diff options
Diffstat (limited to 'src/client/shader.h')
| -rw-r--r-- | src/client/shader.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/src/client/shader.h b/src/client/shader.h index 8f1ba1e41..33c3e45e3 100644 --- a/src/client/shader.h +++ b/src/client/shader.h @@ -121,6 +121,43 @@ public: CachedShaderSetting<T, count, cache>(name, false){} }; +template <typename T, std::size_t count, bool cache, bool is_pixel> +class CachedStructShaderSetting { + const char *m_name; + T m_sent[count]; + bool has_been_set = false; + std::array<const char*, count> m_fields; +public: + CachedStructShaderSetting(const char *name, std::array<const char*, count> &&fields) : + m_name(name), m_fields(std::move(fields)) + {} + + void set(const T value[count], video::IMaterialRendererServices *services) + { + if (cache && has_been_set && std::equal(m_sent, m_sent + count, value)) + return; + + for (std::size_t i = 0; i < count; i++) { + std::string uniform_name = std::string(m_name) + "." + m_fields[i]; + + if (is_pixel) + services->setPixelShaderConstant(services->getPixelShaderConstantID(uniform_name.c_str()), value + i, 1); + else + services->setVertexShaderConstant(services->getVertexShaderConstantID(uniform_name.c_str()), value + i, 1); + } + + if (cache) { + std::copy(value, value + count, m_sent); + has_been_set = true; + } + } +}; + +template<typename T, std::size_t count, bool cache = true> +using CachedStructVertexShaderSetting = CachedStructShaderSetting<T, count, cache, false>; + +template<typename T, std::size_t count, bool cache = true> +using CachedStructPixelShaderSetting = CachedStructShaderSetting<T, count, cache, true>; /* ShaderSource creates and caches shaders. |