Properties.h revision f877308f77f7c6f3edd91618a092207dd3be9077
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 */ 53enum 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// Converts a number of mega-bytes into bytes 82#define MB(s) s * 1024 * 1024 83 84#define DEFAULT_TEXTURE_CACHE_SIZE 24.0f 85#define DEFAULT_LAYER_CACHE_SIZE 16.0f 86#define DEFAULT_PATH_CACHE_SIZE 4.0f 87#define DEFAULT_SHAPE_CACHE_SIZE 1.0f 88#define DEFAULT_PATCH_CACHE_SIZE 512 89#define DEFAULT_GRADIENT_CACHE_SIZE 0.5f 90#define DEFAULT_DROP_SHADOW_CACHE_SIZE 2.0f 91#define DEFAULT_FBO_CACHE_SIZE 16 92 93#define DEFAULT_TEXTURE_CACHE_FLUSH_RATE 0.6f 94 95#define DEFAULT_TEXT_GAMMA 1.4f 96#define DEFAULT_TEXT_BLACK_GAMMA_THRESHOLD 64 97#define DEFAULT_TEXT_WHITE_GAMMA_THRESHOLD 192 98 99static DebugLevel readDebugLevel() { 100 char property[PROPERTY_VALUE_MAX]; 101 if (property_get(PROPERTY_DEBUG, property, NULL) > 0) { 102 return (DebugLevel) atoi(property); 103 } 104 return kDebugDisabled; 105} 106 107#endif // ANDROID_HWUI_PROPERTIES_H 108