protected override void init(Stream stream, bool flip, Loader.LoadedCallbackMethod loadedCallback)
{
try
{
ImageType = ImageTypes.PVR;
// Load Header
var header = new PVRHeader();
var reader = new BinaryReader(stream);
// Read header version 2
header.HeaderLength = reader.ReadUInt32();
header.Height = reader.ReadUInt32();
header.Width = reader.ReadUInt32();
header.NumMipmaps = reader.ReadUInt32();
header.Flags = reader.ReadUInt32();
header.DataLength = reader.ReadUInt32();
header.BPP = reader.ReadUInt32();
header.BitmaskRed = reader.ReadUInt32();
header.BitmaskGreen = reader.ReadUInt32();
header.BitmaskBlue = reader.ReadUInt32();
header.BitmaskAlpha = reader.ReadUInt32();
header.PVRTag = reader.ReadUInt32();
header.NumSurfs = reader.ReadUInt32();
// Read header version 3
/*header.Version = reader.ReadUInt32();
* header.Flags = reader.ReadUInt32();
* header.PixelFormat = reader.ReadUInt64();
* header.ColorSpace = reader.ReadUInt32();
* header.ChannelType = reader.ReadUInt32();
* header.Height = reader.ReadUInt32();
* header.Width = reader.ReadUInt32();
* header.Depth = reader.ReadUInt32();
* header.NumSurfaces = reader.ReadUInt32();
* header.NumFaces = reader.ReadUInt32();
* header.MIPMapCount = reader.ReadUInt32();
* header.MetaDataSize = reader.ReadUInt32();
*
* while (stream.Position <= stream.Length)
* {
* if (stream.Position + sizeof(int) > stream.Length) Debug.ThrowError("ImagePVR", "No data ID");
* if (reader.ReadInt32() == Streams.MakeFourCC('P', 'V', 'R', (char)3)) break;
* }
*
* var key = reader.ReadUInt32();
* var dSize = reader.ReadUInt32();*/
// Get Caps
Compressed = true;
// Get pixel format
Size = new Size2((int)header.Width, (int)header.Height);
int blockSize = 0, bpp = 0, blockWidth = 0, blockHeight = 0, blockDev = 1;
//switch (header.PixelFormat)// version 3
switch (header.Flags & PVR_TEXTURE_FLAG_TYPE_MASK)
{
case FOURCC_2BPP_RGB:
FormatGL = GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
blockSize = 8 * 4;
blockWidth = 8;
blockHeight = 4;
bpp = 2;
blockDev = 2;
ImageFormat = ImageFormats.PVR_RGB_2;
SurfaceFormat = SurfaceFormats.PVR_RGB_2;
break;
case FOURCC_2BPP_RGBA:
FormatGL = GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
blockSize = 8 * 4;
blockWidth = 8;
blockHeight = 4;
bpp = 2;
blockDev = 2;
ImageFormat = ImageFormats.PVR_RGBA_2;
SurfaceFormat = SurfaceFormats.PVR_RGBA_2;
break;
case FOURCC_4BPP_RGB:
FormatGL = GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
blockSize = 4 * 4;
blockWidth = 4;
blockHeight = 4;
bpp = 4;
ImageFormat = ImageFormats.PVR_RGB_4;
SurfaceFormat = SurfaceFormats.PVR_RGB_4;
break;
case FOURCC_4BPP_RGBA:
FormatGL = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
blockSize = 4 * 4;
blockWidth = 4;
blockHeight = 4;
bpp = 4;
ImageFormat = ImageFormats.PVR_RGBA_4;
SurfaceFormat = SurfaceFormats.PVR_RGBA_4;
break;
default:
Debug.ThrowError("ImagePVR", "Unsuported PVR Format");
break;
}
// Create Mipmaps
header.NumMipmaps++;
//Mipmaps = new Mipmap[header.MIPMapCount == 0 ? 1 : header.MIPMapCount];// version 3
Mipmaps = new Mipmap[header.NumMipmaps == 0 ? 1 : header.NumMipmaps];
var size = Size;
for (int i = 0; i < Mipmaps.Length; ++i)
{
int width = (size.Width / blockWidth), height = (size.Height / blockHeight);
if (width < 2)
{
width = 2;
}
if (height < 2)
{
height = 2;
}
int dataSize = (width * height) * ((blockSize * bpp) / 8);
var data = new byte[dataSize];
stream.Read(data, 0, dataSize);
Mipmaps[i] = new Mipmap(data, size.Width, size.Height, blockDev, 4);
size /= 2;
}
}
catch (Exception e)
{
FailedToLoad = true;
Loader.AddLoadableException(e);
if (loadedCallback != null)
{
loadedCallback(this, false);
}
return;
}
