size_t ScreenshotClient::getSize() const {
return mBuffer.stride * mBuffer.height * bytesPerPixel(mBuffer.format);
}
void SpriteController::doUpdateSprites() {
// Collect information about sprite updates.
// Each sprite update record includes a reference to its associated sprite so we can
// be certain the sprites will not be deleted while this function runs. Sprites
// may invalidate themselves again during this time but we will handle those changes
// in the next iteration.
Vector<SpriteUpdate> updates;
size_t numSprites;
{ // acquire lock
AutoMutex _l(mLock);
numSprites = mLocked.invalidatedSprites.size();
for (size_t i = 0; i < numSprites; i++) {
const sp<SpriteImpl>& sprite = mLocked.invalidatedSprites.itemAt(i);
updates.push(SpriteUpdate(sprite, sprite->getStateLocked()));
sprite->resetDirtyLocked();
}
mLocked.invalidatedSprites.clear();
} // release lock
// Create missing surfaces.
bool surfaceChanged = false;
for (size_t i = 0; i < numSprites; i++) {
SpriteUpdate& update = updates.editItemAt(i);
if (update.state.surfaceControl == NULL && update.state.wantSurfaceVisible()) {
update.state.surfaceWidth = update.state.icon.bitmap.width();
update.state.surfaceHeight = update.state.icon.bitmap.height();
update.state.surfaceDrawn = false;
update.state.surfaceVisible = false;
update.state.surfaceControl = obtainSurface(
update.state.surfaceWidth, update.state.surfaceHeight);
if (update.state.surfaceControl != NULL) {
update.surfaceChanged = surfaceChanged = true;
}
}
}
// Resize sprites if needed, inside a global transaction.
bool haveGlobalTransaction = false;
for (size_t i = 0; i < numSprites; i++) {
SpriteUpdate& update = updates.editItemAt(i);
if (update.state.surfaceControl != NULL && update.state.wantSurfaceVisible()) {
int32_t desiredWidth = update.state.icon.bitmap.width();
int32_t desiredHeight = update.state.icon.bitmap.height();
if (update.state.surfaceWidth < desiredWidth
|| update.state.surfaceHeight < desiredHeight) {
if (!haveGlobalTransaction) {
SurfaceComposerClient::openGlobalTransaction();
haveGlobalTransaction = true;
}
status_t status = update.state.surfaceControl->setSize(desiredWidth, desiredHeight);
if (status) {
ALOGE("Error %d resizing sprite surface from %dx%d to %dx%d",
status, update.state.surfaceWidth, update.state.surfaceHeight,
desiredWidth, desiredHeight);
} else {
update.state.surfaceWidth = desiredWidth;
update.state.surfaceHeight = desiredHeight;
update.state.surfaceDrawn = false;
update.surfaceChanged = surfaceChanged = true;
if (update.state.surfaceVisible) {
status = update.state.surfaceControl->hide();
if (status) {
ALOGE("Error %d hiding sprite surface after resize.", status);
} else {
update.state.surfaceVisible = false;
}
}
}
}
}
}
if (haveGlobalTransaction) {
SurfaceComposerClient::closeGlobalTransaction();
}
// Redraw sprites if needed.
for (size_t i = 0; i < numSprites; i++) {
SpriteUpdate& update = updates.editItemAt(i);
if ((update.state.dirty & DIRTY_BITMAP) && update.state.surfaceDrawn) {
update.state.surfaceDrawn = false;
update.surfaceChanged = surfaceChanged = true;
}
if (update.state.surfaceControl != NULL && !update.state.surfaceDrawn
&& update.state.wantSurfaceVisible()) {
sp<Surface> surface = update.state.surfaceControl->getSurface();
ANativeWindow_Buffer outBuffer;
status_t status = surface->lock(&outBuffer, NULL);
if (status) {
ALOGE("Error %d locking sprite surface before drawing.", status);
} else {
SkBitmap surfaceBitmap;
ssize_t bpr = outBuffer.stride * bytesPerPixel(outBuffer.format);
surfaceBitmap.installPixels(SkImageInfo::MakeN32Premul(outBuffer.width, outBuffer.height),
outBuffer.bits, bpr);
SkCanvas surfaceCanvas(surfaceBitmap);
SkPaint paint;
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
surfaceCanvas.drawBitmap(update.state.icon.bitmap, 0, 0, &paint);
if (outBuffer.width > update.state.icon.bitmap.width()) {
paint.setColor(0); // transparent fill color
surfaceCanvas.drawRectCoords(update.state.icon.bitmap.width(), 0,
outBuffer.width, update.state.icon.bitmap.height(), paint);
}
if (outBuffer.height > update.state.icon.bitmap.height()) {
paint.setColor(0); // transparent fill color
surfaceCanvas.drawRectCoords(0, update.state.icon.bitmap.height(),
outBuffer.width, outBuffer.height, paint);
}
status = surface->unlockAndPost();
if (status) {
ALOGE("Error %d unlocking and posting sprite surface after drawing.", status);
} else {
update.state.surfaceDrawn = true;
update.surfaceChanged = surfaceChanged = true;
}
}
}
}
// Set sprite surface properties and make them visible.
