WebGLVertexArrayObjectBase.h [plain text]
#pragma once
#if ENABLE(WEBGL)
#include "GraphicsContextGLOpenGL.h"
#include "WebGLBuffer.h"
#include "WebGLContextObject.h"
namespace JSC {
class SlotVisitor;
}
namespace WTF {
class AbstractLocker;
}
namespace WebCore {
class WebGLVertexArrayObjectBase : public WebGLContextObject {
public:
enum class Type { Default, User };
struct VertexAttribState {
bool isBound() const { return bufferBinding && bufferBinding->object(); }
bool validateBinding() const { return !enabled || isBound(); }
bool enabled { false };
RefPtr<WebGLBuffer> bufferBinding;
GCGLsizei bytesPerElement { 0 };
GCGLint size { 4 };
GCGLenum type { GraphicsContextGL::FLOAT };
bool normalized { false };
GCGLsizei stride { 16 };
GCGLsizei originalStride { 0 };
GCGLintptr offset { 0 };
GCGLuint divisor { 0 };
};
bool isDefaultObject() const { return m_type == Type::Default; }
bool hasEverBeenBound() const { return object() && m_hasEverBeenBound; }
void setHasEverBeenBound() { m_hasEverBeenBound = true; }
WebGLBuffer* getElementArrayBuffer() const { return m_boundElementArrayBuffer.get(); }
void setElementArrayBuffer(const WTF::AbstractLocker&, WebGLBuffer*);
VertexAttribState& getVertexAttribState(int index) { return m_vertexAttribState[index]; }
void setVertexAttribState(const WTF::AbstractLocker&, GCGLuint, GCGLsizei, GCGLint, GCGLenum, GCGLboolean, GCGLsizei, GCGLintptr, WebGLBuffer*);
void unbindBuffer(const WTF::AbstractLocker&, WebGLBuffer&);
void setVertexAttribDivisor(GCGLuint index, GCGLuint divisor);
void addMembersToOpaqueRoots(const WTF::AbstractLocker&, JSC::SlotVisitor&);
protected:
WebGLVertexArrayObjectBase(WebGLRenderingContextBase&, Type);
void deleteObjectImpl(const WTF::AbstractLocker&, GraphicsContextGLOpenGL*, PlatformGLObject) override = 0;
Type m_type;
bool m_hasEverBeenBound { false };
RefPtr<WebGLBuffer> m_boundElementArrayBuffer;
Vector<VertexAttribState> m_vertexAttribState;
};
}
#endif