1 files changed, 27 insertions, 0 deletions
diff --git a/source/blender/draw/intern/shaders/draw_debug_print_display_vert.glsl b/source/blender/draw/intern/shaders/draw_debug_print_display_vert.glsl
new file mode 100644
index 00000000000..61404bf7f7a
--- /dev/null
+++ b/source/blender/draw/intern/shaders/draw_debug_print_display_vert.glsl
@@ -0,0 +1,27 @@
+
+/**
+ * Display characters using an ascii table. Outputs one point per character.
+ **/
+
+#pragma BLENDER_REQUIRE(common_view_lib.glsl)
+
+void main()
+{
+  char_index = (char_data & 0xFFu) - 0x20u;
+
+  /* Discard invalid chars and the first 3 vertex containing header data. */
+  if (char_index >= 96u || gl_VertexID < 3) {
+    gl_Position = vec4(-1);
+    gl_PointSize = 0.0;
+    return;
+  }
+  uint row = (char_data >> 16u) & 0xFFu;
+  uint col = (char_data >> 8u) & 0xFFu;
+
+  float char_size = 16.0;
+  /* Change anchor point to the top left. */
+  vec2 pos_on_screen = char_size * vec2(col, row) + char_size * 4;
+  gl_Position = vec4(
+      pos_on_screen * drw_view.viewport_size_inverse * vec2(2.0, -2.0) - vec2(1.0, -1.0), 0, 1);
+  gl_PointSize = char_size;
+}
+\ No newline at end of file