#include <ember_core.h>

Inheritance diagram for Renderer:

Public Member Functions
virtual	~Renderer ()=default

	Renderer ()=default

virtual Shader *	GetDefaultShader ()=0

virtual Shader *	GetTextShader ()=0

virtual void	Initialize ()=0

virtual void	Flush ()=0

virtual void	FlushText ()=0

virtual Texture	LoadTexture (const std::string &file_path)=0
	Load a texture on `GPU` given a file path. More...

virtual Font	LoadFont (const std::string &file_path, int font_size)=0
	Load a `TTF` font on `GPU` given a file path. More...

virtual void	UnloadFont (const Font &font)=0
	Unload the Font from CPU/GPU (cleanup) More...

virtual void	UnloadTexture (const Texture &texture)=0
	Unload the Texture from GPU (cleanup) More...

virtual void	ClearBackground (const Color &color)=0
	Window background color. More...

virtual void	BeginDrawing (const glm::mat4 &view_projection=0)=0
	Starting of the drawing procedure. More...

virtual void	EndDrawing ()=0
	End of the drawing procedure (swap buffers) More...

virtual void	DrawText (const Font &font, const std::string &text, const Transform2D &transform, Color color, float font_size, const ShaderEffect &shader_effect={}, float kerning=0.0f)=0
	Draw glyphs given a Loaded Font and text. More...

virtual void	DrawTexture (const Texture &texture, const Transform2D &transform, glm::vec2 size, const Color &color={255, 255, 255, 255})=0
	Draw Texture quad at given Rectangle source. More...

virtual void	DrawTextureEx (const Texture &texture, const ember::Rectangle &source, const ember::Rectangle &dest, glm::vec2 origin, float rotation, float zIndex=0.0f, const Color &color={255, 255, 255, 255})=0
	Draw Texture quad extended. More...

virtual void	DrawLine (glm::vec3 start, glm::vec3 end, const Color &color, float thickness=1.0f)=0
	Draw Lines between two points. More...

virtual void	DrawTriangleFilled (glm::vec3 p0, glm::vec3 p1, glm::vec3 p2, const Color &color)=0

virtual void	DrawTriangle (glm::vec3 p0, glm::vec3 p1, glm::vec3 p2, const Color &color)=0

virtual void	DrawCircle (glm::vec3 position, float radius, const Color &color, int segments=32)=0

virtual void	DrawCircleFilled (glm::vec3 position, float radius, const Color &color, int segments=32)=0

virtual void	DrawRect (const Transform2D &transform, glm::vec2 size, const Color &color, float thickness=1.f)=0
	Draw rectangle. More...

virtual void	DrawRectFilled (const Transform2D &transform, glm::vec2 size, const Color &color, float thickness=1.f)=0
	Draw rectangle filled. More...

virtual void	BeginMode2D (const Camera2D &camera)=0
	Begin 2D mode. More...

virtual void	EndMode2D ()=0
	End 2D mode. More...

virtual void	BeginCanvas ()=0
	Begin Canvas Procedure. More...

virtual void	EndCanvas ()=0
	End Canvas Procedure. More...

virtual void	Resize (int view_width, int view_height)=0

virtual void	SetContext (const void *ctx)=0

virtual void *	GetContext ()=0

virtual void	Destroy ()=0

Public Attributes
SDL_Window *	window = nullptr

int	viewport [2] = {480, 270}

RendererType	type = OPENGL

Detailed Description

Renderer struct.

Version: 0.0.1

Constructor & Destructor Documentation

◆ ~Renderer()

virtual Renderer::~Renderer ( )

virtualdefault

◆ Renderer()

Renderer::Renderer ( )

default

Member Function Documentation

◆ BeginCanvas()

virtual void Renderer::BeginCanvas ( )

pure virtual

Begin Canvas Procedure.

Used for Draw Static UI

Version: 0.0.7

Returns: void

Implemented in OpenglRenderer.

◆ BeginDrawing()

virtual void Renderer::BeginDrawing ( const glm::mat4 & view_projection = 0 )

pure virtual

Starting of the drawing procedure.

Clear the background and start drawing
Draw between

  * * * *

  *

BeginDrawing and EndDrawing
- Orthographic projection
- Ordered rendering

  * Usage:



  * * BeginDrawing();

* * // Draw anything without needing a camera

EndDrawing();

  * @version
  0.0.1


  * @return void

Implemented in OpenglRenderer.

