Some HDR files use alternative header signature

This commit is contained in:
Chuck Walbourn 2018-02-09 17:08:25 -08:00
parent ac7b79033d
commit 99fb44b402

View File

@ -42,6 +42,11 @@ using namespace DirectX;
namespace
{
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_Exposure[] = "EXPOSURE=";
@ -93,7 +98,8 @@ namespace
}
// 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;
}