X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fintroscr.c;h=170cab4618a0ecf4bfd629aa234e05172b4345c1;hb=HEAD;hp=610db90c74c5c4ae9d838f485dc9d818c0ea3bdb;hpb=fdf6f2783b2f528f4d6d377ac046aafc5fed3f01;p=eradicate

diff --git a/src/introscr.c b/src/introscr.c
index 610db90..170cab4 100644
--- a/src/introscr.c
+++ b/src/introscr.c
@@ -13,7 +13,7 @@ static long start_time;
 
 int intro_init(void)
 {
-	if(!(logo = img_load_pixels("data/msglogo.jpg", &logo_width, &logo_height, IMG_FMT_RGB24))) {
+	if(!(logo = img_load_pixels("data/msglogo.jpg", &logo_width, &logo_height, IMG_FMT_BGRA32))) {
 		fprintf(stderr, "failed to load logo image\n");
 		return -1;
 	}
@@ -37,13 +37,12 @@ void intro_stop(void)
 {
 }
 
+void fade_image(void *dest, void *src, uint16_t fade);
+
 void intro_draw(void)
 {
-	int i, j;
 	long tm;
 	uint16_t fade;
-	unsigned char *src = logo;
-	uint16_t *dest = fb_pixels;
 
 	tm = time_msec - start_time;
 	if(tm < FADE_DUR) {
@@ -53,20 +52,29 @@ void intro_draw(void)
 	} else if(tm < FADE_DUR * 3) {
 		fade = 256 - (tm - 2 * FADE_DUR) * 256 / FADE_DUR;
 	} else {
+		fade = 0;
 		menu_start();
 		return;
 	}
 
-	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;
+#ifdef USE_MMX
+	fade_image(fb_pixels, logo, fade);
+#else
+	{
+		int i, j;
+		uint32_t *src = logo;
+		uint16_t *dest = fb_pixels;
+		for(i=0; i<640*480; i++) {
+			uint32_t pix = *src++;
+			uint16_t r = (uint16_t)UNPACK_R32(pix) * fade / 256;
+			uint16_t g = (uint16_t)UNPACK_G32(pix) * fade / 256;
+			uint16_t b = (uint16_t)UNPACK_B32(pix) * fade / 256;
 			*dest++ = PACK_RGB16(r, g, b);
 		}
 	}
+#endif
 
-	blit_frame(fb_pixels, 1);
+	blit_frame(fb_pixels, 0);
 }
 
 void intro_keyb(int key, int pressed)