/
IMG_xcf.c
executable file
·892 lines (757 loc) · 22.1 KB
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/*
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SDL_image: An example image loading library for use with SDL
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Copyright (C) 1997-2017 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
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*/
/* This is a XCF image file loading framework */
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#include "SDL_endian.h"
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#include "SDL_image.h"
#ifdef LOAD_XCF
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#if DEBUG
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static char prop_names [][30] = {
"end",
"colormap",
"active_layer",
"active_channel",
"selection",
"floating_selection",
"opacity",
"mode",
"visible",
"linked",
"preserve_transparency",
"apply_mask",
"edit_mask",
"show_mask",
"show_masked",
"offsets",
"color",
"compression",
"guides",
"resolution",
"tattoo",
"parasites",
"unit",
"paths",
"user_unit"
};
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#endif
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typedef enum
{
PROP_END = 0,
PROP_COLORMAP = 1,
PROP_ACTIVE_LAYER = 2,
PROP_ACTIVE_CHANNEL = 3,
PROP_SELECTION = 4,
PROP_FLOATING_SELECTION = 5,
PROP_OPACITY = 6,
PROP_MODE = 7,
PROP_VISIBLE = 8,
PROP_LINKED = 9,
PROP_PRESERVE_TRANSPARENCY = 10,
PROP_APPLY_MASK = 11,
PROP_EDIT_MASK = 12,
PROP_SHOW_MASK = 13,
PROP_SHOW_MASKED = 14,
PROP_OFFSETS = 15,
PROP_COLOR = 16,
PROP_COMPRESSION = 17,
PROP_GUIDES = 18,
PROP_RESOLUTION = 19,
PROP_TATTOO = 20,
PROP_PARASITES = 21,
PROP_UNIT = 22,
PROP_PATHS = 23,
PROP_USER_UNIT = 24
} xcf_prop_type;
typedef enum {
COMPR_NONE = 0,
COMPR_RLE = 1,
COMPR_ZLIB = 2,
COMPR_FRACTAL = 3
} xcf_compr_type;
typedef enum {
IMAGE_RGB = 0,
IMAGE_GREYSCALE = 1,
IMAGE_INDEXED = 2
} xcf_image_type;
typedef struct {
Uint32 id;
Uint32 length;
union {
struct {
Uint32 num;
char * cmap;
} colormap; // 1
struct {
Uint32 drawable_offset;
} floating_selection; // 5
Sint32 opacity;
Sint32 mode;
int visible;
int linked;
int preserve_transparency;
int apply_mask;
int show_mask;
struct {
Sint32 x;
Sint32 y;
} offset;
unsigned char color [3];
Uint8 compression;
struct {
Sint32 x;
Sint32 y;
} resolution;
struct {
char * name;
Uint32 flags;
Uint32 size;
char * data;
} parasite;
} data;
} xcf_prop;
typedef struct {
char sign [14];
Uint32 width;
Uint32 height;
Sint32 image_type;
xcf_prop * properties;
Uint32 * layer_file_offsets;
Uint32 * channel_file_offsets;
xcf_compr_type compr;
Uint32 cm_num;
unsigned char * cm_map;
} xcf_header;
typedef struct {
Uint32 width;
Uint32 height;
Sint32 layer_type;
char * name;
xcf_prop * properties;
Uint32 hierarchy_file_offset;
Uint32 layer_mask_offset;
Uint32 offset_x;
Uint32 offset_y;
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int visible;
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} xcf_layer;
typedef struct {
Uint32 width;
Uint32 height;
char * name;
xcf_prop * properties;
Uint32 hierarchy_file_offset;
Uint32 color;
Uint32 opacity;
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int selection;
int visible;
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} xcf_channel;
typedef struct {
Uint32 width;
Uint32 height;
Uint32 bpp;
Uint32 * level_file_offsets;
} xcf_hierarchy;
typedef struct {
Uint32 width;
Uint32 height;
Uint32 * tile_file_offsets;
} xcf_level;
typedef unsigned char * xcf_tile;
typedef unsigned char * (* load_tile_type) (SDL_RWops *, Uint32, int, int, int);
/* See if an image is contained in a data source */
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int IMG_isXCF(SDL_RWops *src)
{
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Sint64 start;
int is_XCF;
char magic[14];
if ( !src )
return 0;
start = SDL_RWtell(src);
is_XCF = 0;
if ( SDL_RWread(src, magic, sizeof(magic), 1) ) {
if (SDL_strncmp(magic, "gimp xcf ", 9) == 0) {
is_XCF = 1;
}
}
SDL_RWseek(src, start, RW_SEEK_SET);
return(is_XCF);
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}
static char * read_string (SDL_RWops * src) {
Uint32 tmp;
char * data;
