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Diffstat (limited to 'src/lib/libgamma-facade.c')
| -rw-r--r-- | src/lib/libgamma-facade.c | 1649 |
1 files changed, 0 insertions, 1649 deletions
diff --git a/src/lib/libgamma-facade.c b/src/lib/libgamma-facade.c deleted file mode 100644 index 65f0d38..0000000 --- a/src/lib/libgamma-facade.c +++ /dev/null @@ -1,1649 +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/>. - */ -#include "libgamma-facade.h" - -#include "libgamma-error.h" -#include "libgamma-method.h" -#include "gamma-helper.h" -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY -# include "gamma-dummy.h" -# ifndef HAVE_LIBGAMMA_METHODS -# define HAVE_LIBGAMMA_METHODS -# endif -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR -# include "gamma-x-randr.h" -# ifndef HAVE_LIBGAMMA_METHODS -# define HAVE_LIBGAMMA_METHODS -# endif -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE -# include "gamma-x-vidmode.h" -# ifndef HAVE_LIBGAMMA_METHODS -# define HAVE_LIBGAMMA_METHODS -# endif -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM -# include "gamma-linux-drm.h" -# ifndef HAVE_LIBGAMMA_METHODS -# define HAVE_LIBGAMMA_METHODS -# endif -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI -# include "gamma-w32-gdi.h" -# ifndef HAVE_LIBGAMMA_METHODS -# define HAVE_LIBGAMMA_METHODS -# endif -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS -# include "gamma-quartz-cg.h" -# ifndef HAVE_LIBGAMMA_METHODS -# define HAVE_LIBGAMMA_METHODS -# endif -#endif - -#include <unistd.h> -#include <stddef.h> -#include <stdint.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> - - -#ifndef HAVE_LIBGAMMA_METHODS -# define HAVE_NO_LIBGAMMA_METHODS -#endif - - -#ifdef HAVE_NO_LIBGAMMA_METHODS -# pragma GCC diagnostic push -# pragma GCC diagnostic ignored "-Wsuggest-attribute=const" -#endif - - - -#ifdef HAVE_LIBGAMMA_METHODS -# ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM -/** - * Test whether a file descriptor refers to a VT. - * - * @param fd The file descriptor. - * @return Whether the file descriptor refers to a VT. - */ -static int libgamma_is_vt_proper(int fd) -{ - char buf[32]; - char digit0; - - if (ttyname_r(fd, buf, sizeof(buf) / sizeof(char))) - return 0; - - if (strstr(buf, "/dev/tty") != buf) - return 0; - - digit0 = buf[strlen("/dev/tty")]; - return ('1' <= digit0) && (digit0 <= '9'); -} -# endif - - -/** - * Test the availability of an adjustment method. - * - * @param method The adjustment method. - * @param operation Allowed values: - * 0: Pass if the environment suggests it will work but is not fake. - * 1: Pass if the environment suggests it will work. - * 2: Pass if real and not fake. - * 3: Pass if real. - * 4: Always pass. - * Other values invoke undefined behaviour. - * @return Whether the test passed. - */ -static int libgamma_list_method_test(int method, int operation) -{ - libgamma_method_capabilities_t caps; - libgamma_method_capabilities(&caps, method); - - switch (operation) - { - case 0: - /* Methods that the environment suggests will work, excluding fake. */ - if (caps.fake) - return 0; - /* Fall through. */ - - case 1: - /* Methods that the environment suggests will work, including fake. */ - if (caps.real == 0) - return 0; -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - if (method == LIBGAMMA_METHOD_LINUX_DRM) - return libgamma_is_vt_proper(STDIN_FILENO) || - libgamma_is_vt_proper(STDOUT_FILENO) || - libgamma_is_vt_proper(STDERR_FILENO); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - if (method == LIBGAMMA_METHOD_DUMMY) - return 0; -#endif - return caps.default_site_known; - - case 2: - /* All real non-fake methods. */ - return caps.real && (caps.fake == 0); - - case 3: - /* All real methods. */ - return caps.real; - - default: - /* All methods. */ - return 1; - } -} -#endif - - -/** - * List available adjustment methods by their order of preference based on the environment. - * - * @param methods Output array of methods, should be able to hold `LIBGAMMA_METHOD_COUNT` elements - * @param buf_size The number of elements that fits in `methods`, it should be `LIBGAMMA_METHOD_COUNT`, - * This is used to avoid writing outside the output buffer if this library adds new - * adjustment methods without the users of the library recompiling. - * @param operation Allowed values: - * 0: Methods that the environment suggests will work, excluding fake. - * 1: Methods that the environment suggests will work, including fake. - * 2: All real non-fake methods. - * 3: All real methods. - * 4: All methods. - * Other values invoke undefined behaviour. - * @return The number of