Compiled headers for polygons and sprites More...

Topics
	Constants and Masks
	Polygon header constants and masks

	TA Command Values
	Command values for submitting data to the TA

Data Structures
struct	pvr_poly_hdr_cmd
	PVR header command. More...

struct	pvr_poly_hdr_mode1
	PVR header mode1. More...

struct	pvr_poly_hdr_mode2
	PVR header mode2. More...

struct	pvr_poly_hdr_mode3
	PVR header mode3. More...

struct	pvr_poly_hdr_t
	PVR polygon header. More...

Macros
#define	pvr_poly_ic_hdr pvr_poly_hdr
	PVR polygon header with intensity color.

#define	pvr_poly_mod_hdr pvr_poly_hdr
	PVR polygon header to be used with modifier volumes.

#define	pvr_sprite_hdr pvr_poly_hdr
	PVR polygon header specifically for sprites.

#define	pvr_mod_hdr pvr_poly_hdr
	Modifier volume header.

Typedefs
typedef pvr_poly_hdr_t	pvr_poly_ic_hdr_t

typedef pvr_poly_hdr_t	pvr_poly_mod_hdr_t

typedef pvr_poly_hdr_t	pvr_sprite_hdr_t

typedef pvr_poly_hdr_t	pvr_mod_hdr_t

typedef uint32_t	pvr_txr_ptr_t
	Texture address.

Enumerations
enum	pvr_color_fmts { PVR_CLRFMT_ARGBPACKED , PVR_CLRFMT_4FLOATS , PVR_CLRFMT_INTENSITY , PVR_CLRFMT_INTENSITY_PREV }
	Vertex color formats. More...

enum	pvr_clip_mode { PVR_USERCLIP_DISABLE = 0 , PVR_USERCLIP_INSIDE = 2 , PVR_USERCLIP_OUTSIDE = 3 }
	Primitive clipping modes. More...

enum	pvr_list_type { PVR_LIST_OP_POLY , PVR_LIST_OP_MOD , PVR_LIST_TR_POLY , PVR_LIST_TR_MOD , PVR_LIST_PT_POLY }
	PVR rendering lists. More...

enum	pvr_cull_mode { PVR_CULLING_NONE , PVR_CULLING_SMALL , PVR_CULLING_CCW , PVR_CULLING_CW }
	Primitive culling modes. More...

enum	pvr_depthcmp_mode { PVR_DEPTHCMP_NEVER , PVR_DEPTHCMP_LESS , PVR_DEPTHCMP_EQUAL , PVR_DEPTHCMP_LEQUAL , PVR_DEPTHCMP_GREATER , PVR_DEPTHCMP_NOTEQUAL , PVR_DEPTHCMP_GEQUAL , PVR_DEPTHCMP_ALWAYS }
	Depth comparison modes. More...

enum	pvr_uv_size { PVR_UV_SIZE_8 , PVR_UV_SIZE_16 , PVR_UV_SIZE_32 , PVR_UV_SIZE_64 , PVR_UV_SIZE_128 , PVR_UV_SIZE_256 , PVR_UV_SIZE_512 , PVR_UV_SIZE_1024 }
	Texture U/V size. More...

enum	pvr_txr_shading_mode { PVR_TXRENV_REPLACE , PVR_TXRENV_MODULATE , PVR_TXRENV_DECAL , PVR_TXRENV_MODULATEALPHA }
	Texture color calculation modes. More...

enum	pvr_filter_mode { PVR_FILTER_NEAREST , PVR_FILTER_BILINEAR , PVR_FILTER_TRILINEAR1 , PVR_FILTER_TRILINEAR2 , PVR_FILTER_NONE = PVR_FILTER_NEAREST }
	Texture sampling modes. More...

enum	pvr_fog_type { PVR_FOG_TABLE , PVR_FOG_VERTEX , PVR_FOG_DISABLE , PVR_FOG_TABLE2 }
	Fog modes. More...

enum	pvr_blend_mode { PVR_BLEND_ZERO , PVR_BLEND_ONE , PVR_BLEND_DESTCOLOR , PVR_BLEND_INVDESTCOLOR , PVR_BLEND_SRCALPHA , PVR_BLEND_INVSRCALPHA , PVR_BLEND_DESTALPHA , PVR_BLEND_INVDESTALPHA }
	Blending modes. More...

enum	pvr_pixel_mode { PVR_PIXEL_MODE_ARGB1555 , PVR_PIXEL_MODE_RGB565 , PVR_PIXEL_MODE_ARGB4444 , PVR_PIXEL_MODE_YUV422 , PVR_PIXEL_MODE_BUMP , PVR_PIXEL_MODE_PAL_4BPP , PVR_PIXEL_MODE_PAL_8BPP }
	Texture formats. More...

enum	pvr_strip_len { PVR_STRIP_LEN_1 , PVR_STRIP_LEN_2 , PVR_STRIP_LEN_4 , PVR_STRIP_LEN_6 }
	Triangle strip length. More...

enum	pvr_hdr_type { PVR_HDR_EOL = 0 , PVR_HDR_USERCLIP = 1 , PVR_HDR_OBJECT_LIST_SET = 2 , PVR_HDR_POLY = 4 , PVR_HDR_SPRITE = 5 }
	Polygon header type. More...

