1e51071240
Refactor to make EglManager re-usable. Test: hwuiunit passes, hwuimacro works Change-Id: Ie8e9398c703fada1dc5d8baca5f42485eadea202
98 lines
3.6 KiB
C++
98 lines
3.6 KiB
C++
/*
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* Copyright (C) 2016 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "EglReadback.h"
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#include "renderthread/EglManager.h"
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#include <gui/Surface.h>
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#include <ui/Fence.h>
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#include <ui/GraphicBuffer.h>
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namespace android {
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namespace uirenderer {
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CopyResult EglReadback::copySurfaceInto(Surface& surface, const Rect& srcRect,
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SkBitmap* bitmap) {
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ATRACE_CALL();
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// Setup the source
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sp<GraphicBuffer> sourceBuffer;
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sp<Fence> sourceFence;
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Matrix4 texTransform;
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status_t err = surface.getLastQueuedBuffer(&sourceBuffer, &sourceFence, texTransform.data);
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texTransform.invalidateType();
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if (err != NO_ERROR) {
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ALOGW("Failed to get last queued buffer, error = %d", err);
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return CopyResult::UnknownError;
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}
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if (!sourceBuffer.get()) {
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ALOGW("Surface doesn't have any previously queued frames, nothing to readback from");
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return CopyResult::SourceEmpty;
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}
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if (sourceBuffer->getUsage() & GRALLOC_USAGE_PROTECTED) {
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ALOGW("Surface is protected, unable to copy from it");
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return CopyResult::SourceInvalid;
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}
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err = sourceFence->wait(500 /* ms */);
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if (err != NO_ERROR) {
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ALOGE("Timeout (500ms) exceeded waiting for buffer fence, abandoning readback attempt");
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return CopyResult::Timeout;
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}
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return copyGraphicBufferInto(sourceBuffer.get(), texTransform, srcRect, bitmap);
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}
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CopyResult EglReadback::copyGraphicBufferInto(GraphicBuffer* graphicBuffer,
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Matrix4& texTransform, const Rect& srcRect,
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SkBitmap* bitmap) {
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mRenderThread.requireGlContext();
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// TODO: Can't use Image helper since it forces GL_TEXTURE_2D usage via
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// GL_OES_EGL_image, which doesn't work since we need samplerExternalOES
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// to be able to properly sample from the buffer.
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// Create the EGLImage object that maps the GraphicBuffer
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EGLDisplay display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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EGLClientBuffer clientBuffer = (EGLClientBuffer)graphicBuffer->getNativeBuffer();
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EGLint attrs[] = {EGL_IMAGE_PRESERVED_KHR, EGL_TRUE, EGL_NONE};
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EGLImageKHR sourceImage = eglCreateImageKHR(display, EGL_NO_CONTEXT, EGL_NATIVE_BUFFER_ANDROID,
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clientBuffer, attrs);
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if (sourceImage == EGL_NO_IMAGE_KHR) {
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ALOGW("eglCreateImageKHR failed (%#x)", eglGetError());
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return CopyResult::UnknownError;
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}
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uint32_t width = graphicBuffer->getWidth();
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uint32_t height = graphicBuffer->getHeight();
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CopyResult copyResult =
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copyImageInto(sourceImage, texTransform, width, height, srcRect, bitmap);
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eglDestroyImageKHR(display, sourceImage);
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return copyResult;
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}
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CopyResult EglReadback::copyGraphicBufferInto(GraphicBuffer* graphicBuffer, SkBitmap* bitmap) {
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Rect srcRect;
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Matrix4 transform;
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transform.loadScale(1, -1, 1);
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transform.translate(0, -1);
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return copyGraphicBufferInto(graphicBuffer, transform, srcRect, bitmap);
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}
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} // namespace uirenderer
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} // namespace android
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