33 #define GLYPH_COORD_VECT_SIZE 16
34 #define PALETTE_SIZE 256
35 #define PALETTE_DELTA 768
38 0, 1, 2, 3, 3, 3, 3, 2, 1, 0, 0, 0, 1, 2, 2, 1
42 0, 0, 0, 0, 1, 2, 3, 3, 3, 3, 2, 1, 1, 1, 2, 2
46 0, 2, 5, 7, 7, 7, 7, 7, 7, 5, 2, 0, 0, 0, 0, 0
50 0, 0, 0, 0, 1, 3, 4, 6, 7, 7, 7, 7, 6, 4, 3, 1
54 { 0, 0 }, { -1, -43 }, { 6, -43 }, { -9, -42 }, { 13, -41 },
55 { -16, -40 }, { 19, -39 }, { -23, -36 }, { 26, -34 }, { -2, -33 },
56 { 4, -33 }, { -29, -32 }, { -9, -32 }, { 11, -31 }, { -16, -29 },
57 { 32, -29 }, { 18, -28 }, { -34, -26 }, { -22, -25 }, { -1, -25 },
58 { 3, -25 }, { -7, -24 }, { 8, -24 }, { 24, -23 }, { 36, -23 },
59 { -12, -22 }, { 13, -21 }, { -38, -20 }, { 0, -20 }, { -27, -19 },
60 { -4, -19 }, { 4, -19 }, { -17, -18 }, { -8, -17 }, { 8, -17 },
61 { 18, -17 }, { 28, -17 }, { 39, -17 }, { -12, -15 }, { 12, -15 },
62 { -21, -14 }, { -1, -14 }, { 1, -14 }, { -41, -13 }, { -5, -13 },
63 { 5, -13 }, { 21, -13 }, { -31, -12 }, { -15, -11 }, { -8, -11 },
64 { 8, -11 }, { 15, -11 }, { -2, -10 }, { 1, -10 }, { 31, -10 },
65 { -23, -9 }, { -11, -9 }, { -5, -9 }, { 4, -9 }, { 11, -9 },
66 { 42, -9 }, { 6, -8 }, { 24, -8 }, { -18, -7 }, { -7, -7 },
67 { -3, -7 }, { -1, -7 }, { 2, -7 }, { 18, -7 }, { -43, -6 },
68 { -13, -6 }, { -4, -6 }, { 4, -6 }, { 8, -6 }, { -33, -5 },
69 { -9, -5 }, { -2, -5 }, { 0, -5 }, { 2, -5 }, { 5, -5 },
70 { 13, -5 }, { -25, -4 }, { -6, -4 }, { -3, -4 }, { 3, -4 },
71 { 9, -4 }, { -19, -3 }, { -7, -3 }, { -4, -3 }, { -2, -3 },
72 { -1, -3 }, { 0, -3 }, { 1, -3 }, { 2, -3 }, { 4, -3 },
73 { 6, -3 }, { 33, -3 }, { -14, -2 }, { -10, -2 }, { -5, -2 },
74 { -3, -2 }, { -2, -2 }, { -1, -2 }, { 0, -2 }, { 1, -2 },
75 { 2, -2 }, { 3, -2 }, { 5, -2 }, { 7, -2 }, { 14, -2 },
76 { 19, -2 }, { 25, -2 }, { 43, -2 }, { -7, -1 }, { -3, -1 },
77 { -2, -1 }, { -1, -1 }, { 0, -1 }, { 1, -1 }, { 2, -1 },
78 { 3, -1 }, { 10, -1 }, { -5, 0 }, { -3, 0 }, { -2, 0 },
79 { -1, 0 }, { 1, 0 }, { 2, 0 }, { 3, 0 }, { 5, 0 },
80 { 7, 0 }, { -10, 1 }, { -7, 1 }, { -3, 1 }, { -2, 1 },
81 { -1, 1 }, { 0, 1 }, { 1, 1 }, { 2, 1 }, { 3, 1 },
82 { -43, 2 }, { -25, 2 }, { -19, 2 }, { -14, 2 }, { -5, 2 },
83 { -3, 2 }, { -2, 2 }, { -1, 2 }, { 0, 2 }, { 1, 2 },
84 { 2, 2 }, { 3, 2 }, { 5, 2 }, { 7, 2 }, { 10, 2 },
85 { 14, 2 }, { -33, 3 }, { -6, 3 }, { -4, 3 }, { -2, 3 },
86 { -1, 3 }, { 0, 3 }, { 1, 3 }, { 2, 3 }, { 4, 3 },
87 { 19, 3 }, { -9, 4 }, { -3, 4 }, { 3, 4 }, { 7, 4 },
88 { 25, 4 }, { -13, 5 }, { -5, 5 }, { -2, 5 }, { 0, 5 },
89 { 2, 5 }, { 5, 5 }, { 9, 5 }, { 33, 5 }, { -8, 6 },
90 { -4, 6 }, { 4, 6 }, { 13, 6 }, { 43, 6 }, { -18, 7 },
91 { -2, 7 }, { 0, 7 }, { 2, 7 }, { 7, 7 }, { 18, 7 },
92 { -24, 8 }, { -6, 8 }, { -42, 9 }, { -11, 9 }, { -4, 9 },
93 { 5, 9 }, { 11, 9 }, { 23, 9 }, { -31, 10 }, { -1, 10 },
94 { 2, 10 }, { -15, 11 }, { -8, 11 }, { 8, 11 }, { 15, 11 },
95 { 31, 12 }, { -21, 13 }, { -5, 13 }, { 5, 13 }, { 41, 13 },
96 { -1, 14 }, { 1, 14 }, { 21, 14 }, { -12, 15 }, { 12, 15 },
97 { -39, 17 }, { -28, 17 }, { -18, 17 }, { -8, 17 }, { 8, 17 },
98 { 17, 18 }, { -4, 19 }, { 0, 19 }, { 4, 19 }, { 27, 19 },
99 { 38, 20 }, { -13, 21 }, { 12, 22 }, { -36, 23 }, { -24, 23 },
