/*
* Hook called by EGL to acquire a buffer. This call may block if no
* buffers are available.
*
* The window holds a reference to the buffer between dequeueBuffer and
* either queueBuffer or cancelBuffer, so clients only need their own
* reference if they might use the buffer after queueing or canceling it.
* Holding a reference to a buffer after queueing or canceling it is only
* allowed if a specific buffer count has been set.
*
* The libsync fence file descriptor returned in the int pointed to by the
* fenceFd argument will refer to the fence that must signal before the
* dequeued buffer may be written to. A value of -1 indicates that the
* caller may access the buffer immediately without waiting on a fence. If
* a valid file descriptor is returned (i.e. any value except -1) then the
* caller is responsible for closing the file descriptor.
*
* Returns 0 on success or -errno on error.
*/
int HWComposerNativeWindow::dequeueBuffer(BaseNativeWindowBuffer** buffer, int *fenceFd)
{
HYBRIS_TRACE_BEGIN("hwcomposer-platform", "dequeueBuffer", "");
pthread_mutex_lock(&m_mutex);
// Allocate buffers if the list is empty, typically on the first call
if (m_bufList.empty())
allocateBuffers();
assert(!m_bufList.empty());
assert(m_nextBuffer < m_bufList.size());
// Grabe the next available buffer in the list and assign m_nextBuffer to
// the next one.
HWComposerNativeWindowBuffer *b = m_bufList.at(m_nextBuffer);
TRACE("idx=%d, buffer=%p, fence=%d", m_nextBuffer, b, b->fenceFd);
*buffer = b;
m_nextBuffer++;
if (m_nextBuffer >= m_bufList.size())
m_nextBuffer = 0;
// assign the buffer's fence to fenceFd and close/reset our fd.
int fence = b->fenceFd;
if (fenceFd)
*fenceFd = dup(fence);
if (fence != -1) {
close(b->fenceFd);
b->fenceFd = -1;
}
pthread_mutex_unlock(&m_mutex);
HYBRIS_TRACE_END("hwcomposer-platform", "dequeueBuffer", "");
return 0;
}
void WaylandNativeWindow::frame() {
HYBRIS_TRACE_BEGIN("wayland-platform", "frame_event", "");
this->frame_callback = NULL;
HYBRIS_TRACE_END("wayland-platform", "frame_event", "");
}
int WaylandNativeWindow::cancelBuffer(BaseNativeWindowBuffer* buffer, int fenceFd){
std::list<WaylandNativeWindowBuffer *>::iterator it;
WaylandNativeWindowBuffer *wnb = (WaylandNativeWindowBuffer*) buffer;
lock();
HYBRIS_TRACE_BEGIN("wayland-platform", "cancelBuffer", "-%p", wnb);
/* Check first that it really is our buffer */
for (it = m_bufList.begin(); it != m_bufList.end(); it++)
{
if ((*it) == wnb)
break;
}
assert(it != m_bufList.end());
wnb->busy = 0;
++m_freeBufs;
HYBRIS_TRACE_COUNTER("wayland-platform", "m_freeBufs", "%i", m_freeBufs);
for (it = m_bufList.begin(); it != m_bufList.end(); it++)
{
(*it)->youngest = 0;
}
wnb->youngest = 1;
pthread_cond_signal(&cond);
HYBRIS_TRACE_END("wayland-platform", "cancelBuffer", "-%p", wnb);
unlock();
return 0;
}
extern "C" void
eglplatformcommon_passthroughImageKHR(EGLContext *ctx, EGLenum *target, EGLClientBuffer *buffer, const EGLint **attrib_list)
{
#ifdef WANT_WAYLAND
static int debugenvchecked = 0;
if (*target == EGL_WAYLAND_BUFFER_WL)
{
server_wlegl_buffer *buf = server_wlegl_buffer_from((struct wl_buffer *)*buffer);
HYBRIS_TRACE_BEGIN("eglplatformcommon", "Wayland_eglImageKHR", "-resource@%i", ((struct wl_buffer *)*buffer)->resource.object.id);
HYBRIS_TRACE_END("eglplatformcommon", "Wayland_eglImageKHR", "-resource@%i", ((struct wl_buffer *)*buffer)->resource.object.id);
if (debugenvchecked == 0)
{
if (getenv("HYBRIS_WAYLAND_KHR_DUMP_BUFFERS") != NULL)
debugenvchecked = 2;
else
debugenvchecked = 1;
} else if (debugenvchecked == 2)
{
hybris_dump_buffer_to_file((ANativeWindowBuffer *) buf->buf);
}
*buffer = (EGLClientBuffer) (ANativeWindowBuffer *) buf->buf;
*target = EGL_NATIVE_BUFFER_ANDROID;
*ctx = EGL_NO_CONTEXT;
*attrib_list = NULL;
}
#endif
}
WaylandNativeWindow::WaylandNativeWindow(struct wl_egl_window *window, struct wl_display *display, const gralloc_module_t* gralloc, alloc_device_t* alloc_device)
{
int wayland_ok;
HYBRIS_TRACE_BEGIN("wayland-platform", "create_window", "");
this->m_window = window;
this->m_window->nativewindow = (void *) this;
this->m_display = display;
this->m_width = window->width;
this->m_height = window->height;
this->m_defaultWidth = window->width;
this->m_defaultHeight = window->height;
this->m_window->resize_callback = resize_callback;
this->m_format = 1;
this->wl_queue = wl_display_create_queue(display);
this->frame_callback = NULL;
this->registry = wl_display_get_registry(display);
wl_proxy_set_queue((struct wl_proxy *) this->registry,
this->wl_queue);
wl_registry_add_listener(this->registry, ®istry_listener, this);
wayland_ok = wayland_roundtrip(this);
assert(wayland_ok >= 0);
assert(this->m_android_wlegl != NULL);
this->m_gralloc = gralloc;
this->m_alloc = alloc_device;
m_usage=GRALLOC_USAGE_HW_RENDER | GRALLOC_USAGE_HW_TEXTURE;
pthread_mutex_init(&mutex, NULL);
pthread_cond_init(&cond, NULL);
m_freeBufs = 0;
setBufferCount(3);
HYBRIS_TRACE_END("wayland-platform", "create_window", "");
}
/*
* Hook called by EGL when modifications to the render buffer are done.
