X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?p=dosdemo;a=blobdiff_plain;f=src%2Fdos%2Fvbe.h;h=84044e305a4f9277679291da66f41a7d6cf96b5a;hp=734f94d20481f793a8863fa0a198cd0e6b3bd465;hb=57348c2e13f4de9e49f8428b9fec3f47f863a257;hpb=05672cb8988cd30a798ea3fbce124695fc76f09c

diff --git a/src/dos/vbe.h b/src/dos/vbe.h
index 734f94d..84044e3 100644
--- a/src/dos/vbe.h
+++ b/src/dos/vbe.h
@@ -64,10 +64,26 @@ struct vbe_mode_info {
 	uint8_t lfb_xsize, lfb_xpos;
 	uint32_t max_pixel_clock;
 
-	uint8_t reserved2[190];
+	char reserved2[190];
+} PACKED;
+
+struct vbe_crtc_info {
+	uint16_t htotal, hsync_start, hsync_end;
+	uint16_t vtotal, vsync_start, vsync_end;
+	uint8_t flags;
+	uint32_t pixel_clock;
+	uint16_t rate_centihz;	/* refresh rate in 1/100 hz (pck / (htotal * vtotal)) */
+	char reserved[40];
 } PACKED;
 #pragma pack (pop)
 
+/* returned by vbe_scanline_info() */
+struct vbe_scanline_info {
+	int size;
+	int num_pixels;
+	int max_scanlines;
+};
+
 enum {
 	VBE_8BIT_DAC	= 0x01,
 	VBE_NON_VGA		= 0x02,
@@ -95,7 +111,7 @@ enum {
 	VBE_ATTR_NOTVGA		= 0x0020,
 	VBE_ATTR_BANKED		= 0x0040,
 	VBE_ATTR_LFB		= 0x0080,
-	VBE_ATTR_2XSCAN		= 0x0100,
+	VBE_ATTR_DBLSCAN	= 0x0100,
 	/* VBE 3.0 */
 	VBE_ATTR_ILACE		= 0x0200,	/* ! */
 	VBE_ATTR_TRIPLEBUF	= 0x0400,
@@ -132,6 +148,68 @@ enum {
 	VBE_MODE_PRESERVE	= 0x8000
 };
 
+/* standard mode numbers */
+enum {
+	VBE_640X400_8BPP	= 0x100,
+	VBE_640X480_8BPP	= 0x101,
+	VBE_800X600_4BPP	= 0x102,
+	VBE_800X600_8BPP	= 0x103,
+	VBE_1024X768_4BPP	= 0x104,
+	VBE_1024X768_8BPP	= 0x105,
+	VBE_1280X1024_4BPP	= 0x106,
+	VBE_1280X1024_8BPP	= 0x107,
+	VBE_80X60_TEXT		= 0x108,
+	VBE_132X25_TEXT		= 0x109,
+	VBE_132X43_TEXT		= 0x10a,
+	VBE_132X50_TEXT		= 0x10b,
+	VBE_132X60_TEXT		= 0x10c,
+	/* VBE 1.2 */
+	VBE_320X200_15BPP	= 0x10d,
+	VBE_320X200_16BPP	= 0x10e,
+	VBE_320X200_24BPP	= 0x10f,
+	VBE_640X480_15BPP	= 0x110,
+	VBE_640X480_16BPP	= 0x111,
+	VBE_640X480_24BPP	= 0x112,
+	VBE_800X600_15BPP	= 0x113,
+	VBE_800X600_16BPP	= 0x114,
+	VBE_800X600_24BPP	= 0x115,
+	VBE_1024X768_15BPP	= 0x116,
+	VBE_1024X768_16BPP	= 0x117,
+	VBE_1024X768_24BPP	= 0x118,
+	VBE_1280X1024_15BPP	= 0x119,
+	VBE_1280X1024_16BPP	= 0x11a,
+	VBE_1280X1024_24BPP	= 0x11b,
+	/* VBE 2.0 */
+	VBE_1600X1200_8BPP	= 0x120,
+	VBE_1600X1200_15BPP	= 0x121,
+	VBE_1600X1200_16BPP	= 0x122,
+
+	VBE_VMEM_MODE		= 0x81ff
+};
+
+/* VBE CRTC flags (vbe_crtc_info.flags) */
+enum {
+	VBE_CRTC_DBLSCAN	= 0x01,
+	VBE_CRTC_ILACE		= 0x02,
+	VBE_CRTC_HSYNC_NEG	= 0x04,
+	VBE_CRTC_VSYNC_NEG	= 0x08
+};
+
+enum {
+	VBE_STATE_CTRLHW	= 0x01,
+	VBE_STATE_BIOS		= 0x02,
+	VBE_STATE_DAC		= 0x04,
+	VBE_STATE_REGS		= 0x08,
+
+	VBE_STATE_ALL		= 0xffff
+};
+
+enum {
+	VBE_SWAP_NOW,
+	VBE_SWAP_VBLANK,
+	VBE_SWAP_ASYNC	/* schedule swap and return (triple-buffering) */
+};
+
 int vbe_info(struct vbe_info *info);
 int vbe_num_modes(struct vbe_info *info);
 int vbe_mode_info(int mode, struct vbe_mode_info *minf);
@@ -139,4 +217,26 @@ int vbe_mode_info(int mode, struct vbe_mode_info *minf);
 void vbe_print_info(FILE *fp, struct vbe_info *info);
 void vbe_print_mode_info(FILE *fp, struct vbe_mode_info *minf);
 
+int vbe_setmode(uint16_t mode);
+int vbe_setmode_crtc(uint16_t mode, struct vbe_crtc_info *crtc);
+int vbe_getmode(void);
+
+int vbe_state_size(unsigned int flags);
+int vbe_save(void *stbuf, int sz, unsigned int flags);
+int vbe_restore(void *stbuf, int sz, unsigned int flags);
+
+int vbe_setwin(int wid, int pos);
+int vbe_getwin(int wid);
+
+/* returns the actual length in pixels, which might not be what was requested */
+int vbe_setscanlen(int len_pix);
+int vbe_getscanlen(void);
+int vbe_getpitch(void);
+int vbe_scanline_info(struct vbe_scanline_info *sinf);
+
+int vbe_setdisp(int x, int y, int when);
+int vbe_swap(uint32_t voffs, int when);
+int vbe_swap_pending(void);	/* 0: not pending (done) or error, 1: pending swap */
+/* TODO add stereo swap */
+
 #endif	/* VBE_H_ */