thegates/app/scripts/sandbox/render_result.gd
2024-12-07 13:49:51 +04:00

84 lines
2.8 KiB
GDScript

extends TextureRect
class_name RenderResult
@export var gate_events: GateEvents
@export var command_events: CommandEvents
@export var ui_events: UiEvents
@onready var width: int = int(size.x * DisplayServer.screen_get_scale())
@onready var height: int = int(size.y * DisplayServer.screen_get_scale())
var ext_texure: ExternalTexture
var texture_rid: RID
func _ready() -> void:
gate_events.gate_entered.connect(create_external_texture)
command_events.send_filehandle.connect(send_filehandle)
command_events.ext_texture_format.connect(set_texture_format)
gate_events.first_frame.connect(show_render)
# Create empty texture with window size
var image = Image.create(width, height, false, Image.FORMAT_RGBA8)
self.texture = ImageTexture.create_from_image(image)
texture_rid = RenderingServer.texture_get_rd_texture(self.texture.get_rid())
if not texture_rid.is_valid(): Debug.logerr("Cannot create ImageTexture")
func create_external_texture() -> void:
var t_format: RDTextureFormat = RDTextureFormat.new()
t_format.format = RenderingDevice.DATA_FORMAT_R8G8B8A8_UNORM
t_format.usage_bits = RenderingDevice.TEXTURE_USAGE_CAN_COPY_FROM_BIT | \
RenderingDevice.TEXTURE_USAGE_CAN_UPDATE_BIT
t_format.width = width
t_format.height = height
t_format.depth = 1
var t_view: RDTextureView = RDTextureView.new()
# For some reason when switching scene something is not freed
# So need to wait to free that up
await get_tree().process_frame
await get_tree().process_frame
await get_tree().process_frame
ext_texure = ExternalTexture.new()
var err = ext_texure.create(t_format, t_view)
if err: Debug.logerr("Cannot create external texture")
else: Debug.logclr("External texture created", Color.DIM_GRAY)
func send_filehandle(filehandle_path: String) -> void:
Debug.logclr("Sending filehandle...", Color.DIM_GRAY)
var sent = false
while not sent:
sent = ext_texure.send_filehandle(filehandle_path)
await get_tree().process_frame
Debug.logclr("filehandle was sent", Color.DIM_GRAY)
func set_texture_format(format: RenderingDevice.DataFormat) -> void:
match format:
RenderingDevice.DATA_FORMAT_R8G8B8A8_UNORM:
set_param(&"ext_texture_is_bgra", false)
Debug.logclr("External texture format is set to RGBA8", Color.DIM_GRAY)
RenderingDevice.DATA_FORMAT_B8G8R8A8_UNORM:
set_param(&"ext_texture_is_bgra", true)
Debug.logclr("External texture format is set to BGRA8", Color.DIM_GRAY)
_:
Debug.logerr("Texture format %d is not supported" % [format])
func show_render() -> void:
set_param(&"show_render", true)
func set_param(param: StringName, value: Variant) -> void:
(material as ShaderMaterial).set_shader_parameter(param, value)
func _process(_delta: float) -> void:
if ext_texure == null or not ext_texure.get_rid().is_valid(): return
if not texture_rid.is_valid(): return
ext_texure.copy_to(texture_rid)