virtual void updateGL( osg::State* state ) const
{
// Some test drawings...
nvgBeginPath( _vg );
nvgRect( _vg, 300, 300, 120, 30 );
nvgFillColor( _vg, nvgRGBA(255, 192, 0, 255) );
nvgFill( _vg );
nvgClosePath( _vg );
nvgBeginPath( _vg );
nvgCircle( _vg, 400, 500, 50 );
nvgFillColor( _vg, nvgRGBA(0, 192, 255, 100) );
nvgFill( _vg );
nvgClosePath( _vg );
if ( _loadedImages.size()>0 )
{
NVGpaint imgPaint = nvgImagePattern( _vg, 600, 150, 300, 400, 0.0f,
_loadedImages[0], 1.0f );
nvgBeginPath( _vg );
nvgRoundedRect( _vg, 600, 150, 300, 400, 5 );
nvgFillPaint( _vg, imgPaint );
nvgFill( _vg );
nvgClosePath( _vg );
}
}
void Application::Impl_::paintEvent(NVGcontext* context){
int winWidth, winHeight;
glfwGetWindowSize(window_.get(), &winWidth, &winHeight);
int fWidth, fHeight;
glfwGetFramebufferSize(window_.get(), &fWidth, &fHeight);
float pxRatio = (float)fWidth / (float)winWidth;
nvgBeginFrame(context, winWidth, winHeight, pxRatio);
Rect textRect(0.f,10.f,winWidth,20.f);
Rect boardMaxRect(0.f,textRect.height + textRect.y,winWidth,winHeight - textRect.height);
float boardSizeMin = std::min(boardMaxRect.width,boardMaxRect.height);
Rect boardRect(20.f, 20.f + textRect.height,boardSizeMin-40.f, boardSizeMin-40.f);
if (boardMaxRect.height > boardMaxRect.width){
boardRect.move(0,(boardMaxRect.height - boardMaxRect.width)/2.f);
}else{
boardRect.move((boardMaxRect.width - boardMaxRect.height)/2.f,0);
}
// draw the text rect
nvgBeginPath(context);
nvgFillColor(context, nvgRGBA(0,0,0,50));
nvgRect(context,textRect);
nvgFill(context);
nvgClosePath(context);
// draw the board
boardView_->paint(context,boardRect);
if (isEnd_){
// change the color of the board
nvgBeginPath(context);
nvgFillColor(context, nvgRGBA(0,0,0,30));
nvgRect(context,boardMaxRect);
nvgFill(context);
nvgClosePath(context);
// & display the game over
std::string text("GAME OVER");
nvgBeginPath(context);
float x= 0;
float y= 0;
textRect.center(x,y);
nvgFontSize(context, 20);
nvgFontFace(context, "sans");
nvgTextAlign(context, NVG_ALIGN_MIDDLE|NVG_ALIGN_CENTER);
nvgFill(context);
nvgFillColor(context, nvgRGBA(0,0,0,255));
nvgText(context,x+1,y+1,text.c_str(),NULL);
nvgFillColor(context, nvgRGBA(200,20,20,255));
nvgText(context,x,y,text.c_str(),NULL);
}
nvgEndFrame(context);
}
void vsDropShadow(NVGcontext *ctx, float x, float y, float w, float h,
float r, float feather, float alpha) {
nvgBeginPath(ctx);
y += feather;
h -= feather;
nvgMoveTo(ctx, x - feather, y - feather);
nvgLineTo(ctx, x, y - feather);
nvgLineTo(ctx, x, y + h - feather);
nvgArcTo(ctx, x, y + h, x + r, y + h, r);
nvgArcTo(ctx, x + w, y + h, x + w, y + h - r, r);
nvgLineTo(ctx, x + w, y - feather);
nvgLineTo(ctx, x + w + feather, y - feather);
nvgLineTo(ctx, x + w + feather, y + h + feather);
