84 lines
3.3 KiB
C++
84 lines
3.3 KiB
C++
#include "../fixtures/util.hpp"
|
|
|
|
#include <mbgl/map/map.hpp>
|
|
#include <mbgl/platform/default/headless_display.hpp>
|
|
#include <mbgl/platform/default/headless_view.hpp>
|
|
#include <mbgl/storage/default_file_source.hpp>
|
|
#include <mbgl/layer/custom_layer.hpp>
|
|
#include <mbgl/util/io.hpp>
|
|
#include <mbgl/util/mat4.hpp>
|
|
|
|
using namespace mbgl;
|
|
|
|
static const GLchar * vertexShaderSource = "attribute vec2 a_pos; void main() { gl_Position = vec4(a_pos, 0, 1); }";
|
|
static const GLchar * fragmentShaderSource = "void main() { gl_FragColor = vec4(0, 1, 0, 1); }";
|
|
|
|
class TestLayer : public CustomLayer {
|
|
public:
|
|
TestLayer() : CustomLayer("custom") {}
|
|
TestLayer(const TestLayer& copy) : CustomLayer(copy) {} // Don't copy GL resources
|
|
|
|
~TestLayer() {
|
|
if (program) {
|
|
MBGL_CHECK_ERROR(glDeleteBuffers(1, &buffer));
|
|
MBGL_CHECK_ERROR(glDetachShader(program, vertexShader));
|
|
MBGL_CHECK_ERROR(glDetachShader(program, fragmentShader));
|
|
MBGL_CHECK_ERROR(glDeleteShader(vertexShader));
|
|
MBGL_CHECK_ERROR(glDeleteShader(fragmentShader));
|
|
MBGL_CHECK_ERROR(glDeleteProgram(program));
|
|
}
|
|
}
|
|
|
|
void initialize() override {
|
|
program = MBGL_CHECK_ERROR(glCreateProgram());
|
|
vertexShader = MBGL_CHECK_ERROR(glCreateShader(GL_VERTEX_SHADER));
|
|
fragmentShader = MBGL_CHECK_ERROR(glCreateShader(GL_FRAGMENT_SHADER));
|
|
|
|
MBGL_CHECK_ERROR(glShaderSource(vertexShader, 1, &vertexShaderSource, nullptr));
|
|
MBGL_CHECK_ERROR(glCompileShader(vertexShader));
|
|
MBGL_CHECK_ERROR(glAttachShader(program, vertexShader));
|
|
MBGL_CHECK_ERROR(glShaderSource(fragmentShader, 1, &fragmentShaderSource, nullptr));
|
|
MBGL_CHECK_ERROR(glCompileShader(fragmentShader));
|
|
MBGL_CHECK_ERROR(glAttachShader(program, fragmentShader));
|
|
MBGL_CHECK_ERROR(glLinkProgram(program));
|
|
a_pos = glGetAttribLocation(program, "a_pos");
|
|
|
|
GLfloat background[] = { -1,-1, 1,-1, -1,1, 1,1 };
|
|
MBGL_CHECK_ERROR(glGenBuffers(1, &buffer));
|
|
MBGL_CHECK_ERROR(glBindBuffer(GL_ARRAY_BUFFER, buffer));
|
|
MBGL_CHECK_ERROR(glBufferData(GL_ARRAY_BUFFER, 8 * sizeof(GLfloat), background, GL_STATIC_DRAW));
|
|
}
|
|
|
|
void render(const StyleRenderParameters&) const override {
|
|
MBGL_CHECK_ERROR(glUseProgram(program));
|
|
MBGL_CHECK_ERROR(glBindBuffer(GL_ARRAY_BUFFER, buffer));
|
|
MBGL_CHECK_ERROR(glEnableVertexAttribArray(a_pos));
|
|
MBGL_CHECK_ERROR(glVertexAttribPointer(a_pos, 2, GL_FLOAT, GL_FALSE, 0, NULL));
|
|
MBGL_CHECK_ERROR(glDisable(GL_STENCIL_TEST));
|
|
MBGL_CHECK_ERROR(glDisable(GL_DEPTH_TEST));
|
|
MBGL_CHECK_ERROR(glDrawArrays(GL_TRIANGLE_STRIP, 0, 4));
|
|
}
|
|
|
|
std::unique_ptr<StyleLayer> clone() const override {
|
|
return std::make_unique<TestLayer>(*this);
|
|
}
|
|
|
|
GLuint program = 0;
|
|
GLuint vertexShader = 0;
|
|
GLuint fragmentShader = 0;
|
|
GLuint buffer = 0;
|
|
GLuint a_pos = 0;
|
|
};
|
|
|
|
TEST(CustomLayer, Basic) {
|
|
auto display = std::make_shared<mbgl::HeadlessDisplay>();
|
|
HeadlessView view(display, 1);
|
|
DefaultFileSource fileSource(nullptr, test::getFileSourceRoot());
|
|
|
|
Map map(view, fileSource, MapMode::Still);
|
|
map.setStyleJSON(util::read_file("test/fixtures/api/empty.json"), "");
|
|
map.addLayer(std::make_unique<TestLayer>());
|
|
|
|
test::checkImage("test/fixtures/custom_layer/basic", test::render(map));
|
|
}
|