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Diffstat (limited to 'src/mesa/main/nvfragparse.c')
| -rw-r--r-- | src/mesa/main/nvfragparse.c | 1619 |
1 files changed, 1619 insertions, 0 deletions
diff --git a/src/mesa/main/nvfragparse.c b/src/mesa/main/nvfragparse.c new file mode 100644 index 0000000000..c4035f00b1 --- /dev/null +++ b/src/mesa/main/nvfragparse.c @@ -0,0 +1,1619 @@ +/* $Id: nvfragparse.c,v 1.1 2003/01/14 04:55:46 brianp Exp $ */ + +/* + * Mesa 3-D graphics library + * Version: 5.1 + * + * Copyright (C) 1999-2002 Brian Paul 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 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 + * BRIAN PAUL 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. + */ + + +/** + * \file nvfragparse.c + * \brief NVIDIA fragment program parser. + * \author Brian Paul + */ + +#include "glheader.h" +#include "context.h" +#include "hash.h" +#include "imports.h" +#include "macros.h" +#include "mmath.h" +#include "mtypes.h" +#include "nvfragprog.h" +#include "nvfragparse.h" +#include "nvprogram.h" + + +#define FRAG_ATTRIB_WPOS 0 +#define FRAG_ATTRIB_COL0 1 +#define FRAG_ATTRIB_COL1 2 +#define FRAG_ATTRIB_FOGC 3 +#define FRAG_ATTRIB_TEX0 4 +#define FRAG_ATTRIB_TEX1 5 +#define FRAG_ATTRIB_TEX2 6 +#define FRAG_ATTRIB_TEX3 7 +#define FRAG_ATTRIB_TEX4 8 +#define FRAG_ATTRIB_TEX5 9 +#define FRAG_ATTRIB_TEX6 10 +#define FRAG_ATTRIB_TEX7 11 + + +#define INPUT_1V 1 +#define INPUT_2V 2 +#define INPUT_3V 3 +#define INPUT_1S 4 +#define INPUT_2S 5 +#define INPUT_CC 6 +#define INPUT_1V_T 7 /* one source vector, plus textureId */ +#define INPUT_3V_T 8 /* one source vector, plus textureId */ +#define INPUT_NONE 9 +#define OUTPUT_V 20 +#define OUTPUT_S 21 +#define OUTPUT_NONE 22 + +/* Optional suffixes */ +#define _R 0x01 /* real */ +#define _H 0x02 /* half */ +#define _X 0x04 /* fixed */ +#define _C 0x08 /* set cond codes */ +#define _S 0x10 /* saturate */ + +#define SINGLE _R +#define HALF _H +#define FIXED _X + +struct instruction_pattern { + const char *name; + enum fp_opcode opcode; + GLuint inputs; + GLuint outputs; + GLuint suffixes; +}; + +static const struct instruction_pattern Instructions[] = { + { "ADD", FP_OPCODE_ADD, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "COS", FP_OPCODE_COS, INPUT_1S, OUTPUT_S, _R | _H | _C | _S }, + { "DDX", FP_OPCODE_DDX, INPUT_1V, OUTPUT_V, _R | _H | _C | _S }, + { "DDY", FP_OPCODE_DDY, INPUT_1V, OUTPUT_V, _R | _H | _C | _S }, + { "DP3", FP_OPCODE_DP3, INPUT_2V, OUTPUT_S, _R | _H | _X | _C | _S }, + { "DP4", FP_OPCODE_DP4, INPUT_2V, OUTPUT_S, _R | _H | _X | _C | _S }, + { "DST", FP_OPCODE_DP4, INPUT_2V, OUTPUT_V, _R | _H | _C | _S }, + { "EX2", FP_OPCODE_DP4, INPUT_1S, OUTPUT_S, _R | _H | _C | _S }, + { "FLR", FP_OPCODE_FLR, INPUT_1V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "FRC", FP_OPCODE_FRC, INPUT_1V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "KIL", FP_OPCODE_KIL, INPUT_CC, OUTPUT_NONE, 0 }, + { "LG2", FP_OPCODE_LG2, INPUT_1S, OUTPUT_S, _R | _H | _C | _S }, + { "LIT", FP_OPCODE_LIT, INPUT_1V, OUTPUT_V, _R | _H | _C | _S }, + { "LRP", FP_OPCODE_LRP, INPUT_3V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "MAD", FP_OPCODE_MAD, INPUT_3V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "MAX", FP_OPCODE_MAX, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "MIN", FP_OPCODE_MIN, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "MOV", FP_OPCODE_MOV, INPUT_1V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "MUL", FP_OPCODE_MUL, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "PK2H", FP_OPCODE_PK2H, INPUT_1V, OUTPUT_S, 0 }, + { "PK2US", FP_OPCODE_PK2US, INPUT_1V, OUTPUT_S, 0 }, + { "PK4B", FP_OPCODE_PK4B, INPUT_1V, OUTPUT_S, 0 }, + { "PK2UB", FP_OPCODE_PK4UB, INPUT_1V, OUTPUT_S, 0 }, + { "POW", FP_OPCODE_POW, INPUT_2S, OUTPUT_S, _R | _H | _C | _S }, + { "RCP", FP_OPCODE_RCP, INPUT_1S, OUTPUT_S, _R | _H | _C | _S }, + { "RFL", FP_OPCODE_RFL, INPUT_2V, OUTPUT_V, _R | _H | _C | _S }, + { "RSQ", FP_OPCODE_RSQ, INPUT_1S, OUTPUT_S, _R | _H | _C | _S }, + { "SEQ", FP_OPCODE_SEQ, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SFL", FP_OPCODE_SFL, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SGE", FP_OPCODE_SGE, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SGT", FP_OPCODE_SGT, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SIN", FP_OPCODE_SIN, INPUT_1S, OUTPUT_S, _R | _H | _C | _S }, + { "SLE", FP_OPCODE_SLE, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SLT", FP_OPCODE_SLT, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SNE", FP_OPCODE_SNE, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "STR", FP_OPCODE_STR, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "SUB", FP_OPCODE_SUB, INPUT_2V, OUTPUT_V, _R | _H | _X | _C | _S }, + { "TEX", FP_OPCODE_SUB, INPUT_1V_T, OUTPUT_V, _C | _S }, + { "TXD", FP_OPCODE_SUB, INPUT_3V_T, OUTPUT_V, _C | _S }, + { "TXP", FP_OPCODE_SUB, INPUT_1V_T, OUTPUT_V, _C | _S }, + { "UP2H", FP_OPCODE_UP2H, INPUT_1S, OUTPUT_V, _C | _S }, + { "UP2US", FP_OPCODE_UP2US, INPUT_1S, OUTPUT_V, _C | _S }, + { "UP4B", FP_OPCODE_UP4B, INPUT_1S, OUTPUT_V, _C | _S }, + { "UP4UB", FP_OPCODE_UP4UB, INPUT_1S, OUTPUT_V, _C | _S }, + { "X2D", FP_OPCODE_X2D, INPUT_3V, OUTPUT_V, _R | _H | _C | _S }, + { NULL, -1, 0, 0, 0 } +}; + + +/**********************************************************************/ + + +struct parse_state { + const GLubyte *start; /* start of program */ + const GLubyte *end; /* one char past end of the program */ + const GLubyte *s; /* current position */ + GLboolean IsStateProgram; + GLboolean IsVersion1_1; +}; + + + +/* + * Search a list of instruction structures for a match. + */ +static struct instruction_pattern +MatchInstruction(const char *token) +{ + const struct instruction_pattern *inst; + struct instruction_pattern result; + + for (inst = Instructions; inst->name; inst++) { + if (_mesa_strncmp(token, inst->name, 3) == 0) { + /* matched! */ + int i = 3; + result = *inst; + result.suffixes = 0; + /* look at suffix */ + if (token[i] == 'R') { + result.suffixes |= _R; + i++; + } + else if (token[i] == 'H') { + result.suffixes |= _H; + i++; + } + else if (token[i] == 'X') { + result.suffixes |= _X; + i++; + } + if (token[i] == 'C') { + result.suffixes |= _C; + i++; + } + if (token[i] == '_' && token[i+1] == 'S' && + token[i+2] == 'A' && token[i+3] == 'T') { + result.suffixes |= _S; + } + return result; + } + } + result.opcode = -1; + return result; +} + + + + +/**********************************************************************/ + + +static GLboolean IsLetter(char b) +{ + return (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z') || (b == '_'); +} + + +static GLboolean IsDigit(char b) +{ + return b >= '0' && b <= '9'; +} + + +static GLboolean IsWhitespace(char b) +{ + return b == ' ' || b == '\t' || b == '\n' || b == '\r'; +} + + +/** + * Starting at 'str' find the next token. A token can be an integer, + * an identifier or punctuation symbol. + * \return <= 0 we found an error, else, return number of characters parsed. + */ +static GLint +GetToken(const char *str, char *token) +{ + GLint i = 0, j = 0; + + token[0] = 0; + + /* skip whitespace and comments */ + while (str[i] && (IsWhitespace(str[i]) || str[i] == '#')) { + if (str[i] == '#') { + /* skip comment */ + while (str[i] && (str[i] != '\n' && str[i] != '\r')) { + i++; + } + } + else { + /* skip whitespace */ + i++; + } + } + + if (str[i] == 0) + return -i; + + /* try matching an integer */ + while (str[i] && IsDigit(str[i])) { + token[j++] = str[i++]; + } + if (j > 0 || !str[i]) { + token[j] = 0; + return i; + } + + /* try matching an identifier */ + if (IsLetter(str[i])) { + while (str[i] && (IsLetter(str[i]) || IsDigit(str[i]))) { + token[j++] = str[i++]; + } + token[j] = 0; + return i; + } + + /* punctuation */ + if (str[i]) { + token[0] = str[i++]; + token[1] = 0; + return i; + } + + /* end of input */ + token[0] = 0; + return i; +} + + +/** + * Get next token from input stream and increment stream pointer past token. + */ +static GLboolean +Parse_Token(const char **s, char *token) +{ + GLint i; + i = GetToken(*s, token); + if (i <= 0) { + *s += (-i); + return GL_FALSE; + } + *s += i; + return GL_TRUE; +} + + +/** + * Get next token from input stream but don't increment stream pointer. + */ +static GLboolean +Peek_Token(const char **s, char *token) +{ + GLint i, len; + i = GetToken(*s, token); + if (i <= 0) { + *s += (-i); + return GL_FALSE; + } + len = _mesa_strlen(token); + *s += (i - len); + return GL_TRUE; +} + + +/** + * String equality test + */ +static GLboolean +StrEq(const char *a, const char *b) +{ + GLint i; + for (i = 0; a[i] && b[i] && a[i] == (char) b[i]; i++) + ; + if (a[i] == 0 && b[i] == 0) + return GL_TRUE; + else + return GL_FALSE; +} + + + +/**********************************************************************/ + +static const char *InputRegisters[] = { + "WPOS", "COL0", "COL1", "FOGC", + "TEX0", "TEX1", "TEX2", "TEX3", "TEX4", "TEX5", "TEX6", "TEX7", NULL +}; + +static const char *OutputRegisters[] = { + "COLR", "COLH", "TEX0", "TEX1", "TEX2", "TEX3", "DEPR", NULL +}; + + +#ifdef DEBUG + +#define PARSE_ERROR \ +do { \ + _mesa_printf("fpparse.c error at %d: parse error\n", __LINE__); \ + return GL_FALSE; \ +} while(0) + +#define PARSE_ERROR1(msg) \ +do { \ + _mesa_printf("fpparse.c error at %d: %s\n", __LINE__, msg); \ + return GL_FALSE; \ +} while(0) + +#define PARSE_ERROR2(msg1, msg2) \ +do { \ + _mesa_printf("fpparse.c error at %d: %s %s\n", __LINE__, msg1, msg2);\ + return GL_FALSE; \ +} while(0) + +#else + +#define PARSE_ERROR return GL_FALSE +#define