* This unlocks and post the buffer.
*
* The window holds a reference to the buffer between dequeueBuffer and
* either queueBuffer or cancelBuffer, so clients only need their own
* reference if they might use the buffer after queueing or canceling it.
* Holding a reference to a buffer after queueing or canceling it is only
* allowed if a specific buffer count has been set.
*
* The fenceFd argument specifies a libsync fence file descriptor for a
* fence that must signal before the buffer can be accessed. If the buffer
* can be accessed immediately then a value of -1 should be used. The
* caller must not use the file descriptor after it is passed to
* queueBuffer, and the ANativeWindow implementation is responsible for
* closing it.
*
* Returns 0 on success or -errno on error.
*/
int HWComposerNativeWindow::queueBuffer(BaseNativeWindowBuffer* buffer, int fenceFd)
{
TRACE("%lu %d", pthread_self(), fenceFd);
HWComposerNativeWindowBuffer* fbnb = (HWComposerNativeWindowBuffer*) buffer;
HYBRIS_TRACE_BEGIN("hwcomposer-platform", "queueBuffer", "-%p", fbnb);
fbnb->fenceFd = fenceFd;
pthread_mutex_lock(&_mutex);
/* Front buffer hasn't yet been picked up for posting */
while (m_frontBuf && m_frontBuf->busy >= 2)
{
pthread_cond_wait(&_cond, &_mutex);
}
assert(fbnb->busy==1);
fbnb->busy = 2;
m_frontBuf = fbnb;
m_freeBufs++;
sync_wait(fenceFd, -1);
::close(fenceFd);
pthread_cond_signal(&_cond);
TRACE("%lu %p %p",pthread_self(), m_frontBuf, fbnb);
pthread_mutex_unlock(&_mutex);
HYBRIS_TRACE_END("hwcomposer-platform", "queueBuffer", "-%p", fbnb);
return 0;
}
void WaylandNativeWindow::releaseBuffer(struct wl_buffer *buffer)
{
lock();
std::list<WaylandNativeWindowBuffer *>::iterator it = posted.begin();
for (; it != posted.end(); it++)
{
if ((*it)->wlbuffer == buffer)
break;
}
if (it != posted.end())
{
WaylandNativeWindowBuffer* pwnb = *it;
posted.erase(it);
TRACE("released posted buffer: %p", buffer);
pwnb->busy = 0;
pthread_cond_signal(&cond);
unlock();
return;
}
it = fronted.begin();
for (; it != fronted.end(); it++)
{
if ((*it)->wlbuffer == buffer)
break;
}
assert(it != fronted.end());
WaylandNativeWindowBuffer* wnb = *it;
fronted.erase(it);
HYBRIS_TRACE_COUNTER("wayland-platform", "fronted.size", "%i", fronted.size());
for (it = m_bufList.begin(); it != m_bufList.end(); it++)
{
if ((*it) == wnb)
break;
}
assert(it != m_bufList.end());
HYBRIS_TRACE_BEGIN("wayland-platform", "releaseBuffer", "-%p", wnb);
wnb->busy = 0;
++m_freeBufs;
HYBRIS_TRACE_COUNTER("wayland-platform", "m_freeBufs", "%i", m_freeBufs);
for (it = m_bufList.begin(); it != m_bufList.end(); it++)
{
(*it)->youngest = 0;
}
wnb->youngest = 1;
pthread_cond_signal(&cond);
HYBRIS_TRACE_END("wayland-platform", "releaseBuffer", "-%p", wnb);
unlock();
}
EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface surface)
{
EGLBoolean ret;
HYBRIS_TRACE_BEGIN("hybris-egl", "eglSwapBuffers", "");
ret = _my_eglSwapBuffersWithDamageEXT(dpy, surface, NULL, 0);
HYBRIS_TRACE_END("hybris-egl", "eglSwapBuffers", "");
return ret;
}
EGLBoolean eglSwapBuffers(EGLDisplay dpy, EGLSurface surface)
{
EGLBoolean ret;
HYBRIS_TRACE_BEGIN("hybris-egl", "eglSwapBuffers", "");
EGL_DLSYM(&_eglSwapBuffers, "eglSwapBuffers");
ret = (*_eglSwapBuffers)(dpy, surface);
HYBRIS_TRACE_END("hybris-egl", "eglSwapBuffers", "");
return ret;
}
EGLSurface eglCreateWindowSurface(EGLDisplay dpy, EGLConfig config,
