aboutsummaryrefslogtreecommitdiffstats
path: root/src/output.c
diff options
context:
space:
mode:
authorMattias Andrée <maandree@kth.se>2016-07-13 00:22:34 +0200
committerMattias Andrée <maandree@kth.se>2016-07-13 00:22:34 +0200
commit04498e56aeef5a3e1b89b07745ebc226bd059707 (patch)
treef4b0927cd64dcd6c6f4a64e574d9078bfe3fc6b9 /src/output.c
parentImplement main loop and handling of inbound connections + remove server_message (though like this was an mds server and not a stand-alone server) (diff)
downloadcoopgammad-04498e56aeef5a3e1b89b07745ebc226bd059707.tar.gz
coopgammad-04498e56aeef5a3e1b89b07745ebc226bd059707.tar.bz2
coopgammad-04498e56aeef5a3e1b89b07745ebc226bd059707.tar.xz
Work on handling requests
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'src/output.c')
-rw-r--r--src/output.c98
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;
+}
+