| /* | |
| * Copyright (c) 2000, 2013, 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 "jni_util.h" | |
| #include "GraphicsPrimitiveMgr.h" | |
| #include "LineUtils.h" | |
| #include "sun_java2d_loops_DrawPolygons.h" | |
| static void | |
| RefineBounds(SurfaceDataBounds *bounds, jint transX, jint transY, | |
| jint *xPointsPtr, jint *yPointsPtr, jint pointsNeeded) | |
| { | |
| jint xmin, ymin, xmax, ymax; | |
| if (pointsNeeded > 0) { | |
| xmin = xmax = transX + *xPointsPtr++; | |
| ymin = ymax = transY + *yPointsPtr++; | |
| while (--pointsNeeded > 0) { | |
| jint x = transX + *xPointsPtr++; | |
| jint y = transY + *yPointsPtr++; | |
| if (xmin > x) xmin = x; | |
| if (ymin > y) ymin = y; | |
| if (xmax < x) xmax = x; | |
| if (ymax < y) ymax = y; | |
| } | |
| if (++xmax < xmin) xmax--; | |
| if (++ymax < ymin) ymax--; | |
| if (bounds->x1 < xmin) bounds->x1 = xmin; | |
| if (bounds->y1 < ymin) bounds->y1 = ymin; | |
| if (bounds->x2 > xmax) bounds->x2 = xmax; | |
| if (bounds->y2 > ymax) bounds->y2 = ymax; | |
| } else { | |
| bounds->x2 = bounds->x1; | |
| bounds->y2 = bounds->y1; | |
| } | |
| } | |
| static void | |
| ProcessPoly(SurfaceDataRasInfo *pRasInfo, | |
| DrawLineFunc *pLine, | |
| NativePrimitive *pPrim, | |
| CompositeInfo *pCompInfo, | |
| jint pixel, jint transX, jint transY, | |
| jint *xPointsPtr, jint *yPointsPtr, | |
| jint *nPointsPtr, jint numPolys, | |
| jboolean close) | |
| { | |
| int i; | |
| for (i = 0; i < numPolys; i++) { | |
| jint numPts = nPointsPtr[i]; | |
| if (numPts > 1) { | |
| jint x0, y0, x1, y1; | |
| jboolean empty = JNI_TRUE; | |
| x0 = x1 = transX + *xPointsPtr++; | |
| y0 = y1 = transY + *yPointsPtr++; | |
| while (--numPts > 0) { | |
| jint x2 = transX + *xPointsPtr++; | |
| jint y2 = transY + *yPointsPtr++; | |
| empty = (empty && x1 == x2 && y1 == y2); | |
| LineUtils_ProcessLine(pRasInfo, pixel, pLine, | |
| pPrim, pCompInfo, | |
| x1, y1, x2, y2, | |
| (numPts > 1 || close)); | |
| x1 = x2; | |
| y1 = y2; | |
| } | |
| if (close && (empty || x1 != x0 || y1 != y0)) { | |
| LineUtils_ProcessLine(pRasInfo, pixel, pLine, | |
| pPrim, pCompInfo, | |
| x1, y1, x0, y0, !empty); | |
| } | |
| } else if (numPts == 1) { | |
| xPointsPtr++; | |
| yPointsPtr++; | |
| } | |
| } | |
| } | |
| /* | |
| * Class: sun_java2d_loops_DrawPolygons | |
| * Method: DrawPolygons | |
| * Signature: (Lsun/java2d/SunGraphics2D;Lsun/java2d/SurfaceData;[I[I[IIIIZ)V | |
| */ | |
| JNIEXPORT void JNICALL | |
| Java_sun_java2d_loops_DrawPolygons_DrawPolygons | |
| (JNIEnv *env, jobject self, | |
| jobject sg2d, jobject sData, | |
| jintArray xPointsArray, jintArray yPointsArray, | |
| jintArray nPointsArray, jint numPolys, | |
| jint transX, jint transY, jboolean close) | |
| { | |
| SurfaceDataOps *sdOps; | |
| SurfaceDataRasInfo rasInfo; | |
| NativePrimitive *pPrim; | |
| CompositeInfo compInfo; | |
| jsize nPointsLen, xPointsLen, yPointsLen; | |
| jint *nPointsPtr = NULL; | |
| jint *xPointsPtr = NULL; | |
| jint *yPointsPtr = NULL; | |
| jint pointsNeeded; | |
| jint i, ret; | |
| jboolean ok = JNI_TRUE; | |
| jint pixel = GrPrim_Sg2dGetPixel(env, sg2d); | |
