Mercurial > public > algo-animator

annotate main.c @ 18:6a5c5b137348

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
implement method to run the algo function given the selected algo
author Dennis C. M. <dennis@denniscm.com>
date Sun, 25 Jun 2023 19:23:49 +0100
parents fba66d02f1cf
children a027304ec75d
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
8
f7af7255705e text flickering fixed
Dennis C. M. <dennis@denniscm.com>
parents: 7
diff changeset
1 #include <stdio.h>
9
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
2 #include <stdlib.h>
7
f159eec07daf refactor
Dennis C. M. <dennis@denniscm.com>
parents: 6
diff changeset
3 #include <GL/glut.h>
9
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
4 #include <math.h>
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
5 #include <time.h>
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
6 #include <stdbool.h>
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
7 #include <ft2build.h>
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
8 #include FT_FREETYPE_H
0
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
9
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
10
6
40a8bdbe2005 Refactor to array of structures
Dennis C. M. <dennis@denniscm.com>
parents: 5
diff changeset
11 #define WINDOW_HEIGHT 1080
40a8bdbe2005 Refactor to array of structures
Dennis C. M. <dennis@denniscm.com>
parents: 5
diff changeset
12 #define WINDOW_WIDTH 1920
16
2ded5f1f544a refactor variable name
Dennis C. M. <dennis@denniscm.com>
parents: 15
diff changeset
13 #define VPADDING 150
7
f159eec07daf refactor
Dennis C. M. <dennis@denniscm.com>
parents: 6
diff changeset
14 #define RECT_WIDTH 5
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
15 #define SPACE 1
7
f159eec07daf refactor
Dennis C. M. <dennis@denniscm.com>
parents: 6
diff changeset
16
f159eec07daf refactor
Dennis C. M. <dennis@denniscm.com>
parents: 6
diff changeset
17
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
18 /* Global variables */
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
19
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
20 FT_Library ft_library;
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
21 FT_Face ft_face;
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
22
18
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
23 struct Algo {
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
24 char name[50];
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
25 void (*function)();
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
26 };
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
27
18
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
28 struct Algo algos[1];
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
29
9
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
30 int selected_algo = 0;
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
31 int speed = 5;
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
32 int refresh_counter = 0;
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
33 int iter_counter = 0;
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
34 int arr_size;
9
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
35
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
36 float* arr;
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
37
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
38 bool run;
0
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
39
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
40
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
41 /* Algorithms */
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
42
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
43 // Bubble sort
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
44 struct BubbleSortInfo {
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
45 int step;
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
46 int i;
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
47 };
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
48
14
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
49 struct BubbleSortInfo bs = {1, 0};
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
50
9
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
51 void bubble_sort() {
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
52 if (bs.i < arr_size - bs.step - 1) {
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
53 float current = arr[bs.i];
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
54 float next = arr[bs.i + 1];
9
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
55
11
aaecc9b7ca9c testing glutTimerFunc
Dennis C. M. <dennis@denniscm.com>
parents: 10
diff changeset
56 if (current > next) {
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
57 arr[bs.i + 1] = current;
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
58 arr[bs.i] = next;
11
aaecc9b7ca9c testing glutTimerFunc
Dennis C. M. <dennis@denniscm.com>
parents: 10
diff changeset
59 }
9
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
60
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
61 bs.i++;
11
aaecc9b7ca9c testing glutTimerFunc
Dennis C. M. <dennis@denniscm.com>
parents: 10
diff changeset
62 } else {
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
63 bs.step++;
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
64 bs.i = 0;
9
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
65 }
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
66 }
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
67
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
68
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
69 /* Helper functions */
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
70
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
71 void create_array() {
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
72 arr_size = WINDOW_WIDTH / (RECT_WIDTH + SPACE);
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
73 arr = (float*)malloc(arr_size * sizeof(float));
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
74
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
75 float rect_increase = (WINDOW_HEIGHT - VPADDING * 2) / (float)(arr_size - 1);
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
76
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
77 for (int i = 1; i <= arr_size; i++) {
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
78 arr[i - 1] = i * rect_increase;
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
79 }
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
80 }
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
