| 1 | /* Copyright (c) 2001, Stanford University
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| 2 | * All rights reserved
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| 3 | *
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| 4 | * See the file LICENSE.txt for information on redistributing this software.
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| 5 | */
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| 6 |
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| 7 | #include "packer.h"
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| 8 | #include "cr_opcodes.h"
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| 9 | #include "cr_error.h"
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| 10 |
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| 11 |
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| 12 | /* Note -- for these packets, the ustride and vstride are implicit,
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| 13 | * and are computed into the packet instead of copied.
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| 14 | */
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| 15 |
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| 16 | static int __gl_Map2NumComponents( GLenum target )
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| 17 | {
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| 18 | switch( target )
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| 19 | {
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| 20 | case GL_MAP2_VERTEX_3:
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| 21 | case GL_MAP2_NORMAL:
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| 22 | case GL_MAP2_TEXTURE_COORD_3:
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| 23 | return 3;
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| 24 | case GL_MAP2_VERTEX_4:
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| 25 | case GL_MAP2_COLOR_4:
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| 26 | case GL_MAP2_TEXTURE_COORD_4:
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| 27 | return 4;
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| 28 | case GL_MAP2_INDEX:
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| 29 | case GL_MAP2_TEXTURE_COORD_1:
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| 30 | return 1;
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| 31 | case GL_MAP2_TEXTURE_COORD_2:
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| 32 | return 2;
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| 33 | default:
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| 34 | return -1;
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| 35 | }
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| 36 | }
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| 37 |
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| 38 | static int __gl_Map1NumComponents( GLenum target )
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| 39 | {
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| 40 | switch( target )
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| 41 | {
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| 42 | case GL_MAP1_VERTEX_3:
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| 43 | case GL_MAP1_NORMAL:
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| 44 | case GL_MAP1_TEXTURE_COORD_3:
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| 45 | return 3;
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| 46 | case GL_MAP1_VERTEX_4:
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| 47 | case GL_MAP1_COLOR_4:
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| 48 | case GL_MAP1_TEXTURE_COORD_4:
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| 49 | return 4;
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| 50 | case GL_MAP1_INDEX:
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| 51 | case GL_MAP1_TEXTURE_COORD_1:
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| 52 | return 1;
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| 53 | case GL_MAP1_TEXTURE_COORD_2:
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| 54 | return 2;
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| 55 | default:
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| 56 | return -1;
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| 57 | }
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| 58 | }
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| 59 |
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| 60 | void PACK_APIENTRY crPackMap2dSWAP(GLenum target, GLdouble u1,
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| 61 | GLdouble u2, GLint ustride, GLint uorder, GLdouble v1, GLdouble v2,
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| 62 | GLint vstride, GLint vorder, const GLdouble *points)
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| 63 | {
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| 64 | unsigned char *data_ptr;
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| 65 | int u,v;
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| 66 | int comp;
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| 67 | GLdouble *dest_data, *src_data;
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| 68 | int packet_length =
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| 69 | sizeof( target ) +
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| 70 | sizeof( u1 ) +
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| 71 | sizeof( u2 ) +
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| 72 | sizeof( uorder ) +
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| 73 | sizeof( ustride ) +
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| 74 | sizeof( v1 ) +
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| 75 | sizeof( v2 ) +
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| 76 | sizeof( vorder ) +
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| 77 | sizeof( vstride );
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| 78 |
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| 79 | int num_components = __gl_Map2NumComponents( target );
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| 80 | if (num_components < 0)
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| 81 | {
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| 82 | __PackError( __LINE__, __FILE__, GL_INVALID_ENUM,
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| 83 | "crPackMap2d(bad target)" );
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| 84 | return;
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| 85 | }
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| 86 |
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| 87 | packet_length += num_components*uorder*vorder*sizeof( *points );
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| 88 |
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| 89 | data_ptr = (unsigned char *) crPackAlloc( packet_length );
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| 90 |
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| 91 | WRITE_DATA( 0, GLenum, SWAP32(target) );
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| 92 | WRITE_SWAPPED_DOUBLE( 4, u1 );
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| 93 | WRITE_SWAPPED_DOUBLE( 12, u2 );
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| 94 | WRITE_DATA( 20, GLint, SWAP32(num_components) );
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| 95 | WRITE_DATA( 24, GLint, SWAP32(uorder) );
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| 96 | WRITE_SWAPPED_DOUBLE( 28, v1 );
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| 97 | WRITE_SWAPPED_DOUBLE( 36, v2 );
