replicant-frameworks_native/libs/gui/SurfaceTextureClient.cpp

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/*
* Copyright (C) 2010 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "SurfaceTextureClient"
//#define LOG_NDEBUG 0
#include <gui/SurfaceTextureClient.h>
#include <utils/Log.h>
namespace android {
SurfaceTextureClient::SurfaceTextureClient(
const sp<ISurfaceTexture>& surfaceTexture):
mSurfaceTexture(surfaceTexture), mAllocator(0), mReqWidth(1),
mReqHeight(1), mReqFormat(DEFAULT_FORMAT), mReqUsage(0), mMutex() {
// Initialize the ANativeWindow function pointers.
ANativeWindow::setSwapInterval = setSwapInterval;
ANativeWindow::dequeueBuffer = dequeueBuffer;
ANativeWindow::cancelBuffer = cancelBuffer;
ANativeWindow::lockBuffer = lockBuffer;
ANativeWindow::queueBuffer = queueBuffer;
ANativeWindow::query = query;
ANativeWindow::perform = perform;
// Get a reference to the allocator.
mAllocator = mSurfaceTexture->getAllocator();
}
sp<ISurfaceTexture> SurfaceTextureClient::getISurfaceTexture() const {
return mSurfaceTexture;
}
int SurfaceTextureClient::setSwapInterval(ANativeWindow* window, int interval) {
SurfaceTextureClient* c = getSelf(window);
return c->setSwapInterval(interval);
}
int SurfaceTextureClient::dequeueBuffer(ANativeWindow* window,
android_native_buffer_t** buffer) {
SurfaceTextureClient* c = getSelf(window);
return c->dequeueBuffer(buffer);
}
int SurfaceTextureClient::cancelBuffer(ANativeWindow* window,
android_native_buffer_t* buffer) {
SurfaceTextureClient* c = getSelf(window);
return c->cancelBuffer(buffer);
}
int SurfaceTextureClient::lockBuffer(ANativeWindow* window,
android_native_buffer_t* buffer) {
SurfaceTextureClient* c = getSelf(window);
return c->lockBuffer(buffer);
}
int SurfaceTextureClient::queueBuffer(ANativeWindow* window,
android_native_buffer_t* buffer) {
SurfaceTextureClient* c = getSelf(window);
return c->queueBuffer(buffer);
}
int SurfaceTextureClient::query(ANativeWindow* window, int what, int* value) {
SurfaceTextureClient* c = getSelf(window);
return c->query(what, value);
}
int SurfaceTextureClient::perform(ANativeWindow* window, int operation, ...) {
va_list args;
va_start(args, operation);
SurfaceTextureClient* c = getSelf(window);
return c->perform(operation, args);
}
int SurfaceTextureClient::setSwapInterval(int interval) {
return INVALID_OPERATION;
}
int SurfaceTextureClient::dequeueBuffer(android_native_buffer_t** buffer) {
LOGV("SurfaceTextureClient::dequeueBuffer");
Mutex::Autolock lock(mMutex);
int buf = -1;
status_t err = mSurfaceTexture->dequeueBuffer(&buf);
if (err < 0) {
LOGV("dequeueBuffer: ISurfaceTexture::dequeueBuffer failed: %d", err);
return err;
}
sp<GraphicBuffer>& gbuf(mSlots[buf]);
if (gbuf == 0 || gbuf->getWidth() != mReqWidth ||
gbuf->getHeight() != mReqHeight ||
uint32_t(gbuf->getPixelFormat()) != mReqFormat ||
(gbuf->getUsage() & mReqUsage) != mReqUsage) {
gbuf = mSurfaceTexture->requestBuffer(buf, mReqWidth, mReqHeight,
mReqFormat, mReqUsage);
if (gbuf == 0) {
LOGE("dequeueBuffer: ISurfaceTexture::requestBuffer failed");
return NO_MEMORY;
}
}
*buffer = gbuf.get();
return OK;
}
int SurfaceTextureClient::cancelBuffer(android_native_buffer_t* buffer) {
LOGV("SurfaceTextureClient::cancelBuffer");
Mutex::Autolock lock(mMutex);
for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
if (mSlots[i]->handle == buffer->handle) {
mSurfaceTexture->cancelBuffer(i);
return OK;
}
}
return BAD_VALUE;
}
int SurfaceTextureClient::lockBuffer(android_native_buffer_t* buffer) {
LOGV("SurfaceTextureClient::lockBuffer");
Mutex::Autolock lock(mMutex);
return OK;
}
int SurfaceTextureClient::queueBuffer(android_native_buffer_t* buffer) {
LOGV("SurfaceTextureClient::queueBuffer");
Mutex::Autolock lock(mMutex);
for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
if (mSlots[i]->handle == buffer->handle) {
return mSurfaceTexture->queueBuffer(i);
}
}
LOGE("queueBuffer: unknown buffer queued");
return BAD_VALUE;
}
int SurfaceTextureClient::query(int what, int* value) {
LOGV("SurfaceTextureClient::query");
Mutex::Autolock lock(mMutex);
switch (what) {
case NATIVE_WINDOW_WIDTH:
case NATIVE_WINDOW_HEIGHT:
// XXX: How should SurfaceTexture behave if setBuffersGeometry didn't
// override the size?