81
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
82
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
83 void randomize_array() {
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
84 srand(time(NULL));
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
85
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
86 // Fisher-Yates shuffle
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
87 for (int i = arr_size - 1; i > 0; i--) {
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
88 int j = rand() % (i + 1);
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
89
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
90 // Swap
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
91 float temp = arr[i];
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
92 arr[i] = arr[j];
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
93 arr[j] = temp;
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
94 }
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
95 }
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
96
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
97
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
98 bool array_sorted() {
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
99 for (int i = 0; i < arr_size - 1; i++) {
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
100 if (arr[i] > arr[i + 1]) {
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
101 return false;
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
102 }
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
103 }
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
104
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
105 return true;
9
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
106 }
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
107
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
108
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
109 void algo_selector(int direction) {
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
110 int selection = selected_algo + direction;
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
111 int lower = 0;
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
112 int upper = (sizeof(algos) / sizeof(algos[0])) - 1;
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
113
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
114 if (selection >= lower && selection <= upper) {
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
115 selected_algo = selection;
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
116 }
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
117 }
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
118
2
ea3c427d922d draw a weird filled rectangle
Dennis C. M. <dennis@denniscm.com>
parents: 0
diff changeset
119
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
120 /* Render functions */
8
f7af7255705e text flickering fixed
Dennis C. M. <dennis@denniscm.com>
parents: 7
diff changeset
121
15
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
122 void render_text(int x, int y, char* text) {
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
123 for (const char *c = text; *c; c++) {
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
124
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
125 // Get glyph index from character code
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
126 FT_UInt glyph_index = FT_Get_Char_Index(ft_face, *c);
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
127
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
128 if (glyph_index == 0) {
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
129 fprintf(stderr, "Given character code has no glyph image in the face\n");
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
130 exit(1);
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
131 }
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
132
15
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
133 // Load glyph image
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
134 if (FT_Load_Glyph(ft_face, glyph_index, FT_LOAD_DEFAULT)) {
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
135 fprintf(stderr, "Failed to load glyph.\n");
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
136 exit(1);
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
137 }
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
138
15
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
139 // Render glyph
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
140 if (FT_Render_Glyph(ft_face->glyph, FT_RENDER_MODE_NORMAL)) {
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
141 fprintf(stderr, "Failed to render glyph.\n");
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
142 exit(1);
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
143 }
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
144
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
145 FT_GlyphSlot slot = ft_face->glyph;
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
146 FT_Bitmap* glyph_bitmap = &slot->bitmap;
14
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
147
15
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
148 // Flip the bitmap vertically
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
149 unsigned char* flipped_bitmap = (unsigned char*)malloc(glyph_bitmap->width * glyph_bitmap->rows);
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
150
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
151 for (int row = 0; row < glyph_bitmap->rows; row++) {
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
152 unsigned char* src_row = glyph_bitmap->buffer + (row * glyph_bitmap->width);
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
153 unsigned char* dest_row = flipped_bitmap + ((glyph_bitmap->rows - row - 1) * glyph_bitmap->width);
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
154 memcpy(dest_row, src_row, glyph_bitmap->width);
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
155 }
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
156
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
157 glyph_bitmap->buffer = flipped_bitmap;
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
158
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
159 // Calculate the adjusted y position based on the glyph's bearing
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
160 int adjusted_y = y + (slot->bitmap_top - glyph_bitmap->rows);
16
2ded5f1f544a refactor variable name
Dennis C. M. <dennis@denniscm.com>
parents: 15
diff changeset
161
15
