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-rw-r--r--core/fxcodec/gif/cfx_gifcontext.cpp4
-rw-r--r--core/fxcodec/gif/cfx_gifcontext.h3
-rw-r--r--core/fxcodec/gif/cfx_gifcontext_unittest.cpp174
3 files changed, 99 insertions, 82 deletions
diff --git a/core/fxcodec/gif/cfx_gifcontext.cpp b/core/fxcodec/gif/cfx_gifcontext.cpp
index 4083072fbe..f746bc13c5 100644
--- a/core/fxcodec/gif/cfx_gifcontext.cpp
+++ b/core/fxcodec/gif/cfx_gifcontext.cpp
@@ -342,8 +342,8 @@ CFX_GifDecodeStatus CFX_GifContext::LoadFrame(int32_t frame_num) {
return CFX_GifDecodeStatus::Error;
}
-void CFX_GifContext::SetInputBuffer(uint8_t* src_buf, uint32_t src_size) {
- input_buffer_ = pdfium::MakeRetain<CFX_CodecMemory>(src_buf, src_size);
+void CFX_GifContext::SetInputBuffer(pdfium::span<uint8_t> src_buf) {
+ input_buffer_ = pdfium::MakeRetain<CFX_CodecMemory>(src_buf);
}
uint32_t CFX_GifContext::GetAvailInput(uint8_t** avail_buf) const {
diff --git a/core/fxcodec/gif/cfx_gifcontext.h b/core/fxcodec/gif/cfx_gifcontext.h
index f96cf058b2..90657b05bb 100644
--- a/core/fxcodec/gif/cfx_gifcontext.h
+++ b/core/fxcodec/gif/cfx_gifcontext.h
@@ -16,6 +16,7 @@
#include "core/fxcodec/gif/cfx_lzwdecompressor.h"
#include "core/fxcrt/fx_string.h"
#include "core/fxcrt/unowned_ptr.h"
+#include "third_party/base/span.h"
class CFX_GifContext : public CCodec_GifModule::Context {
public:
@@ -40,7 +41,7 @@ class CFX_GifContext : public CCodec_GifModule::Context {
CFX_GifDecodeStatus ReadHeader();
CFX_GifDecodeStatus GetFrame();
CFX_GifDecodeStatus LoadFrame(int32_t frame_num);
- void SetInputBuffer(uint8_t* src_buf, uint32_t src_size);
+ void SetInputBuffer(pdfium::span<uint8_t> src_buf);
uint32_t GetAvailInput(uint8_t** avail_buf) const;
size_t GetFrameNum() const { return images_.size(); }
diff --git a/core/fxcodec/gif/cfx_gifcontext_unittest.cpp b/core/fxcodec/gif/cfx_gifcontext_unittest.cpp
index d6cfa1fd0d..0d8941f72f 100644
--- a/core/fxcodec/gif/cfx_gifcontext_unittest.cpp
+++ b/core/fxcodec/gif/cfx_gifcontext_unittest.cpp
@@ -22,122 +22,134 @@ class CFX_GifContextForTest : public CFX_GifContext {
};
TEST(CFX_GifContext, SetInputBuffer) {
- CFX_GifContextForTest context(nullptr, nullptr);
+ uint8_t buffer[] = {0x00, 0x01, 0x02};
+ {
+ // Context must not outlive its buffers.
