-
Notifications
You must be signed in to change notification settings - Fork 106
/
blitbuffer.h
176 lines (156 loc) · 8.61 KB
/
blitbuffer.h
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
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
/*
KOReader: blitbuffer implementation for jit-disabled platforms
Copyright (C) 2011 Hans-Werner Hilse <[email protected]>
2017 Huang Xin <[email protected]>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _BLITBUFFER_H
#define _BLITBUFFER_H
#include <stddef.h>
#include <stdint.h>
// Symbol visibility
#define DLL_PUBLIC __attribute__((visibility("default")))
#define DLL_LOCAL __attribute__((visibility("hidden")))
// In C++, restrict is a compiler extension. Choose the syntax supported by GCC, Clang & MSVC.
#ifdef __cplusplus
# define restrict __restrict
#endif
// Helper macros
#define MASK_INVERSE 0x02
#define SHIFT_INVERSE 1
#define MASK_ROTATED 0x0C
#define SHIFT_ROTATED 2
#define MASK_TYPE 0xF0
#define SHIFT_TYPE 4
#define TYPE_BB4 0
#define TYPE_BB8 1
#define TYPE_BB8A 2
#define TYPE_BBRGB16 3
#define TYPE_BBRGB24 4
#define TYPE_BBRGB32 5
#define GET_BB_INVERSE(bb) ((MASK_INVERSE & bb->config) >> SHIFT_INVERSE)
#define GET_BB_ROTATION(bb) ((MASK_ROTATED & bb->config) >> SHIFT_ROTATED)
#define GET_BB_TYPE(bb) (((MASK_TYPE & bb->config) >> SHIFT_TYPE))
// Types
typedef struct Color8 {
uint8_t a;
} Color8;
typedef struct Color8A {
uint8_t a;
uint8_t alpha;
} Color8A;
typedef struct ColorRGB16 {
uint16_t v;
} ColorRGB16;
typedef struct ColorRGB24 {
uint8_t r;
uint8_t g;
uint8_t b;
} ColorRGB24;
typedef struct ColorRGB32 {
uint8_t r;
uint8_t g;
uint8_t b;
uint8_t alpha;
} ColorRGB32;
typedef struct BlitBuffer {
unsigned int w;
unsigned int pixel_stride; // nb of pixels from the start of a line to the start of next line
unsigned int h;
size_t stride; // nb of bytes from the start of a line to the start of next line
uint8_t * restrict data;
uint8_t config;
} BlitBuffer;
typedef struct BlitBuffer8 {
unsigned int w;
unsigned int pixel_stride;
unsigned int h;
size_t stride;
Color8 * restrict data;
uint8_t config;
} BlitBuffer8;
typedef struct BlitBuffer8A {
unsigned int w;
unsigned int pixel_stride;
unsigned int h;
size_t stride;
Color8A * restrict data;
uint8_t config;
} BlitBuffer8A;
typedef struct BlitBufferRGB16 {
unsigned int w;
unsigned int pixel_stride;
unsigned int h;
size_t stride;
ColorRGB16 * restrict data;
uint8_t config;
} BlitBufferRGB16;
typedef struct BlitBufferRGB24 {
unsigned int w;
unsigned int pixel_stride;
unsigned int h;
size_t stride;
ColorRGB24 * restrict data;
uint8_t config;
} BlitBufferRGB24;
typedef struct BlitBufferRGB32 {
unsigned int w;
unsigned int pixel_stride;
unsigned int h;
size_t stride;
ColorRGB32 * restrict data;
uint8_t config;
} BlitBufferRGB32;
DLL_PUBLIC void BB_fill(BlitBuffer * restrict bb, uint8_t v);
DLL_PUBLIC void BB_fill_rect(BlitBuffer * restrict bb, unsigned int x, unsigned int y, unsigned int w, unsigned int h, uint8_t v);
DLL_PUBLIC void BB_fill_rect_RGB32(BlitBuffer * restrict bb, unsigned int x, unsigned int y, unsigned int w, unsigned int h, const ColorRGB32 * restrict color);
DLL_PUBLIC void BB_blend_rect(BlitBuffer * restrict bb, unsigned int x, unsigned int y, unsigned int w, unsigned int h, const Color8A * restrict color);
DLL_PUBLIC void BB_blend_RGB32_over_rect(BlitBuffer * restrict bb, unsigned int x, unsigned int y, unsigned int w, unsigned int h, const ColorRGB32 * restrict color);
DLL_PUBLIC void BB_blend_RGB_multiply_rect(BlitBuffer * restrict bb, unsigned int x, unsigned int y, unsigned int w, unsigned int h, const ColorRGB24 * restrict color);