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
162 glRasterPos2f(x, adjusted_y);
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
163 glDrawPixels(glyph_bitmap->width, glyph_bitmap->rows, GL_LUMINANCE, GL_UNSIGNED_BYTE, glyph_bitmap->buffer);
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
164
18
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
165 x += slot->advance.x / 64;
15
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
166 }
0
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
167 }
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
168
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
169
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
170 void display() {
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
171 glClear(GL_COLOR_BUFFER_BIT);
14
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
172
3
e4003f606e07 draw multiple rectangles with loop
Dennis C. M. <dennis@denniscm.com>
parents: 2
diff changeset
173 glBegin(GL_QUADS);
e4003f606e07 draw multiple rectangles with loop
Dennis C. M. <dennis@denniscm.com>
parents: 2
diff changeset
174
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
175 int x = 0;
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
176 for (int i = 0; i < arr_size; i++) {
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
177
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
178 // Bottom left
16
2ded5f1f544a refactor variable name
Dennis C. M. <dennis@denniscm.com>
parents: 15
diff changeset
179 glVertex2f(x, VPADDING);
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
180
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
181 // Top left
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
182 glVertex2f(x, VPADDING + arr[i]);
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
183
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
184 // Top right
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
185 glVertex2f(x + RECT_WIDTH, VPADDING + arr[i]);
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
186
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
187 // Bottom right
16
2ded5f1f544a refactor variable name
Dennis C. M. <dennis@denniscm.com>
parents: 15
diff changeset
188 glVertex2f(x + RECT_WIDTH, VPADDING);
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
189
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
190 x += RECT_WIDTH + SPACE;
3
e4003f606e07 draw multiple rectangles with loop
Dennis C. M. <dennis@denniscm.com>
parents: 2
diff changeset
191 }
e4003f606e07 draw multiple rectangles with loop
Dennis C. M. <dennis@denniscm.com>
parents: 2
diff changeset
192
e4003f606e07 draw multiple rectangles with loop
Dennis C. M. <dennis@denniscm.com>
parents: 2
diff changeset
193 glEnd();
6
40a8bdbe2005 Refactor to array of structures
Dennis C. M. <dennis@denniscm.com>
parents: 5
diff changeset
194
7
f159eec07daf refactor
Dennis C. M. <dennis@denniscm.com>
parents: 6
diff changeset
195 // Render text
4
035d3880da04 render text with number of elements on screen
Dennis C. M. <dennis@denniscm.com>
parents: 3
diff changeset
196 char text[256];
9
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
197
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
198 // Top: Column 1
18
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
199 sprintf(text, "Algorithm: %s", algos[selected_algo].name);
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
200 render_text(20, WINDOW_HEIGHT - 50, text);
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
201
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
202 sprintf(text, "Speed: %i", speed);
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
203 render_text(20, WINDOW_HEIGHT - 80, text);
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
204
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
205 // Top: Column 2
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
206 sprintf(text, "Number of elements: %i", arr_size);
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
207 render_text(500, WINDOW_HEIGHT - 50, text);
9
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
208
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
209 sprintf(text, "Iterations: %i", iter_counter);
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
210 render_text(500, WINDOW_HEIGHT - 80, text);
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
211
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
212
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
213 // Bottom: Column 1
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
214 render_text(20, VPADDING - 50, "Press a or s to select an algorithm.");
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
215 render_text(20, VPADDING - 80, "Press u or d to modify speed.");
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
216 render_text(20, VPADDING - 110, "Press r to randomize the array.");
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
217
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
218 // Bottom: Column 2
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
219 render_text(800, VPADDING - 50, "Press enter to run the algorithm.");
8
f7af7255705e text flickering fixed
Dennis C. M. <dennis@denniscm.com>
parents: 7
diff changeset
220
f7af7255705e text flickering fixed
Dennis C. M. <dennis@denniscm.com>
parents: 7
diff changeset
221 glutSwapBuffers();
f7af7255705e text flickering fixed
Dennis C. M. <dennis@denniscm.com>
parents: 7
diff changeset
222 }
f7af7255705e text flickering fixed
Dennis C. M. <dennis@denniscm.com>
parents: 7
diff changeset
223
6
40a8bdbe2005 Refactor to array of structures
Dennis C. M. <dennis@denniscm.com>
parents: 5
diff changeset
224
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
225 /* Refresh function */
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
226
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
227 void idle() {
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
228 if (run) {
18
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
229 algos[selected_algo].function();
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
230 refresh_counter++;
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
231 iter_counter++;
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
232
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
233 if (refresh_counter == speed) {
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
234 glutPostRedisplay();
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
235 refresh_counter = 0;
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
236 }
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
