| /* |
| * Mesa 3-D graphics library |
| * Version: 6.5.2 |
| * |
| * Copyright (C) 1999-2006 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 nvvertparse.c |
| * NVIDIA vertex program parser. |
| * \author Brian Paul |
| */ |
| |
| /* |
| * Regarding GL_NV_vertex_program, GL_NV_vertex_program1_1: |
| * |
| * Portions of this software may use or implement intellectual |
| * property owned and licensed by NVIDIA Corporation. NVIDIA disclaims |
| * any and all warranties with respect to such intellectual property, |
| * including any use thereof or modifications thereto. |
| */ |
| |
| #include "glheader.h" |
| #include "context.h" |
| #include "imports.h" |
| #include "macros.h" |
| #include "nvprogram.h" |
| #include "nvvertparse.h" |
| #include "prog_instruction.h" |
| #include "program.h" |
| |
| |
| /** |
| * Current parsing state. This structure is passed among the parsing |
| * functions and keeps track of the current parser position and various |
| * program attributes. |
| */ |
| struct parse_state { |
| GLcontext *ctx; |
| const GLubyte *start; |
| const GLubyte *pos; |
| const GLubyte *curLine; |
| GLboolean isStateProgram; |
| GLboolean isPositionInvariant; |
| GLboolean isVersion1_1; |
| GLbitfield inputsRead; |
| GLbitfield outputsWritten; |
| GLboolean anyProgRegsWritten; |
| GLuint numInst; /* number of instructions parsed */ |
| }; |
| |
| |
| /* |
| * Called whenever we find an error during parsing. |
| */ |
| static void |
| record_error(struct parse_state *parseState, const char *msg, int lineNo) |
| { |
| #ifdef DEBUG |
| GLint line, column; |
| const GLubyte *lineStr; |
| lineStr = _mesa_find_line_column(parseState->start, |
| parseState->pos, &line, &column); |
| _mesa_debug(parseState->ctx, |
| "nvfragparse.c(%d): line %d, column %d:%s (%s)\n", |
| lineNo, line, column, (char *) lineStr, msg); |
| _mesa_free((void *) lineStr); |
| #else |
| (void) lineNo; |
| #endif |
| |
| /* Check that no error was already recorded. Only record the first one. */ |
| if (parseState->ctx->Program.ErrorString[0] == 0) { |
| _mesa_set_program_error(parseState->ctx, |
| parseState->pos - parseState->start, |
| msg); |
| } |
| } |
| |
| |
| #define RETURN_ERROR \ |
| do { \ |
| record_error(parseState, "Unexpected end of input.", __LINE__); \ |
| return GL_FALSE; \ |
| } while(0) |
| |
| #define RETURN_ERROR1(msg) \ |
| do { \ |
| record_error(parseState, msg, __LINE__); \ |
| return GL_FALSE; \ |
| } while(0) |
| |
| #define RETURN_ERROR2(msg1, msg2) \ |
| do { \ |
| char err[1000]; \ |
| _mesa_sprintf(err, "%s %s", msg1, msg2); \ |
| record_error(parseState, err, __LINE__); \ |
| return GL_FALSE; \ |
| } while(0) |
| |
| |
| |
| |
| |
| static GLboolean IsLetter(GLubyte b) |
| { |
| return (b >= 'a' && b <= 'z') || (b >= 'A' && b <= 'Z'); |
| } |
| |
| |
| static GLboolean IsDigit(GLubyte b) |
| { |
| return b >= '0' && b <= '9'; |
| } |
| |
| |
| static GLboolean IsWhitespace(GLubyte 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(struct parse_state *parseState, GLubyte *token) |
| { |
| const GLubyte *str = parseState->pos; |
| 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++; |
| } |
| if (str[i] == '\n' || str[i] == '\r') |
| parseState->curLine = str + i + 1; |
| } |
| else { |
| /* skip whitespace */ |
| if (str[i] == '\n' || str[i] == '\r') |
| parseState->curLine = str + i + 1; |
| 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 character */ |
| 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(struct parse_state *parseState, GLubyte *token) |
| { |
| GLint i; |
| i = GetToken(parseState, token); |
| if (i <= 0) { |
| parseState->pos += (-i); |
| return GL_FALSE; |
| } |
| parseState->pos += i; |
| return GL_TRUE; |
| } |
| |
| |
| /** |
| * Get next token from input stream but don't increment stream pointer. |
| */ |
| static GLboolean |
| Peek_Token(struct parse_state *parseState, GLubyte *token) |
| { |
| GLint i, len; |
| i = GetToken(parseState, token); |
| if (i <= 0) { |
| parseState->pos += (-i); |
| return GL_FALSE; |
| } |
| len = (GLint)_mesa_strlen((const char *) token); |
| parseState->pos += (i - len); |
| return GL_TRUE; |
| } |
| |
| |
| /** |
| * Try to match 'pattern' as the next token after any whitespace/comments. |
| * Advance the current parsing position only if we match the pattern. |
| * \return GL_TRUE if pattern is matched, GL_FALSE otherwise. |
| */ |
| static GLboolean |
| Parse_String(struct parse_state *parseState, const char *pattern) |
| { |
| const GLubyte *m; |
| GLint i; |
| |
| /* skip whitespace and comments */ |
| while (IsWhitespace(*parseState->pos) || *parseState->pos == '#') { |
| if (*parseState->pos == '#') { |
| while (*parseState->pos && (*parseState->pos != '\n' && *parseState->pos != '\r')) { |
| parseState->pos += 1; |
| } |
| if (*parseState->pos == '\n' || *parseState->pos == '\r') |
| parseState->curLine = parseState->pos + 1; |
| } |
| else { |
