1 /* 2 * Copyright (C) 2011 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 #include "EglConfig.h" 17 18 EglConfig::EglConfig(EGLint red_size, 19 EGLint green_size, 20 EGLint blue_size, 21 EGLint alpha_size, 22 EGLenum caveat, 23 EGLint config_id, 24 EGLint depth_size, 25 EGLint frame_buffer_level, 26 EGLint max_pbuffer_width, 27 EGLint max_pbuffer_height, 28 EGLint max_pbuffer_size, 29 EGLBoolean native_renderable, 30 EGLint renderable_type, 31 EGLint native_visual_id, 32 EGLint native_visual_type, 33 EGLint samples_per_pixel, 34 EGLint stencil_size, 35 EGLint surface_type, 36 EGLenum transparent_type, 37 EGLint trans_red_val, 38 EGLint trans_green_val, 39 EGLint trans_blue_val, 40 EGLNativePixelFormatType frmt): 41 42 m_buffer_size(red_size + green_size + blue_size + alpha_size), 43 m_red_size(red_size), 44 m_green_size(green_size), 45 m_blue_size(blue_size), 46 m_alpha_size(alpha_size), 47 m_bind_to_tex_rgb(EGL_FALSE), //not supported for now 48 m_bind_to_tex_rgba(EGL_FALSE), //not supported for now 49 m_caveat(caveat), 50 m_config_id(config_id), 51 m_native_config_id(config_id), 52 m_frame_buffer_level(frame_buffer_level), 53 m_depth_size(depth_size), 54 m_max_pbuffer_width(max_pbuffer_width), 55 m_max_pbuffer_height(max_pbuffer_height), 56 m_max_pbuffer_size(max_pbuffer_size), 57 m_max_swap_interval(MAX_SWAP_INTERVAL), 58 m_min_swap_interval(MIN_SWAP_INTERVAL), 59 m_native_renderable(native_renderable), 60 m_renderable_type(renderable_type), 61 m_native_visual_id(native_visual_id), 62 m_native_visual_type(native_visual_type), 63 m_sample_buffers_num(samples_per_pixel > 0 ?1:0), 64 m_samples_per_pixel(samples_per_pixel), 65 m_stencil_size(stencil_size), 66 m_surface_type(surface_type), 67 m_transparent_type(transparent_type), 68 m_trans_red_val(trans_red_val), 69 m_trans_green_val(trans_green_val), 70 m_trans_blue_val(trans_blue_val), 71 m_conformant(((red_size + green_size + blue_size + alpha_size > 0) && 72 (caveat!=EGL_NON_CONFORMANT_CONFIG)) ? 73 m_renderable_type : 0), 74 m_nativeFormat(frmt) {}; 75 76 77 EglConfig::EglConfig(const EglConfig& conf):m_buffer_size(conf.m_buffer_size), 78 m_red_size(conf.m_red_size), 79 m_green_size(conf.m_green_size), 80 m_blue_size(conf.m_blue_size), 81 m_alpha_size(conf.m_alpha_size), 82 m_bind_to_tex_rgb(conf.m_bind_to_tex_rgb), 83 m_bind_to_tex_rgba(conf.m_bind_to_tex_rgba), 84 m_caveat(conf.m_caveat), 85 m_config_id(conf.m_config_id), 86 m_native_config_id(conf.m_native_config_id), 87 m_frame_buffer_level(conf.m_frame_buffer_level), 88 m_depth_size(conf.m_depth_size), 89 m_max_pbuffer_width(conf.m_max_pbuffer_width), 90 m_max_pbuffer_height(conf.m_max_pbuffer_height), 91 m_max_pbuffer_size(conf.m_max_pbuffer_size), 92 m_max_swap_interval(conf.m_max_swap_interval), 93 m_min_swap_interval(conf.m_min_swap_interval), 94 m_native_renderable(conf.m_native_renderable), 95 m_renderable_type(conf.m_renderable_type), 96 m_native_visual_id(conf.m_native_visual_id), 97 m_native_visual_type(conf.m_native_visual_type), 98 m_sample_buffers_num(conf.m_sample_buffers_num), 99 m_samples_per_pixel(conf.m_samples_per_pixel), 100 m_stencil_size(conf.m_stencil_size), 101 m_surface_type(conf.m_surface_type), 102 m_transparent_type(conf.m_transparent_type), 103 m_trans_red_val(conf.m_trans_red_val), 104 m_trans_green_val(conf.m_trans_green_val), 105 m_trans_blue_val(conf.m_trans_blue_val), 106 m_conformant(conf.m_conformant), 107 m_nativeFormat(conf.m_nativeFormat) {}; 108 109 110 EglConfig::EglConfig(const EglConfig& conf, 111 EGLint config_id, 112 EGLint red_size, 113 EGLint green_size, 114 EGLint blue_size, 115 EGLint alpha_size): 116 117 m_buffer_size(red_size + green_size + blue_size + alpha_size), 