J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2007 Sun Microsystems, Inc. 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #include <jni.h> |
| 27 | #include <jlong.h> |
| 28 | #include <jni_util.h> |
| 29 | #include "sun_java2d_pipe_BufferedMaskBlit.h" |
| 30 | #include "sun_java2d_pipe_BufferedOpCodes.h" |
| 31 | #include "Trace.h" |
| 32 | #include "GraphicsPrimitiveMgr.h" |
| 33 | #include "IntArgb.h" |
| 34 | #include "IntRgb.h" |
| 35 | #include "IntBgr.h" |
| 36 | |
| 37 | #define MAX_MASK_LENGTH (32 * 32) |
| 38 | extern unsigned char mul8table[256][256]; |
| 39 | |
| 40 | /** |
| 41 | * This implementation of MaskBlit first combines the source system memory |
| 42 | * tile with the corresponding alpha mask and stores the resulting |
| 43 | * IntArgbPre pixels directly into the RenderBuffer. Those pixels are |
| 44 | * then eventually pulled off the RenderBuffer and copied to the destination |
| 45 | * surface in OGL/D3DMaskBlit. |
| 46 | * |
| 47 | * Note that currently there are only inner loops defined for IntArgb, |
| 48 | * IntArgbPre, IntRgb, and IntBgr, as those are the most commonly used |
| 49 | * formats for this operation. |
| 50 | */ |
| 51 | JNIEXPORT jint JNICALL |
| 52 | Java_sun_java2d_pipe_BufferedMaskBlit_enqueueTile |
| 53 | (JNIEnv *env, jobject mb, |
| 54 | jlong buf, jint bpos, |
| 55 | jobject srcData, jlong pSrcOps, jint srcType, |
| 56 | jbyteArray maskArray, jint masklen, jint maskoff, jint maskscan, |
| 57 | jint srcx, jint srcy, jint dstx, jint dsty, |
| 58 | jint width, jint height) |
| 59 | { |
| 60 | SurfaceDataOps *srcOps = (SurfaceDataOps *)jlong_to_ptr(pSrcOps); |
| 61 | SurfaceDataRasInfo srcInfo; |
| 62 | unsigned char *pMask; |
| 63 | unsigned char *bbuf; |
| 64 | jint *pBuf; |
| 65 | |
| 66 | J2dTraceLn1(J2D_TRACE_INFO, |
| 67 | "BufferedMaskBlit_enqueueTile: bpos=%d", |
| 68 | bpos); |
| 69 | |
| 70 | if (srcOps == NULL) { |
| 71 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 72 | "BufferedMaskBlit_enqueueTile: srcOps is null"); |
| 73 | return bpos; |
| 74 | } |
| 75 | |
| 76 | bbuf = (unsigned char *)jlong_to_ptr(buf); |
| 77 | if (bbuf == NULL) { |
| 78 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 79 | "BufferedMaskBlit_enqueueTile: cannot get direct buffer address"); |
| 80 | return bpos; |
| 81 | } |
| 82 | pBuf = (jint *)(bbuf + bpos); |
| 83 | |
| 84 | if (JNU_IsNull(env, maskArray)) { |
| 85 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 86 | "BufferedMaskBlit_enqueueTile: mask array is null"); |
| 87 | return bpos; |
| 88 | } |
| 89 | |
| 90 | if (masklen > MAX_MASK_LENGTH) { |
| 91 | // REMIND: this approach is seriously flawed if the mask |
| 92 | // length is ever greater than MAX_MASK_LENGTH (won't fit |
| 93 | // into the cached mask tile); so far this hasn't |
| 94 | // been a problem though... |
| 95 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 96 | "BufferedMaskBlit_enqueueTile: mask array too large"); |
| 97 | return bpos; |
| 98 | } |
| 99 | |
| 100 | pMask = (*env)->GetPrimitiveArrayCritical(env, maskArray, 0); |
