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sw_engine: unnecessary memory allocation and variables has been removed

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Mira Grudzinska 2021-04-01 01:26:54 +02:00 • committed by Hermet Park
parent fdd14a51a7
commit 44f10698ed
1 changed files with 7 additions and 17 deletions
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24
src/lib/sw_engine/tvgSwRaster.cpp
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@ -155,8 +155,7 @@ static bool _translucentRectInvAlphaMask(SwSurface* surface, const SwBBox& regio
auto dst = &buffer[y * surface->stride];
auto cmp = &cbuffer[y * surface->stride];
for (uint32_t x = 0; x < w; ++x) {
auto ialpha = 255 - surface->blender.alpha(*cmp);
auto tmp = ALPHA_BLEND(color, ialpha);
auto tmp = ALPHA_BLEND(color, 255 - surface->blender.alpha(*cmp));
dst[x] = tmp + ALPHA_BLEND(dst[x], 255 - surface->blender.alpha(tmp));
++cmp;
}
@ -222,19 +221,16 @@ static bool _translucentRleAlphaMask(SwSurface* surface, const SwRleData* rle, u
#endif
auto span = rle->spans;
uint32_t src;
auto tbuffer = static_cast<uint32_t*>(alloca(sizeof(uint32_t) * surface->w)); //temp buffer for intermediate processing
auto cbuffer = surface->compositor->image.data;
for (uint32_t i = 0; i < rle->size; ++i) {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto cmp = &cbuffer[span->y * surface->stride + span->x];
auto tmp = tbuffer;
if (span->coverage < 255) src = ALPHA_BLEND(color, span->coverage);
else src = color;
for (uint32_t x = 0; x < span->len; ++x) {
*tmp = ALPHA_BLEND(src, surface->blender.alpha(*cmp));
dst[x] = *tmp + ALPHA_BLEND(dst[x], 255 - surface->blender.alpha(*tmp));
++tmp;
auto tmp = ALPHA_BLEND(src, surface->blender.alpha(*cmp));
dst[x] = tmp + ALPHA_BLEND(dst[x], 255 - surface->blender.alpha(tmp));
++cmp;
}
++span;
@ -249,20 +245,16 @@ static bool _translucentRleInvAlphaMask(SwSurface* surface, SwRleData* rle, uint
#endif
auto span = rle->spans;
uint32_t src;
auto tbuffer = static_cast<uint32_t*>(alloca(sizeof(uint32_t) * surface->w)); //temp buffer for intermediate processing
auto cbuffer = surface->compositor->image.data;
for (uint32_t i = 0; i < rle->size; ++i) {
auto dst = &surface->buffer[span->y * surface->stride + span->x];
auto cmp = &cbuffer[span->y * surface->stride + span->x];
auto tmp = tbuffer;
if (span->coverage < 255) src = ALPHA_BLEND(color, span->coverage);
else src = color;
for (uint32_t x = 0; x < span->len; ++x) {
auto ialpha = 255 - surface->blender.alpha(*cmp);
*tmp = ALPHA_BLEND(src, ialpha);
dst[x] = *tmp + ALPHA_BLEND(dst[x], 255 - surface->blender.alpha(*tmp));
++tmp;
auto tmp = ALPHA_BLEND(src, 255 - surface->blender.alpha(*cmp));
dst[x] = tmp + ALPHA_BLEND(dst[x], 255 - surface->blender.alpha(tmp));
++cmp;
}
++span;
@ -451,8 +443,7 @@ static bool _translucentImageInvAlphaMask(SwSurface* surface, const uint32_t *im
auto rX = static_cast<uint32_t>(roundf(x * invTransform->e11 + ey1));
auto rY = static_cast<uint32_t>(roundf(x * invTransform->e21 + ey2));
if (rX >= w || rY >= h) continue;
auto ialpha = 255 - surface->blender.alpha(*cmp);
auto tmp = ALPHA_BLEND(img[rX + (rY * w)], ALPHA_MULTIPLY(opacity, ialpha)); //TODO: need to use image's stride
auto tmp = ALPHA_BLEND(img[rX + (rY * w)], ALPHA_MULTIPLY(opacity, 255 - surface->blender.alpha(*cmp))); //TODO: need to use image's stride
*dst = tmp + ALPHA_BLEND(*dst, 255 - surface->blender.alpha(tmp));
}
dbuffer += surface->stride;
@ -541,8 +532,7 @@ static bool _translucentImageInvAlphaMask(SwSurface* surface, uint32_t *img, uin
auto cmp = cbuffer;
auto src = sbuffer;
for (uint32_t x = 0; x < w2; ++x, ++dst, ++src, ++cmp) {
auto ialpha = 255 - surface->blender.alpha(*cmp);
auto tmp = ALPHA_BLEND(*src, ALPHA_MULTIPLY(opacity, ialpha));
auto tmp = ALPHA_BLEND(*src, ALPHA_MULTIPLY(opacity, 255 - surface->blender.alpha(*cmp)));
*dst = tmp + ALPHA_BLEND(*dst, 255 - surface->blender.alpha(tmp));
}
buffer += surface->stride;