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Screen extent write; doesn't seem to do anything :/

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This commit is contained in:
Ben Vanik
2015-03-14 16:50:54 -07:00
parent 7192728fe0
commit 6f0ca00651
2 changed files with 24 additions and 5 deletions
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25
src/xenia/gpu/gl4/command_processor.cc
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@@ -1144,11 +1144,12 @@ bool CommandProcessor::ExecutePacketType3_COND_WRITE(RingbufferReader* reader,
}
bool CommandProcessor::ExecutePacketType3_EVENT_WRITE(RingbufferReader* reader,
uint32_t packet,
uint32_t count) {
// generate an event that creates a write to memory when completed
uint32_t initiator = reader->Read();
// Writeback initiator.
WriteRegister(XE_GPU_REG_VGT_EVENT_INITIATOR, initiator & 0x3F);
if (count == 1) {
// Just an event flag? Where does this write?
} else {
@@ -1186,8 +1187,26 @@ bool CommandProcessor::ExecutePacketType3_EVENT_WRITE_SHD(
bool CommandProcessor::ExecutePacketType3_EVENT_WRITE_EXT(
RingbufferReader* reader, uint32_t packet, uint32_t count) {
// generate a screen extent event
uint32_t unk0 = reader->Read();
uint32_t unk1 = reader->Read();
uint32_t initiator = reader->Read();
uint32_t address = reader->Read();
// Writeback initiator.
WriteRegister(XE_GPU_REG_VGT_EVENT_INITIATOR, initiator & 0x3F);
auto endianness = static_cast<Endian>(address & 0x3);
address &= ~0x3;
// Let us hope we can fake this.
uint16_t extents[] = {
0 / 8, // min x
2560 / 8, // max x
0 / 8, // min y
2560 / 8, // max y
0, // min z
0, // max z
};
assert_true(endianness == xenos::Endian::k8in16);
poly::copy_and_swap_16_aligned(
reinterpret_cast<uint16_t*>(membase_ + GpuToCpu(address)), extents,
poly::countof(extents));
trace_writer_.WriteMemoryWrite(address, sizeof(extents));
return true;
}