void image_destroy(struct vg_image *img)
{
struct vg_context *ctx = vg_current_context();
vg_context_remove_object(ctx, VG_OBJECT_IMAGE, img);
if (img->parent) {
/* remove img from the parent child array */
int idx;
struct vg_image **array =
(struct vg_image **)img->parent->children_array->data;
for (idx = 0; idx < img->parent->children_array->num_elements; ++idx) {
struct vg_image *child = array[idx];
if (child == img) {
break;
}
}
debug_assert(idx < img->parent->children_array->num_elements);
array_remove_element(img->parent->children_array, idx);
}
if (img->children_array && img->children_array->num_elements) {
/* reparent the children */
VGint i;
struct vg_image *parent = img->parent;
struct vg_image **children =
(struct vg_image **)img->children_array->data;
if (!parent) {
VGint min_x = children[0]->x;
parent = children[0];
for (i = 1; i < img->children_array->num_elements; ++i) {
struct vg_image *child = children[i];
if (child->x < min_x) {
parent = child;
}
}
}
for (i = 0; i < img->children_array->num_elements; ++i) {
struct vg_image *child = children[i];
if (child != parent) {
child->parent = parent;
if (!parent->children_array) {
parent->children_array = array_create(
sizeof(struct vg_image*));
}
array_append_data(parent->children_array,
&child, 1);
} else
child->parent = NULL;
}
array_destroy(img->children_array);
}
pipe_texture_reference(&img->texture, NULL);
free(img);
}
struct vg_image * image_child_image(struct vg_image *parent,
VGint x, VGint y,
VGint width, VGint height)
{
struct vg_context *ctx = vg_current_context();
struct vg_image *image = CALLOC_STRUCT(vg_image);
vg_init_object(&image->base, ctx, VG_OBJECT_IMAGE);
image->x = parent->x + x;
image->y = parent->y + y;
image->width = width;
image->height = height;
image->parent = parent;
image->sampler_view = NULL;
pipe_sampler_view_reference(&image->sampler_view,
parent->sampler_view);
image->sampler.wrap_s = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
image->sampler.wrap_t = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
image->sampler.wrap_r = PIPE_TEX_WRAP_CLAMP_TO_EDGE;
image->sampler.min_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
image->sampler.mag_img_filter = PIPE_TEX_MIPFILTER_NEAREST;
image->sampler.normalized_coords = 1;
if (!parent->children_array)
parent->children_array = array_create(
sizeof(struct vg_image*));
array_append_data(parent->children_array,
&image, 1);
vg_context_add_object(ctx, &image->base);
return image;
}
