/*
* (C) 2003-2006 Gabest
* (C) 2006-2014 see Authors.txt
*
* This file is part of MPC-HC.
*
* MPC-HC is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* MPC-HC is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see .
*
*/
#include "stdafx.h"
#include "DX7SubPic.h"
#include
//
// CDX7SubPic
//
CDX7SubPic::CDX7SubPic(IDirect3DDevice7* pD3DDev, IDirectDrawSurface7* pSurface)
: m_pD3DDev(pD3DDev)
, m_pSurface(pSurface)
{
DDSURFACEDESC2 ddsd;
INITDDSTRUCT(ddsd);
if (SUCCEEDED(m_pSurface->GetSurfaceDesc(&ddsd))) {
m_maxsize.SetSize(ddsd.dwWidth, ddsd.dwHeight);
m_rcDirty.SetRect(0, 0, ddsd.dwWidth, ddsd.dwHeight);
}
}
// ISubPic
STDMETHODIMP_(void*) CDX7SubPic::GetObject()
{
return (IDirectDrawSurface7*)m_pSurface;
}
STDMETHODIMP CDX7SubPic::GetDesc(SubPicDesc& spd)
{
DDSURFACEDESC2 ddsd;
INITDDSTRUCT(ddsd);
if (FAILED(m_pSurface->GetSurfaceDesc(&ddsd))) {
return E_FAIL;
}
spd.type = 0;
spd.w = m_size.cx;
spd.h = m_size.cy;
spd.bpp = (WORD)ddsd.ddpfPixelFormat.dwRGBBitCount;
spd.pitch = ddsd.lPitch;
spd.bits = (BYTE*)ddsd.lpSurface; // should be NULL
spd.vidrect = m_vidrect;
return S_OK;
}
STDMETHODIMP CDX7SubPic::CopyTo(ISubPic* pSubPic)
{
HRESULT hr;
if (FAILED(hr = __super::CopyTo(pSubPic))) {
return hr;
}
CPoint p = m_rcDirty.TopLeft();
hr = m_pD3DDev->Load((IDirectDrawSurface7*)pSubPic->GetObject(), &p, m_pSurface, m_rcDirty, 0);
return SUCCEEDED(hr) ? S_OK : E_FAIL;
}
STDMETHODIMP CDX7SubPic::ClearDirtyRect(DWORD color)
{
if (m_rcDirty.IsRectEmpty()) {
return S_FALSE;
}
DDBLTFX fx;
INITDDSTRUCT(fx);
fx.dwFillColor = color;
m_pSurface->Blt(&m_rcDirty, nullptr, nullptr, DDBLT_WAIT | DDBLT_COLORFILL, &fx);
m_rcDirty.SetRectEmpty();
return S_OK;
}
STDMETHODIMP CDX7SubPic::Lock(SubPicDesc& spd)
{
DDSURFACEDESC2 ddsd;
INITDDSTRUCT(ddsd);
if (FAILED(m_pSurface->Lock(nullptr, &ddsd, DDLOCK_SURFACEMEMORYPTR | DDLOCK_WAIT, nullptr))) {
return E_FAIL;
}
spd.type = 0;
spd.w = m_size.cx;
spd.h = m_size.cy;
spd.bpp = (WORD)ddsd.ddpfPixelFormat.dwRGBBitCount;
spd.pitch = ddsd.lPitch;
spd.bits = (BYTE*)ddsd.lpSurface;
spd.vidrect = m_vidrect;
return S_OK;
}
STDMETHODIMP CDX7SubPic::Unlock(RECT* pDirtyRect)
{
m_pSurface->Unlock(nullptr);
if (pDirtyRect) {
m_rcDirty = *pDirtyRect;
m_rcDirty.InflateRect(1, 1);
m_rcDirty &= CRect(CPoint(0, 0), m_size);
} else {
m_rcDirty = CRect(CPoint(0, 0), m_size);
}
return S_OK;
}
STDMETHODIMP CDX7SubPic::AlphaBlt(RECT* pSrc, RECT* pDst, SubPicDesc* pTarget)
{
ASSERT(pTarget == nullptr);
if (!m_pD3DDev || !m_pSurface || !pSrc || !pDst) {
return E_POINTER;
}
CRect src(*pSrc), dst(*pDst);
DDSURFACEDESC2 ddsd;
INITDDSTRUCT(ddsd);
if (FAILED(m_pSurface->GetSurfaceDesc(&ddsd))) {
return E_FAIL;
}
float w = (float)ddsd.dwWidth;
float h = (float)ddsd.dwHeight;
// Be careful with the code that follows. Some compilers (e.g. Visual Studio 2012) used to miscompile
// it in some cases (namely x64 with optimizations /O2 /Ot). This bug led pVertices not to be correctly
// initialized and thus the subtitles weren't shown.