100 { -8, 24 }, { 7, 24 }, { -3, 25 }, { 1, 25 }, { 22, 25 },
101 { 34, 26 }, { -18, 28 }, { -32, 29 }, { 16, 29 }, { -11, 31 },
102 { 9, 32 }, { 29, 32 }, { -4, 33 }, { 2, 33 }, { -26, 34 },
103 { 23, 36 }, { -19, 39 }, { 16, 40 }, { -13, 41 }, { 9, 42 },
104 { -6, 43 }, { 1, 43 }, { 0, 0 }, { 0, 0 }, { 0, 0 },
108 0, 0, 1, 0, 2, 0, 3, 0, 5, 0,
109 8, 0, 13, 0, 21, 0, -1, 0, -2, 0,
110 -3, 0, -5, 0, -8, 0, -13, 0, -17, 0,
111 -21, 0, 0, 1, 1, 1, 2, 1, 3, 1,
112 5, 1, 8, 1, 13, 1, 21, 1, -1, 1,
113 -2, 1, -3, 1, -5, 1, -8, 1, -13, 1,
114 -17, 1, -21, 1, 0, 2, 1, 2, 2, 2,
115 3, 2, 5, 2, 8, 2, 13, 2, 21, 2,
116 -1, 2, -2, 2, -3, 2, -5, 2, -8, 2,
117 -13, 2, -17, 2, -21, 2, 0, 3, 1, 3,
118 2, 3, 3, 3, 5, 3, 8, 3, 13, 3,
119 21, 3, -1, 3, -2, 3, -3, 3, -5, 3,
120 -8, 3, -13, 3, -17, 3, -21, 3, 0, 5,
121 1, 5, 2, 5, 3, 5, 5, 5, 8, 5,
122 13, 5, 21, 5, -1, 5, -2, 5, -3, 5,
123 -5, 5, -8, 5, -13, 5, -17, 5, -21, 5,
124 0, 8, 1, 8, 2, 8, 3, 8, 5, 8,
125 8, 8, 13, 8, 21, 8, -1, 8, -2, 8,
126 -3, 8, -5, 8, -8, 8, -13, 8, -17, 8,
127 -21, 8, 0, 13, 1, 13, 2, 13, 3, 13,
128 5, 13, 8, 13, 13, 13, 21, 13, -1, 13,
129 -2, 13, -3, 13, -5, 13, -8, 13, -13, 13,
130 -17, 13, -21, 13, 0, 21, 1, 21, 2, 21,
131 3, 21, 5, 21, 8, 21, 13, 21, 21, 21,
132 -1, 21, -2, 21, -3, 21, -5, 21, -8, 21,
133 -13, 21, -17, 21, -21, 21, 0, -1, 1, -1,
134 2, -1, 3, -1, 5, -1, 8, -1, 13, -1,
135 21, -1, -1, -1, -2, -1, -3, -1, -5, -1,
136 -8, -1, -13, -1, -17, -1, -21, -1, 0, -2,
137 1, -2, 2, -2, 3, -2, 5, -2, 8, -2,
138 13, -2, 21, -2, -1, -2, -2, -2, -3, -2,
139 -5, -2, -8, -2, -13, -2, -17, -2, -21, -2,
140 0, -3, 1, -3, 2, -3, 3, -3, 5, -3,
141 8, -3, 13, -3, 21, -3, -1, -3, -2, -3,
142 -3, -3, -5, -3, -8, -3, -13, -3, -17, -3,
143 -21, -3, 0, -5, 1, -5, 2, -5, 3, -5,
144 5, -5, 8, -5, 13, -5, 21, -5, -1, -5,
145 -2, -5, -3, -5, -5, -5, -8, -5, -13, -5,
146 -17, -5, -21, -5, 0, -8, 1, -8, 2, -8,
147 3, -8, 5, -8, 8, -8, 13, -8, 21, -8,
148 -1, -8, -2, -8, -3, -8, -5, -8, -8, -8,
149 -13, -8, -17, -8, -21, -8, 0, -13, 1, -13,
150 2, -13, 3, -13, 5, -13, 8, -13, 13, -13,
151 21, -13, -1, -13, -2, -13, -3, -13, -5, -13,
152 -8, -13, -13, -13, -17, -13, -21, -13, 0, -17,
153 1, -17, 2, -17, 3, -17, 5, -17, 8, -17,
154 13, -17, 21, -17, -1, -17, -2, -17, -3, -17,
155 -5, -17, -8, -17, -13, -17, -17, -17, -21, -17,
156 0, -21, 1, -21, 2, -21, 3, -21, 5, -21,
157 8, -21, 13, -21, 21, -21, -1, -21, -2, -21,
158 -3, -21, -5, -21, -8, -21, -13, -21, -17, -21,
159 0, 0, -8, -29, 8, -29, -18, -25, 17, -25,
160 0, -23, -6, -22, 6, -22, -13, -19, 12, -19,
161 0, -18, 25, -18, -25, -17, -5, -17, 5, -17,
162 -10, -15, 10, -15, 0, -14, -4, -13, 4, -13,
163 19, -13, -19, -12, -8, -11, -2, -11, 0, -11,
164 2, -11, 8, -11, -15, -10, -4, -10, 4, -10,
165 15, -10, -6, -9, -1, -9, 1, -9, 6, -9,
166 -29, -8, -11, -8, -8, -8, -3, -8, 3, -8,
167 8, -8, 11, -8, 29, -8, -5, -7, -2, -7,
168 0, -7, 2, -7, 5, -7, -22, -6, -9, -6,
169 -6, -6, -3, -6, -1, -6, 1, -6, 3, -6,
170 6, -6, 9, -6, 22, -6, -17, -5, -7, -5,
171 -4, -5, -2, -5, 0, -5, 2, -5, 4, -5,
172 7, -5, 17, -5, -13, -4, -10, -4, -5, -4,
