example/user_interaction_animation_speed.cpp

   1 #include <thread>
   2 #include <dirent.h>
   3 #include <algorithm>
   4 #include <Elementary.h>
   5 #include <rive_tizen.hpp>
   6
   7 #include "animation/linear_animation_instance.hpp"
   8 #include "artboard.hpp"
   9 #include "file.hpp"
  10 #include "tvg_renderer.hpp"
  11
  12 using namespace std;
  13
  14 #define WIDTH 1000
  15 #define HEIGHT 700
  16 #define LIST_HEIGHT 200
  17
  18 static unique_ptr<tvg::SwCanvas> canvas = nullptr;
  19 static rive::File* currentFile = nullptr;
  20 static rive::Artboard* artboard = nullptr;
  21 static rive::LinearAnimationInstance* animationInstance[2];
  22 static Ecore_Animator *animator = nullptr;
  23 static Eo* view = nullptr;
  24 static double lastTime;
  25 static double animationSpeed = 1.0;
  26
  27 static void deleteWindow(void *data, Evas_Object *obj, void *ev)
  28 {
  29     elm_exit();
  30 }
  31
  32 static void drawToCanvas(void* data, Eo* obj)
  33 {
  34     if (canvas->draw() == tvg::Result::Success) canvas->sync();
  35 }
  36
  37 static void loadRiveFile(const char* filename)
  38 {
  39     lastTime = ecore_time_get();    //Check point
  40
  41     // Load Rive File
  42     FILE* fp = fopen(filename, "r");
  43
  44     fseek(fp, 0, SEEK_END);
  45     size_t length = ftell(fp);
  46     fseek(fp, 0, SEEK_SET);
  47
  48     uint8_t* bytes = new uint8_t[length];
  49     if (fread(bytes, 1, length, fp) != length)
  50     {
  51        delete[] bytes;
  52        fprintf(stderr, "failed to read all of %s\n", filename);
  53        return;
  54     }
  55
  56     auto reader = rive::BinaryReader(bytes, length);
  57     rive::File* file = nullptr;
  58     auto result = rive::File::import(reader, &file);
  59     if (result != rive::ImportResult::success)
  60     {
  61        delete[] bytes;
  62        fprintf(stderr, "failed to import %s\n", filename);
  63        return;
  64     }
  65
  66     artboard = file->artboard();
  67     artboard->advance(0.0f);
  68
  69     auto animation = artboard->animation(0);
  70     if (animation) animationInstance[0] = new rive::LinearAnimationInstance(animation);
  71
  72     animation = artboard->animation(1);
  73     if (animation) animationInstance[1] = new rive::LinearAnimationInstance(animation);
  74
  75     delete currentFile;
  76     currentFile = file;
  77
  78     delete[] bytes;
  79 }
  80
  81 Eina_Bool animationLoop(void *data)
  82 {
  83     canvas->clear();
  84
  85     double currentTime = ecore_time_get();
  86     float elapsed = currentTime - lastTime;
  87     lastTime = currentTime;
  88
  89     // Apply Animation Speed
  90     elapsed *= animationSpeed;
  91
  92     if (!artboard) return ECORE_CALLBACK_RENEW;
  93
  94     for (int i = 0; i < 2; i ++)
  95     {
  96        if (animationInstance[i])
  97        {
  98          animationInstance[i]->advance(elapsed);
  99          animationInstance[i]->apply(artboard);
 100        }
 101     }
 102
 103     artboard->advance(elapsed);
 104
 105     rive::TvgRenderer renderer(canvas.get());
 106     renderer.save();
 107     renderer.align(rive::Fit::contain,
 108                    rive::Alignment::center,
 109                    rive::AABB(0, 0, WIDTH, HEIGHT),
 110                    artboard->bounds());
 111     artboard->draw(&renderer);