tmp = SDL_ReadBE32 (src);
if (tmp > 0) {
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data = (char *) SDL_malloc (sizeof (char) * tmp);
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SDL_RWread (src, data, tmp, 1);
}
else {
data = NULL;
}
return data;
}
static Uint32 Swap32 (Uint32 v) {
return
((v & 0x000000FF) << 16)
| ((v & 0x0000FF00))
| ((v & 0x00FF0000) >> 16)
| ((v & 0xFF000000));
}
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static void xcf_read_property (SDL_RWops * src, xcf_prop * prop) {
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Uint32 len;
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prop->id = SDL_ReadBE32 (src);
prop->length = SDL_ReadBE32 (src);
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#if DEBUG
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printf ("%.8X: %s: %d\n", SDL_RWtell (src), prop->id < 25 ? prop_names [prop->id] : "unknown", prop->length);
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#endif
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switch (prop->id) {
case PROP_COLORMAP:
prop->data.colormap.num = SDL_ReadBE32 (src);
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prop->data.colormap.cmap = (char *) SDL_malloc (sizeof (char) * prop->data.colormap.num * 3);
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SDL_RWread (src, prop->data.colormap.cmap, prop->data.colormap.num*3, 1);
break;
case PROP_OFFSETS:
prop->data.offset.x = SDL_ReadBE32 (src);
prop->data.offset.y = SDL_ReadBE32 (src);
break;
case PROP_OPACITY:
prop->data.opacity = SDL_ReadBE32 (src);
break;
case PROP_COMPRESSION:
case PROP_COLOR:
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if (prop->length > sizeof(prop->data)) {
len = sizeof(prop->data);
} else {
len = prop->length;
}
SDL_RWread(src, &prop->data, len, 1);
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break;
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case PROP_VISIBLE:
prop->data.visible = SDL_ReadBE32 (src);
break;
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default:
// SDL_RWread (src, &prop->data, prop->length, 1);
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SDL_RWseek (src, prop->length, RW_SEEK_CUR);
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}
}
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static void free_xcf_header (xcf_header * h) {
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if (h->cm_num)
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SDL_free (h->cm_map);
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if (h->layer_file_offsets)
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SDL_free (h->layer_file_offsets);
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SDL_free (h);
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}
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static xcf_header * read_xcf_header (SDL_RWops * src) {
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xcf_header * h;
xcf_prop prop;
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h = (xcf_header *) SDL_malloc (sizeof (xcf_header));
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if (!h) {
return NULL;
}
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SDL_RWread (src, h->sign, 14, 1);
h->width = SDL_ReadBE32 (src);
h->height = SDL_ReadBE32 (src);
h->image_type = SDL_ReadBE32 (src);
h->properties = NULL;
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h->layer_file_offsets = NULL;
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h->compr = COMPR_NONE;
h->cm_num = 0;
h->cm_map = NULL;
// Just read, don't save
do {
xcf_read_property (src, &prop);
if (prop.id == PROP_COMPRESSION)
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h->compr = (xcf_compr_type)prop.data.compression;
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else if (prop.id == PROP_COLORMAP) {
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// unused var: int i;
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Uint32 cm_num;
unsigned char *cm_map;
cm_num = prop.data.colormap.num;
cm_map = (unsigned char *) SDL_realloc(h->cm_map, sizeof (unsigned char) * 3 * cm_num);
if (cm_map) {
h->cm_num = cm_num;
