65 int mask = 0x10000, bitbuf = 0;
66 int v, count, segments;
69 segments = bytestream2_get_le32(gb);
70 offset = bytestream2_get_le32(gb);
71 if (frame_end - frame <= offset)
77 if (mask == 0x10000) {
78 bitbuf = bytestream2_get_le16u(gb);
81 if (frame_end - frame < 2)
84 v = bytestream2_get_le16(gb);
85 offset = (v & 0x1FFF) << 1;
86 count = ((v >> 13) + 2) << 1;
87 if (frame - frame_start < offset || frame_end - frame < count)
92 *frame++ = bytestream2_get_byte(gb);
93 *frame++ = bytestream2_get_byte(gb);
105 int mask = 0x10000, bitbuf = 0;
106 int v, offset, count, segments;
108 segments = bytestream2_get_le16(gb);
112 if (mask == 0x10000) {
113 bitbuf = bytestream2_get_le16u(gb);
116 if (frame_end - frame < 2)
119 v = bytestream2_get_le16(gb);
120 offset = (v & 0x1FFF) << 1;
121 count = ((v >> 13) + 2) << 1;
122 if (frame - frame_start < offset || frame_end - frame < count)
126 }
else if (bitbuf & (mask << 1)) {
127 frame += bytestream2_get_le16(gb);
129 *frame++ = bytestream2_get_byte(gb);
130 *frame++ = bytestream2_get_byte(gb);
142 int mask = 0x10000, bitbuf = 0;
143 int i, v, offset, count, segments;
145 segments = bytestream2_get_le16(gb);
149 if (mask == 0x10000) {
150 bitbuf = bytestream2_get_le16u(gb);
155 v = bytestream2_get_le16(gb);
156 offset = (v & 0x1FFF) << 2;
157 count = ((v >> 13) + 2) << 1;
158 if (frame - frame_start < offset || frame_end - frame < count*2 + width)
160 for (i = 0; i < count; i++) {
161 frame[0] = frame[1] =
162 frame[
width] = frame[width + 1] = frame[-offset];
166 }
else if (bitbuf & (mask << 1)) {
167 v = bytestream2_get_le16(gb)*2;
168 if (frame - frame_end < v)
172 if (frame_end - frame < width + 3)
174 frame[0] = frame[1] =
175 frame[
width] = frame[width + 1] = bytestream2_get_byte(gb);
177 frame[0] = frame[1] =
178 frame[
width] = frame[width + 1] = bytestream2_get_byte(gb);
190 int count, lines, segments;
192 count = bytestream2_get_le16(gb);
195 frame += width * count;
196 lines = bytestream2_get_le16(gb);
197 if (count + lines > height)
205 segments = bytestream2_get_byteu(gb);
207 if (frame - line_ptr <= bytestream2_peek_byte(gb))
209 line_ptr += bytestream2_get_byte(gb);
210 count = (int8_t)bytestream2_get_byte(gb);
212 if (frame - line_ptr < count)
218 if (frame - line_ptr < count)
220 memset(line_ptr, bytestream2_get_byte(gb), count);
233 int count, i, v, lines, segments;
236 lines = bytestream2_get_le16(gb);
243 segments = bytestream2_get_le16u(gb);
244 while ((segments & 0xC000) == 0xC000) {
245 unsigned skip_lines = -(int16_t)segments;
246 unsigned delta = -((int16_t)segments * width);
247 if (frame_end - frame <= delta || y + lines + skip_lines > height)
251 segments = bytestream2_get_le16(gb);
253 if (segments & 0x8000) {
254 frame[width - 1] = segments & 0xFF;
255 segments = bytestream2_get_le16(gb);
258 if (frame_end - frame < width)
263 if (frame - line_ptr <= bytestream2_peek_byte(gb))
265 line_ptr += bytestream2_get_byte(gb);
266 count = (int8_t)bytestream2_get_byte(gb);
268 if (frame - line_ptr < count * 2)
272 line_ptr += count * 2;
275 if (frame - line_ptr < count * 2)
277 v = bytestream2_get_le16(gb);
278 for (i = 0; i < count; i++)
279 bytestream_put_le16(&line_ptr, v);
290 int segments = bytestream2_get_le32(gb);
296 copy = bytestream2_get_byteu(gb) * 2;
297 skip = bytestream2_get_byteu(gb) * 2;
298 if (frame_end - frame < copy + skip ||
311 memset(frame, 0, width * height);
324 "COPY",
"TSW1",
"BDLT",
"WDLT",
"TDLT",
"DSW1",
"BLCK",
"DDS1"
328 void *
data,
int *got_frame,
335 uint32_t chunk_type, chunk_size;
348 chunk_size = bytestream2_get_le32(&gb);
349 chunk_type = bytestream2_get_le32(&gb);
352 if (chunk_type == 1) {
353 pal_elems =
FFMIN(chunk_size / 3, 256);
354 for (i = 0; i < pal_elems; i++) {
355 s->
pal[i] = bytestream2_get_be24(&gb) << 2;
356 s->
pal[i] |= (s->
pal[i] >> 6) & 0x333;
359 }
else if (chunk_type <= 9) {
373 dst = frame->
data[0];
374 for (i = 0; i < avctx->
height; i++) {
375 memcpy(dst, buf, avctx->
width);
379 memcpy(frame->
data[1], s->
pal,
sizeof(s->
pal));