vo/gpu: hwdec_cuda: Refactor gpu api specific code into separate files

The amount of code now present that's specific to Vulkan or OpenGL
has reached the point where we really want to split it out to
avoid a mess of #ifdefs.

At the same time, I'm moving the code to an api neutral location.

1 files changed, 0 insertions, 749 deletions

diff --git a/video/out/opengl/hwdec_cuda.c b/video/out/opengl/hwdec_cuda.c
deleted file mode 100644
index b2abd62f39..0000000000
--- a/video/out/opengl/hwdec_cuda.c
+++ /dev/null
@@ -1,749 +0,0 @@
-/*
- * 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
- * or CUDA->Vulkan 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
- * nvdec/cuvid decoder.
- */
-
-#include <unistd.h>
-
-#include <ffnvcodec/dynlink_loader.h>
-#include <libavutil/hwcontext.h>
-#include <libavutil/hwcontext_cuda.h>
-
-#include "video/out/gpu/hwdec.h"
-#include "video/out/gpu/utils.h"
-#include "options/m_config.h"
-#if HAVE_GL
-#include "video/out/opengl/formats.h"
-#include "video/out/opengl/ra_gl.h"
-#endif
-#if HAVE_VULKAN
-#include "video/out/placebo/ra_pl.h"
-#endif
-
-#if HAVE_WIN32_DESKTOP
-#include <versionhelpers.h>
-#endif
-
-struct priv_owner {
-    struct mp_hwdec_ctx hwctx;
-    CudaFunctions *cu;
-    CUcontext display_ctx;
-    CUcontext decode_ctx;
-
-    bool is_gl;
-    bool is_vk;
-
-    bool (*ext_init)(struct ra_hwdec_mapper *mapper,
-                     const struct ra_format *format, int n);
-    void (*ext_uninit)(struct ra_hwdec_mapper *mapper, int n);
-
-#if HAVE_VULKAN
-    enum pl_handle_type handle_type;
-#endif
-};
-
-struct ext_gl {
-#if HAVE_GL
-    CUgraphicsResource cu_res;
-#endif
-};
-
-struct ext_vk {
-#if HAVE_VULKAN
-    CUexternalMemory mem;
-    CUmipmappedArray mma;
-
-    const struct pl_tex *pltex;
-
-    const struct pl_sync *sync;
-
-    CUexternalSemaphore ss;
-    CUexternalSemaphore ws;
-#endif
-};
-
-struct priv {
-    struct mp_image layout;
-    CUarray cu_array[4];
-
-    CUcontext display_ctx;
-
-    struct ext_gl egl[4];
-    struct ext_vk evk[4];
-};
-
-static int check_cu(struct ra_hwdec *hw, CUresult err, const char *func)
-{
-    const char *err_name;
-    const char *err_string;
-
-    struct priv_owner *p = hw->priv;
-
-    MP_TRACE(hw, "Calling %s\n", func);
-
-    if (err == CUDA_SUCCESS)
-        return 0;
-
-    p->cu->cuGetErrorName(err, &err_name);
-    p->cu->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 bool cuda_ext_gl_init(struct ra_hwdec_mapper *mapper,
-                             const struct ra_format *format, int n);
-static bool cuda_ext_vk_init(struct ra_hwdec_mapper *mapper,
-                             const struct ra_format *format, int n);
-static void cuda_ext_gl_uninit(struct ra_hwdec_mapper *mapper, int n);
-static void cuda_ext_vk_uninit(struct ra_hwdec_mapper *mapper, int n);
-
-static bool gl_init(struct ra_hwdec *hw) {
-#if HAVE_GL
-    int ret = 0;
-    struct priv_owner *p = hw->priv;
-    CudaFunctions *cu = p->cu;
-
-    CUdevice display_dev;
-    unsigned int device_count;
-    ret = CHECK_CU(cu->cuGLGetDevices(&device_count, &display_dev, 1,
-                                      CU_GL_DEVICE_LIST_ALL));
-    if (ret < 0)
-        return false;
-
-    ret = CHECK_CU(cu->cuCtxCreate(&p->display_ctx, CU_CTX_SCHED_BLOCKING_SYNC,
-                                   display_dev));
-    if (ret < 0)
-        return false;
-
-    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) {
-        CUcontext dummy;
-        CUdevice decode_dev;
-        ret = CHECK_CU(cu->cuDeviceGet(&decode_dev, decode_dev_idx));
-        if (ret < 0) {
