Ejemplo n.º 1
0
// static
HRESULT D3DPipelineManager::HandleAdaptersChange(HMONITOR *pHMONITORs, UINT monNum)
{
    HRESULT res = S_OK;
    BOOL bResetD3D = FALSE, bFound;

    D3DPipelineManager *pMgr = D3DPipelineManager::GetInstance();
    RETURN_STATUS_IF_NULL(pHMONITORs, E_FAIL);
    if (pMgr == NULL) {
        // NULL pMgr is valid when the pipeline is not enabled or if it hasn't
        // been created yet
        return S_OK;
    }
    RETURN_STATUS_IF_NULL(pMgr->pAdapters, E_FAIL);
    RETURN_STATUS_IF_NULL(pMgr->pd3d9, E_FAIL);

    J2dTraceLn(J2D_TRACE_INFO, "D3DPPLM::HandleAdaptersChange");

    if (monNum != pMgr->adapterCount) {
        J2dTraceLn2(J2D_TRACE_VERBOSE,
                   "  number of adapters changed (old=%d, new=%d)",
                   pMgr->adapterCount, monNum);
        bResetD3D = TRUE;
    } else {
        for (UINT i = 0; i < pMgr->adapterCount; i++) {
            HMONITOR hMon = pMgr->pd3d9->GetAdapterMonitor(i);
            if (hMon == (HMONITOR)0x0) {
                J2dTraceLn1(J2D_TRACE_VERBOSE, "  adapter %d: removed", i);
                bResetD3D = TRUE;
                break;
            }
            bFound = FALSE;
            for (UINT mon = 0; mon < monNum; mon++) {
                if (pHMONITORs[mon] == hMon) {
                    J2dTraceLn3(J2D_TRACE_VERBOSE,
                            "  adapter %d: found hmnd[%d]=0x%x", i, mon, hMon);
                    bFound = TRUE;
                    break;
                }
            }
            if (!bFound) {
                J2dTraceLn2(J2D_TRACE_VERBOSE,
                            "  adapter %d: could not find hmnd=0x%x "\
                            "in the list of new hmnds", i, hMon);
                bResetD3D = TRUE;
                break;
            }
        }
    }

    if (bResetD3D) {
        J2dTraceLn(J2D_TRACE_VERBOSE, "  adapters changed: resetting d3d");
        pMgr->ReleaseD3D();
        res = pMgr->InitD3D();
    }
    return res;
}
Ejemplo n.º 2
0
/**
 * Debugging utility: prints information about errors received
 * during interaction with the registry.
 */
void RegistryKey::PrintRegistryError(LONG errNum, char *message)
{
    WCHAR errString[255];
    int numChars =  FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM, NULL, errNum, 0,
        errString, 255, NULL);
    if (numChars == 0) {
        J2dTraceLn1(J2D_TRACE_ERROR, "problem with formatmessage, err = %d\n",
                    GetLastError());
    }
    J2dTraceLn3(J2D_TRACE_ERROR, "problem with %s, errNum, string = %d, %S\n",
                message, errNum, errString);
}
Ejemplo n.º 3
0
/**
 * Initializes the OpenGL transform state by setting the modelview transform
 * using the given matrix parameters.
 *
 * REMIND: it may be worthwhile to add serial id to AffineTransform, so we
 *         could do a quick check to see if the xform has changed since
 *         last time... a simple object compare won't suffice...
 */
void
OGLContext_SetTransform(OGLContext *oglc,
                        jdouble m00, jdouble m10,
                        jdouble m01, jdouble m11,
                        jdouble m02, jdouble m12)
{
    J2dTraceLn(J2D_TRACE_INFO, "OGLContext_SetTransform");

    RETURN_IF_NULL(oglc);
    CHECK_PREVIOUS_OP(OGL_STATE_CHANGE);

    if (oglc->xformMatrix == NULL) {
        size_t arrsize = 16 * sizeof(GLdouble);
        oglc->xformMatrix = (GLdouble *)malloc(arrsize);
        memset(oglc->xformMatrix, 0, arrsize);
        oglc->xformMatrix[10] = 1.0;
        oglc->xformMatrix[15] = 1.0;
    }

    // copy values from AffineTransform object into native matrix array
    oglc->xformMatrix[0] = m00;
    oglc->xformMatrix[1] = m10;
    oglc->xformMatrix[4] = m01;
    oglc->xformMatrix[5] = m11;
    oglc->xformMatrix[12] = m02;
    oglc->xformMatrix[13] = m12;

