mirror of https://github.com/snes9xgit/snes9x.git
148 lines
3.8 KiB
C++
148 lines
3.8 KiB
C++
/*****************************************************************************\
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Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
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This file is licensed under the Snes9x License.
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For further information, consult the LICENSE file in the root directory.
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\*****************************************************************************/
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#include <stdio.h>
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#include <string.h>
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#include "wayland_egl_context.hpp"
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WaylandEGLContext::WaylandEGLContext()
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{
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egl_display = NULL;
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egl_surface = NULL;
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egl_context = NULL;
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egl_config = NULL;
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egl_window = NULL;
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x = 0;
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y = 0;
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}
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WaylandEGLContext::~WaylandEGLContext()
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{
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if (egl_context)
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eglDestroyContext(egl_display, egl_context);
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if (egl_surface)
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eglDestroySurface(egl_display, egl_surface);
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if (egl_window)
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wl_egl_window_destroy(egl_window);
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}
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bool WaylandEGLContext::attach(wl_display *display, wl_surface *surface, WaylandSurface::Metrics m)
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{
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wayland_surface = std::make_unique<WaylandSurface>();
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wayland_surface->attach(display, surface, m);
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return true;
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}
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bool WaylandEGLContext::create_context()
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{
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EGLint surface_attribs[] = {
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EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
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EGL_RED_SIZE, 8,
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EGL_BLUE_SIZE, 8,
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EGL_GREEN_SIZE, 8,
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EGL_ALPHA_SIZE, 0,
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EGL_NONE
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};
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EGLint core_context_attribs[] = {
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EGL_CONTEXT_OPENGL_PROFILE_MASK, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT,
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EGL_CONTEXT_MAJOR_VERSION, 3,
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EGL_CONTEXT_MINOR_VERSION, 3,
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EGL_NONE
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};
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EGLint compatibility_context_attribs[] = {
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EGL_CONTEXT_OPENGL_PROFILE_MASK, EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT,
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EGL_NONE
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};
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EGLint num_configs = 0;
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if (!gladLoaderLoadEGL(nullptr))
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{
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printf("Couldn't load EGL.\n");
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return false;
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}
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egl_display = eglGetDisplay((EGLNativeDisplayType)wayland_surface->display);
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int major, minor;
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eglInitialize(egl_display, &major, &minor);
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// Load the rest of the functions only after calling eglInitialize.
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if (!gladLoaderLoadEGL(egl_display))
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{
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printf("Couldn't load EGL functions.\n");
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}
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if (!eglChooseConfig(egl_display, surface_attribs, &egl_config, 1, &num_configs))
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{
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printf("Couldn't find matching config.\n");
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return false;
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}
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std::tie(width, height) = wayland_surface->get_size();
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egl_window = wl_egl_window_create(wayland_surface->child, width, height);
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if (!egl_window)
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{
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printf("Couldn't create window.\n");
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return false;
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}
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egl_surface = eglCreateWindowSurface(egl_display, egl_config, (EGLNativeWindowType)egl_window, NULL);
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if (!egl_surface)
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{
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printf("Couldn't create surface.\n");
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return false;
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}
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eglBindAPI(EGL_OPENGL_API);
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egl_context = eglCreateContext(egl_display, egl_config, EGL_NO_CONTEXT, core_context_attribs);
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if (!egl_context)
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{
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egl_context = eglCreateContext(egl_display, egl_config, EGL_NO_CONTEXT, compatibility_context_attribs);
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if (!egl_context)
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{
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printf("Couldn't create context.\n");
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return false;
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}
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}
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return true;
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}
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void WaylandEGLContext::resize(WaylandSurface::Metrics m)
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{
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std::tie(width, height) = wayland_surface->get_size_for_metrics(m);
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wl_egl_window_resize(egl_window, width, height, 0, 0);
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wayland_surface->resize(m);
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make_current();
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}
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void WaylandEGLContext::swap_buffers()
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{
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eglSwapBuffers(egl_display, egl_surface);
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wl_surface_commit(wayland_surface->child);
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}
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bool WaylandEGLContext::ready()
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{
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return true;
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}
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void WaylandEGLContext::make_current()
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{
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eglMakeCurrent(egl_display, egl_surface, egl_surface, egl_context);
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}
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void WaylandEGLContext::swap_interval(int frames)
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{
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eglSwapInterval(egl_display, frames);
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}
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