1 files changed, 98 insertions, 0 deletions
diff --git a/Source/DirectFB/gfxdrivers/unichrome/uc_overlay.h b/Source/DirectFB/gfxdrivers/unichrome/uc_overlay.h
new file mode 100755
index 0000000..123a5e0
--- /dev/null
+++ b/Source/DirectFB/gfxdrivers/unichrome/uc_overlay.h
@@ -0,0 +1,98 @@
+#ifndef __UC_OVERLAY_H__
+#define __UC_OVERLAY_H__
+
+#define UC_OVL_CAPS (DLCAPS_SURFACE | DLCAPS_OPACITY | DLCAPS_SCREEN_LOCATION \
+    | DLCAPS_DEINTERLACING | DLCAPS_DST_COLORKEY | DLCAPS_LEVELS \
+    | DLCAPS_FIELD_PARITY )
+/*    | DLCAPS_BRIGHTNESS | DLCAPS_CONTRAST              \
+    | DLCAPS_SATURATION | DLCAPS_HUE)
+    */
+#define UC_OVL_OPTIONS (DLOP_DEINTERLACING | DLOP_DST_COLORKEY \
+    | DLOP_FIELD_PARITY | DLOP_OPACITY )
+
+#define ALIGN_TO(v, n) (((v) + (n-1)) & ~(n-1))
+#define UC_MAP_V1_FIFO_CONTROL(depth, pre_thr, thr) \
+    (((depth)-1) | ((thr) << 8) | ((pre_thr) << 24))
+
+// Actions for uc_ovl_update()
+
+#define UC_OVL_FLIP     1
+#define UC_OVL_CHANGE   2
+#define UC_OVL_FIELD    4
+
+/** Overlay layer data. */
+struct uc_ovl_vinfo {
+    bool isenabled;                 // True when visible
+    DFBRectangle win;               // Layer screen rectangle.
+    DFBDisplayLayerConfig cfg;      // Layer configuration
+    int ox, oy;                     // Top-left visible corner (the offset)
+                                    // in the source surface
+    u8 opacity;                     // Layer opacity
+    int level;                      // Position in the DirectFB layer stack
+                                    // < 0 = underlay mode, > 0 = overlay mode
+    DFBColorAdjustment adj;         // Color adjustment (brightness etc)
+    DFBColorKey dst_key;            // Destination color key
+    bool dstkey_enabled;            // Destination color key is enabled
+};
+
+typedef struct _UcOverlayData {
+
+    // TODO: initialize the variables!!!
+
+    u8                  hwrev;       // Unichrome revision
+    int                 scrwidth;    // Current screen width
+
+    bool                extfifo_on;  // True when we're using the extended fifo.
+    u8                  mclk_save[3];
+
+    struct uc_ovl_vinfo v1;          // Video overlay V1
+
+    CoreLayerRegionConfig config;
+    
+    bool                deinterlace;
+    int                 field;
+
+    CoreSurface        *surface;
+    CoreSurfaceBufferLock *lock;
+    
+    int                 opacity_primary; // overlay opacity if primary is logically
+                                         // above or -1 if primary has alpha channel
+
+} UcOverlayData;
+
+
+// Video engine - mapping functions (uc_ovl_hwmap.c)
+
+bool uc_ovl_map_vzoom(int sh, int dh, u32* zoom, u32* mini);
+bool uc_ovl_map_hzoom(int sw, int dw,  u32* zoom, u32* mini,
+                      u32* falign, u32* dcount);
+u32 uc_ovl_map_qwfetch(int falign, DFBSurfacePixelFormat format, int pfetch);
+u32 uc_ovl_map_format(DFBSurfacePixelFormat format);
+void uc_ovl_map_window(int scrw, int scrh, DFBRectangle* win, int sw, int sh,
+                       u32* win_start, u32* win_end,
+                       int* ox, int* oy, int *pfetch);
+void uc_ovl_map_buffer(DFBSurfacePixelFormat format, u32 buf,
+                       int x, int y, int w, int h, int pitch, int field,
+                       u32* y_start, u32* u_start, u32* v_start);
+u32 uc_ovl_map_alpha(int opacity);
+void uc_ovl_map_v1_control(DFBSurfacePixelFormat format, int sw,
+                           int hwrev, bool extfifo_on,
+                           u32* control, u32* fifo);
+u32 uc_ovl_map_fifo(u8 depth, u8 pre_thr, u8 thr);
+void uc_ovl_map_adjustment(DFBColorAdjustment* adj, u32* a1, u32* a2);
+u32 uc_ovl_map_colorkey(DFBColorKey* c);
+
+// Video engine - setting functions (uc_ovl_hwset.c)
+
+void uc_ovl_setup_fifo(UcOverlayData* ucovl, int scrwidth);
+void uc_ovl_vcmd_wait(volatile u8* vio);
+DFBResult uc_ovl_update(UcDriverData* ucdrv,
+                        UcOverlayData* ucovl, int action,
+                        CoreSurface* surface,
+                        CoreSurfaceBufferLock* lock);
+DFBResult uc_ovl_set_adjustment(CoreLayer *layer,
+                                void *driver_data,
+                                void *layer_data,
+                                DFBColorAdjustment *adj);
+
+#endif // __UC_OVERLAY_H__