EGLNativeWindowType win,
const EGLint *attrib_list)
{
EGL_DLSYM(&_eglCreateWindowSurface, "eglCreateWindowSurface");
HYBRIS_TRACE_BEGIN("hybris-egl", "eglCreateWindowSurface", "");
struct _EGLDisplay *display = hybris_egl_display_get_mapping(dpy);
win = ws_CreateWindow(win, display);
assert(((struct ANativeWindowBuffer *) win)->common.magic == ANDROID_NATIVE_WINDOW_MAGIC);
HYBRIS_TRACE_BEGIN("native-egl", "eglCreateWindowSurface", "");
EGLSurface result = (*_eglCreateWindowSurface)(dpy, config, win, attrib_list);
HYBRIS_TRACE_END("native-egl", "eglCreateWindowSurface", "");
egl_helper_push_mapping(result, win);
HYBRIS_TRACE_END("hybris-egl", "eglCreateWindowSurface", "");
return result;
}
/*
* Hook called by EGL when modifications to the render buffer are done.
* This unlocks and post the buffer.
*
* The window holds a reference to the buffer between dequeueBuffer and
* either queueBuffer or cancelBuffer, so clients only need their own
* reference if they might use the buffer after queueing or canceling it.
* Holding a reference to a buffer after queueing or canceling it is only
* allowed if a specific buffer count has been set.
*
* The fenceFd argument specifies a libsync fence file descriptor for a
* fence that must signal before the buffer can be accessed. If the buffer
* can be accessed immediately then a value of -1 should be used. The
* caller must not use the file descriptor after it is passed to
* queueBuffer, and the ANativeWindow implementation is responsible for
* closing it.
*
* Returns 0 on success or -errno on error.
*/
int FbDevNativeWindow::queueBuffer(BaseNativeWindowBuffer* buffer, int fenceFd)
{
FbDevNativeWindowBuffer* fbnb = (FbDevNativeWindowBuffer*) buffer;
HYBRIS_TRACE_BEGIN("fbdev-platform", "queueBuffer", "-%p", fbnb);
pthread_mutex_lock(&_mutex);
assert(fbnb->busy==1);
fbnb->busy = 2;
pthread_mutex_unlock(&_mutex);
HYBRIS_TRACE_BEGIN("fbdev-platform", "queueBuffer-post", "-%p", fbnb);
int rv = m_fbDev->post(m_fbDev, fbnb->handle);
if (rv!=0)
{
fprintf(stderr,"ERROR: fb->post(%s)\n",strerror(-rv));
}
HYBRIS_TRACE_END("fbdev-platform", "queueBuffer-post", "-%p", fbnb);
pthread_mutex_lock(&_mutex);
fbnb->busy=0;
m_frontBuf = fbnb;
m_freeBufs++;
TRACE("%lu %p %p",pthread_self(), m_frontBuf, fbnb);
pthread_cond_signal(&_cond);
pthread_mutex_unlock(&_mutex);
HYBRIS_TRACE_END("fbdev-platform", "queueBuffer", "-%p", fbnb);
return rv;
}
int WaylandNativeWindow::queueBuffer(BaseNativeWindowBuffer* buffer, int fenceFd)
{
WaylandNativeWindowBuffer *wnb = (WaylandNativeWindowBuffer*) buffer;
int ret = 0;
HYBRIS_TRACE_BEGIN("wayland-platform", "queueBuffer", "-%p", wnb);
lock();
if (debugenvchecked == 0)
{
if (getenv("HYBRIS_WAYLAND_DUMP_BUFFERS") != NULL)
debugenvchecked = 2;
else
debugenvchecked = 1;
}
if (debugenvchecked == 2)
{
HYBRIS_TRACE_BEGIN("wayland-platform", "queueBuffer_dumping_buffer", "-%p", wnb);
hybris_dump_buffer_to_file(wnb->getNativeBuffer());
HYBRIS_TRACE_END("wayland-platform", "queueBuffer_dumping_buffer", "-%p", wnb);
}
#if ANDROID_VERSION_MAJOR>=4 && ANDROID_VERSION_MINOR>=2
HYBRIS_TRACE_BEGIN("wayland-platform", "queueBuffer_waiting_for_fence", "-%p", wnb);
if (fenceFd >= 0)
{
sync_wait(fenceFd, -1);
close(fenceFd);
}
HYBRIS_TRACE_END("wayland-platform", "queueBuffer_waiting_for_fence", "-%p", wnb);
#endif
HYBRIS_TRACE_COUNTER("wayland-platform", "fronted.size", "%i", fronted.size());
