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Graphics.h
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Graphics.h
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#pragma once
#include <numeric>
#include "Defines.h"
namespace graphics
{
inline color_t rgb_color(uchar r, uchar g, uchar b)
{
static color_t color = colors::alpha;
static auto shade_ptr = UCHAR_PTR(&color);
shade_ptr[0] = b;
shade_ptr[1] = g;
shade_ptr[2] = r;
return color;
}
inline color_t hsv_to_rgb(int h, uchar s, uchar v)
{
h = MODULO(h, 360);
const uchar
c = v * s / UINT8_MAX,
x = c - static_cast<uchar>(c * fabs(fmodf(h * FLOAT_1DIV60, 2.0f) - 1.0f));
static color_t color = colors::alpha;
static auto shade_ptr = UCHAR_PTR(&color);
shade_ptr[0] = v - c;
shade_ptr[1] = shade_ptr[0];
shade_ptr[2] = shade_ptr[0];
const uchar i = (h / 60 + 1) % 6;
shade_ptr[2 - (i >> 1)] += c;
shade_ptr[i % 3] += x;
return color;
}
struct surface
{
color_t* buffer, * end;
point size;
size_t buffer_size;
surface() : buffer{ nullptr }, end{ nullptr }, size{ 0, 0 }, buffer_size{ 0 } { return; }
surface(point size, bool reserve_buffer);
~surface();
};
inline surface::surface(point size, bool reserve_buffer = true) : size{ size }
{
buffer_size = SIZE_MUL(size.x, size.y);
if (reserve_buffer)
{
buffer = TYPE_MALLOC(color_t, buffer_size);
end = buffer + buffer_size;
return;
}
buffer = nullptr;
end = nullptr;
}
inline surface::~surface()
{
if (buffer)
{
free(buffer);
buffer = nullptr;
}
}
inline void copy(surface& src, surface& dest) { memcpy(dest.buffer, src.buffer, src.buffer_size << 2); }
inline void operator >>(surface& src, surface& dest) { memcpy(dest.buffer, src.buffer, src.buffer_size << 2); }
inline void clear(surface& dest) { memset(dest.buffer, 0, dest.buffer_size << 2); }
inline void fill(color_t color, surface& dest)
{
if (color == colors::black)
{
memset(dest.buffer, 0, dest.buffer_size << 2);
return;
}
for (color_t* px = dest.buffer; px < dest.end; ++px)
*px = color;
}
inline void operator >>(color_t color, surface& dest) { fill(color, dest); }
inline void clamp_to_surface(point& p, surface& surf)
{
p.x = std::clamp(p.x, 0, surf.size.x);
p.y = std::clamp(p.y, 0, surf.size.y);
}
}
namespace data
{
graphics::surface cache_surface = {};
inline void init_cache_surface()
{
init_cache();
cache_surface.buffer = cache_buffer;
}
}
namespace graphics
{
constexpr option_t
F_AUTO = 0,
F_RGB = 3,
F_RGBA = 4,
F_24B = F_RGB,
F_32B = F_RGBA;
surface* read_binary_into_surface(const char* file_path, option_t type = F_AUTO)
{
static uchar* src;
static FILE* file;
static point dim;
if (fopen_s(&file, file_path, "rb") != SUCCESS)
return nullptr;
fread(&dim.x, 4, 2, file);
if (SIZE_MUL(dim.x, dim.y) > data::cache_buffer_size)
{
fclose(file);
return nullptr;
}
if (type == F_AUTO)
{
const char* str_end = file_path;
while (*str_end != '\0') ++str_end;
type = (str_end[-1] == '2' && str_end[-2] == '3') ? F_32B : F_24B;
}
auto dest = new surface(dim);
for (auto px = dest->buffer; px < dest->end;)
{
fread(data::cache_shade, type, dim.x, file);
src = data::cache_shade;
for (color_t* x_end = px + dim.x; px < x_end; px++, src += type)
*px = *reinterpret_cast<color_t*>(src);
}
fclose(file);
return dest;
}
inline void reverse_colors(surface& surf)
{
for (auto px = surf.buffer; px < surf.end; px++)
*px = ~*px;
}
inline void black_and_white(surface& surf)
{
for (auto px = surf.buffer; px < surf.end; px++)
*px = ((UCHAR_PTR(px)[0] + UCHAR_PTR(px)[1] + UCHAR_PTR(px)[2]) >= 0x180) ? colors::white : colors::black;
}
void gray_scale(surface& surf)
{
for (auto px = UCHAR_PTR(surf.buffer); px < UCHAR_PTR(surf.end); px += 4)
{
uchar color = (px[0] + px[1] + px[2]) / 3;
px[0] = color;
px[1] = color;
px[2] = color;
}
}
void checkers(surface& surf, int size, color_t c1, color_t c2)
{
static point err;
static color_t colors[2];
static uchar yc, xc;
colors[0] = c1;
colors[1] = c2;
err.y = 1;
yc = 0;
color_t color = c1;
for (auto px = surf.buffer; px < surf.end; err.y++)
{
err.x = 1;
xc = yc;
for (auto x_end = px + surf.size.x; px < x_end; px++, err.x++)
{
*px = color;
if (err.x == size)
{
xc ^= 1;
color = colors[xc];
err.x = 0;
}
}
if (err.y == size)
{
yc ^= 1;
color = colors[yc];
err.y = 0;
}
}
}
struct three_2d_matrix
{
uchar
x11, x12, x13,
x21, x22, x23,
x31, x32, x33;
};
struct three_3d_matrix
{
three_2d_matrix blue, green, red;
};
option_t complex_nine_convolution(surface& surf, three_3d_matrix& value)
{
if (surf.buffer_size > data::cache_buffer_size) return 1;
if (data::cache_buffer == nullptr) return 2;
data::cache_surface.end = data::cache_buffer + surf.buffer_size;
surf >> data::cache_surface;
static three_3d_matrix sums;
// bottom-left
sums.blue.x11 = value.blue.x22 + value.blue.x23 + value.blue.x32 + value.blue.x33;
sums.green.x11 = value.green.x22 + value.green.x23 + value.green.x32 + value.green.x33;
sums.red.x11 = value.red.x22 + value.red.x23 + value.red.x32 + value.red.x33;
// bottom-right
sums.blue.x13 = value.blue.x22 + value.blue.x21 + value.blue.x32 + value.blue.x31;
sums.green.x13 = value.green.x22 + value.green.x21 + value.green.x32 + value.green.x31;
sums.red.x13 = value.red.x22 + value.red.x21 + value.red.x32 + value.red.x31;
// top-left
sums.blue.x31 = value.blue.x22 + value.blue.x23 + value.blue.x12 + value.blue.x13;
sums.green.x31 = value.green.x22 + value.green.x23 + value.green.x12 + value.green.x13;
sums.red.x31 = value.red.x22 + value.red.x23 + value.red.x12 + value.red.x13;
// top-right
sums.blue.x33 = value.blue.x22 + value.blue.x21 + value.blue.x12 + value.blue.x11;
sums.green.x33 = value.green.x22 + value.green.x21 + value.green.x12 + value.green.x11;
sums.red.x33 = value.red.x22 + value.red.x21 + value.red.x12 + value.red.x11;
// bottom
sums.blue.x12 = sums.blue.x11 + value.blue.x21 + value.blue.x31;
sums.green.x12 = sums.green.x11 + value.green.x21 + value.green.x31;
sums.red.x12 = sums.red.x11 + value.red.x21 + value.red.x31;
// left
sums.blue.x21 = sums.blue.x11 + value.blue.x12 + value.blue.x13;
sums.green.x21 = sums.green.x11 + value.green.x12 + value.green.x13;
sums.red.x21 = sums.red.x11 + value.red.x12 + value.red.x13;
// top
sums.blue.x32 = sums.blue.x31 + value.blue.x21 + value.blue.x11;
sums.green.x32 = sums.green.x31 + value.green.x21 + value.green.x11;
sums.red.x32 = sums.red.x31 + value.red.x21 + value.red.x11;
// right
sums.blue.x23 = sums.blue.x13 + value.blue.x11 + value.blue.x12;
sums.green.x23 = sums.green.x13 + value.green.x11 + value.green.x12;
sums.red.x23 = sums.red.x13 + value.red.x11 + value.red.x12;
// middle
sums.blue.x22 = sums.blue.x12 + value.blue.x11 + value.blue.x12 + value.blue.x13;
sums.green.x22 = sums.green.x12 + value.green.x11 + value.green.x12 + value.green.x13;
sums.red.x22 = sums.red.x12 + value.red.x11 + value.red.x12 + value.red.x13;
const int
