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/*
* Copyright (C) 2010-2011 Chia-I Wu <olvaffe@gmail.com>
* Copyright (C) 2010-2011 LunarG Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/**
* @file gralloc.cpp
* 包含对 drm_module_t(drm_gralloc_module_t) 的具体实现, 以及 对 drm_alloc_device 的具体实现.
*/
#define LOG_TAG "GRALLOC-MOD"
// #define ENABLE_DEBUG_LOG
#include "custom_log.h"
#include <log/log.h>
#include <stdlib.h>
#include <stdarg.h>
#include <pthread.h>
#include <errno.h>
#include <vector>
#include "gralloc_helper.h"
#include "gralloc_drm.h"
#include "gralloc_drm_priv.h"
#include "gralloc_drm_handle.h"
#include <inttypes.h>
#include <utils/CallStack.h>
#if RK_DRM_GRALLOC
#include <cutils/atomic.h>
#endif
#define UNUSED(...) ( (void)(__VA_ARGS__) )
/*
* Initialize the DRM device object
*/
static int drm_init(struct drm_module_t *dmod)
{
int err = 0;
pthread_mutex_lock(&dmod->mutex);
if (!dmod->drm) {
/* 创建 gralloc_drm_device. */
dmod->drm = gralloc_drm_create();
if (!dmod->drm)
err = -EINVAL;
}
pthread_mutex_unlock(&dmod->mutex);
return err;
}
static int drm_mod_perform(const struct gralloc_module_t *mod, int op, ...)
{
struct drm_module_t *dmod = (struct drm_module_t *) mod;
va_list args;
int err;
err = drm_init(dmod);
if (err)
return err;
va_start(args, op);
switch (op) {
case static_cast<int>(GRALLOC_MODULE_PERFORM_GET_DRM_FD):
{
int *fd = va_arg(args, int *);
*fd = gralloc_drm_get_fd(dmod->drm);
err = 0;
}
break;
#ifdef USE_HWC2
case static_cast<int>(GRALLOC_MODULE_PERFORM_GET_RK_ASHMEM):
{
buffer_handle_t hnd = va_arg(args, buffer_handle_t);
struct rk_ashmem_t* rk_ashmem = va_arg(args, struct rk_ashmem_t*);
if (rk_ashmem != NULL)
err = gralloc_drm_handle_get_rk_ashmem(hnd,rk_ashmem);
else
err = -EINVAL;
}
break;
case static_cast<int>(GRALLOC_MODULE_PERFORM_SET_RK_ASHMEM):
{
buffer_handle_t hnd = va_arg(args, buffer_handle_t);
struct rk_ashmem_t* rk_ashmem = va_arg(args, struct rk_ashmem_t*);
if (rk_ashmem != NULL)
err = gralloc_drm_handle_set_rk_ashmem(hnd,rk_ashmem);
else
err = -EINVAL;
}
break;
#endif
case GRALLOC_MODULE_PERFORM_GET_HADNLE_PHY_ADDR:
{
buffer_handle_t hnd = va_arg(args, buffer_handle_t);
uint32_t *phy_addr = va_arg(args, uint32_t *);
if (phy_addr != NULL)
err = gralloc_drm_handle_get_phy_addr(hnd,phy_addr);
else
err = -EINVAL;
}
break;
case GRALLOC_MODULE_PERFORM_GET_HADNLE_PRIME_FD:
{
buffer_handle_t hnd = va_arg(args, buffer_handle_t);
int *fd = va_arg(args, int *);
if (fd != NULL)
err = gralloc_drm_handle_get_prime_fd(hnd,fd);
else
err = -EINVAL;
}
break;
case GRALLOC_MODULE_PERFORM_GET_HADNLE_ATTRIBUTES:
{
buffer_handle_t hnd = va_arg(args, buffer_handle_t);
std::vector<int> *attrs = va_arg(args, std::vector<int> *);
if (attrs != NULL)
err = gralloc_drm_handle_get_attributes(hnd, (void*)attrs);
else
err = -EINVAL;
}
break;
#if 0
case GRALLOC_MODULE_PERFORM_GET_INTERNAL_FORMAT:
{
buffer_handle_t hnd = va_arg(args, buffer_handle_t);
uint64_t *internal_format = va_arg(args, uint64_t *);
if(internal_format != NULL)
err = gralloc_drm_handle_get_internal_format(hnd, internal_format);
else
err = -EINVAL;
}
break;
#endif
case GRALLOC_MODULE_PERFORM_GET_HADNLE_WIDTH:
{
buffer_handle_t hnd = va_arg(args, buffer_handle_t);
