external_texture.cpp

/**************************************************************************/
/*  camera_texture.cpp                                                    */
/**************************************************************************/
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */
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#include "external_texture.h"
#include "servers/rendering/rendering_server_globals.h"
#include "drivers/gles3/storage/texture_storage.h"

void ExternalTexture::_bind_methods() {
	ClassDB::bind_method(D_METHOD("set_size", "size"), &ExternalTexture::set_size);
	ClassDB::bind_method(D_METHOD("get_external_texture_id"), &ExternalTexture::get_external_texture_id);

	ADD_PROPERTY(PropertyInfo(Variant::VECTOR2, "size"), "set_size", "get_size");
}

uint32_t ExternalTexture::get_external_texture_id() {
	return ((GLES3::TextureStorage*) RSG::texture_storage)->texture_get_texid(_texture);
}

void ExternalTexture::set_size(const Size2 &p_size) {
	if (p_size.width > 0 && p_size.height > 0) {
		_size = p_size;
		RenderingServer::get_singleton()->texture_set_size_override(_texture, _size.width, _size.height);
		notify_property_list_changed();
	}
}

Size2 ExternalTexture::get_size() const {
	return _size;
}

int ExternalTexture::get_width() const {
	return _size.width;
}

int ExternalTexture::get_height() const {
	return _size.height;
}

bool ExternalTexture::has_alpha() const {
	return false;
}

RID ExternalTexture::get_rid() const {
	return _texture;
}

Ref<Image> ExternalTexture::get_image() const {
	// not (yet) supported
	return Ref<Image>();
}

ExternalTexture::ExternalTexture() {
	_size = Size2(1.0, 1.0);
	Ref<Image> image = Image::create_empty(_size.width, _size.height, true, Image::FORMAT_RGBA8);
	_texture = RenderingServer::get_singleton()->texture_external_create(image);
	notify_property_list_changed();
}

ExternalTexture::~ExternalTexture() {
	if (_texture.is_valid()) {
		ERR_FAIL_NULL(RenderingServer::get_singleton());
		RenderingServer::get_singleton()->free(_texture);
	}
}