◆ BeginMode2D()

virtual void Renderer::BeginMode2D ( const Camera2D & camera )

pure virtual

Begin 2D mode.

Set up the Camera2D component

Usage: BeginMode2D(camera);

Drawing



* * *
with

* the camera view_matrix

EndMode2D();

Version: 0.0.2

Parameters

camera the camera 2D

(view_matrix)

Returns

* void

Implemented in OpenglRenderer.

◆ ClearBackground()

virtual void Renderer::ClearBackground ( const Color & color )

pure virtual

Window background color.

Version: 0.0.1

Parameters

color Color in RGBA

Returns: void

Implemented in OpenglRenderer.

◆ Destroy()

virtual void Renderer::Destroy ( )

pure virtual

Implemented in OpenglRenderer.

◆ DrawCircle()

virtual void Renderer::DrawCircle	(	glm::vec3	position,
		float	radius,
		const Color &	color,
		int	segments = `32`
	)

pure virtual

Implemented in OpenglRenderer.

◆ DrawCircleFilled()

virtual void Renderer::DrawCircleFilled	(	glm::vec3	position,
		float	radius,
		const Color &	color,
		int	segments = `32`
	)

pure virtual

Implemented in OpenglRenderer.

◆ DrawLine()

virtual void Renderer::DrawLine	(	glm::vec3	start,
		glm::vec3	end,
		const Color &	color,
		float	thickness = `1.0f`
	)

pure virtual

Draw Lines between two points.

Version: 0.0.1

Parameters

start	vec2 start point
end	* vec2 * end

point
Parameters

Vec2 start

Vec2 end

color Color in RGBA

thickness float Line thickness
```
@return
void
```

Implemented in OpenglRenderer.

◆ DrawRect()

virtual void Renderer::DrawRect	(	const Transform2D &	transform,
		glm::vec2	size,
		const Color &	color,
		float	thickness = `1.f`
	)

pure virtual

Draw rectangle.

Parameters

transform
size	rectangle size
color	Color in RGBA
thickness

* * *

* float

* Line thickness
Returns
void

Version
0.0.6

Implemented in OpenglRenderer.

◆ DrawRectFilled()

virtual void Renderer::DrawRectFilled	(	const Transform2D &	transform,
		glm::vec2	size,
		const Color &	color,
		float	thickness = `1.f`
	)

pure virtual

Draw rectangle filled.

Parameters

transform
size	rectangle size
color	Color in RGBA
thickness

Returns

* *


* * void

*
Version
0.0.6

Implemented in OpenglRenderer.

◆ DrawText()

virtual void Renderer::DrawText	(	const Font &	font,
		const std::string &	text,
		const Transform2D &	transform,
		Color	color,
		float	font_size,
		const ShaderEffect &	shader_effect = `{}`,
		float	kerning = `0.0f`
	)

pure virtual

Draw glyphs given a Loaded Font and text.

Draw the text

See also: Font; Glyph

  @version



  * * *

* 0.0.1
Parameters

font The loaded Font TTF

text The text to draw, can be dynamic

transform

transform

Implemented in OpenglRenderer.

◆ DrawTexture()

virtual void Renderer::DrawTexture	(	const Texture &	texture,
		const Transform2D &	transform,
		glm::vec2	size,
		const Color &	color = `{255, 255, 255, 255}`
	)

pure virtual

Draw Texture quad at given Rectangle source.

Draw the texture

Version: 0.0.1

Parameters

Implemented in OpenglRenderer.

◆ DrawTextureEx()

virtual void Renderer::DrawTextureEx	(	const Texture &	texture,
		const ember::Rectangle &	source,
		const ember::Rectangle &	dest,
		glm::vec2	origin,
		float	rotation,
		float	zIndex = `0.0f`,
		const Color &	color = `{255, 255, 255, 255}`
	)

pure virtual

Draw Texture quad extended.

Draw the texture with extended parameters, ex: spritesheet's

*




* * * * @version

* 0.0.1
Parameters

texture The loaded Texture

rect The source Rectangle

Implemented in OpenglRenderer.

◆ DrawTriangle()

virtual void Renderer::DrawTriangle	(	glm::vec3	p0,
		glm::vec3	p1,
		glm::vec3	p2,
		const Color &	color
	)

pure virtual

Implemented in OpenglRenderer.

◆ DrawTriangleFilled()

virtual void Renderer::DrawTriangleFilled	(	glm::vec3	p0,
		glm::vec3	p1,
		glm::vec3	p2,
		const Color &	color
	)

pure virtual

Implemented in OpenglRenderer.

