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Java example source code file (D3DRenderQueue.cpp)

This example Java source code file (D3DRenderQueue.cpp) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

continue_if_null, d3dcontext, d3drq_flushbuffer, d3drq_marklostifneeded, d3dsdops, extract_boolean, j2dtraceln, next_boolean, next_double, next_float, next_int, next_long, null, skip_bytes

The D3DRenderQueue.cpp Java example source code

/*
 * Copyright (c) 2007, 2008, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

#include "D3DPipeline.h"
#include <malloc.h>
#include "sun_java2d_pipe_BufferedOpCodes.h"

#include "jlong.h"
#include "D3DBlitLoops.h"
#include "D3DBufImgOps.h"
#include "D3DPipelineManager.h"
#include "D3DContext.h"
#include "D3DMaskBlit.h"
#include "D3DMaskFill.h"
#include "D3DPaints.h"
#include "D3DRenderQueue.h"
#include "D3DRenderer.h"
#include "D3DSurfaceData.h"
#include "D3DTextRenderer.h"
#include "Trace.h"
#include "awt_Toolkit.h"

BOOL DWMIsCompositionEnabled();

/**
 * References to the "current" context and destination surface.
 */
static D3DContext *d3dc = NULL;
static D3DSDOps *dstOps = NULL;
static BOOL bLostDevices = FALSE;

typedef struct {
    byte *buffer;
    int limit;
    jobject runnable;
} FlushBufferStruct;

HRESULT
D3DRQ_SwapBuffers(D3DPipelineManager *pMgr, D3DSDOps *d3dsdo,
                  int x1, int y1, int x2, int y2)
{
    HRESULT res;
    D3DContext *pCtx;
    IDirect3DSwapChain9 *pSwapChain;
    RECT srcRect, dstRect, *pSrcRect, *pDstRect;

    J2dTraceLn(J2D_TRACE_INFO, "D3DRQ_SwapBuffers");
    J2dTraceLn4(J2D_TRACE_VERBOSE, "  x1=%d y1=%d x2=%d y2=%d",
                x1, y1, x2, y2);

    RETURN_STATUS_IF_NULL(d3dsdo, E_FAIL);
    RETURN_STATUS_IF_NULL(d3dsdo->pResource, E_FAIL);
    RETURN_STATUS_IF_NULL(pSwapChain=d3dsdo->pResource->GetSwapChain(), E_FAIL);

    pCtx = D3DRQ_GetCurrentContext();
    if (pCtx != NULL) {
        // flush the current vertex queue here, just in case
        res = d3dc->FlushVertexQueue();
        D3DRQ_MarkLostIfNeeded(res, dstOps);
        pCtx = NULL;
    }
    // end scene for this destination
    res = pMgr->GetD3DContext(d3dsdo->adapter, &pCtx);
    RETURN_STATUS_IF_FAILED(res);

    pCtx->EndScene();

    // This is a workaround for what apparently is a DWM bug.
    // If the dimensions of the back-buffer don't match the dimensions of
    // the window, Present() will flash the whole window with black.
    // The workaround is to detect this situation and not do a present.
    // It is ok to do so since a repaint event is coming due to the resize that
    // just happened.
    //
    // REMIND: this will need to be updated if we switch to creating
    // back-buffers of the size of the client area instead of the whole window
    // (use GetClientRect() instead of GetWindowRect()).
    if (DWMIsCompositionEnabled()) {
        RECT r;
        D3DPRESENT_PARAMETERS params;

        pSwapChain->GetPresentParameters(śms);
        GetWindowRect(params.hDeviceWindow, &r);
        int ww = r.right - r.left;
        int wh = r.bottom - r.top;
        if (ww != params.BackBufferWidth || wh != params.BackBufferHeight) {
            J2dTraceLn4(J2D_TRACE_WARNING,
                "D3DRQ_SwapBuffers: surface/window dimensions mismatch: "\
                "win: w=%d h=%d, bb: w=%d h=%d",
                ww, wh, params.BackBufferWidth, params.BackBufferHeight);

            return S_OK;
        }
    }

    if (d3dsdo->swapEffect == D3DSWAPEFFECT_COPY) {
        J2dTraceLn(J2D_TRACE_VERBOSE, "  D3DSWAPEFFECT_COPY");
        if (x1 < 0) x1 = 0;
        if (y1 < 0) y1 = 0;
        if (x2 > d3dsdo->width)  x2 = d3dsdo->width;
        if (y2 > d3dsdo->height) y2 = d3dsdo->height;
        if (x2 <= x1 || y2 <= y1) {
            // nothing to present
            return S_OK;
        }
        srcRect.left = x1;
        srcRect.top = y1;
        srcRect.right = x2;
        srcRect.bottom = y2;

