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#pragma once
#include "drawer.hpp"
#include "../graphics/color.hpp"
#include "../geometry/rect2d.hpp"
#include "../std/function.hpp"
#include "../std/shared_ptr.hpp"
class PaintEvent;
class ScreenBase;
class VideoTimer;
namespace anim
{
class Controller;
}
namespace graphics
{
class RenderContext;
class Skin;
class GlyphCache;
class ResourceManager;
}
namespace anim
{
class Controller;
class Task;
}
class WindowHandle;
class RenderPolicy
{
public:
typedef function<void(shared_ptr<PaintEvent>,
ScreenBase const &,
m2::RectD const &,
int)> TRenderFn;
protected:
graphics::Color m_bgColor;
shared_ptr<graphics::ResourceManager> m_resourceManager;
shared_ptr<graphics::Skin> m_skin;
shared_ptr<graphics::Screen> m_cacheScreen;
shared_ptr<graphics::RenderContext> m_primaryRC;
shared_ptr<WindowHandle> m_windowHandle;
shared_ptr<Drawer> m_drawer;
TRenderFn m_renderFn;
bool m_doSupportRotation;
bool m_doForceUpdate;
m2::AnyRectD m_invalidRect;
graphics::EDensity m_density;
double m_visualScale;
string m_skinName;
anim::Controller * m_controller;
shared_ptr<graphics::Overlay> m_overlay;
void InitCacheScreen();
public:
struct Params
{
VideoTimer * m_videoTimer;
bool m_useDefaultFB;
graphics::ResourceManager::Params m_rmParams;
shared_ptr<graphics::RenderContext> m_primaryRC;
graphics::EDensity m_density;
string m_skinName;
size_t m_screenWidth;
size_t m_screenHeight;
};
/// constructor
RenderPolicy(Params const & p,
bool doSupportRotation,
size_t idCacheSize);
/// destructor
virtual ~RenderPolicy();
/// starting frame
virtual void BeginFrame(shared_ptr<PaintEvent> const & e, ScreenBase const & s);
/// drawing single frame
virtual void DrawFrame(shared_ptr<PaintEvent> const & e, ScreenBase const & s) = 0;
/// ending frame
virtual void EndFrame(shared_ptr<PaintEvent> const & e, ScreenBase const & s);
/// processing resize request
virtual void OnSize(int w, int h);
/// reacting on navigation actions
/// @{
virtual void StartDrag();
virtual void DoDrag();
virtual void StopDrag();
virtual void StartScale();
virtual void DoScale();
virtual void StopScale();
virtual void StartRotate(double a, double timeInSec);
virtual void DoRotate(double a, double timeInSec);
virtual void StopRotate(double a, double timeInSec);
/// @}
/// the start point of rendering in renderpolicy.
virtual void SetRenderFn(TRenderFn const & renderFn);
void SetAnimController(anim::Controller * controller);
bool DoSupportRotation() const;
virtual bool IsTiling() const;
virtual bool NeedRedraw() const;
virtual bool IsEmptyModel() const;
bool DoForceUpdate() const;
void SetForceUpdate(bool flag);
bool IsAnimating() const;
void SetInvalidRect(m2::AnyRectD const & glbRect);
m2::AnyRectD const & GetInvalidRect() const;
shared_ptr<Drawer> const & GetDrawer() const;
shared_ptr<WindowHandle> const & GetWindowHandle() const;
graphics::GlyphCache * GetGlyphCache() const;
double VisualScale() const;
virtual size_t TileSize() const { return 256; }
graphics::EDensity Density() const;
string const & SkinName() const;
/// This function is used when we need to prevent race
/// conditions on some resources, which could be modified
/// from another threads.
/// One example of such resource is a current graphics::Overlay
/// object
/// @{
virtual void FrameLock();
virtual void FrameUnlock();
/// @}
/// Get current graphics::Overlay object.
/// Access to this resource should be synchronized using
/// FrameLock/FrameUnlock methods
virtual graphics::Overlay * FrameOverlay() const;
/// Benchmarking protocol
virtual int InsertBenchmarkFence();
virtual void JoinBenchmarkFence(int fenceID);
graphics::Color const GetBgColor() const;
shared_ptr<graphics::Screen> const & GetCacheScreen() const;
shared_ptr<graphics::ResourceManager> const & GetResourceManager() const { return m_resourceManager; }
shared_ptr<graphics::RenderContext> const & GetRenderContext() const { return m_primaryRC; }
graphics::Screen * CreateScreenWithParams(graphics::Screen::Params const & params) const;
protected:
void InitWindowsHandle(VideoTimer * timer, shared_ptr<graphics::RenderContext> context);
Drawer * CreateDrawer(bool isDefaultFB,
shared_ptr<graphics::RenderContext> context,
graphics::EStorageType storageType,
graphics::ETextureType textureType);
size_t GetLargeTextureSize(bool useNpot);
size_t GetMediumTextureSize(bool useNpot);
size_t GetSmallTextureSize(bool useNpot);
graphics::ResourceManager::StoragePoolParams GetStorageParam(size_t vertexCount,
size_t indexCount,
size_t batchSize,
graphics::EStorageType type);
graphics::ResourceManager::TexturePoolParams GetTextureParam(size_t size,
size_t initCount,
graphics::DataFormat format,
graphics::ETextureType type);
};
RenderPolicy * CreateRenderPolicy(RenderPolicy::Params const & params);
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