1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
#undef NDEBUG
#include "atlas.hpp"
#include "../anim/serialize.hpp"
#include <cassert>
#include <filesystem>
#include <opencv2/imgcodecs.hpp>
void anim_atlas_row::add_entry(const anim_atlas_entry& x) noexcept
{
auto& frame = *x.frame;
const auto& mat = x.mat;
frame.offset = {xpos, ypos};
frame.size = {mat.cols, mat.rows};
assert(mat.rows > 0 && mat.cols > 0);
data.push_back(x);
xpos += mat.cols;
max_height = std::max(mat.rows, max_height);
}
void anim_atlas::advance_row() noexcept
{
auto& row = rows.back();
if (row.data.empty())
return;
assert(row.xpos); assert(row.max_height);
ypos += row.max_height;
maxx = std::max(row.xpos, maxx);
rows.push_back({{}, 0, 0, ypos});
}
Magnum::Vector2i anim_atlas::offset() const noexcept
{
const auto& row = rows.back();
return {row.xpos, row.ypos};
}
Magnum::Vector2i anim_atlas::size() const noexcept
{
const anim_atlas_row& row = rows.back();
// prevent accidentally writing out of bounds by forgetting to call
// anim_atlas::advance_row() one last time prior to anim_atlas::size()
return {std::max(maxx, row.xpos), ypos + row.max_height};
}
bool anim_atlas::dump(const std::filesystem::path& filename) const noexcept
{
auto sz = size();
cv::Mat4b mat(sz[1], sz[0]);
mat.setTo(0);
for (const anim_atlas_row& row : rows)
for (const anim_atlas_entry& x : row.data)
{
auto offset = x.frame->offset, size = x.frame->size;
cv::Rect roi = {offset[0], offset[1], size[0], size[1]};
x.mat.copyTo(mat(roi));
}
return cv::imwrite(filename.string(), mat);
}
|
