Merge branch 'master' of gitlab:wintermute/hackover2013-badge-firmware

[hackover2013-badge-firmware.git] / badge / ui / font.c

diff --git a/badge/ui/font.c b/badge/ui/font.c
index 1ea57ad..5914cd1 100644 (file)
--- a/badge/ui/font.c
+++ b/badge/ui/font.c
@@ -1,18 +1,43 @@
 #include "font.h"
 #include "sprite.h"
 
+#ifdef __linux__
+#include <stdio.h>
+typedef FILE *FIL;
+typedef uint8_t FRESULT;
+typedef unsigned UINT;
+enum { FR_OK = 0 };
+
+void f_close(FIL *fd) { fclose(*fd); *fd = NULL; }
+FRESULT f_lseek(FIL *fd, unsigned pos) { return fseek(*fd, pos, SEEK_SET); }
+FRESULT f_read(FIL *fd, unsigned char *buffer, size_t buflen, UINT *bytes) {
+  *bytes = fread(buffer, 1, buflen, *fd);
+  return *bytes == 0;
+}
+
+#else
 #include <drivers/fatfs/ff.h>
+#endif
+
+static FRESULT open_font_file(FIL *fd) {
+#ifdef __linux__
+  *fd = fopen("../sprites/font.dat", "r");
+  return fd ? 0 : -1;
+#else
+  return f_open(fd, "/font.dat", FA_OPEN_EXISTING | FA_READ);
+#endif
+}
 
 static uint8_t badge_framebuffer_render_char_with_fd(badge_framebuffer *fb, int8_t pos_x, int8_t pos_y, char c, FIL *fd) {
   UINT readbytes;
-  uint8_t buffer[BADGE_FONT_WIDTH];
+  uint8_t buffer[BADGE_FONT_GLYPH_WIDTH];
 
   if(c == 32) {
     // intentionally left empty.
   } else if(c >= 32 &&
-     FR_OK == f_lseek(fd, (c - 33) * BADGE_FONT_WIDTH) &&
+     FR_OK == f_lseek(fd, (c - 33) * BADGE_FONT_GLYPH_WIDTH) &&
      FR_OK == f_read(fd, buffer, sizeof(buffer), &readbytes)) {
-    badge_sprite sp = { BADGE_FONT_WIDTH, BADGE_FONT_HEIGHT, buffer };
+    badge_sprite sp = { BADGE_FONT_GLYPH_WIDTH, BADGE_FONT_HEIGHT, buffer };
     badge_framebuffer_blt(fb, pos_x, pos_y, &sp, 0);
   } else {
     return -1;
@@ -24,7 +49,7 @@ static uint8_t badge_framebuffer_render_char_with_fd(badge_framebuffer *fb, int8
 uint8_t badge_framebuffer_render_char(badge_framebuffer *fb, int8_t pos_x, int8_t pos_y, char c) {
   FIL fd;
 
-  if(FR_OK == f_open(&fd, "font.dat", FA_OPEN_EXISTING | FA_READ)) {
+  if(FR_OK == open_font_file(&fd)) {
     badge_framebuffer_render_char_with_fd(fb, pos_x, pos_y, c, &fd);
     f_close(&fd);
     return 0;
@@ -37,7 +62,7 @@ uint8_t badge_framebuffer_render_text(badge_framebuffer *fb, int8_t pos_x, int8_
   uint8_t count = 0;
   FIL fd;
 
-  if(FR_OK == f_open(&fd, "font.dat", FA_OPEN_EXISTING | FA_READ)) {
+  if(FR_OK == open_font_file(&fd)) {
     while(*text) {
       if(0 != badge_framebuffer_render_char_with_fd(fb, pos_x, pos_y, *text, &fd)) {
         break;
@@ -53,3 +78,30 @@ uint8_t badge_framebuffer_render_text(badge_framebuffer *fb, int8_t pos_x, int8_
 
   return count;
 }
+
+static uint8_t badge_framebuffer_render_number_with_fd(badge_framebuffer *fb, int8_t *pos_x, int8_t pos_y, uint8_t number, FIL *fd) {
+  if(number >= 10) {
+    badge_framebuffer_render_number_with_fd(fb, pos_x, pos_y, number / 10, fd);
+  }
+
+  uint8_t err = badge_framebuffer_render_char_with_fd(fb, *pos_x, pos_y, '0' + number % 10, fd);
+
+  if(err != 0) return err;
+
+  *pos_x += BADGE_FONT_WIDTH;
+  return 0;
+}
+
+uint8_t badge_framebuffer_render_number(badge_framebuffer *fb, int8_t pos_x, int8_t pos_y, uint8_t number) {
+  FIL fd;
+
+  if(FR_OK == open_font_file(&fd)) {
+    uint8_t err = badge_framebuffer_render_number_with_fd(fb, &pos_x, pos_y, number, &fd);
+
+    if(err != 0) {
+      return err;
+    }
+  }
+
+  return 0;
+}