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#include "UnityPrefix.h"
#include "RenderBufferManager.h"
#include "Runtime/Camera/Camera.h"
#include "Runtime/Camera/CameraUtil.h"
#include "Runtime/Camera/RenderManager.h"
#include "Runtime/GfxDevice/GfxDevice.h"
#include "RenderTexture.h"
#include "Runtime/Utilities/BitUtility.h"
#include "Runtime/Profiler/Profiler.h"
#if UNITY_XENON
#include "PlatformDependent/Xbox360/Source/GfxDevice/TexturesXenon.h"
#elif UNITY_WII
#include "Runtime/Graphics/ScreenManager.h"
#endif
#ifndef DEBUG_RB_MANAGER
#define DEBUG_RB_MANAGER 0
#endif
using namespace std;
static RenderBufferManager* gRenderBufferManager = NULL;
void RenderBufferManager::InitRenderBufferManager ()
{
Assert(gRenderBufferManager == NULL);
gRenderBufferManager = new RenderBufferManager();
}
void RenderBufferManager::CleanupRenderBufferManager ()
{
Assert(gRenderBufferManager != NULL);
delete gRenderBufferManager;
gRenderBufferManager = NULL;
}
RenderBufferManager& GetRenderBufferManager ()
{
Assert(gRenderBufferManager != NULL);
return *gRenderBufferManager;
}
RenderBufferManager* GetRenderBufferManagerPtr ()
{
return gRenderBufferManager;
}
static int CalcSize( int size, int parentSize )
{
switch (size) {
case RenderBufferManager::kFullSize:
return parentSize;
default:
#if DEBUGMODE
if( size <= 0 ) {
AssertString ("Invalid Temp Buffer size");
return 128;
}
#endif
return size;
}
}
RenderTexture *RenderBufferManager::GetTempBuffer (int width, int height, DepthBufferFormat depthFormat, RenderTextureFormat colorFormat, UInt32 flags, RenderTextureReadWrite colorSpace, int antiAliasing)
{
if( colorFormat == kRTFormatDefault )
colorFormat = GetGfxDevice().GetDefaultRTFormat();
if( colorFormat == kRTFormatDefaultHDR )
colorFormat = GetGfxDevice().GetDefaultHDRRTFormat();
bool sRGB = colorSpace == kRTReadWriteSRGB;
const bool createdFromScript = flags & kRBCreatedFromScript;
const bool sampleOnlyDepth = flags & kRBSampleOnlyDepth;
const TextureDimension dim = (flags & kRBCubemap) ? kTexDimCUBE : kTexDim2D;
if (colorSpace == kRTReadWriteDefault)
sRGB = GetActiveColorSpace() == kLinearColorSpace;
// only SRGB where it makes sense
sRGB = sRGB && (colorFormat != GetGfxDevice().GetDefaultHDRRTFormat());
if( width <= 0 || height <= 0 )
{
if (dim != kTexDim2D) {
AssertString( "Trying to get a relatively sized RenderBuffer cubemap" );
return NULL;
}
Camera *cam = GetCurrentCameraPtr();
if (cam == NULL) {
AssertString ("Trying to get a relatively sized RenderBuffer without an active camera.");
return NULL;
}
Rectf r = cam->GetScreenViewportRect();
#if UNITY_WII
GetScreenManager().ScaleViewportToFrameBuffer(r);
#endif
// Figure out pixel size. Get screen extents as ints so we do the rounding correctly.
int viewport[4];
RectfToViewport(r, viewport);
width = viewport[2];
height = viewport[3];
}
if (dim == kTexDimCUBE && (!IsPowerOfTwo(width) || width != height))
{
AssertString( "Trying to get a non square or non power of two RenderBuffer cubemap" );
return NULL;
}
if (antiAliasing < 1 || antiAliasing > 8 || !IsPowerOfTwo(antiAliasing))
{
AssertString( "Trying to get RenderBuffer with invalid antiAliasing (must be 1, 2, 4 or 8)" );
return NULL;
}
// TODO: actually set & check depth
// Go over free textures & find the one that matches in parameters.
// The main point is: If we used a texture of same dims last frame we'll get that.
