diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/gl_traits.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/lib/gl_traits.h b/lib/gl_traits.h index 934b505..2d3d85d 100644 --- a/lib/gl_traits.h +++ b/lib/gl_traits.h @@ -4,6 +4,8 @@ #include <glad/gl.h> #include <glm/common.hpp> #include <glm/fwd.hpp> +#include <glm/gtc/type_ptr.hpp> +#include <span> template<typename T> struct gl_traits; @@ -37,6 +39,9 @@ struct gl_traits_integer : public gl_traits_base { template<> struct gl_traits<glm::f32> : public gl_traits_float { static constexpr GLenum type {GL_FLOAT}; + static constexpr auto glUniformFunc {&glUniform1f}; + static constexpr std::array glUniformvFunc {&glUniform1fv, &glUniform2fv, &glUniform3fv, &glUniform4fv}; + static constexpr std::array glUniformmFunc {&glUniformMatrix2fv, &glUniformMatrix3fv, &glUniformMatrix4fv}; }; template<> struct gl_traits<glm::f64> : public gl_traits_longfloat { @@ -53,6 +58,8 @@ template<> struct gl_traits<glm::int16> : public gl_traits_integer { template<> struct gl_traits<glm::int32> : public gl_traits_integer { static constexpr GLenum type {GL_INT}; + static constexpr auto glUniformFunc {&glUniform1i}; + static constexpr std::array glUniformvFunc {&glUniform1iv, &glUniform2iv, &glUniform3iv, &glUniform4iv}; }; template<> struct gl_traits<glm::uint8> : public gl_traits_integer { @@ -65,6 +72,9 @@ template<> struct gl_traits<glm::uint16> : public gl_traits_integer { template<> struct gl_traits<glm::uint32> : public gl_traits_integer { static constexpr GLenum type {GL_UNSIGNED_INT}; + static constexpr auto glUniformFunc {&glUniform1ui}; + static constexpr std::array<decltype(&glUniform1uiv), 5> glUniformvFunc { + &glUniform1uiv, &glUniform2uiv, &glUniform3uiv, &glUniform4uiv}; }; template<typename T, std::size_t S> struct gl_traits<std::array<T, S>> : public gl_traits<T> { @@ -87,3 +97,49 @@ struct gl_traits<glm::mat<C, R, T, Q>> : public gl_traits<T> { return R; }}; }; + +template<typename T> +void +glUniform(GLint location, T v) +{ + static_assert( + requires { gl_traits<T>::glUniformFunc; }, "Has glUnform1T"); + (*gl_traits<T>::glUniformFunc)(location, v); +} + +template<glm::length_t L, typename T, glm::qualifier Q> +void +glUniform(GLint location, const glm::vec<L, T, Q> & v) +{ + static_assert( + requires { gl_traits<T>::glUniformFunc; }, "Has glUnformNTv"); + (*gl_traits<T>::glUniformvFunc[L - 1])(location, 1, glm::value_ptr(v)); +} + +template<glm::length_t L, typename T, glm::qualifier Q> +void +glUniform(GLint location, std::span<const glm::vec<L, T, Q>> v) +{ + static_assert( + requires { gl_traits<T>::glUniformvFunc; }, "Has glUnformNTv"); + (*gl_traits<T>::glUniformvFunc[L - 1])(location, static_cast<GLsizei>(v.size()), glm::value_ptr(v.front())); +} + +template<glm::length_t L, typename T, glm::qualifier Q> +void +glUniform(GLint location, const glm::mat<L, L, T, Q> & v) +{ + static_assert( + requires { gl_traits<T>::glUniformmFunc; }, "Has glUnformMatrixNTv"); + (*gl_traits<T>::glUniformmFunc[L - 2])(location, 1, GL_FALSE, glm::value_ptr(v)); +} + +template<glm::length_t L, typename T, glm::qualifier Q> +void +glUniform(GLint location, std::span<const glm::mat<L, L, T, Q>> v) +{ + static_assert( + requires { gl_traits<T>::glUniformmFunc; }, "Has glUnformMatrixNTv"); + (*gl_traits<T>::glUniformmFunc[L - 2])( + location, static_cast<GLsizei>(v.size()), GL_FALSE, glm::value_ptr(v.front())); +} |