diff options
Diffstat (limited to 'src/lib/fake-quartz-cg.c')
| -rw-r--r-- | src/lib/fake-quartz-cg.c | 629 |
1 files changed, 303 insertions, 326 deletions
diff --git a/src/lib/fake-quartz-cg.c b/src/lib/fake-quartz-cg.c index e7cbbc9..75f1fb2 100644 --- a/src/lib/fake-quartz-cg.c +++ b/src/lib/fake-quartz-cg.c @@ -1,20 +1,4 @@ -/** - * libgamma -- Display server abstraction layer for gamma ramp adjustments - * Copyright (C) 2014, 2015 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/>. - */ +/* See LICENSE file for copyright and license details. */ #ifndef FAKE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS # error Compiling fake-quartz-cg.c without FAKE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS #endif @@ -34,129 +18,132 @@ #ifndef HAVE_LIBGAMMA_METHOD_X_RANDR -/* Use dummy translation. */ +/* Use dummy translation */ /** - * Get a list of all online displays on the system. + * Get a list of all online displays on the system * - * @param max_size The number of elements allocated for `displays_out`. - * @param displays_out List ot fill with the ID for each online display on the system. - * @param count_out Output parameter for the number of elements stored in `displays_out`. + * @param max_size The number of elements allocated for `displays_out` + * @param displays_out List ot fill with the ID for each online display on the system + * @param count_out Output parameter for the number of elements stored in `displays_out` * if `displays_out` is too small to fit all display ID:s, - * `*count_out` will be `max_size`. - * @return `kCGErrorSuccess` on success, and error number of failure. + * `*count_out` will be `max_size` + * @return `kCGErrorSuccess` on success, and error number of failure */ -CGError CGGetOnlineDisplayList(uint32_t max_size, - CGDirectDisplayID* restrict displays_out, uint32_t* restrict count_out) +CGError +CGGetOnlineDisplayList(uint32_t max_size, CGDirectDisplayID *restrict displays_out, uint32_t *restrict count_out) { - /* Pretend that we have 2 CRTC:s */ - uint32_t i; - for (i = 0; (i < max_size) && (i < 2); i++) - displays_out[i] = (CGDirectDisplayID)i; - *count_out = i; - return kCGErrorSuccess; + /* Pretend that we have 2 CRTC:s */ + uint32_t i; + for (i = 0; i < max_size && i < 2; i++) + displays_out[i] = (CGDirectDisplayID)i; + *count_out = i; + return kCGErrorSuccess; } /** - * Set the gamma ramps for a display. + * Set the gamma ramps for a display * - * @param display The ID of the display. - * @param gamma_size The number of stops in gamma ramps. - * @param red The gamma ramp for the red channel. - * @param green The gamma ramp for the green channel. - * @param blue The gamma ramp for the blue channel. - * @return `kCGErrorSuccess` on success, and error number of failure. + * @param display The ID of the display + * @param gamma_size The number of stops in gamma ramps + * @param red The gamma ramp for the red channel + * @param green The gamma ramp for the green channel + * @param blue The gamma ramp for the blue channel + * @return `kCGErrorSuccess` on success, and error number of failure */ -CGError CGSetDisplayTransferByTable(CGDirectDisplayID display, uint32_t gamma_size, const CGGammaValue* red, - const CGGammaValue* green, const CGGammaValue* blue) +CGError +CGSetDisplayTransferByTable(CGDirectDisplayID display, uint32_t gamma_size, const CGGammaValue *red, + const CGGammaValue *green, const CGGammaValue *blue) { - (void) display; - (void) red; - (void) green; - (void) blue; - - /* We pretend that our gamma ramps are of size 256. */ - if (gamma_size != 256) - { - fprintf(stderr, "Gamma size should be 256.