1 files changed, 66 insertions, 0 deletions
diff --git a/gfx/src/WPFGpuRaster.h b/gfx/src/WPFGpuRaster.h
new file mode 100644
index 0000000000..2dcd3af648
--- /dev/null
+++ b/gfx/src/WPFGpuRaster.h
@@ -0,0 +1,66 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef MOZILLA_GFX_WPF_GPU_RASTER_H
+#define MOZILLA_GFX_WPF_GPU_RASTER_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+namespace WGR {
+
+enum class FillMode { EvenOdd, Winding };
+struct PathBuilder;
+struct Point {
+  int32_t x;
+  int32_t y;
+};
+constexpr uint8_t PathPointTypeStart = 0;
+constexpr uint8_t PathPointTypeLine = 1;
+constexpr uint8_t PathPointTypeBezier = 3;
+constexpr uint8_t PathPointTypePathTypeMask = 0x07;
+constexpr uint8_t PathPointTypeCloseSubpath = 0x80;
+struct Path {
+  FillMode fill_mode;
+  const Point* points;
+  size_t num_points;
+  const uint8_t* types;
+  size_t num_types;
+};
+struct OutputVertex {
+  float x;
+  float y;
+  float coverage;
+};
+struct VertexBuffer {
+  OutputVertex* data;
+  size_t len;
+};
+
+extern "C" {
+PathBuilder* wgr_new_builder();
+void wgr_builder_reset(PathBuilder* pb);
+void wgr_builder_move_to(PathBuilder* pb, float x, float y);
+void wgr_builder_line_to(PathBuilder* pb, float x, float y);
+void wgr_builder_curve_to(PathBuilder* pb, float c1x, float c1y, float c2x,
+                          float c2y, float x, float y);
+void wgr_builder_quad_to(PathBuilder* pb, float cx, float cy, float x, float y);
+void wgr_builder_close(PathBuilder* pb);
+void wgr_builder_set_fill_mode(PathBuilder* pb, FillMode fill_mode);
+Path wgr_builder_get_path(PathBuilder* pb);
+VertexBuffer wgr_path_rasterize_to_tri_list(
+    const Path* p, int32_t clip_x, int32_t clip_y, int32_t clip_width,
+    int32_t clip_height, bool need_inside = true, bool need_outside = false,
+    bool rasterization_truncates = false, OutputVertex* output_ptr = nullptr,
+    size_t output_capacity = 0);
+void wgr_path_release(Path p);
+void wgr_vertex_buffer_release(VertexBuffer vb);
+void wgr_builder_release(PathBuilder* pb);
+};
+
+}  // namespace WGR
+
+#endif  // MOZILLA_GFX_WPF_GPU_RASTER_H