bool haveTransaction = false;
for (size_t i = 0; i < numSprites; i++) {
SpriteUpdate& update = updates.editItemAt(i);
bool wantSurfaceVisibleAndDrawn = update.state.wantSurfaceVisible()
&& update.state.surfaceDrawn;
bool becomingVisible = wantSurfaceVisibleAndDrawn && !update.state.surfaceVisible;
bool becomingHidden = !wantSurfaceVisibleAndDrawn && update.state.surfaceVisible;
if (update.state.surfaceControl != NULL && (becomingVisible || becomingHidden
|| (wantSurfaceVisibleAndDrawn && (update.state.dirty & (DIRTY_ALPHA
| DIRTY_POSITION | DIRTY_TRANSFORMATION_MATRIX | DIRTY_LAYER
| DIRTY_VISIBILITY | DIRTY_HOTSPOT))))) {
status_t status;
if (!haveTransaction) {
SurfaceComposerClient::openGlobalTransaction();
haveTransaction = true;
}
if (wantSurfaceVisibleAndDrawn
&& (becomingVisible || (update.state.dirty & DIRTY_ALPHA))) {
status = update.state.surfaceControl->setAlpha(update.state.alpha);
if (status) {
ALOGE("Error %d setting sprite surface alpha.", status);
}
}
if (wantSurfaceVisibleAndDrawn
&& (becomingVisible || (update.state.dirty & (DIRTY_POSITION
| DIRTY_HOTSPOT)))) {
status = update.state.surfaceControl->setPosition(
update.state.positionX - update.state.icon.hotSpotX,
update.state.positionY - update.state.icon.hotSpotY);
if (status) {
ALOGE("Error %d setting sprite surface position.", status);
}
}
if (wantSurfaceVisibleAndDrawn
&& (becomingVisible
|| (update.state.dirty & DIRTY_TRANSFORMATION_MATRIX))) {
status = update.state.surfaceControl->setMatrix(
update.state.transformationMatrix.dsdx,
update.state.transformationMatrix.dtdx,
update.state.transformationMatrix.dsdy,
update.state.transformationMatrix.dtdy);
if (status) {
ALOGE("Error %d setting sprite surface transformation matrix.", status);
}
}
int32_t surfaceLayer = mOverlayLayer + update.state.layer;
if (wantSurfaceVisibleAndDrawn
&& (becomingVisible || (update.state.dirty & DIRTY_LAYER))) {
status = update.state.surfaceControl->setLayer(surfaceLayer);
if (status) {
ALOGE("Error %d setting sprite surface layer.", status);
}
}
if (becomingVisible) {
status = update.state.surfaceControl->show();
if (status) {
ALOGE("Error %d showing sprite surface.", status);
} else {
update.state.surfaceVisible = true;
update.surfaceChanged = surfaceChanged = true;
}
} else if (becomingHidden) {
status = update.state.surfaceControl->hide();
if (status) {
ALOGE("Error %d hiding sprite surface.", status);
} else {
update.state.surfaceVisible = false;
update.surfaceChanged = surfaceChanged = true;
}
}
}
}
if (haveTransaction) {
SurfaceComposerClient::closeGlobalTransaction();
}
// If any surfaces were changed, write back the new surface properties to the sprites.
