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/* |
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* video_blit.cpp - Video/graphics emulation, blitters |
3 |
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* |
4 |
< |
* Basilisk II (C) 1997-2001 Christian Bauer |
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* Basilisk II (C) 1997-2005 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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#include "sysdeps.h" |
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#include "video.h" |
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#include "video_blit.h" |
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#include <stdio.h> |
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#include <stdlib.h> |
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#include <X11/Xlib.h> |
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#include <X11/Xutil.h> |
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|
29 |
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#ifdef ENABLE_VOSF |
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// Format of the target visual |
31 |
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struct VisualFormat { |
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int depth; // Screen depth |
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uint32 Rmask, Gmask, Bmask; // RGB mask values |
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uint32 Rshift, Gshift, Bshift; // RGB shift values |
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}; |
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static VisualFormat visualFormat; |
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// This holds the pixels values of the palette colors for 8->16/32-bit expansion |
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uint32 ExpandMap[256]; |
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// Mark video_blit.h for specialization |
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#define DEFINE_VIDEO_BLITTERS 1 |
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|
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/* -------------------------------------------------------------------------- */ |
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/* --- Raw Copy / No conversion required --- */ |
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/* -------------------------------------------------------------------------- */ |
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#define FB_BLIT_2(dst, src) \ |
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(dst = (((src) >> 8) & 0x00ff00ff) | (((src) & 0x00ff00ff) << 8)) |
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|
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#define FB_BLIT_4(dst, src) \ |
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(dst = (((src) >> 8) & UVAL64(0x00ff00ff00ff00ff)) | \ |
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(((src) & UVAL64(0x00ff00ff00ff00ff)) << 8)) |
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|
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#define FB_DEPTH 15 |
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#include "video_blit.h" |
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#define FB_BLIT_2(dst, src) \ |
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(dst = (((src) >> 10) & 0x001f001f) | ((src) & 0x03e003e0) | (((src) << 10) & 0x7c007c00)) |
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|
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#define FB_BLIT_4(dst, src) \ |
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(dst = (((src) >> 10) & UVAL64(0x001f001f001f001f)) | \ |
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( (src) & UVAL64(0x03e003e003e003e0)) | \ |
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(((src) << 10) & UVAL64(0x7c007c007c007c00))) |
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|
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#define FB_DEPTH 15 |
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#define FB_FUNC_NAME Blit_BGR555_NBO |
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#include "video_blit.h" |
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#define FB_BLIT_2(dst, src) \ |
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(dst = (((src) >> 2) & 0x1f001f00) | (((src) >> 8) & 0x30003) | (((src) << 8) & 0xe000e000) | (((src) << 2) & 0x7c007c)) |
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|
101 |
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#define FB_BLIT_4(dst, src) \ |
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(dst = (((src) >> 2) & UVAL64(0x1f001f001f001f00)) | \ |
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(((src) >> 8) & UVAL64(0x0003000300030003)) | \ |
