Allow Disabling Raw Mouse Motion

launcher/client-data/lib/minecraft-pi-reborn-client/available-feature-flags

@@ -29,3 +29,4 @@ TRUE External Server Support
 TRUE Load Language Files
 TRUE Implement Sound Engine
 TRUE Close Current Screen On Death
+FALSE Disable Raw Mouse Motion (Not Recommended)

media-layer/core/src/media.c

@@ -27,7 +27,7 @@ void media_set_interactable(int toggle) {
 // GLFW Code Not Needed In Headless Mode
 #ifndef MCPI_HEADLESS_MODE
 
-static GLFWwindow *glfw_window;
+static GLFWwindow *glfw_window = NULL;
 
 // Handle GLFW Error
 static void glfw_error(__attribute__((unused)) int error, const char *description) {
@@ -227,6 +227,20 @@ static void glfw_scroll(__attribute__((unused)) GLFWwindow *window, __attribute_
 // Track Media Layer State
 static int is_running = 0;
 
+// Track If Raw Mouse Motion Is Enabled
+static int raw_mouse_motion_enabled = 1;
+void media_set_raw_mouse_motion_enabled(int enabled) {
+    raw_mouse_motion_enabled = enabled;
+#ifndef MCPI_HEADLESS_MODE
+    if (is_running) {
+        glfwSetInputMode(glfw_window, GLFW_RAW_MOUSE_MOTION, GLFW_FALSE);
+    }
+#endif // #ifndef MCPI_HEADLESS_MODE
+    if (!raw_mouse_motion_enabled) {
+        WARN("%s", "Raw mouse motion has been DISABLED, this IS NOT recommended, and should only ever be used on systems that don't support or have broken raw mouse motion.");
+    }
+}
+
 // Disable V-Sync
 static int disable_vsync = 0;
 void media_disable_vsync() {
@@ -409,7 +423,7 @@ static void update_cursor() {
             glfwSetInputMode(glfw_window, GLFW_CURSOR, new_mode);
 
             // Handle Cursor Lock/Unlock
-            if ((new_mode == GLFW_CURSOR_DISABLED && old_mode != GLFW_CURSOR_DISABLED) || (new_mode != GLFW_CURSOR_DISABLED && old_mode == GLFW_CURSOR_DISABLED)) {
+            if (raw_mouse_motion_enabled && ((new_mode == GLFW_CURSOR_DISABLED && old_mode != GLFW_CURSOR_DISABLED) || (new_mode != GLFW_CURSOR_DISABLED && old_mode == GLFW_CURSOR_DISABLED))) {
                 // Use Raw Mouse Motion
                 glfwSetInputMode(glfw_window, GLFW_RAW_MOUSE_MOTION, new_mode == GLFW_CURSOR_DISABLED ? GLFW_TRUE : GLFW_FALSE);
             }

media-layer/include/media-layer/core.h

@@ -17,6 +17,7 @@ void media_cleanup();
 void media_get_framebuffer_size(int *width, int *height);
 void media_set_interactable(int is_interactable);
 void media_disable_vsync();
+void media_set_raw_mouse_motion_enabled(int enabled);
 
 #ifdef __cplusplus
 }

media-layer/proxy/src/media-layer-core.c

@@ -336,3 +336,20 @@ CALL(63, media_disable_vsync, void, ()) {
     media_disable_vsync();
 #endif
 }
+
+CALL(64, media_set_raw_mouse_motion_enabled, void, (int enabled)) {
+#if defined(MEDIA_LAYER_PROXY_SERVER)
+    // Lock Proxy
+    start_proxy_call();
+
+    // Arguments
+    write_int(enabled);
+
+    // Release Proxy
+    end_proxy_call();
+#else
+    int enabled = read_int();
+    // Run
+    media_set_raw_mouse_motion_enabled(enabled);
+#endif
+}

media-layer/stubs/CMakeLists.txt

@@ -34,7 +34,7 @@ if(BUILD_ARM_COMPONENTS)
 
     # MCPI Depends On GLESv2, But Uses GLESv1_CM
     install_symlink("libGLESv1_CM.so.1" "${MCPI_LIB_DIR}/libGLESv2.so")
-    # Prevent MCPI From Linking To The Legacy GL Driver When Directly Linking To GL
+    # Prevent MCPI From Linking To The Legacy GL Driver When Directly Linking To GL (RPI-Specific)
     if(NOT MCPI_HEADLESS_MODE AND NOT MCPI_USE_MEDIA_LAYER_PROXY)
         # Symlinks
         install_symlink("/usr/lib/arm-linux-gnueabihf/libEGL.so.1" "${MCPI_LIB_DIR}/libEGL.so")

mods/src/input/input.cpp

@@ -2,6 +2,7 @@
 
 #include <libreborn/libreborn.h>
 #include <symbols/minecraft.h>
+#include <media-layer/core.h>
 
 #include "../feature/feature.h"
 #include "../init/init.h"
@@ -46,4 +47,9 @@ void init_input() {
 
     // Allow Attacking Mobs
     _init_attack();
+
+    // Disable Raw Mouse Motion
+    if (feature_has("Disable Raw Mouse Motion (Not Recommended)", 9)) {
+        media_set_raw_mouse_motion_enabled(0);
+    }
 }