1 /*
2 * Copyright © 2014 Broadcom
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24 #ifndef VC4_TILING_H
25 #define VC4_TILING_H
26
27 #include <stdbool.h>
28 #include <stdint.h>
29 #include "util/macros.h"
30 #include "util/u_cpu_detect.h"
31
32 /** Return the width in pixels of a 64-byte microtile. */
33 static inline uint32_t
vc4_utile_width(int cpp)34 vc4_utile_width(int cpp)
35 {
36 switch (cpp) {
37 case 1:
38 case 2:
39 return 8;
40 case 4:
41 return 4;
42 case 8:
43 return 2;
44 default:
45 unreachable("unknown cpp");
46 }
47 }
48
49 /** Return the height in pixels of a 64-byte microtile. */
50 static inline uint32_t
vc4_utile_height(int cpp)51 vc4_utile_height(int cpp)
52 {
53 switch (cpp) {
54 case 1:
55 return 8;
56 case 2:
57 case 4:
58 case 8:
59 return 4;
60 default:
61 unreachable("unknown cpp");
62 }
63 }
64
65 bool vc4_size_is_lt(uint32_t width, uint32_t height, int cpp) ATTRIBUTE_CONST;
66 void vc4_load_lt_image_base(void *dst, uint32_t dst_stride,
67 void *src, uint32_t src_stride,
68 int cpp, const struct pipe_box *box);
69 void vc4_store_lt_image_base(void *dst, uint32_t dst_stride,
70 void *src, uint32_t src_stride,
71 int cpp, const struct pipe_box *box);
72 void vc4_load_lt_image_neon(void *dst, uint32_t dst_stride,
73 void *src, uint32_t src_stride,
74 int cpp, const struct pipe_box *box);
75 void vc4_store_lt_image_neon(void *dst, uint32_t dst_stride,
76 void *src, uint32_t src_stride,
77 int cpp, const struct pipe_box *box);
78 void vc4_load_tiled_image(void *dst, uint32_t dst_stride,
79 void *src, uint32_t src_stride,
80 uint8_t tiling_format, int cpp,
81 const struct pipe_box *box);
82 void vc4_store_tiled_image(void *dst, uint32_t dst_stride,
83 void *src, uint32_t src_stride,
84 uint8_t tiling_format, int cpp,
85 const struct pipe_box *box);
86
87 static inline void
vc4_load_lt_image(void * dst,uint32_t dst_stride,void * src,uint32_t src_stride,int cpp,const struct pipe_box * box)88 vc4_load_lt_image(void *dst, uint32_t dst_stride,
89 void *src, uint32_t src_stride,
90 int cpp, const struct pipe_box *box)
91 {
92 #ifdef USE_ARM_ASM
93 if (util_get_cpu_caps()->has_neon) {
94 vc4_load_lt_image_neon(dst, dst_stride, src, src_stride,
95 cpp, box);
96 return;
97 }
98 #endif
99 vc4_load_lt_image_base(dst, dst_stride, src, src_stride,
100 cpp, box);
101 }
102
103 static inline void
vc4_store_lt_image(void * dst,uint32_t dst_stride,void * src,uint32_t src_stride,int cpp,const struct pipe_box * box)104 vc4_store_lt_image(void *dst, uint32_t dst_stride,
105 void *src, uint32_t src_stride,
106 int cpp, const struct pipe_box *box)
107 {
108 #ifdef USE_ARM_ASM
109 if (util_get_cpu_caps()->has_neon) {
110 vc4_store_lt_image_neon(dst, dst_stride, src, src_stride,
111 cpp, box);
112 return;
113 }
114 #endif
115
116 vc4_store_lt_image_base(dst, dst_stride, src, src_stride,
117 cpp, box);
118 }
119
120 #endif /* VC4_TILING_H */
121