GraphicCore¶

Graphic core interface.

Overview¶

Typical use cases:

Providing OpenGL-specific core graphics functionality and resource management

Header¶

Metadata¶

Author: Estorc
Version: v1.0
Copyright: Copyright (c) 2025 Estorc MIT License.

Classes¶

Classes¶
Class	Description
`RaeptorCogs::GAPI::GL::GraphicCore`	No description.

class GraphicCore : public RaeptorCogs::GAPI::Common::GraphicCore ¶

Public Functions

inline GraphicCore(Common::RendererBackend &renderer)¶

Constructor for GraphicCore.

Initializes the GraphicCore with a reference to the renderer backend.

Parameters:: renderer – Reference to the renderer backend.

void initGraphics()¶

Initialize graphics resources.

Sets up graphics resources such as shaders, buffers, and framebuffers.

Note

Called during renderer backend initialization.

void buildBuffers()¶

Build necessary buffers.

Sets up vertex buffers and attribute pointers.

Note

Called during renderer backend initialization.

GLuint getMaxTextureUnits() const¶

Get the maximum number of texture units supported by the GPU.

Note

Useful for managing texture bindings.

Returns:: Maximum number of texture units.

inline std::pair<ObjectHandler<Common::TextureData>, ObjectHandler<Common::TextureData>> &getMaskTextures()¶: Get the mask textures used for ping-pong rendering.

inline ObjectHandler<Common::Shader> &getMainShader()¶: Get the main shader program.

inline ObjectHandler<Common::Shader> &getMaskShader()¶: Get the mask shader program.

inline ObjectHandler<Common::RBO> &getRenderbuffer()¶: Get the renderbuffer used for offscreen rendering.

inline std::pair<ObjectHandler<Common::FBO>, ObjectHandler<Common::FBO>> &getPingPongMaskFramebuffer()¶: Get the ping-pong framebuffers used for mask rendering.

inline ObjectHandler<Common::FBO> &getTextureFramebuffer()¶: Get the texture framebuffer used for rendering to textures.

virtual void setViewport(int x, int y, int width, int height) override¶

See also

Common::GraphicCore::setViewport

virtual void clearSwapchainBuffers() override¶

virtual void useBlend() override¶

See also

Common::GraphicCore::useBlend

virtual void bindMaskTexture() override¶

See also

Common::GraphicCore::bindMaskTexture

virtual void setTextureUniform(ObjectHandler<Common::Shader> shader) override¶

See also

Common::GraphicCore::setTextureUniform

virtual void setMaskTextureUniform(ObjectHandler<Common::Shader> shader) override¶

virtual void drawElementsInstancedBaseVertexBaseInstance(size_t count, size_t instanceCount, size_t first, int baseVertex, unsigned int baseInstance) override¶

virtual void bindGraphicTexture(Graphic2D &graphic) override¶

See also

Common::GraphicCore::bindGraphicTexture

virtual void enableStencilGuarding() override¶

Private Members

ObjectHandler<Common::Shader> mainShader¶

Main shader program.

Holds the main shader for rendering.

ObjectHandler<Common::Shader> maskShader¶

Mask shader program.

Holds the shader for rendering masks.

std::pair<ObjectHandler<Common::FBO>, FBO> pingPongFramebuffer¶

Shader Storage Buffer Object (SSBO) for static instance data.

Holds the SSBO for static instance data.

ObjectHandler<Common::FBO> textureFramebuffer¶

Shader Storage Buffer Object (SSBO) for dynamic instance data.

Holds the SSBO for dynamic instance data.

std::pair<ObjectHandler<Common::FBO>, ObjectHandler<Common::FBO>> pingPongMaskFramebuffer¶

Ping-pong framebuffers for mask rendering.

Holds the pair of framebuffers used for ping-pong rendering of masks.

std::pair<ObjectHandler<Common::TextureData>, ObjectHandler<Common::TextureData>> maskTextures¶

Mask textures for ping-pong rendering.

Holds the pair of textures used for ping-pong rendering of masks.

ObjectHandler<Common::RBO> renderbuffer¶

Renderbuffer for offscreen rendering.

Holds the renderbuffer used for offscreen rendering.

Variables¶

int RaeptorCogs::GAPI::GL::DEFAULT_DYNAMIC_DATA_BUFFER_SIZE = (MAX_SPRITES * INSTANCE_SIZE)¶: Default size of the dynamic instance data buffer.

int RaeptorCogs::GAPI::GL::INSTANCE_SIZE = 32¶: Width of the instance data texture.

int RaeptorCogs::GAPI::GL::MAX_SPRITES = 8000000¶: Maximum number of sprites supported.

int RaeptorCogs::GAPI::GL::STATIC_INSTANCE_DATA_SIZE = (MAX_SPRITES * sizeof(Common::StaticInstanceData))¶: Size of the static instance data buffer.