- Burningvideo: repaired MipMap Selection

- renamed private Driver function name getTextureSizeFromImageSize to
  getTextureSizeFromSurfaceSize ( now equal in all drivers )


git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@1143 dfc29bdd-3216-0410-991c-e03cc46cb475

changes.txt

+30.12.2006 TA
+	Minor:
+		- Burningvideo: MipMap Selection
+		- renamed private Driver function getTextureSizeFromImageSize to getTextureSizeFromSurfaceSize
 -------------------------------------------
 Changes in version 1.5 (... 2008)
 

source/Irrlicht/CD3D8Texture.cpp

@@ -124,8 +124,8 @@ bool CD3D8Texture::createTexture(u32 flags)
 		optSize=ImageSize;
 	else
 	{
-		optSize.Width = getTextureSizeFromImageSize(ImageSize.Width);
-		optSize.Height = getTextureSizeFromImageSize(ImageSize.Height);
+		optSize.Width = getTextureSizeFromSurfaceSize(ImageSize.Width);
+		optSize.Height = getTextureSizeFromSurfaceSize(ImageSize.Height);
 	}
 
 	HRESULT hr;
@@ -309,7 +309,7 @@ const core::dimension2d<s32>& CD3D8Texture::getSize() const
 
 
 //! returns the size of a texture which would be the optimize size for rendering it
-inline s32 CD3D8Texture::getTextureSizeFromImageSize(s32 size) const
+inline s32 CD3D8Texture::getTextureSizeFromSurfaceSize(s32 size) const
 {
 	s32 ts = 0x01;
 
@@ -559,8 +559,8 @@ void CD3D8Texture::copy32BitMipMap(char* src, char* tgt,
 
 void CD3D8Texture::createRenderTarget()
 {
-	TextureSize.Width = getTextureSizeFromImageSize(TextureSize.Width);
-	TextureSize.Height = getTextureSizeFromImageSize(TextureSize.Height);
+	TextureSize.Width = getTextureSizeFromSurfaceSize(TextureSize.Width);
+	TextureSize.Height = getTextureSizeFromSurfaceSize(TextureSize.Height);
 
 	// get backbuffer format to create the render target in the
 	// same format

source/Irrlicht/CD3D8Texture.h

@@ -78,7 +78,7 @@ private:
 	void createRenderTarget();
 
 	//! returns the size of a texture which would be the optimize size for rendering it
-	inline s32 getTextureSizeFromImageSize(s32 size) const;
+	inline s32 getTextureSizeFromSurfaceSize(s32 size) const;
 
 	//! creates the hardware texture
 	bool createTexture(u32 flags);

source/Irrlicht/CD3D9Texture.cpp

@@ -108,8 +108,8 @@ CD3D9Texture::~CD3D9Texture()
 
 void CD3D9Texture::createRenderTarget()
 {
-	TextureSize.Width = getTextureSizeFromImageSize(TextureSize.Width);
-	TextureSize.Height = getTextureSizeFromImageSize(TextureSize.Height);
+	TextureSize.Width = getTextureSizeFromSurfaceSize(TextureSize.Width);
+	TextureSize.Height = getTextureSizeFromSurfaceSize(TextureSize.Height);
 
 	// get backbuffer format to create the render target in the
 	// same format
@@ -263,8 +263,8 @@ bool CD3D9Texture::createTexture(u32 flags, IImage * image)
 		optSize=ImageSize;
 	else
 	{
-		optSize.Width = getTextureSizeFromImageSize(ImageSize.Width);
-		optSize.Height = getTextureSizeFromImageSize(ImageSize.Height);
+		optSize.Width = getTextureSizeFromSurfaceSize(ImageSize.Width);
+		optSize.Height = getTextureSizeFromSurfaceSize(ImageSize.Height);
 	}
 
 	HRESULT hr;
@@ -510,7 +510,7 @@ const core::dimension2d<s32>& CD3D9Texture::getSize() const
 
 
 //! returns the size of a texture which would be the optimize size for rendering it
-inline s32 CD3D9Texture::getTextureSizeFromImageSize(s32 size) const
+inline s32 CD3D9Texture::getTextureSizeFromSurfaceSize(s32 size) const
 {
 	s32 ts = 0x01;
 

source/Irrlicht/CD3D9Texture.h

@@ -77,7 +77,7 @@ private:
 	void createRenderTarget();
 
 	//! returns the size of a texture which would be the optimize size for rendering it
-	inline s32 getTextureSizeFromImageSize(s32 size) const;
+	inline s32 getTextureSizeFromSurfaceSize(s32 size) const;
 
