Implement kms vaapi capture

include/capture/kms_vaapi.h

@@ -0,0 +1,18 @@
+#ifndef GSR_CAPTURE_KMS_VAAPI_H
+#define GSR_CAPTURE_KMS_VAAPI_H
+
+#include "capture.h"
+#include "../vec2.h"
+#include <X11/X.h>
+
+typedef struct _XDisplay Display;
+
+typedef struct {
+    Display *dpy;
+    const char *display_to_capture; /* if this is "screen", then the entire x11 screen is captured (all displays). A copy is made of this */
+    const char *program_dir; /* ref */
+} gsr_capture_kms_vaapi_params;
+
+gsr_capture* gsr_capture_kms_vaapi_create(const gsr_capture_kms_vaapi_params *params);
+
+#endif /* GSR_CAPTURE_KMS_VAAPI_H */

include/kms/kms_client.h

@@ -0,0 +1,21 @@
+#ifndef GSR_KMS_CLIENT_H
+#define GSR_KMS_CLIENT_H
+
+#include "kms_shared.h"
+#include <sys/types.h>
+
+typedef struct {
+    pid_t kms_server_pid;
+    int socket_fd;
+    int client_fd;
+    char socket_path[27];
+    char *card_path;
+} gsr_kms_client;
+
+/* |card_path| should be a path to card, for example /dev/dri/card0 */
+int gsr_kms_client_init(gsr_kms_client *self, const char *card_path, const char *program_dir);
+void gsr_kms_client_deinit(gsr_kms_client *self);
+
+int gsr_kms_client_get_kms(gsr_kms_client *self, gsr_kms_response *response);
+
+#endif /* #define GSR_KMS_CLIENT_H */

include/kms/kms_shared.h

@@ -0,0 +1,45 @@
+#ifndef GSR_KMS_SHARED_H
+#define GSR_KMS_SHARED_H
+
+#include <stdint.h>
+
+typedef enum {
+    KMS_REQUEST_TYPE_GET_KMS
+} gsr_kms_request_type;
+
+typedef enum {
+    KMS_RESULT_OK,
+    KMS_RESULT_INVALID_REQUEST,
+    KMS_RESULT_FAILED_TO_OPEN_CARD,
+    KMS_RESULT_INSUFFICIENT_PERMISSIONS,
+    KMS_RESULT_FAILED_TO_GET_KMS,
+    KMS_RESULT_NO_KMS_AVAILABLE,
+    KMS_RESULT_FAILED_TO_SEND
+} gsr_kms_result;
+
+typedef struct {
+    int type; /* gsr_kms_request_type */
+    union {
+        char card_path[255];
+    } data;
+} gsr_kms_request;
+
+typedef struct {
+    int fd;
+    uint32_t width;
+    uint32_t height;
+    uint32_t pitch;
+    uint32_t offset;
+    uint32_t pixel_format;
+    uint64_t modifier;
+} gsr_kms_response_fd;
+
+typedef struct {
+    int result; /* gsr_kms_result */
+    union {
+        char err_msg[128];
+        gsr_kms_response_fd fd;
+    } data;
+} gsr_kms_response;
+
+#endif /* #define GSR_KMS_SHARED_H */

include/library_loader.h

@@ -1,42 +1,17 @@
 #ifndef GSR_LIBRARY_LOADER_H
 #define GSR_LIBRARY_LOADER_H
 
-#include <dlfcn.h>
 #include <stdbool.h>
-#include <stdio.h>
 
 typedef struct {
     void **func;
     const char *name;
 } dlsym_assign;
 
-static void* dlsym_print_fail(void *handle, const char *name, bool required) {
-    dlerror();
-    void *sym = dlsym(handle, name);
-    char *err_str = dlerror();
-
-    if(!sym)
-        fprintf(stderr, "%s: dlsym(handle, \"%s\") failed, error: %s\n", required ? "error" : "warning", name, err_str ? err_str : "(null)");
-
-    return sym;
-}
-
+void* dlsym_print_fail(void *handle, const char *name, bool required);
 /* |dlsyms| should be null terminated */
-static bool dlsym_load_list(void *handle, const dlsym_assign *dlsyms) {
-    bool success = true;
-    for(int i = 0; dlsyms[i].func; ++i) {
-        *dlsyms[i].func = dlsym_print_fail(handle, dlsyms[i].name, true);
-        if(!*dlsyms[i].func)
-            success = false;
-    }
-    return success;
-}
-
+bool dlsym_load_list(void *handle, const dlsym_assign *dlsyms);
 /* |dlsyms| should be null terminated */
-static void dlsym_load_list_optional(void *handle, const dlsym_assign *dlsyms) {
-    for(int i = 0; dlsyms[i].func; ++i) {
-        *dlsyms[i].func = dlsym_print_fail(handle, dlsyms[i].name, false);
-    }
-}
+void dlsym_load_list_optional(void *handle, const dlsym_assign *dlsyms);
 
 #endif /* GSR_LIBRARY_LOADER_H */

include/time.h

@@ -1,6 +0,0 @@
-#ifndef GSR_TIME_H
-#define GSR_TIME_H
-
-double clock_get_monotonic_seconds();
-
-#endif /* GSR_TIME_H */

include/utils.h

@@ -0,0 +1,26 @@
+#ifndef GSR_UTILS_H
+#define GSR_UTILS_H
+
+#include "vec2.h"
+#include <stdbool.h>
+#include <X11/extensions/Xrandr.h>
+
+typedef struct {
+    vec2i pos;
+    vec2i size;
+} gsr_monitor;
+
+typedef struct {
+    const char *name;
+    int name_len;
+    gsr_monitor *monitor;
+    bool found_monitor;
+} get_monitor_by_name_userdata;
+
+double clock_get_monotonic_seconds(void);
+
+typedef void (*active_monitor_callback)(const XRROutputInfo *output_info, const XRRCrtcInfo *crt_info, const XRRModeInfo *mode_info, void *userdata);
+void for_each_active_monitor_output(Display *display, active_monitor_callback callback, void *userdata);
+bool get_monitor_by_name(Display *display, const char *name, gsr_monitor *monitor);
+
+#endif /* GSR_UTILS_H */