Function imageAllocate

lib/astc_codec.cpp:537–577

#if KTX_FEATURE_WRITE
static astcenc_image*
imageAllocate(uint32_t bitness,
              uint32_t dim_x, uint32_t dim_y, uint32_t dim_z) {
    astcenc_image *img = new astcenc_image;
    assert(img);

    img->dim_x         = dim_x;
    img->dim_y         = dim_y;
    img->dim_z         = dim_z;

    if (bitness == 8) {
        void **data    = new void *[dim_z];
        img->data_type = ASTCENC_TYPE_U8;
        img->data      = data;

        for (uint32_t z = 0; z < dim_z; z++) {
            data[z] = new uint8_t[dim_x * dim_y * 4];
        }
    }
    else if (bitness == 16) {
        void **data    = new void *[dim_z];
        img->data_type = ASTCENC_TYPE_F16;
        img->data      = data;

        for (uint32_t z = 0; z < dim_z; z++) {
            data[z] = new uint16_t[dim_x * dim_y * 4];
        }
    }
    else {       // if (bitness == 32)
        assert(bitness == 32);
        void **data    = new void *[dim_z];
        img->data_type = ASTCENC_TYPE_F32;
        img->data      = data;

        for (uint32_t z = 0; z < dim_z; z++) {
            data[z] = new float[dim_x * dim_y * 4];
        }
    }

    return img;
}

static void
imageFree(astcenc_image *img) {