mirror of
https://gitlab.freedesktop.org/monado/monado.git
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129 lines
2.4 KiB
C
129 lines
2.4 KiB
C
// Copyright 2019, Collabora, Ltd.
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// SPDX-License-Identifier: BSL-1.0
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/*!
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* @file
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* @brief SDL2 functions to drive the GUI.
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* @author Jakob Bornecrantz <jakob@collabora.com>
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* @ingroup gui
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*/
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#include "ogl/ogl_api.h"
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#include "gui_sdl2.h"
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/*
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*
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* Internal static functions
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*
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*/
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static void
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sdl2_handle_keydown(struct sdl2_program *p, const SDL_Event *e)
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{
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switch (e->key.keysym.sym) {
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case SDLK_ESCAPE: p->base.stopped = true; break;
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default: break;
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}
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}
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/*
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*
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* "Exported" functions.
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*
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*/
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void
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gui_sdl2_loop(struct sdl2_program *p)
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{
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SDL_Event event;
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while (!p->base.stopped) {
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if (SDL_WaitEvent(&event) == 0) {
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return;
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}
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if (event.type == SDL_QUIT) {
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return;
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}
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if (event.type == SDL_KEYDOWN) {
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sdl2_handle_keydown(p, &event);
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}
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}
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}
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int
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gui_sdl2_init(struct sdl2_program *p)
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{
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if (SDL_Init(SDL_INIT_EVERYTHING) < 0) {
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return -1;
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}
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p->sdl_initialized = true;
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const char *title = "Monado! ☺";
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int x = SDL_WINDOWPOS_UNDEFINED;
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int y = SDL_WINDOWPOS_UNDEFINED;
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int w = 1920;
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int h = 1080;
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, 0);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK,
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SDL_GL_CONTEXT_PROFILE_CORE);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS,
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SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
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SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
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SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
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SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
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SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
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int window_flags = 0;
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window_flags |= SDL_WINDOW_SHOWN;
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window_flags |= SDL_WINDOW_OPENGL;
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window_flags |= SDL_WINDOW_RESIZABLE;
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window_flags |= SDL_WINDOW_ALLOW_HIGHDPI;
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#if 0
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window_flags |= SDL_WINDOW_MAXIMIZED;
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#endif
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p->win = SDL_CreateWindow(title, x, y, w, h, window_flags);
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if (p->win == NULL) {
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return -1;
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}
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p->ctx = SDL_GL_CreateContext(p->win);
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if (p->ctx == NULL) {
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return -1;
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}
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SDL_GL_MakeCurrent(p->win, p->ctx);
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SDL_GL_SetSwapInterval(1); // Enable vsync
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// Setup OpenGL bindings.
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bool err = gladLoadGL((GLADloadfunc)SDL_GL_GetProcAddress) == 0;
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if (err) {
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return -1;
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}
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return 0;
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}
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void
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gui_sdl2_quit(struct sdl2_program *p)
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{
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if (p->ctx != NULL) {
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SDL_GL_DeleteContext(p->ctx);
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p->ctx = NULL;
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}
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if (p->win != NULL) {
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SDL_DestroyWindow(p->win);
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p->win = NULL;
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}
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SDL_Quit();
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p->sdl_initialized = false;
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}
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