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-rw-r--r--src/gamma-server/server.c157
-rw-r--r--src/gamma-server/server.h19
2 files changed, 165 insertions, 11 deletions
diff --git a/src/gamma-server/server.c b/src/gamma-server/server.c
index b6ec852..2be9264 100644
--- a/src/gamma-server/server.c
+++ b/src/gamma-server/server.c
@@ -18,7 +18,9 @@
#include "server.h"
#include "../state.h"
#include "../communication.h"
+#include "../crtc-server/server.h"
+#include <errno.h>
#include <string.h>
@@ -94,26 +96,159 @@ void set_gamma(const struct output* restrict output, const union gamma_ramps* re
{
int r = 0;
- if (connected)
+ if (!connected)
+ return;
+
+ switch (output->depth)
+ {
+ case 8: r = libgamma_crtc_set_gamma_ramps8(output->crtc, ramps->u8); break;
+ case 16: r = libgamma_crtc_set_gamma_ramps16(output->crtc, ramps->u16); break;
+ case 32: r = libgamma_crtc_set_gamma_ramps32(output->crtc, ramps->u32); break;
+ case 64: r = libgamma_crtc_set_gamma_ramps64(output->crtc, ramps->u64); break;
+ case -1: r = libgamma_crtc_set_gamma_rampsf(output->crtc, ramps->f); break;
+ case -2: r = libgamma_crtc_set_gamma_rampsd(output->crtc, ramps->d); break;
+ default:
+ abort();
+ }
+ if (r)
+ libgamma_perror(argv0, r); /* Not fatal */
+}
+
+
+
+/**
+ * Store all current gamma ramps
+ *
+ * @return Zero on success, -1 on error
+ */
+int initialise_gamma_info(void)
+{
+ libgamma_crtc_information_t info;
+ int saved_errno;
+ size_t i;
+
+ for (i = 0; i < outputs_n; i++)
{
- switch (output->depth)
+ libgamma_get_crtc_information(&info, crtcs + i,
+ LIBGAMMA_CRTC_INFO_EDID |
+ LIBGAMMA_CRTC_INFO_MACRO_RAMP |
+ LIBGAMMA_CRTC_INFO_GAMMA_SUPPORT |
+ LIBGAMMA_CRTC_INFO_CONNECTOR_NAME);
+ outputs[i].depth = info.gamma_depth_error ? 0 : info.gamma_depth;
+ outputs[i].red_size = info.gamma_size_error ? 0 : info.red_gamma_size;
+ outputs[i].green_size = info.gamma_size_error ? 0 : info.green_gamma_size;
+ outputs[i].blue_size = info.gamma_size_error ? 0 : info.blue_gamma_size;
+ outputs[i].supported = info.gamma_support_error ? 0 : info.gamma_support;
+ if (outputs[i].depth == 0 || outputs[i].red_size == 0 ||
+ outputs[i].green_size == 0 || outputs[i].blue_size == 0)
+ outputs[i].supported = 0;
+ outputs[i].name = get_crtc_name(&info, crtcs + i);
+ saved_errno = errno;
+ outputs[i].crtc = crtcs + i;
+ libgamma_crtc_information_destroy(&info);
+ outputs[i].ramps_size = outputs[i].red_size + outputs[i].green_size + outputs[i].blue_size;
+ switch (outputs[i].depth)
{
- case 8: r = libgamma_crtc_set_gamma_ramps8(output->crtc, ramps->u8); break;
- case 16: r = libgamma_crtc_set_gamma_ramps16(output->crtc, ramps->u16); break;
- case 32: r = libgamma_crtc_set_gamma_ramps32(output->crtc, ramps->u32); break;
- case 64: r = libgamma_crtc_set_gamma_ramps64(output->crtc, ramps->u64); break;
- case -1: r = libgamma_crtc_set_gamma_rampsf(output->crtc, ramps->f); break;
- case -2: r = libgamma_crtc_set_gamma_rampsd(output->crtc, ramps->d); break;
default:
- abort();
+ outputs[i].depth = 64;
+ /* Fall through */
