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replicant-frameworks_native/libs/gui/GLConsumer.cpp
Dan Stoza e64a79cd85 Fix PTS handling for buffer replacement 
This changes the way that SurfaceFlinger's shadow buffer management
works such that instead of tracking the size of the shadow queue in the
BufferQueue, SF tracks the last frame number it has seen, and passes
that into the acquireBuffer call. BufferQueueConsumer then ensures that
it never returns a buffer newer than that frame number, even if that
means that it must return PRESENT_LATER for an otherwise valid buffer.

Change-Id: I3fcb45f683ed660c3f18a8b85ae1f8a962ba6f0e
(cherry picked from commit a4650a50a0)
2015-05-13 09:43:35 -07:00

1170 lines
39 KiB
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Raw Blame History

/*
* 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 "GLConsumer"
#define ATRACE_TAG ATRACE_TAG_GRAPHICS
//#define LOG_NDEBUG 0
#define GL_GLEXT_PROTOTYPES
#define EGL_EGLEXT_PROTOTYPES
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <cutils/compiler.h>
#include <hardware/hardware.h>
#include <gui/BufferItem.h>
#include <gui/GLConsumer.h>
#include <gui/IGraphicBufferAlloc.h>
#include <gui/ISurfaceComposer.h>
#include <gui/SurfaceComposerClient.h>
#include <private/gui/ComposerService.h>
#include <private/gui/SyncFeatures.h>
#include <utils/Log.h>
#include <utils/String8.h>
#include <utils/Trace.h>
EGLAPI const char* eglQueryStringImplementationANDROID(EGLDisplay dpy, EGLint name);
#define CROP_EXT_STR "EGL_ANDROID_image_crop"
namespace android {
// Macros for including the GLConsumer name in log messages
#define GLC_LOGV(x, ...) ALOGV("[%s] " x, mName.string(), ##__VA_ARGS__)
#define GLC_LOGD(x, ...) ALOGD("[%s] " x, mName.string(), ##__VA_ARGS__)
//#define GLC_LOGI(x, ...) ALOGI("[%s] " x, mName.string(), ##__VA_ARGS__)
#define GLC_LOGW(x, ...) ALOGW("[%s] " x, mName.string(), ##__VA_ARGS__)
#define GLC_LOGE(x, ...) ALOGE("[%s] " x, mName.string(), ##__VA_ARGS__)
static const struct {
uint32_t width, height;
char const* bits;
} kDebugData = { 15, 12,
"_______________"
"_______________"
"_____XX_XX_____"
"__X_X_____X_X__"
"__X_XXXXXXX_X__"
"__XXXXXXXXXXX__"
"___XX_XXX_XX___"
"____XXXXXXX____"
"_____X___X_____"
"____X_____X____"
"_______________"
"_______________"
};
// Transform matrices
static float mtxIdentity[16] = {
1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
0, 0, 0, 1,
};
static float mtxFlipH[16] = {
-1, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 0,
1, 0, 0, 1,
};
static float mtxFlipV[16] = {
1, 0, 0, 0,
0, -1, 0, 0,
0, 0, 1, 0,
0, 1, 0, 1,
};
static float mtxRot90[16] = {
0, 1, 0, 0,
-1, 0, 0, 0,
0, 0, 1, 0,
1, 0, 0, 1,
};
static void mtxMul(float out[16], const float a[16], const float b[16]);
Mutex GLConsumer::sStaticInitLock;
sp<GraphicBuffer> GLConsumer::sReleasedTexImageBuffer;
static bool hasEglAndroidImageCropImpl() {
EGLDisplay dpy = eglGetDisplay(EGL_DEFAULT_DISPLAY);
const char* exts = eglQueryStringImplementationANDROID(dpy, EGL_EXTENSIONS);
size_t cropExtLen = strlen(CROP_EXT_STR);
size_t extsLen = strlen(exts);
bool equal = !strcmp(CROP_EXT_STR, exts);
bool atStart = !strncmp(CROP_EXT_STR " ", exts, cropExtLen+1);
bool atEnd = (cropExtLen+1) < extsLen &&
!strcmp(" " CROP_EXT_STR, exts + extsLen - (cropExtLen+1));
bool inMiddle = strstr(exts, " " CROP_EXT_STR " ");
return equal || atStart || atEnd || inMiddle;
}
static bool hasEglAndroidImageCrop() {
// Only compute whether the extension is present once the first time this
// function is called.
