commit c18790018be5d7ea7061ccbc81f3044e74adc823
author Dan Stoza <stoza@google.com> Thu May 22 15:59:05 2014 -0700
committer Dan Stoza <stoza@google.com> Fri May 23 09:19:03 2014 -0700
tree d03920775e72b284447202d109996002ce5e1784
parent 9bf29a81df0eaf923f3a9821655c663290a0a854

SurfaceFlinger: Add sourceCrop to screenshot

Adds a sourceCrop Rect parameter to screenshot commands, which allows
clients to capture only a portion of the screen instead of the whole
screen.

Bug: 15137922
Change-Id: I629447573cd34ffb96334cde7ba02490b9ea06d8

libs/gui/SurfaceComposerClient.cpp

diff --git a/libs/gui/SurfaceComposerClient.cpp b/libs/gui/SurfaceComposerClient.cpp
index 1dffdb2..eedeca1 100644
--- a/libs/gui/SurfaceComposerClient.cpp
+++ b/libs/gui/SurfaceComposerClient.cpp
@@ -676,11 +676,11 @@
 status_t ScreenshotClient::capture(
         const sp<IBinder>& display,
         const sp<IGraphicBufferProducer>& producer,
-        uint32_t reqWidth, uint32_t reqHeight,
+        Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
         uint32_t minLayerZ, uint32_t maxLayerZ, bool useIdentityTransform) {
     sp<ISurfaceComposer> s(ComposerService::getComposerService());
     if (s == NULL) return NO_INIT;
-    return s->captureScreen(display, producer,
+    return s->captureScreen(display, producer, sourceCrop,
             reqWidth, reqHeight, minLayerZ, maxLayerZ, useIdentityTransform);
 }
 
@@ -704,7 +704,7 @@
 }
 
 status_t ScreenshotClient::update(const sp<IBinder>& display,
-        uint32_t reqWidth, uint32_t reqHeight,
+        Rect sourceCrop, uint32_t reqWidth, uint32_t reqHeight,
         uint32_t minLayerZ, uint32_t maxLayerZ,
         bool useIdentityTransform) {
     sp<ISurfaceComposer> s(ComposerService::getComposerService());
@@ -717,7 +717,7 @@
         mHaveBuffer = false;
     }
 
-    status_t err = s->captureScreen(display, mProducer,
+    status_t err = s->captureScreen(display, mProducer, sourceCrop,
             reqWidth, reqHeight, minLayerZ, maxLayerZ, useIdentityTransform);
 
     if (err == NO_ERROR) {
@@ -729,16 +729,16 @@
     return err;
 }
 
-status_t ScreenshotClient::update(const sp<IBinder>& display,
+status_t ScreenshotClient::update(const sp<IBinder>& display, Rect sourceCrop,
         bool useIdentityTransform) {
-    return ScreenshotClient::update(display, 0, 0, 0, -1UL,
+    return ScreenshotClient::update(display, sourceCrop, 0, 0, 0, -1UL,
             useIdentityTransform);
 }
 
-status_t ScreenshotClient::update(const sp<IBinder>& display,
+status_t ScreenshotClient::update(const sp<IBinder>& display, Rect sourceCrop,
         uint32_t reqWidth, uint32_t reqHeight, bool useIdentityTransform) {
-    return ScreenshotClient::update(display, reqWidth, reqHeight, 0, -1UL,
-            useIdentityTransform);
+    return ScreenshotClient::update(display, sourceCrop, reqWidth, reqHeight,
+            0, -1UL, useIdentityTransform);
 }
 
 void ScreenshotClient::release() {