Copyright (c) 1998,1999 Kenneth Albanowski. All rights reserved. Copyright (c) 2000 Ilya Zakharevich. All rights reserved. Copyright (c) 2007 Bob Free. All rights reserved. Copyright (c) 2009 Chris Marshall. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
Perl OpenGL: a.k.a. POGL
As of OpenGL-0.57 POGL now requires FreeGLUT (GLUT on Mac OS X) for full functionality:
http://freeglut.sourceforge.net/
This was due to licensing constraints and lack of window close events in GLUT. Efforts are being made to support the original GLUT with reduced functionality and limited to the common subset of operations.
NOTE: FreeGLUT distributions on Linux are deployed as libglut.so files, making it difficult to detect whether GLUT or FreeGLUT is installed. As such, FreeGLUT is assumed. See INSTALL for options to override this default.
NOTE: POGL automatically installs a binary FreeGLUT library on win32.
POGL provides access to most of the OpenGL 1.0, 1.1, and 1.2 APIs, and many OpenGL Extensions, such as Framebuffer Objects (FBOs) and Vertex Array Objects (VBOs).
Some amount of GLU is supported, and GLUT is completely supported up to API version 3, with some support for 4.0 and FreeGlut 2.4.0. A small portion of GLX and X11 may still be supported, but this is deprecated in favor of FreeGLUT and will be removed in the future. If you use this functionality, please let us know.
Compatibility notes with OpenGL 0.4:
The OpenGL 0.4 library, written by Stan Melax, contains more support for some SGI specific functions then 0.5, so you may wish to stay with 0.4 on an SGI system. For other machines, 0.5 should greatly improve compatibility (compiling where 0.4 wouldn't have).
Code-level compatibility with OpenGL 0.4 is available if you refer to OpenGL simply via 'use OpenGL;'. If you request specific packages (such as 'use OpenGL qw(glfunctions glconstants glutfunctions);'), you'll get 0.5 specific support. For more information, please read the OpenGL manual, available in OpenGL.pod.
Portions of this module that directly derive from Stan's code are marked with "Melax" comments, and his copyright is described in the COPYRIGHT file.
As this library is a simple binding between Perl and any library that complies with the OpenGL API, this module should interoperate seamlessly with any other modules that make use of OpenGL directly or (through another library) indirectly.
For build instructions, please see the INSTALL file.
For a brief description of what functions are supported, please read "SUPPORTS", and better yet read the two sample files, test.pl and isosurf.pl.
Thanks for help developing this module goes to Stan Melax, Cass Everitt, Alligator Descarte, and probably others that I've forgotten.
Happy Hacking,
Kenneth Albanowski <kjahds@kjahds.com>
As of April 13, 2007, Bob Free has assumed primary ownership of this module.
DOCUMENTATION AND INFO:
CPAN: http://search.cpan.org/~chm/ # for latest CPAN version
GIT: git clone git://pdl.git.sourceforge.net/gitroot/pdl/pogl
TARBALL: TBD
ZIP: TBD
PPM 5.6.x: TBD
PPM 5.8.x: TBD
Enjoy!
Bob "grafman" Free <grafman@graphcomp.com>
0.51: Portability enhancement (X and OS/2 PM), bug fixes, examples enhanced.
haveglp() should be used instead of haveglx to test for
presence of glp* functions.
Remap OpenGL 1.1 functions into GL_EXT_vertex_array interface
if needed.
0.52: More of the portability, bug fixes, and examples.
New option -steal for glpOpenWindow() to allow drawing into an
existing window (no "Visual" syncronization yet).
GL_EXT_vertex_array done on the level of cpp.
0.53: Correct vertex_array detection in isosample.pl.
Add more vertex_array constants (and move the definition earlier).
Exchange (default) arguments for glp: move display after window
(should not break old stuff, since there was/is no way to query
the display and window).
New function $d = glpDisplay() (croaks on failure).
