draw text.

src/display/ui/CMakeLists.txt

@@ -7,4 +7,5 @@
 target_sources(${DUSK_TARGET_NAME}
   PRIVATE
     rendertext.c
+    ui.c
 )

src/display/ui/ui.c

@@ -0,0 +1,49 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#include "ui.h"
+#include "rendertext.h"
+#include "display/framebuffer/framebuffer.h"
+
+camera_t UI_CAMERA;
+
+errorret_t uiInit(void) {
+  errorChain(renderTextInit());
+
+  cameraInit(&UI_CAMERA);
+  UI_CAMERA.projType = CAMERA_PROJECTION_TYPE_ORTHOGRAPHIC;
+  
+  UI_CAMERA.orthographic.left = 0.0f;
+  UI_CAMERA.orthographic.top = 0.0f;
+  UI_CAMERA.orthographic.right = frameBufferGetWidth(&FRAMEBUFFER_BACKBUFFER);
+  UI_CAMERA.orthographic.bottom = frameBufferGetHeight(&FRAMEBUFFER_BACKBUFFER);
+  UI_CAMERA.nearClip = -1.0f;
+  UI_CAMERA.farClip = 1.0f;
+
+  UI_CAMERA.viewType = CAMERA_VIEW_TYPE_MATRIX;
+  glm_mat4_identity(UI_CAMERA.view);
+
+  errorOk();
+}
+
+void uiUpdate(void) {
+}
+
+void uiRender(void) {
+  UI_CAMERA.orthographic.right = frameBufferGetWidth(FRAMEBUFFER_BOUND);
+  UI_CAMERA.orthographic.bottom = frameBufferGetHeight(FRAMEBUFFER_BOUND);
+  
+  cameraPushMatrix(&UI_CAMERA);
+
+  renderTextDraw(10.0f, 10.0f, "Dusk Engine UI", 0xFF, 0xFF, 0xFF);
+  
+  cameraPopMatrix();
+}
+
+void uiDispose(void) {
+  renderTextDispose();
+}

src/display/ui/ui.h

@@ -0,0 +1,17 @@
+/**
+ * Copyright (c) 2025 Dominic Masters
+ * 
+ * This software is released under the MIT License.
+ * https://opensource.org/licenses/MIT
+ */
+
+#pragma once
+#include "error/error.h"
+#include "display/camera.h"
+
+extern camera_t UI_CAMERA;
+
+errorret_t uiInit(void);
+void uiUpdate(void);
+void uiRender(void);
+void uiDispose(void);