35 #define KMVC_KEYFRAME 0x80
36 #define KMVC_PALETTE 0x40
37 #define KMVC_METHOD 0x0F
38 #define MAX_PALSIZE 256
59 #define BLK(data, x, y) data[av_clip((x) + (y) * 320, 0, 320 * 200 -1)]
61 #define kmvc_init_getbits(bb, g) bb.bits = 7; bb.bitbuf = bytestream2_get_byte(g);
63 #define kmvc_getbit(bb, g, res) {\
65 if (bb.bitbuf & (1 << bb.bits)) res = 1; \
68 bb.bitbuf = bytestream2_get_byte(g); \
79 int l0x, l1x, l0y, l1y;
84 for (by = 0; by < h; by += 8)
85 for (bx = 0; bx < w; bx += 8) {
92 val = bytestream2_get_byte(&ctx->
g);
93 for (i = 0; i < 64; i++)
94 BLK(ctx->
cur, bx + (i & 0x7), by + (i >> 3)) = val;
96 for (i = 0; i < 4; i++) {
97 l0x = bx + (i & 1) * 4;
98 l0y = by + (i & 2) * 2;
103 val = bytestream2_get_byte(&ctx->
g);
104 for (j = 0; j < 16; j++)
105 BLK(ctx->
cur, l0x + (j & 3), l0y + (j >> 2)) = val;
107 val = bytestream2_get_byte(&ctx->
g);
110 for (j = 0; j < 16; j++)
111 BLK(ctx->
cur, l0x + (j & 3), l0y + (j >> 2)) =
112 BLK(ctx->
cur, l0x + (j & 3) - mx, l0y + (j >> 2) - my);
115 for (j = 0; j < 4; j++) {
116 l1x = l0x + (j & 1) * 2;
122 val = bytestream2_get_byte(&ctx->
g);
123 BLK(ctx->
cur, l1x, l1y) = val;
124 BLK(ctx->
cur, l1x + 1, l1y) = val;
125 BLK(ctx->
cur, l1x, l1y + 1) = val;
126 BLK(ctx->
cur, l1x + 1, l1y + 1) = val;
128 val = bytestream2_get_byte(&ctx->
g);
131 BLK(ctx->
cur, l1x, l1y) =
BLK(ctx->
cur, l1x - mx, l1y - my);
132 BLK(ctx->
cur, l1x + 1, l1y) =
133 BLK(ctx->
cur, l1x + 1 - mx, l1y - my);
134 BLK(ctx->
cur, l1x, l1y + 1) =
135 BLK(ctx->
cur, l1x - mx, l1y + 1 - my);
136 BLK(ctx->
cur, l1x + 1, l1y + 1) =
137 BLK(ctx->
cur, l1x + 1 - mx, l1y + 1 - my);
140 BLK(ctx->
cur, l1x, l1y) = bytestream2_get_byte(&ctx->
g);
141 BLK(ctx->
cur, l1x + 1, l1y) = bytestream2_get_byte(&ctx->
g);
142 BLK(ctx->
cur, l1x, l1y + 1) = bytestream2_get_byte(&ctx->
g);
143 BLK(ctx->
cur, l1x + 1, l1y + 1) = bytestream2_get_byte(&ctx->
g);
160 int l0x, l1x, l0y, l1y;
165 for (by = 0; by < h; by += 8)
166 for (bx = 0; bx < w; bx += 8) {
175 val = bytestream2_get_byte(&ctx->
g);
176 for (i = 0; i < 64; i++)
177 BLK(ctx->
cur, bx + (i & 0x7), by + (i >> 3)) = val;
179 for (i = 0; i < 64; i++)
180 BLK(ctx->
cur, bx + (i & 0x7), by + (i >> 3)) =
181 BLK(ctx->
prev, bx + (i & 0x7), by + (i >> 3));
188 for (i = 0; i < 4; i++) {
189 l0x = bx + (i & 1) * 4;
190 l0y = by + (i & 2) * 2;
195 val = bytestream2_get_byte(&ctx->
g);
196 for (j = 0; j < 16; j++)
197 BLK(ctx->
cur, l0x + (j & 3), l0y + (j >> 2)) = val;
199 val = bytestream2_get_byte(&ctx->
g);
200 mx = (val & 0xF) - 8;
202 for (j = 0; j < 16; j++)
203 BLK(ctx->
cur, l0x + (j & 3), l0y + (j >> 2)) =
204 BLK(ctx->
prev, l0x + (j & 3) + mx, l0y + (j >> 2) + my);
207 for (j = 0; j < 4; j++) {
208 l1x = l0x + (j & 1) * 2;
214 val = bytestream2_get_byte(&ctx->
g);
215 BLK(ctx->
cur, l1x, l1y) = val;
216 BLK(ctx->
cur, l1x + 1, l1y) = val;
217 BLK(ctx->
cur, l1x, l1y + 1) = val;
218 BLK(ctx->
cur, l1x + 1, l1y + 1) = val;
220 val = bytestream2_get_byte(&ctx->
g);
221 mx = (val & 0xF) - 8;
223 BLK(ctx->
cur, l1x, l1y) =
BLK(ctx->
prev, l1x + mx, l1y + my);
224 BLK(ctx->
cur, l1x + 1, l1y) =
225 BLK(ctx->
prev, l1x + 1 + mx, l1y + my);
226 BLK(ctx->
cur, l1x, l1y + 1) =
227 BLK(ctx->
prev, l1x + mx, l1y + 1 + my);
228 BLK(ctx->
cur, l1x + 1, l1y + 1) =
229 BLK(ctx->
prev, l1x + 1 + mx, l1y + 1 + my);
232 BLK(ctx->
cur, l1x, l1y) = bytestream2_get_byte(&ctx->
g);
233 BLK(ctx->
cur, l1x + 1, l1y) = bytestream2_get_byte(&ctx->
g);
234 BLK(ctx->
cur, l1x, l1y + 1) = bytestream2_get_byte(&ctx->
g);
235 BLK(ctx->
cur, l1x + 1, l1y + 1) = bytestream2_get_byte(&ctx->
g);
264 header = bytestream2_get_byte(&ctx->
g);
267 if (bytestream2_peek_byte(&ctx->
g) == 127) {
269 for (i = 0; i < 127; i++) {
270 ctx->
pal[i + (header & 0x81)] = bytestream2_get_be24(&ctx->
g);
287 for (i = 1; i <= ctx->
palsize; i++) {
288 ctx->
pal[i] = bytestream2_get_be24(&ctx->
g);
303 memcpy(frame->
data[1], ctx->
pal, 1024);
305 blocksize = bytestream2_get_byte(&ctx->
g);
307 if (blocksize != 8 && blocksize != 127) {
311 memset(ctx->
cur, 0, 320 * 200);
315 memcpy(ctx->
cur, ctx->
prev, 320 * 200);
328 out = frame->
data[0];
330 for (i = 0; i < avctx->
height; i++) {
331 memcpy(out, src, avctx->
width);
371 for (i = 0; i < 256; i++) {
372 c->
pal[i] = i * 0x10101;
377 "Extradata missing, decoding may not work properly...\n");
389 for (i = 0; i < 256; i++) {