mirror of
https://github.com/kovidgoyal/kitty
synced 2026-07-07 09:38:16 +02:00
8dea5b3e3e
Split up the Cell structure into a CPUCell and a GPUCell. Only the GPUCell part needs to be sent to the GPU. Should make kitty use even less system resources and make a performance difference on systems where the GPU bandwidth is constrained. Also allows adding more CPU only data in the future without affecting GPU bandwidth. For example, hyperlinks or more combining characters.
45 lines
2.0 KiB
C
45 lines
2.0 KiB
C
/*
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* Copyright (C) 2017 Kovid Goyal <kovid at kovidgoyal.net>
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*
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* Distributed under terms of the GPL3 license.
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*/
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#pragma once
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#include "lineops.h"
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#include "state.h"
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wpedantic"
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#include <hb.h>
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#pragma GCC diagnostic pop
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// API that font backends need to implement
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typedef uint16_t glyph_index;
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unsigned int glyph_id_for_codepoint(PyObject *, char_type);
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bool is_glyph_empty(PyObject *, glyph_index);
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hb_font_t* harfbuzz_font_for_face(PyObject*);
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bool set_size_for_face(PyObject*, unsigned int, bool, FONTS_DATA_HANDLE);
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void cell_metrics(PyObject*, unsigned int*, unsigned int*, unsigned int*, unsigned int*, unsigned int*);
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bool render_glyphs_in_cells(PyObject *f, bool bold, bool italic, hb_glyph_info_t *info, hb_glyph_position_t *positions, unsigned int num_glyphs, pixel *canvas, unsigned int cell_width, unsigned int cell_height, unsigned int num_cells, unsigned int baseline, bool *was_colored, FONTS_DATA_HANDLE);
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PyObject* create_fallback_face(PyObject *base_face, CPUCell* cell, bool bold, bool italic, bool emoji_presentation, FONTS_DATA_HANDLE fg);
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PyObject* specialize_font_descriptor(PyObject *base_descriptor, FONTS_DATA_HANDLE);
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PyObject* face_from_path(const char *path, int index, FONTS_DATA_HANDLE);
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PyObject* face_from_descriptor(PyObject*, FONTS_DATA_HANDLE);
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void sprite_tracker_current_layout(FONTS_DATA_HANDLE data, unsigned int *x, unsigned int *y, unsigned int *z);
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void render_alpha_mask(uint8_t *alpha_mask, pixel* dest, Region *src_rect, Region *dest_rect, size_t src_stride, size_t dest_stride);
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void render_line(FONTS_DATA_HANDLE, Line *line);
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void sprite_tracker_set_limits(size_t max_texture_size, size_t max_array_len);
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typedef void (*free_extra_data_func)(void*);
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static inline void
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right_shift_canvas(pixel *canvas, size_t width, size_t height, size_t amt) {
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pixel *src;
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size_t r;
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for (r = 0, src = canvas; r < height; r++, src += width) {
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memmove(src + amt, src, sizeof(pixel) * (width - amt));
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memset(src, 0, sizeof(pixel) * amt);
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}
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}
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