1#!/bin/bash -e
2#
3# Copyright (c) 2012 The Chromium Authors. All rights reserved.
4# Use of this source code is governed by a BSD-style license that can be
5# found in the LICENSE file.
6
7# This script is used to generate files in the <platform> directories needed to
8# build libvpx. Every time libvpx source code is updated run this script.
9#
10# For example:
11# $ ./generate_config.sh
12#
13# And this will update all the config files needed.
14
15export LC_ALL=C
16BASE_DIR=$(pwd)
17LIBVPX_SRC_DIR="libvpx"
18LIBVPX_CONFIG_DIR="config"
19
20# Clean files from previous make.
21function make_clean {
22  make clean > /dev/null
23  rm -f libvpx_srcs.txt
24}
25
26# Lint a pair of vpx_config.h and vpx_config.asm to make sure they match.
27# $1 - Header file directory.
28function lint_config {
29  # mips does not contain any assembly so the header does not need to be
30  # compared to the asm.
31  if [[ "$1" != *mips* ]]; then
32    $BASE_DIR/lint_config.sh \
33      -h $BASE_DIR/$LIBVPX_CONFIG_DIR/$1/vpx_config.h \
34      -a $BASE_DIR/$LIBVPX_CONFIG_DIR/$1/vpx_config.asm
35  fi
36}
37
38# Print the configuration.
39# $1 - Header file directory.
40function print_config {
41  $BASE_DIR/lint_config.sh -p \
42    -h $BASE_DIR/$LIBVPX_CONFIG_DIR/$1/vpx_config.h \
43    -a $BASE_DIR/$LIBVPX_CONFIG_DIR/$1/vpx_config.asm
44}
45
46# Print the configuration from Header file.
47# This function is an abridged version of print_config which does not use
48# lint_config and it does not require existence of vpx_config.asm.
49# $1 - Header file directory.
50function print_config_basic {
51  combined_config="$(cat $BASE_DIR/$LIBVPX_CONFIG_DIR/$1/vpx_config.h \
52                   | grep -E ' +[01] *$')"
53  combined_config="$(echo "$combined_config" | grep -v DO1STROUNDING)"
54  combined_config="$(echo "$combined_config" | sed 's/[ \t]//g')"
55  combined_config="$(echo "$combined_config" | sed 's/.*define//')"
56  combined_config="$(echo "$combined_config" | sed 's/0$/=no/')"
57  combined_config="$(echo "$combined_config" | sed 's/1$/=yes/')"
58  echo "$combined_config" | sort | uniq
59}
60
61# Generate *_rtcd.h files.
62# $1 - Header file directory.
63# $2 - Architecture.
64function gen_rtcd_header {
65  echo "Generate $LIBVPX_CONFIG_DIR/$1/*_rtcd.h files."
66
67  # We don't properly persist the config options specificed on the configure
68  # line. Until that is fixed, force them here.
