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simple-dmabuf-drm: support DRM_FORMAT_LINEAR for NV12 as well 

This makes --import-format=NV12 testable on e.g. intel

We only set nv12_format_found to true if we found that format and at
least one understood modifier. Store modifier verbatim instead of using
a boolean flag. Last advertised and supported modifier currently wins.

The NV12 DRM_FORMAT_LINEAR image should be green in the upper left
corner and white in the lower right.

Signed-off-by: Guido Günther <agx@sigxcpu.org>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
This commit is contained in:
Guido Günther 2018-05-28 17:41:57 +02:00 committed by Pekka Paalanen
parent 74742e0525
commit da1888356e
1 changed files with 38 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
clients/simple-dmabuf-drm.c
View File

@ -79,7 +79,7 @@ struct display {
struct zwp_linux_dmabuf_v1 *dmabuf;
int xrgb8888_format_found;
int nv12_format_found;
int nv12_modifier_found;
uint64_t nv12_modifier;
int req_dmabuf_immediate;
int req_dmabuf_modifiers;
};
@ -324,7 +324,7 @@ etna_device_destroy(struct buffer *buf)
#endif /* HAVE_LIBDRM_ENTAVIV */
static void
fill_content(struct buffer *my_buf)
fill_content(struct buffer *my_buf, uint64_t modifier)
{
int x = 0, y = 0;
uint32_t *pix;
@ -332,11 +332,31 @@ fill_content(struct buffer *my_buf)
assert(my_buf->mmap);
if (my_buf->format == DRM_FORMAT_NV12) {
pix = (uint32_t *) my_buf->mmap;
for (y = 0; y < my_buf->height; y++)
memcpy(&pix[y * my_buf->width / 4],
&nv12_tiled[my_buf->width * y / 4],
my_buf->width);
if (modifier == DRM_FORMAT_MOD_SAMSUNG_64_32_TILE) {
pix = (uint32_t *) my_buf->mmap;
for (y = 0; y < my_buf->height; y++)
memcpy(&pix[y * my_buf->width / 4],
&nv12_tiled[my_buf->width * y / 4],
my_buf->width);
}
else if (modifier == DRM_FORMAT_MOD_LINEAR) {
uint8_t *pix8;
/* first plane: Y (2/3 of the buffer) */
for (y = 0; y < my_buf->height * 2/3; y++) {
pix8 = my_buf->mmap + y * my_buf->stride;
for (x = 0; x < my_buf->width; x++)
*pix8++ = x % 0xff;
}
/* second plane (CbCr) is half the size of Y
plane (last 1/3 of the buffer) */
for (y = my_buf->height * 2/3; y < my_buf->height; y++) {
pix8 = my_buf->mmap + y * my_buf->stride;
for (x = 0; x < my_buf->width; x+=2) {
*pix8++ = x % 256;
*pix8++ = y % 256;
}
}
}
}
else {
for (y = 0; y < my_buf->height; y++) {
@ -481,7 +501,7 @@ create_dmabuf_buffer(struct display *display, struct buffer *buffer,
/* adjust height for allocation of NV12 Y and UV planes */
buffer->height = height * 3 / 2;
buffer->bpp = 8;
modifier = DRM_FORMAT_MOD_SAMSUNG_64_32_TILE;
modifier = display->nv12_modifier;
break;
default:
buffer->height = height;
@ -498,7 +518,7 @@ create_dmabuf_buffer(struct display *display, struct buffer *buffer,
fprintf(stderr, "map_bo failed\n");
goto error2;
}
fill_content(buffer);
fill_content(buffer, modifier);
drm_dev->unmap_bo(buffer);
if (drm_dev->export_bo_to_prime(buffer) != 0) {
@ -746,10 +766,13 @@ dmabuf_modifiers(void *data, struct zwp_linux_dmabuf_v1 *zwp_linux_dmabuf,
d->xrgb8888_format_found = 1;
break;
case DRM_FORMAT_NV12:
d->nv12_format_found = 1;
if (modifier == DRM_FORMAT_MOD_SAMSUNG_64_32_TILE)
d->nv12_modifier_found = 1;
break;
switch (modifier) {
case DRM_FORMAT_MOD_SAMSUNG_64_32_TILE:
case DRM_FORMAT_MOD_LINEAR:
d->nv12_format_found = 1;
d->nv12_modifier = modifier;
break;
}
default:
break;
}
@ -857,12 +880,10 @@ create_display(int opts, int format)
wl_display_roundtrip(display->display);
if ((format == DRM_FORMAT_XRGB8888 && !display->xrgb8888_format_found) ||
(format == DRM_FORMAT_NV12 && (!display->nv12_format_found ||
!display->nv12_modifier_found))) {
(format == DRM_FORMAT_NV12 && !display->nv12_format_found)) {
fprintf(stderr, "requested format is not available\n");
return NULL;
}
return display;
}
@ -902,7 +923,7 @@ print_usage_and_exit(void)
"\t'--y-inverted=<>'\n\t\t0 to not pass Y_INVERTED flag,"
"\n\t\t1 to pass Y_INVERTED flag\n"
"\t'--import-format=<>'\n\t\tXRGB to import dmabuf as XRGB8888,"
"\n\t\tNV12 to import as multi plane NV12 with tiling modifier\n");
"\n\t\tNV12 to import as multi plane NV12\n");
exit(0);
}