+ case 8:
+ case 16:
+ case 32:
+ case 64: outputs[i].ramps_size *= (size_t)(outputs[i].depth / 8); break;
+ case -2: outputs[i].ramps_size *= sizeof(double); break;
+ case -1: outputs[i].ramps_size *= sizeof(float); break;
}
- if (r)
- libgamma_perror(argv0, r); /* Not fatal */
+ errno = saved_errno;
+ if (outputs[i].name == NULL)
+ return -1;
}
+
+ return 0;
}
/**
+ * Store all current gamma ramps
+ */
+void store_gamma(void)
+{
+ int gerror;
+ size_t i;
+
+#define LOAD_RAMPS(SUFFIX, MEMBER) \
+ do \
+ { \
+ libgamma_gamma_ramps##SUFFIX##_initialise(&(outputs[i].saved_ramps.MEMBER)); \
+ gerror = libgamma_crtc_get_gamma_ramps##SUFFIX(outputs[i].crtc, &(outputs[i].saved_ramps.MEMBER)); \
+ if (gerror) \
+ { \
+ libgamma_perror(argv0, gerror); \
+ outputs[i].supported = LIBGAMMA_NO; \
+ libgamma_gamma_ramps##SUFFIX##_destroy(&(outputs[i].saved_ramps.MEMBER)); \
+ memset(&(outputs[i].saved_ramps.MEMBER), 0, sizeof(outputs[i].saved_ramps.MEMBER)); \
+ } \
+ } \
+ while (0)
+
+ for (i = 0; i < outputs_n; i++)
+ {
+ if (outputs[i].supported == LIBGAMMA_NO)
+ continue;
+
+ switch (outputs[i].depth)
+ {
+ case 64: LOAD_RAMPS(64, u64); break;
+ case 32: LOAD_RAMPS(32, u32); break;
+ case 16: LOAD_RAMPS(16, u16); break;
+ case 8: LOAD_RAMPS( 8, u8); break;
+ case -2: LOAD_RAMPS(d, d); break;
+ case -1: LOAD_RAMPS(f, f); break;
+ default: /* impossible */ break;
+ }
+ }
+}
+
+
+/**
+ * Restore all gamma ramps
+ */
+void restore_gamma(void)
+{
+ size_t i;
+ int gerror;
+
+#define RESTORE_RAMPS(SUFFIX, MEMBER) \
+ do \
+ if (outputs[i].saved_ramps.MEMBER.red != NULL) \
+ { \
+ gerror = libgamma_crtc_set_gamma_ramps##SUFFIX(outputs[i].crtc, outputs[i].saved_ramps.MEMBER); \
+ if (gerror) \
+ libgamma_perror(argv0, gerror); \
+ } \
+ while (0)
+
+ for (i = 0; i < outputs_n; i++)
+ {
+ if (outputs[i].supported == LIBGAMMA_NO)
+ continue;
+
+ switch (outputs[i].depth)
+ {
+ case 64: RESTORE_RAMPS(64, u64); break;
+ case 32: RESTORE_RAMPS(32, u32); break;
+ case 16: RESTORE_RAMPS(16, u16); break;
+ case 8: RESTORE_RAMPS( 8, u8); break;
+ case -2: RESTORE_RAMPS(d, d); break;
+ case -1: RESTORE_RAMPS(f, f); break;
+ default: /* impossible */ break;
+ }
+ }
+}
+
+
+
+/**
* Disconnect from the site
*
* @return Zero on success, -1 on error
diff --git a/src/gamma-server/server.h b/src/gamma-server/server.h
index b84a836..96f47b8 100644
--- a/src/gamma-server/server.h
+++ b/src/gamma-server/server.h
@@ -56,6 +56,25 @@ int handle_get_gamma_info(size_t conn, const char* restrict message_id, const ch
GCC_ONLY(__attribute__((nonnull)))
void set_gamma(const struct output* restrict output, const union gamma_ramps* restrict ramps);
+
+/**
+ * Store all current gamma ramps
+ *
+ * @return Zero on success, -1 on error
+ */
+int initialise_gamma_info(void);
+
+/**
+ * Store all current gamma ramps
+ */
+void store_gamma(void);
+
+/**
+ * Restore all gamma ramps
+ */
+void restore_gamma(void);
+
+
/**
* Disconnect from the site
*
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-15 06:41:40 +0000