Add API to copy a window
Change-Id: I9bb5209010db6665be4b6f8db81a6fc1b7debc45
diff --git a/libs/hwui/Readback.cpp b/libs/hwui/Readback.cpp
index 65a8ebb..ddca122 100644
--- a/libs/hwui/Readback.cpp
+++ b/libs/hwui/Readback.cpp
@@ -32,7 +32,8 @@
namespace uirenderer {
static CopyResult copyTextureInto(Caches& caches, RenderState& renderState,
- Texture& sourceTexture, Matrix4& texTransform, SkBitmap* bitmap) {
+ Texture& sourceTexture, Matrix4& texTransform, const Rect& srcRect,
+ SkBitmap* bitmap) {
int destWidth = bitmap->width();
int destHeight = bitmap->height();
if (destWidth > caches.maxTextureSize
@@ -100,11 +101,19 @@
renderState.blend().syncEnabled();
renderState.stencil().disable();
+ Matrix4 croppedTexTransform(texTransform);
+ if (!srcRect.isEmpty()) {
+ croppedTexTransform.loadTranslate(srcRect.left / sourceTexture.width(),
+ srcRect.top / sourceTexture.height(), 0);
+ croppedTexTransform.scale(srcRect.getWidth() / sourceTexture.width(),
+ srcRect.getHeight() / sourceTexture.height(), 1);
+ croppedTexTransform.multiply(texTransform);
+ }
Glop glop;
GlopBuilder(renderState, caches, &glop)
.setRoundRectClipState(nullptr)
.setMeshTexturedUnitQuad(nullptr)
- .setFillExternalTexture(sourceTexture, texTransform)
+ .setFillExternalTexture(sourceTexture, croppedTexTransform)
.setTransform(Matrix4::identity(), TransformFlags::None)
.setModelViewMapUnitToRect(Rect(destWidth, destHeight))
.build();
@@ -126,7 +135,8 @@
}
CopyResult Readback::copySurfaceInto(renderthread::RenderThread& renderThread,
- Surface& surface, SkBitmap* bitmap) {
+ Surface& surface, const Rect& srcRect, SkBitmap* bitmap) {
+ ATRACE_CALL();
renderThread.eglManager().initialize();
Caches& caches = Caches::getInstance();
@@ -190,7 +200,7 @@
sourceBuffer->getWidth(), sourceBuffer->getHeight(), 0 /* total lie */);
CopyResult copyResult = copyTextureInto(caches, renderThread.renderState(),
- sourceTexture, texTransform, bitmap);
+ sourceTexture, texTransform, srcRect, bitmap);
sourceTexture.deleteTexture();
// All we're flushing & finishing is the deletion of the texture since
// copyTextureInto already did a major flush & finish as an implicit
@@ -202,8 +212,9 @@
CopyResult Readback::copyTextureLayerInto(renderthread::RenderThread& renderThread,
Layer& layer, SkBitmap* bitmap) {
+ ATRACE_CALL();
return copyTextureInto(Caches::getInstance(), renderThread.renderState(),
- layer.getTexture(), layer.getTexTransform(), bitmap);
+ layer.getTexture(), layer.getTexTransform(), Rect(), bitmap);
}
} // namespace uirenderer
diff --git a/libs/hwui/Readback.h b/libs/hwui/Readback.h
index bd73734..55c943c 100644
--- a/libs/hwui/Readback.h
+++ b/libs/hwui/Readback.h
@@ -17,6 +17,7 @@
#pragma once
#include "renderthread/RenderThread.h"
+#include "Rect.h"
#include <SkBitmap.h>
#include <gui/Surface.h>
@@ -42,7 +43,7 @@
* Copies the surface's most recently queued buffer into the provided bitmap.
*/
static CopyResult copySurfaceInto(renderthread::RenderThread& renderThread,
- Surface& surface, SkBitmap* bitmap);
+ Surface& surface, const Rect& srcRect, SkBitmap* bitmap);
/**
* Copies the TextureLayer's texture content (thus, the currently rendering buffer) into the
diff --git a/libs/hwui/renderthread/RenderProxy.cpp b/libs/hwui/renderthread/RenderProxy.cpp
index 3edd423..dcbc980 100644
--- a/libs/hwui/renderthread/RenderProxy.cpp
+++ b/libs/hwui/renderthread/RenderProxy.cpp
@@ -617,17 +617,19 @@
post(task);
}
-CREATE_BRIDGE3(copySurfaceInto, RenderThread* thread,
- Surface* surface, SkBitmap* bitmap) {
+CREATE_BRIDGE4(copySurfaceInto, RenderThread* thread,
+ Surface* surface, Rect srcRect, SkBitmap* bitmap) {
return (void*) Readback::copySurfaceInto(*args->thread,
- *args->surface, args->bitmap);
+ *args->surface, args->srcRect, args->bitmap);
}
-int RenderProxy::copySurfaceInto(sp<Surface>& surface, SkBitmap* bitmap) {
+int RenderProxy::copySurfaceInto(sp<Surface>& surface, int left, int top,
+ int right, int bottom, SkBitmap* bitmap) {
SETUP_TASK(copySurfaceInto);
args->bitmap = bitmap;
args->surface = surface.get();
args->thread = &RenderThread::getInstance();
+ args->srcRect.set(left, top, right, bottom);
return static_cast<int>(
reinterpret_cast<intptr_t>( staticPostAndWait(task) ));
}
diff --git a/libs/hwui/renderthread/RenderProxy.h b/libs/hwui/renderthread/RenderProxy.h
index d812970..d4aaea6 100644
--- a/libs/hwui/renderthread/RenderProxy.h
+++ b/libs/hwui/renderthread/RenderProxy.h
@@ -127,7 +127,8 @@
ANDROID_API void removeFrameMetricsObserver(FrameMetricsObserver* observer);
ANDROID_API long getDroppedFrameReportCount();
- ANDROID_API static int copySurfaceInto(sp<Surface>& surface, SkBitmap* bitmap);
+ ANDROID_API static int copySurfaceInto(sp<Surface>& surface,
+ int left, int top, int right, int bottom, SkBitmap* bitmap);
ANDROID_API static void prepareToDraw(const SkBitmap& bitmap);
private: