Merge "Work around CTS failure in eglCreateImageKHR." into pi-dev

    ContextRef _c(dp.get(), ctx);

    egl_context_t * const c = _c.get();

    // Temporary hack: eglImageCreateKHR should accept EGL_GL_COLORSPACE_LINEAR_KHR,

    // EGL_GL_COLORSPACE_SRGB_KHR and EGL_GL_COLORSPACE_DEFAULT_EXT if

    // EGL_EXT_image_gl_colorspace is supported, but some drivers don't like

    // the DEFAULT value and generate an error.

    std::vector<EGLint> strippedAttribList;

    for (const EGLint *attr = attrib_list; attr && attr[0] != EGL_NONE; attr += 2) {

        if (attr[0] == EGL_GL_COLORSPACE_KHR &&

            dp->haveExtension("EGL_EXT_image_gl_colorspace")) {

            if (attr[1] != EGL_GL_COLORSPACE_LINEAR_KHR &&

                attr[1] != EGL_GL_COLORSPACE_SRGB_KHR) {

                continue;

            }

        }

        strippedAttribList.push_back(attr[0]);

        strippedAttribList.push_back(attr[1]);

    }

    strippedAttribList.push_back(EGL_NONE);

    EGLImageKHR result = EGL_NO_IMAGE_KHR;

    egl_connection_t* const cnx = &gEGLImpl;

    if (cnx->dso && cnx->egl.eglCreateImageKHR) {

        result = cnx->egl.eglCreateImageKHR(

                dp->disp.dpy,

                c ? c->context : EGL_NO_CONTEXT,

                target, buffer, attrib_list);

                target, buffer, strippedAttribList.data());

    }

    return result;

}