element that have been stored in `methods`, or should - * have been stored if the buffer was large enought. - */ -size_t libgamma_list_methods(int* restrict methods, size_t buf_size, int operation) -{ -#ifdef HAVE_NO_LIBGAMMA_METHODS - (void) methods; - (void) operation; - return 0; -#else - size_t n = 0; - -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - if (libgamma_list_method_test(LIBGAMMA_METHOD_X_RANDR, operation) && (n++ < buf_size)) - methods[n - 1] = LIBGAMMA_METHOD_X_RANDR; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - if (libgamma_list_method_test(LIBGAMMA_METHOD_X_VIDMODE, operation) && (n++ < buf_size)) - methods[n - 1] = LIBGAMMA_METHOD_X_VIDMODE; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - if (libgamma_list_method_test(LIBGAMMA_METHOD_LINUX_DRM, operation) && (n++ < buf_size)) - methods[n - 1] = LIBGAMMA_METHOD_LINUX_DRM; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - if (libgamma_list_method_test(LIBGAMMA_METHOD_W32_GDI, operation) && (n++ < buf_size)) - methods[n - 1] = LIBGAMMA_METHOD_W32_GDI; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - if (libgamma_list_method_test(LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS, operation) && (n++ < buf_size)) - methods[n - 1] = LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - if (libgamma_list_method_test(LIBGAMMA_METHOD_DUMMY, operation) && (n++ < buf_size)) - methods[n - 1] = LIBGAMMA_METHOD_DUMMY; -#endif - - return n; -#endif -} - - -/** - * Check whether an adjustment method is available, non-existing (invalid) methods will be - * identified as not available under the rationale that the library may be out of date. - * - * @param method The adjustment method. - * @return Whether the adjustment method is available. - */ -int libgamma_is_method_available(int method) -{ -#ifdef HAVE_NO_LIBGAMMA_METHODS - (void) methods; - return 0; -#else - switch (method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: -#endif - return 1; - - default: - return 0; - } -#endif -} - - -/** - * Return the capabilities of an adjustment method. - * - * @param this The data structure to fill with the method's capabilities. - * @param method The adjustment method (display server and protocol.) - */ -void libgamma_method_capabilities(libgamma_method_capabilities_t* restrict this, int method) -{ - memset(this, 0, sizeof(libgamma_method_capabilities_t)); - - switch (method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - libgamma_dummy_method_capabilities(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - libgamma_x_randr_method_capabilities(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - libgamma_x_vidmode_method_capabilities(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: - libgamma_linux_drm_method_capabilities(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: - libgamma_w32_gdi_method_capabilities(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - libgamma_quartz_cg_method_capabilities(this); - break; -#endif - - default: - /* Method does not exists/excluded at compile-time. - We will assume that this is not done... */ - break; - } -} - - -/** - * Return the capabilities of an adjustment method. - * - * @param method The adjustment method (display server and protocol.) - * @return The default site, `NULL` if it cannot be determined or - * if multiple sites are not supported by the adjustment - * method. This value should not be free:d. - */ -char* libgamma_method_default_site(int method) -{ - const char* restrict var = libgamma_method_default_site_variable(method); - char* restrict env; - - if (var == NULL) - return NULL; - - env = getenv(var); - if ((env == NULL) || (*env == '\0')) - return NULL; - - return env; -} - - -/** - * Return the capabilities of an adjustment method. - * - * @param method The adjustment method (display server and protocol.) - * @return The environ variables that is used to determine the - * default site. `NULL` if there is none, that is, if - * the method does not support multiple sites. - * This value should not be free:d. - */ -const char* libgamma_method_default_site_variable(int method) -{ - switch (method) - { -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - return "DISPLAY"; -#endif - -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - return "DISPLAY"; -#endif - - default: - return NULL; - } -} - - - -/** - * Initialise an allocated site state. - * - * @param this The site state to initialise. - * @param method The adjustment method (display server and protocol.) - * @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_site_initialise(libgamma_site_state_t* restrict