mirror of https://gitee.com/openkylin/qemu.git
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
/*
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* QEMU Cirrus CLGD 54xx VGA Emulator.
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*
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* Copyright (c) 2004 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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static void
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glue(cirrus_bitblt_rop_fwd_, ROP_NAME)(CirrusVGAState *s,
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uint8_t *dst,const uint8_t *src,
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int dstpitch,int srcpitch,
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int bltwidth,int bltheight)
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{
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int x,y;
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dstpitch -= bltwidth;
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srcpitch -= bltwidth;
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for (y = 0; y < bltheight; y++) {
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for (x = 0; x < bltwidth; x++) {
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ROP_OP(*dst, *src);
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dst++;
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src++;
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}
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dst += dstpitch;
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src += srcpitch;
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}
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}
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static void
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glue(cirrus_bitblt_rop_bkwd_, ROP_NAME)(CirrusVGAState *s,
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uint8_t *dst,const uint8_t *src,
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int dstpitch,int srcpitch,
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int bltwidth,int bltheight)
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{
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int x,y;
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dstpitch += bltwidth;
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srcpitch += bltwidth;
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for (y = 0; y < bltheight; y++) {
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for (x = 0; x < bltwidth; x++) {
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ROP_OP(*dst, *src);
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dst--;
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src--;
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}
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dst += dstpitch;
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src += srcpitch;
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}
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}
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#define DEPTH 8
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#include "cirrus_vga_rop2.h"
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#define DEPTH 16
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#include "cirrus_vga_rop2.h"
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#define DEPTH 24
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#include "cirrus_vga_rop2.h"
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#define DEPTH 32
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#include "cirrus_vga_rop2.h"
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#undef ROP_NAME
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#undef ROP_OP
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