nvgLineTo(ctx, x - feather, y + h + feather);
nvgClosePath(ctx);
nvgFillPaint(ctx, nvgBoxGradient(ctx,
x - feather * 0.5f, y - feather * 0.5f,
w + feather, h + feather,
r + feather * 0.5f,
feather,
nvgRGBAf(0, 0, 0, alpha * alpha),
nvgRGBAf(0, 0, 0, 0)));
nvgFill(ctx);
}
void renderFrame() {
currentRotation = currentRotation*0.9f + rotation * 0.1f;
glStencilMask(0xff);
checkGlError("glStencilMask");
glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
checkGlError("glClear");
nvgBeginFrame(vg, w, h, w/h);
nvgBeginPath(vg);
nvgMoveTo(vg, verticeX(90.f), verticeY(90.f));
nvgLineTo(vg, verticeX(90.f + 120.0f), verticeY(90.0f + 120.0f));
nvgLineTo(vg, verticeX(90.f + 240.f), verticeY(90.0f + 240.0f) );
nvgClosePath(vg);
nvgFillColor(vg, nvgRGBA(255,192,0,255));
nvgFill(vg);
nvgFillColor(vg, nvgRGBA(255,192,0,255));
nvgEndFrame(vg);
}
void Renderer2D::drawPath( const attributes_2d& attributes, const float32_t* path, const uint32_t& pathSize,
const float32_t& border, const color_argb& color, const color_argb& borderColor,
const Image2D& image, const float32_t& image_alpha, const float32_t& image_pos_x,
const float32_t& image_pos_y, const float32_t& image_width, const float32_t& image_height,
const float32_t& image_rotation )
{
Context2D* context = _context2D;
if( pathSize < 2 || pathSize % 2 != 0 )
return;
nvgSave( context );
nvgBeginPath( context );
nvgTranslate( context, attributes.position[0], attributes.position[1] );
nvgSave( context );
nvgRotate( context, attributes.rotation );
nvgMoveTo( context, path[0], path[1]);
for( uint32_t i=2; i<pathSize; i+=2 )
{
nvgLineTo( context, path[i] * attributes.scale, path[i+1] * attributes.scale);
}
nvgClosePath( context );
if( image != 0 )
{
NVGpaint paint = nvgImagePattern( context, image_pos_x-image_width/2,
image_pos_y-image_height/2, image_width, image_height, image_rotation, image, image_alpha );
nvgFillPaint( context, paint);
}
else
{
nvgFillColor( context, nvgRGBA( color.r, color.g, color.b, color.a) );
}
nvgFill(context);
nvgStrokeColor( context, nvgRGBA( borderColor.r, borderColor.g, borderColor.b, borderColor.a) );
nvgStrokeWidth( context, border );
nvgStroke( context );
nvgRestore( context );
nvgRestore( context );
}
void NanoVG::closePath()
{
nvgClosePath( m_context() );
}
void NVGRenderer::closePath()
{
nvgClosePath(m_context);
}
void ColorWheel::draw(NVGcontext *ctx) {
Widget::draw(ctx);
if (!mVisible)
return;
float x = mPos.x(),
y = mPos.y(),
w = mSize.x(),
h = mSize.y();
NVGcontext* vg = ctx;
int i;
float r0, r1, ax,ay, bx,by, cx,cy, aeps, r;
float hue = mHue;
NVGpaint paint;
nvgSave(vg);
cx = x + w*0.5f;
cy = y + h*0.5f;
r1 = (w < h ? w : h) * 0.5f - 5.0f;
r0 = r1 * .75f;
aeps = 0.5f / r1; // half a pixel arc length in radians (2pi cancels out).
