/*
* Copyright 2009 Nicolai Hähnle <nhaehnle@gmail.com>
*
* 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
* on 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
* THE COPYRIGHT HOLDER(S) AND/OR THEIR 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 "r300_tgsi_to_rc.h"
#include "compiler/radeon_compiler.h"
#include "tgsi/tgsi_info.h"
#include "tgsi/tgsi_parse.h"
#include "tgsi/tgsi_scan.h"
#include "tgsi/tgsi_util.h"
static unsigned translate_opcode(unsigned opcode)
{
switch(opcode) {
case TGSI_OPCODE_ARL: return RC_OPCODE_ARL;
case TGSI_OPCODE_MOV: return RC_OPCODE_MOV;
case TGSI_OPCODE_LIT: return RC_OPCODE_LIT;
case TGSI_OPCODE_RCP: return RC_OPCODE_RCP;
case TGSI_OPCODE_RSQ: return RC_OPCODE_RSQ;
case TGSI_OPCODE_EXP: return RC_OPCODE_EXP;
case TGSI_OPCODE_LOG: return RC_OPCODE_LOG;
case TGSI_OPCODE_MUL: return RC_OPCODE_MUL;
case TGSI_OPCODE_ADD: return RC_OPCODE_ADD;
case TGSI_OPCODE_DP3: return RC_OPCODE_DP3;
case TGSI_OPCODE_DP4: return RC_OPCODE_DP4;
case TGSI_OPCODE_DST: return RC_OPCODE_DST;
case TGSI_OPCODE_MIN: return RC_OPCODE_MIN;
case TGSI_OPCODE_MAX: return RC_OPCODE_MAX;
case TGSI_OPCODE_SLT: return RC_OPCODE_SLT;
case TGSI_OPCODE_SGE: return RC_OPCODE_SGE;
case TGSI_OPCODE_MAD: return RC_OPCODE_MAD;
case TGSI_OPCODE_SUB: return RC_OPCODE_SUB;
case TGSI_OPCODE_LRP: return RC_OPCODE_LRP;
case TGSI_OPCODE_CND: return RC_OPCODE_CND;
/* case TGSI_OPCODE_DP2A: return RC_OPCODE_DP2A; */
/* gap */
case TGSI_OPCODE_FRC: return RC_OPCODE_FRC;
case TGSI_OPCODE_CLAMP: return RC_OPCODE_CLAMP;
case TGSI_OPCODE_FLR: return RC_OPCODE_FLR;
case TGSI_OPCODE_ROUND: return RC_OPCODE_ROUND;
case TGSI_OPCODE_EX2: return RC_OPCODE_EX2;
case TGSI_OPCODE_LG2: return RC_OPCODE_LG2;
case TGSI_OPCODE_POW: return RC_OPCODE_POW;
case TGSI_OPCODE_XPD: return RC_OPCODE_XPD;
/* gap */
case TGSI_OPCODE_ABS: return RC_OPCODE_ABS;
/* case TGSI_OPCODE_RCC: return RC_OPCODE_RCC; */
case TGSI_OPCODE_DPH: return RC_OPCODE_DPH;
case TGSI_OPCODE_COS: return RC_OPCODE_COS;
case TGSI_OPCODE_DDX: return RC_OPCODE_DDX;
case TGSI_OPCODE_DDY: return RC_OPCODE_DDY;
case TGSI_OPCODE_KILP: return RC_OPCODE_KILP;
/* case TGSI_OPCODE_PK2H: return RC_OPCODE_PK2H; */
/* case TGSI_OPCODE_PK2US: return RC_OPCODE_PK2US; */
/* case TGSI_OPCODE_PK4B: return RC_OPCODE_PK4B; */
/* case TGSI_OPCODE_PK4UB: return RC_OPCODE_PK4UB; */
/* case TGSI_OPCODE_RFL: return RC_OPCODE_RFL; */
case TGSI_OPCODE_SEQ: return RC_OPCODE_SEQ;
case TGSI_OPCODE_SFL: return RC_OPCODE_SFL;
case TGSI_OPCODE_SGT: return RC_OPCODE_SGT;
case TGSI_OPCODE_SIN: return RC_OPCODE_SIN;
case TGSI_OPCODE_SLE: return RC_OPCODE_SLE;
case TGSI_OPCODE_SNE: return RC_OPCODE_SNE;
/* case TGSI_OPCODE_STR: return RC_OPCODE_STR; */
case TGSI_OPCODE_TEX: return RC_OPCODE_TEX;
case TGSI_OPCODE_TXD: return RC_OPCODE_TXD;
case TGSI_OPCODE_TXP: return RC_OPCODE_TXP;
/* case TGSI_OPCODE_UP2H: return RC_OPCODE_UP2H; */
/* case TGSI_OPCODE_UP2US: return RC_OPCODE_UP2US; */
/* case TGSI_OPCODE_UP4B: return RC_OPCODE_UP4B; */
