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
|
/*
* Copyright © 2009 Intel Corporation
*
* 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
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* 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 NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS 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.
*/
/**
* \file fp-abs-01.c
* Validate the ABS instruction in GL_ARB_fragment_program
*
* \author Ian Romanick <ian.d.romanick@intel.com>
*/
#include "piglit-util-gl-common.h"
#define TEST_ROWS 1
#define TEST_COLS 2
#define BOX_SIZE 32
PIGLIT_GL_TEST_CONFIG_BEGIN
config.window_width = (((BOX_SIZE+1)*TEST_COLS)+1);
config.window_height = (((BOX_SIZE+1)*TEST_ROWS)+1);
config.window_visual = PIGLIT_GL_VISUAL_DOUBLE;
PIGLIT_GL_TEST_CONFIG_END
static const char cos_shader_source[] =
"!!ARBfp1.0\n"
"ATTRIB input0 = fragment.texcoord[0];\n"
"ATTRIB input1 = fragment.texcoord[1];\n"
"TEMP R0, R1, R2;\n"
"\n"
"MOV R2, {0.0, 0.0, 0.0, 1.0};\n"
"\n"
"# Assume that input1.x is 1.0. COS(PI) is -1. This means\n"
"# that R2.y should end up with -1.0.\n"
"MUL R0, input1.x, 3.14159265358979323846;\n"
"COS R0, R0.x;\n"
"DP4 R2.y, R0, 0.25;\n"
"\n"
"ABS result.color, R2;\n"
"END\n"
;
static const char sge_shader_source[] =
"!!ARBfp1.0\n"
"ATTRIB input0 = fragment.texcoord[0];\n"
"ATTRIB input1 = fragment.texcoord[1];\n"
"TEMP R0, R1, R2;\n"
"\n"
"MOV R2, {0.0, 1.0, 0.0, 1.0};\n"
"\n"
"# By convention, all components of input0 are < 0.0, and\n"
"# input0 = -input1.\n"
"# The dot-product compacts the four components into a single\n"
"# component. R2.x should be 0.0.\n"
"ABS R1, input0;\n"
"ADD R0, -input1, R1;\n"
"SGE R1, R0, 1e-15;\n"
"SLT R0, R0, -1e-15;\n"
"DP4 R1, R1, 1.0;\n"
"DP4 R0, R0, 1.0;\n"
"ADD R2.x, R1, R2;\n"
"\n"
"# If R2.x is not 0.0 as it should be, set R2.y != 1.0\n"
"DP3 R1, R2.xxxx, 1.0;\n"
"SUB R2.y, R2, R1;\n"
"\n"
"MOV result.color, R2;\n"
"END\n"
;
static const char vert_shader_source[] =
"!!ARBvp1.0\n"
"ATTRIB iPos = vertex.position;\n"
"OUTPUT oPos = result.position;\n"
"PARAM mvp[4] = { state.matrix.mvp };\n"
"DP4 oPos.x, mvp[0], iPos;\n"
"DP4 oPos.y, mvp[1], iPos;\n"
"DP4 oPos.z, mvp[2], iPos;\n"
"DP4 oPos.w, mvp[3], iPos;\n"
"MOV result.texcoord[0], -vertex.color;\n"
"MOV result.texcoord[1], vertex.color;\n"
"END"
;
/**
* \name Handles to fragment programs.
*/
/*@{*/
static GLint progs[TEST_COLS];
static GLint vert_prog;
/*@}*/
enum piglit_result
piglit_display(void)
{
static const GLfloat color[4] = { 0.0, 1.0, 0.0, 0.0 };
enum piglit_result result = PIGLIT_PASS;
unsigned i;
glClear(GL_COLOR_BUFFER_BIT);
glEnable(GL_FRAGMENT_PROGRAM_ARB);
glEnable(GL_VERTEX_PROGRAM_ARB);
glColor4f(1.0, 0.6, 0.3, 0.1);
glBindProgramARB(GL_VERTEX_PROGRAM_ARB, vert_prog);
for (i = 0; i < ARRAY_SIZE(progs); i++) {
const int x = 1 + (i * (BOX_SIZE + 1));
glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, progs[i]);
piglit_draw_rect(x, 1, BOX_SIZE, BOX_SIZE);
if (!piglit_probe_pixel_rgb(x + (BOX_SIZE / 2),
1 + (BOX_SIZE / 2),
color)) {
result = PIGLIT_FAIL;
}
}
piglit_present_results();
return result;
}
void
piglit_init(int argc, char **argv)
{
(void) argc;
(void) argv;
piglit_require_vertex_program();
piglit_require_fragment_program();
piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
progs[0] = piglit_compile_program(GL_FRAGMENT_PROGRAM_ARB,
cos_shader_source);
progs[1] = piglit_compile_program(GL_FRAGMENT_PROGRAM_ARB,
sge_shader_source);
vert_prog = piglit_compile_program(GL_VERTEX_PROGRAM_ARB,
vert_shader_source);
glClearColor(0.5, 0.5, 0.5, 1.0);
}
|
