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#ifndef GSR_KMS_SHARED_H
#define GSR_KMS_SHARED_H
#include <stdint.h>
#include <stdbool.h>
#include <drm_mode.h>
#define GSR_KMS_PROTOCOL_VERSION 6
#define GSR_KMS_MAX_ITEMS 8
#define GSR_KMS_MAX_DMA_BUFS 4
typedef struct gsr_kms_response_dma_buf gsr_kms_response_dma_buf;
typedef struct gsr_kms_response_item gsr_kms_response_item;
typedef struct gsr_kms_response gsr_kms_response;
typedef enum {
KMS_REQUEST_TYPE_REPLACE_CONNECTION,
KMS_REQUEST_TYPE_GET_KMS
} gsr_kms_request_type;
typedef enum {
KMS_RESULT_OK,
KMS_RESULT_INVALID_REQUEST,
KMS_RESULT_FAILED_TO_GET_PLANE,
KMS_RESULT_FAILED_TO_GET_PLANES,
KMS_RESULT_FAILED_TO_SEND
} gsr_kms_result;
typedef struct {
uint32_t version; /* GSR_KMS_PROTOCOL_VERSION */
int type; /* gsr_kms_request_type */
int new_connection_fd;
} gsr_kms_request;
struct gsr_kms_response_dma_buf {
int fd;
uint32_t pitch;
uint32_t offset;
};
typedef enum {
KMS_ROT_0,
KMS_ROT_90,
KMS_ROT_180,
KMS_ROT_270
} gsr_kms_rotation;
typedef enum {
KMS_PLANE_TYPE_PRIMARY,
KMS_PLANE_TYPE_CURSOR,
KMS_PLANE_TYPE_OVERLAY
} gsr_kms_plane_type;
struct gsr_kms_response_item {
gsr_kms_response_dma_buf dma_buf[GSR_KMS_MAX_DMA_BUFS];
int num_dma_bufs;
uint32_t width;
uint32_t height;
uint32_t pixel_format;
uint64_t modifier;
uint32_t connector_id; /* 0 if unknown */
gsr_kms_plane_type plane_type;
bool has_hdr_metadata;
gsr_kms_rotation rotation;
/* The region in the framebuffer that is displayed */
int src_x;
int src_y;
int src_w;
int src_h;
/* The region on the monitor (crtc) where the framebuffer region is displayed */
int dst_x;
int dst_y;
int dst_w;
int dst_h;
int zpos;
struct hdr_output_metadata hdr_metadata;
};
struct gsr_kms_response {
uint32_t version; /* GSR_KMS_PROTOCOL_VERSION */
int result; /* gsr_kms_result */
char err_msg[128];
gsr_kms_response_item items[GSR_KMS_MAX_ITEMS];
int num_items;
};
#endif /* #define GSR_KMS_SHARED_H */
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