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Diffstat (limited to 'src/lib/gamma-dummy.c.gpp')
| -rw-r--r-- | src/lib/gamma-dummy.c.gpp | 1017 |
1 files changed, 1017 insertions, 0 deletions
diff --git a/src/lib/gamma-dummy.c.gpp b/src/lib/gamma-dummy.c.gpp new file mode 100644 index 0000000..c3d6856 --- /dev/null +++ b/src/lib/gamma-dummy.c.gpp @@ -0,0 +1,1017 @@ +/* -*- c -*- */ +/** + * 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 "libgamma-facade.h" +#include "edid.h" +#include "gamma-helper.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. + * + * @param 1 The data type for the ramp stop elements. + * @param 2 The `ramp*` pattern for the ramp structure and function to call. + * @param 3 Either of `bit8`, `bit16`, `bit32`, `bit64`, `float_single`, `float_double`; + * rather self-explanatory. + * @param 4 The number of bits in the gamma depth, -1 for single precision float, + * (`float`) and -2 for double percition float (`double`). + * @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. + */ +$>libgamma_dummy_crtc_get_gamma_ramps () +$>{ +int libgamma_dummy_crtc_get_gamma_${2}(libgamma_crtc_state_t* restrict this, + libgamma_gamma_${2}_t* restrict ramps) +{ + libgamma_dummy_crtc_t* data = this->data; + libgamma_gamma_ramps_any_t ramps_; + ${1}* r_ramp = data->gamma_red; + ${1}* g_ramp = data->gamma_green; + ${1}* b_ramp = data->gamma_blue; + size_t rn = data->info.red_gamma_size; + size_t gn = data->info.green_gamma_size; + size_t bn = data->info.blue_gamma_size; + size_t i; + +#ifdef DEBUG + /* Check gamma ramp sizes. */ + if (libgamma_dummy_configurations.capabilities.identical_gamma_sizes) + if ((ramps->red_size != ramps->green_size) || + (ramps->red_size != ramps->blue_size)) + return LIBGAMMA_MIXED_GAMMA_RAMP_SIZE; + if ((ramps->red_size != rn) || + (ramps->green_size != gn) || + (ramps->blue_size != bn)) + return LIBGAMMA_WRONG_GAMMA_RAMP_SIZE; +#endif + + if (data->info.gamma_support == 0) + return LIBGAMMA_GAMMA_RAMP_READ_FAILED; + +#define __trans(DEPTH, SUFFIX) \ + if (data->info.gamma_depth == DEPTH) \ + return ramps_.${3} = *ramps, \ + libgamma_translated_ramp_get(this, &ramps_, ${4}, DEPTH, libgamma_crtc_get_gamma_ramps ## SUFFIX) +$>if [ ! ${4} = 8 ]; then + __trans(8, 8); +$>fi +$>if [ ! ${4} = 16 ]; then + __trans(16, 16); +$>fi +$>if [ ! ${4} = 32 ]; then + __trans(32, 32); +$>fi +$>if [ ! ${4} = 64 ]; then + __trans(64, 64); +$>fi +$>if [ ! ${4} = -1 ]; then + __trans(-1, f); +$>fi +$>if [ ! ${4} = -2 ]; then + __trans(-2, d); +$>fi +#undef __trans + + for (i = 0; i < rn; i++) ramps->red[i] = r_ramp[i]; + for (i = 0; i < gn; i++) ramps->green[i] = g_ramp[i]; + for (i = 0; i < bn; i++) ramps->blue[i] = b_ramp[i]; + + return 0; +} +$>} + + +/** + * Set the gamma ramps for a CRTC. + * + * @param 1 The data type for the ramp stop elements. + * @param 2 The `ramp*` pattern for the ramp structure and function to call. + * @param 3 Either of `bit8`, `bit16`, `bit32`, `bit64`, `float_single`, `float_double`; + * rather self-explanatory. + * @param 4 The number of bits in the gamma depth, -1 for single precision float, + * (`float`) and -2 for double percition float (`double`). + * @param this The CRTC state. + * @param ramps The gamma ramps to apply. + * @return Zero on success, otherwise (negative) the value of an + * error identifier provided by this library. + */ +$>libgamma_dummy_crtc_set_gamma_ramps () +$>{ +int libgamma_dummy_crtc_set_gamma_${2}(libgamma_crtc_state_t* restrict this, + libgamma_gamma_${2}_t ramps) +{ + libgamma_dummy_crtc_t* data = this->data; + libgamma_gamma_ramps_any_t ramps_; + ${1}* r_ramp = data->gamma_red; + ${1}* g_ramp = data->gamma_green; + ${1}* b_ramp = data->gamma_blue; + size_t rn = data->info.red_gamma_size; + size_t gn = data->info.green_gamma_size; + size_t bn = data->info.blue_gamma_size; + size_t i; + +#ifdef DEBUG + /* Check gamma ramp sizes. */ + if (libgamma_dummy_configurations.capabilities.identical_gamma_sizes) + if ((ramps.red_size != ramps.green_size) || + (ramps.red_size != ramps.blue_size)) + return LIBGAMMA_MIXED_GAMMA_RAMP_SIZE; + if ((ramps.red_size != rn) || + (ramps.green_size != gn) || + (ramps.blue_size != bn)) + return LIBGAMMA_WRONG_GAMMA_RAMP_SIZE; +#endif + + if (data->info.gamma_support == 0) + return LIBGAMMA_GAMMA_RAMP_READ_FAILED; + +#define __trans(DEPTH, SUFFIX) \ + if (data->info.gamma_depth == DEPTH) \ + return ramps_.