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/* |
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* video.h - Video/graphics emulation |
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* |
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* SheepShaver (C) 1997-2002 Marc Hellwig and Christian Bauer |
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* SheepShaver (C) 1997-2004 Marc Hellwig and Christian Bauer |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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extern bool VideoActivated(void); |
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extern bool VideoSnapshot(int xsize, int ysize, uint8 *p); |
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extern int16 VideoDoDriverIO(void *spaceID, void *commandID, void *commandContents, uint32 commandCode, uint32 commandKind); |
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extern int16 VideoDoDriverIO(uint32 spaceID, uint32 commandID, uint32 commandContents, uint32 commandCode, uint32 commandKind); |
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// System specific and internal functions/data |
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struct VideoInfo { |
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APPLE_32_BIT |
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}; |
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// 1, 2, 4 and 8 bit depths use a color palette |
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inline bool IsDirectMode(int mode) |
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{ |
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return mode == APPLE_16_BIT || mode == APPLE_32_BIT; |
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} |
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// Return the depth code that corresponds to the specified bits-per-pixel value |
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inline int DepthModeForPixelDepth(int depth) |
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{ |
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switch (depth) { |
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case 1: return APPLE_1_BIT; |
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case 2: return APPLE_2_BIT; |
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case 4: return APPLE_4_BIT; |
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case 8: return APPLE_8_BIT; |
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case 15: case 16: return APPLE_16_BIT; |
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case 24: case 32: return APPLE_32_BIT; |
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default: return APPLE_1_BIT; |
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} |
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} |
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// Return a bytes-per-row value (assuming no padding) for the specified depth and pixel width |
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inline uint32 TrivialBytesPerRow(uint32 width, int mode) |
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{ |
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switch (mode) { |
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case APPLE_1_BIT: return width / 8; |
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case APPLE_2_BIT: return width / 4; |
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case APPLE_4_BIT: return width / 2; |
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case APPLE_8_BIT: return width; |
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case APPLE_16_BIT: return width * 2; |
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case APPLE_32_BIT: return width * 4; |
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default: return width; |
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} |
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} |
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enum { // viAppleID |
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APPLE_640x480 = 0x81, |
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APPLE_W_640x480, |
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APPLE_800x600, |
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APPLE_W_800x600, |
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APPLE_1024x768, |
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APPLE_1152x768, |
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APPLE_1152x900, |
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APPLE_1280x1024, |
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APPLE_1600x1200, |
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extern uint8 remap_mac_be[256]; |
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extern uint8 MacCursor[68]; |
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struct GammaTbl; |
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struct VidLocals{ |
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uint16 saveMode; |
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uint32 saveData; |
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uint16 savePage; |
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uint32 saveBaseAddr; |
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GammaTbl *gammaTable; // Current gamma table |
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uint32 gammaTable; // Mac address of gamma tble |
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uint32 maxGammaTableSize; // Biggest gamma table allocated |
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uint32 saveVidParms; |
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bool luminanceMapping; // Luminance mapping on/off |
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extern void video_set_palette(void); |
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extern void video_set_cursor(void); |
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extern bool video_can_change_cursor(void); |
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extern int16 video_mode_change(VidLocals *csSave, uint32 ParamPtr); |
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extern int16 VSLDoInterruptService(uint32 arg1); |
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extern void NQDMisc(uint32 arg1, void *arg2); |
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extern void NQDMisc(uint32 arg1, uintptr arg2); |
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// Native QuickDraw acceleration callbacks |
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extern bool NQD_sync_hook(uint32); |
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extern bool NQD_bitblt_hook(uint32); |
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extern bool NQD_fillrect_hook(uint32); |
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extern void NQD_bitblt(uint32); |
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extern void NQD_invrect(uint32); |
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extern void NQD_fillrect(uint32); |
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extern bool keyfile_valid; |
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