16_ca needs huge amounts of work and I should remember what needs to be done soon...

[16.git] / 16 / modex16 / modex16.h

diff --git a/16/modex16/modex16.h b/16/modex16/modex16.h
new file mode 100755 (executable)
index 0000000..7757310
--- /dev/null
+++ b/16/modex16/modex16.h
@@ -0,0 +1,86 @@
+/*\r
+ * Functions for handling modex and doing other basic graphics stuff.\r
+ */\r
+#ifndef MODEX16_H\r
+#define MODEX16_H\r
+#include <conio.h>\r
+#include "types.h"\r
+#include "bitmap.h"\r
+\r
+/* -========================== Types & Macros ==========================- */\r
+#define PAGE_OFFSET(x,y) (((y)<<6)+((y)<<4)+((x)>>2))\r
+#define PLANE(x) (1<< (x&3))\r
+#define SELECT_ALL_PLANES() outpw(0x03c4, 0xff02)\r
+\r
+typedef struct {\r
+    byte far* data;    /* the data for the page */\r
+    word dx;           /* col we are viewing on the virtual screen */\r
+    word dy;           /* row we are viewing on the virtual screen */\r
+    word width;                /* virtual width of the page */\r
+    word height;       /* virtual height of the page */\r
+} page_t;\r
+\r
+/* -============================ Functions =============================- */\r
+/* mode switching, page, and plane functions */\r
+void modexEnter();\r
+void modexLeave();\r
+page_t modexDefaultPage();\r
+page_t modexNextPage(page_t *p);\r
+void modexShowPage(page_t *page);\r
+void modexPanPage(page_t *page, int dx, int dy);\r
+void modexSelectPlane(byte plane);\r
+void modexClearRegion(page_t *page, int x, int y, int w, int h, byte color);\r
+void modexDrawBmp(page_t *page, int x, int y, bitmap_t *bmp);\r
+void modexDrawBmpRegion(page_t *page, int x, int y, int rx, int ry, int rw, int rh, bitmap_t *bmp);\r
+void modexDrawSprite(page_t *page, int x, int y, bitmap_t *bmp);\r
+void modexDrawSpriteRegion(page_t *page, int x, int y, int rx, int ry, int rw, int rh, bitmap_t *bmp);\r
+\r
+/* Palette fade and flash effects */\r
+void modexFadeOn(word fade, byte *palette);\r
+void modexFadeOff(word fade, byte *palette);\r
+void modexFlashOn(word fade, byte *palette);\r
+void modexFlashOff(word fade, byte *palette);\r
+\r
+/* palette loading and saving */\r
+void modexPalSave(byte *palette);\r
+byte *modexNewPal();\r
+void modexLoadPalFile(char *filename, byte **palette);\r
+void modexSavePalFile(char *filename, byte *palette);\r
+\r
+/* fixed palette functions */\r
+void modexPalBlack();\r
+void modexPalWhite();\r
+\r
+/* utility functions */\r
+void modexPalUpdate(byte *p);\r
+void modexWaitBorder();\r
+\r
+/* -======================= Constants & Vars ==========================- */\r
+extern byte far*  VGA;  /* The VGA Memory */\r
+#define SCREEN_SEG             0xa000\r
+#define VIDEO_INT              0x10\r
+#define SET_MODE               0x00\r
+#define VGA_256_COLOR_MODE     0x13\r
+#define TEXT_MODE              0x03\r
+#define SCREEN_WIDTH           320\r
+#define SCREEN_HEIGHT          240\r
+#define PAGE_SIZE              (word)(SCREEN_WIDTH/4 * SCREEN_HEIGHT)\r
+\r
+#define AC_INDEX               0x03c0\r
+#define SC_INDEX               0x03c4\r
+#define SC_DATA                        0x03c5\r
+#define CRTC_INDEX             0x03d4\r
+#define CRTC_DATA              0x03d5\r
+#define GC_INDEX               0x03ce\r
+#define MISC_OUTPUT            0x03c2\r
+#define HIGH_ADDRESS           0x0C\r
+#define LOW_ADDRESS            0x0D\r
+#define VRETRACE               0x08\r
+#define INPUT_STATUS_1         0x03da\r
+#define DISPLAY_ENABLE         0x01\r
+#define MAP_MASK               0x02\r
+#define PAL_READ_REG            0x03C7   /* Color register, read address */\r
+#define PAL_WRITE_REG           0x03C8   /* Color register, write address */\r
+#define PAL_DATA_REG            0x03C9   /* Color register, data port */\r
+#define PAL_SIZE                (256 * 3)\r
+#endif\r