411 lines
11 KiB
C++
411 lines
11 KiB
C++
// 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 <array>
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#include <cstdlib>
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#include <sstream>
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#include <vector>
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#include "Common/GL/GLInterface/EGL.h"
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#include "Common/Logging/Log.h"
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#include "Core/Config/GraphicsSettings.h"
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#ifndef EGL_KHR_create_context
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#define EGL_KHR_create_context 1
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#define EGL_CONTEXT_MAJOR_VERSION_KHR 0x3098
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#define EGL_CONTEXT_MINOR_VERSION_KHR 0x30FB
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#define EGL_CONTEXT_FLAGS_KHR 0x30FC
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#define EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR 0x30FD
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#define EGL_CONTEXT_OPENGL_RESET_NOTIFICATION_STRATEGY_KHR 0x31BD
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#define EGL_NO_RESET_NOTIFICATION_KHR 0x31BE
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#define EGL_LOSE_CONTEXT_ON_RESET_KHR 0x31BF
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#define EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR 0x00000001
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#define EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR 0x00000002
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#define EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR 0x00000004
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#define EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR 0x00000001
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#define EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR 0x00000002
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#define EGL_OPENGL_ES3_BIT_KHR 0x00000040
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#endif /* EGL_KHR_create_context */
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// Show the current FPS
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void cInterfaceEGL::Swap()
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{
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if (egl_surf != EGL_NO_SURFACE)
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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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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 != GLInterfaceMode::MODE_DETECT)
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return;
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bool preferGLES = Config::Get(Config::GFX_PREFER_GLES);
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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[] = {EGL_RED_SIZE,
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8,
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EGL_GREEN_SIZE,
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8,
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EGL_BLUE_SIZE,
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8,
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EGL_RENDERABLE_TYPE,
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renderable_type,
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EGL_SURFACE_TYPE,
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m_has_handle ? EGL_WINDOW_BIT : 0,
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EGL_NONE};
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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");
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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");
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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 (preferGLES)
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{
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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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else if (supportsGL)
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s_opengl_mode = GLInterfaceMode::MODE_OPENGL;
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}
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else
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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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}
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if (s_opengl_mode == GLInterfaceMode::MODE_OPENGL)
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{
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INFO_LOG(VIDEO, "Using OpenGL");
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}
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else if (s_opengl_mode == GLInterfaceMode::MODE_OPENGLES3)
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{
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INFO_LOG(VIDEO, "Using OpenGL|ES 3");
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}
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else if (s_opengl_mode == GLInterfaceMode::MODE_OPENGLES2)
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{
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INFO_LOG(VIDEO, "Using OpenGL|ES 2");
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}
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else if (s_opengl_mode == GLInterfaceMode::MODE_DETECT)
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{
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// Errored before we found a mode
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ERROR_LOG(VIDEO, "Error: Failed to detect OpenGL flavour, falling back to OpenGL");
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// This will fail to create a context, as it'll try to use the same attribs we just failed to
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// find a matching config with
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s_opengl_mode = GLInterfaceMode::MODE_OPENGL;
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}
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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 stereo, bool core)
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{
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EGLint egl_major, egl_minor;
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bool supports_core_profile = false;
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egl_dpy = OpenDisplay();
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m_host_window = (EGLNativeWindowType)window_handle;
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m_has_handle = !!window_handle;
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m_core = core;
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if (!egl_dpy)
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{
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INFO_LOG(VIDEO, "Error: eglGetDisplay() failed");
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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");
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return false;
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}
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/* Detection code */
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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[] = {EGL_RENDERABLE_TYPE,
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EGL_OPENGL_ES2_BIT,
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EGL_RED_SIZE,
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8,
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EGL_GREEN_SIZE,
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8,
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EGL_BLUE_SIZE,
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8,
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EGL_SURFACE_TYPE,
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m_has_handle ? EGL_WINDOW_BIT : 0,
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EGL_NONE};
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std::vector<EGLint> ctx_attribs;
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switch (s_opengl_mode)
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{
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case GLInterfaceMode::MODE_OPENGL:
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attribs[1] = EGL_OPENGL_BIT;
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ctx_attribs = {EGL_NONE};
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break;
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case GLInterfaceMode::MODE_OPENGLES2:
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attribs[1] = EGL_OPENGL_ES2_BIT;
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ctx_attribs = {EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE};
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break;
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case GLInterfaceMode::MODE_OPENGLES3:
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attribs[1] = (1 << 6); /* EGL_OPENGL_ES3_BIT_KHR */
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ctx_attribs = {EGL_CONTEXT_CLIENT_VERSION, 3, EGL_NONE};
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break;
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default:
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ERROR_LOG(VIDEO, "Unknown opengl mode set");
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return false;
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break;
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}
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if (!eglChooseConfig(egl_dpy, attribs, &m_config, 1, &num_configs))
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{
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INFO_LOG(VIDEO, "Error: couldn't get an EGL visual config");
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return false;
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}
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if (s_opengl_mode == GLInterfaceMode::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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std::string tmp;
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std::istringstream buffer(eglQueryString(egl_dpy, EGL_EXTENSIONS));
