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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 54 | pj | 1 | /* Written by Michael Weller and Harm Hanemaayer. */ |
| 2 | |||
| 3 | |||
| 4 | #include <stdarg.h> |
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| 5 | #include "vga.h" |
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| 6 | #include "driver.h" |
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| 7 | #include "timing.h" |
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| 8 | #include "accel.h" |
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| 9 | |||
| 10 | |||
| 11 | /* |
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| 12 | * This calls one of the acceleration interface functions. |
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| 13 | */ |
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| 14 | |||
| 15 | int vga_accel(unsigned operation,...) |
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| 16 | { |
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| 17 | va_list params; |
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| 18 | |||
| 19 | va_start(params, operation); |
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| 20 | /* This is the fast interface which I thought of first: */ |
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| 21 | if (__svgalib_driverspecs->accel) { |
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| 22 | int retval; |
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| 23 | |||
| 24 | retval = (*(__svgalib_driverspecs->accel))(operation, params); |
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| 25 | va_end(params); |
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| 26 | return retval; |
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| 27 | } |
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| 28 | |||
| 29 | /* Do a quick availability check to avoid disasters. */ |
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| 30 | if (__svgalib_driverspecs->accelspecs == 0) |
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| 31 | return -1; |
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| 32 | /* Check for operation availability flag. */ |
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| 33 | if (!(__svgalib_driverspecs->accelspecs->operations & (1 << (operation - 1)))) |
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| 34 | return -1; |
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| 35 | |||
| 36 | vga_lockvc(); |
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| 37 | |||
| 38 | /* |
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| 39 | * gcc doesn't produce glorious code here, it's much better with |
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| 40 | * only one va_arg traversal in a function. |
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| 41 | */ |
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| 42 | |||
| 43 | switch (operation) { |
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| 44 | case ACCEL_FILLBOX: |
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| 45 | { |
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| 46 | int x, y, w, h; |
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| 47 | x = va_arg(params, int); |
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| 48 | y = va_arg(params, int); |
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| 49 | w = va_arg(params, int); |
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| 50 | h = va_arg(params, int); |
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| 51 | (*__svgalib_driverspecs->accelspecs->FillBox) (x, y, w, h); |
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| 52 | break; |
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| 53 | } |
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| 54 | case ACCEL_SCREENCOPY: |
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| 55 | { |
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| 56 | int x1, y1, x2, y2, w, h; |
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| 57 | x1 = va_arg(params, int); |
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| 58 | y1 = va_arg(params, int); |
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| 59 | x2 = va_arg(params, int); |
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| 60 | y2 = va_arg(params, int); |
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| 61 | w = va_arg(params, int); |
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| 62 | h = va_arg(params, int); |
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| 63 | (*__svgalib_driverspecs->accelspecs->ScreenCopy) (x1, y1, x2, y2, w, h); |
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| 64 | break; |
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| 65 | } |
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| 66 | case ACCEL_PUTIMAGE: |
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| 67 | { |
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| 68 | int x, y, w, h; |
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| 69 | void *p; |
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| 70 | x = va_arg(params, int); |
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| 71 | y = va_arg(params, int); |
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| 72 | w = va_arg(params, int); |
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| 73 | h = va_arg(params, int); |
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| 74 | p = va_arg(params, void *); |
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| 75 | (*__svgalib_driverspecs->accelspecs->PutImage) (x, y, w, h, p); |
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| 76 | break; |
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| 77 | } |
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| 78 | case ACCEL_DRAWLINE: |
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| 79 | { |
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| 80 | int x1, x2, y1, y2; |
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| 81 | x1 = va_arg(params, int); |
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| 82 | y1 = va_arg(params, int); |
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| 83 | x2 = va_arg(params, int); |
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| 84 | y2 = va_arg(params, int); |
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| 85 | (*__svgalib_driverspecs->accelspecs->DrawLine) (x1, y1, x2, y2); |
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| 86 | break; |
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| 87 | } |
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| 88 | case ACCEL_SETFGCOLOR: |
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| 89 | { |
