| 1 |
/* |
| 2 |
* video.h - Video/graphics emulation |
| 3 |
* |
| 4 |
* SheepShaver (C) 1997-2004 Marc Hellwig and Christian Bauer |
| 5 |
* |
| 6 |
* This program is free software; you can redistribute it and/or modify |
| 7 |
* it under the terms of the GNU General Public License as published by |
| 8 |
* the Free Software Foundation; either version 2 of the License, or |
| 9 |
* (at your option) any later version. |
| 10 |
* |
| 11 |
* This program is distributed in the hope that it will be useful, |
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 |
* GNU General Public License for more details. |
| 15 |
* |
| 16 |
* You should have received a copy of the GNU General Public License |
| 17 |
* along with this program; if not, write to the Free Software |
| 18 |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 |
*/ |
| 20 |
|
| 21 |
#ifndef VIDEO_H |
| 22 |
#define VIDEO_H |
| 23 |
|
| 24 |
extern bool VideoActivated(void); |
| 25 |
extern bool VideoSnapshot(int xsize, int ysize, uint8 *p); |
| 26 |
|
| 27 |
extern int16 VideoDoDriverIO(void *spaceID, void *commandID, void *commandContents, uint32 commandCode, uint32 commandKind); |
| 28 |
|
| 29 |
// System specific and internal functions/data |
| 30 |
struct VideoInfo { |
| 31 |
int viType; // Screen/Window |
| 32 |
uint32 viRowBytes; // width of each row in memory |
| 33 |
uint16 viXsize,viYsize; // Window |
| 34 |
uint32 viAppleMode; // Screen Color Depth |
| 35 |
uint32 viAppleID; // Screen DisplayID |
| 36 |
}; |
| 37 |
|
| 38 |
extern struct VideoInfo VModes[]; // List of available video modes |
| 39 |
|
| 40 |
enum { // viAppleMode |
| 41 |
APPLE_1_BIT = 0x80, |
| 42 |
APPLE_2_BIT, |
| 43 |
APPLE_4_BIT, |
| 44 |
APPLE_8_BIT, |
| 45 |
APPLE_16_BIT, |
| 46 |
APPLE_32_BIT |
| 47 |
}; |
| 48 |
|
| 49 |
// 1, 2, 4 and 8 bit depths use a color palette |
| 50 |
inline bool IsDirectMode(int mode) |
| 51 |
{ |
| 52 |
return mode == APPLE_16_BIT || mode == APPLE_32_BIT; |
| 53 |
} |
| 54 |
|
| 55 |
// Return the depth code that corresponds to the specified bits-per-pixel value |
| 56 |
inline int DepthModeForPixelDepth(int depth) |
| 57 |
{ |
| 58 |
switch (depth) { |
| 59 |
case 1: return APPLE_1_BIT; |
| 60 |
case 2: return APPLE_2_BIT; |
| 61 |
case 4: return APPLE_4_BIT; |
| 62 |
case 8: return APPLE_8_BIT; |
| 63 |
case 15: case 16: return APPLE_16_BIT; |
| 64 |
case 24: case 32: return APPLE_32_BIT; |
| 65 |
default: return APPLE_1_BIT; |
| 66 |
} |
| 67 |
} |
| 68 |
|
| 69 |
// Return a bytes-per-row value (assuming no padding) for the specified depth and pixel width |
| 70 |
inline uint32 TrivialBytesPerRow(uint32 width, int mode) |
| 71 |
{ |
| 72 |
switch (mode) { |
| 73 |
case APPLE_1_BIT: return width / 8; |
| 74 |
case APPLE_2_BIT: return width / 4; |
| 75 |
case APPLE_4_BIT: return width / 2; |
| 76 |
case APPLE_8_BIT: return width; |
| 77 |
case APPLE_16_BIT: return width * 2; |
