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-rw-r--r--core/fxcodec/gif/cfx_lzwdecompressor.cpp63
-rw-r--r--core/fxcodec/gif/cfx_lzwdecompressor.h14
-rw-r--r--core/fxcodec/gif/cfx_lzwdecompressor_unittest.cpp186
3 files changed, 177 insertions, 86 deletions
diff --git a/core/fxcodec/gif/cfx_lzwdecompressor.cpp b/core/fxcodec/gif/cfx_lzwdecompressor.cpp
index 27e36b12e9..1ee7b5a217 100644
--- a/core/fxcodec/gif/cfx_lzwdecompressor.cpp
+++ b/core/fxcodec/gif/cfx_lzwdecompressor.cpp
@@ -18,7 +18,9 @@
std::unique_ptr<CFX_LZWDecompressor> CFX_LZWDecompressor::Create(
uint8_t color_exp,
uint8_t code_exp) {
- if (code_exp > GIF_MAX_LZW_EXP || code_exp + 1 < color_exp)
+ // color_exp generates 2^(n + 1) codes, where as the code_exp reserves 2^n.
+ // This is a quirk of the GIF spec.
+ if (code_exp > GIF_MAX_LZW_EXP || code_exp < color_exp + 1)
return nullptr;
return std::unique_ptr<CFX_LZWDecompressor>(
new CFX_LZWDecompressor(color_exp, code_exp));
@@ -27,12 +29,11 @@ std::unique_ptr<CFX_LZWDecompressor> CFX_LZWDecompressor::Create(
CFX_LZWDecompressor::CFX_LZWDecompressor(uint8_t color_exp, uint8_t code_exp)
: code_size_(code_exp),
code_size_cur_(0),
- code_color_end_(static_cast<uint16_t>(2 << color_exp)),
+ code_color_end_(static_cast<uint16_t>(1 << (color_exp + 1))),
code_clear_(static_cast<uint16_t>(1 << code_exp)),
code_end_(static_cast<uint16_t>((1 << code_exp) + 1)),
code_next_(0),
code_first_(0),
- stack_size_(0),
code_old_(0),
next_in_(nullptr),
avail_in_(0),
@@ -57,17 +58,13 @@ CFX_GifDecodeStatus CFX_LZWDecompressor::Decode(uint8_t* src_buf,
ClearTable();
uint32_t i = 0;
- if (stack_size_ != 0) {
- if (*des_size < stack_size_) {
- memcpy(des_buf, &stack_[GIF_MAX_LZW_CODE - stack_size_], *des_size);
- stack_size_ -= static_cast<uint16_t>(*des_size);
+ if (decompressed_next_ != 0) {
+ uint32_t extracted_size = ExtractData(des_buf, *des_size);
+ if (decompressed_next_ != 0)
return CFX_GifDecodeStatus::InsufficientDestSize;
- }
- memcpy(des_buf, &stack_[GIF_MAX_LZW_CODE - stack_size_], stack_size_);
- des_buf += stack_size_;
- i += stack_size_;
- stack_size_ = 0;
+ des_buf += extracted_size;
+ i += extracted_size;
}
while (i <= *des_size && (avail_in_ > 0 || bits_left_ >= code_size_cur_)) {
@@ -115,7 +112,7 @@ CFX_GifDecodeStatus CFX_LZWDecompressor::Decode(uint8_t* src_buf,
if (!DecodeString(code))
return CFX_GifDecodeStatus::Error;
- uint8_t append_char = stack_[GIF_MAX_LZW_CODE - stack_size_];
+ uint8_t append_char = decompressed_[decompressed_next_ - 1];
AddCode(code_old_, append_char);
}
}
@@ -125,16 +122,12 @@ CFX_GifDecodeStatus CFX_LZWDecompressor::Decode(uint8_t* src_buf,
}
code_old_ = code;
- if (i + stack_size_ > *des_size) {
- memcpy(des_buf, &stack_[GIF_MAX_LZW_CODE - stack_size_], *des_size - i);
- stack_size_ -= static_cast<uint16_t>(*des_size - i);
+ uint32_t extracted_size = ExtractData(des_buf, *des_size - i);
+ if (decompressed_next_ != 0)
return CFX_GifDecodeStatus::InsufficientDestSize;
- }
- memcpy(des_buf, &stack_[GIF_MAX_LZW_CODE - stack_size_], stack_size_);
- des_buf += stack_size_;
- i += stack_size_;
- stack_size_ = 0;
+ des_buf += extracted_size;
+ i += extracted_size;
}
}
@@ -150,9 +143,10 @@ void CFX_LZWDecompressor::ClearTable() {
code_next_ = code_end_ + 1;
code_old_ = static_cast<uint16_t>(-1);
