screen.h 3.8 KB

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  1. typedef struct Cursor Cursor;
  2. typedef struct Cursorinfo Cursorinfo;
  3. struct Cursorinfo {
  4. Cursor;
  5. Lock;
  6. };
  7. /* devmouse.c */
  8. extern void mousetrack(int, int, int, int);
  9. extern Point mousexy(void);
  10. extern void mouseaccelerate(int);
  11. extern int m3mouseputc(Queue*, int);
  12. extern int m5mouseputc(Queue*, int);
  13. extern int mouseputc(Queue*, int);
  14. extern Cursorinfo cursor;
  15. extern Cursor arrow;
  16. /*
  17. * Generic VGA registers.
  18. */
  19. enum {
  20. MiscW = 0x03C2, /* Miscellaneous Output (W) */
  21. MiscR = 0x03CC, /* Miscellaneous Output (R) */
  22. Status0 = 0x03C2, /* Input status 0 (R) */
  23. Status1 = 0x03DA, /* Input Status 1 (R) */
  24. FeatureR = 0x03CA, /* Feature Control (R) */
  25. FeatureW = 0x03DA, /* Feature Control (W) */
  26. Seqx = 0x03C4, /* Sequencer Index, Data at Seqx+1 */
  27. Crtx = 0x03D4, /* CRT Controller Index, Data at Crtx+1 */
  28. Grx = 0x03CE, /* Graphics Controller Index, Data at Grx+1 */
  29. Attrx = 0x03C0, /* Attribute Controller Index and Data */
  30. PaddrW = 0x03C8, /* Palette Address Register, write */
  31. Pdata = 0x03C9, /* Palette Data Register */
  32. Pixmask = 0x03C6, /* Pixel Mask Register */
  33. PaddrR = 0x03C7, /* Palette Address Register, read */
  34. Pstatus = 0x03C7, /* DAC Status (RO) */
  35. Pcolours = 256, /* Palette */
  36. Pred = 0,
  37. Pgreen = 1,
  38. Pblue = 2,
  39. Pblack = 0x00,
  40. Pwhite = 0xFF,
  41. };
  42. #define VGAMEM() PADDR(arch->pcimem(0xA0000, 1<<16))
  43. #define vgai(port) inb(port)
  44. #define vgao(port, data) outb(port, data)
  45. extern int vgaxi(long, uchar);
  46. extern int vgaxo(long, uchar, uchar);
  47. /*
  48. */
  49. typedef struct VGAdev VGAdev;
  50. typedef struct VGAcur VGAcur;
  51. typedef struct VGAscr VGAscr;
  52. struct VGAdev {
  53. char* name;
  54. void (*enable)(VGAscr*);
  55. void (*disable)(VGAscr*);
  56. void (*page)(VGAscr*, int);
  57. void (*linear)(VGAscr*, int, int);
  58. void (*drawinit)(VGAscr*);
  59. int (*fill)(VGAscr*, Rectangle, ulong);
  60. void (*flush)(VGAscr*, Rectangle);
  61. };
  62. struct VGAcur {
  63. char* name;
  64. void (*enable)(VGAscr*);
  65. void (*disable)(VGAscr*);
  66. void (*load)(VGAscr*, Cursor*);
  67. int (*move)(VGAscr*, Point);
  68. int doespanning;
  69. };
  70. /*
  71. */
  72. struct VGAscr {
  73. Lock devlock;
  74. VGAdev* dev;
  75. Pcidev* pci;
  76. VGAcur* cur;
  77. ulong storage;
  78. Cursor;
  79. int useflush;
  80. ulong paddr; /* frame buffer */
  81. void* vaddr;
  82. int apsize;
  83. ulong io; /* device specific registers */
  84. ulong *mmio;
  85. ulong colormap[Pcolours][3];
  86. int palettedepth;
  87. Memimage* gscreen;
  88. Memdata* gscreendata;
  89. Memsubfont* memdefont;
  90. int (*fill)(VGAscr*, Rectangle, ulong);
  91. int (*scroll)(VGAscr*, Rectangle, Rectangle);
  92. void (*blank)(VGAscr*, int);
  93. ulong id; /* internal identifier for driver use */
  94. };
  95. extern VGAscr vgascreen[];
  96. enum {
  97. Backgnd = 0, /* black */
  98. };
  99. /* mouse.c */
  100. extern void mousectl(Cmdbuf*);
  101. /* screen.c */
  102. extern int hwaccel; /* use hw acceleration; default on */
  103. extern int hwblank; /* use hw blanking; default on */
  104. extern void addvgaseg(char*, ulong, ulong);
  105. extern uchar* attachscreen(Rectangle*, ulong*, int*, int*, int*);
  106. extern void flushmemscreen(Rectangle);
  107. extern int cursoron(int);
  108. extern void cursoroff(int);
  109. extern void setcursor(Cursor*);
  110. extern int screensize(int, int, int, ulong);
  111. extern int screenaperture(int, int);
  112. extern Rectangle physgscreenr; /* actual monitor size */
  113. extern void blankscreen(int);
  114. extern VGAcur swcursor;
  115. extern void swcursorinit(void);
  116. extern void swcursorhide(void);
  117. extern void swcursoravoid(Rectangle);
  118. extern void swcursorunhide(void);
  119. /* devdraw.c */
  120. extern void deletescreenimage(void);
  121. extern int drawhasclients(void);
  122. extern ulong blanktime;
  123. extern QLock drawlock;
  124. /* vga.c */
  125. extern void vgascreenwin(VGAscr*);
  126. extern void vgaimageinit(ulong);
  127. extern void vgalinearpciid(VGAscr*, int, int);
  128. extern void vgalinearpci(VGAscr*);
  129. extern void vgalinearaddr(VGAscr*, ulong, int);
  130. extern void drawblankscreen(int);
  131. extern void vgablank(VGAscr*, int);
  132. extern Lock vgascreenlock;
  133. #define ishwimage(i) ((i)->data->bdata == vgascreen[0].gscreendata)