From 3a855b61195d0cf6406a89e5a28b8a2c6be38803 Mon Sep 17 00:00:00 2001
From: Hermet Park <hermet@lottiefiles.com>
Date: Tue, 7 May 2024 12:01:05 +0900
Subject: [PATCH] infra: add extra build options for flexible ThorVG
 composition

this commit introduces an additional build options:

- lottie expressions: this advanced feature in Lottie can
significantly increase binary size. Users now have the option
to enable or disable it based on their requirements.

Note that, this change introduces one config definitions:

- THORVG_LOTTIE_EXPRESSIONS_SUPPORT
---
 meson.build       | 64 +++++++++++++++++++++++++----------------------
 meson_options.txt | 24 +++++++++++-------
 2 files changed, 49 insertions(+), 39 deletions(-)

diff --git a/meson.build b/meson.build
index 3e143e80..567f7ec2 100644
--- a/meson.build
+++ b/meson.build
@@ -56,11 +56,6 @@ endif
 
 if all_loaders or get_option('loaders').contains('lottie') == true
     config_h.set10('THORVG_LOTTIE_LOADER_SUPPORT', true)
-    #Experimental feature, enable it manually
-    lottie_expressions = false
-    if lottie_expressions
-        config_h.set10('THORVG_LOTTIE_EXPRESSIONS_SUPPORT', false)
-    endif
 endif
 
 if all_loaders or get_option('loaders').contains('ttf') == true
@@ -124,6 +119,13 @@ if get_option('tools').contains('all') == true
     all_tools = true
 endif
 
+#Extra
+lottie_expressions = (get_option('loaders').contains('all') or get_option('loaders').contains('lottie')) and get_option('extra').contains('lottie_expressions')
+
+if lottie_expressions
+    config_h.set10('THORVG_LOTTIE_EXPRESSIONS_SUPPORT', true)
+endif
+
 #Miscellaneous
 config_h.set10('WIN32_LEAN_AND_MEAN', true)
 
@@ -148,31 +150,32 @@ endif
 summary = '''
 
 Summary:
-    ThorVG version:          @0@
-    Build Type:              @1@
-    Prefix:                  @2@
-    Multi-Tasking:           @3@
-    SIMD Instruction:        @4@
-    Raster Engine (SW):      @5@
-    Raster Engine (GL_BETA): @6@
-    Raster Engine (WG_BETA): @7@
-    Loader (TVG):            @8@
-    Loader (SVG):            @9@
-    Loader (TTF):            @10@
-    Loader (LOTTIE):         @11@
-    Loader (PNG):            @12@
-    Loader (JPG):            @13@
-    Loader (WEBP):           @14@
-    Saver (TVG):             @15@
-    Saver (GIF):             @16@
-    Binding (CAPI):          @17@
-    Binding (WASM_BETA):     @18@
-    Log Message:             @19@
-    Tests:                   @20@
-    Examples:                @21@
-    Tool (Svg2Tvg):          @22@
-    Tool (Svg2Png):          @23@
-    Tool (Lottie2Gif):       @24@
+    ThorVG version:             @0@
+    Build Type:                 @1@
+    Prefix:                     @2@
+    Multi-Tasking:              @3@
+    SIMD Instruction:           @4@
+    Raster Engine (SW):         @5@
+    Raster Engine (GL_BETA):    @6@
+    Raster Engine (WG_BETA):    @7@
+    Loader (TVG):               @8@
+    Loader (SVG):               @9@
+    Loader (TTF):               @10@
+    Loader (LOTTIE):            @11@
+    Loader (PNG):               @12@
+    Loader (JPG):               @13@
+    Loader (WEBP):              @14@
+    Saver (TVG):                @15@
+    Saver (GIF):                @16@
+    Binding (CAPI):             @17@
+    Binding (WASM_BETA):        @18@
+    Log Message:                @19@
+    Tests:                      @20@
+    Examples:                   @21@
+    Tool (Svg2Tvg):             @22@
+    Tool (Svg2Png):             @23@
+    Tool (Lottie2Gif):          @24@
+    Extra (Lottie Expressions): @25@
 
 '''.format(
         meson.project_version(),
@@ -200,6 +203,7 @@ Summary:
         all_tools or get_option('tools').contains('svg2tvg'),
         all_tools or get_option('tools').contains('svg2png'),
         all_tools or get_option('tools').contains('lottie2gif'),
+        lottie_expressions
     )
 
 message(summary)
diff --git a/meson_options.txt b/meson_options.txt
index a6506232..b3e5558c 100644
--- a/meson_options.txt
+++ b/meson_options.txt
@@ -39,9 +39,9 @@ option('tools',
    description: 'Enable building thorvg tools')
 
 option('examples',
-    type: 'boolean',
-    value: false,
-    description: 'Enable building examples')
+   type: 'boolean',
+   value: false,
+   description: 'Enable building examples')
 
 option('tests',
    type: 'boolean',
@@ -49,11 +49,17 @@ option('tests',
    description: 'Enable building Unit Tests')
 
 option('log',
-    type: 'boolean',
-    value: false,
-    description: 'Enable log message')
+   type: 'boolean',
+   value: false,
+   description: 'Enable log message')
 
 option('static',
-    type: 'boolean',
-    value: false,
-    description: 'Force to use static linking modules in thorvg')
+   type: 'boolean',
+   value: false,
+   description: 'Force to use static linking modules in thorvg')
+
+option('extra',
+   type: 'array',
+   choices: ['', 'lottie_expressions'],
+   value: ['lottie_expressions'],
+   description: '"Enable support for exceptionally advanced features')
\ No newline at end of file