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[glutils] Add helper functions for setting up shaders

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This commit is contained in:
Gary Talent
2024-01-27 23:39:03 -06:00
parent 124c7029bd
commit aa8200beed
2 changed files with 76 additions and 6 deletions
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34
deps/glutils/include/glutils/glutils.hpp vendored
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@ -150,8 +150,38 @@ class FrameBufferBind {
void bind(const FrameBuffer &fb) noexcept;
struct ShaderVarSet {
GLsizei len{};
ox::String name;
};
ox::Result<GLProgram> buildShaderProgram(ox::CStringView const&vert, ox::CStringView const&frag, ox::CStringView const&geo = "") noexcept;
struct ProgramSource {
ox::Vector<glutils::ShaderVarSet> const shaderParams;
GLsizei const rowLen = [this] {
GLsizei len{};
for (auto const&v : shaderParams) {
len += v.len;
}
return len;
}();
ox::String const vertShader{};
ox::String const fragShader{};
ox::String const geomShader{};
};
ox::Result<GLProgram> buildShaderProgram(ProgramSource const&src) noexcept;
ox::Result<GLProgram> buildShaderProgram(
ox::CStringView const&vert,
ox::CStringView const&frag,
ox::CStringView const&geo = "") noexcept;
void setupShaderParams(
GLProgram const&shader,
ox::Vector<ShaderVarSet> const&vars,
GLsizei vertexRowLen) noexcept;
void setupShaderParams(GLProgram const&shader, ox::Vector<ShaderVarSet> const&vars) noexcept;
glutils::GLVertexArray generateVertexArrayObject() noexcept;
@ -160,6 +190,8 @@ glutils::GLBuffer generateBuffer() noexcept;
[[nodiscard]]
FrameBuffer generateFrameBuffer(int width, int height) noexcept;
void resizeFrameBuffer(FrameBuffer &fb, int width, int height) noexcept;
/**
* Resizes a FrameBuffer, and creates if it does not already exist.
*/