From 457fd25a0ea155a2ac2f8a64f97b74352518f54c Mon Sep 17 00:00:00 2001
From: matthew <matthew@owens.tech>
Date: Fri, 17 Aug 2018 19:14:08 +0100
Subject: [PATCH] created a basic gl window, implemented gl/err.c skeleton
---
gl/main.c | 30 ++++++++++++++++++++++++------
1 file changed, 24 insertions(+), 6 deletions(-)
diff --git a/gl/main.c b/gl/main.c
index 0d07da1..7d2c057 100644
--- a/gl/main.c
+++ b/gl/main.c
@@ -5,6 +5,8 @@
static SDL_Window *window = NULL;
static SDL_GLContext *context = NULL;
+static int screen_width = 1280;
+static int screen_height = 720;
static bool init()
{
@@ -15,8 +17,8 @@ static bool init()
return false;
}
- window = SDL_CreateWindow("csrpg", SDL_WINDOWPOS_CENTERED,
- SDL_WINDOWPOS_CENTERED, 512, 512, SDL_WINDOW_OPENGL);
+ window = SDL_CreateWindow("csrpg - opengl", SDL_WINDOWPOS_CENTERED,
+ SDL_WINDOWPOS_CENTERED, screen_width, screen_height, SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE);
if (window == NULL){
printf("SDL couldn't make an OpenGL window! SDL_Error: %s\n", SDL_GetError());
@@ -37,6 +39,7 @@ static bool init()
/* syncing the buffer swap with the monitor's vertical refresh */
SDL_GL_SetSwapInterval(1);
+ glViewport(0, 0, screen_width, screen_height);
glewExperimental = GL_TRUE;
glewInit();
@@ -44,23 +47,38 @@ static bool init()
return true;
}
+static void render()
+{
+ glClearColor(0.2, 0.3, 0.3, 1.0);
+ glClear(GL_COLOR_BUFFER_BIT);
+ SDL_GL_SwapWindow(window);
+}
+
int main()
{
Uint32 itime;
Uint32 ctime = 0;
+ SDL_Event e;
if(!init())
return -1;
itime = SDL_GetTicks();
- glClearColor(0.0, 0.0, 0.0, 1.0);
- glClear(GL_COLOR_BUFFER_BIT);
- SDL_GL_SwapWindow(window);
- while(ctime != itime + 2000){
+ while(ctime != itime + 10000){
ctime = SDL_GetTicks();
+
+ while(SDL_PollEvent(&e) != 0){
+ if (e.type == SDL_QUIT){
+ printf("quitting!\n");
+ ctime = itime + 10000;
+ }
+ }
+
+ render();
}
+
SDL_Quit();
return 0;
}
--
2.20.1