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[Core/VDP] fixed Master System II extended video modes sprite parsing (fixes Mega Man 2 demo)

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EkeEke 2016-04-10 17:06:22 +02:00
parent 862e44f098
commit 6c9b42f768
6 changed files with 8 additions and 7 deletions
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1
HISTORY.txt
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@ -100,6 +100,7 @@ Genesis Plus GX 1.7.5 (xx/xx/xxxx) (Eke-Eke)
* fixed alpha channel for 15-bit (RGB555) and 32-bit (RGB888) color support
* fixed register #10 state on VDP¨reset (fixes GG Terminator 2: Judgment Day)
* fixed Mode 1 rendering (TMS99xx "text" mode)
* fixed Master System II extended video modes sprite parsing (fixes Mega Man 2 demo)
* fixed Game Gear display rendering regression when left/right borders were disabled
* fixed 68k cycles delay on invalid VRAM writes (fixes "Microcosm" intro loop)
* optimized tile caching

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builds/genesis_plus_gx_libretro.dll
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builds/genplus_cube.dol
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10
core/vdp_render.c
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@ -1,11 +1,11 @@
/***************************************************************************************
* Genesis Plus
* Video Display Processor (video output rendering)
* Video Display Processor (pixel output rendering)
*
* Support for all TMS99xx modes, Mode 4 & Mode 5 rendering
*
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
* Copyright (C) 2007-2015 Eke-Eke (Genesis Plus GX)
* Copyright (C) 2007-2016 Eke-Eke (Genesis Plus GX)
*
* Redistribution and use of this code or any derivative works are permitted
* provided that the following conditions are met:
@ -3725,14 +3725,14 @@ void parse_satb_m4(int line)
/* Sprite Y position */
ypos = st[i];
/* Check end of sprite list marker */
if (ypos == (bitmap.viewport.h + 16))
/* Check end of sprite list marker (no effect in extended modes) */
if ((ypos == 208) && (bitmap.viewport.h == 192))
{
break;
}
/* Wrap Y coordinate for sprites > 256-16 */
if (ypos >= 240)
if (ypos > 240)
{
ypos -= 256;
}

4
core/vdp_render.h
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@ -1,11 +1,11 @@
/***************************************************************************************
* Genesis Plus
* Video Display Processor (video output rendering)
* Video Display Processor (pixel output rendering)
*
* Support for all TMS99xx modes, Mode 4 & Mode 5 rendering
*
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Charles Mac Donald (original code)
* Copyright (C) 2007-2015 Eke-Eke (Genesis Plus GX)
* Copyright (C) 2007-2016 Eke-Eke (Genesis Plus GX)
*
* Redistribution and use of this code or any derivative works are permitted
* provided that the following conditions are met: