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#define BOOST_TEST_MODULE test_render
#include "test-helpers.hpp"
#include <boost/test/data/test_case.hpp>
#include <boost/test/unit_test.hpp>
#include <game/geoData.h>
#include <game/terrain.h>
#include <gfx/gl/sceneRenderer.h>
#include <gfx/models/texture.h>
#include <lib/glArrays.h>
#include <maths.h>
#include <ui/applicationBase.h>
#include <ui/window.h>
class TestRenderOutput {
public:
TestRenderOutput() : size {640, 480}
{
glBindFramebuffer(GL_FRAMEBUFFER, output);
const auto configuregdata
= [this](const GLuint data, const GLint format, const GLenum type, const GLenum attachment) {
glBindTexture(GL_TEXTURE_2D, data);
glTexImage2D(GL_TEXTURE_2D, 0, format, size.x, size.y, 0, GL_RGBA, type, NULL);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glFramebufferTexture2D(GL_FRAMEBUFFER, attachment, GL_TEXTURE_2D, data, 0);
};
configuregdata(outImage, GL_RGBA, GL_UNSIGNED_BYTE, GL_COLOR_ATTACHMENT0);
glDrawBuffer(GL_COLOR_ATTACHMENT0);
glBindRenderbuffer(GL_RENDERBUFFER, depth);
glRenderbufferStorage(GL_RENDERBUFFER, GL_DEPTH_COMPONENT, size.x, size.y);
glFramebufferRenderbuffer(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_RENDERBUFFER, depth);
// finally check if framebuffer is complete
if (glCheckFramebufferStatus(GL_FRAMEBUFFER) != GL_FRAMEBUFFER_COMPLETE) {
throw std::runtime_error("Framebuffer not complete!");
}
}
const glm::ivec2 size;
glFrameBuffer output;
glRenderBuffer depth;
glTexture outImage;
};
class TestMainWindow : public Window {
// This exists only to hold an OpenGL context open for the duration of the tests,
// in the same way a real main window would always exist.
public:
TestMainWindow() : Window {1, 1, __FILE__, SDL_WINDOW_OPENGL | SDL_WINDOW_HIDDEN}
{
glEnable(GL_DEBUG_OUTPUT);
glDebugMessageCallback(
[](GLenum source, GLenum type, GLuint id, GLenum severity, GLsizei length, const GLchar * message,
const void *) {
char buf[BUFSIZ];
snprintf(buf, BUFSIZ, "GL CALLBACK: %s type = 0x%x, severity = 0x%x, message = %s",
(type == GL_DEBUG_TYPE_ERROR ? "** GL ERROR **" : ""), type, severity, message);
switch (type) {
case GL_DEBUG_TYPE_ERROR:
case GL_DEBUG_TYPE_PERFORMANCE:
case GL_DEBUG_TYPE_PORTABILITY:
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR:
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR:
BOOST_TEST_ERROR(buf);
}
BOOST_TEST_MESSAGE(buf);
},
nullptr);
}
void
tick(TickDuration) override
{
}
};
class TestScene : public SceneProvider {
Terrain terrain {[]() {
auto gd = std::make_shared<GeoData>(GeoData::Limits {{0, 0}, {100, 100}});
gd->generateRandom();
return gd;
}()};
void
content(const SceneShader & shader) const
{
terrain.render(shader);
}
void
lights(const SceneShader &) const
{
}
};
BOOST_GLOBAL_FIXTURE(ApplicationBase);
BOOST_GLOBAL_FIXTURE(TestMainWindow);
BOOST_FIXTURE_TEST_SUITE(w, TestRenderOutput);
BOOST_AUTO_TEST_CASE(basic)
{
SceneRenderer ss {size, output};
ss.camera.setView({-10, -10, 60}, glm::normalize(glm::vec3 {1, 1, -0.5F}));
TestScene scene;
ss.render(scene);
glDisable(GL_DEBUG_OUTPUT);
Texture::save(outImage, size, "/tmp/basic.tga");
}
BOOST_AUTO_TEST_CASE(pointlight)
{
SceneRenderer ss {size, output};
ss.camera.setView({-10, -10, 60}, glm::normalize(glm::vec3 {1, 1, -0.5F}));
class PointLightScene : public TestScene {
public:
void
environment(const SceneShader &, const SceneRenderer & r) const override
{
r.setAmbientLight({0.2F, 0.2F, 0.2F});
r.setDirectionalLight({}, down, *this);
}
void
lights(const SceneShader & shader) const override
{
for (int x = 50; x < 100; x += 20) {
for (int y = 50; y < 2000; y += 20) {
shader.pointLight.add({x, y, 4}, {1.0, 1.0, 1.0}, 0.1);
}
}
}
};
PointLightScene scene;
ss.render(scene);
glDisable(GL_DEBUG_OUTPUT);
Texture::save(outImage, size, "/tmp/pointlight.tga");
}
BOOST_AUTO_TEST_SUITE_END();
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