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#define NCINE_INCLUDE_OPENGL
#include "../CommonHeaders.h"
#include "../../Main.h"
#include "IGfxDevice.h"
#include "../Primitives/Colorf.h"
#include "GL/GLDepthTest.h"
#include "GL/GLBlending.h"
#include "GL/GLClearColor.h"
#include "GL/GLViewport.h"
#if defined(DEATH_TARGET_EMSCRIPTEN)
# include <emscripten/html5.h>
# include "../Application.h"
#endif
namespace nCine
{
#if defined(DEATH_TARGET_EMSCRIPTEN)
bool IGfxDevice::emscriptenHandleResize(int eventType, const EmscriptenUiEvent* event, void* userData)
{
# if defined(DEATH_TRACE)
double cssWidth = 0.0;
double cssHeight = 0.0;
emscripten_get_element_css_size("canvas", &cssWidth, &cssHeight);
float pixelRatio2 = emscripten_get_device_pixel_ratio();
LOGI("Canvas was resized to {}x{} (canvas size is {}x{}; ratio is {})", (int)(event->windowInnerWidth * pixelRatio2), (int)(event->windowInnerHeight * pixelRatio2), (int)cssWidth, (int)cssHeight, pixelRatio2);
# endif
if (event->windowInnerWidth > 0 && event->windowInnerHeight > 0) {
IGfxDevice* gfxDevice = static_cast<IGfxDevice*>(userData);
# if defined(EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3)
// `contrib.glfw3` should handle HiDPI automatically
gfxDevice->setResolutionInternal(static_cast<int>(event->windowInnerWidth), static_cast<int>(event->windowInnerHeight));
# else
float pixelRatio = emscripten_get_device_pixel_ratio();
gfxDevice->setResolutionInternal(static_cast<int>(event->windowInnerWidth * pixelRatio), static_cast<int>(event->windowInnerHeight * pixelRatio));
# endif
}
return true;
}
bool IGfxDevice::emscriptenHandleFullscreen(int eventType, const EmscriptenFullscreenChangeEvent* event, void* userData)
{
# if defined(DEATH_TRACE)
double cssWidth = 0.0;
double cssHeight = 0.0;
emscripten_get_element_css_size("canvas", &cssWidth, &cssHeight);
float pixelRatio2 = emscripten_get_device_pixel_ratio();
LOGI("Canvas was resized to {}x{} (canvas size is {}x{}; ratio is {})", (int)(event->elementWidth * pixelRatio2), (int)(event->elementHeight * pixelRatio2), (int)cssWidth, (int)cssHeight, pixelRatio2);
# endif
IGfxDevice* gfxDevice = static_cast<IGfxDevice*>(userData);
gfxDevice->isFullscreen_ = event->isFullscreen;
if (event->elementWidth > 0 && event->elementHeight > 0) {
# if defined(EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3)
// `contrib.glfw3` should handle HiDPI automatically
gfxDevice->setResolutionInternal(static_cast<int>(event->elementWidth), static_cast<int>(event->elementHeight));
# else
float pixelRatio = emscripten_get_device_pixel_ratio();
gfxDevice->setResolutionInternal(static_cast<int>(event->elementWidth * pixelRatio), static_cast<int>(event->elementHeight * pixelRatio));
# endif
}
return true;
}
# if defined(WITH_GLFW)
bool IGfxDevice::emscriptenHandleFocus(int eventType, const EmscriptenFocusEvent* event, void* userData)
{
if (eventType == EMSCRIPTEN_EVENT_FOCUS) {
theApplication().SetFocus(true);
} else if (eventType == EMSCRIPTEN_EVENT_BLUR) {
theApplication().SetFocus(false);
}
return true;
}
# endif
#endif
IGfxDevice::IGfxDevice(const WindowMode& windowMode, const GLContextInfo& glContextInfo, const DisplayMode& displayMode)
: drawableWidth_(windowMode.width), drawableHeight_(windowMode.height), width_(windowMode.width), height_(windowMode.height),
glContextInfo_(glContextInfo), isFullscreen_(windowMode.isFullscreen), displayMode_(displayMode), numMonitors_(0)
{
#if defined(DEATH_TARGET_EMSCRIPTEN)
double cssWidth = 0.0;
double cssHeight = 0.0;
// Referring to the first element of type <canvas> in the DOM
emscripten_get_element_css_size("canvas", &cssWidth, &cssHeight);
# if defined(EMSCRIPTEN_USE_PORT_CONTRIB_GLFW3)
// `contrib.glfw3` should handle HiDPI automatically
width_ = static_cast<int>(cssWidth);
height_ = static_cast<int>(cssHeight);
# else
float pixelRatio = emscripten_get_device_pixel_ratio();
width_ = static_cast<int>(cssWidth * pixelRatio);
height_ = static_cast<int>(cssHeight * pixelRatio);
# endif
drawableWidth_ = width_;
drawableHeight_ = height_;
EmscriptenFullscreenChangeEvent fsce;
emscripten_get_fullscreen_status(&fsce);
if (isFullscreen_ != fsce.isFullscreen) {
isFullscreen_ = fsce.isFullscreen;
// TODO: Broadcast event here?
}
emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, this, true, IGfxDevice::emscriptenHandleResize);
emscripten_set_fullscreenchange_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, this, true, IGfxDevice::emscriptenHandleFullscreen);
# if defined(WITH_GLFW)
// GLFW does not seem to correctly handle Emscripten focus and blur events
emscripten_set_blur_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, nullptr, true, IGfxDevice::emscriptenHandleFocus);
emscripten_set_focus_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, nullptr, true, IGfxDevice::emscriptenHandleFocus);
# endif
#endif
currentVideoMode_.width = width_;
currentVideoMode_.height = height_;
currentVideoMode_.refreshRate = 0.0f;
currentVideoMode_.redBits = displayMode.redBits();
currentVideoMode_.greenBits = displayMode.greenBits();
currentVideoMode_.blueBits = displayMode.blueBits();
}
/*! \internal Having this method inlined does not seem to work correctly with Qt5 on Linux */
unsigned int IGfxDevice::numMonitors() const
{
return numMonitors_;
}
const IGfxDevice::Monitor& IGfxDevice::monitor(unsigned int index) const
{
DEATH_ASSERT(index < numMonitors_);
if (index >= numMonitors_) {
index = 0;
}
return monitors_[index];
}
float IGfxDevice::windowScalingFactor() const
{
#if defined(DEATH_TARGET_APPLE)
float factor = drawableWidth() / static_cast<float>(width());
#else
Vector2f scale = monitor().scale;
float factor = (scale.X > scale.Y ? scale.X : scale.Y);
#endif
return factor;
}
void IGfxDevice::initGLViewport()
{
GLViewport::InitRect(0, 0, drawableWidth_, drawableHeight_);
}
void IGfxDevice::setupGL()
{
glDisable(GL_DITHER);
GLBlending::SetBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
GLDepthTest::Enable();
}
}
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