173 -3, -4, -1, -4, 0, -4, 1, -4, 3, -4,
174 5, -4, 10, -4, 13, -4, -8, -3, -6, -3,
175 -4, -3, -3, -3, -2, -3, -1, -3, 0, -3,
176 1, -3, 2, -3, 4, -3, 6, -3, 8, -3,
177 -11, -2, -7, -2, -5, -2, -3, -2, -2, -2,
178 -1, -2, 0, -2, 1, -2, 2, -2, 3, -2,
179 5, -2, 7, -2, 11, -2, -9, -1, -6, -1,
180 -4, -1, -3, -1, -2, -1, -1, -1, 0, -1,
181 1, -1, 2, -1, 3, -1, 4, -1, 6, -1,
182 9, -1, -31, 0, -23, 0, -18, 0, -14, 0,
183 -11, 0, -7, 0, -5, 0, -4, 0, -3, 0,
184 -2, 0, -1, 0, 0, -31, 1, 0, 2, 0,
185 3, 0, 4, 0, 5, 0, 7, 0, 11, 0,
186 14, 0, 18, 0, 23, 0, 31, 0, -9, 1,
187 -6, 1, -4, 1, -3, 1, -2, 1, -1, 1,
188 0, 1, 1, 1, 2, 1, 3, 1, 4, 1,
189 6, 1, 9, 1, -11, 2, -7, 2, -5, 2,
190 -3, 2, -2, 2, -1, 2, 0, 2, 1, 2,
191 2, 2, 3, 2, 5, 2, 7, 2, 11, 2,
192 -8, 3, -6, 3, -4, 3, -2, 3, -1, 3,
193 0, 3, 1, 3, 2, 3, 3, 3, 4, 3,
194 6, 3, 8, 3, -13, 4, -10, 4, -5, 4,
195 -3, 4, -1, 4, 0, 4, 1, 4, 3, 4,
196 5, 4, 10, 4, 13, 4, -17, 5, -7, 5,
197 -4, 5, -2, 5, 0, 5, 2, 5, 4, 5,
198 7, 5, 17, 5, -22, 6, -9, 6, -6, 6,
199 -3, 6, -1, 6, 1, 6, 3, 6, 6, 6,
200 9, 6, 22, 6, -5, 7, -2, 7, 0, 7,
201 2, 7, 5, 7, -29, 8, -11, 8, -8, 8,
202 -3, 8, 3, 8, 8, 8, 11, 8, 29, 8,
203 -6, 9, -1, 9, 1, 9, 6, 9, -15, 10,
204 -4, 10, 4, 10, 15, 10, -8, 11, -2, 11,
205 0, 11, 2, 11, 8, 11, 19, 12, -19, 13,
206 -4, 13, 4, 13, 0, 14, -10, 15, 10, 15,
207 -5, 17, 5, 17, 25, 17, -25, 18, 0, 18,
208 -12, 19, 13, 19, -6, 22, 6, 22, 0, 23,
209 -17, 25, 18, 25, -8, 29, 8, 29, 0, 31,
210 0, 0, -6, -22, 6, -22, -13, -19, 12, -19,
211 0, -18, -5, -17, 5, -17, -10, -15, 10, -15,
212 0, -14, -4, -13, 4, -13, 19, -13, -19, -12,
213 -8, -11, -2, -11, 0, -11, 2, -11, 8, -11,
214 -15, -10, -4, -10, 4, -10, 15, -10, -6, -9,
215 -1, -9, 1, -9, 6, -9, -11, -8, -8, -8,
216 -3, -8, 0, -8, 3, -8, 8, -8, 11, -8,
217 -5, -7, -2, -7, 0, -7, 2, -7, 5, -7,
218 -22, -6, -9, -6, -6, -6, -3, -6, -1, -6,
219 1, -6, 3, -6, 6, -6, 9, -6, 22, -6,
220 -17, -5, -7, -5, -4, -5, -2, -5, -1, -5,
221 0, -5, 1, -5, 2, -5, 4, -5, 7, -5,
222 17, -5, -13, -4, -10, -4, -5, -4, -3, -4,
223 -2, -4, -1, -4, 0, -4, 1, -4, 2, -4,
224 3, -4, 5, -4, 10, -4, 13, -4, -8, -3,
225 -6, -3, -4, -3, -3, -3, -2, -3, -1, -3,
226 0, -3, 1, -3, 2, -3, 3, -3, 4, -3,
227 6, -3, 8, -3, -11, -2, -7, -2, -5, -2,
228 -4, -2, -3, -2, -2, -2, -1, -2, 0, -2,
229 1, -2, 2, -2, 3, -2, 4, -2, 5, -2,
230 7, -2, 11, -2, -9, -1, -6, -1, -5, -1,
231 -4, -1, -3, -1, -2, -1, -1, -1, 0, -1,
232 1, -1, 2, -1, 3, -1, 4, -1, 5, -1,
233 6, -1, 9, -1, -23, 0, -18, 0, -14, 0,
234 -11, 0, -7, 0, -5, 0, -4, 0, -3, 0,
235 -2, 0, -1, 0, 0, -23, 1, 0, 2, 0,
236 3, 0, 4, 0, 5, 0, 7, 0, 11, 0,
237 14, 0, 18, 0, 23, 0, -9, 1, -6, 1,
238 -5, 1, -4, 1, -3, 1, -2, 1, -1, 1,
239 0, 1, 1, 1, 2, 1, 3, 1, 4, 1,
240 5, 1, 6, 1, 9, 1, -11, 2, -7, 2,
241 -5, 2, -4, 2, -3, 2, -2, 2, -1, 2,
242 0, 2, 1, 2, 2, 2, 3, 2, 4, 2,
243 5, 2, 7, 2, 11, 2, -8, 3, -6, 3,
244 -4, 3, -3, 3, -2, 3, -1, 3, 0, 3,
245 1, 3, 2, 3, 3, 3, 4, 3, 6, 3,
246 8, 3, -13, 4, -10, 4, -5, 4, -3, 4,
247 -2, 4, -1, 4, 0, 4, 1, 4, 2, 4,
248 3, 4, 5, 4, 10, 4, 13, 4, -17, 5,
249 -7, 5, -4, 5, -2, 5, -1, 5, 0, 5,
250 1, 5, 2, 5, 4, 5, 7, 5, 17, 5,
