+/* ------------------------------------------------------------------------- */
+/* custom cursor fuctions */
+/* ------------------------------------------------------------------------- */
+
+static SDL_Cursor *create_cursor(const char **image)
+{
+ int i, row, col;
+ Uint8 data[4*32];
+ Uint8 mask[4*32];
+ int hot_x, hot_y;
+
+ i = -1;
+ for (row=0; row<32; ++row)
+ {
+ for (col=0; col<32; ++col)
+ {
+ if (col % 8)
+ {
+ data[i] <<= 1;
+ mask[i] <<= 1;
+ }
+ else
+ {
+ i++;
+ data[i] = mask[i] = 0;
+ }
+
+ switch (image[4+row][col])
+ {
+ case 'X':
+ data[i] |= 0x01;
+ mask[i] |= 0x01;
+ break;
+ case '.':
+ mask[i] |= 0x01;
+ break;
+ case ' ':
+ break;
+ }
+ }
+ }
+
+ sscanf(image[4+row], "%d,%d", &hot_x, &hot_y);
+
+ return SDL_CreateCursor(data, mask, 32, 32, hot_x, hot_y);
+}
+
+void SDLSetMouseCursor(const char **cursor_image)
+{
+ static const char **last_cursor_image = NULL;
+ static SDL_Cursor *cursor_default = NULL;
+ static SDL_Cursor *cursor_current = NULL;
+
+ if (cursor_default == NULL)
+ cursor_default = SDL_GetCursor();
+
+ if (cursor_image != NULL && cursor_image != last_cursor_image)
+ {
+ cursor_current = create_cursor(cursor_image);
+ last_cursor_image = cursor_image;
+ }
+
+ SDL_SetCursor(cursor_image ? cursor_current : cursor_default);
+}
+
+