void Dispatcher::contextProcedure(void* ucontext) {
assert(firstReusableContext == nullptr);
NativeContext context;
context.ucontext = ucontext;
context.interrupted = false;
context.next = nullptr;
firstReusableContext = &context;
ucontext_t* oldContext = static_cast<ucontext_t*>(context.ucontext);
if (swapcontext(oldContext, static_cast<ucontext_t*>(currentContext->ucontext)) == -1) {
throw std::runtime_error("Dispatcher::contextProcedure, swapcontext failed, " + lastErrorMessage());
}
for (;;) {
++runningContextCount;
try {
context.procedure();
} catch(std::exception&) {
}
if (context.group != nullptr) {
if (context.groupPrev != nullptr) {
assert(context.groupPrev->groupNext == &context);
context.groupPrev->groupNext = context.groupNext;
if (context.groupNext != nullptr) {
assert(context.groupNext->groupPrev == &context);
context.groupNext->groupPrev = context.groupPrev;
} else {
assert(context.group->lastContext == &context);
context.group->lastContext = context.groupPrev;
}
} else {
assert(context.group->firstContext == &context);
context.group->firstContext = context.groupNext;
if (context.groupNext != nullptr) {
assert(context.groupNext->groupPrev == &context);
context.groupNext->groupPrev = nullptr;
} else {
assert(context.group->lastContext == &context);
if (context.group->firstWaiter != nullptr) {
if (firstResumingContext != nullptr) {
assert(lastResumingContext->next == nullptr);
lastResumingContext->next = context.group->firstWaiter;
} else {
firstResumingContext = context.group->firstWaiter;
}
lastResumingContext = context.group->lastWaiter;
context.group->firstWaiter = nullptr;
}
}
}
pushReusableContext(context);
}
dispatch();
}
};
void Window2_Render(Win32Window* window, float alpha, float elapsedtime)
{
static float time = 0;
float world[16];
time += elapsedtime;
DrawingItem* drawingitem = window->GetDrawingItem();
DrawingLayer& bottomlayer = drawingitem->GetBottomLayer();
{
NativeContext context = bottomlayer.GetContext();
GLMatrixRotationAxis(world, -fmodf(time * 20.0f, 360.0f) * (3.14152f / 180.0f), 0, 0, 1);
context.Clear(OpenGLColor(0.0f, 0.125f, 0.3f, 1.0f));
context.SetWorldTransform(world);
context.SetColor(OpenGLColor(1, 1, 1, 1));
context.MoveTo(-120, 120);
context.LineTo(120, 120);
context.LineTo(120, -120);
context.LineTo(-120, -120);
context.LineTo(-120, 120);
}
drawingitem->RecomposeLayers();
}
void Dispatcher::contextProcedure() {
assert(GetCurrentThreadId() == threadId);
assert(firstReusableContext == nullptr);
NativeContext context;
context.interrupted = false;
context.next = nullptr;
context.inExecutionQueue = false;
firstReusableContext = &context;
SwitchToFiber(currentContext->fiber);
for (;;) {
++runningContextCount;
try {
context.procedure();
} catch (...) {
}
if (context.group != nullptr) {
if (context.groupPrev != nullptr) {
assert(context.groupPrev->groupNext == &context);
context.groupPrev->groupNext = context.groupNext;
if (context.groupNext != nullptr) {
assert(context.groupNext->groupPrev == &context);
context.groupNext->groupPrev = context.groupPrev;
} else {
assert(context.group->lastContext == &context);
context.group->lastContext = context.groupPrev;
}
} else {
assert(context.group->firstContext == &context);
context.group->firstContext = context.groupNext;
if (context.groupNext != nullptr) {
assert(context.groupNext->groupPrev == &context);
context.groupNext->groupPrev = nullptr;
} else {
assert(context.group->lastContext == &context);
if (context.group->firstWaiter != nullptr) {
if (firstResumingContext != nullptr) {
assert(lastResumingContext->next == nullptr);
lastResumingContext->next = context.group->firstWaiter;
} else {
firstResumingContext = context.group->firstWaiter;
}
lastResumingContext = context.group->lastWaiter;
context.group->firstWaiter = nullptr;
}
}
}
pushReusableContext(context);
}
dispatch();
}
}
void THREAD_Run()
{
float world[16];
float time = 0;
while( true )
{
if( !glwindow )
continue;
DrawingItem* drawingitem = glwindow->GetDrawingItem();
DrawingLayer& feedbacklayer = drawingitem->GetFeedbackLayer();
{
NativeContext context = feedbacklayer.GetContext();
float bigradius = 150;
float smallradius = 80;
float m2pi = 6.293185f;
int segments = 16;
GLMatrixRotationAxis(world, fmodf(time * 20.0f, 360.0f) * (3.14152f / 180.0f), 0, 0, 1);
context.Clear(OpenGLColor(0, 0, 0, 0));
context.SetWorldTransform(world);
context.SetColor(OpenGLColor(0, 1, 0, 1));
context.MoveTo(0, bigradius);
for( int i = 1; i <= segments; ++i )
{
if( i % 2 == 1 )
{
context.LineTo(
sinf((m2pi / segments) * i) * smallradius,
cosf((m2pi / segments) * i) * smallradius);
}
else
{
context.LineTo(
sinf((m2pi / segments) * i) * bigradius,
cosf((m2pi / segments) * i) * bigradius);
}
}
}
time += 0.5f;
Sleep(500); // 34
}
}
void Window1_Render(Win32Window* window, float alpha, float elapsedtime)
{
static float time = 0;
float world[16];
time += elapsedtime;
DrawingItem* drawingitem = window->GetDrawingItem();
DrawingLayer& bottomlayer = drawingitem->GetBottomLayer();
{
NativeContext context = bottomlayer.GetContext();
float bigradius = 150;
float smallradius = 80;
float m2pi = 6.293185f;
int segments = 16;
GLMatrixRotationAxis(world, fmodf(time * 20.0f, 360.0f) * (3.14152f / 180.0f), 0, 0, 1);
context.Clear(OpenGLColor(0.0f, 0.125f, 0.3f, 1.0f));
context.SetWorldTransform(world);
context.MoveTo(0, bigradius);
for( int i = 1; i <= segments; ++i )
{
if( i % 2 == 1 )
{
context.LineTo(
sinf((m2pi / segments) * i) * smallradius,
cosf((m2pi / segments) * i) * smallradius);
}
else
{
context.LineTo(
sinf((m2pi / segments) * i) * bigradius,
cosf((m2pi / segments) * i) * bigradius);
}
}
}
DrawingLayer& feedbacklayer = drawingitem->GetFeedbackLayer();
{
NativeContext context = feedbacklayer.GetContext();
GLMatrixRotationAxis(world, -fmodf(time * 20.0f, 360.0f) * (3.14152f / 180.0f), 0, 0, 1);
context.Clear(OpenGLColor(0, 0, 0, 0));
context.SetWorldTransform(world);
context.SetColor(OpenGLColor(0, 1, 0, 1));
context.MoveTo(-120, 120);
context.LineTo(120, 120);
context.LineTo(120, -120);
context.LineTo(-120, -120);
context.LineTo(-120, 120);
}
drawingitem->RecomposeLayers();
}
