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Renderer: Improve texture view support (and support emulation for OGL)

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This commit is contained in:
SirLynix
2022-12-02 22:58:34 +01:00
committed by Jérôme Leclercq
parent 08ea4c87a7
commit 56acbb2694
9 changed files with 99 additions and 24 deletions
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35
src/Nazara/OpenGLRenderer/OpenGLFboFramebuffer.cpp
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@@ -78,7 +78,40 @@ namespace Nz
throw std::runtime_error("unhandled pixel format " + PixelFormatInfo::GetName(textureFormat));
}
m_framebuffer.Texture2D(attachment, ToOpenGL(OpenGLTexture::ToTextureTarget(glTexture.GetType())), glTexture.GetTexture().GetObjectId());
if (glTexture.RequiresTextureViewEmulation())
{
const TextureViewInfo& texViewInfo = glTexture.GetTextureViewInfo();
if (texViewInfo.viewType != ImageType::E2D)
throw std::runtime_error("unrestricted texture views can only be used as 2D texture attachment");
const OpenGLTexture& parentTexture = *glTexture.GetParentTexture();
switch (parentTexture.GetType())
{
case ImageType::Cubemap:
{
constexpr std::array<GLenum, 6> faceTargets = { GL_TEXTURE_CUBE_MAP_POSITIVE_X, GL_TEXTURE_CUBE_MAP_NEGATIVE_X, GL_TEXTURE_CUBE_MAP_POSITIVE_Y, GL_TEXTURE_CUBE_MAP_NEGATIVE_Y, GL_TEXTURE_CUBE_MAP_POSITIVE_Z, GL_TEXTURE_CUBE_MAP_NEGATIVE_Z };
assert(texViewInfo.baseArrayLayer < faceTargets.size());
GLenum texTarget = faceTargets[texViewInfo.baseArrayLayer];
m_framebuffer.Texture2D(GL_COLOR_ATTACHMENT0, texTarget, parentTexture.GetTexture().GetObjectId(), texViewInfo.baseMipLevel);
break;
}
case ImageType::E1D:
case ImageType::E2D:
m_framebuffer.Texture2D(GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, parentTexture.GetTexture().GetObjectId(), texViewInfo.baseMipLevel);
break;
case ImageType::E1D_Array:
case ImageType::E2D_Array:
case ImageType::E3D:
m_framebuffer.TextureLayer(GL_COLOR_ATTACHMENT0, parentTexture.GetTexture().GetObjectId(), texViewInfo.baseArrayLayer, texViewInfo.baseMipLevel);
break;
}
}
else
m_framebuffer.Texture2D(attachment, ToOpenGL(OpenGLTexture::ToTextureTarget(glTexture.GetType())), glTexture.GetTexture().GetObjectId());
}
GLenum status = m_framebuffer.Check();