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-rw-r--r--libs/gui/SurfaceTexture.cpp505
1 files changed, 0 insertions, 505 deletions
diff --git a/libs/gui/SurfaceTexture.cpp b/libs/gui/SurfaceTexture.cpp
deleted file mode 100644
index b42aa34d7652..000000000000
--- a/libs/gui/SurfaceTexture.cpp
+++ /dev/null
@@ -1,505 +0,0 @@
-/*
- * 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 "SurfaceTexture"
-#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/SurfaceTexture.h>
-
-#include <private/gui/ComposerService.h>
-
-#include <utils/Log.h>
-#include <utils/String8.h>
-#include <utils/Trace.h>
-
-// This compile option makes SurfaceTexture use the EGL_KHR_fence_sync extension
-// to synchronize access to the buffers. It will cause dequeueBuffer to stall,
-// waiting for the GL reads for the buffer being dequeued to complete before
-// allowing the buffer to be dequeued.
-#ifdef USE_FENCE_SYNC
-#ifdef ALLOW_DEQUEUE_CURRENT_BUFFER
-#error "USE_FENCE_SYNC and ALLOW_DEQUEUE_CURRENT_BUFFER are incompatible"
-#endif
-#endif
-
-// Macros for including the SurfaceTexture 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__)
-
-namespace android {
-
-// 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]);
-
-// Get an ID that's unique within this process.
-static int32_t createProcessUniqueId() {
- static volatile int32_t globalCounter = 0;
- return android_atomic_inc(&globalCounter);
-}
-
-SurfaceTexture::SurfaceTexture(GLuint tex, bool allowSynchronousMode,
- GLenum texTarget, bool useFenceSync) :
- BufferQueue(allowSynchronousMode),
- mCurrentTransform(0),
- mCurrentTimestamp(0),
- mTexName(tex),
-#ifdef USE_FENCE_SYNC
- mUseFenceSync(useFenceSync),
-#else
- mUseFenceSync(false),
-#endif
- mTexTarget(texTarget),
- mAbandoned(false),
- mCurrentTexture(BufferQueue::INVALID_BUFFER_SLOT)
-{
- // Choose a name using the PID and a process-unique ID.
- mName = String8::format("unnamed-%d-%d", getpid(), createProcessUniqueId());
- BufferQueue::setConsumerName(mName);
-
- ST_LOGV("SurfaceTexture");
- memcpy(mCurrentTransformMatrix, mtxIdentity,
- sizeof(mCurrentTransformMatrix));
-}
-
-SurfaceTexture::~SurfaceTexture() {
- ST_LOGV("~SurfaceTexture");
- abandon();
-}
-
-status_t SurfaceTexture::setBufferCountServer(int bufferCount) {
- Mutex::Autolock lock(mMutex);
- return BufferQueue::setBufferCountServer(bufferCount);
-}
-
-
-status_t SurfaceTexture::setDefaultBufferSize(uint32_t w, uint32_t h)
-{
- return BufferQueue::setDefaultBufferSize(w, h);
-}
-
-status_t SurfaceTexture::updateTexImage() {
- ATRACE_CALL();
- ST_LOGV("updateTexImage");
- Mutex::Autolock lock(mMutex);
-
- if (mAbandoned) {
- ST_LOGE("calling updateTexImage() on an abandoned SurfaceTexture");
- return NO_INIT;
- }
-
- BufferItem item;
-
- // In asynchronous mode the list is guaranteed to be one buffer
- // deep, while in synchronous mode we use the oldest buffer.
- if (acquire(&item) == NO_ERROR) {
- int buf = item.mBuf;
- // This buffer was newly allocated, so we need to clean up on our side
- if (item.mGraphicBuffer != NULL) {
- mEGLSlots[buf].mGraphicBuffer = 0;
- if (mEGLSlots[buf].mEglImage != EGL_NO_IMAGE_KHR) {
- eglDestroyImageKHR(mEGLSlots[buf].mEglDisplay,
- mEGLSlots[buf].mEglImage);
- mEGLSlots[buf].mEglImage = EGL_NO_IMAGE_KHR;
- mEGLSlots[buf].mEglDisplay = EGL_NO_DISPLAY;
- }
- mEGLSlots[buf].mGraphicBuffer = item.mGraphicBuffer;
- }
-
- // Update the GL texture object.
