src/video/x11/SDL_x11opengles.h
author Sam Lantinga <slouken@libsdl.org>
Sun, 08 Jan 2012 13:31:22 -0500
changeset 6190 519380462400
parent 6188 e82023802002
child 6370 93187f7f7d5d
permissions -rwxr-xr-x
X11 OpenGL ES minor corrections

Scott Percival 2012-01-08 04:21:22 PST

I tested the new build on my two ARM machines, and fixed a few bugs:
- if SDL_VIDEO_DRIVER_UIKIT, SDL_VIDEO_DRIVER_ANDROID or
SDL_VIDEO_DRIVER_PANDORA are specified, function pointers are grabbed from the
compile-linked library instead of through SDL_GL_GetProcAddress. (not sure if
this is the best way to go about it)
- removing "/usr/lib/" from all the library names (hey, with multiarch you
can't be too sure anymore)
- added glFinish to glesfuncs.h
- changed the eglGetProcAddress arg type to "const char *" as per the EGL spec
- filled in the stubs for X11_GLES_SetSwapInterval and X11_GLES_GetSwapInterval
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2012 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 
    22 #include <GLES/gl.h>
    23 #include <GLES/egl.h>
    24 #include <dlfcn.h>
    25 #if defined(__OpenBSD__) && !defined(__ELF__)
    26 #define dlsym(x,y) dlsym(x, "_" y)
    27 #endif
    28 
    29 #include "../SDL_sysvideo.h"
    30 
    31 typedef struct SDL_PrivateGLESData
    32 {
    33     int egl_active;             /* to stop switching drivers while we have a valid context */
    34     XVisualInfo *egl_visualinfo;
    35     void *egl_dll_handle;
    36     EGLDisplay egl_display;
    37     EGLContext egl_context;     /* Current GLES context */
    38     EGLSurface egl_surface;
    39     EGLConfig egl_config;
    40     int egl_swapinterval;
    41 
    42       EGLDisplay(*eglGetDisplay) (NativeDisplayType display);
    43       EGLBoolean(*eglInitialize) (EGLDisplay dpy, EGLint * major,
    44                                   EGLint * minor);
    45       EGLBoolean(*eglTerminate) (EGLDisplay dpy);
    46 
    47     void *(*eglGetProcAddress) (const char * procName);
    48 
    49       EGLBoolean(*eglChooseConfig) (EGLDisplay dpy,
    50                                     const EGLint * attrib_list,
    51                                     EGLConfig * configs,
    52                                     EGLint config_size, EGLint * num_config);
    53 
    54       EGLContext(*eglCreateContext) (EGLDisplay dpy,
    55                                      EGLConfig config,
    56                                      EGLContext share_list,
    57                                      const EGLint * attrib_list);
    58 
    59       EGLBoolean(*eglDestroyContext) (EGLDisplay dpy, EGLContext ctx);
    60 
    61       EGLSurface(*eglCreateWindowSurface) (EGLDisplay dpy,
    62                                            EGLConfig config,
    63                                            NativeWindowType window,
    64                                            const EGLint * attrib_list);
    65       EGLBoolean(*eglDestroySurface) (EGLDisplay dpy, EGLSurface surface);
    66 
    67       EGLBoolean(*eglMakeCurrent) (EGLDisplay dpy, EGLSurface draw,
    68                                    EGLSurface read, EGLContext ctx);
    69 
    70       EGLBoolean(*eglSwapBuffers) (EGLDisplay dpy, EGLSurface draw);
    71 
    72       EGLBoolean(*eglSwapInterval) (EGLDisplay dpy, EGLint interval);
    73 
    74     const char *(*eglQueryString) (EGLDisplay dpy, EGLint name);
    75 
    76       EGLBoolean(*eglGetConfigAttrib) (EGLDisplay dpy, EGLConfig config,
    77                                        EGLint attribute, EGLint * value);
    78 
    79 } SDL_PrivateGLESData;
    80 
    81 /* OpenGLES functions */
    82 extern SDL_GLContext X11_GLES_CreateContext(_THIS, SDL_Window * window);
    83 extern XVisualInfo *X11_GLES_GetVisual(_THIS, Display * display, int screen);
    84 extern int X11_GLES_MakeCurrent(_THIS, SDL_Window * window,
    85                                 SDL_GLContext context);
    86 extern int X11_GLES_GetAttribute(_THIS, SDL_GLattr attrib, int *value);
    87 extern int X11_GLES_LoadLibrary(_THIS, const char *path);
    88 extern void *X11_GLES_GetProcAddress(_THIS, const char *proc);
    89 extern void X11_GLES_UnloadLibrary(_THIS);
    90 
    91 extern int X11_GLES_SetSwapInterval(_THIS, int interval);
    92 extern int X11_GLES_GetSwapInterval(_THIS);
    93 extern void X11_GLES_SwapWindow(_THIS, SDL_Window * window);
    94 extern void X11_GLES_DeleteContext(_THIS, SDL_GLContext context);