[qemu.git] / hw / cirrus_vga_rop.h

/*
 * QEMU Cirrus CLGD 54xx VGA Emulator.
 *
 * Copyright (c) 2004 Fabrice Bellard
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

static void
glue(cirrus_bitblt_rop_fwd_, ROP_NAME)(CirrusVGAState *s,
                             uint8_t *dst,const uint8_t *src,
                             int dstpitch,int srcpitch,
                             int bltwidth,int bltheight)
{
    int x,y;
    dstpitch -= bltwidth;
    srcpitch -= bltwidth;

    if (dstpitch < 0 || srcpitch < 0) {
        /* is 0 valid? srcpitch == 0 could be useful */
        return;
    }

    for (y = 0; y < bltheight; y++) {
        for (x = 0; x < bltwidth; x++) {
            ROP_OP(*dst, *src);
            dst++;
            src++;
        }
        dst += dstpitch;
        src += srcpitch;
    }
}

static void
glue(cirrus_bitblt_rop_bkwd_, ROP_NAME)(CirrusVGAState *s,
                                        uint8_t *dst,const uint8_t *src,
                                        int dstpitch,int srcpitch,
                                        int bltwidth,int bltheight)
{
    int x,y;
    dstpitch += bltwidth;
    srcpitch += bltwidth;
    for (y = 0; y < bltheight; y++) {
        for (x = 0; x < bltwidth; x++) {
            ROP_OP(*dst, *src);
            dst--;
            src--;
        }
        dst += dstpitch;
        src += srcpitch;
    }
}

static void
glue(glue(cirrus_bitblt_rop_fwd_transp_, ROP_NAME),_8)(CirrusVGAState *s,
						       uint8_t *dst,const uint8_t *src,
						       int dstpitch,int srcpitch,
						       int bltwidth,int bltheight)
{
    int x,y;
    uint8_t p;
    dstpitch -= bltwidth;
    srcpitch -= bltwidth;
    for (y = 0; y < bltheight; y++) {
        for (x = 0; x < bltwidth; x++) {
	    p = *dst;
            ROP_OP(p, *src);
	    if (p != s->vga.gr[0x34]) *dst = p;
            dst++;
            src++;
        }
        dst += dstpitch;
        src += srcpitch;
    }
}

static void
glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_8)(CirrusVGAState *s,
							uint8_t *dst,const uint8_t *src,
							int dstpitch,int srcpitch,
							int bltwidth,int bltheight)
{
    int x,y;
    uint8_t p;
    dstpitch += bltwidth;
    srcpitch += bltwidth;
    for (y = 0; y < bltheight; y++) {
        for (x = 0; x < bltwidth; x++) {
	    p = *dst;
            ROP_OP(p, *src);
	    if (p != s->vga.gr[0x34]) *dst = p;
            dst--;
            src--;
        }
        dst += dstpitch;
        src += srcpitch;
    }
}

static void
glue(glue(cirrus_bitblt_rop_fwd_transp_, ROP_NAME),_16)(CirrusVGAState *s,
							uint8_t *dst,const uint8_t *src,
							int dstpitch,int srcpitch,
							int bltwidth,int bltheight)
{
    int x,y;
    uint8_t p1, p2;
    dstpitch -= bltwidth;
    srcpitch -= bltwidth;
    for (y = 0; y < bltheight; y++) {
        for (x = 0; x < bltwidth; x+=2) {
	    p1 = *dst;
	    p2 = *(dst+1);
            ROP_OP(p1, *src);
            ROP_OP(p2, *(src+1));
	    if ((p1 != s->vga.gr[0x34]) || (p2 != s->vga.gr[0x35])) {
		*dst = p1;
		*(dst+1) = p2;
	    }
            dst+=2;
            src+=2;
        }
        dst += dstpitch;
        src += srcpitch;
    }
}

