Fixed broken files/code and other errors

1 files changed, 62 insertions, 0 deletions

diff --git a/src/backend/driver.h b/src/backend/driver.h
new file mode 100644
index 0000000..a37cda3
--- /dev/null
+++ b/src/backend/driver.h
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: MPL-2.0
+// Copyright (c) Yuxuan Shui <[email protected]>
+
+#pragma once
+
+#include <stddef.h>
+#include <stdio.h>
+#include <xcb/xcb.h>
+
+#include "utils.h"
+
+struct session;
+struct backend_base;
+
+// A list of known driver quirks:
+// *  NVIDIA driver doesn't like seeing the same pixmap under different
+//    ids, so avoid naming the pixmap again when it didn't actually change.
+
+/// A list of possible drivers.
+/// The driver situation is a bit complicated. There are two drivers we care about: the
+/// DDX, and the OpenGL driver. They are usually paired, but not always, since there is
+/// also the generic modesetting driver.
+/// This enum represents _both_ drivers.
+enum driver {
+	DRIVER_AMDGPU = 1,        // AMDGPU for DDX, radeonsi for OpenGL
+	DRIVER_RADEON = 2,        // ATI for DDX, mesa r600 for OpenGL
+	DRIVER_FGLRX = 4,
+	DRIVER_NVIDIA = 8,
+	DRIVER_NOUVEAU = 16,
+	DRIVER_INTEL = 32,
+	DRIVER_MODESETTING = 64,
+};
+
+static const char *driver_names[] = {
+    "AMDGPU", "Radeon", "fglrx", "NVIDIA", "nouveau", "Intel", "modesetting",
+};
+
+/// Return a list of all drivers currently in use by the X server.
+/// Note, this is a best-effort test, so no guarantee all drivers will be detected.
+enum driver detect_driver(xcb_connection_t *, struct backend_base *, xcb_window_t);
+
+/// Apply driver specified global workarounds. It's safe to call this multiple times.
+void apply_driver_workarounds(struct session *ps, enum driver);
+
+// Print driver names to stdout, for diagnostics
+static inline void print_drivers(enum driver drivers) {
+	const char *seen_drivers[ARR_SIZE(driver_names)];
+	int driver_count = 0;
+	for (size_t i = 0; i < ARR_SIZE(driver_names); i++) {
+		if (drivers & (1ul << i)) {
+			seen_drivers[driver_count++] = driver_names[i];
+		}
+	}
+
+	if (driver_count > 0) {
+		printf("%s", seen_drivers[0]);
+		for (int i = 1; i < driver_count; i++) {
+			printf(", %s", seen_drivers[i]);
+		}
+	}
+	printf("\n");
+}