271c9d1ae9
This change makes WebGL to use LibGL only in SerenityOS, and the platform's OpenGL driver in Ladybird if it is available. This is implemented by introducing wrapper class between WebGL and OpenGL calls. This way it will also be possible to provide more complete support in Ladybird even if we don't yet have all needed calls implemented in LibGL. For now, the wrapper class makes all GL calls virtual. However, we can get rid of this and implement it at compile time in case of performance problems.
106 lines
3.7 KiB
C++
106 lines
3.7 KiB
C++
/*
|
|
* Copyright (c) 2022, Luke Wilde <lukew@serenityos.org>
|
|
* Copyright (c) 2024, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/RefCountForwarder.h>
|
|
#include <AK/WeakPtr.h>
|
|
#include <AK/Weakable.h>
|
|
#include <LibJS/Heap/GCPtr.h>
|
|
#include <LibWeb/Bindings/PlatformObject.h>
|
|
#include <LibWeb/Forward.h>
|
|
#include <LibWeb/WebGL/OpenGLContext.h>
|
|
#include <LibWeb/WebGL/WebGLContextAttributes.h>
|
|
|
|
namespace Web::WebGL {
|
|
|
|
#define GL_NO_ERROR 0
|
|
|
|
class WebGLRenderingContextBase : public Bindings::PlatformObject {
|
|
WEB_PLATFORM_OBJECT(WebGLRenderingContextBase, Bindings::PlatformObject);
|
|
|
|
public:
|
|
virtual ~WebGLRenderingContextBase();
|
|
|
|
void present();
|
|
|
|
JS::NonnullGCPtr<HTML::HTMLCanvasElement> canvas_for_binding() const;
|
|
|
|
bool is_context_lost() const;
|
|
|
|
Optional<Vector<String>> get_supported_extensions() const;
|
|
JS::Object* get_extension(String const& name) const;
|
|
|
|
void active_texture(GLenum texture);
|
|
|
|
void clear(GLbitfield mask);
|
|
void clear_color(GLclampf red, GLclampf green, GLclampf blue, GLclampf alpha);
|
|
void clear_depth(GLclampf depth);
|
|
void clear_stencil(GLint s);
|
|
void color_mask(GLboolean red, GLboolean green, GLboolean blue, GLboolean alpha);
|
|
|
|
void cull_face(GLenum mode);
|
|
|
|
void depth_func(GLenum func);
|
|
void depth_mask(GLboolean mask);
|
|
void depth_range(GLclampf z_near, GLclampf z_far);
|
|
|
|
void finish();
|
|
void flush();
|
|
|
|
void front_face(GLenum mode);
|
|
|
|
GLenum get_error();
|
|
|
|
void line_width(GLfloat width);
|
|
void polygon_offset(GLfloat factor, GLfloat units);
|
|
|
|
void scissor(GLint x, GLint y, GLsizei width, GLsizei height);
|
|
|
|
void stencil_op(GLenum fail, GLenum zfail, GLenum zpass);
|
|
void stencil_op_separate(GLenum face, GLenum fail, GLenum zfail, GLenum zpass);
|
|
|
|
void viewport(GLint x, GLint y, GLsizei width, GLsizei height);
|
|
|
|
protected:
|
|
WebGLRenderingContextBase(JS::Realm&, HTML::HTMLCanvasElement& canvas_element, NonnullOwnPtr<OpenGLContext> context, WebGLContextAttributes context_creation_parameters, WebGLContextAttributes actual_context_parameters);
|
|
|
|
private:
|
|
virtual void visit_edges(Cell::Visitor&) override;
|
|
|
|
JS::NonnullGCPtr<HTML::HTMLCanvasElement> m_canvas_element;
|
|
|
|
NonnullOwnPtr<OpenGLContext> m_context;
|
|
|
|
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#context-creation-parameters
|
|
// Each WebGLRenderingContext has context creation parameters, set upon creation, in a WebGLContextAttributes object.
|
|
WebGLContextAttributes m_context_creation_parameters {};
|
|
|
|
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#actual-context-parameters
|
|
// Each WebGLRenderingContext has actual context parameters, set each time the drawing buffer is created, in a WebGLContextAttributes object.
|
|
WebGLContextAttributes m_actual_context_parameters {};
|
|
|
|
// https://www.khronos.org/registry/webgl/specs/latest/1.0/#webgl-context-lost-flag
|
|
// Each WebGLRenderingContext has a webgl context lost flag, which is initially unset.
|
|
bool m_context_lost { false };
|
|
|
|
// WebGL presents its drawing buffer to the HTML page compositor immediately before a compositing operation, but only if at least one of the following has occurred since the previous compositing operation:
|
|
// - Context creation
|
|
// - Canvas resize
|
|
// - clear, drawArrays, or drawElements has been called while the drawing buffer is the currently bound framebuffer
|
|
bool m_should_present { true };
|
|
|
|
GLenum m_error { GL_NO_ERROR };
|
|
|
|
HTML::HTMLCanvasElement& canvas_element();
|
|
HTML::HTMLCanvasElement const& canvas_element() const;
|
|
|
|
void needs_to_present();
|
|
void set_error(GLenum error);
|
|
};
|
|
|
|
}
|