NotForReview: Implement zero/one-copy texture for ozone freon using Intel DRM

ui/ozone/platform/drm/gpu/gbm_map_pixmap_intel.h

+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef UI_OZONE_PLATFORM_DRM_GPU_GBM_MAP_PIXMAP_INTEL_H_
+#define UI_OZONE_PLATFORM_DRM_GPU_GBM_MAP_PIXMAP_INTEL_H_
+
+extern "C" {
+#include <libdrm/intel_bufmgr.h>
+}
+
+#include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
+#include "ui/gfx/geometry/size.h"
+#include "ui/ozone/platform/drm/gpu/gbm_buffer_base.h"
+#include "ui/ozone/public/native_pixmap.h"
+#include "ui/ozone/public/surface_factory_ozone.h"
+
+namespace ui {
+
+class GbmDevice;
+
+class GbmMapPixmapIntel : public NativePixmap {
+ public:
+  static scoped_refptr<GbmMapPixmapIntel> CreatePixmap(
+      const scoped_refptr<GbmDevice>& gbm,
+      SurfaceFactoryOzone::BufferFormat format,
+      const gfx::Size& size,
+      gfx::GpuMemoryBufferHandle* handle);
+
+  // NativePixmap:
+  void* GetEGLClientBuffer() override;
+  int GetDmaBufFd() override;
+  int GetDmaBufPitch() override;
+
+ private:
+  GbmMapPixmapIntel();
+  ~GbmMapPixmapIntel() override;
+
+  bool Initialize(const scoped_refptr<GbmDevice>& gbm,
+                  SurfaceFactoryOzone::BufferFormat format,
+                  const gfx::Size& size,
+                  gfx::GpuMemoryBufferHandle* handle);
+
+  drm_intel_bo* buffer_;
+  base::ScopedFD prime_fd_;
+  uint32 stride_;
+
+  DISALLOW_COPY_AND_ASSIGN(GbmMapPixmapIntel);
+};
+
+}  // namespace ui
+
+#endif  // UI_OZONE_PLATFORM_DRM_GPU_GBM_MAP_PIXMAP_INTEL_H_