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Makefile now tracks headers

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This commit is contained in:
John Alanbrook
2022-01-31 23:04:59 +00:00
parent a45862c454
commit 549753d0c2
5 changed files with 60 additions and 72 deletions
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111
source/engine/font.c
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@@ -11,17 +11,19 @@
#define STB_TRUETYPE_IMPLEMENTATION
#include <stb_truetype.h>
static struct Character Characters[127] = { '\0' };
static uint32_t VBO = 0;
static uint32_t VAO = 0;
unsigned char ttf_buffer[24 << 20];
unsigned char temp_bitmap[512 * 512];
static struct sFont *font;
struct sFont *font;
static struct mShader *shader;
void font_init() {
shader = MakeShader("textvert.glsl", "textfrag.glsl");
}
struct sFont *MakeFont(const char *fontfile, int height)
{
struct sFont *newfont = calloc(1, sizeof(struct sFont));
@@ -65,12 +67,12 @@ struct sFont *MakeFont(const char *fontfile, int height)
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER,
GL_LINEAR_MIPMAP_LINEAR);
Characters[c].TextureID = ftexture;
Characters[c].Advance = advance;
Characters[c].Size[0] = w;
Characters[c].Size[1] = h;
Characters[c].Bearing[0] = lsb;
Characters[c].Bearing[1] = 0;
newfont->Characters[c].TextureID = ftexture;
newfont->Characters[c].Advance = advance;
newfont->Characters[c].Size[0] = w;
newfont->Characters[c].Size[1] = h;
newfont->Characters[c].Bearing[0] = lsb;
newfont->Characters[c].Bearing[1] = 0;
}
// configure VAO/VBO for texture quads
@@ -157,10 +159,13 @@ void sdrawCharacter(struct Character c, mfloat_t cursor[2], float scale,
}
void text_settype(struct sFont *mfont, struct mShader *mshader)
void text_settype(struct sFont *mfont)
{
font = mfont;
shader = mshader;
}
void strwidth(const char *str) {
}
void renderText(const char *text, mfloat_t pos[2], float scale, mfloat_t color[3], float lw)
@@ -176,69 +181,47 @@ void renderText(const char *text, mfloat_t pos[2], float scale, mfloat_t color[3
glBindVertexArray(VAO);
glBindBuffer(GL_ARRAY_BUFFER, VBO);
char modText[sizeof(*text)];
strcpy(modText, text);
char *line, *wordstart;
line = strtok(modText, "\n");
while (line != NULL) {
cursor[0] = pos[0];
int wordWidth = 0;
// iterate through all characters
while (*line != '\0') {
wordstart = line;
if (!isspace(*line)) {
struct Character ch = Characters[*line];
if (lw > 0
&& (cursor[0] + ((ch.Advance >> 6) * scale) - pos[0] >=
lw)) {
cursor[0] = pos[0];
cursor[1] -= scale * font->height;
} else {
// now advance cursors for next glyph (note that advance is number of 1/64 pixels)
cursor[0] += (ch.Advance >> 6) * scale; // bitshift by 6 to get value in pixels (2^6 = 64 (divide amount of 1/64th pixels by 64 to get amount of pixels))
}
sdrawCharacter(ch, cursor, scale, shader, color);
++line;
} else {
while (!isspace(*line) || *line != '\0') { // Seek line to the end of the word
++line;
wordWidth += (Characters[*line].Advance >> 6) * scale;
}
// Now wordStart and stringPos surround the word, go through them. If the word that's about to be drawn goes past the line width, go to next line
if (lw > 0 && (cursor[0] + wordWidth - pos[0] >= lw)) {
cursor[0] = pos[0];
cursor[1] -= scale * font->height;
}
while (wordstart < line) { // Go through
line = text;
struct Character ch = Characters[*wordstart];
sdrawCharacter(Characters[*wordstart], cursor, scale,
shader, color);
while (*line != '\0') {
cursor[0] += (ch.Advance >> 6) * scale;
++wordstart;
}
}
switch (*line) {
case '\n':
cursor[1] -= scale * font->height;
line++;
break;
case ' ':
sdrawCharacter(font->Characters[*line], cursor, scale, shader, color);
cursor[0] += font->Characters[*line].Advance * scale;
line++;
break;
default:
wordstart = line;
int wordWidth = 0;
}
cursor[1] -= scale * font->height;
while (!isspace(*line) && *line != '\0') {
wordWidth += font->Characters[*line].Advance * scale;
line++;
}
line = strtok(NULL, "\n");
if (lw > 0 && (cursor[0] + wordWidth - pos[0]) >= lw) {
cursor[0] = pos[0];
cursor[1] -= scale * font->height;
}
while (wordstart < line) {
sdrawCharacter(font->Characters[*wordstart], cursor, scale, shader, color);
cursor[0] += font->Characters[*wordstart].Advance * scale;
wordstart++;
}
}
}
glBindBuffer(GL_ARRAY_BUFFER, 0);
glBindVertexArray(0);
glBindTexture(GL_TEXTURE_2D, 0);