 	//! creates the hardware texture
 	bool createTexture(u32 flags, IImage * image);

source/Irrlicht/CSoftwareDriver2.cpp

@@ -762,19 +762,12 @@ inline f32 CBurningVideoDriver::screenarea ( const s4DVertex *v ) const
 */
 inline f32 CBurningVideoDriver::texelarea ( const s4DVertex *v, int tex ) const
 {
-	f32 x0,y0, x1,y1, z;
-
-	x0 = v[2].Tex[tex].x - v[0].Tex[tex].x;
-	y0 = v[2].Tex[tex].y - v[0].Tex[tex].y;
-	x1 = v[4].Tex[tex].x - v[0].Tex[tex].x;
-	y1 = v[4].Tex[tex].y - v[0].Tex[tex].y;
+	f32 z;
 
-	z = x0*y1 - x1*y0;
+	z =		( (v[2].Tex[tex].x - v[0].Tex[tex].x ) * (v[4].Tex[tex].y - v[0].Tex[tex].y ) )
+		 -	( (v[4].Tex[tex].x - v[0].Tex[tex].x ) * (v[2].Tex[tex].y - v[0].Tex[tex].y ) );
 
-	const core::dimension2d<s32> &d = MAT_TEXTURE ( tex )->getMaxMipMapSize ();
-	z *= d.Height;
-	z *= d.Width;
-	return z;
+	return MAT_TEXTURE ( tex )->getLODFactor ( z );
 }
 
 /*!
@@ -791,22 +784,13 @@ inline f32 CBurningVideoDriver::screenarea2 ( const s4DVertex **v ) const
 inline f32 CBurningVideoDriver::texelarea2 ( const s4DVertex **v, s32 tex ) const
 {
 	f32 z;
+	z =		( (v[1]->Tex[tex].x - v[0]->Tex[tex].x ) * (v[2]->Tex[tex].y - v[0]->Tex[tex].y ) )
+		 -	( (v[2]->Tex[tex].x - v[0]->Tex[tex].x ) * (v[1]->Tex[tex].y - v[0]->Tex[tex].y ) );
 
-	z =		(v[1]->Tex[tex].x - v[0]->Tex[tex].x ) *
-			(v[2]->Tex[tex].y - v[0]->Tex[tex].y )
-		 -	(v[2]->Tex[tex].x - v[0]->Tex[tex].x ) *
-			(v[1]->Tex[tex].y - v[0]->Tex[tex].y )
-		;
-
-	const core::dimension2d<s32> &d = MAT_TEXTURE ( tex )->getMaxMipMapSize ();
-	z *= d.Height;
-	z *= d.Width;
-	return z;
+	return MAT_TEXTURE ( tex )->getLODFactor ( z );
 }
 
 
-
-
 /*!
 */
 inline void CBurningVideoDriver::select_polygon_mipmap ( s4DVertex *v, u32 vIn, s32 tex )
@@ -1167,8 +1151,11 @@ void CBurningVideoDriver::drawVertexPrimitiveList(const void* vertices, u32 vert
 			}
 
 			dc_area = core::reciprocal ( dc_area );
+
 			// select mipmap
-			for ( g = 0; g != MATERIAL_MAX_TEXTURES; ++g )
+
+			for ( g = 0; g != vSize[VertexCache.vType].TexSize; ++g )
+			//for ( g = 0; g != MATERIAL_MAX_TEXTURES; ++g )
 			{
 				if ( 0 == MAT_TEXTURE ( g ) )
 				{
@@ -1177,7 +1164,6 @@ void CBurningVideoDriver::drawVertexPrimitiveList(const void* vertices, u32 vert
 				}
 
 				lodLevel = s32_log2_f32 ( texelarea2 ( face, g ) * dc_area );
-
 				CurrentShader->setTextureParam(g, MAT_TEXTURE ( g ), lodLevel);
 				select_polygon_mipmap2 ( (s4DVertex**) face, g );
 
@@ -1282,7 +1268,8 @@ void CBurningVideoDriver::drawVertexPrimitiveList(const void* vertices, u32 vert
 			continue;
 
 		// select mipmap
-		for ( g = 0; g != MATERIAL_MAX_TEXTURES; ++g )
+		//for ( g = 0; g != MATERIAL_MAX_TEXTURES; ++g )
+		for ( g = 0; g != vSize[VertexCache.vType].TexSize; ++g )
 		{
 			if ( 0 == MAT_TEXTURE ( g ) )
 			{
@@ -1863,6 +1850,87 @@ u32 CBurningVideoDriver::getMaximalPrimitiveCount() const
 	return 0x00800000;
 }
 