for (i = 0; i < 6; i++) {
float a0 = (float)i / 6.0f * NVG_PI * 2.0f - aeps;
float a1 = (float)(i+1.0f) / 6.0f * NVG_PI * 2.0f + aeps;
nvgBeginPath(vg);
nvgArc(vg, cx,cy, r0, a0, a1, NVG_CW);
nvgArc(vg, cx,cy, r1, a1, a0, NVG_CCW);
nvgClosePath(vg);
ax = cx + cosf(a0) * (r0+r1)*0.5f;
ay = cy + sinf(a0) * (r0+r1)*0.5f;
bx = cx + cosf(a1) * (r0+r1)*0.5f;
by = cy + sinf(a1) * (r0+r1)*0.5f;
paint = nvgLinearGradient(vg, ax, ay, bx, by,
nvgHSLA(a0 / (NVG_PI * 2), 1.0f, 0.55f, 255),
nvgHSLA(a1 / (NVG_PI * 2), 1.0f, 0.55f, 255));
nvgFillPaint(vg, paint);
nvgFill(vg);
}
nvgBeginPath(vg);
nvgCircle(vg, cx,cy, r0-0.5f);
nvgCircle(vg, cx,cy, r1+0.5f);
nvgStrokeColor(vg, nvgRGBA(0,0,0,64));
nvgStrokeWidth(vg, 1.0f);
nvgStroke(vg);
// Selector
nvgSave(vg);
nvgTranslate(vg, cx,cy);
nvgRotate(vg, hue*NVG_PI*2);
// Marker on
float u = std::max(r1/50, 1.5f);
u = std::min(u, 4.f);
nvgStrokeWidth(vg, u);
nvgBeginPath(vg);
nvgRect(vg, r0-1,-2*u,r1-r0+2,4*u);
nvgStrokeColor(vg, nvgRGBA(255,255,255,192));
nvgStroke(vg);
paint = nvgBoxGradient(vg, r0-3,-5,r1-r0+6,10, 2,4, nvgRGBA(0,0,0,128), nvgRGBA(0,0,0,0));
nvgBeginPath(vg);
nvgRect(vg, r0-2-10,-4-10,r1-r0+4+20,8+20);
nvgRect(vg, r0-2,-4,r1-r0+4,8);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, paint);
nvgFill(vg);
// Center triangle
r = r0 - 6;
ax = cosf(120.0f/180.0f*NVG_PI) * r;
ay = sinf(120.0f/180.0f*NVG_PI) * r;
bx = cosf(-120.0f/180.0f*NVG_PI) * r;
by = sinf(-120.0f/180.0f*NVG_PI) * r;
nvgBeginPath(vg);
nvgMoveTo(vg, r,0);
nvgLineTo(vg, ax, ay);
nvgLineTo(vg, bx, by);
nvgClosePath(vg);
paint = nvgLinearGradient(vg, r, 0, ax, ay, nvgHSLA(hue, 1.0f, 0.5f, 255),
nvgRGBA(255, 255, 255, 255));
nvgFillPaint(vg, paint);
nvgFill(vg);
paint = nvgLinearGradient(vg, (r + ax) * 0.5f, (0 + ay) * 0.5f, bx, by,
nvgRGBA(0, 0, 0, 0), nvgRGBA(0, 0, 0, 255));
nvgFillPaint(vg, paint);
nvgFill(vg);
nvgStrokeColor(vg, nvgRGBA(0, 0, 0, 64));
nvgStroke(vg);
// Select circle on triangle
float sx = r*(1 - mWhite - mBlack) + ax*mWhite + bx*mBlack;
float sy = ay*mWhite + by*mBlack;
nvgStrokeWidth(vg, u);
nvgBeginPath(vg);
nvgCircle(vg, sx,sy,2*u);
nvgStrokeColor(vg, nvgRGBA(255,255,255,192));
nvgStroke(vg);
nvgRestore(vg);
nvgRestore(vg);
}
void drawColorwheel(struct NVGcontext* vg, float x, float y, float w, float h, float t)
{
int i;
float r0, r1, ax,ay, bx,by, cx,cy, aeps, r;
float hue = sinf(t * 0.12f);
struct NVGpaint paint;
nvgSave(vg);
/* nvgBeginPath(vg);
nvgRect(vg, x,y,w,h);
nvgFillColor(vg, nvgRGBA(255,0,0,128) );
nvgFill(vg);*/
cx = x + w*0.5f;
cy = y + h*0.5f;
r1 = (w < h ? w : h) * 0.5f - 5.0f;
r0 = r1 - 20.0f;
aeps = 0.5f / r1; // half a pixel arc length in radians (2pi cancels out).
