godot/modules/gdnative/xr/xr_interface_gdnative.cpp
Rémi Verschelde 0be6d925dc Style: clang-format: Disable KeepEmptyLinesAtTheStartOfBlocks
Which means that reduz' beloved style which we all became used to
will now be changed automatically to remove the first empty line.

This makes us lean closer to 1TBS (the one true brace style) instead
of hybridating it with some Allman-inspired spacing.

There's still the case of braces around single-statement blocks that
needs to be addressed (but clang-format can't help with that, but
clang-tidy may if we agree about it).

Part of #33027.
2020-05-14 16:54:55 +02:00

421 lines
13 KiB
C++

/*************************************************************************/
/* xr_interface_gdnative.cpp */
/*************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/*************************************************************************/
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/*************************************************************************/
#include "xr_interface_gdnative.h"
#include "core/input/input.h"
#include "servers/rendering/rendering_server_globals.h"
#include "servers/xr/xr_positional_tracker.h"
void XRInterfaceGDNative::_bind_methods() {
ADD_PROPERTY_DEFAULT("interface_is_initialized", false);
ADD_PROPERTY_DEFAULT("ar_is_anchor_detection_enabled", false);
}
XRInterfaceGDNative::XRInterfaceGDNative() {
print_verbose("Construct gdnative interface\n");
// we won't have our data pointer until our library gets set
data = nullptr;
interface = nullptr;
}
XRInterfaceGDNative::~XRInterfaceGDNative() {
print_verbose("Destruct gdnative interface\n");
if (interface != nullptr && is_initialized()) {
uninitialize();
};
// cleanup after ourselves
cleanup();
}
void XRInterfaceGDNative::cleanup() {
if (interface != nullptr) {
interface->destructor(data);
data = nullptr;
interface = nullptr;
}
}
void XRInterfaceGDNative::set_interface(const godot_xr_interface_gdnative *p_interface) {
// this should only be called once, just being paranoid..
if (interface) {
cleanup();
}
// bind to our interface
interface = p_interface;
// Now we do our constructing...
data = interface->constructor((godot_object *)this);
}
StringName XRInterfaceGDNative::get_name() const {
ERR_FAIL_COND_V(interface == nullptr, StringName());
godot_string result = interface->get_name(data);
StringName name = *(String *)&result;
godot_string_destroy(&result);
return name;
}
int XRInterfaceGDNative::get_capabilities() const {
int capabilities;
ERR_FAIL_COND_V(interface == nullptr, 0); // 0 = None
capabilities = interface->get_capabilities(data);
return capabilities;
}
bool XRInterfaceGDNative::get_anchor_detection_is_enabled() const {
ERR_FAIL_COND_V(interface == nullptr, false);
return interface->get_anchor_detection_is_enabled(data);
}
void XRInterfaceGDNative::set_anchor_detection_is_enabled(bool p_enable) {
ERR_FAIL_COND(interface == nullptr);
interface->set_anchor_detection_is_enabled(data, p_enable);
}
int XRInterfaceGDNative::get_camera_feed_id() {
ERR_FAIL_COND_V(interface == nullptr, 0);
return (unsigned int)interface->get_camera_feed_id(data);
}
bool XRInterfaceGDNative::is_stereo() {
bool stereo;
ERR_FAIL_COND_V(interface == nullptr, false);
stereo = interface->is_stereo(data);
return stereo;
}
bool XRInterfaceGDNative::is_initialized() const {
ERR_FAIL_COND_V(interface == nullptr, false);
return interface->is_initialized(data);
}
bool XRInterfaceGDNative::initialize() {
ERR_FAIL_COND_V(interface == nullptr, false);
bool initialized = interface->initialize(data);
if (initialized) {
// if we successfully initialize our interface and we don't have a primary interface yet, this becomes our primary interface
XRServer *xr_server = XRServer::get_singleton();
if ((xr_server != nullptr) && (xr_server->get_primary_interface() == nullptr)) {
xr_server->set_primary_interface(this);
};
};
return initialized;
}
void XRInterfaceGDNative::uninitialize() {
ERR_FAIL_COND(interface == nullptr);