struct {
float x, y, z, rhw;
float tu, tv;
} pVertices[] = {
{(float)dst.left, (float)dst.top, 0.5f, 2.0f, (float)src.left / w, (float)src.top / h},
{(float)dst.right, (float)dst.top, 0.5f, 2.0f, (float)src.right / w, (float)src.top / h},
{(float)dst.left, (float)dst.bottom, 0.5f, 2.0f, (float)src.left / w, (float)src.bottom / h},
{(float)dst.right, (float)dst.bottom, 0.5f, 2.0f, (float)src.right / w, (float)src.bottom / h},
};
for (size_t i = 0; i < _countof(pVertices); i++) {
pVertices[i].x -= 0.5f;
pVertices[i].y -= 0.5f;
}
m_pD3DDev->SetTexture(0, m_pSurface);
m_pD3DDev->SetRenderState(D3DRENDERSTATE_CULLMODE, D3DCULL_NONE);
m_pD3DDev->SetRenderState(D3DRENDERSTATE_LIGHTING, FALSE);
m_pD3DDev->SetRenderState(D3DRENDERSTATE_BLENDENABLE, TRUE);
m_pD3DDev->SetRenderState(D3DRENDERSTATE_SRCBLEND, D3DBLEND_ONE); // pre-multiplied src and ...
m_pD3DDev->SetRenderState(D3DRENDERSTATE_DESTBLEND, m_bInvAlpha ? D3DBLEND_INVSRCALPHA : D3DBLEND_SRCALPHA); // ... inverse alpha channel for dst
m_pD3DDev->SetTextureStageState(0, D3DTSS_COLOROP, D3DTOP_SELECTARG1);
m_pD3DDev->SetTextureStageState(0, D3DTSS_COLORARG1, D3DTA_TEXTURE);
m_pD3DDev->SetTextureStageState(0, D3DTSS_ALPHAARG1, D3DTA_TEXTURE);
if (src == dst) {
m_pD3DDev->SetTextureStageState(0, D3DTSS_MAGFILTER, D3DTFG_POINT);
m_pD3DDev->SetTextureStageState(0, D3DTSS_MINFILTER, D3DTFG_POINT);
} else {
m_pD3DDev->SetTextureStageState(0, D3DTSS_MAGFILTER, D3DTFG_LINEAR);
m_pD3DDev->SetTextureStageState(0, D3DTSS_MINFILTER, D3DTFG_LINEAR);
}
m_pD3DDev->SetTextureStageState(0, D3DTSS_MIPFILTER, D3DTFP_NONE);
m_pD3DDev->SetTextureStageState(0, D3DTSS_ADDRESS, D3DTADDRESS_CLAMP);
/*//
D3DDEVICEDESC7 d3ddevdesc;
m_pD3DDev->GetCaps(&d3ddevdesc);
if (d3ddevdesc.dpcTriCaps.dwAlphaCmpCaps & D3DPCMPCAPS_LESS)
{
m_pD3DDev->SetRenderState(D3DRENDERSTATE_ALPHAREF, (DWORD)0x000000FE);
m_pD3DDev->SetRenderState(D3DRENDERSTATE_ALPHATESTENABLE, TRUE);
m_pD3DDev->SetRenderState(D3DRENDERSTATE_ALPHAFUNC, D3DPCMPCAPS_LESS);
}
*///
if (FAILED(m_pD3DDev->BeginScene())) {
return E_FAIL;
}
m_pD3DDev->DrawPrimitive(D3DPT_TRIANGLESTRIP,
