X-Git-Url: http://4ch.mooo.com/gitweb/?a=blobdiff_plain;f=16%2Fmx16%2Fmodex16.h;fp=16%2Fmx16%2Fmodex16.h;h=08e7b3606c123555757328154b5c841dcbd16eae;hb=2d527c547173edff234815d495f298e07bc24a18;hp=0000000000000000000000000000000000000000;hpb=923244a5fb111f4fcef0563bd7b3dbc1a132c6c7;p=16.git

diff --git a/16/mx16/modex16.h b/16/mx16/modex16.h
new file mode 100644
index 00000000..08e7b360
--- /dev/null
+++ b/16/mx16/modex16.h
@@ -0,0 +1,94 @@
+/*
+ * Functions for handling modex and doing other basic graphics stuff.
+ */
+#ifndef MODEX16_H
+#define MODEX16_H
+#include <conio.h>
+#include "types.h"
+
+/* -========================== Types & Macros ==========================- */
+#define PAGE_OFFSET(x,y) (((y)<<6)+((y)<<4)+((x)>>2))
+#define PLANE(x) (1<< (x&3))
+#define SELECT_ALL_PLANES() outpw(0x03c4, 0xff02)
+typedef struct {
+    byte *data;
+    word width;
+    word height;
+    byte *palette;
+} bitmap_t;
+
+typedef struct {
+    byte far* data;	/* the data for the page */
+    word dx;		/* col we are viewing on the virtual screen */
+    word dy;		/* row we are viewing on the virtual screen */
+    word width;		/* virtual width of the page */
+    word height;	/* virtual height of the page */
+} page_t;
+
+/* -============================ Functions =============================- */
+/* mode switching, page, and plane functions */
+void modexEnter();
+void modexLeave();
+page_t modexDefaultPage();
+page_t modexNextPage(page_t *p);
+void modexShowPage(page_t *page);
+void modexPanPage(page_t *page, int dx, int dy);
+void modexSelectPlane(byte plane);
+void modexClearRegion(page_t *page, int x, int y, int w, int h, byte color);
+void modexDrawBmp(page_t *page, int x, int y, bitmap_t *bmp);
+void modexDrawBmpRegion(page_t *page, int x, int y, int rx, int ry, int rw, int rh, bitmap_t *bmp);
+void modexDrawSprite(page_t *page, int x, int y, bitmap_t *bmp);
+void modexDrawSpriteRegion(page_t *page, int x, int y, int rx, int ry, int rw, int rh, bitmap_t *bmp);
+
+/* Palette fade and flash effects */
+void modexFadeOn(word fade, byte *palette);
+void modexFadeOff(word fade, byte *palette);
+void modexFlashOn(word fade, byte *palette);
+void modexFlashOff(word fade, byte *palette);
+
+/* palette loading and saving */
+void modexPalSave(byte *palette);
+byte *modexNewPal();
+void modexLoadPalFile(char *filename, byte **palette);
+void modexSavePalFile(char *filename, byte *palette);
+
+/* fixed palette functions */
+void modexPalBlack();
+void modexPalWhite();
+
+/* utility functions */
+void modexPalUpdate(byte *p);
+void modexWaitBorder();
+
+/* bitmap functions */
+bitmap_t modexLoadPcx(char *filename);
+
+/* -======================= Constants & Vars ==========================- */
+extern byte far*  VGA;  /* The VGA Memory */
+#define SCREEN_SEG		0xa000
+#define VIDEO_INT		0x10
+#define SET_MODE		0x00
+#define VGA_256_COLOR_MODE 	0x13
+#define TEXT_MODE		0x03
+#define SCREEN_WIDTH		320
+#define SCREEN_HEIGHT		240
+#define PAGE_SIZE		(word)(SCREEN_WIDTH/4 * SCREEN_HEIGHT)
+
+#define AC_INDEX		0x03c0
+#define SC_INDEX		0x03c4
+#define SC_DATA			0x03c5
+#define CRTC_INDEX		0x03d4
+#define CRTC_DATA		0x03d5
+#define GC_INDEX		0x03ce
+#define MISC_OUTPUT		0x03c2
+#define HIGH_ADDRESS 		0x0C
+#define LOW_ADDRESS		0x0D
+#define VRETRACE		0x08
+#define INPUT_STATUS_1		0x03da
+#define DISPLAY_ENABLE		0x01
+#define MAP_MASK		0x02
+#define PAL_READ_REG            0x03C7   /* Color register, read address */
+#define PAL_WRITE_REG           0x03C8   /* Color register, write address */
+#define PAL_DATA_REG            0x03C9   /* Color register, data port */
+#define PAL_SIZE                (256 * 3)
+#endif