t0o = surf.size.x << 2, b0o = -t0o,
tl0o = t0o - 4, tr0o = t0o + 4,
bl0o = b0o - 4, br0o = b0o + 4,
tdl0o = t0o - 8,
t1o = t0o | 1, t2o = t0o | 2,
tl1o = tl0o | 1, tl2o = tl0o | 2,
tr1o = tr0o | 1, tr2o = tr0o | 2,
b1o = b0o | 1, b2o = b0o | 2,
bl1o = bl0o | 1, bl2o = bl0o | 2,
br1o = br0o | 1, br2o = br0o | 2;
// bottom-left
auto dp = UCHAR_PTR(surf.buffer);
dp[0] = sums.blue.x11 != 0 ? (
dp[0] * value.blue.x22 +
dp[4] * value.blue.x23 +
dp[t0o] * value.blue.x32 +
dp[tr0o] * value.blue.x33
) / sums.blue.x11 : colors::black;
dp[1] = sums.green.x11 != 0 ? (
dp[1] * value.green.x22 +
dp[5] * value.green.x23 +
dp[t1o] * value.green.x32 +
dp[tr1o] * value.green.x33
) / sums.green.x11 : colors::black;
dp[2] = sums.red.x11 != 0 ? (
dp[2] * value.red.x22 +
dp[6] * value.red.x23 +
dp[t2o] * value.red.x32 +
dp[tr2o] * value.red.x33
) / sums.red.x11 : colors::black;
// bottom-right
dp += tl0o;
dp[0] = sums.blue.x13 != 0 ? (
dp[0] * value.blue.x22 +
dp[-4] * value.blue.x21 +
dp[t0o] * value.blue.x32 +
dp[tl0o] * value.blue.x31
) / sums.blue.x13 : colors::black;
dp[1] = sums.green.x13 != 0 ? (
dp[1] * value.green.x22 +
dp[-3] * value.green.x21 +
dp[t1o] * value.green.x32 +
dp[tl1o] * value.green.x31
) / sums.green.x13 : colors::black;
dp[2] = sums.red.x13 != 0 ? (
dp[2] * value.red.x22 +
dp[-2] * value.red.x21 +
dp[t2o] * value.red.x32 +
dp[tl2o] * value.red.x31
) / sums.red.x13 : colors::black;
// top-right
dp = UCHAR_PTR(surf.end - 1);
dp[0] = sums.blue.x33 != 0 ? (
dp[0] * value.blue.x22 +
dp[-4] * value.blue.x21 +
dp[b0o] * value.blue.x12 +
dp[bl0o] * value.blue.x11
) / sums.blue.x33 : colors::black;
dp[1] = sums.green.x33 != 0 ? (
dp[1] * value.green.x22 +
dp[-3] * value.green.x21 +
dp[b1o] * value.green.x12 +
dp[bl1o] * value.green.x11
) / sums.green.x33 : colors::black;
dp[2] = sums.red.x33 != 0 ? (
dp[2] * value.red.x22 +
dp[-2] * value.red.x21 +
dp[b2o] * value.red.x12 +
dp[bl2o] * value.red.x11
) / sums.red.x33 : colors::black;
// top-left
dp -= tl0o;
dp[0] = sums.blue.x31 != 0 ? (
dp[0] * value.blue.x22 +
dp[4] * value.blue.x23 +
dp[b0o] * value.blue.x12 +
dp[br0o] * value.blue.x13
) / sums.blue.x31 : colors::black;
dp[1] = sums.green.x31 != 0 ? (
dp[1] * value.green.x22 +
dp[5] * value.green.x23 +
dp[b1o] * value.green.x12 +
dp[br1o] * value.green.x13
) / sums.green.x31 : colors::black;
dp[2] = sums.red.x31 != 0 ? (
dp[2] * value.red.x22 +
dp[6] * value.red.x23 +
dp[b2o] * value.red.x12 +
dp[br2o] * value.red.x13
) / sums.red.x31 : colors::black;
// bottom and top
for (auto dpb = UCHAR_PTR(surf.buffer + 1), dpt = UCHAR_PTR(surf.end) - tl0o, end = dpb + tdl0o,
spb = UCHAR_PTR(data::cache_buffer + 1), spt = UCHAR_PTR(data::cache_surface.end) - tl0o;
dpb < end; dpb += 4, dpt += 4, spb += 4, spt += 4)
{
dpb[0] = sums.blue.x12 ? (
spb[-4] * value.blue.x21 +
spb[0] * value.blue.x22 +
spb[4] * value.blue.x23 +
spb[tl0o] * value.blue.x31 +
spb[t0o] * value.blue.x32 +
spb[tr0o] * value.blue.x33
) / sums.blue.x12 : colors::black;
dpb[1] = sums.green.x12 ? (
spb[-3] * value.green.x21 +
spb[1] * value.green.x22 +
spb[5] * value.green.x23 +
spb[tl1o] * value.green.x31 +
spb[t1o] * value.green.x32 +
spb[tr1o] * value.green.x33
) / sums.green.x12 : colors::black;
dpb[2] = sums.red.x12 ? (
spb[-2] * value.red.x21 +
spb[2] * value.red.x22 +
spb[6] * value.red.x23 +
spb[tl2o] * value.red.x31 +
spb[t2o] * value.red.x32 +
spb[tr2o] * value.red.x33
