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-rw-r--r--cmds/screencap/screencap.cpp25
-rw-r--r--include/surfaceflinger/ISurfaceComposer.h3
-rw-r--r--include/surfaceflinger/SurfaceComposerClient.h30
-rw-r--r--libs/surfaceflinger_client/ISurfaceComposer.cpp10
-rw-r--r--libs/surfaceflinger_client/SurfaceComposerClient.cpp50
-rw-r--r--services/surfaceflinger/Layer.cpp11
-rw-r--r--services/surfaceflinger/Layer.h1
-rw-r--r--services/surfaceflinger/LayerBase.cpp6
-rw-r--r--services/surfaceflinger/LayerBase.h1
-rw-r--r--services/surfaceflinger/LayerBuffer.cpp6
-rw-r--r--services/surfaceflinger/LayerBuffer.h1
-rw-r--r--services/surfaceflinger/SurfaceFlinger.cpp202
-rw-r--r--services/surfaceflinger/SurfaceFlinger.h9
-rw-r--r--services/surfaceflinger/tests/screencap/screencap.cpp2
14 files changed, 249 insertions, 108 deletions
diff --git a/cmds/screencap/screencap.cpp b/cmds/screencap/screencap.cpp
index 6ce5b86..bc5e10d 100644
--- a/cmds/screencap/screencap.cpp
+++ b/cmds/screencap/screencap.cpp
@@ -17,32 +17,21 @@
#include <unistd.h>
#include <fcntl.h>
-#include <utils/Log.h>
-
-#include <binder/IPCThreadState.h>
-#include <binder/ProcessState.h>
-#include <binder/IServiceManager.h>
-
#include <binder/IMemory.h>
-#include <surfaceflinger/ISurfaceComposer.h>
+#include <surfaceflinger/SurfaceComposerClient.h>
using namespace android;
int main(int argc, char** argv)
{
- const String16 name("SurfaceFlinger");
- sp<ISurfaceComposer> composer;
- if (getService(name, &composer) != NO_ERROR)
- return 0;
-
- sp<IMemoryHeap> heap;
- uint32_t w, h;
- PixelFormat f;
- status_t err = composer->captureScreen(0, &heap, &w, &h, &f);
- if (err != NO_ERROR)
+ ScreenshotClient screenshot;
+ if (screenshot.update() != NO_ERROR)
return 0;
- uint8_t* base = (uint8_t*)heap->getBase();
+ void const* base = screenshot.getPixels();
+ uint32_t w = screenshot.getWidth();
+ uint32_t h = screenshot.getHeight();
+ uint32_t f = screenshot.getFormat();
int fd = dup(STDOUT_FILENO);
write(fd, &w, 4);
write(fd, &h, 4);
diff --git a/include/surfaceflinger/ISurfaceComposer.h b/include/surfaceflinger/ISurfaceComposer.h
index 76307b2..6533600 100644
--- a/include/surfaceflinger/ISurfaceComposer.h
+++ b/include/surfaceflinger/ISurfaceComposer.h
@@ -115,7 +115,8 @@ public:
*/
virtual status_t captureScreen(DisplayID dpy,
sp<IMemoryHeap>* heap,
- uint32_t* width, uint32_t* height, PixelFormat* format) = 0;
+ uint32_t* width, uint32_t* height, PixelFormat* format,
+ uint32_t reqWidth, uint32_t reqHeight) = 0;
/* Signal surfaceflinger that there might be some work to do
* This is an ASYNCHRONOUS call.