h->cm_map = cm_map;
SDL_memcpy (h->cm_map, prop.data.colormap.cmap, 3*sizeof (char)*h->cm_num);
}
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SDL_free (prop.data.colormap.cmap);
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if (!cm_map) {
free_xcf_header(h);
return NULL;
}
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}
} while (prop.id != PROP_END);
return h;
}
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static void free_xcf_layer (xcf_layer * l) {
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SDL_free (l->name);
SDL_free (l);
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}
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static xcf_layer * read_xcf_layer (SDL_RWops * src) {
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xcf_layer * l;
xcf_prop prop;
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l = (xcf_layer *) SDL_malloc (sizeof (xcf_layer));
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l->width = SDL_ReadBE32 (src);
l->height = SDL_ReadBE32 (src);
l->layer_type = SDL_ReadBE32 (src);
l->name = read_string (src);
do {
xcf_read_property (src, &prop);
if (prop.id == PROP_OFFSETS) {
l->offset_x = prop.data.offset.x;
l->offset_y = prop.data.offset.y;
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} else if (prop.id == PROP_VISIBLE) {
l->visible = prop.data.visible ? 1 : 0;
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}
} while (prop.id != PROP_END);
l->hierarchy_file_offset = SDL_ReadBE32 (src);
l->layer_mask_offset = SDL_ReadBE32 (src);
return l;
}
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static void free_xcf_channel (xcf_channel * c) {
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SDL_free (c->name);
SDL_free (c);
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}
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static xcf_channel * read_xcf_channel (SDL_RWops * src) {
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xcf_channel * l;
xcf_prop prop;
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l = (xcf_channel *) SDL_malloc (sizeof (xcf_channel));
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l->width = SDL_ReadBE32 (src);
l->height = SDL_ReadBE32 (src);
l->name = read_string (src);
l->selection = 0;
do {
xcf_read_property (src, &prop);
switch (prop.id) {
case PROP_OPACITY:
l->opacity = prop.data.opacity << 24;
break;
case PROP_COLOR:
l->color = ((Uint32) prop.data.color[0] << 16)
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| ((Uint32) prop.data.color[1] << 8)
| ((Uint32) prop.data.color[2]);
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break;
case PROP_SELECTION:
l->selection = 1;
break;
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case PROP_VISIBLE:
l->visible = prop.data.visible ? 1 : 0;
break;
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default:
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;
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}
} while (prop.id != PROP_END);
l->hierarchy_file_offset = SDL_ReadBE32 (src);
return l;
}
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static void free_xcf_hierarchy (xcf_hierarchy * h) {
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SDL_free (h->level_file_offsets);
SDL_free (h);
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}
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static xcf_hierarchy * read_xcf_hierarchy (SDL_RWops * src) {
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xcf_hierarchy * h;
int i;
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h = (xcf_hierarchy *) SDL_malloc (sizeof (xcf_hierarchy));
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h->width = SDL_ReadBE32 (src);
h->height = SDL_ReadBE32 (src);
h->bpp = SDL_ReadBE32 (src);
h->level_file_offsets = NULL;
i = 0;
do {
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h->level_file_offsets = (Uint32 *) SDL_realloc (h->level_file_offsets, sizeof (Uint32) * (i+1));
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h->level_file_offsets [i] = SDL_ReadBE32 (src);
} while (h->level_file_offsets [i++]);
return h;
}
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static void free_xcf_level (xcf_level * l) {
