aboutsummaryrefslogtreecommitdiffstats
path: root/src/lib/gamma-dummy.c
diff options
context:
space:
mode:
authorMattias Andrée <maandree@operamail.com>2014-08-28 16:36:49 +0200
committerMattias Andrée <maandree@operamail.com>2014-08-28 16:36:49 +0200
commit6c418015505f29f7c59f86b472b7535f5d87fc84 (patch)
tree1daa0c3114fe41c1f4d865f639ffa5034ebb8194 /src/lib/gamma-dummy.c
parentwhitespace (diff)
downloadlibgamma-6c418015505f29f7c59f86b472b7535f5d87fc84.tar.gz
libgamma-6c418015505f29f7c59f86b472b7535f5d87fc84.tar.bz2
libgamma-6c418015505f29f7c59f86b472b7535f5d87fc84.tar.xz
dummy method: set and get gamma ramps
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to 'src/lib/gamma-dummy.c')
-rw-r--r--src/lib/gamma-dummy.c894
1 files changed, 0 insertions, 894 deletions
diff --git a/src/lib/gamma-dummy.c b/src/lib/gamma-dummy.c
deleted file mode 100644
index 3b047a3..0000000
--- a/src/lib/gamma-dummy.c
+++ /dev/null
@@ -1,894 +0,0 @@
-/**
- * libgamma -- Display server abstraction layer for gamma ramp adjustments
- * Copyright (C) 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_DUMMY
-# error Compiling gamma-dummy.c without HAVE_LIBGAMMA_METHOD_DUMMY
-#endif
-
-#include "gamma-dummy.h"
-
-#include "libgamma-error.h"
-#include "libgamma-method.h"
-#include "edid.h"
-
-#include <errno.h>
-#include <stdint.h>
-#include <stdlib.h>
-#include <string.h>
-
-
-
-/**
- * Configuration set for the dummy adjustment method.
- */
-typedef struct libgamma_dummy_configurations
-{
- /**
- * The method's capabilities.
- *
- * Some fields are ignored:
- * - real
- * - fake
- */
- libgamma_method_capabilities_t capabilities;
-
- /**
- * Template for CRTC:s information.
- *
- * Some fields are ignored:
- * - width_mm_edid
- * - width_mm_edid_error
- * - height_mm_edid
- * - height_mm_edid_error
- * - gamma_red
- * - gamma_green
- * - gamma_blue
- * - gamma_error
- */
- libgamma_crtc_information_t crtc_info_template;
-
- /**
- * The adjustment method to use.
- */
- int real_method;
-
- /**
- * The number of sites on the system.
- */
- size_t site_count;
-
- /**
- * The number of paritions on a site before it has been configured.
- */
- size_t default_partition_count;
-
- /**
- * The number of CRTC:s on a paritions before it has been configured.
- */
- size_t default_crtc_count;
-
- /**
- * Whether the sites should be inherited from the real method.
- */
- unsigned inherit_sites : 1;
-
- /**
- * Whether the partitions should be inherited from the real method.
- */
- unsigned inherit_partition_count : 1;
-
- /**
- * Whether the CRTC:s should be inherited from the real method.
- */
- unsigned inherit_crtc_count : 1;
-
- /**
- * When a site has been created, stall until the partition count has
- * been configured.
- */
- unsigned stall_for_partition_count : 1;
-
- /**
- * When a parition has been created, stall until the CRTC count has
- * been configured.
- */
- unsigned stall_for_crtc_count : 1;
-
- /**
- * Methods should stall until the system has been configured
- * unless $LIBGAMMA_DUMMY_STALL is not true.
- */
- unsigned stalled_start : 1;
-
- /**
- * Whether to print what is going on in the phony system.
- */
- unsigned verbose : 1;
-
-} libgamma_dummy_configurations_t;
-
-
-/**
- * Dummy adjustment method internal data for a CRTC.
- */
-typedef struct libgamma_dummy_crtc
-{
- /**
- * The gamma ramp for the red channel.
- */
- void* restrict gamma_red;
-
- /**
- * The gamma ramp for the green channel.
- */
- void* restrict gamma_green;
-
- /**
- * The gamma ramp for the blue channel.
- */
- void* restrict gamma_blue;
-
- /**
- * Information about the CRTC and monitor.
- *
- * Some fields are ignored:
- * - width_mm_edid
- * - width_mm_edid_error
- * - height_mm_edid
- * - height_mm_edid_error
- * - gamma_red
- * - gamma_green
- * - gamma_blue
- * - gamma_error
- */
- libgamma_crtc_information_t info;
-
- /**
- * Partition state that contains this information.
- */
- libgamma_crtc_state_t* state;
-
-} libgamma_dummy_crtc_t;
-
-
-/**
- * Dummy adjustment method internal data for a partition.
- */
-typedef struct libgamma_dummy_partition
-{
- /**
- * The CRTC:s on the system.
- */
- libgamma_dummy_crtc_t* crtcs;
-
- /**
- * The number of CRTC:s on the system.
- */
- size_t crtc_count;
-
- /**
- * Partition state that contains this information.
- */
- libgamma_partition_state_t* state;
-
-} libgamma_dummy_partition_t;
-
-
-/**
- * Dummy adjustment method internal data for a site.
- */
-typedef struct libgamma_dummy_site
-{
- /**
- * The partitions on the system.
- */
- libgamma_dummy_partition_t* partitions;
-
- /**
- * The number of partitions on the system.
- */
- size_t partition_count;
-
- /**
- * Site state that contains this information.
- */
- libgamma_site_state_t* state;
-
-} libgamma_dummy_site_t;
-
-
-
-/**
- * Restore the gamma ramps for a CRTC to the system settings for that CRTC
- * and ignore the method's capabilities.
- *
- * @param this The CRTC data
- * @return Zero on success, otherwise (negative) the value of an
- * error identifier provided by this library.
- */
-static int libgamma_dummy_crtc_restore_forced(libgamma_dummy_crtc_t* restrict data);
-
-
-
-/**
- * Configurations for the dummy adjustment method.
- */
-static libgamma_dummy_configurations_t libgamma_dummy_configurations =
- {
- .capabilities =
- {
- .crtc_information = (1 << LIBGAMMA_CRTC_INFO_COUNT) - 1,
- .default_site_known = 1,
- .multiple_sites = 1,
- .multiple_partitions = 1,
- .multiple_crtcs = 1,
- .partitions_are_graphics_cards = 1,
- .site_restore = 1,
- .partition_restore = 1,
- .crtc_restore = 1,
- .identical_gamma_sizes = 0,
- .fixed_gamma_size = 0,
- .fixed_gamma_depth = 0,
- },
- .crtc_info_template =
- {
- .edid = NULL,
- .edid_length = 0,
- .edid_error = LIBGAMMA_EDID_NOT_FOUND,
- .width_mm = 400,
- .width_mm_error = 0,
- .height_mm = 300,
- .height_mm_error = 0,
- .red_gamma_size = 1024,
- .green_gamma_size = 2048,
- .blue_gamma_size = 512,
- .gamma_size_error = 0,
- .gamma_depth = 64,
- .gamma_depth_error = 0,
- .gamma_support = 1,
- .gamma_support_error = 0,
- .subpixel_order = LIBGAMMA_SUBPIXEL_ORDER_HORIZONTAL_RGB,
- .subpixel_order_error = 0,
- .active = 1,
- .active_error = 0,
- .connector_name = NULL,
- .connector_name_error = LIBGAMMA_CONNECTOR_TYPE_NOT_RECOGNISED,
- .connector_type = LIBGAMMA_CONNECTOR_TYPE_Unknown,
- .connector_type_error = 0,
- },
- .real_method = LIBGAMMA_METHOD_DUMMY,
- .site_count = 2,
- .default_partition_count = 2,
- .default_crtc_count = 2,
- .inherit_sites = 1,
- .inherit_partition_count = 1,
- .inherit_crtc_count = 1,
- .stall_for_partition_count = 0,
- .stall_for_crtc_count = 0,
- .stalled_start = 1,
- .verbose = 0
- };
-
-
-
-/**
- * Return the capabilities of the adjustment method.
- *
- * @param this The data structure to fill with the method's capabilities.
