![[BACK]](/cvsweb/icons/back.gif){kind=icon}
Return to screen.h CVS log ![[TXT]](/cvsweb/icons/text.gif){kind=icon}
![[DIR]](/cvsweb/icons/dir.gif){kind=icon}
Up to [HATARI the Atari ST Emulator] / hatari / src / includes|
Return to screen.h CVS log | Up to [HATARI the Atari ST Emulator] / hatari / src / includes |
1.1 root 1: /*
1.1.1.5 root 2: Hatari - screen.h
3:
4: This file is distributed under the GNU Public License, version 2 or at your
5: option any later version. Read the file gpl.txt for details.
1.1 root 6: */
7:
1.1.1.5 root 8: #ifndef HATARI_SCREEN_H
9: #define HATARI_SCREEN_H
1.1.1.3 root 10:
11: #include <SDL_video.h> /* for SDL_Surface */
12:
1.1 root 13:
14: /* Frame buffer, used to store details in screen conversion */
1.1.1.5 root 15: typedef struct
16: {
1.1 root 17: unsigned short int HBLPalettes[(NUM_VISIBLE_LINES+1)*16]; /* 1x16 colour palette per screen line, +1 line as may write after line 200 */
18: unsigned long HBLPaletteMasks[NUM_VISIBLE_LINES+1]; /* Bit mask of palette colours changes, top bit set is resolution change */
19: unsigned char *pSTScreen; /* Copy of screen built up during frame(copy each line on HBL to simulate monitor raster) */
20: unsigned char *pSTScreenCopy; /* Previous frames copy of above */
21: int OverscanModeCopy; /* Previous screen overscan mode */
22: BOOL bFullUpdate; /* Set TRUE to cause full update on next draw */
23: } FRAMEBUFFER;
1.1.1.5 root 24:
1.1.1.6 root 25: /* Number of frame buffers (1 or 2) - should be 2 for supporting screen flipping */
26: #define NUM_FRAMEBUFFERS 2
1.1 root 27:
28: /* Details for each display screen - both Window and FullScreen */
1.1.1.5 root 29: typedef struct
30: {
1.1 root 31: int STScreenLeftSkipBytes,STScreenWidthBytes; /* Bytes to skip on left and number of bytes of screen to draw */
32: int STScreenStartHorizLine,STScreenEndHorizLine; /* Start/End points in ST screen(28 is top of normal screen) */
33: int PCStartHorizLine,PCStartXOffset; /* Source ST lines/bytes to skip, Destination screen lines/bytes to skip */
34: } SCREENDRAW_OVERSCAN;
35:
1.1.1.5 root 36: typedef struct
37: {
1.1 root 38: void *pDrawFunction; /* Draw function */
39: int Width,Height,BitDepth,VertPixelsPerLine;
40: SCREENDRAW_OVERSCAN Overscan[4]; /* Details for starting offset for each overscan mode(none,top,bottom,both) */
41: } SCREENDRAW;
42:
1.1.1.5 root 43: typedef struct
44: {
1.1.1.7 ! root 45: SCREENDRAW *pLowRes;
! 46: SCREENDRAW *pMediumRes;
! 47: SCREENDRAW *pHighRes;
! 48: SCREENDRAW *pLowMediumMixRes;
1.1 root 49: } SCREENDRAW_DISPLAYOPTIONS;
50:
51: /* ST Resolution defines */
1.1.1.5 root 52: enum
53: {
1.1 root 54: ST_LOW_RES,
55: ST_MEDIUM_RES,
56: ST_HIGH_RES,
57: ST_LOWMEDIUM_MIX_RES
58: };
59:
60: /* Update Palette defines */
1.1.1.5 root 61: enum
62: {
1.1 root 63: UPDATE_PALETTE_NONE,
64: UPDATE_PALETTE_UPDATE,
65: UPDATE_PALETTE_FULLUPDATE