static bool hasIt = hasEglAndroidImageCropImpl();
return hasIt;
}
static bool isEglImageCroppable(const Rect& crop) {
return hasEglAndroidImageCrop() && (crop.left == 0 && crop.top == 0);
}
GLConsumer::GLConsumer(const sp<IGraphicBufferConsumer>& bq, uint32_t tex,
uint32_t texTarget, bool useFenceSync, bool isControlledByApp) :
ConsumerBase(bq, isControlledByApp),
mCurrentTransform(0),
mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
mCurrentFence(Fence::NO_FENCE),
mCurrentTimestamp(0),
mCurrentFrameNumber(0),
mDefaultWidth(1),
mDefaultHeight(1),
mFilteringEnabled(true),
mTexName(tex),
mUseFenceSync(useFenceSync),
mTexTarget(texTarget),
mEglDisplay(EGL_NO_DISPLAY),
mEglContext(EGL_NO_CONTEXT),
mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
mAttached(true)
{
GLC_LOGV("GLConsumer");
memcpy(mCurrentTransformMatrix, mtxIdentity,
sizeof(mCurrentTransformMatrix));
mConsumer->setConsumerUsageBits(DEFAULT_USAGE_FLAGS);
}
GLConsumer::GLConsumer(const sp<IGraphicBufferConsumer>& bq, uint32_t texTarget,
bool useFenceSync, bool isControlledByApp) :
ConsumerBase(bq, isControlledByApp),
mCurrentTransform(0),
mCurrentScalingMode(NATIVE_WINDOW_SCALING_MODE_FREEZE),
mCurrentFence(Fence::NO_FENCE),
mCurrentTimestamp(0),
mCurrentFrameNumber(0),
mDefaultWidth(1),
mDefaultHeight(1),
mFilteringEnabled(true),
mTexName(0),
mUseFenceSync(useFenceSync),
mTexTarget(texTarget),
mEglDisplay(EGL_NO_DISPLAY),
mEglContext(EGL_NO_CONTEXT),
mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
mAttached(false)
{
GLC_LOGV("GLConsumer");
memcpy(mCurrentTransformMatrix, mtxIdentity,
sizeof(mCurrentTransformMatrix));
mConsumer->setConsumerUsageBits(DEFAULT_USAGE_FLAGS);
}
status_t GLConsumer::setDefaultMaxBufferCount(int bufferCount) {
Mutex::Autolock lock(mMutex);
return mConsumer->setDefaultMaxBufferCount(bufferCount);
}
status_t GLConsumer::setDefaultBufferSize(uint32_t w, uint32_t h)
{
Mutex::Autolock lock(mMutex);
mDefaultWidth = w;
mDefaultHeight = h;
return mConsumer->setDefaultBufferSize(w, h);
}
status_t GLConsumer::updateTexImage() {
ATRACE_CALL();
GLC_LOGV("updateTexImage");
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
GLC_LOGE("updateTexImage: GLConsumer is abandoned!");
return NO_INIT;
}
// Make sure the EGL state is the same as in previous calls.
status_t err = checkAndUpdateEglStateLocked();
if (err != NO_ERROR) {
return err;
}
BufferItem item;
// Acquire the next buffer.
// In asynchronous mode the list is guaranteed to be one buffer
// deep, while in synchronous mode we use the oldest buffer.
err = acquireBufferLocked(&item, 0);
if (err != NO_ERROR) {
if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
// We always bind the texture even if we don't update its contents.
GLC_LOGV("updateTexImage: no buffers were available");
glBindTexture(mTexTarget, mTexName);
err = NO_ERROR;
} else {
GLC_LOGE("updateTexImage: acquire failed: %s (%d)",
strerror(-err), err);
}
return err;
}
// Release the previous buffer.
err = updateAndReleaseLocked(item);
if (err != NO_ERROR) {
// We always bind the texture.
glBindTexture(mTexTarget, mTexName);
return err;
}
// Bind the new buffer to the GL texture, and wait until it's ready.
return bindTextureImageLocked();
}
status_t GLConsumer::releaseTexImage() {
ATRACE_CALL();
GLC_LOGV("releaseTexImage");
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
GLC_LOGE("releaseTexImage: GLConsumer is abandoned!");
return NO_INIT;
}
// Make sure the EGL state is the same as in previous calls.
status_t err = NO_ERROR;
if (mAttached) {
err = checkAndUpdateEglStateLocked(true);
if (err != NO_ERROR) {
return err;
}
} else {
// if we're detached, no need to validate EGL's state -- we won't use it.
}
// Update the GLConsumer state.
int buf = mCurrentTexture;
if (buf != BufferQueue::INVALID_BUFFER_SLOT) {
GLC_LOGV("releaseTexImage: (slot=%d, mAttached=%d)", buf, mAttached);
if (mAttached) {
// Do whatever sync ops we need to do before releasing the slot.
err = syncForReleaseLocked(mEglDisplay);
if (err != NO_ERROR) {
GLC_LOGE("syncForReleaseLocked failed (slot=%d), err=%d", buf, err);
return err;
}
} else {
// if we're detached, we just use the fence that was created in detachFromContext()
// so... basically, nothing more to do here.
}
err = releaseBufferLocked(buf, mSlots[buf].mGraphicBuffer, mEglDisplay, EGL_NO_SYNC_KHR);
if (err < NO_ERROR) {
GLC_LOGE("releaseTexImage: failed to release buffer: %s (%d)",
strerror(-err), err);
return err;
}
if (mReleasedTexImage == NULL) {
mReleasedTexImage = new EglImage(getDebugTexImageBuffer());
}
mCurrentTexture = BufferQueue::INVALID_BUFFER_SLOT;
mCurrentTextureImage = mReleasedTexImage;
mCurrentCrop.makeInvalid();
mCurrentTransform = 0;
mCurrentScalingMode = NATIVE_WINDOW_SCALING_MODE_FREEZE;
mCurrentTimestamp = 0;
mCurrentFence = Fence::NO_FENCE;
if (mAttached) {
// This binds a dummy buffer (mReleasedTexImage).
status_t result = bindTextureImageLocked();
if (result != NO_ERROR) {
return result;
}
} else {
// detached, don't touch the texture (and we may not even have an
// EGLDisplay here.