HYBRIS_TRACE_END("wayland-platform", "queueBuffer", "-%p", wnb);
unlock();
return NO_ERROR;
}
EGLBoolean eglSwapInterval(EGLDisplay dpy, EGLint interval)
{
EGLBoolean ret;
EGLSurface surface;
EGLNativeWindowType win;
HYBRIS_TRACE_BEGIN("hybris-egl", "eglSwapInterval", "=%d", interval);
/* Some egl implementations don't pass through the setSwapInterval
* call. Since we may support various swap intervals internally, we'll
* call it anyway and then give the wrapped egl implementation a chance
* to chage it. */
EGL_DLSYM(&_eglGetCurrentSurface, "eglGetCurrentSurface");
surface = (*_eglGetCurrentSurface)(EGL_DRAW);
if (egl_helper_has_mapping(surface))
ws_setSwapInterval(dpy, egl_helper_get_mapping(surface), interval);
HYBRIS_TRACE_BEGIN("native-egl", "eglSwapInterval", "=%d", interval);
EGL_DLSYM(&_eglSwapInterval, "eglSwapInterval");
ret = (*_eglSwapInterval)(dpy, interval);
HYBRIS_TRACE_END("native-egl", "eglSwapInterval", "");
HYBRIS_TRACE_END("hybris-egl", "eglSwapInterval", "");
return ret;
}
WaylandNativeWindow::WaylandNativeWindow(struct wl_egl_window *window, struct wl_display *display, alloc_device_t* alloc_device)
: m_android_wlegl(NULL)
{
int wayland_ok;
HYBRIS_TRACE_BEGIN("wayland-platform", "create_window", "");
this->m_window = window;
this->m_window->nativewindow = (void *) this;
this->m_display = display;
this->m_width = window->width;
this->m_height = window->height;
this->m_defaultWidth = window->width;
this->m_defaultHeight = window->height;
this->m_window->resize_callback = resize_callback;
this->m_window->free_callback = free_callback;
this->m_format = 1;
this->frame_callback = NULL;
this->wl_queue = wl_display_create_queue(display);
this->registry = wl_display_get_registry(display);
this->m_android_wlegl = NULL;
wl_proxy_set_queue((struct wl_proxy *) this->registry,
this->wl_queue);
wl_registry_add_listener(this->registry, ®istry_listener, this);
const_cast<int&>(ANativeWindow::minSwapInterval) = 0;
const_cast<int&>(ANativeWindow::maxSwapInterval) = 1;
// This is the default as per the EGL documentation
this->m_swap_interval = 1;
wayland_ok = wayland_roundtrip(this);
assert(wayland_ok >= 0);
assert(this->m_android_wlegl != NULL);
this->m_alloc = alloc_device;
m_usage=GRALLOC_USAGE_HW_RENDER | GRALLOC_USAGE_HW_TEXTURE;
pthread_mutex_init(&mutex, NULL);
pthread_cond_init(&cond, NULL);
m_queueReads = 0;
m_freeBufs = 0;
m_damage_rects = NULL;
m_damage_n_rects = 0;
m_lastBuffer = 0;
setBufferCount(3);
HYBRIS_TRACE_END("wayland-platform", "create_window", "");
}
/*
* Hook called by EGL when modifications to the render buffer are done.
* This unlocks and post the buffer.
*
* The window holds a reference to the buffer between dequeueBuffer and
* either queueBuffer or cancelBuffer, so clients only need their own
* reference if they might use the buffer after queueing or canceling it.
* Holding a reference to a buffer after queueing or canceling it is only
* allowed if a specific buffer count has been set.
*
* The fenceFd argument specifies a libsync fence file descriptor for a
* fence that must signal before the buffer can be accessed. If the buffer
* can be accessed immediately then a value of -1 should be used. The
* caller must not use the file descriptor after it is passed to
* queueBuffer, and the ANativeWindow implementation is responsible for
* closing it.
*
* Returns 0 on success or -errno on error.