for (i = 0; i < 6; i++)
{
float a0 = (float)i / 6.0f * NVG_PI * 2.0f - aeps;
float a1 = (float)(i+1.0f) / 6.0f * NVG_PI * 2.0f + aeps;
nvgBeginPath(vg);
nvgArc(vg, cx,cy, r0, a0, a1, NVG_CW);
nvgArc(vg, cx,cy, r1, a1, a0, NVG_CCW);
nvgClosePath(vg);
ax = cx + cosf(a0) * (r0+r1)*0.5f;
ay = cy + sinf(a0) * (r0+r1)*0.5f;
bx = cx + cosf(a1) * (r0+r1)*0.5f;
by = cy + sinf(a1) * (r0+r1)*0.5f;
paint = nvgLinearGradient(vg, ax,ay, bx,by, nvgHSLA(a0/(NVG_PI*2),1.0f,0.55f,255), nvgHSLA(a1/(NVG_PI*2),1.0f,0.55f,255) );
nvgFillPaint(vg, paint);
nvgFill(vg);
}
nvgBeginPath(vg);
nvgCircle(vg, cx,cy, r0-0.5f);
nvgCircle(vg, cx,cy, r1+0.5f);
nvgStrokeColor(vg, nvgRGBA(0,0,0,64) );
nvgStrokeWidth(vg, 1.0f);
nvgStroke(vg);
// Selector
nvgSave(vg);
nvgTranslate(vg, cx,cy);
nvgRotate(vg, hue*NVG_PI*2);
// Marker on
nvgStrokeWidth(vg, 2.0f);
nvgBeginPath(vg);
nvgRect(vg, r0-1,-3,r1-r0+2,6);
nvgStrokeColor(vg, nvgRGBA(255,255,255,192) );
nvgStroke(vg);
paint = nvgBoxGradient(vg, r0-3,-5,r1-r0+6,10, 2,4, nvgRGBA(0,0,0,128), nvgRGBA(0,0,0,0) );
nvgBeginPath(vg);
nvgRect(vg, r0-2-10,-4-10,r1-r0+4+20,8+20);
nvgRect(vg, r0-2,-4,r1-r0+4,8);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, paint);
nvgFill(vg);
// Center triangle
r = r0 - 6;
ax = cosf(120.0f/180.0f*NVG_PI) * r;
ay = sinf(120.0f/180.0f*NVG_PI) * r;
bx = cosf(-120.0f/180.0f*NVG_PI) * r;
by = sinf(-120.0f/180.0f*NVG_PI) * r;
nvgBeginPath(vg);
nvgMoveTo(vg, r,0);
nvgLineTo(vg, ax,ay);
nvgLineTo(vg, bx,by);
nvgClosePath(vg);
paint = nvgLinearGradient(vg, r,0, ax,ay, nvgHSLA(hue,1.0f,0.5f,255), nvgRGBA(255,255,255,255) );
nvgFillPaint(vg, paint);
nvgFill(vg);
paint = nvgLinearGradient(vg, (r+ax)*0.5f,(0+ay)*0.5f, bx,by, nvgRGBA(0,0,0,0), nvgRGBA(0,0,0,255) );
nvgFillPaint(vg, paint);
nvgFill(vg);
nvgStrokeColor(vg, nvgRGBA(0,0,0,64) );
nvgStroke(vg);
// Select circle on triangle
ax = cosf(120.0f/180.0f*NVG_PI) * r*0.3f;
ay = sinf(120.0f/180.0f*NVG_PI) * r*0.4f;
nvgStrokeWidth(vg, 2.0f);
nvgBeginPath(vg);
nvgCircle(vg, ax,ay,5);
nvgStrokeColor(vg, nvgRGBA(255,255,255,192) );
nvgStroke(vg);
paint = nvgRadialGradient(vg, ax,ay, 7,9, nvgRGBA(0,0,0,64), nvgRGBA(0,0,0,0) );
nvgBeginPath(vg);
nvgRect(vg, ax-20,ay-20,40,40);
nvgCircle(vg, ax,ay,7);
nvgPathWinding(vg, NVG_HOLE);
nvgFillPaint(vg, paint);
nvgFill(vg);
nvgRestore(vg);
nvgRestore(vg);
}
void QNanoPainter::closePath()
{
nvgClosePath(nvgCtx());
}
void Shape::render(NVGcontext& nanoVgContext) const
{
switch(mType)
{
case Type::ARC:
{
const ArcInfo& info = mArcInfo;
const Point& position = info.position;
nvgArc(&nanoVgContext, position.getX(), position.getY(), info.radius, info.startAngle,
info.endAngle, info.clockWise ? NVG_CW : NVG_CCW);
}
