func (ps *ParticleSystem) DoStep(gs *gamestate.GameState) {
ps.TransformProg.Use()
ps.VaoTff1.Bind()
gl.Enable(gl.RASTERIZER_DISCARD)
defer gl.Disable(gl.RASTERIZER_DISCARD)
// ps.Data1.Bind(gl.ARRAY_BUFFER)
// SetAttribPointers(&ps.TransformLoc, &ParticleVertex{}, false)
//var orientation mgl.Quat = gs.Player.Camera.Orientation
var model mgl.Mat4 = gs.Camera.Model()
pPos := model.Mul4x1(mgl.Vec4{1, -1, 0, 1})
ps.TransformLoc.Origin.Uniform3f(pPos[0], pPos[1], pPos[2])
dir := model.Mul4x1(mgl.Vec4{0, 0, 100, 0})
ps.TransformLoc.Dir.Uniform3f(dir[0], dir[1], dir[2])
ps.Data2.BindBufferBase(gl.TRANSFORM_FEEDBACK_BUFFER, 0)
gl.BeginTransformFeedback(gl.POINTS)
gl.DrawArrays(gl.POINTS, 0, ps.NumParticles)
gl.EndTransformFeedback()
ps.Data1, ps.Data2 = ps.Data2, ps.Data1
ps.VaoRender1, ps.VaoRender2 = ps.VaoRender2, ps.VaoRender1
ps.VaoTff1, ps.VaoTff2 = ps.VaoTff2, ps.VaoTff1
}
func (ui *UIText) Draw() {
if ui.text == "" {
return
}
v := ui.align.Vector()
v.X = (v.X * ui.width)
v.Y = (v.Y * ui.height)
mat := engine.TextureMaterial
if ui.Font.IsSDF() {
mat = engine.SDFMaterial
}
mat.Begin(ui.GameObject())
mp := mat.ProjMatrix
mv := mat.ViewMatrix
mm := mat.ModelMatrix
tx := mat.Texture
ti := mat.Tiling
of := mat.Offset
color := mat.AddColor
_ = color
ui.buffer.Bind(gl.ARRAY_BUFFER)
mat.Verts.EnableArray()
mat.Verts.AttribPointer(3, gl.FLOAT, false, 0, uintptr(0))
mat.UV.EnableArray()
mat.UV.AttribPointer(2, gl.FLOAT, false, 0, uintptr(ui.texcoordsIndex))
camera := engine.GetScene().SceneBase().Camera
view := camera.InvertedMatrix()
model := engine.Identity()
model.Translate(v.X, v.Y, 0)
model.Mul(ui.GameObject().Transform().Matrix())
model.Translate(0.75, 0.75, 0)
/*
view := camera.Transform().Matrix()
view = view.Invert()
model := ui.GameObject().Transform().Matrix()
*/
mv.UniformMatrix4fv(false, view)
mp.UniformMatrix4f(false, (*[16]float32)(camera.Projection))
mm.UniformMatrix4fv(false, model)
ti.Uniform2f(1, 1)
of.Uniform2f(0, 0)
ui.Font.Bind()
tx.Uniform1i(0)
color.Uniform4f(ui.Color.R, ui.Color.G, ui.Color.B, ui.Color.A)
gl.DrawArrays(gl.QUADS, 0, ui.vertexCount)
}
func DrawSprites(tex *Texture, uvs []UV, positions []Vector, scales []Vector, rotations []float32, alings []Align, colors []Color) {
internalMaterial.Begin(nil)
mp := internalMaterial.ProjMatrix
mv := internalMaterial.ViewMatrix
mm := internalMaterial.ModelMatrix
tx := internalMaterial.Texture
ac := internalMaterial.AddColor
ti := internalMaterial.Tiling
of := internalMaterial.Offset
defaultBuffer.Bind(gl.ARRAY_BUFFER)
internalMaterial.Verts.EnableArray()
internalMaterial.Verts.AttribPointer(3, gl.FLOAT, false, 0, uintptr(0))
internalMaterial.UV.EnableArray()
internalMaterial.UV.AttribPointer(2, gl.FLOAT, false, 0, uintptr(12*4))
camera := GetScene().SceneBase().Camera
view := camera.InvertedMatrix()
mv.UniformMatrix4fv(false, view)
mp.UniformMatrix4f(false, (*[16]float32)(camera.Projection))
tex.Bind()
tx.Uniform1i(0)
for i := 0; i < len(uvs); i++ {
uv, position, scale := uvs[i], positions[i], scales[i]
if !InsideScreen(uv.Ratio, position, scale) {
continue
}
rotation, aling, color := rotations[i], alings[i], colors[i]
v := aling.Vector()
v.X *= uv.Ratio
model := Identity()
model.Translate(v.X, v.Y, 0)
model.Scale((scale.X * uv.Ratio), scale.Y, scale.Z)
model.RotateZ(rotation, -1)
model.Translate(position.X+0.75, position.Y+0.75, position.Z)
