/*
* 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.
*/
#if DEPTH == 8
#define PUTPIXEL() ROP_OP(&d[0], col)
#elif DEPTH == 16
#define PUTPIXEL() ROP_OP_16((uint16_t *)&d[0], col)
#elif DEPTH == 24
#define PUTPIXEL() ROP_OP(&d[0], col); \
ROP_OP(&d[1], (col >> 8)); \
ROP_OP(&d[2], (col >> 16))
#elif DEPTH == 32
#define PUTPIXEL() ROP_OP_32(((uint32_t *)&d[0]), col)
#else
#error unsupported DEPTH
#endif
static void
glue(glue(glue(cirrus_patternfill_, ROP_NAME), _),DEPTH)
(CirrusVGAState * s, uint8_t * dst,
const uint8_t * src,
int dstpitch, int srcpitch,
int bltwidth, int bltheight)
{
uint8_t *d;
int x, y, pattern_y, pattern_pitch, pattern_x;
unsigned int col;
const uint8_t *src1;
#if DEPTH == 24
int skipleft = s->vga.gr[0x2f] & 0x1f;
#else
int skipleft = (s->vga.gr[0x2f] & 0x07) * (DEPTH / 8);
#endif
#if DEPTH == 8
pattern_pitch = 8;
#elif DEPTH == 16
pattern_pitch = 16;
#else
pattern_pitch = 32;
#endif
pattern_y = s->cirrus_blt_srcaddr & 7;
for(y = 0; y < bltheight; y++) {
pattern_x = skipleft;
d = dst + skipleft;
src1 = src + pattern_y * pattern_pitch;
for (x = skipleft; x < bltwidth; x += (DEPTH / 8)) {
#if DEPTH == 8
col = src1[pattern_x];
pattern_x = (pattern_x + 1) & 7;
#elif DEPTH == 16
col = ((uint16_t *)(src1 + pattern_x))[0];
pattern_x = (pattern_x + 2) & 15;
#elif DEPTH == 24
{
const uint8_t *src2 = src1 + pattern_x * 3;
col = src2[0] | (src2[1] << 8) | (src2[2] << 16);
pattern_x = (pattern_x + 1) & 7;
}
#else
col = ((uint32_t *)(src1 + pattern_x))[0];
pattern_x = (pattern_x + 4) & 31;
#endif
PUTPIXEL();
d += (DEPTH / 8);
}
pattern_y = (pattern_y + 1) & 7;
dst += dstpitch;
}
}
/* NOTE: srcpitch is ignored */
static void
glue(glue(glue(cirrus_colorexpand_transp_, ROP_NAME), _),DEPTH)
(CirrusVGAState * s, uint8_t * dst,
const uint8_t * src,
int dstpitch, int srcpitch,
int bltwidth, int bltheight)
{
uint8_t *d;
int x, y;
unsigned bits, bits_xor;
unsigned int col;
unsigned bitmask;
unsigned index;
#if DEPTH == 24
int dstskipleft = s->vga.gr[0x2f] & 0x1f;
int srcskipleft = dstskipleft / 3;
#else
int srcskipleft = s->vga.gr[0x2f] & 0x07;
int dstskipleft = srcskipleft * (DEPTH / 8);
#endif
if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) {
bits_xor = 0xff;
col = s->cirrus_blt_bgcol;
} else {
bits_xor = 0x00;
col = s->cirrus_blt_fgcol;
}
for(y = 0; y < bltheight; y++) {
bitmask = 0x80 >> srcskipleft;
bits = *src++ ^ bits_xor;
d = dst + dstskipleft;
for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) {
if ((bitmask & 0xff) == 0) {
bitmask = 0x80;
bits = *src++ ^ bits_xor;
}
index = (bits & bitmask);
if (index) {
PUTPIXEL();
}
d += (DEPTH / 8);
bitmask >>= 1;
}
dst += dstpitch;
}
}
static void
glue(glue(glue(cirrus_colorexpand_, ROP_NAME), _),DEPTH)
(CirrusVGAState * s, uint8_t * dst,
const uint8_t * src,
