1 | /***********************************************************
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2 |
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3 | Copyright 1987, 1998 The Open Group
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4 |
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5 | Permission to use, copy, modify, distribute, and sell this software and its
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6 | documentation for any purpose is hereby granted without fee, provided that
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7 | the above copyright notice appear in all copies and that both that
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8 | copyright notice and this permission notice appear in supporting
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9 | documentation.
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10 |
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11 | The above copyright notice and this permission notice shall be included in
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12 | all copies or substantial portions of the Software.
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13 |
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14 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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15 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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16 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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17 | OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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18 | AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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19 | CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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20 |
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21 | Except as contained in this notice, the name of The Open Group shall not be
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22 | used in advertising or otherwise to promote the sale, use or other dealings
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23 | in this Software without prior written authorization from The Open Group.
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24 |
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25 |
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26 | Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
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27 |
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28 | All Rights Reserved
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29 |
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30 | Permission to use, copy, modify, and distribute this software and its
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31 | documentation for any purpose and without fee is hereby granted,
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32 | provided that the above copyright notice appear in all copies and that
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33 | both that copyright notice and this permission notice appear in
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34 | supporting documentation, and that the name of Digital not be
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35 | used in advertising or publicity pertaining to distribution of the
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36 | software without specific, written prior permission.
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37 |
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38 | DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
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39 | ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
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40 | DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
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41 | ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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42 | WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
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43 | ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
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44 | SOFTWARE.
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45 |
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46 | ******************************************************************/
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47 |
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48 | #ifndef REGIONSTRUCT_H
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49 | #define REGIONSTRUCT_H
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50 |
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51 | typedef struct pixman_region16 RegionRec, *RegionPtr;
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52 |
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53 | #include "miscstruct.h"
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54 |
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55 | /* Return values from RectIn() */
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56 |
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57 | #define rgnOUT 0
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58 | #define rgnIN 1
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59 | #define rgnPART 2
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60 |
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61 | #define NullRegion ((RegionPtr)0)
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62 |
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63 | /*
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64 | * clip region
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65 | */
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66 |
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67 | typedef struct pixman_region16_data RegDataRec, *RegDataPtr;
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68 |
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69 | extern BoxRec miEmptyBox;
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70 | extern RegDataRec miEmptyData;
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71 | extern RegDataRec miBrokenData;
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72 |
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73 | #define REGION_NIL(reg) ((reg)->data && !(reg)->data->numRects)
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74 | /* not a region */
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75 | #define REGION_NAR(reg) ((reg)->data == &miBrokenData)
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76 | #define REGION_NUM_RECTS(reg) ((reg)->data ? (reg)->data->numRects : 1)
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77 | #define REGION_SIZE(reg) ((reg)->data ? (reg)->data->size : 0)
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78 | #define REGION_RECTS(reg) ((reg)->data ? (BoxPtr)((reg)->data + 1) \
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79 | : &(reg)->extents)
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80 | #define REGION_BOXPTR(reg) ((BoxPtr)((reg)->data + 1))
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81 | #define REGION_BOX(reg,i) (®ION_BOXPTR(reg)[i])
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82 | #define REGION_TOP(reg) REGION_BOX(reg, (reg)->data->numRects)
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83 | #define REGION_END(reg) REGION_BOX(reg, (reg)->data->numRects - 1)
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84 | #define REGION_SZOF(n) (sizeof(RegDataRec) + ((n) * sizeof(BoxRec)))
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85 |
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86 | #define REGION_CREATE(_pScreen, _rect, _size) \
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87 | miRegionCreate(_rect, _size)
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88 |
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89 | #define REGION_COPY(_pScreen, dst, src) \
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90 | miRegionCopy(dst, src)
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91 |
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92 | #define REGION_DESTROY(_pScreen, _pReg) \
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93 | miRegionDestroy(_pReg)
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94 |
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95 | #define REGION_INTERSECT(_pScreen, newReg, reg1, reg2) \
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96 | miIntersect(newReg, reg1, reg2)
