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Support vulkan backend #110

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de822c0
Support vulkan backend
xiaowei-guan Aug 14, 2025
c71e818
Fix format error
xiaowei-guan Aug 14, 2025
7d7cdcd
Merge branch 'master' into add_vulkan_backend
xiaowei-guan Aug 27, 2025
2519881
Minor refactor
xiaowei-guan Aug 27, 2025
ceb7265
Merge remote-tracking branch 'upstream/master' into add_vulkan_backend
xiaowei-guan Aug 27, 2025
25c156c
Merge remote-tracking branch 'upstream/master' into add_vulkan_backend
xiaowei-guan Aug 27, 2025
a589c89
Merge remote-tracking branch 'upstream/master' into add_vulkan_backend
xiaowei-guan Sep 23, 2025
c6b4fec
Merge remote-tracking branch 'upstream/master' into add_vulkan_backend
xiaowei-guan Sep 24, 2025
f6dda15
Fix code review issues
xiaowei-guan Sep 26, 2025
6f7c767
Change render type EcoreVulkan to EVulkan
xiaowei-guan Sep 28, 2025
a2e4c25
Add more result check for vkAcquireNextImageKHR
xiaowei-guan Oct 9, 2025
ebb73f7
Return RecreateSwapChain result as Present result when vkQueuePresentKHR
xiaowei-guan Oct 9, 2025
a310c30
Move vulkan renderer code to experimantal
xiaowei-guan Oct 10, 2025
133d12a
Update build.yml
xiaowei-guan Oct 10, 2025
a236dc2
Merge remote-tracking branch 'upstream/master' into add_vulkan_backend
xiaowei-guan Oct 15, 2025
ad9494b
Merge remote-tracking branch 'upstream/master' into add_vulkan_backend
xiaowei-guan Oct 30, 2025
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24 changes: 22 additions & 2 deletions .github/workflows/build.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -72,7 +72,17 @@ jobs:
- uses: actions/upload-artifact@v4
with:
name: tizen-${{ matrix.api-version }}-${{ matrix.arch }}
path: src/out/build/libflutter_tizen*.so
path: |
src/out/build/libflutter_tizen_common.so
src/out/build/libflutter_tizen_mobile.so
src/out/build/libflutter_tizen_tv.so
if-no-files-found: error

- uses: actions/upload-artifact@v4
with:
name: tizen-${{ matrix.api-version }}-${{ matrix.arch }}_experimental
path: |
src/out/build/libflutter_tizen*_experimental.so
if-no-files-found: error

- uses: actions/upload-artifact@v4
Expand All @@ -85,7 +95,17 @@ jobs:
if: ${{ github.event_name == 'push' }}
with:
name: tizen-${{ matrix.api-version }}-${{ matrix.arch }}_symbols
path: src/out/build/so.unstripped/libflutter_tizen*.so
path: |
src/out/build/so.unstripped/libflutter_tizen_common.so
src/out/build/so.unstripped/libflutter_tizen_mobile.so
src/out/build/so.unstripped/libflutter_tizen_tv.so
if-no-files-found: error

- uses: actions/upload-artifact@v4
if: ${{ github.event_name == 'push' }}
with:
name: tizen-${{ matrix.api-version }}-${{ matrix.arch }}_experimental_symbols
path: src/out/build/so.unstripped/libflutter_tizen*_experimental.so
if-no-files-found: error

- uses: actions/upload-artifact@v4
Expand Down
32 changes: 31 additions & 1 deletion flutter/shell/platform/tizen/BUILD.gn
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Original file line number Diff line number Diff line change
Expand Up @@ -140,7 +140,8 @@ template("embedder") {
"GLESv2",
]

if (target_name == "flutter_tizen_common") {
if (target_name == "flutter_tizen_common" ||
target_name == "flutter_tizen_common_experimental") {
sources += [ "channels/tizen_shell.cc" ]

libs += [
Expand All @@ -152,6 +153,14 @@ template("embedder") {
defines += invoker.defines
defines += [ "FLUTTER_ENGINE_NO_PROTOTYPES" ]

if (target_name == "flutter_tizen_mobile_experimental" ||
target_name == "flutter_tizen_tv_experimental" ||
target_name == "flutter_tizen_common_experimental") {
defines += [ "FLUTTER_TIZEN_EXPERIMENTAL" ]
sources += [ "tizen_renderer_vulkan.cc" ]
libs += [ "vulkan" ]
}

