How to apply one surface to another?

[∞]

Is there a way to create surface and apply its to another one?
Furthermore, can I transform surface when applying?

Sample code:

#include "plutovg.h"

int main(void)
{
  unsigned char data[] = { /* omission */ };
  plutovg_surface_t* surface1 = plutovg_surface_create(300, 200);
  plutovg_t* pluto = plutovg_create(surface1);
  plutovg_surface_t* surface2 = plutovg_surface_create(300, 200);

  surface2 = plutovg_surface_create_for_data(data, 300, 200, 4);
  /*
    Until here I don't have any problems.
    If I do `plutovg_surface_write_to_png(surface2, "surface2.png");`, image is OK.

    Problem is how to apply surface2 to surface1.
    There is `plutovg_set_texture_surface`, but I didn't understand can I use it to satisfy the above conditions.
  */
}

Goal is to draw surface2 to surface1:

Thanks in advance!

[Samuel Ugochukwu]

    plutovg_surface_t* surface1 = plutovg_surface_create(300, 200);
    plutovg_surface_t* surface2 = plutovg_surface_create(300, 200);

    plutovg_t* pluto = plutovg_create(surface1);
    plutovg_set_texture_surface(pluto, surface2, x, y);

    /**
    plutovg_set_operator(pluto, mode);
    plutovg_set_opacity(pluto, opacity);
    plutovg_set_matrix(pluto, matrix);
    **/

    plutovg_paint(pluto);

[∞]

Thank you for answer. Very helpful!

The code below is how I was able to implement it.
But I have a question, shall I call plutovg_save and plutovg_restore in below case?
※ Actually it works without plutovg_save and plutovg_restore
※ Also, it works without plutovg_set_operator and plutovg_set_opacity.

//plutovg_save(pluto);

texture = plutovg_set_texture(pluto, surface, plutovg_texture_type_plain);

plutovg_identity_matrix(pluto);
plutovg_rect(pluto, x, y, w, h);
plutovg_clip(pluto);

plutovg_matrix_init_identity(&matrix);

plutovg_matrix_translate(&matrix, x, y);
plutovg_matrix_scale(&matrix, w, y);
plutovg_set_operator(pluto, plutovg_operator_src);
plutovg_set_opacity(pluto, 1.0);
plutovg_set_matrix(pluto, &matrix);
plutovg_paint(pluto);

//plutovg_restore(pluto);