From 1e677d8532d0832537112db9429e7ecdcff53215 Mon Sep 17 00:00:00 2001
From: jvech <jmvalenciae@unal.edu.co>
Date: Tue, 30 Aug 2022 09:55:48 -0500
Subject: feat: implement glUniformMatrix4fv and glUniform1f wrapper

---
 src/main.c   | 13 ++++---------
 src/shader.c | 14 ++++++++++++++
 src/shader.h |  2 ++
 3 files changed, 20 insertions(+), 9 deletions(-)

(limited to 'src')

diff --git a/src/main.c b/src/main.c
index 0994746..bd7f95c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -218,7 +218,6 @@ int main()
     mainCamera.front = linearVec3(0.0, 0.0, 0.0);
     mainCamera.up = linearVec3(0.0, 1.0, 0.0);
 
-    unsigned int modelLoc, viewLoc, projLoc;
     Mat4 model, view, proj;
     Mat4 T, S, R;
 
@@ -245,20 +244,16 @@ int main()
 
         glfwGetWindowSize(window, &width, &height);
         proj = linearPerspective(35, width / (float)height, 0.1, 100);
+
         glUseProgram(shaderProgram);
         glBindVertexArray(VAO);
         glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, EBO);
 
-        modelLoc = glGetUniformLocation(shaderProgram, "model");
-        viewLoc = glGetUniformLocation(shaderProgram, "view");
-        projLoc = glGetUniformLocation(shaderProgram, "proj");
-
-        glUniformMatrix4fv(modelLoc, 1, GL_TRUE, model.matrix[0]);
-        glUniformMatrix4fv(viewLoc, 1, GL_TRUE, view.matrix[0]);
-        glUniformMatrix4fv(projLoc, 1, GL_TRUE, proj.matrix[0]);
+        shaderSetUniformMatrix4fv(shaderProgram, "model", model.matrix[0]);
+        shaderSetUniformMatrix4fv(shaderProgram, "view", view.matrix[0]);
+        shaderSetUniformMatrix4fv(shaderProgram, "proj", proj.matrix[0]);
 
         glDrawElements(GL_TRIANGLES, sizeof(indices) / sizeof(int), GL_UNSIGNED_INT, 0);
-
         glfwSwapBuffers(window);
         glfwPollEvents();
     }
diff --git a/src/shader.c b/src/shader.c
index 700628f..ae2f08e 100644
--- a/src/shader.c
+++ b/src/shader.c
@@ -99,3 +99,17 @@ shaderCreateProgram(const char *vertexShaderPath, const char *fragmentShaderPath
 
     return shaderProgram;
 }
+
+void
+shaderSetUniformMatrix4fv(unsigned int program, char *uniformVariable, float *data)
+{
+    unsigned int varLoc = glGetUniformLocation(program, uniformVariable);
+    glUniformMatrix4fv(varLoc, 1, GL_TRUE, data);
+}
+
+void
+shaderSetUniform1f(unsigned int program, char *uniformVariable, float data)
+{
+    unsigned int varLoc = glGetUniformLocation(program, uniformVariable);
+    glUniform1f(varLoc, data);
+}
diff --git a/src/shader.h b/src/shader.h
index 5f1e315..aa92314 100644
--- a/src/shader.h
+++ b/src/shader.h
@@ -2,4 +2,6 @@
 #define __SHADER__
 
 unsigned int shaderCreateProgram(const char *vertexShaderPath, const char *fragmentShaderPath);
+void shaderSetUniformMatrix4fv(unsigned int program, char *uniformVariable, float *data);
+void shaderSetUniform1f(unsigned int program, char *uniformVariable, float data);
 #endif
-- 
cgit v1.2.3-70-g09d2