// Draw draws the Sprite object.
func (sprite *Sprite) Draw(frame int) error {
gl.BindBuffer(gl.ARRAY_BUFFER, sprite.shape.vertexBuffer)
gl.VertexAttribPointer(gl.Uint(0), 2, gl.FLOAT, gl.FALSE, 0, gl.Offset(nil, 0))
gl.BindAttribLocation(paunchEffect.program, gl.Uint(0), gl.GLString("position"))
gl.BindBuffer(gl.ARRAY_BUFFER, 0)
if sprite.texcoordBuffer != 0 {
gl.ActiveTexture(gl.TEXTURE0)
gl.BindBuffer(gl.ARRAY_BUFFER, sprite.texcoordBuffer)
gl.VertexAttribPointer(gl.Uint(1), 2, gl.FLOAT, gl.FALSE, 0, gl.Offset(nil, 0))
gl.BindAttribLocation(paunchEffect.program, gl.Uint(0), gl.GLString("texcoord"))
gl.BindBuffer(gl.ARRAY_BUFFER, 0)
gl.BindTexture(gl.TEXTURE_2D, sprite.texture[frame])
gl.EnableVertexAttribArray(gl.Uint(1))
}
gl.EnableVertexAttribArray(gl.Uint(0))
gl.DrawArrays(gl.TRIANGLES, 0, gl.Sizei(sprite.shape.size))
gl.DisableVertexAttribArray(gl.Uint(0))
gl.DisableVertexAttribArray(gl.Uint(1))
gl.BindTexture(gl.TEXTURE_2D, 0)
return checkForErrors()
}
func (w *glfwBackend) Render(console *Console) {
if w.Running() {
w.mouse.Left.Released = false
w.mouse.Right.Released = false
w.mouse.Middle.Released = false
w.key = NOKEY
gl.Clear(gl.COLOR_BUFFER_BIT)
gl.BindTexture(gl.TEXTURE_2D, textures[1])
for y := 0; y < console.Height(); y++ {
for x := 0; x < console.Width(); x++ {
_, bg, _ := console.Get(x, y)
w.letter(x, y, 0, bg)
}
}
gl.BindTexture(gl.TEXTURE_2D, textures[0])
for y := 0; y < console.Height(); y++ {
for x := 0; x < console.Width(); x++ {
fg, _, ch := console.Get(x, y)
if position, ok := w.font.Map(ch); ok {
w.letter(x, y, position, fg)
}
}
}
glfw.SwapBuffers()
}
}
func (ms *ManaSource) Draw(local *LocalData, zoom float64, dx float64, dy float64) {
if local.nodeTextureData == nil {
// gl.Enable(gl.TEXTURE_2D)
local.nodeTextureData = make([]byte, ms.options.NumNodeRows*ms.options.NumNodeCols*3)
gl.GenTextures(1, &local.nodeTextureId)
gl.BindTexture(gl.TEXTURE_2D, local.nodeTextureId)
gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
gl.TexImage2D(
gl.TEXTURE_2D,
0,
gl.RGB,
gl.Sizei(ms.options.NumNodeRows),
gl.Sizei(ms.options.NumNodeCols),
0,
gl.RGB,
gl.UNSIGNED_BYTE,
gl.Pointer(&local.nodeTextureData[0]))
}
for i := range ms.rawNodes {
for c := 0; c < 3; c++ {
color_frac := ms.rawNodes[i].Mana[c] * 1.0 / ms.options.NodeMagnitude
color_range := float64(ms.options.MaxNodeBrightness - ms.options.MinNodeBrightness)
local.nodeTextureData[i*3+c] = byte(
color_frac*color_range + float64(ms.options.MinNodeBrightness))
}
}
gl.Enable(gl.TEXTURE_2D)
//gl.ActiveTexture(gl.TEXTURE0)
gl.BindTexture(gl.TEXTURE_2D, local.nodeTextureId)
gl.TexSubImage2D(
gl.TEXTURE_2D,
0,
0,
0,
gl.Sizei(ms.options.NumNodeRows),
gl.Sizei(ms.options.NumNodeCols),
gl.RGB,
gl.UNSIGNED_BYTE,
gl.Pointer(&local.nodeTextureData[0]))
base.EnableShader("nodes")
base.SetUniformI("nodes", "width", ms.options.NumNodeRows*3)
base.SetUniformI("nodes", "height", ms.options.NumNodeCols*3)
base.SetUniformI("nodes", "drains", 1)
base.SetUniformI("nodes", "tex0", 0)
base.SetUniformI("nodes", "tex1", 1)
base.SetUniformF("nodes", "zoom", float32(zoom))
gl.ActiveTexture(gl.TEXTURE0)
gl.BindTexture(gl.TEXTURE_2D, local.nodeTextureId)
// I have no idea why this value for move works, but it does. So, hooray.
