view.h

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/*
 * (c) 2008-2009 Adam Lackorzynski <adam@os.inf.tu-dresden.de>
 *     economic rights: Technische Universität Dresden (Germany)
 *
 * License: see LICENSE.spdx (in this directory or the directories above)
 */
#pragma once
 
#include <l4/sys/compiler.h>
#include <l4/sys/types.h>
#include <l4/re/c/dataspace.h>
#include <l4/re/c/video/colors.h>

enum l4re_video_view_info_flags_t
{
  F_l4re_video_view_none               = 0x00, 
  F_l4re_video_view_set_buffer         = 0x01, 
  F_l4re_video_view_set_buffer_offset  = 0x02, 
  F_l4re_video_view_set_bytes_per_line = 0x04, 
  F_l4re_video_view_set_pixel          = 0x08, 
  F_l4re_video_view_set_position       = 0x10, 
  F_l4re_video_view_dyn_allocated      = 0x20, 
  F_l4re_video_view_set_background     = 0x40, 
  F_l4re_video_view_set_flags          = 0x80, 
  F_l4re_video_view_fully_dynamic      =   F_l4re_video_view_set_buffer
                                         | F_l4re_video_view_set_buffer_offset
                                         | F_l4re_video_view_set_bytes_per_line
                                         | F_l4re_video_view_set_pixel
                                         | F_l4re_video_view_set_position
                                         | F_l4re_video_view_dyn_allocated,
 
  F_l4re_video_view_above      = 0x01000, 
  F_l4re_video_view_flags_mask = 0xff000, 
};

typedef struct l4re_video_view_info_t
{
  unsigned                flags;                     
  unsigned                view_index;                
  unsigned long           xpos, ypos, width, height; 
  unsigned long           buffer_offset;             
  unsigned long           bytes_per_line;            
  l4re_video_pixel_info_t pixel_info;                
  unsigned                buffer_index;              
} l4re_video_view_info_t;
 

typedef struct l4re_video_view_t
{
  l4_cap_idx_t goos;
  unsigned idx;
} l4re_video_view_t;
 
 
L4_BEGIN_DECLS

L4_CV int
l4re_video_view_refresh(l4re_video_view_t *view, int x, int y, int w,
                        int h) L4_NOTHROW;

L4_CV int
l4re_video_view_get_info(l4re_video_view_t *view,
                         l4re_video_view_info_t *info) L4_NOTHROW;

L4_CV int
l4re_video_view_set_info(l4re_video_view_t *view,
                         l4re_video_view_info_t *info) L4_NOTHROW;

L4_CV int
l4re_video_view_set_viewport(l4re_video_view_t *view, int x, int y, int w,
                             int h, unsigned long bofs) L4_NOTHROW;

L4_CV int
l4re_video_view_stack(l4re_video_view_t *view, l4re_video_view_t *pivot,
                      int behind) L4_NOTHROW;
 
L4_END_DECLS