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Bring back support for glReadPixels screenshot path 

Squashed commit of the following:

commit 012d3fe41d1d6cd38a0858b59145e9a4447641fa
Author: Hashcode <hashcode0f@gmail.com>
Date:   Sun Dec 8 19:36:50 2013 +0000

    sf: Always use opengles for screen capture

    Go back to the usage of GRALLOC_USAGE_HW_TEXTURE and GRALLOC_USAGE_HW_RENDERER
    in captureScreenImplLocked regardless of useReadPixels value

    This fixes the EGL_NO_IMAGE_KHR error returned from
    eglCreateImageKHR (blank images returned from screenshot path)

    Change-Id: I62fe90a081607b9e89c67f3dcfd34c84efc89d35

commit 4866ddf98ac98d8e22a1cd6a21894bb17f274588
Author: Ricardo Cerqueira <cyanogenmod@cerqueira.org>
Date:   Thu Oct 31 03:53:39 2013 +0000

    Revert "remove support for glReadPixels screenshot path"

    This reverts commit 3ca76f416b.

    Conflicts:
    	include/gui/ISurfaceComposer.h
    	libs/gui/ISurfaceComposer.cpp
    	libs/gui/SurfaceComposerClient.cpp
    	services/surfaceflinger/SurfaceFlinger.cpp
    	services/surfaceflinger/SurfaceFlinger.h

    Change-Id: I8c239e533757af770e418dbb198f5a86c736961f

Change-Id: I8c239e533757af770e418dbb198f5a86c736961f
This commit is contained in:
Pawit Pornkitprasan 2014-11-18 08:38:33 +07:00 committed by Gerrit Code Review
parent bcce313fea
commit fd1fb639a1
11 changed files with 114 additions and 46 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/gui/ISurfaceComposer.h
View File

@ -145,7 +145,8 @@ public:
Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
uint32_t minLayerZ, uint32_t maxLayerZ,
bool useIdentityTransform,
Rotation rotation = eRotateNone) = 0;
Rotation rotation = eRotateNone,
bool isCpuConsumer = false) = 0;
/* Clears the frame statistics for animations.
*

8
libs/gui/ISurfaceComposer.cpp
View File

@ -103,7 +103,8 @@ public:
Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
uint32_t minLayerZ, uint32_t maxLayerZ,
bool useIdentityTransform,
ISurfaceComposer::Rotation rotation)
ISurfaceComposer::Rotation rotation,
bool isCpuConsumer)
{
Parcel data, reply;
data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
@ -116,6 +117,7 @@ public:
data.writeUint32(maxLayerZ);
data.writeInt32(static_cast<int32_t>(useIdentityTransform));
data.writeInt32(static_cast<int32_t>(rotation));
data.writeInt32(isCpuConsumer);
remote()->transact(BnSurfaceComposer::CAPTURE_SCREEN, data, &reply);
return reply.readInt32();
}
@ -361,11 +363,13 @@ status_t BnSurfaceComposer::onTransact(
uint32_t maxLayerZ = data.readUint32();
bool useIdentityTransform = static_cast<bool>(data.readInt32());
int32_t rotation = data.readInt32();
bool isCpuConsumer = data.readInt32();
status_t res = captureScreen(display, producer,
sourceCrop, reqWidth, reqHeight, minLayerZ, maxLayerZ,
useIdentityTransform,
static_cast<ISurfaceComposer::Rotation>(rotation));
static_cast<ISurfaceComposer::Rotation>(rotation),
isCpuConsumer);
reply->writeInt32(res);
return NO_ERROR;
}