move := (dx - dy) / 2
texture.RenderAdvanced(move, -move, dy, dx, 3.1415926535/2, true)
base.EnableShader("")
gl.Disable(gl.TEXTURE_2D)
}
func (d *Data) Bind() {
if d.texture == 0 {
if error_texture == 0 {
makeErrorTexture()
}
gl.BindTexture(gl.TEXTURE_2D, error_texture)
} else {
gl.BindTexture(gl.TEXTURE_2D, d.texture)
}
}
func (d *Data) Bind() {
if d.texture == 0 {
if error_texture == 0 {
makeErrorTexture()
}
gl.BindTexture(gl.TEXTURE_2D, error_texture)
base.Log().Printf("Ninindg error etextures")
} else {
gl.BindTexture(gl.TEXTURE_2D, d.texture)
}
}
// NewSprite creates a new Sprite object using the given data, which is
// expected to be in RGBA format. If you use PNG image files, you can use the
// NewSpriteFromImage shortcut function instead.
func NewSprite(x, y, width, height float64, data []byte, clip int) (*Sprite, error) {
verticies := []float64{
x, y,
x + width, y,
x, y + height,
x + width, y + height,
x + width, y,
x, y + height}
shape, err := NewShape(gl.TRIANGLES, verticies)
if err != nil {
return nil, err
}
sprite := &Sprite{texcoordBuffer: 0, texture: nil, shape: shape}
texCoords := []float32{
0, 0,
1, 0,
0, 1,
1, 1,
1, 0,
0, 1}
gl.GenBuffers(1, &sprite.texcoordBuffer)
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(sprite.texcoordBuffer))
gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(len(texCoords)*4), gl.Pointer(&texCoords[0]), gl.STREAM_DRAW)
gl.BindBuffer(gl.ARRAY_BUFFER, 0)
sprite.texture = make([]gl.Uint, clip)
gl.GenTextures(gl.Sizei(clip), &sprite.texture[0])
clips := make([][]byte, clip)
for i := range clips {
clips[i] = data[i*(len(data)/len(clips)) : (i+1)*(len(data)/len(clips))]
gl.BindTexture(gl.TEXTURE_2D, sprite.texture[len(clips)-1-i])
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA,
gl.Sizei(width), gl.Sizei(height),
0, gl.RGBA, gl.UNSIGNED_BYTE,
gl.Pointer(&clips[i][0]))
}
gl.BindTexture(gl.TEXTURE_2D, 0)
return sprite, checkForErrors()
}
func texinit(id int) {
gl.BindTexture(gl.TEXTURE_2D, gl.Uint(id))
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE)
}
func createTexture(r io.Reader) (textureId gl.Uint, err error) {
img, err := png.Decode(r)
if err != nil {
return 0, err
}
rgbaImg, ok := img.(*image.NRGBA)
if !ok {
return 0, errors.New("texture must be an NRGBA image")
}
gl.GenTextures(1, &textureId)
gl.BindTexture(gl.TEXTURE_2D, textureId)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
// flip image: first pixel is lower left corner
imgWidth, imgHeight := img.Bounds().Dx(), img.Bounds().Dy()
data := make([]byte, imgWidth*imgHeight*4)
lineLen := imgWidth * 4
dest := len(data) - lineLen
for src := 0; src < len(rgbaImg.Pix); src += rgbaImg.Stride {
copy(data[dest:dest+lineLen], rgbaImg.Pix[src:src+rgbaImg.Stride])
dest -= lineLen
}
gl.TexImage2D(gl.TEXTURE_2D, 0, 4, gl.Sizei(imgWidth), gl.Sizei(imgHeight), 0, gl.RGBA, gl.UNSIGNED_BYTE, gl.Pointer(&data[0]))
return textureId, nil
}
func upload(id gl.Uint, data []byte, stride int, w int, h int) {
gl.BindTexture(gl.TEXTURE_2D, id)
gl.PixelStorei(gl.UNPACK_ROW_LENGTH, gl.Int(stride))
gl.PixelStorei(gl.UNPACK_ALIGNMENT, 1)
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.LUMINANCE,
gl.Sizei(w), gl.Sizei(h), 0,
gl.LUMINANCE, gl.UNSIGNED_BYTE, gl.Pointer(&data[0]))
}
func (self *Tile) Draw() {
switch self.CurrentLOD {
case -1:
// TODO: draw single color
r, i := self.What.Center()
c := complex(r, i)
color := mandelbrotAt(c)
gl.BindTexture(gl.TEXTURE_2D, 0)
gl.Color3ub(color.R, color.G, color.B)
drawQuad(self.X, self.Y, self.W, self.H, 0, 0, 1, 1)
gl.Color3ub(255, 255, 255)
case 0:
gl.BindTexture(gl.TEXTURE_2D, self.Texture[0])
drawQuad(self.X, self.Y, self.W, self.H, 0, 0, 1, 1)
case 1:
gl.BindTexture(gl.TEXTURE_2D, self.Texture[1])
drawQuad(self.X, self.Y, self.W, self.H, 0, 0, 1, 1)
default:
panic("unreachable")
}
}
func makeErrorTexture() {
gl.Enable(gl.TEXTURE_2D)
gl.GenTextures(1, (*gl.Uint)(&error_texture))
gl.BindTexture(gl.TEXTURE_2D, error_texture)
gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
pink := []byte{255, 0, 255, 255}
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, 1, 1, 0, gl.RGBA, gl.BYTE, gl.Pointer(&pink[0]))
}
func (m *Model) draw() {
m.shader.use()
gl.ActiveTexture(gl.TEXTURE0)
