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vdr-plugin-skindesigner/coreengine/animation.c

348 lines
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C
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#include "animation.h"
#include <math.h>
/******************************************************************
* cAnimation
******************************************************************/
cAnimation::cAnimation(cScrollable *scrollable) : cThread("scroller") {
this->scrollable = scrollable;
this->detachable = NULL;
this->fadable = NULL;
this->shiftable = NULL;
this->blinkable = NULL;
waitOnWakeup = false;
doAnimation = true;
modeIn = false;
blinkFunc = -1;
}
cAnimation::cAnimation(cDetachable *detachable, bool wait, bool animation) : cThread("detached") {
this->scrollable = NULL;
this->detachable = detachable;
this->fadable = NULL;
this->shiftable = NULL;
this->blinkable = NULL;
waitOnWakeup = wait;
doAnimation = animation;
modeIn = false;
blinkFunc = -1;
}
cAnimation::cAnimation(cFadable *fadable, bool fadein) : cThread("fadable") {
this->scrollable = NULL;
this->detachable = NULL;
this->fadable = fadable;
this->shiftable = NULL;
this->blinkable = NULL;
waitOnWakeup = false;
doAnimation = true;
modeIn = fadein;
blinkFunc = -1;
}
cAnimation::cAnimation(cShiftable *shiftable, cPoint &start, cPoint &end, bool shiftin) : cThread("shiftable") {
this->scrollable = NULL;
this->detachable = NULL;
this->fadable = NULL;
this->shiftable = shiftable;
this->blinkable = NULL;
waitOnWakeup = false;
doAnimation = true;
modeIn = shiftin;
shiftstart = start;
shiftend = end;
blinkFunc = -1;
}
cAnimation::cAnimation(cBlinkable *blinkable, int func) : cThread("blinking") {
this->scrollable = NULL;
this->detachable = NULL;
this->fadable = NULL;
this->shiftable = NULL;
this->blinkable = blinkable;
waitOnWakeup = false;
doAnimation = true;
modeIn = false;
blinkFunc = func;
}
cAnimation::~cAnimation(void) {
sleepWait.Signal();
Cancel(2);
}
void cAnimation::WakeUp(void) {
sleepWait.Signal();
}
void cAnimation::Stop(bool deletePixmaps) {
sleepWait.Signal();
Cancel(2);
if (scrollable && deletePixmaps)
scrollable->StopScrolling();
}
void cAnimation::Action(void) {
if (scrollable) {
Scroll();
} else if (detachable) {
Detach();
} else if (fadable) {
Fade();
} else if (shiftable) {
Shift();
} else if (blinkable) {
Blink();
}
}
void cAnimation::Sleep(int duration) {
//sleep should wake up itself, so no infinit wait allowed
if (duration <= 0)
return;
sleepWait.Wait(duration);
}
void cAnimation::Wait(void) {
//wait has to be waked up from outside
sleepWait.Wait(0);
}
void cAnimation::Scroll(void) {
int delay = scrollable->ScrollDelay();
Sleep(delay);
if (!Running()) return;
eOrientation orientation = scrollable->ScrollOrientation();
int scrollTotal = 0;
if (orientation == eOrientation::horizontal) {
scrollTotal = scrollable->ScrollWidth();
} else if (orientation == eOrientation::vertical) {
scrollTotal = scrollable->ScrollHeight();
}
eScrollMode mode = scrollable->ScrollMode();
bool carriageReturn = (mode == eScrollMode::carriagereturn) ? true : false;
eScrollSpeed speed = scrollable->ScrollSpeed();
int frameTime = 30;
if (speed == eScrollSpeed::slow)
frameTime = 50;
else if (speed == eScrollSpeed::medium)
frameTime = 30;
else if (speed == eScrollSpeed::fast)
frameTime = 15;
if (!Running()) return;
scrollable->StartScrolling();
int drawPortX = 0;
int drawPortY = 0;
int scrollDelta = 1;
bool doSleep = false;
while (Running()) {
if (doSleep) {
Sleep(delay);
doSleep = false;
}
if (!Running()) return;
uint64_t now = cTimeMs::Now();
cPoint drawPortPoint(0,0);
if (orientation == eOrientation::horizontal) {
drawPortX -= scrollDelta;
if (abs(drawPortX) > scrollTotal) {
Sleep(delay);
if (carriageReturn) {
drawPortX = 0;
doSleep = true;
} else {
scrollDelta *= -1;
drawPortX -= scrollDelta;
}
}
drawPortPoint.SetX(drawPortX);
} else if (orientation == eOrientation::vertical) {
drawPortY -= scrollDelta;
if (abs(drawPortY) > scrollTotal) {
Sleep(delay);
drawPortY = 0;
doSleep = true;
}
