switch to gitea actions

.drone.yml

@@ -1,21 +0,0 @@
-kind: pipeline
-type: docker
-name: default
-
-steps:
-- name: build
-  image: archlinux:latest
-  commands:
-  - pacman -Syu --noconfirm --needed base-devel libvncserver libxkbcommon libdrm libva git cmake clang
-  - export CFLAGS="-pipe -fno-plt -fexceptions -fstack-clash-protection -fcf-protection -Wp,-D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security"
-  - CC=gcc cmake -B gcc-out
-  - cmake --build gcc-out
-  - CC=clang cmake -B clang-out
-  - cmake --build clang-out
-
-trigger:
-  branch:
-  - dev
-  event:
-    exclude:
-    - pull_request

.forgejo/workflows/default.yml

@@ -0,0 +1,27 @@
+name: Build with gcc + clang
+on:
+  push:
+    branches: [dev]
+jobs:
+  build:
+    if: "github.event_name != 'push' || !contains(github.event.head_commit.message, '[skip ci]')"
+    runs-on: docker
+    container:
+      image: archlinux:latest
+    env:
+      CFLAGS: "-pipe -fno-plt -fexceptions -fstack-clash-protection -fcf-protection -Wp,-D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security"
+    steps:
+      - name: Prepare dependencies
+        run: |
+          pacman -Syu --noconfirm --needed nodejs git \
+            base-devel libvncserver libxkbcommon libdrm libva cmake clang
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - name: Build with gcc
+        run: |
+          CC=gcc cmake -B gcc-out
+          cmake --build gcc-out
+      - name: Build with clang
+        run: |
+          CC=clang cmake -B clang-out
+          cmake --build clang-out

CMakeLists.txt

@@ -23,12 +23,22 @@ IF(NOT HAVE_LINUX_API_HEADERS)
 ENDIF()
 
 include(CheckSymbolExists)
-check_symbol_exists(SYS_pidfd_getfd "sys/syscall.h" HAVE_PIDFD_GETFD_SYSCALL)
-IF(NOT HAVE_PIDFD_GETFD_SYSCALL)
+check_symbol_exists(SYS_pidfd_getfd "sys/syscall.h" HAVE_LIBC_SYS_pidfd_getfd)
+IF(NOT HAVE_LIBC_SYS_pidfd_getfd)
   message(WARNING "pidfd_getfd syscall not found, the --screen-blank options will be disabled")
   target_compile_options(kmsvnc PUBLIC -DDISABLE_KMSVNC_SCREEN_BLANK)
   list(REMOVE_ITEM kmsvnc_SOURCES drm_master.c)
 ENDIF()
+include(CMakePushCheckState)
+cmake_push_check_state()
+set(CMAKE_REQUIRED_INCLUDES ${LIBDRM_INCLUDEDIR}/libdrm) # can't do anything about that
+set(CMAKE_REQUIRED_LIBRARIES ${LIBDRM_LIBRARIES})
+check_symbol_exists(drmGetFormatName "xf86drm.h" HAVE_LIBDRM_drmGetFormatName)
+cmake_pop_check_state()
+IF(NOT HAVE_LIBDRM_drmGetFormatName)
+  message(WARNING "drmGetFormatName not found, format name printing will be disabled")
+  target_compile_options(kmsvnc PUBLIC -DDISABLE_KMSVNC_drmGetFormatName)
+ENDIF()
 
 
 target_sources(kmsvnc PUBLIC
@@ -36,18 +46,12 @@ target_sources(kmsvnc PUBLIC
 )
 target_include_directories(kmsvnc PUBLIC
   ${LIBDRM_INCLUDEDIR}
+  ${LIBDRM_INCLUDEDIR}/libdrm
   ${LIBVNCSERVER_INCLUDEDIR}
   ${XKBCOMMON_INCLUDEDIR}
   ${LIBVA_INCLUDEDIR}
   ${LIBVA_DRM_INCLUDEDIR}
 )
-target_compile_options(kmsvnc PUBLIC
-  ${LIBDRM_CFLAGS}
-  ${LIBVNCSERVER_CFLAGS}
-  ${XKBCOMMON_CFLAGS}
-  ${LIBVA_CFLAGS}
-  ${LIBVA_DRM_CFLAGS}
-)
 target_link_libraries(kmsvnc PUBLIC
   m
   ${LIBDRM_LIBRARIES}

drm.c

@@ -19,6 +19,16 @@
     #define fourcc_mod_is_vendor(modifier, vendor) \
             (fourcc_mod_get_vendor(modifier) == DRM_FORMAT_MOD_VENDOR_## vendor)
 #endif
+#ifdef DISABLE_KMSVNC_drmGetFormatName
+    static char* drmGetFormatName(uint32_t data) {
+        char *name = "missing drmGetFormatName";
+        char *out = malloc(strlen(name)+1);
+        if (out) {
+            memcpy(out, name, strlen(name)+1);
+        }
+        return out;
+    }
+#endif
 
 extern struct kmsvnc_data *kmsvnc;
 

kmsvnc.c

@@ -6,6 +6,7 @@
 #include <stdlib.h>
 #include <signal.h>
 #include <time.h>
+#include <unistd.h>
 #include <argp.h>
 #include <arpa/inet.h>
 