        dstRect = srcRect;

        pSrcRect = &srcRect;
        pDstRect = &dstRect;
        // only offset in windowed mode
        if (pCtx!= NULL && pCtx->GetPresentationParams()->Windowed) {
            OffsetRect(pDstRect, d3dsdo->xoff, d3dsdo->yoff);
        } else {
            // some boards (Nvidia) have problems with copy strategy and
            // non-null src/dest rectangles in fs mode; unfortunately this
            // means that we'll paint over fs window decorations
            pSrcRect = NULL;
            pDstRect = NULL;
        }
    } else {
        if (d3dsdo->swapEffect == D3DSWAPEFFECT_FLIP) {
            J2dTraceLn(J2D_TRACE_VERBOSE, "  D3DSWAPEFFECT_FLIP");
        } else {
            J2dTraceLn(J2D_TRACE_VERBOSE, "  D3DSWAPEFFECT_DISCARD");
        }
        // src and dest rectangles must be NULL for FLIP/DISCARD
        pSrcRect = NULL;
        pDstRect = NULL;
    }

    res = pSwapChain->Present(pSrcRect, pDstRect, 0, NULL, 0);
    res = D3DRQ_MarkLostIfNeeded(res, d3dsdo);

    return res;
}

HRESULT
D3DRQ_MarkLostIfNeeded(HRESULT res, D3DSDOps *d3dops)
{
    if (res == D3DERR_DEVICELOST || res == D3DERR_DEVICENOTRESET) {
        D3DContext *pCtx;

        J2dTraceLn(J2D_TRACE_WARNING, "D3DRQ_MarkLostIfNeeded: device lost");
        bLostDevices = TRUE;

        // only mark surfaces belonging to the lost device
        if (d3dops != NULL &&
            SUCCEEDED(res = D3DPipelineManager::GetInstance()->
                GetD3DContext(d3dops->adapter, &pCtx)))
        {
            IDirect3DDevice9 *pd3dDevice = pCtx->Get3DDevice();
            if (pd3dDevice) {
                HRESULT res1 = pd3dDevice->TestCooperativeLevel();
                if (res1 != D3DERR_DEVICELOST && res1 != D3DERR_DEVICENOTRESET){
                    // this surface's device is not lost, do not mark it
                    return res;
                }
            }
        }
        D3DSD_MarkLost(d3dops);
    }
    return res;
}

void D3DRQ_FlushBuffer(void *pParam)
{
    FlushBufferStruct *pFlush = (FlushBufferStruct*)pParam;
    JNIEnv *env = (JNIEnv *)JNU_GetEnv(jvm, JNI_VERSION_1_2);
    unsigned char *b, *end;
    int limit;
    HRESULT res = S_OK;
    BOOL bSync = FALSE;

    b = pFlush->buffer;
    limit = pFlush->limit;
    J2dTraceLn1(J2D_TRACE_INFO, "D3DRQ_flushBuffer: limit=%d", limit);

    end = b + limit;

    D3DPipelineManager *pMgr = D3DPipelineManager::GetInstance();
    if (pMgr == NULL) {
        J2dRlsTraceLn(J2D_TRACE_WARNING, "D3DRQ_flushBuffer: null manager");
        return;
    }

    if (bLostDevices) {
        if (SUCCEEDED(res = pMgr->HandleLostDevices())) {
            bLostDevices = FALSE;
        }
    }

    while (b < end) {
        jint opcode = NEXT_INT(b);

        J2dTraceLn1(J2D_TRACE_VERBOSE, "D3DRQ_flushBuffer: opcode=%d", opcode);

        switch (opcode) {

        // draw ops
        case sun_java2d_pipe_BufferedOpCodes_DRAW_LINE:
            {
                jint x1 = NEXT_INT(b);
                jint y1 = NEXT_INT(b);
                jint x2 = NEXT_INT(b);
                jint y2 = NEXT_INT(b);