memset(code_table_, 0, sizeof(code_table_));
- memset(stack_, 0, sizeof(stack_));
for (uint16_t i = 0; i < code_clear_; i++)
code_table_[i].suffix = static_cast<uint8_t>(i);
+ decompressed_.resize(code_next_ - code_clear_ + 1);
+ decompressed_next_ = 0;
}
void CFX_LZWDecompressor::AddCode(uint16_t prefix_code, uint8_t append_char) {
@@ -168,18 +162,35 @@ void CFX_LZWDecompressor::AddCode(uint16_t prefix_code, uint8_t append_char) {
}
bool CFX_LZWDecompressor::DecodeString(uint16_t code) {
- stack_size_ = 0;
+ decompressed_.resize(code_next_ - code_clear_ + 1);
+ decompressed_next_ = 0;
+
while (code >= code_clear_ && code <= code_next_) {
- if (code == code_table_[code].prefix || stack_size_ == GIF_MAX_LZW_CODE - 1)
+ if (code == code_table_[code].prefix ||
+ decompressed_next_ >= decompressed_.size())
return false;
- stack_[GIF_MAX_LZW_CODE - 1 - stack_size_++] = code_table_[code].suffix;
+ decompressed_[decompressed_next_++] = code_table_[code].suffix;
code = code_table_[code].prefix;
}
+
if (code >= code_color_end_)
return false;
- stack_[GIF_MAX_LZW_CODE - 1 - stack_size_++] = static_cast<uint8_t>(code);
+ decompressed_[decompressed_next_++] = static_cast<uint8_t>(code);
code_first_ = static_cast<uint8_t>(code);
return true;
}
+
+uint32_t CFX_LZWDecompressor::ExtractData(uint8_t* des_buf, uint32_t des_size) {
+ if (des_size == 0)
+ return 0;
+
+ uint32_t copy_size = des_size <= decompressed_next_
+ ? des_size
+ : static_cast<uint32_t>(decompressed_next_);
+ std::reverse_copy(decompressed_.data() + decompressed_next_ - copy_size,
+ decompressed_.data() + decompressed_next_, des_buf);
+ decompressed_next_ -= copy_size;
+ return copy_size;
+}
diff --git a/core/fxcodec/gif/cfx_lzwdecompressor.h b/core/fxcodec/gif/cfx_lzwdecompressor.h
index 10c0a566d7..717c055973 100644
--- a/core/fxcodec/gif/cfx_lzwdecompressor.h
+++ b/core/fxcodec/gif/cfx_lzwdecompressor.h
@@ -29,11 +29,21 @@ class CFX_LZWDecompressor {
uint8_t* des_buf,
uint32_t* des_size);
+ // Used by unittests, should not be called in production code.
+ uint32_t ExtractDataForTest(uint8_t* des_buf, uint32_t des_size) {
+ return ExtractData(des_buf, des_size);
+ }
+
+ std::vector<uint8_t>* DecompressedForTest() { return &decompressed_; }
+
+ size_t* DecompressedNextForTest() { return &decompressed_next_; }
+
private:
CFX_LZWDecompressor(uint8_t color_exp, uint8_t code_exp);
void ClearTable();
void AddCode(uint16_t prefix_code, uint8_t append_char);
bool DecodeString(uint16_t code);
+ uint32_t ExtractData(uint8_t* des_buf, uint32_t des_size);
uint8_t code_size_;
uint8_t code_size_cur_;
@@ -42,8 +52,8 @@ class CFX_LZWDecompressor {
uint16_t code_end_;
uint16_t code_next_;
uint8_t code_first_;
- uint8_t stack_[GIF_MAX_LZW_CODE];
- size_t stack_size_;
+ std::vector<uint8_t> decompressed_;
+ size_t decompressed_next_;
CodeEntry code_table_[GIF_MAX_LZW_CODE];
uint16_t code_old_;
uint8_t* next_in_;
diff --git a/core/fxcodec/gif/cfx_lzwdecompressor_unittest.cpp b/core/fxcodec/gif/cfx_lzwdecompressor_unittest.cpp
index cc3ce6367d..0d0906eb10 100644
--- a/core/fxcodec/gif/cfx_lzwdecompressor_unittest.cpp
+++ b/core/fxcodec/gif/cfx_lzwdecompressor_unittest.cpp
@@ -8,16 +8,79 @@
#include "testing/gtest/include/gtest/gtest.h"
TEST(CFX_LZWDecompressor, CreateBadParams) {