251 -22, 6, -9, 6, -6, 6, -3, 6, -1, 6,
252 1, 6, 3, 6, 6, 6, 9, 6, 22, 6,
253 -5, 7, -2, 7, 0, 7, 2, 7, 5, 7,
254 -11, 8, -8, 8, -3, 8, 0, 8, 3, 8,
255 8, 8, 11, 8, -6, 9, -1, 9, 1, 9,
256 6, 9, -15, 10, -4, 10, 4, 10, 15, 10,
257 -8, 11, -2, 11, 0, 11, 2, 11, 8, 11,
258 19, 12, -19, 13, -4, 13, 4, 13, 0, 14,
259 -10, 15, 10, 15, -5, 17, 5, 17, 0, 18,
260 -12, 19, 13, 19, -6, 22, 6, 22, 0, 23,
328 const int edge_max = edge_size - 1;
332 else if (y == edge_max)
336 else if (x == edge_max)
365 static void interp_point(int8_t *points,
int x0,
int y0,
int x1,
int y1,
366 int pos,
int npoints)
369 points[0] = (x0 * pos + x1 * (npoints - pos) + (npoints >> 1)) / npoints;
370 points[1] = (y0 * pos + y1 * (npoints - pos) + (npoints >> 1)) / npoints;
385 static void make_glyphs(int8_t *pglyphs,
const int8_t *xvec,
const int8_t *yvec,
386 const int side_length)
388 const int glyph_size = side_length * side_length;
389 int8_t *pglyph = pglyphs;
405 for (ipoint = 0; ipoint <= npoints; ipoint++) {
413 for (irow = point[1]; irow >= 0; irow--)
414 pglyph[point[0] + irow * side_length] = 1;
418 for (irow = point[1]; irow < side_length; irow++)
419 pglyph[point[0] + irow * side_length] = 1;
423 for (icol = point[0]; icol >= 0; icol--)
424 pglyph[icol + point[1] * side_length] = 1;
428 for (icol = point[0]; icol < side_length; icol++)
429 pglyph[icol + point[1] * side_length] = 1;
483 if (rotate_code == 2)
536 opcode = bytestream2_get_byte(&ctx->
gb);
537 run_len = (opcode >> 1) + 1;
542 color = bytestream2_get_byte(&ctx->
gb);
543 memset(dst, color, run_len);
563 for (i = 0; i <
height; i++) {
569 len = bytestream2_get_le16u(&ctx->
gb);
576 code = bytestream2_get_byteu(&ctx->
gb);
578 code = (code >> 1) + 1;
579 if (pos + code > width)
582 val = bytestream2_get_byteu(&ctx->
gb);
584 memset(dst + pos, val, code);
589 for (j = 0; j < code; j++) {
590 val = bytestream2_get_byteu(&ctx->
gb);
610 for (j = 0; j < 4; j++) {
611 for (i = 0; i < 4; i++) {
612 if ((pos + i) < 0 || (pos + i) >= height * stride)
630 int compr = bytestream2_get_byte(&ctx->
gb);
631 int mvoff = bytestream2_get_byte(&ctx->
gb);
632 int seq = bytestream2_get_le16(&ctx->
gb);
633 uint32_t decoded_size = bytestream2_get_le32(&ctx->
gb);
637 flags = bytestream2_get_byte(&ctx->
gb);
640 if (decoded_size > ctx->
height * stride - left - top * stride) {
641 decoded_size = ctx->
height * stride - left - top *
stride;
647 if (((seq & 1) || !(flags & 1)) && (compr && compr != 2))
660 for (i = 0; i <
height; i++) {
676 for (j = 0; j <
height; j += 4) {
677 for (i = 0; i <
width; i += 4) {
686 code = bytestream2_get_byteu(&ctx->
gb);
691 for (k = 0; k < 4; k++)
697 for (k = 0; k < 4; k++)
698 memset(dst + i + k * stride, bytestream2_get_byteu(&ctx->
gb), 4);
703 t = bytestream2_get_byteu(&ctx->
gb);
704 for (k = 0; k < 4; k++)
705 memset(dst + i + k * stride, t, 4);
708 if (compr == 4 && !code) {
711 skip_run = bytestream2_get_byteu(&ctx->
gb) + 1;
716 mx =
c37_mv[(mvoff * 255 + code) * 2];
717 my =
c37_mv[(mvoff * 255 + code) * 2 + 1];
718 codec37_mv(dst + i, prev + i + mx + my * stride,
719 ctx->
height, stride, i + mx, j + my);
