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authorDan Goodliffe <dan@randomdan.homeip.net>2023-04-29 19:07:11 +0100
committerDan Goodliffe <dan@randomdan.homeip.net>2023-04-29 19:07:11 +0100
commit5a0b3927a33807cca4c77c40eb873f8a3b51b0b0 (patch)
tree4af0585ee8f8f468ab10c0a4fe9994fb30b79599 /gfx/gl/vertexArrayObject.hpp
parentDunno how, but some DOS new lines got in here! (diff)
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Drop .hpp for header only things
Half of them acquired a .cpp part anyway
Diffstat (limited to 'gfx/gl/vertexArrayObject.hpp')
-rw-r--r--gfx/gl/vertexArrayObject.hpp109
1 files changed, 0 insertions, 109 deletions
diff --git a/gfx/gl/vertexArrayObject.hpp b/gfx/gl/vertexArrayObject.hpp
deleted file mode 100644
index 7ded03e..0000000
--- a/gfx/gl/vertexArrayObject.hpp
+++ /dev/null
@@ -1,109 +0,0 @@
-#pragma once
-
-#include "collections.hpp"
-#include "gl_traits.hpp"
-#include "special_members.hpp"
-#include <GL/glew.h>
-
-class VertexArrayObject {
-public:
- template<typename T> [[nodiscard]] VertexArrayObject(const T & arrayObject)
- {
- glBindVertexArray(arrayObject);
- }
- ~VertexArrayObject()
- {
- glBindVertexArray(0);
- }
- NO_MOVE(VertexArrayObject);
- NO_COPY(VertexArrayObject);
-
- template<typename m, typename T> struct MP {
- constexpr MP(m T::*p) : P {p} { }
- operator void *() const
- {
- return &(static_cast<T *>(nullptr)->*P);
- }
- m T::*P;
- using value_type = m;
- };
- template<typename m, typename T> MP(m T::*) -> MP<m, T>;
-
- template<typename VertexT, MP... attribs>
- VertexArrayObject &
- addAttribs(const GLuint arrayBuffer, const SequentialCollection<VertexT> auto & vertices, const GLuint divisor = 0)
- {
- addAttribs<VertexT, attribs...>(arrayBuffer, divisor);
- data(vertices, arrayBuffer, GL_ARRAY_BUFFER);
- return *this;
- }
-
- template<typename VertexT, MP... attribs>
- VertexArrayObject &
- addAttribs(const GLuint arrayBuffer, const GLuint divisor = 0)
- {
- configure_attribs<VertexT, attribs...>(arrayBuffer, divisor);
- return *this;
- }
-
- template<typename Indices>
- VertexArrayObject &
- addIndices(const GLuint arrayBuffer, const Indices & indices)
- {
- data(indices, arrayBuffer, GL_ELEMENT_ARRAY_BUFFER);
- return *this;
- }
-
- VertexArrayObject &
- addIndices(const GLuint arrayBuffer)
- {
- glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, arrayBuffer);
- return *this;
- }
-
- template<typename Data>
- static void
- data(const Data & data, const GLuint arrayBuffer, GLenum target)
- {
- using Value = typename Data::value_type;
- glBindBuffer(target, arrayBuffer);
- glBufferData(target, static_cast<GLsizeiptr>(sizeof(Value) * data.size()), data.data(), GL_STATIC_DRAW);
- }
-
-private:
- template<typename VertexT, typename T>
- static auto
- set_pointer(const GLuint vertexArrayId, const void * ptr, const GLuint divisor)
- {
- using traits = gl_traits<T>;
- const auto usedAttribs
- = traits::vertexAttribFunc(vertexArrayId, traits::size, traits::type, sizeof(VertexT), ptr);
- for (GLuint i {}; i < usedAttribs; i++) {
- glEnableVertexAttribArray(vertexArrayId + i);
- glVertexAttribDivisor(vertexArrayId + i, divisor);
- }
- return usedAttribs;
- }
-
- template<typename VertexT, MP attrib>
- static auto
- set_pointer(const GLuint vertexArrayId, const GLuint divisor)
- {
- return set_pointer<VertexT, typename decltype(attrib)::value_type>(vertexArrayId, attrib, divisor);
- }
-
- template<typename VertexT, MP... attribs>
- void
- configure_attribs(const GLuint arrayBuffer, const GLuint divisor)
- {
- glBindBuffer(GL_ARRAY_BUFFER, arrayBuffer);
- if constexpr (sizeof...(attribs) == 0) {
- vertexArrayId += set_pointer<VertexT, VertexT>(vertexArrayId, nullptr, divisor);
- }
- else {
- ((vertexArrayId += set_pointer<VertexT, attribs>(vertexArrayId, divisor)), ...);
- }
- }
-
- GLuint vertexArrayId {};
-};