                CONTINUE_IF_NULL(d3dc);
                res = D3DRenderer_DrawLine(d3dc, x1, y1, x2, y2);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_DRAW_RECT:
            {
                jint x = NEXT_INT(b);
                jint y = NEXT_INT(b);
                jint w = NEXT_INT(b);
                jint h = NEXT_INT(b);
                CONTINUE_IF_NULL(d3dc);
                res = D3DRenderer_DrawRect(d3dc, x, y, w, h);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_DRAW_POLY:
            {
                jint nPoints      = NEXT_INT(b);
                jboolean isClosed = NEXT_BOOLEAN(b);
                jint transX       = NEXT_INT(b);
                jint transY       = NEXT_INT(b);
                jint *xPoints = (jint *)b;
                jint *yPoints = ((jint *)b) + nPoints;
                CONTINUE_IF_NULL(d3dc);
                res = D3DRenderer_DrawPoly(d3dc, nPoints, isClosed,
                                           transX, transY,
                                     xPoints, yPoints);
                SKIP_BYTES(b, nPoints * BYTES_PER_POLY_POINT);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_DRAW_PIXEL:
            {
                jint x = NEXT_INT(b);
                jint y = NEXT_INT(b);

                CONTINUE_IF_NULL(d3dc);
                res = D3DRenderer_DrawLine(d3dc, x, y, x, y);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_DRAW_SCANLINES:
            {
                jint count = NEXT_INT(b);
                res = D3DRenderer_DrawScanlines(d3dc, count, (jint *)b);
                SKIP_BYTES(b, count * BYTES_PER_SCANLINE);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_DRAW_PARALLELOGRAM:
            {
                jfloat x11 = NEXT_FLOAT(b);
                jfloat y11 = NEXT_FLOAT(b);
                jfloat dx21 = NEXT_FLOAT(b);
                jfloat dy21 = NEXT_FLOAT(b);
                jfloat dx12 = NEXT_FLOAT(b);
                jfloat dy12 = NEXT_FLOAT(b);
                jfloat lwr21 = NEXT_FLOAT(b);
                jfloat lwr12 = NEXT_FLOAT(b);

                CONTINUE_IF_NULL(d3dc);
                res = D3DRenderer_DrawParallelogram(d3dc,
                                                    x11, y11,
                                                    dx21, dy21,
                                                    dx12, dy12,
                                                    lwr21, lwr12);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_DRAW_AAPARALLELOGRAM:
            {
                jfloat x11 = NEXT_FLOAT(b);
                jfloat y11 = NEXT_FLOAT(b);
                jfloat dx21 = NEXT_FLOAT(b);
                jfloat dy21 = NEXT_FLOAT(b);
                jfloat dx12 = NEXT_FLOAT(b);
                jfloat dy12 = NEXT_FLOAT(b);
                jfloat lwr21 = NEXT_FLOAT(b);
                jfloat lwr12 = NEXT_FLOAT(b);

                CONTINUE_IF_NULL(d3dc);
                res = D3DRenderer_DrawAAParallelogram(d3dc,
                                                      x11, y11,
                                                      dx21, dy21,
                                                      dx12, dy12,
                                                      lwr21, lwr12);
            }
            break;

        // fill ops
        case sun_java2d_pipe_BufferedOpCodes_FILL_RECT:
            {
                jint x = NEXT_INT(b);
                jint y = NEXT_INT(b);
                jint w = NEXT_INT(b);
                jint h = NEXT_INT(b);

                CONTINUE_IF_NULL(d3dc);
                res = D3DRenderer_FillRect(d3dc, x, y, w, h);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_FILL_PARALLELOGRAM:
            {
                jfloat x11 = NEXT_FLOAT(b);
                jfloat y11 = NEXT_FLOAT(b);
                jfloat dx21 = NEXT_FLOAT(b);
                jfloat dy21 = NEXT_FLOAT(b);
                jfloat dx12 = NEXT_FLOAT(b);
                jfloat dy12 = NEXT_FLOAT(b);

                CONTINUE_IF_NULL(d3dc);
                res = D3DRenderer_FillParallelogram(d3dc,
                                                    x11, y11,
                                                    dx21, dy21,
                                                    dx12, dy12);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_FILL_AAPARALLELOGRAM:
            {
                jfloat x11 = NEXT_FLOAT(b);
                jfloat y11 = NEXT_FLOAT(b);
                jfloat dx21 = NEXT_FLOAT(b);
                jfloat dy21 = NEXT_FLOAT(b);
                jfloat dx12 = NEXT_FLOAT(b);
                jfloat dy12 = NEXT_FLOAT(b);

                CONTINUE_IF_NULL(d3dc);
                res = D3DRenderer_FillAAParallelogram(d3dc,
                                                      x11, y11,
                                                      dx21, dy21,
                                                      dx12, dy12);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_FILL_SPANS:
            {
                jint count = NEXT_INT(b);
                res = D3DRenderer_FillSpans(d3dc, count, (jint *)b);
                SKIP_BYTES(b, count * BYTES_PER_SPAN);
            }
            break;

