EGLBoolean eglSwapBuffers(EGLDisplay display, EGLSurface surface)
{
if(!libEGL) {
shim_load_libEGL();
}
if(!global_smaa) {
global_smaa = smaa_create();
}
smaa_update(global_smaa);
return _eglSwapBuffers(display, surface);
}
/* If the backbuffer is on a videocard, this is extraordinarily slow!
*/
static EGLBoolean
fbSwapBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw)
{
fbContext *context = (fbContext *)_eglGetCurrentContext();
fbSurface *fs = Lookup_fbSurface(draw);
struct gl_renderbuffer * front_renderbuffer = fs->mesa_framebuffer->Attachment[BUFFER_FRONT_LEFT].Renderbuffer;
void *frontBuffer = front_renderbuffer->Data;
int currentPitch = ((driRenderbuffer *)front_renderbuffer)->pitch;
void *backBuffer = fs->mesa_framebuffer->Attachment[BUFFER_BACK_LEFT].Renderbuffer->Data;
if (!_eglSwapBuffers(drv, dpy, draw))
return EGL_FALSE;
if (context) {
GLcontext *ctx = context->glCtx;
if (ctx->Visual.doubleBufferMode) {
int i;
int offset = 0;
char *tmp = _mesa_malloc(currentPitch);
_mesa_notifySwapBuffers( ctx ); /* flush pending rendering comands */
ASSERT(frontBuffer);
ASSERT(backBuffer);
for (i = 0; i < fs->Base.Height; i++) {
_mesa_memcpy(tmp, (char *) backBuffer + offset,
currentPitch);
_mesa_memcpy((char *) frontBuffer + offset, tmp,
currentPitch);
offset += currentPitch;
}
_mesa_free(tmp);
}
}
else {
/* XXX this shouldn't be an error but we can't handle it for now */
_mesa_problem(NULL, "fbSwapBuffers: drawable has no context!\n");
return EGL_FALSE;
}
return EGL_TRUE;
}
static EGLBoolean
xlib_eglSwapBuffers(_EGLDriver *drv, EGLDisplay dpy, EGLSurface draw)
{
/* error checking step: */
if (!_eglSwapBuffers(drv, dpy, draw))
return EGL_FALSE;
{
struct xlib_egl_surface *xsurf = lookup_surface(draw);
struct pipe_winsys *pws = xsurf->winsys;
struct pipe_surface *psurf =
st_get_framebuffer_surface(xsurf->Framebuffer, ST_SURFACE_BACK_LEFT);
st_notify_swapbuffers(xsurf->Framebuffer);
display_surface(pws, psurf, xsurf);
check_and_update_buffer_size(xsurf);
}
return EGL_TRUE;
}
EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface surface)
{
EGL_DEBUG("%s: %s\n", __FILE__, __func__);
EGL_DLSYM(eglSwapBuffers);
return _eglSwapBuffers(dpy, surface);
}