forked from Dniel97/segatools
1b93551a41
This is distinct from capnhook's hooklib, although the intent is the same. Hopefully these two libraries sharing a name won't get too confusing...
109 lines
2.2 KiB
C
109 lines
2.2 KiB
C
#include <windows.h>
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#include <d3d9.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include "hook/com-proxy.h"
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#include "hook/table.h"
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#include "hooklib/gfx.h"
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#include "util/dprintf.h"
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static HRESULT STDMETHODCALLTYPE my_CreateDevice(
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IDirect3D9 *self,
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UINT adapter,
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D3DDEVTYPE type,
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HWND hwnd,
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DWORD flags,
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D3DPRESENT_PARAMETERS *pp,
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IDirect3DDevice9 **pdev);
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static IDirect3D9 * WINAPI my_Direct3DCreate9(UINT sdk_ver);
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static IDirect3D9 * (WINAPI *next_Direct3DCreate9)(UINT sdk_ver);
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static bool gfx_windowed;
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static const struct hook_symbol gfx_hooks[] = {
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{
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.name = "Direct3DCreate9",
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.patch = my_Direct3DCreate9,
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.link = (void **) &next_Direct3DCreate9
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},
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};
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void gfx_hook_init(void)
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{
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hook_table_apply(NULL, "d3d9.dll", gfx_hooks, _countof(gfx_hooks));
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}
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void gfx_set_windowed(void)
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{
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gfx_windowed = true;
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}
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static IDirect3D9 * WINAPI my_Direct3DCreate9(UINT sdk_ver)
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{
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struct com_proxy *proxy;
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IDirect3D9Vtbl *vtbl;
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IDirect3D9 *api;
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HRESULT hr;
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dprintf("Direct3DCreate9 hook hit\n");
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api = next_Direct3DCreate9(sdk_ver);
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if (api == NULL) {
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dprintf("next_Direct3DCreate9 returned NULL\n");
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goto fail;
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}
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hr = com_proxy_wrap(&proxy, api, sizeof(*api->lpVtbl));
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if (FAILED(hr)) {
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dprintf("com_proxy_wrap returned %x\n", (int) hr);
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goto fail;
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}
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vtbl = proxy->vptr;
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vtbl->CreateDevice = my_CreateDevice;
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return (IDirect3D9 *) proxy;
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fail:
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if (api != NULL) {
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IDirect3D9_Release(api);
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}
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return NULL;
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}
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static HRESULT STDMETHODCALLTYPE my_CreateDevice(
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IDirect3D9 *self,
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UINT adapter,
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D3DDEVTYPE type,
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HWND hwnd,
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DWORD flags,
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D3DPRESENT_PARAMETERS *pp,
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IDirect3DDevice9 **pdev)
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{
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struct com_proxy *proxy;
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IDirect3D9 *real;
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dprintf("IDirect3D9::CreateDevice hook hit\n");
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proxy = com_proxy_downcast(self);
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real = proxy->real;
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if (gfx_windowed) {
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pp->Windowed = TRUE;
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pp->FullScreen_RefreshRateInHz = 0;
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}
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return IDirect3D9_CreateDevice(real, adapter, type, hwnd, flags, pp, pdev);
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}
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