if (surfaceChanged) { // acquire lock
AutoMutex _l(mLock);
for (size_t i = 0; i < numSprites; i++) {
const SpriteUpdate& update = updates.itemAt(i);
if (update.surfaceChanged) {
update.sprite->setSurfaceLocked(update.state.surfaceControl,
update.state.surfaceWidth, update.state.surfaceHeight,
update.state.surfaceDrawn, update.state.surfaceVisible);
}
}
} // release lock
// Clear the sprite update vector outside the lock. It is very important that
// we do not clear sprite references inside the lock since we could be releasing
// the last remaining reference to the sprite here which would result in the
// sprite being deleted and the lock being reacquired by the sprite destructor
// while already held.
updates.clear();
}
static bool anp_surface_lock(JNIEnv* env, jobject surfaceView, ANPBitmap* bitmap, ANPRectI* dirtyRect) {
if (!bitmap || !surfaceView) {
return false;
}
void* surface = getSurface(env, surfaceView);
if (!bitmap || !surface) {
return false;
}
if (!init()) {
return false;
}
void* region = NULL;
if (dirtyRect) {
region = malloc(ANDROID_REGION_SIZE);
gSurfaceFunctions.regionConstructor(region);
ARect rect;
rect.left = dirtyRect->left;
rect.top = dirtyRect->top;
rect.right = dirtyRect->right;
rect.bottom = dirtyRect->bottom;
gSurfaceFunctions.setRegion(region, rect);
}
SurfaceInfo info;
int err = gSurfaceFunctions.lock(surface, &info, region);
if (err < 0) {
LOG("Failed to lock surface");
return false;
}
// the surface may have expanded the dirty region so we must to pass that
// information back to the plugin.
if (dirtyRect) {
ARect* dirtyBounds = (ARect*)region; // The bounds are the first member, so this should work!
dirtyRect->left = dirtyBounds->left;
dirtyRect->right = dirtyBounds->right;
dirtyRect->top = dirtyBounds->top;
dirtyRect->bottom = dirtyBounds->bottom;
}
if (region)
free(region);
int bpr = info.s * bytesPerPixel(info.format);
bitmap->format = convertPixelFormat(info.format);
bitmap->width = info.w;
bitmap->height = info.h;
bitmap->rowBytes = bpr;
if (info.w > 0 && info.h > 0) {
bitmap->baseAddr = info.bits;
} else {
bitmap->baseAddr = NULL;
return false;
}
return true;
}
static jlong nativeLockCanvas(JNIEnv* env, jclass clazz,
jlong nativeObject, jobject canvasObj, jobject dirtyRectObj) {
sp<Surface> surface(reinterpret_cast<Surface *>(nativeObject));
if (!isSurfaceValid(surface)) {
doThrowIAE(env);
return 0;
}
Rect dirtyRect;
Rect* dirtyRectPtr = NULL;
if (dirtyRectObj) {
dirtyRect.left = env->GetIntField(dirtyRectObj, gRectClassInfo.left);
dirtyRect.top = env->GetIntField(dirtyRectObj, gRectClassInfo.top);
dirtyRect.right = env->GetIntField(dirtyRectObj, gRectClassInfo.right);
dirtyRect.bottom = env->GetIntField(dirtyRectObj, gRectClassInfo.bottom);
dirtyRectPtr = &dirtyRect;
}
ANativeWindow_Buffer outBuffer;
status_t err = surface->lock(&outBuffer, dirtyRectPtr);
if (err < 0) {
const char* const exception = (err == NO_MEMORY) ?
OutOfResourcesException :
"java/lang/IllegalArgumentException";
jniThrowException(env, exception, NULL);
return 0;
}
// Associate a SkCanvas object to this surface
env->SetIntField(canvasObj, gCanvasClassInfo.mSurfaceFormat, outBuffer.format);
SkBitmap bitmap;
ssize_t bpr = outBuffer.stride * bytesPerPixel(outBuffer.format);
bitmap.setConfig(convertPixelFormat(outBuffer.format), outBuffer.width, outBuffer.height, bpr);
if (outBuffer.format == PIXEL_FORMAT_RGBX_8888) {
bitmap.setIsOpaque(true);
}
if (outBuffer.width > 0 && outBuffer.height > 0) {
bitmap.setPixels(outBuffer.bits);
} else {
// be safe with an empty bitmap.
