gecko/gfx/layers/ipc/LayersSurfaces.ipdlh

/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

include protocol PGrallocBuffer;


using struct gfxPoint from "gfxPoint.h";
using struct nsIntRect from "nsRect.h";
using nsIntRegion from "nsRegion.h";
using struct nsIntSize from "nsSize.h";
using struct mozilla::layers::MagicGrallocBufferHandle from "gfxipc/ShadowLayerUtils.h";
using struct mozilla::layers::SurfaceDescriptorX11 from "gfxipc/ShadowLayerUtils.h";
using struct mozilla::null_t from "ipc/IPCMessageUtils.h";
using mozilla::WindowsHandle from "ipc/IPCMessageUtils.h";
using mozilla::gl::SharedTextureHandle from "GLContextTypes.h";
using mozilla::gl::SharedTextureShareType from "GLContextTypes.h";
using mozilla::gfx::SurfaceStreamHandle from "SurfaceTypes.h";
using mozilla::gfx::SurfaceFormat from "mozilla/gfx/Types.h";
using mozilla::gfx::IntSize from "mozilla/gfx/Point.h";

namespace mozilla {
namespace layers {

union MaybeMagicGrallocBufferHandle {
  MagicGrallocBufferHandle;
  null_t;
};

struct SurfaceDescriptorD3D9 {
  // IDirect3DTexture9*
  uintptr_t texture;
};

struct SurfaceDescriptorDIB {
  // gfxWindowsSurface*
  uintptr_t surface;
};

struct SurfaceDescriptorD3D10 {
  WindowsHandle handle;
  bool hasAlpha;
};

struct SurfaceDescriptorMacIOSurface {
  uint32_t surface;
  double scaleFactor;
  bool hasAlpha;
};

struct SharedTextureDescriptor {
  SharedTextureShareType shareType;
  SharedTextureHandle handle;
  IntSize size;
  bool inverted;
};

struct BasicShmTileDescriptor {
  Shmem reusableSurface;
};

struct BasicTileDescriptor {
  uintptr_t reusableSurface;
};

struct PlaceholderTileDescriptor {
};

union TileDescriptor {
  BasicTileDescriptor;
  BasicShmTileDescriptor;
  PlaceholderTileDescriptor;
};

struct SurfaceDescriptorTiles {
  nsIntRegion validRegion;
  nsIntRegion paintedRegion;
  TileDescriptor[] tiles;
  int         retainedWidth;
  int         retainedHeight;
  float       resolution;
};

struct NewSurfaceDescriptorGralloc {
  PGrallocBuffer buffer;
  /**
   * android::GraphicBuffer has a size information. But there are cases
   * that GraphicBuffer's size and actual video's size are different.
   * Extra size member is necessary. See Bug 850566.
   */
  IntSize size;
};

// XXX - soon to be removed
struct SurfaceDescriptorGralloc {
  PGrallocBuffer buffer;
  /**
   * android::GraphicBuffer has a size information. But there are cases
   * that GraphicBuffer's size and actual video's size are different.
   * Extra size member is necessary. See Bug 850566.
   */
  nsIntSize size;

  /**
   * We can have one source producing gralloc buffers and sharing them
   * with another source that may also produce its own gralloc buffers.
   * This happens for camera preview buffers sent to video code.  When
   * that happens, the producer can mark the buffer as "external" to
   * prevent its consumer from mistakenly freeing the buffer.
   */
  bool external;

  /**
   * This gralloc buffer will be treated as if the RB bytes are swapped.
   * This is useful for rendering using Cairo/Thebes, because there is no
   * BGRX Android pixel format, and so we have to do byte swapping.
   *
   * For example, if the GraphicBuffer has an Android pixel format of
   * PIXEL_FORMAT_RGBA_8888 and isRBSwapped is true, when it is sampled
   * (for example, with GL), a BGRA shader should be used.
   */
  bool isRBSwapped;
};

struct SurfaceStreamDescriptor {
  SurfaceStreamHandle handle;
  bool yflip;
};

// XXX - can be removed as soon as DeprecatedImageClientSingle is removed
struct YCbCrImage {
  Shmem data;
  uint64_t owner;
};

// XXX remove RGBImage (see bug 847914)
struct RGBImage {
  Shmem data;
  nsIntRect picture;
  uint32_t rgbFormat;
  uint64_t owner;
};

struct MemoryImage {
  uintptr_t data;
  IntSize size;
  uint32_t stride;
  uint32_t format;
};

/**
 * Used for shmem-backed YCbCr and (flavors of) RGBA textures
 */
struct SurfaceDescriptorShmem {
  Shmem data;
  SurfaceFormat format;
};

/**
 * Used for "raw memory"-backed YCbCr and (flavors of) RGBA textures
 */
 struct SurfaceDescriptorMemory {
  uintptr_t data;
  SurfaceFormat format;
};

union SurfaceDescriptor {
  SurfaceDescriptorShmem;
  SurfaceDescriptorMemory;
  SurfaceDescriptorD3D9;
  SurfaceDescriptorDIB;
  SurfaceDescriptorD3D10;
  SurfaceDescriptorX11;
  SharedTextureDescriptor;
  SurfaceStreamDescriptor;
  SurfaceDescriptorMacIOSurface;
  NewSurfaceDescriptorGralloc;
  YCbCrImage;                 // XXX - deprecated
  SurfaceDescriptorGralloc;   // XXX - deprecated
  Shmem;                      // XXX - deprecated
  RGBImage;                   // XXX - deprecated
  MemoryImage;                // XXX - deprecated
  null_t;
};

} // namespace
} // namespace