mirror of
https://github.com/mpv-player/mpv
synced 2025-02-13 18:37:10 +00:00
0780d38329
With the recent changes, mpv's internal mechanisms got synced to libavcodec's once more. Some things are still needed for filters (until the mechanism gets replaced), but there's no need to require other hwdec methods to use these fields. So remove them where they are unnecessary. Also fix some minor leaks in the dxva2 backends, and set the driver_name field in the Apple ones. Untested on Apple crap.
339 lines
9.2 KiB
C
339 lines
9.2 KiB
C
/*
|
|
* Copyright (c) 2016 Philip Langdale <philipl@overt.org>
|
|
*
|
|
* This file is part of mpv.
|
|
*
|
|
* mpv is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* mpv is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/*
|
|
* This hwdec implements an optimized output path using CUDA->OpenGL
|
|
* interop for frame data that is stored in CUDA device memory.
|
|
* Although it is not explicit in the code here, the only practical way
|
|
* to get data in this form is from the 'cuvid' decoder (aka NvDecode).
|
|
*
|
|
* For now, cuvid/NvDecode will always return images in NV12 format, even
|
|
* when decoding 10bit streams (there is some hardware dithering going on).
|
|
*/
|
|
|
|
#include "cuda_dynamic.h"
|
|
|
|
#include <libavutil/hwcontext.h>
|
|
#include <libavutil/hwcontext_cuda.h>
|
|
|
|
#include "video/out/gpu/hwdec.h"
|
|
#include "formats.h"
|
|
#include "options/m_config.h"
|
|
#include "ra_gl.h"
|
|
|
|
struct priv_owner {
|
|
struct mp_hwdec_ctx hwctx;
|
|
CUcontext display_ctx;
|
|
CUcontext decode_ctx;
|
|
};
|
|
|
|
struct priv {
|
|
struct mp_image layout;
|
|
CUgraphicsResource cu_res[4];
|
|
CUarray cu_array[4];
|
|
|
|
CUcontext display_ctx;
|
|
};
|
|
|
|
static int check_cu(struct ra_hwdec *hw, CUresult err, const char *func)
|
|
{
|
|
const char *err_name;
|
|
const char *err_string;
|
|
|
|
MP_TRACE(hw, "Calling %s\n", func);
|
|
|
|
if (err == CUDA_SUCCESS)
|
|
return 0;
|
|
|
|
cuGetErrorName(err, &err_name);
|
|
cuGetErrorString(err, &err_string);
|
|
|
|
MP_ERR(hw, "%s failed", func);
|
|
if (err_name && err_string)
|
|
MP_ERR(hw, " -> %s: %s", err_name, err_string);
|
|
MP_ERR(hw, "\n");
|
|
|
|
return -1;
|
|
}
|
|
|
|
#define CHECK_CU(x) check_cu(hw, (x), #x)
|
|
|
|
static int cuda_init(struct ra_hwdec *hw)
|
|
{
|
|
CUdevice display_dev;
|
|
AVBufferRef *hw_device_ctx = NULL;
|
|
CUcontext dummy;
|
|
unsigned int device_count;
|
|
int ret = 0;
|
|
struct priv_owner *p = hw->priv;
|
|
|
|
if (!ra_is_gl(hw->ra))
|
|
return -1;
|
|
|
|
GL *gl = ra_gl_get(hw->ra);
|
|
if (gl->version < 210 && gl->es < 300) {
|
|
MP_VERBOSE(hw, "need OpenGL >= 2.1 or OpenGL-ES >= 3.0\n");
|
|
return -1;
|
|
}
|
|
|
|
bool loaded = cuda_load();
|
|
if (!loaded) {
|
|
MP_VERBOSE(hw, "Failed to load CUDA symbols\n");
|
|
return -1;
|
|
}
|
|
|
|
ret = CHECK_CU(cuInit(0));
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
// Allocate display context
|
|
ret = CHECK_CU(cuGLGetDevices(&device_count, &display_dev, 1,
|
|
CU_GL_DEVICE_LIST_ALL));
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