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(((src) << 8) & UVAL64(0xe000e000e000e000)) | \ |
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(((src) << 2) & UVAL64(0x007c007c007c007c))) |
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|
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#define FB_DEPTH 15 |
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#define FB_FUNC_NAME Blit_BGR555_OBO |
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#include "video_blit.h" |
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#define FB_BLIT_2(dst, src) \ |
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(dst = (((src) >> 2) & 0x1f001f) | (((src) >> 8) & 0xe000e0) | (((src) << 8) & 0x03000300) | (((src) << 2) & 0x7c007c00)) |
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|
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#define FB_BLIT_4(dst, src) \ |
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(dst = (((src) >> 2) & UVAL64(0x001f001f001f001f)) | \ |
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(((src) >> 8) & UVAL64(0x00e000e000e000e0)) | \ |
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(((src) << 8) & UVAL64(0x0300030003000300)) | \ |
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(((src) << 2) & UVAL64(0x7c007c007c007c00))) |
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|
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#define FB_DEPTH 15 |
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#define FB_FUNC_NAME Blit_BGR555_NBO |
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#include "video_blit.h" |
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#define FB_BLIT_2(dst, src) \ |
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(dst = (((src) << 6) & 0x1f001f00) | ((src) & 0xe003e003) | (((src) >> 6) & 0x7c007c)) |
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|
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#define FB_BLIT_4(dst, src) \ |
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(dst = (((src) << 6) & UVAL64(0x1f001f001f001f00)) | \ |
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( (src) & UVAL64(0xe003e003e003e003)) | \ |
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(((src) >> 6) & UVAL64(0x007c007c007c007c))) |
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|
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#define FB_DEPTH 15 |
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#define FB_FUNC_NAME Blit_BGR555_OBO |
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#include "video_blit.h" |
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#define FB_BLIT_2(dst, src) \ |
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(dst = (((src) & 0x001f001f) | (((src) << 1) & 0xffc0ffc0))) |
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#define FB_BLIT_4(dst, src) \ |
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(dst = (((src) & UVAL64(0x001f001f001f001f)) | \ |
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(((src) << 1) & UVAL64(0xffc0ffc0ffc0ffc0)))) |
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|
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#define FB_DEPTH 16 |
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#define FB_FUNC_NAME Blit_RGB565_NBO |
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#include "video_blit.h" |
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#define FB_BLIT_2(dst, src) \ |
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(dst = ((((src) >> 7) & 0x00ff00ff) | (((src) << 9) & 0xc000c000) | (((src) << 8) & 0x1f001f00))) |
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|
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#define FB_BLIT_4(dst, src) \ |
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(dst = (((src) >> 7) & UVAL64(0x00ff00ff00ff00ff)) | \ |
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(((src) << 9) & UVAL64(0xc000c000c000c000)) | \ |
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(((src) << 8) & UVAL64(0x1f001f001f001f00))) |
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|
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#define FB_DEPTH 16 |
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#define FB_FUNC_NAME Blit_RGB565_OBO |
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#include "video_blit.h" |
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#define FB_BLIT_1(dst, src) \ |
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(dst = (((src) >> 8) & 0x001f) | (((src) << 9) & 0xfe00) | (((src) >> 7) & 0x01c0)) |
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// gb-- Disabled because I don't see any improvement |
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#if 0 && defined(__i386__) && defined(X86_ASSEMBLY) |
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|