◆ EndCanvas()

virtual void Renderer::EndCanvas ( )

pure virtual

End Canvas Procedure.

Restore GL state

See also: BeginCanvas

Version: 0.0.7

Returns

* *
void

Implemented in OpenglRenderer.

◆ EndDrawing()

virtual void Renderer::EndDrawing ( )

pure virtual

End of the drawing procedure (swap buffers)

Version: 0.0.1

Returns: void

Implemented in OpenglRenderer.

◆ EndMode2D()

virtual void Renderer::EndMode2D ( )

pure virtual

End 2D mode.

Restore the default view_matrix

Version: 0.0.2

Returns: void

Implemented in OpenglRenderer.

◆ Flush()

virtual void Renderer::Flush ( )

pure virtual

Implemented in OpenglRenderer.

◆ FlushText()

virtual void Renderer::FlushText ( )

pure virtual

Implemented in OpenglRenderer.

◆ GetContext()

virtual void* Renderer::GetContext ( )

pure virtual

Implemented in OpenglRenderer.

◆ GetDefaultShader()

virtual Shader* Renderer::GetDefaultShader ( )

pure virtual

Implemented in OpenglRenderer.

◆ GetTextShader()

virtual Shader* Renderer::GetTextShader ( )

pure virtual

Implemented in OpenglRenderer.

◆ Initialize()

virtual void Renderer::Initialize ( )

pure virtual

Implemented in OpenglRenderer.

◆ LoadFont()

virtual Font Renderer::LoadFont	(	const std::string &	file_path,
		int	font_size
	)

pure virtual

Load a TTF font on GPU given a file path.

Bake the font on GPU

Version: 0.0.1

* * * @param

* file_path the path to the file in assets folder
Returns
Font

Implemented in OpenglRenderer.

◆ LoadTexture()

virtual Texture Renderer::LoadTexture ( const std::string & file_path )

pure virtual

Load a texture on GPU given a file path.

Create a texture on GPU
See also
Texture
```
* * @version


* *
```
0.0.1
Parameters

file_path the path to the file in assets folder

Returns
```
* * Texture
```

Implemented in OpenglRenderer.

◆ Resize()

virtual void Renderer::Resize	(	int	view_width,
		int	view_height
	)

pure virtual

Implemented in OpenglRenderer.

◆ SetContext()

virtual void Renderer::SetContext ( const void * ctx )

pure virtual

Implemented in OpenglRenderer.

◆ UnloadFont()

virtual void Renderer::UnloadFont ( const Font & font )

pure virtual

Unload the Font from CPU/GPU (cleanup)

Version: 0.0.9

Parameters

font	The loaded Font @return * * * * void

Implemented in OpenglRenderer.

◆ UnloadTexture()

virtual void Renderer::UnloadTexture ( const Texture & texture )

pure virtual

Unload the Texture from GPU (cleanup)

Version: 0.0.1

Parameters

texture The loaded Texture

* * * @return

* * void

Implemented in OpenglRenderer.

Member Data Documentation

◆ type

RendererType Renderer::type = OPENGL

◆ viewport

int Renderer::viewport[2] = {480, 270}

◆ window

SDL_Window* Renderer::window = nullptr

The documentation for this class was generated from the following file:

engine/public/core/ember_core.h

Vec2	start
Vec2	end
color	Color in RGBA
thickness	float Line thickness

font	The loaded Font `TTF`
text	The text to draw, can be dynamic
transform
transform

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

◆ ~Renderer()

◆ Renderer()

Member Function Documentation

◆ BeginCanvas()

◆ BeginDrawing()

◆ BeginMode2D()

◆ ClearBackground()

◆ Destroy()

◆ DrawCircle()

◆ DrawCircleFilled()

◆ DrawLine()

◆ DrawRect()

◆ DrawRectFilled()

◆ DrawText()

◆ DrawTexture()

◆ DrawTextureEx()

◆ DrawTriangle()

◆ DrawTriangleFilled()

◆ EndCanvas()

◆ EndDrawing()

◆ EndMode2D()

◆ Flush()

◆ FlushText()

◆ GetContext()

◆ GetDefaultShader()

◆ GetTextShader()

◆ Initialize()

◆ LoadFont()

◆ LoadTexture()

◆ Resize()

◆ SetContext()

◆ UnloadFont()

◆ UnloadTexture()

Member Data Documentation

◆ type

◆ viewport

◆ window