1 files changed, 105 insertions, 0 deletions

diff --git a/apps/plugins/pacbox/pacbox_lcd.c b/apps/plugins/pacbox/pacbox_lcd.c
new file mode 100644
index 0000000000..83931b1b68
--- /dev/null
+++ b/apps/plugins/pacbox/pacbox_lcd.c
@@ -0,0 +1,105 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Pacbox - a Pacman Emulator for Rockbox
+ *
+ * Based on PIE - Pacman Instructional Emulator
+ *
+ * Copyright (c) 1997-2003,2004 Alessandro Scotti
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "pacbox.h"
+#include "pacbox_lcd.h"
+#include "arcade.h"
+#include "hardware.h"
+
+void blit_display(fb_data* lcd_framebuffer, unsigned char* vbuf)
+{
+    fb_data* dst;
+    fb_data* next_dst;
+    int x,y;
+
+#ifdef HAVE_LCD_COLOR
+#if (LCD_WIDTH >= 224) && (LCD_HEIGHT >= 288)
+        /* Native resolution = 224x288 */
+        (void)next_dst;
+        dst=&lcd_framebuffer[YOFS*LCD_WIDTH+XOFS];
+        for (y=0;y<ScreenHeight;y++) {
+            for (x=0;x<ScreenWidth;x++) {
+                *(dst++) = palette[*(vbuf++)];
+            }
+            dst += XOFS*2;
+        }
+#elif (LCD_WIDTH >= 288) && (LCD_HEIGHT >= 224)
+        /* Native resolution - rotated 90 degrees = 288x224 */
+        next_dst=&lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+ScreenHeight-1];
+        for( y=ScreenHeight-1; y>=0; y-- ) {
+            dst = (next_dst--);
+            for( x=0; x<ScreenWidth; x++ ) {
+                *dst = palette[*(vbuf++)];
+                dst+=LCD_WIDTH;
+            }
+        }
+#elif (LCD_WIDTH >= 216) && (LCD_HEIGHT >= 168)
+        /* 0.75 scaling - display 3 out of 4 pixels = 216x168 
+           Skipping pixel #2 out of 4 seems to give the most legible display 
+         */
+        next_dst=&lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+((ScreenHeight*3)/4)-1];
+        for (y=ScreenHeight-1;y >= 0; y--) {
+            if ((y & 3) != 1) {
+                dst = (next_dst--);
+                for (x=0;x<ScreenWidth;x++) {
+                    if ((x & 3) == 1) { vbuf++; }
+                    else {
+                       *dst = palette[*(vbuf++)];
+                       dst+=LCD_WIDTH;
+                    }
+                }
+            } else {
+                vbuf+=ScreenWidth;
+            }
+        }
+#elif (LCD_WIDTH >= 144) && (LCD_HEIGHT >= 112)
+        /* 0.5 scaling - display every other pixel = 144x112 */
+        next_dst=&lcd_framebuffer[YOFS*LCD_WIDTH+XOFS+ScreenHeight/2-1];
+        for (y=(ScreenHeight/2)-1;y >= 0; y--) {
+            dst = (next_dst--);
+            for (x=0;x<ScreenWidth/2;x++) {
+                *dst = palette[*(vbuf)];
+                vbuf+=2;
+                dst+=LCD_WIDTH;
+            }
+            vbuf+=ScreenWidth;
+        }
+#endif
+#else  /* Greyscale LCDs */
+#if (LCD_WIDTH >= 144) && (LCD_HEIGHT >= 112)
+#if LCD_PIXELFORMAT == VERTICAL_PACKING
+        /* 0.5 scaling - display every other pixel = 144x112 */
+        next_dst=&lcd_framebuffer[YOFS/4*LCD_WIDTH+XOFS+ScreenHeight/2-1];
+        for (y=(ScreenHeight/2)-1;y >= 0; y--) {
+            dst = (next_dst--);
+            for (x=0;x<ScreenWidth/8;x++) {
+                *dst = (palette[*(vbuf+6)]<<6) | (palette[*(vbuf+4)] << 4) | (palette[*(vbuf+2)] << 2) | palette[*(vbuf)];
+                vbuf+=8;
+                dst+=LCD_WIDTH;
+            }
+            vbuf+=ScreenWidth;
+        }
+#endif /* Vertical Packing */
+#endif /* Size >= 144x112 */
+#endif /* Not Colour */
+}