5
libs/gui/SurfaceComposerClient.cpp
View File

@ -691,7 +691,8 @@ status_t ScreenshotClient::capture(
sp<ISurfaceComposer> s(ComposerService::getComposerService());
if (s == NULL) return NO_INIT;
return s->captureScreen(display, producer, sourceCrop,
reqWidth, reqHeight, minLayerZ, maxLayerZ, useIdentityTransform);
reqWidth, reqHeight, minLayerZ, maxLayerZ, useIdentityTransform,
ISurfaceComposer::eRotateNone, false);
}
ScreenshotClient::ScreenshotClient()
@ -729,7 +730,7 @@ status_t ScreenshotClient::update(const sp<IBinder>& display,
status_t err = s->captureScreen(display, mProducer, sourceCrop,
reqWidth, reqHeight, minLayerZ, maxLayerZ, useIdentityTransform,
static_cast<ISurfaceComposer::Rotation>(rotation));
static_cast<ISurfaceComposer::Rotation>(rotation), true);
if (err == NO_ERROR) {
err = mCpuConsumer->lockNextBuffer(&mBuffer);

42
services/surfaceflinger/RenderEngine/GLES11RenderEngine.cpp
View File

@ -210,28 +210,46 @@ void GLES11RenderEngine::disableBlending() {
}
void GLES11RenderEngine::bindImageAsFramebuffer(EGLImageKHR image,
uint32_t* texName, uint32_t* fbName, uint32_t* status) {
uint32_t* texName, uint32_t* fbName, uint32_t* status,
bool useReadPixels, int reqWidth, int reqHeight) {
GLuint tname, name;
// turn our EGLImage into a texture
glGenTextures(1, &tname);
glBindTexture(GL_TEXTURE_2D, tname);
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image);
if (!useReadPixels) {
// turn our EGLImage into a texture
glGenTextures(1, &tname);
glBindTexture(GL_TEXTURE_2D, tname);
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image);
// create a Framebuffer Object to render into
glGenFramebuffersOES(1, &name);
glBindFramebufferOES(GL_FRAMEBUFFER_OES, name);
glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES,
GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0);
// create a Framebuffer Object to render into
glGenFramebuffersOES(1, &name);
glBindFramebufferOES(GL_FRAMEBUFFER_OES, name);
glFramebufferTexture2DOES(GL_FRAMEBUFFER_OES,
GL_COLOR_ATTACHMENT0_OES, GL_TEXTURE_2D, tname, 0);
} else {
// since we're going to use glReadPixels() anyways,
// use an intermediate renderbuffer instead
glGenRenderbuffersOES(1, &tname);
glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname);
glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, reqWidth, reqHeight);
// create a FBO to render into
glGenFramebuffersOES(1, &name);
glBindFramebufferOES(GL_FRAMEBUFFER_OES, name);
glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES, GL_COLOR_ATTACHMENT0_OES,
GL_RENDERBUFFER_OES, tname);
}
*status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES);
*texName = tname;
*fbName = name;
}
void GLES11RenderEngine::unbindFramebuffer(uint32_t texName, uint32_t fbName) {
void GLES11RenderEngine::unbindFramebuffer(uint32_t texName, uint32_t fbName,
bool useReadPixels) {
glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0);
glDeleteFramebuffersOES(1, &fbName);
glDeleteTextures(1, &texName);
if (!useReadPixels)
glDeleteTextures(1, &texName);
else
glDeleteRenderbuffersOES(1, &texName);
}
void GLES11RenderEngine::setupFillWithColor(float r, float g, float b, float a) {

5
services/surfaceflinger/RenderEngine/GLES11RenderEngine.h
View File

@ -40,8 +40,9 @@ class GLES11RenderEngine : public RenderEngine {
GLint mMaxTextureSize;
virtual void bindImageAsFramebuffer(EGLImageKHR image,
uint32_t* texName, uint32_t* fbName, uint32_t* status);
virtual void unbindFramebuffer(uint32_t texName, uint32_t fbName);
uint32_t* texName, uint32_t* fbName, uint32_t* status, bool useReadPixels,
int reqWidth, int reqHeight);
virtual void unbindFramebuffer(uint32_t texName, uint32_t fbName, bool useReadPixels);
public:
GLES11RenderEngine();

