class opengl

Declaration

class opengl : public api { /* full declaration omitted */ };

Declared at: include/ekg/os/ekg_opengl.hpp:42

Inherits from: api

Member Variables

protected std::vector<ekg::gpu::sampler_t*> bound_sampler_list = {}

protected std::string_view glsl_version = {}

protected int32_t uniform_active_texture = {}

protected int32_t uniform_active_tex_slot = {}

protected int32_t uniform_content = {}

protected int32_t uniform_rect = {}

protected int32_t uniform_line_thickness = {}

protected int32_t uniform_scissor = {}

protected int32_t uniform_viewport_height = {}

protected int32_t uniform_projection = {}

protected uint32_t geometry_buffer = {}

protected uint32_t vbo_array = {}

protected uint32_t ebo_simple_shape = {}

protected uint32_t pipeline_program = {}

protected uint8_t protected_texture_active_index = {}

Inherited from api:

protected rendering_shader_fragment_source = {}

public static projection

public static viewport

Method Overview

• public uint64_t allocate_sampler(const ekg::gpu::sampler_allocate_info * p_sampler_allocate_info, ekg::gpu::sampler_t * p_sampler)
• public uint64_t bind_sampler(ekg::gpu::sampler_t * p_sampler)
• public bool create_pipeline_program(uint32_t & program, const std::unordered_map<std::string_view, uint32_t> & resources)
• public void draw(ekg::gpu::data_t * p_gpu_data, uint64_t loaded_gpu_data_size)
• public uint64_t fill_sampler(const ekg::gpu::sampler_fill_info * sampler_fill_info, ekg::gpu::sampler_t * p_sampler)
• public uint64_t generate_font_atlas(ekg::gpu::sampler_t * p_sampler, ekg::draw::font_face_t * p_font_face_text, ekg::draw::font_face_t * p_font_face_emoji, int32_t atlas_width, int32_t atlas_height, std::vector<char32_t> & loaded_sampler_generate_list, std::unordered_map<char32_t, ekg::draw::glyph_char_t> & mapped_glyph_char_data, float & non_swizzlable_range)
• public void init()
• public void log_vendor_details()
• public opengl(std::string_view set_glsl_version = "#version 450")
• public void pre_re_alloc()
• public void quit()
• public void re_alloc_geometry_resources(const float * p_data, uint64_t size)
• public void update_viewport(int32_t w, int32_t h)

Inherited from api:

• public allocate_sampler
• public bind_sampler
• public draw
• public fill_sampler
• public generate_font_atlas
• public init
• public invoke_pipeline
• public log_vendor_details
• public pre_re_alloc
• public quit
• public re_alloc_geometry_resources
• public revoke_pipeline
• public set_rendering_shader_fragment_source
• public update_viewport

Methods

¶uint64_t allocate_sampler(
    const ekg::gpu::sampler_allocate_info*
        p_sampler_allocate_info,
    ekg::gpu::sampler_t* p_sampler)

Declared at: include/ekg/os/ekg_opengl.hpp:87

Parameters

const ekg::gpu::sampler_allocate_info* p_sampler_allocate_info

ekg::gpu::sampler_t* p_sampler

¶uint64_t bind_sampler(
    ekg::gpu::sampler_t* p_sampler)

Declared at: include/ekg/os/ekg_opengl.hpp:108

Parameters

ekg::gpu::sampler_t* p_sampler

¶bool create_pipeline_program(
    uint32_t& program,
    const std::unordered_map<std::string_view,
                             uint32_t>& resources)

Declared at: include/ekg/os/ekg_opengl.hpp:62

Parameters

uint32_t& program

const std::unordered_map<std::string_view, uint32_t>& resources

¶void draw(ekg::gpu::data_t* p_gpu_data,
          uint64_t loaded_gpu_data_size)

Declared at: include/ekg/os/ekg_opengl.hpp:82

Parameters

ekg::gpu::data_t* p_gpu_data

uint64_t loaded_gpu_data_size

¶uint64_t fill_sampler(
    const ekg::gpu::sampler_fill_info*
        sampler_fill_info,
    ekg::gpu::sampler_t* p_sampler)

Declared at: include/ekg/os/ekg_opengl.hpp:92

Parameters

const ekg::gpu::sampler_fill_info* sampler_fill_info

ekg::gpu::sampler_t* p_sampler

¶uint64_t generate_font_atlas(
    ekg::gpu::sampler_t* p_sampler,
    ekg::draw::font_face_t* p_font_face_text,
    ekg::draw::font_face_t* p_font_face_emoji,
    int32_t atlas_width,
    int32_t atlas_height,
    std::vector<char32_t>&
        loaded_sampler_generate_list,
    std::unordered_map<char32_t,
                       ekg::draw::glyph_char_t>&
        mapped_glyph_char_data,
    float& non_swizzlable_range)

Declared at: include/ekg/os/ekg_opengl.hpp:97

Parameters

ekg::gpu::sampler_t* p_sampler

ekg::draw::font_face_t* p_font_face_text

ekg::draw::font_face_t* p_font_face_emoji

int32_t atlas_width

int32_t atlas_height

std::vector<char32_t>& loaded_sampler_generate_list

std::unordered_map<char32_t, ekg::draw::glyph_char_t>& mapped_glyph_char_data

float& non_swizzlable_range

¶void init()

Declared at: include/ekg/os/ekg_opengl.hpp:76

¶void log_vendor_details()

Declared at: include/ekg/os/ekg_opengl.hpp:74

¶opengl(std::string_view set_glsl_version =
           "#version 450")

Description

OpenGL API wrapper abstraction constructor; `set_glsl_version` must be 330 higher, if not, the version is auto-initialized as `450`. OpenGL ES 3 needs explicity set to the GLSL ES version.

Declared at: include/ekg/os/ekg_opengl.hpp:72

Parameters

std::string_view set_glsl_version = "#version 450"

¶void pre_re_alloc()

Declared at: include/ekg/os/ekg_opengl.hpp:78

¶void quit()

Declared at: include/ekg/os/ekg_opengl.hpp:77

¶void re_alloc_geometry_resources(
    const float* p_data,
    uint64_t size)

Declared at: include/ekg/os/ekg_opengl.hpp:80

Parameters

const float* p_data

uint64_t size

¶void update_viewport(int32_t w, int32_t h)

Declared at: include/ekg/os/ekg_opengl.hpp:79

Parameters

int32_t w

int32_t h