1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*
* Copyright (C) 2021-2022 libass contributors
*
* This file is part of libass.
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef LIBASS_BITMAP_ENGINE_H
#define LIBASS_BITMAP_ENGINE_H
#include <stddef.h>
#include <stdint.h>
struct segment;
typedef void FillSolidTileFunc(uint8_t *buf, ptrdiff_t stride, int set);
typedef void FillHalfplaneTileFunc(uint8_t *buf, ptrdiff_t stride,
int32_t a, int32_t b, int64_t c, int32_t scale);
typedef void FillGenericTileFunc(uint8_t *buf, ptrdiff_t stride,
const struct segment *line, size_t n_lines,
int winding);
typedef void MergeTileFunc(uint8_t *buf, ptrdiff_t stride, const uint8_t *tile);
typedef void BitmapBlendFunc(uint8_t *dst, intptr_t dst_stride,
uint8_t *src, intptr_t src_stride,
intptr_t width, intptr_t height);
typedef void BitmapMulFunc(uint8_t *dst, intptr_t dst_stride,
uint8_t *src1, intptr_t src1_stride,
uint8_t *src2, intptr_t src2_stride,
intptr_t width, intptr_t height);
typedef void BeBlurFunc(uint8_t *buf, intptr_t stride,
intptr_t width, intptr_t height, uint16_t *tmp);
// intermediate bitmaps represented as sets of verical stripes of int16_t[alignment / 2]
typedef void Convert8to16Func(int16_t *dst, const uint8_t *src, ptrdiff_t src_stride,
uintptr_t width, uintptr_t height);
typedef void Convert16to8Func(uint8_t *dst, ptrdiff_t dst_stride, const int16_t *src,
uintptr_t width, uintptr_t height);
typedef void FilterFunc(int16_t *dst, const int16_t *src,
uintptr_t src_width, uintptr_t src_height);
typedef void ParamFilterFunc(int16_t *dst, const int16_t *src,
uintptr_t src_width, uintptr_t src_height,
const int16_t *param);
#define C_ALIGN_ORDER 5
typedef struct {
int align_order; // log2(alignment)
// rasterizer functions
int tile_order; // log2(tile_size)
FillSolidTileFunc *fill_solid;
FillHalfplaneTileFunc *fill_halfplane;
FillGenericTileFunc *fill_generic;
MergeTileFunc *merge_tile;
// blend functions
BitmapBlendFunc *add_bitmaps, *imul_bitmaps;
BitmapMulFunc *mul_bitmaps;
// be blur function
BeBlurFunc *be_blur;
// gaussian blur functions
Convert8to16Func *stripe_unpack;
Convert16to8Func *stripe_pack;
FilterFunc *shrink_horz, *shrink_vert;
FilterFunc *expand_horz, *expand_vert;
ParamFilterFunc *blur_horz[5], *blur_vert[5];
} BitmapEngine;
enum {
ASS_CPU_FLAG_NONE = 0x0000,
#if ARCH_X86
ASS_CPU_FLAG_X86_SSE2 = 0x0001,
ASS_CPU_FLAG_X86_AVX2 = 0x0002,
#endif
ASS_CPU_FLAG_ALL = 0x0FFF,
};
unsigned ass_get_cpu_flags(unsigned mask);
const BitmapEngine *ass_bitmap_engine_init(unsigned mask);
#endif /* LIBASS_BITMAP_ENGINE_H */
|
