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-rw-r--r--engines/tony/mpal/lzo.cpp622
1 files changed, 311 insertions, 311 deletions
diff --git a/engines/tony/mpal/lzo.cpp b/engines/tony/mpal/lzo.cpp
index 3d0751a5ca..a04a769528 100644
--- a/engines/tony/mpal/lzo.cpp
+++ b/engines/tony/mpal/lzo.cpp
@@ -69,440 +69,440 @@ namespace Tony {
namespace MPAL {
-#define pd(a, b) ((uint32) ((a) - (b)))
+#define pd(a, b) ((uint32) ((a) - (b)))
-#define TEST_IP (ip < ip_end)
-#define TEST_OP 1
-#define NEED_IP(x) ((void) 0)
-#define NEED_OP(x) ((void) 0)
-#define TEST_LB(m_pos) ((void) 0)
+#define TEST_IP (ip < ip_end)
+#define TEST_OP 1
+#define NEED_IP(x) ((void) 0)
+#define NEED_OP(x) ((void) 0)
+#define TEST_LB(m_pos) ((void) 0)
-#define M2_MAX_OFFSET 0x0800
+#define M2_MAX_OFFSET 0x0800
#define LZO1X
/**
* Decompresses an LZO compressed resource
*/
int lzo1x_decompress(const byte *in, uint32 in_len, byte *out, uint32 *out_len) {
- register byte *op;
- register const byte *ip;
- register uint32 t = 0;
+ register byte *op;
+ register const byte *ip;
+ register uint32 t = 0;
#if defined(COPY_DICT)
- uint32 m_off;
- const byte *dict_end;
+ uint32 m_off;
+ const byte *dict_end;
#else
- register const byte *m_pos;
+ register const byte *m_pos;
#endif
- const byte * const ip_end = in + in_len;
+ const byte * const ip_end = in + in_len;
#if defined(HAVE_ANY_OP)
- byte * const op_end = out + *out_len;
+ byte * const op_end = out + *out_len;
#endif
#if defined(LZO1Z)
- uint32 last_m_off = 0;
+ uint32 last_m_off = 0;
#endif
#if defined(COPY_DICT)
- if (dict)
- {
- if (dict_len > M4_MAX_OFFSET)
- {
- dict += dict_len - M4_MAX_OFFSET;
- dict_len = M4_MAX_OFFSET;
- }
- dict_end = dict + dict_len;
- }
- else
- {
- dict_len = 0;
- dict_end = NULL;
- }
-#endif
-
- *out_len = 0;
-
- op = out;
- ip = in;
-
- if (*ip > 17)
- {
- t = *ip++ - 17;
- if (t < 4)
- goto match_next;
- assert(t > 0); NEED_OP(t); NEED_IP(t+1);
- do *op++ = *ip++; while (--t > 0);
- goto first_literal_run;
- }
-
- while (TEST_IP && TEST_OP)
- {
- t = *ip++;
- if (t >= 16)
- goto match;
- if (t == 0)
- {
- NEED_IP(1);
- while (*ip == 0)
- {
- t += 255;
- ip++;
- NEED_IP(1);
- }
- t += 15 + *ip++;
- }
- assert(t > 0); NEED_OP(t+3); NEED_IP(t+4);
+ if (dict)
+ {
+ if (dict_len > M4_MAX_OFFSET)
+ {
+ dict += dict_len - M4_MAX_OFFSET;
+ dict_len = M4_MAX_OFFSET;
+ }
+ dict_end = dict + dict_len;
+ }
+ else
+ {
+ dict_len = 0;