| /* skip whitespace */ |
| if (*parseState->pos == '\n' || *parseState->pos == '\r') |
| parseState->curLine = parseState->pos + 1; |
| parseState->pos += 1; |
| } |
| } |
| |
| /* Try to match the pattern */ |
| m = parseState->pos; |
| for (i = 0; pattern[i]; i++) { |
| if (*m != (GLubyte) pattern[i]) |
| return GL_FALSE; |
| m += 1; |
| } |
| parseState->pos = m; |
| |
| return GL_TRUE; /* success */ |
| } |
| |
| |
| /**********************************************************************/ |
| |
| static const char *InputRegisters[MAX_NV_VERTEX_PROGRAM_INPUTS + 1] = { |
| "OPOS", "WGHT", "NRML", "COL0", "COL1", "FOGC", "6", "7", |
| "TEX0", "TEX1", "TEX2", "TEX3", "TEX4", "TEX5", "TEX6", "TEX7", NULL |
| }; |
| |
| static const char *OutputRegisters[MAX_NV_VERTEX_PROGRAM_OUTPUTS + 1] = { |
| "HPOS", "COL0", "COL1", "FOGC", |
| "TEX0", "TEX1", "TEX2", "TEX3", "TEX4", "TEX5", "TEX6", "TEX7", |
| "PSIZ", "BFC0", "BFC1", NULL |
| }; |
| |
| |
| |
| /** |
| * Parse a temporary register: Rnn |
| */ |
| static GLboolean |
| Parse_TempReg(struct parse_state *parseState, GLint *tempRegNum) |
| { |
| GLubyte token[100]; |
| |
| /* Should be 'R##' */ |
| if (!Parse_Token(parseState, token)) |
| RETURN_ERROR; |
| if (token[0] != 'R') |
| RETURN_ERROR1("Expected R##"); |
| |
| if (IsDigit(token[1])) { |
| GLint reg = _mesa_atoi((char *) (token + 1)); |
| if (reg >= MAX_NV_VERTEX_PROGRAM_TEMPS) |
| RETURN_ERROR1("Bad temporary register name"); |
| *tempRegNum = reg; |
| } |
| else { |
| RETURN_ERROR1("Bad temporary register name"); |
| } |
| |
| return GL_TRUE; |
| } |
| |
| |
| /** |
| * Parse address register "A0.x" |
| */ |
| static GLboolean |
| Parse_AddrReg(struct parse_state *parseState) |
| { |
| /* match 'A0' */ |
| if (!Parse_String(parseState, "A0")) |
| RETURN_ERROR; |
| |
| /* match '.' */ |
| if (!Parse_String(parseState, ".")) |
| RETURN_ERROR; |
| |
| /* match 'x' */ |
| if (!Parse_String(parseState, "x")) |
| RETURN_ERROR; |
| |
| return GL_TRUE; |
| } |
| |
| |
| /** |
| * Parse absolute program parameter register "c[##]" |
| */ |
| static GLboolean |
| Parse_AbsParamReg(struct parse_state *parseState, GLint *regNum) |
| { |
| GLubyte token[100]; |
| |
| if (!Parse_String(parseState, "c")) |
| RETURN_ERROR; |
| |
| if (!Parse_String(parseState, "[")) |
| RETURN_ERROR; |
| |
| if (!Parse_Token(parseState, token)) |
| RETURN_ERROR; |
| |
| if (IsDigit(token[0])) { |
| /* a numbered program parameter register */ |
| GLint reg = _mesa_atoi((char *) token); |
| if (reg >= MAX_NV_VERTEX_PROGRAM_PARAMS) |
| RETURN_ERROR1("Bad program parameter number"); |
| *regNum = reg; |
| } |
| else { |
| RETURN_ERROR; |
| } |
| |
| if (!Parse_String(parseState, "]")) |
| RETURN_ERROR; |
| |
| return GL_TRUE; |
| } |
| |
| |
| static GLboolean |
| Parse_ParamReg(struct parse_state *parseState, struct prog_src_register *srcReg) |
| { |
| GLubyte token[100]; |
| |
| if (!Parse_String(parseState, "c")) |
| RETURN_ERROR; |
| |
| if (!Parse_String(parseState, "[")) |
| RETURN_ERROR; |
| |
| if (!Peek_Token(parseState, token)) |
| RETURN_ERROR; |
| |
| if (IsDigit(token[0])) { |
| /* a numbered program parameter register */ |
| GLint reg; |
| (void) Parse_Token(parseState, token); |
| reg = _mesa_atoi((char *) token); |
| if (reg >= MAX_NV_VERTEX_PROGRAM_PARAMS) |
| RETURN_ERROR1("Bad program parameter number"); |
| srcReg->File = PROGRAM_ENV_PARAM; |
| srcReg->Index = reg; |
| } |
| else if (_mesa_strcmp((const char *) token, "A0") == 0) { |
| /* address register "A0.x" */ |
| if (!Parse_AddrReg(parseState)) |
| RETURN_ERROR; |
| |
| srcReg->RelAddr = GL_TRUE; |
| srcReg->File = PROGRAM_ENV_PARAM; |
| /* Look for +/-N offset */ |
| if (!Peek_Token(parseState, token)) |
| RETURN_ERROR; |
| |
| if (token[0] == '-' || token[0] == '+') { |
| const GLubyte sign = token[0]; |
| (void) Parse_Token(parseState, token); /* consume +/- */ |
| |
| /* an integer should be next */ |
| if (!Parse_Token(parseState, token)) |
| RETURN_ERROR; |
| |
| if (IsDigit(token[0])) { |
| const GLint k = _mesa_atoi((char *) token); |
| if (sign == '-') { |
| if (k > 64) |
| RETURN_ERROR1("Bad address offset"); |
| srcReg->Index = -k; |
| } |
| else { |
| if (k > 63) |
| RETURN_ERROR1("Bad address offset"); |
| srcReg->Index = k; |
| } |
| } |
| else { |
| RETURN_ERROR; |
| } |
| } |
| else { |
| /* probably got a ']', catch it below */ |
| } |
| } |
| else { |
| RETURN_ERROR; |
| } |
| |
| /* Match closing ']' */ |
| if (!Parse_String(parseState, "]")) |
| RETURN_ERROR; |
| |
| return GL_TRUE; |
| } |
| |
| |
| /** |
| * Parse v[#] or v[<name>] |
| */ |
| static GLboolean |
| Parse_AttribReg(struct parse_state *parseState, GLint *tempRegNum) |
| { |
| GLubyte token[100]; |
| GLint j; |
| |
| /* Match 'v' */ |
| if (!Parse_String(parseState, "v")) |
| RETURN_ERROR; |
| |
| /* Match '[' */ |
| if (!Parse_String(parseState, "[")) |
| RETURN_ERROR; |
| |
| /* match number or named register */ |