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SDL_free (l->tile_file_offsets);
SDL_free (l);
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}
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static xcf_level * read_xcf_level (SDL_RWops * src) {
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xcf_level * l;
int i;
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l = (xcf_level *) SDL_malloc (sizeof (xcf_level));
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l->width = SDL_ReadBE32 (src);
l->height = SDL_ReadBE32 (src);
l->tile_file_offsets = NULL;
i = 0;
do {
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l->tile_file_offsets = (Uint32 *) SDL_realloc (l->tile_file_offsets, sizeof (Uint32) * (i+1));
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l->tile_file_offsets [i] = SDL_ReadBE32 (src);
} while (l->tile_file_offsets [i++]);
return l;
}
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static void free_xcf_tile (unsigned char * t) {
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SDL_free (t);
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}
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static unsigned char * load_xcf_tile_none (SDL_RWops * src, Uint32 len, int bpp, int x, int y) {
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unsigned char * load;
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load = (unsigned char *) SDL_malloc (len); // expect this is okay
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SDL_RWread (src, load, len, 1);
return load;
}
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static unsigned char * load_xcf_tile_rle (SDL_RWops * src, Uint32 len, int bpp, int x, int y) {
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unsigned char * load, * t, * data, * d;
Uint32 reallen;
int i, size, count, j, length;
unsigned char val;
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if (len == 0) { /* probably bogus data. */
return NULL;
}
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t = load = (unsigned char *) SDL_malloc (len);
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reallen = SDL_RWread (src, t, 1, len);
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data = (unsigned char *) SDL_calloc (1, x*y*bpp);
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for (i = 0; i < bpp; i++) {
d = data + i;
size = x*y;
count = 0;
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while (size > 0) {
val = *t++;
length = val;
if (length >= 128) {
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length = 255 - (length - 1);
if (length == 128) {
length = (*t << 8) + t[1];
t += 2;
}
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if (((size_t) (t - load) + length) >= len) {
break; /* bogus data */
} else if (length > size) {
break; /* bogus data */
}
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count += length;
size -= length;
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while (length-- > 0) {
*d = *t++;
d += bpp;
}
} else {
length += 1;
if (length == 128) {
length = (*t << 8) + t[1];
t += 2;
}
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if (((size_t) (t - load)) >= len) {
break; /* bogus data */
} else if (length > size) {
break; /* bogus data */
}
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count += length;
size -= length;
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val = *t++;
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for (j = 0; j < length; j++) {
*d = val;
d += bpp;
}
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}
}
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if (size > 0) {
break; /* just drop out, untouched data initialized to zero. */
}
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}
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SDL_free (load);
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return (data);
}
static Uint32 rgb2grey (Uint32 a) {
Uint8 l;
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l = (Uint8)(0.2990 * ((a & 0x00FF0000) >> 16)
+ 0.5870 * ((a & 0x0000FF00) >> 8)
+ 0.1140 * ((a & 0x000000FF)));
