1 files changed, 79 insertions, 0 deletions

diff --git a/uisimulator/sdl/lcd-bitmap.c b/uisimulator/sdl/lcd-bitmap.c
new file mode 100644
index 0000000000..db4a98d823
--- /dev/null
+++ b/uisimulator/sdl/lcd-bitmap.c
@@ -0,0 +1,79 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2006 Dan Everton
+ *
+ * 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 "uisdl.h"
+#include "lcd-sdl.h"
+
+SDL_Surface* lcd_surface;
+
+#if LCD_DEPTH <= 8
+SDL_Color lcd_color_zero = {UI_LCD_BGCOLORLIGHT, 0};
+SDL_Color lcd_color_max  = {0, 0, 0, 0};
+#endif
+
+static inline Uint32 get_lcd_pixel(int x, int y)
+{
+#if LCD_DEPTH == 1
+            return ((lcd_framebuffer[y/8][x] >> (y & 7)) & 1);
+#elif LCD_DEPTH == 2
+#if LCD_PIXELFORMAT == HORIZONTAL_PACKING
+            return ((lcd_framebuffer[y][x/4] >> (2 * (x & 3))) & 3);
+#else
+            return ((lcd_framebuffer[y/4][x] >> (2 * (y & 3))) & 3);
+#endif
+#elif LCD_DEPTH == 16
+#if LCD_PIXELFORMAT == RGB565SWAPPED
+            unsigned bits = lcd_framebuffer[y][x];
+            return (bits >> 8) | (bits << 8);
+#else
+            return lcd_framebuffer[y][x];
+#endif
+#endif
+}
+
+void lcd_update(void)
+{
+    /* update a full screen rect */
+    lcd_update_rect(0, 0, LCD_WIDTH, LCD_HEIGHT);
+}
+
+void lcd_update_rect(int x_start, int y_start, int width, int height)
+{
+    sdl_update_rect(lcd_surface, x_start, y_start, width, height, LCD_WIDTH, LCD_HEIGHT,
+        background ? UI_LCD_POSX : 0, background? UI_LCD_POSY : 0,
+        get_lcd_pixel);
+}
+
+
+/* initialise simulator lcd driver */
+void sim_lcd_init(void)
+{
+#if LCD_DEPTH == 16
+    lcd_surface = SDL_CreateRGBSurface(SDL_SWSURFACE, LCD_WIDTH * display_zoom,
+        LCD_HEIGHT * display_zoom, LCD_DEPTH, 0, 0, 0, 0);
+#else
+    lcd_surface = SDL_CreateRGBSurface(SDL_SWSURFACE, LCD_WIDTH * display_zoom,
+        LCD_HEIGHT * display_zoom, 8, 0, 0, 0, 0);
+#endif
+
+#if LCD_DEPTH <= 8
+    sdl_set_gradient(lcd_surface, &lcd_color_zero, &lcd_color_max, (1<<LCD_DEPTH));
+#endif
+}
+