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SurfaceTextureClient: support for application buffer dimensions 

Add a new API native_window_set_buffers_user_dimensions to allow native
applications to override the native window size for the default buffer size.
This has lower precedence than the existing
native_window_set_buffers_dimensions and allows the two to co-exist.

Change-Id: Ie73590e1c94ef0dadbce500bd0941dfabbcace3c
This commit is contained in:
Michael I. Gold 2012-04-09 19:46:29 -07:00 committed by Jamie Gennis
parent 562f4b2c1e
commit 55a701459d
2 changed files with 52 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
include/gui/SurfaceTextureClient.h
View File

@ -73,6 +73,7 @@ private:
int dispatchSetBufferCount(va_list args);
int dispatchSetBuffersGeometry(va_list args);
int dispatchSetBuffersDimensions(va_list args);
int dispatchSetBuffersUserDimensions(va_list args);
int dispatchSetBuffersFormat(va_list args);
int dispatchSetScalingMode(va_list args);
int dispatchSetBuffersTransform(va_list args);
@ -95,6 +96,7 @@ protected:
virtual int disconnect(int api);
virtual int setBufferCount(int bufferCount);
virtual int setBuffersDimensions(int w, int h);
virtual int setBuffersUserDimensions(int w, int h);
virtual int setBuffersFormat(int format);
virtual int setScalingMode(int mode);
virtual int setBuffersTransform(int transform);
@ -157,13 +159,23 @@ private:
// buffer that gets queued. It is set by calling setTransform.
uint32_t mTransform;
// mDefaultWidth is default width of the window, regardless of the
// native_window_set_buffers_dimensions call
uint32_t mDefaultWidth;
// mDefaultWidth is default width of the buffers, regardless of the
// native_window_set_buffers_dimensions call.
uint32_t mDefaultWidth;
// mDefaultHeight is default width of the window, regardless of the
// native_window_set_buffers_dimensions call
uint32_t mDefaultHeight;
// mDefaultHeight is default height of the buffers, regardless of the
// native_window_set_buffers_dimensions call.
uint32_t mDefaultHeight;
// mUserWidth, if non-zero, is an application-specified override
// of mDefaultWidth. This is lower priority than the width set by
// native_window_set_buffers_dimensions.
uint32_t mUserWidth;
// mUserHeight, if non-zero, is an application-specified override
// of mDefaultHeight. This is lower priority than the height set
// by native_window_set_buffers_dimensions.
uint32_t mUserHeight;
// mTransformHint is the transform probably applied to buffers of this
// window. this is only a hint, actual transform may differ.

37
libs/gui/SurfaceTextureClient.cpp
View File

@ -80,6 +80,8 @@ void SurfaceTextureClient::init() {
mTransform = 0;
mDefaultWidth = 0;
mDefaultHeight = 0;
mUserWidth = 0;
mUserHeight = 0;
mTransformHint = 0;
mConnectedToCpu = false;
}
@ -159,7 +161,9 @@ int SurfaceTextureClient::dequeueBuffer(android_native_buffer_t** buffer) {
ALOGV("SurfaceTextureClient::dequeueBuffer");
Mutex::Autolock lock(mMutex);
int buf = -1;
status_t result = mSurfaceTexture->dequeueBuffer(&buf, mReqWidth, mReqHeight,
int reqW = mReqWidth ? mReqWidth : mUserWidth;
int reqH = mReqHeight ? mReqHeight : mUserHeight;
status_t result = mSurfaceTexture->dequeueBuffer(&buf, reqW, reqH,
mReqFormat, mReqUsage);
if (result < 0) {
ALOGV("dequeueBuffer: ISurfaceTexture::dequeueBuffer(%d, %d, %d, %d)"
@ -269,10 +273,10 @@ int SurfaceTextureClient::query(int what, int* value) const {
*value = NATIVE_WINDOW_SURFACE_TEXTURE_CLIENT;
return NO_ERROR;
case NATIVE_WINDOW_DEFAULT_WIDTH:
*value = mDefaultWidth;
*value = mUserWidth ? mUserWidth : mDefaultWidth;
return NO_ERROR;
case NATIVE_WINDOW_DEFAULT_HEIGHT:
*value = mDefaultHeight;
*value = mUserHeight ? mUserHeight : mDefaultHeight;
return NO_ERROR;
case NATIVE_WINDOW_TRANSFORM_HINT:
*value = mTransformHint;
@ -313,6 +317,9 @@ int SurfaceTextureClient::perform(int operation, va_list args)
case NATIVE_WINDOW_SET_BUFFERS_DIMENSIONS:
res = dispatchSetBuffersDimensions(args);
break;
case NATIVE_WINDOW_SET_BUFFERS_USER_DIMENSIONS:
res = dispatchSetBuffersUserDimensions(args);
break;
case NATIVE_WINDOW_SET_BUFFERS_FORMAT:
res = dispatchSetBuffersFormat(args);
break;
@ -380,6 +387,12 @@ int SurfaceTextureClient::dispatchSetBuffersDimensions(va_list args) {
return setBuffersDimensions(w, h);
}
int SurfaceTextureClient::dispatchSetBuffersUserDimensions(va_list args) {
int w = va_arg(args, int);
int h = va_arg(args, int);
return setBuffersUserDimensions(w, h);
}
int SurfaceTextureClient::dispatchSetBuffersFormat(va_list args) {
int f = va_arg(args, int);
return setBuffersFormat(f);
@ -504,6 +517,24 @@ int SurfaceTextureClient::setBuffersDimensions(int w, int h)
return NO_ERROR;
}
int SurfaceTextureClient::setBuffersUserDimensions(int w, int h)
{
ATRACE_CALL();
ALOGV("SurfaceTextureClient::setBuffersUserDimensions");
if (w<0 || h<0)
return BAD_VALUE;
if ((w && !h) || (!w && h))
return BAD_VALUE;
Mutex::Autolock lock(mMutex);
mUserWidth = w;
mUserHeight = h;
mCrop.clear();
return NO_ERROR;
}
int SurfaceTextureClient::setBuffersFormat(int format)
{
ALOGV("SurfaceTextureClient::setBuffersFormat");