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return (l << 16) | (l << 8) | l;
}
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static void create_channel_surface (SDL_Surface * surf, xcf_image_type itype, Uint32 color, Uint32 opacity) {
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Uint32 c = 0;
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switch (itype) {
case IMAGE_RGB:
case IMAGE_INDEXED:
c = opacity | color;
break;
case IMAGE_GREYSCALE:
c = opacity | rgb2grey (color);
break;
}
SDL_FillRect (surf, NULL, c);
}
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static int
do_layer_surface(SDL_Surface * surface, SDL_RWops * src, xcf_header * head, xcf_layer * layer, load_tile_type load_tile)
{
xcf_hierarchy *hierarchy;
xcf_level *level;
unsigned char *tile;
Uint8 *p8;
Uint16 *p16;
Uint32 *p;
int i, j;
Uint32 x, y, tx, ty, ox, oy;
Uint32 *row;
SDL_RWseek(src, layer->hierarchy_file_offset, RW_SEEK_SET);
hierarchy = read_xcf_hierarchy(src);
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if (hierarchy->bpp > 4) { /* unsupported. */
SDL_Log("Unknown Gimp image bpp (%u)\n", (unsigned int) hierarchy->bpp);
free_xcf_hierarchy(hierarchy);
return 1;
}
if ((hierarchy->width > 20000) || (hierarchy->height > 20000)) { /* arbitrary limit to avoid integer overflow. */
SDL_Log("Gimp image too large (%ux%u)\n", (unsigned int) hierarchy->width, (unsigned int) hierarchy->height);
free_xcf_hierarchy(hierarchy);
return 1;
}
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level = NULL;
for (i = 0; hierarchy->level_file_offsets[i]; i++) {
SDL_RWseek(src, hierarchy->level_file_offsets[i], RW_SEEK_SET);
level = read_xcf_level(src);
ty = tx = 0;
for (j = 0; level->tile_file_offsets[j]; j++) {
SDL_RWseek(src, level->tile_file_offsets[j], RW_SEEK_SET);
ox = tx + 64 > level->width ? level->width % 64 : 64;
oy = ty + 64 > level->height ? level->height % 64 : 64;
if (level->tile_file_offsets[j + 1]) {
tile = load_tile(src, level->tile_file_offsets[j + 1] - level->tile_file_offsets[j], hierarchy->bpp, ox, oy);
} else {
tile = load_tile(src, ox * oy * 6, hierarchy->bpp, ox, oy);
}
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if (!tile) {
if (hierarchy) {
free_xcf_hierarchy(hierarchy);
}
if (level) {
free_xcf_level(level);
}
return 1;
}
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p8 = tile;
p16 = (Uint16 *) p8;
p = (Uint32 *) p8;
for (y = ty; y < ty + oy; y++) {
row = (Uint32 *) ((Uint8 *) surface->pixels + y * surface->pitch + tx * 4);
switch (hierarchy->bpp) {
case 4:
for (x = tx; x < tx + ox; x++)
*row++ = Swap32(*p++);
break;
case 3:
for (x = tx; x < tx + ox; x++) {
*row = 0xFF000000;
*row |= ((Uint32)*p8++ << 16);
*row |= ((Uint32)*p8++ << 8);
*row |= ((Uint32)*p8++ << 0);
row++;
}
break;
case 2:
/* Indexed / Greyscale + Alpha */
switch (head->image_type) {
case IMAGE_INDEXED:
for (x = tx; x < tx + ox; x++) {
*row = ((Uint32)(head->cm_map[*p8 * 3]) << 16);
*row |= ((Uint32)(head->cm_map[*p8 * 3 + 1]) << 8);
*row |= ((Uint32)(head->cm_map[*p8++ * 3 + 2]) << 0);
*row |= ((Uint32)*p8++ << 24);
row++;
}
break;
case IMAGE_GREYSCALE:
for (x = tx; x < tx + ox; x++) {
*row = ((Uint32)*p8 << 16);
*row |= ((Uint32)*p8 << 8);
*row |= ((Uint32)*p8++ << 0);
*row |= ((Uint32)*p8++ << 24);
row++;
}
break;
default:
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SDL_Log("Unknown Gimp image type (%d)\n", head->image_type);
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if (hierarchy) {
free_xcf_hierarchy(hierarchy);
}
if (level)
free_xcf_level(level);
return 1;
}
break;
case 1:
/* Indexed / Greyscale */
689
switch (head->image_type) {
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
case IMAGE_INDEXED:
for (x = tx; x < tx + ox; x++) {
*row++ = 0xFF000000
| ((Uint32)(head->cm_map[*p8 * 3]) << 16)
| ((Uint32)(head->cm_map[*p8 * 3 + 1]) << 8)
| ((Uint32)(head->cm_map[*p8 * 3 + 2]) << 0);
p8++;
}
break;
case IMAGE_GREYSCALE:
for (x = tx; x < tx + ox; x++) {
*row++ = 0xFF000000
| (((Uint32)(*p8)) << 16)
| (((Uint32)(*p8)) << 8)
| (((Uint32)(*p8)) << 0);
++p8;
}
break;
default:
709
SDL_Log("Unknown Gimp image type (%d)\n", head->image_type);
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
if (tile)