    J2dTraceLn3(J2D_TRACE_VERBOSE, "  [%lf %lf %lf]",
                oglc->xformMatrix[0], oglc->xformMatrix[4],
                oglc->xformMatrix[12]);
    J2dTraceLn3(J2D_TRACE_VERBOSE, "  [%lf %lf %lf]",
                oglc->xformMatrix[1], oglc->xformMatrix[5],
                oglc->xformMatrix[13]);

    j2d_glMatrixMode(GL_MODELVIEW);
    j2d_glLoadMatrixd(oglc->xformMatrix);
}
Ejemplo n.º 4
0
HRESULT D3DResourceManager::CreateRTSurface(UINT width, UINT height,
                                         BOOL isOpaque, BOOL isLockable,
                                         D3DFORMAT *pFormat/*out*/,
                                         D3DResource** ppSurfaceResource/*out*/)
{
    HRESULT res;
    IDirect3DDevice9 *pd3dDevice;

    J2dTraceLn(J2D_TRACE_INFO, "D3DRM::CreateRTSurface");
    J2dTraceLn3(J2D_TRACE_VERBOSE, "  w=%d h=%d isOpaque=%d",
                width, height, isOpaque);

    if (pCtx == NULL || ppSurfaceResource == NULL ||
        (pd3dDevice = pCtx->Get3DDevice()) == NULL)
    {
        return E_FAIL;
    }
    if (FAILED(res = pd3dDevice->TestCooperativeLevel())) {
        return res;
    }

    D3DPRESENT_PARAMETERS *curParams = pCtx->GetPresentationParams();
    D3DFORMAT format = isOpaque ? curParams->BackBufferFormat : D3DFMT_A8R8G8B8;
    IDirect3DSurface9 *pSurface = NULL;

    res = pd3dDevice->CreateRenderTarget(width, height, format,
                                         D3DMULTISAMPLE_NONE, 0,
                                         isLockable,
                                         &pSurface, NULL);
    if (SUCCEEDED(res)) {
        J2dTraceLn1(J2D_TRACE_VERBOSE, "  created RT Surface: 0x%x ", pSurface);
        if (pFormat != NULL) {
            *pFormat = format;
        }
        *ppSurfaceResource = new D3DResource((IDirect3DResource9*)pSurface);
        res = AddResource(*ppSurfaceResource);
    } else {
        DebugPrintD3DError(res, "D3DRM::CreateRTSurface failed");
        ppSurfaceResource = NULL;
    }
    return res;
}
Ejemplo n.º 5
0
/**
 * Returns cell info associated with particular cache from the glyph's list of
 * cached cells.
 */
CacheCellInfo *
AccelGlyphCache_GetCellInfoForCache(GlyphInfo *glyph, GlyphCacheInfo *cache)
{
    // assert (glyph != NULL && cache != NULL)
    J2dTraceLn(J2D_TRACE_VERBOSE2, "AccelGlyphCache_GetCellInfoForCache");

    if (glyph->cellInfo != NULL) {
        CacheCellInfo *cellInfo = glyph->cellInfo;
        do {
            if (cellInfo->cacheInfo == cache) {
                J2dTraceLn3(J2D_TRACE_VERBOSE2,
                            "  glyph 0x%x: found cell 0x%x for cache 0x%x",
                            glyph, cellInfo, cache);
                return cellInfo;
            }
            cellInfo = cellInfo->nextGCI;
        } while (cellInfo != NULL);
    }
    J2dTraceLn2(J2D_TRACE_VERBOSE2, "  glyph 0x%x: no cell for cache 0x%x",
                glyph, cache);
    return NULL;
}
JNIEXPORT jboolean JNICALL
Java_sun_java2d_opengl_GLXSurfaceData_initPbuffer
    (JNIEnv *env, jobject glxsd,
     jlong pData, jlong pConfigInfo,
     jboolean isOpaque,
     jint width, jint height)
{
    OGLSDOps *oglsdo = (OGLSDOps *)jlong_to_ptr(pData);
    GLXGraphicsConfigInfo *glxinfo =
        (GLXGraphicsConfigInfo *)jlong_to_ptr(pConfigInfo);
    GLXSDOps *glxsdo;
    GLXPbuffer pbuffer;
    int attrlist[] = {GLX_PBUFFER_WIDTH, 0,
                      GLX_PBUFFER_HEIGHT, 0,
                      GLX_PRESERVED_CONTENTS, GL_FALSE, 0};

