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 #include "tcuTextureUtil.hpp" 27 28 namespace tcu 29 { 30 31 RGBA::RGBA (const Vec4& v) 32 { 33 const deUint32 r = (deUint32)floatToU8(v.x()); 34 const deUint32 g = (deUint32)floatToU8(v.y()); 35 const deUint32 b = (deUint32)floatToU8(v.z()); 36 const deUint32 a = (deUint32)floatToU8(v.w()); 37 m_value = (a << ALPHA_SHIFT) | (r << RED_SHIFT) | (g << GREEN_SHIFT) | (b << BLUE_SHIFT); 38 } 39 40 Vec4 RGBA::toVec (void) const 41 { 42 return Vec4(float(getRed()) / 255.0f, 43 float(getGreen()) / 255.0f, 44 float(getBlue()) / 255.0f, 45 float(getAlpha()) / 255.0f); 46 } 47 48 IVec4 RGBA::toIVec (void) const 49 { 50 return IVec4(getRed(), getGreen(), getBlue(), getAlpha()); 51 } 52 53 RGBA computeAbsDiffMasked (RGBA a, RGBA b, deUint32 cmpMask) 54 { 55 deUint32 aPacked = a.getPacked(); 56 deUint32 bPacked = b.getPacked(); 57 deUint8 rDiff = 0; 58 deUint8 gDiff = 0; 59 deUint8 bDiff = 0; 60 deUint8 aDiff = 0; 61 62 if (cmpMask & RGBA::RED_MASK) 63 { 64 int ra = (aPacked >> RGBA::RED_SHIFT) & 0xFF; 65 int rb = (bPacked >> RGBA::RED_SHIFT) & 0xFF; 66 67 rDiff = (deUint8)deAbs32(ra - rb); 68 } 69 70 if (cmpMask & RGBA::GREEN_MASK) 71 { 72 int ga = (aPacked >> RGBA::GREEN_SHIFT) & 0xFF; 73 int gb = (bPacked >> RGBA::GREEN_SHIFT) & 0xFF; 74 75 gDiff = (deUint8)deAbs32(ga - gb); 76 } 77 78 if (cmpMask & RGBA::BLUE_MASK) 79 { 80 int ba = (aPacked >> RGBA::BLUE_SHIFT) & 0xFF; 81 int bb = (bPacked >> RGBA::BLUE_SHIFT) & 0xFF; 82 83 bDiff = (deUint8)deAbs32(ba - bb); 84 } 85 86 if (cmpMask & RGBA::ALPHA_MASK) 87 { 88 int aa = (aPacked >> RGBA::ALPHA_SHIFT) & 0xFF; 89 int ab = (bPacked >> RGBA::ALPHA_SHIFT) & 0xFF; 90 91 aDiff = (deUint8)deAbs32(aa - ab); 92 } 93 94 return RGBA(rDiff,gDiff,bDiff,aDiff); 95 } 96 97 bool compareThresholdMasked (RGBA a, RGBA b, RGBA threshold, deUint32 cmpMask) 98 { 99 return computeAbsDiffMasked(a, b, cmpMask).isBelowThreshold(threshold); 100 } 101 102 } // tcu 103