free_xcf_tile(tile);
if (level)
free_xcf_level(level);
if (hierarchy)
free_xcf_hierarchy(hierarchy);
return 1;
}
break;
}
}
free_xcf_tile(tile);
tx += 64;
if (tx >= level->width) {
tx = 0;
ty += 64;
}
if (ty >= level->height) {
break;
}
731
}
732
free_xcf_level(level);
733
}
734
735
free_xcf_hierarchy(hierarchy);
736
737
return 0;
738
739
}
740
741
SDL_Surface *IMG_LoadXCF_RW(SDL_RWops *src)
{
742
Sint64 start;
743
const char *error = NULL;
744
745
746
747
SDL_Surface *surface, *lays;
xcf_header * head;
xcf_layer * layer;
xcf_channel ** channel;
748
int chnls, i, offsets;
749
Sint64 offset, fp;
750
751
752
unsigned char * (* load_tile) (SDL_RWops *, Uint32, int, int, int);
753
if (!src) {
754
755
756
/* The error message has been set in SDL_RWFromFile */
return NULL;
}
757
start = SDL_RWtell(src);
758
759
760
761
/* Initialize the data we will clean up when we're done */
surface = NULL;
762
763
764
765
head = read_xcf_header(src);
if (!head) {
return NULL;
}
766
767
768
769
770
771
772
773
774
switch (head->compr) {
case COMPR_NONE:
load_tile = load_xcf_tile_none;
break;
case COMPR_RLE:
load_tile = load_xcf_tile_rle;
break;
default:
775
SDL_Log("Unsupported Compression.\n");
776
777
778
779
780
free_xcf_header (head);
return NULL;
}
/* Create the surface of the appropriate type */
781
surface = SDL_CreateRGBSurface(SDL_SWSURFACE, head->width, head->height, 32,
782
0x00FF0000,0x0000FF00,0x000000FF,0xFF000000);
783
784
if ( surface == NULL ) {
785
error = "Out of memory";
786
787
788
789
790
goto done;
}
offsets = 0;
791
while ((offset = SDL_ReadBE32 (src))) {
792
head->layer_file_offsets = (Uint32 *) SDL_realloc (head->layer_file_offsets, sizeof (Uint32) * (offsets+1));
793
head->layer_file_offsets [offsets] = (Uint32)offset;
794
795
796
offsets++;
}
fp = SDL_RWtell (src);
797
798
lays = SDL_CreateRGBSurface(SDL_SWSURFACE, head->width, head->height, 32,
799
0x00FF0000,0x0000FF00,0x000000FF,0xFF000000);
800
801
if ( lays == NULL ) {
802
error = "Out of memory";
803
804
805
806
807
808
goto done;
}
// Blit layers backwards, because Gimp saves them highest first
for (i = offsets; i > 0; i--) {
SDL_Rect rs, rd;
809
SDL_RWseek (src, head->layer_file_offsets [i-1], RW_SEEK_SET);
810
811
812
813
814
815
816
817
818
819
820
821
layer = read_xcf_layer (src);
do_layer_surface (lays, src, head, layer, load_tile);
rs.x = 0;
rs.y = 0;
rs.w = layer->width;
rs.h = layer->height;
rd.x = layer->offset_x;
rd.y = layer->offset_y;
rd.w = layer->width;
rd.h = layer->height;
822
823
824
if (layer->visible)
SDL_BlitSurface (lays, &rs, surface, &rd);
free_xcf_layer (layer);
825
826
827
828
}
SDL_FreeSurface (lays);
829
SDL_RWseek (src, fp, RW_SEEK_SET);
830
831
832
833
// read channels
channel = NULL;
chnls = 0;
834
while ((offset = SDL_ReadBE32 (src))) {
835
channel = (xcf_channel **) SDL_realloc (channel, sizeof (xcf_channel *) * (chnls+1));
836
fp = SDL_RWtell (src);
837
SDL_RWseek (src, offset, RW_SEEK_SET);
838
channel [chnls++] = (read_xcf_channel (src));
839
SDL_RWseek (src, fp, RW_SEEK_SET);
840
841
842
843
844
}
if (chnls) {
SDL_Surface * chs;
845
chs = SDL_CreateRGBSurface(SDL_SWSURFACE, head->width, head->height, 32,
846
0x00FF0000,0x0000FF00,0x000000FF,0xFF000000);
847
848
if (chs == NULL) {
849
error = "Out of memory";
850
851
852
853
goto done;
}
for (i = 0; i < chnls; i++) {
// printf ("CNLBLT %i\n", i);
854
if (!channel [i]->selection && channel [i]->visible) {
855
856
create_channel_surface (chs, (xcf_image_type)head->image_type, channel [i]->color, channel [i]->opacity);
SDL_BlitSurface (chs, NULL, surface, NULL);
857
858
859
860
861
862
863
}
free_xcf_channel (channel [i]);
}
SDL_FreeSurface (chs);
}
864
done:
865
free_xcf_header (head);
866
if ( error ) {
867
SDL_RWseek(src, start, RW_SEEK_SET);
868
869
870
871
if ( surface ) {
SDL_FreeSurface(surface);
surface = NULL;
}
872
IMG_SetError("%s", error);
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
}
return(surface);
}
#else
/* See if an image is contained in a data source */
int IMG_isXCF(SDL_RWops *src)
{
return(0);
}
/* Load a XCF type image from an SDL datasource */
SDL_Surface *IMG_LoadXCF_RW(SDL_RWops *src)
{
return(NULL);
}
#endif /* LOAD_XCF */