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root/cebix/SheepShaver/src/include/video.h
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Comparing SheepShaver/src/include/video.h (file contents):
Revision 1.1.1.1 by cebix, 2002-02-04T16:58:13Z vs.
Revision 1.4 by gbeauche, 2004-04-13T22:22:22Z

# Line 1 | Line 1
1   /*
2   *  video.h - Video/graphics emulation
3   *
4 < *  SheepShaver (C) 1997-2002 Marc Hellwig and Christian Bauer
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
# Line 46 | Line 46 | enum { // viAppleMode
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,

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