        // text-related ops
        case sun_java2d_pipe_BufferedOpCodes_DRAW_GLYPH_LIST:
            {
                jint numGlyphs        = NEXT_INT(b);
                jint packedParams     = NEXT_INT(b);
                jfloat glyphListOrigX = NEXT_FLOAT(b);
                jfloat glyphListOrigY = NEXT_FLOAT(b);
                jboolean usePositions = EXTRACT_BOOLEAN(packedParams,
                                                        OFFSET_POSITIONS);
                jboolean subPixPos    = EXTRACT_BOOLEAN(packedParams,
                                                        OFFSET_SUBPIXPOS);
                jboolean rgbOrder     = EXTRACT_BOOLEAN(packedParams,
                                                        OFFSET_RGBORDER);
                jint lcdContrast      = EXTRACT_BYTE(packedParams,
                                                     OFFSET_CONTRAST);
                unsigned char *images = b;
                unsigned char *positions;
                jint bytesPerGlyph;
                if (usePositions) {
                    positions = (b + numGlyphs * BYTES_PER_GLYPH_IMAGE);
                    bytesPerGlyph = BYTES_PER_POSITIONED_GLYPH;
                } else {
                    positions = NULL;
                    bytesPerGlyph = BYTES_PER_GLYPH_IMAGE;
                }
                res = D3DTR_DrawGlyphList(d3dc, dstOps,
                                          numGlyphs, usePositions,
                                          subPixPos, rgbOrder, lcdContrast,
                                          glyphListOrigX, glyphListOrigY,
                                          images, positions);
                SKIP_BYTES(b, numGlyphs * bytesPerGlyph);
            }
            break;

        // copy-related ops
        case sun_java2d_pipe_BufferedOpCodes_COPY_AREA:
            {
                jint x  = NEXT_INT(b);
                jint y  = NEXT_INT(b);
                jint w  = NEXT_INT(b);
                jint h  = NEXT_INT(b);
                jint dx = NEXT_INT(b);
                jint dy = NEXT_INT(b);
                res = D3DBlitLoops_CopyArea(env, d3dc, dstOps,
                                            x, y, w, h, dx, dy);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_BLIT:
            {
                jint packedParams = NEXT_INT(b);
                jint sx1          = NEXT_INT(b);
                jint sy1          = NEXT_INT(b);
                jint sx2          = NEXT_INT(b);
                jint sy2          = NEXT_INT(b);
                jdouble dx1       = NEXT_DOUBLE(b);
                jdouble dy1       = NEXT_DOUBLE(b);
                jdouble dx2       = NEXT_DOUBLE(b);
                jdouble dy2       = NEXT_DOUBLE(b);
                jlong pSrc        = NEXT_LONG(b);
                jlong pDst        = NEXT_LONG(b);
                jint hint         = EXTRACT_BYTE(packedParams, OFFSET_HINT);
                jboolean texture  = EXTRACT_BOOLEAN(packedParams,
                                                    OFFSET_TEXTURE);
                jboolean rtt      = EXTRACT_BOOLEAN(packedParams,
                                                    OFFSET_RTT);
                jboolean xform    = EXTRACT_BOOLEAN(packedParams,
                                                    OFFSET_XFORM);
                jboolean isoblit  = EXTRACT_BOOLEAN(packedParams,
                                                    OFFSET_ISOBLIT);
                if (isoblit) {
                    res = D3DBlitLoops_IsoBlit(env, d3dc, pSrc, pDst,
                                               xform, hint, texture, rtt,
                                               sx1, sy1, sx2, sy2,
                                               dx1, dy1, dx2, dy2);
                    D3DRQ_MarkLostIfNeeded(res, (D3DSDOps*)pSrc);
                } else {
                    jint srctype = EXTRACT_BYTE(packedParams, OFFSET_SRCTYPE);
                    res = D3DBlitLoops_Blit(env, d3dc, pSrc, pDst,
                                            xform, hint, srctype, texture,
                                            sx1, sy1, sx2, sy2,
                                            dx1, dy1, dx2, dy2);
                }
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_SURFACE_TO_SW_BLIT:
            {
                jint sx      = NEXT_INT(b);
                jint sy      = NEXT_INT(b);
                jint dx      = NEXT_INT(b);
                jint dy      = NEXT_INT(b);
                jint w       = NEXT_INT(b);
                jint h       = NEXT_INT(b);
                jint dsttype = NEXT_INT(b);
                jlong pSrc   = NEXT_LONG(b);
                jlong pDst   = NEXT_LONG(b);
                res = D3DBlitLoops_SurfaceToSwBlit(env, d3dc,
                                                   pSrc, pDst, dsttype,
                                                   sx, sy, dx, dy, w, h);
                D3DRQ_MarkLostIfNeeded(res, (D3DSDOps*)pSrc);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_MASK_FILL:
            {
                jint x        = NEXT_INT(b);
                jint y        = NEXT_INT(b);
                jint w        = NEXT_INT(b);
                jint h        = NEXT_INT(b);
                jint maskoff  = NEXT_INT(b);
                jint maskscan = NEXT_INT(b);
                jint masklen  = NEXT_INT(b);
                unsigned char *pMask = (masklen > 0) ? b : NULL;
                res = D3DMaskFill_MaskFill(d3dc, x, y, w, h,
                                           maskoff, maskscan, masklen, pMask);
                SKIP_BYTES(b, masklen);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_MASK_BLIT:
            {
                jint dstx     = NEXT_INT(b);
                jint dsty     = NEXT_INT(b);
                jint width    = NEXT_INT(b);
                jint height   = NEXT_INT(b);
                jint masklen  = width * height * sizeof(jint);
                res = D3DMaskBlit_MaskBlit(env, d3dc,
                                           dstx, dsty, width, height, b);
                SKIP_BYTES(b, masklen);
            }
            break;

