C++ IDirect3DSurface8::Release方法代码示例

void ReplaceBootTexture(IDirect3DTexture8* srcTexture, IDirect3DTexture8* repTexture, UINT width)
{
    IDirect3DSurface8* src = NULL;
    IDirect3DSurface8* dest = NULL;

    RECT destRect;
    RECT srcRect = {0,0,170,256};
    if (width == 512) {
        destRect.top=0; destRect.left=0;
        destRect.bottom=256; destRect.right=170;
    } else {
        destRect.top=0; destRect.left=0;
        destRect.bottom=64; destRect.right=170/4;
    }

    if (SUCCEEDED(srcTexture->GetSurfaceLevel(0, &dest))) {
        if (SUCCEEDED(repTexture->GetSurfaceLevel(0, &src))) {
            // need 3 copies of the boot texture
            for (int i=0; i<3; i++) {
                destRect.left = (width==512) ? (i*170) : (i*170/4);
                destRect.right = (width==512) ? ((i+1)*170) : ((i+1)*170/4);
                if (SUCCEEDED(D3DXLoadSurfaceFromSurface(
                                dest, NULL, &destRect,
                                src, NULL, &srcRect,
                                D3DX_DEFAULT, 0))) {
                } else {
                }
            }
            src->Release();
        }
        dest->Release();
    }
}

//! Regenerates the mip map levels of the texture. Useful after locking and
//! modifying the texture
void CD3D8Texture::regenerateMipMapLevels(void* mipmapData)
{
	if (mipmapData)
	{
		core::dimension2du size = TextureSize;
		u32 level=0;
		do
		{
			if (size.Width>1)
				size.Width /=2;
			if (size.Height>1)
				size.Height /=2;
			++level;
			IDirect3DSurface8* mipSurface = 0;
			HRESULT hr = Texture->GetSurfaceLevel(level, &mipSurface);
			if (FAILED(hr) || !mipSurface)
			{
				os::Printer::log("Could not get mipmap level", ELL_WARNING);
				return;
			}
			D3DSURFACE_DESC mipDesc;
			mipSurface->GetDesc(&mipDesc);
			D3DLOCKED_RECT miplr;

			// lock mipmap surface
			if (FAILED(mipSurface->LockRect(&miplr, NULL, 0)))
			{
				mipSurface->Release();
				os::Printer::log("Could not lock texture", ELL_WARNING);
				return;
			}

			memcpy(miplr.pBits, mipmapData, size.getArea()*getPitch()/TextureSize.Width);
			mipmapData = (u8*)mipmapData+size.getArea()*getPitch()/TextureSize.Width;
			// unlock
			mipSurface->UnlockRect();
			// release
			mipSurface->Release();
		} while (size.Width != 1 || size.Height != 1);
	}
	else if (HasMipMaps)
	{
		// create mip maps.
#ifndef _IRR_USE_D3DXFilterTexture_
		// The D3DXFilterTexture function seems to get linked wrong when
		// compiling with both D3D8 and 9, causing it not to work in the D3D9 device.
		// So mipmapgeneration is replaced with my own bad generation in d3d 8 when
		// compiling with both D3D 8 and 9.
		HRESULT hr  = D3DXFilterTexture(Texture, NULL, D3DX_DEFAULT , D3DX_DEFAULT );
		if (FAILED(hr))
#endif
		createMipMaps();
	}
}

RageSurface* RageDisplay_D3D::CreateScreenshot()
{
#if defined(XBOX)
	return NULL;
#else
	/* Get the back buffer. */
	IDirect3DSurface8* pSurface;
	g_pd3dDevice->GetBackBuffer( 0, D3DBACKBUFFER_TYPE_MONO, &pSurface );

	/* Get the back buffer description. */
	D3DSURFACE_DESC desc;
	pSurface->GetDesc( &desc );

	/* Copy the back buffer into a surface of a type we support. */
	IDirect3DSurface8* pCopy;
	g_pd3dDevice->CreateImageSurface( desc.Width, desc.Height, D3DFMT_A8R8G8B8, &pCopy );

	D3DXLoadSurfaceFromSurface( pCopy, NULL, NULL, pSurface, NULL, NULL, D3DX_DEFAULT, 0 );

	pSurface->Release();

	/* Update desc from the copy. */
	pCopy->GetDesc( &desc );

	D3DLOCKED_RECT lr;

	{
		RECT rect; 
		rect.left = 0;
		rect.top = 0;
		rect.right = desc.Width;
		rect.bottom = desc.Height;
		pCopy->LockRect( &lr, &rect, D3DLOCK_READONLY );
	}