118 m_red_size(red_size), 119 m_green_size(green_size), 120 m_blue_size(blue_size), 121 m_alpha_size(alpha_size), 122 m_bind_to_tex_rgb(conf.m_bind_to_tex_rgb), 123 m_bind_to_tex_rgba(conf.m_bind_to_tex_rgba), 124 m_caveat(conf.m_caveat), 125 m_config_id(config_id), 126 m_native_config_id(conf.m_native_config_id), 127 m_frame_buffer_level(conf.m_frame_buffer_level), 128 m_depth_size(conf.m_depth_size), 129 m_max_pbuffer_width(conf.m_max_pbuffer_width), 130 m_max_pbuffer_height(conf.m_max_pbuffer_height), 131 m_max_pbuffer_size(conf.m_max_pbuffer_size), 132 m_max_swap_interval(conf.m_max_swap_interval), 133 m_min_swap_interval(conf.m_min_swap_interval), 134 m_native_renderable(conf.m_native_renderable), 135 m_renderable_type(conf.m_renderable_type), 136 m_native_visual_id(conf.m_native_visual_id), 137 m_native_visual_type(conf.m_native_visual_type), 138 m_sample_buffers_num(conf.m_sample_buffers_num), 139 m_samples_per_pixel(conf.m_samples_per_pixel), 140 m_stencil_size(conf.m_stencil_size), 141 m_surface_type(conf.m_surface_type), 142 m_transparent_type(conf.m_transparent_type), 143 m_trans_red_val(conf.m_trans_red_val), 144 m_trans_green_val(conf.m_trans_green_val), 145 m_trans_blue_val(conf.m_trans_blue_val), 146 m_conformant(conf.m_conformant), 147 m_nativeFormat(conf.m_nativeFormat) {}; 148 149 150 bool EglConfig::getConfAttrib(EGLint attrib,EGLint* val) const { 151 switch(attrib) { 152 case EGL_BUFFER_SIZE: 153 *val = m_buffer_size; 154 break; 155 case EGL_RED_SIZE: 156 *val = m_red_size; 157 break; 158 case EGL_GREEN_SIZE: 159 *val = m_green_size; 160 break; 161 case EGL_BLUE_SIZE: 162 *val = m_blue_size; 163 break; 164 case EGL_ALPHA_SIZE: 165 *val = m_alpha_size; 166 break; 167 case EGL_BIND_TO_TEXTURE_RGB: 168 *val = m_bind_to_tex_rgb; 169 break; 170 case EGL_BIND_TO_TEXTURE_RGBA: 171 *val = m_bind_to_tex_rgba; 172 break; 173 case EGL_CONFIG_CAVEAT: 174 *val = m_caveat; 175 break; 176 case EGL_CONFIG_ID: 177 *val = m_config_id; 178 break; 179 case EGL_DEPTH_SIZE: 180 *val = m_depth_size; 181 break; 182 case EGL_LEVEL: 183 *val = m_frame_buffer_level; 184 break; 185 case EGL_MAX_PBUFFER_WIDTH: 186 *val = m_max_pbuffer_width; 187 break; 188 case EGL_MAX_PBUFFER_HEIGHT: 189 *val = m_max_pbuffer_height; 190 break; 191 case EGL_MAX_PBUFFER_PIXELS: 192 *val = m_max_pbuffer_size; 193 break; 194 case EGL_MAX_SWAP_INTERVAL: 195 *val = m_max_swap_interval; 196 break; 197 case EGL_MIN_SWAP_INTERVAL: 198 *val = m_min_swap_interval; 199 break; 200 case EGL_NATIVE_RENDERABLE: 201 *val = m_native_renderable; 202 break; 203 case EGL_NATIVE_VISUAL_ID: 204 *val = m_native_visual_id; 205 break; 206 case EGL_NATIVE_VISUAL_TYPE: 207 *val = m_native_visual_type; 208 break; 209 case EGL_RENDERABLE_TYPE: 210 *val = m_renderable_type; 211 break; 212 case EGL_SAMPLE_BUFFERS: 213 *val = m_sample_buffers_num; 214 break; 215 case EGL_SAMPLES: 216 *val = m_samples_per_pixel; 217 break; 218 case EGL_STENCIL_SIZE: 219 *val = m_stencil_size; 220 break; 221 case EGL_SURFACE_TYPE: 222 *val = m_surface_type; 223 break; 224 case EGL_TRANSPARENT_TYPE: 225 *val =m_transparent_type; 226 break; 227 case EGL_TRANSPARENT_RED_VALUE: 228 *val = m_trans_red_val; 229 break; 230 case EGL_TRANSPARENT_GREEN_VALUE: 231 *val = m_trans_green_val; 232 break; 233 case EGL_TRANSPARENT_BLUE_VALUE: 234 *val = m_trans_blue_val; 235 break; 236 case EGL_CONFORMANT: 237 *val = m_conformant; 238 break; 239 default: 240 return false; 241 } 242 return true; 243 } 244 245 // checking compitabilty between *this configuration and another configuration 246 // the compitability is checked againsed red,green,blue,buffer stencil and depth sizes 247 bool EglConfig::compitableWith(const