gl_format
-st_ChooseTextureFormat_renderable(GLcontext *ctx, GLint internalFormat,
+st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat,
GLenum format, GLenum type, GLboolean renderable);
extern gl_format
-st_ChooseTextureFormat(GLcontext * ctx, GLint internalFormat,
+st_ChooseTextureFormat(struct gl_context * ctx, GLint internalFormat,
GLenum format, GLenum type);