-            CHECK_CU(cu->cuCtxPopCurrent(&dummy));
-            return false;
-        }
-
-        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(cu->cuCtxPopCurrent(&dummy));
-            if (ret < 0)
-                return false;
-
-            ret = CHECK_CU(cu->cuCtxCreate(&p->decode_ctx, CU_CTX_SCHED_BLOCKING_SYNC,
-                                           decode_dev));
-            if (ret < 0)
-                return false;
-        }
-    }
-
-    p->ext_init = cuda_ext_gl_init;
-    p->ext_uninit = cuda_ext_gl_uninit;
-
-    return true;
-#else
-    return false;
-#endif
-}
-
-static bool vk_init(struct ra_hwdec *hw) {
-#if HAVE_VULKAN
-    int ret = 0;
-    struct priv_owner *p = hw->priv;
-    CudaFunctions *cu = p->cu;
-
-    int device_count;
-    ret = CHECK_CU(cu->cuDeviceGetCount(&device_count));
-    if (ret < 0)
-        return false;
-
-    CUdevice display_dev = -1;
-    for (int i = 0; i < device_count; i++) {
-        CUdevice dev;
-        ret = CHECK_CU(cu->cuDeviceGet(&dev, i));
-        if (ret < 0)
-            continue;
-
-        CUuuid uuid;
-        ret = CHECK_CU(cu->cuDeviceGetUuid(&uuid, dev));
-        if (ret < 0)
-            continue;
-
-        const struct pl_gpu *gpu = ra_pl_get(hw->ra);
-        if (memcmp(gpu->uuid, uuid.bytes, sizeof (gpu->uuid)) == 0) {
-            display_dev = dev;
-            break;
-        }
-    }
-
-    if (display_dev == -1) {
-        MP_ERR(hw, "Could not match Vulkan display device in CUDA.\n");
-        return false;
-    }
-
-    ret = CHECK_CU(cu->cuCtxCreate(&p->display_ctx, CU_CTX_SCHED_BLOCKING_SYNC,
-                                   display_dev));
-    if (ret < 0)
-        return false;
-
-    p->decode_ctx = p->display_ctx;
-
-    p->ext_init = cuda_ext_vk_init;
-    p->ext_uninit = cuda_ext_vk_uninit;
-
-    return true;
-#else
-    return false;
-#endif
-}
-
-static int cuda_init(struct ra_hwdec *hw)
-{
-    AVBufferRef *hw_device_ctx = NULL;
-    CUcontext dummy;
-    int ret = 0;
-    struct priv_owner *p = hw->priv;
-    CudaFunctions *cu;
-
-#if HAVE_GL
-    p->is_gl = ra_is_gl(hw->ra);
-    if (p->is_gl) {
-        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;
-        }
-    }
-#endif
-
-#if HAVE_VULKAN
-    p->handle_type =
-#if HAVE_WIN32_DESKTOP
-        IsWindows8OrGreater() ? PL_HANDLE_WIN32 : PL_HANDLE_WIN32_KMT;
-#else
-        PL_HANDLE_FD;
-#endif
-
-    const struct pl_gpu *gpu = ra_pl_get(hw->ra);
-    p->is_vk = gpu != NULL;
-    if (p->is_vk) {
-        if (!(gpu->export_caps.tex & p->handle_type)) {
-            MP_VERBOSE(hw, "CUDA hwdec with Vulkan requires exportable texture memory of type 0x%X.\n",
-                       p->handle_type);
-            return -1;
-        } else if (!(gpu->export_caps.sync & p->handle_type)) {
-            MP_VERBOSE(hw, "CUDA hwdec with Vulkan requires exportable semaphores of type 0x%X.\n",
-                       p->handle_type);
-            return -1;
-        }
-    }
-#endif
-
-    if (!p->is_gl && !p->is_vk) {
-        MP_VERBOSE(hw, "CUDA hwdec only works with OpenGL or Vulkan backends.\n");
-        return -1;
-    }
-
-    ret = cuda_load_functions(&p->cu, NULL);
-    if (ret != 0) {
-        MP_VERBOSE(hw, "Failed to load CUDA symbols\n");
-        return -1;
-    }
-    cu = p->cu;
-
-    if (p->is_vk && !cu->cuImportExternalMemory) {
-        MP_ERR(hw, "CUDA hwdec with Vulkan requires driver version 410.48 or newer.\n");
-        return -1;
-    }
-
-    ret = CHECK_CU(cu->cuInit(0));
-    if (ret < 0)
-        return -1;
-
-    // Allocate display context
-    if (p->is_gl && !gl_init(hw)) {
-        return -1;