ret = CHECK_CU(cuCtxCreate(&p->display_ctx, CU_CTX_SCHED_BLOCKING_SYNC,
|
|
display_dev));
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
p->decode_ctx = p->display_ctx;
|
|
|
|
int decode_dev_idx = -1;
|
|
mp_read_option_raw(hw->global, "cuda-decode-device", &m_option_type_choice,
|
|
&decode_dev_idx);
|
|
|
|
if (decode_dev_idx > -1) {
|
|
CUdevice decode_dev;
|
|
ret = CHECK_CU(cuDeviceGet(&decode_dev, decode_dev_idx));
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
if (decode_dev != display_dev) {
|
|
MP_INFO(hw, "Using separate decoder and display devices\n");
|
|
|
|
// Pop the display context. We won't use it again during init()
|
|
ret = CHECK_CU(cuCtxPopCurrent(&dummy));
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
ret = CHECK_CU(cuCtxCreate(&p->decode_ctx, CU_CTX_SCHED_BLOCKING_SYNC,
|
|
decode_dev));
|
|
if (ret < 0)
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
hw_device_ctx = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_CUDA);
|
|
if (!hw_device_ctx)
|
|
goto error;
|
|
|
|
AVHWDeviceContext *device_ctx = (void *)hw_device_ctx->data;
|
|
|
|
AVCUDADeviceContext *device_hwctx = device_ctx->hwctx;
|
|
device_hwctx->cuda_ctx = p->decode_ctx;
|
|
|
|
ret = av_hwdevice_ctx_init(hw_device_ctx);
|
|
if (ret < 0) {
|
|
MP_ERR(hw, "av_hwdevice_ctx_init failed\n");
|
|
goto error;
|
|
}
|
|
|
|
ret = CHECK_CU(cuCtxPopCurrent(&dummy));
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
p->hwctx = (struct mp_hwdec_ctx) {
|
|
.driver_name = hw->driver->name,
|
|
.av_device_ref = hw_device_ctx,
|
|
};
|
|
hwdec_devices_add(hw->devs, &p->hwctx);
|
|
return 0;
|
|
|
|
error:
|
|
av_buffer_unref(&hw_device_ctx);
|
|
CHECK_CU(cuCtxPopCurrent(&dummy));
|
|
|
|
return -1;
|
|
}
|
|
|
|
static void cuda_uninit(struct ra_hwdec *hw)
|
|
{
|
|
struct priv_owner *p = hw->priv;
|
|
|
|
hwdec_devices_remove(hw->devs, &p->hwctx);
|
|
av_buffer_unref(&p->hwctx.av_device_ref);
|
|
|
|
if (p->decode_ctx && p->decode_ctx != p->display_ctx)
|
|
CHECK_CU(cuCtxDestroy(p->decode_ctx));
|
|
|
|
if (p->display_ctx)
|
|
CHECK_CU(cuCtxDestroy(p->display_ctx));
|
|
}
|
|
|
|
#undef CHECK_CU
|
|
#define CHECK_CU(x) check_cu((mapper)->owner, (x), #x)
|
|
|
|
static int mapper_init(struct ra_hwdec_mapper *mapper)
|
|
{
|
|
struct priv_owner *p_owner = mapper->owner->priv;
|
|
struct priv *p = mapper->priv;
|
|
CUcontext dummy;
|
|
int ret = 0, eret = 0;
|
|
|
|
p->display_ctx = p_owner->display_ctx;
|
|
|
|
int imgfmt = mapper->src_params.hw_subfmt;
|
|
mapper->dst_params = mapper->src_params;
|
|
mapper->dst_params.imgfmt = imgfmt;
|
|
mapper->dst_params.hw_subfmt = 0;
|
|
|
|
mp_image_set_params(&p->layout, &mapper->dst_params);
|
|
|
|
struct ra_imgfmt_desc desc;
|
|
if (!ra_get_imgfmt_desc(mapper->ra, imgfmt, &desc)) {
|
|
MP_ERR(mapper, "Unsupported format: %s\n", mp_imgfmt_to_name(imgfmt));
|
|
return -1;
|
|
}
|
|
|
|
ret = CHECK_CU(cuCtxPushCurrent(p->display_ctx));
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
for (int n = 0; n < desc.num_planes; n++) {
|
|
