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Switch to using an index for sprite tracking

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Frees up two bytes in GPUCell. Doesn't require a minimum texture row
size. Makes a bunch of code faster. Index uses 31 bits which gives us
2,147,483,647 aka ~ 2 billion sprites.
This commit is contained in:
Kovid Goyal
2024-12-11 08:36:03 +05:30
parent 203a5f4e00
commit 0fb49f4139
12 changed files with 97 additions and 71 deletions
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4
kitty/data-types.h
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@@ -73,7 +73,7 @@ typedef uint16_t combining_type;
typedef uint16_t glyph_index;
typedef uint32_t pixel;
typedef unsigned int index_type;
typedef uint16_t sprite_index;
typedef uint32_t sprite_index;
typedef enum CursorShapes { NO_CURSOR_SHAPE, CURSOR_BLOCK, CURSOR_BEAM, CURSOR_UNDERLINE, CURSOR_HOLLOW, NUM_OF_CURSOR_SHAPES } CursorShape;
typedef enum { DISABLE_LIGATURES_NEVER, DISABLE_LIGATURES_CURSOR, DISABLE_LIGATURES_ALWAYS } DisableLigature;
@@ -276,7 +276,7 @@ typedef struct FontCellMetrics {
#define FONTS_DATA_HEAD SPRITE_MAP_HANDLE sprite_map; double logical_dpi_x, logical_dpi_y, font_sz_in_pts; FontCellMetrics fcm;
typedef struct {FONTS_DATA_HEAD} *FONTS_DATA_HANDLE;
#define clear_sprite_position(cell) (cell).sprite_x = 0; (cell).sprite_y = 0; (cell).sprite_z = 0;
#define clear_sprite_position(cell) (cell).sprite_idx = 0;
#define ensure_space_for(base, array, type, num, capacity, initial_cap, zero_mem) \
if ((base)->capacity < num) { \