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
|
/*
* Copyright (c) The Piglit project 2007
*
* 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
* on the rights to use, copy, modify, merge, publish, distribute, sub
* license, 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 (including the next
* paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
* VA LINUX SYSTEM, IBM AND/OR THEIR SUPPLIERS 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.
*/
/**
* Test whether LIT honours the output mask.
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.window_width = 200;
config.window_height = 200;
config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_DEPTH;
PIGLIT_GL_TEST_CONFIG_END
static GLuint FragProg[15];
static const char fragProgramTemplate[] =
"!!ARBfp1.0\n"
"PARAM values = { 0.65, 0.9, 0.0, 8.0 }; \n"
"PARAM bogus = { 0.8, 0.8, 0.8, 0.8 }; \n"
"MOV result.color, bogus; \n"
"LIT result.color.%s, values; \n"
"END\n";
static float LitExpected[4] = { 1.0, 0.65, 0.433, 1.0 };
static void DoFrame(void)
{
int mask;
glClearColor(0.0, 0.0, 0.0, 0.0);
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glEnable(GL_FRAGMENT_PROGRAM_ARB);
for(mask = 1; mask < 16; ++mask) {
glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, FragProg[mask-1]);
glPushMatrix();
glTranslatef((mask % 4), (mask / 4), 0.0);
glBegin(GL_QUADS);
glVertex2f(0, 0);
glVertex2f(1, 0);
glVertex2f(1, 1);
glVertex2f(0, 1);
glEnd();
glPopMatrix();
}
}
static int DoTest( void )
{
int mask;
GLfloat dmax;
dmax = 0;
for(mask = 1; mask < 16; ++mask) {
GLfloat probe[4];
GLfloat delta[4];
int i;
glReadPixels(piglit_width * (2*(mask%4)+1)/8,
piglit_height * (2*(mask/4)+1)/8, 1, 1,
GL_RGBA, GL_FLOAT, probe);
printf("Probe %i: %f,%f,%f,%f\n", mask, probe[0], probe[1], probe[2], probe[3]);
for(i = 0; i < 4; ++i) {
if (mask & (1 << i))
delta[i] = probe[i] - LitExpected[i];
else
delta[i] = probe[i] - 0.8;
if (delta[i] > dmax) dmax = delta[i];
else if (-delta[i] > dmax) dmax = -delta[i];
}
printf(" Delta: %f,%f,%f,%f\n", delta[0], delta[1], delta[2], delta[3]);
}
printf("Max delta: %f\n", dmax);
if (dmax >= 0.02)
return 0;
else
return 1;
}
enum piglit_result
piglit_display(void)
{
int pass;
DoFrame();
pass = DoTest();
piglit_present_results();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
void piglit_init(int argc, char **argv)
{
int mask;
printf("GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
piglit_require_fragment_program();
/*
* Fragment programs
*/
for(mask = 1; mask < 16; ++mask) {
char programText[1024];
char maskstring[5];
maskstring[0] = 0;
if (mask & 1) strcat(maskstring, "x");
if (mask & 2) strcat(maskstring, "y");
if (mask & 4) strcat(maskstring, "z");
if (mask & 8) strcat(maskstring, "w");
sprintf(programText, fragProgramTemplate, maskstring);
FragProg[mask-1] = piglit_compile_program(GL_FRAGMENT_PROGRAM_ARB, programText);
}
piglit_ortho_projection(4.0, 4.0, GL_FALSE);
}
|