| 78 |
case APPLE_32_BIT: return width * 4; |
| 79 |
default: return width; |
| 80 |
} |
| 81 |
} |
| 82 |
|
| 83 |
enum { // viAppleID |
| 84 |
APPLE_640x480 = 0x81, |
| 85 |
APPLE_W_640x480, |
| 86 |
APPLE_800x600, |
| 87 |
APPLE_W_800x600, |
| 88 |
APPLE_1024x768, |
| 89 |
APPLE_1152x768, |
| 90 |
APPLE_1152x900, |
| 91 |
APPLE_1280x1024, |
| 92 |
APPLE_1600x1200, |
| 93 |
APPLE_ID_MIN = APPLE_640x480, |
| 94 |
APPLE_ID_MAX = APPLE_1600x1200 |
| 95 |
}; |
| 96 |
|
| 97 |
enum { // Display type |
| 98 |
DIS_INVALID, |
| 99 |
DIS_SCREEN, |
| 100 |
DIS_WINDOW |
| 101 |
}; |
| 102 |
|
| 103 |
extern bool video_activated; // Flag: video display activated, mouse and keyboard data valid |
| 104 |
extern uint32 screen_base; // Frame buffer base address |
| 105 |
extern int cur_mode; // Number of current video mode (index in VModes array) |
| 106 |
extern int display_type; // Current display type (see above) |
| 107 |
extern rgb_color mac_pal[256]; |
| 108 |
extern uint8 remap_mac_be[256]; |
| 109 |
extern uint8 MacCursor[68]; |
| 110 |
|
| 111 |
struct GammaTbl; |
| 112 |
|
| 113 |
struct VidLocals{ |
| 114 |
uint16 saveMode; |
| 115 |
uint32 saveData; |
| 116 |
uint16 savePage; |
| 117 |
uint32 saveBaseAddr; |
| 118 |
GammaTbl *gammaTable; // Current gamma table |
| 119 |
uint32 maxGammaTableSize; // Biggest gamma table allocated |
| 120 |
uint32 saveVidParms; |
| 121 |
bool luminanceMapping; // Luminance mapping on/off |
| 122 |
int32 cursorX; // Hardware cursor state. Unused, but must be remembered |
| 123 |
int32 cursorY; |
| 124 |
uint32 cursorVisible; |
| 125 |
uint32 cursorSet; |
| 126 |
uint32 vslServiceID; // VSL interrupt service ID |
| 127 |
bool interruptsEnabled; // VBL interrupts on/off |
| 128 |
uint32 regEntryID[4]; |
| 129 |
}; |
| 130 |
|
| 131 |
extern VidLocals *private_data; // Pointer to driver local variables (there is only one display, so this is ok) |
| 132 |
|
| 133 |
extern bool VideoInit(void); |
| 134 |
extern void VideoExit(void); |
| 135 |
extern void VideoVBL(void); |
| 136 |
extern void VideoInstallAccel(void); |
| 137 |
extern void VideoQuitFullScreen(void); |
| 138 |
|
| 139 |
extern void video_set_palette(void); |
| 140 |
extern void video_set_cursor(void); |
| 141 |
extern int16 video_mode_change(VidLocals *csSave, uint32 ParamPtr); |
| 142 |
|
| 143 |
extern int16 VSLDoInterruptService(uint32 arg1); |
| 144 |
extern void NQDMisc(uint32 arg1, void *arg2); |
| 145 |
|
| 146 |
// Native QuickDraw acceleration callbacks |
| 147 |
extern bool NQD_sync_hook(uint32); |
| 148 |
extern bool NQD_bitblt_hook(uint32); |
| 149 |
//extern bool NQD_fillrect_hook(uint32); |
| 150 |
extern void NQD_bitblt(uint32); |
| 151 |
//extern void NQD_invrect(uint32); |
| 152 |
//extern void NQD_fillrect8(uint32); |
| 153 |
//extern void NQD_fillrect32(uint32); |
| 154 |
|
| 155 |
extern bool keyfile_valid; |
| 156 |
|
| 157 |
#endif |