-    } else if (p->is_vk && !vk_init(hw)) {
-        return -1;
-    }
-
-    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(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(cu->cuCtxPopCurrent(&dummy));
-
-    return -1;
-}
-
-static void cuda_uninit(struct ra_hwdec *hw)
-{
-    struct priv_owner *p = hw->priv;
-    CudaFunctions *cu = p->cu;
-
-    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(cu->cuCtxDestroy(p->decode_ctx));
-
-    if (p->display_ctx)
-        CHECK_CU(cu->cuCtxDestroy(p->display_ctx));
-
-    cuda_free_functions(&p->cu);
-}
-
-#undef CHECK_CU
-#define CHECK_CU(x) check_cu((mapper)->owner, (x), #x)
-
-#if HAVE_VULKAN
-static bool cuda_ext_vk_init(struct ra_hwdec_mapper *mapper,
-                             const struct ra_format *format, int n)
-{
-    struct priv_owner *p_owner = mapper->owner->priv;
-    struct priv *p = mapper->priv;
-    CudaFunctions *cu = p_owner->cu;
-    int mem_fd = -1, wait_fd = -1, signal_fd = -1;
-    int ret = 0;
-
-    struct ext_vk *evk = &p->evk[n];
-
-    const struct pl_gpu *gpu = ra_pl_get(mapper->ra);
-
-    struct pl_tex_params tex_params = {
-        .w = mp_image_plane_w(&p->layout, n),
-        .h = mp_image_plane_h(&p->layout, n),
-        .d = 0,
-        .format = ra_pl_fmt_get(format),
-        .sampleable = true,
-        .sample_mode = format->linear_filter ? PL_TEX_SAMPLE_LINEAR
-                                             : PL_TEX_SAMPLE_NEAREST,
-        .export_handle = p_owner->handle_type,
-    };
-
-    evk->pltex = pl_tex_create(gpu, &tex_params);
-    if (!evk->pltex) {
-        goto error;
-    }
-
-    struct ra_tex *ratex = talloc_ptrtype(NULL, ratex);
-    ret = mppl_wrap_tex(mapper->ra, evk->pltex, ratex);
-    if (!ret) {
-        pl_tex_destroy(gpu, &evk->pltex);
-        talloc_free(ratex);
-        goto error;
-    }
-    mapper->tex[n] = ratex;
-
-#if !HAVE_WIN32_DESKTOP
-    if (evk->pltex->params.export_handle == PL_HANDLE_FD) {
-        mem_fd = dup(evk->pltex->shared_mem.handle.fd);
-        if (mem_fd < 0) {
-            goto error;
-        }
-    }
-#endif
-
-    CUDA_EXTERNAL_MEMORY_HANDLE_DESC ext_desc = {
-#if HAVE_WIN32_DESKTOP
-        .type = IsWindows8OrGreater()
-            ? CU_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_WIN32
-            : CU_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_WIN32_KMT,
-        .handle.win32.handle = evk->pltex->shared_mem.handle.handle,
-#else
-        .type = CU_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD,
-        .handle.fd = mem_fd,
-#endif
-        .size = evk->pltex->shared_mem.size,
-        .flags = 0,
-    };
-    ret = CHECK_CU(cu->cuImportExternalMemory(&evk->mem, &ext_desc));
-    if (ret < 0)
-        goto error;
-    // CUDA takes ownership of imported memory
-    mem_fd = -1;
-
-    CUarray_format cufmt;
-    switch (format->pixel_size / format->num_components) {
-    case 1:
-        cufmt = CU_AD_FORMAT_UNSIGNED_INT8;
-        break;
-    case 2:
-        cufmt = CU_AD_FORMAT_UNSIGNED_INT16;
-        break;
-    default:
-        ret = -1;
-        goto error;
-    }
-
-    CUDA_EXTERNAL_MEMORY_MIPMAPPED_ARRAY_DESC tex_desc = {
-        .offset = evk->pltex->shared_mem.offset,
-        .arrayDesc = {
-            .Width = mp_image_plane_w(&p->layout, n),
-            .Height = mp_image_plane_h(&p->layout, n),
-            .Depth = 0,
-            .Format = cufmt,
-            .NumChannels = format->num_components,
-            .Flags = 0,
-        },
-        .numLevels = 1,
-    };
-
-    ret = CHECK_CU(cu->cuExternalMemoryGetMappedMipmappedArray(&evk->mma, evk->mem, &tex_desc));
