more vbe

[dosdemo] / src / dos / vbe.h

diff --git a/src/dos/vbe.h b/src/dos/vbe.h
index 734f94d..84044e3 100644 (file)
--- 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_ */