 112     renderer.restore();
 113
 114     evas_object_image_pixels_dirty_set(view, EINA_TRUE);
 115     evas_object_image_data_update_add(view, 0, 0, WIDTH, HEIGHT);
 116
 117     return ECORE_CALLBACK_RENEW;
 118 }
 119
 120 static void runExample(uint32_t* buffer)
 121 {
 122     std::string path = RIVE_FILE_DIR;
 123     path.append("truck063.riv");
 124     loadRiveFile(path.c_str());
 125
 126     //Create a Canvas
 127     canvas = tvg::SwCanvas::gen();
 128     canvas->target(buffer, WIDTH, WIDTH, HEIGHT, tvg::SwCanvas::ARGB8888);
 129     animator = ecore_animator_add(animationLoop, nullptr);
 130 }
 131
 132 static void cleanExample()
 133 {
 134     for (int i = 0; i < 2; i ++)
 135     {
 136        delete animationInstance[i];
 137     }
 138 }
 139
 140 void speedChangedCb(void *data, Evas_Object *obj, void *event_info EINA_UNUSED)
 141 {
 142    double val = elm_slider_value_get(obj);
 143    animationSpeed = val;
 144 }
 145
 146 static void setupScreen(uint32_t* buffer)
 147 {
 148     Eo* win = elm_win_util_standard_add(nullptr, "Rive Viewer");
 149     evas_object_smart_callback_add(win, "delete,request", deleteWindow, 0);
 150
 151     Eo* box = elm_box_add(win);
 152     evas_object_size_hint_weight_set(box, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
 153     elm_win_resize_object_add(win, box);
 154     evas_object_show(box);
 155
 156     view = evas_object_image_filled_add(evas_object_evas_get(box));
 157     evas_object_image_size_set(view, WIDTH, HEIGHT);
 158     evas_object_image_data_set(view, buffer);
 159     evas_object_image_pixels_get_callback_set(view, drawToCanvas, nullptr);
 160     evas_object_image_pixels_dirty_set(view, EINA_TRUE);
 161     evas_object_image_data_update_add(view, 0, 0, WIDTH, HEIGHT);
 162     evas_object_size_hint_weight_set(view, EVAS_HINT_EXPAND, 0.0);
 163     evas_object_size_hint_min_set(view, WIDTH, HEIGHT);
 164     evas_object_show(view);
 165     elm_box_pack_end(box, view);
 166
 167     Eo* speedSlider = elm_slider_add(box);
 168     elm_slider_unit_format_set(speedSlider, "%0.1f x");
 169     elm_slider_indicator_format_set(speedSlider, "%0.1f");
 170     elm_slider_span_size_set(speedSlider, 350);
 171     elm_slider_min_max_set(speedSlider, 0.0, 2.0);
 172     elm_object_text_set(speedSlider, "Animation Speed : ");
 173     elm_slider_step_set(speedSlider, 0.1);
 174     evas_object_size_hint_align_set(speedSlider, EVAS_HINT_FILL, 0.5);
 175     evas_object_size_hint_weight_set(speedSlider, EVAS_HINT_EXPAND, 0.0);
 176     elm_slider_value_set(speedSlider, animationSpeed);
 177     evas_object_smart_callback_add(speedSlider, "changed", speedChangedCb, nullptr);
 178     evas_object_show(speedSlider);
 179     elm_box_pack_end(box, speedSlider);
 180
 181     evas_object_resize(win, WIDTH, HEIGHT + LIST_HEIGHT);
 182     evas_object_show(win);
 183 }
 184
 185 int main(int argc, char **argv)
 186 {
 187     static uint32_t buffer[WIDTH * HEIGHT];
 188
 189     tvg::Initializer::init(tvg::CanvasEngine::Sw, thread::hardware_concurrency());
 190
 191     elm_init(argc, argv);
 192
 193     setupScreen(buffer);
 194
 195     runExample(buffer);
 196
 197     elm_run();
 198
 199     cleanExample();
 200
 201     elm_shutdown();
 202
 203     tvg::Initializer::term(tvg::CanvasEngine::Sw);
 204
 205     return 0;
 206 }