D3DFVF_XYZRHW | D3DFVF_TEX1,
pVertices, 4, D3DDP_WAIT);
m_pD3DDev->EndScene();
m_pD3DDev->SetTexture(0, nullptr);
return S_OK;
}
//
// CDX7SubPicAllocator
//
CDX7SubPicAllocator::CDX7SubPicAllocator(IDirect3DDevice7* pD3DDev, SIZE maxsize)
: CSubPicAllocatorImpl(maxsize, true)
, m_pD3DDev(pD3DDev)
, m_maxsize(maxsize)
{
}
// ISubPicAllocator
STDMETHODIMP CDX7SubPicAllocator::ChangeDevice(IUnknown* pDev)
{
CComQIPtr pD3DDev = pDev;
CheckPointer(pD3DDev, E_NOINTERFACE);
CAutoLock cAutoLock(this);
HRESULT hr = S_FALSE;
if (m_pD3DDev != pD3DDev) {
m_pD3DDev = pD3DDev;
hr = __super::ChangeDevice(pDev);
}
return hr;
}
STDMETHODIMP CDX7SubPicAllocator::SetMaxTextureSize(SIZE maxTextureSize)
{
CAutoLock cAutoLock(this);
if (m_maxsize != maxTextureSize) {
m_maxsize = maxTextureSize;
}
return SetCurSize(m_maxsize);
}
// ISubPicAllocatorImpl
bool CDX7SubPicAllocator::Alloc(bool fStatic, ISubPic** ppSubPic)
{
if (!ppSubPic) {
return false;
}
if (m_maxsize.cx <= 0 || m_maxsize.cy <= 0) {
return false;
}
CAutoLock cAutoLock(this);
DDSURFACEDESC2 ddsd;
INITDDSTRUCT(ddsd);
ddsd.dwFlags = DDSD_CAPS | DDSD_WIDTH | DDSD_HEIGHT | DDSD_PIXELFORMAT;
ddsd.ddsCaps.dwCaps = DDSCAPS_TEXTURE | (fStatic ? DDSCAPS_SYSTEMMEMORY : 0);
ddsd.ddsCaps.dwCaps2 = fStatic ? 0 : (DDSCAPS2_TEXTUREMANAGE | DDSCAPS2_HINTSTATIC);
ddsd.dwWidth = m_maxsize.cx;
ddsd.dwHeight = m_maxsize.cy;
ddsd.ddpfPixelFormat.dwSize = sizeof(DDPIXELFORMAT);
ddsd.ddpfPixelFormat.dwFlags = DDPF_RGB | DDPF_ALPHAPIXELS;
ddsd.ddpfPixelFormat.dwRGBBitCount = 32;
ddsd.ddpfPixelFormat.dwRGBAlphaBitMask = 0xFF000000;
ddsd.ddpfPixelFormat.dwRBitMask = 0x00FF0000;
ddsd.ddpfPixelFormat.dwGBitMask = 0x0000FF00;
ddsd.ddpfPixelFormat.dwBBitMask = 0x000000FF;
CComPtr pD3D;
CComQIPtr pDD;
if (FAILED(m_pD3DDev->GetDirect3D(&pD3D)) || !pD3D || !(pDD = pD3D)) {
return false;
}
CComPtr pSurface;
if (FAILED(pDD->CreateSurface(&ddsd, &pSurface, nullptr))) {
return false;
}
try {
*ppSubPic = DEBUG_NEW CDX7SubPic(m_pD3DDev, pSurface);
} catch (CMemoryException* e) {
e->Delete();
return false;
}
(*ppSubPic)->AddRef();
return true;
}