this, - int method, char* restrict site) -{ - this->method = method; - this->site = site; - - switch (method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_site_initialise(this, site); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - return libgamma_x_randr_site_initialise(this, site); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - return libgamma_x_vidmode_site_initialise(this, site); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: - return libgamma_linux_drm_site_initialise(this, site); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: - return libgamma_w32_gdi_site_initialise(this, site); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - return libgamma_quartz_cg_site_initialise(this, site); -#endif - - default: - return LIBGAMMA_NO_SUCH_ADJUSTMENT_METHOD; - } -} - - -/** - * Release all resources held by a site state. - * - * @param this The site state. - */ -void libgamma_site_destroy(libgamma_site_state_t* restrict this) -{ - switch (this->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - libgamma_dummy_site_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - libgamma_x_randr_site_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - libgamma_x_vidmode_site_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: - libgamma_linux_drm_site_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: - libgamma_w32_gdi_site_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - libgamma_quartz_cg_site_destroy(this); - break; -#endif - - default: - /* Method does not exists/excluded at compile-time. - We will assume that this is not done... */ - break; - } - free(this->site); -} - - -/** - * Release all resources held by a site state - * and free the site state pointer. - * - * @param this The site state. - */ -void libgamma_site_free(libgamma_site_state_t* restrict this) -{ - libgamma_site_destroy(this); - free(this); -} - - -/** - * 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_site_restore(libgamma_site_state_t* restrict this) -{ - switch (this->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_site_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - return libgamma_x_randr_site_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - return libgamma_x_vidmode_site_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: - return libgamma_linux_drm_site_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: - return libgamma_w32_gdi_site_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - return libgamma_quartz_cg_site_restore(this); -#endif - - default: - return LIBGAMMA_NO_SUCH_ADJUSTMENT_METHOD; - } -} - - - -/** - * 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_partition_initialise(libgamma_partition_state_t* restrict this, - libgamma_site_state_t* restrict site, size_t partition) -{ - this->site = site; - this->partition = partition; - - switch (site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_partition_initialise(this, site, partition); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - return libgamma_x_randr_partition_initialise(this, site, partition); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - return libgamma_x_vidmode_partition_initialise(this, site, partition); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: - return libgamma_linux_drm_partition_initialise(this, site, partition); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: - return libgamma_w32_gdi_partition_initialise(this, site, partition); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - return libgamma_quartz_cg_partition_initialise(this, site, partition); -#endif - - default: - return LIBGAMMA_NO_SUCH_ADJUSTMENT_METHOD; - } -} - - -/** - * Release all resources held by a partition state. - * - * @param this The partition state. - */ -void libgamma_partition_destroy(libgamma_partition_state_t* restrict this) -{ - switch (this->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - libgamma_dummy_partition_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - libgamma_x_randr_partition_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - libgamma_x_vidmode_partition_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: - libgamma_linux_drm_partition_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: - libgamma_w32_gdi_partition_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - libgamma_quartz_cg_partition_destroy(this); - break; -#endif - - default: - /* Method does not exists/excluded at compile-time. - We will assume that this is not done... */ - break; - } -} - - -/** - * Release all resources held by a partition state - * and free the partition state