727 for (j = 0; j <
height; j += 4) {
728 for (i = 0; i <
width; i += 4) {
735 code = bytestream2_get_byte(&ctx->
gb);
739 for (k = 0; k < 4; k++)
741 }
else if (compr == 4 && !code) {
744 skip_run = bytestream2_get_byteu(&ctx->
gb) + 1;
749 mx =
c37_mv[(mvoff * 255 + code) * 2];
750 my =
c37_mv[(mvoff * 255 + code) * 2 + 1];
751 codec37_mv(dst + i, prev + i + mx + my * stride,
752 ctx->
height, stride, i + mx, j + my);
762 "Subcodec 37 compression %d", compr);
779 code = bytestream2_get_byteu(&ctx->
gb);
786 dst[0] = bytestream2_get_byteu(&ctx->
gb);
787 dst[1] = bytestream2_get_byteu(&ctx->
gb);
788 dst[0 +
stride] = bytestream2_get_byteu(&ctx->
gb);
789 dst[1 +
stride] = bytestream2_get_byteu(&ctx->
gb);
792 if (
process_block(ctx, dst, prev1, prev2, stride, tbl, size))
794 if (
process_block(ctx, dst + size, prev1 + size, prev2 + size,
800 if (
process_block(ctx, dst, prev1, prev2, stride, tbl, size))
802 if (
process_block(ctx, dst + size, prev1 + size, prev2 + size,
811 t = bytestream2_get_byteu(&ctx->
gb);
812 for (k = 0; k <
size; k++)
813 memset(dst + k * stride, t, size);
819 code = bytestream2_get_byteu(&ctx->
gb);
823 for (k = 0; k <
size; k++)
824 for (t = 0; t <
size; t++)
825 dst[t + k * stride] = colors[!*pglyph++];
828 for (k = 0; k <
size; k++)
829 memcpy(dst + k * stride, prev1 + k * stride, size);
834 t = bytestream2_get_byte(&ctx->
gb);
836 for (k = 0; k <
size; k++)
837 memset(dst + k * stride, t, size);
846 if (index < -mx - my * stride ||
847 (ctx->
buf_size >> 1) - index < mx + size + (my + size - 1) * stride) {
852 for (k = 0; k <
size; k++)
853 memcpy(dst + k * stride, prev2 + mx + (my + k) * stride, size);
862 uint32_t decoded_size;
869 int seq = bytestream2_get_le16(&ctx->
gb);
870 int compr = bytestream2_get_byte(&ctx->
gb);
871 int new_rot = bytestream2_get_byte(&ctx->
gb);
872 int skip = bytestream2_get_byte(&ctx->
gb);
875 decoded_size = bytestream2_get_le32(&ctx->
gb);
878 if (decoded_size > ctx->
height * stride - left - top * stride) {
879 decoded_size = ctx->
height * stride - left - top *
stride;
887 memset(prev1, 0, ctx->
height * stride);
888 memset(prev2, 0, ctx->
height * stride);
895 for (j = 0; j <
height; j++) {
903 for (j = 0; j <
height; j += 2) {
904 for (i = 0; i <
width; i += 2) {
908 dst[stride + i + 1] = bytestream2_get_byteu(&ctx->
gb);
915 for (j = 0; j <
height; j += 8) {
916 for (i = 0; i <
width; i += 8)
917 if (
process_block(ctx, dst + i, prev1 + i, prev2 + i, stride,
938 "Subcodec 47 compression %d", compr);
952 uint16_t codec = bytestream2_get_le16u(&ctx->
gb);
953 uint16_t left = bytestream2_get_le16u(&ctx->
gb);
954 uint16_t top = bytestream2_get_le16u(&ctx->
gb);
955 uint16_t w = bytestream2_get_le16u(&ctx->
gb);
956 uint16_t
h = bytestream2_get_le16u(&ctx->
gb);
963 if (ctx->
width < left + w || ctx->
height < top + h) {
993 uint16_t *frm = ctx->
frm0;
1000 for (y = 0; y < ctx->
height; y++) {
1001 for (x = 0; x < ctx->
width; x++)
1002 frm[x] = bytestream2_get_le16u(&ctx->
gb);
1014 static void copy_block(uint16_t *pdest, uint16_t *psrc,
int block_size, ptrdiff_t pitch)
1018 ptrdiff_t
