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Basic ringbuffer worker. Super hacky, not yet writing back to CPU.

This commit is contained in:
Ben Vanik 2013-06-01 01:13:30 -07:00
parent 3667821be3
commit 5b0fa8f17e
9 changed files with 270 additions and 29 deletions
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2
src/xenia/gpu/gpu.cc
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@ -11,7 +11,7 @@
#include <xenia/gpu/gpu-private.h>
#if XE_PLATFORM(WIN32)
#include <xenia/gpu/d3d11/d3d11.h>
//#include <xenia/gpu/d3d11/d3d11.h>
#endif // WIN32
#include <xenia/gpu/nop/nop.h>

30
src/xenia/gpu/graphics_system.cc
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@ -9,6 +9,8 @@
#include <xenia/gpu/graphics_system.h>
#include <xenia/gpu/ring_buffer_worker.h>
using namespace xe;
using namespace xe::gpu;
@ -16,12 +18,40 @@ using namespace xe::gpu;
GraphicsSystem::GraphicsSystem(const CreationParams* params) {
memory_ = xe_memory_retain(params->memory);
worker_ = new RingBufferWorker(memory_);
}
GraphicsSystem::~GraphicsSystem() {
// TODO(benvanik): worker join/etc.
delete worker_;
xe_memory_release(memory_);
}
xe_memory_ref GraphicsSystem::memory() {
return xe_memory_retain(memory_);
}
void GraphicsSystem::InitializeRingBuffer(uint32_t ptr, uint32_t page_count) {
worker_->Initialize(ptr, page_count);
}
uint64_t GraphicsSystem::ReadRegister(uint32_t r) {
XELOGGPU("ReadRegister(%.4X)", r);
return 0;
}
void GraphicsSystem::WriteRegister(uint32_t r, uint64_t value) {
XELOGGPU("WriteRegister(%.4X, %.8X)", r, value);
switch (r) {
case 0x0714: // CP_RB_WPTR
worker_->UpdateWritePointer((uint32_t)value);
break;
default:
XELOGW("Unknown GPU register %.4X write: %.8X", r, value);
break;
}
}

12
src/xenia/gpu/graphics_system.h
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@ -16,6 +16,8 @@
namespace xe {
namespace gpu {
class RingBufferWorker;
class CreationParams {
public:
@ -31,9 +33,13 @@ public:
xe_memory_ref memory();
virtual uint64_t ReadRegister(uint32_t r) = 0;
virtual void WriteRegister(uint32_t r, uint64_t value) = 0;
virtual void Initialize() = 0;
void InitializeRingBuffer(uint32_t ptr, uint32_t page_count);
virtual uint64_t ReadRegister(uint32_t r);
virtual void WriteRegister(uint32_t r, uint64_t value);
public:
static uint64_t ReadRegisterThunk(GraphicsSystem* this_ptr, uint32_t r) {
return this_ptr->ReadRegister(r);
}
@ -45,6 +51,8 @@ protected:
GraphicsSystem(const CreationParams* params);
xe_memory_ref memory_;
RingBufferWorker* worker_;
};

8
src/xenia/gpu/nop/nop_graphics_system.cc
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@ -24,11 +24,5 @@ NopGraphicsSystem::NopGraphicsSystem(const CreationParams* params) :
NopGraphicsSystem::~NopGraphicsSystem() {
}
uint64_t NopGraphicsSystem::ReadRegister(uint32_t r) {
XELOGGPU("ReadRegister(%.4X)", r);
return 0;
}
void NopGraphicsSystem::WriteRegister(uint32_t r, uint64_t value) {
XELOGGPU("WriteRegister(%.4X, %.8X)", r, value);
void NopGraphicsSystem::Initialize() {
}

3
src/xenia/gpu/nop/nop_graphics_system.h
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@ -26,8 +26,7 @@ public:
NopGraphicsSystem(const CreationParams* params);
virtual ~NopGraphicsSystem();
virtual uint64_t ReadRegister(uint32_t r);
virtual void WriteRegister(uint32_t r, uint64_t value);
virtual void Initialize();
};

