mirror of
https://gitlab.freedesktop.org/mesa/mesa.git
synced 2026-03-18 21:00:33 +01:00
4afcd0c6d6
Although gbm_gralloc has not been maintained for a long time, it is still used in android-x86, BlissOS and WayDroid. Let's add support so that x86 drivers no longer need to request tiling flags from the kernel. Acked-by: Chia-I Wu <olvaffe@gmail.com> Acked-by: David Heidelberg <david.heidelberg@collabora.com> Tested-by: HMTheBoy154 <buingoc67@gmail.com> # BlissOS 15 & Mesa 23.3.2 Tested-by: Mauro Rossi <issor.oruam@gmail.com> # android-x86 for mesa 24.0.0-devel on Skylake GT2 Signed-off-by: Roman Stratiienko <r.stratiienko@gmail.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25380>
106 lines
2.8 KiB
C
106 lines
2.8 KiB
C
/*
|
|
* Mesa 3-D graphics library
|
|
*
|
|
* Copyright (C) 2023 Roman Stratiienko (r.stratiienko@gmail.com)
|
|
* SPDX-License-Identifier: MIT
|
|
*/
|
|
|
|
#include "u_gralloc_libdrm.h"
|
|
|
|
#include <assert.h>
|
|
#include <dlfcn.h>
|
|
#include <errno.h>
|
|
#include <string.h>
|
|
#include <hardware/gralloc.h>
|
|
|
|
#include "util/log.h"
|
|
#include "util/u_memory.h"
|
|
|
|
#include "u_gralloc_internal.h"
|
|
|
|
/* Despite minigbm becoming standard gralloc for many distributions, some
|
|
* users still rely on legacy grallocs, like gbm_gralloc that use a native
|
|
* handle header that is located at libdrm/android/gralloc_handle.h.
|
|
* Using this gralloc is not recommended for new distributions.
|
|
*/
|
|
|
|
struct libdrm_gralloc {
|
|
struct u_gralloc base;
|
|
gralloc_module_t *gralloc_module;
|
|
struct u_gralloc *fallback_gralloc;
|
|
};
|
|
|
|
static const char gbm_gralloc_module_name[] = "GBM Memory Allocator";
|
|
|
|
static int
|
|
get_buffer_info(struct u_gralloc *gralloc,
|
|
struct u_gralloc_buffer_handle *hnd,
|
|
struct u_gralloc_buffer_basic_info *out)
|
|
{
|
|
struct libdrm_gralloc *gr = (struct libdrm_gralloc *)gralloc;
|
|
struct gralloc_handle_t *handle = (struct gralloc_handle_t *)hnd->handle;
|
|
assert(handle->base.numFds == GRALLOC_HANDLE_NUM_FDS);
|
|
assert(handle->base.numInts == GRALLOC_HANDLE_NUM_INTS);
|
|
assert(handle->magic == GRALLOC_HANDLE_MAGIC);
|
|
|
|
if (handle->version != GRALLOC_HANDLE_VERSION)
|
|
mesa_loge("Unexpected gralloc handle version %d", handle->version);
|
|
|
|
assert(handle->version == GRALLOC_HANDLE_VERSION);
|
|
|
|
/* Query basic information using fallback gralloc */
|
|
u_gralloc_get_buffer_basic_info(gr->fallback_gralloc, hnd, out);
|
|
|
|
/* Fill the known data using libdrm gralloc handle */
|
|
out->modifier = handle->modifier;
|
|
out->strides[0] = handle->stride;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
destroy(struct u_gralloc *gralloc)
|
|
{
|
|
struct libdrm_gralloc *gr = (struct libdrm_gralloc *)gralloc;
|
|
if (gr->gralloc_module)
|
|
dlclose(gr->gralloc_module->common.dso);
|
|
|
|
if (gr->fallback_gralloc)
|
|
gr->fallback_gralloc->ops.destroy(gr->fallback_gralloc);
|
|
|
|
FREE(gr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct u_gralloc *
|
|
u_gralloc_libdrm_create()
|
|
{
|
|
struct libdrm_gralloc *gr = CALLOC_STRUCT(libdrm_gralloc);
|
|
int err = 0;
|
|
|
|
err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID,
|
|
(const hw_module_t **)&gr->gralloc_module);
|
|
|
|
if (err)
|
|
goto fail;
|
|
|
|
if (strcmp(gr->gralloc_module->common.name, gbm_gralloc_module_name) != 0)
|
|
goto fail;
|
|
|
|
gr->base.ops.get_buffer_basic_info = get_buffer_info;
|
|
gr->base.ops.destroy = destroy;
|
|
|
|
mesa_logw("Using gralloc header from libdrm/android/gralloc_handle.h. "
|
|
" This is not recommended for new distributions. "
|
|
" Initializing a fallback gralloc as a helper:");
|
|
|
|
gr->fallback_gralloc = u_gralloc_fallback_create();
|
|
|
|
return &gr->base;
|
|
|
|
fail:
|
|
destroy(&gr->base);
|
|
|
|
return NULL;
|
|
}
|