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authorMattias Andrée <maandree@kth.se>2016-07-17 21:20:14 +0200
committerMattias Andrée <maandree@kth.se>2016-07-17 21:20:14 +0200
commit5b804da16b09f97ad0c944daf35900a796f3bc66 (patch)
tree6da26f1f2707283a3fd00ac8effecde27addd345 /src/util.c
parentEven more refactoring (diff)
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When reconnecting, reapply the ramps
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'src/util.c')
-rw-r--r--src/util.c51
1 files changed, 51 insertions, 0 deletions
diff --git a/src/util.c b/src/util.c
index c116998..3e2bdd2 100644
--- a/src/util.c
+++ b/src/util.c
@@ -17,6 +17,8 @@
*/
#include "util.h"
+#include <libclut.h>
+
#include <sys/stat.h>
#include <errno.h>
#include <stdlib.h>
@@ -265,3 +267,52 @@ int verify_utf8(const char* restrict string, int allow_modified_nul)
return read_bytes == 0 ? 0 : -1;
}
+
+/**
+ * Make identity mapping ramps
+ *
+ * @param ramps Output parameter for the ramps
+ * @param output The output for which the ramps shall be configured
+ * @return Zero on success, -1 on error
+ */
+int make_plain_ramps(union gamma_ramps* restrict ramps, struct output* restrict output)
+{
+ COPY_RAMP_SIZES(&(ramps->u8), output);
+ switch (output->depth)
+ {
+ case 8:
+ if (libgamma_gamma_ramps8_initialise(&(ramps->u8)))
+ return -1;
+ libclut_start_over(&(ramps->u8), UINT8_MAX, uint8_t, 1, 1, 1);
+ break;
+ case 16:
+ if (libgamma_gamma_ramps16_initialise(&(ramps->u16)))
+ return -1;
+ libclut_start_over(&(ramps->u16), UINT16_MAX, uint16_t, 1, 1, 1);
+ break;
+ case 32:
+ if (libgamma_gamma_ramps32_initialise(&(ramps->u32)))
+ return -1;
+ libclut_start_over(&(ramps->u32), UINT32_MAX, uint32_t, 1, 1, 1);
+ break;
+ case 64:
+ if (libgamma_gamma_ramps64_initialise(&(ramps->u64)))
+ return -1;
+ libclut_start_over(&(ramps->u64), UINT64_MAX, uint64_t, 1, 1, 1);
+ break;
+ case -1:
+ if (libgamma_gamma_rampsf_initialise(&(ramps->f)))
+ return -1;
+ libclut_start_over(&(ramps->f), 1.0f, float, 1, 1, 1);
+ break;
+ case -2:
+ if (libgamma_gamma_rampsd_initialise(&(ramps->d)))
+ return -1;
+ libclut_start_over(&(ramps->d), (double)1, double, 1, 1, 1);
+ break;
+ default:
+ abort();
+ }
+ return 0;
+}
+