| if (!Parse_Token(parseState, token)) |
| RETURN_ERROR; |
| |
| if (parseState->isStateProgram && token[0] != '0') |
| RETURN_ERROR1("Only v[0] accessible in vertex state programs"); |
| |
| if (IsDigit(token[0])) { |
| GLint reg = _mesa_atoi((char *) token); |
| if (reg >= MAX_NV_VERTEX_PROGRAM_INPUTS) |
| RETURN_ERROR1("Bad vertex attribute register name"); |
| *tempRegNum = reg; |
| } |
| else { |
| for (j = 0; InputRegisters[j]; j++) { |
| if (_mesa_strcmp((const char *) token, InputRegisters[j]) == 0) { |
| *tempRegNum = j; |
| break; |
| } |
| } |
| if (!InputRegisters[j]) { |
| /* unknown input register label */ |
| RETURN_ERROR2("Bad register name", token); |
| } |
| } |
| |
| /* Match '[' */ |
| if (!Parse_String(parseState, "]")) |
| RETURN_ERROR; |
| |
| return GL_TRUE; |
| } |
| |
| |
| static GLboolean |
| Parse_OutputReg(struct parse_state *parseState, GLint *outputRegNum) |
| { |
| GLubyte token[100]; |
| GLint start, j; |
| |
| /* Match 'o' */ |
| if (!Parse_String(parseState, "o")) |
| RETURN_ERROR; |
| |
| /* Match '[' */ |
| if (!Parse_String(parseState, "[")) |
| RETURN_ERROR; |
| |
| /* Get output reg name */ |
| if (!Parse_Token(parseState, token)) |
| RETURN_ERROR; |
| |
| if (parseState->isPositionInvariant) |
| start = 1; /* skip HPOS register name */ |
| else |
| start = 0; |
| |
| /* try to match an output register name */ |
| for (j = start; OutputRegisters[j]; j++) { |
| if (_mesa_strcmp((const char *) token, OutputRegisters[j]) == 0) { |
| *outputRegNum = j; |
| break; |
| } |
| } |
| if (!OutputRegisters[j]) |
| RETURN_ERROR1("Unrecognized output register name"); |
| |
| /* Match ']' */ |
| if (!Parse_String(parseState, "]")) |
| RETURN_ERROR1("Expected ]"); |
| |
| return GL_TRUE; |
| } |
| |
| |
| static GLboolean |
| Parse_MaskedDstReg(struct parse_state *parseState, struct prog_dst_register *dstReg) |
| { |
| GLubyte token[100]; |
| GLint idx; |
| |
| /* Dst reg can be R<n> or o[n] */ |
| if (!Peek_Token(parseState, token)) |
| RETURN_ERROR; |
| |
| if (token[0] == 'R') { |
| /* a temporary register */ |
| dstReg->File = PROGRAM_TEMPORARY; |
| if (!Parse_TempReg(parseState, &idx)) |
| RETURN_ERROR; |
| dstReg->Index = idx; |
| } |
| else if (!parseState->isStateProgram && token[0] == 'o') { |
| /* an output register */ |
| dstReg->File = PROGRAM_OUTPUT; |
| if (!Parse_OutputReg(parseState, &idx)) |
| RETURN_ERROR; |
| dstReg->Index = idx; |
| } |
| else if (parseState->isStateProgram && token[0] == 'c' && |
| parseState->isStateProgram) { |
| /* absolute program parameter register */ |
| /* Only valid for vertex state programs */ |
| dstReg->File = PROGRAM_ENV_PARAM; |
| if (!Parse_AbsParamReg(parseState, &idx)) |
| RETURN_ERROR; |
| dstReg->Index = idx; |
| } |
| else { |
| RETURN_ERROR1("Bad destination register name"); |
| } |
| |
| /* Parse optional write mask */ |
| if (!Peek_Token(parseState, token)) |
| RETURN_ERROR; |
| |
| if (token[0] == '.') { |
| /* got a mask */ |
| GLint k = 0; |
| |
| if (!Parse_String(parseState, ".")) |
| RETURN_ERROR; |
| |
| if (!Parse_Token(parseState, token)) |
| RETURN_ERROR; |
| |
| dstReg->WriteMask = 0; |
| |
| if (token[k] == 'x') { |
| dstReg->WriteMask |= WRITEMASK_X; |
| k++; |
| } |
| if (token[k] == 'y') { |
| dstReg->WriteMask |= WRITEMASK_Y; |
| k++; |
| } |
| if (token[k] == 'z') { |
| dstReg->WriteMask |= WRITEMASK_Z; |
| k++; |
| } |
| if (token[k] == 'w') { |
| dstReg->WriteMask |= WRITEMASK_W; |
| k++; |
| } |
| if (k == 0) { |
| RETURN_ERROR1("Bad writemask character"); |
| } |
| return GL_TRUE; |
| } |
| else { |
| dstReg->WriteMask = WRITEMASK_XYZW; |
| return GL_TRUE; |
| } |
| } |
| |
| |
| static GLboolean |
| Parse_SwizzleSrcReg(struct parse_state *parseState, struct prog_src_register *srcReg) |
| { |
| GLubyte token[100]; |
| GLint idx; |
| |
| srcReg->RelAddr = GL_FALSE; |
| |
| /* check for '-' */ |
| if (!Peek_Token(parseState, token)) |
| RETURN_ERROR; |
| if (token[0] == '-') { |
| (void) Parse_String(parseState, "-"); |
| srcReg->NegateBase = NEGATE_XYZW; |
| if (!Peek_Token(parseState, token)) |
| RETURN_ERROR; |
| } |
| else { |
| srcReg->NegateBase = NEGATE_NONE; |
| } |
| |
| /* Src reg can be R<n>, c[n], c[n +/- offset], or a named vertex attrib */ |
| if (token[0] == 'R') { |
| srcReg->File = PROGRAM_TEMPORARY; |
| if (!Parse_TempReg(parseState, &idx)) |
| RETURN_ERROR; |
| srcReg->Index = idx; |
| } |
| else if (token[0] == 'c') { |
| if (!Parse_ParamReg(parseState, srcReg)) |
| RETURN_ERROR; |
| } |
| else if (token[0] == 'v') { |
| srcReg->File = PROGRAM_INPUT; |
| if (!Parse_AttribReg(parseState, &idx)) |
| RETURN_ERROR; |
| srcReg->Index = idx; |
| } |
| else { |
| RETURN_ERROR2("Bad source register name", token); |
| } |
| |
| /* init swizzle fields */ |
| srcReg->Swizzle = SWIZZLE_NOOP; |
| |
| /* Look for optional swizzle suffix */ |
| if (!Peek_Token(parseState, token)) |
| RETURN_ERROR; |
| if (token[0] == '.') { |
