1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
|
/* Test GL_NV_fragment_program */
#include <assert.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#define GL_GLEXT_PROTOTYPES
#include <GL/glut.h>
static void Display( void )
{
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glPushMatrix();
glColor4f(0, 0.5, 0, 1);
glBegin(GL_POLYGON);
glVertex2f(-1, -1);
glVertex2f( 1, -1);
glVertex2f( 0, 1);
glEnd();
glPopMatrix();
glutSwapBuffers();
}
static void Reshape( int width, int height )
{
glViewport( 0, 0, width, height );
glMatrixMode( GL_PROJECTION );
glLoadIdentity();
glFrustum( -1.0, 1.0, -1.0, 1.0, 5.0, 25.0 );
glMatrixMode( GL_MODELVIEW );
glLoadIdentity();
glTranslatef( 0.0, 0.0, -15.0 );
}
static void Key( unsigned char key, int x, int y )
{
(void) x;
(void) y;
switch (key) {
case 27:
exit(0);
break;
}
glutPostRedisplay();
}
static void Init( void )
{
static const char *prog0 =
"!!FP1.0\n"
"MUL o[COLR], R0, f[WPOS]; \n"
"ADD o[COLH], H3, f[TEX0]; \n"
"ADD_SAT o[COLH], H3, f[TEX0]; \n"
"ADDX o[COLH], H3, f[TEX0]; \n"
"ADDHC o[COLH], H3, f[TEX0]; \n"
"ADDXC o[COLH], H3, f[TEX0]; \n"
"ADDXC_SAT o[COLH], H30, f[TEX0]; \n"
"MUL o[COLR].xy, R0.wzyx, f[WPOS]; \n"
"MUL o[COLR], H0, f[WPOS]; \n"
"MUL o[COLR], -H0, f[WPOS]; \n"
"MOV RC, H1; \n"
"MOV HC, H2; \n"
;
/* masked updates, defines, declarations */
static const char *prog1 =
"!!FP1.0\n"
"DEFINE foo = {1, 2, 3, 4}; \n"
"DEFINE foo2 = 5; \n"
"DECLARE foo = {5, 6, 7, 8}; \n"
"DECLARE bar = 3; \n"
"DECLARE bar2; \n"
"DECLARE bar3 = bar; \n"
"#DECLARE bar4 = { a, b, c, d }; \n"
"MOV o[COLR], R0; \n"
"MOV o[COLR].xy, R0; \n"
"MOV o[COLR] (NE), R0; \n"
"MOV o[COLR] (NE.wzyx), R0; \n"
"MOV o[COLR].xy (NE.wzyx), R0; \n"
"MOV RC.x (EQ), R1.x; \n"
"KIL NE; \n"
"KIL EQ.xyxy; \n"
;
/* texture instructions */
static const char *prog2 =
"!!FP1.0\n"
"TEX R0, f[TEX0], TEX0, 2D; \n"
"TEX R1, f[TEX1], TEX1, CUBE; \n"
"TEX R2, f[TEX2], TEX2, 3D; \n"
"TXP R3, f[TEX3], TEX3, RECT; \n"
"TXD R3, R2, R1, f[TEX3], TEX3, RECT; \n"
"MUL o[COLR], R0, f[COL0]; \n"
;
/* test negation, absolute value */
static const char *prog3 =
"!!FP1.0\n"
"MOV R0, -R1; \n"
"MOV R0, +R1; \n"
"MOV R0, |-R1|; \n"
"MOV R0, |+R1|; \n"
"MOV R0, -|R1|; \n"
"MOV R0, +|R1|; \n"
"MOV R0, -|-R1|; \n"
"MOV R0, -|+R1|; \n"
"MOV o[COLR], R0; \n"
;
/* double the color */
static const char *prog10 =
"!!FP1.0\n"
"MOV R0, f[COL0]; \n"
"ADD o[COLR], R0, f[COL0]; \n"
;
GLuint progs[20];
glGenProgramsNV(20, progs);
assert(progs[0]);
assert(progs[1]);
assert(progs[0] != progs[1]);
glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[0],
strlen(prog0),
(const GLubyte *) prog0);
assert(glIsProgramNV(progs[0]));
glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[1],
strlen(prog1),
(const GLubyte *) prog1);
assert(glIsProgramNV(progs[1]));
glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[2],
strlen(prog2),
(const GLubyte *) prog2);
assert(glIsProgramNV(progs[2]));
glBindProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[2]);
glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[3],
strlen(prog3),
(const GLubyte *) prog3);
assert(glIsProgramNV(progs[3]));
glBindProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[3]);
/* a real program */
glLoadProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[10],
strlen(prog10),
(const GLubyte *) prog10);
assert(glIsProgramNV(progs[10]));
glBindProgramNV(GL_FRAGMENT_PROGRAM_NV, progs[10]);
glEnable(GL_FRAGMENT_PROGRAM_NV);
glEnable(GL_ALPHA_TEST);
glAlphaFunc(GL_ALWAYS, 0.0);
printf("glGetError = %d\n", (int) glGetError());
}
int main( int argc, char *argv[] )
{
glutInit( &argc, argv );
glutInitWindowPosition( 0, 0 );
glutInitWindowSize( 250, 250 );
glutInitDisplayMode( GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH );
glutCreateWindow(argv[0]);
glutReshapeFunc( Reshape );
glutKeyboardFunc( Key );
glutDisplayFunc( Display );
Init();
glutMainLoop();
return 0;
}
|
