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drmgralloc4.cpp
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drmgralloc4.cpp
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/*
* Copyright (C) 2019-2020 RockChip Limited. All rights reserved.
*
* 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.
*/
/* --------------------------------------------------------------------------------------------------------
* File: platform_gralloc4.c
*
* Desc: 具体实现 platform_gralloc4.h 定义的接口, 基于 IMapper 4.0.
*
* -----------------------------------------------------------------------------------
* < 习语 和 缩略语 > :
*
* -----------------------------------------------------------------------------------
* < 内部模块 or 对象的层次结构 > :
*
* -----------------------------------------------------------------------------------
* < 功能实现的基本流程 > :
*
* -----------------------------------------------------------------------------------
* < 关键标识符 > :
*
* -----------------------------------------------------------------------------------
* < 本模块实现依赖的外部模块 > :
* ...
* -----------------------------------------------------------------------------------
* Note:
*
* Author: ChenZhen
*
* Log:
* init
----Fri Aug 28 10:17:46 2020
*/
/* ---------------------------------------------------------------------------------------------------------
* Include Files
* ---------------------------------------------------------------------------------------------------------
*/
#define LOG_TAG "platform_gralloc4"
// #define ENABLE_DEBUG_LOG
#include <custom_log.h>
#include <inttypes.h>
#include <sync/sync.h>
#include "mali_gralloc_formats.h"
#include <drm_fourcc.h>
#include "platform_gralloc4.h"
#include <android/hardware/graphics/mapper/4.0/IMapper.h>
#include <gralloctypes/Gralloc4.h>
#ifdef ANDROID_S
#include <hardware/hardware_rockchip.h>
#endif
// #include <aidl/arm/graphics/ArmMetadataType.h>
using android::hardware::graphics::mapper::V4_0::Error;
using android::hardware::graphics::mapper::V4_0::IMapper;
using android::hardware::hidl_vec;
using android::gralloc4::MetadataType_PlaneLayouts;
using android::gralloc4::decodePlaneLayouts;
using android::gralloc4::MetadataType_Usage;
using android::gralloc4::decodeUsage;
using android::gralloc4::MetadataType_PlaneLayouts;
using android::gralloc4::decodePlaneLayouts;
using android::gralloc4::MetadataType_PixelFormatFourCC;
using android::gralloc4::decodePixelFormatFourCC;
using android::gralloc4::MetadataType_PixelFormatModifier;
using android::gralloc4::decodePixelFormatModifier;
using android::gralloc4::MetadataType_PixelFormatRequested;
using android::gralloc4::decodePixelFormatRequested;
using android::gralloc4::MetadataType_AllocationSize;
using android::gralloc4::decodeAllocationSize;
using android::gralloc4::MetadataType_LayerCount;
using android::gralloc4::decodeLayerCount;
using android::gralloc4::MetadataType_Dataspace;
using android::gralloc4::decodeDataspace;
using android::gralloc4::MetadataType_Crop;
using android::gralloc4::decodeCrop;
using android::gralloc4::MetadataType_Width;
using android::gralloc4::decodeWidth;
using android::gralloc4::MetadataType_Height;
using android::gralloc4::decodeHeight;
using android::gralloc4::MetadataType_Name;
using android::gralloc4::decodeName;
using aidl::android::hardware::graphics::common::Dataspace;
using aidl::android::hardware::graphics::common::PlaneLayout;
using aidl::android::hardware::graphics::common::ExtendableType;
