obs-studio/plugins/win-capture/graphics-hook/d3d9-capture.cpp

942 lines
22 KiB
C++

#include <d3d9.h>
#include <d3d11.h>
#include <dxgi.h>
#include "graphics-hook.h"
#include "../funchook.h"
#include "d3d9-patches.hpp"
typedef HRESULT (STDMETHODCALLTYPE *present_t)(IDirect3DDevice9*,
CONST RECT*, CONST RECT*, HWND, CONST RGNDATA*);
typedef HRESULT (STDMETHODCALLTYPE *present_ex_t)(IDirect3DDevice9*,
CONST RECT*, CONST RECT*, HWND, CONST RGNDATA*, DWORD);
typedef HRESULT (STDMETHODCALLTYPE *present_swap_t)(IDirect3DSwapChain9*,
CONST RECT*, CONST RECT*, HWND, CONST RGNDATA*, DWORD);
typedef HRESULT (STDMETHODCALLTYPE *reset_t)(IDirect3DDevice9*,
D3DPRESENT_PARAMETERS*);
typedef HRESULT (STDMETHODCALLTYPE *reset_ex_t)(IDirect3DDevice9*,
D3DPRESENT_PARAMETERS*, D3DDISPLAYMODEEX*);
typedef HRESULT (WINAPI *createfactory1_t)(REFIID, void **);
static struct func_hook present;
static struct func_hook present_ex;
static struct func_hook present_swap;
static struct func_hook reset;
static struct func_hook reset_ex;
struct d3d9_data {
HMODULE d3d9;
IDirect3DDevice9 *device; /* do not release */
uint32_t cx;
uint32_t cy;
D3DFORMAT d3d9_format;
DXGI_FORMAT dxgi_format;
bool using_shtex : 1;
bool using_scale : 1;
/* shared texture */
IDirect3DSurface9 *d3d9_copytex;
ID3D11Device *d3d11_device;
ID3D11DeviceContext *d3d11_context;
ID3D11Resource *d3d11_tex;
struct shtex_data *shtex_info;
HANDLE handle;
int patch;
/* shared memory */
IDirect3DSurface9 *copy_surfaces[NUM_BUFFERS];
IDirect3DSurface9 *render_targets[NUM_BUFFERS];
IDirect3DQuery9 *queries[NUM_BUFFERS];
struct shmem_data *shmem_info;
bool texture_mapped[NUM_BUFFERS];
volatile bool issued_queries[NUM_BUFFERS];
uint32_t pitch;
int cur_tex;
int copy_wait;
};
static struct d3d9_data data = {};
static void d3d9_free()
{
capture_free();
if (data.using_shtex) {
if (data.d3d11_tex)
data.d3d11_tex->Release();
if (data.d3d11_context)
data.d3d11_context->Release();
if (data.d3d11_device)
data.d3d11_device->Release();
if (data.d3d9_copytex)
data.d3d9_copytex->Release();
} else {
for (size_t i = 0; i < NUM_BUFFERS; i++) {
if (data.copy_surfaces[i]) {
if (data.texture_mapped[i])
data.copy_surfaces[i]->UnlockRect();
data.copy_surfaces[i]->Release();
}
if (data.render_targets[i])
data.render_targets[i]->Release();
if (data.queries[i])
data.queries[i]->Release();
}
}
memset(&data, 0, sizeof(data));
hlog("----------------- d3d9 capture freed -----------------");
}
static DXGI_FORMAT d3d9_to_dxgi_format(D3DFORMAT format)
{
switch ((unsigned long)format) {
case D3DFMT_A2B10G10R10: return DXGI_FORMAT_R10G10B10A2_UNORM;
case D3DFMT_A8R8G8B8: return DXGI_FORMAT_B8G8R8A8_UNORM;
case D3DFMT_X8R8G8B8: return DXGI_FORMAT_B8G8R8X8_UNORM;
}
return DXGI_FORMAT_UNKNOWN;
}
const static D3D_FEATURE_LEVEL feature_levels[] =
{
D3D_FEATURE_LEVEL_11_0,
D3D_FEATURE_LEVEL_10_1,
D3D_FEATURE_LEVEL_10_0,
D3D_FEATURE_LEVEL_9_3,
};
static inline bool shex_init_d3d11()
{
PFN_D3D11_CREATE_DEVICE create_device;