- EXPECT_EQ(nullptr, CFX_LZWDecompressor::Create(0x10, 0x2));
- EXPECT_EQ(nullptr, CFX_LZWDecompressor::Create(0x4, 0x0F));
+ EXPECT_EQ(nullptr, CFX_LZWDecompressor::Create(0x10, 0x02));
+ EXPECT_EQ(nullptr, CFX_LZWDecompressor::Create(0x04, 0x0F));
+ EXPECT_EQ(nullptr, CFX_LZWDecompressor::Create(0x02, 0x02));
+}
+
+TEST(CFX_LZWDecompressor, ExtractData) {
+ uint8_t palette_exp = 0x1;
+ uint8_t code_exp = 0x2;
+ auto decompressor = CFX_LZWDecompressor::Create(palette_exp, code_exp);
+ ASSERT_NE(nullptr, decompressor);
+
+ // Check that 0 length extract does nothing
+ {
+ std::vector<uint8_t>* decompressed = decompressor->DecompressedForTest();
+ *decompressed = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
+ *(decompressor->DecompressedNextForTest()) = decompressed->size();
+ uint8_t des_buf[20];
+ memset(des_buf, static_cast<uint8_t>(-1), sizeof(des_buf));
+
+ EXPECT_EQ(0u, decompressor->ExtractDataForTest(des_buf, 0));
+ for (size_t i = 0; i < FX_ArraySize(des_buf); ++i)
+ EXPECT_EQ(static_cast<uint8_t>(-1), des_buf[i]);
+
+ EXPECT_EQ(10u, *(decompressor->DecompressedNextForTest()));
+ for (size_t i = 0; i < *(decompressor->DecompressedNextForTest()); ++i)
+ EXPECT_EQ(i, decompressed->operator[](i));
+ }
+
+ // Check that less than decompressed size only gets the expected number
+ {
+ std::vector<uint8_t>* decompressed = decompressor->DecompressedForTest();
+ *decompressed = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
+ *(decompressor->DecompressedNextForTest()) = decompressed->size();
+ uint8_t des_buf[20];
+ memset(des_buf, static_cast<uint8_t>(-1), sizeof(des_buf));
+
+ EXPECT_EQ(5u, decompressor->ExtractDataForTest(des_buf, 5));
+ size_t i = 0;
+ for (; i < 5; ++i)
+ EXPECT_EQ(9 - i, des_buf[i]);
+ for (; i < FX_ArraySize(des_buf); ++i)
+ EXPECT_EQ(static_cast<uint8_t>(-1), des_buf[i]);
+
+ EXPECT_EQ(5u, *(decompressor->DecompressedNextForTest()));
+ for (i = 0; i < *(decompressor->DecompressedNextForTest()); ++i)
+ EXPECT_EQ(i, decompressed->operator[](i));
+ }
+
+ // Check that greater than decompressed size depletes the decompressor
+ {
+ std::vector<uint8_t>* decompressed = decompressor->DecompressedForTest();
+ *decompressed = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9};
+ *(decompressor->DecompressedNextForTest()) = decompressed->size();
+ uint8_t des_buf[20];
+ memset(des_buf, static_cast<uint8_t>(-1), sizeof(des_buf));
+
+ EXPECT_EQ(10u,
+ decompressor->ExtractDataForTest(des_buf, FX_ArraySize(des_buf)));
+ size_t i = 0;
+ for (; i < 10; ++i)
+ EXPECT_EQ(9 - i, des_buf[i]);
+ for (; i < FX_ArraySize(des_buf); ++i)
+ EXPECT_EQ(static_cast<uint8_t>(-1), des_buf[i]);
+
+ EXPECT_EQ(0u, *(decompressor->DecompressedNextForTest()));
+ }
}
TEST(CFX_LZWDecompressor, DecodeBadParams) {
uint8_t palette_exp = 0x0;
uint8_t code_exp = 0x2;
-
- auto decoder = CFX_LZWDecompressor::Create(palette_exp, code_exp);
- ASSERT_NE(nullptr, decoder);
+ auto decompressor = CFX_LZWDecompressor::Create(palette_exp, code_exp);
+ ASSERT_NE(nullptr, decompressor);
uint8_t image_data[10];
uint32_t image_size = FX_ArraySize(image_data);
@@ -25,36 +88,40 @@ TEST(CFX_LZWDecompressor, DecodeBadParams) {
uint8_t output_data[10];
uint32_t output_size = FX_ArraySize(output_data);
+ EXPECT_EQ(
+ CFX_GifDecodeStatus::Error,
