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aeslib: image assembly

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All 3 authentec drivers now use a shared image assembly function.
This commit is contained in:
Daniel Drake
2007-11-26 23:28:14 +00:00
parent e228f2c7da
commit 3479dee0e4
5 changed files with 33 additions and 44 deletions
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20
libfprint/drivers/aes4000.c
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@@ -34,20 +34,6 @@
#define NR_SUBARRAYS 6
#define SUBARRAY_LEN 768
static void process_subarray(unsigned char *src, unsigned char *dst)
{
int col, row;
int offset = -1;
for (col = 95; col >= 0; col--) {
for (row = 15; row >= 0; row -= 2) {
unsigned char val = src[++offset];
dst[(row * 96) + col] = (val & 0x7) * 36;
dst[((row - 1) * 96) + col] = ((val & 0x70) >> 4) * 36;
}
}
}
static const struct aes_regwrite init_reqs[] = {
/* master reset */
{ 0x80, 0x01 },
@@ -156,14 +142,14 @@ retry:
goto err;
}
for (i = NR_SUBARRAYS - 1; i >= 0; i--) {
for (i = 0; i < NR_SUBARRAYS; i++) {
fp_dbg("subarray header byte %02x", *ptr);
ptr++;
process_subarray(ptr, img->data + (i * 96 * 16));
aes_assemble_image(ptr, 96, 16, img->data + (i * 96 * 16));
ptr += SUBARRAY_LEN;
}
img->flags = FP_IMG_COLORS_INVERTED;
img->flags = FP_IMG_COLORS_INVERTED | FP_IMG_V_FLIPPED | FP_IMG_H_FLIPPED;
*ret = img;
g_free(data);
return 0;