1 files changed, 191 insertions, 0 deletions
diff --git a/modules/directfb/directfb.c b/modules/directfb/directfb.c
new file mode 100644
index 0000000..ad98e2b
--- /dev/null
+++ b/modules/directfb/directfb.c
@@ -0,0 +1,191 @@
+/**
+ * @file directfb.c  DirectFB video display module
+ *
+ * Copyright (C) 2010 Creytiv.com
+ * Copyright (C) 2013 Andreas Shimokawa <andi@fischlustig.de>
+ */
+#include <re.h>
+#include <rem.h>
+#include <baresip.h>
+#include <directfb.h>
+
+
+struct vidisp_st {
+	struct vidisp *vd;             /**< Inheritance (1st)     */
+	struct vidsz size;             /**< Current size          */
+	IDirectFBWindow *window;       /**< DirectFB Window       */
+	IDirectFBSurface *surface;     /**< Surface for pixels    */
+	IDirectFBDisplayLayer *layer;  /**< Display layer         */
+};
+
+
+static IDirectFB *dfb;
+static struct vidisp *vid;
+
+
+static void destructor(void *arg)
+{
+	struct vidisp_st *st = arg;
+
+	if (st->surface)
+		st->surface->Release(st->surface);
+	if (st->window)
+		st->window->Release(st->window);
+	if (st->layer)
+		st->layer->Release(st->layer);
+
+	mem_deref(st->vd);
+}
+
+
+static int alloc(struct vidisp_st **stp, struct vidisp *vd,
+		 struct vidisp_prm *prm, const char *dev,
+		 vidisp_resize_h *resizeh, void *arg)
+{
+	struct vidisp_st *st;
+	int err = 0;
+
+	/* Not used by DirectFB */
+	(void) prm;
+	(void) dev;
+	(void) resizeh;
+	(void) arg;
+
+	st = mem_zalloc(sizeof(*st), destructor);
+	if (!st)
+		return ENOMEM;
+
+	st->vd = mem_ref(vd);
+
+	dfb->GetDisplayLayer(dfb, DLID_PRIMARY, &st->layer);
+
+	if (err)
+		mem_deref(st);
+	else
+		*stp = st;
+
+	return err;
+}
+
+
+static int display(struct vidisp_st *st, const char *title,
+		   const struct vidframe *frame)
+{
+	void *pixels;
+	int pitch, i;
+	unsigned h;
+	uint8_t *p;
+	(void) title;
+
+	if (!vidsz_cmp(&st->size, &frame->size)) {
+		if (st->size.w && st->size.h) {
+			info("directfb: reset: %u x %u ---> %u x %u\n",
+			     st->size.w, st->size.h,
+			     frame->size.w, frame->size.h);
+		}
+
+		if (st->surface) {
+			st->surface->Release(st->surface);
+			st->surface = NULL;
+		}
+		if (st->window) {
+			st->window->Release(st->window);
+			st->window = NULL;
+		}
+	}
+
+	if (!st->window) {
+		DFBWindowDescription desc;
+
+		desc.flags = DWDESC_WIDTH|DWDESC_HEIGHT|DWDESC_PIXELFORMAT;
+		desc.width = frame->size.w;
+		desc.height = frame->size.h;
+		desc.pixelformat = DSPF_I420;
+
+		st->layer->CreateWindow(st->layer, &desc, &st->window);
+
+		st->size = frame->size;
+		st->window->SetOpacity(st->window, 0xff);
+		st->window->GetSurface(st->window, &st->surface);
+	}
+
+	st->surface->Lock(st->surface, DSLF_WRITE, &pixels, &pitch);
+
+	p = pixels;
+	for (i=0; i<3; i++) {
+
+		const uint8_t *s   = frame->data[i];
+		const unsigned stp = frame->linesize[0] / frame->linesize[i];
+		const unsigned sz  = frame->size.w / stp;
+
+		for (h = 0; h < frame->size.h; h += stp) {
+
+			memcpy(p, s, sz);
+
+			s += frame->linesize[i];
+			p += (pitch / stp);
+		}
+	}
+
+	st->surface->Unlock(st->surface);
+
+	/* Update the screen! */
+	st->surface->Flip(st->surface, 0, 0);
+
+	return 0;
+}
+
+
+static void hide(struct vidisp_st *st)
+{
+	if (!st || !st->window)
+		return;
+
+	st->window->SetOpacity(st->window, 0x00);
+}
+
+
+static int module_init(void)
+{
+	int err = 0;
+	DFBResult ret;
+
+	ret = DirectFBInit(NULL, NULL);
+	if (ret) {
+		DirectFBError("DirectFBInit() failed", ret);
+		return (int) ret;
+	}
+
+	ret = DirectFBCreate(&dfb);
+	if (ret) {
+		DirectFBError("DirectFBCreate() failed", ret);
+		return (int) ret;
+	}
+
+	err = vidisp_register(&vid, "directfb", alloc, NULL, display, hide);
+	if (err)
+		return err;
+
+	return 0;
+}
+
+
+static int module_close(void)
+{
+	vid = mem_deref(vid);
+
+	if (dfb) {
+		dfb->Release(dfb);
+		dfb = NULL;
+	}
+
+	return 0;
+}
+
+
+EXPORT_SYM const struct mod_export DECL_EXPORTS(directfb) = {
+	"directfb",
+	"vidisp",
+	module_init,
+	module_close
+};