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renderer/native: Use modifier-aware GBM API

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Newer versions of GBM support buffer modifiers, including multi-plane
buffers. Use this new API to explicitly pull the information from GBM,
and feed it to drmModeAddFB2WithModifiers.

https://bugzilla.gnome.org/show_bug.cgi?id=785779
This commit is contained in:
Daniel Stone 2017-08-03 15:06:08 +01:00 committed by Jonas Ådahl
parent d99cd279d2
commit c0d9b08ef9
2 changed files with 37 additions and 12 deletions
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2
configure.ac
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@ -266,7 +266,7 @@ AC_SUBST(XWAYLAND_PATH)
PKG_CHECK_MODULES(MUTTER, $MUTTER_PC_MODULES)
MUTTER_NATIVE_BACKEND_MODULES="libdrm >= 2.4.83 libsystemd libinput >= 1.4 gudev-1.0 gbm >= 10.3"
MUTTER_NATIVE_BACKEND_MODULES="libdrm >= 2.4.83 libsystemd libinput >= 1.4 gudev-1.0 gbm >= 17.1"
AC_ARG_ENABLE(native-backend,
AS_HELP_STRING([--disable-native-backend], [disable mutter native (KMS) backend]),,

31
src/backends/native/meta-renderer-native.c
View File

@ -1283,16 +1283,41 @@ gbm_get_next_fb_id (MetaGpuKms *gpu_kms,
uint32_t handles[4] = { 0, };
uint32_t strides[4] = { 0, };
uint32_t offsets[4] = { 0, };
uint64_t modifiers[4] = { 0, };
int i;
/* Now we need to set the CRTC to whatever is the front buffer */
next_bo = gbm_surface_lock_front_buffer (gbm_surface);
strides[0] = gbm_bo_get_stride (next_bo);
handles[0] = gbm_bo_get_handle (next_bo).u32;
for (i = 0; i < gbm_bo_get_plane_count (next_bo); i++)
{
strides[i] = gbm_bo_get_stride_for_plane (next_bo, i);
handles[i] = gbm_bo_get_handle_for_plane (next_bo, i).u32;
offsets[i] = gbm_bo_get_offset (next_bo, i);
modifiers[i] = gbm_bo_get_modifier (next_bo);
}
kms_fd = meta_gpu_kms_get_fd (gpu_kms);
if (drmModeAddFB2 (kms_fd,
if (modifiers[0] != DRM_FORMAT_MOD_INVALID)
{
if (drmModeAddFB2WithModifiers (kms_fd,
gbm_bo_get_width (next_bo),
gbm_bo_get_height (next_bo),
gbm_bo_get_format (next_bo),
handles,
strides,
offsets,
modifiers,
&next_fb_id,
DRM_MODE_FB_MODIFIERS))
{
g_warning ("Failed to create new back buffer handle: %m");
gbm_surface_release_buffer (gbm_surface, next_bo);
return FALSE;
}
}
else if (drmModeAddFB2 (kms_fd,
gbm_bo_get_width (next_bo),
gbm_bo_get_height (next_bo),
gbm_bo_get_format (next_bo),