-    if (ret < 0)
-        goto error;
-
-    ret = CHECK_CU(cu->cuMipmappedArrayGetLevel(&p->cu_array[n], evk->mma, 0));
-    if (ret < 0)
-        goto error;
-
-    evk->sync = pl_sync_create(gpu, p_owner->handle_type);
-    if (!evk->sync) {
-        ret = -1;
-        goto error;
-    }
-
-#if !HAVE_WIN32_DESKTOP
-    if (evk->sync->handle_type == PL_HANDLE_FD) {
-        wait_fd = dup(evk->sync->wait_handle.fd);
-        signal_fd = dup(evk->sync->signal_handle.fd);
-    }
-#endif
-
-    CUDA_EXTERNAL_SEMAPHORE_HANDLE_DESC w_desc = {
-#if HAVE_WIN32_DESKTOP
-        .type = IsWindows8OrGreater()
-            ? CU_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_WIN32
-            : CU_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_WIN32_KMT,
-        .handle.win32.handle = evk->sync->wait_handle.handle,
-#else
-        .type = CU_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD,
-        .handle.fd = wait_fd,
-#endif
-    };
-    ret = CHECK_CU(cu->cuImportExternalSemaphore(&evk->ws, &w_desc));
-    if (ret < 0)
-        goto error;
-    wait_fd = -1;
-
-    CUDA_EXTERNAL_SEMAPHORE_HANDLE_DESC s_desc = {
-#if HAVE_WIN32_DESKTOP
-        .type = IsWindows8OrGreater()
-            ? CU_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_WIN32
-            : CU_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_WIN32_KMT,
-        .handle.win32.handle = evk->sync->signal_handle.handle,
-#else
-        .type = CU_EXTERNAL_MEMORY_HANDLE_TYPE_OPAQUE_FD,
-        .handle.fd = signal_fd,
-#endif
-    };
-
-    ret = CHECK_CU(cu->cuImportExternalSemaphore(&evk->ss, &s_desc));
-    if (ret < 0)
-        goto error;
-    signal_fd = -1;
-
-    return true;
-
-error:
-    MP_ERR(mapper, "cuda_ext_vk_init failed\n");
-    if (mem_fd > -1)
-        close(mem_fd);
-    if (wait_fd > -1)
-        close(wait_fd);
-    if (signal_fd > -1)
-        close(signal_fd);
-    return false;
-}
-
-static void cuda_ext_vk_uninit(struct ra_hwdec_mapper *mapper, int n)
-{
-    struct priv_owner *p_owner = mapper->owner->priv;
-    struct priv *p = mapper->priv;
-    CudaFunctions *cu = p_owner->cu;
-
-    struct ext_vk *evk = &p->evk[n];
-    if (evk->mma) {
-        CHECK_CU(cu->cuMipmappedArrayDestroy(evk->mma));
-        evk->mma = 0;
-    }
-    if (evk->mem) {
-        CHECK_CU(cu->cuDestroyExternalMemory(evk->mem));
-        evk->mem = 0;
-    }
-    if (evk->ss) {
-        CHECK_CU(cu->cuDestroyExternalSemaphore(evk->ss));
-        evk->ss = 0;
-    }
-    if (evk->ws) {
-        CHECK_CU(cu->cuDestroyExternalSemaphore(evk->ws));
-        evk->ws = 0;
-    }
-    pl_sync_destroy(ra_pl_get(mapper->ra), &evk->sync);
-}
-#endif // HAVE_VULKAN
-
-#if HAVE_GL
-static bool cuda_ext_gl_init(struct ra_hwdec_mapper *mapper,
-                             const struct ra_format *format, int n)
-{
-    struct priv_owner *p_owner = mapper->owner->priv;
-    struct priv *p = mapper->priv;
-    CudaFunctions *cu = p_owner->cu;
-    int ret = 0;
-    CUcontext dummy;
-
-    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, &params);
-    if (!mapper->tex[n]) {
-        goto error;
-    }
-
-    GLuint texture;
-    GLenum target;
-    ra_gl_get_raw_tex(mapper->ra, mapper->tex[n], &texture, &target);
-
-    ret = CHECK_CU(cu->cuGraphicsGLRegisterImage(&p->egl[n].cu_res, texture, target,
-                                                 CU_GRAPHICS_REGISTER_FLAGS_WRITE_DISCARD));
-    if (ret < 0)
-        goto error;
-
-    ret = CHECK_CU(cu->cuGraphicsMapResources(1, &p->egl[n].cu_res, 0));
-    if (ret < 0)
-        goto error;
-