        // state-related ops
        case sun_java2d_pipe_BufferedOpCodes_SET_RECT_CLIP:
            {
                jint x1 = NEXT_INT(b);
                jint y1 = NEXT_INT(b);
                jint x2 = NEXT_INT(b);
                jint y2 = NEXT_INT(b);
                CONTINUE_IF_NULL(d3dc);
                res = d3dc->SetRectClip(x1, y1, x2, y2);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_BEGIN_SHAPE_CLIP:
            {
                CONTINUE_IF_NULL(d3dc);
                res = d3dc->BeginShapeClip();
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_SET_SHAPE_CLIP_SPANS:
            {
                jint count = NEXT_INT(b);
                res = D3DRenderer_FillSpans(d3dc, count, (jint *)b);
                SKIP_BYTES(b, count * BYTES_PER_SPAN);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_END_SHAPE_CLIP:
            {
                CONTINUE_IF_NULL(d3dc);
                res = d3dc->EndShapeClip();
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_RESET_CLIP:
            {
                CONTINUE_IF_NULL(d3dc);
                res = d3dc->ResetClip();
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_SET_ALPHA_COMPOSITE:
            {
                jint rule         = NEXT_INT(b);
                jfloat extraAlpha = NEXT_FLOAT(b);
                jint flags        = NEXT_INT(b);
                CONTINUE_IF_NULL(d3dc);
                res = d3dc->SetAlphaComposite(rule, extraAlpha, flags);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_SET_XOR_COMPOSITE:
            {
                jint xorPixel = NEXT_INT(b);
//                res = d3dc->SetXorComposite(d3dc, xorPixel);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_RESET_COMPOSITE:
            {
                CONTINUE_IF_NULL(d3dc);
                res = d3dc->ResetComposite();
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_SET_TRANSFORM:
            {
                jdouble m00 = NEXT_DOUBLE(b);
                jdouble m10 = NEXT_DOUBLE(b);
                jdouble m01 = NEXT_DOUBLE(b);
                jdouble m11 = NEXT_DOUBLE(b);
                jdouble m02 = NEXT_DOUBLE(b);
                jdouble m12 = NEXT_DOUBLE(b);
                res = d3dc->SetTransform(m00, m10, m01, m11, m02, m12);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_RESET_TRANSFORM:
            {
                CONTINUE_IF_NULL(d3dc);
                res = d3dc->ResetTransform();
            }
            break;

