diff options
Diffstat (limited to 'pixman/pixman/pixman-general.c')
| -rw-r--r-- | pixman/pixman/pixman-general.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/pixman/pixman/pixman-general.c b/pixman/pixman/pixman-general.c index 8bce7c006..7cdea2956 100644 --- a/pixman/pixman/pixman-general.c +++ b/pixman/pixman/pixman-general.c @@ -109,6 +109,20 @@ static const op_info_t op_flags[PIXMAN_N_OPERATORS] = #define SCANLINE_BUFFER_LENGTH 8192 +static pixman_bool_t +operator_needs_division (pixman_op_t op) +{ + static const uint8_t needs_division[] = + { + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, /* SATURATE */ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, /* DISJOINT */ + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, /* CONJOINT */ + 0, 0, 0, 0, 0, 1, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, /* blend ops */ + }; + + return needs_division[op]; +} + static void general_composite_rect (pixman_implementation_t *imp, pixman_composite_info_t *info) @@ -124,9 +138,10 @@ general_composite_rect (pixman_implementation_t *imp, int Bpp; int i; - if ((src_image->common.flags & FAST_PATH_NARROW_FORMAT) && - (!mask_image || mask_image->common.flags & FAST_PATH_NARROW_FORMAT) && - (dest_image->common.flags & FAST_PATH_NARROW_FORMAT)) + if ((src_image->common.flags & FAST_PATH_NARROW_FORMAT) && + (!mask_image || mask_image->common.flags & FAST_PATH_NARROW_FORMAT) && + (dest_image->common.flags & FAST_PATH_NARROW_FORMAT) && + !(operator_needs_division (op))) { width_flag = ITER_NARROW; Bpp = 4; |