XRServer *xr_server = XRServer::get_singleton();
if (xr_server != nullptr) {
// Whatever happens, make sure this is no longer our primary interface
xr_server->clear_primary_interface_if(this);
}
interface->uninitialize(data);
}
Size2 XRInterfaceGDNative::get_render_targetsize() {
ERR_FAIL_COND_V(interface == nullptr, Size2());
godot_vector2 result = interface->get_render_targetsize(data);
Vector2 *vec = (Vector2 *)&result;
return *vec;
}
Transform XRInterfaceGDNative::get_transform_for_eye(XRInterface::Eyes p_eye, const Transform &p_cam_transform) {
Transform *ret;
ERR_FAIL_COND_V(interface == nullptr, Transform());
godot_transform t = interface->get_transform_for_eye(data, (int)p_eye, (godot_transform *)&p_cam_transform);
ret = (Transform *)&t;
return *ret;
}
CameraMatrix XRInterfaceGDNative::get_projection_for_eye(XRInterface::Eyes p_eye, real_t p_aspect, real_t p_z_near, real_t p_z_far) {
CameraMatrix cm;
ERR_FAIL_COND_V(interface == nullptr, CameraMatrix());
interface->fill_projection_for_eye(data, (godot_real *)cm.matrix, (godot_int)p_eye, p_aspect, p_z_near, p_z_far);
return cm;
}
unsigned int XRInterfaceGDNative::get_external_texture_for_eye(XRInterface::Eyes p_eye) {
ERR_FAIL_COND_V(interface == nullptr, 0);
return (unsigned int)interface->get_external_texture_for_eye(data, (godot_int)p_eye);
}
void XRInterfaceGDNative::commit_for_eye(XRInterface::Eyes p_eye, RID p_render_target, const Rect2 &p_screen_rect) {
ERR_FAIL_COND(interface == nullptr);
interface->commit_for_eye(data, (godot_int)p_eye, (godot_rid *)&p_render_target, (godot_rect2 *)&p_screen_rect);
}
void XRInterfaceGDNative::process() {
ERR_FAIL_COND(interface == nullptr);
interface->process(data);
}
void XRInterfaceGDNative::notification(int p_what) {
ERR_FAIL_COND(interface == nullptr);
interface->notification(data, p_what);
}
/////////////////////////////////////////////////////////////////////////////////////
// some helper callbacks
extern "C" {
void GDAPI godot_xr_register_interface(const godot_xr_interface_gdnative *p_interface) {
// Must be on a version 4 plugin
ERR_FAIL_COND_MSG(p_interface->version.major < 4, "GDNative XR interfaces build for Godot 3.x are not supported.");
Ref<XRInterfaceGDNative> new_interface;
new_interface.instance();
new_interface->set_interface((const godot_xr_interface_gdnative *)p_interface);
XRServer::get_singleton()->add_interface(new_interface);
}
godot_real GDAPI godot_xr_get_worldscale() {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL_V(xr_server, 1.0);
return xr_server->get_world_scale();
}
godot_transform GDAPI godot_xr_get_reference_frame() {
godot_transform reference_frame;
Transform *reference_frame_ptr = (Transform *)&reference_frame;
XRServer *xr_server = XRServer::get_singleton();
if (xr_server != nullptr) {
*reference_frame_ptr = xr_server->get_reference_frame();
} else {
godot_transform_new_identity(&reference_frame);
}
return reference_frame;
}
void GDAPI godot_xr_blit(godot_int p_eye, godot_rid *p_render_target, godot_rect2 *p_rect) {
// blits out our texture as is, handy for preview display of one of the eyes that is already rendered with lens distortion on an external HMD
XRInterface::Eyes eye = (XRInterface::Eyes)p_eye;
#if 0
RID *render_target = (RID *)p_render_target;
#endif
Rect2 screen_rect = *(Rect2 *)p_rect;
if (eye == XRInterface::EYE_LEFT) {
screen_rect.size.x /= 2.0;
} else if (p_eye == XRInterface::EYE_RIGHT) {
screen_rect.size.x /= 2.0;
screen_rect.position.x += screen_rect.size.x;
}
#ifndef _MSC_VER
#warning this needs to be redone
#endif
#if 0
RSG::rasterizer->blit_render_target_to_screen(*render_target, screen_rect, 0);
#endif
}
godot_int GDAPI godot_xr_get_texid(godot_rid *p_render_target) {
// In order to send off our textures to display on our hardware we need the opengl texture ID instead of the render target RID
// This is a handy function to expose that.
#if 0
RID *render_target = (RID *)p_render_target;
