add redraw_fixer, separate controller tool

* Use the existing wayland.hpp/cpp implementation
* Listen for visibility and destination_rectangle events
* Apply changing values to opacity to "fix" redraw

Signed-off-by: Marcus Fritzsch <marcus_fritzsch@mentor.com>

1 files changed, 126 insertions, 0 deletions

diff --git a/src/redraw_fixer.cpp b/src/redraw_fixer.cpp
new file mode 100644
index 0000000..e6a84e3
--- /dev/null
+++ b/src/redraw_fixer.cpp
@@ -0,0 +1,126 @@
+//
+// Created by mfritzsc on 9/11/17.
+//
+
+#include "wayland.hpp"
+
+#include <algorithm>
+#include <chrono>
+#include <thread>
+
+using namespace std::chrono_literals;
+
+// pretend we are a WM ...
+namespace wm {
+
+struct App {
+   controller_hooks chooks;
+   std::unique_ptr<wl::display> display;
+   std::unique_ptr<genivi::controller> controller;
+   std::vector<std::unique_ptr<wl::output>> outputs;
+
+   App();
+   void commit();
+   void surface_created(uint32_t surface_id);
+   void surface_removed(uint32_t surface_id);
+   void surface_visibility(uint32_t surface_id, uint32_t v);
+   void surface_destination_rectangle(uint32_t surface_id, uint32_t x,
+                                      uint32_t y, uint32_t w, uint32_t h);
+   void try_fix(uint32_t surface_id);
+};
+
+void controller_hooks::surface_created(uint32_t surface_id) {
+   this->app->surface_created(surface_id);
+}
+
+void controller_hooks::surface_removed(uint32_t surface_id) {
+   this->app->surface_removed(surface_id);
+}
+
+void controller_hooks::surface_visibility(uint32_t surface_id, uint32_t v) {
+   this->app->surface_visibility(surface_id, v);
+}
+
+void controller_hooks::surface_destination_rectangle(uint32_t surface_id,
+                                                     uint32_t x, uint32_t y,
+                                                     uint32_t w, uint32_t h) {
+   this->app->surface_destination_rectangle(surface_id, x, y, w, h);
+}
+
+App::App() : chooks{this}, display{new wl::display}, controller{} {
+   // The same init, the WM does, at least we can reuse the wayland stuff
+   if (this->display->ok()) {
+      this->display->add_global_handler("wl_output", [this](wl_registry *r,
+                                                            uint32_t name,
+                                                            uint32_t v) {
+         this->outputs.emplace_back(std::make_unique<wl::output>(r, name, v));
+      });
+
+      this->display->add_global_handler(
+         "ivi_controller", [this](wl_registry *r, uint32_t name, uint32_t v) {
+            this->controller =
+               std::make_unique<struct genivi::controller>(r, name, v);
+
+            // Init controller hooks
+            this->controller->chooks = &this->chooks;
+
+            // XXX: This protocol needs the output, so lets just add our
+            // mapping
+            // here...
+            this->controller->add_proxy_to_id_mapping(
+               this->outputs.back()->proxy.get(),
+               wl_proxy_get_id(reinterpret_cast<struct wl_proxy *>(
+                  this->outputs.back()->proxy.get())));
+         });
+
+      for (int i : {1, 2, 3})
+         this->display->roundtrip();
+   }
+}
+
+void App::commit() {
+   this->controller->commit_changes();
+   this->display->dispatch();  // read: flush()++
+}
+
+void App::surface_created(uint32_t surface_id) { }
+
+void App::surface_removed(uint32_t surface_id) { }
+
+void App::surface_visibility(uint32_t surface_id, uint32_t v) {
+   fprintf(stderr, "surface %u visibility %u\n", surface_id, v);
+
+   if (v == 1) {
+     this->try_fix(surface_id);
+   }
+}
+
+void App::surface_destination_rectangle(uint32_t surface_id, uint32_t x,
+                                        uint32_t y, uint32_t w, uint32_t h) {
+   fprintf(stderr, "surface %u dst %u %u %u %u\n", surface_id, x, y, w, h);
+
+   if (w != 1 && h != 1) {
+      this->try_fix(surface_id);
+   }
+}
+
+void App::try_fix(uint32_t surface_id) {
+   this->controller->surfaces[surface_id]->set_opacity(255);
+   this->commit();
+   std::this_thread::sleep_for(200ms);
+   this->controller->surfaces[surface_id]->set_opacity(256);
+   this->commit();
+}
+
+}  // namespace wm
+
+int main(int argc, char **argv) {
+   wm::App app;
+   if (!app.display->ok()) {
+      fputs("Could not init wayland display\n", stderr);
+      return 1;
+   }
+   while (app.display->dispatch() != -1)
+      ;
+   return 0;
+}