87 lines
3.6 KiB
C
87 lines
3.6 KiB
C
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#pragma once
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// this file uses the C++ interface of Direct3D9
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#ifdef CINTERFACE
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#undef CINTERFACE
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#endif
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#include <atomic>
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#include <d3d9.h>
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#include "util/logging.h"
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struct FakeIDirect3DSwapChain9 : IDirect3DSwapChain9Ex {
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FakeIDirect3DSwapChain9(IDirect3DDevice9 *pDev, D3DPRESENT_PARAMETERS *present_params, bool is_d3d9ex) :
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pDev(pDev), is_d3d9ex(is_d3d9ex)
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{
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// copy presentation parameters
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memcpy(&this->present_params, present_params, sizeof(this->present_params));
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// From MSDN https://docs.microsoft.com/en-us/windows/win32/direct3d9/d3dpresent-parameters:
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// Values of 0 are treated as 1
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if (this->present_params.BackBufferCount == 0) {
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this->present_params.BackBufferCount = 1;
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}
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for (size_t i = 0; i < this->present_params.BackBufferCount; i++) {
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IDirect3DSurface9 *render_target = nullptr;
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HRESULT hr = pDev->CreateRenderTarget(
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this->present_params.BackBufferWidth,
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this->present_params.BackBufferHeight,
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this->present_params.BackBufferFormat,
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this->present_params.MultiSampleType,
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this->present_params.MultiSampleQuality,
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FALSE,
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&render_target,
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nullptr
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);
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if (SUCCEEDED(hr)) {
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this->render_targets.push_back(render_target);
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} else {
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log_warning("graphics::d3d9", "failed to create backing render target for fake swap chain, hr={}",
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FMT_HRESULT(hr));
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}
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}
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}
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FakeIDirect3DSwapChain9(const FakeIDirect3DSwapChain9 &) = delete;
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FakeIDirect3DSwapChain9 &operator=(const FakeIDirect3DSwapChain9 &) = delete;
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virtual ~FakeIDirect3DSwapChain9(void) {
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for (auto &render_target : this->render_targets) {
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render_target->Release();
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}
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}
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#pragma region IUnknown
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virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void **ppvObj) override;
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virtual ULONG STDMETHODCALLTYPE AddRef(void) override;
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virtual ULONG STDMETHODCALLTYPE Release(void) override;
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#pragma endregion
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#pragma region IDirect3DSwapChain9
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virtual HRESULT STDMETHODCALLTYPE Present(const RECT *pSourceRect, const RECT *pDestRect, HWND hDestWindowOverride, const RGNDATA *pDirtyRegion, DWORD dwFlags) override;
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virtual HRESULT STDMETHODCALLTYPE GetFrontBufferData(IDirect3DSurface9 *pDestSurface) override;
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virtual HRESULT STDMETHODCALLTYPE GetBackBuffer(UINT iBackBuffer, D3DBACKBUFFER_TYPE Type, IDirect3DSurface9 **ppBackBuffer) override;
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virtual HRESULT STDMETHODCALLTYPE GetRasterStatus(D3DRASTER_STATUS *pRasterStatus) override;
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virtual HRESULT STDMETHODCALLTYPE GetDisplayMode(D3DDISPLAYMODE *pMode) override;
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virtual HRESULT STDMETHODCALLTYPE GetDevice(IDirect3DDevice9 **ppDevice) override;
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virtual HRESULT STDMETHODCALLTYPE GetPresentParameters(D3DPRESENT_PARAMETERS *pPresentationParameters) override;
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#pragma endregion
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#pragma region IDirect3DSwapChain9Ex
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virtual HRESULT STDMETHODCALLTYPE GetLastPresentCount(UINT *pLastPresentCount) override;
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virtual HRESULT STDMETHODCALLTYPE GetPresentStats(D3DPRESENTSTATS *pPresentationStatistics) override;
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virtual HRESULT STDMETHODCALLTYPE GetDisplayModeEx(D3DDISPLAYMODEEX *pMode, D3DDISPLAYROTATION *pRotation) override;
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#pragma endregion
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IDirect3DDevice9 *const pDev;
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bool is_d3d9ex;
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std::atomic<ULONG> ref_cnt = 1;
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D3DPRESENT_PARAMETERS present_params {};
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std::vector<IDirect3DSurface9 *> render_targets;
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};
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