\n"); - abort(); - } - return kCGErrorSuccess; + (void) display; + (void) red; + (void) green; + (void) blue; + + /* We pretend that our gamma ramps are of size 256 */ + if (gamma_size != 256) { + fprintf(stderr, "Gamma size should be 256\n"); + abort(); + } + return kCGErrorSuccess; } /** - * Get the current gamma ramps for a display. + * Get the current gamma ramps for a display * - * @param display The ID of the display. - * @param gamma_size The number of stops you have allocated for the gamma ramps. - * @param red Table allocated for the gamma ramp for the red channel. - * @param green Table allocated for the gamma ramp for the green channel. - * @param blue Table allocated for the gamma ramp for the blue channel. - * @param gamma_size_out Output parameter for the actual number of stops in the gamma ramps. - * @return `kCGErrorSuccess` on success, and error number of failure. + * @param display The ID of the display + * @param gamma_size The number of stops you have allocated for the gamma ramps + * @param red Table allocated for the gamma ramp for the red channel + * @param green Table allocated for the gamma ramp for the green channel + * @param blue Table allocated for the gamma ramp for the blue channel + * @param gamma_size_out Output parameter for the actual number of stops in the gamma ramps + * @return `kCGErrorSuccess` on success, and error number of failure */ -CGError CGGetDisplayTransferByTable(CGDirectDisplayID display, uint32_t gamma_size, - CGGammaValue* restrict red, CGGammaValue* restrict green, - CGGammaValue* restrict blue, uint32_t* restrict gamma_size_out) +CGError +CGGetDisplayTransferByTable(CGDirectDisplayID display, uint32_t gamma_size, CGGammaValue *restrict red, + CGGammaValue *restrict green, CGGammaValue *restrict blue, uint32_t *restrict gamma_size_out) { - long i; - (void) display; - - /* We pretend that our gamma ramps are of size 256. */ - if (gamma_size != 256) - { - fprintf(stderr, "Gamma size should be 256.\n"); - abort(); - } - - /* We pretend that our gamma ramps are of size 256. */ - *gamma_size_out = 256; - - /* Pretend that our gamma ramps are identity mappings. */ - for (i = 0; i < 256; i++) - red[i] = green[i] = blue[i] = (CGGammaValue)i / 255; - - return kCGErrorSuccess; + long i; + + (void) display; + + /* We pretend that our gamma ramps are of size 256 */ + if (gamma_size != 256) { + fprintf(stderr, "Gamma size should be 256\n"); + abort(); + } + + /* We pretend that our gamma ramps are of size 256 */ + *gamma_size_out = 256; + + /* Pretend that our gamma ramps are identity mappings */ + for (i = 0; i < 256; i++) + red[i] = green[i] = blue[i] = (CGGammaValue)i / 255; + + return kCGErrorSuccess; } /** - * Restore each display's gamma ramps to the settings in ColorSync. + * Restore each display's gamma ramps to the settings in ColorSync */ -void CGDisplayRestoreColorSyncSettings(void) +void +CGDisplayRestoreColorSyncSettings(void) { - /* Do nothing. */ + /* Do nothing */ } /** - * Get the number of stops in the gamma ramps for a display. + * Get the number of stops in the gamma ramps for a display * - * @param display The ID of the display. - * @return The number of stops in the gamma ramps. + * @param display The ID of the display + * @return The number of stops in the gamma ramps */ -uint32_t CGDisplayGammaTableCapacity(CGDirectDisplayID display) +uint32_t +CGDisplayGammaTableCapacity(CGDirectDisplayID display) { - /* We pretend that our gamma ramps are of size 256. */ - (void) display; - return 256; + /* We pretend that our gamma ramps are of size 256 */ + (void) display; + return 256; } /** - * Release resources