Loaded = true;
if (loadedCallback != null)
{
loadedCallback(this, true);
}
}
protected override void init(Stream stream, bool flip, Loader.LoadedCallbackMethod loadedCallback)
{
try
{
ImageType = ImageTypes.PVR;
// Load Header
var header = new PVRHeader();
var reader = new BinaryReader(stream);
// Read header version 2
header.HeaderLength = reader.ReadUInt32();
header.Height = reader.ReadUInt32();
header.Width = reader.ReadUInt32();
header.NumMipmaps = reader.ReadUInt32();
header.Flags = reader.ReadUInt32();
header.DataLength = reader.ReadUInt32();
header.BPP = reader.ReadUInt32();
header.BitmaskRed = reader.ReadUInt32();
header.BitmaskGreen = reader.ReadUInt32();
header.BitmaskBlue = reader.ReadUInt32();
header.BitmaskAlpha = reader.ReadUInt32();
header.PVRTag = reader.ReadUInt32();
header.NumSurfs = reader.ReadUInt32();
// Read header version 3
/*header.Version = reader.ReadUInt32();
header.Flags = reader.ReadUInt32();
header.PixelFormat = reader.ReadUInt64();
header.ColorSpace = reader.ReadUInt32();
header.ChannelType = reader.ReadUInt32();
header.Height = reader.ReadUInt32();
header.Width = reader.ReadUInt32();
header.Depth = reader.ReadUInt32();
header.NumSurfaces = reader.ReadUInt32();
header.NumFaces = reader.ReadUInt32();
header.MIPMapCount = reader.ReadUInt32();
header.MetaDataSize = reader.ReadUInt32();
while (stream.Position <= stream.Length)
{
if (stream.Position + sizeof(int) > stream.Length) Debug.ThrowError("ImagePVR", "No data ID");
if (reader.ReadInt32() == Streams.MakeFourCC('P', 'V', 'R', (char)3)) break;
}
var key = reader.ReadUInt32();
var dSize = reader.ReadUInt32();*/
// Get Caps
Compressed = true;
// Get pixel format
Size = new Size2((int)header.Width, (int)header.Height);
int blockSize = 0, bpp = 0, blockWidth = 0, blockHeight = 0, blockDev = 1;
//switch (header.PixelFormat)// version 3
switch (header.Flags & PVR_TEXTURE_FLAG_TYPE_MASK)
{
case FOURCC_2BPP_RGB:
FormatGL = GL_COMPRESSED_RGB_PVRTC_2BPPV1_IMG;
blockSize = 8*4;
blockWidth = 8;
blockHeight = 4;
bpp = 2;
blockDev = 2;
ImageFormat = ImageFormats.PVR_RGB_2;
SurfaceFormat = SurfaceFormats.PVR_RGB_2;
break;
case FOURCC_2BPP_RGBA:
FormatGL = GL_COMPRESSED_RGBA_PVRTC_2BPPV1_IMG;
blockSize = 8*4;
blockWidth = 8;
blockHeight = 4;
bpp = 2;
blockDev = 2;
ImageFormat = ImageFormats.PVR_RGBA_2;
SurfaceFormat = SurfaceFormats.PVR_RGBA_2;
break;
case FOURCC_4BPP_RGB:
FormatGL = GL_COMPRESSED_RGB_PVRTC_4BPPV1_IMG;
blockSize = 4*4;
blockWidth = 4;
blockHeight = 4;
bpp = 4;
ImageFormat = ImageFormats.PVR_RGB_4;
SurfaceFormat = SurfaceFormats.PVR_RGB_4;
break;
case FOURCC_4BPP_RGBA:
FormatGL = GL_COMPRESSED_RGBA_PVRTC_4BPPV1_IMG;
blockSize = 4*4;
blockWidth = 4;
blockHeight = 4;
bpp = 4;
ImageFormat = ImageFormats.PVR_RGBA_4;
SurfaceFormat = SurfaceFormats.PVR_RGBA_4;
break;
default:
Debug.ThrowError("ImagePVR", "Unsuported PVR Format");
break;
}
// Create Mipmaps
header.NumMipmaps++;
//Mipmaps = new Mipmap[header.MIPMapCount == 0 ? 1 : header.MIPMapCount];// version 3
Mipmaps = new Mipmap[header.NumMipmaps == 0 ? 1 : header.NumMipmaps];
var size = Size;
for (int i = 0; i < Mipmaps.Length; ++i)
{
int width = (size.Width/blockWidth), height = (size.Height/blockHeight);
if (width < 2) width = 2;
if (height < 2) height = 2;
int dataSize = (width * height) * ((blockSize * bpp) / 8);
var data = new byte[dataSize];
stream.Read(data, 0, dataSize);
Mipmaps[i] = new Mipmap(data, size.Width, size.Height, blockDev, 4);
size /= 2;
}
}
catch (Exception e)
{
FailedToLoad = true;
Loader.AddLoadableException(e);
if (loadedCallback != null) loadedCallback(this, false);
return;
}
Loaded = true;
if (loadedCallback != null) loadedCallback(this, true);
}