66: };
67:
68: /* Palette mask values for 'HBLPaletteMask[]' */
69: #define PALETTEMASK_RESOLUTION 0x00040000
1.1.1.2 root 70: #define PALETTEMASK_PALETTE 0x0000ffff
71: #define PALETTEMASK_UPDATERES 0x20000000
72: #define PALETTEMASK_UPDATEPAL 0x40000000
1.1 root 73: #define PALETTEMASK_UPDATEFULL 0x80000000
74: #define PALETTEMASK_UPDATEMASK (PALETTEMASK_UPDATEFULL|PALETTEMASK_UPDATEPAL|PALETTEMASK_UPDATERES)
75:
76: /* Overscan values */
1.1.1.5 root 77: enum
78: {
1.1.1.2 root 79: OVERSCANMODE_NONE, /* 0x00 */
80: OVERSCANMODE_TOP, /* 0x01 */
81: OVERSCANMODE_BOTTOM /* 0x02 (Top+Bottom) 0x03 */
1.1 root 82: };
83:
1.1.1.2 root 84: /* Available fullscreen modes */
85: #define NUM_DISPLAYMODEOPTIONS 6
1.1.1.5 root 86: enum
87: {
1.1.1.7 ! root 88: DISPLAYMODE_LOWCOL_LOWRES, /* low color, low resolution (fastest) */
! 89: DISPLAYMODE_LOWCOL_HIGHRES, /* low color, zoomed resolution */
! 90: DISPLAYMODE_LOWCOL_DUMMY, /* unused */
! 91: DISPLAYMODE_HICOL_LOWRES, /* high color, low resolution */
! 92: DISPLAYMODE_HICOL_HIGHRES, /* high color, zoomed resolution (slowest) */
! 93: DISPLAYMODE_HICOL_DUMMY /* unused */
1.1.1.2 root 94: };
95:
96:
1.1 root 97: /* For palette we don't go from colour '0' as the whole background would change, so go from this value */
98: #define BASECOLOUR 0x0A
99: #define BASECOLOUR_LONG 0x0A0A0A0A
100:
101: extern FRAMEBUFFER *pFrameBuffer;
102: extern unsigned char *pSTScreen,*pSTScreenCopy;
103: extern unsigned char *pPCScreenDest;
104: extern int STScreenStartHorizLine,STScreenEndHorizLine;
105: extern int PCScreenBytesPerLine,STScreenWidthBytes,STScreenLeftSkipBytes;
106: extern BOOL bInFullScreen;
107: extern BOOL bScreenContentsChanged;
108: extern int STRes,PrevSTRes;
109: extern int STScreenLineOffset[NUM_VISIBLE_LINES];
110: extern unsigned long STRGBPalette[16];
111: extern unsigned long ST2RGB[2048];
1.1.1.3 root 112: extern SDL_Surface *sdlscrn;
1.1.1.4 root 113: extern BOOL bGrabMouse;
1.1 root 114:
115: extern void Screen_Init(void);
116: extern void Screen_UnInit(void);
117: extern void Screen_Reset(void);
118: extern void Screen_SetScreenLineOffsets(void);
119: extern void Screen_SetFullUpdate(void);
1.1.1.4 root 120: extern void Screen_SetupRGBTable(void);
1.1 root 121: extern void Screen_EnterFullScreen(void);
122: extern void Screen_ReturnFromFullScreen(void);
1.1.1.2 root 123: extern void Screen_ClearScreen(void);
1.1 root 124: extern void Screen_SetDrawModes(void);
1.1.1.6 root 125: extern void Screen_DidResolutionChange(void);
1.1.1.4 root 126: extern void Screen_Handle8BitPalettes(void);
1.1 root 127: extern void Screen_Blit(BOOL bSwapScreen);
128: extern void Screen_DrawFrame(BOOL bForceFlip);
129: extern void Screen_Draw(void);
1.1.1.3 root 130:
1.1.1.5 root 131: #endif /* ifndef HATARI_SCREEN_H */
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.