+ CFX_GifContextForTest context(nullptr, nullptr);
- context.SetInputBuffer(nullptr, 0);
- EXPECT_EQ(nullptr, context.InputBuffer()->GetBuffer());
- EXPECT_EQ(0u, context.InputBuffer()->GetSize());
- EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
+ context.SetInputBuffer({nullptr, 0});
+ EXPECT_EQ(nullptr, context.InputBuffer()->GetBuffer());
+ EXPECT_EQ(0u, context.InputBuffer()->GetSize());
+ EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
- context.SetInputBuffer(nullptr, 100);
- EXPECT_EQ(nullptr, context.InputBuffer()->GetBuffer());
- EXPECT_EQ(100u, context.InputBuffer()->GetSize());
- EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
+ context.SetInputBuffer({nullptr, 100});
+ EXPECT_EQ(nullptr, context.InputBuffer()->GetBuffer());
+ EXPECT_EQ(100u, context.InputBuffer()->GetSize());
+ EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
- uint8_t buffer[] = {0x00, 0x01, 0x02};
- context.SetInputBuffer(buffer, 0);
- EXPECT_EQ(buffer, context.InputBuffer()->GetBuffer());
- EXPECT_EQ(0u, context.InputBuffer()->GetSize());
- EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
-
- context.SetInputBuffer(buffer, 3);
- EXPECT_EQ(buffer, context.InputBuffer()->GetBuffer());
- EXPECT_EQ(3u, context.InputBuffer()->GetSize());
- EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
-
- context.SetInputBuffer(buffer, 100);
- EXPECT_EQ(buffer, context.InputBuffer()->GetBuffer());
- EXPECT_EQ(100u, context.InputBuffer()->GetSize());
- EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
-}
+ context.SetInputBuffer({buffer, 0});
+ EXPECT_EQ(buffer, context.InputBuffer()->GetBuffer());
+ EXPECT_EQ(0u, context.InputBuffer()->GetSize());
+ EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
-TEST(CFX_GifContext, ReadData) {
- CFX_GifContextForTest context(nullptr, nullptr);
+ context.SetInputBuffer({buffer, 3});
+ EXPECT_EQ(buffer, context.InputBuffer()->GetBuffer());
+ EXPECT_EQ(3u, context.InputBuffer()->GetSize());
+ EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
- context.SetInputBuffer(nullptr, 0);
- EXPECT_FALSE(context.ReadData(nullptr, 0));
- EXPECT_FALSE(context.ReadData(nullptr, 10));
+ context.SetInputBuffer({buffer, 100});
+ EXPECT_EQ(buffer, context.InputBuffer()->GetBuffer());
+ EXPECT_EQ(100u, context.InputBuffer()->GetSize());
+ EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
+ }
+}
+TEST(CFX_GifContext, ReadData) {
std::vector<uint8_t> dest_buffer;
- EXPECT_FALSE(context.ReadData(dest_buffer.data(), 0));
- EXPECT_FALSE(context.ReadData(dest_buffer.data(), 10));
-
uint8_t src_buffer[] = {0x00, 0x01, 0x02, 0x03, 0x04,
0x05, 0x06, 0x07, 0x08, 0x09};
- context.SetInputBuffer(src_buffer, 0);
- dest_buffer.resize(sizeof(src_buffer));
- EXPECT_FALSE(context.ReadData(dest_buffer.data(), sizeof(src_buffer)));
-
- context.SetInputBuffer(src_buffer, 1);
- EXPECT_FALSE(context.ReadData(dest_buffer.data(), sizeof(src_buffer)));
- EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
- EXPECT_FALSE(context.ReadData(nullptr, sizeof(src_buffer)));
- EXPECT_FALSE(context.ReadData(nullptr, 1));
- EXPECT_TRUE(context.ReadData(dest_buffer.data(), 1));
- EXPECT_EQ(src_buffer[0], dest_buffer[0]);
-
- context.SetInputBuffer(src_buffer, sizeof(src_buffer));
- EXPECT_FALSE(context.ReadData(nullptr, sizeof(src_buffer)));
- EXPECT_TRUE(context.ReadData(dest_buffer.data(), sizeof(src_buffer)));
- for (size_t i = 0; i < sizeof(src_buffer); i++)
- EXPECT_EQ(src_buffer[i], dest_buffer[i]);
-
- context.SetInputBuffer(src_buffer, sizeof(src_buffer));
- for (size_t i = 0; i < sizeof(src_buffer); i++) {
+ {
+ // Context must not outlive its buffers.