diff --git a/include/surfaceflinger/SurfaceComposerClient.h b/include/surfaceflinger/SurfaceComposerClient.h
index 8773d71..a80832d 100644
--- a/include/surfaceflinger/SurfaceComposerClient.h
+++ b/include/surfaceflinger/SurfaceComposerClient.h
@@ -170,6 +170,36 @@ private:
};
// ---------------------------------------------------------------------------
+
+class ScreenshotClient
+{
+ sp<IMemoryHeap> mHeap;
+ uint32_t mWidth;
+ uint32_t mHeight;
+ PixelFormat mFormat;
+public:
+ ScreenshotClient();
+
+ // frees the previous screenshot and capture a new one
+ status_t update();
+ status_t update(uint32_t reqWidth, uint32_t reqHeight);
+
+ // release memory occupied by the screenshot
+ void release();
+
+ // pixels are valid until this object is freed or
+ // release() or update() is called
+ void const* getPixels() const;
+
+ uint32_t getWidth() const;
+ uint32_t getHeight() const;
+ PixelFormat getFormat() const;
+ uint32_t getStride() const;
+ // size of allocated memory in bytes
+ size_t getSize() const;
+};
+
+// ---------------------------------------------------------------------------
}; // namespace android
#endif // ANDROID_SF_SURFACE_COMPOSER_CLIENT_H
diff --git a/libs/surfaceflinger_client/ISurfaceComposer.cpp b/libs/surfaceflinger_client/ISurfaceComposer.cpp
index 040060e..d676f5e 100644
--- a/libs/surfaceflinger_client/ISurfaceComposer.cpp
+++ b/libs/surfaceflinger_client/ISurfaceComposer.cpp
@@ -126,11 +126,14 @@ public:
virtual status_t captureScreen(DisplayID dpy,
sp<IMemoryHeap>* heap,
- uint32_t* width, uint32_t* height, PixelFormat* format)
+ uint32_t* width, uint32_t* height, PixelFormat* format,
+ uint32_t reqWidth, uint32_t reqHeight)
{
Parcel data, reply;
data.writeInterfaceToken(ISurfaceComposer::getInterfaceDescriptor());
data.writeInt32(dpy);
+ data.writeInt32(reqWidth);
+ data.writeInt32(reqHeight);
remote()->transact(BnSurfaceComposer::CAPTURE_SCREEN, data, &reply);
*heap = interface_cast<IMemoryHeap>(reply.readStrongBinder());
*width = reply.readInt32();
@@ -208,10 +211,13 @@ status_t BnSurfaceComposer::onTransact(
case CAPTURE_SCREEN: {
CHECK_INTERFACE(ISurfaceComposer, data, reply);
DisplayID dpy = data.readInt32();
+ uint32_t reqWidth = data.readInt32();
+ uint32_t reqHeight = data.readInt32();
sp<IMemoryHeap> heap;
uint32_t w, h;
PixelFormat f;
- status_t res = captureScreen(dpy, &heap, &w, &h, &f);
+ status_t res = captureScreen(dpy, &heap, &w, &h, &f,
+ reqWidth, reqHeight);
reply->writeStrongBinder(heap->asBinder());
reply->writeInt32(w);
reply->writeInt32(h);
diff --git a/libs/surfaceflinger_client/SurfaceComposerClient.cpp b/libs/surfaceflinger_client/SurfaceComposerClient.cpp
index 4096ac6..f270461 100644
--- a/libs/surfaceflinger_client/SurfaceComposerClient.cpp
+++ b/libs/surfaceflinger_client/SurfaceComposerClient.cpp
@@ -545,5 +545,55 @@ status_t SurfaceComposerClient::setFreezeTint(SurfaceID id, uint32_t tint)
}
// ----------------------------------------------------------------------------
+
+ScreenshotClient::ScreenshotClient()
+ : mWidth(0), mHeight(0), mFormat(PIXEL_FORMAT_NONE) {
+}
+
+status_t ScreenshotClient::update() {
+ sp<ISurfaceComposer> s(ComposerService::getComposerService());
