[692] | 1 | #include "vs1.0_inst_list.h"
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| 2 | #include <stdlib.h>
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| 3 | #include <stdio.h>
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| 4 | #include <ctype.h>
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| 5 | #include <string>
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| 6 | #include "nvparse_errors.h"
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| 7 | #include "nvparse_externs.h"
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| 8 | #include <string.h>
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| 9 | #include <GL/glu.h>
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| 10 | #include <OgreGLPrerequisites.h>
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| 11 |
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| 12 | using namespace std;
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| 13 |
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| 14 | extern string vs10_transstring;
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| 15 |
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| 16 | #define MAX_NUM_INSTRUCTIONS 128
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| 17 | #define INSTRUCTION_LIST_INC 128
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| 18 |
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| 19 | VS10InstList::VS10InstList()
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| 20 | {
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| 21 | size = 0;
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| 22 | max = INSTRUCTION_LIST_INC;
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| 23 | list = new VS10Inst[max];
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| 24 | }
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| 25 |
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| 26 | VS10InstList::~VS10InstList()
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| 27 | {
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| 28 | delete [] list;
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| 29 | }
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| 30 |
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| 31 | int VS10InstList::Size()
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| 32 | {
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| 33 | return size;
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| 34 | }
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| 35 |
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| 36 | VS10InstList& VS10InstList::operator+=(VS10InstPtr t)
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| 37 | {
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| 38 | if (size == max) {
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| 39 | // Extend list size by increment amount.
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| 40 | VS10InstPtr newlist;
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| 41 | max += INSTRUCTION_LIST_INC;
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| 42 | newlist = new VS10Inst[max];
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| 43 | for ( int i = 0; i < size; i++ )
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| 44 | newlist[i] = list[i];
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| 45 | delete [] list;
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| 46 | list = newlist;
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| 47 | }
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| 48 | list[size++] = *t;
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| 49 | return *this;
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| 50 | }
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| 51 |
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| 52 | void VS10InstList::Translate()
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| 53 | {
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| 54 | int ntranslated = 0;
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| 55 |
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| 56 | vs10_transstring.append( "!!VP1.0\n" );
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| 57 | for (int i = 0; i < size; i++)
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| 58 | {
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| 59 | ntranslated += list[i].Translate();
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| 60 | }
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| 61 | vs10_transstring.append( "END\n" );
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| 62 |
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| 63 | if ( ntranslated > 128 )
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| 64 | {
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| 65 | char str[256];
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| 66 | sprintf( str, "Vertex Shader had more than 128 instructions. (Converted to: %d)\n", ntranslated );
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| 67 | errors.set( str );
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| 68 | }
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| 69 | //fprintf( stderr, "Converted vertex shader to vertex program with %d instructions.\n\n", ntranslated );
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| 70 | }
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| 71 |
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| 72 | void VS10InstList::Validate()
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| 73 | {
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| 74 | int vsflag = 0;
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| 75 | for ( int i = 0; i < size; i++ )
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| 76 | {
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| 77 | list[i].Validate( vsflag );
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| 78 | }
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| 79 | }
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| 80 |
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| 81 |
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| 82 |
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| 83 | namespace
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| 84 | {
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| 85 | void LoadProgram( GLenum target, GLuint id, char *instring );
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| 86 | void StrToUpper(char * string);
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| 87 | int vpid;
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| 88 | }
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| 89 |
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| 90 |
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| 91 |
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| 92 | bool is_vs10(const char *s)
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| 93 | {
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| 94 | int len;
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| 95 | char *temp;
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| 96 | bool vshader_flag;
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| 97 |
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| 98 | temp = NULL;
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| 99 | len = strlen(s);
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| 100 | if ( len > 0 )
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| 101 | temp = new char [len+1];
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| 102 | for ( int k = 0; k < len; k++ )
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| 103 | {
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| 104 | temp[k] = (char) tolower( (char) s[k] );
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| 105 | }
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| 106 | if ( len == 0 )