pointer. - * - * @param this The partition state. - */ -void libgamma_partition_free(libgamma_partition_state_t* restrict this) -{ - libgamma_partition_destroy(this); - free(this); -} - - -/** - * 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_partition_restore(libgamma_partition_state_t* restrict this) -{ - switch (this->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_partition_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - return libgamma_x_randr_partition_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - return libgamma_x_vidmode_partition_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: - return libgamma_linux_drm_partition_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: - return libgamma_w32_gdi_partition_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - return libgamma_quartz_cg_partition_restore(this); -#endif - - default: - return LIBGAMMA_NO_SUCH_ADJUSTMENT_METHOD; - } -} - - - -/** - * 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_crtc_initialise(libgamma_crtc_state_t* restrict this, - libgamma_partition_state_t* restrict partition, size_t crtc) -{ - this->partition = partition; - this->crtc = crtc; - - switch (partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_crtc_initialise(this, partition, crtc); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - return libgamma_x_randr_crtc_initialise(this, partition, crtc); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - return libgamma_x_vidmode_crtc_initialise(this, partition, crtc); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: - return libgamma_linux_drm_crtc_initialise(this, partition, crtc); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: - return libgamma_w32_gdi_crtc_initialise(this, partition, crtc); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - return libgamma_quartz_cg_crtc_initialise(this, partition, crtc); -#endif - - default: - return LIBGAMMA_NO_SUCH_ADJUSTMENT_METHOD; - } -} - - -/** - * Release all resources held by a CRTC state. - * - * @param this The CRTC state. - */ -void libgamma_crtc_destroy(libgamma_crtc_state_t* restrict this) -{ - switch (this->partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - libgamma_dummy_crtc_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - libgamma_x_randr_crtc_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - libgamma_x_vidmode_crtc_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: - libgamma_linux_drm_crtc_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: - libgamma_w32_gdi_crtc_destroy(this); - break; -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - libgamma_quartz_cg_crtc_destroy(this); - break; -#endif - - default: - /* Method does not exists/excluded at compile-time. - We will assume that this is not done... */ - break; - } -} - - -/** - * Release all resources held by a CRTC state - * and free the CRTC state pointer. - * - * @param this The CRTC state. - */ -void libgamma_crtc_free(libgamma_crtc_state_t* restrict this) -{ - libgamma_crtc_destroy(this); - free(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_crtc_restore(libgamma_crtc_state_t* restrict this) -{ - switch (this->partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_crtc_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - return libgamma_x_randr_crtc_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - return libgamma_x_vidmode_crtc_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: - return libgamma_linux_drm_crtc_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: - return libgamma_w32_gdi_crtc_restore(this); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - return libgamma_quartz_cg_crtc_restore(this); -#endif - - default: - return LIBGAMMA_NO_SUCH_ADJUSTMENT_METHOD; - } -} - - - -/** - * 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_get_crtc_information(libgamma_crtc_information_t* restrict this, - libgamma_crtc_state_t* restrict crtc, int32_t fields) -{ -#ifdef HAVE_NO_LIBGAMMA_METHODS - (void) fields; -#endif - - this->edid = NULL; - this->connector_name = NULL; - - switch (crtc->partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_get_crtc_information(this, crtc, fields); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - return libgamma_x_randr_get_crtc_information(this, crtc, fields); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - return libgamma_x_vidmode_get_crtc_information(this, crtc, fields); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: - return libgamma_linux_drm_get_crtc_information(this, crtc, fields); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: - return