Quelle  webrender_ffi.h   Sprache: C

/* -*- 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, comma_like_delim) \
  macro(clip) comma_like_delim macro(prim)                   \
  comma_like_delim macro(normal_border)                      \
  comma_like_delim macro(image_border)                       \
  comma_like_delim macro(image)                              \
  comma_like_delim macro(yuv_image)                          \
  comma_like_delim macro(line_decoration)                    \
  comma_like_delim macro(linear_grad)                        \
  comma_like_delim macro(radial_grad)                        \
  comma_like_delim macro(conic_grad)                         \
  comma_like_delim macro(picture)                            \
  comma_like_delim macro(text_run)                           \
  comma_like_delim macro(filterdata)                         \
  comma_like_delim macro(backdrop_capture)                   \
  comma_like_delim macro(backdrop_render)                    \
  comma_like_delim macro(polyon)                             \
  comma_like_delim macro(box_shadow)

// 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