39
services/surfaceflinger/RenderEngine/GLES20RenderEngine.cpp
View File

@ -185,27 +185,44 @@ void GLES20RenderEngine::disableBlending() {
void GLES20RenderEngine::bindImageAsFramebuffer(EGLImageKHR image,
uint32_t* texName, uint32_t* fbName, uint32_t* status) {
uint32_t* texName, uint32_t* fbName, uint32_t* status,
bool useReadPixels, int reqWidth, int reqHeight) {
GLuint tname, name;
// turn our EGLImage into a texture
glGenTextures(1, &tname);
glBindTexture(GL_TEXTURE_2D, tname);
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image);
if (!useReadPixels) {
// turn our EGLImage into a texture
glGenTextures(1, &tname);
glBindTexture(GL_TEXTURE_2D, tname);
glEGLImageTargetTexture2DOES(GL_TEXTURE_2D, (GLeglImageOES)image);
// create a Framebuffer Object to render into
glGenFramebuffers(1, &name);
glBindFramebuffer(GL_FRAMEBUFFER, name);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tname, 0);
// create a Framebuffer Object to render into
glGenFramebuffers(1, &name);
glBindFramebuffer(GL_FRAMEBUFFER, name);
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, tname, 0);
} else {
// since we're going to use glReadPixels() anyways,
// use an intermediate renderbuffer instead
glGenRenderbuffers(1, &tname);
glBindRenderbuffer(GL_RENDERBUFFER, tname);
glRenderbufferStorage(GL_RENDERBUFFER, GL_RGBA8_OES, reqWidth, reqHeight);
// create a FBO to render into
glGenFramebuffers(1, &name);
glBindFramebuffer(GL_FRAMEBUFFER, name);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_RENDERBUFFER, tname);
}
*status = glCheckFramebufferStatus(GL_FRAMEBUFFER);
*texName = tname;
*fbName = name;
}
void GLES20RenderEngine::unbindFramebuffer(uint32_t texName, uint32_t fbName) {
void GLES20RenderEngine::unbindFramebuffer(uint32_t texName, uint32_t fbName,
bool useReadPixels) {
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glDeleteFramebuffers(1, &fbName);
glDeleteTextures(1, &texName);
if (!useReadPixels)
glDeleteTextures(1, &texName);
else
glDeleteRenderbuffers(1, &texName);
}
void GLES20RenderEngine::setupFillWithColor(float r, float g, float b, float a) {

5
services/surfaceflinger/RenderEngine/GLES20RenderEngine.h
View File

@ -55,8 +55,9 @@ class GLES20RenderEngine : public RenderEngine {
Vector<Group> mGroupStack;
virtual void bindImageAsFramebuffer(EGLImageKHR image,
uint32_t* texName, uint32_t* fbName, uint32_t* status);
virtual void unbindFramebuffer(uint32_t texName, uint32_t fbName);
uint32_t* texName, uint32_t* fbName, uint32_t* status,
bool useReadPixels, int reqWidth, int reqHeight);
virtual void unbindFramebuffer(uint32_t texName, uint32_t fbName, bool useReadPixels);
public:
GLES20RenderEngine();