PARSE_ERROR1(msg1) return GL_FALSE +#define PARSE_ERROR2(msg1, msg2) return GL_FALSE + +#endif + + +static GLint +TempRegisterNumber(GLuint r) +{ + if (r >= FP_TEMP_REG_START && r <= FP_TEMP_REG_END) + return r - FP_TEMP_REG_START; + else + return -1; +} + +static GLint +HalfTempRegisterNumber(GLuint r) +{ + if (r >= FP_TEMP_REG_START + 32 && r <= FP_TEMP_REG_END) + return r - FP_TEMP_REG_START - 32; + else + return -1; +} + +static GLint +InputRegisterNumber(GLuint r) +{ + if (r >= FP_INPUT_REG_START && r <= FP_INPUT_REG_END) + return r - FP_INPUT_REG_START; + else + return -1; +} + +static GLint +OutputRegisterNumber(GLuint r) +{ + if (r >= FP_OUTPUT_REG_START && r <= FP_OUTPUT_REG_END) + return r - FP_OUTPUT_REG_START; + else + return -1; +} + +static GLint +ProgramRegisterNumber(GLuint r) +{ + if (r >= FP_PROG_REG_START && r <= FP_PROG_REG_END) + return r - FP_PROG_REG_START; + else + return -1; +} + +static GLint +DummyRegisterNumber(GLuint r) +{ + if (r >= FP_DUMMY_REG_START && r <= FP_DUMMY_REG_END) + return r - FP_DUMMY_REG_START; + else + return -1; +} + + + +/**********************************************************************/ + + +/** + * Try to match 'pattern' as the next token after any whitespace/comments. + */ +static GLboolean +Parse_String(const char **s, const char *pattern) +{ + GLint i; + + /* skip whitespace and comments */ + while (IsWhitespace(**s) || **s == '#') { + if (**s == '#') { + while (**s && (**s != '\n' && **s != '\r')) { + *s += 1; + } + } + else { + /* skip whitespace */ + *s += 1; + } + } + + /* Try to match the pattern */ + for (i = 0; pattern[i]; i++) { + if (**s != pattern[i]) + PARSE_ERROR2("failed to match", pattern); /* failure */ + *s += 1; + } + + return GL_TRUE; /* success */ +} + + +static GLboolean +Parse_Identifier(const char **s, char *ident) +{ + if (!Parse_Token(s, ident)) + PARSE_ERROR; + if (IsLetter(ident[0])) + return GL_TRUE; + else + PARSE_ERROR1("Expected an identfier"); +} + + +/** + * Parse a floating point constant. + * [+/-]N[.N[eN]] + */ +static GLboolean +Parse_ScalarConstant(const char **s, GLfloat *number) +{ + char *end; + + *number = _mesa_strtof(*s, &end); + + if (end && end > *s) { + /* got a number */ + *s = end; + return GL_TRUE; + } + else { + /* should be an identifier */ + char ident[100]; + if (!Parse_Identifier(s, ident)) + PARSE_ERROR1("Expected an identifier"); + /* XXX Look up the value in the symbol table */ + *number = -999; + return GL_TRUE; + } +} + + + +/** + * Parse a vector constant, one of: + * { float } + * { float, float } + * { float, float, float } + * { float, float, float, float } + */ +static GLboolean +Parse_VectorConstant(const char **s, GLfloat *vec) +{ + char token[100]; + + if (!Parse_String(s, "{")) + return GL_FALSE; + + if (!Parse_ScalarConstant(s, vec+0)) /* X */ + return GL_FALSE; + + if (!Parse_Token(s, token)) /* , or } */ + return GL_FALSE; + + if (token[0] == '}') { + vec[1] = vec[2] = vec[3] = vec[0]; + return GL_TRUE; + } + + if (token[0] != ',') + PARSE_ERROR1("Expected comma in vector constant"); + + if (!Parse_ScalarConstant(s, vec+1)) /* Y */ + return GL_FALSE; + + if (!Parse_Token(s, token)) /* , or } */ + return GL_FALSE; + + if (token[0] == '}') { + vec[2] = vec[3] = vec[1]; + return GL_TRUE; + } + + if (token[0] != ',') + PARSE_ERROR1("Expected comma in vector constant"); + + if (!Parse_ScalarConstant(s, vec+2)) /* Z */ + return GL_FALSE; + + if (!Parse_Token(s, token)) /* , or } */ + return GL_FALSE; + + if (token[0] == '}') { + vec[3] = vec[2]; + return GL_TRUE; + } + + if (token[0] != ',') + PARSE_ERROR1("Expected comma in vector constant"); + + if (!Parse_ScalarConstant(s, vec+3)) /* W */ + return GL_FALSE; + + if (!Parse_String(s, "}")) + PARSE_ERROR1("Expected closing brace in vector constant"); + + return GL_TRUE; +} + + +static GLboolean +Parse_VectorOrScalarConstant(const char **s, GLfloat *vec) +{ + char token[100]; + if (!Peek_Token(s, token)) + PARSE_ERROR; + if (token[0] == '{') { + return Parse_VectorConstant(s, vec); + } + else { + GLboolean b = Parse_ScalarConstant(s, vec); + if (b) { + vec[1] = vec[2] = vec[3] = vec[0]; + } + return b; + } +} + + +/** + * Parse a texture image source: + * [TEX0 | TEX1 | .. | TEX15] + * [TEX0 | TEX1 | .. | TEX15] . [1D | 2D | 3D | CUBE | RECT] + */ +static GLboolean +Parse_TextureImageId(const char **s, GLuint *unit, GLenum *target) +{ + return GL_TRUE; +} + + +/** + * Parse a swizzle suffix like .x or .z or .wxyz or .xxyy etc and return + * the swizzle indexes. + */ +static GLboolean +Parse_SwizzleSuffix(const char *token, GLuint swizzle[4]) +{ + if (token[1] == 0) { + /* single letter swizzle (scalar) */ + if (token[0] == 'x') + ASSIGN_4V(swizzle, 0, 0, 0, 0); + else if (token[0] == 'y') + ASSIGN_4V(swizzle, 1, 1, 1, 1); + else if (token[0] == 'z') + ASSIGN_4V(swizzle, 