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Diffstat (limited to 'src/glsl/TODO')
-rw-r--r-- | src/glsl/TODO | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/glsl/TODO b/src/glsl/TODO new file mode 100644 index 00000000000..07ac5f5c6e8 --- /dev/null +++ b/src/glsl/TODO @@ -0,0 +1,50 @@ +- Handle constant expressions of (struct == struct) + +- Handle constant expressions of (struct != struct) + +- Treat built-in functions with constant parameters as constant expressions. + - Rewrite all built-in functions return a single expression. + - Modify the HIR generator for functions to automatically inline built-in + functions durning translation. + - Care must be taken to handle both the 1.10 rules and the 1.20+ rules. In + 1.10, built-in functions cannot be constant expressions. + +- Detect code paths in non-void functions that don't reach a return statement + +- Handle over-riding built-in functions + - Is the overload per-compilation unit or per-linked shader? + +- Handle redeclaration of built-in variables + - Handle addition of qualifiers such as 'invariant' or 'centroid'. + - Handle resizing of arrays. + - Other? We'll have to look at the spec. + +- Improve handling of constants and their initializers. Constant initializers + should never generate any code. This is trival for scalar constants. It is + also trivial for arrays, matrices, and vectors that are accessed with + constant index values. For others it is more complicated. Perhaps these + cases should be silently converted to uniforms? + +1.30 features: + +- Implement AST-to-HIR conversion of bit-shift operators. + +- Implement AST-to-HIR conversion of bit-wise {&,|,^,!} operators. + +- Implement AST-to-HIR conversion of switch-statements + - switch + - case + - Update break to correcly handle mixed nexting of switch-statements + and loops. + +- Handle currently unsupported constant expression types + - ir_unop_bit_not + - ir_binop_mod + - ir_binop_lshift + - ir_binop_rshift + - ir_binop_bit_and + - ir_binop_bit_xor + - ir_binop_bit_or + +- Implement support for 1.30 style shadow compares which only return a float + instead of a vec4. |