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Modified text rendering to something frame based

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This commit is contained in:
jaseg 2014-03-07 00:49:16 +01:00
parent 7878aa1d45
commit d16223fd25
7 changed files with 89 additions and 85 deletions
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14
host/font.c
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@ -6,7 +6,8 @@
#include <string.h>
#include <errno.h>
void render_glyph(glyph_t *g, color_t *buf, unsigned int bufwidth, unsigned int offx, unsigned int offy, color_t fg, color_t bg){
/* Clips at buffer bounds */
void render_glyph(glyph_t *g, color_t *buf, unsigned int bufwidth, int offx, unsigned int offy, color_t fg, color_t bg){
unsigned int bitmap_row_width = g->width/8;
uint8_t *bitmap = ((uint8_t *)g) + sizeof(glyph_t);
for(unsigned int y=0; y < g->height; y++){
@ -16,10 +17,13 @@ void render_glyph(glyph_t *g, color_t *buf, unsigned int bufwidth, unsigned int
data |= bitmap[y*bitmap_row_width+i];
}
color_t *p = buf + (offy+y)*bufwidth + offx;
for(unsigned int x=0; x < g->width; x++){
color_t c = (data&(1<<(g->width-1))) ? fg : bg;
*p++ = c;
data <<= 1;
/* Take care to only render what's within the framebuffer's bounds */
for(unsigned int x=0; (x < g->width) && (offx+x < bufwidth); x++){
if(offx + x >= 0){
color_t c = (data&(1<<(g->width-1))) ? fg : bg;
*p++ = c;
data <<= 1;
}
}
}
}