gecko-dev/gfx/layers/d3d9/DeviceManagerD3D9.h

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* 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/. */
#ifndef GFX_DEVICEMANAGERD3D9_H
#define GFX_DEVICEMANAGERD3D9_H
#include "gfxTypes.h"
#include "nsAutoPtr.h"
#include "d3d9.h"
#include "nsTArray.h"
#include "mozilla/layers/CompositorTypes.h"
#include "mozilla/RefPtr.h"
#include "mozilla/gfx/Rect.h"
namespace mozilla {
namespace layers {
class DeviceManagerD3D9;
class Nv3DVUtils;
class Layer;
class TextureSourceD3D9;
// Shader Constant locations
const int CBmLayerTransform = 0;
const int CBmProjection = 4;
const int CBvRenderTargetOffset = 8;
const int CBvTextureCoords = 9;
const int CBvLayerQuad = 10;
// we don't use opacity with solid color shaders
const int CBfLayerOpacity = 0;
const int CBvColor = 0;
enum DeviceManagerState {
// The device and swap chain are OK.
DeviceOK,
// The device or swap chain are in a bad state, and we should not render.
DeviceFail,
// The device is lost and cannot be reset, the user should forget the
// current device manager and create a new one.
DeviceMustRecreate,
};
/**
* This structure is used to pass rectangles to our shader constant. We can use
* this for passing rectangular areas to SetVertexShaderConstant. In the format
* of a 4 component float(x,y,width,height). Our vertex shader can then use
* this to construct rectangular positions from the 0,0-1,1 quad that we source
* it with.
*/
struct ShaderConstantRect
{
float mX, mY, mWidth, mHeight;
// Provide all the commonly used argument types to prevent all the local
// casts in the code.
ShaderConstantRect(float aX, float aY, float aWidth, float aHeight)
: mX(aX), mY(aY), mWidth(aWidth), mHeight(aHeight)
{ }
ShaderConstantRect(int32_t aX, int32_t aY, int32_t aWidth, int32_t aHeight)
: mX((float)aX), mY((float)aY)
, mWidth((float)aWidth), mHeight((float)aHeight)
{ }
ShaderConstantRect(int32_t aX, int32_t aY, float aWidth, float aHeight)
: mX((float)aX), mY((float)aY), mWidth(aWidth), mHeight(aHeight)
{ }
// For easy passing to SetVertexShaderConstantF.
operator float* () { return &mX; }
};
/**
* SwapChain class, this class manages the swap chain belonging to a
* LayerManagerD3D9.
*/
class SwapChainD3D9 final
{
NS_INLINE_DECL_REFCOUNTING(SwapChainD3D9)
public:
/**
* This function will prepare the device this swap chain belongs to for
* rendering to this swap chain. Only after calling this function can the
* swap chain be drawn to, and only until this function is called on another
* swap chain belonging to this device will the device draw to it. Passed in
* is the size of the swap chain. If the window size differs from the size
* during the last call to this function the swap chain will resize. Note that
* in no case does this function guarantee the backbuffer to still have its
* old content.
*/
DeviceManagerState PrepareForRendering();
already_AddRefed<IDirect3DSurface9> GetBackBuffer();
/**
* This function will present the selected rectangle of the swap chain to
* its associated window.
*/
void Present(const gfx::IntRect &aRect);
void Present();
private:
friend class DeviceManagerD3D9;
SwapChainD3D9(DeviceManagerD3D9 *aDeviceManager);
// Private destructor, to discourage deletion outside of Release():
~SwapChainD3D9();
bool Init(HWND hWnd);
/**
* This causes us to release our swap chain, clearing out our resource usage
* so the master device may reset.
*/
void Reset();
RefPtr<IDirect3DSwapChain9> mSwapChain;
RefPtr<DeviceManagerD3D9> mDeviceManager;
HWND mWnd;
};
/**
* Device manager, this class is used by the layer managers to share the D3D9
* device and create swap chains for the individual windows the layer managers
* belong to.
*/
class DeviceManagerD3D9 final
{
public:
DeviceManagerD3D9();
NS_INLINE_DECL_THREADSAFE_REFCOUNTING(DeviceManagerD3D9)
/**
* Initialises the device manager, the underlying device, and everything else
* the manager needs.
* Returns true if initialisation succeeds, false otherwise.
* Note that if initisalisation fails, you cannot try again - you must throw
* away the DeviceManagerD3D9 and create a new one.
*/
bool Init();
/**
* Sets up the render state for the device for layer rendering.
*/
void SetupRenderState();
/**
* Create a swap chain setup to work with the specified window.
*/
already_AddRefed<SwapChainD3D9> CreateSwapChain(HWND hWnd);
IDirect3DDevice9 *device() { return mDevice; }
bool IsD3D9Ex() { return mDeviceEx; }
bool HasDynamicTextures() { return mHasDynamicTextures; }
enum ShaderMode {
RGBLAYER,
RGBALAYER,
COMPONENTLAYERPASS1,
COMPONENTLAYERPASS2,
YCBCRLAYER,
SOLIDCOLORLAYER
};
// returns the register to be used for the mask texture, if appropriate
uint32_t SetShaderMode(ShaderMode aMode, MaskType aMaskType);
/**
* Return pointer to the Nv3DVUtils instance
*/
Nv3DVUtils *GetNv3DVUtils() { return mNv3DVUtils; }
/**
* Returns true if this device was removed.
