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r300/compiler: Add more helper functions for iterating through sources

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rc_for_all_reads_src() and rc_pair_for_all_reads_arg() pass references to
instruction sources to the callback so they can be modified directly.
This commit is contained in:
Tom Stellard
2010-09-23 21:15:06 -07:00
parent 34dba5f05a
commit 798355d429
2 changed files with 102 additions and 35 deletions
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src/mesa/drivers/dri/r300/compiler/radeon_dataflow.c
+90 -35
View File
@@ -29,49 +29,32 @@
#include "radeon_program.h"
struct read_write_mask_data {
void * UserData;
rc_read_write_mask_fn Cb;
};
static void reads_normal_callback(
rc_read_write_chan_fn cb,
void * userdata,
struct rc_instruction * fullinst,
struct rc_src_register src,
void * userdata)
struct rc_src_register * src)
{
struct read_write_mask_data * cb_data = userdata;
unsigned int refmask = 0;
unsigned int chan;
for(chan = 0; chan < 4; chan++) {
refmask |= 1 << GET_SWZ(src.Swizzle, chan);
refmask |= 1 << GET_SWZ(src->Swizzle, chan);
}
refmask &= RC_MASK_XYZW;
if (refmask)
cb(userdata, fullinst, src.File, src.Index, refmask);
if (refmask) {
cb_data->Cb(cb_data->UserData, fullinst, src->File,
src->Index, refmask);
}
if (refmask && src.RelAddr)
cb(userdata, fullinst, RC_FILE_ADDRESS, 0, RC_MASK_X);
}
static void reads_normal(struct rc_instruction * fullinst, rc_read_write_chan_fn cb, void * userdata)
{
struct rc_sub_instruction * inst = &fullinst->U.I;
const struct rc_opcode_info * opcode = rc_get_opcode_info(inst->Opcode);
for(unsigned int src = 0; src < opcode->NumSrcRegs; ++src) {
if (inst->SrcReg[src].File == RC_FILE_NONE)
return;
if (inst->SrcReg[src].File == RC_FILE_PRESUB) {
unsigned int i;
unsigned int srcp_regs = rc_presubtract_src_reg_count(
inst->PreSub.Opcode);
for( i = 0; i < srcp_regs; i++) {
reads_normal_callback(cb, fullinst,
inst->PreSub.SrcReg[i],
userdata);
}
} else {
reads_normal_callback(cb, fullinst,
inst->SrcReg[src], userdata);
}
if (refmask && src->RelAddr) {
cb_data->Cb(cb_data->UserData, fullinst, RC_FILE_ADDRESS, 0,
RC_MASK_X);
}
}
@@ -112,7 +95,7 @@ static void pair_get_src_refmasks(unsigned int * refmasks,
}
}
static void reads_pair(struct rc_instruction * fullinst, rc_read_write_mask_fn cb, void * userdata)
static void reads_pair(struct rc_instruction * fullinst, rc_read_write_mask_fn cb, void * userdata)
{
struct rc_pair_instruction * inst = &fullinst->U.P;
unsigned int refmasks[3] = { 0, 0, 0 };
@@ -143,6 +126,74 @@ static void reads_pair(struct rc_instruction * fullinst, rc_read_write_mask_fn
}
}
static void pair_sub_for_all_args(
struct rc_instruction * fullinst,
struct rc_pair_sub_instruction * sub,
rc_pair_read_arg_fn cb,
void * userdata)
{
int i;
const struct rc_opcode_info * info = rc_get_opcode_info(sub->Opcode);
for(i = 0; i < info->NumSrcRegs; i++) {
cb(userdata, fullinst, &sub->Arg[i]);
}
}
/* This function calls the callback function (cb) for each source used by
* the instruction.
* */
void rc_for_all_reads_src(
struct rc_instruction * inst,
rc_read_src_fn cb,
void * userdata)
{
const struct rc_opcode_info * opcode =
rc_get_opcode_info(inst->U.I.Opcode);
/* This function only works with normal instructions. */
if (inst->Type != RC_INSTRUCTION_NORMAL) {
assert(0);
return;
}
for(unsigned int src = 0; src < opcode->NumSrcRegs; ++src) {
if (inst->U.I.SrcReg[src].File == RC_FILE_NONE)
continue;
if (inst->U.I.SrcReg[src].File == RC_FILE_PRESUB) {
unsigned int i;
unsigned int srcp_regs = rc_presubtract_src_reg_count(
inst->U.I.PreSub.Opcode);
for( i = 0; i < srcp_regs; i++) {
cb(userdata, inst, &inst->U.I.PreSub.SrcReg[i]);
}
} else {
cb(userdata, inst, &inst->U.I.SrcReg[src]);
}
}
}
/**
* This function calls the callback function (cb) for each arg of the RGB and
* alpha components.
*/
void rc_pair_for_all_reads_arg(
struct rc_instruction * inst,
rc_pair_read_arg_fn cb,
void * userdata)
{
/* This function only works with pair instructions. */
if (inst->Type != RC_INSTRUCTION_PAIR) {
assert(0);
return;
}
pair_sub_for_all_args(inst, &inst->U.P.RGB, cb, userdata);
pair_sub_for_all_args(inst, &inst->U.P.Alpha, cb, userdata);
}
/**
* Calls a callback function for all register reads.
*
@@ -153,7 +204,11 @@ static void reads_pair(struct rc_instruction * fullinst, rc_read_write_mask_fn
void rc_for_all_reads_mask(struct rc_instruction * inst, rc_read_write_mask_fn cb, void * userdata)
{
if (inst->Type == RC_INSTRUCTION_NORMAL) {
reads_normal(inst, cb, userdata);
struct read_write_mask_data cb_data;
cb_data.UserData = userdata;
cb_data.Cb = cb;
rc_for_all_reads_src(inst, reads_normal_callback, &cb_data);
} else {
reads_pair(inst, cb, userdata);
}
src/mesa/drivers/dri/r300/compiler/radeon_dataflow.h
+12
View File
@@ -33,6 +33,8 @@
struct radeon_compiler;
struct rc_instruction;
struct rc_swizzle_caps;
struct rc_src_register;
struct rc_pair_instruction_arg;
/**
@@ -49,6 +51,16 @@ typedef void (*rc_read_write_mask_fn)(void * userdata, struct rc_instruction * i
void rc_for_all_reads_mask(struct rc_instruction * inst, rc_read_write_mask_fn cb, void * userdata);
void rc_for_all_writes_mask(struct rc_instruction * inst, rc_read_write_mask_fn cb, void * userdata);
typedef void (*rc_read_src_fn)(void * userdata, struct rc_instruction * inst,
struct rc_src_register * src);
void rc_for_all_reads_src(struct rc_instruction * inst, rc_read_src_fn cb,
void * userdata);
typedef void (*rc_pair_read_arg_fn)(void * userdata,
struct rc_instruction * inst, struct rc_pair_instruction_arg * arg);
void rc_pair_for_all_reads_arg(struct rc_instruction * inst,
rc_pair_read_arg_fn cb, void * userdata);
typedef void (*rc_remap_register_fn)(void * userdata, struct rc_instruction * inst,
rc_register_file * pfile, unsigned int * pindex);
void rc_remap_registers(struct rc_instruction * inst, rc_remap_register_fn cb, void * userdata);