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| author | Dan Goodliffe <dan@randomdan.homeip.net> | 2021-01-16 18:09:15 +0000 |
|---|---|---|
| committer | Dan Goodliffe <dan@randomdan.homeip.net> | 2021-01-16 18:09:15 +0000 |
| commit | 400410fcd436d5e4310bfa779f0309c5fae5b2c2 (patch) | |
| tree | 89661918c487e63b6c71f2e9281b553928010606 /display.cpp | |
| download | ilt-400410fcd436d5e4310bfa779f0309c5fae5b2c2.tar.bz2 ilt-400410fcd436d5e4310bfa779f0309c5fae5b2c2.tar.xz ilt-400410fcd436d5e4310bfa779f0309c5fae5b2c2.zip | |
Initial commit
Stripped back and formatted from https://github.com/BennyQBD/ModernOpenGLTutorial/
Diffstat (limited to 'display.cpp')
| -rw-r--r-- | display.cpp | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/display.cpp b/display.cpp new file mode 100644 index 0000000..4317933 --- /dev/null +++ b/display.cpp @@ -0,0 +1,50 @@ +#include "display.h"
+#include <GL/glew.h>
+#include <iostream>
+
+Display::Display(int width, int height, const std::string & title)
+{
+ SDL_Init(SDL_INIT_EVERYTHING);
+
+ SDL_GL_SetAttribute(SDL_GL_RED_SIZE, 8);
+ SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
+ SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
+ SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 8);
+ SDL_GL_SetAttribute(SDL_GL_BUFFER_SIZE, 32);
+ SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 16);
+ SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
+
+ m_window = SDL_CreateWindow(
+ title.c_str(), SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, width, height, SDL_WINDOW_OPENGL);
+ m_glContext = SDL_GL_CreateContext(m_window);
+
+ GLenum res = glewInit();
+ if (res != GLEW_OK) {
+ std::cerr << "Glew failed to initialize!" << std::endl;
+ }
+
+ glEnable(GL_DEPTH_TEST);
+
+ glEnable(GL_CULL_FACE);
+ glCullFace(GL_BACK);
+}
+
+Display::~Display()
+{
+ SDL_GL_DeleteContext(m_glContext);
+ SDL_DestroyWindow(m_window);
+ SDL_Quit();
+}
+
+void
+Display::Clear(float r, float g, float b, float a)
+{
+ glClearColor(r, g, b, a);
+ glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+}
+
+void
+Display::SwapBuffers()
+{
+ SDL_GL_SwapWindow(m_window);
+}
|