5 files changed, 107 insertions, 0 deletions
diff --git a/frontends/calculator/CEdev/examples/gfx_char/autotester.json b/frontends/calculator/CEdev/examples/gfx_char/autotester.json
new file mode 100644
index 0000000..66dfe16
--- /dev/null
+++ b/frontends/calculator/CEdev/examples/gfx_char/autotester.json
@@ -0,0 +1,30 @@
+{
+  "rom": "84pce_515.rom",
+  "transfer_files": [
+    "bin/DEMO.8xp"
+  ],
+  "target": {
+    "name": "DEMO",
+    "isASM": true
+  },
+  "sequence": [
+    "action|launch",
+    "hashWait|1",
+    "key|enter",
+    "hashWait|2"
+  ],
+  "hashes": {
+    "1": {
+      "description": "Test flipped text on black background",
+      "start": "vram_start",
+      "size": "vram_8_size",
+      "expected_CRCs": [ "198A8841" ]
+    },
+    "2": {
+      "description": "Back to the home screen (exit check)",
+      "start": "vram_start",
+      "size": "vram_16_size",
+      "expected_CRCs": [ "FFAF89BA", "101734A5", "9DA19F44" ]
+    }
+  }
+}
diff --git a/frontends/calculator/CEdev/examples/gfx_char/makefile b/frontends/calculator/CEdev/examples/gfx_char/makefile
new file mode 100644
index 0000000..1f1b36b
--- /dev/null
+++ b/frontends/calculator/CEdev/examples/gfx_char/makefile
@@ -0,0 +1,15 @@
+# ----------------------------
+# Set NAME to the program name
+# Set ICON to the png icon file name
+# Set DESCRIPTION to display within a compatible shell
+# Set COMPRESSED to "YES" to create a compressed program
+# ----------------------------
+
+NAME        ?= DEMO
+COMPRESSED  ?= NO
+ICON        ?= iconc.png
+DESCRIPTION ?= "C SDK Demo"
+
+# ----------------------------
+
+include $(CEDEV)/include/.makefile
diff --git a/frontends/calculator/CEdev/examples/gfx_char/readme.md b/frontends/calculator/CEdev/examples/gfx_char/readme.md
new file mode 100644
index 0000000..7889ac8
--- /dev/null
+++ b/frontends/calculator/CEdev/examples/gfx_char/readme.md
@@ -0,0 +1,10 @@
+### GraphX Character Demo
+
+A simple demo showing an upside down string.
+
+![Screenshot](screenshot.png)
+
+---
+
+This demo is a part of the C SDK Toolchain for use on the CE.
+
diff --git a/frontends/calculator/CEdev/examples/gfx_char/screenshot.png b/frontends/calculator/CEdev/examples/gfx_char/screenshot.png
new file mode 100644
index 0000000..6eefa42
--- /dev/null
+++ b/frontends/calculator/CEdev/examples/gfx_char/screenshot.png
diff --git a/frontends/calculator/CEdev/examples/gfx_char/src/main.c b/frontends/calculator/CEdev/examples/gfx_char/src/main.c
new file mode 100644
index 0000000..7d1b5ec
--- /dev/null
+++ b/frontends/calculator/CEdev/examples/gfx_char/src/main.c
@@ -0,0 +1,52 @@
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <tice.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <graphx.h>
+
+/* Use some random color as the transparent one */
+#define TRANSPARENT_COLOR 10
+#define FONT_WIDTH        8
+#define FONT_HEIGHT       8
+
+/* Function prototypes */
+void printu(char *str, int x, int y);
+
+const char *my_str = "!!DEPPILF si txet sihT";
+
+void main(void) {
+    /* Initialize the 8bpp graphics */
+    gfx_Begin();
+    gfx_FillScreen(gfx_black);
+
+    /* Setup the colors */
+    gfx_SetTextFGColor(gfx_white);
+
+    /* Set the transparent text background color */
+    gfx_SetTextBGColor(TRANSPARENT_COLOR);
+    gfx_SetTextTransparentColor(TRANSPARENT_COLOR);
+    gfx_SetMonospaceFont(FONT_WIDTH);
+
+    /* Print some upside down text */
+    printu(my_str, (LCD_WIDTH - gfx_GetStringWidth(my_str)) / 2, (LCD_HEIGHT - FONT_HEIGHT) / 2);
+
+    /* Wait for key */
+    while (!os_GetCSC());
+
+    /* Finish the graphics */
+    gfx_End();
+}
+
+void printu(char *str, int x, int y) {
+    gfx_TempSprite(my_char, 8, 8);
+
+    while (*str) {
+        gfx_TransparentSprite(gfx_RotateSpriteHalf(gfx_GetSpriteChar(*str), my_char), x, y);
+        x += gfx_GetCharWidth(*str++);
+    }
+}