| if (JNU_IsNull(env, xPointsArray) || JNU_IsNull(env, yPointsArray)) { | |
| JNU_ThrowNullPointerException(env, "coordinate array"); | |
| return; | |
| } | |
| if (JNU_IsNull(env, nPointsArray)) { | |
| JNU_ThrowNullPointerException(env, "polygon length array"); | |
| return; | |
| } | |
| nPointsLen = (*env)->GetArrayLength(env, nPointsArray); | |
| xPointsLen = (*env)->GetArrayLength(env, xPointsArray); | |
| yPointsLen = (*env)->GetArrayLength(env, yPointsArray); | |
| if (nPointsLen < numPolys) { | |
| JNU_ThrowArrayIndexOutOfBoundsException(env, | |
| "polygon length array size"); | |
| return; | |
| } | |
| pPrim = GetNativePrim(env, self); | |
| if (pPrim == NULL) { | |
| return; | |
| } | |
| if (pPrim->pCompType->getCompInfo != NULL) { | |
| GrPrim_Sg2dGetCompInfo(env, sg2d, pPrim, &compInfo); | |
| } | |
| sdOps = SurfaceData_GetOps(env, sData); | |
| if (sdOps == 0) { | |
| return; | |
| } | |
| GrPrim_Sg2dGetClip(env, sg2d, &rasInfo.bounds); | |
| ret = sdOps->Lock(env, sdOps, &rasInfo, SD_LOCK_FASTEST | pPrim->dstflags); | |
| if (ret == SD_FAILURE) { | |
| return; | |
| } | |
| nPointsPtr = (*env)->GetPrimitiveArrayCritical(env, nPointsArray, NULL); | |
| if (!nPointsPtr) { | |
| ok = JNI_FALSE; | |
| } | |
| if (ok) { | |
| pointsNeeded = 0; | |
| for (i = 0; i < numPolys; i++) { | |
| if (nPointsPtr[i] > 0) { | |
| pointsNeeded += nPointsPtr[i]; | |
| } | |
| } | |
| if (yPointsLen < pointsNeeded || xPointsLen < pointsNeeded) { | |
| (*env)->ReleasePrimitiveArrayCritical(env, nPointsArray, | |
| nPointsPtr, JNI_ABORT); | |
| SurfaceData_InvokeUnlock(env, sdOps, &rasInfo); | |
| JNU_ThrowArrayIndexOutOfBoundsException(env, | |
| "coordinate array length"); | |
| return; | |
| } | |
| xPointsPtr = (*env)->GetPrimitiveArrayCritical(env, xPointsArray, NULL); | |
| if (!xPointsPtr) { | |
| ok = JNI_FALSE; | |
| } | |
| if (ok) { | |
| yPointsPtr = (*env)->GetPrimitiveArrayCritical(env, yPointsArray, NULL); | |
| if (!yPointsPtr) { | |
| ok = JNI_FALSE; | |
| } | |
| } | |
| } | |
| if (ok) { | |
| if (ret == SD_SLOWLOCK) { | |
| RefineBounds(&rasInfo.bounds, transX, transY, | |
| xPointsPtr, yPointsPtr, pointsNeeded); | |
| ok = (rasInfo.bounds.x2 > rasInfo.bounds.x1 && | |
| rasInfo.bounds.y2 > rasInfo.bounds.y1); | |
| } | |
| } | |
| if (ok) { | |
| sdOps->GetRasInfo(env, sdOps, &rasInfo); | |
| if (rasInfo.rasBase && | |
| rasInfo.bounds.x2 > rasInfo.bounds.x1 && | |
| rasInfo.bounds.y2 > rasInfo.bounds.y1) | |
| { | |
| ProcessPoly(&rasInfo, pPrim->funcs.drawline, pPrim, &compInfo, | |
| pixel, transX, transY, | |
| xPointsPtr, yPointsPtr, | |
| nPointsPtr, numPolys, | |
| close); | |
| } | |
| SurfaceData_InvokeRelease(env, sdOps, &rasInfo); | |
| } | |
| if (nPointsPtr) { | |
| (*env)->ReleasePrimitiveArrayCritical(env, nPointsArray, | |
| nPointsPtr, JNI_ABORT); | |
| } | |
| if (xPointsPtr) { | |
| (*env)->ReleasePrimitiveArrayCritical(env, xPointsArray, | |
| xPointsPtr, JNI_ABORT); | |
| } | |
| if (yPointsPtr) { | |
| (*env)->ReleasePrimitiveArrayCritical(env, yPointsArray, | |
| yPointsPtr, JNI_ABORT); | |
| } | |
| SurfaceData_InvokeUnlock(env, sdOps, &rasInfo); | |
| } |