break;
case Type::TRIANGLE:
{
const TriangleInfo& info = mTriangleInfo;
nvgMoveTo(&nanoVgContext, info.firstVertex.getX(), info.firstVertex.getY());
nvgLineTo(&nanoVgContext, info.secondVertex.getX(), info.secondVertex.getY());
nvgLineTo(&nanoVgContext, info.thirdVertex.getX(), info.thirdVertex.getY());
nvgClosePath(&nanoVgContext);
}
break;
case Type::RECT:
{
const RectInfo& info = mRectInfo;
const Rect& rect = info.rect;
if(info.rounded)
{
nvgRoundedRect(&nanoVgContext, rect.getX(), rect.getY(), rect.getWidth(),
rect.getHeight(), info.cornerRadius);
}
else
{
nvgRect(&nanoVgContext, rect.getX(), rect.getY(), rect.getWidth(), rect.getHeight());
}
}
break;
case Type::ELLIPSE:
{
const EllipseInfo& info = mEllipseInfo;
const Point& position = info.position;
nvgEllipse(&nanoVgContext, position.getX(), position.getY(), info.horizontalRadius,
info.verticalRadius);
}
break;
case Type::MOVE_TO:
{
const MoveToInfo& info = mMoveToInfo;
const Point& position = info.position;
nvgMoveTo(&nanoVgContext, position.getX(), position.getY());
}
break;
case Type::LINE_TO:
{
const LineToInfo& info = mLineToInfo;
const Point& position = info.position;
nvgLineTo(&nanoVgContext, position.getX(), position.getY());
}
break;
case Type::BEZIER_TO:
{
const BezierToInfo& info = mBezierToInfo;
const Point& control1 = info.controlPosition1;
const Point& control2 = info.controlPosition2;
const Point& position = info.position;
nvgBezierTo(&nanoVgContext, control1.getX(), control1.getY(), control2.getX(),
control2.getY(), position.getX(), position.getY());
}
break;
case Type::QUAD_TO:
{
const QuadToInfo& info = mQuadToInfo;
const Point& control = info.controlPosition;
const Point& position = info.position;
nvgQuadTo(&nanoVgContext, control.getX(), control.getY(), position.getX(), position.getY());
}
break;
case Type::CLOSE_PATH:
{
nvgClosePath(&nanoVgContext);
}
break;
default:
return;
}
}
int main()
{
constexpr auto width = 1200u;
constexpr auto height = 800u;
// init ny app
auto& backend = ny::Backend::choose();
if(!backend.vulkan()) {
dlg_error("ny backend has no vulkan support!");
return 0;
}
auto ac = backend.createAppContext();
// basic vpp init
auto iniExtensions = ac->vulkanExtensions();
iniExtensions.push_back(VK_EXT_DEBUG_REPORT_EXTENSION_NAME);
vk::ApplicationInfo appInfo ("vpp-intro", 1, "vpp", 1, VK_API_VERSION_1_0);
vk::InstanceCreateInfo instanceInfo;
instanceInfo.pApplicationInfo = &appInfo;
instanceInfo.enabledExtensionCount = iniExtensions.size();
instanceInfo.ppEnabledExtensionNames = iniExtensions.data();
#ifdef WithLayers
constexpr auto layer = "VK_LAYER_LUNARG_standard_validation";
instanceInfo.enabledLayerCount = 1;
instanceInfo.ppEnabledLayerNames = &layer;
