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test-snippets: Add a test case for sampling arbitrary units

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This adds a sub-test that samples from two texture units by naming
their layer numbers.

Reviewed-by: Robert Bragg <robert@linux.intel.com>
This commit is contained in:
Neil Roberts 2012-02-10 16:58:31 +00:00
parent d7164f9579
commit a654dac122
1 changed files with 43 additions and 0 deletions
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43
tests/conform/test-snippets.c
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@ -7,6 +7,7 @@
typedef struct _TestState
{
CoglFramebuffer *fb;
CoglContext *context;
} TestState;
typedef void (* SnippetTestFunc) (TestState *state);
@ -590,6 +591,46 @@ test_snippet_order (TestState *state)
test_utils_check_pixel (165, 5, 0x80ff00ff);
}
static void
test_naming_texture_units (TestState *state)
{
CoglPipeline *pipeline;
CoglSnippet *snippet;
CoglTexture *tex1, *tex2;
/* Test that we can sample from an arbitrary texture unit by naming
its layer number */
snippet = cogl_snippet_new (COGL_SNIPPET_HOOK_FRAGMENT,
NULL,
NULL);
cogl_snippet_set_replace (snippet,
"cogl_color_out = "
"texture2D (cogl_sampler100, vec2 (0.0, 0.0)) + "
"texture2D (cogl_sampler200, vec2 (0.0, 0.0));");
tex1 = test_utils_create_color_texture (state->context, 0xff0000ff);
tex2 = test_utils_create_color_texture (state->context, 0x00ff00ff);
pipeline = cogl_pipeline_new ();
cogl_pipeline_set_layer_texture (pipeline, 100, tex1);
cogl_pipeline_set_layer_texture (pipeline, 200, tex2);
cogl_pipeline_add_snippet (pipeline, snippet);
cogl_push_source (pipeline);
cogl_rectangle (0, 0, 10, 10);
cogl_pop_source ();
cogl_object_unref (pipeline);
cogl_object_unref (snippet);
cogl_object_unref (tex1);
cogl_object_unref (tex2);
test_utils_check_pixel (5, 5, 0xffff00ff);
}
static void
test_snippet_properties (TestState *state)
{
@ -651,6 +692,7 @@ tests[] =
test_replace_vertex_layer,
test_vertex_transform_hook,
test_snippet_order,
test_naming_texture_units,
test_snippet_properties
};
@ -681,6 +723,7 @@ test_cogl_snippets (TestUtilsGTestFixture *fixture,
TestState state;
state.fb = shared_state->fb;
state.context = shared_state->ctx;
cogl_ortho (/* left, right */
0, cogl_framebuffer_get_width (shared_state->fb),