sgilissen/llamaplayer
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

System: Add memory-only save states and rewind

Browse Source
This commit is contained in:
Connor McLaughlin
2021-01-23 19:00:54 +10:00
parent 6c6fdeb15e
commit 516d685dd0
22 changed files with 537 additions and 70 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
src/core/gpu.cpp
View File

@ -75,7 +75,7 @@ std::tuple<u32, u32> GPU::GetEffectiveDisplayResolution()
return std::tie(m_crtc_state.display_vram_width, m_crtc_state.display_vram_height);
}
void GPU::Reset()
void GPU::Reset(bool clear_vram)
{
SoftReset();
m_set_texture_disable_mask = false;
@ -119,12 +119,12 @@ void GPU::SoftReset()
UpdateCommandTickEvent();
}
bool GPU::DoState(StateWrapper& sw, bool update_display)
bool GPU::DoState(StateWrapper& sw, HostDisplayTexture** host_texture, bool update_display)
{
if (sw.IsReading())
{
// perform a reset to discard all pending draws/fb state
Reset();
Reset(host_texture == nullptr);
}
sw.Do(&m_GPUSTAT.bits);
@ -214,16 +214,27 @@ bool GPU::DoState(StateWrapper& sw, bool update_display)
UpdateDMARequest();
}
if (!sw.DoMarker("GPU-VRAM"))
return false;
if (!host_texture)
{
if (!sw.DoMarker("GPU-VRAM"))
return false;
if (sw.IsReading())
{
// Still need a temporary here.
HeapArray<u16, VRAM_WIDTH* VRAM_HEIGHT> temp;
sw.DoBytes(temp.data(), VRAM_WIDTH * VRAM_HEIGHT * sizeof(u16));
UpdateVRAM(0, 0, VRAM_WIDTH, VRAM_HEIGHT, temp.data(), false, false);
}
else
{
ReadVRAM(0, 0, VRAM_WIDTH, VRAM_HEIGHT);
sw.DoBytes(m_vram_ptr, VRAM_WIDTH * VRAM_HEIGHT * sizeof(u16));
}
}
if (sw.IsReading())
{
// Still need a temporary here.
HeapArray<u16, VRAM_WIDTH * VRAM_HEIGHT> temp;
sw.DoBytes(temp.data(), VRAM_WIDTH * VRAM_HEIGHT * sizeof(u16));
UpdateVRAM(0, 0, VRAM_WIDTH, VRAM_HEIGHT, temp.data(), false, false);
UpdateCRTCConfig();
if (update_display)
UpdateDisplay();
@ -231,11 +242,6 @@ bool GPU::DoState(StateWrapper& sw, bool update_display)
UpdateCRTCTickEvent();
UpdateCommandTickEvent();
}
else
{
ReadVRAM(0, 0, VRAM_WIDTH, VRAM_HEIGHT);
sw.DoBytes(m_vram_ptr, VRAM_WIDTH * VRAM_HEIGHT * sizeof(u16));
}
return !sw.HasError();
}