CONFIGURE: Introduced new engine dependency: highres

Some backends like GCW0 do no support graphics >320x240 due to
the hardware limitation (downscaling is possible but it will ruin
the pixel hunting which is often part of the gameplay).

Instead of manually updating the list of engines, we now introduce
a new dependency.

I marked all relevant engines, but some, like tinsel, require more
work with putting their relevant high-res games under USE_HIGHRES
define.

1 files changed, 34 insertions, 0 deletions

diff --git a/configure b/configure
index 6bc0e857aa..1af8c29729 100755
--- a/configure
+++ b/configure
@@ -162,6 +162,7 @@ _translation=yes
 # Default platform settings
 _backend=sdl
 _16bit=auto
+_highres=auto
 _savegame_timestamp=auto
 _dynamic_modules=no
 _elf_loader=no
@@ -201,6 +202,7 @@ add_feature 16bit "16bit color" "_16bit"
 add_feature faad "libfaad" "_faad"
 add_feature flac "FLAC" "_flac"
 add_feature freetype2 "FreeType2" "_freetype2"
+add_feature highres "high resolution" "_highres"
 add_feature mad "MAD" "_mad"
 add_feature jpeg "JPEG" "_jpeg"
 add_feature png "PNG" "_png"
@@ -922,6 +924,7 @@ Optional Features:
   --default-dynamic        make plugins dynamic by default
   --disable-mt32emu        don't enable the integrated MT-32 emulator
   --disable-16bit          don't enable 16bit color support
+  --disable-highres        don't enable support for high resolution engines >320x240
   --disable-savegame-timestamp don't use timestamps for blank savegame descriptions
   --disable-scalers        exclude scalers
   --disable-hq-scalers     exclude HQ2x and HQ3x scalers
@@ -1019,6 +1022,8 @@ done # for parm in ...
 for ac_option in $@; do
 	case "$ac_option" in
 	--disable-16bit)          _16bit=no       ;;
+	--enable-highres)         _highres=yes    ;;
+	--disable-highres)        _highres=no     ;;
 	--disable-savegame-timestamp) _savegame_timestamp=no ;;
 	--disable-scalers)        _build_scalers=no ;;
 	--disable-hq-scalers)     _build_hq_scalers=no ;;
@@ -3210,6 +3215,26 @@ case $_backend in
 esac
 
 #
+# Enable High resolution engines (>320x240) support only for backends which support it
+#
+case $_backend in
+	gcw0)
+		if test "$_highres" = yes ; then
+			_highres=yes
+		else
+			_highres=no
+		fi
+		;;
+	*)
+		if test "$_highres" = no ; then
+			_highres=no
+		else
+			_highres=yes
+		fi
+		;;
+esac
+
+#
 # Enable Event Recorder only for backends that support it
 #
 case $_backend in
@@ -3522,6 +3547,11 @@ define_in_config_if_yes "$_mt32emu" 'USE_MT32EMU'
 define_in_config_if_yes "$_16bit" 'USE_RGB_COLOR'
 
 #
+# Check whether High resolution graphics support is requested
+#
+define_in_config_if_yes "$_highres" 'USE_HIGHRES'
+
+#
 # Check whether save games use the current time as default description
 #
 define_in_config_if_yes "$_savegame_timestamp" 'USE_SAVEGAME_TIMESTAMP'
@@ -4424,6 +4454,10 @@ if test "$_16bit" = yes ; then
 	echo_n ", 16bit color"
 fi
 
+if test "$_highres" = yes ; then
+	echo_n ", highres"
+fi
+
 if test "$_savegame_timestamp" = yes ; then
 	echo_n ", savegame timestamp"
 fi