| Commit message (Collapse) | Author | Age |
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Uses the GL_ARB_blend_func_extended to get single-pass, per-channel
alpha blending. gl_generator is now used instead of gl to enable the
extension.
The background color is removed since that presumably needs to run in a
separate pass.
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OpenGL only supports shared alpha blending. Subpixel font rendering
requires using the font RGB values as alpha masks for the corresponding
RGB channels. To support this, blending is implemented in the fragment
shader.
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The grid holds the state of the terminal with row-major ordering.
Eventually, the grid::Cell type will hold other attributes such as
color, background color, decorations, and weight.
An initialization list is added for common ASCII symbols.
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Adds a QuadRenderer class that actually only works with glyphs for now.
Manually place a few glyphs to demonstrate that it works.
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- Commend vertex slice
- Add helper for binding mask texture (and specify that it's a mask)
- Prefix uniform members of ShaderProgram with u_. This makes it easy to
identify in the rest of code.
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This letter brought to you by OpenGL and freetype.
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There are several assumptions made at this point and very little (no)
error handling done.
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This function isn't exactly useful, but it's working ffi with the
fontconfig library. Woo! Next step will be returning some objects with
more information (like font path so we can start rendering glyphs!).
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