FreeTextures::iterator found = m_FreeTextures.end();
for( FreeTextures::iterator i = m_FreeTextures.begin(); i != m_FreeTextures.end(); ++i )
{
RenderTexture* rt = i->second;
if( !rt
|| rt->GetDepthFormat() != depthFormat
|| rt->GetColorFormat() != colorFormat
|| rt->GetDimension() != dim
//@TODO: Only matters on OSX as DX can just set sampler state...
|| rt->GetSRGBReadWrite() != sRGB
|| rt->GetAntiAliasing() != antiAliasing
|| rt->GetSampleOnlyDepth() != sampleOnlyDepth )
continue;
int tw = rt->GetWidth();
int th = rt->GetHeight();
if (tw == width && th == height) { // If the texture is same size
found = i;
break;
}
}
// We didn't find any.
if (found == m_FreeTextures.end() || !found->second)
{
m_TempBuffers++;
RenderTexture *tex = NEW_OBJECT (RenderTexture);
tex->Reset();
tex->SetHideFlags(Object::kDontSave);
tex->SetName (Format ("TempBuffer %d", m_TempBuffers).c_str());
tex->SetWidth(width);
tex->SetHeight(height);
tex->SetColorFormat( colorFormat );
tex->SetDepthFormat( depthFormat );
tex->SetDimension (dim);
tex->SetSRGBReadWrite (sRGB);
tex->SetAntiAliasing (antiAliasing);
tex->SetSampleOnlyDepth (sampleOnlyDepth);
tex->AwakeFromLoad(kInstantiateOrCreateFromCodeAwakeFromLoad);
m_TakenTextures.insert (tex);
#if DEBUG_RB_MANAGER
printf_console ("RBM: new texture %ix%i fmt=%i\n", width, height, colorFormat);
#endif
return tex;
}
// We found one. Move it from free to taken
RenderTexture *tex = found->second;
Assert (tex->GetWidth() == width && tex->GetHeight() == height);
m_TakenTextures.insert (tex);
m_FreeTextures.erase (found);
// Set it's parameters (filtering etc.) as if it was newly created
tex->GetSettings().Reset();
tex->GetSettings().m_WrapMode = kTexWrapClamp;
tex->ApplySettings();
tex->SetCreatedFromScript (createdFromScript);
// Automatically DiscardContents when createdFromScript - user can't expect any valid content.
if (createdFromScript)
tex->DiscardContents();
return tex;
}
PROFILER_INFORMATION(gRenderBufferCollect, "RenderTexture.GarbageCollectTemporary", kProfilerRender)
void RenderBufferManager::GarbageCollect (int framesDelay)
{
++m_CurrentRBMFrame;
for (FreeTextures::iterator i = m_FreeTextures.begin(); i != m_FreeTextures.end();)
{
// Should only ever compare the difference since frame wraps around
int frameDiff = m_CurrentRBMFrame - i->first;
if( frameDiff > framesDelay || frameDiff < 0 )
{
PROFILER_AUTO(gRenderBufferCollect, NULL);
#if DEBUG_RB_MANAGER
printf_console ("RBM: kill unused texture (currframe=%i usedframe=%i)\n", m_CurrentRBMFrame, i->first);
#endif
FreeTextures::iterator j = i;
i++;
DestroySingleObject(j->second);
m_FreeTextures.erase (j);
}
else
{
i++;
}
}
}
void RenderBufferManager::Cleanup ()
{
for (TakenTextures::iterator i=m_TakenTextures.begin();i != m_TakenTextures.end();i++)
{
DestroySingleObject(*i);
}
m_TakenTextures.clear();
for (FreeTextures::iterator i=m_FreeTextures.begin();i != m_FreeTextures.end();i++)
{
DestroySingleObject(i->second);
}
m_FreeTextures.clear();
#if DEBUG_RB_MANAGER
printf_console( "RBM: destroy all textures\n" );
#endif
}
void RenderBufferManager::ReleaseTempBuffer (RenderTexture *rTex)
{
if (!rTex)
return;
if (!m_TakenTextures.count (PPtr<RenderTexture> (rTex)))
{
ErrorStringObject ("Attempting to release RenderTexture that were not gotten as a temp buffer", rTex);
return;
}
m_TakenTextures.erase (PPtr<RenderTexture> (rTex));
m_FreeTextures.push_back (make_pair (m_CurrentRBMFrame, PPtr<RenderTexture> (rTex)));
}
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