1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
31 * Screen, Adapter or GPU
33 * These are driver functions/facilities that are context independent.
41 #include "pipe/p_compiler.h"
42 #include "pipe/p_format.h"
43 #include "pipe/p_defines.h"
44 #include "pipe/p_video_enums.h"
55 struct pipe_fence_handle
;
62 * Gallium screen/adapter context. Basically everything
63 * hardware-specific that doesn't actually require a rendering
67 void (*destroy
)( struct pipe_screen
* );
69 const char *(*get_name
)( struct pipe_screen
* );
71 const char *(*get_vendor
)( struct pipe_screen
* );
74 * Query an integer-valued capability/parameter/limit
75 * \param param one of PIPE_CAP_x
77 int (*get_param
)( struct pipe_screen
*, enum pipe_cap param
);
80 * Query a float-valued capability/parameter/limit
81 * \param param one of PIPE_CAP_x
83 float (*get_paramf
)( struct pipe_screen
*, enum pipe_capf param
);
86 * Query a per-shader-stage integer-valued capability/parameter/limit
87 * \param param one of PIPE_CAP_x
89 int (*get_shader_param
)( struct pipe_screen
*, unsigned shader
, enum pipe_shader_cap param
);
92 * Query an integer-valued capability/parameter/limit for a codec/profile
93 * \param param one of PIPE_VIDEO_CAP_x
95 int (*get_video_param
)( struct pipe_screen
*,
96 enum pipe_video_profile profile
,
97 enum pipe_video_entrypoint entrypoint
,
98 enum pipe_video_cap param
);
101 * Query a compute-specific capability/parameter/limit.
102 * \param param one of PIPE_COMPUTE_CAP_x
103 * \param ret pointer to a preallocated buffer that will be
104 * initialized to the parameter value, or NULL.
105 * \return size in bytes of the parameter value that would be
108 int (*get_compute_param
)(struct pipe_screen
*,
109 enum pipe_compute_cap param
,
113 * Query a timestamp in nanoseconds. The returned value should match
114 * PIPE_QUERY_TIMESTAMP. This function returns immediately and doesn't
115 * wait for rendering to complete (which cannot be achieved with queries).
117 uint64_t (*get_timestamp
)(struct pipe_screen
*);
119 struct pipe_context
* (*context_create
)( struct pipe_screen
*,
123 * Check if the given pipe_format is supported as a texture or
125 * \param bindings bitmask of PIPE_BIND_*
127 boolean (*is_format_supported
)( struct pipe_screen
*,
128 enum pipe_format format
,
129 enum pipe_texture_target target
,
130 unsigned sample_count
,
134 * Check if the given pipe_format is supported as output for this codec/profile.
135 * \param profile profile to check, may also be PIPE_VIDEO_PROFILE_UNKNOWN
137 boolean (*is_video_format_supported
)( struct pipe_screen
*,
138 enum pipe_format format
,
139 enum pipe_video_profile profile
);
142 * Check if we can actually create the given resource (test the dimension,
143 * overall size, etc). Used to implement proxy textures.
144 * \return TRUE if size is OK, FALSE if too large.
146 boolean (*can_create_resource
)(struct pipe_screen
*screen
,
147 const struct pipe_resource
*templat
);
150 * Create a new texture object, using the given template info.
152 struct pipe_resource
* (*resource_create
)(struct pipe_screen
*,
153 const struct pipe_resource
*templat
);
156 * Create a texture from a winsys_handle. The handle is often created in
157 * another process by first creating a pipe texture and then calling
158 * resource_get_handle.
160 struct pipe_resource
* (*resource_from_handle
)(struct pipe_screen
*,
161 const struct pipe_resource
*templat
,
162 struct winsys_handle
*handle
);
165 * Get a winsys_handle from a texture. Some platforms/winsys requires
166 * that the texture is created with a special usage flag like
167 * DISPLAYTARGET or PRIMARY.
169 boolean (*resource_get_handle
)(struct pipe_screen
*,
170 struct pipe_resource
*tex
,
171 struct winsys_handle
*handle
);
174 void (*resource_destroy
)(struct pipe_screen
*,
175 struct pipe_resource
*pt
);
179 * Do any special operations to ensure frontbuffer contents are
180 * displayed, eg copy fake frontbuffer.
181 * \param winsys_drawable_handle an opaque handle that the calling context
184 void (*flush_frontbuffer
)( struct pipe_screen
*screen
,
185 struct pipe_resource
*resource
,
186 unsigned level
, unsigned layer
,
187 void *winsys_drawable_handle
);
191 /** Set ptr = fence, with reference counting */
192 void (*fence_reference
)( struct pipe_screen
*screen
,
193 struct pipe_fence_handle
**ptr
,
194 struct pipe_fence_handle
*fence
);
197 * Checks whether the fence has been signalled.
199 boolean (*fence_signalled
)( struct pipe_screen
*screen
,
200 struct pipe_fence_handle
*fence
);
203 * Wait for the fence to finish.
204 * \param timeout in nanoseconds (may be PIPE_TIMEOUT_INFINITE).
206 boolean (*fence_finish
)( struct pipe_screen
*screen
,
207 struct pipe_fence_handle
*fence
,
211 * Returns a driver-specific query.
213 * If \p info is NULL, the number of available queries is returned.
214 * Otherwise, the driver query at the specified \p index is returned
215 * in \p info. The function returns non-zero on success.
217 int (*get_driver_query_info
)(struct pipe_screen
*screen
,
219 struct pipe_driver_query_info
*info
);
228 #endif /* P_SCREEN_H */