From b190851d362e8954fc4dc15e29102fb0b715eb60 Mon Sep 17 00:00:00 2001
From: TheBrokenRail <connor24nolan@live.com>
Date: Fri, 15 Jul 2022 22:08:12 -0400
Subject: [PATCH] Hotfix

---
 docs/CHANGELOG.md                           |  1 +
 launcher/src/client/available-feature-flags |  1 +
 media-layer/core/src/media.c                | 14 +++++++++++
 media-layer/include/media-layer/core.h      |  1 +
 media-layer/proxy/src/media-layer-core.c    | 12 ++++++++++
 mods/src/misc/misc.c                        | 26 ++++++++++++++++++---
 6 files changed, 52 insertions(+), 3 deletions(-)

diff --git a/docs/CHANGELOG.md b/docs/CHANGELOG.md
index 0e39e93..f31c8ba 100644
--- a/docs/CHANGELOG.md
+++ b/docs/CHANGELOG.md
@@ -10,6 +10,7 @@
 * Add ``Add Buckets`` Feature Flag (Enabled By Default)
 * Add ``Classic HUD`` Feature Flag (Enabled By Default)
 * Add ``Translucent Toolbar`` Feature Flag (Enabled By Default)
+* Add ``Force EGL`` Feature Flag (Disabled By Default)
 * Fix Sound Pitch/Volume/Attenuation
 * Fix Holding Left-Click When Attacking
 * Don't Force EGL (Should Fix Some NVIDIA Systems)
diff --git a/launcher/src/client/available-feature-flags b/launcher/src/client/available-feature-flags
index fab40c3..4bc5500 100644
--- a/launcher/src/client/available-feature-flags
+++ b/launcher/src/client/available-feature-flags
@@ -41,3 +41,4 @@ FALSE Remove Forced GUI Lag (Can Break Joining Servers)
 TRUE Add Buckets
 TRUE Classic HUD
 TRUE Translucent Toolbar
+FALSE Force EGL
diff --git a/media-layer/core/src/media.c b/media-layer/core/src/media.c
index 9c49681..eac865d 100644
--- a/media-layer/core/src/media.c
+++ b/media-layer/core/src/media.c
@@ -251,6 +251,15 @@ void media_disable_vsync() {
 #endif
 }
 
+// Force EGL
+static int force_egl = 0;
+void media_force_egl() {
+    if (force_egl == -1) {
+        IMPOSSIBLE();
+    }
+    force_egl = 1;
+}
+
 // Init Media Layer
 #define GL_VERSION 0x1f02
 typedef const unsigned char *(*glGetString_t)(unsigned int name);
@@ -273,6 +282,11 @@ void SDL_WM_SetCaption(const char *title, __attribute__((unused)) const char *ic
     glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 1);
     glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 1);
 #endif
+    // Use EGL
+    if (force_egl) {
+        glfwWindowHint(GLFW_CONTEXT_CREATION_API, GLFW_EGL_CONTEXT_API);
+    }
+    force_egl = -1;
     // Extra Settings
     glfwWindowHint(GLFW_AUTO_ICONIFY, GLFW_FALSE);
     glfwWindowHint(GLFW_ALPHA_BITS, 0); // Fix Transparent Window On Wayland
diff --git a/media-layer/include/media-layer/core.h b/media-layer/include/media-layer/core.h
index 14c10e0..edc6118 100644
--- a/media-layer/include/media-layer/core.h
+++ b/media-layer/include/media-layer/core.h
@@ -16,6 +16,7 @@ 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_force_egl();
 void media_set_raw_mouse_motion_enabled(int enabled);
 
 #ifdef __cplusplus
diff --git a/media-layer/proxy/src/media-layer-core.c b/media-layer/proxy/src/media-layer-core.c
index 17c7b93..53f7dae 100644
--- a/media-layer/proxy/src/media-layer-core.c
+++ b/media-layer/proxy/src/media-layer-core.c
@@ -339,3 +339,15 @@ CALL(64, media_set_raw_mouse_motion_enabled, void, (int enabled)) {
     media_set_raw_mouse_motion_enabled(enabled);
 #endif
 }
+
+CALL(66, media_force_egl, void, ()) {
+#if defined(MEDIA_LAYER_PROXY_SERVER)
+    // Lock Proxy
+    start_proxy_call();
+    // Release Proxy
+    end_proxy_call();
+#else
+    // Run
+    media_force_egl();
+#endif
+}
diff --git a/mods/src/misc/misc.c b/mods/src/misc/misc.c
index a769996..5eb9dee 100644
--- a/mods/src/misc/misc.c
+++ b/mods/src/misc/misc.c
@@ -116,16 +116,31 @@ static void Inventory_selectSlot_injection(unsigned char *inventory, int32_t slo
 }
 
 // Translucent Toolbar
+static GLfloat reset_red;
+static GLfloat reset_green;
+static GLfloat reset_blue;
+static GLfloat reset_alpha;
 static void Gui_renderToolBar_injection(unsigned char *gui, float param_1, int32_t param_2, int32_t param_3) {
     // Call Original Method
-    glEnable(GL_BLEND);
+    int was_blend_enabled = glIsEnabled(GL_BLEND);
+    if (!was_blend_enabled) {
+        glEnable(GL_BLEND);
+    }
     glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
     (*Gui_renderToolBar)(gui, param_1, param_2, param_3);
-    glDisable(GL_BLEND);
+    glColor4f(reset_red, reset_green, reset_blue, reset_alpha);
+    if (!was_blend_enabled) {
+        glDisable(GL_BLEND);
+    }
 }
-static void Gui_renderToolBar_glColor4f_injection(GLfloat red, GLfloat green, GLfloat blue, __attribute__((unused)) GLfloat alpha) {
+static void Gui_renderToolBar_glColor4f_injection(GLfloat red, GLfloat green, GLfloat blue, GLfloat alpha) {
     // Fix Alpha
     glColor4f(red, green, blue, 1.0f);
+    // Stroe For Reset
+    reset_red = red;
+    reset_green = green;
+    reset_blue = blue;
+    reset_alpha = alpha;
 }
 
 // Sanitize Username
@@ -353,6 +368,11 @@ void init_misc() {
         media_disable_vsync();
     }
 
+    // Force EGL
+    if (feature_has("Force EGL", server_disabled)) {
+        media_force_egl();
+    }
+
     // Remove Forced GUI Lag
     if (feature_has("Remove Forced GUI Lag (Can Break Joining Servers)", server_enabled)) {
         overwrite_calls((void *) sleepMs, (void *) nop);