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evas: use Eina_File for ico loader. 

SVN revision: 66120
This commit is contained in:
Cedric BAIL 2011-12-12 17:48:53 +00:00
parent 4e29867a30
commit 8b22f52e80
1 changed files with 111 additions and 88 deletions
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199
legacy/evas/src/modules/loaders/ico/evas_image_load_ico.c
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@ -22,29 +22,53 @@ static Evas_Image_Load_Func evas_image_load_ico_func =
NULL
};
static int
read_ushort(FILE *file, unsigned short *ret)
static Eina_Bool
read_ushort(unsigned char *map, size_t length, size_t *position, unsigned short *ret)
{
unsigned char b[2];
if (fread(b, sizeof(unsigned char), 2, file) != 2) return 0;
if (*position + 2 > length) return EINA_FALSE;
b[0] = map[(*position)++];
b[1] = map[(*position)++];
*ret = (b[1] << 8) | b[0];
return 1;
return EINA_TRUE;
}
static int
read_uint(FILE *file, unsigned int *ret)
static Eina_Bool
read_uint(unsigned char *map, size_t length, size_t *position, unsigned int *ret)
{
unsigned char b[4];
if (fread(b, sizeof(unsigned char), 4, file) != 4) return 0;
unsigned char b[4];
unsigned int i;
if (*position + 4 > length) return EINA_FALSE;
for (i = 0; i < 4; i++)
b[i] = map[(*position)++];
*ret = ARGB_JOIN(b[3], b[2], b[1], b[0]);
return 1;
return EINA_TRUE;
}
static Eina_Bool
read_uchar(unsigned char *map, size_t length, size_t *position, unsigned char *ret)
{
if (*position + 1 > length) return EINA_FALSE;
*ret = map[(*position)++];
return EINA_TRUE;
}
static Eina_Bool
read_mem(unsigned char *map, size_t length, size_t *position, void *buffer, int size)
{
if (*position + size > length) return EINA_FALSE;
memcpy(buffer, map + *position, size);
*position += size;
return EINA_TRUE;
}
enum
{
SMALLEST,
BIGGEST,
SMALLER,
SMALLEST,
BIGGEST,
SMALLER,
BIGGER
};
@ -57,9 +81,11 @@ enum
static Eina_Bool
evas_image_load_file_head_ico(Image_Entry *ie, const char *file, const char *key, int *error)
{
Eina_File *f;
void *map = NULL;
size_t position = 0;
unsigned short word;
unsigned char byte;
FILE *f;
int wanted_w = 0, wanted_h = 0, w, h, cols, i, planes = 0,
hot_x = 0, hot_y = 0, bpp = 0, pdelta, search = -1, have_choice = 0,
hasa = 1;
@ -74,7 +100,7 @@ evas_image_load_file_head_ico(Image_Entry *ie, const char *file, const char *key
unsigned int bmoffset, bmsize;
} chosen = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
f = fopen(file, "rb");
f = eina_file_open(file, EINA_FILE_SEQUENTIAL);
if (!f)
{
*error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
@ -82,16 +108,14 @@ evas_image_load_file_head_ico(Image_Entry *ie, const char *file, const char *key
}
*error = EVAS_LOAD_ERROR_UNKNOWN_FORMAT;
fseek(f, 0, SEEK_END);
fsize = ftell(f);
fseek(f, 0, SEEK_SET);
fsize = eina_file_size_get(f);
if (fsize < (6 + 16 + 40)) goto close_file;
// key:
// NULL == highest res
// biggest == highest res
// smallest == lowest res
//
//
// smaller == next size SMALLER than load opts WxH (if possible)
// bigger == next size BIGGER than load opts WxH (if possible)
// more ?
