1/**************************************************************************
2 *
3 * Copyright 2009 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 LP_BLD_FORMAT_H
29#define LP_BLD_FORMAT_H
30
31
32/**
33 * @file
34 * Pixel format helpers.
35 */
36
37#include "gallivm/lp_bld.h"
38#include "gallivm/lp_bld_init.h"
39
40#include "pipe/p_format.h"
41
42struct util_format_description;
43struct lp_type;
44struct lp_build_context;
45
46
47#define LP_BUILD_FORMAT_CACHE_DEBUG 0
48/*
49 * Block cache
50 *
51 * Optional block cache to be used when unpacking big pixel blocks.
52 * Must be a power of 2
53 */
54
55#define LP_BUILD_FORMAT_CACHE_SIZE 128
56
57/*
58 * Note: cache_data needs 16 byte alignment.
59 */
60struct lp_build_format_cache
61{
62   PIPE_ALIGN_VAR(16) uint32_t cache_data[LP_BUILD_FORMAT_CACHE_SIZE][4][4];
63   uint64_t cache_tags[LP_BUILD_FORMAT_CACHE_SIZE];
64#if LP_BUILD_FORMAT_CACHE_DEBUG
65   uint64_t cache_access_total;
66   uint64_t cache_access_miss;
67#endif
68};
69
70
71enum {
72   LP_BUILD_FORMAT_CACHE_MEMBER_DATA = 0,
73   LP_BUILD_FORMAT_CACHE_MEMBER_TAGS,
74#if LP_BUILD_FORMAT_CACHE_DEBUG
75   LP_BUILD_FORMAT_CACHE_MEMBER_ACCESS_TOTAL,
76   LP_BUILD_FORMAT_CACHE_MEMBER_ACCESS_MISS,
77#endif
78   LP_BUILD_FORMAT_CACHE_MEMBER_COUNT
79};
80
81
82LLVMTypeRef
83lp_build_format_cache_type(struct gallivm_state *gallivm);
84
85
86/*
87 * AoS
88 */
89
90LLVMValueRef
91lp_build_format_swizzle_aos(const struct util_format_description *desc,
92                            struct lp_build_context *bld,
93                            LLVMValueRef unswizzled);
94
95LLVMValueRef
96lp_build_pack_rgba_aos(struct gallivm_state *gallivm,
97                       const struct util_format_description *desc,
98                       LLVMValueRef rgba);
99
100LLVMValueRef
101lp_build_fetch_rgba_aos(struct gallivm_state *gallivm,
102                        const struct util_format_description *format_desc,
103                        struct lp_type type,
104                        boolean aligned,
105                        LLVMValueRef base_ptr,
106                        LLVMValueRef offset,
107                        LLVMValueRef i,
108                        LLVMValueRef j,
109                        LLVMValueRef cache);
110
111LLVMValueRef
112lp_build_fetch_rgba_aos_array(struct gallivm_state *gallivm,
113                        const struct util_format_description *format_desc,
114                        struct lp_type type,
115                        LLVMValueRef base_ptr,
116                        LLVMValueRef offset);
117
118
119/*
120 * SoA
121 */
122
123void
124lp_build_format_swizzle_soa(const struct util_format_description *format_desc,
125                            struct lp_build_context *bld,
126                            const LLVMValueRef unswizzled[4],
127                            LLVMValueRef swizzled_out[4]);
128
129void
130lp_build_unpack_rgba_soa(struct gallivm_state *gallivm,
131                         const struct util_format_description *format_desc,
132                         struct lp_type type,
133                         LLVMValueRef packed,
134                         LLVMValueRef rgba_out[4]);
135
136void
137lp_build_rgba8_to_fi32_soa(struct gallivm_state *gallivm,
138                          struct lp_type dst_type,
139                          LLVMValueRef packed,
140                          LLVMValueRef *rgba);
141
142void
143lp_build_fetch_rgba_soa(struct gallivm_state *gallivm,
144                        const struct util_format_description *format_desc,
145                        struct lp_type type,
146                        boolean aligned,
147                        LLVMValueRef base_ptr,
148                        LLVMValueRef offsets,
149                        LLVMValueRef i,
150                        LLVMValueRef j,
151                        LLVMValueRef cache,
152                        LLVMValueRef rgba_out[4]);
153
154/*
155 * YUV
156 */
157
158LLVMValueRef
159lp_build_fetch_subsampled_rgba_aos(struct gallivm_state *gallivm,
160                                   const struct util_format_description *format_desc,
161                                   unsigned n,
162                                   LLVMValueRef base_ptr,
163                                   LLVMValueRef offset,
164                                   LLVMValueRef i,
165                                   LLVMValueRef j);
166
167
168/*
169 * S3TC
170 */
171
172LLVMValueRef
173lp_build_fetch_s3tc_rgba_aos(struct gallivm_state *gallivm,
174                             const struct util_format_description *format_desc,
175                             unsigned n,
176                             LLVMValueRef base_ptr,
177                             LLVMValueRef offset,
178                             LLVMValueRef i,
179                             LLVMValueRef j,
180                             LLVMValueRef cache);
181
182
183/*
184 * special float formats
185 */
186
187LLVMValueRef
188lp_build_float_to_smallfloat(struct gallivm_state *gallivm,
189                             struct lp_type i32_type,
190                             LLVMValueRef src,
191                             unsigned mantissa_bits,
192                             unsigned exponent_bits,
193                             unsigned mantissa_start,
194                             boolean has_sign);
195
196LLVMValueRef
197lp_build_smallfloat_to_float(struct gallivm_state *gallivm,
198                             struct lp_type f32_type,
199                             LLVMValueRef src,
200                             unsigned mantissa_bits,
201                             unsigned exponent_bits,
202                             unsigned mantissa_start,
203                             boolean has_sign);
204
205LLVMValueRef
206lp_build_float_to_r11g11b10(struct gallivm_state *gallivm,
207                            LLVMValueRef *src);
208
209void
210lp_build_r11g11b10_to_float(struct gallivm_state *gallivm,
211                            LLVMValueRef src,
212                            LLVMValueRef *dst);
213
214void
215lp_build_rgb9e5_to_float(struct gallivm_state *gallivm,
216                         LLVMValueRef src,
217                         LLVMValueRef *dst);
218
219LLVMValueRef
220lp_build_float_to_srgb_packed(struct gallivm_state *gallivm,
221                              const struct util_format_description *dst_fmt,
222                              struct lp_type src_type,
223                              LLVMValueRef *src);
224
225LLVMValueRef
226lp_build_srgb_to_linear(struct gallivm_state *gallivm,
227                        struct lp_type src_type,
228                        unsigned chan_bits,
229                        LLVMValueRef src);
230
231
232#endif /* !LP_BLD_FORMAT_H */
233