+int vk_create_pipeln(void);
+void vk_free_pipeln(int pp);
+void vk_pipeln_rpass(int pp, VkRenderPass rp);
+void vk_pipeln_viewport(int pp, int x, int y, int width, int height);
+void vk_pipeln_scissor(int pp, int x, int y, int width, int height);
+void vk_pipeln_shader(int pp, int type, VkShaderModule sdr);
+/* TODO: vertex input */
+void vk_pipeln_prim(int pp, int prim);
+void vk_pipeln_polymode(int pp, int mode);
+void vk_pipeln_cull(int pp, int cull);
+void vk_pipeln_frontface(int pp, int ff);
+void vk_pipeln_linewidth(int pp, int w);
+void vk_pipeln_multisample(int pp, int nsamples);
+void vk_pipeln_colormask(int pp, int r, int g, int b, int a);
+void vk_pipeln_depthmask(int pp, int z);
+void vk_pipeln_stencilmask(int pp, int s);
+void vk_pipeln_zbuffer(int pp, int enable);
+void vk_pipeln_zbuffer_op(int pp, int op);
+void vk_pipeln_stencil(int pp, int enable);
+void vk_pipeln_stencil_op(int pp, int sfail, int zfail, int zpass);
+void vk_pipeln_stencil_func(int pp, int op, unsigned int ref, unsigned int mask);
+void vk_pipeln_blend(int pp, int enable);
+void vk_pipeln_blendfunc(int pp, int src, int dst);
+VkPipeline vk_pipeln(int pp);
+
+VkShaderModule vk_load_shader(const char *fname);
+void vk_free_shader(VkShaderModule sdr);
+
+VkSemaphore vk_create_sem(void);
+void vk_free_sem(VkSemaphore sem);