3330b20303
When EGLImage extension is not available, SurfaceFlinger will fallback to using glTexImage2D and glTexSubImage2D instead, which requires 50% more memory and an extra copy. However this code path has never been exercised and had some bugs which this patch fix. Mainly the scale factor wasn't computed right when falling back on glDrawElements. We also fallback to this mode of operation if a buffer doesn't have the adequate usage bits for EGLImage usage. This changes only code that is currently not executed. Some refactoring was needed to keep the change clean. This doesn't change anything functionaly.
108 lines
2.9 KiB
C++
108 lines
2.9 KiB
C++
/*
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* Copyright (C) 2007 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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#ifndef ANDROID_ISURFACE_H
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#define ANDROID_ISURFACE_H
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#include <stdint.h>
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#include <sys/types.h>
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#include <utils/Errors.h>
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#include <binder/IInterface.h>
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#include <utils/RefBase.h>
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#include <ui/PixelFormat.h>
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#include <hardware/hardware.h>
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#include <hardware/gralloc.h>
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namespace android {
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typedef int32_t SurfaceID;
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class IMemoryHeap;
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class OverlayRef;
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class GraphicBuffer;
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class ISurface : public IInterface
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{
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protected:
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enum {
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REGISTER_BUFFERS = IBinder::FIRST_CALL_TRANSACTION,
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UNREGISTER_BUFFERS,
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POST_BUFFER, // one-way transaction
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CREATE_OVERLAY,
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REQUEST_BUFFER,
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};
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public:
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DECLARE_META_INTERFACE(Surface);
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virtual sp<GraphicBuffer> requestBuffer(int bufferIdx, int usage) = 0;
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class BufferHeap {
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public:
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enum {
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/* rotate source image 90 degrees */
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ROT_90 = HAL_TRANSFORM_ROT_90,
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};
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BufferHeap();
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BufferHeap(uint32_t w, uint32_t h,
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int32_t hor_stride, int32_t ver_stride,
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PixelFormat format, const sp<IMemoryHeap>& heap);
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BufferHeap(uint32_t w, uint32_t h,
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int32_t hor_stride, int32_t ver_stride,
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PixelFormat format, uint32_t transform, uint32_t flags,
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const sp<IMemoryHeap>& heap);
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~BufferHeap();
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uint32_t w;
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uint32_t h;
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int32_t hor_stride;
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int32_t ver_stride;
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PixelFormat format;
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uint32_t transform;
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uint32_t flags;
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sp<IMemoryHeap> heap;
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};
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virtual status_t registerBuffers(const BufferHeap& buffers) = 0;
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virtual void postBuffer(ssize_t offset) = 0; // one-way
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virtual void unregisterBuffers() = 0;
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virtual sp<OverlayRef> createOverlay(
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uint32_t w, uint32_t h, int32_t format) = 0;
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};
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// ----------------------------------------------------------------------------
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class BnSurface : public BnInterface<ISurface>
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{
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public:
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virtual status_t onTransact( uint32_t code,
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const Parcel& data,
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Parcel* reply,
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uint32_t flags = 0);
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};
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// ----------------------------------------------------------------------------
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}; // namespace android
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#endif // ANDROID_ISURFACE_H
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