1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/tests/gtest/TestBufferRotation.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,151 @@
1.4 +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "gtest/gtest.h"
1.10 +
1.11 +#include "BufferUnrotate.h"
1.12 +
1.13 +static unsigned char* GenerateBuffer(int bytesPerPixel,
1.14 + int width, int height,
1.15 + int stride, int xBoundary, int yBoundary)
1.16 +{
1.17 + unsigned char* buffer = new unsigned char[stride*height];
1.18 + for (int y = 0; y < height; y++) {
1.19 + for (int x = 0; x < width; x++) {
1.20 + int pos = ((yBoundary + y) % height) * stride +
1.21 + ((xBoundary + x) % width) * bytesPerPixel;
1.22 + for (int i = 0; i < bytesPerPixel; i++) {
1.23 + buffer[pos+i] = (x+y+i*2)%256;
1.24 + }
1.25 + }
1.26 + }
1.27 + return buffer;
1.28 +}
1.29 +
1.30 +static bool CheckBuffer(unsigned char* buffer, int bytesPerPixel,
1.31 + int width, int height, int stride)
1.32 +{
1.33 + int xBoundary = 0;
1.34 + int yBoundary = 0;
1.35 + for (int y = 0; y < height; y++) {
1.36 + for (int x = 0; x < width; x++) {
1.37 + int pos = ((yBoundary + y) % height) * stride +
1.38 + ((xBoundary + x) % width) * bytesPerPixel;
1.39 + for (int i = 0; i < bytesPerPixel; i++) {
1.40 + if (buffer[pos+i] != (x+y+i*2)%256) {
1.41 + printf("Buffer differs at %i, %i, is %i\n", x, y, (int)buffer[pos+i]);
1.42 + return false;
1.43 + }
1.44 + }
1.45 + }
1.46 + }
1.47 + return true;
1.48 +}
1.49 +
1.50 +TEST(Gfx, BufferUnrotateHorizontal) {
1.51 + const int NUM_OF_TESTS = 8;
1.52 + int bytesPerPixelList[2] = {2,4};
1.53 + int width[NUM_OF_TESTS] = {100, 100, 99, 99, 100, 100, 99, 99};
1.54 + int height[NUM_OF_TESTS] = {100, 99, 100, 99, 100, 99, 100, 99};
1.55 + int xBoundary[NUM_OF_TESTS] = {30, 30, 30, 30, 31, 31, 31, 31};
1.56 + int yBoundary[NUM_OF_TESTS] = {0, 0, 0, 0};
1.57 +
1.58 + for (int bytesPerId = 0; bytesPerId < 2; bytesPerId++) {
1.59 + int bytesPerPixel = bytesPerPixelList[bytesPerId];
1.60 + int stride = 256 * bytesPerPixel;
1.61 + for (int testId = 0; testId < NUM_OF_TESTS; testId++) {
1.62 + unsigned char* buffer = GenerateBuffer(bytesPerPixel,
1.63 + width[testId], height[testId], stride,
1.64 + xBoundary[testId], yBoundary[testId]);
1.65 + BufferUnrotate(buffer,
1.66 + width[testId] * bytesPerPixel, height[testId], stride,
1.67 + xBoundary[testId] * bytesPerPixel, yBoundary[testId]);
1.68 +
1.69 + EXPECT_TRUE(CheckBuffer(buffer, bytesPerPixel,
1.70 + width[testId], height[testId], stride));
1.71 + delete[] buffer;
1.72 + }
1.73 + }
1.74 +}
1.75 +
1.76 +TEST(Gfx, BufferUnrotateVertical) {
1.77 + const int NUM_OF_TESTS = 8;
1.78 + int bytesPerPixelList[2] = {2,4};
1.79 + int width[NUM_OF_TESTS] = {100, 100, 99, 99, 100, 100, 99, 99};
1.80 + int height[NUM_OF_TESTS] = {100, 99, 100, 99, 100, 99, 100, 99};
1.81 + int xBoundary[NUM_OF_TESTS] = {0, 0, 0, 0};
1.82 + int yBoundary[NUM_OF_TESTS] = {30, 30, 30, 30, 31, 31, 31, 31};
1.83 +
1.84 + for (int bytesPerId = 0; bytesPerId < 2; bytesPerId++) {
1.85 + int bytesPerPixel = bytesPerPixelList[bytesPerId];
1.86 + int stride = 256 * bytesPerPixel;