) / sums.red.x12 : colors::black;
dpt[0] = sums.blue.x32 ? (
spt[-4] * value.blue.x21 +
spt[0] * value.blue.x22 +
spt[4] * value.blue.x23 +
spt[bl0o] * value.blue.x11 +
spt[b0o] * value.blue.x12 +
spt[br0o] * value.blue.x13
) / sums.blue.x32 : colors::black;
dpt[1] = sums.green.x32 ? (
spt[-3] * value.green.x21 +
spt[1] * value.green.x22 +
spt[5] * value.green.x23 +
spt[bl1o] * value.green.x11 +
spt[b1o] * value.green.x12 +
spt[br1o] * value.green.x13
) / sums.green.x32 : colors::black;
dpt[2] = sums.red.x32 ? (
spt[-2] * value.red.x21 +
spt[2] * value.red.x22 +
spt[6] * value.red.x23 +
spt[bl2o] * value.red.x11 +
spt[b2o] * value.red.x12 +
spt[br2o] * value.red.x13
) / sums.red.x32 : colors::black;
}
// left and right
for (auto dpb = UCHAR_PTR(surf.buffer + surf.size.x), dpt = dpb + tl0o, end = UCHAR_PTR(surf.end - surf.size.x),
spb = UCHAR_PTR(data::cache_buffer + surf.size.x), spt = spb + tl0o;
dpb < end; dpb += t0o, dpt += t0o, spb += t0o, spt += t0o)
{
dpb[0] = sums.blue.x21 ? (
spb[0] * value.blue.x22 +
spb[4] * value.blue.x23 +
spb[t0o] * value.blue.x32 +
spb[tr0o] * value.blue.x33 +
spb[b0o] * value.blue.x12 +
spb[br0o] * value.blue.x13
) / sums.blue.x21 : colors::black;
dpb[1] = sums.green.x21 ? (
spb[1] * value.green.x22 +
spb[5] * value.green.x23 +
spb[t1o] * value.green.x32 +
spb[tr1o] * value.green.x33 +
spb[b1o] * value.green.x12 +
spb[br1o] * value.green.x13
) / sums.green.x21 : colors::black;
dpb[2] = sums.red.x21 ? (
spb[2] * value.red.x22 +
spb[6] * value.red.x23 +
spb[t2o] * value.red.x32 +
spb[tr2o] * value.red.x33 +
spb[b2o] * value.red.x12 +
spb[br2o] * value.red.x13
) / sums.red.x21 : colors::black;
dpb[0] = sums.blue.x23 ? (
spb[0] * value.blue.x22 +
spb[4] * value.blue.x23 +
spb[t0o] * value.blue.x32 +
spb[tl0o] * value.blue.x31 +
spb[b0o] * value.blue.x12 +
spb[bl0o] * value.blue.x11
) / sums.blue.x23 : colors::black;
dpb[1] = sums.green.x23 ? (
spb[1] * value.green.x22 +
spb[5] * value.green.x23 +
spb[t1o] * value.green.x32 +
spb[tl1o] * value.green.x31 +
spb[b1o] * value.green.x12 +
spb[bl1o] * value.green.x11
) / sums.green.x23 : colors::black;
dpb[2] = sums.red.x23 ? (
spb[2] * value.red.x22 +
spb[6] * value.red.x23 +
spb[t2o] * value.red.x32 +
spb[tl2o] * value.red.x31 +
spb[b2o] * value.red.x12 +
spb[bl2o] * value.red.x11
) / sums.red.x23 : colors::black;
}
for (auto dp = UCHAR_PTR(surf.buffer + surf.size.x + 1), end = UCHAR_PTR(surf.end - surf.size.x),
sp = UCHAR_PTR(data::cache_buffer + surf.size.x + 1); dp < end; dp += 8, sp += 8)
{
for (auto x_end = dp + tdl0o; dp < x_end; dp += 4, sp += 4)
{
dp[0] = sums.blue.x22 != 0 ? (
sp[tl0o] * value.blue.x11 + sp[t0o] * value.blue.x12 + sp[tr0o] * value.blue.x13 +
sp[-4] * value.blue.x21 + sp[0] * value.blue.x22 + sp[4] * value.blue.x23 +
sp[bl0o] * value.blue.x31 + sp[b0o] * value.blue.x32 + sp[br0o] * value.blue.x33
) / sums.blue.x22 : colors::black;
dp[1] = sums.green.x22 != 0 ? (
sp[tl1o] * value.green.x11 + sp[t1o] * value.green.x12 + sp[tr1o] * value.green.x13 +
sp[-3] * value.green.x21 + sp[1] * value.green.x22 + sp[5] * value.green.x23 +
sp[bl1o] * value.green.x31 + sp[b1o] * value.green.x32 + sp[br1o] * value.green.x33
) / sums.green.x22 : colors::black;
dp[2] = sums.red.x22 != 0 ? (
sp[tl2o] * value.red.x11 + sp[t2o] * value.red.x12 + sp[tr2o] * value.red.x13 +
sp[-2] * value.red.x21 + sp[2] * value.red.x22 + sp[6] * value.red.x23 +
sp[bl2o] * value.red.x31 + sp[b2o] * value.red.x32 + sp[br2o] * value.red.x33
) / sums.red.x22 : colors::black;
}
}
return SUCCESS;
}
/*
aka: complex_nine_convolution(surface,
{{
0, 1, 0
1, 1, 1
0, 1, 0
}, {
0, 1, 0
1, 1, 1
0, 1, 0
}, {
0, 1, 0
1, 1, 1
0, 1, 0
}})
*/
option_t blur(surface& surf)
{
if (surf.buffer_size > data::cache_buffer_size) return 1;
if (data::cache_buffer == nullptr) return 2;
data::cache_surface.end = data::cache_buffer + surf.buffer_size;
surf >> data::cache_surface;
const int t0o = surf.size.x << 2, b0o = -t0o,
tl0o = t0o - 4, tdl0o = t0o - 8,
t1o = t0o | 1, t2o = t0o | 2,
b1o = b0o | 1, b2o = b0o | 2;
auto dp = UCHAR_PTR(surf.buffer);
dp[0] = (dp[0] + dp[4] + dp[t0o]) / 3;
dp[0] = (dp[1] + dp[5] + dp[t1o]) / 3;
dp[0] = (dp[2] + dp[6] + dp[t2o]) / 3;
dp += tl0o;
dp[0] = (dp[0] + dp[-4] + dp[t0o]) / 3;
dp[0] = (dp[1] + dp[-3] + dp[t1o]) / 3;
dp[0] = (dp[2] + dp[-2] + dp[t2o]) / 3;
dp = UCHAR_PTR(surf.end - 1);
dp[0] = (dp[0] + dp[-4] + dp[b0o]) / 3;
dp[0] = (dp[1] + dp[-3] + dp[b1o]) / 3;
dp[0] = (dp[2] + dp[-2] + dp[b2o]) / 3;
dp -= tl0o;
dp[0] = (dp[0] + dp[4] + dp[b0o]) / 3;
dp[0] = (dp[1] + dp[5] + dp[b1o]) / 3;
dp[0] = (dp[2] + dp[6] + dp[b2o]) / 3;
for (auto dpb = UCHAR_PTR(surf.buffer + 1), dpt = UCHAR_PTR(surf.end) - tl0o, end = dpb + tdl0o,
spb = UCHAR_PTR(data::cache_buffer + 1), spt = UCHAR_PTR(data::cache_surface.end) - tl0o;
dpb < end; dpb += 4, dpt += 4, spb += 4, spt += 4)
{
dpb[0] = (spb[0] + spb[4] + spb[-4] + spb[t0o]) >> 2;
dpb[1] = (spb[1] + spb[5] + spb[-3] + spb[t1o]) >> 2;
dpb[2] = (spb[2] + spb[6] + spb[-2] + spb[t2o]) >> 2;
dpt[0] = (spt[0] + spt[4] + spt[-4] + spt[b0o]) >> 2;
dpt[1] = (spt[1] + spt[5] + spt[-3] + spt[b1o]) >> 2;
dpt[2] = (spt[2] + spt[6] + spt[-2] + spt[b2o]) >> 2;
}
for (auto dpb = UCHAR_PTR(surf.buffer + surf.size.x), dpt = dpb + tl0o, end = UCHAR_PTR(surf.end - surf.size.x),
spb = UCHAR_PTR(data::cache_buffer + surf.size.x), spt = spb + tl0o;
dpb < end; dpb += tl0o, dpt += tl0o, spb += tl0o, spt += tl0o)
{
dpb[0] = (spb[0] + spb[4] + spb[t0o] + spb[b0o]) >> 2;
dpb[1] = (spb[1] + spb[5] + spb[t1o] + spb[b1o]) >> 2;
dpb[2] = (spb[2] + spb[6] + spb[t2o] + spb[b2o]) >> 2;
dpt[0] = (spt[0] + spt[-4] + spt[t0o] + spt[b0o]) >> 2;
dpt[1] = (spt[1] + spt[-3] + spt[t1o] + spt[b1o]) >> 2;
dpt[2] = (spt[2] + spt[-2] + spt[t2o] + spt[b2o]) >> 2;
}
for (auto dp = UCHAR_PTR(surf.buffer + surf.size.x + 1), end = UCHAR_PTR(surf.end - surf.size.x),
sp = UCHAR_PTR(data::cache_buffer + surf.size.x + 1); dp < end; dp += 8, sp += 8)
{
for (auto x_end = dp + t2o; dp < x_end; dp += 4, sp += 4)
{
dp[0] = (sp[0] + sp[4] + sp[-4] + sp[t0o] + sp[b0o]) / 5;
dp[1] = (sp[1] + sp[5] + sp[-3] + sp[t1o] + sp[b1o]) / 5;
dp[2] = (sp[2] + sp[6] + sp[-2] + sp[t2o] + sp[b2o]) / 5;
}
}
return SUCCESS;
}
option_t blur(surface& surf, int main_amount)
{
if (surf.buffer_size > data::cache_buffer_size) return 1;
data::cache_surface.end = data::cache_buffer + surf.buffer_size;
surf >> data::cache_surface;
const int y_step = surf.size.x << 2, ny_step = -y_step,
y_step1n = y_step - 4, y_step2n = y_step - 8,
y_step1o = y_step | 1, y_step2o = y_step | 2,
ny_step1o = ny_step | 1, ny_step2o = ny_step | 2;
const int f1d = main_amount + 2, f2d = main_amount + 3, f3d = main_amount + 4;
auto dp = UCHAR_PTR(surf.buffer);
dp[0] = ((dp[0] * main_amount) + dp[4] + dp[y_step]) / f1d;
dp[1] = ((dp[1] * main_amount) + dp[5] + dp[y_step1o]) / f1d;