@ -103,10 +127,10 @@ evas_image_load_file_head_ico(Image_Entry *ie, const char *file, const char *key
wanted_h = ie->load_opts.h;
search = SMALLER;
}
if (!read_ushort(f, &reserved)) goto close_file;
if (!read_ushort(f, &type)) goto close_file;
if (!read_ushort(f, &count)) goto close_file;
if (!read_ushort(map, fsize, &position, &reserved)) goto close_file;
if (!read_ushort(map, fsize, &position, &type)) goto close_file;
if (!read_ushort(map, fsize, &position, &count)) goto close_file;
if (!((reserved == 0) &&
((type == ICON) || (type == CURSOR)) && (count > 0)))
goto close_file;
@ -141,24 +165,21 @@ evas_image_load_file_head_ico(Image_Entry *ie, const char *file, const char *key
}
for (i = 0; i < count; i++)
{
if (fread(&byte, 1, 1, f) != 1) goto close_file;
w = byte;
if (!read_uchar(map, fsize, &position, ((unsigned char *)&w))) goto close_file;
if (w <= 0) w = 256;
if (fread(&byte, 1, 1, f) != 1) goto close_file;
h = byte;
if (!read_uchar(map, fsize, &position, ((unsigned char *)&h))) goto close_file;
if (h <= 0) h = 256;
if (fread(&byte, 1, 1, f) != 1) goto close_file;
cols = byte;
if (!read_uchar(map, fsize, &position, ((unsigned char *)&cols))) goto close_file;
if (cols <= 0) cols = 256;
if (fread(&byte, 1, 1, f) != 1) goto close_file;
if (!read_ushort(f, &word)) goto close_file;
if (!read_uchar(map, fsize, &position, &byte)) goto close_file;
if (!read_ushort(map, fsize, &position, &word)) goto close_file;
if (type == CURSOR) planes = word;
else hot_x = word;
if (!read_ushort(f, &word)) goto close_file;
if (!read_ushort(map, fsize, &position, &word)) goto close_file;
if (type == CURSOR) bpp = word;
else hot_y = word;
if (!read_uint(f, &bmsize)) goto close_file;
if (!read_uint(f, &bmoffset)) goto close_file;
if (!read_uint(map, fsize, &position, &bmsize)) goto close_file;
if (!read_uint(map, fsize, &position, &bmoffset)) goto close_file;
if ((bmsize <= 0) || (bmoffset <= 0) || (bmoffset >= fsize)) goto close_file;
if (search == BIGGEST)
{
@ -245,7 +266,7 @@ evas_image_load_file_head_ico(Image_Entry *ie, const char *file, const char *key
}
}
if (chosen.bmoffset == 0) goto close_file;
if (fseek(f, chosen.bmoffset, SEEK_SET) != 0) goto close_file;
position = chosen.bmoffset;
w = chosen.w;
h = chosen.h;
@ -263,23 +284,28 @@ evas_image_load_file_head_ico(Image_Entry *ie, const char *file, const char *key
ie->w = w;
ie->h = h;
if (hasa) ie->flags.alpha = 1;
fclose(f);
eina_file_map_free(f, map);
eina_file_close(f);
*error = EVAS_LOAD_ERROR_NONE;
return EINA_TRUE;
close_file:
fclose(f);
if (map) eina_file_map_free(f, map);
eina_file_close(f);
return EINA_FALSE;
}
static Eina_Bool
evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key, int *error)
{
Eina_File *f;
void *map = NULL;
size_t position = 0;
unsigned short word;
unsigned char byte;
unsigned int dword;
FILE *f;
int wanted_w = 0, wanted_h = 0, w, h, cols, i, planes = 0,
hot_x = 0, hot_y = 0, bpp = 0, pdelta, search = -1, have_choice = 0,
stride, pstride, j, right_way_up = 0, diff_size = 0, cols2;
@ -296,7 +322,7 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
unsigned int bmoffset, bmsize;
} chosen = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
f = fopen(file, "rb");
f = eina_file_open(file, EINA_FILE_SEQUENTIAL);
if (!f)
{
*error = EVAS_LOAD_ERROR_DOES_NOT_EXIST;
@ -304,9 +330,7 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
}
*error = EVAS_LOAD_ERROR_UNKNOWN_FORMAT;
fseek(f, 0, SEEK_END);
fsize = ftell(f);
fseek(f, 0, SEEK_SET);
fsize = eina_file_size_get(f);
if (fsize < (6 + 16 + 40)) goto close_file;
// key:
@ -325,11 +349,11 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
wanted_h = ie->load_opts.h;
search = SMALLER;
}
if (!read_ushort(f, &reserved)) goto close_file;
if (!read_ushort(f, &type)) goto close_file;
