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84 lines
2.2 KiB
C++
84 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=8 et :
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#define MOZ_FATAL_ASSERTIONS_FOR_THREAD_SAFETY
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#include "nsBaseScreen.h"
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NS_IMPL_ISUPPORTS(nsBaseScreen, nsIScreen)
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nsBaseScreen::nsBaseScreen()
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{
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for (uint32_t i = 0; i < nsIScreen::BRIGHTNESS_LEVELS; i++)
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mBrightnessLocks[i] = 0;
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}
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nsBaseScreen::~nsBaseScreen() { }
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NS_IMETHODIMP
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nsBaseScreen::GetRectDisplayPix(int32_t *outLeft, int32_t *outTop,
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int32_t *outWidth, int32_t *outHeight)
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{
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return GetRect(outLeft, outTop, outWidth, outHeight);
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}
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NS_IMETHODIMP
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nsBaseScreen::GetAvailRectDisplayPix(int32_t *outLeft, int32_t *outTop,
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int32_t *outWidth, int32_t *outHeight)
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{
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return GetAvailRect(outLeft, outTop, outWidth, outHeight);
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}
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NS_IMETHODIMP
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nsBaseScreen::LockMinimumBrightness(uint32_t aBrightness)
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{
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MOZ_ASSERT(aBrightness < nsIScreen::BRIGHTNESS_LEVELS,
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"Invalid brightness level to lock");
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mBrightnessLocks[aBrightness]++;
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MOZ_ASSERT(mBrightnessLocks[aBrightness] > 0,
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"Overflow after locking brightness level");
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CheckMinimumBrightness();
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return NS_OK;
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}
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NS_IMETHODIMP
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nsBaseScreen::UnlockMinimumBrightness(uint32_t aBrightness)
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{
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MOZ_ASSERT(aBrightness < nsIScreen::BRIGHTNESS_LEVELS,
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"Invalid brightness level to lock");
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MOZ_ASSERT(mBrightnessLocks[aBrightness] > 0,
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"Unlocking a brightness level with no corresponding lock");
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mBrightnessLocks[aBrightness]--;
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CheckMinimumBrightness();
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return NS_OK;
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}
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void
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nsBaseScreen::CheckMinimumBrightness()
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{
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uint32_t brightness = nsIScreen::BRIGHTNESS_LEVELS;
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for (int32_t i = nsIScreen::BRIGHTNESS_LEVELS - 1; i >=0; i--) {
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if (mBrightnessLocks[i] > 0) {
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brightness = i;
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break;
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}
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}
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ApplyMinimumBrightness(brightness);
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}
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NS_IMETHODIMP
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nsBaseScreen::GetContentsScaleFactor(double* aContentsScaleFactor)
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{
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*aContentsScaleFactor = 1.0;
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return NS_OK;
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}
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