dp[2] = ((dp[2] * main_amount) + dp[6] + dp[y_step2o]) / f1d;
dp += y_step1n;
dp[0] = ((dp[0] * main_amount) + dp[-4] + dp[y_step]) / f1d;
dp[1] = ((dp[1] * main_amount) + dp[-3] + dp[y_step1o]) / f1d;
dp[2] = ((dp[2] * main_amount) + dp[-2] + dp[y_step2o]) / f1d;
dp = UCHAR_PTR(surf.end - 1);
dp[0] = ((dp[0] * main_amount) + dp[-4] + dp[ny_step]) / f1d;
dp[1] = ((dp[1] * main_amount) + dp[-3] + dp[ny_step1o]) / f1d;
dp[2] = ((dp[2] * main_amount) + dp[-2] + dp[ny_step2o]) / f1d;
dp -= y_step1n;
dp[0] = ((dp[0] * main_amount) + dp[4] + dp[ny_step]) / f1d;
dp[1] = ((dp[1] * main_amount) + dp[5] + dp[ny_step1o]) / f1d;
dp[2] = ((dp[2] * main_amount) + dp[6] + dp[ny_step2o]) / f1d;
for (auto dpb = UCHAR_PTR(surf.buffer + 1), dpt = UCHAR_PTR(surf.end) - y_step1n, end = dpb + y_step2n,
spb = UCHAR_PTR(data::cache_buffer + 1), spt = UCHAR_PTR(data::cache_surface.end) - y_step1n;
dpb < end; dpb += 4, dpt += 4, spb += 4, spt += 4)
{
dpb[0] = ((spb[0] * main_amount) + spb[4] + spb[-4] + spb[y_step]) / f2d;
dpb[1] = ((spb[1] * main_amount) + spb[5] + spb[-3] + spb[y_step1o]) / f2d;
dpb[2] = ((spb[2] * main_amount) + spb[6] + spb[-2] + spb[y_step2o]) / f2d;
dpt[0] = ((spt[0] * main_amount) + spt[4] + spt[-4] + spt[ny_step]) / f2d;
dpt[1] = ((spt[1] * main_amount) + spt[5] + spt[-3] + spt[ny_step1o]) / f2d;
dpt[2] = ((spt[2] * main_amount) + spt[6] + spt[-2] + spt[ny_step2o]) / f2d;
}
for (auto dpb = UCHAR_PTR(surf.buffer + surf.size.x), dpt = dpb + y_step1n, end = UCHAR_PTR(surf.end - surf.size.x),
spb = UCHAR_PTR(data::cache_buffer + surf.size.x), spt = spb + y_step1n;
dpb < end; dpb += y_step, dpt += y_step, spb += y_step, spt += y_step)
{
dpb[0] = ((spb[0] * main_amount) + spb[4] + spb[y_step] + spb[ny_step]) / f2d;
dpb[1] = ((spb[1] * main_amount) + spb[5] + spb[y_step1o] + spb[ny_step1o]) / f2d;
dpb[2] = ((spb[2] * main_amount) + spb[6] + spb[y_step2o] + spb[ny_step2o]) / f2d;
dpt[0] = ((spt[0] * main_amount) + spt[-4] + spt[y_step] + spt[ny_step]) / f2d;
dpt[1] = ((spt[1] * main_amount) + spt[-3] + spt[y_step1o] + spt[ny_step1o]) / f2d;
dpt[2] = ((spt[2] * main_amount) + spt[-2] + spt[y_step2o] + spt[ny_step2o]) / f2d;
}
for (auto dp = UCHAR_PTR(surf.buffer + surf.size.x + 1), end = UCHAR_PTR(surf.end - surf.size.x),
sp = UCHAR_PTR(data::cache_buffer + surf.size.x + 1); dp < end; dp += 8, sp += 8)
{
for (auto x_end = dp + y_step2n; dp < x_end; dp += 4, sp += 4)
{
dp[0] = ((sp[0] * main_amount) + sp[4] + sp[-4] + sp[y_step] + sp[ny_step]) / f3d;
dp[1] = ((sp[1] * main_amount) + sp[5] + sp[-3] + sp[y_step1o] + sp[ny_step1o]) / f3d;
dp[2] = ((sp[2] * main_amount) + sp[6] + sp[-2] + sp[y_step2o] + sp[ny_step2o]) / f3d;
}
}
}
void difference(surface& s1, surface& s2, surface& s_output)
{
for (uchar* px1 = UCHAR_PTR(s1.buffer),
*px2 = UCHAR_PTR(s2.buffer),
*px_o = UCHAR_PTR(s_output.buffer);
px1 < UCHAR_PTR(s1.end); px1++, px2++, px_o++)
*px_o = *px1 - *px2;
}
inline bool is_inside(point pos, point start, point end)
{
return (
pos.x >= start.x
&& pos.x < end.x
&& pos.y >= start.y
&& pos.y < end.y
);
}
inline bool is_inside_size(point pos, point start, point size)
{
return (
pos.x >= start.x
&& pos.y >= start.y
&& pos.x < start.x + size.x
&& pos.y < start.y + size.y
);
}
inline bool is_inside(point pos, point lim)
{
return (
pos.x >= 0
&& pos.y >= 0
&& pos.x < lim.x
&& pos.y < lim.y
);
}