| (void) Parse_String(parseState, "."); /* consume . */ |
| |
| if (!Parse_Token(parseState, token)) |
| RETURN_ERROR; |
| |
| if (token[1] == 0) { |
| /* single letter swizzle */ |
| if (token[0] == 'x') |
| srcReg->Swizzle = SWIZZLE_XXXX; |
| else if (token[0] == 'y') |
| srcReg->Swizzle = SWIZZLE_YYYY; |
| else if (token[0] == 'z') |
| srcReg->Swizzle = SWIZZLE_ZZZZ; |
| else if (token[0] == 'w') |
| srcReg->Swizzle = SWIZZLE_WWWW; |
| else |
| RETURN_ERROR1("Expected x, y, z, or w"); |
| } |
| else { |
| /* 2, 3 or 4-component swizzle */ |
| GLint k; |
| |
| srcReg->Swizzle = 0; |
| |
| for (k = 0; token[k] && k < 5; k++) { |
| if (token[k] == 'x') |
| srcReg->Swizzle |= 0 << (k*3); |
| else if (token[k] == 'y') |
| srcReg->Swizzle |= 1 << (k*3); |
| else if (token[k] == 'z') |
| srcReg->Swizzle |= 2 << (k*3); |
| else if (token[k] == 'w') |
| srcReg->Swizzle |= 3 << (k*3); |
| else |
| RETURN_ERROR; |
| } |
| if (k >= 5) |
| RETURN_ERROR; |
| } |
| } |
| |
| return GL_TRUE; |
| } |
| |
| |
| static GLboolean |
| Parse_ScalarSrcReg(struct parse_state *parseState, struct prog_src_register *srcReg) |
| { |
| GLubyte token[100]; |
| GLint idx; |
| |
| srcReg->RelAddr = GL_FALSE; |
| |
| /* check for '-' */ |
| if (!Peek_Token(parseState, token)) |
| RETURN_ERROR; |
| if (token[0] == '-') { |
| srcReg->NegateBase = NEGATE_XYZW; |
| (void) Parse_String(parseState, "-"); /* consume '-' */ |
| if (!Peek_Token(parseState, token)) |
| RETURN_ERROR; |
| } |
| else { |
| srcReg->NegateBase = NEGATE_NONE; |
| } |
| |
| /* Src reg can be R<n>, c[n], c[n +/- offset], or a named vertex attrib */ |
| if (token[0] == 'R') { |
| srcReg->File = PROGRAM_TEMPORARY; |
| if (!Parse_TempReg(parseState, &idx)) |
| RETURN_ERROR; |
| srcReg->Index = idx; |
| } |
| else if (token[0] == 'c') { |
| if (!Parse_ParamReg(parseState, srcReg)) |
| RETURN_ERROR; |
| } |
| else if (token[0] == 'v') { |
| srcReg->File = PROGRAM_INPUT; |
| if (!Parse_AttribReg(parseState, &idx)) |
| RETURN_ERROR; |
| srcReg->Index = idx; |
| } |
| else { |
| RETURN_ERROR2("Bad source register name", token); |
| } |
| |
| /* Look for .[xyzw] suffix */ |
| if (!Parse_String(parseState, ".")) |
| RETURN_ERROR; |
| |
| if (!Parse_Token(parseState, token)) |
| RETURN_ERROR; |
| |
| if (token[0] == 'x' && token[1] == 0) { |
| srcReg->Swizzle = 0; |
| } |
| else if (token[0] == 'y' && token[1] == 0) { |
| srcReg->Swizzle = 1; |
| } |
| else if (token[0] == 'z' && token[1] == 0) { |
| srcReg->Swizzle = 2; |
| } |
| else if (token[0] == 'w' && token[1] == 0) { |
| srcReg->Swizzle = 3; |
| } |
| else { |
| RETURN_ERROR1("Bad scalar source suffix"); |
| } |
| |
| return GL_TRUE; |
| } |
| |
| |
| static GLint |
| Parse_UnaryOpInstruction(struct parse_state *parseState, |
| struct prog_instruction *inst, |
| enum prog_opcode opcode) |
| { |
| if (opcode == OPCODE_ABS && !parseState->isVersion1_1) |
| RETURN_ERROR1("ABS illegal for vertex program 1.0"); |
| |
| inst->Opcode = opcode; |
| inst->StringPos = parseState->curLine - parseState->start; |
| |
| /* dest reg */ |
| if (!Parse_MaskedDstReg(parseState, &inst->DstReg)) |
| RETURN_ERROR; |
| |
| /* comma */ |
| if (!Parse_String(parseState, ",")) |
| RETURN_ERROR; |
| |
| /* src arg */ |
| if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[0])) |
| RETURN_ERROR; |
| |
| /* semicolon */ |
| if (!Parse_String(parseState, ";")) |
| RETURN_ERROR; |
| |
| return GL_TRUE; |
| } |
| |
| |
| static GLboolean |
| Parse_BiOpInstruction(struct parse_state *parseState, |
| struct prog_instruction *inst, |
| enum prog_opcode opcode) |
| { |
| if (opcode == OPCODE_DPH && !parseState->isVersion1_1) |
| RETURN_ERROR1("DPH illegal for vertex program 1.0"); |
| if (opcode == OPCODE_SUB && !parseState->isVersion1_1) |
| RETURN_ERROR1("SUB illegal for vertex program 1.0"); |
| |
| inst->Opcode = opcode; |
| inst->StringPos = parseState->curLine - parseState->start; |
| |
| /* dest reg */ |
| if (!Parse_MaskedDstReg(parseState, &inst->DstReg)) |
| RETURN_ERROR; |
| |
| /* comma */ |
| if (!Parse_String(parseState, ",")) |
| RETURN_ERROR; |
| |
| /* first src arg */ |
| if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[0])) |
| RETURN_ERROR; |
| |
| /* comma */ |
| if (!Parse_String(parseState, ",")) |
| RETURN_ERROR; |
| |
| /* second src arg */ |
| if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[1])) |
| RETURN_ERROR; |
| |
| /* semicolon */ |
| if (!Parse_String(parseState, ";")) |
| RETURN_ERROR; |
| |
| /* make sure we don't reference more than one program parameter register */ |
| if (inst->SrcReg[0].File == PROGRAM_ENV_PARAM && |
| inst->SrcReg[1].File == PROGRAM_ENV_PARAM && |
| inst->SrcReg[0].Index != inst->SrcReg[1].Index) |
| RETURN_ERROR1("Can't reference two program parameter registers"); |
| |
| /* make sure we don't reference more than one vertex attribute register */ |
| if (inst->SrcReg[0].File == PROGRAM_INPUT && |
| inst->SrcReg[1].File == PROGRAM_INPUT && |
