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Graph Shader Simplification
- remove enable factor and 2nd 'discard' branch
- use build-in 'max'/'clamp' functions, supposed to be faster
Graph Shader 'a'/'b' redefined
- 'a' is 1-pass shader only
- 'b' is 2-pass incl. (1st pass + 2nd pass)
- Works well on ARM Mali-400 MP (Galaxy S2).
- Doesn't work on NV tegra2 (P1202: Texture's gl states do not match with shader's),
however 2-pass on mobile seems to be overkill for now.
We may create a workaround (switch shader ..).
GraphUI 2-pass demo;
- Propagate renderModes and texSize to UIShape's render(..)
- TODO: Remove GL dependency in UIShape, maybe use a callback or visitor model
- Adding GarpUI 2-pass launcher (Android and Standalone)
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disabled discard
- 1st pass (a) and 2nd pass (b), split at branch.
- all include are on one level.
- disabled discard, as it seems to be problematic
Todo:
- verify discard / pass-split on tegra2
- refect second pass usage (b) in implementation
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Add missing floating point precision qualifiers.
'#extension OES_standard_derivatives : require' somehow doesn't pass the GLSL compiler,
however '#extension GL_OES_standard_derivatives : enable' does.
Currently works on ARM's Mali-400 MP, NV Tegra still don't show a picture.
TODO: More in depth evaluation.
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Region/GLRegion, ..
GLSL fix:
- allowing #version tag
- add uniform textureSize (ES2)
- fix int/float conversion
Region/GLRegion:
- non OpenGL Region and GL related GLRegion split
Region/Renderer renderModes bits (def. in Region)
- user creates a Renderer* impl .. and derive Region*'s from outline,
possibly from a different code path.
- to avoid mode explosion, a bit field is being used for now
- Renderer: remove flushCache(), since non caching impl. is intended,
or caching by an external user transparent object.
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