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| 98 | WRITE_DATA( 44, GLint, SWAP32(num_components*uorder) );
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| 99 | WRITE_DATA( 48, GLint, SWAP32(vorder) );
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| 100 |
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| 101 | dest_data = (GLdouble *) (data_ptr + 52);
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| 102 | src_data = (GLdouble *) points;
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| 103 | for (v = 0 ; v < vorder ; v++)
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| 104 | {
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| 105 | for (u = 0 ; u < uorder ; u++)
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| 106 | {
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| 107 | for (comp = 0 ; comp < num_components ; comp++)
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| 108 | {
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| 109 | WRITE_SWAPPED_DOUBLE( ((unsigned char *) dest_data + comp*sizeof(*points)) - data_ptr, *(src_data + comp) );
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| 110 | }
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| 111 | dest_data += num_components;
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| 112 | src_data += ustride;
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| 113 | }
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| 114 | src_data += vstride - ustride*uorder;
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| 115 | }
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| 116 |
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| 117 | crHugePacket( CR_MAP2D_OPCODE, data_ptr );
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| 118 | crPackFree( data_ptr );
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| 119 | }
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| 120 |
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| 121 | void PACK_APIENTRY crPackMap2fSWAP(GLenum target, GLfloat u1,
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| 122 | GLfloat u2, GLint ustride, GLint uorder, GLfloat v1, GLfloat v2,
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| 123 | GLint vstride, GLint vorder, const GLfloat *points)
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| 124 | {
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| 125 | unsigned char *data_ptr;
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| 126 | int u,v;
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| 127 | int comp;
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| 128 | GLfloat *dest_data, *src_data;
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| 129 | int packet_length =
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| 130 | sizeof( target ) +
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| 131 | sizeof( u1 ) +
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| 132 | sizeof( u2 ) +
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| 133 | sizeof( uorder ) +
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| 134 | sizeof( ustride ) +
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| 135 | sizeof( v1 ) +
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| 136 | sizeof( v2 ) +
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| 137 | sizeof( vorder ) +
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| 138 | sizeof( vstride );
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| 139 |
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| 140 | int num_components = __gl_Map2NumComponents( target );
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| 141 | if (num_components < 0)
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| 142 | {
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| 143 | __PackError( __LINE__, __FILE__, GL_INVALID_ENUM,
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| 144 | "crPackMap2f(bad target)" );
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| 145 | return;
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| 146 | }
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| 147 |
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| 148 | packet_length += num_components*uorder*vorder*sizeof( *points );
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| 149 |
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| 150 | data_ptr = (unsigned char *) crPackAlloc( packet_length );
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| 151 |
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| 152 | WRITE_DATA( 0, GLenum, SWAP32(target) );
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| 153 | WRITE_DATA( 4, GLuint, SWAPFLOAT(u1) );
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| 154 | WRITE_DATA( 8, GLuint, SWAPFLOAT(u2) );
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| 155 | WRITE_DATA( 12, GLint, SWAP32(num_components) );
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| 156 | WRITE_DATA( 16, GLint, SWAP32(uorder) );
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| 157 | WRITE_DATA( 20, GLuint, SWAPFLOAT(v1) );
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| 158 | WRITE_DATA( 24, GLuint, SWAPFLOAT(v2) );
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| 159 | WRITE_DATA( 28, GLint, SWAP32(num_components*uorder) );
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| 160 | WRITE_DATA( 32, GLint, SWAP32(vorder) );
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| 161 |
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| 162 | dest_data = (GLfloat *) (data_ptr + 36);
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| 163 | src_data = (GLfloat *) points;
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| 164 | for (v = 0 ; v < vorder ; v++)
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| 165 | {
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| 166 | for (u = 0 ; u < uorder ; u++)
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| 167 | {
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| 168 | for (comp = 0 ; comp < num_components ; comp++)
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| 169 | {
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| 170 | WRITE_DATA( (unsigned char *) dest_data + comp*sizeof(*points) - data_ptr, GLuint, SWAPFLOAT( *(src_data + comp) ) );
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| 171 | }
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| 172 | dest_data += num_components;
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| 173 | src_data += ustride;
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| 174 | }
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| 175 | src_data += vstride - ustride*uorder;
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| 176 | }
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| 177 |
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| 178 | crHugePacket( CR_MAP2F_OPCODE, data_ptr );
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| 179 | crPackFree( data_ptr );
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| 180 | }
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| 181 |
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| 182 | void PACK_APIENTRY crPackMap1dSWAP( GLenum target, GLdouble u1,
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| 183 | GLdouble u2, GLint stride, GLint order, const GLdouble *points )
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| 184 | {
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| 185 | unsigned char *data_ptr;
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| 186 | int packet_length =
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| 187 | sizeof( target ) +