*/
int HWComposerNativeWindow::queueBuffer(BaseNativeWindowBuffer* buffer, int fenceFd)
{
HWComposerNativeWindowBuffer* b = (HWComposerNativeWindowBuffer*) buffer;
HYBRIS_TRACE_BEGIN("hwcomposer-platform", "queueBuffer", "-%p", b);
TRACE("%lu %p %d", pthread_self(), buffer, fenceFd);
pthread_mutex_lock(&m_mutex);
assert(b->fenceFd == -1); // We reset it in dequeue, so it better be -1 still..
b->fenceFd = fenceFd;
this->present(b);
pthread_mutex_unlock(&m_mutex);
TRACE("%lu %p %d", pthread_self(), b, b->fenceFd);
HYBRIS_TRACE_END("hwcomposer-platform", "queueBuffer", "-%p", b);
return 0;
}
// overloads from BaseNativeWindow
int WaylandNativeWindow::setSwapInterval(int interval) {
TRACE("interval:%i", interval);
if (interval < 0)
interval = 0;
if (interval > 1)
interval = 1;
HYBRIS_TRACE_BEGIN("wayland-platform", "swap_interval", "=%d", interval);
lock();
m_swap_interval = interval;
unlock();
HYBRIS_TRACE_END("wayland-platform", "swap_interval", "");
return 0;
}
EGLBoolean _my_eglSwapBuffersWithDamageEXT(EGLDisplay dpy, EGLSurface surface, EGLint *rects, EGLint n_rects)
{
EGLNativeWindowType win;
EGLBoolean ret;
HYBRIS_TRACE_BEGIN("hybris-egl", "eglSwapBuffersWithDamageEXT", "");
EGL_DLSYM(&_eglSwapBuffers, "eglSwapBuffers");
if (egl_helper_has_mapping(surface)) {
win = egl_helper_get_mapping(surface);
ws_prepareSwap(dpy, win, rects, n_rects);
ret = (*_eglSwapBuffers)(dpy, surface);
ws_finishSwap(dpy, win);
} else {
ret = (*_eglSwapBuffers)(dpy, surface);
}
HYBRIS_TRACE_END("hybris-egl", "eglSwapBuffersWithDamageEXT", "");
return ret;
}
int FbDevNativeWindow::lockBuffer(BaseNativeWindowBuffer* buffer)
{
FbDevNativeWindowBuffer* fbnb = (FbDevNativeWindowBuffer*)buffer;
HYBRIS_TRACE_BEGIN("fbdev-platform", "lockBuffer", "-%p", fbnb);
pthread_mutex_lock(&_mutex);
// wait that the buffer we're locking is not front anymore
while (m_frontBuf==fbnb)
{
TRACE("waiting %p %p", m_frontBuf, fbnb);
pthread_cond_wait(&_cond, &_mutex);
}
pthread_mutex_unlock(&_mutex);
HYBRIS_TRACE_END("fbdev-platform", "lockBuffer", "-%p", fbnb);
return NO_ERROR;
}
int WaylandNativeWindow::cancelBuffer(BaseNativeWindowBuffer* buffer, int fenceFd){
std::list<WaylandNativeWindowBuffer *>::iterator it;
WaylandNativeWindowBuffer *wnb = (WaylandNativeWindowBuffer*) buffer;
lock();
HYBRIS_TRACE_BEGIN("wayland-platform", "cancelBuffer", "-%p", wnb);
/* Check first that it really is our buffer */
for (it = m_bufList.begin(); it != m_bufList.end(); it++)
{
if ((*it) == wnb)
break;
}
assert(it != m_bufList.end());
wnb->busy = 0;
++m_freeBufs;
HYBRIS_TRACE_COUNTER("wayland-platform", "m_freeBufs", "%i", m_freeBufs);
for (it = m_bufList.begin(); it != m_bufList.end(); it++)
{
(*it)->youngest = 0;
}
wnb->youngest = 1;
if (m_queueReads != 0) {
// Some thread is waiting on wl_display_dispatch_queue(), possibly waiting for a wl_buffer.release
// event. Since we have now cancelled a buffer push an artificial event so that the dispatch returns
// and the thread can notice the cancelled buffer. This means there is a delay of one roundtrip,
// but I don't see other solution except having one dedicated thread for calling wl_display_dispatch_queue().
wl_callback_destroy(wl_display_sync(m_display));
}
HYBRIS_TRACE_END("wayland-platform", "cancelBuffer", "-%p", wnb);
unlock();
return 0;
}
WaylandNativeWindow::WaylandNativeWindow(struct wl_egl_window *window, struct wl_display *display, android_wlegl *wlegl, alloc_device_t* alloc_device, gralloc_module_t *gralloc)
: m_android_wlegl(wlegl)
{
int wayland_ok;
HYBRIS_TRACE_BEGIN("wayland-platform", "create_window", "");
this->m_window = window;
this->m_window->nativewindow = (void *) this;
this->m_display = display;
this->m_width = window->width;
this->m_height = window->height;
this->m_defaultWidth = window->width;
this->m_defaultHeight = window->height;
this->m_window->resize_callback = resize_callback;
this->m_window->free_callback = free_callback;
this->frame_callback = NULL;
this->wl_queue = wl_display_create_queue(display);
this->m_format = 1;
const_cast<int&>(ANativeWindow::minSwapInterval) = 0;
const_cast<int&>(ANativeWindow::maxSwapInterval) = 1;
// This is the default as per the EGL documentation
this->m_swap_interval = 1;
this->m_alloc = alloc_device;
m_gralloc = gralloc;
m_usage=GRALLOC_USAGE_HW_RENDER | GRALLOC_USAGE_HW_TEXTURE;
pthread_mutex_init(&mutex, NULL);
pthread_cond_init(&cond, NULL);
m_queueReads = 0;
m_freeBufs = 0;
m_damage_rects = NULL;
m_damage_n_rects = 0;
m_lastBuffer = 0;
setBufferCount(3);
HYBRIS_TRACE_END("wayland-platform", "create_window", "");
}
/*
* Hook called by EGL to acquire a buffer. This call may block if no
* buffers are available.