mm.UniformMatrix4fv(false, model)
ac.Uniform4f(color.R, color.G, color.B, color.A)
ti.Uniform2f(uv.U2-uv.U1, uv.V2-uv.V1)
of.Uniform2f(uv.U1, uv.V1)
gl.DrawArrays(gl.QUADS, 0, 4)
}
internalMaterial.End(nil)
}
func (sp *Sprite) Draw() {
if sp.Texture != nil && sp.Render {
/*
Temporal camera distance check
*/
currentUV := sp.UVs[int(sp.animation)]
if !InsideScreen(currentUV.Ratio, sp.Transform().WorldPosition(), sp.Transform().WorldScale()) {
return
}
renders++
TextureMaterial.Begin(sp.GameObject())
mp := TextureMaterial.ProjMatrix
mv := TextureMaterial.ViewMatrix
mm := TextureMaterial.ModelMatrix
tx := TextureMaterial.Texture
ac := TextureMaterial.AddColor
ti := TextureMaterial.Tiling
of := TextureMaterial.Offset
defaultBuffer.Bind(gl.ARRAY_BUFFER)
TextureMaterial.Verts.EnableArray()
TextureMaterial.Verts.AttribPointer(3, gl.FLOAT, false, 0, uintptr(0))
TextureMaterial.UV.EnableArray()
TextureMaterial.UV.AttribPointer(2, gl.FLOAT, false, 0, uintptr(12*4))
v := sp.align.Vector()
v.X *= currentUV.Ratio
camera := GetScene().SceneBase().Camera
view := camera.InvertedMatrix()
model := Identity()
model.Scale(currentUV.Ratio, 1, 1)
model.Translate(v.X, v.Y, 0)
model.Mul(sp.GameObject().Transform().Matrix())
mv.UniformMatrix4f(false, (*[16]float32)(&view))
mp.UniformMatrix4f(false, (*[16]float32)(camera.Projection))
mm.UniformMatrix4f(false, (*[16]float32)(&model))
sp.Bind()
tx.Uniform1i(0)
ac.Uniform4f(sp.Color.R, sp.Color.G, sp.Color.B, sp.Color.A)
ti.Uniform2f((currentUV.U2-currentUV.U1)*sp.Tiling.X, (currentUV.V2-currentUV.V1)*sp.Tiling.Y)
of.Uniform2f(currentUV.U1, currentUV.V1)
gl.DrawArrays(gl.QUADS, 0, 4)
TextureMaterial.End(sp.GameObject())
}
}
func (this *LineRenderer) Render(Proj, View mgl.Mat4) {
data := debug.Read()
if len(data) > 0 {
this.Prog.Use()
this.vao.Bind()
this.buffer.Bind(gl.ARRAY_BUFFER)
gl.BufferData(gl.ARRAY_BUFFER, helpers.ByteSizeOfSlice(data), data, gl.STREAM_DRAW)
this.RenLoc.Proj.UniformMatrix4f(false, renderstuff.GlMat4(&Proj))
this.RenLoc.View.UniformMatrix4f(false, renderstuff.GlMat4(&View))
gl.DrawArrays(gl.LINES, 0, len(data))
}
}
func (sp *Sprite) DrawScreen() {
if sp.Texture != nil && sp.Render {
camera := GetScene().SceneBase().Camera
pos := sp.Transform().WorldPosition()
scale := sp.Transform().WorldScale()
TextureMaterial.Begin(sp.GameObject())
mp := TextureMaterial.ProjMatrix
mv := TextureMaterial.ViewMatrix
mm := TextureMaterial.ModelMatrix
tx := TextureMaterial.Texture
ac := TextureMaterial.AddColor
ti := TextureMaterial.Tiling
of := TextureMaterial.Offset
defaultBuffer.Bind(gl.ARRAY_BUFFER)
TextureMaterial.Verts.EnableArray()
TextureMaterial.Verts.AttribPointer(3, gl.FLOAT, false, 0, uintptr(0))
TextureMaterial.UV.EnableArray()
TextureMaterial.UV.AttribPointer(2, gl.FLOAT, false, 0, uintptr(12*4))
currentUV := sp.UVs[int(sp.animation)]
view := Identity()
model := Identity()
model.Scale(scale.X*currentUV.Ratio, scale.Y, 1)
model.Translate((float32(Width)/2)+pos.X+0.75, (float32(Height)/2)+pos.Y+0.75, 1)
mv.UniformMatrix4fv(false, view)
mp.UniformMatrix4f(false, (*[16]float32)(camera.Projection))
mm.UniformMatrix4fv(false, model)
ti.Uniform2f((currentUV.U2-currentUV.U1)*sp.Tiling.X, (currentUV.V2-currentUV.V1)*sp.Tiling.Y)
of.Uniform2f(currentUV.U1, currentUV.V1)
sp.Bind()
gl.ActiveTexture(gl.TEXTURE0)
tx.Uniform1i(0)
//ac.Uniform4f(1, 1, 1, 0)
ac.Uniform4f(sp.Color.R, sp.Color.G, sp.Color.B, sp.Color.A)
