virtio-gpu: add a pixman helper header

This will allow to share the format conversion function with
vhost-user-gpu.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20190524130946.31736-4-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/include/hw/virtio/virtio-gpu-pixman.h b/include/hw/virtio/virtio-gpu-pixman.h
new file mode 100644
index 0000000000..4dba782758
--- /dev/null
+++ b/include/hw/virtio/virtio-gpu-pixman.h
@@ -0,0 +1,45 @@
+/*
+ * Virtio GPU Device
+ *
+ * Copyright Red Hat, Inc. 2013-2014
+ *
+ * Authors:
+ *     Dave Airlie <airlied@redhat.com>
+ *     Gerd Hoffmann <kraxel@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef HW_VIRTIO_GPU_PIXMAN_H
+#define HW_VIRTIO_GPU_PIXMAN_H
+
+#include "ui/qemu-pixman.h"
+#include "standard-headers/linux/virtio_gpu.h"
+
+static inline pixman_format_code_t
+virtio_gpu_get_pixman_format(uint32_t virtio_gpu_format)
+{
+    switch (virtio_gpu_format) {
+    case VIRTIO_GPU_FORMAT_B8G8R8X8_UNORM:
+        return PIXMAN_BE_b8g8r8x8;
+    case VIRTIO_GPU_FORMAT_B8G8R8A8_UNORM:
+        return PIXMAN_BE_b8g8r8a8;
+    case VIRTIO_GPU_FORMAT_X8R8G8B8_UNORM:
+        return PIXMAN_BE_x8r8g8b8;
+    case VIRTIO_GPU_FORMAT_A8R8G8B8_UNORM:
+        return PIXMAN_BE_a8r8g8b8;
+    case VIRTIO_GPU_FORMAT_R8G8B8X8_UNORM:
+        return PIXMAN_BE_r8g8b8x8;
+    case VIRTIO_GPU_FORMAT_R8G8B8A8_UNORM:
+        return PIXMAN_BE_r8g8b8a8;
+    case VIRTIO_GPU_FORMAT_X8B8G8R8_UNORM:
+        return PIXMAN_BE_x8b8g8r8;
+    case VIRTIO_GPU_FORMAT_A8B8G8R8_UNORM:
+        return PIXMAN_BE_a8b8g8r8;
+    default:
+        return 0;
+    }
+}
+
+#endif