irrlicht/source/Irrlicht/OpenGL/ExtensionHandler.h

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// Copyright (C) 2023 Vitaliy Lobachevskiy
// Copyright (C) 2015 Patryk Nadrowski
// Copyright (C) 2009-2010 Amundis
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in Irrlicht.h
#pragma once
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#include <unordered_set>
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#include "EDriverFeatures.h"
#include "irrTypes.h"
#include "os.h"
#include "Common.h"
#include <mt_opengl.h> // must be after Common.h
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#include "COGLESCoreExtensionHandler.h"
namespace irr
{
namespace video
{
class COpenGL3ExtensionHandler : public COGLESCoreExtensionHandler
{
public:
COpenGL3ExtensionHandler() : COGLESCoreExtensionHandler() {}
void initExtensionsOld();
void initExtensionsNew();
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/// Checks whether a named extension is present
bool queryExtension(const std::string &name) const noexcept;
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bool queryFeature(video::E_VIDEO_DRIVER_FEATURE feature) const
{
switch (feature)
{
case EVDF_RENDER_TO_TARGET:
case EVDF_HARDWARE_TL:
case EVDF_MULTITEXTURE:
case EVDF_BILINEAR_FILTER:
case EVDF_MIP_MAP:
case EVDF_MIP_MAP_AUTO_UPDATE:
case EVDF_VERTEX_SHADER_1_1:
case EVDF_PIXEL_SHADER_1_1:
case EVDF_PIXEL_SHADER_1_2:
case EVDF_PIXEL_SHADER_2_0:
case EVDF_VERTEX_SHADER_2_0:
case EVDF_ARB_GLSL:
case EVDF_TEXTURE_NSQUARE:
case EVDF_TEXTURE_NPOT:
case EVDF_FRAMEBUFFER_OBJECT:
case EVDF_VERTEX_BUFFER_OBJECT:
case EVDF_COLOR_MASK:
case EVDF_ALPHA_TO_COVERAGE:
case EVDF_POLYGON_OFFSET:
case EVDF_BLEND_OPERATIONS:
case EVDF_BLEND_SEPARATE:
case EVDF_TEXTURE_MATRIX:
case EVDF_TEXTURE_CUBEMAP:
return true;
case EVDF_ARB_VERTEX_PROGRAM_1:
case EVDF_ARB_FRAGMENT_PROGRAM_1:
case EVDF_GEOMETRY_SHADER:
case EVDF_MULTIPLE_RENDER_TARGETS:
case EVDF_MRT_BLEND:
case EVDF_MRT_COLOR_MASK:
case EVDF_MRT_BLEND_FUNC:
case EVDF_OCCLUSION_QUERY:
return false;
case EVDF_STENCIL_BUFFER:
return StencilBuffer;
default:
return false;
};
}
static GLint GetInteger(GLenum key) {
GLint val = 0;
GL.GetIntegerv(key, &val);
return val;
};
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inline void irrGlActiveTexture(GLenum texture)
{
GL.ActiveTexture(texture);
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}
inline void irrGlCompressedTexImage2D(GLenum target, GLint level, GLenum internalformat, GLsizei width, GLsizei height, GLint border,
GLsizei imageSize, const void* data)
{
os::Printer::log("Compressed textures aren't supported", ELL_ERROR);
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}
inline void irrGlCompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height,
GLenum format, GLsizei imageSize, const void* data)
{
os::Printer::log("Compressed textures aren't supported", ELL_ERROR);
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}
inline void irrGlUseProgram(GLuint prog)
{
GL.UseProgram(prog);
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}
inline void irrGlBindFramebuffer(GLenum target, GLuint framebuffer)
{
GL.BindFramebuffer(target, framebuffer);
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}
inline void irrGlDeleteFramebuffers(GLsizei n, const GLuint *framebuffers)
{
GL.DeleteFramebuffers(n, framebuffers);
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}
inline void irrGlGenFramebuffers(GLsizei n, GLuint *framebuffers)
{
GL.GenFramebuffers(n, framebuffers);
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}
inline GLenum irrGlCheckFramebufferStatus(GLenum target)
{
return GL.CheckFramebufferStatus(target);
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}
inline void irrGlFramebufferTexture2D(GLenum target, GLenum attachment, GLenum textarget, GLuint texture, GLint level)
{
GL.FramebufferTexture2D(target, attachment, textarget, texture, level);
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}
inline void irrGlGenerateMipmap(GLenum target)
{
GL.GenerateMipmap(target);
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}
inline void irrGlDrawBuffer(GLenum mode)
{
GL.DrawBuffer(mode);
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}
inline void irrGlDrawBuffers(GLsizei n, const GLenum *bufs)
{
GL.DrawBuffers(n, bufs);
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}
inline void irrGlBlendFuncSeparate(GLenum sfactorRGB, GLenum dfactorRGB, GLenum sfactorAlpha, GLenum dfactorAlpha)
{
GL.BlendFuncSeparate(sfactorRGB, dfactorRGB, sfactorAlpha, dfactorAlpha);
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}
inline void irrGlBlendEquation(GLenum mode)
{
GL.BlendEquation(mode);
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}
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bool AnisotropicFilterSupported = false;
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bool BlendMinMaxSupported = false;
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private:
void addExtension(std::string &&name);
void extensionsLoaded();
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std::unordered_set<std::string> Extensions;
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};
}
}