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1 0 : /* 2 : 3 : OOTextureScaling.h 4 : 5 : Functions used to rescale texture maps. 6 : These are bottlenecks! They should be optimized or, better, replaced with use 7 : of an optimized library. 8 : 9 : 10 : Copyright (C) 2007-2013 Jens Ayton 11 : 12 : Permission is hereby granted, free of charge, to any person obtaining a copy 13 : of this software and associated documentation files (the "Software"), to deal 14 : in the Software without restriction, including without limitation the rights 15 : to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 16 : copies of the Software, and to permit persons to whom the Software is 17 : furnished to do so, subject to the following conditions: 18 : 19 : The above copyright notice and this permission notice shall be included in all 20 : copies or substantial portions of the Software. 21 : 22 : THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 23 : IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 24 : FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 25 : AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 26 : LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 27 : OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 28 : SOFTWARE. 29 : 30 : */ 31 : 32 : #import "OOPixMap.h" 33 : 34 : 35 : /* Assumes 8 bits per sample, interleaved. 36 : dstPixels must have space for dstWidth * dstHeight pixels (no row padding 37 : is generated). 38 : 39 : IMPORTANT: this will free() srcPixMap's pixels. 40 : */ 41 0 : OOPixMap OOScalePixMap(OOPixMap srcPixMap, OOPixMapDimension dstWidth, OOPixMapDimension dstHeight, BOOL leaveSpaceForMipMaps); 42 : 43 : 44 : /* Assumes 8 bits per sample, interleaved. 45 : Buffer must have space for (4 * width * height) / 3 pixels. 46 : */ 47 0 : BOOL OOGenerateMipMaps(void *textureBytes, OOPixMapDimension width, OOPixMapDimension height, OOPixMapFormat format);