search for: is_precise

.../state_tracker/st_glsl_to_tgsi.cpp index c5d2e0fcd2..19f90f21fe 100644 --- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp +++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp @@ -87,6 +87,13 @@ static int swizzle_for_type(const glsl_type *type, int component = 0) return swizzle; } +static unsigned is_precise(const ir_variable *ir) +{ + if (!ir) + return 0; + return ir->data.precise || ir->data.invariant; +} + /** * This struct is a corresponding struct to TGSI ureg_src. */ @@ -296,6 +303,7 @@ public: ir_instruction *ir; unsigned op:8; /**< TGSI opcode */ + unsigned pr...

Running Tomb Raider on Nouveau I found some flicker caused by ignoring precise modifiers on variables inside Nouveau. This series add precise/invariant handling to TGSI, which can be then used by drivers to disable certain unsafe optimisations which may otherwise alter calculations, which depend on having the same result across shaders. This series fixes this bug in Tomb Raider and one CTS test