/*
* Copyright 2008 Corbin Simpson <MostAwesomeDude@gmail.com>
*
* 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, sublicense, 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 NONINFRINGEMENT.
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) 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 "r500_fragprog.h"
#include "../r300_reg.h"
static struct prog_src_register shadow_ambient(struct radeon_compiler * c, int tmu)
{
struct prog_src_register reg = { 0, };
reg.File = PROGRAM_STATE_VAR;
reg.Index = rc_constants_add_state(&c->Program.Constants, RC_STATE_SHADOW_AMBIENT, tmu);
reg.Swizzle = SWIZZLE_WWWW;
return reg;
}
/**
* Transform TEX, TXP, TXB, and KIL instructions in the following way:
* - implement texture compare (shadow extensions)
* - extract non-native source / destination operands
*/
GLboolean r500_transform_TEX(
struct radeon_compiler * c,
struct rc_instruction * inst,
void* data)
{
struct r300_fragment_program_compiler *compiler =
(struct r300_fragment_program_compiler*)data;
if (inst->I.Opcode != OPCODE_TEX &&
inst->I.Opcode != OPCODE_TXB &&
inst->I.Opcode != OPCODE_TXP &&
inst->I.Opcode != OPCODE_KIL)
return GL_FALSE;
/* ARB_shadow & EXT_shadow_funcs */
if (inst->I.Opcode != OPCODE_KIL &&
c->Program.ShadowSamplers & (1 << inst->I.TexSrcUnit)) {
GLuint comparefunc = GL_NEVER + compiler->state.unit[inst->I.TexSrcUnit].texture_compare_func;
if (comparefunc == GL_NEVER || comparefunc == GL_ALWAYS) {
inst->I.Opcode = OPCODE_MOV;
if (comparefunc == GL_ALWAYS) {
inst->I.SrcReg[0].File = PROGRAM_BUILTIN;
inst->I.SrcReg[0].Swizzle = SWIZZLE_1111;
} else {
inst->I.SrcReg[0] = shadow_ambient(c, inst->I.TexSrcUnit);
}
return GL_TRUE;
} else {
GLuint comparefunc = GL_NEVER + compiler->state.unit[inst->I.TexSrcUnit].texture_compare_func;
GLuint depthmode = compiler->state.unit[inst->I.TexSrcUnit].depth_texture_mode;
struct rc_instruction * inst_rcp = rc_insert_new_instruction(c, inst);
struct rc_instruction * inst_mad = rc_insert_new_instruction(c, inst_rcp);
struct rc_instruction * inst_cmp = rc_insert_new_instruction(c, inst_mad);
int pass, fail;
inst_rcp->I.Opcode = OPCODE_RCP;
inst_rcp->I.DstReg.File = PROGRAM_TEMPORARY;
inst_rcp->I.DstReg.Index = rc_find_free_temporary(c);
inst_rcp->I.DstReg.WriteMask = WRITEMASK_W;
inst_rcp->I.SrcReg[0] = inst->I.SrcReg[0];
inst_rcp->I.SrcReg[0].Swizzle = SWIZZLE_WWWW;
inst_cmp->I.DstReg = inst->I.DstReg;
inst->I.DstReg.File = PROGRAM_TEMPORARY;
inst->I.DstReg.Index = rc_find_free_temporary(c);
inst->I.DstReg.WriteMask = WRITEMASK_XYZW;
inst_mad->I.Opcode = OPCODE_MAD;
inst_mad->I.DstReg.File = PROGRAM_TEMPORARY;
inst_mad->I.DstReg.Index = rc_find_free_temporary(c);
inst_mad->I.SrcReg[0] = inst->I.SrcReg[0];
inst_mad->I.SrcReg[0].Swizzle = SWIZZLE_ZZZZ;
inst_mad->I.SrcReg[1].File = PROGRAM_TEMPORARY;
inst_mad->I.SrcReg[1].Index = inst_rcp->I.DstReg.Index;
inst_mad->I.SrcReg[1].Swizzle = SWIZZLE_WWWW;
inst_mad->I.SrcReg[2].File = PROGRAM_TEMPORARY;
inst_mad->I.SrcReg[2].Index = inst->I.DstReg.Index;
if (depthmode == 0) /* GL_LUMINANCE */
inst_mad->I.SrcReg[2].Swizzle = MAKE_SWIZZLE4(SWIZZLE_X, SWIZZLE_Y, SWIZZLE_Z, SWIZZLE_Z);
else if (depthmode == 2) /* GL_ALPHA */
inst_mad->I.SrcReg[2].Swizzle = SWIZZLE_WWWW;
