From 52880c011e5f794d58542c1231b59a7dffa97169 Mon Sep 17 00:00:00 2001
From: Christophe Geuzaine <cgeuzaine@ulg.ac.be>
Date: Sun, 9 May 2004 18:06:01 +0000
Subject: [PATCH] new option: GL2PS_NO_BLENDING
---
Makefile | 4 ++++
doc/Makefile | 10 +++++++---
doc/gl2ps.tex | 9 ++++++---
gl2ps.c | 16 ++++++++--------
gl2ps.h | 3 ++-
5 files changed, 27 insertions(+), 15 deletions(-)
diff --git a/Makefile b/Makefile
index 25e1b5c..d9b456b 100644
--- a/Makefile
+++ b/Makefile
@@ -20,6 +20,10 @@ clean:
rm -f *.tex *.ps *.eps *.eps.gz *.pdf *.o gl2psTest a.out *~
cd doc && ${MAKE} clean
+purge:
+ rm -f `find . -name "*~" -o -name "*~~" -o -name "\#*"\
+ -o -name ".\#*" -o -name "gmon.out"`
+
mac:
gcc -Wall -g -o gl2psTest gl2psTest.c gl2ps.c\
-framework OpenGL -framework GLUT -framework Cocoa
diff --git a/doc/Makefile b/doc/Makefile
index a93c38c..9dbd8e6 100644
--- a/doc/Makefile
+++ b/doc/Makefile
@@ -1,16 +1,20 @@
-default:
+default: gl2ps.ps gl2ps.html gl2ps.pdf
+
+gl2ps.ps: gl2ps.tex
+ rm -f gl2ps.toc gl2ps.out gl2ps.aux
latex gl2ps
latex gl2ps
latex gl2ps
dvips gl2ps -o
- make html
+
+gl2ps.pdf: gl2ps.tex
rm -f gl2ps.toc gl2ps.out gl2ps.aux
pdflatex gl2ps
pdflatex gl2ps
pdflatex gl2ps
-html:
+gl2ps.html: gl2ps.tex gl2ps.ps
rm -f gl2ps.html
echo "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0 Transitional//EN\">" >> gl2ps.html
echo "<html>" >> gl2ps.html
diff --git a/doc/gl2ps.tex b/doc/gl2ps.tex
index 5edbbc0..06f84ff 100644
--- a/doc/gl2ps.tex
+++ b/doc/gl2ps.tex
@@ -1,4 +1,4 @@
-% $Id: gl2ps.tex,v 1.169 2004-05-09 08:19:33 geuzaine Exp $
+% $Id: gl2ps.tex,v 1.170 2004-05-09 18:06:01 geuzaine Exp $
%
% GL2PS, an OpenGL to PostScript Printing Library
% Copyright (C) 1999-2004 Christophe Geuzaine <geuz@geuz.org>
@@ -229,6 +229,9 @@ determine the way primitives are handled:
the plotting of smooth shaded primitives but can lead to problems when
converting PostScript files into PDF files. See also options \dd{nr},
\dd{ng}, \dd{nb} below.
+\item[\dd{GL2PS_NO_BLENDING}] Blending (transparency) is disabled
+ alltogether (regardless of the current \dd{GL_BLEND} or \dd{GL2PS_BLEND}
+ status).
\item[\dd{GL2PS_OCCLUSION_CULL}] All the hidden polygons are removed from
the output, thus substantially reducing the size of the output file.
\item[\dd{GL2PS_USE_CURRENT_VIEWPORT}] The current OpenGL viewport is used
@@ -540,8 +543,8 @@ glGetIntegerv(GL_VIEWPORT, viewport);
while( state == GL2PS_OVERFLOW ){
buffsize += 1024*1024;
gl2psBeginPage ( "MyTitle", "MySoftware", viewport,
- GL2PS_EPS, GL2PS_BSP_SORT,
- GL2PS_SIMPLE_LINE_OFFSET | GL2PS_SILENT |
+ GL2PS_EPS, GL2PS_BSP_SORT, GL2PS_SILENT |
+ GL2PS_SIMPLE_LINE_OFFSET | GL2PS_NO_BLENDING |
GL2PS_OCCLUSION_CULL | GL2PS_BEST_ROOT,
GL_RGBA, 0, NULL, 0, 0, 0, buffsize,
fp, NULL );
diff --git a/gl2ps.c b/gl2ps.c
index a86e124..bd1eb18 100644
--- a/gl2ps.c
+++ b/gl2ps.c
@@ -1,4 +1,4 @@
-/* $Id: gl2ps.c,v 1.172 2004-05-09 16:35:27 geuzaine Exp $ */
+/* $Id: gl2ps.c,v 1.173 2004-05-09 18:06:01 geuzaine Exp $ */
/*
* GL2PS, an OpenGL to PostScript Printing Library
* Copyright (C) 1999-2004 Christophe Geuzaine <geuz@geuz.org>
@@ -687,7 +687,7 @@ static void gl2psAdaptVertexForBlending(GL2PSvertex *v)
if(!v || !gl2ps)
return;
- if(GL_FALSE == gl2ps->blending){
+ if(gl2ps->options & GL2PS_NO_BLENDING || !gl2ps->blending){
v->rgba[3] = 1.0F;
return;
}
@@ -4399,12 +4399,7 @@ GL2PSDLL_API GLint gl2psDrawPixels(GLsizei width, GLsizei height,
switch(format){
case GL_RGBA:
- if(GL_TRUE == glIsEnabled(GL_BLEND)){
- size = height * width * 4;
- prim->data.image->pixels = (GLfloat*)gl2psMalloc(size * sizeof(GLfloat));
- memcpy(prim->data.image->pixels, pixels, size * sizeof(GLfloat));
- }
- else{
+ if(gl2ps->options & GL2PS_NO_BLENDING || !gl2ps->blending){
/* special case: blending turned off */
prim->data.image->format = GL_RGB;
size = height * width * 3;
@@ -4416,6 +4411,11 @@ GL2PSDLL_API GLint gl2psDrawPixels(GLsizei width, GLsizei height,
++piv;
}
}
+ else{
+ size = height * width * 4;
+ prim->data.image->pixels = (GLfloat*)gl2psMalloc(size * sizeof(GLfloat));
+ memcpy(prim->data.image->pixels, pixels, size * sizeof(GLfloat));
+ }
break;
case GL_RGB:
default:
diff --git a/gl2ps.h b/gl2ps.h
index da014a6..a92bb1f 100644
--- a/gl2ps.h
+++ b/gl2ps.h
@@ -1,4 +1,4 @@
-/* $Id: gl2ps.h,v 1.86 2004-03-17 17:02:39 geuzaine Exp $ */
+/* $Id: gl2ps.h,v 1.87 2004-05-09 18:06:01 geuzaine Exp $ */
/*
* GL2PS, an OpenGL to PostScript Printing Library
* Copyright (C) 1999-2004 Christophe Geuzaine <geuz@geuz.org>
@@ -123,6 +123,7 @@
#define GL2PS_NO_PIXMAP (1<<8)
#define GL2PS_USE_CURRENT_VIEWPORT (1<<9)
#define GL2PS_COMPRESS (1<<10)
+#define GL2PS_NO_BLENDING (1<<11)
/* Arguments for gl2psEnable/gl2psDisable */
--
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