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-rw-r--r--src/gamma-quartz-cg.c128
1 files changed, 128 insertions, 0 deletions
diff --git a/src/gamma-quartz-cg.c b/src/gamma-quartz-cg.c
index 598780f..99d46e1 100644
--- a/src/gamma-quartz-cg.c
+++ b/src/gamma-quartz-cg.c
@@ -23,6 +23,14 @@
#include "libgamma-error.h"
+#ifdef FAKE_GAMMA_METHOD_QUARTZ_CORE_GRAPHICS
+# include "fake-quartz-cg.h"
+#else
+# include <CoreGraphics/CGDirectDisplay.h>
+# define close_fake_quartz_cg() /* For compatibility with "fake-quartz-cg.h". */
+#endif
+
+#include <stdlib.h>
#include <errno.h>
@@ -76,6 +84,11 @@ void libgamma_quartz_cg_method_capabilities(libgamma_method_capabilities_t* rest
int libgamma_quartz_cg_site_initialise(libgamma_site_state_t* restrict this,
char* restrict site)
{
+ if (site != NULL)
+ return LIBGAMMA_NO_SUCH_SITE;
+
+ this->partitions_available = 1;
+ return 0;
}
@@ -86,6 +99,8 @@ int libgamma_quartz_cg_site_initialise(libgamma_site_state_t* restrict this,
*/
void libgamma_quartz_cg_site_destroy(libgamma_site_state_t* restrict this)
{
+ (void) this;
+ close_fake_quartz_cg();
}
@@ -98,6 +113,9 @@ void libgamma_quartz_cg_site_destroy(libgamma_site_state_t* restrict this)
*/
int libgamma_quartz_cg_site_restore(libgamma_site_state_t* restrict this)
{
+ (void) this;
+ CGDisplayRestoreColorSyncSettings();
+ return 0;
}
@@ -114,6 +132,49 @@ int libgamma_quartz_cg_site_restore(libgamma_site_state_t* restrict this)
int libgamma_quartz_cg_partition_initialise(libgamma_partition_state_t* restrict this,
libgamma_site_state_t* restrict site, size_t partition)
{
+ uint32_t cap = 4, n;
+ CGDirectDisplayID* crtcs;
+ CGDirectDisplayID* crtcs_old;
+ CGError r;
+
+ (void) site;
+
+ this->data = NULL;
+
+ if (partition != 0)
+ return LIBGAMMA_NO_SUCH_PARTITION;
+
+ crtcs = malloc((size_t)cap * sizeof(CGDirectDisplayID));
+ if (crtcs == NULL)
+ return LIBGAMMA_ERRNO_SET;
+
+ for (;;)
+ {
+ r = CGGetOnlineDisplayList(cap, crtcs, &n);
+ if (r != kCGErrorSuccess)
+ {
+ free(crtcs);
+ return LIBGAMMA_LIST_CRTCS_FAILED;
+ }
+ if (n < cap)
+ break;
+ if (cap == 0) /* We could also test ~0, but it is still too many. */
+ {
+ free(crtcs);
+ return LIBGAMMA_IMPOSSIBLE_AMOUNT;
+ }
+ crtcs_old = crtcs;
+ crtcs = realloc(crtcs, (size_t)cap * sizeof(CGDirectDisplayID));
+ if (crtcs)
+ {
+ free(crtcs_old);
+ return LIBGAMMA_ERRNO_SET;
+ }
+ }
+
+ this->data = crtcs;
+ this->crtcs_available = (size_t)n;
+ return 0;
}
@@ -124,6 +185,7 @@ int libgamma_quartz_cg_partition_initialise(libgamma_partition_state_t* restrict
*/
void libgamma_quartz_cg_partition_destroy(libgamma_partition_state_t* restrict this)
{
+ free(this->data);
}
@@ -153,6 +215,10 @@ int libgamma_quartz_cg_partition_restore(libgamma_partition_state_t* restrict th
int libgamma_quartz_cg_crtc_initialise(libgamma_crtc_state_t* restrict this,
libgamma_partition_state_t* restrict partition, size_t crtc)
{
+ (void) this;
+ if (crtc >= partition->crtcs_available)
+ return LIBGAMMA_NO_SUCH_CRTC;
+ return 0;
}
@@ -163,6 +229,7 @@ int libgamma_quartz_cg_crtc_initialise(libgamma_crtc_state_t* restrict this,
*/
void libgamma_quartz_cg_crtc_destroy(libgamma_crtc_state_t* restrict this)