bitmap.setPixels(NULL);
}
SkCanvas* nativeCanvas = SkNEW_ARGS(SkCanvas, (bitmap));
swapCanvasPtr(env, canvasObj, nativeCanvas);
if (dirtyRectPtr) {
nativeCanvas->clipRect( SkRect::Make(reinterpret_cast<const SkIRect&>(dirtyRect)) );
}
if (dirtyRectObj) {
env->SetIntField(dirtyRectObj, gRectClassInfo.left, dirtyRect.left);
env->SetIntField(dirtyRectObj, gRectClassInfo.top, dirtyRect.top);
env->SetIntField(dirtyRectObj, gRectClassInfo.right, dirtyRect.right);
env->SetIntField(dirtyRectObj, gRectClassInfo.bottom, dirtyRect.bottom);
}
// Create another reference to the surface and return it. This reference
// should be passed to nativeUnlockCanvasAndPost in place of mNativeObject,
// because the latter could be replaced while the surface is locked.
sp<Surface> lockedSurface(surface);
lockedSurface->incStrong(&sRefBaseOwner);
return (jlong) lockedSurface.get();
}
unsigned int ImageBase::bytesPerPlane() const {
return bytesPerPixel() / planes();
}
static jobject Surface_lockCanvas(JNIEnv* env, jobject clazz, jobject dirtyRect)
{
const sp<Surface>& surface(getSurface(env, clazz));
if (!Surface::isValid(surface)) {
doThrowIAE(env);
return 0;
}
// get dirty region
Region dirtyRegion;
if (dirtyRect) {
Rect dirty;
dirty.left = env->GetIntField(dirtyRect, ro.l);
dirty.top = env->GetIntField(dirtyRect, ro.t);
dirty.right = env->GetIntField(dirtyRect, ro.r);
dirty.bottom= env->GetIntField(dirtyRect, ro.b);
if (!dirty.isEmpty()) {
dirtyRegion.set(dirty);
}
} else {
dirtyRegion.set(Rect(0x3FFF,0x3FFF));
}
Surface::SurfaceInfo info;
status_t err = surface->lock(&info, &dirtyRegion);
if (err < 0) {
const char* const exception = (err == NO_MEMORY) ?
OutOfResourcesException :
"java/lang/IllegalArgumentException";
jniThrowException(env, exception, NULL);
return 0;
}
// Associate a SkCanvas object to this surface
jobject canvas = env->GetObjectField(clazz, so.canvas);
env->SetIntField(canvas, co.surfaceFormat, info.format);
SkCanvas* nativeCanvas = (SkCanvas*)env->GetIntField(canvas, no.native_canvas);
SkBitmap bitmap;
ssize_t bpr = info.s * bytesPerPixel(info.format);
bitmap.setConfig(convertPixelFormat(info.format), info.w, info.h, bpr);
if (info.format == PIXEL_FORMAT_RGBX_8888) {
bitmap.setIsOpaque(true);
}
if (info.w > 0 && info.h > 0) {
bitmap.setPixels(info.bits);
} else {
// be safe with an empty bitmap.
bitmap.setPixels(NULL);
}
nativeCanvas->setBitmapDevice(bitmap);
SkRegion clipReg;
if (dirtyRegion.isRect()) { // very common case
const Rect b(dirtyRegion.getBounds());
clipReg.setRect(b.left, b.top, b.right, b.bottom);
} else {
size_t count;
Rect const* r = dirtyRegion.getArray(&count);
while (count) {
clipReg.op(r->left, r->top, r->right, r->bottom, SkRegion::kUnion_Op);
r++, count--;
}
}
nativeCanvas->clipRegion(clipReg);
int saveCount = nativeCanvas->save();
env->SetIntField(clazz, so.saveCount, saveCount);
if (dirtyRect) {
const Rect& bounds(dirtyRegion.getBounds());
env->SetIntField(dirtyRect, ro.l, bounds.left);
env->SetIntField(dirtyRect, ro.t, bounds.top);
env->SetIntField(dirtyRect, ro.r, bounds.right);
env->SetIntField(dirtyRect, ro.b, bounds.bottom);
}
return canvas;
}
void LayerBase::loadTexture(const Region& dirty,
GLint textureName, const GGLSurface& t,
GLuint& textureWidth, GLuint& textureHeight) const
{
// TODO: defer the actual texture reload until LayerBase::validateTexture
// is called.
uint32_t flags = mFlags;
glBindTexture(GL_TEXTURE_2D, textureName);
GLuint tw = t.width;
GLuint th = t.height;
/*
* In OpenGL ES we can't specify a stride with glTexImage2D (however,
* GL_UNPACK_ALIGNMENT is 4, which in essence allows a limited form of
* stride).
