app/binding: implement crude syndraw/enddraw/flushdraw sequence

[staging/windowmanager.git] / src / app.hpp

diff --git a/src/app.hpp b/src/app.hpp
index 37122ef..e661794 100644 (file)
--- a/src/app.hpp
+++ b/src/app.hpp
@@ -18,10 +18,12 @@
 #define TMCAGLWM_APP_HPP
 
 #include <json-c/json.h>
+
+#include <atomic>
 #include <memory>
 #include <unordered_map>
 #include <unordered_set>
-#include <deque>
+#include <experimental/optional>
 
 #include "afb_binding_api.hpp"
 #include "config.hpp"
@@ -41,6 +43,8 @@ struct controller;
 
 namespace wm {
 
+using std::experimental::optional;
+
 struct id_allocator {
    constexpr static const unsigned id_shift = 22;
    constexpr static const unsigned id_mask = (1 << id_shift) - 1;
@@ -98,17 +102,6 @@ struct id_allocator {
    }
 };
 
-struct LayoutState {
-   enum States {
-      LayoutSingle,
-      LayoutSplit,
-   };
-
-   enum States state;
-   int main;
-   int sub;
-};
-
 struct App {
    struct binding_api api;
    struct controller_hooks chooks;
@@ -121,19 +114,31 @@ struct App {
 
    struct config config;
 
-   layouts_type layouts;
+   // track current layouts separately
+   std::map<int, struct LayoutState> layouts;
    layer_map layers;
 
    // ID allocation and proxy methods for lookup
    struct id_allocator id_alloc;
-   optional<unsigned> lookup_id(char const *name) {
+   optional<int> lookup_id(char const *name) {
       return this->id_alloc.lookup(std::string(name));
    }
-   optional<std::string> lookup_name(unsigned id) {
+   optional<std::string> lookup_name(int id) {
       return this->id_alloc.lookup(id);
    }
 
-   struct LayoutState state;
+   // Set by AFB API when wayland events need to be dispatched
+   std::atomic<bool> pending_events;
+   void set_pending_events() {
+      this->pending_events.store(true, std::memory_order_release);
+   }
+   bool pop_pending_events() {
+      bool x{true};
+      return this->pending_events.compare_exchange_strong(
+         x, false, std::memory_order_consume);
+   }
+
+   std::vector<int> pending_end_draw;
 
    explicit App(wl::display *d);
    ~App();
@@ -147,8 +152,10 @@ struct App {
    int init_layers();
 
    int dispatch_events();
+   int dispatch_pending_events();
 
-   void surface_init_layout(uint32_t surface_id);
+   void surface_set_layout_full(uint32_t surface_id);
+   void surface_set_layout_split(uint32_t surface_id, uint32_t sub_surface_id);
 
    // Allocate a surface ID for this role
    result<int> request_surface(char const *drawing_name);
@@ -157,6 +164,8 @@ struct App {
    char const *activate_surface(char const *drawing_name);
    char const *deactivate_surface(char const *drawing_name);
 
+   char const *enddraw(char const *drawing_name);
+
    // Events from the compositor we are interested in
    void surface_created(uint32_t surface_id);
    void surface_removed(uint32_t surface_id);
@@ -170,10 +179,10 @@ struct App {
    void emit_invisible(char const *label);
    void emit_visible(char const *label);
 
-   void activate(unsigned id);
-   void deactivate(unsigned id);
+   void activate(int id);
+   void deactivate(int id);
 
-   bool can_split(unsigned new_id);
+   bool can_split(struct LayoutState const &state, int new_id);
 };
 
 }  // namespace wm