Plane类 参考

#include <plane.h>

类 Plane 继承关系图:

Plane 的协作图:

Public 成员函数
	Plane (const std::shared_ptr< Texture > &t=NullTextureObj)
virtual	~Plane (void)
void	set_texture (const std::shared_ptr< Texture > &t)
GLenum	GetPrimitiveType (void) const override
GLsizei	texWidth (void) const
GLsizei	texHeight (void) const
Public 成员函数 继承自 RenderableObject
	RenderableObject (int vertex_count=1, int vertex_element_count=3, const std::shared_ptr< QOpenGLShaderProgram > &shaderProgram=NullRenderableObj)
virtual	~RenderableObject (void)
virtual void	SetupExtraUniforms (void)
bool	is_renderable (void) const
void	set_is_renderable (bool b)
int	vertex_count (void) const
void	set_vertex_count (int vertexCount)
int	vertex_element_count (void) const
void	set_vertex_element_count (int vertexElementCount)
int	VertexBufferSize (void) const
void	set_shader_program (const std::shared_ptr< QOpenGLShaderProgram > &shaderProgram)
bool	haveShaderProgram (void)
bool	Init (std::shared_ptr< QOpenGLShaderProgram > &shaderProgram=NullRenderableObj)
void	Destroy (void)
void	Render (const QMatrix4x4 *mvp=nullptr)

静态 Public 属性
static std::shared_ptr< Texture >	NullTextureObj
静态 Public 属性 继承自 RenderableObject
static std::shared_ptr< QOpenGLShaderProgram >	NullRenderableObj

Protected 成员函数
bool	FillVertexBuffer (GLfloat *pBuffer) override
void	Draw (void) override
void	SetupAllAttrPointer (void) override

额外继承的成员函数
静态 Public 成员函数 继承自 RenderableObject
static std::shared_ptr< QOpenGLShaderProgram >	CreateShaderProgram (const QString &vertexShaderFileName, const QString &fragShaderFileName)
Protected 属性 继承自 RenderableObject
bool	is_init_
bool	is_renderable_
int	vertex_count_
int	vertex_element_count_
std::shared_ptr< QOpenGLShaderProgram >	shader_program_
QOpenGLVertexArrayObject	vao_
QOpenGLBuffer	vbo_

详细描述

在文件 plane.h 第 24 行定义.

构造及析构函数说明

Plane()

Plane::Plane ( const std::shared_ptr< Texture > &  t = NullTextureObj )

explicit

在文件 plane.cc 第 21 行定义.

    : RenderableObject(4, 4), texture_id_(0), texture_(t) {}

~Plane()

virtual Plane::~Plane ( void  )

inlinevirtual

在文件 plane.h 第 38 行定义.

{ texture_.reset(); }

成员函数说明

Draw()

void Plane::Draw ( void  )

overrideprotectedvirtual

重载 RenderableObject .

在文件 plane.cc 第 77 行定义.

                     {
  if (texture_->data()) {
    if (texture_->isSizeChanged()) {
      glGenTextures(1, &texture_id_);
 
      glBindTexture(GL_TEXTURE_2D, texture_id_);
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
      glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
 
      glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, texture_->width(),
                   texture_->height(), 0, texture_->texture_format(),
                   GL_UNSIGNED_BYTE, texture_->data());
 
      glBindTexture(GL_TEXTURE_2D, 0);
 
      texture_->removeDirty();
    } else if (texture_->isDirty()) {
      glBindTexture(GL_TEXTURE_2D, texture_id_);
      glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, texture_->width(),
                      texture_->height(), texture_->texture_format(),
                      GL_UNSIGNED_BYTE, texture_->data());
      glBindTexture(GL_TEXTURE_2D, 0);
      texture_->removeDirty();
    }
  }
 
  glActiveTexture(GL_TEXTURE0);
  glBindTexture(GL_TEXTURE_2D, texture_id_);
  RenderableObject::Draw();
  glBindTexture(GL_TEXTURE_2D, 0);
}

FillVertexBuffer()

bool Plane::FillVertexBuffer ( GLfloat *  pBuffer )

overrideprotectedvirtual

实现了 RenderableObject.

在文件 plane.cc 第 24 行定义.

                                             {
  if (texture_ == nullptr || !texture_->isDirty()) {
    return false;
  }
  glGenTextures(1, &texture_id_);
 
  glBindTexture(GL_TEXTURE_2D, texture_id_);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
  glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
 
  glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8, texture_->width(),
               texture_->height(), 0, texture_->texture_format(),
               GL_UNSIGNED_BYTE, texture_->data());
 
  glBindTexture(GL_TEXTURE_2D, 0);
 
  texture_->removeDirty();
 
  pBuffer[0] = -1.0f;
  pBuffer[1] = -1.0f;
  pBuffer[2] = 0.0f;
  pBuffer[3] = 0.0f;
  pBuffer[4] = 1.0f;
  pBuffer[5] = -1.0f;
  pBuffer[6] = 1.0f;
  pBuffer[7] = 0.0f;
  pBuffer[8] = 1.0f;
  pBuffer[9] = 1.0f;
  pBuffer[10] = 1.0f;
  pBuffer[11] = 1.0f;
  pBuffer[12] = -1.0f;
  pBuffer[13] = 1.0f;
  pBuffer[14] = 0.0f;
  pBuffer[15] = 1.0f;
 
  return true;
}

GetPrimitiveType()

GLenum Plane::GetPrimitiveType ( void  ) const

inlineoverridevirtual

实现了 RenderableObject.

在文件 plane.h 第 46 行定义.

{ return GL_QUADS; }

set_texture()

void Plane::set_texture ( const std::shared_ptr< Texture > &  t )

inline

在文件 plane.h 第 40 行定义.

                                                    {
    if (t != texture_) {
      texture_ = t;
    }
  }

SetupAllAttrPointer()

void Plane::SetupAllAttrPointer ( void  )

overrideprotectedvirtual

重载 RenderableObject .

在文件 plane.cc 第 64 行定义.

                                    {
  glEnableVertexAttribArray(0);
  glVertexAttribPointer(
      0, 2, GL_FLOAT, GL_FALSE,
      static_cast<int>(sizeof(GLfloat)) * vertex_element_count(), 0);
 
  glEnableVertexAttribArray(1);
  glVertexAttribPointer(
      1, 2, GL_FLOAT, GL_FALSE,
      static_cast<int>(sizeof(GLfloat)) * vertex_element_count(),
      reinterpret_cast<void*>(sizeof(GLfloat) * 2));
}

texHeight()

GLsizei Plane::texHeight ( void  ) const

inline

在文件 plane.h 第 48 行定义.

{ return texture_->height(); }

texWidth()

GLsizei Plane::texWidth ( void  ) const

inline

在文件 plane.h 第 47 行定义.

{ return texture_->width(); }

类成员变量说明

NullTextureObj

std::shared_ptr< Texture > Plane::NullTextureObj

static

在文件 plane.h 第 35 行定义.

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该类的文档由以下文件生成:

• modules/tools/visualizer/plane.h
• modules/tools/visualizer/plane.cc