mutter/tests/conform/test-pipeline-user-matrix.c
Robert Bragg b5a7657076 Starts porting Cogl conformance tests from Clutter
This makes a start on porting the Cogl conformance tests that currently
still live in the Clutter repository to be standalone Cogl tests that no
longer require a ClutterStage.

The main thing is that this commit brings in is the basic testing
infrastructure we need, so now we can port more and more tests
incrementally.

Since the test suite wants a way to synchronize X requests/replies and
we can't simply call XSynchronize in the test-utils code before we know
if we are really running on X this adds a check for an environment
variable named "COGL_X11_SYNC" in cogl-xlib-renderer.c and if it's set
it forces XSynchronize (dpy, TRUE) to be called.

By default the conformance tests are run off screen. This makes the
tests run much faster and they also don't interfere with other work you
may want to do by constantly stealing focus. CoglOnscreen framebuffers
obviously don't get tested this way so it's important that the tests
also get run on screen every once in a while, especially if changes are
being made to CoglFramebuffer related code.  On screen testing can be
enabled by setting COGL_TEST_ONSCREEN=1 in your environment.
2011-09-08 15:48:07 +01:00

145 lines
4.7 KiB
C

#include <clutter/clutter.h>
#include <string.h>
#include "test-conform-common.h"
static const ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff };
static void
paint_cb (ClutterActor *stage)
{
/* This texture is painted mirrored around the x-axis */
guint8 data0[] = {
0xff, 0x00, 0x00, /* red -> becomes bottom left */
0x00, 0xff, 0x00, /* green -> becomes bottom right */
0x00, 0x00, 0xff, /* blue -> becomes top left */
0xff, 0x00, 0xff /* magenta -> becomes top right */
};
/* This texture is painted mirrored about the y-axis */
guint8 data1[] = {
0x00, 0xff, 0x00, /* green -> becomes top right */
0xff, 0xff, 0x00, /* yellow -> becomes top left */
0xff, 0x00, 0xff, /* magenta -> becomes bottom right */
0x00, 0xff, 0xff /* cyan -> becomes bottom left */
};
CoglHandle tex0, tex1;
CoglPipeline *pipeline;
CoglMatrix matrix;
int width, height;
guint8 *pixels, *p;
width = clutter_actor_get_width (stage);
height = clutter_actor_get_height (stage);
tex0 = cogl_texture_new_from_data (2, 2,
COGL_TEXTURE_NO_ATLAS,
COGL_PIXEL_FORMAT_RGB_888,
COGL_PIXEL_FORMAT_ANY,
6,
data0);
tex1 = cogl_texture_new_from_data (2, 2,
COGL_TEXTURE_NO_ATLAS,
COGL_PIXEL_FORMAT_RGB_888,
COGL_PIXEL_FORMAT_ANY,
6,
data1);
pipeline = cogl_pipeline_new ();
/* Set the two textures as layers */
cogl_pipeline_set_layer_texture (pipeline, 0, tex0);
cogl_pipeline_set_layer_filters (pipeline, 0,
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
cogl_pipeline_set_layer_texture (pipeline, 1, tex1);
cogl_pipeline_set_layer_filters (pipeline, 1,
COGL_PIPELINE_FILTER_NEAREST,
COGL_PIPELINE_FILTER_NEAREST);
/* Set a combine mode so that the two textures get added together */
cogl_pipeline_set_layer_combine (pipeline, 1,
"RGBA=ADD(PREVIOUS, TEXTURE)",
NULL);
/* Set a matrix on the first layer so that it will mirror about the y-axis */
cogl_matrix_init_identity (&matrix);
cogl_matrix_translate (&matrix, 0.0f, 1.0f, 0.0f);
cogl_matrix_scale (&matrix, 1.0f, -1.0f, 1.0f);
cogl_pipeline_set_layer_matrix (pipeline, 0, &matrix);
/* Set a matrix on the second layer so that it will mirror about the x-axis */
cogl_matrix_init_identity (&matrix);
cogl_matrix_translate (&matrix, 1.0f, 0.0f, 0.0f);
cogl_matrix_scale (&matrix, -1.0f, 1.0f, 1.0f);
cogl_pipeline_set_layer_matrix (pipeline, 1, &matrix);
cogl_set_source (pipeline);
cogl_rectangle (0, 0, width, height);
cogl_handle_unref (tex1);
cogl_handle_unref (tex0);
cogl_object_unref (pipeline);
/* The textures are setup so that when added together with the
correct matrices then all of the pixels should be white. We can
verify this by reading back the entire stage */
pixels = g_malloc (width * height * 4);
cogl_read_pixels (0, 0, width, height,
COGL_READ_PIXELS_COLOR_BUFFER,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
pixels);
for (p = pixels + width * height * 4; p > pixels;)
{
p -= 4;
g_assert_cmpint (p[0], ==, 0xff);
g_assert_cmpint (p[1], ==, 0xff);
g_assert_cmpint (p[2], ==, 0xff);
}
g_free (pixels);
clutter_main_quit ();
}
static gboolean
queue_redraw (gpointer stage)
{
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
return TRUE;
}
void
test_cogl_pipeline_user_matrix (TestUtilsGTestFixture *fixture,
void *data)
{
ClutterActor *stage;
unsigned int idle_source;
unsigned int paint_handler;
stage = clutter_stage_get_default ();
clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
/* We force continuous redrawing of the stage, since we need to skip
* the first few frames, and we wont be doing anything else that
* will trigger redrawing. */
idle_source = g_idle_add (queue_redraw, stage);
paint_handler = g_signal_connect_after (stage, "paint",
G_CALLBACK (paint_cb),
NULL);
clutter_actor_show (stage);
clutter_main ();
g_source_remove (idle_source);
g_signal_handler_disconnect (stage, paint_handler);
if (g_test_verbose ())
g_print ("OK\n");
}