Rename ISurfaceTexture and SurfaceTexture
The C++ class names don't match what the classes do, so rename
ISurfaceTexture to IGraphicBufferProducer, and SurfaceTexture to
GLConsumer.
Bug 7736700
Change-Id: Ia03e468888025b5cae3c0ee1995434515dbea387
diff --git a/libs/gui/GLConsumer.cpp b/libs/gui/GLConsumer.cpp
new file mode 100644
index 0000000..ba23f9e
--- /dev/null
+++ b/libs/gui/GLConsumer.cpp
@@ -0,0 +1,961 @@
+/*
+ * 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 <hardware/hardware.h>
+
+#include <gui/IGraphicBufferAlloc.h>
+#include <gui/ISurfaceComposer.h>
+#include <gui/SurfaceComposerClient.h>
+#include <gui/GLConsumer.h>
+
+#include <private/gui/ComposerService.h>
+
+#include <utils/Log.h>
+#include <utils/String8.h>
+#include <utils/Trace.h>
+
+namespace android {
+
+// This compile option makes GLConsumer use the
+// EGL_ANDROID_native_fence_sync extension to create Android native fences to
+// signal when all GLES reads for a given buffer have completed. It is not
+// compatible with using the EGL_KHR_fence_sync extension for the same
+// purpose.
+#ifdef USE_NATIVE_FENCE_SYNC
+#ifdef USE_FENCE_SYNC
+#error "USE_NATIVE_FENCE_SYNC and USE_FENCE_SYNC are incompatible"
+#endif
+const bool GLConsumer::sUseNativeFenceSync = true;
+#else
+const bool GLConsumer::sUseNativeFenceSync = false;
+#endif
+
+// This compile option makes GLConsumer use the EGL_ANDROID_sync_wait
+// extension to insert server-side waits into the GLES command stream. This
+// feature requires the EGL_ANDROID_native_fence_sync and
+// EGL_ANDROID_wait_sync extensions.
+#ifdef USE_WAIT_SYNC
+static const bool useWaitSync = true;
+#else
+static const bool useWaitSync = false;
+#endif
+
+// Macros for including the GLConsumer name in log messages
+#define ST_LOGV(x, ...) ALOGV("[%s] "x, mName.string(), ##__VA_ARGS__)
+#define ST_LOGD(x, ...) ALOGD("[%s] "x, mName.string(), ##__VA_ARGS__)
+#define ST_LOGI(x, ...) ALOGI("[%s] "x, mName.string(), ##__VA_ARGS__)
+#define ST_LOGW(x, ...) ALOGW("[%s] "x, mName.string(), ##__VA_ARGS__)
+#define ST_LOGE(x, ...) ALOGE("[%s] "x, mName.string(), ##__VA_ARGS__)
+
+// 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 float mtxRot180[16] = {
+ -1, 0, 0, 0,
+ 0, -1, 0, 0,
+ 0, 0, 1, 0,
+ 1, 1, 0, 1,
+};
+static float mtxRot270[16] = {
+ 0, -1, 0, 0,
+ 1, 0, 0, 0,
+ 0, 0, 1, 0,
+ 0, 1, 0, 1,
+};
+
+static void mtxMul(float out[16], const float a[16], const float b[16]);
+
+
+GLConsumer::GLConsumer(GLuint tex, bool allowSynchronousMode,
+ GLenum texTarget, bool useFenceSync, const sp<BufferQueue> &bufferQueue) :
+ ConsumerBase(bufferQueue == 0 ? new BufferQueue(allowSynchronousMode) : bufferQueue),
+ mCurrentTransform(0),
+ mCurrentTimestamp(0),
+ mFilteringEnabled(true),
+ mTexName(tex),
+#ifdef USE_FENCE_SYNC
+ mUseFenceSync(useFenceSync),
+#else
+ mUseFenceSync(false),
+#endif
+ mTexTarget(texTarget),
+ mEglDisplay(EGL_NO_DISPLAY),
+ mEglContext(EGL_NO_CONTEXT),
+ mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT),
+ mAttached(true)
+{
+ ST_LOGV("GLConsumer");
+
+ memcpy(mCurrentTransformMatrix, mtxIdentity,
+ sizeof(mCurrentTransformMatrix));
+
+ mBufferQueue->setConsumerUsageBits(DEFAULT_USAGE_FLAGS);
+}
+
+status_t GLConsumer::setDefaultMaxBufferCount(int bufferCount) {
+ Mutex::Autolock lock(mMutex);
+ return mBufferQueue->setDefaultMaxBufferCount(bufferCount);
+}
+
+
+status_t GLConsumer::setDefaultBufferSize(uint32_t w, uint32_t h)
+{
+ Mutex::Autolock lock(mMutex);
+ mDefaultWidth = w;
+ mDefaultHeight = h;
+ return mBufferQueue->setDefaultBufferSize(w, h);
+}
+
+status_t GLConsumer::updateTexImage() {
+ ATRACE_CALL();
+ ST_LOGV("updateTexImage");
+ Mutex::Autolock lock(mMutex);
+
+ if (mAbandoned) {
+ ST_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;
+ }
+
+ BufferQueue::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);
+ if (err != NO_ERROR) {
+ if (err == BufferQueue::NO_BUFFER_AVAILABLE) {
+ // We always bind the texture even if we don't update its contents.