* So if the stride here isn't representable with GL_UNPACK_ALIGNMENT, we
* need to do something reasonable (here creating a bigger texture).
*
* extra pixels = (((stride - width) * pixelsize) / GL_UNPACK_ALIGNMENT);
*
* This situation doesn't happen often, but some h/w have a limitation
* for their framebuffer (eg: must be multiple of 8 pixels), and
* we need to take that into account when using these buffers as
* textures.
*
* This should never be a problem with POT textures
*/
tw += (((t.stride - tw) * bytesPerPixel(t.format)) / 4);
/*
* round to POT if needed
*/
GLuint texture_w = tw;
GLuint texture_h = th;
if (!(flags & DisplayHardware::NPOT_EXTENSION)) {
// find the smallest power-of-two that will accommodate our surface
texture_w = 1 << (31 - clz(t.width));
texture_h = 1 << (31 - clz(t.height));
if (texture_w < t.width) texture_w <<= 1;
if (texture_h < t.height) texture_h <<= 1;
if (texture_w != tw || texture_h != th) {
// we can't use DIRECT_TEXTURE since we changed the size
// of the texture
flags &= ~DisplayHardware::DIRECT_TEXTURE;
}
}
if (flags & DisplayHardware::DIRECT_TEXTURE) {
// here we're guaranteed that texture_{w|h} == t{w|h}
if (t.format == GGL_PIXEL_FORMAT_RGB_565) {
glTexImage2D(GL_DIRECT_TEXTURE_2D_QUALCOMM, 0,
GL_RGB, tw, th, 0,
GL_RGB, GL_UNSIGNED_SHORT_5_6_5, t.data);
} else if (t.format == GGL_PIXEL_FORMAT_RGBA_4444) {
glTexImage2D(GL_DIRECT_TEXTURE_2D_QUALCOMM, 0,
GL_RGBA, tw, th, 0,
GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, t.data);
} else if (t.format == GGL_PIXEL_FORMAT_RGBA_8888) {
glTexImage2D(GL_DIRECT_TEXTURE_2D_QUALCOMM, 0,
GL_RGBA, tw, th, 0,
GL_RGBA, GL_UNSIGNED_BYTE, t.data);
} else if (t.format == GGL_PIXEL_FORMAT_BGRA_8888) {
// TODO: add GL_BGRA extension
} else {
// oops, we don't handle this format, try the regular path
goto regular;
}
textureWidth = tw;
textureHeight = th;
} else {
regular:
Rect bounds(dirty.bounds());
GLvoid* data = 0;
if (texture_w!=textureWidth || texture_h!=textureHeight) {
// texture size changed, we need to create a new one
if (!textureWidth || !textureHeight) {
// this is the first time, load the whole texture
if (texture_w==tw && texture_h==th) {
// we can do it one pass
data = t.data;
} else {
// we have to create the texture first because it
// doesn't match the size of the buffer
bounds.set(Rect(tw, th));
}
}
if (t.format == GGL_PIXEL_FORMAT_RGB_565) {
glTexImage2D(GL_TEXTURE_2D, 0,
GL_RGB, texture_w, texture_h, 0,
GL_RGB, GL_UNSIGNED_SHORT_5_6_5, data);
} else if (t.format == GGL_PIXEL_FORMAT_RGBA_4444) {
glTexImage2D(GL_TEXTURE_2D, 0,
GL_RGBA, texture_w, texture_h, 0,
GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4, data);
} else if (t.format == GGL_PIXEL_FORMAT_RGBA_8888) {
glTexImage2D(GL_TEXTURE_2D, 0,
GL_RGBA, texture_w, texture_h, 0,
GL_RGBA, GL_UNSIGNED_BYTE, data);
} else if ( t.format == GGL_PIXEL_FORMAT_YCbCr_422_SP ||
t.format == GGL_PIXEL_FORMAT_YCbCr_420_SP) {
// just show the Y plane of YUV buffers
data = t.data;
glTexImage2D(GL_TEXTURE_2D, 0,
GL_LUMINANCE, texture_w, texture_h, 0,
GL_LUMINANCE, GL_UNSIGNED_BYTE, data);
} else {
// oops, we don't handle this format!
