// 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.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)
glu.Build2DMipmaps(gl.TEXTURE_2D, 4, d.data.Dx, d.data.Dy, gl.RGBA, d.data.Pix)
gl.Disable(gl.TEXTURE_2D)
})
}
func EnableShader(name string) {
prog_obj, ok := shader_progs[name]
if ok {
gl.UseProgram(gl.Uint(prog_obj))
} else {
gl.UseProgram(0)
if name != "" && !warned_names[name] {
Warn().Printf("Tried to use unknown shader '%s'", name)
warned_names[name] = true
}
}
}
func SetUniformF(shader, variable string, f float32) {
prog, ok := shader_progs[shader]
if !ok {
if !warned_names[shader] {
Warn().Printf("Tried to set a uniform in an unknown shader '%s'", shader)
warned_names[shader] = true
}
return
}
bvariable := []byte(fmt.Sprintf("%s\x00", variable))
loc := gl.GetUniformLocation(gl.Uint(prog), (*gl.Char)(unsafe.Pointer(&bvariable[0])))
gl.Uniform1f(loc, gl.Float(f))
}
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)
}
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)
return
}
x_pos = 0
for _, r := range s {
info := d.getInfo(r)
xleft := x_pos + float32(info.Bounds.Min.X)
xright := x_pos + float32(info.Bounds.Max.X)
ytop := float32(d.data.Maxy - info.Bounds.Min.Y)
ybot := float32(height) + float32(d.data.Miny-info.Bounds.Max.Y)
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: ybot,
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: ytop,
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: ytop,
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: ybot,
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)
}
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
}
func (room *Room) setupGlStuff() {
if room.X == room.gl.x &&
room.Y == room.gl.y &&
room.Size.Dx == room.gl.dx &&
room.Size.Dy == room.gl.dy &&
room.Wall.Data().Dx() == room.gl.wall_tex_dx &&
room.Wall.Data().Dy() == room.gl.wall_tex_dy {
return
}
room.gl.x = room.X
room.gl.y = room.Y
room.gl.dx = room.Size.Dx
room.gl.dy = room.Size.Dy
room.gl.wall_tex_dx = room.Wall.Data().Dx()
room.gl.wall_tex_dy = room.Wall.Data().Dy()
if room.vbuffer != 0 {
gl.DeleteBuffers(1, (*gl.Uint)(&room.vbuffer))
gl.DeleteBuffers(1, (*gl.Uint)(&room.left_buffer))
gl.DeleteBuffers(1, (*gl.Uint)(&room.right_buffer))
gl.DeleteBuffers(1, (*gl.Uint)(&room.floor_buffer))
}
dx := float32(room.Size.Dx)
dy := float32(room.Size.Dy)
var dz float32
if room.Wall.Data().Dx() > 0 {
dz = -float32(room.Wall.Data().Dy()*(room.Size.Dx+room.Size.Dy)) / float32(room.Wall.Data().Dx())
}
// Conveniently casted values
frx := float32(room.X)
fry := float32(room.Y)
frdx := float32(room.Size.Dx)
frdy := float32(room.Size.Dy)
// c is the u-texcoord of the corner of the room
c := frdx / (frdx + frdy)
// lt_llx := frx / LosTextureSize
// lt_lly := fry / LosTextureSize
// lt_urx := (frx + frdx) / LosTextureSize
// lt_ury := (fry + frdy) / LosTextureSize
lt_llx_ep := (frx + 0.5) / LosTextureSize
lt_lly_ep := (fry + 0.5) / LosTextureSize
lt_urx_ep := (frx + frdx - 0.5) / LosTextureSize
lt_ury_ep := (fry + frdy - 0.5) / LosTextureSize
vs := []roomVertex{
// Walls
{0, dy, 0, 0, 1, lt_ury_ep, lt_llx_ep},
{dx, dy, 0, c, 1, lt_ury_ep, lt_urx_ep},
{dx, 0, 0, 1, 1, lt_lly_ep, lt_urx_ep},
{0, dy, dz, 0, 0, lt_ury_ep, lt_llx_ep},
{dx, dy, dz, c, 0, lt_ury_ep, lt_urx_ep},
{dx, 0, dz, 1, 0, lt_lly_ep, lt_urx_ep},
// Floor
// This is the bulk of the floor, containing all but the outer edges of
// the room. los_tex can map directly onto this so we don't need to do
// anything weird here.
