diff options
Diffstat (limited to '')
| -rw-r--r-- | src/lib/gamma-dummy.c | 372 |
1 files changed, 372 insertions, 0 deletions
diff --git a/src/lib/gamma-dummy.c b/src/lib/gamma-dummy.c index 664bcf1..494e5fa 100644 --- a/src/lib/gamma-dummy.c +++ b/src/lib/gamma-dummy.c @@ -22,6 +22,217 @@ #include "gamma-dummy.h" #include "libgamma-error.h" +#include "libgamma-method.h" + +#include <errno.h> +#include <stdint.h> +#include <stdlib.h> + + + +/** + * Configuration set for the dummy adjustment method. + */ +typedef struct libgamma_dummy_configurations +{ + /** + * The method's capabilities. + */ + libgamma_method_capabilities_t capabilities; + + /** + * 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; + + /** + * The number of stops in the gamma ramps. + */ + size_t gamma_size; + + /** + * The depth of the gamma ramps, -1 for `float`, -2 for `double`. + */ + int gamma_depth; + + /** + * CRTC 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 = 0, /* TODO */ + .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, + .real = 0, + .fake = 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 + }; + /** @@ -31,6 +242,9 @@ */ 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; } @@ -60,6 +274,12 @@ int libgamma_dummy_site_initialise(libgamma_site_state_t* restrict this, */ 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); } @@ -72,6 +292,18 @@ void libgamma_dummy_site_destroy(libgamma_site_state_t* restrict this) */ 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; } @@ -98,6 +330,12 @@ int libgamma_dummy_partition_initialise(libgamma_partition_state_t* restrict thi */ void libgamma_dummy_partition_destroy(libgamma_partition_state_t* restrict this) { + libgamma_dummy_partition_t* data = this->data; + if (data == NULL) + return; + + free(data->crtcs); + data->crtcs = NULL; } @@ -110,6 +348,17 @@ void libgamma_dummy_partition_destroy(libgamma_partition_state_t* restrict this) */ 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; } @@ -126,6 +375,40 @@ int libgamma_dummy_partition_restore(libgamma_partition_state_t* restrict this) 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->gamma_depth == -1) + stop_size = sizeof(float); + else if (data->gamma_depth == -2) + stop_size = sizeof(double); + else + stop_size = (size_t)(data->gamma_depth) / 8; + + data->gamma_red = malloc(3 * data->gamma_size * stop_size); + data->gamma_green = ((char*)(data->gamma_red)) + data->gamma_size * stop_size; + data->gamma_blue = ((char*)(data->gamma_green)) + data->gamma_size * stop_size; + + if (data->gamma_red == NULL) + goto fail; + + return libgamma_dummy_crtc_restore_forced(data); + + fail: + free(data->gamma_red); + data->gamma_red = NULL; + data->gamma_green = NULL; + data->gamma_blue = NULL; + return LIBGAMMA_ERRNO_SET; } @@ -136,6 +419,14 @@ int libgamma_dummy_crtc_initialise(libgamma_crtc_state_t* restrict this, */ 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; + data->gamma_green = NULL; + data->gamma_blue = NULL; } @@ -148,6 +439,87 @@ void libgamma_dummy_crtc_destroy(libgamma_crtc_state_t* restrict this) */ 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 i, n = data->gamma_size; + if (data->gamma_red == NULL) + return 0; + + if (data->gamma_depth == 8) + { + int8_t* red = data->gamma_red; + int8_t* green = data->gamma_green; + int8_t* blue = data->gamma_blue; + double max = (double)INT8_MAX; + for (i = 0; i < n; i++) + red[i] = green[i] = blue[i] = + (int8_t)(max * ((double)i / (double)(n - 1))); + } + else if (data->gamma_depth == 16) + { + int16_t* red = data->gamma_red; + int16_t* green = data->gamma_green; + int16_t* blue = data->gamma_blue; + double max = (double)INT16_MAX; + for (i = 0; i < n; i++) + red[i] = green[i] = blue[i] = + (int16_t)(max * ((double)i / (double)(n - 1))); + } + else if (data->gamma_depth == 32) + { + int32_t* red = data->gamma_red; + int32_t* green = data->gamma_green; + int32_t* blue = data->gamma_blue; + double max = (double)INT32_MAX; + for (i = 0; i < n; i++) + red[i] = green[i] = blue[i] = + (int32_t)(max * ((double)i / (double)(n - 1))); + } + else if (data->gamma_depth == 64) + { + int64_t* red = data->gamma_red; + int64_t* green = data->gamma_green; + int64_t* blue = data->gamma_blue; + double max = (double)INT64_MAX; + for (i = 0; i < n; i++) + red[i] = green[i] = blue[i] = + (int64_t)(max * ((double)i / (double)(n - 1))); + } + else if (data->gamma_depth == -1) + { + float* red = data->gamma_red; + float* green = data->gamma_green; + float* blue = data->gamma_blue; + for (i = 0; i < n; i++) + red[i] = green[i] = blue[i] = + (float)((double)i / (double)(n - 1)); + } + else + { + double* red = data->gamma_red; + double* green = data->gamma_green; + double* blue = data->gamma_blue; + for (i = 0; i < n; i++) + red[i] = green[i] = blue[i] = + (double)i / (double)(n - 1); + } + + return 0; } |