using aidl::android::hardware::graphics::common::PlaneLayout;
using aidl::android::hardware::graphics::common::Rect;
using android::hardware::graphics::common::V1_2::PixelFormat;
#define GRALLOC_ARM_METADATA_TYPE_NAME "arm.graphics.ArmMetadataType"
const static IMapper::MetadataType ArmMetadataType_PLANE_FDS
{
GRALLOC_ARM_METADATA_TYPE_NAME,
// static_cast<int64_t>(aidl::arm::graphics::ArmMetadataType::PLANE_FDS)
1 // 就是上面的 'PLANE_FDS'
};
/* ---------------------------------------------------------------------------------------------------------
* External Function Prototypes (referenced in this file)
* ---------------------------------------------------------------------------------------------------------
*/
/* ---------------------------------------------------------------------------------------------------------
* Local Macros
* ---------------------------------------------------------------------------------------------------------
*/
namespace gralloc4 {
/* ---------------------------------------------------------------------------------------------------------
* Local Typedefs
* ---------------------------------------------------------------------------------------------------------
*/
/* ---------------------------------------------------------------------------------------------------------
* Local Function Prototypes
* ---------------------------------------------------------------------------------------------------------
*/
/* ---------------------------------------------------------------------------------------------------------
* Local Variables
* ---------------------------------------------------------------------------------------------------------
*/
static constexpr Error kTransactionError = Error::NO_RESOURCES;
/* ---------------------------------------------------------------------------------------------------------
* Global Variables
* ---------------------------------------------------------------------------------------------------------
*/
/* ---------------------------------------------------------------------------------------------------------
* Local Functions Implementation
* ---------------------------------------------------------------------------------------------------------
*/
static IMapper &get_service()
{
static android::sp<IMapper> cached_service = IMapper::getService();
return *cached_service;
}
template <typename T>
static int get_metadata(IMapper &mapper, buffer_handle_t handle, IMapper::MetadataType type,
android::status_t (*decode)(const hidl_vec<uint8_t> &, T *), T *value)
{
void *handle_arg = const_cast<native_handle_t *>(handle);
assert(handle_arg);
assert(value);
assert(decode);
int err = 0;
mapper.get(handle_arg, type, [&err, value, decode](Error error, const hidl_vec<uint8_t> &metadata)
{
if (error != Error::NONE)
{
err = android::BAD_VALUE;
return;
}
err = decode(metadata, value);
});
return err;
}
/*
* 参考 b_r25p1 gralloc 中的 drm_fourcc_from_handle() 实现.
* 目前未考虑 'modifier'
*/
uint64_t get_internal_format_from_fourcc(uint32_t fourcc, uint64_t modifier)
{
/* Clean the modifier bits in the internal format. */
struct table_entry
{
uint64_t internal; // 不带 modifier_bits
uint32_t fourcc;
};
static table_entry table[] = {
{ MALI_GRALLOC_FORMAT_INTERNAL_RAW16, DRM_FORMAT_R16 },
{ MALI_GRALLOC_FORMAT_INTERNAL_RGBA_8888, DRM_FORMAT_ABGR8888 },
{ MALI_GRALLOC_FORMAT_INTERNAL_BGRA_8888, DRM_FORMAT_ARGB8888 },
{ MALI_GRALLOC_FORMAT_INTERNAL_RGB_565, DRM_FORMAT_RGB565 },