+ CFX_GifContextForTest context(nullptr, nullptr);
+
+ context.SetInputBuffer({nullptr, 0});
+ EXPECT_FALSE(context.ReadData(nullptr, 0));
+ EXPECT_FALSE(context.ReadData(nullptr, 10));
+
+ EXPECT_FALSE(context.ReadData(dest_buffer.data(), 0));
+ EXPECT_FALSE(context.ReadData(dest_buffer.data(), 10));
+
+ context.SetInputBuffer({src_buffer, 0});
+ dest_buffer.resize(sizeof(src_buffer));
+ EXPECT_FALSE(context.ReadData(dest_buffer.data(), sizeof(src_buffer)));
+
+ context.SetInputBuffer({src_buffer, 1});
+ EXPECT_FALSE(context.ReadData(dest_buffer.data(), sizeof(src_buffer)));
+ EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
+ EXPECT_FALSE(context.ReadData(nullptr, sizeof(src_buffer)));
+ EXPECT_FALSE(context.ReadData(nullptr, 1));
EXPECT_TRUE(context.ReadData(dest_buffer.data(), 1));
- EXPECT_EQ(src_buffer[i], dest_buffer[0]);
+ EXPECT_EQ(src_buffer[0], dest_buffer[0]);
+
+ context.SetInputBuffer(src_buffer);
+ EXPECT_FALSE(context.ReadData(nullptr, sizeof(src_buffer)));
+ EXPECT_TRUE(context.ReadData(dest_buffer.data(), sizeof(src_buffer)));
+ for (size_t i = 0; i < sizeof(src_buffer); i++)
+ EXPECT_EQ(src_buffer[i], dest_buffer[i]);
+
+ context.SetInputBuffer(src_buffer);
+ for (size_t i = 0; i < sizeof(src_buffer); i++) {
+ EXPECT_TRUE(context.ReadData(dest_buffer.data(), 1));
+ EXPECT_EQ(src_buffer[i], dest_buffer[0]);
+ }
}
}
TEST(CFX_GifContext, ReadGifSignature) {
CFX_GifContextForTest context(nullptr, nullptr);
-
{
uint8_t data[1];
- context.SetInputBuffer(data, 0);
+ context.SetInputBuffer({data, 0});
EXPECT_EQ(CFX_GifDecodeStatus::Unfinished, context.ReadGifSignature());
EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
+ context.SetInputBuffer({});
}
// Make sure testing the entire signature
{
uint8_t data[] = {'G', 'I', 'F'};
- context.SetInputBuffer(data, sizeof(data));
+ context.SetInputBuffer(data);
EXPECT_EQ(CFX_GifDecodeStatus::Unfinished, context.ReadGifSignature());
EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
+ context.SetInputBuffer({});
}
{
uint8_t data[] = {'N', 'O', 'T', 'G', 'I', 'F'};
- context.SetInputBuffer(data, sizeof(data));
+ context.SetInputBuffer(data);
EXPECT_EQ(CFX_GifDecodeStatus::Error, context.ReadGifSignature());
EXPECT_EQ(6u, context.InputBuffer()->GetPosition());
+ context.SetInputBuffer({});
}
// Make sure not matching GIF8*a
{
uint8_t data[] = {'G', 'I', 'F', '8', '0', 'a'};
- context.SetInputBuffer(data, sizeof(data));
+ context.SetInputBuffer(data);
EXPECT_EQ(CFX_GifDecodeStatus::Error, context.ReadGifSignature());
EXPECT_EQ(6u, context.InputBuffer()->GetPosition());
+ context.SetInputBuffer({});
}
// Make sure not matching GIF**a
{
uint8_t data[] = {'G', 'I', 'F', '9', '2', 'a'};
- context.SetInputBuffer(data, sizeof(data));
+ context.SetInputBuffer(data);
EXPECT_EQ(CFX_GifDecodeStatus::Error, context.ReadGifSignature());
EXPECT_EQ(6u, context.InputBuffer()->GetPosition());
+ context.SetInputBuffer({});
}
// One valid signature
{
uint8_t data[] = {'G', 'I', 'F', '8', '7', 'a'};
- context.SetInputBuffer(data, sizeof(data));
+ context.SetInputBuffer(data);
EXPECT_EQ(CFX_GifDecodeStatus::Success, context.ReadGifSignature());
