1/**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * All Rights Reserved.
5 *
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:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
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 VMWARE 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.
25 *
26 **************************************************************************/
27
28#ifndef I915_BATCHBUFFER_H
29#define I915_BATCHBUFFER_H
30
31#include "util/u_debug.h"
32#include "i915_winsys.h"
33
34struct i915_context;
35
36static inline size_t
37i915_winsys_batchbuffer_space(struct i915_winsys_batchbuffer *batch)
38{
39   return batch->size - (batch->ptr - batch->map);
40}
41
42static inline bool
43i915_winsys_batchbuffer_check(struct i915_winsys_batchbuffer *batch,
44                              size_t dwords)
45{
46   return dwords * 4 <= i915_winsys_batchbuffer_space(batch);
47}
48
49static inline void
50i915_winsys_batchbuffer_dword_unchecked(struct i915_winsys_batchbuffer *batch,
51                                        unsigned dword)
52{
53   *(unsigned *)batch->ptr = dword;
54   batch->ptr += 4;
55}
56
57static inline void
58i915_winsys_batchbuffer_float(struct i915_winsys_batchbuffer *batch, float f)
59{
60   union {
61      float f;
62      unsigned int ui;
63   } uif;
64   uif.f = f;
65   assert(i915_winsys_batchbuffer_space(batch) >= 4);
66   i915_winsys_batchbuffer_dword_unchecked(batch, uif.ui);
67}
68
69static inline void
70i915_winsys_batchbuffer_dword(struct i915_winsys_batchbuffer *batch,
71                              unsigned dword)
72{
73   assert(i915_winsys_batchbuffer_space(batch) >= 4);
74   i915_winsys_batchbuffer_dword_unchecked(batch, dword);
75}
76
77static inline void
78i915_winsys_batchbuffer_write(struct i915_winsys_batchbuffer *batch, void *data,
79                              size_t size)
80{
81   assert(i915_winsys_batchbuffer_space(batch) >= size);
82
83   memcpy(batch->ptr, data, size);
84   batch->ptr += size;
85}
86
87static inline bool
88i915_winsys_validate_buffers(struct i915_winsys_batchbuffer *batch,
89                             struct i915_winsys_buffer **buffers,
90                             int num_of_buffers)
91{
92   return batch->iws->validate_buffers(batch, buffers, num_of_buffers);
93}
94
95static inline int
96i915_winsys_batchbuffer_reloc(struct i915_winsys_batchbuffer *batch,
97                              struct i915_winsys_buffer *buffer,
98                              enum i915_winsys_buffer_usage usage,
99                              size_t offset, bool fenced)
100{
101   return batch->iws->batchbuffer_reloc(batch, buffer, usage, offset, fenced);
102}
103
104#endif
105