Properties.h revision 35f24545e56caaff067f7dcd550ad4073efcface 
1/*
2 * Copyright (C) 2010 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef ANDROID_HWUI_PROPERTIES_H
18#define ANDROID_HWUI_PROPERTIES_H
19
20#include <cutils/properties.h>
21#include <stdlib.h>
22
23/**
24 * This file contains the list of system properties used to configure
25 * the OpenGLRenderer.
26 */
27
28// If turned on, layers drawn inside FBOs are optimized with regions
29#define RENDER_LAYERS_AS_REGIONS 0
30
31/**
32 * Debug level for app developers.
33 */
34#define PROPERTY_DEBUG "hwui.debug_level"
35
36/**
37 * Debug levels. Debug levels are used as flags.
38 */
39enum DebugLevel {
40    kDebugDisabled = 0,
41    kDebugMemory = 1,
42    kDebugCaches = 2,
43    kDebugMoreCaches = 3
44};
45
46// These properties are defined in mega-bytes
47#define PROPERTY_TEXTURE_CACHE_SIZE "ro.hwui.texture_cache_size"
48#define PROPERTY_LAYER_CACHE_SIZE "ro.hwui.layer_cache_size"
49#define PROPERTY_GRADIENT_CACHE_SIZE "ro.hwui.gradient_cache_size"
50#define PROPERTY_PATH_CACHE_SIZE "ro.hwui.path_cache_size"
51#define PROPERTY_DROP_SHADOW_CACHE_SIZE "ro.hwui.drop_shadow_cache_size"
52#define PROPERTY_FBO_CACHE_SIZE "ro.hwui.fbo_cache_size"
53
54// These properties are defined in pixels
55#define PROPERTY_TEXT_CACHE_WIDTH "ro.hwui.text_cache_width"
56#define PROPERTY_TEXT_CACHE_HEIGHT "ro.hwui.text_cache_height"
57
58// Gamma (>= 1.0, <= 10.0)
59#define PROPERTY_TEXT_GAMMA "ro.text_gamma"
60#define PROPERTY_TEXT_BLACK_GAMMA_THRESHOLD "ro.text_gamma.black_threshold"
61#define PROPERTY_TEXT_WHITE_GAMMA_THRESHOLD "ro.text_gamma.white_threshold"
62
63// Converts a number of mega-bytes into bytes
64#define MB(s) s * 1024 * 1024
65
66#define DEFAULT_TEXTURE_CACHE_SIZE 20.0f
67#define DEFAULT_LAYER_CACHE_SIZE 8.0f
68#define DEFAULT_PATH_CACHE_SIZE 4.0f
69#define DEFAULT_PATCH_CACHE_SIZE 512
70#define DEFAULT_GRADIENT_CACHE_SIZE 0.5f
71#define DEFAULT_DROP_SHADOW_CACHE_SIZE 2.0f
72#define DEFAULT_FBO_CACHE_SIZE 12
73
74#define DEFAULT_TEXT_GAMMA 1.4f
75#define DEFAULT_TEXT_BLACK_GAMMA_THRESHOLD 64
76#define DEFAULT_TEXT_WHITE_GAMMA_THRESHOLD 192
77
78static DebugLevel readDebugLevel() {
79    char property[PROPERTY_VALUE_MAX];
80    if (property_get(PROPERTY_DEBUG, property, NULL) > 0) {
81        return (DebugLevel) atoi(property);
82    }
83    return kDebugDisabled;
84}
85
86#endif // ANDROID_HWUI_PROPERTIES_H
87