+ if (s == NULL) return NO_INIT;
+ mHeap = 0;
+ return s->captureScreen(0, &mHeap,
+ &mWidth, &mHeight, &mFormat, 0, 0);
+}
+
+status_t ScreenshotClient::update(uint32_t reqWidth, uint32_t reqHeight) {
+ sp<ISurfaceComposer> s(ComposerService::getComposerService());
+ if (s == NULL) return NO_INIT;
+ mHeap = 0;
+ return s->captureScreen(0, &mHeap,
+ &mWidth, &mHeight, &mFormat, reqWidth, reqHeight);
+}
+
+void ScreenshotClient::release() {
+ mHeap = 0;
+}
+
+void const* ScreenshotClient::getPixels() const {
+ return mHeap->getBase();
+}
+
+uint32_t ScreenshotClient::getWidth() const {
+ return mWidth;
+}
+
+uint32_t ScreenshotClient::getHeight() const {
+ return mHeight;
+}
+
+PixelFormat ScreenshotClient::getFormat() const {
+ return mFormat;
+}
+
+uint32_t ScreenshotClient::getStride() const {
+ return mWidth;
+}
+
+size_t ScreenshotClient::getSize() const {
+ return mHeap->getSize();
+}
+
+// ----------------------------------------------------------------------------
}; // namespace android
diff --git a/services/surfaceflinger/Layer.cpp b/services/surfaceflinger/Layer.cpp
index 1b21a8d..fb76720 100644
--- a/services/surfaceflinger/Layer.cpp
+++ b/services/surfaceflinger/Layer.cpp
@@ -271,6 +271,17 @@ slowpath:
}
}
+void Layer::drawForSreenShot() const
+{
+ bool currentFixedSize = mFixedSize;
+ bool currentBlending = mNeedsBlending;
+ const_cast<Layer*>(this)->mFixedSize = false;
+ const_cast<Layer*>(this)->mFixedSize = true;
+ LayerBase::drawForSreenShot();
+ const_cast<Layer*>(this)->mFixedSize = currentFixedSize;
+ const_cast<Layer*>(this)->mNeedsBlending = currentBlending;
+}
+
void Layer::onDraw(const Region& clip) const
{
Texture tex(mBufferManager.getActiveTexture());
diff --git a/services/surfaceflinger/Layer.h b/services/surfaceflinger/Layer.h
index 188da6a..caa6d17 100644
--- a/services/surfaceflinger/Layer.h
+++ b/services/surfaceflinger/Layer.h
@@ -70,6 +70,7 @@ public:
// LayerBase interface
virtual void setGeometry(hwc_layer_t* hwcl);
virtual void setPerFrameData(hwc_layer_t* hwcl);
+ virtual void drawForSreenShot() const;
virtual void onDraw(const Region& clip) const;
virtual uint32_t doTransaction(uint32_t transactionFlags);
virtual void lockPageFlip(bool& recomputeVisibleRegions);
diff --git a/services/surfaceflinger/LayerBase.cpp b/services/surfaceflinger/LayerBase.cpp
index 3d049a7..14191cb 100644
--- a/services/surfaceflinger/LayerBase.cpp
+++ b/services/surfaceflinger/LayerBase.cpp
@@ -326,6 +326,12 @@ void LayerBase::draw(const Region& clip) const
onDraw(clip);
}
+void LayerBase::drawForSreenShot() const
+{
+ const DisplayHardware& hw(graphicPlane(0).displayHardware());
+ onDraw( Region(hw.bounds()) );
+}
+
void LayerBase::clearWithOpenGL(const Region& clip, GLclampf red,
GLclampf green, GLclampf blue,
GLclampf alpha) const
diff --git a/services/surfaceflinger/LayerBase.h b/services/surfaceflinger/LayerBase.h
index c66dc34..bdee05b 100644
--- a/services/surfaceflinger/LayerBase.h
+++ b/services/surfaceflinger/LayerBase.h
@@ -121,6 +121,7 @@ public:
* to perform the actual drawing.
*/
virtual void draw(const Region& clip) const;
+ virtual void drawForSreenShot() const;
/**
* onDraw - draws the surface.
