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 **************************************************************************/
28 #ifndef PIPE_CONTEXT_H
29 #define PIPE_CONTEXT_H
39 struct pipe_state_cache
;
41 /* Opaque driver handles:
46 * Gallium rendering context. Basically:
47 * - state setting functions
48 * - VBO drawing functions
53 struct pipe_winsys
*winsys
;
55 void *priv
; /** context private data (for DRI for example) */
57 void (*destroy
)( struct pipe_context
* );
62 /** type is one of PIPE_SURFACE, PIPE_TEXTURE, etc. */
63 boolean (*is_format_supported
)( struct pipe_context
*pipe
,
64 enum pipe_format format
, uint type
);
66 const char *(*get_name
)( struct pipe_context
*pipe
);
68 const char *(*get_vendor
)( struct pipe_context
*pipe
);
70 int (*get_param
)( struct pipe_context
*pipe
, int param
);
71 float (*get_paramf
)( struct pipe_context
*pipe
, int param
);
76 * Return false on fallbacks (temporary??)
78 boolean (*draw_arrays
)( struct pipe_context
*pipe
,
79 unsigned mode
, unsigned start
, unsigned count
);
81 boolean (*draw_elements
)( struct pipe_context
*pipe
,
82 struct pipe_buffer
*indexBuffer
,
84 unsigned mode
, unsigned start
, unsigned count
);
90 struct pipe_query
*(*create_query
)( struct pipe_context
*pipe
,
91 unsigned query_type
);
93 void (*destroy_query
)(struct pipe_context
*pipe
,
94 struct pipe_query
*q
);
96 void (*begin_query
)(struct pipe_context
*pipe
, struct pipe_query
*q
);
97 void (*end_query
)(struct pipe_context
*pipe
, struct pipe_query
*q
);
99 boolean (*get_query_result
)(struct pipe_context
*pipe
,
100 struct pipe_query
*q
,
107 void * (*create_blend_state
)(struct pipe_context
*,
108 const struct pipe_blend_state
*);
109 void (*bind_blend_state
)(struct pipe_context
*, void *);
110 void (*delete_blend_state
)(struct pipe_context
*, void *);
112 void * (*create_sampler_state
)(struct pipe_context
*,
113 const struct pipe_sampler_state
*);
114 void (*bind_sampler_state
)(struct pipe_context
*, unsigned unit
, void *);
115 void (*delete_sampler_state
)(struct pipe_context
*, void *);
117 void * (*create_rasterizer_state
)(struct pipe_context
*,
118 const struct pipe_rasterizer_state
*);
119 void (*bind_rasterizer_state
)(struct pipe_context
*, void *);
120 void (*delete_rasterizer_state
)(struct pipe_context
*, void *);
122 void * (*create_depth_stencil_alpha_state
)(struct pipe_context
*,
123 const struct pipe_depth_stencil_alpha_state
*);
124 void (*bind_depth_stencil_alpha_state
)(struct pipe_context
*, void *);
125 void (*delete_depth_stencil_alpha_state
)(struct pipe_context
*, void *);
127 void * (*create_fs_state
)(struct pipe_context
*,
128 const struct pipe_shader_state
*);
129 void (*bind_fs_state
)(struct pipe_context
*, void *);
130 void (*delete_fs_state
)(struct pipe_context
*, void *);
132 void * (*create_vs_state
)(struct pipe_context
*,
133 const struct pipe_shader_state
*);
134 void (*bind_vs_state
)(struct pipe_context
*, void *);
135 void (*delete_vs_state
)(struct pipe_context
*, void *);
137 /* The following look more properties than states.
138 * maybe combine a few of them into states or pass them
139 * in the bind calls to the state */
140 void (*set_blend_color
)( struct pipe_context
*,
141 const struct pipe_blend_color
* );
143 void (*set_clip_state
)( struct pipe_context
*,
144 const struct pipe_clip_state
* );
146 void (*set_constant_buffer
)( struct pipe_context
*,
147 uint shader
, uint index
,
148 const struct pipe_constant_buffer
*buf
);
150 void (*set_framebuffer_state
)( struct pipe_context
*,
151 const struct pipe_framebuffer_state
* );
153 void (*set_polygon_stipple
)( struct pipe_context
*,
154 const struct pipe_poly_stipple
* );
156 void (*set_scissor_state
)( struct pipe_context
*,
157 const struct pipe_scissor_state
* );
160 /* Currently a sampler is constrained to sample from a single texture:
162 void (*set_sampler_texture
)( struct pipe_context
*,
164 struct pipe_texture
* );
166 void (*set_viewport_state
)( struct pipe_context
*,
167 const struct pipe_viewport_state
* );
172 void (*set_vertex_buffer
)( struct pipe_context
*,
174 const struct pipe_vertex_buffer
* );
176 void (*set_vertex_element
)( struct pipe_context
*,
178 const struct pipe_vertex_element
* );
185 void (*surface_copy
)(struct pipe_context
*pipe
,
186 unsigned do_flip
, /*<< flip surface contents vertically */
187 struct pipe_surface
*dest
,
188 unsigned destx
, unsigned desty
,
189 struct pipe_surface
*src
, /* don't make this const -
191 unsigned srcx
, unsigned srcy
,
192 unsigned width
, unsigned height
);
194 void (*surface_fill
)(struct pipe_context
*pipe
,
195 struct pipe_surface
*dst
,
196 unsigned dstx
, unsigned dsty
,
197 unsigned width
, unsigned height
,
200 void (*clear
)(struct pipe_context
*pipe
,
201 struct pipe_surface
*ps
,
202 unsigned clearValue
);
208 struct pipe_texture
* (*texture_create
)(struct pipe_context
*pipe
,
209 const struct pipe_texture
*templat
);
211 void (*texture_release
)(struct pipe_context
*pipe
,
212 struct pipe_texture
**pt
);
215 * Called when texture data is changed.
216 * Note: we could pass some hints about which mip levels or cube faces
219 void (*texture_update
)(struct pipe_context
*pipe
,
220 struct pipe_texture
*texture
);
222 /** Get a surface which is a "view" into a texture */
223 struct pipe_surface
*(*get_tex_surface
)(struct pipe_context
*pipe
,
224 struct pipe_texture
*texture
,
225 unsigned face
, unsigned level
,
230 void (*flush
)( struct pipe_context
*pipe
,
239 #endif /* PIPE_CONTEXT_H */