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annotate tests/encbr1test.c @ 2051:c67d863384a5

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Changes to the BR1 encoder test.
author Matti Hamalainen <ccr@tnsp.org>
date Mon, 03 Dec 2018 19:02:29 +0200
parents 210a0041081b
children d5ea82da40ab
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
2039
210a0041081b Fix MinGW build of encbr1test.
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diff changeset
1 #include "dmtool.h"
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2 #include "dmlib.h"
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3 #include "dmres.h"
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4 #include "dmmutex.h"
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5
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6
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7 #define BR_DEBUG 1
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8 //#define BR_WRITE
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9
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10 enum
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11 {
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12 DMODE_LIT,
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13 DMODE_RLE,
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14 };
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15
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16
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17 #if BR_DEBUG == 1
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18 static int mcount = 0;
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19 static int moffs = 0;
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20
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21 static void mprintbyte(const Uint8 data)
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22 {
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23 if (mcount == 0) printf("%04x | ", moffs);
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24 printf("%02x ", data);
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25 if (mcount++ >= 15) { printf("\n"); mcount = 0; }
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26 moffs++;
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27 }
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28 #endif
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29
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30
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31 BOOL dmIFFEncodeByteRun1LIT(DMResource *fp,
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32 const Uint8 *buf, const size_t offs,
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33 const size_t count)
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34 {
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35 if (count <= 0)
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36 return TRUE;
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37
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38 Uint8 tmp = count - 1;
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39
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40 #if BR_DEBUG == 2
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41 printf("L: %02x ", tmp);
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42 for (size_t n = 0; n < count; n++)
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43 printf("%02x ", buf[offs + n]);
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44 printf("[%" DM_PRIu_SIZE_T "]\n", count);
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45 #elif BR_DEBUG == 1
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46 mprintbyte(tmp);
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47 for (size_t n = 0; n < count; n++)
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48 mprintbyte(buf[offs + n]);
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49 #endif
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50
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51 #ifdef BR_WRITE
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52 if (!dmf_write_byte(fp, tmp) ||
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53 !dmf_write_str(fp, buf + offs, count))
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54 return FALSE;
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55 #endif
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56
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57 return TRUE;
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58 }
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59
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60
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61 BOOL dmIFFEncodeByteRun1RLE(DMResource *fp,
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62 const Uint8 *buf, const size_t offs,
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63 const size_t count)
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64 {
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65 if (count <= 0)
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66 return TRUE;
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67
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68 Uint8 tmp = ((Uint8) count - 2) ^ 0xff;
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69 Uint8 data = buf[offs];
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70
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71 #if BR_DEBUG == 2
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72 printf("R: %02x %02x [%" DM_PRIu_SIZE_T "]\n", tmp, data, count);
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73 #elif BR_DEBUG == 1
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74 mprintbyte(tmp);
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75 mprintbyte(data);
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76 #endif
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77 #ifdef BR_WRITE
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78 if (!dmf_write_byte(fp, tmp) ||
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79 !dmf_write_byte(fp, data))
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80 return FALSE;
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81 #endif
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82
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83 return TRUE;
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84 }
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85
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86
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87 BOOL dmIFFEncodeByteRun1Row(DMResource *fp, const Uint8 *buf, const size_t bufLen)
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88 {
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89 int prev = -1, mode = DMODE_LIT;
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90 size_t offs, l_offs, r_offs;
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91 BOOL ret = TRUE;
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92
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93 #if BR_DEBUG == 1
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94 mcount = 0;
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95 #endif
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96
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97 for (offs = l_offs = r_offs = 0; offs < bufLen; offs++)
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98 {
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99 Uint8 data = buf[offs];
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100 BOOL flush = FALSE;
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101 int pmode = mode;
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102
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103 if (data == prev)
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104 {
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105 if (mode == DMODE_LIT &&
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106 offs - r_offs >= 2)
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107 {
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108 ret = dmIFFEncodeByteRun1LIT(fp, buf, l_offs, r_offs - l_offs);
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109 mode = DMODE_RLE;
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110 }
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111 }
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112 else
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113 {
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114 if (mode != DMODE_LIT)
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115 {
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116 ret = dmIFFEncodeByteRun1RLE(fp, buf, r_offs, offs - r_offs);
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117 mode = DMODE_LIT;
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118 l_offs = offs;
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119 }
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120 r_offs = offs;
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121 }
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122
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123 if (!ret)
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124 goto out;
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125
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126 #if BR_DEBUG == 2
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127 printf("%04" DM_PRIx_SIZE_T ": %02x | r_count=%" DM_PRIu_SIZE_T ", l_count=%" DM_PRIu_SIZE_T ", mode=%s | [%04" DM_PRIx_SIZE_T ", %04" DM_PRIx_SIZE_T "]",
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128 offs, data, offs - r_offs, offs - l_offs,
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129 mode == DMODE_RLE ? "RLE" : "LIT",
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130 r_offs, l_offs);
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131 #endif
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132
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133 // NOTE! RLE max is 128, checked against DP2e
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134 // Not sure about LIT max yet
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135 if ((pmode == DMODE_RLE && offs - r_offs >= 128) ||
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136 (pmode == DMODE_LIT && offs - l_offs >= 128))
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137 {
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138 flush = TRUE;
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139 #if BR_DEBUG == 2
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140 printf(" <LEN FLUSH>");
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141 #endif
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142 }
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143
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144 // Check for last byte of input
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145 if (offs == bufLen - 1)
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146 {
c67d863384a5 Changes to the BR1 encoder test.