- */
-void libgamma_dummy_method_capabilities(libgamma_method_capabilities_t* restrict this)
-{
- *this = libgamma_dummy_configurations.capabilities;
- this->real = libgamma_dummy_configurations.real_method != LIBGAMMA_METHOD_DUMMY;
- this->fake = this->real;
-}
-
-
-/**
- * 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_dummy_site_initialise(libgamma_site_state_t* restrict this,
- char* restrict site)
-{
- libgamma_dummy_site_t* data = NULL;
- size_t i, sites, crtcs;
-
- sites = libgamma_dummy_configurations.site_count;
- if (libgamma_dummy_configurations.capabilities.multiple_sites == 0)
- sites = sites == 0 ? 0 : 1;
- this->data = NULL;
-
- if ((site != NULL) && (*site) && ((atoll(site) < 0) || (sites <= (unsigned long long)atoll(site))))
- return LIBGAMMA_NO_SUCH_SITE;
-
- data = malloc(sizeof(libgamma_dummy_site_t));
- if (data == NULL)
- goto fail;
-
- this->data = data;
- data->state = this;
-
- data->partition_count = libgamma_dummy_configurations.default_partition_count;
- if (libgamma_dummy_configurations.capabilities.multiple_partitions == 0)
- data->partition_count = data->partition_count == 0 ? 0 : 1;
-
- crtcs = libgamma_dummy_configurations.default_crtc_count;
- if (libgamma_dummy_configurations.capabilities.multiple_crtcs == 0)
- crtcs = crtcs == 0 ? 0 : 1;
-
- data->partitions = malloc(data->partition_count * sizeof(libgamma_dummy_partition_t));
- if (data->partitions == NULL)
- goto fail;
-
- for (i = 0; i < data->partition_count; i++)
- data->partitions[i].crtc_count = crtcs;
-
- return 0;
-
- fail:
- free(data);
- this->data = NULL;
- return LIBGAMMA_ERRNO_SET;
-}
-
-
-/**
- * Release all resources held by a site state.
- *
- * @param this The site state.
- */
-void libgamma_dummy_site_destroy(libgamma_site_state_t* restrict this)
-{
- libgamma_dummy_site_t* data = this->data;
- if (data == NULL)
- return;
-
- free(data->partitions);
- free(data);
-}
-
-
-/**
- * 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_dummy_site_restore(libgamma_site_state_t* restrict this)
-{
- libgamma_dummy_site_t* data = this->data;
- size_t i, j;
-
- if (libgamma_dummy_configurations.capabilities.site_restore == 0)
- return errno = ENOTSUP, LIBGAMMA_ERRNO_SET;
-
- for (j = 0; j < data->partition_count; j++)
- for (i = 0; i < data->partitions[j].crtc_count; i++)
- if (libgamma_dummy_crtc_restore_forced(data->partitions[j].crtcs + i) < 0)
- return -1;
-
- 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_dummy_partition_initialise(libgamma_partition_state_t* restrict this,
- libgamma_site_state_t* restrict site, size_t partition)
-{
- libgamma_crtc_information_t template = libgamma_dummy_configurations.crtc_info_template;
- libgamma_dummy_site_t* site_data = site->data;
- libgamma_dummy_partition_t* data = site_data->partitions + partition;
- libgamma_dummy_crtc_t* crtc_data;
- size_t i;
-
- this->data = NULL;
-
- if (partition >= site_data->partition_count)
- return LIBGAMMA_NO_SUCH_PARTITION;
-
- this->data = data;
- data->state = this;
-
- data->crtcs = calloc(data->crtc_count, sizeof(libgamma_dummy_crtc_t));
- if (data->crtcs == NULL)
- goto fail;
- for (i = 0; i < data->crtc_count; i++)
- {
- crtc_data = data->crtcs + i;
- crtc_data->info = template;
-
- /* Duplicate strings. */
- if (crtc_data->info.edid != NULL)
- {
- crtc_data->info.edid = malloc(crtc_data->info.edid_length * sizeof(char));
- if (crtc_data->info.edid == NULL)
- goto fail;
- memcpy(crtc_data->info.edid, template.edid, crtc_data->info.edid_length * sizeof(char));
- }
- if (crtc_data->info.connector_name != NULL)
- {
- size_t n = strlen(crtc_data->info.connector_name);
- crtc_data->info.connector_name = malloc((n + 1) * sizeof(char));
- if (crtc_data->info.connector_name == NULL)
- goto fail;
- memcpy(crtc_data->info.connector_name, template.connector_name, (n + 1) * sizeof(char));
- }
- }
-
- return 0;
-
- fail:
- for (i = 0; i < data->crtc_count; i++)
- {
- free(data->crtcs[i].info.edid);
- free(data->crtcs[i].info.connector_name);
- }
- free(data->crtcs);
- data->crtcs = NULL;
- return LIBGAMMA_ERRNO_SET;
-}
-
-
-/**
- * Release all resources held by a partition state.
