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Renderer: Add mipmaps generation support

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This commit is contained in:
SirLynix
2023-05-14 18:55:41 +02:00
parent 3712b641f8
commit 1d32af53c5
33 changed files with 488 additions and 183 deletions
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31
include/Nazara/OpenGLRenderer/OpenGLTexture.inl
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@@ -2,11 +2,42 @@
// This file is part of the "Nazara Engine - OpenGL renderer"
// For conditions of distribution and use, see copyright notice in Config.hpp
#include <Nazara/Core/Error.hpp>
#include <stdexcept>
#include <Nazara/OpenGLRenderer/Debug.hpp>
namespace Nz
{
inline void OpenGLTexture::GenerateMipmaps(UInt8 baseLevel, UInt8 levelCount)
{
NazaraAssert(baseLevel + levelCount < m_textureInfo.levelCount, "out of bounds");
GL::Texture* targetTexture;
if (RequiresTextureViewEmulation())
{
baseLevel += m_viewInfo->baseMipLevel;
levelCount += m_viewInfo->baseMipLevel;
targetTexture = &m_parentTexture->m_texture;
}
else
targetTexture = &m_texture;
if (baseLevel != 0)
targetTexture->SetParameteri(GL_TEXTURE_BASE_LEVEL, baseLevel);
if (levelCount != m_textureInfo.levelCount)
targetTexture->SetParameteri(GL_TEXTURE_MAX_LEVEL, levelCount);
targetTexture->GenerateMipmap();
// Reset level config
if (baseLevel != 0)
targetTexture->SetParameteri(GL_TEXTURE_BASE_LEVEL, 0);
if (levelCount != m_textureInfo.levelCount)
targetTexture->SetParameteri(GL_TEXTURE_MAX_LEVEL, m_textureInfo.levelCount);
}
inline PixelFormat OpenGLTexture::GetFormat() const
{
return m_textureInfo.pixelFormat;