From 6c3305be10c1649e9e768f849b193b5d27201975 Mon Sep 17 00:00:00 2001
From: Dominic Masters <dominic@domsplace.com>
Date: Sat, 1 Mar 2025 22:33:49 -0600
Subject: [PATCH] Fixed flicking on AMD

---
 src/duskgl/display/render.c                 |  8 ++++++++
 src/duskgl/display/shader/data/transforms.c |  6 +++++-
 src/duskglfw/display/window.c               | 16 ++++++++++++----
 src/duskglfw/display/window.h               |  4 ++--
 4 files changed, 27 insertions(+), 7 deletions(-)

diff --git a/src/duskgl/display/render.c b/src/duskgl/display/render.c
index 37480f4..c0e266f 100644
--- a/src/duskgl/display/render.c
+++ b/src/duskgl/display/render.c
@@ -10,17 +10,25 @@
 #include "display/scene.h"
 #include "display/shader/shadermanager.h"
 #include "display/quad.h"
+#include "display/window.h"
 
 render_t RENDER;
 
 void renderInit() {
   memset(&RENDER, 0, sizeof(render_t));
+  
+  glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
+  assertNoGLError();
 
   shaderManagerInit();
   quadInit();
 }
 
 void renderUpdate() {
+  glViewport(0, 0, WINDOW_WIDTH, WINDOW_HEIGHT);
+  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+  assertNoGLError();
+
   // Update shader stuff
   shaderManagerUpdate();
   
diff --git a/src/duskgl/display/shader/data/transforms.c b/src/duskgl/display/shader/data/transforms.c
index 9876236..1e35ad2 100644
--- a/src/duskgl/display/shader/data/transforms.c
+++ b/src/duskgl/display/shader/data/transforms.c
@@ -12,10 +12,14 @@ shaderbuffer_t TRANSFORMS_BUFFER;
 transformsdata_t TRANSFORMS_DATA;
 
 void transformsInit() {
+  memset(&TRANSFORMS_DATA, 0, sizeof(transformsdata_t));
   shaderBufferInit(&TRANSFORMS_BUFFER, sizeof(transformsdata_t));
 
   glm_mat4_identity(TRANSFORMS_DATA.projection);
   glm_mat4_identity(TRANSFORMS_DATA.view);
+
+  TRANSFORMS_DATA.resolution[0] = WINDOW_WIDTH;
+  TRANSFORMS_DATA.resolution[1] = WINDOW_HEIGHT;
 }
 
 void transformsUpdate() {
@@ -25,7 +29,7 @@ void transformsUpdate() {
   glm_perspective(
     glm_rad(45.0f),
     TRANSFORMS_DATA.resolution[0] / TRANSFORMS_DATA.resolution[1],
-    0.1f,
+    1.0f,
     100.0f,
     TRANSFORMS_DATA.projection
   );
diff --git a/src/duskglfw/display/window.c b/src/duskglfw/display/window.c
index ecb393f..0493ddb 100644
--- a/src/duskglfw/display/window.c
+++ b/src/duskglfw/display/window.c
@@ -8,8 +8,8 @@
 #include "window.h"
 
 GLFWwindow* window;
-int32_t WINDOW_WIDTH;
-int32_t WINDOW_HEIGHT;
+uint32_t WINDOW_WIDTH;
+uint32_t WINDOW_HEIGHT;
 
 int32_t windowInit() {
   // Initialize GLFW
@@ -29,14 +29,21 @@ int32_t windowInit() {
   glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
   glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
   glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+  glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
   glfwWindowHint(GLFW_RESIZABLE, GLFW_TRUE);
   glfwWindowHint(GLFW_MAXIMIZED, GLFW_FALSE);
+  glfwWindowHint(GLFW_VISIBLE, GLFW_TRUE);
+  glfwWindowHint(GLFW_DOUBLEBUFFER, GLFW_TRUE);
 
   window = glfwCreateWindow(
     WINDOW_WIDTH_DEFAULT, WINDOW_HEIGHT_DEFAULT,
     "Dusk",
     NULL, NULL
   );
+
+  WINDOW_WIDTH = WINDOW_WIDTH_DEFAULT;
+  WINDOW_HEIGHT = WINDOW_HEIGHT_DEFAULT;
+
   if(!window) {
     glfwTerminate();
     return -2;
@@ -44,8 +51,9 @@ int32_t windowInit() {
 
   // Make the window's context current
   glfwMakeContextCurrent(window);
+  glfwSwapInterval(1);
 
-  // Get initial framebuffer size
+  // Get initial framebuffer sizeglfwCreateWindow
   glfwGetFramebufferSize(window, &WINDOW_WIDTH, &WINDOW_HEIGHT);
 
   // Load OpenGL functions using glad or another loader here if necessary
@@ -61,7 +69,7 @@ bool_t windowShouldClose() {
 void windowUpdate() {
   glfwSwapBuffers(window);
   glfwPollEvents();
-
+  
   glfwGetFramebufferSize(window, &WINDOW_WIDTH, &WINDOW_HEIGHT);
 }
 
diff --git a/src/duskglfw/display/window.h b/src/duskglfw/display/window.h
index be2722a..e2df8b6 100644
--- a/src/duskglfw/display/window.h
+++ b/src/duskglfw/display/window.h
@@ -13,8 +13,8 @@
 #define WINDOW_HEIGHT_DEFAULT SCREEN_HEIGHT*3
 
 extern GLFWwindow* window;
-extern int32_t WINDOW_WIDTH;
-extern int32_t WINDOW_HEIGHT;
+extern uint32_t WINDOW_WIDTH;
+extern uint32_t WINDOW_HEIGHT;
 
 /**
  * Initializes the game render window.