CoglTexture *
meta_texture_rectangle_new (unsigned int width,
unsigned int height,
CoglPixelFormat format,
unsigned int rowstride,
const guint8 *data)
{
ClutterBackend *backend =
clutter_get_default_backend ();
CoglContext *context =
clutter_backend_get_cogl_context (backend);
CoglTextureRectangle *tex_rect;
tex_rect = cogl_texture_rectangle_new_with_size (context, width, height);
if (tex_rect == NULL)
return NULL;
if (data)
cogl_texture_set_region (COGL_TEXTURE (tex_rect),
0, 0, /* src_x/y */
0, 0, /* dst_x/y */
width, height, /* dst_width/height */
width, height, /* width/height */
format,
rowstride,
data);
return COGL_TEXTURE (tex_rect);
}
static void
texture_tower_create_texture (MetaTextureTower *tower,
int level,
int width,
int height)
{
if ((!is_power_of_two (width) || !is_power_of_two (height)) &&
meta_texture_rectangle_check (tower->textures[level - 1]))
{
ClutterBackend *backend = clutter_get_default_backend ();
CoglContext *context = clutter_backend_get_cogl_context (backend);
tower->textures[level] = cogl_texture_rectangle_new_with_size (context, width, height);
}
else
{
tower->textures[level] = cogl_texture_new_with_size (width, height,
COGL_TEXTURE_NO_AUTO_MIPMAP,
TEXTURE_FORMAT);
}
tower->invalid[level].x1 = 0;
tower->invalid[level].y1 = 0;
tower->invalid[level].x2 = width;
tower->invalid[level].y2 = height;
}
void
test_texture_no_allocate (void)
{
uint8_t *tex_data;
CoglTexture *texture;
CoglTexture2D *texture_2d;
CoglError *error = NULL;
tex_data = g_malloc (BIG_TEX_WIDTH * BIG_TEX_HEIGHT * 4);
/* NB: if we make the atlas and sliced texture APIs public then this
* could changed to explicitly use that instead of the magic texture
* API */
/* Try to create an atlas texture that is too big so it will
* internally be freed without allocating */
texture =
cogl_atlas_texture_new_from_data (test_ctx,
BIG_TEX_WIDTH,
BIG_TEX_HEIGHT,
/* format */
COGL_PIXEL_FORMAT_RGBA_8888_PRE,
/* rowstride */
BIG_TEX_WIDTH * 4,
tex_data,
&error);
g_free (tex_data);
/* It's ok if this causes an error, we just don't want it to
* crash */
if (texture == NULL)
cogl_error_free (error);
else
cogl_object_unref (texture);
/* Try to create a sliced texture without allocating it */
texture =
cogl_texture_2d_sliced_new_with_size (test_ctx,
BIG_TEX_WIDTH,
BIG_TEX_HEIGHT,
COGL_TEXTURE_MAX_WASTE);
cogl_object_unref (texture);
/* 2D texture */
texture_2d = cogl_texture_2d_new_with_size (test_ctx,
64, 64);
cogl_object_unref (texture_2d);
/* 3D texture */
if (cogl_has_feature (test_ctx, COGL_FEATURE_ID_TEXTURE_3D))
{
CoglTexture3D *texture_3d =
cogl_texture_3d_new_with_size (test_ctx,
64, 64, 64);
cogl_object_unref (texture_3d);
}
/* Rectangle texture */
if (cogl_has_feature (test_ctx, COGL_FEATURE_ID_TEXTURE_RECTANGLE))
{
CoglTextureRectangle *texture_rect =
cogl_texture_rectangle_new_with_size (test_ctx,
64, 64);
cogl_object_unref (texture_rect);
}
}