Make glpOpenWindow() return the window handle.
New functions with signatures
void glpMoveResizeWindow(int x, int y, unsigned int width, unsigned int height, Window w, Display display); void glpMoveWindow(int x, int y, Window w, Display display); void glpResizeWindow(unsigned int width, unsigned int height, Window w, Display display);
(w and display are optional).
0.54: Martien Verbruggen fixed another Mesa limitation.
#ifdef out unglob'ing: symbol not found on Solaris...
0.55: Bob "grafman" Free <grafman@graphcomp.com>
Added OpenGL::Array->new_list
Added OpenGL::Array->elements
Added macro abstraction for wgl extensions
Implemented GL_ARB_depth_texture
Implemented GL_ARB_draw_buffers
Implemented GL_ARB_fragment_program
Implemented GL_ARB_fragment_program_shadow
Implemented GL_ARB_half_float_pixel
Implemented GL_ARB_multitexture
Implemented GL_ARB_pixel_buffer_object
Implemented GL_ARB_point_sprite
Implemented GL_ARB_shadow
Implemented GL_ARB_texture_border_clamp
Implemented GL_ARB_texture_cube_map
Implemented GL_ARB_texture_env_add
Implemented GL_ARB_texture_float
Implemented GL_ARB_texture_mirrored_repeat
Implemented GL_ARB_texture_non_power_of_two
Implemented GL_ARB_texture_rectangle
Implemented GL_ARB_vertex_buffer_object
Implemented GL_ARB_vertex_program
Implemented GL_ATI_texture_float
Implemented GL_ATI_texture_mirror_once
Implemented GL_EXT_bgra
Implemented GL_EXT_copy_texture
Implemented GL_EXT_framebuffer_object
Implemented GL_EXT_packed_pixels
Implemented GL_EXT_pixel_buffer_object
Implemented GL_EXT_rescale_normal
Implemented GL_EXT_separate_specular_color
Implemented GL_EXT_shadow_funcs
Implemented GL_EXT_stencil_wrap
Implemented GL_EXT_subtexture
Implemented GL_EXT_textureD3
Implemented GL_EXT_texture_env_dot3
Implemented GL_EXT_texture_filter_anisotropic
Implemented GL_EXT_texture_lod_bias
implemented GL_EXT_texture_mirror_clamp
implemented GL_EXT_vertex_array
Implemented GL_HP_occlusion_test
Implemented GL_IBM_rasterpos_clip
Implemented GL_NV_blend_square
Implemented GL_NV_copy_depth_to_color
Implemented GL_NV_depth_clamp
Implemented GL_NV_fog_distance
Implemented GL_NV_fragment_program2
Implemented GL_NV_fragment_program_option
Implemented GL_NV_light_max_exponent
Implemented GL_NV_packed_depth_stencil
Implemented GL_NV_texgen_reflection
Implemented GL_NV_texture_expand_normal
Implemented GL_NV_texture_rectangle
Implemented GL_NV_vertex_program2_option
Implemented GL_NV_vertex_program3
Implemented GL_S3_s3tc
Implemented GL_SGIS_generate_mipmap
Implemented GL_SGIS_texture_lod
Implemented GL_SGIX_depth_texture
Implemented GL_SGIX_shadow
Implemented GL_SUN_slice_accum
Added glDrawRangeElements_p
Added glColorPointer_p
Added glEdgeFlagPointer_p
Added glIndexPointer_p
Added glNormalPointer_p
Added glTexCoordPointer_p
Added glVertexPointer_p
Added 'include' folder for updated GL header files
Added 'utils' folder for header processing scripts
Added glversion utility to enhance Makefile.PL
Fixed compiler warnings in gl_util.c and OpenGL.xs
Fixed glPolygonOffsetEXT bias mapping
Fixed glDrawRangeElements_s code
Fixed glGetPointerv_c params pointer
Moved obsolete/deprecated extensions
Added $glext_implemented hashref of implemented GL extensions
