1 files changed, 123 insertions, 0 deletions
diff --git a/gfx/webrender_bindings/webrender_ffi.h b/gfx/webrender_bindings/webrender_ffi.h
new file mode 100644
index 0000000000..e9c8be1ef4
--- /dev/null
+++ b/gfx/webrender_bindings/webrender_ffi.h
@@ -0,0 +1,123 @@
+/* -*- 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 WR_h
+#define WR_h
+
+#include "mozilla/gfx/Types.h"
+#include "nsTArray.h"
+
+extern "C" {
+
+// ----
+// Functions invoked from Rust code
+// ----
+
+bool is_in_compositor_thread();
+bool is_in_main_thread();
+bool is_in_render_thread();
+bool is_glcontext_gles(void* glcontext_ptr);
+bool is_glcontext_angle(void* glcontext_ptr);
+bool gfx_use_wrench();
+const char* gfx_wr_resource_path_override();
+bool gfx_wr_use_optimized_shaders();
+void gfx_critical_note(const char* msg);
+void gfx_critical_error(const char* msg);
+void gecko_printf_stderr_output(const char* msg);
+void* get_proc_address_from_glcontext(void* glcontext_ptr,
+                                      const char* procname);
+
+bool gecko_profiler_thread_is_being_profiled();
+
+// IMPORTANT: Keep this synchronized with enumerate_interners in
+// gfx/wr/webrender_api
+#define WEBRENDER_FOR_EACH_INTERNER(macro) \
+  macro(clip);                             \
+  macro(prim);                             \
+  macro(normal_border);                    \
+  macro(image_border);                     \
+  macro(image);                            \
+  macro(yuv_image);                        \
+  macro(line_decoration);                  \
+  macro(linear_grad);                      \
+  macro(radial_grad);                      \
+  macro(conic_grad);                       \
+  macro(picture);                          \
+  macro(text_run);                         \
+  macro(filterdata);                       \
+  macro(backdrop_capture);                 \
+  macro(backdrop_render);                  \
+  macro(polyon);
+
+// Prelude of types necessary before including webrender_ffi_generated.h
+namespace mozilla {
+namespace wr {
+
+// Because this struct is macro-generated on the Rust side, cbindgen can't see
+// it. Work around that by re-declaring it here.
+#define DECLARE_MEMBER(id) uintptr_t id;
+struct InternerSubReport {
+  WEBRENDER_FOR_EACH_INTERNER(DECLARE_MEMBER)
+};
+
+#undef DECLARE_MEMBER
+
+struct Transaction;
+struct WrWindowId;
+struct DocumentId;
+struct WrPipelineInfo;
+
+struct WrPipelineIdAndEpoch;
+using WrPipelineIdEpochs = nsTArray<WrPipelineIdAndEpoch>;
+
+}  // namespace wr
+}  // namespace mozilla
+
+void apz_register_updater(mozilla::wr::WrWindowId aWindowId);
+void apz_pre_scene_swap(mozilla::wr::WrWindowId aWindowId);
+void apz_post_scene_swap(mozilla::wr::WrWindowId aWindowId,
+                         const mozilla::wr::WrPipelineInfo* aInfo);
+void apz_run_updater(mozilla::wr::WrWindowId aWindowId);
+void apz_deregister_updater(mozilla::wr::WrWindowId aWindowId);
+
+void apz_register_sampler(mozilla::wr::WrWindowId aWindowId);
+void apz_sample_transforms(mozilla::wr::WrWindowId aWindowId,
+                           const uint64_t* aGeneratedFrameId,
+                           mozilla::wr::Transaction* aTransaction);
+void apz_deregister_sampler(mozilla::wr::WrWindowId aWindowId);
+
+void omta_register_sampler(mozilla::wr::WrWindowId aWindowId);
+void omta_sample(mozilla::wr::WrWindowId aWindowId,
+                 mozilla::wr::Transaction* aTransaction);
+void omta_deregister_sampler(mozilla::wr::WrWindowId aWindowId);
+}  // extern "C"
+
+// Work-around Solaris define which conflcits with WR color constant, see
+// bug 1773491.
+#pragma push_macro("TRANSPARENT")
+#undef TRANSPARENT
+
+#include "webrender_ffi_generated.h"
+
+#pragma pop_macro("TRANSPARENT")
+
+template struct mozilla::wr::Point2D<int32_t, mozilla::wr::DevicePixel>;
+template struct mozilla::wr::Point2D<int, mozilla::wr::WorldPixel>;
+template struct mozilla::wr::Point2D<float, mozilla::wr::WorldPixel>;
+template struct mozilla::wr::Box2D<int32_t, mozilla::wr::DevicePixel>;
+template struct mozilla::wr::Box2D<int, mozilla::wr::LayoutPixel>;
+
+namespace mozilla {
+namespace wr {
+
+// Cast a blob image key into a regular image for use in
+// a display item.
+inline ImageKey AsImageKey(BlobImageKey aKey) { return aKey._0; }
+
+}  // namespace wr
+}  // namespace mozilla
+
+#endif  // WR_h