[692] | 1 | /*
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| 2 | -----------------------------------------------------------------------------
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| 3 | This source file is part of OGRE
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| 4 | (Object-oriented Graphics Rendering Engine)
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| 5 | For the latest info, see http://www.ogre3d.org/
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| 6 |
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| 7 | Copyright (c) 2000-2005 The OGRE Team
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| 8 | Also see acknowledgements in Readme.html
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| 9 |
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| 10 | This program is free software; you can redistribute it and/or modify it under
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| 11 | the terms of the GNU Lesser General Public License as published by the Free Software
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| 12 | Foundation; either version 2 of the License, or (at your option) any later
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| 13 | version.
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| 14 |
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| 15 | This program is distributed in the hope that it will be useful, but WITHOUT
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| 16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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| 17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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| 18 |
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| 19 | You should have received a copy of the GNU Lesser General Public License along with
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| 20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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| 21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to
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| 22 | http://www.gnu.org/copyleft/lesser.txt.
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| 23 | -----------------------------------------------------------------------------
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| 24 | */
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| 25 | #include "PixelFormatTests.h"
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| 26 | #include <cstdlib>
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| 27 |
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| 28 | // Register the suite
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| 29 | CPPUNIT_TEST_SUITE_REGISTRATION( PixelFormatTests );
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| 30 |
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| 31 | void PixelFormatTests::setUp()
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| 32 | {
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| 33 | size = 4096;
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| 34 | randomData = new uint8[size];
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| 35 | temp = new uint8[size];
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| 36 | temp2 = new uint8[size];
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| 37 | // Generate reproducable random data
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| 38 | srand(0);
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| 39 | for(unsigned int x=0; x<size; x++)
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| 40 | randomData[x] = (uint8)rand();
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| 41 | }
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| 42 |
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| 43 | void PixelFormatTests::tearDown()
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| 44 | {
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| 45 | delete [] randomData;
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| 46 | delete [] temp;
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| 47 | delete [] temp2;
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| 48 | }
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| 49 |
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| 50 |
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| 51 | void PixelFormatTests::testIntegerPackUnpack()
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| 52 | {
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| 53 |
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| 54 | }
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| 55 |
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| 56 | void PixelFormatTests::testFloatPackUnpack()
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| 57 | {
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| 58 | // Float32
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| 59 | float data[4] = {1.0f, 2.0f, 3.0f, 4.0f};
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| 60 | float r,g,b,a;
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| 61 | PixelUtil::unpackColour(&r, &g, &b, &a, PF_FLOAT32_RGBA, data);
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| 62 | CPPUNIT_ASSERT_EQUAL(r, 1.0f);
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| 63 | CPPUNIT_ASSERT_EQUAL(g, 2.0f);
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| 64 | CPPUNIT_ASSERT_EQUAL(b, 3.0f);
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| 65 | CPPUNIT_ASSERT_EQUAL(a, 4.0f);
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| 66 |
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| 67 | // Float16
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| 68 | setupBoxes(PF_A8B8G8R8, PF_FLOAT16_RGBA);
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| 69 | dst2.format = PF_A8B8G8R8;
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| 70 | unsigned int eob = src.getWidth()*4;
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| 71 |
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| 72 | PixelUtil::bulkPixelConversion(src, dst1);
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| 73 | PixelUtil::bulkPixelConversion(dst1, dst2);
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| 74 |
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| 75 | // Locate errors
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| 76 | std::stringstream s;
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| 77 | int x;
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| 78 | for(x=0; x<eob; x++) {
