256    struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(rb);  in xmesa_alloc_front_storage()  local
259    xrb->origin2 = NULL;  in xmesa_alloc_front_storage()
260    xrb->origin3 = NULL;  in xmesa_alloc_front_storage()
261    xrb->origin4 = NULL;  in xmesa_alloc_front_storage()
264    xrb->bottom = height - 1;  in xmesa_alloc_front_storage()
282    struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(rb);  in xmesa_alloc_back_storage()  local
285    assert(xrb->Parent);  in xmesa_alloc_back_storage()
286    alloc_back_buffer(xrb->Parent, width, height);  in xmesa_alloc_back_storage()
293    if (xrb->ximage) {  in xmesa_alloc_back_storage()
295       xrb->width2 = xrb->ximage->bytes_per_line / 2;  in xmesa_alloc_back_storage()
296       xrb->origin2 = (GLushort *) xrb->ximage->data + xrb->width2 * (height - 1);  in xmesa_alloc_back_storage()
299       xrb->width3 = xrb->ximage->bytes_per_line;  in xmesa_alloc_back_storage()
300       xrb->origin3 = (GLubyte *) xrb->ximage->data + xrb->width3 * (height - 1);  in xmesa_alloc_back_storage()
303       xrb->width4 = xrb->ximage->width;  in xmesa_alloc_back_storage()
304       xrb->origin4 = (GLuint *) xrb->ximage->data + xrb->width4 * (height - 1);  in xmesa_alloc_back_storage()
308       xrb->width2 = xrb->width3 = xrb->width4 = 0;  in xmesa_alloc_back_storage()
309       xrb->origin2 = NULL;  in xmesa_alloc_back_storage()
310       xrb->origin3 = NULL;  in xmesa_alloc_back_storage()
311       xrb->origin4 = NULL;  in xmesa_alloc_back_storage()
326    struct xmesa_renderbuffer *xrb = CALLOC_STRUCT(xmesa_renderbuffer);  in xmesa_new_renderbuffer()  local
327    if (xrb) {  in xmesa_new_renderbuffer()
329       _mesa_init_renderbuffer(&xrb->Base.Base, name);  in xmesa_new_renderbuffer()
331       xrb->Base.Base.Delete = xmesa_delete_renderbuffer;  in xmesa_new_renderbuffer()
333          xrb->Base.Base.AllocStorage = xmesa_alloc_back_storage;  in xmesa_new_renderbuffer()
335          xrb->Base.Base.AllocStorage = xmesa_alloc_front_storage;  in xmesa_new_renderbuffer()
337       xrb->Base.Base.InternalFormat = GL_RGBA;  in xmesa_new_renderbuffer()
338       xrb->Base.Base._BaseFormat = GL_RGBA;  in xmesa_new_renderbuffer()
339       xrb->Base.Base.ClassID = XMESA_RENDERBUFFER;  in xmesa_new_renderbuffer()
346          xrb->Base.Base.Format = MESA_FORMAT_B8G8R8X8_UNORM;  in xmesa_new_renderbuffer()
349          xrb->Base.Base.Format = MESA_FORMAT_B8G8R8A8_UNORM;  in xmesa_new_renderbuffer()
352          xrb->Base.Base.Format = MESA_FORMAT_R8G8B8A8_UNORM;  in xmesa_new_renderbuffer()
355          xrb->Base.Base.Format = MESA_FORMAT_B5G6R5_UNORM;  in xmesa_new_renderbuffer()
359          xrb->Base.Base.Format = MESA_FORMAT_B8G8R8A8_UNORM;  in xmesa_new_renderbuffer()
365    return xrb;  in xmesa_new_renderbuffer()
427    struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(rb);  in xmesa_MapRenderbuffer()  local
429    if (xrb->Base.Base.ClassID == XMESA_RENDERBUFFER) {  in xmesa_MapRenderbuffer()
430       XImage *ximage = xrb->ximage;  in xmesa_MapRenderbuffer()
432       assert(!xrb->map_mode); /* only a single mapping allowed */  in xmesa_MapRenderbuffer()
434       xrb->map_mode = mode;  in xmesa_MapRenderbuffer()
435       xrb->map_x = x;  in xmesa_MapRenderbuffer()
436       xrb->map_y = y;  in xmesa_MapRenderbuffer()
437       xrb->map_w = w;  in xmesa_MapRenderbuffer()
438       xrb->map_h = h;  in xmesa_MapRenderbuffer()
452          assert(xrb->pixmap);  in xmesa_MapRenderbuffer()
461          ximage = XGetImage(xrb->Parent->display,  in xmesa_MapRenderbuffer()
462                             xrb->pixmap, x, y2, w, h,  in xmesa_MapRenderbuffer()
470                _mesa_format_row_stride(xrb->Base.Base.Format,  in xmesa_MapRenderbuffer()
471                                        xrb->Base.Base.Width);  in xmesa_MapRenderbuffer()
473                                           xrb->Base.Base.Height);  in xmesa_MapRenderbuffer()
474             ximage = XCreateImage(xrb->Parent->display,  in xmesa_MapRenderbuffer()
475                                   xrb->Parent->xm_visual->visinfo->visual,  in xmesa_MapRenderbuffer()
476                                   xrb->Parent->xm_visual->visinfo->depth,  in xmesa_MapRenderbuffer()
480                                   xrb->Base.Base.Width,  in xmesa_MapRenderbuffer()
481                                   xrb->Base.Base.Height,  in xmesa_MapRenderbuffer()
492          xrb->map_ximage = ximage;  in xmesa_MapRenderbuffer()
518    struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(rb);  in xmesa_UnmapRenderbuffer()  local
520    if (xrb->Base.Base.ClassID == XMESA_RENDERBUFFER) {  in xmesa_UnmapRenderbuffer()
521       XImage *ximage = xrb->ximage;  in xmesa_UnmapRenderbuffer()
525          assert(xrb->pixmap);  in xmesa_UnmapRenderbuffer()
526          assert(xrb->map_ximage);  in xmesa_UnmapRenderbuffer()
527          if (xrb->map_ximage) {  in xmesa_UnmapRenderbuffer()
528             if (xrb->map_mode & GL_MAP_WRITE_BIT) {  in xmesa_UnmapRenderbuffer()
530                int y2 = rb->Height - xrb->map_y - xrb->map_h;  in xmesa_UnmapRenderbuffer()
531                GC gc = XCreateGC(xrb->Parent->display, xrb->pixmap, 0, NULL);  in xmesa_UnmapRenderbuffer()
533                XPutImage(xrb->Parent->display,  in xmesa_UnmapRenderbuffer()
534                          xrb->pixmap,              /* dest */  in xmesa_UnmapRenderbuffer()
536                          xrb->map_ximage,          /* source */  in xmesa_UnmapRenderbuffer()
538                          xrb->map_x, y2,           /* dest x, y */  in xmesa_UnmapRenderbuffer()
539                          xrb->map_w, xrb->map_h);  /* size */  in xmesa_UnmapRenderbuffer()
541                XFreeGC(xrb->Parent->display, gc);  in xmesa_UnmapRenderbuffer()
543             XMesaDestroyImage(xrb->map_ximage);  in xmesa_UnmapRenderbuffer()
544             xrb->map_ximage = NULL;  in xmesa_UnmapRenderbuffer()
548       xrb->map_mode = 0x0;  in xmesa_UnmapRenderbuffer()