if (!read_ushort(f, &count)) goto close_file;
if (!((reserved == 0) &&
if (!read_ushort(map, fsize, &position, &reserved)) goto close_file;
if (!read_ushort(map, fsize, &position, &type)) goto close_file;
if (!read_ushort(map, fsize, &position, &count)) goto close_file;
if (!((reserved == 0) &&
((type == ICON) || (type == CURSOR)) && (count > 0)))
goto close_file;
*error = EVAS_LOAD_ERROR_CORRUPT_FILE;
@ -363,24 +387,21 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
}
for (i = 0; i < count; i++)
{
if (fread(&byte, 1, 1, f) != 1) goto close_file;
w = byte;
if (!read_uchar(map, fsize, &position, ((unsigned char *)&w))) goto close_file;
if (w <= 0) w = 256;
if (fread(&byte, 1, 1, f) != 1) goto close_file;
h = byte;
if (!read_uchar(map, fsize, &position, ((unsigned char *)&h))) goto close_file;
if (h <= 0) h = 256;
if (fread(&byte, 1, 1, f) != 1) goto close_file;
cols = byte;
if (!read_uchar(map, fsize, &position, ((unsigned char *)&cols))) goto close_file;
if (cols <= 0) cols = 256;
if (fread(&byte, 1, 1, f) != 1) goto close_file;
if (!read_ushort(f, &word)) goto close_file;
if (!read_uchar(map, fsize, &position, &byte)) goto close_file;
if (!read_ushort(map, fsize, &position, &word)) goto close_file;
if (type == 1) planes = word;
else hot_x = word;
if (!read_ushort(f, &word)) goto close_file;
if (!read_ushort(map, fsize, &position, &word)) goto close_file;
if (type == 1) bpp = word;
else hot_y = word;
if (!read_uint(f, &bmsize)) goto close_file;
if (!read_uint(f, &bmoffset)) goto close_file;
if (!read_uint(map, fsize, &position, &bmsize)) goto close_file;
if (!read_uint(map, fsize, &position, &bmoffset)) goto close_file;
if ((bmsize <= 0) || (bmoffset <= 0) || (bmoffset >= fsize)) goto close_file;
if (search == BIGGEST)
{
@ -467,7 +488,7 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
}
}
if (chosen.bmoffset == 0) goto close_file;
if (fseek(f, chosen.bmoffset, SEEK_SET) != 0) goto close_file;
position = chosen.bmoffset;
w = chosen.w;
h = chosen.h;
@ -477,8 +498,8 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
if (((int)ie->w != w) || ((int)ie->h != h)) goto close_file;
// read bmp header time... let's do some checking
if (!read_uint(f, &dword)) goto close_file; // headersize - dont care
if (!read_uint(f, &dword)) goto close_file; // width
if (!read_uint(map, fsize, &position, &dword)) goto close_file; // headersize - dont care
if (!read_uint(map, fsize, &position, &dword)) goto close_file; // width
if (dword > 0)
{
if ((int)dword != w)
@ -487,7 +508,7 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
diff_size = 1;
}
}
if (!read_uint(f, &dword)) goto close_file; // height
if (!read_uint(map, fsize, &position, &dword)) goto close_file; // height
if (dword > 0)
{
if ((int)dword != (h * 2))
@ -503,19 +524,19 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
" May be expanded or cropped.",
file, ie->w, ie->h, w, h);
}
if (!read_ushort(f, &word)) goto close_file; // planes
if (!read_ushort(map, fsize, &position, &word)) goto close_file; // planes
planes2 = word;
if (!read_ushort(f, &word)) goto close_file; // bitcount
if (!read_ushort(map, fsize, &position, &word)) goto close_file; // bitcount
bitcount = word;
if (!read_uint(f, &dword)) goto close_file; // compression
if (!read_uint(map, fsize, &position, &dword)) goto close_file; // compression
compression = dword;
if (!read_uint(f, &dword)) goto close_file; // imagesize
if (!read_uint(map, fsize, &position, &dword)) goto close_file; // imagesize
imagesize = dword;
if (!read_uint(f, &dword)) goto close_file; // z pixels per m
if (!read_uint(f, &dword)) goto close_file; // y pizels per m
if (!read_uint(f, &dword)) goto close_file; // colors used
if (!read_uint(map, fsize, &position, &dword)) goto close_file; // z pixels per m
