Add texture (not yet fully implemented) and fix chaning of dispose handlers

include/shimatta-opengl-texture.h

@@ -0,0 +1,45 @@
+#ifndef _SHIMATTA_OPENGL_TEXTURE_H_
+#define _SHIMATTA_OPENGL_TEXTURE_H_
+
+#include <glib.h>
+#include <glib-object.h>
+#include <epoxy/gl.h>
+
+G_BEGIN_DECLS
+
+#define SHIMATTA_TYPE_OPENGL_TEXTURE (shimatta_opengl_texture_get_type())
+
+G_DECLARE_DERIVABLE_TYPE(ShimattaOpenglTexture, shimatta_opengl_texture, SHIMATTA, OPENGL_TEXTURE, GObject);
+
+struct _ShimattaOpenglTextureClass {
+	GObjectClass super;
+	void (*use)(ShimattaOpenglTexture *texture);
+	int (*use_in_slot)(ShimattaOpenglTexture *texture, unsigned int slot);
+};
+
+void shimatta_opengl_texture_use(ShimattaOpenglTexture *texture);
+
+int shimatta_opengl_texture_use_in_slot(ShimattaOpenglTexture *texture, unsigned int slot);
+
+ShimattaOpenglTexture *shimatta_opengl_texture_new(void);
+
+void shimatta_opengl_texture_set_filter(ShimattaOpenglTexture *texture, int filter_s, int filter_t);
+
+void shimatta_opengl_texture_set_wrap(ShimattaOpenglTexture *texture, int wrap_s, int wrap_t);
+
+void shimatta_opengl_texture_set_gen_mipmap(ShimattaOpenglTexture *texture, gboolean gen_mipmap);
+
+int shimatta_opengl_texture_get_filter(ShimattaOpenglTexture *texture, int *filter_s, int *filter_t);
+
+int shimatta_opengl_texture_get_wrap(ShimattaOpenglTexture *texture, int *wrap_s, int *wrap_t);
+
+gboolean shimatta_opengl_texture_get_gen_mipmap(ShimattaOpenglTexture *texture);
+
+int shimatta_opengl_texture_set_data(ShimattaOpenglTexture *texture, unsigned int width, unsigned int height,
+                                      GLenum format, void *buffer);
+
+int shimatta_opengl_texture_set_from_image(ShimattaOpenglTexture *texture, const char *path);
+
+G_END_DECLS
+
+#endif /* _SHIMATTA_OPENGL_TEXTURE_H_ */