[PATCH v14 27/41] compositor-drm: Extract drm_fb_addfb into a helper
Daniel Stone
daniels at collabora.com
Wed Dec 20 12:26:44 UTC 2017
We currently do the same thing in two places, and will soon have a
third.
Signed-off-by: Daniel Stone <daniels at collabora.com>
---
libweston/compositor-drm.c | 93 ++++++++++++++++++++++++----------------------
1 file changed, 48 insertions(+), 45 deletions(-)
diff --git a/libweston/compositor-drm.c b/libweston/compositor-drm.c
index e6b5efba0..09fa10f5f 100644
--- a/libweston/compositor-drm.c
+++ b/libweston/compositor-drm.c
@@ -288,7 +288,10 @@ struct drm_fb {
int refcnt;
- uint32_t fb_id, stride, handle, size;
+ uint32_t fb_id, size;
+ uint32_t handles[4];
+ uint32_t strides[4];
+ uint32_t offsets[4];
const struct pixel_format_info *format;
int width, height;
int fd;
@@ -821,7 +824,7 @@ drm_fb_destroy_dumb(struct drm_fb *fb)
munmap(fb->map, fb->size);
memset(&destroy_arg, 0, sizeof(destroy_arg));
- destroy_arg.handle = fb->handle;
+ destroy_arg.handle = fb->handles[0];
drmIoctl(fb->fd, DRM_IOCTL_MODE_DESTROY_DUMB, &destroy_arg);
drm_fb_destroy(fb);
@@ -837,6 +840,32 @@ drm_fb_destroy_gbm(struct gbm_bo *bo, void *data)
drm_fb_destroy(fb);
}
+static int
+drm_fb_addfb(struct drm_fb *fb)
+{
+ int ret;
+
+ ret = drmModeAddFB2(fb->fd, fb->width, fb->height, fb->format->format,
+ fb->handles, fb->strides, fb->offsets, &fb->fb_id,
+ 0);
+ if (ret == 0)
+ return 0;
+
+ /* Legacy AddFB can't always infer the format from depth/bpp alone, so
+ * check if our format is one of the lucky ones. */
+ if (!fb->format->depth || !fb->format->bpp)
+ return ret;
+
+ /* Cannot fall back to AddFB for multi-planar formats either. */
+ if (fb->handles[1] || fb->handles[2] || fb->handles[3])
+ return ret;
+
+ ret = drmModeAddFB(fb->fd, fb->width, fb->height,
+ fb->format->depth, fb->format->bpp,
+ fb->strides[0], fb->handles[0], &fb->fb_id);
+ return ret;
+}
+
static struct drm_fb *
drm_fb_create_dumb(struct drm_backend *b, int width, int height,
uint32_t format)
@@ -847,12 +876,10 @@ drm_fb_create_dumb(struct drm_backend *b, int width, int height,
struct drm_mode_create_dumb create_arg;
struct drm_mode_destroy_dumb destroy_arg;
struct drm_mode_map_dumb map_arg;
- uint32_t handles[4] = { 0 }, pitches[4] = { 0 }, offsets[4] = { 0 };
fb = zalloc(sizeof *fb);
if (!fb)
return NULL;
-
fb->refcnt = 1;
fb->format = pixel_format_get_info(format);
@@ -878,32 +905,20 @@ drm_fb_create_dumb(struct drm_backend *b, int width, int height,
goto err_fb;
fb->type = BUFFER_PIXMAN_DUMB;
- fb->handle = create_arg.handle;
- fb->stride = create_arg.pitch;
+ fb->handles[0] = create_arg.handle;
+ fb->strides[0] = create_arg.pitch;
fb->size = create_arg.size;
fb->width = width;
fb->height = height;
fb->fd = b->drm.fd;
- ret = -1;
-
- handles[0] = fb->handle;
- pitches[0] = fb->stride;
- offsets[0] = 0;
-
- ret = drmModeAddFB2(b->drm.fd, width, height, fb->format->format,
- handles, pitches, offsets, &fb->fb_id, 0);
- if (ret) {
- ret = drmModeAddFB(b->drm.fd, width, height,
- fb->format->depth, fb->format->bpp,
- fb->stride, fb->handle, &fb->fb_id);
- }
-
- if (ret)
+ if (drm_fb_addfb(fb) != 0) {
