1 files changed, 58 insertions, 0 deletions

diff --git a/minui/graphics_drm.h b/minui/graphics_drm.h
new file mode 100644
index 000000000..de9621205
--- /dev/null
+++ b/minui/graphics_drm.h
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _GRAPHICS_DRM_H_
+#define _GRAPHICS_DRM_H_
+
+#include <stdint.h>
+
+#include <xf86drmMode.h>
+
+#include "graphics.h"
+#include "minui/minui.h"
+
+class GRSurfaceDrm : public GRSurface {
+ private:
+  uint32_t fb_id;
+  uint32_t handle;
+
+  friend class MinuiBackendDrm;
+};
+
+class MinuiBackendDrm : public MinuiBackend {
+ public:
+  GRSurface* Init() override;
+  GRSurface* Flip() override;
+  void Blank(bool) override;
+  ~MinuiBackendDrm() override;
+  MinuiBackendDrm();
+
+ private:
+  void DrmDisableCrtc(int drm_fd, drmModeCrtc* crtc);
+  void DrmEnableCrtc(int drm_fd, drmModeCrtc* crtc, GRSurfaceDrm* surface);
+  GRSurfaceDrm* DrmCreateSurface(int width, int height);
+  void DrmDestroySurface(GRSurfaceDrm* surface);
+  void DisableNonMainCrtcs(int fd, drmModeRes* resources, drmModeCrtc* main_crtc);
+  drmModeConnector* FindMainMonitor(int fd, drmModeRes* resources, uint32_t* mode_index);
+
+  GRSurfaceDrm* GRSurfaceDrms[2];
+  int current_buffer;
+  drmModeCrtc* main_monitor_crtc;
+  drmModeConnector* main_monitor_connector;
+  int drm_fd;
+};
+
+#endif  // _GRAPHICS_DRM_H_