69  DISABLE_CONFIG="--disable-sse4_1 --disable-avx --disable-avx2"
70
71  rm -rf $BASE_DIR/$TEMP_DIR/libvpx.config
72  if [[ "$2" == *mips* ]]; then
73    print_config_basic $1 > $BASE_DIR/$TEMP_DIR/libvpx.config
74  else
75    $BASE_DIR/lint_config.sh -p \
76      -h $BASE_DIR/$LIBVPX_CONFIG_DIR/$1/vpx_config.h \
77      -a $BASE_DIR/$LIBVPX_CONFIG_DIR/$1/vpx_config.asm \
78      -o $BASE_DIR/$TEMP_DIR/libvpx.config
79  fi
80
81  $BASE_DIR/$LIBVPX_SRC_DIR/build/make/rtcd.pl \
82    --arch=$2 \
83    --sym=vp8_rtcd \
84    $DISABLE_CONFIG \
85    --config=$BASE_DIR/$TEMP_DIR/libvpx.config \
86    $BASE_DIR/$LIBVPX_SRC_DIR/vp8/common/rtcd_defs.pl \
87    > $BASE_DIR/$LIBVPX_CONFIG_DIR/$1/vp8_rtcd.h
88
89  $BASE_DIR/$LIBVPX_SRC_DIR/build/make/rtcd.pl \
90    --arch=$2 \
91    --sym=vp9_rtcd \
92    --config=$BASE_DIR/$TEMP_DIR/libvpx.config \
93    $DISABLE_CONFIG \
94    $BASE_DIR/$LIBVPX_SRC_DIR/vp9/common/vp9_rtcd_defs.pl \
95    > $BASE_DIR/$LIBVPX_CONFIG_DIR/$1/vp9_rtcd.h
96
97  $BASE_DIR/$LIBVPX_SRC_DIR/build/make/rtcd.pl \
98    --arch=$2 \
99    --sym=vpx_scale_rtcd \
100    --config=$BASE_DIR/$TEMP_DIR/libvpx.config \
101    $DISABLE_CONFIG \
102    $BASE_DIR/$LIBVPX_SRC_DIR/vpx_scale/vpx_scale_rtcd.pl \
103    > $BASE_DIR/$LIBVPX_CONFIG_DIR/$1/vpx_scale_rtcd.h
104
105  $BASE_DIR/$LIBVPX_SRC_DIR/build/make/rtcd.pl \
106    --arch=$2 \
107    --sym=vpx_dsp_rtcd \
108    --config=$BASE_DIR/$TEMP_DIR/libvpx.config \
109    $DISABLE_CONFIG \
110    $BASE_DIR/$LIBVPX_SRC_DIR/vpx_dsp/vpx_dsp_rtcd_defs.pl \
111    > $BASE_DIR/$LIBVPX_CONFIG_DIR/$1/vpx_dsp_rtcd.h
112
113  rm -rf $BASE_DIR/$TEMP_DIR/libvpx.config
114}
115
116# Generate Config files. "--enable-external-build" must be set to skip
117# detection of capabilities on specific targets.
118# $1 - Header file directory.
119# $2 - Config command line.
120function gen_config_files {
121  ./configure $2 > /dev/null
122
123  # Generate vpx_config.asm. Do not create one for mips.
124  if [[ "$1" != *mips* ]]; then
125    if [[ "$1" == *x86* ]]; then
126      egrep "#define [A-Z0-9_]+ [01]" vpx_config.h \
127        | awk '{print "%define " $2 " " $3}' > vpx_config.asm
128    else
129      egrep "#define [A-Z0-9_]+ [01]" vpx_config.h \
130        | awk '{print $2 " EQU " $3}' \
131        | perl $BASE_DIR/$LIBVPX_SRC_DIR/build/make/ads2gas.pl > vpx_config.asm
132    fi
133  fi
134
135  # Generate vpx_version.h
136  $BASE_DIR/$LIBVPX_SRC_DIR/build/make/version.sh "$BASE_DIR/$LIBVPX_SRC_DIR" vpx_version.h
137
138  cp vpx_config.* vpx_version.h $BASE_DIR/$LIBVPX_CONFIG_DIR/$1
139  make_clean
140  rm -rf vpx_config.* vpx_version.h
141}
142
143echo "Create temporary directory."
144TEMP_DIR="$LIBVPX_SRC_DIR.temp"
145rm -rf $TEMP_DIR
146cp -R $LIBVPX_SRC_DIR $TEMP_DIR
147cd $TEMP_DIR
148
149echo "Generate config files."
150all_platforms="--enable-external-build --enable-realtime-only --enable-pic --disable-runtime-cpu-detect"
151intel="--disable-sse4_1 --disable-avx --disable-avx2 --as=yasm"
152gen_config_files x86 "--target=x86-linux-gcc ${intel} ${all_platforms}"
153gen_config_files x86_64 "--target=x86_64-linux-gcc ${intel} ${all_platforms}"
154gen_config_files arm "--target=armv6-linux-gcc  ${all_platforms}"
155gen_config_files arm-neon "--target=armv7-linux-gcc ${all_platforms}"
156gen_config_files arm64 "--force-target=armv8-linux-gcc ${all_platforms}"
157gen_config_files mips32 "--target=mips32-linux-gcc --disable-dspr2 ${all_platforms}"
158gen_config_files mips32-dspr2 "--target=mips32-linux-gcc --enable-dspr2 ${all_platforms}"
159gen_config_files mips64 "--target=mips64-linux-gcc ${all_platforms}"
160gen_config_files generic "--target=generic-gnu ${all_platforms}"
161
162echo "Remove temporary directory."
