host_api_qr.cpp

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#include "plugin_manager/host_api.h"
#include "cdc_views/QrRaster.h"
 
namespace qr = cdc::ui::qr;
 
extern "C" {
 
int host_qr_measure(const char* data, uint8_t max_version, uint8_t ecc,
                    uint16_t* out_modules) {
    if (!data || !data[0] || !out_modules) return HOST_ERR_INVALID_ARG;
    int rc = qr::measure(data, max_version, ecc, out_modules);
    if (rc == -2) return HOST_ERR_INVALID_ARG;
    return rc == 0 ? HOST_OK : HOST_ERR_GENERIC;
}
 
int host_qr_render_bitmap(const char* data, uint8_t max_version, uint8_t ecc,
                          uint8_t scale, uint8_t quiet_modules,
                          uint8_t* out, size_t out_size,
                          uint16_t* out_stride_bytes, uint16_t* out_height_px) {
    if (!data || !data[0] || !out || !out_stride_bytes || !out_height_px) {
        return HOST_ERR_INVALID_ARG;
    }
    int rc = qr::render(data, max_version, ecc, scale, quiet_modules,
                        out, out_size, out_stride_bytes, out_height_px);
    switch (rc) {
        case 0:  return HOST_OK;
        case -2: return HOST_ERR_INVALID_ARG;
        case -3: return HOST_ERR_NO_MEMORY;
        default: return HOST_ERR_GENERIC;
    }
}
 
}  // extern "C"