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author | Adrian Kummerlaender | 2018-12-15 23:09:32 +0100 |
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committer | Adrian Kummerlaender | 2018-12-15 23:09:32 +0100 |
commit | 44f5ac32a68a617f93704d44c4339f7db13b323e (patch) | |
tree | 6c191524aca1c7dbf3329026a59cfa3bc0109d2f /src/shader/wrap/graphic_shader.cc | |
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Hacky D2Q9 BGK LBM on GPU using GLSL compute shaders
Improvised on top of computicles's scaffolding.
Works in a world where _works_ is defined as "displays stuff on screen that invokes thoughts of fluid movement".
Diffstat (limited to 'src/shader/wrap/graphic_shader.cc')
-rw-r--r-- | src/shader/wrap/graphic_shader.cc | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/shader/wrap/graphic_shader.cc b/src/shader/wrap/graphic_shader.cc new file mode 100644 index 0000000..0ed37ff --- /dev/null +++ b/src/shader/wrap/graphic_shader.cc @@ -0,0 +1,45 @@ +#include "graphic_shader.h" + +#include "shader/util.h" + +GraphicShader::Guard::Guard(GLuint id): + _id(id) { + glUseProgram(_id); +} + +GraphicShader::Guard::~Guard() { + glUseProgram(0); +} + +GraphicShader::Guard GraphicShader::use() const { + return Guard(_id); +} + +GraphicShader::GraphicShader(const std::string& vertex, const std::string fragment): + _id(glCreateProgram()) { + glAttachShader(_id, util::compileShader(vertex, GL_VERTEX_SHADER)); + glAttachShader(_id, util::compileShader(fragment, GL_FRAGMENT_SHADER)); + glLinkProgram(_id); +} + +GraphicShader::~GraphicShader() { + glDeleteProgram(_id); +} + +GLuint GraphicShader::setUniform(const std::string& name, int value) const { + GLuint id = util::getUniform(_id, name); + glUniform1i(id, value); + return id; +} + +GLuint GraphicShader::setUniform(const std::string& name, const std::vector<GLuint>& v) const { + GLuint id = util::getUniform(_id, name); + glUniform1iv(id, v.size(), reinterpret_cast<const GLint*>(v.data())); + return id; +} + +GLuint GraphicShader::setUniform(const std::string& name, glm::mat4& M) const { + GLuint id = util::getUniform(_id, name); + glUniformMatrix4fv(id, 1, GL_FALSE, &M[0][0]); + return id; +} |