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 1
30
31 // If turned on, text is interpreted as glyphs instead of UTF-16
32 #define RENDER_TEXT_AS_GLYPHS 1
33
34 // Indicates whether to remove the biggest layers first, or the smaller ones
35 #define LAYER_REMOVE_BIGGEST_FIRST 0
36
37 // Textures used by layers must have dimensions multiples of this number
38 #define LAYER_SIZE 64
39
40 // Defines the size in bits of the stencil buffer
41 // Note: Only 1 bit is required for clipping but more bits are required
42 // to properly implement the winding fill rule when rasterizing paths
43 #define STENCIL_BUFFER_SIZE 0
44
45 /**
46 * Debug level for app developers.
47 */
48 #define PROPERTY_DEBUG "hwui.debug_level"
49
50 /**
51 * Debug levels. Debug levels are used as flags.
52 */
53 enum DebugLevel {
54 kDebugDisabled = 0,
55 kDebugMemory = 1,
56 kDebugCaches = 2,
57 kDebugMoreCaches = kDebugMemory | kDebugCaches
58 };
59
60 // These properties are defined in mega-bytes
61 #define PROPERTY_TEXTURE_CACHE_SIZE "ro.hwui.texture_cache_size"
62 #define PROPERTY_LAYER_CACHE_SIZE "ro.hwui.layer_cache_size"
63 #define PROPERTY_GRADIENT_CACHE_SIZE "ro.hwui.gradient_cache_size"
64 #define PROPERTY_PATH_CACHE_SIZE "ro.hwui.path_cache_size"
65 #define PROPERTY_SHAPE_CACHE_SIZE "ro.hwui.shape_cache_size"
66 #define PROPERTY_DROP_SHADOW_CACHE_SIZE "ro.hwui.drop_shadow_cache_size"
67 #define PROPERTY_FBO_CACHE_SIZE "ro.hwui.fbo_cache_size"
68
69 // These properties are defined in percentage (range 0..1)
70 #define PROPERTY_TEXTURE_CACHE_FLUSH_RATE "ro.hwui.texture_cache_flush_rate"
71
72 // These properties are defined in pixels
73 #define PROPERTY_TEXT_CACHE_WIDTH "ro.hwui.text_cache_width"
74 #define PROPERTY_TEXT_CACHE_HEIGHT "ro.hwui.text_cache_height"
75
76 // Gamma (>= 1.0, <= 10.0)
77 #define PROPERTY_TEXT_GAMMA "ro.text_gamma"
78 #define PROPERTY_TEXT_BLACK_GAMMA_THRESHOLD "ro.text_gamma.black_threshold"
79 #define PROPERTY_TEXT_WHITE_GAMMA_THRESHOLD "ro.text_gamma.white_threshold"
80
81 // TODO: This should be set by a system property
82 #define PANEL_BIT_DEPTH 20
83
84 // Converts a number of mega-bytes into bytes
85 #define MB(s) s * 1024 * 1024
86
87 #define DEFAULT_TEXTURE_CACHE_SIZE 24.0f
88 #define DEFAULT_LAYER_CACHE_SIZE 16.0f
89 #define DEFAULT_PATH_CACHE_SIZE 4.0f
90 #define DEFAULT_SHAPE_CACHE_SIZE 1.0f
91 #define DEFAULT_PATCH_CACHE_SIZE 512
92 #define DEFAULT_GRADIENT_CACHE_SIZE 0.5f
93 #define DEFAULT_DROP_SHADOW_CACHE_SIZE 2.0f
94 #define DEFAULT_FBO_CACHE_SIZE 16
95
96 #define DEFAULT_TEXTURE_CACHE_FLUSH_RATE 0.6f
97
98 #define DEFAULT_TEXT_GAMMA 1.4f
99 #define DEFAULT_TEXT_BLACK_GAMMA_THRESHOLD 64
100 #define DEFAULT_TEXT_WHITE_GAMMA_THRESHOLD 192
101
readDebugLevel()102 static DebugLevel readDebugLevel() {
103 char property[PROPERTY_VALUE_MAX];
104 if (property_get(PROPERTY_DEBUG, property, NULL) > 0) {
105 return (DebugLevel) atoi(property);
106 }
107 return kDebugDisabled;
108 }
109
110 #endif // ANDROID_HWUI_PROPERTIES_H
111