Added glpCheckExtension
Updated test.pl
Ilya Zakharevich
Updated support for SunRay
Sherm Pendley
Added MacOSX support
Daiki Nomura
Helped add FreeBSD support
0.56: Bob "grafman" Free <grafman@graphcomp.com>
Added $BUILD_VERSION
Updated OpenGL::Array->new
Added OpenGL::Array->length
Added OpenGL::Array->bind
Added OpenGL::Array->bound
Added OpenGL::Array->new_scalar
Added OpenGL::Array->new_pointer
Added OpenGL::Array->update_pointer
Updated OpenGL::Array->retrieve
Updated OpenGL::Array->retrieve_data
Added glVertexPointer_s
Added glNormalPointer_s
Added glColorPointer_s
Added glIndexPointer_s
Added glTexCoordPointer_s
Added glEdgeFlagPointer_s
Added glVertexPointerEXT_s
Added glNormalPointerEXT_s
Added glColorPointerEXT_s
Added glIndexPointerEXT_s
Added glTexCoordPointerEXT_s
Added glEdgeFlagPointerEXT_s
Added gluBuild1DMipmaps_c
Added gluBuild2DMipmaps_c
Added OpenGL::Image support to test.pl
Updated typemap to add GLcharARB and GLhandleARB
Implemented GL_EXT_texture_cube_map
Implemented GL_ARB_shader_objects
Implemented GL_ARB_fragment_shader
Implemented GL_ARB_vertex_shader
Implemented GL_ARB_shading_language_100
Implemented GL_EXT_Cg_shader
Updated test.pl to use OpenGL::Image and OpenGL::Shader
Geoffrey Broadwell
Fixed a bug in gl_pixelbuffer_size
0.57: Bob "grafman" Free <grafman@graphcomp.com>
Updated test.pl to fix fullscreen handling
Fixed OpenGL.pod to reflect correct module name
Added FBO constants to param enums in gl_util.c
Implemented GL_ARB_point_parameters
Implemented GL_ARB_multisample
Implemented GL_ARB_color_buffer_float
Added OGA calc and affine functions
Added glpHasGPGPU
Added an ATI workaround for GL_ARB_shading_language_100 dependencies
Added VBO and FBO caching in OGAs - gl_util.h
Fixed gluProject and gluUnProject - was converting matrices to ints
Added glutSpecialUpFunc and glutWindowStatusFunc
Added dist option to Makefile.PL to support binary distributions
Switched from GLUT to FreeGLUT
Added FreeGLUT folder for Win32 DLLs
Implemented glutSetOption
Implemented glutGameModeString
Implemented glutEnterGameMode
Implemented glutLeaveGameMode
Implemented glutGameModeGet
Added glpFullScreen and glpRestoreScreen
Updated test.pl to support Game Mode
Implemented glutCloseFunc
Implemented glutLeaveMainLoop
Major refactoring of Makefile.PL
Renamed WGL interface option to W32API
Added help message to Makefile.PL
Added verbose option to Makefile.PL
Added documentation comments to OpenGL.xs
Added glpHasGLUT
Updated test.pl to run texhack if no GLUT
Added a countdown timer to examples/texhack
Fixed GLXBYTES in assign
Fixed vertex.glsl to work on newer nvidia cards
Implemented glutIgnoreKeyRepeat
Implemented glutSetKeyRepeat
Implemented glutForceJoystickFunc
Added FreeGLUT support for cygwin builds
Fixed builds for Apple's recent Mac OS changes
Added README for building on Mac OS
Chris Marshall
Added support for building POGL within cygwin
Added Config.pm support
Sisyphus
Added partial support for MinGW/dmake - not yet fully functional
Added "clean" target to Makefile.PL
Alex Dodge
Added glutKeyboardUpFunc
0.58+: See GIT_CHANGES file in CPAN releases or use git log --stat on
a git repository