geuz.org/gl2ps (#3352)

* new file:   projects/geuz.org/gl2ps/package.yml
new file:   projects/geuz.org/gl2ps/test_darwin.c
new file:   projects/geuz.org/gl2ps/test_linux.c

* wip

projects/geuz.org/gl2ps/package.yml

@@ -0,0 +1,41 @@
+distributable:
+  url: https://geuz.org/gl2ps/src/gl2ps-{{version}}.tgz
+  strip-components: 1
+versions:
+  url: https://geuz.org/gl2ps/src/
+  match: /gl2ps-\d+\.\d+\.\d+\.tgz/
+  strip:
+    - /^gl2ps-/
+    - /\.tgz/
+dependencies:
+  libpng.org: '*'
+  linux:
+    freeglut.sourceforge.io: '*'
+build:
+  dependencies:
+    tea.xyz/gx/cc: c99
+    tea.xyz/gx/make: '*'
+    cmake.org: '*'
+  script:
+    - cmake . $CMAKE_ARGS
+    - make --jobs {{ hw.concurrency }} install
+  env:
+    CMAKE_ARGS:
+      - -DCMAKE_INSTALL_PREFIX="{{prefix}}
+      - -DCMAKE_INSTALL_LIBDIR=lib
+      - -DCMAKE_BUILD_TYPE=Release
+      - -DCMAKE_FIND_FRAMEWORK=LAST
+      - -DCMAKE_VERBOSE_MAKEFILE=ON
+      - -Wno-dev
+      - -DBUILD_TESTING=OFF
+test:
+  dependencies:
+    tea.xyz/gx/cc: c99
+  script:
+    - run: cc -lgl2ps -framework OpenGL -framework GLUT -framework Cocoa test_darwin.c -o testfile
+      if: darwin
+    - run: cc -lgl2ps -lglut -lGL test_linux.c -o testfile
+      if: linux
+    # - ./testfile
+    # We cannot run ./testfile due to the absence of a display.
+    - ls . | grep testfile

projects/geuz.org/gl2ps/test_darwin.c

@@ -0,0 +1,28 @@
+#include <GLUT/glut.h>
+#include <gl2ps.h>
+
+int main(int argc, char *argv[])
+{
+    glutInit(&argc, argv);
+    glutInitDisplayMode(GLUT_DEPTH);
+    glutInitWindowSize(400, 400);
+    glutInitWindowPosition(100, 100);
+    glutCreateWindow(argv[0]);
+    GLint viewport[4];
+    glGetIntegerv(GL_VIEWPORT, viewport);
+    FILE *fp = fopen("test.eps", "wb");
+    GLint buffsize = 0, state = GL2PS_OVERFLOW;
+    while( state == GL2PS_OVERFLOW ){
+        buffsize += 1024*1024;
+        gl2psBeginPage ( "Test", "Tea", viewport,
+                        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, "test.eps" );
+        gl2psText("Tea Test", "Courier", 12);
+        state = gl2psEndPage();
+}
+fclose(fp);
+return 0;
+}

projects/geuz.org/gl2ps/test_linux.c

@@ -0,0 +1,28 @@
+#include <GL/glut.h>
+#include <gl2ps.h>
+
+int main(int argc, char *argv[])
+{
+    glutInit(&argc, argv);
+    glutInitDisplayMode(GLUT_DEPTH);
+    glutInitWindowSize(400, 400);
+    glutInitWindowPosition(100, 100);
+    glutCreateWindow(argv[0]);
+    GLint viewport[4];
+    glGetIntegerv(GL_VIEWPORT, viewport);
+    FILE *fp = fopen("test.eps", "wb");
+    GLint buffsize = 0, state = GL2PS_OVERFLOW;
+    while( state == GL2PS_OVERFLOW ){
+        buffsize += 1024*1024;
+        gl2psBeginPage ( "Test", "Tea", viewport,
+                        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, "test.eps" );
+        gl2psText("Tea Test", "Courier", 12);
+        state = gl2psEndPage();
+}
+fclose(fp);
+return 0;
+}