+ dict_end = NULL;
+ }
+#endif
+
+ *out_len = 0;
+
+ op = out;
+ ip = in;
+
+ if (*ip > 17)
+ {
+ t = *ip++ - 17;
+ if (t < 4)
+ goto match_next;
+ assert(t > 0); NEED_OP(t); NEED_IP(t+1);
+ do *op++ = *ip++; while (--t > 0);
+ goto first_literal_run;
+ }
+
+ while (TEST_IP && TEST_OP)
+ {
+ t = *ip++;
+ if (t >= 16)
+ goto match;
+ if (t == 0)
+ {
+ NEED_IP(1);
+ while (*ip == 0)
+ {
+ t += 255;
+ ip++;
+ NEED_IP(1);
+ }
+ t += 15 + *ip++;
+ }
+ assert(t > 0); NEED_OP(t+3); NEED_IP(t+4);
#if defined(LZO_UNALIGNED_OK_8) && defined(LZO_UNALIGNED_OK_4)
- t += 3;
- if (t >= 8) do
- {
- UA_COPY64(op, ip);
- op += 8; ip += 8; t -= 8;
- } while (t >= 8);
- if (t >= 4)
- {
- UA_COPY32(op, ip);
- op += 4; ip += 4; t -= 4;
- }
- if (t > 0)
- {
- *op++ = *ip++;
- if (t > 1) { *op++ = *ip++; if (t > 2) { *op++ = *ip++; } }
- }
+ t += 3;
+ if (t >= 8) do
+ {
+ UA_COPY64(op, ip);
+ op += 8; ip += 8; t -= 8;
+ } while (t >= 8);
+ if (t >= 4)
+ {
+ UA_COPY32(op, ip);
+ op += 4; ip += 4; t -= 4;
+ }
+ if (t > 0)
+ {
+ *op++ = *ip++;
+ if (t > 1) { *op++ = *ip++; if (t > 2) { *op++ = *ip++; } }
+ }
#elif defined(LZO_UNALIGNED_OK_4) || defined(LZO_ALIGNED_OK_4)
#if !defined(LZO_UNALIGNED_OK_4)
- if (PTR_ALIGNED2_4(op, ip))
- {
-#endif
- UA_COPY32(op, ip);
- op += 4; ip += 4;
- if (--t > 0)
- {
- if (t >= 4)
- {
- do {
- UA_COPY32(op, ip);
- op += 4; ip += 4; t -= 4;
- } while (t >= 4);
- if (t > 0) do *op++ = *ip++; while (--t > 0);
- }
- else
- do *op++ = *ip++; while (--t > 0);
- }
+ if (PTR_ALIGNED2_4(op, ip))
+ {
+#endif
+ UA_COPY32(op, ip);
+ op += 4; ip += 4;
+ if (--t > 0)
+ {
+ if (t >= 4)
+ {
+ do {
+ UA_COPY32(op, ip);
+ op += 4; ip += 4; t -= 4;
+ } while (t >= 4);
+ if (t > 0) do *op++ = *ip++; while (--t > 0);
+ }
+ else
+ do *op++ = *ip++; while (--t > 0);
+ }
#if !defined(LZO_UNALIGNED_OK_4)
- }
- else
+ }
+ else
#endif
#endif
#if !defined(LZO_UNALIGNED_OK_4) && !defined(LZO_UNALIGNED_OK_8)
- {
- *op++ = *ip++; *op++ = *ip++; *op++ = *ip++;
- do *op++ = *ip++; while (--t > 0);
- }
+ {
+ *op++ = *ip++; *op++ = *ip++; *op++ = *ip++;
+ do *op++ = *ip++; while (--t > 0);
+ }
#endif
first_literal_run:
- t = *ip++;
- if (t >= 16)
- goto match;
+ t = *ip++;
+ if (t >= 16)
+ goto match;
#if defined(COPY_DICT)
#if defined(LZO1Z)
- m_off = (1 + M2_MAX_OFFSET) + (t << 6) + (*ip++ >> 2);
- last_m_off = m_off;
+ m_off = (1 + M2_MAX_OFFSET) + (t << 6) + (*ip++ >> 2);
+ last_m_off = m_off;
#else