}
}
return NO_ERROR;
}
sp<GraphicBuffer> GLConsumer::getDebugTexImageBuffer() {
Mutex::Autolock _l(sStaticInitLock);
if (CC_UNLIKELY(sReleasedTexImageBuffer == NULL)) {
// The first time, create the debug texture in case the application
// continues to use it.
sp<GraphicBuffer> buffer = new GraphicBuffer(
kDebugData.width, kDebugData.height, PIXEL_FORMAT_RGBA_8888,
GraphicBuffer::USAGE_SW_WRITE_RARELY);
uint32_t* bits;
buffer->lock(GraphicBuffer::USAGE_SW_WRITE_RARELY, reinterpret_cast<void**>(&bits));
uint32_t stride = buffer->getStride();
uint32_t height = buffer->getHeight();
memset(bits, 0, stride * height * 4);
for (uint32_t y = 0; y < kDebugData.height; y++) {
for (uint32_t x = 0; x < kDebugData.width; x++) {
bits[x] = (kDebugData.bits[y + kDebugData.width + x] == 'X') ?
0xFF000000 : 0xFFFFFFFF;
}
bits += stride;
}
buffer->unlock();
sReleasedTexImageBuffer = buffer;
}
return sReleasedTexImageBuffer;
}
status_t GLConsumer::acquireBufferLocked(BufferItem *item,
nsecs_t presentWhen, uint64_t maxFrameNumber) {
status_t err = ConsumerBase::acquireBufferLocked(item, presentWhen,
maxFrameNumber);
if (err != NO_ERROR) {
return err;
}
// If item->mGraphicBuffer is not null, this buffer has not been acquired
// before, so any prior EglImage created is using a stale buffer. This
// replaces any old EglImage with a new one (using the new buffer).
if (item->mGraphicBuffer != NULL) {
int slot = item->mBuf;
mEglSlots[slot].mEglImage = new EglImage(item->mGraphicBuffer);
}
return NO_ERROR;
}
status_t GLConsumer::releaseBufferLocked(int buf,
sp<GraphicBuffer> graphicBuffer,
EGLDisplay display, EGLSyncKHR eglFence) {
// release the buffer if it hasn't already been discarded by the
// BufferQueue. This can happen, for example, when the producer of this
// buffer has reallocated the original buffer slot after this buffer
// was acquired.
status_t err = ConsumerBase::releaseBufferLocked(
buf, graphicBuffer, display, eglFence);
mEglSlots[buf].mEglFence = EGL_NO_SYNC_KHR;
return err;
}
status_t GLConsumer::updateAndReleaseLocked(const BufferItem& item)
{
status_t err = NO_ERROR;
int buf = item.mBuf;
if (!mAttached) {
GLC_LOGE("updateAndRelease: GLConsumer is not attached to an OpenGL "
"ES context");
releaseBufferLocked(buf, mSlots[buf].mGraphicBuffer,
mEglDisplay, EGL_NO_SYNC_KHR);
return INVALID_OPERATION;
}
// Confirm state.
err = checkAndUpdateEglStateLocked();
if (err != NO_ERROR) {
releaseBufferLocked(buf, mSlots[buf].mGraphicBuffer,
mEglDisplay, EGL_NO_SYNC_KHR);
return err;
}
// Ensure we have a valid EglImageKHR for the slot, creating an EglImage
// if nessessary, for the gralloc buffer currently in the slot in
// ConsumerBase.
// We may have to do this even when item.mGraphicBuffer == NULL (which
// means the buffer was previously acquired).
err = mEglSlots[buf].mEglImage->createIfNeeded(mEglDisplay, item.mCrop);
if (err != NO_ERROR) {
GLC_LOGW("updateAndRelease: unable to createImage on display=%p slot=%d",
mEglDisplay, buf);
releaseBufferLocked(buf, mSlots[buf].mGraphicBuffer,
mEglDisplay, EGL_NO_SYNC_KHR);
return UNKNOWN_ERROR;
}
// Do whatever sync ops we need to do before releasing the old slot.
err = syncForReleaseLocked(mEglDisplay);
if (err != NO_ERROR) {
// Release the buffer we just acquired. It's not safe to
// release the old buffer, so instead we just drop the new frame.
// As we are still under lock since acquireBuffer, it is safe to
// release by slot.
releaseBufferLocked(buf, mSlots[buf].mGraphicBuffer,
mEglDisplay, EGL_NO_SYNC_KHR);
return err;
}
GLC_LOGV("updateAndRelease: (slot=%d buf=%p) -> (slot=%d buf=%p)",
mCurrentTexture, mCurrentTextureImage != NULL ?
mCurrentTextureImage->graphicBufferHandle() : 0,
buf, mSlots[buf].mGraphicBuffer->handle);
// release old buffer
if (mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) {
status_t status = releaseBufferLocked(
mCurrentTexture, mCurrentTextureImage->graphicBuffer(),
mEglDisplay, mEglSlots[mCurrentTexture].mEglFence);
if (status < NO_ERROR) {
GLC_LOGE("updateAndRelease: failed to release buffer: %s (%d)",
strerror(-status), status);
err = status;
// keep going, with error raised [?]