{ MALI_GRALLOC_FORMAT_INTERNAL_RGBX_8888, DRM_FORMAT_XBGR8888 },
{ MALI_GRALLOC_FORMAT_INTERNAL_RGB_888, DRM_FORMAT_BGR888 },
{ MALI_GRALLOC_FORMAT_INTERNAL_RGBA_1010102, DRM_FORMAT_ABGR2101010 },
{ MALI_GRALLOC_FORMAT_INTERNAL_RGBA_16161616, DRM_FORMAT_ABGR16161616F },
{ MALI_GRALLOC_FORMAT_INTERNAL_YV12, DRM_FORMAT_YVU420 },
{ MALI_GRALLOC_FORMAT_INTERNAL_NV12, DRM_FORMAT_NV12 },
{ MALI_GRALLOC_FORMAT_INTERNAL_NV16, DRM_FORMAT_NV16 },
{ MALI_GRALLOC_FORMAT_INTERNAL_NV21, DRM_FORMAT_NV21 },
{ MALI_GRALLOC_FORMAT_INTERNAL_Y0L2, DRM_FORMAT_Y0L2 },
{ MALI_GRALLOC_FORMAT_INTERNAL_Y210, DRM_FORMAT_Y210 },
{ MALI_GRALLOC_FORMAT_INTERNAL_P010, DRM_FORMAT_P010 },
{ MALI_GRALLOC_FORMAT_INTERNAL_P210, DRM_FORMAT_P210 },
{ MALI_GRALLOC_FORMAT_INTERNAL_Y410, DRM_FORMAT_Y410 },
{ MALI_GRALLOC_FORMAT_INTERNAL_YUV422_8BIT, DRM_FORMAT_YUYV },
{ MALI_GRALLOC_FORMAT_INTERNAL_YUV420_8BIT_I, DRM_FORMAT_YUV420_8BIT },
{ MALI_GRALLOC_FORMAT_INTERNAL_YUV420_10BIT_I, DRM_FORMAT_YUV420_10BIT },
/* Deprecated legacy formats, mapped to MALI_GRALLOC_FORMAT_INTERNAL_YUV422_8BIT. */
{ HAL_PIXEL_FORMAT_YCbCr_422_I, DRM_FORMAT_YUYV },
/* Deprecated legacy formats, mapped to MALI_GRALLOC_FORMAT_INTERNAL_NV21. */
{ HAL_PIXEL_FORMAT_YCrCb_420_SP, DRM_FORMAT_NV21 },
/* Format introduced in Android P, mapped to MALI_GRALLOC_FORMAT_INTERNAL_P010. */
{ HAL_PIXEL_FORMAT_YCBCR_P010, DRM_FORMAT_P010 },
};
for (size_t i = 0; i < sizeof(table) / sizeof(table[0]); i++)
{
if (table[i].fourcc == fourcc)
{
return table[i].internal;
}
}
LOG_ALWAYS_FATAL("unexpected fourcc : 0x%x", fourcc);
return 0;
}
android::status_t static decodeArmPlaneFds(const hidl_vec<uint8_t>& input, std::vector<int64_t>* fds)
{
assert (fds != nullptr);
int64_t size = 0;
memcpy(&size, input.data(), sizeof(int64_t));
if (size < 0)
{
return android::BAD_VALUE;
}
fds->resize(size);
const uint8_t *tmp = input.data() + sizeof(int64_t);
memcpy(fds->data(), tmp, sizeof(int64_t) * size);
return android::NO_ERROR;
}
/* ---------------------------------------------------------------------------------------------------------
* Global Functions Implementation
* ---------------------------------------------------------------------------------------------------------
*/
uint64_t get_internal_format(buffer_handle_t handle)
{
auto &mapper = get_service();
uint32_t fourcc;
uint64_t modifier;
int format_requested;
/* 获取 format_fourcc. */
int err = get_metadata(mapper, handle, MetadataType_PixelFormatFourCC, decodePixelFormatFourCC, &fourcc);
assert(err == android::NO_ERROR);
// .trick : 目前的 gralloc 4.0 实现中,
// 为 req_format HAL_PIXEL_FORMAT_YCrCb_NV12_10(rk_nv12_10) 分配的 buffer 的格式是 MALI_GRALLOC_FORMAT_INTERNAL_P010.
// 预期 GPU 不应该且不会参与对这样的 buffer 的读写.
// VPU 和 VOP 可处理这样的 buffer, 预期的格式仍旧是 rk_nv12_10, 且将从 width 获取 byte_stride.
if ( DRM_FORMAT_P010 == fourcc )
{
err = get_format_requested(handle, &format_requested);
assert(err == android::NO_ERROR);
if ( HAL_PIXEL_FORMAT_YCrCb_NV12_10 == format_requested )
{
return HAL_PIXEL_FORMAT_YCrCb_NV12_10;
}
}
/* 获取 format_modifier. */
err = get_metadata(mapper, handle, MetadataType_PixelFormatModifier, decodePixelFormatModifier, &modifier);
assert(err == android::NO_ERROR);
/* 从 fourcc 得到 internal_format. */
return (get_internal_format_from_fourcc(fourcc, modifier) );
}
int get_pixel_format_modifier(buffer_handle_t handle, uint64_t* modifier)
{
auto &mapper = get_service();
int err = get_metadata(mapper, handle, MetadataType_PixelFormatModifier, decodePixelFormatModifier, modifier);