    J2dTraceLn3(J2D_TRACE_INFO,
                "GLXSurfaceData_initPbuffer: w=%d h=%d opq=%d",
                width, height, isOpaque);

    if (oglsdo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
                      "GLXSurfaceData_initPbuffer: ops are null");
        return JNI_FALSE;
    }

    glxsdo = (GLXSDOps *)oglsdo->privOps;
    if (glxsdo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
                      "GLXSurfaceData_initPbuffer: glx ops are null");
        return JNI_FALSE;
    }

    if (glxinfo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
                      "GLXSurfaceData_initPbuffer: glx config info is null");
        return JNI_FALSE;
    }

    attrlist[1] = width;
    attrlist[3] = height;

    surfaceCreationFailed = JNI_FALSE;
    EXEC_WITH_XERROR_HANDLER(
        GLXSD_BadAllocXErrHandler,
        pbuffer = j2d_glXCreatePbuffer(awt_display,
                                       glxinfo->fbconfig, attrlist));
    if ((pbuffer == 0) || surfaceCreationFailed) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
            "GLXSurfaceData_initPbuffer: could not create glx pbuffer");
        return JNI_FALSE;
    }

    oglsdo->drawableType = OGLSD_PBUFFER;
    oglsdo->isOpaque = isOpaque;
    oglsdo->width = width;
    oglsdo->height = height;
    oglsdo->xOffset = 0;
    oglsdo->yOffset = 0;

    glxsdo->drawable = pbuffer;
    glxsdo->xdrawable = 0;

    return JNI_TRUE;
}
Ejemplo n.º 7
0
JNIEXPORT jboolean JNICALL
Java_sun_java2d_opengl_WGLSurfaceData_initPbuffer
    (JNIEnv *env, jobject wglsd,
     jlong pData, jlong pConfigInfo,
     jboolean isOpaque,
     jint width, jint height)
{
    int attrKeys[] = {
        WGL_MAX_PBUFFER_WIDTH_ARB,
        WGL_MAX_PBUFFER_HEIGHT_ARB,
    };
    int attrVals[2];
    int pbAttrList[] = { 0 };
    OGLSDOps *oglsdo = (OGLSDOps *)jlong_to_ptr(pData);
    WGLGraphicsConfigInfo *wglInfo =
        (WGLGraphicsConfigInfo *)jlong_to_ptr(pConfigInfo);
    WGLSDOps *wglsdo;
    HWND hwnd;
    HDC hdc, pbufferDC;
    HPBUFFERARB pbuffer;
    int maxWidth, maxHeight;
    int actualWidth, actualHeight;

    J2dTraceLn3(J2D_TRACE_INFO,
                "WGLSurfaceData_initPbuffer: w=%d h=%d opq=%d",
                width, height, isOpaque);

    if (oglsdo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
            "WGLSurfaceData_initPbuffer: ops are null");
        return JNI_FALSE;
    }

    wglsdo = (WGLSDOps *)oglsdo->privOps;
    if (wglsdo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
            "WGLSurfaceData_initPbuffer: wgl ops are null");
        return JNI_FALSE;
    }

    if (wglInfo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
            "WGLSurfaceData_initPbuffer: wgl config info is null");
        return JNI_FALSE;
    }

    // create a scratch window
    hwnd = WGLGC_CreateScratchWindow(wglInfo->screen);
    if (hwnd == 0) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
            "WGLSurfaceData_initPbuffer: could not create scratch window");
        return JNI_FALSE;
    }

    // get the HDC for the scratch window
    hdc = GetDC(hwnd);
    if (hdc == 0) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
            "WGLSurfaceData_initPbuffer: could not get dc for scratch window");
        DestroyWindow(hwnd);
        return JNI_FALSE;
    }

    // get the maximum allowable pbuffer dimensions
    j2d_wglGetPixelFormatAttribivARB(hdc, wglInfo->pixfmt, 0, 2,
                                     attrKeys, attrVals);
    maxWidth  = attrVals[0];
    maxHeight = attrVals[1];

    J2dTraceLn4(J2D_TRACE_VERBOSE,
                "  desired pbuffer dimensions: w=%d h=%d maxw=%d maxh=%d",
                width, height, maxWidth, maxHeight);

