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kmsdrm: move FENCE FD props setting to SwapWindow(), where it belongs.

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This commit is contained in:
Manuel Alfayate Corchete 2020-08-25 16:18:49 +02:00
parent 3f38009b2f
commit 9316a8d979
3 changed files with 18 additions and 16 deletions
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12
src/video/kmsdrm/SDL_kmsdrmopengles.c
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@ -151,6 +151,18 @@ KMSDRM_GLES_SwapWindow(_THIS, SDL_Window * window)
return SDL_SetError("Failed to request prop changes for setting plane buffer and CRTC"); return SDL_SetError("Failed to request prop changes for setting plane buffer and CRTC");
} }
/* Set the IN_FENCE and OUT_FENCE props only here, since this is the only place
on which we're interested in managing who and when should access the buffers
that the display plane uses, and that's what these props are for. */
if (dispdata->kms_in_fence_fd != -1)
{
if (add_crtc_property(dispdata->atomic_req, dispdata->crtc, "OUT_FENCE_PTR",
VOID2U64(&dispdata->kms_out_fence_fd)) < 0)
return SDL_SetError("Failed to set CRTC OUT_FENCE_PTR prop");
if (add_plane_property(dispdata->atomic_req, dispdata->display_plane, "IN_FENCE_FD", dispdata->kms_in_fence_fd) < 0)
return SDL_SetError("Failed to set plane IN_FENCE_FD prop");
}
/* Issue the one and only atomic commit where all changes will be requested!. /* Issue the one and only atomic commit where all changes will be requested!.
We need e a non-blocking atomic commit for triple buffering, because we We need e a non-blocking atomic commit for triple buffering, because we
must not block on this atomic commit so we can re-enter program loop once more. */ must not block on this atomic commit so we can re-enter program loop once more. */

14
src/video/kmsdrm/SDL_kmsdrmvideo.c
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@ -170,7 +170,7 @@ static int add_connector_property(drmModeAtomicReq *req, struct connector *conne
return KMSDRM_drmModeAtomicAddProperty(req, connector->connector->connector_id, prop_id, value); return KMSDRM_drmModeAtomicAddProperty(req, connector->connector->connector_id, prop_id, value);
} }
static int add_crtc_property(drmModeAtomicReq *req, struct crtc *crtc, int add_crtc_property(drmModeAtomicReq *req, struct crtc *crtc,
const char *name, uint64_t value) const char *name, uint64_t value)
{ {
unsigned int i; unsigned int i;
@ -493,18 +493,6 @@ drm_atomic_set_plane_props(struct KMSDRM_PlaneInfo *info)
if (add_plane_property(dispdata->atomic_req, info->plane, "CRTC_Y", info->crtc_y) < 0) if (add_plane_property(dispdata->atomic_req, info->plane, "CRTC_Y", info->crtc_y) < 0)
return SDL_SetError("Failed to set plane CRTC_Y prop"); return SDL_SetError("Failed to set plane CRTC_Y prop");
/* Set the IN_FENCE and OUT_FENCE props only if we're operating on the display plane,
since that's the only plane for which we manage who and when should access the buffers
it uses. */
if (info->plane == dispdata->display_plane && dispdata->kms_in_fence_fd != -1)
{
if (add_crtc_property(dispdata->atomic_req, dispdata->crtc, "OUT_FENCE_PTR",
VOID2U64(&dispdata->kms_out_fence_fd)) < 0)
return SDL_SetError("Failed to set CRTC OUT_FENCE_PTR prop");
if (add_plane_property(dispdata->atomic_req, info->plane, "IN_FENCE_FD", dispdata->kms_in_fence_fd) < 0)
return SDL_SetError("Failed to set plane IN_FENCE_FD prop");
}
return 0; return 0;
} }

2
src/video/kmsdrm/SDL_kmsdrmvideo.h
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@ -161,6 +161,8 @@ void drm_atomic_waitpending(_THIS);
int drm_atomic_commit(_THIS, SDL_bool blocking); int drm_atomic_commit(_THIS, SDL_bool blocking);
int add_plane_property(drmModeAtomicReq *req, struct plane *plane, int add_plane_property(drmModeAtomicReq *req, struct plane *plane,
const char *name, uint64_t value); const char *name, uint64_t value);
int add_crtc_property(drmModeAtomicReq *req, struct crtc *crtc,
const char *name, uint64_t value);
int setup_plane(_THIS, struct plane **plane, uint32_t plane_type); int setup_plane(_THIS, struct plane **plane, uint32_t plane_type);
void free_plane(struct plane **plane); void free_plane(struct plane **plane);