+ weston_log("failed to create kms fb: %m\n");
goto err_bo;
+ }
memset(&map_arg, 0, sizeof map_arg);
- map_arg.handle = fb->handle;
+ map_arg.handle = fb->handles[0];
ret = drmIoctl(fb->fd, DRM_IOCTL_MODE_MAP_DUMB, &map_arg);
if (ret)
goto err_add_fb;
@@ -938,8 +953,6 @@ drm_fb_get_from_bo(struct gbm_bo *bo, struct drm_backend *backend,
bool is_opaque, enum drm_fb_type type)
{
struct drm_fb *fb = gbm_bo_get_user_data(bo);
- uint32_t handles[4] = { 0 }, pitches[4] = { 0 }, offsets[4] = { 0 };
- int ret;
if (fb) {
assert(fb->type == type);
@@ -956,10 +969,10 @@ drm_fb_get_from_bo(struct gbm_bo *bo, struct drm_backend *backend,
fb->width = gbm_bo_get_width(bo);
fb->height = gbm_bo_get_height(bo);
- fb->stride = gbm_bo_get_stride(bo);
- fb->handle = gbm_bo_get_handle(bo).u32;
+ fb->strides[0] = gbm_bo_get_stride(bo);
+ fb->handles[0] = gbm_bo_get_handle(bo).u32;
fb->format = pixel_format_get_info(gbm_bo_get_format(bo));
- fb->size = fb->stride * fb->height;
+ fb->size = fb->strides[0] * fb->height;
fb->fd = backend->drm.fd;
if (!fb->format) {
@@ -979,19 +992,7 @@ drm_fb_get_from_bo(struct gbm_bo *bo, struct drm_backend *backend,
goto err_free;
}
- handles[0] = fb->handle;
- pitches[0] = fb->stride;
- offsets[0] = 0;
-
- ret = drmModeAddFB2(backend->drm.fd, fb->width, fb->height,
- fb->format->format, handles, pitches, offsets,
- &fb->fb_id, 0);
- if (ret && fb->format->depth && fb->format->bpp)
- ret = drmModeAddFB(backend->drm.fd, fb->width, fb->height,
- fb->format->depth, fb->format->bpp,
- fb->stride, fb->handle, &fb->fb_id);
-
- if (ret) {
+ if (drm_fb_addfb(fb) != 0) {
weston_log("failed to create kms fb: %m\n");
goto err_free;
}
@@ -1941,8 +1942,10 @@ drm_output_apply_state_legacy(struct drm_output_state *state)
assert(scanout_state->dest_h == scanout_state->src_h >> 16);
mode = to_drm_mode(output->base.current_mode);
- if (backend->state_invalid || !scanout_plane->state_cur->fb ||
- scanout_plane->state_cur->fb->stride != scanout_state->fb->stride) {
+ if (backend->state_invalid ||
+ !scanout_plane->state_cur->fb ||
+ scanout_plane->state_cur->fb->strides[0] !=
+ scanout_state->fb->strides[0]) {
ret = drmModeSetCrtc(backend->drm.fd, output->crtc_id,
scanout_state->fb->fb_id,
0, 0,
@@ -3989,7 +3992,7 @@ drm_output_init_pixman(struct drm_output *output, struct drm_backend *b)
output->image[i] =
pixman_image_create_bits(pixman_format, w, h,
output->dumb[i]->map,
- output->dumb[i]->stride);
+ output->dumb[i]->strides[0]);
if (!output->image[i])
goto err;
}
@@ -5285,7 +5288,7 @@ recorder_frame_notify(struct wl_listener *listener, void *data)
return;
ret = drmPrimeHandleToFD(b->drm.fd,
- output->scanout_plane->state_cur->fb->handle,
+ output->scanout_plane->state_cur->fb->handles[0],
DRM_CLOEXEC, &fd);
if (ret) {
weston_log("[libva recorder] "
@@ -5294,7 +5297,7 @@ recorder_frame_notify(struct wl_listener *listener, void *data)
}
ret = vaapi_recorder_frame(output->recorder, fd,
- output->scanout_plane->state_cur->fb->stride);
+ output->scanout_plane->state_cur->fb->strides[0]);
if (ret < 0) {
weston_log("[libva recorder] aborted: %m\n");
recorder_destroy(output);
--
2.14.3
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