    // if either dimension is 0 or larger than the maximum, we cannot
    // allocate a pbuffer with the requested dimensions
    if (width  == 0 || width  > maxWidth ||
        height == 0 || height > maxHeight)
    {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
            "WGLSurfaceData_initPbuffer: invalid dimensions");
        ReleaseDC(hwnd, hdc);
        DestroyWindow(hwnd);
        return JNI_FALSE;
    }

    pbuffer = j2d_wglCreatePbufferARB(hdc, wglInfo->pixfmt,
                                      width, height, pbAttrList);

    ReleaseDC(hwnd, hdc);
    DestroyWindow(hwnd);

    if (pbuffer == 0) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
            "WGLSurfaceData_initPbuffer: could not create wgl pbuffer");
        return JNI_FALSE;
    }

    // note that we get the DC for the pbuffer at creation time, and then
    // release the DC when the pbuffer is disposed; the WGL_ARB_pbuffer
    // spec is vague about such things, but from past experience we know
    // this approach to be more robust than, for example, doing a
    // Get/ReleasePbufferDC() everytime we make a context current
    pbufferDC = j2d_wglGetPbufferDCARB(pbuffer);
    if (pbufferDC == 0) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
            "WGLSurfaceData_initPbuffer: could not get dc for pbuffer");
        j2d_wglDestroyPbufferARB(pbuffer);
        return JNI_FALSE;
    }

    // make sure the actual dimensions match those that we requested
    j2d_wglQueryPbufferARB(pbuffer, WGL_PBUFFER_WIDTH_ARB, &actualWidth);
    j2d_wglQueryPbufferARB(pbuffer, WGL_PBUFFER_HEIGHT_ARB, &actualHeight);

    if (width != actualWidth || height != actualHeight) {
        J2dRlsTraceLn2(J2D_TRACE_ERROR,
            "WGLSurfaceData_initPbuffer: actual (w=%d h=%d) != requested",
                       actualWidth, actualHeight);
        j2d_wglReleasePbufferDCARB(pbuffer, pbufferDC);
        j2d_wglDestroyPbufferARB(pbuffer);
        return JNI_FALSE;
    }

    oglsdo->drawableType = OGLSD_PBUFFER;
    oglsdo->isOpaque = isOpaque;
    oglsdo->width = width;
    oglsdo->height = height;
    wglsdo->pbuffer = pbuffer;
    wglsdo->pbufferDC = pbufferDC;

    OGLSD_SetNativeDimensions(env, oglsdo, width, height);

    return JNI_TRUE;
}
Ejemplo n.º 8
0
/**
 * Initializes a framebuffer object based on the given textureID and its
 * width/height.  This method will iterate through all possible depth formats
 * to find one that is supported by the drivers/hardware.  (Since our use of
 * the depth buffer is fairly simplistic, we hope to find a depth format that
 * uses as little VRAM as possible.)  If an appropriate depth buffer is found
 * and all attachments are successful (i.e. the framebuffer object is
 * "complete"), then this method will return JNI_TRUE and will initialize
 * the values of fbobjectID and depthID using the IDs created by this method.
 * Otherwise, this method returns JNI_FALSE.  Note that the caller is only
 * responsible for deleting the allocated fbobject and depth renderbuffer
 * resources if this method returned JNI_TRUE.
 */
jboolean
OGLSD_InitFBObject(GLuint *fbobjectID, GLuint *depthID,
                   GLuint textureID, GLenum textureTarget,
                   jint textureWidth, jint textureHeight)
{
    GLenum depthFormats[] = {
        GL_DEPTH_COMPONENT16, GL_DEPTH_COMPONENT24, GL_DEPTH_COMPONENT32
    };
    GLuint fboTmpID, depthTmpID;
    jboolean foundDepth = JNI_FALSE;
    int i;

    J2dTraceLn3(J2D_TRACE_INFO, "OGLSD_InitFBObject: w=%d h=%d texid=%d",
                textureWidth, textureHeight, textureID);

    // initialize framebuffer object
    j2d_glGenFramebuffersEXT(1, &fboTmpID);
    j2d_glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, fboTmpID);

    // attach color texture to framebuffer object
    j2d_glFramebufferTexture2DEXT(GL_FRAMEBUFFER_EXT,
                                  GL_COLOR_ATTACHMENT0_EXT,
                                  textureTarget, textureID, 0);