{0.5, 0.5, 0, 0.5 / dx, 1 - 0.5/dy, lt_lly_ep, lt_llx_ep},
{0.5, dy - 0.5, 0, 0.5 / dx, 0.5 / dy, lt_ury_ep, lt_llx_ep},
{dx - 0.5, dy - 0.5, 0, 1 - 0.5/dx, 0.5 / dy, lt_ury_ep, lt_urx_ep},
{dx - 0.5, 0.5, 0, 1 - 0.5/dx, 1 - 0.5/dy, lt_lly_ep, lt_urx_ep},
{0, 0.5, 0, 0, 1 - 0.5/dy, lt_lly_ep, lt_llx_ep},
{0, dy - 0.5, 0, 0, 0.5 / dy, lt_ury_ep, lt_llx_ep},
{0.5, dy - 0.5, 0, 0.5 / dx, 0.5 / dy, lt_ury_ep, lt_llx_ep},
{0.5, 0.5, 0, 0.5 / dx, 1 - 0.5/dy, lt_lly_ep, lt_llx_ep},
{0.5, 0, 0, 0.5 / dx, 1, lt_lly_ep, lt_llx_ep},
{0.5, 0.5, 0, 0.5 / dx, 1 - 0.5/dy, lt_lly_ep, lt_llx_ep},
{dx - 0.5, 0.5, 0, 1 - 0.5/dx, 1 - 0.5/dy, lt_lly_ep, lt_urx_ep},
{dx - 0.5, 0, 0, 1 - 0.5/dx, 1, lt_lly_ep, lt_urx_ep},
{dx - 0.5, 0.5, 0, 1 - 0.5/dx, 1 - 0.5/dy, lt_lly_ep, lt_urx_ep},
{dx - 0.5, dy - 0.5, 0, 1 - 0.5/dx, 0.5 / dy, lt_ury_ep, lt_urx_ep},
{dx, dy - 0.5, 0, 1, 0.5 / dy, lt_ury_ep, lt_urx_ep},
{dx, 0.5, 0, 1, 1 - 0.5/dy, lt_lly_ep, lt_urx_ep},
{0.5, dy - 0.5, 0, 0.5 / dx, 0.5 / dy, lt_ury_ep, lt_llx_ep},
{0.5, dy, 0, 0.5 / dx, 0, lt_ury_ep, lt_llx_ep},
{dx - 0.5, dy, 0, 1 - 0.5/dx, 0, lt_ury_ep, lt_urx_ep},
{dx - 0.5, dy - 0.5, 0, 1 - 0.5/dx, 0.5 / dy, lt_ury_ep, lt_urx_ep},
{0, 0, 0, 0, 1, lt_lly_ep, lt_llx_ep},
{0, 0.5, 0, 0, 1 - 0.5/dy, lt_lly_ep, lt_llx_ep},
{0.5, 0.5, 0, 0.5 / dx, 1 - 0.5/dy, lt_lly_ep, lt_llx_ep},
{0.5, 0, 0, 0.5 / dx, 1, lt_lly_ep, lt_llx_ep},
{0, dy - 0.5, 0, 0, 0.5 / dy, lt_ury_ep, lt_llx_ep},
{0, dy, 0, 0, 0, lt_ury_ep, lt_llx_ep},
{0.5, dy, 0, 0.5 / dx, 0, lt_ury_ep, lt_llx_ep},
{0.5, dy - 0.5, 0, 0.5 / dx, 0.5 / dy, lt_ury_ep, lt_llx_ep},
{dx - 0.5, dy - 0.5, 0, 1 - 0.5/dx, 0.5 / dy, lt_ury_ep, lt_urx_ep},
{dx - 0.5, dy, 0, 1 - 0.5/dx, 0, lt_ury_ep, lt_urx_ep},
{dx, dy, 0, 1, 0, lt_ury_ep, lt_urx_ep},
{dx, dy - 0.5, 0, 1, 0.5 / dy, lt_ury_ep, lt_urx_ep},
{dx - 0.5, 0, 0, 1 - 0.5/dx, 1, lt_lly_ep, lt_urx_ep},
{dx - 0.5, 0.5, 0, 1 - 0.5/dx, 1 - 0.5/dy, lt_lly_ep, lt_urx_ep},
{dx, 0.5, 0, 1, 1 - 0.5/dy, lt_lly_ep, lt_urx_ep},
{dx, 0, 0, 1, 1, lt_lly_ep, lt_urx_ep},
}
gl.GenBuffers(1, (*gl.Uint)(&room.vbuffer))
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(room.vbuffer))
size := int(unsafe.Sizeof(roomVertex{}))
gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(size*len(vs)), gl.Pointer(&vs[0].x), gl.STATIC_DRAW)
// left wall indices
is := []uint16{0, 3, 4, 0, 4, 1}
gl.GenBuffers(1, (*gl.Uint)(&room.left_buffer))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(room.left_buffer))
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, gl.Sizeiptr(int(unsafe.Sizeof(is[0]))*len(is)), gl.Pointer(&is[0]), gl.STATIC_DRAW)
// right wall indices
is = []uint16{1, 4, 5, 1, 5, 2}
gl.GenBuffers(1, (*gl.Uint)(&room.right_buffer))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(room.right_buffer))
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, gl.Sizeiptr(int(unsafe.Sizeof(is[0]))*len(is)), gl.Pointer(&is[0]), gl.STATIC_DRAW)
// floor indices
is = []uint16{
6, 7, 8, 6, 8, 9, // middle
10, 11, 12, 10, 12, 13, // left side
14, 15, 16, 14, 16, 17, // bottom side
18, 19, 20, 18, 20, 21, // right side
22, 23, 24, 22, 24, 25, // top side
26, 27, 28, 26, 28, 29, // bottom left corner
30, 31, 32, 30, 32, 33, // upper left corner
34, 35, 36, 34, 36, 37, // upper right corner
38, 39, 40, 38, 40, 41, // lower right corner
}
gl.GenBuffers(1, (*gl.Uint)(&room.floor_buffer))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(room.floor_buffer))
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, gl.Sizeiptr(int(unsafe.Sizeof(is[0]))*len(is)), gl.Pointer(&is[0]), gl.STATIC_DRAW)