/* Recall that SrcReg[0] is tex, SrcReg[2] is r and:
* r < tex <=> -tex+r < 0
* r >= tex <=> not (-tex+r < 0 */
if (comparefunc == GL_LESS || comparefunc == GL_GEQUAL)
inst_mad->I.SrcReg[2].Negate = inst_mad->I.SrcReg[2].Negate ^ NEGATE_XYZW;
else
inst_mad->I.SrcReg[0].Negate = inst_mad->I.SrcReg[0].Negate ^ NEGATE_XYZW;
inst_cmp->I.Opcode = OPCODE_CMP;
/* DstReg has been filled out above */
inst_cmp->I.SrcReg[0].File = PROGRAM_TEMPORARY;
inst_cmp->I.SrcReg[0].Index = inst_mad->I.DstReg.Index;
if (comparefunc == GL_LESS || comparefunc == GL_GREATER) {
pass = 1;
fail = 2;
} else {
pass = 2;
fail = 1;
}
inst_cmp->I.SrcReg[pass].File = PROGRAM_BUILTIN;
inst_cmp->I.SrcReg[pass].Swizzle = SWIZZLE_1111;
inst_cmp->I.SrcReg[fail] = shadow_ambient(c, inst->I.TexSrcUnit);
}
}
/* Cannot write texture to output registers */
if (inst->I.Opcode != OPCODE_KIL && inst->I.DstReg.File != PROGRAM_TEMPORARY) {
struct rc_instruction * inst_mov = rc_insert_new_instruction(c, inst);
inst_mov->I.Opcode = OPCODE_MOV;
inst_mov->I.DstReg = inst->I.DstReg;
inst_mov->I.SrcReg[0].File = PROGRAM_TEMPORARY;
inst_mov->I.SrcReg[0].Index = rc_find_free_temporary(c);
inst->I.DstReg.File = PROGRAM_TEMPORARY;
inst->I.DstReg.Index = inst_mov->I.SrcReg[0].Index;
inst->I.DstReg.WriteMask = WRITEMASK_XYZW;
}
/* Cannot read texture coordinate from constants file */
if (inst->I.SrcReg[0].File != PROGRAM_TEMPORARY && inst->I.SrcReg[0].File != PROGRAM_INPUT) {
struct rc_instruction * inst_mov = rc_insert_new_instruction(c, inst->Prev);
inst_mov->I.Opcode = OPCODE_MOV;
inst_mov->I.DstReg.File = PROGRAM_TEMPORARY;
inst_mov->I.DstReg.Index = rc_find_free_temporary(c);
inst_mov->I.SrcReg[0] = inst->I.SrcReg[0];
reset_srcreg(&inst->I.SrcReg[0]);
inst->I.SrcReg[0].File = PROGRAM_TEMPORARY;
inst->I.SrcReg[0].Index = inst_mov->I.DstReg.Index;
}
return GL_TRUE;
}
GLboolean r500FPIsNativeSwizzle(GLuint opcode, struct prog_src_register reg)
{
GLuint relevant;
int i;
if (opcode == OPCODE_TEX ||
opcode == OPCODE_TXB ||
opcode == OPCODE_TXP ||
opcode == OPCODE_KIL) {
if (reg.Abs)
return GL_FALSE;
if (opcode == OPCODE_KIL && (reg.Swizzle != SWIZZLE_NOOP || reg.Negate != NEGATE_NONE))
return GL_FALSE;
if (reg.Negate)
reg.Negate ^= NEGATE_XYZW;
for(i = 0; i < 4; ++i) {
GLuint swz = GET_SWZ(reg.Swizzle, i);
if (swz == SWIZZLE_NIL) {
reg.Negate &= ~(1 << i);
continue;
}
if (swz >= 4)
return GL_FALSE;
}
if (reg.Negate)
return GL_FALSE;
return GL_TRUE;
} else if (opcode == OPCODE_DDX || opcode == OPCODE_DDY) {
/* DDX/MDH and DDY/MDV explicitly ignore incoming swizzles;
* if it doesn't fit perfectly into a .xyzw case... */
if (reg.Swizzle == SWIZZLE_NOOP && !reg.Abs && !reg.Negate)
return GL_TRUE;
return GL_FALSE;
} else {
/* ALU instructions support almost everything */
if (reg.Abs)
return GL_TRUE;
relevant = 0;
for(i = 0; i < 3; ++i) {
GLuint swz = GET_SWZ(reg.Swizzle, i);
if (swz != SWIZZLE_NIL && swz != SWIZZLE_ZERO)
relevant |= 1 << i;
}
if ((reg.Negate & relevant) && ((reg.Negate & relevant) != relevant))
return GL_FALSE;
return GL_TRUE;
}
}
/**
* Implement a MOV with a potentially non-native swizzle.
*
* The only thing we *cannot* do in an ALU instruction is per-component
* negation. Therefore, we split the MOV into two instructions when necessary.
