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
|
#include <cogl/cogl2-experimental.h>
#include "test-utils.h"
#define POINT_SIZE 8
static const CoglVertexP2T2
point =
{
POINT_SIZE, POINT_SIZE,
0.0f, 0.0f
};
static const guint8
tex_data[3 * 2 * 2] =
{
0x00, 0x00, 0xff, 0x00, 0xff, 0x00,
0x00, 0xff, 0xff, 0xff, 0x00, 0x00
};
void
test_cogl_point_sprite (TestUtilsGTestFixture *fixture,
void *data)
{
TestUtilsSharedState *shared_state = data;
CoglContext *ctx = shared_state->ctx;
int fb_width = cogl_framebuffer_get_width (shared_state->fb);
int fb_height = cogl_framebuffer_get_height (shared_state->fb);
CoglPrimitive *prim;
GError *error = NULL;
CoglTexture2D *tex_2d;
CoglPipeline *pipeline, *solid_pipeline;
gboolean res;
cogl_framebuffer_orthographic (shared_state->fb,
0, 0, /* x_1, y_1 */
fb_width, /* x_2 */
fb_height /* y_2 */,
-1, 100 /* near/far */);
cogl_framebuffer_clear4f (shared_state->fb,
COGL_BUFFER_BIT_COLOR,
1.0f, 1.0f, 1.0f, 1.0f);
tex_2d = cogl_texture_2d_new_from_data (ctx,
2, 2, /* width/height */
COGL_PIXEL_FORMAT_RGB_888,
COGL_PIXEL_FORMAT_ANY,
6, /* row stride */
tex_data,
&error);
g_assert (tex_2d != NULL);
g_assert (error == NULL);
pipeline = cogl_pipeline_new (ctx);
cogl_pipeline_set_layer_texture (pipeline, 0, COGL_TEXTURE (tex_2d));
res = cogl_pipeline_set_layer_point_sprite_coords_enabled (pipeline,
/* layer_index */
0,
/* enable */
TRUE,
&error);
g_assert (res == TRUE);
g_assert (error == NULL);
cogl_pipeline_set_layer_filters (pipeline,
0, /* layer_index */
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
cogl_pipeline_set_point_size (pipeline, POINT_SIZE);
prim = cogl_primitive_new_p2t2 (ctx,
COGL_VERTICES_MODE_POINTS,
1, /* n_vertices */
&point);
cogl_framebuffer_draw_primitive (shared_state->fb,
pipeline,
prim);
/* Render the primitive again without point sprites to make sure
disabling it works */
solid_pipeline = cogl_pipeline_copy (pipeline);
cogl_pipeline_set_layer_point_sprite_coords_enabled (solid_pipeline,
/* layer_index */
0,
/* enable */
FALSE,
&error);
cogl_framebuffer_push_matrix (shared_state->fb);
cogl_framebuffer_translate (shared_state->fb,
POINT_SIZE * 2, /* x */
0.0f, /* y */
0.0f /* z */);
cogl_framebuffer_draw_primitive (shared_state->fb,
solid_pipeline,
prim);
cogl_framebuffer_pop_matrix (shared_state->fb);
cogl_object_unref (prim);
cogl_object_unref (solid_pipeline);
cogl_object_unref (pipeline);
cogl_object_unref (tex_2d);
test_utils_check_pixel (POINT_SIZE - POINT_SIZE / 4,
POINT_SIZE - POINT_SIZE / 4,
0x0000ffff);
test_utils_check_pixel (POINT_SIZE + POINT_SIZE / 4,
POINT_SIZE - POINT_SIZE / 4,
0x00ff00ff);
test_utils_check_pixel (POINT_SIZE - POINT_SIZE / 4,
POINT_SIZE + POINT_SIZE / 4,
0x00ffffff);
test_utils_check_pixel (POINT_SIZE + POINT_SIZE / 4,
POINT_SIZE + POINT_SIZE / 4,
0xff0000ff);
/* When rendering without the point sprites all of the texture
coordinates should be 0,0 so it should get the top-left texel
which is blue */
test_utils_check_region (POINT_SIZE * 3 - POINT_SIZE / 2 + 1,
POINT_SIZE - POINT_SIZE / 2 + 1,
POINT_SIZE - 2, POINT_SIZE - 2,
0x0000ffff);
if (cogl_test_verbose ())
g_print ("OK\n");
}
|
