mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
125 lines
3.0 KiB
C++
125 lines
3.0 KiB
C++
/* -*- Mode: c++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 40; -*- */
|
|
/* 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/. */
|
|
|
|
/* SharedSurface abstracts an actual surface (can be a GL texture, but
|
|
* not necessarily) that handles sharing.
|
|
* Its specializations are:
|
|
* SharedSurface_Basic (client-side bitmap, does readback)
|
|
* SharedSurface_GLTexture
|
|
* SharedSurface_EGLImage
|
|
* SharedSurface_ANGLEShareHandle
|
|
*/
|
|
|
|
#ifndef SHARED_SURFACE_H_
|
|
#define SHARED_SURFACE_H_
|
|
|
|
#include "mozilla/StandardInteger.h"
|
|
#include "mozilla/Attributes.h"
|
|
#include "GLDefs.h"
|
|
#include "gfxPoint.h"
|
|
#include "SurfaceTypes.h"
|
|
|
|
namespace mozilla {
|
|
namespace gfx {
|
|
|
|
class SurfaceFactory;
|
|
|
|
class SharedSurface
|
|
{
|
|
protected:
|
|
const SharedSurfaceType mType;
|
|
const APITypeT mAPI;
|
|
const AttachmentType mAttachType;
|
|
const gfxIntSize mSize;
|
|
const bool mHasAlpha;
|
|
bool mIsLocked;
|
|
|
|
SharedSurface(SharedSurfaceType type,
|
|
APITypeT api,
|
|
AttachmentType attachType,
|
|
const gfxIntSize& size,
|
|
bool hasAlpha)
|
|
: mType(type)
|
|
, mAPI(api)
|
|
, mAttachType(attachType)
|
|
, mSize(size)
|
|
, mHasAlpha(hasAlpha)
|
|
, mIsLocked(false)
|
|
{
|
|
}
|
|
|
|
public:
|
|
virtual ~SharedSurface() {
|
|
}
|
|
|
|
static void Copy(SharedSurface* src, SharedSurface* dest,
|
|
SurfaceFactory* factory);
|
|
|
|
// This locks the SharedSurface as the production buffer for the context.
|
|
// This is needed by backends which use PBuffers and/or EGLSurfaces.
|
|
virtual void LockProd() {
|
|
MOZ_ASSERT(!mIsLocked);
|
|
LockProdImpl();
|
|
mIsLocked = true;
|
|
}
|
|
|
|
// Unlocking is harmless if we're already unlocked.
|
|
virtual void UnlockProd() {
|
|
if (!mIsLocked)
|
|
return;
|
|
|
|
UnlockProdImpl();
|
|
mIsLocked = false;
|
|
}
|
|
|
|
virtual void LockProdImpl() = 0;
|
|
virtual void UnlockProdImpl() = 0;
|
|
|
|
virtual void Fence() = 0;
|
|
virtual bool WaitSync() = 0;
|
|
|
|
|
|
SharedSurfaceType Type() const {
|
|
return mType;
|
|
}
|
|
|
|
APITypeT APIType() const {
|
|
return mAPI;
|
|
}
|
|
|
|
AttachmentType AttachType() const {
|
|
return mAttachType;
|
|
}
|
|
|
|
const gfxIntSize& Size() const {
|
|
return mSize;
|
|
}
|
|
|
|
bool HasAlpha() const {
|
|
return mHasAlpha;
|
|
}
|
|
|
|
|
|
// For use when AttachType is correct.
|
|
virtual GLuint Texture() const {
|
|
MOZ_ASSERT(AttachType() == AttachmentType::GLTexture);
|
|
MOZ_CRASH("Did you forget to override this function?");
|
|
}
|
|
|
|
virtual GLenum TextureTarget() const {
|
|
return Texture() ? LOCAL_GL_TEXTURE_2D : 0;
|
|
}
|
|
|
|
virtual GLuint Renderbuffer() const {
|
|
MOZ_ASSERT(AttachType() == AttachmentType::GLRenderbuffer);
|
|
MOZ_CRASH("Did you forget to override this function?");
|
|
}
|
|
};
|
|
|
|
} /* namespace gfx */
|
|
} /* namespace mozilla */
|
|
|
|
#endif /* SHARED_SURFACE_H_ */
|