src/examples/testMultiCanvas.cpp

   1 #include <iostream>
   2 #include <thread>
   3 #include <vector>
   4 #include <Elementary.h>
   5 #include <thorvg.h>
   6
   7 using namespace std;
   8
   9 /************************************************************************/
  10 /* Drawing Commands                                                     */
  11 /************************************************************************/
  12 #define WIDTH 800
  13 #define HEIGHT 800
  14 #define NUM_PER_LINE 4
  15 #define SIZE 200
  16
  17 static size_t count = 0;
  18 static std::vector<unique_ptr<tvg::Canvas>> canvases;
  19
  20
  21 void win_del(void *data, Evas_Object *o, void* ev)
  22 {
  23    elm_exit();
  24 }
  25
  26
  27 void tvgDrawCmds(tvg::Canvas* canvas, const char* path, const char* name)
  28 {
  29     auto picture = tvg::Picture::gen();
  30
  31     char buf[PATH_MAX];
  32     sprintf(buf,"%s/%s", path, name);
  33
  34     if (picture->load(buf) != tvg::Result::Success) return;
  35
  36     float x, y, w, h;
  37     picture->viewbox(&x, &y, &w, &h);
  38
  39     float rate = (SIZE/(w > h ? w : h));
  40     picture->scale(rate);
  41
  42     x *= rate;
  43     y *= rate;
  44     w *= rate;
  45     h *= rate;
  46
  47     //Center Align ?
  48     if (w > h) {
  49         y -= (SIZE - h) * 0.5f;
  50     } else {
  51         x -= (SIZE - w) * 0.5f;
  52     }
  53     picture->translate(-x, -y);
  54
  55     if (canvas->push(move(picture)) != tvg::Result::Success) return;
  56
  57     cout << "SVG: " << buf << endl;
  58
  59     count++;
  60 }
  61
  62
  63 /************************************************************************/
  64 /* Sw Engine Test Code                                                  */
  65 /************************************************************************/
  66
  67 void sw_del(void* data, Evas* evas, Eo* obj, void* ev)
  68 {
  69     auto buffer = (uint32_t*) data;
  70     free(buffer);
  71 }
  72
  73
  74 void drawSwView(void* data, Eo* obj)
  75 {
  76     auto i = reinterpret_cast<size_t>(data);
  77     auto& canvas = canvases[i];
  78
  79     if (canvas->draw() == tvg::Result::Success) {
  80         canvas->sync();
  81     }
  82 }
  83
  84
  85 void tvgSwTest(const char* name, const char* path, void* data)
  86 {
  87     Eo* win = (Eo*) data;
  88
  89     uint32_t* buffer = (uint32_t*) calloc(sizeof(uint32_t), SIZE * SIZE);
  90
  91     Eo* view = evas_object_image_filled_add(evas_object_evas_get(win));
  92     evas_object_image_size_set(view, SIZE, SIZE);
  93     evas_object_image_data_set(view, buffer);
  94     evas_object_image_pixels_dirty_set(view, EINA_TRUE);
  95     evas_object_image_data_update_add(view, 0, 0, SIZE, SIZE);
  96     evas_object_image_alpha_set(view, EINA_TRUE);
  97     evas_object_image_pixels_get_callback_set(view, drawSwView, reinterpret_cast<void*>(count));
  98     evas_object_event_callback_add(view, EVAS_CALLBACK_DEL, sw_del, buffer);
  99     evas_object_resize(view, SIZE, SIZE);
 100     evas_object_move(view, (count % NUM_PER_LINE) * SIZE, SIZE * (count / NUM_PER_LINE));
 101     evas_object_show(view);
 102
 103     //Create a Canvas
 104     auto canvas = tvg::SwCanvas::gen();
 105     canvas->target(buffer, SIZE, SIZE, SIZE, tvg::SwCanvas::ARGB8888);
 106
 107     tvgDrawCmds(canvas.get(), path, name);
 108
 109     canvases.push_back(move(canvas));
 110 }
 111
 112
 113 /************************************************************************/
 114 /* GL Engine Test Code                                                  */
 115 /************************************************************************/
 116
 117 struct ObjData
 118 {
 119     char* path;
 120     char* name;
 121     int idx;
 122 };
 123
 124 void gl_del(void* data, Evas* evas, Eo* obj, void* ev)
 125 {
 126     auto objData = (ObjData*) data;
 127     delete(objData);
 128 }
 129
 130 void initGLview(Evas_Object *obj)
 131 {
 132     auto objData = reinterpret_cast<ObjData*>(evas_object_data_get(obj, "objdata"));
 133     objData->idx = count;
 134
 135     static constexpr auto BPP = 4;
 136
 137     //Create a Canvas
 138     auto canvas = tvg::GlCanvas::gen();
 139     canvas->target(nullptr, SIZE * BPP, SIZE, SIZE);
 140
 141     /* Push the shape into the Canvas drawing list
 142        When this shape is into the canvas list, the shape could update & prepare
 143        internal data asynchronously for coming rendering.