inline color_t* get_raw_pixel(point pos, surface& surf) { return &surf.buffer[pos.x + pos.y * surf.size.x]; }
inline color_t get_raw_color(point pos, surface& surf) { return surf.buffer[pos.x + pos.y * surf.size.x]; }
inline color_t* get_pixel(point pos, surface& surf)
{
return is_inside(pos, surf.size) ? get_raw_pixel(pos, surf) : nullptr;
}
inline color_t get_color(point pos, surface& surf)
{
return is_inside(pos, surf.size) ? get_raw_color(pos, surf) : colors::transparent;
}
inline void set_sure_pixel(point pos, color_t color, surface& surf)
{
*get_raw_pixel(pos, surf) = color;
}
inline void set_pixel(point pos, color_t color, surface& surf)
{
if (is_inside(pos, surf.size))
*get_raw_pixel(pos, surf) = color;
}
inline void set_pixel(point pos, surface& surf)
{
if (is_inside(pos, surf.size))
{
color_t* c = get_raw_pixel(pos, surf);
*c = *c;
}
}
inline bool straighten_line(point start, point& end)
{
if (abs(end.y - start.y) > abs(end.x - start.x))
{
end.x = start.x;
return true;
}
end.y = start.y;
return false;
}
void resize_surface(surface& src, surface& dest)
{
if (src.size == dest.size) return src >> dest;
auto [mx, my] = src.size / dest.size;
auto [evx, evy] = src.size % dest.size;
my = (my - 1) * src.size.x;
int errx, erry = evy;
const color_t* sp = src.buffer;
for (color_t* dp = dest.buffer; dp < dest.end; sp += my, erry += evy)
{
errx = evx;
for (const color_t* x_end = dp + dest.size.x; dp < x_end; ++dp, errx += evx, sp += mx)
{
*dp = *sp;
if (errx >= dest.size.x)
{
++sp;
errx -= dest.size.x;
}
}
if (erry >= dest.size.y)
{
sp += src.size.x;
erry -= dest.size.y;
}
}
}
constexpr option_t BLIT_SIGNATURE = 0B10;
void _blit_cut_surface(surface& bs, surface& ss, point pos, uchar alpha, bool check)
{
point start = pos, size = ss.size;
if (check)
{
size += pos;
clamp_to_surface(start, bs);
clamp_to_surface(size, bs);
if (start ^= size) return;
size -= start;
}
color_t* bs_p = get_raw_pixel(start, bs), * ss_p = get_raw_pixel(start - pos, ss);
const int ysb = bs.size.x - size.x, yss = ss.size.x - size.x;
color_t*& src = alpha ? ss_p : bs_p;
color_t*& dest = alpha ? bs_p : ss_p;
if (alpha & 0b1)
{
for (color_t* ss_end = ss_p + ss.size.x * size.y; ss_p < ss_end; ss_p += yss, bs_p += ysb)
for (color_t* ss_x_end = ss_p + size.x * size.y; ss_p < ss_x_end; ++ss_p, ++bs_p)
if (*src != colors::transparent) *dest = *src;
}
for (color_t* ss_end = ss_p + ss.size.x * size.y; ss_p < ss_end; ss_p += yss, bs_p += ysb)
for (color_t* ss_x_end = ss_p + size.x * size.y; ss_p < ss_x_end; ++ss_p, ++bs_p)
*dest = *src;
}
inline void blit_surface(surface& dest, surface& src, point pos, bool alpha = false, bool check = true)
{
_blit_cut_surface(dest, src, pos, alpha | BLIT_SIGNATURE, check);
}
inline void cut_surface(surface& dest, surface& src, point pos, bool alpha = false, bool check = true)
{
_blit_cut_surface(src, dest, pos, 0, check);
}
inline void _C1_alpha_set(color_t* px, uchar r, uchar g, uchar b, uchar a)
{
uchar* pxs = UCHAR_PTR(px);
pxs[0] = slide_uchar(pxs[0], b, a);
pxs[1] = slide_uchar(pxs[1], g, a);
pxs[2] = slide_uchar(pxs[2], r, a);
}
namespace draw
{
void grid(int grid_size, point offset, color_t color, surface& surf, bool anti_aliasing = false)
{
offset.x = MODULO(offset.x, grid_size);
offset.y = MODULO(offset.y, grid_size);
int y_step = grid_size * surf.size.x;
if (anti_aliasing)
{
uchar* shade = reinterpret_cast<uchar*>(&color);
uchar cr = shade[2];
uchar cg = shade[1];
