video

Documentation

Overview

Package video takes care on the game display. It also creates the window using GLFW. It exports the Refresh callback used by the libretro implementation.

Index

• Constants
• Variables
• func Refresh(data unsafe.Pointer, width int32, height int32, pitch int32)
• func Screenshot(path string) error
• func SetPixelFormat(format uint32) bool
• func SetRotation(rot uint) bool
• type Format

Constants

const (
	// BIT_FORMAT_SHORT_5_5_5_1 has 5 bits R, 5 bits G, 5 bits B, 1 bit alpha
	BIT_FORMAT_SHORT_5_5_5_1 = iota
	// BIT_FORMAT_INT_8_8_8_8_REV has 8 bits R, 8 bits G, 8 bits B, 8 bit alpha
	BIT_FORMAT_INT_8_8_8_8_REV
	// BIT_FORMAT_SHORT_5_6_5 has 5 bits R, 6 bits G, 5 bits
	BIT_FORMAT_SHORT_5_6_5
)

Variables

var BPP int

var Framebuffer []byte

var Geom libretro.GameGeometry

var PixelFormat uint32

var Rotation uint

var Width, Height, Pitch int32

Functions

func Refresh

func Refresh(data unsafe.Pointer, width int32, height int32, pitch int32)

Refresh the texture framebuffer

func Screenshot

func Screenshot(path string) error

func SetPixelFormat

func SetPixelFormat(format uint32) bool

SetPixelFormat is a callback passed to the libretro implementation. It allows the core or the game to tell us which pixel format should be used for the display.

func SetRotation

func SetRotation(rot uint) bool

SetRotation rotates the game image as requested by the core

Types

type Format

type Format func(data []byte, index int) color.RGBA