+ ST_LOGV("updateTexImage: no buffers were available");
+ glBindTexture(mTexTarget, mTexName);
+ err = NO_ERROR;
+ } else {
+ ST_LOGE("updateTexImage: acquire failed: %s (%d)",
+ strerror(-err), err);
+ }
+ return err;
+ }
+
+ // Release the previous buffer.
+ err = releaseAndUpdateLocked(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::acquireBufferLocked(BufferQueue::BufferItem *item) {
+ status_t err = ConsumerBase::acquireBufferLocked(item);
+ if (err != NO_ERROR) {
+ return err;
+ }
+
+ int slot = item->mBuf;
+ if (item->mGraphicBuffer != NULL) {
+ // This buffer has not been acquired before, so we must assume
+ // that any EGLImage in mEglSlots is stale.
+ if (mEglSlots[slot].mEglImage != EGL_NO_IMAGE_KHR) {
+ if (!eglDestroyImageKHR(mEglDisplay, mEglSlots[slot].mEglImage)) {
+ ST_LOGW("acquireBufferLocked: eglDestroyImageKHR failed for slot=%d",
+ slot);
+ // keep going
+ }
+ mEglSlots[slot].mEglImage = EGL_NO_IMAGE_KHR;
+ }
+ }
+
+ return NO_ERROR;
+}
+
+status_t GLConsumer::releaseBufferLocked(int buf, EGLDisplay display,
+ EGLSyncKHR eglFence) {
+ status_t err = ConsumerBase::releaseBufferLocked(buf, display, eglFence);
+
+ mEglSlots[buf].mEglFence = EGL_NO_SYNC_KHR;
+
+ return err;
+}
+
+status_t GLConsumer::releaseAndUpdateLocked(const BufferQueue::BufferItem& item)
+{
+ status_t err = NO_ERROR;
+
+ if (!mAttached) {
+ ST_LOGE("releaseAndUpdate: GLConsumer is not attached to an OpenGL "
+ "ES context");
+ return INVALID_OPERATION;
+ }
+
+ // Confirm state.
+ err = checkAndUpdateEglStateLocked();
+ if (err != NO_ERROR) {
+ return err;
+ }
+
+ int buf = item.mBuf;
+
+ // If the mEglSlot entry is empty, create an EGLImage 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), if we destroyed the
+ // EGLImage when detaching from a context but the buffer has not been
+ // re-allocated.
+ if (mEglSlots[buf].mEglImage == EGL_NO_IMAGE_KHR) {
+ EGLImageKHR image = createImage(mEglDisplay, mSlots[buf].mGraphicBuffer);
+ if (image == EGL_NO_IMAGE_KHR) {
+ ST_LOGW("releaseAndUpdate: unable to createImage on display=%p slot=%d",
+ mEglDisplay, buf);
+ return UNKNOWN_ERROR;
+ }
+ mEglSlots[buf].mEglImage = image;
+ }
+
+ // 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.
+ releaseBufferLocked(buf, mEglDisplay, EGL_NO_SYNC_KHR);
+ return err;
+ }
+
+ ST_LOGV("releaseAndUpdate: (slot=%d buf=%p) -> (slot=%d buf=%p)",
+ mCurrentTexture,
+ mCurrentTextureBuf != NULL ? mCurrentTextureBuf->handle : 0,
+ buf, mSlots[buf].mGraphicBuffer->handle);
+
+ // release old buffer
+ if (mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) {
+ status_t status = releaseBufferLocked(mCurrentTexture, mEglDisplay,
+ mEglSlots[mCurrentTexture].mEglFence);
+ if (status != NO_ERROR && status != BufferQueue::STALE_BUFFER_SLOT) {
+ ST_LOGE("releaseAndUpdate: failed to release buffer: %s (%d)",
+ strerror(-status), status);
+ err = status;
+ // keep going, with error raised [?]
