# HG changeset patch
# User John Tsiombikas <nuclear@member.fsf.org>
# Date 1334354051 -10800
# Node ID c27ce79632dbbdd8ede55c13b8f9549ed2f54797
# Parent  53aca477551441f4d0ef7e820bf7f79b1ed463d9
builds on osx with -spec unsupported/macx-clang
added a configure script to handle that qmake invocation

diff -r 53aca4775514 -r c27ce79632db configure
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/configure	Sat Apr 14 00:54:11 2012 +0300
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+sys=`uname -s`
+
+if [ "$sys" = Darwin ]; then
+	spec='-spec unsupported/macx-clang'
+fi
+
+qmake $spec
diff -r 53aca4775514 -r c27ce79632db qvolray.pro
--- a/qvolray.pro	Fri Apr 13 15:43:45 2012 +0300
+++ b/qvolray.pro	Sat Apr 14 00:54:11 2012 +0300
@@ -9,9 +9,18 @@
 	QMAKE_CXXFLAGS += -std=c++0x -pedantic
 }
 
+contains(QMAKE_CXX, clang++) {
+	QMAKE_CXXFLAGS += -std=c++0x -pedantic
+}
+
 unix:LIBS += -lGLEW -limago -lvmath
 win32:LIBS += -lglew32 -llibimago2 -llibvmath -llibpng -lzlib -ljpeglib
 
+macx {
+	INCLUDEPATH += /opt/local/include
+	QMAKE_LIBDIR += /opt/local/lib
+}
+
 # Input
 HEADERS += src/sdr.h src/volray.h src/volume.h src/ui.h
 SOURCES += src/main.cc src/sdr.c src/volray.cc src/volume.cc src/ui.cc src/demo.cc
diff -r 53aca4775514 -r c27ce79632db src/demo.cc
--- a/src/demo.cc	Fri Apr 13 15:43:45 2012 +0300
+++ b/src/demo.cc	Sat Apr 14 00:54:11 2012 +0300
@@ -1,3 +1,4 @@
+#include <assert.h>
 #include <GL/glew.h>
 #include "demo.h"
 #include "sdr.h"
@@ -19,18 +20,23 @@
 	vol->create(SZ, SZ, SZ);
 	volray_setvolume(vol);
 
-	glGenFramebuffers(1, &fbo);
-	glBindFramebuffer(GL_FRAMEBUFFER, fbo);
-	glFramebufferTexture3D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D,
+	assert(glGenFramebuffersEXT);
+	assert(glBindFramebufferEXT);
+	assert(glFramebufferTexture3DEXT);
+	assert(glCheckFramebufferStatusEXT);
+
+	glGenFramebuffersEXT(1, &fbo);
+	glBindFramebufferEXT(GL_FRAMEBUFFER, fbo);
+	glFramebufferTexture3DEXT(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D,
 			vol->get_texture(), 0, 0);
 
-	unsigned int stat = glCheckFramebufferStatus(GL_FRAMEBUFFER);
+	unsigned int stat = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER);
 	if(stat != GL_FRAMEBUFFER_COMPLETE) {
 		printf("incomplete framebuffer: %u\n", stat);
 		delete vol;
 		return false;
 	}
-	glBindFramebuffer(GL_FRAMEBUFFER, 0);
+	glBindFramebufferEXT(GL_FRAMEBUFFER, 0);
 
 	return true;
 }
@@ -44,11 +50,11 @@
 	glPushAttrib(GL_VIEWPORT_BIT);
 	glViewport(0, 0, SZ, SZ);
 
-	glBindFramebuffer(GL_FRAMEBUFFER, fbo);
+	glBindFramebufferEXT(GL_FRAMEBUFFER, fbo);
 	bind_program(sdr_mballs);
 
 	for(int i=0; i<SZ; i++) {
-		glFramebufferTexture3D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D,
+		glFramebufferTexture3DEXT(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_3D,
 				vol->get_texture(), 0, i);
 
 		float z = (float)i / (float)SZ;
@@ -66,7 +72,7 @@
 	}
 
 	bind_program(0);
-	glBindFramebuffer(GL_FRAMEBUFFER, 0);
+	glBindFramebufferEXT(GL_FRAMEBUFFER, 0);
 
 	glPopAttrib();
 }