From f52513b09580c1533e6c48a4162d3d5f61f3b081 Mon Sep 17 00:00:00 2001 From: Mattias Andrée Date: Fri, 5 Mar 2021 18:23:13 +0100 Subject: misc MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Mattias Andrée --- libgamma_dummy_site_initialise.c | 62 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 libgamma_dummy_site_initialise.c (limited to 'libgamma_dummy_site_initialise.c') diff --git a/libgamma_dummy_site_initialise.c b/libgamma_dummy_site_initialise.c new file mode 100644 index 0000000..066f145 --- /dev/null +++ b/libgamma_dummy_site_initialise.c @@ -0,0 +1,62 @@ +/* See LICENSE file for copyright and license details. */ +#include "common.h" + + +/** + * 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. Once 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_internal_configurations.site_count; + if (!libgamma_dummy_internal_configurations.capabilities.multiple_sites) + sites = !!sites; + this->data = NULL; + + if (site && *site && (atoll(site) < 0 || sites <= (unsigned long long)atoll(site))) + return LIBGAMMA_NO_SUCH_SITE; + + data = malloc(sizeof(libgamma_dummy_site_t)); + if (!data) + goto fail; + + this->data = data; + data->state = this; + + data->partition_count = libgamma_dummy_internal_configurations.default_partition_count; + if (!libgamma_dummy_internal_configurations.capabilities.multiple_partitions) + data->partition_count = !!data->partition_count; + + crtcs = libgamma_dummy_internal_configurations.default_crtc_count; + if (!libgamma_dummy_internal_configurations.capabilities.multiple_crtcs) + crtcs = !!crtcs; + + data->partitions = malloc(data->partition_count * sizeof(libgamma_dummy_partition_t)); + if (!data->partitions) + goto fail; + + for (i = 0; i < data->partition_count; i++) + data->partitions[i].crtc_count = crtcs; + + this->partitions_available = data->partition_count; + + return 0; + +fail: + free(data); + this->data = NULL; + return LIBGAMMA_ERRNO_SET; +} -- cgit v1.2.3-70-g09d2