*value = 0;
return NO_ERROR;
case NATIVE_WINDOW_FORMAT:
*value = DEFAULT_FORMAT;
return NO_ERROR;
case NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS:
*value = MIN_UNDEQUEUED_BUFFERS;
return NO_ERROR;
case NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER:
// SurfaceTextureClient currently never queues frames to SurfaceFlinger.
*value = 0;
return NO_ERROR;
case NATIVE_WINDOW_CONCRETE_TYPE:
*value = NATIVE_WINDOW_SURFACE_TEXTURE_CLIENT;
return NO_ERROR;
}
return BAD_VALUE;
}
int SurfaceTextureClient::perform(int operation, va_list args)
{
int res = NO_ERROR;
switch (operation) {
case NATIVE_WINDOW_CONNECT:
res = dispatchConnect(args);
break;
case NATIVE_WINDOW_DISCONNECT:
res = dispatchDisconnect(args);
break;
case NATIVE_WINDOW_SET_USAGE:
res = dispatchSetUsage(args);
break;
case NATIVE_WINDOW_SET_CROP:
res = dispatchSetCrop(args);
break;
case NATIVE_WINDOW_SET_BUFFER_COUNT:
res = dispatchSetBufferCount(args);
break;
case NATIVE_WINDOW_SET_BUFFERS_GEOMETRY:
res = dispatchSetBuffersGeometry(args);
break;
case NATIVE_WINDOW_SET_BUFFERS_TRANSFORM:
res = dispatchSetBuffersTransform(args);
break;
default:
res = NAME_NOT_FOUND;
break;
}
return res;
}
int SurfaceTextureClient::dispatchConnect(va_list args) {
int api = va_arg(args, int);
return connect(api);
}
int SurfaceTextureClient::dispatchDisconnect(va_list args) {
int api = va_arg(args, int);
return disconnect(api);
}
int SurfaceTextureClient::dispatchSetUsage(va_list args) {
int usage = va_arg(args, int);
return setUsage(usage);
}
int SurfaceTextureClient::dispatchSetCrop(va_list args) {
android_native_rect_t const* rect = va_arg(args, android_native_rect_t*);
return setCrop(reinterpret_cast<Rect const*>(rect));
}
int SurfaceTextureClient::dispatchSetBufferCount(va_list args) {
size_t bufferCount = va_arg(args, size_t);
return setBufferCount(bufferCount);
}
int SurfaceTextureClient::dispatchSetBuffersGeometry(va_list args) {
int w = va_arg(args, int);
int h = va_arg(args, int);
int f = va_arg(args, int);
return setBuffersGeometry(w, h, f);
}
int SurfaceTextureClient::dispatchSetBuffersTransform(va_list args) {
int transform = va_arg(args, int);
return setBuffersTransform(transform);
}
int SurfaceTextureClient::connect(int api) {
LOGV("SurfaceTextureClient::connect");
// XXX: Implement this!
return INVALID_OPERATION;
}
int SurfaceTextureClient::disconnect(int api) {
LOGV("SurfaceTextureClient::disconnect");
// XXX: Implement this!
return INVALID_OPERATION;
}
int SurfaceTextureClient::setUsage(uint32_t reqUsage)
{
LOGV("SurfaceTextureClient::setUsage");
Mutex::Autolock lock(mMutex);
mReqUsage = reqUsage;
return OK;
}
int SurfaceTextureClient::setCrop(Rect const* rect)
{
LOGV("SurfaceTextureClient::setCrop");
Mutex::Autolock lock(mMutex);
Rect realRect;
if (rect == NULL || rect->isEmpty()) {
realRect = Rect(0, 0);
} else {
realRect = *rect;
}
status_t err = mSurfaceTexture->setCrop(*rect);
LOGE_IF(err, "ISurfaceTexture::setCrop(...) returned %s", strerror(-err));
return err;
}
int SurfaceTextureClient::setBufferCount(int bufferCount)
{
LOGV("SurfaceTextureClient::setBufferCount");
Mutex::Autolock lock(mMutex);
status_t err = mSurfaceTexture->setBufferCount(bufferCount);
LOGE_IF(err, "ISurfaceTexture::setBufferCount(%d) returned %s",
bufferCount, strerror(-err));
if (err == NO_ERROR) {
freeAllBuffers();
}
return err;
}
int SurfaceTextureClient::setBuffersGeometry(int w, int h, int format)
{
LOGV("SurfaceTextureClient::setBuffersGeometry");
Mutex::Autolock lock(mMutex);
if (w<0 || h<0 || format<0)
return BAD_VALUE;
if ((w && !h) || (!w && h))
return BAD_VALUE;
mReqWidth = w;
mReqHeight = h;
mReqFormat = format;
status_t err = mSurfaceTexture->setCrop(Rect(0, 0));
LOGE_IF(err, "ISurfaceTexture::setCrop(...) returned %s", strerror(-err));
return err;
}
int SurfaceTextureClient::setBuffersTransform(int transform)
{
LOGV("SurfaceTextureClient::setBuffersTransform");
Mutex::Autolock lock(mMutex);
status_t err = mSurfaceTexture->setTransform(transform);
return err;
}
void SurfaceTextureClient::freeAllBuffers() {
for (int i = 0; i < NUM_BUFFER_SLOTS; i++) {
mSlots[i] = 0;
}
}
}; // namespace android