int *width = va_arg(args, int *);
if(width != NULL)
err = gralloc_drm_handle_get_width(hnd, width);
else
err = -EINVAL;
}
break;
case GRALLOC_MODULE_PERFORM_GET_HADNLE_HEIGHT:
{
buffer_handle_t hnd = va_arg(args, buffer_handle_t);
int *height = va_arg(args, int *);
if(height != NULL)
err = gralloc_drm_handle_get_height(hnd, height);
else
err = -EINVAL;
}
break;
case GRALLOC_MODULE_PERFORM_GET_HADNLE_STRIDE:
{
buffer_handle_t hnd = va_arg(args, buffer_handle_t);
int *stride = va_arg(args, int *);
if(stride != NULL)
err = gralloc_drm_handle_get_stride(hnd, stride);
else
err = -EINVAL;
}
break;
case GRALLOC_MODULE_PERFORM_GET_HADNLE_BYTE_STRIDE:
{
buffer_handle_t hnd = va_arg(args, buffer_handle_t);
int *byte_stride = va_arg(args, int *);
if(byte_stride != NULL)
err = gralloc_drm_handle_get_byte_stride(hnd, byte_stride);
else
err = -EINVAL;
}
break;
case GRALLOC_MODULE_PERFORM_GET_HADNLE_FORMAT:
{
buffer_handle_t hnd = va_arg(args, buffer_handle_t);
int *format = va_arg(args, int *);
if(format != NULL)
err = gralloc_drm_handle_get_format(hnd, format);
else
err = -EINVAL;
}
break;
case GRALLOC_MODULE_PERFORM_GET_HADNLE_SIZE:
{
buffer_handle_t hnd = va_arg(args, buffer_handle_t);
int *size = va_arg(args, int *);
if(size != NULL)
err = gralloc_drm_handle_get_size(hnd, size);
else
err = -EINVAL;
}
break;
case GRALLOC_MODULE_PERFORM_GET_USAGE:
{
buffer_handle_t hnd = va_arg(args, buffer_handle_t);
int *usage = va_arg(args, int *);
if(usage != NULL)
err = gralloc_drm_handle_get_usage(hnd, usage);
else
err = -EINVAL;
}
break;
default:
err = -EINVAL;
break;
}
va_end(args);
return err;
}
/**
* drm_gralloc_module 的 registerBuffer 方法的具体实现.
*/
static int drm_mod_register_buffer(const gralloc_module_t *mod,
buffer_handle_t handle)
{
struct drm_module_t *dmod = (struct drm_module_t *) mod;
int err;
err = drm_init(dmod);
if (err)
return err;
return gralloc_drm_handle_register(handle, dmod->drm);
}
static int drm_mod_unregister_buffer(const gralloc_module_t *mod,
buffer_handle_t handle)
{
UNUSED(mod);
return gralloc_drm_handle_unregister(handle);
}
static int drm_mod_lock(const gralloc_module_t *mod, buffer_handle_t handle,
int usage, int x, int y, int w, int h, void **ptr)
{
struct gralloc_drm_bo_t *bo;
int err;
UNUSED(mod);
bo = gralloc_drm_bo_from_handle(handle);
if (!bo)
return -EINVAL;
err = gralloc_drm_bo_lock(bo, usage, x, y, w, h, ptr);
gralloc_drm_bo_decref(bo);
return err;
}
static int drm_mod_lock_ycbcr(gralloc_module_t const* module,
buffer_handle_t handle, int usage,
int l, int t, int w, int h, android_ycbcr *ycbcr)
{
struct gralloc_drm_bo_t *bo;
int ret = 0;
char *cpu_addr;
GRALLOC_UN_USED(module);
GRALLOC_UN_USED(l);
GRALLOC_UN_USED(t);
GRALLOC_UN_USED(w);
GRALLOC_UN_USED(h);
bo = gralloc_drm_bo_from_handle(handle);
if (!bo)
return -EINVAL;
struct gralloc_drm_handle_t* hnd = (struct gralloc_drm_handle_t*)handle;
if (usage & (GRALLOC_USAGE_SW_READ_MASK | GRALLOC_USAGE_SW_WRITE_MASK)) {
ret = gralloc_drm_bo_lock(bo, hnd->usage,
0, 0, hnd->width, hnd->height,(void **)&cpu_addr);
// this is currently only used by camera for yuv420sp
// if in future other formats are needed, store to private
// handle and change the below code based on private format.
