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 // Compile-time properties
30 ///////////////////////////////////////////////////////////////////////////////
31
32 // If turned on, text is interpreted as glyphs instead of UTF-16
33 #define RENDER_TEXT_AS_GLYPHS 1
34
35 // Indicates whether to remove the biggest layers first, or the smaller ones
36 #define LAYER_REMOVE_BIGGEST_FIRST 0
37
38 // Textures used by layers must have dimensions multiples of this number
39 #define LAYER_SIZE 64
40
41 // Defines the size in bits of the stencil buffer for the framebuffer
42 // Note: Only 1 bit is required for clipping but more bits are required
43 // to properly implement overdraw debugging
44 #define STENCIL_BUFFER_SIZE 8
45
46 ///////////////////////////////////////////////////////////////////////////////
47 // Debug properties
48 ///////////////////////////////////////////////////////////////////////////////
49
50 /**
51 * Debug level for app developers. The value is a numeric value defined
52 * by the DebugLevel enum below.
53 */
54 #define PROPERTY_DEBUG "debug.hwui.level"
55
56 /**
57 * Debug levels. Debug levels are used as flags.
58 */
59 enum DebugLevel {
60 kDebugDisabled = 0,
61 kDebugMemory = 1,
62 kDebugCaches = 2,
63 kDebugMoreCaches = kDebugMemory | kDebugCaches
64 };
65
66 /**
67 * Used to enable/disable layers update debugging. The accepted values are
68 * "true" and "false". The default value is "false".
69 */
70 #define PROPERTY_DEBUG_LAYERS_UPDATES "debug.hwui.show_layers_updates"
71
72 /**
73 * Used to enable/disable overdraw debugging.
74 *
75 * The accepted values are
76 * "show", to show overdraw
77 * "show_deuteranomaly", to show overdraw if you suffer from Deuteranomaly
78 * "count", to show an overdraw counter
79 * "false", to disable overdraw debugging
80 *
81 * The default value is "false".
82 */
83 #define PROPERTY_DEBUG_OVERDRAW "debug.hwui.overdraw"
84
85 /**
86 * Used to enable/disable PerfHUD ES profiling. The accepted values
87 * are "true" and "false". The default value is "false".
88 */
89 #define PROPERTY_DEBUG_NV_PROFILING "debug.hwui.nv_profiling"
90
91 /**
92 * System property used to enable or disable hardware rendering profiling.
93 * The default value of this property is assumed to be false.
94 *
95 * When profiling is enabled, the adb shell dumpsys gfxinfo command will
96 * output extra information about the time taken to execute by the last
97 * frames.
98 *
99 * Possible values:
100 * "true", to enable profiling
101 * "visual_bars", to enable profiling and visualize the results on screen
102 * "false", to disable profiling
103 */
104 #define PROPERTY_PROFILE "debug.hwui.profile"
105 #define PROPERTY_PROFILE_VISUALIZE_BARS "visual_bars"
106
107 /**
108 * System property used to specify the number of frames to be used
109 * when doing hardware rendering profiling.
110 * The default value of this property is #PROFILE_MAX_FRAMES.
111 *
112 * When profiling is enabled, the adb shell dumpsys gfxinfo command will
113 * output extra information about the time taken to execute by the last
114 * frames.
115 *
116 * Possible values:
117 * "60", to set the limit of frames to 60
118 */
119 #define PROPERTY_PROFILE_MAXFRAMES "debug.hwui.profile.maxframes"
120
121 /**
122 * Used to enable/disable non-rectangular clipping debugging.
123 *
124 * The accepted values are:
125 * "highlight", drawing commands clipped by the stencil will
126 * be colored differently
127 * "region", renders the clipping region on screen whenever
128 * the stencil is set
129 * "hide", don't show the clip
130 *
131 * The default value is "hide".
132 */
133 #define PROPERTY_DEBUG_STENCIL_CLIP "debug.hwui.show_non_rect_clip"
134
135 /**
136 * Disables draw operation deferral if set to "true", forcing draw
137 * commands to be issued to OpenGL in order, and processed in sequence
138 * with state-manipulation canvas commands.
139 */
140 #define PROPERTY_DISABLE_DRAW_DEFER "debug.hwui.disable_draw_defer"
141
142 /**
143 * Used to disable draw operation reordering when deferring draw operations
144 * Has no effect if PROPERTY_DISABLE_DRAW_DEFER is set to "true"
145 */
146 #define PROPERTY_DISABLE_DRAW_REORDER "debug.hwui.disable_draw_reorder"
147
148 ///////////////////////////////////////////////////////////////////////////////
149 // Runtime configuration properties
150 ///////////////////////////////////////////////////////////////////////////////
151
152 /**
153 * Used to enable/disable scissor optimization. The accepted values are
154 * "true" and "false". The default value is "false".
155 *
156 * When scissor optimization is enabled, OpenGLRenderer will attempt to
157 * minimize the use of scissor by selectively enabling and disabling the
158 * GL scissor test.
159 * When the optimization is disabled, OpenGLRenderer will keep the GL
160 * scissor test enabled and change the scissor rect as needed.
161 * Some GPUs (for instance the SGX 540) perform better when changing
162 * the scissor rect often than when enabling/disabling the scissor test
163 * often.
164 */
165 #define PROPERTY_DISABLE_SCISSOR_OPTIMIZATION "ro.hwui.disable_scissor_opt"
166
167 /**
168 * Indicates whether PBOs can be used to back pixel buffers.
