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Freetype, why are you so slow?

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This commit is contained in:
Kevin Lange 2012-01-23 00:13:50 -06:00
parent 2174cfb59e
commit 7e716019ec
1 changed files with 92 additions and 4 deletions
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96
userspace/terminal.c
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@ -1,5 +1,5 @@
/*
* Julia Fractal Generator
* Terminal Emulator
*/
#include <stdio.h>
@ -9,6 +9,10 @@
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <ft2build.h>
#include FT_FREETYPE_H
#define FONT_SIZE 12
/* Binary Literals */
#define b(x) ((uint8_t)b_(0 ## x ## uL))
@ -2443,6 +2447,23 @@ uint8_t number_font[][12] = {
},
};
FT_Library library;
FT_Face face;
FT_GlyphSlot slot;
FT_UInt glyph_index;
void drawChar(FT_Bitmap * bitmap, int x, int y, uint32_t fg, uint32_t bg) {
int i, j, p, q;
int x_max = x + bitmap->width;
int y_max = y + bitmap->rows;
for (j = y, q = 0; j < y_max; j++, q++) {
for ( i = x, p = 0; i < x_max; i++, p++) {
//GFX(i,j) = alpha_blend(GFX(i,j),rgb(0xff,0xff,0xff),rgb(bitmap->buffer[q * bitmap->width + p],0,0));
GFX(i,j) = alpha_blend(bg, fg, rgb(bitmap->buffer[q * bitmap->width + p],0,0));
}
}
}
void
term_write_char(
uint8_t val,
@ -2451,9 +2472,36 @@ term_write_char(
uint32_t fg,
uint32_t bg
) {
if (val > 131) {
val = ' ';
if (val < 32 || val > 126) {
return;
}
#if 1
for (uint8_t i = 0; i < 12; ++i) {
term_set_point(x+0,y+i,bg);
term_set_point(x+1,y+i,bg);
term_set_point(x+2,y+i,bg);
term_set_point(x+3,y+i,bg);
term_set_point(x+4,y+i,bg);
term_set_point(x+5,y+i,bg);
term_set_point(x+6,y+i,bg);
term_set_point(x+7,y+i,bg);
}
int pen_x = x;
int pen_y = y + 10;
int error;
glyph_index = FT_Get_Char_Index(face, val);
error = FT_Load_Glyph(face, glyph_index, FT_LOAD_DEFAULT | FT_LOAD_FORCE_AUTOHINT );
if (error) return;
error = FT_Render_Glyph(face->glyph, FT_RENDER_MODE_NORMAL);
if (error) return;
slot = face->glyph;
drawChar(&slot->bitmap, pen_x + slot->bitmap_left, pen_y - slot->bitmap_top, fg, bg);
#else
uint8_t * c = number_font[val];
for (uint8_t i = 0; i < 12; ++i) {
if (c[i] & 0x80) { term_set_point(x,y+i,fg); } else { term_set_point_bg(x,y+i,bg); }
@ -2465,6 +2513,7 @@ term_write_char(
if (c[i] & 0x02) { term_set_point(x+6,y+i,fg); } else { term_set_point_bg(x+6,y+i,bg); }
if (c[i] & 0x01) { term_set_point(x+7,y+i,fg); } else { term_set_point_bg(x+7,y+i,bg); }
}
#endif
}
static void cell_set(uint16_t x, uint16_t y, uint8_t c, uint8_t fg, uint8_t bg, uint8_t flags) {
@ -2611,10 +2660,31 @@ void term_term_clear() {
csr_x = 0;
csr_y = 0;
memset((void *)term_buffer, 0x00, term_width * term_height * sizeof(uint8_t) * 4);
memset((void *)gfx_mem, 0x00, graphics_depth * graphics_width * graphics_height);
term_redraw_all();
}
void cat(char * file) {
FILE * f = fopen(file, "rb");
if (!f) {
ansi_print("Failed to open file, so skipping that part.\n");
return;
}
size_t len = 0;
fseek(f, 0, SEEK_END);
len = ftell(f);
fseek(f, 0, SEEK_SET);
char * buffer = (char *)malloc(sizeof(char) * len);
fread(buffer, 1, len, f);
fclose(f);
for (size_t i = 0; i < len; ++i) {
ansi_put(buffer[i]);
}
free(buffer);
}
int main(int argc, char ** argv) {
graphics_width = syscall_getgraphicswidth();
@ -2641,7 +2711,25 @@ int main(int argc, char ** argv) {
}
}
int error;
error = FT_Init_FreeType(&library);
if (error) return 1;
error = FT_New_Face(library, "/font.ttf", 0, &face);
if (error) return 2;
error = FT_Set_Pixel_Sizes(face, 0, FONT_SIZE);
if (error) return 3;
ansi_print("Hello World!\nThis is a test.\n\033[1;32mHello and thank you\n\033[0mDone.\n");
cat("/etc/.vim");
fgetc(stdin);
ansi_print("\033[H\033[2J");
cat("/etc/color-test");
fgetc(stdin);
return 0;
}