C++ D3DContext类代码示例

/*
 * Class:     sun_java2d_d3d_D3DGraphicsDevice
 * Method:    getAvailableAcceleratedMemoryNative
 * Signature: (I)J
 */
JNIEXPORT jlong JNICALL
Java_sun_java2d_d3d_D3DGraphicsDevice_getAvailableAcceleratedMemoryNative
  (JNIEnv *env, jclass gdc, jint gdiScreen)
{
    // REMIND: looks like Direct3D provides information about texture memory
    // only via IDirect3DDevice9::GetAvailableTextureMem, however, it
    // seems to report the same amount as direct draw used to.
    HRESULT res;
    D3DPipelineManager *pMgr;
    D3DContext *pCtx;
    IDirect3DDevice9 *pd3dDevice;
    UINT adapter;

    J2dTraceLn(J2D_TRACE_INFO, "D3DGD_getAvailableAcceleratedMemoryNative");

    RETURN_STATUS_IF_NULL(pMgr = D3DPipelineManager::GetInstance(), 0L);
    adapter = pMgr->GetAdapterOrdinalForScreen(gdiScreen);

    if (FAILED(res = pMgr->GetD3DContext(adapter, &pCtx))) {
        D3DRQ_MarkLostIfNeeded(res, D3DRQ_GetCurrentDestination());
        return 0L;
    }
    RETURN_STATUS_IF_NULL(pd3dDevice = pCtx->Get3DDevice(), 0L);

    UINT mem = pd3dDevice->GetAvailableTextureMem();
    J2dTraceLn1(J2D_TRACE_VERBOSE, "  available memory=%d", mem);
    return mem;
}

/*
 * Class:     sun_java2d_d3d_D3DSurfaceData
 * Method:    dbGetPixelNative
 * Signature: (JII)I
 */
JNIEXPORT jint JNICALL Java_sun_java2d_d3d_D3DSurfaceData_dbGetPixelNative
  (JNIEnv *env, jclass clazz, jlong pData, jint x, jint y)
{
    HRESULT res;
    D3DSDOps *d3dsdo;
    D3DContext *pCtx;
    D3DPipelineManager *pMgr;
    D3DResource *pLockableRes;
    jint pixel = 0;

    J2dTraceLn(J2D_TRACE_INFO, "D3DSurfaceData_dbGetPixelNative");

    RETURN_STATUS_IF_NULL(d3dsdo = (D3DSDOps *)jlong_to_ptr(pData), pixel);
    RETURN_STATUS_IF_NULL(d3dsdo->pResource, pixel);
    RETURN_STATUS_IF_NULL(pMgr = D3DPipelineManager::GetInstance(), pixel);

    if (FAILED(res = pMgr->GetD3DContext(d3dsdo->adapter, &pCtx))) {
        D3DRQ_MarkLostIfNeeded(res, d3dsdo);
        return pixel;
    }
    RETURN_STATUS_IF_NULL(pCtx->GetResourceManager(), 0);

    IDirect3DDevice9 *pd3dDevice = pCtx->Get3DDevice();
    IDirect3DSurface9 *pSrc = d3dsdo->pResource->GetSurface();
    D3DFORMAT srcFmt = d3dsdo->pResource->GetDesc()->Format;

    pCtx->UpdateState(STATE_OTHEROP);

    res = pCtx->GetResourceManager()->
            GetLockableRTSurface(1, 1, srcFmt, &pLockableRes);
    if (SUCCEEDED(res)) {
        IDirect3DSurface9 *pTmpSurface;
        RECT srcRect = { x, y, x+1, y+1};
        RECT dstRect = { 0l, 0l, 1, 1 };

        pTmpSurface = pLockableRes->GetSurface();
        res = pd3dDevice->StretchRect(pSrc, &srcRect, pTmpSurface, &dstRect,
                                      D3DTEXF_NONE);
        if (SUCCEEDED(res)) {
            D3DLOCKED_RECT lRect;

            res = pTmpSurface->LockRect(&lRect, &dstRect, D3DLOCK_NOSYSLOCK);
            if (SUCCEEDED(res)) {
                if (srcFmt == D3DFMT_X8R8G8B8) {
                    pixel = *(jint*)lRect.pBits;
                } else {
                    pixel = *(unsigned short*)lRect.pBits;
                }
                pTmpSurface->UnlockRect();
            }
        }
    }
    D3DRQ_MarkLostIfNeeded(res, d3dsdo);

    return pixel;
}

/*
 * Class:     sun_java2d_d3d_D3DGraphicsDevice
 * Method:    getDeviceCapsNative
 * Signature: (I)I
 */
JNIEXPORT jint JNICALL
Java_sun_java2d_d3d_D3DGraphicsDevice_getDeviceCapsNative
  (JNIEnv *env, jclass d3dsdc, jint gdiScreen)
{
    D3DPipelineManager *pMgr;
    D3DContext *pCtx;
    UINT adapter;

    J2dRlsTraceLn(J2D_TRACE_INFO, "D3DGD_getDeviceCapsNative");

    pMgr = D3DPipelineManager::GetInstance();
    RETURN_STATUS_IF_NULL(pMgr, CAPS_EMPTY);
    adapter = pMgr->GetAdapterOrdinalForScreen(gdiScreen);

    if (FAILED(pMgr->GetD3DContext(adapter, &pCtx))) {
        J2dRlsTraceLn1(J2D_TRACE_ERROR,
                      "D3DGD_getDeviceCapsNative: device %d disabled", adapter);
        return CAPS_EMPTY;
    }
    return pCtx->GetContextCaps();
}

void D3DSD_Flush(void *pData)
{
    J2dTraceLn(J2D_TRACE_INFO, "D3DSD_Flush");
    RETURN_IF_NULL(pData);

    D3DSDOps *d3dsdo = (D3DSDOps*)pData;
    if (d3dsdo->pResource != NULL) {
        D3DContext *pCtx;
        D3DPipelineManager *pMgr;

        d3dsdo->pResource->SetSDOps(NULL);

        if ((pMgr = D3DPipelineManager::GetInstance()) != NULL &&
            SUCCEEDED(pMgr->GetD3DContext(d3dsdo->adapter, &pCtx)))
        {
            if (pCtx->GetResourceManager()) {
                pCtx->GetResourceManager()->ReleaseResource(d3dsdo->pResource);
            }
        }
        d3dsdo->pResource = NULL;
    }
}