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Renderer: Add support for storage buffers

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This commit is contained in:
SirLynix
2022-06-17 20:15:16 +02:00
parent 0978feafbc
commit 093d9d344e
16 changed files with 160 additions and 18 deletions
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11
include/Nazara/OpenGLRenderer/OpenGLRenderPipelineLayout.hpp
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@@ -41,17 +41,26 @@ namespace Nz
private:
struct DescriptorPool;
struct StorageBufferDescriptor;
struct TextureDescriptor;
struct UniformBufferDescriptor;
DescriptorPool& AllocatePool();
ShaderBindingPtr AllocateFromPool(std::size_t poolIndex, UInt32 setIndex);
template<typename F> void ForEachDescriptor(std::size_t poolIndex, std::size_t bindingIndex, F&& functor);
StorageBufferDescriptor& GetStorageBufferDescriptor(std::size_t poolIndex, std::size_t bindingIndex, std::size_t descriptorIndex);
TextureDescriptor& GetTextureDescriptor(std::size_t poolIndex, std::size_t bindingIndex, std::size_t descriptorIndex);
UniformBufferDescriptor& GetUniformBufferDescriptor(std::size_t poolIndex, std::size_t bindingIndex, std::size_t descriptorIndex);
void Release(ShaderBinding& binding);
inline void TryToShrink();
struct StorageBufferDescriptor
{
GLuint buffer;
GLintptr offset;
GLsizeiptr size;
};
struct TextureDescriptor
{
GLuint texture;
@@ -66,7 +75,7 @@ namespace Nz
GLsizeiptr size;
};
using Descriptor = std::variant<std::monostate, TextureDescriptor, UniformBufferDescriptor>;
using Descriptor = std::variant<std::monostate, StorageBufferDescriptor, TextureDescriptor, UniformBufferDescriptor>;
struct DescriptorPool
{

1
include/Nazara/OpenGLRenderer/Utils.inl
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@@ -265,6 +265,7 @@ namespace Nz
case GL::BufferTarget::ElementArray: return GL_ELEMENT_ARRAY_BUFFER;
case GL::BufferTarget::PixelPack: return GL_PIXEL_PACK_BUFFER;
case GL::BufferTarget::PixelUnpack: return GL_PIXEL_UNPACK_BUFFER;
case GL::BufferTarget::Storage: return GL_SHADER_STORAGE_BUFFER;
case GL::BufferTarget::TransformFeedback: return GL_TRANSFORM_FEEDBACK_BUFFER;
case GL::BufferTarget::Uniform: return GL_UNIFORM_BUFFER;
}

20
include/Nazara/OpenGLRenderer/Wrapper/Context.hpp
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@@ -36,6 +36,7 @@ namespace Nz::GL
ElementArray,
PixelPack,
PixelUnpack,
Storage,
TransformFeedback,
Uniform,
@@ -52,6 +53,7 @@ namespace Nz::GL
{
DepthClamp,
SpirV,
StorageBuffers,
TextureCompressionS3tc,
TextureFilterAnisotropic,
@@ -120,6 +122,7 @@ namespace Nz::GL
void BindFramebuffer(FramebufferTarget target, GLuint fbo) const;
void BindProgram(GLuint program) const;
void BindSampler(UInt32 textureUnit, GLuint sampler) const;
void BindStorageBuffer(UInt32 storageUnit, GLuint buffer, GLintptr offset, GLsizeiptr size) const;
void BindTexture(TextureTarget target, GLuint texture) const;
void BindTexture(UInt32 textureUnit, TextureTarget target, GLuint texture) const;
void BindUniformBuffer(UInt32 uboUnit, GLuint buffer, GLintptr offset, GLsizeiptr size) const;
@@ -212,22 +215,23 @@ namespace Nz::GL
GLsizei width, height;
};
struct TextureUnit
{
GLuint sampler = 0;
std::array<GLuint, UnderlyingCast(TextureTarget::Max) + 1> textureTargets = { 0 };
};
struct UniformBufferUnit
struct BufferBinding
{
GLuint buffer = 0;
GLintptr offset = 0;
GLsizeiptr size = 0;
};
struct TextureUnit
{
GLuint sampler = 0;
std::array<GLuint, UnderlyingCast(TextureTarget::Max) + 1> textureTargets = { 0 };
};
std::array<GLuint, UnderlyingCast(BufferTarget::Max) + 1> bufferTargets = { 0 };
std::vector<TextureUnit> textureUnits;
std::vector<UniformBufferUnit> uboUnits;
std::vector<BufferBinding> storageUnits;
std::vector<BufferBinding> uboUnits;
Box scissorBox;
Box viewport;
GLuint boundProgram = 0;