RID eye_texture = RSG::storage->render_target_get_texture(*render_target);
#endif
#ifndef _MSC_VER
#warning need to obtain this ID again
#endif
uint32_t texid = 0; //RS::get_singleton()->texture_get_texid(eye_texture);
return texid;
}
godot_int GDAPI godot_xr_add_controller(char *p_device_name, godot_int p_hand, godot_bool p_tracks_orientation, godot_bool p_tracks_position) {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL_V(xr_server, 0);
Input *input = Input::get_singleton();
ERR_FAIL_NULL_V(input, 0);
XRPositionalTracker *new_tracker = memnew(XRPositionalTracker);
new_tracker->set_name(p_device_name);
new_tracker->set_type(XRServer::TRACKER_CONTROLLER);
if (p_hand == 1) {
new_tracker->set_hand(XRPositionalTracker::TRACKER_LEFT_HAND);
} else if (p_hand == 2) {
new_tracker->set_hand(XRPositionalTracker::TRACKER_RIGHT_HAND);
}
// also register as joystick...
int joyid = input->get_unused_joy_id();
if (joyid != -1) {
new_tracker->set_joy_id(joyid);
input->joy_connection_changed(joyid, true, p_device_name, "");
}
if (p_tracks_orientation) {
Basis orientation;
new_tracker->set_orientation(orientation);
}
if (p_tracks_position) {
Vector3 position;
new_tracker->set_position(position);
}
// add our tracker to our server and remember its pointer
xr_server->add_tracker(new_tracker);
// note, this ID is only unique within controllers!
return new_tracker->get_tracker_id();
}
void GDAPI godot_xr_remove_controller(godot_int p_controller_id) {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL(xr_server);
Input *input = Input::get_singleton();
ERR_FAIL_NULL(input);
XRPositionalTracker *remove_tracker = xr_server->find_by_type_and_id(XRServer::TRACKER_CONTROLLER, p_controller_id);
if (remove_tracker != nullptr) {
// unset our joystick if applicable
int joyid = remove_tracker->get_joy_id();
if (joyid != -1) {
input->joy_connection_changed(joyid, false, "", "");
remove_tracker->set_joy_id(-1);
}
// remove our tracker from our server
xr_server->remove_tracker(remove_tracker);
memdelete(remove_tracker);
}
}
void GDAPI godot_xr_set_controller_transform(godot_int p_controller_id, godot_transform *p_transform, godot_bool p_tracks_orientation, godot_bool p_tracks_position) {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL(xr_server);
XRPositionalTracker *tracker = xr_server->find_by_type_and_id(XRServer::TRACKER_CONTROLLER, p_controller_id);
if (tracker != nullptr) {
Transform *transform = (Transform *)p_transform;
if (p_tracks_orientation) {
tracker->set_orientation(transform->basis);
}
if (p_tracks_position) {
tracker->set_rw_position(transform->origin);
}
}
}
void GDAPI godot_xr_set_controller_button(godot_int p_controller_id, godot_int p_button, godot_bool p_is_pressed) {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL(xr_server);
Input *input = Input::get_singleton();
ERR_FAIL_NULL(input);
XRPositionalTracker *tracker = xr_server->find_by_type_and_id(XRServer::TRACKER_CONTROLLER, p_controller_id);
if (tracker != nullptr) {
int joyid = tracker->get_joy_id();
if (joyid != -1) {
input->joy_button(joyid, p_button, p_is_pressed);
}
}
}
void GDAPI godot_xr_set_controller_axis(godot_int p_controller_id, godot_int p_axis, godot_real p_value, godot_bool p_can_be_negative) {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL(xr_server);
Input *input = Input::get_singleton();
ERR_FAIL_NULL(input);
XRPositionalTracker *tracker = xr_server->find_by_type_and_id(XRServer::TRACKER_CONTROLLER, p_controller_id);
if (tracker != nullptr) {
int joyid = tracker->get_joy_id();
if (joyid != -1) {
Input::JoyAxis jx;
jx.min = p_can_be_negative ? -1 : 0;
jx.value = p_value;
input->joy_axis(joyid, p_axis, jx);
}
}
}
godot_real GDAPI godot_xr_get_controller_rumble(godot_int p_controller_id) {
XRServer *xr_server = XRServer::get_singleton();
ERR_FAIL_NULL_V(xr_server, 0.0);
XRPositionalTracker *tracker = xr_server->find_by_type_and_id(XRServer::TRACKER_CONTROLLER, p_controller_id);
if (tracker != nullptr) {
return tracker->get_rumble();
}
return 0.0;
}
}