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#pragma once
#ifndef DOXYGEN_GENERATING_OUTPUT
#define NCINE_INCLUDE_OPENGL
#include "../../CommonHeaders.h"
#endif
#include <memory>
#include <Containers/SmallVector.h>
using namespace Death::Containers;
namespace nCine
{
class GLRenderbuffer;
class GLTexture;
/// Handles OpenGL framebuffer objects
class GLFramebuffer
{
friend class Qt5GfxDevice;
public:
static const std::uint32_t MaxDrawbuffers = 8;
static const std::uint32_t MaxRenderbuffers = 4;
explicit GLFramebuffer();
~GLFramebuffer();
GLFramebuffer(const GLFramebuffer&) = delete;
GLFramebuffer& operator=(const GLFramebuffer&) = delete;
inline GLuint GetGLHandle() const {
return glHandle_;
}
bool Bind() const;
static bool Unbind();
bool Bind(GLenum target) const;
static bool Unbind(GLenum target);
inline std::uint32_t GetDrawbufferCount() const { return numDrawBuffers_; }
bool DrawBuffers(std::uint32_t numDrawBuffers);
inline std::uint32_t GetRenderbufferCount() const { return std::uint32_t(attachedRenderbuffers_.size()); }
bool AttachRenderbuffer(const char *label, GLenum internalFormat, GLsizei width, GLsizei height, GLenum attachment);
bool AttachRenderbuffer(GLenum internalFormat, GLsizei width, GLsizei height, GLenum attachment);
bool DetachRenderbuffer(GLenum internalFormat);
void AttachTexture(GLTexture& texture, GLenum attachment);
void DetachTexture(GLenum attachment);
#if !(defined(DEATH_TARGET_APPLE) && defined(DEATH_TARGET_ARM))
void Invalidate(GLsizei numAttachments, const GLenum* attachments);
#endif
bool IsStatusComplete();
void SetObjectLabel(StringView label);
private:
static std::uint32_t readBoundBuffer_;
static std::uint32_t drawBoundBuffer_;
std::uint32_t numDrawBuffers_;
SmallVector<std::unique_ptr<GLRenderbuffer>, MaxRenderbuffers> attachedRenderbuffers_;
GLuint glHandle_;
static bool BindHandle(GLenum target, GLuint glHandle);
static GLuint GetBoundHandle(GLenum target);
static void SetBoundHandle(GLenum target, GLuint glHandle);
};
}
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