2, 2, 2, 2); + else if (token[0] == 'w') + ASSIGN_4V(swizzle, 3, 3, 3, 3); + else + return GL_FALSE; + } + else { + /* 4-component swizzle (vector) */ + GLint k; + for (k = 0; token[k] && k < 4; k++) { + if (token[k] == 'x') + swizzle[k] = 0; + else if (token[k] == 'y') + swizzle[k] = 1; + else if (token[k] == 'z') + swizzle[k] = 2; + else if (token[k] == 'w') + swizzle[k] = 3; + else + return GL_FALSE; + } + if (k != 4) + return GL_FALSE; + } + return GL_TRUE; +} + + +static GLboolean +Parse_CondCodeMask(const char **s, struct fp_dst_register *dstReg) +{ + char token[100]; + + if (!Parse_Token(s, token)) + PARSE_ERROR; + + if (StrEq(token, "EQ")) + dstReg->CondMask = COND_EQ; + else if (StrEq(token, "GE")) + dstReg->CondMask = COND_GE; + else if (StrEq(token, "GT")) + dstReg->CondMask = COND_GT; + else if (StrEq(token, "LE")) + dstReg->CondMask = COND_LE; + else if (StrEq(token, "LT")) + dstReg->CondMask = COND_LT; + else if (StrEq(token, "NE")) + dstReg->CondMask = COND_NE; + else if (StrEq(token, "TR")) + dstReg->CondMask = COND_TR; + else if (StrEq(token, "FL")) + dstReg->CondMask = COND_FL; + else + PARSE_ERROR1("Invalid condition code mask"); + + /* look for optional .xyzw swizzle */ + if (!Peek_Token(s, token)) + PARSE_ERROR; + + if (token[0] == '.') { + Parse_String(s, "."); /* consume '.' */ + if (!Parse_Token(s, token)) /* get xyzw suffix */ + PARSE_ERROR; + + if (!Parse_SwizzleSuffix(token, dstReg->CondSwizzle)) + PARSE_ERROR1("Bad swizzle suffix"); + } + + return GL_TRUE; +} + + +/** + * Parse a temporary register: Rnn or Hnn + */ +static GLboolean +Parse_TempReg(const char **s, GLint *tempRegNum) +{ + char token[100]; + + /* Should be 'R##' or 'H##' */ + if (!Parse_Token(s, token)) + PARSE_ERROR; + if (token[0] != 'R' && token[0] != 'H') + PARSE_ERROR1("Expected R## or H##"); + + if (IsDigit(token[1])) { + GLint reg = _mesa_atoi((token + 1)); + if (token[0] == 'H') + reg += 32; + if (reg >= MAX_NV_FRAGMENT_PROGRAM_TEMPS) + PARSE_ERROR1("Bad temporary register name"); + *tempRegNum = FP_TEMP_REG_START + reg; + } + else { + PARSE_ERROR1("Bad temporary register name"); + } + + return GL_TRUE; +} + + +static GLboolean +Parse_DummyReg(const char **s, GLint *regNum) +{ + char token[100]; + + /* Should be 'RC' or 'HC' */ + if (!Parse_Token(s, token)) + PARSE_ERROR; + + if (_mesa_strcmp(token, "RC")) { + *regNum = FP_DUMMY_REG_START; + } + else if (_mesa_strcmp(token, "HC")) { + *regNum = FP_DUMMY_REG_START + 1; + } + else { + PARSE_ERROR1("Bad write-only register name"); + } + + return GL_TRUE; +} + + +/** + * Parse a program local parameter register "p[##]" + */ +static GLboolean +Parse_ProgramParamReg(const char **s, GLint *regNum) +{ + char token[100]; + + if (!Parse_String(s, "p")) + PARSE_ERROR; + + if (!Parse_String(s, "[")) + PARSE_ERROR; + + if (!Parse_Token(s, token)) + PARSE_ERROR; + + if (IsDigit(token[0])) { + /* a numbered program parameter register */ + GLint reg = _mesa_atoi(token); + if (reg >= MAX_NV_FRAGMENT_PROGRAM_PARAMS) + PARSE_ERROR1("Bad constant program number"); + *regNum = FP_PROG_REG_START + reg; + } + else { + PARSE_ERROR; + } + + if (!Parse_String(s, "]")) + PARSE_ERROR; + + return GL_TRUE; +} + + +/** + * Parse f[name] - fragment input register + */ +static GLboolean +Parse_AttribReg(const char **s, GLint *tempRegNum) +{ + char token[100]; + GLint j; + + /* Match 'f' */ + if (!Parse_String(s, "f")) + PARSE_ERROR; + + /* Match '[' */ + if (!Parse_String(s, "[")) + PARSE_ERROR; + + /* get <name> and look for match */ + if (!Parse_Token(s, token)) { + PARSE_ERROR; + } + for (j = 0; InputRegisters[j]; j++) { + if (StrEq(token, InputRegisters[j])) { + *tempRegNum = FP_INPUT_REG_START + j; + break; + } + } + if (!InputRegisters[j]) { + /* unknown input register label */ + PARSE_ERROR2("Bad register name", token); + } + + /* Match '[' */ + if (!Parse_String(s, "]")) + PARSE_ERROR; + + return GL_TRUE; +} + + +static GLboolean +Parse_OutputReg(const char **s, GLint *outputRegNum) +{ + char token[100]; + GLint j; + + /* Match 'o' */ + if (!Parse_String(s, "o")) + PARSE_ERROR; + + /* Match '[' */ + if (!Parse_String(s, "[")) + PARSE_ERROR; + + /* Get output reg name */ + if (!Parse_Token(s, token)) + PARSE_ERROR; + + /* try to match an output register name */ + for (j = 0; OutputRegisters[j]; j++) { + if (StrEq(token, OutputRegisters[j])) { + *outputRegNum = FP_OUTPUT_REG_START + j; + break; + } + } + if (!OutputRegisters[j]) + PARSE_ERROR1("Unrecognized output register name"); + + /* Match ']' */ + if (!Parse_String(s, "]")) + PARSE_ERROR1("Expected ]"); + + return GL_TRUE; +} + + +static GLboolean +Parse_MaskedDstReg(const char **s, struct fp_dst_register *dstReg) +{ + char token[100]; + + /* Dst reg can be R<n>, H<n>, o[n], RC or HC */ + if (!Peek_Token(s, token)) + PARSE_ERROR; + + if (_mesa_strcmp(token, "RC") == 0 || + _mesa_strcmp(token, "HC") == 0) { + /* a write-only register */ + if (!Parse_DummyReg(s, &dstReg->Register)) + PARSE_ERROR; + } + else if (token[0] == 'R' || token[0] == 'H') { + /* a temporary register */ + if (!Parse_TempReg(s, &dstReg->Register)) + PARSE_ERROR; + } + else if (token[0] == 'o') { + /* an output register */ + if (!Parse_OutputReg(s, &dstReg->Register)) + PARSE_ERROR; + } + else { + PARSE_ERROR1("Bad destination register name"); + } + + /* Parse optional write mask */ + if (!Peek_Token(s, token)) + PARSE_ERROR; + + if (token[0] == '.') { + /* got a mask */ + GLint k = 0; + + if (!Parse_String(s, ".")) + PARSE_ERROR; + + if (!Parse_Token(s, token)) /* get xyzw writemask */ + PARSE_ERROR; + + dstReg->WriteMask[0] = GL_FALSE; + dstReg->WriteMask[1] = GL_FALSE; + dstReg->WriteMask[2] = GL_FALSE; + dstReg->WriteMask[3] = GL_FALSE; + + if (token[k] == 'x') { + dstReg->WriteMask[0] = GL_TRUE; + k++; + } + if (token[k] == 'y') { + dstReg->WriteMask[1] = GL_TRUE; + k++; + } + if (token[k] == 'z') { + dstReg->WriteMask[2] = GL_TRUE; + k++; + } + if (token[k] == 'w') { + dstReg->WriteMask[3] = GL_TRUE; + k++; + } + if (k == 0) { + PARSE_ERROR1("Bad writemask character"); + } + + /* peek optional cc mask */ + if (!Peek_Token(s, token)) + PARSE_ERROR; + } + else { + dstReg->WriteMask[0] = GL_TRUE; + dstReg->WriteMask[1] = GL_TRUE; + dstReg->WriteMask[2] = GL_TRUE; + dstReg->WriteMask[3] = GL_TRUE; + } + + /* optional condition code mask */ + if (token[0] == '(') { + /* ("EQ" | "GE" | "GT" | "LE" | "LT" | "NE" | "TR" | "FL".x|y|z|w) */ + /* ("EQ" | "GE" | "GT" | "LE" | "LT" | "NE" | "TR" | "FL".[xyzw]) */ + Parse_String(s, "("); + + if (!Parse_CondCodeMask(s, dstReg)) + PARSE_ERROR; + + if (!Parse_String(s, ")")) /* consume ")" */ + PARSE_ERROR; + + return GL_TRUE; + } + else { + /* no cond code mask */ + dstReg->CondMask = COND_TR; + dstReg->CondSwizzle[0] = 0; + dstReg->CondSwizzle[1] = 1; + dstReg->CondSwizzle[2] = 2; + dstReg->CondSwizzle[3] = 3; + return GL_TRUE; + } +} + + +static GLboolean +Parse_SwizzleSrcReg(const char **s, struct fp_src_register *srcReg) +{ + char token[100]; + + /* XXX need to parse absolute value and another negation ***/ + srcReg->NegateBase = GL_FALSE; + srcReg->Abs = GL_FALSE; + srcReg->NegateAbs = GL_FALSE; + + /* check for '-' */ + if (!Peek_Token(s, token)) + PARSE_ERROR; + if (token[0] == '-') { + (void) Parse_String(s, "-"); + srcReg->NegateBase = GL_TRUE; + if (!Peek_Token(s, token)) + PARSE_ERROR; + } + else { + srcReg->NegateBase = GL_FALSE; + } + + /* Src reg can be R<n>, H<n> or a named fragment attrib */ + if (token[0] == 'R' || token[0] == 'H') { + if (!Parse_TempReg(s, &srcReg->Register)) + PARSE_ERROR; + } + else if (token[0] == 'f') { + if (!Parse_AttribReg(s, &srcReg->Register)) + PARSE_ERROR; + } + else if (token[0] == 'p') { + if (!Parse_ProgramParamReg(s, &srcReg->Register)) + PARSE_ERROR; + } + else { + /* Also parse defined/declared constant or vector literal */ + PARSE_ERROR2("Bad source register name", token); + } + + /* init swizzle fields */ + srcReg->Swizzle[0] = 0; + srcReg->Swizzle[1] = 1; + srcReg->Swizzle[2] = 2; + srcReg->Swizzle[3] = 3; + + /* Look for optional swizzle suffix */ + if (!Peek_Token(s, token)) + PARSE_ERROR; + if (token[0] == '.') { + (void) Parse_String(s, "."); /* consume . */ + + if (!Parse_Token(s, token)) + PARSE_ERROR; + + if (!Parse_SwizzleSuffix(token, srcReg->Swizzle)) + PARSE_ERROR1("Bad swizzle suffix"); + } + + return GL_TRUE; +} + + +static GLboolean +Parse_ScalarSrcReg(const char **s, struct fp_src_register *srcReg) +{ + char token[100]; + + /* check for '-' */ + if (!Peek_Token(s, token)) + PARSE_ERROR; + if (token[0] == '-') { + srcReg->NegateBase = GL_TRUE; + (void) Parse_String(s, "-"); /* consume '-' */ + if (!Peek_Token(s, token)) + PARSE_ERROR; + } + else { + srcReg->NegateBase = GL_FALSE; + } + + /* Src reg can be R<n>, H<n> or a named fragment attrib */ + if (token[0] == 'R' || token[0] == 'H') { + if (!Parse_TempReg(s, &srcReg->Register)) + PARSE_ERROR; + } + else if (token[0] == 'f') { + if (!Parse_AttribReg(s, &srcReg->Register)) + PARSE_ERROR; + } + else { + PARSE_ERROR2("Bad source register name", token); + } + + /* Look for .