169 * Accepted values are "true" and "false". Default is true.
170 */
171 #define PROPERTY_ENABLE_GPU_PIXEL_BUFFERS "ro.hwui.use_gpu_pixel_buffers"
172
173 // These properties are defined in mega-bytes
174 #define PROPERTY_TEXTURE_CACHE_SIZE "ro.hwui.texture_cache_size"
175 #define PROPERTY_LAYER_CACHE_SIZE "ro.hwui.layer_cache_size"
176 #define PROPERTY_RENDER_BUFFER_CACHE_SIZE "ro.hwui.r_buffer_cache_size"
177 #define PROPERTY_GRADIENT_CACHE_SIZE "ro.hwui.gradient_cache_size"
178 #define PROPERTY_PATH_CACHE_SIZE "ro.hwui.path_cache_size"
179 #define PROPERTY_VERTEX_CACHE_SIZE "ro.hwui.vertex_cache_size"
180 #define PROPERTY_PATCH_CACHE_SIZE "ro.hwui.patch_cache_size"
181 #define PROPERTY_DROP_SHADOW_CACHE_SIZE "ro.hwui.drop_shadow_cache_size"
182 #define PROPERTY_FBO_CACHE_SIZE "ro.hwui.fbo_cache_size"
183
184 // These properties are defined in percentage (range 0..1)
185 #define PROPERTY_TEXTURE_CACHE_FLUSH_RATE "ro.hwui.texture_cache_flushrate"
186
187 // These properties are defined in pixels
188 #define PROPERTY_TEXT_SMALL_CACHE_WIDTH "ro.hwui.text_small_cache_width"
189 #define PROPERTY_TEXT_SMALL_CACHE_HEIGHT "ro.hwui.text_small_cache_height"
190 #define PROPERTY_TEXT_LARGE_CACHE_WIDTH "ro.hwui.text_large_cache_width"
191 #define PROPERTY_TEXT_LARGE_CACHE_HEIGHT "ro.hwui.text_large_cache_height"
192
193 // Indicates whether gamma correction should be applied in the shaders
194 // or in lookup tables. Accepted values:
195 //
196 // - "lookup3", correction based on lookup tables. Gamma correction
197 // is different for black and white text (see thresholds below)
198 //
199 // - "lookup", correction based on a single lookup table
200 //
201 // - "shader3", correction applied by a GLSL shader. Gamma correction
202 // is different for black and white text (see thresholds below)
203 //
204 // - "shader", correction applied by a GLSL shader
205 //
206 // See PROPERTY_TEXT_GAMMA, PROPERTY_TEXT_BLACK_GAMMA_THRESHOLD and
207 // PROPERTY_TEXT_WHITE_GAMMA_THRESHOLD for more control.
208 #define PROPERTY_TEXT_GAMMA_METHOD "hwui.text_gamma_correction"
209 #define DEFAULT_TEXT_GAMMA_METHOD "lookup"
210
211 // Gamma (>= 1.0, <= 10.0)
212 #define PROPERTY_TEXT_GAMMA "hwui.text_gamma"
213 // Luminance threshold below which black gamma correction is applied. Range: [0..255]
214 #define PROPERTY_TEXT_BLACK_GAMMA_THRESHOLD "hwui.text_gamma.black_threshold"
215 // Lumincance threshold above which white gamma correction is applied. Range: [0..255]
216 #define PROPERTY_TEXT_WHITE_GAMMA_THRESHOLD "hwui.text_gamma.white_threshold"
217
218 ///////////////////////////////////////////////////////////////////////////////
219 // Default property values
220 ///////////////////////////////////////////////////////////////////////////////
221
222 #define DEFAULT_TEXTURE_CACHE_SIZE 24.0f
223 #define DEFAULT_LAYER_CACHE_SIZE 16.0f
224 #define DEFAULT_RENDER_BUFFER_CACHE_SIZE 2.0f
225 #define DEFAULT_PATH_CACHE_SIZE 10.0f
226 #define DEFAULT_VERTEX_CACHE_SIZE 1.0f
227 #define DEFAULT_PATCH_CACHE_SIZE 128 // in kB
228 #define DEFAULT_GRADIENT_CACHE_SIZE 0.5f
229 #define DEFAULT_DROP_SHADOW_CACHE_SIZE 2.0f
230 #define DEFAULT_FBO_CACHE_SIZE 0
231
232 #define DEFAULT_TEXTURE_CACHE_FLUSH_RATE 0.6f
233
234 #define DEFAULT_TEXT_GAMMA 1.4f
235 #define DEFAULT_TEXT_BLACK_GAMMA_THRESHOLD 64
236 #define DEFAULT_TEXT_WHITE_GAMMA_THRESHOLD 192
237
238 ///////////////////////////////////////////////////////////////////////////////
239 // Misc
240 ///////////////////////////////////////////////////////////////////////////////
241
242 // Converts a number of mega-bytes into bytes
243 #define MB(s) s * 1024 * 1024
244 // Converts a number of kilo-bytes into bytes
245 #define KB(s) s * 1024
246
readDebugLevel()247 static DebugLevel readDebugLevel() {
248 char property[PROPERTY_VALUE_MAX];
249 if (property_get(PROPERTY_DEBUG, property, NULL) > 0) {
250 return (DebugLevel) atoi(property);
251 }
252 return kDebugDisabled;
253 }
254
255 #endif // ANDROID_HWUI_PROPERTIES_H
256