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181bf92086
mutter/cogl
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Robert Bragg 181bf92086 [cogl] Use clockwise face winding for offscreen buffers with culling enabled 
Because Cogl defines the origin for texture as top left and offscreen draw
buffers can be used to render to textures, we (internally) force all
offscreen rendering to be upside down. (because OpenGL defines the origin
to be bottom left)

By forcing the users scene to be rendered upside down though we also reverse
the winding order of all the drawn triangles which may interfere with the
users use of backface culling.  This patch ensures that we reverse the
winding order for a front face (if culling is in use) while rendering
offscreen so we don't conflict with the users back face culling.
2009-11-04 03:34:03 +00:00
..
driver [draw-buffers] First pass at overhauling Cogl's framebuffer management 2009-11-03 17:23:03 +00:00
winsys build: Make COGL pass distcheck 2009-10-23 13:38:40 +01:00
cogl-bitmap-fallback.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-bitmap-pixbuf.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-bitmap-private.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-bitmap.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-bitmap.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-blend-string.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-blend-string.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-clip-stack.c [clip-stack] tidy up transform_point() code 2009-11-04 03:32:52 +00:00
cogl-clip-stack.h [draw-buffers] First pass at overhauling Cogl's framebuffer management 2009-11-03 17:23:03 +00:00
cogl-color.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-color.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-context.c [cogl] Use clockwise face winding for offscreen buffers with culling enabled 2009-11-04 03:34:03 +00:00
cogl-context.h [cogl] Use clockwise face winding for offscreen buffers with culling enabled 2009-11-04 03:34:03 +00:00
cogl-debug.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-debug.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-deprecated.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-draw-buffer-private.h [draw-buffer] Adds cogl_draw_buffer_get_{width,height} API 2009-11-04 03:23:20 +00:00
cogl-draw-buffer.c [draw-buffer] Adds cogl_draw_buffer_get_{width,height} API 2009-11-04 03:23:20 +00:00
cogl-enum-types.c.in Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-enum-types.h.in Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-fixed.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-fixed.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-handle.h [cogl-texture] Split CoglTexture into an abstract class + CoglTexture2dSliced 2009-10-16 18:58:51 +01:00
cogl-internal.h [cogl] Use clockwise face winding for offscreen buffers with culling enabled 2009-11-04 03:34:03 +00:00
cogl-journal-private.h [cogl-primitives] Split the journal out from cogl-primitives.c 2009-10-16 18:58:52 +01:00
cogl-journal.c [cogl] Use clockwise face winding for offscreen buffers with culling enabled 2009-11-04 03:34:03 +00:00
cogl-material-private.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-material.c [cogl] Removes the cogl-current-matrix abstraction 2009-10-20 12:32:50 +01:00
cogl-material.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-matrix-stack.c [cogl] Make sure we draw upside down to offscreen draw buffers 2009-11-04 03:23:19 +00:00
cogl-matrix-stack.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-matrix.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-matrix.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-offscreen.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-path.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-primitives.c [cogl] Use clockwise face winding for offscreen buffers with culling enabled 2009-11-04 03:34:03 +00:00
cogl-primitives.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-shader.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-spans.c [cogl-spans] split out cogl-spans code from cogl-texture-2d-sliced 2009-10-16 18:58:52 +01:00
cogl-spans.h [cogl-spans] split out cogl-spans code from cogl-texture-2d-sliced 2009-10-16 18:58:52 +01:00
cogl-texture-2d-sliced-private.h [cogl-spans] split out cogl-spans code from cogl-texture-2d-sliced 2009-10-16 18:58:52 +01:00
cogl-texture-2d-sliced.c [cogl-spans] split out cogl-spans code from cogl-texture-2d-sliced 2009-10-16 18:58:52 +01:00
cogl-texture-driver.h [cogl-texture] Split CoglTexture into an abstract class + CoglTexture2dSliced 2009-10-16 18:58:51 +01:00
cogl-texture-private.h [cogl-primitives] Split the journal out from cogl-primitives.c 2009-10-16 18:58:52 +01:00
cogl-texture.c [draw-buffers] First pass at overhauling Cogl's framebuffer management 2009-11-03 17:23:03 +00:00
cogl-texture.h [docs] switch gl_handle+gl_target docs for cogl_texture_new_from_foreign 2009-10-16 18:58:51 +01:00
cogl-types.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-util.c [cogl] Removes the cogl-current-matrix abstraction 2009-10-20 12:32:50 +01:00
cogl-util.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-vertex-buffer-private.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl-vertex-buffer.c [cogl] Use clockwise face winding for offscreen buffers with culling enabled 2009-11-04 03:34:03 +00:00
cogl-vertex-buffer.h Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
cogl.c [cogl] Use clockwise face winding for offscreen buffers with culling enabled 2009-11-04 03:34:03 +00:00
cogl.h.in [cogl] deprecate cogl_viewport() in favour of cogl_set_viewport() 2009-11-04 03:23:21 +00:00
cogl.pc.in Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00
Makefile.am [draw-buffers] First pass at overhauling Cogl's framebuffer management 2009-11-03 17:23:03 +00:00
stb_image.c Intial Re-layout of the Cogl source code and introduction of a Cogl Winsys 2009-10-16 18:58:50 +01:00