used by the backend. + * Release resources used by the backend */ -void close_fake_quartz(void) +void +close_fake_quartz(void) { - /* Do nothing. */ + /* Do nothing */ } #else -/* Use translation to X RandR. */ +/* Use translation to X RandR */ #include <xcb/xcb.h> @@ -165,306 +152,296 @@ void close_fake_quartz(void) /** - * Connection to the X RandR display. + * Connection to the X RandR display */ -static xcb_connection_t* restrict connection = NULL; +static xcb_connection_t *restrict connection = NULL; /** - * Resouces for the screen. - * We only have one screen, again this is a very sloppy compatibility layer. + * Resouces for the screen + * + * We only have one screen, again this + * is a very sloppy compatibility layer */ -static xcb_randr_get_screen_resources_current_reply_t* restrict res_reply = NULL; +static xcb_randr_get_screen_resources_current_reply_t *restrict res_reply = NULL; /** - * The number of available CRTC:s. + * The number of available CRTC:s */ static uint32_t crtc_count = 0; /** - * List of X RandR CRTC:s. + * List of X RandR CRTC:s */ -static xcb_randr_crtc_t* restrict crtcs = NULL; +static xcb_randr_crtc_t *restrict crtcs = NULL; /** - * The original gamma ramps, used to emulate gamma ramp restoration to system settings. + * The original gamma ramps, used to emulate gamma ramp restoration to system settings */ -static uint16_t* restrict original_ramps = NULL; +static uint16_t *restrict original_ramps = NULL; -/* xcb violates the rule to never return struct:s. */ -#ifdef __GCC__ +/* xcb violates the rule to never return struct:s */ +#ifdef __GNUC__ # pragma GCC diagnostic push # pragma GCC diagnostic ignored "-Waggregate-return" #endif /** - * Get a list of all online displays on the system. + * Get a list of all online displays on the system * - * @param max_size The number of elements allocated for `displays_out`. - * @param displays_out List ot fill with the ID for each online display on the system. - * @param count_out Output parameter for the number of elements stored in `displays_out`. + * @param max_size The number of elements allocated for `displays_out` + * @param displays_out List ot fill with the ID for each online display on the system + * @param count_out Output parameter for the number of elements stored in `displays_out`, * if `displays_out` is too small to fit all display ID:s, - * `*count_out` will be `max_size`. - * @return `kCGErrorSuccess` on success, and error number of failure. + * `*count_out` will be `max_size` + * @return `kCGErrorSuccess` on success, and error number of failure */ -CGError CGGetOnlineDisplayList(uint32_t max_size, - CGDirectDisplayID* restrict displays_out, uint32_t* restrict count_out) +CGError +CGGetOnlineDisplayList(uint32_t max_size, CGDirectDisplayID *restrict displays_out, uint32_t *restrict count_out) { - uint32_t i; - - /* Connect to the display and get screen data if not already done so. */ - if (connection == NULL) - { - xcb_generic_error_t* error; - xcb_screen_iterator_t iter; - xcb_randr_get_screen_resources_current_cookie_t res_cookie; - xcb_randr_get_crtc_gamma_cookie_t gamma_cookie; - xcb_randr_get_crtc_gamma_reply_t* restrict gamma_reply; - - /* Connect to the display. */ - connection = xcb_connect(NULL, NULL); - /* Get the first screen. */ - iter = xcb_setup_roots_iterator(xcb_get_setup(connection)); - /* Get the resources of the screen. */ - res_cookie = xcb_randr_get_screen_resources_current(connection, iter.data->root); - res_reply = xcb_randr_get_screen_resources_current_reply(connection, res_cookie, &error); - if (error) - { - fprintf(stderr, "Failed to open X connection.