gl.BindTexture(gl.TEXTURE_2D, m.texture_id)
gl.Uniform1i(m.shader.uniform_texture, 0)
//texcoord
if m.has_uv {
gl.BindBuffer(gl.ARRAY_BUFFER, m.texcoord)
gl.EnableVertexAttribArray(m.shader.attribute_texcoord)
gl.VertexAttribPointer(
m.shader.attribute_texcoord,
2,
gl.FLOAT,
gl.FALSE,
0,
gl.Pointer(nil))
}
gl.BindBuffer(gl.ARRAY_BUFFER, m.buffer)
gl.EnableVertexAttribArray(m.shader.attribute_vertex)
gl.VertexAttribPointer(
m.shader.attribute_vertex,
3,
gl.FLOAT,
gl.FALSE,
0,
gl.Pointer(nil))
gl.BindBuffer(gl.ARRAY_BUFFER, m.normal_buf)
gl.EnableVertexAttribArray(m.shader.attribute_normal)
gl.VertexAttribPointer(
m.shader.attribute_normal,
3,
gl.FLOAT,
gl.FALSE,
0,
gl.Pointer(nil))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, m.index)
gl.DrawElements(gl.TRIANGLES, gl.Sizei(len(m.indices)), gl.UNSIGNED_INT, gl.Pointer(nil))
gl.BindBuffer(gl.ARRAY_BUFFER, 0)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, 0)
gl.DisableVertexAttribArray(m.shader.attribute_vertex)
gl.DisableVertexAttribArray(m.shader.attribute_normal)
if m.has_uv {
gl.DisableVertexAttribArray(m.shader.attribute_texcoord)
}
}
func reuploadTexture(tex *gl.Uint, w, h int, data []byte) {
if *tex > 0 {
gl.BindTexture(gl.TEXTURE_2D, *tex)
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.Sizei(w), gl.Sizei(h), 0,
gl.RGBA, gl.UNSIGNED_BYTE, gl.Pointer(&data[0]))
if gl.GetError() != gl.NO_ERROR {
gl.DeleteTextures(1, tex)
panic("Failed to reupload texture")
}
return
}
*tex = uploadTexture_RGBA32(w, h, data)
}
func (s *Sprite) Bind() (x, y, x2, y2 float64) {
var rect FrameRect
var sh *sheet
var ok bool
fid := frameId{facing: s.facing, node: s.anim_node.Id()}
var dx, dy float64
if rect, ok = s.shared.connector.rects[fid]; ok {
sh = s.shared.connector
} else if rect, ok = s.shared.facings[s.facing].rects[fid]; ok {
sh = s.shared.facings[s.facing]
} else {
gl.BindTexture(gl.TEXTURE_2D, error_texture)
return
}
gl.BindTexture(gl.TEXTURE_2D, sh.texture)
dx = float64(sh.dx)
dy = float64(sh.dy)
x = float64(rect.X) / dx
y = float64(rect.Y) / dy
x2 = float64(rect.X2) / dx
y2 = float64(rect.Y2) / dy
return
}
func (m *Model) initTexture() {
//file, err := os.Open("model/test.png")
file, err := os.Open("model/ceil.png")
if err != nil {
log.Fatal(err)
}
defer file.Close()
img, _, err := image.Decode(file)
if err != nil {
log.Fatal(err)
}
rgbaImg, ok := img.(*image.NRGBA)
if !ok {
//return 0, errors.New("texture must be an NRGBA image")
log.Fatal("image is not rgba")
}
gl.GenTextures(1, &m.texture_id)
gl.BindTexture(gl.TEXTURE_2D, m.texture_id)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
// flip image: first pixel is lower left corner
img_width, img_height := img.Bounds().Dx(), img.Bounds().Dy()
data := make([]byte, img_width*img_height*4)
line_len := img_width * 4
dest := len(data) - line_len
for src := 0; src < len(rgbaImg.Pix); src += rgbaImg.Stride {
copy(data[dest:dest+line_len], rgbaImg.Pix[src:src+rgbaImg.Stride])
dest -= line_len
}
gl.TexImage2D(
gl.TEXTURE_2D,
0,
gl.RGBA, //4,
gl.Sizei(img_width),
gl.Sizei(img_height),
0,
gl.RGBA,
gl.UNSIGNED_BYTE,
gl.Pointer(&data[0]))
}
func uploadTexture_RGBA32(w, h int, data []byte) gl.Uint {
var id gl.Uint
gl.GenTextures(1, &id)
gl.BindTexture(gl.TEXTURE_2D, id)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.CLAMP_TO_EDGE)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.CLAMP_TO_EDGE)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_R, gl.CLAMP_TO_EDGE)
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.Sizei(w), gl.Sizei(h), 0, gl.RGBA,
gl.UNSIGNED_BYTE, gl.Pointer(&data[0]))
if gl.GetError() != gl.NO_ERROR {
gl.DeleteTextures(1, &id)
panic("Failed to load a texture")
}
return id
}
func DrawStarTex(t *data.Star) {
// Find the center point of the texture to rotate around
xav := (t.X1 + t.X2) / 2
yav := (t.Y1 + t.Y2) / 2
//Translate there, rotate, translate back
gl.MatrixMode(gl.MODELVIEW)
gl.Translatef(xav, yav, 0)
gl.Rotatef(gl.Float(t.Theta), 0, 0, 1)
gl.Translatef(-xav, -yav, 0)
//Bind our texture to be drawn by id
gl.Color3f(1, 1, 1)
gl.Enable(gl.TEXTURE_2D)
gl.BindTexture(gl.TEXTURE_2D, t.TexId)
// Draw a rectangle with the texture stretched to the corners
gl.Begin(gl.QUADS)
// Stretch the texture to its 4 corners.