*
* The window holds a reference to the buffer between dequeueBuffer and
* either queueBuffer or cancelBuffer, so clients only need their own
* reference if they might use the buffer after queueing or canceling it.
* Holding a reference to a buffer after queueing or canceling it is only
* allowed if a specific buffer count has been set.
*
* The libsync fence file descriptor returned in the int pointed to by the
* fenceFd argument will refer to the fence that must signal before the
* dequeued buffer may be written to. A value of -1 indicates that the
* caller may access the buffer immediately without waiting on a fence. If
* a valid file descriptor is returned (i.e. any value except -1) then the
* caller is responsible for closing the file descriptor.
*
* Returns 0 on success or -errno on error.
*/
int FbDevNativeWindow::dequeueBuffer(BaseNativeWindowBuffer** buffer, int *fenceFd)
{
HYBRIS_TRACE_BEGIN("fbdev-platform", "dequeueBuffer", "");
FbDevNativeWindowBuffer* fbnb=NULL;
pthread_mutex_lock(&_mutex);
HYBRIS_TRACE_BEGIN("fbdev-platform", "dequeueBuffer-wait", "");
#if defined(DEBUG)
if (m_frontBuf)
TRACE("Status: Has front buf %p", m_frontBuf);
std::list<FbDevNativeWindowBuffer*>::iterator cit = m_bufList.begin();
for (; cit != m_bufList.end(); ++cit)
{
TRACE("Status: Buffer %p with busy %i\n", (*cit), (*cit)->busy);
}
#endif
while (m_freeBufs==0)
{
pthread_cond_wait(&_cond, &_mutex);
}
while (1)
{
std::list<FbDevNativeWindowBuffer*>::iterator it = m_bufList.begin();
for (; it != m_bufList.end(); ++it)
{
if (*it==m_frontBuf)
continue;
if ((*it)->busy==0)
{
TRACE("Found a free non-front buffer");
break;
}
}
if (it == m_bufList.end())
{
#if ANDROID_VERSION_MAJOR<=4 && ANDROID_VERSION_MINOR<2
/*
* This is acceptable in case you are on a stack that calls lock() before starting to render into buffer
* When you are using fences (>= 2) you'll be waiting on the fence to signal instead.
*
* This optimization allows eglSwapBuffers to return and you can begin to utilize the GPU for rendering.
* The actual lock() probably first comes at glFlush/eglSwapBuffers
*/
if (m_frontBuf && m_frontBuf->busy == 0)
{
TRACE("Used front buffer as buffer");
fbnb = m_frontBuf;
break;
}
#endif
// have to wait once again
pthread_cond_wait(&_cond, &_mutex);
continue;
}
fbnb = *it;
break;
}
HYBRIS_TRACE_END("fbdev-platform", "dequeueBuffer-wait", "");
assert(fbnb!=NULL);
fbnb->busy = 1;
m_freeBufs--;
*buffer = fbnb;
*fenceFd = -1;
TRACE("%lu DONE --> %p", pthread_self(), fbnb);
pthread_mutex_unlock(&_mutex);
HYBRIS_TRACE_END("fbdev-platform", "dequeueBuffer", "");
return 0;
}
/*
* Hook called by EGL to acquire a buffer. This call may block if no
* buffers are available.
*
* The window holds a reference to the buffer between dequeueBuffer and
* either queueBuffer or cancelBuffer, so clients only need their own
* reference if they might use the buffer after queueing or canceling it.
* Holding a reference to a buffer after queueing or canceling it is only
* allowed if a specific buffer count has been set.
*
* The libsync fence file descriptor returned in the int pointed to by the
* fenceFd argument will refer to the fence that must signal before the
* dequeued buffer may be written to. A value of -1 indicates that the
* caller may access the buffer immediately without waiting on a fence. If
* a valid file descriptor is returned (i.e. any value except -1) then the
* caller is responsible for closing the file descriptor.
*
* Returns 0 on success or -errno on error.
