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dual demosaic auto contrast: fix segfault when falling back to zero, #4866

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heckflosse
2018-10-22 17:24:36 +02:00
parent e2965cc6b4
commit be987d8f32
1 changed files with 60 additions and 52 deletions
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112
rtengine/rt_algo.cc
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@@ -286,64 +286,72 @@ void buildBlendMask(float** luminance, float **blend, int W, int H, float &contr
}
}
#ifdef _OPENMP
#pragma omp parallel
#endif
{
#ifdef __SSE2__
const vfloat contrastThresholdv = F2V(contrastThreshold);
const vfloat scalev = F2V(scale);
const vfloat amountv = F2V(amount);
#endif
#ifdef _OPENMP
#pragma omp for schedule(dynamic,16)
#endif
for(int j = 2; j < H - 2; ++j) {
int i = 2;
#ifdef __SSE2__
for(; i < W - 5; i += 4) {
vfloat contrastv = vsqrtf(SQRV(LVFU(luminance[j][i+1]) - LVFU(luminance[j][i-1])) + SQRV(LVFU(luminance[j+1][i]) - LVFU(luminance[j-1][i])) +
SQRV(LVFU(luminance[j][i+2]) - LVFU(luminance[j][i-2])) + SQRV(LVFU(luminance[j+2][i]) - LVFU(luminance[j-2][i]))) * scalev;
STVFU(blend[j][i], amountv * calcBlendFactor(contrastv, contrastThresholdv));
}
#endif
for(; i < W - 2; ++i) {
float contrast = sqrtf(rtengine::SQR(luminance[j][i+1] - luminance[j][i-1]) + rtengine::SQR(luminance[j+1][i] - luminance[j-1][i]) +
rtengine::SQR(luminance[j][i+2] - luminance[j][i-2]) + rtengine::SQR(luminance[j+2][i] - luminance[j-2][i])) * scale;
blend[j][i] = amount * calcBlendFactor(contrast, contrastThreshold);
if(contrastThreshold == 0.f) {
for(int j = 0; j < H; ++j) {
for(int i = 0; i < W; ++i) {
blend[j][i] = amount;
}
}
} else {
#ifdef _OPENMP
#pragma omp single
#pragma omp parallel
#endif
{
// upper border
for(int j = 0; j < 2; ++j) {
for(int i = 2; i < W - 2; ++i) {
blend[j][i] = blend[2][i];
}
}
// lower border
for(int j = H - 2; j < H; ++j) {
for(int i = 2; i < W - 2; ++i) {
blend[j][i] = blend[H-3][i];
}
}
for(int j = 0; j < H; ++j) {
// left border
blend[j][0] = blend[j][1] = blend[j][2];
// right border
blend[j][W - 2] = blend[j][W - 1] = blend[j][W - 3];
}
}
#ifdef __SSE2__
const vfloat contrastThresholdv = F2V(contrastThreshold);
const vfloat scalev = F2V(scale);
const vfloat amountv = F2V(amount);
#endif
#ifdef _OPENMP
#pragma omp for schedule(dynamic,16)
#endif
// blur blend mask to smooth transitions
gaussianBlur(blend, blend, W, H, 2.0);
for(int j = 2; j < H - 2; ++j) {
int i = 2;
#ifdef __SSE2__
for(; i < W - 5; i += 4) {
vfloat contrastv = vsqrtf(SQRV(LVFU(luminance[j][i+1]) - LVFU(luminance[j][i-1])) + SQRV(LVFU(luminance[j+1][i]) - LVFU(luminance[j-1][i])) +
SQRV(LVFU(luminance[j][i+2]) - LVFU(luminance[j][i-2])) + SQRV(LVFU(luminance[j+2][i]) - LVFU(luminance[j-2][i]))) * scalev;
STVFU(blend[j][i], amountv * calcBlendFactor(contrastv, contrastThresholdv));
}
#endif
for(; i < W - 2; ++i) {
float contrast = sqrtf(rtengine::SQR(luminance[j][i+1] - luminance[j][i-1]) + rtengine::SQR(luminance[j+1][i] - luminance[j-1][i]) +
rtengine::SQR(luminance[j][i+2] - luminance[j][i-2]) + rtengine::SQR(luminance[j+2][i] - luminance[j-2][i])) * scale;
blend[j][i] = amount * calcBlendFactor(contrast, contrastThreshold);
}
}
#ifdef _OPENMP
#pragma omp single
#endif
{
// upper border
for(int j = 0; j < 2; ++j) {
for(int i = 2; i < W - 2; ++i) {
blend[j][i] = blend[2][i];
}
}
// lower border
for(int j = H - 2; j < H; ++j) {
for(int i = 2; i < W - 2; ++i) {
blend[j][i] = blend[H-3][i];
}
}
for(int j = 0; j < H; ++j) {
// left border
blend[j][0] = blend[j][1] = blend[j][2];
// right border
blend[j][W - 2] = blend[j][W - 1] = blend[j][W - 3];
}
}
// blur blend mask to smooth transitions
gaussianBlur(blend, blend, W, H, 2.0);
}
}
}
}