createfactory1_t create_factory;
D3D_FEATURE_LEVEL level_used;
IDXGIFactory *factory;
IDXGIAdapter *adapter;
HMODULE d3d11;
HMODULE dxgi;
HRESULT hr;
d3d11 = load_system_library("d3d11.dll");
if (!d3d11) {
hlog("d3d9_init: Failed to load D3D11");
return false;
}
dxgi = load_system_library("dxgi.dll");
if (!dxgi) {
hlog("d3d9_init: Failed to load DXGI");
return false;
}
create_factory = (createfactory1_t)GetProcAddress(dxgi,
"CreateDXGIFactory1");
if (!create_factory) {
hlog("d3d9_init: Failed to get CreateDXGIFactory1 address");
return false;
}
create_device = (PFN_D3D11_CREATE_DEVICE)GetProcAddress(d3d11,
"D3D11CreateDevice");
if (!create_device) {
hlog("d3d9_init: Failed to get D3D11CreateDevice address");
return false;
}
hr = create_factory(__uuidof(IDXGIFactory1), (void**)&factory);
if (FAILED(hr)) {
hlog_hr("d3d9_init: Failed to create factory object", hr);
return false;
}
hr = factory->EnumAdapters(0, &adapter);
factory->Release();
if (FAILED(hr)) {
hlog_hr("d3d9_init: Failed to get adapter", hr);
return false;
}
hr = create_device(adapter, D3D_DRIVER_TYPE_UNKNOWN, nullptr,
0, feature_levels,
sizeof(feature_levels) / sizeof(D3D_FEATURE_LEVEL),
D3D11_SDK_VERSION, &data.d3d11_device, &level_used,
&data.d3d11_context);
adapter->Release();
if (FAILED(hr)) {
hlog_hr("d3d9_init: Failed to create D3D11 device", hr);
return false;
}
return true;
}
static inline bool d3d9_shtex_init_shtex()
{
IDXGIResource *res;
HRESULT hr;
D3D11_TEXTURE2D_DESC desc = {};
desc.Width = data.cx;
desc.Height = data.cy;
desc.Format = data.dxgi_format;
desc.MipLevels = 1;
desc.ArraySize = 1;
desc.SampleDesc.Count = 1;
desc.Usage = D3D11_USAGE_DEFAULT;
desc.MiscFlags = D3D11_RESOURCE_MISC_SHARED;
desc.BindFlags = D3D11_BIND_RENDER_TARGET |
D3D11_BIND_SHADER_RESOURCE;
hr = data.d3d11_device->CreateTexture2D(&desc, nullptr,
(ID3D11Texture2D**)&data.d3d11_tex);
if (FAILED(hr)) {
hlog_hr("d3d9_shtex_init_shtex: Failed to create D3D11 texture",
hr);
return false;
}
hr = data.d3d11_tex->QueryInterface(__uuidof(IDXGIResource),
(void**)&res);
if (FAILED(hr)) {
hlog_hr("d3d9_shtex_init_shtex: Failed to query IDXGIResource",
hr);
return false;
}
hr = res->GetSharedHandle(&data.handle);
res->Release();
if (FAILED(hr)) {
hlog_hr("d3d9_shtex_init_shtex: Failed to get shared handle",
hr);
return false;
}
return true;
}
static inline bool d3d9_shtex_init_copytex()
{
struct d3d9_offsets offsets = global_hook_info->offsets.d3d9;
uint8_t *patch_addr = nullptr;
BOOL *p_is_d3d9 = nullptr;
uint8_t saved_data[MAX_PATCH_SIZE];
size_t patch_size = 0;
BOOL was_d3d9ex = false;
IDirect3DTexture9 *tex;
DWORD protect_val;
HRESULT hr;
if (offsets.d3d9_clsoff && offsets.is_d3d9ex_clsoff) {
uint8_t *device_ptr = (uint8_t*)(data.device);
uint8_t *d3d9_ptr =
*(uint8_t**)(device_ptr + offsets.d3d9_clsoff);
p_is_d3d9 = (BOOL*)(d3d9_ptr + offsets.is_d3d9ex_clsoff);
} else {
patch_addr = get_d3d9_patch_addr(data.d3d9, data.patch);
}
if (p_is_d3d9) {
