Search
lxdream.org :: lxdream/src/pvr2/pvr2.c :: diff
Latest Version
lxdream 0.9.1
released Jun 29
Download Now
Navigation
News Download Mailing Lists Mercurial Issues Dreamcast Wiki FAQ Forums
tree revision 269:e41f9b1490d1
Jump to:
summary | tree | shortlog | changelog | graph | changeset

 

filename src/pvr2/pvr2.c
changeset 269:e41f9b1490d1
prev265:5daf59b7f31b
next274:4e8f1e988d80
author nkeynes
date Thu Jan 11 06:50:11 2007 +0000 (15 years ago)
permissions -rw-r--r--
last change Double hsync width (as per hw)
Add temporary debug statements on the YUV registers
Fix sync status on the back porch
file annotate diff log raw 
     1.1 --- a/src/pvr2/pvr2.c	Sat Jan 06 04:06:36 2007 +0000

     1.2 +++ b/src/pvr2/pvr2.c	Thu Jan 11 06:50:11 2007 +0000

     1.3 @@ -1,5 +1,5 @@

     1.4  /**

     1.5 - * $Id: pvr2.c,v 1.35 2007-01-06 04:06:36 nkeynes Exp $

     1.6 + * $Id: pvr2.c,v 1.36 2007-01-11 06:50:11 nkeynes Exp $

     1.7   *

     1.8   * PVR2 (Video) Core module implementation and MMIO registers.

     1.9   *

    1.10 @@ -417,7 +417,7 @@

    1.11  	break;

    1.12      case DISP_SYNCTIME:

    1.13  	pvr2_state.vsync_lines = (val >> 8) & 0x0F;

    1.14 -	pvr2_state.hsync_width_ns = ((val & 0x7F) + 1) * 1000000 / pvr2_state.dot_clock;

    1.15 +	pvr2_state.hsync_width_ns = ((val & 0x7F) + 1) * 2000000 / pvr2_state.dot_clock;

    1.16  	MMIO_WRITE( PVR2, reg, val&0xFFFFFF7F );

    1.17  	break;

    1.18      case DISP_CFG2:

    1.19 @@ -461,6 +461,12 @@

    1.20  	break;

    1.21  	/**************** Scaler registers? ****************/

    1.22      case SCALERCFG:

    1.23 +	/* KOS suggests bits as follows:

    1.24 +	 *   0: enable vertical scaling

    1.25 +	 *  10: ???

    1.26 +	 *  16: enable FSAA

    1.27 +	 */

    1.28 +	DEBUG( "Scaler config set to %08X", val );

    1.29  	MMIO_WRITE( PVR2, reg, val&0x0007FFFF );

    1.30  	break;

    1.31  

    1.32 @@ -468,6 +474,7 @@

    1.33  	MMIO_WRITE( PVR2, reg, val&0x00FFFFF8 );

    1.34  	break;

    1.35      case YUV_CFG:

    1.36 +	DEBUG( "YUV config set to %08X", val );

    1.37  	MMIO_WRITE( PVR2, reg, val&0x01013F3F );

    1.38  	break;

    1.39  

    1.40 @@ -526,14 +533,16 @@

    1.41  	    }

    1.42  	}

    1.43      } else {

    1.44 -	if( pvr2_state.line_remainder < (pvr2_state.line_time_ns - pvr2_state.back_porch_ns) &&

    1.45 -	    pvr2_state.line_count >= pvr2_state.vsync_lines ) {

    1.46 -	    result |= 0x3800; /* Display active */

    1.47 +	if( pvr2_state.line_count >= pvr2_state.vsync_lines ) {

    1.48 +	    if( pvr2_state.line_remainder < (pvr2_state.line_time_ns - pvr2_state.back_porch_ns)) {

    1.49 +		result |= 0x3800; /* Display active */

    1.50 +	    } else {

    1.51 +		result |= 0x3000;

    1.52 +	    }

    1.53  	} else {

    1.54  	    result |= 0x1000; /* Back porch */

    1.55  	}

    1.56      }

    1.57 -    

    1.58      return result;

    1.59  }

    1.60
.