void
test_wrap_rectangle_textures (void)
{
float fb_width = cogl_framebuffer_get_width (test_fb);
float fb_height = cogl_framebuffer_get_height (test_fb);
CoglPipeline *base_pipeline;
CoglPipeline *clamp_pipeline;
CoglPipeline *repeat_pipeline;
/* The textures are drawn with the texture coordinates from
* -0.5→1.5. That means we get one complete copy of the texture and
* an extra half of the texture surrounding it. The drawing is
* tested against a 4x4 grid of colors. The center 2x2 colours
* specify the normal texture colors and the other colours specify
* what the wrap mode should generate */
static const uint8_t clamp_colors[] =
{
0x44, 0x44, 0x88, 0x88,
0x44, 0x44, 0x88, 0x88,
0xcc, 0xcc, 0xff, 0xff,
0xcc, 0xcc, 0xff, 0xff
};
static const uint8_t repeat_colors[] =
{
0xff, 0xcc, 0xff, 0xcc,
0x88, 0x44, 0x88, 0x44,
0xff, 0xcc, 0xff, 0xcc,
0x88, 0x44, 0x88, 0x44
};
cogl_framebuffer_orthographic (test_fb,
0, 0, /* x_1, y_1 */
fb_width, /* x_2 */
fb_height /* y_2 */,
-1, 100 /* near/far */);
base_pipeline = create_base_pipeline ();
clamp_pipeline = cogl_pipeline_copy (base_pipeline);
cogl_pipeline_set_layer_wrap_mode (clamp_pipeline,
0, /* layer */
COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE);
repeat_pipeline = cogl_pipeline_copy (base_pipeline);
cogl_pipeline_set_layer_wrap_mode (repeat_pipeline,
0, /* layer */
COGL_PIPELINE_WRAP_MODE_REPEAT);
test_pipeline (clamp_pipeline,
0, 0, /* x/y offset */
clamp_colors);
test_pipeline (repeat_pipeline,
0, DRAW_SIZE * 2, /* x/y offset */
repeat_colors);
cogl_object_unref (repeat_pipeline);
cogl_object_unref (clamp_pipeline);
cogl_object_unref (base_pipeline);
}
/*< private >
* _clutter_paint_node_init_types:
*
* Initializes the required types for ClutterPaintNode subclasses
*/
void
_clutter_paint_node_init_types (void)
{
CoglContext *ctx;
CoglColor cogl_color;
GType node_type G_GNUC_UNUSED;
if (G_LIKELY (default_color_pipeline != NULL))
return;
ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
node_type = clutter_paint_node_get_type ();
cogl_color_init_from_4f (&cogl_color, 1.0, 1.0, 1.0, 1.0);
default_color_pipeline = cogl_pipeline_new (ctx);
cogl_pipeline_set_color (default_color_pipeline, &cogl_color);
default_texture_pipeline = cogl_pipeline_new (ctx);
cogl_pipeline_set_layer_null_texture (default_texture_pipeline, 0,
COGL_TEXTURE_TYPE_2D);
cogl_pipeline_set_color (default_texture_pipeline, &cogl_color);
cogl_pipeline_set_layer_wrap_mode (default_texture_pipeline, 0,
COGL_PIPELINE_WRAP_MODE_AUTOMATIC);
}
static CoglPipeline *
get_base_texture_rgba_pipeline (CoglPangoPipelineCache *cache)
{
if (cache->base_texture_rgba_pipeline == NULL)
{
CoglPipeline *pipeline;
pipeline = cache->base_texture_rgba_pipeline = cogl_pipeline_new ();
cogl_pipeline_set_layer_wrap_mode (pipeline, 0,
COGL_MATERIAL_WRAP_MODE_CLAMP_TO_EDGE);
if (cache->use_mipmapping)