was_d3d9ex = *p_is_d3d9;
*p_is_d3d9 = true;
} else if (patch_addr) {
patch_size = patch[data.patch].size;
VirtualProtect(patch_addr, patch_size, PAGE_EXECUTE_READWRITE,
&protect_val);
memcpy(saved_data, patch_addr, patch_size);
memcpy(patch_addr, patch[data.patch].data, patch_size);
}
hr = data.device->CreateTexture(data.cx, data.cy, 1,
D3DUSAGE_RENDERTARGET, data.d3d9_format,
D3DPOOL_DEFAULT, &tex, &data.handle);
if (p_is_d3d9) {
*p_is_d3d9 = was_d3d9ex;
} else if (patch_addr && patch_size) {
memcpy(patch_addr, saved_data, patch_size);
VirtualProtect(patch_addr, patch_size, protect_val,
&protect_val);
}
if (FAILED(hr)) {
hlog_hr("d3d9_shtex_init_copytex: Failed to create shared texture",
hr);
return false;
}
hr = tex->GetSurfaceLevel(0, &data.d3d9_copytex);
tex->Release();
if (FAILED(hr)) {
hlog_hr("d3d9_shtex_init_copytex: Failed to get surface level", hr);
return false;
}
return true;
}
static bool d3d9_shtex_init(uint32_t cx, uint32_t cy, HWND window)
{
data.using_shtex = true;
if (!shex_init_d3d11()) {
return false;
}
if (!d3d9_shtex_init_shtex()) {
return false;
}
if (!d3d9_shtex_init_copytex()) {
return false;
}
if (!capture_init_shtex(&data.shtex_info, window, cx, cy,
data.cx, data.cy, data.dxgi_format, false,
(uintptr_t)data.handle)) {
return false;
}
hlog("d3d9 shared texture capture successful");
return true;
}
static bool d3d9_shmem_init_buffers(size_t buffer)
{
HRESULT hr;
hr = data.device->CreateOffscreenPlainSurface(data.cx, data.cy,
data.d3d9_format, D3DPOOL_SYSTEMMEM,
&data.copy_surfaces[buffer], nullptr);
if (FAILED(hr)) {
hlog_hr("d3d9_shmem_init_buffers: Failed to create surface",
hr);
return false;
}
if (buffer == 0) {
D3DLOCKED_RECT rect;
hr = data.copy_surfaces[buffer]->LockRect(&rect, nullptr,
D3DLOCK_READONLY);
if (FAILED(hr)) {
hlog_hr("d3d9_shmem_init_buffers: Failed to lock "
"buffer", hr);
return false;
}
data.pitch = rect.Pitch;
data.copy_surfaces[buffer]->UnlockRect();
}
hr = data.device->CreateRenderTarget(data.cx, data.cy,
data.d3d9_format, D3DMULTISAMPLE_NONE, 0, false,
&data.render_targets[buffer], nullptr);
if (FAILED(hr)) {
hlog_hr("d3d9_shmem_init_buffers: Failed to create render "
"target", hr);
return false;
}
hr = data.device->CreateQuery(D3DQUERYTYPE_EVENT,
&data.queries[buffer]);
if (FAILED(hr)) {
hlog_hr("d3d9_shmem_init_buffers: Failed to create query", hr);
return false;
}
return true;
}
static bool d3d9_shmem_init(uint32_t cx, uint32_t cy, HWND window)
{
data.using_shtex = false;
for (size_t i = 0; i < NUM_BUFFERS; i++) {
if (!d3d9_shmem_init_buffers(i)) {
return false;
}
}
if (!capture_init_shmem(&data.shmem_info, window, cx, cy,
data.cx, data.cy, data.pitch, data.dxgi_format,
false)) {
return false;
}
hlog("d3d9 memory capture successful");
return true;
}
static bool d3d9_get_swap_desc(D3DPRESENT_PARAMETERS &pp)
{
IDirect3DSwapChain9 *swap = nullptr;
HRESULT hr;
hr = data.device->GetSwapChain(0, &swap);
if (FAILED(hr)) {
hlog_hr("d3d9_get_swap_desc: Failed to get swap chain", hr);