| 101 | if (pMask == NULL) { |
| 102 | J2dRlsTraceLn(J2D_TRACE_ERROR, |
| 103 | "BufferedMaskBlit_enqueueTile: cannot lock mask array"); |
| 104 | return bpos; |
| 105 | } |
| 106 | |
| 107 | srcInfo.bounds.x1 = srcx; |
| 108 | srcInfo.bounds.y1 = srcy; |
| 109 | srcInfo.bounds.x2 = srcx + width; |
| 110 | srcInfo.bounds.y2 = srcy + height; |
| 111 | |
| 112 | if (srcOps->Lock(env, srcOps, &srcInfo, SD_LOCK_READ) != SD_SUCCESS) { |
| 113 | J2dRlsTraceLn(J2D_TRACE_WARNING, |
| 114 | "BufferedMaskBlit_enqueueTile: could not acquire lock"); |
| 115 | (*env)->ReleasePrimitiveArrayCritical(env, maskArray, |
| 116 | pMask, JNI_ABORT); |
| 117 | return bpos; |
| 118 | } |
| 119 | |
| 120 | if (srcInfo.bounds.x2 > srcInfo.bounds.x1 && |
| 121 | srcInfo.bounds.y2 > srcInfo.bounds.y1) |
| 122 | { |
| 123 | srcOps->GetRasInfo(env, srcOps, &srcInfo); |
| 124 | if (srcInfo.rasBase) { |
| 125 | jint h; |
| 126 | jint srcScanStride = srcInfo.scanStride; |
| 127 | jint srcPixelStride = srcInfo.pixelStride; |
| 128 | jint *pSrc = (jint *) |
| 129 | PtrCoord(srcInfo.rasBase, |
| 130 | srcInfo.bounds.x1, srcInfo.pixelStride, |
| 131 | srcInfo.bounds.y1, srcInfo.scanStride); |
| 132 | |
| 133 | width = srcInfo.bounds.x2 - srcInfo.bounds.x1; |
| 134 | height = srcInfo.bounds.y2 - srcInfo.bounds.y1; |
| 135 | maskoff += ((srcInfo.bounds.y1 - srcy) * maskscan + |
| 136 | (srcInfo.bounds.x1 - srcx)); |
| 137 | maskscan -= width; |
| 138 | pMask += maskoff; |
| 139 | srcScanStride -= width * srcPixelStride; |
| 140 | h = height; |
| 141 | |
| 142 | J2dTraceLn4(J2D_TRACE_VERBOSE, |
| 143 | " sx=%d sy=%d w=%d h=%d", |
| 144 | srcInfo.bounds.x1, srcInfo.bounds.y1, width, height); |
| 145 | J2dTraceLn2(J2D_TRACE_VERBOSE, |
| 146 | " maskoff=%d maskscan=%d", |
| 147 | maskoff, maskscan); |
| 148 | J2dTraceLn2(J2D_TRACE_VERBOSE, |
| 149 | " pixstride=%d scanstride=%d", |
| 150 | srcPixelStride, srcScanStride); |
| 151 | |
| 152 | // enqueue parameters |
| 153 | pBuf[0] = sun_java2d_pipe_BufferedOpCodes_MASK_BLIT; |
| 154 | pBuf[1] = dstx; |
| 155 | pBuf[2] = dsty; |
| 156 | pBuf[3] = width; |
| 157 | pBuf[4] = height; |
| 158 | pBuf += 5; |
| 159 | bpos += 5 * sizeof(jint); |
| 160 | |
| 161 | // apply alpha values from mask to the source tile, and store |
| 162 | // resulting IntArgbPre pixels into RenderBuffer (there are |
| 163 | // separate inner loops for the most common source formats) |
| 164 | switch (srcType) { |
| 165 | case sun_java2d_pipe_BufferedMaskBlit_ST_INT_ARGB: |
| 166 | do { |
| 167 | jint w = width; |
| 168 | do { |
| 169 | jubyte pathA = *pMask++; |
| 170 | if (!pathA) { |
| 171 | pBuf[0] = 0; |
| 172 | } else { |
| 173 | jint cr, cg, cb, ca; |
| 174 | jubyte r, g, b, a; |
| 175 | LoadIntArgbTo4ByteArgb(pSrc, c, 0, ca, cr, cg, cb); |
| 176 | a = MUL8(ca, pathA); |
| 177 | r = MUL8(cr, a); |
| 178 | g = MUL8(cg, a); |
| 179 | b = MUL8(cb, a); |
| 180 | pBuf[0] = (a << 24) | (r << 16) | (g << 8) | b; |
| 181 | } |
| 182 | pSrc = PtrAddBytes(pSrc, srcPixelStride); |
| 183 | pBuf++; |
