Merge commit 'origin/master' into gallium-0.2
[mesa.git] / progs / trivial / tri-fp-const-imm.c
1 /*
2 * Copyright (c) 1991, 1992, 1993 Silicon Graphics, Inc.
3 *
4 * Permission to use, copy, modify, distribute, and sell this software and
5 * its documentation for any purpose is hereby granted without fee, provided
6 * that (i) the above copyright notices and this permission notice appear in
7 * all copies of the software and related documentation, and (ii) the name of
8 * Silicon Graphics may not be used in any advertising or
9 * publicity relating to the software without the specific, prior written
10 * permission of Silicon Graphics.
11 *
12 * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF
13 * ANY KIND,
14 * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
15 * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
16 *
17 * IN NO EVENT SHALL SILICON GRAPHICS BE LIABLE FOR
18 * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
19 * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
20 * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
21 * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
22 * OF THIS SOFTWARE.
23 */
24
25 #include <stdio.h>
26 #include <string.h>
27 #include <stdlib.h>
28 #define GL_GLEXT_PROTOTYPES
29 #include <GL/glut.h>
30
31
32 #define CI_OFFSET_1 16
33 #define CI_OFFSET_2 32
34
35
36 GLenum doubleBuffer;
37
38 static void Init(void)
39 {
40 GLint errno;
41 GLuint prognum;
42 static const char *prog1 =
43 "!!ARBfp1.0\n"
44 "TEMP R1;\n"
45 "MOV R1, state.material.emission;\n"
46 "MUL R1, R1, {0.9}.x;\n"
47 "MOV result.color, R1;\n"
48 "END\n";
49
50
51 fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
52 fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
53 fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
54
55 /* Setup the fragment program */
56 glGenProgramsARB(1, &prognum);
57 glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, prognum);
58 glProgramStringARB(GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB,
59 strlen(prog1), (const GLubyte *)prog1);
60
61 errno = glGetError();
62 printf("glGetError = 0x%x\n", errno);
63 if (errno != GL_NO_ERROR) {
64 GLint errorpos;
65
66 glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &errorpos);
67 printf("errorpos: %d\n", errorpos);
68 printf("glError(GL_PROGRAM_ERROR_STRING_ARB) = %s\n",
69 (char *) glGetString(GL_PROGRAM_ERROR_STRING_ARB));
70 }
71 glEnable(GL_FRAGMENT_PROGRAM_ARB);
72
73 glClearColor(0.0, 0.0, 1.0, 0.0);
74 }
75
76 static void Reshape(int width, int height)
77 {
78
79 glViewport(0, 0, (GLint)width, (GLint)height);
80
81 glMatrixMode(GL_PROJECTION);
82 glLoadIdentity();
83 /* glOrtho(-1.0, 1.0, -1.0, 1.0, -0.5, 1000.0); */
84 glMatrixMode(GL_MODELVIEW);
85 }
86
87 static void Key(unsigned char key, int x, int y)
88 {
89
90 switch (key) {
91 case 27:
92 exit(1);
93 default:
94 return;
95 }
96
97 glutPostRedisplay();
98 }
99
100 static void Draw(void)
101 {
102 glClear(GL_COLOR_BUFFER_BIT);
103
104 glBegin(GL_TRIANGLES);
105 glColor3f(0,0,.7);
106 glTexCoord3f(0,0,.7);
107 glVertex3f( 0.9, -0.9, -0.0);
108 glColor3f(.8,0,0);
109 glTexCoord3f(.8,0,0);
110 glVertex3f( 0.9, 0.9, -0.0);
111 glColor3f(0,.9,0);
112 glTexCoord3f(0,.9,0);
113 glVertex3f(-0.9, 0.0, -0.0);
114 glEnd();
115
116 glFlush();
117
118 if (doubleBuffer) {
119 glutSwapBuffers();
120 }
121 }
122
123 static GLenum Args(int argc, char **argv)
124 {
125 GLint i;
126
127 doubleBuffer = GL_FALSE;
128
129 for (i = 1; i < argc; i++) {
130 if (strcmp(argv[i], "-sb") == 0) {
131 doubleBuffer = GL_FALSE;
132 } else if (strcmp(argv[i], "-db") == 0) {
133 doubleBuffer = GL_TRUE;
134 } else {
135 fprintf(stderr, "%s (Bad option).\n", argv[i]);
136 return GL_FALSE;
137 }
138 }
139 return GL_TRUE;
140 }
141
142 int main(int argc, char **argv)
143 {
144 GLenum type;
145
146 glutInit(&argc, argv);
147
148 if (Args(argc, argv) == GL_FALSE) {
149 exit(1);
150 }
151
152 glutInitWindowPosition(0, 0); glutInitWindowSize( 250, 250);
153
154 type = GLUT_RGB | GLUT_ALPHA;
155 type |= (doubleBuffer) ? GLUT_DOUBLE : GLUT_SINGLE;
156 glutInitDisplayMode(type);
157
158 if (glutCreateWindow("First Tri") == GL_FALSE) {
159 exit(1);
160 }
161
162 Init();
163
164 glutReshapeFunc(Reshape);
165 glutKeyboardFunc(Key);
166 glutDisplayFunc(Draw);
167 glutMainLoop();
168 return 0;
169 }