return false;
}
hr = swap->GetPresentParameters(&pp);
swap->Release();
if (FAILED(hr)) {
hlog_hr("d3d9_get_swap_desc: Failed to get "
"presentation parameters", hr);
return false;
}
return true;
}
static bool d3d9_init_format_backbuffer(uint32_t &cx, uint32_t &cy,
HWND &window)
{
IDirect3DSurface9 *back_buffer = nullptr;
D3DPRESENT_PARAMETERS pp;
D3DSURFACE_DESC desc;
HRESULT hr;
if (!d3d9_get_swap_desc(pp)) {
return false;
}
hr = data.device->GetRenderTarget(0, &back_buffer);
if (FAILED(hr)) {
return false;
}
hr = back_buffer->GetDesc(&desc);
back_buffer->Release();
if (FAILED(hr)) {
hlog_hr("d3d9_init_format_backbuffer: Failed to get "
"backbuffer descriptor", hr);
return false;
}
data.d3d9_format = desc.Format;
data.dxgi_format = d3d9_to_dxgi_format(desc.Format);
data.using_scale = global_hook_info->use_scale;
window = pp.hDeviceWindow;
cx = desc.Width;
cy = desc.Height;
if (data.using_scale) {
data.cx = global_hook_info->cx;
data.cy = global_hook_info->cy;
} else {
data.cx = desc.Width;
data.cy = desc.Height;
}
return true;
}
static bool d3d9_init_format_swapchain(uint32_t &cx, uint32_t &cy, HWND &window)
{
D3DPRESENT_PARAMETERS pp;
if (!d3d9_get_swap_desc(pp)) {
return false;
}
data.dxgi_format = d3d9_to_dxgi_format(pp.BackBufferFormat);
data.d3d9_format = pp.BackBufferFormat;
data.using_scale = global_hook_info->use_scale;
window = pp.hDeviceWindow;
cx = pp.BackBufferWidth;
cy = pp.BackBufferHeight;
if (data.using_scale) {
data.cx = global_hook_info->cx;
data.cy = global_hook_info->cy;
} else {
data.cx = pp.BackBufferWidth;
data.cy = pp.BackBufferHeight;
}
return true;
}
static void d3d9_init(IDirect3DDevice9 *device)
{
IDirect3DDevice9Ex *d3d9ex = nullptr;
bool has_d3d9ex_bool_offset =
global_hook_info->offsets.d3d9.d3d9_clsoff &&
global_hook_info->offsets.d3d9.is_d3d9ex_clsoff;
bool success;
uint32_t cx = 0;
uint32_t cy = 0;
HWND window = nullptr;
HRESULT hr;
data.d3d9 = get_system_module("d3d9.dll");
data.device = device;
hr = device->QueryInterface(__uuidof(IDirect3DDevice9Ex),
(void**)&d3d9ex);
if (SUCCEEDED(hr)) {
d3d9ex->Release();
data.patch = -1;
} else if (!has_d3d9ex_bool_offset) {
data.patch = get_d3d9_patch(data.d3d9);
} else {
data.patch = -1;
}
if (!d3d9_init_format_backbuffer(cx, cy, window)) {
if (!d3d9_init_format_swapchain(cx, cy, window)) {
return;
}
}
if (global_hook_info->force_shmem ||
(!d3d9ex && data.patch == -1 && !has_d3d9ex_bool_offset)) {
success = d3d9_shmem_init(cx, cy, window);
} else {
success = d3d9_shtex_init(cx, cy, window);
}
if (!success)
d3d9_free();
}
static inline HRESULT get_backbuffer(IDirect3DDevice9 *device,
IDirect3DSurface9 **surface)
{
static bool use_backbuffer = false;
static bool checked_exceptions = false;
if (!checked_exceptions) {
if (_strcmpi(get_process_name(), "hotd_ng.exe") == 0)
use_backbuffer = true;
checked_exceptions = true;
}
if (use_backbuffer) {
return device->GetBackBuffer(0, 0, D3DBACKBUFFER_TYPE_MONO,
surface);
} else {
