raze-gles/source/common/platform/win32/win32polyvideo.cpp

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#include <assert.h>
#include "hardware.h"
#include "engineerrors.h"
#include <Windows.h>
#ifdef HAVE_SOFTPOLY
EXTERN_CVAR(Bool, vid_vsync)
bool ViewportLinearScale();
extern HWND Window;
#include <d3d9.h>
#pragma comment(lib, "d3d9.lib")
#ifndef D3DPRESENT_FORCEIMMEDIATE
#define D3DPRESENT_FORCEIMMEDIATE 0x00000100L // MinGW
#endif
namespace
{
int SrcWidth = 0;
int SrcHeight = 0;
int ClientWidth = 0;
int ClientHeight = 0;
bool CurrentVSync = false;
IDirect3D9Ex *d3d9 = nullptr;
IDirect3DDevice9Ex *device = nullptr;
IDirect3DSurface9* surface = nullptr;
}
void I_PolyPresentInit()
{
Direct3DCreate9Ex(D3D_SDK_VERSION, &d3d9);
if (!d3d9)
{
I_FatalError("Direct3DCreate9 failed");
}
RECT rect = {};
GetClientRect(Window, &rect);
ClientWidth = rect.right;
ClientHeight = rect.bottom;
D3DPRESENT_PARAMETERS pp = {};
pp.Windowed = true;
pp.SwapEffect = D3DSWAPEFFECT_FLIPEX;
pp.BackBufferWidth = ClientWidth;
pp.BackBufferHeight = ClientHeight;
pp.BackBufferCount = 1;
pp.hDeviceWindow = Window;
pp.PresentationInterval = CurrentVSync ? D3DPRESENT_INTERVAL_DEFAULT : D3DPRESENT_INTERVAL_IMMEDIATE;
HRESULT result = d3d9->CreateDeviceEx(D3DADAPTER_DEFAULT, D3DDEVTYPE_HAL, Window, D3DCREATE_HARDWARE_VERTEXPROCESSING, &pp, nullptr, &device);
if (FAILED(result))
{
I_FatalError("IDirect3D9.CreateDevice failed");
}
}
uint8_t *I_PolyPresentLock(int w, int h, bool vsync, int &pitch)
{
HRESULT result;
RECT rect = {};
GetClientRect(Window, &rect);
if (rect.right != ClientWidth || rect.bottom != ClientHeight || CurrentVSync != vsync)
{
if (surface)
{
surface->Release();
surface = nullptr;
}
CurrentVSync = vsync;
ClientWidth = rect.right;
ClientHeight = rect.bottom;
D3DPRESENT_PARAMETERS pp = {};
pp.Windowed = true;
pp.SwapEffect = D3DSWAPEFFECT_FLIPEX;
pp.BackBufferWidth = ClientWidth;
pp.BackBufferHeight = ClientHeight;
pp.BackBufferCount = 1;
pp.hDeviceWindow = Window;
pp.PresentationInterval = CurrentVSync ? D3DPRESENT_INTERVAL_DEFAULT : D3DPRESENT_INTERVAL_IMMEDIATE;
device->Reset(&pp);
}
if (SrcWidth != w || SrcHeight != h || !surface)
{
if (surface)
{
surface->Release();
surface = nullptr;
}
SrcWidth = w;
SrcHeight = h;
result = device->CreateOffscreenPlainSurface(SrcWidth, SrcHeight, D3DFMT_A8R8G8B8, D3DPOOL_DEFAULT, &surface, 0);
if (FAILED(result))
{
I_FatalError("IDirect3DDevice9.CreateOffscreenPlainSurface failed");
}
}
D3DLOCKED_RECT lockrect = {};
result = surface->LockRect(&lockrect, nullptr, D3DLOCK_DISCARD);
if (FAILED(result))
{
pitch = 0;
return nullptr;
}
pitch = lockrect.Pitch;
return (uint8_t*)lockrect.pBits;
}
void I_PolyPresentUnlock(int x, int y, int width, int height)
{
surface->UnlockRect();
IDirect3DSurface9 *backbuffer = nullptr;
HRESULT result = device->GetBackBuffer(0, 0, D3DBACKBUFFER_TYPE_MONO, &backbuffer);
if (FAILED(result))
return;
result = device->BeginScene();
if (SUCCEEDED(result))
{
int count = 0;
D3DRECT clearrects[4];
if (y > 0)
{
clearrects[count].x1 = 0;
clearrects[count].y1 = 0;
clearrects[count].x2 = ClientWidth;
clearrects[count].y2 = y;
count++;
}
if (y + height < ClientHeight)
{
clearrects[count].x1 = 0;
clearrects[count].y1 = y + height;
clearrects[count].x2 = ClientWidth;
clearrects[count].y2 = ClientHeight;
count++;
}
if (x > 0)
{
clearrects[count].x1 = 0;
clearrects[count].y1 = y;
clearrects[count].x2 = x;
clearrects[count].y2 = y + height;
count++;
}
if (x + width < ClientWidth)
{
clearrects[count].x1 = x + width;
clearrects[count].y1 = y;
clearrects[count].x2 = ClientWidth;
clearrects[count].y2 = y + height;
count++;
}
if (count > 0)
device->Clear(count, clearrects, D3DCLEAR_TARGET, 0, 0.0f, 0);
RECT srcrect = {}, dstrect = {};
srcrect.right = SrcWidth;
srcrect.bottom = SrcHeight;
dstrect.left = x;
dstrect.top = y;
dstrect.right = x + width;
dstrect.bottom = y + height;
if (ViewportLinearScale())
device->StretchRect(surface, &srcrect, backbuffer, &dstrect, D3DTEXF_LINEAR);
else
device->StretchRect(surface, &srcrect, backbuffer, &dstrect, D3DTEXF_POINT);
result = device->EndScene();
if (SUCCEEDED(result))
device->PresentEx(nullptr, nullptr, 0, nullptr, CurrentVSync ? 0 : D3DPRESENT_FORCEIMMEDIATE);
}
backbuffer->Release();
}
void I_PolyPresentDeinit()
{
if (surface) surface->Release();
if (device) device->Release();
if (d3d9) d3d9->Release();
}
#endif