1 /**************************************************************************
3 * Copyright © 2009 Jakob Bornecrantz
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
24 **************************************************************************/
29 #include "pipe/p_compiler.h"
32 struct pipe_fence_handle
;
34 /* This currently just wraps dri_bo:
36 struct brw_winsys_buffer
{
37 struct brw_winsys_screen
*sws
;
43 enum brw_buffer_usage
{
44 I915_GEM_DOMAIN_RENDER
,
45 I915_GEM_DOMAIN_SAMPLER
,
46 I915_GEM_DOMAIN_VERTEX
,
47 I915_GEM_DOMAIN_INSTRUCTION
,
50 /* XXX: migrate from domains to explicit usage cases, eg below:
54 BRW_USAGE_RENDER
= 0x01,
55 BRW_USAGE_SAMPLER
= 0x02,
56 BRW_USAGE_2D_TARGET
= 0x04,
57 BRW_USAGE_2D_SOURCE
= 0x08,
59 BRW_USAGE_VERTEX
= 0x10,
64 BRW_BUFFER_TYPE_TEXTURE
,
65 BRW_BUFFER_TYPE_SCANOUT
, /**< a texture used for scanning out from */
66 BRW_BUFFER_TYPE_VERTEX
,
67 BRW_BUFFER_TYPE_CURBE
,
68 BRW_BUFFER_TYPE_QUERY
,
69 BRW_BUFFER_TYPE_SHADER_CONSTANTS
,
70 BRW_BUFFER_TYPE_WM_SCRATCH
,
71 BRW_BUFFER_TYPE_BATCH
,
75 /* AKA winsys context:
77 struct brw_batchbuffer
{
79 struct brw_winsys
*iws
;
80 struct brw_winsys_buffer
*buf
;
83 * Values exported to speed up the writing the batchbuffer,
84 * instead of having to go trough a accesor function for
101 struct brw_winsys_screen
{
104 * Batchbuffer functions.
108 * Create a new batchbuffer.
110 struct brw_batchbuffer
*(*batchbuffer_create
)(struct brw_winsys_screen
*iws
);
113 * Emit a relocation to a buffer.
114 * Target position in batchbuffer is the same as ptr.
116 int (*batchbuffer_reloc
)(struct brw_batchbuffer
*batch
,
118 struct brw_winsys_buffer
*reloc
,
120 enum brw_buffer_usage usage
);
123 * Flush a bufferbatch.
125 void (*batchbuffer_flush
)(struct brw_batchbuffer
*batch
,
126 struct pipe_fence_handle
**fence
);
129 * Destroy a batchbuffer.
131 void (*batchbuffer_destroy
)(struct brw_batchbuffer
*batch
);
143 struct brw_winsys_buffer
*(*bo_alloc
)( struct brw_winsys_screen
*sws
,
144 enum brw_buffer_type type
,
146 unsigned alignment
);
148 /* Reference and unreference buffers:
150 void (*bo_reference
)( struct brw_winsys_buffer
*buffer
);
151 void (*bo_unreference
)( struct brw_winsys_buffer
*buffer
);
152 void (*bo_emit_reloc
)( struct brw_winsys_buffer
*buffer
,
157 struct brw_winsys_buffer
*b2
);
159 void (*bo_subdata
)(struct brw_winsys_buffer
*dst
,
167 void *(*buffer_map
)(struct brw_winsys
*iws
,
168 struct brw_winsys_buffer
*buffer
,
174 void (*buffer_unmap
)(struct brw_winsys
*iws
,
175 struct brw_winsys_buffer
*buffer
);
177 void (*buffer_destroy
)(struct brw_winsys
*iws
,
178 struct brw_winsys_buffer
*buffer
);
187 * Reference fence and set ptr to fence.
189 void (*fence_reference
)(struct brw_winsys
*iws
,
190 struct pipe_fence_handle
**ptr
,
191 struct pipe_fence_handle
*fence
);
194 * Check if a fence has finished.
196 int (*fence_signalled
)(struct brw_winsys
*iws
,
197 struct pipe_fence_handle
*fence
);
200 * Wait on a fence to finish.
202 int (*fence_finish
)(struct brw_winsys
*iws
,
203 struct pipe_fence_handle
*fence
);
208 * Destroy the winsys.
210 void (*destroy
)(struct brw_winsys
*iws
);
215 * Create brw pipe_screen.
217 struct pipe_screen
*brw_create_screen(struct brw_winsys
*iws
, unsigned pci_id
);
220 * Create a brw pipe_context.
222 struct pipe_context
*brw_create_context(struct pipe_screen
*screen
);
225 * Get the brw_winsys buffer backing the texture.
230 boolean
brw_get_texture_buffer_brw(struct pipe_texture
*texture
,
231 struct brw_winsys_buffer
**buffer
,
235 * Wrap a brw_winsys buffer with a texture blanket.
239 struct pipe_texture
* brw_texture_blanket(struct pipe_screen
*screen
,
240 struct pipe_texture
*tmplt
,
242 struct brw_winsys_buffer
*buffer
);