room.floor_count = len(is)
}
// Need floor, right wall, and left wall matrices to draw the details
func (room *Room) render(floor, left, right mathgl.Mat4, zoom float32, base_alpha byte, drawables []Drawable, los_tex *LosTexture, floor_drawers []FloorDrawer) {
do_color := func(r, g, b, a byte) {
R, G, B, A := room.Color()
A = alphaMult(A, base_alpha)
gl.Color4ub(gl.Ubyte(alphaMult(R, r)), gl.Ubyte(alphaMult(G, g)), gl.Ubyte(alphaMult(B, b)), gl.Ubyte(alphaMult(A, a)))
}
gl.Enable(gl.TEXTURE_2D)
gl.Enable(gl.BLEND)
gl.BlendFunc(gl.SRC_ALPHA, gl.ONE_MINUS_SRC_ALPHA)
gl.Enable(gl.STENCIL_TEST)
gl.ClearStencil(0)
gl.Clear(gl.STENCIL_BUFFER_BIT)
gl.EnableClientState(gl.VERTEX_ARRAY)
gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
defer gl.DisableClientState(gl.VERTEX_ARRAY)
defer gl.DisableClientState(gl.TEXTURE_COORD_ARRAY)
var vert roomVertex
planes := []plane{
{room.left_buffer, room.Wall, &left},
{room.right_buffer, room.Wall, &right},
{room.floor_buffer, room.Floor, &floor},
}
gl.PushMatrix()
defer gl.PopMatrix()
if los_tex != nil {
gl.LoadMatrixf((*gl.Float)(&floor[0]))
gl.ClientActiveTexture(gl.TEXTURE1)
gl.ActiveTexture(gl.TEXTURE1)
gl.Enable(gl.TEXTURE_2D)
gl.EnableClientState(gl.TEXTURE_COORD_ARRAY)
los_tex.Bind()
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(room.vbuffer))
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
gl.ClientActiveTexture(gl.TEXTURE0)
gl.ActiveTexture(gl.TEXTURE0)
base.EnableShader("los")
base.SetUniformI("los", "tex2", 1)
}
var mul, run mathgl.Mat4
for _, plane := range planes {
gl.LoadMatrixf((*gl.Float)(&floor[0]))
run.Assign(&floor)
// Render the doors and cut out the stencil buffer so we leave them empty
// if they're open
switch plane.mat {
case &left:
gl.StencilFunc(gl.ALWAYS, 1, 1)
gl.StencilOp(gl.REPLACE, gl.REPLACE, gl.REPLACE)
for _, door := range room.Doors {
if door.Facing != FarLeft {
continue
}
door.TextureData().Bind()
R, G, B, A := door.Color()
do_color(R, G, B, alphaMult(A, room.far_left.wall_alpha))
gl.ClientActiveTexture(gl.TEXTURE0)
door.TextureData().Bind()
if door.door_glids.floor_buffer != 0 {
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(door.threshold_glids.vbuffer))
gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(door.door_glids.floor_buffer))
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
gl.ClientActiveTexture(gl.TEXTURE1)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
gl.DrawElements(gl.TRIANGLES, door.door_glids.floor_count, gl.UNSIGNED_SHORT, nil)
}
}
gl.StencilFunc(gl.NOTEQUAL, 1, 1)
gl.StencilOp(gl.KEEP, gl.KEEP, gl.KEEP)
do_color(255, 255, 255, room.far_left.wall_alpha)
case &right:
gl.StencilFunc(gl.ALWAYS, 1, 1)
gl.StencilOp(gl.REPLACE, gl.REPLACE, gl.REPLACE)
for _, door := range room.Doors {
if door.Facing != FarRight {
continue
}
door.TextureData().Bind()
R, G, B, A := door.Color()
do_color(R, G, B, alphaMult(A, room.far_right.wall_alpha))
gl.ClientActiveTexture(gl.TEXTURE0)
door.TextureData().Bind()
if door.door_glids.floor_buffer != 0 {
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(door.threshold_glids.vbuffer))
gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(door.door_glids.floor_buffer))
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
gl.ClientActiveTexture(gl.TEXTURE1)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
gl.DrawElements(gl.TRIANGLES, door.door_glids.floor_count, gl.UNSIGNED_SHORT, nil)
}
}
gl.StencilFunc(gl.NOTEQUAL, 1, 1)
gl.StencilOp(gl.KEEP, gl.KEEP, gl.KEEP)
do_color(255, 255, 255, room.far_right.wall_alpha)
case &floor:
gl.StencilFunc(gl.ALWAYS, 2, 2)