| 184 | } while (--w > 0); |
| 185 | pSrc = PtrAddBytes(pSrc, srcScanStride); |
| 186 | pMask = PtrAddBytes(pMask, maskscan); |
| 187 | } while (--h > 0); |
| 188 | break; |
| 189 | |
| 190 | case sun_java2d_pipe_BufferedMaskBlit_ST_INT_ARGB_PRE: |
| 191 | do { |
| 192 | jint w = width; |
| 193 | do { |
| 194 | jubyte pathA = *pMask++; |
| 195 | if (!pathA) { |
| 196 | pBuf[0] = 0; |
| 197 | } else if (pathA == 0xff) { |
| 198 | pBuf[0] = pSrc[0]; |
| 199 | } else { |
| 200 | jubyte r, g, b, a; |
| 201 | a = MUL8((pSrc[0] >> 24) & 0xff, pathA); |
| 202 | r = MUL8((pSrc[0] >> 16) & 0xff, pathA); |
| 203 | g = MUL8((pSrc[0] >> 8) & 0xff, pathA); |
| 204 | b = MUL8((pSrc[0] >> 0) & 0xff, pathA); |
| 205 | pBuf[0] = (a << 24) | (r << 16) | (g << 8) | b; |
| 206 | } |
| 207 | pSrc = PtrAddBytes(pSrc, srcPixelStride); |
| 208 | pBuf++; |
| 209 | } while (--w > 0); |
| 210 | pSrc = PtrAddBytes(pSrc, srcScanStride); |
| 211 | pMask = PtrAddBytes(pMask, maskscan); |
| 212 | } while (--h > 0); |
| 213 | break; |
| 214 | |
| 215 | case sun_java2d_pipe_BufferedMaskBlit_ST_INT_RGB: |
| 216 | do { |
| 217 | jint w = width; |
| 218 | do { |
| 219 | jubyte pathA = *pMask++; |
| 220 | if (!pathA) { |
| 221 | pBuf[0] = 0; |
| 222 | } else { |
| 223 | jint cr, cg, cb; |
| 224 | jubyte r, g, b, a; |
| 225 | LoadIntRgbTo3ByteRgb(pSrc, c, 0, cr, cg, cb); |
| 226 | a = pathA; |
| 227 | r = MUL8(cr, a); |
| 228 | g = MUL8(cg, a); |
| 229 | b = MUL8(cb, a); |
| 230 | pBuf[0] = (a << 24) | (r << 16) | (g << 8) | b; |
| 231 | } |
| 232 | pSrc = PtrAddBytes(pSrc, srcPixelStride); |
| 233 | pBuf++; |
| 234 | } while (--w > 0); |
| 235 | pSrc = PtrAddBytes(pSrc, srcScanStride); |
| 236 | pMask = PtrAddBytes(pMask, maskscan); |
| 237 | } while (--h > 0); |
| 238 | break; |
| 239 | |
| 240 | case sun_java2d_pipe_BufferedMaskBlit_ST_INT_BGR: |
| 241 | do { |
| 242 | jint w = width; |
| 243 | do { |
| 244 | jubyte pathA = *pMask++; |
| 245 | if (!pathA) { |
| 246 | pBuf[0] = 0; |
| 247 | } else { |
| 248 | jint cr, cg, cb; |
| 249 | jubyte r, g, b, a; |
| 250 | LoadIntBgrTo3ByteRgb(pSrc, c, 0, cr, cg, cb); |
| 251 | a = pathA; |
| 252 | r = MUL8(cr, a); |
| 253 | g = MUL8(cg, a); |
| 254 | b = MUL8(cb, a); |
| 255 | pBuf[0] = (a << 24) | (r << 16) | (g << 8) | b; |
| 256 | } |
| 257 | pSrc = PtrAddBytes(pSrc, srcPixelStride); |
| 258 | pBuf++; |
| 259 | } while (--w > 0); |
| 260 | pSrc = PtrAddBytes(pSrc, srcScanStride); |
| 261 | pMask = PtrAddBytes(pMask, maskscan); |
| 262 | } while (--h > 0); |
| 263 | break; |
| 264 | |
| 265 | default: |
| 266 | // should not get here, just no-op... |
| 267 | break; |
| 268 | } |
| 269 | |
| 270 | // increment current byte position |
| 271 | bpos += width * height * sizeof(jint); |
| 272 | } |
| 273 | SurfaceData_InvokeRelease(env, srcOps, &srcInfo); |
| 274 | } |
| 275 | SurfaceData_InvokeUnlock(env, srcOps, &srcInfo); |
| 276 | |
| 277 | (*env)->ReleasePrimitiveArrayCritical(env, maskArray, |
| 278 | pMask, JNI_ABORT); |
| 279 | |
| 280 | // return the current byte position |
| 281 | return bpos; |
| 282 | } |