PVR polygon context. More...

#include <dc/pvr.h>

Data Fields
int	list_type
	Primitive list. More...

struct {
int alpha
	Enable or disable alpha outside modifier. More...

int shading
	Shading type. More...

int fog_type
	Fog type outside modifier. More...

int culling
	Culling mode. More...

int color_clamp
	Color clamp enable/disable outside modifier. More...

int clip_mode
	Clipping mode. More...

int modifier_mode
	Modifier mode. More...

int specular
	Offset color enable/disable outside modifier. More...

int alpha2
	Enable/disable alpha inside modifier. More...

int fog_type2
	Fog type inside modifier. More...

int color_clamp2
	Color clamp enable/disable inside modifier. More...

}	gen
	General parameters. More...

struct {
int src
	Source blending mode outside modifier. More...

int dst
	Dest blending mode outside modifier. More...

int src_enable
	Source blending enable outside modifier. More...

int dst_enable
	Dest blending enable outside modifier. More...

int src2
	Source blending mode inside modifier. More...

int dst2
	Dest blending mode inside modifier. More...

int src_enable2
	Source blending mode inside modifier. More...

int dst_enable2
	Dest blending mode inside modifier. More...

}	blend
	Blending parameters. More...

struct {
int color
	Color format in vertex. More...

int uv
	U/V data format in vertex. More...

int modifier
	Enable or disable modifier effect. More...

}	fmt
	Format control. More...

struct {
int comparison
	Depth comparison mode. More...

int write
	Enable or disable depth writes. More...

}	depth
	Depth comparison/write modes. More...

struct {
int enable
	Enable/disable texturing. More...

int filter
	Filtering mode. More...

int mipmap
	Enable/disable mipmaps. More...

int mipmap_bias
	Mipmap bias. More...

int uv_flip
	Enable/disable U/V flipping. More...

int uv_clamp
	Enable/disable U/V clamping. More...

int alpha
	Enable/disable texture alpha. More...

int env
	Texture color contribution. More...

int width
	Texture width (requires a power of 2) More...

int height
	Texture height (requires a power of 2) More...

int format
	Texture format. More...

pvr_ptr_t base
	Texture pointer. More...

}	txr
	Texturing params outside modifier. More...

struct {
int enable
	Enable/disable texturing. More...

int filter
	Filtering mode. More...

int mipmap
	Enable/disable mipmaps. More...

int mipmap_bias
	Mipmap bias. More...

int uv_flip
	Enable/disable U/V flipping. More...

int uv_clamp
	Enable/disable U/V clamping. More...

int alpha
	Enable/disable texture alpha. More...

int env
	Texture color contribution. More...

int width
	Texture width (requires a power of 2) More...

int height
	Texture height (requires a power of 2) More...

int format
	Texture format. More...

pvr_ptr_t base
	Texture pointer. More...

}	txr2
	Texturing params inside modifier. More...

Detailed Description

PVR polygon context.

You should use this more human readable format for specifying your polygon contexts, and then compile them into polygon headers when you are ready to start using them.

This has embedded structures in it for two reasons; the first reason is to make it easier for me to add new stuff later without breaking existing code. The second reason is to make it more readable and usable.

Unfortunately, it seems that Doxygen chokes up a little bit on this structure, and others like it. The documentation should still be mostly understandable though...

Field Documentation

int pvr_poly_cxt_t::alpha

Enable or disable alpha outside modifier.

Enable/disable texture alpha.

See also: Enable or disable alpha blending; Enable or disable texture alpha blending

int pvr_poly_cxt_t::alpha2

Enable/disable alpha inside modifier.

See also: Enable or disable alpha blending

pvr_ptr_t pvr_poly_cxt_t::base

Texture pointer.

struct { ... } pvr_poly_cxt_t::blend

Blending parameters.

int pvr_poly_cxt_t::clip_mode

Clipping mode.

See also: PVR clipping modes

int pvr_poly_cxt_t::color

Color format in vertex.

