diff options
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_shader.cpp | 39 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_shader.h | 1 |
2 files changed, 40 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_shader.cpp b/src/mesa/drivers/dri/i965/brw_shader.cpp index c5a666cf2cc..807b81ddd1d 100644 --- a/src/mesa/drivers/dri/i965/brw_shader.cpp +++ b/src/mesa/drivers/dri/i965/brw_shader.cpp @@ -659,6 +659,45 @@ brw_negate_immediate(enum brw_reg_type type, struct brw_reg *reg) return false; } +bool +brw_abs_immediate(enum brw_reg_type type, struct brw_reg *reg) +{ + switch (type) { + case BRW_REGISTER_TYPE_D: + reg->dw1.d = abs(reg->dw1.d); + return true; + case BRW_REGISTER_TYPE_W: + reg->dw1.d = abs((int16_t)reg->dw1.ud); + return true; + case BRW_REGISTER_TYPE_F: + reg->dw1.f = fabsf(reg->dw1.f); + return true; + case BRW_REGISTER_TYPE_VF: + reg->dw1.ud &= ~0x80808080; + return true; + case BRW_REGISTER_TYPE_UB: + case BRW_REGISTER_TYPE_B: + unreachable("no UB/B immediates"); + case BRW_REGISTER_TYPE_UQ: + case BRW_REGISTER_TYPE_UD: + case BRW_REGISTER_TYPE_UW: + case BRW_REGISTER_TYPE_UV: + /* Presumably the absolute value modifier on an unsigned source is a + * nop, but it would be nice to confirm. + */ + assert(!"unimplemented: abs unsigned immediate"); + case BRW_REGISTER_TYPE_V: + assert(!"unimplemented: abs V immediate"); + case BRW_REGISTER_TYPE_Q: + assert(!"unimplemented: abs Q immediate"); + case BRW_REGISTER_TYPE_DF: + case BRW_REGISTER_TYPE_HF: + assert(!"unimplemented: abs DF/HF immediate"); + } + + return false; +} + backend_visitor::backend_visitor(struct brw_context *brw, struct gl_shader_program *shader_prog, struct gl_program *prog, diff --git a/src/mesa/drivers/dri/i965/brw_shader.h b/src/mesa/drivers/dri/i965/brw_shader.h index 2b9b72e3ece..5ad87d6278b 100644 --- a/src/mesa/drivers/dri/i965/brw_shader.h +++ b/src/mesa/drivers/dri/i965/brw_shader.h @@ -196,6 +196,7 @@ uint32_t brw_math_function(enum opcode op); const char *brw_instruction_name(enum opcode op); bool brw_saturate_immediate(enum brw_reg_type type, struct brw_reg *reg); bool brw_negate_immediate(enum brw_reg_type type, struct brw_reg *reg); +bool brw_abs_immediate(enum brw_reg_type type, struct brw_reg *reg); #ifdef __cplusplus extern "C" { |