8
services/surfaceflinger/RenderEngine/RenderEngine.cpp
View File

@ -262,9 +262,11 @@ void RenderEngine::dump(String8& result) {
// ---------------------------------------------------------------------------
RenderEngine::BindImageAsFramebuffer::BindImageAsFramebuffer(
RenderEngine& engine, EGLImageKHR image) : mEngine(engine)
RenderEngine& engine, EGLImageKHR image, bool useReadPixels,
int reqWidth, int reqHeight) : mEngine(engine), mUseReadPixels(useReadPixels)
{
mEngine.bindImageAsFramebuffer(image, &mTexName, &mFbName, &mStatus);
mEngine.bindImageAsFramebuffer(image, &mTexName, &mFbName, &mStatus,
useReadPixels, reqWidth, reqHeight);
ALOGE_IF(mStatus != GL_FRAMEBUFFER_COMPLETE_OES,
"glCheckFramebufferStatusOES error %d", mStatus);
@ -272,7 +274,7 @@ RenderEngine::BindImageAsFramebuffer::BindImageAsFramebuffer(
RenderEngine::BindImageAsFramebuffer::~BindImageAsFramebuffer() {
// back to main framebuffer
mEngine.unbindFramebuffer(mTexName, mFbName);
mEngine.unbindFramebuffer(mTexName, mFbName, mUseReadPixels);
}
status_t RenderEngine::BindImageAsFramebuffer::getStatus() const {

11
services/surfaceflinger/RenderEngine/RenderEngine.h
View File

@ -51,8 +51,11 @@ class RenderEngine {
EGLContext mEGLContext;
void setEGLHandles(EGLConfig config, EGLContext ctxt);
virtual void bindImageAsFramebuffer(EGLImageKHR image, uint32_t* texName, uint32_t* fbName, uint32_t* status) = 0;
virtual void unbindFramebuffer(uint32_t texName, uint32_t fbName) = 0;
virtual void bindImageAsFramebuffer(EGLImageKHR image, uint32_t* texName,
uint32_t* fbName, uint32_t* status, bool useReadPixels, int reqWidth,
int reqHeight) = 0;
virtual void unbindFramebuffer(uint32_t texName, uint32_t fbName,
bool useReadPixels) = 0;
protected:
RenderEngine();
@ -83,8 +86,10 @@ public:
RenderEngine& mEngine;
uint32_t mTexName, mFbName;
uint32_t mStatus;
bool mUseReadPixels;
public:
BindImageAsFramebuffer(RenderEngine& engine, EGLImageKHR image);
BindImageAsFramebuffer(RenderEngine& engine, EGLImageKHR image,
bool useReadPixels, int reqWidth, int reqHeight);
~BindImageAsFramebuffer();
int getStatus() const;
};

