mirror
/
sane-project-backends
kopia lustrzana https://gitlab.com/sane-project/backends
1
0
Forkuj 0
Kod Zgłoszenia Projekty Wydania Wiki Aktywność

Calculates the cropping offset with the ratio.

merge-requests/213/head^2
thierry1970 2020-04-03 09:23:49 +02:00
rodzic dd9e30c814
commit 4f8a6991a9
1 zmienionych plików z 28 dodań i 34 usunięć
Pokaż statystyki Ściągnij plik aktualizacji Ściągnij plik porównania Expand all files Collapse all files

62
backend/escl/escl_crop.c
Wyświetl plik

@ -37,46 +37,37 @@ escl_crop_surface(capabilities_t *scanner,
int *width,
int *height)
{
/*
double ratio = 1.0;
int x_off = 0, x = 0;
int real_w = 0;
int y_off = 0, y = 0;
int real_h = 0;
unsigned char *surface_crop = NULL;
*/
/*
DBG( 1, "Escl Image Crop\n");
if (w < (int)scanner->caps[scanner->source].width)
scanner->caps[scanner->source].width = w;
if (scanner->caps[scanner->source].pos_x < 0)
scanner->caps[scanner->source].pos_x = 0;
if (h < (int)scanner->caps[scanner->source].height)
scanner->caps[scanner->source].height = h;
DBG( 1, "Escl Image Crop\n");
ratio = (double)w / (double)scanner->caps[scanner->source].width;
scanner->caps[scanner->source].width = w;
if (scanner->caps[scanner->source].pos_x < 0)
scanner->caps[scanner->source].pos_x = 0;
scanner->caps[scanner->source].pos_x = 0;
if (scanner->caps[scanner->source].pos_x &&
(scanner->caps[scanner->source].width >
scanner->caps[scanner->source].pos_x))
x_off = (int)((double)scanner->caps[scanner->source].pos_x * ratio);
real_w = scanner->caps[scanner->source].width - x_off;
scanner->caps[scanner->source].height = h;
if (scanner->caps[scanner->source].pos_y &&
(scanner->caps[scanner->source].height >
scanner->caps[scanner->source].pos_y))
y_off = (int)((double)scanner->caps[scanner->source].pos_y * ratio);
real_h = scanner->caps[scanner->source].height - y_off;
DBG( 1, "Escl Image Crop [%dx%d|%dx%d]\n", scanner->caps[scanner->source].pos_x, scanner->caps[scanner->source].pos_y,
scanner->caps[scanner->source].width, scanner->caps[scanner->source].height);
x_off = scanner->caps[scanner->source].pos_x;
if (x_off >= scanner->caps[scanner->source].width) {
real_w = scanner->caps[scanner->source].width;
x_off = 0;
}
else
real_w = scanner->caps[scanner->source].width - x_off;
y_off = scanner->caps[scanner->source].pos_y;
if(y_off >= scanner->caps[scanner->source].height) {
real_h = scanner->caps[scanner->source].height;
y_off = 0;
}
else
real_h = scanner->caps[scanner->source].height - y_off;
*/
*width = w; //real_w;
*height = h; //real_h;
*width = real_w;
*height = real_h;
DBG( 1, "Escl Image Crop [%dx%d]\n", *width, *height);
/*
if (x_off > 0 || real_w < scanner->caps[scanner->source].width ||
y_off > 0 || real_h < scanner->caps[scanner->source].height) {
surface_crop = (unsigned char *)malloc (sizeof (unsigned char) * real_w
@ -91,18 +82,21 @@ escl_crop_surface(capabilities_t *scanner,
{
for (x = 0; x < real_w; x++)
{
surface_crop[y * real_w + x] = surface[(y + y_off) * w + x + x_off];
surface_crop[(y * real_w * bps) + (x * bps)] =
surface[((y + y_off) * w * bps) + ((x + x_off) * bps)];
surface_crop[(y * real_w * bps) + (x * bps) + 1] =
surface[((y + y_off) * w * bps) + ((x + x_off) * bps) + 1];
surface_crop[(y * real_w * bps) + (x * bps) + 2] =
surface[((y + y_off) * w * bps) + ((x + x_off) * bps) + 2];
}
}
free(surface);
surface = surface_crop;
}
*/
// we don't need row pointers anymore
scanner->img_data = surface;
scanner->img_size = (int)(w * h * bps);
// scanner->img_size = (int)(real_w * real_h * bps);
scanner->img_size = (int)(real_w * real_h * bps);
scanner->img_read = 0;
//finish:
finish:
return surface;
}