const struct ra_format *format = desc.planes[n];
|
|
|
|
struct ra_tex_params params = {
|
|
.dimensions = 2,
|
|
.w = mp_image_plane_w(&p->layout, n),
|
|
.h = mp_image_plane_h(&p->layout, n),
|
|
.d = 1,
|
|
.format = format,
|
|
.render_src = true,
|
|
.src_linear = format->linear_filter,
|
|
};
|
|
|
|
mapper->tex[n] = ra_tex_create(mapper->ra, ¶ms);
|
|
if (!mapper->tex[n]) {
|
|
ret = -1;
|
|
goto error;
|
|
}
|
|
|
|
GLuint texture;
|
|
GLenum target;
|
|
ra_gl_get_raw_tex(mapper->ra, mapper->tex[n], &texture, &target);
|
|
|
|
ret = CHECK_CU(cuGraphicsGLRegisterImage(&p->cu_res[n], texture, target,
|
|
CU_GRAPHICS_REGISTER_FLAGS_WRITE_DISCARD));
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
ret = CHECK_CU(cuGraphicsMapResources(1, &p->cu_res[n], 0));
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
ret = CHECK_CU(cuGraphicsSubResourceGetMappedArray(&p->cu_array[n], p->cu_res[n],
|
|
0, 0));
|
|
if (ret < 0)
|
|
goto error;
|
|
|
|
ret = CHECK_CU(cuGraphicsUnmapResources(1, &p->cu_res[n], 0));
|
|
if (ret < 0)
|
|
goto error;
|
|
}
|
|
|
|
error:
|
|
eret = CHECK_CU(cuCtxPopCurrent(&dummy));
|
|
if (eret < 0)
|
|
return eret;
|
|
|
|
return ret;
|
|
}
|
|
|
|
static void mapper_uninit(struct ra_hwdec_mapper *mapper)
|
|
{
|
|
struct priv *p = mapper->priv;
|
|
CUcontext dummy;
|
|
|
|
// Don't bail if any CUDA calls fail. This is all best effort.
|
|
CHECK_CU(cuCtxPushCurrent(p->display_ctx));
|
|
for (int n = 0; n < 4; n++) {
|
|
if (p->cu_res[n] > 0)
|
|
CHECK_CU(cuGraphicsUnregisterResource(p->cu_res[n]));
|
|
p->cu_res[n] = 0;
|
|
ra_tex_free(mapper->ra, &mapper->tex[n]);
|
|
}
|
|
CHECK_CU(cuCtxPopCurrent(&dummy));
|
|
}
|
|
|
|
static void mapper_unmap(struct ra_hwdec_mapper *mapper)
|
|
{
|
|
}
|
|
|
|
static int mapper_map(struct ra_hwdec_mapper *mapper)
|
|
{
|
|
struct priv *p = mapper->priv;
|
|
CUcontext dummy;
|
|
int ret = 0, eret = 0;
|
|
|
|
ret = CHECK_CU(cuCtxPushCurrent(p->display_ctx));
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
for (int n = 0; n < p->layout.num_planes; n++) {
|
|
CUDA_MEMCPY2D cpy = {
|
|
.srcMemoryType = CU_MEMORYTYPE_DEVICE,
|
|
.dstMemoryType = CU_MEMORYTYPE_ARRAY,
|
|
.srcDevice = (CUdeviceptr)mapper->src->planes[n],
|
|
.srcPitch = mapper->src->stride[n],
|
|
.srcY = 0,
|
|
.dstArray = p->cu_array[n],
|
|
.WidthInBytes = mp_image_plane_w(&p->layout, n) *
|
|
mapper->tex[n]->params.format->pixel_size,
|
|
.Height = mp_image_plane_h(&p->layout, n),
|
|
};
|
|
ret = CHECK_CU(cuMemcpy2D(&cpy));
|
|
if (ret < 0)
|
|
goto error;
|
|
}
|
|
|
|
|
|
error:
|
|
eret = CHECK_CU(cuCtxPopCurrent(&dummy));
|
|
if (eret < 0)
|
|
return eret;
|
|
|
|
return ret;
|
|
}
|
|
|
|
const struct ra_hwdec_driver ra_hwdec_cuda = {
|
|
.name = "cuda-nvdec",
|
|
.imgfmts = {IMGFMT_CUDA, 0},
|
|
.priv_size = sizeof(struct priv_owner),
|
|
.init = cuda_init,
|
|
.uninit = cuda_uninit,
|
|
.mapper = &(const struct ra_hwdec_mapper_driver){
|
|
.priv_size = sizeof(struct priv),
|
|
.init = mapper_init,
|
|
.uninit = mapper_uninit,
|
|
.map = mapper_map,
|
|
.unmap = mapper_unmap,
|
|
},
|
|
};
|