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#include <cstring>
#include <fmt/format.h>
#include <functional>
#include <optional>
#include <span>
#include <stdexcept>
#include <vector>
#ifdef HAS_PTHREAD
#include <thread>
#endif
#include <kms++/kms++.h>
#include <kms++util/kms++util.h>
#include "conv.h"
using namespace std;
namespace kms
{
static RGB16 get_test_pattern_pixel_16(size_t w, size_t h, size_t x, size_t y)
{
const unsigned mw = 20;
const unsigned xm1 = mw;
const unsigned xm2 = w - mw - 1;
const unsigned ym1 = mw;
const unsigned ym2 = h - mw - 1;
// white margin lines
if (x == xm1 || x == xm2 || y == ym1 || y == ym2)
return RGB16::from_8(255, 255, 255);
// white box in top left corner
else if (x < xm1 && y < ym1)
return RGB16::from_8(255, 255, 255);
// white box outlines to corners
else if ((x == 0 || x == w - 1) && (y < ym1 || y > ym2))
return RGB16::from_8(255, 255, 255);
// white box outlines to corners
else if ((y == 0 || y == h - 1) && (x < xm1 || x > xm2))
return RGB16::from_8(255, 255, 255);
// blue bar on the left
else if (x < xm1 && (y > ym1 && y < ym2))
return RGB16::from_8(0, 0, 255);
// blue bar on the top
else if (y < ym1 && (x > xm1 && x < xm2))
return RGB16::from_8(0, 0, 255);
// red bar on the right
else if (x > xm2 && (y > ym1 && y < ym2))
return RGB16::from_8(255, 0, 0);
// red bar on the bottom
else if (y > ym2 && (x > xm1 && x < xm2))
return RGB16::from_8(255, 0, 0);
// inside the margins
else if (x > xm1 && x < xm2 && y > ym1 && y < ym2) {
// diagonal line
if (x == y || w - x == h - y)
return RGB16::from_8(255, 255, 255);
// diagonal line
else if (w - x - 1 == y || x == h - y - 1)
return RGB16::from_8(255, 255, 255);
else {
int t = (x - xm1 - 1) * 8 / (xm2 - xm1 - 1);
unsigned r = 0, g = 0, b = 0;
unsigned c = (y - ym1 - 1) % 256;
switch (t) {
case 0:
r = c;
break;
case 1:
g = c;
break;
case 2:
b = c;
break;
case 3:
g = b = c;
break;
case 4:
r = b = c;
break;
case 5:
r = g = c;
break;
case 6:
r = g = b = c;
break;
case 7:
break;
}
return RGB16::from_8(r, g, b);
}
} else {
// black corners
return RGB16::from_8(0, 0, 0);
}
}
static void get_test_pattern_line(size_t w, size_t h, size_t row, std::span<RGB16> buf)
{
for (size_t x = 0; x < w; ++x)
buf[x] = get_test_pattern_pixel_16(w, h, x, row);
}
static void get_test_pattern_line_yuv(size_t w, size_t h, size_t row,
std::span<YUV16> buf,
const TestPatternOptions& options)
{
for (size_t x = 0; x < w; ++x)
buf[x] = get_test_pattern_pixel_16(w, h, x, row)
.to_yuv(options.rec, options.range);
}
static void get_plain_line_rgb(size_t w, const RGB16& color, std::span<RGB16> buf)
{
for (size_t x = 0; x < w; ++x)
buf[x] = color;
}
static void get_plain_line_yuv(size_t w, const YUV16& color, std::span<YUV16> buf)
{
for (size_t x = 0; x < w; ++x)
buf[x] = color;
}
static void draw_test_pattern_part(IFramebuffer& fb, size_t start_y, size_t end_y,
const TestPatternOptions& options)
{
std::optional<RGB16> solid;
if (options.pattern == "red")
solid = RGB16(0xffff, 0, 0);
else if (options.pattern == "green")
solid = RGB16(0, 0xffff, 0);
else if (options.pattern == "blue")
solid = RGB16(0, 0, 0xffff);
else if (options.pattern == "white")
solid = RGB16(0xffff, 0xffff, 0xffff);
else if (options.pattern == "black")
solid = RGB16(0, 0, 0);
std::function<void(size_t y, std::span<RGB16> span)> generate_line_rgb;
std::function<void(size_t y, std::span<YUV16> span)> generate_line_yuv;
if (solid.has_value()) {
generate_line_rgb = [&fb, rgb = solid.value()](size_t y,
std::span<RGB16> span) {
get_plain_line_rgb(fb.width(), rgb, span);
};
generate_line_yuv = [&fb, rgb = solid.value(),
&options](size_t y, std::span<YUV16> span) {