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#define FB_BLIT_2(dst, src) \ |
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__asm__ ( "movl %0,%%ebx\n\t" \ |
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"movl %0,%%ebp\n\t" \ |
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"andl $0x1f001f00,%%ebx\n\t" \ |
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"andl $0x007f007f,%0\n\t" \ |
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"andl $0xe000e000,%%ebp\n\t" \ |
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"shrl $8,%%ebx\n\t" \ |
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"shrl $7,%%ebp\n\t" \ |
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"shll $9,%0\n\t" \ |
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"orl %%ebx,%%ebp\n\t" \ |
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"orl %%ebp,%0\n\t" \ |
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: "=r" (dst) : "0" (src) : "ebx", "ebp", "cc" ) |
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|
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#else |
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|
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#define FB_BLIT_2(dst, src) \ |
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(dst = (((src) >> 8) & 0x001f001f) | (((src) << 9) & 0xfe00fe00) | (((src) >> 7) & 0x01c001c0)) |
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|
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< |
#endif |
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> |
#define FB_BLIT_4(dst, src) \ |
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(dst = (((src) >> 8) & UVAL64(0x001f001f001f001f)) | \ |
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(((src) << 9) & UVAL64(0xfe00fe00fe00fe00)) | \ |
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(((src) >> 7) & UVAL64(0x01c001c001c001c0))) |
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#define FB_DEPTH 16 |
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#define FB_FUNC_NAME Blit_RGB565_NBO |
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#define FB_BLIT_2(dst, src) \ |
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(dst = (((src) & 0x1f001f00) | (((src) << 1) & 0xe0fee0fe) | (((src) >> 15) & 0x10001))) |
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|
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#define FB_BLIT_4(dst, src) \ |
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(dst = (((src) & UVAL64(0x1f001f001f001f00)) | \ |
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(((src) << 1) & UVAL64(0xe0fee0fee0fee0fe)) | \ |
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(((src) >> 15) & UVAL64(0x0001000100010001)))) |
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|
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#define FB_DEPTH 16 |
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#define FB_FUNC_NAME Blit_RGB565_OBO |
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#include "video_blit.h" |
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#define FB_BLIT_2(dst, src) \ |
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(dst = (((src) >> 24) & 0xff) | (((src) >> 8) & 0xff00) | (((src) & 0xff00) << 8) | (((src) & 0xff) << 24)) |
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|
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#define FB_BLIT_4(dst, src) \ |
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(dst = (((src) >> 24) & UVAL64(0x000000ff000000ff)) | \ |
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(((src) >> 8) & UVAL64(0x0000ff000000ff00)) | \ |
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(((src) & UVAL64(0x0000ff000000ff00)) << 8) | \ |
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(((src) & UVAL64(0x000000ff000000ff)) << 24)) |
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|
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#define FB_DEPTH 24 |
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#include "video_blit.h" |
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#define FB_BLIT_2(dst, src) \ |
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(dst = (((src) >> 16) & 0xff) | ((src) & 0xff00) | (((src) & 0xff) << 16)) |
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|
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#define FB_BLIT_4(dst, src) \ |
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(dst = (((src) >> 16) & UVAL64(0x000000ff000000ff)) | \ |
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( (src) & UVAL64(0x0000ff000000ff00)) | \ |
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(((src) & UVAL64(0x000000ff000000ff)) << 16)) |
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|
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#define FB_FUNC_NAME Blit_BGR888_NBO |