/* case TGSI_OPCODE_UP4UB: return RC_OPCODE_UP4UB; */
/* case TGSI_OPCODE_X2D: return RC_OPCODE_X2D; */
/* case TGSI_OPCODE_ARA: return RC_OPCODE_ARA; */
/* case TGSI_OPCODE_ARR: return RC_OPCODE_ARR; */
/* case TGSI_OPCODE_BRA: return RC_OPCODE_BRA; */
/* case TGSI_OPCODE_CAL: return RC_OPCODE_CAL; */
/* case TGSI_OPCODE_RET: return RC_OPCODE_RET; */
case TGSI_OPCODE_SSG: return RC_OPCODE_SSG;
case TGSI_OPCODE_CMP: return RC_OPCODE_CMP;
case TGSI_OPCODE_SCS: return RC_OPCODE_SCS;
case TGSI_OPCODE_TXB: return RC_OPCODE_TXB;
/* case TGSI_OPCODE_NRM: return RC_OPCODE_NRM; */
/* case TGSI_OPCODE_DIV: return RC_OPCODE_DIV; */
case TGSI_OPCODE_DP2: return RC_OPCODE_DP2;
case TGSI_OPCODE_TXL: return RC_OPCODE_TXL;
case TGSI_OPCODE_BRK: return RC_OPCODE_BRK;
case TGSI_OPCODE_IF: return RC_OPCODE_IF;
case TGSI_OPCODE_BGNLOOP: return RC_OPCODE_BGNLOOP;
case TGSI_OPCODE_ELSE: return RC_OPCODE_ELSE;
case TGSI_OPCODE_ENDIF: return RC_OPCODE_ENDIF;
case TGSI_OPCODE_ENDLOOP: return RC_OPCODE_ENDLOOP;
/* case TGSI_OPCODE_PUSHA: return RC_OPCODE_PUSHA; */
/* case TGSI_OPCODE_POPA: return RC_OPCODE_POPA; */
case TGSI_OPCODE_CEIL: return RC_OPCODE_CEIL;
/* case TGSI_OPCODE_I2F: return RC_OPCODE_I2F; */
/* case TGSI_OPCODE_NOT: return RC_OPCODE_NOT; */
case TGSI_OPCODE_TRUNC: return RC_OPCODE_TRUNC;
/* case TGSI_OPCODE_SHL: return RC_OPCODE_SHL; */
/* case TGSI_OPCODE_ISHR: return RC_OPCODE_SHR; */
/* case TGSI_OPCODE_AND: return RC_OPCODE_AND; */
/* case TGSI_OPCODE_OR: return RC_OPCODE_OR; */
/* case TGSI_OPCODE_MOD: return RC_OPCODE_MOD; */
/* case TGSI_OPCODE_XOR: return RC_OPCODE_XOR; */
/* case TGSI_OPCODE_SAD: return RC_OPCODE_SAD; */
/* case TGSI_OPCODE_TXF: return RC_OPCODE_TXF; */
/* case TGSI_OPCODE_TXQ: return RC_OPCODE_TXQ; */
case TGSI_OPCODE_CONT: return RC_OPCODE_CONT;
/* case TGSI_OPCODE_EMIT: return RC_OPCODE_EMIT; */
/* case TGSI_OPCODE_ENDPRIM: return RC_OPCODE_ENDPRIM; */
/* case TGSI_OPCODE_BGNLOOP2: return RC_OPCODE_BGNLOOP2; */
/* case TGSI_OPCODE_BGNSUB: return RC_OPCODE_BGNSUB; */
/* case TGSI_OPCODE_ENDLOOP2: return RC_OPCODE_ENDLOOP2; */
/* case TGSI_OPCODE_ENDSUB: return RC_OPCODE_ENDSUB; */
case TGSI_OPCODE_NOP: return RC_OPCODE_NOP;
/* gap */
/* case TGSI_OPCODE_NRM4: return RC_OPCODE_NRM4; */
/* case TGSI_OPCODE_CALLNZ: return RC_OPCODE_CALLNZ; */
/* case TGSI_OPCODE_IFC: return RC_OPCODE_IFC; */
/* case TGSI_OPCODE_BREAKC: return RC_OPCODE_BREAKC; */
case TGSI_OPCODE_KIL: return RC_OPCODE_KIL;
}
fprintf(stderr, "r300: Unknown TGSI/RC opcode: %s\n", tgsi_get_opcode_name(opcode));
return RC_OPCODE_ILLEGAL_OPCODE;
}
static unsigned translate_saturate(unsigned saturate)
{
switch(saturate) {
default:
fprintf(stderr, "Unknown saturate mode: %i\n", saturate);
/* fall-through */
case TGSI_SAT_NONE: return RC_SATURATE_NONE;
case TGSI_SAT_ZERO_ONE: return RC_SATURATE_ZERO_ONE;
}
}
static unsigned translate_register_file(unsigned file)
{
switch(file) {
case TGSI_FILE_CONSTANT: return RC_FILE_CONSTANT;
