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Fix lockup on faster machines when drawing in multiple clip rectangles 

(e.g. when part of a 3D window is obscured by another window)
main
Tim Smith 2002-07-02 21:34:25 +00:00
parent bb91bc0879
commit cc45cc0609
2 changed files with 3 additions and 3 deletions
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1
linux/radeon_drv.h
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@ -477,6 +477,7 @@ extern int radeon_cp_flip( struct inode *inode, struct file *filp,
# define RADEON_CNTL_HOSTDATA_BLT 0x00009400
# define RADEON_CNTL_PAINT_MULTI 0x00009A00
# define RADEON_CNTL_BITBLT_MULTI 0x00009B00
# define RADEON_CNTL_SET_SCISSORS 0xC0001E00
#define RADEON_CP_PACKET_MASK 0xC0000000
#define RADEON_CP_PACKET_COUNT_MASK 0x3fff0000

5
linux/radeon_state.c
View File

@ -48,10 +48,9 @@ static inline void radeon_emit_clip_rect( drm_radeon_private_t *dev_priv,
DRM_DEBUG( " box: x1=%d y1=%d x2=%d y2=%d\n",
box->x1, box->y1, box->x2, box->y2 );
BEGIN_RING( 4 );
OUT_RING( CP_PACKET0( RADEON_RE_TOP_LEFT, 0 ) );
BEGIN_RING( 3 );
OUT_RING( CP_PACKET3( RADEON_CNTL_SET_SCISSORS, 1 ));
OUT_RING( (box->y1 << 16) | box->x1 );
OUT_RING( CP_PACKET0( RADEON_RE_WIDTH_HEIGHT, 0 ) );
/* OUT_RING( ((box->y2 - 1) << 16) | (box->x2 - 1) );*/
OUT_RING( (box->y2 << 16) | box->x2 );
ADVANCE_RING();