*/
int HWComposerNativeWindow::dequeueBuffer(BaseNativeWindowBuffer** buffer, int *fenceFd)
{
HYBRIS_TRACE_BEGIN("hwcomposer-platform", "dequeueBuffer", "");
HWComposerNativeWindowBuffer* fbnb=NULL;
pthread_mutex_lock(&_mutex);
HYBRIS_TRACE_BEGIN("hwcomposer-platform", "dequeueBuffer-wait", "");
#if defined(DEBUG)
if (m_frontBuf)
TRACE("Status: Has front buf %p", m_frontBuf);
std::list<HWComposerNativeWindowBuffer*>::iterator cit = m_bufList.begin();
for (; cit != m_bufList.end(); ++cit)
{
TRACE("Status: Buffer %p with busy %i\n", (*cit), (*cit)->busy);
}
#endif
while (m_freeBufs==0)
{
pthread_cond_wait(&_cond, &_mutex);
}
while (1)
{
std::list<HWComposerNativeWindowBuffer*>::iterator it = m_bufList.begin();
for (; it != m_bufList.end(); ++it)
{
if (*it==m_frontBuf)
continue;
if ((*it)->busy==0)
{
TRACE("Found a free non-front buffer");
break;
}
}
if (it == m_bufList.end())
{
// have to wait once again
pthread_cond_wait(&_cond, &_mutex);
continue;
}
fbnb = *it;
break;
}
HYBRIS_TRACE_END("hwcomposer-platform", "dequeueBuffer-wait", "");
assert(fbnb!=NULL);
fbnb->busy = 1;
m_freeBufs--;
*buffer = fbnb;
*fenceFd = -1;
TRACE("%lu DONE --> %p", pthread_self(), fbnb);
pthread_mutex_unlock(&_mutex);
HYBRIS_TRACE_END("hwcomposer-platform", "dequeueBuffer", "");
return 0;
}
int WaylandNativeWindow::lockBuffer(BaseNativeWindowBuffer* buffer){
WaylandNativeWindowBuffer *wnb = (WaylandNativeWindowBuffer*) buffer;
HYBRIS_TRACE_BEGIN("wayland-platform", "lockBuffer", "-%p", wnb);
HYBRIS_TRACE_END("wayland-platform", "lockBuffer", "-%p", wnb);
return NO_ERROR;
}
int WaylandNativeWindow::dequeueBuffer(BaseNativeWindowBuffer **buffer, int *fenceFd){
HYBRIS_TRACE_BEGIN("wayland-platform", "dequeueBuffer", "");
WaylandNativeWindowBuffer *wnb=NULL;
TRACE("%p", buffer);
lock();
HYBRIS_TRACE_BEGIN("wayland-platform", "dequeueBuffer_wait_for_buffer", "");
HYBRIS_TRACE_COUNTER("wayland-platform", "m_freeBufs", "%i", m_freeBufs);
while (m_freeBufs==0) {
HYBRIS_TRACE_COUNTER("wayland-platform", "m_freeBufs", "%i", m_freeBufs);
pthread_cond_wait(&cond,&mutex);
}
std::list<WaylandNativeWindowBuffer *>::iterator it = m_bufList.begin();
for (; it != m_bufList.end(); it++)
{
if ((*it)->busy)
continue;
if ((*it)->youngest == 1)
continue;
break;
}
if (it==m_bufList.end()) {
HYBRIS_TRACE_BEGIN("wayland-platform", "dequeueBuffer_worst_case_scenario", "");
HYBRIS_TRACE_END("wayland-platform", "dequeueBuffer_worst_case_scenario", "");
it = m_bufList.begin();
for (; it != m_bufList.end() && (*it)->busy; it++)
{}
}
if (it==m_bufList.end()) {
unlock();
HYBRIS_TRACE_BEGIN("wayland-platform", "dequeueBuffer_no_free_buffers", "");
HYBRIS_TRACE_END("wayland-platform", "dequeueBuffer_no_free_buffers", "");
TRACE("%p: no free buffers", buffer);
return NO_ERROR;
}
wnb = *it;
assert(wnb!=NULL);
HYBRIS_TRACE_END("wayland-platform", "dequeueBuffer_wait_for_buffer", "");
/* If the buffer doesn't match the window anymore, re-allocate */
if (wnb->width != m_window->width || wnb->height != m_window->height
|| wnb->format != m_format || wnb->usage != m_usage)
{
TRACE("wnb:%p,win:%p %i,%i %i,%i x%x,x%x x%x,x%x",
wnb,m_window,
wnb->width,m_window->width, wnb->height,m_window->height,
wnb->format,m_format, wnb->usage,m_usage);
destroyBuffer(wnb);
m_bufList.erase(it);
wnb = addBuffer();
}
wnb->busy = 1;
*buffer = wnb;
--m_freeBufs;
HYBRIS_TRACE_COUNTER("wayland-platform", "m_freeBufs", "%i", m_freeBufs);
HYBRIS_TRACE_BEGIN("wayland-platform", "dequeueBuffer_gotBuffer", "-%p", wnb);
