diff options
Diffstat (limited to 'src/ast_accel.c')
| -rw-r--r-- | src/ast_accel.c | 30 |
1 files changed, 15 insertions, 15 deletions
diff --git a/src/ast_accel.c b/src/ast_accel.c index ad954e8..ef21462 100644 --- a/src/ast_accel.c +++ b/src/ast_accel.c @@ -351,22 +351,29 @@ ASTSubsequentScreenToScreenCopy(ScrnInfoPtr pScrn, int x1, int y1, int x2, else cmdreg &= ~CMD_ENABLE_CLIP; srcbase = dstbase = 0; + + if (x1 < x2) + cmdreg |= CMD_X_DEC; + + if (y1 < y2) + cmdreg |= CMD_Y_DEC; - if (y1 >= MAX_SRC_Y) + if ((y1 + height) >= MAX_SRC_Y) { srcbase=pAST->VideoModeInfo.ScreenPitch*y1; + y1 = 0; } - if (y2 >= pScrn->virtualY) + if ((y2 + height) >= pScrn->virtualY) { dstbase=pAST->VideoModeInfo.ScreenPitch*y2; + y2 = 0; } - if (x1 < x2) + if (cmdreg & CMD_X_DEC) { - src_x = x1 + width - 1; - dst_x = x2 + width - 1; - cmdreg |= CMD_X_DEC; + src_x = x1 + width - 1; + dst_x = x2 + width - 1; } else { @@ -374,20 +381,13 @@ ASTSubsequentScreenToScreenCopy(ScrnInfoPtr pScrn, int x1, int y1, int x2, dst_x = x2; } - if (y1 < y2) - { - if (srcbase) y1 = 0; - if (dstbase) y2 = 0; - + if (cmdreg & CMD_Y_DEC) + { src_y = y1 + height - 1; dst_y = y2 + height - 1; - cmdreg |= CMD_Y_DEC; } else { - if (srcbase) y1 = 0; - if (dstbase) y2 = 0; - src_y = y1; dst_y = y2; } |