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small binsize improvement for color scalers

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19380 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Andrew Mahone 2008-12-10 09:45:49 +00:00
parent 9356b13a23
commit eb04315b19
1 changed files with 20 additions and 20 deletions
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40
apps/recorder/resize.c
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@ -144,14 +144,14 @@ static bool scale_h_area(struct bitmap *bm, struct dim *src,
rgbval1.g += rgbval2.g * mul;
rgbval1.b += rgbval2.b * mul;
out_line[ox].r = (accum ? out_line[ox].r : 0) +
(((uint64_t)rgbval1.r + ctx->round) *
ctx->divmul >> 32);
((rgbval1.r + ctx->round) *
(uint64_t)ctx->divmul >> 32);
out_line[ox].g = (accum ? out_line[ox].g : 0) +
(((uint64_t)rgbval1.g + ctx->round) *
ctx->divmul >> 32);
((rgbval1.g + ctx->round) *
(uint64_t)ctx->divmul >> 32);
out_line[ox].b = (accum ? out_line[ox].b : 0) +
(((uint64_t)rgbval1.b + ctx->round) *
ctx->divmul >> 32);
((rgbval1.b + ctx->round) *
(uint64_t)ctx->divmul >> 32);
rgbval1.r = 0;
rgbval1.g = 0;
rgbval1.b = 0;
@ -208,9 +208,9 @@ static bool scale_v_area(struct bitmap *bm, bool dither, struct dim *src,
for (x = 0; x < 3 *(unsigned int)bm->width; x++)
{
((uint32_t*)crow1)[x] += mul * ((uint32_t*)crow2)[x];
((uint32_t*)crow1)[x] = (uint64_t)(round +
((uint32_t*)crow1)[x] = (round +
((uint32_t*)crow1)[x]) *
divmul >> 32;
(uint64_t)divmul >> 32;
}
pix = row;
for (x = 0; x < (unsigned int)bm->width; x++)
@ -289,14 +289,14 @@ static bool scale_h_linear(struct bitmap *bm, struct dim *src,
rgbinc.b *= src->width - 1;
}
out_line[ox].r = (accum ? out_line[ox].r : 0) +
(((uint64_t)rgbval.r + ctx->round) *
ctx->divmul >> 32);
((rgbval.r + ctx->round) *
(uint64_t)ctx->divmul >> 32);
out_line[ox].g = (accum ? out_line[ox].g : 0) +
(((uint64_t)rgbval.g + ctx->round) *
ctx->divmul >> 32);
((rgbval.g + ctx->round) *
(uint64_t)ctx->divmul >> 32);
out_line[ox].b = (accum ? out_line[ox].b : 0) +
(((uint64_t)rgbval.b + ctx->round) *
ctx->divmul >> 32);
((rgbval.b + ctx->round) *
(uint64_t)ctx->divmul >> 32);
rgbval.r += rgbinc.r;
rgbval.g += rgbinc.g;
rgbval.b += rgbinc.b;
@ -349,12 +349,12 @@ static bool scale_v_linear(struct bitmap *bm, bool dither, struct dim *src,
pix = row;
for (x = 0; x < (uint32_t)bm->width; x++)
{
p.r = (uint64_t)(crow1[x].r * (bm->height - 1 - iye) +
crow2[x].r * iye + round) * divmul >> 32;
p.g = (uint64_t)(crow1[x].g * (bm->height - 1 - iye) +
crow2[x].g * iye + round) * divmul >> 32;
p.b = (uint64_t)(crow1[x].b * (bm->height - 1 - iye) +
crow2[x].b * iye + round) * divmul >> 32;
p.r = (crow1[x].r * (bm->height - 1 - iye) +
crow2[x].r * iye + round) * (uint64_t)divmul >> 32;
p.g = (crow1[x].g * (bm->height - 1 - iye) +
crow2[x].g * iye + round) * (uint64_t)divmul >> 32;
p.b = (crow1[x].b * (bm->height - 1 - iye) +
crow2[x].b * iye + round) * (uint64_t)divmul >> 32;
if (dither)
delta = dither_mat(x & 0xf, oy & 0xf);
p.r = PACKRED(p.r,delta);