1cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)/************************************************************************** 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copyright 2009-2010 Chia-I Wu <olvaffe@gmail.com> 5cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * Copyright 2010-2011 LunarG, Inc. 6cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * All Rights Reserved. 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * 868043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles) * Permission is hereby granted, free of charge, to any person obtaining a 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * copy of this software and associated documentation files (the 10cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * "Software"), to deal in the Software without restriction, including 115821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * without limitation the rights to use, copy, modify, merge, publish, 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * distribute, sub license, and/or sell copies of the Software, and to 13cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * permit persons to whom the Software is furnished to do so, subject to 14cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * the following conditions: 15cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * 16cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * The above copyright notice and this permission notice (including the 17cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * next paragraph) shall be included in all copies or substantial portions 18cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * of the Software. 19cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * 20cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 21cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 23cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 24cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 25cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 26cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * DEALINGS IN THE SOFTWARE. 27cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * 28cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) **************************************************************************/ 29cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 30cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 31cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)/** 32cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) * Small/misc EGL functions 33cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) */ 34cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 35cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 36cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#include <assert.h> 37cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles)#include <string.h> 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "eglcurrent.h" 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "eglmisc.h" 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "egldisplay.h" 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "egldriver.h" 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "eglstring.h" 437dbb3d5cf0c15f500944d211057644d6a2f37371Ben Murdoch 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)/** 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) * Copy the extension into the string and update the string pointer. 475821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) */ 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)static EGLint 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)_eglAppendExtension(char **str, const char *ext) 5068043e1e95eeb07d5cae7aca370b26518b0867d6Torne (Richard Coles){ 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) char *s = *str; 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) size_t len = strlen(ext); 535821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 545821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) if (s) { 555821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) memcpy(s, ext, len); 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) s[len++] = ' '; 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) s[len] = '\0'; 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) *str += len; 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) else { 62cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) len++; 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) } 64cedac228d2dd51db4b79ea1e72c7f249408ee061Torne (Richard Coles) 65 return (EGLint) len; 66} 67 68 69/** 70 * Examine the individual extension enable/disable flags and recompute 71 * the driver's Extensions string. 72 */ 73static void 74_eglUpdateExtensionsString(_EGLDisplay *dpy) 75{ 76#define _EGL_CHECK_EXTENSION(ext) \ 77 do { \ 78 if (dpy->Extensions.ext) { \ 79 _eglAppendExtension(&exts, "EGL_" #ext); \ 80 assert(exts <= dpy->ExtensionsString + _EGL_MAX_EXTENSIONS_LEN); \ 81 } \ 82 } while (0) 83 84 char *exts = dpy->ExtensionsString; 85 86 if (exts[0]) 87 return; 88 89 _EGL_CHECK_EXTENSION(MESA_screen_surface); 90 _EGL_CHECK_EXTENSION(MESA_copy_context); 91 _EGL_CHECK_EXTENSION(MESA_drm_display); 92 _EGL_CHECK_EXTENSION(MESA_drm_image); 93 94 _EGL_CHECK_EXTENSION(WL_bind_wayland_display); 95 96 _EGL_CHECK_EXTENSION(KHR_image_base); 97 _EGL_CHECK_EXTENSION(KHR_image_pixmap); 98 if (dpy->Extensions.KHR_image_base && dpy->Extensions.KHR_image_pixmap) 99 _eglAppendExtension(&exts, "EGL_KHR_image"); 100 101 _EGL_CHECK_EXTENSION(KHR_vg_parent_image); 102 _EGL_CHECK_EXTENSION(KHR_gl_texture_2D_image); 103 _EGL_CHECK_EXTENSION(KHR_gl_texture_cubemap_image); 104 _EGL_CHECK_EXTENSION(KHR_gl_texture_3D_image); 105 _EGL_CHECK_EXTENSION(KHR_gl_renderbuffer_image); 106 107 _EGL_CHECK_EXTENSION(KHR_reusable_sync); 108 _EGL_CHECK_EXTENSION(KHR_fence_sync); 109 110 _EGL_CHECK_EXTENSION(KHR_surfaceless_context); 111 _EGL_CHECK_EXTENSION(KHR_create_context); 112 113 _EGL_CHECK_EXTENSION(NOK_swap_region); 114 _EGL_CHECK_EXTENSION(NOK_texture_from_pixmap); 115 116 _EGL_CHECK_EXTENSION(ANDROID_image_native_buffer); 117 118 _EGL_CHECK_EXTENSION(EXT_create_context_robustness); 119 120 _EGL_CHECK_EXTENSION(NV_post_sub_buffer); 121#undef _EGL_CHECK_EXTENSION 122} 123 124 125static void 126_eglUpdateAPIsString(_EGLDisplay *dpy) 127{ 128 char *apis = dpy->ClientAPIsString; 129 130 if (apis[0] || !dpy->ClientAPIs) 131 return; 132 133 if (dpy->ClientAPIs & EGL_OPENGL_BIT) 134 strcat(apis, "OpenGL "); 135 136 if (dpy->ClientAPIs & EGL_OPENGL_ES_BIT) 137 strcat(apis, "OpenGL_ES "); 138 139 if (dpy->ClientAPIs & EGL_OPENGL_ES2_BIT) 140 strcat(apis, "OpenGL_ES2 "); 141 142 if (dpy->ClientAPIs & EGL_OPENVG_BIT) 143 strcat(apis, "OpenVG "); 144 145 assert(strlen(apis) < sizeof(dpy->ClientAPIsString)); 146} 147 148 149const char * 150_eglQueryString(_EGLDriver *drv, _EGLDisplay *dpy, EGLint name) 151{ 152 (void) drv; 153 154 switch (name) { 155 case EGL_VENDOR: 156 return _EGL_VENDOR_STRING; 157 case EGL_VERSION: 158 _eglsnprintf(dpy->VersionString, sizeof(dpy->VersionString), 159 "%d.%d (%s)", dpy->VersionMajor, dpy->VersionMinor, 160 dpy->Driver->Name); 161 return dpy->VersionString; 162 case EGL_EXTENSIONS: 163 _eglUpdateExtensionsString(dpy); 164 return dpy->ExtensionsString; 165 case EGL_CLIENT_APIS: 166 _eglUpdateAPIsString(dpy); 167 return dpy->ClientAPIsString; 168 default: 169 _eglError(EGL_BAD_PARAMETER, "eglQueryString"); 170 return NULL; 171 } 172} 173