- EGLImageKHR image = mEGLSlots[buf].mEglImage;
- EGLDisplay dpy = eglGetCurrentDisplay();
- if (image == EGL_NO_IMAGE_KHR) {
- if (item.mGraphicBuffer == 0) {
- ST_LOGE("buffer at slot %d is null", buf);
- return BAD_VALUE;
- }
- image = createImage(dpy, item.mGraphicBuffer);
- mEGLSlots[buf].mEglImage = image;
- mEGLSlots[buf].mEglDisplay = dpy;
- if (image == EGL_NO_IMAGE_KHR) {
- // NOTE: if dpy was invalid, createImage() is guaranteed to
- // fail. so we'd end up here.
- return -EINVAL;
- }
- }
-
- GLint error;
- while ((error = glGetError()) != GL_NO_ERROR) {
- ST_LOGW("updateTexImage: clearing GL error: %#04x", error);
- }
-
- glBindTexture(mTexTarget, mTexName);
- glEGLImageTargetTexture2DOES(mTexTarget, (GLeglImageOES)image);
-
- bool failed = false;
- while ((error = glGetError()) != GL_NO_ERROR) {
- ST_LOGE("error binding external texture image %p (slot %d): %#04x",
- image, buf, error);
- failed = true;
- }
- if (failed) {
- releaseBuffer(buf, mEGLSlots[buf].mEglDisplay,
- mEGLSlots[buf].mFence);
- return -EINVAL;
- }
-
- if (mCurrentTexture != INVALID_BUFFER_SLOT) {
- if (mUseFenceSync) {
- EGLSyncKHR fence = eglCreateSyncKHR(dpy, EGL_SYNC_FENCE_KHR,
- NULL);
- if (fence == EGL_NO_SYNC_KHR) {
- ALOGE("updateTexImage: error creating fence: %#x",
- eglGetError());
- releaseBuffer(buf, mEGLSlots[buf].mEglDisplay,
- mEGLSlots[buf].mFence);
- return -EINVAL;
- }
- glFlush();
- mEGLSlots[mCurrentTexture].mFence = fence;
- }
- }
-
- ST_LOGV("updateTexImage: (slot=%d buf=%p) -> (slot=%d buf=%p)",
- mCurrentTexture,
- mCurrentTextureBuf != NULL ? mCurrentTextureBuf->handle : 0,
- buf, item.mGraphicBuffer != NULL ? item.mGraphicBuffer->handle : 0);
-
- // release old buffer
- releaseBuffer(mCurrentTexture,
- mEGLSlots[mCurrentTexture].mEglDisplay,
- mEGLSlots[mCurrentTexture].mFence);
-
- // Update the SurfaceTexture state.
- mCurrentTexture = buf;
- mCurrentTextureBuf = mEGLSlots[buf].mGraphicBuffer;
- mCurrentCrop = item.mCrop;
- mCurrentTransform = item.mTransform;
- mCurrentScalingMode = item.mScalingMode;
- mCurrentTimestamp = item.mTimestamp;
- computeCurrentTransformMatrix();
-
- // Now that we've passed the point at which failures can happen,
- // it's safe to remove the buffer from the front of the queue.
-
- } else {
- // We always bind the texture even if we don't update its contents.
- glBindTexture(mTexTarget, mTexName);
- }
-
- return OK;
-}
-
-bool SurfaceTexture::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 SurfaceTexture::getCurrentTextureTarget() const {
- return mTexTarget;
-}
-
-void SurfaceTexture::getTransformMatrix(float mtx[16]) {
- Mutex::Autolock lock(mMutex);
- memcpy(mtx, mCurrentTransformMatrix, sizeof(mCurrentTransformMatrix));
-}
-
-void SurfaceTexture::computeCurrentTransformMatrix() {
- ST_LOGV("computeCurrentTransformMatrix");
-
- 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);
- float tx, ty, sx, sy;
- if (!mCurrentCrop.isEmpty()) {
- // In order to prevent bilinear sampling at the of the crop rectangle we
- // may need to shrink it by 2 texels in each direction. Normally this
- // would just need to take 1/2 a texel off each end, but because the
- // chroma channels will likely be subsampled we need to chop off a whole
- // texel. This will cause artifacts if someone does nearest sampling
- // with 1:1 pixel:texel ratio, but it's impossible to simultaneously
- // accomodate the bilinear and nearest sampling uses.
