demos: Add Hologram snapshot as Smoke test/demo

1 files changed, 227 insertions, 0 deletions

diff --git a/demos/smoke/ShellAndroid.cpp b/demos/smoke/ShellAndroid.cpp
new file mode 100644
index 00000000..4b813b46
--- /dev/null
+++ b/demos/smoke/ShellAndroid.cpp
@@ -0,0 +1,227 @@
+/*
+ * Copyright (C) 2016 Google, Inc.
+ *
+ * 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 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 <cassert>
+#include <dlfcn.h>
+#include <time.h>
+#include <android/log.h>
+
+#include "Helpers.h"
+#include "Game.h"
+#include "ShellAndroid.h"
+
+namespace {
+
+// copied from ShellXCB.cpp
+class PosixTimer {
+public:
+    PosixTimer()
+    {
+        reset();
+    }
+
+    void reset()
+    {
+        clock_gettime(CLOCK_MONOTONIC, &start_);
+    }
+
+    double get() const
+    {
+        struct timespec now;
+        clock_gettime(CLOCK_MONOTONIC, &now);
+
+        constexpr long one_s_in_ns = 1000 * 1000 * 1000;
+        constexpr double one_s_in_ns_d = static_cast<double>(one_s_in_ns);
+
+        time_t s = now.tv_sec - start_.tv_sec;
+        long ns;
+        if (now.tv_nsec > start_.tv_nsec) {
+            ns = now.tv_nsec - start_.tv_nsec;
+        } else {
+            assert(s > 0);
+            s--;
+            ns = one_s_in_ns - (start_.tv_nsec - now.tv_nsec);
+        }
+
+        return static_cast<double>(s) + static_cast<double>(ns) / one_s_in_ns_d;
+    }
+
+private:
+    struct timespec start_;
+};
+
+} // namespace
+
+ShellAndroid::ShellAndroid(android_app &app, Game &game) : Shell(game), app_(app)
+{
+    instance_extensions_.push_back(VK_KHR_ANDROID_SURFACE_EXTENSION_NAME);
+
+    app_dummy();
+    app_.userData = this;
+    app_.onAppCmd = on_app_cmd;
+    app_.onInputEvent = on_input_event;
+
+    init_vk();
+}
+
+ShellAndroid::~ShellAndroid()
+{
+    cleanup_vk();
+    dlclose(lib_handle_);
+}
+
+void ShellAndroid::log(LogPriority priority, const char *msg)
+{
+    int prio;
+
+    switch (priority) {
+    case LOG_DEBUG:
+        prio = ANDROID_LOG_DEBUG;
+        break;
+    case LOG_INFO:
+        prio = ANDROID_LOG_INFO;
+        break;
+    case LOG_WARN:
+        prio = ANDROID_LOG_WARN;
+        break;
+    case LOG_ERR:
+        prio = ANDROID_LOG_ERROR;
+        break;
+    default:
+        prio = ANDROID_LOG_UNKNOWN;
+        break;
+    }
+
+    __android_log_write(prio, settings_.name.c_str(), msg);
+}
+
+PFN_vkGetInstanceProcAddr ShellAndroid::load_vk()
+{
+    const char filename[] = "libvulkan.so";
+    void *handle = nullptr, *symbol = nullptr;
+
+    handle = dlopen(filename, RTLD_LAZY);
+    if (handle)
+        symbol = dlsym(handle, "vkGetInstanceProcAddr");
+    if (!symbol) {
+        if (handle)
+            dlclose(handle);
+
+        throw std::runtime_error(dlerror());
+    }
+
+    lib_handle_ = handle;
+
+    return reinterpret_cast<PFN_vkGetInstanceProcAddr>(symbol);
+}
+
+VkSurfaceKHR ShellAndroid::create_surface(VkInstance instance)
+{
+    VkAndroidSurfaceCreateInfoKHR surface_info = {};
+    surface_info.sType = VK_STRUCTURE_TYPE_ANDROID_SURFACE_CREATE_INFO_KHR;
+    surface_info.window = app_.window;
+
+    VkSurfaceKHR surface;
+    vk::assert_success(vk::CreateAndroidSurfaceKHR(instance, &surface_info, nullptr, &surface));
+
+    return surface;
+}
+
+void ShellAndroid::on_app_cmd(int32_t cmd)
+{
+    switch (cmd) {
+    case APP_CMD_INIT_WINDOW:
+        create_context();
+        resize_swapchain(0, 0);
+        break;
+    case APP_CMD_TERM_WINDOW:
+        destroy_context();
+        break;
+    case APP_CMD_WINDOW_RESIZED:
+        resize_swapchain(0, 0);
+        break;
+    case APP_CMD_STOP:
+        ANativeActivity_finish(app_.activity);
+        break;
+    default:
+        break;
+    }
+}
+
+int32_t ShellAndroid::on_input_event(const AInputEvent *event)
+{
+    if (AInputEvent_getType(event) != AINPUT_EVENT_TYPE_MOTION)
+        return false;
+
+    bool handled = false;
+
+    switch (AMotionEvent_getAction(event) & AMOTION_EVENT_ACTION_MASK) {
+    case AMOTION_EVENT_ACTION_UP:
+        game_.on_key(Game::KEY_SPACE);
+        handled = true;
+        break;
+    default:
+        break;
+    }
+
+    return handled;
+}
+
+void ShellAndroid::quit()
+{
+    ANativeActivity_finish(app_.activity);
+}
+
+void ShellAndroid::run()
+{
+    PosixTimer timer;
+
+    double current_time = timer.get();
+
+    while (true) {
+        struct android_poll_source *source;
+        while (true) {
+            int timeout = (settings_.animate && app_.window) ? 0 : -1;
+            if (ALooper_pollAll(timeout, nullptr, nullptr,
+                    reinterpret_cast<void **>(&source)) < 0)
+                break;
+
+            if (source)
+                source->process(&app_, source);
+        }
+
+        if (app_.destroyRequested)
+            break;
+
+        if (!app_.window)
+            continue;
+
+        acquire_back_buffer();
+
+        double t = timer.get();
+        add_game_time(static_cast<float>(t - current_time));
+
+        present_back_buffer();
+
+        current_time = t;
+    }
+}