gl.TexCoord2d(0, 0)
gl.Vertex2f(t.X1, t.Y1)
gl.TexCoord2d(0, 1)
gl.Vertex2f(t.X1, t.Y2)
gl.TexCoord2d(1, 1)
gl.Vertex2f(t.X2, t.Y2)
gl.TexCoord2d(1, 0)
gl.Vertex2f(t.X2, t.Y1)
gl.End()
// Unbind the texture in case something else wants to draw
gl.Disable(gl.TEXTURE_2D)
// Reset the matrix
gl.LoadIdentity()
}
func (m *Manager) LoadSprite(path string) (*Sprite, error) {
// We can't run this during an init() function because it will get queued to
// run before the opengl context is created, so we just check here and run
// it if we haven't run it before.
gen_tex_once.Do(func() {
render.Queue(func() {
gl.Enable(gl.TEXTURE_2D)
gl.GenTextures(1, &error_texture)
gl.BindTexture(gl.TEXTURE_2D, error_texture)
gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
pink := []byte{255, 0, 255, 255}
gl.TexImage2D(
gl.TEXTURE_2D,
0,
gl.RGBA,
1,
1,
0,
gl.RGBA,
gl.UNSIGNED_INT,
gl.Pointer(&pink[0]))
})
})
path = filepath.Clean(path)
err := m.loadSharedSprite(path)
if err != nil {
return nil, err
}
var s Sprite
m.mutex.Lock()
s.shared = m.shared[path]
m.mutex.Unlock()
s.anim_node = s.shared.anim_start
s.state_node = s.shared.state_start
return &s, nil
}
// Sets up anything that wouldn't have been loaded from disk, including
// all opengl data, and sets up finalizers for that data.
func (d *Dictionary) setupGlStuff() {
d.dlists = make(map[string]uint32)
d.strs = make(map[string]strBuffer)
d.pars = make(map[string]strBuffer)
// TODO: This finalizer is untested
runtime.SetFinalizer(d, func(d *Dictionary) {
render.Queue(func() {
for _, v := range d.dlists {
gl.DeleteLists(gl.Uint(v), 1)
}
})
})
render.Queue(func() {
gl.Enable(gl.TEXTURE_2D)
gl.GenTextures(1, (*gl.Uint)(&d.texture))
gl.BindTexture(gl.TEXTURE_2D, gl.Uint(d.texture))
gl.PixelStorei(gl.UNPACK_ALIGNMENT, 1)
gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
gl.TexImage2D(
gl.TEXTURE_2D,
0,
gl.ALPHA,
gl.Sizei(d.data.Dx),
gl.Sizei(d.data.Dy),
0,
gl.ALPHA,
gl.UNSIGNED_BYTE,
gl.Pointer(&d.data.Pix[0]))
gl.Disable(gl.TEXTURE_2D)
})
}
func (s *sheet) makeTexture(pixer <-chan []byte) {
gl.Enable(gl.TEXTURE_2D)
gl.GenTextures(1, &s.texture)
gl.BindTexture(gl.TEXTURE_2D, s.texture)
gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR_MIPMAP_LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
data := <-pixer
gl.TexImage2D(
gl.TEXTURE_2D,
0,
gl.RGBA,
gl.Sizei(s.dx),
gl.Sizei(s.dy),
0,
gl.RGBA,
gl.UNSIGNED_INT,
gl.Pointer(&data[0]))
memory.FreeBlock(data)
}
func (ms *ManaSource) Draw(gw *GameWindow, dx float64, dy float64) {
if gw.nodeTextureData == nil {
// gl.Enable(gl.TEXTURE_2D)
gw.nodeTextureData = make([]byte, ms.options.NumNodeRows*ms.options.NumNodeCols*3)
gl.GenTextures(1, &gw.nodeTextureId)
gl.BindTexture(gl.TEXTURE_2D, gw.nodeTextureId)
gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
gl.TexImage2D(
gl.TEXTURE_2D,
0,
gl.RGB,
gl.Sizei(ms.options.NumNodeCols),
gl.Sizei(ms.options.NumNodeRows),
0,
gl.RGB,
gl.UNSIGNED_BYTE,
gl.Pointer(&gw.nodeTextureData[0]))
// gl.ActiveTexture(gl.TEXTURE1)
gl.GenTextures(1, &gw.nodeWarpingTexture)
gl.BindTexture(gl.TEXTURE_1D, gw.nodeWarpingTexture)
gl.TexEnvf(gl.TEXTURE_ENV, gl.TEXTURE_ENV_MODE, gl.MODULATE)
gl.TexParameterf(gl.TEXTURE_1D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_1D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_1D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.TexParameterf(gl.TEXTURE_1D, gl.TEXTURE_WRAP_T, gl.REPEAT)
