mutter/tests/interactive/test-cogl-tex-getset.c
Emmanuele Bassi 71498a6376 [cogl] Remove max_waste argument from Texture ctors
The CoglTexture constructors expose the "max-waste" argument for
controlling the maximum amount of wasted areas for slicing or,
if set to -1, disables slicing.

Slicing is really relevant only for large images that are never
repeated, so it's a useful feature only in controlled use cases.
Specifying the amount of wasted area is, on the other hand, just
a way to mess up this feature; 99% the times, you either pull this
number out of thin air, hoping it's right, or you try to do the
right thing and you choose the wrong number anyway.

Instead, we can use the CoglTextureFlags to control whether the
texture should not be sliced (useful for Clutter-GST and for the
texture-from-pixmap actors) and provide a reasonable value for
enabling the slicing ourself. At some point, we might even
provide a way to change the default at compile time or at run time,
for particular platforms.

Since max_waste is gone, the :tile-waste property of ClutterTexture
becomes read-only, and it proxies the cogl_texture_get_max_waste()
function.

Inside Clutter, the only cases where the max_waste argument was
not set to -1 are in the Pango glyph cache (which is a POT texture
anyway) and inside the test cases where we want to force slicing;
for the latter we can create larger textures that will be bigger than
the threshold we set.

Signed-off-by: Emmanuele Bassi <ebassi@linux.intel.com>
Signed-off-by: Robert Bragg <robert@linux.intel.com>
Signed-off-by: Neil Roberts <neil@linux.intel.com>
2009-05-23 19:35:19 +01:00