#endif
vpp::Instance instance(instanceInfo);
#ifdef WithLayers
vpp::DebugCallback debugCallback(instance);
#endif
// ny init
auto run = true;
auto listener = MyWindowListener {};
listener.run = &run;
auto vkSurface = vk::SurfaceKHR {};
auto ws = ny::WindowSettings {};
ws.surface = ny::SurfaceType::vulkan;
ws.listener = &listener;
ws.size = {width, height};
ws.vulkan.instance = (VkInstance) instance.vkHandle();
ws.vulkan.storeSurface = &(std::uintptr_t&) (vkSurface);
auto wc = ac->createWindowContext(ws);
// further vpp init
const vpp::Queue* presentQueue;
vpp::Device device(instance, vkSurface, presentQueue);
vpp::Swapchain swapchain(device, vkSurface, {width, height}, {});
// vvg setup
auto nvgContext = vvg::createContext(swapchain);
auto font = nvgCreateFont(nvgContext, "sans", "Roboto-Regular.ttf");
using Clock = std::chrono::high_resolution_clock;
auto lastFrameTimer = Clock::now();
unsigned int framesCount = 0;
std::string fpsString = "420 fps";
// main loop
while(run) {
if(!ac->dispatchEvents())
break;
nvgBeginFrame(nvgContext, width, height, width / (float) height);
nvgBeginPath(nvgContext);
nvgMoveTo(nvgContext, 10, 10);
nvgLineTo(nvgContext, 10, 400);
nvgLineTo(nvgContext, 100, 400);
nvgQuadTo(nvgContext, 100, 50, 400, 120);
nvgLineTo(nvgContext, 450, 10);
nvgClosePath(nvgContext);
nvgFillColor(nvgContext, nvgRGBAf(0.5, 0.8, 0.7, 1.0));
nvgFill(nvgContext);
nvgBeginPath(nvgContext);
nvgFontFaceId(nvgContext, font);
nvgFontSize(nvgContext, 100.f);
nvgFontBlur(nvgContext, .8f);
nvgFillColor(nvgContext, nvgRGBAf(1.0, 1.0, 1.0, 1.0));
nvgTextBox(nvgContext, 200, 200, width - 200, "Hello Vulkan Vector Graphics World", nullptr);
nvgFontSize(nvgContext, 30.f);
nvgFontBlur(nvgContext, .2f);
nvgText(nvgContext, 10, height - 20, fpsString.c_str(), nullptr);
nvgBeginPath(nvgContext);
nvgRect(nvgContext, 700, 400, 300, 300);
nvgPathWinding(nvgContext, NVG_HOLE);
nvgRect(nvgContext, 750, 450, 50, 50);
// auto paint = nvgRadialGradient(nvgContext, 750, 425,20, 50, nvgRGB(0, 0, 200), nvgRGB(200, 200, 0));
// auto paint = nvgRadialGradient(nvgContext, 0.0, 0.0, 0.2, 100.0, nvgRGB(0, 0, 200), nvgRGB(200, 200, 0));
auto paint = nvgLinearGradient(nvgContext, 700, 400, 800, 450, nvgRGB(0, 0, 200), nvgRGB(200, 200, 0));
nvgFillPaint(nvgContext, paint);
// nvgFillColor(nvgContext, nvgRGBA(200, 200, 0, 200));
nvgClosePath(nvgContext);
nvgFill(nvgContext);
nvgEndFrame(nvgContext);
// only refresh frame timer every second
framesCount++;
if(Clock::now() - lastFrameTimer >= std::chrono::seconds(1)) {
fpsString = std::to_string(framesCount) + " fps";
lastFrameTimer = Clock::now();
framesCount = 0;
}
}
vvg::destroyContext(*nvgContext);
}