return device->GetRenderTarget(0, surface);
}
}
static inline void d3d9_shtex_capture(IDirect3DSurface9 *backbuffer)
{
D3DTEXTUREFILTERTYPE filter;
HRESULT hr;
filter = data.using_scale ? D3DTEXF_LINEAR : D3DTEXF_NONE;
hr = data.device->StretchRect(backbuffer, nullptr, data.d3d9_copytex,
nullptr, filter);
if (FAILED(hr))
hlog_hr("d3d9_shtex_capture: StretchRect failed", hr);
}
static inline void d3d9_shmem_capture_queue_copy()
{
for (int i = 0; i < NUM_BUFFERS; i++) {
IDirect3DSurface9 *target = data.copy_surfaces[i];
D3DLOCKED_RECT rect;
HRESULT hr;
if (!data.issued_queries[i]) {
continue;
}
if (data.queries[i]->GetData(0, 0, 0) != S_OK) {
continue;
}
data.issued_queries[i] = false;
hr = target->LockRect(&rect, nullptr, D3DLOCK_READONLY);
if (SUCCEEDED(hr)) {
data.texture_mapped[i] = true;
shmem_copy_data(i, rect.pBits);
}
break;
}
}
static inline void d3d9_shmem_capture(IDirect3DSurface9 *backbuffer)
{
D3DTEXTUREFILTERTYPE filter;
IDirect3DSurface9 *copy;
int next_tex;
HRESULT hr;
d3d9_shmem_capture_queue_copy();
next_tex = (data.cur_tex == NUM_BUFFERS - 1) ? 0 : data.cur_tex + 1;
filter = data.using_scale ? D3DTEXF_LINEAR : D3DTEXF_NONE;
copy = data.render_targets[data.cur_tex];
hr = data.device->StretchRect(backbuffer, nullptr, copy, nullptr,
filter);
if (FAILED(hr)) {
hlog_hr("d3d9_shmem_capture: StretchRect failed", hr);
return;
}
if (data.copy_wait < NUM_BUFFERS - 1) {
data.copy_wait++;
} else {
IDirect3DSurface9 *src = data.render_targets[next_tex];
IDirect3DSurface9 *dst = data.copy_surfaces[next_tex];
if (shmem_texture_data_lock(next_tex)) {
dst->UnlockRect();
data.texture_mapped[next_tex] = false;
shmem_texture_data_unlock(next_tex);
}
hr = data.device->GetRenderTargetData(src, dst);
if (FAILED(hr)) {
hlog_hr("d3d9_shmem_capture: GetRenderTargetData "
"failed", hr);
}
data.queries[next_tex]->Issue(D3DISSUE_END);
data.issued_queries[next_tex] = true;
}
data.cur_tex = next_tex;
}
static void d3d9_capture(IDirect3DDevice9 *device,
IDirect3DSurface9 *backbuffer)
{
if (capture_should_stop()) {
d3d9_free();
}
if (capture_should_init()) {
d3d9_init(device);
}
if (capture_ready()) {
if (data.device != device) {
d3d9_free();
return;
}
if (data.using_shtex)
d3d9_shtex_capture(backbuffer);
else
d3d9_shmem_capture(backbuffer);
}
}
/* this is used just in case Present calls PresentEx or vise versa. */
static int present_recurse = 0;
static inline void present_begin(IDirect3DDevice9 *device,
IDirect3DSurface9 *&backbuffer)
{
HRESULT hr;
if (!present_recurse) {
hr = get_backbuffer(device, &backbuffer);
if (FAILED(hr)) {
hlog_hr("d3d9_shmem_capture: Failed to get "
"backbuffer", hr);
}
if (!global_hook_info->capture_overlay) {
d3d9_capture(device, backbuffer);
}
}
present_recurse++;
}
static inline void present_end(IDirect3DDevice9 *device,
IDirect3DSurface9 *backbuffer)
{
present_recurse--;
if (!present_recurse) {
if (global_hook_info->capture_overlay) {
if (!present_recurse)
d3d9_capture(device, backbuffer);
