gecko-dev/gfx/webrender_bindings/webrender_ffi.h

116 строки
3.1 KiB
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_egl(void* glcontext_ptr);
bool is_glcontext_angle(void* glcontext_ptr);
bool gfx_use_wrench();
const char* gfx_wr_resource_path_override();
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);
void gecko_profiler_register_thread(const char* threadname);
void gecko_profiler_unregister_thread();
// Prelude of types necessary before including webrender_ffi_generated.h
namespace mozilla {
namespace wr {
struct FontInstanceFlags {
uint32_t bits;
bool operator==(const FontInstanceFlags& aOther) const {
return bits == aOther.bits;
}
FontInstanceFlags& operator=(uint32_t aBits) {
bits = aBits;
return *this;
}
FontInstanceFlags& operator|=(uint32_t aBits) {
bits |= aBits;
return *this;
}
FontInstanceFlags operator|(uint32_t aBits) {
FontInstanceFlags flags = { bits | aBits };
return flags;
}
FontInstanceFlags& operator&=(uint32_t aBits) {
bits &= aBits;
return *this;
}
FontInstanceFlags operator&(uint32_t aBits) {
FontInstanceFlags flags = { bits & aBits };
return flags;
}
enum : uint32_t {
SYNTHETIC_ITALICS = 1 << 0,
SYNTHETIC_BOLD = 1 << 1,
EMBEDDED_BITMAPS = 1 << 2,
SUBPIXEL_BGR = 1 << 3,
TRANSPOSE = 1 << 4,
FLIP_X = 1 << 5,
FLIP_Y = 1 << 6,
FORCE_GDI = 1 << 16,
FONT_SMOOTHING = 1 << 16,
FORCE_AUTOHINT = 1 << 16,
NO_AUTOHINT = 1 << 17,
VERTICAL_LAYOUT = 1 << 18
};
};
} // namespace wr
} // namespace mozilla
} // extern "C"
// Some useful defines to stub out webrender binding functions for when we
// build gecko without webrender. We try to tell the compiler these functions
// are unreachable in that case, but VC++ emits a warning if it finds any
// unreachable functions invoked from destructors. That warning gets turned into
// an error and causes the build to fail. So for wr_* functions called by
// destructors in C++ classes, use WR_DESTRUCTOR_SAFE_FUNC instead, which omits
// the unreachable annotation.
#ifdef MOZ_BUILD_WEBRENDER
# define WR_INLINE
# define WR_FUNC
# define WR_DESTRUCTOR_SAFE_FUNC
#else
# define WR_INLINE inline
# define WR_FUNC { MOZ_MAKE_COMPILER_ASSUME_IS_UNREACHABLE("WebRender disabled"); }
# define WR_DESTRUCTOR_SAFE_FUNC {}
#endif
#include "webrender_ffi_generated.h"
#undef WR_FUNC
#undef WR_DESTRUCTOR_SAFE_FUNC
#endif // WR_h