+ }
+ }
+
+ // Update the GLConsumer state.
+ mCurrentTexture = buf;
+ mCurrentTextureBuf = mSlots[buf].mGraphicBuffer;
+ mCurrentCrop = item.mCrop;
+ mCurrentTransform = item.mTransform;
+ mCurrentScalingMode = item.mScalingMode;
+ mCurrentTimestamp = item.mTimestamp;
+ mCurrentFence = item.mFence;
+
+ computeCurrentTransformMatrixLocked();
+
+ return err;
+}
+
+status_t GLConsumer::bindTextureImageLocked() {
+ if (mEglDisplay == EGL_NO_DISPLAY) {
+ ALOGE("bindTextureImage: invalid display");
+ return INVALID_OPERATION;
+ }
+
+ GLint error;
+ while ((error = glGetError()) != GL_NO_ERROR) {
+ ST_LOGW("bindTextureImage: clearing GL error: %#04x", error);
+ }
+
+ glBindTexture(mTexTarget, mTexName);
+ if (mCurrentTexture == BufferQueue::INVALID_BUFFER_SLOT) {
+ if (mCurrentTextureBuf == NULL) {
+ ST_LOGE("bindTextureImage: no currently-bound texture");
+ return NO_INIT;
+ }
+ status_t err = bindUnslottedBufferLocked(mEglDisplay);
+ if (err != NO_ERROR) {
+ return err;
+ }
+ } else {
+ EGLImageKHR image = mEglSlots[mCurrentTexture].mEglImage;
+
+ glEGLImageTargetTexture2DOES(mTexTarget, (GLeglImageOES)image);
+
+ while ((error = glGetError()) != GL_NO_ERROR) {
+ ST_LOGE("bindTextureImage: error binding external texture image %p"
+ ": %#04x", image, error);
+ return UNKNOWN_ERROR;
+ }
+ }
+
+ // Wait for the new buffer to be ready.
+ return doGLFenceWaitLocked();
+
+}
+
+status_t GLConsumer::checkAndUpdateEglStateLocked() {
+ EGLDisplay dpy = eglGetCurrentDisplay();
+ EGLContext ctx = eglGetCurrentContext();
+
+ if ((mEglDisplay != dpy && mEglDisplay != EGL_NO_DISPLAY) ||
+ dpy == EGL_NO_DISPLAY) {
+ ST_LOGE("checkAndUpdateEglState: invalid current EGLDisplay");
+ return INVALID_OPERATION;
+ }
+
+ if ((mEglContext != ctx && mEglContext != EGL_NO_CONTEXT) ||
+ ctx == EGL_NO_CONTEXT) {
+ ST_LOGE("checkAndUpdateEglState: invalid current EGLContext");
+ return INVALID_OPERATION;
+ }
+
+ mEglDisplay = dpy;
+ mEglContext = ctx;
+ return NO_ERROR;
+}
+
+void GLConsumer::setReleaseFence(int fenceFd) {
+ sp<Fence> fence(new Fence(fenceFd));
+ if (fenceFd == -1 || mCurrentTexture == BufferQueue::INVALID_BUFFER_SLOT)
+ return;
+ status_t err = addReleaseFence(mCurrentTexture, fence);
+ if (err != OK) {
+ ST_LOGE("setReleaseFence: failed to add the fence: %s (%d)",
+ strerror(-err), err);
+ }
+}
+
+status_t GLConsumer::detachFromContext() {
+ ATRACE_CALL();
+ ST_LOGV("detachFromContext");
+ Mutex::Autolock lock(mMutex);
+
+ if (mAbandoned) {
+ ST_LOGE("detachFromContext: abandoned GLConsumer");
+ return NO_INIT;
+ }
+
+ if (!mAttached) {
+ ST_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) {
+ ST_LOGE("detachFromContext: invalid current EGLDisplay");
+ return INVALID_OPERATION;
+ }
+
+ if (mEglContext != ctx && mEglContext != EGL_NO_CONTEXT) {
+ ST_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);
+ }
+
+ // Because we're giving up the EGLDisplay we need to free all the EGLImages
+ // that are associated with it. They'll be recreated when the
+ // GLConsumer gets attached to a new OpenGL ES context (and thus gets a
+ // new EGLDisplay).
