1 /*------------------------------------------------------------------------- 2 * drawElements Quality Program Tester Core 3 * ---------------------------------------- 4 * 5 * Copyright 2014 The Android Open Source Project 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 * 19 *//*! 20 * \file 21 * \brief RGBA8888 color type. 22 *//*--------------------------------------------------------------------*/ 23 24 #include "tcuRGBA.hpp" 25 #include "tcuVector.hpp" 26 27 namespace tcu 28 { 29 30 const RGBA RGBA::red (0xFF, 0x0, 0x0, 0xFF); 31 const RGBA RGBA::green (0x0, 0xFF, 0x0, 0xFF); 32 const RGBA RGBA::blue (0x0, 0x0, 0xFF, 0xFF); 33 const RGBA RGBA::gray (0x80, 0x80, 0x80, 0xFF); 34 const RGBA RGBA::white (0xFF, 0xFF, 0xFF, 0xFF); 35 const RGBA RGBA::black (0x0, 0x0, 0x0, 0xFF); 36 37 RGBA::RGBA (const Vec4& v) 38 { 39 int r = deClamp32(int(v.x() * 255.0f + 0.5f), 0, 255); 40 int g = deClamp32(int(v.y() * 255.0f + 0.5f), 0, 255); 41 int b = deClamp32(int(v.z() * 255.0f + 0.5f), 0, 255); 42 int a = deClamp32(int(v.w() * 255.0f + 0.5f), 0, 255); 43 m_value = (a << ALPHA_SHIFT) | (r << RED_SHIFT) | (g << GREEN_SHIFT) | (b << BLUE_SHIFT); 44 } 45 46 Vec4 RGBA::toVec (void) const 47 { 48 return Vec4(float(getRed()) / 255.0f, 49 float(getGreen()) / 255.0f, 50 float(getBlue()) / 255.0f, 51 float(getAlpha()) / 255.0f); 52 } 53 54 IVec4 RGBA::toIVec (void) const 55 { 56 return IVec4(getRed(), getGreen(), getBlue(), getAlpha()); 57 } 58 59 RGBA computeAbsDiffMasked (RGBA a, RGBA b, deUint32 cmpMask) 60 { 61 deUint32 aPacked = a.getPacked(); 62 deUint32 bPacked = b.getPacked(); 63 deUint8 rDiff = 0; 64 deUint8 gDiff = 0; 65 deUint8 bDiff = 0; 66 deUint8 aDiff = 0; 67 68 if (cmpMask & RGBA::RED_MASK) 69 { 70 int ra = (aPacked >> RGBA::RED_SHIFT) & 0xFF; 71 int rb = (bPacked >> RGBA::RED_SHIFT) & 0xFF; 72 73 rDiff = (deUint8)deAbs32(ra - rb); 74 } 75 76 if (cmpMask & RGBA::GREEN_MASK) 77 { 78 int ga = (aPacked >> RGBA::GREEN_SHIFT) & 0xFF; 79 int gb = (bPacked >> RGBA::GREEN_SHIFT) & 0xFF; 80 81 gDiff = (deUint8)deAbs32(ga - gb); 82 } 83 84 if (cmpMask & RGBA::BLUE_MASK) 85 { 86 int ba = (aPacked >> RGBA::BLUE_SHIFT) & 0xFF; 87 int bb = (bPacked >> RGBA::BLUE_SHIFT) & 0xFF; 88 89 bDiff = (deUint8)deAbs32(ba - bb); 90 } 91 92 if (cmpMask & RGBA::ALPHA_MASK) 93 { 94 int aa = (aPacked >> RGBA::ALPHA_SHIFT) & 0xFF; 95 int ab = (bPacked >> RGBA::ALPHA_SHIFT) & 0xFF; 96 97 aDiff = (deUint8)deAbs32(aa - ab); 98 } 99 100 return RGBA(rDiff,gDiff,bDiff,aDiff); 101 } 102 103 bool compareThresholdMasked (RGBA a, RGBA b, RGBA threshold, deUint32 cmpMask) 104 { 105 return computeAbsDiffMasked(a, b, cmpMask).isBelowThreshold(threshold); 106 } 107 108 } // tcu 109
