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gecko/gfx/thebes/gfxPrefs.h

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* 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 GFX_PREFS_H
#define GFX_PREFS_H
#include <stdint.h>
#include "mozilla/Assertions.h"
#include "mozilla/TypedEnum.h"
// First time gfxPrefs::GetSingleton() needs to be called on the main thread,
// before any of the methods accessing the values are used, but after
// the Preferences system has been initialized.
// The static methods to access the preference value are safe to call
// from any thread after that first call.
// To register a preference, you need to add a line in this file using
// the DECL_GFX_PREF macro.
//
// Update argument controls whether we read the preference value and save it
// or connect with a callback. See UpdatePolicy enum below.
// Pref is the string with the preference name.
// Name argument is the name of the static function to create.
// Type is the type of the preference - bool, int32_t, uint32_t.
// Default is the default value for the preference.
//
// For example this line in the .h:
// DECL_GFX_PREF(Once,"layers.dump",LayersDump,bool,false);
// means that you can call
// bool var = gfxPrefs::LayersDump();
// from any thread, but that you will only get the preference value of
// "layers.dump" as it was set at the start of the session. If the value
// was not set, the default would be false.
//
// In another example, this line in the .h:
// DECL_GFX_PREF(Live,"gl.msaa-level",MSAALevel,uint32_t,2);
// means that every time you call
// uint32_t var = gfxPrefs::MSAALevel();
// from any thread, you will get the most up to date preference value of
// "gl.msaa-level". If the value is not set, the default would be 2.
// Note that changing a preference from Live to Once is now as simple
// as changing the Update argument. If your code worked before, it will
// keep working, and behave as if the user never changes the preference.
// Things are a bit more complicated and perhaps even dangerous when
// going from Once to Live, or indeed setting a preference to be Live
// in the first place, so be careful. You need to be ready for the
// values changing mid execution, and if you're using those preferences
// in any setup and initialization, you may need to do extra work.
#define DECL_GFX_PREF(Update, Pref, Name, Type, Default) \
public: \
static Type Name() { MOZ_ASSERT(SingletonExists()); return GetSingleton().mPref##Name.mValue; } \
private: \
static const char* Get##Name##PrefName() { return Pref; } \
static Type Get##Name##PrefDefault() { return Default; } \
PrefTemplate<UpdatePolicy::Update, Type, Get##Name##PrefDefault, Get##Name##PrefName> mPref##Name
class gfxPrefs;
class gfxPrefs MOZ_FINAL
{
private:
// Enums for the update policy.
MOZ_BEGIN_NESTED_ENUM_CLASS(UpdatePolicy)
Skip, // Set the value to default, skip any Preferences calls
Once, // Evaluate the preference once, unchanged during the session
Live // Evaluate the preference and set callback so it stays current/live
MOZ_END_NESTED_ENUM_CLASS(UpdatePolicy)
// Since we cannot use const char*, use a function that returns it.
template <MOZ_ENUM_CLASS_ENUM_TYPE(UpdatePolicy) Update, class T, T Default(void), const char* Pref(void)>
class PrefTemplate
{
public:
PrefTemplate()
: mValue(Default())
{
Register(Update, Pref());
}
void Register(UpdatePolicy aUpdate, const char* aPreference)
{
switch(aUpdate) {
case UpdatePolicy::Skip:
break;
case UpdatePolicy::Once:
mValue = PrefGet(aPreference, mValue);
break;
case UpdatePolicy::Live:
PrefAddVarCache(&mValue,aPreference, mValue);
break;
default:
MOZ_CRASH();
break;
}
}
T mValue;
};
// This is where DECL_GFX_PREF for each of the preferences should go.
// We will keep these in an alphabetical order to make it easier to see if
// a method accessing a pref already exists. Just add yours in the list.