+//! Draws a shadow volume into the stencil buffer. To draw a stencil shadow, do
+//! this: Frist, draw all geometry. Then use this method, to draw the shadow
+//! volume. Then, use IVideoDriver::drawStencilShadow() to visualize the shadow.
+void CBurningVideoDriver::drawStencilShadowVolume(const core::vector3df* triangles, s32 count, bool zfail)
+{
+/*
+	if (!StencilBuffer || !count)
+		return;
+
+	setRenderStatesStencilShadowMode(zfail);
+
+	if (!zfail)
+	{
+		// ZPASS Method
+
+		// Draw front-side of shadow volume in stencil/z only
+		pID3DDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_CCW );
+		pID3DDevice->SetRenderState(D3DRS_STENCILPASS, D3DSTENCILOP_INCRSAT);
+		pID3DDevice->DrawPrimitiveUP(D3DPT_TRIANGLELIST, count / 3, triangles, sizeof(core::vector3df));
+
+		// Now reverse cull order so front sides of shadow volume are written.
+		pID3DDevice->SetRenderState( D3DRS_CULLMODE,   D3DCULL_CW );
+		pID3DDevice->SetRenderState( D3DRS_STENCILPASS, D3DSTENCILOP_DECRSAT);
+		pID3DDevice->DrawPrimitiveUP(D3DPT_TRIANGLELIST, count / 3, triangles, sizeof(core::vector3df));
+	}
+	else
+	{
+		// ZFAIL Method
+
+		// Draw front-side of shadow volume in stencil/z only
+		pID3DDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_CW );
+		pID3DDevice->SetRenderState(D3DRS_STENCILZFAIL, D3DSTENCILOP_INCRSAT );
+		pID3DDevice->DrawPrimitiveUP(D3DPT_TRIANGLELIST, count / 3, triangles, sizeof(core::vector3df));
+
+		// Now reverse cull order so front sides of shadow volume are written.
+		pID3DDevice->SetRenderState( D3DRS_CULLMODE,   D3DCULL_CCW );
+		pID3DDevice->SetRenderState( D3DRS_STENCILZFAIL,  D3DSTENCILOP_DECRSAT );
+		pID3DDevice->DrawPrimitiveUP(D3DPT_TRIANGLELIST, count / 3, triangles, sizeof(core::vector3df));
+	}
+*/
+}
+
+
+
+//! Fills the stencil shadow with color. After the shadow volume has been drawn
+//! into the stencil buffer using IVideoDriver::drawStencilShadowVolume(), use this
+//! to draw the color of the shadow.
+void CBurningVideoDriver::drawStencilShadow(bool clearStencilBuffer, video::SColor leftUpEdge,
+			video::SColor rightUpEdge, video::SColor leftDownEdge, video::SColor rightDownEdge)
+{
+/*
+	if (!StencilBuffer)
+		return;
+
+	S3DVertex vtx[4];
+	vtx[0] = S3DVertex(1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, leftUpEdge, 0.0f, 0.0f);
+	vtx[1] = S3DVertex(1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 0.0f, rightUpEdge, 0.0f, 1.0f);
+	vtx[2] = S3DVertex(-1.0f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, leftDownEdge, 1.0f, 0.0f);
+	vtx[3] = S3DVertex(-1.0f, -1.0f, 0.0f, 0.0f, 0.0f, 0.0f, rightDownEdge, 1.0f, 1.0f);
+
+	s16 indices[6] = {0,1,2,1,3,2};
+
+	setRenderStatesStencilFillMode(
+		leftUpEdge.getAlpha() < 255 ||
+		rightUpEdge.getAlpha() < 255 ||
+		leftDownEdge.getAlpha() < 255 ||
+		rightDownEdge.getAlpha() < 255);
+
+	setTexture(0,0);
+
+	setVertexShader(EVT_STANDARD);
+
+	pID3DDevice->DrawIndexedPrimitiveUP(D3DPT_TRIANGLELIST, 0, 4, 2, &indices[0],
+		D3DFMT_INDEX16, &vtx[0], sizeof(S3DVertex));
+
+	if (clearStencilBuffer)
+		pID3DDevice->Clear( 0, NULL, D3DCLEAR_STENCIL,0, 1.0, 0);
+*/
+}
+
+
 } // end namespace video
 } // end namespace irr
 

source/Irrlicht/CSoftwareDriver2.h

@@ -118,6 +118,21 @@ namespace video
 		//! call.
 		virtual u32 getMaximalPrimitiveCount() const;
 
