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depth=24 write mask fix (Volker Ruppert) 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1404 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-04-26 20:49:17 +00:00
parent e4afee9716
commit ad81218e40
2 changed files with 15 additions and 1 deletions
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2
hw/cirrus_vga.c
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@ -31,7 +31,7 @@
/*
* TODO:
* - add support for WRITEMASK (GR2F)
* - destination write mask support not complete (bits 5..7)
* - optimize linear mappings
* - optimize bitblt functions
*/

14
hw/cirrus_vga_rop2.h
View File

@ -47,7 +47,11 @@ glue(glue(glue(cirrus_patternfill_, ROP_NAME), _),DEPTH)
int x, y, pattern_y, pattern_pitch, pattern_x;
unsigned int col;
const uint8_t *src1;
#if DEPTH == 24
int skipleft = s->gr[0x2f] & 0x1f;
#else
int skipleft = (s->gr[0x2f] & 0x07) * (DEPTH / 8);
#endif
#if DEPTH == 8
pattern_pitch = 8;
@ -100,8 +104,13 @@ glue(glue(glue(cirrus_colorexpand_transp_, ROP_NAME), _),DEPTH)
unsigned int col;
unsigned bitmask;
unsigned index;
#if DEPTH == 24
int dstskipleft = s->gr[0x2f] & 0x1f;
int srcskipleft = dstskipleft / 3;
#else
int srcskipleft = s->gr[0x2f] & 0x07;
int dstskipleft = srcskipleft * (DEPTH / 8);
#endif
if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) {
bits_xor = 0xff;
@ -178,8 +187,13 @@ glue(glue(glue(cirrus_colorexpand_pattern_transp_, ROP_NAME), _),DEPTH)
int x, y, bitpos, pattern_y;
unsigned int bits, bits_xor;
unsigned int col;
#if DEPTH == 24
int dstskipleft = s->gr[0x2f] & 0x1f;
int srcskipleft = dstskipleft / 3;
#else
int srcskipleft = s->gr[0x2f] & 0x07;
int dstskipleft = srcskipleft * (DEPTH / 8);
#endif
if (s->cirrus_blt_modeext & CIRRUS_BLTMODEEXT_COLOREXPINV) {
bits_xor = 0xff;