1 /**************************************************************************
3 * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA
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 SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
18 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
19 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
20 * USE OR OTHER DEALINGS IN THE SOFTWARE.
22 * The above copyright notice and this permission notice (including the
23 * next paragraph) shall be included in all copies or substantial portions
27 **************************************************************************/
29 * Authors: Keith Whitwell <keithw-at-tungstengraphics-dot-com>
34 #include "ws_dri_bufpool.h"
35 #include "ws_dri_bufmgr.h"
37 #include "intel_context.h"
38 #include "intel_batchbuffer.h"
39 #include "intel_winsys.h"
41 #include "pipe/p_util.h"
42 #include "pipe/p_winsys.h"
43 #include "i915simple/i915_winsys.h"
44 #include "i915simple/i915_screen.h"
47 struct intel_i915_winsys
{
48 struct i915_winsys winsys
; /**< batch buffer funcs */
49 struct pipe_winsys
*pws
;
50 struct intel_context
*intel
;
54 /* Turn a i915simple winsys into an intel/i915simple winsys:
56 static inline struct intel_i915_winsys
*
57 intel_i915_winsys( struct i915_winsys
*sws
)
59 return (struct intel_i915_winsys
*)sws
;
63 /* Simple batchbuffer interface:
66 static unsigned *intel_i915_batch_start( struct i915_winsys
*sws
,
70 struct intel_context
*intel
= intel_i915_winsys(sws
)->intel
;
74 if (intel_batchbuffer_space( intel
->batch
) >= dwords
* 4) {
75 /* XXX: Hmm, the driver can't really do much with this pointer:
77 return (unsigned *)intel
->batch
->ptr
;
83 static void intel_i915_batch_dword( struct i915_winsys
*sws
,
86 struct intel_context
*intel
= intel_i915_winsys(sws
)->intel
;
87 intel_batchbuffer_emit_dword( intel
->batch
, dword
);
90 static void intel_i915_batch_reloc( struct i915_winsys
*sws
,
91 struct pipe_buffer
*buf
,
92 unsigned access_flags
,
95 struct intel_context
*intel
= intel_i915_winsys(sws
)->intel
;
96 unsigned flags
= DRM_BO_FLAG_MEM_TT
;
97 unsigned mask
= DRM_BO_MASK_MEM
;
99 if (access_flags
& I915_BUFFER_ACCESS_WRITE
) {
100 flags
|= DRM_BO_FLAG_WRITE
;
101 mask
|= DRM_BO_FLAG_WRITE
;
104 if (access_flags
& I915_BUFFER_ACCESS_READ
) {
105 flags
|= DRM_BO_FLAG_READ
;
106 mask
|= DRM_BO_FLAG_READ
;
110 intel_batchbuffer_emit_reloc( intel
->batch
,
115 intel_offset_relocation( intel
->batch
,
125 static void intel_i915_batch_flush( struct i915_winsys
*sws
,
126 struct pipe_fence_handle
**fence
)
128 struct intel_i915_winsys
*iws
= intel_i915_winsys(sws
);
129 struct intel_context
*intel
= iws
->intel
;
131 struct _DriFenceObject
*dri
;
132 struct pipe_fence_handle
*pipe
;
138 fu
.dri
= intel_batchbuffer_flush( intel
->batch
);
150 driFenceUnReference(&fu
.dri
);
157 * Create i915 hardware rendering context.
159 struct pipe_context
*
160 intel_create_i915simple( struct intel_context
*intel
,
161 struct pipe_winsys
*winsys
)
163 struct intel_i915_winsys
*iws
= CALLOC_STRUCT( intel_i915_winsys
);
164 struct pipe_screen
*screen
;
166 /* Fill in this struct with callbacks that i915simple will need to
167 * communicate with the window system, buffer manager, etc.
169 iws
->winsys
.batch_start
= intel_i915_batch_start
;
170 iws
->winsys
.batch_dword
= intel_i915_batch_dword
;
171 iws
->winsys
.batch_reloc
= intel_i915_batch_reloc
;
172 iws
->winsys
.batch_flush
= intel_i915_batch_flush
;
176 screen
= i915_create_screen(winsys
, intel
->intelScreen
->deviceID
);
178 /* Create the i915simple context:
180 return i915_create_context( screen
,