400 lines
14 KiB
C++
400 lines
14 KiB
C++
#include <mbgl/platform/default/glfw_view.hpp>
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#include <mbgl/platform/gl.hpp>
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GLFWView::GLFWView(bool fullscreen_) : fullscreen(fullscreen_) {
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#ifdef NVIDIA
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glDiscardFramebufferEXT = (PFNGLDISCARDFRAMEBUFFEREXTPROC)glfwGetProcAddress("glDiscardFramebufferEXT");
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#endif
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}
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GLFWView::~GLFWView() {
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glfwTerminate();
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}
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void GLFWView::initialize(mbgl::Map *map_) {
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View::initialize(map_);
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if (!glfwInit()) {
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fprintf(stderr, "Failed to initialize glfw\n");
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exit(1);
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}
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GLFWmonitor *monitor = nullptr;
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if (fullscreen) {
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monitor = glfwGetPrimaryMonitor();
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}
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#ifdef DEBUG
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glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GL_TRUE);
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#endif
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#ifdef GL_ES_VERSION_2_0
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glfwWindowHint(GLFW_CLIENT_API, GLFW_OPENGL_ES_API);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 2);
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glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 0);
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#endif
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glfwWindowHint(GLFW_RED_BITS, 8);
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glfwWindowHint(GLFW_GREEN_BITS, 8);
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glfwWindowHint(GLFW_BLUE_BITS, 8);
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glfwWindowHint(GLFW_ALPHA_BITS, 8);
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glfwWindowHint(GLFW_STENCIL_BITS, 8);
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glfwWindowHint(GLFW_DEPTH_BITS, 16);
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window = glfwCreateWindow(1024, 768, "Mapbox GL", monitor, NULL);
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if (!window) {
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glfwTerminate();
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fprintf(stderr, "Failed to initialize window\n");
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exit(1);
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}
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glfwSetWindowUserPointer(window, this);
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glfwMakeContextCurrent(window);
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int width, height;
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glfwGetWindowSize(window, &width, &height);
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int fb_width, fb_height;
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glfwGetFramebufferSize(window, &fb_width, &fb_height);
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resize(window, 0, 0);
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glfwSetCursorPosCallback(window, mousemove);
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glfwSetMouseButtonCallback(window, mouseclick);
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glfwSetWindowSizeCallback(window, resize);
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glfwSetFramebufferSizeCallback(window, resize);
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glfwSetScrollCallback(window, scroll);
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glfwSetKeyCallback(window, key);
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const std::string extensions = reinterpret_cast<const char *>(glGetString(GL_EXTENSIONS));
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{
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using namespace mbgl;
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if (extensions.find("GL_KHR_debug") != std::string::npos) {
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gl::DebugMessageControl = (gl::PFNGLDEBUGMESSAGECONTROLPROC)glfwGetProcAddress("glDebugMessageControl");
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gl::DebugMessageInsert = (gl::PFNGLDEBUGMESSAGEINSERTPROC)glfwGetProcAddress("glDebugMessageInsert");
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gl::DebugMessageCallback = (gl::PFNGLDEBUGMESSAGECALLBACKPROC)glfwGetProcAddress("glDebugMessageCallback");
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gl::GetDebugMessageLog = (gl::PFNGLGETDEBUGMESSAGELOGPROC)glfwGetProcAddress("glGetDebugMessageLog");
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gl::GetPointerv = (gl::PFNGLGETPOINTERVPROC)glfwGetProcAddress("glGetPointerv");
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gl::PushDebugGroup = (gl::PFNGLPUSHDEBUGGROUPPROC)glfwGetProcAddress("glPushDebugGroup");
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gl::PopDebugGroup = (gl::PFNGLPOPDEBUGGROUPPROC)glfwGetProcAddress("glPopDebugGroup");
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gl::ObjectLabel = (gl::PFNGLOBJECTLABELPROC)glfwGetProcAddress("glObjectLabel");
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gl::GetObjectLabel = (gl::PFNGLGETOBJECTLABELPROC)glfwGetProcAddress("glGetObjectLabel");
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gl::ObjectPtrLabel = (gl::PFNGLOBJECTPTRLABELPROC)glfwGetProcAddress("glObjectPtrLabel");
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gl::GetObjectPtrLabel = (gl::PFNGLGETOBJECTPTRLABELPROC)glfwGetProcAddress("glGetObjectPtrLabel");
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assert(gl::DebugMessageControl != nullptr);
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assert(gl::DebugMessageInsert != nullptr);
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assert(gl::DebugMessageCallback != nullptr);
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assert(gl::GetDebugMessageLog != nullptr);
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assert(gl::GetPointerv != nullptr);
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assert(gl::PushDebugGroup != nullptr);
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assert(gl::PopDebugGroup != nullptr);
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assert(gl::ObjectLabel != nullptr);
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assert(gl::GetObjectLabel != nullptr);
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assert(gl::ObjectPtrLabel != nullptr);
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assert(gl::GetObjectPtrLabel != nullptr);
