1 files changed, 115 insertions, 0 deletions

diff --git a/src/grail-api.c b/src/grail-api.c
new file mode 100644
index 0000000..9ceb1e7
--- /dev/null
+++ b/src/grail-api.c
@@ -0,0 +1,115 @@
+#include "grail-inserter.h"
+#include "grail-recognizer.h"
+#include <grail.h>
+#include <string.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <malloc.h>
+#include <errno.h>
+#include "evbuf.h"
+
+struct grail_impl {
+        struct touch_dev dev;
+        struct touch_engine engine;
+        struct evbuf evbuf;
+};
+
+static void tp_event(struct touch_engine *engine,
+                     const struct input_event *ev)
+{
+        struct grail *ge = engine->priv;
+        struct grail_impl *x = ge->impl;
+        evbuf_put(&x->evbuf, ev);
+}
+
+static void tp_sync(struct touch_engine *engine,
+                    const struct input_event *syn)
+{
+        struct input_event ev;
+        struct grail *ge = engine->priv;
+        struct grail_impl *x = ge->impl;
+        struct touch_frame *frame = &engine->frame;
+        grail_mask_t filtered[DIM_EV_TYPE_BYTES];
+        int nevent = 0;
+        gin_frame_begin(ge, frame);
+        gru_recognize(ge, frame);
+        gin_frame_end(ge, filtered, sizeof(filtered), frame);
+        if (!ge->event) {
+                evbuf_clear(&x->evbuf);
+                return;
+        }
+        while (!evbuf_empty(&x->evbuf)) {
+                evbuf_get(&x->evbuf, &ev);
+                if (grail_mask_get(filtered, ev.type))
+                        continue;
+                ge->event(ge, &ev);
+                nevent++;
+        }
+        if (nevent)
+                ge->event(ge, syn);
+}
+
+int grail_open(struct grail *ge, int fd)
+{
+        struct grail_impl *x;
+        int ret;
+        x = calloc(1, sizeof(*x));
+        if (!x)
+                return -ENOMEM;
+        ge->impl = x;
+        ret = gin_init(ge);
+        if (ret)
+                goto freemem;
+        ret = touch_dev_open(&x->dev, fd);
+        if (ret)
+                goto freegin;
+        ret = gru_init(ge);
+        if (ret)
+                goto freedev;
+        touch_engine_init(&x->engine, tp_event, tp_sync, ge);
+        touch_engine_attach(&x->engine, &x->dev);
+        return 0;
+ freedev:
+        touch_dev_close(&x->dev, fd);
+ freegin:
+        gin_destroy(ge);
+ freemem:
+        free(x);
+        ge->impl = 0;
+        return ret;
+}
+
+void grail_close(struct grail *ge, int fd)
+{
+        struct grail_impl *x = ge->impl;
+        void *status;
+        touch_engine_detach(&x->engine, &x->dev);
+        gru_destroy(ge);
+        touch_dev_close(&x->dev, fd);
+        gin_destroy(ge);
+        free(ge->impl);
+        ge->impl = 0;
+}
+
+int grail_idle(struct grail *ge, int fd, int ms)
+{
+        struct grail_impl *x = ge->impl;
+        return touch_dev_idle(&x->dev, fd, ms);
+}
+
+int grail_pull(struct grail *ge, int fd)
+{
+        struct grail_impl *x = ge->impl;
+        return touch_dev_pull(&x->dev, fd);
+}
+
+void grail_get_units(struct grail_coord *min, struct grail_coord *max,
+                     const struct grail *ge)
+{
+        const struct touch_dev_caps *caps = &ge->impl->dev.caps;
+        min->x = caps->info[TP_POS_X].minimum;
+        min->y = caps->info[TP_POS_Y].minimum;
+        max->x = caps->info[TP_POS_X].maximum;
+        max->y = caps->info[TP_POS_Y].maximum;
+}