1 files changed, 40 insertions, 0 deletions
diff --git a/src/video_out/alphablend.h b/src/video_out/alphablend.h
index 974f363d8..dd7f799ea 100644
--- a/src/video_out/alphablend.h
+++ b/src/video_out/alphablend.h
@@ -53,10 +53,22 @@ typedef struct {         /* CLUT == Color LookUp Table */
   uint8_t foo   : 8;
 } ATTRIBUTE_PACKED clut_t;
 
+
 #if PRAGMA_PACK
 #pragma pack()
 #endif
 
+#define XX44_PALETTE_SIZE 32
+
+typedef struct {
+  unsigned size;
+  unsigned max_used;
+  uint32_t cluts[XX44_PALETTE_SIZE];
+  /* cache palette entries for both colors and clip_colors */
+  int lookup_cache[OVL_PALETTE_SIZE*2];
+} xx44_palette_t;
+
+
 void blend_rgb16 (uint8_t * img, vo_overlay_t * img_overl,
 		  int img_width, int img_height,
 		  int dst_width, int dst_height);
@@ -75,4 +87,32 @@ void blend_yuv (uint8_t *dst_base[3], vo_overlay_t * img_overl,
 void blend_yuy2 (uint8_t * dst_img, vo_overlay_t * img_overl,
                 int dst_width, int dst_height, int dst_pitch);
 
+/*
+ * This function isn't too smart about blending. We want to avoid creating new
+ * colors in the palette as a result from two non-zero colors needed to be
+ * blended. Instead we choose the color with the highest alpha value to be
+ * visible. Some parts of the code taken from the "VeXP" project.
+ */
+
+void blend_xx44 (uint8_t *dst_img, vo_overlay_t *img_overl,
+		int dst_width, int dst_height, int dst_pitch, 
+		xx44_palette_t *palette,int ia44);
+
+/*
+ * Functions to handle the xine-specific palette.
+ */
+
+void clear_xx44_palette(xx44_palette_t *p);
+void init_xx44_palette(xx44_palette_t *p, unsigned num_entries);
+void dispose_xx44_palette(xx44_palette_t *p);
+
+/*
+ * Convert the xine-specific palette to something useful.
+ */
+
+void xx44_to_xvmc_palette(const xx44_palette_t *p,unsigned char *xvmc_palette,
+			  unsigned first_xx44_entry, unsigned num_xx44_entries,
+			  unsigned num_xvmc_components, char *xvmc_components);
+
+
 #endif