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ecore-drm2: Add API function to set output rotation 

This patch adds a new API function that can be called from
Enlightenment wl_drm module to enable output rotation.

NB: Only works if Atomic support is enabled as it rotates the hardware
plane directly...and we don't support planes without Atomic enabled.

@feature

Signed-off-by: Chris Michael <cp.michael@samsung.com>
This commit is contained in:
Chris Michael 2017-01-18 11:29:14 -05:00
parent ca194584d5
commit c126ce2e70
2 changed files with 65 additions and 0 deletions
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16
src/lib/ecore_drm2/Ecore_Drm2.h
View File

@ -757,6 +757,22 @@ EAPI void ecore_drm2_output_gamma_set(Ecore_Drm2_Output *output, uint16_t size,
*/
EAPI int ecore_drm2_output_supported_rotations_get(Ecore_Drm2_Output *output);
/**
* Set a rotation on a given output
*
* @param output
* @param rotation
*
* @return EINA_TRUE on success, EINA_FALSE otherwise
*
* @note This function will only work if Atomic support
* is enabled as it requires hardware plane support.
*
* @ingroup Ecore_Drm2_Output_Group
* @since 1.19
*/
EAPI Eina_Bool ecore_drm2_output_rotation_set(Ecore_Drm2_Output *output, int rotation);
/**
* @defgroup Ecore_Drm2_Fb_Group Drm framebuffer functions
*

49
src/lib/ecore_drm2/ecore_drm2_outputs.c
View File

@ -1529,3 +1529,52 @@ ecore_drm2_output_supported_rotations_get(Ecore_Drm2_Output *output)
return ret;
}
EAPI Eina_Bool
ecore_drm2_output_rotation_set(Ecore_Drm2_Output *output, int rotation)
{
Eina_Bool ret = EINA_FALSE;
EINA_SAFETY_ON_NULL_RETURN_VAL(output, EINA_FALSE);
#ifdef HAVE_ATOMIC_DRM
if (_ecore_drm2_use_atomic)
{
Ecore_Drm2_Plane_State *pstate;
drmModeAtomicReq *req = NULL;
int res = 0;
uint32_t flags =
DRM_MODE_ATOMIC_NONBLOCK | DRM_MODE_PAGE_FLIP_EVENT |
DRM_MODE_ATOMIC_ALLOW_MODESET;
pstate = output->plane_state;
if ((pstate->supported_rotations & rotation) == 0)
{
WRN("Unsupported rotation");
return EINA_FALSE;
}
req = sym_drmModeAtomicAlloc();
if (!req) return EINA_FALSE;
sym_drmModeAtomicSetCursor(req, 0);
res = sym_drmModeAtomicAddProperty(req, pstate->obj_id,
pstate->rotation.id, rotation);
if (res < 0) goto err;
res = sym_drmModeAtomicCommit(output->fd, req, flags, output->user_data);
if (res < 0) goto err;
else
{
ret = EINA_TRUE;
pstate->rotation.value = rotation;
}
err:
sym_drmModeAtomicFree(req);
}
#endif
return ret;
}