// The apz prefs are explained in AsyncPanZoomController.cpp
DECL_GFX_PREF(Live, "apz.allow-checkerboarding", APZAllowCheckerboarding, bool, true);
DECL_GFX_PREF(Live, "apz.asyncscroll.throttle", APZAsyncScrollThrottleTime, int32_t, 100);
DECL_GFX_PREF(Live, "apz.asyncscroll.timeout", APZAsyncScrollTimeout, int32_t, 300);
DECL_GFX_PREF(Live, "apz.axis_lock_mode", APZAxisLockMode, int32_t, 0);
DECL_GFX_PREF(Live, "apz.content_response_timeout", APZContentResponseTimeout, int32_t, 300);
DECL_GFX_PREF(Live, "apz.cross_slide.enabled", APZCrossSlideEnabled, bool, false);
DECL_GFX_PREF(Live, "apz.enlarge_displayport_when_clipped", APZEnlargeDisplayPortWhenClipped, bool, false);
DECL_GFX_PREF(Live, "apz.fling_accel_interval_ms", APZFlingAccelInterval, int32_t, 500);
DECL_GFX_PREF(Live, "apz.fling_accel_base_mult", APZFlingAccelBaseMultiplier, float, 1.0f);
DECL_GFX_PREF(Live, "apz.fling_accel_supplemental_mult", APZFlingAccelSupplementalMultiplier, float, 1.0f);
DECL_GFX_PREF(Once, "apz.fling_friction", APZFlingFriction, float, 0.002f);
DECL_GFX_PREF(Live, "apz.fling_repaint_interval", APZFlingRepaintInterval, int32_t, 75);
DECL_GFX_PREF(Once, "apz.fling_stopped_threshold", APZFlingStoppedThreshold, float, 0.01f);
DECL_GFX_PREF(Once, "apz.max_velocity_inches_per_ms", APZMaxVelocity, float, -1.0f);
DECL_GFX_PREF(Once, "apz.max_velocity_queue_size", APZMaxVelocityQueueSize, uint32_t, 5);
DECL_GFX_PREF(Live, "apz.min_skate_speed", APZMinSkateSpeed, float, 1.0f);
DECL_GFX_PREF(Live, "apz.num_paint_duration_samples", APZNumPaintDurationSamples, int32_t, 3);
DECL_GFX_PREF(Live, "apz.overscroll.enabled", APZOverscrollEnabled, bool, false);
DECL_GFX_PREF(Live, "apz.overscroll.fling_friction", APZOverscrollFlingFriction, float, 0.02f);
DECL_GFX_PREF(Live, "apz.overscroll.fling_stopped_threshold", APZOverscrollFlingStoppedThreshold, float, 0.4f);
DECL_GFX_PREF(Live, "apz.overscroll.clamping", APZOverscrollClamping, float, 0.5f);
DECL_GFX_PREF(Live, "apz.overscroll.z_effect", APZOverscrollZEffect, float, 0.2f);
DECL_GFX_PREF(Live, "apz.overscroll.snap_back.spring_stiffness", APZOverscrollSnapBackSpringStiffness, float, 0.6f);
DECL_GFX_PREF(Live, "apz.overscroll.snap_back.spring_friction", APZOverscrollSnapBackSpringFriction, float, 0.1f);
DECL_GFX_PREF(Live, "apz.overscroll.snap_back.mass", APZOverscrollSnapBackMass, float, 1000.0f);
DECL_GFX_PREF(Live, "apz.pan_repaint_interval", APZPanRepaintInterval, int32_t, 250);
DECL_GFX_PREF(Live, "apz.subframe.enabled", APZSubframeEnabled, bool, false);
DECL_GFX_PREF(Once, "apz.test.logging_enabled", APZTestLoggingEnabled, bool, false);
DECL_GFX_PREF(Live, "apz.touch_start_tolerance", APZTouchStartTolerance, float, 1.0f/4.5f);
DECL_GFX_PREF(Live, "apz.use_paint_duration", APZUsePaintDuration, bool, true);
DECL_GFX_PREF(Live, "apz.velocity_bias", APZVelocityBias, float, 1.0f);
DECL_GFX_PREF(Live, "apz.velocity_relevance_time_ms", APZVelocityRelevanceTime, uint32_t, 150);
DECL_GFX_PREF(Live, "apz.x_skate_size_multiplier", APZXSkateSizeMultiplier, float, 1.5f);
DECL_GFX_PREF(Live, "apz.x_stationary_size_multiplier", APZXStationarySizeMultiplier, float, 3.0f);
DECL_GFX_PREF(Live, "apz.y_skate_size_multiplier", APZYSkateSizeMultiplier, float, 2.5f);
DECL_GFX_PREF(Live, "apz.y_stationary_size_multiplier", APZYStationarySizeMultiplier, float, 3.5f);
DECL_GFX_PREF(Live, "apz.zoom_animation_duration_ms", APZZoomAnimationDuration, int32_t, 250);
DECL_GFX_PREF(Once, "gfx.android.rgb16.force", AndroidRGB16Force, bool, false);
#if defined(ANDROID)
DECL_GFX_PREF(Once, "gfx.apitrace.enabled", UseApitrace, bool, false);
#endif
