56513f5ff4
Because of the way the SDK and Android system images are branched,
host code that goes into the SDK tools can't live in the same
repository as code that goes into the system image. This change keeps
the emugl host code in sdk.git/emulator/opengl while moving the emugl
system code to development.git/tools/emulator/opengl.
A few changes were made beyond simply cloning the directories:
(a) Makefiles were modified to only build the relevant components. Not
doing so would break the build due to having multiple rule
definitions.
(b) Protocol spec files were moved from the guest encoder directories
to the host decoder directories. The decoder must support older
versions of the protocol, but not newer versions, so it makes
sense to keep the latest version of the protocol spec with the
decoder.
(c) Along with that, the encoder is now built from checked in
generated encoder source rather than directly from the protocol
spec. The generated code must be updated manually. This makes it
possible to freeze the system encoder version without freezing the
host decoder version, and also makes it very obvious when a
protocol changes is happening that will require special
backwards-compatibility support in the decoder/renderer.
(d) Host-only and system-only code were removed from the repository
where they aren't used.
(e) README and DESIGN documents were updated to reflect this split.
No actual source code was changed due to the above.
Change-Id: I2c936101ea0405b372750d36ba0f01e84d719c43
107 lines
3.3 KiB
C
107 lines
3.3 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 __GRALLOC_CB_H__
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#define __GRALLOC_CB_H__
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#include <hardware/hardware.h>
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#include <hardware/gralloc.h>
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#include <cutils/native_handle.h>
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#define BUFFER_HANDLE_MAGIC ((int)0xabfabfab)
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#define CB_HANDLE_NUM_INTS(nfds) (int)((sizeof(cb_handle_t) - (nfds)*sizeof(int)) / sizeof(int))
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//
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// Our buffer handle structure
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//
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struct cb_handle_t : public native_handle {
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cb_handle_t(int p_fd, int p_ashmemSize, int p_usage,
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int p_width, int p_height,
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int p_glFormat, int p_glType) :
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fd(p_fd),
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magic(BUFFER_HANDLE_MAGIC),
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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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ashmemSize(p_ashmemSize),
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ashmemBase(NULL),
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ashmemBasePid(0),
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mappedPid(0),
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lockedLeft(0),
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lockedTop(0),
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lockedWidth(0),
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lockedHeight(0),
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hostHandle(0)
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{
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version = sizeof(native_handle);
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numFds = 0;
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numInts = CB_HANDLE_NUM_INTS(numFds);
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}
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~cb_handle_t() {
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magic = 0;
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}
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void setFd(int p_fd) {
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if (p_fd >= 0) {
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numFds = 1;
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}
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else {
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numFds = 0;
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}
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fd = p_fd;
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numInts = CB_HANDLE_NUM_INTS(numFds);
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}
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static bool validate(cb_handle_t * hnd) {
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return (hnd &&
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hnd->version == sizeof(native_handle) &&
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hnd->magic == BUFFER_HANDLE_MAGIC &&
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hnd->numInts == CB_HANDLE_NUM_INTS(hnd->numFds));
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}
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bool canBePosted() {
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return (0 != (usage & GRALLOC_USAGE_HW_FB));
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}
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// file-descriptors
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int fd; // ashmem fd (-1 of ashmem region did not allocated, i.e. no SW access needed)
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// ints
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int magic; // magic number in order to validate a pointer to be a cb_handle_t
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int usage; // usage bits the buffer was created with
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int width; // buffer width
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int height; // buffer height
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int glFormat; // OpenGL format enum used for host h/w color buffer
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int glType; // OpenGL type enum used when uploading to host
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int ashmemSize; // ashmem region size for the buffer (0 unless is HW_FB buffer or
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// s/w access is needed)
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int ashmemBase; // CPU address of the mapped ashmem region
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int ashmemBasePid; // process id which mapped the ashmem region
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int mappedPid; // process id which succeeded gralloc_register call
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int lockedLeft; // region of buffer locked for s/w write
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int lockedTop;
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int lockedWidth;
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int lockedHeight;
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uint32_t hostHandle;
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};
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#endif //__GRALLOC_CB_H__
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