${3} = ramps, \ + libgamma_translated_ramp_set(this, ramps_, ${4}, DEPTH, libgamma_crtc_set_gamma_ramps ## SUFFIX) +$>if [ ! ${4} = 8 ]; then + __trans(8, 8); +$>fi +$>if [ ! ${4} = 16 ]; then + __trans(16, 16); +$>fi +$>if [ ! ${4} = 32 ]; then + __trans(32, 32); +$>fi +$>if [ ! ${4} = 64 ]; then + __trans(64, 64); +$>fi +$>if [ ! ${4} = -1 ]; then + __trans(-1, f); +$>fi +$>if [ ! ${4} = -2 ]; then + __trans(-2, d); +$>fi +#undef __trans + + for (i = 0; i < rn; i++) r_ramp[i] = ramps.red[i]; + for (i = 0; i < gn; i++) g_ramp[i] = ramps.green[i]; + for (i = 0; i < bn; i++) b_ramp[i] = ramps.blue[i]; + + return 0; +} +$>} + + + +/** + * Get current the gamma ramps for a CRTC, 8-bit gamma-depth version. + * + * @param this The CRTC state. + * @param ramps The gamma ramps to fill with the current values. + * @return Zero on success, otherwise (negative) the value of an + * error identifier provided by this library. + */ +$>libgamma_dummy_crtc_get_gamma_ramps uint8_t ramps8 bits8 8 + + +/** + * 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. + */ +$>libgamma_dummy_crtc_set_gamma_ramps uint8_t ramps8 bits8 8 + + + +/** + * Get current the gamma ramps for a CRTC, 16-bit gamma-depth version. + * + * @param this The CRTC state. + * @param ramps The gamma ramps to fill with the current values. + * @return Zero on success, otherwise (negative) the value of an + * error identifier provided by this library. + */ +$>libgamma_dummy_crtc_get_gamma_ramps uint16_t ramps16 bits16 16 + + +/** + * 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. + */ +$>libgamma_dummy_crtc_set_gamma_ramps uint16_t ramps16 bits16 16 + + + +/** + * Get current the gamma ramps for a CRTC, 32-bit gamma-depth version. + * + * @param this The CRTC state. + * @param ramps The gamma ramps to fill with the current values. + * @return Zero on success, otherwise (negative) the value of an + * error identifier provided by this library. + */ +$>libgamma_dummy_crtc_get_gamma_ramps uint32_t ramps32 bits32 32 + + +/** + * 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. + */ +$>libgamma_dummy_crtc_set_gamma_ramps uint32_t ramps32 bits32 32 + + + +/** + * Get current the gamma ramps for a CRTC, 64-bit gamma-depth version. + * + * @param this The CRTC state. + * @param ramps The gamma ramps to fill with the current values. + * @return Zero on success, otherwise (negative) the value of an + * error identifier provided by this library. + */ +$>libgamma_dummy_crtc_get_gamma_ramps uint64_t ramps64 bits64 64 + + +/** + * 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. + */ +$>libgamma_dummy_crtc_set_gamma_ramps uint64_t ramps64 bits64 64 + + + +/** + * Get current the gamma ramps for a CRTC, `float` version. + * + * @param this The CRTC state. + * @param ramps The gamma ramps to fill with the current values. + * @return Zero on success, otherwise (negative) the value of an + * error identifier provided by this library. + */ +$>libgamma_dummy_crtc_get_gamma_ramps float rampsf float_single -1 + + +/** + * 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. + */ +$>libgamma_dummy_crtc_set_gamma_ramps float rampsf float_single -1 + + + +/** + * Get current the gamma ramps for a CRTC, `double` version. + * + * @param this The CRTC state. + * @param ramps The gamma ramps to fill with the current values. + * @return Zero on success, otherwise (negative) the value of an + * error identifier provided by this library. + */ +$>libgamma_dummy_crtc_get_gamma_ramps double rampsd float_double -2 + + +/** + * 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. + */ +$>libgamma_dummy_crtc_set_gamma_ramps double rampsd float_double -2 + |