DLL_PUBLIC void BB_blend_RGB32_multiply_rect(BlitBuffer * restrict bb, unsigned int x, unsigned int y, unsigned int w, unsigned int h, const ColorRGB32 * restrict color);
DLL_PUBLIC void BB_invert_rect(BlitBuffer * restrict bb, unsigned int x, unsigned int y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_hatch_rect(BlitBuffer * restrict bb, unsigned int x, unsigned int y, unsigned int w, unsigned int h, unsigned int stripe_width, const Color8 * restrict color, uint8_t alpha);
DLL_PUBLIC void BB_blit_to_BB8(const BlitBuffer * restrict src, BlitBuffer * restrict dst,
unsigned int dest_x, unsigned int dest_y, unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_dither_blit_to_BB8(const BlitBuffer * restrict src, BlitBuffer * restrict dst,
unsigned int dest_x, unsigned int dest_y, unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_blit_to_BB8A(const BlitBuffer * restrict src, BlitBuffer * restrict dst,
unsigned int dest_x, unsigned int dest_y, unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_blit_to_BB16(const BlitBuffer * restrict src, BlitBuffer * restrict dst,
unsigned int dest_x, unsigned int dest_y, unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_blit_to_BB24(const BlitBuffer * restrict src, BlitBuffer * restrict dst,
unsigned int dest_x, unsigned int dest_y, unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_blit_to_BB32(const BlitBuffer * restrict src, BlitBuffer * restrict dst,
unsigned int dest_x, unsigned int dest_y, unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_blit_to(const BlitBuffer * restrict source, BlitBuffer * restrict dest, unsigned int dest_x, unsigned int dest_y,
unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_dither_blit_to(const BlitBuffer * restrict source, BlitBuffer * restrict dest, unsigned int dest_x, unsigned int dest_y,
unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_add_blit_from(BlitBuffer * restrict dest, const BlitBuffer * restrict source, unsigned int dest_x, unsigned int dest_y,
unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h, uint8_t alpha);
DLL_PUBLIC void BB_alpha_blit_from(BlitBuffer * restrict dest, const BlitBuffer * restrict source, unsigned int dest_x, unsigned int dest_y,
unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_dither_alpha_blit_from(BlitBuffer * restrict dest, const BlitBuffer * restrict source, unsigned int dest_x, unsigned int dest_y,
unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_pmulalpha_blit_from(BlitBuffer * restrict dest, const BlitBuffer * restrict source, unsigned int dest_x, unsigned int dest_y,
unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_dither_pmulalpha_blit_from(BlitBuffer * restrict dest, const BlitBuffer * restrict source, unsigned int dest_x, unsigned int dest_y,
unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_invert_blit_from(BlitBuffer * restrict dest, const BlitBuffer * restrict source, unsigned int dest_x, unsigned int dest_y,
unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h);
DLL_PUBLIC void BB_color_blit_from(BlitBuffer * restrict dest, const BlitBuffer * restrict source, unsigned int dest_x, unsigned int dest_y,
unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h, const Color8A * restrict color);
DLL_PUBLIC void BB_color_blit_from_RGB32(BlitBuffer * restrict dest, const BlitBuffer * restrict source, unsigned int dest_x, unsigned int dest_y,
unsigned int offs_x, unsigned int offs_y, unsigned int w, unsigned int h, const ColorRGB32 * restrict color);
DLL_PUBLIC void BB_paint_rounded_corner(BlitBuffer * restrict bb, unsigned int off_x, unsigned int off_y, unsigned int w, unsigned int h,
unsigned int bw, unsigned int r, uint8_t c, int anti_aliasing);
#endif