From 2f46205ad3ecbd60fa17823290e3c4f91c8b407e Mon Sep 17 00:00:00 2001
From: arpi_esp <arpi_esp@b3059339-0415-0410-9bf9-f77b7e298cf2>
Date: Tue, 10 Apr 2001 02:29:38 +0000
Subject: OSD alpha renderers moved to osd.c

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@327 b3059339-0415-0410-9bf9-f77b7e298cf2
---
 libvo/osd_template.c | 115 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 115 insertions(+)
 create mode 100644 libvo/osd_template.c

(limited to 'libvo/osd_template.c')

diff --git a/libvo/osd_template.c b/libvo/osd_template.c
new file mode 100644
index 0000000000..b767f88f18
--- /dev/null
+++ b/libvo/osd_template.c
@@ -0,0 +1,115 @@
+// Generic alpha renderers for all YUV modes and RGB depths.
+// These are "reference implementations", should be optimized later (MMX, etc)
+
+void vo_draw_alpha_yv12(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){
+    int y;
+    for(y=0;y<h;y++){
+        register int x;
+        for(x=0;x<w;x++){
+            if(srca[x]) dstbase[x]=((dstbase[x]*srca[x])>>8)+src[x];
+        }
+        src+=srcstride;
+        srca+=srcstride;
+        dstbase+=dststride;
+    }
+    return;
+}
+
+void vo_draw_alpha_yuy2(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){
+    int y;
+    for(y=0;y<h;y++){
+        register int x;
+        for(x=0;x<w;x++){
+            if(srca[x]) dstbase[2*x]=((dstbase[2*x]*srca[x])>>8)+src[x];
+        }
+        src+=srcstride;
+        srca+=srcstride;
+        dstbase+=dststride;
+    }
+    return;
+}
+
+void vo_draw_alpha_rgb24(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){
+    int y;
+    for(y=0;y<h;y++){
+        register unsigned char *dst = dstbase;
+        register int x;
+        for(x=0;x<w;x++){
+            if(srca[x]){
+		dst[0]=((dst[0]*srca[x])>>8)+src[x];
+		dst[1]=((dst[1]*srca[x])>>8)+src[x];
+		dst[2]=((dst[2]*srca[x])>>8)+src[x];
+            }
+            dst+=3; // 24bpp
+        }
+        src+=srcstride;
+        srca+=srcstride;
+        dstbase+=dststride;
+    }
+    return;
+}
+
+void vo_draw_alpha_rgb32(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){
+    int y;
+    for(y=0;y<h;y++){
+        register int x;
+        for(x=0;x<w;x++){
+            if(srca[x]){
+		dstbase[4*x+0]=((dstbase[4*x+0]*srca[x])>>8)+src[x];
+		dstbase[4*x+1]=((dstbase[4*x+1]*srca[x])>>8)+src[x];
+		dstbase[4*x+2]=((dstbase[4*x+2]*srca[x])>>8)+src[x];
+            }
+        }
+        src+=srcstride;
+        srca+=srcstride;
+        dstbase+=dststride;
+    }
+    return;
+}
+
+void vo_draw_alpha_rgb15(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){
+    int y;
+    for(y=0;y<h;y++){
+        register unsigned short *dst = (unsigned short*) dstbase;
+        register int x;
+        for(x=0;x<w;x++){
+            if(srca[x]){
+                unsigned char r=dst[x]&0x1F;
+                unsigned char g=(dst[x]>>5)&0x1F;
+                unsigned char b=(dst[x]>>10)&0x1F;
+                r=(((r*srca[x])>>5)+src[x])>>3;
+                g=(((g*srca[x])>>5)+src[x])>>3;
+                b=(((b*srca[x])>>5)+src[x])>>3;
+                dst[x]=(b<<10)|(g<<5)|r;
+            }
+        }
+        src+=srcstride;
+        srca+=srcstride;
+        dstbase+=dststride;
+    }
+    return;
+}
+
+void vo_draw_alpha_rgb16(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){
+    int y;
+    for(y=0;y<h;y++){
+        register unsigned short *dst = (unsigned short*) dstbase;
+        register int x;
+        for(x=0;x<w;x++){
+            if(srca[x]){
+                unsigned char r=dst[x]&0x1F;
+                unsigned char g=(dst[x]>>5)&0x3F;
+                unsigned char b=(dst[x]>>11)&0x1F;
+                r=(((r*srca[x])>>5)+src[x])>>3;
+                g=(((g*srca[x])>>6)+src[x])>>2;
+                b=(((b*srca[x])>>5)+src[x])>>3;
+                dst[x]=(b<<11)|(g<<5)|r;
+            }
+        }
+        src+=srcstride;
+        srca+=srcstride;
+        dstbase+=dststride;
+    }
+    return;
+}
+
-- 
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