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Diffstat (limited to 'docs/relnotes/6.3')
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diff --git a/docs/relnotes/6.3 b/docs/relnotes/6.3 new file mode 100644 index 00000000000..6b4dfaaf9a3 --- /dev/null +++ b/docs/relnotes/6.3 @@ -0,0 +1,114 @@ + + Mesa 6.3 release notes + + July 20, 2005 + + PLEASE READ!!!! + + + +Introduction +------------ + +Mesa uses an even/odd version number scheme like the Linux kernel. +Odd numbered versions (such as 6.3) designate new developmental releases. +Even numbered versions (such as 6.2) designate stable releases. + + + +New Features +------------ + +GL_ARB_draw_buffers - allows a fragment program to write to a number of + separate color buffers, instead of just one. + +GL_OES_read_format - allows one to query the fastest glReadPixels format + and datatype. + +GL_ARB_pixel_buffer_object - buffer objects for pixel read/write functions. + +GL_EXT_framebuffer_object - allows render-to-texture and provides a + window-system indepedent Pbuffer facility. + The Mesa CVS tree contains a couple tests of this extension. + +DirectFB driver, contributed by Claudio Ciccani. See docs/README.directfb +for details. + + + +Vertex/Fragment Program PRINT Instruction +----------------------------------------- + +The GL_NV_vertex_program and GL_NV_fragment_program languages have been +extended with a PRINT instruction. + + + +glDeleteTextures(), glDeletePrograms() and glDeleteBuffers() Changed +-------------------------------------------------------------------- + +To match the behaviour of other OpenGL implementations, glDeleteTextures, +glDeletePrograms and glDeleteBuffers have been modified so that: + + * The named texture/program/buffer ID is immediately freed for re-use. + + * The actual texture object, program or buffers isn't really deleted until + it is no longer bound in any rendering context (the reference count + is zero). + +Previously, the texture/program/buffer ID wasn't freed until the object +was really deleted. + +Note that textures, programs and buffers can be shared by several rendering +contexts so they can't be deleted until they're unbound in _all_ contexts. + + + +GL_EXT_framebuffer_object changes +--------------------------------- + +Implementing this extension involved changing a lot of code (for the better). + +The gl_framebuffer object now a collection of gl_renderbuffer objects. +Renderbuffers may store colors, stencil indices, or depth values. The +gl_framebuffer and gl_renderbuffer types are object-oriented in design. + +All the old RGB, color index, stencil and depth-related span functions for +reading/writing pixels from/to buffers has changed. Now, all pixels are +read/written through a set of common renderbuffer functions (methods). + +Most device drivers have been updated for these changes, but some haven't. + + + +To Do (someday) items +--------------------- + Switch to freeglut + Increase MAX_DRAWBUFFERS + driver hooks for BeginQuery/EndQuery + + + +Miscellaneous +------------- + +The main/get.c file is now generated with a Python script (get_gen.py). + + + +Driver Status +---------------------- --------------------- +XMesa (Xlib) implements OpenGL 1.5 +OSMesa (off-screen) implements OpenGL 1.5 +Glide (3dfx Voodoo1/2) implements OpenGL 1.3 +SVGA implements OpenGL 1.3 +Wind River UGL implements OpenGL 1.3 +Windows/Win32 implements OpenGL 1.5 +DJGPP implements OpenGL 1.5 +GGI implements OpenGL 1.3 +BeOS implements OpenGL 1.5 +Allegro needs updating +D3D needs updating + + +---------------------------------------------------------------------- |