*/
bool DeviceWasRemoved() { return mDeviceWasRemoved; }
uint32_t GetDeviceResetCount() { return mDeviceResetCount; }
int32_t GetMaxTextureSize() { return mMaxTextureSize; }
// Removes aHost from our list of texture hosts if it is the head.
void RemoveTextureListHead(TextureSourceD3D9* aHost);
/**
* Creates a texture using our device.
* If needed, we keep a record of the new texture, so the texture can be
* released. In this case, aTextureHostIDirect3DTexture9 must be non-null.
*/
already_AddRefed<IDirect3DTexture9> CreateTexture(const gfx::IntSize &aSize,
_D3DFORMAT aFormat,
D3DPOOL aPool,
TextureSourceD3D9* aTextureHostIDirect3DTexture9);
#ifdef DEBUG
// Looks for aFind in the list of texture hosts.
// O(n) so only use for assertions.
bool IsInTextureHostList(TextureSourceD3D9* aFind);
#endif
/**
* This function verifies the device is ready for rendering, internally this
* will test the cooperative level of the device and reset the device if
* needed. If this returns false subsequent rendering calls may return errors.
*/
DeviceManagerState VerifyReadyForRendering();
static uint32_t sMaskQuadRegister;
private:
friend class SwapChainD3D9;
~DeviceManagerD3D9();
void DestroyDevice();
/**
* This will fill our vertex buffer with the data of our quad, it may be
* called when the vertex buffer is recreated.
*/
bool CreateVertexBuffer();
/**
* Release all textures created by this device manager.
*/
void ReleaseTextureResources();
/**
* Add aHost to our list of texture hosts.
*/
void RegisterTextureHost(TextureSourceD3D9* aHost);
/* Array used to store all swap chains for device resets */
nsTArray<SwapChainD3D9*> mSwapChains;
/* The D3D device we use */
RefPtr<IDirect3DDevice9> mDevice;
/* The D3D9Ex device - only valid on Vista+ with WDDM */
RefPtr<IDirect3DDevice9Ex> mDeviceEx;
/* An instance of the D3D9 object */
RefPtr<IDirect3D9> mD3D9;
/* An instance of the D3D9Ex object - only valid on Vista+ with WDDM */
RefPtr<IDirect3D9Ex> mD3D9Ex;
/* Vertex shader used for layer quads */
RefPtr<IDirect3DVertexShader9> mLayerVS;
/* Pixel shader used for RGB textures */
RefPtr<IDirect3DPixelShader9> mRGBPS;
/* Pixel shader used for RGBA textures */
RefPtr<IDirect3DPixelShader9> mRGBAPS;
/* Pixel shader used for component alpha textures (pass 1) */
RefPtr<IDirect3DPixelShader9> mComponentPass1PS;
/* Pixel shader used for component alpha textures (pass 2) */
RefPtr<IDirect3DPixelShader9> mComponentPass2PS;
/* Pixel shader used for RGB textures */
RefPtr<IDirect3DPixelShader9> mYCbCrPS;
/* Pixel shader used for solid colors */
RefPtr<IDirect3DPixelShader9> mSolidColorPS;
/* As above, but using a mask layer */
RefPtr<IDirect3DVertexShader9> mLayerVSMask;
RefPtr<IDirect3DVertexShader9> mLayerVSMask3D;
RefPtr<IDirect3DPixelShader9> mRGBPSMask;
RefPtr<IDirect3DPixelShader9> mRGBAPSMask;
RefPtr<IDirect3DPixelShader9> mRGBAPSMask3D;
RefPtr<IDirect3DPixelShader9> mComponentPass1PSMask;
RefPtr<IDirect3DPixelShader9> mComponentPass2PSMask;
RefPtr<IDirect3DPixelShader9> mYCbCrPSMask;
RefPtr<IDirect3DPixelShader9> mSolidColorPSMask;
/* Vertex buffer containing our basic vertex structure */
RefPtr<IDirect3DVertexBuffer9> mVB;
/* Our vertex declaration */
RefPtr<IDirect3DVertexDeclaration9> mVD;
/* We maintain a doubly linked list of all d3d9 texture hosts which host
* d3d9 textures created by this device manager.
* Texture hosts must remove themselves when they disappear (i.e., we
* expect all hosts in the list to be valid).
* The list is cleared when we release the textures.
*/
TextureSourceD3D9* mTextureHostList;
/* Our focus window - this is really a dummy window we can associate our
* device with.
*/
HWND mFocusWnd;
/* we use this to help track if our device temporarily or permanently lost */
HMONITOR mDeviceMonitor;
uint32_t mDeviceResetCount;
uint32_t mMaxTextureSize;
/**
* Wrap (repeat) or clamp textures. We prefer the former so we can do buffer
* rotation, but some older hardware doesn't support it.
*/
D3DTEXTUREADDRESS mTextureAddressingMode;
/* If this device supports dynamic textures */
bool mHasDynamicTextures;
/* If this device was removed */
bool mDeviceWasRemoved;
/* Nv3DVUtils instance */
nsAutoPtr<Nv3DVUtils> mNv3DVUtils;
/**
* Verifies all required device capabilities are present.
*/
bool VerifyCaps();
};
} /* namespace layers */
} /* namespace mozilla */
#endif /* GFX_DEVICEMANAGERD3D9_H */