/* * Copyright 2021 Collabora, Ltd. * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial * portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include "config.h" #include #include "color.h" #include "shared/helpers.h" #include "shared/xalloc.h" #include "shared/weston-assert.h" struct cmnoop_color_profile { struct weston_color_profile base; }; struct weston_color_manager_noop { struct weston_color_manager base; struct cmnoop_color_profile *stock_cprof; /* no real content */ }; static bool check_output_eotf_mode(struct weston_output *output) { if (output->eotf_mode == WESTON_EOTF_MODE_SDR) return true; weston_log("Error: color manager no-op does not support EOTF mode %s of output %s.\n", weston_eotf_mode_to_str(output->eotf_mode), output->name); return false; } static struct weston_color_manager_noop * to_cmnoop(struct weston_color_manager *cm_base) { return container_of(cm_base, struct weston_color_manager_noop, base); } static inline struct cmnoop_color_profile * to_cmnoop_cprof(struct weston_color_profile *cprof_base) { return container_of(cprof_base, struct cmnoop_color_profile, base); } static struct cmnoop_color_profile * ref_cprof(struct cmnoop_color_profile *cprof) { if (!cprof) return NULL; weston_color_profile_ref(&cprof->base); return cprof; } static void unref_cprof(struct cmnoop_color_profile *cprof) { if (!cprof) return; weston_color_profile_unref(&cprof->base); } static void cmnoop_color_profile_destroy(struct cmnoop_color_profile *cprof) { free(cprof->base.description); free(cprof); } static void cmnoop_destroy_color_profile(struct weston_color_profile *cprof_base) { struct cmnoop_color_profile *cprof = to_cmnoop_cprof(cprof_base); cmnoop_color_profile_destroy(cprof); } static struct cmnoop_color_profile * cmnoop_color_profile_create(struct weston_color_manager_noop *cm, char *desc) { struct cmnoop_color_profile *cprof; cprof = xzalloc(sizeof *cprof); weston_color_profile_init(&cprof->base, &cm->base); cprof->base.description = desc; return cprof; } static struct weston_color_profile * cmnoop_get_stock_sRGB_color_profile(struct weston_color_manager *cm_base) { struct weston_color_manager_noop *cm = to_cmnoop(cm_base); struct cmnoop_color_profile *cprof; cprof = ref_cprof(cm->stock_cprof); return &cprof->base; } static bool cmnoop_get_color_profile_from_icc(struct weston_color_manager *cm, const void *icc_data, size_t icc_len, const char *name_part, struct weston_color_profile **cprof_out, char **errmsg) { *errmsg = xstrdup("ICC profiles are unsupported."); return false; } static void cmnoop_destroy_color_transform(struct weston_color_transform *xform) { /* Never called, as never creates an actual color transform. */ } static bool cmnoop_get_surface_color_transform(struct weston_color_manager *cm_base, struct weston_surface *surface, struct weston_output *output, struct weston_surface_color_transform *surf_xform) { struct weston_compositor *compositor = output->compositor; struct weston_color_manager_noop *cmnoop = to_cmnoop(cm_base); /* If surface has a cprof, it has to be the stock one. */ if (surface->color_profile) weston_assert_ptr_eq(compositor, to_cmnoop_cprof(surface->color_profile), cmnoop->stock_cprof); /* The output must have a cprof, and it has to be the stock one. */ weston_assert_ptr(compositor, output->color_profile); weston_assert_ptr_eq(compositor, to_cmnoop_cprof(output->color_profile), cmnoop->stock_cprof); if (!check_output_eotf_mode(output)) return false; /* Identity transform */ surf_xform->transform = NULL; surf_xform->identity_pipeline = true; return true; } static struct weston_output_color_outcome * cmnoop_create_output_color_outcome(struct weston_color_manager *cm_base, struct weston_output *output) { struct weston_compositor *compositor = cm_base->compositor; struct weston_color_manager_noop *cmnoop = to_cmnoop(cm_base); struct weston_output_color_outcome *co; weston_assert_ptr(compositor, output->color_profile); weston_assert_ptr_eq(compositor, to_cmnoop_cprof(output->color_profile), cmnoop->stock_cprof); if (!check_output_eotf_mode(output)) return NULL; co = xzalloc(sizeof *co); /* Identity transform on everything */ co->from_blend_to_output = NULL; co->from_sRGB_to_blend = NULL; co->from_sRGB_to_output = NULL; co->hdr_meta.group_mask = 0; return co; } static bool cmnoop_create_stock_profile(struct weston_color_manager_noop *cm) { char *desc; desc = xstrdup("stock sRGB color profile"); cm->stock_cprof = cmnoop_color_profile_create(cm, desc); if (!cm->stock_cprof) { free(desc); return false; } return true; } static bool cmnoop_init(struct weston_color_manager *cm_base) { struct weston_color_manager_noop *cm = to_cmnoop(cm_base); if (!cmnoop_create_stock_profile(cm)) return false; /* No renderer requirements to check. */ return true; } static void cmnoop_destroy(struct weston_color_manager *cm_base) { struct weston_color_manager_noop *cmnoop = to_cmnoop(cm_base); /* TODO: change this assert to make sure that ref_count is equal to 1. * Currently we have a bug in which we leak surfaces when shutting down * Weston with client surfaces alive, and these surfaces may have a * reference to the stock sRGB profile. */ weston_assert_uint32_gt_or_eq(cm_base->compositor, cmnoop->stock_cprof->base.ref_count, 1); unref_cprof(cmnoop->stock_cprof); free(cmnoop); } struct weston_color_manager * weston_color_manager_noop_create(struct weston_compositor *compositor) { struct weston_color_manager_noop *cm; cm = xzalloc(sizeof *cm); cm->base.name = "no-op"; cm->base.compositor = compositor; cm->base.init = cmnoop_init; cm->base.destroy = cmnoop_destroy; cm->base.destroy_color_profile = cmnoop_destroy_color_profile; cm->base.get_stock_sRGB_color_profile = cmnoop_get_stock_sRGB_color_profile; cm->base.get_color_profile_from_icc = cmnoop_get_color_profile_from_icc; cm->base.send_image_desc_info = NULL; cm->base.destroy_color_transform = cmnoop_destroy_color_transform; cm->base.get_surface_color_transform = cmnoop_get_surface_color_transform; cm->base.create_output_color_outcome = cmnoop_create_output_color_outcome; /* We don't support anything related to the CM&HDR protocol extension */ cm->base.supported_color_features = 0; cm->base.supported_rendering_intents = 0; return &cm->base; }