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Tests: Add a simple LibGL render-test

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At the moment we just check if we *can* render a simple triangle, we do
not yet actually test if the image is indeed the triangle we wanted.

This test also outputs the rendered image when GL_DEBUG is enabled to a
file called "picture.bmp" for manual verification.

Co-authored-by: sunverwerth <s.unverwerth@serenityos.org>
This commit is contained in:
Hendiadyoin1 2021-11-29 18:18:34 +01:00 committed by Ali Mohammad Pur
parent 3a4dd5ff87
commit 7a27ecc135
4 changed files with 74 additions and 0 deletions
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6
Meta/Lagom/CMakeLists.txt
View file

@ -520,6 +520,12 @@ if (BUILD_LAGOM)
lagom_test(${source} LIBS LagomCompress)
endforeach()
# GL
file(GLOB LIBGL_TESTS CONFIGURE_DEPENDS "../../Tests/LibGL/*.cpp")
foreach(source ${LIBGL_TESTS})
lagom_test(${source} LIBS LagomGL)
endforeach()
# Regex
file(GLOB LIBREGEX_TESTS CONFIGURE_DEPENDS "../../Tests/LibRegex/*.cpp")
# RegexLibC test POSIX <regex.h> and contains many Serenity extensions

1
Tests/CMakeLists.txt
View file

@ -6,6 +6,7 @@ add_subdirectory(LibCore)
add_subdirectory(LibCpp)
add_subdirectory(LibELF)
add_subdirectory(LibGfx)
add_subdirectory(LibGL)
add_subdirectory(LibIMAP)
add_subdirectory(LibJS)
add_subdirectory(LibM)

7
Tests/LibGL/CMakeLists.txt Normal file
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@ -0,0 +1,7 @@
set(TEST_SOURCES
TestRender.cpp
)
foreach(source IN LISTS TEST_SOURCES)
serenity_test("${source}" LibGL LIBS LibGL)
endforeach()

60
Tests/LibGL/TestRender.cpp Normal file
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@ -0,0 +1,60 @@
/*
* Copyright (c) 2021, Leon Albrecht <leon2002.la@gmail.com>.
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibTest/TestCase.h>
#include <AK/Debug.h>
#include <AK/Format.h>
#include <LibGL/GL/gl.h>
#include <LibGL/GLContext.h>
#include <LibGfx/BMPWriter.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/FontDatabase.h>
#include <fcntl.h>
#include <unistd.h>
#define RENDER_WIDTH 16
#define RENDER_HEIGHT 16
TEST_CASE(simple_triangle)
{
auto bitmap = MUST(Gfx::Bitmap::try_create(Gfx::BitmapFormat::BGRx8888, { RENDER_WIDTH, RENDER_HEIGHT }));
auto context = GL::create_context(*bitmap);
GL::make_context_current(context);
glFrontFace(GL_CCW);
glCullFace(GL_BACK);
glEnable(GL_CULL_FACE);
glEnable(GL_DEPTH_TEST);
glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
glClearDepth(1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glBegin(GL_TRIANGLES);
glColor4f(1, 1, 1, 1);
glVertex2f(0, 1);
glVertex2f(-1, -1);
glVertex2f(1, -1);
glEnd();
context->present();
EXPECT_EQ(glGetError(), 0u);
// FIXME: Verify that the image is indeed correct
if constexpr (GL_DEBUG) {
// output the image to manually verify that the output is correct
Gfx::BMPWriter writer {};
auto buffer = writer.dump(bitmap);
int fd = open("./picture.bmp", O_CREAT | O_WRONLY, 0755);
EXPECT(fd > 0);
ssize_t nwritten = write(fd, buffer.data(), buffer.size());
EXPECT_EQ((size_t)nwritten, buffer.size());
close(fd);
}
}