163cd $BASE_DIR
164rm -rf $TEMP_DIR
165
166echo "Lint libvpx configuration."
167lint_config x86
168lint_config x86_64
169lint_config arm
170lint_config arm-neon
171lint_config arm64
172lint_config mips32
173lint_config mips32-dspr2
174lint_config mips64
175lint_config generic
176
177echo "Create temporary directory."
178TEMP_DIR="$LIBVPX_SRC_DIR.temp"
179rm -rf $TEMP_DIR
180cp -R $LIBVPX_SRC_DIR $TEMP_DIR
181cd $TEMP_DIR
182
183gen_rtcd_header x86 x86
184gen_rtcd_header x86_64 x86_64
185gen_rtcd_header arm armv6
186gen_rtcd_header arm-neon armv7
187gen_rtcd_header arm64 armv8
188gen_rtcd_header mips32 mips32
189gen_rtcd_header mips32-dspr2 mips32
190gen_rtcd_header mips64 mips64
191gen_rtcd_header generic generic
192
193echo "Prepare Makefile."
194./configure --target=generic-gnu > /dev/null
195make_clean
196
197echo "Generate X86 source list."
198config=$(print_config x86)
199make_clean
200make libvpx_srcs.txt target=libs $config > /dev/null
201cp libvpx_srcs.txt $BASE_DIR/$LIBVPX_CONFIG_DIR/x86/
202
203echo "Generate X86_64 source list."
204config=$(print_config x86_64)
205make_clean
206make libvpx_srcs.txt target=libs $config > /dev/null
207cp libvpx_srcs.txt $BASE_DIR/$LIBVPX_CONFIG_DIR/x86_64/
208
209echo "Generate ARM source list."
210config=$(print_config arm)
211make_clean
212make libvpx_srcs.txt target=libs $config > /dev/null
213cp libvpx_srcs.txt $BASE_DIR/$LIBVPX_CONFIG_DIR/arm/
214
215echo "Generate ARM NEON source list."
216config=$(print_config arm-neon)
217make_clean
218make libvpx_srcs.txt target=libs $config > /dev/null
219cp libvpx_srcs.txt $BASE_DIR/$LIBVPX_CONFIG_DIR/arm-neon/
220
221echo "Generate ARM64 source list."
222config=$(print_config arm64)
223make_clean
224make libvpx_srcs.txt target=libs $config > /dev/null
225cp libvpx_srcs.txt $BASE_DIR/$LIBVPX_CONFIG_DIR/arm64/
226
227echo "Generate MIPS source list."
228config=$(print_config_basic mips32)
229make_clean
230make libvpx_srcs.txt target=libs $config > /dev/null
231cp libvpx_srcs.txt $BASE_DIR/$LIBVPX_CONFIG_DIR/mips32/
232
233echo "Generate MIPS DSPR2 source list."
234config=$(print_config_basic mips32-dspr2)
235make_clean
236make libvpx_srcs.txt target=libs $config > /dev/null
237cp libvpx_srcs.txt $BASE_DIR/$LIBVPX_CONFIG_DIR/mips32-dspr2/
238
239echo "Generate MIPS64 source list."
240config=$(print_config_basic mips64)
241make_clean
242make libvpx_srcs.txt target=libs $config > /dev/null
243cp libvpx_srcs.txt $BASE_DIR/$LIBVPX_CONFIG_DIR/mips64/
244
245echo "Generate GENERIC source list."
246config=$(print_config_basic generic)
247make_clean
248make libvpx_srcs.txt target=libs $config > /dev/null
249cp libvpx_srcs.txt $BASE_DIR/$LIBVPX_CONFIG_DIR/generic/
250
251
252echo "Remove temporary directory."
253cd $BASE_DIR
254rm -rf $TEMP_DIR
255