J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003 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 | |
| 27 | /* |
| 28 | * FUNCTION |
| 29 | * Internal functions for mlib_ImageAffine with Nearest Neighbor filtering. |
| 30 | */ |
| 31 | |
| 32 | #include "mlib_ImageAffine.h" |
| 33 | |
| 34 | /***************************************************************/ |
| 35 | #define DECLAREVAR_BIT() \ |
| 36 | DECLAREVAR0(); \ |
| 37 | mlib_s32 ySrc; \ |
| 38 | DTYPE *srcPixelPtr; \ |
| 39 | DTYPE *srcPixelPtr0; \ |
| 40 | DTYPE *srcPixelPtr1; \ |
| 41 | DTYPE *srcPixelPtr2; \ |
| 42 | DTYPE *srcPixelPtr3; \ |
| 43 | DTYPE *srcPixelPtr4; \ |
| 44 | DTYPE *srcPixelPtr5; \ |
| 45 | DTYPE *srcPixelPtr6; \ |
| 46 | DTYPE *srcPixelPtr7 |
| 47 | |
| 48 | /***************************************************************/ |
| 49 | #define CLIP_BIT() \ |
| 50 | dstData += dstYStride; \ |
| 51 | xLeft = leftEdges[j] + d_bitoff; \ |
| 52 | xRight = rightEdges[j] + d_bitoff; \ |
| 53 | X = xStarts[j] + (s_bitoff << MLIB_SHIFT); \ |
| 54 | Y = yStarts[j]; \ |
| 55 | if (xLeft > xRight) continue |
| 56 | |
| 57 | /***************************************************************/ |
| 58 | #define DTYPE mlib_u8 |
| 59 | |
| 60 | void mlib_ImageAffine_bit_1ch_nn(mlib_affine_param *param, |
| 61 | mlib_s32 s_bitoff, |
| 62 | mlib_s32 d_bitoff) |
| 63 | { |
| 64 | DECLAREVAR_BIT(); |
| 65 | mlib_s32 i, bit, res; |
| 66 | |
| 67 | for (j = yStart; j <= yFinish; j++) { |
| 68 | |
| 69 | CLIP_BIT(); |
| 70 | xRight++; |
| 71 | |
| 72 | i = xLeft; |
| 73 | |
| 74 | if (i & 7) { |
| 75 | mlib_u8 *dp = dstData + (i >> 3); |
| 76 | mlib_s32 res = dp[0]; |
| 77 | mlib_s32 i_end = i + (8 - (i & 7)); |
| 78 | |
| 79 | if (i_end > xRight) |
| 80 | i_end = xRight; |
| 81 | |
| 82 | for (; i < i_end; i++) { |
| 83 | bit = 7 - (i & 7); |
| 84 | ySrc = MLIB_POINTER_SHIFT(Y); |
| 85 | srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc); |
| 86 | |
| 87 | res = (res & ~(1 << bit)) | (((srcPixelPtr[X >> (MLIB_SHIFT + 3)] >> (7 - (X >> MLIB_SHIFT) & 7)) & 1) << |
| 88 | bit); |
| 89 | |
| 90 | X += dX; |
| 91 | Y += dY; |
| 92 | } |
| 93 | |
| 94 | dp[0] = res; |
| 95 | } |
| 96 | |
| 97 | #ifdef __SUNPRO_C |
| 98 | #pragma pipeloop(0) |
| 99 | #endif /* __SUNPRO_C */ |
| 100 | for (; i <= (xRight - 8); i += 8) { |
| 101 | srcPixelPtr0 = MLIB_POINTER_GET(lineAddr, MLIB_POINTER_SHIFT(Y)); |
