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mesa: querying dma_buf modifiers for specific formats

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mesa wl_drm protocol is the backend for wayland server side which requires
the dmabuf modifiers for some DRM formats on specific devices like RPI.
Currently there is no support of giving any dmabuf modifiers on wl_drm protocol.
This dma_buf modifiers allows EGL implementations to add extra attributes
to drm_fourcc format.

Upstream-Status: Pending

Signed-off-by: Balaji Velmurugan <balaji.velmurugan@ltts.com>
This commit is contained in:
rkhan467 2020-01-14 17:55:06 +05:30 committed by Andrei Gherzan
parent c5bc556873
commit 84cb8538cd
2 changed files with 49 additions and 0 deletions
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45
recipes-graphics/mesa/files/0001-dri2-query-dma-buf-modifiers.patch Normal file
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@ -0,0 +1,45 @@
mesa: querying dma_buf_modifiers for specific formats
mesa wl_drm protocol is the backend for wayland server side which requires
the dmabuf modifiers for some DRM formats on specific devices like RPI.
Currently there is no support of giving any dmabuf modifiers on wl_drm protocol.
This dma_buf modifiers allows EGL implementations to add extra attributes
to drm_fourcc format.
Upstream-Status: Pending
Signed-off-by: Balaji Velmurugan <balaji.velmurugan@ltts.com>
diff --git a/src/gallium/state_trackers/dri/dri2.c b/src/gallium/state_trackers/dri/dri2.c
index 6ce6f19..2f9d47d 100644
--- a/src/gallium/state_trackers/dri/dri2.c
+++ b/src/gallium/state_trackers/dri/dri2.c
@@ -1368,14 +1368,28 @@ dri2_from_planar(__DRIimage *image, int plane, void *loaderPrivate)
return img;
}
+static boolean
+dri2_query_dma_buf_modifiers(__DRIscreen *_screen, int fourcc, int max,
+ uint64_t *modifiers, unsigned int *external_only,
+ int *count);
static __DRIimage *
dri2_from_fds(__DRIscreen *screen, int width, int height, int fourcc,
int *fds, int num_fds, int *strides, int *offsets,
void *loaderPrivate)
{
+ uint64_t modifier= DRM_FORMAT_MOD_INVALID;
+ unsigned int external_only= 0;
+ int count= 0;
+ boolean result;
+ result= dri2_query_dma_buf_modifiers( screen, fourcc, 1, &modifier, &external_only, &count);
+ return dri2_create_image_from_fd(screen, width, height, fourcc,
+ modifier, fds, num_fds,
+ strides, offsets, NULL, loaderPrivate);
+ #if 0
return dri2_create_image_from_fd(screen, width, height, fourcc,
DRM_FORMAT_MOD_INVALID, fds, num_fds,
strides, offsets, NULL, loaderPrivate);
+ #endif
}
static boolean

4
recipes-graphics/mesa/mesa_%.bbappend
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@ -1,6 +1,10 @@
FILESEXTRAPATHS_prepend := "${THISDIR}/files:"
# DRI3 note:
# With oe-core commit 8509e2e1a87578882b71948ccef3b50ccf1228b3 dri3 is set
# as default. To state out clearly that Raspi needs dri3 and to avoid surprises
# in case oe-core changes this default, we set dri3 explicitly.
SRC_URI_append_rpi = " file://0001-dri2-query-dma-buf-modifiers.patch "
PACKAGECONFIG_append_rpi = " gallium vc4 v3d kmsro ${@bb.utils.contains('DISTRO_FEATURES', 'x11 opengl', 'x11 dri3', '', d)}"
DRIDRIVERS_class-target_rpi = ""