}
if (backbuffer)
backbuffer->Release();
}
}
static bool hooked_reset = false;
static void setup_reset_hooks(IDirect3DDevice9 *device);
static HRESULT STDMETHODCALLTYPE hook_present(IDirect3DDevice9 *device,
CONST RECT *src_rect, CONST RECT *dst_rect,
HWND override_window, CONST RGNDATA *dirty_region)
{
IDirect3DSurface9 *backbuffer = nullptr;
HRESULT hr;
if (!hooked_reset)
setup_reset_hooks(device);
present_begin(device, backbuffer);
unhook(&present);
present_t call = (present_t)present.call_addr;
hr = call(device, src_rect, dst_rect, override_window, dirty_region);
rehook(&present);
present_end(device, backbuffer);
return hr;
}
static HRESULT STDMETHODCALLTYPE hook_present_ex(IDirect3DDevice9 *device,
CONST RECT *src_rect, CONST RECT *dst_rect,
HWND override_window, CONST RGNDATA *dirty_region, DWORD flags)
{
IDirect3DSurface9 *backbuffer = nullptr;
HRESULT hr;
if (!hooked_reset)
setup_reset_hooks(device);
present_begin(device, backbuffer);
unhook(&present_ex);
present_ex_t call = (present_ex_t)present_ex.call_addr;
hr = call(device, src_rect, dst_rect, override_window, dirty_region,
flags);
rehook(&present_ex);
present_end(device, backbuffer);
return hr;
}
static HRESULT STDMETHODCALLTYPE hook_present_swap(IDirect3DSwapChain9 *swap,
CONST RECT *src_rect, CONST RECT *dst_rect,
HWND override_window, CONST RGNDATA *dirty_region, DWORD flags)
{
IDirect3DSurface9 *backbuffer = nullptr;
IDirect3DDevice9 *device = nullptr;
HRESULT hr;
if (!present_recurse) {
hr = swap->GetDevice(&device);
if (SUCCEEDED(hr)) {
device->Release();
}
}
if (device) {
if (!hooked_reset)
setup_reset_hooks(device);
present_begin(device, backbuffer);
}
unhook(&present_swap);
present_swap_t call = (present_swap_t)present_swap.call_addr;
hr = call(swap, src_rect, dst_rect, override_window, dirty_region,
flags);
rehook(&present_swap);
if (device)
present_end(device, backbuffer);
return hr;
}
static HRESULT STDMETHODCALLTYPE hook_reset(IDirect3DDevice9 *device,
D3DPRESENT_PARAMETERS *params)
{
HRESULT hr;
if (capture_active())
d3d9_free();
unhook(&reset);
reset_t call = (reset_t)reset.call_addr;
hr = call(device, params);
rehook(&reset);
return hr;
}
static HRESULT STDMETHODCALLTYPE hook_reset_ex(IDirect3DDevice9 *device,
D3DPRESENT_PARAMETERS *params, D3DDISPLAYMODEEX *dmex)
{
HRESULT hr;
if (capture_active())
d3d9_free();
unhook(&reset_ex);
reset_ex_t call = (reset_ex_t)reset_ex.call_addr;
hr = call(device, params, dmex);
rehook(&reset_ex);
return hr;
}
static void setup_reset_hooks(IDirect3DDevice9 *device)
{
IDirect3DDevice9Ex *d3d9ex = nullptr;
uintptr_t *vtable = *(uintptr_t**)device;
HRESULT hr;
hook_init(&reset, (void*)vtable[16], (void*)hook_reset,
"IDirect3DDevice9::Reset");
rehook(&reset);
hr = device->QueryInterface(__uuidof(IDirect3DDevice9Ex),
(void**)&d3d9ex);
if (SUCCEEDED(hr)) {
hook_init(&reset_ex, (void*)vtable[132], (void*)hook_reset_ex,
"IDirect3DDevice9Ex::ResetEx");
rehook(&reset_ex);
d3d9ex->Release();
}