Functions
static pvr_txr_ptr_t	to_pvr_txr_ptr (pvr_ptr_t addr)
	Get texture address from VRAM address.

Detailed Description

Compiled headers for polygons and sprites

Structs relative to PVR headers

Macro Definition Documentation

◆ pvr_mod_hdr

#define pvr_mod_hdr pvr_poly_hdr

Modifier volume header.

This is the header that should be submitted when dealing with setting a modifier volume.

◆ pvr_poly_ic_hdr

#define pvr_poly_ic_hdr pvr_poly_hdr

PVR polygon header with intensity color.

This is the equivalent of pvr_poly_hdr_t, but for use with intensity color.

◆ pvr_poly_mod_hdr

#define pvr_poly_mod_hdr pvr_poly_hdr

PVR polygon header to be used with modifier volumes.

This is the equivalent of a pvr_poly_hdr_t for use when a polygon is to be used with modifier volumes.

◆ pvr_sprite_hdr

#define pvr_sprite_hdr pvr_poly_hdr

PVR polygon header specifically for sprites.

This is the equivalent of a pvr_poly_hdr_t for use when a quad/sprite is to be rendered. Note that the color data is here, not in the vertices.

Typedef Documentation

◆ pvr_mod_hdr_t

typedef pvr_poly_hdr_t pvr_mod_hdr_t

◆ pvr_poly_ic_hdr_t

typedef pvr_poly_hdr_t pvr_poly_ic_hdr_t

◆ pvr_poly_mod_hdr_t

typedef pvr_poly_hdr_t pvr_poly_mod_hdr_t

◆ pvr_sprite_hdr_t

typedef pvr_poly_hdr_t pvr_sprite_hdr_t

◆ pvr_txr_ptr_t

typedef uint32_t pvr_txr_ptr_t

Texture address.

This type represents an address of a texture in VRAM, pre-processed to be used in headers.

Enumeration Type Documentation

◆ pvr_blend_mode

enum pvr_blend_mode

Blending modes.

These are all the blending modes that can be done with regard to alpha blending on the PVR.

Enumerator
PVR_BLEND_ZERO	None of this color.
PVR_BLEND_ONE	All of this color.
PVR_BLEND_DESTCOLOR	Destination color.
PVR_BLEND_INVDESTCOLOR	Inverse of destination color.
PVR_BLEND_SRCALPHA	Blend with source alpha.
PVR_BLEND_INVSRCALPHA	Blend with inverse source alpha.
PVR_BLEND_DESTALPHA	Blend with destination alpha.
PVR_BLEND_INVDESTALPHA	Blend with inverse destination alpha.

◆ pvr_clip_mode

enum pvr_clip_mode

Primitive clipping modes.

These control how primitives are clipped against the user clipping area.

Enumerator
PVR_USERCLIP_DISABLE	Disable clipping.
PVR_USERCLIP_INSIDE	Enable clipping inside area.
PVR_USERCLIP_OUTSIDE	Enable clipping outside area.

◆ pvr_color_fmts

enum pvr_color_fmts

Vertex color formats.

These control how colors are represented in polygon data.

Enumerator
PVR_CLRFMT_ARGBPACKED	32-bit integer ARGB
PVR_CLRFMT_4FLOATS	4 floating point values
PVR_CLRFMT_INTENSITY	Intensity color.
PVR_CLRFMT_INTENSITY_PREV	Use last intensity.

◆ pvr_cull_mode

enum pvr_cull_mode

Primitive culling modes.

These culling modes can be set by polygons to determine when they are culled. They work pretty much as you'd expect them to if you've ever used any 3D hardware before.

Enumerator
PVR_CULLING_NONE	Disable culling.
PVR_CULLING_SMALL	Cull if small.
PVR_CULLING_CCW	Cull if counterclockwise.
PVR_CULLING_CW	Cull if clockwise.

◆ pvr_depthcmp_mode

enum pvr_depthcmp_mode

Depth comparison modes.

These set the depth function used for comparisons.

