effects: Fix PowerPC support (#76)

icculus · Nov 9, 2024 · 7e569cc · 7e569cc
1 parent 04926f5
commit 7e569cc
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Showing 2 changed files with 8 additions and 3 deletions.
diff --git a/mojoshader_effects.c b/mojoshader_effects.c
@@ -398,7 +398,12 @@ static void readvalue(const uint8 *base,
             const uint32 siz = 4 * numobjects;
             value->values = m(siz, d);
             memcpy(value->values, valptr, siz);
-
+            #if MOJOSHADER_BIG_ENDIAN
+            int valI;
+            for (valI=0;valI < (value->value_count);valI++) {
+                value->valuesI[valI] = SWAP32(value->valuesI[valI]);
+            }
+            #endif
             for (i = 0; i < value->value_count; i++)
                 objects[value->valuesI[i]].type = (MOJOSHADER_symbolType) type;
         } // else

diff --git a/mojoshader_internal.h b/mojoshader_internal.h
@@ -137,7 +137,7 @@ typedef Uint64 uint64;
 #include <endian.h>
 #define MOJOSHADER_BIG_ENDIAN (__BYTE_ORDER == __BIG_ENDIAN)
 #else
-#define MOJOSHADER_BIG_ENDIAN (defined(__POWERPC__))
+#define MOJOSHADER_BIG_ENDIAN (defined(__POWERPC__) || defined(__powerpc__))
 #endif
 #endif /* MOJOSHADER_USE_SDL_STDLIB */
 
@@ -308,7 +308,7 @@ typedef uint64_t uint64;
 
 // Byteswap magic...
 
-#if ((defined __GNUC__) && (defined __POWERPC__))
+#if ((defined __GNUC__) && ((defined __POWERPC__) || defined __powerpc__))
     static inline uint32 SWAP32(uint32 x)
     {
         __asm__ __volatile__("lwbrx %0,0,%1" : "=r" (x) : "r" (&x));