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97 |
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98 | #define REGION_UNION(_pScreen, newReg, reg1, reg2) \
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99 | miUnion(newReg, reg1, reg2)
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100 |
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101 | #define REGION_SUBTRACT(_pScreen, newReg, reg1, reg2) \
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102 | miSubtract(newReg, reg1, reg2)
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103 |
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104 | #define REGION_INVERSE(_pScreen, newReg, reg1, invRect) \
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105 | miInverse(newReg, reg1, invRect)
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106 |
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107 | #define REGION_TRANSLATE(_pScreen, _pReg, _x, _y) \
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108 | miTranslateRegion(_pReg, _x, _y)
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109 |
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110 | #define RECT_IN_REGION(_pScreen, _pReg, prect) \
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111 | miRectIn(_pReg, prect)
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112 |
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113 | #define POINT_IN_REGION(_pScreen, _pReg, _x, _y, prect) \
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114 | miPointInRegion(_pReg, _x, _y, prect)
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115 |
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116 | #define REGION_APPEND(_pScreen, dstrgn, rgn) \
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117 | miRegionAppend(dstrgn, rgn)
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118 |
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119 | #define REGION_VALIDATE(_pScreen, badreg, pOverlap) \
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120 | miRegionValidate(badreg, pOverlap)
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121 |
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122 | #define BITMAP_TO_REGION(_pScreen, pPix) \
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123 | (*(_pScreen)->BitmapToRegion)(pPix) /* no mi version?! */
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124 |
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125 | #define RECTS_TO_REGION(_pScreen, nrects, prect, ctype) \
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126 | miRectsToRegion(nrects, prect, ctype)
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127 |
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128 | #define REGION_EQUAL(_pScreen, _pReg1, _pReg2) \
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129 | miRegionEqual(_pReg1, _pReg2)
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130 |
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131 | #define REGION_BREAK(_pScreen, _pReg) \
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132 | miRegionBreak(_pReg)
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133 |
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134 | #ifdef DONT_INLINE_REGION_OPS
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135 |
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136 | #define REGION_INIT(_pScreen, _pReg, _rect, _size) \
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137 | miRegionInit(_pReg, _rect, _size)
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138 |
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139 | #define REGION_UNINIT(_pScreen, _pReg) \
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140 | miRegionUninit(_pReg)
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141 |
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142 | #define REGION_RESET(_pScreen, _pReg, _pBox) \
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143 | miRegionReset(_pReg, _pBox)
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144 |
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145 | #define REGION_NOTEMPTY(_pScreen, _pReg) \
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146 | miRegionNotEmpty(_pReg)
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147 |
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148 | #define REGION_BROKEN(_pScreen, _pReg) \
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149 | miRegionBroken(_pReg)
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150 |
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151 | #define REGION_EMPTY(_pScreen, _pReg) \
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152 | miRegionEmpty(_pReg)
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153 |
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154 | #define REGION_EXTENTS(_pScreen, _pReg) \
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155 | miRegionExtents(_pReg)
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156 |
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157 | #else /* inline certain simple region ops for performance */
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158 |
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159 | #define REGION_INIT(_pScreen, _pReg, _rect, _size) \
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160 | { \
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161 | if (_rect) \
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162 | { \
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163 | (_pReg)->extents = *(_rect); \
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164 | (_pReg)->data = (RegDataPtr)NULL; \
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165 | } \
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166 | else \
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167 | { \
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168 | (_pReg)->extents = miEmptyBox; \
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169 | if (((_size) > 1) && ((_pReg)->data = \
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170 | (RegDataPtr)xalloc(REGION_SZOF(_size)))) \
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171 | { \
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172 | (_pReg)->data->size = (_size); \
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173 | (_pReg)->data->numRects = 0; \
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174 | } \
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175 | else \
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176 | (_pReg)->data = &miEmptyData; \
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177 | } \
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178 | }
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179 |
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180 |
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181 | #define REGION_UNINIT(_pScreen, _pReg) \
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182 | { \
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183 | if ((_pReg)->data && (_pReg)->data->size) { \
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184 | xfree((_pReg)->data); \
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185 | (_pReg)->data = NULL; \
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186 | } \
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187 | }
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188 |
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189 | #define REGION_RESET(_pScreen, _pReg, _pBox) \
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190 | { \
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191 | (_pReg)->extents = *(_pBox); \
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192 | REGION_UNINIT(_pScreen, _pReg); \
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193 | (_pReg)->data = (RegDataPtr)NULL; \
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194 | }
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195 |
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196 | #define REGION_NOTEMPTY(_pScreen, _pReg) \
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197 | !REGION_NIL(_pReg)
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198 |
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199 | #define REGION_BROKEN(_pScreen, _pReg) \
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200 | REGION_NAR(_pReg)
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201 |
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202 | #define REGION_EMPTY(_pScreen, _pReg) \
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203 | { \
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204 | REGION_UNINIT(_pScreen, _pReg); \
