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// Copyright (c) 2012 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/common/gpu/stream_texture_manager_android.h"
#include "base/bind.h"
#include "content/common/gpu/gpu_channel.h"
#include "content/common/gpu/gpu_messages.h"
#include "gpu/command_buffer/service/stream_texture.h"
#include "ui/gfx/size.h"
#include "ui/gl/android/surface_texture.h"
#include "ui/gl/gl_bindings.h"
namespace content {
StreamTextureManagerAndroid::StreamTextureAndroid::StreamTextureAndroid(
GpuChannel* channel, int service_id)
: surface_texture_(new gfx::SurfaceTexture(service_id)),
size_(0, 0),
has_updated_(false),
channel_(channel) {
memset(current_matrix_, 0, sizeof(current_matrix_));
}
StreamTextureManagerAndroid::StreamTextureAndroid::~StreamTextureAndroid() {
}
void StreamTextureManagerAndroid::StreamTextureAndroid::Update() {
GLint texture_id = 0;
glGetIntegerv(GL_TEXTURE_BINDING_EXTERNAL_OES, &texture_id);
surface_texture_->UpdateTexImage();
glBindTexture(GL_TEXTURE_EXTERNAL_OES, texture_id);
if (matrix_callback_.is_null())
return;
float mtx[16];
surface_texture_->GetTransformMatrix(mtx);
// Only query the matrix once we have bound a valid frame.
if (has_updated_ && memcmp(current_matrix_, mtx, sizeof(mtx)) != 0) {
memcpy(current_matrix_, mtx, sizeof(mtx));
GpuStreamTextureMsg_MatrixChanged_Params params;
memcpy(¶ms.m00, mtx, sizeof(mtx));
matrix_callback_.Run(params);
}
}
void StreamTextureManagerAndroid::StreamTextureAndroid::OnFrameAvailable(
int route_id) {
has_updated_ = true;
channel_->Send(new GpuStreamTextureMsg_FrameAvailable(route_id));
}
gfx::Size StreamTextureManagerAndroid::StreamTextureAndroid::GetSize() {
return size_;
}
StreamTextureManagerAndroid::StreamTextureManagerAndroid(
GpuChannel* channel)
: channel_(channel) {
}
StreamTextureManagerAndroid::~StreamTextureManagerAndroid() {
DCHECK(textures_.size() == textures_from_service_id_.size());
if (!textures_.IsEmpty())
LOG(WARNING) << "Undestroyed surface textures while closing GPU channel.";
}
GLuint StreamTextureManagerAndroid::CreateStreamTexture(uint32 service_id,
uint32 client_id) {
// service_id: the actual GL texture name
// client_id: texture name given to the client in the renderer (unused here)
// The return value here is what glCreateStreamTextureCHROMIUM() will return
// to identify the stream (i.e. surface texture).
StreamTextureAndroid* texture = new StreamTextureAndroid(
channel_, service_id);
textures_from_service_id_.AddWithID(texture, service_id);
return textures_.Add(texture);
}
void StreamTextureManagerAndroid::DestroyStreamTexture(uint32 service_id) {
gpu::StreamTexture* texture = textures_from_service_id_.Lookup(service_id);
if (texture) {
textures_from_service_id_.Remove(service_id);
for (TextureMap::Iterator<StreamTextureAndroid> it(&textures_);
!it.IsAtEnd(); it.Advance()) {
if (it.GetCurrentValue() == texture) {
textures_.Remove(it.GetCurrentKey());
break;
}
}
}
}
gpu::StreamTexture* StreamTextureManagerAndroid::LookupStreamTexture(
uint32 service_id) {
return textures_from_service_id_.Lookup(service_id);
}
void StreamTextureManagerAndroid::SendMatrixChanged(
int route_id,
const GpuStreamTextureMsg_MatrixChanged_Params& params) {
channel_->Send(new GpuStreamTextureMsg_MatrixChanged(route_id, params));
}
void StreamTextureManagerAndroid::RegisterStreamTextureProxy(
int32 stream_id, int32 route_id) {
StreamTextureAndroid* stream_texture = textures_.Lookup(stream_id);
if (stream_texture) {
// TODO(sievers): Post from binder thread to IO thread directly.
base::Closure frame_cb = base::Bind(
&StreamTextureAndroid::OnFrameAvailable,
stream_texture->AsWeakPtr(),
route_id);
StreamTextureAndroid::MatrixChangedCB matrix_cb = base::Bind(
&StreamTextureManagerAndroid::SendMatrixChanged,
base::Unretained(this),
route_id);
stream_texture->set_matrix_changed_callback(matrix_cb);
stream_texture->surface_texture()->SetFrameAvailableCallback(
frame_cb);
}
}
void StreamTextureManagerAndroid::EstablishStreamTexture(
int32 stream_id, int32 primary_id, int32 secondary_id) {
StreamTextureAndroid* stream_texture = textures_.Lookup(stream_id);
base::ProcessHandle process = channel_->renderer_pid();
if (stream_texture) {
SurfaceTexturePeer::GetInstance()->EstablishSurfaceTexturePeer(
process,
stream_texture->surface_texture(),
primary_id,
secondary_id);
}
}
void StreamTextureManagerAndroid::SetStreamTextureSize(
int32 stream_id, const gfx::Size& size) {
StreamTextureAndroid* stream_texture = textures_.Lookup(stream_id);
if (stream_texture)
stream_texture->SetSize(size);
}
} // namespace content
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