blob: 3c7a49fc0f8f72c9aa0b00ee551c473c7a18e3fa [file] [log] [blame]
// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <string>
#include "base/basictypes.h"
#include "chromeos/chromeos_export.h"
// Forward declarations for Xlib and Xrandr.
// This is so unused X definitions don't pollute the namespace.
typedef unsigned long XID;
typedef XID RRMode;
struct _XRRModeInfo;
typedef _XRRModeInfo XRRModeInfo;
struct _XRRScreenResources;
typedef _XRRScreenResources XRRScreenResources;
struct _XRROutputInfo;
typedef _XRROutputInfo XRROutputInfo;
namespace chromeos {
// Generates the human readable string from EDID obtained for |output|.
CHROMEOS_EXPORT std::string GetDisplayName(XID output);
// Gets the overscan flag from |output| and stores to |flag|. Returns true if
// the flag is found. Otherwise returns false and doesn't touch |flag|. The
// output will produce overscan if |flag| is set to true, but the output may
// still produce overscan even though it returns true and |flag| is set to
// false.
CHROMEOS_EXPORT bool GetOutputOverscanFlag(XID output, bool* flag);
// Parses |prop| as EDID data and stores the overscan flag to |flag|. Returns
// true if the flag is found. This is exported for
CHROMEOS_EXPORT bool ParseOutputOverscanFlag(const unsigned char* prop,
unsigned long nitems,
bool* flag);
// Returns true if an output named |name| is an internal display.
CHROMEOS_EXPORT bool IsInternalOutputName(const std::string& name);
// Find a XRRModeInfo that matches |mode|.
CHROMEOS_EXPORT const XRRModeInfo* FindXRRModeInfo(
const XRRScreenResources* screen_resources,
XID mode);
// Find a mode that matches the given size with highest refresh
// rate. Non-interlaced mode takes precedence, so non-interlaced mode
// with a lower refresh rate will be used even if there is an interlaced
// mode with a higher refresh rate.
CHROMEOS_EXPORT RRMode FindOutputModeMatchingSize(
const XRRScreenResources* screen_resources,
const XRROutputInfo* output_info,
size_t width,
size_t height);
namespace test {
// Creates XRRModeInfo for unit tests.
CHROMEOS_EXPORT XRRModeInfo CreateModeInfo(int id,
int width,
int height,
bool interlaced,
float refresh_rate);
} // namespace test
} // namespace chromeos