path: root/src/wayland_ivi_wm.cpp

/*
 * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <utility>

#include "util.hpp"
#include "wayland_ivi_wm.hpp"
#include "hmi-debug.h"

/**
 * namespace wl
 */
namespace wl {

/**
 * display
 */
display::display()
   : d(std::unique_ptr<struct wl_display, void (*)(struct wl_display *)>(
        wl_display_connect(nullptr), &wl_display_disconnect)),
     r(d.get()) {}

bool display::ok() const { return d && wl_display_get_error(d.get()) == 0; }

void display::roundtrip() { wl_display_roundtrip(this->d.get()); }

int display::dispatch() { return wl_display_dispatch(this->d.get()); }

int display::dispatch_pending() { return wl_display_dispatch_pending(this->d.get()); }

int display::read_events() {
   ST();
   while (wl_display_prepare_read(this->d.get()) == -1) {
      STN(pending_events_dispatch);
      if (wl_display_dispatch_pending(this->d.get()) == -1) {
         return -1;
      }
   }

   if (wl_display_flush(this->d.get()) == -1) {
      return -1;
   }

   if (wl_display_read_events(this->d.get()) == -1) {
      wl_display_cancel_read(this->d.get());
   }

   return 0;
}

void display::flush() { wl_display_flush(this->d.get()); }

int display::get_fd() const { return wl_display_get_fd(this->d.get()); }

int display::get_error() { return wl_display_get_error(this->d.get()); }

/**
 * registry
 */
namespace {
void registry_global_created(void *data, struct wl_registry * /*r*/, uint32_t name,
                     char const *iface, uint32_t v) {
   static_cast<struct registry *>(data)->global_created(name, iface, v);
}

void registry_global_removed(void *data, struct wl_registry * /*r*/,
                            uint32_t name) {
   static_cast<struct registry *>(data)->global_removed(name);
}

constexpr struct wl_registry_listener registry_listener = {
   registry_global_created, registry_global_removed};
} // namespace

registry::registry(struct wl_display *d)
   : wayland_proxy(d == nullptr ? nullptr : wl_display_get_registry(d)) {
   if (this->proxy != nullptr) {
      wl_registry_add_listener(this->proxy.get(), &registry_listener, this);
   }
}

void registry::add_global_handler(char const *iface, binder bind) {
   this->bindings[iface] = std::move(bind);
}

void registry::global_created(uint32_t name, char const *iface, uint32_t v) {
   auto b = this->bindings.find(iface);
   if (b != this->bindings.end()) {
      b->second(this->proxy.get(), name, v);
   }
   HMI_DEBUG("wm", "wl::registry @ %p global n %u i %s v %u", this->proxy.get(), name,
            iface, v);
}

void registry::global_removed(uint32_t /*name*/) {}

/**
 * output
 */
namespace {
void output_geometry(void *data, struct wl_output * /*wl_output*/, int32_t x,
                     int32_t y, int32_t physical_width, int32_t physical_height,
                     int32_t subpixel, const char *make, const char *model,
                     int32_t transform) {
   static_cast<struct output *>(data)->geometry(
      x, y, physical_width, physical_height, subpixel, make, model, transform);
}

void output_mode(void *data, struct wl_output * /*wl_output*/, uint32_t flags,
                 int32_t width, int32_t height, int32_t refresh) {
   static_cast<struct output *>(data)->mode(flags, width, height, refresh);
}

void output_done(void *data, struct wl_output * /*wl_output*/) {
   static_cast<struct output *>(data)->done();
}

void output_scale(void *data, struct wl_output * /*wl_output*/,
                  int32_t factor) {
   static_cast<struct output *>(data)->scale(factor);
}

constexpr struct wl_output_listener output_listener = {
   output_geometry, output_mode, output_done, output_scale};
} // namespace

output::output(struct wl_registry *r, uint32_t name, uint32_t v)
   : wayland_proxy(wl_registry_bind(r, name, &wl_output_interface, v)) {
   wl_output_add_listener(this->proxy.get(), &output_listener, this);
}

