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Diffstat (limited to 'kms++util/src/conv-gray.h')
| -rw-r--r-- | kms++util/src/conv-gray.h | 130 |
1 files changed, 0 insertions, 130 deletions
diff --git a/kms++util/src/conv-gray.h b/kms++util/src/conv-gray.h deleted file mode 100644 index 7fead46..0000000 --- a/kms++util/src/conv-gray.h +++ /dev/null @@ -1,130 +0,0 @@ -#pragma once - -#include <vector> - -#include <kms++/framebuffer.h> -#include <kms++util/color16.h> - -#include "conv-common.h" - -namespace kms -{ - -/* - * Grayscale formats - */ - -using Y8_Layout = FormatLayout<PlaneLayout<uint8_t, - ComponentLayout<ComponentType::Y, 8, 0>>>; - -using Y10_Layout = FormatLayout<PlaneLayout<uint16_t, - ComponentLayout<ComponentType::Y, 10, 0>, - ComponentLayout<ComponentType::X, 4, 10>>>; - -using Y12_Layout = FormatLayout<PlaneLayout<uint16_t, - ComponentLayout<ComponentType::Y, 12, 0>, - ComponentLayout<ComponentType::X, 4, 12>>>; - -using Y16_Layout = FormatLayout<PlaneLayout<uint16_t, - ComponentLayout<ComponentType::Y, 16, 0>>>; - -using XYYY2101010_Layout = FormatLayout<PlaneLayout<uint32_t, - ComponentLayout<ComponentType::Y, 10, 0>, // Y0 - ComponentLayout<ComponentType::Y, 10, 10>, // Y1 - ComponentLayout<ComponentType::Y, 10, 20>, // Y2 - ComponentLayout<ComponentType::X, 2, 30> ->>; - -template<typename Layout> class Y_Writer -{ - using Plane = typename Layout::template plane<0>; - using TStorage = typename Plane::storage_type; - - static_assert(Layout::num_planes == 1); - static_assert(Plane::template component_count<ComponentType::Y>() >= 1); - - static constexpr bool has_padding = - Plane::template component_count<ComponentType::X>(); - - static constexpr size_t y_idx = Plane::template find_pos<ComponentType::Y>(); - static constexpr size_t x_idx = - has_padding ? Plane::template find_pos<ComponentType::X>() : 0; - - static constexpr size_t y_shift = 16 - Plane::template component_size<y_idx>; - - static constexpr size_t pixels_in_group = - Plane::template component_count<ComponentType::Y>(); - static constexpr bool is_packed_format = pixels_in_group > 1; - -public: - // Pack and write num_pixels pixels from src_line to dst_line - static void pack_line(HasIndexOperatorReturning<TStorage> auto&& dst_line, - HasIndexOperatorReturning<YUV16> auto&& src_line, - size_t num_pixels) - { - if constexpr (!is_packed_format) { - // Simple case: one Y component per storage unit - for (size_t x = 0; x < num_pixels; x++) { - const YUV16& pix = src_line[x]; - - std::array<component_storage_type, Plane::num_components> - components; - - if constexpr (has_padding) - components[x_idx] = 0; - - components[y_idx] = pix.y >> y_shift; - - dst_line[x] = Plane::pack(components); - } - } else { - write_y_samples(dst_line, src_line, num_pixels); - } - } - - static void write_pattern(IFramebuffer& fb, size_t start_y, size_t end_y, - auto&& generate_line) - { - std::vector<YUV16> linebuf(fb.width()); - - // View to the plane - auto view = make_strided_fb_view<TStorage>(fb.map(0), fb.height(), - fb.width() / pixels_in_group, - fb.stride(0)); - - for (size_t y_src = start_y; y_src <= end_y; y_src++) { - generate_line(y_src, linebuf); - - auto dst = md::submdspan(view, y_src, md::full_extent); - - pack_line(dst, linebuf, fb.width()); - } - } - -private: - template<typename YBuf> - static void write_y_samples(YBuf&& y_view, auto&& linebuf, size_t num_pixels) - { - for (size_t x_src = 0; x_src < num_pixels; x_src += pixels_in_group) { - auto x_dst = x_src / pixels_in_group; - - write_y_group(y_view, linebuf, x_src, x_dst, - std::make_index_sequence<pixels_in_group>{}); - } - } - - template<typename YBuf, size_t... I> - static void write_y_group(YBuf&& y_view, auto&& linebuf, size_t x_src, - size_t x_dst, std::index_sequence<I...>) - { - std::array<component_storage_type, Plane::num_components> y_values{ - static_cast<component_storage_type>( - (linebuf[x_src + I].y >> - (16 - Plane::template component_size<I>)))... - }; - - y_view[x_dst] = Plane::pack(y_values); - } -}; - -} // namespace kms
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