diff --git a/services/surfaceflinger/LayerBuffer.cpp b/services/surfaceflinger/LayerBuffer.cpp
index fdf9abc..c060895 100644
--- a/services/surfaceflinger/LayerBuffer.cpp
+++ b/services/surfaceflinger/LayerBuffer.cpp
@@ -132,6 +132,12 @@ void LayerBuffer::unlockPageFlip(const Transform& planeTransform,
LayerBase::unlockPageFlip(planeTransform, outDirtyRegion);
}
+void LayerBuffer::drawForSreenShot() const
+{
+ const DisplayHardware& hw(graphicPlane(0).displayHardware());
+ clearWithOpenGL( Region(hw.bounds()) );
+}
+
void LayerBuffer::onDraw(const Region& clip) const
{
sp<Source> source(getSource());
diff --git a/services/surfaceflinger/LayerBuffer.h b/services/surfaceflinger/LayerBuffer.h
index 1c0bf83..fece858 100644
--- a/services/surfaceflinger/LayerBuffer.h
+++ b/services/surfaceflinger/LayerBuffer.h
@@ -64,6 +64,7 @@ public:
virtual sp<LayerBaseClient::Surface> createSurface() const;
virtual status_t ditch();
virtual void onDraw(const Region& clip) const;
+ virtual void drawForSreenShot() const;
virtual uint32_t doTransaction(uint32_t flags);
virtual void unlockPageFlip(const Transform& planeTransform, Region& outDirtyRegion);
diff --git a/services/surfaceflinger/SurfaceFlinger.cpp b/services/surfaceflinger/SurfaceFlinger.cpp
index 17b98a6..e6bdfd1 100644
--- a/services/surfaceflinger/SurfaceFlinger.cpp
+++ b/services/surfaceflinger/SurfaceFlinger.cpp
@@ -1653,9 +1653,117 @@ status_t SurfaceFlinger::onTransact(
// ---------------------------------------------------------------------------
+status_t SurfaceFlinger::captureScreenImplLocked(DisplayID dpy,
+ sp<IMemoryHeap>* heap,
+ uint32_t* w, uint32_t* h, PixelFormat* f,
+ uint32_t sw, uint32_t sh)
+{
+ status_t result = PERMISSION_DENIED;
+
+ // only one display supported for now
+ if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT))
+ return BAD_VALUE;
+
+ if (!GLExtensions::getInstance().haveFramebufferObject())
+ return INVALID_OPERATION;
+
+ // get screen geometry
+ const DisplayHardware& hw(graphicPlane(dpy).displayHardware());
+ const uint32_t hw_w = hw.getWidth();
+ const uint32_t hw_h = hw.getHeight();
+
+ if ((sw > hw_w) || (sh > hw_h))
+ return BAD_VALUE;
+
+ sw = (!sw) ? hw_w : sw;
+ sh = (!sh) ? hw_h : sh;
+ const size_t size = sw * sh * 4;
+
+ // make sure to clear all GL error flags
+ while ( glGetError() != GL_NO_ERROR ) ;
+
+ // create a FBO
+ GLuint name, tname;
+ glGenRenderbuffersOES(1, &tname);
+ glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname);
+ glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh);
+ glGenFramebuffersOES(1, &name);
+ glBindFramebufferOES(GL_FRAMEBUFFER_OES, name);
+ glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES,
+ GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname);
+
+ GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES);
+ if (status == GL_FRAMEBUFFER_COMPLETE_OES) {
+
+ // invert everything, b/c glReadPixel() below will invert the FB
+ glViewport(0, 0, sw, sh);
+ glMatrixMode(GL_PROJECTION);
+ glPushMatrix();
+ glLoadIdentity();
+ glOrthof(0, hw_w, 0, hw_h, 0, 1);
+ glMatrixMode(GL_MODELVIEW);
+
+ // redraw the screen entirely...