| 102 | Y += dY; |
| 103 | res = ((srcPixelPtr0[X >> (MLIB_SHIFT + 3)] << (((X >> MLIB_SHIFT)) & 7)) & 0x0080); |
| 104 | X += dX; |
| 105 | |
| 106 | srcPixelPtr1 = MLIB_POINTER_GET(lineAddr, MLIB_POINTER_SHIFT(Y)); |
| 107 | Y += dY; |
| 108 | res |= ((srcPixelPtr1[X >> (MLIB_SHIFT + 3)] << (((X >> MLIB_SHIFT) - 1) & 7)) & 0x4040); |
| 109 | X += dX; |
| 110 | |
| 111 | srcPixelPtr2 = MLIB_POINTER_GET(lineAddr, MLIB_POINTER_SHIFT(Y)); |
| 112 | Y += dY; |
| 113 | res |= ((srcPixelPtr2[X >> (MLIB_SHIFT + 3)] << (((X >> MLIB_SHIFT) - 2) & 7)) & 0x2020); |
| 114 | X += dX; |
| 115 | |
| 116 | srcPixelPtr3 = MLIB_POINTER_GET(lineAddr, MLIB_POINTER_SHIFT(Y)); |
| 117 | Y += dY; |
| 118 | res |= ((srcPixelPtr3[X >> (MLIB_SHIFT + 3)] << (((X >> MLIB_SHIFT) - 3) & 7)) & 0x1010); |
| 119 | X += dX; |
| 120 | |
| 121 | srcPixelPtr4 = MLIB_POINTER_GET(lineAddr, MLIB_POINTER_SHIFT(Y)); |
| 122 | Y += dY; |
| 123 | res |= ((srcPixelPtr4[X >> (MLIB_SHIFT + 3)] << (((X >> MLIB_SHIFT) - 4) & 7)) & 0x0808); |
| 124 | X += dX; |
| 125 | |
| 126 | srcPixelPtr5 = MLIB_POINTER_GET(lineAddr, MLIB_POINTER_SHIFT(Y)); |
| 127 | Y += dY; |
| 128 | res |= ((srcPixelPtr5[X >> (MLIB_SHIFT + 3)] << (((X >> MLIB_SHIFT) - 5) & 7)) & 0x0404); |
| 129 | X += dX; |
| 130 | |
| 131 | srcPixelPtr6 = MLIB_POINTER_GET(lineAddr, MLIB_POINTER_SHIFT(Y)); |
| 132 | Y += dY; |
| 133 | res |= ((srcPixelPtr6[X >> (MLIB_SHIFT + 3)] << (((X >> MLIB_SHIFT) - 6) & 7)) & 0x0202); |
| 134 | X += dX; |
| 135 | |
| 136 | srcPixelPtr7 = MLIB_POINTER_GET(lineAddr, MLIB_POINTER_SHIFT(Y)); |
| 137 | Y += dY; |
| 138 | res |= ((srcPixelPtr7[X >> (MLIB_SHIFT + 3)] >> (7 - ((X >> MLIB_SHIFT) & 7))) & 0x0001); |
| 139 | X += dX; |
| 140 | |
| 141 | dstData[i >> 3] = res | (res >> 8); |
| 142 | } |
| 143 | |
| 144 | if (i < xRight) { |
| 145 | mlib_u8 *dp = dstData + (i >> 3); |
| 146 | mlib_s32 res = dp[0]; |
| 147 | |
| 148 | for (; i < xRight; i++) { |
| 149 | bit = 7 - (i & 7); |
| 150 | ySrc = MLIB_POINTER_SHIFT(Y); |
| 151 | srcPixelPtr = MLIB_POINTER_GET(lineAddr, ySrc); |
| 152 | |
| 153 | res = (res & ~(1 << bit)) | (((srcPixelPtr[X >> (MLIB_SHIFT + 3)] >> (7 - (X >> MLIB_SHIFT) & 7)) & 1) << bit); |
| 154 | |
| 155 | X += dX; |
| 156 | Y += dY; |
| 157 | } |
| 158 | |
| 159 | dp[0] = res; |
| 160 | } |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | /***************************************************************/ |