Enumerator
PVR_DEPTHCMP_NEVER	Never pass.
PVR_DEPTHCMP_LESS	Less than.
PVR_DEPTHCMP_EQUAL	Equal to.
PVR_DEPTHCMP_LEQUAL	Less than or equal to.
PVR_DEPTHCMP_GREATER	Greater than.
PVR_DEPTHCMP_NOTEQUAL	Not equal to.
PVR_DEPTHCMP_GEQUAL	Greater than or equal to.
PVR_DEPTHCMP_ALWAYS	Always pass.

◆ pvr_filter_mode

enum pvr_filter_mode

Texture sampling modes.

Enumerator
PVR_FILTER_NEAREST	No filtering (point sample)
PVR_FILTER_BILINEAR	Bilinear interpolation.
PVR_FILTER_TRILINEAR1	Trilinear interpolation pass 1.
PVR_FILTER_TRILINEAR2	Trilinear interpolation pass 2.
PVR_FILTER_NONE

◆ pvr_fog_type

enum pvr_fog_type

Fog modes.

Each polygon can decide what fog type is used by specifying the fog mode in its header.

Enumerator
PVR_FOG_TABLE	Table fog.
PVR_FOG_VERTEX	Vertex fog.
PVR_FOG_DISABLE	Disable fog.
PVR_FOG_TABLE2	Table fog mode 2.

◆ pvr_hdr_type

enum pvr_hdr_type

Polygon header type.

This enum contains the possible PVR header types.

Enumerator
PVR_HDR_EOL
PVR_HDR_USERCLIP
PVR_HDR_OBJECT_LIST_SET
PVR_HDR_POLY
PVR_HDR_SPRITE

◆ pvr_list_type

enum pvr_list_type

PVR rendering lists.

Each primitive submitted to the PVR must be placed in one of these lists, depending on its characteristics.

Enumerator
PVR_LIST_OP_POLY	Opaque polygon list.
PVR_LIST_OP_MOD	Opaque modifier list.
PVR_LIST_TR_POLY	Translucent polygon list.
PVR_LIST_TR_MOD	Translucent modifier list.
PVR_LIST_PT_POLY	Punch-thru polygon list.

◆ pvr_pixel_mode

enum pvr_pixel_mode

Texture formats.

These are the texture formats that the PVR supports.

Enumerator
PVR_PIXEL_MODE_ARGB1555	16-bit ARGB1555
PVR_PIXEL_MODE_RGB565	16-bit RGB565
PVR_PIXEL_MODE_ARGB4444	16-bit ARGB4444
PVR_PIXEL_MODE_YUV422	YUV422 format.
PVR_PIXEL_MODE_BUMP	Bumpmap format.
PVR_PIXEL_MODE_PAL_4BPP	4BPP paletted format
PVR_PIXEL_MODE_PAL_8BPP	8BPP paletted format

◆ pvr_strip_len

enum pvr_strip_len

Triangle strip length.

This sets the maximum length of a triangle strip, if not configured in auto mode.

Enumerator
PVR_STRIP_LEN_1
PVR_STRIP_LEN_2
PVR_STRIP_LEN_4
PVR_STRIP_LEN_6

◆ pvr_txr_shading_mode

enum pvr_txr_shading_mode

Texture color calculation modes.

The shading mode specifies how the pixel value used as the "foreground" or "source" for blending is computed.

Here, "tex" represents the pixel value from the texture, and "col" represents the pixel value from the polygon's color. RGB() represents the color channels, A() represents the alpha channel, and ARGB() represents the whole pixel (color + alpha).

Note that the offset color (aka. oargb), if specular lighting is enabled, is added to the result. Its alpha channel is ignored.

Enumerator
PVR_TXRENV_REPLACE	px = ARGB(tex)
PVR_TXRENV_MODULATE	px = A(tex) + RGB(col) * RGB(tex)
PVR_TXRENV_DECAL	px = A(col) + RGB(tex) * A(tex) + RGB(col) * (1 - A(tex))
PVR_TXRENV_MODULATEALPHA	px = ARGB(col) * ARGB(tex)

◆ pvr_uv_size

enum pvr_uv_size

Texture U/V size.

Enumerator
PVR_UV_SIZE_8
PVR_UV_SIZE_16
PVR_UV_SIZE_32
PVR_UV_SIZE_64
PVR_UV_SIZE_128
PVR_UV_SIZE_256
PVR_UV_SIZE_512
PVR_UV_SIZE_1024

Function Documentation

◆ to_pvr_txr_ptr()

static pvr_txr_ptr_t to_pvr_txr_ptr ( pvr_ptr_t addr )

inlinestatic

Get texture address from VRAM address.

This function can be used to get a texture address that can be used in a PVR header from the texture's VRAM address.

Parameters

addr	The texture's address in VRAM

Returns: The pre-processed texture address

Topics

Data Structures

Macros

Typedefs

Enumerations

Functions