	RageSurface *surface = CreateSurfaceFromPixfmt( FMT_RGBA8, lr.pBits, desc.Width, desc.Height, lr.Pitch);
	ASSERT( surface );

	/* We need to make a copy, since lr.pBits will go away when we call UnlockRect(). */
	RageSurface *SurfaceCopy = 
		CreateSurface( surface->w, surface->h,
			surface->format->BitsPerPixel,
			surface->format->Rmask, surface->format->Gmask,
			surface->format->Bmask, surface->format->Amask );
	RageSurfaceUtils::CopySurface( surface, SurfaceCopy );
	delete surface;

	pCopy->UnlockRect();
	pCopy->Release();

	return SurfaceCopy;
#endif
}

RageSurface* RageDisplay_D3D::CreateScreenshot()
{
	// Get the back buffer.
	IDirect3DSurface8* pSurface;
	g_pd3dDevice->GetBackBuffer( 0, D3DBACKBUFFER_TYPE_MONO, &pSurface );

	// Get the back buffer description.
	D3DSURFACE_DESC desc;
	pSurface->GetDesc( &desc );

	// Copy the back buffer into a surface of a type we support.
	IDirect3DSurface8* pCopy;
	g_pd3dDevice->CreateImageSurface( desc.Width, desc.Height, D3DFMT_A8R8G8B8, &pCopy );
	
	// Aldo_MX: D3DXLoadSurfaceFromSurface requires d3dx8core.h, I replaced it with CopyRects to
	// remove this dependency so its possible to compile SM with any DirectX SDK up to Aug 2007
	D3DXLoadSurfaceFromSurface( pCopy, NULL, NULL, pSurface, NULL, NULL, D3DX_DEFAULT, 0 );
	//g_pd3dDevice->CopyRects( pSurface, NULL, 0, pCopy, NULL );

	pSurface->Release();

	// Update desc from the copy.
	pCopy->GetDesc( &desc );

	D3DLOCKED_RECT lr;

	{
		RECT rect; 
		rect.left = 0;
		rect.top = 0;
		rect.right = desc.Width;
		rect.bottom = desc.Height;
		pCopy->LockRect( &lr, &rect, D3DLOCK_READONLY );
	}

	RageSurface *surface = CreateSurfaceFromPixfmt( PixelFormat_RGBA8, lr.pBits, desc.Width, desc.Height, lr.Pitch);
	ASSERT( surface );

	// We need to make a copy, since lr.pBits will go away when we call UnlockRect().
	RageSurface *SurfaceCopy = 
		CreateSurface( surface->w, surface->h,
			surface->format->BitsPerPixel,
			surface->format->Rmask, surface->format->Gmask,
			surface->format->Bmask, surface->format->Amask );
	RageSurfaceUtils::CopySurface( surface, SurfaceCopy );
	delete surface;

	pCopy->UnlockRect();
	pCopy->Release();

	return SurfaceCopy;
}

static bool d3d8_init_format_backbuffer(IDirect3DDevice8 *device)
{
	IDirect3DSurface8 *backbuffer;
	D3DSURFACE_DESC desc;
	HRESULT hr;

	if (!d3d8_get_window_handle(device))
		return false;

	backbuffer = d3d8_get_backbuffer(device);
	if (!backbuffer)
		return false;

	hr = backbuffer->GetDesc(&desc);
	backbuffer->Release();
	if (FAILED(hr)) {
		hlog_hr("d3d8_init_format_backbuffer: Failed to get "
				"backbuffer descriptor", hr);
		return false;
	}

	data.d3d8_format = desc.Format;
	data.dxgi_format = d3d8_to_dxgi_format(desc.Format);
	data.cx = desc.Width;
	data.cy = desc.Height;

	return true;
}

//! lock function
void* CD3D8Texture::lock(bool readOnly, u32 mipmapLevel)
{
	if (!Texture)
		return 0;

	MipLevelLocked=mipmapLevel;
	HRESULT hr;
	D3DLOCKED_RECT rect;
	if(!IsRenderTarget)
	{
		hr = Texture->LockRect(mipmapLevel, &rect, 0, readOnly?D3DLOCK_READONLY:0);
		if (FAILED(hr))
		{
			os::Printer::log("Could not lock DIRECT3D9 Texture.", ELL_ERROR);
			return 0;
		}
	}
	else
	{
		if (!RTTSurface)
		{
			// Make RTT surface large enough for all miplevels (including 0)
			D3DSURFACE_DESC desc;
			Texture->GetLevelDesc(0, &desc);
			hr = Device->CreateImageSurface(desc.Width, desc.Height, desc.Format, &RTTSurface);
			if (FAILED(hr))
			{
				os::Printer::log("Could not lock DIRECT3D8 Texture.", ELL_ERROR);
				return 0;
			}
		}

