Merge "Fix using representable texture channel ranges." am: b845c09634
am: cfbb21d06c
Change-Id: I5542fbffe67b328f24b32aa8f9c990395bb51b03
diff --git a/framework/common/tcuTextureUtil.cpp b/framework/common/tcuTextureUtil.cpp
index 48e49e2..215442b 100644
--- a/framework/common/tcuTextureUtil.cpp
+++ b/framework/common/tcuTextureUtil.cpp
@@ -381,11 +381,11 @@
// Misc formats.
case TextureFormat::SIGNED_INT8: cMin = -128.0f; cMax = 127.0f; break;
case TextureFormat::SIGNED_INT16: cMin = -32768.0f; cMax = 32767.0f; break;
- case TextureFormat::SIGNED_INT32: cMin = -2147483648.0f; cMax = 2147483647.0f; break;
+ case TextureFormat::SIGNED_INT32: cMin = -2147483520.0f; cMax = 2147483520.0f; break; // Maximum exactly representable 31-bit integer: (2^24 - 1) * 2^7
case TextureFormat::UNSIGNED_INT8: cMin = 0.0f; cMax = 255.0f; break;
case TextureFormat::UNSIGNED_INT16: cMin = 0.0f; cMax = 65535.0f; break;
case TextureFormat::UNSIGNED_INT24: cMin = 0.0f; cMax = 16777215.0f; break;
- case TextureFormat::UNSIGNED_INT32: cMin = 0.0f; cMax = 4294967295.f; break;
+ case TextureFormat::UNSIGNED_INT32: cMin = 0.0f; cMax = 4294967040.f; break; // Maximum exactly representable 32-bit integer: (2^24 - 1) * 2^8
case TextureFormat::HALF_FLOAT: cMin = -1e3f; cMax = 1e3f; break;
case TextureFormat::FLOAT: cMin = -1e5f; cMax = 1e5f; break;
case TextureFormat::FLOAT64: cMin = -1e5f; cMax = 1e5f; break;