gl.StencilOp(gl.REPLACE, gl.REPLACE, gl.REPLACE)
do_color(255, 255, 255, 255)
}
gl.ClientActiveTexture(gl.TEXTURE0)
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(room.vbuffer))
gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
gl.ClientActiveTexture(gl.TEXTURE1)
if los_tex != nil {
los_tex.Bind()
}
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(room.vbuffer))
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
// Now draw the walls
gl.LoadMatrixf((*gl.Float)(&floor[0]))
plane.texture.Data().Bind()
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(plane.index_buffer))
if (plane.mat == &left || plane.mat == &right) && strings.Contains(string(room.Wall.Path), "gradient.png") {
base.EnableShader("gorey")
base.SetUniformI("gorey", "tex", 0)
base.SetUniformI("gorey", "foo", Foo)
base.SetUniformF("gorey", "num_rows", Num_rows)
base.SetUniformF("gorey", "noise_rate", Noise_rate)
base.SetUniformF("gorey", "num_steps", Num_steps)
}
if plane.mat == &floor && strings.Contains(string(room.Floor.Path), "gradient.png") {
base.EnableShader("gorey")
base.SetUniformI("gorey", "tex", 0)
base.SetUniformI("gorey", "foo", Foo)
base.SetUniformF("gorey", "num_rows", Num_rows)
base.SetUniformF("gorey", "noise_rate", Noise_rate)
base.SetUniformF("gorey", "num_steps", Num_steps)
zexp := math.Log(float64(zoom))
frac := 1 - 1/zexp
frac = (frac - 0.6) * 5.0
switch {
case frac > 0.7:
base.SetUniformI("gorey", "range", 1)
case frac > 0.3:
base.SetUniformI("gorey", "range", 2)
default:
base.SetUniformI("gorey", "range", 3)
}
}
if plane.mat == &floor {
R, G, B, _ := room.Color()
gl.Color4ub(gl.Ubyte(R), gl.Ubyte(G), gl.Ubyte(B), 255)
}
gl.DrawElements(gl.TRIANGLES, gl.Sizei(room.floor_count), gl.UNSIGNED_SHORT, nil)
if los_tex != nil {
base.EnableShader("los")
} else {
base.EnableShader("")
}
}
for _, wt := range room.WallTextures {
if room.wall_texture_gl_map == nil {
room.wall_texture_gl_map = make(map[*WallTexture]wallTextureGlIds)
room.wall_texture_state_map = make(map[*WallTexture]wallTextureState)
}
ids := room.wall_texture_gl_map[wt]
state := room.wall_texture_state_map[wt]
var new_state wallTextureState
new_state.flip = wt.Flip
new_state.rot = wt.Rot
new_state.x = wt.X
new_state.y = wt.Y
new_state.room.x = room.X
new_state.room.y = room.Y
new_state.room.dx = room.Size.Dx
new_state.room.dy = room.Size.Dy
if new_state != state {
wt.setupGlStuff(room.X, room.Y, room.Size.Dx, room.Size.Dy, &ids)
room.wall_texture_gl_map[wt] = ids
room.wall_texture_state_map[wt] = new_state
}
gl.LoadMatrixf((*gl.Float)(&floor[0]))
if ids.vbuffer != 0 {
wt.Texture.Data().Bind()
R, G, B, A := wt.Color()
gl.ClientActiveTexture(gl.TEXTURE0)
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(ids.vbuffer))
gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
gl.ClientActiveTexture(gl.TEXTURE1)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
gl.ClientActiveTexture(gl.TEXTURE0)
if ids.floor_buffer != 0 {
gl.StencilFunc(gl.ALWAYS, 2, 2)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(ids.floor_buffer))
gl.Color4ub(gl.Ubyte(R), gl.Ubyte(G), gl.Ubyte(B), gl.Ubyte(A))
gl.DrawElements(gl.TRIANGLES, ids.floor_count, gl.UNSIGNED_SHORT, nil)
}
if ids.left_buffer != 0 {
gl.StencilFunc(gl.ALWAYS, 1, 1)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(ids.left_buffer))
do_color(R, G, B, alphaMult(A, room.far_left.wall_alpha))
gl.DrawElements(gl.TRIANGLES, ids.left_count, gl.UNSIGNED_SHORT, nil)
}
if ids.right_buffer != 0 {
gl.StencilFunc(gl.ALWAYS, 1, 1)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(ids.right_buffer))