gw.nodeWarpingData = make([]byte, 4*10)
gl.TexImage1D(
gl.TEXTURE_1D,
0,
gl.RGBA,
gl.Sizei(len(gw.nodeWarpingData)/4),
0,
gl.RGBA,
gl.UNSIGNED_BYTE,
gl.Pointer(&gw.nodeWarpingData[0]))
}
for x := range ms.nodes {
for y, node := range ms.nodes[x] {
pos := 3 * (y*ms.options.NumNodeCols + x)
for c := 0; c < 3; c++ {
color_frac := node.Mana[c] * 1.0 / ms.options.NodeMagnitude
color_range := float64(ms.options.MaxNodeBrightness - ms.options.MinNodeBrightness)
gw.nodeTextureData[pos+c] = byte(
color_frac*color_range + float64(ms.options.MinNodeBrightness))
}
}
}
gl.Enable(gl.TEXTURE_1D)
gl.Enable(gl.TEXTURE_2D)
//gl.ActiveTexture(gl.TEXTURE0)
gl.BindTexture(gl.TEXTURE_2D, gw.nodeTextureId)
gl.TexSubImage2D(
gl.TEXTURE_2D,
0,
0,
0,
gl.Sizei(ms.options.NumNodeCols),
gl.Sizei(ms.options.NumNodeRows),
gl.RGB,
gl.UNSIGNED_BYTE,
gl.Pointer(&gw.nodeTextureData[0]))
gl.ActiveTexture(gl.TEXTURE1)
for i, ent := range gw.game.Ents {
p := ent.Pos()
gw.nodeWarpingData[3*i+0] = byte(p.X / float64(gw.game.Dx) * 255)
gw.nodeWarpingData[3*i+1] = -byte(p.Y / float64(gw.game.Dy) * 255)
gw.nodeWarpingData[3*i+2] = 255
}
gl.TexImage1D(
gl.TEXTURE_1D,
0,
gl.RGBA,
gl.Sizei(len(gw.nodeWarpingData)/4),
0,
gl.RGBA,
gl.UNSIGNED_BYTE,
gl.Pointer(&gw.nodeWarpingData[0]))
base.EnableShader("nodes")
base.SetUniformI("nodes", "width", ms.options.NumNodeCols)
base.SetUniformI("nodes", "height", ms.options.NumNodeRows)
base.SetUniformI("nodes", "drains", 1)
base.SetUniformI("nodes", "tex0", 0)
base.SetUniformI("nodes", "tex1", 1)
gl.ActiveTexture(gl.TEXTURE1)
gl.BindTexture(gl.TEXTURE_1D, gw.nodeWarpingTexture)
gl.ActiveTexture(gl.TEXTURE0)
gl.BindTexture(gl.TEXTURE_2D, gw.nodeTextureId)
texture.Render(0, dy, dx, -dy)
base.EnableShader("")
gl.Disable(gl.TEXTURE_2D)
gl.Disable(gl.TEXTURE_1D)
}
func drawScene() {
gl.Clear(gl.COLOR_BUFFER_BIT | gl.DEPTH_BUFFER_BIT)
gl.MatrixMode(gl.MODELVIEW)
gl.LoadIdentity()
gl.Translatef(0, 0, -3.0)
gl.Rotatef(rotx, 1, 0, 0)
gl.Rotatef(roty, 0, 1, 0)
rotx += 0.5
roty += 0.5
gl.BindTexture(gl.TEXTURE_2D, texture)
gl.Color4f(1, 1, 1, 1)
gl.Begin(gl.QUADS)
gl.Normal3f(0, 0, 1)
gl.TexCoord2f(0, 0)
gl.Vertex3f(-1, -1, 1)
gl.TexCoord2f(1, 0)
gl.Vertex3f(1, -1, 1)
gl.TexCoord2f(1, 1)
gl.Vertex3f(1, 1, 1)
gl.TexCoord2f(0, 1)
gl.Vertex3f(-1, 1, 1)
gl.Normal3f(0, 0, -1)
gl.TexCoord2f(1, 0)
gl.Vertex3f(-1, -1, -1)
gl.TexCoord2f(1, 1)
gl.Vertex3f(-1, 1, -1)
gl.TexCoord2f(0, 1)
gl.Vertex3f(1, 1, -1)
gl.TexCoord2f(0, 0)
gl.Vertex3f(1, -1, -1)
gl.Normal3f(0, 1, 0)
gl.TexCoord2f(0, 1)
gl.Vertex3f(-1, 1, -1)
gl.TexCoord2f(0, 0)
gl.Vertex3f(-1, 1, 1)
gl.TexCoord2f(1, 0)
gl.Vertex3f(1, 1, 1)
gl.TexCoord2f(1, 1)
gl.Vertex3f(1, 1, -1)
gl.Normal3f(0, -1, 0)
gl.TexCoord2f(1, 1)
gl.Vertex3f(-1, -1, -1)
gl.TexCoord2f(0, 1)
gl.Vertex3f(1, -1, -1)
gl.TexCoord2f(0, 0)
gl.Vertex3f(1, -1, 1)
gl.TexCoord2f(1, 0)
gl.Vertex3f(-1, -1, 1)
gl.Normal3f(1, 0, 0)
gl.TexCoord2f(1, 0)
gl.Vertex3f(1, -1, -1)
gl.TexCoord2f(1, 1)
gl.Vertex3f(1, 1, -1)
gl.TexCoord2f(0, 1)
gl.Vertex3f(1, 1, 1)
gl.TexCoord2f(0, 0)
gl.Vertex3f(1, -1, 1)
gl.Normal3f(-1, 0, 0)
gl.TexCoord2f(0, 0)
gl.Vertex3f(-1, -1, -1)
gl.TexCoord2f(1, 0)
gl.Vertex3f(-1, -1, 1)
gl.TexCoord2f(1, 1)
gl.Vertex3f(-1, 1, 1)
gl.TexCoord2f(0, 1)