1.87 + for (int testId = 0; testId < NUM_OF_TESTS; testId++) {
1.88 + unsigned char* buffer = GenerateBuffer(bytesPerPixel,
1.89 + width[testId], height[testId], stride,
1.90 + xBoundary[testId], yBoundary[testId]);
1.91 + BufferUnrotate(buffer, width[testId] * bytesPerPixel,
1.92 + height[testId], stride,
1.93 + xBoundary[testId] * bytesPerPixel, yBoundary[testId]);
1.94 +
1.95 + EXPECT_TRUE(CheckBuffer(buffer, bytesPerPixel,
1.96 + width[testId], height[testId], stride));
1.97 + delete[] buffer;
1.98 + }
1.99 + }
1.100 +}
1.101 +
1.102 +
1.103 +TEST(Gfx, BufferUnrotateBoth) {
1.104 + const int NUM_OF_TESTS = 16;
1.105 + int bytesPerPixelList[2] = {2,4};
1.106 + int width[NUM_OF_TESTS] = {100, 100, 99, 99, 100, 100, 99, 99, 100, 100, 99, 99, 100, 100, 99, 99};
1.107 + int height[NUM_OF_TESTS] = {100, 99, 100, 99, 100, 99, 100, 99, 100, 99, 100, 99, 100, 99, 100, 99};
1.108 + int xBoundary[NUM_OF_TESTS] = {30, 30, 30, 30, 31, 31, 31, 31, 30, 30, 30, 30, 31, 31, 31, 31};
1.109 + int yBoundary[NUM_OF_TESTS] = {30, 30, 30, 30, 30, 30, 30, 30, 31, 31, 31, 31, 31, 31, 31, 31};
1.110 +
1.111 + for (int bytesPerId = 0; bytesPerId < 2; bytesPerId++) {
1.112 + int bytesPerPixel = bytesPerPixelList[bytesPerId];
1.113 + int stride = 256 * bytesPerPixel;
1.114 + for (int testId = 0; testId < NUM_OF_TESTS; testId++) {
1.115 + unsigned char* buffer = GenerateBuffer(bytesPerPixel,
1.116 + width[testId], height[testId], stride,
1.117 + xBoundary[testId], yBoundary[testId]);
1.118 + BufferUnrotate(buffer,
1.119 + width[testId] * bytesPerPixel, height[testId], stride,
1.120 + xBoundary[testId] * bytesPerPixel, yBoundary[testId]);
1.121 +
1.122 + EXPECT_TRUE(CheckBuffer(buffer, bytesPerPixel,
1.123 + width[testId], height[testId], stride));
1.124 + delete[] buffer;
1.125 + }
1.126 + }
1.127 +}
1.128 +
1.129 +TEST(Gfx, BufferUnrotateUneven) {
1.130 + const int NUM_OF_TESTS = 16;
1.131 + int bytesPerPixelList[2] = {2,4};
1.132 + int width[NUM_OF_TESTS] = {10, 100, 99, 39, 100, 40, 99, 39, 100, 50, 39, 99, 74, 60, 99, 39};
1.133 + int height[NUM_OF_TESTS] = {100, 39, 10, 99, 10, 99, 40, 99, 73, 39, 100, 39, 67, 99, 84, 99};
1.134 + int xBoundary[NUM_OF_TESTS] = {0, 0, 30, 30, 99, 31, 0, 31, 30, 30, 30, 30, 31, 31, 31, 38};
1.135 + int yBoundary[NUM_OF_TESTS] = {30, 30, 0, 30, 0, 30, 0, 30, 31, 31, 31, 31, 31, 31, 31, 98};
1.136 +
1.137 + for (int bytesPerId = 0; bytesPerId < 2; bytesPerId++) {
1.138 + int bytesPerPixel = bytesPerPixelList[bytesPerId];
1.139 + int stride = 256 * bytesPerPixel;
1.140 + for (int testId = 0; testId < NUM_OF_TESTS; testId++) {
1.141 + unsigned char* buffer = GenerateBuffer(bytesPerPixel,
1.142 + width[testId], height[testId], stride,
1.143 + xBoundary[testId], yBoundary[testId]);
1.144 + BufferUnrotate(buffer,
1.145 + width[testId]*bytesPerPixel, height[testId], stride,
1.146 + xBoundary[testId]*bytesPerPixel, yBoundary[testId]);
1.147 +
1.148 + EXPECT_TRUE(CheckBuffer(buffer, bytesPerPixel, width[testId], height[testId], stride));
1.149 + delete[] buffer;
1.150 + }
1.151 + }
1.152 +}
1.153 +
1.154 +