\n"); - xcb_disconnect(connection); - crtc_count = 0; - return ~kCGErrorSuccess; - } - - /* Get the number of CRTC:s. */ - crtc_count = (uint32_t)(res_reply->num_crtcs); - /* Get the CRTC ID:s. */ - crtcs = xcb_randr_get_screen_resources_current_crtcs(res_reply); - - /* Allocate memory where we store the - gamma ramps as they looked when this - adjustment method was first used. - This is used to emulate the functionality - of `CGDisplayRestoreColorSyncSettings` - which restore the all gamma ramps on - the system to the system settnigs. - */ - original_ramps = malloc(crtc_count * 3 * 256 * sizeof(uint16_t)); - if (original_ramps == NULL) - { - perror("malloc"); - xcb_disconnect(connection); - crtc_count = 0; - return ~kCGErrorSuccess; - } - - /* Fill the gamma ramps we just allocated. */ - for (i = 0; i < crtc_count; i++) - { - /* Read current gamma ramps. */ - gamma_cookie = xcb_randr_get_crtc_gamma(connection, crtcs[i]); - gamma_reply = xcb_randr_get_crtc_gamma_reply(connection, gamma_cookie, &error); - if (error) - { - fprintf(stderr, "Failed to read gamma ramps.\n"); - xcb_disconnect(connection); - crtc_count = 0; - return ~kCGErrorSuccess; - } - - /* Copy over the gamma ramps to the memory area we have allocated. */ + xcb_generic_error_t *error; + xcb_screen_iterator_t iter; + xcb_randr_get_screen_resources_current_cookie_t res_cookie; + xcb_randr_get_crtc_gamma_cookie_t gamma_cookie; + xcb_randr_get_crtc_gamma_reply_t *restrict gamma_reply; + uint32_t i; + + /* Connect to the display and get screen data if not already done so */ + if (!connection) { + /* Connect to the display */ + connection = xcb_connect(NULL, NULL); + /* Get the first screen */ + iter = xcb_setup_roots_iterator(xcb_get_setup(connection)); + /* Get the resources of the screen */ + res_cookie = xcb_randr_get_screen_resources_current(connection, iter.data->root); + res_reply = xcb_randr_get_screen_resources_current_reply(connection, res_cookie, &error); + if (error) { + fprintf(stderr, "Failed to open X connection\n"); + xcb_disconnect(connection); + crtc_count = 0; + return ~kCGErrorSuccess; + } + + /* Get the number of CRTC:s */ + crtc_count = (uint32_t)(res_reply->num_crtcs); + /* Get the CRTC ID:s */ + crtcs = xcb_randr_get_screen_resources_current_crtcs(res_reply); + + /* Allocate memory where we store the gamma ramps as + * they looked when this adjustment method was first + * used. This is used to emulate the functionality of + * `CGDisplayRestoreColorSyncSettings` which restore the + * all gamma ramps on the system to the system settnigs. + */ + original_ramps = malloc(crtc_count * 3 * 256 * sizeof(uint16_t)); + if (!original_ramps) { + perror("malloc"); + xcb_disconnect(connection); + crtc_count = 0; + return ~kCGErrorSuccess; + } + + /* Fill the gamma ramps we just allocated */ + for (i = 0; i < crtc_count; i++) { + /* Read current gamma ramps */ + gamma_cookie = xcb_randr_get_crtc_gamma(connection, crtcs[i]); + gamma_reply = xcb_randr_get_crtc_gamma_reply(connection, gamma_cookie, &error); + if (error) { + fprintf(stderr, "Failed to read gamma ramps.