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GPU: Run draw clock at sysclk * 2

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This commit is contained in:
Connor McLaughlin
2020-06-13 01:28:49 +10:00
parent 0dfb9f7d90
commit dad63f2303
4 changed files with 150 additions and 98 deletions
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27
src/core/gpu_commands.cpp
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@ -27,7 +27,7 @@ void GPU::ExecuteCommands()
for (;;)
{
if (m_command_ticks <= m_max_run_ahead && !m_fifo.IsEmpty())
if (m_pending_command_ticks <= m_max_run_ahead && !m_fifo.IsEmpty())
{
switch (m_blitter_state)
{
@ -108,6 +108,7 @@ void GPU::ExecuteCommands()
break;
}
UpdateGPUIdle();
m_syncing = false;
}
@ -325,8 +326,8 @@ bool GPU::HandleRenderPolygonCommand()
const u32 total_words = words_per_vertex * num_vertices + BoolToUInt32(!rc.shading_enable);
CHECK_COMMAND_SIZE(total_words);
if (IsInterlacedRenderingEnabled() && IsRasterScanlinePending())
Synchronize();
if (IsInterlacedRenderingEnabled() && IsCRTCScanlinePending())
SynchronizeCRTC();
// setup time
static constexpr u16 s_setup_time[2][2][2] = {{{46, 226}, {334, 496}}, {{82, 262}, {370, 532}}};
@ -367,8 +368,8 @@ bool GPU::HandleRenderRectangleCommand()
CHECK_COMMAND_SIZE(total_words);
if (IsInterlacedRenderingEnabled() && IsRasterScanlinePending())
Synchronize();
if (IsInterlacedRenderingEnabled() && IsCRTCScanlinePending())
SynchronizeCRTC();
if (rc.texture_enable)
SetTexturePalette(Truncate16(m_fifo.Peek(2) >> 16));
@ -397,8 +398,8 @@ bool GPU::HandleRenderLineCommand()
const u32 total_words = rc.shading_enable ? 4 : 3;
CHECK_COMMAND_SIZE(total_words);
if (IsInterlacedRenderingEnabled() && IsRasterScanlinePending())
Synchronize();
if (IsInterlacedRenderingEnabled() && IsCRTCScanlinePending())
SynchronizeCRTC();
Log_TracePrintf("Render %s %s line (%u total words)", rc.transparency_enable ? "semi-transparent" : "opaque",
rc.shading_enable ? "shaded" : "monochrome", total_words);
@ -420,8 +421,8 @@ bool GPU::HandleRenderPolyLineCommand()
const u32 min_words = rc.shading_enable ? 3 : 4;
CHECK_COMMAND_SIZE(min_words);
if (IsInterlacedRenderingEnabled() && IsRasterScanlinePending())
Synchronize();
if (IsInterlacedRenderingEnabled() && IsCRTCScanlinePending())
SynchronizeCRTC();
const TickCount setup_ticks = 16;
AddCommandTicks(setup_ticks);
@ -446,8 +447,8 @@ bool GPU::HandleFillRectangleCommand()
{
CHECK_COMMAND_SIZE(3);
if (IsInterlacedRenderingEnabled() && IsRasterScanlinePending())
Synchronize();
if (IsInterlacedRenderingEnabled() && IsCRTCScanlinePending())
SynchronizeCRTC();
FlushRender();
@ -502,8 +503,8 @@ void GPU::FinishVRAMWrite()
m_blit_buffer.data(), true);
}
if (IsInterlacedRenderingEnabled() && IsRasterScanlinePending())
Synchronize();
if (IsInterlacedRenderingEnabled() && IsCRTCScanlinePending())
SynchronizeCRTC();
FlushRender();