double api_val_field_numeric(value arg1,int arg2)
{
value field = val_field(arg1, arg2);
if (val_is_number(field))
return val_number(field);
if (val_is_bool(field))
return val_bool(field);
return 0;
}
DEFINE_FUNC_5(webp_encode_argb, data_buffer_value, width_value, height_value, lossless_value, quality_factor_value) {
int width = 0;
int height = 0;
float quality_factor = 100;
int lossless = 1;
int stride = 0;
uint8_t* abgr = NULL;
uint8_t* rgba = NULL;
uint8_t* output = NULL;
int output_size = 0;
int pixels_size;
int bytes_size;
buffer data_buffer;
if (val_is_int(width_value)) width = val_int(width_value);
if (val_is_int(height_value)) height = val_int(height_value);
if (val_is_bool(lossless_value)) lossless = val_bool(lossless_value);
if (val_is_float(quality_factor_value)) quality_factor = val_float(quality_factor_value);
stride = width * 4;
pixels_size = width * height;
bytes_size = pixels_size * 4;
if (!val_is_buffer(data_buffer_value)) {
val_throw(alloc_string("webp_encode_argb: Expected to be a buffer"));
return alloc_null();
}
data_buffer = val_to_buffer(data_buffer_value);
if (bytes_size != buffer_size(data_buffer)) {
val_throw(alloc_string("webp_encode_argb: Invalid buffer size"));
return alloc_null();
}
//if ()
abgr = (uint8_t *)buffer_data(data_buffer);
rgba = (uint8_t *)malloc(bytes_size);
uint8_t* _abgr = abgr;
uint8_t* _rgba = rgba;
int _pixels_size = pixels_size;
while (_pixels_size-- > 0) {
//_rgba[0] = _abgr[3];
_rgba[0] = _abgr[1];
_rgba[1] = _abgr[2];
_rgba[2] = _abgr[3];
_rgba[3] = _abgr[0];
_abgr += 4;
_rgba += 4;
}
if (lossless) {
output_size = WebPEncodeLosslessRGBA(
rgba,
//abgr,
width, height, stride,
&output
);
} else {
output_size = WebPEncodeRGBA(
rgba,
//abgr,
width, height, stride,
quality_factor,
&output
);
}
printf("output_size: (%d, %d, %d) : %d\n", width, height, stride, output_size);
buffer output_buffer = alloc_buffer_len(0);
buffer_append_sub(output_buffer, (char *)output, output_size);
buffer_set_size(output_buffer, output_size);
if (output != NULL) free(output);
if (rgba != NULL) free(rgba);
return buffer_val(output_buffer);
}