\n"); + xcb_disconnect(connection); + crtc_count = 0; + return ~kCGErrorSuccess; + } + + /* Copy over the gamma ramps to the memory area we have allocated */ #define __DEST(C) original_ramps + (C + 3 * i) * 256 #define __SRC(C) xcb_randr_get_crtc_gamma_##C(gamma_reply) - memcpy(__DEST(0), __SRC(red), 256 * sizeof(uint16_t)); - memcpy(__DEST(1), __SRC(green), 256 * sizeof(uint16_t)); - memcpy(__DEST(2), __SRC(blue), 256 * sizeof(uint16_t)); + memcpy(__DEST(0), __SRC(red), 256 * sizeof(uint16_t)); + memcpy(__DEST(1), __SRC(green), 256 * sizeof(uint16_t)); + memcpy(__DEST(2), __SRC(blue), 256 * sizeof(uint16_t)); #undef __SRC #undef __DEST - - /* Release resouces. */ - free(gamma_reply); + + /* Release resouces */ + free(gamma_reply); + } } - } - - /* Return CRTC ID:s. */ - for (i = 0; (i < max_size) && (i < crtc_count); i++) - *(displays_out + i) = (CGDirectDisplayID)i; - - /* Return the number of CRTC ID:s we returned. */ - *count_out = i; - return kCGErrorSuccess; + + /* Return CRTC ID:s */ + for (i = 0; i < max_size && i < crtc_count; i++) + displays_out[i] = (CGDirectDisplayID)i; + + /* Return the number of CRTC ID:s we returned */ + *count_out = i; + return kCGErrorSuccess; } /** - * Set the gamma ramps for a display. + * Set the gamma ramps for a display * - * @param display The ID of the display. - * @param gamma_size The number of stops in gamma ramps. - * @param red The gamma ramp for the red channel. - * @param green The gamma ramp for the green channel. - * @param blue The gamma ramp for the blue channel. - * @return `kCGErrorSuccess` on success, and error number of failure. + * @param display The ID of the display + * @param gamma_size The number of stops in gamma ramps + * @param red The gamma ramp for the red channel + * @param green The gamma ramp for the green channel + * @param blue The gamma ramp for the blue channel + * @return `kCGErrorSuccess` on success, and error number of failure */ -CGError CGSetDisplayTransferByTable(CGDirectDisplayID display, uint32_t gamma_size, const CGGammaValue* red, - const CGGammaValue* green, const CGGammaValue* blue) +CGError +CGSetDisplayTransferByTable(CGDirectDisplayID display, uint32_t gamma_size, const CGGammaValue *red, + const CGGammaValue *green, const CGGammaValue *blue) { - xcb_void_cookie_t gamma_cookie; - uint16_t r_int[256]; - uint16_t g_int[256]; - uint16_t b_int[256]; - long i; - int32_t v; - - /* This is a sloppy compatibility layer that assumes the gamma ramp size is 256. */ - if (gamma_size != 256) - { - fprintf(stderr, "Gamma size should be 256.\n"); - abort(); - } - - /* Translate the gamma ramps from float (CoreGraphics) to 16-bit unsigned integer (X RandR). */ - for (i = 0; i < 256; i++) - { - /* Red channel. */ - v = (int32_t)(red[i] * UINT16_MAX); - r_int[i] = (uint16_t)(v < 0 ? 0 : v > UINT16_MAX ? UINT16_MAX : v); - - /* Green channel. */ - v = (int32_t)(green[i] * UINT16_MAX); - g_int[i] = (uint16_t)(v < 0 ? 0 : v > UINT16_MAX ? UINT16_MAX : v); - - /* Blue channel. */ - v = (int32_t)(blue[i] * UINT16_MAX); - b_int[i] = (uint16_t)(v < 0 ? 0 : v > UINT16_MAX ? UINT16_MAX : v); - } - - /* Apply gamma ramps. */ - gamma_cookie = xcb_randr_set_crtc_gamma_checked(connection, crtcs[display], - (uint16_t)gamma_size, r_int, g_int, b_int); - /* Check for errors. */ - return xcb_request_check(connection, gamma_cookie) == NULL ? kCGErrorSuccess : ~kCGErrorSuccess; + xcb_void_cookie_t gamma_cookie; + uint16_t r_int[256], g_int[256], b_int[256]; + int32_t v; + long i; + + /* This is a sloppy compatibility layer that assumes the gamma ramp size is 256 */ + if (gamma_size != 256) { + fprintf(stderr, "Gamma size should be 256.\n"); + abort(); + } + + /* Translate the gamma ramps from float (CoreGraphics) to 16-bit unsigned integer (X RandR) */ + for (i = 0; i < 256; i++) { + /* Red channel */ + v = (int32_t)(red[i] * UINT16_MAX); + r_int[i] = (uint16_t)(v < 0 ? 0 : v > UINT16_MAX ? UINT16_MAX : v); + + /* Green channel */ + v = (int32_t)(green[i] * UINT16_MAX); + g_int[i] = (uint16_t)(v < 0 ? 0 : v > UINT16_MAX ? UINT16_MAX : v); + + /* Blue channel */ + v = (int32_t)(blue[i] * UINT16_MAX); + b_int[i] = (uint16_t)(v < 0 ? 