From 44f5ac32a68a617f93704d44c4339f7db13b323e Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Sat, 15 Dec 2018 23:09:32 +0100
Subject: 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".
---
 src/shader/wrap/graphic_shader.cc | 45 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 src/shader/wrap/graphic_shader.cc

(limited to 'src/shader/wrap/graphic_shader.cc')

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;
+}
-- 
cgit v1.2.3