//loads the data from a stream in to a texture object.
private static void InternalDDSFromStream(Stream stream, Device device, int streamOffset, bool loadMipMap, int offsetMipMaps, out SharpDX.Direct3D9.Texture texture)
{
stream.Position = 0;
if (offsetMipMaps == 0)
{
texture = SharpDX.Direct3D9.Texture.FromStream(device, stream, 0, 0, 0, Usage.None, Format.Unknown, Pool.Default, Filter.None, Filter.None, 0);
}
else
{
texture = SharpDX.Direct3D9.Texture.FromStream(device, stream, 0, 0, 0, Usage.Dynamic, Format.Unknown, Pool.Default, Filter.None, Filter.None, 0);
int width = MipMapSize(offsetMipMaps, texture.GetLevelDescription(0).Width);
int height = MipMapSize(offsetMipMaps, texture.GetLevelDescription(0).Height);
int maxLevels = Math.Min(MaxMipMapLevels(width), MaxMipMapLevels(height));
int actualLevels = Math.Min(maxLevels, texture.LevelCount - offsetMipMaps);
Format format = texture.GetLevelDescription(0).Format;
Texture offsetedTexture = new Texture(device, width, height, actualLevels, Usage.Dynamic, format, Pool.Default);
for (int i = offsetMipMaps, j = 0; j < actualLevels; i++, j++)
{
int levelWidth = MipMapSize(j, width);
int levelHeight = MipMapSize(j, height);
SharpDX.DataStream ds;
texture.LockRectangle(i, LockFlags.ReadOnly, out ds);
texture.UnlockRectangle(i);
SharpDX.DataStream ds2;
offsetedTexture.LockRectangle(j, LockFlags.None, out ds2);
ds2.Position = 0;
ds2.Write(ds.DataPointer, 0, (int)MipMapSizeInBytes(levelWidth, levelHeight, format));
offsetedTexture.UnlockRectangle(j);
}
texture.Dispose();
texture = offsetedTexture;
}
}
private static void InternalDDSFromStream(Stream stream, Device device, int streamOffset, bool loadMipMap, int offsetMipMaps, out SharpDX.Direct3D9.Texture texture)
{
var fileStream = stream as FileStream;
byte[] data = fileStream != null ? null : SharpDX.Utilities.ReadStream(stream);
int maxTextureDimension = MyRender.GraphicsDevice.Capabilities.MaxTextureWidth;
if (IntPtr.Size == 4 || MyRender.GraphicsDevice.AvailableTextureMemory < 1024 * 1024 * 600)
{
maxTextureDimension = 2048;
}
ImageInformation imageInfo;
if (fileStream != null)
{
//imageInfo = GetImageInfoFromFileW(fileStream.Name);
imageInfo = (ImageInformation)GetImageInfoFromFileWMethodInfo.Invoke(null, new object[] { fileStream.Name });
}
else
{
imageInfo = ImageInformation.FromMemory(data);
}
var textureWidth = imageInfo.Width;
var textureHeight = imageInfo.Height;
textureWidth = Math.Max(1, textureWidth >> offsetMipMaps);
textureHeight = Math.Max(1, textureHeight >> offsetMipMaps);
int loadMipmapOffset = offsetMipMaps;
while (textureWidth > maxTextureDimension || textureHeight > maxTextureDimension)
{
loadMipmapOffset++;
textureWidth = Math.Max(1, textureWidth >> 1);
textureHeight = Math.Max(1, textureHeight >> 1);
}
if (offsetMipMaps == 0 && loadMipmapOffset == 0)
{
if (fileStream != null)
{
texture = SharpDX.Direct3D9.Texture.FromFile(device, fileStream.Name, 0, 0, 0, Usage.None, Format.Unknown, Pool.Default, Filter.None, Filter.Linear, 0);
}
else
{
texture = SharpDX.Direct3D9.Texture.FromMemory(device, data, 0, 0, 0, Usage.None, Format.Unknown, Pool.Default, Filter.None, Filter.Linear, 0);
}
}
else if (loadMipmapOffset > 0)
{
var skipFilter = (Filter)D3DXSkipDDSMipLevels((uint)loadMipmapOffset);
if (fileStream != null)
{
texture = SharpDX.Direct3D9.Texture.FromFile(device, fileStream.Name, 0, 0, 0, Usage.None, Format.Unknown, Pool.Default, Filter.None, skipFilter, 0);
}
else
{
texture = SharpDX.Direct3D9.Texture.FromMemory(device, data, 0, 0, 0, Usage.None, Format.Unknown, Pool.Default, Filter.None, skipFilter, 0);
}
}
else
{
if (fileStream != null)
{
texture = SharpDX.Direct3D9.Texture.FromFile(device, fileStream.Name, 0, 0, 0, Usage.None, Format.Unknown, Pool.Default, Filter.None, Filter.None, 0);
}
else
{
texture = SharpDX.Direct3D9.Texture.FromMemory(device, data, 0, 0, 0, Usage.None, Format.Unknown, Pool.Default, Filter.None, Filter.None, 0);
}
int width = MipMapSize(offsetMipMaps, texture.GetLevelDescription(0).Width);
int height = MipMapSize(offsetMipMaps, texture.GetLevelDescription(0).Height);
int maxLevels = Math.Min(MaxMipMapLevels(width), MaxMipMapLevels(height));
int actualLevels = Math.Min(maxLevels, texture.LevelCount - offsetMipMaps);
Format format = texture.GetLevelDescription(0).Format;
Texture offsetedTexture = new Texture(device, width, height, actualLevels, Usage.Dynamic, format, Pool.Default);
for (int i = offsetMipMaps, j = 0; j < actualLevels; i++, j++)
{
int levelWidth = MipMapSize(j, width);
int levelHeight = MipMapSize(j, height);
SharpDX.DataStream ds;
texture.LockRectangle(i, LockFlags.ReadOnly, out ds);
texture.UnlockRectangle(i);
SharpDX.DataStream ds2;
offsetedTexture.LockRectangle(j, LockFlags.None, out ds2);
ds2.Position = 0;
ds2.Write(ds.DataPointer, 0, (int)MipMapSizeInBytes(levelWidth, levelHeight, format));
offsetedTexture.UnlockRectangle(j);
}
texture.Dispose();
texture = offsetedTexture;
}
}