static CoglClipStack *
_cogl_clip_stack_push_from_path (CoglClipStack *stack,
CoglPath *path,
CoglMatrixEntry *modelview_entry,
CoglMatrixEntry *projection_entry,
const float *viewport)
{
float x_1, y_1, x_2, y_2;
_cogl_path_get_bounds (path, &x_1, &y_1, &x_2, &y_2);
/* If the path is a simple rectangle then we can divert to pushing a
rectangle clip instead which usually won't involve the stencil
buffer */
if (_cogl_path_is_rectangle (path))
return _cogl_clip_stack_push_rectangle (stack,
x_1, y_1,
x_2, y_2,
modelview_entry,
projection_entry,
viewport);
else
{
CoglPrimitive *primitive = _cogl_path_get_fill_primitive (path);
return _cogl_clip_stack_push_primitive (stack,
primitive,
x_1, y_1, x_2, y_2,
modelview_entry,
projection_entry,
viewport);
}
}
CoglClipStack *
_cogl_clip_stack_push_from_path (CoglClipStack *stack,
CoglPath *path,
CoglMatrixEntry *modelview_entry,
CoglMatrixEntry *projection_entry,
const float *viewport)
{
float x_1, y_1, x_2, y_2;
_cogl_path_get_bounds (path, &x_1, &y_1, &x_2, &y_2);
/* If the path is a simple rectangle then we can divert to pushing a
rectangle clip instead which usually won't involve the stencil
buffer */
if (_cogl_path_is_rectangle (path))
return _cogl_clip_stack_push_rectangle (stack,
x_1, y_1,
x_2, y_2,
modelview_entry,
projection_entry,
viewport);
else
{
CoglClipStackPath *entry;
CoglMatrix modelview;
CoglMatrix projection;
float transformed_corners[8];
entry = _cogl_clip_stack_push_entry (stack,
sizeof (CoglClipStackPath),
COGL_CLIP_STACK_PATH);
entry->path = cogl_path_copy (path);
entry->matrix_entry = _cogl_matrix_entry_ref (modelview_entry);
_cogl_matrix_entry_get (modelview_entry, &modelview);
_cogl_matrix_entry_get (projection_entry, &projection);
get_transformed_corners (x_1, y_1, x_2, y_2,
&modelview,
&projection,
viewport,
transformed_corners);
_cogl_clip_stack_entry_set_bounds ((CoglClipStack *) entry,
transformed_corners);
return (CoglClipStack *) entry;
}
}
void
_cogl_path_fill_nodes (CoglPath *path,
CoglFramebuffer *framebuffer,
CoglPipeline *pipeline,
CoglDrawFlags flags)
{
if (path->data->path_nodes->len == 0)
return;
/* If the path is a simple rectangle then we can divert to using
cogl_framebuffer_draw_rectangle which should be faster because it
can go through the journal instead of uploading the geometry just
for two triangles */
if (path->data->is_rectangle && flags == 0)
{
float x_1, y_1, x_2, y_2;
_cogl_path_get_bounds (path, &x_1, &y_1, &x_2, &y_2);
cogl_framebuffer_draw_rectangle (framebuffer,
pipeline,
x_1, y_1,
x_2, y_2);
}
else
{
CoglBool needs_fallback = FALSE;
CoglPrimitive *primitive;
_cogl_pipeline_foreach_layer_internal (pipeline,
validate_layer_cb,
&needs_fallback);
if (needs_fallback)
{
_cogl_path_fill_nodes_with_clipped_rectangle (path,
framebuffer,
pipeline);
return;
}
primitive = _cogl_path_get_fill_primitive (path);
_cogl_primitive_draw (primitive,
framebuffer,
pipeline,
flags);
}
}
void
cogl2_path_fill (CoglPath *path)
{
_COGL_RETURN_IF_FAIL (cogl_is_path (path));
if (path->data->path_nodes->len == 0)
return;
/* If the path is a simple rectangle then we can divert to using
cogl_rectangle which should be faster because it can go through
the journal instead of uploading the geometry just for two
triangles */
if (path->data->is_rectangle)
{
float x_1, y_1, x_2, y_2;
_cogl_path_get_bounds (path, &x_1, &y_1, &x_2, &y_2);
cogl_rectangle (x_1, y_1, x_2, y_2);
}
else
_cogl_path_fill_nodes (path, 0);
}