int ystride;
switch (hnd->format) {
case HAL_PIXEL_FORMAT_YCrCb_420_SP: // NV21
ystride = hnd->stride;
ycbcr->y = (void*)cpu_addr;
ycbcr->cr = (void*)(cpu_addr + ystride * hnd->height); // 'cr' : V
ycbcr->cb = (void*)(cpu_addr + ystride * hnd->height + 1); // 'cb : U
ycbcr->ystride = ystride;
ycbcr->cstride = ystride;
ycbcr->chroma_step = 2;
memset(ycbcr->reserved, 0, sizeof(ycbcr->reserved));
break;
case HAL_PIXEL_FORMAT_YCrCb_NV12:
ystride = hnd->stride;
ycbcr->y = (void*)cpu_addr;
ycbcr->cr = (void*)(cpu_addr + ystride * hnd->height + 1);
ycbcr->cb = (void*)(cpu_addr + ystride * hnd->height);
ycbcr->ystride = ystride;
ycbcr->cstride = ystride;
ycbcr->chroma_step = 2;
memset(ycbcr->reserved, 0, sizeof(ycbcr->reserved));
break;
case HAL_PIXEL_FORMAT_YV12:
ystride = hnd->stride;
ycbcr->ystride = ystride;
ycbcr->cstride = (ystride/2 + 15) & ~15;
ycbcr->y = (void*)cpu_addr;
ycbcr->cr = (void*)(cpu_addr + ystride * hnd->height);
ycbcr->cb = (void*)(cpu_addr + ystride * hnd->height + ycbcr->cstride * hnd->height/2);
ycbcr->chroma_step = 1;
memset(ycbcr->reserved, 0, sizeof(ycbcr->reserved));
break;
case HAL_PIXEL_FORMAT_YCbCr_422_SP:
ystride = hnd->stride;
ycbcr->y = (void*)cpu_addr;
ycbcr->cb = (void*)(cpu_addr + ystride * hnd->height);
ycbcr->cr = (void*)(cpu_addr + ystride * hnd->height + 1);
ycbcr->ystride = ystride;
ycbcr->cstride = ystride;
ycbcr->chroma_step = 2;
memset(ycbcr->reserved, 0, sizeof(ycbcr->reserved));
break;
default:
ALOGE("%s: Invalid format passed: 0x%x", __FUNCTION__, hnd->format);
return -EINVAL;
}
}
gralloc_drm_bo_decref(bo);
return ret;
}
static int drm_mod_unlock(const gralloc_module_t *mod, buffer_handle_t handle)
{
struct gralloc_drm_bo_t *bo;
UNUSED(mod);
bo = gralloc_drm_bo_from_handle(handle);
if (!bo)
return -EINVAL;
gralloc_drm_bo_unlock(bo);
gralloc_drm_bo_decref(bo);
return 0;
}
static int drm_mod_close_gpu0(struct hw_device_t *dev)
{
struct drm_module_t *dmod = (struct drm_module_t *)dev->module;
struct alloc_device_t *alloc = (struct alloc_device_t *) dev;
#if RK_DRM_GRALLOC
android_atomic_dec(&dmod->refcount);
if(!dmod->refcount && dmod->drm)
{
gralloc_drm_destroy(dmod->drm);
dmod->drm = NULL;
}
#else
gralloc_drm_destroy(dmod->drm);
#endif
delete alloc;
return 0;
}
static int drm_mod_free_gpu0(alloc_device_t *dev, buffer_handle_t handle)
{
UNUSED(dev);
return gralloc_drm_free_bo_from_handle(handle);
}
static int drm_mod_alloc_gpu0(alloc_device_t *dev,
int w, int h, int format, int usage,
buffer_handle_t *handle, int *stride) // 'stride' : to return stride_in_pixel
{
struct drm_module_t *dmod = (struct drm_module_t *) dev->common.module;
struct gralloc_drm_bo_t *bo;
int bpp; // bytes_per_pixel
int actual_format; // format used actually in the native buffer. while, 'format' : requested_format.