- *
- * @param this The partition state.
- */
-void libgamma_dummy_partition_destroy(libgamma_partition_state_t* restrict this)
-{
- libgamma_dummy_partition_t* data = this->data;
- size_t i;
-
- if (data == NULL)
- return;
-
- for (i = 0; i < data->crtc_count; i++)
- {
- free(data->crtcs[i].info.edid);
- free(data->crtcs[i].info.connector_name);
- }
- free(data->crtcs);
- data->crtcs = NULL;
-}
-
-
-/**
- * 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_dummy_partition_restore(libgamma_partition_state_t* restrict this)
-{
- libgamma_dummy_partition_t* data = this->data;
- size_t i;
-
- if (libgamma_dummy_configurations.capabilities.partition_restore == 0)
- return errno = ENOTSUP, LIBGAMMA_ERRNO_SET;
-
- for (i = 0; i < data->crtc_count; i++)
- if (libgamma_dummy_crtc_restore_forced(data->crtcs + i) < 0)
- return -1;
-
- return 0;
-}
-
-
-
-/**
- * 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_dummy_crtc_initialise(libgamma_crtc_state_t* restrict this,
- libgamma_partition_state_t* restrict partition, size_t crtc)
-{
- libgamma_dummy_partition_t* partition_data = partition->data;
- libgamma_dummy_crtc_t* data = partition_data->crtcs + crtc;
- size_t stop_size;
-
- this->data = NULL;
-
- if (crtc >= partition_data->crtc_count)
- return LIBGAMMA_NO_SUCH_CRTC;
-
- this->data = data;
- data->state = this;
-
- if (data->info.gamma_depth == -1)
- stop_size = sizeof(float);
- else if (data->info.gamma_depth == -2)
- stop_size = sizeof(double);
- else
- stop_size = (size_t)(data->info.gamma_depth) / 8;
-
- if ((data->gamma_red = malloc(data->info.red_gamma_size * stop_size)) == NULL)
- goto fail;
- if ((data->gamma_green = malloc(data->info.green_gamma_size * stop_size)) == NULL)
- goto fail;
- if ((data->gamma_blue = malloc(data->info.blue_gamma_size * stop_size)) == NULL)
- goto fail;
-
- return libgamma_dummy_crtc_restore_forced(data);
-
- fail:
- free(data->gamma_red), data->gamma_red = NULL;
- free(data->gamma_green), data->gamma_green = NULL;
- free(data->gamma_blue), data->gamma_blue = NULL;
- return LIBGAMMA_ERRNO_SET;
-}
-
-
-/**
- * Release all resources held by a CRTC state.
- *
- * @param this The CRTC state.
- */
-void libgamma_dummy_crtc_destroy(libgamma_crtc_state_t* restrict this)
-{
- libgamma_dummy_crtc_t* data = this->data;
- if (data == NULL)
- return;
-
- free(data->gamma_red), data->gamma_red = NULL;
- free(data->gamma_green), data->gamma_green = NULL;
- free(data->gamma_blue), data->gamma_blue = NULL;
-}
-
-
-/**
- * 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_dummy_crtc_restore(libgamma_crtc_state_t* restrict this)
-{
- if (libgamma_dummy_configurations.capabilities.crtc_restore == 0)
- return errno = ENOTSUP, LIBGAMMA_ERRNO_SET;
-
- return libgamma_dummy_crtc_restore_forced(this->data);
-}
-
-
-/**
- * Restore the gamma ramps for a CRTC to the system settings for that CRTC
- * and ignore the method's capabilities.
