[gnome-games/wip/exalm/3ds: 6/9] flatpak: Bundle Citra patches

[Alexander Mikhaylenko <alexm src gnome org>]

commit 35e608ef736585954f13e6e2a63274c7af3d9d13
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Thu Dec 10 22:20:43 2020 +0500

    flatpak: Bundle Citra patches
    
    Include patches for the following pull requests:
    
     * https://github.com/libretro/citra/pull/80
     * https://github.com/libretro/citra/pull/81
    
    This should be reverted once they are merged.

 .../citra-Add-an-option-to-hide-pointer.patch      | 68 ++++++++++++++++++++++
 ...-when-changing-screen-layout-to-top-botto.patch | 35 +++++++++++
 flatpak/libretro-cores/libretro-citra.json         |  8 +++
 3 files changed, 111 insertions(+)
---
diff --git a/flatpak/libretro-cores/citra-Add-an-option-to-hide-pointer.patch 
b/flatpak/libretro-cores/citra-Add-an-option-to-hide-pointer.patch
new file mode 100644
index 00000000..f8e0035b
--- /dev/null
+++ b/flatpak/libretro-cores/citra-Add-an-option-to-hide-pointer.patch
@@ -0,0 +1,68 @@
+From e891bcbc6967738a1fd760350dd6eb718dc121c2 Mon Sep 17 00:00:00 2001
+From: Alexander Mikhaylenko <alexm gnome org>
+Date: Sun, 6 Dec 2020 17:28:24 +0500
+Subject: [PATCH 1/2] Add an option to hide pointer
+
+---
+ src/citra_libretro/citra_libretro.cpp             | 3 +++
+ src/citra_libretro/core_settings.h                | 1 +
+ src/citra_libretro/emu_window/libretro_window.cpp | 3 ++-
+ 3 files changed, 6 insertions(+), 1 deletion(-)
+
+diff --git a/src/citra_libretro/citra_libretro.cpp b/src/citra_libretro/citra_libretro.cpp
+index 6e9a065f7..212c4c0d8 100644
+--- a/src/citra_libretro/citra_libretro.cpp
++++ b/src/citra_libretro/citra_libretro.cpp
+@@ -102,6 +102,7 @@ void LibRetro::OnConfigureEnvironment() {
+          "Right analog function; C-Stick and Touchscreen Pointer|Touchscreen Pointer|C-Stick"},
+         {"citra_deadzone", "Emulated pointer deadzone (%); 15|20|25|30|35|0|5|10"},
+         {"citra_mouse_touchscreen", "Enable mouse input for touchscreen; enabled|disabled"},
++        {"citra_mouse_show_pointer", "Show mouse pointer for touchscreen; enabled|disabled"},
+         {"citra_use_virtual_sd", "Enable virtual SD card; enabled|disabled"},
+         {"citra_use_libretro_save_path", "Savegame location; LibRetro Default|Citra Default"},
+         {"citra_is_new_3ds", "3DS system model; Old 3DS|New 3DS"},
+@@ -187,6 +188,8 @@ void UpdateSettings() {
+         LibRetro::FetchVariable("citra_use_gdbstub", "disabled") == "enabled";
+     LibRetro::settings.mouse_touchscreen =
+         LibRetro::FetchVariable("citra_mouse_touchscreen", "enabled") == "enabled";
++    LibRetro::settings.mouse_show_pointer =
++        LibRetro::FetchVariable("citra_mouse_show_pointer", "enabled") == "enabled";
+ 
+     // These values are a bit more hard to define, unfortunately.
+     auto scaling = LibRetro::FetchVariable("citra_resolution_factor", "1x (Native)");
+diff --git a/src/citra_libretro/core_settings.h b/src/citra_libretro/core_settings.h
+index 4bb9f34b1..bac6e014f 100644
+--- a/src/citra_libretro/core_settings.h
++++ b/src/citra_libretro/core_settings.h
+@@ -19,6 +19,7 @@ struct CoreSettings {
+     LibRetro::CStickFunction analog_function;
+ 
