146 lines
4.3 KiB
C
146 lines
4.3 KiB
C
/**************************************************************************
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*
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* Copyright 2007-2009 VMware, Inc.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* @file
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* Software rasterizer winsys.
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*/
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#ifndef SW_WINSYS_H
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#define SW_WINSYS_H
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#include "pipe/p_compiler.h" /* for boolean */
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#include "pipe/p_format.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct winsys_handle;
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struct pipe_screen;
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struct pipe_context;
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struct pipe_resource;
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/**
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* Opaque pointer.
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*/
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struct sw_displaytarget;
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/**
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* This is the interface that sw expects any window system
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* hosting it to implement.
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*
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* sw is for the most part a self sufficient driver. The only thing it
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* does not know is how to display a surface.
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*/
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struct sw_winsys
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{
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void
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(*destroy)( struct sw_winsys *ws );
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boolean
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(*is_displaytarget_format_supported)( struct sw_winsys *ws,
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unsigned tex_usage,
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enum pipe_format format );
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/**
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* Allocate storage for a render target.
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*
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* Often surfaces which are meant to be blitted to the front screen (i.e.,
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* display targets) must be allocated with special characteristics, memory
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* pools, or obtained directly from the windowing system.
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*
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* This callback is invoked by the pipe_screen when creating a texture marked
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* with the PIPE_BIND_DISPLAY_TARGET flag to get the underlying
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* storage.
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*/
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struct sw_displaytarget *
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(*displaytarget_create)( struct sw_winsys *ws,
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unsigned tex_usage,
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enum pipe_format format,
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unsigned width, unsigned height,
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unsigned alignment,
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unsigned *stride );
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/**
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* Used to implement texture_from_handle.
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*/
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struct sw_displaytarget *
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(*displaytarget_from_handle)( struct sw_winsys *ws,
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const struct pipe_resource *templat,
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struct winsys_handle *whandle,
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unsigned *stride );
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/**
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* Used to implement texture_get_handle.
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*/
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boolean
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(*displaytarget_get_handle)( struct sw_winsys *ws,
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struct sw_displaytarget *dt,
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struct winsys_handle *whandle );
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/**
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* \param flags bitmask of PIPE_TRANSFER_x flags
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*/
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void *
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(*displaytarget_map)( struct sw_winsys *ws,
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struct sw_displaytarget *dt,
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unsigned flags );
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void
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(*displaytarget_unmap)( struct sw_winsys *ws,
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struct sw_displaytarget *dt );
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/**
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* @sa pipe_screen:flush_frontbuffer.
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*
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* This call will likely become asynchronous eventually.
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*/
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void
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(*displaytarget_display)( struct sw_winsys *ws,
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struct sw_displaytarget *dt,
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void *context_private );
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void
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(*displaytarget_destroy)( struct sw_winsys *ws,
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struct sw_displaytarget *dt );
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};
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#ifdef __cplusplus
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}
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#endif
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#endif /* SW_WINSYS_H */
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