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pausing background rendering when animation is started, and resuming it back when it's finished.

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rachytski 2012-09-12 13:30:07 +03:00 • committed by Alex Zolotarev
parent 44c86c6e57
commit 8db4539504
2 changed files with 38 additions and 5 deletions
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38
map/basic_tiling_render_policy.cpp
View file

@ -40,7 +40,8 @@ BasicTilingRenderPolicy::BasicTilingRenderPolicy(Params const & p,
m_DrawScale(0),
m_IsEmptyModel(false),
m_DoRecreateCoverage(false),
m_IsNavigating(false)
m_IsNavigating(false),
m_WasAnimatingLastFrame(false)
{
m_TileSize = CalculateTileSize(p.m_screenWidth, p.m_screenHeight);
@ -58,6 +59,21 @@ void BasicTilingRenderPolicy::BeginFrame(shared_ptr<PaintEvent> const & e, Scree
m_QueuedRenderer->BeginFrame();
}
void BasicTilingRenderPolicy::CheckAnimationTransition()
{
// transition from non-animating to animating,
// should stop all background work
if (!m_WasAnimatingLastFrame && IsAnimating())
PauseBackgroundRendering();
// transition from animating to non-animating
// should resume all background work
if (m_WasAnimatingLastFrame && !IsAnimating())
ResumeBackgroundRendering();
m_WasAnimatingLastFrame = IsAnimating();
}
void BasicTilingRenderPolicy::DrawFrame(shared_ptr<PaintEvent> const & e, ScreenBase const & s)
{
if (m_QueuedRenderer)
@ -66,6 +82,8 @@ void BasicTilingRenderPolicy::DrawFrame(shared_ptr<PaintEvent> const & e, Screen
m_resourceManager->updatePoolState();
}
CheckAnimationTransition();
/// checking, whether we should add the CoverScreen command
bool doForceUpdate = DoForceUpdate();
@ -120,24 +138,34 @@ TileRenderer & BasicTilingRenderPolicy::GetTileRenderer()
return *m_TileRenderer.get();
}
void BasicTilingRenderPolicy::StartNavigation()
void BasicTilingRenderPolicy::PauseBackgroundRendering()
{
m_TileRenderer->SetIsPaused(true);
m_IsNavigating = true;
m_TileRenderer->CancelCommands();
if (m_QueuedRenderer)
m_QueuedRenderer->SetPartialExecution(GetPlatform().CpuCores(), true);
}
void BasicTilingRenderPolicy::StopNavigation()
void BasicTilingRenderPolicy::ResumeBackgroundRendering()
{
m_TileRenderer->SetIsPaused(false);
m_IsNavigating = false;
m_DoRecreateCoverage = true;
if (m_QueuedRenderer)
m_QueuedRenderer->SetPartialExecution(GetPlatform().CpuCores(), false);
}
void BasicTilingRenderPolicy::StartNavigation()
{
m_IsNavigating = true;
PauseBackgroundRendering();
}
void BasicTilingRenderPolicy::StopNavigation()
{
m_IsNavigating = false;
ResumeBackgroundRendering();
}
void BasicTilingRenderPolicy::StartScale()
{
StartNavigation();

5
map/basic_tiling_render_policy.hpp
View file

@ -35,6 +35,7 @@ protected:
string m_CountryName;
bool m_DoRecreateCoverage;
bool m_IsNavigating;
bool m_WasAnimatingLastFrame;
size_t m_TileSize;
protected:
@ -44,6 +45,10 @@ protected:
void StartNavigation();
void StopNavigation();
void PauseBackgroundRendering();
void ResumeBackgroundRendering();
void CheckAnimationTransition();
public:
BasicTilingRenderPolicy(Params const & p,