libgamma_w32_gdi_get_crtc_information(this, crtc, fields); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - return libgamma_quartz_cg_get_crtc_information(this, crtc, fields); -#endif - - default: - return LIBGAMMA_NO_SUCH_ADJUSTMENT_METHOD; - } -} - - -/** - * Release all resources in an information data structure for a CRTC. - * - * @param this The CRTC information. - */ -void libgamma_crtc_information_destroy(libgamma_crtc_information_t* restrict this) -{ - free(this->edid); - free(this->connector_name); -} - - -/** - * Release all resources in an information data structure for a CRTC - * and free the data structure pointer. - * - * @param this The CRTC information. - */ -void libgamma_crtc_information_free(libgamma_crtc_information_t* restrict this) -{ - libgamma_crtc_information_destroy(this); - free(this); -} - - -/** - * Convert a raw representation of an EDID to a lowercase hexadecimal representation. - * - * @param edid The EDID in raw representation. - * @param length The length of `edid`. - * @retrun The EDID in lowercase hexadecimal representation, - * `NULL` on allocation error, `errno` will be set accordingly. - */ -char* libgamma_behex_edid_lowercase(const unsigned char* restrict edid, size_t length) -{ - char* restrict out = malloc((length * 2 + 1) * sizeof(char)); - size_t i; - - if (out == NULL) - return NULL; - - for (i = 0; i < length; i++) - { - out[i * 2 + 0] = "0123456789abcdef"[(edid[i] >> 4) & 15]; - out[i * 2 + 1] = "0123456789abcdef"[(edid[i] >> 0) & 15]; - } - out[length * 2] = '\0'; - - return out; -} - - -/** - * Convert a raw representation of an EDID to an uppercase hexadecimal representation. - * - * @param edid The EDID in raw representation. - * @param length The length of `edid`. - * @retrun The EDID in uppercase hexadecimal representation, - * NULL` on allocation error, `errno` will be set accordingly. - */ -char* libgamma_behex_edid_uppercase(const unsigned char* restrict edid, size_t length) -{ - char* restrict out = malloc((length * 2 + 1) * sizeof(char)); - size_t i; - - if (out == NULL) - return NULL; - - for (i = 0; i < length; i++) - { - out[i * 2 + 0] = "0123456789ABCDEF"[(edid[i] >> 4) & 15]; - out[i * 2 + 1] = "0123456789ABCDEF"[(edid[i] >> 0) & 15]; - } - out[length * 2] = '\0'; - - return out; -} - - -/** - * Convert an hexadecimal representation of an EDID to a raw representation. - * - * @param edid The EDID in hexadecimal representation. - * @retrun The EDID in raw representation, it will be half the length - * of `edid` (the input value). `NULL` on allocation error or - * if the EDID is malformated, `errno` will be set accordingly. - */ -unsigned char* libgamma_unhex_edid(const char* restrict edid) -{ -#define not_range(lower, V, upper) ((V < lower) || (upper < V)) -#define is_not_hex(V) (not_range('0', V, '9') && not_range('a', V, 'f') && not_range('A', V, 'F')) - - unsigned char* restrict out = NULL; - size_t n = strlen(edid); - size_t i; - - if ((n & 1)) - return errno = EINVAL, NULL; - - out = malloc(n / 2 * sizeof(unsigned char)); - if (out == NULL) - return NULL; - - for (i = 0; i < n; i++) - { - char a = edid[i * 2 + 0]; - char b = edid[i * 2 + 1]; - - if (is_not_hex(a) || is_not_hex(b)) - { - free(out); - return errno = EINVAL, NULL; - } - - a = (char)((a & 15) + (a > '9' ? 9 : 0)); - b = (char)((b & 15) + (b > '9' ? 9 : 0)); - - out[i] = (unsigned char)((a << 4) | b); - } - - return out; - -#undef is_hex -#undef not_range -} - - - -/** - * Get current the gamma ramps for a CRTC, 16-bit gamma-depth 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_crtc_get_gamma_ramps(libgamma_crtc_state_t* restrict this, - libgamma_gamma_ramps_t* restrict ramps) -{ -#ifdef HAVE_NO_LIBGAMMA_METHODS - (void) ramps; -#endif - - switch (this->partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_crtc_get_gamma_ramps(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - return libgamma_x_randr_crtc_get_gamma_ramps(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - return libgamma_x_vidmode_crtc_get_gamma_ramps(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: - return libgamma_linux_drm_crtc_get_gamma_ramps(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: - return libgamma_w32_gdi_crtc_get_gamma_ramps(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - { - libgamma_gamma_ramps_any_t ramps_; - ramps_.bits16 = *ramps; - return libgamma_translated_ramp_get(this, &ramps_, 16, -1, - libgamma_crtc_get_gamma_ramps); - } -#endif - - default: - return LIBGAMMA_NO_SUCH_ADJUSTMENT_METHOD; - } -} - - -/** - * Set the gamma ramps for a CRTC, 16-bit gamma-depth 