Merge branch 'master' into debian/master

1 files changed, 94 insertions, 0 deletions

diff --git a/backends/visca.h b/backends/visca.h
new file mode 100644
index 0000000..37f21b1
--- /dev/null
+++ b/backends/visca.h
@@ -0,0 +1,94 @@
+#include "midimonster.h"
+
+MM_PLUGIN_API int init();
+static int ptz_configure(char* option, char* value);
+static int ptz_configure_instance(instance* inst, char* option, char* value);
+static int ptz_instance(instance* inst);
+static channel* ptz_channel(instance* inst, char* spec, uint8_t flags);
+static int ptz_set(instance* inst, size_t num, channel** c, channel_value* v);
+static int ptz_handle(size_t num, managed_fd* fds);
+static int ptz_start(size_t n, instance** inst);
+static int ptz_shutdown(size_t n, instance** inst);
+
+#define VISCA_BUFFER_LENGTH 50
+
+enum /*_ptz_relmove_channel */ {
+	rel_up = 1,
+	rel_down = 2,
+	rel_left = 4,
+	rel_right = 8,
+	rel_x = rel_up | rel_down,
+	rel_y = rel_left | rel_right
+};
+
+typedef struct /*_ptz_instance_data*/ {
+	int fd;
+	uint8_t cam_address;
+	uint16_t x;
+	uint16_t y;
+	uint8_t max_pan, max_tilt;
+	double factor_pan, factor_tilt;
+	uint8_t relative_movement;
+	double deadzone;
+	uint8_t direct_device;
+} ptz_instance_data;
+
+enum /*ptz_channels*/ {
+	//channels with a name that includes another channels as prefix
+	//go first so the channel matching logic works
+	panspeed = 0,
+	tiltspeed,
+	pan,
+	tilt,
+	zoom,
+	focus,
+	focus_mode,
+	wb_red,
+	wb_blue,
+	wb_mode,
+	call,
+	store,
+	home,
+	stop,
+	relmove,
+	sentinel
+};
+
+typedef size_t (*ptz_channel_set)(instance*, channel*, channel_value*, uint8_t* msg);
+static size_t ptz_set_pantilt(instance* inst, channel* c, channel_value* v, uint8_t* msg);
+static size_t ptz_set_ptspeed(instance* inst, channel* c, channel_value* v, uint8_t* msg);
+static size_t ptz_set_zoom(instance* inst, channel* c, channel_value* v, uint8_t* msg);
+static size_t ptz_set_focus(instance* inst, channel* c, channel_value* v, uint8_t* msg);
+static size_t ptz_set_focus_mode(instance* inst, channel* c, channel_value* v, uint8_t* msg);
+static size_t ptz_set_wb_mode(instance* inst, channel* c, channel_value* v, uint8_t* msg);
+static size_t ptz_set_wb(instance* inst, channel* c, channel_value* v, uint8_t* msg);
+static size_t ptz_set_memory(instance* inst, channel* c, channel_value* v, uint8_t* msg);
+static size_t ptz_set_memory_store(instance* inst, channel* c, channel_value* v, uint8_t* msg);
+static size_t ptz_set_relmove(instance* inst, channel* c, channel_value* v, uint8_t* msg);
+
+static struct {
+	char* name;
+	size_t bytes;
+	uint8_t pattern[VISCA_BUFFER_LENGTH];
+	size_t min; //channel range = max - min
+	size_t max;
+	size_t offset; //channel value = normalised * range - offset
+	ptz_channel_set set;
+} ptz_channels[] = {
+	[panspeed] = {"panspeed", 0, {0}, 0x01, 0x18, 0, ptz_set_ptspeed},
+	[tiltspeed] = {"tiltspeed", 0, {0}, 0x01, 0x14, 0, ptz_set_ptspeed},
+	[pan] = {"pan", 15, {0x80, 0x01, 0x06, 0x02, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF}, 0, 0x990 * 2, 0x990, ptz_set_pantilt},
+	[tilt] = {"tilt", 15, {0x80, 0x01, 0x06, 0x02, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF}, 0, 0x510 * 2, 0x510, ptz_set_pantilt},
+	[zoom] = {"zoom", 9, {0x80, 0x01, 0x04, 0x47, 0, 0, 0, 0, 0xFF}, 0, 0x4000, 0, ptz_set_zoom},
+	[focus] = {"focus", 9, {0x80, 0x01, 0x04, 0x48, 0, 0, 0, 0, 0xFF}, 0, 0x4000, 0, ptz_set_focus},
+	[focus_mode] = {"autofocus", 6, {0x80, 0x01, 0x04, 0x38, 0, 0xFF}, 0, 1, 0, ptz_set_focus_mode},
+	[wb_mode] = {"wb.auto", 6, {0x80, 0x01, 0x04, 0x35, 0, 0xFF}, 0, 1, 0, ptz_set_wb_mode},
+	[wb_red] = {"wb.red", 9, {0x80, 0x01, 0x04, 0x43, 0x00, 0x00, 0, 0, 0xFF}, 0, 255, 0, ptz_set_wb},
+	[wb_blue] = {"wb.blue", 9, {0x80, 0x01, 0x04, 0x44, 0x00, 0x00, 0, 0, 0xFF}, 0, 255, 0, ptz_set_wb},
+	[call] = {"memory", 7, {0x80, 0x01, 0x04, 0x3F, 0x02, 0, 0xFF}, 0, 254, 0, ptz_set_memory},
+	[store] = {"store", 7, {0x80, 0x01, 0x04, 0x3F, 0x01, 0, 0xFF}, 0, 254, 0, ptz_set_memory_store},
+	[home] = {"home", 5, {0x80, 0x01, 0x06, 0x04, 0xFF}, 0, 0, 0, NULL},
+	[relmove] = {"move", 9, {0x80, 0x01, 0x06, 0x01, 0, 0, 0, 0, 0xFF}, 0, 1, 0, ptz_set_relmove},
+	[stop] = {"stop", 9, {0x80, 0x01, 0x06, 0x01, 0, 0, 0x03, 0x03, 0xFF}, 0, 0, 0, ptz_set_relmove},
+	[sentinel] = {"SENTINEL"}
+};