do_color(R, G, B, alphaMult(A, room.far_right.wall_alpha))
gl.DrawElements(gl.TRIANGLES, ids.right_count, gl.UNSIGNED_SHORT, nil)
}
}
}
base.EnableShader("marble")
base.SetUniformI("marble", "tex2", 1)
base.SetUniformF("marble", "room_x", float32(room.X))
base.SetUniformF("marble", "room_y", float32(room.Y))
for _, door := range room.Doors {
door.setupGlStuff(room)
if door.threshold_glids.vbuffer == 0 {
continue
}
if door.AlwaysOpen() {
continue
}
if door.highlight_threshold {
gl.Color4ub(255, 255, 255, 255)
} else {
gl.Color4ub(128, 128, 128, 255)
}
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(door.threshold_glids.vbuffer))
gl.VertexPointer(3, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.x)))
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.u)))
gl.ClientActiveTexture(gl.TEXTURE1)
gl.TexCoordPointer(2, gl.FLOAT, gl.Sizei(unsafe.Sizeof(vert)), gl.Pointer(unsafe.Offsetof(vert.los_u)))
gl.ClientActiveTexture(gl.TEXTURE0)
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(door.threshold_glids.floor_buffer))
gl.DrawElements(gl.TRIANGLES, door.threshold_glids.floor_count, gl.UNSIGNED_SHORT, nil)
}
base.EnableShader("")
if los_tex != nil {
base.EnableShader("")
gl.ActiveTexture(gl.TEXTURE1)
gl.Disable(gl.TEXTURE_2D)
gl.ActiveTexture(gl.TEXTURE0)
gl.ClientActiveTexture(gl.TEXTURE1)
gl.DisableClientState(gl.TEXTURE_COORD_ARRAY)
gl.ClientActiveTexture(gl.TEXTURE0)
}
run.Assign(&floor)
mul.Translation(float32(-room.X), float32(-room.Y), 0)
run.Multiply(&mul)
gl.LoadMatrixf((*gl.Float)(&run[0]))
gl.StencilFunc(gl.EQUAL, 2, 3)
gl.StencilOp(gl.KEEP, gl.KEEP, gl.KEEP)
room_rect := image.Rect(room.X, room.Y, room.X+room.Size.Dx, room.Y+room.Size.Dy)
for _, fd := range floor_drawers {
x, y := fd.Pos()
dx, dy := fd.Dims()
if room_rect.Overlaps(image.Rect(x, y, x+dx, y+dy)) {
fd.RenderOnFloor()
}
}
do_color(255, 255, 255, 255)
gl.LoadIdentity()
gl.Disable(gl.STENCIL_TEST)
room.renderFurniture(floor, 255, drawables, los_tex)
gl.ClientActiveTexture(gl.TEXTURE1)
gl.Disable(gl.TEXTURE_2D)
gl.ClientActiveTexture(gl.TEXTURE0)
base.EnableShader("")
}
func (d *Door) setupGlStuff(room *Room) {
var state doorState
state.facing = d.Facing
state.pos = d.Pos
state.room.x = room.X
state.room.y = room.Y
state.room.dx = room.roomDef.Size.Dx
state.room.dy = room.roomDef.Size.Dy
if state == d.state {
return
}
if d.TextureData().Dy() == 0 {
// Can't build this data until the texture is loaded, so we'll have to try
// again later.
return
}
d.state = state
if d.threshold_glids.vbuffer != 0 {
gl.DeleteBuffers(1, (*gl.Uint)(&d.threshold_glids.vbuffer))
gl.DeleteBuffers(1, (*gl.Uint)(&d.threshold_glids.floor_buffer))
d.threshold_glids.vbuffer = 0
d.threshold_glids.floor_buffer = 0
}
if d.door_glids.vbuffer != 0 {
gl.DeleteBuffers(1, (*gl.Uint)(&d.door_glids.vbuffer))
gl.DeleteBuffers(1, (*gl.Uint)(&d.door_glids.floor_buffer))
d.door_glids.vbuffer = 0
d.door_glids.floor_buffer = 0
}
// far left, near right, do threshold
// near left, far right, do threshold
// far left, far right, do door
var vs []roomVertex
if d.Facing == FarLeft || d.Facing == NearRight {
x1 := float32(d.Pos)
x2 := float32(d.Pos + d.Width)
var y1 float32 = -0.25
var y2 float32 = 0.25
if d.Facing == FarLeft {
y1 = float32(room.roomDef.Size.Dy)
y2 = float32(room.roomDef.Size.Dy) - 0.25
}
// los_x1 := (x1 + float32(room.X)) / LosTextureSize
vs = append(vs, roomVertex{x: x1, y: y1})
vs = append(vs, roomVertex{x: x1, y: y2})
vs = append(vs, roomVertex{x: x2, y: y2})
vs = append(vs, roomVertex{x: x2, y: y1})
for i := 0; i < 4; i++ {
