mutter/tests/conform/test-sparse-pipeline.c

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#include <cogl/cogl2-experimental.h>
#include <string.h>
#include "test-utils.h"
typedef struct _TestState
{
CoglContext *ctx;
int fb_width;
int fb_height;
CoglFramebuffer *fb;
} TestState;
static void
test_sparse_layer_combine (TestState *state)
{
CoglPipeline *pipeline;
CoglTexture *tex1, *tex2;
cogl_framebuffer_clear4f (state->fb, COGL_BUFFER_BIT_COLOR, 0, 0, 0, 1);
/* This tests that the TEXTURE_* numbers used in the layer combine
string refer to the layer number rather than the unit numbers by
creating a pipeline with very large layer numbers. This should
end up being mapped to much smaller unit numbers */
tex1 = test_utils_create_color_texture (state->ctx, 0xff0000ff);
tex2 = test_utils_create_color_texture (state->ctx, 0x00ff00ff);
pipeline = cogl_pipeline_new (state->ctx);
cogl_pipeline_set_layer_texture (pipeline, 50, tex1);
cogl_pipeline_set_layer_texture (pipeline, 100, tex2);
cogl_pipeline_set_layer_combine (pipeline, 200,
"RGBA = ADD(TEXTURE_50, TEXTURE_100)",
NULL);
cogl_push_source (pipeline);
cogl_rectangle (-1, -1, 1, 1);
cogl_pop_source ();
test_utils_check_pixel (2, 2, 0xffff00ff);
cogl_object_unref (pipeline);
cogl_object_unref (tex1);
cogl_object_unref (tex2);
}
void
test_cogl_sparse_pipeline (TestUtilsGTestFixture *fixture,
void *data)
{
TestUtilsSharedState *shared_state = data;
TestState state;
state.ctx = shared_state->ctx;
state.fb_width = cogl_framebuffer_get_width (shared_state->fb);
state.fb_height = cogl_framebuffer_get_height (shared_state->fb);
state.fb = shared_state->fb;
test_sparse_layer_combine (&state);
/* FIXME: This should have a lot more tests, for example testing
whether using an attribute with sparse texture coordinates will
work */
if (cogl_test_verbose ())
g_print ("OK\n");
}