Properties.h revision 7cd262a59cecbffbaaa52f7d03df55bfa078715d 
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#include <utils/Singleton.h>
23
24/**
25 * This file contains the list of system properties used to configure
26 * the OpenGLRenderer.
27 */
28
29namespace android {
30namespace uirenderer {
31
32///////////////////////////////////////////////////////////////////////////////
33// Compile-time properties
34///////////////////////////////////////////////////////////////////////////////
35
36// If turned on, text is interpreted as glyphs instead of UTF-16
37#define RENDER_TEXT_AS_GLYPHS 1
38
39// Indicates whether to remove the biggest layers first, or the smaller ones
40#define LAYER_REMOVE_BIGGEST_FIRST 0
41
42// Textures used by layers must have dimensions multiples of this number
43#define LAYER_SIZE 64
44
45// Defines the size in bits of the stencil buffer for the framebuffer
46// Note: Only 1 bit is required for clipping but more bits are required
47// to properly implement overdraw debugging
48#define STENCIL_BUFFER_SIZE 8
49
50///////////////////////////////////////////////////////////////////////////////
51// Debug properties
52///////////////////////////////////////////////////////////////////////////////
53
54/**
55 * Debug level for app developers. The value is a numeric value defined
56 * by the DebugLevel enum below.
57 */
58#define PROPERTY_DEBUG "debug.hwui.level"
59
60/**
61 * Debug levels. Debug levels are used as flags.
62 */
63enum DebugLevel {
64    kDebugDisabled = 0,
65    kDebugMemory = 1,
66    kDebugCaches = 2,
67    kDebugMoreCaches = kDebugMemory | kDebugCaches
68};
69
70/**
71 * Used to enable/disable layers update debugging. The accepted values are
72 * "true" and "false". The default value is "false".
73 */
74#define PROPERTY_DEBUG_LAYERS_UPDATES "debug.hwui.show_layers_updates"
75
76/**
77 * Used to enable/disable overdraw debugging.
78 *
79 * The accepted values are
80 * "show", to show overdraw
81 * "show_deuteranomaly", to show overdraw if you suffer from Deuteranomaly
82 * "count", to show an overdraw counter
83 * "false", to disable overdraw debugging
84 *
85 * The default value is "false".
86 */
87#define PROPERTY_DEBUG_OVERDRAW "debug.hwui.overdraw"
88
89/**
90 * Used to enable/disable PerfHUD ES profiling. The accepted values
91 * are "true" and "false". The default value is "false".
92 */
93#define PROPERTY_DEBUG_NV_PROFILING "debug.hwui.nv_profiling"
94
95/**
96 *  System property used to enable or disable hardware rendering profiling.
97 * The default value of this property is assumed to be false.
98 *
99 * When profiling is enabled, the adb shell dumpsys gfxinfo command will
100 * output extra information about the time taken to execute by the last
101 * frames.
102 *
103 * Possible values:
104 * "true", to enable profiling
105 * "visual_bars", to enable profiling and visualize the results on screen
106 * "false", to disable profiling
107 */
108#define PROPERTY_PROFILE "debug.hwui.profile"
109#define PROPERTY_PROFILE_VISUALIZE_BARS "visual_bars"
110
111/**
112 * Used to enable/disable non-rectangular clipping debugging.
113 *
114 * The accepted values are:
115 * "highlight", drawing commands clipped by the stencil will
116 *              be colored differently
117 * "region", renders the clipping region on screen whenever
118 *           the stencil is set
119 * "hide", don't show the clip
120 *
121 * The default value is "hide".
122 */
123#define PROPERTY_DEBUG_STENCIL_CLIP "debug.hwui.show_non_rect_clip"
124
125/**
126 * Turn on to draw dirty regions every other frame.
127 *
128 * Possible values:
129 * "true", to enable dirty regions debugging
130 * "false", to disable dirty regions debugging
131 */
132#define PROPERTY_DEBUG_SHOW_DIRTY_REGIONS "debug.hwui.show_dirty_regions"
133
134/**
135 * Disables draw operation deferral if set to "true", forcing draw
136 * commands to be issued to OpenGL in order, and processed in sequence
137 * with state-manipulation canvas commands.
