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| author | Ben Harris <bjh21@bjh21.me.uk> | 2022-12-17 22:50:52 +0000 |
|---|---|---|
| committer | Ben Harris <bjh21@bjh21.me.uk> | 2022-12-29 21:19:55 +0000 |
| commit | cdd24fd459d15b8a00498b284d00c202cf872022 (patch) | |
| tree | e17292e5083d8e4506b36be9761c6116184b272c /puzzles.h | |
| parent | 425942c852f22d7d94f7643696522d32c0b02067 (diff) | |
| download | puzzles-cdd24fd459d15b8a00498b284d00c202cf872022.zip puzzles-cdd24fd459d15b8a00498b284d00c202cf872022.tar.gz puzzles-cdd24fd459d15b8a00498b284d00c202cf872022.tar.bz2 puzzles-cdd24fd459d15b8a00498b284d00c202cf872022.tar.xz | |
Expose colour_mix() to backends (and others)
Quite a few backends currently generate colours by multiplying the
foreground colour by a fraction, effectively mixing it with black. On a
black background, this might be reasonably replaced by mixing the
background colour with white, but that's rather arithmetically fiddly.
Happily, I already have a function for that and just need to expose it.
Diffstat (limited to 'puzzles.h')
| -rw-r--r-- | puzzles.h | 3 |
1 files changed, 3 insertions, 0 deletions
@@ -374,6 +374,9 @@ char *fgetline(FILE *fp); char *bin2hex(const unsigned char *in, int inlen); unsigned char *hex2bin(const char *in, int outlen); +/* Mixes two colours in specified proportions. */ +void colour_mix(const float src1[3], const float src2[3], float p, + float dst[3]); /* Sets (and possibly dims) background from frontend default colour, * and auto-generates highlight and lowlight colours too. */ void game_mkhighlight(frontend *fe, float *ret, |