thorvg/test/testCustomTransform.cpp
Hermet Park f4d1065d52 sw_engine: convert colorspace ARGB -> RGBA in default.
We can use RGBA colorspace rather ARGB for pixel data.
This would be better for many rendering system,
since it's more widely preferred than ARGB including opengl.

Change-Id: Ibbfe6a511d77bf0ef30ce261995467c11164d306
2020-08-15 18:22:43 +09:00

209 lines
5.9 KiB
C++

#include "testCommon.h"
/************************************************************************/
/* Drawing Commands */
/************************************************************************/
tvg::Shape* pShape = nullptr;
void tvgDrawCmds(tvg::Canvas* canvas)
{
if (!canvas) return;
//Shape1
auto shape = tvg::Shape::gen();
/* Acquire shape pointer to access it again.
instead, you should consider not to interrupt this pointer life-cycle. */
pShape = shape.get();
shape->moveTo(0, -114.5);
shape->lineTo(54, -5.5);
shape->lineTo(175, 11.5);
shape->lineTo(88, 95.5);
shape->lineTo(108, 216.5);
shape->lineTo(0, 160.5);
shape->lineTo(-102, 216.5);
shape->lineTo(-87, 96.5);
shape->lineTo(-173, 12.5);
shape->lineTo(-53, -5.5);
shape->close();
shape->fill(0, 0, 255, 255);
shape->stroke(3);
shape->stroke(255, 255, 255, 255);
if (canvas->push(move(shape)) != tvg::Result::Success) return;
}
void tvgUpdateCmds(tvg::Canvas* canvas, float progress)
{
if (!canvas) return;
/* Update shape directly.
You can update only necessary properties of this shape,
while retaining other properties. */
//Transform Matrix
tvg::Matrix m = {1, 0, 0, 0, 1, 0, 0, 0, 1};
//scale x
m.e11 = 1 - (progress * 0.5f);
//scale y
m.e22 = 1 + (progress * 2.0f);
//rotation
constexpr auto PI = 3.141592f;
auto degree = 45.0f;
auto radian = degree / 180.0f * PI;
auto cosVal = cosf(radian);
auto sinVal = sinf(radian);
auto t11 = m.e11 * cosVal + m.e12 * sinVal;
auto t12 = m.e11 * -sinVal + m.e12 * cosVal;
auto t21 = m.e21 * cosVal + m.e22 * sinVal;
auto t22 = m.e21 * -sinVal + m.e22 * cosVal;
auto t13 = m.e31 * cosVal + m.e32 * sinVal;
auto t23 = m.e31 * -sinVal + m.e32 * cosVal;
m.e11 = t11;
m.e12 = t12;
m.e21 = t21;
m.e22 = t22;
m.e13 = t13;
m.e23 = t23;
//translate
m.e13 = progress * 300.0f + 300.0f;
m.e23 = progress * -100.0f + 300.0f;
pShape->transform(m);
//Update shape for drawing (this may work asynchronously)
canvas->update(pShape);
}
/************************************************************************/
/* Sw Engine Test Code */
/************************************************************************/
static unique_ptr<tvg::SwCanvas> swCanvas;
void tvgSwTest(uint32_t* buffer)
{
//Create a Canvas
swCanvas = tvg::SwCanvas::gen();
swCanvas->target(buffer, WIDTH, WIDTH, HEIGHT, tvg::SwCanvas::ARGB8888);
/* Push the shape into the Canvas drawing list
When this shape is into the canvas list, the shape could update & prepare
internal data asynchronously for coming rendering.
Canvas keeps this shape node unless user call canvas->clear() */
tvgDrawCmds(swCanvas.get());
}
void transitSwCb(Elm_Transit_Effect *effect, Elm_Transit* transit, double progress)
{
tvgUpdateCmds(swCanvas.get(), progress);
//Update Efl Canvas
Eo* img = (Eo*) effect;
evas_object_image_data_update_add(img, 0, 0, WIDTH, HEIGHT);
evas_object_image_pixels_dirty_set(img, EINA_TRUE);
}
void drawSwView(void* data, Eo* obj)
{
if (swCanvas->draw() == tvg::Result::Success) {
swCanvas->sync();
}
}
/************************************************************************/
/* GL Engine Test Code */
/************************************************************************/
static unique_ptr<tvg::GlCanvas> glCanvas;
void initGLview(Evas_Object *obj)
{
static constexpr auto BPP = 4;
//Create a Canvas
glCanvas = tvg::GlCanvas::gen();
glCanvas->target(nullptr, WIDTH * BPP, WIDTH, HEIGHT);
/* Push the shape into the Canvas drawing list
When this shape is into the canvas list, the shape could update & prepare
internal data asynchronously for coming rendering.
Canvas keeps this shape node unless user call canvas->clear() */
tvgDrawCmds(glCanvas.get());
}
void drawGLview(Evas_Object *obj)
{
auto gl = elm_glview_gl_api_get(obj);
gl->glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl->glClear(GL_COLOR_BUFFER_BIT);
if (glCanvas->draw() == tvg::Result::Success) {
glCanvas->sync();
}
}
void transitGlCb(Elm_Transit_Effect *effect, Elm_Transit* transit, double progress)
{
tvgUpdateCmds(glCanvas.get(), progress);
}
/************************************************************************/
/* Main Code */
/************************************************************************/
int main(int argc, char **argv)
{
tvg::CanvasEngine tvgEngine = tvg::CanvasEngine::Sw;
if (argc > 1) {
if (!strcmp(argv[1], "gl")) tvgEngine = tvg::CanvasEngine::Gl;
}
//Initialize ThorVG Engine
if (tvgEngine == tvg::CanvasEngine::Sw) {
cout << "tvg engine: software" << endl;
} else {
cout << "tvg engine: opengl" << endl;
}
//Initialize ThorVG Engine
if (tvg::Initializer::init(tvgEngine) == tvg::Result::Success) {
elm_init(argc, argv);
Elm_Transit *transit = elm_transit_add();
if (tvgEngine == tvg::CanvasEngine::Sw) {
auto view = createSwView();
elm_transit_effect_add(transit, transitSwCb, view, nullptr);
} else {
auto view = createGlView();
elm_transit_effect_add(transit, transitGlCb, view, 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);
elm_run();
elm_shutdown();
//Terminate ThorVG Engine
tvg::Initializer::term(tvgEngine);
} else {
cout << "engine is not supported" << endl;
}
return 0;
}