- Fixed issue with simplified IVideoDriver::setRenderTarget method.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@5074 dfc29bdd-3216-0410-991c-e03cc46cb475

include/IVideoDriver.h

@@ -543,7 +543,7 @@ namespace video
 		\param clearStencilBuffer Clears the stencil buffer of the rendertarget.
 		\param clearColor The clear color for the render target.
 		\return True if sucessful and false if not. */
-		virtual bool setRenderTarget(IRenderTarget* target, core::array<u32> activeTextureID, bool clearBackBuffer,
+		virtual bool setRenderTarget(IRenderTarget* target, const core::array<u32>& activeTextureID, bool clearBackBuffer,
 			bool clearDepthBuffer, bool clearStencilBuffer, SColor clearColor = video::SColor(255,0,0,0)) = 0;
 
 		//! Set a render target.

include/irrArray.h

@@ -33,7 +33,7 @@ public:
 
 	//! Constructs an array and allocates an initial chunk of memory.
 	/** \param start_count Amount of elements to pre-allocate. */
-	array(u32 start_count) : data(0), allocated(0), used(0),
+	explicit array(u32 start_count) : data(0), allocated(0), used(0),
 			strategy(ALLOC_STRATEGY_DOUBLE),
 			free_when_destroyed(true), is_sorted(true)
 	{

source/Irrlicht/CD3D9Driver.cpp

@@ -764,7 +764,7 @@ void CD3D9Driver::setTextureCreationFlag(E_TEXTURE_CREATION_FLAG flag,
 
 
 //! set a render target
-bool CD3D9Driver::setRenderTarget(IRenderTarget* target, core::array<u32> activeTextureID, bool clearBackBuffer,
+bool CD3D9Driver::setRenderTarget(IRenderTarget* target, const core::array<u32>& activeTextureID, bool clearBackBuffer,
 	bool clearDepthBuffer, bool clearStencilBuffer, SColor clearColor)
 {
 	if (target && target->getDriverType() != EDT_DIRECT3D9)

source/Irrlicht/CD3D9Driver.h

@@ -63,7 +63,7 @@ namespace video
 		virtual void setMaterial(const SMaterial& material) _IRR_OVERRIDE_;
 
 		//! set a render target
-		virtual bool setRenderTarget(IRenderTarget* target, core::array<u32> activeTextureID, bool clearBackBuffer,
+		virtual bool setRenderTarget(IRenderTarget* target, const core::array<u32>& activeTextureID, bool clearBackBuffer,
 			bool clearDepthBuffer, bool clearStencilBuffer, SColor clearColor) _IRR_OVERRIDE_;
 
 		//! sets a viewport

source/Irrlicht/CNullDriver.cpp

@@ -83,7 +83,7 @@ IImageWriter* createImageWriterPPM();
 
 //! constructor
 CNullDriver::CNullDriver(io::IFileSystem* io, const core::dimension2d<u32>& screenSize)
-	: TextureRenderTarget(0), CurrentRenderTarget(0), CurrentRenderTargetSize(0, 0), FileSystem(io), MeshManipulator(0),
+	: SharedRenderTarget(0), CurrentRenderTarget(0), CurrentRenderTargetSize(0, 0), FileSystem(io), MeshManipulator(0),
 	ViewPort(0, 0, 0, 0), ScreenSize(screenSize), PrimitivesDrawn(0), MinVertexCountForVBO(500),
 	TextureCreationFlags(0), OverrideMaterial2DEnabled(false), AllowZWriteOnTransparent(false)
 {
@@ -213,9 +213,6 @@ CNullDriver::~CNullDriver()
 	if (MeshManipulator)
 		MeshManipulator->drop();
 
-	if (TextureRenderTarget)
-		TextureRenderTarget->drop();
-
 	removeAllRenderTargets();
 
 	deleteAllTextures();
@@ -296,10 +293,19 @@ void CNullDriver::deleteAllTextures()
 	// last set material member. Could be optimized to reduce state changes.
 	setMaterial(SMaterial());
 