uchar cb = shade[0];
color_t* spx = surf.buffer + offset.x;
if (offset.x == 0)
{
for (color_t* px = spx; px < surf.end; px += surf.size.x)
{
px[0] = color;
_C1_alpha_set(px + 1, cr, cg, cb, 0x20);
}
spx += grid_size;
}
for (color_t* x_end = surf.buffer + surf.size.x - grid_size; spx < x_end; spx += grid_size)
for (color_t* px = spx; px < surf.end; px += surf.size.x)
{
_C1_alpha_set(px - 1, cr, cg, cb, 0x20);
px[0] = color;
_C1_alpha_set(px + 1, cr, cg, cb, 0x20);
}
if ((surf.size.x - offset.x) % grid_size == 1)
for (color_t* px = spx; px < surf.end; px += surf.size.x)
{
_C1_alpha_set(px - 1, cr, cg, cb, 0x20);
px[0] = color;
}
else
for (color_t* px = spx; px < surf.end; px += surf.size.x)
{
_C1_alpha_set(px - 1, cr, cg, cb, 0x20);
px[0] = color;
_C1_alpha_set(px + 1, cr, cg, cb, 0x20);
}
spx = surf.buffer + offset.y * surf.size.x;
if (offset.y == 0)
{
for (color_t* px = spx, *x_end = spx + surf.size.x; px < x_end; ++px)
{
px[0] = color;
_C1_alpha_set(px + surf.size.x, cr, cg, cb, 0x20);
}
spx += y_step;
}
for (color_t* y_end = surf.end - y_step; spx < y_end; spx += y_step)
for (color_t* px = spx, *x_end = spx + surf.size.x; px < x_end; ++px)
{
_C1_alpha_set(px - surf.size.x, cr, cg, cb, 0x20);
px[0] = color;
_C1_alpha_set(px + surf.size.x, cr, cg, cb, 0x20);
}
if ((surf.size.y - offset.y) % grid_size == 1)
for (color_t* px = spx, *x_end = spx + surf.size.x; px < x_end; ++px)
{
_C1_alpha_set(px - surf.size.x, cr, cg, cb, 0x20);
px[0] = color;
}
else
for (color_t* px = spx, *x_end = spx + surf.size.x; px < x_end; ++px)
{
_C1_alpha_set(px - surf.size.x, cr, cg, cb, 0x20);
px[0] = color;
_C1_alpha_set(px + surf.size.x, cr, cg, cb, 0x20);
}
return;
}
for (color_t* spx = surf.buffer + offset.x, *x_end = surf.buffer + surf.size.x; spx < x_end; spx += grid_size)
for (color_t* px = spx; px < surf.end; px += surf.size.x)
*px = color;
for (color_t* spx = surf.buffer + offset.y * surf.size.x; spx < surf.end; spx += y_step)
for (color_t* px = spx, *x_end = spx + surf.size.x; px < x_end; ++px)
*px = color;
}
void grid_dots(int grid_size, point offset, color_t color, surface& surf)
{
offset.x = MODULO(offset.x, grid_size);
offset.y = MODULO(offset.y, grid_size);
int y_step = surf.size.x * (grid_size - 1) + surf.size.x % grid_size,
x_bias = surf.size.x - offset.x;
for (color_t* px = get_raw_pixel(offset, surf); px < surf.end; px += y_step)
for (color_t* x_end = px + x_bias; px < x_end; px += grid_size)
*px = color;
}
void fill_rect(point start, point end, color_t color, surface& surf, uchar alpha = UINT8_MAX)
{
clamp_to_surface(start, surf);
clamp_to_surface(end, surf);
if (start ^= end) return;
start | end;
point size = end - start;
uint* px = get_raw_pixel(start, surf);
int y_step = surf.size.x - size.x;
if (alpha == UINT8_MAX)
{
for (const color_t* y_end = px + size.y * surf.size.x; px < y_end; px += y_step)
for (const color_t* x_end = px + size.x; px < x_end; ++px)
*px = color;
return;
}
y_step <<= 2;
size <<= 2;
auto px_ptr = UCHAR_PTR(px);
auto color_ptr = UCHAR_PTR(&color);
uchar b = color_ptr[0],
g = color_ptr[1],
r = color_ptr[2];
for (const uchar* y_end = px_ptr + size.y * surf.size.x; px_ptr < y_end; px_ptr += y_step)
for (const uchar* x_end = px_ptr + size.x; px_ptr < x_end; px_ptr += 4)
{
px_ptr[0] = slide_uchar(px_ptr[0], b, alpha);
px_ptr[1] = slide_uchar(px_ptr[1], g, alpha);
px_ptr[2] = slide_uchar(px_ptr[2], r, alpha);
}
}