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
|
/*
* 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.
*/
#include "piglit-util-gl-common.h"
/**
* @file generatemipmap.c
*
* Tests that conditional rendering does not affect glGenerateMipmap().
*
* It's something that would be likely to be implemented through
* normal rendering inside of the driver, and thus easy to
* accidentally disable during conditional rendering.
*/
PIGLIT_GL_TEST_MAIN(
32 /*window_width*/,
32 /*window_height*/,
PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_ALPHA)
static void
fill_level(int level, int size, const GLfloat *color)
{
GLfloat *data;
int i;
data = malloc(size * size * 4 * sizeof(GLfloat));
for (i = 0; i < 4 * size * size; i += 4) {
data[i + 0] = color[0];
data[i + 1] = color[1];
data[i + 2] = color[2];
data[i + 3] = color[3];
}
glTexImage2D(GL_TEXTURE_2D, level, GL_RGBA, size, size, 0,
GL_RGBA, GL_FLOAT, data);
free(data);
}
enum piglit_result
piglit_display(void)
{
bool pass = true;
float red[4] = {1.0, 0.0, 0.0, 0.0};
float green[4] = {0.0, 1.0, 0.0, 0.0};
GLuint q, texture;
int tex_size = 64;
int i;
glClearColor(0.5, 0.5, 0.5, 0.5);
glClear(GL_COLOR_BUFFER_BIT);
/* Set up a texture object with green at level 0, red elsewhere */
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D, texture);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
GL_LINEAR_MIPMAP_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_GENERATE_MIPMAP, GL_TRUE);
for (i = 0; tex_size / (1 << i) > 0; i++)
fill_level(i, tex_size / (1 << i), i == 0 ? green : red);
glGenQueries(1, &q);
/* Generate query fail. */
glBeginQuery(GL_SAMPLES_PASSED, q);
glEndQuery(GL_SAMPLES_PASSED);
/* Mipmap generation should not be affected by conditional rendering. */
glBeginConditionalRenderNV(q, GL_QUERY_WAIT_NV);
glGenerateMipmapEXT(GL_TEXTURE_2D);
glEndConditionalRenderNV();
/* This should draw level 1, since starting window size is 32
* and texture is 64.
*/
glEnable(GL_TEXTURE_2D);
piglit_draw_rect_tex(-1, -1, 2, 2,
0, 0, 1, 1);
glDisable(GL_TEXTURE_2D);
pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
green);
piglit_present_results();
glDeleteQueries(1, &q);
return pass ? PIGLIT_PASS : PIGLIT_FAIL;
}
void
piglit_init(int argc, char **argv)
{
piglit_require_gl_version(20);
piglit_require_extension("GL_NV_conditional_render");
piglit_require_extension("GL_EXT_framebuffer_object");
}
|
