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https://github.com/dolphin-emu/dolphin.git
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Move GL interface code out of the OpenGL video backend.
This commit is contained in:
Scott Mansell
227
Source/Core/Common/GL/GLInterface/EGL.cpp
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227
Source/Core/Common/GL/GLInterface/EGL.cpp
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// Copyright 2012 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include "Common/GL/GLInterfaceBase.h"
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#include "Common/GL/GLInterface/EGL.h"
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#include "VideoCommon/DriverDetails.h"
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#include "VideoCommon/RenderBase.h"
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// Show the current FPS
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void cInterfaceEGL::Swap()
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{
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eglSwapBuffers(egl_dpy, egl_surf);
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}
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void cInterfaceEGL::SwapInterval(int Interval)
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{
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if (!DriverDetails::HasBug(DriverDetails::BUG_BROKENVSYNC))
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eglSwapInterval(egl_dpy, Interval);
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}
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void* cInterfaceEGL::GetFuncAddress(const std::string& name)
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{
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return (void*)eglGetProcAddress(name.c_str());
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}
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void cInterfaceEGL::DetectMode()
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{
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if (s_opengl_mode != MODE_DETECT)
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return;
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EGLint num_configs;
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bool supportsGL = false, supportsGLES2 = false, supportsGLES3 = false;
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std::array<int, 3> renderable_types = {
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EGL_OPENGL_BIT,
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(1 << 6), /* EGL_OPENGL_ES3_BIT_KHR */
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EGL_OPENGL_ES2_BIT,
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};
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for (auto renderable_type : renderable_types)
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{
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// attributes for a visual in RGBA format with at least
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// 8 bits per color
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int attribs[] = {
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EGL_RED_SIZE, 8,
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EGL_GREEN_SIZE, 8,
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EGL_BLUE_SIZE, 8,
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EGL_RENDERABLE_TYPE, renderable_type,
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EGL_NONE
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};
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// Get how many configs there are
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if (!eglChooseConfig( egl_dpy, attribs, nullptr, 0, &num_configs))
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{
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INFO_LOG(VIDEO, "Error: couldn't get an EGL visual config\n");
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continue;
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}
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EGLConfig* config = new EGLConfig[num_configs];
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// Get all the configurations
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if (!eglChooseConfig(egl_dpy, attribs, config, num_configs, &num_configs))
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{
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INFO_LOG(VIDEO, "Error: couldn't get an EGL visual config\n");
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delete[] config;
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continue;
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}
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for (int i = 0; i < num_configs; ++i)
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{
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EGLint attribVal;
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bool ret;
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ret = eglGetConfigAttrib(egl_dpy, config[i], EGL_RENDERABLE_TYPE, &attribVal);
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if (ret)
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{
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if (attribVal & EGL_OPENGL_BIT)
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supportsGL = true;
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if (attribVal & (1 << 6)) /* EGL_OPENGL_ES3_BIT_KHR */
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supportsGLES3 = true;
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if (attribVal & EGL_OPENGL_ES2_BIT)
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supportsGLES2 = true;
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}
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}
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delete[] config;
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}
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if (supportsGL)
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s_opengl_mode = GLInterfaceMode::MODE_OPENGL;
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else if (supportsGLES3)
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s_opengl_mode = GLInterfaceMode::MODE_OPENGLES3;
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else if (supportsGLES2)
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s_opengl_mode = GLInterfaceMode::MODE_OPENGLES2;
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if (s_opengl_mode == GLInterfaceMode::MODE_DETECT) // Errored before we found a mode
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s_opengl_mode = GLInterfaceMode::MODE_OPENGL; // Fall back to OpenGL
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}
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// Create rendering window.
