| /************************************************************************** |
| * |
| * 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 |
| |
| |
| /** |
| * \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 for a buffer */ |
| struct pipe_buffer_handle; |
| |
| /** |
| * 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_region; |
| struct pipe_surface; |
| |
| /** Opaque type */ |
| struct pipe_buffer_handle; |
| |
| 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 *, ... ); |
| |
| |
| /** |
| * flags is bitmask of PIPE_SURFACE_FLAG_RENDER, PIPE_SURFACE_FLAG_TEXTURE |
| */ |
| struct pipe_region *(*region_alloc)(struct pipe_winsys *ws, |
| unsigned cpp, unsigned width, |
| unsigned height, unsigned flags); |
| |
| void (*region_release)(struct pipe_winsys *ws, struct pipe_region **r); |
| |
| |
| /** allocate a new surface (no context dependency) */ |
| struct pipe_surface *(*surface_alloc)(struct pipe_winsys *ws, |
| unsigned format); |
| |
| void (*surface_release)(struct pipe_winsys *ws, struct pipe_surface **s); |
| |
| /** |
| * The buffer manager is modeled after the dri_bufmgr interface, which |
| * in turn is modeled after the ARB_vertex_buffer_object extension, |
| * but this is the subset that gallium cares about. 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...). |
| */ |
| struct pipe_buffer_handle *(*buffer_create)(struct pipe_winsys *sws, |
| unsigned alignment ); |
| |
| /** Create a buffer that wraps user-space data */ |
| struct pipe_buffer_handle *(*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_FLAG_READ/WRITE. |
| */ |
| void *(*buffer_map)( struct pipe_winsys *sws, |
| struct pipe_buffer_handle *buf, |
| unsigned flags ); |
| |
| void (*buffer_unmap)( struct pipe_winsys *sws, |
| struct pipe_buffer_handle *buf ); |
| |
| /** Set ptr = buf, with reference counting */ |
| void (*buffer_reference)( struct pipe_winsys *sws, |
| struct pipe_buffer_handle **ptr, |
| struct pipe_buffer_handle *buf ); |
| |
| /** |
| * Create the data store of a buffer and optionally initialize it. |
| * |
| * 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. |
| */ |
| void (*buffer_data)(struct pipe_winsys *sws, |
| struct pipe_buffer_handle *buf, |
| unsigned size, const void *data, |
| unsigned usage); |
| |
| /** Modify some or all of the data contained in a buffer's data store */ |
| void (*buffer_subdata)(struct pipe_winsys *sws, |
| struct pipe_buffer_handle *buf, |
| unsigned long offset, |
| unsigned long size, |
| const void *data); |
| |
| /** Query some or all of the data contained in a buffer's data store */ |
| void (*buffer_get_subdata)(struct pipe_winsys *sws, |
| struct pipe_buffer_handle *buf, |
| unsigned long offset, |
| unsigned long size, |
| void *data); |
| |
| }; |
| |
| |
| |
| #endif /* P_WINSYS_H */ |