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7a27ecc135
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>
60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
/*
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* Copyright (c) 2021, Leon Albrecht <leon2002.la@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 <LibTest/TestCase.h>
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#include <AK/Debug.h>
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#include <AK/Format.h>
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#include <LibGL/GL/gl.h>
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#include <LibGL/GLContext.h>
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#include <LibGfx/BMPWriter.h>
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#include <LibGfx/Bitmap.h>
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#include <LibGfx/FontDatabase.h>
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#include <fcntl.h>
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#include <unistd.h>
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#define RENDER_WIDTH 16
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#define RENDER_HEIGHT 16
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TEST_CASE(simple_triangle)
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{
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auto bitmap = MUST(Gfx::Bitmap::try_create(Gfx::BitmapFormat::BGRx8888, { RENDER_WIDTH, RENDER_HEIGHT }));
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auto context = GL::create_context(*bitmap);
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GL::make_context_current(context);
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glFrontFace(GL_CCW);
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glCullFace(GL_BACK);
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glEnable(GL_CULL_FACE);
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glEnable(GL_DEPTH_TEST);
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glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
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glClearDepth(1.0);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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glBegin(GL_TRIANGLES);
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glColor4f(1, 1, 1, 1);
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glVertex2f(0, 1);
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glVertex2f(-1, -1);
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glVertex2f(1, -1);
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glEnd();
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context->present();
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EXPECT_EQ(glGetError(), 0u);
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// FIXME: Verify that the image is indeed correct
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if constexpr (GL_DEBUG) {
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// output the image to manually verify that the output is correct
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Gfx::BMPWriter writer {};
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auto buffer = writer.dump(bitmap);
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int fd = open("./picture.bmp", O_CREAT | O_WRONLY, 0755);
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EXPECT(fd > 0);
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ssize_t nwritten = write(fd, buffer.data(), buffer.size());
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EXPECT_EQ((size_t)nwritten, buffer.size());
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close(fd);
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}
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}
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