[cogl] (36 commits) Created branch wip/rib/master-next

[Robert Bragg <rbragg src gnome org>]

The branch 'wip/rib/master-next' was created.

Summary of new commits:

  8774da4... framebuffer: Add explicit buffer discard API
  d444278... Rework how we search for winsys configs
  f7cbdb7... onscreen: Support point sample based onscreen rendering
  0e0388a... offscreen: Adds support for offscreen multisampling
  1a2d074... examples: Adds a simple 4x msaa example
  721c83d... framebuffer: Adds experimental _finish() API
  21e277c... path: handle slice tex fallback using clip stack
  fe4097f... clip-stack: Move path flushing code to cogl-clip-stack.c
  044ed65... clip: Adds cogl_clip_push_primitive API
  cf22759... texture-2d-sliced: make CoglTexture2DSliced public
  756232e... spans: only iterate spans within start-end range
  795b763... spans: remove unused intersect_start/end_local members
  47a44d4... primitives: make validate_first_layer_cb update override pi
  c1cd52a... pipeline-layer: fix win32 build issue
  a2fab99... Remove beneign GL_MESA_ycbcr_texture check
  2813589... make COGL_FEATURE_STENCIL_BUFFER private
  34732fc... make COGL_FEATURE_OFFSCREEN_BLIT a private feature
  5762eb1... make COGL_FEATURE_FOUR_CLIP_PLANES a private feature
  0625f44... make COGL_FEATURE_PBOS a private feature
  62869f3... make COGL_FEATURE_VBOS a private feature
  68ac5d8... features: Support more than 32 features!
  1e20f33... tests: ports test-wrap-modes.c to be standalone cogl test
  d3e1abb... texture-2d-sliced: simplify _foreach_sub_texture_in_region
  08530c9... meta-texture: This publicly exposes CoglMetaTexture
  67a012d... examples: Adds repeat-mode test
  761424c... Adds support for a mirrored repeat wrap mode
  c7f3178... tests: Adds a really simple cogl-info program
  fce80cc... build: removes unused variable i to avoid compiler warning
  cfc7792... framebuffer: split out CoglOnscreen code
  0b53d2f... Start to reduce dependence on glib
  0ec7fae... test-backface-culling: don't call _swap_buffers
  9c745a3... texture: Make CoglTextureRectangle experimentally public
  29b01eb... doc: Adds a cogl-texture-2d to the 2.0 reference manual
  b57dd39... framebuffer: adds cogl_framebuffer_get_point_samples_per_pi
  a04bfcd... matrix: init flags before tmp  _translate in _look_at
  886da15... matrix: check DIRTY_TYPE flag in _cogl_matrix_print