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1 /* |
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2 * Copyright 2014 Google Inc. |
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3 * |
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4 * Use of this source code is governed by a BSD-style license that can be |
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5 * found in the LICENSE file. |
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6 */ |
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7 #ifndef SkDistanceFieldGen_DEFINED |
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8 #define SkDistanceFieldGen_DEFINED |
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9 |
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10 /** Given 8-bit mask data, generate the associated distance field |
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11 |
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12 * @param distanceField The distance field to be generated. Should already be allocated |
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13 * by the client with the padding below. |
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14 * @param image 8-bit mask we're using to generate the distance field. |
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15 * @param w Width of the image. |
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16 * @param h Height of the image. |
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17 * @param distanceMagnitude Largest possible absolute value for the distance. The distance field |
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18 * will be padded to w + 2*distanceMagnitude, h + 2*distanceMagnitude. |
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19 */ |
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20 bool SkGenerateDistanceFieldFromImage(unsigned char* distanceField, |
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21 const unsigned char* image, |
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22 int w, int h, |
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23 int distanceMagnitude); |
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24 |
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25 #endif |