		IDirect3DSurface8 *surface = 0;
		hr = Texture->GetSurfaceLevel(mipmapLevel, &surface);
		if (FAILED(hr))
		{
			os::Printer::log("Could not lock DIRECT3D8 Texture.", "Could not get surface.", ELL_ERROR);
			return 0;
		}
		hr = Device->CopyRects(surface, 0, 0, RTTSurface, 0);
		surface->Release();
		if(FAILED(hr))
		{
			os::Printer::log("Could not lock DIRECT3D8 Texture.", "Data copy failed.", ELL_ERROR);
			return 0;
		}
		hr = RTTSurface->LockRect(&rect, 0, readOnly?D3DLOCK_READONLY:0);
		if(FAILED(hr))
		{
			os::Printer::log("Could not lock DIRECT3D8 Texture.", "LockRect failed.", ELL_ERROR);
			return 0;
		}
	}
	return rect.pBits;
}

//! lock function
void* CD3D8Texture::lock(bool readOnly)
{
	if (!Texture)
		return 0;

	HRESULT hr;
	D3DLOCKED_RECT rect;
	if(!IsRenderTarget)
	{
		hr = Texture->LockRect(0, &rect, 0, readOnly?D3DLOCK_READONLY:0);
	}
	else
	{
		D3DSURFACE_DESC desc;
		Texture->GetLevelDesc(0, &desc);
		if (!RTTSurface)
		{
			hr = Device->CreateImageSurface(desc.Width, desc.Height, desc.Format, &RTTSurface);
			if (FAILED(hr))
			{
				os::Printer::log("Could not lock DIRECT3D8 Texture.", ELL_ERROR);
				return 0;
			}
		}

		IDirect3DSurface8 *surface = 0;
		hr = Texture->GetSurfaceLevel(0, &surface);
		if (FAILED(hr))
		{
			os::Printer::log("Could not lock DIRECT3D8 Texture.", ELL_ERROR);
			return 0;
		}
		hr = Device->CopyRects(surface, 0, 0, RTTSurface, 0);
		surface->Release();
		if(FAILED(hr))
		{
			os::Printer::log("Could not lock DIRECT3D8 Texture.", ELL_ERROR);
			return 0;
		}
		hr = RTTSurface->LockRect(&rect, 0, readOnly?D3DLOCK_READONLY:0);
		if(FAILED(hr))
		{
			os::Printer::log("Could not lock DIRECT3D8 Texture.", ELL_ERROR);
			return 0;
		}
		return rect.pBits;
	}
	if (FAILED(hr))
	{
		os::Printer::log("Could not lock DIRECT3D8 Texture.", ELL_ERROR);
		return 0;
	}

	return rect.pBits;
}

void ReplaceTextureLevel(IDirect3DTexture8* srcTexture, IDirect3DTexture8* repTexture, UINT level)
{
    IDirect3DSurface8* src = NULL;
    IDirect3DSurface8* dest = NULL;

    if (SUCCEEDED(srcTexture->GetSurfaceLevel(level, &dest))) {
        if (SUCCEEDED(repTexture->GetSurfaceLevel(level, &src))) {
            //DumpTexture(srcTexture);
            if (SUCCEEDED(D3DXLoadSurfaceFromSurface(
                            dest, NULL, NULL,
                            src, NULL, NULL,
                            D3DX_DEFAULT, 0))) {
                //LogWithNumber(&k_boot,"ReplaceTextureLevel: replacing level %d COMPLETE", level);

            } else {
                //LogWithNumber(&k_boot,"ReplaceTextureLevel: replacing level %d FAILED", level);
            }
            src->Release();
        }
        dest->Release();
    }
}

void CD3D8Texture::createRenderTarget()
{
	TextureSize.Width = getTextureSizeFromSurfaceSize(TextureSize.Width);
	TextureSize.Height = getTextureSizeFromSurfaceSize(TextureSize.Height);

	// get backbuffer format to create the render target in the
	// same format

	IDirect3DSurface8* bb;
	D3DFORMAT d3DFormat = D3DFMT_A8R8G8B8;

	if (!FAILED(Device->GetBackBuffer(0, D3DBACKBUFFER_TYPE_MONO, &bb)))
	{
		D3DSURFACE_DESC desc;
		bb->GetDesc(&desc);
		d3DFormat = desc.Format;

		if (d3DFormat == D3DFMT_X8R8G8B8)
			d3DFormat = D3DFMT_A8R8G8B8;

		bb->Release();
	}
	else
	{
		os::Printer::log("Could not create RenderTarget texture: could not get BackBuffer.",
			ELL_WARNING);
		return;
	}