void output::geometry(int32_t x, int32_t y, int32_t pw, int32_t ph,
                      int32_t subpel, char const *make, char const *model,
                      int32_t tx) {
   HMI_DEBUG("wm",
      "wl::output %s @ %p x %i y %i w %i h %i spel %x make %s model %s tx %i",
      __func__, this->proxy.get(), x, y, pw, ph, subpel, make, model, tx);
   this->transform = tx;
}

void output::mode(uint32_t flags, int32_t w, int32_t h, int32_t r) {
   HMI_DEBUG("wm", "wl::output %s @ %p f %x w %i h %i r %i", __func__,
            this->proxy.get(), flags, w, h, r);
   if ((flags & WL_OUTPUT_MODE_CURRENT) != 0u) {
      this->width = w;
      this->height = h;
      this->refresh = r;
   }
}

void output::done() {
   HMI_DEBUG("wm", "wl::output %s @ %p done", __func__, this->proxy.get());
   // Pivot and flipped
   if (this->transform == WL_OUTPUT_TRANSFORM_90 ||
       this->transform == WL_OUTPUT_TRANSFORM_270 ||
       this->transform == WL_OUTPUT_TRANSFORM_FLIPPED_90 ||
       this->transform == WL_OUTPUT_TRANSFORM_FLIPPED_270) {
      std::swap(this->width, this->height);
   }
}

void output::scale(int32_t factor) {
   HMI_DEBUG("wm", "wl::output %s @ %p f %i", __func__, this->proxy.get(), factor);
}
}  // namespace wl

/**
 * namespace compositor
 */
namespace compositor {

namespace {

void surface_visibility_changed(
   void *data, struct ivi_wm * /*ivi_wm*/,
   uint32_t surface_id, int32_t visibility) {
   auto s = static_cast<struct surface *>(data);
   s->parent->surface_visibility_changed(s, visibility);
}

void surface_opacity_changed(void *data, struct ivi_wm * /*ivi_wm*/,
                     uint32_t surface_id, wl_fixed_t opacity) {
   auto s = static_cast<struct surface *>(data);
   s->parent->surface_opacity_changed(s, float(wl_fixed_to_double(opacity)));
}

void surface_source_rectangle_changed(
   void *data, struct ivi_wm * /*ivi_wm*/, uint32_t surface_id,
   int32_t x, int32_t y, int32_t width, int32_t height) {
   auto s = static_cast<struct surface *>(data);
   s->parent->surface_source_rectangle_changed(s, x, y, width, height);
}

void surface_destination_rectangle_changed(
   void *data, struct ivi_wm * /*ivi_wm*/, uint32_t surface_id,
   int32_t x, int32_t y, int32_t width, int32_t height) {
   auto s = static_cast<struct surface *>(data);
   s->parent->surface_destination_rectangle_changed(s, x, y, width, height);
}

void surface_created(void *data, struct ivi_wm * /*ivi_wm*/,
                        uint32_t id_surface) {
   static_cast<struct controller *>(data)->surface_created(id_surface);
}

void surface_destroyed(
   void *data, struct ivi_wm * /*ivi_wm*/, uint32_t surface_id) {
   auto s = static_cast<struct surface *>(data);
   s->parent->surface_destroyed(s, surface_id);
}

void surface_error_detected(void *data, struct ivi_wm * /*ivi_wm*/, uint32_t object_id,
                      uint32_t error_code, const char *error_text) {
   static_cast<struct controller *>(data)->surface_error_detected(
      object_id, error_code, error_text);
}

void surface_size_changed(
   void *data, struct ivi_wm * /*ivi_wm*/, uint32_t surface_id,
   int32_t width, int32_t height) {
   auto s = static_cast<struct surface *>(data);
   s->parent->surface_size_changed(s, width, height);
}

void surface_stats_received(void *data, struct ivi_wm * /*ivi_wm*/,
                   uint32_t surface_id, uint32_t frame_count, uint32_t pid) {
   auto s = static_cast<struct surface *>(data);
   s->parent->surface_stats_received(s, surface_id, frame_count, pid);
}

void surface_added_to_layer(void *data, struct ivi_wm * /*ivi_wm*/,
                   uint32_t layer_id, uint32_t surface_id) {
   auto s = static_cast<struct surface *>(data);
   s->parent->surface_added_to_layer(s, layer_id, surface_id);
}