cogl_pipeline_set_layer_filters
(pipeline, 0,
COGL_PIPELINE_FILTER_LINEAR_MIPMAP_LINEAR,
COGL_PIPELINE_FILTER_LINEAR);
}
return cache->base_texture_rgba_pipeline;
}
static void
create_pipeline (CoglTexture **tex_out,
CoglPipeline **pipeline_out)
{
CoglTexture2D *tex;
CoglPipeline *pipeline;
static const uint8_t tex_data[] =
{ 0x00, 0x44, 0x88, 0xcc };
tex = cogl_texture_2d_new_from_data (test_ctx,
2, 2, /* width/height */
COGL_PIXEL_FORMAT_A_8, /* format */
COGL_PIXEL_FORMAT_ANY, /* int. format */
2, /* rowstride */
tex_data,
NULL);
pipeline = cogl_pipeline_new (test_ctx);
cogl_pipeline_set_layer_filters (pipeline,
0, /* layer */
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
cogl_pipeline_set_layer_wrap_mode (pipeline,
0, /* layer */
COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE);
/* This is the layer combine used by cogl-pango */
cogl_pipeline_set_layer_combine (pipeline,
0, /* layer */
"RGBA = MODULATE (PREVIOUS, TEXTURE[A])",
NULL);
cogl_pipeline_set_layer_texture (pipeline,
0, /* layer */
COGL_TEXTURE (tex));
*pipeline_out = pipeline;
*tex_out = COGL_TEXTURE (tex);
}
static void
st_background_effect_init (StBackgroundEffect *self)
{
CoglContext *ctx;
StBackgroundEffectClass *klass = ST_BACKGROUND_EFFECT_GET_CLASS (self);
if (G_UNLIKELY (klass->base_pipeline == NULL))
{
ctx = clutter_backend_get_cogl_context (clutter_get_default_backend ());
klass->base_pipeline = cogl_pipeline_new (ctx);
}
self->pipeline0 = cogl_pipeline_copy (klass->base_pipeline);
self->pipeline1 = cogl_pipeline_copy (klass->base_pipeline);
self->pipeline2 = cogl_pipeline_copy (klass->base_pipeline);
self->pipeline3 = cogl_pipeline_copy (klass->base_pipeline);
self->pipeline4 = cogl_pipeline_copy (klass->base_pipeline);
CoglSnippet *snippet;
snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_TEXTURE_LOOKUP,
box_blur_glsl_declarations,
NULL);
cogl_snippet_set_replace (snippet, box_blur_glsl_shader);
cogl_pipeline_add_layer_snippet (self->pipeline0, 0, snippet);
cogl_pipeline_add_layer_snippet (self->pipeline1, 0, snippet);
cogl_pipeline_add_layer_snippet (self->pipeline3, 0, snippet);
cogl_object_unref (snippet);
cogl_pipeline_set_layer_wrap_mode (self->pipeline0, 0,
COGL_MATERIAL_WRAP_MODE_CLAMP_TO_EDGE);
cogl_pipeline_set_layer_wrap_mode (self->pipeline0, 1,
COGL_PIPELINE_WRAP_MODE_REPEAT);
cogl_pipeline_set_layer_wrap_mode (self->pipeline1, 0,
COGL_MATERIAL_WRAP_MODE_CLAMP_TO_EDGE);
cogl_pipeline_set_layer_wrap_mode (self->pipeline2, 0,
COGL_MATERIAL_WRAP_MODE_CLAMP_TO_EDGE);
cogl_pipeline_set_layer_wrap_mode (self->pipeline3, 0,
COGL_MATERIAL_WRAP_MODE_CLAMP_TO_EDGE);
cogl_pipeline_set_layer_wrap_mode (self->pipeline4, 0,
COGL_MATERIAL_WRAP_MODE_CLAMP_TO_EDGE);
cogl_pipeline_set_cull_face_mode (self->pipeline0,
COGL_PIPELINE_CULL_FACE_MODE_NONE);
cogl_pipeline_set_cull_face_mode (self->pipeline1,
