1 // Copyright (c) 2012- PPSSPP Project. 2 3 // This program is free software: you can redistribute it and/or modify 4 // it under the terms of the GNU General Public License as published by 5 // the Free Software Foundation, version 2.0 or later versions. 6 7 // This program is distributed in the hope that it will be useful, 8 // but WITHOUT ANY WARRANTY; without even the implied warranty of 9 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 10 // GNU General Public License 2.0 for more details. 11 12 // A copy of the GPL 2.0 should have been included with the program. 13 // If not, see http://www.gnu.org/licenses/ 14 15 // Official git repository and contact information can be found at 16 // https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/. 17 18 #pragma once 19 20 #include "Common/CommonTypes.h" 21 #include "Common/MemoryUtil.h" 22 23 #include <vector> 24 25 static const int MIN_TEXSCALE_LINES_PER_THREAD = 4; 26 27 class TextureScalerCommon { 28 public: 29 TextureScalerCommon(); 30 ~TextureScalerCommon(); 31 32 void ScaleAlways(u32 *out, u32 *src, u32 &dstFmt, int &width, int &height, int factor); 33 bool Scale(u32 *&data, u32 &dstfmt, int &width, int &height, int factor); 34 bool ScaleInto(u32 *out, u32 *src, u32 &dstfmt, int &width, int &height, int factor); 35 36 enum { XBRZ = 0, HYBRID = 1, BICUBIC = 2, HYBRID_BICUBIC = 3 }; 37 38 protected: 39 virtual void ConvertTo8888(u32 format, u32 *source, u32 *&dest, int width, int height) = 0; 40 virtual int BytesPerPixel(u32 format) = 0; 41 virtual u32 Get8888Format() = 0; 42 43 void ScaleXBRZ(int factor, u32* source, u32* dest, int width, int height); 44 void ScaleBilinear(int factor, u32* source, u32* dest, int width, int height); 45 void ScaleBicubicBSpline(int factor, u32* source, u32* dest, int width, int height); 46 void ScaleBicubicMitchell(int factor, u32* source, u32* dest, int width, int height); 47 void ScaleHybrid(int factor, u32* source, u32* dest, int width, int height, bool bicubic = false); 48 49 void DePosterize(u32* source, u32* dest, int width, int height); 50 51 bool IsEmptyOrFlat(u32* data, int pixels, int fmt); 52 53 // depending on the factor and texture sizes, these can get pretty large 54 // maximum is (100 MB total for a 512 by 512 texture with scaling factor 5 and hybrid scaling) 55 // of course, scaling factor 5 is totally silly anyway 56 SimpleBuf<u32> bufInput, bufDeposter, bufOutput, bufTmp1, bufTmp2, bufTmp3; 57 }; 58