-    ret = CHECK_CU(cu->cuGraphicsSubResourceGetMappedArray(&p->cu_array[n], p->egl[n].cu_res,
-                                                           0, 0));
-    if (ret < 0)
-        goto error;
-
-    ret = CHECK_CU(cu->cuGraphicsUnmapResources(1, &p->egl[n].cu_res, 0));
-    if (ret < 0)
-        goto error;
-
-    return true;
-
-error:
-    CHECK_CU(cu->cuCtxPopCurrent(&dummy));
-    return false;
-}
-
-static void cuda_ext_gl_uninit(struct ra_hwdec_mapper *mapper, int n)
-{
-    struct priv_owner *p_owner = mapper->owner->priv;
-    struct priv *p = mapper->priv;
-    CudaFunctions *cu = p_owner->cu;
-
-    struct ext_gl *egl = &p->egl[n];
-    if (egl->cu_res) {
-        CHECK_CU(cu->cuGraphicsUnregisterResource(p->egl[n].cu_res));
-        egl->cu_res = 0;
-    }
-}
-#endif // HAVE_GL
-
-static int mapper_init(struct ra_hwdec_mapper *mapper)
-{
-    struct priv_owner *p_owner = mapper->owner->priv;
-    struct priv *p = mapper->priv;
-    CUcontext dummy;
-    CudaFunctions *cu = p_owner->cu;
-    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(cu->cuCtxPushCurrent(p->display_ctx));
-    if (ret < 0)
-        return ret;
-
-    for (int n = 0; n < desc.num_planes; n++) {
-        if (!p_owner->ext_init(mapper, desc.planes[n], n))
-            goto error;
-    }
-
- error:
-    eret = CHECK_CU(cu->cuCtxPopCurrent(&dummy));
-    if (eret < 0)
-        return eret;
-
-    return ret;
-}
-
-static void mapper_uninit(struct ra_hwdec_mapper *mapper)
-{
-    struct priv *p = mapper->priv;
-    struct priv_owner *p_owner = mapper->owner->priv;
-    CudaFunctions *cu = p_owner->cu;
-    CUcontext dummy;
-
-    // Don't bail if any CUDA calls fail. This is all best effort.
-    CHECK_CU(cu->cuCtxPushCurrent(p->display_ctx));
-    for (int n = 0; n < 4; n++) {
-        p_owner->ext_uninit(mapper, n);
-        ra_tex_free(mapper->ra, &mapper->tex[n]);
-    }
-    CHECK_CU(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;
-    struct priv_owner *p_owner = mapper->owner->priv;
-    CudaFunctions *cu = p_owner->cu;
-    CUcontext dummy;
-    int ret = 0, eret = 0;
-
-    ret = CHECK_CU(cu->cuCtxPushCurrent(p->display_ctx));
-    if (ret < 0)
-        return ret;
-
-    for (int n = 0; n < p->layout.num_planes; n++) {
-#if HAVE_VULKAN
-        if (p_owner->is_vk) {
-            ret = pl_tex_export(ra_pl_get(mapper->ra),
-                                p->evk[n].pltex, p->evk[n].sync);
-            if (!ret)
-                goto error;
-
-            CUDA_EXTERNAL_SEMAPHORE_WAIT_PARAMS wp = { 0, };
-            ret = CHECK_CU(cu->cuWaitExternalSemaphoresAsync(&p->evk[n].ws,
-                                                             &wp, 1, 0));
-            if (ret < 0)
-                goto error;
-        }
-#endif
-        CUDA_MEMCPY2D cpy = {
-            .srcMemoryType = CU_MEMORYTYPE_DEVICE,
-            .srcDevice     = (CUdeviceptr)mapper->src->planes[n],
-            .srcPitch      = mapper->src->stride[n],
-            .srcY          = 0,
-            .dstMemoryType = CU_MEMORYTYPE_ARRAY,
-            .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(cu->cuMemcpy2DAsync(&cpy, 0));
-        if (ret < 0)
-            goto error;
-#if HAVE_VULKAN
-        if (p_owner->is_vk) {
-            CUDA_EXTERNAL_SEMAPHORE_SIGNAL_PARAMS sp = { 0, };
-            ret = CHECK_CU(cu->cuSignalExternalSemaphoresAsync(&p->evk[n].ss,
-                                                               &sp, 1, 0));
-            if (ret < 0)
-                goto error;
-        }
-#endif
-    }
-
- error:
-   eret = CHECK_CU(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,
-    },
-};