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-rw-r--r--src/blueshift_quartz_c.c255
1 files changed, 0 insertions, 255 deletions
diff --git a/src/blueshift_quartz_c.c b/src/blueshift_quartz_c.c
deleted file mode 100644
index 94d1291..0000000
--- a/src/blueshift_quartz_c.c
+++ /dev/null
@@ -1,255 +0,0 @@
-/**
- * Copyright © 2014 Mattias Andrée (maandree@member.fsf.org)
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-#include "blueshift_quartz_c.h"
-
-
-
-/**
- * The number of CRTC:s on the system
- */
-static uint32_t crtc_count = 0;
-
-/**
- * The CRTC:s on the system
- */
-static CGDirectDisplayID* crtcs = NULL;
-
-/**
- */
-static uint32_t* gamma_sizes = NULL;
-
-
-
-/**
- * Start stage of colour curve control
- *
- * @return Zero on success
- */
-int blueshift_quartz_open(void)
-{
- uint32_t cap = 4;
- uint32_t i;
- CGError r;
-
- crtcs = malloc((size_t)cap * sizeof(CGDirectDisplayID));
- if (crtcs == NULL)
- {
- perror("malloc");
- return -1;
- }
-
- for (;;)
- {
- r = CGGetOnlineDisplayList(cap, crtcs, &crtc_count);
- if (r != kCGErrorSuccess)
- {
- free(crtcs);
- crtcs = NULL;
- close_fake_quartz();
- }
- if (crtc_count == cap)
- {
- cap <<= 1;
- if (cap == 0) /* We could also test ~0, but it is still too many. */
- {
- fprintf(stderr, "An impossible number of CRTC:s are available according to Quartz\n");
- free(crtcs);
- close_fake_quartz();
- return -1;
- }
- crtcs = realloc(crtcs, (size_t)cap * sizeof(CGDirectDisplayID));
- if (crtcs == NULL)
- {
- perror("realloc");
- close_fake_quartz();
- return -1;
- }
- }
- else
- break;
- }
-
- if (crtc_count > 0)
- {
- gamma_sizes = malloc((size_t)crtc_count * sizeof(uint32_t));
- if (gamma_sizes == NULL)
- {
- perror("malloc");
- free(crtcs);
- close_fake_quartz();
- return -1;
- }
- for (i = 0; i < crtc_count; i++)
- {
- gamma_sizes[i] = CGDisplayGammaTableCapacity(crtcs[i]);
- if (gamma_sizes[i] < 2)
- {
- fprintf(stderr, "Quartz reported impossibly small gamma ramps.\n");
- free(gamma_sizes);
- free(crtcs);
- close_fake_quartz();
- return -1;
- }
- }
- }
-
- return 0;
-}
-
-
-/**
- * Get the number of CRTC:s on the system
- *
- * @return The number of CRTC:s on the system
- */
-int blueshift_quartz_crtc_count(void)
-{
- return (int)crtc_count;
-}
-
-
-/**
- * Gets the current colour curves
- *
- * @param use_crtc The CRTC to use
- * @return {the size of the each curve, *the red curve,
- * *the green curve, *the blue curve},
- * needs to be free:d. `NULL` on error.
- */
-uint16_t* blueshift_quartz_read(int use_crtc)
-{
- if ((use_crtc < 0) || (use_crtc >= (int)crtc_count))
- {
- fprintf(stderr, "CRTC %i does not exist\n", use_crtc);
- return NULL;
- }
- else
- {
- uint32_t gamma_size = gamma_sizes[use_crtc];
- uint16_t* rc = malloc((1 + 3 * (size_t)(gamma_size)) * sizeof(uint16_t));
- uint32_t i;
- CGGammaValue* red;
- CGGammaValue* green;
- CGGammaValue* blue;
- CGError r;
- uint32_t _;
-
- if (rc == NULL)
- {
- perror("malloc");
- return NULL;
- }
-
- red = malloc((3 * (size_t)gamma_size) * sizeof(CGGammaValue));
- green = red + (size_t)gamma_size;
- blue = green + (size_t)gamma_size;
-
- if (red == NULL)
- {
- perror("malloc");
- free(rc);
- return NULL;
- }
-
- r = CGGetDisplayTransferByTable(crtcs[use_crtc], gamma_size, red, green, blue, &_);
- if (r != kCGErrorSuccess)
- {
- fprintf(stderr, "Failed to get gamma ramps for CRTC %i\n", use_crtc);
- free(red);
- free(rc);
- return 0;
- }
-
- *rc++ = gamma_sizes[use_crtc];
- for (i = 0; i < gamma_size; i++)
- {
- int32_t v = red[i] * UINT16_MAX;
- rc[i] = (uint16_t)(v < 0 ? 0 : v > UINT16_MAX ? UINT16_MAX : v);
- }
- rc += gamma_size;
- for (i = 0; i < gamma_size; i++)
- {
- int32_t v = green[i] * UINT16_MAX;
- rc[i] = (uint16_t)(v < 0 ? 0 : v > UINT16_MAX ? UINT16_MAX : v);
- }
- rc += gamma_size;
- for (i = 0; i < gamma_size; i++)
- {
- int32_t v = blue[i] * UINT16_MAX;
- rc[i] = (uint16_t)(v < 0 ? 0 : v > UINT16_MAX ? UINT16_MAX : v);
- }
-
- return rc - (1 + 2 * gamma_size);
- }
-}
-
-
-/**
- * Apply stage of colour curve control
- *
- * @param use_crtc The CRTC to use, -1 for all
- * @param r_curve The red colour curve
- * @param g_curve The green colour curve
- * @param b_curve The blue colour curve
- * @return Zero on success
- */
-int blueshift_quartz_apply(int use_crtc, float* r_curves, float* g_curves, float* b_curves)
-{
- if (use_crtc < (int)crtc_count)
- {
- int c = use_crtc < 0 ? 0 : use_crtc;
- int n = use_crtc < 0 ? (int)crtc_count : (use_crtc + 1);
- CGError r = kCGErrorSuccess;
-
- for (; c < n; c++)
- {
- r = CGSetDisplayTransferByTable(crtcs[c], gamma_sizes[c], r_curves, g_curves, b_curves);
- if (r != kCGErrorSuccess)
- {
- fprintf(stderr, "Failed to set gamma ramps for CRTC %i\n", c);
- break;
- }
- }
- return r != kCGErrorSuccess;
- }
- fprintf(stderr, "CRTC %i does not exist\n", use_crtc);
- return -1;
-}
-
-
-/**
- * Resource freeing stage of colour curve control
- */
-void blueshift_quartz_close(void)
-{
- if (crtcs != NULL)
- free(crtcs);
- if (gamma_sizes != NULL)
- free(gamma_sizes);
- close_fake_quartz();
-}
-
-
-/**
- * Restore all gamma curves (on each and every CRTC on the system)
- * to the settings on ColorSync
- */
-void blueshift_quartz_restore(void)
-{
- CGDisplayRestoreColorSyncSettings();
-}
-