Method add_texture

src/render.cpp:487–518

}

void wf::render_pass_t::add_texture(const wf::texture_t& texture, const wf::render_target_t& adjusted_target,
    const wlr_fbox& geometry, const wf::region_t& damage, float alpha)
{
    if (wlr_renderer_is_gles2(this->get_wlr_renderer()))
    {
        // This is a hack to make sure that plugins can do whatever they want and we render on the correct
        // target. For example, managing auxilliary textures can mess up with the state of the pipeline on
        // GLES but not on Vulkan, so to make it easier to write plugins, we just bind the render target again
        // here to ensure that the state is correct.
        wf::gles::bind_render_buffer(adjusted_target);
    }

    wf::region_t fb_damage = adjusted_target.framebuffer_region_from_geometry_region(damage);

    wlr_render_texture_options opts{};
    opts.texture = texture.texture;
    opts.alpha   = α
    opts.blend_mode = WLR_RENDER_BLEND_MODE_PREMULTIPLIED;

    // use GL_NEAREST for integer scale.
    // GL_NEAREST makes scaled text blocky instead of blurry, which looks better
    // but only for integer scale.
    const auto preferred_filter = ((adjusted_target.scale - floor(adjusted_target.scale)) < 0.001) ?
        WLR_SCALE_FILTER_NEAREST : WLR_SCALE_FILTER_BILINEAR;
    opts.filter_mode = texture.filter_mode.value_or(preferred_filter);
    opts.transform   = wlr_output_transform_compose(wlr_output_transform_invert(texture.transform),
        adjusted_target.wl_transform);
    opts.clip    = fb_damage.to_pixman();
    opts.src_box = texture.source_box.value_or(wlr_fbox{0, 0, 0, 0});
    opts.dst_box = fbox_to_geometry(adjusted_target.framebuffer_box_from_geometry_box(geometry));
    wlr_render_pass_add_texture(get_wlr_pass(), &opts);
}

void wf::render_pass_t::add_rect(const wf::color_t& color, const wf::render_target_t& adjusted_target,
    const wlr_fbox& geometry, const wf::region_t& damage)