*/
void r500FPBuildSwizzle(struct nqssadce_state *s, struct prog_dst_register dst, struct prog_src_register src)
{
GLuint negatebase[2] = { 0, 0 };
int i;
for(i = 0; i < 4; ++i) {
GLuint swz = GET_SWZ(src.Swizzle, i);
if (swz == SWIZZLE_NIL)
continue;
negatebase[GET_BIT(src.Negate, i)] |= 1 << i;
}
for(i = 0; i <= 1; ++i) {
if (!negatebase[i])
continue;
struct rc_instruction *inst = rc_insert_new_instruction(s->Compiler, s->IP->Prev);
inst->I.Opcode = OPCODE_MOV;
inst->I.DstReg = dst;
inst->I.DstReg.WriteMask = negatebase[i];
inst->I.SrcReg[0] = src;
inst->I.SrcReg[0].Negate = (i == 0) ? NEGATE_NONE : NEGATE_XYZW;
}
}
static char *toswiz(int swiz_val) {
switch(swiz_val) {
case 0: return "R";
case 1: return "G";
case 2: return "B";
case 3: return "A";
case 4: return "0";
case 5: return "1/2";
case 6: return "1";
case 7: return "U";
}
return NULL;
}
static char *toop(int op_val)
{
char *str = NULL;
switch (op_val) {
case 0: str = "MAD"; break;
case 1: str = "DP3"; break;
case 2: str = "DP4"; break;
case 3: str = "D2A"; break;
case 4: str = "MIN"; break;
case 5: str = "MAX"; break;
case 6: str = "Reserved"; break;
case 7: str = "CND"; break;
case 8: str = "CMP"; break;
case 9: str = "FRC"; break;
case 10: str = "SOP"; break;
case 11: str = "MDH"; break;
case 12: str = "MDV"; break;
}
return str;
}
static char *to_alpha_op(int op_val)
{
char *str = NULL;
switch (op_val) {
case 0: str = "MAD"; break;
case 1: str = "DP"; break;
case 2: str = "MIN"; break;
case 3: str = "MAX"; break;
case 4: str = "Reserved"; break;
case 5: str = "CND"; break;
case 6: str = "CMP"; break;
case 7: str = "FRC"; break;
case 8: str = "EX2"; break;
case 9: str = "LN2"; break;
case 10: str = "RCP"; break;
case 11: str = "RSQ"; break;
case 12: str = "SIN"; break;
case 13: str = "COS"; break;
case 14: str = "MDH"; break;
case 15: str = "MDV"; break;
}
return str;
}
static char *to_mask(int val)
{
char *str = NULL;
switch(val) {
case 0: str = "NONE"; break;
case 1: str = "R"; break;
case 2: str = "G"; break;
case 3: str = "RG"; break;
case 4: str = "B"; break;
case 5: str = "RB"; break;
case 6: str = "GB"; break;
case 7: str = "RGB"; break;
case 8: str = "A"; break;
case 9: str = "AR"; break;
case 10: str = "AG"; break;
case 11: str = "ARG"; break;
case 12: str = "AB"; break;
case 13: str = "ARB"; break;
case 14: str = "AGB"; break;
case 15: str = "ARGB"; break;
}
return str;
}
static char *to_texop(int val)
{
switch(val) {
case 0: return "NOP";
case 1: return "LD";
case 2: return "TEXKILL";
case 3: return "PROJ";
case 4: return "LODBIAS";
case 5: return "LOD";
case 6: return "DXDY";
}
return NULL;
}
void r500FragmentProgramDump(struct rX00_fragment_program_code *c)
{
struct r500_fragment_program_code *code = &c->code.r500;
fprintf(stderr, "R500 Fragment Program:\n--------\n");
int n;
uint32_t inst;
uint32_t inst0;
char *str = NULL;
for (n = 0; n < code->inst_end+1; n++) {
inst0 = inst = code->inst[n].inst0;
fprintf(stderr,"%d\t0:CMN_INST 0x%08x:", n, inst);
switch(inst & 0x3) {
case R500_INST_TYPE_ALU: str = "ALU"; break;
case R500_INST_TYPE_OUT: str = "OUT"; break;
