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aeslib: improve frame-assembling routines

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Some scanners provide hardware assistance in frame assemling, i.e.
horizontal and vertical offset to previous frame is provided. This
commit improves code to utilise that assistance. Sensors without
hardware assistance will use software algorithm, which was also
improved to do search in horizontal direction.
This commit is contained in:
Vasily Khoruzhick
2013-12-30 12:07:53 +03:00
parent 82ae7c1c09
commit 061a457658
10 changed files with 320 additions and 129 deletions
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3
libfprint/drivers/aes2660.c
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@@ -49,7 +49,6 @@ static int dev_init(struct fp_img_dev *dev, unsigned long driver_data)
dev->priv = aesdev = g_malloc0(sizeof(struct aesX660_dev));
aesdev->buffer = g_malloc0(AES2660_FRAME_SIZE + AESX660_HEADER_SIZE);
/* No scaling for AES2660 */
aesdev->h_scale_factor = 1;
aesdev->init_seqs[0] = aes2660_init_1;
aesdev->init_seqs_len[0] = array_n_elements(aes2660_init_1);
aesdev->init_seqs[1] = aes2660_init_2;
@@ -103,7 +102,7 @@ struct fp_img_driver aes2660_driver = {
},
.flags = 0,
.img_height = -1,
.img_width = FRAME_WIDTH,
.img_width = FRAME_WIDTH + FRAME_WIDTH / 2,
.open = dev_init,
.close = dev_deinit,