149 lines
4.0 KiB
C++
149 lines
4.0 KiB
C++
/*
|
|
Created on: Oct 18, 2019
|
|
|
|
Copyright 2019 flyinghead
|
|
|
|
This file is part of Flycast.
|
|
|
|
Flycast is free software: you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation, either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
Flycast is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with Flycast. If not, see <https://www.gnu.org/licenses/>.
|
|
*/
|
|
#if defined(USE_SDL) && !defined(__APPLE__)
|
|
#include <math.h>
|
|
#include <algorithm>
|
|
#include "gl_context.h"
|
|
#include "rend/gui.h"
|
|
#include "sdl/sdl.h"
|
|
#include "cfg/option.h"
|
|
|
|
SDLGLGraphicsContext theGLContext;
|
|
|
|
bool SDLGLGraphicsContext::Init()
|
|
{
|
|
#ifdef GLES
|
|
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_ES);
|
|
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
|
|
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
|
|
#else
|
|
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
|
|
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 4);
|
|
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 3);
|
|
#endif
|
|
|
|
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_DEPTH_SIZE, 24);
|
|
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
|
|
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
|
|
|
|
if (!sdl_recreate_window(SDL_WINDOW_OPENGL))
|
|
return false;
|
|
|
|
glcontext = SDL_GL_CreateContext(window);
|
|
#ifndef GLES
|
|
if (glcontext == SDL_GLContext())
|
|
{
|
|
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, 0);
|
|
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
|
|
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 0);
|
|
glcontext = SDL_GL_CreateContext(window);
|
|
}
|
|
#endif
|
|
if (glcontext == SDL_GLContext())
|
|
{
|
|
ERROR_LOG(RENDERER, "Error creating SDL GL context");
|
|
SDL_DestroyWindow(window);
|
|
window = nullptr;
|
|
return false;
|
|
}
|
|
SDL_GL_MakeCurrent(window, NULL);
|
|
|
|
SDL_GL_GetDrawableSize(window, &settings.display.width, &settings.display.height);
|
|
|
|
float ddpi, hdpi, vdpi;
|
|
if (!SDL_GetDisplayDPI(SDL_GetWindowDisplayIndex(window), &ddpi, &hdpi, &vdpi))
|
|
screen_dpi = (int)roundf(std::max(hdpi, vdpi));
|
|
|
|
INFO_LOG(RENDERER, "Created SDL Window and GL Context successfully");
|
|
|
|
SDL_GL_MakeCurrent(window, glcontext);
|
|
// Swap at vsync
|
|
swapOnVSync = config::VSync;
|
|
swapInterval = 1;
|
|
int displayIndex = SDL_GetWindowDisplayIndex(window);
|
|
if (displayIndex < 0)
|
|
WARN_LOG(RENDERER, "Cannot get the window display index: %s", SDL_GetError());
|
|
else
|
|
{
|
|
SDL_DisplayMode mode{};
|
|
if (SDL_GetDesktopDisplayMode(displayIndex, &mode) == 0) {
|
|
INFO_LOG(RENDERER, "Monitor refresh rate: %d Hz", mode.refresh_rate);
|
|
if (mode.refresh_rate > 100)
|
|
swapInterval = 2;
|
|
}
|
|
}
|
|
|
|
SDL_GL_SetSwapInterval(swapOnVSync ? swapInterval : 0);
|
|
|
|
#ifdef GLES
|
|
load_gles_symbols();
|
|
#else
|
|
if (gl3wInit() == -1 || !gl3wIsSupported(3, 0))
|
|
{
|
|
ERROR_LOG(RENDERER, "gl3wInit failed or GL 3.0 not supported");
|
|
return false;
|
|
}
|
|
#endif
|
|
PostInit();
|
|
|
|
return true;
|
|
}
|
|
|
|
void SDLGLGraphicsContext::Swap()
|
|
{
|
|
do_swap_automation();
|
|
if (swapOnVSync == (settings.input.fastForwardMode || !config::VSync))
|
|
{
|
|
swapOnVSync = (!settings.input.fastForwardMode && config::VSync);
|
|
SDL_GL_SetSwapInterval(swapOnVSync ? swapInterval : 0);
|
|
}
|
|
SDL_GL_SwapWindow(window);
|
|
|
|
// Check if drawable has been resized
|
|
SDL_GL_GetDrawableSize(window, &settings.display.width, &settings.display.height);
|
|
#ifdef __SWITCH__
|
|
float newScaling = settings.display.height == 720 ? 1.5f : 1.0f;
|
|
if (newScaling != scaling)
|
|
{
|
|
// Restart the UI to take the new scaling factor into account
|
|
scaling = newScaling;
|
|
gui_term();
|
|
gui_init();
|
|
}
|
|
#endif
|
|
}
|
|
|
|
void SDLGLGraphicsContext::Term()
|
|
{
|
|
PreTerm();
|
|
if (glcontext != nullptr)
|
|
{
|
|
SDL_GL_DeleteContext(glcontext);
|
|
glcontext = nullptr;
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|