1/**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
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 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.
25 *
26 **************************************************************************/
27
28#ifndef I915_BATCHBUFFER_H
29#define I915_BATCHBUFFER_H
30
31#include "i915_winsys.h"
32#include "util/u_debug.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 boolean
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,
59                              float f)
60{
61   union { float f; unsigned int ui; } uif;
62   uif.f = f;
63   assert (i915_winsys_batchbuffer_space(batch) >= 4);
64   i915_winsys_batchbuffer_dword_unchecked(batch, uif.ui);
65}
66
67static INLINE void
68i915_winsys_batchbuffer_dword(struct i915_winsys_batchbuffer *batch,
69                              unsigned dword)
70{
71   assert (i915_winsys_batchbuffer_space(batch) >= 4);
72   i915_winsys_batchbuffer_dword_unchecked(batch, dword);
73}
74
75static INLINE void
76i915_winsys_batchbuffer_write(struct i915_winsys_batchbuffer *batch,
77                              void *data,
78                              size_t size)
79{
80   assert (i915_winsys_batchbuffer_space(batch) >= size);
81
82   memcpy(batch->ptr, data, size);
83   batch->ptr += size;
84}
85
86static INLINE boolean
87i915_winsys_validate_buffers(struct i915_winsys_batchbuffer *batch,
88                             struct i915_winsys_buffer **buffers,
89                             int num_of_buffers)
90{
91   return batch->iws->validate_buffers(batch, buffers, num_of_buffers);
92}
93
94static INLINE int
95i915_winsys_batchbuffer_reloc(struct i915_winsys_batchbuffer *batch,
96                              struct i915_winsys_buffer *buffer,
97                              enum i915_winsys_buffer_usage usage,
98                              size_t offset, boolean fenced)
99{
100   return batch->iws->batchbuffer_reloc(batch, buffer, usage, offset, fenced);
101}
102
103#endif
104