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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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47
src/backends/native/meta-renderer-native.c
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@ -1283,24 +1283,49 @@ 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,
gbm_bo_get_width (next_bo),
gbm_bo_get_height (next_bo),
gbm_bo_get_format (next_bo),
handles,
strides,
offsets,
&next_fb_id,
0))
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),
handles,
strides,
offsets,
&next_fb_id,
0))
{
if (drmModeAddFB (kms_fd,
gbm_bo_get_width (next_bo),