Video

Video graphics subsystem. More...

Classes
struct	Sifteo::BG0Drawable
	A VRAM accessor for drawing graphics in the BG0 mode. More...
struct	Sifteo::BG0ROMDrawable
	A VRAM accessor for drawing graphics in the BG0_ROM mode. More...
struct	Sifteo::BG1Drawable
	A VRAM accessor for drawing graphics in the BG1 mode. More...
struct	Sifteo::BG1Mask
	A BG1 tile mask. In other words, this is a 16x16-bit two-dimensional vector. More...
struct	Sifteo::BG2Drawable
	A VRAM accessor for drawing graphics in the BG2 mode. More...
struct	Sifteo::Colormap
	An accessor for the colormap, with up to 16 colors. More...
struct	Sifteo::ColormapSlot
	A ColormapSlot refers to a single colormap index on a single cube. More...
struct	Sifteo::FBDrawable< tWidth, tHeight, tBitsPerPixel >
	A templatized VRAM accessor for drawing pixel graphics, in one of the cube's supported framebuffer drawing modes. More...
struct	Sifteo::RelocatableTileBuffer< tW, tH, tF >
	A drawable that's backed by plain memory, usable with multiple cubes. More...
struct	Sifteo::RGB565
	Represents a 16-bit 5:6:5 color, the native format used by our display. More...
struct	Sifteo::SpriteLayer
	A SpriteLayer represents the VRAM attributes for the sprite rendering layer in BG0_SPR_BG1 mode. More...
struct	Sifteo::SpriteRef
	SpriteRefs refer to a single sprite on a single cube. More...
struct	Sifteo::StampDrawable
	A VRAM accessor for the STAMP mode, a special purpose 16-color framebuffer mode which supports color-keying and tiling. More...
struct	Sifteo::TileBuffer< tW, tH, tF >
	A drawable that's backed by plain memory, instead of by a VideoBuffer. More...
struct	Sifteo::VideoBuffer
	A memory buffer which holds graphics data. More...

Typedefs
typedef FBDrawable< 128, 48, 1 >	Sifteo::FB128Drawable
	Typedef for the FBDrawable instance used in FB128 mode.
typedef FBDrawable< 32, 32, 4 >	Sifteo::FB32Drawable
	Typedef for the FBDrawable instance used in FB32 mode.
typedef FBDrawable< 64, 64, 1 >	Sifteo::FB64Drawable
	Typedef for the FBDrawable instance used in FB64 mode.

Enumerations
enum	Sifteo::BG0ROMDrawable::ColorMode
	Color modes, XOR'ed with the tile IDs below.
enum	Sifteo::BG0ROMDrawable::Palette
	Palette IDs, XOR'ed with the tile IDs below.
enum	Sifteo::Rotation
	Rotation and mirroring modes, for setRotation(). More...
enum	Sifteo::BG0ROMDrawable::Tiles {   Sifteo::BG0ROMDrawable::FONT_SPACE = 0, Sifteo::BG0ROMDrawable::SOLID_BG = 0, Sifteo::BG0ROMDrawable::SOLID_FG = 104, Sifteo::BG0ROMDrawable::V_BARGRAPH = 224,   Sifteo::BG0ROMDrawable::H_BARGRAPH = 231 }
	Well-known tile numbers. More...
enum	Sifteo::VideoMode {   Sifteo::POWERDOWN_MODE = _SYS_VM_POWERDOWN, Sifteo::BG0_ROM = _SYS_VM_BG0_ROM, Sifteo::SOLID_MODE = _SYS_VM_SOLID, Sifteo::FB32 = _SYS_VM_FB32,   Sifteo::FB64 = _SYS_VM_FB64, Sifteo::FB128 = _SYS_VM_FB128, Sifteo::BG0 = _SYS_VM_BG0, Sifteo::BG0_BG1 = _SYS_VM_BG0_BG1,   Sifteo::BG0_SPR_BG1 = _SYS_VM_BG0_SPR_BG1, Sifteo::BG2 = _SYS_VM_BG2, Sifteo::STAMP = _SYS_VM_STAMP }
	Supported video modes. More...

Detailed Description

Video graphics subsystem.

Enumeration Type Documentation

enum Sifteo::Rotation

Rotation and mirroring modes, for setRotation().

In every video mode, the hardware can perform orthogonal rotation and mirroring cheaply. This happens at render-time, not continuously. For example, if you're doing partial screen drawing with setWindow() and you change the current rotation, the new rotation mode will affect future drawing but not past drawing.

enum Sifteo::BG0ROMDrawable::Tiles

Well-known tile numbers.

Enumerator
FONT_SPACE	First character in the font, ASCII space.
SOLID_BG	Solid background-colored tile (space)
SOLID_FG	Solid foreground-colored tile.
V_BARGRAPH	First tile in the vertical bargraph series.
H_BARGRAPH	First tile in the horizontal bargraph series.

enum Sifteo::VideoMode

Supported video modes.

Each "video mode" is a separate way of interpreting the VideoBuffer memory in order to compose a frame of graphics.

Most of the video modes map directly to a collection of one or more drawables, which may be accessed via this VideoBuffer class. Some video modes are special-purpose, like POWERDOWN.

A cube can only be in one video mode at a time, though it's possible to use setWindow() to render portions of the screen in different modes. If you do this, take notice of how different modes reuse the same memory for different purposes.

Enumerator
POWERDOWN_MODE	Power saving mode, LCD is off.
BG0_ROM	BG0, with tile data from internal ROM.
SOLID_MODE	Solid color, from colormap[0].
FB32	32x32 pixel 16-color framebuffer
FB64	64x64 pixel 2-color framebuffer
FB128	128x48 pixel 2-color framebuffer
BG0	BG0 background layer.
BG0_BG1	BG0 background plus BG1 overlay.
BG0_SPR_BG1	BG0 background, 8 sprites, BG1 overlay.
BG2	16x16 tiled mode with affine transform
STAMP	Reconfigurable 16-color framebuffer with transparency.