Adding upstream version 0.37.0.upstream/0.37.0

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 334 insertions, 0 deletions

diff --git a/video/out/hwdec/hwdec_drmprime_overlay.c b/video/out/hwdec/hwdec_drmprime_overlay.c
new file mode 100644
index 0000000..6b6aae6
--- /dev/null
+++ b/video/out/hwdec/hwdec_drmprime_overlay.c
@@ -0,0 +1,334 @@
+/*
+ * 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/>.
+ */
+
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+#include <stdbool.h>
+
+#include <libavutil/hwcontext.h>
+#include <libavutil/hwcontext_drm.h>
+
+#include "video/hwdec.h"
+#include "common/msg.h"
+#include "options/m_config.h"
+#include "libmpv/render_gl.h"
+#include "video/out/drm_atomic.h"
+#include "video/out/drm_common.h"
+#include "video/out/drm_prime.h"
+#include "video/out/gpu/hwdec.h"
+#include "video/mp_image.h"
+
+extern const struct m_sub_options drm_conf;
+
+struct drm_frame {
+    struct drm_prime_framebuffer fb;
+    struct mp_image *image; // associated mpv image
+};
+
+struct priv {
+    struct mp_log *log;
+    struct mp_hwdec_ctx hwctx;
+
+    struct mp_image_params params;
+
+    struct drm_atomic_context *ctx;
+    struct drm_frame current_frame, last_frame, old_frame;
+
+    struct mp_rect src, dst;
+
+    int display_w, display_h;
+
+    struct drm_prime_handle_refs handle_refs;
+};
+
+static void set_current_frame(struct ra_hwdec *hw, struct drm_frame *frame)
+{
+    struct priv *p = hw->priv;
+
+    // frame will be on screen after next vsync
+    // current_frame is currently the displayed frame and will be replaced
+    // by frame after next vsync.
+    // We used old frame as triple buffering to make sure that the drm framebuffer
+    // is not being displayed when we release it.
+
+    if (p->ctx) {
+        drm_prime_destroy_framebuffer(p->log, p->ctx->fd, &p->old_frame.fb, &p->handle_refs);
+    }
+
+    mp_image_setrefp(&p->old_frame.image, p->last_frame.image);
+    p->old_frame.fb = p->last_frame.fb;
+
+    mp_image_setrefp(&p->last_frame.image, p->current_frame.image);
+    p->last_frame.fb = p->current_frame.fb;
+
+    if (frame) {
+        p->current_frame.fb = frame->fb;
+        mp_image_setrefp(&p->current_frame.image, frame->image);
+    } else {
+        memset(&p->current_frame.fb, 0, sizeof(p->current_frame.fb));
+        mp_image_setrefp(&p->current_frame.image, NULL);
+    }
+}
+
+static void scale_dst_rect(struct ra_hwdec *hw, int source_w, int source_h ,struct mp_rect *src, struct mp_rect *dst)
+{
+    struct priv *p = hw->priv;
+
+    // drm can allow to have a layer that has a different size from framebuffer
+    // we scale here the destination size to video mode
+    double hratio = p->display_w / (double)source_w;
+    double vratio = p->display_h / (double)source_h;
+    double ratio = hratio <= vratio ? hratio : vratio;
+
+    dst->x0 = src->x0 * ratio;
+    dst->x1 = src->x1 * ratio;
+    dst->y0 = src->y0 * ratio;
+    dst->y1 = src->y1 * ratio;
+
+    int offset_x = (p->display_w - ratio * source_w) / 2;
+    int offset_y = (p->display_h - ratio * source_h) / 2;
+
+    dst->x0 += offset_x;
+    dst->x1 += offset_x;
+    dst->y0 += offset_y;
+    dst->y1 += offset_y;
+}
+
+static void disable_video_plane(struct ra_hwdec *hw)
+{
+    struct priv *p = hw->priv;
+    if (!p->ctx)
+        return;
+
+    if (!p->ctx->drmprime_video_plane)
+        return;
+
+    // Disabling the drmprime video plane is needed on some devices when using
+    // the primary plane for video. Primary buffer can't be active with no
+    // framebuffer associated. So we need this function to commit it right away
+    // as mpv will free all framebuffers on playback end.