        // context-related ops
        case sun_java2d_pipe_BufferedOpCodes_SET_SURFACES:
            {
                jlong pSrc = NEXT_LONG(b);
                jlong pDst = NEXT_LONG(b);
                D3DContext *oldd3dc = NULL;
                if (d3dc != NULL) {
                    oldd3dc = d3dc;
                    d3dc = NULL;
                    oldd3dc->UpdateState(STATE_CHANGE);
                }
                dstOps = (D3DSDOps *)jlong_to_ptr(pDst);
                res = pMgr->GetD3DContext(dstOps->adapter, &d3dc);
                if (FAILED(res)) {
                    J2dRlsTraceLn(J2D_TRACE_ERROR,
                        "D3DRQ_FlushBuffer: failed to get context");
                    D3DRQ_ResetCurrentContextAndDestination();
                    break;
                }
                // REMIND: we may also want to do EndScene on each
                // render target change so that the GPU can go work on
                // whatever is already in the queue
                if (oldd3dc != d3dc && oldd3dc != NULL) {
                    res = oldd3dc->EndScene();
                }
                CONTINUE_IF_NULL(dstOps->pResource);
                res = d3dc->SetRenderTarget(dstOps->pResource->GetSurface());
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_SET_SCRATCH_SURFACE:
            {
                jint screen = NEXT_INT(b);
                jint adapter = pMgr->GetAdapterOrdinalForScreen(screen);
                D3DContext *oldd3dc = NULL;

                if (d3dc != NULL) {
                    oldd3dc = d3dc;
                    d3dc = NULL;
                }
                res = pMgr->GetD3DContext(adapter, &d3dc);
                if (FAILED(res)) {
                    J2dRlsTraceLn(J2D_TRACE_ERROR,
                        "D3DRQ_FlushBuffer: failed to get context");
                    D3DRQ_ResetCurrentContextAndDestination();
                } else if (oldd3dc != d3dc && oldd3dc != NULL) {
                    res = oldd3dc->EndScene();
                }
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_FLUSH_SURFACE:
            {
                jlong pData = NEXT_LONG(b);
                D3DSDOps *d3dsdo = (D3DSDOps *)jlong_to_ptr(pData);
                D3DSD_Flush(d3dsdo);
                if (dstOps == d3dsdo) {
                    dstOps = NULL;
                }
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_DISPOSE_SURFACE:
            {
                jlong pData = NEXT_LONG(b);
                D3DSDOps *d3dsdo = (D3DSDOps *)jlong_to_ptr(pData);
                D3DSD_Flush(d3dsdo);
                if (dstOps == d3dsdo) {
                    dstOps = NULL;
                }
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_DISPOSE_CONFIG:
            {
                jlong pConfigInfo = NEXT_LONG(b);
                CONTINUE_IF_NULL(d3dc);
                // REMIND: does this need to be implemented for D3D?
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_INVALIDATE_CONTEXT:
            {
                // flush just in case there are any pending operations in
                // the hardware pipe
                if (d3dc != NULL) {
                    res = d3dc->EndScene();
                }

                // invalidate the references to the current context and
                // destination surface that are maintained at the native level
                D3DRQ_ResetCurrentContextAndDestination();
            }
            break;

        case sun_java2d_pipe_BufferedOpCodes_SYNC:
            {
                bSync = TRUE;
            }
            break;

        case sun_java2d_pipe_BufferedOpCodes_RESTORE_DEVICES:
            {
                J2dTraceLn(J2D_TRACE_INFO, "D3DRQ_FlushBuffer:  RESTORE_DEVICES");
                if (SUCCEEDED(res = pMgr->HandleLostDevices())) {
                    bLostDevices = FALSE;
                } else {
                    bLostDevices = TRUE;
                }
            }
            break;

        case sun_java2d_pipe_BufferedOpCodes_SAVE_STATE:
            {
                CONTINUE_IF_NULL(d3dc);

                res = d3dc->SaveState();
            }
            break;

        case sun_java2d_pipe_BufferedOpCodes_RESTORE_STATE:
            {
                CONTINUE_IF_NULL(d3dc);

                res = d3dc->RestoreState();
            }
            break;

        // multibuffering ops
        case sun_java2d_pipe_BufferedOpCodes_SWAP_BUFFERS:
            {
                jlong sdo = NEXT_LONG(b);
                jint x1 = NEXT_INT(b);
                jint y1 = NEXT_INT(b);
                jint x2 = NEXT_INT(b);
                jint y2 = NEXT_INT(b);

                res = D3DRQ_SwapBuffers(pMgr, (D3DSDOps *)jlong_to_ptr(sdo),
                                        x1, y1, x2, y2);
            }
            break;

        // special no-op (mainly used for achieving 8-byte alignment)
        case sun_java2d_pipe_BufferedOpCodes_NOOP:
            break;