DECL_GFX_PREF(Live, "gfx.canvas.azure.accelerated", CanvasAzureAccelerated, bool, false);
DECL_GFX_PREF(Once, "gfx.canvas.skiagl.dynamic-cache", CanvasSkiaGLDynamicCache, bool, false);
DECL_GFX_PREF(Once, "gfx.canvas.skiagl.cache-size", CanvasSkiaGLCacheSize, int32_t, 96);
DECL_GFX_PREF(Once, "gfx.canvas.skiagl.cache-items", CanvasSkiaGLCacheItems, int32_t, 256);
DECL_GFX_PREF(Live, "gfx.color_management.enablev4", CMSEnableV4, bool, false);
DECL_GFX_PREF(Live, "gfx.color_management.mode", CMSMode, int32_t,-1);
// The zero default here should match QCMS_INTENT_DEFAULT from qcms.h
DECL_GFX_PREF(Live, "gfx.color_management.rendering_intent", CMSRenderingIntent, int32_t, 0);
DECL_GFX_PREF(Once, "gfx.direct2d.disabled", Direct2DDisabled, bool, false);
DECL_GFX_PREF(Once, "gfx.direct2d.force-enabled", Direct2DForceEnabled, bool, false);
DECL_GFX_PREF(Live, "gfx.gralloc.fence-with-readpixels", GrallocFenceWithReadPixels, bool, false);
DECL_GFX_PREF(Live, "gfx.layerscope.enabled", LayerScopeEnabled, bool, false);
DECL_GFX_PREF(Live, "gfx.layerscope.port", LayerScopePort, int32_t, 23456);
DECL_GFX_PREF(Once, "gfx.work-around-driver-bugs", WorkAroundDriverBugs, bool, true);
DECL_GFX_PREF(Live, "gfx.draw-color-bars", CompositorDrawColorBars, bool, false);
DECL_GFX_PREF(Live, "gl.msaa-level", MSAALevel, uint32_t, 2);
DECL_GFX_PREF(Once, "layers.acceleration.disabled", LayersAccelerationDisabled, bool, false);
DECL_GFX_PREF(Live, "layers.acceleration.draw-fps", LayersDrawFPS, bool, false);
DECL_GFX_PREF(Live, "layers.acceleration.draw-fps.print-histogram", FPSPrintHistogram, bool, false);
DECL_GFX_PREF(Live, "layers.acceleration.draw-fps.write-to-file", WriteFPSToFile, bool, false);
DECL_GFX_PREF(Once, "layers.acceleration.force-enabled", LayersAccelerationForceEnabled, bool, false);
DECL_GFX_PREF(Once, "layers.async-video.enabled", AsyncVideoEnabled, bool, true);
DECL_GFX_PREF(Once, "layers.async-video-oop.enabled", AsyncVideoOOPEnabled, bool, true);
DECL_GFX_PREF(Once, "layers.async-pan-zoom.enabled", AsyncPanZoomEnabled, bool, false);
DECL_GFX_PREF(Live, "layers.bench.enabled", LayersBenchEnabled, bool, false);
DECL_GFX_PREF(Once, "layers.bufferrotation.enabled", BufferRotationEnabled, bool, true);
#ifdef MOZ_GFX_OPTIMIZE_MOBILE
// If MOZ_GFX_OPTIMIZE_MOBILE is defined, we force component alpha off
// and ignore the preference.
DECL_GFX_PREF(Skip, "layers.componentalpha.enabled", ComponentAlphaEnabled, bool, false);
#else
// If MOZ_GFX_OPTIMIZE_MOBILE is not defined, we actually take the
// preference value, defaulting to true.
DECL_GFX_PREF(Once, "layers.componentalpha.enabled", ComponentAlphaEnabled, bool, true);
#endif
DECL_GFX_PREF(Live, "layers.draw-bigimage-borders", DrawBigImageBorders, bool, false);
DECL_GFX_PREF(Live, "layers.draw-borders", DrawLayerBorders, bool, false);
DECL_GFX_PREF(Live, "layers.draw-tile-borders", DrawTileBorders, bool, false);
DECL_GFX_PREF(Live, "layers.flash-borders", FlashLayerBorders, bool, false);
DECL_GFX_PREF(Live, "layers.draw-layer-info", DrawLayerInfo, bool, false);
DECL_GFX_PREF(Once, "layers.dump", LayersDump, bool, false);
DECL_GFX_PREF(Once, "layers.enable-tiles", LayersTilesEnabled, bool, false);
DECL_GFX_PREF(Once, "layers.simple-tiles", LayersUseSimpleTiles, bool, false);
DECL_GFX_PREF(Once, "layers.force-per-tile-drawing", PerTileDrawing, bool, false);
// We allow for configurable and rectangular tile size to avoid wasting memory on devices whose
// screen size does not align nicely to the default tile size. Although layers can be any size,
// they are often the same size as the screen, especially for width.
