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Lines 609-636
create_surface_from_thumbnail_data (guchar *data,
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| 609 |
gint rowstride) |
609 |
gint rowstride) |
| 610 |
{ |
610 |
{ |
| 611 |
guchar *cairo_pixels; |
611 |
guchar *cairo_pixels; |
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|
612 |
gint cairo_stride; |
| 612 |
cairo_surface_t *surface; |
613 |
cairo_surface_t *surface; |
| 613 |
static cairo_user_data_key_t key; |
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|
| 614 |
int j; |
614 |
int j; |
| 615 |
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615 |
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| 616 |
cairo_pixels = (guchar *)g_malloc (4 * width * height); |
616 |
surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height); |
| 617 |
surface = cairo_image_surface_create_for_data ((unsigned char *)cairo_pixels, |
617 |
if (cairo_surface_status (surface)) |
| 618 |
CAIRO_FORMAT_RGB24, |
618 |
return NULL; |
| 619 |
width, height, 4 * width); |
619 |
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| 620 |
cairo_surface_set_user_data (surface, &key, |
620 |
cairo_pixels = cairo_image_surface_get_data (surface); |
| 621 |
cairo_pixels, (cairo_destroy_func_t)g_free); |
621 |
cairo_stride = cairo_image_surface_get_stride (surface); |
| 622 |
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622 |
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| 623 |
for (j = height; j; j--) { |
623 |
for (j = height; j; j--) { |
| 624 |
guchar *p = data; |
624 |
guchar *p = data; |
| 625 |
guchar *q = cairo_pixels; |
625 |
guchar *q = cairo_pixels; |
| 626 |
guchar *end = p + 3 * width; |
626 |
guchar *end = p + 3 * width; |
| 627 |
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627 |
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| 628 |
while (p < end) { |
628 |
while (p < end) { |
| 629 |
#if G_BYTE_ORDER == G_LITTLE_ENDIAN |
629 |
#if G_BYTE_ORDER == G_LITTLE_ENDIAN |
| 630 |
q[0] = p[2]; |
630 |
q[0] = p[2]; |
| 631 |
q[1] = p[1]; |
631 |
q[1] = p[1]; |
| 632 |
q[2] = p[0]; |
632 |
q[2] = p[0]; |
| 633 |
#else |
633 |
#else |
| 634 |
q[1] = p[0]; |
634 |
q[1] = p[0]; |
| 635 |
q[2] = p[1]; |
635 |
q[2] = p[1]; |
| 636 |
q[3] = p[2]; |
636 |
q[3] = p[2]; |
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Lines 640-646
create_surface_from_thumbnail_data (guchar *data,
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| 640 |
} |
640 |
} |
| 641 |
|
641 |
|
| 642 |
data += rowstride; |
642 |
data += rowstride; |
| 643 |
cairo_pixels += 4 * width; |
643 |
cairo_pixels += cairo_stride; |
| 644 |
} |
644 |
} |
| 645 |
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645 |
|
| 646 |
return surface; |
646 |
return surface; |