}
}
// Update the GLConsumer state.
mCurrentTexture = buf;
mCurrentTextureImage = mEglSlots[buf].mEglImage;
mCurrentCrop = item.mCrop;
mCurrentTransform = item.mTransform;
mCurrentScalingMode = item.mScalingMode;
mCurrentTimestamp = item.mTimestamp;
mCurrentFence = item.mFence;
mCurrentFrameNumber = item.mFrameNumber;
computeCurrentTransformMatrixLocked();
return err;
}
status_t GLConsumer::bindTextureImageLocked() {
if (mEglDisplay == EGL_NO_DISPLAY) {
ALOGE("bindTextureImage: invalid display");
return INVALID_OPERATION;
}
GLenum error;
while ((error = glGetError()) != GL_NO_ERROR) {
GLC_LOGW("bindTextureImage: clearing GL error: %#04x", error);
}
glBindTexture(mTexTarget, mTexName);
if (mCurrentTexture == BufferQueue::INVALID_BUFFER_SLOT &&
mCurrentTextureImage == NULL) {
GLC_LOGE("bindTextureImage: no currently-bound texture");
return NO_INIT;
}
status_t err = mCurrentTextureImage->createIfNeeded(mEglDisplay,
mCurrentCrop);
if (err != NO_ERROR) {
GLC_LOGW("bindTextureImage: can't create image on display=%p slot=%d",
mEglDisplay, mCurrentTexture);
return UNKNOWN_ERROR;
}
mCurrentTextureImage->bindToTextureTarget(mTexTarget);
// In the rare case that the display is terminated and then initialized
// again, we can't detect that the display changed (it didn't), but the
// image is invalid. In this case, repeat the exact same steps while
// forcing the creation of a new image.
if ((error = glGetError()) != GL_NO_ERROR) {
glBindTexture(mTexTarget, mTexName);
status_t result = mCurrentTextureImage->createIfNeeded(mEglDisplay,
mCurrentCrop,
true);
if (result != NO_ERROR) {
GLC_LOGW("bindTextureImage: can't create image on display=%p slot=%d",
mEglDisplay, mCurrentTexture);
return UNKNOWN_ERROR;
}
mCurrentTextureImage->bindToTextureTarget(mTexTarget);
if ((error = glGetError()) != GL_NO_ERROR) {
GLC_LOGE("bindTextureImage: error binding external image: %#04x", error);
return UNKNOWN_ERROR;
}
}
// Wait for the new buffer to be ready.
return doGLFenceWaitLocked();
}
status_t GLConsumer::checkAndUpdateEglStateLocked(bool contextCheck) {
EGLDisplay dpy = eglGetCurrentDisplay();
EGLContext ctx = eglGetCurrentContext();
if (!contextCheck) {
// if this is the first time we're called, mEglDisplay/mEglContext have
// never been set, so don't error out (below).
if (mEglDisplay == EGL_NO_DISPLAY) {
mEglDisplay = dpy;
}
if (mEglContext == EGL_NO_CONTEXT) {
mEglContext = ctx;
}
}
if (mEglDisplay != dpy || dpy == EGL_NO_DISPLAY) {
GLC_LOGE("checkAndUpdateEglState: invalid current EGLDisplay");
return INVALID_OPERATION;
}
if (mEglContext != ctx || ctx == EGL_NO_CONTEXT) {
GLC_LOGE("checkAndUpdateEglState: invalid current EGLContext");
return INVALID_OPERATION;
}
mEglDisplay = dpy;
mEglContext = ctx;
return NO_ERROR;
}
void GLConsumer::setReleaseFence(const sp<Fence>& fence) {
if (fence->isValid() &&
mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) {
status_t err = addReleaseFence(mCurrentTexture,
mCurrentTextureImage->graphicBuffer(), fence);
if (err != OK) {
GLC_LOGE("setReleaseFence: failed to add the fence: %s (%d)",
strerror(-err), err);
}
}
}
status_t GLConsumer::detachFromContext() {
ATRACE_CALL();
GLC_LOGV("detachFromContext");
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
GLC_LOGE("detachFromContext: abandoned GLConsumer");
return NO_INIT;
}
if (!mAttached) {
GLC_LOGE("detachFromContext: GLConsumer is not attached to a "
"context");
return INVALID_OPERATION;
}
EGLDisplay dpy = eglGetCurrentDisplay();
EGLContext ctx = eglGetCurrentContext();
if (mEglDisplay != dpy && mEglDisplay != EGL_NO_DISPLAY) {
GLC_LOGE("detachFromContext: invalid current EGLDisplay");
return INVALID_OPERATION;
}
if (mEglContext != ctx && mEglContext != EGL_NO_CONTEXT) {
GLC_LOGE("detachFromContext: invalid current EGLContext");
return INVALID_OPERATION;
}
if (dpy != EGL_NO_DISPLAY && ctx != EGL_NO_CONTEXT) {
status_t err = syncForReleaseLocked(dpy);
if (err != OK) {
return err;
}
glDeleteTextures(1, &mTexName);
}
mEglDisplay = EGL_NO_DISPLAY;
mEglContext = EGL_NO_CONTEXT;
mAttached = false;
return OK;
}
status_t GLConsumer::attachToContext(uint32_t tex) {
ATRACE_CALL();
GLC_LOGV("attachToContext");
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
GLC_LOGE("attachToContext: abandoned GLConsumer");
return NO_INIT;
}
if (mAttached) {
GLC_LOGE("attachToContext: GLConsumer is already attached to a "
"context");
return INVALID_OPERATION;
}
EGLDisplay dpy = eglGetCurrentDisplay();
EGLContext ctx = eglGetCurrentContext();
if (dpy == EGL_NO_DISPLAY) {
GLC_LOGE("attachToContext: invalid current EGLDisplay");
return INVALID_OPERATION;
}
if (ctx == EGL_NO_CONTEXT) {
GLC_LOGE("attachToContext: invalid current EGLContext");
return INVALID_OPERATION;
}
// We need to bind the texture regardless of whether there's a current
// buffer.
