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Diffstat (limited to 'src/gamma-quartz-cg.c')
| -rw-r--r-- | src/gamma-quartz-cg.c | 353 |
1 files changed, 0 insertions, 353 deletions
diff --git a/src/gamma-quartz-cg.c b/src/gamma-quartz-cg.c deleted file mode 100644 index 3832ca5..0000000 --- a/src/gamma-quartz-cg.c +++ /dev/null @@ -1,353 +0,0 @@ -/** - * libgamma — Display server abstraction layer for gamma ramp adjustments - * Copyright © 2014 Mattias Andrée (maandree@member.fsf.org) - * - * This library 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 library 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 library. If not, see <http://www.gnu.org/licenses/>. - */ -#ifndef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS -# error Compiling gamma-quartz-cg.c without HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS -#endif - -#include "gamma-quartz-cg.h" - -#include "libgamma-error.h" - -#ifdef FAKE_LIBGAMMA_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> - - -/** - * Return the capabilities of the adjustment method. - * - * @param this The data structure to fill with the method's capabilities. - */ -void libgamma_quartz_cg_method_capabilities(libgamma_method_capabilities_t* restrict this) -{ - this->crtc_information = LIBGAMMA_CRTC_INFO_GAMMA_SIZE - | LIBGAMMA_CRTC_INFO_GAMMA_DEPTH; - this->default_site_known = 1; - this->multiple_sites = 0; - this->multiple_partitions = 0; - this->multiple_crtcs = 1; - this->partitions_are_graphics_cards = 0; - this->site_restore = 1; - this->partition_restore = 1; - this->crtc_restore = 0; - this->identical_gamma_sizes = 1; - this->fixed_gamma_size = 0; - this->fixed_gamma_depth = 1; -#ifdef FAKE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - this->fake = 1; -# ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - this->real = 1; -# else - this->real = 0; -# endif -#else - this->fake = 0; - this->real = 1; -#endif -} - - -/** - * Initialise an allocated site state. - * - * @param this The site state to initialise. - * @param site The site identifier, unless it is `NULL` it must a - * `free`:able. One the state is destroyed the library - * will attempt to free it. There you should not free - * it yourself, and it must not be a string constant - * or allocate on the stack. Note however that it will - * not be free:d if this function fails. - * @return Zero on success, otherwise (negative) the value of an - * error identifier provided by this library. - */ -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; -} - - -/** - * Release all resources held by a site state. - * - * @param this The site state. - */ -void libgamma_quartz_cg_site_destroy(libgamma_site_state_t* restrict this) -{ - (void) this; - close_fake_quartz_cg(); -} - - -/** - * Restore the gamma ramps all CRTC:s with a site to the system settings. - * - * @param this The site state. - * @return Zero on success, otherwise (negative) the value of an - * error identifier provided by this library. - */ -int libgamma_quartz_cg_site_restore(libgamma_site_state_t* restrict this) -{ - (void) this; - CGDisplayRestoreColorSyncSettings(); - return 0; -} - - - -/** - * Initialise an allocated partition state. - * - * @param this The partition state to initialise. - * @param site The site state for the site that the partition belongs to. - * @param partition The the index of the partition within the site. - * @return Zero on success, otherwise (negative) the value of an - * error identifier provided by this library. - */ -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; -} - - -/** - * Release all resources held by a partition state. - * - * @param this The partition state. - */ -void libgamma_quartz_cg_partition_destroy(libgamma_partition_state_t* restrict this) -{ - free(this->data); -} - - -/** - * Restore