void layer_visibility_changed(void *data, struct ivi_wm * /*ivi_wm*/,
                      uint32_t layer_id, int32_t visibility) {
   auto l = static_cast<struct layer *>(data);
   l->parent->layer_visibility_changed(l, layer_id, visibility);
}

void layer_opacity_changed(void *data, struct ivi_wm * /*ivi_wm*/,
                   uint32_t layer_id, wl_fixed_t opacity) {
   auto l = static_cast<struct layer *>(data);
   l->parent->layer_opacity_changed(l, layer_id, float(wl_fixed_to_double(opacity)));
}

void layer_source_rectangle_changed(
   void *data, struct ivi_wm * /*ivi_wm*/, uint32_t layer_id,
   int32_t x, int32_t y, int32_t width, int32_t height) {
   auto l = static_cast<struct layer *>(data);
   l->parent->layer_source_rectangle_changed(l, layer_id, x, y, width, height);
}

void layer_destination_rectangle_changed(
   void *data, struct ivi_wm * /*ivi_wm*/, uint32_t layer_id,
   int32_t x, int32_t y, int32_t width, int32_t height) {
   auto l = static_cast<struct layer *>(data);
   l->parent->layer_destination_rectangle_changed(l, layer_id, x, y, width, height);
}

void layer_created(void *data, struct ivi_wm * /*ivi_wm*/,
                      uint32_t id_layer) {
   static_cast<struct controller *>(data)->layer_created(id_layer);
}

void layer_destroyed(void *data, struct ivi_wm * /*ivi_wm*/, uint32_t layer_id) {
   auto l = static_cast<struct layer *>(data);
   l->parent->layer_destroyed(l, layer_id);
}

void layer_error_detected(void *data, struct ivi_wm * /*ivi_wm*/, uint32_t object_id,
                      uint32_t error_code, const char *error_text) {
   static_cast<struct controller *>(data)->layer_error_detected(
      object_id, error_code, error_text);
}

constexpr struct ivi_wm_listener listener = {
   surface_visibility_changed,            layer_visibility_changed,
   surface_opacity_changed,               layer_opacity_changed,
   surface_source_rectangle_changed,      layer_source_rectangle_changed,
   surface_destination_rectangle_changed, layer_destination_rectangle_changed,
   surface_created,                       layer_created,
   surface_destroyed,                     layer_destroyed,
   surface_error_detected,                layer_error_detected,
   surface_size_changed,
   surface_stats_received,
   surface_added_to_layer,
};

void screen_created(void *data, struct ivi_wm_screen *ivi_wm_screen, uint32_t id) {
   static_cast<struct screen *>(data)->screen_created((struct screen *)data, id);
}

void layer_added(void *data,
                    struct ivi_wm_screen *ivi_wm_screen,
                    uint32_t layer_id) {
   HMI_DEBUG("wm", "added layer_id:%d", layer_id);
}

void connector_name(void *data,
                    struct ivi_wm_screen *ivi_wm_screen,
                    const char *process_name) {
   HMI_DEBUG("wm", "process_name:%s", process_name);
}

void screen_error(void *data,
                  struct ivi_wm_screen *ivi_wm_screen,
                  uint32_t error,
                  const char *message) {
   HMI_DEBUG("wm", "screen error:%d message:%s", error, message);
}

constexpr struct ivi_wm_screen_listener screen_listener = {
   screen_created,
   layer_added,
   connector_name,
   screen_error,
};
} // namespace

/**
 * surface
 */
surface::surface(uint32_t i, struct controller *c)
   : controller_child(c, i) {
   this->parent->add_proxy_to_sid_mapping(this->parent->proxy.get(), i);
}

void surface::set_visibility(uint32_t visibility) {
   HMI_DEBUG("wm", "compositor::surface id:%d v:%d", this->id, visibility);
   ivi_wm_set_surface_visibility(this->parent->proxy.get(), this->id, visibility);
}

void surface::set_source_rectangle(int32_t x, int32_t y,
                                   int32_t width, int32_t height) {
   ivi_wm_set_surface_source_rectangle(this->parent->proxy.get(), this->id,
                                       x, y, width, height);
}

void surface::set_destination_rectangle(int32_t x, int32_t y,
                                        int32_t width, int32_t height) {
   ivi_wm_set_surface_destination_rectangle(this->parent->proxy.get(), this->id,
                                            x, y, width, height);
}