+ for (int i =0; i < BufferQueue::NUM_BUFFER_SLOTS; i++) {
+ EGLImageKHR img = mEglSlots[i].mEglImage;
+ if (img != EGL_NO_IMAGE_KHR) {
+ eglDestroyImageKHR(mEglDisplay, img);
+ mEglSlots[i].mEglImage = EGL_NO_IMAGE_KHR;
+ }
+ }
+
+ mEglDisplay = EGL_NO_DISPLAY;
+ mEglContext = EGL_NO_CONTEXT;
+ mAttached = false;
+
+ return OK;
+}
+
+status_t GLConsumer::attachToContext(GLuint tex) {
+ ATRACE_CALL();
+ ST_LOGV("attachToContext");
+ Mutex::Autolock lock(mMutex);
+
+ if (mAbandoned) {
+ ST_LOGE("attachToContext: abandoned GLConsumer");
+ return NO_INIT;
+ }
+
+ if (mAttached) {
+ ST_LOGE("attachToContext: GLConsumer is already attached to a "
+ "context");
+ return INVALID_OPERATION;
+ }
+
+ EGLDisplay dpy = eglGetCurrentDisplay();
+ EGLContext ctx = eglGetCurrentContext();
+
+ if (dpy == EGL_NO_DISPLAY) {
+ ST_LOGE("attachToContext: invalid current EGLDisplay");
+ return INVALID_OPERATION;
+ }
+
+ if (ctx == EGL_NO_CONTEXT) {
+ ST_LOGE("attachToContext: invalid current EGLContext");
+ return INVALID_OPERATION;
+ }
+
+ // We need to bind the texture regardless of whether there's a current
+ // buffer.
+ glBindTexture(mTexTarget, tex);
+
+ if (mCurrentTextureBuf != NULL) {
+ // The EGLImageKHR that was associated with the slot was destroyed when
+ // the GLConsumer was detached from the old context, so we need to
+ // recreate it here.
+ status_t err = bindUnslottedBufferLocked(dpy);
+ if (err != NO_ERROR) {
+ return err;
+ }
+ }
+
+ mEglDisplay = dpy;
+ mEglContext = ctx;
+ mTexName = tex;
+ mAttached = true;
+
+ return OK;
+}
+
+status_t GLConsumer::bindUnslottedBufferLocked(EGLDisplay dpy) {
+ ST_LOGV("bindUnslottedBuffer ct=%d ctb=%p",
+ mCurrentTexture, mCurrentTextureBuf.get());
+
+ // Create a temporary EGLImageKHR.
+ EGLImageKHR image = createImage(dpy, mCurrentTextureBuf);
+ if (image == EGL_NO_IMAGE_KHR) {
+ return UNKNOWN_ERROR;
+ }
+
+ // Attach the current buffer to the GL texture.
+ glEGLImageTargetTexture2DOES(mTexTarget, (GLeglImageOES)image);
+
+ GLint error;
+ status_t err = OK;
+ while ((error = glGetError()) != GL_NO_ERROR) {
+ ST_LOGE("bindUnslottedBuffer: error binding external texture image %p "
+ "(slot %d): %#04x", image, mCurrentTexture, error);
+ err = UNKNOWN_ERROR;
+ }
+
+ // We destroy the EGLImageKHR here because the current buffer may no
+ // longer be associated with one of the buffer slots, so we have
+ // nowhere to to store it. If the buffer is still associated with a
+ // slot then another EGLImageKHR will be created next time that buffer
+ // gets acquired in updateTexImage.
