Re: [PATCH hwc v2 05/18] drm_hwcomposer: Enable resource manager support

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On Wed, Apr 11, 2018 at 04:22:16PM +0100, Alexandru Gheorghe wrote:
> Use the newly added ResourceManager for creating and detecting all the
> drm devices instead of assuming that there is only one device.
> 
> Signed-off-by: Alexandru Gheorghe <alexandru-cosmin.gheorghe@xxxxxxx>
> ---

<snip />

> index 4cca48c..4cdcd87 100644
> --- a/drmresources.h
> +++ b/drmresources.h
> @@ -17,22 +17,26 @@
>  #ifndef ANDROID_DRM_H_
>  #define ANDROID_DRM_H_
>  
> +#include <stdint.h>
>  #include "drmconnector.h"
>  #include "drmcrtc.h"
>  #include "drmencoder.h"
>  #include "drmeventlistener.h"
>  #include "drmplane.h"
> -
> -#include <stdint.h>
> +#include "platform.h"
> +#include "resourcemanager.h"
>  
>  namespace android {
>  
> +class ResourceManager;
> +
>  class DrmResources {

One more thing I've been thinking about. Let's rename this to DrmDevice now that
we can have more than one. It's immediately obvious what a collection of
DrmDevices is, it's less obvious if they're DrmResources. I think
ResourceManager is Ok to keep, but if you think there's a better name I'm open
to that.

Sean

>   public:
>    DrmResources();
>    ~DrmResources();
>  
> -  int Init();
> +  int Init(ResourceManager *resource_manager, char *path,
> +           int start_display_index);
>  
>    int fd() const {
>      return fd_.get();
> @@ -58,6 +62,7 @@ class DrmResources {
>    DrmCrtc *GetCrtcForDisplay(int display) const;
>    DrmPlane *GetPlane(uint32_t id) const;
>    DrmEventListener *event_listener();
> +  ResourceManager *resource_manager();
>  
>    int GetPlaneProperty(const DrmPlane &plane, const char *prop_name,
>                         DrmProperty *property);
> @@ -71,6 +76,7 @@ class DrmResources {
>  
>    int CreatePropertyBlob(void *data, size_t length, uint32_t *blob_id);
>    int DestroyPropertyBlob(uint32_t blob_id);
> +  bool HandlesDisplay(int display) const;
>  
>   private:
>    int TryEncoderForDisplay(int display, DrmEncoder *enc);
> @@ -90,6 +96,8 @@ class DrmResources {
>  
>    std::pair<uint32_t, uint32_t> min_resolution_;
>    std::pair<uint32_t, uint32_t> max_resolution_;
> +  std::map<int, int> displays_;
> +  ResourceManager *resource_manager_;
>  };
>  }
>  
> -- 
> 2.7.4
> 

-- 
Sean Paul, Software Engineer, Google / Chromium OS
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