124 lines
4.1 KiB
C
124 lines
4.1 KiB
C
/*
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* Copyright 2011 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 SYSTEM_HALS_CB_HANDLE_30_H
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#define SYSTEM_HALS_CB_HANDLE_30_H
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#include <gralloc_cb_bp.h>
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#include "goldfish_address_space.h"
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const uint32_t CB_HANDLE_MAGIC_30 = CB_HANDLE_MAGIC_BASE | 0x2;
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struct cb_handle_30_t : public cb_handle_t {
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cb_handle_30_t(int p_bufferFd,
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int p_hostHandleRefCountFd,
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uint32_t p_hostHandle,
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uint32_t p_usage,
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uint32_t p_width,
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uint32_t p_height,
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uint32_t p_format,
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uint32_t p_glFormat,
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uint32_t p_glType,
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uint32_t p_bufSize,
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void* p_bufPtr,
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uint32_t p_mmapedSize,
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uint64_t p_mmapedOffset,
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uint32_t p_bytesPerPixel,
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uint32_t p_stride)
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: cb_handle_t(CB_HANDLE_MAGIC_30,
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p_hostHandle,
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p_format,
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p_stride,
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p_bufSize,
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p_mmapedOffset),
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usage(p_usage),
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width(p_width),
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height(p_height),
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glFormat(p_glFormat),
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glType(p_glType),
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bytesPerPixel(p_bytesPerPixel),
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mmapedSize(p_mmapedSize),
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lockedUsage(0) {
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fds[0] = -1;
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fds[1] = -1;
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int n = 0;
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if (p_bufferFd >= 0) {
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bufferFdIndex = n++;
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fds[bufferFdIndex] = p_bufferFd;
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} else {
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bufferFdIndex = -1;
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}
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if (p_hostHandleRefCountFd >= 0) {
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hostHandleRefcountFdIndex = n++;
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fds[hostHandleRefcountFdIndex] = p_hostHandleRefCountFd;
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} else {
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hostHandleRefcountFdIndex = -1;
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}
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numFds = n;
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numInts = CB_HANDLE_NUM_INTS(n);
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setBufferPtr(p_bufPtr);
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}
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bool isValid() const { return (version == sizeof(native_handle_t)) && (magic == CB_HANDLE_MAGIC_30); }
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void* getBufferPtr() const {
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const uint64_t addr = (uint64_t(bufferPtrHi) << 32) | bufferPtrLo;
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return reinterpret_cast<void*>(static_cast<uintptr_t>(addr));
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}
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void setBufferPtr(void* ptr) {
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const uint64_t addr = static_cast<uint64_t>(reinterpret_cast<uintptr_t>(ptr));
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bufferPtrLo = uint32_t(addr);
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bufferPtrHi = uint32_t(addr >> 32);
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}
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static cb_handle_30_t* from(void* p) {
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if (!p) { return nullptr; }
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cb_handle_30_t* cb = static_cast<cb_handle_30_t*>(p);
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return cb->isValid() ? cb : nullptr;
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}
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static const cb_handle_30_t* from(const void* p) {
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return from(const_cast<void*>(p));
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}
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static cb_handle_30_t* from_unconst(const void* p) {
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return from(const_cast<void*>(p));
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}
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uint32_t usage; // usage bits the buffer was created with
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uint32_t width; // buffer width
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uint32_t height; // buffer height
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uint32_t glFormat; // OpenGL format enum used for host h/w color buffer
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uint32_t glType; // OpenGL type enum used when uploading to host
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uint32_t bytesPerPixel;
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uint32_t mmapedSize; // real allocation side
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uint32_t bufferPtrLo;
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uint32_t bufferPtrHi;
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uint8_t lockedUsage;
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int8_t bufferFdIndex;
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int8_t hostHandleRefcountFdIndex;
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int8_t unused;
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uint32_t lockedLeft; // region of buffer locked for s/w write
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uint32_t lockedTop;
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uint32_t lockedWidth;
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uint32_t lockedHeight;
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};
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#endif // SYSTEM_HALS_CB_HANDLE_30_H
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