85 lines
2.4 KiB
C++
85 lines
2.4 KiB
C++
// Copyright (C) 2020 Jérôme Leclercq
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// This file is part of the "Nazara Engine - OpenGL Renderer"
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// For conditions of distribution and use, see copyright notice in Config.hpp
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#include <Nazara/OpenGLRenderer/Wrapper/Texture.hpp>
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#include <cassert>
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#include <Nazara/OpenGLRenderer/Debug.hpp>
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namespace Nz::GL
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{
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inline Texture::~Texture()
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{
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Destroy();
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}
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inline bool Texture::Create(OpenGLDevice& device)
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{
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Destroy();
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m_device = &device;
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const Context& context = EnsureDeviceContext();
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context.glGenTextures(1U, &m_texture.Get());
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if (!m_texture)
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return false; //< TODO: Handle error messages
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return true;
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}
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inline void Texture::Destroy()
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{
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if (m_texture)
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{
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const Context& context = EnsureDeviceContext();
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context.glDeleteTextures(1U, &m_texture.Get());
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m_device->NotifyTextureDestruction(m_texture);
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m_texture = 0;
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}
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}
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inline void Texture::TexImage2D(GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border)
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{
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return TexImage2D(level, internalFormat, width, height, border, GL_RGB, GL_UNSIGNED_BYTE, nullptr);
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}
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inline void Texture::TexImage2D(GLint level, GLint internalFormat, GLsizei width, GLsizei height, GLint border, GLenum format, GLenum type, const void* data)
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{
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const Context& context = EnsureDeviceContext();
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context.BindTexture(TextureTarget::Target2D, m_texture);
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context.glTexImage2D(GL_TEXTURE_2D, level, internalFormat, width, height, border, format, type, data);
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//< TODO: Handle errors
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}
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inline void Texture::TexSubImage2D(GLint level, GLint xoffset, GLint yoffset, GLsizei width, GLsizei height, GLenum format, GLenum type, const void* data)
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{
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const Context& context = EnsureDeviceContext();
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context.BindTexture(TextureTarget::Target2D, m_texture);
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context.glTexSubImage2D(GL_TEXTURE_2D, level, xoffset, yoffset, width, height, format, type, data);
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//< TODO: Handle errors
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}
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inline const Context& Texture::EnsureDeviceContext()
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{
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assert(m_device);
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const Context* activeContext = Context::GetCurrentContext();
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if (!activeContext || activeContext->GetDevice() != m_device)
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{
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const Context& referenceContext = m_device->GetReferenceContext();
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if (!Context::SetCurrentContext(&referenceContext))
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throw std::runtime_error("failed to activate context");
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return referenceContext;
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}
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return *activeContext;
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}
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}
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#include <Nazara/OpenGLRenderer/DebugOff.hpp>
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