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Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/shader/nvvertparse.c')
| -rw-r--r-- | nx-X11/extras/Mesa/src/mesa/shader/nvvertparse.c | 1603 |
1 files changed, 0 insertions, 1603 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/shader/nvvertparse.c b/nx-X11/extras/Mesa/src/mesa/shader/nvvertparse.c deleted file mode 100644 index 33bc2004a..000000000 --- a/nx-X11/extras/Mesa/src/mesa/shader/nvvertparse.c +++ /dev/null @@ -1,1603 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 6.3 - * - * Copyright (C) 1999-2004 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 "hash.h" -#include "imports.h" -#include "macros.h" -#include "mtypes.h" -#include "nvprogram.h" -#include "nvvertparse.h" -#include "nvvertprog.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; - GLuint inputsRead; - GLuint 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", "BFC0", "BFC1", "FOGC", "PSIZ", - "TEX0", "TEX1", "TEX2", "TEX3", "TEX4", "TEX5", "TEX6", "TEX7", NULL -}; - -/* NOTE: the order here must match opcodes in nvvertprog.h */ -static const char *Opcodes[] = { - "MOV", "LIT", "RCP", "RSQ", "EXP", "LOG", "MUL", "ADD", "DP3", "DP4", - "DST", "MIN", "MAX", "SLT", "SGE", "MAD", "ARL", "DPH", "RCC", "SUB", - "ABS", "END", - /* GL_ARB_vertex_program */ - "FLR", "FRC", "EX2", "LG2", "POW", "XPD", "SWZ", - /* Mesa-specific */ - "PRINT", - 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 vp_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 vp_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 vp_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->Negate = GL_TRUE; - if (!Peek_Token(parseState, token)) - RETURN_ERROR; - } - else { - srcReg->Negate = GL_FALSE; - } - - /* 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 = MAKE_SWIZZLE4(0, 0, 0, 0); - else if (token[0] == 'y') - srcReg->Swizzle = MAKE_SWIZZLE4(1, 1, 1, 1); - else if (token[0] == 'z') - srcReg->Swizzle = MAKE_SWIZZLE4(2, 2, 2, 2); - else if (token[0] == 'w') - srcReg->Swizzle = MAKE_SWIZZLE4(3, 3, 3, 3); - else - RETURN_ERROR1("Expected x, y, z, or w"); - } - else { - /* 2, 3 or 4-component swizzle */ - GLint k; - 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 vp_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->Negate = GL_TRUE; - (void) Parse_String(parseState, "-"); /* consume '-' */ - if (!Peek_Token(parseState, token)) - RETURN_ERROR; - } - else { - srcReg->Negate = GL_FALSE; - } - - /* 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 vp_instruction *inst, enum vp_opcode opcode) -{ - if (opcode == VP_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 vp_instruction *inst, enum vp_opcode opcode) -{ - if (opcode == VP_OPCODE_DPH && !parseState->isVersion1_1) - RETURN_ERROR1("DPH illegal for vertex program 1.0"); - if (opcode == VP_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 vp_instruction *inst, enum vp_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 vp_instruction *inst, enum vp_opcode opcode) -{ - if (opcode == VP_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 vp_instruction *inst) -{ - inst->Opcode = VP_OPCODE_ARL; - inst->StringPos = parseState->curLine - parseState->start; - - /* 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 vp_instruction *inst) -{ - GLubyte token[100]; - - inst->Opcode = VP_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 vp_instruction *inst) -{ - const GLubyte *str; - GLubyte *msg; - GLuint len; - GLubyte token[100]; - struct vp_src_register *srcReg = &inst->SrcReg[0]; - GLint idx; - - inst->Opcode = VP_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 = _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->Negate = GL_FALSE; - 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 vp_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 vp_instruction program[]) -{ - while (1) { - struct vp_instruction *inst = program + parseState->numInst; - - /* Initialize the instruction */ - inst->SrcReg[0].File = PROGRAM_UNDEFINED; - inst->SrcReg[1].File = PROGRAM_UNDEFINED; - inst->SrcReg[2].File = PROGRAM_UNDEFINED; - inst->DstReg.File = PROGRAM_UNDEFINED; - inst->Data = NULL; - - if (Parse_String(parseState, "MOV")) { - if (!Parse_UnaryOpInstruction(parseState, inst, VP_OPCODE_MOV)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "LIT")) { - if (!Parse_UnaryOpInstruction(parseState, inst, VP_OPCODE_LIT)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "ABS")) { - if (!Parse_UnaryOpInstruction(parseState, inst, VP_OPCODE_ABS)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "MUL")) { - if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_MUL)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "ADD")) { - if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_ADD)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "DP3")) { - if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_DP3)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "DP4")) { - if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_DP4)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "DST")) { - if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_DST)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "MIN")) { - if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_MIN)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "MAX")) { - if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_MAX)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "SLT")) { - if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_SLT)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "SGE")) { - if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_SGE)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "DPH")) { - if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_DPH)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "SUB")) { - if (!Parse_BiOpInstruction(parseState, inst, VP_OPCODE_SUB)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "MAD")) { - if (!Parse_TriOpInstruction(parseState, inst, VP_OPCODE_MAD)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "RCP")) { - if (!Parse_ScalarInstruction(parseState, inst, VP_OPCODE_RCP)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "RSQ")) { - if (!Parse_ScalarInstruction(parseState, inst, VP_OPCODE_RSQ)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "EXP")) { - if (!Parse_ScalarInstruction(parseState, inst, VP_OPCODE_EXP)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "LOG")) { - if (!Parse_ScalarInstruction(parseState, inst, VP_OPCODE_LOG)) - RETURN_ERROR; - } - else if (Parse_String(parseState, "RCC")) { - if (!Parse_ScalarInstruction(parseState, inst, VP_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 vp_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 vertex_program *program) -{ - struct parse_state parseState; - struct vp_instruction instBuffer[MAX_NV_VERTEX_PROGRAM_INSTRUCTIONS]; - struct vp_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)) { - /* 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 = (struct vp_instruction *) - MALLOC(parseState.numInst * sizeof(struct vp_instruction)); - if (!newInst) { - _mesa_error(ctx, GL_OUT_OF_MEMORY, "glLoadProgramNV"); - FREE(programString); - return; /* out of memory */ - } - MEMCPY(newInst, instBuffer, - parseState.numInst * sizeof(struct vp_instruction)); - - /* install the program */ - program->Base.Target = target; - if (program->Base.String) { - FREE(program->Base.String); - } - program->Base.String = programString; - program->Base.Format = GL_PROGRAM_FORMAT_ASCII_ARB; - if (program->Instructions) { - FREE(program->Instructions); - } - program->Instructions = newInst; - program->InputsRead = parseState.inputsRead; - program->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 vp_src_register *src) -{ - static const char comps[5] = "xyzw"; - if (src->Negate) - _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 vp_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 != 0xf) { - _mesa_printf("."); - if (dst->WriteMask & 0x1) - _mesa_printf("x"); - if (dst->WriteMask & 0x2) - _mesa_printf("y"); - if (dst->WriteMask & 0x4) - _mesa_printf("z"); - if (dst->WriteMask & 0x8) - _mesa_printf("w"); - } -} - - -/** - * Print a single NVIDIA vertex program instruction. - */ -void -_mesa_print_nv_vertex_instruction(const struct vp_instruction *inst) -{ - switch (inst->Opcode) { - case VP_OPCODE_MOV: - case VP_OPCODE_LIT: - case VP_OPCODE_RCP: - case VP_OPCODE_RSQ: - case VP_OPCODE_EXP: - case VP_OPCODE_LOG: - case VP_OPCODE_RCC: - case VP_OPCODE_ABS: - _mesa_printf("%s ", Opcodes[(int) inst->Opcode]); - PrintDstReg(&inst->DstReg); - _mesa_printf(", "); - PrintSrcReg(&inst->SrcReg[0]); - _mesa_printf(";\n"); - break; - case VP_OPCODE_MUL: - case VP_OPCODE_ADD: - case VP_OPCODE_DP3: - case VP_OPCODE_DP4: - case VP_OPCODE_DST: - case VP_OPCODE_MIN: - case VP_OPCODE_MAX: - case VP_OPCODE_SLT: - case VP_OPCODE_SGE: - case VP_OPCODE_DPH: - case VP_OPCODE_SUB: - _mesa_printf("%s ", Opcodes[(int) inst->Opcode]); - PrintDstReg(&inst->DstReg); - _mesa_printf(", "); - PrintSrcReg(&inst->SrcReg[0]); - _mesa_printf(", "); - PrintSrcReg(&inst->SrcReg[1]); - _mesa_printf(";\n"); - break; - case VP_OPCODE_MAD: - _mesa_printf("MAD "); - PrintDstReg(&inst->DstReg); - _mesa_printf(", "); - PrintSrcReg(&inst->SrcReg[0]); - _mesa_printf(", "); - PrintSrcReg(&inst->SrcReg[1]); - _mesa_printf(", "); - PrintSrcReg(&inst->SrcReg[2]); - _mesa_printf(";\n"); - break; - case VP_OPCODE_ARL: - _mesa_printf("ARL A0.x, "); - PrintSrcReg(&inst->SrcReg[0]); - _mesa_printf(";\n"); - break; - case VP_OPCODE_PRINT: - _mesa_printf("PRINT '%s'", inst->Data); - if (inst->SrcReg[0].File) { - _mesa_printf(", "); - PrintSrcReg(&inst->SrcReg[0]); - _mesa_printf(";\n"); - } - else { - _mesa_printf("\n"); - } - break; - case VP_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 vertex_program *program) -{ - const struct vp_instruction *inst; - - for (inst = program->Instructions; ; inst++) { - _mesa_print_nv_vertex_instruction(inst); - if (inst->Opcode == VP_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]; -} |