func CreateIndexBuffer(data []uint16) IndexBuffer {
return IndexBuffer{
h: C.bgfx_create_index_buffer(
// to keep things simple for now, we'll just copy
C.bgfx_copy(unsafe.Pointer(&data[0]), C.uint32_t(len(data)*2)),
),
}
}
func CreateShader(data []byte) Shader {
return Shader{
h: C.bgfx_create_shader(
// to keep things simple for now, we'll just copy
C.bgfx_copy(unsafe.Pointer(&data[0]), C.uint32_t(len(data))),
),
}
}
func CreateTexture(data []byte, flags TextureFlags, skip uint8) (Texture, TextureInfo) {
var ti C.bgfx_texture_info_t
h := C.bgfx_create_texture(
C.bgfx_copy(unsafe.Pointer(&data[0]), C.uint32_t(len(data))),
C.uint32_t(flags),
C.uint8_t(skip),
&ti,
)
return Texture{h: h}, newTextureInfo(ti)
}
func CreateVertexBuffer(slice interface{}, decl VertexDecl) VertexBuffer {
val := reflect.ValueOf(slice)
if val.Kind() != reflect.Slice {
panic(errors.New("bgfx: expected slice"))
}
size := uintptr(val.Len()) * val.Type().Elem().Size()
return VertexBuffer{
h: C.bgfx_create_vertex_buffer(
// to keep things simple for now, we'll just copy
C.bgfx_copy(unsafe.Pointer(val.Pointer()), C.uint32_t(size)),
&decl.decl,
),
}
}
func CreateTextureCube(size, numMips int, format TextureFormat, flags TextureFlags, data []byte) Texture {
var mem *C.bgfx_memory_t
if data != nil {
mem = C.bgfx_copy(unsafe.Pointer(&data[0]), C.uint32_t(len(data)))
}
h := C.bgfx_create_texture_cube(
C.uint16_t(size),
C.uint8_t(numMips),
C.bgfx_texture_format_t(format),
C.uint32_t(flags),
mem,
)
return Texture{h: h}
}
func CreateTexture3D(width, height, depth, numMips int, format TextureFormat, flags TextureFlags, data []byte) Texture {
var mem *C.bgfx_memory_t
if data != nil {
mem = C.bgfx_copy(unsafe.Pointer(&data[0]), C.uint32_t(len(data)))
}
h := C.bgfx_create_texture_3d(
C.uint16_t(width),
C.uint16_t(height),
C.uint16_t(depth),
C.uint8_t(numMips),
C.bgfx_texture_format_t(format),
C.uint32_t(flags),
mem,
)
return Texture{h: h}
}
func UpdateTextureCube(t Texture, side, mip, x, y, width, height int, data []byte, pitch int) {
if pitch == 0 {
pitch = 0xffff
}
C.bgfx_update_texture_cube(
t.h,
C.uint8_t(side),
C.uint8_t(mip),
C.uint16_t(x),
C.uint16_t(y),
C.uint16_t(width),
C.uint16_t(height),
// to keep things simple and safe, just copy for now
C.bgfx_copy(
unsafe.Pointer(&data[0]),
C.uint32_t(len(data)),
),
C.uint16_t(pitch),
)
}