stride = pitch * 2;
1020 switch (block_size) {
1037 pitch -= block_size;
1038 for (y = 0; y < block_size; y++, pdest += pitch)
1039 for (x = 0; x < block_size; x++)
1044 uint16_t fg_color, uint16_t bg_color,
int block_size,
1048 uint16_t colors[2] = { fg_color, bg_color };
1057 pitch -= block_size;
1059 for (y = 0; y < block_size; y++, dst += pitch)
1060 for (x = 0; x < block_size; x++)
1061 *dst++ = colors[*pglyph++];
1067 uint16_t *dst = ctx->
frm0 + cx + cy * ctx->
pitch;
1069 if (block_size == 2) {
1075 indices = bytestream2_get_le32u(&ctx->
gb);
1076 dst[0] = ctx->
codebook[indices & 0xFF];
1078 dst[1] = ctx->
codebook[indices & 0xFF];
1080 dst[pitch] = ctx->
codebook[indices & 0xFF];
1082 dst[pitch + 1] = ctx->
codebook[indices & 0xFF];
1084 uint16_t fgcolor, bgcolor;
1090 glyph = bytestream2_get_byteu(&ctx->
gb);
1091 bgcolor = ctx->
codebook[bytestream2_get_byteu(&ctx->
gb)];
1092 fgcolor = ctx->
codebook[bytestream2_get_byteu(&ctx->
gb)];
1094 draw_glyph(ctx, dst, glyph, fgcolor, bgcolor, block_size, pitch);
1101 uint16_t *dst = ctx->
frm0 + cx + cy * ctx->
pitch;
1103 if (block_size == 2) {
1107 dst[0] = bytestream2_get_le16u(&ctx->
gb);
1108 dst[1] = bytestream2_get_le16u(&ctx->
gb);
1109 dst[pitch] = bytestream2_get_le16u(&ctx->
gb);
1110 dst[pitch + 1] = bytestream2_get_le16u(&ctx->
gb);
1112 uint16_t fgcolor, bgcolor;
1118 glyph = bytestream2_get_byteu(&ctx->
gb);
1119 bgcolor = bytestream2_get_le16u(&ctx->
gb);
1120 fgcolor = bytestream2_get_le16u(&ctx->
gb);
1122 draw_glyph(ctx, dst, glyph, fgcolor, bgcolor, block_size, pitch);
1130 int start_pos = cx + mx + (cy + my) * ctx->
pitch;
1131 int end_pos = start_pos + (block_size - 1) * (ctx->
pitch + 1);
1133 int good = start_pos >= 0 && end_pos < (ctx->
buf_size >> 1);
1137 "Ignoring invalid motion vector (%i, %i)->(%u, %u), block size = %u\n",
1138 cx + mx, cy + my, cx, cy, block_size);
1145 int16_t mx, my,
index;
1151 opcode = bytestream2_get_byteu(&ctx->
gb);
1158 if (
good_mvec(ctx, cx, cy, mx, my, blk_size)) {
1160 ctx->
frm2 + cx + mx + ctx->
pitch * (cy + my),
1161 blk_size, ctx->
pitch);
1167 index = bytestream2_get_le16u(&ctx->
gb);
1169 mx = index % ctx->
width;
1170 my = index / ctx->
width;
1172 if (
good_mvec(ctx, cx, cy, mx, my, blk_size)) {
1174 ctx->
frm2 + cx + mx + ctx->
pitch * (cy + my),
1175 blk_size, ctx->
pitch);
1181 blk_size, ctx->
pitch);
1201 ctx->
codebook[bytestream2_get_byteu(&ctx->
gb)], blk_size, ctx->
pitch);
1207 bytestream2_get_le16u(&ctx->
gb), blk_size, ctx->
pitch);
1210 if (blk_size == 2) {
1278 uint16_t *frm = ctx->
frm0;
1285 *frm++ = ctx->
codebook[bytestream2_get_byteu(&ctx->
gb)];
1292 uint16_t *pdest = ctx->
frm0;
1330 hdr->
width = bytestream2_get_le32u(&ctx->
gb);
1331 hdr->
height = bytestream2_get_le32u(&ctx->
gb);
1338 hdr->
seq_num = bytestream2_get_le16u(&ctx->
gb);
1339 hdr->
codec = bytestream2_get_byteu(&ctx->
gb);
1344 for (i = 0; i < 4; i++)
1346 hdr->
bg_color = bytestream2_get_le16u(&ctx->
gb);
1351 for (i = 0; i < 256; i++)
1352 ctx->
codebook[i] = bytestream2_get_le16u(&ctx->
gb);
1370 ptrdiff_t dstpitch, srcpitch = ctx->
pitch * (hdr ?
