opengl_utils.h

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#pragma once
 
#include "dependency_glad.h"
#include "eu/base/size.h"
 
namespace eu::render
{
 
 
void setup_opengl_debug();
 
GLenum glenum_from_int(int i);
GLuint gluint_from_int(int i);
GLsizeiptr glsizeiptr_from_sizet(std::size_t t);
GLsizei glsizei_from_sizet(std::size_t t);
 
u32 create_buffer();
void destroy_buffer(u32 vbo);
 
u32 create_vertex_array();
void destroy_vertex_array(u32 vao);
 
void set_gl_viewport(const Size& sz);
void set_gl_viewport(const Rect& r);
 
#if FF_HAS(ENABLE_GL_DEBUG)
 
    enum class DebugLabelFor
    {
        Buffer,
        Shader,
        Program,
        VertexArray,
        Query,
        ProgramPipeline,
        Sampler,
        Texture,
        RenderBuffer,
        FrameBuffer
    };
 
    void set_gl_debug_label(DebugLabelFor type, GLuint object, const std::string& label);
    void set_gl_debug_label(DebugLabelFor type, GLuint object, std::string_view label);
 
 
    #define SET_DEBUG_LABEL(ID, FOR) set_gl_debug_label(FOR, ID, debug_label)
    #define SET_DEBUG_LABEL_NAMED(ID, FOR, NAME) set_gl_debug_label(FOR, ID, NAME)
 
    // See opengl_labels.h for passing the labels/names
 
    struct ScopedDebugGroup
    {
        explicit ScopedDebugGroup(const std::string& message, unsigned int id=0);
        explicit ScopedDebugGroup(std::string_view message, unsigned int id=0);
        ~ScopedDebugGroup();
 
        ScopedDebugGroup(ScopedDebugGroup&&) = delete;
        ScopedDebugGroup(const ScopedDebugGroup&) = delete;
        void operator=(ScopedDebugGroup&&) = delete;
        void operator=(const ScopedDebugGroup&) = delete;
    };
 
    #define CONCAT_IMPL(x, y) x##y
    #define CONCAT(x, y) CONCAT_IMPL(x, y)
    #define SCOPED_DEBUG_GROUP(TEXT) [[maybe_unused]] const ScopedDebugGroup CONCAT(sc, __LINE__){TEXT}
 
#else
    constexpr void opengl_nop()
    {
    }
 
    #define SET_DEBUG_LABEL(ID, FOR) opengl_nop()
    #define SET_DEBUG_LABEL_NAMED(ID, FOR, NAME) opengl_nop()
 
    #define SCOPED_DEBUG_GROUP(TEXT) opengl_nop()
#endif
 
 
}