Initial commit

backends/graphics/ios/ios-graphics.cpp

@@ -0,0 +1,117 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+#define FORBIDDEN_SYMBOL_ALLOW_ALL
+
+#include "backends/graphics/ios/ios-graphics.h"
+#include "backends/graphics/ios/renderbuffer.h"
+#include "backends/graphics/opengl/pipelines/pipeline.h"
+#include "backends/platform/ios7/ios7_osys_main.h"
+
+iOSGraphicsManager::iOSGraphicsManager() :
+	_insets{0, 0, 0, 0} {
+	initSurface();
+}
+
+iOSGraphicsManager::~iOSGraphicsManager() {
+	deinitSurface();
+}
+
+void iOSGraphicsManager::initSurface() {
+	OSystem_iOS7 *sys = dynamic_cast<OSystem_iOS7 *>(g_system);
+
+	// Create OpenGL context
+	GLuint rbo = sys->createOpenGLContext();
+
+	notifyContextCreate(OpenGL::kContextGLES2,
+	new OpenGL::RenderbufferTarget(rbo),
+	OpenGL::Texture::getRGBAPixelFormat(),
+	OpenGL::Texture::getRGBAPixelFormat());
+	handleResize(sys->getScreenWidth(), sys->getScreenHeight());
+
+	_old_touch_mode = kTouchModeTouchpad;
+
+	// not in 3D, not in GUI
+	sys->applyTouchSettings(false, false);
+}
+
+void iOSGraphicsManager::deinitSurface() {
+	notifyContextDestroy();
+	dynamic_cast<OSystem_iOS7 *>(g_system)->destroyOpenGLContext();
+}
+
+void iOSGraphicsManager::notifyResize(const int width, const int height) {
+	handleResize(width, height);
+}
+
+bool iOSGraphicsManager::loadVideoMode(uint requestedWidth, uint requestedHeight, bool resizable, int antialiasing) {
+	// As GLES2 provides FBO, OpenGL graphics manager must ask us for a resizable surface
+	assert(resizable);
+	if (antialiasing != 0) {
+		warning("Requesting antialiased video mode while not available");
+	}
+
+	/* The iOS and tvOS video modes are always full screen */
+	return true;
+}
+
+void iOSGraphicsManager::showOverlay(bool inGUI) {
+	if (_overlayVisible && inGUI == _overlayInGUI)
+		return;
+
+	// Don't change touch mode when not changing mouse coordinates
+	if (inGUI) {
+		_old_touch_mode = dynamic_cast<OSystem_iOS7 *>(g_system)->getCurrentTouchMode();
+		// not in 3D, in overlay
+		dynamic_cast<OSystem_iOS7 *>(g_system)->applyTouchSettings(false, true);
+	} else if (_overlayInGUI) {
+		// Restore touch mode active before overlay was shown
+		dynamic_cast<OSystem_iOS7 *>(g_system)->setCurrentTouchMode(static_cast<TouchMode>(_old_touch_mode));
+	}
+
+	OpenGL::OpenGLGraphicsManager::showOverlay(inGUI);
+}
+
+void iOSGraphicsManager::hideOverlay() {
+	if (_overlayInGUI) {
+		// Restore touch mode active before overlay was shown
+		dynamic_cast<OSystem_iOS7 *>(g_system)->setCurrentTouchMode(static_cast<TouchMode>(_old_touch_mode));
+	}
+
+	OpenGL::OpenGLGraphicsManager::hideOverlay();
+}
+
+float iOSGraphicsManager::getHiDPIScreenFactor() const {
+	return dynamic_cast<OSystem_iOS7 *>(g_system)->getSystemHiDPIScreenFactor();
+}
+
+void iOSGraphicsManager::refreshScreen() {
+	dynamic_cast<OSystem_iOS7 *>(g_system)->refreshScreen();
+}
+
+bool iOSGraphicsManager::notifyMousePosition(Common::Point &mouse) {
+	mouse.x = CLIP<int16>(mouse.x, _activeArea.drawRect.left, _activeArea.drawRect.right);
+	mouse.y = CLIP<int16>(mouse.y, _activeArea.drawRect.top, _activeArea.drawRect.bottom);
+
+	setMousePosition(mouse.x, mouse.y);
+	mouse = convertWindowToVirtual(mouse.x, mouse.y);
+
+	return true;
+}