case 0x05:
gpu.screen.x = data & 0x3ff;
gpu.screen.y = (data >> 10) & 0x3ff;
- if (gpu.frameskip.set)
+ if (gpu.frameskip.set && gpu.frameskip.last_flip_frame != *gpu.state.frame_count) {
decide_frameskip();
+ gpu.frameskip.last_flip_frame = *gpu.state.frame_count;
+ }
break;
case 0x06:
gpu.screen.x1 = data & 0xfff;
//printf(" %3d: %02x %d\n", pos, cmd, len);
if ((cmd & 0xf4) == 0x24) {
// flat textured prim
- gpu.status.reg &= ~0x1ff;
- gpu.status.reg |= list[4] & 0x1ff;
+ gpu.ex_regs[1] &= ~0x1ff;
+ gpu.ex_regs[1] |= list[4] & 0x1ff;
}
else if ((cmd & 0xf4) == 0x34) {
// shaded textured prim
- gpu.status.reg &= ~0x1ff;
- gpu.status.reg |= list[5] & 0x1ff;
+ gpu.ex_regs[1] &= ~0x1ff;
+ gpu.ex_regs[1] |= list[5] & 0x1ff;
}
- else switch (cmd)
+ else if (cmd == 0xe3)
{
- case 0xe1:
- gpu.status.reg &= ~0x7ff;
- gpu.status.reg |= list[0] & 0x7ff;
- break;
- case 0xe6:
- gpu.status.reg &= ~0x1800;
- gpu.status.reg |= (list[0] & 3) << 11;
- break;
+ // no frameskip if it decides to draw to display area,
+ // but not for interlace since it'll most likely always do that
+ uint32_t x = list[0] & 0x3ff;
+ uint32_t y = (list[0] >> 10) & 0x3ff;
+ gpu.frameskip.allow = gpu.status.interlace ||
+ (uint32_t)(x - gpu.screen.x) >= (uint32_t)gpu.screen.w ||
+ (uint32_t)(y - gpu.screen.y) >= (uint32_t)gpu.screen.h;
}
if (2 <= cmd && cmd < 0xc0)
vram_dirty = 1;
}
if (pos - start > 0) {
- if (!gpu.frameskip.active)
+ if (!gpu.frameskip.active || !gpu.frameskip.allow)
do_cmd_list(data + start, pos - start);
start = pos;
}
break;
}
+ gpu.status.reg &= ~0x1fff;
+ gpu.status.reg |= gpu.ex_regs[1] & 0x7ff;
+ gpu.status.reg |= (gpu.ex_regs[6] & 3) << 11;
+
if (gpu.frameskip.active)
renderer_sync_ecmds(gpu.ex_regs);
gpu.state.fb_dirty |= vram_dirty;
return ret;
}
-typedef struct GPUFREEZETAG
+struct GPUFreeze
{
uint32_t ulFreezeVersion; // should be always 1 for now (set by main emu)
uint32_t ulStatus; // current gpu status
uint32_t ulControl[256]; // latest control register values
unsigned char psxVRam[1024*1024*2]; // current VRam image (full 2 MB for ZN)
-} GPUFreeze_t;
+};
-long GPUfreeze(uint32_t type, GPUFreeze_t *freeze)
+long GPUfreeze(uint32_t type, struct GPUFreeze *freeze)
{
int i;