/**
 * layer
 */
layer::layer(uint32_t i, struct controller *c) : layer(i, 0, 0, c) {}

layer::layer(uint32_t i, int32_t w, int32_t h, struct controller *c)
   : controller_child(c, i) {
   this->parent->add_proxy_to_lid_mapping(this->parent->proxy.get(), i);
   ivi_wm_create_layout_layer(c->proxy.get(), i, w, h);
}

void layer::set_visibility(uint32_t visibility) {
   ivi_wm_set_layer_visibility(this->parent->proxy.get(), this->id, visibility);
}

void layer::set_destination_rectangle(int32_t x, int32_t y,
                                      int32_t width, int32_t height) {
   ivi_wm_set_layer_destination_rectangle(this->parent->proxy.get(), this->id,
                                          x, y, width, height);
}

void layer::add_surface(uint32_t surface_id) {
   ivi_wm_layer_add_surface(this->parent->proxy.get(), this->id, surface_id);
}

void layer::remove_surface(uint32_t surface_id) {
   ivi_wm_layer_remove_surface(this->parent->proxy.get(), this->id, surface_id);
}


/**
 * screen
 */
screen::screen(uint32_t i, struct controller *c, struct wl_output *o)
   : wayland_proxy(ivi_wm_create_screen(c->proxy.get(), o)),
     controller_child(c, i) {
   HMI_DEBUG("wm", "compositor::screen @ %p id %u o %p", this->proxy.get(), i, o);

   // Add listener for screen
   ivi_wm_screen_add_listener(this->proxy.get(), &screen_listener, this);
}

void screen::clear() { ivi_wm_screen_clear(this->proxy.get()); }

void screen::screen_created(struct screen *screen, uint32_t id) {
   HMI_DEBUG("wm", "compositor::screen @ %p screen %u (%x) @ %p", this->proxy.get(),
            id, id, screen);
   this->id = id;
   this->parent->screens[id] = screen;
}

void screen::set_render_order(std::vector<uint32_t> const &ro) {
   std::size_t i;

   // Remove all layers from the screen render order
   ivi_wm_screen_clear(this->proxy.get());

   for (i = 0; i < ro.size(); i++) {
      HMI_DEBUG("wm", "compositor::screen @ %p add layer %u", this->proxy.get(), ro[i]);
      // Add the layer to screen render order at nearest z-position
      ivi_wm_screen_add_layer(this->proxy.get(), ro[i]);
   }
}


/**
 * controller
 */
controller::controller(struct wl_registry *r, uint32_t name, uint32_t version)
   : wayland_proxy(
        wl_registry_bind(r, name, &ivi_wm_interface, version)),
     output_size{} {
   ivi_wm_add_listener(this->proxy.get(), &listener, this);
}

void controller::layer_create(uint32_t id, int32_t w, int32_t h) {
   this->layers[id] = std::make_unique<struct layer>(id, w, h, this);
}

void controller::surface_create(uint32_t id) {
   this->surfaces[id] = std::make_unique<struct surface>(id, this);

   // TODO: If Clipping is necessary, this process should be modified.
   {
      // Set surface type:IVI_WM_SURFACE_TYPE_DESKTOP)
      // for resizing wayland surface when switching from split to full surface.
      ivi_wm_set_surface_type(this->proxy.get(), id, IVI_WM_SURFACE_TYPE_DESKTOP);

      // Set source reactangle even if we should not need to set it
      // for enable setting for destination region.
      this->surfaces[id]->set_source_rectangle(0, 0, this->output_size.w, this->output_size.h);

