/**************************************************************************
*
* Copyright 2003 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
#include <stdio.h>
#include "i915_reg.h"
#include "i915_debug.h"
#include "main/imports.h"
static const char *opcodes[0x20] = {
"NOP",
"ADD",
"MOV",
"MUL",
"MAD",
"DP2ADD",
"DP3",
"DP4",
"FRC",
"RCP",
"RSQ",
"EXP",
"LOG",
"CMP",
"MIN",
"MAX",
"FLR",
"MOD",
"TRC",
"SGE",
"SLT",
"TEXLD",
"TEXLDP",
"TEXLDB",
"TEXKILL",
"DCL",
"0x1a",
"0x1b",
"0x1c",
"0x1d",
"0x1e",
"0x1f",
};
static const int args[0x20] = {
0, /* 0 nop */
2, /* 1 add */
1, /* 2 mov */
2, /* 3 m ul */
3, /* 4 mad */
3, /* 5 dp2add */
2, /* 6 dp3 */
2, /* 7 dp4 */
1, /* 8 frc */
1, /* 9 rcp */
1, /* a rsq */
1, /* b exp */
1, /* c log */
3, /* d cmp */
2, /* e min */
2, /* f max */
1, /* 10 flr */
1, /* 11 mod */
1, /* 12 trc */
2, /* 13 sge */
2, /* 14 slt */
1,
1,
1,
1,
0,
0,
0,
0,
0,
0,
0,
};
static const char *regname[0x8] = {
"R",
"T",
"CONST",
"S",
"OC",
"OD",
"U",
"UNKNOWN",
};
static void
print_reg_type_nr(GLuint type, GLuint nr)
{
switch (type) {
case REG_TYPE_T:
switch (nr) {
case T_DIFFUSE:
printf("T_DIFFUSE");
return;
case T_SPECULAR:
printf("T_SPECULAR");
return;
case T_FOG_W:
printf("T_FOG_W");
return;
default:
printf("T_TEX%d", nr);
return;
}
case REG_TYPE_OC:
if (nr == 0) {
printf("oC");
return;
}
break;
case REG_TYPE_OD:
if (nr == 0) {
printf("oD");
return;
}
break;
default:
break;
}
printf("%s[%d]", regname[type], nr);
}
#define REG_SWIZZLE_MASK 0x7777
#define REG_NEGATE_MASK 0x8888
#define REG_SWIZZLE_XYZW ((SRC_X << A2_SRC2_CHANNEL_X_SHIFT) | \
(SRC_Y << A2_SRC2_CHANNEL_Y_SHIFT) | \
(SRC_Z << A2_SRC2_CHANNEL_Z_SHIFT) | \
(SRC_W << A2_SRC2_CHANNEL_W_SHIFT))
static void
print_reg_neg_swizzle(GLuint reg)
{
int i;
if ((reg & REG_SWIZZLE_MASK) == REG_SWIZZLE_XYZW &&
(reg & REG_NEGATE_MASK) == 0)
return;
printf(".");
for (i = 3; i >= 0; i--) {
if (reg & (1 << ((i * 4) + 3)))
printf("-");
switch ((reg >> (i * 4)) & 0x7) {
case 0:
printf("x");
break;
case 1:
printf("y");
break;
case 2:
printf("z");
break;
case 3:
printf("w");
break;
case 4:
printf("0");
break;
case 5:
printf("1");
break;
default:
printf("?");
break;
}
}
}
static void
print_src_reg(GLuint dword)
{
GLuint nr = (dword >> A2_SRC2_NR_SHIFT) & REG_NR_MASK;
GLuint type = (dword >> A2_SRC2_TYPE_SHIFT) & REG_TYPE_MASK;
print_reg_type_nr(type, nr);
print_reg_neg_swizzle(dword);
}
static void
print_dest_reg(GLuint dword)
{
GLuint nr = (dword >> A0_DEST_NR_SHIFT) & REG_NR_MASK;
GLuint type = (dword >> A0_DEST_TYPE_SHIFT) & REG_TYPE_MASK;
print_reg_type_nr(type, nr);
if ((dword & A0_DEST_CHANNEL_ALL) == A0_DEST_CHANNEL_ALL)
return;
printf(".");
if (dword & A0_DEST_CHANNEL_X)
printf("x");
if (dword & A0_DEST_CHANNEL_Y)
printf("y");
if (dword & A0_DEST_CHANNEL_Z)
printf("z");
if (dword & A0_DEST_CHANNEL_W)
printf("w");
}
#define GET_SRC0_REG(r0, r1) ((r0<<14)|(r1>>A1_SRC0_CHANNEL_W_SHIFT))
#define GET_SRC1_REG(r0, r1) ((r0<<8)|(r1>>A2_SRC1_CHANNEL_W_SHIFT))
#define GET_SRC2_REG(r) (r)
static void
print_arith_op(GLuint opcode, const GLuint * program)
{
if (opcode != A0_NOP) {
print_dest_reg(program[0]);
if (program[0] & A0_DEST_SATURATE)
printf(" = SATURATE ");
else
printf(" = ");
}
printf("%s ", opcodes[opcode]);
print_src_reg(GET_SRC0_REG(program[0], program[1]));
if (args[opcode] == 1) {
printf("\n");
return;
}
printf(", ");
print_src_reg(GET_SRC1_REG(program[1], program[2]));
if (args[opcode] == 2) {
printf("\n");
return;
}
printf(", ");
print_src_reg(GET_SRC2_REG(program[2]));
printf("\n");
return;
}
static void
print_tex_op(GLuint opcode, const GLuint * program)
{
print_dest_reg(program[0] | A0_DEST_CHANNEL_ALL);
printf(" = ");
printf("%s ", opcodes[opcode]);
printf("S[%d],", program[0] & T0_SAMPLER_NR_MASK);
print_reg_type_nr((program[1] >> T1_ADDRESS_REG_TYPE_SHIFT) &
REG_TYPE_MASK,
(program[1] >> T1_ADDRESS_REG_NR_SHIFT) & REG_NR_MASK);
printf("\n");
}
static void
print_dcl_op(GLuint opcode, const GLuint * program)
{
printf("%s ", opcodes[opcode]);
print_dest_reg(program[0] | A0_DEST_CHANNEL_ALL);
printf("\n");
}
void
i915_disassemble_program(const GLuint * program, GLuint sz)
{
GLuint size = program[0] & 0x1ff;
GLint i;
printf("\t\tBEGIN\n");
assert(size + 2 == sz);
program++;
for (i = 1; i < sz; i += 3, program += 3) {
GLuint opcode = program[0] & (0x1f << 24);
printf("\t\t");
if ((GLint) opcode >= A0_NOP && opcode <= A0_SLT)
print_arith_op(opcode >> 24, program);
else if (opcode >= T0_TEXLD && opcode <= T0_TEXKILL)
print_tex_op(opcode >> 24, program);
else if (opcode == D0_DCL)
print_dcl_op(opcode >> 24, program);
else
printf("Unknown opcode 0x%x\n", opcode);
}
printf("\t\tEND\n\n");
}