| inst->SrcReg[0].Index != inst->SrcReg[1].Index) |
| RETURN_ERROR1("Can't reference two vertex attribute registers"); |
| |
| return GL_TRUE; |
| } |
| |
| |
| static GLboolean |
| Parse_TriOpInstruction(struct parse_state *parseState, |
| struct prog_instruction *inst, |
| enum prog_opcode opcode) |
| { |
| inst->Opcode = opcode; |
| inst->StringPos = parseState->curLine - parseState->start; |
| |
| /* dest reg */ |
| if (!Parse_MaskedDstReg(parseState, &inst->DstReg)) |
| RETURN_ERROR; |
| |
| /* comma */ |
| if (!Parse_String(parseState, ",")) |
| RETURN_ERROR; |
| |
| /* first src arg */ |
| if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[0])) |
| RETURN_ERROR; |
| |
| /* comma */ |
| if (!Parse_String(parseState, ",")) |
| RETURN_ERROR; |
| |
| /* second src arg */ |
| if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[1])) |
| RETURN_ERROR; |
| |
| /* comma */ |
| if (!Parse_String(parseState, ",")) |
| RETURN_ERROR; |
| |
| /* third src arg */ |
| if (!Parse_SwizzleSrcReg(parseState, &inst->SrcReg[2])) |
| RETURN_ERROR; |
| |
| /* semicolon */ |
| if (!Parse_String(parseState, ";")) |
| RETURN_ERROR; |
| |
| /* make sure we don't reference more than one program parameter register */ |
| if ((inst->SrcReg[0].File == PROGRAM_ENV_PARAM && |
| inst->SrcReg[1].File == PROGRAM_ENV_PARAM && |
| inst->SrcReg[0].Index != inst->SrcReg[1].Index) || |
| (inst->SrcReg[0].File == PROGRAM_ENV_PARAM && |
| inst->SrcReg[2].File == PROGRAM_ENV_PARAM && |
| inst->SrcReg[0].Index != inst->SrcReg[2].Index) || |
| (inst->SrcReg[1].File == PROGRAM_ENV_PARAM && |
| inst->SrcReg[2].File == PROGRAM_ENV_PARAM && |
| inst->SrcReg[1].Index != inst->SrcReg[2].Index)) |
| RETURN_ERROR1("Can only reference one program register"); |
| |
| /* make sure we don't reference more than one vertex attribute register */ |
| if ((inst->SrcReg[0].File == PROGRAM_INPUT && |
| inst->SrcReg[1].File == PROGRAM_INPUT && |
| inst->SrcReg[0].Index != inst->SrcReg[1].Index) || |
| (inst->SrcReg[0].File == PROGRAM_INPUT && |
| inst->SrcReg[2].File == PROGRAM_INPUT && |
| inst->SrcReg[0].Index != inst->SrcReg[2].Index) || |
| (inst->SrcReg[1].File == PROGRAM_INPUT && |
| inst->SrcReg[2].File == PROGRAM_INPUT && |
| inst->SrcReg[1].Index != inst->SrcReg[2].Index)) |
| RETURN_ERROR1("Can only reference one input register"); |
| |
| return GL_TRUE; |
| } |
| |
| |
| static GLboolean |
| Parse_ScalarInstruction(struct parse_state *parseState, |
| struct prog_instruction *inst, |
| enum prog_opcode opcode) |
| { |
| if (opcode == OPCODE_RCC && !parseState->isVersion1_1) |
| RETURN_ERROR1("RCC illegal for vertex program 1.0"); |
| |
| inst->Opcode = opcode; |
| inst->StringPos = parseState->curLine - parseState->start; |
| |
| /* dest reg */ |
| if (!Parse_MaskedDstReg(parseState, &inst->DstReg)) |
| RETURN_ERROR; |
| |
| /* comma */ |
| if (!Parse_String(parseState, ",")) |
| RETURN_ERROR; |
| |
| /* first src arg */ |
| if (!Parse_ScalarSrcReg(parseState, &inst->SrcReg[0])) |
| RETURN_ERROR; |
| |
| /* semicolon */ |
| if (!Parse_String(parseState, ";")) |
| RETURN_ERROR; |
| |
| return GL_TRUE; |
| } |
| |
| |
| static GLboolean |
| Parse_AddressInstruction(struct parse_state *parseState, struct prog_instruction *inst) |
| { |
| inst->Opcode = OPCODE_ARL; |
| inst->StringPos = parseState->curLine - parseState->start; |
| |
| /* Make ARB_vp backends happy */ |
| inst->DstReg.File = PROGRAM_ADDRESS; |
| inst->DstReg.WriteMask = WRITEMASK_X; |
| inst->DstReg.Index = 0; |
| |
| /* dest A0 reg */ |
| if (!Parse_AddrReg(parseState)) |
| RETURN_ERROR; |
| |
| /* comma */ |
| if (!Parse_String(parseState, ",")) |
| RETURN_ERROR; |
| |
| /* parse src reg */ |
| if (!Parse_ScalarSrcReg(parseState, &inst->SrcReg[0])) |
| RETURN_ERROR; |
| |
| /* semicolon */ |
| if (!Parse_String(parseState, ";")) |
| RETURN_ERROR; |
| |
| return GL_TRUE; |
| } |
| |
| |
| static GLboolean |
| Parse_EndInstruction(struct parse_state *parseState, struct prog_instruction *inst) |
| { |
| GLubyte token[100]; |
| |
| inst->Opcode = OPCODE_END; |
| inst->StringPos = parseState->curLine - parseState->start; |
| |
| /* this should fail! */ |
| if (Parse_Token(parseState, token)) |
| RETURN_ERROR2("Unexpected token after END:", token); |
| else |
| return GL_TRUE; |
| } |
| |
| |
| /** |
| * The PRINT instruction is Mesa-specific and is meant as a debugging aid for |
| * the vertex program developer. |
| * The NV_vertex_program extension grammar is modified as follows: |
| * |
| * <instruction> ::= <ARL-instruction> |
| * | ... |
| * | <PRINT-instruction> |
| * |
| * <PRINT-instruction> ::= "PRINT" <string literal> |
| * | "PRINT" <string literal> "," <srcReg> |
| * | "PRINT" <string literal> "," <dstReg> |
| */ |
| static GLboolean |
| Parse_PrintInstruction(struct parse_state *parseState, struct prog_instruction *inst) |
| { |
| const GLubyte *str; |
| GLubyte *msg; |
| GLuint len; |
| GLubyte token[100]; |
