Mercurial > sdl-ios-xcode
view test/Makefile.in @ 1543:98f9b16f565c
From: "Alex Volkov"
Date: Thu, 10 Nov 2005 21:53:40 -0500
Subject: [SDL] BUG[?]: 32bpp RGBA->RGB colorkey blit, no SDL_SRCALPHA
It seems there is either a documentation vs. reality mismatch or a real bug
in SDL_blit_N.c:BlitNtoNKey().
The exact blit in question is a 32bpp RGBA->RGB, where RGBA has SDL_COLORKEY
and *no* SDL_SRCALPHA flags. The doc in SDL_video.h states:
* RGBA->RGB:
* SDL_SRCALPHA not set:
* copy RGB.
* if SDL_SRCCOLORKEY set, only copy the pixels matching the
* RGB values of the source colour key, ignoring alpha in the
* comparison.
BlitNtoNKey(), however, forgets to "ignore alpha in the comparison". The
documentation makes perfect sense, so I think it is the code that is faulty.
The attached patch corrects the code.
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Wed, 15 Mar 2006 15:43:15 +0000 |
parents | 73dc5d39bbf8 |
children | 1577404809f0 d3ac464fb3c1 |
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# Makefile to build the SDL tests srcdir = @srcdir@ CC = @CC@ EXE = @EXE@ CFLAGS = @CFLAGS@ LIBS = @LIBS@ TARGETS = checkkeys$(EXE) graywin$(EXE) loopwave$(EXE) testalpha$(EXE) testbitmap$(EXE) testblitspeed$(EXE) testcdrom$(EXE) testdyngl$(EXE) testerror$(EXE) testfile$(EXE) testgamma$(EXE) testgl$(EXE) testhread$(EXE) testiconv$(EXE) testjoystick$(EXE) testkeys$(EXE) testlock$(EXE) testoverlay2$(EXE) testoverlay$(EXE) testpalette$(EXE) testplatform$(EXE) testsem$(EXE) testsprite$(EXE) testtimer$(EXE) testver$(EXE) testvidinfo$(EXE) testwin$(EXE) testwm$(EXE) threadwin$(EXE) torturethread$(EXE) all: $(TARGETS) checkkeys$(EXE): $(srcdir)/checkkeys.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) graywin$(EXE): $(srcdir)/graywin.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) loopwave$(EXE): $(srcdir)/loopwave.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testalpha$(EXE): $(srcdir)/testalpha.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@ testbitmap$(EXE): $(srcdir)/testbitmap.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testblitspeed$(EXE): $(srcdir)/testblitspeed.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testcdrom$(EXE): $(srcdir)/testcdrom.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testdyngl$(EXE): $(srcdir)/testdyngl.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testerror$(EXE): $(srcdir)/testerror.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testfile$(EXE): $(srcdir)/testfile.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testgamma$(EXE): $(srcdir)/testgamma.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@ testgl$(EXE): $(srcdir)/testgl.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) @GLLIB@ @MATHLIB@ testhread$(EXE): $(srcdir)/testhread.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testiconv$(EXE): $(srcdir)/testiconv.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testjoystick$(EXE): $(srcdir)/testjoystick.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testkeys$(EXE): $(srcdir)/testkeys.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testlock$(EXE): $(srcdir)/testlock.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testoverlay2$(EXE): $(srcdir)/testoverlay2.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testoverlay$(EXE): $(srcdir)/testoverlay.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testpalette$(EXE): $(srcdir)/testpalette.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@ testplatform$(EXE): $(srcdir)/testplatform.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testsem$(EXE): $(srcdir)/testsem.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testsprite$(EXE): $(srcdir)/testsprite.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) @MATHLIB@ testtimer$(EXE): $(srcdir)/testtimer.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testver$(EXE): $(srcdir)/testver.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testvidinfo$(EXE): $(srcdir)/testvidinfo.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testwin$(EXE): $(srcdir)/testwin.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) testwm$(EXE): $(srcdir)/testwm.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) threadwin$(EXE): $(srcdir)/threadwin.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) torturethread$(EXE): $(srcdir)/torturethread.c $(CC) -o $@ $? $(CFLAGS) $(LIBS) clean: rm -f $(TARGETS) distclean: clean rm -f Makefile rm -f config.status config.cache config.log rm -rf $(srcdir)/autom4te*