+		//! Draws a shadow volume into the stencil buffer. To draw a stencil shadow, do
+		//! this: First, draw all geometry. Then use this method, to draw the shadow
+		//! volume. Then, use IVideoDriver::drawStencilShadow() to visualize the shadow.
+		virtual void drawStencilShadowVolume(const core::vector3df* triangles, s32 count, bool zfail);
+
+		//! Fills the stencil shadow with color. After the shadow volume has been drawn
+		//! into the stencil buffer using IVideoDriver::drawStencilShadowVolume(), use this
+		//! to draw the color of the shadow.
+		virtual void drawStencilShadow(bool clearStencilBuffer=false,
+			video::SColor leftUpEdge = video::SColor(0,0,0,0),
+			video::SColor rightUpEdge = video::SColor(0,0,0,0),
+			video::SColor leftDownEdge = video::SColor(0,0,0,0),
+			video::SColor rightDownEdge = video::SColor(0,0,0,0));
+
+
 	protected:
 
 		//! sets a render target

source/Irrlicht/CSoftwareTexture2.cpp

@@ -9,12 +9,15 @@
 #include "SoftwareDriver2_helper.h"
 #include "CSoftwareTexture2.h"
 #include "os.h"
+#include "CImageWriterBMP.h"
 
 namespace irr
 {
 namespace video  
 {
 
+IImageWriter* createImageWriterBMP();
+
 //! constructor
 CSoftwareTexture2::CSoftwareTexture2(IImage* image, const char* name, bool generateMipLevels, bool isRenderTarget)
 : ITexture(name), MipMapLOD(0), HasMipMaps(generateMipLevels), IsRenderTarget(isRenderTarget)
@@ -41,11 +44,13 @@ CSoftwareTexture2::CSoftwareTexture2(IImage* image, const char* name, bool gener
 		}
 		else
 		{
+			os::Printer::log ( "Burningvideo: Warning Texture reformat", ELL_WARNING );
 			MipMap[0] = new CImage(BURNINGSHADER_COLOR_FORMAT, optSize);
 
 			// temporary CImage needed
 			CImage * temp = new CImage ( BURNINGSHADER_COLOR_FORMAT, image );
-			temp->copyToScaling(MipMap[0]);
+			temp->copyToScalingBoxFilter ( MipMap[0], 0 );
+			//temp->copyToScaling(MipMap[0]);
 			temp->drop ();
 		}
 	}
@@ -67,16 +72,17 @@ CSoftwareTexture2::~CSoftwareTexture2()
 
 
 //! returns the size of a texture which would be the optimize size for rendering it
-inline s32 CSoftwareTexture2::getTextureSizeFromSurfaceSize(s32 size) const
+s32 CSoftwareTexture2::getTextureSizeFromSurfaceSize(s32 size) const
 {
 	s32 ts = 0x01;
+
 	while(ts < size)
 		ts <<= 1;
 
-/*
-	if (ts > size && ts > 256 )
+	if ( ts > size )
 		ts >>= 1;
-*/
+
+	//ts = core::s32_min ( ts, 256 );
 	return ts;
 }
 
@@ -105,8 +111,8 @@ void CSoftwareTexture2::regenerateMipMapLevels()
 	while ( i < SOFTWARE_DRIVER_2_MIPMAPPING_MAX )
 	{
 		currentSize = c->getDimension();
-		newSize.Width = core::s32_max ( 1, currentSize.Width >> 1 );
-		newSize.Height = core::s32_max ( 1, currentSize.Height >> 1 );
+		newSize.Width = core::s32_max ( 1, currentSize.Width >> SOFTWARE_DRIVER_2_MIPMAPPING_SCALE );
+		newSize.Height = core::s32_max ( 1, currentSize.Height >> SOFTWARE_DRIVER_2_MIPMAPPING_SCALE );
 
 		MipMap[i] = new CImage(BURNINGSHADER_COLOR_FORMAT, newSize);
 		MipMap[0]->copyToScalingBoxFilter ( MipMap[i], 0 );

source/Irrlicht/CSoftwareTexture2.h

@@ -48,9 +48,9 @@ public:
 	}
 
 	//! Returns the size of the largest mipmap.
-	const core::dimension2d<s32>& getMaxMipMapSize() const
+	f32 getLODFactor( const f32 texArea ) const
 	{
-		return MipMap[0]->getDimension();
+		return MipMap[0]->getImageDataSizeInPixels () * texArea;
 	}
 
