diff options
Diffstat (limited to 'src/output.c')
| -rw-r--r-- | src/output.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/output.c b/src/output.c index 5e8e8b0..b2085db 100644 --- a/src/output.c +++ b/src/output.c @@ -224,3 +224,101 @@ int output_cmp_by_name(const void* a, const void* b) return strcmp(an, bn); } + +/** + * Find an output by its name + * + * @param key The name of the output + * @param base The array of outputs + * @param n The number of elements in `base` + * @return Output find in `base`, `NULL` if not found + */ +struct output* output_find_by_name(const char* key, struct output* base, size_t n) +{ + struct output k; + +#if defined(__GNUC__) +# pragma GCC diagnostic push +# pragma GCC diagnostic ignored "-Wcast-qual" +#endif + k.name = (char*)key; +#if defined(__GNUC__) +# pragma GCC diagnostic pop +#endif + + return bsearch(&k, base, n, sizeof(*base), output_cmp_by_name); +} + + +/** + * Add a filter to an output + * + * @param out The output + * @param filter The filter + * @return The index given to the filter, -1 on error + */ +ssize_t add_filter(struct output* out, struct filter* filter) +{ + size_t i, n = out->table_size; + int r = -1; + + for (i = 0; i < n; i++) + if (filter->priority > out->table_filters[i].priority) + break; + + if (n == out->table_alloc) + { + void* new; + + new = realloc(out->table_filters, (n + 10) * sizeof(*(out->table_filters))); + if (new == NULL) + return -1; + out->table_filters = new; + + new = realloc(out->table_sums, (n + 10) * sizeof(*(out->table_sums))); + if (new == NULL) + return -1; + out->table_sums = new; + + out->table_alloc += 10; + } + + memmove(out->table_filters + i + 1, out->table_filters + i, (n - i) * sizeof(*(out->table_filters))); + memmove(out->table_sums + i + 1, out->table_sums + i, (n - i) * sizeof(*(out->table_sums))); + out->table_size++; + + COPY_RAMP_SIZES(&(out->table_sums[i].u8), out); + switch (out->depth) + { + case 8: r = libgamma_gamma_ramps8_initialise(&(out->table_sums[i].u8)); break; + case 16: r = libgamma_gamma_ramps16_initialise(&(out->table_sums[i].u16)); break; + case 32: r = libgamma_gamma_ramps32_initialise(&(out->table_sums[i].u32)); break; + case 64: r = libgamma_gamma_ramps64_initialise(&(out->table_sums[i].u64)); break; + case -1: r = libgamma_gamma_rampsf_initialise(&(out->table_sums[i].f)); break; + case -2: r = libgamma_gamma_rampsd_initialise(&(out->table_sums[i].d)); break; + default: + abort(); + } + if (r < 0) + return -1; + + out->table_filters[i] = *filter; + + return (ssize_t)i; +} + + +/** + * Recalculate the resulting gamma and + * update push the new gamam ramps to the CRTC + * + * @param output The output + * @param first_updated The index of the first added or removed filter + * @return Zero on success, -1 on error + */ +int flush_filters(struct output* output, size_t first_updated) +{ + /* TODO */ (void) output, (void) first_updated; + return 0; +} + |