View source: PVR

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[[Category:Shenmue]]
[[Category:Shenmue II]]
[[Category:Files]]
[[Category:Textures]]
The PVR file is an custom PowerVR image format for the Sega Dreamcast.

===GBIX===
The GBIX (Global Index) section is optional and not always present.
* The Global Index is a unique number that is assigned to all textures.
* Texture duplication is checked by comparing the Global Index numbers.
* The Global Index is stored in a texture file.

{| class="wikitable"
|-
! Position !! Length !! Type !! Description 
|-
| 0x00 || 0x04 || string || Identifier (GBIX)
|-
| 0x04 || 0x04 || uint || Size in bytes
|-
| 0x08 || 0x0? || uint || Global indices
|}

===PVRT===
{| class="wikitable"
|-
! Position !! Length !! Type !! Description 
|-
| 0x00 || 0x04 || string || Identifier (PVRT)
|-
| 0x04 || 0x04 || uint || Size in bytes of PVR file after this
|-
| 0x08 || 0x01 || byte || Pixel format
|-
| 0x09 || 0x01 || byte || Data format
|-
| 0x0A || 0x02 || ? || Reserved
|-
| 0x0C || 0x02 || ushort || Image width
|-
| 0x0E || 0x02 || ushort || Image height
|}

====Pixel formats====
{| class="wikitable"
|-
! Value !! Description 
|-
| 0x01 || ARGB1555
|-
| 0x02 || RGB565
|-
| 0x03 || ARGB4444
|-
| 0x04 || YUV442
|-
| 0x05 || Bump
|-
| 0x06 || Bit4
|-
| 0x07 || Bit8
|-
| 0x80 || DDS_RGB24
|-
| 0x81 || DDS_RGBA32 
|}

====Data formats====
{| class="wikitable"
|-
! Value !! Description 
|-
| 0x01 || SQUARE_TWIDDLED
|-
| 0x02 || SQUARE_TWIDDLED_MIPMAP 
|-
| 0x03 || VQ 
|-
| 0x04 || VQ_MIPMAP 
|-
| 0x05 || CLUT_TWIDDLED_8BIT 
|-
| 0x06 || CLUT_TWIDDLED_4BIT 
|-
| 0x07 || DIRECT_TWIDDLED_8BIT 
|-
| 0x08 || DIRECT_TWIDDLED_4BIT 
|-
| 0x09 || RECTANGLE 
|-
| 0x0B || RECTANGULAR_STRIDE 
|-
| 0x0D || RECTANGULAR_TWIDDLED
|-
| 0x10 || SMALL_VQ
|-
| 0x11 || SMALL_VQ_MIPMAP 
|-
| 0x12 || SQUARE_TWIDDLED_MIPMAP_2 
|}