 144        Canvas keeps this shape node unless user call canvas->clear() */
 145     tvgDrawCmds(canvas.get(), objData->path, objData->name);
 146
 147     canvases.push_back(move(canvas));
 148 }
 149
 150
 151 void drawGLview(Evas_Object *obj)
 152 {
 153     auto gl = elm_glview_gl_api_get(obj);
 154     gl->glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
 155     gl->glClear(GL_COLOR_BUFFER_BIT);
 156
 157     auto objData = reinterpret_cast<ObjData*>(evas_object_data_get(obj, "objdata"));
 158     auto& canvas = canvases[objData->idx];
 159
 160     if (canvas->draw() == tvg::Result::Success) {
 161         canvas->sync();
 162     }
 163 }
 164
 165
 166 void tvgGlTest(const char* name, const char* path, void* data)
 167 {
 168     auto objData = new ObjData;
 169     objData->name = strdup(name);
 170     objData->path = strdup(path);
 171
 172     Eo* win = (Eo*) data;
 173
 174     Eo* view = elm_glview_add(win);
 175     elm_glview_mode_set(view, ELM_GLVIEW_ALPHA);
 176     elm_glview_resize_policy_set(view, ELM_GLVIEW_RESIZE_POLICY_RECREATE);
 177     elm_glview_render_policy_set(view, ELM_GLVIEW_RENDER_POLICY_ON_DEMAND);
 178     elm_glview_init_func_set(view, initGLview);
 179     elm_glview_render_func_set(view, drawGLview);
 180     evas_object_data_set(view, "objdata", reinterpret_cast<void*>(objData));
 181     evas_object_event_callback_add(view, EVAS_CALLBACK_DEL, gl_del, objData);
 182     evas_object_resize(view, SIZE, SIZE);
 183     evas_object_move(view, (count % NUM_PER_LINE) * SIZE, SIZE * (count / NUM_PER_LINE));
 184     evas_object_show(view);
 185 }
 186
 187
 188 /************************************************************************/
 189 /* Main Code                                                            */
 190 /************************************************************************/
 191
 192 int main(int argc, char **argv)
 193 {
 194     tvg::CanvasEngine tvgEngine = tvg::CanvasEngine::Sw;
 195
 196     if (argc > 1) {
 197         if (!strcmp(argv[1], "gl")) tvgEngine = tvg::CanvasEngine::Gl;
 198     }
 199
 200     //Initialize ThorVG Engine
 201     if (tvgEngine == tvg::CanvasEngine::Sw) {
 202         cout << "tvg engine: software" << endl;
 203     } else {
 204         cout << "tvg engine: opengl" << endl;
 205     }
 206
 207     //Threads Count
 208     auto threads = std::thread::hardware_concurrency();
 209
 210     //Initialize ThorVG Engine
 211     if (tvg::Initializer::init(tvgEngine, threads) == tvg::Result::Success) {
 212
 213         elm_init(argc, argv);
 214
 215         Eo* win = elm_win_util_standard_add(NULL, "ThorVG Test");
 216         evas_object_smart_callback_add(win, "delete,request", win_del, 0);
 217
 218         if (tvgEngine == tvg::CanvasEngine::Sw) {
 219             eina_file_dir_list(EXAMPLE_DIR, EINA_TRUE, tvgSwTest, win);
 220         } else {
 221             eina_file_dir_list(EXAMPLE_DIR, EINA_TRUE, tvgGlTest, win);
 222         }
 223
 224         evas_object_geometry_set(win, 0, 0, WIDTH, HEIGHT);
 225         evas_object_show(win);
 226
 227         elm_run();
 228         elm_shutdown();
 229
 230         //Terminate ThorVG Engine
 231         tvg::Initializer::term(tvg::CanvasEngine::Sw);
 232
 233     } else {
 234         cout << "engine is not supported" << endl;
 235     }
 236     return 0;
 237 }