    // attempt to create a depth renderbuffer of a particular format; we
    // will start with the smallest size and then work our way up
    for (i = 0; i < 3; i++) {
        GLenum error, status;
        GLenum depthFormat = depthFormats[i];
        int depthSize = 16 + (i * 8);

        // initialize depth renderbuffer
        j2d_glGenRenderbuffersEXT(1, &depthTmpID);
        j2d_glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, depthTmpID);
        j2d_glRenderbufferStorageEXT(GL_RENDERBUFFER_EXT, depthFormat,
                                     textureWidth, textureHeight);

        // creation of depth buffer could potentially fail, so check for error
        error = j2d_glGetError();
        if (error != GL_NO_ERROR) {
            J2dTraceLn2(J2D_TRACE_VERBOSE,
                "OGLSD_InitFBObject: could not create depth buffer: depth=%d error=%x",
                           depthSize, error);
            j2d_glDeleteRenderbuffersEXT(1, &depthTmpID);
            continue;
        }

        // attach depth renderbuffer to framebuffer object
        j2d_glFramebufferRenderbufferEXT(GL_FRAMEBUFFER_EXT,
                                         GL_DEPTH_ATTACHMENT_EXT,
                                         GL_RENDERBUFFER_EXT, depthTmpID);

        // now check for framebuffer "completeness"
        status = j2d_glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);

        if (status == GL_FRAMEBUFFER_COMPLETE_EXT) {
            // we found a valid format, so break out of the loop
            J2dTraceLn1(J2D_TRACE_VERBOSE,
                        "  framebuffer is complete: depth=%d", depthSize);
            foundDepth = JNI_TRUE;
            break;
        } else {
            // this depth format didn't work, so delete and try another format
            J2dTraceLn2(J2D_TRACE_VERBOSE,
                        "  framebuffer is incomplete: depth=%d status=%x",
                        depthSize, status);
            j2d_glDeleteRenderbuffersEXT(1, &depthTmpID);
        }
    }

    // unbind the texture and framebuffer objects (they will be bound again
    // later as needed)
    j2d_glBindTexture(textureTarget, 0);
    j2d_glBindRenderbufferEXT(GL_RENDERBUFFER_EXT, 0);
    j2d_glBindFramebufferEXT(GL_FRAMEBUFFER_EXT, 0);

    if (!foundDepth) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
            "OGLSD_InitFBObject: could not find valid depth format");
        j2d_glDeleteFramebuffersEXT(1, &fboTmpID);
        return JNI_FALSE;
    }

    *fbobjectID = fboTmpID;
    *depthID = depthTmpID;

    return JNI_TRUE;
}
Ejemplo n.º 9
0
/**
 * Initializes an OpenGL texture object.
 *
 * If the isOpaque parameter is JNI_FALSE, then the texture will have a
 * full alpha channel; otherwise, the texture will be opaque (this can
 * help save VRAM when translucency is not needed).
 *
 * If the GL_ARB_texture_non_power_of_two extension is present (texNonPow2
 * is JNI_TRUE), the actual texture is allowed to have non-power-of-two
 * dimensions, and therefore width==textureWidth and height==textureHeight.
 *
 * Failing that, if the GL_ARB_texture_rectangle extension is present
 * (texRect is JNI_TRUE), the actual texture is allowed to have
 * non-power-of-two dimensions, except that instead of using the usual
 * GL_TEXTURE_2D target, we need to use the GL_TEXTURE_RECTANGLE_ARB target.
 * Note that the GL_REPEAT wrapping mode is not allowed with this target,
 * so if that mode is needed (e.g. as is the case in the TexturePaint code)
 * one should pass JNI_FALSE to avoid using this extension.  Also note that
 * when the texture target is GL_TEXTURE_RECTANGLE_ARB, texture coordinates
 * must be specified in the range [0,width] and [0,height] rather than
 * [0,1] as is the case with the usual GL_TEXTURE_2D target (so take care)!
 *
 * Otherwise, the actual texture must have power-of-two dimensions, and
 * therefore the textureWidth and textureHeight will be the next
 * power-of-two greater than (or equal to) the requested width and height.
 */
static jboolean
OGLSD_InitTextureObject(OGLSDOps *oglsdo,
                        jboolean isOpaque,
                        jboolean texNonPow2, jboolean texRect,
                        jint width, jint height)
{
    GLenum texTarget, texProxyTarget;
    GLint format = isOpaque ? GL_RGB : GL_RGBA;
    GLuint texID;
    GLsizei texWidth, texHeight, realWidth, realHeight;
    GLint texMax;