if (err != android::OK)
{
E("err : %d", err);
}
return err;
}
bool does_use_afbc_format(buffer_handle_t handle)
{
uint64_t modifier;
int err = get_pixel_format_modifier(handle, &modifier);
if (err != android::OK)
{
E("err : %d", err);
return false;
}
if ( AFBC_FORMAT_MOD_BLOCK_SIZE_16x16 == (modifier & AFBC_FORMAT_MOD_BLOCK_SIZE_16x16) )
{
D("buffer DOES uses AFBC format, modifier : 0x%" PRIx64, modifier);
return true;
}
else
{
D("buffer does NOT use AFBC format, modifier : 0x%" PRIx64, modifier);
return false;
}
}
int get_width(buffer_handle_t handle, uint64_t* width)
{
auto &mapper = get_service();
int err = get_metadata(mapper, handle, MetadataType_Width, decodeWidth, width);
if (err != android::OK)
{
E("err : %d", err);
}
return err;
}
int get_height(buffer_handle_t handle, uint64_t* height)
{
auto &mapper = get_service();
int err = get_metadata(mapper, handle, MetadataType_Height, decodeHeight, height);
if (err != android::OK)
{
E("err : %d", err);
}
return err;
}
int get_pixel_stride(buffer_handle_t handle, int* pixel_stride)
{
auto &mapper = get_service();
std::vector<PlaneLayout> layouts;
int format_requested;
int err = get_format_requested(handle, &format_requested);
if (err != android::OK )
{
E("err : %d", err);
return err;
}
/* 若 'format_requested' "不是" HAL_PIXEL_FORMAT_YCrCb_NV12_10, 则 ... */
if ( format_requested != HAL_PIXEL_FORMAT_YCrCb_NV12_10 )
{
err = get_metadata(mapper, handle, MetadataType_PlaneLayouts, decodePlaneLayouts, &layouts);
if (err != android::OK || layouts.size() < 1)
{
E("Failed to get plane layouts. err : %d", err);
return err;
}
if ( layouts.size() > 1 )
{
V("it's not reasonable to get global pixel_stride of buffer with planes more than 1.");
}
if ( 0 == layouts[0].sampleIncrementInBits )
{
E("sampleIncrementInBits is 0, unexpected.");
return -1;
}
else
{
*pixel_stride = layouts[0].strideInBytes * 8 / layouts[0].sampleIncrementInBits;
}
}
/* 否则, 即 'format_requested' "是" HAL_PIXEL_FORMAT_YCrCb_NV12_10, 则 ... */
else
{
uint64_t width;
int byte_stride;
err = get_width(handle, &width);
if (err != android::OK )
{
E("err : %d", err);
return err;
}
// .trick : from CSY : 分配 rk_video_decoder 输出 buffers 时, 要求的 byte_stride of buffer in NV12_10, 已经通过 width 传入.
// 原理上, NV12_10 的 pixel_stride 和 byte_stride 是不同的, 但是这里保留 之前 rk_drm_gralloc 的赋值方式.
byte_stride = (int)width;
*pixel_stride = byte_stride;
}
return err;
}
int get_byte_stride(buffer_handle_t handle, int* byte_stride)
{
auto &mapper = get_service();
std::vector<PlaneLayout> layouts;
int format_requested;
int err = get_format_requested(handle, &format_requested);
if (err != android::OK )
{
E("err : %d", err);
return err;
}
/* 若 'format_requested' "不是" HAL_PIXEL_FORMAT_YCrCb_NV12_10, 则 ... */
if ( format_requested != HAL_PIXEL_FORMAT_YCrCb_NV12_10 )
{
err = get_metadata(mapper, handle, MetadataType_PlaneLayouts, decodePlaneLayouts, &layouts);
if (err != android::OK || layouts.size() < 1)
{
E("Failed to get plane layouts. err : %d", err);
return err;
}
if ( layouts.size() > 1 )
{
V("it's not reasonable to get global byte_stride of buffer with planes more than 1.");
}
*byte_stride = (layouts[0].strideInBytes);
}
/* 否则, 即 'format_requested' "是" HAL_PIXEL_FORMAT_YCrCb_NV12_10, 则 ... */
else
{
uint64_t width;
err = get_width(handle, &width);
if (err != android::OK )
{
E("err : %d", err);
return err;
}
// .KP : from CSY : 分配 rk_video_decoder 输出 buffers 时, 要求的 byte_stride of buffer in NV12_10, 已经通过 width 传入.
