Patch-ID# 100223-03
Keywords: drawn, text, buffered, 12bit, buffering, double, pixrects, cg12_batch
Synopsis: SunOS 4.1.1 cg12 :12bit double buffered text is not drawn correctly
Date: 16-Aug-91

SunOS release: 4.1.1

Unbundled Product: 

Unbundled Release: 

Topic: 

BugID's fixed with this patch: 1050688

Architectures for which this patch is available: sun4

Obsoleted by: 4.1.1GFX-Rev2

Problem Description: 
	12bit double buffered text on a cg12 is not drawn correctly. 
	There are two problems: 1)  when PIX_SRC is specified with a 
	color value of 0, nothing is drawn, i.e. the text comes out 
	black and 2)  when reading from one buffer but writing to the 
	other, the text is distorted.  These problems are easily fixed 
	if the cg12_batchrop code does two things.  First, the code must 
	assign a color value of all 1's if the color is 0, but the rop 
	uses PIX_SRC.  Second, the code must punt to mem_batchrop if 
	the buffer being read is different from the buffer being written to.

INSTALL:
	Save original pixrect libraries (in a hold directory or renaming
	them).

	Copy new libraries into /usr/lib.

	Re-link application.