Version history

Current Version

• Improve glGetError() handling

v1.1.4

• Fixed some regression, and foobillard++ is working fine now
• Set default GL version to 2.1 (instead of 2.0) for GLES2.0 backend
• Added ARB_vertex_program and ARB_fragment_program
• Improved fpe with more compatibility fixes
• Improved Handling of DXTc textures
• Improve handling of partially mipmap’d textures
• Added PYRA Profile
• Added support for Texture LOD access in Fragment Shaders
• Increased maximum Texture Unit support to 16 (from 8)
• Added support for program without Vertex Shader
• Some fixes for program that switch GLX Context frequently.
• Fixes and improvements in fpe_shaders (less array access)
• Added support for Clipping Plane in custom shaders (help OpenMW water reflection)
• Added support for multiple FBO attachement (if hardware support it)

v1.1.2

• Improved a bit the merger (wich merge subsequent glBegin(...)/glEnd()) efficiency
• Removed LIBGL_BEGINEND=2 (that was not working correctly, and it complexify the code too much)
• Added some Direct Access function (from EXT_direct_access)
• Fixes and Improvements on depth (and depth_Stencil) Texture handling
• Handling of GL_BGRA color size in VA (for HumandRessourceMachine)
• Some fixes to fpe_shader (for Neverwinter Night)
• Rework of Header structure (from @rajdakin)
• Better test, using “make test” (from @rajdakin, still using apitrace for replay)
• Added PSA: Precompiled Shader Archive, to store (and fast retrieve) FPE shader (and avoid some pauses when complex FPE shaders are computed)
• Numerous optimization and changes in Batch mode.
• Fixes to GL_BGRA handling
• Improvement in texture format handling, to limit number of conversions
• Added handling of VBO. Real VBO are used (in GLES2+ only) for GL_ARRAY_BUFFER and GL_ELEMENT_ARRAY_BUFFER
• Added VBO when processing glList (only in GLES2+)
• Added a few more GL3.x functions (like glTexStorage). No real GL3.0 support yet
• Can now use GBM/DRM, using LIBGL_FB=4. Still WIP, but now it start to work (thanks to @icecream95)
• Preliminary Emscripten support (thanks to @CecilHarvey)
• AmigaOS4 support is now live (thanks to @kas1e)
• Some fixes to texture handling, when uploading (or modifying) a texture in a multi-texture context
• Small optimization some of the FPE Generated program (many fragment shaders that do texturing)
• Added support to glGetProgramBinary extension
• GL4ES has a logo now :) !
• AmigaOS4 is now fully supported! And SDK (with libs and samples) is available on os4depot
• Emscripten is now supported! A first example of a game using gl4es in a web build can be found here with Stunt Car Remake

v1.1.0

• Default backend is now GLES2 (but not on Pandora, still GLES1.1 for compatibility reasons)
• Added LIBGL_SHADERNOGLES to remove the GLES part of shaders (if any).
• Various RPi improvements, mainly in the context creation.
• Various AmigaOS4 improvement and workaround (but still in a beta state)
• Various improvement in GLX function, with a more accurate way to emulate GLXFBConfig
• Improved the way eglSurface are created in glx.c, to avoid try to create 2 on the same window (EGL doesn’t allow that)
• Added LIBGL_GLXRECYCLE to not delete eglSurface and recycle them
• Added tracking of Framebuffers Object and Renderbuffers Objects
• Added (real) support for Float and Half-float Texture (including has attachement to FBO, emulating it if not supported in Hardware)
• Added support for Depth Stencil texture when attached to an FBO
• Added LIBGL_FBO=WxH for all platform
• Fixed some issue when resized textures attached to an FBO
• Added LIBGL_NODEPTHTEX to avoid using Depth Texture when available (using renderbuffer can be faster)
• Added support for Depth Texture when attached to an FBO (if supported by Hardware)
• Fixes some isue with blitting of FBO when size of Main Framebuffer changed
• Added option LIBGL_LOGSHADERERROR to get Shader compiler log and error
• Added support for (emulated) Hardware Instancing
• Added support for GL_ARB_draw_elements_base_vertex

v1.0.8

• Fixes and improvments to avoid unnecessary GLES state changes
• Fixes some memory issues with glBitmap
• Fixes to FPE (when using multitexture and GL_COMBINE)
• Added some TexEnv extension for GLES2 backend
• Fixes to Batch / Merger on GL_POLYGON primitives
• Fixes to LineStipple
• Pandora only: Fixed use of Texture Streaming on GLES2 backend