      // Flush display
      this->display->flush();
   }
}

void controller::create_screen(struct wl_output *output) {
   // TODO: screen id is 0 (WM manages one screen for now)
   this->screen = std::make_unique<struct screen>(0, this, output);
}

void controller::layer_created(uint32_t id) {
   HMI_DEBUG("wm", "compositor::controller @ %p layer %u (%x)", this->proxy.get(), id, id);
   if (this->layers.find(id) != this->layers.end()) {
      HMI_DEBUG("wm", "WindowManager has created layer %u (%x) already", id, id);
   } else {
      this->layers[id] = std::make_unique<struct layer>(id, this);
   }
}

void controller::layer_error_detected(uint32_t object_id,
                                  uint32_t error_code, const char *error_text) {
   HMI_DEBUG("wm", "compositor::controller @ %p error o %d c %d text %s",
            this->proxy.get(), object_id, error_code, error_text);
}

void controller::surface_visibility_changed(struct surface *s, int32_t visibility) {
   HMI_DEBUG("wm", "compositor::surface %s @ %d v %i", __func__, s->id,
            visibility);
   this->sprops[s->id].visibility = visibility;
   this->chooks->surface_visibility(s->id, visibility);
}

void controller::surface_opacity_changed(struct surface *s, float opacity) {
   HMI_DEBUG("wm", "compositor::surface %s @ %d o %f", __func__, s->id,
            opacity);
   this->sprops[s->id].opacity = opacity;
}

void controller::surface_source_rectangle_changed(struct surface *s, int32_t x,
                                          int32_t y, int32_t width,
                                          int32_t height) {
   HMI_DEBUG("wm", "compositor::surface %s @ %d x %i y %i w %i h %i", __func__,
            s->id, x, y, width, height);
   this->sprops[s->id].src_rect = rect{width, height, x, y};
}

void controller::surface_destination_rectangle_changed(struct surface *s, int32_t x,
                                               int32_t y, int32_t width,
                                               int32_t height) {
   HMI_DEBUG("wm", "compositor::surface %s @ %d x %i y %i w %i h %i", __func__,
            s->id, x, y, width, height);
   this->sprops[s->id].dst_rect = rect{width, height, x, y};
   this->chooks->surface_destination_rectangle(s->id, x, y, width, height);
}

void controller::surface_size_changed(struct surface *s, int32_t width,
                                       int32_t height) {
   HMI_DEBUG("wm", "compositor::surface %s @ %d w %i h %i", __func__, s->id,
            width, height);
   this->sprops[s->id].size = size{uint32_t(width), uint32_t(height)};
}

void controller::surface_added_to_layer(struct surface * s,
                               uint32_t layer_id, uint32_t surface_id) {
   HMI_DEBUG("wm", "compositor::surface %s @ %d l %u",
             __func__, layer_id, surface_id);
}

void controller::surface_stats_received(struct surface *s, uint32_t surface_id,
                               uint32_t frame_count, uint32_t pid) {
   HMI_DEBUG("wm", "compositor::surface %s @ %d f %u pid %u",
             __func__, surface_id, frame_count, pid);
}

void controller::surface_created(uint32_t id) {
   HMI_DEBUG("wm", "compositor::controller @ %p surface %u (%x)", this->proxy.get(), id,
            id);
   if (this->surfaces.find(id) == this->surfaces.end()) {
      this->surfaces[id] = std::make_unique<struct surface>(id, this);
      this->chooks->surface_created(id);

      // TODO: If Clipping is necessary, this process should be modified.
      {
         // Set surface type:IVI_WM_SURFACE_TYPE_DESKTOP)
         // for resizing wayland surface when switching from split to full surface.
         ivi_wm_set_surface_type(this->proxy.get(), id, IVI_WM_SURFACE_TYPE_DESKTOP);

         // Set source reactangle even if we should not need to set it
         // for enable setting for destination region.
         this->surfaces[id]->set_source_rectangle(0, 0, this->output_size.w, this->output_size.h);

