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
|
/*
* Copyright © 2011 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.
*
* Authors:
* Eric Anholt <eric@anholt.net>
*
*/
/** @file glsl-vs-statechange-1.c
*
* Tests for a bug that appeared to exist in Mesa 7.11 where the
* constant attribute color from the previous fixed function setup
* would be used, but was hidden by multiple state updates occurring
* per draw call.
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.window_width = 50;
config.window_height = 50;
config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_ALPHA;
PIGLIT_GL_TEST_CONFIG_END
const char *vs_source =
"void main()\n"
"{\n"
" gl_Position = gl_Vertex;\n"
" gl_FrontColor = vec4(0.0, 0.0, 1.0, 0.0);\n"
"}\n";
static GLint prog;
enum piglit_result
piglit_display(void)
{
bool pass = true;
float green[4] = {0, 1, 0, 0};
float blue[4] = {0, 0, 1, 0};
glColor4fv(green);
piglit_draw_rect(-1, -1, 1, 2);
glUseProgram(prog);
piglit_draw_rect(0, -1, 1, 2);
glUseProgram(0);
pass &= piglit_probe_rect_rgba(0, 0,
piglit_width / 2, piglit_height, green);
pass &= piglit_probe_rect_rgba(piglit_width / 2, 0,
piglit_width / 2, piglit_height, blue);
piglit_present_results();
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
void
piglit_init(int argc, char **argv)
{
GLint vs;
piglit_require_gl_version(20);
vs = piglit_compile_shader_text(GL_VERTEX_SHADER, vs_source);
prog = piglit_link_simple_program(vs, 0);
glDeleteShader(vs);
}
|