EXPECT_EQ(6u, context.InputBuffer()->GetPosition());
+ context.SetInputBuffer({});
}
// The other valid signature
{
uint8_t data[] = {'G', 'I', 'F', '8', '9', 'a'};
- context.SetInputBuffer(data, sizeof(data));
+ context.SetInputBuffer(data);
EXPECT_EQ(CFX_GifDecodeStatus::Success, context.ReadGifSignature());
EXPECT_EQ(6u, context.InputBuffer()->GetPosition());
+ context.SetInputBuffer({});
}
}
@@ -145,15 +157,16 @@ TEST(CFX_GifContext, ReadLocalScreenDescriptor) {
CFX_GifContextForTest context(nullptr, nullptr);
{
uint8_t data[1];
- context.SetInputBuffer(data, 0);
+ context.SetInputBuffer({data, 0});
EXPECT_EQ(CFX_GifDecodeStatus::Unfinished,
context.ReadLogicalScreenDescriptor());
+ context.SetInputBuffer({});
}
// LSD with all the values zero'd
{
uint8_t lsd[sizeof(CFX_GifLocalScreenDescriptor)];
memset(&lsd, 0, sizeof(CFX_GifLocalScreenDescriptor));
- context.SetInputBuffer(lsd, sizeof(CFX_GifLocalScreenDescriptor));
+ context.SetInputBuffer(lsd);
EXPECT_EQ(CFX_GifDecodeStatus::Success,
context.ReadLogicalScreenDescriptor());
@@ -164,12 +177,13 @@ TEST(CFX_GifContext, ReadLocalScreenDescriptor) {
EXPECT_EQ(0, context.height_);
EXPECT_EQ(0u, context.bc_index_);
EXPECT_EQ(0u, context.pixel_aspect_);
+ context.SetInputBuffer({});
}
// LSD with no global palette
{
uint8_t lsd[sizeof(CFX_GifLocalScreenDescriptor)] = {0x0A, 0x00, 0x00, 0x0F,
0x00, 0x01, 0x02};
- context.SetInputBuffer(lsd, sizeof(CFX_GifLocalScreenDescriptor));
+ context.SetInputBuffer(lsd);
EXPECT_EQ(CFX_GifDecodeStatus::Success,
context.ReadLogicalScreenDescriptor());
@@ -180,17 +194,19 @@ TEST(CFX_GifContext, ReadLocalScreenDescriptor) {
EXPECT_EQ(0x0F00, context.height_);
EXPECT_EQ(0u, context.bc_index_); // bc_index_ is 0 if no global palette
EXPECT_EQ(2u, context.pixel_aspect_);
+ context.SetInputBuffer({});
}
// LSD with global palette bit set, but no global palette
{
uint8_t lsd[sizeof(CFX_GifLocalScreenDescriptor)] = {0x0A, 0x00, 0x00, 0x0F,
0x80, 0x01, 0x02};
- context.SetInputBuffer(lsd, sizeof(CFX_GifLocalScreenDescriptor));
+ context.SetInputBuffer(lsd);
EXPECT_EQ(CFX_GifDecodeStatus::Unfinished,
context.ReadLogicalScreenDescriptor());
EXPECT_EQ(0u, context.InputBuffer()->GetPosition());
+ context.SetInputBuffer({});
}
// LSD with global palette
{
@@ -199,7 +215,7 @@ TEST(CFX_GifContext, ReadLocalScreenDescriptor) {
uint8_t palette[4 * sizeof(CFX_GifPalette)];
} data = {{0x0A, 0x00, 0x00, 0x0F, 0xA9, 0x01, 0x02},
{0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1}};
- context.SetInputBuffer(reinterpret_cast<uint8_t*>(&data), sizeof(data));
+ context.SetInputBuffer({reinterpret_cast<uint8_t*>(&data), sizeof(data)});
EXPECT_EQ(CFX_GifDecodeStatus::Success,
context.ReadLogicalScreenDescriptor());
@@ -209,12 +225,12 @@ TEST(CFX_GifContext, ReadLocalScreenDescriptor) {
EXPECT_EQ(0x0F00, context.height_);
EXPECT_EQ(1u, context.bc_index_);
EXPECT_EQ(2u, context.pixel_aspect_);
-
EXPECT_EQ(1u, context.global_pal_exp_);
EXPECT_EQ(1, context.global_sort_flag_);
EXPECT_EQ(2, context.global_color_resolution_);
EXPECT_EQ(0, memcmp(data.palette, context.global_palette_.data(),
sizeof(data.palette)));