- m_off = (1 + M2_MAX_OFFSET) + (t >> 2) + (*ip++ << 2);
+ m_off = (1 + M2_MAX_OFFSET) + (t >> 2) + (*ip++ << 2);
#endif
- NEED_OP(3);
- t = 3; COPY_DICT(t, m_off)
+ NEED_OP(3);
+ t = 3; COPY_DICT(t, m_off)
#else
#if defined(LZO1Z)
- t = (1 + M2_MAX_OFFSET) + (t << 6) + (*ip++ >> 2);
- m_pos = op - t;
- last_m_off = t;
+ t = (1 + M2_MAX_OFFSET) + (t << 6) + (*ip++ >> 2);
+ m_pos = op - t;
+ last_m_off = t;
#else
- m_pos = op - (1 + M2_MAX_OFFSET);
- m_pos -= t >> 2;
- m_pos -= *ip++ << 2;
+ m_pos = op - (1 + M2_MAX_OFFSET);
+ m_pos -= t >> 2;
+ m_pos -= *ip++ << 2;
#endif
- TEST_LB(m_pos); NEED_OP(3);
- *op++ = *m_pos++; *op++ = *m_pos++; *op++ = *m_pos;
+ TEST_LB(m_pos); NEED_OP(3);
+ *op++ = *m_pos++; *op++ = *m_pos++; *op++ = *m_pos;
#endif
- goto match_done;
+ goto match_done;
- do {
+ do {
match:
- if (t >= 64)
- {
+ if (t >= 64)
+ {
#if defined(COPY_DICT)
#if defined(LZO1X)
- m_off = 1 + ((t >> 2) & 7) + (*ip++ << 3);
- t = (t >> 5) - 1;
+ m_off = 1 + ((t >> 2) & 7) + (*ip++ << 3);
+ t = (t >> 5) - 1;
#elif defined(LZO1Y)
- m_off = 1 + ((t >> 2) & 3) + (*ip++ << 2);
- t = (t >> 4) - 3;
+ m_off = 1 + ((t >> 2) & 3) + (*ip++ << 2);
+ t = (t >> 4) - 3;
#elif defined(LZO1Z)
- m_off = t & 0x1f;
- if (m_off >= 0x1c)
- m_off = last_m_off;
- else
- {
- m_off = 1 + (m_off << 6) + (*ip++ >> 2);
- last_m_off = m_off;
- }
- t = (t >> 5) - 1;
+ m_off = t & 0x1f;
+ if (m_off >= 0x1c)
+ m_off = last_m_off;
+ else
+ {
+ m_off = 1 + (m_off << 6) + (*ip++ >> 2);
+ last_m_off = m_off;
+ }
+ t = (t >> 5) - 1;
#endif
#else
#if defined(LZO1X)
- m_pos = op - 1;
- m_pos -= (t >> 2) & 7;
- m_pos -= *ip++ << 3;
- t = (t >> 5) - 1;
+ m_pos = op - 1;
+ m_pos -= (t >> 2) & 7;
+ m_pos -= *ip++ << 3;
+ t = (t >> 5) - 1;
#elif defined(LZO1Y)
- m_pos = op - 1;
- m_pos -= (t >> 2) & 3;
- m_pos -= *ip++ << 2;
- t = (t >> 4) - 3;
+ m_pos = op - 1;
+ m_pos -= (t >> 2) & 3;
+ m_pos -= *ip++ << 2;
+ t = (t >> 4) - 3;
#elif defined(LZO1Z)
- {
- uint32 off = t & 0x1f;
- m_pos = op;
- if (off >= 0x1c)
- {
- assert(last_m_off > 0);
- m_pos -= last_m_off;
- }
- else
- {
- off = 1 + (off << 6) + (*ip++ >> 2);
- m_pos -= off;
- last_m_off = off;
- }
- }
- t = (t >> 5) - 1;
-#endif
- TEST_LB(m_pos); assert(t > 0); NEED_OP(t+3-1);
- goto copy_match;
-#endif
- }
- else if (t >= 32)
- {
- t &= 31;
- if (t == 0)
- {
- NEED_IP(1);
- while (*ip == 0)
- {
- t += 255;
- ip++;
- NEED_IP(1);
- }
- t += 31 + *ip++;
- }
+ {
+ uint32 off = t & 0x1f;