103
src/xenia/gpu/ring_buffer_worker.cc Normal file
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@ -0,0 +1,103 @@
/**
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2013 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
#include <xenia/gpu/ring_buffer_worker.h>
using namespace xe;
using namespace xe::gpu;
RingBufferWorker::RingBufferWorker(xe_memory_ref memory) :
memory_(memory) {
running_ = true;
read_ptr_index_event_ = CreateEvent(
NULL, FALSE, FALSE, NULL);
write_ptr_index_event_ = CreateEvent(
NULL, FALSE, FALSE, NULL);
thread_ = xe_thread_create(
"RingBufferWorker",
(xe_thread_callback)ThreadStartThunk, this);
}
RingBufferWorker::~RingBufferWorker() {
// TODO(benvanik): thread join.
running_ = false;
SetEvent(write_ptr_index_event_);
xe_thread_release(thread_);
CloseHandle(write_ptr_index_event_);
}
void RingBufferWorker::Initialize(uint32_t ptr, uint32_t page_count) {
primary_buffer_ptr_ = ptr;
primary_buffer_size_ = page_count * 4 * 1024;
read_ptr_index_ = 0;
xe_thread_start(thread_);
}
void RingBufferWorker::UpdateWritePointer(uint32_t value) {
write_ptr_index_ = value;
SetEvent(write_ptr_index_event_);
}
void RingBufferWorker::ThreadStart() {
uint8_t* p = xe_memory_addr(memory_);
while (running_) {
if (write_ptr_index_ == 0xBAADF00D ||
read_ptr_index_ == write_ptr_index_) {
// Wait for the command buffer pointer to move.
// TODO(benvanik): only wait for a bit and check running_.
WaitForSingleObject(write_ptr_index_event_, INFINITE);
if (!running_) {
break;
}
}
if (read_ptr_index_ == write_ptr_index_) {
continue;
}
// Process the new commands.
XELOGGPU("Ring buffer thread work");
#define READ_UINT32() \
XEGETUINT32BE(p + primary_buffer_ptr_ + read_ptr_index_ * 4); \
read_ptr_index_ = (read_ptr_index_ + 1) % (primary_buffer_size_ / 4);
while (true) {
uint32_t command = READ_UINT32();
XELOGGPU("Command(%.8X)", command);
switch (command) {
case 0xC0114800:
// Init packet.
// Will have 18-19 ops after it. Maybe.
for (int n = 0; n < 18; n++) {
READ_UINT32();
}
break;
case 0xC0013F00:
// Kick segment.
uint32_t segment_ptr = READ_UINT32();
uint32_t length = READ_UINT32();
XELOGGPU("Command(%.8X): kick segment %.8X (%db)",
command, segment_ptr, length);
break;
}
if (read_ptr_index_ == write_ptr_index_) {
break;
}
}
SetEvent(read_ptr_index_event_);
}
}

57
src/xenia/gpu/ring_buffer_worker.h Normal file
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@ -0,0 +1,57 @@
/**
******************************************************************************
* Xenia : Xbox 360 Emulator Research Project *
******************************************************************************
* Copyright 2013 Ben Vanik. All rights reserved. *
* Released under the BSD license - see LICENSE in the root for more details. *
******************************************************************************
*/
#ifndef XENIA_GPU_RING_BUFFER_WORKER_H_
#define XENIA_GPU_RING_BUFFER_WORKER_H_
#include <xenia/core.h>
namespace xe {
namespace gpu {
class RingBufferWorker {
public:
RingBufferWorker(xe_memory_ref memory);
virtual ~RingBufferWorker();
xe_memory_ref memory();
void Initialize(uint32_t ptr, uint32_t page_count);
void UpdateWritePointer(uint32_t value);
protected:
static void ThreadStartThunk(RingBufferWorker* this_ptr) {
this_ptr->ThreadStart();
}
void ThreadStart();
protected:
xe_memory_ref memory_;
xe_thread_ref thread_;
bool running_;
HANDLE read_ptr_index_event_;
HANDLE write_ptr_index_event_;
uint32_t primary_buffer_ptr_;
uint32_t primary_buffer_size_;
uint32_t secondary_buffer_ptr_;
uint32_t secondary_buffer_size_;
uint32_t read_ptr_index_;
uint32_t write_ptr_index_;
};
} // namespace gpu
} // namespace xe
#endif // XENIA_GPU_RING_BUFFER_WORKER_H_

4
src/xenia/gpu/sources.gypi
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@ -6,6 +6,8 @@
'gpu.h',
'graphics_system.cc',
'graphics_system.h',
'ring_buffer_worker.cc',
'ring_buffer_worker.h',
],
'includes': [
@ -15,7 +17,7 @@
'conditions': [
['OS == "win"', {
'includes': [
'd3d11/sources.gypi',
#'d3d11/sources.gypi',
],
}],
],