v1.0.6

• Factorised “Blit” function, and implemented glBlitFramebuffer
• Optimized glBitmap
• Added (limited) direct support to GL_UNSIGNED_INT for glDrawElements for hardware that support it
• Improved (a lot) glBegin/glEnd merger
• Added Anisotropic filtering support, for hardware that support it.
• Changed LIBGL_BATCH. It will now try to merge small (parametrable) subsequent glDrawXXXX
• Changed (simplified) the way texture “0” is handled
• Improvement to glDrawArrays and glDrawElement, with less copy of data
• WIP AmigaOS4 support (and BigEndian architecture)
• Improved NPOT support for “Limited NPOT” hardware
• Lots of FPE fixes
• Improve the way multi glX Context are handled
• Added basic pre-proc (only handle comments for now)
• Small optimization on when using glDrawArrays with GL_QUADS
• Improvement to GL_RENDER
• Improvement to line stipple
• Improvement to glPolygonMode(GL_LINE)

v1.0.4

• FPE is now usable. Most function are implemented
• ShaderConv in now usable. Basic GL 2 shader are supported
• Refactored Texture cache and handling, for better Tex1D/Tex3D/TexRectangle handling

v1.0.2

• Added GLES2 backend infrastructure
• Begin GLES2 backend
• Infrastructure for FPE (Fixed Pipeline Emulator)
• Basic and Crude Shader convertor
• Added blit function for GLES2 backend
• Added some OpenGL Builtin VAs and Uniforms

1.0.0

• Removed old ES2 defines (ES2 will be dynamic later)

0.9.8

• Added TravisCI build on github
• Added some optimization when to discard call to glBindTexture if useless (same texture) between 2 glBegin/glEnd blocks
• Stubbed glGet with GL_DRAW_BUFFER
• Improvement to Raster operations
• Factorised Blit function (only 1 function for that now)
• Tracking ShadeModel
• Tracking TexEnv

0.9.7

• Tracking Clip Planes
• Refactor Blitting function, and use glDrawTex extension if present
• Restructured README and split in several files
• Some improvments and fixes to LIBGL_BEGINEND=2 mode
• Some improvments to some LIBGL_SHRINK mode
• Proper support for DOT3 extension
• Some fixes to Read/Draw Buffer handling
• Some fix with the PixMap glX context creation

0.9.6

• Some fixes in GL_TEXTURE_RECTANGLE_ARB handling
• Some other fixes in texture handling (unpack and glList related)
• Some fix with the PBuffer glX context creation
• Tracking of glFog
• Exposed glBlendEquation if supported
• New LIBGL_AVOID16BITS parameter to prefer 32bits texture (useful on ODroid)
• Some optimisations in texture conversion

0.9.5

• Added some optimizations for sequential glBegin/glEnd blocks, with a switch to control them
• Fixed many issue with Lights introduced with 0.9.4
• Fixed Android build introduced with 0.9.4

0.9.4

• Fixed some extended functions (like glBlendFuncSeparate) not working inside list (fixing some issues with Batch mode)
• Added back GL_TEXTURE_RECTANGLE_ARB handling (and using npot texture, even limited, if available)
• Added tracking of Lights and Materials
• Fixed (Added in fact) support for Multisampling on the GLX Context creation (a bit hacky, but seems to works)
• Added LIBGL_NODOWNSAMPLING and associated Hint
• Try to implement some caching on VAO to avoid some memcpy in renderlist (with a way to disable it just in case)

0.9.3

• Added support for Cube Mapping (with hardware support)
• Improved Texture state tracking
• Added LIBGL_NOTEXMAT env. var. switch for Texture Matrix handling
• Added GL_EXT_vertex_array_bgra (and NEONinzed some loop)
• Finished GL_EXT_direct_state_access extension
• Mangled glX function (to be able to use apitrace to capture GL frames)
• Return some values in glXQueryServerString, coherent with glXGetClientString

0.9.2

• All matrix are tracked now
• Texture Matrix are 100% handled by gl4es. GLES Hardware keep an Identity matrix (TexCoord are transformed if needed). This allows a better handling of NPOT texture on hardware that doesn’t support Full NPOT (fixed movies being horizontally shifted in openmw with LIBGL_NPOT=1 for example)

0.9.1

• Added gl4es specifics glHint capabilities. If the extension GL_GL4ES_hint is present, than a few Hint are accessible. Look in include/gl4eshint.h for the list.

0.9.0

• New name: gl4es