+ eglDestroyImageKHR(dpy, image);
+
+ return err;
+}
+
+
+status_t GLConsumer::syncForReleaseLocked(EGLDisplay dpy) {
+ ST_LOGV("syncForReleaseLocked");
+
+ if (mCurrentTexture != BufferQueue::INVALID_BUFFER_SLOT) {
+ if (sUseNativeFenceSync) {
+ EGLSyncKHR sync = eglCreateSyncKHR(dpy,
+ EGL_SYNC_NATIVE_FENCE_ANDROID, NULL);
+ if (sync == EGL_NO_SYNC_KHR) {
+ ST_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) {
+ ST_LOGE("syncForReleaseLocked: error dup'ing native fence "
+ "fd: %#x", eglGetError());
+ return UNKNOWN_ERROR;
+ }
+ sp<Fence> fence(new Fence(fenceFd));
+ status_t err = addReleaseFenceLocked(mCurrentTexture, fence);
+ if (err != OK) {
+ ST_LOGE("syncForReleaseLocked: error adding release fence: "
+ "%s (%d)", strerror(-err), err);
+ return err;
+ }
+ } else if (mUseFenceSync) {
+ 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) {
+ ST_LOGE("syncForReleaseLocked: error waiting for previous "
+ "fence: %#x", eglGetError());
+ return UNKNOWN_ERROR;
+ } else if (result == EGL_TIMEOUT_EXPIRED_KHR) {
+ ST_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) {
+ ST_LOGE("syncForReleaseLocked: error creating fence: %#x",
+ eglGetError());
+ return UNKNOWN_ERROR;
+ }
+ glFlush();
+ mEglSlots[mCurrentTexture].mEglFence = fence;
+ }
+ }
+
+ return OK;
+}
+
+bool GLConsumer::isExternalFormat(uint32_t 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;
+}
+
+GLenum 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) {
+ ST_LOGE("setFilteringEnabled: GLConsumer is abandoned!");
+ return;
+ }
+ bool needsRecompute = mFilteringEnabled != enabled;
+ mFilteringEnabled = enabled;
+
+ if (needsRecompute && mCurrentTextureBuf==NULL) {
+ ST_LOGD("setFilteringEnabled called with mCurrentTextureBuf == NULL");
+ }
+
+ if (needsRecompute && mCurrentTextureBuf != NULL) {
+ computeCurrentTransformMatrixLocked();
+ }
+}
+
+void GLConsumer::computeCurrentTransformMatrixLocked() {
+ ST_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(mCurrentTextureBuf);
+
+ if (buf == NULL) {
+ ST_LOGD("computeCurrentTransformMatrixLocked: mCurrentTextureBuf is NULL");
+ }
+
+ 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:
+ case PIXEL_FORMAT_RGBA_5551:
+ case PIXEL_FORMAT_RGBA_4444:
+ // 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,
+ };
+
+ float mtxBeforeFlipV[16];
+ mtxMul(mtxBeforeFlipV, crop, xform);
+
+ // 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() {
+ ST_LOGV("getTimestamp");
+ Mutex::Autolock lock(mMutex);
+ return mCurrentTimestamp;
+}
+
+EGLImageKHR GLConsumer::createImage(EGLDisplay dpy,
+ const sp<GraphicBuffer>& graphicBuffer) {
+ EGLClientBuffer cbuf = (EGLClientBuffer)graphicBuffer->getNativeBuffer();
+ EGLint attrs[] = {
+ EGL_IMAGE_PRESERVED_KHR, EGL_TRUE,
+ EGL_NONE,
+ };
+ EGLImageKHR image = eglCreateImageKHR(dpy, EGL_NO_CONTEXT,
+ EGL_NATIVE_BUFFER_ANDROID, cbuf, attrs);
+ if (image == EGL_NO_IMAGE_KHR) {
+ EGLint error = eglGetError();
+ ST_LOGE("error creating EGLImage: %#x", error);
+ }
+ return image;
+}
+
+sp<GraphicBuffer> GLConsumer::getCurrentBuffer() const {
+ Mutex::Autolock lock(mMutex);
+ return mCurrentTextureBuf;
+}
+
+Rect GLConsumer::getCurrentCrop() const {
+ Mutex::Autolock lock(mMutex);
+
+ Rect outCrop = mCurrentCrop;
+ if (mCurrentScalingMode == NATIVE_WINDOW_SCALING_MODE_SCALE_CROP) {
+ int32_t newWidth = mCurrentCrop.width();
+ int32_t newHeight = mCurrentCrop.height();
+
+ if (newWidth * mDefaultHeight > newHeight * mDefaultWidth) {
+ newWidth = newHeight * mDefaultWidth / mDefaultHeight;
+ ST_LOGV("too wide: newWidth = %d", newWidth);
+ } else if (newWidth * mDefaultHeight < newHeight * mDefaultWidth) {
+ newHeight = newWidth * mDefaultHeight / mDefaultWidth;
+ ST_LOGV("too tall: newHeight = %d", newHeight);
+ }
+
+ // The crop is too wide
+ if (newWidth < mCurrentCrop.width()) {
+ int32_t dw = (newWidth - mCurrentCrop.width())/2;
+ outCrop.left -=dw;
+ outCrop.right += dw;
+ // The crop is too tall
+ } else if (newHeight < mCurrentCrop.height()) {
+ int32_t dh = (newHeight - mCurrentCrop.height())/2;
+ outCrop.top -= dh;
+ outCrop.bottom += dh;
+ }
+
+ ST_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) {
+ ST_LOGE("doGLFenceWait: invalid current EGLDisplay");
+ return INVALID_OPERATION;
+ }
+
+ if (mEglContext != ctx || mEglContext == EGL_NO_CONTEXT) {
+ ST_LOGE("doGLFenceWait: invalid current EGLContext");
+ return INVALID_OPERATION;
+ }
+
+ if (mCurrentFence != NULL) {
+ if (useWaitSync) {
+ // Create an EGLSyncKHR from the current fence.
