21 copy_or_code(lzma_simple_coder *coder, const lzma_allocator *allocator,  in copy_or_code()  argument
26 	assert(!coder->end_was_reached);  in copy_or_code()
28 	if (coder->next.code == NULL) {  in copy_or_code()
32 		if (coder->is_encoder && action == LZMA_FINISH  in copy_or_code()
34 			coder->end_was_reached = true;  in copy_or_code()
38 		const lzma_ret ret = coder->next.code(  in copy_or_code()
39 				coder->next.coder, allocator,  in copy_or_code()
44 			assert(!coder->is_encoder  in copy_or_code()
46 			coder->end_was_reached = true;  in copy_or_code()
58 call_filter(lzma_simple_coder *coder, uint8_t *buffer, size_t size)  in call_filter()  argument
60 	const size_t filtered = coder->filter(coder->simple,  in call_filter()
61 			coder->now_pos, coder->is_encoder,  in call_filter()
63 	coder->now_pos += filtered;  in call_filter()
74 	lzma_simple_coder *coder = coder_ptr;  in simple_code()  local
85 	if (coder->pos < coder->filtered) {  in simple_code()
86 		lzma_bufcpy(coder->buffer, &coder->pos, coder->filtered,  in simple_code()
91 		if (coder->pos < coder->filtered)  in simple_code()
94 		if (coder->end_was_reached) {  in simple_code()
95 			assert(coder->filtered == coder->size);  in simple_code()
101 	coder->filtered = 0;  in simple_code()
103 	assert(!coder->end_was_reached);  in simple_code()
111 	const size_t buf_avail = coder->size - coder->pos;  in simple_code()
127 			memcpy(out + *out_pos, coder->buffer + coder->pos,  in simple_code()
134 			const lzma_ret ret = copy_or_code(coder, allocator,  in simple_code()
145 				coder, out + out_start, size);  in simple_code()
148 		assert(unfiltered <= coder->allocated / 2);  in simple_code()
152 		coder->pos = 0;  in simple_code()
153 		coder->size = unfiltered;  in simple_code()
155 		if (coder->end_was_reached) {  in simple_code()
158 			coder->size = 0;  in simple_code()
164 			memcpy(coder->buffer, out + *out_pos, unfiltered);  in simple_code()
166 	} else if (coder->pos > 0) {  in simple_code()
167 		memmove(coder->buffer, coder->buffer + coder->pos, buf_avail);  in simple_code()
168 		coder->size -= coder->pos;  in simple_code()
169 		coder->pos = 0;  in simple_code()
172 	assert(coder->pos == 0);  in simple_code()
178 	if (coder->size > 0) {  in simple_code()
180 			const lzma_ret ret = copy_or_code(coder, allocator,  in simple_code()
182 					coder->buffer, &coder->size,  in simple_code()
183 					coder->allocated, action);  in simple_code()
189 		coder->filtered = call_filter(  in simple_code()
190 				coder, coder->buffer, coder->size);  in simple_code()
194 		if (coder->end_was_reached)  in simple_code()
195 			coder->filtered = coder->size;  in simple_code()
198 		lzma_bufcpy(coder->buffer, &coder->pos, coder->filtered,  in simple_code()
203 	if (coder->end_was_reached && coder->pos == coder->size)  in simple_code()
213 	lzma_simple_coder *coder = coder_ptr;  in simple_coder_end()  local
214 	lzma_next_end(&coder->next, allocator);  in simple_coder_end()
215 	lzma_free(coder->simple, allocator);  in simple_coder_end()
216 	lzma_free(coder, allocator);  in simple_coder_end()
226 	lzma_simple_coder *coder = coder_ptr;  in simple_coder_update()  local
230 			&coder->next, allocator, reversed_filters + 1);  in simple_coder_update()
243 	lzma_simple_coder *coder = next->coder;  in lzma_simple_coder_init()  local
244 	if (coder == NULL) {  in lzma_simple_coder_init()
249 		coder = lzma_alloc(sizeof(lzma_simple_coder)  in lzma_simple_coder_init()
251 		if (coder == NULL)  in lzma_simple_coder_init()
254 		next->coder = coder;  in lzma_simple_coder_init()
259 		coder->next = LZMA_NEXT_CODER_INIT;  in lzma_simple_coder_init()
260 		coder->filter = filter;  in lzma_simple_coder_init()
261 		coder->allocated = 2 * unfiltered_max;  in lzma_simple_coder_init()
265 			coder->simple = lzma_alloc(simple_size, allocator);  in lzma_simple_coder_init()
266 			if (coder->simple == NULL)  in lzma_simple_coder_init()
269 			coder->simple = NULL;  in lzma_simple_coder_init()
275 		coder->now_pos = simple->start_offset;  in lzma_simple_coder_init()
276 		if (coder->now_pos & (alignment - 1))  in lzma_simple_coder_init()
279 		coder->now_pos = 0;  in lzma_simple_coder_init()
283 	coder->is_encoder = is_encoder;  in lzma_simple_coder_init()
284 	coder->end_was_reached = false;  in lzma_simple_coder_init()
285 	coder->pos = 0;  in lzma_simple_coder_init()
286 	coder->filtered = 0;  in lzma_simple_coder_init()
287 	coder->size = 0;  in lzma_simple_coder_init()
289 	return lzma_next_filter_init(&coder->next, allocator, filters + 1);  in lzma_simple_coder_init()