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#pragma once
#include <vector>
#include <kms++/framebuffer.h>
#include <kms++util/color16.h>
#include "conv-common.h"
namespace kms
{
/*
* RGB
*/
template<ComponentType C3, size_t size3, size_t offset3,
ComponentType C2, size_t size2, size_t offset2,
ComponentType C1, size_t size1, size_t offset1,
ComponentType C0, size_t size0, size_t offset0>
struct RGB_16_Layout
: public FormatLayout<PlaneLayout<uint16_t,
ComponentLayout<C0, size0, offset0>,
ComponentLayout<C1, size1, offset1>,
ComponentLayout<C2, size2, offset2>,
ComponentLayout<C3, size3, offset3>>>
{
};
using XRGB4444_Layout = RGB_16_Layout<
ComponentType::X, 4, 12,
ComponentType::R, 4, 8,
ComponentType::G, 4, 4,
ComponentType::B, 4, 0
>;
using ARGB4444_Layout = RGB_16_Layout<
ComponentType::A, 4, 12,
ComponentType::R, 4, 8,
ComponentType::G, 4, 4,
ComponentType::B, 4, 0
>;
using XRGB1555_Layout = RGB_16_Layout<
ComponentType::X, 1, 15,
ComponentType::R, 5, 10,
ComponentType::G, 5, 5,
ComponentType::B, 5, 0
>;
using ARGB1555_Layout = RGB_16_Layout<
ComponentType::A, 1, 15,
ComponentType::R, 5, 10,
ComponentType::G, 5, 5,
ComponentType::B, 5, 0
>;
using RGB565_Layout = FormatLayout<PlaneLayout<uint16_t,
ComponentLayout<ComponentType::R, 5, 11>,
ComponentLayout<ComponentType::G, 6, 5>,
ComponentLayout<ComponentType::B, 5, 0>>
>;
using BGR565_Layout = FormatLayout<PlaneLayout<uint16_t,
ComponentLayout<ComponentType::B, 5, 11>,
ComponentLayout<ComponentType::G, 6, 5>,
ComponentLayout<ComponentType::R, 5, 0>>
>;
using RGB888_Layout = FormatLayout<PlaneLayout<uint32_t,
ComponentLayout<ComponentType::R, 8, 16>,
ComponentLayout<ComponentType::G, 8, 8>,
ComponentLayout<ComponentType::B, 8, 0>>
>;
using BGR888_Layout = FormatLayout<PlaneLayout<uint32_t,
ComponentLayout<ComponentType::B, 8, 16>,
ComponentLayout<ComponentType::G, 8, 8>,
ComponentLayout<ComponentType::R, 8, 0>>
>;
template<ComponentType C3, size_t size3, size_t offset3,
ComponentType C2, size_t size2, size_t offset2,
ComponentType C1, size_t size1, size_t offset1,
ComponentType C0, size_t size0, size_t offset0>
struct RGB_32_Layout
: public FormatLayout<PlaneLayout<uint32_t,
ComponentLayout<C0, size0, offset0>,
ComponentLayout<C1, size1, offset1>,
ComponentLayout<C2, size2, offset2>,
ComponentLayout<C3, size3, offset3>>>
{
};
template<ComponentType C3, ComponentType C2, ComponentType C1, ComponentType C0>
struct RGB_8_32_Layout
: public RGB_32_Layout<
C0, 8, 0,
C1, 8, 8,
C2, 8, 16,
C3, 8, 24>
{
};
using XRGB8888_Layout = RGB_8_32_Layout<ComponentType::X, ComponentType::R, ComponentType::G, ComponentType::B>;
using ARGB8888_Layout = RGB_8_32_Layout<ComponentType::A, ComponentType::R, ComponentType::G, ComponentType::B>;
using XBGR8888_Layout = RGB_8_32_Layout<ComponentType::X, ComponentType::B, ComponentType::G, ComponentType::R>;
using ABGR8888_Layout = RGB_8_32_Layout<ComponentType::A, ComponentType::B, ComponentType::G, ComponentType::R>;
using RGBX8888_Layout = RGB_8_32_Layout<ComponentType::R, ComponentType::G, ComponentType::B, ComponentType::X>;
using RGBA8888_Layout = RGB_8_32_Layout<ComponentType::R, ComponentType::G, ComponentType::B, ComponentType::A>;
using BGRX8888_Layout = RGB_8_32_Layout<ComponentType::B, ComponentType::G, ComponentType::R, ComponentType::X>;
using BGRA8888_Layout = RGB_8_32_Layout<ComponentType::B, ComponentType::G, ComponentType::R, ComponentType::A>;
using XRGB2101010_Layout = RGB_32_Layout<
ComponentType::X, 2, 30,
ComponentType::R, 10, 20,
ComponentType::G, 10, 10,
ComponentType::B, 10, 0
>;
using ARGB2101010_Layout = RGB_32_Layout<
ComponentType::A, 2, 30,
ComponentType::R, 10, 20,
ComponentType::G, 10, 10,
ComponentType::B, 10, 0
>;
using XBGR2101010_Layout = RGB_32_Layout<
ComponentType::X, 2, 30,
ComponentType::B, 10, 20,
ComponentType::G, 10, 10,
ComponentType::R, 10, 0
>;
using ABGR2101010_Layout = RGB_32_Layout<
ComponentType::A, 2, 30,
ComponentType::B, 10, 20,
ComponentType::G, 10, 10,
ComponentType::R, 10, 0
>;
using RGBX1010102_Layout = RGB_32_Layout<
ComponentType::R, 10, 22,
ComponentType::G, 10, 12,
ComponentType::B, 10, 2,
ComponentType::X, 2, 0
>;
using RGBA1010102_Layout = RGB_32_Layout<
ComponentType::R, 10, 22,
ComponentType::G, 10, 12,