+ int fenceFd = mCurrentFence->dup();
+ if (fenceFd == -1) {
+ ST_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);
+ ST_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.
+ eglWaitSyncANDROID(dpy, sync, 0);
+ EGLint eglErr = eglGetError();
+ eglDestroySyncKHR(dpy, sync);
+ if (eglErr != EGL_SUCCESS) {
+ ST_LOGE("doGLFenceWait: error waiting for EGL fence: %#x",
+ eglErr);
+ return UNKNOWN_ERROR;
+ }
+ } else {
+ status_t err = mCurrentFence->waitForever(1000,
+ "GLConsumer::doGLFenceWaitLocked");
+ if (err != NO_ERROR) {
+ ST_LOGE("doGLFenceWait: error waiting for fence: %d", err);
+ return err;
+ }
+ }
+ }
+
+ return NO_ERROR;
+}
+
+bool GLConsumer::isSynchronousMode() const {
+ Mutex::Autolock lock(mMutex);
+ return mBufferQueue->isSynchronousMode();
+}
+
+void GLConsumer::freeBufferLocked(int slotIndex) {
+ ST_LOGV("freeBufferLocked: slotIndex=%d", slotIndex);
+ if (slotIndex == mCurrentTexture) {
+ mCurrentTexture = BufferQueue::INVALID_BUFFER_SLOT;
+ }
+ EGLImageKHR img = mEglSlots[slotIndex].mEglImage;
+ if (img != EGL_NO_IMAGE_KHR) {
+ ST_LOGV("destroying EGLImage dpy=%p img=%p", mEglDisplay, img);
+ eglDestroyImageKHR(mEglDisplay, img);
+ }
+ mEglSlots[slotIndex].mEglImage = EGL_NO_IMAGE_KHR;
+ ConsumerBase::freeBufferLocked(slotIndex);
+}
+
+void GLConsumer::abandonLocked() {
+ ST_LOGV("abandonLocked");
+ mCurrentTextureBuf.clear();
+ ConsumerBase::abandonLocked();
+}
+
+void GLConsumer::setName(const String8& name) {
+ Mutex::Autolock _l(mMutex);
+ mName = name;
+ mBufferQueue->setConsumerName(name);
+}
+
+status_t GLConsumer::setDefaultBufferFormat(uint32_t defaultFormat) {
+ Mutex::Autolock lock(mMutex);
+ return mBufferQueue->setDefaultBufferFormat(defaultFormat);
+}
+
+status_t GLConsumer::setConsumerUsageBits(uint32_t usage) {
+ Mutex::Autolock lock(mMutex);
+ usage |= DEFAULT_USAGE_FLAGS;
+ return mBufferQueue->setConsumerUsageBits(usage);
+}
+
+status_t GLConsumer::setTransformHint(uint32_t hint) {
+ Mutex::Autolock lock(mMutex);
+ return mBufferQueue->setTransformHint(hint);
+}
+
+// Used for refactoring BufferQueue from GLConsumer
+// Should not be in final interface once users of GLConsumer are clean up.
+status_t GLConsumer::setSynchronousMode(bool enabled) {
+ Mutex::Autolock lock(mMutex);
+ return mBufferQueue->setSynchronousMode(enabled);
+}
+
+void GLConsumer::dumpLocked(String8& result, const char* prefix,
+ char* buffer, size_t size) const
+{
+ snprintf(buffer, size,
+ "%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);
+ result.append(buffer);
+
+ ConsumerBase::dumpLocked(result, prefix, buffer, size);
+}
+
+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];
+}
+
+}; // namespace android