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− | This page describes the [[GPU_Commands|GPU commands]] used for textures. | + | This page is obsolete, see [[GPU/Internal_Registers|here]] for GPU register information, including that of textures. |
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− | == Command set 0x809F0081 ==
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− | {| class="wikitable" border="1"
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− | ! Command Index
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− | ! CommandID
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− | ! Parameter
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− | ! Description
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− | |-
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− | | 0
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− | | 0x809F0081
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− | |
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− | | This is used to set the current texture info used for rendering.
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− | |-
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− | | 1
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− | | 0x000F008E
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− | | u32 color type
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− | | This sets the current texture color type.
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− | |}
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− | | |
− | === Texture info parameter structure for CmdID 0x809F0081 ===
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− | {| class="wikitable" border="1"
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− | ! Index Word
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− | ! Description
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− | |-
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− | | 0
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− | | ?
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− | |-
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− | | 1
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− | | The low u16 is the texture image width, and the high u16 is the texture image height.
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− | |-
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− | | 2
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− | | Texture parameters, initialized by glTexParameter().
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− | |-
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− | | 3
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− | | ?
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− | |-
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− | | 4
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− | | Texture data physical address >> 3. This is normally located in VRAM.
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− | |-
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− | | 5-9
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− | | ?
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− | |}
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− | | |
− | ==== Texture parameters ====
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− | {| class="wikitable" border="1"
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− | ! Bit
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− | ! Description
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− | ! GL parameter name
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− | |-
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− | | 0
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− | | Normally this is value 0.
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− | |
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− | |-
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− | | 1
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− | | 0 = GL_NEAREST, 1 = GL_LINEAR.
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− | | GL_TEXTURE_MAG_FILTER
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− | |-
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− | | 2
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− | | 1 = GL_LINEAR, GL_LINEAR_MIPMAP_NEAREST, or GL_LINEAR_MIPMAP_LINEAR. Value zero otherwise.
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− | | GL_TEXTURE_MIN_FILTER
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− | |-
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− | | 3
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− | | Unused?
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− | | ?
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− | |-
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− | | 7-4
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− | | 2 = texture color type 0xC, 0 otherwise.(Enable/disable texture data compression?)
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− | |-
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− | | 11-8
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− | | 0 = GL_CLAMP_TO_EDGE, 1=unknown, 2=GL_REPEAT, 3=unknown.
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− | | GL_TEXTURE_WRAP_S
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− | |-
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− | | 15-12
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− | | Same values as GL_TEXTURE_WRAP_S.
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− | | GL_TEXTURE_WRAP_T
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− | |-
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− | | 24
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− | | 1 = GL_NEAREST_MIPMAP_LINEAR, or GL_LINEAR_MIPMAP_LINEAR. Value zero otherwise.
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− | | GL_TEXTURE_MIN_FILTER
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− | |-
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− | | 27-25
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− | | Unused?
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− | |-
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− | | 30-28
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− | | When some flag=1: value1=GL_TEXTURE_2D, value0 when the input parameter is not GL_TEXTURE_2D. When some flag=0: 0=GL_TEXTURE_2D, 1-4=unknown.
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− | | ?
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− | |-
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− | | 31
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− | | Unused?
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− | | ?
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− | |}
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− | | |
− | === Texture color type parameter values for CmdID 0x000F008E ===
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− | {| class="wikitable" border="1"
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− | ! Value
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− | ! Description
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− | ! GL Format
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− | ! GL Data Type
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− | |-
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− | | 0x0
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− | | RGBA8888
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− | | GL_RGBA
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− | | GL_UNSIGNED_BYTE
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− | |-
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− | | 0x1
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− | | BGR888
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− | | GL_RGB
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− | | GL_UNSIGNED_BYTE
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− | |-
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− | | 0x2
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− | | RGBA5551
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− | | GL_RGBA
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− | | GL_UNSIGNED_SHORT_5_5_5_1
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− | |-
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− | | 0x3
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− | | RGB565
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− | | GL_RGB
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− | | GL_UNSIGNED_SHORT_5_6_5
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− | |-
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− | | 0x4
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− | | RGBA4444
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− | | GL_RGBA
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− | | GL_UNSIGNED_SHORT_4_4_4_4
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− | |-
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− | | 0x5
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− | |
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− | | GL_LUMINANCE_ALPHA
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− | | GL_UNSIGNED_BYTE
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− | |-
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− | | 0x6
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− | | ?
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− | | ?
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− | | GL_UNSIGNED_BYTE
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− | |-
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− | | 0x7
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− | | GL_LUMINANCE
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− | | GL_UNSIGNED_BYTE
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− | |-
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− | | 0x8
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− | |
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− | | GL_ALPHA
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− | | GL_UNSIGNED_BYTE
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− | |-
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− | | 0x9
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− | | ?
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− | | GL_LUMINANCE_ALPHA
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− | | ?
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− | |-
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− | | 0xA
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− | | ?
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− | | GL_LUMINANCE
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− | |-
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− | | 0xB
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− | | ?
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− | | GL_ALPHA
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− | |-
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− | | 0xC
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− | | Compression related?
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− | | ?
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− | |-
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− | | 0xD
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− | | ?
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− | | ?
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− | |
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− | |}
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