test: added testUpdate

this shows a moving shape:

how to update canvas every frames.

Change-Id: I373e39757f4511d4e676f36d76e468d03b185a0c

.gitignore

@@ -8,3 +8,4 @@ testBoundary
 testPath
 testPathCopy
 testBlending
+testUpdate

inc/tizenvg.h

@@ -179,6 +179,7 @@ class TIZENVG_EXPORT SwCanvas final : public Canvas
 public:
     ~SwCanvas();
 
+    int clear() noexcept override;
     int target(uint32_t* buffer, size_t stride, size_t w, size_t h) noexcept;
     int sync() noexcept override;
     static std::unique_ptr<SwCanvas> gen() noexcept;

src/lib/tvgSwCanvas.cpp

@@ -45,6 +45,17 @@ SwCanvas::~SwCanvas()
 }
 
 
+int SwCanvas::clear() noexcept
+{
+    auto renderer = dynamic_cast<SwRenderer*>(engine());
+    assert(renderer);
+
+    if (!renderer->clear()) return -1;
+
+    return Canvas::clear();
+}
+
+
 int SwCanvas::target(uint32_t* buffer, size_t stride, size_t w, size_t h) noexcept
 {
     auto renderer = dynamic_cast<SwRenderer*>(engine());

test/makefile

@@ -6,3 +6,4 @@ all:
 	gcc -o testPath testPath.cpp -g -lstdc++ `pkg-config --cflags --libs elementary tizenvg`
 	gcc -o testPathCopy testPathCopy.cpp -g -lstdc++ `pkg-config --cflags --libs elementary tizenvg`
 	gcc -o testBlending testBlending.cpp -g -lstdc++ `pkg-config --cflags --libs elementary tizenvg`
+	gcc -o testUpdate testUpdate.cpp -g -lstdc++ `pkg-config --cflags --libs elementary tizenvg`

test/testUpdate.cpp

@@ -1,4 +1,5 @@
 #include <tizenvg.h>
+#include <Elementary.h>
 
 using namespace std;
 
@@ -6,49 +7,83 @@ using namespace std;
 #define HEIGHT 800
 
 static uint32_t buffer[WIDTH * HEIGHT];
+unique_ptr<tvg::SwCanvas> canvas = nullptr;
+
+void tvgtest()
+{
+   //Create a Canvas
+   canvas = tvg::SwCanvas::gen();
+   canvas->target(buffer, WIDTH, WIDTH, HEIGHT);
+
+   //Shape
+   auto shape = tvg::ShapeNode::gen();
+   shape->appendRect(-100, -100, 200, 200, 0);
+   shape->fill(255, 255, 255, 255);
+   canvas->push(move(shape));
+
+   //Draw first frame
+   canvas->draw();
+   canvas->sync();
+}
+
+void transit_cb(Elm_Transit_Effect *effect, Elm_Transit* transit, double progress)
+{
+   //Explicitly clear all retained paint nodes.
+   canvas->clear();
+
+   //Shape
+   auto shape = tvg::ShapeNode::gen();
+   shape->appendRect(-100 + (800 * progress), -100 + (800 * progress), 200, 200, (100 * progress));
+   shape->fill(rand()%255, rand()%255, rand()%255, 255);
+   canvas->push(move(shape));
+
+   //Draw Next frames
+   canvas->draw();
+   canvas->sync();
+
+   //Update Efl Canvas
+   Eo* img = (Eo*) effect;
+   evas_object_image_data_update_add(img, 0, 0, WIDTH, HEIGHT);
+}
+
+void
+win_del(void *data, Evas_Object *o, void *ev)
+{
+   elm_exit();
+}
 
 int main(int argc, char **argv)
 {
    //Initialize TizenVG Engine
    tvg::Engine::init();
 
-    //Create a Canvas
+   tvgtest();
-    auto canvas = tvg::SwCanvas::gen(buffer, WIDTH, HEIGHT);
 
-    //Create a Scene
+   //Show the result using EFL...
-    auto scene = tvg::SceneNode::gen();
+   elm_init(argc, argv);
 
-    //Shape1
+   Eo* win = elm_win_util_standard_add(NULL, "TizenVG Test");
-    auto shape1 = tvg::ShapeNode::gen();
+   evas_object_smart_callback_add(win, "delete,request", win_del, 0);
 
-    /* Acquire shape1 pointer to access directly later.
+   Eo* img = evas_object_image_filled_add(evas_object_evas_get(win));
-       instead, you should consider not to interrupt this pointer life-cycle. */
+   evas_object_image_size_set(img, WIDTH, HEIGHT);
-    auto pshape1 = shape1->get();
+   evas_object_image_data_set(img, buffer);
+   evas_object_size_hint_weight_set(img, EVAS_HINT_EXPAND, EVAS_HINT_EXPAND);
+   evas_object_show(img);
 
-    shape1->rect(0, 0, 400, 400, 0.1);
+   elm_win_resize_object_add(win, img);
-    shape1->fill(255, 0, 0, 255);
+   evas_object_geometry_set(win, 0, 0, WIDTH, HEIGHT);
-    shape1->rotate(0, 0, 45);   //axis x, y, z
+   evas_object_show(win);
 
-    scene->push(move(shape1));
+   Elm_Transit *transit = elm_transit_add();
-    canvas->push(move(scene));
+   elm_transit_effect_add(transit, transit_cb, img, nullptr);
+   elm_transit_duration_set(transit, 2);
+   elm_transit_repeat_times_set(transit, -1);
+   elm_transit_auto_reverse_set(transit, EINA_TRUE);
+   elm_transit_go(transit);
 
-    //Draw first frame
+   elm_run();
-    canvas->draw();
+   elm_shutdown();
-    canvas->sync();
-
-    /* Clear the previous shape path and Prepare a new shape path.
-       You can call clear() to explicitly clear path data. */
-    pshape1->rect(0, 0, 300, 300, 0.1);
-
-    //Prepapre for drawing (this may work asynchronously)
-    pshape1->update();
-
-    //Draw second frame
-    canvas->draw();
-    canvas->sync();
-
-    //Explicitly clear all retained paint nodes.
-    canvas->clear();
 
    //Terminate TizenVG Engine
    tvg::Engine::term();