glBindTexture(mTexTarget, GLuint(tex));
mEglDisplay = dpy;
mEglContext = ctx;
mTexName = tex;
mAttached = true;
if (mCurrentTextureImage != NULL) {
// This may wait for a buffer a second time. This is likely required if
// this is a different context, since otherwise the wait could be skipped
// by bouncing through another context. For the same context the extra
// wait is redundant.
status_t err = bindTextureImageLocked();
if (err != NO_ERROR) {
return err;
}
}
return OK;
}
status_t GLConsumer::syncForReleaseLocked(EGLDisplay dpy) {
GLC_LOGV("syncForReleaseLocked");
if (mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) {
if (SyncFeatures::getInstance().useNativeFenceSync()) {
EGLSyncKHR sync = eglCreateSyncKHR(dpy,
EGL_SYNC_NATIVE_FENCE_ANDROID, NULL);
if (sync == EGL_NO_SYNC_KHR) {
GLC_LOGE("syncForReleaseLocked: error creating EGL fence: %#x",
eglGetError());
return UNKNOWN_ERROR;
}
glFlush();
int fenceFd = eglDupNativeFenceFDANDROID(dpy, sync);
eglDestroySyncKHR(dpy, sync);
if (fenceFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
GLC_LOGE("syncForReleaseLocked: error dup'ing native fence "
"fd: %#x", eglGetError());
return UNKNOWN_ERROR;
}
sp<Fence> fence(new Fence(fenceFd));
status_t err = addReleaseFenceLocked(mCurrentTexture,
mCurrentTextureImage->graphicBuffer(), fence);
if (err != OK) {
GLC_LOGE("syncForReleaseLocked: error adding release fence: "
"%s (%d)", strerror(-err), err);
return err;
}
} else if (mUseFenceSync && SyncFeatures::getInstance().useFenceSync()) {
EGLSyncKHR fence = mEglSlots[mCurrentTexture].mEglFence;
if (fence != EGL_NO_SYNC_KHR) {
// There is already a fence for the current slot. We need to
// wait on that before replacing it with another fence to
// ensure that all outstanding buffer accesses have completed
// before the producer accesses it.
EGLint result = eglClientWaitSyncKHR(dpy, fence, 0, 1000000000);
if (result == EGL_FALSE) {
GLC_LOGE("syncForReleaseLocked: error waiting for previous "
"fence: %#x", eglGetError());
return UNKNOWN_ERROR;
} else if (result == EGL_TIMEOUT_EXPIRED_KHR) {
GLC_LOGE("syncForReleaseLocked: timeout waiting for previous "
"fence");
return TIMED_OUT;
}
eglDestroySyncKHR(dpy, fence);
}
// Create a fence for the outstanding accesses in the current
// OpenGL ES context.
fence = eglCreateSyncKHR(dpy, EGL_SYNC_FENCE_KHR, NULL);
if (fence == EGL_NO_SYNC_KHR) {
GLC_LOGE("syncForReleaseLocked: error creating fence: %#x",
eglGetError());
return UNKNOWN_ERROR;
}
glFlush();
mEglSlots[mCurrentTexture].mEglFence = fence;
}
}
return OK;
}
bool GLConsumer::isExternalFormat(PixelFormat format)
{
switch (format) {
// supported YUV formats
case HAL_PIXEL_FORMAT_YV12:
// Legacy/deprecated YUV formats
case HAL_PIXEL_FORMAT_YCbCr_422_SP:
case HAL_PIXEL_FORMAT_YCrCb_420_SP:
case HAL_PIXEL_FORMAT_YCbCr_422_I:
return true;
}
// Any OEM format needs to be considered
if (format>=0x100 && format<=0x1FF)
return true;
return false;
}
uint32_t GLConsumer::getCurrentTextureTarget() const {
return mTexTarget;
}
void GLConsumer::getTransformMatrix(float mtx[16]) {
Mutex::Autolock lock(mMutex);
memcpy(mtx, mCurrentTransformMatrix, sizeof(mCurrentTransformMatrix));
}
void GLConsumer::setFilteringEnabled(bool enabled) {
Mutex::Autolock lock(mMutex);
if (mAbandoned) {
GLC_LOGE("setFilteringEnabled: GLConsumer is abandoned!");
return;
}
bool needsRecompute = mFilteringEnabled != enabled;
mFilteringEnabled = enabled;
if (needsRecompute && mCurrentTextureImage==NULL) {
GLC_LOGD("setFilteringEnabled called with mCurrentTextureImage == NULL");
}
if (needsRecompute && mCurrentTextureImage != NULL) {
computeCurrentTransformMatrixLocked();
}
}
void GLConsumer::computeCurrentTransformMatrixLocked() {
GLC_LOGV("computeCurrentTransformMatrixLocked");
float xform[16];
for (int i = 0; i < 16; i++) {
xform[i] = mtxIdentity[i];
}
if (mCurrentTransform & NATIVE_WINDOW_TRANSFORM_FLIP_H) {
float result[16];
mtxMul(result, xform, mtxFlipH);
for (int i = 0; i < 16; i++) {
xform[i] = result[i];
}
}
if (mCurrentTransform & NATIVE_WINDOW_TRANSFORM_FLIP_V) {
float result[16];
mtxMul(result, xform, mtxFlipV);
for (int i = 0; i < 16; i++) {
xform[i] = result[i];
}
}
if (mCurrentTransform & NATIVE_WINDOW_TRANSFORM_ROT_90) {
float result[16];
mtxMul(result, xform, mtxRot90);
for (int i = 0; i < 16; i++) {
xform[i] = result[i];
}
}
sp<GraphicBuffer> buf = (mCurrentTextureImage == NULL) ?