0 : v > UINT16_MAX ? UINT16_MAX : v); + } + + /* Apply gamma ramps */ + gamma_cookie = xcb_randr_set_crtc_gamma_checked(connection, crtcs[display], (uint16_t)gamma_size, r_int, g_int, b_int); + /* Check for errors */ + return !xcb_request_check(connection, gamma_cookie) ? kCGErrorSuccess : ~kCGErrorSuccess; } /** - * Get the current gamma ramps for a display. + * Get the current gamma ramps for a display * - * @param display The ID of the display. - * @param gamma_size The number of stops you have allocated for the gamma ramps. - * @param red Table allocated for the gamma ramp for the red channel. - * @param green Table allocated for the gamma ramp for the green channel. - * @param blue Table allocated for the gamma ramp for the blue channel. - * @param gamma_size_out Output parameter for the actual number of stops in the gamma ramps. - * @return `kCGErrorSuccess` on success, and error number of failure. + * @param display The ID of the display + * @param gamma_size The number of stops you have allocated for the gamma ramps + * @param red Table allocated for the gamma ramp for the red channel + * @param green Table allocated for the gamma ramp for the green channel + * @param blue Table allocated for the gamma ramp for the blue channel + * @param gamma_size_out Output parameter for the actual number of stops in the gamma ramps + * @return `kCGErrorSuccess` on success, and error number of failure */ -CGError CGGetDisplayTransferByTable(CGDirectDisplayID display, uint32_t gamma_size, - CGGammaValue* restrict red, CGGammaValue* restrict green, - CGGammaValue* restrict blue, uint32_t* restrict gamma_size_out) +CGError +CGGetDisplayTransferByTable(CGDirectDisplayID display, uint32_t gamma_size, CGGammaValue *restrict red, + CGGammaValue *restrict green, CGGammaValue *restrict blue, uint32_t *restrict gamma_size_out) { - xcb_randr_get_crtc_gamma_cookie_t gamma_cookie; - xcb_randr_get_crtc_gamma_reply_t* restrict gamma_reply; - xcb_generic_error_t* error; - uint16_t* restrict r_int; - uint16_t* restrict g_int; - uint16_t* restrict b_int; - long i; - - /* This is a sloppy compatibility layer that assumes the gamma ramp size is 256. */ - if (gamma_size != 256) - { - fprintf(stderr, "Gamma size should be 256.\n"); - abort(); - } - - /* The gamma ramp size should be returned to the caller. */ - *gamma_size_out = 256; - - /* Read current gamma ramps. */ - gamma_cookie = xcb_randr_get_crtc_gamma(connection, crtcs[display]); - gamma_reply = xcb_randr_get_crtc_gamma_reply(connection, gamma_cookie, &error); - if (error) - { - fprintf(stderr, "Failed to write gamma ramps.\n"); - return ~kCGErrorSuccess; - } - - /* Get gamma ramp values. */ - r_int = xcb_randr_get_crtc_gamma_red(gamma_reply); - g_int = xcb_randr_get_crtc_gamma_green(gamma_reply); - b_int = xcb_randr_get_crtc_gamma_blue(gamma_reply); - - /* Translate gamma ramps to float format, - that is what CoreGraphics uses. */ - for (i = 0; i < 256; i++) - { - red[i] = (CGGammaValue)(r_int[i]) / UINT16_MAX; - green[i] = (CGGammaValue)(g_int[i]) / UINT16_MAX; - blue[i] = (CGGammaValue)(b_int[i]) / UINT16_MAX; - } - - free(gamma_reply); - return kCGErrorSuccess; + xcb_randr_get_crtc_gamma_cookie_t gamma_cookie; + xcb_randr_get_crtc_gamma_reply_t *restrict gamma_reply; + xcb_generic_error_t *error; + uint16_t *restrict r_int; + uint16_t *restrict g_int; + uint16_t *restrict b_int; + long i; + + /* This is a sloppy compatibility layer that assumes the gamma ramp size is 256 */ + if (gamma_size != 256) { + fprintf(stderr, "Gamma size should be 256\n"); + abort(); + } + + /* The gamma ramp size should be returned to the caller */ + *gamma_size_out = 256; + + /* Read current gamma ramps */ + gamma_cookie = xcb_randr_get_crtc_gamma(connection, crtcs[display]); + gamma_reply = xcb_randr_get_crtc_gamma_reply(connection, gamma_cookie, &error); + if (error) { + fprintf(stderr, "Failed to write gamma ramps\n"); + return ~kCGErrorSuccess; + } + + /* Get gamma ramp values */ + r_int = xcb_randr_get_crtc_gamma_red(gamma_reply); + g_int = xcb_randr_get_crtc_gamma_green(gamma_reply); + b_int = xcb_randr_get_crtc_gamma_blue(gamma_reply); + + /* Translate gamma ramps to float format, that is what CoreGraphics uses */ + for (i = 0; i < 256; i++) { + red[i] = (CGGammaValue)r_int[i] / UINT16_MAX; + green[i] = (CGGammaValue)g_int[i] / UINT16_MAX; + blue[i] = (CGGammaValue)b_int[i] / UINT16_MAX; + } + + free(gamma_reply); + return kCGErrorSuccess; } /** - * Restore each display's gamma ramps to the settings in ColorSync. + * Restore each display's gamma ramps to the settings in ColorSync */ -void CGDisplayRestoreColorSyncSettings(void) +void +CGDisplayRestoreColorSyncSettings(void) { - xcb_generic_error_t* error; - xcb_void_cookie_t gamma_cookie; - uint32_t i; - - /* Restore the gamma ramps on each monitor to - the ramps that we used when we started. */ - for (i = 0; i < crtc_count; i++) - { - /* We assume that our gamma ramps are of the size - 256 (this is a sloppy compatibility layer.) */ - gamma_cookie = xcb_randr_set_crtc_gamma_checked(connection, crtcs[i], 256, - original_ramps + (0 + 3 * i) * 256, - original_ramps + (1 + 3 * i) * 256, - original_ramps + (2 + 3 * i) * 256); - if ((error = xcb_request_check(connection, gamma_cookie))) - fprintf(stderr, "Quartz gamma reset emulation with RandR returned %i\n", error->error_code); - } + xcb_generic_error_t *error; + xcb_void_cookie_t gamma_cookie; + uint32_t i; + + /* Restore the gamma ramps on each monitor to + * the ramps that we used when we started */ + for (i = 0; i < crtc_count; i++) { + /* We assume that our gamma ramps are of the size + * 256 (this is a sloppy compatibility layer) */ + gamma_cookie = xcb_randr_set_crtc_gamma_checked(connection, crtcs[i], 256, + &original_ramps[(0 + 3 * i) * 256], + &original_ramps[(1 + 3 * i) * 256], + &original_ramps[(2 + 3 * i) * 256]); + if ((error = xcb_request_check(connection, gamma_cookie))) + fprintf(stderr, "Quartz gamma reset emulation with RandR returned %i\n", error->error_code); + } } /** - * Get the number of stops in the gamma ramps for a display. + * Get the number of stops in the gamma ramps for a display * - * @param display The ID of the display. - * @return The number of stops in the gamma ramps. + * @param display The ID of the display + * @return The number of stops in the gamma ramps */ -uint32_t CGDisplayGammaTableCapacity(CGDirectDisplayID display) +uint32_t +CGDisplayGammaTableCapacity(CGDirectDisplayID display) { - /* We assume that our gamma ramps are of the size - 256 (this is a sloppy compatibility layer.) */ - (void) display; - return 256; + /* We assume that our gamma ramps are of the size + * 256 (this is a sloppy compatibility layer) */ + (void) display; + return 256; } -#ifdef __GCC__ +#ifdef __GNUC__ # pragma GCC diagnostic pop #endif /** - * Release resources used by the backend. + * Release resources used by the backend */ void close_fake_quartz_cg(void) { - free(res_reply), res_reply = NULL; - if (connection != NULL) - xcb_disconnect(connection), connection = NULL; - free(original_ramps), original_ramps = NULL; + free(res_reply); + res_reply = NULL; + if (connection) { + xcb_disconnect(connection); + connection = NULL; + } + free(original_ramps); + original_ramps = NULL; } #endif - |