gl.DrawArrays(gl.QUADS, 0, 4)
TextureMaterial.End(sp.GameObject())
}
}
func DrawSprite(tex *Texture, uv UV, position Vector, scale Vector, rotation float32, aling Align, color Color) {
if !InsideScreen(uv.Ratio, position, scale) {
return
}
internalMaterial.Begin(nil)
mp := internalMaterial.ProjMatrix
mv := internalMaterial.ViewMatrix
mm := internalMaterial.ModelMatrix
tx := internalMaterial.Texture
ac := internalMaterial.AddColor
ti := internalMaterial.Tiling
of := internalMaterial.Offset
defaultBuffer.Bind(gl.ARRAY_BUFFER)
internalMaterial.Verts.EnableArray()
internalMaterial.Verts.AttribPointer(3, gl.FLOAT, false, 0, uintptr(0))
internalMaterial.UV.EnableArray()
internalMaterial.UV.AttribPointer(2, gl.FLOAT, false, 0, uintptr(12*4))
v := aling.Vector()
v.X *= uv.Ratio
camera := GetScene().SceneBase().Camera
view := camera.InvertedMatrix()
model := Identity()
model.Translate(v.X, v.Y, 0)
model.Scale(scale.X*uv.Ratio, scale.Y, scale.Z)
model.RotateZ(rotation, -1)
model.Translate(position.X+0.75, position.Y+0.75, position.Z)
mv.UniformMatrix4fv(false, view)
mp.UniformMatrix4f(false, (*[16]float32)(camera.Projection))
mm.UniformMatrix4fv(false, model)
ac.Uniform4i(int(color.R), int(color.G), int(color.B), int(color.A))
ti.Uniform2f(uv.U2-uv.U1, uv.V2-uv.V1)
of.Uniform2f(uv.U1, uv.V1)
tx.Uniform1i(0)
tex.Bind()
gl.DrawArrays(gl.QUADS, 0, 4)
internalMaterial.End(nil)
}
func Draw(renData *RenderData) {
numverts := renData.Numverts
if renData.InstanceData == 0 {
if renData.Indices == 0 {
gl.DrawArrays(renData.Mode, 0, renData.Numverts)
} else {
gl.DrawElements(renData.Mode, numverts, renData.IndexType, uintptr(0))
}
} else {
if renData.Indices == 0 {
gl.DrawArraysInstanced(renData.Mode, 0, renData.Numverts, renData.NumInstances)
} else {
gl.DrawElementsInstanced(renData.Mode, renData.Numverts, renData.IndexType, 0, renData.NumInstances)
}
}
}
func (drawer *SpriteDrawer) Draw(sprites []Sprite) {
gl.Viewport(0, 0, drawer.width, drawer.height)
if len(sprites) == 0 {
return
}
drawer.Use()
drawer.Texture.Bind(gl.TEXTURE_2D_ARRAY)
tmp := drawer.GetTransform().To32()
drawer.camera_uniform.UniformMatrix2x3f(false, &tmp)
vertexbuffer := gl.GenBuffer()
defer vertexbuffer.Delete()
vertexbuffer.Bind(gl.ARRAY_BUFFER)
stride := int(unsafe.Sizeof(sprites[0]))
gl.BufferData(gl.ARRAY_BUFFER, stride*len(sprites), sprites, gl.STREAM_DRAW)
var transform1, transform2, texcoords, texlevel gl.AttribLocation
transform1 = 0
transform2 = 1
texcoords = 2
texlevel = 3
transform1.AttribPointer(3, gl.FLOAT, false, stride, unsafe.Offsetof(sprites[0].Transform))
transform2.AttribPointer(3, gl.FLOAT, false, stride, unsafe.Offsetof(sprites[0].Transform)+unsafe.Sizeof(sprites[0].Transform[0])*3)
texcoords.AttribPointer(4, gl.FLOAT, false, stride, unsafe.Offsetof(sprites[0].TextureLeft))
texlevel.AttribPointer(1, gl.FLOAT, false, stride, unsafe.Offsetof(sprites[0].Layer))
transform1.EnableArray()
transform2.EnableArray()
texcoords.EnableArray()
texlevel.EnableArray()
gl.DrawArrays(gl.POINTS, 0, len(sprites))
transform1.DisableArray()
transform2.DisableArray()
texcoords.DisableArray()
texlevel.DisableArray()
}
func main() {
glfw.SetErrorCallback(errorCallback)
// lock glfw/gl calls to a single thread
runtime.LockOSThread()
runtime.GOMAXPROCS(8) // Render, read commands, send input, extra for file loading, etc
if !glfw.Init() {
panic("Could not init glfw!")
