128 lines
3.6 KiB
C
128 lines
3.6 KiB
C
/****************************************************************************
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Copyright (c) 2011-2013,WebJet Business Division,CYOU
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http://www.genesis-3d.com.cn
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#ifndef __PVRTC_Header_H__
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#define __PVRTC_Header_H__
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#if __VC__
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#pragma pack (push, 1)
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#else
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#pragma pack (1)
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#endif
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const uint32 PVR_MAGIC = FOURCC('P', 'V', 'R', '!');
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#define PVR_TEXTURE_FLAG_TYPE_MASK 0xff
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enum EPVRTColourSpace
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{
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ePVRTCSpacelRGB,
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ePVRTCSpacesRGB
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};
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//Compressed pixel formats
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enum EPVRTPixelFormat
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{
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ePVRTPF_PVRTCI_2bpp_RGB,
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ePVRTPF_PVRTCI_2bpp_RGBA,
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ePVRTPF_PVRTCI_4bpp_RGB,
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ePVRTPF_PVRTCI_4bpp_RGBA,
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ePVRTPF_PVRTCII_2bpp,
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ePVRTPF_PVRTCII_4bpp,
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ePVRTPF_ETC1,
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ePVRTPF_DXT1,
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ePVRTPF_DXT2,
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ePVRTPF_DXT3,
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ePVRTPF_DXT4,
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ePVRTPF_DXT5,
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//These formats are identical to some DXT formats.
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ePVRTPF_BC1 = ePVRTPF_DXT1,
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ePVRTPF_BC2 = ePVRTPF_DXT3,
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ePVRTPF_BC3 = ePVRTPF_DXT5,
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//These are currently unsupported:
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ePVRTPF_BC4,
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ePVRTPF_BC5,
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ePVRTPF_BC6,
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ePVRTPF_BC7,
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ePVRTPF_UYVY,
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ePVRTPF_YUY2,
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ePVRTPF_BW1bpp,
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ePVRTPF_SharedExponentR9G9B9E5,
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ePVRTPF_RGBG8888,
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ePVRTPF_GRGB8888,
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ePVRTPF_ETC2_RGB,
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ePVRTPF_ETC2_RGBA,
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ePVRTPF_ETC2_RGB_A1,
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ePVRTPF_EAC_R11_Unsigned,
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ePVRTPF_EAC_R11_Signed,
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ePVRTPF_EAC_RG11_Unsigned,
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ePVRTPF_EAC_RG11_Signed,
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ePVRTPF_NumCompressedPFs
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};
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typedef struct _PVRTCTexHeader
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{
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uint32 headerLength;
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uint32 height;
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uint32 width;
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uint32 numMipmaps;
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uint32 flags;
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uint32 dataLength;
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uint32 bpp;
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uint32 bitmaskRed;
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uint32 bitmaskGreen;
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uint32 bitmaskBlue;
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uint32 bitmaskAlpha;
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uint32 pvrTag;
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uint32 numSurfs;
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} PVRTCTexHeader;
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typedef struct New_PVRTCTexHeader
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{
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uint32 u32Version; //Version of the file header, used to identify it.
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uint32 u32Flags; //Various format flags.
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uint64 u64PixelFormat; //The pixel format, 8cc value storing the 4 channel identifiers and their respective sizes.
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uint32 u32ColourSpace; //The Colour Space of the texture, currently either linear RGB or sRGB.
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uint32 u32ChannelType; //Variable type that the channel is stored in. Supports signed/unsigned int/short/byte or float for now.
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uint32 u32Height; //Height of the texture.
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uint32 u32Width; //Width of the texture.
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uint32 u32Depth; //Depth of the texture. (Z-slices)
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uint32 u32NumSurfaces; //Number of members in a Texture Array.
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uint32 u32NumFaces; //Number of faces in a Cube Map. Maybe be a value other than 6.
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uint32 u32MIPMapCount; //Number of MIP Maps in the texture - NB: Includes top level.
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uint32 u32MetaDataSize; //Size of the accompanying meta data.
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} New_PVRTCTexHeader;
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#if __VC__
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#pragma pack (pop)
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#else
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#pragma pack ()
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#endif
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#endif // __PVRTC_Header_H__
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