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//
// Copyright (c) 2015 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// EGLX11VisualTest.cpp: tests for EGL_ANGLE_x11_visual extension
#include <gtest/gtest.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <X11/Xlib.h>
#include "OSWindow.h"
#include "test_utils/ANGLETest.h"
#include "x11/X11Window.h"
using namespace angle;
namespace
{
const EGLint contextAttribs[] = {EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE};
}
class EGLX11VisualHintTest : public ::testing::TestWithParam<angle::PlatformParameters>
{
public:
void SetUp() override
{
mEglGetPlatformDisplayEXT = reinterpret_cast<PFNEGLGETPLATFORMDISPLAYEXTPROC>(
eglGetProcAddress("eglGetPlatformDisplayEXT"));
mDisplay = XOpenDisplay(NULL);
}
std::vector<EGLint> getDisplayAttributes(int visualId) const
{
std::vector<EGLint> attribs;
attribs.push_back(EGL_PLATFORM_ANGLE_TYPE_ANGLE);
attribs.push_back(GetParam().getRenderer());
attribs.push_back(EGL_X11_VISUAL_ID_ANGLE);
attribs.push_back(visualId);
attribs.push_back(EGL_NONE);
return attribs;
}
unsigned int chooseDifferentVisual(unsigned int visualId)
{
int numVisuals;
XVisualInfo visualTemplate;
visualTemplate.screen = DefaultScreen(mDisplay);
XVisualInfo *visuals =
XGetVisualInfo(mDisplay, VisualScreenMask, &visualTemplate, &numVisuals);
EXPECT_TRUE(numVisuals >= 2);
for (int i = 0; i < numVisuals; ++i)
{
if (visuals[i].visualid != visualId)
{
int result = visuals[i].visualid;
XFree(visuals);
return result;
}
}
UNREACHABLE();
return -1;
}
protected:
PFNEGLGETPLATFORMDISPLAYEXTPROC mEglGetPlatformDisplayEXT;
Display *mDisplay;
};
// Test that display creation fails if the visual ID passed in invalid.
TEST_P(EGLX11VisualHintTest, InvalidVisualID)
{
// The test platform will log an error in this negative test.
IgnoreANGLEPlatformMessages();
static const int gInvalidVisualId = -1;
auto attributes = getDisplayAttributes(gInvalidVisualId);
EGLDisplay display =
mEglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, EGL_DEFAULT_DISPLAY, attributes.data());
ASSERT_TRUE(display != EGL_NO_DISPLAY);
ASSERT_TRUE(EGL_FALSE == eglInitialize(display, nullptr, nullptr));
ASSERT_EGL_ERROR(EGL_NOT_INITIALIZED);
}
// Test that context creation with a visual ID succeeds, that the context exposes
// only one config, and that a clear on a surface with this config works.
TEST_P(EGLX11VisualHintTest, ValidVisualIDAndClear)
{
// We'll test the extension with one visual ID but we don't care which one. This means we
// can use OSWindow to create a window and just grab its visual.
OSWindow *osWindow = CreateOSWindow();
osWindow->initialize("EGLX11VisualHintTest", 500, 500);
osWindow->setVisible(true);
Window xWindow = osWindow->getNativeWindow();
XWindowAttributes windowAttributes;
ASSERT_NE(0, XGetWindowAttributes(mDisplay, xWindow, &windowAttributes));
int visualId = windowAttributes.visual->visualid;
auto attributes = getDisplayAttributes(visualId);
EGLDisplay display =
mEglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, EGL_DEFAULT_DISPLAY, attributes.data());
ASSERT_NE(EGL_NO_DISPLAY, display);
ASSERT_TRUE(EGL_TRUE == eglInitialize(display, nullptr, nullptr));
// While this is not required by the extension, test that our implementation returns only one
// config, with the same native visual Id that we provided.
int nConfigs = 0;
ASSERT_TRUE(EGL_TRUE == eglGetConfigs(display, nullptr, 0, &nConfigs));
ASSERT_EQ(1, nConfigs);
int nReturnedConfigs = 0;
EGLConfig config;
ASSERT_TRUE(EGL_TRUE == eglGetConfigs(display, &config, 1, &nReturnedConfigs));
ASSERT_EQ(nConfigs, nReturnedConfigs);
EGLint eglNativeId;
ASSERT_TRUE(EGL_TRUE == eglGetConfigAttrib(display, config, EGL_NATIVE_VISUAL_ID, &eglNativeId));
ASSERT_EQ(visualId, eglNativeId);
// Finally, try to do a clear on the window.
EGLContext context = eglCreateContext(display, config, EGL_NO_CONTEXT, contextAttribs);
ASSERT_NE(EGL_NO_CONTEXT, context);
EGLSurface window = eglCreateWindowSurface(display, config, xWindow, nullptr);
ASSERT_EGL_SUCCESS();
eglMakeCurrent(display, window, window, context);
ASSERT_EGL_SUCCESS();
glViewport(0, 0, 500, 500);
glClearColor(0.0f, 0.0f, 1.0f, 1.0f);
glClear(GL_COLOR_BUFFER_BIT);
ASSERT_GL_NO_ERROR();
EXPECT_PIXEL_EQ(250, 250, 0, 0, 255, 255);
// Teardown
eglDestroySurface(display, window);
ASSERT_EGL_SUCCESS();
eglDestroyContext(display, context);
ASSERT_EGL_SUCCESS();
SafeDelete(osWindow);
eglMakeCurrent(display, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
eglTerminate(display);
}
// Test that EGL_BAD_MATCH is generated when trying to create an EGL window from
// an X11 window whose visual ID doesn't match the visual ID passed at display creation.
TEST_P(EGLX11VisualHintTest, InvalidWindowVisualID)
{
// Get the default visual ID, as a good guess of a visual id for which display
// creation will succeed.
int visualId;
{
OSWindow *osWindow = CreateOSWindow();
osWindow->initialize("EGLX11VisualHintTest", 500, 500);
osWindow->setVisible(true);
Window xWindow = osWindow->getNativeWindow();
XWindowAttributes windowAttributes;
ASSERT_NE(0, XGetWindowAttributes(mDisplay, xWindow, &windowAttributes));
visualId = windowAttributes.visual->visualid;
SafeDelete(osWindow);
}
auto attributes = getDisplayAttributes(visualId);
EGLDisplay display =
mEglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, EGL_DEFAULT_DISPLAY, attributes.data());
ASSERT_NE(EGL_NO_DISPLAY, display);
ASSERT_TRUE(EGL_TRUE == eglInitialize(display, nullptr, nullptr));
// Initialize the window with a visual id different from the display's visual id
int otherVisualId = chooseDifferentVisual(visualId);
ASSERT_NE(visualId, otherVisualId);
OSWindow *osWindow = new X11Window(otherVisualId);
osWindow->initialize("EGLX11VisualHintTest", 500, 500);
osWindow->setVisible(true);
Window xWindow = osWindow->getNativeWindow();
// Creating the EGL window should fail with EGL_BAD_MATCH
int nReturnedConfigs = 0;
EGLConfig config;
ASSERT_TRUE(EGL_TRUE == eglGetConfigs(display, &config, 1, &nReturnedConfigs));
ASSERT_EQ(1, nReturnedConfigs);
EGLSurface window = eglCreateWindowSurface(display, config, xWindow, nullptr);
ASSERT_EQ(EGL_NO_SURFACE, window);
ASSERT_EGL_ERROR(EGL_BAD_MATCH);
SafeDelete(osWindow);
}
ANGLE_INSTANTIATE_TEST(EGLX11VisualHintTest, ES2_OPENGL());
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