1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/layers/opengl/TextureClientOGL.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,144 @@
1.4 +/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
1.5 + * This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +#include "GLContext.h" // for GLContext, etc
1.10 +#include "SurfaceStream.h"
1.11 +#include "mozilla/Assertions.h" // for MOZ_ASSERT, etc
1.12 +#include "mozilla/layers/ISurfaceAllocator.h"
1.13 +#include "mozilla/layers/TextureClientOGL.h"
1.14 +#include "nsSize.h" // for nsIntSize
1.15 +
1.16 +using namespace mozilla::gl;
1.17 +
1.18 +namespace mozilla {
1.19 +namespace layers {
1.20 +
1.21 +class CompositableForwarder;
1.22 +
1.23 +SharedTextureClientOGL::SharedTextureClientOGL(TextureFlags aFlags)
1.24 + : TextureClient(aFlags)
1.25 + , mHandle(0)
1.26 + , mInverted(false)
1.27 +{
1.28 + // SharedTextureClient is always owned externally.
1.29 + mFlags |= TEXTURE_DEALLOCATE_CLIENT;
1.30 +}
1.31 +
1.32 +SharedTextureClientOGL::~SharedTextureClientOGL()
1.33 +{
1.34 + // the shared data is owned externally.
1.35 +}
1.36 +
1.37 +
1.38 +bool
1.39 +SharedTextureClientOGL::ToSurfaceDescriptor(SurfaceDescriptor& aOutDescriptor)
1.40 +{
1.41 + MOZ_ASSERT(IsValid());
1.42 + if (!IsAllocated()) {
1.43 + return false;
1.44 + }
1.45 + aOutDescriptor = SharedTextureDescriptor(mShareType, mHandle, mSize, mInverted);
1.46 + return true;
1.47 +}
1.48 +
1.49 +void
1.50 +SharedTextureClientOGL::InitWith(gl::SharedTextureHandle aHandle,
1.51 + gfx::IntSize aSize,
1.52 + gl::SharedTextureShareType aShareType,
1.53 + bool aInverted)
1.54 +{
1.55 + MOZ_ASSERT(IsValid());
1.56 + MOZ_ASSERT(!IsAllocated());
1.57 + mHandle = aHandle;
1.58 + mSize = aSize;
1.59 + mShareType = aShareType;
1.60 + mInverted = aInverted;
1.61 + if (mInverted) {
1.62 + AddFlags(TEXTURE_NEEDS_Y_FLIP);
1.63 + }
1.64 +}
1.65 +
1.66 +bool
1.67 +SharedTextureClientOGL::Lock(OpenMode mode)
1.68 +{
1.69 + MOZ_ASSERT(!mIsLocked);
1.70 + if (!IsValid() || !IsAllocated()) {
1.71 + return false;
1.72 + }
1.73 + mIsLocked = true;
1.74 + return true;
1.75 +}
1.76 +
1.77 +void
1.78 +SharedTextureClientOGL::Unlock()
1.79 +{
1.80 + MOZ_ASSERT(mIsLocked);
1.81 + mIsLocked = false;
1.82 +}
1.83 +
1.84 +bool
1.85 +SharedTextureClientOGL::IsAllocated() const
1.86 +{
1.87 + return mHandle != 0;
1.88 +}
1.89 +
1.90 +StreamTextureClientOGL::StreamTextureClientOGL(TextureFlags aFlags)
1.91 + : TextureClient(aFlags)
1.92 + , mIsLocked(false)
1.93 +{
1.94 +}
1.95 +
1.96 +StreamTextureClientOGL::~StreamTextureClientOGL()
1.97 +{
1.98 + // the data is owned externally.
1.99 +}
1.100 +
1.101 +bool
1.102 +StreamTextureClientOGL::Lock(OpenMode mode)
1.103 +{
1.104 + MOZ_ASSERT(!mIsLocked);
1.105 + if (!IsValid() || !IsAllocated()) {
1.106 + return false;
1.107 + }
1.108 + mIsLocked = true;
1.109 + return true;
1.110 +}
1.111 +
1.112 +void
1.113 +StreamTextureClientOGL::Unlock()
1.114 +{
1.115 + MOZ_ASSERT(mIsLocked);
1.116 + mIsLocked = false;
1.117 +}
1.118 +
1.119 +bool
1.120 +StreamTextureClientOGL::ToSurfaceDescriptor(SurfaceDescriptor& aOutDescriptor)
1.121 +{
1.122 + if (!IsAllocated()) {
1.123 + return false;
1.124 + }
1.125 +
1.126 + gfx::SurfaceStreamHandle handle = mStream->GetShareHandle();
1.127 + aOutDescriptor = SurfaceStreamDescriptor(handle, false);
1.128 + return true;
1.129 +}
1.130 +
1.131 +void
1.132 +StreamTextureClientOGL::InitWith(gfx::SurfaceStream* aStream)
1.133 +{
1.134 + MOZ_ASSERT(!IsAllocated());
1.135 + mStream = aStream;
1.136 + mGL = mStream->GLContext();
1.137 +}
1.138 +
1.139 +bool
1.140 +StreamTextureClientOGL::IsAllocated() const
1.141 +{
1.142 + return mStream != 0;
1.143 +}
1.144 +
1.145 +
1.146 +} // namespace
1.147 +} // namespace