+ m_pos = op;
+ if (off >= 0x1c)
+ {
+ assert(last_m_off > 0);
+ m_pos -= last_m_off;
+ }
+ else
+ {
+ off = 1 + (off << 6) + (*ip++ >> 2);
+ m_pos -= off;
+ last_m_off = off;
+ }
+ }
+ t = (t >> 5) - 1;
+#endif
+ TEST_LB(m_pos); assert(t > 0); NEED_OP(t+3-1);
+ goto copy_match;
+#endif
+ }
+ else if (t >= 32)
+ {
+ t &= 31;
+ if (t == 0)
+ {
+ NEED_IP(1);
+ while (*ip == 0)
+ {
+ t += 255;
+ ip++;
+ NEED_IP(1);
+ }
+ t += 31 + *ip++;
+ }
#if defined(COPY_DICT)
#if defined(LZO1Z)
- m_off = 1 + (ip[0] << 6) + (ip[1] >> 2);
- last_m_off = m_off;
+ m_off = 1 + (ip[0] << 6) + (ip[1] >> 2);
+ last_m_off = m_off;
#else
- m_off = 1 + (ip[0] >> 2) + (ip[1] << 6);
+ m_off = 1 + (ip[0] >> 2) + (ip[1] << 6);
#endif
#else
#if defined(LZO1Z)
- {
- uint32 off = 1 + (ip[0] << 6) + (ip[1] >> 2);
- m_pos = op - off;
- last_m_off = off;
- }
+ {
+ uint32 off = 1 + (ip[0] << 6) + (ip[1] >> 2);
+ m_pos = op - off;
+ last_m_off = off;
+ }
#elif defined(LZO_UNALIGNED_OK_2) && defined(LZO_ABI_LITTLE_ENDIAN)
- m_pos = op - 1;
- m_pos -= UA_GET16(ip) >> 2;
+ m_pos = op - 1;
+ m_pos -= UA_GET16(ip) >> 2;
#else
- m_pos = op - 1;
- m_pos -= (ip[0] >> 2) + (ip[1] << 6);
+ m_pos = op - 1;
+ m_pos -= (ip[0] >> 2) + (ip[1] << 6);
#endif
#endif
- ip += 2;
- }
- else if (t >= 16)
- {
+ ip += 2;
+ }
+ else if (t >= 16)
+ {
#if defined(COPY_DICT)
- m_off = (t & 8) << 11;
+ m_off = (t & 8) << 11;
#else
- m_pos = op;
- m_pos -= (t & 8) << 11;
-#endif
- t &= 7;
- if (t == 0)
- {
- NEED_IP(1);
- while (*ip == 0)
- {
- t += 255;
- ip++;
- NEED_IP(1);
- }
- t += 7 + *ip++;
- }
+ m_pos = op;
+ m_pos -= (t & 8) << 11;
+#endif
+ t &= 7;
+ if (t == 0)
+ {
+ NEED_IP(1);
+ while (*ip == 0)
+ {
+ t += 255;
+ ip++;
+ NEED_IP(1);
+ }
+ t += 7 + *ip++;
+ }
#if defined(COPY_DICT)
#if defined(LZO1Z)
- m_off += (ip[0] << 6) + (ip[1] >> 2);
+ m_off += (ip[0] << 6) + (ip[1] >> 2);
#else
- m_off += (ip[0] >> 2) + (ip[1] << 6);
+ m_off += (ip[0] >> 2) + (ip[1] << 6);
#endif
- ip += 2;
- if (m_off == 0)
- goto eof_found;
- m_off += 0x4000;
+ ip += 2;
+ if (m_off == 0)
+ goto eof_found;
+ m_off += 0x4000;
#if defined(LZO1Z)
- last_m_off = m_off;
+ last_m_off = m_off;
#endif
#else
#if defined(LZO1Z)
- m_pos -= (ip[0] << 6) + (ip[1] >> 2);
+ m_pos -= (ip[0] << 6) + (ip[1] >> 2);
#elif defined(LZO_UNALIGNED_OK_2) && defined(LZO_ABI_LITTLE_ENDIAN)
- m_pos -= UA_GET16(ip) >> 2;
+ m_pos -= UA_GET16(ip) >> 2;
#else
- m_pos -= (ip[0] >> 2) + (ip[1] << 6);