262 lines
6.2 KiB
C

#include <config.h>
#include <glib.h>
#include <gmodule.h>
#include <stdlib.h>
#include <clutter/clutter.h>
#include <cogl/cogl.h>
/* Coglbox declaration
*--------------------------------------------------*/
G_BEGIN_DECLS
#define TEST_TYPE_COGLBOX test_coglbox_get_type()
#define TEST_COGLBOX(obj) \
(G_TYPE_CHECK_INSTANCE_CAST ((obj), \
TEST_TYPE_COGLBOX, TestCoglboxClass))
#define TEST_COGLBOX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST ((klass), \
TEST_TYPE_COGLBOX, TestCoglboxClass))
#define TEST_IS_COGLBOX(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
TEST_TYPE_COGLBOX))
#define TEST_IS_COGLBOX_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE ((klass), \
TEST_TYPE_COGLBOX))
#define TEST_COGLBOX_GET_CLASS(obj) \
(G_TYPE_INSTANCE_GET_CLASS ((obj), \
TEST_TYPE_COGLBOX, TestCoglboxClass))
typedef struct _TestCoglbox TestCoglbox;
typedef struct _TestCoglboxClass TestCoglboxClass;
typedef struct _TestCoglboxPrivate TestCoglboxPrivate;
struct _TestCoglbox
{
ClutterActor parent;
/*< private >*/
TestCoglboxPrivate *priv;
};
struct _TestCoglboxClass
{
ClutterActorClass parent_class;
/* padding for future expansion */
void (*_test_coglbox1) (void);
void (*_test_coglbox2) (void);
void (*_test_coglbox3) (void);
void (*_test_coglbox4) (void);
};
static GType test_coglbox_get_type (void) G_GNUC_CONST;
G_END_DECLS
/* Coglbox private declaration
*--------------------------------------------------*/
G_DEFINE_TYPE (TestCoglbox, test_coglbox, CLUTTER_TYPE_ACTOR);
#define TEST_COGLBOX_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE ((obj), TEST_TYPE_COGLBOX, TestCoglboxPrivate))
struct _TestCoglboxPrivate
{
CoglHandle cogl_tex_id[4];
};
/* Coglbox implementation
*--------------------------------------------------*/
static void
test_coglbox_paint(ClutterActor *self)
{
TestCoglboxPrivate *priv = TEST_COGLBOX_GET_PRIVATE (self);
gfloat texcoords[4] = { 0.0f, 0.0f, 1.0f, 1.0f };
priv = TEST_COGLBOX_GET_PRIVATE (self);
cogl_set_source_color4ub (0x66, 0x66, 0xdd, 0xff);
cogl_rectangle (0, 0, 400, 400);
cogl_push_matrix ();
cogl_translate (100, 100, 0);
cogl_set_source_texture (priv->cogl_tex_id[1]);
cogl_rectangle_with_texture_coords (0, 0, 200, 213,
texcoords[0], texcoords[1],
texcoords[2], texcoords[3]);
cogl_pop_matrix();
}
static void
test_coglbox_finalize (GObject *object)
{
G_OBJECT_CLASS (test_coglbox_parent_class)->finalize (object);
}
static void
test_coglbox_dispose (GObject *object)
{
TestCoglboxPrivate *priv;
priv = TEST_COGLBOX_GET_PRIVATE (object);
cogl_handle_unref (priv->cogl_tex_id);
G_OBJECT_CLASS (test_coglbox_parent_class)->dispose (object);
}
static void
test_coglbox_init (TestCoglbox *self)
{
TestCoglboxPrivate *priv;
guint width;
guint height;
guint rowstride;
CoglPixelFormat format;
gint size;
guchar *data;
gint x,y,t;
guchar *pixel;
self->priv = priv = TEST_COGLBOX_GET_PRIVATE(self);
/* Load image from file */
priv->cogl_tex_id[0] =
cogl_texture_new_from_file ("redhand.png",
COGL_TEXTURE_NONE,
COGL_PIXEL_FORMAT_ANY, NULL);
if (priv->cogl_tex_id[0] == COGL_INVALID_HANDLE)
{
printf ("Failed loading redhand.png image!\n");
return;
}
printf("Texture loaded from file.\n");
/* Obtain pixel data */
format = cogl_texture_get_format (priv->cogl_tex_id[0]);
g_assert(format == COGL_PIXEL_FORMAT_RGBA_8888 ||
format == COGL_PIXEL_FORMAT_ARGB_8888);
width = cogl_texture_get_width (priv->cogl_tex_id[0]);
height = cogl_texture_get_height (priv->cogl_tex_id[0]);
size = cogl_texture_get_data (priv->cogl_tex_id[0],
format, 0, NULL);
printf("size: %dx%d\n", width, height);
printf("format: 0x%x\n", format);
printf("bytesize: %d\n", size);
data = (guchar*) g_malloc (sizeof(guchar) * size);
cogl_texture_get_data (priv->cogl_tex_id[0],
format, 0, data);
rowstride = cogl_texture_get_rowstride (priv->cogl_tex_id[0]);
/* Create new texture from modified data */
priv->cogl_tex_id[1] =
cogl_texture_new_from_data (width, height,
COGL_TEXTURE_NONE,
format, format,
rowstride, data);
if (priv->cogl_tex_id[1] == COGL_INVALID_HANDLE)
{
printf ("Failed creating image from data!\n");
return;
}
printf ("Texture created from data.\n");
/* Modify data (swap red and green) */
for (y=0; y<height; ++y)
{
for (x=0; x<width; ++x)
{
pixel = data + y * rowstride + x * 4;
if (format == COGL_PIXEL_FORMAT_RGBA_8888)
{
t = pixel[0];
pixel[0] = pixel[1];
pixel[1] = t;
}
else
{
t = pixel[1];
pixel[1] = pixel[2];
pixel[2] = t;
}
}
}
cogl_texture_set_region (priv->cogl_tex_id[1],
0, 0, 0, 0,
100, 100, width, height,
format, 0, data);
cogl_texture_set_region (priv->cogl_tex_id[1],
100, 100, 100, 100,
100, 100, width, height,
format, 0, data);
printf ("Subregion data updated.\n");
}
static void
test_coglbox_class_init (TestCoglboxClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
ClutterActorClass *actor_class = CLUTTER_ACTOR_CLASS (klass);
gobject_class->finalize = test_coglbox_finalize;
gobject_class->dispose = test_coglbox_dispose;
actor_class->paint = test_coglbox_paint;
g_type_class_add_private (gobject_class, sizeof (TestCoglboxPrivate));
}
static ClutterActor*
test_coglbox_new (void)
{
return g_object_new (TEST_TYPE_COGLBOX, NULL);
}
G_MODULE_EXPORT int
test_cogl_tex_getset_main (int argc, char *argv[])
{
ClutterActor *stage;
ClutterActor *coglbox;
clutter_init(&argc, &argv);
/* Stage */
stage = clutter_stage_get_default ();
clutter_actor_set_size (stage, 400, 400);
clutter_stage_set_title (CLUTTER_STAGE (stage), "Cogl Test");
/* Cogl Box */
coglbox = test_coglbox_new ();
clutter_container_add_actor (CLUTTER_CONTAINER (stage), coglbox);
clutter_actor_show_all (stage);
clutter_main ();
return 0;
}