+	// reset render targets.
+
+	for (u32 i=0; i<RenderTargets.size(); ++i)
+		RenderTargets[i]->setTexture(0, 0);
+
+	// remove textures.
+
 	for (u32 i=0; i<Textures.size(); ++i)
 		Textures[i].Surface->drop();
 
 	Textures.clear();
+
+	SharedDepthTextures.clear();
 }
 
 
@@ -621,7 +627,7 @@ ITexture* CNullDriver::createDeviceDependentTexture(IImage* surface, const io::p
 
 
 //! set a render target
-bool CNullDriver::setRenderTarget(IRenderTarget* target, core::array<u32> activeTextureID, bool clearBackBuffer,
+bool CNullDriver::setRenderTarget(IRenderTarget* target, const core::array<u32>& activeTextureID, bool clearBackBuffer,
 	bool clearDepthBuffer, bool clearStencilBuffer, SColor clearColor)
 {
 	return false;
@@ -631,19 +637,37 @@ bool CNullDriver::setRenderTarget(video::ITexture* texture, bool clearBackBuffer
 {
 	if (texture)
 	{
-		if (!TextureRenderTarget)
+		// create render target if require.
+		if (!SharedRenderTarget)
+			SharedRenderTarget = addRenderTarget();
+
+		ITexture* depthTexture = 0;
+
+		// try to find available depth texture with require size.
+		for (u32 i = 0; i < SharedDepthTextures.size(); ++i)
 		{
-			// (there's no createRenderTarget)
-			TextureRenderTarget = addRenderTarget();
-			TextureRenderTarget->grab();
-			removeRenderTarget(TextureRenderTarget);
+			if (SharedDepthTextures[i]->getSize() == texture->getSize())
+			{
+				depthTexture = SharedDepthTextures[i];
+
+				break;
+			}
 		}
 
-		return setRenderTarget(TextureRenderTarget, 0, clearBackBuffer, clearZBuffer, clearZBuffer, color);
+		// create depth texture if require.
+		if (!depthTexture)
+		{
+			depthTexture = addRenderTargetTexture(texture->getSize(), "IRR_DEPTH_STENCIL", video::ECF_D24S8);
+			SharedDepthTextures.push_back(depthTexture);
+		}
+
+		SharedRenderTarget->setTexture(texture, depthTexture);
+
+		return IVideoDriver::setRenderTarget(SharedRenderTarget, 0, clearBackBuffer, clearZBuffer, clearZBuffer, color);
 	}
 	else
 	{
-		return setRenderTarget(NULL, 0, clearBackBuffer, clearZBuffer, clearZBuffer, color);
+		return IVideoDriver::setRenderTarget(NULL, 0, clearBackBuffer, clearZBuffer, false, color);
 	}
 }
 
@@ -1807,6 +1831,8 @@ void CNullDriver::removeAllRenderTargets()
 		RenderTargets[i]->drop();
 
 	RenderTargets.clear();
+
+	SharedRenderTarget = 0;
 }
 
 

source/Irrlicht/CNullDriver.h

@@ -101,7 +101,7 @@ namespace video
 		virtual ITexture* addTexture(const core::dimension2d<u32>& size, const io::path& name, ECOLOR_FORMAT format = ECF_A8R8G8B8) _IRR_OVERRIDE_;
 
 		//! set a render target
-		virtual bool setRenderTarget(IRenderTarget* target, core::array<u32> activeTextureID, bool clearBackBuffer,
+		virtual bool setRenderTarget(IRenderTarget* target, const core::array<u32>& activeTextureID, bool clearBackBuffer,
 			bool clearDepthBuffer, bool clearStencilBuffer, SColor clearColor) _IRR_OVERRIDE_;
 
 		//! set a render target
@@ -809,7 +809,10 @@ namespace video
 		core::array<SOccQuery> OcclusionQueries;
 
 		core::array<IRenderTarget*> RenderTargets;
-		IRenderTarget* TextureRenderTarget;	// A default rendertarget for rendering to single textures.
+
+		// Shared objects used with simplified IVideoDriver::setRenderTarget method with ITexture* param.
+		IRenderTarget* SharedRenderTarget;
+		core::array<ITexture*> SharedDepthTextures;
 