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// Call browser: Core.cpp:EmuThread() > main.cpp:Video_Initialize()
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bool cInterfaceEGL::Create(void *window_handle, bool core)
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{
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const char *s;
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EGLint egl_major, egl_minor;
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egl_dpy = OpenDisplay();
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if (!egl_dpy)
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{
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INFO_LOG(VIDEO, "Error: eglGetDisplay() failed\n");
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return false;
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}
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if (!eglInitialize(egl_dpy, &egl_major, &egl_minor))
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{
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INFO_LOG(VIDEO, "Error: eglInitialize() failed\n");
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return false;
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}
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/* Detection code */
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EGLConfig config;
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EGLint num_configs;
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DetectMode();
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// attributes for a visual in RGBA format with at least
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// 8 bits per color
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int attribs[] = {
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EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
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EGL_RED_SIZE, 8,
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EGL_GREEN_SIZE, 8,
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EGL_BLUE_SIZE, 8,
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EGL_NONE };
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EGLint ctx_attribs[] = {
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EGL_CONTEXT_CLIENT_VERSION, 2,
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EGL_NONE
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};
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switch (s_opengl_mode)
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{
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case MODE_OPENGL:
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attribs[1] = EGL_OPENGL_BIT;
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ctx_attribs[0] = EGL_NONE;
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break;
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case MODE_OPENGLES2:
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attribs[1] = EGL_OPENGL_ES2_BIT;
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ctx_attribs[1] = 2;
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break;
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case MODE_OPENGLES3:
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attribs[1] = (1 << 6); /* EGL_OPENGL_ES3_BIT_KHR */
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ctx_attribs[1] = 3;
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break;
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default:
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ERROR_LOG(VIDEO, "Unknown opengl mode set\n");
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return false;
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break;
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}
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if (!eglChooseConfig( egl_dpy, attribs, &config, 1, &num_configs))
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{
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INFO_LOG(VIDEO, "Error: couldn't get an EGL visual config\n");
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exit(1);
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}
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if (s_opengl_mode == MODE_OPENGL)
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eglBindAPI(EGL_OPENGL_API);
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else
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eglBindAPI(EGL_OPENGL_ES_API);
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EGLNativeWindowType host_window = (EGLNativeWindowType) window_handle;
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EGLNativeWindowType native_window = InitializePlatform(host_window, config);
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s = eglQueryString(egl_dpy, EGL_VERSION);
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INFO_LOG(VIDEO, "EGL_VERSION = %s\n", s);
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s = eglQueryString(egl_dpy, EGL_VENDOR);
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INFO_LOG(VIDEO, "EGL_VENDOR = %s\n", s);
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s = eglQueryString(egl_dpy, EGL_EXTENSIONS);
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INFO_LOG(VIDEO, "EGL_EXTENSIONS = %s\n", s);
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s = eglQueryString(egl_dpy, EGL_CLIENT_APIS);
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INFO_LOG(VIDEO, "EGL_CLIENT_APIS = %s\n", s);
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egl_ctx = eglCreateContext(egl_dpy, config, EGL_NO_CONTEXT, ctx_attribs );
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if (!egl_ctx)
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{
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INFO_LOG(VIDEO, "Error: eglCreateContext failed\n");
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exit(1);
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}
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egl_surf = eglCreateWindowSurface(egl_dpy, config, native_window, nullptr);
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if (!egl_surf)
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{
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INFO_LOG(VIDEO, "Error: eglCreateWindowSurface failed\n");
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exit(1);
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}
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return true;
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}
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bool cInterfaceEGL::MakeCurrent()
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{
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return eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx);
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}
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bool cInterfaceEGL::ClearCurrent()
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{
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return eglMakeCurrent(egl_dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
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}
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// Close backend
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void cInterfaceEGL::Shutdown()
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{
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ShutdownPlatform();
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if (egl_ctx && !eglMakeCurrent(egl_dpy, egl_surf, egl_surf, egl_ctx))
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NOTICE_LOG(VIDEO, "Could not release drawing context.");
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if (egl_ctx)
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{
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eglMakeCurrent(egl_dpy, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
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if (!eglDestroyContext(egl_dpy, egl_ctx))
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NOTICE_LOG(VIDEO, "Could not destroy drawing context.");
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if (!eglDestroySurface(egl_dpy, egl_surf))
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NOTICE_LOG(VIDEO, "Could not destroy window surface.");
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if (!eglTerminate(egl_dpy))
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NOTICE_LOG(VIDEO, "Could not destroy display connection.");
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egl_ctx = nullptr;
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}
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}
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