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9aff2c386cbb5146c3f68596db7e432bd48fa1ea
MapLibreParticleLab/platform/default/glfw_view.cpp
John Firebaugh 9aff2c386c Remove invalid map->terminate() 
Map has already been destroyed by this point, so the
call is invalid. The work that terminate() would do
has already been done.
2014-12-04 14:31:29 -08:00

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