if (api_version != "6.0") {
sources += [
"flutter_tizen_nui.cc",
Expand Down Expand Up @@ -201,18 +210,36 @@ embedder("flutter_tizen_mobile") {
defines = [ "MOBILE_PROFILE" ]
}

embedder("flutter_tizen_mobile_experimental") {
target_type = "shared_library"

defines = [ "MOBILE_PROFILE" ]
}

embedder("flutter_tizen_tv") {
target_type = "shared_library"

defines = [ "TV_PROFILE" ]
}

embedder("flutter_tizen_tv_experimental") {
target_type = "shared_library"

defines = [ "TV_PROFILE" ]
}

embedder("flutter_tizen_common") {
target_type = "shared_library"

defines = [ "COMMON_PROFILE" ]
}

embedder("flutter_tizen_common_experimental") {
target_type = "shared_library"

defines = [ "COMMON_PROFILE" ]
}

Comment on lines +237 to +242
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@JSUYA JSUYA Oct 16, 2025

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I tried to test libflutter_tizen_common_experimental.so on an RPi4 with the Vulkan library installed.

I renamed libflutter_tizen_common_experimental.so to libflutter_tizen_common.so in the path flutter/bin/cache/artifacts/engine/tizen-arm/6.5.

c# hostapp ran the Vulkan renderer app normally.
However, c++ hostapp displayed the error message below. Do you know the cause?

E/STDERR_pkgmgr-server( 8385): [EXEC_CHECKER_PLUGIN_PARSER][ERROR] Not found library (	libflutter_tizen_common_experimental.so)
E/STDERR  ( 8112): /opt/usr/globalapps/com.example.test_cpp_6/bin/runner: error while loading shared libraries: libflutter_tizen_common_experimental.so: cannot open shared object file: No such file or directory

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@xiaowei-guan xiaowei-guan Nov 4, 2025

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Hello, I can't reproduce this issue:
below are my steps:

 2025  cp ../embedder/src/out/tizen_arm_6.5/libflutter_tizen_common_experimental.so ../flutter-tizen/flutter/bin/cache/artifacts/engine/tizen-arm/6.5/libflutter_tizen_common.so
 2026  sync
 2027  ../flutter-tizen/bin/flutter-tizen clean
 2028  ../flutter-tizen/bin/flutter-tizen run  --enable-impeller

and logs:

guanxw@samsung10022:~/flutter-tizen-3.35.3/sample$ ../flutter-tizen/bin/flutter-tizen run  --enable-impeller
Launching tizen/flutter/generated_main.dart on Tizen rpi4 in debug mode...
The partner profile is used for signing.
Building a Tizen application in debug mode...                      24.3s
✓ Built build/tizen/tpk/com.example.sample-1.0.0.tpk (30.1MB)
Installing build/tizen/tpk/com.example.sample-1.0.0.tpk...         19.4s
[E] [WARNING:flutter/impeller/renderer/backend/vulkan/driver_info_vk.cc(263)] Unknown GPU Driver Vendor: 5348. This is not an error.
[IMPORTANT:flutter/shell/platform/embedder/embedder_surface_vulkan_impeller.cc(80)] Using the Impeller rendering backend (Vulkan).
Syncing files to device Tizen rpi4...                               57ms

Flutter run key commands.
r Hot reload. 🔥🔥🔥
R Hot restart.
h List all available interactive commands.
d Detach (terminate "flutter run" but leave application running).
c Clear the screen
q Quit (terminate the application on the device).

A Dart VM Service on Tizen rpi4 is available at: http://127.0.0.1:43323/LoQ0Sh-iQZs=/
The Flutter DevTools debugger and profiler on Tizen rpi4 is available at: http://127.0.0.1:9101?uri=http://127.0.0.1:43323/LoQ0Sh-iQZs=/

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@JSUYA JSUYA Nov 7, 2025

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Thanks for the confirmation, but just looking at your logs I can't tell if it's a C# app or a C++ app.
I tried setting up RPI5+ aarch64 environment again and it still fails with c++ host app (--tizen-language=cpp).
(In the log it shows as rpi4 due to the fusing script.)

E/STDERR_pkgmgr-server( 5433): [EXEC_CHECKER_PLUGIN_PARSER][ERROR] Not found library (	libflutter_tizen_common_experimental.so)
E/STDERR  ( 5281): /opt/usr/globalapps/com.example.test_cpp_6/bin/runner: error while loading shared libraries: libflutter_tizen_common_experimental.so: cannot open shared object file: No such file or directory

I don't want to delay progress on this PR any longer. Since you have separated the feature into experimental so, it won't affect existing behavior.
Therefore, I think it's okay to continue monitoring this PR after it's merged.
So.. It needs to be synchronized with the Interop.cs of flutter-tizen. Please also prepare the flutter-tizen patch.
(The flag to use experimental.so can be prepared as a separate PR.)

If your C++ host app tests ok, please merge this patch.

Below is the log of my test.

Changed libflutter_tizen_common to libflutter_tizen_common_experimental.so

~/dev/os/f-project/flutter-tizen/flutter/bin/cache/artifacts/engine/tizen-arm64/6.5 ((HEAD detached at FETCH_HEAD)) 14:59:33 $ cp libflutter_tizen_common_experimental.so ./libflutter_tizen_common.so

C++ host app test

$ flutter-tizen create test_cpp_7 --tizen-language=cpp
Creating project test_cpp_7...
Resolving dependencies in `test_cpp_7`...
Downloading packages...
Got dependencies in `test_cpp_7`.
Wrote 137 files.

All done!
You can find general documentation for Flutter at: https://docs.flutter.dev/
Detailed API documentation is available at: https://api.flutter.dev/
If you prefer video documentation, consider: https://www.youtube.com/c/flutterdev

In order to run your application, type:

  $ cd test_cpp_7
  $ flutter run

Your application code is in test_cpp_7/lib/main.dart.

~/dev/os/f-project/dev 15:11:05 $ cd test_cpp_7/
~/dev/os/f-project/dev/test_cpp_7 15:11:10 $ vi tizen/tizen-manifest.xml            //modify api-version 6.0 to 6.5
~/dev/os/f-project/dev/test_cpp_7 15:11:32 $ flutter-tizen run --enable-impeller
Connected devices:
Linux (desktop)     • linux            • linux-x64      • Ubuntu 22.04.5 LTS 6.8.0-87-generic
Chrome (web)        • chrome           • web-javascript • Google Chrome 142.0.7444.59
Tizen rpi4 (mobile) • d633f6d91e953c01 • flutter-tester • Tizen 10.0
[1]: Linux (linux)
[2]: Chrome (chrome)
[3]: Tizen rpi4 (d633f6d91e953c01)
Please choose one (or "q" to quit): 3
Launching tizen/flutter/generated_main.dart on Tizen rpi4 in debug mode...
The platform profile is used for signing.
Building a Tizen application in debug mode...                          ⡿
   17.4s
✓ Built build/tizen/tpk/com.example.test_cpp_7-1.0.0.tpk (31.3MB)
Installing build/tizen/tpk/com.example.test_cpp_7-1.0.0.tpk...         7.9s


dlogutil STDERR
E/STDERR  (17113): /opt/usr/globalapps/com.example.test_cpp_7/bin/runner: error while loading shared libraries: libflutter_tizen_common_experimental.so: cannot open shared object file: No such file or directory

C# host app test

$ flutter-tizen create test_27
Creating project test_27...
Resolving dependencies in `test_27`...
Downloading packages...
Got dependencies in `test_27`.
Wrote 135 files.

All done!
You can find general documentation for Flutter at: https://docs.flutter.dev/
Detailed API documentation is available at: https://api.flutter.dev/
If you prefer video documentation, consider: https://www.youtube.com/c/flutterdev

In order to run your application, type:

  $ cd test_27
  $ flutter run

Your application code is in test_27/lib/main.dart.

