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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 "i915_winsys.h"
32 #include "util/u_debug.h"
33 
34 struct i915_context;
35 
36 static inline size_t
i915_winsys_batchbuffer_space(struct i915_winsys_batchbuffer * batch)37 i915_winsys_batchbuffer_space(struct i915_winsys_batchbuffer *batch)
38 {
39    return batch->size - (batch->ptr - batch->map);
40 }
41 
42 static inline boolean
i915_winsys_batchbuffer_check(struct i915_winsys_batchbuffer * batch,size_t dwords)43 i915_winsys_batchbuffer_check(struct i915_winsys_batchbuffer *batch,
44                               size_t dwords)
45 {
46    return dwords * 4 <= i915_winsys_batchbuffer_space(batch);
47 }
48 
49 static inline void
i915_winsys_batchbuffer_dword_unchecked(struct i915_winsys_batchbuffer * batch,unsigned dword)50 i915_winsys_batchbuffer_dword_unchecked(struct i915_winsys_batchbuffer *batch,
51                                         unsigned dword)
52 {
53    *(unsigned *)batch->ptr = dword;
54    batch->ptr += 4;
55 }
56 
57 static inline void
i915_winsys_batchbuffer_float(struct i915_winsys_batchbuffer * batch,float f)58 i915_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 
67 static inline void
i915_winsys_batchbuffer_dword(struct i915_winsys_batchbuffer * batch,unsigned dword)68 i915_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 
75 static inline void
i915_winsys_batchbuffer_write(struct i915_winsys_batchbuffer * batch,void * data,size_t size)76 i915_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 
86 static inline boolean
i915_winsys_validate_buffers(struct i915_winsys_batchbuffer * batch,struct i915_winsys_buffer ** buffers,int num_of_buffers)87 i915_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 
94 static inline int
i915_winsys_batchbuffer_reloc(struct i915_winsys_batchbuffer * batch,struct i915_winsys_buffer * buffer,enum i915_winsys_buffer_usage usage,size_t offset,boolean fenced)95 i915_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