isa/mutter
1
0
Fork 0
mirror of https://github.com/brl/mutter.git synced 2025-06-14 01:09:30 +00:00
Code Issues Packages Projects Releases Wiki Activity

snippet: Add a hook for the layer fragment processing

Browse Source 
This adds a hook to replace or wrap the fragment processing for a
particular layer.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
This commit is contained in:
Neil Roberts
2011-11-25 23:16:31 +00:00
committed by Robert Bragg
parent 4581ce5f15
commit b7e15929b6
3 changed files with 201 additions and 53 deletions
Download Patch File Download Diff File Expand all files Collapse all files

45
tests/conform/test-snippets.c
View File

@ -268,6 +268,49 @@ paint (TestState *state)
cogl_pop_source ();
cogl_object_unref (pipeline);
/* Test replacing the layer code */
pipeline = create_texture_pipeline ();
snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_LAYER_FRAGMENT, NULL, NULL);
cogl_snippet_set_replace (snippet, "cogl_layer = vec4 (0.0, 0.0, 1.0, 1.0);");
cogl_pipeline_add_layer_snippet (pipeline, 0, snippet);
cogl_object_unref (snippet);
/* Add a second layer which samples from the texture in the first
layer. The snippet override should cause the first layer not to
generate the code for the texture lookup but this second layer
should still be able to cause it to be generated */
cogl_pipeline_set_layer_combine (pipeline, 1,
"RGB = ADD(TEXTURE_0, PREVIOUS)"
"A = REPLACE(PREVIOUS)",
NULL);
cogl_push_source (pipeline);
cogl_rectangle_with_texture_coords (110, 0, 120, 10,
0, 0, 0, 0);
cogl_pop_source ();
cogl_object_unref (pipeline);
/* Test modifying the layer code */
pipeline = cogl_pipeline_new ();
cogl_pipeline_set_uniform_1f (pipeline,
cogl_pipeline_get_uniform_location (pipeline,
"a_value"),
0.5);
snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_LAYER_FRAGMENT,
"uniform float a_value;",
"cogl_layer.g = a_value;");
cogl_pipeline_add_layer_snippet (pipeline, 0, snippet);
cogl_object_unref (snippet);
cogl_push_source (pipeline);
cogl_rectangle_with_texture_coords (120, 0, 130, 10,
0, 0, 0, 0);
cogl_pop_source ();
cogl_object_unref (pipeline);
/* Sanity check modifying the snippet */
snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_FRAGMENT, "foo", "bar");
g_assert_cmpstr (cogl_snippet_get_declarations (snippet), ==, "foo");
@ -318,6 +361,8 @@ validate_result (void)
test_utils_check_pixel (85, 5, 0x00ffffff);
test_utils_check_pixel (95, 5, 0x0000ffff);
test_utils_check_pixel (105, 5, 0xff0000ff);
test_utils_check_pixel (115, 5, 0xff00ffff);
test_utils_check_pixel (125, 5, 0xff80ffff);
}
void