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| author | Tomasz Figa <tfiga@google.com> | 2015-09-08 15:19:37 +0900 |
|---|---|---|
| committer | Owen Lin <owenlin@google.com> | 2015-09-22 14:56:23 +0800 |
| commit | a43d9523c050b3ddb40190bb8de7920b7521b6ca (patch) | |
| tree | dfc0200497fcf34521ad6c8a6ac056fea53fcb7f | |
| parent | 7a7fbe88978c992cc601604c54dc5a5596a03033 (diff) | |
| download | drm_gralloc-a43d9523c050b3ddb40190bb8de7920b7521b6ca.tar.gz | |
drm_gralloc: Implement lock_ycbcr method
It is needed for flexible YUV formats. Currently only flexible YUV420 is
supported and always maps to NV12 format.
Change-Id: I4b2f2d1cdd3f2495b63d84438130dc7ab99fbf8c
| -rw-r--r-- | gralloc.cpp | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/gralloc.cpp b/gralloc.cpp index 521d6cb..8162e91 100644 --- a/gralloc.cpp +++ b/gralloc.cpp @@ -110,6 +110,46 @@ static int drm_mod_lock(const gralloc_module_t *mod, buffer_handle_t handle, return gralloc_drm_bo_lock(bo, usage, x, y, w, h, ptr); } +static int drm_mod_lock_ycbcr(const gralloc_module_t *mod, buffer_handle_t bhandle, + int usage, int x, int y, int w, int h, struct android_ycbcr *ycbcr) +{ + struct gralloc_drm_handle_t *handle; + struct gralloc_drm_bo_t *bo; + void *ptr; + int err; + + bo = gralloc_drm_bo_from_handle(bhandle); + if (!bo) + return -EINVAL; + handle = bo->handle; + + switch(handle->format) { + case HAL_PIXEL_FORMAT_YCbCr_420_888: + break; + default: + return -EINVAL; + } + + err = gralloc_drm_bo_lock(bo, usage, x, y, w, h, &ptr); + if (err) + return err; + + switch(handle->format) { + case HAL_PIXEL_FORMAT_YCbCr_420_888: + ycbcr->y = ptr; + ycbcr->cb = (uint8_t *)ptr + handle->stride * handle->height; + ycbcr->cr = (uint8_t *)ycbcr->cb + 1; + ycbcr->ystride = handle->stride; + ycbcr->cstride = handle->stride; + ycbcr->chroma_step = 2; + break; + default: + break; + } + + return 0; +} + static int drm_mod_unlock(const gralloc_module_t *mod, buffer_handle_t handle) { struct drm_module_t *dmod = (struct drm_module_t *) mod; @@ -231,7 +271,8 @@ struct drm_module_t HAL_MODULE_INFO_SYM = { .unregisterBuffer = drm_mod_unregister_buffer, .lock = drm_mod_lock, .unlock = drm_mod_unlock, - .perform = drm_mod_perform + .perform = drm_mod_perform, + .lock_ycbcr = drm_mod_lock_ycbcr, }, .mutex = PTHREAD_MUTEX_INITIALIZER, |