NULL : mCurrentTextureImage->graphicBuffer();
if (buf == NULL) {
GLC_LOGD("computeCurrentTransformMatrixLocked: mCurrentTextureImage is NULL");
}
float mtxBeforeFlipV[16];
if (!isEglImageCroppable(mCurrentCrop)) {
Rect cropRect = mCurrentCrop;
float tx = 0.0f, ty = 0.0f, sx = 1.0f, sy = 1.0f;
float bufferWidth = buf->getWidth();
float bufferHeight = buf->getHeight();
if (!cropRect.isEmpty()) {
float shrinkAmount = 0.0f;
if (mFilteringEnabled) {
// In order to prevent bilinear sampling beyond the edge of the
// crop rectangle we may need to shrink it by 2 texels in each
// dimension. Normally this would just need to take 1/2 a texel
// off each end, but because the chroma channels of YUV420 images
// are subsampled we may need to shrink the crop region by a whole
// texel on each side.
switch (buf->getPixelFormat()) {
case PIXEL_FORMAT_RGBA_8888:
case PIXEL_FORMAT_RGBX_8888:
case PIXEL_FORMAT_RGB_888:
case PIXEL_FORMAT_RGB_565:
case PIXEL_FORMAT_BGRA_8888:
// We know there's no subsampling of any channels, so we
// only need to shrink by a half a pixel.
shrinkAmount = 0.5;
break;
default:
// If we don't recognize the format, we must assume the
// worst case (that we care about), which is YUV420.
shrinkAmount = 1.0;
break;
}
}
// Only shrink the dimensions that are not the size of the buffer.
if (cropRect.width() < bufferWidth) {
tx = (float(cropRect.left) + shrinkAmount) / bufferWidth;
sx = (float(cropRect.width()) - (2.0f * shrinkAmount)) /
bufferWidth;
}
if (cropRect.height() < bufferHeight) {
ty = (float(bufferHeight - cropRect.bottom) + shrinkAmount) /
bufferHeight;
sy = (float(cropRect.height()) - (2.0f * shrinkAmount)) /
bufferHeight;
}
}
float crop[16] = {
sx, 0, 0, 0,
0, sy, 0, 0,
0, 0, 1, 0,
tx, ty, 0, 1,
};
mtxMul(mtxBeforeFlipV, crop, xform);
} else {
for (int i = 0; i < 16; i++) {
mtxBeforeFlipV[i] = xform[i];
}
}
// SurfaceFlinger expects the top of its window textures to be at a Y
// coordinate of 0, so GLConsumer must behave the same way. We don't
// want to expose this to applications, however, so we must add an
// additional vertical flip to the transform after all the other transforms.
mtxMul(mCurrentTransformMatrix, mtxFlipV, mtxBeforeFlipV);
}
nsecs_t GLConsumer::getTimestamp() {
GLC_LOGV("getTimestamp");
Mutex::Autolock lock(mMutex);
return mCurrentTimestamp;
}
uint64_t GLConsumer::getFrameNumber() {
GLC_LOGV("getFrameNumber");
Mutex::Autolock lock(mMutex);
return mCurrentFrameNumber;
}
sp<GraphicBuffer> GLConsumer::getCurrentBuffer() const {
Mutex::Autolock lock(mMutex);
return (mCurrentTextureImage == NULL) ?
NULL : mCurrentTextureImage->graphicBuffer();
}
Rect GLConsumer::getCurrentCrop() const {
Mutex::Autolock lock(mMutex);
Rect outCrop = mCurrentCrop;
if (mCurrentScalingMode == NATIVE_WINDOW_SCALING_MODE_SCALE_CROP) {
uint32_t newWidth = static_cast<uint32_t>(mCurrentCrop.width());
uint32_t newHeight = static_cast<uint32_t>(mCurrentCrop.height());
if (newWidth * mDefaultHeight > newHeight * mDefaultWidth) {
newWidth = newHeight * mDefaultWidth / mDefaultHeight;
GLC_LOGV("too wide: newWidth = %d", newWidth);
} else if (newWidth * mDefaultHeight < newHeight * mDefaultWidth) {
newHeight = newWidth * mDefaultHeight / mDefaultWidth;
GLC_LOGV("too tall: newHeight = %d", newHeight);
}
uint32_t currentWidth = static_cast<uint32_t>(mCurrentCrop.width());
uint32_t currentHeight = static_cast<uint32_t>(mCurrentCrop.height());
// The crop is too wide
if (newWidth < currentWidth) {
uint32_t dw = (currentWidth - newWidth) / 2;
outCrop.left += dw;
outCrop.right -= dw;
// The crop is too tall
} else if (newHeight < currentHeight) {
uint32_t dh = (currentHeight - newHeight) / 2;
outCrop.top += dh;
outCrop.bottom -= dh;
}
GLC_LOGV("getCurrentCrop final crop [%d,%d,%d,%d]",
outCrop.left, outCrop.top,
outCrop.right,outCrop.bottom);
}
return outCrop;
}
uint32_t GLConsumer::getCurrentTransform() const {
Mutex::Autolock lock(mMutex);
return mCurrentTransform;
}
uint32_t GLConsumer::getCurrentScalingMode() const {
Mutex::Autolock lock(mMutex);
return mCurrentScalingMode;
}
sp<Fence> GLConsumer::getCurrentFence() const {
Mutex::Autolock lock(mMutex);
return mCurrentFence;
}
status_t GLConsumer::doGLFenceWait() const {
Mutex::Autolock lock(mMutex);
return doGLFenceWaitLocked();
}
status_t GLConsumer::doGLFenceWaitLocked() const {
EGLDisplay dpy = eglGetCurrentDisplay();
EGLContext ctx = eglGetCurrentContext();
if (mEglDisplay != dpy || mEglDisplay == EGL_NO_DISPLAY) {
GLC_LOGE("doGLFenceWait: invalid current EGLDisplay");
return INVALID_OPERATION;
}
if (mEglContext != ctx || mEglContext == EGL_NO_CONTEXT) {
GLC_LOGE("doGLFenceWait: invalid current EGLContext");
return INVALID_OPERATION;
}
if (mCurrentFence->isValid()) {
if (SyncFeatures::getInstance().useWaitSync()) {
// Create an EGLSyncKHR from the current fence.
