mirror of
https://github.com/CTCaer/hekate
synced 2024-07-05 16:03:29 +00:00
185526d134
BDK will allow developers to use the full collection of drivers, with limited editing, if any, for making payloads for Nintendo Switch. Using a single source for everything will also help decoupling Switch specific code and easily port it to other Tegra X1/X1+ platforms. And maybe even to lower targets. Everything is now centrilized into bdk folder. Every module or project can utilize it by simply including it. This is just the start and it will continue to improve.
120 lines
3.1 KiB
C
120 lines
3.1 KiB
C
/**
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* @file lv_vdb.h
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*
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*/
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#ifndef LV_VDB_H
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#define LV_VDB_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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#ifdef LV_CONF_INCLUDE_SIMPLE
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#include "lv_conf.h"
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#else
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#include "../../lv_conf.h"
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#endif
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#if LV_VDB_SIZE != 0
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#include "../lv_misc/lv_color.h"
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#include "../lv_misc/lv_area.h"
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/*********************
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* DEFINES
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*********************/
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/*Can be used in `lv_conf.h` the set an invalid address for the VDB. It should be replaced later by a valid address using `lv_vdb_set_adr()`*/
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#define LV_VDB_ADR_INV 8 /*8 is still too small to be valid but it's aligned on 64 bit machines as well*/
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#ifndef LV_VDB_PX_BPP
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#define LV_VDB_PX_BPP LV_COLOR_SIZE /* Default is LV_COLOR_SIZE */
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#endif
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#if LV_VDB_TRUE_DOUBLE_BUFFERED && (LV_VDB_SIZE != LV_HOR_RES * LV_VER_RES || LV_VDB_DOUBLE == 0)
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#error "With LV_VDB_TRUE_DOUBLE_BUFFERED: (LV_VDB_SIZE = LV_HOR_RES * LV_VER_RES and LV_VDB_DOUBLE = 1 is required"
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#endif
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/* The size of VDB in bytes.
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* (LV_VDB_SIZE * LV_VDB_PX_BPP) >> 3): just divide by 8 to convert bits to bytes
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* (((LV_VDB_SIZE * LV_VDB_PX_BPP) & 0x7) ? 1 : 0): add an extra byte to round up.
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* E.g. if LV_VDB_SIZE = 10 and LV_VDB_PX_BPP = 1 -> 10 bits -> 2 bytes*/
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#define LV_VDB_SIZE_IN_BYTES ((LV_VDB_SIZE * LV_VDB_PX_BPP) >> 3) + (((LV_VDB_SIZE * LV_VDB_PX_BPP) & 0x7) ? 1 : 0)
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/**********************
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* TYPEDEFS
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**********************/
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typedef struct
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{
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lv_area_t area;
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lv_color_t *buf;
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} lv_vdb_t;
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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/**
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* Get the 'vdb' variable or allocate one in LV_VDB_DOUBLE mode
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* @return pointer to a 'vdb' variable
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*/
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lv_vdb_t * lv_vdb_get(void);
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/**
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* Flush the content of the vdb
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*/
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void lv_vdb_flush(void);
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/**
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* Set the address of VDB buffer(s) manually. To use this set `LV_VDB_ADR` (and `LV_VDB2_ADR`) to `LV_VDB_ADR_INV` in `lv_conf.h`.
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* It should be called before `lv_init()`. The size of the buffer should be: `LV_VDB_SIZE_IN_BYTES`
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* @param buf1 address of the VDB.
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* @param buf2 address of the second buffer. `NULL` if `LV_VDB_DOUBLE 0`
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*/
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void lv_vdb_set_adr(void * buf1, void * buf2);
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/**
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* Call in the display driver's 'disp_flush' function when the flushing is finished
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*/
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void lv_flush_ready(void);
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/**
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* Get currently active VDB, where the drawing happens. Used with `LV_VDB_DOUBLE 1`
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* @return pointer to the active VDB. If `LV_VDB_DOUBLE 0` give the single VDB
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*/
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lv_vdb_t * lv_vdb_get_active(void);
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/**
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* Get currently inactive VDB, which is being displayed or being flushed. Used with `LV_VDB_DOUBLE 1`
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* @return pointer to the inactive VDB. If `LV_VDB_DOUBLE 0` give the single VDB
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*/
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lv_vdb_t * lv_vdb_get_inactive(void);
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/**
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* Whether the flushing is in progress or not
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* @return true: flushing is in progress; false: flushing ready
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*/
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bool lv_vdb_is_flushing(void);
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/**********************
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* MACROS
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**********************/
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#else /*LV_VDB_SIZE != 0*/
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/*Just for compatibility*/
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void lv_flush_ready(void);
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#endif
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /*LV_VDB_H*/
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