66
src/xenia/kernel/modules/xboxkrnl/xboxkrnl_video.cc
View File

@ -9,6 +9,7 @@
#include <xenia/kernel/modules/xboxkrnl/xboxkrnl_video.h>
#include <xenia/gpu/gpu.h>
#include <xenia/kernel/shim_utils.h>
#include <xenia/kernel/modules/xboxkrnl/kernel_state.h>
#include <xenia/kernel/modules/xboxkrnl/xboxkrnl_private.h>
@ -16,6 +17,7 @@
using namespace xe;
using namespace xe::gpu;
using namespace xe::kernel;
using namespace xe::kernel::xboxkrnl;
@ -83,10 +85,19 @@ SHIM_CALL VdQueryVideoMode_shim(
void xeVdInitializeEngines(uint32_t unk0, uint32_t callback, uint32_t unk1,
uint32_t unk2_ptr, uint32_t unk3_ptr) {
KernelState* state = shared_kernel_state_;
XEASSERTNOTNULL(state);
GraphicsSystem* gs = state->processor()->graphics_system().get();
if (!gs) {
return;
}
// r3 = 0x4F810000
// r4 = function ptr (ready callback?)
// r5 = 0
// r6/r7 = some binary data in .data
gs->Initialize();
}
@ -107,9 +118,18 @@ SHIM_CALL VdInitializeEngines_shim(
void xeVdSetGraphicsInterruptCallback(uint32_t callback, uint32_t user_data) {
KernelState* state = shared_kernel_state_;
XEASSERTNOTNULL(state);
GraphicsSystem* gs = state->processor()->graphics_system().get();
if (!gs) {
return;
}
// callback takes 2 params
// r3 = bool 0/1 - 0 is normal interrupt, 1 is some acquire/lock mumble
// r4 = user_data (r4 of VdSetGraphicsInterruptCallback)
//gs->SetupInterruptCallback(callback, user_data);
}
@ -126,28 +146,54 @@ SHIM_CALL VdSetGraphicsInterruptCallback_shim(
}
// VdInitializeRingBuffer
void xeVdInitializeRingBuffer(uint32_t ptr, uint32_t page_count) {
KernelState* state = shared_kernel_state_;
XEASSERTNOTNULL(state);
GraphicsSystem* gs = state->processor()->graphics_system().get();
if (!gs) {
return;
}
// r3 = result of MmGetPhysicalAddress
// r4 = number of pages? page size?
// 0x8000 -> cntlzw=16 -> 0x1C - 16 = 12
// ring_buffer_t {
// uint 0
// uint buffer_0_size
// uint buffer_0_ptr
// uint buffer_1_size
// uint buffer_1_ptr
// uint segment_count -- 32 common
// }
// Buffer pointers are from MmAllocatePhysicalMemory with WRITE_COMBINE.
// Sizes could be zero? XBLA games seem to do this. Default sizes?
// D3D does size / region_count - must be > 1024
gs->InitializeRingBuffer(ptr, page_count);
}
SHIM_CALL VdInitializeRingBuffer_shim(
xe_ppc_state_t* ppc_state, KernelState* state) {
uint32_t ptr = SHIM_GET_ARG_32(0);
uint32_t page_count = SHIM_GET_ARG_32(1);
XELOGD(
"VdInitializeRingBuffer(%.8X, %.8X)",
ptr, page_count);
xeVdInitializeRingBuffer(ptr, page_count);
}
// void VdEnableRingBufferRPtrWriteBack
// r3 = ? pointer? doesn't look like a valid one
// r4 = 6, usually --- <=19
// Same value used to calculate the pointer is later written to
// Maybe GPU-memory relative?
SHIM_CALL VdEnableRingBufferRPtrWriteBack_shim(
xe_ppc_state_t* ppc_state, KernelState* state) {
uint32_t ptr = SHIM_GET_ARG_32(0);
uint32_t unk1 = SHIM_GET_ARG_32(1);
XELOGD(
"VdEnableRingBufferRPtrWriteBack(%.8X, %.8X)",
ptr, unk1);
// TODO(benvanik): something?
}
// VdSetSystemCommandBufferGpuIdentifierAddress
@ -176,6 +222,8 @@ void xe::kernel::xboxkrnl::RegisterVideoExports(
SHIM_SET_MAPPING("xboxkrnl.exe", VdQueryVideoMode, state);
SHIM_SET_MAPPING("xboxkrnl.exe", VdInitializeEngines, state);
SHIM_SET_MAPPING("xboxkrnl.exe", VdSetGraphicsInterruptCallback, state);
SHIM_SET_MAPPING("xboxkrnl.exe", VdInitializeRingBuffer, state);
SHIM_SET_MAPPING("xboxkrnl.exe", VdEnableRingBufferRPtrWriteBack, state);
xe_memory_ref memory = state->memory();
uint8_t* mem = xe_memory_addr(memory);