int fenceFd = mCurrentFence->dup();
if (fenceFd == -1) {
GLC_LOGE("doGLFenceWait: error dup'ing fence fd: %d", errno);
return -errno;
}
EGLint attribs[] = {
EGL_SYNC_NATIVE_FENCE_FD_ANDROID, fenceFd,
EGL_NONE
};
EGLSyncKHR sync = eglCreateSyncKHR(dpy,
EGL_SYNC_NATIVE_FENCE_ANDROID, attribs);
if (sync == EGL_NO_SYNC_KHR) {
close(fenceFd);
GLC_LOGE("doGLFenceWait: error creating EGL fence: %#x",
eglGetError());
return UNKNOWN_ERROR;
}
// XXX: The spec draft is inconsistent as to whether this should
// return an EGLint or void. Ignore the return value for now, as
// it's not strictly needed.
eglWaitSyncKHR(dpy, sync, 0);
EGLint eglErr = eglGetError();
eglDestroySyncKHR(dpy, sync);
if (eglErr != EGL_SUCCESS) {
GLC_LOGE("doGLFenceWait: error waiting for EGL fence: %#x",
eglErr);
return UNKNOWN_ERROR;
}
} else {
status_t err = mCurrentFence->waitForever(
"GLConsumer::doGLFenceWaitLocked");
if (err != NO_ERROR) {
GLC_LOGE("doGLFenceWait: error waiting for fence: %d", err);
return err;
}
}
}
return NO_ERROR;
}
void GLConsumer::freeBufferLocked(int slotIndex) {
GLC_LOGV("freeBufferLocked: slotIndex=%d", slotIndex);
if (slotIndex == mCurrentTexture) {
mCurrentTexture = BufferQueue::INVALID_BUFFER_SLOT;
}
mEglSlots[slotIndex].mEglImage.clear();
ConsumerBase::freeBufferLocked(slotIndex);
}
void GLConsumer::abandonLocked() {
GLC_LOGV("abandonLocked");
mCurrentTextureImage.clear();
ConsumerBase::abandonLocked();
}
void GLConsumer::setName(const String8& name) {
Mutex::Autolock _l(mMutex);
mName = name;
mConsumer->setConsumerName(name);
}
status_t GLConsumer::setDefaultBufferFormat(PixelFormat defaultFormat) {
Mutex::Autolock lock(mMutex);
return mConsumer->setDefaultBufferFormat(defaultFormat);
}
status_t GLConsumer::setDefaultBufferDataSpace(
android_dataspace defaultDataSpace) {
Mutex::Autolock lock(mMutex);
return mConsumer->setDefaultBufferDataSpace(defaultDataSpace);
}
status_t GLConsumer::setConsumerUsageBits(uint32_t usage) {
Mutex::Autolock lock(mMutex);
usage |= DEFAULT_USAGE_FLAGS;
return mConsumer->setConsumerUsageBits(usage);
}
status_t GLConsumer::setTransformHint(uint32_t hint) {
Mutex::Autolock lock(mMutex);
return mConsumer->setTransformHint(hint);
}
void GLConsumer::dumpLocked(String8& result, const char* prefix) const
{
result.appendFormat(
"%smTexName=%d mCurrentTexture=%d\n"
"%smCurrentCrop=[%d,%d,%d,%d] mCurrentTransform=%#x\n",
prefix, mTexName, mCurrentTexture, prefix, mCurrentCrop.left,
mCurrentCrop.top, mCurrentCrop.right, mCurrentCrop.bottom,
mCurrentTransform);
ConsumerBase::dumpLocked(result, prefix);
}
static void mtxMul(float out[16], const float a[16], const float b[16]) {
out[0] = a[0]*b[0] + a[4]*b[1] + a[8]*b[2] + a[12]*b[3];
out[1] = a[1]*b[0] + a[5]*b[1] + a[9]*b[2] + a[13]*b[3];
out[2] = a[2]*b[0] + a[6]*b[1] + a[10]*b[2] + a[14]*b[3];
out[3] = a[3]*b[0] + a[7]*b[1] + a[11]*b[2] + a[15]*b[3];
out[4] = a[0]*b[4] + a[4]*b[5] + a[8]*b[6] + a[12]*b[7];
out[5] = a[1]*b[4] + a[5]*b[5] + a[9]*b[6] + a[13]*b[7];
out[6] = a[2]*b[4] + a[6]*b[5] + a[10]*b[6] + a[14]*b[7];
out[7] = a[3]*b[4] + a[7]*b[5] + a[11]*b[6] + a[15]*b[7];
out[8] = a[0]*b[8] + a[4]*b[9] + a[8]*b[10] + a[12]*b[11];
out[9] = a[1]*b[8] + a[5]*b[9] + a[9]*b[10] + a[13]*b[11];
out[10] = a[2]*b[8] + a[6]*b[9] + a[10]*b[10] + a[14]*b[11];