drawPortPoint.SetY(drawPortY);
}
if (!Running()) return;
scrollable->SetDrawPort(drawPortPoint);
if (!Running()) return;
scrollable->Flush();
if (orientation == eOrientation::horizontal && !carriageReturn && (drawPortX == 0)) {
scrollDelta *= -1;
doSleep = true;
}
int delta = cTimeMs::Now() - now;
if (delta < frameTime)
Sleep(frameTime - delta);
}
}
void cAnimation::Detach(void) {
if (waitOnWakeup) {
Wait();
int delay = 100 + detachable->Delay();
Sleep(delay);
} else {
int delay = detachable->Delay();
Sleep(delay);
}
if (!Running()) return;
detachable->ParseDetached();
if (!Running()) return;
detachable->RenderDetached();
if (!Running()) return;
detachable->Flush();
if (!Running()) return;
if (doAnimation) {
detachable->StartAnimation();
}
}
void cAnimation::Fade(void) {
int fadetime = fadable->FadeTime();
int frametime = 1000 / FPS;
int step = 100.0f / ((double)fadetime / (double)frametime);
uint64_t start = cTimeMs::Now();
int transparency = 0;
if (modeIn) {
transparency = 100 - step;
} else {
transparency = step;
}
//wait configured delay if not already done by detacher
if (!fadable->Detached()) {
int delay = fadable->Delay();
if (delay > 0)
Sleep(delay);
}
while (Running() || !modeIn) {
uint64_t now = cTimeMs::Now();
if (Running() || !modeIn)
fadable->SetTransparency(transparency, !modeIn);
if (Running() || !modeIn)
fadable->Flush();
int delta = cTimeMs::Now() - now;
if ((Running() || !modeIn) && (delta < frametime)) {
Sleep(frametime - delta);
}
if ((int)(now - start) > fadetime) {
if ((Running() && modeIn) && transparency > 0) {
fadable->SetTransparency(0);
fadable->Flush();
} else if (!modeIn && transparency < 100) {
fadable->SetTransparency(100, true);
fadable->Flush();
}
break;
}
if (modeIn) {
transparency -= step;
if (transparency < 0)
transparency = 0;
} else {
transparency += step;
if (transparency > 100)
transparency = 100;
}
}
}
void cAnimation::Shift(void) {
int shifttime = shiftable->ShiftTime();
eShiftMode mode = (eShiftMode)shiftable->ShiftMode();
//in shiftmode slowedDown shifting is done starting with slowratio % faster
//at start. Then speed reduces linear to (100 - slowratio)% at end
//for me 60 is a nice value :-)
int slowRatio = 60;
int frametime = 1000 / FPS;
int steps = (double)shifttime / (double)frametime;
int stepXLinear = 0;
int stepYLinear = 0;
if (shiftstart.X() == shiftend.X()) {
stepYLinear = (shiftend.Y() - shiftstart.Y()) / steps;
} else if (shiftstart.Y() == shiftend.Y()) {
stepXLinear = (shiftend.X() - shiftstart.X()) / steps;
} else {
stepXLinear = (shiftend.X() - shiftstart.X()) / steps;
stepYLinear = (shiftend.Y() - shiftstart.Y()) / steps;
}
int stepX = stepXLinear;
int stepY = stepYLinear;
cPoint pos;
if (modeIn)
pos = shiftstart;
else
pos = shiftend;
//wait configured delay if not already done by detacher
if (!shiftable->Detached()) {
int delay = shiftable->Delay();
if (delay > 0)
Sleep(delay);
}
uint64_t start = cTimeMs::Now();
while (Running() || !modeIn) {
uint64_t now = cTimeMs::Now();
if (Running() || !modeIn)
shiftable->SetPosition(pos, shiftend);
if (Running() || !modeIn)
shiftable->Flush();
int delta = cTimeMs::Now() - now;
if ((Running() || !modeIn) && (delta < frametime)) {
cCondWait::SleepMs(frametime - delta);
}
if ((int)(now - start) > shifttime) {
if ((Running() && modeIn) && pos != shiftend) {
shiftable->SetPosition(shiftend, shiftend);
shiftable->Flush();
}
break;
}
if (mode == eShiftMode::slowedDown) {
double t = (double)(now - start) / (double)shifttime;
double factor = 1.0f + (double)slowRatio / 100.0f - 2.0f * ((double)slowRatio / 100.0f) * t;
stepX = stepXLinear * factor;
stepY = stepYLinear * factor;
}
if (modeIn) {
pos.Set(pos.X() + stepX, pos.Y() + stepY);
} else {
pos.Set(pos.X() - stepX, pos.Y() - stepY);
}
}
}
void cAnimation::Blink(void) {
int freq = blinkable->BlinkFreq(blinkFunc);
bool blinkOn = false;
while (Running()) {
Sleep(freq);
if (Running()) {
blinkable->DoBlink(blinkFunc, blinkOn);
blinkable->Flush();
}
blinkOn = !blinkOn;
}
}
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