112 lines
2.9 KiB
C++
112 lines
2.9 KiB
C++
|
/*
|
||
|
|
* Copyright (C) 2007 The Android Open Source Project
|
||
|
|
*
|
||
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
||
|
|
* you may not use this file except in compliance with the License.
|
||
|
|
* You may obtain a copy of the License at
|
||
|
|
*
|
||
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
||
|
|
*
|
||
|
|
* Unless required by applicable law or agreed to in writing, software
|
||
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
||
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
|
|
* See the License for the specific language governing permissions and
|
||
|
|
* limitations under the License.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <sys/types.h>
|
||
|
|
|
||
|
|
#include <utils/Errors.h>
|
||
|
|
#include <utils/Log.h>
|
||
|
|
|
||
|
|
#include <ui/PixelFormat.h>
|
||
|
|
#include <pixelflinger/pixelflinger.h>
|
||
|
|
|
||
|
|
#include "Buffer.h"
|
||
|
|
#include "BufferAllocator.h"
|
||
|
|
|
||
|
|
|
||
|
|
namespace android {
|
||
|
|
|
||
|
|
// ===========================================================================
|
||
|
|
// Buffer and implementation of android_native_buffer_t
|
||
|
|
// ===========================================================================
|
||
|
|
|
||
|
|
Buffer::Buffer()
|
||
|
|
: SurfaceBuffer(), mInitCheck(NO_ERROR), mVStride(0)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
Buffer::Buffer(uint32_t w, uint32_t h, PixelFormat format,
|
||
|
|
uint32_t reqUsage, uint32_t flags)
|
||
|
|
: SurfaceBuffer(), mInitCheck(NO_INIT), mVStride(0)
|
||
|
|
{
|
||
|
|
mInitCheck = initSize(w, h, format, reqUsage, flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
Buffer::~Buffer()
|
||
|
|
{
|
||
|
|
if (handle) {
|
||
|
|
BufferAllocator& allocator(BufferAllocator::get());
|
||
|
|
allocator.free(handle);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
status_t Buffer::initCheck() const {
|
||
|
|
return mInitCheck;
|
||
|
|
}
|
||
|
|
|
||
|
|
android_native_buffer_t* Buffer::getNativeBuffer() const
|
||
|
|
{
|
||
|
|
return static_cast<android_native_buffer_t*>(const_cast<Buffer*>(this));
|
||
|
|
}
|
||
|
|
|
||
|
|
status_t Buffer::reallocate(uint32_t w, uint32_t h, PixelFormat f,
|
||
|
|
uint32_t reqUsage, uint32_t flags)
|
||
|
|
{
|
||
|
|
if (handle) {
|
||
|
|
BufferAllocator& allocator(BufferAllocator::get());
|
||
|
|
allocator.free(handle);
|
||
|
|
handle = 0;
|
||
|
|
}
|
||
|
|
return initSize(w, h, f, reqUsage, flags);
|
||
|
|
}
|
||
|
|
|
||
|
|
status_t Buffer::initSize(uint32_t w, uint32_t h, PixelFormat format,
|
||
|
|
uint32_t reqUsage, uint32_t flags)
|
||
|
|
{
|
||
|
|
status_t err = NO_ERROR;
|
||
|
|
BufferAllocator& allocator = BufferAllocator::get();
|
||
|
|
err = allocator.alloc(w, h, format, reqUsage, &handle, &stride);
|
||
|
|
if (err == NO_ERROR) {
|
||
|
|
this->width = w;
|
||
|
|
this->height = h;
|
||
|
|
this->format = format;
|
||
|
|
mVStride = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
return err;
|
||
|
|
}
|
||
|
|
|
||
|
|
status_t Buffer::lock(GGLSurface* sur, uint32_t usage)
|
||
|
|
{
|
||
|
|
void* vaddr;
|
||
|
|
status_t res = SurfaceBuffer::lock(usage, &vaddr);
|
||
|
|
if (res == NO_ERROR && sur) {
|
||
|
|
sur->version = sizeof(GGLSurface);
|
||
|
|
sur->width = width;
|
||
|
|
sur->height = height;
|
||
|
|
sur->stride = stride;
|
||
|
|
sur->format = format;
|
||
|
|
sur->vstride = mVStride;
|
||
|
|
sur->data = static_cast<GGLubyte*>(vaddr);
|
||
|
|
}
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
|
||
|
|
// ---------------------------------------------------------------------------
|
||
|
|
|
||
|
|
}; // namespace android
|