File glm-0.9.9.8-fix_tests_big-endian.patch of Package glm
From 06ce42e72324b32b1f4c37c646e99950c2bd5f6b Mon Sep 17 00:00:00 2001
From: Max Rees <maxcrees@me.com>
Date: Sun, 15 Mar 2020 15:13:27 -0400
Subject: [PATCH] Fix test suite on big endian platforms
---
glm/gtc/packing.inl | 55 ++++++++++++++++++++++++++++++++++++++++
test/gtc/gtc_packing.cpp | 3 ++-
2 files changed, 57 insertions(+), 1 deletion(-)
diff --git a/glm/gtc/packing.inl b/glm/gtc/packing.inl
index 8c906e16c..b1c99a507 100644
--- a/glm/gtc/packing.inl
+++ b/glm/gtc/packing.inl
@@ -9,6 +9,9 @@
#include "../detail/type_half.hpp"
#include <cstring>
#include <limits>
+extern "C" {
+#include <endian.h>
+}
namespace glm{
namespace detail
@@ -183,9 +186,15 @@ namespace detail
{
struct
{
+#if BYTE_ORDER == LITTLE_ENDIAN
uint x : 3;
uint y : 3;
uint z : 2;
+#else
+ uint z : 2;
+ uint y : 3;
+ uint x : 3;
+#endif
} data;
uint8 pack;
};
@@ -194,8 +203,13 @@ namespace detail
{
struct
{
+#if BYTE_ORDER == LITTLE_ENDIAN
uint x : 4;
uint y : 4;
+#else
+ uint y : 4;
+ uint x : 4;
+#endif
} data;
uint8 pack;
};
@@ -204,10 +218,17 @@ namespace detail
{
struct
{
+#if BYTE_ORDER == LITTLE_ENDIAN
uint x : 4;
uint y : 4;
uint z : 4;
uint w : 4;
+#else
+ uint w : 4;
+ uint z : 4;
+ uint y : 4;
+ uint x : 4;
+#endif
} data;
uint16 pack;
};
@@ -216,9 +237,15 @@ namespace detail
{
struct
{
+#if BYTE_ORDER == LITTLE_ENDIAN
uint x : 5;
uint y : 6;
uint z : 5;
+#else
+ uint z : 5;
+ uint y : 6;
+ uint x : 5;
+#endif
} data;
uint16 pack;
};
@@ -227,10 +254,17 @@ namespace detail
{
struct
{
+#if BYTE_ORDER == LITTLE_ENDIAN
uint x : 5;
uint y : 5;
uint z : 5;
uint w : 1;
+#else
+ uint w : 1;
+ uint z : 5;
+ uint y : 5;
+ uint x : 5;
+#endif
} data;
uint16 pack;
};
@@ -239,10 +273,17 @@ namespace detail
{
struct
{
+#if BYTE_ORDER == LITTLE_ENDIAN
uint x : 10;
uint y : 10;
uint z : 10;
uint w : 2;
+#else
+ uint w : 2;
+ uint z : 10;
+ uint y : 10;
+ uint x : 10;
+#endif
} data;
uint32 pack;
};
@@ -251,10 +292,17 @@ namespace detail
{
struct
{
+#if BYTE_ORDER == LITTLE_ENDIAN
int x : 10;
int y : 10;
int z : 10;
int w : 2;
+#else
+ int w : 2;
+ int z : 10;
+ int y : 10;
+ int x : 10;
+#endif
} data;
uint32 pack;
};
@@ -263,10 +311,17 @@ namespace detail
{
struct
{
+#if BYTE_ORDER == LITTLE_ENDIAN
uint x : 9;
uint y : 9;
uint z : 9;
uint w : 5;
+#else
+ uint w : 5;
+ uint z : 9;
+ uint y : 9;
+ uint x : 9;
+#endif
} data;
uint32 pack;
};
diff --git a/test/gtc/gtc_packing.cpp b/test/gtc/gtc_packing.cpp
index df5b3bb1a..fbaaa5bcc 100644
--- a/test/gtc/gtc_packing.cpp
+++ b/test/gtc/gtc_packing.cpp
@@ -4,6 +4,7 @@
#include <glm/ext/vector_relational.hpp>
#include <cstdio>
#include <vector>
+#include <arpa/inet.h>
void print_bits(float const& s)
{
@@ -156,7 +157,7 @@ int test_U3x10_1x2()
glm::u8vec4 const v0(0xff, 0x77, 0x0, 0x33);
glm::uint32 const p0 = *reinterpret_cast<glm::uint32 const*>(&v0[0]);
- glm::uint32 const r0 = 0x330077ff;
+ glm::uint32 const r0 = htonl(0xff770033);
Error += p0 == r0 ? 0 : 1;