COGL_PIPELINE_CULL_FACE_MODE_NONE);
cogl_pipeline_set_cull_face_mode (self->pipeline2,
COGL_PIPELINE_CULL_FACE_MODE_NONE);
cogl_pipeline_set_cull_face_mode (self->pipeline3,
COGL_PIPELINE_CULL_FACE_MODE_NONE);
cogl_pipeline_set_cull_face_mode (self->pipeline4,
COGL_PIPELINE_CULL_FACE_MODE_NONE);
cogl_pipeline_set_layer_filters (self->pipeline0, 0,
COGL_PIPELINE_FILTER_LINEAR,
COGL_PIPELINE_FILTER_LINEAR);
cogl_pipeline_set_layer_filters (self->pipeline0, 1,
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
cogl_pipeline_set_layer_filters (self->pipeline1, 0,
COGL_PIPELINE_FILTER_LINEAR,
COGL_PIPELINE_FILTER_LINEAR);
cogl_pipeline_set_layer_filters (self->pipeline2, 0,
COGL_PIPELINE_FILTER_LINEAR,
COGL_PIPELINE_FILTER_LINEAR);
cogl_pipeline_set_layer_filters (self->pipeline3, 0,
COGL_PIPELINE_FILTER_LINEAR,
COGL_PIPELINE_FILTER_LINEAR);
cogl_pipeline_set_layer_filters (self->pipeline4, 0,
COGL_PIPELINE_FILTER_LINEAR,
COGL_PIPELINE_FILTER_LINEAR);
cogl_pipeline_set_layer_null_texture (self->pipeline0,
0,
COGL_TEXTURE_TYPE_2D);
cogl_pipeline_set_layer_null_texture (self->pipeline1,
0,
COGL_TEXTURE_TYPE_2D);
cogl_pipeline_set_layer_null_texture (self->pipeline2,
0,
COGL_TEXTURE_TYPE_2D);
cogl_pipeline_set_layer_null_texture (self->pipeline3,
0,
COGL_TEXTURE_TYPE_2D);
cogl_pipeline_set_layer_null_texture (self->pipeline4,
0,
COGL_TEXTURE_TYPE_2D);
self->pixel_step_uniform0 =
cogl_pipeline_get_uniform_location (self->pipeline0, "pixel_step");
self->BumpTex_uniform =
cogl_pipeline_get_uniform_location (self->pipeline0, "BumpTex");
self->bump_step_uniform =
cogl_pipeline_get_uniform_location (self->pipeline0, "bump_step");
self->pixel_step_uniform1 =
cogl_pipeline_get_uniform_location (self->pipeline1, "pixel_step");
self->pixel_step_uniform2 =
cogl_pipeline_get_uniform_location (self->pipeline3, "pixel_step");
cogl_pipeline_set_blend (self->pipeline0,
"RGBA = ADD(SRC_COLOR, DST_COLOR*0)",
NULL);
cogl_pipeline_set_blend (self->pipeline1,
"RGBA = ADD (SRC_COLOR*DST_COLOR[A], DST_COLOR*(1-DST_COLOR[A]))",
NULL);
cogl_pipeline_set_color4ub (self->pipeline1,
0xff,
0xff,
0xff,
0xff);
cogl_pipeline_set_alpha_test_function (self->pipeline2,
COGL_PIPELINE_ALPHA_FUNC_LESS,
0.004f);
cogl_pipeline_set_color_mask (self->pipeline2,
COGL_COLOR_MASK_ALPHA);
cogl_pipeline_set_blend (self->pipeline2,
"RGBA = ADD(SRC_COLOR, DST_COLOR*0)",
NULL);
cogl_pipeline_set_alpha_test_function (self->pipeline3,
COGL_PIPELINE_ALPHA_FUNC_GEQUAL,
0.004f);
cogl_pipeline_set_color_mask (self->pipeline3,
COGL_COLOR_MASK_ALL);
cogl_pipeline_set_blend (self->pipeline3,
"RGBA = ADD (SRC_COLOR, DST_COLOR*(1-SRC_COLOR[A]))",
NULL);
cogl_pipeline_set_alpha_test_function (self->pipeline4,
COGL_PIPELINE_ALPHA_FUNC_GEQUAL,
0.004f);
cogl_pipeline_set_color_mask (self->pipeline4,
COGL_COLOR_MASK_ALL);
cogl_pipeline_set_blend (self->pipeline4,
