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Refactor VT parser for more speed

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No longer copy bytes into a separate buffer, instead parse them in place
in the read buffer
This commit is contained in:
Kovid Goyal
2023-11-05 10:24:00 +05:30
parent 23bb2e1b67
commit 6205fb32fd
19 changed files with 1037 additions and 1015 deletions
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14
kitty/screen.h
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@@ -9,7 +9,6 @@
#include "vt-parser.h"
#include "graphics.h"
#include "monotonic.h"
#define MAX_PARAMS 256
typedef enum ScrollTypes { SCROLL_LINE = -999999, SCROLL_PAGE, SCROLL_FULL } ScrollType;
@@ -107,10 +106,9 @@ typedef struct {
ColorProfile *color_profile;
monotonic_t start_visual_bell_at;
uint8_t read_buf[READ_BUF_SZ], *write_buf;
monotonic_t new_input_at;
size_t read_buf_sz, write_buf_sz, write_buf_used;
pthread_mutex_t read_buf_lock, write_buf_lock;
uint8_t *write_buf;
size_t write_buf_sz, write_buf_used;
pthread_mutex_t write_buf_lock;
CursorRenderInfo cursor_render_info;
unsigned int render_unfocused_cursor;
@@ -156,8 +154,6 @@ typedef struct {
} Screen;
void parse_worker(Screen *screen, PyObject *dump_callback, monotonic_t now);
void parse_worker_dump(Screen *screen, PyObject *dump_callback, monotonic_t now);
void screen_align(Screen*);
void screen_restore_cursor(Screen *);
void screen_save_cursor(Screen *);
@@ -223,7 +219,7 @@ void set_color_table_color(Screen *self, unsigned int code, PyObject*);
void process_cwd_notification(Screen *self, unsigned int code, const char*, size_t);
void screen_request_capabilities(Screen *, char, const char *);
void report_device_attributes(Screen *self, unsigned int UNUSED mode, char start_modifier);
void select_graphic_rendition(Screen *self, int *params, unsigned int count, Region*);
void select_graphic_rendition(Screen *self, int *params, unsigned int count, bool is_group, Region *r);
void report_device_status(Screen *self, unsigned int which, bool UNUSED);
void report_mode_status(Screen *self, unsigned int which, bool);
void screen_apply_selection(Screen *self, void *address, size_t size);
@@ -266,7 +262,7 @@ int screen_cursor_at_a_shell_prompt(const Screen *);
bool screen_fake_move_cursor_to_position(Screen *, index_type x, index_type y);
bool screen_send_signal_for_key(Screen *, char key);
bool get_line_edge_colors(Screen *self, color_type *left, color_type *right);
void parse_sgr(Screen *screen, const uint8_t *buf, unsigned int num, int *params, const char *report_name, Region *region);
bool parse_sgr(Screen *screen, const uint8_t *buf, unsigned int num, const char *report_name, bool is_deccara);
#define DECLARE_CH_SCREEN_HANDLER(name) void screen_##name(Screen *screen);
DECLARE_CH_SCREEN_HANDLER(bell)
DECLARE_CH_SCREEN_HANDLER(backspace)