         // Flush display
         this->display->flush();
      }
   }
}

void controller::surface_destroyed(struct surface *s, uint32_t surface_id) {
   HMI_DEBUG("wm", "compositor::surface %s @ %d", __func__, surface_id);
   this->chooks->surface_removed(surface_id);
   this->sprops.erase(surface_id);
   this->surfaces.erase(surface_id);
}

void controller::surface_error_detected(uint32_t object_id,
                                  uint32_t error_code, const char *error_text) {
   HMI_DEBUG("wm", "compositor::controller @ %p error o %d c %d text %s",
            this->proxy.get(), object_id, error_code, error_text);
}

void controller::layer_visibility_changed(struct layer *l, uint32_t layer_id, int32_t visibility) {
   HMI_DEBUG("wm", "compositor::layer %s @ %d v %i", __func__, layer_id, visibility);
   this->lprops[layer_id].visibility = visibility;
}

void controller::layer_opacity_changed(struct layer *l, uint32_t layer_id, float opacity) {
   HMI_DEBUG("wm", "compositor::layer %s @ %d o %f", __func__, layer_id, opacity);
   this->lprops[layer_id].opacity = opacity;
}

void controller::layer_source_rectangle_changed(struct layer *l, uint32_t layer_id,
                                        int32_t x, int32_t y,
                                        int32_t width, int32_t height) {
   HMI_DEBUG("wm", "compositor::layer %s @ %d x %i y %i w %i h %i",
             __func__, layer_id, x, y, width, height);
   this->lprops[layer_id].src_rect = rect{width, height, x, y};
}

void controller::layer_destination_rectangle_changed(struct layer *l, uint32_t layer_id,
                                             int32_t x, int32_t y,
                                             int32_t width, int32_t height) {
   HMI_DEBUG("wm", "compositor::layer %s @ %d x %i y %i w %i h %i",
             __func__, layer_id, x, y, width, height);
   this->lprops[layer_id].dst_rect = rect{width, height, x, y};
}

void controller::layer_configuration(struct layer *l, int32_t width,
                                     int32_t height) {
   HMI_DEBUG("wm", "compositor::layer %s @ %d w %i h %i", __func__, l->id,
            width, height);
   this->lprops[l->id].size = size{uint32_t(width), uint32_t(height)};
}

void controller::layer_orientation(struct layer *l, int32_t orientation) {
   HMI_DEBUG("wm", "compositor::layer %s @ %d o %i", __func__, l->id,
            orientation);
   this->lprops[l->id].orientation = orientation;
}

void controller::layer_screen(struct layer *l, struct wl_output *screen) {
   HMI_DEBUG("wm", "compositor::layer %s @ %d s %p", __func__, l->id, screen);
}

void controller::layer_destroyed(struct layer *l, uint32_t layer_id) {
   HMI_DEBUG("wm", "compositor::layer %s @ %d", __func__, layer_id);
   this->lprops.erase(layer_id);
   this->layers.erase(layer_id);
}

void controller::add_proxy_to_sid_mapping(struct ivi_wm *p,
                                         uint32_t id) {
   HMI_DEBUG("wm", "Add surface proxy mapping for %p (%u)", p, id);
   this->surface_proxy_to_id[uintptr_t(p)] = id;
   this->sprops[id].id = id;
}

void controller::remove_proxy_to_sid_mapping(struct ivi_wm *p) {
   HMI_DEBUG("wm", "Remove surface proxy mapping for %p", p);
   this->surface_proxy_to_id.erase(uintptr_t(p));
}

void controller::add_proxy_to_lid_mapping(struct ivi_wm *p,
                                         uint32_t id) {
   HMI_DEBUG("wm", "Add layer proxy mapping for %p (%u)", p, id);
   this->layer_proxy_to_id[uintptr_t(p)] = id;
   this->lprops[id].id = id;
}

void controller::remove_proxy_to_lid_mapping(struct ivi_wm *p) {
   HMI_DEBUG("wm", "Remove layer proxy mapping for %p", p);
   this->layer_proxy_to_id.erase(uintptr_t(p));
}

void controller::add_proxy_to_id_mapping(struct wl_output *p, uint32_t id) {
   HMI_DEBUG("wm", "Add screen proxy mapping for %p (%u)", p, id);
   this->screen_proxy_to_id[uintptr_t(p)] = id;
}

void controller::remove_proxy_to_id_mapping(struct wl_output *p) {
   HMI_DEBUG("wm", "Remove screen proxy mapping for %p", p);
   this->screen_proxy_to_id.erase(uintptr_t(p));
}

}  // namespace compositor