- *
- * @param this The CRTC data
- * @return Zero on success, otherwise (negative) the value of an
- * error identifier provided by this library.
- */
-static int libgamma_dummy_crtc_restore_forced(libgamma_dummy_crtc_t* restrict data)
-{
- size_t rn = data->info.blue_gamma_size;
- size_t gn = data->info.green_gamma_size;
- size_t bn = data->info.blue_gamma_size;
- size_t i;
- if (data->gamma_red == NULL)
- return 0;
-
-#define __reset_ramps(BITS) \
- int ## BITS ## _t* red = data->gamma_red; \
- int ## BITS ## _t* green = data->gamma_green; \
- int ## BITS ## _t* blue = data->gamma_blue; \
- double max = (double)INT ## BITS ## _MAX; \
- for (i = 0; i < rn; i++) \
- red[i] = (int ## BITS ## _t)(max * ((double)i / (double)(rn - 1))); \
- for (i = 0; i < gn; i++) \
- green[i] = (int ## BITS ## _t)(max * ((double)i / (double)(gn - 1))); \
- for (i = 0; i < bn; i++) \
- blue[i] = (int ## BITS ## _t)(max * ((double)i / (double)(bn - 1)))
-
- if (data->info.gamma_depth == 8) { __reset_ramps(8); }
- else if (data->info.gamma_depth == 16) { __reset_ramps(16); }
- else if (data->info.gamma_depth == 32) { __reset_ramps(32); }
- else if (data->info.gamma_depth == 64) { __reset_ramps(64); }
- else if (data->info.gamma_depth == -1)
- {
- float* red = data->gamma_red;
- float* green = data->gamma_green;
- float* blue = data->gamma_blue;
- for (i = 0; i < rn; i++)
- red[i] = (float)((double)i / (double)(rn - 1));
- for (i = 0; i < gn; i++)
- green[i] = (float)((double)i / (double)(gn - 1));
- for (i = 0; i < bn; i++)
- blue[i] = (float)((double)i / (double)(bn - 1));
- }
- else
- {
- double* red = data->gamma_red;
- double* green = data->gamma_green;
- double* blue = data->gamma_blue;
- for (i = 0; i < rn; i++)
- red[i] = (double)i / (double)(rn - 1);
- for (i = 0; i < gn; i++)
- green[i] = (double)i / (double)(gn - 1);
- for (i = 0; i < bn; i++)
- blue[i] = (double)i / (double)(bn - 1);
- }
-
-#undef __reset_ramps
-
- return 0;
-}
-
-
-
-/**
- * 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_dummy_get_crtc_information(libgamma_crtc_information_t* restrict this,
- libgamma_crtc_state_t* restrict crtc, int32_t fields)
-{
- libgamma_dummy_crtc_t* restrict data = crtc->data;
- int supported = libgamma_dummy_configurations.capabilities.crtc_information;
- int e = 0;
-
- /* Copy over information. */
- *this = data->info;
-
- /* Duplicate strings. */
- if (this->edid != NULL)
- {
- this->edid = malloc(this->edid_length * sizeof(char));
- if (this->edid == NULL)
- this->edid_error = errno;
- memcpy(this->edid, data->info.edid, this->edid_length * sizeof(char));
- }
- if (this->connector_name != NULL)
- {
- size_t n = strlen(this->connector_name);
- this->connector_name = malloc((n + 1) * sizeof(char));
- if (this->connector_name == NULL)
- this->connector_name_error = errno;
- memcpy(this->connector_name, data->info.connector_name, (n + 1) * sizeof(char));
- }
-
- /* Parse EDID. */
- if ((fields & (LIBGAMMA_CRTC_INFO_MACRO_EDID ^ LIBGAMMA_CRTC_INFO_EDID)))
- e |= libgamma_parse_edid(this, fields);
-
- /* Test errors. */
-#define _E(FIELD, VAR) \
- ((fields & FIELD) ? ((supported & FIELD) ? VAR : (VAR = LIBGAMMA_CRTC_INFO_NOT_SUPPORTED)) : 0)
