ||
psd_read (input, &ls_a->isdw.color[4], 2, error) < 2 ||
psd_read (input, &bim, 4, error) < 4 ||
psd_read (input, &ls_a->isdw.blendsig, 4, error) < 4 ||
psd_read (input, &ls_a->isdw.effecton, 1, error) < 1 ||
psd_read (input, &ls_a->isdw.anglefx, 1, error) < 1 ||
psd_read (input, &ls_a->isdw.opacity, 1, error) < 1)
{
psd_set_error (error);
return -1;
}
ls_a->isdw.size = GUINT32_TO_BE (ls_a->isdw.size);
ls_a->isdw.ver = GUINT32_TO_BE (ls_a->isdw.ver);
ls_a->isdw.blur = FIXED_TO_FLOAT (GUINT16_TO_BE (temp[0]),
GUINT16_TO_BE (temp[1]));
ls_a->isdw.intensity = FIXED_TO_FLOAT (GUINT16_TO_BE (temp[2]),
GUINT16_TO_BE (temp[3]));
ls_a->isdw.angle = FIXED_TO_FLOAT (GUINT16_TO_BE (temp[4]),
GUINT16_TO_BE (temp[5]));
ls_a->isdw.distance = FIXED_TO_FLOAT (GUINT16_TO_BE (temp[6]),
GUINT16_TO_BE (temp[7]));
if (ls_a->isdw.ver == 2)
{
if (psd_read (input, &ls_a->isdw.natcolor[0], 2, error) < 2 ||
psd_read (input, &ls_a->isdw.natcolor[1], 2, error) < 2 ||
psd_read (input, &ls_a->isdw.natcolor[2], 2, error) < 2 ||
psd_read (input, &ls_a->isdw.natcolor[3], 2, error) < 2 ||
psd_read (input, &ls_a->isdw.natcolor[4], 2, error) < 2)
if (psd_read (input, &shadow->natcolor[0], 2, error) < 2 ||
psd_read (input, &shadow->natcolor[1], 2, error) < 2 ||
psd_read (input, &shadow->natcolor[2], 2, error) < 2 ||
psd_read (input, &shadow->natcolor[3], 2, error) < 2 ||
psd_read (input, &shadow->natcolor[4], 2, error) < 2)
{
psd_set_error (error);
return -1;

56
plug-ins/file-psd/psd-load.c
View file

@ -2796,6 +2796,62 @@ add_legacy_layer_effects (GimpLayer *layer,
g_object_unref (color);
}
if (lyr_a->layer_styles->isdw.effecton == 1)
{
PSDLayerStyleShadow isdw;
GimpLayerMode mode;
GimpDrawableFilter *filter;
GeglColor *color = gegl_color_new ("none");
gchar *filter_name;
gdouble x;
gdouble y;
gdouble blur;
gdouble radians;
isdw = lyr_a->layer_styles->isdw;
filter_name = g_strdup_printf ("%s (%s)", _("Inner Shadow"),
_("imported"));
radians = (M_PI / 180) * isdw.angle;
x = isdw.distance * cos (radians);
y = isdw.distance * sin (radians);
if (isdw.angle >= 0xFF00)
isdw.angle = (isdw.angle - 0xFF00) * -1;
if (isdw.angle > 90 && isdw.angle < 180)
y *= -1;
else if (isdw.angle < -90 && isdw.angle > -180)
x *= -1;
blur = (isdw.blur / 250.0) * 50.0;
if (isdw.ver == 0)
convert_legacy_psd_color (color, isdw.color, space, ibm_pc_format);
else if (isdw.ver == 2)
convert_legacy_psd_color (color, isdw.natcolor, space, ibm_pc_format);
convert_psd_mode (isdw.blendsig, &mode);
filter = gimp_drawable_append_new_filter (GIMP_DRAWABLE (layer),
"gegl:inner-glow",
filter_name,
mode,
1.0,
"x", x,
"y", y,
"grow-radius", 1.0,
"radius", blur,
"value", color,
"opacity", isdw.opacity / 255.0,
NULL);
g_free (filter_name);
g_object_unref (filter);
g_object_unref (color);
}
if (lyr_a->layer_styles->dsdw.effecton == 1)
{
PSDLayerStyleShadow dsdw;