See also: PVR vertex color formats

int pvr_poly_cxt_t::color_clamp

Color clamp enable/disable outside modifier.

See also: Enable or disable color clamping

int pvr_poly_cxt_t::color_clamp2

Color clamp enable/disable inside modifier.

See also: Enable or disable color clamping

int pvr_poly_cxt_t::comparison

Depth comparison mode.

See also: PVR depth comparison modes

int pvr_poly_cxt_t::culling

Culling mode.

See also: PVR culling modes

struct { ... } pvr_poly_cxt_t::depth

Depth comparison/write modes.

int pvr_poly_cxt_t::dst

Dest blending mode outside modifier.

See also: PVR blending modes

int pvr_poly_cxt_t::dst2

Dest blending mode inside modifier.

See also: PVR blending modes

int pvr_poly_cxt_t::dst_enable

Dest blending enable outside modifier.

See also: Enable or disable blending

int pvr_poly_cxt_t::dst_enable2

Dest blending mode inside modifier.

See also: Enable or disable blending

int pvr_poly_cxt_t::enable

Enable/disable texturing.

See also: Enable or disable texturing on polygons

int pvr_poly_cxt_t::env

Texture color contribution.

See also: Texture color calculation modes

int pvr_poly_cxt_t::filter

Filtering mode.

See also: PVR texture sampling modes

struct { ... } pvr_poly_cxt_t::fmt

Format control.

int pvr_poly_cxt_t::fog_type

Fog type outside modifier.

See also: PVR fog modes

int pvr_poly_cxt_t::fog_type2

Fog type inside modifier.

See also: PVR fog modes

int pvr_poly_cxt_t::format

Texture format.

See also: PVR texture formats

struct { ... } pvr_poly_cxt_t::gen

General parameters.

int pvr_poly_cxt_t::height

Texture height (requires a power of 2)

int pvr_poly_cxt_t::list_type

Primitive list.

See also: PVR primitive list types

int pvr_poly_cxt_t::mipmap

Enable/disable mipmaps.

See also: Enable or disable PVR mipmap processing

int pvr_poly_cxt_t::mipmap_bias

Mipmap bias.

See also: PVR mipmap bias modes

int pvr_poly_cxt_t::modifier

Enable or disable modifier effect.

See also: Enable or disable modifier effects

int pvr_poly_cxt_t::modifier_mode

Modifier mode.

int pvr_poly_cxt_t::shading

Shading type.

See also: PVR shading modes

int pvr_poly_cxt_t::specular

Offset color enable/disable outside modifier.

See also: Enable or disable offset color

int pvr_poly_cxt_t::src

Source blending mode outside modifier.

See also: PVR blending modes

int pvr_poly_cxt_t::src2

Source blending mode inside modifier.

See also: PVR blending modes

int pvr_poly_cxt_t::src_enable

Source blending enable outside modifier.

See also: Enable or disable blending

int pvr_poly_cxt_t::src_enable2

Source blending mode inside modifier.

See also: Enable or disable blending

struct { ... } pvr_poly_cxt_t::txr

Texturing params outside modifier.

struct { ... } pvr_poly_cxt_t::txr2

Texturing params inside modifier.

int pvr_poly_cxt_t::uv

U/V data format in vertex.

See also: PVR U/V data format control

int pvr_poly_cxt_t::uv_clamp

Enable/disable U/V clamping.

See also: Enable or disable clamping of U/V on the PVR

int pvr_poly_cxt_t::uv_flip

Enable/disable U/V flipping.

See also: Enable or disable U/V flipping on the PVR

int pvr_poly_cxt_t::width

Texture width (requires a power of 2)

int pvr_poly_cxt_t::write

Enable or disable depth writes.

See also: Enable or disable PVR depth writes

The documentation for this struct was generated from the following file:

kernel/arch/dreamcast/include/dc/pvr.h

Data Fields

Detailed Description

Field Documentation