gl.Vertex3f(-1, 1, -1)
gl.End()
}
func (w *glfwBackend) Open(width, height, zoom int, fs bool, font *FontData) {
if err := glfw.Init(); err != nil {
panic(err)
}
w.font = font
w.zoom = zoom
w.width = width
w.height = height
var fwidth = width * font.CellWidth * zoom
var fheight = height * font.CellHeight * zoom
var twidth = fwidth
var theight = fheight
flag := glfw.Windowed
if fs {
flag = glfw.Fullscreen
dm := glfw.DesktopMode()
twidth = dm.W
theight = dm.H
}
glfw.OpenWindowHint(glfw.WindowNoResize, gl.TRUE)
err := glfw.OpenWindow(twidth, theight, 8, 8, 8, 8, 0, 0, flag)
if err != nil {
panic(err)
}
w.key = NOKEY
glfw.SetWindowCloseCallback(func() int { w.Close(); return 0 })
glfw.SetKeyCallback(func(key, state int) { w.setKey(key, state) })
glfw.SetCharCallback(func(key, state int) { w.setKey(key, state) })
glfw.Enable(glfw.KeyRepeat)
w.mouse = new(MouseData)
glfw.Enable(glfw.MouseCursor)
glfw.SetMousePosCallback(func(x, y int) { w.mouseMove(x, y) })
glfw.SetMouseButtonCallback(func(but, state int) { w.mousePress(but, state) })
glfw.Enable(glfw.MouseCursor)
xoff := float32(twidth-fwidth) / 2.0
yoff := float32(theight-fheight) / 2.0
fc := float32(font.CellWidth * zoom)
fch := float32(font.CellHeight * zoom)
for y := 0; y < height; y++ {
for x := 0; x < width; x++ {
cx := xoff + float32(x)*fc
cy := yoff + float32(y)*fch
w.verts = append(w.verts, cx, cy, cx, cy+fch, cx+fc, cy+fch, cx+fc, cy)
}
}
runtime.LockOSThread()
glInit(twidth, theight)
m := font.Image.(*image.RGBA)
w.s = float32(font.CellWidth) / float32(m.Bounds().Max.X)
w.t = float32(font.CellHeight) / float32(m.Bounds().Max.Y)
textures = make([]gl.Uint, 2)
gl.GenTextures(2, &textures[0])
gl.BindTexture(gl.TEXTURE_2D, textures[0])
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.Sizei(m.Bounds().Max.X), gl.Sizei(m.Bounds().Max.Y), 0, gl.RGBA, gl.UNSIGNED_BYTE, gl.Pointer(&m.Pix[0]))
m = image.NewRGBA(image.Rect(0, 0, font.CellWidth, font.CellHeight))
draw.Draw(m, m.Bounds(), &image.Uniform{White}, image.ZP, draw.Src)
gl.BindTexture(gl.TEXTURE_2D, textures[1])
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.NEAREST)
gl.TexParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.NEAREST)
gl.TexImage2D(gl.TEXTURE_2D, 0, gl.RGBA, gl.Sizei(m.Bounds().Max.X), gl.Sizei(m.Bounds().Max.Y), 0, gl.RGBA, gl.UNSIGNED_BYTE, gl.Pointer(&m.Pix[0]))
w.open = true
}
func handleLoadRequest(req loadRequest) {
f, _ := os.Open(req.path)
im, _, err := image.Decode(f)
f.Close()
if err != nil {
return
}
gray := true
dx := im.Bounds().Dx()
dy := im.Bounds().Dy()
for i := 0; i < dx; i++ {
for j := 0; j < dy; j++ {
r, g, b, _ := im.At(i, j).RGBA()
if r != g || g != b {
gray = false
break
}
}
if !gray {
break
}
}
var canvas draw.Image
var pix []byte
if gray {
ga := NewGrayAlpha(im.Bounds())
pix = ga.Pix
canvas = ga
} else {
pix = memory.GetBlock(4 * req.data.dx * req.data.dy)
canvas = &image.RGBA{pix, 4 * req.data.dx, im.Bounds()}
}
draw.Draw(canvas, im.Bounds(), im, image.Point{}, draw.Src)
load_mutex.Lock()
load_count += len(pix)
manual_unlock := false
// This prevents us from trying to send too much to opengl in a single
// frame. If we go over the threshold then we hold the lock until we're
// done sending data to opengl, then other requests will be free to
// queue up and they will run on the next frame.