}
defer glfw.Terminate()
glfw.WindowHint(glfw.ContextVersionMajor, 3)
glfw.WindowHint(glfw.ContextVersionMinor, 3)
glfw.WindowHint(glfw.OpenglForwardCompatible, glfw.True)
glfw.WindowHint(glfw.OpenglProfile, glfw.OpenglCoreProfile)
window, err := glfw.CreateWindow(800, 600, "Example", nil, nil)
if err != nil {
panic(err)
}
window.SetFramebufferSizeCallback(func(w *glfw.Window, width, height int) {
fmt.Printf("Framebuffer size is now %vx%v\n", width, height)
// Keep aspect ratio from camwidth/camheight
camRatio := camWidth / camHeight
bufRatio := float32(width) / float32(height)
var newWidth, newHeight float32
switch {
case camRatio > bufRatio:
newHeight = float32(width) / camRatio
newWidth = float32(width)
case bufRatio > camRatio:
newWidth = float32(height) * camRatio
newHeight = float32(height)
}
fmt.Printf("Viewport size is now %vx%v; cam ratio is %v; viewport ratio is %v;\n", newWidth, newHeight, camRatio, newWidth/newHeight)
gl.Viewport((width-int(newWidth))/2, (height-int(newHeight))/2, int(newWidth), int(newHeight))
})
defer window.Destroy()
window.MakeContextCurrent()
glfw.SwapInterval(1)
gl.Init()
// Enable blending
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
vao := gl.GenVertexArray()
vao.Bind()
vbo := gl.GenBuffer()
vbo.Bind(gl.ARRAY_BUFFER)
verticies := []float32{-0.5, 0.5,
0.5, 0.5,
0.5, -0.5,
-0.5, -0.5}
gl.BufferData(gl.ARRAY_BUFFER, len(verticies)*4, verticies, gl.STATIC_DRAW)
vertex_shader := gl.CreateShader(gl.VERTEX_SHADER)
vertex_shader.Source(vertex)
vertex_shader.Compile()
fmt.Println(vertex_shader.GetInfoLog())
defer vertex_shader.Delete()
fragment_shader := gl.CreateShader(gl.FRAGMENT_SHADER)
fragment_shader.Source(fragment)
fragment_shader.Compile()
fmt.Println(fragment_shader.GetInfoLog())
defer fragment_shader.Delete()
program := gl.CreateProgram()
program.AttachShader(vertex_shader)
program.AttachShader(fragment_shader)
program.BindFragDataLocation(0, "outColor")
program.Link()
program.Use()
defer program.Delete()
positionAttrib := program.GetAttribLocation("position")
positionAttrib.AttribPointer(2, gl.FLOAT, false, 0, nil)
positionAttrib.EnableArray()
defer positionAttrib.DisableArray()
modelMat := program.GetUniformLocation("modelView")
projMat := program.GetUniformLocation("projection")
spriteSize := program.GetUniformLocation("size")
cmd := exec.Command(os.Args[1], os.Args[2:]...)