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| 79 | if(temp2[x] != randomData[x])
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| 80 | s << std::hex << std::setw(2) << std::setfill('0') << (unsigned int) randomData[x]
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| 81 | << "!= " << std::hex << std::setw(2) << std::setfill('0') << (unsigned int) temp2[x] << " ";
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| 82 | }
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| 83 |
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| 84 | // src and dst2 should match
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| 85 | CPPUNIT_ASSERT_MESSAGE("PF_FLOAT16_RGBA<->PF_A8B8G8R8 conversion was not lossless "+s.str(),
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| 86 | memcmp(src.data, dst2.data, eob) == 0);
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| 87 | }
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| 88 |
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| 89 | // Pure 32 bit float precision brute force pixel conversion; for comparision
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| 90 | void naiveBulkPixelConversion(const PixelBox &src, const PixelBox &dst)
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| 91 | {
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| 92 | uint8 *srcptr = static_cast<uint8*>(src.data);
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| 93 | uint8 *dstptr = static_cast<uint8*>(dst.data);
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| 94 | unsigned int srcPixelSize = PixelUtil::getNumElemBytes(src.format);
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| 95 | unsigned int dstPixelSize = PixelUtil::getNumElemBytes(dst.format);
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| 96 |
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| 97 | // Calculate pitches+skips in bytes
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| 98 | int srcRowSkipBytes = src.getRowSkip()*srcPixelSize;
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| 99 | int srcSliceSkipBytes = src.getSliceSkip()*srcPixelSize;
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| 100 |
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| 101 | int dstRowSkipBytes = dst.getRowSkip()*dstPixelSize;
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| 102 | int dstSliceSkipBytes = dst.getSliceSkip()*dstPixelSize;
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| 103 |
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| 104 | // The brute force fallback
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| 105 | float r,g,b,a;
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| 106 | for(size_t z=src.front; z<src.back; z++)
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| 107 | {
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| 108 | for(size_t y=src.top; y<src.bottom; y++)
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| 109 | {
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| 110 | for(size_t x=src.left; x<src.right; x++)
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| 111 | {
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| 112 | PixelUtil::unpackColour(&r, &g, &b, &a, src.format, srcptr);
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| 113 | PixelUtil::packColour(r, g, b, a, dst.format, dstptr);
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| 114 | srcptr += srcPixelSize;
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| 115 | dstptr += dstPixelSize;
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| 116 | }
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| 117 | srcptr += srcRowSkipBytes;
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| 118 | dstptr += dstRowSkipBytes;
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| 119 | }
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| 120 | srcptr += srcSliceSkipBytes;
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| 121 | dstptr += dstSliceSkipBytes;
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| 122 | }
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| 123 |
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| 124 | }
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| 125 |
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| 126 | void PixelFormatTests::setupBoxes(PixelFormat srcFormat, PixelFormat dstFormat)
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| 127 | {
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| 128 | unsigned int width = (size-4) / PixelUtil::getNumElemBytes(srcFormat);
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| 129 | unsigned int width2 = (size-4) / PixelUtil::getNumElemBytes(dstFormat);
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| 130 | if(width > width2)
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| 131 | width = width2;
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| 132 |
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| 133 | src = PixelBox(width, 1, 1, srcFormat, randomData);
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| 134 | dst1 = PixelBox(width, 1, 1, dstFormat, temp);
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| 135 | dst2 = PixelBox(width, 1, 1, dstFormat, temp2);
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| 136 |
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| 137 | }
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| 138 |
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| 139 | void PixelFormatTests::testCase(PixelFormat srcFormat, PixelFormat dstFormat)
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| 140 | {
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| 141 | setupBoxes(srcFormat, dstFormat);
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| 142 | // Check end of buffer
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| 143 | unsigned int eob = dst1.getWidth()*PixelUtil::getNumElemBytes(dstFormat);
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| 144 | temp[eob] = (unsigned char)0x56;
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| 145 | temp[eob+1] = (unsigned char)0x23;
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| 146 |
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| 147 | //std::cerr << "["+PixelUtil::getFormatName(srcFormat)+"->"+PixelUtil::getFormatName(dstFormat)+"]" << " " << eob << std::endl;
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| 148 |
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| 149 | // Do pack/unpacking with both naive and optimized version
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| 150 | PixelUtil::bulkPixelConversion(src, dst1);