DECL_GFX_PREF(Once, "layers.tile-width", LayersTileWidth, int32_t, 256);
DECL_GFX_PREF(Once, "layers.tile-height", LayersTileHeight, int32_t, 256);
DECL_GFX_PREF(Once, "layers.overzealous-gralloc-unlocking", OverzealousGrallocUnlocking, bool, false);
DECL_GFX_PREF(Once, "layers.force-shmem-tiles", ForceShmemTiles, bool, false);
DECL_GFX_PREF(Live, "layers.frame-counter", DrawFrameCounter, bool, false);
DECL_GFX_PREF(Live, "layers.low-precision-buffer", UseLowPrecisionBuffer, bool, false);
DECL_GFX_PREF(Live, "layers.low-precision-resolution", LowPrecisionResolution, float, 0.25f);
DECL_GFX_PREF(Once, "layers.offmainthreadcomposition.enabled", LayersOffMainThreadCompositionEnabled, bool, false);
DECL_GFX_PREF(Live, "layers.offmainthreadcomposition.frame-rate", LayersCompositionFrameRate, int32_t,-1);
DECL_GFX_PREF(Once, "layers.offmainthreadcomposition.force-enabled", LayersOffMainThreadCompositionForceEnabled, bool, false);
DECL_GFX_PREF(Once, "layers.offmainthreadcomposition.testing.enabled", LayersOffMainThreadCompositionTestingEnabled, bool, false);
DECL_GFX_PREF(Live, "layers.orientation.sync.timeout", OrientationSyncMillis, uint32_t, (uint32_t)0);
DECL_GFX_PREF(Once, "layers.prefer-d3d9", LayersPreferD3D9, bool, false);
DECL_GFX_PREF(Once, "layers.prefer-opengl", LayersPreferOpenGL, bool, false);
DECL_GFX_PREF(Once, "layers.progressive-paint", UseProgressiveTilePainting, bool, false);
DECL_GFX_PREF(Once, "layers.scroll-graph", LayersScrollGraph, bool, false);
DECL_GFX_PREF(Once, "layout.css.touch_action.enabled", TouchActionEnabled, bool, false);
DECL_GFX_PREF(Once, "layout.frame_rate", LayoutFrameRate, int32_t, -1);
DECL_GFX_PREF(Live, "layout.display-list.dump", LayoutDumpDisplayList, bool, false);
DECL_GFX_PREF(Once, "layout.paint_rects_separately", LayoutPaintRectsSeparately, bool, true);
DECL_GFX_PREF(Live, "nglayout.debug.widget_update_flashing", WidgetUpdateFlashing, bool, false);
DECL_GFX_PREF(Live, "ui.click_hold_context_menus.delay", UiClickHoldContextMenusDelay, int32_t, 500);
DECL_GFX_PREF(Once, "webgl.force-layers-readback", WebGLForceLayersReadback, bool, false);
public:
// Manage the singleton:
static gfxPrefs& GetSingleton()
{
if (!sInstance) {
sInstance = new gfxPrefs;
}
return *sInstance;
}
static void DestroySingleton();
static bool SingletonExists();
private:
static gfxPrefs* sInstance;
private:
// Creating these to avoid having to include Preferences.h in the .h
static void PrefAddVarCache(bool*, const char*, bool);
static void PrefAddVarCache(int32_t*, const char*, int32_t);
static void PrefAddVarCache(uint32_t*, const char*, uint32_t);
static void PrefAddVarCache(float*, const char*, float);
static bool PrefGet(const char*, bool);
static int32_t PrefGet(const char*, int32_t);
static uint32_t PrefGet(const char*, uint32_t);
static float PrefGet(const char*, float);
gfxPrefs();
~gfxPrefs();
gfxPrefs(const gfxPrefs&) MOZ_DELETE;
gfxPrefs& operator=(const gfxPrefs&) MOZ_DELETE;
};
#undef DECL_GFX_PREF /* Don't need it outside of this file */
#endif /* GFX_PREFS_H */
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