	// create texture
	HRESULT hr;

	hr = Device->CreateTexture(
		TextureSize.Width,
		TextureSize.Height,
		1, // mip map level count, we don't want mipmaps here
		D3DUSAGE_RENDERTARGET,
		d3DFormat,
		D3DPOOL_DEFAULT,
		&Texture);

	// get irrlicht format from D3D format
	ColorFormat = getColorFormatFromD3DFormat(d3DFormat);

	if (FAILED(hr))
		os::Printer::log("Could not create render target texture");
}

static HRESULT STDMETHODCALLTYPE hook_present(IDirect3DDevice8 *device,
		CONST RECT *src_rect, CONST RECT *dst_rect,
		HWND override_window, CONST RGNDATA *dirty_region)
{
	IDirect3DSurface8 *backbuffer;
	HRESULT hr;

	backbuffer = d3d8_get_backbuffer(device);
	if (backbuffer) {
		d3d8_capture(device, backbuffer);
		backbuffer->Release();
	}

	unhook(&present);
	present_t call = (present_t)present.call_addr;
	hr = call(device, src_rect, dst_rect, override_window, dirty_region);
	rehook(&present);

	return hr;
}

// The D3DXFilterTexture function seems to get linked wrong when
// compiling with both D3D8 and 9, causing it not to work in the D3D9 device.
// So mipmapgeneration is replaced with my own bad generation in d3d 8 when
// compiling with both D3D 8 and 9.
bool CD3D8Texture::createMipMaps(u32 level)
{
	if (level==0)
		return true;

	IDirect3DSurface8* upperSurface = 0;
	IDirect3DSurface8* lowerSurface = 0;

	// get upper level
	HRESULT hr = Texture->GetSurfaceLevel(level-1, &upperSurface);
	if (FAILED(hr) || !upperSurface)
	{
		os::Printer::log("Could not get upper surface level for mip map generation", ELL_WARNING);
		return false;
	}

	// get lower level
	hr = Texture->GetSurfaceLevel(level, &lowerSurface);
	if (FAILED(hr) || !lowerSurface)
	{
		os::Printer::log("Could not get lower surface level for mip map generation", ELL_WARNING);
		upperSurface->Release();
		return false;
	}

	D3DSURFACE_DESC upperDesc, lowerDesc;
	upperSurface->GetDesc(&upperDesc);
	lowerSurface->GetDesc(&lowerDesc);

	D3DLOCKED_RECT upperlr;
	D3DLOCKED_RECT lowerlr;

	// lock upper surface
	if (FAILED(upperSurface->LockRect(&upperlr, NULL, 0)))
	{
		os::Printer::log("Could not lock upper texture for mip map generation", ELL_WARNING);
		upperSurface->Release();
		lowerSurface->Release();
		return false;
	}

	// lock lower surface
	if (FAILED(lowerSurface->LockRect(&lowerlr, NULL, 0)))
	{
		os::Printer::log("Could not lock lower texture for mip map generation", ELL_WARNING);
		upperSurface->UnlockRect();
		upperSurface->Release();
		lowerSurface->Release();
		return false;
	}

	if (upperDesc.Format != lowerDesc.Format)
	{
		os::Printer::log("Cannot copy mip maps with different formats.", ELL_WARNING);
	}
	else
	{
		if (upperDesc.Format == D3DFMT_A1R5G5B5)
			copy16BitMipMap((char*)upperlr.pBits, (char*)lowerlr.pBits,
							lowerDesc.Width, lowerDesc.Height,
							upperlr.Pitch, lowerlr.Pitch);
		else
		if (upperDesc.Format == D3DFMT_A8R8G8B8)
			copy32BitMipMap((char*)upperlr.pBits, (char*)lowerlr.pBits,
							lowerDesc.Width, lowerDesc.Height,
							upperlr.Pitch, lowerlr.Pitch);
		else
			os::Printer::log("Unsupported mipmap format, cannot copy.", ELL_WARNING);
	}

	bool result=true;
	// unlock
	if (FAILED(upperSurface->UnlockRect()))
		result=false;
	if (FAILED(lowerSurface->UnlockRect()))
		result=false;

	// release
	upperSurface->Release();
	lowerSurface->Release();

	if (!result || upperDesc.Width < 3 || upperDesc.Height < 3)
		return result; // stop generating levels

	// generate next level
	return createMipMaps(level+1);
}