1 /************************************************************************** 2 * 3 * Copyright 2008 VMware, Inc. 4 * Copyright 2009-2010 Chia-I Wu <olvaffe (at) gmail.com> 5 * Copyright 2010 LunarG, Inc. 6 * All Rights Reserved. 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a 9 * copy of this software and associated documentation files (the 10 * "Software"), to deal in the Software without restriction, including 11 * without limitation the rights to use, copy, modify, merge, publish, 12 * distribute, sub license, and/or sell copies of the Software, and to 13 * permit persons to whom the Software is furnished to do so, subject to 14 * the following conditions: 15 * 16 * The above copyright notice and this permission notice (including the 17 * next paragraph) shall be included in all copies or substantial portions 18 * of the Software. 19 * 20 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 21 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 23 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 24 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 25 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 26 * DEALINGS IN THE SOFTWARE. 27 * 28 **************************************************************************/ 29 30 31 #ifndef EGLSURFACE_INCLUDED 32 #define EGLSURFACE_INCLUDED 33 34 #include "c99_compat.h" 35 36 #include "egltypedefs.h" 37 #include "egldisplay.h" 38 39 40 #ifdef __cplusplus 41 extern "C" { 42 #endif 43 44 /** 45 * "Base" class for device driver surfaces. 46 */ 47 struct _egl_surface 48 { 49 /* A surface is a display resource */ 50 _EGLResource Resource; 51 52 /* The context that is currently bound to the surface */ 53 _EGLContext *CurrentContext; 54 55 _EGLConfig *Config; 56 57 EGLint Type; /* one of EGL_WINDOW_BIT, EGL_PIXMAP_BIT or EGL_PBUFFER_BIT */ 58 59 /* attributes set by attribute list */ 60 EGLint Width, Height; 61 EGLenum TextureFormat; 62 EGLenum TextureTarget; 63 EGLBoolean MipmapTexture; 64 EGLBoolean LargestPbuffer; 65 EGLenum RenderBuffer; 66 EGLenum VGAlphaFormat; 67 EGLenum VGColorspace; 68 EGLenum GLColorspace; 69 70 /* attributes set by eglSurfaceAttrib */ 71 EGLint MipmapLevel; 72 EGLenum MultisampleResolve; 73 EGLenum SwapBehavior; 74 75 EGLint HorizontalResolution, VerticalResolution; 76 EGLint AspectRatio; 77 78 EGLint SwapInterval; 79 80 /* True if the surface is bound to an OpenGL ES texture */ 81 EGLBoolean BoundToTexture; 82 83 EGLBoolean PostSubBufferSupportedNV; 84 }; 85 86 87 extern EGLBoolean 88 _eglInitSurface(_EGLSurface *surf, _EGLDisplay *dpy, EGLint type, 89 _EGLConfig *config, const EGLint *attrib_list); 90 91 92 extern EGLBoolean 93 _eglQuerySurface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint attribute, EGLint *value); 94 95 96 extern EGLBoolean 97 _eglSurfaceAttrib(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint attribute, EGLint value); 98 99 100 extern EGLBoolean 101 _eglBindTexImage(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint buffer); 102 103 extern EGLBoolean 104 _eglReleaseTexImage(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer); 105 106 107 extern EGLBoolean 108 _eglSwapInterval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf, EGLint interval); 109 110 111 /** 112 * Increment reference count for the surface. 113 */ 114 static inline _EGLSurface * 115 _eglGetSurface(_EGLSurface *surf) 116 { 117 if (surf) 118 _eglGetResource(&surf->Resource); 119 return surf; 120 } 121 122 123 /** 124 * Decrement reference count for the surface. 125 */ 126 static inline EGLBoolean 127 _eglPutSurface(_EGLSurface *surf) 128 { 129 return (surf) ? _eglPutResource(&surf->Resource) : EGL_FALSE; 130 } 131 132 133 /** 134 * Link a surface to its display and return the handle of the link. 135 * The handle can be passed to client directly. 136 */ 137 static inline EGLSurface 138 _eglLinkSurface(_EGLSurface *surf) 139 { 140 _eglLinkResource(&surf->Resource, _EGL_RESOURCE_SURFACE); 141 return (EGLSurface) surf; 142 } 143 144 145 /** 146 * Unlink a linked surface from its display. 147 * Accessing an unlinked surface should generate EGL_BAD_SURFACE error. 148 */ 149 static inline void 150 _eglUnlinkSurface(_EGLSurface *surf) 151 { 152 _eglUnlinkResource(&surf->Resource, _EGL_RESOURCE_SURFACE); 153 } 154 155 156 /** 157 * Lookup a handle to find the linked surface. 158 * Return NULL if the handle has no corresponding linked surface. 159 */ 160 static inline _EGLSurface * 161 _eglLookupSurface(EGLSurface surface, _EGLDisplay *dpy) 162 { 163 _EGLSurface *surf = (_EGLSurface *) surface; 164 if (!dpy || !_eglCheckResource((void *) surf, _EGL_RESOURCE_SURFACE, dpy)) 165 surf = NULL; 166 return surf; 167 } 168 169 170 /** 171 * Return the handle of a linked surface, or EGL_NO_SURFACE. 172 */ 173 static inline EGLSurface 174 _eglGetSurfaceHandle(_EGLSurface *surf) 175 { 176 _EGLResource *res = (_EGLResource *) surf; 177 return (res && _eglIsResourceLinked(res)) ? 178 (EGLSurface) surf : EGL_NO_SURFACE; 179 } 180 181 182 #ifdef __cplusplus 183 } 184 #endif 185 186 #endif /* EGLSURFACE_INCLUDED */ 187