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fix screen tearing in rampgwt

This commit is contained in:
dinkc64 2018-12-06 00:21:09 -05:00
parent fc406e8f9a
commit ef497eb681
1 changed files with 7 additions and 10 deletions
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17
src/burn/drv/midway/midwunit.cpp
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@ -3,7 +3,7 @@
// todo:
// 1: fix dips (f.ex, service mode is "Coinage Source" for Rampage W.T.)
// 2: going from window'd (32bit) to fullscreen (16bit) causes broken colors
// 3: screen tearing in rmpgwt
// 3: figure out why last line doesn't always render in rampgwt
#include "tiles_generic.h"
#include "midwunit.h"
@ -44,7 +44,6 @@ static UINT16 nDMA[32];
static UINT16 nWolfUnitCtrl = 0;
#define RGB888(r,g,b) ((r) | ((g) << 8) | ((b) << 16))
#define RGB888_r(x) ((x) & 0xFF)
#define RGB888_g(x) (((x) >> 8) & 0xFF)
@ -96,7 +95,6 @@ static void sound_sync_end()
}
static UINT16 WolfUnitIoRead(UINT32 address)
{
UINT32 offset = (address >> 4);
@ -254,7 +252,8 @@ static INT32 ScanlineRender(INT32 line, TMS34010Display *info)
if (!pBurnDraw)
return 0;
UINT16 *src = &DrvVRAM16[(info->rowaddr << 9) & 0x3FE00];
UINT16 *src = &DrvVRAM16[(info->rowaddr << 9) & 0x3FE00];
if (info->rowaddr >= nScreenHeight)
return 0;
@ -447,15 +446,13 @@ INT32 WolfUnitFrame()
Dcs2kNewFrame();
INT32 nInterleave = 288;
//INT32 nCyclesTotal[2] = { (INT32)(50000000/54.71), (INT32)(26000000 / 54.71) };
//INT32 nCyclesDone[2] = { 0, 0 };
static INT32 line = 0;
INT32 nCyclesTotal[2] = { (INT32)(50000000/8/54.71), (INT32)(10000000 / 54.71) };
INT32 nCyclesDone[2] = { 0, 0 };
for (INT32 i = 0; i < nInterleave; i++) {
// nCyclesDone[0] += TMS34010Run(nCyclesTotal[0] / nInterleave); //(nCyclesTotal[0] * (i + 1) / nInterleave) - nCyclesDone[0]);
nCyclesDone[0] += TMS34010Run((nCyclesTotal[0] * (i + 1) / nInterleave) - nCyclesDone[0]);
TMS34010Run(396); //50000000/8/54.71/288
line = TMS34010GenerateScanline(line);
TMS34010GenerateScanline(i);
HandleDCSIRQ(i);