+     bool mouse_touchscreen;
++    bool mouse_show_pointer;
+ 
+ } extern settings;
+ 
+diff --git a/src/citra_libretro/emu_window/libretro_window.cpp 
b/src/citra_libretro/emu_window/libretro_window.cpp
+index 3e6c66b03..d87fa8a6c 100644
+--- a/src/citra_libretro/emu_window/libretro_window.cpp
++++ b/src/citra_libretro/emu_window/libretro_window.cpp
+@@ -7,6 +7,7 @@
+ 
+ #include "audio_core/audio_types.h"
+ #include "citra_libretro/citra_libretro.h"
++#include "citra_libretro/core_settings.h"
+ #include "citra_libretro/environment.h"
+ #include "citra_libretro/input/input_factory.h"
+ #include "core/3ds.h"
+@@ -58,7 +59,7 @@ void EmuWindow_LibRetro::SwapBuffers() {
+ 
+     ResetGLState();
+ 
+-    if (tracker != nullptr) {
++    if (tracker != nullptr && LibRetro::settings.mouse_show_pointer) {
+         tracker->Render(width, height);
+     }
+ 
+-- 
+2.29.2
+
diff --git a/flatpak/libretro-cores/citra-Clean-frame-when-changing-screen-layout-to-top-botto.patch 
b/flatpak/libretro-cores/citra-Clean-frame-when-changing-screen-layout-to-top-botto.patch
new file mode 100644
index 00000000..7a2c36e9
--- /dev/null
+++ b/flatpak/libretro-cores/citra-Clean-frame-when-changing-screen-layout-to-top-botto.patch
@@ -0,0 +1,35 @@
+From 536e19b9e35fd88f60a979bcf2ff118f673b0332 Mon Sep 17 00:00:00 2001
+From: Alexander Mikhaylenko <alexm gnome org>
+Date: Sun, 6 Dec 2020 17:50:09 +0500
+Subject: [PATCH 2/2] Clean frame when changing screen layout to top/bottom or
+ large/small
+
+These layouts have empty areas which will contain leftover pixels otherwise.
+---
+ src/citra_libretro/emu_window/libretro_window.cpp | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/src/citra_libretro/emu_window/libretro_window.cpp 
b/src/citra_libretro/emu_window/libretro_window.cpp
+index d87fa8a6c..4094ca10a 100644
+--- a/src/citra_libretro/emu_window/libretro_window.cpp
++++ b/src/citra_libretro/emu_window/libretro_window.cpp
+@@ -164,6 +164,8 @@ void EmuWindow_LibRetro::UpdateLayout() {
+             baseX *= scaling;
+             baseY *= scaling;
+         }
++
++        doCleanFrame = true;
+         break;
+     case Settings::LayoutOption::SideScreen:
+         baseX = Core::kScreenBottomWidth + Core::kScreenTopWidth;
+@@ -181,6 +183,7 @@ void EmuWindow_LibRetro::UpdateLayout() {
+         baseY = Core::kScreenTopHeight + Core::kScreenBottomHeight;
+         baseX *= scaling;
+         baseY *= scaling;
++        doCleanFrame = true;
+         break;
+     }
+ 
+-- 
+2.29.2
+
diff --git a/flatpak/libretro-cores/libretro-citra.json b/flatpak/libretro-cores/libretro-citra.json
index bd37b54b..f533cc9a 100644
--- a/flatpak/libretro-cores/libretro-citra.json
+++ b/flatpak/libretro-cores/libretro-citra.json
@@ -22,6 +22,14 @@
                 {
                     "type": "git",
                     "url": "https://github.com/libretro/citra.git";
+                },
+                {
+                    "type": "patch",
+                    "path": "citra-Add-an-option-to-hide-pointer.patch"
+                },
+                {
+                    "type": "patch",
+                    "path": "citra-Clean-frame-when-changing-screen-layout-to-top-botto.patch"
                 }
             ],
             "modules" : [