case R500_INST_TYPE_FC: str = "FC"; break;
case R500_INST_TYPE_TEX: str = "TEX"; break;
};
fprintf(stderr,"%s %s %s %s %s ", str,
inst & R500_INST_TEX_SEM_WAIT ? "TEX_WAIT" : "",
inst & R500_INST_LAST ? "LAST" : "",
inst & R500_INST_NOP ? "NOP" : "",
inst & R500_INST_ALU_WAIT ? "ALU WAIT" : "");
fprintf(stderr,"wmask: %s omask: %s\n", to_mask((inst >> 11) & 0xf),
to_mask((inst >> 15) & 0xf));
switch(inst0 & 0x3) {
case 0:
case 1:
fprintf(stderr,"\t1:RGB_ADDR 0x%08x:", code->inst[n].inst1);
inst = code->inst[n].inst1;
fprintf(stderr,"Addr0: %d%c, Addr1: %d%c, Addr2: %d%c, srcp:%d\n",
inst & 0xff, (inst & (1<<8)) ? 'c' : 't',
(inst >> 10) & 0xff, (inst & (1<<18)) ? 'c' : 't',
(inst >> 20) & 0xff, (inst & (1<<28)) ? 'c' : 't',
(inst >> 30));
fprintf(stderr,"\t2:ALPHA_ADDR 0x%08x:", code->inst[n].inst2);
inst = code->inst[n].inst2;
fprintf(stderr,"Addr0: %d%c, Addr1: %d%c, Addr2: %d%c, srcp:%d\n",
inst & 0xff, (inst & (1<<8)) ? 'c' : 't',
(inst >> 10) & 0xff, (inst & (1<<18)) ? 'c' : 't',
(inst >> 20) & 0xff, (inst & (1<<28)) ? 'c' : 't',
(inst >> 30));
fprintf(stderr,"\t3 RGB_INST: 0x%08x:", code->inst[n].inst3);
inst = code->inst[n].inst3;
fprintf(stderr,"rgb_A_src:%d %s/%s/%s %d rgb_B_src:%d %s/%s/%s %d\n",
(inst) & 0x3, toswiz((inst >> 2) & 0x7), toswiz((inst >> 5) & 0x7), toswiz((inst >> 8) & 0x7),
(inst >> 11) & 0x3,
(inst >> 13) & 0x3, toswiz((inst >> 15) & 0x7), toswiz((inst >> 18) & 0x7), toswiz((inst >> 21) & 0x7),
(inst >> 24) & 0x3);
fprintf(stderr,"\t4 ALPHA_INST:0x%08x:", code->inst[n].inst4);
inst = code->inst[n].inst4;
fprintf(stderr,"%s dest:%d%s alp_A_src:%d %s %d alp_B_src:%d %s %d w:%d\n", to_alpha_op(inst & 0xf),
(inst >> 4) & 0x7f, inst & (1<<11) ? "(rel)":"",
(inst >> 12) & 0x3, toswiz((inst >> 14) & 0x7), (inst >> 17) & 0x3,
(inst >> 19) & 0x3, toswiz((inst >> 21) & 0x7), (inst >> 24) & 0x3,
(inst >> 31) & 0x1);
fprintf(stderr,"\t5 RGBA_INST: 0x%08x:", code->inst[n].inst5);
inst = code->inst[n].inst5;
fprintf(stderr,"%s dest:%d%s rgb_C_src:%d %s/%s/%s %d alp_C_src:%d %s %d\n", toop(inst & 0xf),
(inst >> 4) & 0x7f, inst & (1<<11) ? "(rel)":"",
(inst >> 12) & 0x3, toswiz((inst >> 14) & 0x7), toswiz((inst >> 17) & 0x7), toswiz((inst >> 20) & 0x7),
(inst >> 23) & 0x3,
(inst >> 25) & 0x3, toswiz((inst >> 27) & 0x7), (inst >> 30) & 0x3);
break;
case 2:
break;
case 3:
inst = code->inst[n].inst1;
fprintf(stderr,"\t1:TEX_INST: 0x%08x: id: %d op:%s, %s, %s %s\n", inst, (inst >> 16) & 0xf,
to_texop((inst >> 22) & 0x7), (inst & (1<<25)) ? "ACQ" : "",
(inst & (1<<26)) ? "IGNUNC" : "", (inst & (1<<27)) ? "UNSCALED" : "SCALED");
inst = code->inst[n].inst2;
fprintf(stderr,"\t2:TEX_ADDR: 0x%08x: src: %d%s %s/%s/%s/%s dst: %d%s %s/%s/%s/%s\n", inst,
inst & 127, inst & (1<<7) ? "(rel)" : "",
toswiz((inst >> 8) & 0x3), toswiz((inst >> 10) & 0x3),
toswiz((inst >> 12) & 0x3), toswiz((inst >> 14) & 0x3),
(inst >> 16) & 127, inst & (1<<23) ? "(rel)" : "",
toswiz((inst >> 24) & 0x3), toswiz((inst >> 26) & 0x3),
toswiz((inst >> 28) & 0x3), toswiz((inst >> 30) & 0x3));
fprintf(stderr,"\t3:TEX_DXDY: 0x%08x\n", code->inst[n].inst3);
break;
}
fprintf(stderr,"\n");
}
}