chromium/components/viz/common/quads/draw_quad.h

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifdef UNSAFE_BUFFERS_BUILD
// TODO(crbug.com/40285824): Remove this and convert code to safer constructs.
#pragma allow_unsafe_buffers
#endif

#ifndef COMPONENTS_VIZ_COMMON_QUADS_DRAW_QUAD_H_
#define COMPONENTS_VIZ_COMMON_QUADS_DRAW_QUAD_H_

#include <stddef.h>

#include "base/functional/callback.h"
#include "base/memory/raw_ptr_exclusion.h"
#include "components/viz/common/quads/shared_quad_state.h"
#include "components/viz/common/resources/resource_id.h"
#include "components/viz/common/viz_common_export.h"

namespace base {
namespace trace_event {
class TracedValue;
}
}  // namespace base

namespace viz {

// DrawQuad is a bag of data used for drawing a quad. Because different
// materials need different bits of per-quad data to render, classes that derive
// from DrawQuad store additional data in their derived instance. The Material
// enum is used to "safely" downcast to the derived class.
// Note: quads contain rects and sizes, which live in different spaces. There is
// the "content space", which is the arbitrary space in which the quad's
// geometry is defined (generally related to the layer that produced the quad,
// e.g. the geometry space for PictureLayerImpls or the layer's coordinate space
// for most other layers). There is also the "target space", which is the space,
// in "physical" pixels, of the render target where the quads is drawn. The
// quad's transform maps the content space to the target space.
class VIZ_COMMON_EXPORT DrawQuad { … };

}  // namespace viz

#endif  // COMPONENTS_VIZ_COMMON_QUADS_DRAW_QUAD_H_