+    drmModeAtomicReqPtr request = drmModeAtomicAlloc();
+    if (request) {
+        drm_object_set_property(request, p->ctx->drmprime_video_plane, "FB_ID", 0);
+        drm_object_set_property(request, p->ctx->drmprime_video_plane, "CRTC_ID", 0);
+
+        int ret = drmModeAtomicCommit(p->ctx->fd, request,
+                                  0, NULL);
+
+        if (ret)
+            MP_ERR(hw, "Failed to commit disable plane request (code %d)", ret);
+        drmModeAtomicFree(request);
+    }
+}
+
+static int overlay_frame(struct ra_hwdec *hw, struct mp_image *hw_image,
+                         struct mp_rect *src, struct mp_rect *dst, bool newframe)
+{
+    struct priv *p = hw->priv;
+    AVDRMFrameDescriptor *desc = NULL;
+    drmModeAtomicReq *request = NULL;
+    struct drm_frame next_frame = {0};
+    int ret;
+
+    struct ra *ra = hw->ra_ctx->ra;
+
+    // grab atomic request from native resources
+    if (p->ctx) {
+        struct mpv_opengl_drm_params_v2 *drm_params;
+        drm_params = (mpv_opengl_drm_params_v2 *)ra_get_native_resource(ra, "drm_params_v2");
+        if (!drm_params) {
+            MP_ERR(hw, "Failed to retrieve drm params from native resources\n");
+            return -1;
+        }
+        if (drm_params->atomic_request_ptr) {
+            request = *drm_params->atomic_request_ptr;
+        } else {
+            MP_ERR(hw, "drm params pointer to atomic request is invalid\n");
+            return -1;
+        }
+    }
+
+    if (hw_image) {
+
+        // grab draw plane windowing info to eventually upscale the overlay
+        // as egl windows could be upscaled to draw plane.
+        struct mpv_opengl_drm_draw_surface_size *draw_surface_size = ra_get_native_resource(ra, "drm_draw_surface_size");
+        if (draw_surface_size) {
+            scale_dst_rect(hw, draw_surface_size->width, draw_surface_size->height, dst, &p->dst);
+        } else {
+            p->dst = *dst;
+        }
+        p->src = *src;
+
+        next_frame.image = hw_image;
+        desc = (AVDRMFrameDescriptor *)hw_image->planes[0];
+
+        if (desc) {
+            int srcw = p->src.x1 - p->src.x0;
+            int srch = p->src.y1 - p->src.y0;
+            int dstw = MP_ALIGN_UP(p->dst.x1 - p->dst.x0, 2);
+            int dsth = MP_ALIGN_UP(p->dst.y1 - p->dst.y0, 2);
+
+            if (drm_prime_create_framebuffer(p->log, p->ctx->fd, desc, srcw, srch, &next_frame.fb, &p->handle_refs)) {
+                ret = -1;
+                goto fail;
+            }
+
+            if (request) {
+                drm_object_set_property(request, p->ctx->drmprime_video_plane, "FB_ID", next_frame.fb.fb_id);
+                drm_object_set_property(request, p->ctx->drmprime_video_plane, "CRTC_ID", p->ctx->crtc->id);
+                drm_object_set_property(request, p->ctx->drmprime_video_plane, "SRC_X",   p->src.x0 << 16);
+                drm_object_set_property(request, p->ctx->drmprime_video_plane, "SRC_Y",   p->src.y0 << 16);
+                drm_object_set_property(request, p->ctx->drmprime_video_plane, "SRC_W",   srcw << 16);
+                drm_object_set_property(request, p->ctx->drmprime_video_plane, "SRC_H",   srch << 16);
+                drm_object_set_property(request, p->ctx->drmprime_video_plane, "CRTC_X",  MP_ALIGN_DOWN(p->dst.x0, 2));
+                drm_object_set_property(request, p->ctx->drmprime_video_plane, "CRTC_Y",  MP_ALIGN_DOWN(p->dst.y0, 2));
+                drm_object_set_property(request, p->ctx->drmprime_video_plane, "CRTC_W",  dstw);
+                drm_object_set_property(request, p->ctx->drmprime_video_plane, "CRTC_H",  dsth);
+                drm_object_set_property(request, p->ctx->drmprime_video_plane, "ZPOS",    0);
+            } else {
