76 lines
2 KiB
C++
76 lines
2 KiB
C++
#if !defined(PIXEL_OP_HPP__)
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#define PIXEL_OP_HPP__
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#include <functional>
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template <typename T, int component>
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void hv_op(T *__restrict ptr, const T *__restrict src, int w, int h, int dst_stride, int src_stride, std::function<T(T &&, T &&, T &&)> &&f)
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{
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for (int i = 0; i < h; i++) {
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for (int j = 0; j < w; j++) {
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T c0 = src[j * component];
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T c1 = src[j * component + 1];
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T c2 = src[j * component + 2];
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ptr[j] = f(std::move(c0), std::move(c1), std::move(c2));
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}
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src += src_stride;
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ptr += dst_stride;
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}
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}
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template <typename T, int component>
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void hv_op(const T *__restrict src, int w, int h, int stride, std::function<void(T &&, T &&, T &&, int, int)> &&f)
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{
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for (int i = 0; i < h; i++) {
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for (int j = 0; j < w; j++) {
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T c0 = src[j * component];
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T c1 = src[j * component + 1];
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T c2 = src[j * component + 2];
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f(std::move(c0), std::move(c1), std::move(c2), j, i);
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}
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src += stride;
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}
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}
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template <typename T>
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void hv_op(T *__restrict ptr, const T *__restrict src, int w, int h, int stride, std::function<T(T &&, int x, int y)> &&f)
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{
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for (int i = 0; i < h; i++) {
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for (int j = 0; j < w; j++) {
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T c0 = src[j];
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ptr[j] = f(std::move(c0), j, i);
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}
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src += stride;
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ptr += stride;
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}
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}
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template <typename T>
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void hv_kernel(T *__restrict ptr, const T *__restrict src, int w, int h, int stride, std::function<T(const T *, int, int, int)> &&f)
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{
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for (int i = 0; i < h; i++) {
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for (int j = 0; j < w; j++) {
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ptr[j] = f(src + j, stride, j, i);
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}
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src += stride;
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ptr += stride;
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}
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}
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template <typename T, int components>
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void hv_kernel(T *__restrict ptr, const T *__restrict src, int w, int h, int dstride, int sstride, std::function<void(T[components], const T *, int, int, int)> &&f)
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{
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for (int i = 0; i < h * components; i += components) {
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for (int j = 0; j < w * components; j += components) {
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T channels[components];
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f(channels, src + j, sstride, j, i);
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for (int k = 0; k < components; k++)
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ptr[j + k] = channels[k];
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}
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src += sstride;
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ptr += dstride;
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}
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}
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#endif
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