| struct prog_src_register *srcReg = &inst->SrcReg[0]; |
| GLint idx; |
| |
| inst->Opcode = OPCODE_PRINT; |
| inst->StringPos = parseState->curLine - parseState->start; |
| |
| /* The first argument is a literal string 'just like this' */ |
| if (!Parse_String(parseState, "'")) |
| RETURN_ERROR; |
| |
| str = parseState->pos; |
| for (len = 0; str[len] != '\''; len++) /* find closing quote */ |
| ; |
| parseState->pos += len + 1; |
| msg = (GLubyte*) _mesa_malloc(len + 1); |
| |
| _mesa_memcpy(msg, str, len); |
| msg[len] = 0; |
| inst->Data = msg; |
| |
| /* comma */ |
| if (Parse_String(parseState, ",")) { |
| |
| /* The second argument is a register name */ |
| if (!Peek_Token(parseState, token)) |
| RETURN_ERROR; |
| |
| srcReg->RelAddr = GL_FALSE; |
| srcReg->NegateBase = NEGATE_NONE; |
| srcReg->Swizzle = SWIZZLE_NOOP; |
| |
| /* Register can be R<n>, c[n], c[n +/- offset], a named vertex attrib, |
| * or an o[n] output register. |
| */ |
| if (token[0] == 'R') { |
| srcReg->File = PROGRAM_TEMPORARY; |
| if (!Parse_TempReg(parseState, &idx)) |
| RETURN_ERROR; |
| srcReg->Index = idx; |
| } |
| else if (token[0] == 'c') { |
| srcReg->File = PROGRAM_ENV_PARAM; |
| if (!Parse_ParamReg(parseState, srcReg)) |
| RETURN_ERROR; |
| } |
| else if (token[0] == 'v') { |
| srcReg->File = PROGRAM_INPUT; |
| if (!Parse_AttribReg(parseState, &idx)) |
| RETURN_ERROR; |
| srcReg->Index = idx; |
| } |
| else if (token[0] == 'o') { |
| srcReg->File = PROGRAM_OUTPUT; |
| if (!Parse_OutputReg(parseState, &idx)) |
| RETURN_ERROR; |
| srcReg->Index = idx; |
| } |
| else { |
| RETURN_ERROR2("Bad source register name", token); |
| } |
| } |
| else { |
| srcReg->File = 0; |
| } |
| |
| /* semicolon */ |
| if (!Parse_String(parseState, ";")) |
| RETURN_ERROR; |
| |
| return GL_TRUE; |
| } |
| |
| |
| static GLboolean |
| Parse_OptionSequence(struct parse_state *parseState, |
| struct prog_instruction program[]) |
| { |
| (void) program; |
| while (1) { |
| if (!Parse_String(parseState, "OPTION")) |
| return GL_TRUE; /* ok, not an OPTION statement */ |
| if (Parse_String(parseState, "NV_position_invariant")) { |
| parseState->isPositionInvariant = GL_TRUE; |
| } |
| else { |
| RETURN_ERROR1("unexpected OPTION statement"); |
| } |
| if (!Parse_String(parseState, ";")) |
| return GL_FALSE; |
| } |
| } |
| |
| |
| static GLboolean |
| Parse_InstructionSequence(struct parse_state *parseState, |
| struct prog_instruction program[]) |
| { |
| while (1) { |
| struct prog_instruction *inst = program + parseState->numInst; |
| |
| /* Initialize the instruction */ |
| _mesa_init_instructions(inst, 1); |
| |
| if (Parse_String(parseState, "MOV")) { |
| if (!Parse_UnaryOpInstruction(parseState, inst, OPCODE_MOV)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "LIT")) { |
| if (!Parse_UnaryOpInstruction(parseState, inst, OPCODE_LIT)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "ABS")) { |
| if (!Parse_UnaryOpInstruction(parseState, inst, OPCODE_ABS)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "MUL")) { |
| if (!Parse_BiOpInstruction(parseState, inst, OPCODE_MUL)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "ADD")) { |
| if (!Parse_BiOpInstruction(parseState, inst, OPCODE_ADD)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "DP3")) { |
| if (!Parse_BiOpInstruction(parseState, inst, OPCODE_DP3)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "DP4")) { |
| if (!Parse_BiOpInstruction(parseState, inst, OPCODE_DP4)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "DST")) { |
| if (!Parse_BiOpInstruction(parseState, inst, OPCODE_DST)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "MIN")) { |
| if (!Parse_BiOpInstruction(parseState, inst, OPCODE_MIN)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "MAX")) { |
| if (!Parse_BiOpInstruction(parseState, inst, OPCODE_MAX)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "SLT")) { |
| if (!Parse_BiOpInstruction(parseState, inst, OPCODE_SLT)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "SGE")) { |
| if (!Parse_BiOpInstruction(parseState, inst, OPCODE_SGE)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "DPH")) { |
| if (!Parse_BiOpInstruction(parseState, inst, OPCODE_DPH)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "SUB")) { |
| if (!Parse_BiOpInstruction(parseState, inst, OPCODE_SUB)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "MAD")) { |
| if (!Parse_TriOpInstruction(parseState, inst, OPCODE_MAD)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "RCP")) { |
| if (!Parse_ScalarInstruction(parseState, inst, OPCODE_RCP)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "RSQ")) { |
| if (!Parse_ScalarInstruction(parseState, inst, OPCODE_RSQ)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "EXP")) { |
| if (!Parse_ScalarInstruction(parseState, inst, OPCODE_EXP)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "LOG")) { |
