| /* |
| * 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 "sun_java2d_d3d_D3DMaskFill.h" |
| |
| #include "D3DMaskFill.h" |
| #include "D3DRenderQueue.h" |
| |
| /** |
| * This implementation first copies the alpha tile into a texture and then |
| * maps that texture to the destination surface. This approach appears to |
| * offer the best performance despite being a two-step process. |
| * |
| * Here are some descriptions of the many variables used in this method: |
| * x,y - upper left corner of the tile destination |
| * w,h - width/height of the mask tile |
| * x0 - placekeeper for the original destination x location |
| * tw,th - width/height of the actual texture tile in pixels |
| * sx1,sy1 - upper left corner of the mask tile source region |
| * sx2,sy2 - lower left corner of the mask tile source region |
| * sx,sy - "current" upper left corner of the mask tile region of interest |
| */ |
| HRESULT |
| D3DMaskFill_MaskFill(D3DContext *d3dc, |
| jint x, jint y, jint w, jint h, |
| jint maskoff, jint maskscan, jint masklen, |
| unsigned char *pMask) |
| { |
| HRESULT res = S_OK; |
| |
| J2dTraceLn(J2D_TRACE_INFO, "D3DMaskFill_MaskFill"); |
| |
| RETURN_STATUS_IF_NULL(d3dc, E_FAIL); |
| |
| J2dTraceLn4(J2D_TRACE_VERBOSE, " x=%d y=%d w=%d h=%d", x, y, w, h); |
| J2dTraceLn2(J2D_TRACE_VERBOSE, " maskoff=%d maskscan=%d", |
| maskoff, maskscan); |
| |
| { |
| D3DMaskCache *maskCache = d3dc->GetMaskCache(); |
| jint tw, th, x0; |
| jint sx1, sy1, sx2, sy2; |
| jint sx, sy, sw, sh; |
| |
| res = d3dc->BeginScene(STATE_MASKOP); |
| RETURN_STATUS_IF_FAILED(res); |
| |
| x0 = x; |
| tw = D3D_MASK_CACHE_TILE_WIDTH; |
| th = D3D_MASK_CACHE_TILE_HEIGHT; |
| sx1 = maskoff % maskscan; |
| sy1 = maskoff / maskscan; |
| sx2 = sx1 + w; |
| sy2 = sy1 + h; |
| |
| for (sy = sy1; sy < sy2; sy += th, y += th) { |
| x = x0; |
| sh = ((sy + th) > sy2) ? (sy2 - sy) : th; |
| |
| for (sx = sx1; sx < sx2; sx += tw, x += tw) { |
| sw = ((sx + tw) > sx2) ? (sx2 - sx) : tw; |
| |
| res = maskCache->AddMaskQuad(sx, sy, x, y, sw, sh, |
| maskscan, pMask); |
| } |
| } |
| } |
| return res; |
| } |
| |
| JNIEXPORT void JNICALL |
| Java_sun_java2d_d3d_D3DMaskFill_maskFill |
| (JNIEnv *env, jobject self, |
| jint x, jint y, jint w, jint h, |
| jint maskoff, jint maskscan, jint masklen, |
| jbyteArray maskArray) |
| { |
| D3DContext *d3dc = D3DRQ_GetCurrentContext(); |
| unsigned char *mask; |
| |
| J2dTraceLn(J2D_TRACE_ERROR, "D3DMaskFill_maskFill"); |
| |
| if (maskArray != NULL) { |
| mask = (unsigned char *) |
| env->GetPrimitiveArrayCritical(maskArray, NULL); |
| } else { |
| mask = NULL; |
| } |
| |
| D3DMaskFill_MaskFill(d3dc, |
| x, y, w, h, |
| maskoff, maskscan, masklen, mask); |
| |
| // reset current state, and ensure rendering is flushed to dest |
| if (d3dc != NULL) { |
| d3dc->FlushVertexQueue(); |
| } |
| |
| if (mask != NULL) { |
| env->ReleasePrimitiveArrayCritical(maskArray, mask, JNI_ABORT); |
| } |
| } |