138 */
139#define PROPERTY_DISABLE_DRAW_DEFER "debug.hwui.disable_draw_defer"
140
141/**
142 * Used to disable draw operation reordering when deferring draw operations
143 * Has no effect if PROPERTY_DISABLE_DRAW_DEFER is set to "true"
144 */
145#define PROPERTY_DISABLE_DRAW_REORDER "debug.hwui.disable_draw_reorder"
146
147/**
148 * Setting this property will enable or disable the dropping of frames with
149 * empty damage. Default is "true".
150 */
151#define PROPERTY_SKIP_EMPTY_DAMAGE "debug.hwui.skip_empty_damage"
152
153/**
154 * Setting this property will enable or disable usage of EGL_KHR_swap_buffers_with_damage
155 * See: https://www.khronos.org/registry/egl/extensions/KHR/EGL_KHR_swap_buffers_with_damage.txt
156 */
157#define PROPERTY_SWAP_WITH_DAMAGE "debug.hwui.swap_with_damage"
158
159///////////////////////////////////////////////////////////////////////////////
160// Runtime configuration properties
161///////////////////////////////////////////////////////////////////////////////
162
163/**
164 * Used to enable/disable scissor optimization. The accepted values are
165 * "true" and "false". The default value is "false".
166 *
167 * When scissor optimization is enabled, OpenGLRenderer will attempt to
168 * minimize the use of scissor by selectively enabling and disabling the
169 * GL scissor test.
170 * When the optimization is disabled, OpenGLRenderer will keep the GL
171 * scissor test enabled and change the scissor rect as needed.
172 * Some GPUs (for instance the SGX 540) perform better when changing
173 * the scissor rect often than when enabling/disabling the scissor test
174 * often.
175 */
176#define PROPERTY_DISABLE_SCISSOR_OPTIMIZATION "ro.hwui.disable_scissor_opt"
177
178/**
179 * Indicates whether PBOs can be used to back pixel buffers.
180 * Accepted values are "true" and "false". Default is true.
181 */
182#define PROPERTY_ENABLE_GPU_PIXEL_BUFFERS "ro.hwui.use_gpu_pixel_buffers"
183
184// These properties are defined in mega-bytes
185#define PROPERTY_TEXTURE_CACHE_SIZE "ro.hwui.texture_cache_size"
186#define PROPERTY_LAYER_CACHE_SIZE "ro.hwui.layer_cache_size"
187#define PROPERTY_RENDER_BUFFER_CACHE_SIZE "ro.hwui.r_buffer_cache_size"
188#define PROPERTY_GRADIENT_CACHE_SIZE "ro.hwui.gradient_cache_size"
189#define PROPERTY_PATH_CACHE_SIZE "ro.hwui.path_cache_size"
190#define PROPERTY_VERTEX_CACHE_SIZE "ro.hwui.vertex_cache_size"
191#define PROPERTY_PATCH_CACHE_SIZE "ro.hwui.patch_cache_size"
192#define PROPERTY_DROP_SHADOW_CACHE_SIZE "ro.hwui.drop_shadow_cache_size"
193#define PROPERTY_FBO_CACHE_SIZE "ro.hwui.fbo_cache_size"
194
195// These properties are defined in percentage (range 0..1)
196#define PROPERTY_TEXTURE_CACHE_FLUSH_RATE "ro.hwui.texture_cache_flushrate"
197
198// These properties are defined in pixels
199#define PROPERTY_TEXT_SMALL_CACHE_WIDTH "ro.hwui.text_small_cache_width"
200#define PROPERTY_TEXT_SMALL_CACHE_HEIGHT "ro.hwui.text_small_cache_height"
201#define PROPERTY_TEXT_LARGE_CACHE_WIDTH "ro.hwui.text_large_cache_width"
202#define PROPERTY_TEXT_LARGE_CACHE_HEIGHT "ro.hwui.text_large_cache_height"
203
204// Indicates whether gamma correction should be applied in the shaders
205// or in lookup tables. Accepted values:
206//
207//     - "lookup3", correction based on lookup tables. Gamma correction
208//        is different for black and white text (see thresholds below)
209//
210//     - "lookup", correction based on a single lookup table
211//
212//     - "shader3", correction applied by a GLSL shader. Gamma correction
213//        is different for black and white text (see thresholds below)
214//
215//     - "shader", correction applied by a GLSL shader
216//
217// See PROPERTY_TEXT_GAMMA, PROPERTY_TEXT_BLACK_GAMMA_THRESHOLD and
218// PROPERTY_TEXT_WHITE_GAMMA_THRESHOLD for more control.