int byte_stride;
D("enter, w : %d, h : %d, format : 0x%x, usage : 0x%x.", w, h, format, usage);
/*-------------------------------------------------------*/
/* workaround for "run cts -o -a armeabi-v7a --skip-all-system-status-check -m CtsNativeHardwareTestCases" */
if (format == 0x3 || format == 0x2b || format == 0x16)
{
if( (w <= 100 && h <= 100) &&
(usage == 0x200 || usage == 0x202 || usage == 0x100 || usage == 0x300 || usage == 0x120) )
{
ALOGE("rk_debug workaround for CtsNativeHardwareTestCases");
return -EINVAL;
}
}
/*-------------------------------------------------------*/
bo = gralloc_drm_bo_create(dmod->drm, w, h, format, usage);
if (!bo)
{
E("fail to create bo.");
return -ENOMEM;
}
*handle = gralloc_drm_bo_get_handle(bo, &byte_stride);
gralloc_drm_handle_get_format(*handle, &actual_format);
bpp = gralloc_drm_get_bpp(actual_format);
if (!bpp)
{
#if RK_DRM_GRALLOC
ALOGE("Cann't get valid bpp for format(0x%x)", actual_format);
#endif
return -EINVAL;
}
*stride = byte_stride / bpp;
return 0;
}
static int drm_mod_open_gpu0(struct drm_module_t *dmod, hw_device_t **dev)
{
struct alloc_device_t *alloc;
int err;
#if RK_DRM_GRALLOC
android_atomic_inc(&dmod->refcount);
#endif
err = drm_init(dmod);
if (err)
return err;
alloc = new alloc_device_t;
if (!alloc)
return -EINVAL;
/* 对 drm_alloc_device (drm_gralloc_module 对 alloc_device_t 的实现) 初始化. */ // .DP : drm_alloc_device
alloc->common.tag = HARDWARE_DEVICE_TAG;
alloc->common.version = 0;
alloc->common.module = &dmod->base.common;
alloc->common.close = drm_mod_close_gpu0;
alloc->alloc = drm_mod_alloc_gpu0;
alloc->free = drm_mod_free_gpu0;
alloc->dump = NULL;
*dev = &alloc->common;
return 0;
}
static int drm_mod_open(const struct hw_module_t *mod,
const char *name, struct hw_device_t **dev)
{
struct drm_module_t *dmod = (struct drm_module_t *) mod;
int err;
if (strcmp(name, GRALLOC_HARDWARE_GPU0) == 0)
err = drm_mod_open_gpu0(dmod, dev);
else
err = -EINVAL;
return err;
}
#define BAD_VALUE -3
static int drm_validate_buffer_size(
struct gralloc_module_t const* device, buffer_handle_t handle,
uint32_t w, uint32_t h, int32_t format, int usage,
uint32_t stride)
{
int bpp;
struct gralloc_drm_handle_t* hnd = (struct gralloc_drm_handle_t*)handle;
if ( w > hnd->width )
{
ALOGE("validateBufferSize failed, width is invaild");
return BAD_VALUE;
}
if ( h > hnd->height )
{
ALOGE("validateBufferSize failed, height is invaild");
return BAD_VALUE;
}
bpp = gralloc_drm_get_bpp(hnd->format);
if (stride > (hnd->stride / bpp ) )
{
if (hnd->stride > 0)
{
ALOGE("validateBufferSize failed, stride is invaild");
return BAD_VALUE;
}
else
{
ALOGE("validateBufferSize failed, hnd->stride is %d", hnd->stride);
}
}
if ( format != hnd->format )
{
if ( (format != HAL_PIXEL_FORMAT_YCbCr_420_888 || format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED) &&
hnd->format != HAL_PIXEL_FORMAT_YCrCb_NV12 )
{
ALOGE("validateBufferSize failed, format is invaild, format = %x, hndfmt = %x", format, hnd->format);
return BAD_VALUE;
}
}
UNUSED(device);
UNUSED(usage);
return 0;
}
static struct hw_module_methods_t drm_mod_methods = {
.open = drm_mod_open
};
drm_module_t::drm_module_t()
{
base.common.tag = HARDWARE_MODULE_TAG;
base.common.version_major = 1;
base.common.version_minor = 0;
base.common.id = GRALLOC_HARDWARE_MODULE_ID;
base.common.name = "DRM Memory Allocator";
base.common.author = "Chia-I Wu";
base.common.methods = &drm_mod_methods;
base.registerBuffer = drm_mod_register_buffer;
base.unregisterBuffer = drm_mod_unregister_buffer;
base.lock = drm_mod_lock;
base.lock_ycbcr = drm_mod_lock_ycbcr;
base.unlock = drm_mod_unlock;
base.perform = drm_mod_perform;
base.validateBufferSize = drm_validate_buffer_size;
mutex = PTHREAD_MUTEX_INITIALIZER;
drm = NULL;
#if RK_DRM_GRALLOC
refcount = 0;
#endif
}
struct drm_module_t HAL_MODULE_INFO_SYM;