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diff changeset
147 offs++;
c67d863384a5 Changes to the BR1 encoder test.
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148 flush = TRUE;
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
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149 pmode = mode;
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150 #if BR_DEBUG == 2
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Matti Hamalainen <ccr@tnsp.org>
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151 printf(" <FINAL FLUSH>");
c67d863384a5 Changes to the BR1 encoder test.
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152 #endif
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153 }
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154
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155 #if BR_DEBUG == 2
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156 printf("\n");
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157 #endif
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158
2051
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159 if (flush)
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160 {
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161 if (pmode == DMODE_RLE)
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162 ret = dmIFFEncodeByteRun1RLE(fp, buf, r_offs, offs - r_offs);
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163 else
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164 ret = dmIFFEncodeByteRun1LIT(fp, buf, l_offs, offs - l_offs);
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165
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166 r_offs = l_offs = offs;
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167 mode = DMODE_LIT;
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168
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169 if (!ret)
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170 goto out;
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171 }
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172
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173 prev = data;
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174 }
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175
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176 out:
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177 return ret;
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178 }
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179
f41bc7203a16 Add a test program for BR1 compression.
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parents:
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180
f41bc7203a16 Add a test program for BR1 compression.
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parents:
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181
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182 int main(int argc, char *argv[])
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183 {
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184 DMResource *fp = NULL;
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185 (void) argc;
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parents:
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186 (void) argv;
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187
2051
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188 #ifdef BR_WRITE
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189 dmf_open_stdio_stream(stderr, &fp);
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190 #endif
c67d863384a5 Changes to the BR1 encoder test.
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diff changeset
191
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192 static const Uint8 test[] =
2024
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193 {
2051
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diff changeset
194 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
195 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
196 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
197 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
198
2024
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199 0,
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
200 1,
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
201
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
202 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
203 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
f41bc7203a16 Add a test program for BR1 compression.
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parents:
diff changeset
204 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
205 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
206
2051
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
207 2, 2, 3, 4, 5, 5, 5, 6,
2024
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
208
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
209 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
210 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
211 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2051
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
212 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
2024
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
213
2051
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
214 1, 3,
2024
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
215
2051
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
216 0, 0, 0, 1,
2024
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
217 };
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
218
2051
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
219 {
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
220 int cnt = 0;
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
221 for (size_t xc = 0; xc < sizeof(test); xc++)
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
222 {
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
223 if (cnt == 0) printf("%04x | ", xc);
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
224 printf("%02x ", *(test + xc));
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
225 if (cnt++ >= 15) { printf("\n"); cnt = 0; }
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
226 }
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
227 printf("\n\n");
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
228
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
229 dmIFFEncodeByteRun1Row(fp, test, sizeof(test));
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
230 printf("\n--\n");
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
231 }
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
232
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
233 #ifdef BR_WRITE
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
234 dmf_close(fp);
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
235 #endif
c67d863384a5 Changes to the BR1 encoder test.
Matti Hamalainen <ccr@tnsp.org>
parents: 2039
diff changeset
236
2024
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
237 return 0;
f41bc7203a16 Add a test program for BR1 compression.
Matti Hamalainen <ccr@tnsp.org>
parents:
diff changeset
238 }