        // paint-related ops
        case sun_java2d_pipe_BufferedOpCodes_RESET_PAINT:
            {
                res = D3DPaints_ResetPaint(d3dc);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_SET_COLOR:
            {
                jint pixel = NEXT_INT(b);
                res = D3DPaints_SetColor(d3dc, pixel);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_SET_GRADIENT_PAINT:
            {
                jboolean useMask= NEXT_BOOLEAN(b);
                jboolean cyclic = NEXT_BOOLEAN(b);
                jdouble p0      = NEXT_DOUBLE(b);
                jdouble p1      = NEXT_DOUBLE(b);
                jdouble p3      = NEXT_DOUBLE(b);
                jint pixel1     = NEXT_INT(b);
                jint pixel2     = NEXT_INT(b);
                res = D3DPaints_SetGradientPaint(d3dc, useMask, cyclic,
                                                 p0, p1, p3,
                                                 pixel1, pixel2);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_SET_LINEAR_GRADIENT_PAINT:
            {
                jboolean useMask = NEXT_BOOLEAN(b);
                jboolean linear  = NEXT_BOOLEAN(b);
                jint cycleMethod = NEXT_INT(b);
                jint numStops    = NEXT_INT(b);
                jfloat p0        = NEXT_FLOAT(b);
                jfloat p1        = NEXT_FLOAT(b);
                jfloat p3        = NEXT_FLOAT(b);
                void *fractions, *pixels;
                fractions = b; SKIP_BYTES(b, numStops * sizeof(jfloat));
                pixels    = b; SKIP_BYTES(b, numStops * sizeof(jint));
                res = D3DPaints_SetLinearGradientPaint(d3dc, dstOps,
                                                        useMask, linear,
                                                        cycleMethod, numStops,
                                                        p0, p1, p3,
                                                        fractions, pixels);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_SET_RADIAL_GRADIENT_PAINT:
            {
                jboolean useMask = NEXT_BOOLEAN(b);
                jboolean linear  = NEXT_BOOLEAN(b);
                jint numStops    = NEXT_INT(b);
                jint cycleMethod = NEXT_INT(b);
                jfloat m00       = NEXT_FLOAT(b);
                jfloat m01       = NEXT_FLOAT(b);
                jfloat m02       = NEXT_FLOAT(b);
                jfloat m10       = NEXT_FLOAT(b);
                jfloat m11       = NEXT_FLOAT(b);
                jfloat m12       = NEXT_FLOAT(b);
                jfloat focusX    = NEXT_FLOAT(b);
                void *fractions, *pixels;
                fractions = b; SKIP_BYTES(b, numStops * sizeof(jfloat));
                pixels    = b; SKIP_BYTES(b, numStops * sizeof(jint));
                res = D3DPaints_SetRadialGradientPaint(d3dc, dstOps,
                                                       useMask, linear,
                                                       cycleMethod, numStops,
                                                       m00, m01, m02,
                                                       m10, m11, m12,
                                                       focusX,
                                                       fractions, pixels);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_SET_TEXTURE_PAINT:
            {
                jboolean useMask= NEXT_BOOLEAN(b);
                jboolean filter = NEXT_BOOLEAN(b);
                jlong pSrc      = NEXT_LONG(b);
                jdouble xp0     = NEXT_DOUBLE(b);
                jdouble xp1     = NEXT_DOUBLE(b);
                jdouble xp3     = NEXT_DOUBLE(b);
                jdouble yp0     = NEXT_DOUBLE(b);
                jdouble yp1     = NEXT_DOUBLE(b);
                jdouble yp3     = NEXT_DOUBLE(b);
                res = D3DPaints_SetTexturePaint(d3dc, useMask, pSrc, filter,
                                                xp0, xp1, xp3,
                                                yp0, yp1, yp3);
            }
            break;

