The Update(TM), Part 1

src/canvas.h

@@ -0,0 +1,33 @@
+#pragma once
+
+#include "texture.h"
+#include "shader.h"
+
+#define CANVAS_ZOOM_MIN 1
+#define CANVAS_ZOOM_MAX 1000
+#define CANVAS_ZOOM_STEP 25
+#define CANVAS_LINE_LENGTH 100000.0f
+#define CANVAS_GRID_RANGE 100
+#define CANVAS_GRID_MIN 1
+#define CANVAS_GRID_MAX 100
+
+const f32 CANVAS_AXIS_VERTICES[] = 
+{
+    -CANVAS_LINE_LENGTH,      0.0f,
+    CANVAS_LINE_LENGTH,       0.0f,
+    0.0f,       -CANVAS_LINE_LENGTH,
+    0.0f,        CANVAS_LINE_LENGTH
+};
+
+struct Canvas
+{
+    GLuint fbo;
+    GLuint rbo;
+    GLuint texture;
+    GLuint textureEBO;
+    GLuint textureVAO;
+    GLuint textureVBO;
+    vec2 size;
+};
+
+void canvas_init(Canvas* self, vec2 size);