Function ktxTexture_CreateFromStream

lib/texture.c:317–358

* @memberof ktxTexture * @~English * @brief Create a ktx1 or ktx2 texture according to the stream * data. * * See @ref ktxTexture1::ktxTexture1_CreateFromStream * "ktxTexture1_CreateFromStream" or * @ref ktxTexture2::ktxTexture2_CreateFromStream * "ktxTexture2_CreateFromStream" for details. */

 * "ktxTexture2_CreateFromStream" for details.
 */
KTX_error_code
ktxTexture_CreateFromStream(ktxStream* pStream,
                            ktxTextureCreateFlags createFlags,
                            ktxTexture** newTex)
{
    ktxHeaderUnion_ header;
    ktxFileType_ fileType;
    KTX_error_code result;
    ktxTexture* tex;

    result = ktxDetermineFileType_(pStream, &fileType, &header);
    if (result != KTX_SUCCESS)
        return result;

    if (fileType == KTX1) {
        ktxTexture1* tex1 = (ktxTexture1*)malloc(sizeof(ktxTexture1));
        if (tex1 == NULL)
            return KTX_OUT_OF_MEMORY;
        memset(tex1, 0, sizeof(ktxTexture1));
        result = ktxTexture1_constructFromStreamAndHeader(tex1, pStream,
                                                          &header.ktx,
                                                          createFlags);
        tex = ktxTexture(tex1);
    } else {
        ktxTexture2* tex2 = (ktxTexture2*)malloc(sizeof(ktxTexture2));
        if (tex2 == NULL)
            return KTX_OUT_OF_MEMORY;
        memset(tex2, 0, sizeof(ktxTexture2));
        result = ktxTexture2_constructFromStreamAndHeader(tex2, pStream,
                                                          &header.ktx2,
                                                          createFlags);
        tex = ktxTexture(tex2);
    }

    if (result == KTX_SUCCESS)
        *newTex = (ktxTexture*)tex;
    else {
        free(tex);
        *newTex = NULL;
    }
    return result;
}

/**
 * @memberof ktxTexture