//! 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();
}
}
//! constructor
CD3D9Texture::CD3D9Texture(IImage* image, CD3D9Driver* driver,
u32 flags, const char* name)
: ITexture(name), Image(image), Texture(0), RTTSurface(0), Driver(driver),
TextureSize(0,0), ImageSize(0,0), Pitch(0),
HasMipMaps(false), HardwareMipMaps(false), IsRenderTarget(false)
{
#ifdef _DEBUG
setDebugName("CD3D9Texture");
#endif
const bool generateMipLevels = Driver->getTextureCreationFlag(video::ETCF_CREATE_MIP_MAPS);
Device=driver->getExposedVideoData().D3D9.D3DDev9;
if (Device)
Device->AddRef();
if (Image)
{
Image->grab();
if (createTexture(flags))
{
if (copyTexture() && generateMipLevels)
{
// create mip maps.
#ifdef _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
HRESULT hr = D3DXFilterTexture(Texture, NULL, D3DX_DEFAULT, D3DX_DEFAULT);
if (FAILED(hr))
os::Printer::log("Could not create direct3d mip map levels.", ELL_WARNING);
else
HasMipMaps = true;
#else
createMipMaps();
HasMipMaps = true;
#endif
}
}
else
os::Printer::log("Could not create DIRECT3D9 Texture.", ELL_WARNING);
}
}
// 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);
}
//! Regenerates the mip map levels of the texture. Useful after locking and
//! modifying the texture
void CD3D8Texture::regenerateMipMapLevels()
{
if (HasMipMaps)
createMipMaps();
}