if load_count < load_threshold {
load_mutex.Unlock()
} else {
manual_unlock = true
}
render.Queue(func() {
{
gl.Enable(gl.TEXTURE_2D)
gl.GenTextures(1, (*gl.Uint)(&req.data.texture))
gl.BindTexture(gl.TEXTURE_2D, req.data.texture)
gl.PixelStorei(gl.UNPACK_ALIGNMENT, 1)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.TexParameterf(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
}
if gray {
gl.TexImage2D(
gl.TEXTURE_2D,
0,
gl.LUMINANCE_ALPHA,
gl.Sizei(req.data.dx),
gl.Sizei(req.data.dy),
0,
gl.LUMINANCE_ALPHA,
gl.BYTE,
gl.Pointer(&pix[0]))
} else {
gl.TexImage2D(
gl.TEXTURE_2D,
0,
gl.RGBA,
gl.Sizei(req.data.dx),
gl.Sizei(req.data.dy),
0,
gl.RGBA,
gl.UNSIGNED_BYTE,
gl.Pointer(&pix[0]))
// gl.TexImage2D(target, level, internalformat, width, height, border, format, type_, pixels)
// glu.Build2DMipmaps(gl.TEXTURE_2D, gl.RGBA, req.data.dx, req.data.dy, gl.RGBA, pix)
}
memory.FreeBlock(pix)
if manual_unlock {
load_count = 0
load_mutex.Unlock()
}
})
}
func main() {
runtime.LockOSThread()
flag.Parse()
if *workers <= 0 {
*workers = 1
}
runtime.GOMAXPROCS(*workers + 1)
buildPalette()
sdl.Init(sdl.INIT_VIDEO)
defer sdl.Quit()
if !*noVSync {
sdl.GL_SetAttribute(sdl.GL_SWAP_CONTROL, 1)
}
if sdl.SetVideoMode(512, 512, 32, sdl.OPENGL) == nil {
panic("sdl error")
}
sdl.WM_SetCaption("Gomandel", "Gomandel")
if err := gl.Init(); err != nil {
panic(err)
}
gl.Enable(gl.TEXTURE_2D)
gl.Viewport(0, 0, 512, 512)
gl.MatrixMode(gl.PROJECTION)
gl.LoadIdentity()
gl.Ortho(0, 512, 512, 0, -1, 1)
gl.ClearColor(0, 0, 0, 0)
//-----------------------------------------------------------------------------
var dndDragging bool = false
var dnd3 bool = false
var dndStart Point
var dndEnd Point
initialRect := Rect{-1.5, -1.5, 3, 3}
rect := initialRect
tm := NewTileManager(512, 512)
tm.ZoomRequest(&rect)
running := true
for running {
for {
var event interface{}
select {
case event = <-sdl.Events:
default:
}
if event == nil {
break
}
switch e := event.(type) {
case sdl.QuitEvent:
running = false
case sdl.MouseButtonEvent:
if e.Type == sdl.MOUSEBUTTONDOWN {
dndDragging = true
dndStart.X = gl.Int(e.X)
dndStart.Y = gl.Int(e.Y)
dndEnd = dndStart
if e.Button == 3 {
dnd3 = true
} else {
dndDragging = true
}
} else {
dndDragging = false
dndEnd.X = gl.Int(e.X)
dndEnd.Y = gl.Int(e.Y)
switch e.Button {
case 1:
rect = rectFromSelection(dndStart, dndEnd, 512, 512, rect)
tm.ZoomRequest(&rect)
case 2:
rect = initialRect
tm.ZoomRequest(&rect)
case 3:
dnd3 = false
}
}
case sdl.MouseMotionEvent:
if dnd3 {
dndEnd.X = gl.Int(e.X)
dndEnd.Y = gl.Int(e.Y)
rect = moveRectBy(rect, dndStart, dndEnd, 512, 512)
tm.MoveRequest(rect)
dndStart = dndEnd
} else if dndDragging {
dndEnd.X = gl.Int(e.X)
dndEnd.Y = gl.Int(e.Y)
}
}
}
tm.Update()
gl.Clear(gl.COLOR_BUFFER_BIT)
tm.Draw()
gl.BindTexture(gl.TEXTURE_2D, 0)
if dndDragging {
drawSelection(dndStart, dndEnd)
}
sdl.GL_SwapBuffers()
}
}
func (d *Dictionary) RenderString(s string, x, y, z, height float64, just Justification) {
if len(s) == 0 {
return
}
strbuf, ok := d.strs[s]
if !ok {
defer d.RenderString(s, x, y, z, height, just)
} else {
render.EnableShader("glop.font")
diff := 20/math.Pow(height, 1.0) + 5*math.Pow(d.data.Scale, 1.0)/math.Pow(height, 1.0)
if diff > 0.4 {
