invalidations and dirty bits, trying to minimize screen updates

[retroray] / src / dos / vidsys.c

diff --git a/src/dos/vidsys.c b/src/dos/vidsys.c
index 77d1c0c..9ee925e 100644 (file)
--- a/src/dos/vidsys.c
+++ b/src/dos/vidsys.c
@@ -197,14 +197,35 @@ void vid_getpal(int idx, int count, struct vid_color *col)
        cur_mode->ops.getpal(idx, count, col);
 }
 
+void vid_blit(int x, int y, int w, int h, void *src, int pitch)
+{
+       if(pitch <= 0) {
+               pitch = cur_mode->width << 2;
+       }
+       cur_mode->ops.blit(x, y, w, h, src, pitch);
+}
+
 void vid_blitfb(void *fb, int pitch)
 {
        if(pitch <= 0) {
-               pitch = cur_mode->pitch;
+               pitch = cur_mode->width << 2;
        }
        cur_mode->ops.blitfb(fb, pitch);
 }
 
+void vid_blit32(int x, int y, int w, int h, uint32_t *src, int pitch)
+{
+       if(cur_mode->bpp == 32) {
+               vid_blit(x, y, w, h, src, pitch);
+               return;
+       }
+
+       if(pitch <= 0) {
+               pitch = cur_mode->width << 2;
+       }
+       /* XXX */
+}
+
 void vid_blitfb32(uint32_t *src, int pitch)
 {
        int i, j, winpos, winleft, endskip;