    J2dTraceLn4(J2D_TRACE_INFO,
                "OGLSD_InitTextureObject: w=%d h=%d opq=%d nonpow2=%d",
                width, height, isOpaque, texNonPow2);

    if (oglsdo == NULL) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
                      "OGLSD_InitTextureObject: ops are null");
        return JNI_FALSE;
    }

    if (texNonPow2) {
        // use non-pow2 dimensions with GL_TEXTURE_2D target
        j2d_glGetIntegerv(GL_MAX_TEXTURE_SIZE, &texMax);
        texWidth = (width <= texMax) ? width : 0;
        texHeight = (height <= texMax) ? height : 0;
        texTarget = GL_TEXTURE_2D;
        texProxyTarget = GL_PROXY_TEXTURE_2D;
    } else if (texRect) {
        // use non-pow2 dimensions with GL_TEXTURE_RECTANGLE_ARB target
        j2d_glGetIntegerv(GL_MAX_RECTANGLE_TEXTURE_SIZE_ARB, &texMax);
        texWidth = (width <= texMax) ? width : 0;
        texHeight = (height <= texMax) ? height : 0;
        texTarget = GL_TEXTURE_RECTANGLE_ARB;
        texProxyTarget = GL_PROXY_TEXTURE_RECTANGLE_ARB;
    } else {
        // find the appropriate power-of-two dimensions
        j2d_glGetIntegerv(GL_MAX_TEXTURE_SIZE, &texMax);
        texWidth = OGLSD_NextPowerOfTwo(width, texMax);
        texHeight = OGLSD_NextPowerOfTwo(height, texMax);
        texTarget = GL_TEXTURE_2D;
        texProxyTarget = GL_PROXY_TEXTURE_2D;
    }

    J2dTraceLn3(J2D_TRACE_VERBOSE,
                "  desired texture dimensions: w=%d h=%d max=%d",
                texWidth, texHeight, texMax);

    // if either dimension is 0, we cannot allocate a texture with the
    // requested dimensions
    if ((texWidth == 0) || (texHeight == 0)) {
        J2dRlsTraceLn(J2D_TRACE_ERROR,
            "OGLSD_InitTextureObject: texture dimensions too large");
        return JNI_FALSE;
    }

    // now use a proxy to determine whether we can create a texture with
    // the calculated power-of-two dimensions and the given internal format
    j2d_glTexImage2D(texProxyTarget, 0, format,
                     texWidth, texHeight, 0,
                     format, GL_UNSIGNED_BYTE, NULL);
    j2d_glGetTexLevelParameteriv(texProxyTarget, 0,
                                 GL_TEXTURE_WIDTH, &realWidth);
    j2d_glGetTexLevelParameteriv(texProxyTarget, 0,
                                 GL_TEXTURE_HEIGHT, &realHeight);

    // if the requested dimensions and proxy dimensions don't match,
    // we shouldn't attempt to create the texture
    if ((realWidth != texWidth) || (realHeight != texHeight)) {
        J2dRlsTraceLn2(J2D_TRACE_ERROR,
            "OGLSD_InitTextureObject: actual (w=%d h=%d) != requested",
                       realWidth, realHeight);
        return JNI_FALSE;
    }

    // initialize the texture with some dummy data (this allows us to create
    // a texture object once with 2^n dimensions, and then use
    // glTexSubImage2D() to provide further updates)
    j2d_glGenTextures(1, &texID);
    j2d_glBindTexture(texTarget, texID);
    j2d_glTexImage2D(texTarget, 0, format,
                     texWidth, texHeight, 0,
                     format, GL_UNSIGNED_BYTE, NULL);

    oglsdo->isOpaque = isOpaque;
    oglsdo->xOffset = 0;
    oglsdo->yOffset = 0;
    oglsdo->width = width;
    oglsdo->height = height;
    oglsdo->textureID = texID;
    oglsdo->textureWidth = texWidth;
    oglsdo->textureHeight = texHeight;
    oglsdo->textureTarget = texTarget;
    OGLSD_INIT_TEXTURE_FILTER(oglsdo, GL_NEAREST);
    OGLSD_RESET_TEXTURE_WRAP(texTarget);

    J2dTraceLn3(J2D_TRACE_VERBOSE, "  created texture: w=%d h=%d id=%d",
                width, height, texID);

    return JNI_TRUE;
}