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| 107 | vshader_flag = false;
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| 108 | else
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| 109 | {
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| 110 | vshader_flag = ( NULL != strstr(temp, "vs.1.0") ) ||
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| 111 | ( NULL != strstr(temp, "vs.1.1") );
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| 112 | delete [] temp;
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| 113 | }
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| 114 | return vshader_flag;
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| 115 | }
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| 116 |
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| 117 | bool vs10_init_more()
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| 118 | {
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| 119 | static bool vpinit = false;
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| 120 | if (vpinit == false )
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| 121 | {
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| 122 | /*
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| 123 | if(! glh_init_extensions("GL_NV_vertex_program"))
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| 124 | {
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| 125 | errors.set("unable to initialize GL_NV_vertex_program");
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| 126 | return false;
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| 127 | }
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| 128 | else
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| 129 | {
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| 130 | */
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| 131 | vpinit = true;
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| 132 | /*
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| 133 | }
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| 134 | */
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| 135 | }
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| 136 |
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| 137 | glGetIntegerv( GL_VERTEX_PROGRAM_BINDING_NV, &vpid );
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| 138 |
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| 139 | if ( vpid == 0 )
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| 140 | {
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| 141 | char str[128];
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| 142 | sprintf( str, "No vertex program id bound for nvparse() invocation. Bound id = %d\n", vpid );
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| 143 | errors.set( str );
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| 144 | return false;
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| 145 | }
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| 146 | errors.reset();
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| 147 | line_number = 1;
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| 148 | vs10_transstring = "";
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| 149 | return true;
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| 150 | }
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| 151 |
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| 152 | void vs10_load_program()
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| 153 | {
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| 154 | // Only load the program if no errors occurred.
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| 155 | if ( errors.get_num_errors() == 0 )
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| 156 | LoadProgram( GL_VERTEX_PROGRAM_NV, vpid, (char *) vs10_transstring.c_str() );
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| 157 | }
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| 158 |
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| 159 |
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| 160 | namespace
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| 161 | {
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| 162 | //.----------------------------------------------------------------------------.
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| 163 | //| Function : LoadProgram |
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| 164 | //| Description: Load a program into GL, and report any errors encountered. |
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| 165 | //.----------------------------------------------------------------------------.
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| 166 | void LoadProgram( GLenum target, GLuint id, char *instring )
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| 167 | {
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| 168 | GLint errPos;
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| 169 | GLenum errCode;
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| 170 | const GLubyte *errString;
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| 171 |
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| 172 | int len = strlen(instring);
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| 173 | glLoadProgramNV( target, id, len, (const GLubyte *) instring );
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| 174 | if ( (errCode = glGetError()) != GL_NO_ERROR )
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| 175 | {
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| 176 | errString = gluErrorString( errCode );
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| 177 |
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| 178 | glGetIntegerv( GL_PROGRAM_ERROR_POSITION_NV, &errPos );
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| 179 |
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| 180 | int nlines = 1;
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| 181 | int nchar = 1;
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| 182 | int i;
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| 183 | for ( i = 0; i < errPos; i++ )
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| 184 | {
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| 185 | if ( instring[i] == '\n' )
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| 186 | {
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| 187 | nlines++;
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| 188 | nchar = 1;
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| 189 | }
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| 190 | else
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| 191 | {
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| 192 | nchar++;
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| 193 | }
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| 194 | }
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| 195 | int start;
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| 196 | int end;
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| 197 | int flag = ((instring[errPos]==';') | (instring[errPos-1]==';')) ? 1 : 0;
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| 198 | for ( i = errPos; i >= 0; i-- )
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| 199 | {
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| 200 | start = i;
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| 201 | if ( flag && (start >= errPos-1) )
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| 202 | continue;
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| 203 | if ( instring[i] == ';' )
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| 204 | {
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| 205 | if ( !flag )
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| 206 | {
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| 207 | start = i+1;
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| 208 | if ( instring[start] == '\n' )