@@ -222,7 +223,7 @@ void signal_handler(int signum){
 }
 
 static struct argp_option kmsvnc_main_options[] = {
-    {"device", 'd', "/dev/dri/card0", 0, "DRM device"},
+    {"device", 'd', "/dev/dri/cardX", 0, "DRM device"},
     {"source-plane", 0xfefc, "0", 0, "Use specific plane"},
     {"source-crtc", 0xfefd, "0", 0, "Use specific crtc (to list all crtcs and planes, set this to -1)"},
     {"force-driver", 0xfefe, "i915", 0, "force a certain driver (for debugging)"},
@@ -245,6 +246,7 @@ static struct argp_option kmsvnc_main_options[] = {
     {"screen-blank", 0xff0a, 0, OPTION_ARG_OPTIONAL, "Blank screen with gamma set on crtc"},
     {"screen-blank-restore-linear", 0xff0b, 0, OPTION_ARG_OPTIONAL, "Restore linear values on exit in case of messed up gamma"},
 #endif
+    {"va-byteorder-swap", 0xff0c, 0, OPTION_ARG_OPTIONAL, "Force swap vaapi image rgb byteorder"},
     {"wakeup", 'w', 0, OPTION_ARG_OPTIONAL, "Move mouse to wake the system up before start"},
     {"disable-input", 'i', 0, OPTION_ARG_OPTIONAL, "Disable uinput"},
     {"desktop-name", 'n', "kmsvnc", 0, "Specify vnc desktop name"},
@@ -362,6 +364,9 @@ static error_t parse_opt(int key, char *arg, struct argp_state *state) {
         case 0xff0b:
             kmsvnc->screen_blank_restore = 1;
             break;
+        case 0xff0c:
+            kmsvnc->va_byteorder_swap = 1;
+            break;
         case 'w':
             kmsvnc->input_wakeup = 1;
             break;
@@ -394,7 +399,10 @@ int main(int argc, char **argv)
 
     kmsvnc->vnc_opt = vncopt;
 
-    kmsvnc->card = "/dev/dri/card0";
+    #define DEVICE_EXAMPLE_MAX_SIZE 15
+    #define DEVICE_EXAMPLE_FALLBACK "/dev/dri/card0"
+    static char device_example[DEVICE_EXAMPLE_MAX_SIZE] = DEVICE_EXAMPLE_FALLBACK;
+    kmsvnc->card = device_example;
     kmsvnc->va_derive_enabled = -1;
     kmsvnc->vnc_opt->bind = &(struct in_addr){0};
     kmsvnc->vnc_opt->always_shared = 1;
@@ -408,6 +416,18 @@ int main(int argc, char **argv)
     struct argp argp = {kmsvnc_main_options, parse_opt, args_doc, doc};
     argp_parse(&argp, argc, argv, 0, 0, NULL);
 
+    if (kmsvnc->card == device_example) {
+        for (int i = 0; i < 10; i++) {
+            snprintf(kmsvnc->card, DEVICE_EXAMPLE_MAX_SIZE, "/dev/dri/card%d", i);
+            if (!access(kmsvnc->card, F_OK)) {
+                break;
+            }
+            else {
+                snprintf(kmsvnc->card, DEVICE_EXAMPLE_MAX_SIZE, DEVICE_EXAMPLE_FALLBACK);
+            }
+        }
+    }
+
     if (!kmsvnc->disable_input) {
         const char* XKB_DEFAULT_LAYOUT = getenv("XKB_DEFAULT_LAYOUT");
         if (!XKB_DEFAULT_LAYOUT || strcmp(XKB_DEFAULT_LAYOUT, "") == 0) {

kmsvnc.h

@@ -45,6 +45,7 @@ struct kmsvnc_data
     int input_offy;
     char screen_blank;
     char screen_blank_restore;
+    char va_byteorder_swap;
     struct kmsvnc_drm_data *drm;
     struct kmsvnc_input_data *input;
     struct kmsvnc_keymap_data *keymap;

va.c

@@ -89,8 +89,8 @@ struct va_fmt_data {
 static VAImageFormat* vaImgFmt_apply_quirks(struct va_fmt_data* data) {
     static VAImageFormat ret = {0};
     memcpy(&ret, data->fmt, sizeof(VAImageFormat));
-    if (!strncmp(kmsvnc->va->vendor_string, "Mesa", 4) && data->depth != 30) {
-        printf("applying mesa quirk\n");
+    if ((kmsvnc->va_byteorder_swap ^ !strncmp(kmsvnc->va->vendor_string, "Mesa", 4)) && data->depth != 30) {
+        printf("applying rgb mask byte order swap\n");
         ret.blue_mask = __builtin_bswap32(data->fmt->blue_mask);
         ret.green_mask = __builtin_bswap32(data->fmt->green_mask);
         ret.red_mask = __builtin_bswap32(data->fmt->red_mask);