 		IRenderTarget* CurrentRenderTarget;
 		core::dimension2d<u32> CurrentRenderTargetSize;

source/Irrlicht/COpenGLDriver.cpp

@@ -4223,7 +4223,7 @@ u32 COpenGLDriver::getMaximalPrimitiveCount() const
 
 
 //! set a render target
-bool COpenGLDriver::setRenderTarget(IRenderTarget* target, core::array<u32> activeTextureID, bool clearBackBuffer,
+bool COpenGLDriver::setRenderTarget(IRenderTarget* target, const core::array<u32>& activeTextureID, bool clearBackBuffer,
 	bool clearDepthBuffer, bool clearStencilBuffer, SColor clearColor)
 {
 	if (target && target->getDriverType() != EDT_OPENGL)

source/Irrlicht/COpenGLDriver.h

@@ -360,7 +360,7 @@ namespace video
 				const io::path& name, const ECOLOR_FORMAT format = ECF_UNKNOWN) _IRR_OVERRIDE_;
 
 		//! set a render target
-		virtual bool setRenderTarget(IRenderTarget* target, core::array<u32> activeTextureID, bool clearBackBuffer,
+		virtual bool setRenderTarget(IRenderTarget* target, const core::array<u32>& activeTextureID, bool clearBackBuffer,
 			bool clearDepthBuffer, bool clearStencilBuffer, SColor clearColor) _IRR_OVERRIDE_;
 
 		//! Clear the color, depth and/or stencil buffers.

source/Irrlicht/CSoftwareDriver.cpp

@@ -260,7 +260,7 @@ ITexture* CSoftwareDriver::createDeviceDependentTexture(IImage* surface, const i
 
 
 //! set a render target
-bool CSoftwareDriver::setRenderTarget(IRenderTarget* target, core::array<u32> activeTextureID, bool clearBackBuffer,
+bool CSoftwareDriver::setRenderTarget(IRenderTarget* target, const core::array<u32>& activeTextureID, bool clearBackBuffer,
 	bool clearDepthBuffer, bool clearStencilBuffer, SColor clearColor)
 {
 	if (target && target->getDriverType() != EDT_SOFTWARE)

source/Irrlicht/CSoftwareDriver.h

@@ -37,7 +37,7 @@ namespace video
 		virtual void setMaterial(const SMaterial& material) _IRR_OVERRIDE_;
 
 		//! set a render target
-		virtual bool setRenderTarget(IRenderTarget* target, core::array<u32> activeTextureID, bool clearBackBuffer,
+		virtual bool setRenderTarget(IRenderTarget* target, const core::array<u32>& activeTextureID, bool clearBackBuffer,
 			bool clearDepthBuffer, bool clearStencilBuffer, SColor clearColor) _IRR_OVERRIDE_;
 
 		//! sets a viewport

source/Irrlicht/CSoftwareDriver2.cpp

@@ -418,7 +418,7 @@ bool CBurningVideoDriver::endScene()
 
 
 //! set a render target
-bool CBurningVideoDriver::setRenderTarget(IRenderTarget* target, core::array<u32> activeTextureID, bool clearBackBuffer,
+bool CBurningVideoDriver::setRenderTarget(IRenderTarget* target, const core::array<u32>& activeTextureID, bool clearBackBuffer,
 	bool clearDepthBuffer, bool clearStencilBuffer, SColor clearColor)
 {
 	if (target && target->getDriverType() != EDT_BURNINGSVIDEO)

source/Irrlicht/CSoftwareDriver2.h

@@ -40,7 +40,7 @@ namespace video
 		virtual void setMaterial(const SMaterial& material) _IRR_OVERRIDE_;
 
 		//! set a render target
-		virtual bool setRenderTarget(IRenderTarget* target, core::array<u32> activeTextureID, bool clearBackBuffer,
+		virtual bool setRenderTarget(IRenderTarget* target, const core::array<u32>& activeTextureID, bool clearBackBuffer,
 			bool clearDepthBuffer, bool clearStencilBuffer, SColor clearColor) _IRR_OVERRIDE_;
 
 		//! sets a viewport