ppu

package

v1.0.0 Latest Latest Go to latest Published: Jan 26, 2024 License: MIT Imports: 6 Imported by: 0

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Repository

github.com/maxpoletaev/dendy

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Open Source Insights

Documentation ¶

Constants ¶

This section is empty.

Variables ¶

View Source

var Colors [64]color.RGBA

Functions ¶

This section is empty.

Types ¶

type CtrlFlags ¶

type CtrlFlags = uint8

const (
	CtrlIncrementMode      CtrlFlags = 1 << 2
	CtrlSpritePatternAddr  CtrlFlags = 1 << 3
	CtrlPatternTableSelect CtrlFlags = 1 << 4
	CtrlSpriteSize         CtrlFlags = 1 << 5
	CtrlSlaveMode          CtrlFlags = 1 << 6
	CtrlNMI                CtrlFlags = 1 << 7
)

type MaskFlags ¶

type MaskFlags = uint8

const (
	MaskGrayscale       MaskFlags = 1 << 0
	MaskShowLeftTiles   MaskFlags = 1 << 1
	MaskShowLeftSprites MaskFlags = 1 << 2
	MaskShowBackground  MaskFlags = 1 << 3
	MaskShowSprites     MaskFlags = 1 << 4
	MaskEmphasizeRed    MaskFlags = 1 << 5
	MaskEmphasizeGreen  MaskFlags = 1 << 6
	MaskEmphasizeBlue   MaskFlags = 1 << 7
)

type PPU ¶

type PPU struct {
	Frame [256][240]color.RGBA

	NoSpriteLimit bool
	FastForward   bool
	// contains filtered or unexported fields
}

func New ¶

func New(cart ines.Cartridge) *PPU

func (*PPU) DisableFastForward ¶

func (p *PPU) DisableFastForward()

func (*PPU) EnableFastForward ¶

func (p *PPU) EnableFastForward()

func (*PPU) FrameComplete ¶

func (p *PPU) FrameComplete() (v bool)

func (*PPU) LoadState ¶

func (p *PPU) LoadState(r *binario.Reader) error

func (*PPU) PendingNMI ¶

func (p *PPU) PendingNMI() (v bool)

func (*PPU) Read ¶

func (p *PPU) Read(addr uint16) uint8

func (*PPU) Reset ¶

func (p *PPU) Reset()

func (*PPU) SaveState ¶

func (p *PPU) SaveState(w *binario.Writer) error

func (*PPU) ScanlineComplete ¶

func (p *PPU) ScanlineComplete() (v bool)

func (*PPU) SetDMACallback ¶

func (p *PPU) SetDMACallback(callback dmaFunc)

func (*PPU) Tick ¶

func (p *PPU) Tick()

func (*PPU) TransferOAM ¶

func (p *PPU) TransferOAM(pageAddr uint8)

func (*PPU) Write ¶

func (p *PPU) Write(addr uint16, data uint8)

type Sprite ¶

type Sprite struct {
	Index     int
	Pixels    [8][16]uint8
	PaletteID uint8
	X, Y      uint8
	FlipX     bool
	FlipY     bool
	Behind    bool
}

type StatusFlags ¶

type StatusFlags = uint8

const (
	StatusSpriteOverflow StatusFlags = 1 << 5
	StatusSpriteZeroHit  StatusFlags = 1 << 6
	StatusVBlank         StatusFlags = 1 << 7
)

type Tile ¶

type Tile struct {
	Pixels    [8][8]uint8
	PaletteID uint8
}

Source Files ¶

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