if (!read_uint(map, fsize, &position, &dword)) goto close_file; // y pizels per m
if (!read_uint(map, fsize, &position, &dword)) goto close_file; // colors used
colorsused = dword;
if (!read_uint(f, &dword)) goto close_file; // colors important
if (!read_uint(map, fsize, &position, &dword)) goto close_file; // colors important
colorsimportant = dword;
evas_cache_image_surface_alloc(ie, ie->w, ie->h);
@ -545,11 +566,11 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
for (i = 0; i < cols; i++)
{
unsigned char a, r, g, b;
if (fread(&b, 1, 1, f) != 1) goto close_file;
if (fread(&g, 1, 1, f) != 1) goto close_file;
if (fread(&r, 1, 1, f) != 1) goto close_file;
if (fread(&a, 1, 1, f) != 1) goto close_file;
if (!read_uchar(map, fsize, &position, &b)) goto close_file;
if (!read_uchar(map, fsize, &position, &g)) goto close_file;
if (!read_uchar(map, fsize, &position, &r)) goto close_file;
if (!read_uchar(map, fsize, &position, &a)) goto close_file;
a = 0xff;
pal[i] = ARGB_JOIN(a, r, g, b);
}
@ -563,7 +584,7 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
{
pix = surface + (i * ie->w);
if (!right_way_up) pix = surface + ((ie->h - 1 - i) * ie->w);
if (fread(pixbuf, pstride, 1, f) != 1) goto close_file;
if (!read_mem(map, fsize, &position, pixbuf, pstride)) goto close_file;
p = pixbuf;
if (i >= (int)ie->h) continue;
for (j = 0; j < w; j++)
@ -613,7 +634,7 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
{
pix = surface + (i * ie->w);
if (!right_way_up) pix = surface + ((ie->h - 1 - i) * ie->w);
if (fread(pixbuf, pstride, 1, f) != 1) goto close_file;
if (!read_mem(map, fsize, &position, pixbuf, pstride)) goto close_file;
p = pixbuf;
if (i >= (int)ie->h) continue;
for (j = 0; j < w; j++)
@ -639,7 +660,7 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
{
pix = surface + (i * ie->w);
if (!right_way_up) pix = surface + ((ie->h - 1 - i) * ie->w);
if (fread(pixbuf, pstride, 1, f) != 1) goto close_file;
if (!read_mem(map, fsize, &position, pixbuf, pstride)) goto close_file;
p = pixbuf;
if (i >= (int)ie->h) continue;
for (j = 0; j < w; j++)
@ -658,13 +679,13 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
{
pix = surface + (i * ie->w);
if (!right_way_up) pix = surface + ((ie->h - 1 - i) * ie->w);
if (fread(pixbuf, pstride, 1, f) != 1) goto close_file;
if (!read_mem(map, fsize, &position, pixbuf, pstride)) goto close_file;
p = pixbuf;
if (i >= (int)ie->h) continue;
for (j = 0; j < w; j++)
{
unsigned char a, r, g, b;
if (j >= (int)ie->w) break;
b = p[0];
g = p[1];
@ -683,13 +704,13 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
{
pix = surface + (i * ie->w);
if (!right_way_up) pix = surface + ((ie->h - 1 - i) * ie->w);
if (fread(pixbuf, pstride, 1, f) != 1) goto close_file;
if (!read_mem(map, fsize, &position, pixbuf, pstride)) goto close_file;
p = pixbuf;
if (i >= (int)ie->h) continue;
for (j = 0; j < w; j++)
{
unsigned char a, r, g, b;
if (j >= (int)ie->w) break;
b = p[0];
g = p[1];
@ -704,13 +725,13 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
}
if (!none_zero_alpha)
{
if (fread(maskbuf, stride * 4 * h, 1, f) != 1) goto close_file;
if (!read_mem(map, fsize, &position, maskbuf, stride * 4 * h)) goto close_file;
// apply mask
pix = surface;
for (i = 0; i < h; i++)
{
unsigned char *m;
pix = surface + (i * ie->w);
if (!right_way_up) pix = surface + ((ie->h - 1 - i) * ie->w);
m = maskbuf + (stride * i * 4);
@ -727,15 +748,17 @@ evas_image_load_file_data_ico(Image_Entry *ie, const char *file, const char *key
}
}
}
fclose(f);
eina_file_map_free(map, f);
eina_file_close(f);
evas_common_image_premul(ie);
*error = EVAS_LOAD_ERROR_NONE;
return EINA_TRUE;
close_file:
fclose(f);
if (map) eina_file_map_free(map, f);
eina_file_close(f);
return EINA_FALSE;
}