Add color text

1 files changed, 19 insertions, 0 deletions

diff --git a/src/vga.c b/src/vga.c
index cb2c5a8..83ee2c7 100644
--- a/src/vga.c
+++ b/src/vga.c
@@ -101,6 +101,25 @@ void blit(const uint8_t *sprite, const Rect *dst)
         }
 }
 
+void blit_c(const uint8_t *sprite, const Rect *dst, uint8_t c)
+{
+    for (int32_t j = dst->y * 320; j < (dst->y + dst->h) * 320; j += 320)
+        for (int16_t i = dst->x; i < dst->x + dst->w; i++)
+        {
+            uint8_t b = *sprite++;
+
+            /* transparent */
+            if (b == TRANSPARENT)
+                continue;
+
+            /* clipping */
+            if (i < 0 || i >= 320 || j < 0 || j >= 200 * 320)
+                continue;
+
+            buffer[i + j] = b ? c : b;
+        }
+}
+
 void blitrc(const uint8_t *sprite, const Rect *src, const Rect *dst)
 {
     for (int32_t j = dst->y * 320, sy = src->y * src->w; j < (dst->y + dst->h) * 320; j += 320, sy += src->w)