Correct dimensions for touchscreen when single monitor attached

sunshine/input.cpp

@@ -13,8 +13,9 @@ extern "C" {
 #include "main.h"
 #include "config.h"
 #include "utility.h"
-#include "platform/common.h"
 #include "thread_pool.h"
+#include "input.h"
+#include "platform/common.h"
 
 namespace input {
 
@@ -45,6 +46,11 @@ void free_id(std::bitset<N> &gamepad_mask, int id) {
   gamepad_mask[id] = false;
 }
 
+touch_port_event_t touch_port_event;
+platf::touch_port_t touch_port {
+  0, 0, 0, 0
+};
+
 static util::TaskPool::task_id_t task_id {};
 static std::unordered_map<short, bool> key_press {};
 static std::array<std::uint8_t, 5> mouse_press {};
@@ -196,7 +202,20 @@ void passthrough(std::shared_ptr<input_t> &input, PNV_ABS_MOUSE_MOVE_PACKET pack
     input->mouse_left_button_timeout = ENABLE_LEFT_BUTTON_DELAY;
   }
 
-  platf::abs_mouse(platf_input, util::endian::big(packet->x), util::endian::big(packet->y));
+  if(touch_port_event->peek()) {
+    touch_port = *touch_port_event->pop();
+  }
+
+  float x = util::endian::big(packet->x);
+  float y = util::endian::big(packet->y);
+
+  float width  = util::endian::big(packet->width);
+  float height = util::endian::big(packet->height);
+
+  auto scale_x = (float)touch_port.width / width;
+  auto scale_y = (float)touch_port.height / height;
+
+  platf::abs_mouse(platf_input, touch_port, x * scale_x, y * scale_y);
 }
 
 void passthrough(std::shared_ptr<input_t> &input, PNV_MOUSE_BUTTON_PACKET packet) {
@@ -481,6 +500,7 @@ void reset(std::shared_ptr<input_t> &input) {
 }
 
 void init() {
+  touch_port_event = std::make_unique<touch_port_event_t::element_type>();
   platf_input = platf::input();
 }
 

sunshine/input.h

@@ -5,7 +5,8 @@
 #ifndef SUNSHINE_INPUT_H
 #define SUNSHINE_INPUT_H
 
-
+#include "thread_safe.h"
+#include "platform/common.h"
 namespace input {
 
 struct input_t;
@@ -14,9 +15,13 @@ void print(void *input);
 void reset(std::shared_ptr<input_t> &input);
 void passthrough(std::shared_ptr<input_t> &input, std::vector<std::uint8_t> &&input_data);
 
+
 void init();
 
 std::shared_ptr<input_t> alloc();
+
+using touch_port_event_t = std::unique_ptr<safe::event_t<platf::touch_port_t>>;
+extern touch_port_event_t touch_port_event;
 }
 
 #endif //SUNSHINE_INPUT_H

sunshine/platform/common.h

@@ -58,6 +58,18 @@ using namespace std::literals;
   return "unknown"sv;
 }
 
+// Dimensions for touchscreen input
+struct touch_port_t {
+  std::uint32_t offset_x, offset_y;
+  std::uint32_t width, height;
+
+  constexpr touch_port_t(
+    std::uint32_t offset_x, std::uint32_t offset_y,
+    std::uint32_t width, std::uint32_t height) noexcept :
+    offset_x { offset_x }, offset_y { offset_y },
+    width { width }, height { height } {};
+};
+
 struct gamepad_state_t {
   std::uint16_t buttonFlags;
   std::uint8_t lt;
@@ -146,7 +158,7 @@ std::shared_ptr<display_t> display(dev_type_e hwdevice_type);
 
 input_t input();
 void move_mouse(input_t &input, int deltaX, int deltaY);
-void abs_mouse(input_t &input, int x, int y);
+void abs_mouse(input_t &input, const touch_port_t &touch_port, float x, float y);
 void button_mouse(input_t &input, int button, bool release);
 void scroll(input_t &input, int distance);
 void keyboard(input_t &input, uint16_t modcode, bool release);

sunshine/platform/linux/input.cpp

@@ -6,6 +6,7 @@
 #include <X11/Xutil.h>
 #include <X11/extensions/XTest.h>
 
+#include <cmath>
 #include <cstring>
 #include <filesystem>
 
@@ -29,6 +30,11 @@ using uinput_t = util::safe_ptr<libevdev_uinput, libevdev_uinput_destroy>;
 
 using keyboard_t = util::safe_ptr_v2<Display, int, XCloseDisplay>;
 
+constexpr touch_port_t target_touch_port {
+  0, 0,
+  19200, 12000
+};
+
 struct input_raw_t {
 public:
   void clear_touchscreen() {
@@ -136,11 +142,14 @@ public:
   keyboard_t keyboard;
 };
 
-void abs_mouse(input_t &input, int x, int y) {
+void abs_mouse(input_t &input, const touch_port_t &touch_port, float x, float y) {
   auto touchscreen = ((input_raw_t*)input.get())->touch_input.get();
 