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} else {
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if (extensions.find("GL_ARB_debug_output") != std::string::npos) {
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gl::DebugMessageControl = (gl::PFNGLDEBUGMESSAGECONTROLPROC)glfwGetProcAddress("glDebugMessageControlARB");
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gl::DebugMessageInsert = (gl::PFNGLDEBUGMESSAGEINSERTPROC)glfwGetProcAddress("glDebugMessageInsertARB");
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gl::DebugMessageCallback = (gl::PFNGLDEBUGMESSAGECALLBACKPROC)glfwGetProcAddress("glDebugMessageCallbackARB");
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gl::GetDebugMessageLog = (gl::PFNGLGETDEBUGMESSAGELOGPROC)glfwGetProcAddress("glGetDebugMessageLogARB");
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gl::GetPointerv = (gl::PFNGLGETPOINTERVPROC)glfwGetProcAddress("glGetPointerv");
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assert(gl::DebugMessageControl != nullptr);
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assert(gl::DebugMessageInsert != nullptr);
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assert(gl::DebugMessageCallback != nullptr);
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assert(gl::GetDebugMessageLog != nullptr);
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assert(gl::GetPointerv != nullptr);
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}
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if (extensions.find("GL_EXT_debug_marker") != std::string::npos) {
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gl::InsertEventMarkerEXT = (gl::PFNGLINSERTEVENTMARKEREXTPROC)glfwGetProcAddress("glInsertEventMarkerEXT");
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gl::PushGroupMarkerEXT = (gl::PFNGLPUSHGROUPMARKEREXTPROC)glfwGetProcAddress("glPushGroupMarkerEXT");
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gl::PopGroupMarkerEXT = (gl::PFNGLPOPGROUPMARKEREXTPROC)glfwGetProcAddress("glPopGroupMarkerEXT");
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assert(gl::InsertEventMarkerEXT != nullptr);
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assert(gl::PushGroupMarkerEXT != nullptr);
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assert(gl::PopGroupMarkerEXT != nullptr);
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}
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if (extensions.find("GL_EXT_debug_label") != std::string::npos) {
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gl::LabelObjectEXT = (gl::PFNGLLABELOBJECTEXTPROC)glfwGetProcAddress("glLabelObjectEXT");
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gl::GetObjectLabelEXT = (gl::PFNGLGETOBJECTLABELEXTPROC)glfwGetProcAddress("glGetObjectLabelEXT");
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assert(gl::LabelObjectEXT != nullptr);
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assert(gl::GetObjectLabelEXT != nullptr);
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}
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}
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if (extensions.find("GL_ARB_vertex_array_object") != std::string::npos) {
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gl::BindVertexArray = (gl::PFNGLBINDVERTEXARRAYPROC)glfwGetProcAddress("glBindVertexArray");
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gl::DeleteVertexArrays = (gl::PFNGLDELETEVERTEXARRAYSPROC)glfwGetProcAddress("glDeleteVertexArrays");
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gl::GenVertexArrays = (gl::PFNGLGENVERTEXARRAYSPROC)glfwGetProcAddress("glGenVertexArrays");
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gl::IsVertexArray = (gl::PFNGLISVERTEXARRAYPROC)glfwGetProcAddress("glIsVertexArray");
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assert(gl::BindVertexArray != nullptr);
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assert(gl::DeleteVertexArrays != nullptr);
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assert(gl::GenVertexArrays != nullptr);
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assert(gl::IsVertexArray != nullptr);
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} else if (extensions.find("GL_APPLE_vertex_array_object") != std::string::npos) {
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gl::BindVertexArray = (gl::PFNGLBINDVERTEXARRAYPROC)glfwGetProcAddress("glBindVertexArrayAPPLE");
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gl::DeleteVertexArrays = (gl::PFNGLDELETEVERTEXARRAYSPROC)glfwGetProcAddress("glDeleteVertexArraysAPPLE");
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gl::GenVertexArrays = (gl::PFNGLGENVERTEXARRAYSPROC)glfwGetProcAddress("glGenVertexArraysAPPLE");
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gl::IsVertexArray = (gl::PFNGLISVERTEXARRAYPROC)glfwGetProcAddress("glIsVertexArrayAPPLE");
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assert(gl::BindVertexArray != nullptr);
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assert(gl::DeleteVertexArrays != nullptr);
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assert(gl::GenVertexArrays != nullptr);
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assert(gl::IsVertexArray != nullptr);
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}
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if (extensions.find("GL_ARB_get_program_binary") != std::string::npos) {
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gl::GetProgramBinary = (gl::PFNGLGETPROGRAMBINARYPROC)glfwGetProcAddress("glGetProgramBinary");
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gl::ProgramBinary = (gl::PFNGLPROGRAMBINARYPROC)glfwGetProcAddress("glProgramBinary");
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gl::ProgramParameteri = (gl::PFNGLPROGRAMPARAMETERIPROC)glfwGetProcAddress("glProgramParameteri");
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assert(gl::GetProgramBinary != nullptr);
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assert(gl::ProgramBinary != nullptr);
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assert(gl::ProgramParameteri != nullptr);
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}
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// Require packed depth stencil
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gl::isPackedDepthStencilSupported = true;
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gl::isDepth24Supported = true;
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}
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glfwMakeContextCurrent(nullptr);
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}
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void GLFWView::key(GLFWwindow *window, int key, int /*scancode*/, int action, int mods) {
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GLFWView *view = (GLFWView *)glfwGetWindowUserPointer(window);
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if (action == GLFW_RELEASE) {
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switch (key) {
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case GLFW_KEY_ESCAPE:
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glfwSetWindowShouldClose(window, true);
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break;
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case GLFW_KEY_TAB:
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view->map->toggleDebug();
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break;
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case GLFW_KEY_X:
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if (!mods)
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view->map->resetPosition();
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break;
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case GLFW_KEY_R:
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if (!mods) {
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view->map->setDefaultTransitionDuration(300);
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view->map->toggleClass("night");
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}
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break;
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case GLFW_KEY_N:
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if (!mods)
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view->map->resetNorth();
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break;
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}
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}
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}
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void GLFWView::scroll(GLFWwindow *window, double /*xoffset*/, double yoffset) {
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GLFWView *view = (GLFWView *)glfwGetWindowUserPointer(window);
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double delta = yoffset * 40;
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bool is_wheel = delta != 0 && std::fmod(delta, 4.000244140625) == 0;
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double absdelta = delta < 0 ? -delta : delta;
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double scale = 2.0 / (1.0 + std::exp(-absdelta / 100.0));
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// Make the scroll wheel a bit slower.
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if (!is_wheel) {
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scale = (scale - 1.0) / 2.0 + 1.0;
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}
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// Zooming out.
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if (delta < 0 && scale != 0) {
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scale = 1.0 / scale;
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}
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view->map->startScaling();
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view->map->scaleBy(scale, view->last_x, view->last_y);
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}
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void GLFWView::resize(GLFWwindow *window, int, int) {
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GLFWView *view = (GLFWView *)glfwGetWindowUserPointer(window);
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int width, height;
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glfwGetWindowSize(window, &width, &height);
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int fb_width, fb_height;
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glfwGetFramebufferSize(window, &fb_width, &fb_height);
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view->map->resize(width, height, (float)fb_width / (float)width, fb_width, fb_height);
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}
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void GLFWView::mouseclick(GLFWwindow *window, int button, int action, int modifiers) {
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GLFWView *view = (GLFWView *)glfwGetWindowUserPointer(window);
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if (button == GLFW_MOUSE_BUTTON_RIGHT ||
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(button == GLFW_MOUSE_BUTTON_LEFT && modifiers & GLFW_MOD_CONTROL)) {
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view->rotating = action == GLFW_PRESS;
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if (!view->rotating) {
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view->map->stopRotating();
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}
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} else if (button == GLFW_MOUSE_BUTTON_LEFT) {
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view->tracking = action == GLFW_PRESS;
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if (action == GLFW_RELEASE) {
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view->map->stopPanning();
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double now = glfwGetTime();
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if (now - view->last_click < 0.4 /* ms */) {
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if (modifiers & GLFW_MOD_SHIFT) {
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view->map->scaleBy(0.5, view->last_x, view->last_y, 0.5);
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} else {
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view->map->scaleBy(2.0, view->last_x, view->last_y, 0.5);
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}
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}
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view->last_click = now;
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}
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}
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}
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void GLFWView::mousemove(GLFWwindow *window, double x, double y) {
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GLFWView *view = (GLFWView *)glfwGetWindowUserPointer(window);
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if (view->tracking) {
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double dx = x - view->last_x;
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double dy = y - view->last_y;
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if (dx || dy) {
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view->map->startPanning();
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view->map->moveBy(dx, dy);
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}
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} else if (view->rotating) {
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view->map->startRotating();
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view->map->rotateBy(view->last_x, view->last_y, x, y);
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}
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view->last_x = x;
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view->last_y = y;
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}
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int GLFWView::run() {
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map->start();
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while (!glfwWindowShouldClose(window)) {
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if (map->needsSwap()) {
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glfwSwapBuffers(window);
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map->swapped();
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fps();
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}