the gamma ramps all CRTC:s with a partition to the system settings. - * - * @param this The partition state. - * @return Zero on success, otherwise (negative) the value of an - * error identifier provided by this library. - */ -int libgamma_quartz_cg_partition_restore(libgamma_partition_state_t* restrict this) -{ - return libgamma_quartz_cg_site_restore(this->site); -} - - - -/** - * Initialise an allocated CRTC state. - * - * @param this The CRTC state to initialise. - * @param partition The partition state for the partition that the CRTC belongs to. - * @param crtc The the index of the CRTC within the site. - * @return Zero on success, otherwise (negative) the value of an - * error identifier provided by this library. - */ -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; -} - - -/** - * Release all resources held by a CRTC state. - * - * @param this The CRTC state. - */ -void libgamma_quartz_cg_crtc_destroy(libgamma_crtc_state_t* restrict this) -{ - (void) this; -} - - -/** - * Restore the gamma ramps for a CRTC to the system settings for that CRTC. - * - * @param this The CRTC state. - * @return Zero on success, otherwise (negative) the value of an - * error identifier provided by this library. - */ -int libgamma_quartz_cg_crtc_restore(libgamma_crtc_state_t* restrict this) -{ - (void) this; - return errno = ENOTSUP, LIBGAMMA_ERRNO_SET; -} - - - -/** - * Read information about a CRTC. - * - * @param this Instance of a data structure to fill with the information about the CRTC. - * @param crtc The state of the CRTC whose information should be read. - * @param fields OR:ed identifiers for the information about the CRTC that should be read. - * @return Zero on success, -1 on error. On error refer to the error reports in `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 (LIBGAMMA_CRTC_INFO_GAMMA_SIZE | LIBGAMMA_CRTC_INFO_GAMMA_DEPTH) - -#define _E(FIELD) ((fields & FIELD) ? LIBGAMMA_CRTC_INFO_NOT_SUPPORTED : 0) - - this->edid_error = _E(LIBGAMMA_CRTC_INFO_EDID); - this->width_mm_error = _E(LIBGAMMA_CRTC_INFO_WIDTH_MM); - this->height_mm_error = _E(LIBGAMMA_CRTC_INFO_HEIGHT_MM); - this->width_mm_edid_error = _E(LIBGAMMA_CRTC_INFO_WIDTH_MM_EDID); - this->height_mm_edid_error = _E(LIBGAMMA_CRTC_INFO_HEIGHT_MM_EDID); - if ((fields & LIBGAMMA_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(LIBGAMMA_CRTC_INFO_GAMMA_SUPPORT); - this->subpixel_order_error = _E(LIBGAMMA_CRTC_INFO_SUBPIXEL_ORDER); - this->active_error = _E(LIBGAMMA_CRTC_INFO_ACTIVE); - this->connector_name_error = _E(LIBGAMMA_CRTC_INFO_CONNECTOR_NAME); - this->connector_type_error = _E(LIBGAMMA_CRTC_INFO_CONNECTOR_TYPE); - this->gamma_error = _E(LIBGAMMA_CRTC_INFO_GAMMA); - -#undef _E - - return this->gamma_size_error ? -1 : (fields & ~SUPPORTED_FIELDS) ? -1 : 0; - -#undef SUPPORTED_FIELDS -} - - -/** - * Get current the gamma ramps for a CRTC, `float` version. - * - * @param this The CRTC state. - * @param ramps The gamma ramps to fill with the current values. - * @return Zero on success, otherwise (negative) the value of an - * error identifier provided by this library. - */ -int libgamma_quartz_cg_crtc_get_gamma_rampsf(libgamma_crtc_state_t* restrict this, - libgamma_gamma_rampsf_t* restrict ramps) -{ - CGDirectDisplayID* restrict 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; -} - - -/** - * Set the gamma ramps for a CRTC, `float` version. - * - * @param this The CRTC state. - * @param ramps The gamma ramps to apply. - * @return Zero on success, otherwise (negative) the value of an - * error identifier provided by this library. - */ -int libgamma_quartz_cg_crtc_set_gamma_rampsf(libgamma_crtc_state_t* restrict this, - libgamma_gamma_rampsf_t ramps) -{ - CGDirectDisplayID* restrict 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; -} - |