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| 188 | sizeof( u1 ) +
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| 189 | sizeof( u2 ) +
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| 190 | sizeof( stride ) +
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| 191 | sizeof( order );
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| 192 |
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| 193 | int num_components = __gl_Map1NumComponents( target );
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| 194 | GLdouble *src_data, *dest_data;
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| 195 | int u;
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| 196 | int comp;
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| 197 |
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| 198 | if (num_components < 0)
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| 199 | {
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| 200 | __PackError( __LINE__, __FILE__, GL_INVALID_ENUM,
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| 201 | "crPackMap1d(bad target)" );
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| 202 | return;
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| 203 | }
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| 204 |
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| 205 | packet_length += num_components * order * sizeof( *points );
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| 206 |
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| 207 | data_ptr = (unsigned char *) crPackAlloc( packet_length );
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| 208 |
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| 209 | WRITE_DATA( 0, GLenum, SWAP32(target) );
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| 210 | WRITE_SWAPPED_DOUBLE( 4, u1 );
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| 211 | WRITE_SWAPPED_DOUBLE( 12, u2 );
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| 212 | WRITE_DATA( 20, GLint, SWAP32(num_components) );
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| 213 | WRITE_DATA( 24, GLint, SWAP32(order) );
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| 214 |
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| 215 | dest_data = (GLdouble *) (data_ptr + 28);
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| 216 | src_data = (GLdouble *) points;
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| 217 | for (u = 0 ; u < order ; u++)
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| 218 | {
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| 219 | for (comp = 0 ; comp < num_components ; comp++)
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| 220 | {
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| 221 | WRITE_SWAPPED_DOUBLE( (unsigned char *) dest_data + comp*sizeof(*points) - data_ptr, *(src_data + comp) );
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| 222 | }
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| 223 | dest_data += num_components;
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| 224 | src_data += stride;
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| 225 | }
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| 226 |
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| 227 | crHugePacket( CR_MAP1D_OPCODE, data_ptr );
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| 228 | crPackFree( data_ptr );
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| 229 | }
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| 230 |
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| 231 | void PACK_APIENTRY crPackMap1fSWAP( GLenum target, GLfloat u1,
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| 232 | GLfloat u2, GLint stride, GLint order, const GLfloat *points )
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| 233 | {
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| 234 | unsigned char *data_ptr;
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| 235 | int packet_length =
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| 236 | sizeof( target ) +
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| 237 | sizeof( u1 ) +
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| 238 | sizeof( u2 ) +
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| 239 | sizeof( stride ) +
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| 240 | sizeof( order );
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| 241 |
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| 242 | int num_components = __gl_Map1NumComponents( target );
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| 243 | GLfloat *src_data, *dest_data;
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| 244 | int u;
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| 245 | int comp;
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| 246 |
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| 247 | if (num_components < 0)
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| 248 | {
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| 249 | __PackError( __LINE__, __FILE__, GL_INVALID_ENUM,
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| 250 | "crPackMap1f(bad target)" );
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| 251 | return;
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| 252 | }
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| 253 |
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| 254 | packet_length += num_components * order * sizeof( *points );
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| 255 |
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| 256 | data_ptr = (unsigned char *) crPackAlloc( packet_length );
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| 257 |
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| 258 | WRITE_DATA( 0, GLenum, SWAP32(target) );
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| 259 | WRITE_DATA( 4, GLuint, SWAPFLOAT(u1) );
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| 260 | WRITE_DATA( 8, GLuint, SWAPFLOAT(u2) );
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| 261 | WRITE_DATA( 12, GLint, SWAP32(num_components) );
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| 262 | WRITE_DATA( 16, GLint, SWAP32(order) );
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| 263 |
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| 264 | dest_data = (GLfloat *) (data_ptr + 20);
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| 265 | src_data = (GLfloat *) points;
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| 266 | for (u = 0 ; u < order ; u++)
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| 267 | {
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| 268 | for (comp = 0 ; comp < num_components ; comp++)
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| 269 | {
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| 270 | WRITE_DATA( (unsigned char *) dest_data + comp*sizeof(*points) - data_ptr, GLuint, SWAPFLOAT( *(src_data + comp) ) );
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| 271 | }
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| 272 | dest_data += num_components;
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| 273 | src_data += stride;
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| 274 | }
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| 275 |
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| 276 | crHugePacket( CR_MAP1F_OPCODE, data_ptr );
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| 277 | crPackFree( data_ptr );
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| 278 | }
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