[xyzw] suffix */ + if (!Parse_String(s, ".")) + PARSE_ERROR; + + if (!Parse_Token(s, token)) + PARSE_ERROR; + + if (token[0] == 'x' && token[1] == 0) { + srcReg->Swizzle[0] = 0; + } + else if (token[0] == 'y' && token[1] == 0) { + srcReg->Swizzle[0] = 1; + } + else if (token[0] == 'z' && token[1] == 0) { + srcReg->Swizzle[0] = 2; + } + else if (token[0] == 'w' && token[1] == 0) { + srcReg->Swizzle[0] = 3; + } + else { + PARSE_ERROR1("Bad scalar source suffix"); + } + srcReg->Swizzle[1] = srcReg->Swizzle[2] = srcReg->Swizzle[3] = 0; + + return GL_TRUE; +} + + + +static GLboolean +Parse_InstructionSequence(const char **s, struct fp_instruction program[]) +{ + char token[100]; + GLint count = 0; + + while (1) { + struct fp_instruction *inst = program + count; + struct instruction_pattern instMatch; + + /* Initialize the instruction */ + inst->SrcReg[0].Register = -1; + inst->SrcReg[1].Register = -1; + inst->SrcReg[2].Register = -1; + inst->DstReg.Register = -1; + + /* get token */ + if (!Parse_Token(s, token)) { + inst->Opcode = FP_OPCODE_END; + printf("END OF PROGRAM %d\n", count); + break; + } + + /* special instructions */ + if (StrEq(token, "DEFINE")) { + char id[100]; + GLfloat value[4]; + if (!Parse_Identifier(s, id)) + PARSE_ERROR; + if (!Parse_String(s, "=")) + PARSE_ERROR1("Expected = symbol"); + if (!Parse_VectorOrScalarConstant(s, value)) + PARSE_ERROR; + printf("Parsed DEFINE %s = %f %f %f %f\n", id, value[0], value[1], + value[2], value[3]); + } + else if (StrEq(token, "DECLARE")) { + char id[100]; + GLfloat value[4]; + if (!Parse_Identifier(s, id)) + PARSE_ERROR; + if (!Peek_Token(s, token)) + PARSE_ERROR; + if (token[0] == '=') { + Parse_String(s, "="); + if (!Parse_VectorOrScalarConstant(s, value)) + PARSE_ERROR; + printf("Parsed DECLARE %s = %f %f %f %f\n", id, value[0], value[1], + value[2], value[3]); + } + else { + printf("Parsed DECLARE %s\n", id); + } + } + + /* try to find matching instuction */ + instMatch = MatchInstruction(token); + if (instMatch.opcode < 0) { + /* bad instruction name */ + PARSE_ERROR2("Unexpected token: ", token); + } + + inst->Opcode = instMatch.opcode; + inst->Precision = instMatch.suffixes & (_R | _H | _X); + inst->Saturate = (instMatch.suffixes & (_S)) ? GL_TRUE : GL_FALSE; + inst->UpdateCondRegister = (instMatch.suffixes & (_C)) ? GL_TRUE : GL_FALSE; + + /* + * parse the input and output operands + */ + if (instMatch.outputs == OUTPUT_S || instMatch.outputs == OUTPUT_V) { + if (!Parse_MaskedDstReg(s, &inst->DstReg)) + PARSE_ERROR; + if (!Parse_String(s, ",")) + PARSE_ERROR; + } + else if (instMatch.outputs == OUTPUT_NONE) { + ASSERT(instMatch.opcode == FP_OPCODE_KIL); + /* This is a little weird, the cond code info is in the dest register */ + if (!Parse_CondCodeMask(s, &inst->DstReg)) + PARSE_ERROR; + } + + if (instMatch.inputs == INPUT_1V) { + if (!Parse_SwizzleSrcReg(s, &inst->SrcReg[0])) + PARSE_ERROR; + } + else if (instMatch.inputs == INPUT_2V) { + if (!Parse_SwizzleSrcReg(s, &inst->SrcReg[0])) + PARSE_ERROR; + if (!Parse_String(s, ",")) + PARSE_ERROR; + if (!Parse_SwizzleSrcReg(s, &inst->SrcReg[1])) + PARSE_ERROR; + } + else if (instMatch.inputs == INPUT_3V) { + if (!Parse_SwizzleSrcReg(s, &inst->SrcReg[1])) + PARSE_ERROR; + if (!Parse_String(s, ",")) + PARSE_ERROR; + if (!Parse_SwizzleSrcReg(s, &inst->SrcReg[1])) + PARSE_ERROR; + if (!Parse_String(s, ",")) + PARSE_ERROR; + if (!Parse_SwizzleSrcReg(s, &inst->SrcReg[1])) + PARSE_ERROR; + } + else if (instMatch.inputs == INPUT_1S) { + if (!Parse_ScalarSrcReg(s, &inst->SrcReg[1])) + PARSE_ERROR; + } + else if (instMatch.inputs == INPUT_2S) { + if (!Parse_ScalarSrcReg(s, &inst->SrcReg[0])) + PARSE_ERROR; + if (!Parse_String(s, ",")) + PARSE_ERROR; + if (!Parse_ScalarSrcReg(s, &inst->SrcReg[1])) + PARSE_ERROR; + } + else if (instMatch.inputs == INPUT_CC) { +#if 00 + if (!ParseCondCodeSrc(s, &inst->srcReg[0])) + PARSE_ERROR; +#endif + } + else if (instMatch.inputs == INPUT_1V_T) { + if (!Parse_SwizzleSrcReg(s, &inst->SrcReg[0])) + PARSE_ERROR; + if (!Parse_String(s, ",")) + PARSE_ERROR; + if (!Parse_TextureImageId(s, &inst->TexSrcUnit, &inst->TexSrcTarget)) + PARSE_ERROR; + } + else if (instMatch.inputs == INPUT_1V_T) { + if (!Parse_SwizzleSrcReg(s, &inst->SrcReg[0])) + PARSE_ERROR; + if (!Parse_String(s, ",")) + PARSE_ERROR; + if (!Parse_SwizzleSrcReg(s, &inst->SrcReg[1])) + PARSE_ERROR; + if (!Parse_String(s, ",")) + PARSE_ERROR; + if (!Parse_SwizzleSrcReg(s, &inst->SrcReg[2])) + PARSE_ERROR; + if (!Parse_String(s, ",")) + PARSE_ERROR; + if (!Parse_TextureImageId(s, &inst->TexSrcUnit, &inst->TexSrcTarget)) + PARSE_ERROR; + } + + /* end of statement semicolon */ + if (!Parse_String(s, ";")) + PARSE_ERROR; + + count++; + if (count >= MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS) + PARSE_ERROR1("Program too long"); + } + return GL_TRUE; +} + + +static GLboolean +Parse_Program(const char **s, struct fp_instruction instBuffer[]) +{ + return Parse_InstructionSequence(s, instBuffer); +} + + +/** + * Parse/compile the 'str' returning the compiled 'program'. + * ctx->Program.ErrorPos will be -1 if successful. Otherwise, ErrorPos + * indicates the position of the error in 'str'. + */ +void +_mesa_parse_nv_fragment_program(GLcontext *ctx, GLenum dstTarget, + const GLubyte *str, GLsizei len, + struct fragment_program *program) +{ + const char *s; + struct fp_instruction