func MakeTextures(num gl.Sizei, glPtr []gl.Uint, dimensions uint8, texFormat gl.Enum, width, height, depth gl.Sizei) {
var is3d, is2d = (dimensions == 3), (dimensions == 2)
var texTarget gl.Enum = gltypes.Ife(is3d, gl.TEXTURE_3D, gltypes.Ife(is2d, gl.TEXTURE_2D, gl.TEXTURE_1D))
gl.GenTextures(num, &glPtr[0])
PanicIfErrors("MakeTextures.GenTextures(num=%v)", num)
if width == 0 {
panic("MakeTextures() needs at least width")
}
if height == 0 {
height = width
}
if depth == 0 {
depth = height
}
for i := 0; i < len(glPtr); i++ {
gl.BindTexture(texTarget, glPtr[i])
gl.TexParameteri(texTarget, gl.TEXTURE_MAG_FILTER, TexFilter)
gl.TexParameteri(texTarget, gl.TEXTURE_MIN_FILTER, TexFilter)
gl.TexParameteri(texTarget, gl.TEXTURE_WRAP_R, TexWrap)
gl.TexParameteri(texTarget, gl.TEXTURE_WRAP_S, TexWrap)
gl.TexParameteri(texTarget, gl.TEXTURE_WRAP_T, TexWrap)
if is3d {
gl.TexStorage3D(texTarget, 1, texFormat, width, height, depth)
} else if is2d {
gl.TexStorage2D(texTarget, 1, texFormat, width, height)
} else {
gl.TexStorage1D(texTarget, 1, texFormat, width)
}
gl.BindTexture(texTarget, 0)
PanicIfErrors("MakeTextures.Loop(i=%v dim=%v w=%v h=%v d=%v)", i, dimensions, width, height, depth)
}
}
func MakeTextureForTarget(glPtr *gl.Uint, dimensions uint8, width, height, depth gl.Sizei, texTarget gl.Enum, texFormat gl.Enum, panicIfErrors, reuseGlPtr bool) {
var is3d, is2d = (dimensions == 3), (dimensions == 2)
if texTarget == 0 {
texTarget = gltypes.Ife(is3d, gl.TEXTURE_3D, gltypes.Ife(is2d, gl.TEXTURE_2D, gl.TEXTURE_1D))
}
if texFormat == 0 {
texFormat = gl.RGBA8
}
if width == 0 {
panic("MakeTextureForTarget() needs at least width")
}
if height == 0 {
height = width
}
if depth == 0 {
depth = height
}
if (!reuseGlPtr) || (*glPtr == 0) {
gl.GenTextures(1, glPtr)
}
gl.BindTexture(texTarget, *glPtr)
gl.TexParameteri(texTarget, gl.TEXTURE_MAG_FILTER, TexFilter)
gl.TexParameteri(texTarget, gl.TEXTURE_MIN_FILTER, TexFilter)
gl.TexParameteri(texTarget, gl.TEXTURE_WRAP_S, TexWrap)
if is2d || is3d {
gl.TexParameteri(texTarget, gl.TEXTURE_WRAP_T, TexWrap)
}
if is3d {
gl.TexParameteri(texTarget, gl.TEXTURE_WRAP_R, TexWrap)
}
if is3d {
gl.TexStorage3D(texTarget, 1, texFormat, width, height, depth)
} else if is2d {
gl.TexStorage2D(texTarget, 1, texFormat, width, height)
} else {
gl.TexStorage1D(texTarget, 1, texFormat, width)
}
gl.BindTexture(texTarget, 0)
if panicIfErrors {
PanicIfErrors("MakeTextureForTarget(dim=%v w=%v h=%v d=%v)", dimensions, width, height, depth)
}
}