Fix some edge cases and imprve depth visualisation:

- Remove upper 4-bits of each vertex as they may contain bad data (THPS)
- Check if memory block from DMA is as expected, some primitives are not the first data in the block and preceding data needs to be skipped (HT, A2)

- Change depth visualisation to a colour gradient that makes inconsistencies easier to see
- Add support for visualising low resolution but consistent depth found in the Ordering Table

1 files changed, 5 insertions, 2 deletions

diff --git a/plugins/peopsxgl/gpu.c b/plugins/peopsxgl/gpu.c
index 5becb698..99ef36ba 100755
--- a/plugins/peopsxgl/gpu.c
+++ b/plugins/peopsxgl/gpu.c
@@ -716,7 +716,7 @@ long CALLBACK GPUopen(HWND hwndGPU)
  InitializeTextureStore();                             // init texture mem
 
  resetGteVertices();
- 
+
 // lGPUstatusRet = 0x74000000;
 
 // with some emus, we could do the OGL init right here... oh my
@@ -3138,6 +3138,7 @@ long CALLBACK GPUdmaChain(uint32_t *baseAddrL, uint32_t addr)
 
  baseAddrB = (unsigned char*) baseAddrL;
 
+ uint32_t depthCount = 0;
  do
   {
    if(iGPUHeight==512) addr&=0x1FFFFC;
@@ -3151,9 +3152,11 @@ long CALLBACK GPUdmaChain(uint32_t *baseAddrL, uint32_t addr)
 
    if (count > 0)
    {
-	   PGXP_SetAddress(dmaMem >> 2);
+	   PGXP_SetAddress(dmaMem >> 2, &baseAddrL[dmaMem >> 2], count);
 	   GPUwriteDataMem(&baseAddrL[dmaMem >> 2], count);
    }
+   else
+	   PGXP_SetDepth(depthCount++);
 
    addr = baseAddrL[addr>>2]&0xffffff;
   }