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VdInitializeScalerCommandBuffer.

This commit is contained in:
Ben Vanik 2014-11-01 11:12:31 -07:00
parent bea90d65cf
commit 2ee42c2876
1 changed files with 34 additions and 0 deletions
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34
src/xenia/kernel/xboxkrnl_video.cc
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@ -239,6 +239,39 @@ SHIM_CALL VdSetSystemCommandBufferGpuIdentifierAddress_shim(
// r4 = 19
// no op?
SHIM_CALL VdInitializeScalerCommandBuffer_shim(PPCContext* ppc_state,
KernelState* state) {
uint32_t unk0 = SHIM_GET_ARG_32(0); // 0?
uint32_t unk1 = SHIM_GET_ARG_32(1); // 0x050002d0 size of ?
uint32_t unk2 = SHIM_GET_ARG_32(2); // 0?
uint32_t unk3 = SHIM_GET_ARG_32(3); // 0x050002d0 size of ?
uint32_t unk4 = SHIM_GET_ARG_32(4); // 0x050002d0 size of ?
uint32_t unk5 = SHIM_GET_ARG_32(5); // 7?
uint32_t unk6 = SHIM_GET_ARG_32(6); // 0x2004909c <-- points to zeros?
uint32_t unk7 = SHIM_GET_ARG_32(7); // 7?
// arg8 is in stack!
uint32_t sp = (uint32_t)ppc_state->r[1];
// Points to the first 80000000h where the memcpy sources from.
uint32_t dest_ptr = SHIM_MEM_32(sp + 0x64);
XELOGD(
"VdInitializeScalerCommandBuffer(%.8X, %.8X, %.8X, %.8X, %.8X, %.8X, "
"%.8X, %.8X, %.8X)",
unk0, unk1, unk2, unk3, unk4, unk5, unk6, unk7, dest_ptr);
// We could fake the commands here, but I'm not sure the game checks for
// anything but success (non-zero ret).
// For now, we just fill it with NOPs.
size_t total_words = 0x1CC / 4;
uint8_t* p = SHIM_MEM_ADDR(dest_ptr);
for (size_t i = 0; i < total_words; ++i, p += 4) {
poly::store_and_swap(p, 0x80000000);
}
// returns memcpy size >> 2 for memcpy(...,...,ret << 2)
SHIM_SET_RETURN_64(total_words >> 2);
}
SHIM_CALL VdCallGraphicsNotificationRoutines_shim(PPCContext* ppc_state,
KernelState* state) {
uint32_t unk_1 = SHIM_GET_ARG_32(0);
@ -341,6 +374,7 @@ void xe::kernel::xboxkrnl::RegisterVideoExports(ExportResolver* export_resolver,
SHIM_SET_MAPPING("xboxkrnl.exe", VdGetSystemCommandBuffer, state);
SHIM_SET_MAPPING("xboxkrnl.exe", VdSetSystemCommandBufferGpuIdentifierAddress,
state);
SHIM_SET_MAPPING("xboxkrnl.exe", VdInitializeScalerCommandBuffer, state);
SHIM_SET_MAPPING("xboxkrnl.exe", VdCallGraphicsNotificationRoutines, state);
SHIM_SET_MAPPING("xboxkrnl.exe", VdIsHSIOTrainingSucceeded, state);
SHIM_SET_MAPPING("xboxkrnl.exe", VdPersistDisplay, state);