~/dev/os/f-project/dev 15:15:02 $ cd test_27/
~/dev/os/f-project/dev/test_27 15:15:05 $ vi tizen/tizen-manifest.xml                  //modify api-version 6.0 to 6.5
$ flutter-tizen run --enable-impeller
Connected devices:
Linux (desktop)     • linux            • linux-x64      • Ubuntu 22.04.5 LTS 6.8.0-87-generic
Chrome (web)        • chrome           • web-javascript • Google Chrome 142.0.7444.59
Tizen rpi4 (mobile) • d633f6d91e953c01 • flutter-tester • Tizen 10.0
[1]: Linux (linux)
[2]: Chrome (chrome)
[3]: Tizen rpi4 (d633f6d91e953c01)
Please choose one (or "q" to quit): 3
Launching tizen/flutter/generated_main.dart on Tizen rpi4 in debug mode...
Building a Tizen application in debug mode...                          ⣿
The platform profile is used for signing.
Building a Tizen application in debug mode...                      13.9s
✓ Built build/tizen/tpk/com.example.test_27-1.0.0.tpk (31.4MB)
Installing build/tizen/tpk/com.example.test_27-1.0.0.tpk...         9.8s
[E] flutter_tizen_engine.cc: SetView(299) > renderer_type : 0
[E] [IMPORTANT:flutter/shell/platform/embedder/embedder_surface_gl_impeller.cc(99)] Using the Impeller rendering backend (OpenGL).
Syncing files to device Tizen rpi4...                               58ms

Flutter run key commands.
r Hot reload. 🔥🔥🔥
R Hot restart.
h List all available interactive commands.
d Detach (terminate "flutter run" but leave application running).
c Clear the screen
q Quit (terminate the application on the device).

A Dart VM Service on Tizen rpi4 is available at: http://127.0.0.1:45779/S7ddlTj023c=/
The Flutter DevTools debugger and profiler on Tizen rpi4 is available at: http://127.0.0.1:9105?uri=http://127.0.0.1:45779/S7ddlTj023c=/

embedder("flutter_tizen_source") {
target_type = "source_set"

Expand Down Expand Up @@ -257,8 +284,11 @@ copy("publish_headers_tizen") {
group("flutter_tizen") {
deps = [
":flutter_tizen_common",
":flutter_tizen_common_experimental",
":flutter_tizen_mobile",
":flutter_tizen_mobile_experimental",
":flutter_tizen_tv",
":flutter_tizen_tv_experimental",
":publish_cpp_client_wrapper",
":publish_headers_tizen",
]
Expand Down
3 changes: 2 additions & 1 deletion flutter/shell/platform/tizen/flutter_tizen.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -205,7 +205,8 @@ FlutterDesktopViewRef FlutterDesktopViewCreateFromNewWindow(
window_geometry, window_properties.transparent,
window_properties.focusable, window_properties.top_level,
window_properties.pointing_device_support,
window_properties.floating_menu_support, window_properties.window_handle);
window_properties.floating_menu_support, window_properties.window_handle,
window_properties.renderer_type == kEVulkan);

auto view = std::make_unique<flutter::FlutterTizenView>(
flutter::kImplicitViewId, std::move(window),
Expand Down
10 changes: 10 additions & 0 deletions flutter/shell/platform/tizen/flutter_tizen_engine.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,10 @@
#include "flutter/shell/platform/tizen/tizen_input_method_context.h"
#include "flutter/shell/platform/tizen/tizen_renderer_egl.h"

#ifdef FLUTTER_TIZEN_EXPERIMENTAL
#include "flutter/shell/platform/tizen/tizen_renderer_vulkan.h"
#endif

#ifdef NUI_SUPPORT
#include "flutter/shell/platform/tizen/tizen_renderer_nui_gl.h"
#include "flutter/shell/platform/tizen/tizen_view_nui.h"
Expand Down Expand Up @@ -95,6 +99,12 @@ std::unique_ptr<TizenRenderer> FlutterTizenEngine::CreateRenderer(
#endif
return std::make_unique<TizenRendererEgl>(
view_->tizen_view(), project_->HasArgument("--enable-impeller"));
case FlutterDesktopRendererType::kEVulkan:
#ifdef FLUTTER_TIZEN_EXPERIMENTAL
return std::make_unique<TizenRendererVulkan>(view_->tizen_view());
#else
return nullptr;
#endif
}
}

Expand Down
2 changes: 2 additions & 0 deletions flutter/shell/platform/tizen/public/flutter_tizen.h
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,8 @@ typedef struct FlutterDesktopView* FlutterDesktopViewRef;
typedef enum {
// The renderer based on EGL.
kEGL,
// The renderer based on Vulkan.
kEVulkan
} FlutterDesktopRendererType;

typedef enum {
Expand Down
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