- e |= _E(LIBGAMMA_CRTC_INFO_EDID, this->edid_error);
- e |= _E(LIBGAMMA_CRTC_INFO_WIDTH_MM, this->width_mm_error);
- e |= _E(LIBGAMMA_CRTC_INFO_HEIGHT_MM, this->height_mm_error);
- e |= _E(LIBGAMMA_CRTC_INFO_GAMMA_SIZE, this->gamma_size_error);
- e |= _E(LIBGAMMA_CRTC_INFO_GAMMA_DEPTH, this->gamma_depth_error);
- e |= _E(LIBGAMMA_CRTC_INFO_GAMMA_SUPPORT, this->gamma_support_error);
- e |= _E(LIBGAMMA_CRTC_INFO_SUBPIXEL_ORDER, this->subpixel_order_error);
- e |= _E(LIBGAMMA_CRTC_INFO_ACTIVE, this->active_error);
- e |= _E(LIBGAMMA_CRTC_INFO_CONNECTOR_NAME, this->connector_name_error);
- e |= _E(LIBGAMMA_CRTC_INFO_CONNECTOR_TYPE, this->connector_type_error);
-
- if ((fields & LIBGAMMA_CRTC_INFO_WIDTH_MM_EDID) && !(supported & LIBGAMMA_CRTC_INFO_WIDTH_MM_EDID))
- e |= this->width_mm_edid_error = LIBGAMMA_CRTC_INFO_NOT_SUPPORTED;
- if ((fields & LIBGAMMA_CRTC_INFO_HEIGHT_MM_EDID) && !(supported & LIBGAMMA_CRTC_INFO_HEIGHT_MM_EDID))
- e |= this->height_mm_edid_error = LIBGAMMA_CRTC_INFO_NOT_SUPPORTED;
- if ((fields & LIBGAMMA_CRTC_INFO_GAMMA) && !(supported & LIBGAMMA_CRTC_INFO_GAMMA))
- e |= this->gamma_error = LIBGAMMA_CRTC_INFO_NOT_SUPPORTED;
-#undef _E
-
- return e ? -1 : 0;
-}
-
-
-/**
- * Get current the gamma ramps for a CRTC, 8-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_dummy_crtc_get_gamma_ramps8(libgamma_crtc_state_t* restrict this,
- libgamma_gamma_ramps8_t* restrict ramps)
-{
-}
-
-
-/**
- * Set the gamma ramps for a CRTC, 8-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_dummy_crtc_set_gamma_ramps8(libgamma_crtc_state_t* restrict this,
- libgamma_gamma_ramps8_t ramps)
-{
-}
-
-
-
-/**
- * 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_dummy_crtc_get_gamma_ramps16(libgamma_crtc_state_t* restrict this,
- libgamma_gamma_ramps16_t* restrict ramps)
-{
-}
-
-
-/**
- * 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_dummy_crtc_set_gamma_ramps16(libgamma_crtc_state_t* restrict this,
- libgamma_gamma_ramps16_t ramps)
-{
-}
-
-
-
-/**
- * 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_dummy_crtc_get_gamma_ramps32(libgamma_crtc_state_t* restrict this,
- libgamma_gamma_ramps32_t* restrict 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_dummy_crtc_set_gamma_ramps32(libgamma_crtc_state_t* restrict this,
- libgamma_gamma_ramps32_t 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_dummy_crtc_get_gamma_ramps64(libgamma_crtc_state_t* restrict this,
- libgamma_gamma_ramps64_t* restrict 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_dummy_crtc_set_gamma_ramps64(libgamma_crtc_state_t* restrict this,
- libgamma_gamma_ramps64_t 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_dummy_crtc_get_gamma_rampsf(libgamma_crtc_state_t* restrict this,
- libgamma_gamma_rampsf_t* restrict 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_dummy_crtc_set_gamma_rampsf(libgamma_crtc_state_t* restrict this,
- libgamma_gamma_rampsf_t 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_dummy_crtc_get_gamma_rampsd(libgamma_crtc_state_t* restrict this,
- libgamma_gamma_rampsd_t* restrict 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_dummy_crtc_set_gamma_rampsd(libgamma_crtc_state_t* restrict this,
- libgamma_gamma_rampsd_t ramps)
-{
-}
-