"RGBA = ADD (SRC_COLOR, DST_COLOR*(1-SRC_COLOR[A]))",
NULL);
self->bg_texture = NULL;
self->bg_sub_texture = NULL;
self->bumpmap_location = "/usr/share/cinnamon/bumpmaps/frost.png";
self->bg_bumpmap = st_cogl_texture_new_from_file_wrapper (self->bumpmap_location,
COGL_TEXTURE_NO_SLICING,
COGL_PIXEL_FORMAT_RGBA_8888_PRE);
if (self->bg_bumpmap != NULL)
{
self->bumptex_width_i = cogl_texture_get_width (self->bg_bumpmap);
self->bumptex_height_i = cogl_texture_get_height (self->bg_bumpmap);
cogl_pipeline_set_layer_texture (self->pipeline0, 1, self->bg_bumpmap);
}
else
{
cogl_pipeline_set_layer_null_texture (self->pipeline0,
1,
COGL_TEXTURE_TYPE_2D);
}
cogl_pipeline_set_layer_combine (self->pipeline0,1,
"RGBA = REPLACE (PREVIOUS)",
NULL);
self->old_time = 0;
self->opacity = 0;
}
static CoglPipeline *
create_1d_gaussian_blur_pipeline (RutContext *ctx, int n_taps)
{
static GHashTable *pipeline_cache = NULL;
CoglPipeline *pipeline;
CoglSnippet *snippet;
GString *shader;
CoglDepthState depth_state;
int i;
/* initialize the pipeline cache. The shaders are only dependent on the
* number of taps, not the sigma, so we cache the corresponding pipelines
* in a hash table 'n_taps' => 'pipeline' */
if (G_UNLIKELY (pipeline_cache == NULL))
{
pipeline_cache =
g_hash_table_new_full (g_direct_hash,
g_direct_equal,
NULL, /* key destroy notify */
(GDestroyNotify) cogl_object_unref);
}
pipeline = g_hash_table_lookup (pipeline_cache, GINT_TO_POINTER (n_taps));
if (pipeline)
return cogl_object_ref (pipeline);
shader = g_string_new (NULL);
g_string_append_printf (shader,
"uniform vec2 pixel_step;\n"
"uniform float factors[%i];\n",
n_taps);
snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_TEXTURE_LOOKUP,
shader->str,
NULL /* post */);
g_string_set_size (shader, 0);
pipeline = cogl_pipeline_new (ctx->cogl_context);
cogl_pipeline_set_layer_null_texture (pipeline,
0, /* layer_num */
COGL_TEXTURE_TYPE_2D);
cogl_pipeline_set_layer_wrap_mode (pipeline,
0, /* layer_num */
COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE);
cogl_pipeline_set_layer_filters (pipeline,
0, /* layer_num */
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
for (i = 0; i < n_taps; i++)
{
g_string_append (shader, "cogl_texel ");
if (i == 0)
g_string_append (shader, "=");
else
g_string_append (shader, "+=");
g_string_append_printf (shader,
" texture2D (cogl_sampler, "
"cogl_tex_coord.st");
if (i != (n_taps - 1) / 2)
g_string_append_printf (shader,
" + pixel_step * %f",
(float) (i - ((n_taps - 1) / 2)));
g_string_append_printf (shader,
") * factors[%i];\n",
i);
}
cogl_snippet_set_replace (snippet, shader->str);
g_string_free (shader, TRUE);
cogl_pipeline_add_layer_snippet (pipeline, 0, snippet);
cogl_object_unref (snippet);
cogl_pipeline_set_blend (pipeline, "RGBA=ADD(SRC_COLOR, 0)", NULL);
cogl_depth_state_init (&depth_state);
cogl_depth_state_set_write_enabled (&depth_state, FALSE);
