The Tor Browser / file diff

     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/gfx/skia/trunk/src/core/SkDeviceProfile.cpp	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,77 @@
     1.4 +/*
     1.5 + * Copyright 2012 Google Inc.
     1.6 + *
     1.7 + * Use of this source code is governed by a BSD-style license that can be
     1.8 + * found in the LICENSE file.
     1.9 + */
    1.10 +
    1.11 +
    1.12 +#include "SkDeviceProfile.h"
    1.13 +#include "SkThread.h"
    1.14 +
    1.15 +#define DEFAULT_GAMMAEXP        2.2f
    1.16 +#define DEFAULT_CONTRASTSCALE   0.5f
    1.17 +#define DEFAULT_LCDCONFIG       SkDeviceProfile::kNone_LCDConfig
    1.18 +#define DEFAULT_FONTHINTLEVEL   SkDeviceProfile::kSlight_FontHintLevel
    1.19 +
    1.20 +static float pin(float value, float min, float max) {
    1.21 +    if (value < min) {
    1.22 +        value = min;
    1.23 +    } else if (value > max) {
    1.24 +        value = max;
    1.25 +    }
    1.26 +    return value;
    1.27 +}
    1.28 +
    1.29 +SkDeviceProfile::SkDeviceProfile(float gammaExp, float contrast,
    1.30 +                                 LCDConfig config, FontHintLevel level) {
    1.31 +    fGammaExponent = pin(gammaExp, 0, 10);
    1.32 +    fContrastScale = pin(contrast, 0, 1);
    1.33 +    fLCDConfig = config;
    1.34 +    fFontHintLevel = level;
    1.35 +}
    1.36 +
    1.37 +void SkDeviceProfile::generateTableForLuminanceByte(U8CPU lumByte,
    1.38 +                                                    uint8_t table[256]) const {
    1.39 +}
    1.40 +
    1.41 +///////////////////////////////////////////////////////////////////////////////
    1.42 +
    1.43 +SkDeviceProfile* SkDeviceProfile::Create(float gammaExp,
    1.44 +                                         float contrast,
    1.45 +                                         LCDConfig config,
    1.46 +                                         FontHintLevel level) {
    1.47 +    return SkNEW_ARGS(SkDeviceProfile, (gammaExp, contrast, config, level));
    1.48 +}
    1.49 +
    1.50 +SK_DECLARE_STATIC_MUTEX(gMutex);
    1.51 +static SkDeviceProfile* gDefaultProfile;
    1.52 +static SkDeviceProfile* gGlobalProfile;
    1.53 +
    1.54 +SkDeviceProfile* SkDeviceProfile::GetDefault() {
    1.55 +    SkAutoMutexAcquire amc(gMutex);
    1.56 +
    1.57 +    if (NULL == gDefaultProfile) {
    1.58 +        gDefaultProfile = SkDeviceProfile::Create(DEFAULT_GAMMAEXP,
    1.59 +                                                  DEFAULT_CONTRASTSCALE,
    1.60 +                                                  DEFAULT_LCDCONFIG,
    1.61 +                                                  DEFAULT_FONTHINTLEVEL);
    1.62 +    }
    1.63 +    return gDefaultProfile;
    1.64 +}
    1.65 +
    1.66 +SkDeviceProfile* SkDeviceProfile::RefGlobal() {
    1.67 +    SkAutoMutexAcquire amc(gMutex);
    1.68 +
    1.69 +    if (NULL == gGlobalProfile) {
    1.70 +        gGlobalProfile = SkDeviceProfile::GetDefault();
    1.71 +    }
    1.72 +    gGlobalProfile->ref();
    1.73 +    return gGlobalProfile;
    1.74 +}
    1.75 +
    1.76 +void SkDeviceProfile::SetGlobal(SkDeviceProfile* profile) {
    1.77 +    SkAutoMutexAcquire amc(gMutex);
    1.78 +
    1.79 +    SkRefCnt_SafeAssign(gGlobalProfile, profile);
    1.80 +}