+ glClearColor(0,0,0,1);
+ glClear(GL_COLOR_BUFFER_BIT);
+ const Vector< sp<LayerBase> >& layers(mVisibleLayersSortedByZ);
+ const size_t count = layers.size();
+ for (size_t i=0 ; i<count ; ++i) {
+ const sp<LayerBase>& layer(layers[i]);
+ layer->drawForSreenShot();
+ }
+
+ // XXX: this is needed on tegra
+ glScissor(0, 0, sw, sh);
+
+ // check for errors and return screen capture
+ if (glGetError() != GL_NO_ERROR) {
+ // error while rendering
+ result = INVALID_OPERATION;
+ } else {
+ // allocate shared memory large enough to hold the
+ // screen capture
+ sp<MemoryHeapBase> base(
+ new MemoryHeapBase(size, 0, "screen-capture") );
+ void* const ptr = base->getBase();
+ if (ptr) {
+ // capture the screen with glReadPixels()
+ glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr);
+ if (glGetError() == GL_NO_ERROR) {
+ *heap = base;
+ *w = sw;
+ *h = sh;
+ *f = PIXEL_FORMAT_RGBA_8888;
+ result = NO_ERROR;
+ }
+ } else {
+ result = NO_MEMORY;
+ }
+ }
+
+ glEnable(GL_SCISSOR_TEST);
+ glViewport(0, 0, hw_w, hw_h);
+ glMatrixMode(GL_PROJECTION);
+ glPopMatrix();
+ glMatrixMode(GL_MODELVIEW);
+
+
+ } else {
+ result = BAD_VALUE;
+ }
+
+ // release FBO resources
+ glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0);
+ glDeleteRenderbuffersOES(1, &tname);
+ glDeleteFramebuffersOES(1, &name);
+ return result;
+}
+
+
status_t SurfaceFlinger::captureScreen(DisplayID dpy,
sp<IMemoryHeap>* heap,
- uint32_t* width, uint32_t* height, PixelFormat* format)
+ uint32_t* width, uint32_t* height, PixelFormat* format,
+ uint32_t sw, uint32_t sh)
{
// only one display supported for now
if (UNLIKELY(uint32_t(dpy) >= DISPLAY_COUNT))
@@ -1671,12 +1779,15 @@ status_t SurfaceFlinger::captureScreen(DisplayID dpy,
uint32_t* w;
uint32_t* h;
PixelFormat* f;
+ uint32_t sw;
+ uint32_t sh;
status_t result;
public:
MessageCaptureScreen(SurfaceFlinger* flinger, DisplayID dpy,
- sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f)
+ sp<IMemoryHeap>* heap, uint32_t* w, uint32_t* h, PixelFormat* f,
+ uint32_t sw, uint32_t sh)
: flinger(flinger), dpy(dpy),
- heap(heap), w(w), h(h), f(f), result(PERMISSION_DENIED)
+ heap(heap), w(w), h(h), f(f), sw(sw), sh(sh), result(PERMISSION_DENIED)
{
}
status_t getResult() const {
@@ -1689,94 +1800,15 @@ status_t SurfaceFlinger::captureScreen(DisplayID dpy,
if (flinger->mSecureFrameBuffer)
return true;
- // make sure to clear all GL error flags
- while ( glGetError() != GL_NO_ERROR ) ;
-
- // get screen geometry
- const DisplayHardware& hw(flinger->graphicPlane(dpy).displayHardware());
- const uint32_t sw = hw.getWidth();
- const uint32_t sh = hw.getHeight();
- const Region screenBounds(hw.bounds());
- const size_t size = sw * sh * 4;
-
- // create a FBO
- GLuint name, tname;
- glGenRenderbuffersOES(1, &tname);
- glBindRenderbufferOES(GL_RENDERBUFFER_OES, tname);
- glRenderbufferStorageOES(GL_RENDERBUFFER_OES, GL_RGBA8_OES, sw, sh);
- glGenFramebuffersOES(1, &name);
- glBindFramebufferOES(GL_FRAMEBUFFER_OES, name);
- glFramebufferRenderbufferOES(GL_FRAMEBUFFER_OES,
- GL_COLOR_ATTACHMENT0_OES, GL_RENDERBUFFER_OES, tname);
-
- GLenum status = glCheckFramebufferStatusOES(GL_FRAMEBUFFER_OES);
- if (status == GL_FRAMEBUFFER_COMPLETE_OES) {
-
- // invert everything, b/c glReadPixel() below will invert the FB
- glMatrixMode(GL_PROJECTION);
- glPushMatrix();
- glLoadIdentity();
- glOrthof(0, sw, 0, sh, 0, 1);
- glMatrixMode(GL_MODELVIEW);
-
- // redraw the screen entirely...
