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Switch back to normal swapping

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This commit is contained in:
Luke Benstead 2019-03-25 12:38:34 +00:00
parent 0e71588e6c
commit 8fd90bd040
1 changed files with 17 additions and 10 deletions
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27
GL/draw.c
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@ -538,22 +538,29 @@ static inline void transformNormalToEyeSpace(GLfloat* normal) {
/* FIXME: SH4 has a swap.w instruction, we should leverage it here! */
#define _XOR_SWAP32(x, y) \
#define _SWAP32(x, y) \
do { \
uint32_t t = *((uint32_t*) &x); \
*((uint32_t*) &x) = *((uint32_t*) &y); \
*((uint32_t*) &y) = t; \
} while(0)
/*
*((uint32_t*) &x) = *((uint32_t*) &x) ^ *((uint32_t*) &y); \
*((uint32_t*) &y) = *((uint32_t*) &x) ^ *((uint32_t*) &y); \
*((uint32_t*) &x) = *((uint32_t*) &x) ^ *((uint32_t*) &y);
*((uint32_t*) &x) = *((uint32_t*) &x) ^ *((uint32_t*) &y); */
#define swapVertex(a, b) \
do { \
_XOR_SWAP32(a->flags, b->flags); \
_XOR_SWAP32(a->xyz[0], b->xyz[0]); \
_XOR_SWAP32(a->xyz[1], b->xyz[1]); \
_XOR_SWAP32(a->xyz[2], b->xyz[2]); \
_XOR_SWAP32(a->uv[0], b->uv[0]); \
_XOR_SWAP32(a->uv[1], b->uv[1]); \
_XOR_SWAP32(a->bgra, b->bgra); \
_XOR_SWAP32(a->w, b->w); \
_SWAP32(a->flags, b->flags); \
_SWAP32(a->xyz[0], b->xyz[0]); \
_SWAP32(a->xyz[1], b->xyz[1]); \
_SWAP32(a->xyz[2], b->xyz[2]); \
_SWAP32(a->uv[0], b->uv[0]); \
_SWAP32(a->uv[1], b->uv[1]); \
_SWAP32(a->bgra, b->bgra); \
_SWAP32(a->w, b->w); \
} while(0)