+ context.SetInputBuffer({});
}
}
@@ -227,21 +243,21 @@ TEST(CFX_GifContext, ReadHeader) {
uint8_t lsd[sizeof(CFX_GifLocalScreenDescriptor)];
} data = {{'N', 'O', 'T', 'G', 'I', 'F'},
{0x0A, 0x00, 0x00, 0x0F, 0x00, 0x01, 0x02}};
- context.SetInputBuffer(reinterpret_cast<uint8_t*>(&data), sizeof(data));
+ context.SetInputBuffer({reinterpret_cast<uint8_t*>(&data), sizeof(data)});
EXPECT_EQ(CFX_GifDecodeStatus::Error, context.ReadHeader());
-
EXPECT_EQ(sizeof(data.signature), context.InputBuffer()->GetPosition());
+ context.SetInputBuffer({});
}
// Short after signature
{
uint8_t signature[] = {'G', 'I', 'F', '8', '7', 'a'};
- context.SetInputBuffer(reinterpret_cast<uint8_t*>(&signature),
- sizeof(signature));
+ context.SetInputBuffer(
+ {reinterpret_cast<uint8_t*>(&signature), sizeof(signature)});
EXPECT_EQ(CFX_GifDecodeStatus::Unfinished, context.ReadHeader());
-
EXPECT_EQ(sizeof(signature), context.InputBuffer()->GetPosition());
+ context.SetInputBuffer({});
}
// Success without global palette
{
@@ -250,15 +266,15 @@ TEST(CFX_GifContext, ReadHeader) {
uint8_t lsd[sizeof(CFX_GifLocalScreenDescriptor)];
} data = {{'G', 'I', 'F', '8', '7', 'a'},
{0x0A, 0x00, 0x00, 0x0F, 0x00, 0x01, 0x02}};
- context.SetInputBuffer(reinterpret_cast<uint8_t*>(&data), sizeof(data));
+ context.SetInputBuffer({reinterpret_cast<uint8_t*>(&data), sizeof(data)});
EXPECT_EQ(CFX_GifDecodeStatus::Success, context.ReadHeader());
-
EXPECT_EQ(sizeof(data), context.InputBuffer()->GetPosition());
EXPECT_EQ(0x000A, context.width_);
EXPECT_EQ(0x0F00, context.height_);
EXPECT_EQ(0u, context.bc_index_); // bc_index_ is 0 if no global palette
EXPECT_EQ(2u, context.pixel_aspect_);
+ context.SetInputBuffer({});
}
// Missing Global Palette
{
@@ -267,11 +283,11 @@ TEST(CFX_GifContext, ReadHeader) {
uint8_t lsd[sizeof(CFX_GifLocalScreenDescriptor)];
} data = {{'G', 'I', 'F', '8', '7', 'a'},
{0x0A, 0x00, 0x00, 0x0F, 0x80, 0x01, 0x02}};
- context.SetInputBuffer(reinterpret_cast<uint8_t*>(&data), sizeof(data));
+ context.SetInputBuffer({reinterpret_cast<uint8_t*>(&data), sizeof(data)});
EXPECT_EQ(CFX_GifDecodeStatus::Unfinished, context.ReadHeader());
-
EXPECT_EQ(sizeof(data.signature), context.InputBuffer()->GetPosition());
+ context.SetInputBuffer({});
}
// Success with global palette
{
@@ -282,10 +298,9 @@ TEST(CFX_GifContext, ReadHeader) {
} data = {{'G', 'I', 'F', '8', '7', 'a'},
{0x0A, 0x00, 0x00, 0x0F, 0xA9, 0x01, 0x02},
{0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 1}};
- context.SetInputBuffer(reinterpret_cast<uint8_t*>(&data), sizeof(data));
+ context.SetInputBuffer({reinterpret_cast<uint8_t*>(&data), sizeof(data)});
EXPECT_EQ(CFX_GifDecodeStatus::Success, context.ReadHeader());
-
EXPECT_EQ(sizeof(data), context.InputBuffer()->GetPosition());
EXPECT_EQ(0x000A, context.width_);
EXPECT_EQ(0x0F00, context.height_);
@@ -296,5 +311,6 @@ TEST(CFX_GifContext, ReadHeader) {
EXPECT_EQ(2, context.global_color_resolution_);
EXPECT_EQ(0, memcmp(data.palette, context.global_palette_.data(),
sizeof(data.palette)));
+ context.SetInputBuffer({});
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-19 02:50:39 +0000