SDL_egl_c.h (7566B)
1 /* 2 Simple DirectMedia Layer 3 Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org> 4 5 This software is provided 'as-is', without any express or implied 6 warranty. In no event will the authors be held liable for any damages 7 arising from the use of this software. 8 9 Permission is granted to anyone to use this software for any purpose, 10 including commercial applications, and to alter it and redistribute it 11 freely, subject to the following restrictions: 12 13 1. The origin of this software must not be misrepresented; you must not 14 claim that you wrote the original software. If you use this software 15 in a product, an acknowledgment in the product documentation would be 16 appreciated but is not required. 17 2. Altered source versions must be plainly marked as such, and must not be 18 misrepresented as being the original software. 19 3. This notice may not be removed or altered from any source distribution. 20 */ 21 #include "../SDL_internal.h" 22 23 #ifndef SDL_egl_h_ 24 #define SDL_egl_h_ 25 26 #if SDL_VIDEO_OPENGL_EGL 27 28 #include "SDL_egl.h" 29 30 #include "SDL_sysvideo.h" 31 32 #define SDL_EGL_MAX_DEVICES 8 33 34 typedef struct SDL_EGL_VideoData 35 { 36 void *egl_dll_handle, *dll_handle; 37 EGLDisplay egl_display; 38 EGLConfig egl_config; 39 int egl_swapinterval; 40 int egl_surfacetype; 41 int egl_version_major, egl_version_minor; 42 EGLint egl_required_visual_id; 43 44 EGLDisplay(EGLAPIENTRY *eglGetDisplay) (NativeDisplayType display); 45 EGLDisplay(EGLAPIENTRY *eglGetPlatformDisplay) (EGLenum platform, 46 void *native_display, 47 const EGLint *attrib_list); 48 EGLDisplay(EGLAPIENTRY *eglGetPlatformDisplayEXT) (EGLenum platform, 49 void *native_display, 50 const EGLint *attrib_list); 51 EGLBoolean(EGLAPIENTRY *eglInitialize) (EGLDisplay dpy, EGLint * major, 52 EGLint * minor); 53 EGLBoolean(EGLAPIENTRY *eglTerminate) (EGLDisplay dpy); 54 55 void *(EGLAPIENTRY *eglGetProcAddress) (const char * procName); 56 57 EGLBoolean(EGLAPIENTRY *eglChooseConfig) (EGLDisplay dpy, 58 const EGLint * attrib_list, 59 EGLConfig * configs, 60 EGLint config_size, EGLint * num_config); 61 62 EGLContext(EGLAPIENTRY *eglCreateContext) (EGLDisplay dpy, 63 EGLConfig config, 64 EGLContext share_list, 65 const EGLint * attrib_list); 66 67 EGLBoolean(EGLAPIENTRY *eglDestroyContext) (EGLDisplay dpy, EGLContext ctx); 68 69 EGLSurface(EGLAPIENTRY *eglCreatePbufferSurface)(EGLDisplay dpy, EGLConfig config, 70 EGLint const* attrib_list); 71 72 EGLSurface(EGLAPIENTRY *eglCreateWindowSurface) (EGLDisplay dpy, 73 EGLConfig config, 74 NativeWindowType window, 75 const EGLint * attrib_list); 76 EGLBoolean(EGLAPIENTRY *eglDestroySurface) (EGLDisplay dpy, EGLSurface surface); 77 78 EGLBoolean(EGLAPIENTRY *eglMakeCurrent) (EGLDisplay dpy, EGLSurface draw, 79 EGLSurface read, EGLContext ctx); 80 81 EGLBoolean(EGLAPIENTRY *eglSwapBuffers) (EGLDisplay dpy, EGLSurface draw); 82 83 EGLBoolean(EGLAPIENTRY *eglSwapInterval) (EGLDisplay dpy, EGLint interval); 84 85 const char *(EGLAPIENTRY *eglQueryString) (EGLDisplay dpy, EGLint name); 86 87 EGLenum(EGLAPIENTRY *eglQueryAPI)(void); 88 89 EGLBoolean(EGLAPIENTRY *eglGetConfigAttrib) (EGLDisplay dpy, EGLConfig config, 90 EGLint attribute, EGLint * value); 91 92 EGLBoolean(EGLAPIENTRY *eglWaitNative) (EGLint engine); 93 94 EGLBoolean(EGLAPIENTRY *eglWaitGL)(void); 95 96 EGLBoolean(EGLAPIENTRY *eglBindAPI)(EGLenum); 97 98 EGLint(EGLAPIENTRY *eglGetError)(void); 99 100 EGLBoolean(EGLAPIENTRY *eglQueryDevicesEXT)(EGLint max_devices, 101 void **devices, 102 EGLint *num_devices); 103 104 /* Atomic functions */ 105 106 EGLSyncKHR(EGLAPIENTRY *eglCreateSyncKHR)(EGLDisplay dpy, EGLenum type, const EGLint *attrib_list); 107 108 EGLBoolean(EGLAPIENTRY *eglDestroySyncKHR)(EGLDisplay dpy, EGLSyncKHR sync); 109 110 EGLint(EGLAPIENTRY *eglDupNativeFenceFDANDROID)(EGLDisplay dpy, EGLSyncKHR sync); 111 112 EGLint(EGLAPIENTRY *eglWaitSyncKHR)(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags); 113 114 EGLint(EGLAPIENTRY *eglClientWaitSyncKHR)(EGLDisplay dpy, EGLSyncKHR sync, EGLint flags, EGLTimeKHR timeout); 115 116 /* Atomic functions end */ 117 118 119 /* whether EGL display was offscreen */ 120 int is_offscreen; 121 122 } SDL_EGL_VideoData; 123 124 /* OpenGLES functions */ 125 typedef enum SDL_EGL_ExtensionType { 126 SDL_EGL_DISPLAY_EXTENSION, 127 SDL_EGL_CLIENT_EXTENSION 128 } SDL_EGL_ExtensionType; 129 130 extern SDL_bool SDL_EGL_HasExtension(_THIS, SDL_EGL_ExtensionType type, const char *ext); 131 132 extern int SDL_EGL_GetAttribute(_THIS, SDL_GLattr attrib, int *value); 133 /* SDL_EGL_LoadLibrary can get a display for a specific platform (EGL_PLATFORM_*) 134 * or, if 0 is passed, let the implementation decide. 135 */ 136 extern int SDL_EGL_LoadLibraryOnly(_THIS, const char *path); 137 extern int SDL_EGL_LoadLibrary(_THIS, const char *path, NativeDisplayType native_display, EGLenum platform); 138 extern void *SDL_EGL_GetProcAddress(_THIS, const char *proc); 139 extern void SDL_EGL_UnloadLibrary(_THIS); 140 extern void SDL_EGL_SetRequiredVisualId(_THIS, int visual_id); 141 extern int SDL_EGL_ChooseConfig(_THIS); 142 extern int SDL_EGL_SetSwapInterval(_THIS, int interval); 143 extern int SDL_EGL_GetSwapInterval(_THIS); 144 extern void SDL_EGL_DeleteContext(_THIS, SDL_GLContext context); 145 extern EGLSurface *SDL_EGL_CreateSurface(_THIS, NativeWindowType nw); 146 extern void SDL_EGL_DestroySurface(_THIS, EGLSurface egl_surface); 147 148 extern EGLSurface SDL_EGL_CreateOffscreenSurface(_THIS, int width, int height); 149 /* Assumes that LoadLibraryOnly() has succeeded */ 150 extern int SDL_EGL_InitializeOffscreen(_THIS, int device); 151 152 /* These need to be wrapped to get the surface for the window by the platform GLES implementation */ 153 extern SDL_GLContext SDL_EGL_CreateContext(_THIS, EGLSurface egl_surface); 154 extern int SDL_EGL_MakeCurrent(_THIS, EGLSurface egl_surface, SDL_GLContext context); 155 extern int SDL_EGL_SwapBuffers(_THIS, EGLSurface egl_surface); 156 157 /* SDL Error-reporting */ 158 extern int SDL_EGL_SetErrorEx(const char * message, const char * eglFunctionName, EGLint eglErrorCode); 159 #define SDL_EGL_SetError(message, eglFunctionName) SDL_EGL_SetErrorEx(message, eglFunctionName, _this->egl_data->eglGetError()) 160 161 /* A few of useful macros */ 162 163 #define SDL_EGL_SwapWindow_impl(BACKEND) int \ 164 BACKEND ## _GLES_SwapWindow(_THIS, SDL_Window * window) \ 165 {\ 166 return SDL_EGL_SwapBuffers(_this, ((SDL_WindowData *) window->driverdata)->egl_surface);\ 167 } 168 169 #define SDL_EGL_MakeCurrent_impl(BACKEND) int \ 170 BACKEND ## _GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context) \ 171 {\ 172 return SDL_EGL_MakeCurrent(_this, window ? ((SDL_WindowData *) window->driverdata)->egl_surface : EGL_NO_SURFACE, context);\ 173 } 174 175 #define SDL_EGL_CreateContext_impl(BACKEND) SDL_GLContext \ 176 BACKEND ## _GLES_CreateContext(_THIS, SDL_Window * window) \ 177 {\ 178 return SDL_EGL_CreateContext(_this, ((SDL_WindowData *) window->driverdata)->egl_surface);\ 179 } 180 181 #endif /* SDL_VIDEO_OPENGL_EGL */ 182 183 #endif /* SDL_egl_h_ */ 184 185 /* vi: set ts=4 sw=4 expandtab: */