258    struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(rb);  in xmesa_alloc_front_storage()  local
261    xrb->origin2 = NULL;  in xmesa_alloc_front_storage()
262    xrb->origin3 = NULL;  in xmesa_alloc_front_storage()
263    xrb->origin4 = NULL;  in xmesa_alloc_front_storage()
266    xrb->bottom = height - 1;  in xmesa_alloc_front_storage()
284    struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(rb);  in xmesa_alloc_back_storage()  local
287    assert(xrb->Parent);  in xmesa_alloc_back_storage()
288    alloc_back_buffer(xrb->Parent, width, height);  in xmesa_alloc_back_storage()
295    if (xrb->ximage) {  in xmesa_alloc_back_storage()
297       xrb->width2 = xrb->ximage->bytes_per_line / 2;  in xmesa_alloc_back_storage()
298       xrb->origin2 = (GLushort *) xrb->ximage->data + xrb->width2 * (height - 1);  in xmesa_alloc_back_storage()
301       xrb->width3 = xrb->ximage->bytes_per_line;  in xmesa_alloc_back_storage()
302       xrb->origin3 = (GLubyte *) xrb->ximage->data + xrb->width3 * (height - 1);  in xmesa_alloc_back_storage()
305       xrb->width4 = xrb->ximage->width;  in xmesa_alloc_back_storage()
306       xrb->origin4 = (GLuint *) xrb->ximage->data + xrb->width4 * (height - 1);  in xmesa_alloc_back_storage()
310       xrb->width2 = xrb->width3 = xrb->width4 = 0;  in xmesa_alloc_back_storage()
311       xrb->origin2 = NULL;  in xmesa_alloc_back_storage()
312       xrb->origin3 = NULL;  in xmesa_alloc_back_storage()
313       xrb->origin4 = NULL;  in xmesa_alloc_back_storage()
328    struct xmesa_renderbuffer *xrb = CALLOC_STRUCT(xmesa_renderbuffer);  in xmesa_new_renderbuffer()  local
329    if (xrb) {  in xmesa_new_renderbuffer()
331       _mesa_init_renderbuffer(&xrb->Base.Base, name);  in xmesa_new_renderbuffer()
333       xrb->Base.Base.Delete = xmesa_delete_renderbuffer;  in xmesa_new_renderbuffer()
335          xrb->Base.Base.AllocStorage = xmesa_alloc_back_storage;  in xmesa_new_renderbuffer()
337          xrb->Base.Base.AllocStorage = xmesa_alloc_front_storage;  in xmesa_new_renderbuffer()
339       xrb->Base.Base.InternalFormat = GL_RGBA;  in xmesa_new_renderbuffer()
340       xrb->Base.Base._BaseFormat = GL_RGBA;  in xmesa_new_renderbuffer()
341       xrb->Base.Base.ClassID = XMESA_RENDERBUFFER;  in xmesa_new_renderbuffer()
348          xrb->Base.Base.Format = MESA_FORMAT_B8G8R8X8_UNORM;  in xmesa_new_renderbuffer()
351          xrb->Base.Base.Format = MESA_FORMAT_B8G8R8A8_UNORM;  in xmesa_new_renderbuffer()
354          xrb->Base.Base.Format = MESA_FORMAT_R8G8B8A8_UNORM;  in xmesa_new_renderbuffer()
357          xrb->Base.Base.Format = MESA_FORMAT_B5G6R5_UNORM;  in xmesa_new_renderbuffer()
361          xrb->Base.Base.Format = MESA_FORMAT_B8G8R8A8_UNORM;  in xmesa_new_renderbuffer()
367    return xrb;  in xmesa_new_renderbuffer()
430    struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(rb);  in xmesa_MapRenderbuffer()  local
432    if (xrb->Base.Base.ClassID == XMESA_RENDERBUFFER) {  in xmesa_MapRenderbuffer()
433       XImage *ximage = xrb->ximage;  in xmesa_MapRenderbuffer()
435       assert(!xrb->map_mode); /* only a single mapping allowed */  in xmesa_MapRenderbuffer()
437       xrb->map_mode = mode;  in xmesa_MapRenderbuffer()
438       xrb->map_x = x;  in xmesa_MapRenderbuffer()
439       xrb->map_y = y;  in xmesa_MapRenderbuffer()
440       xrb->map_w = w;  in xmesa_MapRenderbuffer()
441       xrb->map_h = h;  in xmesa_MapRenderbuffer()
455          assert(xrb->pixmap);  in xmesa_MapRenderbuffer()
464          ximage = XGetImage(xrb->Parent->display,  in xmesa_MapRenderbuffer()
465                             xrb->pixmap, x, y2, w, h,  in xmesa_MapRenderbuffer()
473                _mesa_format_row_stride(xrb->Base.Base.Format,  in xmesa_MapRenderbuffer()
474                                        xrb->Base.Base.Width);  in xmesa_MapRenderbuffer()
476                                           xrb->Base.Base.Height);  in xmesa_MapRenderbuffer()
477             ximage = XCreateImage(xrb->Parent->display,  in xmesa_MapRenderbuffer()
478                                   xrb->Parent->xm_visual->visinfo->visual,  in xmesa_MapRenderbuffer()
479                                   xrb->Parent->xm_visual->visinfo->depth,  in xmesa_MapRenderbuffer()
483                                   xrb->Base.Base.Width,  in xmesa_MapRenderbuffer()
484                                   xrb->Base.Base.Height,  in xmesa_MapRenderbuffer()
495          xrb->map_ximage = ximage;  in xmesa_MapRenderbuffer()
521    struct xmesa_renderbuffer *xrb = xmesa_renderbuffer(rb);  in xmesa_UnmapRenderbuffer()  local
523    if (xrb->Base.Base.ClassID == XMESA_RENDERBUFFER) {  in xmesa_UnmapRenderbuffer()
524       XImage *ximage = xrb->ximage;  in xmesa_UnmapRenderbuffer()
528          assert(xrb->pixmap);  in xmesa_UnmapRenderbuffer()
529          assert(xrb->map_ximage);  in xmesa_UnmapRenderbuffer()
530          if (xrb->map_ximage) {  in xmesa_UnmapRenderbuffer()
531             if (xrb->map_mode & GL_MAP_WRITE_BIT) {  in xmesa_UnmapRenderbuffer()
533                int y2 = rb->Height - xrb->map_y - xrb->map_h;  in xmesa_UnmapRenderbuffer()
534                GC gc = XCreateGC(xrb->Parent->display, xrb->pixmap, 0, NULL);  in xmesa_UnmapRenderbuffer()
536                XPutImage(xrb->Parent->display,  in xmesa_UnmapRenderbuffer()
537                          xrb->pixmap,              /* dest */  in xmesa_UnmapRenderbuffer()
539                          xrb->map_ximage,          /* source */  in xmesa_UnmapRenderbuffer()
541                          xrb->map_x, y2,           /* dest x, y */  in xmesa_UnmapRenderbuffer()
542                          xrb->map_w, xrb->map_h);  /* size */  in xmesa_UnmapRenderbuffer()
544                XFreeGC(xrb->Parent->display, gc);  in xmesa_UnmapRenderbuffer()
546             XMesaDestroyImage(xrb->map_ximage);  in xmesa_UnmapRenderbuffer()
547             xrb->map_ximage = NULL;  in xmesa_UnmapRenderbuffer()
551       xrb->map_mode = 0x0;  in xmesa_UnmapRenderbuffer()