+ decompressor->Decode(nullptr, image_size, output_data, &output_size));
EXPECT_EQ(CFX_GifDecodeStatus::Error,
- decoder->Decode(nullptr, image_size, output_data, &output_size));
+ decompressor->Decode(image_data, 0, output_data, &output_size));
+ EXPECT_EQ(
+ CFX_GifDecodeStatus::Error,
+ decompressor->Decode(image_data, image_size, nullptr, &output_size));
EXPECT_EQ(CFX_GifDecodeStatus::Error,
- decoder->Decode(image_data, 0, output_data, &output_size));
- EXPECT_EQ(CFX_GifDecodeStatus::Error,
- decoder->Decode(image_data, image_size, nullptr, &output_size));
- EXPECT_EQ(CFX_GifDecodeStatus::Error,
- decoder->Decode(image_data, image_size, output_data, nullptr));
+ decompressor->Decode(image_data, image_size, output_data, nullptr));
output_size = 0;
- EXPECT_EQ(CFX_GifDecodeStatus::InsufficientDestSize,
- decoder->Decode(image_data, image_size, output_data, &output_size));
+ EXPECT_EQ(
+ CFX_GifDecodeStatus::InsufficientDestSize,
+ decompressor->Decode(image_data, image_size, output_data, &output_size));
}
TEST(CFX_LZWDecompressor, Decode1x1SingleColour) {
uint8_t palette_exp = 0x0;
uint8_t code_exp = 0x2;
-
- auto decoder = CFX_LZWDecompressor::Create(palette_exp, code_exp);
- ASSERT_NE(nullptr, decoder);
+ auto decompressor = CFX_LZWDecompressor::Create(palette_exp, code_exp);
+ ASSERT_NE(nullptr, decompressor);
uint8_t image_data[] = {0x44, 0x01};
uint32_t image_size = FX_ArraySize(image_data);
- uint8_t output_data[1];
+ uint8_t expected_data[] = {0x00};
+ uint8_t output_data[FX_ArraySize(expected_data)];
+ memset(output_data, 0, sizeof(output_data));
uint32_t output_size = FX_ArraySize(output_data);
- EXPECT_EQ(CFX_GifDecodeStatus::Success,
- decoder->Decode(image_data, image_size, output_data, &output_size));
- uint8_t expected_data[] = {0x00};
+ EXPECT_EQ(
+ CFX_GifDecodeStatus::Success,
+ decompressor->Decode(image_data, image_size, output_data, &output_size));
EXPECT_EQ(FX_ArraySize(output_data), output_size);
EXPECT_TRUE(0 == memcmp(expected_data, output_data, sizeof(expected_data)));
@@ -63,29 +130,30 @@ TEST(CFX_LZWDecompressor, Decode1x1SingleColour) {
TEST(CFX_LZWDecompressor, Decode10x10SingleColour) {
uint8_t palette_exp = 0x0;
uint8_t code_exp = 0x2;
-
- auto decoder = CFX_LZWDecompressor::Create(palette_exp, code_exp);
- ASSERT_NE(nullptr, decoder);
+ auto decompressor = CFX_LZWDecompressor::Create(palette_exp, code_exp);
+ ASSERT_NE(nullptr, decompressor);
uint8_t image_data[] = {0x84, 0x8F, 0xA9, 0xCB, 0xED, 0x0F, 0x63, 0x2B};
uint32_t image_size = FX_ArraySize(image_data);
- uint8_t output_data[100];
+ uint8_t expected_data[] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
+ uint8_t output_data[FX_ArraySize(expected_data)];
memset(output_data, 0, sizeof(output_data));
uint32_t output_size = FX_ArraySize(output_data);
- EXPECT_EQ(CFX_GifDecodeStatus::Success,
- decoder->Decode(image_data, image_size, output_data, &output_size));
- uint8_t expected_data[] = {
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00, 0x00};
+ EXPECT_EQ(
+ CFX_GifDecodeStatus::Success,
+ decompressor->Decode(image_data, image_size, output_data, &output_size));
EXPECT_EQ(FX_ArraySize(output_data), output_size);
EXPECT_TRUE(0 == memcmp(expected_data, output_data, sizeof(expected_data)));
@@ -94,31 +162,33 @@ TEST(CFX_LZWDecompressor, Decode10x10SingleColour) {
