X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=input_state.h;fp=input_state.h;h=26015ef569b85d61f95af40e21c17a4a537d7423;hb=196392c483a9cbf7fd7b572d9242aa283031453f;hp=0000000000000000000000000000000000000000;hpb=6ebc7f7bd501d1115bf164ce3e1c22db326798c2;p=nageru

diff --git a/input_state.h b/input_state.h
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--- /dev/null
+++ b/input_state.h
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+#ifndef _INPUT_STATE_H
+#define _INPUT_STATE_H 1
+
+#include "defs.h"
+#include "ref_counted_frame.h"
+
+struct BufferedFrame {
+	RefCountedFrame frame;
+	unsigned field_number;
+};
+
+// Encapsulates the state of all inputs at any given instant.
+// In particular, this is captured by Theme::get_chain(),
+// so that it can hold on to all the frames it needs for rendering.
+struct InputState {
+	// For each card, the last three frames (or fields), with 0 being the
+	// most recent one. Note that we only need the actual history if we have
+	// interlaced output (for deinterlacing), so if we detect progressive input,
+	// we immediately clear out all history and all entries will point to the same
+	// frame.
+	BufferedFrame buffered_frames[MAX_CARDS][FRAME_HISTORY_LENGTH];
+};
+
+#endif  // !defined(_INPUT_STATE_H)