        // BufferedImageOp-related ops
        case sun_java2d_pipe_BufferedOpCodes_ENABLE_CONVOLVE_OP:
            {
                jlong pSrc        = NEXT_LONG(b);
                jboolean edgeZero = NEXT_BOOLEAN(b);
                jint kernelWidth  = NEXT_INT(b);
                jint kernelHeight = NEXT_INT(b);
                res = D3DBufImgOps_EnableConvolveOp(d3dc, pSrc, edgeZero,
                                                    kernelWidth, kernelHeight, b);
                SKIP_BYTES(b, kernelWidth * kernelHeight * sizeof(jfloat));
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_DISABLE_CONVOLVE_OP:
            {
                res = D3DBufImgOps_DisableConvolveOp(d3dc);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_ENABLE_RESCALE_OP:
            {
                jlong pSrc          = NEXT_LONG(b); // unused
                jboolean nonPremult = NEXT_BOOLEAN(b);
                jint numFactors     = 4;
                unsigned char *scaleFactors = b;
                unsigned char *offsets = (b + numFactors * sizeof(jfloat));
                res = D3DBufImgOps_EnableRescaleOp(d3dc, nonPremult,
                                                   scaleFactors, offsets);
                SKIP_BYTES(b, numFactors * sizeof(jfloat) * 2);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_DISABLE_RESCALE_OP:
            {
                D3DBufImgOps_DisableRescaleOp(d3dc);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_ENABLE_LOOKUP_OP:
            {
                jlong pSrc          = NEXT_LONG(b); // unused
                jboolean nonPremult = NEXT_BOOLEAN(b);
                jboolean shortData  = NEXT_BOOLEAN(b);
                jint numBands       = NEXT_INT(b);
                jint bandLength     = NEXT_INT(b);
                jint offset         = NEXT_INT(b);
                jint bytesPerElem = shortData ? sizeof(jshort):sizeof(jbyte);
                void *tableValues = b;
                res = D3DBufImgOps_EnableLookupOp(d3dc, nonPremult, shortData,
                                                  numBands, bandLength, offset,
                                                  tableValues);
                SKIP_BYTES(b, numBands * bandLength * bytesPerElem);
            }
            break;
        case sun_java2d_pipe_BufferedOpCodes_DISABLE_LOOKUP_OP:
            {
                res = D3DBufImgOps_DisableLookupOp(d3dc);
            }
            break;

        default:
            J2dRlsTraceLn1(J2D_TRACE_ERROR,
                "D3DRQ_flushBuffer: invalid opcode=%d", opcode);
            return;
        }
        // we may mark the surface lost repeatedly but that won't do much harm
        res = D3DRQ_MarkLostIfNeeded(res, dstOps);
    }

    if (d3dc != NULL) {
        res = d3dc->EndScene();
        // REMIND: EndScene is not really enough to flush the
        // whole d3d pipeline

        // REMIND: there may be an issue with BeginScene/EndScene
        // for each flushQueue, because of the blits, which flush
        // the queue
        if (bSync) {
            res = d3dc->Sync();
        }
    }

    // REMIND: we need to also handle hard errors here as well, and disable
    // particular context if needed
    D3DRQ_MarkLostIfNeeded(res, dstOps);

    if (!JNU_IsNull(env, pFlush->runnable)) {
        J2dTraceLn(J2D_TRACE_VERBOSE, "  executing runnable");
        JNU_CallMethodByName(env, NULL, pFlush->runnable, "run", "()V");
    }
}

/**
 * Returns a pointer to the "current" context, as set by the last SET_SURFACES
 * or SET_SCRATCH_SURFACE operation.
 */
D3DContext *
D3DRQ_GetCurrentContext()
{
    return d3dc;
}

/**
 * Returns a pointer to the "current" destination surface, as set by the last
 * SET_SURFACES operation.
 */
D3DSDOps *
D3DRQ_GetCurrentDestination()
{
    return dstOps;
}

/**
 * Resets current context and destination surface.
 */
void
D3DRQ_ResetCurrentContextAndDestination()
{
    J2dTraceLn(J2D_TRACE_INFO, "D3DRQ_ResetCurrentContextAndDestination");

    d3dc = NULL;
    dstOps = NULL;
}

extern "C"
{

/*
 * Class:     sun_java2d_d3d_D3DRenderQueue
 * Method:    flushBuffer
 * Signature: (JILjava/lang/Runnable;)V
 */
JNIEXPORT void JNICALL
Java_sun_java2d_d3d_D3DRenderQueue_flushBuffer
  (JNIEnv *env, jobject d3drq, jlong buf, jint limit, jobject runnable)
{
    FlushBufferStruct bufstr;
    // just in case we forget to init any new fields
    ZeroMemory(&bufstr, sizeof(FlushBufferStruct));

    bufstr.buffer = (unsigned char *)jlong_to_ptr(buf);
    if (bufstr.buffer == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
            "D3DRenderQueue_flushBuffer: cannot get direct buffer address");
        return;
    }
    bufstr.limit = limit;

    bufstr.runnable = JNU_IsNull(env, runnable) ?
        NULL : env->NewGlobalRef(runnable);
    AwtToolkit::GetInstance().InvokeFunction(D3DRQ_FlushBuffer, &bufstr);
    if (!JNU_IsNull(env, bufstr.runnable)) {
        env->DeleteGlobalRef(bufstr.runnable);
    }
}

}

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