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-rw-r--r--core/fxcodec/jbig2/JBig2_HuffmanTable.cpp127
1 files changed, 120 insertions, 7 deletions
diff --git a/core/fxcodec/jbig2/JBig2_HuffmanTable.cpp b/core/fxcodec/jbig2/JBig2_HuffmanTable.cpp
index 988978a699..97740a55fe 100644
--- a/core/fxcodec/jbig2/JBig2_HuffmanTable.cpp
+++ b/core/fxcodec/jbig2/JBig2_HuffmanTable.cpp
@@ -11,15 +11,127 @@
#include "core/fxcodec/jbig2/JBig2_BitStream.h"
#include "core/fxcodec/jbig2/JBig2_Context.h"
-#include "core/fxcodec/jbig2/JBig2_HuffmanTable_Standard.h"
#include "core/fxcrt/fx_memory.h"
#include "third_party/base/numerics/safe_math.h"
-CJBig2_HuffmanTable::CJBig2_HuffmanTable(const JBig2TableLine* pTable,
- uint32_t nLines,
- bool bHTOOB)
- : HTOOB(bHTOOB), NTEMP(nLines) {
- m_bOK = ParseFromStandardTable(pTable);
+namespace {
+
+struct JBig2TableLine {
+ uint8_t PREFLEN;
+ uint8_t RANDELEN;
+ int32_t RANGELOW;
+};
+
+struct HuffmanTable {
+ bool HTOOB;
+ const JBig2TableLine* lines;
+ size_t size;
+};
+
+constexpr JBig2TableLine kTableLine1[] = {{1, 4, 0},
+ {2, 8, 16},
+ {3, 16, 272},
+ {0, 32, -1},
+ {3, 32, 65808}};
+
+constexpr JBig2TableLine kTableLine2[] = {{1, 0, 0}, {2, 0, 1}, {3, 0, 2},
+ {4, 3, 3}, {5, 6, 11}, {0, 32, -1},
+ {6, 32, 75}, {6, 0, 0}};
+
+constexpr JBig2TableLine kTableLine3[] = {
+ {8, 8, -256}, {1, 0, 0}, {2, 0, 1}, {3, 0, 2}, {4, 3, 3},
+ {5, 6, 11}, {8, 32, -257}, {7, 32, 75}, {6, 0, 0}};
+
+constexpr JBig2TableLine kTableLine4[] = {{1, 0, 1}, {2, 0, 2}, {3, 0, 3},
+ {4, 3, 4}, {5, 6, 12}, {0, 32, -1},
+ {5, 32, 76}};
+
+constexpr JBig2TableLine kTableLine5[] = {{7, 8, -255}, {1, 0, 1}, {2, 0, 2},
+ {3, 0, 3}, {4, 3, 4}, {5, 6, 12},
+ {7, 32, -256}, {6, 32, 76}};
+
+constexpr JBig2TableLine kTableLine6[] = {
+ {5, 10, -2048}, {4, 9, -1024}, {4, 8, -512}, {4, 7, -256}, {5, 6, -128},
+ {5, 5, -64}, {4, 5, -32}, {2, 7, 0}, {3, 7, 128}, {3, 8, 256},
+ {4, 9, 512}, {4, 10, 1024}, {6, 32, -2049}, {6, 32, 2048}};
+
+constexpr JBig2TableLine kTableLine7[] = {
+ {4, 9, -1024}, {3, 8, -512}, {4, 7, -256}, {5, 6, -128}, {5, 5, -64},
+ {4, 5, -32}, {4, 5, 0}, {5, 5, 32}, {5, 6, 64}, {4, 7, 128},
+ {3, 8, 256}, {3, 9, 512}, {3, 10, 1024}, {5, 32, -1025}, {5, 32, 2048}};
+
+constexpr JBig2TableLine kTableLine8[] = {
+ {8, 3, -15}, {9, 1, -7}, {8, 1, -5}, {9, 0, -3}, {7, 0, -2},
+ {4, 0, -1}, {2, 1, 0}, {5, 0, 2}, {6, 0, 3}, {3, 4, 4},
+ {6, 1, 20}, {4, 4, 22}, {4, 5, 38}, {5, 6, 70}, {5, 7, 134},
+ {6, 7, 262}, {7, 8, 390}, {6, 10, 646}, {9, 32, -16}, {9, 32, 1670},
+ {2, 0, 0}};
+
+constexpr JBig2TableLine kTableLine9[] = {
+ {8, 4, -31}, {9, 2, -15}, {8, 2, -11}, {9, 1, -7}, {7, 1, -5},
+ {4, 1, -3}, {3, 1, -1}, {3, 1, 1}, {5, 1, 3}, {6, 1, 5},
+ {3, 5, 7}, {6, 2, 39}, {4, 5, 43}, {4, 6, 75}, {5, 7, 139},
+ {5, 8, 267}, {6, 8, 523}, {7, 9, 779}, {6, 11, 1291}, {9, 32, -32},
+ {9, 32, 3339}, {2, 0, 0}};
+
+constexpr JBig2TableLine kTableLine10[] = {