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205 | (_pReg)->extents.x2 = (_pReg)->extents.x1; \
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206 | (_pReg)->extents.y2 = (_pReg)->extents.y1; \
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207 | (_pReg)->data = &miEmptyData; \
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208 | }
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209 |
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210 | #define REGION_EXTENTS(_pScreen, _pReg) \
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211 | (&(_pReg)->extents)
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212 |
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213 | #define REGION_NULL(_pScreen, _pReg) \
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214 | { \
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215 | (_pReg)->extents = miEmptyBox; \
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216 | (_pReg)->data = &miEmptyData; \
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217 | }
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218 |
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219 | #endif /* DONT_INLINE_REGION_OPS */
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220 |
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221 | #ifndef REGION_NULL
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222 | #define REGION_NULL(_pScreen, _pReg) \
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223 | REGION_INIT(_pScreen, _pReg, NullBox, 1)
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224 | #endif
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225 |
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226 | /* moved from mi.h */
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227 |
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228 | extern void InitRegions (void);
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229 |
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230 | extern RegionPtr miRegionCreate(
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231 | BoxPtr /*rect*/,
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232 | int /*size*/);
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233 |
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234 | extern void miRegionInit(
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235 | RegionPtr /*pReg*/,
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236 | BoxPtr /*rect*/,
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237 | int /*size*/);
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238 |
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239 | extern void miRegionDestroy(
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240 | RegionPtr /*pReg*/);
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241 |
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242 | extern void miRegionUninit(
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243 | RegionPtr /*pReg*/);
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244 |
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245 | extern Bool miRegionCopy(
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246 | RegionPtr /*dst*/,
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247 | RegionPtr /*src*/);
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248 |
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249 | extern Bool miIntersect(
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250 | RegionPtr /*newReg*/,
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251 | RegionPtr /*reg1*/,
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252 | RegionPtr /*reg2*/);
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253 |
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254 | extern Bool miUnion(
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255 | RegionPtr /*newReg*/,
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256 | RegionPtr /*reg1*/,
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257 | RegionPtr /*reg2*/);
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258 |
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259 | extern Bool miRegionAppend(
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260 | RegionPtr /*dstrgn*/,
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261 | RegionPtr /*rgn*/);
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262 |
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263 | extern Bool miRegionValidate(
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264 | RegionPtr /*badreg*/,
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265 | Bool * /*pOverlap*/);
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266 |
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267 | extern RegionPtr miRectsToRegion(
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268 | int /*nrects*/,
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269 | xRectanglePtr /*prect*/,
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270 | int /*ctype*/);
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271 |
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272 | extern Bool miSubtract(
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273 | RegionPtr /*regD*/,
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274 | RegionPtr /*regM*/,
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275 | RegionPtr /*regS*/);
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276 |
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277 | extern Bool miInverse(
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278 | RegionPtr /*newReg*/,
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279 | RegionPtr /*reg1*/,
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280 | BoxPtr /*invRect*/);
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281 |
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282 | extern int miRectIn(
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283 | RegionPtr /*region*/,
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284 | BoxPtr /*prect*/);
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285 |
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286 | extern void miTranslateRegion(
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287 | RegionPtr /*pReg*/,
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288 | int /*x*/,
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289 | int /*y*/);
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290 |
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291 | extern void miRegionReset(
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292 | RegionPtr /*pReg*/,
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293 | BoxPtr /*pBox*/);
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294 |
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295 | extern Bool miRegionBreak(
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296 | RegionPtr /*pReg*/);
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297 |
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298 | extern Bool miPointInRegion(
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299 | RegionPtr /*pReg*/,
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300 | int /*x*/,
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301 | int /*y*/,
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302 | BoxPtr /*box*/);
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303 |
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304 | extern Bool miRegionEqual(
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305 | RegionPtr /*pReg1*/,
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306 | RegionPtr /*pReg2*/);
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307 |
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308 | extern Bool miRegionNotEmpty(
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309 | RegionPtr /*pReg*/);
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310 |
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311 | extern void miRegionEmpty(
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312 | RegionPtr /*pReg*/);
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313 |
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314 | extern BoxPtr miRegionExtents(
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315 | RegionPtr /*pReg*/);
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316 |
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317 | extern void miPrintRegion(
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318 | RegionPtr /*pReg*/);
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319 |
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320 | #endif /* REGIONSTRUCT_H */
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