mutter/tests/conform/test-texture-mipmaps.c
Robert Bragg bbcbece6c9 tests: Improve thoroughness and reporting of make test
This patch reworks our conformance testing framework because it seems
that glib's gtesting framework isn't really well suited to our use case.
For example we weren't able to test windows builds given the way we
were using it and also for each test we'd like to repeat the test
with several different environments so we can test important driver and
feature combinations.

This patch instead switches away to a simplified but custom approach for
running our unit tests. We hope that having a more bespoke setup will
enable us to easily extend it to focus on the details important to us.

Notable changes with this new approach are:

We can now run 'make test' for our mingw windows builds.

We've got rid of all the test-*report* make rules and we're just left
with 'make test'

'make test' now runs each test several times with different driver and
feature combinations checking the result for each run. 'make test' will
then output a concise table of all of the results.

The combinations tested are:
- OpenGL Fixed Function
- OpenGL ARBfp
- OpenGL GLSL
- OpenGL No NPOT texture support
- OpenGLES 2.0
- OpenGLES 2.0 No NPOT texture support

Reviewed-by: Neil Roberts <neil@linux.intel.com>
2012-02-24 14:42:31 +00:00

137 lines
3.9 KiB
C

#include <clutter/clutter.h>
#include <cogl/cogl.h>
#include <string.h>
#include "test-conform-common.h"
static const ClutterColor stage_color = { 0x00, 0x00, 0x00, 0xff };
#define TEX_SIZE 64
typedef struct _TestState
{
unsigned int padding;
} TestState;
/* Creates a texture where the pixels are evenly divided between
selecting just one of the R,G and B components */
static CoglHandle
make_texture (void)
{
guchar *tex_data = g_malloc (TEX_SIZE * TEX_SIZE * 3), *p = tex_data;
CoglHandle tex;
int x, y;
for (y = 0; y < TEX_SIZE; y++)
for (x = 0; x < TEX_SIZE; x++)
{
memset (p, 0, 3);
/* Set one of the components to full. The components should be
evenly represented so that each gets a third of the
texture */
p[(p - tex_data) / (TEX_SIZE * TEX_SIZE * 3 / 3)] = 255;
p += 3;
}
tex = cogl_texture_new_from_data (TEX_SIZE, TEX_SIZE, COGL_TEXTURE_NONE,
COGL_PIXEL_FORMAT_RGB_888,
COGL_PIXEL_FORMAT_ANY,
TEX_SIZE * 3,
tex_data);
g_free (tex_data);
return tex;
}
static void
on_paint (ClutterActor *actor, TestState *state)
{
CoglHandle tex;
CoglHandle material;
guint8 pixels[8];
tex = make_texture ();
material = cogl_material_new ();
cogl_material_set_layer (material, 0, tex);
cogl_handle_unref (tex);
/* Render a 1x1 pixel quad without mipmaps */
cogl_set_source (material);
cogl_material_set_layer_filters (material, 0,
COGL_MATERIAL_FILTER_NEAREST,
COGL_MATERIAL_FILTER_NEAREST);
cogl_rectangle (0, 0, 1, 1);
/* Then with mipmaps */
cogl_material_set_layer_filters (material, 0,
COGL_MATERIAL_FILTER_NEAREST_MIPMAP_NEAREST,
COGL_MATERIAL_FILTER_NEAREST);
cogl_rectangle (1, 0, 2, 1);
cogl_handle_unref (material);
/* Read back the two pixels we rendered */
cogl_read_pixels (0, 0, 2, 1,
COGL_READ_PIXELS_COLOR_BUFFER,
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
pixels);
/* The first pixel should be just one of the colors from the
texture. It doesn't matter which one */
g_assert ((pixels[0] == 255 && pixels[1] == 0 && pixels[2] == 0) ||
(pixels[0] == 0 && pixels[1] == 255 && pixels[2] == 0) ||
(pixels[0] == 0 && pixels[1] == 0 && pixels[2] == 255));
/* The second pixel should be more or less the average of all of the
pixels in the texture. Each component gets a third of the image
so each component should be approximately 255/3 */
g_assert (ABS (pixels[4] - 255 / 3) <= 3 &&
ABS (pixels[5] - 255 / 3) <= 3 &&
ABS (pixels[6] - 255 / 3) <= 3);
/* Comment this out if you want visual feedback for what this test paints */
#if 1
clutter_main_quit ();
#endif
}
static gboolean
queue_redraw (gpointer stage)
{
clutter_actor_queue_redraw (CLUTTER_ACTOR (stage));
return TRUE;
}
void
test_cogl_texture_mipmaps (TestUtilsGTestFixture *fixture,
void *data)
{
TestState state;
ClutterActor *stage;
ClutterActor *group;
unsigned int idle_source;
stage = clutter_stage_get_default ();
clutter_stage_set_color (CLUTTER_STAGE (stage), &stage_color);
group = clutter_group_new ();
clutter_container_add_actor (CLUTTER_CONTAINER (stage), group);
/* 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);
g_signal_connect (group, "paint", G_CALLBACK (on_paint), &state);
clutter_actor_show_all (stage);
clutter_main ();
g_source_remove (idle_source);
if (cogl_test_verbose ())
g_print ("OK\n");
}