+ m_pos -= (ip[0] >> 2) + (ip[1] << 6);
#endif
- ip += 2;
- if (m_pos == op)
- goto eof_found;
- m_pos -= 0x4000;
+ ip += 2;
+ if (m_pos == op)
+ goto eof_found;
+ m_pos -= 0x4000;
#if defined(LZO1Z)
- last_m_off = pd((const byte *)op, m_pos);
+ last_m_off = pd((const byte *)op, m_pos);
#endif
#endif
- }
- else
- {
+ }
+ else
+ {
#if defined(COPY_DICT)
#if defined(LZO1Z)
- m_off = 1 + (t << 6) + (*ip++ >> 2);
- last_m_off = m_off;
+ m_off = 1 + (t << 6) + (*ip++ >> 2);
+ last_m_off = m_off;
#else
- m_off = 1 + (t >> 2) + (*ip++ << 2);
+ m_off = 1 + (t >> 2) + (*ip++ << 2);
#endif
- NEED_OP(2);
- t = 2; COPY_DICT(t, m_off)
+ NEED_OP(2);
+ t = 2; COPY_DICT(t, m_off)
#else
#if defined(LZO1Z)
- t = 1 + (t << 6) + (*ip++ >> 2);
- m_pos = op - t;
- last_m_off = t;
+ t = 1 + (t << 6) + (*ip++ >> 2);
+ m_pos = op - t;
+ last_m_off = t;
#else
- m_pos = op - 1;
- m_pos -= t >> 2;
- m_pos -= *ip++ << 2;
+ m_pos = op - 1;
+ m_pos -= t >> 2;
+ m_pos -= *ip++ << 2;
#endif
- TEST_LB(m_pos); NEED_OP(2);
- *op++ = *m_pos++; *op++ = *m_pos;
+ TEST_LB(m_pos); NEED_OP(2);
+ *op++ = *m_pos++; *op++ = *m_pos;
#endif
- goto match_done;
- }
+ goto match_done;
+ }
#if defined(COPY_DICT)
- NEED_OP(t+3-1);
- t += 3-1; COPY_DICT(t, m_off)
+ NEED_OP(t+3-1);
+ t += 3-1; COPY_DICT(t, m_off)
#else
- TEST_LB(m_pos); assert(t > 0); NEED_OP(t+3-1);
+ TEST_LB(m_pos); assert(t > 0); NEED_OP(t+3-1);
#if defined(LZO_UNALIGNED_OK_8) && defined(LZO_UNALIGNED_OK_4)
- if (op - m_pos >= 8)
- {
- t += (3 - 1);
- if (t >= 8) do
- {
- UA_COPY64(op, m_pos);
- op += 8; m_pos += 8; t -= 8;
- } while (t >= 8);
- if (t >= 4)
- {
- UA_COPY32(op, m_pos);
- op += 4; m_pos += 4; t -= 4;
- }
- if (t > 0)
- {
- *op++ = m_pos[0];
- if (t > 1) { *op++ = m_pos[1]; if (t > 2) { *op++ = m_pos[2]; } }
- }
- }
- else
+ if (op - m_pos >= 8)
+ {
+ t += (3 - 1);
+ if (t >= 8) do
+ {
+ UA_COPY64(op, m_pos);
+ op += 8; m_pos += 8; t -= 8;
+ } while (t >= 8);
+ if (t >= 4)
+ {
+ UA_COPY32(op, m_pos);
+ op += 4; m_pos += 4; t -= 4;
+ }
+ if (t > 0)
+ {
+ *op++ = m_pos[0];
+ if (t > 1) { *op++ = m_pos[1]; if (t > 2) { *op++ = m_pos[2]; } }
+ }
+ }
+ else
#elif defined(LZO_UNALIGNED_OK_4) || defined(LZO_ALIGNED_OK_4)
#if !defined(LZO_UNALIGNED_OK_4)
- if (t >= 2 * 4 - (3 - 1) && PTR_ALIGNED2_4(op, m_pos))
- {
- assert((op - m_pos) >= 4);
+ if (t >= 2 * 4 - (3 - 1) && PTR_ALIGNED2_4(op, m_pos))
+ {
+ assert((op - m_pos) >= 4);
#else