static void
glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_16)(CirrusVGAState *s,
							 uint8_t *dst,const uint8_t *src,
							 int dstpitch,int srcpitch,
							 int bltwidth,int bltheight)
{
    int x,y;
    uint8_t p1, p2;
    dstpitch += bltwidth;
    srcpitch += bltwidth;
    for (y = 0; y < bltheight; y++) {
        for (x = 0; x < bltwidth; x+=2) {
	    p1 = *(dst-1);
	    p2 = *dst;
            ROP_OP(p1, *(src-1));
            ROP_OP(p2, *src);
	    if ((p1 != s->vga.gr[0x34]) || (p2 != s->vga.gr[0x35])) {
		*(dst-1) = p1;
		*dst = p2;
	    }
            dst-=2;
            src-=2;
        }
        dst += dstpitch;
        src += srcpitch;
    }
}

#define DEPTH 8
#include "cirrus_vga_rop2.h"

#define DEPTH 16
#include "cirrus_vga_rop2.h"

#define DEPTH 24
#include "cirrus_vga_rop2.h"

#define DEPTH 32
#include "cirrus_vga_rop2.h"

#undef ROP_NAME
#undef ROP_OP
Commit	Line	Data
a5082316 FB	1	/*
a5082316 FB	2	* QEMU Cirrus CLGD 54xx VGA Emulator.
5fafdf24	3	*
a5082316	4	* Copyright (c) 2004 Fabrice Bellard
5fafdf24	5	*
a5082316 FB	6	* Permission is hereby granted, free of charge, to any person obtaining a copy
	7	* of this software and associated documentation files (the "Software"), to deal
	8	* in the Software without restriction, including without limitation the rights
	9	* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	10	* copies of the Software, and to permit persons to whom the Software is
	11	* furnished to do so, subject to the following conditions:
	12	*
	13	* The above copyright notice and this permission notice shall be included in
	14	* all copies or substantial portions of the Software.
	15	*
	16	* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
	17	* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	18	* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
	19	* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
	20	* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
	21	* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
	22	* THE SOFTWARE.
	23	*/
	24
	25	static void
	26	glue(cirrus_bitblt_rop_fwd_, ROP_NAME)(CirrusVGAState *s,
	27	uint8_t dst,const uint8_t src,
	28	int dstpitch,int srcpitch,
	29	int bltwidth,int bltheight)
	30	{
	31	int x,y;
	32	dstpitch -= bltwidth;
	33	srcpitch -= bltwidth;
b2eb849d AJ	34
	35	if (dstpitch < 0 \|\| srcpitch < 0) {
	36	/* is 0 valid? srcpitch == 0 could be useful */
	37	return;
	38	}
	39
a5082316 FB	40	for (y = 0; y < bltheight; y++) {
	41	for (x = 0; x < bltwidth; x++) {
	42	ROP_OP(dst, src);
	43	dst++;
	44	src++;
	45	}
	46	dst += dstpitch;
	47	src += srcpitch;
	48	}
	49	}
	50
	51	static void
	52	glue(cirrus_bitblt_rop_bkwd_, ROP_NAME)(CirrusVGAState *s,
	53	uint8_t dst,const uint8_t src,
	54	int dstpitch,int srcpitch,
	55	int bltwidth,int bltheight)
	56	{
	57	int x,y;
	58	dstpitch += bltwidth;
	59	srcpitch += bltwidth;
	60	for (y = 0; y < bltheight; y++) {
