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Diffstat (limited to 'libs/surfaceflinger/LayerBitmap.cpp')
-rw-r--r-- | libs/surfaceflinger/LayerBitmap.cpp | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/libs/surfaceflinger/LayerBitmap.cpp b/libs/surfaceflinger/LayerBitmap.cpp deleted file mode 100644 index e844350..0000000 --- a/libs/surfaceflinger/LayerBitmap.cpp +++ /dev/null @@ -1,185 +0,0 @@ -/* - * 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. - */ - -#define LOG_TAG "SurfaceFlinger" - -#include <stdlib.h> -#include <stdint.h> -#include <sys/types.h> - -#include <cutils/memory.h> -#include <utils/Errors.h> -#include <utils/Log.h> -#include <utils/MemoryDealer.h> -#include <utils/IMemory.h> -#include <ui/PixelFormat.h> -#include <pixelflinger/pixelflinger.h> - -#include "LayerBitmap.h" -#include "SurfaceFlinger.h" -#include "VRamHeap.h" - - -namespace android { - -// --------------------------------------------------------------------------- - -LayerBitmap::LayerBitmap() - : mAllocFlags(0), mOffset(0), mSize(-1U), mAlignment(2) -{ - memset(&mSurface, 0, sizeof(mSurface)); -} - -LayerBitmap::~LayerBitmap() -{ - mSurface.data = 0; -} - -status_t LayerBitmap::init(const sp<MemoryDealer>& allocator) -{ - if (mAllocator != NULL) - return BAD_VALUE; - mAllocator = allocator; - return NO_ERROR; -} - -status_t LayerBitmap::setBits(uint32_t w, uint32_t h, uint32_t alignment, - PixelFormat format, uint32_t flags) -{ - const sp<MemoryDealer>& allocator(mAllocator); - if (allocator == NULL) - return NO_INIT; - - if (UNLIKELY(w == mSurface.width && h == mSurface.height && - format == mSurface.format)) - { // same format and size, do nothing. - return NO_ERROR; - } - - PixelFormatInfo info; - getPixelFormatInfo(format, &info); - - uint32_t allocFlags = MemoryDealer::PAGE_ALIGNED; - const uint32_t align = 4; // must match GL_UNPACK_ALIGNMENT - const uint32_t Bpp = info.bytesPerPixel; - uint32_t stride = (w + (alignment-1)) & ~(alignment-1); - stride = ((stride * Bpp + (align-1)) & ~(align-1)) / Bpp; - size_t size = info.getScanlineSize(stride) * h; - if (allocFlags & MemoryDealer::PAGE_ALIGNED) { - size_t pagesize = getpagesize(); - size = (size + (pagesize-1)) & ~(pagesize-1); - } - - /* FIXME: we should be able to have a h/v stride because the user of the - * surface might have stride limitation (for instance h/w codecs often do) - */ - int32_t vstride = 0; - - mAlignment = alignment; - mAllocFlags = allocFlags; - mOffset = 0; - if (mSize != size) { - // would be nice to have a reallocate() api - mBitsMemory.clear(); // free-memory - mBitsMemory = allocator->allocate(size, allocFlags); - mSize = size; - } else { - // don't erase memory if we didn't have to reallocate - flags &= ~SECURE_BITS; - } - if (mBitsMemory != 0) { - mOffset = mBitsMemory->offset(); - mSurface.data = static_cast<GGLubyte*>(mBitsMemory->pointer()); - mSurface.version = sizeof(GGLSurface); - mSurface.width = w; - mSurface.height = h; - mSurface.stride = stride; - mSurface.vstride = vstride; - mSurface.format = format; - if (flags & SECURE_BITS) - clear(); - } - - if (mBitsMemory==0 || mSurface.data==0) { - LOGE("not enough memory for layer bitmap size=%u", size); - allocator->dump("LayerBitmap"); - mSurface.data = 0; - mSize = -1U; - return NO_MEMORY; - } - return NO_ERROR; -} - -void LayerBitmap::clear() -{ - // NOTE: this memset should not be necessary, at least for - // opaque surface. However, for security reasons it's better to keep it - // (in the case of pmem, it's possible that the memory contains old - // data) - if (mSurface.data) { - memset(mSurface.data, 0, mSize); - //if (bytesPerPixel(mSurface.format) == 4) { - // android_memset32((uint32_t*)mSurface.data, 0xFF0000FF, mSize); - //} else { - // android_memset16((uint16_t*)mSurface.data, 0xF800, mSize); - //} - } -} - -status_t LayerBitmap::getInfo(surface_info_t* info) const -{ - if (mSurface.data == 0) { - memset(info, 0, sizeof(surface_info_t)); - info->bits_offset = NO_MEMORY; - return NO_MEMORY; - } - info->w = uint16_t(width()); - info->h = uint16_t(height()); - info->stride= uint16_t(stride()); - info->bpr = uint16_t(stride() * bytesPerPixel(pixelFormat())); - info->format= uint8_t(pixelFormat()); - info->flags = surface_info_t::eBufferDirty; - info->bits_offset = ssize_t(mOffset); - return NO_ERROR; -} - -status_t LayerBitmap::resize(uint32_t w, uint32_t h) -{ - int err = setBits(w, h, mAlignment, pixelFormat(), SECURE_BITS); - return err; -} - -size_t LayerBitmap::size() const -{ - return mSize; -} - -void LayerBitmap::getBitmapSurface(copybit_image_t* img) const -{ - const sp<IMemoryHeap>& mh(getAllocator()->getMemoryHeap()); - void* sbase = mh->base(); - const GGLSurface& t(surface()); - img->w = t.stride ?: t.width; - img->h = t.vstride ?: t.height; - img->format = t.format; - img->offset = intptr_t(t.data) - intptr_t(sbase); - img->base = sbase; - img->fd = mh->heapID(); -} - -// --------------------------------------------------------------------------- - -}; // namespace android |