TEST(CFX_LZWDecompressor, Decode10x10MultipleColour) {
uint8_t palette_exp = 0x1;
uint8_t code_exp = 0x2;
-
- auto decoder = CFX_LZWDecompressor::Create(palette_exp, code_exp);
- ASSERT_NE(nullptr, decoder);
+ auto decompressor = CFX_LZWDecompressor::Create(palette_exp, code_exp);
+ ASSERT_NE(nullptr, decompressor);
uint8_t image_data[] = {0x8C, 0x2D, 0x99, 0x87, 0x2A, 0x1C, 0xDC, 0x33,
0xA0, 0x02, 0x75, 0xEC, 0x95, 0xFA, 0xA8, 0xDE,
0x60, 0x8C, 0x04, 0x91, 0x4C, 0x01};
uint32_t image_size = FX_ArraySize(image_data);
- uint8_t output_data[100];
+ uint8_t expected_data[] = {
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02,
+ 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x02, 0x02, 0x02,
+ 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x02, 0x02, 0x02,
+ 0x02, 0x02, 0x02, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01,
+ 0x02, 0x02, 0x02, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x01, 0x01,
+ 0x02, 0x02, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x01, 0x01};
+
+ uint8_t output_data[FX_ArraySize(expected_data)];
memset(output_data, 0, sizeof(output_data));
uint32_t output_size = FX_ArraySize(output_data);
- EXPECT_EQ(CFX_GifDecodeStatus::Success,
- decoder->Decode(image_data, image_size, output_data, &output_size));
- uint8_t expected_data[] = {
- 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x01,
- 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00,
- 0x00, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x02,
- 0x02, 0x02, 0x02, 0x02, 0x02, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01,
- 0x02, 0x02, 0x02, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x02, 0x02,
- 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02,
- 0x02, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x02, 0x02, 0x02, 0x02, 0x01,
- 0x01, 0x01, 0x01, 0x01};
+ EXPECT_EQ(
+ CFX_GifDecodeStatus::Success,
+ decompressor->Decode(image_data, image_size, output_data, &output_size));
EXPECT_EQ(FX_ArraySize(output_data), output_size);
EXPECT_TRUE(0 == memcmp(expected_data, output_data, sizeof(expected_data)));
@@ -128,9 +198,8 @@ TEST(CFX_LZWDecompressor, HandleColourCodeOutOfPalette) {
uint8_t palette_exp = 0x2; // Image uses 10 colours, so the palette exp
// should be 3, 2^(3+1) = 16 colours.
uint8_t code_exp = 0x4;
-
- auto decoder = CFX_LZWDecompressor::Create(palette_exp, code_exp);
- ASSERT_NE(nullptr, decoder);
+ auto decompressor = CFX_LZWDecompressor::Create(palette_exp, code_exp);
+ ASSERT_NE(nullptr, decompressor);
uint8_t image_data[] = {0x30, 0xC9, 0x49, 0x81, 0xBD, 0x78, 0xE8, 0xCD,
0x89, 0xFF, 0x60, 0x20, 0x8E, 0xE4, 0x61, 0x9E,
@@ -138,10 +207,11 @@ TEST(CFX_LZWDecompressor, HandleColourCodeOutOfPalette) {
0xCF, 0x74, 0x61, 0xDF, 0x78, 0x04};
uint32_t image_size = FX_ArraySize(image_data);
- uint8_t output_data[100];
+ uint8_t output_data[100]; // The uncompressed data is for a 10x10 image
memset(output_data, 0, sizeof(output_data));
uint32_t output_size = FX_ArraySize(output_data);
- EXPECT_EQ(CFX_GifDecodeStatus::Error,
- decoder->Decode(image_data, image_size, output_data, &output_size));
+ EXPECT_EQ(
+ CFX_GifDecodeStatus::Error,
+ decompressor->Decode(image_data, image_size, output_data, &output_size));
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 12:41:36 +0000