HYBRIS_TRACE_END("wayland-platform", "dequeueBuffer_gotBuffer", "-%p", wnb);
HYBRIS_TRACE_END("wayland-platform", "dequeueBuffer_wait_for_buffer", "");
unlock();
return NO_ERROR;
}
int WaylandNativeWindow::queueBuffer(BaseNativeWindowBuffer* buffer, int fenceFd)
{
WaylandNativeWindowBuffer *wnb = (WaylandNativeWindowBuffer*) buffer;
int ret = 0;
HYBRIS_TRACE_BEGIN("wayland-platform", "queueBuffer", "-%p", wnb);
lock();
wnb->busy = 1;
unlock();
/* XXX locking/something is a bit fishy here */
HYBRIS_TRACE_BEGIN("wayland-platform", "queueBuffer_wait_for_frame_callback", "-%p", wnb);
while (this->frame_callback && ret != -1) {
ret = wl_display_dispatch_queue(m_display, this->wl_queue);
}
if (ret < 0) {
TRACE("wl_display_dispatch_queue returned an error");
HYBRIS_TRACE_END("wayland-platform", "queueBuffer_wait_for_frame_callback", "-%p", wnb);
check_fatal_error(m_display);
return ret;
}
HYBRIS_TRACE_END("wayland-platform", "queueBuffer_wait_for_frame_callback", "-%p", wnb);
lock();
if (debugenvchecked == 0)
{
if (getenv("HYBRIS_WAYLAND_DUMP_BUFFERS") != NULL)
debugenvchecked = 2;
else
debugenvchecked = 1;
}
if (debugenvchecked == 2)
{
HYBRIS_TRACE_BEGIN("wayland-platform", "queueBuffer_dumping_buffer", "-%p", wnb);
hybris_dump_buffer_to_file(wnb->getNativeBuffer());
HYBRIS_TRACE_END("wayland-platform", "queueBuffer_dumping_buffer", "-%p", wnb);
}
#if ANDROID_VERSION_MAJOR>=4 && ANDROID_VERSION_MINOR>=2
HYBRIS_TRACE_BEGIN("wayland-platform", "queueBuffer_waiting_for_fence", "-%p", wnb);
sync_wait(fenceFd, -1);
close(fenceFd);
HYBRIS_TRACE_END("wayland-platform", "queueBuffer_waiting_for_fence", "-%p", wnb);
#endif
this->frame_callback = wl_surface_frame(m_window->surface);
wl_callback_add_listener(this->frame_callback, &frame_listener, this);
wl_proxy_set_queue((struct wl_proxy *) this->frame_callback, this->wl_queue);
if (wnb->wlbuffer == NULL)
{
wnb->wlbuffer_from_native_handle(m_android_wlegl);
TRACE("%p add listener with %p inside", wnb, wnb->wlbuffer);
wl_buffer_add_listener(wnb->wlbuffer, &wl_buffer_listener, this);
wl_proxy_set_queue((struct wl_proxy *) wnb->wlbuffer, this->wl_queue);
}
TRACE("%p DAMAGE AREA: %dx%d", wnb, wnb->width, wnb->height);
HYBRIS_TRACE_BEGIN("wayland-platform", "queueBuffer_attachdamagecommit", "-resource@%i", wl_proxy_get_id((struct wl_proxy *) wnb->wlbuffer));
wl_surface_attach(m_window->surface, wnb->wlbuffer, 0, 0);
wl_surface_damage(m_window->surface, 0, 0, wnb->width, wnb->height);
wl_surface_commit(m_window->surface);
wl_display_flush(m_display);
HYBRIS_TRACE_END("wayland-platform", "queueBuffer_attachdamagecommit", "-resource@%i", wl_proxy_get_id((struct wl_proxy *) wnb->wlbuffer));
//--m_freeBufs;
//pthread_cond_signal(&cond);
fronted.push_back(wnb);
HYBRIS_TRACE_COUNTER("wayland-platform", "fronted.size", "%i", fronted.size());
if (fronted.size() == m_bufList.size())
{
HYBRIS_TRACE_BEGIN("wayland-platform", "queueBuffer_wait_for_nonfronted_buffer", "-%p", wnb);
/* We have fronted all our buffers, let's wait for one of them to be free */
do {
unlock();
ret = wl_display_dispatch_queue(m_display, this->wl_queue);
lock();
if (ret == -1)
{
check_fatal_error(m_display);
break;
}
HYBRIS_TRACE_COUNTER("wayland-platform", "fronted.size", "%i", fronted.size());
if (fronted.size() != m_bufList.size())
break;
} while (1);
HYBRIS_TRACE_END("wayland-platform", "queueBuffer_wait_for_nonfronted_buffer", "-%p", wnb);
}
HYBRIS_TRACE_END("wayland-platform", "queueBuffer", "-%p", wnb);
unlock();
return NO_ERROR;
}
