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Expose butteraugli distance

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Surma
2020-08-28 12:45:09 +01:00
committed by Ingvar Stepanyan
parent 44a5b4921a
commit 045cb14c54
6 changed files with 98 additions and 81 deletions
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23
codecs/jxl/dec/jxl_dec.cpp
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@@ -6,7 +6,7 @@
using namespace emscripten;
class RawImage {
public:
public:
val buffer;
int width;
int height;
@@ -24,9 +24,9 @@ uint8_t clamp(float v, float min, float max) {
return v;
}
uint8_t *result;
uint8_t* result;
RawImage decode(std::string data) {
jxl::Span<const uint8_t> compressed((uint8_t *)data.c_str(), data.length());
jxl::Span<const uint8_t> compressed((uint8_t*)data.c_str(), data.length());
jxl::DecompressParams dparams;
// jxl::ThreadPool pool;
jxl::CodecInOut io;
@@ -35,18 +35,18 @@ RawImage decode(std::string data) {
if (!DecodeFile(dparams, compressed, &io, &aux_out, NULL)) {
return RawImage(val::null(), -1, -1);
}
jxl::ImageBundle *main = &io.Main();
jxl::ImageBundle* main = &io.Main();
if (!main->HasColor()) {
return RawImage(val::null(), -1, -1);
}
const jxl::Image3F *buffer = &main->color();
const jxl::Image3F* buffer = &main->color();
int width = buffer->xsize();
int height = buffer->ysize();
result = new uint8_t[width * height * 4];
for (int y = 0; y < height; y++) {
const float *red = buffer->PlaneRow(0, y);
const float *green = buffer->PlaneRow(1, y);
const float *blue = buffer->PlaneRow(2, y);
const float* red = buffer->PlaneRow(0, y);
const float* green = buffer->PlaneRow(1, y);
const float* blue = buffer->PlaneRow(2, y);
for (int x = 0; x < width; x++) {
int pixelOffset = width * y + x;
result[pixelOffset * 4 + 0] = clamp(red[x], 0, 255);
@@ -56,11 +56,12 @@ RawImage decode(std::string data) {
}
}
return RawImage(val(typed_memory_view(width * height * 4, result)), width,
height);
return RawImage(val(typed_memory_view(width * height * 4, result)), width, height);
}
void free_result() { delete result; }
void free_result() {
delete result;
}
EMSCRIPTEN_BINDINGS(my_module) {
class_<RawImage>("RawImage")