diff options
| author | Mattias Andrée <maandree@kth.se> | 2017-06-10 14:48:58 +0200 |
|---|---|---|
| committer | Mattias Andrée <maandree@kth.se> | 2017-06-10 14:48:58 +0200 |
| commit | 52bdacb940488a1e8d5182687ecc890d607e7a98 (patch) | |
| tree | 71c36d7ef82282686c2b76819caa55b263e70560 /en_masse-template.c | |
| parent | m (diff) | |
| download | libcolour-52bdacb940488a1e8d5182687ecc890d607e7a98.tar.gz libcolour-52bdacb940488a1e8d5182687ecc890d607e7a98.tar.bz2 libcolour-52bdacb940488a1e8d5182687ecc890d607e7a98.tar.xz | |
m + add libcolour_convert_en_masse.3
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'en_masse-template.c')
| -rw-r--r-- | en_masse-template.c | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/en_masse-template.c b/en_masse-template.c index 127d766..7869d23 100644 --- a/en_masse-template.c +++ b/en_masse-template.c @@ -26,9 +26,9 @@ libcolour_convert_en_masse(const libcolour_colour_t *from, const libcolour_colou int on_cpu = mode & LIBCOLOUR_CONVERT_EN_MASSE_ON_CPU; int no_override = mode & LIBCOLOUR_CONVERT_EN_MASSE_NO_OVERRIDE; va_list args; - TYPE *in1, *in2, *in3; - TYPE *out1, *out2, *out3; - size_t width; + TYPE *in1, *in2, *in3, *in_alpha = NULL; + TYPE *out1, *out2, *out3, *out_alpha = NULL; + size_t width, i; if ((unsigned int)mode > 15U) { errno = EINVAL; @@ -47,15 +47,16 @@ libcolour_convert_en_masse(const libcolour_colour_t *from, const libcolour_colou in3 = in1 + 2; width = 3; } else if (alpha_mode == LIBCOLOUR_CONVERT_EN_MASSE_ALPHA_FIRST) { - in1 = va_arg(args, TYPE *); - in2 = in1 + 2; - in3 = in1 + 3; - in1 = in1 + 1; + in_alpha = va_arg(args, TYPE *); + in1 = in_alpha + 1; + in2 = in_alpha + 2; + in3 = in_alpha + 3; width = 4; } else if (alpha_mode == LIBCOLOUR_CONVERT_EN_MASSE_ALPHA_LAST) { in1 = va_arg(args, TYPE *); in2 = in1 + 1; in3 = in1 + 2; + in_alpha = in1 + 3; width = 4; } else { in1 = va_arg(args, TYPE *); @@ -73,14 +74,15 @@ libcolour_convert_en_masse(const libcolour_colour_t *from, const libcolour_colou out2 = out1 + 1; out3 = out1 + 2; } else if (alpha_mode == LIBCOLOUR_CONVERT_EN_MASSE_ALPHA_FIRST) { - out1 = va_arg(args, TYPE *); - out2 = out1 + 2; - out3 = out1 + 3; - out1 = out1 + 1; + out_alpha = va_arg(args, TYPE *); + out1 = out_alpha + 1; + out2 = out_alpha + 2; + out3 = out_alpha + 3; } else if (alpha_mode == LIBCOLOUR_CONVERT_EN_MASSE_ALPHA_LAST) { out1 = va_arg(args, TYPE *); out2 = out1 + 1; out3 = out1 + 2; + out_alpha = out1 + 3; } else { out1 = va_arg(args, TYPE *); out2 = va_arg(args, TYPE *); @@ -107,6 +109,14 @@ libcolour_convert_en_masse(const libcolour_colour_t *from, const libcolour_colou return -1; } + if (in_alpha != out_alpha) { + for (i = 0; i < n; i++) { + *out_alpha = *in_alpha; + in_alpha += width; + out_alpha += width; + } + } + while (n--) { tfrom.rgb.R = *in1; tfrom.rgb.G = *in2; |