- glClearColor(0,0,0,1);
- glClear(GL_COLOR_BUFFER_BIT);
- const Vector< sp<LayerBase> >& layers(
- flinger->mVisibleLayersSortedByZ);
- const size_t count = layers.size();
- for (size_t i=0 ; i<count ; ++i) {
- const sp<LayerBase>& layer(layers[i]);
- if (!strcmp(layer->getTypeId(), "LayerBuffer")) {
- // we cannot render LayerBuffer because it doens't
- // use OpenGL, and won't show-up in the FBO.
- continue;
- }
- layer->draw(screenBounds);
- }
-
- glMatrixMode(GL_PROJECTION);
- glPopMatrix();
- glMatrixMode(GL_MODELVIEW);
-
- // check for errors and return screen capture
- if (glGetError() != GL_NO_ERROR) {
- // error while rendering
- result = INVALID_OPERATION;
- } else {
- // allocate shared memory large enough to hold the
- // screen capture
- sp<MemoryHeapBase> base(
- new MemoryHeapBase(size, 0, "screen-capture") );
- void* const ptr = base->getBase();
- if (ptr) {
- // capture the screen with glReadPixels()
- glReadPixels(0, 0, sw, sh, GL_RGBA, GL_UNSIGNED_BYTE, ptr);
- if (glGetError() == GL_NO_ERROR) {
- *heap = base;
- *w = sw;
- *h = sh;
- *f = PIXEL_FORMAT_RGBA_8888;
- result = NO_ERROR;
- }
- } else {
- result = NO_MEMORY;
- }
- }
- } else {
- result = BAD_VALUE;
- }
+ result = flinger->captureScreenImplLocked(dpy,
+ heap, w, h, f, sw, sh);
- // release FBO resources
- glBindFramebufferOES(GL_FRAMEBUFFER_OES, 0);
- glDeleteRenderbuffersOES(1, &tname);
- glDeleteFramebuffersOES(1, &name);
return true;
}
};
sp<MessageBase> msg = new MessageCaptureScreen(this,
- dpy, heap, width, height, format);
+ dpy, heap, width, height, format, sw, sh);
status_t res = postMessageSync(msg);
if (res == NO_ERROR) {
res = static_cast<MessageCaptureScreen*>( msg.get() )->getResult();
diff --git a/services/surfaceflinger/SurfaceFlinger.h b/services/surfaceflinger/SurfaceFlinger.h
index 6e9ecbd..732e57e 100644
--- a/services/surfaceflinger/SurfaceFlinger.h
+++ b/services/surfaceflinger/SurfaceFlinger.h
@@ -197,7 +197,9 @@ public:
sp<IMemoryHeap>* heap,
uint32_t* width,
uint32_t* height,
- PixelFormat* format);
+ PixelFormat* format,
+ uint32_t reqWidth,
+ uint32_t reqHeight);
void screenReleased(DisplayID dpy);
void screenAcquired(DisplayID dpy);
@@ -319,6 +321,11 @@ private:
void commitTransaction();
+ status_t captureScreenImplLocked(DisplayID dpy,
+ sp<IMemoryHeap>* heap,
+ uint32_t* width, uint32_t* height, PixelFormat* format,
+ uint32_t reqWidth = 0, uint32_t reqHeight = 0);
+
friend class FreezeLock;
sp<FreezeLock> getFreezeLock() const;
inline void incFreezeCount() {
diff --git a/services/surfaceflinger/tests/screencap/screencap.cpp b/services/surfaceflinger/tests/screencap/screencap.cpp
index 9e893f4..6cf1504 100644
--- a/services/surfaceflinger/tests/screencap/screencap.cpp
+++ b/services/surfaceflinger/tests/screencap/screencap.cpp
@@ -42,7 +42,7 @@ int main(int argc, char** argv)
sp<IMemoryHeap> heap;
uint32_t w, h;
PixelFormat f;
- status_t err = composer->captureScreen(0, &heap, &w, &h, &f);
+ status_t err = composer->captureScreen(0, &heap, &w, &h, &f, 0, 0);
if (err != NO_ERROR) {
fprintf(stderr, "screen capture failed: %s\n", strerror(-err));
exit(0);
generated by cgit v1.1 at 2025-07-03 02:18:18 +0000