EglConfig& conf) const { 248 249 if(m_buffer_size != conf.m_buffer_size) return false; 250 if(m_red_size != conf.m_red_size) return false; 251 if(m_green_size != conf.m_green_size) return false; 252 if(m_blue_size != conf.m_blue_size) return false; 253 if(m_depth_size != conf.m_depth_size) return false; 254 if(m_stencil_size != conf.m_stencil_size) return false; 255 256 return true; 257 } 258 259 //following the sorting EGLconfig as in spec 260 bool EglConfig::operator<(const EglConfig& conf) const { 261 //0 262 if(m_conformant != conf.m_conformant) { 263 return m_conformant != 0; //We want the conformant ones first 264 } 265 //1 266 if(m_caveat != conf.m_caveat) { 267 return m_caveat < conf.m_caveat; // EGL_NONE < EGL_SLOW_CONFIG < EGL_NON_CONFORMANT_CONFIG 268 } 269 //2 TODO: 270 271 //3 272 if(m_buffer_size != conf.m_buffer_size) { 273 return m_buffer_size < conf.m_buffer_size; 274 } 275 //4 276 if(m_sample_buffers_num != conf.m_sample_buffers_num) { 277 return m_sample_buffers_num < conf.m_sample_buffers_num; 278 } 279 //5 280 if(m_samples_per_pixel != conf.m_samples_per_pixel) { 281 return m_samples_per_pixel < conf.m_samples_per_pixel; 282 } 283 //6 284 if(m_depth_size != conf.m_depth_size) { 285 return m_depth_size < conf.m_depth_size; 286 } 287 //7 288 if(m_stencil_size != conf.m_stencil_size) { 289 return m_stencil_size < conf.m_stencil_size; 290 } 291 //8 implementation defined 292 if(m_native_visual_type != conf.m_native_visual_type) { 293 return m_native_visual_type < conf.m_native_visual_type; 294 } 295 //9 296 return m_config_id < conf.m_config_id; 297 } 298 299 bool EglConfig::operator>=(const EglConfig& conf) const { 300 return !((*this) < conf); 301 } 302 #define CHECK_PROP(dummy,prop_name,op) \ 303 if((dummy.prop_name != EGL_DONT_CARE) && (dummy.prop_name op prop_name)) return false; 304 #define CHECK_PROP_CAST(dummy,prop_name,op) \ 305 if((((EGLint)dummy.prop_name) != EGL_DONT_CARE) && (dummy.prop_name op prop_name)) return false; 306 //checking if config stands for all the selection crateria of dummy as defined by EGL spec 307 bool EglConfig::choosen(const EglConfig& dummy) { 308 309 //atleast 310 CHECK_PROP(dummy,m_buffer_size,>); 311 CHECK_PROP(dummy,m_red_size,>); 312 CHECK_PROP(dummy,m_green_size,>); 313 CHECK_PROP(dummy,m_blue_size,>); 314 CHECK_PROP(dummy,m_alpha_size,>); 315 CHECK_PROP(dummy,m_depth_size,>); 316 CHECK_PROP(dummy,m_stencil_size,>); 317 CHECK_PROP(dummy,m_sample_buffers_num,>); 318 CHECK_PROP(dummy,m_samples_per_pixel,>); 319 320 //exact 321 CHECK_PROP(dummy,m_frame_buffer_level,!=); 322 CHECK_PROP(dummy,m_config_id,!=); 323 CHECK_PROP(dummy,m_native_visual_type,!=); 324 CHECK_PROP(dummy,m_max_swap_interval ,!=); 325 CHECK_PROP(dummy,m_min_swap_interval ,!=); 326 CHECK_PROP(dummy,m_trans_red_val ,!=); 327 CHECK_PROP(dummy,m_trans_green_val ,!=); 328 CHECK_PROP(dummy,m_trans_blue_val ,!=); 329 //exact - when cast to EGLint is needed when comparing to EGL_DONT_CARE 330 CHECK_PROP_CAST(dummy,m_bind_to_tex_rgb ,!=); 331 CHECK_PROP_CAST(dummy,m_bind_to_tex_rgba,!=); 332 CHECK_PROP_CAST(dummy,m_caveat,!=); 333 CHECK_PROP_CAST(dummy,m_native_renderable ,!=); 334 CHECK_PROP_CAST(dummy,m_transparent_type ,!=); 335 336 //mask 337 if(dummy.m_surface_type != EGL_DONT_CARE && 338 ((dummy.m_surface_type & m_surface_type) != dummy.m_surface_type)) return false; 339 340 if(dummy.m_conformant != (EGLenum)EGL_DONT_CARE && 341 ((dummy.m_conformant & m_conformant) != dummy.m_conformant)) return false; 342 343 if(dummy.m_renderable_type != EGL_DONT_CARE && 344 ((dummy.m_renderable_type & m_renderable_type) != dummy.m_renderable_type)) return false; 345 346 //passed all checks 347 return true; 348 } 349
