New EMD driver for the ISEPIC cartridge written and contributed by

[cc65] / include / tgi.h

diff --git a/include/tgi.h b/include/tgi.h
index 941c8a7fe97bc6224c3f9d2fe74f006a5f3cee8a..19630d0d94e6760f6b433158e541a98837443d62 100644 (file)
--- a/include/tgi.h
+++ b/include/tgi.h
@@ -53,7 +53,15 @@
 
 
 
-/* Constants used for tgi_textstyle */
+/* Color constants */
+#define TGI_COLOR_BLACK         0
+#define TGI_COLOR_WHITE         1
+
+/* Font constants for use with tgi_textstyle */
+#define TGI_FONT_BITMAP         0
+#define TGI_FONT_VECTOR         1
+
+/* Direction constants for use with tgi_textstyle */
 #define TGI_TEXT_HORIZONTAL     0
 #define TGI_TEXT_VERTICAL       1
 
@@ -63,6 +71,9 @@ extern const char tgi_stddrv[];
 /* The default tgi mode for a platform */
 extern const unsigned char tgi_stdmode;
 
+/* A vector font definition */
+typedef struct tgi_vectorfont tgi_vectorfont;
+
 
 
 /*****************************************************************************/
@@ -104,6 +115,21 @@ void __fastcall__ tgi_done (void);
  * the driver!
  */
 
+const tgi_vectorfont* __fastcall__ tgi_load_vectorfont (const char* name);
+/* Load a vector font into memory and return it. In case of errors, NULL is
+ * returned and an error is set, which can be retrieved using tgi_geterror.
+ * To use the font, it has to be installed using tgi_install_vectorfont.
+ */
+
+void __fastcall__ tgi_install_vectorfont (const tgi_vectorfont* font);
+/* Install a vector font for use. More than one vector font can be loaded,
+ * but only one can be active. This function is used to tell which one. Call
+ * with a NULL pointer to uninstall the currently installed font.
+ */
+
+void tgi_free_vectorfont (const tgi_vectorfont* font);
+/* Free a vector font that was previously loaded into memory. */
+
 unsigned char __fastcall__ tgi_geterror (void);
 /* Return the error code for the last operation. This will also clear the
  * error.
@@ -187,12 +213,42 @@ void __fastcall__ tgi_lineto (int x2, int y2);
 void __fastcall__ tgi_circle (int x, int y, unsigned char radius);
 /* Draw a circle in the current drawing color. */
 
+void __fastcall__ tgi_ellipse (int x, int y, unsigned char rx, unsigned char ry);
+/* Draw a full ellipse with center at x/y and radii rx/ry using the current
+ * drawing color.
+ */
+
+void __fastcall__ tgi_arc (int x, int y, unsigned char rx, unsigned char ry,
+                           unsigned sa, unsigned ea);
+/* Draw an ellipse arc with center at x/y and radii rx/ry using the current
+ * drawing color. The arc covers the angle between sa and ea (startangle and
+ * endangle), which must be in the range 0..360 (otherwise the function may
+ * bevave unextectedly).
+ */
+
+void __fastcall__ tgi_pieslice (int x, int y, unsigned char rx, unsigned char ry,
+                                unsigned sa, unsigned ea);
+/* Draw an ellipse pie slice with center at x/y and radii rx/ry using the
+ * current drawing color. The pie slice covers the angle between sa and ea
+ * (startangle and endangle), which must be in the range 0..360 (otherwise the
+ * function may behave unextectedly).
+ */
+
 void __fastcall__ tgi_bar (int x1, int y1, int x2, int y2);
 /* Draw a bar (a filled rectangle) using the current color. */
 
-void __fastcall__ tgi_textstyle (unsigned char magx, unsigned char magy,
-                                 unsigned char dir);
-/* Set the style for text output. */
+void __fastcall__ tgi_textscale (unsigned width, unsigned height);
+/* Set the scaling for text output. The scaling factors for width and height
+ * are 8.8 fixed point values. This means that $100 = 1 $200 = 2 etc.
+ */
+
+void __fastcall__ tgi_textstyle (unsigned width, unsigned height,
+                                 unsigned char dir, unsigned char font);
+/* Set the style for text output. The scaling factors for width and height
+ * are 8.8 fixed point values. This means that $100 = 1 $200 = 2 etc.
+ * dir is one of the TGI_TEXT_XXX constants. font is one of the TGI_FONT_XXX
+ * constants.
+ */
 
 unsigned __fastcall__ tgi_textwidth (const char* s);
 /* Calculate the width of the text in pixels according to the current text
@@ -214,7 +270,7 @@ void __fastcall__ tgi_outtextxy (int x, int y, const char* s);
  * the end of the text.
  */
 
-unsigned __fastcall__ tgi_ioctl (unsigned char code, unsigned val);
+unsigned __fastcall__ tgi_ioctl (unsigned char code, void* data);
 /* Call the driver specific control function. What this function does for
  * a specific code depends on the driver. The driver will set an error
  * for unknown codes or values.