instBuffer[MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS]; + GLubyte *newString; + struct fp_instruction *newInst; + GLenum target; + GLubyte *programString; + + /* Make a null-terminated copy of the program string */ + programString = (GLubyte *) MALLOC(len + 1); + if (!programString) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV"); + return; + } + MEMCPY(programString, str, len); + programString[len] = 0; + + + /* check the program header */ + if (_mesa_strncmp((const char *) programString, "!!FP1.0", 7) == 0) { + target = GL_FRAGMENT_PROGRAM_NV; + s = (const char *) programString + 7; + } + else { + /* invalid header */ + _mesa_set_program_error(ctx, 0, "Invalid fragment program header"); + _mesa_error(ctx, GL_INVALID_OPERATION, "glLoadProgramNV(bad header)"); + return; + } + + /* make sure target and header match */ + if (target != dstTarget) { + _mesa_error(ctx, GL_INVALID_OPERATION, + "glLoadProgramNV(target mismatch 0x%x != 0x%x)", + target, dstTarget); + return; + } + + if (Parse_Program(&s, instBuffer)) { + GLuint numInst; + GLuint strLen; + GLuint inputsRead = 0; + GLuint outputsWritten = 0; + /**GLuint progRegsWritten = 0;**/ + + /* Find length of the program and compute bitmasks to indicate which + * vertex input registers are read, which vertex result registers are + * written to, and which program registers are written to. + * We could actually do this while we parse the program. + */ + for (numInst = 0; instBuffer[numInst].Opcode != FP_OPCODE_END; numInst++) { +#if 0 + const GLint srcReg0 = instBuffer[numInst].SrcReg[0].Register; + const GLint srcReg1 = instBuffer[numInst].SrcReg[1].Register; + const GLint srcReg2 = instBuffer[numInst].SrcReg[2].Register; + const GLint dstReg = instBuffer[numInst].DstReg.Register; + + if ((r = OutputRegisterNumber(dstReg)) >= 0) + outputsWritten |= (1 << r); + else if (IsProgRegister(dstReg)) + progRegsWritten |= (1 << (dstReg - FP_PROG_REG_START)); + if ((r = InputRegisterNumber(srcReg0)) >= 0 + && !instBuffer[numInst].SrcReg[0].RelAddr) + inputsRead |= (1 << r); + if ((r = InputRegisterNumber(srcReg1) >= 0 + && !instBuffer[numInst].SrcReg[1].RelAddr) + inputsRead |= (1 << r); + if ((r = InputRegisterNumber(srcReg2) >= 0 + && !instBuffer[numInst].SrcReg[2].RelAddr) + inputsRead |= (1 << r); +#endif + } + numInst++; + printf("numInst %d\n", numInst); + + program->InputsRead = inputsRead; + program->OutputsWritten = outputsWritten; + + /* make copy of the input program string */ + strLen = _mesa_strlen((const char *) str); + newString = (GLubyte *) MALLOC(strLen + 1); + if (!newString) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV"); + return; + } + MEMCPY(newString, str, strLen); + newString[strLen] = 0; /* terminate */ + + /* copy the compiled instructions */ + assert(numInst <= MAX_NV_FRAGMENT_PROGRAM_INSTRUCTIONS); + newInst = (struct fp_instruction *) MALLOC(numInst * sizeof(struct fp_instruction)); + if (!newInst) { + _mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV"); + return; /* out of memory */ + } + MEMCPY(newInst, instBuffer, numInst * sizeof(struct fp_instruction)); + + /* install the program */ + program->Base.Target = target; + if (program->Base.String) { + FREE(program->Base.String); + } + program->Base.String = newString; + if (program->Instructions) { + FREE(program->Instructions); + } + program->Instructions = newInst; + +#ifdef DEBUG + _mesa_printf("--- glLoadProgramNV result ---\n"); + _mesa_print_nv_fragment_program(program); + _mesa_printf("------------------------------\n"); +#endif + } + else { + /* Error! */ +#ifdef DEBUG + /* print a message showing the program line containing the error */ + ctx->Program.ErrorPos = (GLubyte *) s - str; + { + const GLubyte *p = str, *line = str; + int lineNum = 1, statementNum = 1, column = 0; + char errorLine[1000]; + int i; + while (*p && p < (const GLubyte *) s) { /* s is the error position */ + if (*p == '\n') { + line = p + 1; + lineNum++; + column = 0; + } + else if (*p == ';') { + statementNum++; + } + else + column++; + p++; + } + if (p) { + /* Copy the line with the error into errorLine so we can null- + * terminate it. + */ + for (i = 0; line[i] != '\n' && line[i]; i++) + errorLine[i] = (char) line[i]; + errorLine[i] = 0; + } + /* + _mesa_debug("Error pos = %d (%c) col %d\n", + ctx->Program.ErrorPos, *s, column); + */ + _mesa_debug(ctx, "Fragment program error on line %2d: %s\n", lineNum, errorLine); + _mesa_debug(ctx, " (statement %2d) near column %2d: ", statementNum, column+1); + for (i = 0; i < column; i++) + _mesa_debug(ctx, " "); + _mesa_debug(ctx, "^\n"); + } +#endif + _mesa_error(ctx, GL_INVALID_OPERATION, "glLoadProgramNV"); + } +} + + +static void +PrintSrcReg(const struct fp_src_register *src) +{ + static const char comps[5] = "xyzw"; + GLint r; + + if (src->NegateAbs) { + _mesa_printf("-"); + } + if (src->Abs) { + _mesa_printf("|"); + } + if (src->NegateBase) { + _mesa_printf("-"); + } + if ((r = OutputRegisterNumber(src->Register)) >= 0) { + _mesa_printf("o[%s]", OutputRegisters[r]); + } + else if ((r = InputRegisterNumber(src->Register)) >= 0) { + _mesa_printf("f[%s]", InputRegisters[r]); + } + else if ((r = ProgramRegisterNumber(src->Register)) >= 0) { + _mesa_printf("p[%d]", r); + } + else if ((r = HalfTempRegisterNumber(src->Register)) >= 0) { + _mesa_printf("H%d", r); + } + else if ((r = TempRegisterNumber(src->Register)) >= 0) { + _mesa_printf("R%d", r); + } + else if ((r = DummyRegisterNumber(src->Register)) >= 0) { + _mesa_printf("%cC", "HR"[r]); + } + else { + _mesa_problem(NULL, "Bad fragment register"); + return; + } + if (src->Swizzle[0] == src->Swizzle[1] && + src->Swizzle[0] == src->Swizzle[2] && + src->Swizzle[0] == src->Swizzle[3]) { + _mesa_printf(".%c", comps[src->Swizzle[0]]); + } + else if (src->Swizzle[0] != 0 || + src->Swizzle[1] != 1 || + src->Swizzle[2] != 2 || + src->Swizzle[3] != 3) { + _mesa_printf(".%c%c%c%c", + comps[src->Swizzle[0]], + comps[src->Swizzle[1]], + comps[src->Swizzle[2]], + comps[src->Swizzle[3]]); + } + if (src->Abs) { + _mesa_printf("|"); + } +} + +static void +PrintCondCode(const struct fp_dst_register *dst) +{ + static const char *comps = "xyzw"; + static const char *ccString[] = { + "??", "GT", "EQ", "LT", "UN", "GE", "LE", "NE", "TR", "FL", "??" + }; + + _mesa_printf("%s", ccString[dst->CondMask]); + if (dst->CondSwizzle[0] == dst->CondSwizzle[1] && + dst->CondSwizzle[0] == dst->CondSwizzle[2] && + dst->CondSwizzle[0] == dst->CondSwizzle[3]) { + _mesa_printf(".%c", comps[dst->CondSwizzle[0]]); + } + else if (dst->CondSwizzle[0] != 0 || + dst->CondSwizzle[1] != 1 || + dst->CondSwizzle[2] != 2 || + dst->CondSwizzle[3] != 3) { + _mesa_printf(".%c%c%c%c", + comps[dst->CondSwizzle[0]], + comps[dst->CondSwizzle[1]], + comps[dst->CondSwizzle[2]], + comps[dst->CondSwizzle[3]]); + } +} + + +static void +PrintDstReg(const struct fp_dst_register *dst) +{ + GLint w = dst->WriteMask[0] + dst->WriteMask[1] + + dst->WriteMask[2] + dst->WriteMask[3]; + GLint r; + + if ((r = OutputRegisterNumber(dst->Register)) >= 0) { + _mesa_printf("o[%s]", OutputRegisters[r]); + } + else if ((r = HalfTempRegisterNumber(dst->Register)) >= 0) { + _mesa_printf("H[%s]", InputRegisters[r]); + } + else if ((r = TempRegisterNumber(dst->Register)) >= 0) { + _mesa_printf("R[%s]", InputRegisters[r]); + } + else if ((r = ProgramRegisterNumber(dst->Register)) >= 0) { + _mesa_printf("p[%d]", r); + } + else if ((r = DummyRegisterNumber(dst->Register)) >= 0) { + _mesa_printf("%cC", "HR"[r]); + } + else { + _mesa_printf("???"); + } + + if (w != 0 && w != 4) { + _mesa_printf("."); + if (dst->WriteMask[0]) + _mesa_printf("x"); + if (dst->WriteMask[1]) + _mesa_printf("y"); + if (dst->WriteMask[2]) + _mesa_printf("z"); + if (dst->WriteMask[3]) + _mesa_printf("w"); + } + + if (dst->CondMask != COND_TR || + dst->CondSwizzle[0] != 0 || + dst->CondSwizzle[1] != 1 || + dst->CondSwizzle[2] != 2 || + dst->CondSwizzle[3] != 3) { + _mesa_printf(" ("); + PrintCondCode(dst); + _mesa_printf(")"); + } +} + + +/** + * Print (unparse) the given vertex program. Just for debugging. + */ +void +_mesa_print_nv_fragment_program(const struct fragment_program *program) +{ + const struct fp_instruction *inst; + + for (inst = program->Instructions; inst->Opcode != FP_OPCODE_END; inst++) { + int i; + for (i = 0; Instructions[i].name; i++) { + if (inst->Opcode == Instructions[i].opcode) { + /* print instruction name */ + _mesa_printf("%s", Instructions[i].name); + if (inst->Precision == HALF) + _mesa_printf("H"); + else if (inst->Precision == FIXED) + _mesa_printf("X"); + if (inst->UpdateCondRegister) + _mesa_printf("C"); + if (inst->Saturate) + _mesa_printf("_SAT"); + _mesa_printf(" "); + + if (Instructions[i].inputs == INPUT_CC) { + PrintCondCode(&inst->DstReg); + } + else if (Instructions[i].outputs == OUTPUT_V || + Instructions[i].outputs == OUTPUT_S) { + /* print dest register */ + PrintDstReg(&inst->DstReg); + _mesa_printf(", "); + } + + /* print source register(s) */ + if (Instructions[i].inputs == INPUT_1V || + Instructions[i].inputs == INPUT_1S) { + PrintSrcReg(&inst->SrcReg[0]); + } + else if (Instructions[i].inputs == INPUT_2V || + Instructions[i].inputs == INPUT_2S) { + PrintSrcReg(&inst->SrcReg[0]); + _mesa_printf(", "); + PrintSrcReg(&inst->SrcReg[1]); + } + else if (Instructions[i].inputs == INPUT_3V) { + PrintSrcReg(&inst->SrcReg[0]); + _mesa_printf(", "); + PrintSrcReg(&inst->SrcReg[1]); + _mesa_printf(", "); + PrintSrcReg(&inst->SrcReg[2]); + } + + _mesa_printf(";\n"); + break; + } + } + if (!Instructions[i].name) { + _mesa_printf("Bad opcode %d\n", inst->Opcode); + } + } +} + |