ComponentType::B, 10, 2,
ComponentType::A, 2, 0
>;
using BGRX1010102_Layout = RGB_32_Layout<
ComponentType::B, 10, 22,
ComponentType::G, 10, 12,
ComponentType::R, 10, 2,
ComponentType::X, 2, 0
>;
using BGRA1010102_Layout = RGB_32_Layout<
ComponentType::B, 10, 22,
ComponentType::G, 10, 12,
ComponentType::R, 10, 2,
ComponentType::A, 2, 0
>;
template<typename Layout>
class ARGB_Writer
{
using Plane = typename Layout::template plane<0>;
using TStorage = typename Plane::storage_type;
static_assert(Layout::num_planes == 1);
static_assert(Plane::num_components == 3 || Plane::num_components == 4);
static_assert(Plane::template component_count<ComponentType::R>() == 1);
static_assert(Plane::template component_count<ComponentType::G>() == 1);
static_assert(Plane::template component_count<ComponentType::B>() == 1);
static constexpr bool has_alpha = Plane::template component_count<ComponentType::A>();
static constexpr bool has_padding = Plane::template component_count<ComponentType::X>();
static constexpr bool needs_packed_access = Plane::total_bits != Plane::storage_bits;
static constexpr size_t a_idx = Plane::template find_pos<ComponentType::A>();
static constexpr size_t x_idx = Plane::template find_pos<ComponentType::X>();
static constexpr size_t r_idx = Plane::template find_pos<ComponentType::R>();
static constexpr size_t g_idx = Plane::template find_pos<ComponentType::G>();
static constexpr size_t b_idx = Plane::template find_pos<ComponentType::B>();
static constexpr size_t a_shift = has_alpha ? 16 - Plane::template component_size<a_idx> : 0;
static constexpr size_t r_shift = 16 - Plane::template component_size<r_idx>;
static constexpr size_t g_shift = 16 - Plane::template component_size<g_idx>;
static constexpr size_t b_shift = 16 - Plane::template component_size<b_idx>;
static_assert(Plane::total_bits % 8 == 0);
static constexpr size_t bytes_per_pixel = Plane::total_bits / 8;
public:
// Pack and write num_pixels pixels from src_line to dst_line
static void pack_line(HasIndexOperatorReturning<TStorage> auto&& dst_line,
HasIndexOperatorReturning<RGB16> auto&& src_line,
size_t num_pixels)
{
for (size_t x = 0; x < num_pixels; x++) {
const RGB16& pix = src_line[x];
std::array<component_storage_type, Plane::num_components>
components;
if constexpr (has_alpha)
components[a_idx] = pix.a >> a_shift;
if constexpr (has_padding)
components[x_idx] = 0;
components[r_idx] = pix.r >> r_shift;
components[g_idx] = pix.g >> g_shift;
components[b_idx] = pix.b >> b_shift;
if constexpr (!needs_packed_access) {
dst_line[x] = Plane::pack(components);
} else {
auto dst_bytes = reinterpret_cast<uint8_t*>(&dst_line[0]);
TStorage packed = Plane::pack(components);
memcpy(dst_bytes + x * bytes_per_pixel, &packed,
bytes_per_pixel);
}
}
}
// Read and unpack num_pixels pixels from src_line to dst_line
static void unpack_line(HasIndexOperatorReturning<RGB16> auto&& dst_line,
HasIndexOperatorReturning<TStorage> auto&& src_line,
size_t num_pixels)
{
for (size_t x = 0; x < num_pixels; x++) {
decltype(Plane::unpack(src_line[x])) components;
if constexpr (!needs_packed_access) {
components = Plane::unpack(src_line[x]);
} else {
auto src_bytes =
reinterpret_cast<const uint8_t*>(&src_line[0]);
TStorage packed;
memcpy(&packed, src_bytes + x * bytes_per_pixel,
bytes_per_pixel);
components = Plane::unpack(packed);
}
dst_line[x] = RGB16 {
static_cast<uint16_t>(components[r_idx] << r_shift),
static_cast<uint16_t>(components[g_idx] << g_shift),
static_cast<uint16_t>(components[b_idx] << b_shift),
static_cast<uint16_t>(has_alpha ? components[a_idx] << a_shift : 0),
};
}
}
static void write_pattern(IFramebuffer& fb, size_t start_y, size_t end_y,
auto&& generate_line)
{
std::vector<RGB16> linebuf(fb.width());
// View to the plane
auto view = make_strided_fb_view<TStorage>(fb.map(0), fb.height(), fb.width(),
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());
}
}
static void get_line(IFramebuffer& fb, size_t w, size_t h, size_t row, std::span<RGB16> linebuf)
{
auto view = make_strided_fb_view<const TStorage>(fb.map(0), fb.height(), fb.width(),
fb.stride(0));
auto src = md::submdspan(view, row, md::full_extent);
unpack_line(linebuf, src);
}
};
} // namespace kms
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