	61	for (x = 0; x < bltwidth; x++) {
	62	ROP_OP(dst, src);
	63	dst--;
	64	src--;
	65	}
	66	dst += dstpitch;
	67	src += srcpitch;
	68	}
	69	}
	70
96cf2df8 TS	71	static void
	72	glue(glue(cirrus_bitblt_rop_fwd_transp_, ROP_NAME),_8)(CirrusVGAState *s,
	73	uint8_t dst,const uint8_t src,
	74	int dstpitch,int srcpitch,
	75	int bltwidth,int bltheight)
	76	{
	77	int x,y;
	78	uint8_t p;
	79	dstpitch -= bltwidth;
	80	srcpitch -= bltwidth;
	81	for (y = 0; y < bltheight; y++) {
	82	for (x = 0; x < bltwidth; x++) {
	83	p = *dst;
	84	ROP_OP(p, *src);
4e12cd94	85	if (p != s->vga.gr[0x34]) *dst = p;
96cf2df8 TS	86	dst++;
	87	src++;
	88	}
	89	dst += dstpitch;
	90	src += srcpitch;
	91	}
	92	}
	93
	94	static void
	95	glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_8)(CirrusVGAState *s,
	96	uint8_t dst,const uint8_t src,
	97	int dstpitch,int srcpitch,
	98	int bltwidth,int bltheight)
	99	{
	100	int x,y;
	101	uint8_t p;
	102	dstpitch += bltwidth;
	103	srcpitch += bltwidth;
	104	for (y = 0; y < bltheight; y++) {
	105	for (x = 0; x < bltwidth; x++) {
	106	p = *dst;
	107	ROP_OP(p, *src);
4e12cd94	108	if (p != s->vga.gr[0x34]) *dst = p;
96cf2df8 TS	109	dst--;
	110	src--;
	111	}
	112	dst += dstpitch;
	113	src += srcpitch;
	114	}
	115	}
	116
	117	static void
	118	glue(glue(cirrus_bitblt_rop_fwd_transp_, ROP_NAME),_16)(CirrusVGAState *s,
	119	uint8_t dst,const uint8_t src,
	120	int dstpitch,int srcpitch,
	121	int bltwidth,int bltheight)
	122	{
	123	int x,y;
	124	uint8_t p1, p2;
	125	dstpitch -= bltwidth;
	126	srcpitch -= bltwidth;
	127	for (y = 0; y < bltheight; y++) {
	128	for (x = 0; x < bltwidth; x+=2) {
	129	p1 = *dst;
	130	p2 = *(dst+1);
	131	ROP_OP(p1, *src);
	132	ROP_OP(p2, *(src+1));
4e12cd94	133	if ((p1 != s->vga.gr[0x34]) \|\| (p2 != s->vga.gr[0x35])) {
96cf2df8 TS	134	*dst = p1;
	135	*(dst+1) = p2;
	136	}
	137	dst+=2;
	138	src+=2;
	139	}
	140	dst += dstpitch;
	141	src += srcpitch;
	142	}
	143	}
	144
	145	static void
	146	glue(glue(cirrus_bitblt_rop_bkwd_transp_, ROP_NAME),_16)(CirrusVGAState *s,
	147	uint8_t dst,const uint8_t src,
	148	int dstpitch,int srcpitch,
	149	int bltwidth,int bltheight)
	150	{
	151	int x,y;
	152	uint8_t p1, p2;
	153	dstpitch += bltwidth;
	154	srcpitch += bltwidth;
	155	for (y = 0; y < bltheight; y++) {
	156	for (x = 0; x < bltwidth; x+=2) {
	157	p1 = *(dst-1);
	158	p2 = *dst;
	159	ROP_OP(p1, *(src-1));
	160	ROP_OP(p2, *src);
4e12cd94	161	if ((p1 != s->vga.gr[0x34]) \|\| (p2 != s->vga.gr[0x35])) {
96cf2df8 TS	162	*(dst-1) = p1;
	163	*dst = p2;
	164	}
	165	dst-=2;
	166	src-=2;
	167	}
	168	dst += dstpitch;
	169	src += srcpitch;
	170	}
	171	}
	172
a5082316 FB	173	#define DEPTH 8
	174	#include "cirrus_vga_rop2.h"
	175
	176	#define DEPTH 16
	177	#include "cirrus_vga_rop2.h"
	178
	179	#define DEPTH 24
	180	#include "cirrus_vga_rop2.h"
	181
	182	#define DEPTH 32
	183	#include "cirrus_vga_rop2.h"
	184
	185	#undef ROP_NAME
	186	#undef ROP_OP