*byte_stride = (int)width;
}
return err;
}
int get_format_requested(buffer_handle_t handle, int* format_requested)
{
auto &mapper = get_service();
// android::PixelFormat format; // *format_requested
PixelFormat format; // *format_requested
int err = get_metadata(mapper, handle, MetadataType_PixelFormatRequested, decodePixelFormatRequested, &format);
if (err != android::OK)
{
E("Failed to get pixel_format_requested. err : %d", err);
return err;
}
*format_requested = (int)format;
return err;
}
int get_usage(buffer_handle_t handle, uint64_t* usage)
{
auto &mapper = get_service();
int err = get_metadata(mapper, handle, MetadataType_Usage, decodeUsage, usage);
if (err != android::OK)
{
E("Failed to get pixel_format_requested. err : %d", err);
return err;
}
return err;
}
int get_allocation_size(buffer_handle_t handle, uint64_t* allocation_size)
{
auto &mapper = get_service();
int err = get_metadata(mapper, handle, MetadataType_AllocationSize, decodeAllocationSize, allocation_size);
if (err != android::OK)
{
E("Failed to get allocation_size. err : %d", err);
return err;
}
return err;
}
int get_share_fd(buffer_handle_t handle, int* share_fd)
{
auto &mapper = get_service();
std::vector<int64_t> fds;
int err = get_metadata(mapper, handle, ArmMetadataType_PLANE_FDS, decodeArmPlaneFds, &fds);
if (err != android::OK)
{
E("Failed to get plane_fds. err : %d", err);
return err;
}
assert (fds.size() > 0);
*share_fd = (int)(fds[0]);
return err;
}
int get_name(buffer_handle_t handle, std::string &name)
{
auto &mapper = get_service();
int err = get_metadata(mapper, handle, MetadataType_Name, decodeName, &name);
if (err != android::OK)
{
ALOGE("err : %d", err);
}
return err;
}
status_t importBuffer(buffer_handle_t rawHandle, buffer_handle_t* outHandle)
{
auto &mapper = get_service();
Error error;
auto ret = mapper.importBuffer(android::hardware::hidl_handle(rawHandle),
[&](const auto& tmpError, const auto& tmpBuffer)
{
error = tmpError;
if (error != Error::NONE)
{
return;
}
*outHandle = static_cast<buffer_handle_t>(tmpBuffer);
});
return static_cast<status_t>((ret.isOk()) ? error : kTransactionError);
}
void freeBuffer(buffer_handle_t handle)
{
auto &mapper = get_service();
auto buffer = const_cast<native_handle_t*>(handle);
auto ret = mapper.freeBuffer(buffer);
auto error = (ret.isOk()) ? static_cast<Error>(ret) : kTransactionError;
}
status_t lock(buffer_handle_t bufferHandle,
uint64_t usage,
int x,
int y,
int w,
int h,
void** outData)
{
auto &mapper = get_service();
auto buffer = const_cast<native_handle_t*>(bufferHandle);
IMapper::Rect accessRegion = {x, y, w, h};
android::hardware::hidl_handle acquireFenceHandle; // dummy
Error error;
auto ret = mapper.lock(buffer,
usage,
accessRegion,
acquireFenceHandle,
[&](const auto& tmpError, const auto& tmpData) {
error = tmpError;
if (error != Error::NONE) {
return;
}
*outData = tmpData;
});
error = (ret.isOk()) ? error : kTransactionError;
ALOGW_IF(error != Error::NONE, "lock(%p, ...) failed: %d", bufferHandle, error);
return static_cast<status_t>(error);
}
void unlock(buffer_handle_t bufferHandle)
{
auto &mapper = get_service();
auto buffer = const_cast<native_handle_t*>(bufferHandle);
int releaseFence = -1;
Error error;
auto ret = mapper.unlock(buffer,
[&](const auto& tmpError, const auto& tmpReleaseFence)
{
error = tmpError;
if (error != Error::NONE) {
return;
}
auto fenceHandle = tmpReleaseFence.getNativeHandle(); // 预期 unlock() 不会返回有效的 release_fence.
if (fenceHandle && fenceHandle->numFds == 1)
{
E("got unexpected valid fd of release_fence : %d", fenceHandle->data[0]);
int fd = dup(fenceHandle->data[0]);
if (fd >= 0) {
releaseFence = fd;
} else {
ALOGD("failed to dup unlock release fence");
sync_wait(fenceHandle->data[0], -1);
}
}
});
if (!ret.isOk()) {
error = kTransactionError;
}
if (error != Error::NONE) {
ALOGE("unlock(%p) failed with %d", buffer, error);
}
return;
}
} // namespace gralloc4