| if (!Parse_ScalarInstruction(parseState, inst, OPCODE_LOG)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "RCC")) { |
| if (!Parse_ScalarInstruction(parseState, inst, OPCODE_RCC)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "ARL")) { |
| if (!Parse_AddressInstruction(parseState, inst)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "PRINT")) { |
| if (!Parse_PrintInstruction(parseState, inst)) |
| RETURN_ERROR; |
| } |
| else if (Parse_String(parseState, "END")) { |
| if (!Parse_EndInstruction(parseState, inst)) |
| RETURN_ERROR; |
| else { |
| parseState->numInst++; |
| return GL_TRUE; /* all done */ |
| } |
| } |
| else { |
| /* bad instruction name */ |
| RETURN_ERROR1("Unexpected token"); |
| } |
| |
| /* examine input/output registers */ |
| if (inst->DstReg.File == PROGRAM_OUTPUT) |
| parseState->outputsWritten |= (1 << inst->DstReg.Index); |
| else if (inst->DstReg.File == PROGRAM_ENV_PARAM) |
| parseState->anyProgRegsWritten = GL_TRUE; |
| |
| if (inst->SrcReg[0].File == PROGRAM_INPUT) |
| parseState->inputsRead |= (1 << inst->SrcReg[0].Index); |
| if (inst->SrcReg[1].File == PROGRAM_INPUT) |
| parseState->inputsRead |= (1 << inst->SrcReg[1].Index); |
| if (inst->SrcReg[2].File == PROGRAM_INPUT) |
| parseState->inputsRead |= (1 << inst->SrcReg[2].Index); |
| |
| parseState->numInst++; |
| |
| if (parseState->numInst >= MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS) |
| RETURN_ERROR1("Program too long"); |
| } |
| |
| RETURN_ERROR; |
| } |
| |
| |
| static GLboolean |
| Parse_Program(struct parse_state *parseState, |
| struct prog_instruction instBuffer[]) |
| { |
| if (parseState->isVersion1_1) { |
| if (!Parse_OptionSequence(parseState, instBuffer)) { |
| return GL_FALSE; |
| } |
| } |
| return Parse_InstructionSequence(parseState, 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_vertex_program(GLcontext *ctx, GLenum dstTarget, |
| const GLubyte *str, GLsizei len, |
| struct gl_vertex_program *program) |
| { |
| struct parse_state parseState; |
| struct prog_instruction instBuffer[MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS]; |
| struct prog_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; |
| |
| /* Get ready to parse */ |
| parseState.ctx = ctx; |
| parseState.start = programString; |
| parseState.isPositionInvariant = GL_FALSE; |
| parseState.isVersion1_1 = GL_FALSE; |
| parseState.numInst = 0; |
| parseState.inputsRead = 0; |
| parseState.outputsWritten = 0; |
| parseState.anyProgRegsWritten = GL_FALSE; |
| |
| /* Reset error state */ |
| _mesa_set_program_error(ctx, -1, NULL); |
| |
| /* check the program header */ |
| if (_mesa_strncmp((const char *) programString, "!!VP1.0", 7) == 0) { |
| target = GL_VERTEX_PROGRAM_NV; |
| parseState.pos = programString + 7; |
| parseState.isStateProgram = GL_FALSE; |
| } |
| else if (_mesa_strncmp((const char *) programString, "!!VP1.1", 7) == 0) { |
| target = GL_VERTEX_PROGRAM_NV; |
| parseState.pos = programString + 7; |
| parseState.isStateProgram = GL_FALSE; |
| parseState.isVersion1_1 = GL_TRUE; |
| } |
| else if (_mesa_strncmp((const char *) programString, "!!VSP1.0", 8) == 0) { |
| target = GL_VERTEX_STATE_PROGRAM_NV; |
| parseState.pos = programString + 8; |
| parseState.isStateProgram = GL_TRUE; |
| } |
| else { |
| /* invalid header */ |
| ctx->Program.ErrorPos = 0; |
| _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)"); |
| return; |
| } |
| |
| |
| if (Parse_Program(&parseState, instBuffer)) { |
| /* successful parse! */ |
| |
| if (parseState.isStateProgram) { |
| if (!parseState.anyProgRegsWritten) { |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glLoadProgramNV(c[#] not written)"); |
| return; |
| } |
| } |
| else { |
| if (!parseState.isPositionInvariant && |
| !(parseState.outputsWritten & (1 << VERT_RESULT_HPOS))) { |
| /* bit 1 = HPOS register */ |
| _mesa_error(ctx, GL_INVALID_OPERATION, |
| "glLoadProgramNV(HPOS not written)"); |
| return; |
| } |
| } |
| |
| /* copy the compiled instructions */ |
| assert(parseState.numInst <= MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS); |
| newInst = _mesa_alloc_instructions(parseState.numInst); |
| if (!newInst) { |
| _mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV"); |
| _mesa_free(programString); |
| return; /* out of memory */ |
| } |
| _mesa_copy_instructions(newInst, instBuffer, parseState.numInst); |
| |
| /* install the program */ |
| program->Base.Target = target; |
| if (program->Base.String) { |
| _mesa_free(program->Base.String); |
| } |
| program->Base.String = programString; |
| program->Base.Format = GL_PROGRAM_FORMAT_ASCII_ARB; |
| if (program->Base.Instructions) { |
| _mesa_free(program->Base.Instructions); |
| } |
| program->Base.Instructions = newInst; |
| program->Base.InputsRead = parseState.inputsRead; |
| if (parseState.isPositionInvariant) |
| program->Base.InputsRead |= VERT_BIT_POS; |
| program->Base.NumInstructions = parseState.numInst; |
| program->Base.OutputsWritten = parseState.outputsWritten; |
