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#ifndef RENDERBUFFERMANAGER_H
#define RENDERBUFFERMANAGER_H
#include "Runtime/GfxDevice/GfxDeviceTypes.h"
#include "Runtime/Utilities/MemoryPool.h"
#include "Runtime/BaseClasses/BaseObject.h"
class RenderTexture;
/* Manager for getting temporary render buffers.
* Use this instead of creating RenderTextures if you need a quick buffer.
* This is a low-overhead class that recycles render textures.
*/
class RenderBufferManager
{
RenderBufferManager () { m_CurrentRBMFrame = m_TempBuffers = 0; }
public:
enum { kFullSize = -1 };
enum {
kRBCubemap = (1<<0),
kRBCreatedFromScript = (1<<1),
kRBSampleOnlyDepth = (1<<2),
};
enum { kKillFrames = 15 };
static void InitRenderBufferManager ();
static void CleanupRenderBufferManager ();
// Get a RenderTexture with the specific sizes
// If the width & height parameters uses autosizing, viewport size is taken from the current camera.
RenderTexture *GetTempBuffer (int width, int height, DepthBufferFormat depthFormat, RenderTextureFormat colorFormat, UInt32 flags, RenderTextureReadWrite colorSpace, int antiAliasing = 1);
// Release the temporary buffer.
void ReleaseTempBuffer (RenderTexture *rTex);
void GarbageCollect (int framesDelay = kKillFrames);
void Cleanup ();
private:
typedef std::set<PPtr<RenderTexture>, std::less< PPtr<RenderTexture> > , memory_pool<PPtr<RenderTexture> > > TakenTextures;
typedef std::pair <int, PPtr<RenderTexture> > IntPPtrPair;
typedef std::list<IntPPtrPair, memory_pool<IntPPtrPair > > FreeTextures;
FreeTextures m_FreeTextures;
TakenTextures m_TakenTextures;
int m_TempBuffers;
int m_CurrentRBMFrame;
};
RenderBufferManager& GetRenderBufferManager ();
RenderBufferManager* GetRenderBufferManagerPtr ();
#endif
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