diff options
author | Nicolai Hähnle <nhaehnle@gmail.com> | 2009-07-24 23:06:54 +0200 |
---|---|---|
committer | Nicolai Hähnle <nhaehnle@gmail.com> | 2009-07-27 22:51:36 +0200 |
commit | 9dc1be415828962f62d942bf9c362410347d1e75 (patch) | |
tree | 2000de507ce9f6fb844c289a1e54021b3db27e3e /src/mesa/drivers/dri/r300/compiler/radeon_compiler.c | |
parent | aab949cb9d62343303ab0836a84fe034244d1584 (diff) |
r300/compiler: Refactor fragment program fog rewrite to use rc_program
Signed-off-by: Nicolai Hähnle <nhaehnle@gmail.com>
Diffstat (limited to 'src/mesa/drivers/dri/r300/compiler/radeon_compiler.c')
-rw-r--r-- | src/mesa/drivers/dri/r300/compiler/radeon_compiler.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c b/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c index 684961021a..15823064f2 100644 --- a/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c +++ b/src/mesa/drivers/dri/r300/compiler/radeon_compiler.c @@ -24,6 +24,8 @@ #include <stdarg.h> +#include "radeon_program.h" + void rc_init(struct radeon_compiler * c) { @@ -88,3 +90,33 @@ void rc_error(struct radeon_compiler * c, const char * fmt, ...) va_end(ap); } } + +/** + * Rewrite the program such that everything that source the given input + * register will source new_input instead. + */ +void rc_move_input(struct radeon_compiler * c, unsigned input, struct prog_src_register new_input) +{ + struct rc_instruction * inst; + + c->Program.InputsRead &= ~(1 << input); + + for(inst = c->Program.Instructions.Next; inst != &c->Program.Instructions; inst = inst->Next) { + const unsigned numsrcs = _mesa_num_inst_src_regs(inst->I.Opcode); + unsigned i; + + for(i = 0; i < numsrcs; ++i) { + if (inst->I.SrcReg[i].File == PROGRAM_INPUT && inst->I.SrcReg[i].Index == input) { + inst->I.SrcReg[i].File = new_input.File; + inst->I.SrcReg[i].Index = new_input.Index; + inst->I.SrcReg[i].Swizzle = combine_swizzles(new_input.Swizzle, inst->I.SrcReg[i].Swizzle); + if (!inst->I.SrcReg[i].Abs) { + inst->I.SrcReg[i].Negate ^= new_input.Negate; + inst->I.SrcReg[i].Abs = new_input.Abs; + } + + c->Program.InputsRead |= 1 << new_input.Index; + } + } + } +} |