sizeof(ctx->
frm0[0]) : 1);
1379 memcpy(dst, src, srcpitch);
1403 sig = bytestream2_get_be32u(&ctx->
gb);
1404 size = bytestream2_get_be32u(&ctx->
gb);
1412 case MKBETAG(
'N',
'P',
'A',
'L'):
1415 "Incorrect palette block size %"PRIu32
".\n", size);
1419 ctx->
pal[i] = 0xFFU << 24 | bytestream2_get_be24u(&ctx->
gb);
1421 case MKBETAG(
'F',
'O',
'B',
'J'):
1427 case MKBETAG(
'X',
'P',
'A',
'L'):
1428 if (size == 6 || size == 4) {
1433 for (j = 0; j < 3; j++) {
1434 int t = (ctx->
pal[i] >> (16 - j * 8)) & 0xFF;
1435 tmp[j] = av_clip_uint8((t * 129 + ctx->
delta_pal[i * 3 + j]) >> 7);
1442 "Incorrect palette change block size %"PRIu32
".\n",
1448 ctx->
delta_pal[i] = bytestream2_get_le16u(&ctx->
gb);
1449 if (size >= PALETTE_DELTA * 5 + 4) {
1451 ctx->
pal[i] = 0xFFU << 24 | bytestream2_get_be24u(&ctx->
gb);
1453 memset(ctx->
pal, 0,
sizeof(ctx->
pal));
1457 case MKBETAG(
'S',
'T',
'O',
'R'):
1460 case MKBETAG(
'F',
'T',
'C',
'H'):
1466 "Unknown/unsupported chunk %"PRIx32
".\n", sig);
1497 "Subcodec %d: error decoding frame.\n", header.
codec);
const char const char void * val
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
static int process_frame_obj(SANMVideoContext *ctx)
This structure describes decoded (raw) audio or video data.
static int read_frame_header(SANMVideoContext *ctx, SANMFrameHeader *hdr)
int8_t p4x4glyphs[NGLYPHS][16]
ptrdiff_t const GLvoid * data
#define AV_LOG_WARNING
Something somehow does not look correct.
static void fill_frame(uint16_t *pbuf, int buf_size, uint16_t color)
int ff_set_dimensions(AVCodecContext *s, int width, int height)
Check that the provided frame dimensions are valid and set them on the codec context.
static av_cold int init(AVCodecContext *avctx)
uint32_t pal[PALETTE_SIZE]
static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame_ptr, AVPacket *pkt)
enum AVPixelFormat pix_fmt
Pixel format, see AV_PIX_FMT_xxx.
static av_always_inline void bytestream2_init(GetByteContext *g, const uint8_t *buf, int buf_size)
static enum GlyphEdge which_edge(int x, int y, int edge_size)
Return enum GlyphEdge of box where point (x, y) lies.
static const int8_t glyph4_x[GLYPH_COORD_VECT_SIZE]
static void copy_block8(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_RL16
static const int8_t glyph8_y[GLYPH_COORD_VECT_SIZE]
static av_always_inline unsigned int bytestream2_get_bufferu(GetByteContext *g, uint8_t *dst, unsigned int size)
static const uint8_t run_len[7][16]
void void avpriv_request_sample(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
static av_cold int decode_init(AVCodecContext *avctx)
#define av_assert2(cond)
assert() equivalent, that does lie in speed critical code.
8 bits with AV_PIX_FMT_RGB32 palette
static const uint32_t color[16+AV_CLASS_CATEGORY_NB]
static int good_mvec(SANMVideoContext *ctx, int cx, int cy, int mx, int my, int block_size)
static av_cold int end(AVCodecContext *avctx)
static void codec37_mv(uint8_t *dst, const uint8_t *src, int height, int stride, int x, int y)
uint8_t * extradata
some codecs need / can use extradata like Huffman tables.
static const int8_t glyph4_y[GLYPH_COORD_VECT_SIZE]
static av_always_inline void bytestream2_skipu(GetByteContext *g, unsigned int size)
static const int8_t motion_vectors[256][2]
static const uint8_t header[24]
static int decode_5(SANMVideoContext *ctx)
static void fill_block(uint16_t *pdest, uint16_t color, int block_size, ptrdiff_t pitch)
uint16_t small_codebook[4]
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
static av_cold int decode_end(AVCodecContext *avctx)
static void copy_block(uint16_t *pdest, uint16_t *psrc, int block_size, ptrdiff_t pitch)
static av_always_inline void bytestream2_skip(GetByteContext *g, unsigned int size)
static int rle_decode(SANMVideoContext *ctx, uint8_t *dst, const int out_size)
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification. ...