LOGE("layer %p, texture=%d, using format %d, which is not "
"supported by the GL", this, textureName, t.format);
textureName = -1;
}
textureWidth = texture_w;
textureHeight = texture_h;
}
if (!data && textureName>=0) {
if (t.format == GGL_PIXEL_FORMAT_RGB_565) {
glTexSubImage2D(GL_TEXTURE_2D, 0,
0, bounds.top, t.width, bounds.height(),
GL_RGB, GL_UNSIGNED_SHORT_5_6_5,
t.data + bounds.top*t.width*2);
} else if (t.format == GGL_PIXEL_FORMAT_RGBA_4444) {
glTexSubImage2D(GL_TEXTURE_2D, 0,
0, bounds.top, t.width, bounds.height(),
GL_RGBA, GL_UNSIGNED_SHORT_4_4_4_4,
t.data + bounds.top*t.width*2);
} else if (t.format == GGL_PIXEL_FORMAT_RGBA_8888) {
glTexSubImage2D(GL_TEXTURE_2D, 0,
0, bounds.top, t.width, bounds.height(),
GL_RGBA, GL_UNSIGNED_BYTE,
t.data + bounds.top*t.width*4);
}
}
}
}
int Mouse::DrawCursor(CursorBounds desireBounds)
{
status_t status;
if (mWantChange && mSurfaceVisible) {
SurfaceComposerClient::openGlobalTransaction();
status = mSurfaceControl->show();
if (status) {
printf("Error %d setting sprite surface show.\n", status);
}
SurfaceComposerClient::closeGlobalTransaction();
mWantChange = false;
}
if (mWantChange && !mSurfaceVisible) {
SurfaceComposerClient::openGlobalTransaction();
status = mSurfaceControl->hide();
if (status) {
printf("Error %d setting sprite surface hide.\n", status);
}
SurfaceComposerClient::closeGlobalTransaction();
mWantChange = false;
}
if (mUpdateCursor && mSurfaceVisible) {
SurfaceComposerClient::openGlobalTransaction();
status = mSurfaceControl->setLayer(INT_MAX - 1);
if (status) {
printf("Error %d setting sprite surface setlayer.\n", status);
}
SurfaceComposerClient::closeGlobalTransaction();
SurfaceComposerClient::openGlobalTransaction();
if (desireBounds.width != mWidth || desireBounds.height != mHeight) {
//SurfaceComposerClient::openGlobalTransaction();
status = mSurfaceControl->setSize(mWidth, mHeight);
if (status) {
printf("Error %d setting sprite surface show.\n", status);
}
mWidth = desireBounds.width;
mHeight = desireBounds.height;
}
SurfaceComposerClient::closeGlobalTransaction();
sp<Surface> surface = mSurfaceControl->getSurface();
ANativeWindow_Buffer outBuffer;
status = surface->lock(&outBuffer, NULL);
SkBitmap surfaceBitmap;
ssize_t bpr = outBuffer.stride * bytesPerPixel(outBuffer.format);
surfaceBitmap.setConfig(SkBitmap::kARGB_8888_Config,
outBuffer.width, outBuffer.height, bpr);
printf("surface bpr size %d stride %d width %d height %d\n", bpr, outBuffer.stride, outBuffer.width, outBuffer.height);
SkBitmap srcBitmap;
bpr = desireBounds.width * bytesPerPixel(outBuffer.format);
srcBitmap.setConfig(SkBitmap::kARGB_8888_Config, desireBounds.width,
desireBounds.height, bpr);
printf("srcbitmap bpr size %d width %d height %d\n", bpr, desireBounds.width, desireBounds.height);
surfaceBitmap.setPixels(outBuffer.bits);
srcBitmap.setPixels(mDrawBitmaps);
SkCanvas surfaceCanvas(surfaceBitmap);
SkPaint paint;
paint.setXfermodeMode(SkXfermode::kSrc_Mode);
surfaceCanvas.drawBitmap(srcBitmap, 0, 0, &paint);
if (outBuffer.width > uint32_t(srcBitmap.width())) {
paint.setColor(0); // transparent fill color
surfaceCanvas.drawRectCoords(srcBitmap.width(), 0, outBuffer.width, srcBitmap.height(), paint);
}
if (outBuffer.height > uint32_t(srcBitmap.height())) {