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| 209 | start++;
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| 210 | }
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| 211 | break;
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| 212 | }
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| 213 | }
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| 214 | for ( i = errPos; i < len; i++ )
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| 215 | {
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| 216 | end = i;
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| 217 | if ( instring[i] == ';' && end > start)
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| 218 | {
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| 219 | break;
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| 220 | }
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| 221 | }
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| 222 | if ( errPos - start > 30 )
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| 223 | {
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| 224 | start = errPos - 30;
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| 225 | }
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| 226 | if ( end - errPos > 30 )
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| 227 | {
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| 228 | end = errPos + 30;
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| 229 | }
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| 230 |
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| 231 | char substring[96];
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| 232 | memset( substring, 0, 96 );
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| 233 | strncpy( substring, &(instring[start]), end-start+1 );
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| 234 | char str[256];
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| 235 | //sprintf( str, "error at line %d character %d\n \"%s\"\n", nlines, nchar, substring );
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| 236 | sprintf( str, "error at line %d character %d\n\"%s\"\n", nlines, nchar, substring );
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| 237 | int width = errPos-start;
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| 238 | for ( i = 0; i < width; i++ )
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| 239 | {
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| 240 | strcat( str, " " );
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| 241 | }
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| 242 | strcat( str, "|\n" );
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| 243 | for ( i = 0; i < width; i++ )
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| 244 | {
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| 245 | strcat( str, " " );
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| 246 | }
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| 247 | strcat( str, "^\n" );
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| 248 |
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| 249 | errors.set( str );
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| 250 | }
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| 251 | }
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| 252 |
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| 253 |
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| 254 | //.----------------------------------------------------------------------------.
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| 255 | //| Function : StrToUpper |
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| 256 | //| Description: Converts all lowercase chars in a string to uppercase. |
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| 257 | //.----------------------------------------------------------------------------.
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| 258 | void StrToUpper(char *string)
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| 259 | {
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| 260 | for (unsigned int i = 0; i < strlen(string); i++)
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| 261 | string[i] = toupper(string[i]);
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| 262 | }
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| 263 |
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| 264 | }
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| 265 |
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| 266 | /*
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| 267 | else if ( is_vs10(instring) )
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| 268 | {
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| 269 | if (vpinit == 0 )
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| 270 | {
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| 271 | if(! glh_init_extensions("GL_NV_vertex_program"))
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| 272 | {
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| 273 | errors.set("unable to initialize GL_NV_vertex_program");
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| 274 | free(instring);
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| 275 | return;
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| 276 | }
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| 277 | else
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| 278 | {
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| 279 | vpinit = 1;
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| 280 | }
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| 281 | }
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| 282 |
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| 283 | if ( glGetError() != GL_NO_ERROR )
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| 284 | {
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| 285 | errors.set( "Previous GL_ERROR prior to vertex shader parsing.\n" );
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| 286 | }
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| 287 |
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| 288 | int vpid;
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| 289 | glGetIntegerv( GL_VERTEX_PROGRAM_BINDING_NV, &vpid );
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| 290 |
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| 291 | if ( vpid == 0 )
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| 292 | {
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| 293 | char str[128];
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| 294 | sprintf( str, "No vertex program id bound for nvparse() invocation. Bound id = %d\n", vpid );
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| 295 | errors.set( str );
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| 296 | }
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| 297 | else
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| 298 | {
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| 299 | errors.reset();
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| 300 | line_number = 1;
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| 301 | vs10_init(instring);
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| 302 | vs10_transstring = "";
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| 303 | vs10_parse();
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| 304 | //fprintf( stderr, "Converted text:\n%s\n\n\n", vs10_transstring.c_str() );
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| 305 | LoadProgram( GL_VERTEX_PROGRAM_NV, vpid, (char *) vs10_transstring.c_str() );
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| 306 | }
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| 307 |
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| 308 | }
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| 309 |
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| 310 | */
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