1 /*
2 * Copyright (c) 2007, 2008, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include "sun_java2d_d3d_D3DMaskFill.h"
27
28 #include "D3DMaskFill.h"
29 #include "D3DRenderQueue.h"
30
31 /**
32 * This implementation first copies the alpha tile into a texture and then
33 * maps that texture to the destination surface. This approach appears to
34 * offer the best performance despite being a two-step process.
35 *
36 * Here are some descriptions of the many variables used in this method:
37 * x,y - upper left corner of the tile destination
38 * w,h - width/height of the mask tile
39 * x0 - placekeeper for the original destination x location
40 * tw,th - width/height of the actual texture tile in pixels
41 * sx1,sy1 - upper left corner of the mask tile source region
42 * sx2,sy2 - lower left corner of the mask tile source region
43 * sx,sy - "current" upper left corner of the mask tile region of interest
44 */
45 HRESULT
D3DMaskFill_MaskFill(D3DContext * d3dc,jint x,jint y,jint w,jint h,jint maskoff,jint maskscan,jint masklen,unsigned char * pMask)46 D3DMaskFill_MaskFill(D3DContext *d3dc,
47 jint x, jint y, jint w, jint h,
48 jint maskoff, jint maskscan, jint masklen,
49 unsigned char *pMask)
50 {
51 HRESULT res = S_OK;
52
53 J2dTraceLn(J2D_TRACE_INFO, "D3DMaskFill_MaskFill");
54
55 RETURN_STATUS_IF_NULL(d3dc, E_FAIL);
56
57 J2dTraceLn4(J2D_TRACE_VERBOSE, " x=%d y=%d w=%d h=%d", x, y, w, h);
58 J2dTraceLn2(J2D_TRACE_VERBOSE, " maskoff=%d maskscan=%d",
59 maskoff, maskscan);
60
61 {
62 D3DMaskCache *maskCache = d3dc->GetMaskCache();
63 jint tw, th, x0;
64 jint sx1, sy1, sx2, sy2;
65 jint sx, sy, sw, sh;
66
67 res = d3dc->BeginScene(STATE_MASKOP);
68 RETURN_STATUS_IF_FAILED(res);
69
70 x0 = x;
71 tw = D3D_MASK_CACHE_TILE_WIDTH;
72 th = D3D_MASK_CACHE_TILE_HEIGHT;
73 sx1 = maskoff % maskscan;
74 sy1 = maskoff / maskscan;
75 sx2 = sx1 + w;
76 sy2 = sy1 + h;
77
78 for (sy = sy1; sy < sy2; sy += th, y += th) {
79 x = x0;
80 sh = ((sy + th) > sy2) ? (sy2 - sy) : th;
81
82 for (sx = sx1; sx < sx2; sx += tw, x += tw) {
83 sw = ((sx + tw) > sx2) ? (sx2 - sx) : tw;
84
85 res = maskCache->AddMaskQuad(sx, sy, x, y, sw, sh,
86 maskscan, pMask);
87 }
88 }
89 }
90 return res;
91 }
92
93 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)94 Java_sun_java2d_d3d_D3DMaskFill_maskFill
95 (JNIEnv *env, jobject self,
96 jint x, jint y, jint w, jint h,
97 jint maskoff, jint maskscan, jint masklen,
98 jbyteArray maskArray)
99 {
100 D3DContext *d3dc = D3DRQ_GetCurrentContext();
101 unsigned char *mask;
102
103 J2dTraceLn(J2D_TRACE_ERROR, "D3DMaskFill_maskFill");
104
105 if (maskArray != NULL) {
106 mask = (unsigned char *)
107 env->GetPrimitiveArrayCritical(maskArray, NULL);
108 } else {
109 mask = NULL;
110 }
111
112 D3DMaskFill_MaskFill(d3dc,
113 x, y, w, h,
114 maskoff, maskscan, masklen, mask);
115
116 // reset current state, and ensure rendering is flushed to dest
117 if (d3dc != NULL) {
118 d3dc->FlushVertexQueue();
119 }
120
121 if (mask != NULL) {
122 env->ReleasePrimitiveArrayCritical(maskArray, mask, JNI_ABORT);
123 }
124 }
125