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Code Issues 142 Wiki Activity

Script screens: led_post and resize of the Lua screens on the gpu

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This commit is contained in:
Hirek
2026-11-10 16:22:35 +01:00
parent c4924f756d
commit e433b43fef
20 changed files with 971 additions and 34 deletions
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39
scripting/scriptscreenkernels.cpp
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@@ -14,6 +14,7 @@ http://mozilla.org/MPL/2.0/.
#include <array>
#include <cmath>
#include <numbers>
#include <utility>
#include <vector>
namespace script_screens
@@ -239,4 +240,42 @@ bool resize_lanczos(std::span<std::uint8_t const> const Source, int const Width,
return true;
}
int width_after(post_step const &Step, int const Width)
{
return Step.type == post_step::kind::led ? Width * 2 + 2 : Step.width;
}
int height_after(post_step const &Step, int const Height)
{
return Step.type == post_step::kind::led ? Height * 2 + 2 : Step.height;
}
bool apply_post(post_image &Image, std::span<post_step const> const Steps)
{
if (Steps.empty())
{
return true;
}
auto result{Image};
for (auto const &step : Steps)
{
auto const width{width_after(step, result.width)};
auto const height{height_after(step, result.height)};
if (width <= 0 || height <= 0)
{
return false;
}
std::vector<std::uint8_t> pixels(image_size(width, height));
auto const done{step.type == post_step::kind::led ? led_post(result.pixels, result.width, result.height, pixels, step.bloom)
: resize_lanczos(result.pixels, result.width, result.height, pixels, width, height)};
if (false == done)
{
return false;
}
result = post_image{std::move(pixels), width, height};
}
Image = std::move(result);
return true;
}
} // namespace script_screens