get_plain_line_yuv(fb.width(),
rgb.to_yuv(options.rec, options.range), span);
};
} else {
generate_line_rgb = [&fb](size_t y, std::span<RGB16> span) {
get_test_pattern_line(fb.width(), fb.height(), y, span);
};
generate_line_yuv = [&fb, &options](size_t y, std::span<YUV16> span) {
get_test_pattern_line_yuv(fb.width(), fb.height(), y, span,
options);
};
}
#define CASE_ARGB(x) \
case PixelFormat::x: \
ARGB_Writer<x##_Layout>::write_pattern(fb, start_y, end_y, \
generate_line_rgb); \
break;
#define CASE_YUV(x) \
case PixelFormat::x: \
YUV_Writer<x##_Layout>::write_pattern(fb, start_y, end_y, \
generate_line_yuv); \
break;
#define CASE_YUV_PACKED(x) \
case PixelFormat::x: \
YUVPackedWriter<x##_Layout>::write_pattern(fb, start_y, end_y, \
generate_line_yuv); \
break;
#define CASE_YUV_SEMI(x) \
case PixelFormat::x: \
YUVSemiPlanarWriter<x##_Layout>::write_pattern(fb, start_y, end_y, \
generate_line_yuv); \
break;
#define CASE_YUV_PLANAR(x) \
case PixelFormat::x: \
YUVPlanarWriter<x##_Layout>::write_pattern(fb, start_y, end_y, \
generate_line_yuv); \
break;
switch (fb.format()) {
CASE_YUV_SEMI(XV20);
CASE_YUV_SEMI(XV15);
CASE_YUV_SEMI(NV12);
CASE_YUV_SEMI(NV21);
CASE_YUV_SEMI(NV16);
CASE_YUV_SEMI(NV61);
CASE_ARGB(RGB565);
CASE_ARGB(BGR565);
CASE_ARGB(XRGB1555);
CASE_ARGB(ARGB1555);
CASE_ARGB(XRGB4444);
CASE_ARGB(ARGB4444);
CASE_ARGB(RGB888);
CASE_ARGB(BGR888);
CASE_ARGB(XRGB8888);
CASE_ARGB(ARGB8888);
CASE_ARGB(XBGR8888);
CASE_ARGB(ABGR8888);
CASE_ARGB(RGBX8888);
CASE_ARGB(RGBA8888);
CASE_ARGB(BGRX8888);
CASE_ARGB(BGRA8888);
CASE_ARGB(XRGB2101010);
CASE_ARGB(ARGB2101010);
CASE_ARGB(XBGR2101010);
CASE_ARGB(ABGR2101010);
CASE_ARGB(RGBX1010102);
CASE_ARGB(RGBA1010102);
CASE_ARGB(BGRX1010102);
CASE_ARGB(BGRA1010102);
CASE_YUV_PACKED(YUYV);
CASE_YUV_PACKED(YVYU);
CASE_YUV_PACKED(UYVY);
CASE_YUV_PACKED(VYUY);
CASE_YUV(XVUY2101010);
CASE_YUV_PLANAR(YUV444);
CASE_YUV_PLANAR(YVU444);
CASE_YUV_PLANAR(YUV422);
CASE_YUV_PLANAR(YVU422);
CASE_YUV_PLANAR(YUV420);
CASE_YUV_PLANAR(YVU420);
default:
break;
}
}
void draw_test_pattern_multi(IFramebuffer& fb, const TestPatternOptions& options)
{
auto& info = get_pixel_format_info(fb.format());
uint8_t v_sub = 0;
for (size_t p = 0; p < info.num_planes; ++p)
v_sub = max(v_sub, info.planes[p].vsub);
if (fb.height() % v_sub)
throw invalid_argument("FB height must be divisible with vsub");
// Create the mmaps before starting the threads
for (size_t i = 0; i < fb.num_planes(); ++i)
fb.map(i);
size_t num_threads = thread::hardware_concurrency();
size_t part_height = fb.height() / num_threads;
// round up to v_sub
part_height = (part_height + v_sub - 1) / v_sub * v_sub;
vector<thread> workers;
std::vector<std::exception_ptr> errors(num_threads);
for (size_t n = 0; n < num_threads; ++n) {
size_t start = n * part_height;
size_t end = start + part_height - 1;
if (n == num_threads - 1)
end = fb.height() - 1;
workers.push_back(thread([&fb, start, end, &options, &error = errors[n]]() {
try {
draw_test_pattern_part(fb, start, end, options);
} catch (...) {
error = std::current_exception();
}
}));
}
for (thread& t : workers)
t.join();
auto i = std::find_if(errors.begin(), errors.end(),
[](auto& e) { return e != nullptr; });
if (i != errors.end())
std::rethrow_exception(*i);
}
void draw_test_pattern_single(IFramebuffer& fb, const TestPatternOptions& options)
{
draw_test_pattern_part(fb, 0, fb.height() - 1, options);
}
void draw_test_pattern(IFramebuffer& fb, const TestPatternOptions& options)
{
#ifdef HAS_PTHREAD
draw_test_pattern_multi(fb, options);
#else
draw_test_pattern_single(fb, options);
#endif
}
} // namespace kms
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