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Some HDR files use alternative header signature

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This commit is contained in:
Chuck Walbourn 2018-02-09 17:08:25 -08:00
parent ac7b79033d
commit 99fb44b402
1 changed files with 7 additions and 1 deletions
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8
DirectXTex/DirectXTexHDR.cpp
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@ -42,6 +42,11 @@ using namespace DirectX;
namespace namespace
{ {
const char g_Signature[] = "#?RADIANCE"; const char g_Signature[] = "#?RADIANCE";
// This is the official header signature for the .HDR (RGBE) file format.
const char g_AltSignature[] = "#?RGBE";
// This is a common variant header signature that is otherwise exactly the same format.
const char g_Format[] = "FORMAT="; const char g_Format[] = "FORMAT=";
const char g_Exposure[] = "EXPOSURE="; const char g_Exposure[] = "EXPOSURE=";
@ -93,7 +98,8 @@ namespace
} }
// Verify magic signature // Verify magic signature
if (memcmp(pSource, g_Signature, sizeof(g_Signature) - 1) != 0) if (memcmp(pSource, g_Signature, sizeof(g_Signature) - 1) != 0
&& memcmp(pSource, g_AltSignature, sizeof(g_AltSignature) - 1) != 0)
{ {
return E_FAIL; return E_FAIL;
} }