237
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
238 } else {
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
239 glutPostRedisplay();
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
240 }
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
241
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
242 if (array_sorted()) {
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
243 run = false;
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
244 }
8
f7af7255705e text flickering fixed
Dennis C. M. <dennis@denniscm.com>
parents: 7
diff changeset
245 }
f7af7255705e text flickering fixed
Dennis C. M. <dennis@denniscm.com>
parents: 7
diff changeset
246
f7af7255705e text flickering fixed
Dennis C. M. <dennis@denniscm.com>
parents: 7
diff changeset
247
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
248 /* User input handler */
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
249
8
f7af7255705e text flickering fixed
Dennis C. M. <dennis@denniscm.com>
parents: 7
diff changeset
250 void keyboard(unsigned char key, int x, int y) {
f7af7255705e text flickering fixed
Dennis C. M. <dennis@denniscm.com>
parents: 7
diff changeset
251
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
252 // s: Next algorithm
9
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
253 if (key == 115) {
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
254 algo_selector(1);
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
255 }
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
256
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
257 // a: Previous algorithm
9
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
258 if (key == 97) {
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
259 algo_selector(-1);
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
260 }
b7da0083b706 removing struct?
Dennis C. M. <dennis@denniscm.com>
parents: 8
diff changeset
261
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
262 // r: Reset state
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
263 if (key == 114) {
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
264 randomize_array();
16
2ded5f1f544a refactor variable name
Dennis C. M. <dennis@denniscm.com>
parents: 15
diff changeset
265
2ded5f1f544a refactor variable name
Dennis C. M. <dennis@denniscm.com>
parents: 15
diff changeset
266 // Reset state
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
267 iter_counter = 0;
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
268 refresh_counter = 0;
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
269 run = false;
16
2ded5f1f544a refactor variable name
Dennis C. M. <dennis@denniscm.com>
parents: 15
diff changeset
270
2ded5f1f544a refactor variable name
Dennis C. M. <dennis@denniscm.com>
parents: 15
diff changeset
271 // Reset algo steps
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
272 bs = (struct BubbleSortInfo){0, 0};
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
273 }
18
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
274
17
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
275 // u: Increase speed
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
276 if (key == 117) {
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
277 speed++;
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
278 }
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
279
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
280 // d: reduce speed
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
281 if (key == 100) {
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
282 speed--;
fba66d02f1cf add randomize func and refactor UI
Dennis C. M. <dennis@denniscm.com>
parents: 16
diff changeset
283 }
18
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
284
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
285 // enter: Run program
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
286 if (key == 13) {
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
287 run = true;
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
288 }
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
289
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
290
0
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
291 }
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
292
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
293
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
294 /* Set up functions */
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
295
14
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
296 void setup_gl() {
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
297
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
298 // Set background dark
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
299 glClearColor(0.0, 0.0, 0.0, 1.0);
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
300
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
301 // Set point color and size to 1 pixel
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
302 glColor3f(1.0, 0.7569, 0.0);
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
303 glPointSize(5.0);
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
304
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
305 // Matrix projection and reset with identity
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
306 glMatrixMode(GL_PROJECTION);
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
307 glLoadIdentity();
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
308
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
309 /*
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
310 * Creates projection matrix
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
311 * x increases from left to right (0 to WINDOW_WIDTH)
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
312 * y increases from bottom to top (0 to WINDOW_HEIGHT)
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
313 */
15
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
314
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
315 gluOrtho2D(0, WINDOW_WIDTH, 0, WINDOW_HEIGHT);
14
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
316
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
317 /*
15
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
318 * This fucking line... I spent a day rendering weird symbols
14
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
319 * because the padding that adds FreeType to each row of the bitmap
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
320 * does not match the padding expected by GL.