out[11] = a[3]*b[8] + a[7]*b[9] + a[11]*b[10] + a[15]*b[11];
out[12] = a[0]*b[12] + a[4]*b[13] + a[8]*b[14] + a[12]*b[15];
out[13] = a[1]*b[12] + a[5]*b[13] + a[9]*b[14] + a[13]*b[15];
out[14] = a[2]*b[12] + a[6]*b[13] + a[10]*b[14] + a[14]*b[15];
out[15] = a[3]*b[12] + a[7]*b[13] + a[11]*b[14] + a[15]*b[15];
}
GLConsumer::EglImage::EglImage(sp<GraphicBuffer> graphicBuffer) :
mGraphicBuffer(graphicBuffer),
mEglImage(EGL_NO_IMAGE_KHR),
mEglDisplay(EGL_NO_DISPLAY) {
}
GLConsumer::EglImage::~EglImage() {
if (mEglImage != EGL_NO_IMAGE_KHR) {
if (!eglDestroyImageKHR(mEglDisplay, mEglImage)) {
ALOGE("~EglImage: eglDestroyImageKHR failed");
}
eglTerminate(mEglDisplay);
}
}
status_t GLConsumer::EglImage::createIfNeeded(EGLDisplay eglDisplay,
const Rect& cropRect,
bool forceCreation) {
// If there's an image and it's no longer valid, destroy it.
bool haveImage = mEglImage != EGL_NO_IMAGE_KHR;
bool displayInvalid = mEglDisplay != eglDisplay;
bool cropInvalid = hasEglAndroidImageCrop() && mCropRect != cropRect;
if (haveImage && (displayInvalid || cropInvalid || forceCreation)) {
if (!eglDestroyImageKHR(mEglDisplay, mEglImage)) {
ALOGE("createIfNeeded: eglDestroyImageKHR failed");
}
eglTerminate(mEglDisplay);
mEglImage = EGL_NO_IMAGE_KHR;
mEglDisplay = EGL_NO_DISPLAY;
}
// If there's no image, create one.
if (mEglImage == EGL_NO_IMAGE_KHR) {
mEglDisplay = eglDisplay;
mCropRect = cropRect;
mEglImage = createImage(mEglDisplay, mGraphicBuffer, mCropRect);
}
// Fail if we can't create a valid image.
if (mEglImage == EGL_NO_IMAGE_KHR) {
mEglDisplay = EGL_NO_DISPLAY;
mCropRect.makeInvalid();
const sp<GraphicBuffer>& buffer = mGraphicBuffer;
ALOGE("Failed to create image. size=%ux%u st=%u usage=0x%x fmt=%d",
buffer->getWidth(), buffer->getHeight(), buffer->getStride(),
buffer->getUsage(), buffer->getPixelFormat());
return UNKNOWN_ERROR;
}
return OK;
}
void GLConsumer::EglImage::bindToTextureTarget(uint32_t texTarget) {
glEGLImageTargetTexture2DOES(texTarget,
static_cast<GLeglImageOES>(mEglImage));
}
EGLImageKHR GLConsumer::EglImage::createImage(EGLDisplay dpy,
const sp<GraphicBuffer>& graphicBuffer, const Rect& crop) {
EGLClientBuffer cbuf =
static_cast<EGLClientBuffer>(graphicBuffer->getNativeBuffer());
EGLint attrs[] = {
EGL_IMAGE_PRESERVED_KHR, EGL_TRUE,
EGL_IMAGE_CROP_LEFT_ANDROID, crop.left,
EGL_IMAGE_CROP_TOP_ANDROID, crop.top,
EGL_IMAGE_CROP_RIGHT_ANDROID, crop.right,
EGL_IMAGE_CROP_BOTTOM_ANDROID, crop.bottom,
EGL_NONE,
};
if (!crop.isValid()) {
// No crop rect to set, so terminate the attrib array before the crop.
attrs[2] = EGL_NONE;
} else if (!isEglImageCroppable(crop)) {
// The crop rect is not at the origin, so we can't set the crop on the
// EGLImage because that's not allowed by the EGL_ANDROID_image_crop
// extension. In the future we can add a layered extension that
// removes this restriction if there is hardware that can support it.
attrs[2] = EGL_NONE;
}
eglInitialize(dpy, 0, 0);
EGLImageKHR image = eglCreateImageKHR(dpy, EGL_NO_CONTEXT,
EGL_NATIVE_BUFFER_ANDROID, cbuf, attrs);
if (image == EGL_NO_IMAGE_KHR) {
EGLint error = eglGetError();
ALOGE("error creating EGLImage: %#x", error);
eglTerminate(dpy);
}
return image;
}
}; // namespace android
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