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Apply transformations to nonpow2_mhline and nonpow2_thline.

Browse source 
This has no measureable difference. Oh well, maybe it benefits weaker
machines, since the generated loop code should definitely be prettier.

git-svn-id: https://svn.eduke32.com/eduke32@2408 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
helixhorned 2012-03-04 20:13:16 +00:00
parent bb5f118985
commit 6065fbd38c
1 changed files with 32 additions and 24 deletions
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56
polymer/eduke32/build/src/engine.c
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@ -3925,37 +3925,45 @@ static inline void transmaskwallscan(int32_t x1, int32_t x2)
# define ourdivscale32(d,b) divscale32(d,b) # define ourdivscale32(d,b) divscale32(d,b)
#endif #endif
static void nonpow2_mhline(intptr_t bufplc, uint32_t bx, int32_t cntup16, int32_t junk, uint32_t by, intptr_t p) // cntup16>>16 iterations
static void nonpow2_mhline(intptr_t bufplc, uint32_t bx, int32_t cntup16, int32_t junk, uint32_t by, char *p)
{ {
char ch; char ch;
const char *const gbuf = (char *)bufplc; const char *const buf = (char *)bufplc;
const char *const gpal = (char *)asm3; const char *const pal = (char *)asm3;
const uint32_t xdiv = globalxspan > 1 ? ourdivscale32(1, globalxspan) : UINT32_MAX; const uint32_t xdiv = globalxspan > 1 ? (uint32_t)ourdivscale32(1, globalxspan) : UINT32_MAX;
const uint32_t ydiv = globalyspan > 1 ? ourdivscale32(1, globalyspan) : UINT32_MAX; const uint32_t ydiv = globalyspan > 1 ? (uint32_t)ourdivscale32(1, globalyspan) : UINT32_MAX;
const uint32_t yspan = globalyspan;
const int32_t xinc = asm1, yinc = asm2;
UNREFERENCED_PARAMETER(junk); UNREFERENCED_PARAMETER(junk);
for (cntup16>>=16; cntup16>0; cntup16--) for (cntup16>>=16; cntup16>0; cntup16--)
{ {
ch = gbuf[(bx/xdiv)*globalyspan + by/ydiv]; ch = buf[(bx/xdiv)*yspan + by/ydiv];
if (ch != 255) *((char *)p) = gpal[ch];
bx += asm1; if (ch != 255) *p = pal[ch];
by += asm2; bx += xinc;
by += yinc;
p++; p++;
} }
} }
static void nonpow2_thline(intptr_t bufplc, uint32_t bx, int32_t cntup16, int32_t junk, uint32_t by, intptr_t p) // cntup16>>16 iterations
static void nonpow2_thline(intptr_t bufplc, uint32_t bx, int32_t cntup16, int32_t junk, uint32_t by, char *p)
{ {
char ch; char ch;
const char *const gbuf = (char *)bufplc; const char *const buf = (char *)bufplc;
const char *const gpal = (char *)asm3; const char *const pal = (char *)asm3;
const char *const trans = transluc;
const uint32_t xdiv = globalxspan > 1 ? ourdivscale32(1, globalxspan) : UINT32_MAX; const uint32_t xdiv = globalxspan > 1 ? (uint32_t)ourdivscale32(1, globalxspan) : UINT32_MAX;
const uint32_t ydiv = globalyspan > 1 ? ourdivscale32(1, globalyspan) : UINT32_MAX; const uint32_t ydiv = globalyspan > 1 ? (uint32_t)ourdivscale32(1, globalyspan) : UINT32_MAX;
const uint32_t yspan = globalyspan;
const int32_t xinc = asm1, yinc = asm2;
UNREFERENCED_PARAMETER(junk); UNREFERENCED_PARAMETER(junk);
@ -3963,10 +3971,10 @@ static void nonpow2_thline(intptr_t bufplc, uint32_t bx, int32_t cntup16, int32_
{ {
for (cntup16>>=16; cntup16>0; cntup16--) for (cntup16>>=16; cntup16>0; cntup16--)
{ {
ch = gbuf[(bx/xdiv)*globalyspan + by/ydiv]; ch = buf[(bx/xdiv)*yspan + by/ydiv];
if (ch != 255) *((char *)p) = transluc[(*((char *)p))+(gpal[ch]<<8)]; if (ch != 255) *p = trans[(*p)|(pal[ch]<<8)];
bx += asm1; bx += xinc;
by += asm2; by += yinc;
p++; p++;
} }
} }
@ -3974,10 +3982,10 @@ static void nonpow2_thline(intptr_t bufplc, uint32_t bx, int32_t cntup16, int32_
{ {
for (cntup16>>=16; cntup16>0; cntup16--) for (cntup16>>=16; cntup16>0; cntup16--)
{ {
ch = gbuf[(bx/xdiv)*globalyspan + by/ydiv]; ch = buf[(bx/xdiv)*yspan + by/ydiv];
if (ch != 255) *((char *)p) = transluc[((*((char *)p))<<8)+gpal[ch]]; if (ch != 255) *p = trans[((*p)<<8)|pal[ch]];
bx += asm1; bx += xinc;
by += asm2; by += yinc;
p++; p++;
} }
} }
@ -4017,10 +4025,10 @@ static inline void ceilspritehline(int32_t x2, int32_t y)
else else
{ {
if ((globalorientation&2) == 0) if ((globalorientation&2) == 0)
nonpow2_mhline(globalbufplc,bx,(x2-x1)<<16,0L,by,ylookup[y]+x1+frameoffset); nonpow2_mhline(globalbufplc,bx,(x2-x1)<<16,0L,by,(char *)(ylookup[y]+x1+frameoffset));
else else
{ {
nonpow2_thline(globalbufplc,bx,(x2-x1)<<16,0L,by,ylookup[y]+x1+frameoffset); nonpow2_thline(globalbufplc,bx,(x2-x1)<<16,0L,by,(char *)(ylookup[y]+x1+frameoffset));
} }
} }
} }