case TGSI_FILE_IMMEDIATE: return RC_FILE_CONSTANT;
case TGSI_FILE_INPUT: return RC_FILE_INPUT;
case TGSI_FILE_OUTPUT: return RC_FILE_OUTPUT;
default:
fprintf(stderr, "Unhandled register file: %i\n", file);
/* fall-through */
case TGSI_FILE_TEMPORARY: return RC_FILE_TEMPORARY;
case TGSI_FILE_ADDRESS: return RC_FILE_ADDRESS;
}
}
static int translate_register_index(
struct tgsi_to_rc * ttr,
unsigned file,
int index)
{
if (file == TGSI_FILE_IMMEDIATE)
return ttr->immediate_offset + index;
return index;
}
static void transform_dstreg(
struct tgsi_to_rc * ttr,
struct rc_dst_register * dst,
struct tgsi_full_dst_register * src)
{
dst->File = translate_register_file(src->Register.File);
dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index);
dst->WriteMask = src->Register.WriteMask;
if (src->Register.Indirect) {
ttr->error = TRUE;
fprintf(stderr, "r300: Relative addressing of destination operands "
"is unsupported.\n");
}
}
static void transform_srcreg(
struct tgsi_to_rc * ttr,
struct rc_src_register * dst,
struct tgsi_full_src_register * src)
{
unsigned i, j;
dst->File = translate_register_file(src->Register.File);
dst->Index = translate_register_index(ttr, src->Register.File, src->Register.Index);
dst->RelAddr = src->Register.Indirect;
dst->Swizzle = tgsi_util_get_full_src_register_swizzle(src, 0);
dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 1) << 3;
dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 2) << 6;
dst->Swizzle |= tgsi_util_get_full_src_register_swizzle(src, 3) << 9;
dst->Abs = src->Register.Absolute;
dst->Negate = src->Register.Negate ? RC_MASK_XYZW : 0;
if (src->Register.File == TGSI_FILE_IMMEDIATE) {
for (i = 0; i < ttr->imms_to_swizzle_count; i++) {
if (ttr->imms_to_swizzle[i].index == src->Register.Index) {
dst->File = RC_FILE_TEMPORARY;
dst->Index = 0;
dst->Swizzle = 0;
for (j = 0; j < 4; j++) {
dst->Swizzle |= GET_SWZ(ttr->imms_to_swizzle[i].swizzle,
tgsi_util_get_full_src_register_swizzle(src, j)) << (j * 3);
}
break;
}
}
}
}
static void transform_texture(struct rc_instruction * dst, struct tgsi_instruction_texture src,
uint32_t *shadowSamplers)
{
switch(src.Texture) {
case TGSI_TEXTURE_1D:
dst->U.I.TexSrcTarget = RC_TEXTURE_1D;
break;
case TGSI_TEXTURE_2D:
dst->U.I.TexSrcTarget = RC_TEXTURE_2D;
break;
case TGSI_TEXTURE_3D:
dst->U.I.TexSrcTarget = RC_TEXTURE_3D;
break;
case TGSI_TEXTURE_CUBE:
dst->U.I.TexSrcTarget = RC_TEXTURE_CUBE;
break;
case TGSI_TEXTURE_RECT:
dst->U.I.TexSrcTarget = RC_TEXTURE_RECT;
break;
case TGSI_TEXTURE_SHADOW1D:
dst->U.I.TexSrcTarget = RC_TEXTURE_1D;
dst->U.I.TexShadow = 1;
*shadowSamplers |= 1 << dst->U.I.TexSrcUnit;
break;
case TGSI_TEXTURE_SHADOW2D:
dst->U.I.TexSrcTarget = RC_TEXTURE_2D;
dst->U.I.TexShadow = 1;
*shadowSamplers |= 1 << dst->U.I.TexSrcUnit;
break;
case TGSI_TEXTURE_SHADOWRECT:
dst->U.I.TexSrcTarget = RC_TEXTURE_RECT;
dst->U.I.TexShadow = 1;
*shadowSamplers |= 1 << dst->U.I.TexSrcUnit;
break;
}
dst->U.I.TexSwizzle = RC_SWIZZLE_XYZW;
}
static void transform_instruction(struct tgsi_to_rc * ttr, struct tgsi_full_instruction * src)