{
+ (void) this;
}
@@ -192,6 +259,41 @@ int libgamma_quartz_cg_crtc_restore(libgamma_crtc_state_t* restrict this)
int libgamma_quartz_cg_get_crtc_information(libgamma_crtc_information_t* restrict this,
libgamma_crtc_state_t* restrict crtc, int32_t fields)
{
+#define SUPPORTED_FIELDS (CRTC_INFO_GAMMA_SIZE | CRTC_INFO_GAMMA_DEPTH)
+
+#define _E(FIELD) ((fields & FIELD) ? LIBGAMMA_CRTC_INFO_NOT_SUPPORTED : 0)
+
+ this->edid_error = _E(CRTC_INFO_EDID);
+ this->width_mm_error = _E(CRTC_INFO_WIDTH_MM);
+ this->height_mm_error = _E(CRTC_INFO_HEIGHT_MM);
+ this->width_mm_edid_error = _E(CRTC_INFO_WIDTH_MM_EDID);
+ this->height_mm_edid_error = _E(CRTC_INFO_HEIGHT_MM_EDID);
+ if ((fields & CRTC_INFO_GAMMA_SIZE))
+ {
+ CGDirectDisplayID* crtcs = crtc->partition->data;
+ CGDirectDisplayID crtc_id = crtcs[crtc->crtc];
+ size_t gamma_size = CGDisplayGammaTableCapacity(crtc_id);;
+ this->red_gamma_size = (size_t)gamma_size;
+ this->green_gamma_size = this->red_gamma_size;
+ this->blue_gamma_size = this->red_gamma_size;
+ this->gamma_size_error = gamma_size < 2 ? LIBGAMMA_SINGLETON_GAMMA_RAMP : 0;
+ }
+ else
+ this->gamma_size_error = 0;
+ this->gamma_depth = -1;
+ this->gamma_depth_error = 0;
+ this->gamma_support_error = _E(CRTC_INFO_GAMMA_SUPPORT);
+ this->subpixel_order_error = _E(CRTC_INFO_SUBPIXEL_ORDER);
+ this->active_error = _E(CRTC_INFO_ACTIVE);
+ this->connector_name_error = _E(CRTC_INFO_CONNECTOR_NAME);
+ this->connector_type_error = _E(CRTC_INFO_CONNECTOR_TYPE);
+ this->gamma_error = _E(CRTC_INFO_GAMMA);
+
+#undef _E
+
+ return this->gamma_size_error ? -1 : (fields & ~SUPPORTED_FIELDS) ? -1 : 0;
+
+#undef SUPPORTED_FIELDS
}
@@ -206,6 +308,22 @@ int libgamma_quartz_cg_get_crtc_information(libgamma_crtc_information_t* restric
int libgamma_quartz_cg_crtc_get_gamma_rampsf(libgamma_crtc_state_t* restrict this,
libgamma_gamma_rampsf_t* restrict ramps)
{
+ CGDirectDisplayID* crtcs = this->partition->data;
+ CGDirectDisplayID crtc_id = crtcs[this->crtc];
+ uint32_t gamma_size_out;
+ CGError r;
+#ifdef DEBUG
+ if ((ramps->red_size != ramps->green_size) ||
+ (ramps->red_size != ramps->blue_size))
+ return LIBGAMMA_MIXED_GAMMA_RAMP_SIZE;
+#endif
+ r = CGGetDisplayTransferByTable(crtc_id, (uint32_t)(ramps->red_size),
+ ramps->red, ramps->green, ramps->blue, &gamma_size_out);
+ if (r != kCGErrorSuccess)
+ return LIBGAMMA_GAMMA_RAMP_READ_FAILED;
+ if (gamma_size_out != ramps->red_size)
+ return LIBGAMMA_GAMMA_RAMP_SIZE_CHANGED;
+ return 0;
}
@@ -220,5 +338,15 @@ int libgamma_quartz_cg_crtc_get_gamma_rampsf(libgamma_crtc_state_t* restrict thi
int libgamma_quartz_cg_crtc_set_gamma_rampsf(libgamma_crtc_state_t* restrict this,
libgamma_gamma_rampsf_t ramps)
{
+ CGDirectDisplayID* crtcs = this->partition->data;
+ CGDirectDisplayID crtc_id = crtcs[this->crtc];
+ CGError r;
+#ifdef DEBUG
+ if ((ramps.red_size != ramps.green_size) || (ramps.red_size != ramps.blue_size))
+ return LIBGAMMA_MIXED_GAMMA_RAMP_SIZE;
+#endif
+ r = CGSetDisplayTransferByTable(crtc_id, (uint32_t)(ramps.red_size),
+ ramps.red, ramps.green, ramps.blue);
+ return r == kCGErrorSuccess ? 0 : LIBGAMMA_GAMMA_RAMP_WRITE_FAILED;
}