Add support for 12-bit color mode on framebuffer devices.

Patch Janusz Krzysztofik, jkrzyszt A tis icnet pl 


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@31139 b3059339-0415-0410-9bf9-f77b7e298cf2

5 files changed, 74 insertions, 1 deletions

diff --git a/libvo/osd.c b/libvo/osd.c
index a3664dadb3..54854c785f 100644
--- a/libvo/osd.c
+++ b/libvo/osd.c
@@ -329,6 +329,39 @@ void vo_draw_alpha_init(void){
 	}
 }
 
+void vo_draw_alpha_rgb12(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]){
+#ifdef FAST_OSD
+#ifdef FAST_OSD_TABLE
+                dst[x] = fast_osd_12bpp_table[src[x]];
+#else
+                register unsigned int a = src[x] >> 4;
+                dst[x] = (a << 8) | (a << 4) | a;
+#endif
+#else
+                unsigned char r = dst[x] & 0x0F;
+                unsigned char g = (dst[x] >> 4) & 0x0F;
+                unsigned char b = (dst[x] >> 8) & 0x0F;
+                r = (((r*srca[x]) >> 4) + src[x]) >> 4;
+                g = (((g*srca[x]) >> 4) + src[x]) >> 4;
+                b = (((b*srca[x]) >> 4) + src[x]) >> 4;
+                dst[x] = (b << 8) | (g << 4) | r;
+#endif
+            }
+        }
+        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++){
diff --git a/libvo/osd.h b/libvo/osd.h
index 7773149b79..4d79e854c8 100644
--- a/libvo/osd.h
+++ b/libvo/osd.h
@@ -29,6 +29,8 @@ void vo_draw_alpha_yuy2(int w,  int h, unsigned char* src, unsigned char *srca,
 void vo_draw_alpha_uyvy(int w,  int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase, int dststride);
 void vo_draw_alpha_rgb24(int w, int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase, int dststride);
 void vo_draw_alpha_rgb32(int w, int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase, int dststride);
+void vo_draw_alpha_rgb12(int w, int h, unsigned char* src, unsigned char *srca,
+                         int srcstride, unsigned char* dstbase, int dststride);
 void vo_draw_alpha_rgb15(int w, int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase, int dststride);
 void vo_draw_alpha_rgb16(int w, int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase, int dststride);
 
diff --git a/libvo/vo_directfb2.c b/libvo/vo_directfb2.c
index 20c4045198..2d8ec11f79 100644
--- a/libvo/vo_directfb2.c
+++ b/libvo/vo_directfb2.c
@@ -318,9 +318,13 @@ static DFBSurfacePixelFormat convformat(uint32_t format)
 #if DIRECTFBVERSION > DFB_VERSION(0,9,15)
             case IMGFMT_RGB15: return  DSPF_ARGB1555; break;
             case IMGFMT_BGR15: return  DSPF_ARGB1555; break;
+            case IMGFMT_RGB12: return  DSPF_ARGB4444; break;
+            case IMGFMT_BGR12: return  DSPF_ARGB4444; break;
 #else
             case IMGFMT_RGB15: return  DSPF_RGB15; break;
             case IMGFMT_BGR15: return  DSPF_RGB15; break;
+            case IMGFMT_RGB12: return  DSPF_RGB12; break;
+            case IMGFMT_BGR12: return  DSPF_RGB12; break;
 #endif
             case IMGFMT_YUY2:  return  DSPF_YUY2; break;
             case IMGFMT_UYVY:  return  DSPF_UYVY; break;
@@ -541,6 +545,8 @@ static int config(uint32_t s_width, uint32_t s_height, uint32_t d_width,
     		    case IMGFMT_BGR16:
             	    case IMGFMT_RGB15:
 	    	    case IMGFMT_BGR15:
+                    case IMGFMT_RGB12:
+                    case IMGFMT_BGR12:
 					params.bpp=16;
 					break;
 		    default:		params.bpp=0;
@@ -665,8 +671,10 @@ static int config(uint32_t s_width, uint32_t s_height, uint32_t d_width,
 	            case DSPF_RGB16: bpp=16;break;
 #if DIRECTFBVERSION > DFB_VERSION(0,9,15)
     		    case DSPF_ARGB1555: bpp=15;break;
+                    case DSPF_ARGB4444: bpp=12; break;
 #else
         	    case DSPF_RGB15: bpp=15;break;
+                    case DSPF_RGB12: bpp=12; break;
 #endif
 		    case DSPF_RGB332 : bpp=8;break;
 		}
@@ -678,8 +686,10 @@ static int config(uint32_t s_width, uint32_t s_height, uint32_t d_width,
 	            case DSPF_RGB16:
 #if DIRECTFBVERSION > DFB_VERSION(0,9,15)
     		    case DSPF_ARGB1555:
+                    case DSPF_ARGB4444:
 #else
         	    case DSPF_RGB15:
+                    case DSPF_RGB12:
 #endif
 		    case DSPF_RGB332:
 				    mp_msg(MSGT_VO, MSGL_V,"DirectFB: Trying to recover via videomode change (VM).\n");
@@ -1487,6 +1497,15 @@ static void draw_alpha(int x0, int y0, int w, int h, unsigned char *src,
 #endif
                         vo_draw_alpha_rgb15(w,h,src,srca,stride,((uint8_t *) dst)+pitch*y0 + 2*x0,pitch);
                         break;
+#if DIRECTFBVERSION > DFB_VERSION(0,9,15)
+                case DSPF_ARGB4444:
+#else
+                case DSPF_RGB12:
+#endif
+                    vo_draw_alpha_rgb12(w, h, src, srca, stride,
+                                        ((uint8_t *) dst) + pitch * y0 + 2 * x0,
+                                        pitch);
+                    break;
 