vs[i].los_u = (y2 + float32(room.Y)) / LosTextureSize
vs[i].los_v = (vs[i].x + float32(room.X)) / LosTextureSize
}
}
if d.Facing == FarRight || d.Facing == NearLeft {
y1 := float32(d.Pos)
y2 := float32(d.Pos + d.Width)
var x1 float32 = -0.25
var x2 float32 = 0.25
if d.Facing == FarRight {
x1 = float32(room.roomDef.Size.Dx)
x2 = float32(room.roomDef.Size.Dx) - 0.25
}
// los_y1 := (y1 + float32(room.Y)) / LosTextureSize
vs = append(vs, roomVertex{x: x1, y: y1})
vs = append(vs, roomVertex{x: x1, y: y2})
vs = append(vs, roomVertex{x: x2, y: y2})
vs = append(vs, roomVertex{x: x2, y: y1})
for i := 0; i < 4; i++ {
vs[i].los_u = (vs[i].y + float32(room.Y)) / LosTextureSize
vs[i].los_v = (x2 + float32(room.X)) / LosTextureSize
}
}
dz := -float32(d.Width*d.TextureData().Dy()) / float32(d.TextureData().Dx())
if d.Facing == FarRight {
x := float32(room.roomDef.Size.Dx)
y1 := float32(d.Pos + d.Width)
y2 := float32(d.Pos)
los_v := (float32(room.X) + x - 0.5) / LosTextureSize
los_u1 := (float32(room.Y) + y1) / LosTextureSize
los_u2 := (float32(room.Y) + y2) / LosTextureSize
vs = append(vs, roomVertex{
x: x, y: y1, z: 0,
u: 0, v: 1,
los_u: los_u1,
los_v: los_v,
})
vs = append(vs, roomVertex{
x: x, y: y1, z: dz,
u: 0, v: 0,
los_u: los_u1,
los_v: los_v,
})
vs = append(vs, roomVertex{
x: x, y: y2, z: dz,
u: 1, v: 0,
los_u: los_u2,
los_v: los_v,
})
vs = append(vs, roomVertex{
x: x, y: y2, z: 0,
u: 1, v: 1,
los_u: los_u2,
los_v: los_v,
})
}
if d.Facing == FarLeft {
x1 := float32(d.Pos)
x2 := float32(d.Pos + d.Width)
y := float32(room.roomDef.Size.Dy)
los_v1 := (float32(room.X) + x1) / LosTextureSize
los_v2 := (float32(room.X) + x2) / LosTextureSize
los_u := (float32(room.Y) + y - 0.5) / LosTextureSize
vs = append(vs, roomVertex{
x: x1, y: y, z: 0,
u: 0, v: 1,
los_u: los_u,
los_v: los_v1,
})
vs = append(vs, roomVertex{
x: x1, y: y, z: dz,
u: 0, v: 0,
los_u: los_u,
los_v: los_v1,
})
vs = append(vs, roomVertex{
x: x2, y: y, z: dz,
u: 1, v: 0,
los_u: los_u,
los_v: los_v2,
})
vs = append(vs, roomVertex{
x: x2, y: y, z: 0,
u: 1, v: 1,
los_u: los_u,
los_v: los_v2,
})
}
gl.GenBuffers(1, (*gl.Uint)(&d.threshold_glids.vbuffer))
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(d.threshold_glids.vbuffer))
size := int(unsafe.Sizeof(roomVertex{}))
gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(size*len(vs)), gl.Pointer(&vs[0].x), gl.STATIC_DRAW)
is := []uint16{0, 1, 2, 0, 2, 3}
gl.GenBuffers(1, (*gl.Uint)(&d.threshold_glids.floor_buffer))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(d.threshold_glids.floor_buffer))
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, gl.Sizeiptr(int(unsafe.Sizeof(is[0]))*len(is)), gl.Pointer(&is[0]), gl.STATIC_DRAW)
d.threshold_glids.floor_count = 6
if d.Facing == FarLeft || d.Facing == FarRight {
is2 := []uint16{4, 5, 6, 4, 6, 7}
gl.GenBuffers(1, (*gl.Uint)(&d.door_glids.floor_buffer))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(d.door_glids.floor_buffer))
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, gl.Sizeiptr(int(unsafe.Sizeof(is[0]))*len(is2)), gl.Pointer(&is2[0]), gl.STATIC_DRAW)
d.door_glids.floor_count = 6
}
}
func (wt *WallTexture) setupGlStuff(x, y, dx, dy int, gl_ids *wallTextureGlIds) {
if gl_ids.vbuffer != 0 {
gl.DeleteBuffers(1, (*gl.Uint)(&gl_ids.vbuffer))
gl.DeleteBuffers(1, (*gl.Uint)(&gl_ids.left_buffer))
gl.DeleteBuffers(1, (*gl.Uint)(&gl_ids.right_buffer))
gl.DeleteBuffers(1, (*gl.Uint)(&gl_ids.floor_buffer))
gl_ids.vbuffer = 0
gl_ids.left_buffer = 0
gl_ids.right_buffer = 0
gl_ids.floor_buffer = 0
}
// All vertices for both walls and the floor will go here and get sent to
