src/video/SDL_egl_c.h
author Sam Lantinga <slouken@libsdl.org>
Fri, 09 Dec 2016 01:47:43 -0800
changeset 10690 23a825f341e6
parent 10638 d11daa346140
child 10737 3406a0f8b041
permissions -rw-r--r--
Fixed bug 3513 - SDL_GL_SwapWindow does not return error status

Return an error code from SDL_GL_SwapWindow(), like the other SDL APIs.
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2016 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 typedef struct SDL_EGL_VideoData
    33 {
    34     void *egl_dll_handle, *dll_handle;
    35     EGLDisplay egl_display;
    36     EGLConfig egl_config;
    37     int egl_swapinterval;
    38     
    39     EGLDisplay(EGLAPIENTRY *eglGetDisplay) (NativeDisplayType display);
    40     EGLBoolean(EGLAPIENTRY *eglInitialize) (EGLDisplay dpy, EGLint * major,
    41                                 EGLint * minor);
    42     EGLBoolean(EGLAPIENTRY  *eglTerminate) (EGLDisplay dpy);
    43     
    44     void *(EGLAPIENTRY *eglGetProcAddress) (const char * procName);
    45     
    46     EGLBoolean(EGLAPIENTRY *eglChooseConfig) (EGLDisplay dpy,
    47                                   const EGLint * attrib_list,
    48                                   EGLConfig * configs,
    49                                   EGLint config_size, EGLint * num_config);
    50     
    51     EGLContext(EGLAPIENTRY *eglCreateContext) (EGLDisplay dpy,
    52                                    EGLConfig config,
    53                                    EGLContext share_list,
    54                                    const EGLint * attrib_list);
    55     
    56     EGLBoolean(EGLAPIENTRY *eglDestroyContext) (EGLDisplay dpy, EGLContext ctx);
    57     
    58     EGLSurface(EGLAPIENTRY *eglCreateWindowSurface) (EGLDisplay dpy,
    59                                          EGLConfig config,
    60                                          NativeWindowType window,
    61                                          const EGLint * attrib_list);
    62     EGLBoolean(EGLAPIENTRY *eglDestroySurface) (EGLDisplay dpy, EGLSurface surface);
    63     
    64     EGLBoolean(EGLAPIENTRY *eglMakeCurrent) (EGLDisplay dpy, EGLSurface draw,
    65                                  EGLSurface read, EGLContext ctx);
    66     
    67     EGLBoolean(EGLAPIENTRY *eglSwapBuffers) (EGLDisplay dpy, EGLSurface draw);
    68     
    69     EGLBoolean(EGLAPIENTRY *eglSwapInterval) (EGLDisplay dpy, EGLint interval);
    70     
    71     const char *(EGLAPIENTRY *eglQueryString) (EGLDisplay dpy, EGLint name);
    72     
    73     EGLBoolean(EGLAPIENTRY  *eglGetConfigAttrib) (EGLDisplay dpy, EGLConfig config,
    74                                      EGLint attribute, EGLint * value);
    75     
    76     EGLBoolean(EGLAPIENTRY *eglWaitNative) (EGLint  engine);
    77 
    78     EGLBoolean(EGLAPIENTRY *eglWaitGL)(void);
    79     
    80     EGLBoolean(EGLAPIENTRY *eglBindAPI)(EGLenum);
    81 
    82 } SDL_EGL_VideoData;
    83 
    84 /* OpenGLES functions */
    85 extern int SDL_EGL_GetAttribute(_THIS, SDL_GLattr attrib, int *value);
    86 extern int SDL_EGL_LoadLibrary(_THIS, const char *path, NativeDisplayType native_display);
    87 extern void *SDL_EGL_GetProcAddress(_THIS, const char *proc);
    88 extern void SDL_EGL_UnloadLibrary(_THIS);
    89 extern int SDL_EGL_ChooseConfig(_THIS);
    90 extern int SDL_EGL_SetSwapInterval(_THIS, int interval);
    91 extern int SDL_EGL_GetSwapInterval(_THIS);
    92 extern void SDL_EGL_DeleteContext(_THIS, SDL_GLContext context);
    93 extern EGLSurface *SDL_EGL_CreateSurface(_THIS, NativeWindowType nw);
    94 extern void SDL_EGL_DestroySurface(_THIS, EGLSurface egl_surface);
    95 
    96 /* These need to be wrapped to get the surface for the window by the platform GLES implementation */
    97 extern SDL_GLContext SDL_EGL_CreateContext(_THIS, EGLSurface egl_surface);
    98 extern int SDL_EGL_MakeCurrent(_THIS, EGLSurface egl_surface, SDL_GLContext context);
    99 extern int SDL_EGL_SwapBuffers(_THIS, EGLSurface egl_surface);
   100 
   101 /* A few of useful macros */
   102 
   103 #define SDL_EGL_SwapWindow_impl(BACKEND) int \
   104 BACKEND ## _GLES_SwapWindow(_THIS, SDL_Window * window) \
   105 {\
   106     return SDL_EGL_SwapBuffers(_this, ((SDL_WindowData *) window->driverdata)->egl_surface);\
   107 }
   108 
   109 #define SDL_EGL_MakeCurrent_impl(BACKEND) int \
   110 BACKEND ## _GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context) \
   111 {\
   112     if (window && context) { \
   113         return SDL_EGL_MakeCurrent(_this, ((SDL_WindowData *) window->driverdata)->egl_surface, context); \
   114     }\
   115     else {\
   116         return SDL_EGL_MakeCurrent(_this, NULL, NULL);\
   117     }\
   118 }
   119 
   120 #define SDL_EGL_CreateContext_impl(BACKEND) SDL_GLContext \
   121 BACKEND ## _GLES_CreateContext(_THIS, SDL_Window * window) \
   122 {\
   123     return SDL_EGL_CreateContext(_this, ((SDL_WindowData *) window->driverdata)->egl_surface);\
   124 }
   125 
   126 #endif /* SDL_VIDEO_OPENGL_EGL */
   127 
   128 #endif /* SDL_egl_h_ */
   129 
   130 /* vi: set ts=4 sw=4 expandtab: */