-  libevdev_uinput_write_event(touchscreen, EV_ABS, ABS_X, x);
-  libevdev_uinput_write_event(touchscreen, EV_ABS, ABS_Y, y);
+  auto scaled_x = (int)std::lround(x * ((float)target_touch_port.width / (float)touch_port.width));
+  auto scaled_y = (int)std::lround(y * ((float)target_touch_port.height / (float)touch_port.height));
+
+  libevdev_uinput_write_event(touchscreen, EV_ABS, ABS_X, scaled_x + touch_port.offset_x);
+  libevdev_uinput_write_event(touchscreen, EV_ABS, ABS_Y, scaled_y + touch_port.offset_y);
   libevdev_uinput_write_event(touchscreen, EV_KEY, BTN_TOOL_FINGER, 1);
   libevdev_uinput_write_event(touchscreen, EV_KEY, BTN_TOOL_FINGER, 0);
 
@@ -461,7 +470,7 @@ evdev_t touchscreen() {
   input_absinfo absx {
     0,
     0,
-    1919,
+    target_touch_port.width,
     1,
     0,
     28
@@ -470,7 +479,7 @@ evdev_t touchscreen() {
   input_absinfo absy {
     0,
     0,
-    1199,
+    target_touch_port.height,
     1,
     0,
     28

sunshine/video.cpp

@@ -38,10 +38,6 @@ void free_buffer(AVBufferRef *ref) {
   av_buffer_unref(&ref);
 }
 
-void free_packet(AVPacket *packet) {
-  av_packet_free(&packet);
-}
-
 namespace nv {
 
 enum class profile_h264_e : int {
@@ -70,8 +66,6 @@ platf::pix_fmt_e map_pix_fmt(AVPixelFormat fmt);
 void sw_img_to_frame(const platf::img_t &img, frame_t &frame);
 void dxgi_img_to_frame(const platf::img_t &img, frame_t &frame);
 util::Either<buffer_t, int> dxgi_make_hwdevice_ctx(platf::hwdevice_t *hwdevice_ctx);
-void dxgi_img_to_frame(const platf::img_t &img, frame_t &frame);
-util::Either<buffer_t, int> dxgi_make_hwdevice_ctx(platf::hwdevice_t *hwdevice_ctx);
 
 util::Either<buffer_t, int> make_hwdevice_ctx(AVHWDeviceType type, void *hwdevice_ctx);
 int hwframe_ctx(ctx_t &ctx, buffer_t &hwdevice, AVPixelFormat format);
@@ -183,7 +177,7 @@ public:
   session_t(ctx_t &&ctx, frame_t &&frame, util::wrap_ptr<platf::hwdevice_t> &&device) :
     ctx { std::move(ctx) }, frame { std::move(frame) }, device { std::move(device) } {}
 
-  session_t(session_t &&other) :
+  session_t(session_t &&other) noexcept :
     ctx { std::move(other.ctx) }, frame { std::move(other.frame) }, device { std::move(other.device) } {}
 
   // Ensure objects are destroyed in the correct order
@@ -862,6 +856,7 @@ encode_e encode_run_sync(std::vector<std::unique_ptr<sync_session_ctx_t>> &synce
     return encode_e::error;
   }
 
+  input::touch_port_event->raise(0, 0, img->width, img->height);
   std::vector<sync_session_t> synced_sessions;
   for(auto &ctx : synced_session_ctxs) {
     auto synced_session = make_synced_session(disp.get(), encoder, *img, *ctx);
@@ -1069,6 +1064,7 @@ void capture_async(
     if(display->dummy_img(dummy_img.get())) {
       return;
     }
+    input::touch_port_event->raise(0, 0, dummy_img->width, dummy_img->height);
     images->raise(std::move(dummy_img));
 
     encode_run(

sunshine/video.h

@@ -6,6 +6,7 @@
 #define SUNSHINE_VIDEO_H
 
 #include "thread_safe.h"
+#include "input.h"
 #include "platform/common.h"
 
 extern "C" {
@@ -14,16 +15,27 @@ extern "C" {
 
 struct AVPacket;
 namespace video {
-void free_packet(AVPacket *packet);
 
 struct packet_raw_t : public AVPacket {
-  template<class P>
-  explicit packet_raw_t(P *user_data) : channel_data { user_data } {
-    av_init_packet(this);
+  void init_packet() {
+    pts                  = AV_NOPTS_VALUE;
+    dts                  = AV_NOPTS_VALUE;
+    pos                  = -1;
+    duration             = 0;
+    flags                = 0;
+    stream_index         = 0;
+    buf                  = nullptr;
+    side_data            = nullptr;
+    side_data_elems      = 0;
   }
 
-  explicit packet_raw_t(std::nullptr_t null) : channel_data { nullptr } {
-    av_init_packet(this);
+  template<class P>
+  explicit packet_raw_t(P *user_data) : channel_data { user_data } {
+    init_packet();
+  }
+
+  explicit packet_raw_t(std::nullptr_t) : channel_data { nullptr } {
+    init_packet();
   }
 
   ~packet_raw_t() {