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#define FB_DEPTH 24 |
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#include "video_blit.h" |
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#define FB_BLIT_2(dst, src) \ |
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(dst = (((src) >> 16) & 0xff) | ((src) & 0xff0000) | (((src) & 0xff) << 16)) |
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|
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+ |
#define FB_BLIT_4(dst, src) \ |
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(dst = (((src) >> 16) & UVAL64(0x000000ff000000ff)) | \ |
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( (src) & UVAL64(0x00ff000000ff0000)) | \ |
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(((src) & UVAL64(0x000000ff000000ff)) << 16)) |
280 |
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|
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#define FB_FUNC_NAME Blit_BGR888_OBO |
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#define FB_DEPTH 24 |
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#include "video_blit.h" |
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#define FB_BLIT_2(dst, src) \ |
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(dst = ((src) & 0xff00ff) | (((src) & 0xff00) << 16)) |
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+ |
#define FB_BLIT_4(dst, src) \ |
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(dst = ((src) & UVAL64(0x00ff00ff00ff00ff)) | (((src) & UVAL64(0x0000ff000000ff00)) << 16)) |
300 |
+ |
|
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#define FB_DEPTH 24 |
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#include "video_blit.h" |
303 |
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/* -------------------------------------------------------------------------- */ |
305 |
< |
/* --- 2/4-bit indexed to 8-bit mode conversion --- */ |
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> |
/* --- 1/2/4-bit indexed to 8-bit mode conversion --- */ |
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/* -------------------------------------------------------------------------- */ |
307 |
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|
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+ |
static void Blit_Expand_1_To_8(uint8 * dest, const uint8 * p, uint32 length) |
309 |
+ |
{ |
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+ |
uint8 *q = (uint8 *)dest; |
311 |
+ |
for (uint32 i=0; i<length; i++) { |
312 |
+ |
uint8 c = *p++; |
313 |
+ |
*q++ = c >> 7; |
314 |
+ |
*q++ = (c >> 6) & 1; |
315 |
+ |
*q++ = (c >> 5) & 1; |
316 |
+ |
*q++ = (c >> 4) & 1; |
317 |
+ |
*q++ = (c >> 3) & 1; |
318 |
+ |
*q++ = (c >> 2) & 1; |
319 |
+ |
*q++ = (c >> 1) & 1; |
320 |
+ |
*q++ = c & 1; |
321 |
+ |
} |
322 |
+ |
} |
323 |
+ |
|
324 |
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static void Blit_Expand_2_To_8(uint8 * dest, const uint8 * p, uint32 length) |
325 |
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{ |
326 |
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uint8 *q = (uint8 *)dest; |
435 |
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{ 8, 0x000000, 0x000000, 0x000000, Blit_Copy_Raw , Blit_Copy_Raw }, // OK (NBO) |
436 |
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{ 15, 0x007c00, 0x0003e0, 0x00001f, Blit_Copy_Raw , Blit_RGB555_OBO }, // OK (OBO) |
437 |
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{ 15, 0x00001f, 0x0003e0, 0x007c00, Blit_BGR555_NBO , Blit_BGR555_OBO }, // NT |
438 |
+ |
{ 16, 0x007c00, 0x0003e0, 0x00001f, Blit_Copy_Raw , Blit_RGB555_OBO }, // OK (OBO) |
439 |
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{ 16, 0x00f800, 0x0007e0, 0x00001f, Blit_RGB565_NBO , Blit_RGB565_OBO }, // OK (OBO) |
440 |
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{ 24, 0xff0000, 0x00ff00, 0x0000ff, Blit_Copy_Raw , Blit_RGB888_OBO }, // OK (OBO) |
441 |
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{ 24, 0x0000ff, 0x00ff00, 0xff0000, Blit_BGR888_NBO , Blit_BGR888_OBO }, // NT |
446 |
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{ 8, 0x000000, 0x000000, 0x000000, Blit_Copy_Raw , Blit_Copy_Raw }, // OK (NBO) |
447 |
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{ 15, 0x007c00, 0x0003e0, 0x00001f, Blit_RGB555_NBO , Blit_Copy_Raw }, // OK (NBO) |
448 |
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{ 15, 0x00001f, 0x0003e0, 0x007c00, Blit_BGR555_NBO , Blit_BGR555_OBO }, // NT |
449 |
+ |
{ 16, 0x007c00, 0x0003e0, 0x00001f, Blit_RGB555_NBO , Blit_Copy_Raw }, // OK (NBO) |
450 |
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{ 16, 0x00f800, 0x0007e0, 0x00001f, Blit_RGB565_NBO , Blit_RGB565_OBO }, // OK (NBO) |
451 |
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{ 24, 0xff0000, 0x00ff00, 0x0000ff, Blit_RGB888_NBO , Blit_Copy_Raw }, // OK (NBO) |