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| 151 | naiveBulkPixelConversion(src, dst2);
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| 152 |
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| 153 | CPPUNIT_ASSERT_EQUAL(temp[eob], (unsigned char)0x56);
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| 154 | CPPUNIT_ASSERT_EQUAL(temp[eob+1], (unsigned char)0x23);
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| 155 |
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| 156 | std::stringstream s;
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| 157 | int x;
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| 158 | s << "src=";
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| 159 | for(x=0; x<16; x++)
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| 160 | s << std::hex << std::setw(2) << std::setfill('0') << (unsigned int) randomData[x];
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| 161 | s << " dst=";
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| 162 | for(x=0; x<16; x++)
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| 163 | s << std::hex << std::setw(2) << std::setfill('0') << (unsigned int) temp[x];
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| 164 | s << " dstRef=";
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| 165 | for(x=0; x<16; x++)
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| 166 | s << std::hex << std::setw(2) << std::setfill('0') << (unsigned int) temp2[x];
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| 167 | s << " ";
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| 168 |
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| 169 | // Compare result
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| 170 | CPPUNIT_ASSERT_MESSAGE("Conversion mismatch ["+PixelUtil::getFormatName(srcFormat)+"->"+PixelUtil::getFormatName(dstFormat)+"] "+s.str(),
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| 171 | memcmp(dst1.data, dst2.data, eob) == 0);
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| 172 | }
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| 173 |
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| 174 | void PixelFormatTests::testBulkConversion()
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| 175 | {
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| 176 | // Self match
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| 177 | testCase(PF_A8R8G8B8, PF_A8R8G8B8);
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| 178 | // Optimized
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| 179 | testCase(PF_A8R8G8B8,PF_A8B8G8R8);
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| 180 | testCase(PF_A8R8G8B8,PF_B8G8R8A8);
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| 181 | testCase(PF_A8R8G8B8,PF_R8G8B8A8);
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| 182 | testCase(PF_A8B8G8R8,PF_A8R8G8B8);
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| 183 | testCase(PF_A8B8G8R8,PF_B8G8R8A8);
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| 184 | testCase(PF_A8B8G8R8,PF_R8G8B8A8);
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| 185 | testCase(PF_B8G8R8A8,PF_A8R8G8B8);
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| 186 | testCase(PF_B8G8R8A8,PF_A8B8G8R8);
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| 187 | testCase(PF_B8G8R8A8,PF_R8G8B8A8);
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| 188 | testCase(PF_R8G8B8A8,PF_A8R8G8B8);
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| 189 | testCase(PF_R8G8B8A8,PF_A8B8G8R8);
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| 190 | testCase(PF_R8G8B8A8,PF_B8G8R8A8);
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| 191 |
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| 192 | testCase(PF_A8B8G8R8, PF_L8);
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| 193 | testCase(PF_L8, PF_A8B8G8R8);
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| 194 | testCase(PF_A8R8G8B8, PF_L8);
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| 195 | testCase(PF_L8, PF_A8R8G8B8);
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| 196 | testCase(PF_B8G8R8A8, PF_L8);
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| 197 | testCase(PF_L8, PF_B8G8R8A8);
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| 198 | testCase(PF_L8, PF_L16);
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| 199 | testCase(PF_L16, PF_L8);
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| 200 | testCase(PF_R8G8B8, PF_B8G8R8);
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| 201 | testCase(PF_B8G8R8, PF_R8G8B8);
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| 202 | testCase(PF_B8G8R8, PF_R8G8B8);
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| 203 | testCase(PF_R8G8B8, PF_B8G8R8);
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| 204 | testCase(PF_R8G8B8, PF_A8R8G8B8);
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| 205 | testCase(PF_B8G8R8, PF_A8R8G8B8);
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| 206 | testCase(PF_R8G8B8, PF_A8B8G8R8);
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| 207 | testCase(PF_B8G8R8, PF_A8B8G8R8);
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| 208 | testCase(PF_R8G8B8, PF_B8G8R8A8);
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| 209 | testCase(PF_B8G8R8, PF_B8G8R8A8);
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| 210 | testCase(PF_A8R8G8B8, PF_R8G8B8);
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| 211 | testCase(PF_A8R8G8B8, PF_B8G8R8);
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| 212 | testCase(PF_X8R8G8B8, PF_A8R8G8B8);
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| 213 | testCase(PF_X8R8G8B8, PF_A8B8G8R8);
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| 214 | testCase(PF_X8R8G8B8, PF_B8G8R8A8);
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| 215 | testCase(PF_X8R8G8B8, PF_R8G8B8A8);
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| 216 | testCase(PF_X8B8G8R8, PF_A8R8G8B8);
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| 217 | testCase(PF_X8B8G8R8, PF_A8B8G8R8);
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| 218 | testCase(PF_X8B8G8R8, PF_B8G8R8A8);
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| 219 | testCase(PF_X8B8G8R8, PF_R8G8B8A8);
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| 220 |
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| 221 | //CPPUNIT_ASSERT_MESSAGE("Conversion mismatch", false);
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| 222 | }
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| 223 |
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