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