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
321 */
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
322
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
323 glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
324 }
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
325
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
326
14
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
327 void setup_freetype() {
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
328
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
329 // Init library
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
330 if (FT_Init_FreeType(&ft_library)) {
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
331 fprintf(stderr, "Failed to initialize FreeType library\n");
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
332 exit(1);
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
333 }
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
334
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
335 // Load font
14
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
336 if (FT_New_Face(ft_library, "fonts/JetBrainsMono-Regular.ttf", 0, &ft_face)) {
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
337 fprintf(stderr, "Failed to load font\n");
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
338 exit(1);
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
339 }
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
340
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
341 // Set font size
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
342 if (FT_Set_Pixel_Sizes(ft_face, 0, 24)) {
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
343 fprintf(stderr, "Failed to set font size.\n");
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
344 FT_Done_Face(ft_face);
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
345 FT_Done_FreeType(ft_library);
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
346
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
347 exit(1);
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
348 }
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
349 }
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
350
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
351
0
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
352 int main(int argc, char** argv) {
18
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
353 strcpy(algos[0].name, "Bubble sort");
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
354 algos[0].function = &bubble_sort;
6a5c5b137348 implement method to run the algo function given the selected algo
Dennis C. M. <dennis@denniscm.com>
parents: 17
diff changeset
355
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
356 create_array();
7
f159eec07daf refactor
Dennis C. M. <dennis@denniscm.com>
parents: 6
diff changeset
357
0
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
358 glutInit(&argc, argv);
8
f7af7255705e text flickering fixed
Dennis C. M. <dennis@denniscm.com>
parents: 7
diff changeset
359 glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB);
6
40a8bdbe2005 Refactor to array of structures
Dennis C. M. <dennis@denniscm.com>
parents: 5
diff changeset
360 glutInitWindowSize(WINDOW_WIDTH, WINDOW_HEIGHT);
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
361 glutCreateWindow("Algorithm animator");
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
362
14
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
363 setup_gl();
d055228ca9a6 printing text with custom font
Dennis C. M. <dennis@denniscm.com>
parents: 13
diff changeset
364 setup_freetype();
13
074bde2db09a printing text with custom font but incorrect letters
Dennis C. M. <dennis@denniscm.com>
parents: 12
diff changeset
365
0
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
366 glutDisplayFunc(display);
8
f7af7255705e text flickering fixed
Dennis C. M. <dennis@denniscm.com>
parents: 7
diff changeset
367 glutKeyboardFunc(keyboard);
12
9ba546527bc2 fixing algo speed
Dennis C. M. <dennis@denniscm.com>
parents: 11
diff changeset
368 glutIdleFunc(idle);
0
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
369 glutMainLoop();
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
370
10
f4e0c266321a bubble sort
Dennis C. M. <dennis@denniscm.com>
parents: 9
diff changeset
371 free(arr);
7
f159eec07daf refactor
Dennis C. M. <dennis@denniscm.com>
parents: 6
diff changeset
372
15
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
373 FT_Done_Face(ft_face);
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
374 FT_Done_FreeType(ft_library);
e2fcfcb43fee fix vertical character alignment
Dennis C. M. <dennis@denniscm.com>
parents: 14
diff changeset
375
0
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
376 return 0;
6882194679b5 draw a point
Dennis C. M. <dennis@denniscm.com>
parents:
diff changeset
377 }