mirror of
https://github.com/RGBCube/serenity
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161082e282
Let's not assume there is one global OpenGL context because it might change once we will start creating >1 page inside single WebContent process or contexts for WebGL.
108 lines
2.5 KiB
C++
108 lines
2.5 KiB
C++
/*
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* Copyright (c) 2023, Aliaksandr Kalenik <kalenik.aliaksandr@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <LibAccelGfx/Context.h>
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#ifdef AK_OS_MACOS
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# define GL_SILENCE_DEPRECATION
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# include <OpenGL/CGLRenderers.h>
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# include <OpenGL/CGLTypes.h>
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# include <OpenGL/OpenGL.h>
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# include <OpenGL/gl3.h>
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#endif
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namespace AccelGfx {
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#ifdef AK_OS_MACOS
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static void make_context_cgl()
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{
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CGLContextObj context = NULL;
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CGLPixelFormatAttribute attributes[4] = {
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kCGLPFAOpenGLProfile,
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(CGLPixelFormatAttribute)kCGLOGLPVersion_3_2_Core,
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kCGLPFAAccelerated,
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(CGLPixelFormatAttribute)0
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};
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CGLPixelFormatObj pixelFormat = NULL;
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GLint numPixelFormats = 0;
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CGLError error = CGLChoosePixelFormat(attributes, &pixelFormat, &numPixelFormats);
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if (error) {
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VERIFY_NOT_REACHED();
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}
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error = CGLCreateContext(pixelFormat, NULL, &context);
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if (error) {
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VERIFY_NOT_REACHED();
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}
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error = CGLSetCurrentContext(context);
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if (error) {
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VERIFY_NOT_REACHED();
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}
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VERIFY(glGetError() == GL_NO_ERROR);
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}
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#else
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static void make_context_egl()
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{
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EGLDisplay egl_display = eglGetDisplay(EGL_DEFAULT_DISPLAY);
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EGLint major;
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EGLint minor;
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eglInitialize(egl_display, &major, &minor);
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EGLBoolean ok = eglBindAPI(EGL_OPENGL_API);
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if (ok == EGL_FALSE) {
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dbgln("eglBindAPI failed");
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VERIFY_NOT_REACHED();
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}
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static EGLint const config_attributes[] = {
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EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
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EGL_BLUE_SIZE, 8,
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EGL_GREEN_SIZE, 8,
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EGL_RED_SIZE, 8,
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EGL_DEPTH_SIZE, 8,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
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EGL_NONE
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};
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EGLConfig egl_config;
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EGLint num_configs;
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eglChooseConfig(egl_display, config_attributes, &egl_config, 1, &num_configs);
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static EGLint const context_attributes[] = {
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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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EGLContext egl_context = eglCreateContext(egl_display, egl_config, EGL_NO_CONTEXT, context_attributes);
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if (egl_context == EGL_FALSE) {
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dbgln("eglCreateContext failed");
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VERIFY_NOT_REACHED();
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}
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EGLBoolean result = eglMakeCurrent(egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE, egl_context);
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if (result == EGL_FALSE) {
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dbgln("eglMakeCurrent failed");
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VERIFY_NOT_REACHED();
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}
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}
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#endif
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OwnPtr<Context> Context::create()
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{
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#ifdef AK_OS_MACOS
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make_context_cgl();
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#else
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make_context_egl();
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#endif
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return make<Context>();
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}
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}
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