Properties.h revision e190aa69756aecfaffabdd4c6d32cb6b3220d842 
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/**
29 * Debug level for app developers.
30 */
31#define PROPERTY_DEBUG "hwui.debug_level"
32
33/**
34 * Debug levels. Debug levels are used as flags.
35 */
36enum DebugLevel {
37    kDebugDisabled = 0,
38    kDebugMemory = 1,
39    kDebugCaches = 2
40};
41
42// These properties are defined in mega-bytes
43#define PROPERTY_TEXTURE_CACHE_SIZE "ro.hwui.texture_cache_size"
44#define PROPERTY_LAYER_CACHE_SIZE "ro.hwui.layer_cache_size"
45#define PROPERTY_GRADIENT_CACHE_SIZE "ro.hwui.gradient_cache_size"
46#define PROPERTY_PATH_CACHE_SIZE "ro.hwui.path_cache_size"
47#define PROPERTY_DROP_SHADOW_CACHE_SIZE "ro.hwui.drop_shadow_cache_size"
48#define PROPERTY_FBO_CACHE_SIZE "ro.hwui.fbo_cache_size"
49
50// These properties are defined in pixels
51#define PROPERTY_TEXT_CACHE_WIDTH "ro.hwui.text_cache_width"
52#define PROPERTY_TEXT_CACHE_HEIGHT "ro.hwui.text_cache_height"
53
54// Gamma (>= 1.0, <= 10.0)
55#define PROPERTY_TEXT_GAMMA "ro.text_gamma"
56#define PROPERTY_TEXT_BLACK_GAMMA_THRESHOLD "ro.text_gamma.black_threshold"
57#define PROPERTY_TEXT_WHITE_GAMMA_THRESHOLD "ro.text_gamma.white_threshold"
58
59// Converts a number of mega-bytes into bytes
60#define MB(s) s * 1024 * 1024
61
62#define DEFAULT_TEXTURE_CACHE_SIZE 20.0f
63#define DEFAULT_LAYER_CACHE_SIZE 8.0f
64#define DEFAULT_PATH_CACHE_SIZE 4.0f
65#define DEFAULT_PATCH_CACHE_SIZE 512
66#define DEFAULT_GRADIENT_CACHE_SIZE 0.5f
67#define DEFAULT_DROP_SHADOW_CACHE_SIZE 2.0f
68#define DEFAULT_FBO_CACHE_SIZE 12
69
70#define DEFAULT_TEXT_GAMMA 1.4f
71#define DEFAULT_TEXT_BLACK_GAMMA_THRESHOLD 64
72#define DEFAULT_TEXT_WHITE_GAMMA_THRESHOLD 192
73
74static DebugLevel readDebugLevel() {
75    char property[PROPERTY_VALUE_MAX];
76    if (property_get(PROPERTY_DEBUG, property, NULL) > 0) {
77        return (DebugLevel) atoi(property);
78    }
79    return kDebugDisabled;
80}
81
82#endif // ANDROID_HWUI_PROPERTIES_H
83