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Made PCX Loader exception-safe 

Former-commit-id: aca42c27d8daa6b0c5412bd61c5fad3016bcd6d0
This commit is contained in:
Lynix 2013-05-03 02:56:04 +02:00
parent 780bcf122c
commit 76c19624d8
1 changed files with 5 additions and 13 deletions
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18
src/Nazara/Utility/Loaders/PCX/Loader.cpp
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@ -9,6 +9,7 @@
#include <Nazara/Core/InputStream.hpp> #include <Nazara/Core/InputStream.hpp>
#include <Nazara/Core/MemoryStream.hpp> #include <Nazara/Core/MemoryStream.hpp>
#include <Nazara/Utility/Image.hpp> #include <Nazara/Utility/Image.hpp>
#include <memory>
#include <Nazara/Utility/Debug.hpp> #include <Nazara/Utility/Debug.hpp>
// Auteur du loader original : David Henry // Auteur du loader original : David Henry
@ -149,18 +150,18 @@ namespace
case 4: case 4:
{ {
nzUInt8* colorIndex = new nzUInt8[width]; std::unique_ptr<nzUInt8[]> colorIndex(new nzUInt8[width]);
nzUInt8* line = new nzUInt8[header.bytesPerScanLine]; std::unique_ptr<nzUInt8[]> line(new nzUInt8[header.bytesPerScanLine]);
for (unsigned int y = 0; y < height; ++y) for (unsigned int y = 0; y < height; ++y)
{ {
nzUInt8* ptr = &pixels[y * width * 3]; nzUInt8* ptr = &pixels[y * width * 3];
std::memset(colorIndex, 0, width); std::memset(colorIndex.get(), 0, width);
for (unsigned int c = 0; c < 4; ++c) for (unsigned int c = 0; c < 4; ++c)
{ {
nzUInt8* pLine = line; nzUInt8* pLine = line.get();
int bytes = header.bytesPerScanLine; int bytes = header.bytesPerScanLine;
/* decode line number y */ /* decode line number y */
@ -171,9 +172,6 @@ namespace
if (!stream.Read(&rle_value, 1)) if (!stream.Read(&rle_value, 1))
{ {
NazaraError("Failed to read stream (byte " + NzString::Number(stream.GetCursorPos()) + ')'); NazaraError("Failed to read stream (byte " + NzString::Number(stream.GetCursorPos()) + ')');
delete[] colorIndex;
delete[] line;
return false; return false;
} }
@ -185,9 +183,6 @@ namespace
if (!stream.Read(&rle_value, 1)) if (!stream.Read(&rle_value, 1))
{ {
NazaraError("Failed to read stream (byte " + NzString::Number(stream.GetCursorPos()) + ')'); NazaraError("Failed to read stream (byte " + NzString::Number(stream.GetCursorPos()) + ')');
delete[] colorIndex;
delete[] line;
return false; return false;
} }
} }
@ -214,9 +209,6 @@ namespace
} }
} }
/* release memory */
delete[] colorIndex;
delete[] line;
break; break;
} }