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#include <assert.h>
#include <string.h>
#include <wlr/render/interface.h>
void wlr_render_pass_init(struct wlr_render_pass *render_pass,
const struct wlr_render_pass_impl *impl) {
assert(impl->submit && impl->add_texture && impl->add_rect);
*render_pass = (struct wlr_render_pass){
.impl = impl,
};
}
bool wlr_render_pass_submit(struct wlr_render_pass *render_pass) {
return render_pass->impl->submit(render_pass);
}
void wlr_render_pass_add_texture(struct wlr_render_pass *render_pass,
const struct wlr_render_texture_options *options) {
// make sure the texture source box does not try and sample outside of the
// texture
if (!wlr_fbox_empty(&options->src_box)) {
const struct wlr_fbox *box = &options->src_box;
assert(box->x >= 0 && box->y >= 0 &&
(uint32_t)(box->x + box->width) <= options->texture->width &&
(uint32_t)(box->y + box->height) <= options->texture->height);
}
render_pass->impl->add_texture(render_pass, options);
}
void wlr_render_pass_add_rect(struct wlr_render_pass *render_pass,
const struct wlr_render_rect_options *options) {
assert(options->box.width >= 0 && options->box.height >= 0);
render_pass->impl->add_rect(render_pass, options);
}
void wlr_render_texture_options_get_src_box(const struct wlr_render_texture_options *options,
struct wlr_fbox *box) {
*box = options->src_box;
if (wlr_fbox_empty(box)) {
*box = (struct wlr_fbox){
.width = options->texture->width,
.height = options->texture->height,
};
}
}
void wlr_render_texture_options_get_dst_box(const struct wlr_render_texture_options *options,
struct wlr_box *box) {
*box = options->dst_box;
if (wlr_box_empty(box)) {
box->width = options->texture->width;
box->height = options->texture->height;
}
}
float wlr_render_texture_options_get_alpha(const struct wlr_render_texture_options *options) {
if (options->alpha == NULL) {
return 1;
}
return *options->alpha;
}
void wlr_render_rect_options_get_box(const struct wlr_render_rect_options *options,
const struct wlr_buffer *buffer, struct wlr_box *box) {
if (wlr_box_empty(&options->box)) {
*box = (struct wlr_box){
.width = buffer->width,
.height = buffer->height,
};
return;
}
*box = options->box;
}
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