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| 90 | int c; |
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| 91 | c = va_arg(params, int); |
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| 92 | (*__svgalib_driverspecs->accelspecs->SetFGColor) (c); |
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| 93 | break; |
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| 94 | } |
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| 95 | case ACCEL_SETBGCOLOR: |
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| 96 | { |
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| 97 | int c; |
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| 98 | c = va_arg(params, int); |
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| 99 | (__svgalib_driverspecs->accelspecs->SetBGColor) (c); |
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| 100 | break; |
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| 101 | } |
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| 102 | case ACCEL_SETTRANSPARENCY: |
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| 103 | { |
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| 104 | int m, c; |
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| 105 | m = va_arg(params, int); |
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| 106 | c = va_arg(params, int); |
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| 107 | (*__svgalib_driverspecs->accelspecs->SetTransparency) (m, c); |
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| 108 | break; |
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| 109 | } |
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| 110 | case ACCEL_SETRASTEROP: |
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| 111 | { |
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| 112 | int r; |
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| 113 | r = va_arg(params, int); |
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| 114 | (*__svgalib_driverspecs->accelspecs->SetRasterOp) (r); |
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| 115 | break; |
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| 116 | } |
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| 117 | case ACCEL_PUTBITMAP: |
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| 118 | { |
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| 119 | int x, y, w, h; |
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| 120 | void *p; |
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| 121 | x = va_arg(params, int); |
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| 122 | y = va_arg(params, int); |
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| 123 | w = va_arg(params, int); |
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| 124 | h = va_arg(params, int); |
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| 125 | p = va_arg(params, void *); |
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| 126 | (*__svgalib_driverspecs->accelspecs->PutBitmap) (x, y, w, h, p); |
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| 127 | break; |
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| 128 | } |
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| 129 | case ACCEL_SCREENCOPYBITMAP: |
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| 130 | { |
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| 131 | int x1, y1, x2, y2, w, h; |
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| 132 | x1 = va_arg(params, int); |
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| 133 | y1 = va_arg(params, int); |
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| 134 | x2 = va_arg(params, int); |
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| 135 | y2 = va_arg(params, int); |
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| 136 | w = va_arg(params, int); |
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| 137 | h = va_arg(params, int); |
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| 138 | (*__svgalib_driverspecs->accelspecs->ScreenCopyBitmap) (x1, y1, x2, y2, w, h); |
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| 139 | break; |
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| 140 | } |
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| 141 | case ACCEL_DRAWHLINELIST: |
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| 142 | { |
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| 143 | int y, n, *x1, *x2; |
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| 144 | y = va_arg(params, int); |
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| 145 | n = va_arg(params, int); |
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| 146 | x1 = va_arg(params, int *); |
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| 147 | x2 = va_arg(params, int *); |
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| 148 | (*__svgalib_driverspecs->accelspecs->DrawHLineList) (y, n, x1, x2); |
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| 149 | break; |
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| 150 | } |
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| 151 | case ACCEL_SETMODE: |
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| 152 | { |
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| 153 | int m; |
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| 154 | /* This isn't sent to the chipset-specific driver. */ |
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| 155 | m = va_arg(params, int); |
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| 156 | if ((__svgalib_accel_mode & BLITS_IN_BACKGROUND) |
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| 157 | && !(m & BLITS_IN_BACKGROUND)) |
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| 158 | /* Make sure background blits are finished. */ |
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| 159 | (*__svgalib_driverspecs->accelspecs->Sync) (); |
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| 160 | __svgalib_accel_mode = m; |
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| 161 | break; |
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| 162 | } |
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| 163 | case ACCEL_SYNC: |
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| 164 | (*__svgalib_driverspecs->accelspecs->Sync) (); |
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| 165 | break; |
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| 166 | } /* switch */ |
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| 167 | |||
| 168 | va_end(params); |
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| 169 | |||
| 170 | vga_unlockvc(); |
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| 171 | |||
| 172 | return 0; |
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| 173 | } |