1 files changed, 42 insertions, 0 deletions
diff --git a/render_glyphs.hlvs b/render_glyphs.hlvs
new file mode 100644
index 0000000..be38a51
--- /dev/null
+++ b/render_glyphs.hlvs
@@ -0,0 +1,42 @@
+/* Automatically generated file; do not edit */
+
+// This vertex shader takes inputs in integer pixels, as well as
+// a glyph position in integer texels, and outputs
+// in floating point coordinates understood by the DX drawing system.
+
+struct VS_INPUT {
+    uint2 pos :POSITION;
+    uint2 glyph_pos :TEXCOORD0;
+};
+
+struct VS_OUTPUT {
+    float2 tile_pos  :TEXCOORD0;
+    float2 glyph_pos :TEXCOORD1;
+    float2 out_pos   :TEXCOORD2;
+    float4 pos       :SV_POSITION;
+};
+
+cbuffer info :register(b0) {
+    float2 wh;  // Half width, half height of target drawable
+    uint2  tile_offset;
+    uint2  stipple_size;
+    uint2  clip_offset;   // unused (glyph pos is taken from input.glyph_pos)
+    uint2  clip_size;     // size of the entire glyph atlas
+}
+
+VS_OUTPUT main(VS_INPUT input)
+{
+    VS_OUTPUT output;
+    output.pos.x = input.pos.x / wh.x - 1.0f;
+    output.pos.y = -(input.pos.y / wh.y - 1.0f);
+    output.pos.z = 0;
+    output.pos.w = 1;
+
+    output.tile_pos = input.glyph_pos;
+    output.tile_pos /= (float2)stipple_size;
+
+    output.glyph_pos = 0;
+    output.out_pos = 0;
+
+    return output;
+}