- if (t >= 2 * 4 - (3 - 1) && (op - m_pos) >= 4)
- {
-#endif
- UA_COPY32(op, m_pos);
- op += 4; m_pos += 4; t -= 4 - (3 - 1);
- do {
- UA_COPY32(op, m_pos);
- op += 4; m_pos += 4; t -= 4;
- } while (t >= 4);
- if (t > 0) do *op++ = *m_pos++; while (--t > 0);
- }
- else
-#endif
- {
+ if (t >= 2 * 4 - (3 - 1) && (op - m_pos) >= 4)
+ {
+#endif
+ UA_COPY32(op, m_pos);
+ op += 4; m_pos += 4; t -= 4 - (3 - 1);
+ do {
+ UA_COPY32(op, m_pos);
+ op += 4; m_pos += 4; t -= 4;
+ } while (t >= 4);
+ if (t > 0) do *op++ = *m_pos++; while (--t > 0);
+ }
+ else
+#endif
+ {
copy_match:
- *op++ = *m_pos++; *op++ = *m_pos++;
- do *op++ = *m_pos++; while (--t > 0);
- }
+ *op++ = *m_pos++; *op++ = *m_pos++;
+ do *op++ = *m_pos++; while (--t > 0);
+ }
#endif
match_done:
#if defined(LZO1Z)
- t = ip[-1] & 3;
+ t = ip[-1] & 3;
#else
- t = ip[-2] & 3;
+ t = ip[-2] & 3;
#endif
- if (t == 0)
- break;
+ if (t == 0)
+ break;
match_next:
- assert(t > 0); assert(t < 4); NEED_OP(t); NEED_IP(t+1);
+ assert(t > 0); assert(t < 4); NEED_OP(t); NEED_IP(t+1);
#if 0
- do *op++ = *ip++; while (--t > 0);
+ do *op++ = *ip++; while (--t > 0);
#else
- *op++ = *ip++;
- if (t > 1) { *op++ = *ip++; if (t > 2) { *op++ = *ip++; } }
+ *op++ = *ip++;
+ if (t > 1) { *op++ = *ip++; if (t > 2) { *op++ = *ip++; } }
#endif
- t = *ip++;
- } while (TEST_IP && TEST_OP);
- }
+ t = *ip++;
+ } while (TEST_IP && TEST_OP);
+ }
#if defined(HAVE_TEST_IP) || defined(HAVE_TEST_OP)
- *out_len = pd(op, out);
- return LZO_E_EOF_NOT_FOUND;
+ *out_len = pd(op, out);
+ return LZO_E_EOF_NOT_FOUND;
#endif
eof_found:
- assert(t == 1);
- *out_len = pd(op, out);
- return (ip == ip_end ? LZO_E_OK :
- (ip < ip_end ? LZO_E_INPUT_NOT_CONSUMED : LZO_E_INPUT_OVERRUN));
+ assert(t == 1);
+ *out_len = pd(op, out);
+ return (ip == ip_end ? LZO_E_OK :
+ (ip < ip_end ? LZO_E_INPUT_NOT_CONSUMED : LZO_E_INPUT_OVERRUN));
#if defined(HAVE_NEED_IP)
input_overrun:
- *out_len = pd(op, out);
- return LZO_E_INPUT_OVERRUN;
+ *out_len = pd(op, out);
+ return LZO_E_INPUT_OVERRUN;
#endif
#if defined(HAVE_NEED_OP)
output_overrun:
- *out_len = pd(op, out);
- return LZO_E_OUTPUT_OVERRUN;
+ *out_len = pd(op, out);
+ return LZO_E_OUTPUT_OVERRUN;
#endif
#if defined(LZO_TEST_OVERRUN_LOOKBEHIND)
lookbehind_overrun:
- *out_len = pd(op, out);
- return LZO_E_LOOKBEHIND_OVERRUN;
+ *out_len = pd(op, out);
+ return LZO_E_LOOKBEHIND_OVERRUN;
#endif
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-11 19:12:13 +0000