 	//! Returns (=size) of the texture.
@@ -116,7 +116,7 @@ public:
 private:
 
 	//! returns the size of a texture which would be the optimize size for rendering it
-	inline s32 getTextureSizeFromSurfaceSize(s32 size) const;
+	s32 getTextureSizeFromSurfaceSize(s32 size) const;
 
 	core::dimension2d<s32> OrigSize;
 

source/Irrlicht/CTRGouraud2.cpp

@@ -256,7 +256,6 @@ void CTRGouraud2::scanline_bilinear ()
 
 void CTRGouraud2::drawTriangle ( const s4DVertex *a,const s4DVertex *b,const s4DVertex *c )
 {
-	return;
 	// sort on height, y
 	if ( a->Pos.y > b->Pos.y ) swapVertexPointer(&a, &b);
 	if ( a->Pos.y > c->Pos.y ) swapVertexPointer(&a, &c);

source/Irrlicht/CTRTextureLightMap2_M4.cpp

@@ -564,7 +564,8 @@ REALINLINE void CTRTextureLightMap2_M4::scanline_bilinear ()
 #endif
 
 
-#ifdef BURNINGVIDEO_RENDERER_FAST
+//#ifdef BURNINGVIDEO_RENDERER_FAST
+#if 1
 
 void CTRTextureLightMap2_M4::drawTriangle ( const s4DVertex *a,const s4DVertex *b,const s4DVertex *c )
 {
@@ -646,7 +647,7 @@ void CTRTextureLightMap2_M4::drawTriangle_Min ( const s4DVertex *a,const s4DVert
 	lockedSurface = (tVideoSample*)RenderTarget->lock();
 
 #ifdef USE_ZBUFFER
-	lockedDepthBuffer = DepthBuffer->lock();
+	lockedDepthBuffer = (fp24*) DepthBuffer->lock();
 #endif
 
 #ifdef IPOL_T0

source/Irrlicht/IBurningShader.cpp

@@ -79,9 +79,6 @@ namespace video
 	{
 		sInternalTexture *it = &IT[stage];
 
-		if ( it->Texture == texture )
-			return;
-
 		if ( it->Texture)
 			it->Texture->drop();
 
@@ -101,8 +98,9 @@ namespace video
 			// prepare for optimal fixpoint
 			it->pitchlog2 = s32_log2_s32 ( it->Texture->getPitch() );
 
-			it->textureXMask = s32_to_fixPoint ( it->Texture->getSize().Width - 1 ) & FIX_POINT_UNSIGNED_MASK;
-			it->textureYMask = s32_to_fixPoint ( it->Texture->getSize().Height - 1 ) & FIX_POINT_UNSIGNED_MASK;
+			const core::dimension2d<s32> &dim = it->Texture->getSize();
+			it->textureXMask = s32_to_fixPoint ( dim.Width - 1 ) & FIX_POINT_UNSIGNED_MASK;
+			it->textureYMask = s32_to_fixPoint ( dim.Height - 1 ) & FIX_POINT_UNSIGNED_MASK;
 			it->data = (tVideoSample*) it->Texture->lock();
 		}
 	}

source/Irrlicht/SoftwareDriver2_compile_config.h

@@ -60,18 +60,18 @@
 // mip mapping
 #ifdef SOFTWARE_DRIVER_2_MIPMAPPING
 	#ifdef BURNINGVIDEO_RENDERER_BEAUTIFUL
-		#define SOFTWARE_DRIVER_2_MIPMAPPING_MAX		4
-		#define SOFTWARE_DRIVER_2_MIPMAPPING_LOD_BIAS	0
-	#else
 		#define SOFTWARE_DRIVER_2_MIPMAPPING_MAX		8
 		#define SOFTWARE_DRIVER_2_MIPMAPPING_LOD_BIAS	-1
+	#else
+		#define SOFTWARE_DRIVER_2_MIPMAPPING_MAX		8
+		#define SOFTWARE_DRIVER_2_MIPMAPPING_LOD_BIAS	0
 	#endif
 #else
 	#define SOFTWARE_DRIVER_2_MIPMAPPING_MAX		1
 	#define SOFTWARE_DRIVER_2_MIPMAPPING_LOD_BIAS	0
 #endif
 
-
+#define SOFTWARE_DRIVER_2_MIPMAPPING_SCALE (8/SOFTWARE_DRIVER_2_MIPMAPPING_MAX)
 
 #ifndef REALINLINE
 	#ifdef _MSC_VER