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// 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.
#include "content/browser/compositor/reflector_texture.h"
#include "content/browser/compositor/owned_mailbox.h"
#include "content/common/gpu/client/context_provider_command_buffer.h"
#include "content/common/gpu/client/gl_helper.h"
#include "gpu/command_buffer/client/context_support.h"
#include "gpu/command_buffer/client/gles2_interface.h"
namespace content {
ReflectorTexture::ReflectorTexture(cc::ContextProvider* context_provider)
: texture_id_(0) {
GLHelper* shared_helper =
ImageTransportFactory::GetInstance()->GetGLHelper();
mailbox_ = new OwnedMailbox(shared_helper);
gpu::gles2::GLES2Interface* gl = context_provider->ContextGL();
gl_helper_.reset(new GLHelper(gl, context_provider->ContextSupport()));
texture_id_ = gl_helper_->ConsumeMailboxToTexture(mailbox_->mailbox(),
mailbox_->sync_token());
}
ReflectorTexture::~ReflectorTexture() {
gl_helper_->DeleteTexture(texture_id_);
}
void ReflectorTexture::CopyTextureFullImage(const gfx::Size& size) {
gl_helper_->CopyTextureFullImage(texture_id_, size);
// Insert a barrier to make the copy show up in the mirroring compositor's
// mailbox. Since the the compositor contexts and the
// ImageTransportFactory's
// GLHelper are all on the same GPU channel, this is sufficient instead of
// plumbing through a sync point.
gl_helper_->InsertOrderingBarrier();
}
void ReflectorTexture::CopyTextureSubImage(const gfx::Rect& rect) {
gl_helper_->CopyTextureSubImage(texture_id_, rect);
// Insert a barrier for the same reason above.
gl_helper_->InsertOrderingBarrier();
}
} // namespace content
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