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/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef _LIBADFHWC_ADFHWC_H_
#define _LIBADFHWC_ADFHWC_H_
#include <stdbool.h>
#include <stdint.h>
#include <sys/cdefs.h>
#include <video/adf.h>
#include <hardware/hwcomposer.h>
struct adf_hwc_helper;
struct adf_hwc_event_callbacks {
/**
* Called on vsync (required)
*/
void (*vsync)(void *data, int disp, uint64_t timestamp);
/**
* Called on hotplug (required)
*/
void (*hotplug)(void *data, int disp, bool connected);
/**
* Called on hardware-custom ADF events (optional)
*/
void (*custom_event)(void *data, int disp, struct adf_event *event);
};
/**
* Converts HAL pixel formats to equivalent ADF/DRM format FourCCs.
*/
static inline uint32_t adf_fourcc_for_hal_pixel_format(int format)
{
switch (format) {
case HAL_PIXEL_FORMAT_RGBA_8888:
return DRM_FORMAT_RGBA8888;
case HAL_PIXEL_FORMAT_RGBX_8888:
return DRM_FORMAT_RGBX8888;
case HAL_PIXEL_FORMAT_RGB_888:
return DRM_FORMAT_RGB888;
case HAL_PIXEL_FORMAT_RGB_565:
return DRM_FORMAT_RGB565;
case HAL_PIXEL_FORMAT_BGRA_8888:
return DRM_FORMAT_BGRA8888;
case HAL_PIXEL_FORMAT_YV12:
return DRM_FORMAT_YVU420;
case HAL_PIXEL_FORMAT_YCbCr_422_SP:
return DRM_FORMAT_NV16;
case HAL_PIXEL_FORMAT_YCrCb_420_SP:
return DRM_FORMAT_NV21;
case HAL_PIXEL_FORMAT_YCbCr_422_I:
return DRM_FORMAT_YUYV;
default:
return 0;
}
}
/**
* Converts HAL display types to equivalent ADF interface flags.
*/
static inline uint32_t adf_hwc_interface_flag_for_disp(int disp)
{
switch (disp) {
case HWC_DISPLAY_PRIMARY:
return ADF_INTF_FLAG_PRIMARY;
case HWC_DISPLAY_EXTERNAL:
return ADF_INTF_FLAG_EXTERNAL;
default:
return 0;
}
}
__BEGIN_DECLS
/**
* Create a HWC helper for the specified ADF interfaces.
*
* intf_fds must be indexed by HWC display type: e.g.,
* intf_fds[HWC_DISPLAY_PRIMARY] is the fd for the primary display
* interface. n_intfs must be >= 1.
*
* The caller retains ownership of the fds in intf_fds and must close()
* them when they are no longer needed.
*
* On error, returns -errno.
*/
int adf_hwc_open(int *intf_fds, size_t n_intfs,
const struct adf_hwc_event_callbacks *event_cb, void *event_cb_data,
struct adf_hwc_helper **dev);
/**
* Destroys a HWC helper.
*/
void adf_hwc_close(struct adf_hwc_helper *dev);
/**
* Generic implementations of common HWC ops.
*
* The HWC should not point its ops directly at these helpers. Instead, the HWC
* should provide stub ops which call these helpers after converting the
* hwc_composer_device_1* to a struct adf_hwc_helper*.
*/
int adf_eventControl(struct adf_hwc_helper *dev, int disp, int event,
int enabled);
int adf_blank(struct adf_hwc_helper *dev, int disp, int blank);
int adf_query_display_types_supported(struct adf_hwc_helper *dev, int *value);
int adf_getDisplayConfigs(struct adf_hwc_helper *dev, int disp,
uint32_t *configs, size_t *numConfigs);
int adf_getDisplayAttributes(struct adf_hwc_helper *dev, int disp,
uint32_t config, const uint32_t *attributes, int32_t *values);
__END_DECLS
#endif /* _LIBADFHWC_ADFHWC_H_ */
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