NekoCWD/libcamera
NekoCWD/libcamera
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WIP: AUTOFOCUS

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Signed-off-by: Vasiliy Doylov <nekocwd@mainlining.org>
This commit is contained in:
Vasiliy Doylov 2025-07-09 00:20:03 +03:00
parent 51d6ca752d
commit 8eae1f8dda
Signed by: NekoCWD
GPG key ID: B7BE22D44474A582
2 changed files with 16 additions and 2 deletions
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4
include/libcamera/internal/software_isp/swisp_stats.h
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@ -44,6 +44,10 @@ struct SwIspStats {
* \brief A histogram of luminance values * \brief A histogram of luminance values
*/ */
Histogram yHistogram; Histogram yHistogram;
/**
* \brief Holds the sharpness of an image
*/
uint64_t sharpness;
}; };
} /* namespace libcamera */ } /* namespace libcamera */

14
src/libcamera/software_isp/swstats_cpu.cpp
View file

@ -147,7 +147,8 @@ static constexpr unsigned int kBlueYMul = 29; /* 0.114 * 256 */
\ \
uint64_t sumR = 0; \ uint64_t sumR = 0; \
uint64_t sumG = 0; \ uint64_t sumG = 0; \
uint64_t sumB = 0; uint64_t sumB = 0; \
uint64_t sharpness = 0;
#define SWSTATS_ACCUMULATE_LINE_STATS(div) \ #define SWSTATS_ACCUMULATE_LINE_STATS(div) \
sumR += r; \ sumR += r; \
@ -162,7 +163,8 @@ static constexpr unsigned int kBlueYMul = 29; /* 0.114 * 256 */
#define SWSTATS_FINISH_LINE_STATS() \ #define SWSTATS_FINISH_LINE_STATS() \
stats_.sumR_ += sumR; \ stats_.sumR_ += sumR; \
stats_.sumG_ += sumG; \ stats_.sumG_ += sumG; \
stats_.sumB_ += sumB; stats_.sumB_ += sumB; \
stats_.sharpness += sharpness;
void SwStatsCpu::statsBGGR8Line0(const uint8_t *src[]) void SwStatsCpu::statsBGGR8Line0(const uint8_t *src[])
{ {
@ -174,6 +176,13 @@ void SwStatsCpu::statsBGGR8Line0(const uint8_t *src[])
if (swapLines_) if (swapLines_)
std::swap(src0, src1); std::swap(src0, src1);
for(int x = 0; x < (int)window_.width; x+=2){
int sum = 0;
sum += src0[x-2];
sum += src0[x+2];
sum -= 2*src0[x];
sharpness += sum*sum;
}
/* x += 4 sample every other 2x2 block */ /* x += 4 sample every other 2x2 block */
for (int x = 0; x < (int)window_.width; x += 4) { for (int x = 0; x < (int)window_.width; x += 4) {
b = src0[x]; b = src0[x];
@ -320,6 +329,7 @@ void SwStatsCpu::finishFrame(uint32_t frame, uint32_t bufferId)
{ {
*sharedStats_ = stats_; *sharedStats_ = stats_;
statsReady.emit(frame, bufferId); statsReady.emit(frame, bufferId);
LOG(SwStatsCpu, Error) << "Sharpness" << stats_.sharpness;
} }
/** /**