#define TEST_WIDTH  160
#define TEST_HEIGHT 224

// create image and load external data
imgSrc = vgCreateImage(imgGirlAlphaFormat, TEST_WIDTH, TEST_HEIGHT, VG_IMAGE_QUALITY_NONANTIALIASED);
vgImageSubData(imgSrc, (const void *)imgGirlAlphaData, imgGirlAlphaDataStride, imgGirlAlphaFormat, 0, 0, imgGirlAlphaWidth, imgGirlAlphaHeight);

imgChildren[0] = vgChildImage(imgSrc, 0, 0, TEST_WIDTH / 2, TEST_HEIGHT / 2);
imgChildren[1] = vgChildImage(imgSrc, TEST_WIDTH / 2, 0, TEST_WIDTH / 2, TEST_HEIGHT / 2);
imgChildren[2] = vgChildImage(imgSrc, 0, TEST_HEIGHT / 2, TEST_WIDTH / 2, TEST_HEIGHT / 2);
imgChildren[3] = vgChildImage(imgSrc, TEST_WIDTH / 2, TEST_HEIGHT / 2, TEST_WIDTH / 2, TEST_HEIGHT / 2);

vgSeti(VG_SCISSORING, VG_FALSE);
vgSeti(VG_MASKING, VG_FALSE);

col[0] = 0.1f; col[1] = 0.3f; col[2] = 0.7f; col[3] = 1.0f;
vgSetfv(VG_CLEAR_COLOR, 4, col);
vgClear(0, 0, 256, 256);

vgSeti(VG_BLEND_MODE, VG_BLEND_SRC_OVER);
vgSeti(VG_IMAGE_MODE, VG_DRAW_IMAGE_NORMAL);
vgSeti(VG_MATRIX_MODE, VG_MATRIX_IMAGE_USER_TO_SURFACE);

border = 10.0f;

vgLoadIdentity();
vgTranslate(50.0f, 10.0f);
vgDrawImage(imgChildren[0]);

vgLoadIdentity();
vgTranslate(50.0f + TEST_WIDTH / 2 + border, 10.0f);
vgDrawImage(imgChildren[1]);

vgLoadIdentity();
vgTranslate(50.0f, 10.0f + TEST_HEIGHT / 2 + border);
vgDrawImage(imgChildren[2]);

vgLoadIdentity();
vgTranslate(50.0f + TEST_WIDTH / 2 + border, 10.0f + TEST_HEIGHT / 2 + border);
vgDrawImage(imgChildren[3]);

saveDrawingSurface(f, "image_children_npot.png", "Test non power of two child images.", 0, 0, 256, 256);
eglSwapBuffers(display, surface);


// destroy images
vgDestroyImage(imgChildren[0]);
vgDestroyImage(imgChildren[1]);
vgDestroyImage(imgChildren[2]);
vgDestroyImage(imgChildren[3]);
vgDestroyImage(imgSrc);

#undef TEST_WIDTH
#undef TEST_HEIGHT