 		case DSPF_YUY2:
     			vo_draw_alpha_yuy2(w,h,src,srca,stride,((uint8_t *) dst) + pitch*y0 + 2*x0,pitch);
diff --git a/libvo/vo_fbdev.c b/libvo/vo_fbdev.c
index c1d2051725..cfa7f522bc 100644
--- a/libvo/vo_fbdev.c
+++ b/libvo/vo_fbdev.c
@@ -521,6 +521,13 @@ static void set_bpp(struct fb_var_screeninfo *p, int bpp)
         p->green.offset = 5;
         p->blue.length  = 5;
         break;
+    case 12:
+        p->red.offset   = 8;
+        p->green.length = 4;
+        p->red.length   = 4;
+        p->green.offset = 4;
+        p->blue.length  = 4;
+        break;
     }
 }
 
@@ -700,7 +707,8 @@ static int fb_preinit(int reset)
     }
 
     if (vo_dbpp) {
-        if (vo_dbpp != 15 && vo_dbpp != 16 && vo_dbpp != 24 && vo_dbpp != 32) {
+        if (vo_dbpp != 12 && vo_dbpp != 15 && vo_dbpp != 16
+                          && vo_dbpp != 24 && vo_dbpp != 32) {
             mp_msg(MSGT_VO, MSGL_ERR, "can't switch to %d bpp\n", vo_dbpp);
             goto err_out;
         }
@@ -850,6 +858,9 @@ static int config(uint32_t width, uint32_t height, uint32_t d_width,
     case 15:
         draw_alpha_p = vo_draw_alpha_rgb15;
         break;
+    case 12:
+        draw_alpha_p = vo_draw_alpha_rgb12;
+        break;
     default:
         return 1;
     }
diff --git a/libvo/vo_fbdev2.c b/libvo/vo_fbdev2.c
index 0e8f3743cd..9c32736a35 100644
--- a/libvo/vo_fbdev2.c
+++ b/libvo/vo_fbdev2.c
@@ -77,6 +77,13 @@ static void set_bpp(struct fb_var_screeninfo *p, int bpp)
 			p->green.offset = 5;
 			p->blue.length = 5;
 			break;
+		case 12:
+			p->red.offset   = 8;
+			p->green.length = 4;
+			p->red.length   = 4;
+			p->green.offset = 4;
+			p->blue.length  = 4;
+			break;
 	}
 }
 
@@ -247,6 +254,7 @@ static int config(uint32_t width, uint32_t height, uint32_t d_width,
 		case 24: draw_alpha_p = vo_draw_alpha_rgb24; break;
 		case 16: draw_alpha_p = vo_draw_alpha_rgb16; break;
 		case 15: draw_alpha_p = vo_draw_alpha_rgb15; break;
+		case 12: draw_alpha_p = vo_draw_alpha_rgb12; break;
 		default: return 1;
 	}