219#define PROPERTY_TEXT_GAMMA_METHOD "hwui.text_gamma_correction"
220#define DEFAULT_TEXT_GAMMA_METHOD "lookup"
221
222// Gamma (>= 1.0, <= 10.0)
223#define PROPERTY_TEXT_GAMMA "hwui.text_gamma"
224// Luminance threshold below which black gamma correction is applied. Range: [0..255]
225#define PROPERTY_TEXT_BLACK_GAMMA_THRESHOLD "hwui.text_gamma.black_threshold"
226// Lumincance threshold above which white gamma correction is applied. Range: [0..255]
227#define PROPERTY_TEXT_WHITE_GAMMA_THRESHOLD "hwui.text_gamma.white_threshold"
228
229///////////////////////////////////////////////////////////////////////////////
230// Default property values
231///////////////////////////////////////////////////////////////////////////////
232
233#define DEFAULT_TEXTURE_CACHE_SIZE 24.0f
234#define DEFAULT_LAYER_CACHE_SIZE 16.0f
235#define DEFAULT_RENDER_BUFFER_CACHE_SIZE 2.0f
236#define DEFAULT_PATH_CACHE_SIZE 4.0f
237#define DEFAULT_VERTEX_CACHE_SIZE 1.0f
238#define DEFAULT_PATCH_CACHE_SIZE 128 // in kB
239#define DEFAULT_GRADIENT_CACHE_SIZE 0.5f
240#define DEFAULT_DROP_SHADOW_CACHE_SIZE 2.0f
241#define DEFAULT_FBO_CACHE_SIZE 0
242
243#define DEFAULT_TEXTURE_CACHE_FLUSH_RATE 0.6f
244
245#define DEFAULT_TEXT_GAMMA 1.4f
246#define DEFAULT_TEXT_BLACK_GAMMA_THRESHOLD 64
247#define DEFAULT_TEXT_WHITE_GAMMA_THRESHOLD 192
248
249///////////////////////////////////////////////////////////////////////////////
250// Misc
251///////////////////////////////////////////////////////////////////////////////
252
253// Converts a number of mega-bytes into bytes
254#define MB(s) s * 1024 * 1024
255// Converts a number of kilo-bytes into bytes
256#define KB(s) s * 1024
257
258enum class ProfileType {
259    None,
260    Console,
261    Bars
262};
263
264enum class OverdrawColorSet {
265    Default = 0,
266    Deuteranomaly
267};
268
269enum class StencilClipDebug {
270    Hide,
271    ShowHighlight,
272    ShowRegion
273};
274
275/**
276 * Renderthread-only singleton which manages several static rendering properties. Most of these
277 * are driven by system properties which are queried once at initialization, and again if init()
278 * is called.
279 */
280class Properties {
281public:
282    static bool load();
283
284    static bool drawDeferDisabled;
285    static bool drawReorderDisabled;
286    static bool debugLayersUpdates;
287    static bool debugOverdraw;
288    static bool showDirtyRegions;
289    // TODO: Remove after stabilization period
290    static bool skipEmptyFrames;
291    // TODO: Remove after stabilization period
292    static bool swapBuffersWithDamage;
293
294    static DebugLevel debugLevel;
295    static OverdrawColorSet overdrawColorSet;
296    static StencilClipDebug debugStencilClip;
297
298    // Override the value for a subset of properties in this class
299    static void overrideProperty(const char* name, const char* value);
300
301    static float overrideLightRadius;
302    static float overrideLightPosY;
303    static float overrideLightPosZ;
304    static float overrideAmbientRatio;
305    static int overrideAmbientShadowStrength;
306    static int overrideSpotShadowStrength;
307
308    static ProfileType getProfileType();
309
310private:
311    static ProfileType sProfileType;
312    static bool sDisableProfileBars;
313
314}; // class Caches
315
316}; // namespace uirenderer
317}; // namespace android
318
319#endif // ANDROID_HWUI_PROPERTIES_H
320