Tekken 3 - gpu.c

- Add infinite dma loop check to chain slice
- Fixes post-replay flicker

git-svn-id: https://pcsxr.svn.codeplex.com/svn/pcsxr@59480 e17a0e51-4ae3-4d35-97c3-1a29b211df97

1 files changed, 10 insertions, 4 deletions

diff --git a/libpcsxcore/gpu.c b/libpcsxcore/gpu.c
index 767d332e..8d33639f 100644
--- a/libpcsxcore/gpu.c
+++ b/libpcsxcore/gpu.c
@@ -42,6 +42,7 @@ extern unsigned int hSyncCount;
 

 u32 chain_ptr_addr;

 u32 chain_ptr_mem;

+u8 chain_infinite_loop;

 

 /*

 DMA2 Chain slicing

@@ -86,6 +87,7 @@ static u32 gpuDmaChainSize(u32 addr) {
 

 	// initial linked list ptr (word)

 	size = 1;

+	chain_infinite_loop = 0;

 

 	do {

 		addr &= 0x1ffffc;

@@ -95,7 +97,11 @@ static u32 gpuDmaChainSize(u32 addr) {
 

 

 		//if (DMACommandCounter++ > 2000000) break;

-		if (CheckForEndlessLoop(addr)) break;

+		if (CheckForEndlessLoop(addr))

+		{

+			chain_infinite_loop = 1;

+			break;

+		}

 

 

 		// # 32-bit blocks to transfer

@@ -109,7 +115,7 @@ static u32 gpuDmaChainSize(u32 addr) {
 

 	chain_ptr_addr = addr;

 

-	if( addr != 0xffffff )

+	if( !chain_infinite_loop && addr != 0xffffff )

 	{

 		// save data at stop ptr

 		chain_ptr_mem = psxMu32( addr );

@@ -229,8 +235,8 @@ void gpuInterrupt() {
 #endif

 

 

-		// check valid data left - no Tekken 3 check yet

-		if( chain_ptr_addr != 0xffffff )

+		// check valid data left

+		if( !chain_infinite_loop && chain_ptr_addr != 0xffffff )

 		{

 			// put back old value first

 			psxMu32ref( chain_ptr_addr ) = chain_ptr_mem;