{
struct rc_instruction * dst;
int i;
dst = rc_insert_new_instruction(ttr->compiler, ttr->compiler->Program.Instructions.Prev);
dst->U.I.Opcode = translate_opcode(src->Instruction.Opcode);
dst->U.I.SaturateMode = translate_saturate(src->Instruction.Saturate);
if (src->Instruction.NumDstRegs)
transform_dstreg(ttr, &dst->U.I.DstReg, &src->Dst[0]);
for(i = 0; i < src->Instruction.NumSrcRegs; ++i) {
if (src->Src[i].Register.File == TGSI_FILE_SAMPLER)
dst->U.I.TexSrcUnit = src->Src[i].Register.Index;
else
transform_srcreg(ttr, &dst->U.I.SrcReg[i], &src->Src[i]);
}
/* Texturing. */
if (src->Instruction.Texture)
transform_texture(dst, src->Texture,
&ttr->compiler->Program.ShadowSamplers);
}
static void handle_immediate(struct tgsi_to_rc * ttr,
struct tgsi_full_immediate * imm,
unsigned index)
{
struct rc_constant constant;
unsigned swizzle = 0;
boolean can_swizzle = TRUE;
unsigned i;
for (i = 0; i < 4; i++) {
if (imm->u[i].Float == 0.0f) {
swizzle |= RC_SWIZZLE_ZERO << (i * 3);
} else if (imm->u[i].Float == 0.5f && ttr->use_half_swizzles) {
swizzle |= RC_SWIZZLE_HALF << (i * 3);
} else if (imm->u[i].Float == 1.0f) {
swizzle |= RC_SWIZZLE_ONE << (i * 3);
} else {
can_swizzle = FALSE;
break;
}
}
if (can_swizzle) {
ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].index = index;
ttr->imms_to_swizzle[ttr->imms_to_swizzle_count].swizzle = swizzle;
ttr->imms_to_swizzle_count++;
} else {
constant.Type = RC_CONSTANT_IMMEDIATE;
constant.Size = 4;
for(i = 0; i < 4; ++i)
constant.u.Immediate[i] = imm->u[i].Float;
rc_constants_add(&ttr->compiler->Program.Constants, &constant);
}
}
void r300_tgsi_to_rc(struct tgsi_to_rc * ttr,
const struct tgsi_token * tokens)
{
struct tgsi_full_instruction *inst;
struct tgsi_parse_context parser;
unsigned imm_index = 0;
int i;
ttr->error = FALSE;
/* Allocate constants placeholders.
*
* Note: What if declared constants are not contiguous? */
for(i = 0; i <= ttr->info->file_max[TGSI_FILE_CONSTANT]; ++i) {
struct rc_constant constant;
memset(&constant, 0, sizeof(constant));
constant.Type = RC_CONSTANT_EXTERNAL;
constant.Size = 4;
constant.u.External = i;
rc_constants_add(&ttr->compiler->Program.Constants, &constant);
}
ttr->immediate_offset = ttr->compiler->Program.Constants.Count;
ttr->imms_to_swizzle = malloc(ttr->info->immediate_count * sizeof(struct swizzled_imms));
ttr->imms_to_swizzle_count = 0;
tgsi_parse_init(&parser, tokens);
while (!tgsi_parse_end_of_tokens(&parser)) {
tgsi_parse_token(&parser);
switch (parser.FullToken.Token.Type) {
case TGSI_TOKEN_TYPE_DECLARATION:
break;
case TGSI_TOKEN_TYPE_IMMEDIATE:
handle_immediate(ttr, &parser.FullToken.FullImmediate, imm_index);
imm_index++;
break;
case TGSI_TOKEN_TYPE_INSTRUCTION:
inst = &parser.FullToken.FullInstruction;
if (inst->Instruction.Opcode == TGSI_OPCODE_END) {
break;
}
transform_instruction(ttr, inst);
break;
}
}
tgsi_parse_free(&parser);
free(ttr->imms_to_swizzle);
rc_calculate_inputs_outputs(ttr->compiler);
}