stdoutReader, stdoutWriter := io.Pipe()
cmd.Stdout = stdoutWriter
input := bufio.NewReader(stdoutReader)
stdinReader, stdinWriter := io.Pipe()
cmd.Stdin = stdinReader
stderr, err := cmd.StderrPipe()
chkErr(err)
go io.Copy(os.Stderr, stderr)
err = cmd.Start()
chkErr(err)
window.SetKeyCallback(handleKey)
go func() {
runtime.LockOSThread()
for !window.ShouldClose() {
sendInput(stdinWriter)
//fmt.Fprintf(stdinWriter, "T %v\n", time.Now())
<-ticks
readCommands(input)
}
}()
frameCnt := 0
queueDepth := 0
then := time.Now()
for !window.ShouldClose() {
frameCnt++
queueDepth += len(commandBus)
if frameCnt%120 == 0 {
fmt.Printf("Queue depth: %v. Render time: %v. Decode time: %v.\n", queueDepth/120, time.Since(then)/120, decodeTime/time.Duration(decodes))
queueDepth = 0
then = time.Now()
decodeTime = time.Duration(0)
decodes = 0
}
for len(commandBus) > 0 {
(<-commandBus)()
}
halfwidth := camWidth / 2.0
halfheight := camHeight / 2.0
projection := mathgl.Ortho2D(camera.x-halfwidth, camera.x+halfwidth, camera.y+halfheight, camera.y-halfheight)
projection = mathgl.Scale3D(camera.sx, camera.sy, 1).Mul4(projection)
projection = mathgl.HomogRotate3DZ(camera.rot).Mul4(projection)
projMat.UniformMatrix4f(false, (*[16]float32)(&projection))
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
for _, sprite := range sprites {
sMat := mathgl.Scale3D(sprite.sx, sprite.sy, 1)
sMat = mathgl.HomogRotate3DZ(sprite.rot).Mul4(sMat)
sMat = mathgl.Translate3D(sprite.x, sprite.y, sprite.z).Mul4(sMat)
// temp hack bank in
sprite.bank = 1
sMap := findSMap(sprite.smap)
spriteSize.Uniform2f(float32(sMap.getWidth()*sprite.cellwidth), float32(sMap.getHeight()*sprite.cellheight))
modelMat.UniformMatrix4f(false, (*[16]float32)(&sMat))
gl.DrawArrays(gl.TRIANGLE_FAN, 0, 4)
}
window.SwapBuffers()
glfw.PollEvents()
if window.GetKey(glfw.KeyEscape) == glfw.Press {
window.SetShouldClose(true)
}
}
}
func (v *Video) Render() {
for running {
select {
case buf := <-v.videoTick:
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
v.prog.Use()
gl.ActiveTexture(gl.TEXTURE0)
v.texture.Bind(gl.TEXTURE_2D)
gl.TexImage2D(gl.TEXTURE_2D, 0, 3, 240, 224, 0, gl.RGBA,
gl.UNSIGNED_INT_8_8_8_8, buf)
gl.DrawArrays(gl.TRIANGLES, 0, 6)
if v.screen != nil {
sdl.GL_SwapBuffers()
v.fpsmanager.FramerateDelay()
}
case ev := <-sdl.Events:
switch e := ev.(type) {
case sdl.ResizeEvent:
v.ResizeEvent(int(e.W), int(e.H))
case sdl.QuitEvent:
os.Exit(0)
case sdl.KeyboardEvent:
switch e.Keysym.Sym {
case sdl.K_ESCAPE:
running = false
case sdl.K_r:
// Trigger reset interrupt
if e.Type == sdl.KEYDOWN {
// cpu.RequestInterrupt(InterruptReset)
}
case sdl.K_l:
if e.Type == sdl.KEYDOWN {
nes.LoadGameState()
}
case sdl.K_s:
if e.Type == sdl.KEYDOWN {
nes.SaveGameState()
}
case sdl.K_i:
if e.Type == sdl.KEYDOWN {
nes.AudioEnabled = !nes.AudioEnabled
}
case sdl.K_p:
if e.Type == sdl.KEYDOWN {
nes.TogglePause()
}
case sdl.K_d:
if e.Type == sdl.KEYDOWN {
jsHandler.ReloadFile(debugfile)
}
case sdl.K_m:
if e.Type == sdl.KEYDOWN {
nes.Handler.Handle("debug-mode")
}
case sdl.K_BACKSLASH:
if e.Type == sdl.KEYDOWN {
nes.Pause()
nes.StepFrame()
}
case sdl.K_1:
if e.Type == sdl.KEYDOWN {
v.ResizeEvent(256, 240)
}
case sdl.K_2:
if e.Type == sdl.KEYDOWN {
v.ResizeEvent(512, 480)
}
case sdl.K_3:
if e.Type == sdl.KEYDOWN {
v.ResizeEvent(768, 720)
}
case sdl.K_4:
if e.Type == sdl.KEYDOWN {
v.ResizeEvent(1024, 960)
}
}
switch e.Type {
case sdl.KEYDOWN:
nes.Pads[0].KeyDown(e, 0)
case sdl.KEYUP:
nes.Pads[0].KeyUp(e, 0)
}
}
}
}
}