paint.setColor(0); // transparent fill color
surfaceCanvas.drawRectCoords(0, srcBitmap.height(), outBuffer.width, outBuffer.height, paint);
}
status = surface->unlockAndPost();
if (status) {
printf("Error %d unlocking and posting sprite surface after drawing.\n", status);
}
mUpdateCursor = false;
}
if (mMove && mSurfaceVisible) {
if (desireBounds.spotX != mSpotX) {
mSpotX = desireBounds.spotX;
}
if (desireBounds.spotY != mSpotY) {
mSpotY = desireBounds.spotY;
}
SurfaceComposerClient::openGlobalTransaction();
status = mSurfaceControl->setPosition(mPos.x - mSpotX, mPos.y - mSpotY);
if (status) {
printf("Error %d setting sprite surface position.\n", status);
}
SurfaceComposerClient::closeGlobalTransaction();
mMove = false;
}
return 0;
}
static jlong nativeLockCanvas(JNIEnv* env, jclass clazz,
jlong nativeObject, jobject canvasObj, jobject dirtyRectObj) {
sp<Surface> surface(reinterpret_cast<Surface *>(nativeObject));
if (!isSurfaceValid(surface)) {
doThrowIAE(env);
return 0;
}
Rect dirtyRect;
Rect* dirtyRectPtr = NULL;
if (dirtyRectObj) {
dirtyRect.left = env->GetIntField(dirtyRectObj, gRectClassInfo.left);
dirtyRect.top = env->GetIntField(dirtyRectObj, gRectClassInfo.top);
dirtyRect.right = env->GetIntField(dirtyRectObj, gRectClassInfo.right);
dirtyRect.bottom = env->GetIntField(dirtyRectObj, gRectClassInfo.bottom);
dirtyRectPtr = &dirtyRect;
}
ANativeWindow_Buffer outBuffer;
status_t err = surface->lock(&outBuffer, dirtyRectPtr);
if (err < 0) {
const char* const exception = (err == NO_MEMORY) ?
OutOfResourcesException :
"java/lang/IllegalArgumentException";
jniThrowException(env, exception, NULL);
return 0;
}
// Associate a SkCanvas object to this surface
env->SetIntField(canvasObj, gCanvasClassInfo.mSurfaceFormat, outBuffer.format);
SkImageInfo info = SkImageInfo::Make(outBuffer.width, outBuffer.height,
convertPixelFormat(outBuffer.format),
kPremul_SkAlphaType);
if (outBuffer.format == PIXEL_FORMAT_RGBX_8888) {
info.fAlphaType = kOpaque_SkAlphaType;
}
SkBitmap bitmap;
ssize_t bpr = outBuffer.stride * bytesPerPixel(outBuffer.format);
bitmap.setInfo(info, bpr);
if (outBuffer.width > 0 && outBuffer.height > 0) {
bitmap.setPixels(outBuffer.bits);
} else {
// be safe with an empty bitmap.
bitmap.setPixels(NULL);
}
env->CallVoidMethod(canvasObj, gCanvasClassInfo.setNativeBitmap,
reinterpret_cast<jlong>(&bitmap));
if (dirtyRectPtr) {
SkCanvas* nativeCanvas = GraphicsJNI::getNativeCanvas(env, canvasObj);
SkRect r;
android::Point lt = dirtyRect.leftTop();
android::Point rb = dirtyRect.rightBottom();
r.set(SkIntToScalar(lt.x),
SkIntToScalar(lt.y),
SkIntToScalar(rb.x),
SkIntToScalar(rb.y));
nativeCanvas->clipRect(r);
}
if (dirtyRectObj) {
env->SetIntField(dirtyRectObj, gRectClassInfo.left, dirtyRect.left);
env->SetIntField(dirtyRectObj, gRectClassInfo.top, dirtyRect.top);
env->SetIntField(dirtyRectObj, gRectClassInfo.right, dirtyRect.right);
env->SetIntField(dirtyRectObj, gRectClassInfo.bottom, dirtyRect.bottom);
}
// Create another reference to the surface and return it. This reference
// should be passed to nativeUnlockCanvasAndPost in place of mNativeObject,
// because the latter could be replaced while the surface is locked.
sp<Surface> lockedSurface(surface);
lockedSurface->incStrong(&sRefBaseOwner);
return (jlong) lockedSurface.get();
}
