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avoid int/float comparisons within a number of for loops in deep shadow map compression.

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gives minor overall speedup.
This commit is contained in:
Campbell Barton 2011-01-03 06:13:50 +00:00
parent 97e84765cd
commit 22b97743ef
2 changed files with 11 additions and 5 deletions
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2
source/blender/editors/render/render_preview.c
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@ -1030,7 +1030,7 @@ static void shader_preview_render(ShaderPreview *sp, ID *id, int split, int firs
/* handle results */
if(sp->pr_method==PR_ICON_RENDER) {
char *rct= (char *)(sp->pr_rect + 32*16 + 16);
// char *rct= (char *)(sp->pr_rect + 32*16 + 16);
if(sp->pr_rect)
RE_ResultGet32(re, sp->pr_rect);

14
source/blender/render/intern/source/shadbuf.c
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@ -300,8 +300,14 @@ static void compress_deepshadowbuf(Render *re, ShadBuf *shb, APixstr *apixbuf, A
DeepSample *ds[RE_MAX_OSA], *sampleds[RE_MAX_OSA], *dsb, *newbuf;
APixstr *ap, *apn;
APixstrand *aps, *apns;
float visibility, totbuf= shb->totbuf;
int a, b, c, tot, minz, found, size= shb->size, prevtot, newtot;
float visibility;
const int totbuf= shb->totbuf;
const float totbuf_f= (float)shb->totbuf;
const float totbuf_f_inv= 1.0f/totbuf_f;
const int size= shb->size;
int a, b, c, tot, minz, found, prevtot, newtot;
int sampletot[RE_MAX_OSA], totsample = 0, totsamplec = 0;
shsample= MEM_callocN( sizeof(ShadSampleBuf), "shad sample buf");
@ -456,9 +462,9 @@ static void compress_deepshadowbuf(Render *re, ShadBuf *shb, APixstr *apixbuf, A
}
if(sampleds[c] == ds[c])
visibility += 1.0f/totbuf;
visibility += totbuf_f_inv;
else
visibility += (ds[c]-1)->v/totbuf;
visibility += (ds[c]-1)->v / totbuf_f;
}
dsb->v= visibility;