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glfwWaitEvents();
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}
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map->stop([]() {
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glfwWaitEvents();
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});
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return 0;
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}
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void GLFWView::make_active() {
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glfwMakeContextCurrent(window);
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}
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void GLFWView::make_inactive() {
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glfwMakeContextCurrent(nullptr);
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}
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void GLFWView::notify() {
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glfwPostEmptyEvent();
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}
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void GLFWView::swap() {
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glfwPostEmptyEvent();
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}
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void GLFWView::notify_map_change(mbgl::MapChange /*change*/, mbgl::timestamp /*delay*/) {
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// no-op
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}
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void GLFWView::fps() {
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static int frames = 0;
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static double time_elapsed = 0;
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frames++;
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double current_time = glfwGetTime();
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if (current_time - time_elapsed >= 1) {
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fprintf(stderr, "FPS: %4.2f\n", frames / (current_time - time_elapsed));
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time_elapsed = current_time;
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frames = 0;
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}
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}
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namespace mbgl {
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namespace platform {
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double elapsed() { return glfwGetTime(); }
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#ifndef GL_ES_VERSION_2_0
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void show_debug_image(std::string name, const char *data, size_t width, size_t height) {
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glfwInit();
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static GLFWwindow *debug_window = nullptr;
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if (!debug_window) {
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debug_window = glfwCreateWindow(width, height, name.c_str(), nullptr, nullptr);
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if (!debug_window) {
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glfwTerminate();
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fprintf(stderr, "Failed to initialize window\n");
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exit(1);
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}
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}
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GLFWwindow *current_window = glfwGetCurrentContext();
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glfwSetWindowSize(debug_window, width, height);
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glfwMakeContextCurrent(debug_window);
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int fb_width, fb_height;
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glfwGetFramebufferSize(debug_window, &fb_width, &fb_height);
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float scale = (float)fb_width / (float)width;
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glPixelZoom(scale, -scale);
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glRasterPos2f(-1.0f, 1.0f);
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glDrawPixels(width, height, GL_LUMINANCE, GL_UNSIGNED_BYTE, data);
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glfwSwapBuffers(debug_window);
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glfwMakeContextCurrent(current_window);
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}
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void show_color_debug_image(std::string name, const char *data, size_t logical_width, size_t logical_height, size_t width, size_t height) {
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glfwInit();
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static GLFWwindow *debug_window = nullptr;
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if (!debug_window) {
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debug_window = glfwCreateWindow(logical_width, logical_height, name.c_str(), nullptr, nullptr);
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if (!debug_window) {
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glfwTerminate();
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fprintf(stderr, "Failed to initialize window\n");
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exit(1);
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}
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}
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GLFWwindow *current_window = glfwGetCurrentContext();
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glfwSetWindowSize(debug_window, logical_width, logical_height);
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glfwMakeContextCurrent(debug_window);
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int fb_width, fb_height;
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glfwGetFramebufferSize(debug_window, &fb_width, &fb_height);
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float x_scale = (float)fb_width / (float)width;
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float y_scale = (float)fb_height / (float)height;
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glClear(GL_COLOR_BUFFER_BIT);
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glEnable(GL_BLEND);
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glBlendFunc(GL_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glPixelZoom(x_scale, -y_scale);
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glRasterPos2f(-1.0f, 1.0f);
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glDrawPixels(width, height, GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, data);
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glfwSwapBuffers(debug_window);
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glfwMakeContextCurrent(current_window);
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}
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#endif
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}
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}
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