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while (buffer >> tmp)
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{
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if (tmp == "EGL_KHR_surfaceless_context")
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m_supports_surfaceless = true;
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else if (tmp == "EGL_KHR_create_context")
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supports_core_profile = true;
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}
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if (supports_core_profile && core && s_opengl_mode == GLInterfaceMode::MODE_OPENGL)
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{
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std::array<std::pair<int, int>, 7> versions_to_try = {{
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{4, 5},
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{4, 4},
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{4, 3},
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{4, 2},
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{4, 1},
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{4, 0},
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{3, 3},
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}};
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for (const auto& version : versions_to_try)
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{
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std::vector<EGLint> core_attribs = {EGL_CONTEXT_MAJOR_VERSION_KHR,
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version.first,
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EGL_CONTEXT_MINOR_VERSION_KHR,
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version.second,
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EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR,
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EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR,
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EGL_CONTEXT_FLAGS_KHR,
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EGL_CONTEXT_OPENGL_FORWARD_COMPATIBLE_BIT_KHR,
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EGL_NONE};
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egl_ctx = eglCreateContext(egl_dpy, m_config, EGL_NO_CONTEXT, &core_attribs[0]);
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if (egl_ctx)
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{
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m_attribs = std::move(core_attribs);
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break;
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}
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}
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}
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if (!egl_ctx)
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{
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m_core = false;
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egl_ctx = eglCreateContext(egl_dpy, m_config, EGL_NO_CONTEXT, &ctx_attribs[0]);
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m_attribs = std::move(ctx_attribs);
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}
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if (!egl_ctx)
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{
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INFO_LOG(VIDEO, "Error: eglCreateContext failed");
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return false;
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}
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if (!CreateWindowSurface())
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{
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ERROR_LOG(VIDEO, "Error: CreateWindowSurface failed 0x%04x", eglGetError());
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return false;
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}
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return true;
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}
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std::unique_ptr<cInterfaceBase> cInterfaceEGL::CreateSharedContext()
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{
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std::unique_ptr<cInterfaceBase> context = std::make_unique<cInterfaceEGL>();
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if (!context->Create(this))
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return nullptr;
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return context;
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}
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bool cInterfaceEGL::Create(cInterfaceBase* main_context)
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{
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cInterfaceEGL* egl_context = static_cast<cInterfaceEGL*>(main_context);
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egl_dpy = egl_context->egl_dpy;
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m_core = egl_context->m_core;
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m_config = egl_context->m_config;
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m_supports_surfaceless = egl_context->m_supports_surfaceless;
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m_is_shared = true;
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m_has_handle = false;
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if (egl_context->GetMode() == GLInterfaceMode::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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egl_ctx =
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eglCreateContext(egl_dpy, m_config, egl_context->egl_ctx, egl_context->m_attribs.data());
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if (!egl_ctx)
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{
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INFO_LOG(VIDEO, "Error: eglCreateContext failed 0x%04x", eglGetError());
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return false;
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}
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if (!CreateWindowSurface())
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{
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ERROR_LOG(VIDEO, "Error: CreateWindowSurface failed 0x%04x", eglGetError());
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return false;
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}
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return true;
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}
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bool cInterfaceEGL::CreateWindowSurface()
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{
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if (m_has_handle)
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{
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EGLNativeWindowType native_window = InitializePlatform(m_host_window, m_config);
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egl_surf = eglCreateWindowSurface(egl_dpy, m_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");
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return false;
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}
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}
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else if (!m_supports_surfaceless)
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{
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EGLint attrib_list[] = {
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EGL_NONE,
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};
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egl_surf = eglCreatePbufferSurface(egl_dpy, m_config, attrib_list);
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if (!egl_surf)
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{
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INFO_LOG(VIDEO, "Error: eglCreatePbufferSurface failed");
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return false;
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}
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}
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else
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{
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egl_surf = EGL_NO_SURFACE;
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}
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return true;
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}
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void cInterfaceEGL::DestroyWindowSurface()
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{
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if (egl_surf != EGL_NO_SURFACE && !eglDestroySurface(egl_dpy, egl_surf))
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NOTICE_LOG(VIDEO, "Could not destroy window surface.");
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egl_surf = EGL_NO_SURFACE;
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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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void cInterfaceEGL::UpdateHandle(void* window_handle)
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{
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m_host_window = (EGLNativeWindowType)window_handle;
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m_has_handle = !!window_handle;
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}
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void cInterfaceEGL::UpdateSurface()
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{
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ClearCurrent();
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DestroyWindowSurface();
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CreateWindowSurface();
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MakeCurrent();
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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)
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{
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if (!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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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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DestroyWindowSurface();
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if (!m_is_shared && !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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