hooked_reset = true;
}
typedef HRESULT (WINAPI *d3d9create_ex_t)(UINT, IDirect3D9Ex**);
static bool manually_get_d3d9_addrs(HMODULE d3d9_module,
void **present_addr,
void **present_ex_addr,
void **present_swap_addr)
{
d3d9create_ex_t create_ex;
D3DPRESENT_PARAMETERS pp;
HRESULT hr;
IDirect3DDevice9Ex *device;
IDirect3D9Ex *d3d9ex;
hlog("D3D9 values invalid, manually obtaining");
create_ex = (d3d9create_ex_t)GetProcAddress(d3d9_module,
"Direct3DCreate9Ex");
if (!create_ex) {
hlog("Failed to load Direct3DCreate9Ex");
return false;
}
if (FAILED(create_ex(D3D_SDK_VERSION, &d3d9ex))) {
hlog("Failed to create D3D9 context");
return false;
}
memset(&pp, 0, sizeof(pp));
pp.Windowed = 1;
pp.SwapEffect = D3DSWAPEFFECT_FLIP;
pp.BackBufferFormat = D3DFMT_A8R8G8B8;
pp.BackBufferCount = 1;
pp.hDeviceWindow = (HWND)dummy_window;
pp.PresentationInterval = D3DPRESENT_INTERVAL_IMMEDIATE;
hr = d3d9ex->CreateDeviceEx(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL,
dummy_window,
D3DCREATE_HARDWARE_VERTEXPROCESSING |
D3DCREATE_NOWINDOWCHANGES, &pp, NULL, &device);
d3d9ex->Release();
if (SUCCEEDED(hr)) {
uintptr_t *vtable = *(uintptr_t**)device;
IDirect3DSwapChain9 *swap;
*present_addr = (void*)vtable[17];
*present_ex_addr = (void*)vtable[121];
hr = device->GetSwapChain(0, &swap);
if (SUCCEEDED(hr)) {
vtable = *(uintptr_t**)swap;
*present_swap_addr = (void*)vtable[3];
swap->Release();
}
device->Release();
} else {
hlog("Failed to create D3D9 device");
return false;
}
return true;
}
bool hook_d3d9(void)
{
HMODULE d3d9_module = get_system_module("d3d9.dll");
uint32_t d3d9_size;
void *present_addr = nullptr;
void *present_ex_addr = nullptr;
void *present_swap_addr = nullptr;
if (!d3d9_module) {
return false;
}
d3d9_size = module_size(d3d9_module);
if (global_hook_info->offsets.d3d9.present < d3d9_size &&
global_hook_info->offsets.d3d9.present_ex < d3d9_size &&
global_hook_info->offsets.d3d9.present_swap < d3d9_size) {
present_addr = get_offset_addr(d3d9_module,
global_hook_info->offsets.d3d9.present);
present_ex_addr = get_offset_addr(d3d9_module,
global_hook_info->offsets.d3d9.present_ex);
present_swap_addr = get_offset_addr(d3d9_module,
global_hook_info->offsets.d3d9.present_swap);
} else {
if (!dummy_window) {
return false;
}
if (!manually_get_d3d9_addrs(d3d9_module,
&present_addr,
&present_ex_addr,
&present_swap_addr)) {
hlog("Failed to get D3D9 values");
return true;
}
}
if (!present_addr && !present_ex_addr && !present_swap_addr) {
hlog("Invalid D3D9 values");
return true;
}
if (present_swap_addr) {
hook_init(&present_swap, present_swap_addr,
(void*)hook_present_swap,
"IDirect3DSwapChain9::Present");
rehook(&present_swap);
}
if (present_ex_addr) {
hook_init(&present_ex, present_ex_addr,
(void*)hook_present_ex,
"IDirect3DDevice9Ex::PresentEx");
rehook(&present_ex);
}
if (present_addr) {
hook_init(&present, present_addr,
(void*)hook_present,
"IDirect3DDevice9::Present");
rehook(&present);
}
hlog("Hooked D3D9");
return true;
}