452 |
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{ 24, 0x0000ff, 0x00ff00, 0xff0000, Blit_BGR888_NBO , Blit_BGR888_OBO }, // NT |
458 |
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// Initialize the framebuffer update function |
459 |
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// Returns FALSE, if the function was to be reduced to a simple memcpy() |
460 |
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// --> In that case, VOSF is not necessary |
461 |
< |
bool Screen_blitter_init(XVisualInfo * visual_info, bool native_byte_order, video_depth mac_depth) |
461 |
> |
bool Screen_blitter_init(VisualFormat const & visual_format, bool native_byte_order, int mac_depth) |
462 |
|
{ |
463 |
+ |
#if USE_SDL_VIDEO |
464 |
+ |
const bool use_sdl_video = true; |
465 |
+ |
#else |
466 |
+ |
const bool use_sdl_video = false; |
467 |
+ |
#endif |
468 |
|
#if REAL_ADDRESSING || DIRECT_ADDRESSING |
469 |
< |
if (mac_depth == VDEPTH_1BIT) { |
469 |
> |
if (!use_sdl_video && mac_depth == 1) { |
470 |
|
|
471 |
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// 1-bit mode uses a 1-bit X image, so there's no need for special blitting routines |
472 |
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Screen_blit = Blit_Copy_Raw; |
473 |
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|
474 |
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} else { |
475 |
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|
413 |
– |
visualFormat.depth = visual_info->depth; |
414 |
– |
visualFormat.Rmask = visual_info->red_mask; |
415 |
– |
visualFormat.Gmask = visual_info->green_mask; |
416 |
– |
visualFormat.Bmask = visual_info->blue_mask; |
417 |
– |
|
476 |
|
// Compute RGB shift values |
477 |
+ |
visualFormat = visual_format; |
478 |
|
visualFormat.Rshift = 0; |
479 |
|
for (uint32 Rmask = visualFormat.Rmask; Rmask && ((Rmask & 1) != 1); Rmask >>= 1) |
480 |
|
++visualFormat.Rshift; |
485 |
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for (uint32 Bmask = visualFormat.Bmask; Bmask && ((Bmask & 1) != 1); Bmask >>= 1) |
486 |
|
++visualFormat.Bshift; |
487 |
|
|
488 |
< |
bool blitter_found = false; |
489 |
< |
|
490 |
< |
// 2/4/8-bit mode on 8/16/32-bit screen? |
491 |
< |
if (visualFormat.depth == 8) { |
492 |
< |
if (mac_depth == VDEPTH_2BIT) { |
493 |
< |
Screen_blit = Blit_Expand_2_To_8; |
494 |
< |
blitter_found = true; |
495 |
< |
} else if (mac_depth == VDEPTH_4BIT) { |
437 |
< |
Screen_blit = Blit_Expand_4_To_8; |
438 |
< |
blitter_found = true; |
488 |
> |
// 1/2/4/8-bit mode on 8/16/32-bit screen? |
489 |
> |
Screen_blit = NULL; |
490 |
> |
switch (visualFormat.depth) { |
491 |
> |
case 8: |
492 |
> |
switch (mac_depth) { |
493 |
> |
case 1: Screen_blit = Blit_Expand_1_To_8; break; |
494 |
> |
case 2: Screen_blit = Blit_Expand_2_To_8; break; |
495 |
> |
case 4: Screen_blit = Blit_Expand_4_To_8; break; |
496 |
|
} |
497 |
< |
} else if (visualFormat.depth == 15 || visualFormat.depth == 16) { |
498 |
< |
if (mac_depth == VDEPTH_2BIT) { |
499 |
< |
Screen_blit = Blit_Expand_2_To_16; |
500 |
< |
blitter_found = true; |
501 |
< |
} else if (mac_depth == VDEPTH_4BIT) { |
502 |
< |
Screen_blit = Blit_Expand_4_To_16; |
503 |
< |
blitter_found = true; |
447 |
< |
} else if (mac_depth == VDEPTH_8BIT) { |
448 |
< |
Screen_blit = Blit_Expand_8_To_16; |
449 |
< |
blitter_found = true; |
497 |
> |
break; |
498 |
> |
case 15: |
499 |
> |
case 16: |
500 |
> |
switch (mac_depth) { |
501 |
> |
case 2: Screen_blit = Blit_Expand_2_To_16; break; |
502 |
> |
case 4: Screen_blit = Blit_Expand_4_To_16; break; |
503 |
> |
case 8: Screen_blit = Blit_Expand_8_To_16; break; |
504 |
|
} |
505 |
< |
} else if (visualFormat.depth == 24 || visualFormat.depth == 32) { |
506 |
< |
if (mac_depth == VDEPTH_2BIT) { |
507 |
< |
Screen_blit = Blit_Expand_2_To_32; |
508 |
< |
blitter_found = true; |
509 |
< |
} else if (mac_depth == VDEPTH_4BIT) { |
510 |
< |
Screen_blit = Blit_Expand_4_To_32; |
511 |
< |
blitter_found = true; |
458 |
< |
} else if (mac_depth == VDEPTH_8BIT) { |
459 |
< |
Screen_blit = Blit_Expand_8_To_32; |
460 |
< |
blitter_found = true; |
505 |
> |
break; |
506 |
> |
case 24: |
507 |
> |
case 32: |
508 |
> |
switch (mac_depth) { |
509 |
> |
case 2: Screen_blit = Blit_Expand_2_To_32; break; |
510 |
> |
case 4: Screen_blit = Blit_Expand_4_To_32; break; |
511 |
> |
case 8: Screen_blit = Blit_Expand_8_To_32; break; |
512 |
|
} |
513 |
+ |
break; |
514 |
|
} |
515 |
+ |
bool blitter_found = (Screen_blit != NULL); |
516 |
|
|
517 |
|
// Search for an adequate blit function |
518 |
|
const int blitters_count = sizeof(Screen_blitters)/sizeof(Screen_blitters[0]); |
551 |
|
// --> In that case, we return FALSE |
552 |
|
return (Screen_blit != Blit_Copy_Raw); |
553 |
|
} |
501 |
– |
#endif /* ENABLE_VOSF */ |