28
services/surfaceflinger/SurfaceFlinger.cpp
View File

@ -3160,7 +3160,8 @@ status_t SurfaceFlinger::captureScreen(const sp<IBinder>& display,
const sp<IGraphicBufferProducer>& producer,
Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
uint32_t minLayerZ, uint32_t maxLayerZ,
bool useIdentityTransform, ISurfaceComposer::Rotation rotation) {
bool useIdentityTransform, ISurfaceComposer::Rotation rotation,
bool useReadPixels) {
if (CC_UNLIKELY(display == 0))
return BAD_VALUE;
@ -3210,6 +3211,7 @@ status_t SurfaceFlinger::captureScreen(const sp<IBinder>& display,
uint32_t minLayerZ,maxLayerZ;
bool useIdentityTransform;
Transform::orientation_flags rotation;
bool useReadPixels;
status_t result;
public:
MessageCaptureScreen(SurfaceFlinger* flinger,
@ -3217,12 +3219,14 @@ status_t SurfaceFlinger::captureScreen(const sp<IBinder>& display,
const sp<IGraphicBufferProducer>& producer,
Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
uint32_t minLayerZ, uint32_t maxLayerZ,
bool useIdentityTransform, Transform::orientation_flags rotation)
bool useIdentityTransform, Transform::orientation_flags rotation,
bool useReadPixels)
: flinger(flinger), display(display), producer(producer),
sourceCrop(sourceCrop), reqWidth(reqWidth), reqHeight(reqHeight),
minLayerZ(minLayerZ), maxLayerZ(maxLayerZ),
useIdentityTransform(useIdentityTransform),
rotation(rotation),
useReadPixels(useReadPixels),
result(PERMISSION_DENIED)
{
}
@ -3232,9 +3236,10 @@ status_t SurfaceFlinger::captureScreen(const sp<IBinder>& display,
virtual bool handler() {
Mutex::Autolock _l(flinger->mStateLock);
sp<const DisplayDevice> hw(flinger->getDisplayDevice(display));
bool useReadPixels = this->useReadPixels && !flinger->mGpuToCpuSupported;
result = flinger->captureScreenImplLocked(hw, producer,
sourceCrop, reqWidth, reqHeight, minLayerZ, maxLayerZ,
useIdentityTransform, rotation);
useIdentityTransform, rotation, useReadPixels);
static_cast<GraphicProducerWrapper*>(IInterface::asBinder(producer).get())->exit(result);
return true;
}
@ -3257,7 +3262,7 @@ status_t SurfaceFlinger::captureScreen(const sp<IBinder>& display,
sp<MessageBase> msg = new MessageCaptureScreen(this,
display, IGraphicBufferProducer::asInterface( wrapper ),
sourceCrop, reqWidth, reqHeight, minLayerZ, maxLayerZ,
useIdentityTransform, rotationFlags);
useIdentityTransform, rotationFlags, useReadPixels);
status_t res = postMessageAsync(msg);
if (res == NO_ERROR) {
@ -3347,7 +3352,8 @@ status_t SurfaceFlinger::captureScreenImplLocked(
const sp<IGraphicBufferProducer>& producer,
Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
uint32_t minLayerZ, uint32_t maxLayerZ,
bool useIdentityTransform, Transform::orientation_flags rotation)
bool useIdentityTransform, Transform::orientation_flags rotation,
bool useReadPixels)
{
ATRACE_CALL();
@ -3399,7 +3405,8 @@ status_t SurfaceFlinger::captureScreenImplLocked(
if (image != EGL_NO_IMAGE_KHR) {
// this binds the given EGLImage as a framebuffer for the
// duration of this scope.
RenderEngine::BindImageAsFramebuffer imageBond(getRenderEngine(), image);
RenderEngine::BindImageAsFramebuffer imageBond(getRenderEngine(), image,
useReadPixels, reqWidth, reqHeight);
if (imageBond.getStatus() == NO_ERROR) {
// this will in fact render into our dequeued buffer
// via an FBO, which means we didn't have to create
@ -3446,6 +3453,15 @@ status_t SurfaceFlinger::captureScreenImplLocked(
ALOGW("captureScreen: error creating EGL fence: %#x", eglGetError());
}
}
if (useReadPixels) {
sp<GraphicBuffer> buf = static_cast<GraphicBuffer*>(buffer);
void* vaddr;
if (buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, &vaddr) == NO_ERROR) {
getRenderEngine().readPixels(0, 0, buffer->stride, reqHeight,
(uint32_t *)vaddr);
buf->unlock();
}
}
if (DEBUG_SCREENSHOTS) {
uint32_t* pixels = new uint32_t[reqWidth*reqHeight];
getRenderEngine().readPixels(0, 0, reqWidth, reqHeight, pixels);

6
services/surfaceflinger/SurfaceFlinger.h
View File

@ -212,7 +212,8 @@ private:
const sp<IGraphicBufferProducer>& producer,
Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
uint32_t minLayerZ, uint32_t maxLayerZ,
bool useIdentityTransform, ISurfaceComposer::Rotation rotation);
bool useIdentityTransform, ISurfaceComposer::Rotation rotation,
bool isCpuConsumer);
virtual status_t getDisplayStats(const sp<IBinder>& display,
DisplayStatInfo* stats);
virtual status_t getDisplayConfigs(const sp<IBinder>& display,
@ -366,7 +367,8 @@ private:
const sp<IGraphicBufferProducer>& producer,
Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
uint32_t minLayerZ, uint32_t maxLayerZ,
bool useIdentityTransform, Transform::orientation_flags rotation);
bool useIdentityTransform, Transform::orientation_flags rotation,
bool useReadPixels);
/* ------------------------------------------------------------------------
* EGL