intro screen

[eradicate] / src / introscr.c

diff --git a/src/introscr.c b/src/introscr.c
new file mode 100644 (file)
index 0000000..16567ff
--- /dev/null
+++ b/src/introscr.c
@@ -0,0 +1,60 @@
+#include <stdio.h>
+#include "screens.h"
+#include "imago2.h"
+#include "gfx.h"
+#include "gfxutil.h"
+#include "game.h"
+
+#define FADE_DUR       1024
+
+static void *logo;
+static int logo_width, logo_height;
+static long start_time;
+
+int intro_init(void)
+{
+       if(!(logo = img_load_pixels("data/msglogo.jpg", &logo_width, &logo_height, IMG_FMT_RGB24))) {
+               fprintf(stderr, "failed to load logo image\n");
+               return -1;
+       }
+       return 0;
+}
+
+void intro_cleanup(void)
+{
+       img_free_pixels(logo);
+}
+
+void intro_start(void)
+{
+       start_time = time_msec;
+}
+
+void intro_stop(void)
+{
+}
+
+void intro_draw(void)
+{
+       int i, j;
+       uint16_t fade;
+       unsigned char *src = logo;
+       uint16_t *dest = fb_pixels;
+
+       fade = (time_msec - start_time) * 256 / FADE_DUR;
+       if(fade > 256) fade = 256;
+
+       for(i=0; i<fb_height; i++) {
+               for(j=0; j<fb_width; j++) {
+                       uint16_t r = (uint16_t)*src++ * fade / 256;
+                       uint16_t g = (uint16_t)*src++ * fade / 256;
+                       uint16_t b = (uint16_t)*src++ * fade / 256;
+                       *dest++ = PACK_RGB16(r, g, b);
+                       src += 3;
+               }
+       }
+}
+
+void intro_keyb(int key, int pressed)
+{
+}