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6226520c45
For consistency with the Test.*Context classes for other backends, which live in their own implementation file with their own header, extract TestEGLContext to its own header and TU so that in cases where only a TestEGLContext is required (e.g. EmbedderTestBackingStoreProducerGL), we don't need to include all the various test GL surface classes as well. GetEGLError is used by both TestEGLContext and the TestGLSurface classes, so moves to its own utils file. No tests because this is a refactoring with no semantic changes, and the code itself is test code. Issue: https://github.com/flutter/flutter/issues/158998 [C++, Objective-C, Java style guides]: https://github.com/flutter/engine/blob/main/CONTRIBUTING.md#style
129 lines
4.3 KiB
C++
129 lines
4.3 KiB
C++
// Copyright 2013 The Flutter Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "flutter/testing/test_gl_context.h"
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include <EGL/eglplatform.h>
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#include <cstring>
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#include "flutter/fml/logging.h"
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#include "flutter/testing/test_gl_utils.h"
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namespace flutter::testing {
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namespace {
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bool HasExtension(const char* extensions, const char* name) {
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const char* r = strstr(extensions, name);
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auto len = strlen(name);
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// check that the extension name is terminated by space or null terminator
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return r != nullptr && (r[len] == ' ' || r[len] == 0);
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}
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void CheckSwanglekExtensions() {
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const char* extensions = ::eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
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FML_CHECK(HasExtension(extensions, "EGL_EXT_platform_base")) << extensions;
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FML_CHECK(HasExtension(extensions, "EGL_ANGLE_platform_angle_vulkan"))
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<< extensions;
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FML_CHECK(HasExtension(extensions,
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"EGL_ANGLE_platform_angle_device_type_swiftshader"))
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<< extensions;
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}
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EGLDisplay CreateSwangleDisplay() {
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CheckSwanglekExtensions();
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PFNEGLGETPLATFORMDISPLAYEXTPROC egl_get_platform_display_EXT =
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reinterpret_cast<PFNEGLGETPLATFORMDISPLAYEXTPROC>(
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eglGetProcAddress("eglGetPlatformDisplayEXT"));
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FML_CHECK(egl_get_platform_display_EXT)
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<< "eglGetPlatformDisplayEXT not available.";
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const EGLint display_config[] = {
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EGL_PLATFORM_ANGLE_TYPE_ANGLE,
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EGL_PLATFORM_ANGLE_TYPE_VULKAN_ANGLE,
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EGL_PLATFORM_ANGLE_DEVICE_TYPE_ANGLE,
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EGL_PLATFORM_ANGLE_DEVICE_TYPE_SWIFTSHADER_ANGLE,
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EGL_PLATFORM_ANGLE_NATIVE_PLATFORM_TYPE_ANGLE,
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EGL_PLATFORM_VULKAN_DISPLAY_MODE_HEADLESS_ANGLE,
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EGL_NONE,
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};
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return egl_get_platform_display_EXT(
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EGL_PLATFORM_ANGLE_ANGLE,
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reinterpret_cast<EGLNativeDisplayType*>(EGL_DEFAULT_DISPLAY),
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display_config);
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}
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} // namespace
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TestEGLContext::TestEGLContext() {
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display = CreateSwangleDisplay();
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FML_CHECK(display != EGL_NO_DISPLAY);
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auto result = ::eglInitialize(display, nullptr, nullptr);
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FML_CHECK(result == EGL_TRUE) << GetEGLError();
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config = {0};
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EGLint num_config = 0;
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const EGLint attribute_list[] = {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_ALPHA_SIZE,
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8,
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EGL_SURFACE_TYPE,
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EGL_PBUFFER_BIT,
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EGL_CONFORMANT,
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EGL_OPENGL_ES2_BIT,
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EGL_RENDERABLE_TYPE,
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EGL_OPENGL_ES2_BIT,
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EGL_NONE};
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result = ::eglChooseConfig(display, attribute_list, &config, 1, &num_config);
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FML_CHECK(result == EGL_TRUE) << GetEGLError();
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FML_CHECK(num_config == 1) << GetEGLError();
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{
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const EGLint context_attributes[] = {
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EGL_CONTEXT_CLIENT_VERSION, //
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2, //
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EGL_NONE //
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};
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onscreen_context =
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::eglCreateContext(display, // display connection
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config, // config
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EGL_NO_CONTEXT, // sharegroup
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context_attributes // context attributes
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);
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FML_CHECK(onscreen_context != EGL_NO_CONTEXT) << GetEGLError();
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offscreen_context =
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::eglCreateContext(display, // display connection
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config, // config
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onscreen_context, // sharegroup
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context_attributes // context attributes
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);
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FML_CHECK(offscreen_context != EGL_NO_CONTEXT) << GetEGLError();
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}
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}
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TestEGLContext::~TestEGLContext() {
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auto result = ::eglDestroyContext(display, onscreen_context);
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FML_CHECK(result == EGL_TRUE) << GetEGLError();
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result = ::eglDestroyContext(display, offscreen_context);
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FML_CHECK(result == EGL_TRUE) << GetEGLError();
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result = ::eglTerminate(display);
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FML_CHECK(result == EGL_TRUE);
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}
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} // namespace flutter::testing
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