+ {7, 4, -21}, {8, 0, -5}, {7, 0, -4}, {5, 0, -3}, {2, 2, -2},
+ {5, 0, 2}, {6, 0, 3}, {7, 0, 4}, {8, 0, 5}, {2, 6, 6},
+ {5, 5, 70}, {6, 5, 102}, {6, 6, 134}, {6, 7, 198}, {6, 8, 326},
+ {6, 9, 582}, {6, 10, 1094}, {7, 11, 2118}, {8, 32, -22}, {8, 32, 4166},
+ {2, 0, 0}};
+
+constexpr JBig2TableLine kTableLine11[] = {
+ {1, 0, 1}, {2, 1, 2}, {4, 0, 4}, {4, 1, 5}, {5, 1, 7},
+ {5, 2, 9}, {6, 2, 13}, {7, 2, 17}, {7, 3, 21}, {7, 4, 29},
+ {7, 5, 45}, {7, 6, 77}, {0, 32, 0}, {7, 32, 141}};
+
+constexpr JBig2TableLine kTableLine12[] = {
+ {1, 0, 1}, {2, 0, 2}, {3, 1, 3}, {5, 0, 5}, {5, 1, 6},
+ {6, 1, 8}, {7, 0, 10}, {7, 1, 11}, {7, 2, 13}, {7, 3, 17},
+ {7, 4, 25}, {8, 5, 41}, {0, 32, 0}, {8, 32, 73}};
+
+constexpr JBig2TableLine kTableLine13[] = {
+ {1, 0, 1}, {3, 0, 2}, {4, 0, 3}, {5, 0, 4}, {4, 1, 5},
+ {3, 3, 7}, {6, 1, 15}, {6, 2, 17}, {6, 3, 21}, {6, 4, 29},
+ {6, 5, 45}, {7, 6, 77}, {0, 32, 0}, {7, 32, 141}};
+
+constexpr JBig2TableLine kTableLine14[] = {{3, 0, -2}, {3, 0, -1}, {1, 0, 0},
+ {3, 0, 1}, {3, 0, 2}, {0, 32, -3},
+ {0, 32, 3}};
+
+constexpr JBig2TableLine kTableLine15[] = {
+ {7, 4, -24}, {6, 2, -8}, {5, 1, -4}, {4, 0, -2}, {3, 0, -1},
+ {1, 0, 0}, {3, 0, 1}, {4, 0, 2}, {5, 1, 3}, {6, 2, 5},
+ {7, 4, 9}, {7, 32, -25}, {7, 32, 25}};
+
+constexpr HuffmanTable kHuffmanTables[16] = {
+ {false, nullptr, 0}, // Zero dummy to preserve indexing.
+ {false, kTableLine1, FX_ArraySize(kTableLine1)},
+ {true, kTableLine2, FX_ArraySize(kTableLine2)},
+ {true, kTableLine3, FX_ArraySize(kTableLine3)},
+ {false, kTableLine4, FX_ArraySize(kTableLine4)},
+ {false, kTableLine5, FX_ArraySize(kTableLine5)},
+ {false, kTableLine6, FX_ArraySize(kTableLine6)},
+ {false, kTableLine7, FX_ArraySize(kTableLine7)},
+ {true, kTableLine8, FX_ArraySize(kTableLine8)},
+ {true, kTableLine9, FX_ArraySize(kTableLine9)},
+ {true, kTableLine10, FX_ArraySize(kTableLine10)},
+ {false, kTableLine11, FX_ArraySize(kTableLine11)},
+ {false, kTableLine12, FX_ArraySize(kTableLine12)},
+ {false, kTableLine13, FX_ArraySize(kTableLine13)},
+ {false, kTableLine14, FX_ArraySize(kTableLine14)},
+ {false, kTableLine15, FX_ArraySize(kTableLine15)}};
+
+} // namespace
+
+CJBig2_HuffmanTable::CJBig2_HuffmanTable(size_t idx) {
+ ASSERT(idx > 0);
+ ASSERT(idx < FX_ArraySize(kHuffmanTables));
+ const HuffmanTable& table = kHuffmanTables[idx];
+ HTOOB = table.HTOOB;
+ NTEMP = table.size;
+ m_bOK = ParseFromStandardTable(idx);
ASSERT(m_bOK);
}
@@ -30,7 +142,8 @@ CJBig2_HuffmanTable::CJBig2_HuffmanTable(CJBig2_BitStream* pStream)
CJBig2_HuffmanTable::~CJBig2_HuffmanTable() {}
-bool CJBig2_HuffmanTable::ParseFromStandardTable(const JBig2TableLine* pTable) {
+bool CJBig2_HuffmanTable::ParseFromStandardTable(size_t idx) {
+ const JBig2TableLine* pTable = kHuffmanTables[idx].lines;
CODES.resize(NTEMP);
RANGELEN.resize(NTEMP);
RANGELOW.resize(NTEMP);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-18 13:12:16 +0000