cogl_depth_state_set_test_enabled (&depth_state, FALSE);
cogl_pipeline_set_depth_state (pipeline, &depth_state, NULL);
g_hash_table_insert (pipeline_cache, GINT_TO_POINTER (n_taps), pipeline);
return pipeline;
}
void
test_map_buffer_range (void)
{
CoglTexture2D *tex;
CoglPipeline *pipeline;
int fb_width, fb_height;
CoglAttributeBuffer *buffer;
CoglVertexP2T2 *data;
CoglAttribute *pos_attribute;
CoglAttribute *tex_coord_attribute;
CoglPrimitive *primitive;
tex = cogl_texture_2d_new_from_data (test_ctx,
2, 2, /* width/height */
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
COGL_PIXEL_FORMAT_ANY,
2 * 4, /* rowstride */
tex_data,
NULL /* error */);
pipeline = cogl_pipeline_new (test_ctx);
cogl_pipeline_set_layer_texture (pipeline, 0, COGL_TEXTURE (tex));
cogl_pipeline_set_layer_filters (pipeline,
0, /* layer */
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
cogl_pipeline_set_layer_wrap_mode (pipeline,
0, /* layer */
COGL_PIPELINE_WRAP_MODE_CLAMP_TO_EDGE);
fb_width = cogl_framebuffer_get_width (test_fb);
fb_height = cogl_framebuffer_get_height (test_fb);
buffer = cogl_attribute_buffer_new (test_ctx,
sizeof (vertex_data),
vertex_data);
/* Replace the texture coordinates of the third vertex with the
* coordinates for a green texel */
data = cogl_buffer_map_range (COGL_BUFFER (buffer),
sizeof (vertex_data[0]) * 2,
sizeof (vertex_data[0]),
COGL_BUFFER_ACCESS_WRITE,
COGL_BUFFER_MAP_HINT_DISCARD_RANGE,
NULL); /* don't catch errors */
g_assert (data != NULL);
data->x = vertex_data[2].x;
data->y = vertex_data[2].y;
data->s = 1.0f;
data->t = 0.0f;
cogl_buffer_unmap (COGL_BUFFER (buffer));
pos_attribute =
cogl_attribute_new (buffer,
"cogl_position_in",
sizeof (vertex_data[0]),
offsetof (CoglVertexP2T2, x),
2, /* n_components */
COGL_ATTRIBUTE_TYPE_FLOAT);
tex_coord_attribute =
cogl_attribute_new (buffer,
"cogl_tex_coord_in",
sizeof (vertex_data[0]),
offsetof (CoglVertexP2T2, s),
2, /* n_components */
COGL_ATTRIBUTE_TYPE_FLOAT);
cogl_framebuffer_clear4f (test_fb,
COGL_BUFFER_BIT_COLOR,
0, 0, 0, 1);
primitive =
cogl_primitive_new (COGL_VERTICES_MODE_TRIANGLE_STRIP,
4, /* n_vertices */
pos_attribute,
tex_coord_attribute,
NULL);
cogl_primitive_draw (primitive, test_fb, pipeline);
cogl_object_unref (primitive);
/* Top left pixel should be the one that is replaced to be green */
test_utils_check_pixel (test_fb, 1, 1, 0x00ff00ff);
/* The other three corners should be left as red */
test_utils_check_pixel (test_fb, fb_width - 2, 1, 0xff0000ff);
test_utils_check_pixel (test_fb, 1, fb_height - 2, 0xff0000ff);
test_utils_check_pixel (test_fb, fb_width - 2, fb_height - 2, 0xff0000ff);
cogl_object_unref (buffer);
cogl_object_unref (pos_attribute);
cogl_object_unref (tex_coord_attribute);
cogl_object_unref (pipeline);
cogl_object_unref (tex);
if (cogl_test_verbose ())
g_print ("OK\n");
}
