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Diffstat (limited to 'src/gallium/include/pipe/p_winsys.h')
-rw-r--r-- | src/gallium/include/pipe/p_winsys.h | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/src/gallium/include/pipe/p_winsys.h b/src/gallium/include/pipe/p_winsys.h new file mode 100644 index 0000000..1e81eeb --- /dev/null +++ b/src/gallium/include/pipe/p_winsys.h @@ -0,0 +1,160 @@ + /************************************************************************** + * + * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the + * "Software"), to deal in the Software without restriction, including + * without limitation the rights to use, copy, modify, merge, publish, + * distribute, sub license, and/or sell copies of the Software, and to + * permit persons to whom the Software is furnished to do so, subject to + * the following conditions: + * + * The above copyright notice and this permission notice (including the + * next paragraph) shall be included in all copies or substantial portions + * of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. + * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR + * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, + * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE + * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + * + **************************************************************************/ + +#ifndef P_WINSYS_H +#define P_WINSYS_H + + +#include "p_format.h" + +/** + * \file + * This is the interface that Gallium3D requires any window system + * hosting it to implement. This is the only include file in Gallium3D + * which is public. + */ + + +/** Opaque type */ +struct pipe_fence_handle; + +struct pipe_surface; + + +/** + * Gallium3D drivers are (meant to be!) independent of both GL and the + * window system. The window system provides a buffer manager and a + * set of additional hooks for things like command buffer submission, + * etc. + * + * There clearly has to be some agreement between the window system + * driver and the hardware driver about the format of command buffers, + * etc. + */ +struct pipe_winsys +{ + /** Returns name of this winsys interface */ + const char *(*get_name)( struct pipe_winsys *sws ); + + /** + * Do any special operations to ensure frontbuffer contents are + * displayed, eg copy fake frontbuffer. + */ + void (*flush_frontbuffer)( struct pipe_winsys *sws, + struct pipe_surface *surf, + void *context_private ); + + /** Debug output */ + void (*printf)( struct pipe_winsys *sws, + const char *, ... ); + + + /** allocate a new surface (no context dependency) */ + struct pipe_surface *(*surface_alloc)(struct pipe_winsys *ws); + + /** + * Allocate storage for a pipe_surface. + * Returns 0 if succeeds. + */ + int (*surface_alloc_storage)(struct pipe_winsys *ws, + struct pipe_surface *surf, + unsigned width, unsigned height, + enum pipe_format format, + unsigned flags); + + void (*surface_release)(struct pipe_winsys *ws, struct pipe_surface **s); + + + /** + * Buffer management. Buffer attributes are mostly fixed over its lifetime. + * + * Remember that gallium gets to choose the interface it needs, and the + * window systems must then implement that interface (rather than the + * other way around...). + * + * usage is a bitmask of PIPE_BUFFER_USAGE_PIXEL/VERTEX/INDEX/CONSTANT. This + * usage argument is only an optimization hint, not a guarantee, therefore + * proper behavior must be observed in all circumstances. + */ + struct pipe_buffer *(*buffer_create)( struct pipe_winsys *sws, + unsigned alignment, + unsigned usage, + unsigned size ); + + /** Create a buffer that wraps user-space data */ + struct pipe_buffer *(*user_buffer_create)(struct pipe_winsys *sws, + void *ptr, + unsigned bytes); + + /** + * Map the entire data store of a buffer object into the client's address. + * flags is bitmask of PIPE_BUFFER_USAGE_CPU_READ/WRITE flags. + */ + void *(*buffer_map)( struct pipe_winsys *sws, + struct pipe_buffer *buf, + unsigned usage ); + + void (*buffer_unmap)( struct pipe_winsys *sws, + struct pipe_buffer *buf ); + + void (*buffer_destroy)( struct pipe_winsys *sws, + struct pipe_buffer *buf ); + + + /** Set ptr = fence, with reference counting */ + void (*fence_reference)( struct pipe_winsys *sws, + struct pipe_fence_handle **ptr, + struct pipe_fence_handle *fence ); + + /** + * Checks whether the fence has been signalled. + * + * The meaning of flag is pipe-driver specific. + * + * Returns zero if it has. + */ + int (*fence_signalled)( struct pipe_winsys *sws, + struct pipe_fence_handle *fence, + unsigned flag ); + + /** + * Wait for the fence to finish. + * + * The meaning of flag is pipe-driver specific. + * + * Returns zero on success. + */ + int (*fence_finish)( struct pipe_winsys *sws, + struct pipe_fence_handle *fence, + unsigned flag ); + + +}; + + + +#endif /* P_WINSYS_H */ |