// TODO: Need to come up with decent values here
diff = 0.4
}
render.SetUniformF("glop.font", "dist_min", float32(0.5-diff))
render.SetUniformF("glop.font", "dist_max", float32(0.5+diff))
defer render.EnableShader("")
}
size := unsafe.Sizeof(dictVert{})
scale := height / float64(d.data.Maxy-d.data.Miny)
width := float32(d.figureWidth(s) * scale)
x_pos := float32(x)
switch just {
case Center:
x_pos -= width / 2
case Right:
x_pos -= width
}
if ok {
gl.PushMatrix()
defer gl.PopMatrix()
gl.Translated(gl.Double(x_pos), gl.Double(y), gl.Double(z))
gl.Scaled(gl.Double(scale), gl.Double(scale), 1)
gl.PushAttrib(gl.COLOR_BUFFER_BIT)
defer gl.PopAttrib()
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Enable(gl.TEXTURE_2D)
gl.BindTexture(gl.TEXTURE_2D, gl.Uint(d.texture))
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(strbuf.vbuffer))
gl.EnableClientState(gl.VERTEX_ARRAY)
gl.VertexPointer(2, gl.FLOAT, gl.Sizei(size), nil)
gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(size), gl.Pointer(unsafe.Offsetof(strbuf.vs[0].u)))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(strbuf.ibuffer))
gl.DrawElements(gl.TRIANGLES, gl.Sizei(len(strbuf.is)), gl.UNSIGNED_SHORT, nil)
gl.DisableClientState(gl.VERTEX_ARRAY)
gl.DisableClientState(gl.TEXTURE_COORD_ARRAY)
gl.Disable(gl.TEXTURE_2D)
return
}
x_pos = 0
var prev rune
for _, r := range s {
if _, ok := d.data.Kerning[prev]; ok {
x_pos += float32(d.data.Kerning[prev][r])
}
prev = r
info := d.getInfo(r)
xleft := x_pos + float32(info.Full_bounds.Min.X)
xright := x_pos + float32(info.Full_bounds.Max.X)
ytop := float32(info.Full_bounds.Max.Y) + float32(-d.data.Miny)
ybot := float32(info.Full_bounds.Min.Y) + float32(-d.data.Miny)
start := uint16(len(strbuf.vs))
strbuf.is = append(strbuf.is, start+0)
strbuf.is = append(strbuf.is, start+1)
strbuf.is = append(strbuf.is, start+2)
strbuf.is = append(strbuf.is, start+0)
strbuf.is = append(strbuf.is, start+2)
strbuf.is = append(strbuf.is, start+3)
strbuf.vs = append(strbuf.vs, dictVert{
x: xleft,
y: ytop,
u: float32(info.Pos.Min.X) / float32(d.data.Dx),
v: float32(info.Pos.Max.Y) / float32(d.data.Dy),
})
strbuf.vs = append(strbuf.vs, dictVert{
x: xleft,
y: ybot,
u: float32(info.Pos.Min.X) / float32(d.data.Dx),
v: float32(info.Pos.Min.Y) / float32(d.data.Dy),
})
strbuf.vs = append(strbuf.vs, dictVert{
x: xright,
y: ybot,
u: float32(info.Pos.Max.X) / float32(d.data.Dx),
v: float32(info.Pos.Min.Y) / float32(d.data.Dy),
})
strbuf.vs = append(strbuf.vs, dictVert{
x: xright,
y: ytop,
u: float32(info.Pos.Max.X) / float32(d.data.Dx),
v: float32(info.Pos.Max.Y) / float32(d.data.Dy),
})
x_pos += float32(info.Advance) // - float32((info.Full_bounds.Dx() - info.Bounds.Dx()))
}
gl.GenBuffers(1, (*gl.Uint)(&strbuf.vbuffer))
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(strbuf.vbuffer))
gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(int(size)*len(strbuf.vs)), gl.Pointer(&strbuf.vs[0].x), gl.STATIC_DRAW)
gl.GenBuffers(1, (*gl.Uint)(&strbuf.ibuffer))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(strbuf.ibuffer))
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, gl.Sizeiptr(int(unsafe.Sizeof(strbuf.is[0]))*len(strbuf.is)), gl.Pointer(&strbuf.is[0]), gl.STATIC_DRAW)
d.strs[s] = strbuf
}