Exemplos de Texture::GetLevelDesc em C++ (Cpp)

Exemplo n.º 1

Arquivo: moo_dx.cpp Projeto: siredblood/tree-bumpkin-project

uint32 DX::textureSize( const Texture *constTexture )
{
	BW_GUARD;
	if (constTexture == NULL)
		return 0;

	// The operations on the texture are really const operations
	Texture *texture = const_cast<Texture *>(constTexture);

	// Determine the mip-map texture size scaling factor
	double mipmapScaler = ( 4 - pow(0.25, (double)texture->GetLevelCount() - 1 ) ) / 3;

	// Get a surface to determine the width, height, and format
	D3DSURFACE_DESC surfaceDesc;
	texture->GetLevelDesc(0, &surfaceDesc);

	// Get the surface size
	uint32 surfaceSize = DX::surfaceSize(surfaceDesc);

	// Track memory usage
	return (uint32)(surfaceSize * mipmapScaler);
}