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_crtc_set_gamma_ramps(libgamma_crtc_state_t* restrict this, - libgamma_gamma_ramps_t ramps) -{ -#ifdef HAVE_NO_LIBGAMMA_METHODS - (void) ramps; -#endif - - switch (this->partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_crtc_set_gamma_ramps(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_RANDR - case LIBGAMMA_METHOD_X_RANDR: - return libgamma_x_randr_crtc_set_gamma_ramps(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_X_VIDMODE - case LIBGAMMA_METHOD_X_VIDMODE: - return libgamma_x_vidmode_crtc_set_gamma_ramps(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_LINUX_DRM - case LIBGAMMA_METHOD_LINUX_DRM: - return libgamma_linux_drm_crtc_set_gamma_ramps(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_W32_GDI - case LIBGAMMA_METHOD_W32_GDI: - return libgamma_w32_gdi_crtc_set_gamma_ramps(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - { - libgamma_gamma_ramps_any_t ramps_; - ramps_.bits16 = ramps; - return libgamma_translated_ramp_set(this, ramps_, 16, -1, - libgamma_crtc_set_gamma_ramps); - } -#endif - - default: - return LIBGAMMA_NO_SUCH_ADJUSTMENT_METHOD; - } -} - - - -/** - * Get current the gamma ramps for a CRTC, 32-bit gamma-depth 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_crtc_get_gamma_ramps32(libgamma_crtc_state_t* restrict this, - libgamma_gamma_ramps32_t* restrict ramps) -{ - libgamma_gamma_ramps_any_t ramps_; - switch (this->partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_crtc_get_gamma_ramps32(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - ramps_.bits32 = *ramps; - return libgamma_translated_ramp_get(this, &ramps_, 32, -1, - libgamma_crtc_get_gamma_ramps); -#endif - - default: - ramps_.bits32 = *ramps; - return libgamma_translated_ramp_get(this, &ramps_, 32, 16, - libgamma_crtc_get_gamma_ramps); - } -} - - -/** - * Set the gamma ramps for a CRTC, 32-bit gamma-depth 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_crtc_set_gamma_ramps32(libgamma_crtc_state_t* restrict this, - libgamma_gamma_ramps32_t ramps) -{ - libgamma_gamma_ramps_any_t ramps_; - switch (this->partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_crtc_set_gamma_ramps32(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - ramps_.bits32 = ramps; - return libgamma_translated_ramp_set(this, ramps_, 32, -1, - libgamma_crtc_set_gamma_ramps); -#endif - - default: - ramps_.bits32 = ramps; - return libgamma_translated_ramp_set(this, ramps_, 32, 16, - libgamma_crtc_set_gamma_ramps); - } -} - - - -/** - * Get current the gamma ramps for a CRTC, 64-bit gamma-depth 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_crtc_get_gamma_ramps64(libgamma_crtc_state_t* restrict this, - libgamma_gamma_ramps64_t* restrict ramps) -{ - libgamma_gamma_ramps_any_t ramps_; - switch (this->partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_crtc_get_gamma_ramps64(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - ramps_.bits64 = *ramps; - return libgamma_translated_ramp_get(this, &ramps_, 64, -1, - libgamma_crtc_get_gamma_ramps); -#endif - - default: - ramps_.bits64 = *ramps; - return libgamma_translated_ramp_get(this, &ramps_, 64, 16, - libgamma_crtc_get_gamma_ramps); - } -} - - -/** - * Set the gamma ramps for a CRTC, 64-bit gamma-depth 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_crtc_set_gamma_ramps64(libgamma_crtc_state_t* restrict this, - libgamma_gamma_ramps64_t ramps) -{ - libgamma_gamma_ramps_any_t ramps_; - switch (this->partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_crtc_set_gamma_ramps64(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - ramps_.bits64 = ramps; - return libgamma_translated_ramp_set(this, ramps_, 64, -1, - libgamma_crtc_set_gamma_ramps); -#endif - - default: - ramps_.bits64 = ramps; - return libgamma_translated_ramp_set(this, ramps_, 64, 16, - libgamma_crtc_set_gamma_ramps); - } -} - - - -/** - * 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_crtc_get_gamma_rampsf(libgamma_crtc_state_t* restrict this, - libgamma_gamma_rampsf_t* restrict ramps) -{ - libgamma_gamma_ramps_any_t ramps_; - switch (this->partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_crtc_get_gamma_rampsf(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - return libgamma_quartz_cg_crtc_get_gamma_rampsf(this, ramps); -#endif - - default: - ramps_.float_single = *ramps; - return libgamma_translated_ramp_get(this, &ramps_, -1, 16, - libgamma_crtc_get_gamma_ramps); - } -} - - -/** - * 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_crtc_set_gamma_rampsf(libgamma_crtc_state_t* restrict this, - libgamma_gamma_rampsf_t ramps) -{ - switch (this->partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_crtc_set_gamma_rampsf(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - return libgamma_quartz_cg_crtc_set_gamma_rampsf(this, ramps); -#endif - - default: - { - libgamma_gamma_ramps_any_t ramps_; - ramps_.float_single = ramps; - return libgamma_translated_ramp_set(this, ramps_, -1, 16, - libgamma_crtc_set_gamma_ramps); - } - } -} - - - -/** - * Get current the gamma ramps for a CRTC, `double` 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_crtc_get_gamma_rampsd(libgamma_crtc_state_t* restrict this, - libgamma_gamma_rampsd_t* restrict ramps) -{ - libgamma_gamma_ramps_any_t ramps_; - switch (this->partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_crtc_get_gamma_rampsd(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - ramps_.float_double = *ramps; - return libgamma_translated_ramp_get(this, &ramps_, -2, -1, - libgamma_crtc_get_gamma_ramps); -#endif - - default: - ramps_.float_double = *ramps; - return libgamma_translated_ramp_get(this, &ramps_, -2, 16, - libgamma_crtc_get_gamma_ramps); - } -} - - -/** - * Set the gamma ramps for a CRTC, `double` 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_crtc_set_gamma_rampsd(libgamma_crtc_state_t* restrict this, - libgamma_gamma_rampsd_t ramps) -{ - libgamma_gamma_ramps_any_t ramps_; - switch (this->partition->site->method) - { -#ifdef HAVE_LIBGAMMA_METHOD_DUMMY - case LIBGAMMA_METHOD_DUMMY: - return libgamma_dummy_crtc_set_gamma_rampsd(this, ramps); -#endif -#ifdef HAVE_LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS - case LIBGAMMA_METHOD_QUARTZ_CORE_GRAPHICS: - ramps_.float_double = ramps; - return libgamma_translated_ramp_set(this, ramps_, -2, -1, - libgamma_crtc_set_gamma_ramps); -#endif - - default: - ramps_.float_double = ramps; - return libgamma_translated_ramp_set(this, ramps_, -2, 16, - libgamma_crtc_set_gamma_ramps); - } -} - - - -/** - * Set the gamma ramps for a CRTC, 16-bit gamma-depth function version. - * - * Note that this will probably involve the library allocating temporary data. - * - * @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_crtc_set_gamma_ramps_f(libgamma_crtc_state_t* restrict this, - libgamma_gamma_ramps_fun* red_function, - libgamma_gamma_ramps_fun* green_function, - libgamma_gamma_ramps_fun* blue_function) -{ - libgamma_crtc_information_t info; - libgamma_gamma_ramps_t ramps; - size_t i, n; - int e; - - if (libgamma_get_crtc_information(&info, this, LIBGAMMA_CRTC_INFO_GAMMA_SIZE)) - { - e = info.gamma_size_error; - if (e < 0) - return e; - return errno = e, LIBGAMMA_ERRNO_SET; - } - - n = ramps. red_size = info. red_gamma_size; - n += ramps.green_size = info.green_gamma_size; - n += ramps. blue_size = info. blue_gamma_size; - - ramps. red = malloc(n * sizeof(uint16_t)); - ramps.green = ramps. red + ramps. red_size; - ramps. blue = ramps.green + ramps.green_size; - if (ramps.red == NULL) - return LIBGAMMA_ERRNO_SET; - - for (i = 0, n = ramps.red_size; i < n; i++) - ramps.red[i] = red_function((float)i / (float)(n - 1)); - - for (i = 0, n = ramps.green_size; i < n; i++) - ramps.green[i] = green_function((float)i / (float)(n - 1)); - - for (i = 0, n = ramps.blue_size; i < n; i++) - ramps.blue[i] = blue_function((float)i / (float)(n - 1)); - - e = libgamma_crtc_set_gamma_ramps(this, ramps); - free(ramps.red); - return e; -} - - -/** - * Set the gamma ramps for a CRTC, 32-bit gamma-depth function version. - * - * Note that this will probably involve the library allocating temporary data. - * - * @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_crtc_set_gamma_ramps32_f(libgamma_crtc_state_t* restrict this, - libgamma_gamma_ramps32_fun* red_function, - libgamma_gamma_ramps32_fun* green_function, - libgamma_gamma_ramps32_fun* blue_function) -{ - libgamma_crtc_information_t info; - libgamma_gamma_ramps32_t ramps; - size_t i, n; - int e; - - if (libgamma_get_crtc_information(&info, this, LIBGAMMA_CRTC_INFO_GAMMA_SIZE)) - { - e = info.gamma_size_error; - if (e < 0) - return e; - return errno = e, LIBGAMMA_ERRNO_SET; - } - - n = ramps. red_size = info. red_gamma_size; - n += ramps.green_size = info.green_gamma_size; - n += ramps. blue_size = info. blue_gamma_size; - - ramps. red = malloc(n * sizeof(uint32_t)); - ramps.green = ramps. red + ramps. red_size; - ramps. blue = ramps.green + ramps.green_size; - if (ramps.red == NULL) - return LIBGAMMA_ERRNO_SET; - - for (i = 0, n = ramps.red_size; i < n; i++) - ramps.red[i] = red_function((float)i / (float)(n - 1)); - - for (i = 0, n = ramps.green_size; i < n; i++) - ramps.green[i] = green_function((float)i / (float)(n - 1)); - - for (i = 