// opengl all at once
var vs []roomVertex
// Conveniently casted values
frx := float32(x)
fry := float32(y)
frdx := float32(dx)
frdy := float32(dy)
tdx := float32(wt.Texture.Data().Dx()) / 100
tdy := float32(wt.Texture.Data().Dy()) / 100
wtx := wt.X
wty := wt.Y
wtr := wt.Rot
if wtx > frdx {
wtr -= 3.1415926535 / 2
}
// Floor
verts := []mathgl.Vec2{
{-tdx / 2, -tdy / 2},
{-tdx / 2, tdy / 2},
{tdx / 2, tdy / 2},
{tdx / 2, -tdy / 2},
}
var m, run mathgl.Mat3
run.Identity()
m.Translation(wtx, wty)
run.Multiply(&m)
m.RotationZ(wtr)
run.Multiply(&m)
if wt.Flip {
m.Scaling(-1, 1)
run.Multiply(&m)
}
for i := range verts {
verts[i].Transform(&run)
}
p := mathgl.Poly(verts)
p.Clip(&mathgl.Seg2{A: mathgl.Vec2{0, 0}, B: mathgl.Vec2{0, frdy}})
p.Clip(&mathgl.Seg2{A: mathgl.Vec2{0, frdy}, B: mathgl.Vec2{frdx, frdy}})
p.Clip(&mathgl.Seg2{A: mathgl.Vec2{frdx, frdy}, B: mathgl.Vec2{frdx, 0}})
p.Clip(&mathgl.Seg2{A: mathgl.Vec2{frdx, 0}, B: mathgl.Vec2{0, 0}})
if len(p) >= 3 {
// floor indices
var is []uint16
for i := 1; i < len(p)-1; i++ {
is = append(is, uint16(len(vs)+0))
is = append(is, uint16(len(vs)+i))
is = append(is, uint16(len(vs)+i+1))
}
gl.GenBuffers(1, (*gl.Uint)(&gl_ids.floor_buffer))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(gl_ids.floor_buffer))
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, gl.Sizeiptr(int(unsafe.Sizeof(is[0]))*len(is)), gl.Pointer(&is[0]), gl.STATIC_DRAW)
gl_ids.floor_count = gl.Sizei(len(is))
run.Inverse()
for i := range p {
v := mathgl.Vec2{p[i].X, p[i].Y}
v.Transform(&run)
vs = append(vs, roomVertex{
x: p[i].X,
y: p[i].Y,
u: v.X/tdx + 0.5,
v: -(v.Y/tdy + 0.5),
los_u: (fry + p[i].Y) / LosTextureSize,
los_v: (frx + p[i].X) / LosTextureSize,
})
}
}
// Left Wall
verts = []mathgl.Vec2{
{-tdx / 2, -tdy / 2},
{-tdx / 2, tdy / 2},
{tdx / 2, tdy / 2},
{tdx / 2, -tdy / 2},
}
run.Identity()
m.Translation(wtx, wty)
run.Multiply(&m)
m.RotationZ(wtr)
run.Multiply(&m)
if wt.Flip {
m.Scaling(-1, 1)
run.Multiply(&m)
}
for i := range verts {
verts[i].Transform(&run)
}
p = mathgl.Poly(verts)
p.Clip(&mathgl.Seg2{A: mathgl.Vec2{0, 0}, B: mathgl.Vec2{0, frdy}})
p.Clip(&mathgl.Seg2{B: mathgl.Vec2{0, frdy}, A: mathgl.Vec2{frdx, frdy}})
p.Clip(&mathgl.Seg2{A: mathgl.Vec2{frdx, frdy}, B: mathgl.Vec2{frdx, 0}})
if len(p) >= 3 {
// floor indices
var is []uint16
for i := 1; i < len(p)-1; i++ {
is = append(is, uint16(len(vs)+0))
is = append(is, uint16(len(vs)+i))
is = append(is, uint16(len(vs)+i+1))
}
gl.GenBuffers(1, (*gl.Uint)(&gl_ids.left_buffer))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(gl_ids.left_buffer))
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, gl.Sizeiptr(int(unsafe.Sizeof(is[0]))*len(is)), gl.Pointer(&is[0]), gl.STATIC_DRAW)
gl_ids.left_count = gl.Sizei(len(is))
run.Inverse()
for i := range p {
v := mathgl.Vec2{p[i].X, p[i].Y}
v.Transform(&run)
vs = append(vs, roomVertex{
x: p[i].X,
y: frdy,
z: frdy - p[i].Y,
u: v.X/tdx + 0.5,
v: -(v.Y/tdy + 0.5),
los_u: (fry + frdy - 0.5) / LosTextureSize,
los_v: (frx + p[i].X) / LosTextureSize,
})
}
}
// Right Wall
verts = []mathgl.Vec2{
{-tdx / 2, -tdy / 2},
{-tdx / 2, tdy / 2},
{tdx / 2, tdy / 2},
{tdx / 2, -tdy / 2},
}
run.Identity()
m.Translation(wtx, wty)
run.Multiply(&m)
m.RotationZ(wtr)
run.Multiply(&m)
if wt.Flip {
m.Scaling(-1, 1)
run.Multiply(&m)
}
for i := range verts {
verts[i].Transform(&run)
}
p = mathgl.Poly(verts)
p.Clip(&mathgl.Seg2{A: mathgl.Vec2{0, frdy}, B: mathgl.Vec2{frdx, frdy}})
p.Clip(&mathgl.Seg2{B: mathgl.Vec2{frdx, frdy}, A: mathgl.Vec2{frdx, 0}})