int dstpitch, int srcpitch,
int bltwidth, int bltheight)
{
uint32_t colors[2];
uint8_t *d;
int x, y;
unsigned bits;
unsigned int col;
unsigned bitmask;
int srcskipleft = s->vga.gr[0x2f] & 0x07;
int dstskipleft = srcskipleft * (DEPTH / 8);
colors[0] = s->cirrus_blt_bgcol;
colors[1] = s->cirrus_blt_fgcol;
for(y = 0; y < bltheight; y++) {
bitmask = 0x80 >> srcskipleft;
bits = *src++;
d = dst + dstskipleft;
for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) {
if ((bitmask & 0xff) == 0) {
bitmask = 0x80;
bits = *src++;
}
col = colors[!!(bits & bitmask)];
PUTPIXEL();
d += (DEPTH / 8);
bitmask >>= 1;
}
dst += dstpitch;
}
}
static void
glue(glue(glue(cirrus_colorexpand_pattern_transp_, ROP_NAME), _),DEPTH)
(CirrusVGAState * s, uint8_t * dst,
const uint8_t * src,
int dstpitch, int srcpitch,
int bltwidth, int bltheight)
{
uint8_t *d;
int x, y, bitpos, pattern_y;
unsigned int bits, bits_xor;
unsigned int col;
#if DEPTH == 24
int dstskipleft = s->vga.gr[0x2f] & 0x1f;
int srcskipleft = dstskipleft / 3;
#else
int srcskipleft = s->vga.gr[0x2f] & 0x07;
int dstskipleft = srcskipleft * (DEPTH / 8);
#endif
if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) {
bits_xor = 0xff;
col = s->cirrus_blt_bgcol;
} else {
bits_xor = 0x00;
col = s->cirrus_blt_fgcol;
}
pattern_y = s->cirrus_blt_srcaddr & 7;
for(y = 0; y < bltheight; y++) {
bits = src[pattern_y] ^ bits_xor;
bitpos = 7 - srcskipleft;
d = dst + dstskipleft;
for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) {
if ((bits >> bitpos) & 1) {
PUTPIXEL();
}
d += (DEPTH / 8);
bitpos = (bitpos - 1) & 7;
}
pattern_y = (pattern_y + 1) & 7;
dst += dstpitch;
}
}
static void
glue(glue(glue(cirrus_colorexpand_pattern_, ROP_NAME), _),DEPTH)
(CirrusVGAState * s, uint8_t * dst,
const uint8_t * src,
int dstpitch, int srcpitch,
int bltwidth, int bltheight)
{
uint32_t colors[2];
uint8_t *d;
int x, y, bitpos, pattern_y;
unsigned int bits;
unsigned int col;
int srcskipleft = s->vga.gr[0x2f] & 0x07;
int dstskipleft = srcskipleft * (DEPTH / 8);
colors[0] = s->cirrus_blt_bgcol;
colors[1] = s->cirrus_blt_fgcol;
pattern_y = s->cirrus_blt_srcaddr & 7;
for(y = 0; y < bltheight; y++) {
bits = src[pattern_y];
bitpos = 7 - srcskipleft;
d = dst + dstskipleft;
for (x = dstskipleft; x < bltwidth; x += (DEPTH / 8)) {
col = colors[(bits >> bitpos) & 1];
PUTPIXEL();
d += (DEPTH / 8);
bitpos = (bitpos - 1) & 7;
}
pattern_y = (pattern_y + 1) & 7;
dst += dstpitch;
}
}
static void
glue(glue(glue(cirrus_fill_, ROP_NAME), _),DEPTH)
(CirrusVGAState *s,
uint8_t *dst, int dst_pitch,
int width, int height)
{
uint8_t *d, *d1;
uint32_t col;
int x, y;
col = s->cirrus_blt_fgcol;
d1 = dst;
for(y = 0; y < height; y++) {
d = d1;
for(x = 0; x < width; x += (DEPTH / 8)) {
PUTPIXEL();
d += (DEPTH / 8);
}
d1 += dst_pitch;
}
}
#undef DEPTH
#undef PUTPIXEL
