src/examples/testMultiShapes.cpp

   1 #include "testCommon.h"
   2
   3 /************************************************************************/
   4 /* Drawing Commands                                                     */
   5 /************************************************************************/
   6
   7 void tvgDrawCmds(tvg::Canvas* canvas)
   8 {
   9     if (!canvas) return;
  10
  11     canvas->reserve(3);                          //reserve 3 shape nodes (optional)
  12
  13     //Prepare Round Rectangle
  14     auto shape1 = tvg::Shape::gen();
  15     shape1->appendRect(0, 0, 400, 400, 50, 50);  //x, y, w, h, rx, ry
  16     shape1->fill(0, 255, 0, 255);                //r, g, b, a
  17     if (canvas->push(move(shape1)) != tvg::Result::Success) return;
  18
  19     //Prepare Circle
  20     auto shape2 = tvg::Shape::gen();
  21     shape2->appendCircle(400, 400, 200, 200);    //cx, cy, radiusW, radiusH
  22     shape2->fill(255, 255, 0, 255);              //r, g, b, a
  23     if (canvas->push(move(shape2)) != tvg::Result::Success) return;
  24
  25     //Prepare Ellipse
  26     auto shape3 = tvg::Shape::gen();
  27     shape3->appendCircle(600, 600, 150, 100);    //cx, cy, radiusW, radiusH
  28     shape3->fill(0, 255, 255, 255);              //r, g, b, a
  29     if (canvas->push(move(shape3)) != tvg::Result::Success) return;
  30 }
  31
  32
  33 /************************************************************************/
  34 /* Sw Engine Test Code                                                  */
  35 /************************************************************************/
  36
  37 static unique_ptr<tvg::SwCanvas> swCanvas;
  38
  39 void tvgSwTest(uint32_t* buffer)
  40 {
  41     //Create a Canvas
  42     swCanvas = tvg::SwCanvas::gen();
  43     swCanvas->target(buffer, WIDTH, WIDTH, HEIGHT, tvg::SwCanvas::ARGB8888);
  44
  45     /* Push the shape into the Canvas drawing list
  46        When this shape is into the canvas list, the shape could update & prepare
  47        internal data asynchronously for coming rendering.
  48        Canvas keeps this shape node unless user call canvas->clear() */
  49     tvgDrawCmds(swCanvas.get());
  50 }
  51
  52 void drawSwView(void* data, Eo* obj)
  53 {
  54     if (swCanvas->draw() == tvg::Result::Success) {
  55         swCanvas->sync();
  56     }
  57 }
  58
  59
  60 /************************************************************************/
  61 /* GL Engine Test Code                                                  */
  62 /************************************************************************/
  63
  64 static unique_ptr<tvg::GlCanvas> glCanvas;
  65
  66 void initGLview(Evas_Object *obj)
  67 {
  68     static constexpr auto BPP = 4;
  69
  70     //Create a Canvas
  71     glCanvas = tvg::GlCanvas::gen();
  72     glCanvas->target(nullptr, WIDTH * BPP, WIDTH, HEIGHT);
  73
  74     /* Push the shape into the Canvas drawing list
  75        When this shape is into the canvas list, the shape could update & prepare
  76        internal data asynchronously for coming rendering.
  77        Canvas keeps this shape node unless user call canvas->clear() */
  78     tvgDrawCmds(glCanvas.get());
  79 }
  80
  81 void drawGLview(Evas_Object *obj)
  82 {
  83     auto gl = elm_glview_gl_api_get(obj);
  84     gl->glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
  85     gl->glClear(GL_COLOR_BUFFER_BIT);
  86
  87     if (glCanvas->draw() == tvg::Result::Success) {
  88         glCanvas->sync();
  89     }
  90 }
  91
  92
  93 /************************************************************************/
  94 /* Main Code                                                            */
  95 /************************************************************************/
  96
  97 int main(int argc, char **argv)
  98 {
  99     tvg::CanvasEngine tvgEngine = tvg::CanvasEngine::Sw;
 100
 101     if (argc > 1) {
 102         if (!strcmp(argv[1], "gl")) tvgEngine = tvg::CanvasEngine::Gl;
 103     }
 104
 105     //Initialize ThorVG Engine
 106     if (tvgEngine == tvg::CanvasEngine::Sw) {
 107         cout << "tvg engine: software" << endl;
 108     } else {
 109         cout << "tvg engine: opengl" << endl;
 110     }
 111
 112     //Threads Count
 113     auto threads = std::thread::hardware_concurrency();
 114
 115     //Initialize ThorVG Engine
 116     if (tvg::Initializer::init(tvgEngine, threads) == tvg::Result::Success) {
 117
 118         elm_init(argc, argv);
 119
 120         if (tvgEngine == tvg::CanvasEngine::Sw) {
 121             createSwView();
 122         } else {
 123             createGlView();
 124         }
 125
 126         elm_run();
 127         elm_shutdown();
 128
 129         //Terminate ThorVG Engine
 130         tvg::Initializer::term(tvgEngine);
 131
 132     } else {
 133         cout << "engine is not supported" << endl;
 134     }
 135     return 0;
 136 }