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Fix OpenGL render target binding composition

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This commit is contained in:
ssdfasd
2026-03-26 01:56:10 +08:00
parent 4b7d05d22d
commit 2e17c0019c
8 changed files with 361 additions and 54 deletions
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68
engine/src/RHI/OpenGL/OpenGLResourceView.cpp
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@@ -10,6 +10,53 @@
namespace XCEngine {
namespace RHI {
namespace {
GLenum ResolveFramebufferTextureTarget(OpenGLTextureType textureType, const ResourceViewDesc& desc) {
switch (textureType) {
case OpenGLTextureType::Texture1D:
return GL_TEXTURE_1D;
case OpenGLTextureType::Texture2D:
return GL_TEXTURE_2D;
case OpenGLTextureType::TextureCube: {
const uint32_t face = desc.firstArraySlice < 6 ? desc.firstArraySlice : 0;
return GL_TEXTURE_CUBE_MAP_POSITIVE_X + face;
}
case OpenGLTextureType::Texture2DArray:
case OpenGLTextureType::Texture3D:
case OpenGLTextureType::TextureCubeArray:
return 0;
default:
return GL_TEXTURE_2D;
}
}
int ResolveFramebufferAttachmentLayer(OpenGLTextureType textureType, const ResourceViewDesc& desc) {
switch (textureType) {
case OpenGLTextureType::Texture2DArray:
case OpenGLTextureType::Texture3D:
case OpenGLTextureType::TextureCubeArray:
return static_cast<int>(desc.firstArraySlice);
default:
return -1;
}
}
Format ResolveViewFormat(OpenGLTexture* texture, const ResourceViewDesc& desc) {
if (desc.format != 0) {
return static_cast<Format>(desc.format);
}
return texture ? texture->GetFormat() : Format::Unknown;
}
FramebufferAttachmentType ResolveDepthAttachmentType(Format format) {
return format == Format::D24_UNorm_S8_UInt
? FramebufferAttachmentType::DepthStencil
: FramebufferAttachmentType::Depth;
}
} // namespace
OpenGLResourceView::OpenGLResourceView()
: m_viewType(ResourceViewType::RenderTarget)
, m_format(Format::Unknown)
@@ -47,6 +94,7 @@ void OpenGLResourceView::Shutdown() {
m_framebuffer = nullptr;
m_textureUnitAllocator = nullptr;
m_uniformBufferManager = nullptr;
m_framebufferAttachment = {};
m_framebufferID = 0;
m_texture = nullptr;
m_buffer = nullptr;
@@ -101,11 +149,17 @@ bool OpenGLResourceView::InitializeAsRenderTarget(
}
m_viewType = ResourceViewType::RenderTarget;
m_format = static_cast<Format>(desc.format);
m_format = ResolveViewFormat(texture, desc);
m_dimension = desc.dimension;
m_texture = texture;
m_framebuffer = framebuffer;
m_framebufferID = framebuffer->GetFramebuffer();
m_framebufferAttachment.texture = texture->GetID();
m_framebufferAttachment.target = ResolveFramebufferTextureTarget(texture->GetOpenGLType(), desc);
m_framebufferAttachment.mipLevel = static_cast<int>(desc.mipLevel);
m_framebufferAttachment.layer = ResolveFramebufferAttachmentLayer(texture->GetOpenGLType(), desc);
m_framebufferAttachment.type = FramebufferAttachmentType::Color;
m_framebufferAttachment.format = static_cast<uint32_t>(m_format);
return true;
}
@@ -118,11 +172,17 @@ bool OpenGLResourceView::InitializeAsDepthStencil(
}
m_viewType = ResourceViewType::DepthStencil;
m_format = static_cast<Format>(desc.format);
m_format = ResolveViewFormat(texture, desc);
m_dimension = desc.dimension;
m_texture = texture;
m_framebuffer = framebuffer;
m_framebufferID = framebuffer->GetFramebuffer();
m_framebufferAttachment.texture = texture->GetID();
m_framebufferAttachment.target = ResolveFramebufferTextureTarget(texture->GetOpenGLType(), desc);
m_framebufferAttachment.mipLevel = static_cast<int>(desc.mipLevel);
m_framebufferAttachment.layer = ResolveFramebufferAttachmentLayer(texture->GetOpenGLType(), desc);
m_framebufferAttachment.type = ResolveDepthAttachmentType(m_format);
m_framebufferAttachment.format = static_cast<uint32_t>(m_format);
return true;
}
@@ -135,7 +195,7 @@ bool OpenGLResourceView::InitializeAsShaderResource(
}
m_viewType = ResourceViewType::ShaderResource;
m_format = static_cast<Format>(desc.format);
m_format = ResolveViewFormat(texture, desc);
m_dimension = desc.dimension;
m_texture = texture;
m_textureUnit = -1;
@@ -157,7 +217,7 @@ bool OpenGLResourceView::InitializeAsUnorderedAccess(
}
m_viewType = ResourceViewType::UnorderedAccess;
m_format = static_cast<Format>(desc.format);
m_format = ResolveViewFormat(texture, desc);
m_dimension = desc.dimension;
m_texture = texture;
m_textureUnit = unit;