gpu

Documentation

Index

• Constants
• type GPU
  • func NewGBGPU(io *ioports.IOPorts, renderer coreio.FrameDrawer, cgb bool) *GPU
  • func (gpu *GPU) FlushFrameBuffer()
  • func (gpu *GPU) Read(addr uint16) uint8
  • func (gpu *GPU) Tick(cycles uint8) uint8
  • func (gpu *GPU) Write(addr uint16, value uint8)
• type Sprite
  • func (t *Sprite) GetPixels(vram *gbVRAM, line uint8, offset uint8, mode8x16 bool) []uint8

Constants

const (
	ModeHBlank = iota
	ModeVBlank
	ModeOAM
	ModeVRAM
)

Types

type GPU

type GPU struct {
	// contains filtered or unexported fields
}

func NewGBGPU

func NewGBGPU(io *ioports.IOPorts, renderer coreio.FrameDrawer, cgb bool) *GPU

func (*GPU) FlushFrameBuffer

func (gpu *GPU) FlushFrameBuffer()

func (*GPU) Read

func (gpu *GPU) Read(addr uint16) uint8

Proxy for _vram access & OAM

func (*GPU) Tick

func (gpu *GPU) Tick(cycles uint8) uint8

func (*GPU) Write

func (gpu *GPU) Write(addr uint16, value uint8)

type Sprite

type Sprite struct {
	X      uint8
	Y      uint8
	TileID uint8

	// Bit7   OBJ-to-BG Priority 					(0=OBJ Above BG, 1=OBJ Behind BG color 1-3)
	// 												(Used for both BG and Window. BG color 0 is always behind OBJ)
	ObjToBgPriority bool
	// Bit6   Y flip          						(0=Normal, 1=Vertically mirrored)
	YFlip bool
	// Bit5   X flip          						(0=Normal, 1=Horizontally mirrored)
	XFlip bool
	// Bit4   Palette number  **Non CGB Mode Only** (0=OBP0, 1=OBP1)
	PaletteNumber uint8

	// *** CGB MODE ***
	// Bit3   Tile VRAM-Bank  **CGB Mode Only**     (0=Bank 0, 1=Bank 1)
	BankNumber uint8
	// Bit2-0 Palette number  **CGB Mode Only**     (OBP0-7)
	ColorPalette uint8
	// contains filtered or unexported fields
}

func (*Sprite) GetPixels

func (t *Sprite) GetPixels(vram *gbVRAM, line uint8, offset uint8, mode8x16 bool) []uint8