From 3f25e92afd8f3987b6a0ca18f43364dc5285ebd6 Mon Sep 17 00:00:00 2001
From: Ilya Fedin <fedin-ilja2010@ya.ru>
Date: Sat, 20 Mar 2021 07:09:03 +0400
Subject: [PATCH] Add build options for libtgvoip backends

libtgvoip has options to disbale some backends, but they never were exposed via tdesktop's cmake

Since libtgvoip autoconf build system doesn't work anymore, it's worth to have these options in tdesktop's cmake.
---
 .github/workflows/linux.yml     |  2 ++
 Telegram/cmake/lib_tgvoip.cmake | 40 ++++++++++++++++++++++++++-------
 2 files changed, 34 insertions(+), 8 deletions(-)

diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index ba7fd18a68..ea0b7fbb99 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -65,6 +65,8 @@ jobs:
           - "DESKTOP_APP_DISABLE_X11_INTEGRATION"
           - "DESKTOP_APP_DISABLE_WAYLAND_INTEGRATION"
           - "DESKTOP_APP_DISABLE_GTK_INTEGRATION"
+          - "LIBTGVOIP_DISABLE_ALSA"
+          - "LIBTGVOIP_DISABLE_PULSEAUDIO"
 
     env:
       UPLOAD_ARTIFACT: "false"
diff --git a/Telegram/cmake/lib_tgvoip.cmake b/Telegram/cmake/lib_tgvoip.cmake
index 74d4f260dd..7616728031 100644
--- a/Telegram/cmake/lib_tgvoip.cmake
+++ b/Telegram/cmake/lib_tgvoip.cmake
@@ -27,6 +27,9 @@ if (NOT TGVOIP_FOUND)
         init_target(lib_tgvoip_bundled cxx_std_14) # Can't use std::optional::value on macOS.
     endif()
 
+    option(LIBTGVOIP_DISABLE_ALSA "Disable libtgvoip's ALSA backend (Linux only)." OFF)
+    option(LIBTGVOIP_DISABLE_PULSEAUDIO "Disable libtgvoip's PulseAudio backend (Linux only)." OFF)
+
     set(tgvoip_loc ${third_party_loc}/libtgvoip)
 
     nice_target_sources(lib_tgvoip_bundled ${tgvoip_loc}
@@ -180,15 +183,36 @@ if (NOT TGVOIP_FOUND)
     )
 
     if (LINUX)
-        find_package(PkgConfig REQUIRED)
-        find_package(ALSA REQUIRED)
-        pkg_check_modules(PULSE REQUIRED libpulse)
+        if (NOT LIBTGVOIP_DISABLE_ALSA)
+            find_package(ALSA REQUIRED)
+            target_include_directories(lib_tgvoip_bundled PRIVATE ${ALSA_INCLUDE_DIRS})
+        else()
+            remove_target_sources(lib_tgvoip_bundled ${tgvoip_loc}
+                os/linux/AudioInputALSA.cpp
+                os/linux/AudioInputALSA.h
+                os/linux/AudioOutputALSA.cpp
+                os/linux/AudioOutputALSA.h
+            )
 
-        target_include_directories(lib_tgvoip_bundled
-        PRIVATE
-            ${ALSA_INCLUDE_DIRS}
-            ${PULSE_INCLUDE_DIRS}
-        )
+            target_compile_definitions(lib_tgvoip_bundled PRIVATE WITHOUT_ALSA)
+        endif()
+
+        if (NOT LIBTGVOIP_DISABLE_PULSEAUDIO)
+            find_package(PkgConfig REQUIRED)
+            pkg_check_modules(PULSE REQUIRED libpulse)
+            target_include_directories(lib_tgvoip_bundled PRIVATE ${PULSE_INCLUDE_DIRS})
+        else()
+            remove_target_sources(lib_tgvoip_bundled ${tgvoip_loc}
+                os/linux/AudioOutputPulse.cpp
+                os/linux/AudioOutputPulse.h
+                os/linux/AudioInputPulse.cpp
+                os/linux/AudioInputPulse.h
+                os/linux/AudioPulse.cpp
+                os/linux/AudioPulse.h
+            )
+
+            target_compile_definitions(lib_tgvoip_bundled PRIVATE WITHOUT_PULSE)
+        endif()
 
         target_link_libraries(lib_tgvoip_bundled
         PRIVATE