testator boob

resources/client/shaders/test.vert

@@ -1,18 +1,12 @@
 #version 330 core
-layout (location = 0) in vec2 aScreenCoords;
+layout (location = 0) in vec4 aScreenCoords;
 layout (location = 1) in vec2 aTexCoords;
 
 out vec2 texCoords;
 
-uniform vec2 screenSize;
+uniform mat4 orthoMatrix;
 
 void main() {
-    mat2 scMatrix = mat2(screenSize.x);
-    vec2 viewCoords = scMatrix * aScreenCoords;
-    gl_Position =
-        vec4((2 * aScreenCoords.x) / screenSize.x - 1,
-             1 - (2 * aScreenCoords.y) / screenSize.y,
-             0, 0);
-
+    gl_Position = orthoMatrix * aScreenCoords;
     texCoords = aTexCoords;
 }

src/client/main.cpp

@@ -1,10 +1,11 @@
 #include <SDL.h>
-#include <glm/vec2.hpp>
-#include <glm/mat2x2.hpp>
-
+#include <glm/glm.hpp>
+#include <glm/gtc/matrix_transform.hpp>
 #define GL3_PROTOTYPES 1
 #include <GL/glew.h>
 
+#include "shaders/test.hpp"
+
 void setColor(float r, float g, float b, SDL_Window* window) {
     glClearColor(r, g, b, 1.0);
     glClear(GL_COLOR_BUFFER_BIT);
@@ -12,6 +13,8 @@ void setColor(float r, float g, float b, SDL_Window* window) {
 }
 
 int main(int argc, char* argv[]) {
+    using namespace sosc;
+
     if(SDL_Init(SDL_INIT_VIDEO) < 0) {
         printf(SDL_GetError());
         return -1;
@@ -37,6 +40,10 @@ int main(int argc, char* argv[]) {
 
     SDL_GL_SetSwapInterval(1);
 
+    shdr::TestShader test;
+    test.Load();
+    test.UpdateWindow(window);
+
 #ifndef __APPLE__
     glewExperimental = GL_TRUE;
     glewInit();
@@ -46,6 +53,8 @@ int main(int argc, char* argv[]) {
     while(running) {
         glClear(GL_COLOR_BUFFER_BIT);
 
+
+
         SDL_GL_SwapWindow(window);
 
         SDL_Event event;
@@ -56,7 +65,8 @@ int main(int argc, char* argv[]) {
             if(event.type == SDL_WINDOWEVENT &&
                event.window.event == SDL_WINDOWEVENT_SIZE_CHANGED)
             {
-
+                glViewport(0, 0, event.window.data1, event.window.data2);
+                test.UpdateWindow(window);
             }
 
             if(event.type == SDL_KEYDOWN) {
@@ -71,6 +81,8 @@ int main(int argc, char* argv[]) {
         }
     }
 
+    test.Unload();
+
     SDL_GL_DeleteContext(ctx);
     SDL_DestroyWindow(window);
 

src/client/shaders/test.cpp

@@ -1,5 +0,0 @@
-#include "test.hpp"
-
-void sosc::shdr::TestShader::PrepareLoad() {
-
-}

src/client/shaders/test.hpp

@@ -1,6 +1,9 @@
 #ifndef SOSC_SHADER_TEST_H
 #define SOSC_SHADER_TEST_H
 
+#include <glm/glm.hpp>
+#include <glm/gtc/type_ptr.hpp>
+#include "common.hpp"
 #include "_shader.hpp"
 
 namespace sosc {
@@ -8,11 +11,33 @@ namespace shdr {
 class TestShader : public Shader {
 public:
     enum Uniforms {
-        SCREEN_SIZE = 0,
+        ORTHO_MATRIX = 0,
         GRAPHIC_SAMPLER
     };
+
+    void UpdateWindow(SDL_Window* window) {
+        this->Start();
+
+        int width, height;
+        SDL_GetWindowSize(window, &width, &height);
+        auto orthoMatrix = glm::ortho(0, width, height, 0);
+        glUniformMatrix4fv(
+            (*this)[ORTHO_MATRIX], 1, GL_FALSE, glm::value_ptr(orthoMatrix)
+        );
+
+        this->Stop();
+    }
 protected:
-    void PrepareLoad() override;
+    void PrepareLoad() override {
+        this->AttachSource(SOSC_RESC("shaders/test.vert"), GL_VERTEX_SHADER);
+        this->AttachSource(SOSC_RESC("shaders/test.frag"), GL_VERTEX_SHADER);
+
+        this->LinkProgram();
+        this->LoadUniforms({
+            "orthoMatrix",
+            "graphicSampler"
+        });
+    }
 };
 }}