+                ret = drmModeSetPlane(p->ctx->fd, p->ctx->drmprime_video_plane->id, p->ctx->crtc->id, next_frame.fb.fb_id, 0,
+                                      MP_ALIGN_DOWN(p->dst.x0, 2), MP_ALIGN_DOWN(p->dst.y0, 2), dstw, dsth,
+                                      p->src.x0 << 16, p->src.y0 << 16 , srcw << 16, srch << 16);
+                if (ret < 0) {
+                    MP_ERR(hw, "Failed to set the drmprime video plane %d (buffer %d).\n",
+                           p->ctx->drmprime_video_plane->id, next_frame.fb.fb_id);
+                    goto fail;
+                }
+            }
+        }
+    } else {
+        disable_video_plane(hw);
+
+        while (p->old_frame.fb.fb_id)
+          set_current_frame(hw, NULL);
+    }
+
+    set_current_frame(hw, &next_frame);
+    return 0;
+
+ fail:
+    drm_prime_destroy_framebuffer(p->log, p->ctx->fd, &next_frame.fb, &p->handle_refs);
+    return ret;
+}
+
+static void uninit(struct ra_hwdec *hw)
+{
+    struct priv *p = hw->priv;
+
+    disable_video_plane(hw);
+    set_current_frame(hw, NULL);
+
+    hwdec_devices_remove(hw->devs, &p->hwctx);
+    av_buffer_unref(&p->hwctx.av_device_ref);
+
+    if (p->ctx) {
+        drm_atomic_destroy_context(p->ctx);
+        p->ctx = NULL;
+    }
+}
+
+static int init(struct ra_hwdec *hw)
+{
+    struct priv *p = hw->priv;
+    int draw_plane, drmprime_video_plane;
+
+    p->log = hw->log;
+
+    void *tmp = talloc_new(NULL);
+    struct drm_opts *opts = mp_get_config_group(tmp, hw->global, &drm_conf);
+    draw_plane = opts->draw_plane;
+    drmprime_video_plane = opts->drmprime_video_plane;
+    talloc_free(tmp);
+
+    struct mpv_opengl_drm_params_v2 *drm_params;
+
+    drm_params = ra_get_native_resource(hw->ra_ctx->ra, "drm_params_v2");
+    if (drm_params) {
+        p->ctx = drm_atomic_create_context(p->log, drm_params->fd, drm_params->crtc_id,
+                                           drm_params->connector_id, draw_plane, drmprime_video_plane);
+        if (!p->ctx) {
+            mp_err(p->log, "Failed to retrieve DRM atomic context.\n");
+            goto err;
+        }
+        if (!p->ctx->drmprime_video_plane) {
+            mp_warn(p->log, "No drmprime video plane. You might need to specify it manually using --drm-drmprime-video-plane\n");
+            goto err;
+        }
+    } else {
+        mp_verbose(p->log, "Failed to retrieve DRM fd from native display.\n");
+        goto err;
+    }
+
+    drmModeCrtcPtr crtc;
+    crtc = drmModeGetCrtc(p->ctx->fd, p->ctx->crtc->id);
+    if (crtc) {
+        p->display_w = crtc->mode.hdisplay;
+        p->display_h = crtc->mode.vdisplay;
+        drmModeFreeCrtc(crtc);
+    }
+
+    uint64_t has_prime;
+    if (drmGetCap(p->ctx->fd, DRM_CAP_PRIME, &has_prime) < 0) {
+        MP_ERR(hw, "Card does not support prime handles.\n");
+        goto err;
+    }
+
+    if (has_prime) {
+        drm_prime_init_handle_ref_count(p, &p->handle_refs);
+    }
+
+    disable_video_plane(hw);
+
+    p->hwctx = (struct mp_hwdec_ctx) {
+        .driver_name = hw->driver->name,
+        .hw_imgfmt = IMGFMT_DRMPRIME,
+    };
+
+    char *device = drmGetDeviceNameFromFd2(p->ctx->fd);
+    int ret = av_hwdevice_ctx_create(&p->hwctx.av_device_ref,
+                                     AV_HWDEVICE_TYPE_DRM, device, NULL, 0);
+
+    if (device)
+        free(device);
+
+    if (ret != 0) {
+        MP_VERBOSE(hw, "Failed to create hwdevice_ctx: %s\n", av_err2str(ret));
+        goto err;
+    }
+
+    hwdec_devices_add(hw->devs, &p->hwctx);
+
+    return 0;
+
+err:
+    uninit(hw);
+    return -1;
+}
+
+const struct ra_hwdec_driver ra_hwdec_drmprime_overlay = {
+    .name = "drmprime-overlay",
+    .priv_size = sizeof(struct priv),
+    .imgfmts = {IMGFMT_DRMPRIME, 0},
+    .init = init,
+    .overlay_frame = overlay_frame,
+    .uninit = uninit,
+};