- //
- // If nearest sampling turns out to be a desirable usage of these
- // textures then we could add the ability to switch a SurfaceTexture to
- // nearest-mode. Preferably, however, the image producers (video
- // decoder, camera, etc.) would simply not use a crop rectangle (or at
- // least not tell the framework about it) so that the GPU can do the
- // correct edge behavior.
- int xshrink = 0, yshrink = 0;
- if (mCurrentCrop.left > 0) {
- tx = float(mCurrentCrop.left + 1) / float(buf->getWidth());
- xshrink++;
- } else {
- tx = 0.0f;
- }
- if (mCurrentCrop.right < int32_t(buf->getWidth())) {
- xshrink++;
- }
- if (mCurrentCrop.bottom < int32_t(buf->getHeight())) {
- ty = (float(buf->getHeight() - mCurrentCrop.bottom) + 1.0f) /
- float(buf->getHeight());
- yshrink++;
- } else {
- ty = 0.0f;
- }
- if (mCurrentCrop.top > 0) {
- yshrink++;
- }
- sx = float(mCurrentCrop.width() - xshrink) / float(buf->getWidth());
- sy = float(mCurrentCrop.height() - yshrink) / float(buf->getHeight());
- } else {
- tx = 0.0f;
- ty = 0.0f;
- sx = 1.0f;
- sy = 1.0f;
- }
- 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 SurfaceTexture 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 SurfaceTexture::getTimestamp() {
- ST_LOGV("getTimestamp");
- Mutex::Autolock lock(mMutex);
- return mCurrentTimestamp;
-}
-
-void SurfaceTexture::setFrameAvailableListener(
- const sp<FrameAvailableListener>& listener) {
- ST_LOGV("setFrameAvailableListener");
- Mutex::Autolock lock(mMutex);
- BufferQueue::setFrameAvailableListener(listener);
-}
-
-EGLImageKHR SurfaceTexture::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> SurfaceTexture::getCurrentBuffer() const {
- Mutex::Autolock lock(mMutex);
- return mCurrentTextureBuf;
-}
-
-Rect SurfaceTexture::getCurrentCrop() const {
- Mutex::Autolock lock(mMutex);
- return mCurrentCrop;
-}
-
-uint32_t SurfaceTexture::getCurrentTransform() const {
- Mutex::Autolock lock(mMutex);
- return mCurrentTransform;
-}
-
-uint32_t SurfaceTexture::getCurrentScalingMode() const {
- Mutex::Autolock lock(mMutex);
- return mCurrentScalingMode;
-}
-
-bool SurfaceTexture::isSynchronousMode() const {
- Mutex::Autolock lock(mMutex);
- return BufferQueue::isSynchronousMode();
-}
-
-void SurfaceTexture::abandon() {
- Mutex::Autolock lock(mMutex);
- mAbandoned = true;
- mCurrentTextureBuf.clear();
-
- // destroy all egl buffers
- for (int i =0; i < NUM_BUFFER_SLOTS; i++) {
- mEGLSlots[i].mGraphicBuffer = 0;
- if (mEGLSlots[i].mEglImage != EGL_NO_IMAGE_KHR) {
- eglDestroyImageKHR(mEGLSlots[i].mEglDisplay,
- mEGLSlots[i].mEglImage);
- mEGLSlots[i].mEglImage = EGL_NO_IMAGE_KHR;
- mEGLSlots[i].mEglDisplay = EGL_NO_DISPLAY;
- }
- }
-
- // disconnect from the BufferQueue
- BufferQueue::consumerDisconnect();
-}
-
-void SurfaceTexture::setName(const String8& name) {
- Mutex::Autolock _l(mMutex);
- mName = name;
- BufferQueue::setConsumerName(name);
-}
-
-void SurfaceTexture::dump(String8& result) const
-{
- char buffer[1024];
- dump(result, "", buffer, 1024);
-}
-
-void SurfaceTexture::dump(String8& result, const char* prefix,
- char* buffer, size_t SIZE) const
-{
- Mutex::Autolock _l(mMutex);
- snprintf(buffer, SIZE, "%smTexName=%d\n", prefix, mTexName);
- result.append(buffer);
-
- snprintf(buffer, SIZE,
- "%snext : {crop=[%d,%d,%d,%d], transform=0x%02x, current=%d}\n"
- ,prefix, mCurrentCrop.left,
- mCurrentCrop.top, mCurrentCrop.right, mCurrentCrop.bottom,
- mCurrentTransform, mCurrentTexture
- );
- result.append(buffer);
-
-
- BufferQueue::dump(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
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