0, n = ramps.blue_size; i < n; i++) - ramps.blue[i] = blue_function((float)i / (float)(n - 1)); - - e = libgamma_crtc_set_gamma_ramps32(this, ramps); - free(ramps.red); - return e; -} - - -/** - * Set the gamma ramps for a CRTC, 64-bit gamma-depth function version. - * - * Note that this will probably involve the library allocating temporary data. - * - * @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_crtc_set_gamma_ramps64_f(libgamma_crtc_state_t* restrict this, - libgamma_gamma_ramps64_fun* red_function, - libgamma_gamma_ramps64_fun* green_function, - libgamma_gamma_ramps64_fun* blue_function) -{ - libgamma_crtc_information_t info; - libgamma_gamma_ramps64_t ramps; - size_t i, n; - int e; - - if (libgamma_get_crtc_information(&info, this, LIBGAMMA_CRTC_INFO_GAMMA_SIZE)) - { - e = info.gamma_size_error; - if (e < 0) - return e; - return errno = e, LIBGAMMA_ERRNO_SET; - } - - n = ramps. red_size = info. red_gamma_size; - n += ramps.green_size = info.green_gamma_size; - n += ramps. blue_size = info. blue_gamma_size; - - ramps. red = malloc(n * sizeof(uint64_t)); - ramps.green = ramps. red + ramps. red_size; - ramps. blue = ramps.green + ramps.green_size; - if (ramps.red == NULL) - return LIBGAMMA_ERRNO_SET; - - for (i = 0, n = ramps.red_size; i < n; i++) - ramps.red[i] = red_function((float)i / (float)(n - 1)); - - for (i = 0, n = ramps.green_size; i < n; i++) - ramps.green[i] = green_function((float)i / (float)(n - 1)); - - for (i = 0, n = ramps.blue_size; i < n; i++) - ramps.blue[i] = blue_function((float)i / (float)(n - 1)); - - e = libgamma_crtc_set_gamma_ramps64(this, ramps); - free(ramps.red); - return e; -} - - -/** - * Set the gamma ramps for a CRTC, `float` function version. - * - * Note that this will probably involve the library allocating temporary data. - * - * @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_crtc_set_gamma_rampsf_f(libgamma_crtc_state_t* restrict this, - libgamma_gamma_rampsf_fun* red_function, - libgamma_gamma_rampsf_fun* green_function, - libgamma_gamma_rampsf_fun* blue_function) -{ - libgamma_crtc_information_t info; - libgamma_gamma_rampsf_t ramps; - size_t i, n; - int e; - - if (libgamma_get_crtc_information(&info, this, LIBGAMMA_CRTC_INFO_GAMMA_SIZE)) - { - e = info.gamma_size_error; - if (e < 0) - return e; - return errno = e, LIBGAMMA_ERRNO_SET; - } - - n = ramps. red_size = info. red_gamma_size; - n += ramps.green_size = info.green_gamma_size; - n += ramps. blue_size = info. blue_gamma_size; - - ramps. red = malloc(n * sizeof(float)); - ramps.green = ramps. red + ramps. red_size; - ramps. blue = ramps.green + ramps.green_size; - if (ramps.red == NULL) - return LIBGAMMA_ERRNO_SET; - - for (i = 0, n = ramps.red_size; i < n; i++) - ramps.red[i] = red_function((float)i / (float)(n - 1)); - - for (i = 0, n = ramps.green_size; i < n; i++) - ramps.green[i] = green_function((float)i / (float)(n - 1)); - - for (i = 0, n = ramps.blue_size; i < n; i++) - ramps.blue[i] = blue_function((float)i / (float)(n - 1)); - - e = libgamma_crtc_set_gamma_rampsf(this, ramps); - free(ramps.red); - return e; -} - - -/** - * Set the gamma ramps for a CRTC, `double` function version. - * - * Note that this will probably involve the library allocating temporary data. - * - * @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_crtc_set_gamma_rampsd_f(libgamma_crtc_state_t* restrict this, - libgamma_gamma_rampsd_fun* red_function, - libgamma_gamma_rampsd_fun* green_function, - libgamma_gamma_rampsd_fun* blue_function) -{ - libgamma_crtc_information_t info; - libgamma_gamma_rampsd_t ramps; - size_t i, n; - int e; - - if (libgamma_get_crtc_information(&info, this, LIBGAMMA_CRTC_INFO_GAMMA_SIZE)) - { - e = info.gamma_size_error; - if (e < 0) - return e; - return errno = e, LIBGAMMA_ERRNO_SET; - } - - n = ramps. red_size = info. red_gamma_size; - n += ramps.green_size = info.green_gamma_size; - n += ramps. blue_size = info. blue_gamma_size; - - ramps. red = malloc(n * sizeof(double)); - ramps.green = ramps. red + ramps. red_size; - ramps. blue = ramps.green + ramps.green_size; - if (ramps.red == NULL) - return LIBGAMMA_ERRNO_SET; - - for (i = 0, n = ramps.red_size; i < n; i++) - ramps.red[i] = red_function((double)i / (double)(n - 1)); - - for (i = 0, n = ramps.green_size; i < n; i++) - ramps.green[i] = green_function((double)i / (double)(n - 1)); - - for (i = 0, n = ramps.blue_size; i < n; i++) - ramps.blue[i] = blue_function((double)i / (double)(n - 1)); - - e = libgamma_crtc_set_gamma_rampsd(this, ramps); - free(ramps.red); - return e; -} - - - -#ifdef HAVE_NO_LIBGAMMA_METHODS -# pragma GCC diagnostic pop -#endif - |