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CTexture bounds validation

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This commit is contained in:
Jack Andersen
2016-09-02 19:19:22 -10:00
parent ce3014b313
commit 2dbb06f8b1
3 changed files with 15 additions and 8 deletions
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17
Runtime/Graphics/CTextureBoo.cpp
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@@ -648,21 +648,28 @@ void CTexture::BuildDXT1FromGCN(CInputStream& in)
});
}
void CTexture::BuildRGBA8(const void* data)
void CTexture::BuildRGBA8(const void* data, size_t length)
{
size_t texelCount = ComputeMippedTexelCount();
size_t expectedSize = texelCount * 4;
if (expectedSize > length)
Log.report(logvisor::Fatal, "insufficient TXTR length (%" PRISize "/%" PRISize ")",
length, expectedSize);
m_booToken = CGraphics::CommitResources([&](boo::IGraphicsDataFactory::Context& ctx) -> bool
{
m_booTex = ctx.newStaticTexture(x4_w, x6_h, x8_mips, boo::TextureFormat::RGBA8,
data, texelCount * 4);
data, expectedSize);
return true;
});
}
void CTexture::BuildC8(const void* data)
void CTexture::BuildC8(const void* data, size_t length)
{
size_t texelCount = ComputeMippedTexelCount();
if (texelCount > length)
Log.report(logvisor::Fatal, "insufficient TXTR length (%" PRISize "/%" PRISize ")",
length, texelCount);
m_booToken = CGraphics::CommitResources([&](boo::IGraphicsDataFactory::Context& ctx) -> bool
{
@@ -722,10 +729,10 @@ CTexture::CTexture(std::unique_ptr<u8[]>&& in, u32 length)
BuildDXT1FromGCN(r);
break;
case ETexelFormat::RGBA8PC:
BuildRGBA8(owned.get() + 12);
BuildRGBA8(owned.get() + 12, length - 12);
break;
case ETexelFormat::C8PC:
BuildC8(owned.get() + 12);
BuildC8(owned.get() + 12, length - 12);
break;
default:
Log.report(logvisor::Fatal, "invalid texture type %d for boo", int(x0_fmt));