| program->IsPositionInvariant = parseState.isPositionInvariant; |
| program->IsNVProgram = GL_TRUE; |
| |
| #ifdef DEBUG_foo |
| _mesa_printf("--- glLoadProgramNV result ---\n"); |
| _mesa_print_nv_vertex_program(program); |
| _mesa_printf("------------------------------\n"); |
| #endif |
| } |
| else { |
| /* Error! */ |
| _mesa_error(ctx, GL_INVALID_OPERATION, "glLoadProgramNV"); |
| /* NOTE: _mesa_set_program_error would have been called already */ |
| /* GL_NV_vertex_program isn't supposed to set the error string |
| * so we reset it here. |
| */ |
| _mesa_set_program_error(ctx, ctx->Program.ErrorPos, NULL); |
| } |
| } |
| |
| |
| static void |
| PrintSrcReg(const struct prog_src_register *src) |
| { |
| static const char comps[5] = "xyzw"; |
| if (src->NegateBase) |
| _mesa_printf("-"); |
| if (src->RelAddr) { |
| if (src->Index > 0) |
| _mesa_printf("c[A0.x + %d]", src->Index); |
| else if (src->Index < 0) |
| _mesa_printf("c[A0.x - %d]", -src->Index); |
| else |
| _mesa_printf("c[A0.x]"); |
| } |
| else if (src->File == PROGRAM_OUTPUT) { |
| _mesa_printf("o[%s]", OutputRegisters[src->Index]); |
| } |
| else if (src->File == PROGRAM_INPUT) { |
| _mesa_printf("v[%s]", InputRegisters[src->Index]); |
| } |
| else if (src->File == PROGRAM_ENV_PARAM) { |
| _mesa_printf("c[%d]", src->Index); |
| } |
| else { |
| ASSERT(src->File == PROGRAM_TEMPORARY); |
| _mesa_printf("R%d", src->Index); |
| } |
| |
| if (GET_SWZ(src->Swizzle, 0) == GET_SWZ(src->Swizzle, 1) && |
| GET_SWZ(src->Swizzle, 0) == GET_SWZ(src->Swizzle, 2) && |
| GET_SWZ(src->Swizzle, 0) == GET_SWZ(src->Swizzle, 3)) { |
| _mesa_printf(".%c", comps[GET_SWZ(src->Swizzle, 0)]); |
| } |
| else if (src->Swizzle != SWIZZLE_NOOP) { |
| _mesa_printf(".%c%c%c%c", |
| comps[GET_SWZ(src->Swizzle, 0)], |
| comps[GET_SWZ(src->Swizzle, 1)], |
| comps[GET_SWZ(src->Swizzle, 2)], |
| comps[GET_SWZ(src->Swizzle, 3)]); |
| } |
| } |
| |
| |
| static void |
| PrintDstReg(const struct prog_dst_register *dst) |
| { |
| if (dst->File == PROGRAM_OUTPUT) { |
| _mesa_printf("o[%s]", OutputRegisters[dst->Index]); |
| } |
| else if (dst->File == PROGRAM_INPUT) { |
| _mesa_printf("v[%s]", InputRegisters[dst->Index]); |
| } |
| else if (dst->File == PROGRAM_ENV_PARAM) { |
| _mesa_printf("c[%d]", dst->Index); |
| } |
| else { |
| ASSERT(dst->File == PROGRAM_TEMPORARY); |
| _mesa_printf("R%d", dst->Index); |
| } |
| |
| if (dst->WriteMask != 0 && dst->WriteMask != WRITEMASK_XYZW) { |
| _mesa_printf("."); |
| if (dst->WriteMask & WRITEMASK_X) |
| _mesa_printf("x"); |
| if (dst->WriteMask & WRITEMASK_Y) |
| _mesa_printf("y"); |
| if (dst->WriteMask & WRITEMASK_Z) |
| _mesa_printf("z"); |
| if (dst->WriteMask & WRITEMASK_W) |
| _mesa_printf("w"); |
| } |
| } |
| |
| |
| /** |
| * Print a single NVIDIA vertex program instruction. |
| */ |
| void |
| _mesa_print_nv_vertex_instruction(const struct prog_instruction *inst) |
| { |
| GLuint i, n; |
| |
| switch (inst->Opcode) { |
| case OPCODE_MOV: |
| case OPCODE_LIT: |
| case OPCODE_RCP: |
| case OPCODE_RSQ: |
| case OPCODE_EXP: |
| case OPCODE_LOG: |
| case OPCODE_RCC: |
| case OPCODE_ABS: |
| case OPCODE_MUL: |
| case OPCODE_ADD: |
| case OPCODE_DP3: |
| case OPCODE_DP4: |
| case OPCODE_DST: |
| case OPCODE_MIN: |
| case OPCODE_MAX: |
| case OPCODE_SLT: |
| case OPCODE_SGE: |
| case OPCODE_DPH: |
| case OPCODE_SUB: |
| case OPCODE_MAD: |
| _mesa_printf("%s ", _mesa_opcode_string(inst->Opcode)); |
| PrintDstReg(&inst->DstReg); |
| _mesa_printf(", "); |
| n = _mesa_num_inst_src_regs(inst->Opcode); |
| for (i = 0; i < n; i++) { |
| PrintSrcReg(&inst->SrcReg[i]); |
| if (i + 1 < n) |
| _mesa_printf(", "); |
| } |
| _mesa_printf(";\n"); |
| break; |
| case OPCODE_ARL: |
| _mesa_printf("ARL A0.x, "); |
| PrintSrcReg(&inst->SrcReg[0]); |
| _mesa_printf(";\n"); |
| break; |
| case OPCODE_PRINT: |
| _mesa_printf("PRINT '%s'", inst->Data); |
| if (inst->SrcReg[0].File != PROGRAM_UNDEFINED) { |
| _mesa_printf(", "); |
| PrintSrcReg(&inst->SrcReg[0]); |
| _mesa_printf(";\n"); |
| } |
| else { |
| _mesa_printf("\n"); |
| } |
| break; |
| case OPCODE_END: |
| _mesa_printf("END\n"); |
| break; |
| default: |
| _mesa_printf("BAD INSTRUCTION\n"); |
| } |
| } |
| |
| |
| /** |
| * Print (unparse) the given vertex program. Just for debugging. |
| */ |
| void |
| _mesa_print_nv_vertex_program(const struct gl_vertex_program *program) |
| { |
| const struct prog_instruction *inst; |
| |
| for (inst = program->Base.Instructions; ; inst++) { |
| _mesa_print_nv_vertex_instruction(inst); |
| if (inst->Opcode == OPCODE_END) |
| return; |
| } |
| } |
| |
| |
| const char * |
| _mesa_nv_vertex_input_register_name(GLuint i) |
| { |
| ASSERT(i < MAX_NV_VERTEX_PROGRAM_INPUTS); |
| return InputRegisters[i]; |
| } |
| |
| |
| const char * |
| _mesa_nv_vertex_output_register_name(GLuint i) |
| { |
| ASSERT(i < MAX_NV_VERTEX_PROGRAM_OUTPUTS); |
| return OutputRegisters[i]; |
| } |
| |