static av_always_inline unsigned int bytestream2_get_buffer(GetByteContext *g, uint8_t *dst, unsigned int size)
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
static av_always_inline unsigned int bytestream2_get_bytes_left(GetByteContext *g)
simple assert() macros that are a bit more flexible than ISO C assert().
static int decode_3(SANMVideoContext *ctx)
const char * name
Name of the codec implementation.
static enum GlyphDir which_direction(enum GlyphEdge edge0, enum GlyphEdge edge1)
static void make_glyphs(int8_t *pglyphs, const int8_t *xvec, const int8_t *yvec, const int side_length)
Construct glyphs by iterating through vector coordinates.
uint32_t stored_frame_size
void av_fast_malloc(void *ptr, unsigned int *size, size_t min_size)
Allocate a buffer, reusing the given one if large enough.
enum AVPictureType pict_type
Picture type of the frame.
int width
picture width / height.
static void destroy_buffers(SANMVideoContext *ctx)
static void interp_point(int8_t *points, int x0, int y0, int x1, int y1, int pos, int npoints)
static int old_codec47(SANMVideoContext *ctx, int top, int left, int width, int height)
#define FFABS(a)
Absolute value, Note, INT_MIN / INT64_MIN result in undefined behavior as they are not representable ...
static int copy_output(SANMVideoContext *ctx, SANMFrameHeader *hdr)
static int opcode_0xf7(SANMVideoContext *ctx, int cx, int cy, int block_size, ptrdiff_t pitch)
#define FF_ARRAY_ELEMS(a)
#define AVERROR_PATCHWELCOME
Not yet implemented in FFmpeg, patches welcome.
static av_cold int init_buffers(SANMVideoContext *ctx)
static av_always_inline int bytestream2_tell(GetByteContext *g)
static int draw_glyph(SANMVideoContext *ctx, uint16_t *dst, int index, uint16_t fg_color, uint16_t bg_color, int block_size, ptrdiff_t pitch)
static const int8_t c37_mv[]
Libavcodec external API header.
#define GLYPH_COORD_VECT_SIZE
static int decode_nop(SANMVideoContext *ctx)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_WL32 unsigned int_TMPL AV_WL24 unsigned int_TMPL AV_WL16 uint64_t_TMPL AV_WB64 unsigned int_TMPL AV_WB32 unsigned int_TMPL AV_RB24
static int decode_6(SANMVideoContext *ctx)
int linesize[AV_NUM_DATA_POINTERS]
For video, size in bytes of each picture line.
static void copy_block4(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)
main external API structure.
static int codec2subblock(SANMVideoContext *ctx, int cx, int cy, int blk_size)
int ff_get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
Get a buffer for a frame.
static int process_block(SANMVideoContext *ctx, uint8_t *dst, uint8_t *prev1, uint8_t *prev2, int stride, int tbl, int size)
static int decode_2(SANMVideoContext *ctx)
static int decode_8(SANMVideoContext *ctx)
static int decode_0(SANMVideoContext *ctx)
static void rotate_bufs(SANMVideoContext *ctx, int rotate_code)
static void copy_block16(uint8_t *dst, const uint8_t *src, ptrdiff_t dstStride, ptrdiff_t srcStride, int h)
void avpriv_report_missing_feature(void *avc, const char *msg,...) av_printf_format(2
Log a generic warning message about a missing feature.
static const frm_decoder v1_decoders[]
uint8_t * data[AV_NUM_DATA_POINTERS]
pointer to the picture/channel planes.
unsigned int rle_buf_size
GLint GLenum GLboolean GLsizei stride
static int old_codec37(SANMVideoContext *ctx, int top, int left, int width, int height)
common internal api header.
static void init_sizes(SANMVideoContext *ctx, int width, int height)
void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size)
Same behaviour av_fast_padded_malloc except that buffer will always be 0-initialized after call...
#define MKBETAG(a, b, c, d)
static const int8_t glyph8_x[GLYPH_COORD_VECT_SIZE]
static int decode_4(SANMVideoContext *ctx)
int16_t delta_pal[PALETTE_DELTA]
int key_frame
1 -> keyframe, 0-> not
static av_always_inline int bytestream2_seek(GetByteContext *g, int offset, int whence)
#define AV_PIX_FMT_RGB565
static int old_codec1(SANMVideoContext *ctx, int top, int left, int width, int height)
int8_t p8x8glyphs[NGLYPHS][64]
static int decode(AVCodecContext *avctx, AVFrame *frame, int *got_frame, AVPacket *pkt)
#define FFSWAP(type, a, b)
uint64_t_TMPL AV_WL64 unsigned int_TMPL AV_RL32
This structure stores compressed data.
#define AV_CODEC_CAP_DR1
Codec uses get_buffer() for allocating buffers and supports custom allocators.
int(* frm_decoder)(SANMVideoContext *ctx)
static int opcode_0xf8(SANMVideoContext *ctx, int cx, int cy, int block_size, ptrdiff_t pitch)