p.Clip(&mathgl.Seg2{A: mathgl.Vec2{frdx, 0}, B: mathgl.Vec2{0, 0}})
if len(p) >= 3 {
// floor indices
var is []uint16
for i := 1; i < len(p)-1; i++ {
is = append(is, uint16(len(vs)+0))
is = append(is, uint16(len(vs)+i))
is = append(is, uint16(len(vs)+i+1))
}
gl.GenBuffers(1, (*gl.Uint)(&gl_ids.right_buffer))
gl.BindBuffer(gl.ELEMENT_ARRAY_BUFFER, gl.Uint(gl_ids.right_buffer))
gl.BufferData(gl.ELEMENT_ARRAY_BUFFER, gl.Sizeiptr(int(unsafe.Sizeof(is[0]))*len(is)), gl.Pointer(&is[0]), gl.STATIC_DRAW)
gl_ids.right_count = gl.Sizei(len(is))
run.Inverse()
for i := range p {
v := mathgl.Vec2{p[i].X, p[i].Y}
v.Transform(&run)
vs = append(vs, roomVertex{
x: frdx,
y: p[i].Y,
z: frdx - p[i].X,
u: v.X/tdx + 0.5,
v: -(v.Y/tdy + 0.5),
los_u: (fry + p[i].Y) / LosTextureSize,
los_v: (frx + frdx - 0.5) / LosTextureSize,
})
}
}
if len(vs) > 0 {
gl.GenBuffers(1, (*gl.Uint)(&gl_ids.vbuffer))
gl.BindBuffer(gl.ARRAY_BUFFER, gl.Uint(gl_ids.vbuffer))
size := int(unsafe.Sizeof(roomVertex{}))
gl.BufferData(gl.ARRAY_BUFFER, gl.Sizeiptr(size*len(vs)), gl.Pointer(&vs[0].x), gl.STATIC_DRAW)
}
}
func InitShaders() {
render.Queue(func() {
vertex_shaders = make(map[string]uint32)
fragment_shaders = make(map[string]uint32)
shader_progs = make(map[string]uint32)
warned_names = make(map[string]bool)
RemoveRegistry("shaders")
RegisterRegistry("shaders", make(map[string]*shaderDef))
RegisterAllObjectsInDir("shaders", filepath.Join(GetDataDir(), "shaders"), ".json", "json")
names := GetAllNamesInRegistry("shaders")
for _, name := range names {
// Load the shader files
shader := Shader{Defname: name}
GetObject("shaders", &shader)
vdata, err := ioutil.ReadFile(filepath.Join(GetDataDir(), shader.Vertex_path))
if err != nil {
Error().Printf("Unable to load vertex shader '%s': %v", shader.Vertex_path, err)
continue
}
fdata, err := ioutil.ReadFile(filepath.Join(GetDataDir(), shader.Fragment_path))
if err != nil {
Error().Printf("Unable to load fragment shader '%s': %v", shader.Fragment_path, err)
continue
}
// Create the vertex shader
vertex_id, ok := vertex_shaders[shader.Vertex_path]
if !ok {
vertex_id = uint32(gl.CreateShader(gl.VERTEX_SHADER))
pointer := &vdata[0]
length := int32(len(vdata))
gl.ShaderSource(gl.Uint(vertex_id), 1, (**gl.Char)(unsafe.Pointer(&pointer)), (*gl.Int)(&length))
gl.CompileShader(gl.Uint(vertex_id))
var param int32
gl.GetShaderiv(gl.Uint(vertex_id), gl.COMPILE_STATUS, (*gl.Int)(¶m))
if param == 0 {
Error().Printf("Failed to compile vertex shader '%s': %v", shader.Vertex_path, param)
continue
}
}
// Create the fragment shader
fragment_id, ok := fragment_shaders[shader.Fragment_path]
if !ok {
fragment_id = uint32(gl.CreateShader(gl.FRAGMENT_SHADER))
pointer := &fdata[0]
length := int32(len(fdata))
gl.ShaderSource(gl.Uint(fragment_id), 1, (**gl.Char)(unsafe.Pointer(&pointer)), (*gl.Int)(&length))
gl.CompileShader(gl.Uint(fragment_id))
var param int32
gl.GetShaderiv(gl.Uint(fragment_id), gl.COMPILE_STATUS, (*gl.Int)(¶m))
if param == 0 {
Error().Printf("Failed to compile fragment shader '%s': %v", shader.Fragment_path, param)
continue
}
}
// shader successfully compiled - now link
program_id := gl.CreateProgram()
gl.AttachShader(program_id, gl.Uint(vertex_id))
gl.AttachShader(program_id, gl.Uint(fragment_id))
gl.LinkProgram(program_id)
var param int32
gl.GetProgramiv(program_id, gl.LINK_STATUS, (*gl.Int)(¶m))
if param == 0 {
Error().Printf("Failed to link shader '%s': %v", shader.Name, param)
continue
}
vertex_shaders[shader.Vertex_path] = vertex_id
fragment_shaders[shader.Fragment_path] = fragment_id
shader_progs[shader.Name] = uint32(program_id)
}
})
}